Movable asphalt concrete waste regeneration treatment device

By designing a mobile asphalt concrete waste recycling device, a power component is used to drive the mixing component to achieve the mixed recycling of asphalt and waste, which solves the problem of needing to complete the process in a factory and with the assistance of equipment in the existing technology, and improves the ease of operation and practicality.

CN121407463APending Publication Date: 2026-01-27ZHEJIANG YIFANG ASPHALT CONCRETE CO LTD
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Patent Information

Application Number
CN202411015278.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2026-01-27

AI Technical Summary

Technical Problem

Existing asphalt concrete waste recycling equipment needs to be completed in a factory and requires other equipment to assist, resulting in cumbersome operation and low practicality.

Method used

Design a mobile asphalt concrete waste recycling device, comprising a base, a box, a fixed cylinder, a mixing component, a power component, an asphalt conveying component, and a heating component. The mixing component is driven by the power component to achieve the mixing and recycling of asphalt and waste.

Benefits of technology

It enables on-site, real-time processing of asphalt concrete waste, simplifies the operation process, and improves the practicality and efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a movable asphalt concrete waste regeneration treatment device, and relates to the technical field of asphalt concrete waste regeneration, the movable asphalt concrete waste regeneration treatment device comprises a base, the top of the base is provided with a box body, and the box body is internally provided with a storage box; the fixed cylinder is fixed to the top of the base, and a stirring assembly is rotationally arranged in the fixed cylinder; the power assembly is arranged at the top of the fixed cylinder, and the power assembly is used for driving the stirring assembly to work; the backflow assembly is arranged at the bottom of the fixed cylinder, and the backflow assembly communicates with the box body; and the asphalt conveying assembly is arranged on the inner wall of the box body. According to the asphalt concrete waste regeneration device, the stirring assembly can be driven to work through the power assembly, and in the working process of the stirring assembly, the asphalt conveying assembly is driven to work, so that asphalt in the storage box is input into the stirring assembly, the asphalt and waste are mixed, and regeneration of the asphalt concrete waste is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt concrete waste recycling, in particular to a movable asphalt concrete waste recycling device. BACKGROUND

[0002] Asphalt concrete is commonly known as asphalt concrete, which is a mixture of mineral aggregate, crushed stone or crushed gravel, stone chips or sand, mineral powder, etc. with a certain proportion of road asphalt material, prepared under strict control conditions. The mixture is formed by re-mixing the removed asphalt concrete with new asphalt to achieve the desired road performance, which is called asphalt concrete waste recycling.

[0003] In the prior art, asphalt needs to be kept at high temperature to have good fluidity, so the general asphalt concrete waste recycling process needs to be completed in a factory, which makes the asphalt concrete waste recycling work more complicated. In addition, in the prior art, other equipment is needed to assist in the asphalt concrete waste recycling work to realize the conveying work of asphalt, which reduces the practicability of the existing asphalt concrete recycling device. SUMMARY

[0004] The present application aims to provide a movable asphalt concrete waste recycling device to solve the technical problems in the prior art.

[0005] The present application provides a movable asphalt concrete waste recycling device, comprising:

[0006] A base is provided with a box at the top, and a storage box is arranged in the box;

[0007] A fixed cylinder is fixed to the top of the base, and a stirring assembly is rotatably arranged in the fixed cylinder;

[0008] A power assembly is arranged at the top of the fixed cylinder, and the power assembly is used to drive the stirring assembly to work;

[0009] A reflux assembly is arranged at the bottom of the fixed cylinder, and the reflux assembly is communicated with the box;

[0010] An asphalt conveying assembly is arranged on the inner wall of the box, and the asphalt conveying assembly and the stirring assembly are in transmission cooperation, and the asphalt conveying assembly and the stirring assembly are communicated;

[0011] A heating assembly is arranged at the bottom of the box.

[0012] Preferably, universal wheels are arranged at the four corners of the bottom of the base, and a cover is hingedly connected to the top of the box.

[0013] Preferably, the stirring assembly comprises:

[0014] A roller is rotationally arranged on the inner wall of the fixed cylinder.

[0015] A spiral plate is fixed on the inner wall of the roller.

[0016] A hollow shaft is fixed on the end of the roller, and the hollow shaft and the roller are in communication, the hollow shaft penetrates the inner wall of the box, and the hollow shaft and the box are rotationally connected.

[0017] An end cover is hingedly arranged on the end of the roller.

[0018] Preferably, the power assembly comprises:

[0019] A fixed plate is fixed on the top of the fixed cylinder.

[0020] A second gear is rotationally arranged on the side wall of the fixed plate, and a motor is fixed on the other side wall of the second gear, and the output shaft of the motor and the second gear are fixed.

[0021] A first gear is rotationally arranged on the end of the fixed cylinder, and the first gear is fixedly sleeved on the roller, and the first gear and the second gear are in meshing engagement.

[0022] Preferably, the asphalt conveying assembly comprises:

[0023] A shell is fixed on the inner wall of the box, two third gears are rotationally arranged in the shell, the two third gears are in meshing engagement, the hollow shaft penetrates the shell, one of the third gears is fixedly sleeved on the hollow shaft, and the other hollow shaft side wall is fixed with a rotating shaft, and the rotating shaft penetrates the shell.

[0024] A material extraction pipe is arranged through the top of the shell, and the material extraction pipe penetrates the inner side wall of the storage tank.

[0025] A conveying pipe is arranged through the bottom of the shell.

[0026] A connecting pipe is fixed on the side wall of the storage tank, and the connecting pipe and the hollow shaft are in rotational communication, and the conveying pipe penetrates the inner wall of the connecting pipe.

[0027] Preferably, the heating assembly comprises:

[0028] An electric heating pipe is fixed on the inner wall of the box.

[0029] Preferably, the reflux assembly comprises:

[0030] A cylinder is fixed on the inner wall of the fixed cylinder, and a one-way valve is arranged on the end of the cylinder, and the one-way valve penetrates the inner wall of the box.

[0031] A supporting plate is fixed on the inner wall of the fixing cylinder, and a hydraulic push rod is arranged through the side wall of the supporting plate, and a piston is arranged at the telescopic end of the hydraulic push rod, and the piston is matched with the cylinder body.

[0032] Preferably, further comprising:

[0033] An annular seat is fixed on the side wall of the shell, and the rotating shaft penetrates the inner wall of the annular seat;

[0034] A plurality of fan leaves are arranged in the annular seat, and the plurality of fan leaves are fixed at equal distances on the side wall of the rotating shaft;

[0035] A gas supply pipe and a gas extraction pipe are arranged through the side wall of the annular seat;

[0036] A solenoid valve is arranged at the end of the gas supply pipe, and the solenoid valve penetrates the inner wall of the fixing cylinder;

[0037] A self-operated pressure regulating valve is arranged through the side wall of the gas supply pipe.

[0038] Compared with the prior art, the beneficial effects of the present application are:

[0039] (1) The power assembly, the stirring assembly and the asphalt conveying assembly are arranged, the power assembly drives the stirring assembly to work, the asphalt conveying assembly is driven to work at the same time in the working process of the stirring assembly, the asphalt in the storage box is input into the stirring assembly, the asphalt and the waste material are mixed, and the asphalt concrete waste material is regenerated.

[0040] (2) The third gear, the shell, the material extraction pipe and the conveying pipe are arranged, one of the third gears is driven to rotate by the hollow shaft in the rotating process of the roller, and then the two third gears are rotated, the asphalt in the storage box is extracted into the shell through the material extraction pipe in the rotating process of the two third gears, and then the asphalt is conveyed into the connecting pipe through the conveying pipe and flows into the roller through the hollow shaft, and the adding work of the asphalt is realized. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0042] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0043] Figure 2 is the fixed cylinder and the roller structure schematic diagram of the present application;

[0044] Figure 3 is the fixed cylinder sectional view structure schematic diagram of the present application;

[0045] Figure 4 is the roller sectional view structure schematic diagram of the present application;

[0046] Figure 5 is the backflow assembly structure schematic diagram of the present application;

[0047] Figure 6 is the box body sectional view structure schematic diagram of the present application;

[0048] Figure 7 is the box body and the storage tank sectional view structure schematic diagram of the present application;

[0049] Figure 8 is the shell, the material extraction pipe and the conveying pipe structure schematic diagram of the present application;

[0050] Figure 9 is the shell sectional view structure schematic diagram of the present application;

[0051] Figure 10 is the annular seat sectional view structure schematic diagram of the present application.

[0052] Reference signs:

[0053] 1, base; 2, universal wheel; 3, box body; 4, cover body; 5, fixed cylinder; 6, motor; 7, first gear; 8, end cover; 9, second gear; 10, roller; 11, hollow shaft; 12, cylinder body; 13, check valve; 14, support plate; 15, hydraulic push rod; 16, piston; 17, spiral plate; 18, storage tank; 19, electric heating pipe; 20, electromagnetic valve; 21, shell; 22, material extraction pipe; 23, connecting pipe; 24, rotating shaft; 25, conveying pipe; 26, third gear; 27, air extraction pipe; 28, fan blade; 29, air supply pipe; 30, self-operated pressure regulating valve; 31, fixed plate; 32, annular seat. DETAILED DESCRIPTION

[0054] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0055] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0056] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0059] The following is combined with Figures 1 to 10 As shown, this embodiment of the invention provides a mobile asphalt concrete waste recycling and treatment device, comprising:

[0060] Base 1, with a box 3 on top of base 1, and a storage box 18 inside the box 3;

[0061] Fixed cylinder 5 is fixed to the top of base 1, and a stirring component is rotatably installed inside the fixed cylinder 5;

[0062] The power unit is located at the top of the fixed cylinder 5 and is used to drive the stirring unit to work.

[0063] A reflux assembly is located at the bottom of the fixed cylinder 5 and is connected to the housing 3.

[0064] The asphalt conveying assembly is installed on the inner wall of the box 3, and the asphalt conveying assembly and the mixing assembly form a transmission cooperation and are connected to each other.

[0065] Heating component, which is located at the bottom of housing 3.

[0066] In use, the power unit drives the mixing unit to work. During the operation of the mixing unit, the asphalt conveying unit is also driven to work, so as to input the asphalt in the storage tank 18 into the mixing unit, mix the asphalt and waste, and realize the recycling of asphalt concrete waste.

[0067] Furthermore, casters 2 are provided at the four corners of the bottom of the base 1, and a cover 4 is hinged to the top of the box 3.

[0068] The universal wheels 2 facilitate the movement of this device.

[0069] Furthermore, the stirring assembly includes:

[0070] Roller 10 is rotatably mounted on the inner wall of fixed cylinder 5;

[0071] Spiral plate 17 is fixed on the inner wall of drum 10;

[0072] Hollow shaft 11 is fixed to the end of roller 10 and is connected to roller 10. Hollow shaft 11 penetrates the inner wall of box 3 and is rotatably connected to box 3.

[0073] End cap 8 is hinged to the end of roller 10.

[0074] After the waste recycling process is completed, the second gear 9 is driven by the motor 6 to rotate in the opposite direction, so that the drum 10 rotates in the opposite direction. This, together with the spiral plate 17 in the drum 10, moves the material in the drum 10 to the end cover 8. Once the end cover 8 is opened, the recycled material can be output from the drum 10.

[0075] Furthermore, the powertrain components include:

[0076] Fixing plate 31, fixing plate 31 is fixed to the top of fixing cylinder 5;

[0077] The second gear 9 is rotatably mounted on the side wall of the fixed plate 31, and the motor 6 is fixed on the other side wall of the second gear 9. The output shaft of the motor 6 is fixed to the second gear 9.

[0078] The first gear 7 is rotatably disposed at the end of the fixed cylinder 5 and is fixedly sleeved on the roller 10. The first gear 7 and the second gear 9 mesh with each other.

[0079] When the switch of motor 6 is turned on, motor 6 drives the second gear 9 to rotate, which in turn drives the drum 10 to rotate through the first gear 7.

[0080] Furthermore, the asphalt conveying assembly includes:

[0081] The housing 21 is fixed to the inner wall of the box 3. Two third gears 26 are rotatably arranged inside the housing 21. The two third gears 26 mesh with each other. A hollow shaft 11 passes through the housing 21. One of the third gears 26 is fixedly sleeved on the hollow shaft 11. A rotating shaft 24 is fixed to the side wall of the other hollow shaft 11 and passes through the housing 21.

[0082] The material extraction pipe 22 is installed through the top of the housing 21 and also through the inner wall of the storage box 18.

[0083] The conveying pipe 25 is disposed through the bottom of the housing 21;

[0084] The connecting pipe 23 is fixed on the side wall of the storage box 18, and the connecting pipe 23 and the hollow shaft 11 are rotatably connected. The conveying pipe 25 passes through the inner wall of the connecting pipe 23.

[0085] During the rotation of the drum 10, the hollow shaft 11 drives one of the third gears 26 to rotate, which in turn causes both third gears 26 to rotate. During the rotation of the two third gears 26, the asphalt in the storage tank 18 is drawn into the shell 21 through the extraction pipe 22, and then the asphalt is transported to the connecting pipe 23 through the conveying pipe 25. It then flows into the drum 10 through the hollow shaft 11, thus realizing the asphalt addition.

[0086] Furthermore, the heating component includes:

[0087] Heating element 19 is fixed to the inner wall of the box 3.

[0088] Furthermore, the reflow component includes:

[0089] The cylinder 12 is fixed on the inner wall of the fixed cylinder 5. A one-way valve 13 is provided at the end of the cylinder 12 and the one-way valve 13 penetrates the inner wall of the box 3.

[0090] Support plate 14 is fixed on the inner wall of fixed cylinder 5. Hydraulic push rod 15 is provided through the side wall of support plate 14. Piston 16 is provided at the telescopic end of hydraulic push rod 15 and piston 16 is adapted to cylinder 12.

[0091] After the gas between the fixed cylinder 5 and the drum 10 is liquefied, the resulting water remains at the bottom of the fixed cylinder 5. After the work is finished, the switch of the hydraulic push rod 15 is turned on. When the hydraulic push rod 15 is working, it drives the piston 16 to move, so that the piston 16 enters the cylinder 12. As the piston 16 continues to move, the water in the cylinder 12 is input into the box 3 through the one-way valve 13 for the next work.

[0092] Furthermore, it also includes:

[0093] The annular seat 32 is fixed to the side wall of the housing 21, and the rotating shaft 24 passes through the inner wall of the annular seat 32.

[0094] Multiple fan blades 28 are all disposed within the annular seat 32, and the multiple fan blades 28 are fixed at equal intervals on the side wall of the rotating shaft 24.

[0095] Air supply pipe 29 and air extraction pipe 27 are both installed through the side wall of the annular seat 32.

[0096] Solenoid valve 20 is located at the end of air supply pipe 29 and penetrates the inner wall of fixed cylinder 5.

[0097] The self-operated pressure regulating valve 30 is installed through the side wall of the air supply pipe 29.

[0098] When not in regeneration operation, the solenoid valve 20 needs to be turned off. At this time, as the air pressure in the air supply pipe 29 continues to rise, the steam in the air supply pipe 29 is output through the self-regulating pressure regulating valve 30, so that the steam flows between the box 3 and the storage box 18, thereby increasing the heat preservation effect on the asphalt in the storage box 18 and ensuring the fluidity of the asphalt.

[0099] The specific working method is as follows: When using, open the cover 4 and pour the asphalt into the storage box 18 for storage;

[0100] Turn on the switch of the electric heating tube 19 and fill the space between the box 3 and the storage box 18 with pure water. When the electric heating tube 19 is working, it heats the pure water, so that the space between the box 3 and the storage box 18 is filled with high-temperature water vapor to heat the asphalt in the storage box 18.

[0101] When recycling waste materials, open the end cover 8, pour the waste material into the drum 10, close the end cover 8, turn on the switch of the motor 6, and when the motor 6 is working, drive the second gear 9 to rotate, which in turn drives the drum 10 to rotate through the first gear 7. During the rotation of the drum 10, one of the third gears 26 is driven to rotate through the hollow shaft 11, which in turn causes both third gears 26 to rotate. During the rotation of the two third gears 26, the asphalt in the storage box 18 is drawn into the shell 21 through the extraction pipe 22, and then the asphalt is transported to the connecting pipe 23 through the conveying pipe 25, and flows into the drum 10 through the hollow shaft 11, thus realizing the asphalt addition work.

[0102] When the solenoid valve 20 is switched on, the third gear 26 drives the shaft 24 to rotate during rotation, which in turn causes the fan blades 28 in the annular seat 32 to rotate. When the fan blades 28 rotate, they drive the gas flow in the annular seat 32. When the gas moves to the gas supply pipe 29, under the action of centrifugal force, the gas enters the space between the fixed cylinder 5 and the drum 10 through the gas supply pipe 29 and the solenoid valve 20. The drum 10 is heated by high-temperature steam. With the rotation of the drum 10, the asphalt and waste are fully mixed to achieve the waste recycling work.

[0103] After the waste recycling process is completed, the second gear 9 is driven by the motor 6 to rotate in the opposite direction, so that the drum 10 rotates in the opposite direction. This, together with the spiral plate 17 in the drum 10, moves the material in the drum 10 to the end cover 8. Once the end cover 8 is opened, the recycled material can be output from the drum 10.

[0104] After the gas between the fixed cylinder 5 and the drum 10 is liquefied, the water formed remains at the bottom of the fixed cylinder 5. After the work is finished, the switch of the hydraulic push rod 15 is turned on. When the hydraulic push rod 15 is working, it drives the piston 16 to move, so that the piston 16 enters the cylinder 12. As the piston 16 continues to move, the water in the cylinder 12 is input into the box 3 through the one-way valve 13 for the next work.

[0105] When not in regeneration operation, the solenoid valve 20 needs to be turned off. At this time, as the air pressure in the air supply pipe 29 continues to rise, the steam in the air supply pipe 29 is output through the self-regulating pressure regulating valve 30, so that the steam flows between the box 3 and the storage box 18, thereby increasing the heat preservation effect on the asphalt in the storage box 18 and ensuring the fluidity of the asphalt.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mobile asphalt concrete waste recycling and treatment device, characterized in that, include: A base (1) is provided with a box (3) on top of the base (1), and a storage box (18) is provided inside the box (3); A fixed cylinder (5) is fixed to the top of the base (1), and a stirring assembly is rotatably arranged inside the fixed cylinder (5); A power assembly is provided at the top of the fixed cylinder (5) and is used to drive the stirring assembly to work. A reflux assembly is provided at the bottom of the fixed cylinder (5) and is connected to the housing (3); An asphalt conveying assembly is installed on the inner wall of the box (3), and the asphalt conveying assembly and the mixing assembly form a transmission cooperation, and the asphalt conveying assembly and the mixing assembly are connected. Heating component, which is located at the bottom of the housing (3).

2. The mobile asphalt concrete waste recycling and treatment device according to claim 1, characterized in that, The base (1) is equipped with casters (2) at the four corners of the bottom, and the box (3) is hinged to the top of the cover (4).

3. The mobile asphalt concrete waste recycling and treatment device according to claim 1, characterized in that, The stirring assembly includes: A roller (10) is rotatably mounted on the inner wall of a fixed cylinder (5); Spiral plate (17), the spiral plate (17) is fixed on the inner wall of the drum (10); Hollow shaft (11), the hollow shaft (11) is fixed at the end of the roller (10) and the hollow shaft (11) is connected to the roller (10). The hollow shaft (11) penetrates the inner wall of the box (3) and the hollow shaft (11) is rotatably connected to the box (3). End cap (8), which is hinged to the end of the roller (10).

4. The mobile asphalt concrete waste recycling and treatment device according to claim 3, characterized in that, The power assembly includes: A fixing plate (31) is fixed to the top of the fixing cylinder (5); The second gear (9) is rotatably mounted on the side wall of the fixed plate (31), and a motor (6) is fixed on the other side wall of the second gear (9), and the output shaft of the motor (6) is fixed to the second gear (9); The first gear (7) is rotatably disposed at the end of the fixed cylinder (5) and is fixedly sleeved on the roller (10). The first gear (7) and the second gear (9) mesh with each other.

5. A mobile asphalt concrete waste recycling and treatment device according to claim 3, characterized in that, The asphalt conveying assembly includes: The housing (21) is fixed on the inner wall of the box (3). Two third gears (26) are rotatably arranged inside the housing (21). The two third gears (26) mesh with each other. The hollow shaft (11) passes through the housing (21). One of the third gears (26) is fixedly sleeved on the hollow shaft (11). The other hollow shaft (11) has a rotating shaft (24) fixed on its side wall, and the rotating shaft (24) passes through the housing (21). The material extraction pipe (22) is installed through the top of the housing (21) and through the inner wall of the storage box (18); A delivery pipe (25) is provided through the bottom of the housing (21); The connecting pipe (23) is fixed on the side wall of the storage box (18), and the connecting pipe (23) and the hollow shaft (11) are rotatably connected. The conveying pipe (25) passes through the inner wall of the connecting pipe (23).

6. A mobile asphalt concrete waste recycling and treatment device according to claim 1, characterized in that, The heating component includes: The heating element (19) is fixed on the inner wall of the box (3).

7. A mobile asphalt concrete waste recycling and treatment device according to claim 1, characterized in that, The reflow component includes: The cylinder (12) is fixed on the inner wall of the fixed cylinder (5). A one-way valve (13) is provided at the end of the cylinder (12), and the one-way valve (13) penetrates the inner wall of the box (3). Support plate (14) is fixed on the inner wall of fixed cylinder (5). A hydraulic push rod (15) is provided through the side wall of the support plate (14). A piston (16) is provided at the telescopic end of the hydraulic push rod (15), and the piston (16) is adapted to the cylinder (12).

8. A mobile asphalt concrete waste recycling and treatment device according to claim 5, characterized in that, Also includes: An annular seat (32) is fixed on the side wall of the housing (21), and the rotating shaft (24) passes through the inner wall of the annular seat (32); Multiple fan blades (28) are provided in the annular seat (32) and the multiple fan blades (28) are fixed at equal intervals on the side wall of the rotating shaft (24); Air supply pipe (29) and air extraction pipe (27) are both installed through the side wall of the annular seat (32); Solenoid valve (20) is located at the end of the air supply pipe (29) and penetrates the inner wall of the fixed cylinder (5); A self-operated pressure regulating valve (30) is installed through the side wall of the air supply pipe (29).

Citation Information

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