Feeding device of chemical reaction kettle

Abstract

The invention discloses a chemical reaction kettle feeding device, and relates to the technical field of reaction kettles. The feeding pipe is obliquely arranged on the top wall of the reaction kettle body, the bottom end of the feeding pipe extends into the reaction kettle body, the liquid baffle is arranged at the lowest end of the feeding pipe, the U-shaped scraping plate is movably arranged on the discharging side of the liquid baffle in a sleeving mode, and the blowing assembly is arranged on the reaction kettle body, and the air outlet end of the blowing assembly is aligned with the side wall of the U-shaped scraping plate. The feeding pipe is obliquely arranged, so that the discharging end of the feeding pipe can be prevented from facing the bottom wall of the reaction kettle, and the area of a liquid material sputtered to the feeding end and the discharging end is effectively reduced; by arranging the liquid baffle, the discharging end of the feeding pipe can be blocked, so that liquid materials cannot be sputtered at the discharging end of the feeding pipe, and the defect that the feeding pipe is wetted by the liquid materials and adheres to the materials is effectively overcome; the U-shaped scraping plate is arranged, so that materials adhered to the discharging end can be scraped off; and by arranging the air blowing assembly, the materials scraped by the U-shaped scraping plate can be blown off, and the utilization rate of the raw materials is increased.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, and in particular to a feeding device for a chemical reactor. Background Art

[0002] Reactors are widely used in petroleum, chemical, rubber, pesticide, dye, medicine, food and other fields. They are generally made of carbon manganese steel, stainless steel and other composite materials.

[0003] In the prior art, in order to facilitate feeding, a feeding pipe is often set at the top of the reactor, and the material can be added into the reactor through the feeding pipe before or during the reaction. However, in actual feeding, at least the following technical problems are faced:

[0004] If materials are added in the middle of the reaction, because the reactor itself contains a certain amount of liquid material, if the material to be added contains some flake or larger granular solid materials, once the solid material is added to the reactor, the solid material collides with the liquid material, which may cause part of the liquid material to splash to the bottom end of the feed pipe (i.e., the discharge end), thus causing the bottom end of the feed pipe to become wet, and then in the subsequent feeding process, the solid material will adhere to the liquid material, causing the subsequently added solid material to gradually accumulate at the bottom end of the feed pipe, thereby causing the feeding channel of the feed pipe to become narrower, seriously affecting the feeding efficiency; at the same time, due to the accumulation of a large amount of material at the bottom end of the feed pipe, it is difficult to add all the solid material into the reactor, seriously affecting the reaction ratio of the materials in the reactor, and then affecting the smooth synthesis of chemical products. Summary of the invention

[0005] The object of the present invention is to provide a feeding device for a chemical reactor, which can transfer materials adhering to the discharge end of a feed pipe into a reactor body, thereby effectively avoiding technical problems such as poor feeding due to accumulation of materials at the discharge end of the feed pipe, low raw material utilization, and unsmooth reaction of materials in the reactor body.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A feeding device for a chemical reactor comprises a feeding pipe which is obliquely arranged on the top wall of a reactor body and whose bottom end extends into the reactor body, a liquid baffle plate arranged at the lowest end of the feeding pipe, a U-shaped scraper plate movably sleeved on the discharge side of the liquid baffle plate, and an air blowing component which is arranged on the reactor body and whose air outlet end is aligned with the side wall of the U-shaped scraper plate.

[0008] Preferably, a first hydraulic rod is provided on the inner wall of the reactor body, and the U-shaped scraper is connected to the telescopic end of the first hydraulic rod.

[0009] Preferably, the blowing device includes a first air nozzle arranged on the top wall of the reactor, a first air pipe connected to the first air nozzle, and a gas cylinder connected to the first air pipe; the air outlet end of the first air nozzle is aligned with the side of the liquid baffle away from the first hydraulic rod.

[0010] Preferably, the side wall of the reactor body is also provided with a plugging device, which includes a connecting plate arranged on the side wall and bottom wall of the feed pipe, a plugging cover connected to the connecting plate, and a second hydraulic rod driving the plugging cover to move in the horizontal direction; the plugging cover can cover the discharge end of the feed pipe and the liquid baffle; the left side of the plugging cover is an opening structure.

[0011] Preferably, a vertical tube is further provided at the top of the feed tube, a motor is provided on the side wall of the vertical tube, a screw conveying shaft is provided inside the feed tube along the axial direction, and the screw conveying shaft is fixedly connected to the output end of the motor.

[0012] Preferably, the blowing device further comprises a second air nozzle arranged on the vertical pipe, and the second air nozzle is connected to the gas cylinder through a second air pipe.

[0013] Preferably, a connecting ring is provided inside the air inlet end of the vertical pipe, and the second air nozzle is provided at the bottom end of the connecting ring.

[0014] Preferably, a notch is provided at the bottom end of the blocking cover; a third hydraulic rod is provided on one side of the second hydraulic rod provided on the reactor body, and a baffle for blocking the notch is provided at the telescopic end of the third hydraulic rod.

[0015] Preferably, the bottom wall of the blocking cover is arranged to be inclined upward toward the direction of the second hydraulic rod, and the top wall of the baffle is matched with the bottom wall of the blocking cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By obliquely arranging the feed pipe at the top of the reactor body, the discharge end of the feed pipe can be placed on a vertical plane, thereby preventing the discharge end of the feed pipe from directly facing the bottom wall of the reactor body, effectively reducing the area, degree and probability of liquid material splashing onto the vertical plane; by obliquely arranging a liquid baffle plate at the discharge end of the feed pipe, the vertical plane of the discharge end of the feed pipe can be blocked, thereby preventing the entire discharge end of the feed pipe from being splashed with liquid material, effectively avoiding the technical defect that the feed pipe is easily adhered to the material due to being wetted by the liquid material;

[0018] In the process of solid materials containing flakes or larger particles falling from the feed pipe and the liquid baffle plate to the liquid material in sequence, part of the liquid material will splash to the discharge end of the liquid baffle plate, causing the discharge end of the liquid baffle plate to be wetted, thereby adhering to some solid materials, and then causing subsequent feeding to be poor, and then causing the solid materials and liquid materials to not be fully utilized. Based on this, the present invention provides a U-shaped scraper, which can clamp the discharge end of the liquid baffle plate through the U-shaped opening, and then move the U-shaped scraper horizontally along the discharge end to scrape the material adhered to the discharge end to one side of the liquid baffle plate. When the liquid baffle plate and one side of the U-shaped scraper are flush, the blowing component is used to blow air to the material scraped to one side of the liquid baffle by the U-shaped scraper, so that the part of the accumulated material can be blown down along the side wall of the baffle plate into the reactor body, and then the solid material can be introduced into the reactor body to the greatest extent, so as to improve the utilization rate of the raw materials.

[0019] Through the synergistic effect of the above-mentioned devices, the smoothness of the solid material feeding process can be effectively improved, while the residue of solid material in the feed pipe and on the liquid baffle plate can be minimized, effectively improving the utilization rate of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic cross-sectional structure diagram of Example 1 in the front view direction;

[0021] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure in the right viewing direction;

[0022] Figure 3 for Figure 2 Schematic diagram of the working structure of the middle U-shaped scraper;

[0023] Figure 4 It is a schematic cross-sectional structure diagram of embodiment 2 in the front view direction;

[0024] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure in the right viewing direction;

[0025] Figure 6 for Figure 3 A schematic diagram of the structure of the middle blocking cover when it is working in the positive direction;

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure in the 3rd front view direction;

[0027] In the figure: 1-reactor body, 2-feed pipe, 3-liquid baffle, 4-U-shaped scraper, 5-first hydraulic rod, 6-first air nozzle, 7-first air pipe, 18-connecting plate, 10-blocking cover, 19-second hydraulic rod, 12-vertical pipe, 13-motor, 16-screw conveying shaft, 14-second air nozzle, 15-connecting ring, 17-notch, 20-third hydraulic rod, 21-baffle. DETAILED DESCRIPTION

[0028] Example 1

[0029] In the prior art, if materials are added in the middle of the reaction, because the reactor itself contains a certain amount of liquid materials, if the materials to be added contain some flake-shaped or larger granular solid materials, once the solid materials are added to the reactor, the solid materials collide with the liquid materials, which may cause part of the liquid materials to splash to the bottom end of the feed pipe (i.e., the discharge end), thus causing the bottom end of the feed pipe to become wet, and then in the subsequent feeding process, the solid materials will adhere to the liquid materials, causing the subsequently added solid materials to gradually accumulate at the bottom end of the feed pipe, thereby causing the feeding channel of the feed pipe to become narrower, seriously affecting the feeding efficiency; at the same time, due to the accumulation of a large amount of materials at the bottom end of the feed pipe, it is difficult to add all the solid materials into the reactor, which seriously affects the reaction ratio of the materials in the reactor, and further affects the smooth synthesis of chemical products.

[0030] Based on this, the present invention provides a chemical reactor feeding device, comprising a feeding pipe 2 obliquely arranged on the top wall of the reactor body 1 and extending the bottom end into the reactor body 1, a liquid baffle 3 arranged at the lowest end of the feeding pipe 2, a U-shaped scraper 4 movably sleeved on the discharge side of the liquid baffle 3, and a blowing component arranged on the reactor body 1 and the air outlet end is aligned with the side wall of the U-shaped scraper 4. Figure 1 and Figure 2 As shown, the feed pipe 2 in the present invention is a square feed pipe 2, and the liquid baffle 3 is obliquely arranged at the discharge end of the feed pipe 2 and parallel to the inner bottom wall of the feed pipe 2, so that the feed pipe 2 and the liquid baffle 3 are seamlessly connected to ensure smooth feeding of materials. Figure 1-2 As shown, the inner wall of the reactor body 1 is provided with a first hydraulic rod 5, and the U-shaped scraper 4 is connected to the telescopic end of the first hydraulic rod 5; the U-shaped opening of the U-shaped scraper 4 is matched with the discharge end (i.e., the rightmost side) of the liquid baffle 3. It is worth noting that in order to facilitate observation of the reactor body 1, an observation window or the like can be provided at the top of the reactor body 1 (existing technology, not shown in the figure).

[0031] Further, such as Figure 1-2 As shown, the blowing device includes a first gas nozzle 6 arranged on the top wall of the reactor body 1, a first gas pipe 7 connected to the first gas nozzle 6, and a gas cylinder (filled with inert gas) connected to the first gas pipe 7; the gas outlet end of the first gas nozzle 6 is aligned with the side of the liquid baffle 3 away from the first hydraulic rod 5, wherein the first gas pipe 7 is provided with an air pump, because the air pump, gas cylinder, etc. are all existing technologies, the working principle of the blowing assembly is not described in detail, and the gas cylinder or air pump is not drawn in the figure.

[0032] Working principle: When a certain amount of liquid material has been added into the reactor body 1, and it is necessary to add solid material containing large-sized particles or flakes into the reactor body 1, the solid material is added along the feeding end of the feeding pipe 2. After adding, the solid material falls along the inclined feeding pipe 2 to the liquid baffle plate 3, and finally falls along the inclined liquid baffle plate 3 into the liquid material in the reactor body 1, so as to achieve the purpose of smooth feeding.

[0033] Among them, due to the provision of the liquid baffle plate 3, the discharge end of the feed pipe 2 can be blocked, so that the entire discharge end of the feed pipe 2 will not be splashed with liquid materials, effectively avoiding the technical defect that the feed pipe 2 is easily adhered to the material due to being wetted by the liquid material. When the solid material falls into the liquid material, it collides with the liquid material, which causes part of the liquid material to be splashed to the discharge end of the liquid baffle plate 3 (i.e., the right side or the lower right side), causing the discharge end of the liquid baffle plate 3 to be wetted, thereby adhering to some solid materials. After the solid materials accumulate at the discharge end of the liquid baffle plate 3, it will cause the subsequent material feeding to be poor. At the same time, because some solid materials remain at the discharge end of the liquid baffle plate 3, the solid materials cannot be fully utilized.

[0034] Based on the above technical problems, after feeding for a period of time and after the feeding is completed, if Figure 3 As shown, the first hydraulic rod 5 is started to make the U-shaped scraper 4 move horizontally along the direction of the liquid baffle plate 3. When it moves to contact the right end of the liquid baffle plate 3, the U-shaped opening of the U-shaped scraper 4 can just clamp the right end of the liquid baffle plate 3. After clamping, in the process of the U-shaped scraper 4 further moving forward, the material adhering to the discharge end of the liquid baffle plate 3 can be gradually scraped to the front side of the liquid baffle plate 3. When the liquid baffle plate 3 and the front side of the U-shaped scraper 4 are flush; at this time, the air pump is turned on to allow the inert gas to enter the first air nozzle 6 through the first air pipe 7, and then sprayed along the first air nozzle 6 to the material on the front side of the U-shaped scraper 4, so that it falls rapidly under the action of the airflow, and then the material scraped to the front side of the liquid baffle plate 3 is quickly blown into the reactor body 1, and then all solid materials are introduced into the reactor body 1 to the maximum extent, so as to improve the utilization rate of the raw materials; at the same time, because the material accumulated at the discharge end of the liquid baffle plate 3 is scraped off, the smoothness of solid feeding can be effectively ensured.

[0035] Through the synergistic effect of the above-mentioned devices, the material accumulated on the liquid baffle plate 3 can be scraped off, thereby effectively improving the smoothness of the material, while minimizing the residue of material in the feed pipe 2 and related components, effectively improving the utilization rate of the raw materials.

[0036] Example 2

[0037] Because the material in the reactor body 1 may be heated during the reaction process, and a certain amount of heat will be generated in the heating environment, the heat will drift into the feed pipe 2, thereby causing the inner wall of the feed pipe 2 to be wetted. When solid materials are added in the middle of the reaction, the solid materials will adhere to the wet inner wall of the feed pipe 2, thereby causing material accumulation, seriously affecting the smoothness of the feeding. Based on this, on the basis of Example 1, as Figure 4-6 As shown, the side wall of the reactor body 1 is also provided with a plugging device, which includes a connecting plate 18 arranged on the side wall and bottom wall of the feed pipe 2, a plugging cover 10 connected to the connecting plate 18, and a second hydraulic rod 19 for driving the plugging cover 10 to move in the horizontal direction; the plugging cover 10 can cover the discharge end of the feed pipe 2 and the liquid baffle 3; the left side of the plugging cover 10 is an opening structure.

[0038] Working principle: When the feeding device is not feeding, the second hydraulic rod 19 is started to move the blocking cover 10 toward the direction of the feeding pipe 2 until the left side of the blocking cover 10 is tightly abutted against the connecting plate 18. At this time, both the discharge end of the feeding pipe 2 and the liquid baffle plate 3 are covered in the blocking cover 10. By setting the blocking cover 10, the discharge end of the feeding pipe 2 and the liquid baffle plate 3 can be covered, thereby effectively preventing hot air from directly entering and drifting into the feeding pipe 2 and the liquid baffle plate 3, causing the feeding pipe 2 or the liquid baffle plate 3 to be wet, and then causing solid materials to remain on the feeding pipe 2 or the liquid baffle plate 3, resulting in extremely poor subsequent feeding, and causing a large amount of material to remain, affecting the technical problem of raw material utilization.

[0039] Example 3

[0040] Although the feed pipe 2 and the liquid baffle plate 3 are in an inclined state, which facilitates feeding to a certain extent, solid materials may accumulate in the feed pipe 2 during the feeding process, thereby causing poor feeding. Based on this, on the basis of Example 2, as shown in FIG. Figure 7 As shown, a vertical pipe 12 is also provided at the top of the feed pipe 2, a motor 13 is provided on the side wall of the vertical pipe 12, a screw conveying shaft 16 is provided inside the feed pipe 2 along the axial direction, and the screw conveying shaft 16 is fixedly connected to the output end of the motor 13.

[0041] Working principle: During the feeding process, the motor 13 is started to drive the screw conveyor shaft 16 to rotate. During the rotation of the screw conveyor shaft 16, the accumulation of materials in the feeding pipe 2 can be effectively avoided, thereby effectively improving the feeding smoothness.

[0042] Furthermore, although the spiral conveying shaft 16 is provided in Example 3, the feeding smoothness of the feed pipe 2 can be effectively improved, but because the feed pipe 2 is not vibrated during feeding, in actual implementation, some solid materials will still remain on the side wall of the feed pipe 2, especially the bottom wall, and on the spiral conveying shaft 16 and the liquid baffle 3. These residual solid materials are difficult to be completely discharged into the reactor body 1, which leads to material loss. Based on this, on the basis of Example 3, as Figure 7 As shown, the blowing device also includes a second air nozzle 14 arranged on the vertical pipe 12, and the second air nozzle 14 is connected to the gas cylinder through a second air pipe (existing technology, not shown in the figure), the second air pipe is connected to the gas cylinder, and an air pump is also arranged on the second air pipe.

[0043] Working principle: After the feeding is completed, the motor 13 is turned off, and then the air pump on the second air pipe is started to spray the inert gas into the feeding pipe 2 along the second air nozzle 14. Under the action of the airflow, the residual material in the feeding pipe 2 and the material on the liquid baffle 3 can be blown into the reactor body 1, thereby improving the utilization rate of the raw materials.

[0044] Further, such as Figure 7 As shown, a connecting ring 15 is provided inside the air inlet end of the vertical pipe 12, and the second air nozzle 14 is provided at the bottom end of the connecting ring 15. In this solution, by providing the connecting ring 15 and arranging the second air nozzle 14 inside the connecting ring 15, the second air nozzle 14 can be protected by the connecting ring 15 to prevent materials from being directly added to the second air nozzle 14. At the same time, the second air nozzle 14 can also be prevented from blocking the feeding of solid materials, thereby ensuring smooth feeding.

[0045] Furthermore, during the feeding process of Example 3, the solid material may contain powdered material in addition to larger granular or flake materials. Since the powdered material itself is light and easy to float, when the second air nozzle 14 is used to blow out the remaining material, the powdered material will be blown out quickly along the discharge end of the feed pipe 2, and then diffuse into the liquid material of the reactor body 1, and may also diffuse to the higher side walls or top walls of the reactor body 1, etc., while the powdered material that has not entered the liquid material is difficult to participate in the reaction, which leads to material waste. Based on this, if Figure 7As shown, a notch 17 is provided at the bottom of the blocking cover 10 ; a third hydraulic rod 20 is provided on one side of the second hydraulic rod 19 provided on the reactor body 1 , and a baffle 21 for blocking the notch 17 is provided at the telescopic end of the third hydraulic rod 20 . During specific implementation, before the second air nozzle 14 blows air into the feed pipe 2, the second hydraulic rod 19 is started first to make the left side of the blocking cover 10 abut against the connecting plate 18, and then air is blown. Since the slot 17 is arranged at the bottom end of the blocking cover 10, the airflow can blow away all the materials remaining in the feed pipe 2 and on the liquid baffle plate 3, and the blown-off materials are blown out along the slot 17. The slot 17 can play a good guiding role in the airflow, so that the remaining materials and the inert gas are blown out from the slot 17 together. Since the remaining materials will move along the direction of the airflow, and the direction of the airflow is downward, the degree of diffusion of the materials in other directions can be greatly reduced, thereby increasing the amount of solid materials entering the liquid materials, and effectively reducing the waste of solid materials. In addition, due to the setting of the groove 17 in the present solution, it is difficult for the sealing cover 10 to form a sealing state with the connecting plate 18. Therefore, a baffle 21 is additionally provided in the present solution. When the sealing cover 10 covers the liquid baffle plate 3 and the liquid outlet end of the feed pipe 2, the baffle 21 can be blocked at the groove 17 under the action of the third hydraulic rod 20, thereby forming a sealing state between the baffle 21, the sealing cover 10 and the connecting plate 18, thereby preventing hot air from entering the feed pipe 2 and the liquid baffle plate 3.

[0046] Further, such as Figure 7 As shown, the bottom wall of the blocking cover 10 is arranged upwardly and tilted toward the second hydraulic rod 19, and the top wall of the baffle 21 is matched with the bottom wall of the blocking cover 10, that is, the top wall of the baffle 21 is also arranged upwardly and tilted toward the second hydraulic rod 19. In this solution, a mutual squeezing force can be created between the bottom wall of the blocking cover 10 and the top wall of the baffle 21, thereby improving the sealing performance of the two.

[0047] It is worth noting that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "longitudinal", "horizontal" and so on, which refer to the orientation or position relationship in this patent, are based on the attached Figure 1 The orientation or position relationship shown.

Claims

1. A chemical reactor feeding device, characterized in that: The invention comprises a feed pipe (2) which is obliquely arranged on the top wall of the reactor body (1) and whose bottom end extends into the reactor body (1), a liquid baffle (3) arranged at the lowest end of the feed pipe (2), a U-shaped scraper (4) which is movably sleeved on the discharge side of the liquid baffle (3), and an air blowing component which is arranged on the reactor body (1) and whose air outlet end is aligned with the side wall of the U-shaped scraper (4).

2. A chemical reactor feeding device according to claim 1, characterized in that: The inner wall of the reactor body (1) is provided with a first hydraulic rod (5), and the U-shaped scraper (4) is connected to the telescopic end of the first hydraulic rod (5).

3. A chemical reactor feeding device according to claim 1, characterized in that: The blowing device comprises a first air nozzle (6) arranged on the top wall of the reactor, a first air pipe (7) connected to the first air nozzle (6), and a gas cylinder connected to the first air pipe (7); the air outlet end of the first air nozzle (6) is aligned with the side of the liquid baffle (3) away from the first hydraulic rod (5).

4. A chemical reactor feeding device according to claim 1, characterized in that: The side wall of the reactor body (1) is also provided with a plugging device, which comprises a connecting plate (18) arranged on the side wall and the bottom wall of the feed pipe (2), a plugging cover (10) connected to the connecting plate (18), and a second hydraulic rod (19) for driving the plugging cover (10) to move in the horizontal direction; the plugging cover (10) can cover the discharge end of the feed pipe (2) and the liquid baffle (3); the left side of the plugging cover (10) is an open structure.

5. A chemical reactor feeding device according to claim 4, characterized in that: A vertical tube (12) is also provided at the top of the feed pipe (2), a motor (13) is provided on the side wall of the vertical tube (12), a screw conveying shaft (16) is provided inside the feed pipe (2) along the axial direction, and the screw conveying shaft (16) is fixedly connected to the output end of the motor (13).

6. A chemical reactor feeding device according to claim 5, characterized in that: The blowing device further comprises a second gas nozzle (14) arranged on the vertical pipe (12), and the second gas nozzle (14) is connected to the gas cylinder via a second gas pipe.

7. A chemical reactor feeding device according to claim 6, characterized in that: A connecting ring (15) is arranged inside the air inlet end of the vertical pipe (12), and the second air nozzle (14) is arranged at the bottom end of the connecting ring (15).

8. A chemical reactor feeding device according to claim 6, characterized in that: The bottom end of the blocking cover (10) is provided with a notch (17); a third hydraulic rod (20) is provided on one side of the reactor body (1) on which the second hydraulic rod (19) is provided, and a baffle (21) for blocking the notch (17) is provided at the telescopic end of the third hydraulic rod (20).

9. A chemical reactor feeding device according to claim 8, characterized in that: The bottom wall of the blocking cover (10) is arranged to be inclined upwards in the direction of the second hydraulic rod (19), and the top wall of the baffle (21) is adapted to the bottom wall of the blocking cover (10).

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