Totally-enclosed belt conveyor guide chute

Abstract

The fully-closed belt conveyor guide chute comprises a guide chute body, an arched top plate, lateral dustproof mechanisms, a choke curtain and a tail sealing device, the arched top plate is arranged above the guide chute for connection to prevent dust from overflowing from the top, the lateral dustproof mechanisms are located on the two sides of the guide chute body to prevent dust from overflowing from the two sides, and the choke curtain is located on the tail sealing device. The air blocking curtains are arranged above the guide chute body in parallel, a plurality of rubber strips are arranged at the lower ends of the air blocking curtains, gaps are formed between the rubber strips so that airflow can pass through, the gaps of the rubber strips between every two adjacent air blocking curtains are arranged in a staggered mode so that the airflow can pass through in an S shape, and the tail sealing device is located at the tail end of the guide chute body. And dust is prevented from penetrating through the guide chute body from the tail part. Due to the fact that the air blocking curtain is arranged, and the rubber strips on the air blocking curtain form the S-shaped channel, when air penetrates through the head and the tail of the conveyor, under the action of the air blocking curtain, energy of the air can be effectively absorbed, and dust can adhere to the air blocking curtain.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyors, in particular to a fully enclosed belt conveyor feed chute. Background Art

[0002] Belt conveyors are often used for the transportation of mining materials, and the application environment is accompanied by a large amount of dust, crushed slag, etc. This requires very high sealing performance for the conveyor. Otherwise, dust, crushed slag, etc. entering positions such as bearings, motors, and electric controls are extremely likely to cause equipment damage and have a great impact on the equipment life. In this regard, the utility model patent with the patent number 201220162604.2 and the name of "a fully sealed belt conveyor" adopts the following solution: a sealing groove device is provided directly above the belt conveyor. The sealing groove device includes a sealing groove cover plate and a sealing groove side plate. A sealing groove bracket for supporting the sealing groove device is provided on the sealing groove device, and the sealing groove bracket is fixed on the frame of the belt conveyor. The sealing groove side plate extends towards the conveyor belt of the belt conveyor, and a rubber plate is connected to the extending end of the sealing groove side plate. The rubber plate is in contact with the conveyor belt of the belt conveyor, so that a closed space is formed between the sealing groove device and the conveyor belt. At the same time, a feeding port is provided on the sealing groove cover plate. The sealing groove device is installed on the frame of the belt conveyor through the sealing groove bracket; a rubber plate is added between the sealing groove and the conveyor belt to contact the conveyor belt, so that a closed space is formed between the sealing groove and the conveyor belt, and a feeding port is provided at the feeding position.

[0003] This solution has a good sealing effect on both sides and above the conveyor, but the head and tail sides of the conveyor are open. When wind passes through the conveyor from the head and tail sides, a large amount of dust is extremely likely to be ejected from the other side. Summary of the Invention

[0004] In view of this, it is necessary to provide a fully enclosed belt conveyor feed chute that can effectively prevent dust ejection in multiple directions.

[0005] A fully enclosed belt conveyor feed chute includes a feed chute body, an arched top plate, a lateral dust prevention mechanism, a wind blocking curtain, and a tail sealing device. The arched top plate is connected above the feed chute to prevent dust from overflowing from the top. The lateral dust prevention mechanism is located on both sides of the feed chute body to prevent dust from overflowing from both sides. The wind blocking curtain is arranged parallel above the feed chute body. A plurality of rubber strips are provided at the lower end of the wind blocking curtain, and gaps are provided between the rubber strips to allow air flow to pass through. The gaps between the rubber strips of adjacent wind blocking curtains are arranged staggeredly to allow the air flow to pass through in an S shape. The tail sealing device is located at the end of the feed chute body to prevent dust from passing through the feed chute body from the tail.

[0006] Preferably, the lateral dust-proof mechanism includes a connecting frame, an inner flexible anti-overflow skirt, and an outer rigid dust-proof plate. The connecting frames are arranged in parallel on both sides of the material guiding trough body. The upper end of the inner flexible anti-overflow skirt is fixedly connected to the connecting frame, and the distance between the lower end of the inner flexible anti-overflow skirt and the bottom of the material guiding trough body is less than 5 cm. The lower end of the outer rigid dust-proof plate is fixedly connected to the outside of the idler bracket of the material guiding trough body, and the upper end of the outer rigid dust-proof plate is fixedly connected to the connecting frame. The connecting frame is also fixedly connected to the arched top plate.

[0007] Preferably, a cross arm is provided between the two connecting frames, and threaded holes are provided on the cross arm. Correspondingly, mounting holes are provided at the upper end of the air-blocking curtain, and the air-blocking curtain is installed on the cross arm through bolts.

[0008] Preferably, adjusting plates are provided on the outside of the connecting frames, and a number of threaded holes are provided on the adjusting plates. Correspondingly, the inner flexible anti-overflow skirt is provided with matching threaded holes, and the inner flexible anti-overflow skirt and the adjusting plates are connected by bolts and can be lifted and lowered.

[0009] Preferably, the tail sealing device includes a sealing box body and a liftable plug plate. The front end of the sealing box body is open and connected to the material guiding trough body, and a liftable plug plate is provided at the rear end of the sealing box body. When discharging ash, the liftable plug plate is opened, and when the material guiding trough is working, the liftable plug plate is closed. A discharge port is provided at the bottom of the sealing box body, and the material on the material guiding trough body is unloaded from the discharge port.

[0010] Beneficial effects: By setting the air-blocking curtain in the present utility model, the rubber strips on the air-blocking curtain form an S-shaped channel. When the wind passes through the head and tail of the conveyor, under the action of the air-blocking curtain, the energy of the wind can be effectively absorbed, and the air-blocking curtain can adhere to dust. During the vibration process of the conveyor, the excessive dust on the air-blocking curtain will be shaken off onto the material guiding trough body, thereby reducing the dust during transportation. By setting the tail sealing device in the present utility model, the wind entering the conveyor from the tail direction can be further prevented. In addition, protective devices are provided on the side and top of the entire material guiding trough, so as to prevent dust overflow in all directions. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the fully enclosed belt conveyor material guiding trough of the present utility model.

[0012] Figure 2 It is a front view of the fully enclosed belt conveyor material guiding trough of the present utility model.

[0013] Figure 3 It is a partial schematic structural diagram of the fully enclosed belt conveyor material guiding trough of the present utility model.

[0014] In the figure: fully enclosed belt conveyor chute 10, chute body 20, arched roof 30, lateral dust-proof mechanism 40, connecting frame 401, inner flexible anti-overflow skirt 402, outer rigid dust-proof plate 403, wind-blocking curtain 50, rubber strip 501, tail sealing device 60. Detailed implementation manners

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Please refer to Figures 1 to 3 , a fully enclosed belt conveyor chute 10 includes a chute body 20, an arched roof 30, a lateral dust-proof mechanism 4040, a wind-blocking curtain 50, and a tail sealing device 60. An arched roof 30 is connected above the chute to prevent dust from overflowing from the top. The lateral dust-proof mechanism 4040 is located on both sides of the chute body 20 to prevent dust from overflowing from both sides. The wind-blocking curtain 50 is arranged in parallel above the chute body 20. There are multiple rubber strips 501 at the lower end of the wind-blocking curtain 50, and there are gaps between the rubber strips 501 to allow air flow. The gaps between the rubber strips 501 of adjacent wind-blocking curtains 50 are arranged staggeredly to allow the air flow to pass through in an S shape. The tail sealing device 60 is located at the end of the chute body 20 to prevent dust from passing through the chute body 20 from the tail.

[0017] The function of the chute body 20 of the present utility model is to convey materials. Coal, ore, etc. enter the chute body 20 from the head end of the chute body 20 and are output from the tail end of the chute body 20. The chute body 20 includes idlers, idler frames, and conveyor belts. The upper end of the chute body 20 is trapezoidal in reverse. The idlers are arranged obliquely, which has the functions of reducing friction, gathering materials, and supporting.

[0018] The arched roof 30 is used to prevent dust from escaping from the top. Since there are many falling objects underground, the arched structure has good compressive resistance. The arched roof 30 is a conventional steel structure. Generally, for the convenience of disassembly, a flange edge is provided at the edge of the arched roof 30 and is fixed to adjacent components by bolts.

[0019] The lateral dust-proof mechanism 4040 is used to prevent dust from escaping from the side and can also prevent wind from entering the chute body 20 from the side. During the transportation of materials, a large impact force will be generated on the side. Over time, problems such as corrosion and deformation are likely to occur on the side.

[0020] In a preferred embodiment, the lateral dust-proof mechanism 4040 includes a connecting frame 401, an inner flexible anti-overflow skirt 402, and an outer rigid dust-proof plate 403. The connecting frames 401 are arranged in parallel on both sides of the material guiding trough body 20. The upper end of the inner flexible anti-overflow skirt 402 is fixedly connected to the connecting frame 401. The distance between the lower end of the inner flexible anti-overflow skirt 402 and the bottom of the material guiding trough body 20 is less than 5 cm. The lower end of the outer rigid dust-proof plate 403 is fixedly connected to the outside of the idler bracket of the material guiding trough body 20, and the upper end of the outer rigid dust-proof plate 403 is fixedly connected to the connecting frame 401. The connecting frame 401 is also fixedly connected to the arched top plate 30.

[0021] The inner flexible anti-overflow skirt 402 helps to reduce the lateral impact of the material. At the same time, the flexible structure has a longer service life. However, the inner flexible anti-overflow skirt 402 is located directly above the conveyor belt, and the material on the conveyor belt is likely to cause wear to the inner flexible anti-overflow skirt 402. To reduce wear, the distance between the lower end of the inner flexible anti-overflow skirt 402 and the bottom of the material guiding trough body 20 is less than 5 cm. Nevertheless, during long-term use, the gap between the lower end of the inner flexible anti-overflow skirt 402 and the bottom of the material guiding trough will still become wider due to wear. To achieve a better dust-proof effect,

[0022] Further, adjustment plates are provided on the outside of the connecting frames 401. The adjustment plates are provided with a number of threaded holes. Correspondingly, the inner flexible anti-overflow skirt 402 is provided with matching threaded holes. The inner flexible anti-overflow skirt 402 and the adjustment plates are connected by bolts and can be lifted and lowered. By turning the bolts, the height of the anti-overflow skirt can be finely adjusted.

[0023] The outer rigid dust-proof plate 403 is used to prevent wind from entering from the side, improve the lateral dust-proof effect, and also prevent the dust on the conveyor belt above the idler from escaping to the outside. And to improve the buffering ability of the inner flexible anti-overflow skirt 402, the outer rigid dust-proof plate 403 is V-shaped. When the material impacts the inner flexible anti-overflow skirt 402, the impact can be slowed down by using the gap between the inner flexible anti-overflow skirt 402 and the outer rigid dust-proof plate 403.

[0024] The wind-blocking curtain 50 is used to prevent wind from entering the material guiding trough from both ends of the conveyor. The wind-blocking curtain 50 needs to be suspended above the material guiding trough body 20. Therefore, further, a cross arm is provided between the two connecting frames 401. The cross arm is provided with threaded holes. Correspondingly, the upper end of the wind-blocking curtain 50 is provided with mounting holes. The wind-blocking curtain 50 is installed on the cross arm by bolts.

[0025] The tail sealing device 60 is used to block wind from entering the material guiding trough from the tail, and also prevent dust from escaping from the tail.

[0026] In a preferred embodiment, the tail sealing device 60 includes a sealing box body and a liftable plug plate 601. The front end of the sealing box body is open and connected to the material guiding trough body 20. A liftable plug plate 601 is provided at the rear end of the sealing box body. When discharging ash, the liftable plug plate 601 is opened. When the material guiding trough is working, the liftable plug plate 601 is closed. A discharge port is provided at the bottom of the sealing box body, and the material on the material guiding trough body 20 is unloaded from the discharge port.

[0027] Of course, in a simple device, the sealing box body can also be omitted, and the tail can be directly installed with a liftable plug plate 601.

[0028] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A fully enclosed belt conveyor guide trough, characterized in that: It includes a material guide trough body, an arched top plate, a lateral dust-proof mechanism, an air-blocking curtain, and a tail sealing device. An arched top plate is arranged above the material guide trough to prevent dust from overflowing from the top. The lateral dust-proof mechanism is located on both sides of the material guide trough body to prevent dust from overflowing from both sides. The air-blocking curtains are arranged in parallel above the material guide trough body. A plurality of rubber strips are arranged at the lower end of the air-blocking curtains. Gaps are arranged between the rubber strips to allow airflow to pass through. The gaps between the rubber strips between two adjacent air-blocking curtains are staggered to allow airflow to pass through in an S shape. The tail sealing device is located at the end of the material guide trough body to prevent dust from passing through the material guide trough body from the tail.

2. The fully enclosed belt conveyor guide trough according to claim 1, characterized in that: The lateral dust-proof mechanism includes a connecting frame, an inner flexible anti-overflow skirt, and an outer rigid dust-proof plate. The connecting frame is arranged in parallel on both sides of the material guide trough body. The upper end of the inner flexible anti-overflow skirt is fixedly connected to the connecting frame, and the distance between the lower end of the inner flexible anti-overflow skirt and the bottom of the material guide trough body is less than 5 cm. The lower end of the outer rigid dust-proof plate is fixedly connected to the outer side of the roller frame of the material guide trough body, and the upper end of the outer rigid dust-proof plate is fixedly connected to the connecting frame, and the connecting frame is also fixedly connected to the arched top plate.

3. The fully enclosed belt conveyor guide trough according to claim 2, characterized in that: A cross arm is arranged between the two connecting frames, and a threaded hole is arranged on the cross arm. Correspondingly, a mounting hole is arranged at the upper end of the wind blocking curtain, and the wind blocking curtain is mounted on the cross arm by bolts.

4. The fully enclosed belt conveyor guide trough according to claim 3, characterized in that: An adjustment plate is provided on the outer side of the connecting frame, and a plurality of threaded holes are provided on the adjustment plate. Correspondingly, the inner flexible anti-overflow skirt is provided with matching threaded holes. The inner flexible anti-overflow skirt is connected to the adjustment plate by bolts and can be lifted and lowered.

5. The fully enclosed belt conveyor guide trough according to claim 1, characterized in that: The tail sealing device includes a sealing box body and a liftable plug plate. The front end of the sealing box body is open and connected to the material guide trough body. The rear end of the sealing box body is provided with a liftable plug plate. When unloading dust, the liftable plug plate is opened. When the material guide trough is working, the liftable plug plate is closed. The bottom of the sealing box body is provided with a discharge port, and the material on the material guide trough body is discharged from the discharge port.

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