A fluidized bed reactor for silicone monomers

Abstract

This utility model relates to the field of fluidized bed reactor technology, specifically to an organosilicon monomer fluidized bed reactor, including a tank. An automatic cleaning mechanism is installed inside the tank. The automatic cleaning mechanism includes a mounting block fixedly connected to the outer wall of the tank. A servo motor is fixedly connected to the outer side of the mounting block. A transmission gear is fixedly connected to the output end of the servo motor. A transmission rod is fixedly connected to the bottom end of the driven gear, and two sets of fixing rings are rotatably connected to the outer wall of the transmission rod. A paddle block is threadedly connected to the threaded part of the transmission rod and slidably connected to the inner wall of the tank. A spiral baffle is provided on the inner side of the vibrating plate. This utility model, through the cooperation of the tank and the automatic cleaning mechanism, starts the servo motor to drive the transmission gear to rotate. The rotation of the transmission gear drives the driven gear and the transmission rod to rotate. Then, through the cooperation of the paddle block and the vibrating plate, the paddle block repeatedly moves the vibrating plate up and down, achieving vibration of the vibrating plate and the spiral baffle.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed reactor technology, specifically to an organosilicon monomer fluidized bed reactor. Background Technology

[0002] A fluidized bed reactor contains a catalyst bed. Reactive gases are blown in from below the catalyst bed, suspending the catalyst in the gas flow. The reacting gases then react under the catalysis of the catalyst, and the reacted gases are discharged from the top. The fluidized bed reactor is a key piece of equipment in organosilicon production. Inside the reactor, gaseous chloromethane reacts with solid silicon powder to produce organosilicon monomers. Chloromethane gas enters the reactor from the bottom and reacts with the silicon powder packed inside. The reaction between chloromethane and silicon powder takes place at temperatures above 350°C, generating a large amount of heat. It is crucial to remove this heat from the reactor promptly to ensure a smooth and safe reaction. Since the reaction to produce organosilicon monomers is a gas-solid phase reaction, the heat transfer efficiency within the reactor is relatively low; therefore, rapidly removing heat from the reactor is of great importance.

[0003] To improve the efficiency of organosilicon fluidized bed reactors, the following measures are typically taken: increasing the density of heat exchange tubes within the reactor to remove heat from the reactor in a timely manner; minimizing the diameter of the heat exchange tubes within the fluidized bed reactor to reduce tube spacing, prevent localized overheating of the silicon powder in the bed, and improve heat exchange efficiency; and using baffles to further improve heat exchange efficiency. However, the pores of the baffles are easily blocked by silicon powder and catalyst powder, causing them to lose their function and thus affecting practical use.

[0004] Therefore, it is necessary to invent an organosilicon monomer fluidized bed reactor to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an organosilicon monomer fluidized bed reactor that uses a tank and an automatic cleaning mechanism to clean the baffles, thereby solving the problem in the prior art where the holes of the baffles are easily blocked by silicon powder and catalyst powder, causing them to lose their function and thus affecting practical use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an organosilicon monomer fluidized bed reactor, comprising a tank, wherein an automatic cleaning mechanism is provided inside the tank, the automatic cleaning mechanism comprising a mounting block fixedly connected to the outer wall of the tank, a servo motor fixedly connected to the outer side of the mounting block, a transmission gear fixedly connected to the output end of the servo motor, a driven gear meshing with the bottom side of the transmission gear, a transmission rod fixedly connected to the bottom end of the driven gear, and two sets of fixed rings rotatably connected to the outer wall of the transmission rod, the middle part of the outer wall of the transmission rod being threaded, a paddle block being threadedly connected to the threaded part of the transmission rod and slidably connected to the inner wall of the tank, a plurality of vibrating plates being provided on the inner side of the paddle block, and a spiral baffle being provided on the inner side of the vibrating plates, the servo motor being started to drive the transmission gear and its subsequent parts to move, ultimately realizing the vibration of the spiral baffle, thereby improving working efficiency by breaking bubbles through vibration and shaking off the adhering silicon powder.

[0007] Preferably, the spiral baffle is fixedly connected to the connecting plate inside the two sets of fixed rings, and a number of support rods are fixedly connected to the inner wall of the fixed ring. A boss is fixedly connected to the inner wall of the tank, and the support rod is fixedly connected to the surface of the boss on the inner wall of the tank. The fixed ring is fixed by the support rod and the transmission rod.

[0008] Preferably, the inner wall of the fixing ring is fixedly connected to two sets of fixing blocks, and several sets of the vibrating plates are fixedly connected to the inner wall of the fixing blocks, thereby fixing the vibrating plates by the fixing blocks.

[0009] Preferably, an air outlet is fixedly connected to the top of the tank, and an air inlet is fixedly connected to the bottom of the tank, so that air can be vented and inhaled through the air outlet and the air inlet.

[0010] Preferably, a venting plate is fixedly connected to the inner wall of the bottom of the tank. The surface of the venting plate is provided with several sets of venting grooves. An installation cylinder is inserted into the inside of the venting groove. Gas enters the inside of the installation cylinder through the cooperation of the venting plate and the venting groove.

[0011] Preferably, a blocking cap is fixedly connected to the top of the mounting cylinder. The blocking cap is umbrella-shaped, and the surface of the mounting cylinder has several sets of windows with a mesh installed inside the windows. The blocking cap protects the mesh from being damaged.

[0012] Preferably, mounting bases are installed on the inner walls of both the tank body and the air outlet. A heat exchange tube is fixedly connected inside the mounting base. The heat exchange tube is serpentine in shape and is distributed around the outside of the spiral baffle. The cooperation between the mounting base and the heat exchange tube increases the effective range of the heat exchange tube, thereby improving the heat exchange efficiency.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. Through the cooperation of the tank and the automatic cleaning mechanism, the fixed ring and the spiral baffle are fixed by the cooperation of the transmission rod and the support rod. The vibrating plate is fixed by the fixed block. The servo motor is started to drive the transmission gear to rotate. The rotation of the transmission gear drives the driven gear and the transmission rod to rotate. The rotation of the transmission rod realizes the lifting and lowering of the paddle block. Then, through the cooperation of the paddle block and the vibrating plate, the paddle block repeatedly moves the vibrating plate up and down to realize the vibration of the vibrating plate and the spiral baffle. Thus, the vibration breaks the bubbles, improves the working efficiency, and shakes off the adhering silicon powder. 2. Through the cooperation of parts such as the ventilation plate and ventilation channel, the ventilation plate and ventilation channel allow air to enter the interior of the installation cylinder through the ventilation plate, and then the air blows the catalyst and silicon powder through the partition. The blocking cap prevents the catalyst from directly pressing on the partition, which would cause the partition to break. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a partially enlarged structural diagram of the automatic cleaning mechanism of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the ventilation plate structure of this utility model; Figure 6 This is a partial top view of the structure of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Tank body; 2. Automatic cleaning mechanism; 201. Mounting block; 202. Servo motor; 203. Transmission gear; 204. Driven gear; 205. Transmission rod; 206. Paddle block; 207. Fixing block; 208. Vibrating plate; 209. Spiral baffle; 210. Fixing ring; 211. Support rod; 3. Air outlet; 4. Air inlet; 5. Mounting base; 6. Heat exchange tube; 7. Ventilation plate; 8. Ventilation slot; 9. Baffle cap; 10. Mounting cylinder; 11. Partition net. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model provides, for example Figure 1-6 The illustrated organosilicon monomer fluidized bed reactor includes a tank 1. An automatic cleaning mechanism 2 is installed inside the tank 1. The automatic cleaning mechanism 2 includes a mounting block 201 fixedly connected to the outer wall of the tank 1. A servo motor 202 is fixedly connected to the outer side of the mounting block 201. A transmission gear 203 is fixedly connected to the output end of the servo motor 202. A driven gear 204 meshes with the bottom side of the transmission gear 203. A transmission rod 205 is fixedly connected to the bottom end of the driven gear 204, and two sets of fixing rings 210 are rotatably connected to the outer wall of the transmission rod 205. The middle of the outer wall of the transmission rod 205... Partially threaded, the threaded portion of the transmission rod 205 is threadedly connected to a paddle block 206, which is slidably connected to the inner wall of the tank body 1. Several sets of vibrating plates 208 are arranged inside the paddle block 206, and a spiral baffle 209 is arranged inside the vibrating plates 208. Starting the servo motor 202 drives the transmission gear 203 and its subsequent components to move, ultimately causing the spiral baffle 209 to vibrate. This vibration breaks up air bubbles, improving work efficiency while shaking off adhering silicon powder. The spiral baffle 209 is fixedly connected to a connecting plate inside two sets of fixing rings 210. Several sets of support rods 211 are fixedly connected to the inner wall of tank 0. A boss is fixedly connected to the inner wall of tank 1. The support rods 211 are fixedly connected to the surface of the boss on the inner wall of tank 1. The fixed ring 210 is fixed by the support rods 211 and the transmission rod 205. Two sets of fixing blocks 207 are fixedly connected to the inner wall of the fixed ring 210. Several sets of vibrating plates 208 are fixedly connected to the inner wall of the fixing blocks 207. The vibrating plates 208 are fixed by the fixing blocks 207. Through the cooperation between tank 1 and automatic cleaning mechanism 2, and through the cooperation between transmission rod 205 and support rods 211, the fixed ring 210 and the screw are fixed. The spiral baffle 209 is fixed, and the vibrating plate 208 is fixed by the fixing block 207. The servo motor 202 is started to drive the transmission gear 203 to rotate. The rotation of the transmission gear 203 drives the driven gear 204 and the transmission rod 205 to rotate. The rotation of the transmission rod 205 realizes the lifting and lowering of the paddle block 206. Then, through the cooperation between the paddle block 206 and the vibrating plate 208, the paddle block 206 repeatedly moves the vibrating plate 208 up and down to make the vibrating plate 208 vibrate with the spiral baffle 209. In this way, the vibration breaks the bubbles, improves the working efficiency, and shakes off the adhering silicon powder.

[0019] Refer to the instruction manual appendix Figure 1-6An air outlet 3 is fixedly connected to the top of the tank body 1, and an air inlet 4 is fixedly connected to the bottom of the tank body 1. Air is vented and inlet is achieved through the air outlet 3 and the air inlet 4. A vent plate 7 is fixedly connected to the inner side wall of the bottom of the tank body 1. Several sets of venting grooves 8 are opened on the surface of the vent plate 7. An installation cylinder 10 is inserted into the inside of the venting grooves 8. The gas enters the inside of the installation cylinder 10 through the cooperation of the vent plate 7 and the venting grooves 8. A baffle cap 9 is fixedly connected to the top of the installation cylinder 10. The baffle cap 9 is umbrella-shaped. Several sets of windows are opened on the surface of the installation cylinder 10, and a mesh 11 is installed inside the windows. The mesh 11 is protected by the baffle cap 9 to prevent the mesh 11 from being blown away. The tank body 1 and the inner wall of the air outlet 3 are both equipped with mounting bases 5. The heat exchange tubes 6 are fixedly connected inside the mounting bases 5. The heat exchange tubes 6 are snake-shaped and are distributed around the outside of the spiral baffle 209. The cooperation between the mounting bases 5 and the heat exchange tubes 6 increases the effective range of the heat exchange tubes 6, thereby improving the heat exchange efficiency. Through the cooperation of parts such as the vent plate 7 and the vent groove 8, the air enters the interior of the mounting cylinder 10 through the vent plate 7. The air then blows the catalyst and silicon powder through the partition 11. The blocking cap 9 prevents the catalyst from directly pressing on the partition 11, which would cause the partition 11 to break.

[0020] The working principle of this practical application is as follows: Refer to the instruction manual appendix Figure 1-6 When tank 1 is in operation, air is first introduced into the interior of tank 1 from the bottom of the air outlet 3. The air then passes through the ventilation plate 7 and ventilation channel 8, allowing the air to enter the mounting cylinder 10. The air then blows the catalyst and silicon powder through the partition mesh 11, and the baffle cap 9 prevents the partition mesh 11 from being damaged by the catalyst pressing directly on it. After reaching the top of tank 1, the air is further improved by the spiral baffle 209 and heat exchange tube 6, enhancing heat and mass transfer and increasing reaction efficiency. At this time, the servo motor 202 is started to drive the transmission gear 203 to rotate. The rotation of the transmission gear 203 drives the driven gear 204 and the transmission rod 205 to rotate. The bidirectional rotation of the transmission rod 205 realizes the lifting and lowering of the paddle block 206. Then, through the cooperation of the paddle block 206 and the vibrating plate 208, the paddle block 206 repeatedly moves the vibrating plate 208 up and down, realizing the vibration of the vibrating plate 208 and the spiral baffle 209. In this way, the vibration breaks the bubbles, improves the working efficiency, and shakes off the adhering silicon powder.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fluidized bed reactor for silicone monomers comprising a tank (1), characterized in that: An automatic cleaning mechanism (2) is provided inside the tank (1). The automatic cleaning mechanism (2) includes a mounting block (201) fixedly connected to the outer wall of the tank (1). A servo motor (202) is fixedly connected to the outer side of the mounting block (201). A transmission gear (203) is fixedly connected to the output end of the servo motor (202). A driven gear (204) meshes with the bottom side of the transmission gear (203). A transmission gear (204) is fixedly connected to the bottom end of the driven gear (204). The outer side wall of the moving rod (205) and the transmission rod (205) is rotatably connected to two sets of fixed rings (210). The middle part of the outer side wall of the transmission rod (205) is threaded. The threaded part of the transmission rod (205) is threadedly connected to a paddle block (206), and the paddle block (206) is slidably connected to the inner side wall of the tank (1). The inner side of the paddle block (206) is provided with several sets of vibrating plates (208), and the inner side of the vibrating plate (208) is provided with a spiral baffle (209).

2. A fluidized bed reactor for the production of organosilicon monomers according to claim 1, characterized in that: The spiral baffle (209) is fixedly connected to the connecting plate inside the two sets of fixed rings (210). The inner wall of the fixed ring (210) is fixedly connected to several sets of support rods (211). The inner wall of the tank (1) is fixedly connected to a boss. The support rod (211) is fixedly connected to the surface of the boss on the inner wall of the tank (1).

3. The organosilicon monomer fluidized bed reactor according to claim 1, characterized in that: The inner wall of the fixed ring (210) is fixedly connected to two sets of fixed blocks (207), and several sets of vibrating plates (208) are fixedly connected to the inner wall of the fixed blocks (207).

4. The organosilicon monomer fluidized bed reactor according to claim 1, characterized in that: The top of the tank (1) is fixedly connected to an air outlet (3), and the bottom of the tank (1) is fixedly connected to an air inlet (4).

5. The organosilicon monomer fluidized bed reactor according to claim 1, characterized in that: A venting plate (7) is fixedly connected to the inner wall of the bottom of the tank (1). Several sets of venting grooves (8) are opened on the surface of the venting plate (7). An installation cylinder (10) is inserted into the venting groove (8).

6. A fluidized bed reactor for the production of organosilicon monomers according to claim 5, characterized in that: The top end of the mounting cylinder (10) is fixedly connected to a blocking cap (9), which is umbrella-shaped. The surface of the mounting cylinder (10) has several sets of windows and a mesh (11) is installed inside the windows.

7. The fluidized bed reactor for silicone monomer according to claim 4, characterized in that: The inner walls of the tank (1) and the air outlet (3) are both equipped with mounting bases (5). The mounting bases (5) are fixedly connected to heat exchange tubes (6). The heat exchange tubes (6) are snake-shaped and are distributed around the outside of the spiral baffle (209).

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