CN207046880U - Hydrochloric acid pickling waste liquor recovery and processing system - Google Patents
Hydrochloric acid pickling waste liquor recovery and processing system Download PDFInfo
- Publication number
- CN207046880U CN207046880U CN201720970789.2U CN201720970789U CN207046880U CN 207046880 U CN207046880 U CN 207046880U CN 201720970789 U CN201720970789 U CN 201720970789U CN 207046880 U CN207046880 U CN 207046880U
- Authority
- CN
- China
- Prior art keywords
- evaporator
- heater
- condenser
- hydrochloric acid
- processing system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000002699 waste material Substances 0.000 title claims abstract description 12
- 238000005554 pickling Methods 0.000 title claims abstract description 11
- 238000011084 recovery Methods 0.000 title claims abstract description 9
- 238000002425 crystallisation Methods 0.000 claims abstract description 20
- 239000002253 acid Substances 0.000 claims abstract description 19
- 230000008025 crystallization Effects 0.000 claims abstract description 19
- 238000001704 evaporation Methods 0.000 claims abstract description 14
- 230000008020 evaporation Effects 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000003828 vacuum filtration Methods 0.000 claims abstract description 8
- 238000004064 recycling Methods 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 235000021110 pickles Nutrition 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 208000033999 Device damage Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a kind of hydrochloric acid pickling waste liquor recovery and processing system, belong to environmental protection facility.It includes evaporation reaction unit, condensate recycling device, Crystallization Separation device, evaporation reaction unit is made up of evaporator (1) and heater (14), evaporator (1) connects with heater (14) bottom, connect with evaporator (1) first half at the top of the heater, connected in the middle part of evaporator (1) with spent acid pond (12)；Condensate recycling device is made up of condenser (2) and regenerated acid tank (8), and with being connected at the top of evaporator (1) at the top of condenser (2), condenser (2) bottom connects with regenerated acid tank (8)；Crystallization Separation device is made up of the vacuum filtration machine (4) connected with crystallization kettle (3), the centrifuge (5) connected with the vacuum filtration machine, and crystallization kettle (3) connects with evaporator (1), heater (14) respectively.The utility model is simple in construction, cost is low, is a kind of spent acid liquid processing device.
Description
Technical field
It the utility model is related to a kind of liquid waste treatment system, more particularly to a kind of hydrochloric acid pickling waste liquor recovery and processing system；
Belong to the environmental protection facility of wastewater treatment.
Background technology
It is well known that hydrochloric acid is generally employed to remove the oxidation corrosion of steel surface in metallurgical and metal-working industry
Thing, therefore substantial amounts of pickle liquor will be produced every year.Contain substantial amounts of iron and free hydrochloric acid in hydrochloric acid pickling waste liquor, such as directly arrange
Put and not only result in serious environmental pollution, and also result in resource；Therefore need to handle pickle liquor.It is main at present
Pickle liquor is handled using modes such as acid-base neutralization, heating evaporation, spray burnings.Acid-base neutralization method need to easily consume greatly
The lime of amount, and produce substantial amounts of body refuse and need drying and other treatment, it is cumbersome；Heating vaporization has that one-time investment is big, operation
The defects of maintenance cost is high, device damage is serious, medium-sized and small enterprises are difficult to bear；Although spray burning treatment effect is preferable, deposit
Energy resource consumption is big, operating cost is high the defects of.
The content of the invention
For drawbacks described above present in prior art, the utility model aims to provide a kind of energy-conserving and environment-protective, invests small, expense
With low, high treating effect hydrochloric acid pickling waste liquor recovery and processing system.
To achieve these goals, the utility model uses following technical scheme：It includes evaporation reaction unit, condensed back
Receiving apparatus, Crystallization Separation device, the evaporation reaction unit are made up of evaporator and heater, and evaporator is by circulation pipe with adding
The bottom connection of hot device, the top of the heater is connected with the first half of evaporator by steam pipe, passed through in the middle part of evaporator
Feed tube connects with spent acid pond；The condensate recycling device is made up of condenser and regenerated acid tank, passes through steaming at the top of condenser
Hair pipe is connected with the top of evaporator, and the bottom of condenser is connected by drain pipe with regenerated acid tank；The Crystallization Separation device
By crystallization kettle, the vacuum filtration machine connected by discharge nozzle with the crystallization kettle, be filtered by vacuum with this centrifugal mechanism that machine connects into,
Crystallization kettle by conveyance conduit respectively the bottom with evaporator, heater bottom connect.
The water influent pipeline is provided with feed pump, the drain pipe road is provided with Pump for giving-out, the transfer pipeline is provided with
Delivery pump；The bottom of evaporator, the bottom of heater, the bottom of condenser are mounted on control valve；Evaporator evaporates for graphite
Device, heater are graphite steam heater, condenser is graphite condenser.
Compared with the prior art, the utility model is by adopting the above-described technical solution, pickle liquor fills through evaporation reaction
After putting concentration, the hydrogen chloride, the water vapour that steam absorb through graphite condenser and turn into the dilute salt for being substantially free of frerrous chloride
Acid, thus purity is higher；Production line use is can return to after complex acid, will not be had a negative impact to acid cleaning process.Acid pickle
After evaporation reaction unit concentration, frerrous chloride therein reaches is centrifuged that frerrous chloride crystalline substance can be obtained again through crystallisation by cooling
Body.Due to using corrosion-resistant and the higher graphite evaporator of the coefficient of heat transfer, graphite heater and graphite condenser, therefore
Degree of the equipment by corrosion and damage can be substantially reduced, service life is effectively extended, reduces equipment operation maintenance expense.
3rd, as a result of vacuum filtration machine, therefore evaporator, heater are in negative pressure state operation；Not only increase work effect
Rate, but also it is avoided that pipeline blocks because crystalline solid adheres to.
The utility model not only solves the problems such as current hydrochloric acid pickling waste liquor intractability is big, cost is high；And can be with
Reclaim the hydrochloric acid in a large amount of acid pickles, frerrous chloride and realizing is turned waste into wealth, regeneration, be greatly saved resource.Have
The advantages that simple in construction, easy to operate, energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：Evaporator 1, condenser 2, crystallization kettle 3, vacuum filtration machine 4, centrifuge 5, regenerated acid pond 6, Pump for giving-out 7, again
Raw sour tank 8, delivery pump 9, conveyance conduit 10, feed pump 11, spent acid pond 12, circulation pipe 13, heater 14, steam pipe 15, evaporation
Pipe 16.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1：The utility model includes evaporation reaction unit, condensate recycling device, Crystallization Separation device.Wherein,
The evaporation reaction unit is made up of evaporator 1 and heater 14, the bottom that evaporator 1 passes through circulation pipe 13 and heater 14
Connection, the top of the heater are connected by steam pipe 15 with the first half of evaporator 1, and the middle part of evaporator 1 passes through feed tube
Connected with spent acid pond 12.The condensate recycling device is made up of condenser 2 and regenerated acid tank 8, and the top of condenser 2 passes through evaporation
Pipe 16 is connected with the top of evaporator 1, and the bottom of condenser 2 is connected by drain pipe with regenerated acid pond 6.The Crystallization Separation
Device by crystallization kettle 3, the vacuum filtration machine 4 connected by discharge nozzle with the crystallization kettle, be filtered by vacuum with this centrifugation that machine connects
Machine 5 is formed, crystallization kettle 3 by conveyance conduit 10 respectively the bottom with evaporator 1, heater 14 bottom connect.
For easy to use, raising production efficiency, the water influent pipeline is provided with feed pump 11, the drain pipe Lu Shangshe
There are Pump for giving-out 7, the conveyance conduit to be provided with delivery pump 9.
For the ease of control, the bottom of evaporator 1, the bottom of heater 14, the bottom of condenser 2 are mounted on controlling
Valve.
In order to avoid equipment is corroded and damage, increase the service life, evaporator 1 is using graphite evaporator, heater
14 use graphite condenser using graphite steam heater, condenser 2.
Claims (4)
1. a kind of hydrochloric acid pickling waste liquor recovery and processing system, including evaporation reaction unit, condensate recycling device, Crystallization Separation dress
Put, it is characterised in that：The evaporation reaction unit is made up of evaporator (1) and heater (14), and evaporator (1) passes through circulation pipe
(13) bottom with heater (14) is connected, and the top of the heater is connected by the first half of steam pipe (15) and evaporator (1)
Logical, the middle part of evaporator (1) is connected by feed tube with spent acid pond (12)；The condensate recycling device is by condenser (2) and again
Raw sour tank (8) is formed, and the top of condenser (2) is connected by evaporation tube (16) with the top of evaporator (1), condenser (2)
Bottom is connected by drain pipe with regenerated acid tank (8)；The Crystallization Separation device by crystallization kettle (3), pass through discharge nozzle and the knot
The vacuum filtration machine (4) of brilliant kettle connection, the centrifuge (5) connected with the vacuum filtration machine are formed, and crystallization kettle (3) passes through delivery pipe
The bottom with evaporator (1), the bottom of heater (14) connect respectively in road (10).
2. hydrochloric acid pickling waste liquor recovery and processing system according to claim 1, it is characterised in that：Set in the water influent pipeline
There are feed pump (11), the drain pipe road to be provided with delivery pump (9) provided with Pump for giving-out (7), the conveyance conduit.
3. hydrochloric acid pickling waste liquor recovery and processing system according to claim 1, it is characterised in that：The bottom of evaporator (1),
Bottom, the bottom of condenser (2) of heater (14) are mounted on control valve.
4. according to the hydrochloric acid pickling waste liquor recovery and processing system described in claim 1 or 2 or 3, it is characterised in that：Evaporator (1)
Be graphite steam heater for graphite evaporator, heater (14), condenser (2) be graphite condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720970789.2U CN207046880U (en) | 2017-08-05 | 2017-08-05 | Hydrochloric acid pickling waste liquor recovery and processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720970789.2U CN207046880U (en) | 2017-08-05 | 2017-08-05 | Hydrochloric acid pickling waste liquor recovery and processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207046880U true CN207046880U (en) | 2018-02-27 |
Family
ID=61500064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720970789.2U Expired - Fee Related CN207046880U (en) | 2017-08-05 | 2017-08-05 | Hydrochloric acid pickling waste liquor recovery and processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207046880U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170177A (en) * | 2019-06-17 | 2019-08-27 | 江阴市欧姆机械设备有限公司 | Evaporative condenser |
| CN115180760A (en) * | 2022-07-13 | 2022-10-14 | 首钢集团有限公司 | Method and system for preparing desulfurizer from pickling waste liquid and application of desulfurizer |
| CN115571893A (en) * | 2022-05-11 | 2023-01-06 | 陕西华特新材料股份有限公司 | Method for extracting and recovering boric acid from low-concentration hydrochloric acid waste liquid |
-
2017
- 2017-08-05 CN CN201720970789.2U patent/CN207046880U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170177A (en) * | 2019-06-17 | 2019-08-27 | 江阴市欧姆机械设备有限公司 | Evaporative condenser |
| CN115571893A (en) * | 2022-05-11 | 2023-01-06 | 陕西华特新材料股份有限公司 | Method for extracting and recovering boric acid from low-concentration hydrochloric acid waste liquid |
| CN115180760A (en) * | 2022-07-13 | 2022-10-14 | 首钢集团有限公司 | Method and system for preparing desulfurizer from pickling waste liquid and application of desulfurizer |
| CN115180760B (en) * | 2022-07-13 | 2023-08-15 | 首钢集团有限公司 | Method and system for preparing desulfurizing agent from pickling waste liquid and application of desulfurizing agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180227 Termination date: 20210805 |