Structure cleaning device and pressurized reaction kettle

Abstract

The utility model discloses a structure cleaning device and a pressurized reaction kettle, and belongs to the field of medical intermediates. The structure cleaning device comprises a variable speed motor fixedly mounted at the upper end of the reaction kettle body; the transmission shaft is fixedly connected to the output end of the variable speed motor, and the transmission shaft is vertically arranged and extends downwards into the reaction kettle body; compared with a pressurized reaction kettle in the prior art, the pressurized reaction kettle disclosed by the utility model has the advantages that whether the scraper is attached to the inner wall of the reaction kettle body or not can be controlled according to use requirements, so that the cleaning effect on the inner wall of the reaction kettle body can be ensured, and more scales can be prevented from being generated at the position where the inner wall of the reaction kettle body is attached to the scraper when the pressurized reaction kettle is not used; therefore, the service life of the reaction kettle body and the service life of the scraping plate are effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of equipment in pharmaceutical intermediates, and specifically relates to a structure cleaning device and a pressure reaction kettle. Background Art

[0002] A pressurized reactor is a container for chemical reactions. In order to adapt to the different requirements of various working conditions, there are many types of pressurized reactors, which are widely used in the fields of fine chemicals and pharmaceutical intermediates. The existing reactor is a comprehensive reaction vessel. The design of the reactor structure, function and accessories is based on the reaction conditions. During long-term use, the inner wall of the existing pressurized reactor will form scale, which will cause corrosion to the shell of the reactor. However, it is difficult to clean the scale.

[0003] In the prior art, the application number is CN201821541249.3, and the name is: A pressurized reactor. A pressurized reactor is disclosed, including a cylinder, a motor housing is provided at the top of the cylinder, a motor is provided on the top wall of the motor housing, the output end of the motor is coaxially connected with the input end of the reducer, the reducer is fixedly connected to the motor housing, the output end of the reducer is coaxially connected with a stirring shaft, the bottom end of the stirring shaft passes through the top wall of the cylinder and extends into the cylinder, stirring blades are provided on the outer walls on both sides and the bottom end of the bottom of the stirring shaft, and a connecting rod is provided in the middle of the bottom end of the stirring blade.

[0004] Although the above-mentioned prior art can scrape and clean the scale on the inner wall of the reactor by means of a scraper, when the inner wall of the reactor is not cleaned, the scraper does not rotate under the action of the ratchet. Therefore, during long-term use, more scale will be generated in the adjacent area between the inner wall of the reactor and the scraper. Although the scale on the inner wall of the reactor can be scraped off by driving the scraper to rotate, the scale will adhere to the scraper and corrode it when it is not cleaned. Therefore, the service life of the scraper will be greatly reduced, and it will also affect the subsequent cleaning effect of the inner wall of the reactor. In view of this, the present utility model is specially proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a structural cleaning device and a pressurized reactor which can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: a structural cleaning device, comprising: a variable speed motor fixedly installed on the upper end of the reactor body; a transmission shaft, fixedly connected to the output end of the variable speed motor, the transmission shaft is vertically arranged and extends downward to the inside of the reactor body; a plurality of groups of self-resetting telescopic rods, fixedly connected to the transmission shaft at equidistant intervals around the circumference and located inside the reactor body; a scraper, fixedly connected to one end of each group of the self-resetting telescopic rods away from the transmission shaft.

[0007] In order to make the scraper fit more closely with the inner wall of the reactor body, further, an electromagnetic ring is embedded in the side wall of the reactor body, and the scraper is a stainless steel plate with ferromagnetism.

[0008] A pressurized reactor adopts a structural cleaning device. The upper side of the reactor body is connected to a feed pipe, and the side of the reactor body away from the feed pipe is respectively connected to a pressurizing pipe and a reducing pipe. A pressure gauge is installed on the reactor body, and the detection end of the pressure gauge extends into the reactor body. A discharge pipe is connected to the lower side of the reactor body. A sealing cover is threadedly connected to the discharge pipe, and the sealing cover is provided with a through port that is the same as the discharge pipe. The through ports of the pressurizing pipe, the reducing pipe and the sealing cover are all provided with a first solenoid valve, and a heating component is provided on the reactor body.

[0009] Furthermore, the heating component includes a water inlet pipe, a reflux pipe and a drain pipe. A heating cavity is opened in the kettle wall of the reaction kettle body. Water inlets and reflux ports are symmetrically opened at the upper ends of both sides of the heating cavity. A drain port is opened at the lower end of the heating cavity near the discharge pipe. The water inlet pipe, reflux pipe and drain pipe are respectively connected to the water inlet, reflux port and drain port of the heating cavity. A second solenoid valve is arranged in the drain port.

[0010] In order to improve the sealing performance of the reactor body, further, a support plate is fixedly connected to one side of the feed pipe, an L-shaped plate is rotatably connected to the support plate, a T-shaped screw is threadedly connected to the side of the L-shaped plate away from the support plate, a sealing plug is fixedly connected to the lower end of the T-shaped screw, the sealing plug is threadedly connected to the inner wall of the feed pipe, and a circle of sealing ring is provided on the sealing plug.

[0011] In order to facilitate observation of the reaction status of the product in the reactor body, a transparent plate is further fixedly connected to the reactor body.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: compared with the pressurized reactor in the prior art, the utility model can control whether the scraper is in contact with the inner wall of the reactor body according to the use requirements through the coordinated use of components such as a variable speed motor, a transmission shaft, and a self-resetting telescopic rod, which can not only ensure the cleaning effect of the inner wall of the reactor body, but also avoid the formation of more scaling at the position where the inner wall of the reactor body and the scraper are in contact when not in use, which causes corrosion to the reactor body and the scraper, and effectively improves the service life of the reactor body and the scraper.

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the attached picture:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the transmission shaft, the self-resetting telescopic rod and the scraper in the utility model.

[0018] In the figure: 1. Reactor body; 101. Pressurizing pipe; 102. Decompression pipe; 103. Pressure gauge; 104. Discharge pipe; 105. Sealing cover; 106. Transparent plate; 107. Heating cavity; 108. Water inlet pipe; 109. Reflux pipe; 1010. Drain pipe; 1011. Feed pipe; 1012. L-shaped plate; 1013. Sealing plug; 1014. T-screw; 1015. Sealing ring; 1016. Electromagnetic ring; 2. Variable speed motor; 201. Transmission shaft; 202. Self-resetting telescopic rod; 203. Scraper. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0020] Embodiment 1:

[0021] Reference Figure 1-Figure 3The structure cleaning device includes: a variable speed motor 2 fixedly installed on the upper end of the reactor body 1; a transmission shaft 201, fixedly connected to the output end of the variable speed motor 2, the transmission shaft 201 is vertically arranged, and extends downward to the inside of the reactor body 1; a plurality of groups of self-resetting telescopic rods 202, fixedly connected to the transmission shaft 201 at equidistant intervals around the circumference, and located in the reactor body 1; a scraper 203, fixedly connected to one end of each group of self-resetting telescopic rods 202 away from the transmission shaft 201.

[0022] It should be noted that, when the self-resetting telescopic rod 202 is in the initial state, it is in a retracted state, so that the scraper 203 is in contact with the inner wall of the reactor body 1 .

[0023] When the product is subjected to high temperature and high pressure treatment, the variable speed motor 2 can be started, and the variable speed motor 2 will drive the transmission shaft 201 to rotate, and the transmission shaft 201 will drive the scraper 203 to rotate through the self-resetting telescopic rod 202. By controlling the scraper 203 to rotate at a low speed, the scraper 203 will not be in contact with the inner wall of the reactor body 1, so that the product can be better stirred. In actual use, a stirring rod can also be set on the side of the scraper 203 close to the transmission shaft 201, so as to further improve the stirring effect on the product.

[0024] When the reactor body 1 has been used for a period of time and scale is attached to the inner wall, it needs to be cleaned. At this time, the output power of the variable speed motor 2 can be increased, and the variable speed motor 2 will drive the scraper 203 to rotate rapidly through the transmission shaft 201 and the self-resetting telescopic rod 202. Then, the scraper 203 will overcome the pulling force of the self-resetting telescopic rod 202 and move outward under the action of centrifugal force, so that the scraper 203 can fit the inner wall of the reactor body 1 under the action of centrifugal force, and then the scale attached to the inner wall of the reactor body 1 will be removed by the scraper 203. The scraper 203 is scraped off during rotation. By using the variable speed motor 2, the transmission shaft 201, the self-resetting telescopic rod 202 and other components in coordination, compared with the pressurized reactor in the prior art, it can control whether the scraper 203 is in contact with the inner wall of the reactor body 1 according to the use requirements, which can not only ensure the cleaning effect of the inner wall of the reactor body 1, but also avoid the formation of more scaling at the position where the inner wall of the reactor body 1 and the scraper 203 are in contact when not in use, which will cause corrosion to the reactor body 1 and the scraper 203, and effectively improve the service life of the reactor body 1 and the scraper 203.

[0025] Embodiment 2:

[0026] Reference Figure 1-Figure 3, the structure of the cleaning device is basically the same as that of Example 1, and further: an electromagnetic ring 1016 is embedded in the side wall of the reactor body 1, and the scraper 203 is a ferromagnetic stainless steel plate. When the variable speed motor 2 drives the scraper 203 to rotate at a high speed, the scraper 203 will overcome the pulling force of the self-resetting telescopic rod 202 under the action of centrifugal force and approach the inner wall of the reactor body 1 until it is in contact with the inner wall of the reactor body 1, and then the electromagnetic ring 1016 can be energized to make the electromagnetic ring 1016 obtain magnetic force, and then the ferromagnetic scraper 203 will be more closely attached to the inner wall of the reactor body 1 under the adsorption of the electromagnetic ring 1016, thereby ensuring the cleaning effect of the scale on the inner wall of the reactor body 1.

[0027] Embodiment 3:

[0028] Reference Figure 1-Figure 3 , a pressurized reactor, including the structural cleaning device in Example 2, a feed pipe 1011 is connected to one side of the upper end of the reactor body 1, and a pressurizing pipe 101 and a reducing pipe 102 are respectively connected to the side of the reactor body 1 away from the feed pipe 1011, a pressure gauge 103 is installed on the reactor body 1, and the detection end of the pressure gauge 103 extends into the reactor body 1, and a discharge pipe 104 is connected to the lower side of the reactor body 1, and a sealing cover 105 is threadedly connected to the discharge pipe 104, and the sealing cover 105 is provided with a through port that is the same as that of the discharge pipe 104, and the through ports of the pressurizing pipe 101, the reducing pipe 102 and the sealing cover 105 are all provided with a first solenoid valve, and a heating component is provided on the reactor body 1.

[0029] The heating assembly includes a water inlet pipe 108, a reflux pipe 109 and a drain pipe 1010. A heating cavity 107 is opened in the kettle wall of the reactor body 1. Water inlets and reflux ports are symmetrically opened on the upper ends of both sides of the heating cavity 107. A drain port is opened at the lower end of the heating cavity 107 near the discharge pipe 104. The water inlet pipe 108, the reflux pipe 109 and the drain pipe 1010 are respectively connected to the water inlet, reflux port and drain port of the heating cavity 107, and a second solenoid valve is arranged in the drain port.

[0030] A support plate is fixedly connected to one side of the feed pipe 1011, and an L-shaped plate 1012 is rotatably connected to the support plate. A T-shaped screw 1014 is threadedly connected to the side of the L-shaped plate 1012 away from the support plate. A sealing plug 1013 is fixedly connected to the lower end of the T-shaped screw 1014. The sealing plug 1013 is threadedly connected to the inner wall of the feed pipe 1011, and a circle of sealing ring 1015 is provided on the sealing plug 1013.

[0031] A transparent plate 106 is fixedly connected to the reactor body 1 .

[0032] When it is necessary to add the product into the reactor body 1 for pressurized reaction, the sealing plug 1013 is first opened, and then the staff can pour the product to be reacted into the reactor body 1 through the feed pipe 1011. After the addition is completed, the L-shaped plate 1012 can be rotated to make the sealing plug 1013 located directly above the feed pipe 1011, and then the T-shaped screw 1014 can be rotated to move the sealing plug 1013 downward. When the sealing plug 1013 contacts the feed pipe 1011, the sealing plug 1013 will be screwed into the feed pipe 1011 under the action of the thread until the sealing ring 1015 is tightly attached to the feed pipe 1011 and the sealing plug 1013, thereby completing the sealing of the feed pipe 1011, and then the water inlet pipe 108 and the reflux pipe 109 can be connected to the external hot water supply equipment respectively, and then the external hot water supply equipment can be started to supply hot water to the heating cavity 10 through the water inlet pipe 108. 7, when the heating cavity 107 is filled with hot water, the hot water will flow back into the hot water supply device through the reflux pipe 109 for reheating, so as to ensure that the hot water in the heating cavity 107 is kept within a certain temperature range, and the heating effect of the product in the reactor body 1 is ensured. Then, the high-pressure protective gas can be transported into the reactor body 1 through the pressurizing pipe 101, and the pressure in the reactor body 1 can be detected by the pressure gauge 103. When the reactor body 1 is pressurized to the specified pressure value, the cleaning device can be rotated at a low speed to stir the product and increase the reaction rate of the product. After the pressurized reaction is completed, the pressure reducing pipe 102 can be opened, and then the protective gas can be recovered, and the pressure in the reactor body 1 can be reduced. After the pressure is reduced to the normal pressure, the first solenoid valve in the sealing cover 105 can be opened, and then the reacted product can be discharged from the reactor body 1.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A structure cleaning device, characterized in that: include: A variable speed motor (2) fixedly mounted on the upper end of the reaction vessel body (1); A transmission shaft (201) is fixedly connected to the output end of the variable speed motor (2), and the transmission shaft (201) is arranged vertically and extends downward to the interior of the reaction kettle body (1); A plurality of groups of self-resetting telescopic rods (202) are fixedly connected to the transmission shaft (201) at equal intervals on the circumference and are located inside the reactor body (1); The scraper (203) is fixedly connected to one end of each set of the self-resetting telescopic rods (202) away from the transmission shaft (201).

2. The structure cleaning device according to claim 1, characterized in that: An electromagnetic ring (1016) is embedded in the side wall of the reactor body (1), and the scraper (203) is a stainless steel plate with ferromagnetism.

3. A pressure reactor, using the structure cleaning device according to claim 2, characterized in that: The upper end of the reaction kettle body (1) is connected to a feed pipe (1011), and the side of the reaction kettle body (1) away from the feed pipe (1011) is respectively connected to a pressurizing pipe (101) and a reducing pipe (102). A pressure gauge (103) is installed on the reaction kettle body (1), and the detection end of the pressure gauge (103) extends into the reaction kettle body (1). The lower side of the reaction kettle body (1) is connected to a discharge pipe (104), and a sealing cover (105) is threadedly connected to the discharge pipe (104). The sealing cover (105) is provided with a through opening that is the same as that of the discharge pipe (104). The through openings of the pressurizing pipe (101), the reducing pipe (102) and the sealing cover (105) are all provided with a first solenoid valve. A heating component is provided on the body of the reaction kettle body (1).

4. The pressurized reactor according to claim 3, characterized in that: The heating assembly comprises a water inlet pipe (108), a return pipe (109) and a drain pipe (1010); a heating cavity (107) is provided in the wall of the reactor body (1); water inlets and return ports are symmetrically provided at the upper ends of both sides of the heating cavity (107); a drain port is provided at the lower end of the heating cavity (107) near the discharge pipe (104); the water inlet pipe (108), the return pipe (109) and the drain pipe (1010) are respectively connected to the water inlet, the return port and the drain port of the heating cavity (107); and a second solenoid valve is provided in the drain port.

5. The pressurized reactor according to claim 3, characterized in that: A support plate is fixedly connected to one side of the feed pipe (1011), an L-shaped plate (1012) is rotatably connected to the support plate, a T-shaped screw (1014) is threadedly connected to the side of the L-shaped plate (1012) away from the support plate, a sealing plug (1013) is fixedly connected to the lower end of the T-shaped screw (1014), the sealing plug (1013) is threadedly connected to the inner wall of the feed pipe (1011), and a circle of sealing ring (1015) is provided on the sealing plug (1013).

6. The pressurized reactor according to claim 3, characterized in that: A transparent plate (106) is fixedly connected to the reaction kettle body (1).

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