A 4-bromobiphenyl crystallization kettle discharge structure

Abstract

The utility model discloses a 4 - bromine diphenyl crystallization cauldron discharge structure, including the discharge pipe, the lower extreme of discharge pipe is equipped with the installation box, the inside of installation box is equipped with the support plate, still including anti -blocking mechanism, anti -blocking mechanism: it includes support cylinder, rotating shaft, stirring rod, annular groove, annular block, U -shaped block, gyro wheel, protruding block and sliding plate, the inside of installation box is slidably connected in sliding plate, and the middle part of sliding plate is rotatably connected in rotating shaft through bearing, and the outer surface in the inside of discharge pipe is fixedly connected with the stirring rod of even distribution of rotating shaft, and the inner wall of the avoidance hole of discharge pipe downside is equipped with the support cylinder between the outer surface of rotating shaft, and the upper end of support plate is equipped with annular groove, and this 4 - bromine diphenyl crystallization cauldron discharge structure makes the stirring rod of mechanical drive to be able to stir the different height in discharge pipe, avoids the block point of crystallization agglomeration formation, and lets the material keep the flowing state simultaneously, prevents the local accumulation.

Description

Technical Field

[0001] This utility model relates to the field of 4-bromobiphenyl crystallization processing technology, specifically to a 4-bromobiphenyl crystallization reactor discharge structure. Background Technology

[0002] 4-Bromobiphenyl, also known as p-bromobiphenyl, is an important organic compound and industrial chemical. It consists of a biphenyl group and a bromine atom, with the bromine atom attached to the para-position of one of the benzene rings in the biphenyl molecule. This structure makes it a useful intermediate in many chemical reactions. The core value of 4-bromobiphenyl lies in its role as a key organic synthetic intermediate for constructing more complex molecular structures, as a starting material or intermediate for the synthesis of certain drugs, and in the synthesis of organic light-emitting diodes, liquid crystal materials, polymer monomers, and other functional materials. Its biphenyl structure provides good planarity and a conjugated system, while the bromine atom provides a handle for further modification. It also serves as an intermediate in the synthesis of certain herbicides or insecticides. The 4-bromobiphenyl crystallizer discharge structure refers to the method for smoothly, efficiently, and controllably transferring the crystallized 4-bromobiphenyl slurry from the crystallizer to the next process. The existing authorization announcement number CN217939208U discloses a crystallization reactor anti-blocking discharge device, which includes a crystallization reactor and a discharge valve. The lower end of the crystallization reactor is connected to a receiving pipe, and the side of the receiving pipe is connected to a discharge pipe. The discharge valve is installed on the discharge pipe. A vertical rod extending into the crystallization reactor is installed through the discharge pipe. A frustum block is connected to the top of the vertical rod. A scraper is rotatably connected to the frustum block and is horizontally arranged under the action of a torsion spring. The lower end of the receiving pipe is provided with a drive component that enables the vertical rod to move up and down and rotate. This crystallization reactor anti-blocking discharge device adjusts the position and state of the scraper by moving the vertical rod up and down, so that it successively comes into contact with the inner wall of the lower end of the crystallization reactor and the inner wall of the crystallization reactor discharge port. Then, through rotation, it can effectively clean the crystal material in the inner wall of the lower end of the crystallization reactor, the crystallization reactor discharge port, and the receiving pipe, which can effectively solve the problem of crystallization reactor discharge blockage. The existing discharge structure of this type of 4-bromobiphenyl crystallizer has the following problems: When 4-bromobiphenyl crystallizes and discharges, the pneumatic telescopic device relies on a stable air source. If the air source pressure fluctuates, the reliability, accuracy and adaptability will decrease, which will affect the unblocking effect and long-term stability of the entire anti-blocking discharge device. Therefore, we propose a discharge structure for 4-bromobiphenyl crystallizer. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a discharge structure for a 4-bromobiphenyl crystallizer. When 4-bromobiphenyl crystallizes and discharges, the stirring rod can stir different heights in the discharge pipe through mechanical transmission, so as to avoid crystal agglomeration and blockage. At the same time, the material is kept in a flowing state to prevent local accumulation, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a discharge structure for a 4-bromobiphenyl crystallization reactor, including a discharge pipe, a mounting box at the lower end of the discharge pipe, a support plate inside the mounting box, and an anti-blocking mechanism; Anti-clogging mechanism: It includes a support cylinder, a rotating shaft, a stirring rod, an annular groove, an annular block, a U-shaped block, rollers, protrusions, and a sliding plate. The sliding plate is slidably connected to the inside of the mounting box. The rotating shaft is rotatably connected to the middle of the sliding plate through a bearing. The outer surface of the rotating shaft inside the discharge pipe is fixedly connected to evenly distributed stirring rods. A support cylinder is provided between the inner wall of the clearance hole on the lower side of the discharge pipe and the outer surface of the rotating shaft. An annular groove is provided at the upper end of the support plate. An annular block is rotatably connected inside the annular groove. The upper end of the annular block is rotatably connected to evenly distributed rollers through a U-shaped block. Evenly distributed protrusions are provided at the lower end of the sliding plate. The outer surfaces of the rollers are slidably connected to the outer surfaces of the vertically adjacent protrusions. When 4-bromobiphenyl crystallizes and discharges, the stirring rod can stir different heights in the discharge pipe through mechanical transmission, avoiding crystal agglomeration and blockage, while keeping the material in a flowing state to prevent local accumulation.

[0005] Furthermore, a control switch assembly is provided on the outside of the discharge pipe. The input end of the control switch assembly is electrically connected to an external power source to provide electrical connections for various electrical components.

[0006] Furthermore, the anti-clogging mechanism also includes telescopic rods and springs. The top wall of the mounting box is fixedly connected to the upper end of the sliding plate with evenly distributed telescopic rods, and springs are respectively sleeved on the outside of the telescopic rods to facilitate rebound.

[0007] Furthermore, the anti-clogging mechanism also includes a worm wheel and a worm. The worm wheel is fixedly sleeved on the outer surface of the annular block, and the worm is rotatably connected between the front and rear inner walls of the mounting box. The worm wheel and the worm are meshed together to provide a transmission connection.

[0008] Furthermore, the anti-clogging mechanism also includes a motor, which is located at the front end of the mounting box. The rear end of the output shaft of the motor is fixedly connected to the front end of the worm gear, and the input end of the motor is electrically connected to the output end of the control switch group to provide rotation drive.

[0009] Furthermore, the anti-clogging mechanism also includes a cylindrical gear, a rotating shaft, and a gear. The cylindrical gear is fixedly sleeved on the lower side of the outer surface of the rotating shaft. The rotating shaft is rotatably connected between the bottom wall of the mounting box and the top wall of the support plate. The gear is fixedly sleeved in the middle of the outer surface of the rotating shaft. The cylindrical gear meshes with the gear to provide a transmission connection.

[0010] Furthermore, the anti-clogging mechanism also includes a second motor, which is located at the lower end of the mounting box. The upper end of the output shaft of the second motor is fixedly connected to the lower end of the rotating shaft, and the input end of the second motor is electrically connected to the output end of the control switch group to provide rotation drive.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The discharge structure of this 4-bromobiphenyl crystallizer has the following advantages: Driven by motor one, the annular block rotates within the annular groove via a worm gear and meshing worm wheel. This causes the U-shaped block to drive the roller to slide into contact with the protrusion. When the roller contacts the protrusion, the sliding plate is pushed upwards. As the roller rolls away from the protrusion, the sliding plate falls under the action of the telescopic rod and spring, allowing the stirring rod to scrape different heights of the inner wall of the discharge pipe, preventing long-term adhesion and blockage. Then, driven by motor two, the rotating shaft, gear, and meshing cylindrical gear drive the rotating shaft to rotate, which in turn causes the stirring rod to impact and break up large 4-bromobiphenyl crystals in the discharge pipe, preventing crystal agglomeration and blockage. During the discharge of 4-bromobiphenyl crystals, mechanical transmission allows the stirring rod to stir different heights within the discharge pipe, preventing crystal agglomeration and blockage, while keeping the material in a flowing state to prevent local accumulation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the 45-degree sectional view of the present invention. Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is an enlarged structural diagram of point A in this utility model; Figure 5 This is an enlarged structural diagram of section B of the present invention.

[0013] In the diagram: 1. Discharge pipe, 2. Mounting box, 3. Anti-clogging mechanism, 301. Support cylinder, 302. Rotating shaft, 303. Stirring rod, 304. Annular groove, 305. Annular block, 306. U-shaped block, 307. Roller, 308. Protrusion, 309. Sliding plate, 310. Telescopic rod, 311. Spring, 312. Worm gear, 313. Worm, 314. Motor I, 315. Cylindrical gear, 316. Rotating shaft, 317. Gear, 318. Motor II, 4. Support plate, 5. Control switch assembly. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 This embodiment provides a technical solution: a discharge structure for a 4-bromobiphenyl crystallizer, including a discharge pipe 1, an installation box 2 at the lower end of the discharge pipe 1 (a maintenance door can be opened on the outer surface of the discharge pipe 1 for easy maintenance and replacement in the future), a support plate 4 inside the installation box 2, and an anti-blocking mechanism 3. The operator will install the discharge pipe 1 at the lower end of the discharge port with bolts. The discharge pipe 1 is equipped with a control switch group 5. The input end of the control switch group 5 is electrically connected to an external power supply to ensure the wiring connection of each electrical appliance. Anti-clogging mechanism 3: It includes a support cylinder 301, a rotating shaft 302, a stirring rod 303, an annular groove 304, an annular block 305, a U-shaped block 306, a roller 307, a protrusion 308, and a sliding plate 309. The sliding plate 309 is slidably connected to the inside of the mounting box 2. The rotating shaft 302 is rotatably connected to the middle of the sliding plate 309 through a bearing. The rotating shaft 302 is fixedly connected to the outer surface of the discharge pipe 1 with evenly distributed stirring rods 303. The support cylinder 301 is provided between the inner wall of the clearance hole on the lower side of the discharge pipe 1 and the outer surface of the rotating shaft 302. The upper end of the support plate 4 is provided with an annular groove 304. The annular block 305 is rotatably connected inside the annular groove 304. The upper end of the annular block 305 is connected to the roller 307. The U-shaped block 306 is rotatably connected to evenly distributed rollers 307. The lower end of the sliding plate 309 is provided with evenly distributed protrusions 308. The outer surfaces of the rollers 307 are slidably connected to the outer surfaces of the vertically adjacent protrusions 308. (The support cylinder 301 is fixedly connected to the clearance hole on the lower side of the discharge pipe 1. The rotating shaft 302 extends upward through the support cylinder 301. A circular plate is fixedly fitted on the middle of the outer surface of the rotating shaft 302. A sliding groove is opened on the top wall of the circular plate. A circular plate is rotatably connected inside the sliding groove. Evenly distributed telescopic columns are fixedly connected between the top wall of the circular plate and the upper end of the support cylinder 301. A rubber protective sleeve is fixedly fitted between the edge of the circular plate and the edge of the upper end of the support cylinder 301.) To prevent leakage at the connection between the rotating shaft 302 and the support cylinder 301, the maintenance sealing plate bolted to the outside of the discharge pipe 1 can be removed, allowing for the replacement of the rubber protective sleeve. This prevents wear and leakage caused by long-term use. With the support cylinder 301 fixed, the circular plate connected by the telescopic column remains stationary while the rotating shaft 302 rotates, preventing the rubber protective sleeve from twisting. When the height of the rotating shaft 302 changes within the support cylinder 301, the telescopic column adapts to the changes in height, ensuring the rubber protective sleeve stretches and contracts due to its elasticity. The rubber protective sleeve effectively protects the connection between the rotating shaft 302 and the support cylinder 301 from leakage. This, in turn, drives the U-shaped block 3. The roller 307 inside 06 moves synchronously in a circular motion. The roller 307 slides in contact with the protrusion 308 at the lower end of the sliding plate 309. When the roller 307 rolls over the inclined surface of the protrusion 308, it will push the sliding plate 309 upward, so that the rotating shaft 302 has the ability to rotate. This drives the stirring rod 303 located inside the discharge pipe 1 to rotate at high speed. The rotating stirring rod 303 can directly impact and break the large 4-bromobiphenyl crystals in the discharge pipe, avoiding the formation of blockages due to crystal agglomeration. At the same time, through the stirring action, the material is kept in a flowing state to prevent local accumulation. A support cylinder 301 is set at the clearance hole between the discharge pipe 1 and the rotating shaft 302, which does not affect the rotation of the rotating shaft 302 and prevents 4-bromobiphenyl crystals from leaking out of the gap. The anti-clogging mechanism 3 also includes telescopic rods 310 and springs 311. Telescopic rods 310 are evenly distributed and fixedly connected between the top wall of the mounting box 2 and the upper end of the sliding plate 309. Springs 311 are fitted onto the outside of each telescopic rod 310. (A sealing plate is bolted to the left end of the mounting box 2. The telescopic rods 310 are threaded between the top wall of the mounting box 2 and the upper end of the sliding plate 309.) Springs 311 will lose elasticity over time and require periodic replacement. When replacing springs 311, first unscrew the bolts, then remove the sealing plate, and then unscrew the telescopic rods 310. Next, remove the spring 311, install and replace the spring 311, and after installation and replacement, screw on the telescopic rod 310, and then screw on the bolt to install the sealing plate. When the roller 307 rolls away from the protrusion 308, the telescopic rod 310 and the spring 311 between the top wall of the mounting box 2 and the sliding plate 309 will elastically reset, pulling the sliding plate 309 downward. The upward and downward cycle of the sliding plate 309 will drive the rotating shaft 302 and the stirring rod 303 connected to it to move up and down as a whole, so that the stirring rod 303 can scrape to different heights on the inner wall of the discharge pipe 1, remove the crystals attached to the pipe wall, and avoid long-term adhesion to form a blockage layer. The anti-blocking mechanism 3 also includes a worm gear 312 and a worm 313. The worm gear 312 is fixedly sleeved on the outer surface of the annular block 305, and the worm 313 is rotatably connected between the front and rear inner walls of the mounting box 2. The worm gear 312 and the worm 313 are meshed together. The anti-blocking mechanism 3 also includes a motor 314. The motor 314 is located at the front end of the mounting box 2. The rear end of the output shaft of the motor 314 is fixedly connected to the front end of the worm 313. The input end of the motor 314 is electrically connected to the output end of the control switch group 5. (Both the worm gear 312 and the worm 313 are located inside the mounting box 2 to avoid dust accumulation affecting the transmission effect.) When material needs to be discharged, the output shaft of the motor 314 drives the worm 313 to rotate by adjusting the control switch group 5. The worm 313 meshes with the worm gear 312 on the outer surface of the annular block 305, transmitting power to the annular block 305. The annular block 305 rotates in the annular groove 304. The anti-clogging mechanism 3 also includes a cylindrical gear 315, a rotating shaft 316, and a gear 317. The cylindrical gear 315 is fixedly sleeved on the lower side of the outer surface of the rotating shaft 302. The rotating shaft 316 is rotatably connected between the bottom wall of the mounting box 2 and the top wall of the support plate 4. The gear 317 is fixedly sleeved in the middle of the outer surface of the rotating shaft 316. The cylindrical gear 315 and the gear 317 mesh with each other. (Assuming the height of the cylindrical gear 315 is A, the height of the gear 317 is B, and the height of the protrusion 308 is C, A is greater than (B+C)*2, ensuring proper meshing between the cylindrical gear 315 and the gear 317.) While engaging, the gears slide to prevent the cylindrical gear 315 from disengaging from the gear 317. The anti-blocking mechanism 3 also includes a second motor 318, which is located at the lower end of the mounting box 2. The upper end of the output shaft of the second motor 318 is fixedly connected to the lower end of the rotating shaft 316. The input end of the second motor 318 is electrically connected to the output end of the control switch group 5. When the second motor 318 operates, its output shaft drives the rotating shaft 316 to rotate. The gear 317 on the rotating shaft 316 meshes with the cylindrical gear 315 on the lower side of the rotating shaft 302, transmitting power to the rotating shaft 302.

[0016] The working principle of the discharge structure of the 4-bromobiphenyl crystallizer provided by this utility model is as follows: The operator installs the discharge pipe 1 at the lower end of the discharge port with bolts. Then, when discharge is required, the output shaft of the motor 314 drives the worm gear 313 to rotate by adjusting the control switch group 5. The worm gear 313 meshes with the worm wheel 312 on the outer surface of the annular block 305, transmitting power to the annular block 305. The annular block 305 rotates in the annular groove 304, thereby driving the U-shaped block 306 inside the groove. The roller 307 moves in a synchronous circular motion and slides in contact with the protrusion 308 at the lower end of the sliding plate 309. When the roller 307 rolls over the inclined surface of the protrusion 308, it will push the sliding plate 309 upward. When the roller 307 rolls away from the protrusion 308, the telescopic rod 310 and spring 311 between the top wall of the mounting box 2 and the sliding plate 309 will return to their original positions due to elasticity, pulling the sliding plate 309 downward. The upward and downward cycle of the sliding plate 309 drives the rotating shaft 302 and the stirring rod that are rotatably connected to it. The stirring rod 303 moves up and down in a reciprocating motion, allowing it to scrape the inner wall of the discharge pipe 1 at different heights (the gear 317 and the cylindrical gear 315 will slide relative to each other without disengaging), removing crystals adhering to the pipe wall and preventing long-term adhesion from forming a blockage layer. At the same time, the second motor 318 operates, and the output shaft of the second motor 318 drives the rotating shaft 316 to rotate. The gear 317 on the rotating shaft 316 meshes with the cylindrical gear 315 on the lower side of the rotating shaft 302, transmitting power to the rotating shaft 302, enabling it to rotate and drive the stirring rod 303 located inside the discharge pipe 1 to rotate at high speed. The rotating stirring rod 303 can directly impact and break up large 4-bromobiphenyl crystals in the discharge pipe, preventing crystals from agglomerating and forming blockages. At the same time, the stirring action keeps the material in a flowing state, preventing local accumulation. A support cylinder 301 is installed at the clearance hole between the discharge pipe 1 and the rotating shaft 302, which does not affect the rotation of the rotating shaft 302 and prevents 4-bromobiphenyl crystals from leaking out of the gap.

[0017] It is worth noting that the motor 314 and motor 318 disclosed in the above embodiments can both be YJ61. The control switch group 5 is provided with a switch button that corresponds one-to-one with motor 314 and motor 318 and is used to control their switching operation.

[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A discharge structure for a 4-bromobiphenyl crystallization reactor, comprising a discharge pipe (1), wherein a mounting box (2) is provided at the lower end of the discharge pipe (1), and a support plate (4) is provided on the lower side inside the mounting box (2), characterized in that: It also includes an anti-clogging mechanism (3); Anti-clogging mechanism (3): It includes a support cylinder (301), a rotating shaft (302), a stirring rod (303), an annular groove (304), an annular block (305), a U-shaped block (306), a roller (307), a protrusion (308), and a sliding plate (309). The sliding plate (309) is slidably connected to the inside of the mounting box (2). The rotating shaft (302) is rotatably connected to the middle of the sliding plate (309) through a bearing. The rotating shaft (302) is located on the outer surface of the discharge pipe (1) with uniformly distributed stirring rods (303). A support cylinder (301) is provided between the inner wall of the clearance hole on the lower side of the discharge pipe (1) and the outer surface of the rotating shaft (302). An annular groove (304) is provided at the upper end of the support plate (4). An annular block (305) is rotatably connected inside the annular groove (304). A uniformly distributed roller (307) is rotatably connected at the upper end of the annular block (305) through a U-shaped block (306). A uniformly distributed protrusion (308) is provided at the lower end of the sliding plate (309). The outer surface of the roller (307) is slidably connected to the outer surface of the vertically adjacent protrusion (308).

2. The discharge structure of a 4-bromobiphenyl crystallization reactor according to claim 1, characterized in that: The discharge pipe (1) is provided with a control switch group (5) on the outside, and the input end of the control switch group (5) is electrically connected to an external power source.

3. The discharge structure of a 4-bromobiphenyl crystallization reactor according to claim 2, characterized in that: The anti-blocking mechanism (3) also includes telescopic rods (310) and springs (311). The top wall of the mounting box (2) and the upper end of the sliding plate (309) are fixedly connected with evenly distributed telescopic rods (310), and springs (311) are respectively sleeved on the outside of the telescopic rods (310).

4. The discharge structure of a 4-bromobiphenyl crystallization reactor according to claim 3, characterized in that: The anti-clogging mechanism (3) also includes a worm wheel (312) and a worm (313). The worm wheel (312) is fixedly sleeved on the outer surface of the annular block (305), and the worm (313) is rotatably connected between the front and rear inner walls of the mounting box (2). The worm wheel (312) and the worm (313) are meshed together.

5. The discharge structure of a 4-bromobiphenyl crystallization reactor according to claim 4, characterized in that: The anti-blocking mechanism (3) also includes a motor (314), which is located at the front end of the mounting box (2). The rear end of the output shaft of the motor (314) is fixedly connected to the front end of the worm (313), and the input end of the motor (314) is electrically connected to the output end of the control switch group (5).

6. The discharge structure of a 4-bromobiphenyl crystallization reactor according to claim 5, characterized in that: The anti-blocking mechanism (3) also includes a cylindrical gear (315), a rotating shaft (316) and a gear (317). The cylindrical gear (315) is fixedly sleeved on the lower side of the outer surface of the rotating shaft (302). The rotating shaft (316) is rotatably connected between the bottom wall of the mounting box (2) and the top wall of the support plate (4). The gear (317) is fixedly sleeved in the middle of the outer surface of the rotating shaft (316). The cylindrical gear (315) and the gear (317) are meshed together.

7. The discharge structure of a 4-bromobiphenyl crystallization reactor according to claim 6, characterized in that: The anti-blocking mechanism (3) also includes a second motor (318), which is located at the lower end of the mounting box (2). The upper end of the output shaft of the second motor (318) is fixedly connected to the lower end of the rotating shaft (316), and the input end of the second motor (318) is electrically connected to the output end of the control switch group (5).

Images