A circulating steam heating device for environmentally friendly stannous neodecanoate that can replace stannous octoate
By adopting a circulating steam heating device in the production process of stannous neodecanoate, and using a steam jacket mechanism and a circulating heating mechanism, the problems of heat loss and energy waste are solved, and a more efficient heating and reaction process is achieved, reducing production costs.
Patent Information
- Application Number
- CN202421381645.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-18
AI Technical Summary
In the prior art, during the production of stannous neodecanoate, the loss of heat through the metal shell of the reactor cannot be effectively reduced during steam heating, resulting in temperature fluctuations in the reactor internally, increasing production cycle and cost, resulting in heat loss and energy waste.
A circulating steam heating device is adopted, including a reactor body, a circulating steam pump and a circulating pump, to form a steam jacket mechanism and a circulating heating mechanism. High-temperature steam is uniformly transferred to the material through the steam exhaust pipe, reducing heat loss, and achieving uniform circulation and heating of the material through the circulation pump.
It effectively reduces heat loss, improves heating efficiency and reaction efficiency, shortens production cycle, reduces production costs, and avoids energy waste.
Smart Images
Figure CN222709617U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyurethane catalysts, in particular to an environmentally friendly stannous neodecanoate circulating steam heating device which can replace stannous octoate. Background Art
[0002] The production process of stannous neodecanoate is as follows: metallic tin and hydrochloric acid are put into a reactor in a preset ratio for reaction to obtain a tin chloride solution. During the reaction, steam is used for heating to allow the metallic tin and hydrochloric acid to fully react, and the temperature rises to 90-95°C. A sodium carbonate solution is prepared, and the tin chloride solution is put into the sodium carbonate solution. After the reaction, solid-liquid separation is performed by a centrifuge to obtain tin powder. The obtained tin powder and neodecanoic acid are added to the reactor in a certain proportion for stirring, and steam is used for heating to raise the temperature to 105°C. After that, the steam is turned off to cool the reaction system to room temperature to obtain a crude stannous neodecanoate. The reactor is pressurized with nitrogen, and the crude stannous neodecanoate is pressed into the filter buffer tank. After filtration, pure stannous neodecanoate can be obtained. The process conditions are relatively mild and can avoid the risk of unpredictable reactions during the production process. The stannous neodecanoate produced by this process has stable quality and color, and the yield can reach more than 98%.
[0003] In the prior art, during steam heating in the process of producing stannous neodecanoate, insulation is only provided by the insulation coating on the outside of the reactor, which cannot effectively reduce the heat loss through the metal shell of the reactor. The temperature inside the reactor will fluctuate due to the influence of the external ambient temperature, and thus a longer heating time is required to reach the required reaction temperature, thereby increasing the production cycle and cost, and causing heat loss and energy waste. Utility Model Content
[0004] In order to solve the problems of large heat loss and energy waste mentioned in the above background technology, the utility model provides an environmentally friendly stannous neodecanoate circulating steam heating device which can replace stannous octoate.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A circulating steam heating device for environmentally friendly stannous neodecanoate that can replace stannous octoate comprises a reactor body, a circulating steam pump and a circulating pump, wherein the reactor body and the circulating steam pump are combined into a steam jacket mechanism, wherein the steam jacket mechanism comprises a steam generator fixedly connected to the outside of the reactor body, a connecting steam pipe fixedly connected to the steam generator and the outside of the circulating steam pump, a hollow support plate fixedly connected to the inside of the reactor body, and a plurality of steam exhaust pipes fixedly connected to the outside of the hollow support plate, wherein the steam generator can generate high-temperature steam, and the steam generator and the circulating steam pump are closely connected through the connecting steam pipe to ensure smooth transmission of steam, wherein a hollow support plate is installed inside the reactor body, and a hollow support plate outside the hollow support plate is provided. A plurality of steam exhaust pipes are fixedly arranged so that the steam can transfer heat to the material evenly. The reactor body and the circulating pump are combined into a circulating heating mechanism, which includes a transport pipe fixedly connected to the outside of the circulating pump, a connecting sleeve fixedly connected to the outside of the end of the transport pipe away from the circulating pump, and a diverter card fixedly connected to the outside of the end of the transport pipe away from the circulating pump. A feed port is arranged on the top of the reactor body, and the circulating steam pump is fixedly connected to the outside of the reactor body. The circulating pump is fixedly connected to the outside of the reactor body to ensure that the material can be evenly extracted from the bottom of the reactor body and re-injected into the top of the reactor body, thereby realizing the circulating heating of the material and making it heated more evenly.
[0007] Furthermore, a steam cavity is provided inside the hollow support plate, a material passing hole is provided outside the hollow support plate, a connecting valve is fixedly connected to the outside of the connecting steam pipe, the steam exhaust pipe is fixedly connected to the connecting steam pipe, and a pressure relief valve is fixedly connected to the outside of the steam generator. When the material is injected into the reactor body for reaction, the high-temperature steam inside the steam exhaust pipe is used to transfer heat to the material. The steam exhaust pipe is evenly distributed inside the reactor body, which is convenient for heating the material as a whole and improves the heating efficiency of the device.
[0008] Furthermore, a hopper is connected to the inner bottom of the reactor body, the hopper is provided with a discharge port, the connecting sleeve is movably connected to the discharge port, and a diffusion disk is fixedly connected to the outside of the diversion card. During the heating process, the material at the bottom of the reactor body is transported and transferred by a circulating pump, injected into the top of the reactor body, and then returned to join the reaction, ensuring that the material is heated more evenly.
[0009] Furthermore, there are multiple groups of connecting steam pipes and they are symmetrically distributed outside the steam generator and the circulating steam pump, there are multiple groups of steam exhaust pipes and they are evenly distributed outside the hollow support plate, there are two groups of hollow support plates and they are symmetrically distributed inside the reactor body, and the connecting steam pipes are movably connected to the reactor body.
[0010] Furthermore, there are two groups of transport pipes which are symmetrically distributed outside the circulation pump, and the transport pipes are movably connected to the reactor body.
[0011] Furthermore, a support column is fixedly connected to the outside of the hopper, and a support gasket is fixedly connected to the outside of one end of the support column away from the hopper.
[0012] Furthermore, the support columns are provided in several groups and are evenly distributed outside the hopper.
[0013] Furthermore, a heat-insulating cavity is provided inside the reactor body.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. In this technical solution, after the material is injected into the reactor through the feed port, the heat is transferred to the material as a whole through the steam exhaust pipe to prevent the material from being overheated locally. The steam exhaust pipes are mutually protected, and the gaps between them form a jacket, which reduces heat loss and greatly increases the heating area.
[0016] 2. During the reaction of the materials, the materials at the bottom of the reactor body are transported through the transport pipe by the circulation pump, and then dispersed and refluxed by the diverter card and the diffusion disk, and then the materials are evenly stirred into the reactor body again to ensure that the materials inside the reactor body are evenly heated in the vertical direction, to prevent some materials standing in the corner from missing the reaction, and to improve the reaction efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a structural schematic diagram of the device;
[0019] Figure 2 It is a structural schematic diagram of the shell of the reactor body;
[0020] Figure 3 It is a schematic diagram of part of the internal structure of the steam jacket mechanism;
[0021] Figure 4 It is a structural schematic diagram of a circulating heating mechanism;
[0022] Figure 5 It is a schematic diagram of the enlarged structure at A;
[0023] In the figure: 1. Reactor body; 2. Feed inlet; 3. Insulation chamber; 4. Hopper; 5. Discharge port; 6. Support column; 7. Support gasket; 8. Hollow support plate; 9. Feed hole; 10. Steam cavity; 11. Steam exhaust pipe; 12. Steam generator; 13. Connecting steam pipe; 14. Circulating steam pump; 15. Connecting valve; 16. Pressure relief valve; 17. Circulating pump; 18. Transport pipe; 19. Connecting sleeve; 20. Diverter card; 21. Diffuser plate. DETAILED DESCRIPTION
[0024] The following will clearly and completely describe the technical solution of the utility model in conjunction with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example 1
[0026] After the material is injected into the reactor body 1 through the feed port 2 on the top of the reactor body 1, the steam generator 12 is turned on to fill the steam exhaust pipe 11 with high-temperature steam and heat the material inside the reactor body 1, and the circulating steam pump 14 is turned on to drive the steam inside the steam exhaust pipe 11 to flow, ensuring that the temperature inside the steam exhaust pipe 11 remains stable, and the material and the steam exhaust pipe 11 are in close contact to react by heat transfer, and the steam exhaust pipes 11 are mutually protected, and the gaps between them form a jacket, which reduces heat loss and greatly increases the heating area.
[0027] Example 2
[0028] During the heat transfer process, the circulation pump 17 is turned on to drive the material at the bottom of the hopper 4 to be transported through the transport pipe 18 connected to the discharge port 5, and then the heating reaction process is re-added to the top of the reactor body 1. During this process, under the diversion of the diversion card 20 and the dispersion of the diffusion disk 21, the material is again evenly stirred into the reactor body 1 to ensure that the material inside the reactor body 1 is evenly heated in the vertical direction, to prevent some materials standing in the corner from missing the reaction, and to improve the reaction efficiency of the device.
[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An environmentally friendly circulating steam heating device for stannous neodecanoate that can replace stannous octoate, comprising a reaction kettle (1), a circulating steam pump (14) and a circulating pump (17), characterized in that: The reactor body (1) and the circulating steam pump (14) are combined together to form a steam jacket mechanism, and the steam jacket mechanism comprises a steam generator (12) fixedly connected to the outside of the reactor body (1), a connecting steam pipe (13) fixedly connected to the steam generator (12) and the outside of the circulating steam pump (14), a hollow support plate (8) fixedly connected to the inside of the reactor body (1), and a plurality of steam exhaust pipes (11) fixedly connected to the outside of the hollow support plate (8). The reactor body (1) and the circulating pump (17) are combined together to form a circulating heating The circulating heating mechanism comprises a transport pipe (18) fixedly connected to the outside of a circulating pump (17), a connecting sleeve (19) fixedly connected to the outside of one end of the transport pipe (18) away from the circulating pump (17), and a diverter card (20) fixedly connected to the outside of one end of the transport pipe (18) away from the circulating pump (17). A feed inlet (2) is provided at the top of the reactor body (1), the circulating steam pump (14) is fixedly connected to the outside of the reactor body (1), and the circulating pump (17) is fixedly connected to the outside of the reactor body (1).
2. The environmentally friendly stannous neodecanoate circulating steam heating device that can replace stannous octoate according to claim 1, characterized in that: A steam cavity (10) is provided inside the hollow support plate (8), a material passage hole (9) is provided outside the hollow support plate (8), a connecting valve (15) is fixedly connected to the outside of the connecting steam pipe (13), the steam exhaust pipe (11) is fixedly connected to the connecting steam pipe (13), and a pressure relief valve (16) is fixedly connected to the outside of the steam generator (12).
3. The circulating steam heating device of an environmentally friendly stannous neodecanoate that can replace stannous octoate according to claim 1, characterized in that: A hopper (4) is fixedly connected to the bottom of the reactor body (1), the hopper (4) is provided with a discharge port (5), the connecting sleeve (19) is movably connected to the discharge port (5), and a diffusion plate (21) is fixedly connected to the outside of the diverter card (20).
4. The environmentally friendly stannous neodecanoate circulating steam heating device that can replace stannous octoate according to claim 1, characterized in that: The connecting steam pipes (13) are provided in a plurality of groups and are symmetrically distributed outside the steam generator (12) and the circulating steam pump (14); the steam exhaust pipes (11) are provided in a plurality of groups and are evenly distributed outside the hollow support plate (8); the hollow support plates (8) are provided in two groups and are symmetrically distributed inside the reactor body (1); and the connecting steam pipes (13) are movably connected to the reactor body (1).
5. The circulating steam heating device of an environmentally friendly stannous neodecanoate that can replace stannous octoate according to claim 1, characterized in that: The transport pipes (18) are provided in two groups and are symmetrically distributed outside the circulation pump (17). The transport pipes (18) are movably connected to the reaction kettle body (1).
6. The circulating steam heating device of an environmentally friendly stannous neodecanoate that can replace stannous octoate according to claim 3, characterized in that: The hopper (4) is fixedly connected to the outside with a support column (6), and one end of the support column (6) away from the hopper (4) is fixedly connected to the outside with a support gasket (7).
7. The environmentally friendly stannous neodecanoate circulating steam heating device that can replace stannous octoate according to claim 6, characterized in that: The support columns (6) are provided in several groups and are evenly distributed outside the hopper (4).
8. The environmentally friendly stannous neodecanoate circulating steam heating device capable of replacing stannous octoate according to claim 1, characterized in that: A heat-insulating cavity (3) is provided inside the reaction kettle body (1).