CN210583740U - Crystallizer for carbazole purification - Google Patents
Crystallizer for carbazole purification Download PDFInfo
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- CN210583740U CN210583740U CN201921148062.1U CN201921148062U CN210583740U CN 210583740 U CN210583740 U CN 210583740U CN 201921148062 U CN201921148062 U CN 201921148062U CN 210583740 U CN210583740 U CN 210583740U
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Abstract
The utility model relates to a crystallizer for carbazole purification, which comprises a crystallizer body and a heat conducting oil pipe; the heat conduction oil pipe consists of a plurality of layers of heat conduction oil coils, a first heat conduction oil vertical pipe and a second heat conduction oil vertical pipe, wherein a heat conduction oil inlet and a heat conduction oil outlet of the odd layers of heat conduction oil coils are respectively communicated with the first different heat conduction oil vertical pipes, and a heat conduction oil inlet and a heat conduction oil outlet of the even layers of heat conduction oil coils are respectively communicated with the second different heat conduction oil vertical pipes; the top of the first heat conduction oil vertical pipe/the second heat conduction oil vertical pipe correspondingly connected with the heat conduction oil inlet is provided with a heat conduction oil injection port, and the top of the first heat conduction oil vertical pipe/the second heat conduction oil vertical pipe correspondingly connected with the heat conduction oil outlet is provided with a heat conduction oil outflow port. The utility model discloses a heat conduction oil pipe of multilayer coil pipe formula, multilayer heat conduction oil coil pipe and heat conduction oil riser one, two parallelly connected return circuits of constituteing of heat conduction oil riser, not only heat transfer area greatly increased, temperature is balanced everywhere in the crystallizer moreover, is favorable to strengthening the purification effect, makes product yield and yield obtain increasing substantially.
Description
Technical Field
The utility model relates to a carbazole purification equipment especially relates to a crystallizer that is used for carbazole purification.
Background
Carbazole is one of the most economic components in coal tar, is an important intermediate for synthesizing fine chemicals, and can be used in the fields of producing fuels, pigments, pesticides, medicines, new photoelectric materials, special printing inks, synthetic resins and the like. With the development of fine chemical engineering and the progress of organic synthesis technology, the demand of high-purity carbazole is increasing day by day, and the higher the purity is, the stronger the market competitiveness is, and the more considerable the economic benefit is.
At present, a crystallization method is mainly adopted for carbazole purification, equipment for carbazole crystallization is mainly a crystallization box, multiple stages are arranged, each stage of crystallization box is provided with an independent hot oil circulation system and a cooling system, the equipment occupies a large area, the cost is high, the operation is complex, and inconvenience is brought to industrial production.
Chinese patent application No. 201510663689.0 discloses a "crystallization apparatus and method", wherein the tubular crystallizer comprises a shell, a tube bundle composed of crystallization tubes is arranged in the shell, the top of the shell is provided with a tubular crystallizer liquid inlet and an exhaust port, and the bottom is provided with a tubular crystallizer liquid outlet; the shell on the outer side of the tube bundle is provided with a heat conduction oil inlet and a heat conduction oil outlet, and the bottom of the shell is provided with a heat preservation jacket. The crystallizer adopts a tube bundle type heat conduction oil tube, the problem of uneven heating exists along the height direction of the crystallizer, the heat transfer area is small, and a plurality of crystallizers are generally required to be used in series.
Disclosure of Invention
The utility model provides a crystallizer for carbazole purification adopts the heat conduction oil pipe of multilayer coil formula, and multilayer heat conduction oil coil and heat conduction oil riser one, two parallelly connected return circuits of constituteing of heat conduction oil riser, not only heat transfer area greatly increased, temperature is balanced everywhere in the crystallizer moreover, is favorable to strengthening the purification effect, makes product yield and yield obtain increasing substantially.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a crystallizer for carbazole purification comprises a crystallizer body and a heat conduction oil pipe arranged in the crystallizer body; the bottom of the crystallizer body is provided with a carbazole inlet and a carbazole outlet; the heat conduction oil pipe consists of a plurality of layers of heat conduction oil coil pipes, a first heat conduction oil vertical pipe and a second heat conduction oil vertical pipe which are horizontally arranged, wherein the number of the first heat conduction oil vertical pipe is at least 2, and the number of the second heat conduction oil vertical pipe is at least 2; along the height direction of the crystallizer body, a heat conduction oil inlet and a heat conduction oil outlet of the heat conduction oil coil pipes at odd-numbered layers are respectively communicated with different heat conduction oil vertical pipes I, and a heat conduction oil inlet and a heat conduction oil outlet of the heat conduction oil coil pipes at even-numbered layers are respectively communicated with different heat conduction oil vertical pipes II; the top of the first heat conduction oil vertical pipe/the second heat conduction oil vertical pipe correspondingly connected with the heat conduction oil inlet is provided with a heat conduction oil injection port, and the top of the first heat conduction oil vertical pipe/the second heat conduction oil vertical pipe correspondingly connected with the heat conduction oil outlet is provided with a heat conduction oil outflow port.
The number of the heat conduction oil vertical pipes is 2, and the number of the heat conduction oil vertical pipes is 2; the first heat conduction oil vertical pipes are opposite along the horizontal X-axis direction and are vertically arranged on two sides of the crystallizer body, and the second heat conduction oil vertical pipes are opposite along the horizontal Y-axis direction and are vertically arranged on the other two sides of the crystallizer body; and the heat conduction oil inlet and the heat conduction oil outlet of the heat conduction oil coil pipes at the odd layers are respectively communicated with the heat conduction oil vertical pipe I at the corresponding side along the height direction of the crystallizer body, and the heat conduction oil inlet and the heat conduction oil outlet of the heat conduction oil coil pipes at the even layers are respectively communicated with the heat conduction oil vertical pipe II at the corresponding side.
The outer side of the crystallizer body is provided with a jacket structure, and the jacket structure is respectively provided with a heat conduction oil inlet and a heat conduction oil outlet.
And the top of the crystallizer body is provided with a radar liquid level meter interface.
The crystallizer comprises a crystallizer body, wherein the top of the crystallizer body is provided with at least 3 thermometer interfaces, the bottoms of thermometers arranged in the thermometer interfaces are downwards inserted into intervals of a heat-conducting oil coil pipe, and the depths of the thermometers inserted into the crystallizer body are different.
And the carbazole inlet and outlet, the heat conduction oil injection port and the heat conduction oil outflow port are all provided with heat conduction oil heat tracing structures.
The diameters of the heat conduction oil vertical pipe I and the heat conduction oil vertical pipe II are larger than that of the heat conduction oil coil pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the multi-layer coil type heat conduction oil pipe is adopted, and the multi-layer heat conduction oil coil, the heat conduction oil vertical pipe I and the heat conduction oil vertical pipe II form a parallel loop, so that the heat transfer area is greatly increased, the temperature of each part in the crystallizer is balanced, the purification effect is favorably enhanced, and the product yield and yield are greatly improved;
2) the heat transfer area is greatly increased by adopting the multilayer coil pipe type heat conduction oil pipe, the purification effect can be achieved without using a plurality of crystallizers in series, the occupied area of equipment is small, and the investment cost can be reduced;
3) the liquid level gauge is provided with the radar liquid level gauge and the thermometers, can accurately detect the liquid level and the temperature in the crystallizer, and is simple and stable in operation, easy to control and good in product quality.
Drawings
Fig. 1 is a schematic structural diagram of a crystallizer for carbazole purification according to the present invention.
Fig. 2 is a schematic diagram of the arrangement form of the odd-numbered layers of the heat-conducting oil coil pipe of the present invention.
Fig. 3 is a schematic view of the arrangement of the even number layers of the heat conducting oil coil pipes according to the present invention.
In the figure: 1. crystallizer body 21, odd layers of heat-conducting oil coils 22, even layers of heat-conducting oil coils 3, carbazole inlet and outlet 4, heat-conducting oil inlet 5, heat-conducting oil outlet 6, thermometer interface 7, radar level gauge interface 8, heat-conducting oil riser I9, heat-conducting oil riser II 10 and jacket structure
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1, the crystallizer for carbazole purification according to the present invention comprises a crystallizer body 1 and a heat conducting oil pipe disposed in the crystallizer body 1; the bottom of the crystallizer body 1 is provided with a carbazole inlet and outlet 3; the heat conduction oil pipe consists of a plurality of layers of heat conduction oil coil pipes, a first heat conduction oil vertical pipe 8 and a second heat conduction oil vertical pipe 9 which are horizontally arranged, the number of the first heat conduction oil vertical pipe 8 is at least 2, and the number of the second heat conduction oil vertical pipe 9 is at least 2; along the height direction of the crystallizer body 1, a heat conduction oil inlet and a heat conduction oil outlet of the heat conduction oil coil 21 at odd layers are respectively communicated with a first heat conduction oil vertical pipe 8 (shown in figure 2), and a heat conduction oil inlet and a heat conduction oil outlet of the heat conduction oil coil 22 at even layers are respectively communicated with a second heat conduction oil vertical pipe 9 (shown in figure 3); the top of the first heat conduction oil vertical pipe 8/the second heat conduction oil vertical pipe 9 correspondingly connected with the heat conduction oil inlet is provided with a heat conduction oil injection port, and the top of the first heat conduction oil vertical pipe 8/the second heat conduction oil vertical pipe 9 correspondingly connected with the heat conduction oil outlet is provided with a heat conduction oil outflow port.
The number of the heat conduction oil vertical pipes I8 is 2, and the number of the heat conduction oil vertical pipes II 9 is 2; the heat conduction oil vertical pipes I8 are opposite and vertically arranged on two sides of the crystallizer body 1 along the horizontal X-axis direction, and the heat conduction oil vertical pipes II 9 are opposite and vertically arranged on the other two sides of the crystallizer body 1 along the horizontal Y-axis direction; along the height direction of the crystallizer body 1, a heat conduction oil inlet and a heat conduction oil outlet of the heat conduction oil coil 21 at the odd layers are respectively communicated with a first heat conduction oil vertical pipe 8 at the corresponding side, and a heat conduction oil inlet and a heat conduction oil outlet of the heat conduction oil coil 22 at the even layers are respectively communicated with a second heat conduction oil vertical pipe 9 at the corresponding side.
The outer side of the crystallizer body 1 is provided with a jacket structure 10, and the jacket structure 10 is respectively provided with a heat conduction oil inlet 4 and a heat conduction oil outlet 5.
The top of the crystallizer body 1 is provided with a radar liquid level meter interface 7.
The top of the crystallizer body 1 is provided with at least 3 thermometer interfaces 6, the bottom of a thermometer arranged in the thermometer interfaces 6 is downwards inserted into the interval of the heat conducting oil coil, and the depths of the thermometers inserted into the crystallizer body 1 are different.
And the carbazole inlet and outlet 3, the heat conduction oil injection port and the heat conduction oil outflow port are all provided with heat conduction oil heat tracing structures.
The diameters of the first heat conduction oil vertical pipe 8 and the second heat conduction oil vertical pipe 9 are larger than that of the heat conduction oil coil pipe.
A working process that is used for crystallizer of carbazole purification does: raw material carbazole enters the crystallizer body 1 from a carbazole inlet and outlet 3, a medium in a heat conduction oil pipe is heat conduction oil, the growth rate of carbazole crystals can be controlled by controlling the cooling temperature of the heat conduction oil, the raw material carbazole is crystallized on the outer wall of the heat conduction oil pipe, the carbazole crystals are melted by controlling the heating temperature of the heat conduction oil pipe to sweat, sweat is discharged into an intermediate storage tank, and fine carbazole is finally discharged into a carbazole product tank from the carbazole inlet and outlet 3 at the bottom of the crystallizer body 1. The heat conducting oil is recycled, and the temperature is adjusted through the heat exchanger. In the whole carbazole crystallization process, the liquid level and the temperature in the crystallizer are monitored by a radar liquid level meter and a plurality of thermometers.
The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
As shown in fig. 1 to 3, in the present embodiment, the number of the first heat transfer oil vertical pipes 8 is 2, and the number of the second heat transfer oil vertical pipes 9 is 2; the heat conduction oil vertical pipes I8 are opposite and vertically arranged on two sides of the crystallizer body 1 along the horizontal X-axis direction, and the heat conduction oil vertical pipes II 9 are opposite and vertically arranged on the other two sides of the crystallizer body 1 along the horizontal Y-axis direction; the heat conduction oil coil pipes are evenly provided with n layers in the height direction in the crystallizer body 1, two ends of the heat conduction oil coil pipes 21 in odd-numbered layers are respectively connected with the heat conduction oil vertical pipe I8 in the corresponding side and form a first parallel circuit, two ends of the heat conduction oil coil pipes 22 in even-numbered layers are respectively connected with the heat conduction oil vertical pipe II 9 in the corresponding side and form a second parallel circuit, the heat conduction oil vertical pipe I8 and the heat conduction oil vertical pipe II 9 are arranged in the height direction of the crystallizer body 1, the top of the heat conduction oil vertical pipe I and the top of the heat conduction oil vertical pipe II extend. The heat conducting oil adopts tetralin.
In the embodiment, 3 thermometers are arranged in the crystallizer body 1 and are used for respectively measuring the temperatures at different heights in the crystallizer,
the above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A crystallizer for carbazole purification comprises a crystallizer body and a heat conduction oil pipe arranged in the crystallizer body; the bottom of the crystallizer body is provided with a carbazole inlet and a carbazole outlet; the heat conduction oil pipe is characterized by comprising a plurality of layers of heat conduction oil coil pipes, a first heat conduction oil vertical pipe and a second heat conduction oil vertical pipe which are horizontally arranged, wherein the number of the first heat conduction oil vertical pipe is at least 2, and the number of the second heat conduction oil vertical pipe is at least 2; along the height direction of the crystallizer body, a heat conduction oil inlet and a heat conduction oil outlet of the heat conduction oil coil pipes at odd-numbered layers are respectively communicated with different heat conduction oil vertical pipes I, and a heat conduction oil inlet and a heat conduction oil outlet of the heat conduction oil coil pipes at even-numbered layers are respectively communicated with different heat conduction oil vertical pipes II; the top of the first heat conduction oil vertical pipe/the second heat conduction oil vertical pipe correspondingly connected with the heat conduction oil inlet is provided with a heat conduction oil injection port, and the top of the first heat conduction oil vertical pipe/the second heat conduction oil vertical pipe correspondingly connected with the heat conduction oil outlet is provided with a heat conduction oil outflow port.
2. The crystallizer for carbazole purification according to claim 1, wherein the number of the first heat transfer oil riser is 2, and the number of the second heat transfer oil riser is 2; the first heat conduction oil vertical pipes are opposite along the horizontal X-axis direction and are vertically arranged on two sides of the crystallizer body, and the second heat conduction oil vertical pipes are opposite along the horizontal Y-axis direction and are vertically arranged on the other two sides of the crystallizer body; and the heat conduction oil inlet and the heat conduction oil outlet of the heat conduction oil coil pipes at the odd layers are respectively communicated with the heat conduction oil vertical pipe I at the corresponding side along the height direction of the crystallizer body, and the heat conduction oil inlet and the heat conduction oil outlet of the heat conduction oil coil pipes at the even layers are respectively communicated with the heat conduction oil vertical pipe II at the corresponding side.
3. The crystallizer of claim 1, wherein a jacket structure is provided outside the crystallizer body, and the jacket structure is provided with a heat transfer oil inlet and a heat transfer oil outlet, respectively.
4. The crystallizer for carbazole purification according to claim 1, wherein a radar level gauge interface is provided at the top of said crystallizer body.
5. The crystallizer for carbazole purification according to claim 1, wherein at least 3 thermometer interfaces are provided at the top of said crystallizer body, the bottom of the thermometer installed in the thermometer interfaces is inserted into the interval of the heat conducting oil coil downwards, and the depth of each thermometer inserted into the crystallizer body is different.
6. The crystallizer for carbazole purification according to claim 1, wherein the carbazole inlet and outlet, the heat transfer oil inlet and the heat transfer oil outlet are all provided with heat transfer oil heat tracing structures.
7. The crystallizer for carbazole purification according to claim 1, wherein the diameters of the first heat transfer oil riser and the second heat transfer oil riser are larger than the diameter of the pipeline of the heat transfer oil coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921148062.1U CN210583740U (en) | 2019-07-19 | 2019-07-19 | Crystallizer for carbazole purification |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921148062.1U CN210583740U (en) | 2019-07-19 | 2019-07-19 | Crystallizer for carbazole purification |
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| CN210583740U true CN210583740U (en) | 2020-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251986A (en) * | 2019-07-19 | 2019-09-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of crystallizer for carbazole purification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251986A (en) * | 2019-07-19 | 2019-09-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of crystallizer for carbazole purification |
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