A multi-tube feeding structure for chemical reactor

Abstract

The present invention relates to the field of chemical technology, specifically a multi-tube feeding structure for a chemical reactor, comprising a mounting plate, a docking plate and a feeding mechanism. In the present invention, the corresponding adapter material control plate is selected according to the material diameter of the material to be fed for corresponding assembly, and the corresponding material control plate is switched to be opposite to the corresponding material during the feeding process, and the actual feeding amount of the overall material is controlled through the material control process of the material control plate and the material control ring, so as to avoid the excessive actual feeding amount of small particle materials affecting the subsequent mixing process, thereby improving the mixing uniformity between the subsequent multiple materials. Secondly, the disassembly assembly method not only adapts to the feeding process of different materials, but also improves the convenience and practicality of the feeding structure, and the sealing barrel can not only seal the guide sleeve and the corresponding pipeline, but also the feeding holes on the material control plate corresponding to the remaining sealing barrel cooperate with the cleaning strips during the docking feeding to clean the material control plate to avoid blockage.

Description

Technical Field

[0001] The invention relates to the technical field of chemical engineering, in particular to a multi-tube feeding structure for a chemical reactor. Background Art

[0002] Chemical reactors are core equipment for various chemical reactions in the chemical industry. They usually involve chemical reaction processes of different materials. Various materials are added into the reactor through the feed pipe and physically stirred, and finally chemical reactions occur between the various materials.

[0003] During the feeding process, especially for the feeding process of various granular materials, it is currently common to connect multiple external feed pipes to the feed pipe of the reactor at the same time, and use a feeding pump to transport the corresponding materials to the reactor through the feed pipe and the feed pipe. The feeding process of all materials is completed through the same feed pipe in a sequential manner, and the feeding amount of the materials is controlled by controlling the feeding time of the feeding pump.

[0004] The following problems exist in the above-mentioned multiple material feeding process: in the process of conveying and feeding materials of different diameters through the feeding pipe of the same diameter, no targeted limitation is made for the particle materials of different diameters, so that when feeding through the feeding pipe of the same diameter, the actual feeding volumes of different materials vary greatly. Specifically, when feeding in the same pipe cross-sectional area, the gaps between small particle materials are small, and the gaps between large particle materials are large, that is, the actual occupied volume of small particle materials in the unit volume of the pipe is greater than the actual occupied volume of large particle materials. Therefore, on the basis of adopting the existing feeding method, the feeding time of the feeding pump is controlled to control the feeding amount, which easily leads to excessive actual feeding volume of small particle materials, affecting the subsequent mixing uniformity between multiple materials and affecting the overall chemical reaction process. Summary of the Invention

[0005] Based on this, it is necessary to provide a multi-tube feeding structure for a chemical reactor, aiming to solve the above-mentioned problems of the prior art.

[0006] The present application provides a multi-tube feeding structure for a chemical reactor, which is arranged on the reactor and docked with the feed pipe of the reactor, comprising: a mounting plate, a docking portion for locking the mounting plate is provided between the mounting plate and the reactor, a rotating shaft with an axis extending from left to right is rotatably provided on the mounting plate, a docking plate is movably sleeved on the rotating shaft, and a feeding mechanism is provided on both the docking plate and the mounting plate.

[0007] The feeding mechanism includes a feeding port, a plurality of circumferentially distributed feeding ports are opened on the docking plate, a plurality of circumferentially distributed through ports are opened on the mounting plate, the uppermost through port is docked with the feeding pipe, and all the feeding ports are provided with a material control part for controlling the uniformity of material feeding.

[0008] The material control part includes a material control plate, which is arranged in the feed port and has feed holes. The diameters of the feed holes on different material control plates are different, and the larger the diameter of the feed hole, the fewer the number of feed holes.

[0009] The docking plate is provided with a docking unit for guiding the feed inlet to dock with the uppermost through-port, and the docking unit includes a cleaning group. When one of the feed inlets is docked with the uppermost through-port, the cleaning group cleans the control plates in the remaining feed inlets.

[0010] According to a favorable embodiment, the docking portion includes a docking frame, and the right end face of the mounting plate is equipped with a docking frame for locking the flange on the feed pipe and the mounting plate. The docking process between the uppermost through-hole on the mounting plate and the feed pipe is completed by installing the docking frame.

[0011] According to a favorable embodiment, a ring frame is fixedly provided on the left end face of the mounting plate, the inner arc surface of the ring frame is in close contact with the docking plate, and a guide circular sleeve corresponding to the material control plate is provided on the right end face of the docking plate. In order to guide the guide circular sleeve to be inserted into the through-port, the left inner wall of the through-port is chamfered, and the docking plate is slidably sleeved left and right on the rotating shaft.

[0012] According to a favorable embodiment, the left and right sliding sleeves on the rotating shaft are provided with fitting plates, the guide circular sleeve slides through the fitting plates, a compression spring sleeved on the rotating shaft is fixedly provided between the fitting plates and the docking plate, a clamping circular sleeve is fixedly provided on the right end face of the docking plate, and the rotating shaft and the compression spring penetrate the clamping circular sleeve.

[0013] According to a favorable embodiment, a rubber ring corresponding to the guide sleeve is fixedly provided on the right end face of the bonding plate, and the sealing effect is enhanced by the rubber ring being tightly attached to the chamfer of the through-hole when the bonding plate is pressed against the mounting plate.

[0014] According to a preferred embodiment, the material control portion further comprises L-shaped grooves. A groove group corresponding to each feed opening is defined on the right end surface of the docking plate. The groove group comprises multiple L-shaped grooves evenly distributed circumferentially. A mounting block is fixedly mounted on the circumferential surface of the material control plate. A material control ring for controlling the size of the feed opening is fixedly mounted on the left end surface of the material control plate. The guide sleeve is fixedly mounted on the right end surface of the corresponding material control plate via multiple circumferentially distributed connecting brackets.

[0015] According to an advantageous embodiment, the annular area of ​​the material control ring is in the shape of a truncated cone with a smaller left side and a larger right side, and the larger the diameter of the feed hole on the material control plate corresponding to the material control ring, the larger the diameter of the left end of the annular area of ​​the material control ring.

[0016] According to a favorable embodiment, a sealing barrel fixedly mounted on a mounting plate is provided on the left side of each of the remaining feed ports except the feed port on the uppermost side, and the sealing barrel is connected to the corresponding feed port. The guide sleeve that is not in the feeding process is inserted into the corresponding feed port during feeding to avoid and perform subsequent cleaning operations.

[0017] According to a favorable embodiment, the cleaning group includes a mounting plate, which is fixedly mounted on the lateral inner wall of the tube sealing barrel, and a plurality of rubber cleaning strips are fixedly provided on the mounting plate. The distribution of all cleaning strips on the mounting plate is the same as the distribution of the feed port on the corresponding material control plate. When the guide sleeve corresponding to the material control plate is rotated to be opposite to the corresponding tube sealing barrel and inserted into the tube sealing barrel, the material control plate is cleaned and prevented from being blocked by the cleaning strips.

[0018] In summary, the present invention includes at least one of the following beneficial effects: in the present invention, the corresponding adapter control plate is selected according to the material diameter of the fed material for corresponding assembly, and the corresponding control plate is switched to be opposite to the corresponding material during the feeding process, and the actual feeding amount of the overall material is controlled through the material control process of the control plate and the control ring, thereby avoiding excessive actual feeding amount of small particle materials affecting the subsequent mixing process, and improving the mixing uniformity between subsequent multiple materials. Secondly, the disassembly assembly method not only adapts to the feeding process of different materials, but also improves the practicality of the feeding structure, and the sealing barrel can not only seal the guide sleeve and the corresponding pipeline, but also the feeding holes on the corresponding control plate of the remaining sealing barrel cooperate with the cleaning strips during docking feeding to clean the control plate to avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 A first three-dimensional structural schematic diagram of a multi-tube feeding structure of a chemical reactor provided according to an embodiment of the present invention is shown.

[0021] Figure 2 A partially cutaway perspective diagram of a multi-tube feeding structure for a chemical reactor provided according to an embodiment of the present invention is shown.

[0022] Figure 3 A partially sectional front view of a multi-tube feeding structure of a chemical reactor provided according to an embodiment of the present invention is shown.

[0023] Figure 4A schematic diagram of a partially cutaway three-dimensional structure between a mounting plate, a docking plate, and a guide sleeve provided according to an embodiment of the present invention is shown.

[0024] Figure 5 A partial exploded cross-sectional view of the docking plate, the material control plate and the guide sleeve provided according to an embodiment of the present invention is shown.

[0025] Figure 6 A right side schematic diagram of a docking tray and a mounting tray provided according to an embodiment of the present invention is shown.

[0026] Among them, the above-mentioned drawings include the following figure marks: 1. Mounting plate; 2. Docking part; 20. Bolt; 21. Docking frame; 3. Rotating shaft; 4. Docking plate; 5. Feeding mechanism; 50. Feeding port; 51. Through-hole; 52. Material control part; 520. Material control plate; 521. Feeding hole; 522. L-shaped groove; 523. Mounting block; 524. Material control ring; 53. Docking unit; 530. Cleaning group; 5300. Mounting plate; 5301. Cleaning strip; 531. Sealing barrel; 54. Ring frame; 55. Guide sleeve; 56. Laminating plate; 560. Rubber ring; 57. Compression spring; 58. Tightening sleeve. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] like Figure 1 and Figure 2 As shown, a multi-tube feeding structure of a chemical reactor is arranged on the reactor and docked with the feed pipe of the reactor, comprising: a mounting plate 1, a docking portion 2 for locking the mounting plate 1 is provided between the mounting plate 1 and the reactor, a rotating shaft 3 with an axis extending from left to right is rotatably provided on the mounting plate 1, a docking plate 4 is movably sleeved on the rotating shaft 3, and a feeding mechanism 5 is jointly provided on the docking plate 4 and the mounting plate 1.

[0029] like Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, the feeding mechanism 5 includes a feeding port 50, and a plurality of circumferentially distributed feeding ports 50 are provided on the docking plate 4. All the feeding ports 50 are connected to an existing external feeding pump (not shown in the figure) through corresponding pipelines. The corresponding materials are sequentially transported into the reactor for mixing through the feeding pump. A plurality of circumferentially distributed through-ports 51 are provided on the mounting plate 1, and the uppermost through-port 51 is docked with the feeding pipe. A material control portion 52 for controlling the uniformity of material feeding is provided in all the feeding ports 50.

[0030] like Figure 4 、 Figure 5 and Figure 6 As shown, the material control part 52 includes a material control plate 520, and a material control plate 520 is arranged in the feed port 50. The material control plate 520 is provided with feed holes 521. The diameters of the feed holes 521 on different material control plates 520 are different, and the number of feed holes 521 with larger diameters is smaller.

[0031] like Figure 2 、 Figure 4 and Figure 6 As shown, the docking plate 4 is provided with a docking unit 53 for guiding the feed inlet 50 to dock with the uppermost through-port 51. The docking unit 53 includes a cleaning group 530. When one of the feed inlets 50 docks with the uppermost through-port 51, the cleaning group 530 cleans the control plate 520 in the remaining feed inlet 50.

[0032] During operation, the mounting plate 1 is mounted on the feed pipe of the reactor through the docking portion 2, and then the corresponding pipe of the material is connected to the corresponding feed port 50 on the docking plate 4 (all of which are bolted) according to the diameter of the material to be fed into the reactor. Thus, the assembly process of the feed structure is completed. Then, during the feeding process, when the corresponding pipe is opposite to the uppermost through-port 51, the pipe is in a state of waiting for feeding, and the remaining pipes are in a resting state. The pipe is docked with the uppermost through-port 51 through the docking unit 53, so The corresponding material control plate 520 is connected to the feed flow path. At this time, the corresponding external feeding pump works to allow the material to enter the feed pipe through the feed hole 521 on the material control plate 520 and the uppermost through-hole 51, and finally enter the reactor to complete the feeding action. Afterwards, the corresponding pipeline is switched by rotating the rotating shaft 3 and the docking plate 4 according to the feeding order of the required materials, so that the corresponding pipeline is connected to the uppermost through-hole 51, and the feeding action is repeated. At this point, a multi-tube sequential feeding process of multiple different materials at the feed pipe is carried out through a multi-tube switching method.

[0033] It should be noted that in the above process, the feeding process of materials with different diameters is adapted by the material control plate 520, that is, the feeding process of materials with corresponding diameters is limited by the feeding holes 521 with corresponding aperture sizes, so as to avoid the problem of excessive feeding amount of small-diameter materials affecting the subsequent material mixing uniformity, and assist the multi-tube feeding process of different materials.

[0034] like Figure 1 、 Figure 2 and Figure 3 As shown, the docking portion 2 includes bolts 20. A plurality of axially distributed bolts 20 are fixedly provided on the right end surface of the mounting plate 1. The bolts 20 pass through the mounting holes of the upper flange of the feed pipe. A docking frame 21 is installed on some of the bolts 20. The docking frame 21 is located on the right side of the upper flange of the feed pipe. Nuts are threadedly installed on the bolts 20. The docking frame 21 and the reactor are also connected by bolts 20.

[0035] In the process of connecting the feeding mechanism 5 to the reactor, first, the bolt 20 on the mounting plate 1 is passed through the mounting hole of the upper flange of the feed pipe, and then the docking frame 21 is clamped to the right side of the upper flange of the feed pipe, and the docking frame 21 and the mounting plate 1 are tightened by tightening the nut. At this point, the docking between the mounting plate 1 and the feed pipe is completed, and the uppermost through-hole 51 is connected to the inside of the feed pipe. Secondly, it should be noted that the docking strength between the mounting plate 1 and the feed pipe is improved by the docking frame 21, thereby ensuring the stability of the subsequent switching multi-tube feeding process.

[0036] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the left end face of the mounting plate 1 is fixedly provided with an annular frame 54, the inner arc surface of the annular frame 54 is in close contact with the docking plate 4, and the right end face of the docking plate 4 is provided with a guide sleeve 55 corresponding to the material control plate 520. In order to guide the guide sleeve 55 to be inserted into the through-hole 51, the left inner wall of the through-hole 51 is chamfered, and the docking plate 4 is driven by an external hydraulic cylinder to move left and right (not shown in the figure), and the docking plate 4 is slidably sleeved on the rotating shaft 3 left and right, and the right end of the rotating shaft 3 is connected to the external motor (not shown in the figure).

[0037] like Figure 3 and Figure 4As shown, the left and right sliding sleeves on the rotating shaft 3 are provided with fitting plates 56, and the guide circular sleeve 55 slides through the fitting plate 56. A rubber ring 560 corresponding to the guide circular sleeve 55 is fixedly provided on the right end surface of the fitting plate 56. When the fitting plate 56 presses the mounting plate 1, the sealing effect is enhanced by the rubber ring 560 being close to the chamfer of the through-opening 51. A compression spring 57 sleeved on the rotating shaft 3 is fixedly provided between the fitting plate 56 and the docking plate 4. A compression circular sleeve 58 is fixedly provided on the right end surface of the docking plate 4. The rotating shaft 3 and the compression spring 57 pass through the compression circular sleeve 58.

[0038] like Figure 4 and Figure 5 As shown, the material control portion 52 also includes an L-shaped groove 522, and the right end face of the docking plate 4 is provided with a groove group corresponding to the feed port 50, and the groove group includes a plurality of L-shaped grooves 522 uniformly distributed circumferentially. The circumferential surface of the material control plate 520 is fixedly provided with a mounting block 523, and the left end face of the material control plate 520 is fixedly provided with a material control ring 524 for controlling the size of the feed port 50, and the guide sleeve 55 is fixedly provided on the right end face of the corresponding material control plate 520 through a plurality of circumferentially distributed connecting frames.

[0039] like Figure 4 and Figure 6 As shown, the annular area of ​​the material control ring 524 is a frustum shape with a smaller left side and a larger right side, and the larger the diameter of the feed hole 521 on the material control plate 520 corresponding to the material control ring 524 is, the larger the diameter of the left end of the annular area of ​​the material control ring 524 is, thereby controlling the size of the cross-section of the feed area.

[0040] Before installing the mounting plate 1 onto the feed pipe, the external hydraulic cylinder operates to move the docking plate 4 to the left, so that the docking plate 4 exits the annular area of ​​the annular frame 54. Then, the corresponding material control plate 520 and material control ring 524 are manually selected according to the material corresponding to the pipeline, and the material control plate 520, material control ring 524 and guide sleeve 55 are installed to the corresponding feed port 50. The specific installation method is as follows: manually hold the guide sleeve 55 and make the material control plate 520 and material control ring 524 enter the feed port 50, and the mounting block 523 gradually enters the left bottom of the L-shaped groove 522 from right to left along the horizontal section of the L-shaped groove 522, and then rotate the guide sleeve 55 so that the mounting block 523 is clamped in the circumferential section of the L-shaped groove 522. At this point, the rotation clamping process of the material control plate 520 is completed. After the installation is completed, the external hydraulic cylinder operates to move the docking plate 4 to the right and reset.

[0041] As the docking disc 4 continues to move right, the docking disc 4 drives the bonding plate 56 thereon to contact the left end surface of the mounting disc 1, and as the docking disc 4 continues to move right, the compression spring 57 is compressed, and the elastic force generated by the compression of the compression spring 57 makes the bonding plate 56 close to the right end surface of the mounting disc 1. In this state, the right side of the guide sleeve 55 is flush with the right side of the bonding plate 56. This state is the standby state, and then the external motor starts to drive the rotating shaft 3 to rotate, and the rotating shaft 3 drives the mounting disc 1 and the guide sleeve 55 to rotate synchronously. The guide sleeve 55 and the material control plate 520 are moved to adjust the circumferential position of the guide sleeve 55 and the material control plate 520. When the guide sleeve 55 corresponding to the pipeline to be fed is opposite to the uppermost through-hole 51, the external motor stops working and the external hydraulic cylinder works to move the docking plate 4 to the right, and the guide sleeve 55 is inserted into the uppermost through-hole 51. At this point, the pipeline corresponding to the material is connected with the feed pipe through the corresponding feed port 50 and the guide sleeve 55. In the above process, the guide sleeve 55 not only plays a connecting role, but also guides the docking process.

[0042] Afterwards, as the external hydraulic cylinder continues to operate, the docking plate 4 continues to move to the right, and finally the docking plate 4 drives the tightening sleeve 58 on it to press the bonding plate 56. At this time, the bonding plate 56 is rigidly pressed onto the mounting plate 1. In the process of the bonding plate 56 being attached to the mounting plate 1 and being rigidly pressed, the rubber ring 560 is compressed and deformed, thereby improving the tightness of the docking between the bonding plate 56, the guide sleeve 55 and the through-hole 51, and avoiding leakage problems during the switching process.

[0043] At this point, the material feeding process begins. After completing the feeding operation of this material, the external hydraulic cylinder works to reset the bonding plate 56 and the guide sleeve 55 to the standby state, and the external motor works to switch the guide sleeve 55 corresponding to another material for docking. The above process is repeated to carry out the feeding process of this material. In summary, the above process is repeated multiple times to carry out multi-tube feeding operations of multiple materials.

[0044] In addition, it should be noted that during the feeding process, the feed hole 521 on the control plate 520 controls the diameter of the feed, and the corresponding annular area size of the control ring 524 corresponds to the size of the cross-section of the feed area, that is, before installation, the control plate 520 and the control ring 524 of appropriate sizes are selected according to the diameter of the material to be fed, so as to adapt to the feeding process of different diameters, so that the feeding amount of large-diameter material and small-diameter material per unit time is more balanced, avoiding the excessive feeding amount of small-diameter material affecting the subsequent material mixing uniformity, and secondly, the convenience and practicality of the feeding structure are improved by the above-mentioned disassembly assembly method.

[0045] like Figure 3 and Figure 5As shown, except for the feed port 50 on the uppermost side, the left sides of the remaining feed ports 50 are all provided with sealing barrels 531 fixedly set on the mounting plate 1. The sealing barrels 531 are connected to the corresponding feed ports 50. The guide sleeves 55 that are not feeding are inserted into the corresponding feed ports 50 for avoidance and subsequent cleaning operations during feeding.

[0046] like Figure 4 and Figure 6 As shown, the cleaning assembly 530 includes a mounting plate 5300 fixedly mounted on the lateral inner wall of the tube sealing barrel 531. A plurality of rubber cleaning strips 5301 are fixedly mounted on the mounting plate 5300. The distribution of all cleaning strips 5301 on the mounting plate 5300 matches the distribution of the corresponding feed holes 521 on the material control plate 520. When the corresponding guide sleeve 55 of the material control plate 520 is rotated to face the corresponding tube sealing barrel 531 and inserted into the sealing barrel 531, the cleaning strips 5301 clean and prevent blockage on the material control plate 520. When the feed holes 521 on the material control plate 520 corresponding to the guide sleeve 55 rotated to face the tube sealing barrel 531 do not correspond to the cleaning strips 5301, the cleaning strips 5301 deform under the pressure of the material control plate 520 and do not affect the horizontal movement of the guide sleeve 55.

[0047] During the process of inserting the uppermost guide sleeve 55 into the uppermost through-opening 51, the remaining guide sleeves 55 synchronously enter the remaining corresponding through-openings 51, and this part of the guide sleeves 55 enters the corresponding sealing barrel 531 through the corresponding through-opening 51, sealing the guide sleeve 55 and the corresponding pipeline to prevent the material remaining in the guide sleeve 55 and the pipeline from flowing out. Secondly, when this part of the guide sleeve 55 moves into the corresponding sealing barrel 531 (at this time, the feed hole 521 on the material control plate 520 corresponding to the guide sleeve 55 corresponds to the cleaning strip 5301 in the sealing barrel 531), the feed hole 521 on the remaining material control plate 520 cooperates with the cleaning strip 5301 to clean the material control plate 520 while docking and feeding. Avoid blockage problems.

[0048] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0049] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0050] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-tube feeding structure for a chemical reactor, which is arranged on the reactor and docked with the feeding pipe of the reactor, characterized in that: include: A mounting plate, wherein a docking portion for locking the mounting plate is provided between the mounting plate and the reactor, a rotating shaft with an axis extending from left to right is rotatably provided on the mounting plate, a docking plate is movably sleeved on the rotating shaft, and a feeding mechanism is provided on both the docking plate and the mounting plate; The feeding mechanism includes a feeding port, a plurality of circumferentially distributed feeding ports are opened on the docking plate, a plurality of circumferentially distributed through-ports are opened on the mounting plate, the uppermost through-port is docked with the feeding pipe, and a material control part for controlling the uniformity of material feeding is provided in all the feeding ports; The material control part includes a material control plate, which is arranged in the feed port, and the material control plate is provided with feed holes. The diameters of the feed holes on different material control plates are different, and the larger the diameter of the feed hole, the fewer the number of feed holes. The docking plate is provided with a docking unit for guiding the feed inlet to dock with the uppermost through-port, and the docking unit includes a cleaning group. When one of the feed inlets is docked with the uppermost through-port, the cleaning group cleans the control plates in the remaining feed inlets; The material control portion also includes an L-shaped groove. The right end surface of the docking plate is provided with a groove group corresponding to the feed opening. The groove group includes multiple L-shaped grooves evenly distributed circumferentially. A mounting block is fixedly provided on the circumferential surface of the material control plate. A material control ring for controlling the size of the feed opening is fixedly provided on the left end surface of the material control plate. The annular area of ​​the material control ring is in the shape of a truncated cone with a smaller left side and a larger right side. The larger the diameter of the feed hole on the material control plate corresponding to the material control ring is, the larger the diameter of the left end of the annular area of ​​the material control ring is. The right end face of the docking plate is provided with a guide circular sleeve corresponding to the material control plate one by one. Except for the feed port mentioned on the uppermost side, the left side of the remaining feed ports are provided with a sealing barrel fixedly set on the mounting plate. The sealing barrel is connected to the corresponding feed port. The guide circular sleeve that is not in the feeding process is inserted into the corresponding feed port for avoidance and cleaning operations during feeding.

2. A multi-tube feeding structure for a chemical reactor according to claim 1, characterized in that: The docking portion includes a docking frame, and the right end face of the mounting plate is equipped with a docking frame for locking the upper flange of the feed pipe and the mounting plate. The docking process between the uppermost through-hole on the mounting plate and the feed pipe is completed by installing the docking frame.

3. The multi-tube feeding structure of a chemical reactor according to claim 1, characterized in that: An annular frame is fixedly provided on the left end face of the mounting plate, and the inner arc surface of the annular frame is in close contact with the docking plate. In order to guide the guide sleeve to be inserted into the through-hole, the left inner wall of the through-hole is chamfered, and the docking plate is slidably sleeved on the rotating shaft left and right.

4. A multi-tube feeding structure for a chemical reactor according to claim 3, characterized in that: The left and right sliding sleeves on the rotating shaft are provided with fitting plates, the guide circular sleeve slides through the fitting plates, a compression spring sleeved on the rotating shaft is fixedly provided between the fitting plates and the docking plate, a clamping circular sleeve is fixedly provided on the right end face of the docking plate, and the rotating shaft and the compression spring penetrate the clamping circular sleeve.

5. A multi-tube feeding structure for a chemical reactor according to claim 4, characterized in that: A rubber ring corresponding to the guide sleeve is fixedly provided on the right end surface of the bonding plate. When the bonding plate is pressed against the mounting plate, the rubber ring is tightly attached to the chamfer of the through-opening to enhance the sealing effect.

6. The multi-tube feeding structure of a chemical reactor according to claim 1, characterized in that: The cleaning group includes a mounting plate, which is fixedly mounted on the lateral inner wall of the tube sealing barrel. A plurality of rubber cleaning strips are fixedly arranged on the mounting plate. The distribution of the cleaning strips on the mounting plate is the same as the distribution of the feed port on the corresponding material control plate. When the guide sleeve corresponding to the material control plate rotates to be opposite to the corresponding tube sealing barrel and inserted into the tube sealing barrel, the material control plate is cleaned by the cleaning strips.

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