Dustproof device for mineral conveying belt

Abstract

The invention discloses an anti-dust device for a mineral conveying belt, which relates to the technical field of dust prevention of conveying equipment, and comprises a rack, a conveying belt, a pair of movable pipes, a water supply assembly and a reciprocating motion assembly, the conveying belt is installed on the rack, the movable pipes are installed on the rack in a sliding mode, a plurality of extending pipes are fixedly installed on the opposite faces of the two movable pipes, material turning rods are installed at the bottom ends of the extending pipes, the material turning rods on the two movable pipes are distributed in a staggered mode, and first spray heads are fixedly installed on the extending pipes. The water supply assembly comprises a water pump, a T-shaped pipe and two hoses, the water pump is arranged on the rack, the T-shaped pipe is connected with the water outlet end of the water pump, and the two hoses are connected with the T-shaped pipe and the movable pipe respectively; the reciprocating motion assembly is arranged corresponding to the movable pipes and can drive the two movable pipes to move oppositely or oppositely. During working, the water supply assembly supplies water to the movable pipe, the first spray head sprays water, the reciprocating motion assembly drives the movable pipe to drive the material turning rod to stir mineral aggregates, the lower-layer dry mineral aggregates are exposed and wetted by the first spray head, dust production caused by dry-wet separation due to conveying vibration is avoided, and the dustproof effect is stable and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust prevention for conveying equipment, in particular to a dust prevention device for mineral conveying belt. BACKGROUND

[0002] In the field of mineral mining and processing, conveying belt is the core equipment for realizing continuous transportation of mineral materials. The dust pollution generated during the operation of the conveying belt has been a key problem that needs to be solved in the industry. Dust not only harms the respiratory health of workers, but also may cause safety hazards such as dust explosion, and accelerates equipment wear and tear, reducing production efficiency. Therefore, dust prevention technology for conveying equipment is crucial for safe production in mines.

[0003] At present, the widely used dust prevention method for conveying equipment in the industry is water mist spraying dust suppression. The principle is to set a spraying device above the conveying belt to spray water mist onto the surface layer of the conveyed mineral materials, so as to make the upper layer of the mineral materials wet and clump, thereby inhibiting the raising of dust. This method has the characteristics of low cost and simple operation, and has been widely used in various mines.

[0004] However, the existing water mist spraying dust prevention technology has obvious defects in actual application, and it is difficult to achieve long-term and stable dust prevention effect. Specifically, during the conveying process of the mineral materials on the conveying belt, the mineral materials will produce continuous rolling and interlayer relative movement due to the influence of factors such as vibration of the conveying belt operation, rotation and vibration of the carrier roller, and change of gravity distribution of the mineral materials themselves. Due to the increased adhesion between the wet mineral particles and the increased weight, they are easy to sink downward under the action of vibration; while the dry mineral materials in the lower layer will be rolled upward and gradually exposed to the surface layer.

[0005] When the dry mineral materials are exposed, the inter-particle bonding force is weak, and under the action of air flow disturbance and vibration generated by the operation of the conveying belt, new dust is easily formed and escapes into the air, resulting in a significant decrease in dust prevention effect. Even if the amount of spraying is increased to try to improve it, the water will only stay on the surface layer of the mineral materials, and it is impossible to achieve overall wetting, which may instead cause the mineral materials to be excessively wet and clumped, blocking the conveying belt or affecting the subsequent processing process. In addition, for long-distance conveying belts, the vibration phenomenon is more obvious, and the layering and replacement of dry and wet mineral materials are more prominent, further exacerbating the problem of dust pollution.

[0006] Therefore, how to solve the problem of dry and wet separation caused by vibration of the mineral materials in water mist spraying dust prevention, and achieve overall effective wetting and continuous dust prevention of the mineral materials, has become a technical bottleneck that needs to be broken through in the field of dust prevention technology for mineral conveying equipment. SUMMARY

[0007] In view of the deficiencies of the prior art, the present application provides a dust prevention device for mineral conveying belt.

[0008] In order to achieve the above object, the present application provides the following technical scheme: a dustproof device for mineral conveying belt, comprising a conveying belt installed on a rack, a pair of movable pipes are slidingly installed on the rack, a plurality of extension pipes are fixedly installed on the opposite surfaces of the two movable pipes, a turnover rod is installed at the bottom end of each extension pipe, the plurality of turnover rods on the two movable pipes are distributed in a staggered manner, a first spray head is fixedly installed on each extension pipe;

[0009] A water feeding assembly is installed on the rack, and the liquid outlet ends of the water feeding assembly are respectively connected with the interiors of the two movable pipes;

[0010] Reciprocating motion assemblies are further installed on the rack, each movable pipe corresponds to one reciprocating motion assembly, and the two reciprocating motion assemblies can make the two movable pipes move relative to each other or move away from each other.

[0011] Preferably, the water feeding assembly comprises a water pump, a T-shaped pipe and a pair of hoses, the water pump is fixedly installed on the rack, the T-shaped pipe is fixedly installed on the water outlet end of the water pump, and the two hoses are connected with the interiors of the two movable pipes.

[0012] Preferably, the reciprocating motion assembly comprises a fixed pipe, a piston rod, a piston plate, a second communication pipe, a third valve, a fourth valve, a connecting pipe, a first communication pipe, a first valve and a second valve.

[0013] The fixed pipe is fixedly installed on the rack, the piston plate is slidingly arranged in the interior of the fixed pipe and separates the interior of the fixed pipe into two independent cavities, one end of the piston rod is fixedly connected with the piston plate, the other end of the piston rod is fixedly connected with the movable pipe, the two ends in the length direction of the second communication pipe are respectively fixedly connected with the two ends in the length direction of the fixed pipe, the third valve and the fourth valve are respectively fixedly installed at the two ends in the length direction of the second communication pipe, and the second communication pipe is connected with the T-shaped pipe through the connecting pipe.

[0014] The first communication pipe is fixedly installed on the fixed pipe, the first valve and the second valve are respectively fixedly installed at the two ends in the length direction of the first communication pipe, and a water outlet is installed on the first communication pipe.

[0015] Preferably, an annular pipe is fixedly installed on the rack, the annular pipe is arranged on one side of the movable pipe and close to the feeding end of the conveying belt, and a plurality of second spray heads are fixedly installed on the annular pipe.

[0016] The water outlets on the two first communication pipes are fixedly connected through a fourth communication pipe, and the fourth communication pipe is fixedly connected with the annular pipe.

[0017] Preferably, the inside of the fixed pipe is fixedly provided with a pair of limiting blocks, the piston plate is located between the two limiting blocks, and the connecting positions of the first and second connecting pipes with the fixed pipe are located between the limiting blocks and the end of the fixed pipe.

[0018] Preferably, the turning-over rod comprises a sleeve rod, an inner rod and a spring, the top end of the sleeve rod is fixedly connected with the extending pipe, the top end of the inner rod is inserted into the inside of the sleeve rod and is slidably connected with the sleeve rod, and the spring is fixedly arranged between the top end of the inner rod and the sleeve rod.

[0019] Preferably, the bottom end of the inner rod is rotatably provided with a roller.

[0020] Preferably, the rack is fixedly provided with a sliding rod, one end of the movable pipe is fixedly provided with a sliding ring, a plurality of balls are rotatably arranged on the inner surface of the sliding ring and are equidistantly distributed in the circumferential direction of the sliding ring, and the plurality of balls are closely attached to the outer surface of the sliding rod.

[0021] Compared with the prior art, the dustproof device for the mineral conveying belt has the following beneficial effects:

[0022] 1. The device drives the turning-over rods distributed in a staggered manner to agitate the mineral materials through the movable pipe, so that the lower dry mineral materials are fully exposed, and the first nozzle sprays water synchronously, thereby solving the problem of incomplete traditional surface humidification; and the pre-humidification structure of the feeding end annular pipe is newly added, so that a double mode of "pre-humidification + middle layer turning-over humidification" is formed, the overall humidity of the mineral materials is greatly improved, the dust generation during the conveying of the mineral materials with middle-low humidity and high concentration dust is effectively inhibited, and the dustproof efficiency is higher.

[0023] 2. The water in the water feeding assembly is used as the power source of the reciprocating motion assembly, so that no additional driving device is needed, the structure is simplified, and the energy consumption is reduced; the movable pipe slides on the sliding rod through the cooperation of the sliding ring and the balls, the frictional resistance is small, and the sliding is stable; the turning-over rod adopts the elastic structure of the sleeve rod, the inner rod and the spring, the roller can adaptively change the thickness of the mineral materials, hard contact damage to the conveying belt is avoided, the service life of the device and the conveying belt is prolonged, and the operation stability is high.

[0024] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and the content of the specification can be implemented, the following will be described in detail with the preferred embodiments of the present application and the accompanying drawings. The specific embodiments of the present application are given in detail by the following examples and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 is a structural schematic diagram of the present application;

[0027] Figure 2 is a structural schematic diagram of the side plate, slide rod, annular tube and movable tube in the present application;

[0028] Figure 3 is a structural schematic diagram of the movable tube, extension tube, piston rod, piston plate and sliding ring in the present application;

[0029] Figure 4 is a split structural schematic diagram of the sleeve rod and inner rod in the present application;

[0030] Figure 5 is a structural schematic diagram of the water delivery assembly, reciprocating assembly and annular tube in the present application;

[0031] Figure 6 is a cross-sectional structural schematic diagram of the fixed tube in the present application.

[0032] In the figure: 1, conveying belt; 2, frame; 3, side plate; 4, movable tube; 5, extension tube; 6, sleeve rod; 7, inner rod; 8, first nozzle; 9, spring; 10, roller; 11, fixed tube; 12, piston rod; 13, piston plate; 14, limit block; 15, slide rod; 16, first communication tube; 17, first valve; 18, second valve; 19, second communication tube; 20, third valve; 21, fourth valve; 22, water pump; 23, T-shaped tube; 24, hose; 25, connecting tube; 26, third communication tube; 27, fourth communication tube; 28, annular tube; 29, second nozzle; 30, sliding ring; 31, ball. DETAILED DESCRIPTION

[0033] The principles and features of the present application are described, and the examples are only used to explain the present application, and are not used to limit the scope of the present application. In the following paragraphs, the present application is described in more detail with reference to the accompanying drawings. It should be noted that the drawings are very simplified and use non-precise proportions, only for the purpose of facilitating and clearly assisting the purpose of illustrating the embodiments of the present application. Figures 1 to 6 It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0034]

[0035] ​Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "and / or" includes a set of one or more associated listed items.

[0036] Please refer to Figures 1 to 6 The present application provides a dustproof device for mineral conveying belt.

[0037] Embodiment one

[0038] The present application discloses a dustproof device for mineral conveying belt, which is suitable for the dustproof conveying of low-humidity mineral materials. The device comprises a conveying belt 1 installed on a rack 2, side plates 3 welded and fixed at both ends of the rack 2 in the width direction, slide rods 15 welded on the side plates 3, movable pipes 4 with slide rings 30 welded at one end, a plurality of equally spaced rolling balls 31 rotatably installed on the inner surface of the slide rings 30, the rolling balls 31 closely adhering to the outer surface of the slide rods 15 to realize the sliding of the movable pipes 4 on the slide rods 15. A plurality of extension pipes 5 are perpendicularly welded on the opposite surfaces of the two movable pipes 4, the extension pipes 5 are in communication with the interiors of the movable pipes 4, and a turnover rod is installed at the bottom end of each extension pipe 5, and the turnover rods on the two movable pipes 4 are distributed in a staggered manner.

[0039] The turnover rod comprises a sleeve rod 6, an inner rod 7 and a spring 9, the sleeve rod 6 is fixedly connected with the extension pipe 5 at the top end, the inner rod 7 is inserted into the interior of the sleeve rod 6 and is in sliding cooperation with the sleeve rod 6, the spring 9 is welded at both ends of the inner rod 7 top end and the inner top wall of the sleeve rod 6, and the inner rod 7 bottom end is rotatably installed with a roller 10 through a pin shaft. A first spray head 8 is also welded and fixed on the side wall of each extension pipe 5, the first spray head 8 is in communication with the interior of the extension pipe 5 and the spray head is directed to the upper surface of the conveying belt 1.

[0040] A water delivery assembly is installed on the rack 2, which comprises a water pump 22 bolted on the bottom of the rack 2, a T-shaped pipe 23 welded on the water outlet end of the water pump 22 and a pair of hoses 24, one end of each of the two hoses 24 is fixedly connected with the interface of the T-shaped pipe 23, and the other end is respectively connected with the flange at the end of each movable pipe 4.

[0041] A reciprocating motion assembly is also installed on the rack 2, each movable pipe 4 corresponds to a set of reciprocating motion assemblies, and the reciprocating motion assembly comprises a fixed pipe 11 welded on the rack 2, a piston rod 12, a piston plate 13, a second communication pipe 19, a third valve 20, a fourth valve 21, a connecting pipe 25, a first communication pipe 16, a first valve 17 and a second valve 18.

[0042] A piston plate 13 is slidably arranged inside the fixed tube 11, which separates the inside of the fixed tube 11 into two independent cavities. One end of the piston rod 12 is welded to the piston plate 13, and the other end of the piston rod 12 is welded to the side wall of the movable tube 4. The two ends of the second communication tube 19 are fixedly connected with the two ends of the fixed tube 11 and are in communication with the inside of the fixed tube 11. The third valve 20 and the fourth valve 21 are fixedly installed at the two ends of the second communication tube 19 respectively. The two second communication tubes 19 are welded in communication through the third communication tube 26. The top end of the connecting tube 25 is welded with the third communication tube 26, and the bottom end is welded in communication with the T-shaped tube 23. The first communication tube 16 is welded to the side wall of the fixed tube 11. The first valve 17 and the second valve 18 are installed at the two ends of the first communication tube 16 respectively. The water outlet is installed on the first communication tube 16.

[0043] When the embodiment works, the water pump 22 is started. Part of the water of the water pump 22 is transported to the movable tube 4 through the hose 24, and then sprayed to the surface layer of the mineral aggregate by the first spray head 8 through the extension tube 5. Another part of the water enters the second communication tube 19 through the T-shaped tube 23, the connecting tube 25 and the third communication tube 26. When the relative movement of the movable tube 4 is needed, the fourth valve 21 is opened and the third valve 20 is closed. The water enters the cavity on one side of the fixed tube 11 to push the piston plate 13 to move, and drive the two movable tubes 4 to move relatively close. In the process, the roller 10 rolls on the surface of the conveyor belt 1, and the material stirring rod stirs in the mineral aggregate to expose the lower layer of dry mineral aggregate. The first spray head 8 sprays water synchronously to wet the lower layer of mineral aggregate. When the opposite movement of the movable tube 4 is needed, the fourth valve 21 is closed and the third valve 20 is opened. The water enters the cavity on the other side of the fixed tube 11 to realize the reset of the movable tube 4.

[0044] Example Two

[0045] On the basis of example one, the pre-wetting structure at the feeding end is added, which is suitable for the conveying scene of high-concentration dust mineral aggregate. The annular tube 28 is fixedly welded to the side plate 3 and is arranged around the upper side of the feeding end of the conveyor belt 1. A plurality of second spray heads 29 are uniformly installed on the inner side wall of the annular tube 28.

[0046] The water outlets on the two first communication tubes 16 are welded in communication through the fourth communication tube 27. The fourth communication tube 27 is welded in communication with the annular tube 28 through the connecting tube.

[0047] A pair of limiting blocks 14 are further welded inside the fixed tube 11. The piston plate 13 is located between the two limiting blocks 14. The connection positions of the first communication tube 16 and the second communication tube 19 with the fixed tube 11 are located between the limiting blocks 14 and the end of the fixed tube 11.

[0048] In this embodiment, after starting the water pump 22, in addition to the humidification and turning process in Embodiment 1, when the movable pipes 4 move relative to each other, the first valve 17 is opened and the second valve 18 is closed. The water squeezed in one side of the fixed pipe 11 enters the annular pipe 28 through the first connecting pipe 16 and the fourth connecting pipe 27, and is sprayed as water mist onto the feed material at the feed end by the second nozzle 29 for pre-humidification. When the movable pipes 4 move in opposite directions, the first valve 17 is closed and the second valve 18 is opened, and the squeezed water in the other side of the fixed pipe 11 is also delivered to the annular pipe 28. Through the dual action of "pre-humidification + mid-layer turning humidification", the overall moisture content of the ore is further improved, and dust generation is completely suppressed.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A dustproof device for a mineral conveyor belt, comprising a conveyor belt (1) mounted on a frame (2), characterized in that: A pair of movable tubes (4) are slidably installed on the frame (2). Multiple extension tubes (5) are fixedly installed on the opposite surfaces of the two movable tubes (4). A turning rod is installed at the bottom of each extension tube (5). The multiple turning rods on the two movable tubes (4) are staggered. A first nozzle (8) is fixedly installed on each extension tube (5). A water delivery assembly is installed on the frame (2), and the liquid outlet of the water delivery assembly is connected to the interior of two movable pipes (4); The frame (2) is also equipped with a reciprocating motion assembly. Each movable tube (4) corresponds to a reciprocating motion assembly. The two reciprocating motion assemblies can make the two movable tubes (4) move relative to each other or move in opposite directions.

2. The dustproof device for a mineral conveyor belt according to claim 1, characterized in that: The water delivery assembly includes a water pump (22), a T-shaped pipe (23), and a hose (24). The water pump (22) is fixedly installed on the frame (2). The T-shaped pipe (23) is fixedly installed on the outlet end of the water pump (22). There is a pair of hoses (24). One end of each hose (24) is connected to the inside of the T-shaped pipe (23), and the other end of each hose (24) is connected to the inside of two movable pipes (4).

3. A dustproof device for a mineral conveyor belt according to claim 2, characterized in that: The reciprocating motion assembly includes a fixed pipe (11), a piston rod (12), a piston plate (13), a second connecting pipe (19), a third valve (20), a fourth valve (21), a connecting pipe (25), a first connecting pipe (16), a first valve (17), and a second valve (18). The fixed tube (11) is fixedly installed on the frame (2). The piston plate (13) is slidably disposed inside the fixed tube (11) and divides the inside of the fixed tube (11) into two independent cavities. One end of the piston rod (12) is fixedly connected to the piston plate (13), and the other end of the piston rod (12) is fixedly connected to the movable tube (4). The two ends of the second connecting tube (19) in the length direction are respectively fixedly connected to the two ends of the fixed tube (11) in the length direction. The second connecting tube (19) is fixedly installed at the two ends in the length direction of the third valve (20) and the fourth valve (21) respectively. The second connecting tube (19) is connected to the T-shaped tube (23) through the connecting tube (25). A first connecting pipe (16) is fixedly installed on the fixed pipe (11). A first valve (17) and a second valve (18) are fixedly installed at both ends of the first connecting pipe (16) along its length. An outlet is installed on the first connecting pipe (16).

4. A dustproof device for a mineral conveyor belt according to claim 3, characterized in that: A ring pipe (28) is fixedly installed on the frame (2). The ring pipe (28) is located on one side of the movable pipe (4) and close to the feed end of the conveyor belt (1). Multiple second nozzles (29) are fixedly installed on the ring pipe (28). The outlets on the two first connecting pipes (16) are fixedly connected by a fourth connecting pipe (27), which is fixedly connected to the annular pipe (28).

5. A dustproof device for a mineral conveyor belt according to claim 4, characterized in that: A pair of limiting blocks (14) are fixedly installed inside the fixed tube (11). The piston plate (13) is located between the two limiting blocks (14). The connection points of the first connecting tube (16) and the second connecting tube (19) with the fixed tube (11) are both located between the ends of the limiting blocks (14) and the fixed tube (11).

6. A dustproof device for a mineral conveyor belt according to claim 1, characterized in that: The material turning rod includes a sleeve rod (6), an inner rod (7), and a spring (9). The top end of the sleeve rod (6) is fixedly connected to the extension tube (5). The top end of the inner rod (7) is inserted into the inside of the sleeve rod (6) and slidably connected to the sleeve rod (6). The spring (9) is fixedly installed between the top end of the inner rod (7) and the sleeve rod (6).

7. A dustproof device for a mineral conveyor belt according to claim 6, characterized in that: A roller (10) is rotatably mounted on the bottom end of the inner rod (7).

8. A dustproof device for a mineral conveyor belt according to claim 1, characterized in that: A slide rod (15) is fixedly installed on the frame (2), and a slip ring (30) is fixedly installed on one end of the movable tube (4). Multiple balls (31) are rotatably installed on the inner surface of the slip ring (30). The multiple balls (31) are evenly distributed in the circumferential direction of the slip ring (30), and the multiple balls (31) are tightly attached to the outer surface of the slide rod (15).

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