Coal dust suppression system for coal conveying belt

Abstract

The invention discloses a coal dust suppression system for a coal conveying belt in the technical field of thermal power plants, which comprises a lower conveying belt and an upper conveying part, the lower conveying belt and the upper conveying part are arranged in parallel up and down, coal passes between the upper conveying part and the lower conveying belt under the action of the lower conveying belt, and a dust collection device is arranged in the upper conveying part. The dust collection equipment can suck coal dust into the upper conveying piece, side dustproof pieces are arranged on the two sides of the lower conveying belt and the two sides of the upper conveying piece correspondingly, each side dustproof piece comprises side blocking cloth, one end of each side blocking cloth is fixedly connected with the side wall of the lower conveying belt, and the other end of each side blocking cloth is fixedly connected with the side wall of the upper conveying piece through a winding mechanism; the lower end of the mounting frame is fixedly connected with the lower conveying belt, the upper end of the mounting frame is connected with the upper conveying piece, and the mounting frame can adjust the height of the upper conveying piece. And the equipment can adapt to coal transportation of different magnitudes.

Description

Technical Field

[0001] This invention relates to the field of thermal power plant technology, specifically to a coal dust suppression system for coal conveyor belts. Background Technology

[0002] Dust pollution is easily generated when coal is transported by conveyor belts in thermal power plants. In order to reduce dust pollution, thermal power plants often need to install dust suppression systems. Existing dust suppression systems are divided into dry fog dust suppression systems, chemical dust suppression systems, and airflow buffer dust collection systems.

[0003] The dust suppression systems mentioned above all require the use of suitable physical dust control equipment to achieve better results. However, conventional physical dust control equipment is mostly dust covers that are not easily deformable or adjustable. These dust covers are placed over the surface of the conveyor belt to suppress dust overflow. The volume and size of the dust covers are difficult to adjust. When the coal transport volume is too high, dust covers that are too small cannot transport large volumes of coal, while dust covers that are too large have high manufacturing costs.

[0004] Based on this, the present invention designs a coal dust suppression system for coal conveyor belts to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a coal dust suppression system for a coal conveyor belt, which suppresses dust diffusion through the action of an upper conveyor and side baffles. The height of the upper conveyor and the spread of the side baffles are adjustable, so that the equipment can be adapted to different volumes of coal transportation without affecting the cost.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A coal conveyor belt dust suppression system includes a lower conveyor belt and an upper conveyor component, which are arranged parallel to each other vertically. Coal passes between the upper and lower conveyor belts under the action of the lower conveyor belt. A dust collection device is installed inside the upper conveyor component to suck coal dust into the upper conveyor component. Side dustproof components are provided on both sides of the lower conveyor belt and the upper conveyor component. The side dustproof components include: Side baffle cloth, one end of which is fixedly connected to the side wall of the lower conveyor belt, and the other end of which is fixedly connected to the side wall of the upper conveyor through a winding mechanism; The mounting frame has its lower end fixedly connected to the lower conveyor belt and its upper end connected to the upper conveyor component. The mounting frame is capable of adjusting the height of the upper conveyor component.

[0007] Preferably, the mounting frame includes a lower support frame and a side connecting frame. The lower support frame is fixedly mounted with side connecting frames at both ends. Telescopic rods are symmetrically mounted on the side connecting frames. Support plates are symmetrically mounted on the upper surface of the lower support frame.

[0008] Preferably, both the lower conveyor belt and the upper conveyor are composed of two sets of guide rollers and a connecting belt. The guide rollers are supported at both ends of the connecting belt, and both ends of the guide rollers are fixedly installed with connecting ends.

[0009] Preferably, upper connecting plates are provided on both sides of the lower conveyor belt, and lower connecting plates are provided on both sides of the upper conveyor. The connecting end is rotatably connected to the upper connecting plate and the lower connecting plate. An upper connecting shaft is rotatably mounted on the upper connecting plate, and a lower connecting shaft is fixedly mounted on the lower connecting plate. The lower end of the side baffle is fixedly connected to the lower connecting shaft, and the upper end is wrapped around the upper connecting shaft.

[0010] Preferably, the vacuuming device includes an internal suction pump and an external suction pump. Multiple sets of adsorption elements are fixedly installed inside the upper transmission component. The lower end of each adsorption element extends out from the lower surface of the upper transmission component. An inlet pipe is provided inside the upper transmission component at a position corresponding to the adjacent adsorption elements. The portion of the inlet pipe inside the upper transmission component has multiple sets of sieve holes, and one end extends out of the upper transmission component. Side sealing plates are fixedly installed on both sides of the upper transmission component.

[0011] Preferably, a rotary motor is fixedly installed on the lower connecting plate, and the output end of the rotary motor is fixedly connected to the connecting end. The rotary motor can drive the guide rollers at both ends of the lower conveyor belt to rotate.

[0012] Preferably, each of the adsorption components is equipped with an internal suction pump, which can adsorb the coal ash between the lower conveyor belt and the upper conveyor component into the upper conveyor component through the adsorption component. One end of the inlet pipe is equipped with an external suction pump, which can draw the coal ash inside the upper conveyor component to the outside through the inlet pipe and the screen holes.

[0013] A method for suppressing coal dust on a coal conveyor belt includes the following steps: Step 1: Install the lower conveyor belt and the upper conveyor component on the mounting frame respectively, with the side baffles on both sides of the lower conveyor belt and the upper conveyor component to limit the overflow of coal ash; Step 2: Coal enters the upper surface of the lower conveyor belt, and is transported by the rotation of the lower conveyor belt; Step 3: During transportation, the adsorption component adsorbs the coal ash into the interior of the upper conveyor. Step 4: Then, the coal ash in the upper conveyor is adsorbed into the inlet pipe by the action of the inlet pipe; Step 5: The telescopic rod can adjust the height of the upper conveyor, thereby adjusting the distance between the upper conveyor and the lower conveyor belt, and thus controlling the average amount of coal transported.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, coal is transported by a lower conveyor belt, while an upper conveyor and side shields form a coal dust shield to drive a traditional physical protective cover. The upper conveyor shields the coal above the cover, while the side shields shield the coal on both sides. When the amount of coal transported changes, the distance between the upper conveyor and the lower conveyor belt can be adjusted. When the distance between the upper conveyor and the lower conveyor belt increases, the side shields extend accordingly, allowing the equipment to adapt to the transport of large volumes of coal without increasing the amount of raw materials required or the cost.

[0015] 2. In this invention, the dust collection device is located inside the upper conveyor. The dust collection device absorbs dust through the upper conveyor. Since the height of the upper conveyor can be adjusted, the adsorption device can always adhere to the surface of the coal being transported on the upper conveyor belt, thereby absorbing the dust in a timely manner, limiting the spread of dust, and avoiding the situation where a large dust cover is used for transporting small volumes of coal, resulting in the adsorption device being far from the coal surface and the dust spreading more easily. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front view structure of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a schematic diagram of the side dustproof component structure of the present invention; Figure 4 This is a schematic diagram of the structure of the transmission component of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the structure of the transmission component of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the mounting bracket in this invention; Figure 7 This is a diagram of the dust suppression method of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Lower conveyor belt; 2. Upper conveyor component; 3. Lower support frame; 301. Support plate; 4. Side connecting frame; 5. Telescopic rod; 6. Side sealing plate; 7. Upper connecting plate; 8. Lower connecting plate; 9. Upper connecting shaft; 10. Lower connecting shaft; 11. Inlet pipe; 12. Connecting end; 13. Guide roller; 14. Screen hole; 15. Adsorption component; 16. Side baffle cloth. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-7 The present invention provides a technical solution: A coal conveyor belt dust suppression system includes a lower conveyor belt 1 and an upper conveyor component 2, which are arranged parallel to each other vertically. Coal passes between the upper conveyor component 2 and the lower conveyor belt 1 under the action of the lower conveyor belt 1. A dust collection device is installed inside the upper conveyor component 2 to suck coal dust into the upper conveyor component 2. Side dustproof components are provided on both sides of the lower conveyor belt 1 and the upper conveyor component 2. The side dustproof components include: Side baffle 16, one end of which is fixedly connected to the side wall of the lower conveyor belt 1, and the other end is fixedly connected to the side wall of the upper conveyor 2 through a winding mechanism; The mounting frame is fixedly connected at its lower end to the lower conveyor belt 1 and at its upper end to the upper conveyor component 2. The mounting frame can adjust the height of the upper conveyor component 2.

[0021] In this invention, coal is transported via a lower conveyor belt 1, while an upper conveyor 2 and side baffles 16 form a dust shield, driving a traditional physical protective cover. The upper conveyor 2 shields the coal above the lower conveyor belt, while the side baffles 16 shield the coal on both sides. Changes in the amount of coal transported can be achieved by adjusting the distance between the upper conveyor 2 and the lower conveyor belt 1. As the distance between the upper conveyor 2 and the lower conveyor belt 1 increases, the side baffles 16 extend accordingly, allowing the equipment to adapt to large-volume coal transport without increasing raw material requirements or costs. In this invention, the dust collection device is located inside the upper conveyor 2. The dust collection device absorbs dust through the upper conveyor 2. Because the height of the upper conveyor 2 is adjustable, the dust collection device can always adhere to the surface of the coal transported on the upper conveyor belt, thereby timely absorbing dust and limiting dust diffusion. This avoids the situation where a large dust cover is used for transporting small volumes of coal, resulting in a greater distance between the dust collection device and the coal surface, making dust more easily dispersed.

[0022] The mounting frame includes a lower support frame 3 and side connecting frames 4. Side connecting frames 4 are fixedly mounted at both ends of the lower support frame 3. Telescopic rods 5 are symmetrically mounted on the side connecting frames 4, and support plates 301 are symmetrically mounted on the upper surface of the lower support frame 3. In this invention, the lower conveyor belt 1 is installed above the lower support frame 3, while the upper conveyor component 2 is installed above the side connecting frames 4. The free end of the telescopic rod 5 is fixedly connected to the upper connecting plate 7. The telescopic rod 5 drives the upper connecting plate 7 to move up and down, thereby adjusting the height of the upper conveyor component 2.

[0023] Both the lower conveyor belt 1 and the upper conveyor 2 consist of two sets of guide rollers 13 and a connecting belt. The guide rollers 13 are supported at both ends of the connecting belt, and connecting ends 12 are fixedly installed at both ends of the guide rollers 13. In this invention, the rotation of the guide rollers 13 at both ends of the lower conveyor belt 1 drives the lower conveyor belt 1 to rotate, thereby achieving the purpose of transporting coal.

[0024] In this invention, upper connecting plates 7 are provided on both sides of the lower conveyor belt 1, and lower connecting plates 8 are provided on both sides of the upper conveyor component 2. The connecting end 12 is rotatably connected to the upper connecting plates 7 and the lower connecting plates 8. An upper connecting shaft 9 is rotatably mounted on the upper connecting plate 7, and a lower connecting shaft 10 is fixedly mounted on the lower connecting plate 8. The lower end of the side baffle 16 is fixedly connected to the lower connecting shaft 10, and the upper end is wrapped around the upper connecting shaft 9. In this invention, the upper connecting plate 7 moves upward and pulls the upper connecting shaft 9 to rotate, causing the side baffle 16 wrapped around the upper connecting shaft 9 to extend, ensuring that even when the distance between the upper conveyor component 2 and the lower conveyor belt 1 increases, the side baffle 16 can still cover both sides of the upper conveyor component 2 and the lower conveyor belt 1.

[0025] The dust collection device includes an internal suction pump and an external suction pump. Multiple sets of adsorption elements 15 are fixedly installed inside the upper transmission component 2. The lower ends of the adsorption elements 15 extend from the lower surface of the upper transmission component 2. An inlet pipe 11 is provided inside the upper transmission component 2 at positions corresponding to adjacent adsorption elements 15. The portion of the inlet pipe 11 inside the upper transmission component 2 has multiple sets of sieve holes 14, and one end extends outward from the upper transmission component 2. Side sealing plates 17 are fixedly installed on both sides of the upper transmission component 2. In this invention, the side sealing plates 17 form a sealed space inside the upper transmission component 2. Under the action of the internal suction pump, the adsorption elements 15 draw dust into the upper transmission component 2, while the external suction pump causes the dust inside the upper transmission component 2 to enter the inlet pipe 11 through the sieve holes 14.

[0026] A rotary motor is fixedly mounted on the lower connecting plate 8, and the output end of the rotary motor is fixedly connected to the connecting end 12. The rotary motor can drive the guide rollers 13 at both ends of the lower conveyor belt 1 to rotate. In this invention, the rotary motor drives the guide rollers 13 to rotate, and the rotation of the guide rollers 13 drives the lower conveyor belt 1 to run.

[0027] Each adsorption component 15 is equipped with an internal suction pump, which can adsorb the coal ash between the lower conveyor belt 1 and the upper conveyor 2 into the upper conveyor 2 through the adsorption component 15. One end of the inlet pipe 11 is equipped with an external suction pump, which can draw the coal ash inside the upper conveyor 2 to the outside through the inlet pipe 11 and the screen hole 14.

[0028] A method for suppressing coal dust on a coal conveyor belt includes the following steps: Step 1: Install the lower conveyor belt 1 and the upper conveyor component 2 on the mounting frame respectively, with the side baffle 16 positioned on both sides of the lower conveyor belt 1 and the upper conveyor component 2 to limit the overflow of coal ash; Step 2: Coal enters the upper surface of the lower conveyor belt 1 and is transported by the rotation of the lower conveyor belt 1; Step 3: During transportation, the adsorption component 15 adsorbs the coal ash into the upper conveyor component 2; Step 4: Then, the coal ash in the upper conveyor 2 is adsorbed into the inlet pipe 11 by the action of the inlet pipe 11; Step 5: The telescopic rod 5 can adjust the height of the upper conveyor 2, thereby adjusting the distance between the upper conveyor 2 and the lower conveyor belt 1, and thus controlling the average amount of coal transported.

Claims

1. A coal dust suppression system for a coal conveyor belt, comprising a lower conveyor belt (1) and an upper conveyor (2), characterized in that: The lower conveyor belt (1) and the upper conveyor (2) are arranged parallel to each other vertically. Coal passes between the upper conveyor (2) and the lower conveyor belt (1) under the action of the lower conveyor belt (1). A dust collection device is installed inside the upper conveyor (2), which can suck coal dust into the upper conveyor (2). Side dustproof components are provided on both sides of the lower conveyor belt (1) and the upper conveyor (2). The side dustproof components include: Side baffle (16), one end of which is fixedly connected to the side wall of the lower conveyor belt (1), and the other end is fixedly connected to the side wall of the upper conveyor (2) through a winding mechanism; The mounting frame is fixedly connected at its lower end to the lower conveyor belt (1) and at its upper end to the upper conveyor (2). The mounting frame is capable of adjusting the height of the upper conveyor (2).

2. The coal dust suppression system for a coal conveyor belt according to claim 1, characterized in that: The mounting frame includes a lower support frame (3) and a side connecting frame (4). The lower support frame (3) is fixedly mounted with side connecting frames (4) at both ends. Telescopic rods (5) are symmetrically mounted on the side connecting frames (4). Support plates (301) are symmetrically mounted on the upper surface of the lower support frame (3).

3. A coal dust suppression system for a coal conveyor belt according to claim 1, characterized in that: The lower conveyor belt (1) and the upper conveyor (2) each consist of two sets of guide rollers (13) and a sleeve belt. The guide rollers (13) are supported at both ends of the sleeve belt, and both ends of the guide rollers (13) are fixedly installed with connecting ends (12).

4. A coal dust suppression system for a coal conveyor belt according to claim 3, characterized in that: The lower conveyor belt (1) is provided with upper connecting plates (7) on both sides, and the upper conveyor (2) is provided with lower connecting plates (8) on both sides. The connecting end (12) is rotatably connected to the upper connecting plate (7) and the lower connecting plate (8). An upper connecting shaft (9) is rotatably installed on the upper connecting plate (7), and a lower connecting shaft (10) is fixedly installed on the lower connecting plate (8). The lower end of the side baffle (16) is fixedly connected to the lower connecting shaft (10), and the upper end is wrapped around the upper connecting shaft (9).

5. A coal dust suppression system for a coal conveyor belt according to claim 1, characterized in that: The vacuuming device includes an internal suction pump and an external suction pump. Multiple sets of adsorption elements (15) are fixedly installed inside the upper transmission component (2). The lower end of the adsorption element (15) is extended from the lower surface of the upper transmission component (2). An inlet pipe (11) is provided in the upper transmission component (2) at a position corresponding to the adjacent adsorption elements (15). Multiple sets of sieve holes (14) are opened in the part of the inlet pipe (11) inside the upper transmission component (2), and one end is extended to the outside of the upper transmission component (2). Side sealing plates (17) are fixedly installed on both sides of the upper transmission component (2).

6. A coal dust suppression system for a coal conveyor belt according to claim 4, characterized in that: A rotating motor is fixedly installed on the lower connecting plate (8). The output end of the rotating motor is fixedly connected to the connecting end (12). The rotating motor can drive the guide rollers (13) at both ends of the lower conveyor belt (1) to rotate.

7. A coal dust suppression system for a coal conveyor belt according to claim 5, characterized in that: Each of the adsorption components (15) is equipped with an internal suction pump. The internal suction pump can adsorb the coal ash between the lower conveyor belt (1) and the upper conveyor component (2) into the upper conveyor component (2) through the adsorption component (15). One end of the inlet pipe (11) is equipped with an external suction pump. The external suction pump can draw the coal ash inside the upper conveyor component (2) to the outside through the inlet pipe (11) and the sieve hole (14).

8. A method for suppressing coal dust on a coal conveyor belt, applicable to any coal conveyor belt dust suppression system according to any of claims 1-7, characterized in that, Including the following steps: Step 1: Install the lower conveyor belt (1) and the upper conveyor (2) on the mounting frame respectively, and place the side baffle (16) on both sides of the lower conveyor belt (1) and the upper conveyor (2) to restrict the overflow of coal ash; Step 2: Coal enters the upper surface of the lower conveyor belt (1) and is transported by the rotation of the lower conveyor belt (1); Step 3: During transportation, the adsorption component (15) adsorbs the coal ash into the upper conveyor component (2); Step 4: Then, the coal ash in the upper conveyor (2) is adsorbed into the inlet pipe (11) by the action of the inlet pipe (11); Step 5: The telescopic rod (5) can adjust the height of the upper conveyor (2), thereby adjusting the distance between the upper conveyor (2) and the lower conveyor belt (1), and thus controlling the average amount of coal transported.

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