CN208932985U - A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles - Google Patents
A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles Download PDFInfo
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- CN208932985U CN208932985U CN201820091113.0U CN201820091113U CN208932985U CN 208932985 U CN208932985 U CN 208932985U CN 201820091113 U CN201820091113 U CN 201820091113U CN 208932985 U CN208932985 U CN 208932985U
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Abstract
The utility model discloses the devices that a kind of phosphorous off-gas recovery of yellow phosphorus storage tank recycles.Yellow phosphorus storage tank is connect with surge tank, and surge tank is connected to spray column, is connect at the top of spray column with electrostatic precipitator, electrostatic precipitator bottom is connected to dilute acid bath.Spray column top is equipped with absorbent and enters pipeline, and passes through the first solenoid valve control flow；Spray tower bottom is connect with spray column overhead again after being connect by pipeline with cyclic acid pump, and cyclic acid pump outlet conduit is equipped with phosphoric acid and produces pipeline.The apparatus structure is simple, easy to operate, and high efficiente callback utilizes the phosphorous flue gas of yellow phosphorus storage tank.Using the device of the recycling and reusing of the phosphorous flue gas of yellow phosphorus storage tank of the utility model, the recovery efficiency of phosphorous flue gas is high, the period is short, whole process is revealed without phosphorous flue gas, absorbent utilization efficiency is high, no new impurity is introduced into recycling phosphoric acid, it solves the problems, such as phosphorous smoke pollution environment, damage site operation personnel's health, turns waste into wealth.
Description
Technical field
The utility model relates to phosphorous chemical industry technology and field of environment protection, in particular to a kind of phosphorous flue gas of yellow phosphorus storage tank returns
Receive the device and method recycled.
Background technique
Phosphorus is important biological element, and high-purity phosphoric acid food additives are widely used in as acid, the nutritional agents of yeast
Food industry.With the rapid development of China's electronics industry, high-purity phosphoric acid is also widely applied in electronics industry.Currently,
High-purity phosphoric acid production is mainly produced using thermal phosphoric acid, and thermal phosphoric acid the reaction such as is aoxidized, is hydrated using yellow phosphorus as raw material and generating
Phosphoric acid.
Yellow phosphorus is stored as major hazard source by water seal, and since yellow phosphorus fusing point is 44.1 DEG C, normal temperature storage is easy crystallization,
General water seal temperature control is at 70 DEG C or so.Due to operating the variation with yellow phosphorus storage tank liquid level, reservoir walls and underwater yellow phosphorus are seethed
It is contacted with air and generates phosphorus pentoxide and hydrogen phosphide flue gas.Hydrogen phosphide and phosphorus pentoxide flue gas are toxic gas, not only
Environment is polluted, threat more is generated to the health of on-site personnel.
Phosphorus pentoxide flue gas is passed through absorption tower, can be removed using water or phosphoric acid,diluted absorption.
Hydrogen phosphide absorption cleaning method mainly has combustion method, wet process and temp.-changing adsorption.Wherein combustion method is traditional phosphatization
Hydrogen processing method is blended in burning in incinerator by hydrogen phosphide and air and generates phosphoric acid smog, and phosphoric acid cigarette is passed through absorption tower system
Technical grade phosphoric acid, the shortcomings that the method is that incinerator using electric heating, belongs to high-energy equipment；Wet-treating hydrogen phosphide
It is to use sodium hypochlorite for absorbent, generates more stable phosphoric acid salt, the disadvantage is that generates the by-product chlorine largely reacted
Secondary pollution is caused, hypochlorous unstable chemcial property is extremely easy in decomposition, fails, and needs to frequently replace absorbing liquid, increases additional
Cost；Temp.-changing adsorption technology uses activated carbon adsorption, and test run initial stage hydrogen phosphide removal efficiency is run two months less than 20%~30%
Afterwards, removal efficiency is reduced to 5% or less.
Above method either chemical transfer method or absorption method, primarily directed to a large amount of phosphine gas, Er Qie great
It will cause a degree of secondary pollution.
Summary of the invention
Purpose of the utility model is to solve the phosphorous off-gas recovery recyclings of yellow phosphorus storage tank to exist in the prior art
The problem of, phosphorous off-gas recovery rate is improved, recovery process is simplified.
The utility model discloses the device and methods that a kind of phosphorous off-gas recovery of yellow phosphorus storage tank recycles, and technical solution is such as
Under:
The device that a kind of phosphorous off-gas recovery of yellow phosphorus storage tank of the utility model recycles, including gas storage, surge tank,
Spray column, spray thrower, phosphoric acid concentration sensor, liquid level sensor, cyclic acid pump, controller, electrostatic precipitator, dilute acid bath.Institute
Yellow phosphorus storage tank is stated to connect with surge tank；The surge tank and spray column connection；It is connect at the top of the spray column with electrostatic precipitator；
The electrostatic precipitator bottom is connected to dilute acid bath.The yellow phosphorus storage tank is equipped with fFlue gas collector；The spray column top is set
There is absorbent to enter pipeline, and by the first solenoid valve control flow, cyclic acid pump outlet conduit is equipped with phosphoric acid and produces pipeline；Institute
State that spray tower bottom connect by pipeline with cyclic acid pump, tower top connects, formation circulation line；Phosphorus is equipped with inside the spray column
Acid concentration sensor, liquid level sensor.
In above scheme, the yellow phosphorus storage tank exhanst gas outlet uses closed fFlue gas collector.
In above scheme, the surge tank outlet conduit is equipped with valve.
In above scheme, tail gas blow-down pipe is provided at the top of the electrostatic precipitator.
The yellow phosphorus storage tank is equipped with fFlue gas collector；The spray column top is equipped with absorbent and enters pipeline, recycle acid
Pump discharge pipeline is equipped with phosphoric acid and produces pipeline；The spray tower bottom by pipeline connect with cyclic acid pump after again with spray column tower
Top connection, forms circulation line.
Absorbent is connected at the top of spray column through the first solenoid valve and spray thrower, first solenoid valve and controller and
Liquid level sensor connection.
Second solenoid valve, second solenoid valve and controller and phosphoric acid are provided on pipeline at the top of cyclic acid pump to spray column
Concentration sensor connection.
A kind of method of the recycling and reusing of phosphorous flue gas of yellow phosphorus storage tank described in the utility model is selected above-mentioned phosphorous
The recycling of flue gas
Reuse means includes the following steps
(1) by controller set liquid level upper lower limit value in spray column, in spray column aqueous solution phosphoric acid concentration.
(2) by the valve on controller or manually opened absorbent delivery pipe, absorbent is passed through spray thrower, by absorbent
Uniformly it is sprayed into tower；
(3) manually opened surge tank outlet valve, makes phosphorous flue gas enter absorption tower and absorbent hybrid reaction；
(4) when spray column tower reactor liquid level reaches the upper limit, the first solenoid valve is automatically closed；Spray column tower reactor aqueous solution phosphoric acid
Concentration
When reaching the upper limit, second solenoid valve automatically opens extraction；
(5) tail gas after absorbing enters electrostatic demister processing, qualified discharge；
(6) the tail acid collected in dilute acid bath enters absorbent batch tank, recycles.
In the above method, the phosphoric acid of spray column tower reactor liquid level aqueous solution in 30%~60%, spray column in the step (1)
Concentration is 30%~55%.
In the above method, absorbent formula in the step (2) are as follows: 25-60%(mass fraction) hydrogen peroxide, 0.1-
10%(mass fraction) inorganic acid, surplus is water.
In the above method, in spray column the volume ratio of the mixed liquor of phosphoric acid and hydrogen peroxide, inorganic acid and water be 10000~
50000:1.
In the above method, the spray thrower material is 316L stainless steel.
In above-mentioned absorbent, the hydrogen peroxide raw material is the hydrogen peroxide of food-grade 30-35%.
In above-mentioned absorbent, the inorganic acid is the phosphoric acid that mass concentration is 5-15%.
A kind of working principle of the phosphorous off-gas recovery reuse means of yellow phosphorus storage tank of the utility model is stored up using yellow phosphorus
Slot, surge tank, the potential difference of spray column and gas is micro- builds the pressure as gas initial driving force, it is anti-with absorbent that gas enters spray column
It answers, absorb, tiny structure is presented in spray column, continues into spray column for gas and provides power, save power-equipment, spray column comes out
Gas enter electrostatic precipitator processing after, qualified discharge.Entire purification process carries out in the environment being completely closed, and ensure that
Whole process is revealed without phosphorous flue gas, improves absorbent utilization rate, and hydrogen phosphide and diphosphorus trioxide reaction time are short, absorbs speed
Degree is fast, shortens phosphorous off-gas recovery and utilizes the period.Spray column inner absorbent is through cyclic acid pump cyclic absorption, the phosphoric acid concentration of solution
It is gradually increased, when the phosphoric acid concentration of phosphoric acid concentration sensor detection is the upper limit, phosphoric acid produces the second solenoid valve on pipe and opens,
Into industrial acids finished product storage tank；For the phosphoric acid,diluted generated at electrostatic precipitator through pipeline to absorbent preparing tank, recycling is sharp again
With.
The beneficial effects of the utility model
(1) edible hydrogen peroxide is added in the tail acid that phosphoric acid system generates, on the one hand recycles phosphoric acid production system
In phosphorus-containing wastewater, mitigate environmental protection pressure；On the other hand, hydrogen peroxide is diluted through acidic wastewater containing phosphorus, reduces the dense of hydrogen peroxide
Degree, and in acid condition, the speed of decomposing hydrogen dioxide solution is slow, is conducive to the storage of hydrogen peroxide.
(2) main component is hydrogen peroxide in absorbent, hydrogen phosphide, three oxidations two in the phosphorous flue gas of hydrogen peroxide absorbing reaction
Phosphorus, phosphorus pentoxide produce phosphoric acid, and micro- excessive hydrogen peroxide voluntarily decomposes, and whole process will not introduce other impurities, guarantee phosphorus
The product quality of acid；
(3) spray column absorbing liquid is as industrial phosphoric acid, and into finished product storage tank, the low concentration phosphoric acid that electrostatic precipitator generates is returned
It receives for configuring absorbing liquid, whole process is generated without the new three wastes.
(4) rationally utilizing yellow phosphorus storage tank is geosyncline, and poor with the position height of surge tank, spray column, flue gas is absorbed from closing
Device automatic stream buffers trench bottom, furthermore in spray column hydration reaction occurs for phosphorous flue gas, makes to generate tiny structure in spray column, have
Conducive to the flowing of the phosphorous flue gas in gas collector, power-equipment and expense are saved；
The utility model rationally utilizes chemical process energy-saving and emission-reduction principle, and the power-equipment during reducing reduces energy consumption,
Solve the problems, such as phosphorous smoke pollution environment, damage site operation personnel's health, and high efficiente callback utilizes yellow phosphorus storage tank
Phosphorous flue gas, turns waste into wealth.
Detailed description of the invention
Attached drawing 1 is the structure drawing of device that the phosphorous off-gas recovery of the utility model yellow phosphorus storage tank recycles.1. yellow phosphorus storage tank,
2. surge tank, 3. spray columns, 4. electrostatic precipitators, 5. dilute acid baths.
Specific embodiment
Below with reference to embodiment, the utility model is described in further detail, but should not be construed the above-mentioned master of the utility model
Topic range is only limitted to following embodiments.It is common according to this field in the case where not departing from the above-mentioned technical idea of the utility model
Technological know-how and customary means make various replacements and change, should all include within the protection scope of the present utility model.
Embodiment 1
The device that a kind of phosphorous off-gas recovery of yellow phosphorus storage tank recycles, including gas collector, surge tank 2, spray column 3,
Spray thrower, phosphoric acid concentration sensor, liquid level sensor, cyclic acid pump, controller, electrostatic precipitator 4, dilute acid bath 5, the yellow phosphorus
Storage tank 1 is connect with surge tank 2；The surge tank 2 is connected to spray column 3；3 top of spray column is connect with electrostatic precipitator 4；
4 bottom of electrostatic precipitator is connected to dilute acid bath 5, and tail gas blow-down pipe is provided at the top of electrostatic precipitator 4.
The yellow phosphorus storage tank 1 is equipped with gas collector；3 top of spray column is equipped with absorbent and enters pipeline, recycles
Sour pump discharge pipeline is equipped with phosphoric acid and produces pipeline；3 bottom of spray column by pipeline connect with cyclic acid pump after again with spray
The connection of 3 tower top of tower, forms circulation line.
Absorbent is connected to 3 top of spray column, first solenoid valve and controller through the first solenoid valve and spray thrower
And liquid level sensor connection.
Second solenoid valve, second solenoid valve and controller and phosphorus are provided on cyclic acid pump to the pipeline at 3 top of spray column
The connection of acid concentration sensor.
Embodiment 2
The device and method that a kind of phosphorous off-gas recovery of yellow phosphorus storage tank recycles, three grade yellow phosphorus storage tanks through gas collector with
Surge tank 2 connects, and surge tank 2 is connected to through hand-operated valve with spray column 3, and 3 top of spray column is connect through pipeline with electrostatic precipitator 4,
4 bottom of electrostatic precipitator is connected to dilute acid bath 5.3 top of spray column is equipped with absorbent and enters pipeline, and passes through the first solenoid valve control
Flow processed enters from spray thrower；3 bottom of spray column is that 3 tower top of spray column connects after connecting by pipeline with cyclic acid pump, shape
At circulation line, cyclic acid pump outlet conduit is equipped with phosphoric acid and produces pipeline；Phosphoric acid concentration sensor, liquid are equipped with inside spray column 3
Level sensor.
The surge tank outlet conduit is equipped with valve.
First solenoid valve is connect with controller, liquid level sensor.
The phosphoric acid extraction pipeline is equipped with second solenoid valve and connect with controller, phosphoric acid concentration sensor.
Tail gas blow-down pipe is provided at the top of the electrostatic precipitator 4.
The phosphoric acid concentration of 3 tower reactor liquid level aqueous solution in 30%~60%, spray column 3 of spray column is 30%~55%；
The absorbent formula are as follows: 25~60%(mass fraction) hydrogen peroxide, 0.1~10% inorganic acid, surplus is
Water；
A kind of working principle of the phosphorous off-gas recovery reuse means of yellow phosphorus storage tank of the utility model is stored up using yellow phosphorus
Slot, surge tank, the potential difference of spray column and gas is micro- builds the pressure as gas initial driving force, it is anti-with absorbent that gas enters spray column
It answers, absorb, tiny structure is presented in spray column, continues into spray column for gas and provides power, save power-equipment, spray column comes out
Gas enter electrostatic precipitator processing after, qualified discharge.Entire purification process carries out in the environment being completely closed, and ensure that
Whole process is revealed without phosphorous flue gas, improves absorbent utilization rate, and hydrogen phosphide and diphosphorus trioxide reaction time are short, absorbs speed
Degree is fast, shortens phosphorous off-gas recovery and utilizes the period.Spray column inner absorbent is through cyclic acid pump cyclic absorption, the phosphoric acid concentration of solution
It is gradually increased, when the phosphoric acid concentration of phosphoric acid concentration sensor detection reaches 51.4%, the second solenoid valve on phosphoric acid extraction pipe is beaten
It opens, into industrial acids finished product storage tank, product design 52%；At electrostatic precipitator generate 3.2% phosphoric acid,diluted through pipeline extremely
Absorbent preparing tank, recycling and reusing.
A kind of phosphorus off-gas recovery reuse method of the present embodiment selects above-mentioned phosphorus off-gas recovery reuse means, with
Yellow phosphorus A, B, C geosyncline exhaust pipe are connected using fFlue gas collector, comprising the following steps:
(1) spray column liquid level upper limit value is set as the phosphoric acid concentration position 45% of aqueous solution in 35%, spray column by controller；
(2) valve in absorbent delivery pipe is opened by controller, absorbent is passed through spray thrower, will be formulated as 25%(matter
Amount score) hydrogen peroxide, 5% inorganic acid, 70% water absorbent be uniformly sprayed into tower；
(3) manually opened surge tank outlet valve, makes phosphorous flue gas enter spray column and absorbent hybrid reaction；
(4) when spray column tower reactor liquid level reaches 35%, the first solenoid valve is automatically closed；Spray column tower reactor aqueous solution phosphoric acid
When concentration reaches 45%, second solenoid valve automatically opens extraction；
(5) tail gas after absorbing enters electrostatic demister processing, qualified discharge；
(6) the tail acid collected in dilute acid bath enters absorbent batch tank, recycles.
Through detecting, industrial phosphoric acid finished pot phosphoric acid concentration is about 44.8%, other indexs comply with standard (readily oxidizable substance concentration
For 32ppm, sulfate ion concentration is less than 20ppm).Dilute acid bath phosphoric acid concentration is about 1.35%, and readily oxidizable substance concentration is 14ppm,
Sulfate ion concentration is less than 10ppm, can be used for the configuration of absorbing liquid.Meet country from the gas of electrostatic precipitator outlet drain
Standard.
Embodiment 3
A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles, with embodiment 1.
A kind of phosphorus off-gas recovery reuse method of the present embodiment selects above-mentioned phosphorus off-gas recovery reuse means, with
Yellow phosphorus A, B, C geosyncline exhaust pipe are connected using fFlue gas collector, comprising the following steps:
(1) spray column liquid level upper limit value is set as the phosphoric acid concentration position 40% of aqueous solution in 40%, spray column by controller；
(2) valve in absorbent delivery pipe is opened by controller, absorbent is passed through spray thrower, will be formulated as 25%(matter
Amount score) hydrogen peroxide, 5% inorganic acid, 70% water absorbent be uniformly sprayed into tower；
(3) manually opened surge tank outlet valve, makes phosphorous flue gas enter spray column and absorbent hybrid reaction；
(4) when spray column tower reactor liquid level reaches 40%, the first solenoid valve is automatically closed；Spray column tower reactor aqueous solution phosphoric acid
When concentration reaches 40%, second solenoid valve automatically opens extraction；
(5) tail gas after absorbing enters electrostatic demister processing, qualified discharge；
(6) the tail acid collected in dilute acid bath enters absorbent batch tank, recycles.
Through detecting, industrial phosphoric acid finished pot phosphoric acid concentration is about 40.8%, other indexs comply with standard (readily oxidizable substance concentration
For 28ppm, sulfate ion concentration is less than 20ppm).Dilute acid bath phosphoric acid concentration is about 1.2%, and readily oxidizable substance concentration is 11ppm,
Sulfate ion concentration is less than 10ppm, can be used for the configuration of absorbing liquid.Meet country from the gas of electrostatic precipitator outlet drain
Standard.
Embodiment 4
A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles, with embodiment 1.
A kind of phosphorus off-gas recovery reuse method of the present embodiment selects above-mentioned phosphorus off-gas recovery reuse means, with
Yellow phosphorus A, B, C geosyncline exhaust pipe are connected using fFlue gas collector, comprising the following steps:
(1) spray column liquid level upper limit value is set as the phosphoric acid concentration position 40% of aqueous solution in 45%, spray column by controller；
(2) valve in absorbent delivery pipe is opened by controller, absorbent is passed through spray thrower, will be formulated as 25%(matter
Amount score) hydrogen peroxide, 5% inorganic acid, 70% water absorbent be uniformly sprayed into tower；
(3) manually opened surge tank outlet valve, makes phosphorous flue gas enter spray column and absorbent hybrid reaction；
(4) when spray column tower reactor liquid level reaches 45%, the first solenoid valve is automatically closed；Spray column tower reactor aqueous solution phosphoric acid
When concentration reaches 40%, second solenoid valve automatically opens extraction；
(5) tail gas after absorbing enters electrostatic demister processing, qualified discharge；
(6) the tail acid collected in dilute acid bath enters absorbent batch tank, recycles.
Through detecting, industrial phosphoric acid finished pot phosphoric acid concentration is 39.2%, other indexs comply with standard that (readily oxidizable substance concentration is
21ppm, sulfate ion concentration are less than 20ppm).Dilute acid bath phosphoric acid concentration is about 1.06%, and readily oxidizable substance concentration is 13ppm, sulphur
Acid ion concentration is less than 10ppm, can be used for the configuration of absorbing liquid.Meet national mark from the gas of electrostatic precipitator outlet drain
It is quasi-.
Embodiment 5
A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles, with embodiment 1.
A kind of phosphorus off-gas recovery reuse method of the present embodiment selects above-mentioned phosphorus off-gas recovery reuse means, with
Yellow phosphorus A, B, C geosyncline exhaust pipe are connected using fFlue gas collector, comprising the following steps:
(1) spray column liquid level upper limit value is set as the phosphoric acid concentration position 42% of aqueous solution in 48%, spray column by controller；
(2) valve in absorbent delivery pipe is opened by controller, absorbent is passed through spray thrower, will be formulated as 45%(matter
Amount score) hydrogen peroxide, 8% inorganic acid, 47% water absorbent be uniformly sprayed into tower；
(3) manually opened surge tank outlet valve, makes phosphorous flue gas enter spray column and absorbent hybrid reaction；
(4) when spray column tower reactor liquid level reaches 42%, the first solenoid valve is automatically closed；Spray column tower reactor aqueous solution phosphoric acid
When concentration reaches 42%, second solenoid valve automatically opens extraction；
(5) tail gas after absorbing enters electrostatic demister processing, qualified discharge；
(6) the tail acid collected in dilute acid bath enters absorbent batch tank, recycles.
Through detecting, industrial phosphoric acid finished pot phosphoric acid concentration is about 46.5%, other indexs comply with standard (readily oxidizable substance concentration
For 24.5ppm, sulfate ion concentration is less than 16ppm).Dilute acid bath phosphoric acid concentration is about 1.12%, and readily oxidizable substance concentration is
9.9ppm, sulfate ion concentration are less than 10ppm, can be used for the configuration of absorbing liquid.From the gas of electrostatic precipitator outlet drain
Meet national standard.
Embodiment 6
A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles, with embodiment 1.
A kind of phosphorus off-gas recovery reuse method of the present embodiment selects above-mentioned phosphorus off-gas recovery reuse means, with
Yellow phosphorus A, B, C geosyncline exhaust pipe are connected using fFlue gas collector, comprising the following steps:
(1) spray column liquid level upper limit value is set as the phosphoric acid concentration position 45% of aqueous solution in 58%, spray column by controller；
(2) valve in absorbent delivery pipe is opened by controller, absorbent is passed through spray thrower, will be formulated as 38%(matter
Amount score) hydrogen peroxide, 6% inorganic acid, 58% water absorbent be uniformly sprayed into tower；
(3) manually opened surge tank outlet valve, makes phosphorous flue gas enter spray column and absorbent hybrid reaction；
(4) when spray column tower reactor liquid level reaches 54%, the first solenoid valve is automatically closed；Spray column tower reactor aqueous solution phosphoric acid
When concentration reaches 43%, second solenoid valve automatically opens extraction；
(5) tail gas after absorbing enters electrostatic demister processing, qualified discharge；
(6) the tail acid collected in dilute acid bath enters absorbent batch tank, recycles.
Through detecting, industrial phosphoric acid finished pot phosphoric acid concentration is 45.5%, other indexs comply with standard that (readily oxidizable substance concentration is
18ppm, sulfate ion concentration are less than 17ppm).Dilute acid bath phosphoric acid concentration is about 1.15%, and readily oxidizable substance concentration is 12.1ppm,
Sulfate ion concentration is less than 9ppm, can be used for the configuration of absorbing liquid.Meet country from the gas of electrostatic precipitator outlet drain
Standard.
Claims (4)
1. the device that a kind of phosphorous off-gas recovery of yellow phosphorus storage tank recycles, which is characterized in that including gas collector, surge tank,
Spray column, spray thrower, phosphoric acid concentration sensor, liquid level sensor, cyclic acid pump, controller, electrostatic precipitator, dilute acid bath, institute
Yellow phosphorus storage tank is stated to connect with surge tank；The surge tank is connected to spray column；It is connect at the top of the spray column with electrostatic precipitator；
The electrostatic precipitator bottom is connected to dilute acid bath, is provided with tail gas blow-down pipe at the top of electrostatic precipitator.
2. the device that the phosphorous off-gas recovery of yellow phosphorus storage tank according to claim 1 recycles, which is characterized in that the yellow phosphorus
Storage tank is equipped with gas collector；The spray column top is equipped with absorbent and enters pipeline, and cyclic acid pump outlet conduit is equipped with phosphorus
Acid extraction pipeline；The spray tower bottom is connect with spray column overhead again after being connect by pipeline with cyclic acid pump, forms circulation
Pipeline.
3. the device that the phosphorous off-gas recovery of yellow phosphorus storage tank according to claim 1 recycles, which is characterized in that absorbent warp
First solenoid valve and spray thrower are connected at the top of spray column, and first solenoid valve is connect with controller and liquid level sensor.
4. the device that the phosphorous off-gas recovery of yellow phosphorus storage tank according to claim 1 recycles, which is characterized in that cyclic acid pump
Second solenoid valve is provided on pipeline at the top of to spray column, second solenoid valve is connect with controller and phosphoric acid concentration sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820091113.0U CN208932985U (en) | 2018-01-16 | 2018-01-16 | A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820091113.0U CN208932985U (en) | 2018-01-16 | 2018-01-16 | A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208932985U true CN208932985U (en) | 2019-06-04 |
Family
ID=66713401
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820091113.0U Active CN208932985U (en) | 2018-01-16 | 2018-01-16 | A kind of device that the phosphorous off-gas recovery of yellow phosphorus storage tank recycles |
Country Status (1)
| Country | Link |
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| CN (1) | CN208932985U (en) |
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2018
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Address after: 443007 no.66-3, Yiting Avenue, Yiting District, Yichang City, Hubei Province Patentee after: Hubei Xingfu Electronic Materials Co.,Ltd. Address before: 443007 no.66-3, Yiting Avenue, Yiting District, Yichang City, Hubei Province Patentee before: HUBEI SINOPHORUS ELECTRONIC MATERIALS CO.,LTD. |
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