CN102011132B - Residual acid recovery device used for pipeline pickling - Google Patents

Residual acid recovery device used for pipeline pickling Download PDF

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Publication number
CN102011132B
CN102011132B CN2010106174600A CN201010617460A CN102011132B CN 102011132 B CN102011132 B CN 102011132B CN 2010106174600 A CN2010106174600 A CN 2010106174600A CN 201010617460 A CN201010617460 A CN 201010617460A CN 102011132 B CN102011132 B CN 102011132B
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acid
pipe
withdrawing
recovery
pickling
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CN102011132A (en
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余伟
田渡彬
陈艳华
解云
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China 19th Metallurgical Corp
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China 19th Metallurgical Corp
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Abstract

The invention relates to the pipeline pickling field and provides a residual acid recovery device used for pipeline pickling. The residual acid recovery device comprises a recovery tank, a recovery pipe, an exhaust pipe and an acid waste pipe, wherein the recovery tank is a sealed cavity and is communicated with the outside through the recovery pipe, the exhaust pipe and the acid waste pipe, the bottom of the cavity of the recovery tank is provided with an adsorption layer, the adsorption layer is composed of plastic particles or plastic blocks; the outlet end of the recovery pipe points to the adsorption layer in the axial direction; the inlet end of the exhaust pipe is above the top surface of the adsorption layer; and the inlet end of the acid waste pipe is below the top surface of the adsorption layer. In the back stage of the recovery, acid mist enters through the recovery pipe and tends to rise, the plastic particles or plastic blocks tend to fall under the action of gravity and the two materials move along the opposite directions, thus the acid droplets in the acid mist are captured and collected, finally fall in the bottom of the recovery tank and are recovered through the acid waste pipe. Therefore, the aim of recovering and processing acid mist can be achieved; and the recovery device has the advantages of simple structure, low cost and high recovery efficiency. The recovery device in the invention is suitable for recovering acid liquor and acid mist after the pickling.

Description

The residual acid retrieving arrangement that is used for pipe pickling
Technical field
The present invention relates to the pipe pickling field, especially a kind of residual acid retrieving arrangement that is used for pipe pickling.
Background technology
Industrial pipeline all need clean before use, and the normal at present technology that adopts is online cycle pickling technology.In cleaning process, acid solution send sour device to send constantly in the pipeline to be cleaned through storage, removes the impurity and the stains such as iron rust of inner-walls of duct, and the acid solution of cleaning end conduit then flows back to storage and send sour device to recycle.
After finishing, pickling adopt air or nitrogen that acid solution residual in the pipeline is blown out, and through sour jar of recovery, but reclaiming latter stage, the gas of remaining acid solution and purging mixes the formation acid mist in the pipeline.Because acid mist is to discharge by means of the gas of >=0.6MPa; Can be during discharge as the sprinkling of spring; Be difficult to it is handled; All adopt direct discharging for acid mist at present, directly discharging has no directivity, and the consequence that it brought will be severe contamination atmosphere, surrounding soil, foundation of civil work and equipment; Simultaneously, directly discharge acid mist serious stimulation applications personnel of meeting and personnel's on the scene respiratory tract, unhealthful.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly can remain acid solution and sweeping gas latter stage and mix the residual acid retrieving arrangement that is used for pipe pickling that the acid mist of formation recycles reclaiming.
The technical solution adopted for the present invention to solve the technical problems is: the residual acid retrieving arrangement that is used for pipe pickling; Comprise withdrawing can, TFL, vapor pipe, ACID; Said withdrawing can is the closed cavity structure and passes through TFL, vapor pipe, ACID and external communications; The bottom of said withdrawing can is provided with adsorption layer, and said adsorption layer is made up of plastic grain or unit of plastic; The end that said TFL links to each other with withdrawing can is an exit end, and the mouth of pipe of TFL exit end axially points to adsorption layer; Said vapor pipe, ACID are entrance end with the end that withdrawing can links to each other, and the vapor pipe entrance end mouth of pipe is positioned at the adsorption layer top face, the ACID entrance end mouth of pipe is positioned at adsorption layer end face below.
Further, said vapor pipe entrance end is communicated with the cavity top of withdrawing can.
Further, said withdrawing can is provided with liquid level detection device.
Further, said vapor pipe is provided with stopping valve.
Further, said TFL by reclaim that house steward, one group are arranged side by side and with reclaim the recovery arm that house steward is connected and constitute, saidly reclaim respectively that arm one end is communicated with withdrawing can respectively, the other end is communicated with the recovery house steward respectively.
Further, said adsorption layer is made up of the plastics ball.
Further, said vapor pipe is made up of exhaust-gas receiver, one group of exhaust branch pipe that is arranged side by side and is connected with exhaust-gas receiver, and said each exhaust branch pipe one end is communicated with withdrawing can respectively, the other end is communicated with exhaust-gas receiver respectively; Said ACID is made up of acid discharge house steward, one group of acid discharge arm that is arranged side by side and is connected with the acid discharge house steward, and said each acid discharge arm one end is communicated with withdrawing can respectively, the other end is communicated with the acid discharge house steward respectively; The caliber of said exhaust branch pipe, acid discharge arm is all less than the external diameter of plastics ball; Said exhaust-gas receiver is provided with stopping valve.
Further, the said ACID entrance end mouth of pipe is positioned at the withdrawing can bottom sides, and said withdrawing can bottom surface is for being obliquely installed and valley is positioned at the ACID mouth of pipe.
Further, be provided with the neutralization tank that is in communication with the outside, the exit end of the relative entrance end of said vapor pipe inserts in the neutralization tank and is communicated with part below the neutralization tank liquid level.
Further, said withdrawing can and neutralization tank are separated through dividing plate by same tank body.
The invention has the beneficial effects as follows: during use, the pipe outlet that withdrawing can is accomplished through TFL entrance end and pickling is communicated with, is communicated with the acid jar of pickler through the ACID exit end.The recovery initial stage; Acid solution through in the pipeline of gas propelling movement pickling completion gets into withdrawing can; And directly through ACID acid solution is recycled in the acid jar, this moment, the acid solution amount was big, did not almost have gas and got in the withdrawing can; Discharge by vapor pipe for avoiding acid solution; Best employing is interrupted the liquid level that mode that ventilation pushes keeps in the withdrawing can and is lower than the vapor pipe entrance end mouth of pipe, observes liquid level and emergency switching-off vapor pipe for ease, and further also withdrawing can is provided with liquid level detection device, vapor pipe is provided with stopping valve.
Along with the carrying out of removal process, the acid solution in the entering withdrawing can gradually reduces, gas progressively increases, until reclaiming the form entering withdrawing can of latter stage with acid mist.When acid mist when TFL enters into withdrawing can; Acid mist can blow afloat the plastic grain or the unit of plastic that constitute adsorption layer; Acid mist interacts in the withdrawing can cavity with plastic grain or unit of plastic; Acid mist is tending towards rising and being tending towards falling through vapor pipe discharge, plastic grain or unit of plastic gravitate, forms acid mist with the recoil between plastic grain or the unit of plastic, in both interaction processes; Acid solution drop in the acid mist constantly is adsorbed on plastic grain or unit of plastic surface; The acid solution of identical and different plastic grains or unit of plastic surface adsorption is constantly gathered, and finally falls or falls to coming together in the withdrawing can bottom with plastic grain or unit of plastic, and then through ACID the acid solution of collecting is recycled to acid jar; The recovery of residual acid solution in the pickling pipeline after realization is accomplished pickling is especially to reclaiming the recycling that remains acid solution and sweeping gas mixing formation acid mist latter stage.This apparatus structure is simple, cost is low, and organic efficiency is high.Mix and form acid mist for further recovery remains acid solution and sweeping gas latter stage; Be provided with neutralization tank; Through neutralization solution the gas that contains micro-acid solution after adsorbing is carried out neutralizing treatment; Thoroughly avoided pollution, avoided influence operator and personnel health on the scene to atmosphere, surrounding soil, foundation of civil work and equipment.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As shown in Figure 1; The residual acid retrieving arrangement that is used for pipe pickling of the present invention; Comprise withdrawing can 1, TFL 2, vapor pipe 3, ACID 4; Said withdrawing can 1 is that the closed cavity structure is also passed through TFL 2, vapor pipe 3, ACID 4 and external communications, and the bottom of said withdrawing can 1 is provided with adsorption layer 5, and said adsorption layer 5 is made up of plastic grain or unit of plastic; The end that said TFL 2 links to each other with withdrawing can 1 is an exit end, and the mouth of pipe of TFL 2 exit end axially points to adsorption layer 5; Said vapor pipe 3, ACID 4 are entrance end with the end that withdrawing can 1 links to each other, and the vapor pipe 3 entrance end mouths of pipe are positioned at adsorption layer 5 top face, the ACID 4 entrance end mouths of pipe are positioned at adsorption layer 5 end faces below.
During use, the pipe outlet that withdrawing can 1 is accomplished through TFL 2 entrance ends and pickling is communicated with, is communicated with the acid jar of pickler through ACID 4 exit end.The recovery initial stage; Acid solution through in the pipeline of gas propelling movement pickling completion gets into withdrawing can 1; And directly through ACID 4 acid solution is recycled in the acid jar, this moment, the acid solution amount was big, did not almost have gas and got in the withdrawing can 1; For avoiding acid solution to be discharged by vapor pipe 3, best employing is interrupted the liquid level that mode that ventilation pushes keeps in the withdrawing can 1 and is lower than the vapor pipe 3 entrance end mouths of pipe.
In order to increase the timed interval of being interrupted ventilation, further, said vapor pipe 3 entrance ends are communicated with the cavity top of withdrawing can 1.Observe the acid solution liquid level in the withdrawing can 1 for ease, further, said withdrawing can 1 is provided with liquid level detection device.Through the timed interval artificial or that adjustment automatically is interrupted ventilation, guarantee carrying out smoothly of removal process through liquid level detection device, shorten recovery time, improve organic efficiency.Liquid level detection device can be liquid level sensor, liquid level tube etc., and in instance as shown in the figure, said liquid level detection device is arranged on withdrawing can 1 lateral glass window longitudinally, and window is provided with scale.
For can be when acid solution pours in withdrawing can 1 emergency switching-off vapor pipe 3, further, said vapor pipe 3 is provided with stopping valve 33.
Along with the carrying out of removal process, the acid solution in the entering withdrawing can 1 gradually reduces, gas progressively increases, until reclaiming the form entering withdrawing can 1 of latter stage with acid mist.When acid mist when TFL 2 enters into withdrawing can 1; Acid mist can blow afloat the plastic grain or the unit of plastic that constitute adsorption layer 5; Acid mist interacts in withdrawing can 1 cavity with plastic grain or unit of plastic; Acid mist is tending towards rising and being tending towards falling through vapor pipe 3 discharges, plastic grain or unit of plastic gravitate, forms acid mist with the recoil between plastic grain or the unit of plastic, in both interaction processes; Acid solution drop in the acid mist constantly is adsorbed on plastic grain or unit of plastic surface; The acid solution of identical and different plastic grains or unit of plastic surface adsorption is constantly gathered, and finally falls or falls to coming together in withdrawing can 1 bottom with plastic grain or unit of plastic, and then through ACID 4 acid solution of collecting is recycled to acid jar; The recovery of residual acid solution in the pickling pipeline after realization is accomplished pickling is especially to reclaiming the recycling that remains acid solution and sweeping gas mixing formation acid mist latter stage.This apparatus structure is simple, cost is low, and organic efficiency is high.The axial sensing adsorption layer 5 of TFL 2 exit end has guaranteed promptly that also the air-flow that TFL 2 ejects blows to adsorption layer 5, and then guarantees blowing afloat of plastic grain or unit of plastic.
In order to increase unit of plastic or the plastic grain quantity that is blown afloat; Increase the useful area that absorbs acid mist; Increase the captive probability of acid solution drop in the acid mist; Said TFL 2 by reclaim that house steward 22, one group are arranged side by side and with reclaim the recovery arm 21 that house steward 22 is connected and constitute, saidly reclaim respectively that arm 21 1 ends are communicated with withdrawing can 1 respectively, the other end is communicated with recovery house steward 22 respectively.In instance as shown in the figure, be arranged side by side the six roots of sensation and reclaimed arm 22.
The plastic grain surface-area is big; It is big to be blown afloat back kinetic energy; But discharge withdrawing can 1 with air-flow, acid solution stream easily, easy blocking vapor pipe 3 and ACID 4, so each pipeline mouth of pipe all need be provided with filtration unit; And since plastic grain inter-adhesive easily after the acid solution in absorption, stick to withdrawing can 1 wall, stick to the inwall of each pipeline, reduced the quantity and the surface-area of actual absorption acid solution.Therefore, in instance as shown in the figure, adopt unit of plastic.Further, said adsorption layer 5 is made up of plastics ball 6, is the some contact between the spheric unit of plastic; Therefore can better avoid adhesion, the gap between ball and the ball is big simultaneously, can make things convenient for the air communication mistake; Especially when initial start, in addition, sphere is compared with other shapes; The ratio of volume and surface-area is maximum, and surface smoothing, can make things convenient for gathering of acid solution drop.
Further; Said vapor pipe 3 mouths of pipe be positioned at withdrawing can 1 and the mouth of pipe downward; Acid mist gets into vapor pipe 3 again to refluxed and discharges after arriving withdrawing can 1 cavity top, can further prolong the movement path of acid mist in withdrawing can 1, increases the captive probability of acid solution drop in the acid mist.
In order thoroughly to avoid plastics ball 6 to get into vapor pipe 3, ACID 4; Said vapor pipe 3 is made up of exhaust-gas receiver 32, one group of exhaust branch pipe 31 that is arranged side by side and is connected with exhaust-gas receiver 32, and said each exhaust branch pipe 31 1 end are communicated with withdrawing can 1 respectively, the other end is communicated with exhaust-gas receiver 32 respectively; Said ACID 4 is made up of acid discharge house steward 42, one group of acid discharge arm 41 that is arranged side by side and is connected with acid discharge house steward 42, and said each acid discharge arm 41 1 end are communicated with withdrawing can 1 respectively, the other end is communicated with acid discharge house steward 42 respectively; The caliber of said exhaust branch pipe 31, acid discharge arm 41 is all less than the external diameter of plastics ball 6; Said exhaust-gas receiver 32 is provided with stopping valve 33.In instance as shown in the figure, and reclaim that arm 21 adapts, vapor pipe 3 contains six roots of sensation exhaust branch pipe 31, and ACID 4 contains six roots of sensation acid discharge arm 41.
ACID 4 can be arranged at withdrawing can 1 bottom and concordant with its bottom surface; But in order further to reduce the possibility that unit of plastic gets into ACID 4; Make things convenient for acid discharge simultaneously; The said ACID 4 entrance end mouths of pipe are positioned at withdrawing can 1 bottom sides, and said withdrawing can 1 bottom surface is for being obliquely installed and valley is positioned at ACID 4 mouths of pipe.
Further; Be provided with the neutralization tank 7 that is in communication with the outside; The exit end of said vapor pipe 4 relative entrance ends inserts in the neutralization tank 7 and is communicated with part below neutralization tank 7 liquid levels, if exist a spot of acid mist not to be recovered, this moment, acid mist can neutralize through vapor pipe 3 entering neutralization tanks 7; Thoroughly avoided the pollution of acid mist, avoided influence operator and personnel health on the scene to atmosphere, surrounding soil, foundation of civil work and equipment.
For simplified construction, said withdrawing can 1 is separated through dividing plate 9 by same tank body 8 with neutralization tank 7.

Claims (10)

1. the residual acid retrieving arrangement that is used for pipe pickling; It is characterized in that: comprise withdrawing can (1), TFL (2), vapor pipe (3), ACID (4); Said withdrawing can (1) is the closed cavity structure and passes through TFL (2), vapor pipe (3), ACID (4) and external communications; The bottom of said withdrawing can (1) is provided with adsorption layer (5), and said adsorption layer (5) is by being constituted by plastic grain or the unit of plastic that acid mist blows afloat; The end that said TFL (2) links to each other with withdrawing can (1) is an exit end, and the mouth of pipe of TFL (2) exit end axially points to adsorption layer (5); The end that said vapor pipe (3), the same withdrawing can of ACID (4) (1) link to each other is entrance end, and vapor pipe (3) the entrance end mouth of pipe is positioned at adsorption layer (5) top face, ACID (4) the entrance end mouth of pipe is positioned at adsorption layer (5) end face below.
2. the residual acid retrieving arrangement that is used for pipe pickling as claimed in claim 1 is characterized in that: said vapor pipe (3) entrance end is communicated with the cavity top of withdrawing can (1).
3. the residual acid retrieving arrangement that is used for pipe pickling as claimed in claim 2 is characterized in that: said withdrawing can (1) is provided with liquid level detection device.
4. the residual acid retrieving arrangement that is used for pipe pickling as claimed in claim 3 is characterized in that: said vapor pipe (3) is provided with stopping valve (33).
5. the residual acid retrieving arrangement that is used for pipe pickling as claimed in claim 1; It is characterized in that: said TFL (2) by reclaim that house steward (22), one group are arranged side by side and with reclaim the recovery arm (21) that house steward (22) is connected and constitute, saidly reclaim respectively that arm (21) one ends are communicated with withdrawing can (1) respectively, the other end is communicated with recovery house steward (22) respectively.
6. like claim 1,2,3, the 4 or 5 described residual acid retrieving arrangements that are used for pipe pickling, it is characterized in that: said adsorption layer (5) is made up of plastics ball (6).
7. the residual acid retrieving arrangement that is used for pipe pickling as claimed in claim 6; It is characterized in that: said vapor pipe (3) is made up of exhaust-gas receiver (32), one group of exhaust branch pipe (31) that is arranged side by side and is connected with exhaust-gas receiver (32), and said each exhaust branch pipe (31) one end are communicated with withdrawing can (1) respectively, the other end is communicated with exhaust-gas receiver (32) respectively; Said ACID (4) is made up of acid discharge house steward (42), one group of acid discharge arm (41) that is arranged side by side and is connected with acid discharge house steward (42), and said each acid discharge arm (41) one end are communicated with withdrawing can (1) respectively, the other end is communicated with acid discharge house steward (42) respectively; The caliber of said exhaust branch pipe (31), acid discharge arm (41) is all less than the external diameter of plastics ball (6); Said exhaust-gas receiver (32) is provided with stopping valve (33).
8. the residual acid retrieving arrangement that is used for pipe pickling as claimed in claim 7 is characterized in that: said ACID (4) the entrance end mouth of pipe is positioned at withdrawing can (1) bottom sides, and said withdrawing can (1) bottom surface is for being obliquely installed and valley is positioned at ACID (4) mouth of pipe.
9. like claim 1,2,3, the 4 or 5 described residual acid retrieving arrangements that are used for pipe pickling; It is characterized in that: be provided with the neutralization tank (7) that is in communication with the outside, the exit end of the relative entrance end of said vapor pipe (4) inserts in the neutralization tank (7) and with the following part of neutralization tank (7) liquid level and is communicated with.
10. the residual acid retrieving arrangement that is used for pipe pickling as claimed in claim 9 is characterized in that: said withdrawing can (1) and neutralization tank (7) are separated through dividing plate (9) by same tank body (8).
CN2010106174600A 2010-12-31 2010-12-31 Residual acid recovery device used for pipeline pickling Active CN102011132B (en)

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CN115287661B (en) * 2022-08-23 2023-07-07 广州安博新能源科技有限公司 Pickling device for high-power module production welding

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006990A1 (en) * 1999-03-22 2000-09-28 Andritz Patentverwaltung Acid is recovered from metal-containing solutions, e.g. spent pickling solutions, using jet scrubbers for dust and acid vapor removal from pyrolytic decomposition reactor off-gas
CN101328587A (en) * 2008-08-01 2008-12-24 天津二十冶建设有限公司 Hydraulic tubing three-in-one acid cleaning process
CN201172691Y (en) * 2008-01-30 2008-12-31 重庆三峰卡万塔环境产业有限公司 Pipe circling pickler
CN101637768A (en) * 2009-08-26 2010-02-03 中冶集团华冶资源开发有限责任公司 Pipeline cleaning method
CN201459241U (en) * 2009-07-29 2010-05-12 中冶实久建设有限公司 Environmental-friendly on-line pickling unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006990A1 (en) * 1999-03-22 2000-09-28 Andritz Patentverwaltung Acid is recovered from metal-containing solutions, e.g. spent pickling solutions, using jet scrubbers for dust and acid vapor removal from pyrolytic decomposition reactor off-gas
CN201172691Y (en) * 2008-01-30 2008-12-31 重庆三峰卡万塔环境产业有限公司 Pipe circling pickler
CN101328587A (en) * 2008-08-01 2008-12-24 天津二十冶建设有限公司 Hydraulic tubing three-in-one acid cleaning process
CN201459241U (en) * 2009-07-29 2010-05-12 中冶实久建设有限公司 Environmental-friendly on-line pickling unit
CN101637768A (en) * 2009-08-26 2010-02-03 中冶集团华冶资源开发有限责任公司 Pipeline cleaning method

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