CN209020173U - A kind of trichlorosilane tail gas processing unit - Google Patents
A kind of trichlorosilane tail gas processing unit Download PDFInfo
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- CN209020173U CN209020173U CN201821616842.XU CN201821616842U CN209020173U CN 209020173 U CN209020173 U CN 209020173U CN 201821616842 U CN201821616842 U CN 201821616842U CN 209020173 U CN209020173 U CN 209020173U
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Abstract
The utility model discloses a kind of trichlorosilane tail gas processing units, including eluting column, neutralization reaction pond, settling tank, plate and frame filter press, lime tank A, lime tank B, water tower, immersible pump, screw pump, pH measuring device.It is easy for installation the utility model has the advantages that the utility model structure is simple below the utility model has reached；The immersible pump of the utility model extracts tower on the clarification lye of settling tank, and spray head is not easy to plug, and good absorption effect；Liquid in the clear liquid area of the utility model settling tank remains clear state, guarantees the normal operation of immersible pump；The pH value of the clarification lye sprayed in eluting column is controllable, avoids that meta-acid causes to corrode to equipment or meta-alkali causes to waste；The detachable and interchangeable cleaning of filter plate A, filter plate B of the utility model, reduces cost.
Description
Technical field
The utility model relates to trichlorosilane production technical fields, fill more particularly to a kind of processing of trichlorosilane tail gas
It sets.
Background technique
Currently, the trichlorosilane production technology that manufacturing enterprise, China uses is commonly improved Siemens, in production trichlorine
While hydrogen silicon, there is a certain amount of tail gas to need to elute absorption, usually use caustic soda in the prior art and carry out elution absorption.
But caustic soda price is higher, causes production cost higher；In addition lessivation reuses leacheate using circulating pump, but
Chlorosilane can hydrolyze generation silica in lessivation in tail gas, and recycling can result in blockage to spray head；Eluting column
(pond) in slagging, liquid is thicker, and elution water pump cannot be normally-open, influences normal use；Basicity is bad in lessivation
Control, if meta-acid easily corrodes pipeline, equipment, if meta-alkali be easy to cause waste, causes higher maintenance cost in a word.
Utility model content
The purpose of this utility model, which is that, overcomes existing technical problem, provides a kind of trichlorosilane tail gas processing dress
It sets.
In order to achieve the above objectives, the utility model is implemented according to following technical scheme:
A kind of trichlorosilane tail gas processing unit, including eluting column, neutralization reaction pond, settling tank, plate and frame filter press；Also wrap
Include lime tank A, lime tank B, water tower, immersible pump, screw pump, pH measuring device；
The neutralization reaction pond is followed successively by reaction zone A, overflow area, reaction zone B from left to right；The overflow area and reaction zone
There is left gear filter plate between A；There is right gear filter plate between the overflow area and reaction zone B；Between the left gear filter plate and right gear filter plate
There is baffler；It is described it is left gear filter plate, it is right gear filter plate, baffler bottom be each attached to the bottom of pond of neutralization reaction pond；The reaction
The region that area A and reaction zone B is formed is U-shaped；
The left gear filter plate lower half portion is solid baffle；The left gear filter plate top half is the filter plate of uniformly distributed filter opening
A；The filter plate A is detachably secured on solid baffle；The right gear filter plate is identical as left gear filter-plate structure；The baffler
Center place on the upper side is connected with overflow pipe；
There is agitating device in the reaction zone A, reaction zone B；The reaction zone A, reaction zone B bottom pass through pipeline
It is connected with screw pump；The lime tank A correlates with reaction zone A phase；The lime tank B correlates with reaction zone B phase；
The water tower is connect with overflow area by pipeline；The pH measuring device is mounted in overflow area；
The settling tank is followed successively by level-one decanting zone, second level decanting zone, clear liquid area from right to left；Level-one decanting zone bottom
Portion is connected with screw pump by pipeline；It is separated between the level-one decanting zone and second level decanting zone by division wall；The interval
Wall top is equipped with outlet tube；Valve is installed on the left of the outlet tube；Pass through filter between the clear liquid area and second level decanting zone
Plate B is separated；Immersible pump is installed in the clear liquid area；
The eluting column passes through the reaction zone A connection of pipeline and neutralization reaction pond；The overflow area is by overflow pipe and sinks
The level-one decanting zone connection in pond is dropped；The connection of the spray piping of the immersible pump and eluting column；The screw pump is and plate compression
Machine connection.
Preferably, auger conveyor is arranged at the lime tank A, the bottom lime tank B.
The action principle of the utility model:
The utility model includes eluting column, neutralization reaction pond, settling tank, plate and frame filter press, further include lime tank A, lime tank B,
Water tower, immersible pump, screw pump, pH measuring device.
The present apparatus passes through the past neutralization for having been injected into clear water of auger conveyor of lime tank A, the installation of the lime lower part tank B first
Reaction zone A, the reaction zone B of reaction tank convey hydrated lime in powder, and the agitating device in simultaneous reactions area A, reaction zone B is opened, and pass through
Neutralization reaction controls pH value in the lye after 8~10, neutralization and enters settling tank by the overflow pipe in neutralization reaction pond overflow area
It is interior.The lye for entering settling tank is settled in level-one decanting zone first, and part is level-one clear alkali liquor on level-one decanting zone；Level-one
Clear alkali liquor enters second level decanting zone via pipeline, and via clear liquid area is entered after filter plate B, level-one clear alkali liquor is after filter plate B at this time
As clarification lye.Clarification lye is drawn into spray piping by immersible pump.Spray piping then sprays clarification lye, to entrance
The tail gas of eluting column is eluted.Waste liquid after elution finally then falls in elution tower bottom, flows into neutralization reaction pond from pipeline,
Do not have the hydrogen chloride of fully reacting can then continue in neutralization reaction pond in and.
Since white lime is not to completely dissolve in water, and there are also the therefore meetings of certain solids for the waste liquid after elution
Precipitation slag is generated, the screw pump under reaction zone A, reaction zone B that a part of precipitation slag passes through neutralization reaction pond transports out；One
Screw pump under the level-one decanting zone that fractional precipitation slag passes through settling tank transports out.The precipitation slag that screw pump transports out is finally all
It is sent in plate and frame filter press.
PH measuring device is mounted in overflow area, can be by auger conveyor if site operation personnel has found that pH value is lower
It opens and supplements lime in mixing neutralization reaction pond, while opening agitating device, control pH is 8~10；If it was found that pH value is higher
The water tower injected clear water on overflow area can then be opened and stop adding lime.And due to there is precipitation slag conveying to remove plate and frame filter press, because
This, which can take away partially liq, will lead to liquid reduction, it is also desirable to add clear water according to the actual situation.
Setting overflow area purpose is in neutralization reaction pond, reaction zone can be made to become muddy in whipping process, therefore pass through
Filter plate A Simple filter on the left gear filter plate of overflow area and right gear filter plate is once.Filter opening on filter plate A is greater than the filter opening of filter plate B,
Selection can suggest filtering but not allow susceptible to plugging filter opening diameter as needed.Filter plate A is detachable, then it is stifled can periodically to remove generation
The filter plate of plug installs new filter plate, then cleans the filter plate of blocking, recycling.Filter plate B in settling tank be then in order to
Further filtering, level-one clear alkali liquor have greatly reduced impurity after sedimentation, only the fine filtering through filter plate B, energy
The case where guaranteeing that the impurity in obtained clarification lye is less, reducing spray head blocking.
The structure of the utility model is easy to use white lime to make lye, and avoid white lime solubility it is low have it is a large amount of solid
The drawbacks of body sediment, greatly reduces the cost that original technology uses caustic soda.
The utility model reached it is following the utility model has the advantages that
The utility model structure is simple, easy for installation；The immersible pump of the utility model extracts on the clarification lye of settling tank
Tower, spray head are not easy to plug, and good absorption effect；Liquid in the clear liquid area of the utility model settling tank remains clarification shape
State guarantees the normal operation of immersible pump；The pH value of the clarification lye sprayed in eluting column is controllable, and meta-acid is avoided to cause equipment
Corrosion or meta-alkali cause to waste；The detachable and interchangeable cleaning of filter plate A, filter plate B of the utility model, reduces cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is cross-sectional view of the Fig. 1 along line A-A.
In figure: 1, eluting column；2, neutralization reaction pond；3, settling tank；4, plate and frame filter press；5, lime tank A；6, lime tank B；
7, water tower；8, immersible pump；9, screw pump；10, pH measuring device；11, reaction zone A；12, overflow area；13, reaction zone B；14, left
Keep off filter plate；15, right gear filter plate；16, baffler；17, filter plate A；18, overflow pipe；19, agitating device；20, baffle；21, level-one is heavy
Area drops；22, second level decanting zone；23, clear liquid area；24, division wall；25, outlet tube；26, valve；27, filter plate B；28, spray tube
Road；29, precipitation slag.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings and specific embodiments, in the signal of this utility model
Property embodiment and explanation be used to explain the utility model, but be not intended to limit the scope of the present invention.
As shown in Figure 1 and Figure 2, a kind of trichlorosilane tail gas processing unit, including eluting column 1, neutralization reaction pond 2, settling tank
3, plate and frame filter press 4；It further include lime tank A5, lime tank B6, water tower 7, immersible pump 8, screw pump 9, pH measuring device 10.
Neutralization reaction pond 2 is followed successively by reaction zone A11, overflow area 12, reaction zone B13 from left to right.Overflow area 12 with react
There is left gear filter plate 14 between area A11；There is right gear filter plate 15 between overflow area 12 and reaction zone B13；Left gear filter plate 14 is filtered with right gear
There is baffler 16 between plate 15；It is left gear filter plate 14, it is right gear filter plate 15, baffler 16 bottom be each attached to neutralization reaction pond 2
Bottom of pond；The region that reaction zone A11 and reaction zone B13 is formed is U-shaped.
Left gear 14 lower half portion of filter plate is solid baffle 20；Left gear 14 top half of filter plate is the filter plate of uniformly distributed filter opening
A17；Filter plate A17 is detachably secured on solid baffle 20；Right gear filter plate 15 is identical as left gear 14 structures of filter plate；Baffler 16
Center place on the upper side is connected with overflow pipe 18.
There is agitating device 19 in reaction zone A11, reaction zone B13；Reaction zone A11, reaction zone B13 bottom pass through pipe
Road is connected with screw pump 9；Lime tank A5 correlates with reaction zone A11 phase；Lime tank B6 correlates with reaction zone B13 phase.
Water tower 7 is connect with overflow area 12 by pipeline；PH measuring device 10 is mounted in overflow area 12.
Settling tank 3 is followed successively by level-one decanting zone 21, second level decanting zone 22, clear liquid area 23 from right to left.Level-one decanting zone 21
Bottom is connected with screw pump by pipeline；It is separated between level-one decanting zone 21 and second level decanting zone 22 by division wall 24；Interval
24 top of wall is equipped with outlet tube 25；Valve 26 is installed on the left of outlet tube 25；Lead between clear liquid area 23 and second level decanting zone 22
Filter plate B27 is separated；Immersible pump 8 is installed in clear liquid area 23.
Eluting column 1 is connect by pipeline with the reaction zone A11 of neutralization reaction pond 2；Overflow area 12 is by overflow pipe 18 and sinks
The level-one decanting zone 21 for dropping pond 3 connects；Immersible pump 8 is connect with the spray piping 28 of eluting column 1；Screw pump 9 is and plate compression
Machine 4 connects.
As shown in Figure 1, big arrow indicate the waste liquid after spraying in eluting column 1 flow through direction: flowed out by eluting column 1
Afterwards, it is flowed into the reaction zone A11 and reaction zone B13 of neutralization reaction pond 2.What small arrow indicated is overflow in neutralization reaction pond 2
Lye in area 12 flows through direction: after overflow pipe 18 is flowed into settling tank 3, settling by level-one decanting zone 21, second level
Area 22 after finally entering clear liquid area 23, is drawn into spray piping 28 by immersible pump 8.
As shown in Fig. 2, the precipitation slag 29 of deposition is arranged at reaction zone A11 and the bottom reaction zone B13, precipitation slag 29 then passes through screw rod
Pump 9 transfers out, and filters pressing processing is then carried out at plate and frame filter press 4.
The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model
The technology deformation that art scheme is made, each falls within the protection scope of the utility model.
Claims (3)
1. a kind of trichlorosilane tail gas processing unit, including eluting column, neutralization reaction pond, settling tank, plate and frame filter press；Its feature
It is: further includes lime tank A, lime tank B, water tower, immersible pump, screw pump, pH measuring device；
The neutralization reaction pond is followed successively by reaction zone A, overflow area, reaction zone B from left to right；The overflow area and reaction zone A it
Between have left gear filter plate；There is right gear filter plate between the overflow area and reaction zone B；There is resistance between the left gear filter plate and right gear filter plate
Partition；It is described it is left gear filter plate, it is right gear filter plate, baffler bottom be each attached to the bottom of pond of neutralization reaction pond；The reaction zone A with
The region of reaction zone B composition is U-shaped；
The left gear filter plate lower half portion is solid baffle；The left gear filter plate top half is the filter plate A of uniformly distributed filter opening；Institute
Filter plate A is stated to be detachably secured on solid baffle；The right gear filter plate is identical as left gear filter-plate structure；The baffler center
Place on the upper side is connected with overflow pipe；
There is agitating device in the reaction zone A, reaction zone B；The reaction zone A, reaction zone B bottom pass through pipeline connect
There is screw pump；The lime tank A correlates with reaction zone A phase；The lime tank B correlates with reaction zone B phase；
The water tower is connect with overflow area by pipeline；The pH measuring device is mounted in overflow area；
The settling tank is followed successively by level-one decanting zone, second level decanting zone, clear liquid area from right to left；Level-one decanting zone bottom is logical
Piping is connected with screw pump；It is separated between the level-one decanting zone and second level decanting zone by division wall；On the division wall
Portion is equipped with outlet tube；Valve is installed on the left of the outlet tube；Between the clear liquid area and second level decanting zone by filter plate B every
It opens；Immersible pump is installed in the clear liquid area；
The eluting column passes through the reaction zone A connection of pipeline and neutralization reaction pond；The overflow area passes through overflow pipe and settling tank
Level-one decanting zone connection；The connection of the spray piping of the immersible pump and eluting column；The screw pump connects with plate and frame filter press
It connects.
2. a kind of trichlorosilane tail gas processing unit according to claim 1, it is characterised in that: the lime tank A, lime
Auger conveyor is arranged at the bottom tank B.
3. a kind of trichlorosilane tail gas processing unit according to claim 1, it is characterised in that: the filter plate A filter opening is big
In the filter opening of filter plate B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821616842.XU CN209020173U (en) | 2018-09-30 | 2018-09-30 | A kind of trichlorosilane tail gas processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821616842.XU CN209020173U (en) | 2018-09-30 | 2018-09-30 | A kind of trichlorosilane tail gas processing unit |
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| Publication Number | Publication Date |
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| CN209020173U true CN209020173U (en) | 2019-06-25 |
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ID=66905379
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821616842.XU Active CN209020173U (en) | 2018-09-30 | 2018-09-30 | A kind of trichlorosilane tail gas processing unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697945A (en) * | 2019-11-22 | 2020-01-17 | 湖南金益环保股份有限公司 | Industrial sewage is desulfurization oxidation pond for secondary treatment based on environmental emission reduction |
| CN110721562A (en) * | 2019-10-23 | 2020-01-24 | 安徽国能亿盛环保科技有限公司 | Alkali wet-type desulfurization and denitrification equipment |
| CN111167292A (en) * | 2020-01-06 | 2020-05-19 | 河南硅烷科技发展股份有限公司 | Waste gas treatment device and method for trichlorosilane production |
-
2018
- 2018-09-30 CN CN201821616842.XU patent/CN209020173U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110721562A (en) * | 2019-10-23 | 2020-01-24 | 安徽国能亿盛环保科技有限公司 | Alkali wet-type desulfurization and denitrification equipment |
| CN110697945A (en) * | 2019-11-22 | 2020-01-17 | 湖南金益环保股份有限公司 | Industrial sewage is desulfurization oxidation pond for secondary treatment based on environmental emission reduction |
| CN111167292A (en) * | 2020-01-06 | 2020-05-19 | 河南硅烷科技发展股份有限公司 | Waste gas treatment device and method for trichlorosilane production |
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Effective date of registration: 20230710 Granted publication date: 20190625 |