Dust removal device for crusher

Abstract

The utility model relates to the technical field of aluminum oxide production equipment, in particular to a dust removal device for a crusher (300), which comprises a dust cover and a negative pressure component. The dustproof cover is located at the feeding port, the folding support is connected with the dustproof cloth, the driving structure enables the folding support to be unfolded during normal work, the dustproof cloth is unfolded to cover partial area of the feeding port to form a closed space to prevent dust diffusion, and at the moment, the air inlet is opened. After the fan of the negative pressure assembly is started, suction force is generated through a negative pressure pipe, and dust is sucked into an air inlet and then sucked away by the fan. When the equipment is stopped or maintained, the folding support is folded, the dustproof cloth is folded accordingly, and the air inlet is closed to facilitate cleaning and maintenance. The folding support of the device can be switched, so that the use convenience and the maintenance efficiency are improved; the negative pressure assembly ensures efficient dust collection; the whole structure is simple, manufacturing, installation and maintenance are easy, cost is low, and practicability and economical efficiency are high.

Description

Technical Field

[0001] This utility model relates to the technical field of alumina production equipment, and more specifically, to a dust removal device for a crusher. Background Technology

[0002] In the Bayer-sintering process for alumina production, bauxite requires crushing to ensure efficient subsequent leaching and sintering. To improve crushing efficiency and particle size, bauxite typically undergoes coarse crushing, fine crushing, and grinding. In the coarse crushing stage, a jaw crusher breaks down large pieces of ore into smaller particles. The coarsely crushed bauxite is then fed to a cone crusher or impact crusher for fine crushing. These crushers further break the bauxite to even smaller particle sizes, typically around 10mm to 20mm. The finely crushed bauxite particles are then fed to a ball mill or rod mill for grinding, which refines the particles to the desired size, typically 0.1mm to 0.3mm. Existing jaw crushers, cone crushers, or impact crushers typically operate in an open-face design, generating large amounts of bauxite dust during operation, posing a safety hazard. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a dust removal device for a crusher, which can reduce dust in an open crusher.

[0004] A dust removal device for a crusher according to an embodiment of the present utility model includes:

[0005] A dust cover is installed at the feed inlet of the crusher. The dust cover includes a folding support and a dustproof cloth. The dustproof cloth is connected to the outer side of the folding support. A driving structure is provided on the folding support, which can control the folding support to switch between an unfolded state and a folded state. An air inlet is provided on the dustproof cloth. When the folding support is in the unfolded state, the air inlet is in the open state, and when the folding support is in the folded state, the air inlet is in the closed state.

[0006] A negative pressure component, which includes a fan and a negative pressure pipe, and the negative pressure pipe is connected to the air inlet.

[0007] According to some embodiments of the present invention, the folding support includes a movable support, an auxiliary support, and a fixed support; the fixed support is fixedly connected to the crusher; the movable support is rotatably connected to the fixed support; multiple auxiliary supports are provided, and the multiple auxiliary supports are rotatably arranged between the fixed support and the movable support.

[0008] According to some embodiments of the present invention, the folding support includes a sleeve, and the movable bracket, the auxiliary bracket and the fixed bracket are all door frame-type structures, with the two ends of the movable bracket, the auxiliary bracket and the fixed bracket respectively rotatably mounted on the sleeve.

[0009] According to some embodiments of the present invention, the driving structure includes a drive shaft and a control rod, the sleeve and the drive shaft are rotatably connected, the control rod and the drive shaft are fixedly connected, the movable bracket is provided with control grooves on both sides along the length direction, the control rod is provided with a stop block, and the stop block is embedded in the control groove.

[0010] According to some embodiments of the present invention, control rockers are respectively provided at both ends of the drive shaft.

[0011] According to some embodiments of this utility model, the control rocker is an L-shaped handle.

[0012] According to some embodiments of the present invention, the control rockers on both sides of the drive shaft are centrally symmetrical.

[0013] According to some embodiments of the present invention, the drive shaft and the control rod are connected by a spline.

[0014] According to some embodiments of this utility model, the dustproof cloth is made of nylon material.

[0015] According to some embodiments of this utility model, the negative pressure pipe is a corrugated pipe.

[0016] A dust removal device for a crusher according to an embodiment of the present utility model has at least the following beneficial effects:

[0017] According to the present invention, the dust removal device for a crusher includes a dust cover and a negative pressure assembly. The dust cover is installed at the crusher's feed inlet, with a folding support serving to support the dust cover cloth, and its outer side connected to the dust cover cloth. When the crusher is operating normally, the drive structure controls the folding support to switch to the unfolded state, at which point the dust cover cloth unfolds, covering part of the crusher's feed inlet and forming a relatively enclosed space to prevent dust from spreading to the surrounding area. Simultaneously, because the folding support is in the unfolded state, the air inlet on the dust cover cloth is open. After the fan in the negative pressure assembly starts, it generates suction through the negative pressure pipe. Because the negative pressure pipe is connected to the air inlet on the dust cover cloth, a negative pressure environment is formed at the air inlet. Under this negative pressure, dust generated at the crusher's feed inlet is drawn into the air inlet and then sucked away by the fan along the negative pressure pipe, thus effectively collecting dust and preventing dust from spreading in the working area. When the crusher stops operating or when maintenance of the dust cover is required, the drive structure controls the folding support to switch to the folded state. As the folding support folds, the dust cover also folds up, closing the air inlet. Closing the air inlet prevents external debris from entering the dust cover and also facilitates cleaning and maintenance of the dust cover and the area around the crusher feed inlet. By installing a dust cover at the crusher feed inlet, which unfolds during operation to create a relatively enclosed space, dust emissions are significantly reduced, improving the working environment and lowering the risk of occupational diseases caused by dust inhalation for operators. It also reduces dust pollution to surrounding equipment and the environment.

[0018] According to the present invention, the folding support is equipped with a drive structure, which can freely switch between an unfolded state and a folded state. The unfolded state is used for dust protection during normal operation, while the folded state facilitates equipment maintenance, repair, and cleaning, thereby improving the ease of use and maintenance efficiency of the equipment.

[0019] According to the present invention, a negative pressure component is connected to the air inlet of the dustproof cloth, and the negative pressure generated by the fan is used to promptly suck away the dust, ensuring efficient dust collection, further enhancing the dustproof effect, and helping to achieve clean production.

[0020] According to the present invention, the entire dust cover structure is mainly composed of folding supports, dustproof cloth and negative pressure components. The structure is relatively simple, easy to manufacture, install and maintain, and has relatively low cost, making it highly practical and economical. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an installation structure according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model;

[0023] Figure 3For the present utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0024] Figure 4 This is a perspective structural diagram of the present invention;

[0025] Figure 5 This is an enlarged schematic diagram of a partial structure of this utility model.

[0026] In the picture:

[0027] 100-Dust cover, 101-Folding support, 110-Dustproof cloth, 111-Air inlet, 120-Drive structure, 121-Drive shaft, 1211-Control rocker, 122-Control lever, 1221-Stop, 130-Modible bracket, 131-Control slot, 140-Auxiliary bracket, 150-Fixed bracket, 160-Sleeve;

[0028] 200 - Negative pressure component, 210 - Negative pressure pipe;

[0029] 300 - Crusher, 310 - Feed inlet. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0032] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Reference Figure 1As shown in the figure, this utility model discloses a dust removal device for a crusher 300, including a dust cover 100 and a negative pressure component 200. The dust cover 100 is installed over the feed inlet 310 of the crusher 300 and includes a folding support 101 and a dustproof cloth 110. The dustproof cloth 110 is connected to the outer side of the folding support 101. A drive structure 120 is provided on the folding support 101, which can control the folding support 101 to switch between an unfolded state and a folded state. An air inlet 111 is provided on the dustproof cloth 110; the air inlet 111 is open when the folding support 101 is unfolded and closed when the folding support 101 is folded. The negative pressure component 200 includes a fan and a negative pressure pipe 210, which is connected to the air inlet 111. Specifically, in this embodiment, the dust cover 100 is installed at the feed inlet 310 of the crusher 300. The folding support 101 serves to support the dust cover 110, and its outer side is connected to the dust cover 110. When the crusher 300 is operating normally, the drive structure 120 controls the folding support 101 to switch to the unfolded state. At this time, the dust cover 110 unfolds accordingly, covering part of the feed inlet 310 of the crusher 300, forming a relatively closed space to prevent dust from spreading to the surroundings. At the same time, since the folding support 101 is in the unfolded state, the air inlet 111 on the dust cover 110 is in the open state. After the fan in the negative pressure assembly 200 is started, it generates suction through the negative pressure pipe 210. Because the negative pressure pipe 210 is connected to the air inlet 111 on the dust cover 110, a negative pressure environment is formed at the air inlet 111. Under this negative pressure, dust generated at the feed inlet 310 of the crusher 300 is drawn into the air inlet 111 and then sucked away by the fan along the negative pressure pipe 210, thus effectively collecting dust and preventing it from spreading in the working area. When the crusher 300 stops working or when maintenance of the dust cover 100 is required, the drive structure 120 controls the folding support 101 to switch to the folding state. As the folding support 101 folds, the dust cover 110 also folds up, at which point the air inlet 111 closes. Closing the air inlet 111 prevents external debris from entering the dust cover 100 and also facilitates cleaning and maintenance of the dust cover 100 and the area around the feed inlet 310 of the crusher 300. By installing the dust cover 100 at the feed inlet 310 of the crusher 300, and unfolding it during operation to form a relatively enclosed space, dust emissions are greatly reduced, the working environment is improved, the risk of occupational diseases caused by dust inhalation for operators is reduced, and dust pollution to surrounding equipment and the environment is also reduced. The folding support 101 is equipped with a drive structure 120, which can freely switch between the unfolded and folded states. The unfolded state is used for dust protection during normal operation, while the folded state facilitates equipment maintenance, repair, and cleaning, thus improving the ease of use and maintenance efficiency of the equipment.By connecting the negative pressure component 200 to the air inlet 111 of the dustproof cloth 110, the negative pressure generated by the fan promptly removes dust, ensuring efficient dust collection and further enhancing the dustproof effect, thus contributing to clean production. In this embodiment, the entire dust cover 100 structure mainly consists of a folding support 101, a dustproof cloth 110, and a negative pressure component 200. The structure is relatively simple, easy to manufacture, install, and maintain, and has relatively low cost, making it highly practical and economical.

[0035] In some embodiments of this utility model, the folding support 101 includes a movable support 130, an auxiliary support 140, and a fixed support 150; the fixed support 150 is fixedly connected to the crusher 300; the movable support 130 and the fixed support 150 are rotatably connected; multiple auxiliary supports 140 are provided, and the multiple auxiliary supports 140 are rotatably arranged between the fixed support 150 and the movable support 130. Specifically, in this embodiment, the fixed support 150 plays a role in stabilizing the foundation of the entire folding support 101 structure, and it is fixedly connected to the crusher 300. This fixed connection method ensures that the folding support 101 can be stably installed at the feed inlet 310 of the crusher 300, and will not be displaced due to vibrations or other factors during the operation of the crusher 300, providing a stable working platform for the reliable operation of the dust cover 100. The movable support 130 is rotatably connected to the fixed support 150, allowing it to rotate around the connection point with the fixed support 150. Based on this rotational characteristic, the movable support 130 can change its position under the control of the drive structure 120, thereby driving the connected dust cover 110 to unfold or fold, adapting to the different working requirements of the crusher 300. Multiple auxiliary supports 140 are provided, rotatably positioned between the fixed support 150 and the movable support 130. These multiple auxiliary supports 140 form a linked support relationship between the fixed support 150 and the movable support 130. When the movable support 130 rotates under the action of the drive structure 120, the auxiliary supports 140 rotate accordingly, providing auxiliary support and guiding the smooth movement of the movable support 130. On one hand, the auxiliary supports 140 enhance the stability of the entire folding support 101 structure, ensuring that the structure does not deform or become damaged during unfolding and folding; on the other hand, they make the rotation of the movable support 130 smoother and more precise, ensuring that the dust cover 100 can accurately switch between unfolded and folded states, effectively improving the working performance and reliability of the dust cover 100.

[0036] In some embodiments of this utility model, the folding support 101 includes a sleeve 160, and the movable bracket 130, auxiliary bracket 140, and fixed bracket 150 are all door frame structures. The two ends of the movable bracket 130, auxiliary bracket 140, and fixed bracket 150 are rotatably mounted on the sleeve 160. Specifically, in this embodiment, the sleeve 160 serves as a connecting hub in the entire folding support 101 structure. It is typically made of highly wear-resistant brass, and the sleeve 160 provides a rotational support point for the movable bracket 130, auxiliary bracket 140, and fixed bracket 150. The rotation of all brackets revolves around the sleeve 160, enabling the brackets to work collaboratively to achieve the unfolding and folding functions of the folding support 101 structure.

[0037] In some embodiments of this utility model, the drive structure 120 includes a drive shaft 121 and a control rod 122. A sleeve 160 is rotatably connected to the drive shaft 121, and the control rod 122 is fixedly connected to the drive shaft 121. The movable bracket 130 has control grooves 131 on both sides along its length. A stop block 1221 is provided on the control rod 122 and is embedded in the control groove 131. Specifically, in this embodiment, the sleeve 160 serves as a support component for the rotation of each bracket in the folding support 101 and is rotatably connected to the drive shaft 121. This connection allows the drive shaft 121 to rotate relative to the sleeve 160, providing a basis for power transmission for subsequent control of the folding support 101's movements. The control rod 122 is fixedly connected to the drive shaft 121. When the drive shaft 121 rotates, the control rod 122 rotates synchronously. When the drive shaft 121 drives the control rod 122 to rotate, the stop block 1221 on the control rod 122 drives the movable bracket 130 to rotate. During the unfolding process, as the drive shaft 121 rotates, the stop 1221 on the control rod 122 moves in a specific direction along the control groove 131, pushing the movable bracket 130 to rotate around the sleeve 160. Simultaneously, it drives the auxiliary bracket 140 to move in coordination, causing the folding support 101 to gradually change from a folded state to an unfolded state, thereby unfolding the dustproof cloth 110 to protect the feed inlet 310 of the crusher 300. During the folding process, the drive shaft 121 rotates in the opposite direction, and the control rod 122 rotates in the opposite direction accordingly. The stop 1221 moves in the opposite direction within the control groove 131, pulling the movable bracket 130 to rotate in the folding direction. The auxiliary bracket 140 also cooperates accordingly, ultimately causing the folding support 101 to return to the folded state, and the dustproof cloth 110 folds accordingly.

[0038] In some embodiments of this utility model, control rockers 1211 are respectively provided at both ends of the drive shaft 121. Specifically, in this embodiment, the control rockers 1211 are located at both ends of the drive shaft 121. This layout design fully considers the operational needs of operators in different positions. Regardless of which side of the equipment the operator is on, they can easily access and operate the control rockers 1211. Compared with a single-position control method, this dual-sided arrangement greatly improves operational flexibility and reduces the time and effort spent by operators in finding a suitable operating position, especially suitable for work scenarios with limited space or variable operating positions. During equipment operation, some unexpected situations may occur that require emergency adjustment of the dust cover 100. The control rockers 1211 at both ends of the drive shaft 121 provide more possibilities for emergency operations. When one side of the control rocker 1211 malfunctions or cannot be operated, the operator can quickly use the other side of the control rocker 1211 to complete the necessary operations, ensuring the safe operation of the equipment and the effectiveness of dust prevention measures.

[0039] In some embodiments of this invention, the control joystick 1211 is an L-shaped handle. Specifically, in this embodiment, the L-shaped handle actually increases the length of the operating lever arm. According to the lever principle, the longer the lever arm, the greater the torque generated when the same force is applied. This means that when the operator operates the L-shaped handle, only a small force is needed to generate a large rotational force for the drive shaft 121, making it easier to overcome the resistance encountered during the unfolding or folding of the folding support 101, making the operation easier and smoother, especially when dealing with more stubborn resistance.

[0040] In some embodiments of this invention, the control rockers 1211 on both sides of the drive shaft 121 are centrally symmetrical. Specifically, in this embodiment, the centrally symmetrical control rockers 1211 help maintain the force balance of the drive shaft 121. During operation, the force applied by the rockers on both sides can be evenly distributed on the drive shaft 121, avoiding the problem of the drive shaft 121 shifting, aggravating wear, or even being damaged due to excessive force on one side. This balanced mechanical structure not only extends the service life of the drive shaft 121 but also ensures the stability of the entire drive structure 120, enabling the folding support 101 to operate more smoothly and steadily during unfolding and folding.

[0041] In some embodiments of this utility model, the drive shaft 121 and the control rod 122 are connected by a spline. Specifically, in this embodiment, one of the main features of the spline connection is its excellent torque transmission capability. The toothed structure of the spline significantly increases the contact area between the drive shaft 121 and the control rod 122, allowing it to withstand greater torque compared to ordinary key connections or other simple connection methods. In the drive structure 120 of the dust cover 100, when the operator rotates the drive shaft 121 by controlling the rocker arm 1211, the drive shaft 121 needs to accurately transmit torque to the control rod 122, thereby driving the stop block 1221 to move within the control slot 131 of the movable bracket 130, realizing the unfolding and folding action of the folding support 101 structure. The spline connection ensures stable and reliable torque transmission throughout the process, preventing slippage or loosening due to excessive torque, thus guaranteeing the normal operation of the drive structure 120.

[0042] In some embodiments of this utility model, the dustproof cloth 110 is made of nylon. Specifically, in this embodiment, the nylon material has high strength and excellent wear resistance. During the operation of the crusher 300, the feed inlet 310 will generate strong material impact and friction, and the dustproof cloth 110 needs to withstand a large external force. The high strength of nylon enables it to resist the impact of materials and is not easily damaged; while its good wear resistance ensures that the surface of the dustproof cloth 110 is not easily worn during long-term contact with materials and frequent folding and unfolding, thus extending the service life of the dustproof cloth 110 and reducing the frequent replacement costs and downtime caused by damage to the dustproof cloth 110.

[0043] In some embodiments of this invention, the negative pressure pipe 210 is a corrugated pipe. Specifically, in this embodiment, the corrugated pipe is typically made of a material with a certain degree of elasticity, such as plastic or rubber. This gives it excellent flexibility, allowing it to easily adapt to various complex layouts and orientations during installation. Within the limited and irregular space around the crusher 300, the corrugated pipe can be flexibly bent, bypassing other equipment components, and smoothly connected to the required location without requiring extensive cutting and splicing like rigid pipes, greatly simplifying the installation process and saving installation time and costs.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A dust removal device for a crusher (300), characterized in that, The dust cover (100) covers the inlet (310) of the crusher (300), and the dust cover (100) comprises a folding support (101) and a dust cloth (110); the outer side of the dust cloth (110) and the folding support (101) is connected; the folding support (101) is provided with a driving structure (120), which can control the folding support (101) to switch between the unfolded state and the folded state; the dust cloth (110) is provided with an air inlet (111), and the air inlet (111) is in the open state when the folding support (101) is in the unfolded state, and the air inlet (111) is in the closed state when the folding support (101) is in the folded state; The negative pressure assembly (200) is provided with a fan and a negative pressure pipe (210), and the negative pressure pipe (210) and the air inlet (111) are communicated. The folding support (101) comprises a movable support (130), an auxiliary support (140) and a fixed support (150); the fixed support (150) is fixedly connected with the crusher (300); the movable support (130) and the fixed support (150) are rotatably connected; the auxiliary support (140) is provided with a plurality of auxiliary supports (140), and the plurality of auxiliary supports (140) are rotatably arranged between the fixed support (150) and the movable support (130).

2. The dust removal device for a crusher (300) according to claim 1, characterized in that, The folding support (101) comprises a sleeve (160), and the movable support (130), the auxiliary support (140) and the fixed support (150) are all door frame type structures, and two ends of the movable support (130), the auxiliary support (140) and the fixed support (150) are rotatably arranged on the sleeve (160).

3. The dust removal device for a crusher (300) according to claim 2, characterized in that, The driving structure (120) comprises a driving shaft (121) and a control rod (122), the sleeve (160) and the driving shaft (121) are rotatably connected, the control rod (122) and the driving shaft (121) are fixedly connected, the movable support (130) is provided with a control groove (131) on both sides along the length direction, the control rod (122) is provided with a stop block (1221), and the stop block (1221) is embedded in the control groove (131).

4. The dust removal device for a crusher (300) according to claim 3, characterized in that, Both ends of the driving shaft (121) are provided with control rocker arms (1211).

5. The dust removal device for a crusher (300) according to claim 4, characterized in that, The control rocker arms (1211) are L-shaped handles.

6. The dust removal device for a crusher (300) according to claim 5, characterized in that, The control rocker arms (1211) on both sides of the driving shaft (121) are centrally symmetric.

7. The dust removal device for a crusher (300) according to claim 6, characterized in that, The driving shaft (121) and the control rod (122) are connected through spline.

8. The dust removal device for a crusher (300) according to claim 4, characterized in that, The dust cloth (110) is made of nylon material.

9. The dust removal device for a crusher (300) according to claim 1, characterized in that, The negative pressure pipe (210) is a corrugated pipe.

10. The dust removal device for a crusher (300) according to claim 1, characterized in that, ​

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