CN219815840U - Chlorinated paraffin by-product purification device - Google Patents
Chlorinated paraffin by-product purification device Download PDFInfo
- Publication number
- CN219815840U CN219815840U CN202321238887.9U CN202321238887U CN219815840U CN 219815840 U CN219815840 U CN 219815840U CN 202321238887 U CN202321238887 U CN 202321238887U CN 219815840 U CN219815840 U CN 219815840U
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- CN
- China
- Prior art keywords
- paraffin
- tail gas
- hydrogen chloride
- chlorinated paraffin
- hydrochloric acid
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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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- 239000012188 paraffin wax Substances 0.000 title claims abstract description 113
- 239000006227 byproduct Substances 0.000 title claims abstract description 31
- 238000000746 purification Methods 0.000 title description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 113
- 239000007789 gas Substances 0.000 claims abstract description 93
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 48
- 239000007921 spray Substances 0.000 claims abstract description 41
- 238000005406 washing Methods 0.000 claims abstract description 35
- 238000010521 absorption reaction Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000005660 chlorination reaction Methods 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 16
- 238000012856 packing Methods 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 26
- 239000000460 chlorine Substances 0.000 abstract description 26
- 229910052801 chlorine Inorganic materials 0.000 abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000009835 boiling Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 229940057995 liquid paraffin Drugs 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- -1 hoses Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a chlorinated paraffin byproduct purifying device, which is characterized in that tail gas containing hydrogen chloride, chlorine and organic matters output by a paraffin chlorination kettle is sprayed with paraffin through a paraffin spray tower, the chlorine in the tail gas is reacted with the paraffin by utilizing the temperature carried by the tail gas, so that the chlorine is removed, the treated tail gas is introduced into a washing kettle to remove most of the organic matters carried by the tail gas, paraffin liquid drops carried by the tail gas are condensed and removed through a condenser, clean hydrogen chloride gas is obtained, and finally the obtained hydrogen chloride gas is input into a hydrogen chloride absorption tower to be absorbed by water to obtain hydrochloric acid meeting the standard.
Description
Technical Field
The utility model relates to the technical field of chlorine removal, in particular to a chlorinated paraffin byproduct purifying device.
Background
Chlorinated paraffins, also known as chlorohydrocarbons, are a pale yellow to orange-yellow viscous liquid, insoluble in water, and soluble in most organic solvents. Is C 14 -C 30 The chlorinated paraffin is mainly used as a flame retardant and a polyvinyl chloride plasticizer, and is widely applied to the production of products such as cable materials, floor materials, hoses, artificial leather, rubber, polyurethane and the like and additives such as paint, lubricating oil and the like.
The chlorinated paraffin production process can produce a large amount of HCl tail gas, and the acid value is very high, and the existence of HCl gas can make chlorinated paraffin decompose simultaneously, consequently needs the desorption, and can carry substances such as partial chlorine, VOCs in the HCl tail gas, if directly discharge, not only can cause the waste of resource, also can cause harmful effect to atmospheric environment, does not accord with safety and environmental protection requirement. Therefore, measures are taken by chlorinated paraffin production enterprises in the production process to recycle the discharged HCl tail gas, and a large amount of byproduct hydrochloric acid is sold, so that the comprehensive utilization of resources is achieved.
The existing chlorinated paraffin byproduct hydrochloric acid has the common phenomenon of peculiar smell, and the reason for the peculiar smell is caused by the fact that the free chlorine in the byproduct hydrochloric acid is higher and the free chlorine in the byproduct hydrochloric acid is emitted; the free chlorine in the byproduct hydrochloric acid is limited in gas-liquid phase reaction mass transfer rate in the chlorination reaction process, chlorine gas is introduced into the paraffin solution and escapes from the paraffin solution without completely reacting with the paraffin, and the chlorine gas content in the tail gas at the outlet of the chlorination reaction kettle is high, so that part of the chlorine gas is dissolved in the byproduct hydrochloric acid in the subsequent absorption and spraying processes of the tail gas, further, the content of free chlorine, paraffin and other organic matters of the byproduct hydrochloric acid is high, and the product quality of the byproduct hydrochloric acid is reduced.
Disclosure of Invention
The utility model provides a chlorinated paraffin byproduct purifying device, which is used for solving the problem of low product quality of byproduct hydrochloric acid caused by high content of free chlorine, paraffin and other organic matters in the conventional chlorinated paraffin byproduct hydrochloric acid.
The utility model provides a chlorinated paraffin byproduct purifying device which comprises a paraffin chlorination kettle, a paraffin spray tower, a washing kettle, a condenser and a hydrogen chloride absorption tower which are sequentially connected in series;
the upper part in the spray tower is provided with a spray layer, the bottom is provided with a liquid storage tank for receiving paraffin absorption liquid, and the spray layer is connected with the spray layer through a first circulating pump;
an air duct is arranged in the washing kettle, one end of the air duct is communicated with the air input end of the washing kettle, and the other end of the air duct is close to the inner bottom wall of the washing kettle and is communicated with an air distribution pipe which is horizontally arranged.
Optionally, a cyclone separator is also arranged between the condenser and the hydrogen chloride absorption tower.
Optionally, an active carbon adsorption tower is arranged between the cyclone separator and the hydrogen chloride absorption tower.
Optionally, the gas distribution pipe comprises a main pipe and a plurality of branch pipes communicated with the main pipe;
the branch pipe is horizontally arranged, and the lower surface is provided with a plurality of exhaust holes.
Optionally, the washing kettle is connected in series with a second circulating pump to form a loop.
Optionally, the hydrogen chloride absorption tower comprises a spraying area at the upper part and a hydrochloric acid storage tank at the bottom, and a packing layer is arranged between the spraying area and the hydrochloric acid storage tank; the hydrochloric acid storage tank is connected with the spraying area through a third circulating pump.
Optionally, the packing in the packing layer is structured packing.
The utility model provides a chlorinated paraffin byproduct purifying device, which is characterized in that tail gas containing hydrogen chloride, chlorine and organic matters output by a paraffin chlorination kettle is sprayed with paraffin through a paraffin spray tower, the chlorine in the tail gas is reacted with the paraffin by utilizing the temperature carried by the tail gas, so that the chlorine is removed, the treated tail gas is introduced into a washing kettle to remove most of organic matters carried in the tail gas, further, paraffin liquid drops carried in the tail gas are condensed and removed through a condenser to obtain clean hydrogen chloride gas, and finally the obtained hydrogen chloride gas is input into a hydrogen chloride absorption tower to be circularly absorbed by utilizing water to finally obtain hydrochloric acid meeting the standard.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a chlorinated paraffin byproduct purifying apparatus according to an embodiment of the utility model;
FIG. 2 is a schematic diagram of a chlorinated paraffin by-product purification apparatus according to another embodiment of the utility model;
FIG. 3 is a schematic diagram of a chlorinated paraffin by-product purification apparatus according to yet another embodiment of the utility model;
fig. 4a is a schematic bottom view of a gas distribution tube according to an embodiment of the present utility model;
FIG. 4b is a schematic top view of a gas distribution tube according to an embodiment of the present utility model;
fig. 5 is a schematic diagram of a chlorinated paraffin byproduct purifying apparatus according to still another embodiment of the utility model.
Reference numerals illustrate:
1. a paraffin chlorination kettle; 2. a spray tower; 3. a washing kettle; 4. a condenser; 5. a hydrogen chloride absorption column; 6. a cyclone separator; 7. an activated carbon adsorption tower; 21. spraying a layer; 22. a liquid storage pool; 23. a first circulation pump; 31. an air duct; 32. an air distribution pipe; 33. a second circulation pump; 51. a spraying area; 52. a hydrochloric acid storage tank; 53. a filler layer; 54. a third circulation pump; 311. a main pipe; 312. a branch pipe; 3121. and an exhaust hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are also within the scope of the utility model.
As shown in fig. 1, the utility model provides a chlorinated paraffin byproduct purifying device, which comprises a paraffin chlorination kettle 1, a paraffin spray tower 2, a washing kettle 3, a condenser 4 and a hydrogen chloride absorption tower 5 which are sequentially connected in series;
the upper part in the spray tower 2 is provided with a spray layer 21, the bottom is provided with a liquid storage pool 22 for receiving paraffin absorption liquid, and the spray layer 21 is connected with the spray layer 21 through a first circulating pump 23;
an air duct 31 is arranged in the washing kettle 3, one end of the air duct 31 is communicated with the air input end of the washing kettle 3, and the other end is close to the inner bottom wall of the washing kettle 3 and is communicated with an air distribution pipe 32 which is horizontally arranged.
In the utility model, liquid paraffin with the lowest temperature of boiling range being more than 180 ℃ is sprayed in the paraffin spray tower 2, because the tail gas discharged from the paraffin chlorination kettle 1 has high temperature (generally 70-100 ℃), the tail gas entering the paraffin spray tower 2 carries high temperature, so that chlorine in the tail gas can contact with sprayed paraffin to react to generate corresponding chlorinated paraffin, and chlorine in the tail gas is removed. The paraffin is liquid and is in a normal temperature state, and can also play a role in reducing the temperature of tail gas.
In the utility model, the washing kettle 3 is filled with paraffin of the same type as the paraffin spray tower 2, can absorb organic matters such as paraffin contained in tail gas output by the spray tower 2, and has the effect of further reducing the temperature of the tail gas.
In the present utility model, the condenser 4 is used for reducing the temperature of the tail gas, wherein the heat exchange medium is circulating cooling water, and the liquid paraffin used in the washing kettle 3 has a high boiling point, and is more easily condensed as the boiling point is higher, so that paraffin liquid drops contained in the tail gas can be condensed and removed when passing through the condenser 4. If the condensing effect is further improved, frozen brine with the temperature of-5 to 5 ℃ can be adopted.
When the paraffin chlorination reactor is used, tail gas (containing hydrogen chloride, chlorine and organic matters) discharged from the paraffin chlorination reactor 1 enters the paraffin spray tower 2, the paraffin spray tower 2 is contacted with the tail gas in a spraying way, and as the tail gas carries high temperature, the chlorine in the tail gas can react with sprayed paraffin in a contact way, the chlorine in the tail gas is removed, the paraffin sprayed by the spraying layer 21 falls into a liquid storage pool 22 at the bottom after the contact reaction between the tail gas and the top down, and then is pumped into the spraying layer for circulation through a first circulating pump 23.
Because paraffin carries out contact reaction with tail gas in the mode of spraying in paraffin spray tower 2, consequently there is a small amount of paraffin liquid drop to be inevitably mixed in the tail gas after washing that is output from paraffin spray tower 2, consequently the tail gas that is output from paraffin spray tower 2 reenters scrubbing cauldron 3, washs, holds the paraffin of the same kind as paraffin spray tower 2 in the scrubbing cauldron 3, and tail gas gets into air duct 31 and reenters gas distribution pipe 32 and discharges in scrubbing cauldron 3, is washed once more and is cooled down simultaneously, can further detach the organic matter such as paraffin that carries in the tail gas.
The tail gas after washing in the washing kettle 3 is basically free of chlorine and mainly contains hydrogen chloride and trace paraffin, and is condensed by the condenser 4, the heat exchange medium of the condenser 4 can be circulating cooling water used in factories, and paraffin liquid drops contained in the tail gas can be condensed and removed when passing through the condenser 4 due to the high boiling point of the paraffin. The condensed hydrogen chloride gas is then fed into the hydrogen chloride absorption column 5.
And (5) the hydrogen chloride gas enters a hydrogen chloride absorption tower 5 for circulating washing, and when the concentration of the hydrochloric acid is qualified, the hydrochloric acid is output.
The utility model provides a chlorinated paraffin byproduct purifying device, which is characterized in that tail gas containing hydrogen chloride, chlorine and organic matters output by a paraffin chlorination kettle 1 is sprayed with paraffin through a paraffin spray tower 2, the chlorine in the tail gas is reacted with the paraffin by utilizing the temperature carried by the tail gas, so that the chlorine is removed, the treated tail gas is introduced into a washing kettle 3 to remove most of the organic matters carried by the tail gas, paraffin liquid drops carried by the tail gas are condensed and removed through a condenser 4 to obtain clean hydrogen chloride gas, and finally the obtained hydrogen chloride gas is input into a hydrogen chloride absorption tower 5 to circularly absorb the hydrogen chloride gas by utilizing water to finally obtain hydrochloric acid meeting the standard.
As shown in fig. 2, optionally, a cyclone 6 is also provided between the condenser 4 and the hydrogen chloride absorption column 5.
In the utility model, since the tail gas is condensed by the condenser 4, the gaseous paraffin contained in the tail gas is condensed and removed due to the high boiling point of the paraffin, but trace paraffin is inevitably mixed into the gas, and the paraffin is condensed into tiny liquid drops or solid particles, so that the cyclone separator 6 is arranged to separate the trace paraffin out, thereby improving the purity of hydrogen chloride, further improving the purity of hydrochloric acid prepared by the cyclone separator and reducing the content of organic matters in the hydrochloric acid.
As shown in fig. 3, an activated carbon adsorption column 7 is optionally further provided between the cyclone 6 and the hydrogen chloride absorption column 5.
In the utility model, the activated carbon adsorption tower 7 is arranged to further purify the hydrogen chloride gas, thereby improving the purity of the hydrogen chloride.
As shown in fig. 4a and 4b, the gas distribution pipe 32 optionally includes a main pipe 311 and a plurality of branch pipes 312 communicating with the main pipe 311;
the branch pipe 312 is horizontally disposed, and a plurality of exhaust holes 3121 are opened at a lower surface.
In the present utility model, the exhaust hole 3121 is opened on the lower surface of the branch pipe 312, so that the tail gas can be firstly downward and then upward operated, thereby prolonging the residence time of the tail gas in the liquid paraffin, and further improving the absorption and washing efficiency.
As shown in fig. 5, alternatively, the tank 3 is connected in series with a second circulation pump 33 in a loop.
In the utility model, the washing kettle 3 and the second circulating pump 33 are connected in series to form a loop, and the paraffin in the washing kettle 3 is circulated by using the second circulating pump 33, so that the paraffin flows, convection is enhanced, and the stirring effect is realized.
As shown in fig. 5, the hydrogen chloride absorption tower 5 optionally comprises an upper spraying area 51 and a bottom hydrochloric acid storage tank 52, and a packing layer 53 is arranged between the spraying area 51 and the hydrochloric acid storage tank 52; the hydrochloric acid tank 52 is connected to the spray zone 51 by a third circulation pump 54.
Optionally, the packing in packing layer 53 is a structured packing.
According to the utility model, the resistance of the gas ascending from the tail gas can be reduced by adopting the structured packing, and the treatment efficiency is improved.
A chlorinated paraffin by-product purification device has the following working process:
when the paraffin chlorination reactor is used, tail gas (containing hydrogen chloride, chlorine and organic matters) discharged from the paraffin chlorination reactor 1 enters the paraffin spray tower 2, liquid paraffin with the lowest temperature of more than 180 ℃ in the boiling range is sprayed in the paraffin spray tower 2, because the tail gas discharged from the paraffin chlorination reactor 1 has high temperature (generally 70-100 ℃), the tail gas enters the paraffin spray tower 2 and contacts with liquid paraffin sprayed from top to bottom by the spray layer 21, chlorine in the tail gas can react with sprayed paraffin in a contact way because the tail gas carries high temperature, chlorine in the tail gas is removed, the paraffin sprayed by the spray layer 21 falls into a liquid storage pool 22 at the bottom after contacting with the tail gas from top to bottom, and then is pumped into the spray layer for circulation by the first circulating pump 23.
Because paraffin in the paraffin spray tower 2 is in contact reaction with tail gas in a spraying manner, a small amount of paraffin liquid drops are inevitably mixed in the washed tail gas output from the paraffin spray tower 2, so that the tail gas output from the paraffin spray tower 2 enters the washing kettle 3 again for washing, the paraffin of the same type as the paraffin spray tower 2 is contained in the washing kettle 3, the tail gas enters the air duct 31 and then enters the air distribution pipe 32 in the washing kettle 3, finally, the tail gas is discharged through the exhaust hole 3121, is washed again and is cooled, the paraffin and other organic matters carried in the tail gas can be further removed, meanwhile, the second circulating pump 33 is started, the paraffin in the washing kettle 3 is circulated, and the paraffin flows through circulation so as to play a role of stirring.
The tail gas after washing in the washing kettle 3 is basically free of chlorine and mainly contains hydrogen chloride and trace paraffin, and is condensed by the condenser 4, the heat exchange medium of the condenser 4 can be circulating cooling water used in factories, and paraffin liquid drops contained in the tail gas can be condensed and removed when passing through the condenser 4 due to the high boiling point of the paraffin.
The tail gas output from the condenser 4 is purified by the cyclone separator 6 to further improve the purity of the hydrogen chloride, and the paraffin contained in the tail gas is condensed and gathered under the low temperature condition because the temperature of the gas condensed by the condenser 4 is lower, and organic liquid drops or particles in the tail gas can be removed by the cyclone separator 4 when the tail gas is cold, so that clean hydrogen chloride gas is output. The hydrogen chloride gas is further purified by passing through an activated carbon adsorption tower 7, and the purified hydrogen chloride gas is fed into the hydrogen chloride adsorption tower 5.
The hydrogen chloride gas enters the hydrogen chloride absorption tower 5 and goes upward from bottom to top, the spraying area 51 sprays absorption liquid from top to bottom, the absorption liquid and the absorption liquid mainly contact and transfer mass in the packing layer, then the absorbed liquid is hydrochloric acid, dilute hydrochloric acid in the hydrochloric acid storage tank 52 is pumped into the spraying area 51 by the third circulating pump 54 for circulating washing in order to raise the concentration of the hydrochloric acid, and the hydrochloric acid is output when the concentration of the hydrochloric acid is qualified.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. The chlorinated paraffin byproduct purifying device is characterized by comprising a paraffin chlorination kettle (1), a paraffin spray tower (2), a washing kettle (3), a condenser (4) and a hydrogen chloride absorption tower (5) which are sequentially connected in series;
the upper part in the spray tower (2) is provided with a spray layer (21), the bottom is provided with a liquid storage pool (22) for receiving paraffin absorption liquid, and the spray layer (21) is connected with the spray layer (21) through a first circulating pump (23);
an air duct (31) is arranged in the washing kettle (3), one end of the air duct (31) is communicated with the air input end of the washing kettle (3), and the other end of the air duct is close to the inner bottom wall of the washing kettle (3) and is communicated with an air distribution pipe (32) which is horizontally arranged.
2. The chlorinated paraffin by-product purifying apparatus as claimed in claim 1, wherein a cyclone (6) is further provided between the condenser (4) and the hydrogen chloride absorption tower (5).
3. The chlorinated paraffin by-product purifying apparatus as claimed in claim 2, wherein an activated carbon adsorption tower (7) is further provided between the cyclone (6) and the hydrogen chloride absorption tower (5).
4. The chlorinated paraffin by-product purifying apparatus as claimed in claim 1, wherein the gas distribution pipe (32) includes a main pipe (311) and a plurality of branch pipes (312) communicating with the main pipe (311);
the branch pipe (312) is horizontally arranged, and a plurality of exhaust holes (3121) are formed on the lower surface.
5. The chlorinated paraffin by-product purifying apparatus as claimed in claim 1, wherein the washing tank (3) is connected in series with a second circulation pump (33) in a loop.
6. The chlorinated paraffin by-product purifying apparatus as claimed in claim 1, wherein the hydrogen chloride absorption tower (5) comprises an upper spraying area (51) and a bottom hydrochloric acid storage tank (52), a packing layer (53) is arranged between the spraying area (51) and the hydrochloric acid storage tank (52), and the hydrochloric acid storage tank (52) is connected with the spraying area (51) through a third circulating pump (54).
7. The chlorinated paraffin by-product purifying apparatus of claim 6, wherein the packing in the packing layer (53) is a structured packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321238887.9U CN219815840U (en) | 2023-05-22 | 2023-05-22 | Chlorinated paraffin by-product purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321238887.9U CN219815840U (en) | 2023-05-22 | 2023-05-22 | Chlorinated paraffin by-product purification device |
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| Publication Number | Publication Date |
|---|---|
| CN219815840U true CN219815840U (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321238887.9U Active CN219815840U (en) | 2023-05-22 | 2023-05-22 | Chlorinated paraffin by-product purification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117563393A (en) * | 2024-01-15 | 2024-02-20 | 潍坊春源化工有限公司 | Combined process and device for removing and purifying impurities containing free chlorine in hydrogen chloride |
-
2023
- 2023-05-22 CN CN202321238887.9U patent/CN219815840U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117563393A (en) * | 2024-01-15 | 2024-02-20 | 潍坊春源化工有限公司 | Combined process and device for removing and purifying impurities containing free chlorine in hydrogen chloride |
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