Dust removal process for multiple parallel silos

Abstract

The invention provides a dust removal process for multiple parallel silos, and relates to the technical field of coke dust removal. The dust removal process is based on the dust removal device for the multiple rows of silos, one ends of a plurality of dust removal branch pipes on the silos are respectively communicated with feeding points of the silos, and the other ends of the dust removal branch pipes on the silos are communicated with a dust remover on the silos through a dust removal header pipe on the silos; one end of each of the plurality of dedusting branch pipes below the silo is respectively communicated with the unloading points of the plurality of silos, the other ends of the plurality of dedusting branch pipes below the silo are communicated with the dedusting device below the silo through the dedusting header pipe below the silo, and the dedusting branch pipes above the silo and the dedusting branch pipes below the silo are respectively provided with a valve. The dust removal station fans of the on-bin dust remover and the under-bin dust remover are regulated and controlled in a variable-frequency mode, the energy-saving function can be achieved, when a plurality of dust removal points need to work, the frequency of the fans is increased, when the dust removal points are few, the frequency of the fans is reduced, the energy-saving purpose is achieved, and meanwhile the function of flexible adjustment is achieved in cooperation with opening and closing of all the valves.

Description

Technical Field

[0001] The invention relates to the technical field of coke dust removal, and in particular to a dust removal process for a plurality of linked silos. Background Art

[0002] Coke is the core raw material for blast furnace ironmaking. During storage in silos, due to its high particle hardness and sharp edges, a large amount of abrasive dust is generated during loading and unloading operations. Traditional coke silo dust removal systems generally adopt a single-pipeline centralized dust removal mode.

[0003] Traditional row silos have many material drop points, and there are many material drop points above and below the silo, resulting in many dust removal points. Generally, decentralized dust removal stations are used for dust removal. This dust removal method is costly, inefficient, and cumbersome to operate. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a dust removal process for multiple row silos.

[0005] The present invention provides a dust removal process for multiple number of silos in a row, the dust removal process for multiple number of silos in a row is based on a dust removal device for multiple number of silos in a row, the dust removal device for multiple number of silos in a row comprises multiple dust removal branch pipes on the silo, multiple dust removal branch pipes under the silo, a dust removal main pipe on the silo, a dust collector on the silo and a dust collector under the silo, one end of multiple dust removal branch pipes on the silo are respectively connected to the feeding points of multiple silos, the other end of multiple dust removal branch pipes on the silo are connected to the dust collector on the silo through the dust removal main pipe on the silo, one end of multiple dust removal branch pipes under the silo are respectively connected to the unloading points of multiple silos, the other end of multiple dust removal branch pipes under the silo are connected to the dust collector under the silo through the dust removal main pipe under the silo, and valves are provided on the dust removal branch pipes on the silo and the dust removal branch pipes under the silo;

[0006] The dust removal process for multiple row silos includes the following steps:

[0007] S1: Start the dust collector above the silo and the dust collector below the silo;

[0008] S2: When the feeding point of a silo is feeding, open the valve on the dust removal branch pipe on the silo;

[0009] S3: When the unloading point of a silo is unloading, open the valve on the dust removal branch pipe under the silo.

[0010] Optionally, a plurality of the valves are provided, and the plurality of the valves are respectively provided on a plurality of silos, and a single valve is used to distribute the airflow in the upper dust removal branch pipe and the lower dust removal branch pipe on a single silo.

[0011] Optionally, the valve includes an annular shell and an air guide plate, the dust removal branch pipe on the silo includes a first pipe section and a second pipe section, one end of the first pipe section is connected to the feeding point of the silo, the other end of the first pipe section is connected to the annular shell, one end of the second pipe section is connected to the annular shell, the other end of the second pipe section is connected to the dust removal main pipe on the silo, the dust removal branch pipe under the silo includes a third pipe section and a fourth pipe section, one end of the third pipe section is connected to the unloading point of the silo, the other end of the third pipe section is connected to the annular shell, one end of the fourth pipe section is connected to the annular shell, the other end of the fourth pipe section is connected to the dust removal main pipe under the silo, the air guide plate is rotatably arranged in the annular shell, and the air guide plate is slidably connected to the inner wall of the annular shell.

[0012] Optionally, the air guide plate has a first position, a second position, a third position, a fourth position and a fifth position;

[0013] When the air guide plate is in the first position, the first pipe section is connected to the second pipe section, and the third pipe section is connected to the fourth pipe section;

[0014] When the air guide plate is in the second position, the first pipe section and the third pipe section are both connected to the fourth pipe section;

[0015] When the air guide plate is at the third position, the first pipe section and the third pipe section are both connected to the second pipe section;

[0016] When the air guide plate is in the fourth position, the first pipe section and the third pipe section are both connected to the second pipe section;

[0017] When the air guide plate is at the fourth position, the first pipe section is connected to the second pipe section and the fourth pipe section;

[0018] When the air guide piece is at the fifth position, the third pipe section is connected to the second pipe section and the fourth pipe section.

[0019] Optionally, the air guide piece is configured as a V-shaped structure, and a silicone sealing strip is embedded on the edge of the air guide piece.

[0020] Optionally, the valve further comprises a driving mechanism, and the driving mechanism is used to drive the air guide plate to rotate.

[0021] Optionally, the driving mechanism includes a driving component and a rotating shaft, the air guide plate is sleeved on the rotating shaft, and the driving component is drivingly connected to the rotating shaft to rotate the rotating shaft.

[0022] Optionally, the driving component includes a motor and a reducer, the motor and the reducer are both connected to the annular housing, the motor is drivingly connected to the reducer, and the reducer is drivingly connected to the rotating shaft.

[0023] The beneficial effect of the dust removal process of multiple silos in a row according to the present invention is that: by setting a silo dust removal branch pipe at the feeding point of each silo, and setting a silo dust removal branch pipe at the unloading point of each silo, the silo dust removal branch pipes on multiple silos are connected with the silo dust collector through the silo dust removal main pipe, and the silo dust removal branch pipes on multiple silos are connected with the silo dust collector through the silo dust removal main pipe, and valves are installed on each silo dust removal branch pipe and the silo dust removal branch pipe, so that when the feeding point of a silo is feeding, the silo is opened. The valve on the upper dust removal branch pipe can be used. When the unloading point of a silo is unloading, the valve on the dust removal branch pipe under the silo can be opened, thereby realizing the feeding dust removal of any silo above the silo and the unloading dust removal of any silo below the silo. The fan of the dust removal station of the dust collector on the silo and the dust collector under the silo can be controlled by frequency conversion to achieve the function of energy saving. When multiple dust removal points need to work, the fan frequency is increased. When there are fewer dust removal points, the fan frequency is reduced to achieve the purpose of energy saving. At the same time, it cooperates with the switching of each valve to play a role of flexible adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a dust removal device for multiple row silos according to an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of installing a plurality of row silo dust removal devices on a single silo according to an embodiment of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the air guide vanes in the dust removal device for multiple row silos according to an embodiment of the present invention when the air guide vanes are in the first position;

[0027] Figure 4 It is a structural schematic diagram of the air guide vanes in the dust removal device for multiple row silos according to an embodiment of the present invention when the air guide vanes are in the second position;

[0028] Figure 5 It is a structural schematic diagram of the air guide vane in the dust removal device for multiple row silos according to an embodiment of the present invention when it is in the third position;

[0029] Figure 6 It is a structural schematic diagram of the air guide vane in the dust removal device for multiple row silos according to an embodiment of the present invention when it is in the fourth position;

[0030] Figure 7 It is a structural schematic diagram of the air guide vane in the dust removal device for multiple row silos according to an embodiment of the present invention when it is in the fifth position;

[0031] Figure 8It is a schematic diagram of the structure of the driving mechanism in the dust removal device for multiple row silos according to an embodiment of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the air guide vane in the dust removal device for multiple row silos according to an embodiment of the present invention when it is in the sixth position;

[0033] Fig.10 It is a structural schematic diagram of the air guide vanes in the dust removal device for multiple row silos according to an embodiment of the present invention when they are in the seventh position.

[0034] Explanation of the reference numerals: 1. branch pipe for dust removal above the silo; 11. first pipe section; 12. second pipe section; 2. branch pipe for dust removal below the silo; 21. third pipe section; 22. fourth pipe section; 3. main pipe for dust removal above the silo; 4. main pipe for dust removal below the silo; 5. dust collector above the silo; 6. dust collector below the silo; 7. valve; 71. annular shell; 72. driving mechanism; 721. driving component; 722. rotating shaft; 73. air guide vane; 100. silo. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or embodiments in a suitable manner.

[0038] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0039] The embodiment of the present invention provides a dust removal process for a plurality of silos in a row, and the dust removal process for a plurality of silos in a row is based on a dust removal device for a plurality of silos in a row, and the dust removal device for a plurality of silos in a row comprises a plurality of upper dust removal branch pipes 1, a plurality of lower dust removal branch pipes 2, an upper dust removal main pipe 3, a lower dust removal main pipe 4, an upper dust collector 5 and a lower dust collector 6, one end of the plurality of upper dust removal branch pipes 1 are respectively connected to the feeding points of a plurality of silos 100, the other end of the plurality of upper dust removal branch pipes 1 are connected to the upper dust collector 5 through the upper dust removal main pipe 3, one end of the plurality of lower dust removal branch pipes 2 are respectively connected to the unloading points of a plurality of silos 100, the other end of the plurality of lower dust removal branch pipes 2 are connected to the lower dust collector 6 through the lower dust removal main pipe 4, and valves 7 are provided on the upper dust removal branch pipes 1 and the lower dust removal branch pipes 2;

[0040] The dust removal process for multiple row silos includes the following steps:

[0041] S1: Start the upper dust collector 5 and the lower dust collector 6;

[0042] S2: When the feeding point of a silo 100 is feeding, the valve 7 on the dust removal branch pipe 1 on the silo is opened;

[0043] S3: When the unloading point of a silo 100 is unloading, open the valve 7 on the dust removal branch pipe 2 under the silo.

[0044] It should be noted that, in order to facilitate the explanation of the scheme, in Figure 1, the dust collector 5 on the silo and the dust collector under the silo are drawn next to multiple silos 100. In this embodiment, the number of silos 100 is set to ten, and ten silos 100 are arranged side by side to form a row of silos 100, from left to right, they are No. 1 silo, No. 2 silo, No. 3 silo, No. 4 silo, No. 5 silo, No. 6 silo, No. 7 silo, No. 8 silo, No. 9 silo and No. 10 silo. The dust collector 5 on the silo and the dust collector under the silo correspond to two independent centralized control systems respectively. For example, if the material in No. 2 silo needs to be unloaded, the valve 7 on the dust removal branch pipe 2 under No. 2 silo can be opened by control, and the valves 7 of other silos can be closed. The dust collector 5 on the silo and the dust collector under the silo can be bag dust collectors, especially low-pressure pulse bag dust collectors. The low-pressure pulse bag dust collector combines high-efficiency filtering and cleaning technology, which can effectively reduce dust emissions and protect the environment and the health of operators.

[0045] In this optional embodiment, by setting an upper dust removal branch pipe 1 at the feeding point of each silo 100, and setting a lower dust removal branch pipe 2 at the unloading point of each silo 100, the upper dust removal branch pipes 1 on multiple silos 100 are connected to the upper dust collector 5 through the upper dust removal main pipe 3, and the lower dust removal branch pipes 2 on multiple silos 100 are connected to the lower dust collector 6 through the lower dust removal main pipe 4, and valves 7 are installed on each upper dust removal branch pipe 1 and the lower dust removal branch pipe 2. In this way, when the feeding point of a certain silo 100 is feeding, the upper dust removal branch pipe 1 of the silo 100 is opened. The valve 7 on the dust removal branch pipe 1 can be used. When the unloading point of a silo 100 is unloading, the valve 7 on the dust removal branch pipe 2 under the silo can be opened, thereby realizing the feeding dust removal of any silo 100 on the silo and the unloading dust removal of any silo 100 under the silo. The fan of the dust removal station of the dust collector 5 on the silo and the dust collector 6 under the silo can be controlled by frequency conversion to achieve the function of energy saving. When multiple dust removal points need to work, the fan frequency is increased. When there are fewer dust removal points, the fan frequency is reduced to achieve the purpose of energy saving. At the same time, the switching of each valve 7 can be coordinated to play a role of flexible adjustment.

[0046] Optionally, a plurality of valves 7 are provided, and the plurality of valves 7 are respectively provided on a plurality of silos 100 , and a single valve 7 is used to distribute the airflow in the upper dust removal branch pipe 1 and the lower dust removal branch pipe 2 of a single silo 100 .

[0047] In this optional embodiment, the airflow in the dust removal branch pipe 1 above the bin and the dust removal branch pipe 2 below the bin is distributed by the valve 7, so that the dust removal above the bin and the dust removal below the bin can be made more flexible.

[0048] Further, the valve 7 includes an annular shell 71 and an air guide plate 73, the upper dust removal branch pipe 1 includes a first pipe section 11 and a second pipe section 12, one end of the first pipe section 11 is connected to the feeding point of the silo 100, the other end of the first pipe section 11 is connected to the annular shell 71, one end of the second pipe section 12 is connected to the annular shell 71, and the other end of the second pipe section 12 is connected to the upper dust removal main pipe 3, the lower dust removal branch pipe 2 includes a third pipe section 21 and a fourth pipe section 22, one end of the third pipe section 21 is connected to the unloading point of the silo 100, the other end of the third pipe section 21 is connected to the annular shell 71, one end of the fourth pipe section 22 is connected to the annular shell 71, and the other end of the fourth pipe section 22 is connected to the lower dust removal main pipe 4, the air guide plate 73 is rotatably arranged in the annular shell 71, and the air guide plate 73 is slidably connected to the inner wall of the annular shell 71.

[0049] Further, the air guide piece 73 has a first position, a second position, a third position, a fourth position and a fifth position;

[0050] Combination Figure 3As shown, when the air guide plate 73 is in the first position, the first pipe segment 11 is connected to the second pipe segment 12, and the third pipe segment 21 is connected to the fourth pipe segment 22. At this time, the feeding rate of the feeding point is the same as the unloading rate of the unloading point. The dust generated at the feeding point passes through the first pipe segment 11 and the second pipe segment 12 in sequence into the upper dust removal main pipe 3, and then enters the upper dust collector 5 for dust removal. The dust generated at the unloading point passes through the third pipe segment 21 and the fourth pipe segment 22 in sequence into the lower dust removal main pipe 4, and then enters the lower dust collector 6 for dust removal.

[0051] Combination Figure 4 As shown, when the air guide plate 73 is in the second position, the first pipe segment 11 and the third pipe segment 21 are connected to the fourth pipe segment 22. When the upper dust collector 5 is damaged or undergoing maintenance, the dust generated at the feeding point and the unloading point enters the fourth pipe segment 22 through the first pipe segment 11 and the third pipe segment 21 respectively, and then enters the lower dust collector 6 through the lower dust removal main pipe 4 for dust removal.

[0052] Combination Figure 5 As shown, when the air guide plate 73 is in the third position, the first pipe section 11 and the third pipe section 21 are both connected to the second pipe section 12. When the under-bin dust collector 6 is damaged or is undergoing maintenance, the dust generated at the feeding point and the unloading point enters the second pipe section 12 through the first pipe section 11 and the third pipe section 21 respectively, and then enters the upper-bin dust collector 5 through the upper-bin dust removal main pipe 3 for dust removal.

[0053] Combination Figure 6 As shown, when the air guide plate 73 is in the fourth position, the first pipe section 11 is connected with the second pipe section 12 and the fourth pipe section 22. When all the unloading points of the silos 100 have not been unloaded and coke needs to be transported to all the silos 100, the dust generated at the feeding point enters the second pipe section 12 and the fourth pipe section 22 from the first pipe section 11, and then enters the upper dust collector 5 and the lower dust collector 6 for dust removal through the upper dust removal main pipe 3 and the lower dust removal main pipe 4, so as to improve the dust removal capacity of the row silos 100 when a large amount of material is concentrated.

[0054] Combination Figure 7 As shown, when the air guide plate 73 is in the fifth position, the third pipe section 21 is connected with the second pipe section 12 and the fourth pipe section 22. When the feeding points of all the silos 100 are not fed and the coke in all the silos 100 needs to be unloaded, the dust generated at the unloading point enters the second pipe section 12 and the fourth pipe section 22 from the third pipe section 21, and then enters the upper dust collector 5 and the lower dust collector 6 through the upper dust removal main pipe 3 and the lower dust removal main pipe 4 for dust removal, so as to improve the dust removal capacity of the row silos 100 when unloading in large quantities.

[0055] In other optional embodiments, the air guide piece 73 also has a sixth position and a seventh position. Fig. 9As shown, when the air guide piece 73 is in the sixth position, a part of the first pipe segment 11 is connected to the second pipe segment 12, another part of the first pipe segment 11 is connected to the fourth pipe segment 22, and the third pipe segment 21 is connected to the fourth pipe segment 22. At this time, for a single silo 100, when the feeding rate of its feeding point is greater than the unloading rate of the unloading point, the dust generated at the feeding point can simultaneously enter the upper dust collector 5 and the lower dust collector 6 for dust removal, so there is no need to increase the frequency of the upper dust collector 5 to avoid affecting the feeding process of other silos 100; combined with Fig.10 As shown, when the air guide plate 73 is in the seventh position, the first pipe segment 11 is connected to the second pipe segment 12, a part of the third pipe segment 21 is connected to the second pipe segment 12, and another part of the third pipe segment 21 is connected to the fourth pipe segment 22. At this time, for a single silo 100, when the unloading rate of the unloading point is greater than the feeding rate of the material point, the dust generated at the unloading point can simultaneously enter the upper dust collector 5 and the lower dust collector 6 for dust removal, thereby eliminating the need to increase the frequency of the lower dust collector 6 to avoid affecting the unloading process of other silos 100.

[0056] Furthermore, the air guide piece 73 is configured as a V-shaped structure, and a silicone sealing strip is embedded on the edge of the air guide piece 73 .

[0057] In this optional embodiment, combined with Figure 3 - Figure 7 As shown, by setting the air guide piece 73 to a V-shaped structure with an obtuse angle, the effect achieved by the air guide piece 73 in the first position, the second position, the third position, the fourth position, the fifth position, the sixth position and the seventh position is achieved, and a silicone sealing strip is embedded on the edge of the air guide piece 73 so that the silicone sealing strip is in sliding contact with the annular shell 71, which can improve the sealing of the connection between the first pipe segment 11, the second pipe segment 12, the third pipe segment 21 and the fourth pipe segment 22 when the air guide piece 73 is in different positions, and the air guide piece 73 can also clean the inner wall of the annular shell 71 when it rotates to different positions, and the scraped dust and dirt enter the second pipe segment 12 and the fourth pipe segment 22 and are then sucked away.

[0058] Optionally, the valve 7 further includes a driving mechanism 72, and the driving mechanism 72 is used to drive the air guide vane 73 to rotate.

[0059] In this optional embodiment, the air guide plate 73 is driven to rotate by the driving mechanism 72, so that the air guide plate 73 is switched among the first position, the second position, the third position, the fourth position, the fifth position, the sixth position and the seventh position.

[0060] Furthermore, the driving mechanism 72 includes a driving component 721 and a rotating shaft 722 . The air guide plate 73 is mounted on the rotating shaft 722 . The driving component 721 is drivingly connected to the rotating shaft 722 to rotate the rotating shaft 722 .

[0061] In this optional embodiment, the driving component 721 drives the rotating shaft 722 to rotate, thereby driving the air guide plate 73 to rotate synchronously.

[0062] Optionally, the driving component 721 includes a motor and a reducer, both of which are connected to the annular housing 71 , the motor is drivingly connected to the reducer, and the reducer is drivingly connected to the rotating shaft 722 .

[0063] In this optional embodiment, combined with Figure 3 - Figure 8 As shown, the motor can be a stepper motor to accurately control the rotation angle of the air guide plate 73 so that the air guide plate 73 can rotate to the first position, the second position, the third position, the fourth position, the fifth position, the sixth position and the seventh position. The motor and the reducer are both fixedly mounted on the outside of the annular shell 71 by bolts, and the output shaft of the motor is connected to the input shaft of the reducer through a coupling. The output shaft of the reducer is connected to one end of the rotating shaft 722, and the other end of the rotating shaft 722 penetrates into the annular shell 71 from one side of the annular shell 71 and is rotatably connected to the other side of the annular shell 71 through a bearing.

[0064] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A dust removal process for multiple row silos, characterized in that: The multi-number silo dust removal process is based on a multi-number silo dust removal device, which includes a plurality of silo upper dust removal branch pipes (1), a plurality of silo lower dust removal branch pipes (2), a silo upper dust removal main pipe (3), a silo lower dust removal main pipe (4), a silo upper dust collector (5) and a silo lower dust collector (6), one end of the plurality of silo upper dust removal branch pipes (1) are respectively connected to the feed points of the plurality of silos (100), and the plurality of silo upper dust removal branch pipes (2) are connected to the feed points of the plurality of silos (100). The other end of the branch pipe (1) is connected to the upper silo dust collector (5) through the upper silo dust collection main pipe (3), one end of the plurality of lower silo dust collection branch pipes (2) are respectively connected to the unloading points of the plurality of silos (100), the other end of the plurality of lower silo dust collection branch pipes (2) are connected to the lower silo dust collector (6) through the lower silo dust collection main pipe (4), and valves (7) are provided on the upper silo dust collection branch pipe (1) and the lower silo dust collection branch pipe (2); The dust removal process for multiple row silos includes the following steps: S1: Start the dust collector above the bin (5) and the dust collector below the bin (6); S2: When the feeding point of a silo (100) is feeding, the valve (7) on the dust removal branch pipe (1) on the silo is opened; S3: When the unloading point of a silo (100) is unloading, open the valve (7) on the dust removal branch pipe (2) under the silo.

2. The dust removal process for multiple row silos as claimed in claim 1, characterized in that: The valve (7) is provided in plurality, and the plurality of valves (7) are respectively provided on a plurality of silos (100), and a single valve (7) is used to distribute the airflow in the upper silo dust removal branch pipe (1) and the lower silo dust removal branch pipe (2) on a single silo (100).

3. The dust removal process for multiple row silos as claimed in claim 2, characterized in that: The valve (7) comprises an annular shell (71) and an air guide plate (73); the upper dust removal branch pipe (1) comprises a first pipe section (11) and a second pipe section (12); one end of the first pipe section (11) is connected to a material inlet of the silo (100); the other end of the first pipe section (11) is connected to the annular shell (71); one end of the second pipe section (12) is connected to the annular shell (71); the other end of the second pipe section (12) is connected to the upper dust removal main pipe (3); the lower dust removal branch pipe (2) comprises a third pipe section (11); The pipe section (21) and the fourth pipe section (22), one end of the third pipe section (21) is connected to the unloading point of the silo (100), the other end of the third pipe section (21) is connected to the annular shell (71), one end of the fourth pipe section (22) is connected to the annular shell (71), the other end of the fourth pipe section (22) is connected to the under-silo dust removal main pipe (4), the air guide plate (73) is rotatably arranged in the annular shell (71), and the air guide plate (73) is slidably connected to the inner wall of the annular shell (71).

4. The dust removal process for multiple row silos as claimed in claim 3, characterized in that: The air guide plate (73) has a first position, a second position, a third position, a fourth position and a fifth position; When the air guide plate (73) is in the first position, the first pipe section (11) is connected to the second pipe section (12), and the third pipe section (21) is connected to the fourth pipe section (22); When the air guide plate (73) is in the second position, the first pipe section (11) and the third pipe section (21) are both connected to the fourth pipe section (22); When the air guide plate (73) is in the third position, the first pipe section (11) and the third pipe section (21) are both connected to the second pipe section (12); When the air guide plate (73) is in the fourth position, the first pipe section (11) and the third pipe section (21) are both connected to the second pipe section (12); When the air guide plate (73) is in the fourth position, the first pipe section (11) is connected to the second pipe section (12) and the fourth pipe section (22); When the air guide plate (73) is in the fifth position, the third pipe section (21) is in communication with the second pipe section (12) and the fourth pipe section (22).

5. The dust removal process for multiple row silos as claimed in claim 4, characterized in that: The air guide piece (73) is configured as a V-shaped structure, and a silicone sealing strip is embedded on the edge of the air guide piece (73).

6. The dust removal process for multiple row silos as claimed in claim 5, characterized in that: The valve (7) further comprises a driving mechanism (72), wherein the driving mechanism (72) is used to drive the air guide plate (73) to rotate.

7. The dust removal process for multiple silos in a row as claimed in claim 6, characterized in that: The driving mechanism (72) comprises a driving component (721) and a rotating shaft (722); the air guide plate (73) is sleeved on the rotating shaft (722); the driving component (721) is drivingly connected to the rotating shaft (722) so as to rotate the rotating shaft (722).

8. The dust removal process for multiple silos in row according to claim 7, characterized in that: The driving component (721) comprises a motor and a reducer, wherein the motor and the reducer are both connected to the annular housing (71), the motor is drivingly connected to the reducer, and the reducer is drivingly connected to the rotating shaft (722).

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