CN202430000U - Waste acid treatment device used in hot-dip galvanizing production process - Google Patents
Waste acid treatment device used in hot-dip galvanizing production process Download PDFInfo
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- CN202430000U CN202430000U CN2011205631967U CN201120563196U CN202430000U CN 202430000 U CN202430000 U CN 202430000U CN 2011205631967 U CN2011205631967 U CN 2011205631967U CN 201120563196 U CN201120563196 U CN 201120563196U CN 202430000 U CN202430000 U CN 202430000U
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Abstract
The utility model relates to a waste acid treatment device used in a hot-dip galvanizing production process. The waste acid treatment device comprises a liquid transfer pump and is characterized in that the upper part of a housing is connected with a hot gas exhaust pipeline, and the lower part of the housing is connected with a deposition chamber; the upper end in the housing is connected with a sealing cover, and a liquid storage disc is arranged below the sealing cover; a hot gas chamber is mounted at the lower end in the housing; an evaporation pipe is mounted between the sealing cover and the hot gas chamber, the upper part of the evaporation pipe is communicated with the hot gas exhaust pipeline, and the lower part of the evaporation pipe is communicated with the hot gas chamber; gaps or small holes are arranged on the periphery of the part where the evaporation pipe penetrates on the liquid storage disc for enabling waste acid to flow from the liquid storage disc into an evaporation chamber; the upper part of the evaporation chamber is connected with an acid gas exhaust pipe for outputting acid gas which is obtained by evaporation, holes are formed at the lower part of the evaporation chamber on the edge of the hot gas chamber, and residual deposited matters after evaporation of the waste acid can enter into the deposition chamber through the holes. The waste acid treatment device disclosed by the utility model adopts exhaust gas exhausted from a galvanizing furnace heated by natural gas as a heat source, emission of heat energy is reduced, the waste acid treatment device is particularly suitable for comprehensive utilization of waste liquor of hydrochloric acid washing, the investment is lower, and the operation is simple.
Description
Technical field
The utility model is a kind of spent acid treatment unit to producing in the acid cleaning process when the iron and steel pot galvanize, belongs to the environmental protection equipment technical field.
Background technology
Two kinds of methods are mainly adopted in the processing of present domestic abraum salt acid: the one, and the regeneration of hydrochloric acid method; The 2nd, the acid-base neutralisation method, concrete grammar has spraying to bake method, fluidized-bed bakes treatment processs such as method, direct chlorination oxidation style, resin adsorption method, diffusion dialysis method, vacuum distillation method.
The mode of spray burning is with the stoving oven heating, is sprayed onto spent acid and carries out decomposition reaction in the burner hearth, and a part is a hydrogen chloride gas; A part generates brown iron oxide; Thereby once accomplish the recovery of acid and the generation of brown iron oxide, the recovery of acid reaches 98～99%, and restored acid can be used for pickling production; Sub product quality oxide iron powder is the raw material of electronic industry ferrite magnetic material, basic non-secondary pollution.This method weak point is, technical requirements is higher, and the treatment process one-time investment is big, by treatment capacity 5m every day
3Design, a set of equipment needs 5,000,000 yuan～8,000,000 yuan, and operation and maintenance cost is high, equipment loss is serious, and general medium-sized and small enterprises are difficult to bear.
Vacuum distillation method is to be easy to volatilize and the characteristic soluble in water and the rule of iron protochloride solubleness in hydrochloric acid soln according to hydrogenchloride; Adopt steam indirect heating, negative pressure evaporation concentration technology; The gas that evaporation produces becomes Hydrogen chloride through condenser condenses, returns the pickling workshop and reuses; Spent acid solution is after evaporation concentration makes iron protochloride reach finite concentration, and cooling concentration liquid makes iron protochloride separate out with the crystalline form, again through separating the crystal that obtains iron protochloride.This method can obtain the hydrochloric acid near 20%, but still exists dense solution of ferrous chloride needs further to handle.If obtain the iron protochloride product, its quality product is bad, and then there is difficult problem of selling in product.According to above-mentioned situation, be badly in need of a kind of less investment of research and development, energy-conserving and environment-protective, and handle back output product and satisfy specification of quality and be fit to the novel waste s.t. equipment that peanut produces.
The utility model content
The purpose of the utility model is to provide a kind of investment less, energy-conserving and environment-protective, and handle back output product and satisfy specification of quality and be fit to the spent acid treatment facility that is used for hot dip galvanizing production process that peanut produces.The utility model is through selecting for use this device structure appropriate design and material; Utilize waste heat flue gas to feed this equipment; With the spent acid heating evaporation; Settling after the evaporation is that the high density chlorination is ferrous, through cooling concentration iron protochloride is separated out with the crystalline form, again through separating the crystal that obtains iron protochloride.The gas that contains hydrochloric acid after the evaporation becomes Hydrogen chloride through condenser condenses, can return the pickling workshop and reuse, and so both can realize the comprehensive utilization of resource, again non-secondary pollution.
The purpose of the utility model is achieved in that a kind of spent acid treatment facility that is used for hot dip galvanizing production process; Comprise infusion pump systems; The liquid-inlet pipe of infusion pump systems connects the spent acid pond, and drain pipe connects the liquid storage dish, and infusion pump systems pumps spent acid to the liquid storage dish from the spent acid pond; It is characterized in that: shell upper is connected with the hot air discharge pipeline, and the bottom is connected with the sediment chamber, under the sediment chamber leg is installed, and the bottom, sediment chamber is connected with relief outlet; The upper end is connected with capping in the shell, is the liquid storage dish below the capping, and the liquid storage dish is connected with shell; The lower end is equipped with the hot gas chamber in the shell, and the hot gas chamber is connected with the hot gas inlet pipe; Between capping and hot gas chamber, generating tube is installed, on the generating tube with the hot air discharge pipeline, communicate down with the hot gas chamber; The position periphery that generating tube passes on the liquid storage dish has slit or aperture to supply spent acid to flow into evaporator room from the liquid storage dish, and evaporator room is the space that liquid storage dish, hot gas chamber and shell are surrounded; Evaporator room top is connected with the acid gas vent pipe and supplies to evaporate the acid gas output that, and the evaporator room bottom has the hole on the edge of hot gas chamber, and spent acid residual settling through evaporating after sees through this entering sediment chamber, hole.
The utility model can also be realized through following technical scheme: the position that generating tube passes the liquid storage dish is equipped with restrictor; Restrictor top is connected with the generating tube wringing fit; Lower sides has through hole and also and between the generating tube leaves the gap; Lower flange is connected with the liquid storage dish, and the spent acid on the liquid storage dish flows into evaporator room by gap between entering restrictor of the through hole on the restrictor lower sides and the generating tube and along the generating tube outer wall.
In the middle of the top, described hot gas chamber is the taper connection dish, on taper connection dish inclined-plane, generating tube is installed, and the taper connection dish is outward an annular flat edge, and annular flat has the hole on the edge, and spent acid residual settling after evaporating sees through this hole and leaks into the sediment chamber.
On sediment chamber's sidewall, flush valve is installed.
The advantage and the positively effect of the utility model are: the utility model is through the design to parts such as hot gas inlet pipe, hot gas chamber, generating tube and restrictor, liquid storage dish, capping, sediment chambers; Spent acid is evenly flowed downward along generating tube, and spent acid is evaporated behind the entering evaporator room.The spissated settling in evaporation back is that the dope entering sediment chamber of containing iron protochloride discharges from relief outlet then.Can become Hydrogen chloride through condenser condenses after the gas output that contains hydrochloric acid after the evaporation, return the pickling workshop and reuse, so both can realize the comprehensive utilization of resource, again non-secondary pollution.
The utility model investment is lower, and simple to operate, easy to use.The hot gas that is used to evaporate spent acid is the tail gas that the galvanizing furnace of Sweet natural gas heating is discharged, and save energy reduces the heat energy discharging, is specially adapted to the comprehensive utilization of small business's hydrochloric acid pickling waste liquor.
The utility model reduces production costs for the comprehensive realization environmental protection of the zinc-plated enterprise of China's low profile thermal, energy-conservation, improve the quality of products with the production technique level have positive pushing effect.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model restrictor, generating tube and liquid storage dish connect synoptic diagram;
Fig. 3 is the utility model liquid storage dish front view;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is a hot gas chamber taper connection dish front view;
Fig. 6 is the vertical view of Fig. 5.
Embodiment
Below in conjunction with description of drawings the utility model embodiment:
Referring to Fig. 1-6, the utility model comprises infusion pump systems 11, and the liquid-inlet pipe of infusion pump systems 11 connects spent acid pond 12, and drain pipe connects liquid storage dish 6, and infusion pump systems 11 pumps spent acid to liquid storage dish 6 from spent acid pond 12; It is characterized in that: shell 4 tops are connected with hot air discharge pipeline 10, and the bottom is connected with sediment chamber 13, and the sediment chamber is equipped with leg 15 13 times, and 13 bottoms, sediment chamber are connected with relief outlet 14; The upper end is connected with capping 9 in the shell 4, is liquid storage dish 6 below the capping 9, and liquid storage dish 6 is connected with shell 4; The lower end is equipped with hot gas chamber 3 in the shell 4, and hot gas chamber 3 is connected with hot gas inlet pipe 1; Between capping 9 and hot gas chamber 3, generating tube 5 is installed, on the generating tube 5 with hot air discharge pipeline 10, communicate down with hot gas chamber 3; The position periphery that generating tube 5 passes on the liquid storage dish 6 has slit or aperture to supply spent acid to flow into evaporator room 16 from liquid storage dish 6, the space that evaporator room 16 is surrounded for liquid storage dish 6, hot gas chamber 3 and shell 4; Evaporator room 16 tops are connected with acid gas vent pipe 8 and supply the acid gas output of evaporating; The evaporator room bottom has the hole on the edge of hot gas chamber 3; Spent acid residual settling after evaporating sees through this hole and gets into sediment chamber 13, flush valve 2 is installed in order to where necessary the sediment chamber being washed on sediment chamber's 13 sidewalls.
Referring to Fig. 2; The position that generating tube 5 passes liquid storage dish 6 is equipped with restrictor 7; Restrictor 7 tops are connected with generating tube 5 wringing fits; Lower sides have through hole and and generating tube 5 between leave the gap, lower flange is connected with liquid storage dish 6, the spent acid on the liquid storage dish 6 gets between restrictor 7 and the generating tube 5 gap by the through hole on restrictor 7 lower sides and along generating tube 5 outer walls inflow evaporator room 16.
In the middle of 3 tops, hot gas chamber is the taper connection dish, and generating tube 5 is installed on taper connection dish inclined-plane, and the taper connection dish is outward an annular flat edge, and annular flat has the hole on the edge, and spent acid residual settling after evaporating sees through this hole and leaks into sediment chamber 13.
Working process: infusion pump systems 11 pumps spent acid to liquid storage dish 6 from spent acid pond 12; Spent acid flows into evaporator room 16 by gap between entering restrictor 7 of the through hole on restrictor 7 lower sides and the generating tube 5 and along generating tube 5 outer walls.Hot gas is got in the generating tube by hot gas inlet pipe, hot gas chamber; Heat passes on the tube wall, and spent acid is heated under the generating tube action of high temperature, and liquid hydrochloric acid wherein is evaporated to gas and is exported by the acid gas purger; Become Hydrogen chloride through condenser condenses, return the pickling workshop and reuse; The spissated settling in evaporation back is for containing chlorination ferrous thick substances, and entering is discharged from relief outlet behind the sediment chamber, after the doping reaction, becomes iron protochloride again, by whizzer iron protochloride is separated out.Iron protochloride can be sold to steelworks ironmaking, also can directly be used for WWT.
Claims (5)
1. spent acid treatment facility that is used for hot dip galvanizing production process; Comprise infusion pump systems (11); The liquid-inlet pipe of infusion pump systems (11) connects spent acid pond (12); Drain pipe connects liquid storage dish (6), and infusion pump systems (11) pumps spent acid to liquid storage dish (6) from spent acid pond (12); It is characterized in that: shell (4) top is connected with hot air discharge pipeline (10), and the bottom is connected with sediment chamber (13), and leg (15) is installed under sediment chamber (13), and sediment chamber (13) bottom is connected with relief outlet (14); The upper end is connected with capping (9) in the shell (4), is liquid storage dish (6) below the capping (9), and liquid storage dish (6) is connected with shell (4); The interior lower end of shell (4) is equipped with hot gas chamber (3), and hot gas chamber (3) are connected with hot gas inlet pipe (1); Between capping (9) and hot gas chamber (3), generating tube (5) is installed, generating tube (5) is gone up with hot air discharge pipeline (10), is communicated with hot gas chamber (3) down; The position periphery that the last generating tube (5) of liquid storage dish (6) passes has slit or aperture to supply spent acid to flow into evaporator room (16) from liquid storage dish (6), and evaporator room (16) is the space that liquid storage dish (6), hot gas chamber (3) and shell (4) are surrounded; Evaporator room (16) top is connected with acid gas vent pipe (8) and supplies to evaporate the acid gas output that, and the evaporator room bottom has the hole on the edge of hot gas chamber (3), and spent acid residual settling through evaporating after sees through this entering sediment chamber (13), hole.
2. the spent acid treatment facility that is used for hot dip galvanizing production process according to claim 1; It is characterized in that: the position that generating tube (5) passes liquid storage dish (6) is equipped with restrictor (7); Restrictor (7) top is connected with generating tube (5) wringing fit; Lower sides have through hole and and generating tube (5) between leave the gap; Lower flange is connected with liquid storage dish (6), and the spent acid on the liquid storage dish (6) flows into evaporator room (16) by gap between entering restrictor (7) of the through hole on restrictor (7) lower sides and the generating tube (5) and along generating tube (5) outer wall.
3. the spent acid treatment facility that is used for hot dip galvanizing production process according to claim 1 and 2; It is characterized in that: be the taper connection dish in the middle of the top, described hot gas chamber (3); Generating tube (5) is installed on taper connection dish inclined-plane; The taper connection dish is outward an annular flat edge, and annular flat has the hole on the edge, and spent acid residual settling after evaporating sees through this hole and leaks into sediment chamber (13).
4. the spent acid treatment facility that is used for hot dip galvanizing production process according to claim 1 and 2 is characterized in that: on sediment chamber (13) sidewall, flush valve (2) is installed.
5. the spent acid treatment facility that is used for hot dip galvanizing production process according to claim 3 is characterized in that: on sediment chamber (13) sidewall, flush valve (2) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205631967U CN202430000U (en) | 2011-12-30 | 2011-12-30 | Waste acid treatment device used in hot-dip galvanizing production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205631967U CN202430000U (en) | 2011-12-30 | 2011-12-30 | Waste acid treatment device used in hot-dip galvanizing production process |
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| Publication Number | Publication Date |
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| CN202430000U true CN202430000U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205631967U Expired - Fee Related CN202430000U (en) | 2011-12-30 | 2011-12-30 | Waste acid treatment device used in hot-dip galvanizing production process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649335A (en) * | 2013-11-21 | 2015-05-27 | 张家港市骏马钢帘线有限公司 | Method and device for recycling ferrous chloride crystal and hydrochloric acid from chlorohydric acid pickling waste solution |
| CN106241758A (en) * | 2016-07-19 | 2016-12-21 | 中冶南方工程技术有限公司 | Retracting device and technique for acid waste liquid |
| CN108751263A (en) * | 2018-06-08 | 2018-11-06 | 常州清流环保科技有限公司 | A kind of recovery and treatment method of iron content zinc pickle liquor and its application |
| CN110170177A (en) * | 2019-06-17 | 2019-08-27 | 江阴市欧姆机械设备有限公司 | Evaporative condenser |
-
2011
- 2011-12-30 CN CN2011205631967U patent/CN202430000U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649335A (en) * | 2013-11-21 | 2015-05-27 | 张家港市骏马钢帘线有限公司 | Method and device for recycling ferrous chloride crystal and hydrochloric acid from chlorohydric acid pickling waste solution |
| CN104649335B (en) * | 2013-11-21 | 2016-08-17 | 张家港市骏马钢帘线有限公司 | Ferrous chloride crystal and the method and device of hydrochloric acid is reclaimed from hydrochloric acid pickling waste liquor |
| CN106241758A (en) * | 2016-07-19 | 2016-12-21 | 中冶南方工程技术有限公司 | Retracting device and technique for acid waste liquid |
| CN106241758B (en) * | 2016-07-19 | 2018-05-11 | 中冶南方工程技术有限公司 | Retracting device and technique for acid waste liquid |
| CN108751263A (en) * | 2018-06-08 | 2018-11-06 | 常州清流环保科技有限公司 | A kind of recovery and treatment method of iron content zinc pickle liquor and its application |
| CN110170177A (en) * | 2019-06-17 | 2019-08-27 | 江阴市欧姆机械设备有限公司 | Evaporative condenser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHANG ZHIHONG Free format text: FORMER OWNER: HEBEI ZHUOYI LINE MATERIALS CO., LTD. Effective date: 20140916 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 065600 LANGFANG, HEBEI PROVINCE TO: 071000 BAODING, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140916 Address after: 202, room 1, unit 3, building 395, Dongguan East Street, No. 071000, Hebei, Baoding Patentee after: Zhang Zhihong Address before: 065600, Hebei, Langfang province Yongqing county industrial base, latitude eight South Road Patentee before: Hebei Zhuoyi Line Materials Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BEIJING CISRI-NMT ADVANCED MATERIALS & TECHNOLOGY CO., LTD. Assignor: Zhang Zhihong Contract record no.: 2015110000004 Denomination of utility model: Waste acid treatment device used in hot-dip galvanizing production process Granted publication date: 20120912 License type: Exclusive License Record date: 20150310 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20161230 |