[go: up one dir, main page]

WO2016093019A1 - Dispositif d'échantillonnage de cendres volantes automatique et procédé d'échantillonnage de cendres volantes automatique - Google Patents

Dispositif d'échantillonnage de cendres volantes automatique et procédé d'échantillonnage de cendres volantes automatique Download PDF

Info

Publication number
WO2016093019A1
WO2016093019A1 PCT/JP2015/082161 JP2015082161W WO2016093019A1 WO 2016093019 A1 WO2016093019 A1 WO 2016093019A1 JP 2015082161 W JP2015082161 W JP 2015082161W WO 2016093019 A1 WO2016093019 A1 WO 2016093019A1
Authority
WO
WIPO (PCT)
Prior art keywords
fly ash
hopper
addition amount
determination device
amount determination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/082161
Other languages
English (en)
Japanese (ja)
Inventor
伊藤　一郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015220197A external-priority patent/JP5983849B2/ja
Application filed by Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to CN201580067359.3A priority Critical patent/CN107003214B/zh
Publication of WO2016093019A1 publication Critical patent/WO2016093019A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/70—Chemical treatment, e.g. pH adjustment or oxidation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting

Definitions

  • the present invention supplies a predetermined amount of fly ash for investigation to an addition amount determination device that determines an appropriate addition amount of a heavy metal fixing agent to fly ash in order to detoxify heavy metals in the fly ash.
  • the present invention relates to a fly ash automatic sampling apparatus and a fly ash automatic sampling method.
  • the fly ash generated when incinerating waste contains a large amount of heavy metals, it is necessary to detoxify the heavy metals in order to dispose of the fly ash.
  • a heavy metal fixing agent to the collected fly ash and knead it with a kneader.
  • the fly ash properties vary greatly depending on the type of incinerator, etc., so the amount of heavy metal fixing agent added to the fly ash must also be changed according to the fly ash properties. is there. For this reason, the sampled fly ash is supplied to the addition amount determination device, and the addition amount determination device determines the appropriate amount of heavy metal fixing agent by measuring the state of the fly ash.
  • Patent Document 1 The method for determining the amount of heavy metal fixing agent added is described in Patent Document 1, for example.
  • this method first, water is added to a predetermined amount of sampled fly ash (hereinafter referred to as survey fly ash) to prepare a sample slurry.
  • a heavy metal fixing agent is added to the slurry, and the amount of increase (positive change) of the oxidation-reduction potential (ORP) at this time is measured. And based on this measured value, the appropriate addition amount of the heavy metal fixing agent in fly ash is determined.
  • the investigation fly ash needs to be supplied to the addition amount determination device in a predetermined amount, that is, precisely a predetermined weight.
  • the fly ash sampling operation is performed by the operator directly taking the fly ash into the container from the fly ash chute in which the fly ash is sent downward or the fly ash silo storing the fly ash. It is common. In general, the fly ash for investigation is also collected by measuring the fly ash by the required weight from the sample fly ash.
  • the fly ash sampling operation is a very complicated operation that is performed multiple times in various time zones including late at night. In sampling operations, it is also necessary to avoid as much as possible opportunities for workers to contact harmful fly ash. For this reason, it is desirable that the fly ash sampling operation be performed automatically using equipment, without manual intervention.
  • fly ash sampling operation when the fly ash sampling operation is automatically performed, it is preferable to perform the fly ash from a fly ash chute that is sent downward so that the fly ash flows, rather than from a fly ash silo in which fly ash is likely to cause a bridge phenomenon. Therefore, for example, as shown in FIG. 13, it is conceivable that the screw feeder 100 which is a constant supply device is attached to the fly ash chute Y and the fly ash sampling operation is automatically performed. In this case, in the fly ash chute Y, a fly ash collection port 101c is formed in the upper part of the cylinder part 101b surrounding the screw shaft 101a of the transport part 101.
  • the amount of fly ash entering the sampling port 101c of the screw feeder 100 from the fly ash chute Y is not constant, and a predetermined amount of fly ash cannot be supplied from such a screw feeder 100 to the addition amount determination device. For this reason, it is conceivable to measure the weight of the fly ash flowing out of the screw feeder 100 and supply only a predetermined weight of fly ash as the fly ash for investigation to the addition amount determination device. There arises a problem of increasing the cost and complexity.
  • the present invention provides a simple fly ash automatic sampling device and a fly ash automatic sampling method capable of supplying a predetermined amount of fly ash sampled from a fly ash chute to an addition amount determination device.
  • the purpose is to do.
  • the fly ash in order to perform a treatment for detoxifying heavy metals in fly ash, the fly ash is investigated in an addition amount determining device that determines an appropriate addition amount of a heavy metal fixing agent to the fly ash.
  • a fly ash automatic sampling device for supplying a predetermined amount for the purpose, wherein the fly ash is sampled from the fly ash chute that is sent downward, and the fly ash sampled by the collection unit
  • a hopper part that temporarily stores the ash, and a fixed quantity supply part that allows the fly ash in the hopper part to flow into the addition amount determination device, and allows the fly ash in the hopper part to flow out at a constant flow rate, and
  • the fixed amount supply unit causes the fly ash in the hopper unit to flow out as a search fly ash by a predetermined amount at a constant flow rate.
  • the first fly-through mode in which the fly ash for investigation is supplied to the addition amount determination device, and each device of the addition amount decision device passes the fly ash taken inside and discharges it to the outside.
  • the fixed amount supply unit causes all the fly ash remaining in the hopper portion to flow out in the first passage mode
  • the constant amount supply unit is constant in the second passage mode.
  • the fly ash stored in the hopper part is caused to flow out in advance, and the fly ash in the hopper part that is not used for investigation is discharged through the addition amount determination device
  • each device of the addition amount determining device is in a standby mode between the first passage mode and the second passage mode, the fly ash from the fly ash chute is placed in the hopper portion. And having a cut causing controller.
  • each device of the addition amount determination device is set to repeat these steps in the order of the sample preparation mode, the first passage mode, the standby mode, and the second passage mode.
  • the fixed amount supply unit causes the fly ash in the hopper to flow out as a predetermined amount at a constant flow rate as the investigation fly ash, and determines the addition amount of this investigation fly ash. Supply to the device.
  • the fixed amount supply part causes all the fly ash remaining in the hopper part to flow out, and the fly ash in the hopper part that is not used for investigation. Is discharged through an addition amount determination device.
  • the hopper is empty.
  • the collection unit stores new fly ash from the fly ash chute in the hopper unit.
  • the fixed amount supply unit causes new fly ash in the hopper to flow out in advance until the constant flow rate is achieved.
  • the fly ash in the hopper not to be used to be discharged through the addition amount determining device.
  • the fixed amount supply unit can cause the fly ash to flow out at a constant flow rate.
  • the second invention of the present invention is characterized in that, in the case of the first invention, the quantitative supply section is a screw feeder or a table feeder.
  • the control unit is based on the bulk specific gravity of the fly ash that has been measured in advance so that a predetermined weight of the fly ash can be supplied.
  • the rotation speed or rotation time of the screw shaft of the screw feeder or the table of the table feeder rotating at a constant speed is set.
  • the fly ash in order to perform a treatment for detoxifying heavy metals in fly ash, the fly ash is investigated in an addition amount determination device that determines an appropriate addition amount of a heavy metal fixing agent to the fly ash.
  • a fixed quantity supply unit capable of causing the fly ash in the hopper part that has flowed out a predetermined amount at a constant flow rate to the addition amount determination device as the fly ash for investigation, and the fly ash supply
  • the quantitative supply unit is caused to flow out of the hopper unit.
  • the hopper part When all the fly ash remaining in the apparatus is in a standby mode after the residual fly ash discharge step for flowing the exhaust amount into the addition amount determination device and discharging it, and after the residual fly ash discharge step, From the fly ash chute where the fly ash is sent downward, the fly ash sampled by the collection unit is temporarily stored in the hopper unit, and after the fly ash storage step, the addition When each device of the quantity determination device is in the second passing mode in which the fly ash taken inside is passed through and discharged to the outside, the fixed quantity supply unit has made it flow out in advance until a constant flow rate is achieved. And an initial fly ash discharge step of causing the fly ash stored in the hopper to flow into the addition amount determining device and discharging the fly ash.
  • the fly ash in the hopper sampled from the fly ash chute can be supplied to the addition amount determination device simply by flowing out the fly ash in the fixed amount supply unit, thus simplifying the device and reducing the cost. Can be achieved.
  • every time fly ash is sampled all of the fly ash in the hopper that is not used for investigation is discharged to the outside by the quantitative supply unit via the addition amount determination device. For this reason, in these inventions, even if the fly ash sampling is repeated, the new fly ash and the previous fly ash are not mixed in the hopper. In this case, the treatment of fly ash that is not used for investigation can be easily and reliably performed using the addition amount determination device.
  • the fixed quantity supply unit is operated in advance until the fixed quantity supply unit can flow out the fly ash in the hopper at a constant flow rate, and is prepared for the supply of the check fly ash. Only the required amount of fly ash can be supplied to the addition amount determination device.
  • FIG. 7 is a cross-sectional view taken along arrow AA in FIG. 6.
  • FIG. 7 is a cross-sectional view taken along line BB in FIG. 6.
  • FIG. 1 is a diagram showing a flow from generation of fly ash to disposal.
  • the combustion gas G generated when the waste is incinerated in the incinerator includes fly ash H.
  • the fly ash H is removed by the bag filter B and is discharged from the chimney E.
  • the bag filter B has a large number of cylindrical filter cloths, the fly ash H captured by the bag filter B is sequentially removed and stored in the bottom of the bag filter B.
  • the fly ash H in the bag filter B is almost continuously sent to the fly ash silo S by the transport conveyor C and stored therein.
  • the fly ash H in the fly ash silo S is supplied to the kneading machine K through a fly ash chute Y that feeds the fly ash H downward while a flow rate is measured by a quantitative feeder F such as a screw feeder. Supplied in.
  • a predetermined flow rate of water is added to the fly ash H in the kneader K via the supply device T, and a heavy metal fixing agent is added at a predetermined flow rate.
  • the fly ash H, water, and heavy metal fixing agent are humidified and kneaded by the kneader K, and the elution of the heavy metal in the fly ash H is suppressed (detoxified state) sequentially from the kneader K. It is discharged and then disposed of.
  • the control device X monitors the level of the fly ash H in the fly ash silo S, and stops the operation of the quantitative feeder F when the level becomes low. However, since the supply amount of the fly ash H from the conveyor C and the carry-out amount of the fly ash H from the quantitative feeder F are normally balanced, the operation of the quantitative feeder F is stopped by the control device X. None happen.
  • the fly ash automatic sampling apparatus 1 samples the fly ash H from the fly ash chute Y that can be collected without causing the bridging phenomenon, and determines the addition amount by a predetermined amount for investigation. Supply to device 2.
  • the addition amount determination device 2 determines an appropriate addition amount of the heavy metal fixing agent for the fly ash H based on the fly ash H1 for investigation.
  • the appropriate addition amount of the heavy metal fixing agent obtained based on the fly ash H1 for investigation is transmitted to the control device X, and the supply device T is controlled by the control device X. It should be noted that unnecessary materials such as the survey fly ash H1 in the addition amount determination device 2 that has been surveyed are sent to the kneader K for processing.
  • FIG. 2 shows details of the automatic fly ash sampling apparatus 1 (hereinafter referred to as automatic sampling apparatus 1) according to an embodiment of the present invention, and a predetermined amount (predetermined weight) of fly ash for investigation from the automatic sampling apparatus 1.
  • the detail of the addition amount determination apparatus 2 to which H1 is supplied is shown.
  • the addition amount determination device 2 measures the amount of increase (positive change) in the oxidation-reduction potential (ORP) for the sampled fly ash H1 having a predetermined weight, and based on this measured value, Determine the appropriate amount of heavy metal fixative to be added. In this addition amount determination device 2, all operations are automatically performed. As shown in FIG. 2, the addition amount determination device 2 includes a measuring tank 60, a medicine supply unit 61, a water supply unit 62, a stirrer 63, a sensor unit 64, a discharge electromagnetic valve 65, a discharge A line 66 and a control unit 67 are provided.
  • the weighing tank 60 is a container whose upper part is opened and whose lower part has a small diameter like a funnel. Although not shown in the drawing, the measuring tank 60 is provided with a level meter, and the amount of water or the like added to the inside can be understood from the indicated value.
  • the drug supply unit 61 applies a predetermined amount of heavy metal fixing agent (hereinafter referred to as drug) to a sample (described later) in the measurement tank 60 corresponding to the predetermined amount of the fly ash H1 for investigation added to the measurement tank 60. Added.
  • drug heavy metal fixing agent
  • the water supply unit 62 supplies a predetermined amount of water to the measuring tank 60 in accordance with a predetermined weight of the fly ash H1 for investigation added to the measuring tank 60 in a water filling step M5 described later. Moreover, the water supply part 62 supplies so that the quantity of water required for washing
  • the stirrer 63 stirs the investigation fly ash H1 and water in the measuring tank 60 for a certain time to prepare a slurry as a sample. Further, the agitator 63 agitates the slurry and the chemical added to the slurry, and promotes the reaction between the heavy metal in the fly ash H1 for investigation and the chemical.
  • the sensor unit 64 measures the concentration of the drug in the slurry as an oxidation-reduction potential (ORP).
  • the discharge electromagnetic valve 65 is provided at the lower end of the measuring tank 60, and moves the unnecessary substances made of slurry and chemicals in the measuring tank 60 after measurement to the discharge line 66 side.
  • the discharge line 66 connects the discharge electromagnetic valve 65 and the kneading machine K, and discharges unnecessary materials in the measuring tank 60 into the kneading machine K.
  • the discharge line 66 is provided so as to incline vertically or downward so that an unnecessary object inside is poured into the kneader K by the action of gravity.
  • the control unit 67 has a function of controlling the operations of the medicine supply unit 61, the water supply unit 62, the stirrer 63, and the discharge electromagnetic valve 65. In addition, the control unit 67 receives the output from the sensor unit 64, and performs oxidation-reduction at the time when the drug is added to the slurry (when the drug concentration is high) and when the drug concentration becomes low due to the reaction with the heavy metal.
  • An arithmetic transmission unit 67a for calculating a difference in potential (ORP) is included.
  • This calculation transmission part 67a determines the appropriate addition amount of the chemical
  • the addition amount determination apparatus 2 will have a sample preparation process M1, a measurement process M2, a discharge process M3, a cleaning process M4, and a water filling process M5 as shown in FIG. It is driven to repeat.
  • each device of the addition amount determination device 2 is sequentially controlled by the control unit 67, the sample preparation mode for executing the sample preparation step M1, the measurement mode for executing the measurement step M2, and the discharge mode for executing the discharge step M3.
  • the cleaning mode for executing the cleaning step M4 and the water filling mode for executing the water filling step M5 are set.
  • a predetermined weight of the fly ash H1 for investigation is supplied from the automatic sampling device 1 into the measuring tank 60 in which a predetermined amount of water is stored by the water supply unit 62. Further, in this step M1, the investigation fly ash H1 and water are stirred for a predetermined time by the stirrer 63 to prepare a slurry as a sample. In the next measurement step M2, after a predetermined amount of chemical is added to the slurry, these are agitated by the agitator 63, and the reaction between the heavy metal in the fly ash H1 for investigation and the chemical is promoted.
  • the sensor 64 measures the oxidation-reduction potential (ORP) before and after the reaction, and transmits this value to the control unit 67.
  • the control unit 67 based on the output from the sensor unit 64, the calculation transmission unit 67a determines an appropriate addition amount of the heavy metal fixing agent to the investigation fly ash H1, and transmits this to the control device X on the kneader K side. To do.
  • the discharge electromagnetic valve 65 is opened, and unnecessary substances in the measuring tank 60 composed of the slurry and chemicals after the measurement are passed through the discharge line 66 into the kneading tank K. To be discharged.
  • the inside of the measuring tank 60 is washed with water supplied so as to be ejected from the water supply unit 62, and these wastewaters are discharged into the kneading tank K through the discharge line 66. Is done.
  • the discharge electromagnetic valve 65 is closed, and a predetermined amount of water is stored in the measuring tank 60 by the water supply unit 62.
  • the automatic sampling apparatus 1 supplies the fly ash H sampled by the fly ash chute Y to the addition amount determination apparatus 2 as a survey fly ash H1 by a predetermined weight.
  • the automatic sampling device 1 includes a fly ash collection unit 10, a hopper unit 20, a quantitative supply unit 30, and a control unit 50.
  • the fly ash collection unit 10 samples a certain amount of fly ash H from the fly ash chute Y to which the fly ash H is sent downward, and stores the sample in the hopper unit 20.
  • the amount of fly ash H collected by the fly ash collection unit 10 is an amount that can sufficiently supply the amount of the fly ash H1 for investigation to the addition amount determination device 2, that is, a predetermined weight.
  • the hopper unit 20 temporarily stores the fly ash H sampled by the fly ash collection unit 10.
  • the lower portion of the hopper portion 20 is formed in a funnel shape or a slope shape similar to this so that the fly ash H inside falls naturally due to gravity. Note that a vibration source may be attached to the funnel-shaped portion or the slope-shaped portion below the hopper portion 20 to reliably prevent the fly ash H bridging phenomenon.
  • the fixed amount supply unit 30 is provided below the hopper unit 20 and causes the fly ash H in the hopper unit 20 to flow into the measuring tank 60 of the addition amount determination device 2. Moreover, the fixed supply part 30 can flow out the fly ash H in the hopper part 20 at a fixed flow rate. That is, the fixed amount supply unit 30 causes the fly ash H in the hopper unit 20 to flow out at a constant flow rate by a predetermined weight, and supplies the flown fly ash H to the addition amount determination device 2 as the survey fly ash H1.
  • a screw feeder or a table feeder that can convey a powdery substance or a granular substance at a constant flow rate is used for the quantitative supply unit 30.
  • the control unit 50 exchanges signals with the control unit 67 of the addition amount determination device 2 and causes the fly ash collection unit 10 and the quantitative supply unit 30 to perform various operations. That is, the control unit 50 operates the fly ash collection unit 10 at a predetermined timing to store the fly ash H in the hopper unit 20. Moreover, the control part 50 makes ON / OFF operation
  • the addition amount determination apparatus 2 since the bulk specific gravity of the fly ash H is known, if the fixed amount supply unit 30 that flows out the fly ash H at a constant flow rate is operated for a predetermined time, the addition amount determination apparatus 2 has a predetermined weight of the search fly ash H1. Can be supplied.
  • the addition amount determination device 2 includes a first passage step N1 between the discharge step M2 and the cleaning step M3 as shown in FIG. And a standby process N2 and a second passing process N3 are provided.
  • the fly ash H that flows out from the fixed amount supply unit 30 and is not used for investigation passes through the measuring tank 60 and the discharge line 66 of the addition amount determination device 2. And are discharged to the kneader K.
  • a certain standby time is provided between the first passing process N1 and the second passing process N3.
  • the control unit 50 uses the quantitative supply unit 30 to add all of the fly ash H remaining in the hopper unit 20 after the investigation fly ash H1 flows out in correspondence with the first passage step N1. It is discharged to the determination device 2 side.
  • the control unit 50 operates the constant supply unit 30 immediately after the new fly ash H is stored in the hopper unit 20 so as to correspond to the second passage step N2, and the fly ash H is kept at a constant flow rate. Until it flows out, the fly ash H in the hopper 20 is discharged to the addition amount determination device 2 side. Further, the control unit 50 causes the fly ash collection unit 10 to store the new fly ash H in the fly ash chute Y in the hopper unit 20 in correspondence with the standby process N2.
  • Each device of the addition amount determination device 2 sequentially executes the first passage mode in which the first passage step N1 is executed, the standby mode in which the standby step N2 is executed, and the second passage step N3 by the control unit 67.
  • the state of each device in the first pass mode and the second pass mode is the same as in the cleaning mode, and water is supplied from the water supply unit 62 so as to be ejected into the measuring tank 60 and discharged.
  • the electromagnetic valve 65 is opened.
  • unnecessary substances such as fly ash H taken into the measuring tank 60 pass through the measuring tank 60 and the drainage line 66 and are discharged to the kneader K side.
  • the state of each device in the standby mode may be the same as in the first or second passing mode, the discharge electromagnetic valve 65 is kept open, and the water supply unit 62 is deactivated. Also good.
  • the fly ash supply operation P2 is started. That is, the fixed amount supply unit 30 is operated for a predetermined time, and the fly ash H in the hopper unit 20 is allowed to flow out as the search fly ash H1 by a predetermined flow rate at a constant flow rate, and the search fly ash H1 is added to the addition amount determining device. 2 is supplied. Then, when the fly ash supply operation P ⁇ b> 2 is finished, this is notified to the addition amount determination device 2.
  • the addition amount determination device 2 proceeds to the first passage process N1 through the measurement process M1 and the discharge process M2. And when the notification P3 that each apparatus of the addition amount determination apparatus 2 was switched to the 1st passage mode which performs the 1st passage process N1 is emitted, the residual fly ash discharge operation P4 will be started. That is, the fixed supply unit 30 operates for a predetermined time, and all fly ash H remaining in the hopper unit 20 is discharged to the kneader K side via the addition amount determination device 2. As a result, the hopper 20 is emptied. Then, when the residual fly ash discharge operation P ⁇ b> 4 ends, this is notified to the addition amount determination device 2.
  • the addition amount determination device 2 proceeds to the standby process N2. Then, when a notification P5 is issued that each device of the addition amount determination device 2 has been switched to the standby mode in which the standby process N2 is executed, the fly ash storage operation P6 is started. That is, the fly ash collection unit 10 is activated, and new fly ash H in the fly ash chute Y is stored in the hopper unit 20. Then, when the fly ash storage operation P ⁇ b> 6 ends, the fact is notified to the addition amount determination device 2.
  • the addition amount determination device 2 proceeds to the second passing step N3. Then, when a notification P7 is issued that each device of the addition amount determination device 2 has been switched to the second passage mode for executing the second passage step N3, the initial fly ash discharge operation P8 is started. That is, the fly ash H that has flowed out of the fixed amount supply unit 30 is added until the fixed amount supply unit 30 operates and the fly ash H newly stored in the hopper unit 20 flows out at a constant flow rate. To the kneader K side. In this case, when the constant supply unit 30 achieves a constant flow rate, that is, when it operates for a predetermined time, the constant supply unit 30 stops its operation, and the initial fly ash discharge operation P8 ends.
  • the addition amount determination device 2 proceeds to the sample preparation step M1 through the cleaning step M4 and the water filling step M5. And notification P1 that each apparatus of the addition amount determination apparatus 2 was switched to the sample preparation mode which performs the sample preparation process M1 is emitted.
  • the flying ash H1 sampled from the fly ash chute Y in the hopper 20 is simply flowed out by the quantitative supply unit 30, and the flying ash H1 for investigation is added. Therefore, simplification of the apparatus and cost reduction can be achieved.
  • this automatic sampling device every time the fly ash H is sampled, all of the fly ash H in the hopper 20 that is not used for investigation is discharged by the quantitative supply unit 30 to the addition amount determination device 2 side. ing. For this reason, in this automatic sampling device 1, even if sampling of fly ash H is repeated, it is possible to prevent mixing of new fly ash and previous fly ash in the hopper portion 20. In this case, the treatment of the fly ash H that is not used for investigation can be easily and reliably performed using the addition amount determination device 2.
  • this fixed quantity supply part 30 is operated in advance to supply the fly ash H1 for investigation. Therefore, it is possible to accurately supply the required amount of the fly ash H1 for investigation to the addition amount determination device 2.
  • the fly ash automatic sampling method includes a fly ash supply process Q1 that combines a sample preparation mode switch notification P1 and a fly ash supply operation P2, and a switch to the first passing mode. Residual fly ash discharge process Q2 combining notification P3 and residual fly ash discharge operation P4, fly ash storage process Q3 combining switch notification P5 to the standby mode and fly ash storage operation P6, and second passing mode There is an initial fly ash discharge process Q4 that combines the switch notification P7 and the initial fly ash discharge operation P8. In the fly ash automatic sampling method, the fly ash supply process Q1, the residual fly ash discharge process Q2, the fly ash storage process Q3, and the initial fly ash discharge process Q4 are repeated in this order.
  • the fly ash supply process Q1 when each device of the addition amount determination device 2 enters the sample preparation mode for receiving the fly ash H, the fixed quantity supply unit 30 that can flow out the fly ash H in the hopper 20 at a constant flow rate is provided. Then, the fly ash H in the hopper portion 20 that has flowed out by a predetermined amount at a constant flow rate is supplied to the addition amount determining device 2 as the fly ash H1 for investigation.
  • the residual fly ash discharge process Q2 after the fly ash supply process Q1, when each device of the addition amount determination device 2 enters the first passing mode in which the fly ash H taken in is passed and discharged to the outside, the fixed amount is determined.
  • the supply unit 30 causes all the fly ash H that has flowed out of the hopper unit 20 and remains in the hopper unit 20 to flow into the addition amount determination device 2 and be discharged.
  • the fly ash collection unit 10 starts from the fly ash chute Y to which the fly ash H is sent downward.
  • the sampled fly ash H is temporarily stored in the hopper unit 20.
  • the initial fly ash discharge process Q4 after the fly ash storage process Q3, when each device of the addition amount determination device 2 enters the second passage mode in which the fly ash H taken in is passed and discharged to the outside, the fixed amount is determined.
  • the supply unit 30 causes the fly ash H stored in the hopper unit 20, which has flowed out in advance before the constant flow rate is achieved, to flow into the addition amount determination device 2 and be discharged.
  • the same effect as that of the automatic sampling apparatus 1 can be obtained.
  • this addition amount determination apparatus 2 although the density
  • control unit 50 and the control unit 67 may be integrated, and the automatic sampling device 1 and the addition amount determination device 2 may be controlled by a common control unit.
  • the fly ash collection unit 10 is of a batch type that advances and retracts the slanted rod 13 whose upper side is opened with respect to the fly ash chute Y, and the fixed amount supply unit 30 continuously supplies the fly ash H at a constant flow rate. It is of the screw feeder type that conveys automatically.
  • the fly ash collection unit 10 is connected to the fly ash chute Y so as to be connected to the side of the fly ash chute Y.
  • the fly ash H is attached to the lower part of the retracting part 11 so as to be connected, and receives the fly ash H in the fly ash chute Y and the funnel-shaped guide part 12 for guiding the fly ash H to the hopper part 20.
  • the slanted rod 13 that slides down on the guide portion 12 and the air cylinder 14 that moves the slanted rod 13 back and forth in the fly ash chute Y and the retracting portion 11 are provided.
  • the air cylinder 14 passes through the end plate 11a of the retracting portion 11 and is attached thereto. Further, the end of the piston portion 14 a of the air cylinder 14 is attached to the oblique rod 13.
  • the oblique rod 13 is normally retracted in the retracting portion 11, but is advanced into the fly ash chute Y by the operation of the air cylinder 14 and retracted in the retracting portion 11 after a certain time.
  • the fixed amount supply unit 30 rotatably supports the screw shaft 31 having screw wings wound around the shaft portion, a cylindrical portion 32 covering the screw shaft 31, and the screw shaft 31. It has a pair of bearing portions 33, a motor 34 that rotationally drives the screw shaft 31, and a direction changing portion 35 that changes the direction of the fly ash H flowing out from the end of the cylindrical portion 32 at a constant flow rate downward. Yes.
  • the upper side of the cylinder portion 32 on the motor 34 is notched, and a fly ash H intake portion 32 a is formed here.
  • the hopper part 20 is attached to the taking-in part 32a side of the cylinder part 32. As shown in FIG.
  • the hopper portion 20 is formed in an oblique shape so that both the left and right sides along the screw shaft 31 of the fixed amount supply portion 30 spread upward from the intake portion 32 a. For this reason, the hopper unit 20 can store a sufficient amount of fly ash H above the intake unit 32 a of the fixed amount supply unit 30.
  • the upper part of the hopper part 20 is partially closed by a lid part 20 a connected to the guide part 12 of the fly ash collection part 10.
  • the quantitative supply unit 30 rotates the screw shaft 31 at a constant speed for a predetermined time, and the fly ash H flowing out at a constant flow rate is a predetermined weight. It supplies to the addition amount determination apparatus 2 as the fly ash H1. Subsequently, when each device of the addition amount determination device 2 is switched to the first passage mode, the fixed amount supply unit 30 rotates the screw shaft 31 for a predetermined time, and all the fly ash H remaining in the hopper unit 20 is obtained. Is discharged to the addition amount determination device 2 side.
  • the fly ash collection unit 10 operates the air cylinder 14 to move the slanted hail 13 into the fly ash chute Y, and the fly ash From the chute Y, the fly ash H that flows along the inclined rod 13 is moved into the hopper 20.
  • the fly ash collection unit 10 14 is operated to move the slanted rod 13 into the retracting portion 11.
  • the quantitative supply unit 30 rotates the screw shaft 31 at a constant speed, and the fly ash H in the hopper unit 20 is constant. Until it flows out at a flow rate, it is discharged to the addition amount determination device 2 side. Then, when the screw shaft 31 rotates for a predetermined time and the fly ash H flows out at a constant flow rate, the fixed amount supply unit 30 stops the rotation of the screw shaft 31.
  • the fly ash collection unit 10 may be of a damper type as shown in FIG.
  • the fly ash collection unit 10 is provided in the fly ash chute Y, with a damper 15 having an upper end swingable around a lower end 15a near the inner surface of the side wall Y1, and a lower end 15a side of the damper 15. It has a duct 16 that is provided and carries fly ash H collected along the damper 15 out of the fly ash chute Y, and a drive source (not shown) that swings the damper 15.
  • the damper 15 When sampling the fly ash H by the fly ash collection unit 10, the damper 15 is swung so as to cross the fly ash chute Y obliquely, and the fly ash H descending in the fly ash chute Y is What is necessary is just to gather on the opening part 16a side of the duct 16 along the damper 15.
  • FIG. When the fly ash H is not sampled, the damper 15 is swung so as to follow the side wall Y1 of the fly ash chute Y as indicated by a two-dot chain line, and the damper 15 opens the opening 16a of the duct 16. Should be blocked.
  • the fly ash collection unit 10 advances and retreats the fly ash container 17 whose upper portion is opened as shown in FIG. 10 into and out of the fly ash chute Y and the retreat unit 18, and the fly ash container 17 is moved to the retreat unit.
  • the fly ash H in the fly ash container 17 may be dropped downward by rotating downward in 18.
  • the fly ash collection unit 10 may be a screw feeder 100 as shown in FIG.
  • the screw feeder 100 is provided with a discharge port 101d for discharging the fly ash H in the transport unit 101 at a lower part of the cylinder part 101b of the transport unit 101.
  • the screw shaft 101a is reversely rotated, and the old fly ash H in the transport unit 101 is discharged into the fly ash chute Y from the discharge port 101d. .
  • the fixed quantity supply unit 30 may be a table feeder as shown in FIGS.
  • the fixed amount supply unit 30 is coaxial with the disc 37 and is spaced from the disc 37 above the disc 37 that is a table that can be rotated at a constant speed by a motor 36 around a vertical axis L.
  • a cylindrical fly ash supply unit 38 is provided.
  • the fixed amount supply unit 30 has a scraper 39 fixed at one end to the fly ash supply unit 38 and at the other end across the disk 37 and fixed to the fly ash outflow unit 40 outside the disk 37.
  • the upper surface of the disk 37 is provided so as to slide.
  • the hopper part 20 is attached on the fly ash supply part 38 of this fixed quantity supply part 30.
  • the fly ash H in the hopper 20 flows out from the gap D below the fly ash supply unit 38 onto the disc 37.
  • the fly ash H slides on the disc 37 by the rotation of the disc 37. Then, it is guided by the scraper 39 which does not move and collected in the fly ash outflow portion 40. In this case, since the disc 37 rotates at a constant speed, the fly ash H on the disc 37 is sent into the fly ash outflow portion 40 at a constant flow rate.
  • reference numeral 41 is a substrate to which the motor 36 is attached and rotatably supports the disc 36
  • reference numeral 42 is a cylindrical cover attached to the peripheral portion of the substrate 41.
  • Reference numeral 43 denotes an upper plate that covers the upper portion of the cover 42
  • reference numeral 44 denotes a bridge prevention lever.
  • the rotation time of the screw shaft 31 or the disk 37 that rotates at a constant speed is not controlled, but these rotations.
  • the number may be controlled.
  • the fly ash H is actually sampled by using a sampling device using the fly ash collection unit 10, the hopper unit 20, and the quantitative supply unit 30 shown in FIGS.
  • the results of collecting the survey fly ash H1 will be described.
  • the fixed amount supply unit 30 was operated for a predetermined time, and it was confirmed that the fixed amount supply unit 30 caused the fly ash H in the hopper unit 20 to flow out at a substantially constant flow rate.
  • the screw shaft 31 of the quantitative supply unit 30 was operated at a rotational speed of 40 rpm for 60 seconds so that 20 g of the fly ash H1 for investigation could be collected at one time.
  • the fly ash H1 for investigation was received in a container and its weight was measured with an electronic balance.
  • the coefficient of variation (CV) was 0.61%, and it was confirmed that the fly ash H1 having a predetermined weight could be accurately collected using this sampling device.

Landscapes

  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

[Problème] Fournir un dispositif d'échantillonnage de cendres volantes automatique simple capable de fournir uniquement une quantité prescrite de cendres volantes échantillonnées à partir d'une goulotte de cendres volantes à un dispositif de détermination de quantité d'additif. [Solution] La présente invention comporte une partie de collecte 10 pour échantillonner des cendres volantes H à partir d'une goulotte de cendres volantes Y, une partie de trémie 20 pour stocker les cendres volantes échantillonnées par la partie de collecte, une partie d'alimentation de quantité fixe 30 capable d'amener les cendres volantes à l'intérieur de la partie de trèmie à s'écouler à un débit constant, et une unité de commande 50 pour amener la partie d'alimentation de quantité fixe à alimenter une quantité fixe de cendres volantes pour inspection H1 vers un dispositif de détermination de quantité d'additif 2 lorsque l'équipement du dispositif de détermination de quantité d'additif passe dans un mode pour accepter des cendres volantes, ce qui conduit les cendres volantes à l'intérieur de la trémie non utilisée pour l'inspection à être déchargées à l'extérieur, par l'intermédiaire du dispositif de détermination de quantité d'additif lorsque l'équipement du dispositif de détermination de quantité d'additif passe dans un premier ou deuxième mode de transmission pour transmettre les cendres volantes, et amener l'unité de collecte à stocker de nouvelles cendres volantes à partir de la goulotte de cendres volantes à l'intérieur de la trémie lorsque l'équipement du dispositif de détermination de quantité d'additif passe dans un mode d'attente entre les premier et deuxième modes de transmission.
PCT/JP2015/082161 2014-12-10 2015-11-16 Dispositif d'échantillonnage de cendres volantes automatique et procédé d'échantillonnage de cendres volantes automatique Ceased WO2016093019A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201580067359.3A CN107003214B (zh) 2014-12-10 2015-11-16 飞灰的自动采样装置和飞灰的自动采样方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014-249748 2014-12-10
JP2014249748 2014-12-10
JP2015-220197 2015-11-10
JP2015220197A JP5983849B2 (ja) 2014-12-10 2015-11-10 飛灰の自動サンプリング装置及び自動サンプリング方法

Publications (1)

Publication Number Publication Date
WO2016093019A1 true WO2016093019A1 (fr) 2016-06-16

Family

ID=56107213

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/082161 Ceased WO2016093019A1 (fr) 2014-12-10 2015-11-16 Dispositif d'échantillonnage de cendres volantes automatique et procédé d'échantillonnage de cendres volantes automatique

Country Status (1)

Country Link
WO (1) WO2016093019A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114441244A (zh) * 2022-01-21 2022-05-06 慈溪中科众茂环保热电有限公司 一种垃圾焚烧飞灰取样方法、系统、存储介质及智能终端

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1176975A (ja) * 1997-09-01 1999-03-23 Kurita Water Ind Ltd 灰処理薬品の自動薬注装置
JPH11197628A (ja) * 1998-01-19 1999-07-27 Shimadzu Corp 焼却炉のばいじん処理装置
JP2003136036A (ja) * 2001-10-31 2003-05-13 Nitto Boseki Co Ltd 灰の処理方法及び装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1176975A (ja) * 1997-09-01 1999-03-23 Kurita Water Ind Ltd 灰処理薬品の自動薬注装置
JPH11197628A (ja) * 1998-01-19 1999-07-27 Shimadzu Corp 焼却炉のばいじん処理装置
JP2003136036A (ja) * 2001-10-31 2003-05-13 Nitto Boseki Co Ltd 灰の処理方法及び装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114441244A (zh) * 2022-01-21 2022-05-06 慈溪中科众茂环保热电有限公司 一种垃圾焚烧飞灰取样方法、系统、存储介质及智能终端
CN114441244B (zh) * 2022-01-21 2024-04-16 慈溪中科众茂环保热电有限公司 一种垃圾焚烧飞灰取样方法、系统、存储介质及智能终端

Similar Documents

Publication Publication Date Title
JP5983849B2 (ja) 飛灰の自動サンプリング装置及び自動サンプリング方法
KR102146030B1 (ko) 원료 용해 및 혼합교반장치
CN103909579B (zh) 泥浆拌制自动控制操作装置
US4636363A (en) Apparatus and method for conditioning radioactive wastes for ultimate storage
US3088711A (en) Machine for mixing particulate materials
CN209043811U (zh) 一种蔬菜用农药残留检测装置
CN1133177C (zh) 放射性废料处理装置
WO2016093019A1 (fr) Dispositif d'échantillonnage de cendres volantes automatique et procédé d'échantillonnage de cendres volantes automatique
CN112692981A (zh) 一种可泵送浇筑回填固化土的制备系统及制备工艺
CN109520883B (zh) 煤取样机
CN104772059B (zh) 一种分流调节石灰乳加药系统
JP2005103429A (ja) 砒素含有汚泥処理システム及び砒素含有汚泥処理方法
CN103962362B (zh) 一种垃圾预处理系统
CN205269646U (zh) 一种垃圾焚烧飞灰处理系统
CN109153049B (zh) 重金属固定化剂的添加量决定装置
CN219765245U (zh) 一种矿热炉还原剂配比混合装置
CN209985289U (zh) 一种制备二氧化氯消毒液的自动控制装置
JP2011081013A (ja) 粉粒体供給装置
CN217568610U (zh) 一种烟用香精香料自动配料机
CN208990741U (zh) 活性炭自动投加装置
CN214520965U (zh) 一种可泵送浇筑回填固化土的制备系统
CN218139019U (zh) 一种飞灰处理装置
CN222041442U (zh) 一种干混砂浆储料罐
CN212703661U (zh) 一种污染土壤修复试验设备
KR101773299B1 (ko) 더스트 제거장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15867714

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15867714

Country of ref document: EP

Kind code of ref document: A1