A non-powered dust suppression and removal device

Abstract

This application relates to a non-powered dust suppression and removal device, specifically within the technical field of belt conveyor dust treatment equipment. The dust removal device includes a head guide hood with a horizontal opening facing the upper conveyor belt. A curved material drop pipe is connected to one side of the head guide hood, and a sealed material guide channel is connected to its lower end. The sealed material guide channel is horizontally positioned and capable of conveying material. The lower end of the curved material drop pipe is inclined downwards towards the conveying direction of the sealed material guide channel, and an arc-shaped bend is provided on the curved material drop pipe facing away from the conveying direction of the sealed material guide channel. This application optimizes the design of the head guide hood and the curved material drop pipe, transforming the disordered vertical fall of material into an ordered slide, thereby reducing the induced wind generated by the material flow at the outlet of the curved material drop pipe and thus reducing dust generation.

Description

Technical Field

[0001] This application relates to the technical field of dust treatment equipment for belt conveyors, and in particular to a non-powered dust suppression and removal device. Background Technology

[0002] Belt conveyors are widely used in transportation industries such as mines, power plants, and coal yards. Each process of a belt conveyor, including coal loading, conveying, transferring, and unloading, generates a significant amount of dust, with the transportation process being the most severe. During the feeding process, the collision between the material and the feeding pipe produces dust particles. Furthermore, the induced wind generated at the outlet of the feeding pipe causes the dust to gain considerable kinetic energy, propelling it out of the equipment and into the air, causing serious pollution to the working environment.

[0003] Currently, traditional transfer systems transport materials from the upper conveyor belt to the receiving belt through structures such as head guide hoods, head funnels, and drop pipes, and are equipped with sealed guide trough structures to prevent dust from spilling out during the transfer process.

[0004] Typical transfer systems are designed based on the concept of "material feeding," and most of the current material discharge pipes are straight, which are simple in structure and easy to process and install. However, when the material has low moisture content, the collision between materials and between materials and the material discharge pipe during the falling process will generate a lot of dust. In addition, the material falls vertically onto the receiving belt, causing a violent impact on the belt and reducing its service life. In this process, a large amount of induced wind is also generated, causing a large amount of dust to be scattered in the equipment, and even material spillage may occur.

[0005] Domestic material handling systems cannot guarantee that no dust is released into the air during the transport of bulk materials. Dust concentrations in the workplaces of most material handling systems exceed safety standards, seriously endangering workers' health. While existing non-powered dust collection devices are described as "non-powered," they still often incorporate additional spray devices or external dust collection systems to aid dust suppression and achieve the desired effect. Some non-powered dust collection devices also require external bag filters or other auxiliary dust collection equipment for comprehensive dust removal, or they may incorporate spray devices within the non-powered dust collection unit to further reduce dust.

[0006] Regarding the aforementioned technologies, the aforementioned non-powered dust removal device does not achieve true non-powered operation and requires auxiliary devices to achieve the dust removal effect. Summary of the Invention

[0007] The purpose of this application is to provide a non-powered dust suppression and removal device capable of achieving non-powered dust removal.

[0008] The non-powered dust suppression and removal device provided in this application adopts the following technical solution:

[0009] A non-powered dust suppression and removal device includes a head guide hood, which has an opening on one side in the horizontal direction and faces the upward conveyor belt. A curved material drop pipe is connected to one side of the head guide hood, and a sealed material guide channel is connected to the lower end of the curved material drop pipe. The sealed material guide channel is horizontally arranged and can transport materials. The lower end of the curved material drop pipe is inclined downward in the conveying direction of the sealed material guide channel, and an arc-shaped bend is provided on the curved material drop pipe that is opposite to the conveying direction of the sealed material guide channel.

[0010] By adopting the above technical solution, the material conveyed on the upper conveyor belt is able to collide with the inner wall of the head guide hood through projectile motion and fall down along the head guide hood. Compared with vertically feeding the material into the curved drop pipe, the head guide hood allows the material to enter the curved drop pipe in an orderly manner, reducing dust stirring. The curved design of the curved drop pipe keeps the pressure of the material flow (dust-laden airflow) balanced at the outlet of the curved drop pipe and the drop point of the sealed guide channel, minimizing the induced wind speed during material fall. The sealed guide channel ensures that the material conveying is sealed, preventing dust from escaping. By optimizing the design of the head guide hood and the curved drop pipe, the disordered vertical fall of the material is transformed into an orderly slide, reducing the induced wind generated by the material flow at the outlet of the curved drop pipe, thereby reducing dust generation.

[0011] Optionally, a return pipe is provided on one side of the curved material drop pipe, with the two ends of the return pipe spaced apart in the vertical direction. The higher end of the return pipe in the vertical direction is connected to the curved material drop pipe, and the lower end of the return pipe in the vertical direction is connected to the sealed material guide channel.

[0012] By adopting the above technical solution, the return pipe is connected to the curved material drop pipe at its higher vertical end, and to the sealed material guide channel at its lower vertical end. Thus, when the material falls into the curved material drop pipe, the airflow creates a significant pressure difference between a certain height on the curved material drop pipe and a point in the lower sealed material guide channel. Utilizing this pressure difference, the return pipe is connected at this point, allowing the dust-laden airflow in the sealed material guide channel to enter the return pipe under the pressure difference, and then re-enter the curved material drop pipe, achieving a swirling of the dust-laden airflow. The dust-laden airflow collides and adheres with the vertically falling material flow, forming large particles, which then settle under gravity.

[0013] Optionally, an expansion groove is provided on the inner wall of the sealed material guiding channel, the expansion groove is interconnected with the sealed material guiding channel, and a dust curtain is provided on the inner wall of the sealed material guiding channel, the dust curtain being positioned close to the expansion groove.

[0014] By adopting the above technical solution, the dust curtain can block the movement direction of dust in the dust-laden airflow. When the dust impacts the dust curtain, it will flow back into the expansion tank. The expansion tank causes the dust-laden airflow to generate a vortex. During the collision and circulation process here, some dust particles settle down. Due to the impact, circulation and centrifugal separation in the closed channel, the dust particles eventually deplete their energy and fall onto the receiving belt to complete the dust removal.

[0015] Optionally, the dust curtain includes a first curtain, a second curtain, a third curtain, and a vertical telescopic mechanism. The first curtain and the second curtain are spaced apart along the thickness direction. The third curtain is disposed between the first curtain and the second curtain, and the third curtain is slidably connected to the first curtain and the second curtain on both sides along the thickness direction in the vertical direction. The upper vertical end of the third curtain is provided with a vertical telescopic mechanism that can drive the third curtain to rise and fall in the vertical direction.

[0016] By adopting the above technical solution, the dust curtain has a three-layer structure of a first curtain, a second curtain, and a third curtain, which ensures the strength of the dust curtain. The third curtain is located between the first curtain and the second curtain, and the third curtain is slidably connected to the first curtain and the second curtain in the vertical direction on both sides along the thickness direction. The upper vertical part of the third curtain is provided with a vertical telescopic mechanism that can drive the third curtain to rise and fall in the vertical direction. Thus, the third curtain can be raised and lowered by using the vertical telescopic mechanism, which can increase the length of the dust curtain and change the sealing effect of the dust curtain on the sealing material guide channel, thereby changing the dust suppression and dust removal effect.

[0017] Optionally, dust sensors are installed both inside and outside the sealed material guide channel, and the dust sensors are electrically connected to a control box, which is located outside the sealed material guide channel; a spray pipe capable of spraying water is installed inside the sealed material guide channel.

[0018] By adopting the above technical solution, the dust concentration inside and outside the self-circulating dust suppression and removal device can be monitored in real time through the setting of dust sensors. When the dust concentration increases sharply or the dust suppression and removal device fails, the spray pipe is opened to achieve the purpose of forced dust reduction, and as a protective device, it ensures that the dust concentration is within a controllable range.

[0019] Optionally, an installation box is detachably connected inside the sealed material guide channel. The installation box is interconnected with the sealed material guide channel. The installation box is arranged through the conveying direction of the sealed material guide channel. An expansion groove is opened on the inner wall of the installation box. The expansion groove is interconnected with the installation box. A dust curtain is provided inside the installation box on the side away from the curved discharge pipe. The dust curtain closes the installation box.

[0020] By adopting the above technical solution, the dust curtain in the installation box, together with the expansion tank, can generate vortices in the dust airflow to achieve dust reduction; the sealed material guide channel is detachably connected to the installation box, which can change the number of installation boxes and the length of the sealed material guide channel according to the actual use environment, thereby improving the applicability of the dust removal device.

[0021] Optionally, an expansion block is provided on the top of the mounting box in the vertical direction. The expansion block is arranged along the width direction of the sealed material guide channel. The expansion groove is opened in the expansion block, and the expansion block is interconnected with the mounting box in the vertical direction. The expansion block is located on the side of the mounting box near the curved discharge pipe.

[0022] By adopting the above technical solution, the expansion block is set on the top of the mounting box. The setting of the expansion block provides space for opening the expansion slot and ensures the wall thickness of the mounting box; at the same time, the setting of the expansion block ensures that an expansion slot of the required size can be opened.

[0023] Optionally, the sealing material guide channel has vertically formed mounting grooves on both sides of the opposite side wall, and the mounting box has vertically formed mounting strips on both sides of the outer wall, with the mounting strips slidingly connected to the inner wall of the corresponding mounting groove in the vertical direction.

[0024] By adopting the above technical solution, the installation groove and installation strip are designed to enable a detachable connection between the installation box and the sealed material guide channel.

[0025] Optionally, the sealing material guide channel is provided with locking mechanisms on both opposite side walls. The locking mechanism includes a locking hole opened on the inner wall of the mounting groove. A first electromagnet is fixed on the inner wall of the locking hole. A locking pin is slidably inserted into the locking hole. A return spring is provided between the locking pin and the first electromagnet. The two ends of the return spring are respectively connected to the locking pin and the first electromagnet. The mounting strip is provided with auxiliary holes that can communicate with the locking holes.

[0026] By adopting the above technical solution, the locking mechanism is set on the opposite side walls of the sealed material guide channel. By controlling the first electromagnet to turn on and off, and in conjunction with the reset spring, the locking pin can be controlled to slide in the locking hole. When the locking pin is inserted into the auxiliary hole, the mounting box can be locked. The setting of the locking mechanism can increase the fixing effect of the mounting box on the sealed material guide channel.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By optimizing the design of the head guide hood and the curved discharge pipe, the material is transformed from falling randomly in a vertical direction to sliding in an orderly manner, which reduces the induced wind generated by the material flow at the outlet of the curved discharge pipe, thereby reducing dust generation.

[0029] 2. Due to the airflow inside the curved feed pipe, a significant pressure difference is created between a certain height point on the curved feed pipe and a point in the lower sealed feed channel. Utilizing this pressure difference, a return pipe is connected at this point, allowing the dust-laden airflow in the sealed feed channel to enter the return pipe under the pressure difference, and then re-enter the curved feed pipe, achieving a swirling of the dust-laden airflow. The dust-laden airflow collides and adheres with the vertically falling material flow, forming large particles, which then settle under the influence of gravity.

[0030] 3. The dust curtain can block the movement direction of dust in the dust-laden airflow. When the dust impacts the dust curtain, it will flow back into the expansion tank. The expansion tank causes the dust-laden airflow to generate a vortex. During the collision and circulation process here, some dust particles settle down. Due to the impact, circulation and centrifugal separation in the closed channel, the dust particles eventually lose energy and fall onto the receiving belt to complete the dust removal. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the dust suppression and removal device according to Embodiment 1 of this application.

[0032] Figure 2 This is a cross-sectional structural schematic diagram of the dust suppression and removal device of Embodiment 1 of this application.

[0033] Figure 3 This is a schematic diagram of the overall structure of the dust curtain in Embodiment 1 of this application.

[0034] Figure 4 This is a schematic diagram of the overall structure of the dust suppression and removal device according to Embodiment 2 of this application.

[0035] Figure 5 This is a schematic diagram of the overall structure of the installation box in Embodiment 2 of this application.

[0036] Figure 6 This is a cross-sectional view of the dust suppression and removal device according to Embodiment 2 of this application;

[0037] Figure 7 yes Figure 6 A magnified view of part A in the diagram.

[0038] Figure 8 This is a schematic diagram of the overall structure of the installation box in Embodiment 2 of this application.

[0039] Figure 9 This is a cross-sectional structural diagram of the installation box of Embodiment 2 of this application.

[0040] Figure 10 yes Figure 8 A magnified view of part B in the diagram.

[0041] Figure 11 yes Figure 9 A magnified view of part C in the middle.

[0042] In the diagram, 1. Head guide hood; 2. Curved discharge pipe; 21. Arc-shaped bend; 3. Sealed material guide channel; 31. Dust curtain; 311. First curtain; 312. Second curtain; 313. Third curtain; 314. Vertical telescopic mechanism; 32. Expansion block; 33. Expansion groove; 34. Mounting groove; 4. Return pipe; 5. Closing fitting; 6. Dust sensor; 7. Control box; 8. Spray pipe; 9. Mounting box; 91. Mounting strip; 9 2. Auxiliary hole; 10. Locking mechanism; 101. Locking hole; 102. First electromagnet; 103. Locking pin; 104. Return spring; 11. Connecting mechanism; 111. Mounting plate; 112. First sliding groove; 113. Connecting block; 1131. First rod; 1132. Connecting rod; 1133. Second rod; 114. Second electromagnet; 115. Connecting spring; 116. Second sliding groove; 117. Connecting hole. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1 -Appendix Figure 11 This application will be described in further detail below.

[0044] Example 1:

[0045] A non-powered dust suppression and removal device, referring to Figure 1 It includes a head guide hood 1, a curved material drop pipe 2 connected below the head guide hood 1, and a sealed material guide channel 3 connected at the lower end of the curved material drop pipe 2, so that the material can be fed in from the head guide hood 1 and then discharged through the sealed material guide channel 3 to realize material conveying.

[0046] Reference Figure 1 The head guide hood 1 has an opening on one side in the horizontal direction, and one end of the upper conveyor belt can be inserted into the head guide hood 1. This allows the material conveyed on the upper conveyor belt to collide with the inner wall of the head guide hood 1 through a projectile motion and fall down along the head guide hood 1. Compared with feeding the material vertically into the curved drop pipe 2, setting the head guide hood 1 allows the material to enter the curved drop pipe 2 in an orderly manner, reducing the raising of dust.

[0047] Reference Figure 1The curved discharge pipe 2 is set vertically, with the lower section of the curved discharge pipe 2 inclined downward toward the conveying direction of the sealed material guide channel 3, while the upper section of the curved discharge pipe 2 is inclined downward away from the conveying direction of the sealed material guide channel 3. An arc-shaped bend 21 is provided between the upper and lower sections of the curved discharge pipe 2, which is directed away from the conveying direction of the sealed material guide channel 3. The curved setting of the curved discharge pipe 2 keeps the pressure of the material flow (dust-containing airflow) at the outlet of the curved discharge pipe 2 and the discharge point of the sealed material guide channel 3 balanced, thereby minimizing the induced wind speed when the material falls.

[0048] Reference Figure 1 The sealed material guide channel 3 has closed baffles on both sides in the horizontal direction and a conveyor belt at the bottom in the vertical direction for conveying materials.

[0049] Reference Figure 1 A return pipe 4 is provided on one side of the curved material drop pipe 2. One end of the return pipe 4 is connected to the lower section of the curved material drop pipe 2, and the other end is connected to the sealed material guide channel 3 in the vertical direction. When the material falls in the curved material drop pipe 2, due to the airflow, a large pressure difference will be generated between a certain height position of the curved material drop pipe 2 and a certain point in the lower sealed material guide channel 3. Taking advantage of this pressure difference, the return pipe 4 is connected at this point, so that the dust airflow in the sealed material guide channel 3 enters the return pipe 4 under the action of pressure difference, and then re-enters the curved material drop pipe 2, realizing the swirling of the dust airflow. The dust airflow follows the airflow to the curved material drop pipe 2. The dust airflow collides and adheres with the vertically falling material flow to form large particles, so that the dust settles under the action of gravity.

[0050] Reference Figure 1 The return pipe 4 is inclined upward in a direction away from the curved material drop pipe 2, and the return pipe 4 is vertically connected to the sealed material guide channel 3. This can prevent the dust airflow in the curved material drop pipe 2 from flowing directly from the return pipe 4 into the sealed material guide channel 3, thus affecting the dust reduction effect of the return pipe 4.

[0051] Reference Figure 1 A constricting part 5 is provided on the sealed material guide channel 3. The constricting part 5 is narrowed in the vertical direction, with the lower end of the constricting part 5 connected to the sealed material guide channel 3 and the upper end of the constricting part 5 connected to the return channel in the vertical direction. The constricting part 5 is designed to facilitate the formation of negative pressure to return the dust airflow into the curved discharge pipe 2, and also facilitates the gathering of the dust airflow.

[0052] Reference Figure 2Two dust curtains 31 are installed inside the sealed material guide channel 3. The two dust curtains 31 are vertically arranged and spaced apart along the conveying direction of the sealed material guide channel 3. The curved drop pipe 2, return pipe 4 and closing part 5 are all arranged between the two dust curtains 31. The two sides and top of the dust curtains 31 in the horizontal direction are mutually sealed with the sealed material guide channel 3, so that the dust curtains 31 can seal the sealed material guide channel 3. Thus, the dust curtains 31 can allow the dust airflow to circulate in the sealed material guide channel 3 for multiple dust removals.

[0053] Reference Figure 2 An expansion block 32 is provided at the top of the sealed material guide channel 3 in the vertical direction. The length of the expansion block 32 is set along the width of the sealed material guide channel 3. An expansion groove 33 is opened in the expansion block 32. The expansion groove 33 is connected to the sealed material guide channel 3 in the vertical direction. A dust curtain 31 is provided in the sealed material guide channel 3. The dust curtain 31 is set on the side of the sealed material guide channel 3 close to the expansion groove 33 and on the side away from the curved drop pipe 2. Thus, the dust curtain 31 can block the movement direction of dust in the dust-laden airflow. Combined with the expansion groove 33, the dust-laden airflow generates a vortex. During the collision and circulation process here, some dust particles settle down. Due to the impact, circulation and centrifugal separation in the closed channel, the energy of the dust particles is finally exhausted and falls onto the receiving belt to complete the dust removal.

[0054] Reference Figure 2 Within the sealed material guide channel 3, a combination of several expansion troughs 33 and dust curtains 31 is arranged at intervals along the conveying direction. Several through holes are provided on the dust curtains 31 to ensure that the dust-laden airflow can flow. At the same time, the combination of multiple expansion troughs 33 and dust curtains 31 can perform multiple sedimentation of the dust-laden airflow and achieve multiple dust removal.

[0055] Reference Figure 3 The dust curtain 31 includes a first curtain 311, a second curtain 312, a third curtain 313, and a vertical telescopic mechanism 314. The first curtain 311 and the second curtain 312 are spaced apart along the thickness direction. The third curtain 313 is vertically arranged between the first curtain 311 and the second curtain 312, and both sides of the third curtain 313 are slidably connected to the first curtain 311 and the second curtain 312 in the vertical direction. The vertical telescopic mechanism 314 is provided at the upper vertical direction of the third curtain 313. The vertical telescopic mechanism 314 adopts a hydraulic cylinder, so that the telescopic height of the third curtain 313 in the vertical direction can be changed by driving the hydraulic cylinder, thereby changing the length of the dust curtain 31 and thus changing the sealing effect of the dust curtain 31 on the sealed material guide channel 3.

[0056] Reference Figure 1 and Figure 2Dust sensors 6 are installed both inside and outside the sealed material guide channel 3. The dust sensors 6 are electrically connected to the control box 7. A spray pipe 8 is installed inside the sealed material guide channel 3 along the length of the sealed material guide channel 3. The control box 7 can control the opening and closing of the spray pipe 8, so that the dust sensors 6 can monitor the dust concentration inside and outside the self-circulating dust suppression and dust removal device in real time. When the dust concentration increases sharply or the dust suppression and dust removal device fails, the spray pipe 8 is opened to achieve the purpose of forced dust reduction. As a protective device, it ensures that the dust concentration is within a controllable range.

[0057] The implementation principle of this application embodiment is as follows: the material is fed into the head guide hood 1 from the upper conveyor belt and falls along the head guide hood 1, so that the material passes through the curved drop pipe 2 in an orderly manner. During the process of the material falling in the curved drop pipe 2, the dust in the sealed guide channel 3 enters the return pipe 4 under the action of pressure difference, realizing airflow swirl. The dust follows the airflow to the curved drop pipe 2 and collides and adheres with the vertically falling material flow to form large particles, which settle under the action of gravity. Dust curtains 31 are set at both ends of the guide chute to seal it, so that the dust-laden airflow circulates in a closed environment. At the same time, the dust curtains 31 can block the movement direction of the dust in the dust-laden airflow. Combined with the expansion zone, the dust-laden airflow generates vortex. During the collision and circulation process here, some dust particles settle. Due to the impact, circulation and centrifugal separation in the closed channel, the dust particles finally deplete their energy and fall onto the receiving belt to complete the dust removal.

[0058] Dust sensor 6 monitors the dust concentration inside and outside the dust suppression and removal device in real time and transmits the data back to the field control box 7. When the dust concentration increases sharply or the dust suppression and removal device fails, the control box 7 automatically activates the spray pipe 8 to force dust reduction, acting as a protective device to ensure the dust concentration remains within a controllable range. When dust sensor 6 detects a decrease in dust concentration, the control box 7 shuts off the spray pipe 8, at which point dust is removed solely by the self-circulating dust suppression and removal device itself, achieving energy saving and consumption reduction. Existing dust removal devices typically require multiple sets of expansion zones and dust curtains 31 combined on the material guide chute, depending on the on-site working conditions.

[0059] Example 2: A non-powered dust suppression and removal device, referring to... Figure 4 The difference between this embodiment and Embodiment 1 is that:

[0060] A mounting box 9 is detachably connected inside the sealed material guide channel 3. The mounting box 9 is interconnected with the sealed material guide channel 3. A dust curtain 31 is vertically installed on the side of the mounting box 9 away from the curved material drop pipe 2, so that the dust curtain 31 can block the dust airflow. An expansion block 32 is installed on the top of the mounting box 9. The expansion slot 33 in the expansion block 32 is interconnected with the mounting box 9 in the vertical direction. Thus, the dust curtain 31 and the expansion slot 33 in the expansion block 32 can generate a vortex in the dust airflow to achieve dust reduction. Through the detachable connection of the mounting box 9, the number of mounting boxes 9 and the length of the sealed material guide channel 3 can be changed according to the actual use environment, which can improve the practicality of the dust removal device.

[0061] Reference Figure 4 and Figure 5 The sealed material guiding channel 3 has several installation grooves 34 on its two opposite sides in the horizontal direction, and several installation strips 91 are vertically arranged on its two opposite sides in the horizontal direction. The installation strips 91 are slidably connected to the inner wall of the installation grooves 34 in the vertical direction. Thus, the installation box 9 can be installed into the sealed material guiding channel 3 through the installation grooves 34 and the installation strips, realizing the connection between the installation box 9 and the sealed material guiding channel 3. This allows the dust curtain 31 and the expansion groove 33 inside the installation box 9 to be connected into the sealed material guiding channel 3, thereby achieving dust removal.

[0062] Reference Figure 6 and Figure 7 A locking mechanism 10 is provided in the inner walls of both sides of the sealed material guide channel 3. The locking mechanism 10 includes a locking hole 101 opened in the inner wall of the mounting groove 34. A first electromagnet 102 is fixed in the inner wall of the locking hole 101. A locking pin 103 is slidably inserted into the locking hole 101. A return spring 104 is fixed between the locking pin 103 and the first electromagnet 102. An auxiliary hole 92 that can communicate with the locking hole 101 is provided on the mounting strip 91. So when the first electromagnet 102 is de-energized, the return spring 104 automatically pops out the locking pin 103 and the locking pin 103 automatically inserts into the auxiliary hole 92 to lock the mounting strip 91.

[0063] Reference Figure 8 and Figure 9 A connecting mechanism 11 is provided on the mounting box 9. The connecting mechanism 11 includes a mounting plate 111, which is located on the top of the mounting box 9 and is higher than the top surface of the mounting box 9.

[0064] Reference Figure 10 and Figure 11A first sliding groove 112 is provided on the lower side of the mounting plate 111. A connecting block 113 is slidably connected to the inner wall of the first sliding groove 112. The connecting block 113 includes a first rod 1131, a connecting rod 1132, and a second rod 1133. The first rod 1131 is horizontally arranged, the connecting rod 1132 is vertically arranged, and the upper end of the connecting rod 1132 is fixed to one end of the first rod 1131. The second rod 1133 is parallel to the first rod 1131, and the lower end of the connecting rod 1132 is fixed to one end of the second rod 1133. Thus, the connecting block 113 is Z-shaped. The first rod 1131 is slidably connected to the inner wall of the first sliding groove 112. A second electromagnet 114 is provided on one side of the first sliding groove 112. A connecting spring 115 is provided between the second electromagnet 114 and the first rod 1131. Thus, the connecting block 113 can be driven to move by energizing or de-energizing the second electromagnet 114.

[0065] Reference Figure 10 and Figure 11 A second sliding groove 116 is provided on the top surface of the mounting box 9 on the side away from the mounting plate 111. A connecting hole 117 is provided on one side of the second sliding groove 116 along the sliding direction of the second sliding groove 116. The second rod 1133 is slidably connected to the inner wall of the second sliding groove 116 and the inner wall of the connecting hole 117. Thus, when two adjacent mounting boxes 9 are connected to each other, the second rod 1133 on the connecting block 113 of one mounting box 9 will be inserted into the second sliding groove 116 on the adjacent mounting box 9. Thus, the second electromagnet 114 can drive the second rod 1133 to be inserted into the connecting hole 117. This setting can realize the connection between several mounting boxes 9.

[0066] The implementation principle of this application embodiment is as follows: the required length of the dust removal device is determined according to the actual working space size of the dust removal device, thereby determining the number of installation boxes 9, and then the installation boxes 9 are installed in sequence. The number of installation boxes 9 can also be reduced or increased according to changes in the actual practical process to change the dust removal effect.

[0067] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A non-powered dust suppression and removal device, comprising a head guide hood (1), characterized in that, The head guide hood (1) has an opening on one side in the horizontal direction and the opening is set towards the upper conveyor belt. A curved material drop pipe (2) is connected to one side of the head guide hood (1). A sealed material guide channel (3) is connected to the lower end of the curved material drop pipe (2). The sealed material guide channel (3) is set horizontally and can transport materials. The lower end of the curved material drop pipe (2) is set inclined downward towards the conveying direction of the sealed material guide channel (3). An arc-shaped bend (21) is provided on the curved material drop pipe (2) that is opposite to the conveying direction of the sealed material guide channel (3). The sealed material guide channel (3) is detachably connected to an installation box (9), which is in communication with the sealed material guide channel (3). The installation box (9) is arranged through the conveying direction of the sealed material guide channel (3). An expansion groove (33) is provided on the inner wall of the installation box (9), which is in communication with the installation box (9). A dust curtain (31) is provided on the side of the installation box (9) away from the curved drop pipe (2), which closes the installation box (9). The mounting box (9) is provided in a plurality of units, and the plurality of mounting boxes (9) are arranged sequentially along the length direction of the sealed material guide channel (3); The dustproof curtain (31) includes a first curtain (311), a second curtain (312), a third curtain (313), and a vertical telescopic mechanism (314). The first curtain (311) and the second curtain (312) are spaced apart along the thickness direction. The third curtain (313) is located between the first curtain (311) and the second curtain (312), and the third curtain (313) is slidably connected to the first curtain (311) and the second curtain (312) on both sides along the thickness direction in the vertical direction. The upper vertical end of the third curtain (313) is provided with a vertical telescopic mechanism (314) that can drive the third curtain (313) to rise and fall in the vertical direction. An expansion block (32) is provided on the top of the installation box (9) in the vertical direction. The expansion block (32) is arranged along the width direction of the sealed material guide channel (3). The expansion groove (33) is opened in the expansion block (32). The expansion block (32) is connected to the installation box (9) in the vertical direction. The expansion block (32) is located on the side of the installation box (9) near the curved material drop pipe (2).

2. The non-powered dust suppression and removal device according to claim 1, characterized in that, A return pipe (4) is provided on one side of the curved material drop pipe (2). The two ends of the return pipe (4) are spaced apart in the vertical direction. The higher end of the return pipe (4) is connected to the curved material drop pipe (2), and the lower end of the return pipe (4) is connected to the sealed material guide channel (3).

3. The non-powered dust suppression and removal device according to claim 1, characterized in that, Dust sensors (6) are installed inside and outside the sealed material guiding channel (3). The dust sensors (6) are electrically connected to a control box (7). The control box (7) is located outside the sealed material guiding channel (3). A spray pipe (8) capable of spraying water is installed inside the sealed material guiding channel (3).

4. The non-powered dust suppression and removal device according to claim 1, characterized in that, The sealed material guide channel (3) has vertically opened installation grooves (34) on both sides of the opposite side wall. The installation box (9) has vertically arranged installation strips (91) on both sides of the opposite side outer wall. The installation strips (91) are slidably connected to the inner wall of the corresponding installation groove (34) in the vertical direction.

5. A non-powered dust suppression and removal device according to claim 4, characterized in that, The sealed material guide channel (3) is provided with locking mechanisms (10) on both sides of the sealing material guide channel (3). The locking mechanism (10) includes a locking hole (101) opened on the inner wall of the mounting groove (34). A first electromagnet (102) is fixed on the inner wall of the locking hole (101). A locking pin (103) is slidably inserted into the locking hole (101). A return spring (104) is provided between the locking pin (103) and the first electromagnet (102). The two ends of the return spring (104) are respectively connected to the locking pin (103) and the first electromagnet (102). An auxiliary hole (92) that can communicate with the locking hole (101) is provided on the mounting strip (91).

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