CN114307507A - Organic waste gas treatment system for vacuum calciner and process - Google Patents
Organic waste gas treatment system for vacuum calciner and process Download PDFInfo
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- CN114307507A CN114307507A CN202210041872.7A CN202210041872A CN114307507A CN 114307507 A CN114307507 A CN 114307507A CN 202210041872 A CN202210041872 A CN 202210041872A CN 114307507 A CN114307507 A CN 114307507A
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- heat exchanger
- waste gas
- washing tower
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- 239000007789 gas Substances 0.000 title claims abstract description 36
- 239000010815 organic waste Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 238000007084 catalytic combustion reaction Methods 0.000 claims abstract description 56
- 238000005406 washing Methods 0.000 claims abstract description 40
- 239000002912 waste gas Substances 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims abstract description 4
- 238000012856 packing Methods 0.000 claims description 30
- 238000005485 electric heating Methods 0.000 claims description 14
- 230000003197 catalytic effect Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 239000011490 mineral wool Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 238000005201 scrubbing Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- MVWVFYHBGMAFLY-UHFFFAOYSA-N ziprasidone Chemical compound C1=CC=C2C(N3CCN(CC3)CCC3=CC=4CC(=O)NC=4C=C3Cl)=NSC2=C1 MVWVFYHBGMAFLY-UHFFFAOYSA-N 0.000 claims description 4
- 229960000607 ziprasidone Drugs 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 2
- 238000005516 engineering process Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses an organic waste gas treatment system for a vacuum calciner and a process, and relates to the technical field of waste gas treatment. The invention comprises a washing tower, a dry filter, a heat exchanger, an induced draft fan, a catalytic combustion furnace and a discharge cylinder which are sequentially connected, wherein an air outlet of the dry filter and an air inlet of the induced draft fan are connected with a refrigerant channel of the heat exchanger, an air inlet of the discharge cylinder and an air outlet of the catalytic combustion furnace are connected with a heat medium channel of the heat exchanger, a positive pressure side of the heat exchanger is connected with an air outlet end of the catalytic combustion furnace, and a negative pressure side of the heat exchanger is connected with an air outlet end of the dry filter. The external water tank and the water pump are arranged on the outer side of the bottom of the washing tower and are used for pre-storing and circulating water on the washing tower, the water tank is pre-introduced and is subjected to filtering before the water pump pumps water, large-particle impurities generated can be retained in the water tank, damage to the water pump and a nozzle is avoided, and the external water tank and an exposed pipeline are beneficial to maintenance and overhaul of workers.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment, and particularly relates to an organic waste gas treatment system for a vacuum calciner and a process.
Background
The waste gas treatment system produced by the vacuum calciner consists of a washing tower, a dry filter, a heat exchanger, a catalytic combustion furnace and an exhaust cylinder, and the existing waste gas treatment system has the following defects:
1. the water circulation system of the washing tower has relatively more pipelines, and the water storage position is positioned at the bottom in the tower body, so that the washing tower is not easy to maintain and clean.
2. The filter elements of the dry filter are not easy to replace and maintain.
3. The preheating effect of the catalytic combustion furnace is insufficient, the preheating time is too long, and the efficiency is low.
4. The temperature of the catalytic combustion furnace is not easy to control, and meanwhile, the temperature control energy-saving effect is insufficient.
Disclosure of Invention
The invention aims to provide an organic waste gas treatment system for a vacuum calciner and a process.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an organic waste gas treatment system for a vacuum calciner and a process, which comprises a washing tower, a dry filter, a heat exchanger, an induced draft fan, a catalytic combustion furnace and an exhaust cylinder which are sequentially connected, wherein the air outlet of the dry filter and the air inlet of the induced draft fan are connected with a heat exchanger refrigerant channel, and the air inlet of the exhaust cylinder and the air outlet of the catalytic combustion furnace are connected with a heat exchanger heat medium channel;
the positive pressure side of the heat exchanger is connected with the air outlet end of the catalytic combustion furnace, and the negative pressure side of the heat exchanger is connected with the air outlet end of the dry filter;
a water tank and a water pump are arranged on the outer side of the bottom of the washing tower, a filter plate is vertically fixed in the water tank, and the filter plate divides the water tank into a left water cavity and a right water cavity;
a water supply pipe is fixed at the water outlet of the water pump, the water pump is communicated with the inner lower part of the right water cavity, the inner bottom of the left water cavity is communicated with the inner bottom of the washing tower through a notch, and a drain pipe, an overflow pipe and a water inlet pipe are respectively arranged at the outer lower part of the left water cavity, the outer upper part of the right water cavity and the outer upper part of the left water cavity;
a rectangular frame is fixed in the dry filter, a filter element of the dry filter is fixed with the rectangular frame through a butterfly bolt, an access door and a purified air inlet are respectively arranged at the positions, located at the two sides of the filter element, on the dry filter, and an air inlet of the dry filter is close to the access door;
the catalytic combustion furnace is characterized in that a catalytic layer is arranged in the middle of the catalytic combustion furnace body, a plurality of electric heating tubes which are uniformly distributed are arranged at the upper part of the catalytic layer, an air inlet of the catalytic combustion furnace is positioned on one side of the electric heating tubes, and an air outlet of the catalytic combustion furnace is positioned at the lower part of the catalytic layer.
Furthermore, a demisting packing layer, an upper Raschig ring packing layer and a lower Raschig ring packing layer are sequentially arranged in the washing tower from top to bottom, and a waste gas inlet of the washing tower is arranged at the lower part of the lower Raschig ring packing layer.
Furthermore, spraying coil pipes are arranged in the washing tower and at the lower parts of the demisting packing layer and the zipraschig ring packing layer, the bottoms of the spraying coil pipes are connected with a plurality of nozzles, and the water supply pipes are respectively connected with the two spraying coil pipes through two branch pipes.
Furthermore, the tower body outside of scrubbing tower is equipped with three manhole, three the manhole is relative with defogging packing layer, upward raschig ring packing layer and lower pulling west ring packing layer respectively, the manhole tip is equipped with the shrouding, be equipped with the window on the shrouding.
Further, still include the switch board, be equipped with pneumatic flow valve on the branch pipe, the intracavity of left side water is equipped with level sensor, be equipped with the detection mouth on the body between scrubbing tower and dry-type filter, pneumatic flow valve, level sensor, water pump, draught fan and a plurality of electrothermal tubes respectively with switch board electric connection.
Furthermore, valve port groups are arranged on the water inlet pipe, the water outlet pipe, the pipe body between the washing tower and the dry-type filter and the clean air inlet, each valve port group comprises a pneumatic switch valve and a manual switch valve which are connected in series, and the control end of each pneumatic switch valve is electrically connected with the control cabinet.
Furthermore, a plurality of temperature sensors are arranged inside the catalytic combustion furnace and at the air inlet and the air outlet of the catalytic combustion furnace, and the temperature sensors are electrically connected with the control cabinet.
Further, the pipe body outside between catalytic combustion furnace and the heat exchanger, the pipe body outside between draught fan and catalytic combustion furnace, the heat exchanger casing outside all are equipped with the rock wool heat preservation, the thickness setting of rock wool heat preservation is in 140 supple with other 160 mm's scope.
Furthermore, a fire-retardant dust arrester is arranged on the pipe body between the dry filter and the heat exchanger, and an explosion-proof device is arranged at the top of the catalytic combustion furnace.
And furthermore, the tube bodies used for connecting the washing tower, the dry filter, the heat exchanger, the draught fan, the catalytic combustion furnace and the discharge tube are respectively provided with a voltage meter, the control cabinet is provided with an alarm, and the alarm and the voltage meters are electrically connected with the control cabinet.
The invention has the following beneficial effects:
1. according to the invention, the external water tank and the water pump are arranged on the outer side of the bottom of the washing tower and are used for pre-storing and circulating water on the washing tower, the water tank is pre-introduced and the filter plate is arranged before the water pump pumps water, generated large-particle impurities can be retained in the water tank, the damage to the water pump and the nozzle is avoided, the external water tank and the exposed pipeline are beneficial to the maintenance and overhaul of workers, the collection and the cleaning of the particle impurities generated by waste gas are facilitated, and the flowing smoothness of the circulating water is ensured.
2. According to the invention, the rectangular frame and the access door are arranged in the dry filter, and the butterfly bolts are used for mounting the filtering pieces, so that the operation of workers is facilitated, the overhaul and the maintenance of the dry filter are facilitated, and the filtering effect and the service life of the dry filter are ensured.
3. The dry type filter is provided with the clean air inlet for introducing clean air, the clean air can flow through the pipeline through which waste gas passes, preheating of the catalytic combustion furnace is facilitated, meanwhile, after the dry type filter is stopped, the clean air is firstly input, the phenomenon that waste gas is retained in a system to cause excessive use of a catalytic layer and a filter element is avoided, and the problem that the waste gas is directly discharged to cause air pollution is avoided.
4. The catalytic combustion furnace is internally provided with the plurality of electric heating tubes for heating the catalytic combustion furnace, so that the catalytic combustion furnace is fireless in heating, has an energy-saving effect, is more in number, is respectively connected with the control cabinet, is controlled in a split mode, is beneficial to accurate temperature control in the catalytic combustion furnace, and is better in energy-saving effect because only a small number of electric heating tubes are required to be controlled under the condition of smaller heat demand.
5. According to the invention, the valve port group is arranged on the water inlet pipe, the water drain pipe, the pipe body between the washing tower and the dry filter and the clean air inlet, and the valve port group has manual and electric control functions, so that the problem that the pneumatic valve port fails to operate under the condition of power failure is avoided, and the emergency function of the system is improved.
6. The invention prevents the waste gas from entering the treated clean gas to form clean gas pollution due to the leakage of the heat exchanger under abnormal conditions by feeding the waste gas into the treated clean gas through the negative pressure side and the positive pressure side in the heat exchanger to feed the treated clean gas (the positive pressure and the negative pressure of the heat exchanger are formed by a draught fan).
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an organic waste gas treatment system for a vacuum calciner and a process according to the invention;
FIG. 2 is a schematic view of the structure of a water tank;
FIG. 3 is a schematic view of a dry filter;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a washing tower, 2-a dry filter, 3-a heat exchanger, 4-an induced draft fan, 5-a catalytic combustion furnace, 6-a discharge cylinder, 7-a valve port group, 8-a rock wool heat preservation layer, 9-a fire and dust arrester, 10-an explosion-proof device, 11-a voltmeter, 101-a water tank, 102-a water pump, 103-a filter plate, 104-a left water cavity, 105-a right water cavity, 106-a water supply pipe, 107-a notch, 108-a drain pipe, 109-an overflow pipe, 110-a water inlet pipe, 111-a demisting packing layer, 112-an upper Raschig ring packing layer, 113-a lower Raschig ring packing layer, 114-a spray coil pipe, 115-a branch pipe, 116-a pneumatic flow valve, 117-a liquid level sensor, 118-a detection port and 201-a rectangular frame, 202-filtering piece, 203-butterfly bolt, 204-access door, 205-clean gas inlet, 501-catalyzing layer, 502-electric heating tube, 701-pneumatic switch valve, 702-manual switch valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the invention relates to an organic waste gas treatment system for a vacuum calciner and a process, which comprises a washing tower 1, a dry filter 2, a heat exchanger 3, an induced draft fan 4, a catalytic combustion furnace 5 and an exhaust cylinder 6 which are connected in sequence, wherein an air outlet of the dry filter 2 and an air inlet of the induced draft fan 4 are connected with a refrigerant channel of the heat exchanger 3, an air inlet of the exhaust cylinder 6 and an air outlet of the catalytic combustion furnace 5 are connected with a heat medium channel of the heat exchanger 3, and the induced draft fan 4 is a variable frequency induced draft fan;
the positive pressure side of the heat exchanger 3 is connected with the air outlet end of the catalytic combustion furnace 5, the negative pressure side of the heat exchanger 3 is connected with the air outlet end of the dry filter 2, the negative pressure side in the heat exchanger 3 is used for feeding waste gas, the positive and negative pressure of the heat exchanger 3 is formed by the induced draft fan 4, the positive pressure side is used for feeding the processed clean gas, the heat exchanger leakage in abnormal conditions is prevented, and the waste gas enters the processed clean gas to form clean gas pollution to cause environmental pollution;
a water tank 101 and a water pump 102 are arranged on the outer side of the bottom of the washing tower 1, a filter plate 103 is vertically fixed in the water tank 101, and the filter plate 103 divides the water tank 101 into a left water cavity 104 and a right water cavity 105;
a water supply pipe 106 is fixed at the water outlet of the water pump 102, the water pump 102 is communicated with the inner lower part of the right water cavity 105, the inner bottom of the left water cavity 104 is communicated with the inner bottom of the washing tower 1 through a notch 107, and a drain pipe 108, an overflow pipe 109 and a water inlet pipe 110 are respectively arranged at the outer lower part of the left water cavity 104, the outer upper part of the right water cavity 105 and the outer upper part of the left water cavity 104;
a rectangular frame 201 is fixed in the dry filter 2, a filter element 202 of the dry filter 2 is fixed with the rectangular frame 201 through a butterfly bolt 203, an access door 204 and a clean air inlet 205 are respectively arranged on the dry filter 2 and at the positions at the two sides of the filter element 202, and an air inlet of the dry filter 2 is close to the access door 204;
the middle part of the catalytic combustion furnace 5 body is provided with a catalytic layer 501, the upper part of the catalytic layer 501 is provided with a plurality of electric heating tubes 502 which are uniformly arranged, the air inlet of the catalytic combustion furnace 5 is positioned at one side of the electric heating tubes 502, and the air outlet of the catalytic combustion furnace 5 is positioned at the lower part of the catalytic layer 501.
As shown in FIG. 1, a demisting packing layer 111, an upper Raschig ring packing layer 112 and a lower Raschig ring packing layer 113 are sequentially arranged in a washing tower 1 from top to bottom, and a waste gas inlet of the washing tower 1 is arranged at the lower part of the lower Raschig ring packing layer 113.
As shown in fig. 1, spray coils 114 are disposed in the washing tower 1 and below the demisting packing layer 111 and the ziprasidone packing layer 112, a plurality of nozzles are connected to the bottoms of the spray coils 114, and the water supply pipe 106 is connected to the two spray coils 114 through two branch pipes 115.
Wherein, the tower body outside of scrubbing tower 1 is equipped with three manhole, and three manhole is relative with defogging packing layer 111, upward raschig ring packing layer 112 and lower pulling west ring packing layer 113 respectively, and the manhole tip is equipped with the shrouding, is equipped with the window on the shrouding.
As shown in fig. 1-2, the washing tower further comprises a control cabinet, a pneumatic flow valve 116 is arranged on the branch pipe 115, a liquid level sensor 117 is arranged in the left water cavity 104, a detection port 118 is arranged on a pipe body between the washing tower 1 and the dry filter 2, and the pneumatic flow valve 116, the liquid level sensor 117, the water pump 102, the induced draft fan 4 and the electric heating pipes 502 are respectively electrically connected with the control cabinet.
As shown in fig. 1-2, the water inlet pipe 110, the water outlet pipe 108, the pipe body between the washing tower 1 and the dry filter 2, and the clean air inlet 205 are all provided with a valve port group 7, the valve port group 7 includes a pneumatic switch valve 701 and a manual switch valve 702 which are connected in series, and a control end of the pneumatic switch valve 701 is electrically connected with the control cabinet.
Wherein, inside the catalytic combustion furnace 5, catalytic combustion furnace 5 air inlet and gas outlet all are equipped with a plurality of temperature sensor, and a plurality of temperature sensor all are connected with switch board electric property.
As shown in FIG. 1, the rock wool heat preservation layer 8 is arranged outside the pipe body between the catalytic combustion furnace 5 and the heat exchanger 3, outside the pipe body between the induced draft fan 4 and the catalytic combustion furnace 5 and outside the shell of the heat exchanger 3, and the thickness of the rock wool heat preservation layer 8 is set within the range of 140 and 160 mm.
As shown in fig. 1, a fire and dust arrester 9 is arranged on the pipe body between the dry filter 2 and the heat exchanger 3, and an explosion-proof device 10 is arranged on the top of the catalytic combustion furnace 5.
As shown in fig. 1, the tube bodies for connecting the washing tower 1, the dry filter 2, the heat exchanger 3, the induced draft fan 4, the catalytic combustion furnace 5 and the discharge tube 6 are all provided with a voltage meter 11, the control cabinet is provided with an alarm, and the alarm and the voltage meters 11 are all electrically connected with the control cabinet.
The working principle of the invention is as follows:
the valve port group 7 of the clean gas inlet 205 is opened, the valve port group 7 on the pipe body between the washing tower 1 and the dry filter 2 is closed, the induced draft fan 4 is used for air exhaust treatment, the electric heating pipe 502 is started to realize the flow of clean gas, so that the system is preheated, and the valve port group 7 on the pipe body between the clean gas inlet 205 and the washing tower 1 and the dry filter 2 is closed to realize the inflow of waste gas after the preheating temperature is reached.
Waste gas lets in scrubbing tower 1, reverse contact through water and waste gas, absorb dust and partial soluble organic substance, scrubbing tower 1 hydrologic cycle liquid absorbs soluble substance through a period circulation, concentration can increase, consequently, scrubbing tower 1 has set up automatic replenishment and has traded water and overflow (can carry out the drainage through drain pipe 108, can carry out the moisturizing through inlet tube 110, the control through the switch board realizes trading water, when the liquid level was too high in the water tank 101 simultaneously, can directly overflow through overflow pipe 109, simultaneously through level sensor 117 real-time detection liquid level height).
The waste gas is discharged from the top of the washing tower 1 and discharged into the dry filter 2, and in the dry filter 2, on one hand, particulate matters and large-particle moisture in the waste gas are filtered and used for protecting a subsequent catalyst, and on the other hand, the waste gas is used as a pressure stabilizing box entering a catalytic combustion furnace 5.
The waste gas after dry filtration is preheated by the heat exchanger 3, and is preheated by high-temperature gas from the catalytic combustion furnace 5, so that the load of the subsequent electric heating pipe 502 is reduced, and the energy consumption is saved.
The preheated waste gas is sent into a catalytic combustion furnace 5 through an induced draft fan 4, the temperature in the catalytic combustion furnace 5 is raised to a set temperature through an electric heating tube 502, and the waste gas is subjected to flameless combustion in the catalytic combustion furnace 5 to oxidize and decompose VOCs into CO2 and H2O.
The purified high-temperature gas exchanges heat with the gas entering the catalytic combustion furnace 5 through the heat exchanger 3 to reduce the temperature, and then is introduced into the discharge cylinder 6 to be discharged at high altitude of 15 meters.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides an organic waste gas processing system for vacuum calciner and technology, includes scrubbing tower (1), dry-type filter (2), heat exchanger (3), draught fan (4), catalytic combustion furnace (5) and emission cylinder (6) that connect gradually, the air inlet and the heat exchanger (3) refrigerant channel connection of dry-type filter (2) gas outlet and draught fan (4), the gas outlet and the heat exchanger (3) heat medium channel connection of emission cylinder (6) air inlet and catalytic combustion furnace (5), its characterized in that:
the positive pressure side of the heat exchanger (3) is connected with the air outlet end of the catalytic combustion furnace (5), and the negative pressure side of the heat exchanger (3) is connected with the air outlet end of the dry filter (2);
a water tank (101) and a water pump (102) are arranged on the outer side of the bottom of the washing tower (1), a filter plate (103) is vertically fixed in the water tank (101), and the filter plate (103) divides the water tank (101) into a left water cavity (104) and a right water cavity (105);
a water supply pipe (106) is fixed at a water outlet of the water pump (102), the water pump (102) is communicated with the inner lower part of the right water cavity (105), the inner bottom of the left water cavity (104) is communicated with the inner bottom of the washing tower (1) through a notch (107), and a drain pipe (108), an overflow pipe (109) and a water inlet pipe (110) are respectively arranged at the outer lower part of the left water cavity (104), the outer upper part of the right water cavity (105) and the outer upper part of the left water cavity (104);
a rectangular frame (201) is fixed in the dry filter (2), a filtering piece (202) of the dry filter (2) is fixed with the rectangular frame (201) through a butterfly bolt (203), an access door (204) and a clean air inlet (205) are respectively arranged on the dry filter (2) and at the positions on two sides of the filtering piece (202), and an air inlet of the dry filter (2) is close to the access door (204);
the catalytic combustion furnace is characterized in that a catalytic layer (501) is arranged in the middle of the catalytic combustion furnace (5), a plurality of electric heating tubes (502) which are uniformly arranged are arranged on the upper portion of the catalytic layer (501), an air inlet of the catalytic combustion furnace (5) is located on one side of the electric heating tubes (502), and an air outlet of the catalytic combustion furnace (5) is located on the lower portion of the catalytic layer (501).
2. The organic waste gas treatment system for the vacuum calcining furnace and the process as claimed in claim 1, characterized in that a demisting packing layer (111), an upper raschig ring packing layer (112) and a lower raschig ring packing layer (113) are sequentially arranged in the washing tower (1) from top to bottom, and the waste gas inlet of the washing tower (1) is arranged at the lower part of the lower raschig ring packing layer (113).
3. The organic waste gas treatment system for the vacuum calciner and the process as claimed in claim 2, wherein the washing tower (1) is provided with a spray coil (114) at the lower part of the demisting packing layer (111) and the ziprasidone packing layer (112), the bottom of the spray coil (114) is connected with a plurality of nozzles, and the water supply pipe (106) is respectively connected with the two spray coils (114) through two branch pipes (115).
4. The organic waste gas treatment system for the vacuum calcining furnace and the process as claimed in claim 2, wherein the outside of the tower body of the washing tower (1) is provided with three manholes, the three manholes are respectively opposite to the demisting packing layer (111), the ziprasidone ring packing layer (112) and the ziprasidone ring packing layer (113), the end parts of the manholes are provided with sealing plates, and the sealing plates are provided with windows.
5. The organic waste gas treatment system for the vacuum calciner and the process as claimed in claim 3, further comprising a control cabinet, wherein a pneumatic flow valve (116) is arranged on the branch pipe (115), a liquid level sensor (117) is arranged in the left water cavity (104), a detection port (118) is arranged on a pipe body between the washing tower (1) and the dry filter (2), and the pneumatic flow valve (116), the liquid level sensor (117), the water pump (102), the induced draft fan (4) and the electric heating pipes (502) are respectively electrically connected with the control cabinet.
6. The organic waste gas treatment system for the vacuum calciner and the process as claimed in claim 5, wherein the water inlet pipe (110), the water outlet pipe (108), the pipe body between the washing tower (1) and the dry filter (2), and the clean gas inlet (205) are all provided with a valve port group (7), the valve port group (7) comprises a pneumatic switch valve (701) and a manual switch valve (702) which are connected in series, and the control end of the pneumatic switch valve (701) is electrically connected with the control cabinet.
7. The organic waste gas treatment system for the vacuum calciner and the process as claimed in claim 6, wherein the inside of the catalytic combustion furnace (5), the air inlet and the air outlet of the catalytic combustion furnace (5) are provided with a plurality of temperature sensors, and the plurality of temperature sensors are electrically connected with the control cabinet.
8. The organic waste gas treatment system for the vacuum calciner and the process as claimed in claim 1, wherein rock wool heat preservation layers (8) are arranged outside the tube body between the catalytic combustion furnace (5) and the heat exchanger (3), outside the tube body between the induced draft fan (4) and the catalytic combustion furnace (5), and outside the shell of the heat exchanger (3), and the thickness of the rock wool heat preservation layers (8) is set in the range of 140 and 160 mm.
9. Organic waste gas treatment system for vacuum calciner and process according to claim 1, characterized in that a fire and dust arrester (9) is arranged on the pipe body between the dry filter (2) and the heat exchanger (3), and the top of the catalytic combustion furnace (5) is provided with an explosion-proof device (10).
10. The organic waste gas treatment system for the vacuum calciner and the process as claimed in claim 5, wherein the tube body for connecting the washing tower (1), the dry filter (2), the heat exchanger (3), the induced draft fan (4), the catalytic combustion furnace (5) and the discharge tube (6) is provided with a voltage meter (11), the control cabinet is provided with an alarm, and the alarm and the voltage meters (11) are electrically connected with the control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041872.7A CN114307507A (en) | 2022-01-14 | 2022-01-14 | Organic waste gas treatment system for vacuum calciner and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041872.7A CN114307507A (en) | 2022-01-14 | 2022-01-14 | Organic waste gas treatment system for vacuum calciner and process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114307507A true CN114307507A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210041872.7A Pending CN114307507A (en) | 2022-01-14 | 2022-01-14 | Organic waste gas treatment system for vacuum calciner and process |
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| CN (1) | CN114307507A (en) |
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