Improved fire coal sampling machine
By setting up a sealing cover and an outer shield in the coal-fired sampler and using a filter screen to remove debris, the problem of dust pollution during coal-fired sampling is solved, and the reliability of the equipment and the purity of the sample are improved.
Patent Information
- Application Number
- CN202421134626.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-05-23
AI Technical Summary
Existing coal-fired samplers produce a large amount of dust during the sampling process, resulting in large-scale pollution. Existing measures such as installing dust curtains, drawers, seals, etc. cannot effectively solve the problem.
By setting up a sealing cover and an outer shield in the coal sampler, seal the outside of the belt to prevent dust from falling from falling from the tail of the belt and the gaps on both sides of the belt to the ground, and through a filter screen to remove large pieces of debris in the coal powder to ensure the purity of the sample.
Effectively prevent dust pollution, improve the reliability of the sampler, reduce cleaning workload, and ensure the purity of the sample and sampling accuracy through the filter.
Smart Images
Figure CN222761892U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal sampling, in particular to an improved coal sampling machine. Background Art
[0002] A coal sampler is a device used to collect coal samples, which can help workers better evaluate the quality and composition of coal. This type of sampler usually includes a sampler, a feeder, a crusher, a reducer, a sample collector, and a discarded sample return device.
[0003] When the existing coal sampling machine is sampling, the coal falls from the coal drop tube onto the feeder belt, is crushed by the crusher, and finally is transported from the tail of the feeder belt for sampling. However, after the coal is crushed, a large amount of dust will be formed inside the guide chute. The dust will eventually fall to the ground from the tail of the feeder belt and the gaps on both sides of the belt, and then enter the air, causing large-scale pollution.
[0004] To address this issue, some sampling machines have taken a number of measures, such as installing dust curtains, drawers, and seals, but the dust removal effects are poor and cannot achieve the expected results. Utility Model Content
[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide an improved coal sampling machine, which seals the outer side of the belt through a sealing cover and an outer protective cover to prevent dust from eventually falling to the ground from the gaps at the tail of the belt and on both sides of the belt, and then entering the air to cause large-scale pollution, and to screen out large pieces or woven bag debris in the coal powder through a filter to ensure the purity of the sample, until the dust is collected in the front section of the reducer at the lower end of the outer protective cover, and enters the guide trough of the conveyor, is transported by the conveyor belt, and then is sampled by the reducer to ensure the accuracy of the sampling, thereby achieving a significant improvement in the on-site environment of the sampling machine, further reducing the work of cleaning personnel, and greatly improving the reliability of the equipment; the frame can be quickly disassembled and installed through the set fixing mechanism, which is convenient for handling debris on the filter and improving the practicality of the equipment.
[0006] The utility model also provides the above-mentioned improved coal sampling machine, including: a blanking barrel, a sealing cover is fixedly connected to the lower surface of the blanking barrel, a belt is arranged inside the outer surface of the sealing cover, a discharge pipe is fixedly connected to the lower surface of the sealing cover, an outer protective cover is fixedly connected to the lower surface of the sealing cover, a conveyor is arranged at the bottom end of the outer protective cover, a conveyor belt is arranged inside the conveyor, a frame is arranged inside the outer protective cover, a filter is fixedly connected to the side wall of the frame, a fixing mechanism is arranged on the outer surface of the outer protective cover, a reducer is arranged on the upper surface of the conveyor, and a collection box is fixedly connected to the discharge port of the reducer.
[0007] According to the improved coal sampling machine, the outer surface of the sealing cover is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft, the end of the rotating shaft away from the motor is fixedly connected to a rotating drum, and the outer surface of the rotating drum is rollingly connected to a belt.
[0008] According to the improved coal sampling machine, a first crusher is arranged at the lower end of the discharge pipe, an output end of the first crusher is fixedly connected to a second crusher, and an output end of the second crusher is fixedly connected to a conveyor.
[0009] According to the improved coal sampling machine, the fixing mechanism includes a fixing frame, a pull rod, a convex ring and a spring. The outer surface of the outer protective cover is fixedly connected to the fixing frame, the interior of the fixing frame is slidably connected to the pull rod, the outer surface of the pull rod is fixedly connected to the convex ring, the side surface of the convex ring is fixedly connected to the spring, the other end of the spring is fixedly connected to the fixing frame, and one end of the pull rod passes through the outer protective cover and extends into the interior of the frame.
[0010] According to the improved coal-fired sampling machine, the material drop opening of the outer shield is located above the conveyor belt, and the material inlet of the reducer is located behind the material drop opening of the outer shield.
[0011] According to the improved coal sampling machine, an observation hole is provided on the side surface of the conveyor.
[0012] According to the improved coal sampling machine, the outer surface of the collecting box is rotatably connected to a box door, and the outer surface of the box door is fixedly connected to a handle.
[0013] According to the improved coal sampling machine, a pull plate is slidably connected to the side inner wall of the collecting box, and a side plate is fixedly connected to the side surface of the pull plate.
[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0016] Figure 1 This is a schematic diagram of the overall structure of the improved coal-fired sampling machine of the utility model;
[0017] Figure 2 It is a schematic diagram of the internal structure of the sealing cover and the outer protective cover of the improved coal-fired sampling machine of the utility model;
[0018] Figure 3 This is a schematic diagram of the connection between the outer shield and the filter screen of the improved coal-fired sampling machine of the utility model;
[0019] Figure 4 This is a schematic diagram of the internal structure of the collection box of the improved coal-fired sampling machine of the utility model.
[0020] Legend:
[0021] 1. Discharging barrel; 2. Sealing cover; 3. Motor; 4. Rotating shaft; 5. Rotating drum; 6. Belt; 7. Outer shield; 8. Frame; 9. Filter; 10. Fixed frame; 11. Pull rod; 12. Conveyor ring; 13. Spring; 14. Discharging pipe; 15. First crusher; 16. Second crusher; 17. Conveyor; 18. Reducer; 19. Observation hole; 20. Collecting box; 21. Box door; 22. Handle; 23. Pull plate; 24. Side plate. DETAILED DESCRIPTION
[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0023] Reference Figure 1-4 The improved coal sampling machine of the utility model embodiment comprises: a blanking barrel 1, a sealing cover 2 is fixedly connected to the lower surface of the blanking barrel 1, a belt 6 is arranged inside the outer surface of the sealing cover 2, a motor 3 is fixedly connected to the outer surface of the sealing cover 2, a rotating shaft 4 is fixedly connected to the output end of the motor 3, a rotating drum 5 is fixedly connected to the end of the rotating shaft 4 away from the motor 3, the outer surface of the rotating drum 5 is rollingly connected to the belt 6, a discharge pipe 14 is fixedly connected to the lower surface of the sealing cover 2, a first crusher 15 is arranged at the lower end of the discharge pipe 14, a second crusher 16 is fixedly connected to the output end of the first crusher 15, and the output end of the second crusher 16 is fixedly connected to the conveyor 17, through the sampling head The coal is collected from the coal conveyor line and falls into the blanking barrel 1. The sampling head and the coal conveyor line are not drawn in the figure. They are located above the blanking barrel 1 and are used for sampling. The coal falls from the blanking barrel 1 onto the belt 6. The motor 3 drives the rotating shaft 4 to rotate, so that the rotating drum 5 drives the belt 6 for transmission. The coal on the belt 6 is transported to the discharge pipe 14 and enters the first crusher 15. The coal is crushed for the first time, and the large pieces of coal are broken into small pieces. The coal after the first crushing is then transported to the second crusher 16 for secondary crushing to ensure the crushing effect. Finally, the crushed coal falls onto the conveyor belt of the conveyor 17, and then is transported upward until it enters the reducer 18 for final sampling.
[0024] The lower surface of the sealing cover 2 is fixedly connected with an outer protective cover 7, a conveyor 17 is arranged at the bottom end of the outer protective cover 7, a conveyor belt is arranged inside the conveyor 17, a frame 8 is arranged inside the outer protective cover 7, a filter screen 9 is fixedly connected to the side wall of the frame 8, when the dust falls, the large pieces or woven bag debris in the coal powder are screened out through the filter screen 9 to ensure the purity of the sample, a reducer 18 is arranged on the upper surface of the conveyor 17, a collecting box 20 is fixedly connected to the discharge port of the reducer 18, the blanking port of the outer protective cover 7 is located above the conveyor belt, and the feeding port of the reducer 18 is located at the blanking port of the outer protective cover 7 At the rear, an observation hole 19 is provided on the side surface of the conveyor 17, and the belt 6 is sealed by the sealing cover 2, thereby sealing the coal powder generated when the coal falls and is crushed, and the dust in the guide trough at the tail of the belt 6 falls from the outer protective cover 7 until it is collected in the front section of the reducer 18 at the lower end of the outer protective cover 7, and enters the guide trough of the conveyor 17, is transported by the conveyor belt, and then is sampled by the reducer 18, and the excess coal continues to be transported with the conveyor belt, thereby greatly improving the on-site environment of the sampling machine, further reducing the work of cleaning personnel, and greatly improving the reliability of the equipment.
[0025] The outer surface of the outer shield 7 is provided with a fixing mechanism, which includes a fixing frame 10, a pull rod 11, a convex ring 12 and a spring 13. The outer surface of the outer shield 7 is fixedly connected to the fixing frame 10, and the interior of the fixing frame 10 is slidably connected to the pull rod 11. The outer surface of the pull rod 11 is fixedly connected to the convex ring 12, and the side surface of the convex ring 12 is fixedly connected to the spring 13. The other end of the spring 13 is fixedly connected to the fixing frame 10. One end of the pull rod 11 passes through the outer shield 7 and extends into the interior of the frame 8. The fixing mechanism can ensure that the filter 9 remains stable when the machine body is working, and avoid vibration that causes the frame 8 to shift, affecting the filtering effect. When it is necessary to deal with debris on the filter 9, pull the pull rod 11 outward to disengage the pull rod 11 from the frame 8, and then pull the frame 8 out of the outer shield 7. Then, the debris on the filter 9 is cleaned and pushed back into the interior of the outer shield 7. The operation is simple and convenient.
[0026] The outer surface of the collecting box 20 is rotatably connected to a box door 21, the outer surface of the box door 21 is fixedly connected to a handle 22, the side inner wall of the collecting box 20 is slidably connected to a pull plate 23, and the side surface of the pull plate 23 is fixedly connected to a side plate 24. The collecting box 20 is used to collect samples discharged from the blanking port of the reducer 18, and the samples will fall on the pull plate 23. When the sample needs to be taken, the box door 21 is opened by the handle 22, and then the pull plate 23 is pulled outward.
[0027] Working principle: When the machine body is sampling, the coal powder enters the outer protective cover 7 from the material guide trough at the tail end of the belt 6 and falls down, and the large pieces or woven bag debris in the coal powder are screened out by the filter 9 to ensure the purity of the sample, until the dust is collected in the front section of the reducer 18 at the lower end of the outer protective cover 7, and enters the material guide trough of the conveyor 17, is transported by the conveyor belt, and then is sampled by the reducer 18, thereby achieving a significant improvement in the on-site environment of the sampling machine, further reducing the work of cleaning personnel, and greatly improving the reliability of the equipment.
[0028] The sampling head collects the coal sample on the No. 3 belt into the coal drop tube, and it falls onto the No. 1 feeder belt inside the guide chute. The dust in the guide chute is collected from the guide chute at the tail of the No. 1 feeder belt to the front section of the reducer at the lower end of the outer shield, and finally enters the No. 2 feeder belt guide chute and is transported by the belt.
[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. Improved coal-fired sampling machine, characterized in that: include: A blanking barrel (1) is provided, wherein a sealing cover (2) is fixedly connected to the lower surface of the blanking barrel (1), a belt (6) is arranged inside the outer surface of the sealing cover (2), a discharge pipe (14) is fixedly connected to the lower surface of the sealing cover (2), an outer protective cover (7) is fixedly connected to the lower surface of the sealing cover (2), a conveyor (17) is arranged at the bottom end of the outer protective cover (7), a conveyor belt is arranged inside the conveyor (17), a frame (8) is arranged inside the outer protective cover (7), a filter screen (9) is fixedly connected to the side wall of the frame (8), a fixing mechanism is arranged on the outer surface of the outer protective cover (7), a reducer (18) is arranged on the upper surface of the conveyor (17), and a collection box (20) is fixedly connected to the discharge port of the reducer (18).
2. The improved coal sampling machine according to claim 1 is characterized in that: The outer surface of the sealing cover (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a rotating shaft (4), the end of the rotating shaft (4) away from the motor (3) is fixedly connected to a rotating drum (5), and the outer surface of the rotating drum (5) is rollingly connected to a belt (6).
3. The improved coal sampling machine according to claim 1 is characterized in that: A first crusher (15) is provided at the lower end of the discharge pipe (14); an output end of the first crusher (15) is fixedly connected to a second crusher (16); and an output end of the second crusher (16) is fixedly connected to a conveyor (17).
4. The improved coal sampling machine according to claim 1 is characterized in that: The fixing mechanism comprises a fixing frame (10), a pull rod (11), a convex ring (12) and a spring (13); the outer surface of the outer shield (7) is fixedly connected to the fixing frame (10); the interior of the fixing frame (10) is slidably connected to the pull rod (11); the outer surface of the pull rod (11) is fixedly connected to the convex ring (12); the side surface of the convex ring (12) is fixedly connected to the spring (13); the other end of the spring (13) is fixedly connected to the fixing frame (10); and one end of the pull rod (11) passes through the outer shield (7) and extends into the interior of the frame (8).
5. The improved coal sampling machine according to claim 1 is characterized in that: The material drop opening of the outer shield (7) is located above the conveyor belt, and the material inlet of the reducer (18) is located behind the material drop opening of the outer shield (7).
6. The improved coal sampling machine according to claim 1 is characterized in that: The side surface of the conveyor (17) is provided with an observation hole (19).
7. The improved coal sampling machine according to claim 1 is characterized in that: The outer surface of the collection box (20) is rotatably connected to a box door (21), and the outer surface of the box door (21) is fixedly connected to a handle (22).
8. The improved coal sampling machine according to claim 7, characterized in that: A pull plate (23) is slidably connected to the inner side wall of the collection box (20), and a side plate (24) is fixedly connected to the side surface of the pull plate (23).