CN217887475U - Production technology exhaust-gas treatment and recycle device - Google Patents

Production technology exhaust-gas treatment and recycle device Download PDF

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Publication number
CN217887475U
CN217887475U CN202221990633.8U CN202221990633U CN217887475U CN 217887475 U CN217887475 U CN 217887475U CN 202221990633 U CN202221990633 U CN 202221990633U CN 217887475 U CN217887475 U CN 217887475U
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tower
liquid
desorption tower
desorption
absorption tower
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王昆
赵静
杨洁菲
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Hubei Kaibisi Intelligent Equipment Co ltd
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Wuhan Kempinsh Power Equipment Co ltd
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Abstract

The utility model discloses a waste gas treatment and recycling device for production process, which comprises a primary absorption tower, a desorption tower, a secondary washing tower body, a primary deep cooler, a secondary deep cooler, a desorption tower heat exchanger, a condenser, a reflux tank, a gas-liquid separator, an absorption tower circulating pump, a desorption tower discharging pump, a washing tower discharging pump, a liquid ring vacuum pump and a tail gas fan; the first-stage absorption tower and the second-stage washing tower are provided with feed inlets at the bottoms of the towers, and the middle part of the desorption tower is provided with a bubble point feed inlet. The utility model discloses simple structure, reasonable in design, the practicality is strong.

Description

Production technology exhaust-gas treatment and recycle device
Technical Field
The utility model relates to a chemical industry equipment technical field, more specifically say, it relates to a production technology exhaust-gas treatment and recycle device.
Background
Epichlorohydrin is an important chemical raw material. A certain amount of process off-gas is generated in the production of epichlorohydrin. The process waste gas is also entrained with a large amount of other gas impurities, wherein the main components are chlorine, chloropropene, epichlorohydrin, dichloropropene, 2.3-dichloropropene, 1.2-dichloropropene, dichloropropane, trichloropropane, 1,3 dichloropropanol, 2,3 dichloropropanol and the like; these process off-gases not only pollute the environment but also cause waste of raw materials. Therefore, a proper method is sought, the process waste gas generated in the production of the epoxy chloropropane is treated, and useful components are recycled, so that the method has important practical significance and wide application prospect on environmental pollution and sustainable development.
The existing process waste gas in a workshop, a purchased finished product benzyl alcohol solution, ethylene glycol chilled water at-16 ℃ and medium-pressure steam at 200 ℃ determine the selection of a process method and the flow of an absorbent according to the property of the process waste gas and the treatment requirement.
At present, epichlorohydrin is very widely applied, and is important for researching and treating process waste gas generated in epichlorohydrin production, improving ecological environment, continuously producing and saving production raw materials.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming and the not enough of above-mentioned prior art, provide a production technology exhaust-gas treatment and recycle device, simple structure easily uses on a large scale in the industry.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a production process waste gas treatment and recycling device comprises a treatment and recycling device and a recycling device, wherein the treatment and recycling device comprises a primary absorption tower, a desorption tower, a secondary washing tower body, a primary deep cooler, a secondary deep cooler, a desorption tower heat exchanger, a condenser, a reflux tank, a gas-liquid separator, an absorption tower circulating pump, a desorption tower discharging pump, a washing tower discharging pump, a liquid ring vacuum pump and a tail gas fan; the first-stage absorption tower and the second-stage washing tower are provided with feed inlets at the bottoms of the towers, and the middle part of the desorption tower is provided with a bubble point feed inlet.
As a preferred embodiment of the present invention, the primary absorption tower of the present invention is sequentially composed of a wire mesh demister, a first downcomer, a first liquid distributor, a first structured packing device, a first liquid collector, a second liquid distributor, a second structured packing device, a primary absorption tower packing grid and a primary absorption tower feeding inlet from top to bottom;
the desorption tower consists of a desorption tower wire mesh demister, a second downcomer, a third liquid distributor, a desorption tower first structured packing device, a second liquid collector, a desorption tower feed inlet, a fourth liquid distributor, a desorption tower second structured packing device and a desorption tower packing grid from top to bottom in sequence;
the second-stage washing tower sequentially comprises a second-stage washing tower wire mesh demister, a first spray head, a first packing grid, a first pall ring, a second packing grid, a second spray head, a third packing grid, a second pall ring, a fourth packing grid and a second-stage washing tower feed inlet from top to bottom.
As the preferred embodiment of the utility model, one-level absorption tower, desorber, second grade scrubbing tower body, absorption tower circulating pump, desorber ejection of compact pump and scrubbing tower ejection of compact pump all set up subaerially, the absorption tower circulating pump is adjacent with the one-level absorption tower, the desorber ejection of compact pump is adjacent with the desorber, the scrubbing tower ejection of compact pump is adjacent with the second grade scrubbing tower body, the liquid ring vacuum pump is close to the reflux tank, the tail gas fan is located the top of second grade scrubbing tower.
As a preferred embodiment of the utility model, the primary deep cooler of the utility model is adjacent to the feed inlet of the desorption tower in the middle of the primary absorption tower;
the secondary deep cooler is adjacent to a feed inlet at the top of the primary absorption tower;
the desorption tower heat exchanger is arranged in the middle of the circulating pump of the absorption tower and the outlet pipeline of the discharge pump of the desorption tower;
the condenser is adjacent to the gas phase upper opening at the top of the desorption tower and is higher than the desorption tower.
As the preferred embodiment of the utility model, the backward flow jar position is less than the condenser, is located the below of backward flow jar, vapour and liquid separator is adjacent with the backward flow jar.
As a preferred embodiment of the utility model, the first-stage absorption tower is connected with the absorption tower circulating pump, the liquid is divided into two paths by the absorption tower circulating pump, and the two paths return to the first-stage absorption tower to be connected with the first-stage chiller, and the first-stage chiller and the first-stage absorption tower are discharged; the other path is connected with a heat exchanger of the desorption tower, and is connected with the desorption tower after being discharged from the heat exchanger of the desorption tower.
As the utility model discloses a preferred embodiment, the utility model discloses liquid is followed the desorber is gone out the back and is linked to each other with the desorber ejection of compact pump, the desorber ejection of compact pump links to each other with desorber heat exchanger, goes out and links to each other with the second grade deep cooler behind the desorber heat exchanger, goes out and links to each other with the one-level absorption tower behind the second grade deep cooler.
As the utility model discloses a preferred embodiment, the utility model discloses gaseous follow the desorption tower top is gone out the back and is linked to each other with the condenser, and liquid after the condensation and noncondensable gas get into the backward flow jar.
As a preferred embodiment of the present invention, the liquid ring vacuum pump and the gas-liquid separator are a skid block.
As the preferred embodiment of the utility model, tail gas fan links to each other with the second grade scrubbing tower body, and the gas after the processing is arranged outside behind the tail gas fan.
Compared with the prior art, the utility model provides a production technology exhaust-gas treatment and recycle device possesses following beneficial effect:
1. the processing device has simple connection between each device and is easy to operate.
2. The utility model discloses a set up the silk screen defroster for detach the entrainment (fog drop) smuggleing secretly in the gas, retrieve expensive fog drop (noble material), purify the gas and reduce the impurity in the gas.
3. The utility model discloses through setting up liquid distributor, liquid feed is to the main tank, then can not divide into each branch groove accurately, and liquid is finally discharged by the trompil of branch groove side by the horizontal direction, and the liquid that is discharged is left and is dispersed along curved baffle, finally forms even line distribution on the surface of packing, because the effect of the linear distribution of baffle, can reduce the quantity of side discharge hole; the liquid distributor has larger pore diameter and can be operated under higher gas phase load; the anti-blocking performance is good; the feed is distributed from the main tank to each of the individual branch tanks, and the amount of liquid flowing from the main tank to each of the branch tanks is controlled very precisely.
4. The utility model discloses a set up the filler support grid, filler grid simple structure can make the filler difficult fall down, and liquid easily flows down and more even, can save material and processing man-hour. The pall ring is formed by opening one layer of window and two layers of window on the wall of the Raschig ring, and the window holes of the upper layer and the lower layer are arranged in a staggered way; one side of the window blade with the cut opening is connected with the annular wall matrix, the other side of the window blade is bent into the ring and almost butted at the center of the ring, and the bending directions of the upper layer of blade and the lower layer of blade are opposite; because of the open pore, the internal and external surfaces and the space are communicated, so that the liquid and gas are uniformly distributed with the pall ring filler, and the pall ring filler has the advantages of large flux, small resistance, high separation efficiency, large operation elasticity and the like; the first packing grid and the third packing grid of the upper packing grid are arranged on the secondary washing tower to achieve the effect of packing compression, and the second packing grid and the fourth packing grid of the lower packing grid are arranged on the secondary washing tower to achieve the effect of packing support.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the waste gas treatment and recycling device of the production process of the present invention;
in the figure: t101, a primary absorption tower; t1011, a wire mesh demister; t1012, a first downcomer; t1013, a first liquid distributor; t1014, a first structured packing device; t1015, a first liquid collector; t1016, a second liquid distributor; t1017, a second structured packing device; t1018, a first-stage absorption tower packing grid; t1019, a primary absorption tower feed inlet; t102, a desorption tower; t1021, desorbing the tower wire mesh demister; t1022, a second downcomer; t1023, a third liquid distributor; t1024, a first structured packing device of the desorption tower; t1025, a second liquid collector; t1026, a fourth liquid distributor; t1027, a second structured packing device of the desorption tower; t1028, a stripper packing grid; t1029, a feed inlet of a desorption tower; t103, a secondary washing tower; t1030, a feed inlet of a secondary washing tower; t1031, a second-stage washing tower wire mesh demister; t1032, a first spray head; t1033, a first packing grid; t1034, a first pall ring; t1035, a second packing grid; t1036 and a second spray head; t1037, third packing grid; t1038, second pall ring; t1039, fourth packing grid; e101, a first-stage deep cooler; e102, a secondary deep cooler; e103, a desorption tower heat exchanger; e104, a condenser; v101, a reflux tank; v102, a gas-liquid separator; p101, an absorption tower circulating pump; p102, a discharge pump of the desorption tower; p103, a washing tower discharge pump; p104, a liquid ring vacuum pump; p105, a liquid ring vacuum pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, the utility model discloses a device for processing and recycling waste gas in epoxy chloropropane production process, the processing and recycling device comprises a first-stage absorption tower T101, a desorption tower T102, a second-stage washing tower T103 body, a first-stage deep cooler E101, a second-stage deep cooler E102, a desorption tower heat exchanger E103, a condenser E104, a reflux tank V101, a gas-liquid separator V102, an absorption tower circulating pump P101, a desorption tower discharge pump P102, a washing tower discharge pump P103, a liquid ring vacuum pump P104 and a tail gas fan P105; the first-stage absorption tower T101 and the second-stage washing tower T103 are provided with feed inlets at the bottoms of the towers, and the middle part of the desorption tower T102 is provided with a bubble point feed inlet. Processing apparatus, connect simply between each equipment, easily operation.
An optional implementation mode, as shown in fig. 2, in the present invention, the first-stage absorption tower T101 is sequentially composed of, from top to bottom, a wire mesh demister T1011, a first downcomer T1012, a first liquid distributor T1013, a first structured packing T1014, a first liquid collector T1015, a second liquid distributor T1016, a second structured packing T1017, a first-stage absorption tower packing grid T1018, and a first-stage absorption tower feed inlet T1019;
the desorption tower T102 consists of a desorption tower wire mesh demister T1021, a second downcomer T1022, a third liquid distributor T1023, a desorption tower first structured packing device T1024, a second liquid collector T1025, a desorption tower feed inlet T1029, a fourth liquid distributor T1026, a desorption tower second structured packing device T1027 and a desorption tower packing grid T1028 from top to bottom in sequence;
the second-stage washing tower T103 sequentially comprises a second-stage washing tower wire mesh demister T1031, a first spray head T1032, a first packing grid T1033, a first pall ring T1034, a second packing grid T1035, a second spray head T1036, a third packing grid T1037, a second pall ring T1038, a fourth packing grid T1039 and a second-stage washing tower feed inlet T1030 from top to bottom.
The utility model discloses set up first-order absorption tower T101, desorber T102, second grade scrubbing tower T103 on the ground, and through setting up the silk screen defroster, be used for getting rid of the entrainment in the gas foam (fog drop), retrieve expensive fog drop (noble material), purify the gas and reduce the impurity in the gas; the liquid flow is provided by a downcomer, arcuate or circular, which provides a passageway for liquid flow. By arranging the liquid distributor, liquid is fed into the main tank and then is accurately distributed in each branch tank, the liquid is finally discharged from the opening on the side surface of each branch tank in the horizontal direction, the discharged liquid is left along the arc-shaped baffle and is dispersed, and finally uniform linear distribution is formed on the surface of the filler, and the number of side discharge holes can be reduced due to the linear distribution effect of the baffle; the liquid distributor has larger pore diameter and can be operated under higher gas phase load; the anti-blocking performance is good; the feed is distributed from the main tank to each of the independent branch tanks, and the amount of liquid flowing from the main tank to each of the branch tanks is controlled very accurately. Through setting up the filler support grid, filler grid simple structure can make the filler difficult for falling, and liquid easily flows down and more even, can save material and processing man-hour. The pall ring is formed by opening one layer of window and two layers of window on the wall of the Raschig ring, and the window holes of the upper layer and the lower layer are arranged in a staggered way; one side of the window blade with the cut opening is connected with the annular wall matrix, the other side of the window blade is bent into the ring and almost butted at the center of the ring, and the bending directions of the upper layer of blade and the lower layer of blade are opposite; because of the open pore, the internal and external surfaces and the space are communicated, so that the pall ring filler with uniformly distributed liquid and gas has the advantages of large flux, small resistance, high separation efficiency, large operation elasticity and the like. The packing effect is achieved by arranging a first packing grid T1033 and a third packing grid T1037 on the upper packing grid of the secondary washing tower T103, and the packing supporting effect is achieved by arranging a second packing grid T1035 and a fourth packing grid T1039 on the lower packing grid of the secondary washing tower T103.
An optional embodiment, as shown in fig. 1-2, in the utility model discloses in first order absorption tower T101, desorber T102, second grade scrubbing tower T103 body, absorption tower circulating pump P101, desorber ejection of compact pump P102 and scrubbing tower ejection of compact pump P103 all set up subaerially, absorption tower circulating pump P101 is adjacent with first order absorption tower T101, desorber ejection of compact pump P102 is adjacent with desorber T102, scrubbing tower ejection of compact pump P103 is adjacent with second grade scrubbing tower T103 body, liquid ring vacuum pump P104 is close to reflux drum V101, tail gas fan P105 is located the top of second grade scrubbing tower T103. The utility model has the advantages of simple and reasonable structure, more be favorable to the processing and the recovery of waste gas.
1-2, the first-stage chiller E101 of the present invention is adjacent to the feed port T1029 of the desorber in the middle of the first-stage absorber T101; the secondary deep cooler E102 is adjacent to a feed inlet at the top of the primary absorption tower T101; the desorption tower heat exchanger E103 is arranged in the middle of the outlet pipelines of the absorption tower circulating pump P101 and the desorption tower discharging pump P102; the condenser E104 is adjacent to the upper gas phase port at the top of the desorber T102 and is higher than the desorber T102. The utility model discloses arrange desorber heat exchanger E103 and just connect the pipeline at absorption tower circulating pump P101 in desorber ejection of compact pump P102 outlet pipeline middle prescription, this design simple structure, practicality are strong.
An alternative embodiment, as shown in fig. 1-2, is where the reflux drum V101 is positioned below the condenser E104 and below the reflux drum V101, and the gas-liquid separator V102 is adjacent to the reflux drum V101. The utility model discloses simple structure, through the rational arrangement of each device, more be favorable to the processing and the recovery of waste gas.
An optional implementation manner, as shown in fig. 1-2, in the present invention, the primary absorption tower T101 is connected to the absorption tower circulating pump P101, the liquid is divided into two paths by the absorption tower circulating pump P101, one path of the liquid returns to the primary absorption tower T101 to be connected to the primary chiller E101, and the liquid is taken out of the primary chiller E101 and the primary absorption tower T101; the other path is connected with a heat exchanger E103 of the desorption tower, and is connected with a desorption tower T102 after being discharged from the heat exchanger E103 of the desorption tower. The utility model has simple structure, the liquid is divided into two paths by the circulating pump P101 of the absorption tower, one path of liquid returns to the first-stage absorption tower T101 to be connected with the first-stage deep cooler E101, and the liquid goes out of the first-stage deep cooler E101 and the first-stage absorption tower T101; the other path is connected with a heat exchanger E103 of the desorption tower, and is connected with a desorption tower T102 after being discharged from the heat exchanger E103 of the desorption tower, thereby being more beneficial to the treatment and the recovery of waste gas.
An optional implementation way, as shown in fig. 1-2, the utility model discloses well liquid links to each other with desorber ejection of compact pump P102 after the desorber T102 comes out, desorber ejection of compact pump P102 links to each other with desorber heat exchanger E103, links to each other with second grade chiller E102 after going out desorber heat exchanger E103, and links to each other with first-order absorption tower T101 after going out second grade chiller E102. The utility model discloses set up desorber heat exchanger E103, desorber heat exchanger E103's effect is the energy of heat exchanger make full use of material self, practices thrift steam and refrigerated water.
An alternative embodiment, as shown in fig. 1-2, in the present invention, the gas is discharged from the top of the desorber T102 and then connected to a condenser E104, and the condensed liquid and the non-condensable gas are introduced into a reflux drum V101. The reflux tank V101 of the utility model is divided into three parts, one part is used as reflux and is connected with the desorption tower T102; one part is used as useful components and is connected with a tank area as the number 9 in the figure; a portion of the non-condensable gases is connected to a liquid ring vacuum pump P104.
In an optional embodiment, the liquid ring vacuum pump P104 and the gas-liquid separator V102 in the present invention are a skid block; and the tail gas fan P105 is connected with the secondary washing tower T103 body, and the treated gas is discharged outside after passing through the tail gas fan P105. In the utility model, as shown in fig. 1-2, 11 is a liquid inlet of a liquid ring vacuum pump P104; after the gas 10 enters a liquid ring vacuum pump P104, gas-liquid separation is carried out in a gas-liquid separator V102, the liquid 12 is discharged outside, and the gas 13 is connected with the gas 14; 14 is connected with a secondary washing tower T103, the liquid is divided into two parts after being discharged from a discharge pump P103 of the washing tower, one part returns to the tower and is connected with the secondary washing tower T103, and the other part is discharged outside; the gas phase is discharged from the secondary washing tower T103 and then is connected with a tail gas fan P105, and the treated gas is discharged outside after passing through the tail gas fan P105.
The operating method of the waste gas treatment and recycling device in the epichlorohydrin production process is as follows:
the process waste gas enters from the bottom of a primary absorption tower T101, and the crude benzyl alcohol of the primary absorbent enters from the tower after being cooled by a primary deep cooler E101 and is in countercurrent contact with the process waste gas for primary absorption;
the secondary absorption absorbent is benzyl alcohol purified by the desorption tower T102, and enters the top of the primary absorption tower T101 from the top of the primary absorption tower to be in countercurrent contact with gas after primary absorption after being cooled by a secondary deep cooler E102;
the absorbed crude benzyl alcohol solution enters a desorption tower T102 for negative pressure rectification, useful components carried in the process waste gas are at the tower top and are condensed and recycled by a condenser E104, the purified benzyl alcohol solution is at the tower bottom, and an absorption tower circulating pump P101 is sent to a first-stage absorption tower T101, so that the recycling of the absorbent is realized;
the washed gas reaching the standard is exhausted after passing through a tail gas fan P105.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a production technology exhaust-gas treatment and recycle device which characterized in that: the treatment and recovery device comprises a primary absorption tower (T101), a desorption tower (T102), a secondary washing tower (T103) body, a primary deep cooler (E101), a secondary deep cooler (E102), a desorption tower heat exchanger (E103), a condenser (E104), a reflux tank (V101), a gas-liquid separator (V102), an absorption tower circulating pump (P101), a desorption tower discharge pump (P102), a washing tower discharge pump (P103), a liquid ring vacuum pump (P104) and a tail gas fan (P105); the first-stage absorption tower (T101) and the second-stage washing tower (T103) are provided with feed inlets at the bottoms of the towers, and the middle part of the desorption tower (T102) is provided with a bubble point feed inlet.
2. The waste gas treatment and recycling device of the production process according to claim 1, wherein the primary absorption tower (T101) is composed of a wire mesh demister (T1011), a first downcomer (T1012), a first liquid distributor (T1013), a first structured packing device (T1014), a first liquid collector (T1015), a second liquid distributor (T1016), a second structured packing device (T1017), a primary absorption tower packing grid (T1018) and a primary absorption tower feed inlet (T1019) from top to bottom in sequence;
the desorption tower (T102) is sequentially composed of a desorption tower wire mesh demister (T1021), a second downcomer (T1022), a third liquid distributor (T1023), a desorption tower first regular packing device (T1024), a second liquid collector (T1025), a desorption tower feed inlet (T1029), a fourth liquid distributor (T1026), a desorption tower second regular packing device (T1027) and a desorption tower packing grid (T1028) from top to bottom;
the second-stage washing tower (T103) sequentially comprises a second-stage washing tower wire mesh demister (T1031), a first spray head (T1032), a first packing grid (T1033), a first pall ring (T1034), a second packing grid (T1035), a second spray head (T1036), a third packing grid (T1037), a second pall ring (T1038), a fourth packing grid (T1039) and a second-stage washing tower feed inlet (T1030) from top to bottom.
3. The waste gas treatment and recycling device in the production process according to claim 1, wherein the primary absorption tower (T101), the desorption tower (T102), the body of the secondary washing tower (T103), the absorption tower circulating pump (P101), the desorption tower discharge pump (P102) and the washing tower discharge pump (P103) are all disposed on the ground, the absorption tower circulating pump (P101) is adjacent to the primary absorption tower (T101), the desorption tower discharge pump (P102) is adjacent to the desorption tower (T102), the washing tower discharge pump (P103) is adjacent to the body of the secondary washing tower (T103), the liquid ring vacuum pump (P104) is close to the reflux tank (V101), and the tail gas fan (P105) is located above the secondary washing tower (T103).
4. The process gas treatment and recycling apparatus of claim 1, wherein the primary chiller (E101) is located adjacent to the desorber feed (T1029) in the middle of the primary absorber (T101);
the secondary deep cooler (E102) is adjacent to a feed inlet at the top of the primary absorption tower (T101);
the desorption tower heat exchanger (E103) is arranged in the middle of outlet pipelines of the absorption tower circulating pump (P101) and the desorption tower discharging pump (P102);
the condenser (E104) is adjacent to the gas phase upper opening at the top of the desorption tower (T102) and is higher than the desorption tower (T102).
5. The process offgas treatment and recycling apparatus of claim 1, wherein the reflux drum (V101) is located lower than the condenser (E104) below the reflux drum (V101), and the gas-liquid separator (V102) is adjacent to the reflux drum (V101).
6. The waste gas treatment and recycling device of the production process according to claim 1, wherein the first absorption tower (T101) is connected to the absorption tower circulating pump (P101), the liquid is divided into two paths by the absorption tower circulating pump (P101), one path of the liquid returns to the first absorption tower (T101) and is connected to the first chiller (E101), and the liquid is discharged from the first chiller (E101) and is connected to the first absorption tower (T101); the other path is connected with a heat exchanger (E103) of the desorption tower, and is connected with the desorption tower (T102) after being discharged from the heat exchanger (E103) of the desorption tower.
7. The waste gas treatment and recycling device of the production process according to claim 6, wherein the liquid is discharged from the desorption tower (T102) and then connected to a discharge pump (P102) of the desorption tower, the discharge pump (P102) of the desorption tower is connected to a heat exchanger (E103) of the desorption tower, the discharge pump (P103) of the desorption tower is connected to a secondary deep cooler (E102), and the discharge pump (P102) of the desorption tower is connected to a primary absorption tower (T101).
8. The waste gas treatment and recycling device in the production process according to claim 1, wherein the gas is discharged from the top of the desorption tower (T102) and then is connected with a condenser (E104), and the condensed liquid and the non-condensable gas enter a reflux tank (V101).
9. The process offgas treatment and recycling apparatus of claim 1, wherein the liquid ring vacuum pump (P104) and the gas-liquid separator (V102) are a skid.
10. The waste gas treatment and recycling device of the production process according to claim 1, wherein the tail gas blower (P105) is connected to the body of the secondary scrubber (T103), and the treated gas is discharged outside after passing through the tail gas blower (P105).
CN202221990633.8U 2022-07-30 2022-07-30 Production technology exhaust-gas treatment and recycle device Active CN217887475U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115138185A (en) * 2022-07-30 2022-10-04 武汉凯比思电力设备有限公司 Device and method for treating and recycling waste gas in epichlorohydrin production process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115138185A (en) * 2022-07-30 2022-10-04 武汉凯比思电力设备有限公司 Device and method for treating and recycling waste gas in epichlorohydrin production process
CN115138185B (en) * 2022-07-30 2023-12-05 武汉凯比思电力设备有限公司 Device and method for treating and recycling waste gas in epichlorohydrin production process

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