Coal gangue sorting device
By utilizing the sorting inclined throwing mechanism and guiding mechanism of the coal gangue sorting device, the problem of low screening efficiency of small coal blocks is solved by changing the movement path of the coal blocks during throwing, thus achieving high-efficiency coal gangue screening.
Patent Information
- Application Number
- CN202422892592.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The current coal gangue screening efficiency is low, especially the screening efficiency of small coal blocks is insufficient, and the traditional mechanical clamping method is inefficient.
A coal gangue sorting device is adopted, which uses a cylinder-driven sorting inclined throwing mechanism to change the path of the coal block during the throwing process for screening. Combined with a guiding mechanism and a buffer mechanism, the screening efficiency is improved.
It improves the screening efficiency of small coal lumps and is suitable for assembly line conveyors, with a screening efficiency significantly higher than that of traditional mechanical gripping methods.
Smart Images
Figure CN223505671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a coal gangue sorting device, which belongs to coal production equipment. Background Technology
[0002] Coal is one of the main energy sources in China. It is a fossil fuel formed from the carbonization of ancient trees. Its main component is carbon, but it also contains some rock. This rock-containing coal is called coal gangue, which, while having some utilization value, has a low calorific value as fuel.
[0003] In coal production, coal gangue is usually screened out. In addition to manual screening, screening using machinery usually requires high efficiency to match the coal gangue screening of the production line.
[0004] Currently, screening usually adopts mechanical gripping, which is inefficient and only suitable for large coal blocks. It is inefficient for gripping small coal blocks.
[0005] Mechanical screening during the spreading process can use cylinders, but a reasonable structure is required to effectively separate coal and coal gangue. Summary of the Invention
[0006] To address the aforementioned problems, this invention provides a coal gangue sorting device that enables the mechanical mechanism of coal gangue screening to perform screening during the throwing process, thereby improving screening efficiency.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] This utility model relates to a coal gangue sorting device, comprising a coal conveyor, a clean coal transfer mechanism, and a coal gangue transfer mechanism. The clean coal transfer mechanism and the coal gangue transfer mechanism are positioned on the throwing side of the coal conveyor, with the clean coal transfer mechanism located on the parabolic trajectory of the coal conveyor's feed. The gangue transfer mechanism is located at the far end of the clean coal transfer mechanism. A sorting inclined throwing mechanism is provided inside the clean coal transfer mechanism. This sorting inclined throwing mechanism includes a cylinder, a guide mechanism, and a sorting inclined plate. The cylinder and the guide mechanism are vertically arranged. The sorting inclined plate is located at the top of the piston rod of the cylinder. The top of the guide rod of the guide mechanism is connected to the sorting inclined plate, and the sorting inclined plate is inclined towards the coal gangue transfer mechanism.
[0009] According to the coal gangue sorting device, the bottom of the cylinder is hinged to the frame of the sorting inclined throwing mechanism, and the fixed position of the bottom of the cylinder is fixed at a distance from the feeding measuring frame of the coal conveyor.
[0010] According to the coal gangue sorting device, the guiding mechanism is arranged in pairs on both sides of the cylinder. The guiding mechanism includes a guide cylinder and a guide rod. The guide rod is located in the guide cylinder, and the guide cylinder is fixed on the frame. An inclined plate is provided at the top of the guide rod, and a hole is opened on the inclined plate to fix the rear part of the sorting inclined plate.
[0011] According to the coal gangue sorting device, a buffer mechanism, which is a spring, is provided between the piston rod of the cylinder and the sorting inclined plate.
[0012] According to the coal gangue sorting device, there are multiple sorting inclined throwing mechanisms arranged side by side on the throwing side of the coal conveyor, with a distance of 1-5mm between the sorting inclined plates.
[0013] According to the coal gangue sorting device, the height and position of the sorting inclined plate of the sorting inclined throwing mechanism can be adjusted.
[0014] This device uses coal lumps for screening when they are thrown, and is suitable for screening small coal lumps. It is also suitable for coal screening on assembly line conveyors, and its screening efficiency is higher than that of mechanical clamping.
[0015] The screening in this device adopts a top-throw method, which utilizes the motion curve of the thrown coal blocks to achieve collision and change the motion path, resulting in high screening efficiency. Attached Figure Description
[0016] Figure 1 This is the side structure of this utility model. Figure 1 ,
[0017] Figure 2 This is the side structure of this utility model. Figure 2 ,
[0018] Figure 3 This is an overall structural diagram of the present invention.
[0019] Figure 4 This is a top view of the present invention.
[0020] Figure label:
[0021] 1. Sorting inclined throwing mechanism; 11. Cylinder; 12. Guiding mechanism; 121. Guide cylinder; 122. Guide rod; 123. Inclined plate; 13. Sorting inclined plate; 2. Coal conveyor; 3. Clean coal transfer mechanism; 4. Coal gangue transfer mechanism; 5. Coal throwing path; 6. Coal gangue top throwing path. Detailed Implementation
[0022] The specific structure of this utility model will be further described below:
[0023] The present invention relates to a coal gangue sorting device, comprising a coal conveyor, a clean coal transfer mechanism, a coal gangue transfer mechanism, and a sorting inclined throwing mechanism 1.
[0024] The clean coal transfer mechanism and the coal gangue transfer mechanism are set on the throwing side of the coal conveyor, and the clean coal transfer mechanism is located on the parabolic line of the coal conveyor's feeding descent. The gangue transfer mechanism is located at the far end of the clean coal transfer mechanism, and a sorting inclined throwing mechanism 1 is set on the inner side of the clean coal transfer mechanism.
[0025] Coal conveyors are used to transport raw coal, and are typically belt conveyor mechanisms. They have a large spillway and are suitable for screening structures. Clean coal transfer mechanisms are used to collect and transport screened coal, while coal gangue transfer mechanisms are used to screen and transport the separated coal gangue.
[0026] The sorting inclined throwing mechanism 1 in this device includes a cylinder 11, a guide mechanism 12, and a sorting inclined plate 13. The cylinder 11 and the wire guide mechanism are arranged vertically. The sorting inclined plate 13 is set at the top of the piston rod of the cylinder 11. The top of the guide rod 122 of the guide mechanism 12 is connected to the sorting inclined plate 13. The sorting inclined plate 13 is inclined toward the coal gangue transfer mechanism.
[0027] The bottom of cylinder 11 is hinged to the frame of the sorting inclined throwing mechanism 1, and the bottom of cylinder 11 is fixed at a fixed distance from the feeding measuring frame of the coal conveyor. The frame is a fixed component of the sorting inclined throwing mechanism and is set up in conjunction with the conveyor. It can also be set up separately, but attention needs to be paid to adjusting the distance and angle between it and the conveyor to ensure that the sorting inclined plate 13 contacts the thrown coal.
[0028] A buffer mechanism, which is a spring, is provided between the piston rod of cylinder 11 and the sorting inclined plate 13. Multiple sorting inclined throwing mechanisms 1 are arranged side-by-side on the throwing side of the coal conveyor, with a distance of 1-5 mm between the sorting inclined plates 13. The height and position of the sorting inclined plates 13 of the sorting inclined throwing mechanism 1 are adjustable.
[0029] The guide mechanism 12 is arranged in pairs on both sides of the cylinder 11. The guide mechanism 12 includes a guide cylinder 121 and a guide rod 122. The guide rod 122 is located in the guide cylinder 121. The guide cylinder 121 is fixed on the frame. The top of the guide rod 122 is provided with a fixing inclined plate. The fixing inclined plate has a hole to fix the rear part of the sorting inclined plate 13.
[0030] The guiding mechanism provides guiding constraints for the lifting and lowering of the sorting ramp 13, preventing deformation of the cylinder structure after long-term and frequent impacts, and can stably and continuously provide good directional and lateral force constraints for the extension and retraction of the cylinder.
[0031] The operating procedure of this device is as follows: When material arrives from the coal conveyor, if the identification device recognizes the material as coal, the cylinder does not operate, allowing the coal to pass through from the front and enter the clean coal transfer mechanism. When the identification device recognizes the material as coal gangue, the cylinder extends, causing the coal gangue to fall onto the extended sorting inclined plate. After impact, the coal gangue is propelled away from the plate and falls into the rear coal gangue transfer mechanism. When the sorting inclined plate extends, the guide rod of the guiding mechanism also extends, ensuring that the cylinder rod is not affected by horizontal forces, thus maintaining its working efficiency.
[0032] This device uses coal lumps for screening when they are thrown, and is suitable for screening small coal lumps. It is also suitable for coal screening on assembly line conveyors, and its screening efficiency is higher than that of mechanical clamping.
[0033] The screening in this device adopts a top-throw method, which utilizes the motion curve of the thrown coal blocks to achieve collision and change the motion path, resulting in high screening efficiency.
Claims
1. A coal gangue sorting device, comprising a coal conveyor, a clean coal transfer mechanism, and a coal gangue transfer mechanism, characterized in that, The clean coal transfer mechanism and the gangue transfer mechanism are set on the throwing side of the coal conveyor, and the clean coal transfer mechanism is located on the parabolic line of the coal conveyor's feeding descent. The gangue transfer mechanism is located at the far end of the clean coal transfer mechanism. A sorting inclined throwing mechanism (1) is set inside the clean coal transfer mechanism. The sorting inclined throwing mechanism (1) includes a cylinder (11), a guide mechanism (12), and a sorting inclined plate (13). The cylinder (11) and the guide wire mechanism are set vertically. The sorting inclined plate (13) is set at the top of the piston rod of the cylinder (11). The top of the guide rod (122) of the guide mechanism (12) is connected to the sorting inclined plate (13). The sorting inclined plate (13) is inclined toward the gangue transfer mechanism.
2. The coal gangue sorting device according to claim 1, characterized in that, The bottom of the cylinder (11) is hinged to the frame of the sorting and throwing mechanism (1), and the bottom of the cylinder (11) is fixed at a fixed distance from the feeding test frame of the coal conveyor.
3. The coal gangue sorting device according to claim 1, characterized in that, The guide mechanism (12) is arranged in pairs on both sides of the cylinder (11). The guide mechanism (12) includes a guide cylinder (121) and a guide rod (122). The guide rod (122) is located in the guide cylinder (121). The guide cylinder (121) is fixed on the frame. The top of the guide rod (122) is provided with a fixing inclined plate. The fixing inclined plate has a hole for fixing the rear part of the sorting inclined plate (13).
4. The coal gangue sorting device according to claim 1, characterized in that, A buffer mechanism, which is a spring, is provided between the piston rod of the cylinder (11) and the sorting ramp (13).
5. The coal gangue sorting device according to claim 3, characterized in that, The sorting inclined throwing mechanism (1) consists of multiple units, which are arranged side by side on the throwing side of the coal conveyor, with a distance of 1-5mm between the sorting inclined plates (13).
6. The coal gangue sorting device according to claim 1, characterized in that, The height and position of the sorting ramp (13) of the sorting inclined throwing mechanism (1) can be adjusted.