CN203208867U

CN203208867U - Integrated crude benzene or tar tail gas absorption device

Info

Publication number: CN203208867U
Application number: CN 201320131589
Authority: CN
Inventors: 郝五棉; 乔清花; 赵云峰; 李晓伟
Original assignee: Sedin Engineering Co Ltd
Current assignee: Sedin Engineering Co Ltd
Priority date: 2013-03-21
Filing date: 2013-03-21
Publication date: 2013-09-25
Anticipated expiration: 2023-03-21

Abstract

The utility model discloses an integrated crude benzene or tar tail gas absorption device which consists of a storage tank (10) and a tail gas purifying tower (3) and is characterized in that a rich oil discharge pipe (11) is arranged at the bottom of the storage tank (10); the tail gas purifying tower (3), a tail gas purifying pump (7) and a lean oil supplementing pipe (9) are fixed at the top of the storage tank (10); the middle part of the tail gas purifying tower (3) is filled with a filler (5); a tail gas collection pipe (8) is arranged below the filler (5); a wash oil spray pipe is arranged above the filler (5); a mist catching layer (4) is arranged above the wash oil spray pipe; an emptying pipe (1) of a flame arrester (2) is arranged at the top of the tail gas purifying tower (3); and an outlet of the tail gas purifying pump (7) is connected with the wash oil spray pipe. The device disclosed by the utility model has the advantages of low recovery cost and wide application range.

Description

The absorption plant of integral type crude benzol or tar tail gas

Technical field

The utility model belongs to a kind of absorption plant, relates in particular to a kind of production, storage and loading apparatus to containing the absorption plant of crude benzol or tar tail gas.

Background technology

Traditional tail gas recycle purifier is to produce power by the blower fan suction, washs absorption back tail gas by washer with relevant cleaning solution again and effluxes after purifying.There are shortcomings such as power consumption is big, investment is high, fault rate is high, weak effect in above-mentioned technology, and system is in negative pressure state in addition, has increased the material evaporation capacity of relevant basin, causes loss of material;

Patent CN 101721890A uses Venturi tube to capture tail gas, and system is in negative pressure state, has increased the material evaporation capacity of relevant basin, causes loss of material;

Patent CN 101879398A is associating coke-oven plant crude benzol retracting device fully, washing oil behind two sections oil-poor coolers of introducing crude benzol operation is as absorbing flushing liquor, in scrubbing tower, spray, realized reclaiming clean tail gas, but only be suitable for the crude benzol retracting device, the scope of application is narrower, and sprays washing oil and spray without circulation, directly return the crude benzol operation and handle, increased the burden of crude benzol operation greatly.

Summary of the invention

The utility model is the shortcoming that exists at above prior art, and it is low to propose a kind of cost recovery, and the scope of application is big, can be used for the device for absorbing tail gas of production, storage and the loading apparatus of crude benzol, tar.

Device for absorbing tail gas of the present utility model, it is made up of storage tank and tail gas clean-up tower, it is characterized in that in the bottom of storage tank the rich oil discharge pipe being arranged, the tail gas clean-up tower is fixedly arranged at the top at storage tank, tail gas clean-up pump and the oil-poor pipe of adding, middle part at the tail gas clean-up tower is filled with filler, the exhaust collection pipe is arranged below filler, the washing oil spray line is arranged above filler, catch the mist layer on the washing oil spray line, at the tail gas clean-up top of tower evacuated tube of spark arrester is housed, the tail gas clean-up delivery side of pump is connected with the washing oil spray line.

Aforesaid filler is that the filler range of choice is wider, can adopt to huddle the type filler, as Raschig ring, Pall ring, cascade ring etc., also can use regular type filler, and as perforated plate corrugated filler, wire packing etc., filler can be pottery, plastics or metal with material.

Aforesaid filler is single or multiple lift.

Aforesaid storage tank is horizontal tank.

The utility model compared with prior art has following advantage:

1, equipment integrated design, technology is simple, and is easy for installation, good absorbing effect;

2, simple to operate, practical, labour intensity is low;

3, device adopts atmospheric operation, accepts tail gas passively, absorbs pollutant then, reduces exhaust emissions effectively, has also reduced the loss of material such as volatile components in crude benzol, the tar simultaneously;

4, absorb the flushing liquor washing oil from the crude benzol recovery process, the washing oil that has absorbed benzene, naphthalene and other noxious material is sent the crude benzol recovery process back to and is steamed and take off processing, and therefore, the device operating cost is low, does not need discharging any waste liquor, reclaims valuable substances such as benzene, naphthalene simultaneously;

5, the device scope of application is wide, can be used for the production processes such as production, storage and entrucking of tar and crude benzol.

Description of drawings

Fig. 1 is structural representation of the present invention.

As shown in the figure, the 1-evacuated tube, the 2-spark arrester, 3-tail gas clean-up tower, 4-catches the mist layer, 5-filler, 6-washing oil circulation pipe, 7-tail gas clean-up pump, 8-exhaust collection pipe, the oil-poor pipe of adding of 9-, 10-horizontal tank, 11-rich oil discharge pipe.

The specific embodiment

Embodiment 1

Device for absorbing tail gas is made up of horizontal tank 10 and tail gas clean-up tower 3, in the bottom of horizontal tank 10 rich oil discharge pipe 11 is arranged, tail gas clean-up tower 3 is fixedly arranged at the top at horizontal tank 10, tail gas clean-up pump 7 and the oil-poor pipe 9 of adding, be filled with individual layer Raschig ring filler 5 at the middle part of tail gas clean-up tower 3, exhaust collection pipe 8 is arranged below Raschig ring filler 5, washing oil spray line 6 is arranged above Raschig ring filler 5, catch mist layer 4 on the washing oil spray line 6, at tail gas clean-up tower 3 tops spark arrester 2 and evacuated tube 1 are housed, the outlet of tail gas clean-up pump 7 is connected with washing oil spray line 6.

Claims

1. the absorption plant of integral type crude benzol or tar tail gas, it is made up of storage tank (10) and tail gas clean-up tower (3), it is characterized in that in the bottom of storage tank (10) rich oil discharge pipe (11) being arranged, at the top of storage tank (10) tail gas clean-up tower (3) is arranged fixedly, tail gas clean-up pump (7) and the oil-poor pipe (9) of adding, be filled with filler (5) at the middle part of tail gas clean-up tower (3), in filler (5) below exhaust collection pipe (8) is arranged, in filler (5) top the washing oil spray line is arranged, catch mist layer (4) on the washing oil spray line, at tail gas clean-up tower (3) top the evacuated tube (1) of spark arrester (2) is housed, the outlet of tail gas clean-up pump (7) is connected with the washing oil spray line.

2. the absorption plant of integral type crude benzol as claimed in claim 1 or tar tail gas is characterized in that described filler (5) is Raschig ring, Pall ring, cascade ring, perforated plate corrugated filler, wire packing, and the filler material is pottery, plastics or metal.

3. the absorption plant of integral type crude benzol as claimed in claim 1 or tar tail gas is characterized in that described filler (5) is single or multiple lift.

4. the absorption plant of integral type crude benzol as claimed in claim 1 or tar tail gas is characterized in that described storage tank (10) is horizontal tank.