Automatic control hydraulic crushed coal screening device

Abstract

An automatic control hydraulic crushed coal screening device comprises a cast iron frame used for supporting the whole device, a cast iron sleeve is welded to the upper portion of the cast iron frame and used for fixing a piston rod set and an oil cylinder, the cast iron sleeve and a coaling cast iron sleeve are located on the same vertical line, and the coaling cast iron sleeve is placed on an iron plate. The iron plate is placed on an iron partition plate with a circular hole inside, and the iron partition plate is communicated with a multi-layer vibrating screen classifier through a dustproof cloth cylinder. A machine base is arranged at the bottom of the multi-layer vibration screening machine. A vibration motor is arranged between the bottom of the multi-layer vibration screening machine and the machine base, a plurality of springs are arranged around the vibration motor and between the bottom of the multi-layer vibration screening machine and the machine base, and the springs are symmetrically and evenly distributed. The coal crusher has the characteristics of crushing coal briquettes and synchronously screening crushed particles, and can achieve the purposes of efficient, accurate and safe coal crushing and size grading and optimization of a laboratory coal crushing operation process.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal production and processing, and particularly relates to an automatically controlled hydraulic coal crushing and screening device. Background Art

[0002] Traditional laboratory coal crushing may rely on manual operations, such as using tools like hammers and mortars for crushing, and then using sieves for particle size screening. This kind of manual operation requires a large amount of manual time and energy input. The operation process is cumbersome, with low efficiency, increasing the time cost of experiments, and restricting the scale and quantity of experiments. Moreover, it is difficult to ensure uniform crushing of coal blocks, resulting in inaccurate experimental results. Manual operations may pose safety hazards. Especially during high-intensity manual operations, such as when using a hammer to crush coal blocks, operators are prone to injury, or accidents such as cuts may occur during the coal screening process due to aging equipment. Summary of the Utility Model

[0003] In order to overcome the above technical problems, the purpose of the utility model is to provide an automatically controlled hydraulic coal crushing and screening device, which has the characteristics of crushing coal blocks and synchronously screening the crushed particles, and can achieve the purposes of efficient, precise and safe coal crushing, particle size grading, and optimizing the operation process of laboratory coal crushing.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An automatically controlled hydraulic coal crushing and screening device includes a cast iron frame 3, which is used to support the whole device. A cast iron sleeve 2 is welded above the cast iron frame 3 for fixing the piston rod group and the oil cylinder 1. The cast iron sleeve 2 and the coal loading cast iron sleeve 4 are on the same vertical line. The coal loading cast iron sleeve 4 is placed on an iron plate 5, and the iron plate 5 is placed on an iron partition 6 with a circular hole 7 dug inside. The iron partition 6 is connected to a multi-layer vibrating screen through a dust-proof cloth tube 8.

[0006] The piston rod group and the oil cylinder 1 include a main shaft and a sealing ring. The main shaft and the sealing ring are arranged on the oil cylinder, and the main shaft is slidably connected to the inside of the oil cylinder.

[0007] One end of the high-pressure oil pipe is connected to the oil cylinder through a quick connector, and the other end of the high-pressure oil pipe is connected to an electric pump station 20. The electric pump station 20 includes an oil tank, on which a pressure gauge and a hydraulic oil pump are arranged. The electric pump station 20 is connected to a remote control board 21, and the remote control board 21 controls the switch of the electric pump station 20.

[0008] The piston rod group and the oil cylinder 1 (including the main shaft and the sealing ring), the quick connector, the high-pressure oil pipe, the electric pump station 20 (including the oil tank composed of a pressure gauge and a hydraulic oil pump) and the remote control board 21 together form an electric hydraulic jack.

[0009] The multi-layer vibrating screen includes a cylinder body, a feed inlet 9 at the top of the cylinder body. Inside the cylinder body at the lower end of the feed inlet 9, a first screen 10, a second screen 12, and a third screen 14 are arranged in sequence from top to bottom. A large-particle-size discharge port 11 is opened on the cylinder body at the position of the first screen 10, a medium-particle-size discharge port 13 is opened on the cylinder body at the position of the second screen 12, and a small-particle-size discharge port 15 is opened on the cylinder body at the position of the third screen 14.

[0010] A machine base 18 is provided at the bottom of the multi-layer vibrating screen.

[0011] A vibration motor 17 is provided between the bottom of the multi-layer vibrating screen and the machine base 18, and a plurality of springs 16 are provided between the bottom of the multi-layer vibrating screen and the machine base 18 around the vibration motor 17. The springs 16 are symmetrically and evenly distributed.

[0012] The screen is fixed between the upper and lower screen frames through a beam ring. The shape of the screen mesh is round. A return material tray is installed below the screen. The return material tray is tightly connected to the upper screen frame through a beam ring. At the same time, the beam ring fixes the lower screen frame and the upper screen frame together to form a stable overall structure.

[0013] Advantages of the present utility model.

[0014] The present utility model uses a cast iron frame as the overall support structure, which has high strength and stability, can effectively support the entire device, and ensure operation safety.

[0015] The present utility model uses an electric hydraulic jack to apply pressure to crush coal blocks. Compared with traditional manual operation, it is more convenient and fast, reduces the labor intensity of operators, and improves work efficiency. A vibrating screen is introduced for screening the crushed coal, which can divide the crushed coal into three different particle sizes: large, medium, and small. The design of this multi-layer screen makes the screening effect more accurate and can meet the use requirements of coal with different particle sizes. The device is equipped with a hydraulic oil pump and a remote control board, which can realize automatic control of the hydraulic jack. This kind of automatic control can improve the accuracy and stability of operation, and reduce the risk of operation errors.

[0016] The layout of each functional component is reasonable, which is convenient for operation and maintenance, reduces the labor intensity of operators, reduces the risk of operation errors, and improves work efficiency. The innovation lies in the comprehensive consideration in the overall design, making the device have efficient, convenient, and accurate operation performance, and at the same time improving safety and being able to meet the needs of coal crushing and screening in the laboratory. Description of the drawings

[0017] Figure 1 It is a schematic structural diagram of the present utility model.

[0018] Figure 2 It is a schematic connection diagram of the electric hydraulic jack components.

[0019] Figure 3 is a multi-layer vibrating screen.

[0020] Figure 4 is a schematic diagram of the screen structure. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figure 1 shown, an automatically controlled hydraulic coal crushing and screening device includes a cast iron frame 3, which is used to support the entire device. A cast iron sleeve 2 is welded above the cast iron frame 3 and is used to fix the piston rod group and the oil cylinder 1. The cast iron sleeve 2 and the coal loading cast iron sleeve 4 are on the same vertical line. The coal loading cast iron sleeve 4 is placed on an iron plate 5, and the iron plate 5 is placed on an iron partition 6 with an inner dug circular hole 7. The iron partition 6 is connected to a multi-layer vibrating screen through a dust-proof cloth tube 8.

[0023] The piston rod group and the oil cylinder 1 include a main shaft and a sealing ring. The main shaft and the sealing ring are arranged on the oil cylinder, and the main shaft is slidably connected to the inside of the oil cylinder.

[0024] One end of the high-pressure oil pipe is connected to the oil cylinder through a quick connector, and the other end of the high-pressure oil pipe is connected to an electric pump station 20. The electric pump station 20 includes an oil tank, on which a pressure gauge and a hydraulic oil pump are provided. The electric pump station 20 is connected to a remote control board 21, and the remote control board 21 controls the switch of the electric pump station 20.

[0025] The multi-layer vibrating screen includes a cylinder body. At the feed inlet 9 at the top of the cylinder body, a first screen 10, a second screen 12, and a third screen 14 are arranged in sequence from top to bottom inside the cylinder body below the feed inlet 9. A large particle size discharge port 11 is opened on the cylinder body below the first screen 10, a medium particle size discharge port 13 is opened on the cylinder body below the second screen 12, and a small particle size discharge port 15 is opened on the cylinder body below the third screen 14.

[0026] A machine base 18 is provided at the bottom of the multi-layer vibrating screen.

[0027] A vibration motor 17 is provided between the bottom of the multi-layer vibrating screen and the machine base 18, and a plurality of springs 16 are provided between the bottom of the multi-layer vibrating screen and the machine base 18 around the vibration motor 17. The springs 16 are symmetrically and evenly distributed.

[0028] The screen is fixed between the upper and lower screen frames through a collar. The shape of the screen holes is round. A return material tray is installed below the screen. The return material tray is tightly connected to the upper screen frame through a collar. At the same time, the collar fixes the lower screen frame and the upper screen frame together to form a stable overall structure.

[0029] For the multi-layer vibrating screen, after the coal block is crushed, the iron plate 5 is pulled open, and the crushed coal falls into the feed inlet 9 through the circular hole 7 and the dust-proof cloth tube 8. Under the action of the vibrating motor 17, the springs 16, and the screen one 10, the screen two 12, and the screen three 14, the crushed coal is screened into three different particle sizes of large, medium, and small, and is discharged through the large particle size discharge port 11, the medium particle size discharge port 13, and the small particle size discharge port 15. The machine base 18 is placed at the bottom of the screen. The large particle size discharge port 11 is located on the side of the upper frame, the medium particle size discharge port 13 is located on the side of the middle frame, and the small particle size discharge port 15 is located on the side of the bottom frame (see Figure 3 ), and the position of the discharge port can be changed by rotating the screen frame.

[0030] The vibrating motor 17 is installed at the lower part of the cast iron frame 3 through the machine base 18, and the vibrating motor 17 is firmly fixed on the screen frame through a fixed bracket. One end of the spring 16 is fixed on the bottom frame, and the other end is fixed on the support base (see Figure 3 ), which are symmetrically and evenly distributed, and the position and quantity match the installation position of the vibrating motor. The screen is fixed between two screen frames through a collar (see Figure 4 ), and is arranged in the order from thick to thin. The coarser screen is on the upper layer, and the finer screen is on the lower layer.

[0031] The screen is made of stainless steel material, the shape of the screen holes is round, and the aperture can be replaced according to the on-site needs. A return material tray is installed below the screen (see Figure 4 ), and its aperture is larger than that of the upper screen, which is used to support the screen and make the material evenly distributed. A return material tray is installed below the screen. The return material tray is tightly connected to the upper screen frame through a collar. At the same time, the collar fixes the lower screen frame and the upper screen frame together to form a stable overall structure.

[0032] The support base 18 is fixed at the bottom of the cast iron frame 3 and plays a supporting role.

[0033] The working principle of the present utility model:

[0034] This device can be used when tests on crushed coal of different particle sizes are required. The operator places the coal block to be crushed in the coal-loading cast iron sleeve 4, and then controls the hydraulic oil pump, the piston rod group, and the oil cylinder 1 by operating the remote control board 21 to make the piston rod group press down to apply pressure and crush the coal block.

[0035] After crushing is completed, pull open the iron plate 5, and the crushed coal will fall through the circular holes 7 on the iron plate 5 into the feed inlet 9 of the vibrating screen. The vibrating screen screens the crushed coal on the screen through the action of the vibrating motor 17 and the spring 16.

[0036] The crushed coal with different particle sizes will be divided into three particle sizes, large, medium, and small, through different apertures of the screen, and discharged through the large particle size discharge port 11, the medium particle size discharge port 13, and the small particle size discharge port 15.

[0037] According to needs, the operator can set corresponding collection containers at the large, medium, and small particle size discharge ports to collect coal products with different particle sizes. The collected products can be used for further experimental research or other applications.

Claims

1. An automatic controlled hydraulic coal crushing and screening device, characterized in that: The invention comprises a cast iron frame (3), the cast iron frame (3) is used to support the whole device, a cast iron sleeve (2) is welded on the top of the cast iron frame (3), and is used to fix the piston rod group and the oil cylinder (1), the cast iron sleeve (2) and the coal-loading cast iron sleeve (4) are on the same vertical line, the coal-loading cast iron sleeve (4) is placed on the iron plate (5), the iron plate (5) is placed on the iron partition (6) with a circular hole (7) hollowed out inside, and the iron partition (6) is connected to the multi-layer vibrating screening machine through a dustproof cloth tube (8); A machine base (18) is arranged at the bottom of the multi-layer vibrating screening machine; A vibration motor (17) is arranged between the bottom of the multi-layer vibration screening machine and a machine base (18), and a plurality of springs (16) are arranged around the vibration motor (17) and between the bottom of the multi-layer vibration screening machine and the machine base (18), wherein the springs (16) are symmetrically and evenly distributed.

2. The automatic controlled hydraulic coal crushing and screening device according to claim 1 is characterized in that: The piston rod assembly and the oil cylinder (1) comprise a main shaft and a sealing ring, the main shaft and the sealing ring being arranged on the oil cylinder, and the main shaft being slidably connected to the inside of the oil cylinder.

3. The automatic controlled hydraulic coal crushing and screening device according to claim 2 is characterized in that: The oil cylinder is connected to one end of a high-pressure oil pipe via a quick connector, and the other end of the high-pressure oil pipe is connected to an electric pump station (20). The electric pump station (20) comprises an oil tank, on which a pressure gauge and a hydraulic oil pump are arranged. The electric pump station (20) is connected to a remote control panel (21), and the remote control panel (21) controls the switch of the electric pump station (20).

4. The automatic controlled hydraulic coal crushing and screening device according to claim 1 is characterized in that: The multi-layer vibrating screening machine comprises a cylinder, a feed inlet (9) at the top of the cylinder, and a screen 1 (10), a screen 2 (12), and a screen 3 (14) arranged in sequence from top to bottom inside the cylinder below the feed inlet (9); a large particle size discharge port (11) is provided on the cylinder at the screen 1 (10), a medium particle size discharge port (13) is provided on the cylinder at the screen 2 (12), and a small particle size discharge port (15) is provided on the cylinder at the screen 3 (14).

5. The automatic controlled hydraulic coal crushing and screening device according to claim 4 is characterized in that: The screen is fixed between the upper and lower screen frames by a clamping ring. The screen mesh is in the shape of a circular hole. A return material tray is installed under the screen. The return material tray is tightly connected to the upper screen frame by the clamping ring. At the same time, the clamping ring fixes the lower screen frame and the upper screen frame together to form a stable overall structure.

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