CN209378637U - A kind of device of Cyanuric Chloride tail gas separation comprehensive utilization - Google Patents
A kind of device of Cyanuric Chloride tail gas separation comprehensive utilization Download PDFInfo
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- CN209378637U CN209378637U CN201821986421.6U CN201821986421U CN209378637U CN 209378637 U CN209378637 U CN 209378637U CN 201821986421 U CN201821986421 U CN 201821986421U CN 209378637 U CN209378637 U CN 209378637U
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Abstract
The utility model belongs to Cyanuric Chloride technical field in fine chemistry industry, a kind of device of Cyanuric Chloride tail gas separation comprehensive utilization, including dust-extraction unit, condensing unit and Alkali absorption device.The device of the utility model realizes Cyanuric Chloride containing Cyanuric Chloride, cyanogen chloride, the processing of chlorine tail gas hazard-free, pernicious gas in Cyanuric Chloride is by bag-type dust, condensation, Alkali absorption processing, by the Cyanuric Chloride product separation in tail gas, chlorine in tail gas reacts the sodium hypochlorite for being converted into high added value with sodium hydroxide, cyanogen chloride reuse is used as raw material into Cyanuric Chloride technique, more existing conventional equipment tail gas realizes the recycling of the three wastes, have many advantages, such as that processing cost is low, high treating effect, three wastes valueization.
Description
Technical field
The utility model belongs to Cyanuric Chloride technical field in fine chemistry industry, and it is comprehensive to be related to a kind of Cyanuric Chloride tail gas separation
The device utilized.
Background technique
In Cyanuric Chloride production process, monomer cyanogen chloride polymerize to obtain gaseous Cyanuric Chloride in polyfurnace high temperature, then
It meets with dry cold air, condensation becomes solid Cyanuric Chloride, can constantly generate tail gas in process of production.It is removed in the tail gas
Also containing the chlorine etc. excessively put into unpolymerized cyanogen chloride monomer, a small amount of Cyanuric Chloride and previous step process outside air
Toxic gas can cause great harm environment if being directly discharged in atmosphere, also not meet the mark of national gas discharge
It is quasi-.
The prior art uses Alkali absorption, the processing modes such as innoxious, but need to put into the resources such as raw material, equipment, manpower, makes to produce
The increased costs of product.Contain harmful substance in Alkali absorption liquid, it also can not direct emission, it is still necessary to enter waste liquid environment-friendly disposal system
Middle further progress harmless treatment, and more difficult complete processing.
It is had the disadvantage that in the traditional treatment method of the Tail Gas generated in Cyanuric Chloride production process
(1) tail gas treatment process route is long, equipment is cumbersome；
(2) resources, higher cost such as consumption of raw material, equipment, artificial；
(3) it handles second-rate.
Utility model content
To solve the problems, such as traditional handicraft, the utility model provides a kind of Cyanuric Chloride tail gas synthesis hypochlorous acid
Sodium treatment process, realizes Cyanuric Chloride polymerization tail gas recycling, and harmful tail gas is changed into the valuable byproduct of tool.It mentions
A kind of Cyanuric Chloride tail gas obtains the sodium hypochlorite of by-product by bag-type dust-condensation-tail gas absorption and realizes that cyanogen chloride returns out
It receives and utilizes, production cost can be significantly reduced, improve byproduct profit, while saving processing step and production equipment.
The technical solution of the utility model includes:
A kind of device of Cyanuric Chloride tail gas separation comprehensive utilization, including dust-extraction unit, condensing unit and Alkali absorption device；
The dust-extraction unit includes bag filter 1, and Cyanuric Chloride tail gas enters cloth through bag filter air inlet 2
Bag dust collector 1, Cyanuric Chloride tail gas realize that solid-state Cyanuric Chloride is separated with gas chlorination cyanogen, chlorine in bag filter 1, Gu
State Cyanuric Chloride is discharged from bag filter feed opening 4, and gas chlorination cyanogen and chlorine are condensed through the entrance of bag filter gas outlet 3
In device；
The condensing unit includes the first condenser 11, the second condenser 12 and collector 13；Bag filter outlet
Mouth 3 is connected with the air inlet of the first condenser 11, and gas enters the tube layer of the first condenser 11, and cooling medium is cold by first
Gas temperature is reduced to 15-20 DEG C by the shell of condenser 11；The air inlet of the gas outlet of first condenser 11 and the second condenser 12
Mouth is connected, and the shell of the second condenser 12 is entered back by primary condensed gas, and cooling medium passes through the second condenser
Gas temperature is further reduced to 5-12 DEG C by 12 tube layer；The outlet of second condenser 12 is connected with 13 entrance of collector,
13 gas outlet of collector is connected with Alkali absorption device, and cyanogen chloride is condensed into liquid and enters 13 bottom of collector, and residual gas continues
Into in Alkali absorption device；
The Alkali absorption device includes the first alkali adsorption tower 5, the second alkali adsorption tower 7 and third alkali adsorption tower 9, each
Alkali adsorption tower changes between level-one alkali adsorption tower, second level alkali adsorption tower, stand-by still；First alkali adsorption tower, 5 bottom and top pass through
Pipeline is connected, and pipeline is equipped with first circulation pump 6, realizes alkali interior circulation in the first alkali adsorption tower 5；First alkali adsorption tower 5
Top is equipped with gas vent, is switched between the first tail gas gas outlet and cyanogen chloride exhaust outlet by valve；First tail gas goes out
Port is connected by pipeline with the second tail gas air intake of the second alkali adsorption tower 7；Cyanogen chloride exhaust outlet and Cyanuric Chloride technique
Middle feed(raw material)inlet is connected, and recycles as raw material；Internal recycle pipeline connection alkali is passed through pipeline, is controlled by valve to the first alkali
Lye is added in absorption tower 5；The pipeline connection type of second alkali adsorption tower 7 and third alkali adsorption tower 9 and the first alkali adsorption tower 5
Pipeline connection type is identical；The tail gas come out from bag filter gas outlet 3 is entered to by pipeline through the first tail gas air intake
In first alkali adsorption tower 5；The gas come out at the top of third alkali adsorption tower 9, into Cyanuric Chloride technique as raw material or entrance
First alkali adsorption tower 5 is handled again.
The utility model has the beneficial effects that the utility model provides a kind of dress of Cyanuric Chloride tail gas separation comprehensive utilization
It sets, realize Cyanuric Chloride is handled containing Cyanuric Chloride, cyanogen chloride, chlorine tail gas hazard-free, the pernicious gas warp in Cyanuric Chloride
Cloth bag dedusting, condensation, Alkali absorption processing, the Cyanuric Chloride product in tail gas are separated, the chlorine and sodium hydroxide in tail gas
Reaction is converted into the sodium hypochlorite of high added value, and cyanogen chloride reuse is used as raw material, more existing conventional dress into Cyanuric Chloride technique
Setting tail gas realizes the recycling of the three wastes, has many advantages, such as that processing cost is low, high treating effect, three wastes valueization.
Detailed description of the invention
Fig. 1 is that a kind of of the utility model synthesizes sodium hypochlorite device skill flow chart using Cyanuric Chloride tail gas.
In figure: 1 bag filter；2 bag filter air inlets；3 bag filter gas outlets；4 bag filter blankings
Mouthful；5 first alkali adsorption towers；6 first circulations pump；7 second alkali adsorption towers；8 second circulations pump；9 third alkali adsorption towers；10 thirds are followed
Ring pump；11 first condensers；12 second condensers；13 collectors.
Specific embodiment
Below in conjunction with technical solution and attached drawing, specific embodiment of the present utility model is further illustrated.
A kind of device of Cyanuric Chloride tail gas separation comprehensive utilization, including dust-extraction unit, condensing unit and Alkali absorption device；
The dust-extraction unit includes bag filter 1, and Cyanuric Chloride tail gas enters cloth through bag filter air inlet 2
Bag dust collector 1, Cyanuric Chloride tail gas realize that solid-state Cyanuric Chloride is separated with gas chlorination cyanogen, chlorine in bag filter 1, Gu
State Cyanuric Chloride is discharged from bag filter feed opening 4, and gas chlorination cyanogen and chlorine are condensed through the entrance of bag filter gas outlet 3
In device；
The condensing unit includes the first condenser 11, the second condenser 12 and collector 13；Bag filter outlet
Mouth 3 is connected with the air inlet of the first condenser 11, and gas enters the tube layer of the first condenser 11, and cooling medium is cold by first
Gas temperature is reduced to 15-20 DEG C by the shell of condenser 11；The air inlet of the gas outlet of first condenser 11 and the second condenser 12
Mouth is connected, and the shell of the second condenser 12 is entered back by primary condensed gas, and cooling medium passes through the second condenser
Gas temperature is further reduced to 5-12 DEG C by 12 tube layer；The outlet of second condenser 12 is connected with 13 entrance of collector,
13 gas outlet of collector is connected with Alkali absorption device, and cyanogen chloride is condensed into liquid and enters 13 bottom of collector, and residual gas continues
Into in Alkali absorption device；
The Alkali absorption device includes the first alkali adsorption tower 5, the second alkali adsorption tower 7 and third alkali adsorption tower 9, each
Alkali adsorption tower changes between level-one alkali adsorption tower, second level alkali adsorption tower, stand-by still；First alkali adsorption tower, 5 bottom and top pass through
Pipeline is connected, and pipeline is equipped with first circulation pump 6, realizes alkali interior circulation in the first alkali adsorption tower 5；First alkali adsorption tower 5
Top is equipped with gas vent, is switched between the first tail gas gas outlet and cyanogen chloride exhaust outlet by valve；First tail gas goes out
Port is connected by pipeline with the second tail gas air intake of the second alkali adsorption tower 7；Cyanogen chloride exhaust outlet and Cyanuric Chloride technique
Middle feed(raw material)inlet is connected, and recycles as raw material；Internal recycle pipeline connection alkali is passed through pipeline, is controlled by valve to the first alkali
Lye is added in absorption tower 5；The pipeline connection type of second alkali adsorption tower 7 and third alkali adsorption tower 9 and the first alkali adsorption tower 5
Pipeline connection type is identical；From gas through bag filter gas outlet 3 come out tail gas by pipeline through the first tail gas air intake into
Enter into the first alkali adsorption tower 5；The gas come out at the top of third alkali adsorption tower 9, into Cyanuric Chloride technique as raw material or
It is handled again into the first alkali adsorption tower 5.
Specific embodiment: Cyanuric Chloride chloride containing cyanogen, Cyanuric Chloride, chlorine tail gas recycling treatment process, three polychlorostyrene
Pernicious gas in cyanogen realizes the purpose of recycling, steps are as follows through bag-type dust-condensation-tail gas absorption:
(1) bag-type dust: Cyanuric Chloride tail gas is passed through through bag filter air inlet 2 into bag filter 1, trimerization
Solid-state Cyanuric Chloride in chlorine cyanogen tail gas is separated with gas chlorination cyanogen, chlorine, and Cyanuric Chloride is as Product recycling from bag-type dust
The discharge of device feed opening 4 is collected, and gas chlorination cyanogen and chlorine go successively to subsequent processing；
(2) condensed absorbent: condensation includes secondary condenser, and the gas come out from bag filter gas outlet 3 is introduced into the
One condenser, 11 tube layer, cooling medium pass through the shell of the first condenser 11, gas temperature are reduced to 15-20 DEG C, is entered back into
The shell of second condenser 12, cooling medium pass through the tube layer of the second condenser 12, gas temperature are further reduced to 5-12
DEG C, it is collected into collector 13, cyanogen chloride is condensed into liquid and enters 13 bottom of collector, and residual gas goes successively to next work
Sequence；
(3) Alkali absorption: Alkali absorption includes three alkali adsorption towers, and each alkali adsorption tower is inhaled in level-one alkali adsorption tower, second level alkali
It receives and changes between tower, stand-by still；Firstly, will by condensed in two stages device processing after remaining gas by 5 tower bottom of the first alkali adsorption tower into
Enter in the first alkali adsorption tower 5, sprays sodium hydrate aqueous solution on 5 top of the first alkali adsorption tower, gas sufficiently connects with sodium hydroxide
Touching is reacted, and the chlorine in gas is reacted with sodium hydrate aqueous solution generates sodium hypochlorite, the Alkali absorption of 5 tower bottom of the first alkali adsorption tower
Liquid is passed through 5 tower top of the first alkali adsorption tower through 6 circulation of first circulation pump, realizes cyclic absorption；First alkali adsorption tower, 5 tower top residue gas
Body enters 7 tower bottom of the second alkali adsorption tower, realizes that gas second level absorbs, and the tower top residual gas in the second alkali adsorption tower 7 is mainly
Cyanogen chloride, cyanogen chloride are used as raw material to recycle as in Cyanuric Chloride technique；In the above process, the first alkali adsorption tower 5 is used as one
Grade alkali adsorption tower, the second alkali adsorption tower 7 are used as second level alkali adsorption tower, and third alkali adsorption tower 9 is used as stand-by still, and gas passes through second level
Alkali absorption, chlorine conversion are collected at sodium hypochlorite, and the cyanogen chloride that tower top is separated is used again as raw material；When first
When the pH of Alkali absorption liquid is 12.5-13.5 in alkali adsorption tower 5, reaction terminating；The admission line of the first alkali adsorption tower 5 is closed, and
Finished product liquor natrii hypochloritis in first alkali adsorption tower 5 is produced；Then, it regard the second alkali adsorption tower 7 as level-one Alkali absorption
Tower, third alkali adsorption tower 9 are used as second level alkali adsorption tower, and the first alkali adsorption tower 5 is used as stand-by still, repeat above-mentioned Alkali absorption operation；
When semi-finished product liquor natrii hypochloritis's qualification in the second alkali adsorption tower 7, the admission line of the second alkali adsorption tower 7 is closed；Again
It is secondary, it regard third alkali adsorption tower 9 as level-one alkali adsorption tower, the first alkali adsorption tower 5 is used as second level alkali adsorption tower, the second alkali adsorption tower
7 are used as stand-by still, and sodium hydroxide solution is put into the first alkali adsorption tower 5 as two-level absorption tower cyclic absorption, is continued with this
It repeats aforesaid operations and realizes that continuous, switching of three alkali adsorption towers use.
Claims (1)
1. a kind of device of Cyanuric Chloride tail gas separation comprehensive utilization, which is characterized in that the Cyanuric Chloride tail gas separation is comprehensive
Closing the device utilized includes dust-extraction unit, condensing unit and Alkali absorption device；
The dust-extraction unit includes bag filter (1), and Cyanuric Chloride tail gas enters cloth bag through bag filter air inlet (2)
Deduster (1), Cyanuric Chloride tail gas realize that solid-state Cyanuric Chloride is separated with gas chlorination cyanogen, chlorine in bag filter (1),
Solid-state Cyanuric Chloride is discharged from bag filter feed opening (4), gas chlorination cyanogen and chlorine through bag filter gas outlet (3) into
Enter in condensing unit；
The condensing unit includes the first condenser (11), the second condenser (12) and collector (13)；Bag filter goes out
Port (3) is connected with the air inlet of the first condenser (11), and gas enters the tube layer of the first condenser (11), cooling medium warp
Cross the shell of the first condenser (11)；The gas outlet of first condenser (11) is connected with the air inlet of the second condenser (12),
The shell of the second condenser (12) is entered back by primary condensed gas, cooling medium passes through the pipe of the second condenser (12)
Layer；The outlet of second condenser (12) is connected with collector (13) entrance, collector (13) gas outlet and Alkali absorption device phase
Even, liquid cyanogen chloride enters collector (13) bottom, and residual gas is gone successively in Alkali absorption device；
The Alkali absorption device includes the first alkali adsorption tower (5), the second alkali adsorption tower (7) and third alkali adsorption tower (9), each
Alkali adsorption tower changes between level-one alkali adsorption tower, second level alkali adsorption tower, stand-by still；First alkali adsorption tower (5) bottom and top are logical
Piping is connected, and pipeline is equipped with first circulation pump (6), realizes alkali interior circulation in the first alkali adsorption tower (5)；First alkali is inhaled
It receives and is equipped with gas vent at the top of tower (5), switched between the first tail gas gas outlet and cyanogen chloride exhaust outlet by valve；First
Tail gas gas outlet is connected by pipeline with the second tail gas air intake of the second alkali adsorption tower (7)；Cyanogen chloride exhaust outlet and trimerization
Feed(raw material)inlet is connected in chlorine cyanogen process；Internal recycle pipeline connection alkali is passed through pipeline, is controlled by valve to the first alkali adsorption tower
(5) lye is added in；The pipeline connection type of second alkali adsorption tower (7) and third alkali adsorption tower (9) and the first alkali adsorption tower (5)
Pipeline connection type it is identical；From bag filter gas outlet (3) come out tail gas by pipeline through the first tail gas air intake into
Enter into the first alkali adsorption tower (5)；The gas come out at the top of from third alkali adsorption tower (9), into Cyanuric Chloride technique as former
Material enters the first alkali adsorption tower (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821986421.6U CN209378637U (en) | 2018-11-29 | 2018-11-29 | A kind of device of Cyanuric Chloride tail gas separation comprehensive utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821986421.6U CN209378637U (en) | 2018-11-29 | 2018-11-29 | A kind of device of Cyanuric Chloride tail gas separation comprehensive utilization |
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| CN209378637U true CN209378637U (en) | 2019-09-13 |
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| CN201821986421.6U Active CN209378637U (en) | 2018-11-29 | 2018-11-29 | A kind of device of Cyanuric Chloride tail gas separation comprehensive utilization |
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