CN110015669A - A kind of sodium bicarbonate preparation method and equipment - Google Patents
A kind of sodium bicarbonate preparation method and equipment Download PDFInfo
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- CN110015669A CN110015669A CN201910111221.9A CN201910111221A CN110015669A CN 110015669 A CN110015669 A CN 110015669A CN 201910111221 A CN201910111221 A CN 201910111221A CN 110015669 A CN110015669 A CN 110015669A
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- tube
- spirally twisted
- twisted flat
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/10—Preparation of bicarbonates from carbonates
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Abstract
The invention proposes a kind of sodium bicarbonate Preparation equipments, including dissolving tank, fluid reservoir, carbon dioxide air accumulator, spirally twisted flat-tube, crystallizing tank, centrifuge and pneumatic drier；Dissolving tank is connected to by the first catheter with the inlet of fluid reservoir, spirally twisted flat-tube is horizontally disposed, the feed inlet of spirally twisted flat-tube is connected to the gas outlet of the liquid outlet of fluid reservoir, carbon dioxide air accumulator respectively by the second catheter, the first gas-guide tube, second catheter is equipped with infusion pump, first gas-guide tube is equipped with gasing pump, the liquid outlet of spirally twisted flat-tube is connected to by third catheter with the inlet of crystallizing tank, the liquid outlet of crystallizing tank is connected to by the 4th catheter with centrifuge, and the solid outlet of centrifuge is connected to pneumatic drier.The present invention solves material deposition, hardened, blocking, and material carbonization does not deposit, and equipment self-purification capacity and production efficiency improve, and simplify process units and operation, easy to maintain, is suitble to industrial production.
Description
Technical field
The present invention relates to sodium bicarbonate preparation technical field more particularly to a kind of sodium bicarbonate preparation methods and equipment.
Background technique
Medicinal sodium bicarbonate industrial production is to do using sodium carbonate, carbon dioxide as raw material through dissolution, carbonization, centrifugation, air-flow
It is dry and obtain, wherein carbonization is completed in carbonators, and the aqueous sodium carbonate of heating for dissolving flows into tower body by tower top, while from
Tower bottom is passed through carbon dioxide pressurized, occurs carburizing reagent in the middle part of tower body, reaction solution from tower bottom it is cooling after flow out separation.Existing skill
In order to improve reaction efficiency in art, increases gas liquid interfacial area, be provided with stratiform spacer in carbonators, gas-liquid is on spacer
Sodium bicarbonate is reacted and be precipitated, be easy to cause material deposit, is hardened, influences gas-liquid mass transfer, need to periodically stop production cleaning, to ensure to give birth to
Production is normally carried out, and industrially generally uses more carbonators cross-references, and investment is big, and device resource occupancy is high, and operates not
Convenient, cost of equipment maintenance is high.
Summary of the invention
Based on technical problem present in background technique, the invention proposes a kind of sodium bicarbonate preparation method and equipment.
A kind of sodium bicarbonate Preparation equipment proposed by the present invention, including dissolving tank, fluid reservoir, carbon dioxide air accumulator, spiral shell
Revolve twisted oval tube, crystallizing tank, centrifuge and pneumatic drier；Dissolving tank is connected by the inlet of the first catheter and fluid reservoir
Logical, spirally twisted flat-tube is horizontally disposed, the feed inlet of spirally twisted flat-tube by the second catheter, the first gas-guide tube respectively with storage
The gas outlet connection of the liquid outlet, carbon dioxide air accumulator of flow container, the second catheter are equipped with infusion pump, set on the first gas-guide tube
There is gasing pump, the liquid outlet of spirally twisted flat-tube is connected to by third catheter with the inlet of crystallizing tank, and crystallizing tank goes out liquid
Mouth is connected to by the 4th catheter with centrifuge, and the solid outlet of centrifuge is connected to pneumatic drier.
Preferably, rabbling mechanism is equipped in dissolving tank, and the whipping temp of dissolving tank is 40 DEG C -60 DEG C.
Preferably, spirally twisted flat-tube uses general stainless steel material, and the cross-sectional shape of spirally twisted flat-tube is oblate
Or ellipse.
Preferably, the short axle d1 of spirally twisted flat-tube and its long axis d2 ratio are 0.3-0.5, the screw pitch of spirally twisted flat-tube with
Its equivalent diameter ratio is 3-30.
It preferably, further include condenser and carbon-dioxide gas compressor, the air inlet of condenser passes through the second gas-guide tube and knot
The gas outlet of brilliant tank is connected to, and the gas outlet of condenser is connected to by third gas-guide tube with the air inlet of carbon-dioxide gas compressor, and two
The gas outlet of carbonoxide compressor is connected to by the 4th gas-guide tube with the air inlet of carbon dioxide air accumulator.
It preferably, further include disposing mother liquor tank, the inlet of disposing mother liquor tank is gone out by the 5th catheter and condenser
The liquid outlet of the connection of liquid mouth, disposing mother liquor tank is connected to by the 6th catheter with the inlet of dissolving tank.
A kind of preparation method of sodium bicarbonate, comprising the following steps:
S1, sodium carbonate solid and purified water are added into dissolving tank, the residence time controls in 0.1-0.3h, wherein dissolution
Tank holding is stirred continuously, and then the sodium carbonate liquor that dissolution obtains is transferred in fluid reservoir；
S2, the carbon dioxide in carbon dioxide air accumulator is passed through in spirally twisted flat-tube through gasing pump, while through being infused
Pump is by sodium carbonate liquor input spirally twisted flat-tube, sodium carbonate liquor and carbon dioxide are in spirally twisted flat-tube in fluid reservoir
It sufficiently reacts and is fully flowed into air-flow and carry out sedimentation crystallization in crystallizing tank；
S3, it the liquid in crystallizing tank is transferred in centrifuge is centrifuged, isolated solid is transferred to gas
It is dried in stream drying machine.
Preferably, in S1, the whipping temp of dissolving tank is 40 DEG C -60 DEG C；Preferably, the sodium carbonate liquor matter that S1 is obtained
Amount percentage composition is 40%-50%.
Preferably, in S2, pressure carbon dioxide 0.1-0.3MPa.
Preferably, in S3, the drying temperature of pneumatic drier is 110 DEG C -140 DEG C.
A kind of sodium bicarbonate Preparation equipment proposed by the present invention, is passed through a Duan Shuiping for aqueous sodium carbonate and carbon dioxide
After the spirally twisted flat-tube of installation, sodium carbonate and carbon dioxide quickly flow hybrid reaction in pipeline, tubular crystallizing tank is introduced
In, it settled, be centrifugated sodium bicarbonate, remaining mother liquor, excess carbon dioxide and evaporation water recycle after line collection.
The present invention solves material deposition, hardened, blocking, and the carbon dioxide of aqueous sodium carbonate and pressurization is passed through one section and is horizontally mounted
Spirally twisted flat-tube after quickly flowing hybrid reaction in pipeline, flows into tubular crystallizing tank, natural subsidence separation, material carbon
Change does not deposit, and equipment self-purification capacity and production efficiency improve, and simplify process units and operation, easy to maintain, is suitble to industrial production.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of sodium bicarbonate Preparation equipment proposed by the present invention；
Fig. 2 is the sectional view of spirally twisted flat-tube in a kind of sodium bicarbonate Preparation equipment proposed by the present invention；
Fig. 3 is the sectional view of spirally twisted flat-tube in a kind of sodium bicarbonate Preparation equipment proposed by the present invention.
Specific embodiment
- Fig. 3 referring to Fig.1, the present invention propose a kind of sodium bicarbonate Preparation equipment, including dissolving tank 1, fluid reservoir 2, titanium dioxide
Carbon air accumulator 3, spirally twisted flat-tube 4, crystallizing tank 5, centrifuge 6, pneumatic drier 7, condenser 10, carbon-dioxide gas compressor 11
With disposing mother liquor tank 12；Wherein:
Dissolving tank 1 is connected to by the first catheter with the inlet of fluid reservoir 2, and rabbling mechanism, spiral are equipped in dissolving tank 1
Twisted oval tube 4 is horizontally disposed, the feed inlet of spirally twisted flat-tube 4 by the second catheter, the first gas-guide tube respectively with fluid reservoir 2
Liquid outlet, carbon dioxide air accumulator 3 gas outlet connection, the second catheter is equipped with infusion pump 8, and the first gas-guide tube is equipped with
The liquid outlet of gasing pump 9, spirally twisted flat-tube 4 is connected to by third catheter with the inlet of crystallizing tank 5, and crystallizing tank 5 goes out
Liquid mouth is connected to by the 4th catheter with centrifuge 6, and the solid outlet of centrifuge 6 is connected to pneumatic drier 7.Condenser 10
Air inlet is connected to by the second gas-guide tube with the gas outlet of crystallizing tank 5, and the gas outlet of condenser 10 passes through third gas-guide tube and two
The air inlet of carbonoxide compressor 11 is connected to, and the gas outlet of carbon-dioxide gas compressor 11 is stored up by the 4th gas-guide tube and carbon dioxide
The air inlet of gas tank 3 is connected to.The inlet of disposing mother liquor tank 12 is connected to by the 5th catheter with the liquid outlet of condenser 10, female
The liquid outlet of liquid recycling can 12 is connected to by the 6th catheter with the inlet of dissolving tank 1.
In the present embodiment, spirally twisted flat-tube 4 uses general stainless steel material, the cross-sectional shape of spirally twisted flat-tube 4
To be oblate or oval, the short axle d1 and its long axis d2 ratio of spirally twisted flat-tube 4 are 0.3-0.5, the screw pitch of spirally twisted flat-tube 4
It is 3-30 with its equivalent diameter ratio.
The present invention also proposes a kind of sodium bicarbonate preparation method, comprising the following steps:
S1, sodium carbonate solid and purified water are added into dissolving tank 1, the residence time controls in 0.1-0.3h, wherein dissolution
The holding of tank 1 is stirred continuously, and whipping temp is 40 DEG C -60 DEG C, and the mass percentage for then obtaining dissolution is 40%-50%'s
Sodium carbonate liquor is transferred in fluid reservoir 2；
Carbon dioxide in S2, the carbon dioxide air accumulator 3 for being 0.1-0.3MPa by pressure through gasing pump 9 is passed through spiral torsional
In bent flat tube 4, at the same through infusion pump 8 by fluid reservoir 2 sodium carbonate liquor input spirally twisted flat-tube 4 in, sodium carbonate liquor with
Carbon dioxide, which is sufficiently reacted in spirally twisted flat-tube 4 and fully flowed into air-flow, carries out sedimentation crystallization in crystallizing tank 5；
S3, it the liquid in crystallizing tank 5 is transferred in centrifuge 6 is centrifuged, isolated solid is transferred to
It is dried in pneumatic drier 7, the drying temperature of pneumatic drier 7 is 110 DEG C -140 DEG C.
Aqueous sodium carbonate and carbon dioxide are passed through one section of spirally twisted flat-tube being horizontally mounted 4, sodium carbonate by the present invention
It after quickly flowing hybrid reaction in pipeline with carbon dioxide, is introduced into tubular crystallizing tank 5, is settled, is centrifugated bicarbonate
Sodium, remaining mother liquor, excess carbon dioxide and evaporation water recycle after line collection.The present invention solves material deposition, plate
The carbon dioxide of knot, blocking, aqueous sodium carbonate and pressurization is passed through one section of spirally twisted flat-tube being horizontally mounted, fast in pipeline
Speed flowing hybrid reaction after, flow into tubular crystallizing tank in, natural subsidence separation, material carbonization do not deposit, equipment self-purification capacity and
Production efficiency improves, and simplifies process units and operation, easy to maintain, is suitble to industrial production.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of sodium bicarbonate Preparation equipment, which is characterized in that including dissolving tank (1), fluid reservoir (2), carbon dioxide air accumulator
(3), spirally twisted flat-tube (4), crystallizing tank (5), centrifuge (6) and pneumatic drier (7)；Dissolving tank (1) passes through the first drain
Pipe is connected to the inlet of fluid reservoir (2), and spirally twisted flat-tube (4) is horizontally disposed, and the feed inlet of spirally twisted flat-tube (4) passes through
Second catheter, the first gas-guide tube are connected to the gas outlet of the liquid outlet of fluid reservoir (2), carbon dioxide air accumulator (3) respectively, the
Two catheters are equipped with infusion pump (8), and the first gas-guide tube is equipped with gasing pump (9), and the liquid outlet of spirally twisted flat-tube (4) passes through
Third catheter is connected to the inlet of crystallizing tank (5), and the liquid outlet of crystallizing tank (5) passes through the 4th catheter and centrifuge (6)
Connection, the solid outlet of centrifuge (6) are connected to pneumatic drier (7).
2. sodium bicarbonate Preparation equipment according to claim 1, which is characterized in that rabbling mechanism is equipped in dissolving tank (1),
And the whipping temp of dissolving tank (1) is 40 DEG C -60 DEG C.
3. sodium bicarbonate Preparation equipment according to claim 1, which is characterized in that spirally twisted flat-tube (4) is using general
Stainless steel material, the cross-sectional shape of spirally twisted flat-tube (4) are oblate or oval.
4. sodium bicarbonate Preparation equipment according to claim 3, which is characterized in that the short axle d1 of spirally twisted flat-tube (4)
It is 0.3-0.5 with its long axis d2 ratio, the screw pitch of spirally twisted flat-tube (4) and its equivalent diameter ratio are 3-30.
5. sodium bicarbonate Preparation equipment described in any one of -4 according to claim 1, which is characterized in that further include condenser
(10) and carbon-dioxide gas compressor (11), the air inlet of condenser (10) pass through the gas outlet of the second gas-guide tube and crystallizing tank (5)
The gas outlet of connection, condenser (10) is connected to by third gas-guide tube with the air inlet of carbon-dioxide gas compressor (11), titanium dioxide
The gas outlet of carbon compressor (11) is connected to by the 4th gas-guide tube with the air inlet of carbon dioxide air accumulator (3).
6. sodium bicarbonate Preparation equipment according to claim 5, which is characterized in that it further include disposing mother liquor tank (12), it is female
The inlet of liquid recycling can (12) is connected to by the 5th catheter with the liquid outlet of condenser (10), and disposing mother liquor tank (12) goes out
Liquid mouth is connected to by the 6th catheter with the inlet of dissolving tank (1).
7. a kind of preparation method using the sodium bicarbonate such as Preparation equipment of any of claims 1-6, feature
It is, comprising the following steps:
S1, sodium carbonate solid and purified water are added into dissolving tank (1), the residence time controls in 0.1-0.3h, wherein dissolving tank
(1) it keeps being stirred continuously, then the sodium carbonate liquor that dissolution obtains is transferred in fluid reservoir (2)；
S2, the carbon dioxide in carbon dioxide air accumulator (3) is passed through in spirally twisted flat-tube (4) through gasing pump (9), is passed through simultaneously
Infusion pump (8) is by sodium carbonate liquor input spirally twisted flat-tube (4), sodium carbonate liquor and carbon dioxide exist in fluid reservoir (2)
It sufficiently reacts in spirally twisted flat-tube (4) and is fully flowed into crystallizing tank (5) with air-flow and carry out sedimentation crystallization；
S3, it the liquid in crystallizing tank (5) is transferred in centrifuge (6) is centrifuged, isolated solid is transferred to
Pneumatic drier is dried in (7).
8. the preparation method of sodium bicarbonate according to claim 7, which is characterized in that in S1, the stirring of dissolving tank (1)
Temperature is 40 DEG C -60 DEG C；Preferably, the sodium carbonate liquor mass percentage that S1 is obtained is 40%-50%.
9. the preparation method of sodium bicarbonate according to claim 7, which is characterized in that in S2, pressure carbon dioxide is
0.1-0.3MPa。
10. the preparation method of sodium bicarbonate according to claim 7, which is characterized in that in S3, pneumatic drier (7)
Drying temperature be 110 DEG C -140 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111221.9A CN110015669B (en) | 2019-02-12 | 2019-02-12 | Sodium bicarbonate preparation method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111221.9A CN110015669B (en) | 2019-02-12 | 2019-02-12 | Sodium bicarbonate preparation method and equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110015669A true CN110015669A (en) | 2019-07-16 |
| CN110015669B CN110015669B (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910111221.9A Active CN110015669B (en) | 2019-02-12 | 2019-02-12 | Sodium bicarbonate preparation method and equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076425A (en) * | 1993-04-17 | 1993-09-22 | 郑州工学院 | Active sodium bicarbonate and manufacture method thereof |
| CN103183369A (en) * | 2011-12-28 | 2013-07-03 | 北京有色金属研究总院 | Apparatus and method for pipeline continuous carbonization of calcium and magnesium |
| CN103601227A (en) * | 2013-09-11 | 2014-02-26 | 宜兴天力化工纳米科技有限公司 | Pre-nucleation reactor of nanometer calcium carbonate and preparation technology of the nanometer calcium carbonate |
| CN108358220A (en) * | 2018-03-07 | 2018-08-03 | 武汉德泽环保科技有限公司 | A kind of method and apparatus producing sodium bicarbonate |
| CN108726542A (en) * | 2018-09-04 | 2018-11-02 | 北京烨晶科技有限公司 | The production method and production equipment of sodium bicarbonate |
-
2019
- 2019-02-12 CN CN201910111221.9A patent/CN110015669B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076425A (en) * | 1993-04-17 | 1993-09-22 | 郑州工学院 | Active sodium bicarbonate and manufacture method thereof |
| CN103183369A (en) * | 2011-12-28 | 2013-07-03 | 北京有色金属研究总院 | Apparatus and method for pipeline continuous carbonization of calcium and magnesium |
| CN103601227A (en) * | 2013-09-11 | 2014-02-26 | 宜兴天力化工纳米科技有限公司 | Pre-nucleation reactor of nanometer calcium carbonate and preparation technology of the nanometer calcium carbonate |
| CN108358220A (en) * | 2018-03-07 | 2018-08-03 | 武汉德泽环保科技有限公司 | A kind of method and apparatus producing sodium bicarbonate |
| CN108726542A (en) * | 2018-09-04 | 2018-11-02 | 北京烨晶科技有限公司 | The production method and production equipment of sodium bicarbonate |
Non-Patent Citations (1)
| Title |
|---|
| 唐振球等: "《化工小商品生产法》", 30 April 1980, 湖南科学技术出版社 * |
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