A chemical reaction vessel

Abstract

This utility model discloses a chemical reaction vessel, belonging to the field of reaction vessel technology. It includes a top cover matching the reaction vessel and a stirring shaft. The top of the reaction vessel is connected to the top cover via several stainless steel spring hooks. The top of the reaction vessel is convex, and several arc-shaped protrusions are evenly distributed in a ring array on the outer wall of the inner ring of the top. A gap is left between the arc-shaped protrusions and the upper surface of the outer ring of the top of the reaction vessel, and this gap is designed as a slot. The bottom of the top cover is concave. This chemical reaction vessel uses slotted blocks for initial locking and sealing, and then uses cross-arranged stainless steel spring hooks for secondary tightening, avoiding uneven pre-tightening force, enhancing sealing performance, and solving the problem of uneven pre-tightening force in traditional flange connections, which leads to leakage risks in the reaction vessel. Simultaneously, two scrapers forming a closed loop clean the inner wall of the reaction vessel, ensuring uniform and effective stirring, and improving the reaction effect.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically a chemical reaction vessel. Background Technology

[0002] A reaction vessel is a closed container equipped with a stirring device. Chemical reaction vessels are the core equipment used in chemical production to realize chemical reactions (such as polymerization, esterification, neutralization, etc.) and physical changes (such as dissolution, crystallization, distillation, extraction, emulsification, etc.).

[0003] Existing traditional open-type chemical reactors are mostly used in atmospheric or low-pressure working environments. Their bodies and top covers are separable and are mostly connected by flanges. However, flange connections are prone to uneven bolt preload, leading to insufficient sealing of the reactor and thus posing a risk of leakage during use. In addition, during operation, some chemical raw materials inevitably adhere to the inner wall of the vessel (the inner wall of the reactor body), which cannot be effectively stirred and mixed, resulting in uneven stirring and affecting the reaction effect. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a chemical reaction vessel to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides a chemical reaction vessel, including a top cover matching the reaction tank and a stirring shaft. The top of the reaction tank is connected to the top cover by several stainless steel spring buckles. The top of the reaction tank is convex, and several arc-shaped protrusions are evenly distributed in a ring on the outer wall of the inner ring of the top. A gap is left between the arc-shaped protrusions and the upper surface of the outer ring of the top of the reaction tank, and the gap is set as a slot. The bottom of the top cover is concave, and several arc-shaped locking blocks matching the slot are evenly distributed in a ring on the inner wall of the bottom. A motor is bolted to the center of the top surface of the top cover, and the motor shaft of the motor passes through the top cover from top to bottom and extends into the reaction tank, and is connected to the stirring shaft through a coupling. A first scraper, a spiral blade, and a second scraper are bolted to the shaft of the stirring shaft from top to bottom.

[0007] Preferably, the number of stainless steel spring latches, arc-shaped protrusions, and arc-shaped locking blocks is the same, with four of each; the four stainless steel spring latches and the four arc-shaped protrusions are evenly distributed in a ring interval so that the connection between the reaction vessel and the top cover is tight, ensuring the sealing performance of the reaction vessel, preventing leakage during use, and improving the safety of the reaction vessel.

[0008] Preferably, the first scraper is located on the upper part of the stirring shaft and near the bottom of the top cover; the first scraper is arranged in an inverted U-shape and is integrally formed by two L-shaped scraper rods symmetrically welded onto the mounting ring sleeve. The outer wall of the L-shaped scraper rod contacts the inner wall of the reaction tank and is used to clean the attached material on the inner wall of the reaction tank.

[0009] Preferably, the second scraper is located at the bottom end of the stirring shaft; the second scraper is integrally formed by welding a ring, stirring rod, scraper blocks and mounting ring sleeve, and several scraper blocks are evenly distributed in a ring array on the outer wall of the ring for cleaning the bottom of the inner side wall of the reaction tank; several stirring rods are evenly distributed between the inner wall of the ring and the outer wall of the mounting ring sleeve; the bottom surface of the stirring rod is in contact with the inner bottom surface of the reaction tank.

[0010] Preferably, the bottom end of the L-shaped scraper in the first scraper is inserted into the ring in the second scraper, thus forming a closed loop, which facilitates the cleaning of deposits on the inner wall and bottom surface of the reactor.

[0011] Preferably, a T-shaped push rod is welded to the outer wall of the top cover, the T-shaped push rod is located on the center line of the top cover, and the T-shaped push rod is located at any arc-shaped locking block in the top cover; a limiting block is welded to the outer wall of the outer ring of the reaction vessel, which abuts against the bottom rod of the T-shaped push rod, the limiting block is located close to the center line of the reaction vessel, and the contact surface of the limiting block corresponds to the contact surface of the bottom rod of the T-shaped push rod, the limiting block is located at any arc-shaped protrusion in the reaction vessel, which facilitates the cooperation between the limiting block and the T-shaped push rod, so that the top cover and the reaction vessel are accurately aligned and the sealing performance is guaranteed.

[0012] Preferably, the top cover is provided with a feed inlet and a liquid inlet on both sides of the motor for feeding; a workbench is welded to the bottom of the reaction tank, and a discharge port is opened at the bottom of the reaction tank, which is located on either side of the center of the reaction tank; an automatic valve is provided on the feed inlet, the liquid inlet, and the discharge port, and the automatic valve is electrically connected to the controller on the reaction tank.

[0013] The beneficial effects of this utility model are as follows: The chemical reactor of this utility model, through the setting of a slot and a locking block for initial locking and sealing, can ensure uniform contact between the top surface of the reactor and the bottom surface of the top cover, avoiding uneven pre-tightening force; combined with the use of cross-set stainless steel spring buckles for secondary fastening, it not only enhances the sealing performance, but also ensures a stable connection between the reactor and the top cover, effectively solving the problem of uneven pre-tightening force in traditional flange connections, which leads to the risk of leakage in the reactor, and improving the safety of the reactor; at the same time, through two scrapers forming a closed loop, the adhering substances on the inner wall and inner bottom surface of the reactor can be cleaned, making the stirring and mixing effective and uniform, and improving the reaction effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A partial structural cross-sectional view of a chemical reaction vessel provided for an embodiment of this utility model;

[0016] Figure 2 A front view of the structure of a chemical reaction vessel provided for an embodiment of this utility model;

[0017] Figure 3 This is a top view of the reaction vessel;

[0018] Figure 4 Top view after the motor and discharge port are installed on the top cover;

[0019] Figure 5 This is a bottom view of the top cover;

[0020] Figure 6 This is a top view of the first scraper.

[0021] Figure 7 This is a top view of the second scraper.

[0022] Explanation of reference numerals in the attached diagram: 1. Reaction vessel; 2. Top cover; 3. Stirring shaft; 4. Stainless steel spring buckle; 5. Motor; 6. First scraper; 7. Second scraper; 8. Feed inlet; 9. Liquid inlet; 10. Workbench; 11. Discharge port; 12. Controller;

[0023] 101. Arc-shaped protrusion; 102. Slot; 103. Limiting block;

[0024] 201. Arc-shaped locking block; 202. T-shaped push rod. Detailed Implementation

[0025] 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.

[0026] Example 1, such as Figures 1 to 7As shown, a chemical reaction vessel includes a top cover 2 matching a reaction vessel 1 and a stirring shaft 3. The top of the reaction vessel 1 is connected to the top cover 2 by several stainless steel spring buckles 4. The top of the reaction vessel 1 is convex, and several arc-shaped protrusions 101 are evenly distributed in a ring on the outer wall of the inner ring of the top. A gap is left between the arc-shaped protrusions and the upper surface of the outer ring of the top of the reaction vessel, and the gap is set as a slot 102. The bottom of the top cover 2 is concave, and several arc-shaped locking blocks 201 matching the slot are evenly distributed in a ring on the inner wall of the bottom for initial fastening and locking to ensure that the top surface of the reaction vessel is in contact with the top cover. The bottom surface has uniform contact, facilitating the subsequent fastening of the stainless steel spring buckle (clasp and hook); a motor 5 is bolted to the center of the top surface of the top cover 2, and the motor shaft of the motor 5 passes through the top cover 2 from top to bottom and extends into the reaction tank 1, and is connected to the stirring shaft 3 through a coupling; the stirring shaft 3 has a first scraper 6, a spiral blade, and a second scraper 7 bolted to it from top to bottom, which are used to stir the material through the spiral blade, and to scrape off the residual material attached to the inner side wall and the inner bottom surface of the reaction tank by the first scraper and the second scraper respectively, so as to make the stirring and mixing effective and uniform, and improve the reaction effect.

[0027] The spiral blades are an existing structure, which are welded to the mounting ring. The mounting ring is then fitted onto the stirring rod and tightened with bolts. Further details will not be elaborated here.

[0028] Furthermore, it should be noted that in this embodiment, the reaction vessel 1, top cover 2, stirring shaft 3, first scraper 6, spiral blade, and second scraper 7 are all made of, but not limited to, stainless steel. In other embodiments, the materials of the reaction vessel, top cover, stirring shaft, first scraper, spiral blade, and second scraper can be adapted according to the actual usage scenario. In addition, in other embodiments, the edges of the first scraper and the vessel wall and the edges of the second scraper and the vessel wall are respectively bonded with elastic materials (selected, but not limited to, rubber) by high-temperature resistant and media-resistant adhesives (such as silicone glue and epoxy resin glue). This allows the scraper to adhere tightly to the inner wall of the reactor through deformation, reducing material residue and improving the scraping effect. At the same time, the elastic material can buffer contact stress and avoid scratching the inner wall of the reactor. The specific settings will not be described in detail here.

[0029] As a preferred option, such as Figure 3 , Figure 4 and Figure 5 As shown, the number of stainless steel spring latches 4, arc-shaped protrusions 101, and arc-shaped locking blocks 201 is the same, with four of each. The four stainless steel spring latches 4 and the four arc-shaped protrusions 101 are evenly distributed in a ring-shaped interval so that the connection between the reaction vessel and the top cover is tight, ensuring the sealing performance of the reaction vessel, preventing leakage during use, and improving the safety of the reaction vessel.

[0030] As a preferred option, such as Figure 1 As shown, the first scraper 6 is located on the upper part of the stirring shaft 3 and near the bottom of the top cover 2; Figure 1 As shown, the first scraper 6 is configured in an inverted U-shape, according to Figure 1 Combination Figure 6 As shown, it is integrally formed by symmetrically welding two L-shaped scraper rods onto the mounting ring; as Figure 1 As shown, the outer wall of the L-shaped scraper contacts the inner wall of the reaction tank, and is used to clean the material adhering to the inner wall of the reaction tank.

[0031] As a preferred option, such as Figure 1 As shown, the second scraper 7 is located at the bottom end of the stirring shaft 3; according to Figure 1 Combination Figure 7 As shown, the second scraper 7 is composed of a ring, a stirring rod, scraper blocks, and a mounting ring sleeve, assembled by welding. Three scraper blocks are evenly distributed in a ring array on the outer wall of the ring, used for cleaning the bottom of the inner wall of the reaction vessel; as shown... Figure 7 As shown, three stirring rods are evenly distributed between the inner wall of the ring and the outer wall of the mounting ring, which can stir the bottom of the reaction tank to make the mixing more uniform; the bottom surface of the stirring rod contacts the inner bottom surface of the reaction tank to clean the adhering substances on the inner bottom surface of the reaction tank.

[0032] As a preferred option, such as Figure 1 As shown, the bottom end of the L-shaped scraper in the first scraper 6 is inserted into the ring in the second scraper 7, thus forming a closed loop, which facilitates the cleaning of the deposits on the inner wall and bottom surface of the reactor.

[0033] As a preferred option, such as Figure 1 , Figure 2 and Figure 4 , Figure 5 As shown, a T-shaped push rod 202 is welded to the outer wall of the top cover 2 (in this embodiment, there is a T-shaped push rod on each side of the top cover symmetrically), so as to push the top cover by the push rod, causing the top cover to rotate on the top of the reaction vessel and screw the arc-shaped locking block into the locking groove; the T-shaped push rod 202 is located on the center line of the top cover 1, and the T-shaped push rod 202 is located at any arc-shaped locking block 201 in the top cover 1; as Figure 1 , Figure 2 and Figure 3As shown, a limiting block 103 is welded to the outer wall of the outer ring of the reaction vessel 1, which abuts against the bottom rod of the T-shaped push rod 202, and is used to limit the rotation of the top cover. The limiting block 103 is located close to the center line of the reaction vessel 1, and the contact surface of the limiting block 103 corresponds to the contact surface of the bottom rod of the T-shaped push rod 202. The limiting block 103 is located at any arc-shaped protrusion in the reaction vessel 1, which facilitates the cooperation between the limiting block and the T-shaped push rod, so that the top cover and the reaction vessel are accurately aligned and the sealing performance is guaranteed.

[0034] As a preferred option, such as Figure 1 and Figure 2 As shown, the top cover 2 is provided with a feed inlet 8 and a liquid inlet 9 on both sides of the motor 5 for feeding materials; a workbench 10 is welded to the bottom of the reaction tank 1, and a discharge port 11 is opened at the bottom of the reaction tank 1 (the discharge port 11 extends to the bottom of the table surface in the middle of the workbench 10), and the discharge port 11 is located on either side of the center of the reaction tank 1; an automatic valve is provided on the feed inlet 8, the liquid inlet 9, and the discharge port 11, and the automatic valve is electrically connected to the controller 12 on the reaction tank 1;

[0035] It should be noted that the automatic valve on the feed inlet is selected, but not limited to, an electric ball valve, to facilitate the conveying of particulate materials; the automatic valve on the liquid inlet and the automatic valve on the discharge port are selected, but not limited to, solenoid valves, and the specifics will not be described in detail in this embodiment.

[0036] In other embodiments, depending on actual usage needs, high and low level gauges, pressure sensors, and temperature sensors can be installed inside the reaction tank, and pressure reducing valves and exhaust valves can be installed on the top cover. The high and low level gauges, pressure sensors, temperature sensors, pressure reducing valves, and exhaust valves are electrically connected to the controller (selected but not limited to a controller with a display screen) to monitor the environment inside the tank in real time. Specific details will not be described in detail in this embodiment.

[0037] When using the device, ensure that the arc-shaped locking block in the top cover is misaligned with the locking groove in the reaction vessel when placing the installed top cover on top of the reaction vessel. Next, push the T-shaped push rod clockwise to rotate the top cover on top of the reaction vessel until the bottom rod of the T-shaped push rod abuts against the limiting block. At this point, the arc-shaped locking blocks and locking grooves in the top cover will engage one-to-one, and the stainless steel hooks welded to the top cover (referring to the hooks in the stainless steel spring-loaded latches, with the base of the hook welded to the outer wall of the top cover) will align with the stainless steel buckles welded to the reaction vessel (referring to the buckles in the stainless steel spring-loaded latches, with the base of the buckle welded to the outer wall of the reaction vessel). Then, gently lift the handle in the stainless steel buckle upwards, allowing the buckle ring to engage with the stainless steel hook. Press the handle downwards firmly to complete the connection of the stainless steel spring-loaded latches. Repeat this process until all stainless steel spring-loaded latches are connected. At this point, the top cover is tightly connected to the reaction vessel, ensuring good sealing and preventing loosening and leakage. Then, the operator connects the discharge port (referring to the liquid inlet and feed inlet) to the storage device and the discharge port to the collection container via automatic valves. The controller (mounted on the outer wall of the reaction vessel with bolts) then controls the discharge port valve to open, allowing material to be fed in until feeding is complete. The controller then closes the discharge port valve. Next, the controller starts the motor (model YVF2-200L-4, but not limited to) to rotate. The motor rotation drives the scraper and spiral blades to rotate. The scraper's rotation provides both a stirring effect and removes material adhering to the vessel wall, ensuring thorough and effective mixing. Finally, after mixing is complete, the controller stops the motor and opens the discharge port valve to unload the material. This process is convenient and easy to use.

[0038] In addition, the reactor needs to be cleaned after use in preparation for the next use.

[0039] Obviously, the above-described embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.

Claims

1. A chemical reaction vessel comprising a reaction vessel (1) matched with a top cover (2), and a stirring shaft (3), characterized in that: The top of the reaction vessel (1) is connected to the top cover (2) by several stainless steel spring buckles (4); the top of the reaction vessel (1) is convex, and several arc-shaped protrusions (101) are evenly distributed in a ring on the outer wall of the inner ring of the top; a gap is left between the arc-shaped protrusions (101) and the upper surface of the outer ring of the top of the reaction vessel (1), and the gap is set as a slot (102); the bottom of the top cover (2) is concave, and the inner wall of the bottom is arranged in a ring The array is evenly distributed with several arc-shaped locking blocks (201) that match the slot (102); a motor (5) is bolted to the center of the top surface of the top cover (2), and the motor (5) shaft of the motor (5) passes through the top cover (2) from top to bottom and extends into the reaction tank (1), and is connected to the stirring shaft (3) through a coupling; the stirring shaft (3) is bolted to the shaft of the first scraper (6), the spiral blade, and the second scraper (7) in sequence from top to bottom.

2. The chemical reaction vessel of claim 1, wherein: The stainless steel spring buckle (4), the arc-shaped protrusion (101), and the arc-shaped latch (201) are all the same number, with four in each case; the four stainless steel spring buckles (4) and the four arc-shaped protrusions (101) are evenly distributed in a ring-shaped interval.

3. The chemical reaction vessel of claim 1, wherein: The first scraper (6) is located on the upper part of the stirring shaft (3) and close to the bottom of the top cover (2); the first scraper (6) is set in an inverted U-shape and is integrally formed by two L-shaped scrapers symmetrically welded to the mounting ring sleeve, and the outer side wall of the L-shaped scraper is in contact with the inner side wall of the reaction tank (1).

4. The chemical reaction vessel of claim 1, wherein: The second scraper (7) is located at the bottom of the stirring shaft (3); the second scraper (7) is integrally formed by welding a ring, stirring rod, scraper block and mounting ring sleeve, and several scraper blocks are evenly distributed in a ring array on the outer wall of the ring; several stirring rods are evenly distributed between the inner wall of the ring and the outer wall of the mounting ring sleeve; the bottom surface of the stirring rod is in contact with the inner bottom surface of the reaction tank (1).

5. The chemical reaction vessel of claim 1, wherein: The bottom end of the L-shaped scraper in the first scraper (6) is inserted into the ring in the second scraper (7).

6. The chemical reaction vessel of claim 1, wherein: A T-shaped push rod (202) is welded to the outer wall of the top cover (2). The T-shaped push rod (202) is located on the center line of the top cover (2) and is located at any arc-shaped block (201) in the top cover (2). A limiting block (103) that abuts against the bottom rod of the T-shaped push rod (202) is welded to the outer wall of the outer ring of the reaction barrel (1). The limiting block (103) is located close to the center line of the reaction barrel (1), and the contact surface of the limiting block (103) corresponds to the contact surface of the bottom rod of the T-shaped push rod (202). The limiting block (103) is located at any arc-shaped protrusion (101) in the reaction barrel (1).

7. The chemical reaction vessel of claim 1, wherein: The top cover (2) is provided with a feed inlet (8) and a liquid inlet (9) on both sides of the motor (5); a workbench (10) is welded to the bottom of the reaction tank (1); a discharge port (11) is opened at the bottom of the reaction tank (1), and the discharge port (11) is located on either side of the center of the reaction tank (1); an automatic valve is provided on the feed inlet (8), the liquid inlet (9) and the discharge port (11), and the automatic valve is electrically connected to the controller (12) on the reaction tank (1).

Images