CN109045773A - A kind of acid precipitation process system and processing method - Google Patents
A kind of acid precipitation process system and processing method Download PDFInfo
- Publication number
- CN109045773A CN109045773A CN201810946412.2A CN201810946412A CN109045773A CN 109045773 A CN109045773 A CN 109045773A CN 201810946412 A CN201810946412 A CN 201810946412A CN 109045773 A CN109045773 A CN 109045773A
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- China
- Prior art keywords
- settling tank
- valve
- pipeline
- acid
- precipitation process
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0093—Mechanisms for taking out of action one or more units of a multi-unit settling mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/07—Purification ; Separation
- C01B7/0706—Purification ; Separation of hydrogen chloride
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses a kind of sour precipitation process systems, multiple settling tanks, the inlet of each settling tank is connected to by pipeline with inlet tube, and the first valve is installed on the pipeline at inlet, input duct is connected to waste liquid pool, pneumatic diaphragm pump is housed on its pipeline, the liquid outlet of each settling tank is connected to by pipeline with drain pipe, and the second valve is installed at liquid outlet, and drain pipe is connected to acid purification system, the slag-drip opening of each settling tank connects Residue extraction pipeline by pipeline, and third valve is installed at each slag-drip opening, Residue extraction pipeline connects filter press, and the pump housing is installed on Residue extraction pipeline, first valve, second valve, third valve, pneumatic diaphragm pump and the pump housing are electrically connected with the controller.The present invention provides a kind of sour precipitation process system, and spent acid is carried out precipitation process early period, internal precipitate object is eliminated, to accelerate regeneration treatment time, while extending the service life of ion exchange resin bed.
Description
Technical field
The present invention relates to waste acid treatment fields, and in particular to a kind of acid precipitation process system and processing method.
Background technique
It in stainless steel manufacture field, needs to carry out pickling operation when carrying out cold rolling to stainless steel, generally uses chlorohydric acid pickling
Steel plate removes silicon.When acid pickling steel plate with hydrochloric acid removes silicon, hydrochloric acid is easy to chemically react with the iron oxide of plate surface, generates chlorination
Ferrous or iron chloride, frerrous chloride or iron chloride are dissolved in pickling solution, reduce the concentration of hydrochloric acid.With acid cleaning process into
It goes, the iron concentration in hydrochloric acid solution can be increased constantly, and the concentration of hydrochloric acid will reduce accordingly, and last pickling hydrochloric acid will not
It can reuse.Such pickling not only increases the waste of pickled material, also produces largely useless emission.
Need to carry out waste acid treatment for this emission, these spent acid are exactly sent directly into regeneration system by usual way
System is handled, and due to containing a large amount of sediments in these spent acid, it is sent directly into regenerative system and not only extends regenerative system
The time is handled, and sediment is adsorbed on ion exchange resin bed, causes resin bed ion-exchange capacity to decline, thus can not
It uses.
Summary of the invention
The purpose of invention: the purpose of the invention is to make up the deficiencies in the prior art, a kind of sour precipitation process system is provided
Spent acid is carried out precipitation process early period, eliminates internal precipitate object by system, to accelerate regeneration treatment time, while extend from
The service life of sub-exchange resin bed.
The technical solution adopted by the present invention: a kind of acid precipitation process system, including multiple settling tanks, each settling tank into
Liquid mouth is connected to by pipeline with inlet tube, and the first valve is equipped on the pipeline at inlet, and input duct and waste liquid pool connect
It is logical, pneumatic diaphragm pump is housed, the liquid outlet of each settling tank is connected to by pipeline with drain pipe, and is pacified at liquid outlet on pipeline
Equipped with the second valve, and drain pipe is connected to acid purification system, and the slag-drip opening of each settling tank connects Residue extraction pipeline by pipeline,
And third valve is installed at each slag-drip opening, and Residue extraction pipeline connects filter press, and the pump housing is equipped on Residue extraction pipeline, and described the
One valve, the second valve, third valve, pneumatic diaphragm pump and the pump housing are electrically connected with the controller.
Preferably, each precipitating top tank structure place of being located in the liquid inlet is equipped with radar level gauge and is electrically connected with controller
It connects, and liquid level sensor is installed at the bottom pyramidal face of settling tank and is electrically connected with the controller.
Preferably, the controller includes PLC module, touch display screen and power supply module.
Preferably, being connected between the input duct and Residue extraction pipeline by pipeline, and the 4th valve is installed on pipeline
Door is electrically connected with the controller, the structure is excessive in waste acid quantity and when three settling tanks can not load, spent acid is fed directly to deslagging
Line treatment.
Preferably, being also equipped with a spare pneumatic diaphragm pump in the input duct, it is equipped on the Residue extraction pipeline
Another spare pump housing is replaced in former pump housing failure.
A kind of acid precipitation treatment method, includes the following steps:
A, initialization controller, situation in each settling tank of touch display screen, valve switch situation and the pump housing switch shape at this time
Condition；
B, by touch display screen open pneumatic diaphragm pump, and open the first settling tank the first valve so that spent acid by into
First settling tank is sent into liquid pipe road, but when radar level gauge detects liquid level signal, and the first valve on the settling tank is closed,
The first valve opening on next settling tank, waste liquid continue to be fed into next settling tank, until the last one settling tank hydroful
Afterwards, pneumatic diaphragm pump is closed；
C, the sedimentation time is arranged by touch screen, after the time reaches, the second valve on first settling tank is opened, will be internal
The acid solution precipitated drains into acid purification system processing, and after liquid level sensor detects liquid level signal, the second of the settling tank
Valve is closed, third valve and the pump housing are opened, while the second valve opening of next settling tank, at this time next settling tank
Acid solution continues to be fed into acid purification system, and the precipitation slag in previous settling tank is then sent into filter press and is continued with；
D, after the completion of acid solution in the last one settling tank and precipitating Slag treatment, repeat the above steps b ~ c.
The utility model has the advantages that a kind of disclosed sour precipitation process system and processing method, have the following beneficial effects:
Spent acid is subjected to precipitation process early period, eliminates internal precipitate object, to accelerate regeneration treatment time, while extending ion friendship
Change the service life of resin bed.
Detailed description of the invention
Fig. 1 is system connection figure of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of disclosed sour precipitation process system, including multiple settling tank parallel arrangeds, and in the present embodiment
Be introduced by taking three settling tanks as an example, as shown in Figure 1, include the first settling tank 1, the second settling tank 2, third settling tank 3 and
Controller, wherein the inlet 5 of the first settling tank, the second settling tank and third settling tank is connected to by pipeline with inlet tube 6, and
First valve 7 is installed, inlet tube is connected to waste liquid pool, and pneumatic diaphragm pump 8 is housed on pipeline, is led on the pipeline at inlet
It crosses pneumatic diaphragm pump the spent acid in waste liquid pool is evacuated in each settling tank, by opening different the first valve come to different
Spent acid is injected in tank body.
The liquid outlet 9 of first settling tank, the second settling tank and third settling tank is connected to by pipeline with drain pipe 10,
And the second valve 11 is installed at liquid outlet, and drain pipe is connected to acid purification system, the acid solution that tank interior has been precipitated is arranged
It is handled to acid purification system, the second valve by opening different tank bodies carries out drain.
The slag-drip opening 12 of first settling tank, the second settling tank and third settling tank connects Residue extraction pipeline by pipeline
13, and third valve 14 is installed at each slag-drip opening, Residue extraction pipeline connects filter press, and the pump housing is equipped on Residue extraction pipeline
15, the waste residue for precipitating pot bottom is drained into filter press by the pump housing and is handled.
The input duct is located at third settling tank to be directly connected to Residue extraction pipeline by pipeline 16, and is pacified on the pipeline
Equipped with the 4th valve 17, when waste acid quantity is excessive, spent acid is immediately discharged to filter press and is handled.
First settling tank, the second settling tank and the third precipitating top tank structure place of being located in the liquid inlet are equipped with radar level
Meter, and it is located at the first settling tank, liquid level sensor is installed at the bottom pyramidal face of the second settling tank and third settling tank.
The controller and the first valve, the second valve, third valve, pneumatic diaphragm valve, the pump housing, radar level gauge and liquid
Level sensor electrical connection acquires the liquid level signal of radar level gauge and liquid level sensor, and is controlled accordingly according to liquid level information
The pump housing or valve comprising PLC module, touch display screen and power supply module, PLC module are simatic s7-300 system
PLC is arranged, and the DOP-B07S515 of touch screen model Delta, PLC realize corresponding control, and touch screen then carries out each precipitating
Tank situation is shown and the switch situation of each valve and the pump housing, while the control of respective switch is carried out by touch screen, power supply
Power supply then realizes power supply.
A kind of acid precipitation treatment method, includes the following steps:
A, initialization controller, situation in each settling tank of touch display screen, valve switch situation and the pump housing switch shape at this time
Condition；
B, by touch display screen open pneumatic diaphragm pump, and open the first settling tank the first valve so that spent acid by into
The first settling tank is sent into liquid pipe road, but when radar level gauge detects liquid level signal, and the first valve on the settling tank is closed, under
The first valve opening on one settling tank, waste liquid continue to be fed into next settling tank, until after the last one settling tank hydroful,
Pneumatic diaphragm pump is closed；
C, the sedimentation time is arranged by touch screen, after the time reaches, the second valve on the first settling tank is opened, and inside is heavy
The acid solution formed sediment drains into acid purification system processing, and after liquid level sensor detects liquid level signal, the second valve of the settling tank
Door is closed, and third valve and the pump housing are opened, while the second valve opening of next settling tank, at this time the acid of next settling tank
Liquid continues to be fed into acid purification system, and the precipitation slag in previous settling tank is then sent into filter press and is continued with；
D, after the completion of acid solution in the last one settling tank and precipitating Slag treatment, repeat the above steps b ~ c.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of acid precipitation process system, it is characterised in that: including multiple settling tanks, the inlet of each settling tank passes through pipeline
It is connected to inlet tube, and the first valve is installed on the pipeline at inlet, input duct is connected to waste liquid pool, is filled on pipeline
There is pneumatic diaphragm pump, the liquid outlet of each settling tank is connected to by pipeline with drain pipe, and the second valve is equipped at liquid outlet,
And drain pipe is connected to acid purification system, the slag-drip opening of each settling tank connects Residue extraction pipeline, and each slag-drip opening by pipeline
Place is equipped with third valve, and Residue extraction pipeline connects filter press, and the pump housing is equipped on Residue extraction pipeline, first valve, and second
Valve, third valve, pneumatic diaphragm pump and the pump housing are electrically connected with the controller.
2. a kind of sour precipitation process system according to claim 1, it is characterised in that: the inner wall of each settling tank be located at into
Radar level gauge is installed at liquid mouth to be electrically connected with the controller, and is located at the bottom pyramidal face of settling tank and level sensing is installed
Device is electrically connected with the controller.
3. a kind of acid precipitation process system described according to claim 1 ~ 2, it is characterised in that: the controller includes PLC mould
Block, touch display screen and power supply module.
4. a kind of sour precipitation process system according to claim 1, it is characterised in that: the input duct and Residue extraction pipeline
Between be connected to by pipeline, and the 4th valve is installed on pipeline and is electrically connected with the controller.
5. a kind of sour precipitation process system according to claim 1, it is characterised in that: be also equipped in the input duct
One spare pneumatic diaphragm pump is equipped with another spare pump housing on the Residue extraction pipeline.
6. a kind of processing method based on processing system in claim 1, it is characterised in that include the following steps:
A, initialization controller, situation in each settling tank of touch display screen, valve switch situation and the pump housing switch shape at this time
Condition；
B, pneumatic diaphragm pump is opened by touch display screen, and opens the first valve of first settling tank, so that spent acid passes through
Input duct is sent into first settling tank, but when radar level gauge detects liquid level signal, and the first valve on the settling tank closes
It closes, the first valve opening on next settling tank, waste liquid continues to be fed into next settling tank, until the last one settling tank liquid
Man Hou, pneumatic diaphragm pump are closed；
C, the sedimentation time is arranged by touch screen, after the time reaches, the second valve on first settling tank is opened, will be internal
The acid solution precipitated drains into acid purification system processing, and after liquid level sensor detects liquid level signal, the second of the settling tank
Valve is closed, third valve and the pump housing are opened, while the second valve opening of next settling tank, at this time next settling tank
Acid solution continues to be fed into acid purification system, and the precipitation slag in previous settling tank is then sent into filter press and is continued with；
D, after the completion of acid solution in the last one settling tank and precipitating Slag treatment, repeat the above steps b ~ c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946412.2A CN109045773A (en) | 2018-08-20 | 2018-08-20 | A kind of acid precipitation process system and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946412.2A CN109045773A (en) | 2018-08-20 | 2018-08-20 | A kind of acid precipitation process system and processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109045773A true CN109045773A (en) | 2018-12-21 |
Family
ID=64687341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810946412.2A Pending CN109045773A (en) | 2018-08-20 | 2018-08-20 | A kind of acid precipitation process system and processing method |
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| Country | Link |
|---|---|
| CN (1) | CN109045773A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898471A (en) * | 2019-12-11 | 2020-03-24 | 广州发展燃料港口有限公司 | Distributed coal water scheduling method and system |
| CN112774262A (en) * | 2020-10-13 | 2021-05-11 | 董正中 | Standing device and method used in process of producing vehicle urea |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030070552A1 (en) * | 2001-10-12 | 2003-04-17 | Chih-Ming Lee | Waste gas treating device |
| JP2004042007A (en) * | 2002-07-12 | 2004-02-12 | Etou Seisakusho:Kk | Method of recovering decomposed gas of chlorofluorocarbon gas |
| CN101274786A (en) * | 2007-03-30 | 2008-10-01 | 旭化成化学株式会社 | Water treatment apparatus and water treatment method |
| KR100940225B1 (en) * | 2009-05-07 | 2010-02-04 | (주)정봉 | Biofilter for purifying malodor and malodor purifying system comprising the same |
| CN103993447A (en) * | 2014-05-13 | 2014-08-20 | 通华玻纤复合材料(上海)有限公司 | Acid-washing system for alkali-free fiberglass fabrics |
| CN106927556A (en) * | 2017-03-28 | 2017-07-07 | 天津泰达环保有限公司 | A kind of method of electrolysis advanced treatment of landfill leachate |
| CN106975323A (en) * | 2017-04-06 | 2017-07-25 | 西安石油大学 | One kind failure selexol process regenerative device of solution |
| CN107265584A (en) * | 2017-06-27 | 2017-10-20 | 福建甬金金属科技有限公司 | A kind of recovery system and method for steel mixing pickle liquor |
-
2018
- 2018-08-20 CN CN201810946412.2A patent/CN109045773A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030070552A1 (en) * | 2001-10-12 | 2003-04-17 | Chih-Ming Lee | Waste gas treating device |
| JP2004042007A (en) * | 2002-07-12 | 2004-02-12 | Etou Seisakusho:Kk | Method of recovering decomposed gas of chlorofluorocarbon gas |
| CN101274786A (en) * | 2007-03-30 | 2008-10-01 | 旭化成化学株式会社 | Water treatment apparatus and water treatment method |
| KR100940225B1 (en) * | 2009-05-07 | 2010-02-04 | (주)정봉 | Biofilter for purifying malodor and malodor purifying system comprising the same |
| CN103993447A (en) * | 2014-05-13 | 2014-08-20 | 通华玻纤复合材料(上海)有限公司 | Acid-washing system for alkali-free fiberglass fabrics |
| CN106927556A (en) * | 2017-03-28 | 2017-07-07 | 天津泰达环保有限公司 | A kind of method of electrolysis advanced treatment of landfill leachate |
| CN106975323A (en) * | 2017-04-06 | 2017-07-25 | 西安石油大学 | One kind failure selexol process regenerative device of solution |
| CN107265584A (en) * | 2017-06-27 | 2017-10-20 | 福建甬金金属科技有限公司 | A kind of recovery system and method for steel mixing pickle liquor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898471A (en) * | 2019-12-11 | 2020-03-24 | 广州发展燃料港口有限公司 | Distributed coal water scheduling method and system |
| CN112774262A (en) * | 2020-10-13 | 2021-05-11 | 董正中 | Standing device and method used in process of producing vehicle urea |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |
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| RJ01 | Rejection of invention patent application after publication |