CN217041657U - Filtering and impurity removing device in chloromethane synthesis process - Google Patents
Filtering and impurity removing device in chloromethane synthesis process Download PDFInfo
- Publication number
- CN217041657U CN217041657U CN202220600888.2U CN202220600888U CN217041657U CN 217041657 U CN217041657 U CN 217041657U CN 202220600888 U CN202220600888 U CN 202220600888U CN 217041657 U CN217041657 U CN 217041657U
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- China
- Prior art keywords
- filter screen
- shell
- layer
- screen layer
- methyl chloride
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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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- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000001914 filtration Methods 0.000 title claims abstract description 30
- 239000012535 impurity Substances 0.000 title claims abstract description 20
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012856 packing Methods 0.000 claims abstract description 19
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 16
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 16
- 229940050176 methyl chloride Drugs 0.000 claims abstract description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 15
- 238000010926 purge Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 9
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 239000006260 foam Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model relates to a synthesis of methyl chloride specifically is a can high-efficiently get rid of low polymer siloxane, avoid the heat exchanger frequently to examine the methyl chloride synthesis process in the clearance filter edulcoration device. Including shell and the filtration of setting in the shell inside, filtration includes filter screen layer, packing layer and silk screen demister, and the filter screen layer is the hollow structure of multilayer filter screen compression formula, and the packing layer setting is in the inside cavity of filter screen layer, and the packing of packing layer is polytetrafluoroethylene pall ring, and silk screen demister sets up in the top of filter screen layer, and the below that lies in the filter screen layer on the shell lateral wall is provided with the inlet pipeline, and the shell upper end is provided with the export pipeline. The utility model discloses a filter screen layer, packing layer and silk screen demister carry out tertiary filtration to the thick chloromethane that contains siloxane after the chloromethane gets into follow-up cooling arrangement via the export pipeline and contain impurity less, can prolong cooling arrangement's clearance cycle.
Description
Technical Field
The utility model relates to a synthesis of methyl chloride specifically is a can high-efficiently get rid of low polymer siloxane, avoid the heat exchanger frequently to examine the methyl chloride synthesis process in the clearance filter edulcoration device.
Background
In an organic silicon production system, oligosiloxane generated by methyl chloride synthesis reaction enters a cooler along with gas-phase methyl chloride, and is flocculated into a solid state in the cooling process to block a heat exchange hole of a condenser (the traditional methyl chloride cooling device is a round block hole type graphite heat exchanger).
The main treatment means adopted at present is to perform disassembly, inspection and cleaning on the heat exchanger to remove blocking impurities, and the service life of equipment is reduced due to frequent disassembly and inspection of the equipment; or install the edulcoration equipment, common edulcoration equipment is the filter, and the filter is installed in the front of heat exchanger, and the inside filter core filter area of filter is little, and the clearance is frequent, influences the long period operation of equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem to a can high-efficiently get rid of oligosiloxane, avoid the heat exchanger frequently to examine the filtration edulcoration device in the methyl chloride synthesis process of clearance.
The utility model provides a problem, the technical scheme of adoption is:
the utility model provides a filter edulcoration device in synthetic process of methyl chloride, includes the shell and sets up the filtration inside the shell, and the filtration includes filter screen layer, packing layer and silk screen demister, and the filter screen layer is the hollow structure of multilayer filter screen compact form, and the packing layer setting is in the inside cavity of filter screen layer, and the packing of packing layer is polytetrafluoroethylene pall ring, and the silk screen demister sets up in the top of filter screen layer, and the below that lies in the filter screen layer on the shell lateral wall is provided with the inlet pipeline, and the shell upper end is provided with outlet pipeline.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are:
the coarse chloromethane containing siloxane is subjected to three-stage filtration through the filter screen layer, the filler layer and the screen demister, and then the chloromethane entering the subsequent cooling equipment through the outlet pipeline contains less impurities, so that the cleaning period of the cooling equipment can be prolonged.
Secondly, through the three-stage filtration and the multilayer structure of the filter screen layer, the internal filtration area is increased, the filtration efficiency is high, and frequent disassembly and cleaning are avoided.
The device is small in size, long in running period, convenient to disassemble, examine and clean, short in cleaning time and low in maintenance investment.
Preferably, the present invention further provides:
a purging pipeline is arranged at the position, opposite to the filter screen layer, on the outer side wall of the shell; and back blowing the impurities on the filter screen layer.
The lower end of the shell is provided with a drain pipeline; and (4) discharging the swept impurities.
An observation hole is formed in the outer side wall of the shell; and observing the internal working condition of the device.
The wire mesh demister is a wire mesh block consisting of a polytetrafluoroethylene wire mesh and a polytetrafluoroethylene grid; acid foam in the medium can be removed while impurities are filtered.
The filter screen of the filter screen layer is a polytetrafluoroethylene screen.
The shell is of an upper and lower split structure.
Drawings
FIG. 1 is a schematic structural diagram of a filtration and impurity removal device in a chloromethane synthesis process according to an embodiment of the present invention;
fig. 2 is a sectional view of fig. 1.
In the figure: a housing 1; a wire mesh demister 2; a screen layer 3; a filler layer 4; an inlet line 5; an outlet line 6; a purge line 7; a drain line 8; and a support 9.
The specific implementation mode is as follows:
the invention will be further described with reference to the following examples, which are intended only for better understanding of the invention and therefore do not limit the scope of the invention.
Referring to fig. 1, a filtration and impurity removal device in methyl chloride synthesis process comprises a shell 1 and a filtration structure installed inside the shell 1, wherein the shell 1 is of an upper and lower split structure, the shell 1 is made of steel lining PTFE, a support 9 is installed in the middle of the inner side wall of the shell 1, the filtration structure of the shell 1 comprises a filter screen layer 3, a packing layer 4 and a screen foam remover 2, the filter screen layer 3 is installed at the upper end of the support 9, so that the filter screen layer 3 is suspended inside the shell 1, the filter screen layer 3 is of a multi-layer filter screen compression type hollow structure, the filter screen of the filter screen layer 3 is a polytetrafluoroethylene screen, the packing layer 4 is arranged in a cavity inside the filter screen layer 3, the packing of the packing layer 4 is a polytetrafluoroethylene pall ring, the screen foam remover 2 is installed above the filter screen layer 3, the screen foam remover 2 is a screen block formed by the polytetrafluoroethylene screen and a polytetrafluoroethylene grid, the tetrafluoroethylene grid is used as a framework, the polytetrafluoroethylene silk screen is fixed outside the polytetrafluoroethylene grid after being laminated in multiple layers, and acid foam in the medium can be removed while impurities are filtered; the below that lies in filter screen layer 3 on the 1 lateral wall of shell is provided with inlet line 5, 1 upper end of shell is provided with outlet line 6, be provided with on 1 lateral wall of shell with filter screen layer 3's relative position and sweep pipeline 7, sweep the external nitrogen gas of pipeline 7, carry out the blowback to the impurity on the filter screen layer 3, the lower extreme of shell 1 is provided with the clean-up pipeline 8, the impurity that the clean-up swept down is provided with the observation hole on the lateral wall of shell 1, the inside behavior of viewing device.
During the use, siloxane-containing crude chloromethane enters from the inlet pipeline 5, is subjected to primary filtration through the filter screen layer 3, then enters the packing layer 4 to be subjected to secondary filtration, is subjected to tertiary filtration through the wire mesh demister 2, is sent out from the outlet pipeline 6, and then enters the subsequent cooling equipment through the pipeline.
The utility model discloses a filter screen layer 3, packing layer 4 and silk screen demister 2 carry out tertiary filtration back to siloxane-containing thick chloromethane and contain impurity less via outlet pipe 6 entering follow-up cooling arrangement's chloromethane, can prolong cooling arrangement's clearance cycle, through tertiary filtration and filter screen layer 3's multilayer structure, increase inside filter area, filtration efficiency is high, avoid frequently dismantling the washing, the device is small, the cycle length is long, it is convenient to overhaul the clearance, the clearance time is short, it drops into lowly to overhaul.
The above description is only a preferred and practical embodiment of the present invention, and is not intended to limit the scope of the present invention, which is intended to be encompassed by the present invention, unless otherwise indicated by the appended claims.
Claims (7)
1. The utility model provides a filter edulcoration device in methyl chloride synthesis process, includes the shell and sets up the filtration inside the shell, its characterized in that: the filtration includes filter screen layer, packing layer and silk screen demister, and the filter screen layer is the hollow structure of multilayer filter screen pressing mode, and the packing layer sets up in the inside cavity of filter screen layer, and the packing of packing layer is polytetrafluoroethylene pall ring, and the silk screen demister sets up in the top of filter screen layer, and the below that lies in the filter screen layer on the shell lateral wall is provided with the inlet pipeline, and the shell upper end is provided with outlet pipeline.
2. The device for filtering and removing impurities in the methyl chloride synthesis process according to claim 1, which is characterized in that: and a purging pipeline is arranged on the outer side wall of the shell at a position opposite to the filter screen layer.
3. The device for filtering and removing impurities in the methyl chloride synthesis process according to claim 1, which is characterized in that: the lower end of the shell is provided with a drain pipeline.
4. The device for filtering and removing impurities in the methyl chloride synthesis process according to claim 1, which is characterized in that: the outer side wall of the shell is provided with an observation hole.
5. The device for filtering and removing impurities in the methyl chloride synthesis process according to claim 1, which is characterized in that: the wire mesh demister is a wire mesh block consisting of a polytetrafluoroethylene wire mesh and a polytetrafluoroethylene grid.
6. The device for filtering and removing impurities in the methyl chloride synthesis process according to claim 1, which is characterized in that: the filter screen of the filter screen layer is a polytetrafluoroethylene screen mesh.
7. The device for filtering and removing impurities in the methyl chloride synthesis process according to claim 1, which is characterized in that: the shell is of an upper and lower split structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220600888.2U CN217041657U (en) | 2022-03-19 | 2022-03-19 | Filtering and impurity removing device in chloromethane synthesis process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220600888.2U CN217041657U (en) | 2022-03-19 | 2022-03-19 | Filtering and impurity removing device in chloromethane synthesis process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217041657U true CN217041657U (en) | 2022-07-26 |
Family
ID=82491266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220600888.2U Active CN217041657U (en) | 2022-03-19 | 2022-03-19 | Filtering and impurity removing device in chloromethane synthesis process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217041657U (en) |
-
2022
- 2022-03-19 CN CN202220600888.2U patent/CN217041657U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063305 Nanpu Development Zone, Hebei, Tangshan City Patentee after: Tangshan Sanyou Silicon Industry Co.,Ltd. Address before: 063305 Nanpu Development Zone, Hebei, Tangshan City Patentee before: SANYOU SILICON INDUSTRY Co.,Ltd. |