Closed feeding device

Abstract

The utility model discloses a kind of closed feeding devices, it is related to chemical feeding equipment technical field.The utility model includes pipe fitting, the bottom of pipe fitting inner chamber is provided with feed pipe, the surface of feed pipe is provided with fixed assembly, the inner chamber of pipe fitting is provided with filter assembly.The utility model fixed assembly is driven by the engagement action of buckle block and hanging ring of rotating plate, the quick connection and locking between feeding device and the feed pipe of reaction kettle are realized, this pure mechanical structure is easy to operate and saves labor, and the efficiency of disassembly and maintenance is significantly improved;Meanwhile, when pipe fitting moves down, it will drive pressing plate extrude sealing gasket, utilize the close adhesion of pressing plate and sealing gasket, ensure the sealing reliability of connecting interface, effectively prevent the escape of toxic and harmful material in feeding process, ensure production safety;The whole device structure is compact, few and firm durable components, without the aid of external tools can complete all operation, with good practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical feeding equipment, and in particular relates to a closed feeding device. Background Technology

[0002] Cyanide chloride, a commonly used intermediate in chemical production, is prone to dust formation and must be kept out of direct contact with operators to prevent dust from spreading into the production environment. In addition, the material transfer process must be kept airtight before entering the reaction system to avoid safety risks caused by excessive contact between the material and air. Furthermore, it must be ensured that the cyanide chloride material entering the reactor is free of excess impurities to avoid affecting the stability of subsequent synthesis reactions and the quality of the final product.

[0003] Chinese patent application CN222592848U discloses a closed feeding device for pharmaceuticals, comprising a main support frame and a base plate. The base plate is mounted on the top of the main support frame, a rotating plate is positioned above the base plate, and a secondary support frame is mounted on the top of the rotating plate. A movable frame is slidably mounted on the side wall of the secondary support frame, and a feeding hopper is mounted on the side wall of the movable frame. Four sets of equally spaced feeding hoppers are installed inside the main support frame. Two sets of support plates are mounted on the inner wall of each feeding hopper, and air extraction ports are installed on the outer wall of each feeding hopper. Two sets of slide rails are mounted on one side wall of each support plate, and sliders are slidably mounted on the surface of each slide rail. Racks are mounted on the side walls of each slider. This invention not only achieves convenient reciprocating motion for dust extraction and convenient circular rotation for sequential feeding of pharmaceutical raw materials, facilitating closed negative pressure feeding of pharmaceutical raw materials, but also improves the flexibility of feeding.

[0004] While this patented device achieves dust suppression during the feeding process by setting up a closed feeding tank, feeding cylinder, and negative pressure suction mechanism, effectively avoiding the impact of dust diffusion on the environment and operators, it lacks a dedicated connection component for the reactor. This makes it unsuitable for the precise feeding requirements of raw materials into the reactor in chemical production. Existing technologies generally employ a fixed feeding chamber and reactor rigidly connected by flanges and bolts, creating a closed structure. While this connection method can ensure the airtightness of the feeding process to a certain extent, it has significant limitations in actual production: when it is necessary to clean residual materials in the feeding chamber or repair internal filters, conveying components, etc., a significant amount of time and manpower must be spent disassembling numerous bolts one by one to separate the chamber from the reactor. The existing feeding devices are cumbersome to operate, which seriously affects production efficiency. More importantly, during disassembly and subsequent reinstallation, the connection structure itself lacks effective continuous sealing capabilities. It is very easy for human installation errors and stress relaxation of fasteners after long-term use to cause sealing failure at the connection interface. This can lead to the accidental release of toxic materials such as cyanuric chloride vapor into the working environment, posing a potential threat to the health of operators and also causing environmental safety risks. In addition, the filter plates of existing feeding devices are mostly fixedly connected. When the filter plates need to be replaced due to material impurities or damaged due to long-term use, it is often necessary to disassemble multiple parts of the device, which consumes a lot of time and further reduces the continuity and convenience of production.

[0005] To address these issues, we provide a closed feeding device. Utility Model Content

[0006] The purpose of this invention is to provide a closed feeding device that solves the problems of overly complicated connection between the closed feeding device and the reactor and the difficulty in disassembling the filter plate in the prior art by using a combination of a fixing component and a filtering component.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a closed feeding device, comprising a pipe fitting. A feed pipe is located at the bottom of the inner cavity of the pipe fitting, and a fixing assembly is located on the surface of the feed pipe. A filter assembly is located within the inner cavity of the pipe fitting. The fixing assembly includes a pressure plate, the inner side of which is fixedly connected to the pipe fitting. A sealing gasket is located at the top of the feed pipe, and the top of the sealing gasket is fixedly connected to the pressure plate. Rotating plates are located on both sides of the pressure plate, the tops of which are rotatably connected to the pipe fitting. A fastener is fixedly connected to one side of the bottom of the rotating plate, and a hanging ring is engaged with the inner side of the fastener. The other side of the hanging ring is connected to… The feed pipe is fixedly connected, and there are two rotating plates symmetrically distributed on both sides of the bottom of the pipe. This ensures that the force is evenly distributed on both sides when the device is connected to the feed pipe, avoiding tilting of the pressure plate due to uneven force distribution on one side. It also ensures that the sealing gasket is fully in contact with the top end face of the feed pipe. Both sides of the buckle are inclined, but one side has a partially flat bottom. This guides the buckle to engage with the hanging ring when the rotating plate is rotated, reducing the difficulty of operation. The flat structure at the bottom of one side increases the contact area between the buckle and the hanging ring, forming a stable support and positioning, effectively preventing relative slippage due to vibration after engagement.

[0009] The present invention is further configured such that the filter assembly includes a filter plate, one side of the filter plate is slidably connected to a pipe, the other side of the pipe is slidably connected to a fixing block, the inner cavity of the fixing block is fixedly connected to a fixing rod, the surface of the fixing rod is slidably connected to a locking block, both sides of the locking block are slidably connected to the fixing block, the rear side of the locking block is fixedly connected to a spring, and the other side of the spring is fixedly connected to the fixing block. The fixing rod not only provides precise guidance for the locking block, but also prevents displacement or twisting of the spring during extension and contraction.

[0010] The present invention is further configured such that a sealing cap is hinged to the top of the pipe fitting, and a feeding pipe is fixedly connected to the top of the sealing cap. The sealing cap allows the staff to replace or repair the filter plate, and the feeding pipe provides a directional channel for material feeding, which can be directly connected to external material sources for precise feeding, reducing the contact area between the material and the air during the feeding process and reducing the risk of dust flying.

[0011] The present invention is further provided with handles on both sides of the bottom of the pipe fitting. One side of the handle is fixedly connected to the rotating plate. The handles allow the operator to rotate the rotating plate more easily, improving the convenience of the device.

[0012] The present invention is further configured such that a guide groove is provided in the inner cavity of the pipe fitting, and a guide block is slidably connected to the inner cavity of the guide groove. One side of the guide block is fixedly connected to the filter plate. The setting of the guide block and the guide groove can provide precise guidance when the filter plate is installed, and avoid positional deviation that would prevent it from being connected to the locking block.

[0013] The present invention is further configured such that a push plate is fixedly connected to the top of the card block, both sides of the push plate are slidably connected to the fixed block, and a detachable sealing shell is provided on the top of the push plate to prevent material from entering the inner cavity of the fixed block during feeding.

[0014] The present invention is further configured such that a sliding groove is provided in the inner cavity of the fixing block, and the inner cavity of the sliding groove is slidably connected to the card block. The setting of the sliding groove can limit the range of motion of the card block and prevent the card block from detaching from the inner cavity of the fixing block.

[0015] The present invention has the following beneficial effects.

[0016] 1. The fixing component of this utility model achieves quick connection and locking between the feeding device and the reactor feed pipe by rotating the plate to drive the locking action of the buckle and the hanging ring. This purely mechanical structure is simple and labor-saving to operate, significantly improving the efficiency of disassembly and maintenance. At the same time, when the pipe moves down, it will drive the pressure plate to squeeze the sealing gasket. The tight fit between the pressure plate and the sealing gasket ensures the sealing reliability of the connection interface, effectively preventing the leakage of toxic and harmful materials during the feeding process and ensuring production safety. The entire device has a compact structure, few parts, and is sturdy and durable. All operations can be completed without the aid of external tools, making it highly practical.

[0017] 2. The filter assembly of this utility model achieves quick disassembly and reliable fixation of the filter structure by slidingly connecting the filter plate and cooperating with the fixing block with spring reset block, which facilitates cleaning of trapped materials or replacement of the filter plate; the spring-driven block can automatically pop out and lock after sliding into place, ensuring the stability of the filter plate in the working state. At the same time, this purely mechanical structure can be operated without tools, making maintenance simple and effectively improving the practicality and maintenance efficiency of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional view of a closed feeding device.

[0020] Figure 2 This is a three-dimensional view of a fixed component in a closed feeding device.

[0021] Figure 3 This is an enlarged view of point A in a closed feeding device.

[0022] Figure 4 This is a three-dimensional view of a filter component in a closed feeding device.

[0023] Figure 5 This is an enlarged view of point B in a closed feeding device.

[0024] In the attached diagram: 1. Pipe fitting; 2. Feed pipe; 3. Fixing assembly; 301. Pressure plate; 302. Sealing gasket; 303. Rotating plate; 304. Buckle block; 305. Hanging ring; 4. Filter assembly; 401. Filter plate; 402. Fixing block; 403. Fixing rod; 404. Clamping block; 405. Spring; 5. Sealing cover; 6. Feed pipe; 7. Handle; 8. Guide groove; 9. Guide block; 10. Push plate; 11. Slide groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1-5 This utility model is a closed feeding device, including a pipe fitting 1. A feed pipe 2 is provided at the bottom of the inner cavity of the pipe fitting 1. A fixing component 3 is provided on the surface of the feed pipe 2. A filter component 4 is provided in the inner cavity of the pipe fitting 1. The fixing component 3 includes a pressure plate 301. The inner side of the pressure plate 301 is fixedly connected to the pipe fitting 1. A sealing gasket 302 is provided at the top of the feed pipe 2. The top of the sealing gasket 302 is fixedly connected to the pressure plate 301. Rotating plates 303 are provided on both sides of the pressure plate 301. The top of the rotating plates 303 is rotatably connected to the pipe fitting 1. A buckle 304 is fixedly connected to one side of the bottom of the rotating plate 303. A hanging ring 305 is engaged and connected to the inner side of the buckle 304. The other side of the hanging ring 305 is fixedly connected to the feed pipe 2.

[0027] Specifically: There are two rotating plates 303, which are symmetrically distributed on both sides of the bottom of the pipe fitting 1. This ensures that the force is evenly distributed on both sides when the device is connected to the feed pipe 2, and avoids the pressure plate 301 tilting due to the force deviation on one side. This ensures that the sealing gasket 302 is fully in contact with the top end face of the feed pipe 2. Both sides of the buckle 304 are inclined, but one side has a part of the bottom flat, which guides the buckle 304 to engage with the hanging ring 305 when the rotating plate 303 is rotated, reducing the difficulty of operation. The flat structure at the bottom of one side can increase the contact area between the buckle 304 and the hanging ring 305, forming a stable support and positioning, and effectively preventing relative sliding due to vibration after engagement.

[0028] Please see Figure 1-5The filter assembly 4 includes a filter plate 401. One side of the filter plate 401 is slidably connected to the pipe fitting 1, and a fixing block 402 is slidably connected to the other side of the pipe fitting 1. A fixing rod 403 is fixedly connected to the inner cavity of the fixing block 402, and a locking block 404 is slidably connected to the surface of the fixing rod 403. Both sides of the locking block 404 are slidably connected to the fixing block 402. A spring 405 is fixedly connected to the rear side of the locking block 404, and the other side of the spring 405 is fixedly connected to the fixing block 402. A sealing cap 5 is hinged to the top of the pipe fitting 1 for sealing. The top of the cover 5 is fixedly connected to the feed pipe 6. Both sides of the bottom of the pipe fitting 1 are provided with handles 7. One side of the handle 7 is fixedly connected to the rotating plate 303. The inner cavity of the pipe fitting 1 is provided with a guide groove 8. The inner cavity of the guide groove 8 is slidably connected to a guide block 9. One side of the guide block 9 is fixedly connected to the filter plate 401. The top of the locking block 404 is fixedly connected to a push plate 10. Both sides of the push plate 10 are slidably connected to the fixing block 402. The inner cavity of the fixing block 402 is provided with a sliding groove 11. The inner cavity of the sliding groove 11 is slidably connected to the locking block 404.

[0029] Specifically: the fixed rod 403 not only provides precise guidance for the locking block 404, but also prevents the spring 405 from shifting or twisting during extension and retraction. The sealing cover 5 allows workers to replace or repair the filter plate 401. The feeding pipe 6 provides a directional channel for material feeding, allowing direct connection to external material sources for precise feeding, reducing the contact area between the material and air during feeding, and lowering the risk of dust flying. The handle 7 allows workers to more easily rotate the rotating plate 303, improving the convenience of the device. The guide block 9 and guide groove 8 provide precise guidance during filter plate 401 installation, preventing positional deviations that could prevent connection with the locking block 404. The push plate 10 has a removable sealing shell on top to prevent material from entering the inner cavity of the fixed block 402 during feeding. The sliding groove 11 restricts the range of motion of the locking block 404, preventing the locking block 404 from detaching from the inner cavity of the fixed block 402.

[0030] The working principle of this utility model is as follows: When replacing the filter plate 401, open the sealing cover 5, and then push the push plate 10. The push plate 10 drives the locking block 404 to move along the fixed rod 403 and compress the spring 405. At the same time, pull the filter plate 401 upward to make it disengage from the fixed block 402, and the disassembly can be completed. The bottom of the feed pipe 2 is connected to the reactor. During installation, insert the bottom discharge pipe of the pipe fitting 1 into the inner cavity of the feed pipe 2. When the sealing gasket 302 contacts the feed pipe 2, rotate the rotating plate 303 by the handle 7. The rotating plate 303 drives the inclined surface of the buckle block 304 to contact the hanging ring 305. With rotation, the buckle block 304 will be squeezed and moved down. The buckle block 304 then drives the pipe fitting 1 to move down through the rotating plate 303. The pipe fitting 1 squeezes the sealing gasket 302 through the pressure plate 301 to make it fit tightly with the top of the feed pipe 2. When the buckle block 304 and the hanging ring 305 are engaged, the sealing gasket 302 will rebound a short distance, and the installation can be completed.

[0031] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A closed feeding device, comprising a pipe fitting (1), characterized in that: The inner cavity of the pipe fitting (1) is provided with a feed pipe (2), the surface of the feed pipe (2) is provided with a fixing component (3), and the inner cavity of the pipe fitting (1) is provided with a filter component (4). The fixing component (3) includes a pressure plate (301), the inner side of which is fixedly connected to the pipe fitting (1), a sealing gasket (302) is provided on the top of the feed pipe (2), the top of which is fixedly connected to the pressure plate (301), a rotating plate (303) is provided on both sides of the pressure plate (301), the top of which is rotatably connected to the pipe fitting (1), a buckle (304) is fixedly connected to one side of the bottom of the rotating plate (303), a hanging ring (305) is engaged and connected to the inner side of the buckle (304), and the other side of the hanging ring (305) is fixedly connected to the feed pipe (2).

2. The closed feeding device according to claim 1, characterized in that: The filter assembly (4) includes a filter plate (401), one side of which is slidably connected to the pipe fitting (1), and the other side of the pipe fitting (1) is slidably connected to a fixing block (402). A fixing rod (403) is fixedly connected to the inner cavity of the fixing block (402), and a locking block (404) is slidably connected to the surface of the fixing rod (403). Both sides of the locking block (404) are slidably connected to the fixing block (402), and a spring (405) is fixedly connected to the rear side of the locking block (404). The other side of the spring (405) is fixedly connected to the fixing block (402).

3. The closed feeding device according to claim 1, characterized in that: The top of the pipe fitting (1) is hinged with a sealing cap (5), and the top of the sealing cap (5) is fixedly connected with a feed pipe (6).

4. The closed feeding device according to claim 1, characterized in that: The pipe fitting (1) is provided with handles (7) on both sides of the bottom, and one side of the handle (7) is fixedly connected to the rotating plate (303).

5. A closed feeding device according to claim 2, characterized in that: The inner cavity of the pipe fitting (1) is provided with a guide groove (8), and a guide block (9) is slidably connected to the inner cavity of the guide groove (8). One side of the guide block (9) is fixedly connected to the filter plate (401).

6. A closed feeding device according to claim 2, characterized in that: The top of the card block (404) is fixedly connected to a push plate (10), and both sides of the push plate (10) are slidably connected to the fixed block (402).

7. A closed feeding device according to claim 2, characterized in that: The inner cavity of the fixing block (402) is provided with a sliding groove (11), and the inner cavity of the sliding groove (11) is slidably connected to the locking block (404).

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