CN208829465U - A kind of device of twin flue embrane method denitration - Google Patents
A kind of device of twin flue embrane method denitration Download PDFInfo
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- CN208829465U CN208829465U CN201820566916.7U CN201820566916U CN208829465U CN 208829465 U CN208829465 U CN 208829465U CN 201820566916 U CN201820566916 U CN 201820566916U CN 208829465 U CN208829465 U CN 208829465U
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- pipeline
- embrane method
- electrolytic cell
- outlet
- freezing chamber
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Abstract
The utility model relates to a kind of devices of twin flue embrane method denitration, comprising: salt dissolving dissolved salt unit (1), storage tank (2), primary purification refrigeration system and secondary refining cooling system；The primary purification cooling system includes: electrolytic cell I(3), embrane method is except nitre device (5), freezing chamber (6) and centrifuge (7)；The secondary refining cooling system includes: electrolytic cell II(9), embrane method is except nitre device (5), freezing chamber (6) and centrifuge (7)；The electrolytic cell II(9) it is connected with storage tank (2) by pipeline, electrolytic cell II(9) it is connected except nitre device (5) by pipeline with embrane method, electrolytic cell II(9) it further include water inlet (91) and water outlet (92)；Freezing chamber (6) removes nitre device (5) with embrane method and is connected by pipeline；Centrifuge (7) is connected by pipeline with freezing chamber (6).The utility model has the advantages that high-efficient and device is easy to operate.
Description
Technical field
The utility model relates to chloralkali process engineering device technique fields, and in particular to a kind of device of twin flue embrane method denitration.
Background technique
At present both at home and abroad there are many method of removing sulfate anion in brine system, and it is more commonly used have barium chloride method, freezing,
Calcium Chloride Method, embrane method denitration.All there is operating cost height, generation pollution environment to some extent for traditional chemical denitrating technique
Waste residue the problems such as, and in subtractive process addition to the harmful ion of ionic membrane.Embrane method denitration be substantially film concentration+it is cold
Freeze denitration, embrane method denitration technology is realized the separation of sulfate radical by physical method using macromolecule non-porous film, made in dense salt made from earth containing a comparatively high percentage of sodium chloride water
Sulfate radical content reaches 40g/l or so, then sulfate crystal is precipitated by freezing in dense salt made from earth containing a comparatively high percentage of sodium chloride water, by centrifuge separation from
Removing comes out in brine system.
Nitrate removal technology by membrane is Current Domestic, international technique the most perfect, and technical process is without using poisonous and hazardous
Refining agent is added to the harmful foreign ion of ionic membrane not into brine system, does not generate solid, liquid waste, operational management, behaviour
Make easy to maintain, saving production cost.Using freezing technique of nitrate removal, brine is settled, is centrifugated after circulating frozen,
Sulfate radical is separated from brine in the form of saltcake, and low nitre halogen is saturated for brine section and refines, after saltcake is evaporated, dried
By-product saltcake.
Freezing technique of nitrate removal causes freezing electric consumption high because needing a large amount of cooling capacity to freeze brine, year consumption freezing electricity at
About 15,000,000 yuan, hundred caustic soda of folding per ton freeze about 70 yuan of brine electric cost, after the chlor-alkali plant membrane system of in August, 2016 is shut down,
It being reduced with brine ratio, freezing electrolysis light salt brine amount increases, and hundred caustic soda of folding per ton freezing brine electric cost increases to about 115 yuan,
Production of caustic soda increased costs.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of device of twin flue embrane method denitration,
Solve the problems, such as that common technique of nitrate removal power consumption is high, water consumption is big and at high cost.
The purpose of this utility model is achieved through the following technical solutions:
A kind of device of twin flue embrane method denitration, comprising: salt dissolving dissolved salt unit, storage tank, primary purification refrigeration system and two
Secondary purification cooling system；
The storage tank: storage tank is connected with salt dissolving dissolved salt unit by pipeline, further includes outlet I and outlet II on storage tank；
The primary purification cooling system includes: electrolytic cell I, embrane method except nitre device, freezing chamber and centrifuge；Electrolytic cell I
It is connected with storage tank by pipeline, and electrolytic cell I is connected with concentraing pond by pipeline；Embrane method passes through pipeline and electricity except nitre device
Solution slot I is connected, and it further includes high caldo outlet, the outlet of low caldo that embrane method, which is removed on nitre device,；Freezing chamber and embrane method are except nitre dress
It sets and is connected by pipeline；Centrifuge is connected by pipeline with freezing chamber；
The secondary refining cooling system includes: electrolytic cell II, embrane method except nitre device, freezing chamber and centrifuge；The electricity
Solution slot II is connected with storage tank by pipeline, and electrolytic cell II removes nitre device with embrane method and is connected by pipeline, and electrolytic cell II is also wrapped
Include inlet and outlet；Freezing chamber removes nitre device with embrane method and is connected by pipeline；Centrifuge passes through pipeline and freezing chamber phase
Connection.
Further, the outlet I is connected by pipeline with electrolytic cell I；The outlet II passes through pipeline and electrolytic cell
II is connected.
Further, the high caldo outlet is connected by pipeline with freezing chamber；The low caldo outlet passes through
Pipeline is connected with the water inlet of electrolytic cell II；The water outlet of the electrolytic cell II is with embrane method except the water inlet end of nitre device is connected
It is logical.
The beneficial effects of the utility model are:
1. purification freezing during the preparation process, is carried out using twin flue access, the purity is high for the saltcake that freezing and crystallizing obtains,
Impurity content is few, and high income；Make the feelings of the dense salt made from earth containing a comparatively high percentage of sodium chloride water of same flow in the case where existing embrane method is except the immovable situation of nitre device
Under condition, more sodium chloride crystals are accordingly precipitated, improves the production capacity that embrane method removes nitre device, preferably ensure that qualified sulfuric acid
The salt water of sodium index；
2. preparation method is simple, worker operation is easier, and operability is stronger, and device operation is more steady efficient, dress
It sets the utilization of capacity and rate of load condensate is higher compared with existing apparatus；Water consumption power consumption reduces in preparation process, reduces energy consumption, reduces cost；
Do not add pollution auxiliary agent during the preparation process, it is environmentally friendly, also reduce cost；It is high-efficient in preparation process, with routine
Except nitre device compares yield in unit time with higher and working efficiency；
3. twin flue embrane method technique of nitrate removal uses two sets of processing systems, high-purity height can be prepared in conjunction with production in the two
The saltcake of yield can also save process cycle during the preparation process, can also recycle low caldo, improve saltcake yield.
Detailed description of the invention
Fig. 1 is apparatus of the present invention schematic diagram；
In figure, 1- salt dissolving dissolved salt unit, 2- storage tank, the outlet the 21- outlet I, 22- II, 3- electrolytic cell I, 5- embrane method is except nitre dress
It sets, the outlet of 51- high caldo, the low caldo outlet 52-, 6- freezing chamber, 7- centrifuge, 8- concentraing pond, 9- electrolytic cell II, 91-
Water inlet, 92- water outlet.
Specific embodiment
Technical solution of the present invention is described in further detail combined with specific embodiments below, but protection scope of the present invention is not
It is confined to as described below.
As shown in Figure 1, a kind of device of twin flue embrane method denitration, comprising: salt dissolving dissolved salt unit 1, storage tank 2, primary purification
Refrigeration system and secondary refining cooling system；
The storage tank 2: storage tank 2 is connected with salt dissolving dissolved salt unit 1 by pipeline, further includes outlet 21 He of I on storage tank 2
Export II 22；
The primary purification cooling system includes: electrolytic cell I 3, embrane method except nitre device 5, freezing chamber 6 and centrifuge 7；Electricity
Solution slot I 3 is connected with storage tank 2 by pipeline, and electrolytic cell I 3 is connected with concentraing pond 8 by pipeline；Embrane method removes nitre device 5
It is connected by pipeline with electrolytic cell I 3, it further includes high caldo outlet 51, low caldo outlet 52 that embrane method, which is removed on nitre device 5,；
Freezing chamber 6 is with embrane method except nitre device 5 is connected by pipeline；Centrifuge 7 is connected by pipeline with freezing chamber 6；
The secondary refining cooling system includes: electrolytic cell II 9, embrane method except nitre device 5, freezing chamber 6 and centrifuge 7；Institute
It states electrolytic cell II 9 to be connected with storage tank 2 by pipeline, electrolytic cell II 9 removes nitre device 5 with embrane method and is connected by pipeline, electricity
Solving slot II 9 further includes water inlet 91 and water outlet 92；Freezing chamber 6 is with embrane method except nitre device 5 is connected by pipeline；Centrifuge 7
It is connected by pipeline with freezing chamber 6.
Specifically, the outlet I 21 is connected by pipeline with electrolytic cell I 3；The outlet II 22 by pipeline with
Electrolytic cell II 9 is connected.
Specifically, the high caldo outlet 51 is connected by pipeline with freezing chamber 6；The low caldo outlet 52 is logical
Piping is connected with the water inlet 91 of electrolytic cell II 9；The water outlet 92 and embrane method of the electrolytic cell II 9 is except nitre device 5
Water inlet end is connected.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model
It is required that protection scope in.
Claims (4)
1. a kind of device of twin flue embrane method denitration characterized by comprising salt dissolving dissolved salt unit (1), storage tank (2), primary essence
Fine frozen system and secondary refining cooling system；
The storage tank (2): storage tank (2) is connected with salt dissolving dissolved salt unit (1) by pipeline, further includes outlet I on storage tank (2)
(21) and outlet II(22)；
The primary purification cooling system includes: electrolytic cell I (3), embrane method except nitre device (5), freezing chamber (6) and centrifuge
(7)；Electrolytic cell I (3) is connected with storage tank (2) by pipeline, and electrolytic cell I (3) is connected with concentraing pond (8) by pipeline
It is logical；Embrane method is connected except nitre device (5) pass through pipeline with electrolytic cell I (3), and it further includes high caldo that embrane method, which is removed on nitre device (5),
Export (51), low caldo outlet (52)；Freezing chamber (6) removes nitre device (5) with embrane method and is connected by pipeline；Centrifuge (7)
It is connected by pipeline with freezing chamber (6)；
The secondary refining cooling system includes: electrolytic cell II (9), embrane method except nitre device (5), freezing chamber (6) and centrifuge
(7)；The electrolytic cell II (9) is connected with storage tank (2) by pipeline, and electrolytic cell II (9) passes through with embrane method except nitre device (5)
Pipeline is connected, and electrolytic cell II (9) further includes water inlet (91) and water outlet (92)；Freezing chamber (6) and embrane method remove nitre device
(5) it is connected by pipeline；Centrifuge (7) is connected by pipeline with freezing chamber (6).
2. a kind of device of twin flue embrane method denitration according to claim 1, which is characterized in that the outlet I(21) it is logical
Piping is connected with electrolytic cell I (3)；The outlet II(22) it is connected by pipeline with electrolytic cell II (9).
3. a kind of device of twin flue embrane method denitration according to claim 1, which is characterized in that the high caldo outlet
(51) it is connected by pipeline with freezing chamber (6)；The low caldo outlet (52) by pipeline and electrolytic cell II (9) into
The mouth of a river (91) is connected.
4. a kind of device of twin flue embrane method denitration according to claim 1, which is characterized in that the electrolytic cell II (9)
Water outlet (92) and embrane method be connected except the water inlet end of nitre device (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820566916.7U CN208829465U (en) | 2018-04-20 | 2018-04-20 | A kind of device of twin flue embrane method denitration |
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| CN201820566916.7U CN208829465U (en) | 2018-04-20 | 2018-04-20 | A kind of device of twin flue embrane method denitration |
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| CN208829465U true CN208829465U (en) | 2019-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455775A (en) * | 2018-04-20 | 2018-08-28 | 江苏安邦电化有限公司 | A kind of twin flue embrane method denitrification apparatus and application method |
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2018
- 2018-04-20 CN CN201820566916.7U patent/CN208829465U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455775A (en) * | 2018-04-20 | 2018-08-28 | 江苏安邦电化有限公司 | A kind of twin flue embrane method denitrification apparatus and application method |
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Address after: No. 30, Chemical Road, Huaian, Jiangsu Province Patentee after: Andao mai'anbang (Jiangsu) Co., Ltd Address before: No. 30, Chemical Road, Huaian, Jiangsu Province Patentee before: JIANGSU ANPON ELECTROCHEMICAL Co.,Ltd. |