CN106621427A - Cold evaporation purifying system for by-product hydrochloric acid - Google Patents
Cold evaporation purifying system for by-product hydrochloric acid Download PDFInfo
- Publication number
- CN106621427A CN106621427A CN201611157744.XA CN201611157744A CN106621427A CN 106621427 A CN106621427 A CN 106621427A CN 201611157744 A CN201611157744 A CN 201611157744A CN 106621427 A CN106621427 A CN 106621427A
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- CN
- China
- Prior art keywords
- reactor
- hydrochloric acid
- product
- reaction kettle
- acid solution
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- 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
- C01B7/0712—Purification ; Separation of hydrogen chloride by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a cold evaporation purifying system for a by-product hydrochloric acid. The cold evaporation purifying system comprises a first reaction kettle, a second reaction kettle, a first connection pipeline, a second connection pipeline and a third reaction kettle; a hydrochloric acid liquid inlet pipe is connected with the first reaction kettle, the second reaction kettle and the third reaction kettle through a hydrochloric acid liquid conveying pipe; a by-product HCl gas inlet pipe is connected to a by-product HCl gas conveying pipe, the right end of the by-product HCl gas conveying pipe is inserted into the first reaction kettle; the right end of the by-product HCl gas conveying pipe is soaked in a hydrochloric acid liquid in the first reaction kettle; the first reaction kettle is connected to the second reaction kettle through the first connection pipeline; the right end of the first connection pipeline is soaked into the hydrochloric acid liquid in the second reaction kettle; the second reaction kettle is connected to the third reaction kettle through the second connection pipeline; and the right end of the second connection pipeline is soaked into the hydrochloric acid liquid in the third reaction kettle. The cold evaporation purifying system improves the quality of the by-product hydrochloric acid, and moreover, the element, exceeding the standard, in the by-product hydrochloric acid is also effectively removed, so that the by-product hydrochloric acid reaches the standard of a synthetic hydrochloric acid.
Description
Technical field
The present invention relates to a kind of chemical industry equipment, the cold evaporation purification system of specifically a kind of by-product hydrochloric acid.
Background technology
The technique of existing hydrochloric acid purification is usually heating evaporation purification, there is electrical heating, steam heating, coal heating etc., is adopted
There is following drawback in hydrochloric acid evaporation purifying technique：1) hydrochloric acid heating purification when because temperature controlled unstable so that other are led
Cause the underproof molecule of hydrochloric acid also can together evaporate, cause the decline of hydrochloric acid quality, so it is unqualified；2) using heating purification
High cost, yield poorly and substantial amounts of watery hydrochloric acid (30%-50%) can be formed, to enterprise financial burden is caused.
The content of the invention
It is an object of the invention to provide a kind of cold evaporation purification system of by-product hydrochloric acid, to solve above-mentioned background technology in carry
The problem for going out.
For achieving the above object, the present invention provides following technical scheme：
A kind of cold evaporation purification system of by-product hydrochloric acid, including the first reactor, the second reactor, the first connecting pipe,
Two connecting pipes, hydrochloric acid solution inlet tube, the 3rd reactor, hydrochloric acid delivery pipe, by-product HCl air shooters and absorber entrance
Pipe, the hydrochloric acid solution inlet tube is respectively connecting to the first reactor, the second reactor and the 3rd reaction by hydrochloric acid solution delivery pipe
Kettle；The by-product HCl gas inlet pipes are connected to by-product HCl air shooters, and by-product HCl air shooter right-hand members are inserted into
One reactor, the by-product HCl air shooter right-hand members are immersed in the hydrochloric acid solution in the first reactor；First reactor
Second reactor is connected to by the first connecting pipe, the right-hand member of the first connecting pipe is immersed in the hydrochloric acid solution in the second reactor
It is interior；Second reactor is connected to the 3rd reactor by the second connecting pipe, and the right-hand member of the second connecting pipe is immersed in
In hydrochloric acid solution in three reactors；3rd reactor is connected to absorber inlet tube, absorber entrance by conveyance conduit
Pipe is arranged on graphitic absorber.
As further scheme of the invention：First reactor, the second reactor and the 3rd reactor top are all provided with
Emptying pipeline is equipped with, the emptying pipeline is respectively connecting to corresponding first reactor, the second reactor and by magnetic valve
Three reactors.
As further scheme of the invention：First reactor, the second reactor and the 3rd reactor bottom are equal
Waste hydrochloric acid liquor conveyance conduit is connected to, waste hydrochloric acid liquor conveyance conduit is connected to waste hydrochloric acid liquor outlet.
Compared with prior art, the invention has the beneficial effects as follows：
The present invention improves the quality of by-product hydrochloric acid and also improves added value, increased the benefit of manufacturing enterprise.Simultaneously
Also the exceeded element in by-product hydrochloric acid is effectively eliminated, makes by-product hydrochloric acid reach the standard of synthetic hydrochloric acid.Solve rare earth, metallurgy
Deng the problem that enterprise's acceptable material is not enough.
Description of the drawings
Fig. 1 is the structural representation of the cold evaporation purification system of by-product hydrochloric acid.
In figure：1- hydrochloric acid solution inlet tubes, the reactors of 2- first, the reactors of 3- second, the reactors of 4- the 3rd, 5- waste hydrochloric acid liquors
Outlet, 6- hydrochloric acid solution delivery pipes, 7- by-product HCl gas inlet pipes, 8- by-product HCl air shooters, 9- absorber inlet tubes,
10- empties pipeline, the connecting pipes of 11- first, the connecting pipes of 12- second, 13- conveyance conduits.
Specific embodiment
Technical scheme is described in more detail with reference to specific embodiment.
Refer to Fig. 1, a kind of cold evaporation purification system of by-product hydrochloric acid, including the first reactor 2, the second reactor 3, first
Connecting pipe 11, the second connecting pipe 12, hydrochloric acid solution inlet tube 1, the 3rd reactor 4, hydrochloric acid delivery pipe 6, by-product HCl gases are defeated
Send pipe 8 and absorber inlet tube 9, the hydrochloric acid solution inlet tube 1 by hydrochloric acid solution delivery pipe 6 be respectively connecting to the first reactor 2,
Second reactor 3 and the 3rd reactor 4；Concentration is that 31% hydrochloric acid solution enters into hydrochloric acid solution conveying by hydrochloric acid solution inlet tube 1
Pipe 6, then pours into respectively the first reactor 2, the second reactor 3 and the 3rd reactor 4；
The by-product HCl gas inlet pipes 7 are connected to by-product HCl air shooters 8, the right-hand member of by-product HCl air shooters 8
The first reactor 2 is inserted into, the right-hand member of by-product HCl air shooters 8 is immersed in the hydrochloric acid solution in the first reactor 2；It is described
First reactor 2 is connected to the second reactor 3 by the first connecting pipe 11, and the right-hand member of the first connecting pipe 11 is immersed in second
In the hydrochloric acid solution of reactor 3；Second reactor 3 is connected to the 3rd reactor 4, the second connection by the second connecting pipe 12
The right-hand member of pipeline 12 is immersed in the hydrochloric acid solution in the 3rd reactor 4；3rd reactor 4 is connected to by conveyance conduit 13
Absorber inlet tube 9, absorber inlet tube 9 is arranged on graphitic absorber, and the gas of saturation evaporation enters back into graphitic absorber
With pure water synthetic hydrochloric acid.First reactor 2, the second reactor 3 and the top of the 3rd reactor 4 are provided with emptying pipeline
10, the emptying pipeline 10 connects corresponding first reactor 2, the second reactor 3 and the 3rd reactor 4 by magnetic valve；
First reactor 2, the second reactor 3 and the bottom of the 3rd reactor 4 are connected to waste hydrochloric acid liquor conveyance conduit, abraum salt
Acid liquor delivery pipe road is connected to waste hydrochloric acid liquor outlet 5；
The present invention operation principle be：
Open the first reactor 2, the second reactor 3 emptying pipeline corresponding with the top of the 3rd reactor 4 respectively first
10, concentration is that 31% hydrochloric acid solution has respectively entered the first reactor 2, the second reactor 3 and the 3rd by hydrochloric acid solution inlet tube 1
Reactor 4, then closes respectively the first reactor 2, the second reactor 3 emptying pipeline corresponding with the top of the 3rd reactor 4
10, by the by-product HCl gases for producing in process of production, directly by-product HCl gas is entered into by by-product HCl gas inlet pipes 7
Body delivery pipe 8, during the first reactor 2 for filling 31% hydrochloric acid solution is entered under the conveying of by-product HCl air shooters 8, makes
Hydrochloric acid saturation evaporation in first reactor 2, the HCl gases of saturation evaporation immerse the second reactor 3 by the first connecting tube 11 again
Hydrochloric acid solution liquid level below, evaporate the hydrochloric acid saturation in the second reactor 3, saturation evaporation HCl gases again pass through second
Below the hydrochloric acid solution liquid level that connecting tube 12 is immersed in the 3rd reactor 4, evaporate the hydrochloric acid saturation in the 3rd reactor 4, saturation
The HCl gases of evaporation are entered finally into graphitic absorber again by conveyance conduit 13 into absorber inlet tube 9, and graphite is inhaled
Receive the pure water synthetic hydrochloric acid in device.Produce the hydrochloric acid of GB 320-2006.Saturated salt acid group in reactor is regular more according to yield
Change, to change and open the first reactor 2, the second reactor 3 row corresponding with the top of the 3rd reactor 4 respectively first before hydrochloric acid
Vacant duct 10, then opens respectively the valve of the first reactor 2, the second reactor 3 and the bottom of the 3rd reactor 4, waste hydrochloric acid liquor
Waste hydrochloric acid liquor delivery pipe is flowed into, then waste hydrochloric acid liquor waste hydrochloric acid liquor outlet 5 is transported into and is discharged.
The better embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can be with the premise of without departing from present inventive concept
Various changes can be made.
Claims (3)
1. the cold evaporation purification system of a kind of by-product hydrochloric acid, it is characterised in that including the first reactor (2), the second reactor (3),
First connecting pipe (11), the second connecting pipe (12), hydrochloric acid solution inlet tube (1), the 3rd reactor (4), hydrochloric acid delivery pipe
(6), by-product HCl air shooters (8) and absorber inlet tube (9), the hydrochloric acid solution inlet tube (1) is by hydrochloric acid solution delivery pipe
(6) the first reactor (2), the second reactor (3) and the 3rd reactor (4) are respectively connecting to；The by-product HCl gas inlet pipes
(7) by-product HCl air shooters (8) is connected to, by-product HCl air shooters (8) right-hand member is inserted into the first reactor (2), institute
State by-product HCl air shooters (8) right-hand member to be immersed in the hydrochloric acid solution in the first reactor (2)；First reactor (2) is led to
Cross the first connecting pipe (11) and be connected to the second reactor (3), the right-hand member of the first connecting pipe (11) is immersed in the second reactor
(3) in the hydrochloric acid solution in；Second reactor (3) is connected to the 3rd reactor (4) by the second connecting pipe (12), and second
The right-hand member of connecting pipe (12) is immersed in the hydrochloric acid solution in the 3rd reactor (4)；3rd reactor (4) is by delivery pipe
Road (13) is connected to absorber inlet tube (9), and absorber inlet tube (9) is arranged on graphitic absorber.
2. the cold evaporation purification system of by-product hydrochloric acid according to claim 1, it is characterised in that first reactor (2),
Second reactor (3) and the 3rd reactor (4) top are provided with emptying pipeline (10), and emptying pipeline (10) is by electromagnetism
Valve is respectively connecting to corresponding first reactor (2), the second reactor (3) and the 3rd reactor (4).
3. the cold evaporation purification system of by-product hydrochloric acid according to claim 1, it is characterised in that first reactor (2),
Second reactor (3) and the 3rd reactor (4) bottom are connected to waste hydrochloric acid liquor conveyance conduit, the connection of waste hydrochloric acid liquor conveyance conduit
To waste hydrochloric acid liquor outlet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157744.XA CN106621427A (en) | 2016-12-08 | 2016-12-08 | Cold evaporation purifying system for by-product hydrochloric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157744.XA CN106621427A (en) | 2016-12-08 | 2016-12-08 | Cold evaporation purifying system for by-product hydrochloric acid |
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| Publication Number | Publication Date |
|---|---|
| CN106621427A true CN106621427A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611157744.XA Pending CN106621427A (en) | 2016-12-08 | 2016-12-08 | Cold evaporation purifying system for by-product hydrochloric acid |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311053A (en) * | 2000-03-03 | 2001-09-05 | 北京清华紫光英力化工技术有限责任公司 | Refining and recovering process for industrial by-product halogen hydride gas |
| CN201324588Y (en) * | 2008-12-08 | 2009-10-14 | 江阴苏利化学有限公司 | Hydrogen chloride gas absorption system |
| CN101723327A (en) * | 2009-12-01 | 2010-06-09 | 张再明 | Hydrochloric acid absorption tower and process for producing hydrochloric acid for production |
| CN102302890A (en) * | 2011-04-29 | 2012-01-04 | 苏州市吴赣药业有限公司 | Hydrogen chloride gas circulating recovery system |
-
2016
- 2016-12-08 CN CN201611157744.XA patent/CN106621427A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311053A (en) * | 2000-03-03 | 2001-09-05 | 北京清华紫光英力化工技术有限责任公司 | Refining and recovering process for industrial by-product halogen hydride gas |
| CN201324588Y (en) * | 2008-12-08 | 2009-10-14 | 江阴苏利化学有限公司 | Hydrogen chloride gas absorption system |
| CN101723327A (en) * | 2009-12-01 | 2010-06-09 | 张再明 | Hydrochloric acid absorption tower and process for producing hydrochloric acid for production |
| CN102302890A (en) * | 2011-04-29 | 2012-01-04 | 苏州市吴赣药业有限公司 | Hydrogen chloride gas circulating recovery system |
Non-Patent Citations (1)
| Title |
|---|
| 姜信真: "《化工生产基础知识》", 30 September 1983, 化学工业出版社 * |
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Application publication date: 20170510 |