CN217527409U - CNC cracking device - Google Patents
CNC cracking device Download PDFInfo
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- CN217527409U CN217527409U CN202221606219.2U CN202221606219U CN217527409U CN 217527409 U CN217527409 U CN 217527409U CN 202221606219 U CN202221606219 U CN 202221606219U CN 217527409 U CN217527409 U CN 217527409U
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Abstract
The utility model provides a CNC cracker, relates to chemical industry apparatus technical field, including the heating furnace body, the heating furnace is internal along the vertical schizolysis boiler tube that is equipped with, is equipped with the heat preservation packing layer between the outer wall of schizolysis boiler tube and the inner wall of heating furnace body, still is equipped with the stainless steel packing layer in the schizolysis furnace tube. The utility model solves the problem that the cracking device in the traditional technology has the phenomenon of repolymerization in the low-temperature stage after cracking in the high-temperature stage, and generates polymerized tar; if the diluent is adopted for dilution and then cracking, other impurities can be introduced in a high-temperature environment, the temperature conditions of sections such as vaporization cracking and the like in the traditional operation are insufficient, the cracking conditions are insufficient, a large amount of tar is generated, and the reaction progress and the economic benefit are seriously influenced.
Description
Technical Field
The utility model relates to a chemical industry apparatus technical field, concretely relates to CNC cracker.
Background
The 2-chloro-5-chloromethyl pyridine is an important intermediate of various novel high-efficiency chloronicotinyl insecticides such as imidacloprid, acetamiprid, thiacloprid and the like. The known synthesis process is a main route for synthesizing cyclopentadiene, and a pyrolysis step is required in the synthesis process.
The prior art discloses a patent CN213761810U, which comprises a pre-cracking tube, a thermostatic device and a stirring device, wherein the pre-cracking tube comprises a pre-cracking reaction kettle, a thermometer, a material pipeline and a check valve, the thermostatic device comprises a thermostatic heater and a heating medium, and the stirring device comprises a motor, a stirring paddle and a driving shaft; the constant temperature device is positioned below the pre-cracking tube, and the stirring device is positioned on the central shaft of the pre-cracking tube. The CNC pre-cracking device provided by the invention adopts a multi-stage pre-cracking device to be matched with the reaction kettle, the reaction temperature is controlled in a segmented manner, and the efficiency and the safety in the reaction process can be effectively improved.
The device gradually exposes to the shortcomings along with the use, which mainly appears in the following aspects:
in the common cracking method, after cracking at a high temperature stage, repolymerization is carried out again at a low temperature stage to generate polymerized tar; if the diluent is adopted for dilution and then cracking, other impurities can be introduced in a high-temperature environment, the temperature conditions of sections such as vaporization cracking and the like in the traditional operation are insufficient, the cracking conditions are insufficient, a large amount of tar is generated, and the reaction progress and the economic benefit are seriously influenced.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a CNC cracking device, which is used for solving the problem that the cracking device in the traditional technical device is polymerized again in the low temperature stage after cracking in the high temperature stage to generate polymerized tar; if the diluent is adopted for dilution and then cracking, other impurities can be introduced in the high-temperature environment, the temperature conditions of sections such as vaporization cracking and the like in the traditional operation are insufficient, the cracking conditions are insufficient, a large amount of tar is generated, and the reaction progress and the economic benefit are seriously influenced.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a CNC cracker, includes the heating furnace body, the heating furnace is internal along the vertical schizolysis boiler tube that is equipped with, the outer wall of schizolysis boiler tube with be equipped with the heat preservation packing layer between the inner wall of heating furnace body, still be equipped with the stainless steel packing layer in the schizolysis boiler tube.
As an optimized proposal, the upper end part of the heating furnace body is fixedly connected with a gas discharge pipe communicated with the cracking furnace pipe.
As an optimized proposal, the lower end part of the heating furnace body is fixedly connected with a tar discharge pipe communicated with the cracking furnace pipe.
As an optimized scheme, a filler support frame is further arranged in the lower end part of the cracking furnace tube and is positioned below the stainless steel filler layer.
As an optimized scheme, a material inlet communicated with the cracking furnace tube is further fixedly connected to the outer side wall of the heating furnace tube.
As an optimized scheme, the furnace tube section between the gas discharge pipe and the material inlet of the cracking furnace tube is a cracking section.
As an optimized scheme, a furnace tube section from the material inlet to the upper end part of the packing support frame of the cracking furnace tube is a material vaporization section.
As an optimized scheme, a furnace tube section from the upper end part of the packing support frame to the tar discharge tube of the cracking furnace tube is a tar storage section.
Compared with the prior art, the beneficial effects of the utility model are that:
CNC materials are processed in a high-temperature cracking mode, and the method has the advantages of being rapid, efficient, energy-saving and the like;
continuous production operation can be realized by applying cracking mode treatment, maintenance operation is simple and easy to implement, the kettle type cracking mode is different from the traditional production mode, and operation risks caused by intermittent operation are reduced;
the sectional temperature-controlled cracking furnace is adopted, the functions of vaporization, cracking, tar collection and the like are realized in the same furnace body, and compared with the traditional production method which adopts various pretreatment devices, the cost of redundant devices is reduced by using the cracking furnace, and the operation difficulty of the production process is reduced;
the addition of a diluent is omitted by negative pressure high temperature cracking, so that compared with the traditional production process, the material cost of the diluent is reduced, and the influence of impurities introduced by the decomposition of the diluent is reduced;
the process is simple and convenient, and the failure rate is low; the structure is simple, and the service life is long; simple and convenient operation and control, easy large-scale manufacture and installation and wide application range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-heating the furnace body; 2-cracking furnace tube; 3-a heat-insulating packing layer; 4-stainless steel packing layer; 5-a gas discharge pipe; 6-a tar discharge pipe; 7-a filler support; 8-a material inlet; 9-a cleavage section; 10-material vaporization section; 11-tar storage section.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
As shown in figure 1, the CNC cracking device comprises a heating furnace body 1, a cracking furnace tube 2 is vertically arranged in the heating furnace body 1, a heat preservation packing layer 3 is arranged between the outer wall of the cracking furnace tube 2 and the inner wall of the heating furnace body 1, and a stainless steel packing layer 4 is further arranged in the cracking furnace tube 2.
The heating furnace body 1 comprises a vertical heating furnace, a horizontal heating furnace or a rectifying tower and the like.
The upper end of the heating furnace body 1 is fixedly connected with a gas discharge pipe 5 communicated with the cracking furnace pipe 2.
The lower end part of the heating furnace body 1 is fixedly connected with a tar discharge pipe 6 communicated with the cracking furnace pipe 2.
A filler support frame 7 is also arranged in the lower end part of the cracking furnace tube 2, and the filler support frame 7 is positioned below the stainless steel filler layer 4.
The outer side wall of the heating furnace tube is also fixedly connected with a material inlet 8 communicated with the cracking furnace tube 2.
The furnace tube section between the gas discharge pipe 5 and the material inlet 8 of the cracking furnace tube 2 is a cracking section 9.
The furnace tube section of the cracking furnace tube 2 from the material inlet 8 to the upper end of the filler support frame 7 is a material vaporization section 10.
The furnace tube section of the cracking furnace tube 2 from the upper end part of the packing support frame 7 to the tar discharge tube 6 is a tar storage section 11.
The working principle of the device is as follows:
CNC materials are processed in a high-temperature cracking mode, and the method has the advantages of being rapid, efficient, energy-saving and the like;
continuous production operation can be realized by applying cracking mode treatment, maintenance operation is simple and easy to implement, the kettle type cracking mode is different from the traditional production mode, and operation risks caused by intermittent operation are reduced;
the sectional type temperature control cracking furnace is adopted, the functions of vaporization, cracking, tar collection and the like are realized in the same furnace body, and compared with the traditional production method which adopts various pretreatment devices, the method has the advantages that the cracking furnace is adopted to reduce the cost of redundant devices and reduce the operation difficulty in the production process;
the addition of a diluent is omitted by negative pressure high temperature cracking, and compared with the traditional production process, the material cost of the diluent is reduced, and meanwhile, the influence of impurities introduced by the decomposition of the diluent is also reduced.
The change of a protective point cracking tube body and different fillers in the tube body is additionally explained (for example, the furnace body is changed into a simple technical change of a simple furnace body heat transfer mode such as a horizontal placement mode, a spiral coil tube type internal and external heating mode and the like, or the type of the fillers is changed into a mode of updating equivalent substances of the same type such as an exchange bed, an exchange column and the like.)
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (8)
1. A CNC cracker which characterized in that: the cracking furnace is characterized by comprising a heating furnace body (1), wherein a cracking furnace tube (2) is vertically arranged in the heating furnace body (1), a heat-insulating packing layer (3) is arranged between the outer wall of the cracking furnace tube (2) and the inner wall of the heating furnace body (1), and a stainless steel packing layer (4) is further arranged in the cracking furnace tube (2).
2. The CNC cracking apparatus of claim 1, characterized in that: the upper end part of the heating furnace body (1) is fixedly connected with a gas discharge pipe (5) communicated with the cracking furnace pipe (2).
3. The CNC cracking apparatus according to claim 2, characterized in that: the lower end part of the heating furnace body (1) is fixedly connected with a tar discharge pipe (6) communicated with the cracking furnace pipe (2).
4. The CNC cracking apparatus of claim 3, characterized in that: and a filler support frame (7) is further arranged in the lower end part of the cracking furnace tube (2), and the filler support frame (7) is positioned below the stainless steel filler layer (4).
5. The CNC cracking apparatus of claim 4, wherein: the outer side wall of the heating furnace tube is also fixedly connected with a material inlet (8) communicated with the cracking furnace tube (2).
6. The CNC cracking apparatus of claim 5, characterized in that: the furnace tube section between the cracking furnace tube (2) and the material inlet (8) from the gas discharge tube (5) is a cracking section (9).
7. The CNC cracking apparatus of claim 6, characterized in that: the furnace tube section between the cracking furnace tube (2) from the material inlet (8) to the upper end of the filler support frame (7) is a material vaporization section (10).
8. The CNC cracking apparatus of claim 7, characterized in that: the furnace tube section of the cracking furnace tube (2) from the upper end part of the filler support frame (7) to the tar discharge tube (6) is a tar storage section (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221606219.2U CN217527409U (en) | 2022-06-25 | 2022-06-25 | CNC cracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221606219.2U CN217527409U (en) | 2022-06-25 | 2022-06-25 | CNC cracking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217527409U true CN217527409U (en) | 2022-10-04 |
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ID=83421198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221606219.2U Active CN217527409U (en) | 2022-06-25 | 2022-06-25 | CNC cracking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217527409U (en) |
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2022
- 2022-06-25 CN CN202221606219.2U patent/CN217527409U/en active Active
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