KR20130032887A - Apparatus for charging incineration ash and charging unit in the apparatus - Google Patents

Abstract

The present invention relates to an incinerator charging apparatus and a charging unit in the apparatus, a bottom ash collecting unit for sorting and drying the bottom ash generated in the incinerator, a fly ash collecting unit for collecting fly ash from the incinerator through a compressed air transfer method, the floor ash A collecting unit and a mixing unit for mixing the bottom ash and the fly ash collected in the fly ash collecting unit and a charging unit for feeding the incineration ash mixed in the mixing unit into the melting furnace through a piston reciprocating motion of a ramp feeder, wherein the charging unit A scraper, the tip of which is inclined at an angle, is attached to one surface of the ramp feeder, and the mixed incineration material is introduced into the melting furnace while removing the incineration material remaining in the incineration ash inlet.
Therefore, according to the present invention, when the charging device injects the incineration ash into the melting furnace through a scraper attached to the ram feeder of the charging apparatus, the incineration ash remaining around the incineration ash inlet and on the surface of the ramp feeder is melted and solidified by high heat in the melting furnace. There is an effect that does not occur.

Description

Apparatus for charging incineration ash and charging unit in the apparatus}

The present invention relates to an incinerator charging apparatus and a charging unit in the apparatus, and more particularly, a scraper attached to one side of a ramp feeder having a lower end inclined at an angle to remove an incineration ash remaining in an incineration ash inlet. Of course, the present invention relates to an incinerator charging apparatus and a charging unit in the apparatus for continuously inputting an incineration mixture of bottom ash and fly ash into a melting furnace.

Incinerator ash, the final by-product from waste incineration, generates about 10-15% of waste incineration. The ash consists of a bottom ash and fly ash, bottom ash is its constituent component a residual material that remains on the ground after the combustion in the furnace is composed of _{SiO 2, CaO, Al 2 O} 3 or the like. In addition, fly ash, which travels with the waste gases during the combustion of waste in incinerators, contains many minerals with heavy metals.

Therefore, in these treatment methods, the flooring material is cooled by using cooling water and then discharged to a reservoir using a conveyor, which is finally disposed of by landfill. After recovering the recoverable metallic components, they are mixed with fly ash or solidified and stabilized alone. Sometimes used as aggregate.

In recent years, incineration ash treatment has been developed by introducing molten technology used in the steel industry to slag and recycle the incineration ash. The incineration ash is treated at a high temperature of more than 1300 ℃ in the melting furnace, so the inorganic materials are treated by melt slag.

Ashes made of such incinerators and inorganic substances such as sand mixed in the waste are melted or softened at a high temperature to form clinker. As a cause of generating these clinkers, ash is produced by deterioration at high temperatures in a reducing atmosphere or by contacting and melting at high temperatures. In the incinerator, in order to prevent the formation of these clinker, the temperature distribution of the waste incineration layer is uniform or the stirring speed of the incineration layer is adjusted so that the ash does not directly contact the hot part.

However, in the melting furnace, since the incineration ash is directly melted, it is inevitable that the incineration ash is exposed to the high temperature portion. Therefore, when the incinerator is put into the melting furnace, the charging device is pushed into the hot melting furnace by the ramp feeder, and the incineration ash is not pushed into the melting furnace completely and is avoided remaining in the gap formed between the ram feeder surface and the inlet bottom and the wall surface. Can't. At this time, since the inside of the melting furnace maintains a high temperature of about 1300 ~ 1500 ° C, the incineration ash remaining in the gap is deteriorated or melted.

Accordingly, the surface sticking phenomenon of the deteriorated and molten incineration ash becomes more severe, and as the process of injecting the incineration ash into the melting furnace proceeds, the reciprocating speed of the ramp feeder is gradually lowered, and thus cannot be moved.

In addition, the ram feeder has a problem that the body of the ram feeder enters into the melting furnace and is directly exposed to high temperature, causing damage by the high temperature to the ram feeder.

In addition, when the incinerator is melted from the incinerator and supplied to the melting furnace through a charging device, the incinerator moves to the melting furnace in a quantitative and on-time manner through the melting furnace inlet in the charging device, which remains around the incinerator inlet and on the surface of the lamp feeder. It is a problem that the incineration material is melted and solidified due to high heat in the melting furnace, thereby preventing the reciprocating motion of the ram feeder, thereby preventing normal operation.

An object of the present invention is to solve the above problems, and when the incineration ash is put into the melting furnace, the incineration ash remaining around the incineration ash inlet and on the surface of the lamp feeder is melted and fixed by high heat in the melting furnace so as not to occur. It is to provide an incineration ash charging apparatus and a charging unit in the apparatus.

It is another object of the present invention to provide an incineration material charging device and a charging unit in the device so that damage caused by high temperature does not occur even if the ramp feeder in the charging device enters the melting furnace when the incineration material is introduced.

It is still another object of the present invention to provide an incinerator charging apparatus and a charging unit in the apparatus for allowing the incineration ash to be continuously fed in a quantitative and on-time sequence when the incineration ash is introduced into the melting furnace. have.

In order to achieve the above objects, according to the present invention, a bottom ash collection unit for sorting and drying the bottom ash generated in the incinerator, a fly ash collecting unit for collecting fly ash from the incinerator through a compressed air transfer method, the bottom ash collecting unit and the fly ash collection A mixing unit for mixing the bottom ash and fly ash collected in the unit and a charging unit for injecting the incineration material mixed in the mixing unit into the melting furnace through the piston reciprocating motion of the ramp feeder, the charging unit has a lower end of the A photo scraper is attached to one surface of the ramp feeder, and the incinerator charging apparatus is characterized in that the mixed incinerator is introduced into the melting furnace while removing the incinerator remaining in the incinerator ash inlet.

The flooring collecting unit is a vibration screen for selecting only the flooring material of a predetermined length or less by using a vibration, a dryer for heating after drying by passing steam to the flooring material selected from the vibration screen, the flooring material for storing the flooring dried in the dryer Hopper, the weight of the flooring material supplied from the flooring hopper is measured using a load cell, and when the predetermined weight includes a flooring metering hopper to supply to the mixing unit.

Here, the preset length may be 50mm.

A first magnetic feeder is installed between the vibrating screen and the dryer, and supplies the flooring material selected by the vibrating screen to the dryer by a predetermined amount.

A conveyor is provided between the dryer and the flooring hopper, and supplies the flooring material dried in the dryer to the flooring hopper by a predetermined amount.

A second magnetic feeder is installed at the bottom of the flooring hopper, and supplies the flooring material stored in the flooring hopper to the flooring metering hopper by quantity.

The fly ash collecting unit measures fly ash hopper storing fly ash conveyed from the incinerator through a compressed air transfer method, and the weight of fly ash supplied from the fly ash hopper using a load cell, and when supplied to the mixing unit when a predetermined weight is reached. It includes a fly ash metering hopper.

A rotary valve is installed at the bottom of the fly ash hopper, and supplies fly ash stored in the fly ash hopper to the fly ash metering hopper.

In addition, according to the present invention, in the charging unit for charging the incineration ash into the melting furnace, the ram feeder housing installed between the lower portion of the mixing unit and the melting furnace inlet, the inside of the lamp feeder housing, the inside of the lamp feeder housing Ram feeder for charging the incineration material into the melting furnace through a piston reciprocating motion, the lower surface and the upper surface is in contact with the ram feeder housing, one side is attached to one surface of the ram feeder, the lower end of the other side is a certain angle A charging unit in an incineration material charging device comprising a hydraulic cylinder having an inclined scraper and a hydraulic cylinder extending at the end of the other side of the ram feeder to allow the ram feeder to reciprocate the piston when charging the incineration material into the melting furnace. Is provided.

The lamp feeder and the lamp feeder housing employs a cooling water circulation jacket for cooling against high temperatures.

The scraper is attached to the scraper using a removable bolt is provided with an ash mounting bracket at a predetermined interval.

The scraper removes the incineration ash remaining on the floor while causing the friction with the bottom surface of the incineration ash inlet when the ramp feeder injects the incineration ash into the melting furnace through the piston reciprocating motion.

As described above, according to the present invention, when the charging device inputs the incineration ash into the melting furnace through a scraper attached to the ramp feeder of the charging apparatus, the incineration ash remaining around the incineration ash inlet and on the surface of the feeder is melted and fixed by high heat in the melting furnace. There is an effect that the phenomenon of solidification does not occur.

In addition, even if the lamp feeder in the charging device enters the melting furnace during incineration ash input, there is an effect that the damage caused by the high temperature does not occur.

In addition, when the incineration ash is introduced into the melting furnace, the incineration ash is continuously quantitatively and on time so that the melting process may be uniformly performed in the melting furnace.

1 is a view schematically showing the configuration of an incineration ash charging apparatus according to the present invention.
2 shows the structure of the charging unit shown in FIG. 1;
3A and 3B show the scraper shown in FIG.

The foregoing and other objects, features, and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

1 is a view schematically showing the configuration of an incineration ash charging apparatus according to the present invention.

Referring to Figure 1, the incinerator charging apparatus is a bottom ash collection unit 100 for sorting and drying the bottom ash generated in the incinerator, fly ash collection unit 200 for collecting fly ash from the incinerator through a compressed air transfer method, the bottom ash collection Mixing unit 300 for mixing the bottom ash and fly ash collected in the unit 100 and the fly ash collection unit 200, the incineration ash mixed in the mixing unit 300 through the reciprocating motion of the ramp feeder melting furnace 500 It comprises a charging unit 400 for putting in.

The flooring collecting unit 100 is a vibration screen 106 that selects only flooring materials having a predetermined length or less using vibration, and a dryer 110 that is heated by passing steam through the flooring material selected by the vibration screen 106 and then dried. ), The flooring hopper 114 for storing the flooring dried in the dryer 110, and measures the weight of the flooring material supplied from the flooring hopper 114 and when the weight reaches a certain weight to the mixing unit 300 A flooring metering hopper 118 for supplying.

The vibrating screen 106, for example, selects flooring material corresponding to 30-100 mm, where the flooring material of 50 mm or less is selected.

In this case, a first magnetic feeder 108 is installed between the vibrating screen 106 and the dryer 110, and the first magnetic feeder 108 selects the flooring material selected from the vibrating screen 106 by a predetermined amount. Supply to the dryer (110).

In addition, a conveyor (112) is provided between the dryer (110) and the flooring hopper (114), and the conveyor (112) contains the flooring material dried in the dryer (110) in a bucket by a predetermined amount of the flooring hopper. To 114.

In addition, a second magnetic feeder 116 is installed at the bottom of the flooring hopper 114, the second magnetic feeder 116 by vibrating to measure the flooring material stored in the flooring hopper 114 by vibration It feeds into the hopper 118.

The flooring metering hopper 118 measures the weight of the flooring material using a load cell and stores the weight of the flooring material until the weight reaches a predetermined weight. When the flooring metering hopper reaches the appropriate weight, the bottom damper is opened to open the mixing unit ( 300).

The fly ash collection unit 200 measures the weight of fly ash hopper 202 for storing fly ash conveyed from the incinerator through a compressed air transfer method, and the fly ash supplied from the fly ash hopper 202, and the weight of the fly ash to a predetermined weight. A fly ash metering hopper 206 is fed to the mixing unit 206 when it is reached.

Here, a rotary valve 204 is installed below the fly ash hopper 202, and supplies the fly ash stored in the fly ash hopper 202 to the fly ash metering hopper 206 through the rotary valve 204. .

The charging unit 400 is a scraper (scraper) is inclined at a predetermined angle at the lower end is attached to one side of the ramp feeder, and injects the mixed incineration ash into the melting furnace 500 while removing the incineration ash remaining in the incineration ash inlet. A detailed description of the charging unit 400 will be made with reference to FIG. 2.

Looking at the operation of the incinerator charging apparatus configured as described above, the bottom ash generated in the incinerator after incineration is transferred to the storage 102 and stored. If necessary, a knuckle crane (104) is used to transfer the flooring material in the bunker to a vibrating screen (106).

The vibrating screen 106 screens the flooring material having a predetermined length or less (for example, 50 mm or less) by using vibration, and the first magnetic feeder 108 separates the selected flooring material by a predetermined amount by the dryer 110. ) To carry out the drying work. Here, the dryer 110 may be a steam tube dryer.

The dryer 110 uses a steam to dry the flooring. More specifically, the dryer 110 installs a steam tube in a dryer shell and heats the flooring by passing steam through the steam. do.

* The dry flooring is completed by a certain amount in the bucket (bucket) by the conveyor 112 is transferred to the flooring hopper 114 installed at the top of the charging device is stored.

The bottom of the bottom hopper 114 has a discharge port is provided with a second magnetic feeder 116, the second magnetic feeder 116 by vibrating the flooring by a metering hopper 118 Supply.

The flooring metering hopper 118 is stored until a certain weight by using a load cell (load cell) and when the appropriate amount is reached by opening the lower damper to transfer the flooring to the mixing unit 300.

In addition, the fly ash stored in the fly ash storage hopper (not shown) in the incinerator is transferred to the fly ash hopper 202 in the upper part of the melting furnace 500 by using a hydraulic conveying system (not shown). The fly ash hopper 202 has a discharge port and is supplied to the fly ash metering hopper 206 through a rotary valve 204.

As in the case of the flooring material, the fly ash metering hopper 206 is stored until it reaches a predetermined weight using a load cell, and when the appropriate amount is reached, the lower damper is opened to transfer the fly ash to the mixing unit 300.

The mixing unit 300 operates a ribbon mixer to mix the fly ash and the bottom ash supplied from the bottom ash collecting unit and the fly ash collecting unit, and then inputs it into the melting furnace 500 using the charging unit 400. do.

FIG. 2 shows the structure of the charging unit shown in FIG. 1, and FIGS. 3A and 3B are side and front views of the scraper shown in FIG. 2.

Referring to FIG. 2, the charging unit 400 includes a ram feeder housing 410 installed between a lower portion of the mixing unit 300 and an inlet of the melting furnace 500, and a lamp feeder 420 mounted inside the lamp feeder housing 410. ), A scraper 430 attached to one surface of the ram feeder 420, and the hydraulic cylinder 440 installed to allow the ram feeder 420 to reciprocate the piston.

The ram feeder 420 charges the incineration ash into the melting furnace 500 through a piston reciprocating motion inside the ram feeder housing 410.

The scraper 430 has a lower surface and an upper surface in contact with the ram feeder housing 410, and one side is attached to one surface of the ram feeder 420, and the lower end of the other side is inclined at a predetermined angle.

The scraper 430 is installed to completely remove the incineration ash remaining on the floor when the ramp feeder 420 is injected into the melting furnace 500 through the piston reciprocating motion. Therefore, a sharp portion such as a blade at the lower end of the scraper 430 is pushed while causing friction with the bottom surface of the incinerator ash when the ramp feeder 420 reciprocates to inject the incinerator ash into the melting furnace 500. Remove as much ash from the ashes as possible. At this time, since the remaining incineration material may be partially deteriorated or melted and fixed to the bottom surface, the force of the hydraulic cylinder 440 for operating the ram feeder 420 should be applied at least twice the capacity.

Referring to FIG. 3A of the scraper 430 as described above, the scraper 430 is inclined at a predetermined angle (for example, 45 ^o ) to completely remove the incineration ash remaining on the floor. The bracket 432 shown in FIG. 3B is attached to the photo portion.

Referring to FIG. 3B, the scraper 430 is provided with an ash ash attaching bracket 432 at regular intervals, and a detachable bolt 434 is attached to the scraper 430.

That is, in order to smoothly remove the incineration material attached to the ram feeder 420, the incineration ash attached to the bracket 432 is added to the upper portion of the scraper 430 installed on the one side of the ram feeder 430 by using the detachable bolt 434. Remove

By installing a predetermined number of incineration ash attaching brackets 432 for thermal insulation at predetermined intervals on the scraper 430, the thermal insulation effect of the scraper 430 is increased.

Referring back to FIG. 2, the hydraulic cylinder 440 extends at the end of the other surface of the ram feeder 420 so that the ram feeder 420 reciprocates when the incinerator is charged into the melting furnace 500. The end is fixed in position.

The hydraulic cylinder 440 allows the ram feeder 420 to reciprocate when the incinerator is injected into the melting furnace 500. At this time, since the ramp feeder 420 enters the melting furnace 500 of the high temperature according to the piston reciprocating motion, the lamp feeder 420 and the lamp feeder housing 410 can be cooled by water for durability of the lamp feeder 420. Install a water cooling jacket. That is, the coolant circulating jacket is employed to cool the ramp feeder 420 and the ramp feeder housing 410.

The charging device as described above can continuously supply the incineration ash in the smelter in a quantitative and timely manner, and thus the melting process in the smelting furnace can be uniformly performed to perform normal operation.

In addition, in the case of applying the above charging device in the molten processing equipment to process the incineration ash 800kg / hr, the incineration ash input speed by the ramp feeder 50 ~ 800kg / hr, the ramp feeder injecting the incineration ash 2 ~ 30mm / sec equipment It is best to drive it.

Thus, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: flooring collection unit 102: storage
104: knuckle crane 106: vibrating screen
108, 116: micro feeder 110: dryer
112: conveyor 114: flooring hopper
118: floor ash metering hopper 200: fly ash collection unit
202: fly ash hopper 204: rotary valve
206: fly ash metering hopper 300: mixing unit
400: charging unit 410: ram feeder housing
420: lamp feeder 430: scraper
440: hydraulic cylinder 432: bracket
434: removable bolt 500: melting furnace

Claims (12)

A floor ash collecting unit for collecting floor ash generated in an incinerator;
Fly ash collecting unit for collecting fly ash from the incinerator through a compressed air transfer method;
A mixing unit mixing the flooring material and the fly ash collected in the flooring collecting unit and the fly ash collecting unit; And
And a charging unit for introducing the incineration material mixed in the mixing unit into the melting furnace through a piston reciprocating motion of a ramp feeder.
The charging unit,
A scraper attached to one surface of the ramp feeder and having a lower end inclined at an angle; And
A bracket mounted over the inclined portion of the scraper,
The bracket,
An incinerator charging apparatus, characterized in that it is disposed on the inclined portion at regular intervals, the bracket for attaching ash to increase the thermal insulation effect of the scraper (ash).
The method of claim 1,
The flooring collecting unit,
A vibration screen for selecting flooring having a predetermined length or less by using vibration;
A dryer which is heated by passing steam through the flooring material selected by the vibrating screen and then dried;
A flooring hopper for storing the flooring dried in the dryer; and
And a bottom ash metering hopper which measures the weight of the bottom ash supplied from the bottom ash hopper using a load cell and supplies the mixing unit to the mixing unit when a predetermined weight is reached.
The method of claim 2,
The fly ash collection unit,
A fly ash hopper for storing fly ash transported from the incinerator through a compressed air transfer method; And
And a fly ash metering hopper for measuring the weight of the fly ash supplied from the fly ash hopper using a load cell and supplying it to the mixing unit when a certain weight is reached.
The method of claim 2,
A first magnetic feeder is installed between the vibrating screen and the dryer, and the incineration material charging device, characterized in that for supplying a predetermined amount of flooring material selected by the vibrating screen to the dryer.
The method of claim 2,
The conveyor is provided between the dryer and the flooring hopper, incinerator charging apparatus, characterized in that for supplying the flooring material dried in the dryer by a predetermined amount to the flooring hopper.
The method of claim 2,
A second magnetic feeder is installed under the flooring hopper, and the incinerator charging apparatus, characterized in that for supplying the flooring material stored in the flooring hopper to the flooring metering hopper by quantity.
The method of claim 1,
The fly ash collection unit,
A fly ash hopper for storing fly ash transported from the incinerator through a compressed air transfer method;
And a fly ash metering hopper for measuring the weight of the fly ash supplied from the fly ash hopper using a load cell and supplying it to the mixing unit when a predetermined weight is reached.
The method of claim 7, wherein
The rotary valve is installed in the lower portion of the fly ash hopper, incinerator charging apparatus characterized in that for supplying the fly ash stored in the fly ash hopper quantitatively to the fly ash metering hopper.
In the charging unit for charging the incineration ash into the furnace,
A lamp feeder housing disposed between a lower portion of a mixing unit and the inlet of the melting furnace;
A lamp feeder mounted inside the lamp feeder housing and charging the incineration material into the melting furnace through a piston reciprocating motion inside the lamp feeder housing;
A scraper having a lower surface and an upper surface in contact with the ram feeder housing, one side of which is attached to one surface of the ram feeder, and the lower end of the other side inclined at an angle; and
And a hydraulic cylinder extending to an end of the other side of the ramp feeder so that the ram feeder reciprocates when the incinerator is charged into the melting furnace.
The scraper is
A bracket mounted over the inclined portion at an angle,
The bracket,
A charging unit in an incineration material charging device, characterized in that it is disposed on the inclined portion at regular intervals, the bracket for attaching ash to increase the thermal insulation effect of the scraper (ash).
10. The method of claim 9,
And the lamp feeder and the lamp feeder housing are cooled by employing a coolant circulation jacket for durability against high temperatures.
10. The method of claim 9,
10. The method of claim 9,
The scraper is a charging unit in the incinerator charging apparatus, characterized in that the removable bracket and the ash attachment bracket (ash) through the removable bolt.
10. The method of claim 9,
The scraper is a charging unit in the incinerator charging unit, characterized in that when the ramp feeder injects the incineration ash into the melting furnace through the piston reciprocating motion to remove the incineration ash remaining on the bottom while causing friction with the bottom surface of the incineration ash inlet.

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