Safe reaction kettle for chemical reaction

Abstract

The utility model discloses a safe reaction kettle for chemical reaction, which relates to the technical field of reaction kettles and comprises a reaction kettle component, a reaction kettle cover and a reaction kettle cover, the stirring assembly comprises a main shaft connected with the driving end of the motor and a stirring paddle mounted at the bottom of the main shaft; the high-temperature-resistant scraping plate comprises a cavity formed in the main shaft, a partition plate which is mounted in the cavity and divides the cavity into two cavity channels, and a rotary joint which is matched above the main shaft in an up-down staggered manner; wherein first inlets and outlets are formed in the positions, corresponding to the interiors of the rotary joints, above the cavity channels, a pair of outlets are formed in the lower portion of one cavity channel, thermal expansion deformation of the scraper body is restrained through cooling water, and furthermore, the distance between the scraper body and the kettle wall is not constant any more under the elastic effect of the U-shaped elastic pieces; the distance between the side arm, the scraper body and the like and the kettle wall after thermal expansion deformation is adapted, meaningless abrasion of the kettle wall is avoided, and the use safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to reaction kettle technical field, specifically, it relates to a safe reaction kettle for chemical industry. BACKGROUND

[0002] In a large number of chemical reactions carried out in the reaction kettle, many types of reactions will release a large amount of heat, or the environment in the kettle needs to be heated, which will cause the temperature in the reaction kettle to rise sharply, due to thermal expansion and contraction, for some specific paddle forms, especially with a scraper structure, in the form of cleaning the kettle wall by scraper during stirring, since the scraper needs to be attached to the kettle wall to clean the kettle wall, therefore, during the thermal expansion of the material, the scraper will be squeezed onto the kettle wall, so that in the subsequent rotation process, the scraper will continuously wear the kettle wall, and further cause safety incidents.

[0003] To solve the above problems, a safe reaction kettle for chemical industry is provided. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, a safe reaction kettle for chemical industry is provided, which solves the problems raised in the background technology.

[0005] To achieve the above purposes, the utility model can adopt the following technical solutions:

[0006] The utility model provides a safe reaction kettle for chemical industry, which comprises:

[0007] The reaction kettle assembly comprises a kettle body;

[0008] The stirring assembly comprises a rack installed in the middle of the top of the kettle body, a motor installed on the top of the rack, a main shaft connected with the driving end of the motor, and a stirring paddle installed on the bottom of the main shaft; and

[0009] The high-temperature-resistant scraper comprises a cavity arranged in the interior of the main shaft, a partition plate installed in the interior of the cavity and separating it into two cavities, and a rotary joint matched above the main shaft in an upper and lower staggered manner;

[0010] Wherein, the interior of the rotary joint is provided with an inlet and outlet one above the cavity, one pair of outlets is arranged below one of the cavities, and one pair of inlets is arranged in the middle of the other cavity;

[0011] The high-temperature resistant scraper also includes a sleeve fitted in the middle and lower part of the frame, side arms connected to both sides of the sleeve, and a U-shaped spring connected to the outer end of the side arms. It also includes scraper bodies on both sides of the main shaft. The upper and lower parts of the scraper bodies are respectively connected to the U-shaped springs. The scraper body has a through channel from top to bottom inside, and the upper and lower ends of the channel are connected to the outside. It also includes four connecting pipes.

[0012] The connecting pipe has a U-shaped bend and a straight section. Two of the straight sections of the connecting pipe are connected to the outlet, and their U-shaped bends are connected to the bottom end of the channel of the scraper body. The other two straight sections of the connecting pipe are connected to the inlet, and their U-shaped bends are connected to the top end of the channel of the scraper body.

[0013] Furthermore, a thermometer is connected to the top of the vessel.

[0014] Furthermore, a pressure gauge is connected to the top of the vessel.

[0015] Furthermore, a viewing mirror is connected to the top of the vessel.

[0016] Furthermore, a feeding port is connected to the top of the vessel.

[0017] Furthermore, the top of the vessel is connected to multiple extended inlet pipe flanges.

[0018] Furthermore, the vessel body is externally connected to a jacket.

[0019] Furthermore, a discharge port is connected to the bottom of the vessel.

[0020] As described above, the features and advantages of the safety reactor for chemical reactions in this utility model are:

[0021] Cooling water flows into the channel of the scraper body through the rotary joint. Heat exchange in the channel lowers the temperature of the scraper body, thereby suppressing thermal expansion deformation. At the same time, the cooling water flowing through the jacket also helps to cool the vessel because the outer end of the scraper body is in contact with the vessel wall. Furthermore, due to the elasticity of the U-shaped spring, the distance between the scraper body and the vessel wall is no longer constant. Through its elastic deformation, it adapts to the distance between the side arm, scraper body and the vessel wall after thermal expansion deformation, avoiding unnecessary wear on the vessel wall and improving the safety of use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the safety reactor for chemical reactions shown in this utility model;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 for Figure 1 Another perspective diagram of the structure;

[0025] Figure 4 This is a schematic diagram of the high-temperature resistant scraper assembly of the chemical reaction safety reactor shown in this utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the main shaft of the safety reactor for chemical reactions shown in this utility model;

[0027] Figure 6 This is a schematic diagram of the inlet and outlet and rotary joint structure of the safety reactor for chemical reactions shown in this utility model;

[0028] Figure 7 for Figure 6 Another perspective diagram of the structure;

[0029] Figure 8 This is a schematic diagram of the structure of a portion of the high-temperature resistant scraper of the chemical reaction safety reactor shown in this utility model;

[0030] Figure 9 for Figure 8 A schematic diagram of the structure from another perspective.

[0031] The reference numerals in the accompanying drawings of this utility model are as follows: 1. Reactor assembly; 101. Reactor body; 102. Thermometer; 103. Pressure gauge; 104. Sight glass; 105. Feed port; 106. Extended inlet flange; 107. Jacket; 108. Discharge port; 2. Stirring assembly; 201. Frame; 202. Motor; 203. Main shaft; 204. Stirring paddle; 3. High-temperature resistant scraper; 301. Cavity; 302. Partition; 303. Inlet / outlet; 304. Rotary joint; 305. Pipe sleeve; 306. Side arm; 307. U-shaped spring; 308. Scraper body; 309. Connecting pipe; 310. U-shaped bend section. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] See 1~ Figure 9 The following is a detailed description of an embodiment of the present invention, which provides a safe reaction vessel for chemical reactions:

[0034] A safety reaction vessel for chemical reactions, comprising:

[0035] The reactor assembly 1 includes a reactor body 101.

[0036] The mixing assembly 2 includes a frame 201 installed at the top center of the vessel body 101, a motor 202 installed at the top of the frame 201, a main shaft 203 connected to the drive end of the motor 202, and a stirring paddle 204 installed at the bottom of the main shaft 203. The mixing of materials is achieved by driving the stirring paddle 204.

[0037] The high-temperature resistant scraper 3 includes a cavity 301 located inside the main shaft 203, a partition 302 installed inside the cavity 301 and dividing it into two channels, and a rotary joint 304 that is staggered above the main shaft 203. In this embodiment, the rotary joint 304 adopts the prior art. The rotary joint 304 and the main shaft 203 are assembled by a rotatable connection. Of course, a sealing structure is also required to achieve good sealing when the cooling water flows.

[0038] Each cavity has an inlet / outlet 303 corresponding to the interior of the rotary joint 304. One cavity has a pair of outlets at the bottom and the other cavity has a pair of inlets in the middle.

[0039] The high-temperature resistant scraper 3 also includes a sleeve 305 fitted in the middle and lower part of the frame 201, side arms 306 connected to both sides of the sleeve 305, and a U-shaped spring piece 307 connected to the outer end of the side arm 306. It also includes scraper bodies 308 located on both sides of the main shaft 203. The upper and lower parts of the scraper body 308 are respectively connected to the U-shaped spring piece 307. The scraper body 308 has a through channel from top to bottom inside, and the upper and lower ends of the channel are connected to the outside. It also includes four connecting pipes 309.

[0040] The connecting pipe 309 has a U-shaped bend section 310 and a straight section. The straight sections of two connecting pipes 309 are connected to the outlet, and their U-shaped bend sections 310 are connected to the bottom end of the channel of the scraper body 308. The straight sections of the other two connecting pipes 309 are connected to the inlet, and their U-shaped bend sections 310 are connected to the top end of the channel of the scraper body 308.

[0041] In this embodiment, cooling water enters the cavity through the rotary joint 304, then flows into the corresponding connecting pipe 309 through the outlet, and then into the channel of the scraper body 308. In the channel, heat exchange causes the temperature of the scraper body 308 to drop, thereby suppressing thermal expansion deformation. Then, the hot water is introduced into the inlet through the connecting pipe 309 above, and then flows back into the cooling water pipeline system through another cavity and the rotary joint 304. Furthermore, due to the elastic effect of the U-shaped spring sheet 307, the distance between the scraper body 308 and the vessel wall is no longer constant. Thus, its elastic deformation adapts to the distance between the side arm 306, the scraper body 308 and the vessel wall after thermal expansion deformation, avoiding unnecessary wear on the vessel wall and improving the safety of use.

[0042] In this embodiment, in order to improve the durability of the connecting pipe 309 under thermal expansion deformation, a bending section is designed to leave a redundancy for thermal expansion deformation.

[0043] Furthermore, a thermometer 102 is connected to the top of the vessel body 101.

[0044] Furthermore, a pressure gauge 103 is connected to the top of the vessel body 101.

[0045] Furthermore, a viewing mirror 104 is connected to the top of the vessel body 101.

[0046] Furthermore, a feeding port 105 is connected to the top of the vessel body 101.

[0047] Furthermore, the top of the vessel body 101 is connected to multiple extended inlet pipe flanges 106.

[0048] Furthermore, the vessel body 101 is externally connected to a jacket 107.

[0049] Furthermore, a discharge port 108 is connected to the bottom of the vessel body 101.

[0050] Based on the above embodiments, the following is the complete working process and working principle of the above embodiments:

[0051] The working procedure is as follows: First, the jacket 107 is connected to the cooling water pipeline system in the usual manner. Then, the two rotary joints 304 are connected to the inlet and outlet ends of the cooling water pipeline system, respectively. The connection rule is that the cavity with the outlet structure is connected to the outlet end of the cooling water pipeline system through one of the rotary joints 304, and the cavity with the inlet structure is connected to the inlet end of the cooling water pipeline system through the other rotary joint 304. The cooling scraper body 308 is used to suppress thermal expansion deformation by cooling. Then, according to the general operation method of the reactor, the reactor is operated in an orderly manner through the thermometer 102, pressure gauge 103, sight glass 104, feeding port 105, extended inlet pipe flange 106, and discharge port 108. During the reaction, the stirring paddle 204 is driven to stir the materials to fully mix and improve the reaction efficiency. At the same time, cooling water is used to cool the materials. The hot water enters the cavity through the rotary joint 304, then flows into the corresponding connecting pipe 309 through the outlet, and then into the channel of the scraper body 308. In the channel, heat exchange causes the temperature of the scraper body 308 to drop, thereby suppressing thermal expansion deformation. Then, the hot water is introduced into the inlet through the connecting pipe 309 above, and then flows back into the cooling water pipeline system through another cavity and the rotary joint 304. At the same time, it flows through the cooling water inside the jacket 107. Since the outer end of the scraper body 308 is in contact with the vessel wall, the scraper body 308 can also be cooled by this part of the cooling water. Furthermore, due to the elastic effect of the U-shaped spring sheet 307, the distance between the scraper body 308 and the vessel wall is no longer constant. Thus, its elastic deformation adapts to the distance between the side arm 306, the scraper body 308 and the vessel wall after thermal expansion deformation, avoiding unnecessary wear on the vessel wall and improving the safety of use.

[0052] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A safe reaction vessel for chemical reactions, characterized in that, include: A reactor assembly (1) includes a vessel body (101); A stirring assembly (2) includes a frame (201) mounted at the center of the top of the vessel body (101), a motor (202) mounted on the top of the frame (201), a main shaft (203) connected to the drive end of the motor (202), and a stirring paddle (204) mounted at the bottom of the main shaft (203); and, The high-temperature resistant scraper (3) includes a cavity (301) disposed inside the main shaft (203), a partition (302) installed inside the cavity (301) and dividing it into two channels, and a rotary joint (304) arranged in a staggered manner above the main shaft (203). The cavity is provided with an inlet and outlet (303) above the rotary joint (304), and a pair of outlets are provided below the cavity and a pair of inlets are provided in the middle of the cavity. The high-temperature resistant scraper (3) also includes a sleeve (305) fitted in the middle and lower part of the frame (201), side arms (306) connected to both sides of the sleeve (305), and a U-shaped spring piece (307) connected to the outer end of the side arm (306). It also includes a scraper body (308) provided on both sides of the main shaft (203). The upper and lower parts of the scraper body (308) are respectively connected to the U-shaped spring piece (307). The scraper body (308) has a through channel from top to bottom inside, and the upper and lower ends of the channel are connected to the outside. It also includes four connecting pipes (309). The connecting pipe (309) has a U-shaped bend (310) and a straight section. The straight sections of two of the connecting pipes (309) are connected to the outlet, and their U-shaped bends (310) are connected to the bottom end of the channel of the scraper body (308). The straight sections of the other two connecting pipes (309) are connected to the inlet, and their U-shaped bends (310) are connected to the top end of the channel of the scraper body (308).

2. The safety reactor for chemical reactions according to claim 1, characterized in that: A thermometer (102) is connected to the top of the vessel body (101).

3. The safety reactor for chemical reactions according to claim 2, characterized in that: A pressure gauge (103) is connected to the top of the vessel body (101).

4. A safe reaction vessel for chemical reactions according to claim 3, characterized in that: A viewing mirror (104) is connected to the top of the vessel body (101).

5. A safe reaction vessel for chemical reactions according to claim 4, characterized in that: The top of the vessel body (101) is connected to a feeding port (105).

6. A safe reaction vessel for chemical reactions according to claim 5, characterized in that: The top of the vessel body (101) is connected to multiple extended inlet pipe flanges (106).

7. A safe reaction vessel for chemical reactions according to claim 6, characterized in that: The vessel body (101) is externally connected to a jacket (107).

8. A safe reaction vessel for chemical reactions according to claim 7, characterized in that: The bottom of the vessel body (101) is connected to a discharge port (108).

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