CN216023309U - Dechlorination device for chlorinated paraffin production - Google Patents
Dechlorination device for chlorinated paraffin production Download PDFInfo
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- CN216023309U CN216023309U CN202122367349.7U CN202122367349U CN216023309U CN 216023309 U CN216023309 U CN 216023309U CN 202122367349 U CN202122367349 U CN 202122367349U CN 216023309 U CN216023309 U CN 216023309U
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- dechlorination
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- chlorinated paraffin
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Abstract
The utility model relates to a dechlorination device for chlorinated paraffin production, which comprises a dechlorination kettle, wherein a packing chamber is arranged at the top of the dechlorination kettle, a plurality of through holes communicated with the packing chamber are formed in the dechlorination kettle, and the packing chamber is filled with packing; a liquid inlet pipe is arranged on the side wall of the filling chamber, and a liquid outlet of the liquid inlet pipe is provided with a liquid distribution disc facing the filling; the top of the packing chamber is also provided with a first pumping hole, and the first pumping hole is connected to a tail gas treatment system through a pipeline and a vacuum pump. The dechlorination kettle designed by the utility model can be pumped into a weak vacuum state by the vacuum pump, hydrochloric acid enters the dechlorination kettle from the liquid inlet pipe, a small amount of chlorine in the hydrochloric acid escapes under the action of the filler in the filler chamber and the circulating pump of the dechlorination kettle, and the hydrochloric acid is pumped out to the tail gas treatment device for absorption (the vacuum pump can be operated intermittently).
Description
Technical Field
The utility model relates to the technical field of chlorinated paraffin production, in particular to a dechlorination device for chlorinated paraffin production.
Background
The chlorinated paraffin is a chlorinated derivative of paraffin, has the advantages of low volatility, flame retardance, good electrical insulation, low price and the like, can be used as a flame retardant and a polyvinyl chloride plasticizer aid, and is widely used for producing products such as cable materials, floor materials, hoses, artificial leather, rubber and the like.
In the production process of chlorinated paraffin, the by-product saturated hydrochloric acid also contains a small amount of paraffin oil and free chlorine, which affects the quality of hydrochloric acid. Therefore, it is necessary to provide a device with simple structure for removing paraffin oil and free chlorine in saturated hydrochloric acid to meet the production requirement.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a dechlorination device for producing chlorinated paraffin.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the dechlorination device for producing the chlorinated paraffin comprises a dechlorination kettle, wherein a packing chamber is arranged at the top of the dechlorination kettle, a plurality of through holes communicated with the packing chamber are formed in the dechlorination kettle, and packing is filled in the packing chamber; a liquid inlet pipe is arranged on the side wall of the filling chamber, and a liquid outlet of the liquid inlet pipe is provided with a liquid distribution disc facing the filling; the top of the packing chamber is also provided with a first pumping hole, and the first pumping hole is connected to a tail gas treatment system through a pipeline and a vacuum pump.
In a preferred embodiment of the dechlorination apparatus for producing chlorinated paraffin provided by the utility model, a second air suction port is further arranged at the top of the dechlorination kettle, and the second air suction port is connected with an air inlet of the vacuum pump through a pipeline.
In a preferred embodiment of the dechlorination apparatus for producing chlorinated paraffin provided by the utility model, a liquid outlet is arranged on the side wall of the bottom of the dechlorination kettle, a liquid inlet pipe is arranged on the top of the dechlorination kettle, and the liquid outlet is connected with the liquid inlet pipe through a circulating pipeline and a circulating pump.
In a preferred embodiment of the dechlorination apparatus for producing chlorinated paraffin provided by the utility model, the circulating pipeline is further provided with a heat exchanger, and the temperature of the circulating liquid after heat exchange by the heat exchanger is higher than the liquid inlet temperature of the liquid inlet pipe.
In a preferred embodiment of the dechlorination device for producing chlorinated paraffin provided by the utility model, the top of the dechlorination kettle is also provided with an emptying pipeline, and the emptying pipeline is provided with an electromagnetic valve and an air drying box.
In a preferred embodiment of the dechlorination device for producing the chlorinated paraffin, an oil discharge port and an on-site liquid level meter are further arranged on the side wall of the dechlorination kettle, a drain port is arranged at the bottom of the dechlorination kettle, and a radar liquid level meter is further arranged at the top of the dechlorination kettle.
Compared with the prior art, the dechlorination device for producing chlorinated paraffin has the beneficial effects that: the dechlorination kettle designed by the utility model can be pumped into a weak vacuum state by the vacuum pump, hydrochloric acid enters the dechlorination kettle from the liquid inlet pipe, a small amount of chlorine in the hydrochloric acid escapes under the action of the filler in the filler chamber and the circulating pump of the dechlorination kettle, and the hydrochloric acid is pumped out to the tail gas treatment device for absorption (the vacuum pump can be operated intermittently).
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural diagram of a dechlorination device for producing chlorinated paraffin according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
The embodiment provides a dechlorination device for producing chlorinated paraffin, as shown in fig. 1, comprising a dechlorination kettle 1, wherein a packing chamber 2 is arranged at the top of the dechlorination kettle 1, a plurality of through holes 100 communicated with the packing chamber 2 are arranged on the dechlorination kettle 1, the packing chamber 2 is filled with a packing 3, the packing 3 in the embodiment can be a ceramic ring packing or other types of packing, and the packing has the function of dispersing saturated hydrochloric acid entering the dechlorination kettle in the packing so that free chlorine gas can escape more easily; specifically, saturated hydrochloric acid enters from a liquid inlet pipe 201 on the side wall of the filling chamber, and preferably, a liquid distribution disc 202 facing the filler is arranged at a liquid outlet of the liquid inlet pipe 201, so that the hydrochloric acid can be distributed on the cross section of the filler to enter the filler, and the dispersing effect is good. In order to ensure the escape effect of free chlorine, the top of the packing chamber 2 is further provided with a first air extraction opening 203 in the embodiment, the first air extraction opening 203 is connected to the tail gas treatment system through a pipeline and a vacuum pump 4, the packing chamber is pumped into weak negative pressure by using the first air extraction opening, the lower the pressure is, the smaller the solubility is, free chlorine in hydrochloric acid can quickly escape under the negative pressure, and the escaped chlorine is pumped to the tail gas treatment system by the vacuum pump to be absorbed (in the process, the vacuum pump can be set to work intermittently, so that the negative pressure in the dechlorination kettle is controlled within a reasonable range, and the chlorine is simultaneously pumped out).
Preferably, the top of the dechlorination kettle 1 of the embodiment is further provided with an emptying pipeline 101, the emptying pipeline 101 is provided with an electromagnetic valve 5 and an air drying box 6, after dechlorination is finished, the dechlorination is required to be discharged, and at this time, the electromagnetic valve is opened to enable the dechlorination kettle to recover to normal pressure; the air drying box is arranged to ensure that the air entering the dechlorination kettle is dried.
Preferably, the dechlorination kettle 1 of the present embodiment is further provided with an oil drain port 102 and an on-site liquid level meter 103 on the side wall, a drain port 104 on the bottom, and a radar liquid level meter (not shown in the figure) on the top. The oil discharge port is used for discharging paraffin oil (hydrochloric acid entering the dechlorination kettle can be kept still to layer the hydrochloric acid and the paraffin oil); the discharging port is used for discharging the dechlorinated hydrochloric acid to a finished product tank; the on-site liquid level meter is used for on-site workers to check the liquid level in the dechlorination kettle; the radar liquid level meter is convenient for a control room to master the liquid level in the dechlorination kettle in real time.
Example two
On the basis of the first embodiment, the second air suction opening 105 is further arranged at the top of the dechlorination kettle 1, the second air suction opening 105 is connected with the air inlet of the vacuum pump 4 through a pipeline, and the second air suction opening is used for sucking chlorine gas in the dechlorination kettle.
Preferably, the bottom lateral wall of dechlorination kettle 1 of this embodiment is equipped with liquid outlet 106, and the top is equipped with feed liquor pipe 107, liquid outlet 106 passes through circulating line and circulating pump 7 and connects feed liquor pipe 107 makes the on-the-spot circulation of hydrochloric acid in the dechlorination kettle, and further, this embodiment still be equipped with heat exchanger 8 on the circulating line, the temperature of circulating liquid after by the heat exchanger heat transfer is higher than the feed liquor temperature of feed liquor pipe, utilizes the heat exchanger to improve the temperature of hydrochloric acid a little, makes the free chlorine in the hydrochloric acid escape (utilizes the temperature to be higher, the lower principle of the solubility of chlorine).
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. The utility model provides a dechlorination device is used in chlorinated paraffin production which characterized in that: the dechlorination device comprises a dechlorination kettle, wherein a packing chamber is arranged at the top of the dechlorination kettle, a plurality of through holes communicated with the packing chamber are formed in the dechlorination kettle, and the packing chamber is filled with packing;
a liquid inlet pipe is arranged on the side wall of the filling chamber, and a liquid outlet of the liquid inlet pipe is provided with a liquid distribution disc facing the filling;
the top of the packing chamber is also provided with a first pumping hole, and the first pumping hole is connected to a tail gas treatment system through a pipeline and a vacuum pump.
2. The dechlorination apparatus for chlorinated paraffin production according to claim 1, wherein: and the top of the dechlorination kettle is also provided with a second air pumping hole, and the second air pumping hole is connected with the air inlet of the vacuum pump through a pipeline.
3. The dechlorination apparatus for chlorinated paraffin production according to claim 2, wherein: the side wall of the bottom of the dechlorination kettle is provided with a liquid outlet, the top of the dechlorination kettle is provided with a liquid inlet pipe, and the liquid outlet is connected with the liquid inlet pipe through a circulating pipeline and a circulating pump.
4. The dechlorination apparatus for chlorinated paraffin production according to claim 3, characterized in that: and the circulating pipeline is also provided with a heat exchanger, and the temperature of the circulating liquid after heat exchange by the heat exchanger is higher than the liquid inlet temperature of the liquid inlet pipe.
5. The dechlorination apparatus for chlorinated paraffin production according to claim 1, wherein: the top of dechlorination cauldron still is equipped with the unloading pipeline, be equipped with solenoid valve and air drying case on the unloading pipeline.
6. The dechlorination apparatus for chlorinated paraffin production according to any one of claims 1 to 5, characterized in that: the side wall of the dechlorination kettle is also provided with an oil discharge port and an on-site liquid level meter, the bottom of the dechlorination kettle is provided with a drain port, and the top of the dechlorination kettle is also provided with a radar liquid level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122367349.7U CN216023309U (en) | 2021-09-28 | 2021-09-28 | Dechlorination device for chlorinated paraffin production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122367349.7U CN216023309U (en) | 2021-09-28 | 2021-09-28 | Dechlorination device for chlorinated paraffin production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216023309U true CN216023309U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122367349.7U Active CN216023309U (en) | 2021-09-28 | 2021-09-28 | Dechlorination device for chlorinated paraffin production |
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| CN (1) | CN216023309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115300944A (en) * | 2022-08-03 | 2022-11-08 | 深圳市艾特网能技术有限公司 | Degassing device and heat exchange unit |
-
2021
- 2021-09-28 CN CN202122367349.7U patent/CN216023309U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115300944A (en) * | 2022-08-03 | 2022-11-08 | 深圳市艾特网能技术有限公司 | Degassing device and heat exchange unit |
| CN115300944B (en) * | 2022-08-03 | 2023-10-27 | 深圳市艾特网能技术有限公司 | Degassing device and heat exchanger unit |
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