Dry dust removal system for mine

Abstract

The utility model relates to a mine dry dust removal system, which comprises a fan and a dry separation mechanism, the fan comprises a cylinder, one end of the cylinder is provided with an air inlet, a first filter frame is arranged in the air inlet, the other end of the cylinder is provided with a motor, a main shaft of the motor is connected with fan blades, the cylinder is provided with an air outlet, and a second filter frame is arranged in the air outlet; a storage bin is arranged on the upper portion of the barrel, the bottom of the storage bin is communicated with an inner cavity of the barrel through a feeding port, a feeding door capable of being opened and closed is arranged in the feeding port, a discharging port is formed in the bottom of the barrel, a detachable discharging door is arranged in the discharging port, a collecting chamber is arranged below the discharging port, and the collecting chamber is connected with the storage bin through a conveying mechanism. A plurality of elastic balls are arranged in the storage bin, and the diameters of the elastic balls are larger than the sizes of filter holes of the second filter frame and the first filter frame. According to the utility model, ash removal can be carried out on a plurality of parts at one time, the ash removal efficiency is high, a plurality of ash removal mechanisms do not need to be arranged, and the internal structure of the barrel is simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal, in particular to a mine dry dust removal system. Background Art

[0002] A large amount of dust is generated during mining operations. Currently, mining dust removal methods include wet dust removal and dry dust removal. Wet dust removal usually involves spraying water mist into the air to reduce dust. This method of dust removal consumes a large amount of water, and the dust cannot be recycled. Dry dust removal usually uses a fan to collect dust-carrying air, and then separates the air and dust. This method of dust removal is more environmentally friendly and can recycle mineral powder, so it has become the main dust removal method at present. When using dry dust removal, the fan is one of the main equipment. Since the fan operates in a dusty environment, dust is easily adhered to the blades, inner walls and other parts of the fan, affecting the normal operation of the fan.

[0003] CN202010521059.0 discloses a CNC fan that is convenient for cleaning internal dust. A cleaning brush is installed on the fan blades, and the cleaning brush is used to clean the inner wall of the fan barrel, but the weight of the blades is increased, affecting the efficiency of the fan.

[0004] CN202310114264.9 discloses a fan that is convenient for cleaning dust. It is provided with a fan blade cleaning mechanism and a screen frame cleaning mechanism. The fan blade cleaning mechanism uses a brush to clean the blades and sprays cleaning water on the blades at the same time; the screen frame cleaning mechanism uses a brush to clean the screen frame and sprays water on the screen frame at the same time.

[0005] The existing cleaning mechanism can only clean one of the blades, the cylinder or the mesh frame, but cannot use one mechanism to clean multiple parts at the same time. Moreover, since the blades are generally curved or installed at an angle, it is difficult for the brush to fully contact the two sides of the blades, resulting in poor cleaning effect. After flushing with water, sewage is generated, and the cleaned part of the fan is wetted, which makes it easier to get dust quickly after cleaning. In addition, after the cleaning mechanism is set inside the cylinder, it will occupy the space inside the cylinder, increase the air flow resistance, and affect the fan flow. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a mine dry dust removal system, which can simultaneously clean blades, the inner wall of a cylinder and other parts, and has a better cleaning effect.

[0007] In order to solve the above problems, the technical solution adopted by the utility model is: a mine dry dust removal system, including a fan and a dry separation mechanism,

[0008] The fan comprises a cylinder, one end of which is arranged at an air inlet, a first filter frame is arranged in the air inlet, a motor is arranged at the other end of the cylinder, a fan blade is connected to the main shaft of the motor, and an air outlet is arranged on the cylinder.

[0009] A second filter frame is arranged in the air outlet;

[0010] A storage bin is provided at the upper part of the cylinder, the bottom of the storage bin is connected to the inner cavity of the cylinder through a feed port, an openable and closable feed door is provided in the feed port, a discharge port is provided at the bottom of the cylinder, a detachable discharge door is provided in the discharge port, a collecting chamber is provided below the discharge port, the collecting chamber is connected to the storage bin through a transmission mechanism, a plurality of elastic balls are provided in the storage bin, and the diameter of the elastic balls is larger than the filter hole size of the second filter frame and the first filter frame.

[0011] Furthermore, the fan also includes a mounting seat, which includes a fixed seat body and a movable seat body arranged on the upper surface of the fixed seat body, a vertical adjustment shaft is arranged at the center of the movable seat body, the adjustment shaft is rotatably mounted on the mounting seat, and the adjustment shaft is connected to an adjustment motor; the cylinder, the collection chamber and the motor are all mounted on the movable seat body, and a group of rollers are arranged at the bottom of the fixed seat body

[0012] Furthermore, a first bracket is provided on the movable seat body, and the motor is detachably mounted on the first bracket;

[0013] The collecting chamber comprises two mutually parallel first side plates and two mutually parallel second side plates, the first side plates and the second side plates are both arranged vertically, and the lower ends of the first side plates and the second side plates are fixed on the movable seat body, the upper ends of the second side plates are provided with horizontal first connecting plates, the upper ends of the first side plates are provided with arc-shaped positioning grooves, the two side walls of the cylinder are provided with horizontal second connecting plates, the two ends of the cylinder are located in the positioning grooves, and the second connecting plates are connected to the first connecting plates by a plurality of bolts;

[0014] The storage bin is detachably arranged on the upper part of the cylinder;

[0015] A second bracket is arranged on the movable seat body on the outer side of the second side plate, and the transmission mechanism is detachably mounted on the second bracket. The upper end of the transmission mechanism is connected to the storage bin through a detachable first bellows, and the lower end of the transmission mechanism is connected to the collection chamber through a detachable second bellows.

[0016] Furthermore, the elastic ball is a hollow silica gel ball.

[0017] Furthermore, the transmission mechanism is a spiral conveying tube.

[0018] Furthermore, the main shaft of the motor is connected to a rotating shaft through a torque sensor, and the fan blades are mounted on the rotating shaft;

[0019] A speed detection element for detecting the speed of the rotating shaft is arranged in the cylinder, and both the feeding door and the discharging door are connected with a door opening and closing mechanism;

[0020] The torque sensor, the rotation speed detection element and the door opening and closing mechanism are all connected to a controller.

[0021] Furthermore, the feed door and the discharge door are both slidably matched with the cylinder body, the outer walls of the feed door and the discharge door are provided with racks, the door opening and closing mechanism includes a gear and a door opening and closing motor, the gear is installed on the main shaft of the door opening and closing motor, and the gear is meshed with the rack.

[0022] Furthermore, a laser vibrometer is arranged in the cylinder, and the laser vibrometer is connected to the controller.

[0023] Furthermore, the inner cavity of the collection chamber is divided into an upper cavity and a lower cavity by an inclined ash filter plate, the bottom of the upper cavity is connected to the storage bin through a transmission mechanism, and the side wall of the lower cavity is provided with an openable and closable ash cleaning door.

[0024] Furthermore, the dry separation mechanism includes a vertically arranged separation cylinder, a vertical filter cylinder is arranged in the separation cylinder, the lower port of the filter cylinder is connected to the dust collecting chamber, and the upper port of the filter cylinder is connected to the air outlet through a pipe; there is a spacing between the separation cylinder and the filter cylinder, and an exhaust port is arranged at the top of the separation cylinder.

[0025] The beneficial effects of the utility model are as follows: the utility model utilizes fan blades to drive multiple elastic balls to move irregularly, and the elastic balls collide with the fan blades, the fan blades, the first filter frame, the second filter frame and the inner wall of the cylinder, generating certain vibrations, which can remove dust adhering to the fan blades, the fan blades, the first filter frame, the second filter frame and the inner wall of the cylinder, and can clean multiple parts at one time, with high cleaning efficiency, without the need to set up multiple cleaning mechanisms, and simplifying the internal structure of the cylinder. In addition, the elastic balls move irregularly, and after a certain period of continuous movement, the elastic balls can fully contact and collide with the two sides of the fan blades, ensuring that the two sides of the fan blades are fully cleaned without leaving dead corners. Compared with a brush, the cleaning effect is better and no sewage is generated. The elastic balls are made of a material with good elasticity and low strength, and will not cause damage to the fan blades during the collision process. When cleaning is not required, the elastic balls are stored in the storage bin and will not affect the normal rotation of the fan blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a main schematic diagram of the utility model;

[0027] Figure 2 yes Figure 1Schematic cross-sectional view of AA in the figure;

[0028] Figure 3 yes Figure 1 A partial cross-sectional schematic diagram of the middle BB;

[0029] Figure numerals: 1—cylinder; 2—first filter frame; 3—motor; 4—fan blades; 5—second filter frame; 6—storage bin; 7—feed door; 8—discharge door; 9—collection chamber; 91—first side plate; 92—second side plate; 93—first connecting plate; 94—second connecting plate; 10—transmission mechanism; 11—elastic ball; 12—torque sensor; 13—rotating shaft; 14—speed detection element; 15—door opening and closing mechanism; 16—controller ; 17—rack; 18—gear; 19—door opening and closing motor; 20—ash filter plate; 21—ash cleaning door; 22—laser vibrometer; 23—mounting seat; 231—fixed seat body; 232—movable seat body; 233—adjusting shaft; 234—adjusting motor; 24—first bracket; 25—second bracket; 26—first bellows; 27—second bellows; 28—separation cylinder; 29—filter cylinder; 30—dust collecting chamber; 31—exhaust port. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0031] The utility model of the mine dry dust removal system, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a fan and a dry separation mechanism, wherein the fan includes a cylinder 1, one end of the cylinder 1 is arranged at the air inlet, a first filter frame 2 is arranged in the air inlet, a motor 3 is arranged at the other end of the cylinder 1, a main shaft of the motor 3 is connected to a fan blade 4, and an air outlet is arranged on the cylinder 1.

[0032] A second filter frame 5 is provided in the air outlet;

[0033] A storage bin 6 is provided at the upper portion of the cylinder 1, the bottom of the storage bin 6 is connected to the inner cavity of the cylinder 1 through a feed port, an openable and closable feed door 7 is provided in the feed port, a discharge port is provided at the bottom of the cylinder 1, a detachable discharge door 8 is provided in the discharge port, a collecting chamber 9 is provided below the discharge port, the collecting chamber 9 is connected to the storage bin 6 through a transmission mechanism 10, a plurality of elastic balls 11 are provided in the storage bin 6, and a diameter of the elastic balls 11 is larger than the filter hole size of the second filter frame 5 and the first filter frame 2.

[0034] The cylinder 1 is a circular cylinder, which can be a metal cylinder. One end of the cylinder 1 is used as an air inlet, and the other end can be provided with an end plate. The motor 3 is provided outside the end plate. The main shaft of the motor 3 passes through the end plate and is connected to the fan blade 4. The motor 3 and the air flow channel are separated to prevent dust in the air flow from entering the motor 3. The motor 3 can be dustproofed with a dust cover. The fan blade 4 can adopt the existing technology. Driven by the motor 3, the fan blade 4 rotates to inhale the outside air and discharge it from the air outlet. The air outlet is connected to the dust removal mechanism to achieve dust removal of the air.

[0035] The first filter frame 2 is used to prevent large-volume impurities from entering the fan, such as plastic films, leaves and other debris from entering the fan and affecting the normal operation of the fan blades 4. The first filter frame 2 and the second filter frame 5 also play the role of intercepting the elastic ball 11 to prevent the elastic ball 11 from being discharged from the cylinder 1 through the air outlet and the air inlet during dust removal.

[0036] The storage bin 6 is used to store the elastic balls 11. When the feed door 7 is opened, the elastic balls 11 in the storage bin 6 can enter the cylinder 1. After the dust removal is completed, the discharge door 8 is opened, and the elastic balls 11 can gradually enter the collection chamber 9 through the discharge port. The elastic balls 11 are made of spheres with good elasticity and low hardness, such as silica gel, rubber and other materials. Preferably, hollow silica gel balls are used, which are light in weight and can move quickly under the drive of the fan blades 4 without damaging the fan blades 4. They are low in cost and can be replaced at any time, and the maintenance cost is low.

[0037] When dust removal is not needed, the elastic ball 11 is located in the storage bin 6 and will not affect the normal operation of the fan blade 4. The feed door 7 and the discharge door 8 are closed and will not affect the flow of air.

[0038] During dust removal, the feed door 7 is opened, and the elastic ball 11 in the storage bin 6 falls into the cylinder 1. Driven by the fan blades 4, the elastic ball 11 makes irregular movements, and the elastic ball 11 collides with the fan blades 4, the first filter frame 2, the second filter frame 5 and the inner wall of the cylinder 1. Under the action of the collision, the fan blades 4, the first filter frame 2, the second filter frame 5 and the cylinder 1 vibrate, thereby removing the dust attached to the fan blades 4, the first filter frame 2, the second filter frame 5 and the inner wall of the cylinder 1. At this time, the discharge door 8 is in a closed state. When the elastic ball 11 contacts the moving blades 4, it may move toward the inner wall of the cylinder 1 or toward the first filter frame 2 or the second filter frame 5 under the impact of the blades 4. When the elastic ball 11 reaches the inner wall of the cylinder 1, the first filter frame 2 or the second filter frame 5, it is rebounded and reaches other components. The movement trajectory of the elastic ball 11 is uncontrollable, but after a period of time, the elastic ball 11 can fully contact and collide with the blades 4, the first filter frame 2, the second filter frame 5 and the inner wall of the cylinder 1 to ensure the dust removal effect. The cleaning duration can be determined through experiments.

[0039] After dust removal is completed, the discharge door 8 is opened, the feed door 7 is closed, and the elastic balls 11 in the cylinder 1 enter the collection chamber 9, and then are transported to the storage bin 6 through the transmission mechanism 10. After the discharge door 8 is opened, the elastic balls 11 gradually enter the collection chamber 9 through the discharge port, and after all the elastic balls 11 enter the collection chamber 9, the discharge door 8 is closed.

[0040] The utility model uses multiple elastic balls 11 that do not need to move to clean the components inside the cylinder 1. Multiple parts can be cleaned at one time, which is more efficient, and both sides of the fan blades 4 can be fully cleaned, so the cleaning effect is better. In addition, when not cleaning, the elastic balls 11 are in the storage bin 6, which does not affect the normal operation of the fan blades 4. The storage bin 6, the transmission mechanism 10, the collection chamber 9 and other matching components are all arranged outside the cylinder 1, which will not occupy the space inside the cylinder 1, and will not increase the air flow resistance inside the cylinder 1, thereby ensuring the ventilation volume of the fan.

[0041] During mine dust removal, the location of mining operations is constantly changing, and the location where dust is generated will also be constantly changing. In order to ensure the dust removal effect, the dust removal fan should be able to flexibly adjust the direction of the air inlet and its own position. However, traditional dust removal fans are fixedly installed and difficult to disassemble and move.

[0042] In the utility model, in order to use the dust removal fan more flexibly to remove dust from the mine, it also includes a mounting seat 23, the mounting seat 23 includes a fixed seat body 231 and a movable seat body 232 arranged on the upper surface of the fixed seat body 231, and a vertical adjustment shaft 233 is arranged at the center of the movable seat body 232. The adjustment shaft 233 is rotatably mounted on the mounting seat 23, and the adjustment shaft 233 is connected to an adjustment motor 234; the cylinder 1, the collection chamber 9 and the motor 3 are all installed on the movable seat body 232, and a group of rollers are arranged at the bottom of the fixed seat body 231.

[0043] A plurality of positioning holes can be set on the edge of the fixed seat body 231. When it is put into use, the positioning studs are passed downward through the positioning holes and driven into the ground, and then nuts are set on the top of the positioning studs to lock the fixed seat body 231, so that the entire dust removal fan remains fixed. When the direction of the air inlet needs to be adjusted, the adjusting motor 234 is used to drive the adjusting shaft 233 to rotate to an appropriate angle, and the adjusting shaft 233 drives the movable seat body 232 to rotate, and the cylinder 1 on the movable seat body 232 rotates synchronously with the movable seat body 232 to adjust the direction of the air inlet, so that the air inlet can be aligned with the position where dust is generated to ensure the dust removal effect. Since a group of rollers are set at the bottom of the fixed seat body 231, the dust removal fan can be pushed to move to a suitable position as a whole. In order to reduce the rotational resistance of the movable seat body 232, a plurality of semicircular grooves can be set on the upper surface of the fixed seat body 231. The grooves are evenly distributed in a circle around the adjusting shaft 233. A supporting ball is set in each groove. At the same time, a circular slide groove is set on the lower surface of the movable seat body 232. The upper part of the supporting ball is located in the slide groove. This structure is similar to a thrust ball bearing, which can reduce the friction force when the movable seat body 232 rotates and reduce the load of the adjusting motor 234.

[0044] The above-mentioned dust removal fan can be moved flexibly within a certain range. When the dust removal fan needs to be transferred over a long distance, a vehicle is required for transportation. The mine dust removal fan is large in size and weight, and it is difficult to transport it as a whole. In order to solve the problem of long-distance transportation, the utility model is provided with a first bracket 24 on the movable seat body 232, and the motor 3 can be detachably installed on the first bracket 24. Specifically, the motor 3 can be installed on the first bracket 24 by multiple bolts.

[0045] The collecting chamber 9 includes two mutually parallel first side plates 91 and two mutually parallel second side plates 92, the first side plates 91 and the second side plates 92 are both vertically arranged, and the lower ends of the first side plates 91 and the second side plates 92 are fixed on the movable seat body 232, the upper end of the second side plate 92 is provided with a horizontal first connecting plate 93, the upper end of the first side plate 91 is provided with an arc-shaped positioning groove, and the two side walls of the cylinder 1 are provided with a horizontal second connecting plate 94, the two ends of the cylinder 1 are located in the positioning groove, and the second connecting plate 94 is connected to the first connecting plate 93 by a plurality of bolts. After removing the connecting bolts of the second connecting plate 94 and the first connecting plate 93, the connection between the collecting chamber 9 and the cylinder 1 can be released.

[0046] The storage bin 6 is detachably arranged on the upper part of the cylinder 1 .

[0047] A second bracket 25 is provided on the movable seat body 232 on the outer side of the second side plate 92, and the transmission mechanism 10 is detachably mounted on the second bracket 25. The upper end of the transmission mechanism 10 is connected to the storage bin 6 through a detachable first bellows 26, and the lower end of the transmission mechanism 10 is connected to the collection chamber 9 through a detachable second bellows 27. The first bellows 26 and the second bellows 27 are both arranged obliquely, the upper end of the first bellows 26 is connected to the transmission mechanism 10, the lower end of the first bellows 26 is connected to the storage bin 6, the upper end of the second bellows 27 is connected to the collection chamber 9, and the lower end of the second bellows 27 is connected to the transmission mechanism 10, so as to ensure that the elastic ball 11 in the collection chamber 9 can enter the transmission mechanism 10 along the second bellows 27, and the elastic ball 11 at the upper end of the transmission mechanism 10 can enter the storage bin 6 along the first bellows 26. The first bellows 26 and the second bellows 27 are flexible pipes that can expand and contract and deform. When installing the transmission mechanism 10, even if the installation position has a certain error, the first bellows 26 can effectively connect the transmission mechanism 10 with the storage bin 6, and the second bellows 27 can effectively connect the transmission mechanism 10 with the collection chamber 9, thereby reducing the difficulty of assembly.

[0048] When the dust removal fan needs to be transported over a long distance, the connection between the motor 3 and the first bracket 24 can be released, the connecting bolts between the second connecting plate 94 and the first connecting plate 93 can be removed, the first bellows 26 and the second bellows 27 can be removed, the storage bin 6 can be removed, and the connection between the transmission mechanism 10 and the second bracket 25 can be released. The motor 3 and the cylinder 1 can be transported as a part, the collection chamber 9 and the mounting seat 23 can be transported as a part, and the transmission mechanism 10 and the storage bin 6 can be transported separately, thereby reducing the difficulty of transporting the fan. After transporting to the destination, the storage bin 6, the transmission mechanism 10, the motor 3 and other components can be installed. Since there are no precisely matched components, the installation difficulty is low.

[0049] The transmission mechanism 10 can adopt various existing particle material lifting mechanisms, such as a spiral conveying pipe, etc.

[0050] The utility model can periodically open the feed door 7 for dust removal, but since the dust content and air humidity in the air are not fixed, and the speed at which the fan blades 4 and other components adhere to the dust is not fixed, it is difficult to ensure the timeliness of dust removal by regular dust removal. In the utility model, the main shaft of the motor 3 is connected to the rotating shaft 13 through the torque sensor 12, and the fan blades 4 are installed on the rotating shaft 13; a speed detection element 14 for detecting the speed of the rotating shaft 13 is provided in the cylinder 1, and the feed door 7 and the discharge door 8 are both connected to the door opening and closing mechanism 15; the torque sensor 12, the speed detection element 14 and the door opening and closing mechanism 15 are all connected to the controller 16.

[0051] The motor 3 of the utility model adopts an AC motor. It is known that when the output power of the motor 3 remains stable, its output torque and speed are also in a stable state, and the power P, speed n and torque T generally satisfy the following relationship:

[0052] T=9550*P / n.

[0053] The output torque of the motor 3 is related to the load. When the load increases, the torque increases and the speed decreases. When the fan is working normally, the torque and speed should be stable in the rated range. As the fan blades 4 are gradually stained with dust, the weight of the fan blades 4 gradually increases, the wind resistance gradually increases, and the load gradually increases. The output torque of the motor 3 gradually increases, and the speed gradually decreases. The utility model detects the output torque of the motor 3 through the torque sensor 12, and can judge the amount of dust on the fan blades 4. The torque sensor 12 transmits the detection signal to the controller 16. The controller 16 judges the detection result of the torque sensor 12. When the torque value detected by the torque sensor 12 is greater than the set normal range, it indicates that more dust is adhered to the fan blades 4. The controller 16 controls the switch door mechanism 15 to open the feed door 7, so that the elastic ball 11 enters the cylinder 1 for dust removal. The normal range of the set torque value can be determined by experiment, that is, dust is sprayed on the fan blades 4, and the amount of dust sprayed just affects the normal operation of the fan blades 4. At this time, the torque output by the motor 3 to the fan blades 4 is detected, and the normal torque range is determined based on the torque value.

[0054] It can be seen that the utility model can automatically detect the amount of dust on the fan blades 4 and automatically remove dust without manual operation, thus ensuring the timeliness of dust cleaning and dust removal.

[0055] When the motor 3 is damaged, its output power may be reduced, and the speed may also be reduced. Therefore, the utility model is also provided with a speed detection element 14, which can be an existing element such as a Hall sensor, for detecting the speed of the motor 3 and the fan blade 4, and transmitting the detection signal to the controller 16. The controller 16 can calculate the output power of the motor 3 according to the relationship between power, speed and torque. When the output power of the motor 3 is lower than the normal range, it indicates that the motor 3 is damaged and needs to be detected. The controller 16 can be connected to an alarm, and when the motor 3 is damaged, the alarm is controlled to sound an alarm, notifying the staff to carry out maintenance in time.

[0056] The discharge door 8 can be closed only after all the elastic balls 11 have entered the collection chamber 9. However, due to the irregular movement of the elastic balls 11, it is difficult to ensure that all the elastic balls 11 enter the collection chamber 9 within the set time. The elastic balls 11 produce sound when they collide with other components. Therefore, it is possible to judge whether all the elastic balls 11 have entered the collection chamber 9 by listening to the sound, but manual operation is required, which is not convenient. The utility model is provided with a laser vibrometer 22 in the cylinder 1, and the laser vibrometer 22 is connected to the controller 16. When the fan blade 4 collides with the elastic ball 11, the fan blade 4 vibrates, and its amplitude is greater than the amplitude during normal operation. The utility model uses the laser vibrometer 22 to detect the amplitude of the fan blade 4, and judges whether the fan blade 4 has collided with the elastic ball 11 according to the amplitude, and then judges whether there are elastic balls 11 remaining in the cylinder 1. After the controller 16 judges that there are no elastic balls 11 in the cylinder 1, it controls the door switch mechanism 15 to close the discharge door 8.

[0057] The feed door 7 and the discharge door 8 are both slidably matched with the cylinder 1. The sliding direction of the feed door 7 and the discharge door 8 is consistent with the axial direction of the cylinder 1. The outer walls of the feed door 7 and the discharge door 8 are provided with a rack 17. The door opening and closing mechanism 15 includes a gear 18 and a door opening and closing motor 19. The gear 18 is installed on the main shaft of the door opening and closing motor 19, and the gear 18 is meshed with the rack 17. When the feed door 7 and the discharge door 8 are closed, the feed port and the discharge port are completely closed. When the feed door 7 or the discharge door 8 needs to be opened, the door opening and closing motor 19 is started, and the door opening and closing motor 19 drives the gear 18 to rotate, and the gear 18 drives the rack 17 to move linearly, and the rack 17 drives the feed door 7 or the discharge door 8 to move linearly to complete the door opening. When closing the door, the door opening and closing motor 19 can be reversed. In order to ensure stable movement of the feed gate 7 and the discharge gate 8, dovetail grooves can be set on the side walls of the feed port and the discharge port, and dovetail-shaped sliders can be set on the sides of the feed gate 7 and the discharge gate 8. The sliders are located in the dovetail grooves and slide in cooperation with the dovetail grooves.

[0058] During dust cleaning, some dust will enter the collection chamber 9. In order to separate the elastic ball 11 and the dust, the inner cavity of the collection chamber 9 is divided into an upper cavity and a lower cavity by the inclined dust filter plate 20. The bottom of the upper cavity is connected to the storage bin 6 through the transmission mechanism 10, and the side wall of the lower cavity is provided with an openable and closable dust cleaning door 21. After the elastic ball 11 enters the collection chamber 9, it falls on the dust filter plate 20 and rolls down along the dust filter plate 20. The dust passes through the filter holes of the dust filter plate 20 and falls into the lower cavity below. The dust can be cleaned by opening the dust cleaning door 21 at regular intervals.

[0059] The surface of the fan blade 4 is provided with a wear-resistant coating, which can improve the wear resistance of the fan blade 4 and extend the service life. The wear-resistant coating is preferably a conductive wear-resistant coating. When the fan blade 4 generates static electricity, the charge can be transferred to the main shaft of the motor 3 through the wear-resistant coating, thereby quickly eliminating the static electricity on the fan blade 4 and preventing dust from being adsorbed on the fan blade 4 through static electricity.

[0060] In the utility model, the dry separation mechanism can adopt commonly used dust removal equipment such as dust removal bags. Preferably, the dry separation mechanism includes a vertically arranged separation cylinder 28, a vertical filter cylinder 29 is arranged in the separation cylinder 28, the lower end of the filter cylinder 29 is connected to the dust collecting chamber 30, and the upper end of the filter cylinder 29 is connected to the air outlet through a pipeline; there is a spacing between the separation cylinder 28 and the filter cylinder 29, and an exhaust port 31 is arranged at the top of the separation cylinder 28.

[0061] The side wall of the filter cartridge 29 is provided with a plurality of filter holes, or a plurality of air outlet holes are provided on the side wall of the filter cartridge 29, and a filter cloth is provided on the inner wall of the filter cartridge 29, as long as the dust in the air can be filtered out. The air discharged from the air outlet of the fan enters the filter cartridge 29 through the pipeline, and the gas can be discharged into the separation cylinder 28 through the filter holes of the filter cartridge 29, and then emptied through the exhaust port 31 at the top of the separation cylinder 28, while the dust stays inside the filter cartridge 29 and falls into the dust collecting chamber 30. The dust inside the dust collecting chamber 30 and the inner wall of the filter cartridge 29 can be cleaned regularly.

[0062] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Mine dry dust removal system, including fans and dry separation mechanisms, The fan comprises a cylinder (1), one end of the cylinder (1) is arranged at an air inlet, a first filter frame (2) is arranged in the air inlet, a motor (3) is arranged at the other end of the cylinder (1), a main shaft of the motor (3) is connected to a fan blade (4), and an air outlet is arranged on the cylinder (1), characterized in that: A second filter frame (5) is arranged in the air outlet; A storage bin (6) is arranged at the top of the cylinder (1), the bottom of the storage bin (6) is connected to the inner cavity of the cylinder (1) through a feed port, an openable and closable feed door (7) is arranged in the feed port, a discharge port is arranged at the bottom of the cylinder (1), a detachable discharge door (8) is arranged in the discharge port, a collection chamber (9) is arranged below the discharge port, the collection chamber (9) is connected to the storage bin (6) through a transmission mechanism (10), a plurality of elastic balls (11) are arranged in the storage bin (6), and the diameter of the elastic balls (11) is larger than the filter hole size of the second filter frame (5) and the first filter frame (2).

2. The mine dry dust removal system according to claim 1, characterized in that: The fan further comprises a mounting seat (23), wherein the mounting seat (23) comprises a fixed seat body (231) and a movable seat body (232) arranged on the upper surface of the fixed seat body (231), wherein a vertical adjustment shaft (233) is arranged at the center of the movable seat body (232), wherein the adjustment shaft (233) is rotatably mounted on the mounting seat (23), and wherein the adjustment shaft (233) is connected to an adjustment motor (234); the cylinder (1), the collecting chamber (9) and the motor (3) are all mounted on the movable seat body (232), and a group of rollers are arranged at the bottom of the fixed seat body (231).

3. The mine dry dust removal system according to claim 2, characterized in that: The movable seat body (232) is provided with a first bracket (24), and the motor (3) is detachably mounted on the first bracket (24); The collecting chamber (9) comprises two mutually parallel first side plates (91) and two mutually parallel second side plates (92), the first side plates (91) and the second side plates (92) are both arranged vertically, and the lower ends of the first side plates (91) and the second side plates (92) are fixed on the movable seat body (232), the upper end of the second side plate (92) is provided with a horizontal first connecting plate (93), the upper end of the first side plate (91) is provided with an arc-shaped positioning groove, and the two side walls of the cylinder (1) are provided with horizontal second connecting plates (94), the two ends of the cylinder (1) are located in the positioning groove, and the second connecting plate (94) is connected to the first connecting plate (93) by a plurality of bolts; The storage bin (6) is detachably arranged on the upper part of the cylinder (1); A second bracket (25) is provided on the movable seat body (232) on the outer side of the second side plate (92), and the transmission mechanism (10) is detachably mounted on the second bracket (25). The upper end of the transmission mechanism (10) is connected to the storage bin (6) via a detachable first bellows (26), and the lower end of the transmission mechanism (10) is connected to the collection chamber (9) via a detachable second bellows (27).

4. The mine dry dust removal system according to claim 1, characterized in that: The elastic ball (11) is a hollow silica gel ball.

5. The mine dry dust removal system according to claim 1, characterized in that: The transmission mechanism (10) is a spiral transmission tube.

6. The mine dry dust removal system according to claim 1, characterized in that: The main shaft of the motor (3) is connected to a rotating shaft (13) via a torque sensor (12), and the fan blade (4) is mounted on the rotating shaft (13); A rotation speed detection element (14) for detecting the rotation speed of the rotating shaft (13) is arranged in the cylinder (1), and the feed door (7) and the discharge door (8) are both connected to a door opening and closing mechanism (15); The torque sensor (12), the rotation speed detection element (14) and the door opening and closing mechanism (15) are all connected to a controller (16).

7. The mine dry dust removal system according to claim 6, characterized in that: The feed door (7) and the discharge door (8) are both slidably matched with the cylinder (1); the outer walls of the feed door (7) and the discharge door (8) are provided with racks (17); the door opening and closing mechanism (15) comprises a gear (18) and a door opening and closing motor (19); the gear (18) is mounted on the main shaft of the door opening and closing motor (19), and the gear (18) is meshed with the rack (17).

8. The mine dry dust removal system according to claim 6, characterized in that: A laser vibrometer (22) is arranged in the cylinder (1), and the laser vibrometer (22) is connected to the controller (16).

9. The mine dry dust removal system according to claim 1, characterized in that: The inner cavity of the collection chamber (9) is divided into an upper cavity and a lower cavity by an inclined ash filter plate (20); the bottom of the upper cavity is connected to the storage bin (6) via a transmission mechanism (10); and the side wall of the lower cavity is provided with an openable and closable ash cleaning door (21).

10. The mine dry dust removal system according to claim 1, characterized in that: The dry separation mechanism comprises a vertically arranged separation cylinder (28), a vertical filter cylinder (29) being arranged inside the separation cylinder (28), a lower end of the filter cylinder (29) being connected to a dust collecting chamber (30), and an upper end of the filter cylinder (29) being connected to an air outlet via a pipeline; a spacing is provided between the separation cylinder (28) and the filter cylinder (29), and an exhaust port (31) is provided at the top of the separation cylinder (28).

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