CN217796139U - Nitration equipment for H acid solvent - Google Patents
Nitration equipment for H acid solvent Download PDFInfo
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- CN217796139U CN217796139U CN202221395020.XU CN202221395020U CN217796139U CN 217796139 U CN217796139 U CN 217796139U CN 202221395020 U CN202221395020 U CN 202221395020U CN 217796139 U CN217796139 U CN 217796139U
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Abstract
The utility model relates to a sour production technical field of H, concretely relates to equipment is nitrified to sour solvent of H. Comprises a reactor body, a jacket layer, a stirrer and a transmission device; the method is characterized in that: the reactor comprises a reactor body, wherein a jacket layer is tightly attached to the periphery of the reactor body, the jacket layer is of a cylindrical structure with cooling blocks uniformly distributed, a water inlet pipe is arranged at the left end of the jacket layer, a water outlet pipe is arranged at the right end of the jacket layer, the interior of each cooling block is of a hollow structure, the top of each cooling block is communicated with the water inlet pipe, and the bottom of each cooling block is communicated with the water outlet pipe; a spiral stirrer is arranged in the reactor, and the top end of the stirrer is connected with a motor through a transmission device; the left end of the reactor is provided with a feeding pipe, a safety valve and a manhole, and the right end of the reactor is provided with a discharging pipe and an exhaust pipe. The utility model discloses the radiating efficiency is high, product quality is stable, uses safe and reliable, has solved the nitration reaction of H sour solvent and can not quick radiating problem after a large amount of heat dissipations.
Description
Technical Field
The utility model relates to an sour production technical field of H, concretely relates to equipment is nitrified to sour solvent of H.
Background
The nitration reaction is a strong exothermic reaction, when the mixed acid is nitrated, the reaction generates water to dilute sulfuric acid and releases dilution heat, the part of heat is 7.5-10% of the reaction heat, if the large heat is not removed in time, the overtemperature can be generated to cause side reactions such as multiple nitration, oxidation and the like, even a large amount of decomposition of nitric acid can be generated, and a large amount of reddish brown NO can be generated 2 The gas increases the pressure in the reaction device, and simultaneously, the speed of the main reaction and the side reaction is increased, and a larger amount of heat is continuously generated. The temperature directly affects the production safety and the product quality, so the nitration equipment generally needs cooling measures to control the temperature in the reactor and ensure the safe production and the high-quality product quality.
The existing patent is closer to the patent, and the name is: a nitration device (application number-CN 201820348542.1) for preparing H acid is provided, which is integrated with a tubular mixed nitration reactor body through a tubular mixed nitration reactor heat exchange unit, so that heat generated when the sulfonated liquid and the nitric acid are mixed in the tubular mixed nitration reactor body is released simultaneously. However, the tubular cooling is to wrap the reactor through a pipeline, so that the periphery of the reactor cannot be tightly wrapped, and the cooling effect is still to be improved.
Disclosure of Invention
The utility model aims to provide a: the H acid solvent nitration equipment has high heat dissipation efficiency, high reaction efficiency and safe and reliable use.
The technical scheme of the utility model is that:
an H acid solvent nitration device comprises a reactor body, a jacket layer, a stirrer and a transmission device; the method is characterized in that: the reactor comprises a reactor body, wherein a jacket layer is tightly attached to the periphery of the reactor body, the jacket layer is of a cylindrical structure with cooling blocks uniformly distributed, a water inlet pipe is arranged at the left end of the jacket layer, a water outlet pipe is arranged at the right end of the jacket layer, the interior of each cooling block is of a hollow structure, the top of each cooling block is communicated with the water inlet pipe, and the bottom of each cooling block is communicated with the water outlet pipe; a spiral stirrer is arranged in the reactor, and the top end of the stirrer is connected with a motor through a transmission device; the left end of the reactor is provided with a feeding pipe, a safety valve and a manhole, and the right end of the reactor is provided with a discharging pipe and an exhaust pipe.
Furthermore, the cooling blocks in the jacket layer are in staggered concave-convex shapes, namely one cooling block is in a boss structure and the other cooling block is in a groove structure, the length of the cooling block is equal to that of the reactor body, and the peripheral shape of the reactor is in concave-convex fit with the jacket layer.
Furthermore, the safety valve is connected with a pressure gauge and an alarm device.
Furthermore, a temperature detector is arranged on the reactor body.
Furthermore, the exhaust pipe is arranged at the top of the right end of the reactor, and the exhaust pipe leads to an exhaust device.
Further, the stirrer comprises a stirring shaft and stirring blades, the stirrer extends from the left end of the reactor to the right end of the reactor, and the stirring blades are spirally wound on the stirring shaft.
Furthermore, the water inlet pipe is connected with a circulating water pump, the water outlet pipe is connected with a cooling water tank, and a filter screen is installed at the water inlet of the water inlet pipe.
Further, the bottom of the reactor body is provided with a base.
Utility model's beneficial effect lies in:
1. the jacket is a cooling block which is arranged in a concave-convex manner, so that the whole reactor can be quickly cooled, the cooling block is internally of a hollow structure and can be filled with a cooling medium, and then the temperature change is controlled by controlling the flowing speed of the cooling medium, so that the reactor is quick and convenient; the length of the cooling block is equal to that of the reactor, so that the outer periphery of the reactor body can be completely wrapped, and the cooling is quicker;
2. the spiral stirring blade of the stirrer penetrates through the reactor, so that the solvent in the reactor can be thoroughly stirred, and the rotating speed is controlled by the motor and the transmission device, so that the production requirement is met;
3. the flow velocity of the cooling medium is adjusted by matching the water inlet pipe, the water outlet pipe and the circulating water pump, so that the change of the cooling speed can be realized in a short time, and the filter screen at the water inlet of the water inlet pipe filters impurities to avoid the blockage phenomenon; the time for waiting for temperature reduction in the reaction is saved, and the productivity is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a jacket layer structure;
FIG. 3 is a schematic view of an expanded plan view of the jacket layer cooling block;
fig. 4 is a schematic structural view of embodiment 2 of the present invention.
In the figure: 1. a reactor body; 2. a jacket layer; 2-1, cooling blocks; 3. a transmission device; 4. a manhole; 5. a motor; 6. a feed pipe; 7. a stirrer; 7-1, a stirring shaft; 7-2, stirring blades; 8. a discharge pipe; 9. a safety valve; 10. a water inlet pipe; 11. a water outlet pipe; 12. an exhaust pipe; 13. a base.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.
Example 1:
as shown in the attached figure 1~3, the H acid solvent nitration equipment comprises a reactor body 1, a jacket layer 2, a stirrer 7 and a transmission device 3; the reactor comprises a reactor body 1, wherein a jacket layer 2 is tightly attached to the periphery of the reactor body 1, the jacket layer 2 is of a cylindrical structure with cooling blocks 2-1 uniformly distributed, a water inlet pipe 10 is arranged at the left end of the jacket layer 2, a water outlet pipe 11 is arranged at the right end of the jacket layer 2, the interior of each cooling block 2-1 is of a hollow structure, the top of each cooling block 2-1 is communicated with the water inlet pipe 10, and the bottom of each cooling block 2-1 is communicated with the water outlet pipe 11; a spiral stirrer 7 is arranged in the reactor, and the top end of the stirrer 7 is connected with a motor 5 through a transmission device 3; the left end of the reactor is provided with a feeding pipe 6, a safety valve 9 and a manhole 4, and the right end of the reactor is provided with a discharging pipe 8 and an exhaust pipe 12.
The cooling blocks 2-1 in the jacket layer 2 are in staggered concavo-convex shapes, namely, one of the two adjacent cooling blocks 2-1 is in a boss structure, the other cooling block is in a groove structure, the convex cooling block 2-1 is large in thickness and volume, and the entering amount of cooling media is large. The peripheral shape of the reactor body 1 is matched with the concave-convex structure of the jacket layer 2, so that when the solvent in the reactor body 1 is stirred by the stirrer 7, the solvent can be impacted by the concave-convex structure of the jacket layer 2, and the solvent can be mixed more fully. The jacket is the cooling block 2-1 which is arranged in a concave-convex mode, the whole reactor can be cooled rapidly, the cooling block 2-1 is internally of a hollow structure and can be filled with cooling media, and then the temperature change is controlled by controlling the flowing speed of the cooling media, so that the reactor is rapid and convenient. The length of the cooling block 2-1 is equal to that of the reactor, the outer periphery of the reactor body 1 can be completely wrapped, and cooling is quicker.
The reactor body 1 is provided with a temperature detector, so that the temperature change in the reactor body 1 can be monitored at any time, and the flow velocity of the cooling medium in the jacket layer 2 can be adjusted in time.
The exhaust pipe 12 is arranged at the top of the right end of the reactor, the exhaust pipe 12 leads to an exhaust device, and the exhaust device carries out environment-friendly treatment on harmful gas generated in the reaction.
The stirrer 7 comprises a stirring shaft 7-1 and stirring blades 7-2, the stirrer 7 extends from the left end of the reactor to the right end of the reactor, and the stirring blades 7-2 are spirally wound on the stirring shaft 7-1. Stirring is particularly important in the initial stages of nitration reactions, and especially in the feed stages of batch nitration reactions, it is very dangerous to stop stirring or to have the blades fall off. The spiral stirring blade 7-2 has better stability and can keep stable stirring speed under the control of the motor 5 and the transmission device 3.
The inlet tube 10 connect circulating water pump, outlet pipe 11 connect coolant tank, the filter screen is installed to inlet tube 10 water inlet, inlet tube 10 and cooling block 2-1, outlet pipe 11 establish ties together, it enters from inlet tube 10 to last through circulating water pump coolant, goes out from outlet pipe 11, the heat energy that reactor body 1 produced is taken away in coolant flow always, effectively cools down it.
The reactor body 1 bottom install base 13, because reactor body 1 is cylindrical, install firmly steadily on base 13.
In the specific implementation:
before the reaction starts, firstly, opening a water inlet pipe 10, closing a water outlet pipe 11, enabling a cooling medium to sequentially flow into a cooling block 2-1 in a jacket layer 2 from the water inlet pipe 10, after the cooling medium is full of the cooling medium, adding an H-acid solvent into a reactor body 1 from a feed inlet, starting a motor 5, driving a stirrer 7 to rotate by the motor 5 through a transmission device 3, starting to turn over and mix the H-acid solvent under the rotation of a stirring blade 7-2, and simultaneously impacting the inner wall of a concave-convex structure of the jacket layer 2 to enable the H-acid solvent to be more fully mixed; the water outlet pipe 11 and the circulating water pump are started, the cooling medium circularly flows, and the heat in the reaction is released in time under the cooling effect of the jacket layer 2.
In the process, the generated heat can raise the temperature in the reactor body 1, the numerical value of the thermometer is observed at any time, the flow rate of the cooling medium is adjusted, the cooling medium in the cooling block 2-1 in the jacket layer 2 can rapidly bring the heat out, and then the temperature of the reactor body 1 is stabilized at the required temperature until the nitration reaction of the H acid solvent is completed, and the H acid solvent is discharged from the discharge pipe 8 and enters the next process flow.
Example 2:
the structure of the embodiment is basically the same as that of the embodiment 1,
the difference lies in that; as shown in figure 4, the cooling blocks 2-1 in the jacket layer 2 are divided into two groups, and a water inlet pipe 10 and a water outlet pipe 11 are respectively arranged to form an independent circulating cooling system, so that the cooling efficiency is improved, and the temperature control is more timely and rapid.
The working principle and the using method of the embodiment are basically the same as those of the embodiment 1; it will not be described in detail.
The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essence of the present invention in any form, and any simple modification or variation of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified to equivalent variations by using the technical essence of the present invention by those of ordinary skill in the art after reading the present description still belong to the technical solution of the present invention without departing from the essence and scope of the present invention.
Claims (8)
1. An H acid solvent nitration device comprises a reactor body (1), a jacket layer (2), a stirrer (7) and a transmission device (3); the method is characterized in that: the reactor comprises a reactor body (1), wherein a jacket layer (2) is tightly attached to the periphery of the reactor body (1), the jacket layer (2) is of a cylindrical structure with cooling blocks (2-1) uniformly distributed, a water inlet pipe (10) is arranged at the left end of the jacket layer (2), a water outlet pipe (11) is arranged at the right end of the jacket layer, the interior of each cooling block (2-1) is of a hollow structure, the top of each cooling block (2-1) is communicated with the water inlet pipe (10), and the bottom of each cooling block (2-1) is communicated with the water outlet pipe (11); a spiral stirrer (7) is arranged in the reactor, and the top end of the stirrer (7) is connected with a motor (5) through a transmission device (3); the left end of the reactor is provided with a feeding pipe (6), a safety valve (9) and a manhole (4), and the right end of the reactor is provided with a discharging pipe and an exhaust pipe (12).
2. The H acid solvent nitration equipment according to claim 1, wherein: the cooling blocks (2-1) in the jacket layer (2) are in staggered concave-convex shapes, namely one cooling block (2-1) is in a boss structure, the other cooling block (2-1) is in a groove structure, the length of the cooling block (2-1) is equal to that of the reactor body (1), and the peripheral shape of the reactor body (1) is in concave-convex fit with the jacket layer (2).
3. The H acid solvent nitration equipment according to claim 1, wherein: the safety valve (9) is connected with a pressure gauge and an alarm device.
4. The H acid solvent nitration equipment according to claim 1, wherein: the reactor body (1) is provided with a temperature detector.
5. The H acid solvent nitration equipment according to claim 1, wherein: the exhaust pipe (12) is arranged at the top of the right end of the reactor, and the exhaust pipe (12) leads to an exhaust device.
6. The H acid solvent nitration equipment according to claim 1, wherein: the stirrer (7) comprises a stirring shaft (7-1) and stirring blades (7-2), wherein the stirrer (7) extends from the left end of the reactor to the right end of the reactor, and the stirring blades (7-2) are spirally wound on the stirring shaft (7-1).
7. The H acid solvent nitration equipment according to claim 1, wherein: the water inlet pipe (10) is connected with a circulating water pump, the water outlet pipe (11) is connected with a cooling water tank, and a filter screen is installed at the water inlet of the water inlet pipe (10).
8. The H acid solvent nitration equipment according to claim 1, wherein: the bottom of the reactor body (1) is provided with a base (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221395020.XU CN217796139U (en) | 2022-06-07 | 2022-06-07 | Nitration equipment for H acid solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221395020.XU CN217796139U (en) | 2022-06-07 | 2022-06-07 | Nitration equipment for H acid solvent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217796139U true CN217796139U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221395020.XU Active CN217796139U (en) | 2022-06-07 | 2022-06-07 | Nitration equipment for H acid solvent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217796139U (en) |
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2022
- 2022-06-07 CN CN202221395020.XU patent/CN217796139U/en active Active
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