Sealing systems for belt conveyors

Abstract

The present invention discloses a sealing system for a belt conveyor, including a conveyor belt, a guide trough side plate, a clamp, a pressure plate mechanism, and an anti-overflow device; the lower end of the anti-overflow device is against the conveyor belt, the upper part of the anti-overflow device is connected to the clamp, and the clamp is locked on the guide trough side plate through the pressure plate mechanism. Since the bottom surface of the anti-overflow skirt sealing part of the present invention is an inclined surface, a first seal is formed, and the inclined surface can be against the conveyor belt to form a surface seal, thereby increasing the sealing area. The upper end of the sealing part has a convex strip for sealing and protruding outward, and the convex strip can be against the conveyor belt to form a second seal, thereby improving the sealing effect and reliability.

Description

Technical Field

[0001] The invention relates to a conveying device, in particular to a sealing system of a belt conveyor. Background Art

[0002] During the conveying process of coal on the belt conveyor, only one or two layers of rubber on both sides of the guide trough cannot be completely sealed, and a single rubber material cannot completely seal the leakage of various materials of different properties. Therefore, the industry needs to design a belt conveyor guide sealing device with good sealing effect. Summary of the invention

[0003] The object of the present invention is to provide a sealing system for a belt conveyor with good sealing effect.

[0004] To achieve the above purpose, the technical solution of the present invention is:

[0005] The present invention discloses a sealing system for a belt conveyor device, comprising a belt conveyor belt, a guide trough side plate, a clamp, a pressure plate mechanism, and an anti-overflow device; the lower end of the anti-overflow device leans against the belt conveyor belt, the upper part of the anti-overflow device is connected to the clamp, and the clamp is locked on the guide trough side plate through the pressure plate mechanism; the anti-overflow device comprises an anti-overflow skirt plate and a liquid replenishing pipe; the upper part of the anti-overflow skirt plate is a fixed part connected to the clamp, and the lower part is a sealing part, the sealing part obliquely intersects with the fixed part, a pipe clamp groove is provided at the junction of the sealing part and the fixed part, the bottom surface of the sealing part is an inclined surface, which can be abutted against the belt conveyor belt to form a first seal, and a plurality of inclined liquid guide grooves are provided on the bottom surface of the sealing part, the liquid guide groove is connected with the pipe clamp groove through a liquid replenishing connecting hole provided in the sealing part; the liquid replenishing pipe is installed in the pipe clamp groove of the anti-overflow skirt plate, the liquid in the liquid replenishing pipe is injected into the liquid replenishing connecting hole through its lateral through hole, and the liquid replenishing pipe is externally connected to the liquid supply system through a liquid supply pipeline.

[0006] The liquid guiding groove on the sealing part is inclined inwards.

[0007] The upper end of the sealing portion is provided with a convex strip protruding outward for sealing, and the convex strip can abut against the belt of the belt conveyor to form a second seal.

[0008] The liquid supply system comprises a solenoid valve, a manual ball valve and a filter; the solenoid valve, the manual ball valve and the filter are all installed on the liquid supply pipeline and the solenoid valve and the manual ball valve are in parallel.

[0009] After adopting the above scheme, the present invention has the following advantages:

[0010] 1. Since the bottom surface of the anti-overflow skirt sealing part of the present invention is an inclined surface, forming the first seal, the inclined surface can be against the belt conveyor tape, which is a surface seal and increases the sealing area. The upper end of the sealing part has a convex strip for sealing and protruding outwards. The convex strip can be against the belt conveyor tape to form a second seal, thereby improving the sealing effect and reliability. The commonly used skirt sealing method is a double-layer or single-layer linear or near-linear sealing, which has a poor sealing effect.

[0011] 2. Since a plurality of inclined liquid guide grooves are provided on the bottom surface of the sealing portion of the overflow prevention skirt plate of the present invention, liquid can be injected, and the liquid (liquid phase) can reduce friction resistance, reduce energy consumption, reduce wear of the contact surface, and extend product life.

[0012] 3. Due to the liquid film layer on the contact surface between the bottom surface of the anti-overflow skirt plate sealing part and the surface of the belt conveyor belt, the harmful elements of the traditional sealing structure: air pressure, small particles, and three-phase substances (solid, liquid, and gas phases) work together to fill the tiny leakage gap between the surface of the belt conveyor belt and the bottom surface of the anti-overflow skirt plate sealing part, turning harm into benefit to achieve complete sealing.

[0013] 4. Since the sealing part of the overflow prevention skirt plate of the present invention is provided with a plurality of inclined liquid guiding grooves, the liquid guiding grooves can automatically discharge the three-phase mixed material back into the belt conveyor belt under the driving force of the friction force on the surface of the belt conveyor belt.

[0014] 5. The refilling hose with a certain pressure of the present invention can prevent the refilling connecting hole on the bottom surface of the anti-overflow skirt plate sealing part from being blocked, thereby ensuring continuous lubrication and refilling.

[0015] 6. Since the anti-overflow skirt of the present invention is made of rubber material, the elasticity of the rubber material and the fluidity and pressure of the liquid are utilized to realize dynamic fitting sealing of any local concave and convex parts of the interface, and further flexible sealing lines can be realized to cope with belts in poor working conditions.

[0016] 7. Since the present invention adopts automatic control, the wetting system can be automatically turned on according to the equipment opening situation and the needs of the working conditions, and the hydraulic pressure can be adjusted to ensure a reasonable wetting amount, thereby achieving the purpose of energy saving and efficiency improvement.

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an axonometric view of the present invention;

[0019] Figure 2 is a front view of the present invention;

[0020] Figure 3 is a front view of the anti-overflow skirt plate of the present invention;

[0021] Figure 4 yes Figure 3 A local enlarged view along the A direction;

[0022] Figure 5 It is a schematic diagram of the installation of the liquid supply system of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the liquid supply system of the present invention. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 4 As shown, the present invention is a sealing system for a belt conveyor, comprising a belt conveyor belt 1, a material guide trough side plate 2, a clamp 3, a pressure plate mechanism 4, and an anti-overflow device 5.

[0025] The lower end of the anti-overflow device 5 is close to the belt conveyor belt 1, and the upper part of the anti-overflow device 5 is connected to the clamp 3, and the clamp 3 is locked on the side plate 2 of the guide trough through the pressure plate mechanism 4.

[0026] The anti-overflow device 5 includes an anti-overflow skirt 51 and a liquid replenishing tube 52; the upper part of the anti-overflow skirt 51 is a fixed part 511 connected to the clamp 3, and the lower part is a sealing part 512, the sealing part 512 and the fixed part 511 are obliquely intersected, and a tube clamp groove 513 is provided at the junction of the sealing part 512 and the fixed part 511, the bottom surface of the sealing part 512 is an inclined surface, which can be abutted against the belt conveyor belt 1 to form a first seal, and a plurality of inclined liquid guide grooves 5121 are provided on the bottom surface of the sealing part 512, the liquid guide grooves 5121 are inclined inwardly and connected with the tube clamp groove 513 through a liquid replenishing connecting hole 5122 provided in the sealing part 512, and the upper end of the sealing part 512 has a convex strip 5123 protruding outward for sealing, and the convex strip 5123 can be abutted against the belt conveyor belt 1 to form a second seal. The refilling tube 52 is installed in the tube clamp groove 513 of the anti-overflow skirt plate 51 , and the liquid in the refilling tube 52 is injected into the refilling connecting hole 5122 through its lateral through hole. The refilling tube 52 is connected to the external liquid supply system 7 through the liquid supply pipeline 6 .

[0027] like Figure 5 , Figure 6 As shown, the liquid supply system 7 includes a solenoid valve 71, a manual ball valve 72, and a filter 73; the solenoid valve 71, the manual ball valve 72, and the filter 73 are all installed on the liquid supply pipeline 6, and the solenoid valve 71 and the manual ball valve 72 are in parallel. When the solenoid valve 71 fails, the manual ball valve 72 can be used for control.

[0028] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the specification should still fall within the scope covered by the patent of the present invention.

Claims

1. A sealing system for a belt conveyor, comprising a belt conveyor belt, a material guide trough side plate, a clamp, a pressure plate mechanism, and an anti-overflow device; the lower end of the anti-overflow device is close to the belt conveyor belt, the upper part of the anti-overflow device is connected to the clamp, and the clamp is locked on the material guide trough side plate through the pressure plate mechanism; characterized in that: The overflow prevention device includes an overflow prevention skirt and a liquid replenishment tube; the upper part of the overflow prevention skirt is a fixed part connected to the clamp, and the lower part is a sealing part, the sealing part and the fixed part are obliquely intersected, a tube clamp groove is provided at the junction of the sealing part and the fixed part, the bottom surface of the sealing part is an inclined surface, the sealing part and the belt conveyor belt are abutted to form a surface seal, forming a first seal, and a plurality of inclined liquid guide grooves are provided on the bottom surface of the sealing part, and the liquid guide grooves are connected with the tube clamp groove through a liquid replenishment connecting hole provided in the sealing part; the liquid replenishment tube is installed in the tube clamp groove of the overflow prevention skirt, the liquid in the liquid replenishment tube is injected into the liquid replenishment connecting hole through its lateral through hole, and the liquid replenishment tube is connected to the external liquid supply system through the liquid supply pipeline; a liquid film layer is formed on the contact surface between the bottom surface of the sealing part of the overflow prevention skirt and the surface of the belt conveyor belt.

2. The sealing system for a belt conveyor according to claim 1, characterized in that: The liquid guiding groove on the sealing part is arranged obliquely inwards.

3. The sealing system for a belt conveyor according to claim 1, characterized in that: The upper end of the sealing portion is provided with a convex strip protruding outward for sealing, and the convex strip can abut against the belt of the belt conveyor to form a second seal.

4. The sealing system for a belt conveyor according to claim 1, characterized in that: The liquid supply system comprises a solenoid valve, a manual ball valve and a filter; the solenoid valve, the manual ball valve and the filter are all installed on the liquid supply pipeline and the solenoid valve and the manual ball valve are in parallel.

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