A dust removal structure suitable for a European pendulum flour mill

Abstract

The utility model relates to a dust removal structure suitable for European version pendulum flour mill, including the exhaust pipe that can be connected with the exhaust port of European version pendulum flour mill, install frame is embedded in the pipe cavity of exhaust pipe, and the dust removal filter screen that can divide the pipe cavity of exhaust pipe and carry out the filtration to the exhaust gas that is passing in the pipe cavity is clamped in install frame, the cleaning assembly that can clean the two side net surface of dust removal filter screen is arranged on both sides of dust removal filter screen, and the bottom of exhaust pipe still is arranged with the self -closing dust collection subassembly that can shift the impurity in pipe cavity, and the winding drive assembly that can mutually cooperate and tow the cleaning brush of cleaning assembly and carry on reciprocating up and down movement is still arranged on the top and bottom of exhaust pipe. The utility model can clean the impurity that is intercepted in the passageway under the continuous working state of not stopping and guarantee the passability of passageway and improve the effect and efficiency of filtration work.

Description

Technical Field

[0001] This utility model relates to the technical field of European-style pendulum mills, and in particular to a dust removal structure suitable for European-style pendulum mills. Background Technology

[0002] The European-style pendulum mill is the fifth generation of Raymond mills. Compared to traditional Raymond mills, the European-style mill adopts new technologies such as bevel gear integral transmission and grinding roller linkage pressurization, increasing production capacity by more than 20% at the same power, which can meet the large-scale and centralized production needs of weathered coal pulverization projects. Compared to traditional Raymond mills, the European-style pendulum mill constructs a negative pressure airflow circulation loop, thereby using the reciprocating negative pressure airflow to screen and transfer powder materials. The negative pressure state maintained inside the system effectively reduces dust leakage, thereby reducing the dust concentration in the equipment environment, improving processing safety, and reducing the threat to the health of operators. The European-style pendulum mill is also equipped with an exhaust pipe connected in parallel with the return air pipe of the airflow circulation loop, so as to discharge some of the excess waste gas to ensure the stability of the negative pressure state inside the European-style pendulum mill. During the operation of the European-style pendulum mill, its exhaust port can divert some of the excess waste gas by adjusting the working state of the valve body inside the exhaust port. The waste gas is then filtered by the dust removal structure on the exhaust pipe before being discharged into the external environment, thereby effectively reducing the pollution when the excess waste gas is discharged.

[0003] For example, patent application CN202221717840.6 discloses a pendulum mill that uses a double-plate structure to filter exhaust gas, ensuring environmental friendliness. However, the double-plate structure in this application cannot effectively clean impurities trapped by the plates. Patent application CN202322125689.8 discloses a pendulum mill that uses a screw drive structure to move a cleaning brush up and down to clean the filter screen. This avoids the gradual increase in temperature of the friction surfaces of the first and second filters after prolonged operation, preventing the heat and sparks generated by friction in a dusty environment from easily causing dust explosions and fires. Furthermore, by designing the filter screen as easily detachable, it cleans accumulated dust, preventing impurities accumulating at the bottom of the pipe from clogging the bottom of the filter screen. However, while the aforementioned screw drive structure can achieve continuous cleaning without disassembly to a certain extent, as a transmission structure requiring high precision, the screw surface is highly susceptible to the adhesion of dust and other impurities carried by exhaust gas. This leads to gaps in the threaded connection between the screw and the threaded drive sleeve on the shaft, allowing impurities to enter and affecting the smoothness of transmission. Furthermore, impurities can cause abnormal wear on the threaded connection surface during transmission, shortening the thread life and affecting the working performance and operating time of the screw drive structure. This results in the cleaning mechanism being unable to operate effectively for extended periods, requiring frequent component maintenance and replacement, significantly increasing operating and maintenance costs. In addition, existing dust removal structures cannot clean the impurities filtered and intercepted during continuous operation. Under prolonged continuous operation, impurities accumulate internally, clogging the bottom of the filter screen, affecting the unobstructed flow and volume of the exhaust channel, and greatly reducing the working effect and efficiency of the dust removal structure. Utility Model Content

[0004] The purpose of this invention is to provide a dust removal structure suitable for European-style pendulum mills that can clean impurities intercepted in the channel during continuous operation without stopping the machine, thus ensuring the unobstructed flow of the channel and improving the effectiveness and efficiency of filtration. This structure also incorporates a double-sided traction cleaning structure to thoroughly clean both sides of the filter screen. This addresses the problem that existing dust removal structures accumulate intercepted and filtered impurities in the channel, making it impossible to transfer these accumulated impurities during continuous operation. This results in structures unsuitable for long-term, uninterrupted operation and fails to meet the environmental emission requirements of the mill during extended continuous operation. Furthermore, the screw drive structure inside existing mills is highly susceptible to erosion and movement obstruction by dust particles, leading to easy damage and reduced lifespan of structural components.

[0005] The technical solution adopted by this utility model is as follows: a dust removal structure suitable for a European-style pendulum mill, including an exhaust pipe that can be connected to the exhaust port of the European-style pendulum mill, an installation frame embedded in the cavity of the exhaust pipe, and a dust removal filter screen that can separate the cavity of the exhaust pipe and filter the exhaust gas passing through the cavity is clamped in the installation frame, cleaning components that can clean the mesh surface on both sides of the dust removal filter screen are arranged opposite each other, and a self-closing dust collection component that can transfer impurities in the cavity is also arranged at the bottom of the exhaust pipe, and two sets of winding drive components that can cooperate with each other to pull the cleaning brush of the cleaning component to move back and forth up and down.

[0006] According to a preferred embodiment, an upper expansion cavity is provided at the top of the exhaust pipe to accommodate the cleaning component during non-working periods; side expansion cavities are vertically aligned on both sides of the exhaust pipe, and the two sets of side expansion cavities are symmetrically arranged along the plane of the dust filter.

[0007] According to a preferred embodiment, the cleaning assembly includes a cleaning brush, a lifting main plate, and a guide slide rod. The cleaning brush is mounted on the lifting main plate facing the dust filter, and the two ends of the vertically placed lifting main plate are movably sleeved on the guide slide rod. The guide slide rod is vertically inserted into the inner cavity of the side expansion strip cavity in a manner parallel to the slotting direction of the side expansion strip cavity, and the axial upper end of the guide slide rod extends and is inserted into the upper expansion tube cavity.

[0008] According to a preferred embodiment, the take-up roller of the take-up drive assembly is rotatably supported on the outer wall of the exhaust pipe by a positioning support plate. A traction steel rope is wound on the roller body of the take-up roller. The end of the traction steel rope away from the take-up roller is deflected by a steering pulley supported on the outer wall of the exhaust pipe and then passes into the cavity of the exhaust pipe to connect with the lifting main plate. A forward and reverse drive motor capable of driving the take-up roller to rotate rotatably around an axis is also provided on the plate surface of the positioning support plate.

[0009] According to a preferred embodiment, a slotted shielding pipe shell is also inserted into the exhaust pipe and arranged parallel to the guide slide rod, and the axial opening strip of the slotted shielding pipe shell is movably embedded in the side notch of the lifting main board.

[0010] According to a preferred embodiment, tethering loops that can be connected to the rope ends of the pulling steel rope are provided on both the top and bottom surfaces of the lifting main board.

[0011] According to a preferred embodiment, a push rod is also provided on the bottom surface of the lifting main board, which can push open the cover plate of the self-closing dust collection assembly by pushing it down.

[0012] According to a preferred embodiment, a wear-resistant rubber sleeve is inserted into the wall of the exhaust pipe, and the pulling steel rope passes through the wear-resistant rubber sleeve.

[0013] According to a preferred embodiment, the self-closing dust collection assembly includes a strip-shaped insert head inserted into the bottom wall of the exhaust pipe, a variable-diameter connecting pipe connected to the output end of the strip-shaped insert head, and a dust collection box connected to the output end of the variable-diameter connecting pipe.

[0014] According to a preferred embodiment, a shielding cover plate capable of blocking its input port is connected to the strip-shaped connector via a rotating shaft horizontally inserted into its inner wall, and a limiting torsion spring capable of limiting the initial working posture of the shielding cover plate is also sleeved on the rotating shaft.

[0015] The beneficial effects of this utility model are:

[0016] The cleaning components in this application can reciprocate and scrape under the traction of the winding drive component, thereby ensuring the cleanliness of the dust collector filter. In particular, the two sets of cleaning components arranged in alignment can achieve double-sided cleaning of the dust collector filter, ensuring the unobstructed flow of the mesh and effectively maintaining the filtration effect and quality of the dust collector filter during continuous operation. The self-closing dust collection component in this application can transfer impurities accumulated in the channel during non-stop filtration operation, effectively preventing impurities from clogging the mesh while ensuring the unobstructed flow of the channel to guarantee the filtration effect. The winding drive component in this application uses a pull rope structure instead of a traditional screw drive structure to reduce the impact of exhaust dust on the operation of the lifting drive structure, reduce the risk of damage, improve drive stability and working life, reduce maintenance frequency and costs, and achieve low-cost, long-term, high-efficiency dust removal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a preferred dust removal structure for a European-style pendulum mill proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of a preferred dust removal structure for a European-style pendulum mill during slag discharge, as proposed in this utility model.

[0019] Figure 3 This is a partially enlarged structural diagram of point A of a preferred dust removal structure for a European-style pendulum mill proposed in this utility model;

[0020] Figure 4 This is a partially enlarged structural diagram of point B of a preferred dust removal structure for a European-style pendulum mill proposed in this utility model.

[0021] Figure 5 This is a top plan view of a preferred dust removal structure for a European-style pendulum mill proposed in this utility model. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are for the purpose of helping to understand this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and do not have any sequential or technical meaning.

[0024] The following is a detailed explanation with reference to the accompanying drawings. Example

[0025] This application provides a dust removal structure suitable for European-style pendulum mills, which includes an exhaust pipe 1, a mounting frame 2, a dust removal filter 3, a cleaning component 4, a self-closing dust collection component 5, and a winding drive component 6.

[0026] according to Figure 1-5In one specific embodiment, the exhaust pipe 1 is connected to the exhaust port of the European-style pendulum mill to discharge excess waste gas. The exhaust port of the European-style pendulum mill is also connected to a return gas pipe that can recycle the waste gas. This return gas pipe is installed in parallel with the exhaust pipe 1, and its output end is connected to the inlet volute, thereby recirculating the waste gas output from the European-style pendulum mill. This allows the gas to circulate repeatedly through the European-style pendulum mill in a closed-loop circulation path, achieving powder traction and separation. A mounting frame 2 is embedded in the cavity of the exhaust pipe 1. A dust collector filter 3 is installed within the mounting frame 2 to separate the cavity of the exhaust pipe 1 and filter the waste gas passing through it. Cleaning components 4 are arranged on both sides of the dust collector filter 3 to clean its surface. The bottom of the exhaust pipe 1 is also equipped with a self-closing dust collection component 5, which can transfer impurities in the pipe cavity and collect the impurities intercepted by the dust removal filter 3 and cleaned by the cleaning component 4. At the top and bottom of the exhaust pipe 1, two sets of winding drive components 6 are also provided, which can cooperate to pull the cleaning brushes 41 of the cleaning component 4 to move back and forth up and down. The exhaust pipe 1 provided in this application can perform preliminary filtration of dust and other impurities in the exhaust gas. The output end of the exhaust pipe 1 is also equipped with a particulate removal structure such as an electrostatic precipitator to further filter fine particles and ensure the environmental friendliness of the exhaust gas discharge. The cleaning component 4 provided in this application can perform reciprocating scraping and cleaning under the traction of the winding drive component 6, thereby ensuring the cleanliness of the dust removal filter 3. In particular, the two sets of cleaning components 4 arranged in a symmetrical manner can achieve double-sided cleaning of the dust removal filter 3 to ensure the unobstructed flow of the mesh and effectively maintain the continuous filtration effect and quality of the dust removal filter 3. The self-closing dust collection component 5 provided in this application can transfer impurities accumulated in the channel during non-stop filtration operation, effectively preventing impurities from clogging the mesh while ensuring the unobstructed flow of the channel and thus guaranteeing the filtration effect. The winding drive component 6 provided in this application replaces the traditional screw drive structure with a pull rope structure, reducing the impact of exhaust dust on the lifting drive structure, lowering the risk of damage, improving drive stability and service life, thereby reducing maintenance frequency and costs, and achieving low-cost, long-term, high-efficiency dust removal.

[0027] Preferably, an upper expansion cavity 11 is provided at the top of the exhaust pipe 1 to accommodate the cleaning component 4 during non-working periods. Preferably, side expansion cavities 12 are vertically aligned on both sides of the exhaust pipe 1. More preferably, the two sets of side expansion cavities 12 are symmetrically arranged along the plane of the dust filter 3, forming four parallel side expansion cavities 12 on both sides of the dust filter 3 that communicate with the upper expansion cavity 11. Preferably, a wear-resistant rubber sleeve 13 is inserted into the wall of the exhaust pipe 1. Specifically, the pull steel rope 63 passes through the wear-resistant rubber sleeve 13 so that the wear-resistant rubber sleeve 13 effectively fills the gap between the pull steel rope 63 and the wall of the exhaust pipe 1, preventing the exhaust gas containing entrained powder from overflowing and causing environmental pollution. Furthermore, the wear-resistant rubber sleeve 13 can scrape off impurities adhering to the surface of the pull steel rope 63, ensuring the cleanliness of the surface of the pull steel rope 63 after it leaves the exhaust pipe 1. Specifically, the wear-resistant rubber sleeve 13 is inserted into the hole in the wall of the exhaust pipe 1 through which the tension steel rope 63 passes by an interference fit. As a conventional consumable part, the wear-resistant rubber sleeve 13 can maintain high scraping and cleaning performance and sealing and filling performance through periodic replacement. Specifically, the wear-resistant rubber sleeve 13 has a cut-and-split sleeve structure, allowing it to be fitted onto the tension steel rope 63 by widening the vertical slit. More preferably, a connecting foot is provided on the large-diameter outer ring surface of the wear-resistant rubber sleeve 13, so that the screw inserted into the connecting foot limits the working position of the wear-resistant rubber sleeve 13 by inserting into the wall of the exhaust pipe 1. More preferably, the inner ring surface of the wear-resistant rubber sleeve 13 in contact with the tension steel rope 63 is coated with an anti-wear coating to improve its wear resistance and extend its service life. The upper expansion cavity 11 provided in this application can accommodate the cleaning component 4 during non-cleaning working periods by utilizing the resulting auxiliary cavity space, thereby reducing the wear of the cleaning component 4 by dust airflow. It also prevents excessive deposition of dust and other impurities on the surface of the cleaning component 4, ensuring its service life and subsequent cleaning ability, and preventing excessive impurities from falling off during cleaning, thus increasing dust concentration. The side expansion cavities 12 provided in this application can also conceal the guide structure of the cleaning component 4, preventing it from being directly blown by airflow. The upper expansion cavity 11 and the side expansion cavities 12 also prevent the cleaning component 4 from occupying additional space in the airflow channel, thus reducing the minimum cross-sectional size of the channel and ensuring that the exposed cross-section of the dust filter 3 is large enough to guarantee that the filtration efficiency and flow rate meet the dust removal processing requirements.

[0028] Preferably, the mounting frame 2 is connected to the inner wall of the exhaust pipe 1 by welding, snap-fit ​​positioning, or other methods, so that the plane of the mounting frame 2 is perpendicular to the axis of the exhaust pipe 1. Preferably, the mounting frame 2 includes an outer frame and an inner frame, with the inner frame fitted into the stepped annular groove formed by the outer frame, thereby pressing and positioning the edge of the dust filter 3 in the stepped annular groove to ensure the stability of the connection between the mounting frame 2 and the dust filter 3. The outer frame and the inner frame can be connected effectively by positioning screws inserted into the inner frame, and both can be easily disassembled for replacement and maintenance of the dust filter 3 as needed, facilitating the use of dust filters 3 with different mesh sizes for different filtration requirements.

[0029] Preferably, the cleaning component 4 includes a cleaning brush 41, a lifting main plate 42, and a guide slide rod 43. Preferably, the cleaning brush 41 is mounted on the surface of the lifting main plate 42 facing the dust filter 3. Preferably, the two ends of the vertically positioned lifting main plate 42 are movably sleeved on the guide slide rod 43. Preferably, the guide slide rod 43 is vertically inserted into the inner cavity of the side expansion slot cavity 12 in a manner parallel to the slotting direction of the side expansion slot cavity 12. More preferably, the axial upper end of the guide slide rod 43 extends and is inserted into the upper expansion tube cavity 11. Preferably, a slotted shielding tube shell 44 arranged parallel to the guide slide rod 43 is also inserted into the exhaust pipe 1. Specifically, the cleaning brush 41 is detachably mounted on the lifting main plate 42 via bolts, allowing it to move up and down with the lifting main plate 42. This enables the cleaning brush 41, which maintains a structurally similar structure to the dust filter screen 3, to move horizontally up and down, cleaning impurities from the screen surface and mesh openings. This ensures the cleanliness of the dust filter screen 3, allowing it to efficiently and continuously filter exhaust gas, guaranteeing filtration efficiency and effectiveness. The slotted shielding shell 44 provided in this application can shield the pulling steel cable 63, reducing the corrosive damage from exhaust dust. This application arranges two cleaning components 4 aligned on both sides of the dust filter screen 3, ensuring that impurities intercepted by the dust filter screen 3 and those adhering to its surface are effectively cleaned, thus maintaining the cleanliness of the dust filter screen 3.

[0030] Preferably, the axially open edge strip 441 of the slotted shielding tube shell 44 is movably embedded in the side notch 421 of the lifting main plate 42 to help limit the lifting stability of the lifting main plate 42. Preferably, the slotted shielding tube shell 44 is only provided upstream of the cleaning component 4 on the exhaust gas input side, so that the slotted shielding tube shell 44 upstream of the traction steel rope 63 can prevent dust exhaust gas from directly rubbing against the traction steel rope 63, thereby improving the durability and lifespan of the traction steel rope 63 to a certain extent. Preferably, a tethering ring 422 that can be connected to the rope end of the traction steel rope 63 is provided on both the top and bottom surfaces of the lifting main plate 42. Preferably, the tethering ring 422 can be directly welded to the surface of the lifting main plate 42. Preferably, a push rod 423 that can push open the shielding cover plate 512 of the self-closing dust collection component 5 is also provided on the bottom surface of the lifting main plate 42. When the lifting main board 42 descends, the downward push rod 423 can push the cover plate 512 to rotate around the rotating shaft 511 and open the input port of the strip plug connector 51 that was blocked by it, so that the impurities accumulated at the bottom of the inner cavity of the exhaust pipe 1 can fall into the dust collection box 53, thereby preventing the accumulated impurities from blocking the dust filter screen 3 and affecting its filtration capacity, thus ensuring the smooth flow of the exhaust pipe 1.

[0031] Preferably, the self-closing dust collection assembly 5 includes a strip-shaped insert head 51 inserted into the bottom wall of the exhaust pipe 1 and adapted to the width of the dust filter screen 3, a variable diameter connecting pipe 52 connected to the output end of the strip-shaped insert head 51, and a dust collection box 53 connected to the output end of the variable diameter connecting pipe 52. Preferably, a shielding cover 512 capable of sealing its input port is connected inside the strip-shaped insert head 51 via a rotating shaft 511 horizontally inserted into its inner wall. More preferably, a limiting torsion spring 513 capable of limiting the initial working posture of the shielding cover 512 is also sleeved on the rotating shaft 511. The strip-shaped insert head 51 provided in this application can communicate with the cavity of the exhaust pipe 1 to adjustably transfer accumulated impurities. The limiting torsion spring 513 can limit the initial working posture of the shielding cover 512, so that the shielding cover 512 separates the cavity of the strip-shaped insert head 51 from the cavity of the exhaust pipe 1 during non-cleaning periods, so that the dust collection box 53 can be disassembled and cleaned under continuous filtration, thereby ensuring the ability to transfer impurities during long-term filtration.

[0032] Preferably, the take-up roller 61 of the take-up drive assembly 6 is rotatably supported on the outer wall of the exhaust pipe 1 by the alignment support plate 62. Preferably, a traction steel rope 63 is wound on the roller body of the take-up roller 61. Preferably, the end of the traction steel rope 63 away from the take-up roller 61 is turned by a steering pulley 64 supported on the outer wall of the exhaust pipe 1 and then passes into the cavity of the exhaust pipe 1 to connect with the lifting main plate 42. Preferably, a forward and reverse drive motor 65 capable of driving the take-up roller 61 to rotate rotatably around an axis is also provided on the plate surface of the alignment support plate 62. The two take-up drive assemblies 6, which are aligned and arranged at the top and bottom of the exhaust pipe 1, are respectively connected to the top and bottom surfaces of the lifting main plate 42 by the traction steel rope 63, so that the two take-up drive assemblies 6 pull the lifting main plate 42 and the cleaning brush 41 to produce a controllable reciprocating lifting motion by cooperating with each other to synchronously rotate the take-up and unwinding wires respectively. Specifically, when the top forward and reverse drive motor 65 starts to rotate, the bottom forward and reverse drive motor 65 simultaneously rotates to unwind the wire. This allows the two motors to work together to shorten and lengthen the two sections of traction steel rope 63 on the lifting main plate 42, thus coordinating and limiting the vertical movement of the lifting main plate 42, effectively completing the scraping and cleaning of the dust filter screen 3. Preferably, the winding roller 61 has shafts at both ends, which are rotatably inserted into the body of the alignment support plate 62. One shaft is connected to the forward and reverse drive motor 65 by passing through the body of the alignment support plate 62. Preferably, the forward and reverse drive motor 65 can be a PYDE-300 bidirectional geared motor, allowing for forward and reverse rotation for a certain duration as needed to achieve the winding and unwinding of the traction steel rope 63. Preferably, the traction steel rope 63 is a single-strand metal rope with a certain degree of toughness. Preferably, the forward and reverse drive motor 65 is connected to the alignment support plate 62 by a support foot welded to the surface of its motor body and a connecting bolt passing through the foot. The connecting bolt is threaded into the alignment support plate 62 to limit the position of the support foot on the alignment support plate 62.

[0033] Preferably, the electrical components such as the forward and reverse drive motor 65 involved in this application are all electrically connected to the controller and the power supply. The control method of this application is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is only used to protect the mechanical device and its mechanical structural features. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0034] For surface connections between components not explicitly specified in this application, conventional bolt connections, snap-fit ​​connections, or fixed connections such as welding can be used. As these are conventional connection methods, this application will not elaborate further on this part. Specifically, the connecting ends of the assembled components all form flange structures, and the two flange structures are connected by bolts, gaskets, or other structures.

[0035] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A dust removal structure suitable for a European-style pendulum mill, comprising an exhaust pipe (1) capable of connecting to the exhaust port of the European-style pendulum mill, characterized in that, An installation frame (2) is installed in the cavity of the exhaust pipe (1), and a dust removal filter (3) is installed in the installation frame (2) to separate the cavity of the exhaust pipe (1) and filter the exhaust gas passing through the cavity. Cleaning components (4) capable of cleaning the mesh surface on both sides are arranged opposite each other on the dust removal filter (3), and a self-closing dust collection component (5) capable of transferring impurities in the pipe cavity is also arranged at the bottom of the exhaust pipe (1). Two sets of winding drive components (6) are also provided at the top and bottom of the exhaust pipe (1) to pull the cleaning brush (41) of the cleaning component (4) to move back and forth up and down.

2. The dust removal structure for a European-style pendulum mill as described in claim 1, characterized in that, An upper expansion cavity (11) is provided at the top of the exhaust pipe (1) to accommodate the cleaning component (4) during non-working periods. Side expansion cavities (12) are vertically opened on both sides of the exhaust pipe (1), and the two sets of side expansion cavities (12) are symmetrically arranged along the plane of the dust removal filter (3).

3. The dust removal structure for a European-style pendulum mill as described in claim 2, characterized in that, The cleaning component (4) includes a cleaning brush (41), a lifting main plate (42), and a guide slide bar (43), wherein, The cleaning brush (41) is installed on the plate surface of the lifting main plate (42) facing the dust filter (3), and the two ends of the vertically placed lifting main plate (42) are movably sleeved on the guide slide rod (43). The guide slide rod (43) is vertically inserted into the inner cavity of the side expansion strip cavity (12) in a manner parallel to the slotting direction of the side expansion strip cavity (12), and the upper axial end of the guide slide rod (43) is extended and inserted into the upper expansion tube cavity (11).

4. The dust removal structure for a European-style pendulum mill as described in claim 3, characterized in that, The winding roller (61) of the winding drive assembly (6) is rotatably supported on the outer wall of the exhaust pipe (1) by the alignment support plate (62), and a tension steel rope (63) is wound on the roller body of the winding roller (61). The end of the pulling steel rope (63) away from the winding roller (61) is turned by the turning fixed pulley (64) supported on the outer wall of the exhaust pipe (1) and then enters the cavity of the exhaust pipe (1) and is connected to the lifting main board (42). A forward and reverse drive motor (65) capable of driving the take-up roller (61) to rotate about an axis in a directional manner is also provided on the plate surface of the alignment support plate (62).

5. The dust removal structure for a European-style pendulum mill as described in claim 4, characterized in that, A slotted shielding pipe shell (44) is also inserted into the exhaust pipe (1) and arranged in parallel with the guide slide rod (43), and the axial opening strip (441) of the slotted shielding pipe shell (44) is movably embedded in the side notch (421) of the lifting main plate (42).

6. The dust removal structure for a European-style pendulum mill as described in claim 5, characterized in that, The top and bottom surfaces of the lifting main board (42) are provided with tethering rings (422) that can be connected to the rope head of the pulling steel rope (63).

7. The dust removal structure for a European-style pendulum mill as described in claim 6, characterized in that, The bottom surface of the lifting main board (42) is also provided with a push rod (423) that can push open the cover plate (512) of the self-closing dust collection assembly (5) by pushing it down.

8. The dust removal structure for a European-style pendulum mill as described in claim 7, characterized in that, A wear-resistant rubber sleeve (13) is inserted into the wall of the exhaust pipe (1), and the pulling steel rope (63) passes through the wear-resistant rubber sleeve (13).

9. The dust removal structure for a European-style pendulum mill as described in claim 8, characterized in that, The self-closing dust collection assembly (5) includes a strip-shaped insert head (51) inserted into the bottom wall of the exhaust pipe (1), a variable diameter connecting pipe (52) connected to the output end of the strip-shaped insert head (51), and a dust collection box (53) connected to the output end of the variable diameter connecting pipe (52).

Images