Acid regeneration fluidized bed process seed manufacturing device and manufacturing method

Abstract

The invention relates to the technical field of acid regeneration fluidized bed process seed manufacturing, in particular to an acid regeneration fluidized bed process seed manufacturing device and method. A main pipeline is connected to a coarse material bin, a main pipeline pneumatic valve is installed on the main pipeline, a branch pipeline is connected to a vibrating screen, a branch pipeline pneumatic valve is installed on the branch pipeline, fine materials meeting requirements after being screened by the vibrating screen directly enter a seed bin through a fine material pipeline of the vibrating screen, and coarse materials not meeting the requirements are conveyed to a coarse material pipeline of the vibrating screen. If the grinding machine does not need to supplement the seeds, the coarse materials are directly conveyed to a coarse material bin, if the grinding machine needs to supplement the seeds, the coarse materials are conveyed to the grinding machine to be ground, and the grinding machine is responsible for further grinding the oversize particles till the particle size is qualified and then the oversize particles enter a seed bin through a fine material pipeline of the grinding machine. After iron oxide ball raw materials are screened, fine materials meeting requirements are directly used as seeds, coarse materials are fed into the grinding machine as required to be ground to prepare the seeds, the problem of waste of ultrafine powder in seed manufacturing is solved, and the preparation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of acid regeneration fluidized bed process seed manufacturing, and in particular to an acid regeneration fluidized bed process seed manufacturing device and a manufacturing method. Background Art

[0002] The acid regeneration fluidized bed process requires that the iron oxide balls be prepared into seeds with smaller particle sizes to facilitate subsequent production. In the prior art, generally, the iron oxide ball seeds that meet the requirements are prepared by directly grinding them according to the size requirements through a grinding machine. However, the actual situation is that the iron oxide ball raw materials are distributed according to particle size, and some of the particles have reached the particle size requirements of the seeds. In the process of preparing seeds in the prior art, the particles that have reached the particle size requirements will be further ground to further reduce the particle size, resulting in an increase in the content of ultrafine powder in the seeds, which affects the subsequent production. In addition, in order to meet the preparation needs of the seeds, the grinding machine has a long continuous working time and a high failure rate, which leads to a decrease in the preparation efficiency of the iron oxide ball seeds. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in view of the shortcomings of the prior art, an acid regeneration fluidized bed process seed manufacturing device and a manufacturing method are provided, which can effectively solve the problem of ultrafine powder waste in the iron oxide ball seed manufacturing process and improve the seed preparation efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] 1. A kind of seed manufacturing device of acid regeneration fluidized bed process

[0006] The present invention provides an acid regeneration fluidized bed process seed manufacturing device, which mainly comprises: an iron oxide ball main pipeline 1, a main pipeline pneumatic valve 2, an iron oxide ball branch pipeline 3, a branch pipeline pneumatic valve 4, a vibrating screen 5, a vibrating screen coarse material pipeline 6, a coarse material pipeline pneumatic valve 7, a milling machine pipeline 8, a milling machine pipeline pneumatic valve 9, a milling machine 10, a vibrating screen fine material pipeline 11, a coarse material bin 12 and a seed bin 13;

[0007] The main pipeline 1 is connected to the coarse material bin 12, the main pipeline pneumatic valve 2 is installed on the main pipeline 1, one end of the branch pipeline 3 is connected to the main pipeline 1, and the other end is connected to the vibrating screen 5, and the branch pipeline pneumatic valve 4 is installed on the branch pipeline 3;

[0008] The fine material outlet of the vibrating screen 5 is connected to the seed bin 13 through the vibrating screen fine material pipeline 11, and the coarse material outlet of the vibrating screen 5 is connected to the coarse material bin 12 through the vibrating screen coarse material pipeline 6, and the middle part of the vibrating screen coarse material pipeline 6 is connected to the feed pipeline of the mill 10 through the mill pipeline 8, and the discharge pipeline of the mill 10 is connected to the seed bin 13, and the vibrating screen coarse material pipeline 6 is installed with a coarse material pipeline pneumatic valve 7, and the mill pipeline 8 is installed with a mill pipeline pneumatic valve 9;

[0009] The main pipeline pneumatic valve 2, the branch pipeline pneumatic valve 4, the coarse material pipeline pneumatic valve 7, the mill pipeline pneumatic valve 9, the vibrating screen 5 and the mill 10 are all electrically connected to the device controller.

[0010] Furthermore, the main pipeline 1 adopts a wear-resistant steel pipe, one end of which is connected to the discharge end of the fluidized bed iron oxide balls, and the other end is connected to the coarse material bin 12; the main pipeline pneumatic valve 2 is installed on the main pipeline 1 through a flange, and is located below the connection point between the main pipeline 1 and the branch pipeline 3.

[0011] Furthermore, the branch pipeline 3 is made of a wear-resistant steel pipe, one end of which is fixedly connected to the main pipeline 1 by welding, and the other end is connected to the feed port of the vibrating screen 5. The branch pipeline pneumatic valve 4 is installed on the branch pipeline 3 through a flange.

[0012] Furthermore, the vibrating screen 5 is specifically a stainless steel rotary vibration screening machine, which is provided with a particle size recognition module, a screening size adjustment mechanism and a screening execution mechanism.

[0013] Further, the connection is fixed, and the other end is connected to the seed bin 13 by a connecting bolt.

[0014] Furthermore, the coarse material pipeline 6 of the vibrating screen is made of a wear-resistant steel pipe, and the coarse material pipeline pneumatic valve 7 is installed on the coarse material pipeline 6 of the vibrating screen at one end close to the pipeline outlet through a flange.

[0015] Furthermore, the mill pipeline 8 is made of wear-resistant steel pipe, one end of which is fixedly connected to the vibrating screen coarse material pipeline 6 by welding, and the connection point is located between the coarse material outlet of the vibrating screen 5 and the coarse material pipeline pneumatic valve 7, and the other end is fixedly connected to the feed pipeline of the mill 10 by welding; the mill pipeline pneumatic valve 9 is installed on the mill pipeline 8 through a flange.

[0016] Furthermore, the mill 10 is specifically a double-roll mill, and the double-roll material is subjected to 20Cr surface carburizing treatment. The feed pipe of the mill 10 is connected to the mill pipe pneumatic valve 9, and the discharge pipe of the mill 10 is connected to the seed bin 13.

[0017] 2. A method for producing seeds using an acid regeneration fluidized bed process

[0018] Based on the same inventive concept, the present invention also provides a method for manufacturing seeds in an acid regeneration fluidized bed process, based on the above-mentioned acid regeneration fluidized bed process seed manufacturing device, specifically comprising the following steps:

[0019] S1, the controller receives a seed preparation start instruction;

[0020] S2, close the main pipeline pneumatic valve on the main pipeline, and open the branch pipeline pneumatic valve on the branch pipeline, so that the iron oxide ball raw material is transported to the vibrating screen through the branch pipeline;

[0021] S3, the vibrating screen executes a preset screening program, transports fine materials that meet the particle size requirements to the seed bin through the vibrating screen fine material pipeline, and transports coarse materials that do not meet the requirements to the vibrating screen coarse material pipeline;

[0022] S4, according to the process requirements, determine whether the mill needs to add seeds. If not, open the pneumatic valve of the coarse material pipeline and close the pneumatic valve of the mill pipeline to transport the coarse material directly to the coarse material bin; if yes, close the pneumatic valve of the coarse material pipeline and open the pneumatic valve of the mill pipeline to transport the coarse material to the fine material bin after being ground by the mill and qualified.

[0023] Furthermore, the particle size screening size of the vibrating screen can be adjusted in real time according to process requirements.

[0024] Compared with the prior art, the present invention has the following main advantages:

[0025] The main pipeline of the present invention is connected to the coarse material bin, the pneumatic valve of the main pipeline is installed on the main pipeline, the branch pipeline is connected to the vibrating screen, and the pneumatic valve of the branch pipe is installed on the branch pipe. After screening by the vibrating screen, the fine material that meets the requirements directly enters the seed bin through the fine material pipeline of the vibrating screen, and the coarse material that does not meet the requirements is transported to the coarse material pipeline of the vibrating screen. According to the process requirements, if the mill is not needed to replenish seeds, it is directly transported to the coarse material bin. If the mill is needed to replenish seeds, the coarse material is transported to the mill for grinding. The mill is responsible for further grinding the particles on the screen to a qualified particle size and then entering the seed bin through the fine material pipeline of the mill. The present invention solves the problem of waste of ultrafine powder in seed manufacturing and improves the preparation efficiency by screening the iron oxide ball raw material, directly using the fine material that meets the requirements as seeds, and feeding the coarse material into the mill for grinding as required to prepare seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the seed manufacturing device of the acid regeneration fluidized bed process in an embodiment of the present invention;

[0027] Figure 2 The present invention is a flowchart of the method for manufacturing seeds in the acid regeneration fluidized bed process according to an embodiment of the present invention.

[0028] In the figure: 1-main pipeline, 2-main pipeline pneumatic valve, 3-branch pipeline, 4-branch pipeline pneumatic valve, 5-vibrating screen, 6-vibrating screen coarse material pipeline, 7-coarse material pipeline pneumatic valve, 8-mill pipeline, 9-mill pipeline pneumatic valve, 10-mill, 11-vibrating screen fine material pipeline, 12-coarse material bin, 13-seed bin. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0031] Embodiment 1: This embodiment provides an acid regeneration fluidized bed process seed manufacturing device, such as Figure 1 As shown, it mainly includes: a main pipeline 1, a main pipeline pneumatic valve 2, a branch pipeline 3, a branch pipeline pneumatic valve 4, a vibrating screen 5, a vibrating screen coarse material pipeline 6, a coarse material pipeline pneumatic valve 7, a mill pipeline 8, a mill pipeline pneumatic valve 9, a mill 10, a vibrating screen fine material pipeline 11, a coarse material bin 12 and a seed bin 13;

[0032] The main pipeline 1 is connected to the coarse material bin 12, the main pipeline pneumatic valve 2 is installed on the main pipeline 1, one end of the branch pipeline 3 is connected to the main pipeline 1, and the other end is connected to the vibrating screen 5, and the branch pipeline pneumatic valve 4 is installed on the branch pipeline 3;

[0033] The fine material outlet of the vibrating screen 5 is connected to the seed bin 13 through the vibrating screen fine material pipeline 11, and the coarse material outlet of the vibrating screen 5 is connected to the coarse material bin 12 through the vibrating screen coarse material pipeline 6, and the middle part of the vibrating screen coarse material pipeline 6 is connected to the feed pipeline of the mill 10 through the mill pipeline 8, and the discharge pipeline of the mill 10 is connected to the seed bin 13, and the vibrating screen coarse material pipeline 6 is installed with a coarse material pipeline pneumatic valve 7, and the mill pipeline 8 is installed with a mill pipeline pneumatic valve 9;

[0034] The main pipeline pneumatic valve 2, the branch pipeline pneumatic valve 4, the coarse material pipeline pneumatic valve 7, the mill pipeline pneumatic valve 9, the vibrating screen 5 and the mill 10 are all electrically connected to the device controller.

[0035] Furthermore, the main pipeline 1 adopts a wear-resistant steel pipe, one end of which is connected to the discharge end of the fluidized bed iron oxide balls, and the other end is connected to the coarse material bin 12; the main pipeline pneumatic valve 2 is installed on the main pipeline 1 through a flange, and is located below the connection point between the main pipeline 1 and the branch pipeline 3.

[0036] Furthermore, the branch pipeline 3 is made of a wear-resistant steel pipe, one end of which is fixedly connected to the main pipeline 1 by welding, and the other end is connected to the feed port of the vibrating screen 5. The branch pipeline pneumatic valve 4 is installed on the branch pipeline 3 through a flange.

[0037] Furthermore, the vibrating screen 5 is specifically a stainless steel rotary vibration screening machine, which is provided with a particle size recognition module, a screening size adjustment mechanism and a screening execution mechanism.

[0038] Further, the connection is fixed, and the other end is connected to the seed bin 13 by a connecting bolt.

[0039] Furthermore, the coarse material pipeline 6 of the vibrating screen is made of a wear-resistant steel pipe, and the coarse material pipeline pneumatic valve 7 is installed on the coarse material pipeline 6 of the vibrating screen at one end close to the pipeline outlet through a flange.

[0040] Furthermore, the mill pipeline 8 is made of wear-resistant steel pipe, one end of which is fixedly connected to the vibrating screen coarse material pipeline 6 by welding, and the connection point is located between the coarse material outlet of the vibrating screen 5 and the coarse material pipeline pneumatic valve 7, and the other end is fixedly connected to the feed pipeline of the mill 10 by welding; the mill pipeline pneumatic valve 9 is installed on the mill pipeline 8 through a flange.

[0041] Furthermore, the mill 10 is specifically a double-roll mill, and the double-roll material is subjected to 20Cr surface carburizing treatment. The feed pipe of the mill 10 is connected to the mill pipe pneumatic valve 9, and the discharge pipe of the mill 10 is connected to the seed bin 13.

[0042] Embodiment 2: This embodiment provides an acid regeneration fluidized bed process seed manufacturing device, wherein the main pipeline 1 is connected to the coarse material bin 12, the main pipeline pneumatic valve 2 is installed on the main pipeline 1, the iron oxide ball branch pipeline 3 is connected to the vibrating screen 5, the branch pipe pneumatic valve 4 is installed on the branch pipeline 3, and the fine material that meets the requirements after screening by the vibrating screen 5 directly enters the seed bin 13 through the vibrating screen fine material pipe 11;

[0043] The particles on the screen (with larger particle size) are divided into two parts. One part is connected to the coarse material bin through the coarse material inlet pipe as needed, and the pneumatic valve is installed in the middle of the pipe. The other part is connected to the mill through the mill pipe, and the pneumatic valve is installed in the middle of the pipe. The coarse material that does not meet the requirements is transported to the vibrating screen coarse material pipe 6. According to the process requirements, if the mill does not need to replenish seeds, it is directly transported to the coarse material bin 12 through the vibrating screen coarse material pipe 6. If the mill needs to replenish seeds, the coarse material is transported to the mill 10 through the mill pipe 8 for grinding. The mill 10 is responsible for further grinding the coarse material to a qualified particle size, and then entering the seed bin 13 through the mill pipe 8.

[0044] The main pipeline 1 is a wear-resistant steel pipe, which is connected to the discharge end of the fluidized bed iron oxide balls, and the main pipeline pneumatic valve 2 is installed on the main pipeline through a flange.

[0045] The branch pipeline 3 is a wear-resistant steel pipe, which is connected to the main pipeline 1 by welding, and the branch pipeline valve 4 is installed on the branch pipeline through a flange.

[0046] The vibrating screen 5 is specifically a stainless steel rotary vibrating screening machine, which is located below the iron oxide ball branch pipe 3, the feed inlet is connected to the branch pipe 3, the fine material outlet is connected to the vibrating screen fine material pipe 11, and the coarse material outlet is connected to the vibrating screen coarse material pipe 6.

[0047] The vibrating screen fine material pipeline 11 is a wear-resistant steel pipe, which is connected to the fine material bin 13 by welding.

[0048] The coarse material pipeline 6 of the vibrating screen is a wear-resistant steel pipe, and the coarse material pipeline pneumatic valve 7 is installed on the coarse material pipeline through a flange.

[0049] The mill pipeline 8 is a wear-resistant steel pipe, which is connected to the vibrating screen coarse material pipeline 6 by welding. The mill pipeline pneumatic valve 9 is installed on the mill pipeline 8 through a flange and is located above the mill 10.

[0050] The mill 10 is specifically a roller mill, the roller material is 20Cr with surface carburizing treatment, the feed port is connected to the mill pipeline pneumatic valve 9, and the discharge port is connected to the fine material bin 13.

[0051] Furthermore, the pipes are all wear-resistant stainless steel pipes, and the valves are all pneumatic valves.

[0052] The specific usage method is: when seed preparation begins, close the main pipeline pneumatic valve 2 on the main pipeline 1, open the branch pipeline pneumatic valve 4 on the branch pipeline 3, and the iron oxide ball raw material is transported to the vibrating screen 5 through the branch pipeline 3. After being screened by the vibrating screen 5, the fine material that meets the requirements is transported to the seed bin 13 through the vibrating screen fine material pipeline 11, and the coarse material that does not meet the requirements is transported to the vibrating screen coarse material pipeline 6. According to the process requirements, if the mill does not need to replenish seeds, open the pneumatic valve 7, close the pneumatic valve 9, and directly transport it to the coarse material bin 12. If the mill needs to replenish seeds, close the pneumatic valve 7, open the pneumatic valve 9, and transport the coarse material to the mill 10 for grinding. After qualified grinding, it is transported to the fine material bin 13 through the pipeline.

[0053] Embodiment 3, based on the same inventive concept, this embodiment also provides an acid regeneration fluidized bed process seed manufacturing method, based on the acid regeneration fluidized bed process seed manufacturing device as described above, such as Figure 2 As shown, the specific steps include:

[0054] S1, the controller receives a seed preparation start instruction;

[0055] S2, close the main pipeline pneumatic valve on the main pipeline, and open the branch pipeline pneumatic valve on the branch pipeline, so that the iron oxide ball raw material is transported to the vibrating screen through the branch pipeline;

[0056] S3, the vibrating screen executes a preset screening program, transports fine materials that meet the particle size requirements to the seed bin through the vibrating screen fine material pipeline, and transports coarse materials that do not meet the requirements to the vibrating screen coarse material pipeline;

[0057] S4, according to the process requirements, determine whether the mill needs to add seeds. If not, open the pneumatic valve of the coarse material pipeline and close the pneumatic valve of the mill pipeline to transport the coarse material directly to the coarse material bin; if yes, close the pneumatic valve of the coarse material pipeline and open the pneumatic valve of the mill pipeline to transport the coarse material to the fine material bin after being ground by the mill and qualified.

[0058] Furthermore, the particle size screening size of the vibrating screen can be adjusted in real time according to process requirements.

[0059] Furthermore, all parts of the present application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0060] In summary:

[0061] The main pipeline of the present invention is connected to the coarse material bin, the pneumatic valve of the main pipeline is installed on the main pipeline, the branch pipeline is connected to the vibrating screen, and the pneumatic valve of the branch pipe is installed on the branch pipe. After screening by the vibrating screen, the fine material that meets the requirements directly enters the seed bin through the fine material pipeline of the vibrating screen, and the coarse material that does not meet the requirements is transported to the coarse material pipeline of the vibrating screen. According to the process requirements, if the mill is not needed to replenish seeds, it is directly transported to the coarse material bin. If the mill is needed to replenish seeds, the coarse material is transported to the mill for grinding. The mill is responsible for further grinding the particles on the screen to a qualified particle size and then entering the seed bin through the fine material pipeline of the mill. The present invention solves the problem of waste of ultrafine powder in seed manufacturing and improves the preparation efficiency by screening the iron oxide ball raw material, directly using the fine material that meets the requirements as seeds, and feeding the coarse material into the mill for grinding as required to prepare seeds.

[0062] It will be easily understood by those skilled in the art that 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 in the protection scope of the present invention.

Claims

1. An acid regeneration fluidized bed process seed manufacturing device, characterized in that: It comprises an iron oxide ball main pipeline (1), a main pipeline pneumatic valve (2), an iron oxide ball branch pipeline (3), a branch pipeline pneumatic valve (4), a vibrating screen (5), a vibrating screen coarse material pipeline (6), a coarse material pipeline pneumatic valve (7), a mill pipeline (8), a mill pipeline pneumatic valve (9), a mill (10), a vibrating screen fine material pipeline (11), a coarse material bin (12) and a seed bin (13); The main pipeline (1) is connected to the coarse material bin (12), the main pipeline pneumatic valve (2) is installed on the main pipeline (1), one end of the branch pipeline (3) is connected to the main pipeline (1), and the other end is connected to the vibrating screen (5), and the branch pipeline pneumatic valve (4) is installed on the branch pipeline (3); The fine material outlet of the vibrating screen (5) is connected to the seed bin (13) through the vibrating screen fine material pipeline (11), the coarse material outlet of the vibrating screen (5) is connected to the coarse material bin (12) through the vibrating screen coarse material pipeline (6), and the middle part of the vibrating screen coarse material pipeline (6) is connected to the feed pipeline of the mill (10) through the mill pipeline (8), and the discharge pipeline of the mill (10) is connected to the seed bin (13), the vibrating screen coarse material pipeline (6) is installed with a coarse material pipeline pneumatic valve (7), and the mill pipeline (8) is installed with a mill pipeline pneumatic valve (9); The main pipeline pneumatic valve (2), the branch pipeline pneumatic valve (4), the coarse material pipeline pneumatic valve (7), the mill pipeline pneumatic valve (9), the vibrating screen (5) and the mill (10) are all electrically connected to the device controller.

2. The acid regeneration fluidized bed process seed manufacturing device according to claim 1, characterized in that: The main pipeline (1) is made of a wear-resistant steel pipe, one end of which is connected to the discharge end of the fluidized bed iron oxide balls, and the other end is connected to the coarse material bin (12); the main pipeline pneumatic valve (2) is installed on the main pipeline (1) through a flange and is located below the connection point between the main pipeline (1) and the branch pipeline (3).

3. The acid regeneration fluidized bed process seed manufacturing device according to claim 1, characterized in that: The branch pipeline (3) is made of a wear-resistant steel pipe, one end of which is fixedly connected to the main pipeline (1) by welding, and the other end is connected to the feed port of the vibrating screen (5). The branch pipeline pneumatic valve (4) is installed on the branch pipeline (3) by a flange.

4. The acid regeneration fluidized bed process seed manufacturing device according to claim 1, characterized in that: The vibrating screen (5) is specifically a stainless steel rotary vibrating screening machine, which is provided with a particle size identification module, a screening size adjustment mechanism and a screening execution mechanism.

5. The acid regeneration fluidized bed process seed manufacturing device according to claim 1, characterized in that: The vibrating screen fine material pipeline (11) is made of a wear-resistant steel pipe, one end of which is fixedly connected to the fine material outlet of the vibrating screen (5) by welding, and the other end is connected to the seed bin (13) by a connecting bolt.

6. The acid regeneration fluidized bed process seed manufacturing device according to claim 1, characterized in that: The coarse material pipeline (6) of the vibrating screen is made of a wear-resistant steel pipe, and the coarse material pipeline pneumatic valve (7) is installed on the coarse material pipeline (6) of the vibrating screen at one end close to the pipeline outlet through a flange.

7. The acid regeneration fluidized bed process seed manufacturing device according to claim 1, characterized in that: The mill pipeline (8) is made of a wear-resistant steel pipe, one end of which is fixedly connected to the coarse material pipeline (6) of the vibrating screen by welding, and the connection point is located between the coarse material outlet of the vibrating screen (5) and the coarse material pipeline pneumatic valve (7), and the other end is fixedly connected to the feed pipeline of the mill (10) by welding; the mill pipeline pneumatic valve (9) is installed on the mill pipeline (8) by a flange.

8. The acid regeneration fluidized bed process seed manufacturing device according to claim 1, characterized in that: The mill (10) is specifically a double-roll mill, and the double-roll material is subjected to 20Cr surface carburization treatment. The feed pipeline of the mill (10) is connected to the mill pipeline pneumatic valve (9), and the discharge pipeline of the mill (10) is connected to the seed bin (13).

9. A method for producing seeds in an acid regeneration fluidized bed process, based on the acid regeneration fluidized bed process seed production device according to any one of claims 1 to 8, characterized in that: The steps include: S1, the controller receives a seed preparation start instruction; S2, close the main pipeline pneumatic valve on the main pipeline, and open the branch pipeline pneumatic valve on the branch pipeline, so that the iron oxide ball raw material is transported to the vibrating screen through the branch pipeline; S3, the vibrating screen executes a preset screening program, transports fine materials that meet the particle size requirements to the seed bin through the vibrating screen fine material pipeline, and transports coarse materials that do not meet the requirements to the vibrating screen coarse material pipeline; S4, according to the process requirements, determine whether the mill needs to add seeds. If not, open the pneumatic valve of the coarse material pipeline and close the pneumatic valve of the mill pipeline to transport the coarse material directly to the coarse material bin; if yes, close the pneumatic valve of the coarse material pipeline and open the pneumatic valve of the mill pipeline to transport the coarse material to the fine material bin after being ground by the mill and qualified.

10. The control method according to claim 9, characterized in that: The particle size screening size of the vibrating screen is adjusted in real time according to process requirements.

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