CN108211407A - A kind of device for recovering tail gas and method for recovering tail gas of evaporation residue analyzer - Google Patents
A kind of device for recovering tail gas and method for recovering tail gas of evaporation residue analyzer Download PDFInfo
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- CN108211407A CN108211407A CN201711489954.3A CN201711489954A CN108211407A CN 108211407 A CN108211407 A CN 108211407A CN 201711489954 A CN201711489954 A CN 201711489954A CN 108211407 A CN108211407 A CN 108211407A
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- Prior art keywords
- tail gas
- cooler bin
- recovering tail
- liquor recovery
- devil liquor
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- Pending
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- 238000001704 evaporation Methods 0.000 title claims abstract description 37
- 230000008020 evaporation Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000002699 waste material Substances 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 29
- 239000002826 coolant Substances 0.000 claims description 16
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 241000270295 Serpentes Species 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 239000010808 liquid waste Substances 0.000 description 4
- 238000004781 supercooling Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000021393 food security Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a kind of device for recovering tail gas of evaporation residue analyzer, device for recovering tail gas device for recovering tail gas includes rack, cooler bin, refrigerating plant and devil liquor recovery case.Cooler bin, refrigerating plant and devil liquor recovery case are fixed in rack；One end is equipped with blast pipe on cooler bin, and the other end is equipped with outlet pipe, the air outlet connection of blast pipe and detection case, and outlet pipe is connect with devil liquor recovery case；Refrigerating plant is connected with cooler bin；The bottom of devil liquor recovery case is equipped with drain pipe.The present invention also provides a kind of method for recovering tail gas of evaporation residue analyzer.The device for recovering tail gas of the evaporation residue analyzer of the present invention, it liquefies from the tail gas that evaporation residue analyzer discharges by cooler bin as waste liquid, refrigerating plant persistently freezes to cooler bin, waste liquid mobile phone is discharged from drain pipe in devil liquor recovery case and is collected, it is uniformly processed, avoids exhaust gas arbitrarily environmental pollution and hazard to person caused by discharge.
Description
Technical field
The present invention relates to a kind of residue analyzer more particularly to a kind of device for recovering tail gas and tail of evaporation residue analyzer
Gas recovery method.
Background technology
In recent years, food security is gradually concerned by people, and as the saying goes " bread is the staff of life ", and the quality problems of food are closed
The health of human body, and the safety of food container is also concerned, at present, evaporation residue analyzer can be used for test bag
Insoluble matter residual quantity in packaging container, evaporation residue analyzer are suitable for polyethylene, polystyrene, polypropylene, Vinylidene Chloride tree
The systems such as various tablewares, container and food packing film, can or other various food tools, pipelines that fat makes for raw material
The measure of stripping quantity of the product in different soaks by the measure of evaporation residue, leach the analysis of index, meets product
The different demands of application.
But there are following defects for existing evaporation residue analyzer：
Existing evaporation residue analyzer calculates residual quantity by way of heating evaporation, packing container meeting in evaporation process
A large amount of exhaust gas is generated, exhaust gas is directly discharged in air, not only pollutes environment and harmful to human, but also exhaust gas is inflammable, encounters
Spark is easy to explode.
Invention content
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of tails of evaporation residue analyzer
Gas recovering device, it is waste liquid to liquefy from the tail gas that evaporation residue analyzer discharges by cooler bin, and refrigerating plant holds cooler bin
Continuous refrigeration, waste liquid mobile phone are discharged from drain pipe in devil liquor recovery case and are collected, be uniformly processed, and avoiding exhaust gas, arbitrarily discharge causes
Environmental pollution and hazard to person.
The second object of the present invention is to provide a kind of method for recovering tail gas of evaporation residue analyzer, this method pass through by
The temperature of the tail gas of evaporation residue analyzer release reduces, and it is waste liquid to make tail gas liquefaction, and exhaust-gas treatment is become liquid waste processing, is carried
The convenience of high processing and safety.
An object of the present invention adopts the following technical scheme that realization：
A kind of device for recovering tail gas of evaporation residue analyzer, device for recovering tail gas described in the device for recovering tail gas include
Rack, cooler bin, refrigerating plant and devil liquor recovery case, the cooler bin, refrigerating plant and devil liquor recovery case are fixed in rack；
One end is equipped with blast pipe on the cooler bin, and the other end is equipped with outlet pipe, the air outlet connection of the blast pipe and detection case, institute
Outlet pipe is stated to connect with devil liquor recovery case；The refrigerating plant is connected with cooler bin；The bottom of the devil liquor recovery case is equipped with row
Liquid pipe.
Further, spiral coil cooling tube is equipped in the cooler bin, one end of spiral coil cooling tube is connected on blast pipe, separately
One end is connected on discharge pipe.
Further, the surface of the spiral coil cooling tube is arranged in sequence with multiple heat dissipation scales, the head of the heat dissipation scales
Portion is fixed on spiral coil cooling tube, and the tail portion of heat dissipation scales is free end.
Further, it is also associated with radiator on the cooler bin.
Further, coolant is filled in the cooler bin, coolant, the refrigeration dress are filled in the cooler bin
It puts including cooling tower, refrigeration compressor and compressor radiator, coolant enters back into cooling tower after radiator is cooled down
It is returned in cooler bin after cooling.
Further, the bottom of the devil liquor recovery case is equipped with cone-shaped collection plate, the bottom of the cone-shaped collection plate and row
Liquid pipe connects.
Further, flow valve is installed on the drain pipe.
The second object of the present invention adopts the following technical scheme that realization：
A kind of method for recovering tail gas of evaporation residue analyzer, including,
Preparation process：Coolant is filled into cooler bin, refrigerating plant is connected with cooler bin, refrigerating plant continues to cold
But cold air is injected in case；
Cooling step：The tail gas of evaporation residue analyzer release is entered by blast pipe in cooler bin, and tail gas is through supercooling
In case, the heat in exhaust gas is sponged due to coolant, exhaust gas temperature continuously decreases, and liquefies therewith, obtains waste liquid；
Devil liquor recovery step：Waste liquid is entered by outlet pipe in devil liquor recovery case, storage；
Discharge step：Waste liquid in devil liquor recovery case is discharged by drain pipe to be collected, and is uniformly processed.
Further, tail gas rate of release is 2-5m/s, and cold air injection rate is 4-8m/s.
Further, multiple strainers are equipped in the drain pipe, waste liquid goes out successively by strainer filtering heel row.
Compared with prior art, the beneficial effects of the present invention are：
(1) device for recovering tail gas of evaporation residue analyzer of the present invention, the tail gas discharged from evaporation residue analyzer pass through
Cooler bin liquefaction is waste liquid, and refrigerating plant persistently freezes to cooler bin, and waste liquid mobile phone is discharged in devil liquor recovery case from drain pipe
It collects, is uniformly processed, avoid exhaust gas arbitrarily environmental pollution and hazard to person caused by discharge；
(2) method for recovering tail gas of evaporation residue analyzer of the present invention, this method is by the way that evaporation residue analyzer is discharged
The temperature of tail gas reduce, make tail gas liquefaction that exhaust-gas treatment be become liquid waste processing for waste liquid, improve processing convenience and
Safety.
Description of the drawings
Fig. 1 is the positive structure schematic of the device for recovering tail gas of the present invention；
Fig. 2 is the side structure schematic diagram of the device for recovering tail gas of the present invention；
Fig. 3 is the structure diagram of the spiral coil cooling tube of the present invention；
Fig. 4 is the structure diagram of the heat dissipation scales of the present invention；
Fig. 5 is the structure diagram of the refrigerating plant of the present invention.
In figure：1st, rack；2nd, cooler bin；21st, blast pipe；22nd, outlet pipe；23rd, spiral coil cooling tube；24th, heat dissipation scales；3、
Refrigerating plant；31st, cooling tower；32nd, refrigeration compressor；33rd, compressor radiator；4th, devil liquor recovery case；41st, drain pipe；42nd, it flows
Measure valve；43rd, cone-shaped collection plate；5th, radiator.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, the present invention is described further, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
With reference to Fig. 1-2, a kind of device for recovering tail gas of evaporation residue analyzer, device for recovering tail gas device for recovering tail gas packet
Including rack 1, cooler bin 2, refrigerating plant 3 and devil liquor recovery case 4.
Cooler bin 2, refrigerating plant 3 and devil liquor recovery case 4 are fixed in rack 1；One end is equipped with blast pipe on cooler bin 2
21, the other end is equipped with outlet pipe 22, and blast pipe 21 is connect with the air outlet of detection case, and outlet pipe 22 is connect with devil liquor recovery case 4；
Refrigerating plant 3 is connected with cooler bin 2；The bottom of devil liquor recovery case 4 is equipped with drain pipe 41.
With reference to Fig. 3, spiral coil cooling tube 23 is equipped in cooler bin 2, one end of spiral coil cooling tube 23 is connected on blast pipe 21,
The other end is connected on discharge pipe.Snakelike setting can increase the length of cooling tube, further increase
With reference to Fig. 4, the surface of spiral coil cooling tube 23 is arranged in sequence with multiple heat dissipation scales 24, and the head of heat dissipation scales 24 is consolidated
It is scheduled on spiral coil cooling tube 23, the tail portion of heat dissipation scales 24 is free end, and the setting of heat dissipation scales 24 is to increase radiating surface
Product, exhaust gas are given out by spiral coil cooling tube 23, heat by heat dissipation scales 24, and the heat distributed is absorbed by coolant, exhaust gas
Temperature continuously decreases, and liquefies therewith.
Radiator 5 is also associated on cooler bin 2.
With reference to Fig. 5, coolant is filled in cooler bin 2, coolant is filled in cooler bin 2, refrigerating plant 3 includes cooling
Tower 31, refrigeration compressor 32 and compressor radiator 33, coolant enter back into cooling tower 31 after radiator 5 is cooled down
It is returned in cooler bin after cooling, refrigeration compressor 32 cools down cooling tower 31, and compressor radiator 33 is to refrigeration compressor
32 radiate.
The bottom of devil liquor recovery case 4 is equipped with cone-shaped collection plate 43, and the bottom of cone-shaped collection plate 43 is connect with drain pipe 41, bores
The setting of shape collecting board 43 can be flowed into from devil liquor recovery case 4 in drain pipe 41 more glibly convenient for waste liquid, and waste liquid is avoided to be detained
At the case angle of devil liquor recovery case 4.
Flow valve 42 is installed, the setting of flow valve 42 can control flow velocity and the drain of waste liquid on drain pipe 41
The opening and closing of pipe 41.
The device for recovering tail gas of evaporation residue analyzer of the present invention, the tail gas discharged from evaporation residue analyzer is through supercooling
The liquefaction of case 2 is waste liquid, and refrigerating plant 3 persistently freezes to cooler bin 2, and waste liquid mobile phone is in devil liquor recovery case 4 from 41 row of drain pipe
Go out to collect, be uniformly processed, avoid exhaust gas arbitrarily environmental pollution and hazard to person caused by discharge；
The method of evaporation residue analyzer tail gas recycle, including,
Preparation process：Coolant is filled into cooler bin 2, refrigerating plant 3 is connected with cooler bin 2, refrigerating plant 3 continues
Cold air is injected into cooler bin 2；
Cooling step：The tail gas of evaporation residue analyzer release is entered by blast pipe 21 in cooler bin 2, and tail gas is through supercooling
But in case 2, the heat in exhaust gas is sponged due to coolant, exhaust gas temperature continuously decreases, and liquefies therewith, obtains waste liquid；
Devil liquor recovery step：Waste liquid is entered by outlet pipe 22 in devil liquor recovery case 4, storage；
Discharge step：Waste liquid in devil liquor recovery case 4 is discharged by drain pipe 41 to be collected, and is uniformly processed.
Tail gas rate of release is 2-5m/s, and cold air injection rate is 4-8m/s, and the present embodiment tail gas rate of release is 2m/
S, cold air injection rate are 5m/s, and cold air injection rate is more than tail gas rate of release, can be convenient for maintaining the low of coolant
Temperature.
Multiple strainers are equipped in drain pipe 41, waste liquid goes out successively by strainer filtering heel row, and the setting of strainer can will give up
Particulate matter filtration in liquid, convenient for follow-up liquid waste processing.
The method for recovering tail gas of evaporation residue analyzer of the present invention, this method pass through the tail that discharges evaporation residue analyzer
The temperature of gas reduces, and it is waste liquid to make tail gas liquefaction, and exhaust-gas treatment is become liquid waste processing, improves the convenience and safety of processing
Property.
The above embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of device for recovering tail gas of evaporation residue analyzer, which is characterized in that tail gas described in the device for recovering tail gas returns
Receiving apparatus includes rack, cooler bin, refrigerating plant and devil liquor recovery case, and the cooler bin, refrigerating plant and devil liquor recovery case are consolidated
It is scheduled in rack；One end is equipped with blast pipe on the cooler bin, and the other end is equipped with outlet pipe, and the blast pipe and detection case go out
Air port connects, and the outlet pipe is connect with devil liquor recovery case；The refrigerating plant is connected with cooler bin；The devil liquor recovery case
Bottom is equipped with drain pipe.
2. device for recovering tail gas as described in claim 1, which is characterized in that spiral coil cooling tube, snake are equipped in the cooler bin
One end of shape cooling tube is connected on blast pipe, and the other end is connected on discharge pipe.
3. device for recovering tail gas as claimed in claim 2, which is characterized in that the surface of the spiral coil cooling tube is arranged in sequence with
Multiple heat dissipation scales, the head of the heat dissipation scales are fixed on spiral coil cooling tube, and the tail portion of heat dissipation scales is free end.
4. device for recovering tail gas as described in claim 1, which is characterized in that be also associated with radiator on the cooler bin.
5. device for recovering tail gas as claimed in claim 4, which is characterized in that coolant is filled in the cooler bin, it is described
Refrigerating plant includes cooling tower, refrigeration compressor and compressor radiator, and coolant enters back into after radiator is cooled down
It is returned in cooler bin after cooling tower cooler.
6. device for recovering tail gas as described in claim 1, which is characterized in that received equipped with taper the bottom of the devil liquor recovery case
Collect plate, the bottom of the cone-shaped collection plate is connect with drain pipe.
7. device for recovering tail gas as described in claim 1, which is characterized in that be equipped with flow valve on the drain pipe.
8. a kind of method for recovering tail gas of evaporation residue analyzer, it is characterised in that including,
Preparation process：Coolant is filled into cooler bin, refrigerating plant is connected with cooler bin, refrigerating plant continues to cooler bin
Middle injection cold air；
Cooling step：The tail gas of evaporation residue analyzer release is entered by blast pipe in cooler bin, and tail gas passes through in cooler bin,
The heat in exhaust gas is sponged due to coolant, exhaust gas temperature continuously decreases, and liquefies therewith, obtains waste liquid；
Devil liquor recovery step：Waste liquid is entered by outlet pipe in devil liquor recovery case, storage；
Discharge step：Waste liquid in devil liquor recovery case is discharged by drain pipe to be collected, and is uniformly processed.
9. the method for recovering tail gas of evaporation residue analyzer as claimed in claim 8, which is characterized in that tail gas rate of release is
2-5m/s, cold air injection rate are 4-8m/s.
10. the method for recovering tail gas of evaporation residue analyzer as claimed in claim 8, which is characterized in that in the drain pipe
Equipped with multiple strainers, waste liquid goes out successively by strainer filtering heel row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489954.3A CN108211407A (en) | 2017-12-30 | 2017-12-30 | A kind of device for recovering tail gas and method for recovering tail gas of evaporation residue analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489954.3A CN108211407A (en) | 2017-12-30 | 2017-12-30 | A kind of device for recovering tail gas and method for recovering tail gas of evaporation residue analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108211407A true CN108211407A (en) | 2018-06-29 |
Family
ID=62647468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711489954.3A Pending CN108211407A (en) | 2017-12-30 | 2017-12-30 | A kind of device for recovering tail gas and method for recovering tail gas of evaporation residue analyzer |
Country Status (1)
| Country | Link |
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| CN (1) | CN108211407A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003071239A (en) * | 2001-09-03 | 2003-03-11 | Katsutoshi Kamei | Organic solvent recovery system |
| CA2618835A1 (en) * | 2007-01-23 | 2008-07-23 | Air Products And Chemicals, Inc. | Purification of carbon dioxide |
| CN204656040U (en) * | 2015-04-13 | 2015-09-23 | 河南理工大学 | Grease factory butane discharge recovery system |
| CN105776377A (en) * | 2016-04-14 | 2016-07-20 | 上海理工大学 | Industrial liquid hazardous waste treatment system |
| CN205569949U (en) * | 2016-03-21 | 2016-09-14 | 山西大同大学 | Novel chemical production's exhaust gas collection device |
| CN106556124A (en) * | 2015-09-30 | 2017-04-05 | 天津艾希科技有限公司 | A kind of air purifier cooling system |
| CN107349756A (en) * | 2017-07-12 | 2017-11-17 | 盐城国众化工有限公司 | A kind of chemical emission cooling liquefaction absorption plant |
| CN207856364U (en) * | 2017-12-30 | 2018-09-14 | 广州标际包装设备有限公司 | A kind of device for recovering tail gas of evaporation residue analyzer |
-
2017
- 2017-12-30 CN CN201711489954.3A patent/CN108211407A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003071239A (en) * | 2001-09-03 | 2003-03-11 | Katsutoshi Kamei | Organic solvent recovery system |
| CA2618835A1 (en) * | 2007-01-23 | 2008-07-23 | Air Products And Chemicals, Inc. | Purification of carbon dioxide |
| CN204656040U (en) * | 2015-04-13 | 2015-09-23 | 河南理工大学 | Grease factory butane discharge recovery system |
| CN106556124A (en) * | 2015-09-30 | 2017-04-05 | 天津艾希科技有限公司 | A kind of air purifier cooling system |
| CN205569949U (en) * | 2016-03-21 | 2016-09-14 | 山西大同大学 | Novel chemical production's exhaust gas collection device |
| CN105776377A (en) * | 2016-04-14 | 2016-07-20 | 上海理工大学 | Industrial liquid hazardous waste treatment system |
| CN107349756A (en) * | 2017-07-12 | 2017-11-17 | 盐城国众化工有限公司 | A kind of chemical emission cooling liquefaction absorption plant |
| CN207856364U (en) * | 2017-12-30 | 2018-09-14 | 广州标际包装设备有限公司 | A kind of device for recovering tail gas of evaporation residue analyzer |
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Application publication date: 20180629 |
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