CN217367741U

CN217367741U - Desulfurization solution recovery unit of methyl alcohol wet flue gas desulfurization

Info

Publication number: CN217367741U
Application number: CN202220684561.8U
Authority: CN
Inventors: 宋青松; 雷鹏; 路毅; 施鹏翔; 张俊凯; 唐雄飞; 芦永艳; 段志康; 黄丽君; 张鑫; 杨晓东; 赵泉
Original assignee: Shanxi Tongzhou Group Xingyi Chemical Co ltd
Current assignee: Shanxi Tongzhou Group Xingyi Chemical Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-09-06
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a methyl alcohol wet flue gas desulfurization's doctor solution recovery unit relates to methyl alcohol wet flue gas desulfurization technical field, the power distribution box comprises a box body, the bottom fixedly connected with water pump of box, the water inlet of water pump passes through inlet channel fixedly connected with water tank, water tank fixed connection is in the bottom of box, the delivery port fixedly connected with outlet conduit of water pump. The utility model discloses a set up the water pump, the water tank, outlet conduit, the condenser pipe, the cooperation of inlet pipe is used, when retrieving, open the switch of water pump, the water pump draws out water from the water tank, finally get back to in the water tank through outlet conduit, then the coke-oven gas that will come out from the desulfurizing tower lets in the condenser pipe through the inlet pipe, the cooling through outlet conduit among the downflow process of coke-oven gas, the doctor fluid liquefaction that the coke-oven gas carried, condense on the inner wall of condenser pipe, finally be retrieved in the condenser pipe exit, make doctor fluid purity higher, the rate of recovery is higher.

Description

Desulfurization solution recovery unit of methyl alcohol wet flue gas desulfurization

Technical Field

The utility model relates to a methyl alcohol wet flue gas desulfurization technical field specifically is a methyl alcohol wet flue gas desulfurization's doctor solution recovery unit.

Background

The wet desulphurization is a desulphurization technology with wide popularity in modern chemical production at present, and mainly adopts a desulphurization solution to treat sulfur-containing substances in coke oven gas, and the desulphurization solution can be regenerated and recycled after being used. In production, the recovery degree of the desulfurization solvent is very important. The coke-oven gas is desulfurized by a plurality of desulfurizing towers during desulfurization treatment, and is required to enter a scrubber tower for treatment after the last desulfurizing tower, namely, the coke-oven gas is cleaned and cooled. In the existing wet-method methanol desulfurization process, coke oven gas discharged from a desulfurization tower contains a large amount of unseparated desulfurization solution, and a large amount of desulfurization solution is lost along with the accumulation of time, so that the waste of resources is caused.

An automatic recovery system of desulfurization solution disclosed in the chinese utility model patent application publication No. CN 213950652U, comprising a recovery tank, a filter box disposed above the recovery tank, a drain pipe disposed on the bottom surface of the filter box, the bottom end of the drain pipe penetrating the recovery tank and located inside the recovery tank, the bottom end of the drain pipe being connected to a horizontal pipe through a seal bearing, two inclined nozzles being respectively mounted on two sides of the bottom surface of the horizontal pipe, two nozzles of the nozzles being in opposite directions, a steam inlet pipe being mounted on the bottom of each side of the recovery tank, although the utility model can uniformly spray the filtered desulfurization solution in the recovery tank by mounting the horizontal pipe and the nozzles through the seal bearing, thereby making the desulfurization solution fully contact with the steam, making the steam fully contact with the desulfurization solution and heating the desulfurization solution, and further separating the sulfur from the desulfurization solution for recycling, the utility model has the advantages of improved the recycle ratio of doctor solution, avoided the wasting of resources, but the doctor solution that this utility model separates contains a large amount of vapor to make the purity of doctor solution descend, the utilization ratio reduces.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the deficiency of the prior art, the utility model provides a desulfurization solution recovery unit of methyl alcohol wet flue gas desulfurization has solved the problem that provides in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the power distribution box comprises a box body, the bottom fixedly connected with water pump of box, the water inlet of water pump passes through inlet channel fixedly connected with water tank, water tank fixed connection is in the bottom of box, the delivery port fixedly connected with outlet conduit of water pump, outlet conduit's one end extends to the inside of water tank, the box is located the top fixedly connected with baffle of water tank, the through-hole with outlet conduit looks adaptation is seted up to the upper surface of baffle, the last fixed surface of bin baffle is connected with the bin baffle, outlet conduit's middle part lateral surface is provided with the condenser pipe, the outside of box is extended to at the top of condenser pipe, the inside of bin is extended to the bottom of condenser pipe, the interior bottom of box is provided with the controller.

Optionally, the side of the water tank is fixedly connected with a refrigeration piece, the side of the tank body is provided with a heat dissipation hole matched with the refrigeration piece, and a dust screen is arranged inside the heat dissipation hole.

Optionally, the condenser pipe is wound on the outer side surface of the water outlet pipeline in a spiral shape, a feeding pipeline is arranged at the top of the condenser pipe, and a first electromagnetic valve is arranged in the middle of the feeding pipeline.

Optionally, the water outlet pipe is of a U-shaped structure, and the condensation pipe is arranged on a vertical pipe of the water outlet pipe.

Optionally, the side fixedly connected with ejection of compact pipeline of bin, the through-hole with ejection of compact pipeline looks adaptation is seted up to the side of box, the one end that ejection of compact pipeline is located the box outside is provided with the second solenoid valve.

Optionally, the side fixedly connected with exhaust duct of bin, the through-hole with exhaust duct looks adaptation is seted up to the side of box, the one end that exhaust duct is located the box outside is provided with the third solenoid valve.

(III) advantageous effects

The utility model provides a methanol wet desulphurization's doctor solution recovery unit possesses following beneficial effect:

1. this methyl alcohol wet flue gas desulfurization's doctor solution recovery unit, through setting up the water pump, the water tank, the outlet conduit, the condenser pipe, the cooperation of inlet pipe is used, when retrieving, open the switch of water pump, the water pump draws water from the water tank, finally get back to in the water tank through the outlet conduit, then the coke-oven gas that comes out from the desulfurizing tower passes through the inlet pipe and lets in the condenser pipe, the coke-oven gas downflow in-process through the cooling of outlet conduit, the doctor solution liquefaction that the coke-oven gas carried condenses on the inner wall of condenser pipe, finally be retrieved in the condenser pipe exit, make doctor solution purity higher, the rate of recovery is higher.

2. According to the desulfurization liquid recovery device for wet desulfurization of methanol, by arranging the refrigeration sheet, the heat dissipation holes and the dust screen, after the utility model works for a period of time, the temperature of water in the water tank rises, then the power supply of the refrigeration sheet is turned on, the refrigeration sheet refrigerates the water tank, and the temperature of water in the water tank is reduced, so that the situations of cooling efficiency reduction and recovery rate reduction are avoided; through setting up exhaust duct, ejection of compact pipeline, the coke-oven gas is discharged from exhaust duct, carries out next process, and the doctor solution of retrieving is retrieved from ejection of compact pipeline, the operation of being convenient for.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the present invention;

FIG. 3 is a schematic top view of the cross-sectional structure of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the present invention.

In the figure: 1. a box body; 2. a water pump; 3. a water inlet pipe; 4. a water tank; 5. a water outlet pipeline; 6. a partition plate; 7. a storage tank; 8. a condenser tube; 9. a refrigeration plate; 10. heat dissipation holes; 11. a dust screen; 12. a feed conduit; 13. a first solenoid valve; 14. a discharge pipeline; 15. a second solenoid valve; 16. an exhaust duct; 17. a third electromagnetic valve; 18. and a controller.

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.

Referring to fig. 1 to 4, the present invention provides a technical solution: a desulfurization liquid recovery device for wet desulfurization of methanol comprises a box body 1, wherein the bottom of the box body 1 is fixedly connected with a water pump 2, a water inlet of the water pump 2 is fixedly connected with a water tank 4 through a water inlet pipeline 3, the water tank 4 is fixedly connected with the bottom of the box body 1, the side surface of the water tank 4 is fixedly connected with a refrigeration sheet 9, the side surface of the box body 1 is provided with a heat dissipation hole 10 matched with the refrigeration sheet 9, the interior of the heat dissipation hole 10 is provided with a dust screen 11, a water outlet pipeline 5 is fixedly connected with a water outlet pipeline 5, one end of the water outlet pipeline 5 extends into the water tank 4, the box body 1 is fixedly connected with a baffle 6 above the water tank 4, the upper surface of the baffle 6 is provided with a through hole matched with the water outlet pipeline 5, the upper surface of the baffle 6 is fixedly connected with a storage box 7, the side surface of the storage box 7 is fixedly connected with a discharge pipeline 14, the side surface of the box body 1 is provided with a through hole matched with the discharge pipeline 14, a second electromagnetic valve 15 is arranged at one end of the discharge pipeline 14, which is positioned outside the box body 1, an exhaust pipeline 16 is fixedly connected to the side surface of the storage box 7, a through hole matched with the exhaust pipeline 16 is formed in the side surface of the box body 1, and a third electromagnetic valve 17 is arranged at one end of the exhaust pipeline 16, which is positioned outside the box body 1; outlet conduit 5's middle part lateral surface is provided with condenser pipe 8, the outside of box 1 is extended to the top of condenser pipe 8, condenser pipe 8 is the heliciform winding and at outlet conduit 5's lateral surface, condenser pipe 8's top is provided with charge-in pipeline 12, charge-in pipeline 12's middle part is provided with first solenoid valve 13, condenser pipe 8's bottom extends to the inside of bin 7, outlet conduit 5 is U type structure, condenser pipe 8 sets up on outlet conduit 5's vertical pipe, the interior bottom of box 1 is provided with controller 18.

When the device is used, a power switch of the water pump 2 is turned on, the water pump 2 extracts water from the water tank 4, the water finally returns to the water tank 4 through the water outlet pipeline 5, then coke-oven gas coming out of a desulfurization tower is introduced into the condensation pipe 8 through the feeding pipeline 12, the temperature of the coke-oven gas is reduced through the water outlet pipeline 5 in the down-flow process, desulfurization liquid carried by the coke-oven gas is liquefied and is condensed on the inner wall of the condensation pipe 8, the desulfurization liquid slides into the storage tank 7 under the action of gravity, the coke-oven gas is discharged from the exhaust pipeline 16 for the next process, when too much desulfurization liquid is stored in the storage tank 7, a switch of the second electromagnetic valve 15 is turned on, and the desulfurization liquid is discharged from the discharge pipeline 14.

In conclusion, the device is provided with the water pump 2, the water tank 4, the water outlet pipeline 5, the condenser pipe 8 and the feeding pipeline 12 which are matched for use, when the device is used for recycling, a power switch of the water pump 2 is turned on, the water pump 2 extracts water from the water tank 4, the water finally returns to the water tank 4 through the water outlet pipeline 5, then coke-oven gas coming out of the desulfurizing tower is introduced into the condenser pipe 8 through the feeding pipeline 12, the coke-oven gas is cooled through the water outlet pipeline 5 in the downward flow process, and desulfurizing liquid carried by the coke-oven gas is liquefied and condensed on the inner wall of the condenser pipe 8 and finally recycled at the outlet of the condenser pipe 8, so that the desulfurizing liquid has higher purity and higher recycling rate; by arranging the refrigerating sheet 9, the heat dissipation holes 10 and the dust screen 11, after the utility model works for a period of time, the temperature of water in the water tank 4 rises, then the power supply of the refrigerating sheet 9 is turned on, the refrigerating sheet 9 refrigerates the water tank 4, and the temperature of water in the water tank 4 is reduced, thereby avoiding the situations of cooling efficiency reduction and recovery rate reduction; through the arrangement of the exhaust pipeline 16 and the discharge pipeline 14, the coke oven gas is discharged from the exhaust pipeline 16 for the next process, and the recovered desulfurization liquid is recovered from the discharge pipeline 14, so that the operation is convenient.

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

1. The utility model provides a methanol wet flue gas desulfurization's doctor solution recovery unit, includes box (1), its characterized in that: the bottom fixedly connected with water pump (2) of box (1), the water inlet of water pump (2) passes through inlet channel (3) fixedly connected with water tank (4), water tank (4) fixed connection is in the bottom of box (1), the delivery port fixedly connected with outlet conduit (5) of water pump (2), the one end of outlet conduit (5) extends to the inside of water tank (4), box (1) is located the top fixedly connected with baffle (6) of water tank (4), the through-hole with outlet conduit (5) looks adaptation is seted up to the upper surface of baffle (6), the last fixed surface of baffle (6) is connected with bin (7), the middle part lateral surface of outlet conduit (5) is provided with condenser pipe (8), the top of condenser pipe (8) extends to the outside of box (1), the bottom of condenser pipe (8) extends to the inside of bin (7), the inner bottom of the box body (1) is provided with a controller (18).

2. The desulfurization solution recovery device for wet desulfurization of methanol according to claim 1, characterized in that: the side fixedly connected with of water tank (4) refrigeration piece (9), louvre (10) with refrigeration piece (9) looks adaptation are seted up to the side of box (1), the inside of louvre (10) is provided with dust screen (11).

3. The desulfurization solution recovery device for wet desulfurization of methanol according to claim 1, characterized in that: condenser pipe (8) are the heliciform winding in the lateral surface of outlet conduit (5), the top of condenser pipe (8) is provided with charge-in pipeline (12), the middle part of charge-in pipeline (12) is provided with first solenoid valve (13).

4. The desulfurization solution recovery device for wet desulfurization of methanol according to claim 1, characterized in that: the water outlet pipeline (5) is of a U-shaped structure, and the condensation pipe (8) is arranged on a vertical pipe of the water outlet pipeline (5).

5. The desulfurization solution recovery device for wet desulfurization of methanol according to claim 1, characterized in that: the side fixedly connected with ejection of compact pipeline (14) of bin (7), the through-hole with ejection of compact pipeline (14) looks adaptation is seted up to the side of box (1), the one end that ejection of compact pipeline (14) are located box (1) outside is provided with second solenoid valve (15).

6. The desulfurization solution recovery device for wet desulfurization of methanol according to claim 1, characterized in that: the side fixedly connected with exhaust duct (16) of bin (7), the through-hole with exhaust duct (16) looks adaptation is seted up to the side of box (1), exhaust duct (16) are located the outside one end of box (1) and are provided with third solenoid valve (17).