CN112138516B - Intelligent collecting and purifying system and collecting and purifying method for ectopic thermal desorption organic pollution waste gas - Google Patents
Intelligent collecting and purifying system and collecting and purifying method for ectopic thermal desorption organic pollution waste gas Download PDFInfo
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- CN112138516B CN112138516B CN202010989870.1A CN202010989870A CN112138516B CN 112138516 B CN112138516 B CN 112138516B CN 202010989870 A CN202010989870 A CN 202010989870A CN 112138516 B CN112138516 B CN 112138516B
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- 239000002912 waste gas Substances 0.000 title claims abstract description 91
- 238000003795 desorption Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 126
- 239000000779 smoke Substances 0.000 claims abstract description 107
- 239000007788 liquid Substances 0.000 claims abstract description 75
- 239000007789 gas Substances 0.000 claims abstract description 69
- 238000003860 storage Methods 0.000 claims abstract description 57
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 26
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 64
- 238000009833 condensation Methods 0.000 claims description 35
- 230000005494 condensation Effects 0.000 claims description 35
- 238000000746 purification Methods 0.000 claims description 30
- 238000011066 ex-situ storage Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0006—Coils or serpentines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0015—Plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0036—Multiple-effect condensation; Fractional condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/30—Controlling by gas-analysis apparatus
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- Chemical Kinetics & Catalysis (AREA)
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- Treating Waste Gases (AREA)
Abstract
The system comprises a high Wen Yiwei thermal desorption furnace, a condensing box, a waste liquid collecting box, a waste smoke circulating and purifying collecting box and an intelligent control module which are connected with each other. Organic pollutants are converted into gas state in the high Wen Yiwei thermal desorption furnace from liquid state, enter the condensing box through the exhaust gas inlet pipe and the exhaust gas inlet valve, sequentially pass through the exhaust gas diversion port, the spiral condensing pipe and the exhaust gas gathering port in the condensing box, enter the exhaust gas gathering box through the exhaust gas inlet pipe to be gathered, the waste gas which is not liquefied is further condensed and gathered through the porous condensing plate, finally the residual exhaust gas is conveyed into the exhaust gas circulation purifying box, the residual exhaust gas is identified by the intelligent smoke sensor in the residual exhaust gas temporary storage cavity, and then enters the high Wen Yiwei thermal desorption furnace again for heat treatment, or enters the active carbon storage cavity to be absorbed and gathered, and the whole process is controlled by the intelligent control module.
Description
Technical Field
The invention relates to the technical field of organic pollution waste gas treatment, in particular to an ectopic thermal desorption organic pollution waste gas intelligent collection and purification system.
Background
The current tail gas collection systems are numerous, and the tail gas collection efficiency is also different. The system with high collection efficiency is complex in equipment and not easy to popularize and use, or can generate more secondary pollutants, for example, the tail gas collection by utilizing the water leaching technology can generate a large amount of wastewater, or the intelligent degree is low, and manual operation is needed;
the thermal desorption technology is widely used due to the advantages of high efficiency and thoroughness, and the generated tail gas is easy to cause secondary pollution, so that a tail gas purifying and collecting system is urgently needed. Therefore, developing an intelligent collection and purification system for the organic polluted waste gas by the ectopic thermal desorption is efficient and simple, and is necessary for perfecting the waste gas purification and collection system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an intelligent purification and collection system for ex-situ thermal desorption organic pollution waste gas, which can solve the problems of complex equipment, secondary pollutant generation and low intelligent degree caused by pursuing high-efficiency collection rate.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an ectopic thermal desorption is with organic pollution waste gas intelligence collection clean system and collection purification method, component element includes high Wen Yiwei thermal desorption stove, the cooler bin, waste liquid collecting box, waste smoke circulation purification collecting box and intelligent control module, and component element's specific structure and relation of connection are:
The intelligent air pressure sensor of the high-temperature ectopic thermal desorption furnace is welded at the top of the furnace body and is connected with the intelligent control module, the intelligent air pressure sensor measures the air pressure inside the furnace body in real time and transmits measured information to the intelligent control module in real time, the breather valve is welded at one side of the furnace body and is communicated with the outside, the waste gas outlet is arranged at the top of one side of the furnace body and is connected with the waste gas inlet pipe of the condensing box, and the waste gas furnace body return pipe led out by the waste gas circulation purification collecting box is connected from the bottom waste gas inlet at one side of the furnace body;
The condensing box comprises an exhaust gas inlet pipe, an exhaust gas inlet pipe valve, a condensate water inlet pipe intelligent valve, an exhaust gas diversion port, a spiral condensing pipe and an exhaust gas gathering port, wherein one end of the exhaust gas inlet pipe is connected with an exhaust gas outlet of the high-temperature ectopic thermal desorption furnace, the other end of the exhaust gas inlet pipe is connected with the exhaust gas diversion port through the exhaust gas inlet pipe valve, the exhaust gas diversion port is connected with the spiral condensing pipe, the condensate water inlet pipe is arranged at the top of the condensing outer box, the condensate water inlet pipe is provided with the condensate water inlet pipe valve, the exhaust gas gathering port is arranged at the lower end of the spiral condensing pipe, the exhaust gas enters the condensing box from the exhaust gas inlet pipe through the exhaust gas inlet pipe valve, is dispersed into the spiral condensing pipe through the condensate exhaust gas diversion port, and is discharged into the waste liquid gathering box through the exhaust gas gathering port after condensation;
the waste liquid collecting box comprises a waste liquid inlet pipe, a waste gas inlet pipe, a porous condensing plate condensed water outlet pipe, a condensed water outlet pipe intelligent valve, a check valve, an intelligent humidity sensor and a porous condensing plate condensed water inlet pipe, wherein the waste liquid inlet pipe is connected with a waste gas collecting port of the condensing box, the waste liquid collecting box is received under the waste gas inlet pipe, vertical plates in the porous condensing plate are uniformly welded at intervals at the top of the waste liquid outer box, inclined plates in the porous condensing plate are obliquely welded at right angles at the top of the waste liquid outer box at an angle of 45 degrees, the condensed water outlet pipe is connected with the porous condensing plate, the porous condensing plate condensed water outlet pipe is provided with the condensed water outlet pipe intelligent valve, the intelligent humidity sensor is arranged at the waste gas outlet pipe and is connected with the intelligent control module, the upper part of the waste liquid outer box is provided with the waste gas inlet pipe, the check valve is arranged at one half of the height of one side of the waste liquid collecting box, condensed waste liquid from the condensing box flows into each porous condensing plate through the waste liquid inlet pipe, and condensed water flowing down from each porous condensing plate is discharged through the outlet pipe;
The waste smoke circulating purifying collection box comprises an active carbon storage cavity and a waste smoke temporary storage cavity, wherein the active carbon storage cavity is positioned at the upper part of the waste smoke circulating purifying collection box and comprises a first intelligent vacuum pump, an air outlet pipe and a filter plug, active carbon is filled in the active carbon storage cavity, the air outlet pipe is positioned at the top of the active carbon storage cavity, the first intelligent vacuum pump is arranged on the air outlet pipe and is connected with an intelligent control module, the filter plug is positioned at the joint of the air outlet pipe and the active carbon storage cavity, the waste smoke temporary storage cavity is positioned at the lower part of the waste smoke circulating purifying collection box and comprises a waste smoke filter plate, a first intelligent valve, an intelligent smoke sensor, a waste smoke furnace body return pipe, a second intelligent vacuum pump and a second intelligent valve, the waste smoke temporary storage cavity is connected with a waste smoke inlet pipe, the intelligent smoke sensor is arranged at one side of the waste smoke inlet pipe and is connected with the intelligent control module, and the waste smoke return pipe is connected with the bottom of the waste smoke temporary storage cavity; the residual smoke filter plate and the first intelligent valve are positioned at the top of the residual smoke temporary storage cavity and are also connected with the intelligent control module;
The intelligent control module is a computer provided with an intelligent program, and is connected with an intelligent humidity sensor, an intelligent smoke sensor, a condensate water inlet pipe intelligent valve, a first intelligent valve, a second intelligent valve, a first intelligent vacuum pump and a second intelligent vacuum pump in the collection and purification system through wires.
The furnace body is a vertical type horse boiling furnace.
A plurality of distributed spiral condensing pipes are arranged in the condensing box.
And a porous condensing plate is arranged in the waste liquid collecting box.
The porous condensation plate in the waste liquid collecting box adopts a porous multi-row design.
The invention has the beneficial effects that:
1. this tail gas collection clean system, along general condensation module, collection module and purification module guarantee its equipment is simple, advantage of good installation.
2. The condensing box in the tail gas collecting and purifying system adopts a plurality of small-diameter spiral condensing pipes, so that the contact area between waste gas and condensate is increased, and the condensing efficiency is improved.
3. The porous condensing plate is adopted in the tail gas collecting and purifying system to continuously condense the high-temperature waste gas, and the sprinkling device is not adopted to continuously condense the high-temperature waste gas, so that the generation of secondary pollution waste water is reduced.
4. This tail gas collection clean system does not adopt high temperature heating device in the waste smoke circulation collection purifying box, to not being condensed, the waste gas of collection purifies and collects, but utilizes intelligent control module to carry out the reextraction to the surplus cigarette that concentration exceeded certain threshold and returns high Wen Yiwei thermal desorption stove, continues to purify and collect, has simplified whole system, and the while fully utilizes high Wen Yiwei thermal desorption stove, has improved and has collected the purification rate.
5. This tail gas purification collecting system introduces intelligent humidity transducer, intelligent smoke sensor, intelligent valve and intelligent vacuum pump etc. equipment that degree of automation is high, introduces intelligent control module simultaneously, can realize that a key is opened, just the intelligent dystopy thermal desorption organic pollution waste gas collection clean system who ends.
6. The gas infrared chromatographic test on the off-site thermal desorption direct discharge and the tail gas passing through the tail gas purification and collection system shows that the purification and collection rate can reach more than 90%.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the intelligent collection and purification system for the ex-situ thermal desorption organic pollution waste gas.
Fig. 2 is a schematic diagram of a condensation box structure of the intelligent collection and purification system for the ex-situ thermal desorption organic pollution waste gas.
Fig. 3-1 is a schematic diagram of the front structure of a waste liquid collecting box of the intelligent collecting and purifying system for the ectopic thermal desorption organic pollution waste gas.
Fig. 3-2 is a schematic diagram of the back structure of a waste liquid collecting box of the intelligent collecting and purifying system for the ectopic thermal desorption organic pollution waste gas.
Fig. 4 is a schematic diagram of a porous condensing plate structure of the system for intelligently collecting and purifying the ex-situ thermal desorption organic pollutant waste gas.
Fig. 5 is a schematic diagram of a waste smoke circulation purifying collecting box of the ectopic thermal desorption organic pollution waste gas intelligent collecting and purifying system.
Marked in the figure as: the high-temperature ectopic thermal desorption furnace 100, the intelligent air pressure sensor 101, the breather valve 102, the waste gas outlet 103, the waste gas inlet 104, the condensing tank 200, the waste gas inlet pipe 202, the waste gas inlet pipe valve 203, the condensing tank condensate water inlet pipe 204, the condensate water inlet pipe intelligent valve 205, the waste gas diversion port 206, the spiral condensing pipe 207, the waste gas collecting port 208, the waste liquid collecting tank 300, the collecting tank condensate water inlet pipe 302, the waste liquid inlet 303, the porous condensing plate 305, the condensate water outlet pipe 306, the condensate water outlet pipe intelligent valve 307, the one-way valve 308, the intelligent humidity sensor 309, the waste smoke circulation purifying collecting tank 400, the first intelligent vacuum pump 401, the air outlet pipe 402, the filter plug 403, the activated carbon storage cavity 405, the waste smoke filter 406, the first intelligent valve 407, the waste smoke temporary storage cavity 408, the intelligent smoke sensor 409, the waste smoke furnace body return pipe 410, the second intelligent vacuum pump 411 and the second intelligent valve 412.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and examples.
It should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, or electrically connected; either directly or indirectly via an intermediary. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1 to 5, the system for intelligently purifying and collecting the ectopic thermal desorption organic pollution waste gas comprises a high Wen Yiwei thermal desorption furnace, a condensing box, a waste liquid collecting box, a waste smoke circulating and purifying collecting box and an intelligent control module, and the specific structure and connection relation are as follows:
The intelligent air pressure sensor 101 of the high-temperature ectopic thermal desorption furnace is welded at the top of the furnace body 100 and is connected with the intelligent control module; the breather valve 102 is welded on one side of the furnace body 100, the breather valve 102 is communicated with the outside, and the breather valve 102 can control the air pressure range in the furnace. The exhaust gas outlet 103 is arranged at the top of one side of the furnace body and is connected with an exhaust gas inlet pipe 202 of the condensing box. An exhaust furnace return pipe 410 led out from the exhaust fume circulation and purification collecting box is connected from the bottom exhaust gas inlet 104 on one side of the furnace.
The condensing box 200 comprises an exhaust gas inlet pipe 202, an exhaust gas inlet pipe valve 203, a condensate water inlet pipe 204, a condensate water inlet pipe intelligent valve 205, an exhaust gas diversion port 206, a spiral condensing pipe 207 and an exhaust gas gathering port 208, wherein one end of the exhaust gas inlet pipe 202 is connected with the exhaust gas outlet 103 of the high-temperature ectopic thermal desorption furnace, the other end of the exhaust gas inlet pipe 202 is connected with the exhaust gas diversion port 206 through the exhaust gas inlet pipe valve 203, the exhaust gas diversion port 206 is connected with the spiral condensing pipe 207, the condensate water inlet pipe 204 is arranged at the top of the condensing box 201, the condensate water inlet pipe 204 is provided with the condensate water inlet pipe intelligent valve 205, and the exhaust gas gathering port 208 is arranged at the lower end of the spiral condensing pipe 207. The waste gas enters the condensing box 200 from the waste gas inlet pipe 202 through the waste gas inlet pipe valve 203, is dispersed into the spiral condensing pipe 207 through the condensed waste gas diversion port 206, and is discharged into the waste liquid collecting box 300 through the waste gas collecting port 208 after condensation.
The waste liquid collecting box 300 comprises a waste liquid inlet pipe 303, a waste gas inlet pipe 304, a porous condensation plate 305, a porous condensation plate condensed water outlet pipe 306, a porous condensation plate condensed water outlet pipe intelligent valve 307, a one-way valve 308, an intelligent humidity sensor 309 and a porous condensation plate condensed water inlet pipe 310, wherein the waste liquid inlet pipe 303 is connected with the waste gas collecting port 208 of the condensation box 200, the waste liquid collecting box 300 is received under the waste gas inlet pipe 304, vertical plates in the porous condensation plate 305 are uniformly welded at the top of the waste liquid outer box 301 at intervals, and inclined plates in the porous condensation plate 305 are obliquely welded at right angles at the top of the waste liquid outer box 301 at an angle of 45 degrees. The porous condensation plate condensate outlet pipe 306 is connected with the porous condensation plate 305, the porous condensation plate condensate outlet pipe 306 is provided with a porous condensation plate condensate outlet pipe intelligent valve 307, the porous condensation plate condensate inlet pipe 310 is connected with the porous condensation plate 305, the upper part of the waste liquid collecting box 300 is provided with a residual air inlet pipe 304, and the check valve 308 is arranged at one half of the height of one side of the waste liquid collecting box 300. An intelligent humidity sensor 309 is disposed at the residual air outlet pipe 304 and connected to the intelligent control module, and condensed waste liquid from the condensation tank 200 flows into each porous condensation plate 305 through the waste liquid inlet pipe 303, and condensed water flowing down each porous condensation plate 305 is discharged through the porous condensation plate condensed water outlet pipe 306.
The porous condensation plate 305 is made of stainless steel, and a plurality of tiny through holes A2 are formed in the porous condensation plate 305.
The waste smoke recycling and purifying collecting box 400 comprises an activated carbon storage cavity 405 and a residual smoke temporary storage cavity 408. The active carbon storage cavity 405 is located waste smoke circulation purification collecting box 400 upper portion, and active carbon storage cavity 405 includes first intelligent vacuum pump 401, outlet duct 402 and filter plug 403, and active carbon is filled in the active carbon storage cavity 405, and outlet duct 402 is located active carbon storage cavity 405 top, and first intelligent vacuum pump 401 is installed on outlet duct 402 to be connected with intelligent control module, filter plug 403 is located the junction of outlet duct 402 and active carbon storage cavity 405. The residual smoke temporary storage cavity 408 is positioned at the lower part of the residual smoke circulating and purifying collecting box 400, the residual smoke temporary storage cavity 408 comprises a residual smoke filter plate 406, a first intelligent valve 407, an intelligent smoke sensor 409, a waste smoke furnace body return pipe 410, a second intelligent vacuum pump 411 and a second intelligent valve 412, the residual smoke temporary storage cavity 408 is connected with the residual smoke inlet pipe 304, the intelligent smoke sensor 409 is arranged at one side of the residual smoke inlet pipe 304 and is connected with the intelligent control module, the waste smoke furnace body return pipe 410 is connected with the bottom of the residual smoke temporary storage cavity 408, and the second intelligent valve 412 and the second intelligent vacuum pump 411 are arranged on the waste smoke furnace body return pipe 410 and are connected with the intelligent control module; the residual smoke filter plate 406 and the first intelligent valve 407 are positioned at the top of the residual smoke temporary storage cavity 408 and are also connected with the intelligent control module.
The intelligent control module 500 is a computer provided with an intelligent program, and the intelligent control module 500 is connected with an intelligent humidity sensor 309, an intelligent smoke sensor 409, a condensate water inlet pipe intelligent valve 205, a first intelligent valve 407, a second intelligent valve 412, a first intelligent vacuum pump 401 and a second intelligent vacuum pump 411 in the collection and purification system through electric wires 501, 502, 503 and 504.
The inside of the condensing box 200 is provided with a plurality of distributed spiral condensing pipes 207, which increases the flow path of the waste gas, enlarges the contact area between the waste gas and the condensate, and improves the condensing efficiency of the waste gas.
The waste liquid collecting box 300 is internally provided with a porous condensing plate 305, so that the waste gas from the condensing box is further condensed, organic polluted steam and water vapor in the waste gas can be collected to the maximum extent, and meanwhile, the perforation A2 of the porous condensing plate provides a path for the flow of the waste gas and provides a precondition for the subsequent purification of waste smoke;
The one-way valve 308 is a waste liquid outlet, which not only ensures a certain negative pressure in the waste liquid collecting box, but also realizes automatic discharge of waste liquid;
The intelligent humidity sensor 309 can monitor the humidity change in the space of the waste liquid collecting box in real time, and is also connected with the intelligent control module 500, and transmits the monitored information to the intelligent control module 500, which is a main sensing device for judging whether the thermal desorption process is stopped or not collected by the tail gas intelligent purification system.
The intelligent smoke sensor 409 can monitor the change of the smoke solubility in the residual smoke temporary storage cavity in real time, is also connected with the intelligent control module 500, and transmits the monitored information to the intelligent control module 500, so that the intelligent smoke sensor 409 is a main sensing device for judging whether the residual smoke of the tail gas intelligent collection and purification system is re-pumped to the high Wen Yiwei thermal desorption furnace 100 to be treated again.
The residual smoke filter 406 can isolate residual smoke, and simultaneously exhaust waste gas to the active carbon storage cavity 405 to be connected with the atmosphere into a whole, so that the whole intelligent waste gas purifying and collecting system is in a negative pressure state through the first intelligent vacuum pump 401.
The first intelligent valve 407 is connected with the intelligent control module 500, when the intelligent smoke sensor 409 recognizes that the residual smoke solubility is smaller than a certain threshold value, the intelligent control module 500 will send a command to open the first intelligent valve 407, and simultaneously, close the second intelligent valve 412 and the second intelligent vacuum pump 411 in the waste smoke furnace body return pipe 410, so that the residual smoke in the residual smoke temporary storage cavity 408 enters the active carbon storage cavity 405 as much as possible, and the end of the thermal desorption process is accelerated.
The activated carbon storage chamber 405 can adsorb other harmful gases in the exhaust gas.
The first intelligent vacuum pump 401 can make the whole intelligent waste gas purifying and collecting system be in a negative pressure state, and is connected with the intelligent control module 500 at the same time, when the intelligent humidity sensor 309 recognizes that the humidity of the waste liquid collecting box 300 is lower than a certain threshold value, the first intelligent vacuum pump 401 stops working, and the whole off-site thermal desorption process is ended.
Example 2
The invention relates to a collection and purification method of an intelligent collection and purification system for ectopic thermal desorption organic pollution waste gas, which comprises the following specific operation steps:
1. when organic pollutants, water and other substances in the high Wen Yiwei thermal desorption furnace 100 are evaporated, decomposed and combusted, the pressure inside the furnace body is increased, at this time, the intelligent air pressure sensor 101 monitors the pressure inside the furnace body in real time, and when the air pressure exceeds a certain value, the intelligent control module 500 receives information of the intelligent air pressure sensor 101 and sends out instructions, so that the first intelligent vacuum pump 401 and the second intelligent vacuum pump 411, the condensate water inlet pipe intelligent valve 205, the condensate water outlet pipe intelligent valve 307 and the second intelligent valve 412 in the collecting system are opened.
2. The waste gas is pumped out of the high Wen Yiwei thermal desorption furnace 100, enters the condensing box 200 through the waste gas inlet pipe 202, is split into a plurality of spiral condensing pipes 207 through the waste gas split-flow port 206 and is condensed, condensed water is collected at the waste gas collection port 208 and then is conveyed into the waste liquid collection box 300, and during the period, the condensed water of the waste liquid collection box 300 always enters the condensing box through the condensed water inlet pipe 204 and the condensed water inlet pipe intelligent valve 205, so that the condensation effect is achieved.
3. The waste gas condensed into liquid and waste gas enters the waste liquid collecting box 300 through the waste liquid inlet pipe 303, part of the waste gas condensed into liquid is collected in the waste liquid collecting box 300, and the waste gas which is not condensed passes through the porous condensing plate 305 and finally enters the waste gas temporary storage cavity 408 through the waste gas inlet pipe 304; during this period, the condensed water from the condensation tank 200 enters the porous condensation plate 305 through the condensed water inlet pipe 302 of the porous condensation plate 305, flows out of the porous condensation plate 305 from the condensed water outlet pipe 306 of the porous condensation plate 305, ensures the condensation function of the porous condensation plate 305, monitors the humidity in the waste liquid collecting tank in real time by the intelligent humidity sensor 309, and transmits a signal to the intelligent control module 500, and when the waste liquid reaches a certain capacity, the waste liquid is discharged through the one-way valve 308.
4. When the waste smoke enters the waste smoke temporary storage cavity 408 from the waste gas inlet pipe 304, the intelligent smoke sensor 409 monitors the smoke solubility in the waste smoke temporary storage cavity 408 and transmits monitoring information to the intelligent control module 500 in real time, when the solubility exceeds a certain threshold value, the intelligent control module 500 sends instructions to the second intelligent vacuum pump 411 and the second intelligent valve 412 to enable the second intelligent vacuum pump to operate, the smoke in the waste smoke temporary storage cavity 408 is extracted to enter the high Wen Yiwei thermal desorption furnace 100 for re-high-temperature treatment, then enters the waste smoke temporary storage cavity 408 again through the condensing box 200 and the waste liquid collecting box 300, and is monitored by the intelligent smoke sensor 409, and if the concentration is still higher than a certain threshold value, the steps are continued; if the smoke solubility in the residual smoke temporary storage cavity 408 is lower than a certain threshold value, the intelligent control module 500 sends a command to the second intelligent vacuum pump 411 and the second intelligent valve 412 to stop the operation, and meanwhile, the first intelligent valve 407 is opened to enable the residual smoke to enter the active carbon storage cavity 405 in the full number, and the residual smoke is further adsorbed and purified by the active carbon in the active carbon storage cavity.
5. When the intelligent humidity sensor 309 in the waste liquid collection tank 300 detects that the humidity of the waste liquid collection tank 300 is lower than a certain threshold, the intelligent control module 500 will issue a command to shut down or close the first intelligent vacuum pump 401, the high-temperature ectopic thermal desorption furnace 100, the condensate inlet pipe intelligent valve 205 and the condensate outlet pipe intelligent valve 307 until the whole thermal desorption process is completed.
Claims (6)
1. The utility model provides an dystopy thermal desorption organic pollution waste gas intelligence collection clean system, component includes high Wen Yiwei thermal desorption stove, the condensing-tank, waste liquid collecting box, waste smoke circulation purification collecting box and intelligent control module, its characterized in that, component's concrete structure and relation of connection do:
The intelligent air pressure sensor of the high-temperature ectopic thermal desorption furnace is welded at the top of the furnace body and is connected with the intelligent control module, the intelligent air pressure sensor measures the air pressure inside the furnace body in real time and transmits measured information to the intelligent control module in real time, the breather valve is welded at one side of the furnace body and is communicated with the outside, the waste gas outlet is arranged at the top of one side of the furnace body and is connected with the waste gas inlet pipe of the condensing box, and the waste gas furnace body return pipe led out by the waste gas circulation purification collecting box is connected from the bottom waste gas inlet at one side of the furnace body;
The condensing box comprises an exhaust gas inlet pipe, an exhaust gas inlet pipe valve, a condensed water inlet pipe intelligent valve, an exhaust gas shunt port, a spiral condensing pipe and an exhaust gas gathering port, wherein one end of the exhaust gas inlet pipe is connected with an exhaust gas outlet of the high-temperature ectopic thermal desorption furnace, the other end of the exhaust gas inlet pipe is connected with the exhaust gas shunt port through the exhaust gas inlet pipe valve, the exhaust gas shunt port is connected with the spiral condensing pipe, the condensed water inlet pipe is arranged at the top of the condensing outer box, the condensed water inlet pipe is provided with the condensed water inlet pipe valve, and the exhaust gas gathering port is arranged at the lower end of the spiral condensing pipe;
The waste liquid collecting box comprises a waste liquid inlet pipe, a waste gas inlet pipe, a porous condensing plate condensed water outlet pipe, a condensed water outlet pipe intelligent valve, a one-way valve, an intelligent humidity sensor and a porous condensing plate condensed water inlet pipe, wherein the waste liquid inlet pipe is connected with a waste gas collecting port of the condensing box, the waste liquid collecting box is received under the waste gas inlet pipe, vertical plates in the porous condensing plate are uniformly welded at intervals at the top of the waste liquid collecting box, inclined plates in the porous condensing plate are obliquely welded at right angles at the top of the waste liquid outer box at an angle of 45 degrees, the condensed water outlet pipe is connected with the porous condensing plate, the porous condensing plate condensed water outlet pipe is provided with the condensed water outlet pipe intelligent valve, the porous condensing plate condensed water inlet pipe is connected with the porous condensing plate, the intelligent humidity sensor is arranged at the waste gas outlet pipe and is connected with the intelligent control module, the waste gas inlet pipe is arranged at the upper part of the waste liquid collecting box, the one-way valve is arranged at one side of the waste liquid collecting box, and the intelligent humidity sensor is arranged in the waste liquid collecting box;
The waste smoke circulating purifying collection box comprises an active carbon storage cavity and a waste smoke temporary storage cavity, wherein the active carbon storage cavity is positioned at the upper part of the waste smoke circulating purifying collection box and comprises an intelligent vacuum pump, an air outlet pipe and a filter plug, the active carbon storage cavity is filled with active carbon, the air outlet pipe is positioned at the top of the active carbon storage cavity, the first intelligent vacuum pump is arranged on the air outlet pipe and is connected with the intelligent control module, the filter plug is positioned at the joint of the air outlet pipe and the active carbon storage cavity, the waste smoke temporary storage cavity is positioned at the lower part of the waste smoke circulating purifying collection box and comprises a waste smoke filter plate, a first intelligent valve, an intelligent smoke sensor, a waste smoke body return pipe, a second intelligent vacuum pump and a second intelligent valve, the waste smoke temporary storage cavity is connected with a waste smoke inlet pipe, the intelligent smoke sensor is arranged at one side of the waste smoke inlet pipe and is connected with the intelligent control module, and the waste smoke body return pipe is connected with the bottom of the waste smoke temporary storage cavity; the residual smoke filter plate and the first intelligent valve are positioned at the top of the residual smoke temporary storage cavity and are also connected with the intelligent control module;
The intelligent control module is a computer provided with an intelligent program, and is connected with an intelligent humidity sensor, an intelligent smoke sensor, a condensate water inlet pipe intelligent valve, a first intelligent valve, a second intelligent valve, a first intelligent vacuum pump and a second intelligent vacuum pump in the collection and purification system through wires.
2. The intelligent collection and purification system for ex situ thermal desorption organic contaminated waste gas according to claim 1, wherein the furnace body is a vertical type horse boiling furnace.
3. The intelligent collection and purification system for the ex situ thermal desorption organic contaminated waste gas according to claim 1, wherein a plurality of distributed spiral condensing pipes are arranged in the condensing box.
4. The intelligent collection and purification system for the ex situ thermal desorption organic contaminated waste gas according to claim 1, wherein a porous condensation plate is arranged in the waste liquid collection box.
5. The intelligent collection and purification system for the ex-situ thermal desorption organic contaminated waste gas according to claim 1, wherein a porous condensation plate in the waste liquid collection box adopts a porous multi-row design.
6. The method for collecting and purifying the ectopic thermal desorption organic pollution waste gas intelligent collecting and purifying system as claimed in claim 1, which is characterized by comprising the following specific operation steps:
(1) When organic pollutants, water and other substances in the high Wen Yiwei thermal desorption furnace are evaporated, decomposed and combusted, the pressure in the furnace body is increased, at the moment, the intelligent air pressure sensor monitors the pressure in the furnace body in real time, and when the air pressure exceeds a certain value, the intelligent control module receives information of the intelligent air pressure sensor and sends out an instruction, so that a first intelligent vacuum pump and a second intelligent vacuum pump, a condensate water inlet pipe intelligent valve, a condensate water outlet pipe intelligent valve and a second intelligent valve in the collecting system are opened;
(2) The waste gas is pumped out from the high Wen Yiwei thermal desorption furnace, enters the condensing box through the waste gas inlet pipe, is shunted to the spiral condensing pipe through the waste gas shunt port and is condensed, condensed water is collected at the waste gas collecting port and then is conveyed to the waste liquid collecting box, and the condensed water of the condensing box always enters the condensing box through the condensed water inlet pipe and the condensed water inlet pipe intelligent valve to play a role of condensation;
(3) The waste gas condensed into liquid and waste gas enters the waste liquid collecting box through the waste liquid inlet pipe, part of the waste gas condensed into liquid is collected in the waste liquid collecting box, and waste smoke which is not condensed passes through the porous condensing plate and finally enters the waste smoke temporary storage cavity through the waste gas inlet pipe; during the period, condensed water from the condensing box enters the porous condensing plate through a condensed water inlet pipe of the porous condensing plate and flows out from a condensed water outlet pipe of the porous condensing plate, and meanwhile, the intelligent humidity sensor is also used for monitoring the humidity in the waste liquid collecting box in real time and transmitting signals to the intelligent control module, and when the waste liquid reaches a certain capacity, the waste liquid is discharged through the one-way valve;
(4) The method comprises the steps that waste smoke enters a waste smoke temporary storage cavity from a waste gas inlet pipe, at the moment, an intelligent smoke sensor monitors the smoke solubility in the waste smoke temporary storage cavity and transmits monitoring information to an intelligent control module in real time, when the solubility exceeds a certain threshold value, the intelligent control module sends instructions to a second intelligent vacuum pump and a second intelligent valve to enable the second intelligent vacuum pump and the second intelligent valve to operate, smoke in the waste smoke temporary storage cavity is extracted to enter a high Wen Yiwei thermal desorption furnace to be subjected to high-temperature treatment again, then enters the waste smoke temporary storage cavity again through a condensing box and a waste liquid collecting box and is monitored by an intelligent smoke sensor, if the concentration is still higher than a certain threshold value, the steps are continued, and if the smoke solubility in the waste smoke temporary storage cavity is lower than a certain threshold value, the intelligent control module sends instructions to the second intelligent vacuum pump and the second intelligent valve to enable the second intelligent vacuum pump and the second intelligent valve to stop operating, and meanwhile, the first intelligent valve is opened to enable the waste smoke to enter the active carbon storage cavity to be further adsorbed and purified by active carbon in the waste smoke temporary storage cavity;
(5) When the intelligent humidity sensor in the waste liquid collecting box monitors that the humidity of the waste liquid collecting box is lower than a certain threshold value, the intelligent control module can send an instruction, shut down or close the first intelligent vacuum pump, and the high Wen Yiwei thermal desorption furnace, the condensate water inlet pipe intelligent valve and the condensate water outlet pipe intelligent valve are closed, so that the whole thermal desorption process is finished.
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