Automatically-controlled coal blending device

Abstract

The utility model discloses an automatic control coal blending device which comprises a machine frame and a material mixing bin installed on the left side of the machine frame, the upper end of the material mixing bin is connected with a coal blending mechanism, and a coal dressing mechanism is arranged at the bottom of the material mixing bin. The coal blending mechanism comprises a set of hoppers, a set of conveying pipelines, a set of conveying motors, a set of conveying shafts, a plurality of conveying spiral blades, a set of servo air cylinders, a set of baffles and an electronic weighing sensor. The coal dressing mechanism comprises a set of mounting frames, a set of rotating motors, a plurality of screening rolling shafts and a coal dressing bin. The coal preparation device has the beneficial effects that a group of conveying pipelines adopt a conveying spiral mode and are matched with the electronic weighing sensor at the bottom of the mixing bin, so that quantitative coal blending can be automatically controlled, the spiral mixing blades can mix the coal after blending, and the coal preparation mechanism adopts a plurality of screening rollers to screen the coal, so that the coal preparation efficiency is improved. And the screened coal is discharged from the right side, and the coal with the small particle size falls into the coal selecting bin and is convenient to recycle and use.

Description

Technical Field

[0001] The utility model relates to the technical field of coal blending equipment, in particular to an automatic control coal blending device. Background Art

[0002] Coal blending equipment is a mechanical device used for coal distribution and delivery. Its primary function is to transport coal from storage or stockpiling areas to where it's needed. Mobile coal blenders are highly efficient coal processing equipment used to blend different types of coal in specific proportions to improve coal quality and calorific value, and to meet diverse combustion requirements.

[0003] The existing patent application number is CN 202420720443.7, which discloses an automatic batching device for a coal bunker. Using a pressure sensor and a solenoid valve, the device ensures that the coal in the transfer mechanism meets the required weight for distribution. The transfer mechanism then transfers the coal to a chamber within the distribution hopper, where it is automatically discharged through a rotating mechanism, achieving uniform weight batching of the coal. However, the batching process requires the coordination of multiple components, making the operation cumbersome. Furthermore, the device fails to effectively mix the batched coal, resulting in varying particle sizes and impacting subsequent use.

[0004] It should be noted that the above content falls within the technical knowledge of the inventor and does not necessarily constitute prior art. Utility Model Content

[0005] In view of the above defects, the utility model provides an automatic control coal blending device to solve the problem of automatic control coal blending.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An automated coal blending device comprises a frame and a mixing bin mounted on the left side of the frame, wherein the upper end of the mixing bin is connected to a coal blending mechanism, and the bottom of the mixing bin is provided with a coal sorting mechanism;

[0008] The coal blending mechanism includes a group of hoppers, a group of conveying pipes, a group of conveying motors, a group of conveying shafts, several conveying spiral blades, a group of servo cylinders, a group of baffles and electronic weighing sensors. A group of hoppers are installed on both sides of the upper end of the mixing bin, a group of conveying pipes are inserted at the bottom of a group of hoppers and are respectively connected with the mixing bin, a group of conveying motors are installed at the rear end of a group of conveying pipes, a group of conveying shafts are movably installed in a group of conveying pipes, and the rear ends are respectively connected to the corresponding rotating ends of the conveying motors, several conveying spiral blades are evenly installed on a group of conveying shafts, a group of servo cylinders are installed at the front end of a group of conveying pipes, and the telescopic ends are respectively movably inserted in the corresponding conveying pipes, a group of baffles are installed on the telescopic ends of a group of servo cylinders, and the electronic weighing sensor is installed at the center of the bottom of the mixing bin.

[0009] Furthermore, the coal preparation mechanism includes a group of mounting frames, a group of rotating motors, several screening rollers and a coal preparation bin, a group of mounting frames are obliquely installed at the bottom of the frame and are located below the mixing bin, a group of rotating motors are installed at the front end of a group of mounting frames, several screening rollers are movably installed in a group of mounting frames, and the rotating ends of a group of rotating motors are respectively connected to the corresponding screening rollers, and the coal preparation bin is installed at the bottom of a group of mounting frames.

[0010] Furthermore, the rear ends of adjacent groups of screening rollers are connected through a transmission chain.

[0011] Furthermore, a group of mounting frames are connected by a material guide plate.

[0012] Furthermore, a mixing motor is installed at the upper end of the mixing bin, a mixing shaft is installed at the rotating end of the mixing motor, and spiral mixing blades are installed on the mixing shaft.

[0013] Furthermore, a discharge cylinder is movably installed at the front end of the mixing bin, and a group of relative discharge baffles are hinged on both sides of the bottom of the mixing bin, and the telescopic end of the discharge cylinder is movably hinged to the right discharge baffle, and the two ends of a group of relative discharge baffles are respectively hinged by connecting rods.

[0014] The utility model provides an automatic control coal blending device with the following beneficial effects: a coal blending mechanism is connected to the upper end of a mixing bin, high-quality coal and low-quality coal are first loaded into a group of hoppers by a forklift, a group of conveying pipes adopts a conveying spiral method, and cooperates with an electronic weighing sensor at the bottom of the mixing bin to realize automatic control of quantitative coal blending, and the spiral mixing blades can mix the blended coal;

[0015] The unloading cylinder drives a set of unloading baffles to open automatically, and the mixed coal falls into the mounting frame on the left. The coal preparation mechanism uses several screening rollers to screen the coal. The screened coal is discharged through the right side, and the coal with smaller particle size falls into the coal preparation bin for easy recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of an automatic controlled coal blending device described in the present utility model.

[0017] Figure 2 This is a schematic diagram of the coal blending mechanism of the utility model.

[0018] Figure 3 This is a cross-sectional view of the coal preparation bin described in the present utility model.

[0019] Figure 4 It is a top view of the coal preparation mechanism of the utility model.

[0020] In the figure: 1. Frame; 2. Mixing bin; 3. Hopper; 4. Conveying pipe; 5. Conveying motor; 6. Conveying shaft; 7. Conveying spiral blade; 8. Servo cylinder; 9. Baffle; 10. Electronic weighing sensor; 11. Mounting frame; 12. Rotating motor; 13. Screening roller; 14. Coal preparation bin; 15. Transmission chain; 16. Guide plate; 17. Mixing motor; 18. Mixing shaft; 19. Spiral mixing blade; 20. Discharging cylinder; 21. Baffle; 22. Connecting rod. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1-4As shown: an automatic control coal blending device, including a frame 1 and a mixing bin 2 installed on the left side of the frame 1, the upper end of the mixing bin 2 is connected to a coal blending mechanism, and the bottom of the mixing bin 2 is provided with a coal selection mechanism; the coal blending mechanism includes a group of hoppers 3, a group of conveying pipes 4, a group of conveying motors 5, a group of conveying shafts 6, a number of conveying spiral blades 7, a group of servo cylinders 8, a group of baffles 9 and an electronic weighing sensor 10, a group of hoppers 3 are installed on both sides of the upper end of the mixing bin 2, a group of conveying pipes 4 are inserted at the bottom of a group of hoppers 3, and are respectively connected to the mixing bin 2, a group of conveying motors 5 are installed at the rear end of a group of conveying pipes 4, a group of conveying shafts 6 are movably installed in a group of conveying pipes 4, and the rear ends are respectively connected to the corresponding rotating ends of the conveying motors 5, a number of conveying spiral blades 7 are evenly installed on a group of conveying shafts 6, a group of servo cylinders 8 are installed at the front end of a group of conveying pipes 4, and the telescopic ends are respectively movably inserted in the corresponding conveying pipes 4, a group of baffles 9 are installed on the telescopic ends of a group of servo cylinders 8, and the electronic weighing sensor 10 is installed at the center of the bottom of the mixing bin 2 The coal preparation mechanism includes a group of mounting frames 11, a group of rotating motors 12, a number of screening rollers 13 and a coal preparation bin 14. A group of mounting frames 11 is tilted and installed at the bottom of the frame 1 and is located below the mixing bin 2. A group of rotating motors 12 is installed at the front end of a group of mounting frames 11. A number of screening rollers 13 are movably installed in a group of mounting frames 11, and the rotating ends of a group of rotating motors 12 are respectively connected to the corresponding screening rollers 13. The coal preparation bin 14 is installed at the bottom of a group of mounting frames 11; the rear end of an adjacent group of screening rollers 13 is connected to the rear end of the adjacent group of screening rollers 13. It is connected by a transmission chain 15; a group of mounting frames 11 are connected by a guide plate 16; a mixing motor 17 is installed at the upper end of the mixing bin 2, a mixing shaft 18 is installed at the rotating end of the mixing motor 17, and a spiral mixing blade 19 is installed on the mixing shaft 18; a discharge cylinder 20 is movably installed at the front end of the mixing bin 2, and a group of opposite discharge baffles 21 are hinged on both sides of the bottom of the mixing bin 2, and the telescopic end of the discharge cylinder 20 is movably hinged to the right discharge baffle 21, and the two ends of a group of opposite discharge baffles 21 are respectively hinged by connecting rods 22.

[0022] Working principle of this embodiment: The electrical equipment used in the device is controlled by an external controller. When in use, the operator first uses a forklift to load high-quality coal and low-quality coal into a group of hoppers 3 respectively;

[0023] When blending coal: a group of hoppers 3 are installed on both sides of the upper end of the mixing bin 2, a group of conveying pipes 4 are inserted at the bottom of a group of hoppers 3, and are respectively connected to the mixing bin 2, a group of conveying motors 5 are installed at the rear end of a group of conveying pipes 4, a group of conveying shafts 6 are movably installed in a group of conveying pipes 4 through fastening bearings, and the rear ends are respectively connected to the corresponding rotating ends of the conveying motors 5, a number of conveying spiral blades 7 are evenly installed on a group of conveying shafts 6, a group of servo cylinders 8 are installed at the front end of a group of conveying pipes 4, and the telescopic ends are respectively movably inserted in the corresponding conveying pipes 4, a The baffle 9 is installed on the telescopic end of a group of servo cylinders 8, the electronic weighing sensor 10 is installed at the bottom center of the mixing bin 2, the upper end of the mixing bin 2 is installed with a mixing motor 17, the rotating end of the mixing motor 17 is installed with a mixing shaft 18, and the mixing shaft 18 is installed with a spiral mixing blade 19. A discharge cylinder 20 is movably installed at the front end of the mixing bin 2, and a group of opposite discharge baffles 21 are hinged on both sides of the bottom of the mixing bin 2, and the telescopic end of the discharge cylinder 20 is movably hinged with the right discharge baffle 21, and the two ends of a group of opposite discharge baffles 21 are respectively hinged by connecting rods 22, such as Figure 1 and Figure 2 As shown, during coal blending, a group of hoppers 3 feed alternately. The servo cylinder 8 first drives the baffle 9 to open, and the conveying motor 5 drives several conveying spiral blades 7 on the conveying shaft 6 to deliver the coal to the mixing bin 2. In conjunction with the electronic weighing sensor 10 at the bottom of the mixing bin 2, automatic control of quantitative coal blending can be achieved. After the coal blending is completed, the baffle 9 is reset, and the mixing motor 17 drives the spiral mixing blades 19 through the mixing shaft 18 to mix the blended coal.

[0024] During coal preparation: a group of mounting frames 11 are tiltedly mounted at the bottom of the frame 1 and located below the mixing bin 2; a group of rotating motors 12 are mounted at the front end of the group of mounting frames 11; a number of screening rollers 13 are movably mounted in the group of mounting frames 11 through fastening bearings; and the rotating ends of the group of rotating motors 12 are respectively connected to the corresponding screening rollers 13; a coal preparation bin 14 is mounted at the bottom of the group of mounting frames 11; the rear ends of adjacent groups of screening rollers 13 are connected by a transmission chain 15; and a group of mounting frames 11 are connected by a guide plate 16, as shown in FIG. Figure 3 and Figure 4 As shown, a group of discharge ports are opened on both sides of the bottom of the mixing bin 2, and a protrusion is set at the center of the inner bottom. The telescopic end of the discharge cylinder 20 contracts, and cooperates with a group of connecting rods 22 to drive a group of relative discharge baffles 21 to rotate around the hinge point and automatically open. The mixed coal falls into the left mounting frame 11. The coal preparation mechanism adopts a rotating motor 12 to drive several screening rollers 13 to rotate and screen the coal. The screened coal is discharged through the right side, and the coal with smaller particle size falls into the coal preparation bin 14 for easy recycling.

[0025] The above technical solutions only reflect the preferred technical solutions of the present utility model. Any changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the scope of protection of the present utility model.

Claims

1. An automated coal blending device comprising a frame (1) and a mixing bin (2) mounted on the left side of the frame (1), characterized in that: The upper end of the mixing bin (2) is connected to a coal blending mechanism, and the bottom of the mixing bin (2) is provided with a coal sorting mechanism; The coal blending mechanism comprises a group of hoppers (3), a group of conveying pipes (4), a group of conveying motors (5), a group of conveying shafts (6), a plurality of conveying spiral blades (7), a group of servo cylinders (8), a group of baffles (9) and an electronic weighing sensor (10), wherein the group of hoppers (3) are installed on both sides of the upper end of the mixing bin (2), the group of conveying pipes (4) are inserted at the bottom of the group of hoppers (3) and are respectively connected with the mixing bin (2), the group of conveying motors (5) are installed at the rear end of the group of conveying pipes (4), the group of conveying shafts (6) are movably installed in the group of conveying pipes (4), and the rear ends are respectively connected to the corresponding rotating ends of the conveying motors (5), the plurality of conveying spiral blades (7) are evenly installed on the group of conveying shafts (6), the group of servo cylinders (8) are installed at the front end of the group of conveying pipes (4), and the telescopic ends are respectively movably inserted in the corresponding conveying pipes (4), the group of baffles (9) are installed on the telescopic ends of the group of servo cylinders (8), and the electronic weighing sensor (10) is installed at the center of the bottom of the mixing bin (2).

2. The automatic control coal blending device according to claim 1, characterized in that: The coal preparation mechanism comprises a group of mounting frames (11), a group of rotating motors (12), a plurality of screening rollers (13) and a coal preparation bin (14), wherein the group of mounting frames (11) is obliquely mounted at the bottom of the frame (1) and is located below the mixing bin (2), the group of rotating motors (12) is mounted at the front end of the group of mounting frames (11), the plurality of screening rollers (13) are movably mounted in the group of mounting frames (11), and the rotating ends of the group of rotating motors (12) are respectively connected to the corresponding screening rollers (13), and the coal preparation bin (14) is mounted at the bottom of the group of mounting frames (11).

3. The automatic control coal blending device according to claim 2, characterized in that: The rear ends of adjacent groups of screening rollers (13) are connected via a transmission chain (15).

4. The automatic control coal blending device according to claim 2, characterized in that: A group of mounting frames (11) are connected via a material guide plate (16).

5. The automatic control coal blending device according to claim 1, characterized in that: A mixing motor (17) is installed at the upper end of the mixing bin (2), a mixing shaft (18) is installed at the rotating end of the mixing motor (17), and a spiral mixing blade (19) is installed on the mixing shaft (18).

6. The automatic control coal blending device according to claim 1, characterized in that: A discharge cylinder (20) is movably mounted at the front end of the mixing bin (2), and a set of opposite discharge baffles (21) are hinged on both sides of the bottom of the mixing bin (2), and the telescopic end of the discharge cylinder (20) is movably hinged to the right discharge baffle (21), and both ends of the set of opposite discharge baffles (21) are hinged via connecting rods (22).

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