CN110171692A - A kind of belt conveyor based on automatic dust removing and bottom purge - Google Patents

Abstract

The invention discloses a belt conveyor based on automatic dust removal and bottom cleaning, which belongs to the field of material conveying equipment. The present invention comprises the blanking cleaning device that is arranged on the belt conveyor blanking surface below the belt conveyor and the dust removal device that is arranged on the feed end and/or the discharge end of the belt conveyor through respective abutments, that is, the dust removal device The device can be installed at the feed end or discharge end of the belt conveyor to process the dust at the feed end or discharge end, wherein: the blanking cleaning device includes a reciprocating scraper that can reciprocate on the blanking surface of the belt conveyor Plate mechanism; the reciprocating scraper mechanism can scrape the accumulated material on the discharge surface of the belt conveyor to the single end or both ends of the discharge surface of the belt conveyor in the length direction. In the present invention, the synergistic effect of dust removal on the upper part and cleaning on the lower part avoids dust pollution and collects the accumulated material at the bottom in time. Moreover, both the adsorbed dust and the accumulated material from scraping can be returned to the belt conveying surface, which is environmentally friendly, has no waste, and can realize automation Production.

Description

A belt conveyor based on automatic dust removal and bottom cleaning

technical field

The invention belongs to the field of material conveying equipment, and more specifically relates to a belt conveyor based on automatic dust removal and bottom cleaning.

Background technique

Conveyor belt series products are widely used in metallurgy, building materials, electric power, chemical industry, cement, ports, docks, coal, mining, grain and oil, food, feed, and other industries and departments. Belt conveyor is a kind of machinery that is driven by friction to transport materials in a continuous manner. It is mainly composed of frame, conveyor belt, idler roller, roller, tensioning device, transmission device, etc. It can form a material conveying process from the initial feeding point to the final unloading point on a certain conveying line. It can not only transport broken materials, but also transport finished items. In addition to pure material transportation, it can also cooperate with the requirements of the technological process in the production process of various industrial enterprises to form a rhythmic assembly line. Belt conveyors can be divided into heavy belt conveyors such as mining belt conveyors according to their conveying capacity, and light belt conveyors such as those used in electronic plastics, food light industry, chemical and pharmaceutical industries. The belt conveyor has strong conveying capacity, long conveying distance, simple structure and easy maintenance, and can conveniently implement programmed control and automatic operation. The continuous or intermittent movement of the conveyor belt is used to transport the items below 100KG or powdery and granular items. It runs at high speed, stable, low noise, and can be transported up and down slopes.

The existing belt conveying device, when conveying slightly viscous materials, will inevitably adhere to the belt and move with the belt. When the belt conveying surface turns to the bottom of the device, the adhered material will fall due to the vibration of the device or the influence of its own weight. , It is not easy to clean due to the small operating space. Moreover, when conveying relatively dry materials, such as granular coal and pulverized coal, after being dried, the dried coal falls directly on the belt of the conveyor from the outlet of the dryer. The water content is less than 5%, and it is relatively dry. Therefore, during the process of coal falling from the outlet of the dryer to the belt and the process of feeding at the end of the belt, the dust at both ends of the coal drop is very large. Not only the site environment is poor, but also a large amount of pulverized coal will be caused. Waste, in the long-term use process, a large amount of coal dust discharge will inevitably cause environmental pollution, resource waste and cost increase.

After searching, the Chinese patent publication number is: CN206255571U, and the publication date is: the patent document on June 16, 2017, which discloses a belt conveyor return cleaning and strengthening combination device, which belongs to the technical field of port ship operation. The technical solution is: a cleaner is provided under the return belt behind the pinch roller and the supporting roller, and a tray is arranged under the cleaner; the tray is arranged on a tray support and arranged on an inclined plane, and the highest point of the tray is located at the side of the cleaner. Below, the lowest point of the tray is at the discharge port, and the accumulated material cleaned by the cleaner automatically flows back to the discharge port. The invention does not increase additional power consumption, is convenient for cleaning accumulated materials, and can solve the problem of returning material and accumulated materials to the greatest extent, but it requires manual cleaning of materials in the tray, which is not conducive to automatic production.

The Chinese patent announcement number is: CN207107965U, and the publication date is: the patent document on March 16, 2018, which discloses a belt conveyor dust collector, which involves belt conveyor dust removal technology for granular coal and pulverized coal conveying and pulverized coal recycling technology field. The air collection hood is set up by covering the belt, and the air collection hood is connected with the bag filter through the flow guide device, which realizes the complete sealing of the entire belt conveyor, and realizes dust removal and recovery in a fully sealed environment, so as to completely Solve the dust caused by the belt conveying process. This utility model is a fully enclosed environment and a bag filter, which has poor versatility, high cost of dust removal, and inconvenient cleaning of the bag filter.

Contents of the invention

1. Problems to be solved

The present invention provides a belt conveyor based on automatic dust removal and bottom cleaning in view of the problem that the accumulation of material at the bottom of the existing belt conveyor is not easy to clean up and the dust is raised during the feeding and discharging process of conveying dry materials. . In the present invention, by setting a reciprocating scraper mechanism, the accumulated material is automatically scraped and sent to the single end or both ends of the belt conveyor in the length direction of the blanking surface, and the material is passed through the feeding end and the discharging end of the belt conveyor. The dust removal device is installed, and through the synergistic effect of the filter cartridge and the negative pressure mechanism, the dust at the feeding end and the discharging end of the belt conveyor is processed to realize automatic production.

2. Technical solution

In order to solve the above problems, the present invention adopts the following technical solutions.

A belt conveyor based on automatic dust removal and bottom cleaning, including a belt conveyor blanking surface arranged below the belt conveyor (the belt conveyor blanking surface is a belt conveyor that reciprocates and transports materials. The falling material falls to the receiving surface under the belt conveyor due to the influence of its own weight or equipment vibration, which is generally slightly greater than or equal to the belt width of the belt conveyor), and the cleaning device on the belt conveyor and the belt conveyor are installed on the belt conveyor through their respective supports. The dust removal device above the feed end and/or discharge end, that is, the dust removal device can be installed at the feed end or discharge end of the belt conveyor to process the dust at the feed end or discharge end, or two sets of dust removal devices can be installed separately Placed at the feed end and discharge end of the belt conveyor, and handle the dust at both ends, of which:

The blanking cleaning device includes a reciprocating scraper mechanism capable of reciprocating movement on the blanking surface of the belt conveyor; the reciprocating scraper mechanism can scrape the accumulated material on the blanking surface of the belt conveyor to the length direction of the blanking surface of the belt conveyor Blanking at one or both ends of the material, under the traction of the power mechanism, automatic production can be realized;

The dust removal device includes a box fixed on each support platform and a negative pressure mechanism connected to the outside of the box. The negative pressure mechanism can be an induced draft fan or a raised chimney; the bottom of the box is opened outwards, facing the belt Above the feed end and/or discharge end of the conveyor, there is a filter cartridge installed vertically inside the box, which guides the dust to the filter cartridge through negative pressure, and is absorbed by the filter cartridge, thereby achieving the purpose of dust removal.

Further, the reciprocating scraper mechanism includes a scraper, which is a single scraper or two scrapers facing away from each other and fixedly connected. The scraper reciprocates on the blanking surface of the belt conveyor through traction to achieve the purpose of scraping back and forth.

Furthermore, the scraper is in the shape of a triangle or trapezoid that opens outwards, which is convenient for collecting accumulated materials in the middle of the scraper. This scraping method is very beneficial for the treatment of accumulated materials. After all, there are relatively few falling materials under the belt conveyor. The outwardly opened triangle or trapezoidal shape is similar to the shape of a bell mouth. When the scraper scrapes and feeds the accumulated material, it generally does not overflow on the scraper, and even if it overflows, it can be collected at both ends of the belt conveyor in the direction of the length of the blanking surface. , there is no need to consider the problem of overflow.

Further, the blanking cleaning device also includes material guide baffles arranged vertically and parallelly on both sides of the belt conveyor’s blanking surface, and the two material guide baffles form a material guide groove; the reciprocating scraper mechanism The accumulated material is scraped back and forth inside, and the material guide groove plays the role of guiding the material, so as to prevent the accumulated material from deflecting out of the boundary of the belt conveyor's blanking surface during scraping; the filter cartridge is covered with a filter layer to improve the dust removal efficiency; the negative pressure mechanism is An induced draft fan, the induced draft fan communicates with the casing through an induced draft pipe, and the motor power of the induced draft fan can be selected according to needs to improve its versatility.

Further, the blanking cleaning device also includes a winch and a pulley mechanism fixedly arranged at both ends of the material guide baffle respectively; Realize the single-end blanking in the length direction of the belt conveyor blanking surface, which is convenient for centralized collection. The single-end blanking can be set at the discharge port of the belt conveyor, so that the accumulated material can be returned to the discharge port in time; In the membrane filter cartridge, the filter layer is a filter membrane layer, and the filter membrane layer can be composed of a filter material layer and a polytetrafluoroethylene microporous membrane, which can improve the dust removal effect while improving the dust removal efficiency.

Further, the reciprocating scraper mechanism includes scrapers whose two sides are respectively attached to the guide baffles on both sides; The two bearings fixed on the two ends of the rotating shaft, the traction rope reciprocates around the runner, and the traction rope can directly use high-strength ropes such as steel wire rope, nylon rope, fiber rope, etc.; The air outlet on the upper part communicates and is fixedly connected.

Further, the reciprocating scraper mechanism has a frame structure, including a scraper fixedly connected in the frame structure, the frame structure can improve the stability of the scraper; the bottom of the frame structure is symmetrically fixed close to the blanking surface of the belt conveyor There are 2 pairs of rollers arranged horizontally; the rolling surfaces of the rollers are close to the guide baffle to reduce the frictional resistance of the scraper and improve the scraping efficiency; The effect of secondary dust removal.

Further, the frame structure is formed by connecting a pair of horizontal bars and vertical plates; the two vertical plates are respectively close to the two guide baffles to achieve the purpose of scraping the material as thoroughly as possible; the rollers are connected to the bottom of the vertical plates; dust removal The device also includes an air tank fixed on the outer wall of the box through a bracket and communicated with the filter cartridge in the box. When the belt conveyor stops conveying materials, the high-pressure gas in the air tank can blow off the dust absorbed by the filter cartridge into the box. Returning to the belt conveyor, the purpose of repeated work can be achieved without dismantling the filter cartridge.

Further, the blanking cleaning device also includes a sliding rod; a sliding rod guide sleeve is fixedly connected to the cross bar, and after the sliding rod passes through the sliding rod guide sleeve, both ends of the sliding rod are respectively connected to the traction rope through connecting pieces; The reciprocating scraper mechanism also includes a rotating shaft one, a shaft sleeve, an adjustment pin and a reinforcing rod; the rotating shaft one and the cross bar are in parallel relationship, and are fixedly connected through the reinforcing rod and the cross bar; the rotating shaft one is socketed with the shaft sleeve, and the The scraper is rotationally connected to the rotating shaft through the shaft sleeve, that is, the scraper rotates along the rotating shaft through the shaft sleeve; a vertical blowing pipe is fixed inside the filter cartridge, and the blowing pipe communicates with the gas tank through the air pipe to concentrate the air pressure. Increase the blowing pressure, thereby improving the dust removal efficiency of the filter cartridge itself.

Further, the side wall surface of the sliding rod is fixedly connected with an adjusting pin capable of rotating the scraper, and the adjusting pins are arranged in parallel in pairs in the transverse direction to limit the moving distance of the scraper; the bottom surface of the sliding rod is fixedly connected with a pin capable of limiting The sliding rod passes through the limit block 1 of the slide rod guide sleeve, and the limit block 1 cooperates with the adjustment pin to make the scraper adjust within the specified range; The second limit block of the plate cooperates with the adjustment pin to press against the scraper to prevent it from rotating; the blowing pipe passes through the pressure plate and is inserted into the filter cartridge; the pressure plate is sealed and fixed on the upper port of the filter cartridge to achieve stable and uniform The injection can improve the injection effect.

3. Beneficial effects

Compared with the prior art, the beneficial effects of the present invention are:

(1) For the belt conveyor based on automatic dust removal and bottom cleaning of the present invention, the reciprocating scraper mechanism of the blanking cleaning device can only be provided with a single scraper, and the scraper moves back and forth on the blanking surface of the belt conveyor by traction to realize back and forth For the purpose of scraping, the scraper can also be set in the shape of a flared mouth, which is convenient for collecting accumulated material in the middle of the scraper. This scraping method is very beneficial for the treatment of accumulated material. After all, the material below the belt conveyor Relatively few, when the trumpet-shaped scraper scrapes the accumulated material, it generally does not overflow on the scraper, and even if it overflows, it can be collected at both ends of the length of the belt conveyor's blanking surface, so there is no need to consider the overflow. The problem of material; the dust removal device can only be installed at the feed end or discharge end of the belt conveyor with a lot of dust, to process the dust at the feed end or discharge end, guide the dust to the filter cartridge through negative pressure, and be The filter cartridge is adsorbed to achieve the purpose of dust removal;

(2) For the belt conveyor based on automatic dust removal and bottom cleaning of the present invention, the blanking and cleaning device can scrape and send accumulated materials back and forth in the material guide baffle, and play the role of leading materials, so as to avoid deviation of the accumulated materials from the belt conveyor when scraping and feeding Out of the boundary of the blanking surface; the filter cartridge of the dust removal device is a film-coated filter cartridge, and the filter layer is a filter film layer. At the same time, it can also improve the dust removal effect;

(3) The belt conveyor based on automatic dust removal and bottom cleaning of the present invention, single-end blanking in the blanking cleaning device can facilitate centralized collection, and the single-end blanking can be arranged at the discharge port of the belt conveyor, It is convenient to return the accumulated material to the discharge port in time; the high-pressure gas in the air tank of the dust removal device can blow the dust adsorbed by the filter cartridge down to the box, and then return to the belt conveyor, so that the repeated work can be achieved without disassembling the filter cartridge Purpose;

(4) The belt conveyor based on automatic dust removal and bottom cleaning of the present invention, the rolling surface of the runner in the blanking cleaning device is close to the guide baffle, reducing the frictional resistance of the scraper and improving the scraping efficiency; the spraying of the dust removal device The blowpipe communicates with the air tank through the air pipe, which can concentrate the air pressure and increase the blowing pressure, thereby improving the dust removal efficiency of the filter cartridge itself;

(5) In the belt conveyor based on automatic dust removal and bottom cleaning of the present invention, the stop block 1, the adjustment pin and the stop block 2 in the blanking cleaning device can work together, that is, to limit the scraper when the scraper needs to be turned over The adjustment range ensures the stability of one-way scraping, and the adjustment and scraping achieve both functions and effects; the pressure plate of the dust removal device presses the blowing pipe into and fixes it in the filter cartridge, which can realize stable and uniform blowing , improve the effect of blowing and removing the dust absorbed by the filter cartridge itself;

(6) The belt conveyor based on automatic dust removal and bottom cleaning of the present invention, the upper part dust removal and the lower part cleaning synergistically, promptly avoids the dust pollution, and collects the accumulated material at the bottom in time, and the accumulated dust of the adsorption and the accumulated material of the scraped material are uniform It can be returned to the belt conveying surface, which is environmentally friendly, has no waste, and can realize automatic production.

Description of drawings

Fig. 1 is the position schematic diagram of blanking cleaning device and dedusting device in the belt conveyor of the present invention;

Fig. 2 is the schematic diagram of the scraper structure of different shapes in embodiment 1;

Fig. 3 is the schematic diagram of the scraper structure of different shapes in embodiment 1;

Fig. 4 is a schematic diagram of the structure of scrapers of different shapes in Example 1;

Fig. 5 is the top view of the belt conveyor based on automatic dust removal and bottom cleaning of the present invention;

Fig. 6 is a structural schematic diagram of the reciprocating scraper mechanism in the present invention;

Fig. 7 is A-A direction sectional view in Fig. 6;

Figure 8 is a side view of the positional relationship between the scraper and the sliding rod of the present invention;

Fig. 9 is a side view of the dust removal device in the present invention;

Fig. 10 is a front view of the dust removal device in the present invention;

Figure 11 is a schematic diagram of the internal structure of the box in the present invention;

Fig. 12 is a side view of the box in the present invention.

In the figure: 1. Belt conveyor; 2. Blanking cleaning device; 3. Support platform; 4. Dust removal device; 10. Air pipe; 21. Hoist; 22. Reciprocating scraper mechanism; 23. Blanking surface of belt conveyor; 24 , material guide baffle; 25, traction rope; 26, pulley mechanism; 27, blanking temporary storage box; 28, connector; 29, sliding rod; 221, cross bar; 222, vertical plate; 223, roller; 224, Rotating shaft one; 225, scraper; 226, shaft sleeve; 227, sliding rod guide sleeve; 229, reinforcing rod; 261, bearing; 262, rotating shaft two; 263, runner; 291, limit block one; ; 2221, limit block two; 2251, scraper groove;

41. Box body; 42. Connecting pipe; 43. Induced air pipe; 44. Filter cartridge; 45. Induced fan; 46. Motor; 47. Gas tank; 48. Injection pipe; 49. Filter layer; 411. Bracket; 412 , air outlet; 413, ring platform; 451, exhaust port; 481, pressure plate.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

Example 1

A kind of belt conveyor based on automatic dust removal and bottom cleaning of the present embodiment, as shown in Figures 1, 2, and 9, includes a blanking cleaning device 2 arranged on the belt conveyor blanking surface 23 below the belt conveyor 1 And be arranged on the feed end of belt conveyor 1 and/or the dedusting device 4 above the discharge end by respective abutment 3; As the material falls to the receiving surface below the belt conveyor due to the influence of its own weight or equipment vibration, it is generally slightly greater than or equal to the belt width of the belt conveyor; The accumulated material is scraped and sent to the single end or both ends of the length direction of the belt conveyor blanking surface 23, and the reciprocating scraper mechanism 22 can only be provided with a single scraper 225 as shown in Figure 2 or as shown in Figures 3 and 4 Two of them are facing away from each other and fixedly connected. The scraper 225 reciprocates on the blanking surface 23 of the belt conveyor through the traction rope 25 to realize the purpose of scraping back and forth. The scraper 225 can be set as shown in Figures 3 and 4 The outwardly opened triangle or trapezoidal shape, that is, the outwardly opened trumpet shape, is convenient for collecting accumulated material in the middle of the scraper 225, and the traction rope 25 is connected to a power mechanism, such as a hoist 21 or a motor equipped with a reducer. This scraping method is very beneficial for the treatment of accumulated material. After all, there is relatively little material falling below the belt conveyor 1. When the trumpet-shaped scraper 225 scrapes the accumulated material, it generally does not overflow on the scraper 225, and , even if it overflows, it can be collected at both ends of the belt conveyor blanking surface 23 in the length direction, so there is no need to consider the problem of overflow; the dust removal device 4 can be set at the feed end or discharge end of the belt conveyor , to process the dust at the feed end or the discharge end, or two sets are respectively placed on the feed end and the discharge end of the belt conveyor, and the dust at both ends is processed. The box body 41 and the negative pressure mechanism connected with the box body 41, the negative pressure mechanism can use the induced draft fan and also can use the raised chimney; / Or above the discharge end, the box body 41 has a built-in vertical filter cartridge 44, which guides the dust to the filter cartridge 44 through negative pressure, and is absorbed by the filter cartridge 44, thereby achieving the purpose of dust removal.

Example 2

A kind of belt conveyor based on automatic dust removal and bottom cleaning in this embodiment is further improved on the basis of Embodiment 1. As shown in Figure 5, the blanking cleaning device 2 also includes a belt conveyor that is arranged on the blanking surface 23 width The material guide baffle 24 at the side end of the direction, and the two material guide baffles 24 form a material guide groove; the reciprocating scraper mechanism 22 scrapes and feeds the accumulated material back and forth in the material guide baffle 24, plays the role of leading material, and avoids accumulation When the material is scraped and sent, it deviates from the boundary of the belt conveyor blanking surface 23. As shown in Figure 11, the filter cartridge 44 of the dust removal device 4 is covered with a filter layer 49 to improve the dust removal efficiency; the negative pressure mechanism is an induced draft fan 45, and the induced draft fan 45 communicates with the casing 41 through the induced air pipe 43, Can select the power of the motor 46 that drives induced draft fan 45 to rotate as required, to improve its versatility, induced draft fan 45 discharges the gas after dust removal through the exhaust port 451 of induced draft fan 45.

Example 3

A kind of belt conveyor based on automatic dust removal and bottom cleaning of this embodiment is further improved on the basis of embodiment 2, as shown in Figure 5, it also includes winches fixedly arranged on the two ends of the guide baffle plate 24 respectively 21 and a pulley mechanism 26; the reciprocating scraper mechanism 22 connects the hoist 21 and the pulley mechanism 26 to realize reciprocating motion through the traction rope 25 of the cyclic reciprocating traction, and can realize the single-end blanking of the belt conveyor blanking surface 23 in the length direction, which is convenient For centralized collection, the single-end blanking can be set at the discharge port of the belt conveyor 1, so that the accumulated material can be returned to the discharge port in time. As shown in Figure 11, the filter cartridge 44 is a film-coated filter cartridge, and the filter layer 49 is a filter membrane layer. The filter membrane layer can be composed of a filter material layer and a polytetrafluoroethylene microporous membrane. At the same time, it can also improve the dust removal effect and discharge the gas that meets the national emission standards. The air induction pipe 43 communicates and is fixedly connected with the air outlet 412 on the upper part of the box body 41 through the connecting pipe 42 .

Example 4

A belt conveyor based on automatic dust removal and bottom cleaning in this embodiment is further improved on the basis of Embodiment 3. Scraper 225; as shown in Figure 5, the pulley mechanism 26 includes a second rotating shaft 262, a runner 263 sleeved and fixed in the middle of the second rotating shaft 262, and two bearings 261 respectively sleeved and fixed at both ends of the second rotating shaft 262, The traction rope 25 reciprocates around the runner 263, and the traction rope 25 can directly use high-strength ropes such as steel wire ropes, nylon ropes, and fiber ropes, preferably steel wire ropes. As shown in Figures 1, 9, 10, 11, and 12, it also includes an air tank 47 that is fixed on the outer wall of the box body 41 by a bracket 411 and communicates with the filter cartridge 44 in the box body 41. When the belt conveyor 1 stops conveying materials, the gas tank 47 The high-pressure gas in the tank 47 can blow the dust adsorbed by the filter cartridge 44 down into the casing 41, and then return to the belt conveyor 1, so that the purpose of repeated work can be achieved without disassembling the filter cartridge 44. The connecting pipe 42 is a circular pipe with a sky, a square and a ground, and the conical structure arranged in the pipe can play the effect of secondary dust removal.

Example 5

A belt conveyor based on automatic dust removal and bottom cleaning in this embodiment is further improved on the basis of Embodiment 4. As shown in Figures 5 and 6, the reciprocating scraper mechanism 22 is a frame structure, including a fixed connection to the frame The scraper 225 in the structure, the frame structure can improve the stability of the scraper; the bottom of the frame structure is close to the blanking surface 23 of the belt conveyor and is symmetrically fixedly connected with 2 pairs of rollers 223 arranged horizontally; the rolling of the rollers 223 The surface is close to the material guide baffle plate 24 to reduce the frictional resistance of the scraper and improve the scraping efficiency. As shown in Figure 11, a vertical blowing pipe 48 is fixed in the filter cartridge 44, and the blowing pipe 48 communicates with the air tank 47 through the air pipe 10, so that the air pressure can be concentrated, the blowing pressure can be improved, and the dust removal of the filter cartridge 44 itself can be improved. efficiency. The blowing pipe 48 passes through the pressure plate 481 and is inserted into the filter cartridge 44; the pressure plate 481 is sealed and fixed on the upper port of the filter cartridge 44, which can realize stable and uniform blowing and improve the blowing effect.

Example 6

A belt conveyor based on automatic dust removal and bottom cleaning in this embodiment is further improved on the basis of embodiment 5. As shown in Figure 6, the frame structure is formed by connecting a pair of cross bars 221 and vertical plates 222 to each other , which can be referred to as left and right cross bars and front and rear vertical plates respectively; the two vertical plates 222 are respectively close to the two guide baffle plates 24 to achieve the purpose of scraping the material as thoroughly as possible; the roller 223 is connected to the bottom of the vertical plate 222 . As shown in Figure 11, the upper part of the filter cartridge 44 is a circle of horizontal bosses, and a circle of ring platforms 413 is arranged on the inner wall of the box body 41. A plurality of filter cartridges 44 can be evenly arranged in the box body 41 according to needs, and the pressure plate 481 will The filter cartridges 44 are combined and then fixed on the ring platform 413, so that the filter cartridges 44 are suspended in the box body 41, the upper part of the filter cartridges 44 is sealed by the pressure plate 481, and the lower opening is facing the feeding end of the belt conveyor 1 Or the discharge end, the casing 41 top is also a sealed structure, like this, achieves the good purpose of air induction and blowing effect, to improve dust removal and dust blowing efficiency.

Example 7

A kind of belt conveyor based on automatic dust removal and bottom cleaning of the present embodiment is further improved on the basis of embodiment 6, as shown in Figures 6 and 7, it also includes a sliding bar 29; the cross bar 221 is fixedly connected There is a slide rod guide sleeve 227, after the slide rod 29 passes through the slide rod guide sleeve 227, its two ends are respectively connected with the traction rope 25 through the connector 28, and the connector 28 can directly use a hinge to be hinged with the traction rope 25; Described reciprocating scraper mechanism 22 also comprises rotating shaft one 224, axle sleeve 226, adjustment pin 228 and reinforcing rod 229, and reinforcing rod 229 can be provided with multiple in parallel; Described rotating shaft one 224 and cross bar 221 are in parallel relationship, and through strengthening Rod 229 and cross bar 221 are fixedly connected; the rotating shaft one 224 is socketed with the shaft sleeve 226, and the scraper 225 is rotationally connected with the rotating shaft one 224 through the shaft sleeve 226, that is, the scraper 225 passes through the shaft sleeve 226 along the rotating shaft one 224 For rotation, multiple shaft sleeves 226 can also be provided to make the rotation localized. The side wall surface of the sliding bar 29 is fixedly connected with an adjusting pin 292 capable of stirring the scraper 225 to rotate, and the adjusting pin 292 is arranged in parallel in a paired transverse direction to limit the toggling distance of the scraper 225; the bottom surface of the sliding bar 29 is fixedly connected There is a limit block one 291 that can limit the sliding rod 29 to pass through the slide rod guide sleeve 227. The limit block one 291 cooperates with the adjustment pin 292 to allow the scraper 225 to be adjusted in a toggle manner within a specified range. The limit block one 291 is 2, respectively left and right limit block one 291, left and right limit block one 291, left and right limit block one 291 respectively to the left and right cross bar 221 the same spacing, all are slide bar 29 The sliding distance in the left and right directions, the movement of the sliding rod 29, and the turnover and return of the scraper 225 are stirred. Vertical plate 222 bottom is fixed with scraper 225 when scraping material and presses against the stop block two 2221 of scraper 225, and stop block two 2221 cooperates with adjustment pin 292, and presses against scraper 225, prevents its rotation. The dust removal device 4 in this embodiment is only arranged above the discharge end of the belt conveyor 1 .

The upper dust removal and bottom cleaning method of the belt conveyor based on automatic dust removal and bottom cleaning in this embodiment, the steps are:

Step 1. Dust removal:

A. Adsorption: When the belt conveyor 1 is transporting materials, start the motor 46 to drive the induced draft fan 45 to generate a negative pressure state in the entire box 41, and the dust generated by the belt conveyor 1 when it is discharging at the discharge end is sucked into the box 41 and is absorbed and accumulated into larger particles by the filter film layer on the filter cartridge 44, and the gas after dust removal is discharged from the exhaust port 451 of the induced fan 45 by the induced fan 45 through the induced air pipe 43;

B, return: when belt conveyor 1 suspends conveying material, close induced draft fan 45; Open gas tank 47 and lead to the air valve that is set on the air pipe 10 of blowing pipe 48, the high-pressure gas in the gas tank 47 can pass through blowing pipe 48 pair The dust particles adsorbed by the filter cartridge 44 are blown down to the box body 41 and returned to the belt conveyor 1 or dropped to the bottom belt conveyor blanking surface 23. The upper part of the box body 41 is sealed, and the particles are relatively large, which will be caused by Falling by its own weight will not produce secondary dust pollution;

Step 2. Cleaning. At the same time as step 1, start the blanking cleaning device 2:

C. Forward scraping: Start the winch 21 in the forward direction, pull the sliding rod 29 to the left with the traction rope 25, until the left limit block 291 is pressed against the left cross bar 221, and at the same time, the upper part of the scraper 225 is pressed against the right adjustment pin 292, The lower part presses against the limit block 2 2221, starts to scrape materials, and accumulates materials on the feeding surface 23 of the belt conveyor, including the dust particles in step B, until the materials are scraped to the blanking materials set at the left end of the material guide baffle plate 24 for temporary storage Inside box 27;

D. Return of the scraper: reversely start the hoist 21, pull the sliding rod 29 to the right with the traction rope 25, until the right limit block 1 291 presses against the right cross bar 221, and at the same time, the upper part of the scraper 225 is moved by the left adjustment pin 292 Next, rotate along the rotating shaft one 224, the bottom of the scraper 225 tilts up, no longer scrapes the material, and returns to the right end of the material guide baffle 24 under the traction of the traction rope 25, and realizes the reciprocating cycle of the scraper 225;

Repeat steps C and D until the accumulated material on the belt conveyor blanking surface 23 is cleaned up.

The belt conveyor and its scraping method based on automatic dust removal and bottom cleaning in this embodiment, the first limit block 291, the adjustment pin 292 and the second limit block 2221, the three can cooperate, that is, to limit the scraping when the scraper needs to be turned over The adjustment range of the board also ensures the stability of one-way scraping, and the adjustment and scraping achieve both functions and effects.

Example 8

A belt conveyor based on automatic dust removal and bottom cleaning in this embodiment is further improved on the basis of Embodiment 7. As shown in Figure 8, a scraper groove 2251 is pre-opened on the upper part of the scraper 225 to facilitate sliding The rod 29 passes through, and the adjusting pins 292 can be symmetrically arranged in pairs on both sides of the sliding rod 29, so as to serve the purpose of dual adjustment of the scraper 225; Both are provided above the feed end and the feed end, and the induced air pipe 43 of the two can be shared, and the induced draft fan 45 also shares one, so as to reduce installation and operation costs.

The upper dust removal and bottom cleaning method of the belt conveyor based on automatic dust removal and bottom cleaning in this embodiment, the steps are:

Step 1. Dust removal:

A. Adsorption: When the belt conveyor 1 is transporting materials, start the motor 46 and drive the induced draft fan 45 to generate a negative pressure state in the two boxes 41, which is generated when the belt conveyor 1 is discharging materials at the discharge end and the feed end The dust is sucked into the respective boxes 41, and is adsorbed and accumulated by the filter membrane layer on the filter cartridge 44 to form larger particles. discharge;

B, return: when belt conveyor 1 suspends conveying material, close induced draft fan 45; The high-pressure gas in the tank 47 can blow the dust particles adsorbed by the filter cartridge 44 to the box body 41 through the blowing pipe 48 and return to the belt conveyor 1 or drop to the belt conveyor blanking surface 23 at the bottom. The box body 41 The upper part is sealed, and the larger particles will fall due to their own weight, so there will be no secondary dust pollution;

Step 2. Cleaning. At the same time as step 1, start the blanking cleaning device 2:

C. Scraper return: Start hoist 21 in the reverse direction, pull sliding rod 29 to move rightward by 60mm with traction rope 25, until right limit block 1 291 presses against right cross bar 221, and at the same time, the upper part of scraper 225 is dialed by left adjustment pin 292 When moving, the moving distance of the left adjusting pin is also 60mm, and the scraper 225 rotates along the rotating shaft one 224, and the bottom of the scraper 225 is tilted up, without scraping, and under the traction of the traction rope 25, it reaches the right end of the guide baffle plate 24,

D. Forward scraping: start the hoist 21 in the forward direction, pull the sliding rod 29 to move leftward by 60 mm with the traction rope 25, until the left limit block 291 is pressed against the left cross bar 221, that is, the left limit block 291 reaches the left cross bar. The distance is 60 mm. At the same time, the upper part of the scraper 225 is pressed against the right adjustment pin 292, and the lower part is pressed against the limit block 2221 to start scraping until it reaches the blanking temporary storage box 27 provided at the left end of the guide baffle 24 ;Realize the reciprocating cycle of the scraper 225 in the material guide baffle 24;

Repeat steps C and D until the accumulated material on the belt conveyor blanking surface 23 is cleaned up.

In the belt conveyor based on automatic dust removal and bottom cleaning in this embodiment, the upper part dust removal and the lower part cleaning cooperate to avoid dust pollution, and collect the bottom accumulated material in time. Moreover, the absorbed dust and scraped material can be returned. Belt conveying surface, environment friendly, no waste, automatic production can be realized.

The examples described in the present invention are only to describe the preferred implementation of the present invention, and are not intended to limit the concept and scope of the present invention. Variations and improvements should fall within the protection scope of the present invention.

Claims (10)

1. A belt conveyor based on automatic dedusting and bottom cleaning, characterized in that it comprises a blanking cleaning device (2) that is arranged on the belt conveyor blanking surface (23) below the belt conveyor (1) and passes through Respective abutment (3) is arranged on the dust removal device (4) above the feed end and/or discharge end of the belt conveyor (1), wherein: The blanking cleaning device (2) includes a reciprocating scraper mechanism (22) capable of reciprocating movement on the blanking surface (23) of the belt conveyor; the reciprocating scraper mechanism (22) can move the blanking surface (23) of the belt conveyor ) is scraped and sent to the single end or both ends of the belt conveyor blanking surface (23) in the length direction for blanking; The dust removal device (4) includes a box body (41) fixed on the respective support platform (3) and a negative pressure mechanism externally connected to the box body (41); the bottom of the box body (41) is opened outwards, facing Above the feeding end and/or the discharging end of the belt conveyor (1), a vertically arranged filter cartridge (44) is built into the box body (41). 2. A kind of belt conveyor based on automatic dust removal and bottom cleaning according to claim 1, characterized in that, the reciprocating scraper mechanism (22) comprises a scraper (225), and the scraper (225) is Single or two facing away from each other and fixedly connected. 3. A belt conveyor based on automatic dust removal and bottom cleaning according to claim 1, characterized in that, the scraper (225) is in the shape of a triangle or a trapezoid that opens outward. 4. A kind of belt conveyor based on automatic dust removal and bottom cleaning according to claim 1, characterized in that, the blanking cleaning device (2) also includes A material guide baffle (24) arranged vertically in parallel; the reciprocating scraper mechanism (22) scrapes and feeds accumulated material back and forth in the material guide baffle (24); The filter cartridge (44) is covered with a filter layer (49); the negative pressure mechanism is an induced fan (45), and the induced fan (45) communicates with the box body (41) through an induced air pipe (43). 5. A kind of belt conveyor based on automatic dust removal and bottom cleaning according to claim 4, characterized in that, said blanking cleaning device (2) further includes Next to the hoist (21) and the pulley mechanism (26); the reciprocating scraper mechanism (22) is respectively connected to the hoist (21) and the pulley mechanism (26) by the traction rope (25) of the reciprocating traction to realize reciprocating motion; The filter cartridge (44) is a membrane-coated filter cartridge, and the filter layer (49) is a filter membrane layer. 6. A kind of belt conveyor based on automatic dust removal and bottom cleaning according to claim 5, characterized in that, the reciprocating scraper mechanism (22) includes its two side ends respectively attached to its two side guide baffles (24) the scraper (225); the pulley mechanism (26) comprises two rotating shafts (262), a runner (263) which is socketed and fixed on the middle part of the two rotating shafts (262) and is respectively socketed and fixed on two rotating shafts (262) ) two bearings (261) at both ends, and the traction rope (25) reciprocates around the runner (263); The air induction pipe (43) communicates and is fixedly connected with the air outlet (412) on the upper part of the box body (41) through the connecting pipe (42). 7. A kind of belt conveyor based on automatic dust removal and bottom cleaning according to claim 5, characterized in that, the reciprocating scraper mechanism (22) is a frame structure, comprising a scraper ( 225); the bottom of the frame structure is close to the blanking surface (23) of the belt conveyor and is fixedly connected with a horizontally arranged roller (223); the rolling surface of the roller (223) is close to the guide baffle (24) ; Described connecting pipe (42) is the round pipe of heaven and earth. 8. A kind of belt conveyor based on automatic dust removal and bottom cleaning according to claim 7, characterized in that, the frame structure is formed by interconnecting a pair of cross bars (221) and vertical plates (222); The two vertical plates (222) are respectively close to the two guide baffle plates (24); the rollers (223) are connected to the bottom of the vertical plate (222); The dust removal device (4) also includes an air tank (47) fixed on the outer wall of the box body (41) through a bracket (411) and communicated with the inner filter cartridge (44) of the box body (41). 9. A kind of belt conveyor based on automatic dust removal and bottom cleaning according to claim 8, characterized in that, the blanking cleaning device (2) also includes a slide bar (29); the cross bar (221) The upper is fixedly connected with a sliding rod guide sleeve (227), and after the described sliding rod (29) passes through the sliding rod guide sleeve (227), its two ends are respectively connected with the traction rope (25) through a connector (28); The reciprocating scraper mechanism (22) also includes a rotating shaft one (224), an axle sleeve (226), an adjustment pin (228) and a reinforcing rod (229); the rotating shaft one (224) and the cross bar (221) are in a parallel relationship, And fixedly connected by reinforcing bar (229) and cross bar (221); described rotating shaft one (224) is socketed with axle sleeve (226), and described scraper (225) passes axle sleeve (226) and rotating shaft one (224) ) rotary connection; A vertical blowing pipe (48) is fixed inside the filter cartridge (44), and the blowing pipe (48) communicates with the gas tank (47) through the air pipe (10). 10. A kind of belt conveyor based on automatic dedusting and bottom cleaning according to claim 9, characterized in that, the side wall surface of the sliding rod (29) is fixedly connected with a scraper (225) that can be rotated. Adjusting pin (292), the bottom surface of slide bar (29) is fixedly connected with the stop block one (291) that can limit slide bar (29) to pass slide bar guide sleeve (227); Described riser (222) bottom When being fixed with scraper (225) scraping material, press against the stop block two (2221) of scraper (225) The blowing pipe (48) passes through the pressing plate (481) and is inserted into the filter cartridge (44); the pressing plate (481) is sealed and fixed on the upper port of the filter cartridge (44).