Coal screening device

Abstract

The utility model discloses: a screening device for coal conveying, including first conveyer belt, branch belt feeder and support frame, the support frame is used for device element, the branch belt feeder is installed on the support frame, its characterized in that, the support frame is equipped with coal screening subassembly, the case relates to coal screening technical field, and it has the beneficial effect that: the case can divide coal into three different sizes and transport in the process of transporting coal in the coal screening subassembly, thereby more conveniently provides the coal block of equal size to boiler equipment, can save a large amount of screening time and manpower consumption.

Description

Technical Field

[0001] This utility model belongs to the field of coal screening technology, specifically relating to a screening device for coal conveying. Background Technology

[0002] A continuous supply of coal is required when the boiler in a thermal power plant is running. However, the coal pieces in the coal are of different sizes, and the combustion efficiency of coal pieces of different sizes is different. If they enter the boiler together, it will affect the boiler's working efficiency. However, it is very time-consuming and labor-intensive to screen the coal pieces separately. Utility Model Content

[0003] In order to solve the above-mentioned problems in the existing technology, the present invention aims to provide a coal conveying screening device, including a first conveyor belt, a material distribution conveyor belt and a support frame. The support frame is used for device components, the material distribution conveyor belt is installed on the support frame, and the support frame is provided with a coal conveying screening component.

[0004] The coal conveying and screening assembly includes: a material distribution box, a vibration motor, a fixed frame, an inclined plate, a material leakage hole, a lifting channel, a telescopic frame, an electric push rod, and a lifting partition.

[0005] The vibration motor is mounted on the support frame, the fixed frame is mounted on both sides of the material distribution box and erected on the output end of the vibration motor, the inclined plate is mounted inside the material distribution box, the material leakage hole is opened on the inclined plate, the lifting channel is opened on the inclined plate, the telescopic frame is mounted inside the lifting channel, the electric push rod is mounted inside the telescopic frame, and the lifting partition extends into the telescopic frame and is connected to the telescopic end of the electric push rod.

[0006] Preferably, the first conveyor belt is mounted on top of the material distribution box and aligned with the inclined plate.

[0007] Preferably, the bottom of the inclined plate is provided with a material distribution slide and is aligned with the material distribution conveyor belt in sequence.

[0008] Preferably, the top inclination of the lifting partition is consistent with the slope of the inclined plate surface.

[0009] Beneficial effects

[0010] This coal conveying screening device has the following advantages:

[0011] This project utilizes a coal conveying and screening component to separate coal into three different sizes during transport, making it easier to supply coal of the same size to boiler equipment and saving significant screening time and manpower. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0013] Figure 1 This is a three-dimensional external structural diagram of a screening device for coal conveying according to the present invention;

[0014] Figure 2 This is a schematic diagram of the front cross-sectional structure of a screening device for coal conveying according to the present invention;

[0015] Figure 3 This is a partially enlarged structural diagram of the coal screening component of a coal conveying screening device according to this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the coal screening component of a coal screening device according to the present invention;

[0017] In the diagram: 1. First conveyor belt; 2. Distributing conveyor belt; 3. Support frame; 4. Distributing box; 5. Vibration motor; 6. Fixed frame; 7. Inclined plate; 8. Material leakage hole; 9. Lifting trough; 10. Telescopic frame; 11. Electric push rod; 12. Lifting partition. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] The following is combined with Figure 1-4 This invention describes a specific embodiment of a coal conveying screening device, comprising a first conveyor belt 1, a material distribution conveyor belt 2, and a support frame 3. The support frame 3 is used for device components, the material distribution conveyor belt 2 is mounted on the support frame 3, and the support frame 3 is provided with a coal conveying screening component.

[0021] The coal conveying and screening assembly includes: a material distribution box 4, a vibration motor 5, a fixed frame 6, an inclined plate 7, a material leakage hole 8, a lifting channel 9, a telescopic frame 10, an electric push rod 11, and a lifting partition 12.

[0022] The vibration motor 5 is mounted on the support frame 3, the fixed frame 6 is mounted on both sides of the material distribution box 4 and is erected on the output end of the vibration motor 5, the inclined plate 7 is mounted inside the material distribution box 4, the leakage hole 8 is opened on the inclined plate 7, the lifting channel 9 is opened on the inclined plate 7, the telescopic frame 10 is mounted inside the lifting channel 9, the electric push rod 11 is mounted inside the telescopic frame 10, and the lifting partition 12 extends into the telescopic frame 10 and is connected to the telescopic end of the electric push rod 11;

[0023] It should be noted that during coal transportation, coal blocks are poured onto the first conveyor belt 1 for unified transport, and then enter the distribution box 4. The vibration motor 5 drives the distribution box 4 to vibrate up and down through the fixed frame 6. The coal is discharged through the discharge hole 8 in the first area of ​​the inclined plate 7, allowing coal blocks of appropriate size to fall. The up and down vibration makes it easier to discharge coal blocks of appropriate size. Then, the lifting partition 12 behind the discharge hole 8 in the first area of ​​the inclined plate 7 is lowered by the retraction of the electric push rod 11 until the top of the lifting partition 12 is level with the surface of the inclined plate 7. The coal can then continue to slide down the inclined plate 7 to the discharge hole 8 in the second area of ​​the inclined plate 7 for discharge. This method is used until the coal is divided into three parts and enters the distribution conveyor belt 2 for further transportation, thus better classifying the coal.

[0024] Preferably, the first conveyor belt 1 is mounted on top of the material distribution box 4 and aligned with the inclined plate 7.

[0025] It should be noted that aligning the first conveyor belt 1 with the inclined plate 7 will cause the coal to fall onto the material leakage hole 8 in the first area of ​​the inclined plate 7, just on the first conveyor belt 1.

[0026] Preferably, the bottom of the inclined plate 7 is provided with a material distribution slide and is aligned with the material distribution conveyor belt 2 in sequence.

[0027] It should be noted that the material distribution conveyor belt 2 can transport coal blocks of three different sizes separately in the material distribution chute.

[0028] Preferably, the top inclination of the lifting partition 12 is consistent with the surface slope of the inclined plate 7.

[0029] It should be noted that the top of the lifting partition 12 with a consistent slope and the surface of the inclined plate 7 can ensure that materials can pass smoothly after the lifting partition 12 is lowered.

[0030] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A coal conveying screening device, comprising a first conveyor belt, a material distribution conveyor belt, and a support frame, wherein the support frame is used for device components, and the material distribution conveyor belt is mounted on the support frame, characterized in that, The support frame is equipped with a coal conveying and screening component; The coal conveying and screening assembly includes: a material distribution box, a vibration motor, a fixed frame, an inclined plate, a material leakage hole, a lifting channel, a telescopic frame, an electric push rod, and a lifting partition. The vibratory motor is mounted on the support frame, the fixed frame is mounted on both sides of the material distribution box and erected on the output end of the vibratory motor, the inclined plate is installed inside the material distribution box, the material leakage hole is opened on the inclined plate, the lifting channel is opened on the inclined plate, the telescopic frame is installed in the lifting channel, the electric push rod is installed inside the telescopic frame, and the lifting partition extends into the telescopic frame and is connected to the telescopic end of the electric push rod; The diameter of the discharge holes increases sequentially from the diameter of the holes on the inclined plate.

2. The screening device for coal conveying according to claim 1, characterized in that, The first conveyor belt is mounted on top of the material distribution box and aligned with the inclined plate.

3. The screening device for coal conveying according to claim 1, characterized in that, The bottom of the inclined plate is equipped with a material distribution slide and is aligned with the material distribution conveyor belt in sequence.

4. A screening device for coal conveying according to claim 1, characterized in that, The top inclination of the lifting partition is consistent with the slope of the inclined plate surface.

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