Alternating feeding device for chemical production and processing

Abstract

The application is suitable for the technical field of chemical production, and provides an alternating feeding equipment for chemical production and processing, which comprises a support, a reaction kettle and a driving motor, the reaction kettle is fixedly connected to the support, the driving motor is installed on the side wall of the reaction kettle, and further comprises: a feeding assembly which is annularly distributed on the support, the feeding assembly comprises a pouring pipe fixedly connected to the upper surface of the support, and the outer wall of the pouring pipe is slidably connected with a first sleeve; the beneficial effects of the embodiment of the application are as follows: when the reaction kettle operates, the heat generated by the reaction kettle enters the inside of the second sleeve through the discharge pipe, so that the raw materials to be discharged from the inside of the second sleeve are preheated, the raw materials are prevented from being solidified and adhered to the inner wall of the second sleeve, the raw materials have stronger flowability when being discharged through the discharge pipe, and the discharging efficiency is higher; the hollow floating plate drives the observation rod to slide at the change position on the top of the second sleeve, so that the staff can intuitively observe the missing of the raw materials and timely add the raw materials.

Description

Technical Field

[0001] This invention belongs to the field of chemical production technology, and in particular relates to an alternating feeding device for chemical production and processing. Background Technology

[0002] In chemical production, precise feeding and thorough mixing of raw materials are the core links to ensure product quality and improve production efficiency. Especially in multi-component raw material reaction systems, the timing control of feeding, flow stability and the effect of raw material pretreatment directly determine the reaction conversion rate and product uniformity.

[0003] Current chemical production mainly adopts two modes: single-pipeline intermittent feeding or multi-pipeline parallel feeding. Single-pipeline intermittent feeding requires frequent switching of raw material types, which is not only cumbersome and time-consuming, but also makes it easy for residual raw materials in the pipeline to cross-contaminate with subsequent raw materials. Although multi-pipeline parallel feeding can achieve simultaneous supply of multiple components, it requires multiple independent power and control units, resulting in high equipment investment costs, and it is difficult to accurately synchronize the feed rates of each pipeline.

[0004] High-viscosity or easily solidified raw materials are prone to solidification and adhesion during the feeding process due to excessively low pipeline temperature, causing pipeline blockage, affecting the continuity of feeding, and seriously reducing production efficiency.

[0005] When a large amount of solid particles or agglomerated materials are directly introduced into the reaction system, they tend to adhere and accumulate on the inner wall of the reactor. Traditional stirring components mostly use a fixed-speed impeller structure, which has a limited stirring range and obvious dead zones. In particular, the raw materials near the inner wall of the reactor are difficult to be fully stirred, resulting in uneven mixing of raw materials, incomplete reaction, and increased difficulty in subsequent separation and purification. Summary of the Invention

[0006] The purpose of this invention is to provide an alternating feeding device for chemical production and processing, which aims to solve the technical problems existing in the prior art mentioned in the background.

[0007] The present invention is implemented as follows: an alternating feeding device for chemical production and processing includes a support frame, a reaction vessel, and a drive motor. The reaction vessel is fixedly connected to the support frame, and the drive motor is installed on the side wall of the reaction vessel. The device also includes:

[0008] A feeding assembly is arranged in a ring on a support. The feeding assembly includes a feeding tube fixedly connected to the upper surface of the support. A first sleeve is slidably connected to the outer wall of the feeding tube. A first spring is fixedly connected between the first sleeve and the support. A hollow gear shaft is rotatably connected to the top of the first sleeve. A second sleeve is rotatably connected to the top of the hollow gear shaft. A first ball plug is movably connected to one end of the first sleeve near the hollow gear shaft. A second ball plug is movably connected to one end of the second sleeve near the hollow gear shaft. A discharge pipe is fixedly connected to one side of the second sleeve near the support. The discharge pipe is slidably connected to the top of the reactor. A gear ring that meshes with a drive motor is rotatably connected to the outer wall of the reactor. The hollow gear shaft is hollow inside and connects the first sleeve and the second sleeve.

[0009] The stirring assembly, located inside the reactor, is used to prevent raw materials from adhering to the inner wall of the reactor and failing to mix thoroughly.

[0010] As a preferred technical solution of the present invention: the diameter of the first ball plug is equal to the diameter of the first sleeve hole, the diameter of the second ball plug is equal to the inner diameter of the hollow tooth shaft, and the outer wall of the injection tube is tightly fitted with the inner wall of the first sleeve.

[0011] As another preferred technical solution of the present invention: a raw material box is fixedly connected to the upper surface of the support, a connecting pipe connected to the injection pipe is fixedly connected to the bottom of the raw material box, a first gear meshing with a gear ring is rotatably connected to the top of the raw material box, a second gear is rotatably connected to the middle of the raw material box, a transmission belt is connected between the second gear and the first gear, and a first stirring paddle is fixedly connected to the bottom of the second gear.

[0012] As another preferred technical solution of the present invention: the inner wall of the hollow gear shaft narrows in the middle, and a second stirring paddle is uniformly fixedly connected to the inner wall of the hollow gear shaft.

[0013] As another preferred technical solution of the present invention: an observation rod is slidably connected inside the second sleeve, a hollow float plate is fixedly connected to the bottom of the observation rod, a first magnetic ring is fixedly connected to the bottom of the hollow float plate, a first limiting plate is fixedly connected to the outer wall of the second sleeve above the toothed ring, a second limiting plate is fixedly connected to the outer wall of the second sleeve below the first limiting plate, a second magnetic ring is slidably connected to the outer wall of the second sleeve between the first and second limiting plates, the first and second magnetic rings have opposite magnetic properties, and a push plate is fixedly connected to the outer wall of the toothed ring.

[0014] As another preferred technical solution of the present invention: the push plate is in the shape of an inverted trapezoid, and when the push plate is located on the side close to the second sleeve, the push plate exerts downward pressure on the second sleeve through the second magnetic ring and the second limiting plate.

[0015] As another preferred technical solution of the present invention: a first motor is installed on the top of the reactor, and a circular tube is installed at the output end of the first motor. The circular tube is rotatably connected to the inside of the reactor. A crossbar is fixedly connected to the outer wall of the circular tube. A scraper is fixedly connected to the end of the crossbar away from the circular tube. The scraper is in contact with the inside of the reactor. A third stirring paddle is rotatably connected to the side of the scraper near the circular tube. A toothed rod is rotatably connected to the inside of the circular tube. A third gear that meshes with the toothed rod is rotatably connected to the top of the circular tube. The third gear meshes with a convex tooth fixed to the top of the inner cavity of the reactor. A sliding rod is slidably connected to the inside of the crossbar. A cam groove is opened on the toothed rod. A connecting piece is rotatably connected between the sliding rod and the cam groove. A groove plate is fixedly connected to the end of the sliding rod located inside the scraper.

[0016] As another preferred technical solution of the present invention: the side wall of the scraper is provided with toothed grooves, the surface of the groove plate is uniformly provided with transverse grooves, and the connecting member is eccentrically rotatably connected to the inside of the cam groove of the toothed rod.

[0017] The beneficial effects of this invention are as follows: During operation inside the reactor, the heat generated enters the second sleeve through the discharge pipe, preheating the raw material to be discharged from the second sleeve. This prevents the raw material from solidifying and adhering to the inner wall of the second sleeve, resulting in greater fluidity and higher discharge efficiency when discharged through the discharge pipe. The hollow float plate drives the observation rod to change its sliding position at the top of the second sleeve, allowing operators to visually detect raw material shortages and promptly add more. The equipment automatically stops adding material when shortages occur, effectively preventing the equipment from running dry and causing safety hazards. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure provided in an embodiment of the present invention;

[0019] Figure 2 This is a top view of the overall structure provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall structure of the feeding assembly provided in an embodiment of the present invention;

[0021] Figure 4 This is a partially exploded view of the feeding assembly structure provided in an embodiment of the present invention;

[0022] Figure 5 This is a cross-sectional view of the feeding assembly structure provided in an embodiment of the present invention;

[0023] Figure 6 Provided for embodiments of the present invention Figure 5 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 7 This is an exploded view of the toothed ring structure provided in an embodiment of the present invention;

[0025] Figure 8 This is a partial exploded view of the injection tube structure provided in an embodiment of the present invention;

[0026] Figure 9 This is a schematic internal cross-sectional view of the reactor structure provided in an embodiment of the present invention;

[0027] Figure 10 This is an exploded view of the stirring assembly structure provided in an embodiment of the present invention.

[0028] In the diagram: 1. Support frame; 2. Reactor; 3. Drive motor; 4. Feeding assembly; 5. Stirring assembly;

[0029] 41. Injection pipe; 42. First sleeve; 43. First spring; 44. Hollow gear shaft; 45. Second sleeve; 46. First ball plug; 47. Second ball plug; 48. Discharge pipe; 49. Gear ring;

[0030] 411. Raw material box; 412. Connecting pipe; 413. First gear; 414. Second gear; 415. First agitator; 416. Drive belt;

[0031] 441. Second stirring paddle;

[0032] 451. Hollow float plate; 452. Observation rod; 453. First magnetic ring; 454. First limiting plate; 455. Second limiting plate; 456. Second magnetic ring; 457. Push plate;

[0033] 51. First motor; 52. Round tube; 53. Crossbar; 54. Scraper; 55. Third agitator; 56. Third gear; 57. Convex tooth; 58. Tooth rack; 59. Cam groove; 510. Slide rod; 511. Connector; 512. Groove plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0036] like Figures 1 to 6As shown, in one embodiment, an alternating feeding device for chemical production and processing is proposed, including a support 1, a reaction vessel 2, and a drive motor 3. The reaction vessel 2 is fixedly connected to the support 1, and the drive motor 3 is installed on the side wall of the reaction vessel 2. The device also includes:

[0037] The feeding assembly 4 is arranged in a ring on the support 1. The feeding assembly 4 includes a feeding pipe 41 fixedly connected to the upper surface of the support 1. A first sleeve 42 is slidably connected to the outer wall of the feeding pipe 41. A first spring 43 is fixedly connected between the first sleeve 42 and the support 1. A hollow gear shaft 44 is rotatably connected to the top of the first sleeve 42. A second sleeve 45 is rotatably connected to the top of the hollow gear shaft 44. A first ball plug 46 is movably connected to the end of the first sleeve 42 near the hollow gear shaft 44. A second ball plug 47 is movably connected to the end of the second sleeve 45 near the hollow gear shaft 44. A discharge pipe 48 is fixedly connected to the side of the second sleeve 45 near the support 1. The discharge pipe 48 is slidably connected to the top of the reactor 2. A gear ring 49 that meshes with the drive motor 3 is rotatably connected to the outer wall of the reactor 2. The hollow gear shaft 44 is hollow inside and connects the first sleeve 42 and the second sleeve 45.

[0038] The stirring assembly 5 is located inside the reactor 2 to prevent the raw materials from adhering to the inner wall of the reactor 2 and failing to mix thoroughly.

[0039] In practical application, the staff pours different raw materials into the interiors of multiple raw material boxes 411. The raw materials flow from the raw material boxes 411 to the injection pipe 41 through the connecting pipe 412. Then, the staff starts the drive motor 3. During the rotation of the drive motor 3, the push plate 457 on its surface will exert downward pressure on the second sleeve 45 through the second magnetic ring 456. The second sleeve 45 drives the hollow toothed shaft 44 and the first sleeve 42 to move downward together. When the first sleeve 42 moves downward, it slides on the outer wall of the injection pipe 41.

[0040] During initial operation of the equipment, as the first sleeve 42 slides down the outer wall of the injection pipe 41, the first ball plug 46 will block the top of the injection pipe 41 due to air pressure, causing air inside the first sleeve 42 to enter the second sleeve 45 through the hollow gear shaft 44, and then be discharged into the reactor 2 through the discharge pipe 48. When the second sleeve 45 is no longer compressed, the first spring 43 rebounds and pushes the first sleeve 42, the hollow gear shaft 44, and the second sleeve 45 upward. At this time, because... The increased volume of the inner cavity of the second sleeve 45, hollow gear shaft 44, and first sleeve 42 generates negative pressure. The second ball plug 47 moves downward under the action of gravity and blocks the top of the hollow gear shaft 44. At this time, the negative pressure inside the first sleeve 42 will generate negative pressure inside the injection pipe 41, causing the first ball plug 46 to move upward and no longer block the top of the injection pipe 41. The raw material inside the injection pipe 41 will enter the first sleeve 42 due to the negative pressure inside the inner cavity of the first sleeve 42, making the first sleeve 42 full of raw material.

[0041] When the first sleeve 42, the hollow gear shaft 44, and the second sleeve 45 are compressed for the second time, the inner space of the first sleeve 42 shrinks, and the first ball plug 46 blocks the top of the injection pipe 41, so that the raw material inside the first sleeve 42 enters the second sleeve 45 through the hollow gear shaft 44, and is finally discharged into the reactor 2 through the discharge pipe 48.

[0042] When the reactor 2 is running, the heat generated will enter the second sleeve 45 through the discharge pipe 48, thereby preheating the raw material to be discharged from the second sleeve 45, preventing the raw material from solidifying and sticking to the inner wall of the second sleeve 45, so that the raw material has stronger fluidity and higher discharge efficiency when discharged through the discharge pipe 48.

[0043] By rotating the toothed ring 49 once, the push plate 457 presses down on each of the multiple second sleeves 45 once, thus achieving alternating feeding of the multiple second sleeves 45.

[0044] like Figure 6 As shown, in a preferred embodiment of the present invention, the diameter of the first ball plug 46 is equal to the diameter of the hole of the first sleeve 42, the diameter of the second ball plug 47 is equal to the inner diameter of the hollow toothed shaft 44, and the outer wall of the injection tube 41 is tightly fitted with the inner wall of the first sleeve 42.

[0045] like Figure 8 As shown, in a preferred embodiment of the present invention, a raw material box 411 is fixedly connected to the upper surface of the support 1, a connecting pipe 412 communicating with the injection pipe 41 is fixedly connected to the bottom of the raw material box 411, a first gear 413 meshing with a gear ring 49 is rotatably connected to the top of the raw material box 411, a second gear 414 is rotatably connected to the middle of the raw material box 411, a transmission belt 416 is drivingly connected between the second gear 414 and the first gear 413, and a first stirring paddle 415 is fixedly connected to the bottom of the second gear 414.

[0046] In practical application, during the rotation of the gear ring 49, the first gear 413 meshing with the gear ring 49 will rotate together, and drive the second gear 414 to rotate together through the transmission belt 416. When the second gear 414 rotates, the first stirring paddle 415 will stir the raw materials inside the raw material box 411 to prevent the raw materials from sticking inside the raw material box 411. When a negative pressure is generated inside the injection pipe 41, the negative pressure inside the injection pipe 41 will draw the raw materials inside the raw material box 411 through the connecting pipe 412, so that the raw materials can maintain fluidity before being added to the reaction vessel 2, and accelerate the fusion speed of chemical raw materials.

[0047] like Figure 6 As shown, in a preferred embodiment of the present invention, the inner wall of the hollow gear shaft 44 narrows in the middle, and a second stirring paddle 441 is uniformly fixedly connected to the inner wall of the hollow gear shaft 44.

[0048] In practical applications, according to Bernoulli's principle, the hollow toothed shaft 44 narrows in the middle, resulting in a faster flow rate of the raw material. During the rotation of the toothed ring 49, the hollow toothed shaft 44 meshes with and rotates together with it. When the hollow toothed shaft 44 rotates, the raw material is stirred by the second stirring paddle 441 on the inner wall, thereby initially dispersing the residual solid parts in the chemical raw material.

[0049] like Figure 4 , Figure 6 and Figure 7 As shown, in a preferred embodiment of the present invention, an observation rod 452 is slidably connected inside the second sleeve 45, a hollow float plate 451 is fixedly connected to the bottom of the observation rod 452, a first magnetic ring 453 is fixedly connected to the bottom of the hollow float plate 451, a first limiting plate 454 is fixedly connected to the outer wall of the second sleeve 45 above the toothed ring 49, a second limiting plate 455 is fixedly connected to the outer wall of the second sleeve 45 below the first limiting plate 454, a second magnetic ring 456 is slidably connected to the outer wall of the second sleeve 45 between the first limiting plate 454 and the second limiting plate 455, the first magnetic ring 453 and the second magnetic ring 456 have opposite magnetic properties, and a push plate 457 is fixedly connected to the outer wall of the toothed ring 49.

[0050] In practical applications, the hollow float 451 of this invention is hollow inside and has buoyancy.

[0051] When the second sleeve 45 is filled with raw material, the hollow float plate 451 will float above the raw material. At this time, because the first magnetic ring 453 is far away from the second magnetic ring 456, the magnetic force cannot be applied. Therefore, the second magnetic ring 456 will adhere to the upper surface of the second limiting plate 455. When the toothed ring 49 rotates, the horizontal height of the second magnetic ring 456 is lower than that of the push plate 457. Therefore, the lower surface of the push plate 457 will slide against the second magnetic ring 456, and the second sleeve 45 will be pressed downward.

[0052] When the second sleeve 45 is not filled with raw material, the hollow float 451 loses buoyancy, causing the first magnetic ring 453 to adhere to the bottom of the inner cavity of the second sleeve 45. At this time, the vertical height difference between the first magnetic ring 453 and the second magnetic ring 456 is shortened. The first magnetic ring 453 will lift the second magnetic ring 456 upward through magnetic attraction, so that the second magnetic ring 456 slides on the surface of the second sleeve 45 to above the push plate 457. At this time, when the toothed ring 49 drives the push plate 457 to rotate, the push plate 457 no longer contacts the second magnetic ring 456, so it is impossible to make the second sleeve 45 move down. This avoids the problem that when there is no raw material in the second sleeve 45, the equipment will inject air into the support 1, causing positive pressure inside the support 1, which will make it difficult for the raw material to fuse.

[0053] The hollow float 451 drives the observation rod 452 to change the sliding position at the top of the second sleeve 45, allowing the staff to visually detect the lack of raw materials and add them in time. The equipment automatically stops adding materials after the lack of raw materials, which can effectively prevent the equipment from running dry and causing safety hazards.

[0054] like Figure 1 As shown, in a preferred embodiment of the present invention, the push plate 457 is in the shape of an inverted trapezoid. When the push plate 457 is located on the side close to the second sleeve 45, the push plate 457 exerts downward pressure on the second sleeve 45 through the second magnetic ring 456 and the second limiting plate 455.

[0055] like Figure 9 and Figure 10As shown, in a preferred embodiment of the present invention, a first motor 51 is installed on the top of the reactor 2. A circular tube 52 is installed at the output end of the first motor 51. The circular tube 52 is rotatably connected to the inside of the reactor 2. A crossbar 53 is fixedly connected to the outer wall of the circular tube 52. A scraper 54 is fixedly connected to the end of the crossbar 53 away from the circular tube 52. The scraper 54 is in contact with the inside of the reactor 2. A third stirring paddle 55 is rotatably connected to the side of the scraper 54 near the circular tube 52. A toothed rod 58 is rotatably connected to the inside of the circular tube 52. A third gear 56 that meshes with the toothed rod 58 is rotatably connected to the top of the circular tube 52. The third gear 56 meshes with a protruding tooth 57 fixed to the top of the inner cavity of the reactor 2. A slide rod 510 is slidably connected to the inside of the crossbar 53. A cam groove 59 is opened on the toothed rod 58. A connector 511 is rotatably connected between the slide rod 510 and the cam groove 59. A groove plate 512 is fixedly connected to the end of the slide rod 510 located inside the scraper 54.

[0056] In practical application, during the rotation of the circular tube 52 driven by the first motor 51, the scraper 54 will rotate together through the crossbar 53, scraping the raw materials adhering to the inner wall of the reactor 2. When the circular tube 52 drives the third gear 56 to rotate together, the third gear 56 will mesh with the tooth 57 and drive the rack 58 to rotate in the circular tube 52. During the rotation of the rack 58, it will mesh with the third stirring paddle 55 and drive the third stirring paddle 55 to rotate. At this time, the third stirring paddle 55 rotates on its own axis and revolves around the circular tube 52, causing the raw materials inside the reactor 2 to gather towards the center of the reactor 2 during the stirring process, thereby avoiding the raw materials from adhering to the inner wall of the reactor 2 and improving the mixing efficiency.

[0057] During rotation, the rack 58 drives the slide bar 510 to slide back and forth inside the crossbar 53 via the cam groove 59 and the connecting piece 511. When the slide bar 510 slides, it drives the groove plate 512 to press against the inner wall of the reactor 2. Because bubbles are easily generated during the mixing of raw materials, the bubbles easily adhere to the inner wall of the reactor 2 during the mixing process. Furthermore, undissolved solid powder in the raw materials easily adheres to the surface of the bubbles. Through the continuous pressing of the groove plate 512 against the inner wall of the reactor 2, the bubbles adhering to the inner wall of the reactor 2 are broken up, and the clumps of undissolved solid raw materials adhering to the inner wall of the reactor 2 are crushed, thereby making the raw materials more evenly mixed inside the reactor 2.

[0058] like Figure 9 and Figure 10 As shown, in a preferred embodiment of the present invention, the scraper 54 has a toothed groove on its side wall, the groove plate 512 has a uniformly formed transverse groove on its surface, and the connector 511 is eccentrically rotatably connected to the cam groove 59 of the toothed rod 58.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An alternating feeding device for chemical production and processing, comprising a support (1), a reactor (2), and a drive motor (3), wherein the reactor (2) is fixedly connected to the support (1), and the drive motor (3) is mounted on the side wall of the reactor (2), characterized in that, Also includes: The feeding assembly (4) is arranged in a ring on the support (1). The feeding assembly (4) includes an injection tube (41) fixedly connected to the upper surface of the support (1). A first sleeve (42) is slidably connected to the outer wall of the injection tube (41). A first spring (43) is fixedly connected between the first sleeve (42) and the support (1). A hollow gear shaft (44) is rotatably connected to the top of the first sleeve (42). A second sleeve (45) is rotatably connected to the top of the hollow gear shaft (44). The inside of the first sleeve (42) is close to the hollow gear shaft (45). One end of the second sleeve (44) is movably connected to the first ball plug (46), and the second end of the second sleeve (45) near the hollow toothed shaft (44) is movably connected to the second ball plug (47). The second sleeve (45) near the support (1) is fixedly connected to the discharge pipe (48), which is slidably connected to the top of the reactor (2). The outer wall of the reactor (2) is rotatably connected to the toothed ring (49) that meshes with the drive motor (3). The hollow toothed shaft (44) is hollow inside and connects the first sleeve (42) and the second sleeve (45). The stirring assembly (5) is located inside the reactor (2) to prevent the raw materials from adhering to the inner wall of the reactor (2) and thus failing to mix fully; The diameter of the first ball plug (46) is equal to the diameter of the first sleeve (42), the diameter of the second ball plug (47) is equal to the inner diameter of the hollow gear shaft (44), and the outer wall of the injection tube (41) is tightly fitted with the inner wall of the first sleeve (42); The inner wall of the hollow gear shaft (44) narrows in the middle, and a second stirring paddle (441) is uniformly fixedly connected to the inner wall of the hollow gear shaft (44). An observation rod (452) is slidably connected inside the second sleeve (45). A hollow float plate (451) is fixedly connected to the bottom of the observation rod (452). A first magnetic ring (453) is fixedly connected to the bottom of the hollow float plate (451). A first limiting plate (454) is fixedly connected to the outer wall of the second sleeve (45) above the toothed ring (49). A second limiting plate (455) is fixedly connected to the outer wall of the second sleeve (45) below the first limiting plate (454). A second magnetic ring (456) is slidably connected to the outer wall of the second sleeve (45) between the first limiting plate (454) and the second limiting plate (455). The first magnetic ring (453) and the second magnetic ring (456) have opposite magnetic properties. A push plate (457) is fixedly connected to the outer wall of the toothed ring (49). The push plate (457) is in the shape of an inverted trapezoid. When the push plate (457) is located on the side close to the second sleeve (45), the push plate (457) exerts downward pressure on the second sleeve (45) through the second magnetic ring (456) and the second limiting plate (455).

2. The alternating feeding device for chemical production and processing according to claim 1, characterized in that, A raw material box (411) is fixedly connected to the upper surface of the support (1). A connecting pipe (412) connected to the injection pipe (41) is fixedly connected to the bottom of the raw material box (411). A first gear (413) meshing with a gear ring (49) is rotatably connected to the top of the raw material box (411). A second gear (414) is rotatably connected to the middle of the raw material box (411). A transmission belt (416) is connected between the second gear (414) and the first gear (413). A first stirring paddle (415) is fixedly connected to the bottom of the second gear (414).

3. The alternating feeding device for chemical production and processing according to claim 1, characterized in that, A first motor (51) is installed on the top of the reactor (2). A circular tube (52) is installed at the output end of the first motor (51). The circular tube (52) is rotatably connected to the inside of the reactor (2). A crossbar (53) is fixedly connected to the outer wall of the circular tube (52). A scraper (54) is fixedly connected to the end of the crossbar (53) away from the circular tube (52). The scraper (54) is in contact with the inside of the reactor (2). A third stirring paddle (55) is rotatably connected to the side of the scraper (54) near the circular tube (52). The inside of the circular tube (52) rotates... A toothed rod (58) is movably connected to the top of the round tube (52), and a third gear (56) meshes with the toothed rod (58). The third gear (56) meshes with a protruding tooth (57) fixed at the top of the inner cavity of the reactor (2). A slide rod (510) is slidably connected inside the crossbar (53). A cam groove (59) is provided on the toothed rod (58). A connector (511) is rotatably connected between the slide rod (510) and the cam groove (59). A groove plate (512) is fixedly connected to one end of the slide rod (510) inside the scraper (54).

4. The alternating feeding device for chemical production and processing according to claim 3, characterized in that, The scraper (54) has a toothed groove on its side wall, and the groove plate (512) has a horizontal groove evenly distributed on its surface. The connector (511) is eccentrically rotatably connected to the cam groove (59) of the toothed rod (58).

Images