CN210079486U - Cyaniding continuous reactor - Google Patents
Cyaniding continuous reactor Download PDFInfo
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- CN210079486U CN210079486U CN201920856684.3U CN201920856684U CN210079486U CN 210079486 U CN210079486 U CN 210079486U CN 201920856684 U CN201920856684 U CN 201920856684U CN 210079486 U CN210079486 U CN 210079486U
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- feed liquid
- forced circulation
- liquid buffering
- receiving tank
- reaction
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Abstract
The utility model discloses a cyaniding continuous reactor, include: feed liquid buffering festival, connect at the forced circulation condenser of feed liquid buffering festival lower extreme, connect feed liquid buffering receiving tank and forced circulation pump at forced circulation condenser lower extreme, be provided with the raw materials import that is used for adding reaction raw materials on the feed liquid buffering festival, forced circulation condenser is used for practicing the forced cooling to the reaction solution who flows from feed liquid buffering festival, feed liquid buffering receiving tank is used for accepting the reaction solution who flows from forced circulation condenser, forced circulation pump's input is through the bottom intercommunication of first pipeline with feed liquid buffering receiving tank, forced circulation pump's output passes through the top intercommunication of second pipeline with feed liquid buffering festival, be connected with the material on the second pipeline and change the exit tube. The utility model provides a reaction is discontinuous, inefficiency in the current pantoic acid lactone production process, reaction vessel is not sealed, cause the leakage easily, reaction temperature is difficult to control, the problem that the product formation rate is low.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field, concretely relates to cyaniding continuous reactor.
Background
In the chemical industry reaction product production process, some poisonous and harmful dangerous chemical reactions can be involved inevitably, at present, in the production process of pantoic acid lactone, the cyanidation reaction of the aldol condensation compound and sodium cyanide or hydrogen cyanide is realized in a kettle type reactor, and continuous reaction can not be realized, and the kettle type reactor needs to be installed and stirred to enable reaction materials to react uniformly, but an opening of the kettle can not be avoided after stirring, the sealing problem exists in both an open kettle and a closed kettle, and toxic and harmful substances generated by the reaction have the risk of leakage, so the kettle type reactor has potential safety hazards, in addition, the heat release is needed in the process of the cyanation reaction of the aldol condensation compound and the sodium cyanide or hydrogen cyanide, the reaction temperature is difficult to control, and the production rate of pantoic acid lactone is low.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a cyaniding continuous reactor to reaction is discontinuous, inefficiency in solving current pantoic acid lactone production process, and reaction vessel is not sealed, causes the leakage easily, and reaction temperature is difficult to control, the problem that the product formation rate is low.
The utility model provides a cyaniding continuous reactor, include: feed liquid buffering festival, connection the forced circulation condenser of feed liquid buffering festival lower extreme, connection feed liquid buffering receiving tank and forced circulation pump of forced circulation condenser lower extreme, be provided with the raw materials import that is used for adding reaction raw materials on the feed liquid buffering festival, forced circulation condenser is used for saving the reaction solution who flows from the feed liquid buffering and carries out forced cooling, feed liquid buffering receiving tank is used for accepting the reaction solution who flows from the forced circulation condenser, forced circulation pump's input is through the bottom intercommunication of first pipeline with feed liquid buffering receiving tank, and forced circulation pump's output passes through the top intercommunication of second pipeline with feed liquid buffering festival, be connected with the material on the second pipeline and change over the pipe.
Further, the forced circulation condenser is a tubular condenser, and the forced circulation condenser has a tube side through which the reaction solution flows and a shell side through which the refrigerant liquid flows.
Furthermore, a first refrigerating fluid inlet communicated with the shell pass is formed in the lower portion of the forced circulation condenser, and a first refrigerating fluid outlet communicated with the shell pass is formed in the upper portion of the forced circulation condenser.
Further, an interlayer is arranged in the tank wall of the feed liquid buffering receiving tank, a second refrigerating liquid inlet communicated with the interlayer is formed in the lower portion of the feed liquid buffering receiving tank, and a second refrigerating liquid outlet communicated with the interlayer is formed in the upper portion of the feed liquid buffering receiving tank.
Furthermore, the feed liquid buffering joint and the feed liquid buffering receiving tank are both provided with a temperature detection point and a pressure detection point.
Furthermore, the raw material import is provided with three, wherein two raw material imports are respectively used for introducing two different reaction raw materials, and one raw material import is reserved.
The beneficial effects of the utility model are embodied in: when the reactor is adopted to produce the pantoic acid lactone, two reaction raw materials are respectively introduced into a material liquid buffering joint from a raw material inlet, the two reaction raw materials are mixed in the material liquid buffering joint and then flow into a forced circulation condenser for forced cooling, then flow into a material liquid buffering receiving tank from the forced circulation condenser, and circulate to the material liquid buffering joint through a forced circulation pump, when the solution at a material transfer pipe meets the requirements of reaction products, part of the solution is transferred out from a material transfer pipe, and part of the solution is circulated to the material liquid buffering joint to be continuously mixed with the newly added reaction raw materials, so that the circulation is adopted, the whole pantoic acid lactone production process is continuous in reaction, the production efficiency is greatly improved, in addition, the whole reaction process is free from stirring, the manual field operation is not needed, the operation is carried out in a closed environment, the leakage accident can be effectively avoided, and the potential safety hazard of the production is greatly, in addition, the reactor utilizes the built-in forced circulation condenser to control the reaction temperature within the range set by the process at any time, thereby achieving the complete reaction and improving the generation rate of the product.
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 diagram of an embodiment of the present invention;
fig. 2 is a cross-sectional view of a forced circulation condenser according to an embodiment of the present invention.
In the attached drawings, 1 represents a feed liquid buffer node; 2 denotes a forced circulation condenser; 201 denotes a tube pass; 202 represents the shell side; 203 denotes a first cooling fluid inlet; 204 denotes a first cooling fluid outlet; 3 denotes a feed liquid buffer receiving tank; 301 denotes an interlayer; 302 denotes a second cooling fluid inlet; 303, a second cooling fluid outlet; 4 denotes a forced circulation pump; 5 denotes a raw material inlet; 6 denotes a first duct; 7 denotes a second duct; 8 denotes a material transfer pipe; 9 denotes a temperature detection point; and 10 denotes a pressure sensing point.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1-2, embodiments of the present invention provide a cyanidation continuous reactor including: the feed liquid buffering joint 1, the forced circulation condenser 2 connected with the lower end of the feed liquid buffering joint 1, the feed liquid buffering receiving tank 3 connected with the lower end of the forced circulation condenser 2 and the forced circulation pump 4.
The material liquid buffer section 1 is provided with three raw material inlets 5 for adding reaction raw materials, in this embodiment, the raw material inlets 5 are specifically provided, two of the raw material inlets 5 are respectively used for introducing two different reaction raw materials (one of the reaction raw materials is an aldol condensation product, and the other one of the reaction raw materials is sodium cyanide or hydrogen cyanide), and one of the raw material inlets 5 is reserved.
The forced circulation condenser 2 is used for forcibly cooling the reaction solution flowing out of the feed buffer throttle 1. Specifically, the forced circulation condenser 2 is a tubular condenser, the forced circulation condenser 2 has a tube side 201 through which the reaction solution flows and a shell side 202 through which the refrigerant liquid flows, a first refrigerant liquid inlet 203 communicated with the shell side 202 is provided at the lower part of the forced circulation condenser 2, a first refrigerant liquid outlet 204 communicated with the shell side 202 is provided at the upper part of the forced circulation condenser 2, when the reaction solution is cooled by the forced circulation condenser 2, the reaction solution flows through the tube side 201, the refrigerant liquid flows through the shell side 202, and the reaction solution exchanges heat with the refrigerant liquid flow. It should be noted that the structure of the forced circulation condenser 2 is not limited to this, and the forced circulation condenser 2 provided in the present embodiment is only a preferable structure.
The feed buffer receiving tank 3 is used for receiving the reaction solution flowing out of the forced circulation condenser 2. Because reaction solution gets into behind feed liquid buffering receiving tank 3, the reaction is still continuing, still can continuously release heat, therefore, be provided with intermediate layer 301 in this embodiment liquid buffering receiving tank's the jar wall, the lower part of feed liquid buffering receiving tank 3 is provided with the second cryogenic fluid import 302 with intermediate layer 301 intercommunication, the upper portion of feed liquid buffering receiving tank 3 is provided with the second cryogenic fluid export 303 with intermediate layer 301 intercommunication, when equipment operation, let in the circulation cryogenic fluid in to intermediate layer 301, with further cooling to reaction solution, thereby control the reaction temperature in the feed liquid buffering receiving tank 3.
The input of force circulation pump 4 is through the bottom intercommunication of first pipeline 6 with feed liquid buffering receiving tank 3, and force circulation pump 4's output is through the top intercommunication of second pipeline 7 with feed liquid buffering festival 1, is connected with material switching-out pipe 8 on the second pipeline 7.
In addition, a temperature detection point 9 and a pressure detection point 10 are arranged on the feed liquid buffering node 1 and the feed liquid buffering receiving tank 3 respectively, so as to be used for monitoring the temperature and the pressure in the feed liquid buffering node 1 and the feed liquid buffering receiving tank 3 respectively.
When the reactor is adopted to produce the pantoic acid lactone, two reaction raw materials are respectively introduced into a material liquid buffering joint 1 from a raw material inlet 5, the two reaction raw materials are mixed in the material liquid buffering joint 1 and then flow into a forced circulation condenser 2 for forced cooling, then flow into a material liquid buffering receiving tank 3 from the forced circulation condenser 2, and circulate to the material liquid buffering joint 1 through a forced circulation pump 4, when the solution at a material transfer pipe 8 meets the requirement of a reaction product, part of the solution is transferred out from the material transfer pipe 8, part of the solution circulates to the material liquid buffering joint 1 and is continuously mixed with a newly added reaction raw material, so that the circulation is adopted, the whole pantoic acid lactone production process has continuous reaction, the production efficiency is greatly improved, in addition, the whole reaction process does not need stirring, manual field operation is not needed, the whole reaction process runs in a closed environment, and leakage accidents can be effectively avoided, the potential safety hazard of production is greatly reduced, and in addition, the reactor utilizes the built-in forced circulation condenser 2 to control the reaction temperature within the range set by the process at any time, thereby achieving the complete reaction and improving the generation rate.
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 (6)
1. A cyanidation continuous reactor characterized by comprising: feed liquid buffering festival, connection the forced circulation condenser of feed liquid buffering festival lower extreme, connection feed liquid buffering receiving tank and forced circulation pump of forced circulation condenser lower extreme, be provided with the raw materials import that is used for adding reaction raw materials on the feed liquid buffering festival, forced circulation condenser is used for saving the reaction solution who flows from the feed liquid buffering and carries out forced cooling, feed liquid buffering receiving tank is used for accepting the reaction solution who flows from the forced circulation condenser, forced circulation pump's input is through the bottom intercommunication of first pipeline with feed liquid buffering receiving tank, and forced circulation pump's output passes through the top intercommunication of second pipeline with feed liquid buffering festival, be connected with the material on the second pipeline and change over the pipe.
2. The continuous cyanide reactor according to claim 1, wherein the forced circulation condenser is a tube condenser having a tube side through which the reaction solution flows and a shell side through which the coolant flows.
3. The continuous cyanide reactor according to claim 2, wherein the lower part of the forced circulation condenser is provided with a first cooling fluid inlet in communication with the shell side, and the upper part of the forced circulation condenser is provided with a first cooling fluid outlet in communication with the shell side.
4. The continuous cyanidation reactor according to claim 1, wherein an interlayer is provided in a wall of the feed liquid buffer receiving tank, a second cooling liquid inlet communicated with the interlayer is provided in a lower portion of the feed liquid buffer receiving tank, and a second cooling liquid outlet communicated with the interlayer is provided in an upper portion of the feed liquid buffer receiving tank.
5. The cyanidation continuous reactor according to claim 1, characterized in that a temperature probe and a pressure probe are provided on each of the feed liquid buffer node and the feed liquid buffer receiving tank.
6. The continuous cyanidation reactor according to claim 1, wherein the feed inlets are provided in three numbers, two of the feed inlets being adapted to feed two different reaction feeds, one feed inlet being provided for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920856684.3U CN210079486U (en) | 2019-06-06 | 2019-06-06 | Cyaniding continuous reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920856684.3U CN210079486U (en) | 2019-06-06 | 2019-06-06 | Cyaniding continuous reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210079486U true CN210079486U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920856684.3U Active CN210079486U (en) | 2019-06-06 | 2019-06-06 | Cyaniding continuous reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210079486U (en) |
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2019
- 2019-06-06 CN CN201920856684.3U patent/CN210079486U/en active Active
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