Tetraethyl orthosilicate feeding device

Abstract

The utility model relates to the technical field of tetraethoxysilane preparation, and discloses a tetraethoxysilane feeding device which comprises a reaction cylinder, the top of the reaction cylinder is fixedly connected with a cover body, the top of the cover body is provided with a feeding port, and the top of the cover body is provided with a discharging assembly. According to the feeding device of tetraethoxysilane, the fixed volume design of the quantitative cylinder ensures that the raw material quantity is constant during each rotary feeding, high-precision quantitative feeding is realized, the accurate ratio of chemical reaction is ensured, and unstable product quality caused by fluctuation of the raw material feeding quantity is avoided, the raw material is divided into a plurality of small liquid flows through the through holes formed in the base plate, and the production efficiency is improved. When the small liquid flow falls into the reaction cylinder, the contact area of the small liquid flow and a solvent is increased, the mixing process is accelerated, more uniform reaction is ensured, the reaction efficiency and the product quality are improved, the lower pressing plate pushes the raw materials to rapidly pass through the through holes, the flow speed of the liquid is increased, and the reaction speed and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of tetraethyl orthosilicate preparation technology, specifically to a tetraethyl orthosilicate feeding device. Background Technology

[0002] Tetraethyl orthosilicate is an important organosilicon compound with wide applications in many fields. In materials science, tetraethyl orthosilicate is a key raw material for the preparation of silica sol, silica gel and nano silica. It can be used in high-performance coatings in coatings, optical thin films and semiconductor packaging. The synthesis of tetraethyl orthosilicate is mostly obtained by reacting silicon tetrachloride, a byproduct of the production of polycrystalline silicon and trichlorosilane, with ethanol, while hydrogen chloride is generated.

[0003] However, in the actual preparation process of the above-mentioned tetraethyl orthosilicate, the raw material is weighed before being fed into the container. Separating the weighing and feeding operations increases the complexity of the process and wastes time. Especially in batch production, this separate operation significantly reduces production efficiency. In view of this, we propose a feeding device for tetraethyl orthosilicate. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for tetraethyl orthosilicate to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for tetraethyl orthosilicate, comprising a reaction cylinder, a cover fixedly connected to the top of the reaction cylinder, a feed inlet on the top of the cover, and a feeding assembly on the top of the cover, the feeding assembly comprising:

[0006] A servo motor is fixedly connected to the top end face of the cover. A pad is fixedly connected to the inner wall of the feed port, and a magnetic sheet is fixedly connected to the top end face of the pad.

[0007] A rotating frame is fixedly connected to the output shaft of a servo motor. A metering cylinder is inserted into the top of the rotating frame. A feeding port is opened at the bottom of the metering cylinder. A limit post is fixedly connected to the inner bottom surface of the metering cylinder. A baffle is sleeved on the side wall of the limit post.

[0008] The cover body is fixedly connected to the top of the cover body, and an injection cylinder is fixedly connected to the top end face of the cover body.

[0009] Preferably, a lower sealing gasket is fixedly connected to the bottom end face of the rotating frame, and an upper sealing gasket is fixedly connected to the top end face of the rotating frame. The lower sealing gasket is movably connected to the cover, and the upper sealing gasket is movably connected to the cover.

[0010] Preferably, the baffle is movably connected to the inner wall of the metering cylinder, and the baffle is staggered with the discharge port.

[0011] Preferably, the top end face of the pad is provided with through holes, and the number of through holes is set in several groups, with the several groups of through holes being equally spaced on the top end face of the pad.

[0012] Preferably, the baffle is a magnetic plate. The baffle and the magnetic sheet are like poles that repel each other. When the baffle moves above the magnetic sheet, the magnetic sheet pushes the baffle upward, thereby allowing the raw material in the metering cylinder to pass through the through hole on the pad and fall into the reaction cylinder.

[0013] Preferably, a mounting bracket is fixedly connected to the top of the cover, a cylinder is fixedly connected to the top end face of the mounting bracket, and a pressure plate is sleeved on the output end of the cylinder.

[0014] Compared with the prior art, the present invention provides a feeding device for tetraethyl orthosilicate, which has the following beneficial effects:

[0015] 1. The feeding device for this tetraethyl orthosilicate, through its feeding components and the fixed volume design of the metering cylinder, ensures that the amount of raw material is constant during each rotation feeding, thereby achieving high-precision quantitative feeding, ensuring accurate chemical reaction ratios, and avoiding product quality instability caused by fluctuations in the amount of raw material fed. The through holes on the pad divide the raw material into several small liquid streams. When the small liquid streams fall into the reaction cylinder, the contact area with the solvent is increased, which helps to accelerate the mixing process, ensure a more uniform reaction, and improve reaction efficiency and product quality.

[0016] 2. The feeding device for this tetraethyl orthosilicate uses a cylinder and a lower pressure plate. The lower pressure plate pushes the raw material rapidly through the through hole, increasing the flow rate of the liquid and causing the liquid to be injected into the reaction cylinder. The raw material injected into the reaction cylinder forms a high-speed liquid flow, which can be quickly dispersed into the reaction medium and fully contact with other reactants, thereby accelerating the mixing process and improving the reaction speed and efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is an exploded view of the material feeding component of this utility model;

[0019] Figure 3 This is a schematic diagram of the cover structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the assembly of the cover body of this utility model;

[0021] Figure 5 This is an exploded view of the rotating frame of this utility model;

[0022] Figure 6 This is an exploded view of the metering cylinder of this utility model.

[0023] In the diagram: 1. Reaction cylinder; 2. Cover; 3. Feeding assembly; 301. Servo motor; 302. Pad; 303. Magnetic sheet; 304. Rotating frame; 305. Metering cylinder; 306. Feeding port; 307. Limiting post; 308. Baffle; 309. Cover; 310. Injection cylinder; 4. Lower sealing gasket; 5. Upper sealing gasket; 6. Mounting frame; 7. Cylinder; 8. Lower pressure plate. Detailed Implementation

[0024] like Figures 1-6 As shown, this utility model provides a technical solution: a feeding device for tetraethyl orthosilicate, including a reaction cylinder 1, a cover 2 fixedly connected to the top of the reaction cylinder 1, a feed inlet on the top of the cover 2, and a feeding assembly 3 on the top of the cover 2, the feeding assembly 3 including:

[0025] In one embodiment of this utility model, a servo motor 301 is fixedly connected to the top end face of the cover 2, a pad 302 is fixedly connected to the inner wall of the feed port, a magnetic sheet 303 is fixedly connected to the top end face of the pad 302, and a through hole is opened on the top end face of the pad 302. The number of through holes is set in several groups, and the several groups of through holes are equally spaced on the top end face of the pad 302.

[0026] The rotating frame 304 is fixedly connected to the output shaft of the servo motor 301. A metering cylinder 305 is inserted into the top of the rotating frame 304. A discharge port 306 is opened at the bottom of the metering cylinder 305. A limiting post 307 is fixedly connected to the inner bottom surface of the metering cylinder 305. A baffle 308 is sleeved on the side wall of the limiting post 307. The baffle 308 is movably connected to the inner wall of the metering cylinder 305. The baffle 308 and the discharge port 306 are staggered. The baffle 308 is a magnetic plate. The baffle 308 and the magnetic sheet 303 are like poles and repel each other. When the baffle 308 moves above the magnetic sheet 303, the magnetic sheet 303 pushes the baffle 308 upward, so that the raw material in the metering cylinder 305 can pass through the through hole on the pad 302 and fall into the reaction cylinder 1.

[0027] The cover 309 is fixedly connected to the top of the cover 2. The top end face of the cover 309 is fixedly connected to the injection cylinder 310. The bottom end face of the rotating frame 304 is fixedly connected to the lower sealing gasket 4. The top end face of the rotating frame 304 is fixedly connected to the upper sealing gasket 5. The lower sealing gasket 4 is movably connected to the cover 2. The upper sealing gasket 5 is movably connected to the cover 309, thereby improving the sealing degree of the rotating frame 304.

[0028] Servo motor 301 drives rotating frame 304 and metering cylinder 305 to rotate. Raw material falls into metering cylinder 305 through feeding cylinder 310. Metering cylinder 305 can only hold a certain amount of raw material. When metering cylinder 305 rotates above the feed inlet, magnetic sheet 303 pushes baffle 308 upward, allowing the raw material in metering cylinder 305 to pass through the through hole on pad 302 and fall into reaction cylinder 1. The fixed volume design of metering cylinder 305 ensures that the amount of raw material is constant each time it rotates to feed, thereby achieving high-precision metering, ensuring accurate chemical reaction ratio, and avoiding product quality instability due to fluctuations in the amount of raw material fed. The through hole on pad 302 divides the raw material into several small liquid streams. When the small liquid streams fall into reaction cylinder 1, the contact area with the solvent increases, which helps to accelerate the mixing process, ensure more uniform reaction, and improve reaction efficiency and product quality.

[0029] In addition, a mounting bracket 6 is fixedly connected to the top of the cover 309, and a cylinder 7 is fixedly connected to the top end face of the mounting bracket 6. A lower pressure plate 8 is sleeved on the output end of the cylinder 7. The diameter of the lower pressure plate 8 is equal to the inner diameter of the metering cylinder 305. When the metering cylinder 305 rotates to the top of the feed inlet, the cylinder 7 pushes the lower pressure plate 8 downward, causing the lower pressure plate 8 to push the raw material through the through hole rapidly, increasing the flow rate of the liquid, and causing the liquid to be injected into the reaction cylinder 1. The raw material is injected into the reaction cylinder 1 to form a high-speed liquid flow, which can be quickly dispersed into the reaction medium and fully contacted with other reactants, thereby accelerating the mixing process and improving the reaction speed and efficiency.

[0030] In this invention, during use, the servo motor 301 drives the rotating frame 304 and the metering cylinder 305 to rotate. The raw material falls into the metering cylinder 305 through the feeding cylinder 310. The metering cylinder 305 can only hold a certain amount of raw material. When the metering cylinder 305 rotates above the feed inlet, the magnetic sheet 303 pushes the baffle 308 upward, allowing the raw material in the metering cylinder 305 to pass through the through hole on the pad 302 and fall into the reaction cylinder 1. The fixed volume design of the metering cylinder 305 ensures that the amount of raw material is constant each time it rotates to feed, thereby achieving high-precision metering. The through hole on the pad 302 divides the raw material into several small liquid streams. When the small liquid streams fall into the reaction cylinder 1, the contact area with the solvent increases, which helps to accelerate the mixing process, ensure a more uniform reaction, and improve reaction efficiency and product quality.

[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A tetraethyl orthosilicate feeding device, comprising a reaction cylinder (1), a cover (2) is fixedly connected to the top of the reaction cylinder (1), characterized in that: The top of the cover (2) is provided with an inlet, and the top of the cover (2) is provided with a discharging assembly (3), the discharging assembly (3) comprises: A servo motor (301) is fixedly connected to the top end face of the cover (2), the inner wall of the inlet is fixedly connected with a backing plate (302), and the top end face of the backing plate (302) is fixedly connected with a magnetic sheet (303); A rotating frame (304) is fixedly connected to the output shaft of the servo motor (301), the top of the rotating frame (304) is inserted with a quantitative cylinder (305), the bottom of the quantitative cylinder (305) is provided with a discharging port (306), the inner bottom surface of the quantitative cylinder (305) is fixedly connected with a limiting column (307), and the side wall of the limiting column (307) is sleeved with a baffle (308); A cover body (309) is fixedly connected to the top of the cover (2), and the top end face of the cover body (309) is fixedly connected with a feeding cylinder (310).

2. The tetraethyl orthosilicate feeding device according to claim 1, wherein: The bottom end face of the rotating frame (304) is fixedly connected with a lower sealing gasket (4), the top end face of the rotating frame (304) is fixedly connected with an upper sealing gasket (5), the lower sealing gasket (4) is movably connected with the cover (2), and the upper sealing gasket (5) is movably connected with the cover body (309).

3. The tetraethyl orthosilicate feeding device according to claim 1, wherein: The baffle (308) is movably connected with the inner wall of the quantitative cylinder (305), and the baffle (308) and the discharging port (306) are staggered.

4. The tetraethyl orthosilicate feeding device according to claim 1, wherein: The top end face of the backing plate (302) is provided with a through hole, the number of the through hole is provided with a plurality of groups, and the plurality of groups of through holes are arranged at equal intervals on the top end face of the backing plate (302).

5. The tetraethyl orthosilicate feeding device according to claim 1, wherein: The baffle (308) is a magnetic plate, and the baffle (308) and the magnetic sheet (303) repel each other.

6. The tetraethyl orthosilicate feeding device according to claim 1, wherein: The top of the cover body (309) is fixedly connected with a mounting frame (6), the top end face of the mounting frame (6) is fixedly connected with a gas cylinder (7), and the output end of the gas cylinder (7) is sleeved with a pressing plate (8).

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