Seed manufacturing apparatus and manufacturing method for an acid regeneration fluidized bed process

Abstract

The present application relates to acid regeneration fluidized bed process seed manufacturing technology field, specifically to a kind of acid regeneration fluidized bed process seed manufacturing device and manufacturing method.It main pipeline is connected to coarse material bin, main pipeline pneumatic valve is installed on main pipeline, branch pipeline is connected to vibrating screen, branch pipeline pneumatic valve is installed on branch pipeline, vibrating screen is screened, and fine material that meet the requirements is directly into seed bin through vibrating screen fine material pipeline, coarse material that do not meet the requirements is transported to vibrating screen coarse material pipeline, according to process requirement, such as not needing mill to supplement seed, it is directly transported to coarse material bin, if seed needs to be supplemented by mill, then coarse material is transported to mill and is ground, and mill is responsible for further grinding to particle size qualified after screening on particle and is entered seed bin through mill fine material pipeline.By screening iron oxide ball raw material, fine material that meet the requirements is directly used as seed, coarse material is ground according to demand to prepare seed, solve the problem of waste of superfine powder in seed manufacturing, and improve the preparation efficiency.

Description

Technical Field

[0001] This invention relates to the field of seed manufacturing technology using acid regeneration fluidized bed process, and specifically to a seed manufacturing apparatus and method using acid regeneration fluidized bed process. Background Technology

[0002] The acid regeneration fluidized bed process requires the preparation of iron oxide spheres into seeds with smaller particle sizes to facilitate subsequent production. Current technology typically involves directly grinding the spheres according to size requirements using a mill to prepare the required iron oxide sphere seeds. However, in reality, the raw iron oxide spheres are distributed according to particle size, with some particles already meeting the seed size requirements. During seed preparation, these already-meets-size particles are further ground, further reducing their size and increasing the content of ultrafine powder in the seeds, impacting subsequent production. Furthermore, the mills operate continuously for extended periods to meet seed preparation demands, resulting in a high failure rate and reduced efficiency in iron oxide sphere seed preparation. Summary of the Invention

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

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] I. A Seed Manufacturing Device for Acid Regeneration Fluidized Bed Process

[0006] This invention provides a seed manufacturing device for an acid regeneration fluidized bed process, mainly comprising: an iron oxide ball main pipe 1, a main pipe pneumatic valve 2, an iron oxide ball branch pipe 3, a branch pipe pneumatic valve 4, a vibrating screen 5, a vibrating screen coarse material pipe 6, a coarse material pipe pneumatic valve 7, a mill pipe 8, a mill pipe pneumatic valve 9, a mill 10, a vibrating screen fine material pipe 11, a coarse material bin 12, and a seed bin 13;

[0007] The main pipeline 1 is connected to the coarse material silo 12. The pneumatic valve 2 of the main pipeline 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. The pneumatic valve 4 of the branch pipeline 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 fine material pipe 11 of the vibrating screen 5, and the coarse material outlet of the vibrating screen 5 is connected to the coarse material bin 12 through the coarse material pipe 6 of the vibrating screen 5. The middle part of the coarse material pipe 6 of the vibrating screen is connected to the feed pipe of the mill 10 through the mill pipe 8. The discharge pipe of the mill 10 is connected to the seed bin 13. A coarse material pipe pneumatic valve 7 is installed on the coarse material pipe 6 of the vibrating screen 5, and a mill pipe pneumatic valve 9 is installed on the mill pipe 8.

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

[0010] Furthermore, the main pipeline 1 is made of 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 pipe 3 is made of wear-resistant steel pipe, one end of which is fixedly connected to the main pipe 1 by welding, and the other end is connected to the feed port of the vibrating screen 5. The pneumatic valve 4 of the branch pipe is installed on the branch pipe 3 through a flange.

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

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

[0014] Furthermore, the coarse material pipe 6 of the vibrating screen is made of wear-resistant steel pipe, and the pneumatic valve 7 of the coarse material pipe is installed on the coarse material pipe 6 of the vibrating screen near the pipe 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 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 pneumatic valve 7 of the coarse material pipeline. The other end is fixedly connected to the feed pipeline of the mill 10 by welding. The pneumatic valve 9 of the mill pipeline 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 treated with 20Cr surface carburizing. 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] II. A method for seed manufacturing using an acid regeneration fluidized bed process

[0018] Based on the same inventive concept, the present invention also provides a method for manufacturing seeds for an acid regeneration fluidized bed process, which, based on the acid regeneration fluidized bed process seed manufacturing apparatus described above, specifically includes the following steps:

[0019] S1, The controller receives the seed preparation start command;

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

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

[0022] S4. Based on process requirements, determine whether the mill needs to be replenished with seeds. If not, open the pneumatic valve of the coarse material pipeline and close the pneumatic valve of the mill pipeline, so that the coarse material is directly transported 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, so that the coarse material is transported to the fine material bin after being ground and qualified by the mill.

[0023] Furthermore, the particle 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] In this invention, the main pipeline is connected to the coarse material silo, and a pneumatic valve is installed on the main pipeline. Branch pipelines are connected to the vibrating screen, and pneumatic valves are installed on the branch pipelines. Fine materials that meet the requirements after screening by the vibrating screen are directly fed into the seed silo through the vibrating screen fine material pipeline. Coarse materials that do not meet the requirements are transported to the vibrating screen coarse material pipeline. According to process requirements, if a mill is not needed to replenish seeds, the coarse materials are directly transported to the coarse material silo. If a mill is needed to replenish seeds, the coarse materials are transported to the mill for grinding. The mill is responsible for further grinding the particles on the screen until the particle size is qualified, and then the particles are fed into the seed silo through the mill fine material pipeline. This invention solves the problem of waste of ultrafine powder in seed manufacturing and improves the efficiency of seed preparation by screening the iron oxide ball raw material, using the qualified fine materials directly as seeds, and grinding the coarse materials into the mill as needed. Attached Figure Description

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

[0027] Figure 2 This is a flowchart of the seed manufacturing method of acid regeneration fluidized bed process in an embodiment of the present invention.

[0028] In the diagram: 1-Main pipe, 2-Main pipe pneumatic valve, 3-Branch pipe, 4-Branch pipe pneumatic valve, 5-Vibrating screen, 6-Vibrating screen coarse material pipe, 7-Coarse material pipe pneumatic valve, 8-Grinding mill pipe, 9-Grinding mill pipe pneumatic valve, 10-Grinding mill, 11-Vibrating screen fine material pipe, 12-Coarse material bin, 13-Seed bin. Detailed Implementation

[0029] 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. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0030] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

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

[0032] The main pipeline 1 is connected to the coarse material silo 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, 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 fine material pipe 11 of the vibrating screen 5, and the coarse material outlet of the vibrating screen 5 is connected to the coarse material bin 12 through the coarse material pipe 6 of the vibrating screen 5. The middle part of the coarse material pipe 6 of the vibrating screen is connected to the feed pipe of the mill 10 through the mill pipe 8. The discharge pipe of the mill 10 is connected to the seed bin 13. A coarse material pipe pneumatic valve 7 is installed on the coarse material pipe 6 of the vibrating screen 5, and a mill pipe pneumatic valve 9 is installed on the mill pipe 8.

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

[0035] Furthermore, the main pipeline 1 is made of 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 pipe 3 is made of wear-resistant steel pipe, one end of which is fixedly connected to the main pipe 1 by welding, and the other end is connected to the feed port of the vibrating screen 5. The pneumatic valve 4 of the branch pipe is installed on the branch pipe 3 through a flange.

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

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

[0039] Furthermore, the coarse material pipe 6 of the vibrating screen is made of wear-resistant steel pipe, and the pneumatic valve 7 of the coarse material pipe is installed on the coarse material pipe 6 of the vibrating screen near the pipe 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 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 pneumatic valve 7 of the coarse material pipeline. The other end is fixedly connected to the feed pipeline of the mill 10 by welding. The pneumatic valve 9 of the mill pipeline 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 treated with 20Cr surface carburizing. 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] Example 2: This example provides a seed manufacturing device for an acid regeneration fluidized bed process. The main pipe 1 is connected to the coarse material bin 12. The main pipe pneumatic valve 2 is installed on the main pipe 1. The iron oxide ball branch pipe 3 is connected to the vibrating screen 5. The branch pipe pneumatic valve 4 is installed on the branch pipe 3. The fine material that meets the requirements after screening by the vibrating screen 5 is directly fed into the seed bin 13 through the vibrating screen fine material pipe 11.

[0043] The particles over the screen (larger particle size) are divided into two parts. One part is connected to the coarse material silo via the coarse material inlet pipe, with a pneumatic valve installed in the middle of the pipe. The other part is connected to the mill via the mill pipe, with a pneumatic valve installed in the middle of the pipe. Coarse material that does not meet the requirements is conveyed to the coarse material pipe 6 of the vibrating screen. According to the process requirements, if the mill does not need to be replenished with seeds, it is directly conveyed to the coarse material silo 12 via the coarse material pipe 6 of the vibrating screen. If the mill needs to be replenished with seeds, the coarse material is conveyed to the mill 10 via the mill pipe 8 for grinding. The mill 10 is responsible for further grinding the coarse material to the qualified particle size, and then it enters the seed silo 13 via 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. The main pipeline pneumatic valve 2 is installed on the main pipeline through a flange.

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

[0046] The vibrating screen 5 is specifically a stainless steel rotary vibrating screen, 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 fine material pipe 11 of the vibrating screen, and the coarse material outlet is connected to the coarse material pipe 6 of the vibrating screen.

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

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

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

[0050] The mill 10 is specifically a double-roll mill, with the double rolls made of 20Cr material and surface carburized. The feed inlet is connected to the pneumatic valve 9 of the mill pipeline, and the discharge outlet is connected to the fine material bin 13.

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

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

[0053] Example 3, based on the same inventive concept, this example also provides a method for manufacturing seeds for an acid regeneration fluidized bed process, based on the acid regeneration fluidized bed process seed manufacturing apparatus described above, such as... Figure 2 As shown, the specific steps include the following:

[0054] S1, The controller receives the seed preparation start command;

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

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

[0057] S4. Based on process requirements, determine whether the mill needs to be replenished with seeds. If not, open the pneumatic valve of the coarse material pipeline and close the pneumatic valve of the mill pipeline, so that the coarse material is directly transported 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, so that the coarse material is transported to the fine material bin after being ground and qualified by the mill.

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

[0059] Furthermore, all parts of this application that are not described in detail are the same as or implemented using existing technology.

[0060] In summary:

[0061] In this invention, the main pipeline is connected to the coarse material silo, and a pneumatic valve is installed on the main pipeline. Branch pipelines are connected to the vibrating screen, and pneumatic valves are installed on the branch pipelines. Fine materials that meet the requirements after screening by the vibrating screen are directly fed into the seed silo through the vibrating screen fine material pipeline. Coarse materials that do not meet the requirements are transported to the vibrating screen coarse material pipeline. According to process requirements, if a mill is not needed to replenish seeds, the coarse materials are directly transported to the coarse material silo. If a mill is needed to replenish seeds, the coarse materials are transported to the mill for grinding. The mill is responsible for further grinding the particles on the screen until the particle size is qualified, and then the particles are fed into the seed silo through the mill fine material pipeline. This invention solves the problem of waste of ultrafine powder in seed manufacturing and improves the efficiency of seed preparation by screening the iron oxide ball raw material, using the qualified fine materials directly as seeds, and grinding the coarse materials into the mill as needed.

[0062] Those skilled in the art will readily understand that the above description is merely 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 scope of protection of the present invention.

Claims

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

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

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

5. The seed manufacturing apparatus for acid regeneration fluidized bed process according to claim 1, characterized in that, The fine material pipe (11) of the vibrating screen is made of wear-resistant steel pipe. One end of it 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 connecting bolts.

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

7. The seed manufacturing apparatus for acid regeneration fluidized bed process according to claim 1, characterized in that, The mill pipeline (8) is made of wear-resistant steel pipe. One end of it 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 pneumatic valve (7) of the coarse material pipeline. The other end is fixedly connected to the feed pipeline of the mill (10) by welding. The pneumatic valve (9) of the mill pipeline is installed on the mill pipeline (8) through a flange.

8. The seed manufacturing apparatus for acid regeneration fluidized bed process according to claim 1, characterized in that, The mill (10) is specifically a double-roll mill, and the double-roll material is treated with 20Cr surface carburizing. 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).

9. A method for manufacturing seeds using an acid-regenerated fluidized bed process, based on the acid-regenerated fluidized bed process seed manufacturing apparatus as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S1, The controller receives the seed preparation start command; S2, close the main pipeline pneumatic valve on the main pipeline and open the branch pipeline pneumatic valve on the branch pipeline to allow the iron oxide ball raw material to be transported to the vibrating screen through the branch pipeline; S3, the vibrating screen executes the preset screening program, which transports fine materials that meet the particle size requirements to the seed bin through the fine material pipe of the vibrating screen, and transports coarse materials that do not meet the requirements to the coarse material pipe of the vibrating screen. S4. Based on process requirements, determine whether the mill needs to be replenished with seeds. If not, open the pneumatic valve of the coarse material pipeline and close the pneumatic valve of the mill pipeline, so that the coarse material is directly conveyed 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, so that the coarse material is conveyed to the fine material bin after being ground by the mill.

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

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