Efficient classifying screen for fine coal slime

Abstract

The utility model belongs to the technical field of coal slime screening, and discloses a fine coal slime efficient classifying screen which comprises a sorting frame, a vibrator is installed on the sorting frame, a vibrating screening net is installed on the vibrator, the screening net is located in the sorting frame, and a feeding hopper is installed on the sorting frame. The dust removal assemblies are used for reducing dust floating all around, and each dust removal assembly comprises a connecting pipe installed in the sorting frame and a plurality of spraying heads installed at the bottom of the connecting pipe; through the arrangement of the dust removal assembly, dust removal can be carried out on coal slime on the sorting frame, dust diffusion can be reduced, therefore, screening and processing operation of the coal slime can be facilitated, the coal slime processing efficiency of the classifying screen is improved, through the arrangement of the adjusting assembly, the height between the connecting pipe and the coal slime can be adjusted, and the coal slime can be conveniently separated. And sufficient spraying of the coal slime is ensured, diffusion of coal slime dust is further reduced, and the treatment effect of the classifying screen on the coal slime is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal slime screening, in particular to a high-efficiency grading screen for fine-grained coal slime. Background Art

[0002] Coal slime refers to a semi-solid substance formed by coal powder containing water. It is a product in the coal production process. Depending on the variety and formation mechanism, its properties vary greatly, and its availability also varies greatly. It has many types and a wide range of uses. During coal slime production, the coal slime is generally vibrated and sorted through a grading screen to improve its utilization rate.

[0003] In a Chinese patent with publication number CN215744742U, a coal slime vibration grading screen is disclosed, which realizes step-by-step screening of coal slime by setting a first screen and a second screen with different mesh sizes. Specifically, the first screen is used to quickly separate small-particle coal slime that meets production requirements from large-particle coal slime, and then the second screen is used to separate medium-particle coal slime from small-particle coal slime, and finally small-particle coal slime that meets production requirements is obtained; however, the existing coal slime vibration grading screen is prone to generate more dust during screening, causing the dust to spread in the surrounding environment, thereby causing air pollution to the working environment, affecting the screening and processing of coal slime, and reducing the efficiency of the grading screen in treating coal slime. Utility Model Content

[0004] The utility model provides a fine-grained coal slime efficient grading screen to solve the problem that the existing coal slime vibration grading screen is prone to generate more dust during screening, causing the dust to spread in the surrounding environment, causing air pollution to the working environment, affecting the screening and processing of the coal slime, and reducing the efficiency of the grading screen in processing the coal slime.

[0005] In order to achieve the above purpose, the utility model provides the following technical solution: a fine-grained coal slime high-efficiency grading screen, comprising:

[0006] A sorting frame, wherein a vibrator is installed on the sorting frame, a vibrating sub-screen is installed on the vibrator, and the sub-screen is located inside the sorting frame, and a feed hopper is installed on one side of the top of the sorting frame;

[0007] Multiple dust removal components are used to reduce dust floating around. Each of the dust removal components includes a connecting pipe installed in the sorting frame and multiple spray heads installed at the bottom of the connecting pipe. A water pump is installed on the sorting frame. A connecting pipe is installed between the water pump and the connecting pipe. The sorting frame is provided with an adjusting component for driving the connecting pipe to adjust. The adjusting component is provided with a disassembly and assembly component for positioning and connecting the adjusting component with the connecting pipe. Through the arrangement of multiple dust removal components, the coal slime at different positions on the sorting frame can be sprinkled for dust reduction, thereby reducing the diffusion of dust and improving the screening effect of the coal slime.

[0008] Preferably, the adjustment component includes two installation boxes symmetrically installed on the sorting frame and two guide blocks symmetrically installed on the connecting pipe, and one side of the two installation boxes is provided with a guide groove for inserting the two guide blocks, one side of the installation box is provided with an adjustment cavity communicated with the inside of the guide groove, and the adjustment cavity is provided with a power component for pushing the guide blocks to move; through the setting of the two guide blocks, the connecting pipe can be guided to move stably between the two installation boxes to avoid tilting of the connecting pipe.

[0009] Preferably, the power assembly includes a driving motor fixed in the adjusting cavity and a connecting rod fixed at one end of the guide block, a threaded column is fixed to the top of the driving motor, a movable ring is sleeved on the outside of the threaded column, one end of the connecting rod is fixed to the outside of the movable ring, and the outside of the installation box is hinged with a box door that closes it to the adjusting cavity; and an internal thread is provided in the movable ring to screw together with the external thread on the threaded column.

[0010] Preferably, a baffle is also installed on the sorting frame, and a through slot for inserting the installation box is opened on one side of the baffle, and the size of the through slot is adapted to the installation box; through the setting of the baffle, the top of the sorting frame can be extended, which can block part of the dust from diffusing outward and reduce the loss of coal slime screening.

[0011] Preferably, the disassembly and assembly assembly includes a positioning ring fixed at one end of the guide block and a clamping block fixed at one end of the connecting pipe, the top of the positioning ring is provided with a clamping cavity for inserting the clamping block, and the outside of the positioning ring is provided with a locking assembly for fixing it to the clamping block.

[0012] Preferably, the locking assembly includes a first screw hole provided on the outside of the positioning ring and a second screw hole provided on the outside of the clamping block, a threaded rod is screwed on the positioning ring, and the threaded rod is screwed into the second screw hole corresponding to the first screw hole through the first screw hole.

[0013] Preferably, a limiting ring is fixed to the bottom end of the clamping block, a spring is fixed in the clamping cavity, and one end of the spring relative to the clamping cavity abuts against the bottom end of the limiting ring. Through the setting of the spring, the clamping block can be pushed upward in the clamping cavity, reducing the difficulty of removing the connecting pipe.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] (1) By setting up the dust removal component, the coal slime on the sorting rack can be dusted, which can reduce the diffusion of dust, thereby solving the problem that the existing coal slime vibration grading screen is prone to generate a lot of dust during screening, causing dust to spread in the surrounding environment, causing air pollution to the working environment, and affecting the screening and processing of coal slime. The screening and processing operation of coal slime can be facilitated, and the efficiency of the grading screen for treating coal slime is greatly improved;

[0016] And by adjusting the setting of the component, the height between the connecting pipe and the coal slime can be adjusted, which can ensure the sufficient spraying of the coal slime, reduce the diffusion of coal slime dust, and greatly improve the treatment effect of the grading screen on the coal slime.

[0017] (2) Through the setting of the disassembly and assembly components, the connecting pipe can be positioned and disassembled, thereby facilitating the disassembly and cleaning of the connecting pipe, avoiding the situation where the spraying effect is reduced due to long-term use and the spraying is not thorough, and further improving the efficiency of the grading screen in treating coal slime. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the connecting pipe and the installation box of the utility model when they are installed;

[0021] Figure 3 It is a structural schematic diagram of the utility model when the clamping block is separated from the clamping cavity;

[0022] Figure 4 This is a schematic diagram of the structure of the utility model when the clamping block and the spring are in conflict;

[0023] In the figure: 1. Sorting rack; 11. Vibrator; 12. Screening screen; 13. Feed hopper; 2. Dust removal assembly; 21. Connecting pipe; 22. Spraying head; 23. Connecting pipe; 24. Water pump; 3. Adjustment assembly; 31. Mounting box; 32. Adjustment cavity; 33. Guide block; 34. Guide groove; 35. Connecting rod; 36. Threaded column; 37. Drive motor; 38. Moving ring; 4. Disassembly and assembly assembly; 41. Positioning ring; 42. Snap-in block; 43. Snap-in cavity; 44. First screw hole; 45. Threaded rod; 46. Spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1 A fine-grained coal slime high-efficiency grading screen is shown, comprising:

[0026] A sorting frame 1 is provided, wherein a vibrator 11 is installed on the sorting frame 1, a vibrating sub-screen 12 is installed on the vibrator 11, and the sub-screen 12 is located inside the sorting frame 1, and a feed hopper 13 is installed on one side of the top of the sorting frame 1; wherein, the structures and principles of the vibrator 11, the sub-screen 12 and the sorting frame 1 are all prior arts, and specific reference may be made to the comparative document (publication number CN215744742U, and the patent name is a coal slime vibration grading screen), which will not be described in detail here.

[0027] As can be seen from the above, when in use, the fine-grained coal slime is first collected by the feed hopper 13, and then the collected fine-grained coal slime is discharged onto the sorting frame 1, and the fallen fine-grained coal slime is collected by the sub-screen 12. At this time, the vibrator 11 is used to drive the sub-screen 12 to vibrate, so as to screen the coal slime that falls on the screen, thereby improving the utilization rate of the coal slime.

[0028] refer to Figure 1-Figure 4 As shown, multiple dust removal components 2 are used to reduce dust floating around. Each dust removal component 2 includes a connecting pipe 21 installed in the sorting frame 1 and multiple spray heads 22 installed at the bottom of the connecting pipe 21. A water pump 24 is installed on the sorting frame 1. A connecting pipe 23 is installed between the water pump 24 and the connecting pipe 21. The sorting frame 1 is provided with an adjusting component 3 for driving the connecting pipe 21 to adjust. The adjusting component 3 is provided with a disassembly and assembly component 4 for positioning and connecting it with the connecting pipe 21, and the water inlet end of the water pump 24 is connected to an external water pipe to ensure sufficient water source;

[0029] The adjustment component 3 includes two installation boxes 31 symmetrically installed on the sorting frame 1 and two guide blocks 33 symmetrically installed on the connecting pipe 21, and one side of the two installation boxes 31 is provided with a guide groove 34 for inserting the two guide blocks 33, and one side of the installation box 31 is provided with an adjustment cavity 32 communicated with the inside of the guide groove 34, and the adjustment cavity 32 is provided with a power component for pushing the guide block 33 to move; the power component includes a driving motor 37 fixed in the adjustment cavity 32 and a connecting rod 35 fixed at one end of the guide block 33, a threaded column 36 is fixed at the top of the driving motor 37, a moving ring 38 is sleeved on the outside of the threaded column 36, one end of the connecting rod 35 is fixed to the outside of the moving ring 38, and the outside of the installation box 31 is hinged with a box door for closing it with the adjustment cavity 32; a baffle is also installed on the sorting frame 1, and one side of the baffle is provided with a through groove for inserting the installation box 31, and the size of the through groove is adapted to the installation box 31.

[0030] Through the above technical solution:

[0031] When the sub-screen 12 is screening fine-grained coal slime, the water sucked in is transported to the inside of the connecting pipe 23 through the water inlet end of the water pump 24. At this time, the connecting pipe 23 guides the water inside the connecting pipe 21, and the spray head 22 sprays the water inside the connecting pipe 21 outward, showering the water on the coal slime on the surface of the sub-screen 12, thereby removing dust from the coal slime on the sorting rack 1 and reducing the diffusion of dust;

[0032] When the connecting pipe 21 needs to be adjusted, the threaded column 36 is driven to rotate by the driving motor 37, and then the external thread on the threaded column 36 is screwed into the internal thread provided in the moving ring 38, and the moving ring 38 is moved up and down along the outside of the threaded column 36. At this time, the moving ring 38 moves upward to drive the connecting rod 35 to move upward along the adjustment cavity 32, and the movement of the connecting rod 35 drives one of the guide blocks 33 to slide upward along one of the guide grooves 34, and the connecting pipe 21 moves upward in the two installation boxes 31, and the movement of the connecting pipe 21 drives the other guide block 33 to slide upward synchronously along the other guide groove 34, so that the height between the connecting pipe 21 and the coal slime can be adjusted, which can ensure the sufficient spraying of the coal slime, reduce the diffusion of dust inside the coal slime, and greatly improve the treatment effect of the grading screen on the coal slime.

[0033] In addition, refer to Figure 2-Figure 4As shown, the disassembly and assembly component 4 includes a positioning ring 41 fixed at one end of the guide block 33 and a clamping block 42 fixed at one end of the connecting tube 21. A clamping cavity 43 for inserting the clamping block 42 is provided at the top of the positioning ring 41, and a locking component for fixing the positioning ring 41 to the clamping block 42 is provided on the outside of the positioning ring 41; the locking component includes a first screw hole 44 provided on the outside of the positioning ring 41 and a second screw hole provided on the outside of the clamping block 42, a threaded rod 45 is screwed on the positioning ring 41, and the threaded rod 45 is screwed into the second screw hole corresponding to the first screw hole 44 through the first screw hole 44; a limiting ring is also fixed at the bottom end of the clamping block 42, a spring 46 is fixed in the clamping cavity 43, and the spring 46 is in conflict with the bottom end of the limiting ring relative to one end of the clamping cavity 43.

[0034] Through the above technical solution:

[0035] When it is necessary to disassemble and clean the connecting pipe 21, the threaded rod 45 is rotated to disengage it along the first screw hole 44 and the second screw hole, and then the clamping block 42 loses its limiting effect in the clamping cavity 43. At this time, the spring 46 compresses and resets the thrust, pushing the limiting ring to move upward along the clamping cavity 43. However, the limiting ring moves and pushes the clamping block 42 to move upward along the clamping cavity 43, and then the clamping block 42 is pushed upward from the clamping cavity 43, and then the connecting pipe 21 is disconnected from the positioning ring 41, so that the connecting pipe 21 can be disassembled and cleaned, avoiding the situation where the spraying effect is reduced due to long-term use, resulting in incomplete spraying, and further improving the efficiency of the grading screen in treating coal slime.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fine-grained coal slime high-efficiency grading screen, characterized in that: include: A sorting frame (1), wherein a vibrator (11) is installed on the sorting frame (1), a vibrating screen (12) is installed on the vibrator (11), and the screen (12) is located inside the sorting frame (1), and a feed hopper (13) is installed on one side of the top end of the sorting frame (1); A plurality of dust removal components (2) are used to reduce dust floating around. Each of the dust removal components (2) comprises a connecting pipe (21) installed in a sorting frame (1) and a plurality of spray heads (22) installed at the bottom of the connecting pipe (21). A water pump (24) is installed on the sorting frame (1). A connecting pipe (23) is installed between the water pump (24) and the connecting pipe (21). The sorting frame (1) is provided with an adjusting component (3) for driving the connecting pipe (21) to adjust. The adjusting component (3) is provided with a disassembly and assembly component (4) for positioning and connecting the adjusting component with the connecting pipe (21).

2. The fine-grained coal slime high-efficiency grading screen according to claim 1, characterized in that: The adjustment component (3) comprises two installation boxes (31) symmetrically installed on the sorting frame (1) and two guide blocks (33) symmetrically installed on the connecting pipe (21), and one side of the two installation boxes (31) is provided with a guide groove (34) for inserting the two guide blocks (33), one side of the installation box (31) is provided with an adjustment cavity (32) communicated with the inside of the guide groove (34), and a power component for pushing the guide blocks (33) to move is provided in the adjustment cavity (32).

3. The fine-grained coal slime high-efficiency grading screen according to claim 2, characterized in that: The power assembly comprises a driving motor (37) fixed in the regulating chamber (32) and a connecting rod (35) fixed at one end of the guide block (33); a threaded column (36) is fixed at the top end of the driving motor (37); a moving ring (38) is sleeved on the outside of the threaded column (36); one end of the connecting rod (35) is fixed to the outside of the moving ring (38); and a door is hinged on the outside of the installation box (31) to close it to the regulating chamber (32).

4. The fine-grained coal slime high-efficiency grading screen according to claim 2, characterized in that: A baffle is also installed on the sorting frame (1), and a through slot for inserting the installation box (31) is provided on one side of the baffle, and the size of the through slot is adapted to the installation box (31).

5. The fine-grained coal slime high-efficiency grading screen according to claim 3, characterized in that: The disassembly assembly (4) comprises a positioning ring (41) fixed to one end of the guide block (33) and a clamping block (42) fixed to one end of the connecting pipe (21); a clamping cavity (43) for inserting the clamping block (42) is provided at the top of the positioning ring (41); and a locking assembly for fixing the positioning ring (41) to the clamping block (42) is provided on the outside of the positioning ring (41).

6. The fine-grained coal slime high-efficiency grading screen according to claim 5, characterized in that: The locking assembly comprises a first screw hole (44) provided on the outside of the positioning ring (41) and a second screw hole provided on the outside of the clamping block (42); a threaded rod (45) is screwed on the positioning ring (41), and the threaded rod (45) passes through the first screw hole (44) and is screwed into the second screw hole corresponding to the first screw hole (44).

7. The fine-grained coal slime high-efficiency grading screen according to claim 5, characterized in that: A limiting ring is also fixed at the bottom end of the clamping block (42), a spring (46) is fixed in the clamping cavity (43), and one end of the spring (46) relative to the clamping cavity (43) contacts the bottom end of the limiting ring.

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