A belt conveyor with high-efficiency dust removal device

Abstract

A belt conveyor with a high-efficiency dust removal device comprises a fully sealed material guide trough, wherein a belt for conveying materials is arranged inside the fully sealed material guide trough; a material drop port and at least one online plastic-sintered plate filter are arranged in sequence on the upper part of the fully sealed material guide trough along the direction of travel of the belt guide; the fully sealed material guide trough is also provided with an electrical and pneumatic control box for controlling the high-efficiency dust removal device of the invention; the present invention adopts a combination of an online plastic-sintered plate filter and a fully sealed material guide trough, which not only ensures the sealing during material conveying and cleaning of the core filter element and avoids dust overflow, but also takes into account the long life of the core filter element and the high efficiency of online cleaning while ensuring the dust purification effect; in addition, the plastic-sintered plate, the core filter element of the online plastic-sintered plate filter, can not only filter moist dust, but is also suitable for high-temperature and corrosive dust, greatly enhancing the applicability to dust in different working conditions.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to a belt conveyor with a high-efficiency dust removal device. Background Art

[0002] As the level of industrialization increases, it will inevitably bring about environmental problems such as air pollution. In the fields of steel, coal, cement, mining, glass, etc., a large amount of solid particulate materials need to be transported and transferred by belt conveyors, and a large amount of dust will be generated in this process.

[0003] At present, the dust removal devices used in belt conveyors are mainly divided into the following categories:

[0004] 1. Negative pressure dust removal; 2. Unpowered or micro-powered dust removal (including resistance-enhancing and material-dropping devices, wind speed reduction devices, maze-type dust reduction, etc.); 3. Wet dust removal devices (spraying and sprinkling, fog dust removal including dry fog and micro fog, foam preparations); 4. Electrostatic dust removal.

[0005] It has been verified in practice that it is often difficult to meet the national emission standards for belt conveyor dust removal by only using the second, third, and fourth methods;

[0006] In order to solve this problem, the first negative pressure dust removal method is usually adopted and at the same time, the sealing is strengthened, and on this basis or in combination with the above-mentioned second, third, and fourth methods, the emission standards can be achieved.

[0007] For example, the Chinese utility model patent with patent number 201620436991.2, named "A negative pressure dust removal device including a fully sealed material guide trough", adopts the technical solution of: fully sealed material guide trough + bag-type negative pressure dust collector + spray device.

[0008] However, bag-type negative pressure dust collectors have large resistance, and once used for the purification of corrosive and humid gases, they will quickly lose their effectiveness due to corrosion or blockage.

[0009] In addition, filters are often used in negative pressure dust removal methods, but filters that require deep filtration often have complex structures, require offline cleaning, and cannot be used multiple times, which brings great inconvenience to subsequent maintenance.

[0010] In summary, we are in urgent need of inventing a belt conveyor with a high-efficiency dust removal device. Summary of the invention

[0011] In view of the above problems, the present invention proposes a belt conveyor with a high-efficiency dust removal device. The technical solution used is

[0012] A belt conveyor with a high-efficiency dust removal device comprises a fully sealed material guide trough, wherein a belt for conveying materials is arranged inside the fully sealed material guide trough; a material drop port and at least one online plastic sintering plate filter are arranged in sequence on the upper part of the fully sealed material guide trough along the traveling direction of the belt guide; an electrical and pneumatic control box for controlling the high-efficiency dust removal device is also arranged on the fully sealed material guide trough.

[0013] Furthermore, the online plastic-burning plate filter comprises: a plastic-burning plate box, a plastic-burning plate, a centrifugal fan, a pulse back-blowing assembly, a clean air box and a flap valve assembly; the plastic-burning plate box is airtightly arranged on the upper part of the fully sealed material guide trough and is connected through a filter connection port arranged on the fully sealed material guide trough; a plurality of plastic-burning plates are arranged in the plastic-burning plate box, and at least one side is provided with a plastic-burning plate box door for installing the plastic-burning plates; the clean air box is provided with upper and lower openings, the lower end opening is communicated with the top of the plastic-burning plate box, and is airtightly connected with the outlet of the plastic-burning plate, and the upper end opening is communicated with the exhaust port of the centrifugal fan; the pulse back-blowing assembly is arranged on the clean air box, and the back-blowing nozzle is arranged in the clean air box facing the plastic-burning plate downward, for back-blowing cleaning of the plastic-burning plate; the flap valve assembly is arranged between the bottom of the plastic-burning plate box and the lower end of the plastic-burning plate; dust collecting plates are arranged on both sides of the flap valve assembly, and an air inlet gap is reserved between the side of the dust collecting plate away from the flap valve assembly and the plastic-burning plate box for air intake.

[0014] Furthermore, the flap valve assembly includes: a flap, a flap shaft, a flap bearing, a flap shaft coupling and an actuator motor; the flap is fixedly connected to the flap shaft, and the flap shaft is installed in the plastic burning board box through the flap bearing; the actuator motor is arranged on the outside of the plastic burning board box through a bracket, and its output shaft is fixedly connected to the flap shaft through the flap shaft coupling.

[0015] Furthermore, a tape cleaner is provided at the outlet of the fully sealed material guide trough and below the return tape, for cleaning the return tape.

[0016] Furthermore, the fully sealed material guiding trough is provided with an automatic tape centering adjustment mechanism at both sides of the tape corresponding to the inlet and / or outlet, for automatically centering the tape that deviates to the left and right.

[0017] Furthermore, the automatic adjustment mechanism for centering the belt comprises: an intermediate roller, an adjustment roller, an automatic adjustment device I, an automatic adjustment device II and an intermediate shaft; the intermediate shaft is installed at both sides of the belt through a fixed frame; each intermediate shaft is provided with an automatic adjustment device I, an adjustment roller, an intermediate roller, an adjustment roller and an automatic adjustment device II, which are rotatably sleeved from one end to the other end in sequence; the belt contacts the intermediate roller and drives the intermediate roller to rotate when it does not deviate; and contacts one of the adjustment rollers at both ends of the intermediate roller and drives the adjustment roller to rotate when it deviates to the left or right; the automatic adjustment device I and the automatic adjustment device II are respectively connected to their corresponding adjustment rollers, and belt adjustment claws are slidably provided on the automatic adjustment device I and the automatic adjustment device II; when one of the adjustment rollers contacts the belt and rotates, the corresponding belt adjustment claw slides toward the intermediate roller to adjust the deviated belt; the automatic adjustment device I, the automatic adjustment device II and the intermediate shaft are connected through a spring; in the process that the adjustment roller rotates and drives the belt adjustment claw to slide toward the intermediate roller, the spring is gradually tightened; when the adjustment roller stops rotating, the spring is loosened to reset the belt adjustment claw.

[0018] Furthermore, the automatic adjustment device I also includes: a reverse lead screw, a lead screw bearing, a guide cover, a guide cover fixing plate and a reverse lead screw nut, wherein the lower part of the reverse lead screw is fixedly connected to the corresponding adjustment roller, and the bottom is rotatably connected to the intermediate shaft through a spring; the upper part of the reverse lead screw is cooperatively connected to the reverse lead screw nut, and the top is rotatably connected to the guide cover through a lead screw bearing, a slide groove is provided on the side of the guide cover, and at least one straight arm is provided on the outer side of the reverse lead screw nut, the straight arm slides in the slide groove and the outer end extends out of the guide cover; the belt adjustment claw is fixedly connected to the outer end of the straight arm; the guide cover fixing plate is fixed on the intermediate shaft and fixedly connected to the guide cover; when the guide cover is fixed by the guide cover fixing plate, the claw end of the belt adjustment claw faces the end faces of both sides of the belt, and the belt is centered and adjusted during the sliding of the belt adjustment claw toward the intermediate roller;

[0019] At the same time, the only difference in structure between the automatic adjusting device II and the automatic adjusting device I is that the automatic adjusting device II replaces the reverse lead screw and reverse lead screw nut in the automatic adjusting device I with a forward lead screw and forward lead screw nut respectively, so as to ensure that when the belt drives the corresponding adjustment roller of the automatic adjusting device II to rotate, the belt adjustment claw slides toward the middle roller.

[0020] Furthermore, the reverse lead screw and the forward lead screw are both rotationally connected to the intermediate shaft via an intermediate shaft bearing.

[0021] Since the present invention adopts the above technical solution, the present invention has the following advantages:

[0022] 1. The present invention adopts a method of combining an online plastic-sintered plate filter with a fully sealed material guide trough, which not only ensures the closedness of material transportation and the cleaning process of the core filter element to avoid dust overflow, but also ensures the long life of the core filter element and the high efficiency of online cleaning while ensuring the dust purification effect; in addition, the plastic-sintered plate, the core filter element of the online plastic-sintered plate filter, can not only filter moist dust, but is also suitable for high-temperature and corrosive dust, which greatly enhances the applicability to dust in different working conditions.

[0023] 2. The present invention disperses the online plastic-sintered plate filters on the fully sealed material guide trough, which can be automatically controlled according to the working conditions, reducing the idle start-up of high-power fans and the energy loss of the centrally arranged dust collectors during long-distance transmission.

[0024] 3. The present invention separates the air inlet and the dust backflush collection port at the bottom of the online plastic-sintered plate filter by arranging a flap valve assembly and a dust collecting plate at the bottom of the online plastic-sintered plate filter, thereby effectively avoiding dust disturbance caused by the pulse backflush assembly during the backflush process, resulting in low backflush cleaning efficiency.

[0025] 4. The present invention provides an automatic centering adjustment mechanism for the tape at the inlet and / or outlet of the fully sealed material guide trough, thereby effectively ensuring the real-time automatic centering adjustment of the tape during operation, thereby greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1-2 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at Q.

[0028] Figure 4 For the present invention Figure 1 Schematic diagram of the local enlarged structure at M in the middle.

[0029] Figure 5 , Figure 8 It is a schematic diagram of the structure of the fully sealed material guide chute of the present invention.

[0030] Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure at N in the figure.

[0031] Figure 7 For the present invention Figure 5 Schematic diagram of the local enlarged structure at P in the middle.

[0032] Fig. 9 For the present invention Figure 8 Schematic diagram of the cross-sectional structure.

[0033] Fig.10 For the present invention Fig. 9 Schematic diagram of the local enlarged structure at R in the middle.

[0034] Fig.11 , Fig.13 , Fig.14 It is a schematic diagram of the overall structure of the automatic belt centering adjustment mechanism of the present invention.

[0035] Fig.12 For the present invention Fig.11 Schematic diagram of the local enlarged structure at S in the middle.

[0036] Fig.15 For the present invention Fig.14 Schematic diagram of the local enlarged structure at T in the middle.

[0037] Fig.16 The figure is a schematic diagram of the structure of the automatic centering adjustment mechanism of the tape without the guide cover of the present invention.

[0038] Fig.17 It is a schematic structural diagram of the guide cover of the present invention.

[0039] Fig.18 For the present invention Fig.11 Schematic diagram of the local enlarged structure at U in the middle.

[0040] Fig.19 It is a schematic diagram of the exploded structure of the automatic centering adjustment mechanism of the adhesive tape of the present invention.

[0041] Fig. 20 , Fig.21 , Fig. 22 It is a schematic diagram of the overall structure of the online plastic sintered plate filter of the present invention.

[0042] Fig.23 It is a schematic structural diagram of the flap valve assembly of the present invention.

[0043] Figure numbers: 1-fully sealed guide trough; 2-online plastic sintering plate filter; 3-electrical and pneumatic control box; 4-electrostatic dust filter closed soft curtain; 5-tape cleaner; 6-feeding port; 101-frame assembly; 102-roller bracket assembly; 103-wear-resistant plate; 104-tape; 105-return tape roller assembly; 106-side wear-resistant sealing strip compression assembly; 107-side wear-resistant sealing strip; 108-closed soft curtain support frame; 109-tape centering corrector; 110-sealing plate; 111-guide trough upper cover plate; 112-inner plate; 113-filter connection port; 114-feeding connection port; 115-tape centering automatic adjustment mechanism; 201-plastic sintering plate box; 202-plastic sintering plate; 203-centrifugal fan; 204-pulse backflush assembly; 205-clean Air box; 206-plastic sintering board box door; 207-flap valve assembly; 208-plastic sintering board lower end fixer; 1151-middle roller; 1152-adjusting roller; 1153A-automatic adjustment device I; 1153B-automatic adjustment device II; 1154-intermediate shaft; 1153a-reverse lead screw; 1153b-spring; 1153c-intermediate shaft bearing; 1153d-lead screw bearing; 1153e-guide cover; 1153f-guide cover fixing plate; 1153g-reverse lead screw nut; 1153h-belt adjustment claw; 1153i-forward lead screw; 1153j-forward lead screw nut; 2071-flap; 2072-flap shaft; 2073-flap bearing; 2074-flap shaft coupling; 2075-executing motor; 2076-bracket. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0045] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example

[0046] like Figure 1-4As shown, a belt conveyor with a high-efficiency dust removal device comprises a fully sealed material guide trough 1, inside of which a belt 104 for conveying materials is arranged; the upper part of the fully sealed material guide trough 1 is provided with a drop-off port 6 and a wire plastic sintered plate filter 2 in sequence along the material guiding direction of the belt 104, and the wire plastic sintered plate filter 2 is arranged every 5-10m; the inlet and outlet of the fully sealed material guide trough 1 are respectively provided with an electrostatic dust filter closed soft curtain 4, and the electrostatic dust filter closed soft curtain 4 is fixed by a closed soft curtain support frame 108 arranged at the top of the inlet and outlet of the fully sealed material guide trough 1; the fully sealed material guide trough 1 is also provided with an electrical and pneumatic control box 3 for controlling the high-efficiency dust removal device of the invention.

[0047] Specifically, as a preferred solution of this embodiment, Figure 5-10 As shown, the fully sealed material guide trough 1 also includes a frame assembly 101, a roller bracket assembly 102, a wear-resistant plate 103, a side wear-resistant sealing strip pressing assembly 106, a side wear-resistant sealing strip 107, a sealing plate 110, a material guide trough upper cover plate 111, an inner plate 112, a filter connection port 113 and a blanking connection port 114. The material guide trough upper cover plate 111 and the inner plate 112 are respectively fixedly arranged on the top and both inner sides of the frame assembly 101; the side wear-resistant sealing strip 107 is fixed on the inner plate 112 through the side wear-resistant sealing strip pressing assembly 106, and the outer side surface is in close contact with the tape 104; the material guide trough upper cover plate 111, the inner plate 112, the side wear-resistant sealing strip 107 and the electrostatic dust filter closed soft curtain 4 form a closed material guide space with the tape 104; the upper side of the sealing plate 110 is connected to the outer side of the inner plate 112, and the lower side is connected to the frame through the bottom support plate The assembly 101 is connected; a wear-resistant plate 103 is provided on the bottom support plate, and contacts with the side of the tape 104 away from the side wear-resistant sealing strip 107. At the same time, the wear-resistant plate 103 is made of ultra-high molecular weight polyethylene material to prevent the tape 104 from aggravating wear so as to increase the service life; the roller bracket assembly 102 is arranged below the closed material guiding space along the traveling direction of the tape 104, and contacts with the tape 104, and is used to support the guiding tape 104; the frame assembly 101 is provided with a return tape roller assembly 105 below the return tape 104, which is used to support the return tape 104; the blanking connection port 114 and the filter connection port 113 are sequentially arranged on the upper cover plate 111 of the material guiding trough along the traveling direction of the tape 104, and the blanking port 6 and the wire plastic sintering plate filter 2 are respectively arranged on the blanking connection port 114 and the filter connection port 113;

[0048] At the same time, in order to ensure the cleanliness of the return tape 104, a tape cleaner 5 is provided at the outlet of the fully sealed material guide trough 1 and below the return tape 104.

[0049] As a preferred solution of this embodiment, Figure 20-22As shown, the online plastic sintering plate filter 2 comprises: a plastic sintering plate box 201, a plastic sintering plate 202, a centrifugal fan 203, a pulse backflush assembly 204, a clean air box 205 and a flap valve assembly 207; the plastic sintering plate box 201 is sealed and arranged on the upper part of the fully sealed material guide trough 1, and is connected through the filter connection port 113 arranged on the fully sealed material guide trough 1; a plurality of plastic sintering plates 202 are arranged in the plastic sintering plate box 201, and a plastic sintering plate box door 206 for installing the plastic sintering plates 202 is arranged on at least one side; the clean air box 205 is provided with upper and lower openings, and the lower end opening is connected to the plastic sintering plate box 201 The top is connected and sealed with the outlet of the plastic sintering plate 202, and the upper opening is connected to the exhaust port of the centrifugal fan 203; the pulse backblowing assembly 204 is arranged on the clean air box 205, and the backblowing nozzle is arranged downward facing the plastic sintering plate 202 in the clean air box 205, which is used for backblowing cleaning of the plastic sintering plate 202; the flap valve assembly 207 is arranged between the bottom of the plastic sintering plate box 201 and the lower end of the plastic sintering plate 202; dust collecting plates are provided on both sides of the flap valve assembly 207, and an air inlet gap is reserved between the side of the dust collecting plate away from the flap valve assembly 207 and the plastic sintering plate box 201 for air intake.

[0050] As a preferred solution of this embodiment, Fig.23 As shown, the flap valve assembly 207 includes: a flap 2071, a flap shaft 2072, a flap bearing 2073, a flap shaft coupling 2074 and an actuator motor 2075; the flap 2071 is fixedly connected to the flap shaft 2072, and the flap shaft 2072 is installed in the plastic burning board box 201 through the flap bearing 2073; the actuator motor 2075 is arranged on the outside of the plastic burning board box 201 through a bracket 2076, and its output shaft is fixedly connected to the flap shaft 2072 through the flap shaft coupling 2074;

[0051] During the operation of the online plastic-sintered plate filter 2, the flap 2071 of the flap valve assembly 207 is in a horizontally closed state, and the centrifugal fan 203 is working, so that the dust in the fully sealed material guide trough 1 passes through the gap between the dust collecting plate and the plastic-sintered plate box 201 and enters the plastic-sintered plate 202 for filtration, and the filtered clean air that meets the standards is discharged to the external space through the clean air box 205 and the centrifugal fan 203; when the online plastic-sintered plate filter 2 works for the set time, the pulse backflush assembly 204 performs backflushing, and after the backflushing is completed, the flap valve assembly 207 flips 90 degrees to open, delays 2-3 seconds, and closes again after ensuring that the dust completely falls into the fully sealed material guide trough 1.

[0052] In order to ensure that the adhesive tape 104 can always be in the center during the material guiding process, Figure 1-10As shown, the fully sealed material guide trough 1 is provided with a tape centering corrector 109 without automatic adjustment function at both sides of the tape 104 corresponding to the inlet, and a tape centering automatic adjustment mechanism 115 is provided at both sides of the tape 104 corresponding to the outlet, which is used to automatically center the tape 104 that deviates to the left or right.

[0053] Specifically, Fig.11 , 13 As shown in Figure 14, the automatic adjustment mechanism 115 for centering the adhesive tape comprises: an intermediate roller 1151, an adjustment roller 1152, an automatic adjustment device I 1153A, an automatic adjustment device II 1153B and an intermediate shaft 1154; the intermediate shaft 1154 is installed on both sides of the adhesive tape 104 through a fixed frame; each intermediate shaft 1154 is rotatably sleeved with an automatic adjustment device I 1153A, an adjustment roller 1152, an intermediate roller 1151, an adjustment roller 1152 and an automatic adjustment device II 1153B from one end to the other end, and the adhesive tape 104 contacts with the intermediate roller 1151 and drives the intermediate roller 1151 to rotate when it does not deviate, and contacts with one of the adjustment rollers 1152 at both ends of the intermediate roller 1151 and drives the adjustment roller 1152 to rotate when it deviates to the left or right; the automatic adjustment device I 1153A, the automatic adjustment device II 1153B Ⅱ1153B are respectively connected to the corresponding adjustment rollers 1152, and the automatic adjustment devices Ⅰ1153A and Ⅱ1153B are both slidably provided with belt adjustment claws 1153h. When one of the adjustment rollers 1152 contacts and rotates with the adhesive tape 104, the corresponding belt adjustment claw 1153h slides toward the middle roller 1151, so as to adjust the deviated adhesive tape 104 to the center. The automatic adjustment devices Ⅰ1153A and Ⅱ1153B are all connected to the intermediate shaft 1154 through the spring 1153b. When the adjustment roller 1152 rotates and drives the belt adjustment claw 1153h to slide toward the middle roller 1151, the spring 1153b is gradually tightened. When the adjustment roller 1152 stops rotating, the spring 1153b is loosened to reset the belt adjustment claw 1153h.

[0054] As a preferred solution, Fig.12 , 15-19, the automatic adjustment device I 1153A also includes: a reverse lead screw 1153a, a lead screw bearing 1153d, a guide cover 1153e, a guide cover fixing plate 1153f and a reverse lead screw nut 1153g. The lower part of the reverse lead screw 1153a is fixedly connected to the corresponding adjustment roller 1152, and the bottom is rotatably connected to the intermediate shaft 1154 through a spring 1153b; in order to avoid excessive friction coefficient, the reverse lead screw 1153a and the forward lead screw 1153i are both rotatably connected to the intermediate shaft 1154 through an intermediate shaft bearing 1153c; the upper part of the reverse lead screw 1153a is matched with the reverse lead screw nut 1153g, and the top is connected to the reverse lead screw nut 1153g through a lead screw bearing 1 153d is rotatably connected with the guide cover 1153e, a slide groove is provided on the side of the guide cover 1153e, two straight arms are provided at an angle of 120 degrees on the outer side of the reverse lead screw nut 1153g, the straight arms slide in the slide groove and the outer ends extend out of the guide cover 1153e; the belt adjustment claw 1153h is fixedly connected with the outer ends of the straight arms; the guide cover fixing plate 1153f is fixed on the intermediate shaft 1154 and is fixedly connected with the guide cover 1153e; when the guide cover 1153e is fixed by the guide cover fixing plate 1153f, the claw ends of the belt adjustment claw 1153h face the end faces of both sides of the adhesive tape 104, and the adhesive tape 104 is centered and adjusted during the sliding process of the belt adjustment claw 1153h toward the direction of the intermediate roller 1151;

[0055] The only difference between the automatic adjusting device II 1153B and the automatic adjusting device I 1153A is that the automatic adjusting device II 1153B replaces the reverse lead screw 1153a and the reverse lead screw nut 1153g in the automatic adjusting device I 1153A with the forward lead screw 1153i and the forward lead screw nut 1153j respectively, so as to ensure that when the adhesive tape 104 drives the corresponding adjustment roller 1152 of the automatic adjusting device II 1153B to rotate, the belt adjustment claw 1153h slides toward the middle roller 1151.

[0056] During the implementation, facing the material guide direction of the adhesive tape 104, the automatic adjustment device II 1153B in the left adhesive tape centering automatic adjustment mechanism 115 is at the upper end; and the automatic adjustment device I 1153A in the right adhesive tape centering automatic adjustment mechanism 115 is at the upper end. Such a setting can ensure that when the adhesive tape 104 deflects left or right, the adhesive tape centering automatic adjustment mechanisms 115 on both sides, whether they are automatic adjustment devices I 1153A or automatic adjustment devices II 1153B, and the belt adjustment claws 1153h can slide toward the middle roller 1151;

[0057] When the adhesive tape 104 deflects to the right, that is, the left side of the adhesive tape 104 contacts the lower end adjustment roller 1152 in the left adhesive tape centering automatic adjustment mechanism 115, and the right side contacts the upper end adjustment roller 1152 in the right adhesive tape centering automatic adjustment mechanism 115, the rotation of the adhesive tape 104 drives the adjustment rollers 1152 on both sides to rotate along the intermediate shaft 1154. At this time, the adjustment rollers 1152 on both sides rotate in the opposite direction relative to the guide covers 1153e in the automatic adjustment devices Ⅰ1153A connected to them. At this time, the reverse lead screw 1153a drives the reverse lead screw nut 1153g to slide toward the middle roller 1151, so that the belt adjusting claw 1153h contacts the side of the adhesive tape 104 and gradually pushes it toward the middle roller 1151. When the adhesive tape 104 is centered and no longer contacts the adjusting roller 1152, the reverse lead screw 1153a rotates forward relative to the guide cover 1153e in the respectively connected automatic adjusting device Ⅰ 1153A under the action of the spring 1153b, and finally the belt adjusting claw 1153h is reset.

[0058] When the adhesive tape 104 deflects to the left, that is, the left side of the adhesive tape 104 contacts the upper adjustment roller 1152 in the left adhesive tape centering automatic adjustment mechanism 115, and the right side contacts the lower adjustment roller 1152 in the right adhesive tape centering automatic adjustment mechanism 115, the adjustment rollers 1152 on both sides rotate forward relative to the guide covers 1153e in the automatic adjustment devices II 1153B connected to them. At this time, the forward lead screw 1153i drives the forward lead screw nut 1153j to slide toward the middle roller 1151, so that the belt adjustment claw 1153h contacts the side of the adhesive tape 104 and gradually pushes it toward the middle roller 1151. When the adhesive tape 104 is centered and no longer contacts the adjustment roller 1152, the forward lead screw 1153i rotates in the opposite direction relative to the guide covers 1153e in the automatic adjustment devices II 1153B connected to them under the action of the spring 1153b, and finally the belt adjustment claw 1153h is reset.

Claims

1. A belt conveyor with a high-efficiency dust removal device, comprising a fully sealed material guide trough (1), wherein a belt (104) for conveying materials is arranged inside the fully sealed material guide trough (1); characterized in that: The upper part of the fully sealed material guide chute (1) is provided with a material drop opening (6) and at least one online plastic sintered plate filter (2) in sequence along the material guiding direction of the adhesive tape (104); the fully sealed material guide chute (1) is also provided with an electrical and pneumatic control box (3) for controlling the high-efficiency dust removal device; The fully sealed material guide trough (1) is provided with an automatic tape centering adjustment mechanism (115) at both sides of the tape (104) corresponding to the inlet and / or outlet, for automatically centering the tape (104) that deviates to the left or right; The automatic adjustment mechanism (115) for centering the adhesive tape comprises: an intermediate roller (1151), an adjustment roller (1152), an automatic adjustment device I (1153A), an automatic adjustment device II (1153B) and an intermediate shaft (1154); the intermediate shaft (1154) is mounted on both sides of the adhesive tape (104) via a fixing frame; each intermediate shaft (1154) is rotatably sleeved with an automatic adjustment device I (1153A), an adjustment roller (1152), an intermediate roller (1151), an adjustment roller (1152) and an automatic adjustment device II (1153B) from one end to the other end; the adhesive tape (104) contacts the intermediate roller (1151) and drives the intermediate roller (1151) to rotate when the adhesive tape (104) does not deviate from the intermediate roller (1151); and contacts one of the adjustment rollers (1152) at both ends of the intermediate roller (1151) and drives the adjustment roller (1152) to rotate when the adhesive tape (104) deviates to the left or right. The automatic adjustment devices Ⅱ (1153B) are respectively connected to the corresponding adjustment rollers (1152), and the automatic adjustment devices Ⅰ (1153A) and Ⅱ (1153B) are both slidably provided with belt adjustment claws (1153h), and when one of the adjustment rollers (1152) contacts and rotates with the adhesive tape (104), the corresponding belt adjustment claw (1153h) slides toward the middle roller (1151) to adjust the deviated adhesive tape (104) to the center; The automatic adjustment device I (1153A), the automatic adjustment device II (1153B) and the intermediate shaft (1154) are connected via a spring (1153b); when the adjustment roller (1152) rotates and drives the belt adjustment claw (1153h) to slide in the direction of the intermediate roller (1151), the spring (1153b) is gradually tightened; when the adjustment roller (1152) stops rotating, the spring (1153b) is loosened and the belt adjustment claw (1153h) is reset; The automatic adjustment device I (1153A) further comprises: a reverse lead screw (1153a), a lead screw bearing (1153d), a guide cover (1153e), a guide cover fixing plate (1153f) and a reverse lead screw nut (1153g); the lower portion of the reverse lead screw (1153a) is fixedly connected to the corresponding adjustment roller (1152), and the bottom portion is rotationally connected to the intermediate shaft (1154) via a spring (1153b); the upper portion of the reverse lead screw (1153a) is cooperatively connected to the reverse lead screw nut (1153g), and the top portion is rotationally connected to the guide cover (1153e) via a lead screw bearing (1153d); a side of the guide cover (1153e) is provided with a A slide groove is provided, and at least one straight arm is provided on the outer side of the reverse lead screw nut (1153g), the straight arm slides in the slide groove and the outer end extends out of the guide cover (1153e); the belt adjustment claw (1153h) is fixedly connected to the outer end of the straight arm; the guide cover fixing plate (1153f) is fixed on the intermediate shaft (1154) and is fixedly connected to the guide cover (1153e); when the guide cover (1153e) is fixed by the guide cover fixing plate (1153f), the claw end of the belt adjustment claw (1153h) faces the end faces of both sides of the adhesive tape (104), and the adhesive tape (104) is centered and adjusted during the sliding process of the belt adjustment claw (1153h) toward the middle roller (1151); The difference between the automatic adjustment device II (1153B) and the automatic adjustment device I (1153A) lies only in that the automatic adjustment device II (1153B) replaces the reverse lead screw (1153a) and the reverse lead screw nut (1153g) in the automatic adjustment device I (1153A) with a forward lead screw (1153i) and a forward lead screw nut (1153j), respectively, so as to ensure that when the adhesive tape (104) drives the corresponding adjustment roller (1152) of the automatic adjustment device II (1153B) to rotate, the belt adjustment claw (1153h) slides toward the middle roller (1151).

2. The belt conveyor with a high-efficiency dust removal device according to claim 1, characterized in that: The online plastic sintered plate filter (2) comprises: a plastic sintered plate box (201), a plastic sintered plate (202), a centrifugal fan (203), a pulse backflush assembly (204), a clean air box (205), and a flap valve assembly (207); the plastic sintered plate box (201) is sealed and arranged on the upper part of the fully sealed material guide trough (1), and is connected via a filter connection port (113) arranged on the fully sealed material guide trough (1); a plurality of plastic sintered plates (202) are arranged in the plastic sintered plate box (201), and at least one side is provided with a plastic sintered plate box door (206) for mounting the plastic sintered plates (202); the clean air box (205) is provided with upper and lower openings, and the lower end opening is connected to the plastic sintered plate box (201); 1) The top is connected and sealed with the outlet of the plastic sintering plate (202), and the upper end opening is connected with the air outlet of the centrifugal fan (203); the pulse back-blowing assembly (204) is arranged on the clean air box (205), and the back-blowing nozzle is arranged downwardly facing the plastic sintering plate (202) in the clean air box (205), and is used for back-blowing cleaning of the plastic sintering plate (202); the flap valve assembly (207) is arranged between the bottom of the plastic sintering plate box (201) and the lower end of the plastic sintering plate (202); dust collecting plates are arranged on both sides of the flap valve assembly (207), and an air inlet gap is reserved between the side of the dust collecting plate away from the flap valve assembly (207) and the plastic sintering plate box (201) for air intake.

3. The belt conveyor with a high-efficiency dust removal device according to claim 2, characterized in that: The flap valve assembly (207) comprises: a flap (2071), a flap shaft (2072), a flap bearing (2073), a flap shaft coupling (2074), and an actuator motor (2075); the flap (2071) is fixedly connected to the flap shaft (2072), and the flap shaft (2072) is installed in the plastic burning board box (201) via the flap bearing (2073); the actuator motor (2075) is arranged on the outside of the plastic burning board box (201) via a bracket (2076), and its output shaft is fixedly connected to the flap shaft (2072) via the flap shaft coupling (2074).

4. The belt conveyor with a high-efficiency dust removal device according to claim 1, characterized in that: The reverse lead screw (1153a) and the forward lead screw (1153i) are both rotationally connected to the intermediate shaft (1154) via an intermediate shaft bearing (1153c).

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