Porous brick coal gangue material powder screening device

Abstract

The utility model relates to coal gangue screening technical field especially a kind of porous brick coal gangue material powder screening device, including screening shell, vibrating motor is fixedly installed in screening shell bottom, intercepting rod is fixedly installed in screening shell inner side, the intercepting rod is set multiple and evenly arranged, screening shell bottom is also fixedly installed with filter screen plate by bolt, buffering spring is fixedly installed in screening shell both sides, supporting frame is fixedly installed in buffering spring lower end, collecting box is placed in supporting frame inner side, base is fixedly installed in supporting frame bottom, this porous brick coal gangue material powder screening device can slowly feed, can prevent material from falling on filter screen plate once, causes greater screening burden, is worth promoting.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gangue screening, in particular to a screening device for coal gangue powder of porous bricks. Background Art

[0002] Coal gangue is a solid waste discharged during the coal mining process and the coal washing process. In order to make better use of coal gangue, some pretreatment needs to be carried out on coal gangue. For example, when using coal gangue to sinter porous bricks, the coal gangue needs to be crushed first. The sizes of the crushed coal gangue particles are different, and the crushed coal gangue particles need to be screened. The larger coal gangue particles are screened out for secondary crushing to ensure the sintering quality of the porous bricks. However, in the screening process of the existing screening devices, the granular materials are generally fed in a hurry during the feeding process. A large amount of granular materials fall on the filter screen, and the stacking thickness of the materials is relatively thick, which not only reduces the screening efficiency, but also makes the internal mesh holes of the filter screen more likely to be blocked, and there are defects. Content of the Utility Model

[0003] The purpose of the utility model is to solve the shortcoming in the prior art that the rapid feeding is likely to affect the screening efficiency, and to propose a screening device for coal gangue powder of porous bricks.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] Design a screening device for coal gangue powder of porous bricks, including a screening shell. A vibration motor is fixedly installed at the bottom of the screening shell. Intercepting rods are fixedly installed inside the screening shell. A plurality of intercepting rods are arranged and evenly distributed. A filter screen plate is also fixedly installed at the bottom of the screening shell through bolts. Buffer springs are fixedly installed on both sides of the screening shell. A supporting frame is fixedly installed at the lower end of the buffer spring. A collection box is placed inside the supporting frame. A base is fixedly installed at the bottom of the supporting frame.

[0006] Preferably, a fixing block is fixedly installed on one side of the bottom of the supporting frame. The lower end of the fixing block is hinged to the base. A limiting rod is fixedly installed on the other side of the bottom of the supporting frame. A sliding block is slidably sleeved on the outer side of the limiting rod. A hinge is fixedly installed at the lower end of the sliding block. One side of the hinge is fixedly connected to an electric telescopic oil cylinder. The electric telescopic oil cylinder is fixedly installed inside the base.

[0007] Preferably, the length direction of the limiting rod is perpendicular to the rotation axis direction of the hinge, and the rotation axis direction of the hinge is parallel to the rotation axis direction of the fixing block.

[0008] Preferably, the cross section of the supporting frame is in a "U" shape.

[0009] Preferably, the middle part of the interceptor bar is inclined downward in a "V" shape.

[0010] The present invention proposes a porous brick coal gangue powder screening device, which has the following advantages: During operation, the material is intercepted by the intercepting rod and falls onto the filter screen in a small amount in a diffused state, which slows down the falling speed of the material and reduces the amount of material screened by the filter screen each time, thus reducing the screening burden on the filter screen. By driving the screening shell to vibrate, the screening shell can bounce up and down under the elastic support of the buffer spring, which can cause the material on the filter screen to bounce and spread out the thickly stacked material, thereby further improving the screening speed of the filter screen. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a porous brick coal gangue powder screening device proposed in this utility model;

[0012] Figure 2 This is a cross-sectional structural schematic diagram of a porous brick coal gangue powder screening device proposed in this utility model.

[0013] Figure 3 This is a side view of the porous brick coal gangue powder screening device proposed in this utility model.

[0014] Figure 4 This is a schematic diagram of the inclined state of the screening shell and support frame in a porous brick coal gangue powder screening device proposed in this utility model.

[0015] In the diagram: 1. Screening shell; 2. Interception rod; 3. Filter screen; 4. Support frame; 5. Fixing block; 6. Sliding block; 7. Limiting rod; 8. Hinge; 9. Electric telescopic cylinder; 10. Base; 11. Collection box; 12. Buffer spring; 13. Vibration motor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Example 1: Refer to Figure 1-4A porous brick coal gangue powder screening device includes a screening shell 1. The top opening of the screening shell 1 is used for adding materials. A vibration motor 13 is fixedly installed at the bottom of the screening shell 1. The vibration motor 13 drives the screening shell 1 to vibrate, which allows the materials to spread out and make more thorough contact between the materials and the filter screen 3, resulting in higher filtration efficiency. The filter screen 3 is also fixedly installed at the bottom of the screening shell 1 by bolts. The filter screen 3 can filter and screen materials, and the filter screen 3 is easy to disassemble and assemble with the screening shell 1, making it easy to clean or replace the filter screen 3 if it is clogged or severely worn.

[0018] An intercepting rod 2 is fixedly installed inside the screening shell 1. The intercepting rod 2 is inclined downward in a "V" shape in the middle. Multiple intercepting rods 2 are set and evenly arranged. The gap between the intercepting rods 1 is larger than the particle size of the required material. The material of the required particle size will pass through the intercepting rods 1. The intercepting rods 1 are mainly used to intercept materials with larger particle sizes, which can reduce the filtration burden on the filter screen plate 3. In addition, the intercepting rods 2 are located below the top opening of the screening shell 1. The material fed in will first pass through the intercepting rods 2 and then fall onto the filter screen plate 3 for screening. The intercepting rods 2 can also slow down the falling speed of the material and allow the material to be dispersed onto the filter screen plate 3 in small amounts and multiple times.

[0019] Buffer springs 12 are fixedly installed on both sides of the screening shell 1, and a support frame 4 is fixedly installed at the lower end of the buffer springs 12. The screening shell 1 and the support frame 4 are connected by the buffer springs 12, allowing the screening shell 1 to move back and forth in a small range. When the vibrating motor 13 drives the screening shell 1 to vibrate, the screening shell 1 can squeeze the buffer springs 12 and move up and down, presenting a linear reciprocating trajectory, which can make the material on the filter screen 3 bounce up and down, allowing the material to be fully and quickly screened.

[0020] The support frame 4 has a "U" shaped cross-section. A collection box 11 is placed inside the support frame 4, which supports the collection box 11. The collection box 11 is located below the filter screen plate 3, allowing material passing through the filter screen plate 3 to fall into the collection box 11 and be collected. A base 10 is fixedly installed at the bottom of the support frame 4, providing support for the support frame 4.

[0021] Working principle: During operation, the porous coal gangue powder screening device feeds the material into the screening shell 1. A small amount of material, intercepted by the intercepting rod 2, diffuses and falls onto the filter screen 3, slowing its descent and reducing the amount of material screened by the filter screen 3 each time, thus lessening its screening burden. Simultaneously, the vibration motor 13 is activated, causing the screening shell 1 to vibrate. This vibration, supported by the buffer spring 12, causes the material on the filter screen 3 to agitate, allowing thicker layers of material to spread out, further increasing the screening speed of the filter screen 3. The material passing through the filter screen 3 falls into the collection box 11. Material remaining on the intercepting rod 2 and the filter screen 3 needs to be cleaned separately by opening the door on one side of the screening shell 1.

[0022] Example 2: In Example 1, when opening the door on one side of the screening shell 1 to clean the material intercepted on the intercepting rod 2 and the filter screen 3, since both the intercepting rod 2 and the filter screen 3 are horizontally set, the material does not easily slide off on its own. It requires manual removal using tools, which is quite troublesome. Therefore, this example is proposed. (Refer to...) Figure 1-4 In another preferred embodiment of this utility model, based on embodiment 1, a fixing block 5 is fixedly installed on one side of the bottom of the support frame 4. The lower end of the fixing block 5 is hinged to the base 10, and the lower end of the fixing block 5 can rotate with the base 10. A limiting rod 7 is fixedly installed on the other side of the bottom of the support frame 4. The length direction of the limiting rod 7 is perpendicular to the rotation axis of the hinge 8. A sliding block 6 is slidably sleeved on the outside of the limiting rod 7. A hinge 8 is fixedly installed at the lower end of the sliding block 6. The rotation axis of the hinge 8 is parallel to the rotation axis of the fixing block 5. An electric telescopic cylinder 9 is fixedly connected to one side of the hinge 8. The sliding block 6 and the electric telescopic cylinder 9 are respectively connected to both sides of the hinge 8. The electric telescopic cylinder 9 is fixedly installed inside the base 10. The electric telescopic cylinder 9 can push the hinge 8 and the sliding block 6 to move up and down.

[0023] When the electric telescopic rod 9 is opened, it will drive the hinge 8 to move upward. The upward movement of the hinge 8 will push the sliding block 6 to move upward. The upward movement of the sliding block 6 will push one side of the support frame 4 to move upward through the limit rod 7, causing the fixed block 5 to rotate. This will cause the support frame 4 and the screening shell 1 to tilt as a whole, thereby causing the intercepting rod 2 and the filter screen 3 to tilt. When the door is opened at this time, the material that is stuck above the intercepting rod 2 or the filter screen 3 can be discharged separately, which is quite convenient.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A porous brick coal gangue powder screening device, comprising a screening shell (1), characterized in that, A vibrating motor (13) is fixedly installed at the bottom of the screening shell (1). An intercepting rod (2) is fixedly installed inside the screening shell (1). A plurality of the intercepting rods (2) are provided and arranged evenly. A filter screen plate (3) is also fixedly installed at the bottom of the screening shell (1) through bolts. Buffer springs (12) are fixedly installed on both sides of the screening shell (1). A supporting frame (4) is fixedly installed at the lower ends of the buffer springs (12). A collection box (11) is placed inside the supporting frame (4). A base (10) is fixedly installed at the bottom of the supporting frame (4).

2. The porous brick coal gangue powder screening device according to claim 1, characterized in that, A fixing block (5) is fixedly installed on one side of the bottom of the supporting frame (4). The lower end of the fixing block (5) is hinged to the base (10). A limiting rod (7) is fixedly installed on the other side of the bottom of the supporting frame (4). A sliding block (6) is sleeved on the outer side of the limiting rod (7) in a sliding manner. A hinge (8) is fixedly installed at the lower end of the sliding block (6). One side of the hinge (8) is fixedly connected to an electric telescopic oil cylinder (9). The electric telescopic oil cylinder (9) is fixedly installed inside the base (10).

3. The porous brick coal gangue powder screening device according to claim 2, characterized in that, The length direction of the limiting rod (7) is perpendicular to the rotation axis direction of the hinge (8). The rotation axis direction of the hinge (8) is parallel to the rotation axis direction of the fixing block (5).

4. The porous brick coal gangue powder screening device according to claim 1, characterized in that, The cross section of the supporting frame (4) is "U”-shaped.

5. The porous brick coal gangue powder screening device according to claim 1, characterized in that, The middle part of the intercepting rod (2) inclines downward to form a "V” shape.

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