CN112284836A - Plasma tail gas sampling pretreatment system - Google Patents
Plasma tail gas sampling pretreatment system Download PDFInfo
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- CN112284836A CN112284836A CN202011124558.2A CN202011124558A CN112284836A CN 112284836 A CN112284836 A CN 112284836A CN 202011124558 A CN202011124558 A CN 202011124558A CN 112284836 A CN112284836 A CN 112284836A
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- 238000005070 sampling Methods 0.000 title claims abstract description 85
- 239000000498 cooling water Substances 0.000 claims abstract description 28
- 238000010790 dilution Methods 0.000 claims abstract description 18
- 239000012895 dilution Substances 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 17
- 239000000779 smoke Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000007865 diluting Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000012494 Quartz wool Substances 0.000 claims description 4
- -1 connecting line Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 39
- 238000000034 method Methods 0.000 abstract description 18
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 5
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract description 5
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 239000010881 fly ash Substances 0.000 description 6
- 239000004071 soot Substances 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
- G01N2001/2261—Sampling from a flowing stream of gas in a stack or chimney preventing condensation (heating lines)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a plasma tail gas sampling pretreatment system which comprises a sampling probe, a connecting pipeline, a smoke dust filter, a sampling pipe, a quantitative dilution device and a ball valve, wherein the sampling probe is provided with a water cooling device, the outlet end of the sampling probe is connected with one end of the connecting pipeline, the other end of the connecting pipeline is connected with the air inlet of the smoke dust filter, the air outlet of the smoke dust filter is connected with one end of the sampling pipe, the quantitative dilution device is sequentially arranged on the sampling pipe, and the ball valve is arranged on the sampling pipe. The system can be normally used in a plasma melting furnace and a high-temperature flue, the temperature of a cooling water outlet is kept at about 120 ℃, so that sulfur dioxide and hydrogen chloride gas are not condensed, and meanwhile, the system can be normally used under the working conditions of high dust and high concentration, so that the situation that smoke dust blocks a sampling pipeline in the sampling process is avoided, and the purpose of continuous sampling is achieved.
Description
Technical Field
The invention relates to a tail gas sampling pretreatment system, in particular to a plasma tail gas sampling pretreatment system, and belongs to the field of tail gas sampling.
Background
A large amount of fly ash can be generated in the incineration process of household garbage and solid hazardous waste, wherein the main components are chloride, and pollutants such as dioxin, heavy metal and the like with high concentration are contained, the toxicity of the pollutants has certain threat to the environment, and the pollutants belong to hazardous waste. At present, the traditional methods for treating the fly ash comprise solidification/stabilization, chemical treatment, acid extraction technology, landfill method and the like, and the plasma high-temperature melting treatment technology can thoroughly destroy organic pollutants such as dioxin, furan and the like in the fly ash and change heavy metals in the fly ash into molten slag for effective utilization. The concentrations of heavy metals, CO, HCl, SO2 and the like in tail gas generated in the fly ash melting process are high. The concentration condition of the tail gas needs to be monitored in real time, the process is subjected to pre-control, the concentration condition of the tail gas treatment process is fed back in time, and the operation cost is reduced. The sampling monitoring device on the market at present has lower range and can not be suitable for severe working conditions, such as high temperature, high dust and high concentration tail gas.
In the operation process of the traditional tail gas treatment process, the tail gas treatment condition is monitored through the concentration of tail gas emission, the concentration of the tail gas changes in real time, and only the tail end emission concentration is used for judging that the treatment agent in the middle process is excessively wasted and the treatment does not reach the standard, so that the feedback delay is caused. The tail gas monitoring is carried out in the plasma furnace or the high-temperature flue, the concentration condition of the tail gas can be fed back in time, the addition amount of the medicament in the tail gas treatment process is guided, and the condition of excessive medicament or delayed feedback is avoided.
Disclosure of Invention
The invention aims to provide a plasma tail gas sampling pretreatment system, which realizes tail gas monitoring in a plasma furnace or a high-temperature flue.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a plasma tail gas sampling pretreatment system is characterized in that: contain sampling probe, connecting line, smoke and dust filter, sampling tube, quantitative diluting device and ball valve, sampling probe is provided with water cooling plant and sampling probe's exit end is connected with connecting line's one end, and connecting line's the other end is connected with smoke and dust filter's air inlet, and smoke and dust filter's gas outlet is connected with the one end of sampling tube, and quantitative diluting device sets gradually on the sampling tube, and the ball valve setting is on the sampling tube.
Furthermore, the sampling probe comprises a water cooling device and a connector, the water cooling device comprises an inner pipe, a middle pipe and an outer pipe, the middle pipe is sleeved outside the inner pipe, the middle pipe and the inner pipe are coaxially arranged, one end part of the middle pipe and one end part of the inner pipe are mutually sealed and connected, an internal cooling water flow passage is formed between the inner wall of the middle pipe and the outer wall of the inner pipe, the outer pipe is sleeved outside the middle pipe, the outer pipe and the middle pipe are coaxially arranged, one end part of the outer pipe and the other end part of the inner pipe are mutually sealed and connected, an external cooling water flow passage is formed between the inner wall of the outer pipe and the outer wall of the middle pipe, a gap is reserved between the other end part of the middle pipe and the connection part of the outer pipe and the inner pipe to enable the internal cooling water flow passage, the outer side of one end of the middle pipe is provided with a cooling water outlet which is communicated with an internal cooling water flow channel, and one end of the connector is fixedly connected with the connecting part of the inner pipe and one end of the middle pipe and is communicated with the inner pipe.
Further, a temperature sensor is arranged on the side surface of the cooling water outlet and used for monitoring the temperature of the cooling water at the position of the cooling water outlet in real time.
Furthermore, the smoke filter comprises a filter cylinder, a cover plate and a filter medium, wherein the cover plate is fixed at the upper end of the filter cylinder, an air inlet is formed in the upper side of the cover plate, an air outlet is formed in the lower end of the filter cylinder, and the filter medium is arranged in the accommodating cavity of the filter cylinder.
Further, an air outlet at the lower end of the filter cylinder is fixedly connected with one end of the sampling tube through a pipeline connector.
Furthermore, a box door capable of being opened and closed is arranged on the side surface of the filter cylinder body.
Further, the filter medium is made of quartz wool.
Further, the air inlet contains intake pipe and panel, and the intake pipe is fixed in the middle of the panel, and open around the panel have with the screw that the filter cylinder body apron matches, the panel passes through the bolt locking to be fixed on the apron.
Further, the quantitative dilution device comprises a dilution gas pipeline, a manual ball valve and a rotor flow meter, one end of the dilution gas pipeline is fixed on the side face of the sampling tube and communicated with the sampling tube, and the manual ball valve and the rotor flow meter are respectively arranged on the dilution gas pipeline.
Further, a thermometer is arranged on the side surface of the sampling tube.
Compared with the prior art, the invention has the following advantages and effects:
1. the system can be normally used in a plasma melting furnace and a high-temperature flue, the temperature of a cooling water outlet is kept at about 120 ℃, so that sulfur dioxide and hydrogen chloride gas are not condensed, and the system can be normally used under the working conditions of high dust and high concentration, so that the smoke dust is prevented from blocking a sampling pipeline in the sampling process, and the aim of continuous sampling is fulfilled;
2. the invention adopts three layers of water cooling sleeves and an external smoke filter, and can simultaneously solve the problems of high-temperature melting and burning of the sampling tube, high dust blockage and incapability of ensuring the condensation of hydrogen chloride and sulfur dioxide;
3. the tail gas treatment and regulation system is simple in structure, simple and convenient to operate and low in cost, and solves the problem of operation cost waste caused by slow feedback of the tail gas treatment and regulation process in the fly ash fusion operation process in the project operation process.
Drawings
FIG. 1 is a schematic diagram of a plasma tail gas sampling pretreatment system of the present invention.
FIG. 2 is a schematic view of a sampling probe of the present invention.
FIG. 3 is a schematic view of a soot filter of the present invention.
FIG. 4 is a schematic view of a quantitative dilution apparatus of the present invention.
Detailed Description
To elaborate on technical solutions adopted by the present invention to achieve predetermined technical objects, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only partial embodiments of the present invention, not all embodiments, and technical means or technical features in the embodiments of the present invention may be replaced without creative efforts, and the present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
As shown in figure 1, the plasma tail gas sampling pretreatment system comprises a sampling probe 1, a connecting pipeline 2, a soot filter 3, a sampling pipe 4, a quantitative dilution device 5 and a ball valve 6, wherein the sampling probe 1 is provided with a water cooling device, the outlet end of the sampling probe 1 is connected with one end of the connecting pipeline 2, the other end of the connecting pipeline 2 is connected with the air inlet of the soot filter 3, the air outlet of the soot filter 3 is connected with one end of the sampling pipe 4, the quantitative dilution device 5 is sequentially arranged on the sampling pipe 4, and the ball valve 6 is arranged on the sampling pipe 4. The water cooling device on the sampling probe cools the flue gas, and the problem of high temperature resistance of the sampling tube is effectively solved, and meanwhile, the service life of rear-end sampling equipment is ensured. The smoke dust filter prevents the smoke dust from being too much to cause the blockage of the sampling pipeline. The sampling is carried out in the furnace, and the filtering is carried out outside the furnace, so that the operation and maintenance process is more convenient and faster. 6 manual ball valves of stainless steel of ball valve for manual termination sampling process, threaded connection stainless steel sampling tube is passed through to the rear end, can match the sampling equipment of different brands and use, and through later stage reducing design, the sampling tube of different specifications can be connected simultaneously.
As shown in fig. 2, the sampling probe 1 includes a water cooling device and a connector, the water cooling device includes an inner tube 7, a middle tube 8 and an outer tube 9, the middle tube 8 is sleeved outside the inner tube 7 and the middle tube 8 and the inner tube 7 are coaxially arranged, one end of the middle tube 8 and one end of the inner tube 7 are hermetically connected, an internal cooling water channel 10 is formed between the inner wall of the middle tube 8 and the outer wall of the inner tube 7, the outer tube 9 is sleeved outside the middle tube 8 and the outer tube 9 and the middle tube 8 are coaxially arranged, one end of the outer tube 9 and the other end of the inner tube 7 are hermetically connected, an external cooling water channel 11 is formed between the inner wall of the outer tube 9 and the outer wall of the middle tube 8, and a gap is left between the other end of the middle tube 8 and the connecting portion between the outer tube 9 and the inner tube 7, so that the internal cooling water channel 10 and the external cooling water channel 11 are 11, a cooling water outlet 13 is arranged at the outer side of one end of the middle pipe 8, the cooling water outlet 13 is communicated with the internal cooling water flow channel 10, one end of the connector is fixedly connected with the connecting part of the inner pipe 7 and one end of the middle pipe 8, and the connector is communicated with the inner pipe 7. The side of the cooling water outlet 13 is provided with a temperature sensor 14 for monitoring the temperature of the cooling water at the position of the cooling water outlet in real time.
As shown in fig. 3, the soot filter includes a filter cylinder 15, a cover plate 16 and a filter medium 17, the cover plate 16 is fixed on the upper end of the filter cylinder 15, the upper side of the cover plate 16 is provided with an air inlet, the lower end of the filter cylinder 15 is provided with an air outlet, and the filter medium 17 is arranged in the cavity of the filter cylinder 15. The air outlet at the lower end of the filter cylinder 15 is fixedly connected with one end of the sampling tube 4 through a pipeline connector 18. The side of the filter cylinder 15 is provided with a door 19 which can be opened and closed. The filter medium 17 is made of quartz wool. The air inlet contains intake pipe 20 and panel 21, and intake pipe 20 is fixed in the middle of panel 21, and panel 21 is opened all around has the screw that matches with filter cylinder body apron 16, and panel 21 passes through bolt locking to be fixed on apron 16. And (3) checking the air tightness of the sectional inspection device before sampling the tail gas every time and replacing quartz wool in the smoke dust filter.
As shown in fig. 4, the quantitative dilution device comprises a dilution gas pipeline 22, a manual ball valve 23 and a rotameter 24, one end of the dilution gas pipeline 22 is fixed on the side surface of the sampling tube 4 and communicated with the sampling tube 4, the manual ball valve 23 and the rotameter 24 are respectively arranged on the dilution gas pipeline 22, the flow is adjusted through the manual ball valve 23, the manual ball valve is opened to introduce dilution gas, and the introduction time is accumulated to achieve the purpose of quantitatively and previously diluting flue gas. If the tail gas concentration exceeds the measuring range in the sampling detection process, the rotor flow meter is adjusted, the manual ball valve 23 is opened, and the diluent gas is quantitatively introduced. The side surface of the sampling tube 4 is provided with a thermometer 25, the thermometer is arranged at the tail gas outlet at the rear end of the soot filter, and the tail gas sampling temperature is controlled by adjusting the water flow rate of the water cooling device. And (3) observing the temperature in the thermometer in the sampling process, regulating the flow speed of circulating water to be small if the temperature is lower than 120 ℃, and keeping the outlet temperature of cooling water to be about 120 ℃ so that sulfur dioxide and hydrogen chloride gas are not condensed.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A plasma tail gas sampling pretreatment system is characterized in that: contain sampling probe, connecting line, smoke and dust filter, sampling tube, quantitative diluting device and ball valve, sampling probe is provided with water cooling plant and sampling probe's exit end is connected with connecting line's one end, and connecting line's the other end is connected with smoke and dust filter's air inlet, and smoke and dust filter's gas outlet is connected with the one end of sampling tube, and quantitative diluting device sets gradually on the sampling tube, and the ball valve setting is on the sampling tube.
2. A plasma exhaust sampling pretreatment system according to claim 1, characterized in that: the sampling probe comprises a water cooling device and a connector, the water cooling device comprises an inner pipe, a middle pipe and an outer pipe, the middle pipe is sleeved outside the inner pipe and is coaxially arranged with the inner pipe, one end part of the middle pipe and one end part of the inner pipe are mutually sealed and connected, an internal cooling water flow passage is formed between the inner wall of the middle pipe and the outer wall of the inner pipe, the outer pipe is sleeved outside the middle pipe and is coaxially arranged with the middle pipe, one end part of the outer pipe and the other end part of the inner pipe are mutually sealed and connected, an external cooling water flow passage is formed between the inner wall of the outer pipe and the outer wall of the middle pipe, a gap is reserved between the other end part of the middle pipe and the connection part of the outer pipe and the inner pipe to enable the internal cooling water flow passage to be communicated with the external cooling water flow passage, the other end of the outer pipe is sealed and fixed on, one end of the connector is fixedly connected with the connecting part of one end of the inner pipe and one end of the middle pipe, and the connector is communicated with the inner pipe.
3. A plasma exhaust sampling pretreatment system according to claim 2, wherein: and a temperature sensor is arranged on the side surface of the cooling water outlet and used for monitoring the temperature of the cooling water at the position of the cooling water outlet in real time.
4. A plasma exhaust sampling pretreatment system according to claim 1, characterized in that: the smoke filter comprises a filter cylinder, a cover plate and a filter medium, wherein the cover plate is fixed at the upper end of the filter cylinder, an air inlet is formed in the upper side of the cover plate, an air outlet is formed in the lower end of the filter cylinder, and the filter medium is arranged in a containing cavity of the filter cylinder.
5. A plasma exhaust sampling pretreatment system according to claim 4, characterized in that: and the air outlet at the lower end of the filter cylinder body is fixedly connected with one end of the sampling tube through a pipeline connector.
6. A plasma exhaust sampling pretreatment system according to claim 4, characterized in that: the side surface of the filter cylinder body is provided with a box door which can be opened and closed.
7. A plasma exhaust sampling pretreatment system according to claim 4, characterized in that: the filter medium is made of quartz wool.
8. A plasma exhaust sampling pretreatment system according to claim 4, characterized in that: the air inlet contains intake pipe and panel, and the intake pipe is fixed in the middle of the panel, and the panel is opened all around has the screw that matches with filter cylinder body apron, and the panel passes through the bolt locking to be fixed on the apron.
9. A plasma exhaust sampling pretreatment system according to claim 1, characterized in that: the quantitative dilution device comprises a dilution gas pipeline, a manual ball valve and a rotor flow meter, one end of the dilution gas pipeline is fixed on the side face of the sampling tube and communicated with the sampling tube, and the manual ball valve and the rotor flow meter are respectively arranged on the dilution gas pipeline.
10. A plasma exhaust sampling pretreatment system according to claim 1, characterized in that: the thermometer is arranged on the side surface of the sampling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124558.2A CN112284836A (en) | 2020-10-20 | 2020-10-20 | Plasma tail gas sampling pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124558.2A CN112284836A (en) | 2020-10-20 | 2020-10-20 | Plasma tail gas sampling pretreatment system |
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| CN112284836A true CN112284836A (en) | 2021-01-29 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101016A (en) * | 2009-11-18 | 2011-06-22 | 株式会社堀场制作所 | Method for refining dilution air and dilution air refinery |
| CN202582956U (en) * | 2012-04-13 | 2012-12-05 | 中国矿业大学 | High-temperature and high-dust gas and ash content sampling device |
| CN104075913A (en) * | 2014-07-17 | 2014-10-01 | 北京航空航天大学 | Dilution sampling device for PM2.5 discharged by stationary pollution source |
| CN104458352A (en) * | 2014-12-22 | 2015-03-25 | 天津水泥工业设计研究院有限公司 | Large-flow sampling device for industrial flue gas particulate matters |
| CN105709622A (en) * | 2016-01-29 | 2016-06-29 | 北京航空航天大学 | Small ejector and particulate matter dilution acquisition system |
| CN109781474A (en) * | 2018-12-26 | 2019-05-21 | 西安交通大学 | A kind of sampling of high-temperature flue gas particle and measuring device and its application method |
-
2020
- 2020-10-20 CN CN202011124558.2A patent/CN112284836A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101016A (en) * | 2009-11-18 | 2011-06-22 | 株式会社堀场制作所 | Method for refining dilution air and dilution air refinery |
| CN202582956U (en) * | 2012-04-13 | 2012-12-05 | 中国矿业大学 | High-temperature and high-dust gas and ash content sampling device |
| CN104075913A (en) * | 2014-07-17 | 2014-10-01 | 北京航空航天大学 | Dilution sampling device for PM2.5 discharged by stationary pollution source |
| CN104458352A (en) * | 2014-12-22 | 2015-03-25 | 天津水泥工业设计研究院有限公司 | Large-flow sampling device for industrial flue gas particulate matters |
| CN105709622A (en) * | 2016-01-29 | 2016-06-29 | 北京航空航天大学 | Small ejector and particulate matter dilution acquisition system |
| CN109781474A (en) * | 2018-12-26 | 2019-05-21 | 西安交通大学 | A kind of sampling of high-temperature flue gas particle and measuring device and its application method |
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