CN206799176U - A kind of pyrosulfurous acid mother liquid of sodium reclaiming system - Google Patents
A kind of pyrosulfurous acid mother liquid of sodium reclaiming system Download PDFInfo
- Publication number
- CN206799176U CN206799176U CN201720594066.7U CN201720594066U CN206799176U CN 206799176 U CN206799176 U CN 206799176U CN 201720594066 U CN201720594066 U CN 201720594066U CN 206799176 U CN206799176 U CN 206799176U
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- CN
- China
- Prior art keywords
- sodium
- mother liquor
- storage tank
- molten slurry
- reclaiming system
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- 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.)
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Abstract
The utility model discloses a kind of pyrosulfurous acid mother liquid of sodium reclaiming system, including centrifugal filter, mother liquor tank, hot water storage tank, molten slurry device, screw feeder and alkali lye storage tank.Sodium pyrosulfite product is completed mother liquor through centrifugal filter and is sufficiently separated with what is crystallized, and mother liquor completes secondary filter through mother liquor tank, and into molten slurry device dissolving soda ash, soda ash solution is via the return reactor participation reaction of alkali lye storage tank.The utility model mother liquor reuse effect is good, and crystallization and impurity less residue, choline speed is fast, and benign cycle is realized while energy-saving and emission-reduction.
Description
Technical field
The utility model belongs to Recycle Technology of Waste Water field, and in particular to a kind of pyrosulfurous acid mother liquid of sodium reclaiming system.
Background technology
Sodium pyrosulfite is a kind of important reducing agent, industrially typically produces sodium pyrosulfite with wet processing：By SO2
Counter current contacting, generation sodium hydrogensulfite, sodium hydrogensulfite dehydration separate out burnt sulfurous in thtee-stage shiplock reactor with soda ash solution
Sour sodium crystal, centrifugation drying finished product.Substantial amounts of mother liquor can be produced while crystallization, there are a large amount of reaction intermediates in mother liquor
Sodium sulfite and sodium hydrogensulfite, mother liquor reuse can accelerate crystallization speed, while save raw material and reduce discharging of waste liquid.
The slurries containing crystallization in existing process generally by reactor discharge are centrifuged, and mother liquor, which returns to choline bucket, to be continued
As reaction raw materials, but the device systems of the mother liquor reuse rare refer to.
Utility model content
The utility model aims to provide a kind of pyrosulfurous acid mother liquid of sodium reclaiming system, crystal and mother liquor good separating effect, returns
Residue of mother crystallizes and impurity is few, effectively prevents line clogging, mother liquor can be made full use of, and realize energy-saving and emission-reduction.
To reach above-mentioned purpose, the concrete technical scheme that the utility model uses is as follows：
A kind of pyrosulfurous acid mother liquid of sodium reclaiming system, including centrifugal filter, mother liquor tank, hot water storage tank, molten slurry device, spiral
Feeder and alkali lye storage tank.Centrifugal filter, mother liquor tank, molten slurry device and alkali lye storage tank pass sequentially through pipeline connection, centrifugal filtration
Coupled at the top of device by pipeline with product transfer kettle, mother liquor tank on the pipeline branch road of molten slurry device with being connected with hot water storage tank, molten slurry device
Charging aperture is connected with screw feeder, is coupled at the top of alkali lye storage tank with reactor by pipeline.
Centrifugal filter bottom rotating shaft is connected with rotary drum, and rotary drum side wall is provided with multiple apertures, for centrifuging Mother liquor
Discharge.Filter medium of the aperture in 100-120 mesh is covered with rotary drum, prevents crystal from being thrown away by aperture, can be received after centrifugation
Collect most of crystal.
Detachable sieve plate is arranged at the bottom of the mother liquor tank, the filter membrane of the mesh of aperture ＜ 120 is covered with sieve plate, after centrifugal filtration
If mother liquor has crystal or other impurities residual, can be removed by the filter membrane of mother liquor tank.
The hot water storage tank is to molten slurry device conveying hot water, during for choline first or disposing mother liquor amount deficiency, conveying
Cleaning pipes simultaneously, reduce deposit in pipeline.
Extend to the feed tube of bottom inside the molten slurry device inlet along barrel for a row, play a part of liquid separation, keep away
Exempt from solution largely to incline lower the problem of producing splashing, while be also beneficial to the abundant contact mixing of mother liquor and soda ash.Inside molten slurry device
There is the agitator of motor control, 2 are connected with agitating shaft~3 agitating paddles, accelerate dissolution velocity.
The helical axis front end of the screw feeder, which is provided with, twists tablet, the material of caking can in time be handled, ensured
The efficiency and stability of feeding.
The alkali lye storage tank and molten slurry device inwall scribble epoxy-phenol resin paint, and soda ash solution has certain corrosivity, ring
Oxygen phenolic coating has good alkaline-resisting anticorrosion effect, avoids the damage of container.
Brief description of the drawings
Fig. 1：Structural representation of the present utility model.
In figure：1. centrifugal filter, 2. mother liquor tanks, 3. hot water storage tanks, 4. molten slurry devices, 5. screw feeders, 6.
Alkali lye storage tank, 7. reactors, 8. product transfer kettles, 1-1. rotary drums, the detachable sieve plates of 2-1., 4-1. charging apertures, 4-2.
Feed tube, 4-3. agitators.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing, to this reality
It is further elaborated with new.
A kind of pyrosulfurous acid mother liquid of sodium reclaiming system, including centrifugal filter 1, mother liquor tank 2, hot water storage tank 3, it is molten slurry device 4,
Screw feeder 5 and alkali lye storage tank 6；The centrifugal filter 1, mother liquor tank 2, molten slurry device 4 and alkali lye storage tank 6 pass sequentially through pipeline
Connection, the top of centrifugal filter 1 are coupled by pipeline with product transfer kettle 8, and mother liquor tank 2 on the pipeline branch road of molten slurry device 4 with connecting
There is hot water storage tank 3, molten slurry device charging aperture 4-1 is connected with screw feeder 5, and the top of alkali lye storage tank 6 is joined with reactor 7 by pipeline
Connect.
Reactor 7 is thtee-stage shiplock reactor, SO2The mother liquor crystallization mixture pump for reacting generation wherein with soda ash is beaten
Enter product transfer kettle 8, mother liquor crystallization mixture product flows into centrifugal filter 1 by the outlet at bottom of transfer kettle 8.
The bottom rotating shaft of centrifugal filter 1 is connected with the rotary drum 1-1 that side wall is provided with multiple apertures, and being covered with aperture in rotary drum 1-1 exists
The filter medium of 100 mesh.Rotating shaft drive rotary drum 1-1 run at high speed caused by centrifugal force will crystallize and separate with mother liquor, crystallize by mistake
Filter medium is trapped in rotary drum 1-1, and mother liquor is thrown away by side wall aperture enters mother liquor tank 2 by the outer wall outlet at bottom of centrifugal filter 1.
The detachable sieve plate 2-1 for being covered with filter membrane is arranged at the bottom of mother liquor tank 2, and filter sizes are 120 mesh.Mother liquor is carried out by filter membrane
Secondary filter, the crystal or other impurities that are remained after centrifugal filtration are removed.Mother liquor is beaten by the outlet at bottom outflow of mother liquor tank 2 with pump
Enter molten slurry device 4.
Soda ash is added by the material feeding box of screw feeder 5, and molten slurry device charging is transported under the effect of screw feeder 5
Mouth 4-1.
Extend to the feed tube 4-2 of bottom inside the molten slurry inlet of device 4 along barrel for a row, mother liquor enters warp by inlet
Molten slurry device 4 bottom is flowed directly to by discharging tube 4-2 liquid separations, fully contacted with soda ash.The agitator 4-3 of motor control is opened, is stirred
Mix and 2 agitating paddles are connected with axle, accelerate dissolution velocity.During disposing mother liquor amount deficiency from hot water storage tank 3 to it is molten slurry device 4 supplement it is molten
Agent.Soda ash solution flow to alkali lye storage tank 6 by the molten slurry liquid outlet of device 4.
Soda ash solution pump is transferred to reactor 7 by alkali lye storage tank 6, participates in reacting as raw material, mother liquor completes its reuse.
The utility model can also have other numerous embodiments, in the situation without departing substantially from the utility model spirit and principle
Under, any change and deformation that those skilled in the art make according to the utility model should all belong to of the present utility model
Protection domain.
Claims (8)
1. a kind of pyrosulfurous acid mother liquid of sodium reclaiming system, including centrifugal filter（1）With molten slurry device（4）, it is characterised in that：Also wrap
Include mother liquor tank（2）, hot water storage tank（3）, screw feeder（5）With alkali lye storage tank（6）；The centrifugal filter（1）, mother liquor tank
（2）, molten slurry device（4）With alkali lye storage tank（6）Pass sequentially through pipeline connection, centrifugal filter（1）Top passes through in pipeline and product
Turn kettle（8）Connection, mother liquor tank（2）With molten slurry device（4）Pipeline branch road on be connected with hot water storage tank（3）, molten slurry device charging aperture（4-1）
It is connected with screw feeder（5）, alkali lye storage tank（6）Top and reactor（7）Coupled by pipeline.
2. pyrosulfurous acid mother liquid of sodium reclaiming system according to claim 1, it is characterised in that：The centrifugal filter（1）
Internal rotary drum（1-1）Side wall is provided with multiple apertures, and filter medium is covered with rotary drum.
3. pyrosulfurous acid mother liquid of sodium reclaiming system according to claim 2, it is characterised in that：The filtration media pore diameters exist
100-120 mesh.
4. pyrosulfurous acid mother liquid of sodium reclaiming system according to claim 1, it is characterised in that：The mother liquor tank（2）Bottom
There is detachable sieve plate（2-1）It is covered with filter membrane, the mesh of aperture ＜ 120.
5. pyrosulfurous acid mother liquid of sodium reclaiming system according to claim 1, it is characterised in that：In the molten slurry device inlet
Portion is the feed tube that a row extends to bottom along barrel（4-2）.
6. pyrosulfurous acid mother liquid of sodium reclaiming system according to claim 1, it is characterised in that：There is electricity inside the molten slurry device
The agitator of machine control（4-3）, 2 are connected with agitating shaft~3 agitating paddles.
7. pyrosulfurous acid mother liquid of sodium reclaiming system according to claim 1, it is characterised in that：Screw feeder（5）Spiral shell
Spin axis front end, which is provided with, twists tablet.
8. pyrosulfurous acid mother liquid of sodium reclaiming system according to claim 1, it is characterised in that：The molten slurry device（4）And alkali
Liquid storage tank（6）Inwall scribbles epoxy-phenol resin paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594066.7U CN206799176U (en) | 2017-05-25 | 2017-05-25 | A kind of pyrosulfurous acid mother liquid of sodium reclaiming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594066.7U CN206799176U (en) | 2017-05-25 | 2017-05-25 | A kind of pyrosulfurous acid mother liquid of sodium reclaiming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206799176U true CN206799176U (en) | 2017-12-26 |
Family
ID=60741903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720594066.7U Expired - Fee Related CN206799176U (en) | 2017-05-25 | 2017-05-25 | A kind of pyrosulfurous acid mother liquid of sodium reclaiming system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206799176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986357A (en) * | 2017-05-25 | 2017-07-28 | 宣城市楷昂化工有限公司 | A kind of pyrosulfurous acid mother liquid of sodium reclaiming system |
-
2017
- 2017-05-25 CN CN201720594066.7U patent/CN206799176U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986357A (en) * | 2017-05-25 | 2017-07-28 | 宣城市楷昂化工有限公司 | A kind of pyrosulfurous acid mother liquid of sodium reclaiming system |
| CN106986357B (en) * | 2017-05-25 | 2018-10-09 | 宣城市楷昂化工有限公司 | A kind of pyrosulfurous acid mother liquid of sodium reclaiming system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |