Sorting bed for wind power jigging dry coal separator

Abstract

The utility model belongs to the technical field of coal separation, and discloses a separation bed for a wind power jigging dry coal separator, which comprises a frame, a base, a lifting mechanism, a separation bed, a telescopic rod, a first spring, a dust cover, a purification mechanism, a hopper, a first discharge hopper and a second discharge hopper, and the right end of the base is connected with the right end of the top of the frame through a pin shaft. The lifting mechanism is fixedly connected to the left end of the upper surface of the frame, and the top of the lifting mechanism is connected with the left end of the base through a pin shaft. One end of the separation bed is connected to the right end of the base through a pin shaft, vibration motors are installed on the front side and the rear side of the separation bed correspondingly, and the separation bed vibrates for coal separation. The device has a gas purification function, prevents dust from polluting air, prevents raw material loss through dust collection, changes the gradient of the separation bed, can change the gradient of the separation bed according to the content of gangue, and improves the coal separation efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal preparation, in particular to a separation bed for a wind-jigging dry-process coal preparation machine. Background Art

[0002] Dry coal separation machines are mainly based on the different specific gravities of coal and gangue, and separate gangue and impurities from coal through vibrating screen separation or air flow separation. For example, the invention with application number 2006200242285 discloses a separation bed for a wind-powered jigging dry coal separation machine, which consists of a bed body, a vibrating motor, and an elastic component. The bed body consists of a screen plate and a screen frame, which are arranged at an angle and have an elastic sealing gasket on them; the vibrating motor is fixed to the bed body, and one end of the elastic component is hinged to the bed body, and the other end is hinged to the frame. As a coal separation machine with a shock-absorbing effect, it still has some defects in environmental protection and coal separation efficiency.

[0003] In order to allow the coal blocks to move on the bed, the bed needs to have a certain slope, and the size of the slope directly determines the movement speed of the coal blocks. The bed slope cannot be adjusted according to the proportion of gangue in the coal blocks, and the coal preparation efficiency is low. Moreover, coal powder and other materials in the coal blocks will be blown up by the wind and directly discharged without purification, which will pollute the air and is not environmentally friendly. Therefore, it is necessary to propose a sorting bed for a wind-powered jigging dry coal preparation machine with environmental protection function. Utility Model Content

[0004] In order to solve the problems in the above background technology that the bed inclination cannot be changed and the gas cannot be purified, the utility model provides a separation bed for a wind-powered jigging dry-process coal separator.

[0005] The utility model is realized in this way: a separation bed for a wind-powered jigging dry-process coal separation machine comprises a frame and a base, the right end of the base is connected to the right end of the top of the frame by a pin, and further comprises a lifting mechanism, a separation bed, a telescopic rod, a first spring, a dust cover, a purification mechanism, a hopper, a first discharge hopper and a second discharge hopper, the lifting mechanism is fixedly connected to the left end of the upper surface of the frame, and the top of the lifting mechanism is connected to the left end of the base by a pin; one end of the separation bed is connected to the right end of the base by a pin, vibration motors are installed on both sides of the separation bed to make the separation bed vibrate for coal separation, and a wind turbine is installed at the bottom of the separation bed. The air chamber is connected to a blower through an air duct to provide wind force for the coal selection bed; there are two telescopic rods, which are respectively installed at the front and rear ends of the left side of the base, and the top of the telescopic rod is connected to the left end of the lower surface of the selection bed through a pin shaft, and the selection bed can be moved up and down by the telescopic rod; the first spring is sleeved on the outer wall of the telescopic rod, and the selection bed is supported by the elastic force of the first spring; the dust cover is installed on the top of the selection bed; the purification mechanism is installed in the middle of the upper surface of the dust cover; the hopper is installed at the left end of the upper surface of the dust cover; the first discharge hopper and the second discharge hopper are respectively installed at the upper and lower ends of the right side wall of the selection bed.

[0006] Furthermore, the lifting mechanism includes a box body, a limit slot, a lifting rod, a connecting rod, a hydraulic cylinder, a push plate and a guide slot. The box body is fixedly connected to the left end of the upper surface of the frame, and limit slots are vertically opened on the front and rear sides of the box body; the lifting rod is horizontally inserted into the inner cavity of the limit slot; there are two connecting rods, one end of which is sleeved on the outer wall of the lifting rod, and the other end is connected to the left end of the base through a pin shaft, and the base is supported by the connecting rod; the hydraulic cylinder is horizontally installed in the middle of the left side wall of the box body; the push plate is installed at the output end of the hydraulic cylinder, and a guide slot is opened on the front of the push plate, and the lifting rod passes through the inner cavity of the guide slot, and the lifting rod is laterally supported by the guide slot.

[0007] Furthermore, the guide grooves are distributed on the outer wall of the push plate in a stepped manner.

[0008] Furthermore, the purification mechanism includes a connecting pipe, a purification cylinder, an air outlet, a base plate, a cage frame, a filter bag, a brush assembly and a collection tank, one end of the connecting pipe is installed in the middle of the upper surface of the dust cover; the purification cylinder is installed at the other end of the connecting pipe; there are several air outlets, which are equidistantly arranged on the outer wall of the purification cylinder from top to bottom along the circumferential direction; the base plate is installed at the bottom of the purification cylinder, and the base plate is hollow; the cage frame is vertically installed on the upper surface of the base plate; the filter bag is sleeved on the outer wall of the cage frame, and the inner cavity of the filter bag is connected to the connecting pipe, and the dust is filtered through the filter bag; the brush assembly is installed at the center position of the upper surface of the purification cylinder; the collection tank is screwed to the bottom end of the outer wall of the purification cylinder.

[0009] Furthermore, the cage frame is cylindrical in shape.

[0010] Furthermore, the brushing assembly includes a motor, a rotating shaft, an inner rod, an external sensor, a second spring and a brush. The motor is installed at the center of the upper surface of the purification cylinder; the rotating shaft is installed at the output end of the motor; there are two inner rods, which are installed horizontally at the upper and lower ends of the outer wall of the rotating shaft; the outer rod is sleeved on the outer wall of the inner rod; the second spring is inserted into the inner cavity of the outer rod; the brush is installed at the right end of the outer rod, and the brush is pushed to contact the inner wall of the filter bag under the action of the elastic force of the second spring.

[0011] Furthermore, the length of the brush is the same as the length of the filter bag.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The dust is filtered through the filter bag to prevent the dust from being discharged into the air and polluting the air. The motor drives the shaft to rotate, and the brush rotates under the cooperation of the inner rod and the outer rod. The second spring force pushes the brush to always contact the inner wall of the filter bag. The brush fully cleans the inner wall of the filter bag and has the function of gas purification to prevent dust from polluting the air. Dust collection can prevent the loss of raw materials.

[0014] 2. The hydraulic cylinder drives the push plate to move to the left or right, and the inclined surface of the guide groove can squeeze the lifting rod downward or upward, allowing the connecting rod to drive the separation bed down or up, changing the inclination of the separation bed. The inclination of the separation bed can be changed according to the content of gangue, thereby improving coal separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the lifting mechanism structure of the utility model;

[0017] Figure 3 This is a front cross-sectional view of the lifting mechanism of the utility model;

[0018] Figure 4 This is a front cross-sectional view of the purification mechanism of the utility model;

[0019] Figure 5 This is an enlarged view of point A of the utility model;

[0020] Figure 6 This is a schematic diagram of the cage skeleton structure of the utility model.

[0021] In the figure: 1. Frame; 2. Base; 3. Lifting mechanism; 4. Bed selection; 5. Telescopic rod; 6. First spring; 7. Dust cover; 8. Purification mechanism; 9. Hopper; 10. First discharge hopper; 11. Second discharge hopper; 31. Box; 32. Limiting groove; 33. Lifting rod; 34. Connecting rod; 35. Hydraulic cylinder; 36. Push plate; 37. Guide groove; 81. Connecting pipe; 82. Purification cylinder; 83. Air outlet; 84. Bottom plate; 85. Cage frame; 86. Filter bag; 87. Brushing assembly; 88. Collection tank; 871. Motor; 872. Rotating shaft; 873. Inner rod; 874. Outer rod; 875. Second spring; 876. Brush. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Reference Figure 1-6The utility model provides the following technical solutions: a separation bed for a wind-driven jigging dry-process coal separation machine, comprising a frame 1 and a base 2. The right end of the base 2 is connected to the right end of the frame 1 through a pin shaft. The left end of the upper surface of the frame 1 is fixedly connected to a lifting mechanism 3. The top of the lifting mechanism 3 is connected to the left end of the base 2 through a pin shaft. The base 2 is driven to rise or fall through the lifting mechanism 3. The right end of the base 2 is connected to a separation bed 4 through a pin shaft. Vibrating motors are installed on the front and rear sides of the separation bed 4 to allow the separation bed 4 to vibrate continuously. The separation bed 4 separates coal blocks and gangue of different purposes into layers. An air chamber connected to an external blower is installed at the bottom of the separation bed 4 to provide wind force for coal separation to the separation bed 4. The front and rear ends of the left side of the base 2 are A telescopic rod 5 is installed vertically, and the top of the telescopic rod 5 is connected to the left end of the lower surface of the selection bed 4 through a pin shaft, which can make the selection bed 4 move up and down, which helps the selection bed 4 to vibrate. The outer wall of the telescopic rod 5 is sleeved with a first spring 6, and the elastic force of the first spring 6 is used to support the selection bed 4. A dust cover 7 is installed on the top of the selection bed 4, and a purification mechanism 8 is installed in the middle of the upper surface of the dust cover 7. A hopper 9 is fixedly connected to the left end of the upper surface of the dust cover 7. The hopper 9 is used for dropping coal blocks. The first discharge hopper 10 and the second discharge hopper 11 are respectively installed at the upper and lower ends of the right side wall of the selection bed 4. The first discharge hopper 10 discharges coal blocks with low density on the upper layer of the selection bed 4, and the second discharge hopper 11 is used to discharge impurities such as gangue with high density.

[0024] As a preferred solution, further, the lifting mechanism 3 includes a box body 31 fixedly connected to the left end of the upper surface of the frame 1, and limit grooves 32 are vertically provided on the front and rear sides of the box body 31. A lifting rod 33 is inserted into the inner cavity of the limit groove 32 along the front and rear directions, and one end of the connecting rod 34 is sleeved on the outer wall of the lifting rod 33. The other end of the connecting rod 34 is connected to the left end of the base 2 through a pin shaft. A hydraulic cylinder 35 is horizontally installed on the left side wall of the box body 31, and a push plate 36 is installed at the output end of the hydraulic cylinder 35. A guide groove 37 is provided on the front of the push plate 36. The lifting rod 33 passes through the inner cavity of the guide groove 37, and the guide groove 37 is distributed in a stepped manner on the outer wall of the push plate 36. When the hydraulic cylinder 35 drives the push plate 36 to move left and right, the inclined surface of the guide groove 37 can push the lifting rod 33 down or up.

[0025] As a preferred solution, further, the purification mechanism 8 includes one end of a connecting pipe 81 installed in the middle of the upper surface of the dust cover 7, and a purification cylinder 82 is installed at the other end of the connecting pipe 81. The outer wall of the purification cylinder 82 is provided with a plurality of air outlet holes 83 equidistantly spaced from top to bottom along the circumference. The air outlet holes 83 can discharge the purified gas. A hollow bottom plate 84 is installed at the bottom of the purification cylinder 82, and a cage frame 85 is vertically installed on the upper surface of the bottom plate 84. A filter bag 86 is sleeved on the outer wall of the cage frame 85. The filter bag 86 filters the dust and discharges the gas after purification to prevent air pollution. A brushing assembly 87 is installed at the center of the upper surface of the purification cylinder 82. The cage frame 85 is cylindrical, so that the filter bag 86 is cylindrical, so that the brushing assembly 87 can fully clean the inner wall of the filter bag 86 when it rotates. The bottom end of the outer wall of the purification cylinder 82 is screwed with a collection groove 88 to collect coal powder.

[0026] As a preferred solution, further, the brushing assembly 87 includes a motor 871 installed at the center position of the upper surface of the purification cylinder 82, and the output end of the motor 871 is equipped with a rotating shaft 872 that can rotate around its own axis, and the upper and lower ends of the outer wall of the rotating shaft 872 are horizontally installed with inner rods 873, the outer wall of the inner rod 873 is sleeved with an outer rod 874, and the inner cavity of the outer rod 874 is inserted with a second spring 875, and the right end of the outer rod 874 is vertically equipped with a brush 876, which is pushed into contact with the inner wall of the filter bag 86 by the elastic force of the second spring 875. The length of the brush 876 is the same as the length of the filter bag 86, ensuring that the brush 876 can fully clean the inner wall of the filter bag 86 when rotating.

[0027] The working principle of this utility model is:

[0028] Step 1: Coal blocks are put into the separation bed 4 from the feed hopper 9. Under the cooperation of the telescopic rod 5 and the first spring 6, the vibration motor drives the separation bed to vibrate. At the same time, the wind chamber evenly provides wind force to the separation bed 4, so that the separation bed 4 separates the coal blocks into layers. The coal blocks with low density are in the upper layer. The clean coal is discharged from the first discharge hopper 10, and the gangue with high density is discharged from the second discharge hopper 11, thus achieving coal separation.

[0029] Step 2: When the dust gas in the bed 4 needs to be purified, the dust raised in the dust cover 7 enters the filter bag 86 through the connecting pipe 81. The filter bag 86 filters the dust, and the purified gas is discharged through the air outlet 83 to prevent air pollution.

[0030] The motor 871 drives the rotating shaft 872 to rotate, and the brush 876 rotates under the cooperation of the inner rod 873 and the outer rod 874. Under the elastic force of the second spring 875, the brush 876 rotates around the inner wall of the filter bag 86. The brush 876 fully cleans the inner wall of the filter bag 86 to prevent dust from clogging the filter bag 86.

[0031] Step three, when it is necessary to adjust the inclination of the selection bed 4, the hydraulic cylinder 35 drives the push plate 36 to move left and right, so that the inclined surface of the guide groove 37 can squeeze the lifting rod 33 downward or upward. Therefore, the bottom end of the connecting rod 34 drops or rises, thereby causing the selection bed 4 to drop or rise, changing the inclination of the selection bed 4, and allowing the selection bed 4 to change the coal selection speed according to the amount of gangue impurities in the coal block, which has the effect of improving the coal selection efficiency.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A separation bed for a wind-driven jigging dry-process coal separation machine, comprising a frame (1) and a base (2), wherein the right end of the base (2) is connected to the right end of the top of the frame (1) via a pin shaft, characterized in that: Also includes: A lifting mechanism (3) is fixedly connected to the left end of the upper surface of the frame (1), and the top of the lifting mechanism (3) is connected to the left end of the base (2) via a pin; The selection bed (4) has one end connected to the right end of the base (2) through a pin shaft. Vibration motors are installed on both the front and rear sides of the selection bed (4) to allow the selection bed (4) to vibrate for coal selection. An air chamber is installed at the bottom of the selection bed (4). The air chamber is connected to a blower through an air duct to provide wind power for the selection bed (4) when selecting coal. Two telescopic rods (5) are respectively installed at the front and rear ends of the left side of the base (2), and the top of the telescopic rod (5) is connected to the left end of the lower surface of the selection bed (4) through a pin shaft, and the selection bed (4) can be moved up and down by the telescopic rod (5); A first spring (6) is sleeved on the outer wall of the telescopic rod (5) and supports the selection bed (4) through the elastic force of the first spring (6); A dust cover (7) is mounted on the top of the selected bed (4); A purification mechanism (8) is mounted on the middle portion of the upper surface of the dust cover (7); A hopper (9) is mounted on the left end of the upper surface of the dust cover (7); The first discharge hopper (10) and the second discharge hopper (11) are respectively mounted on the upper and lower ends of the right side wall of the selection bed (4).

2. The separation bed for a wind-driven jigging dry coal separator according to claim 1, characterized in that: The lifting mechanism (3) comprises: A box body (31) is fixedly connected to the left end of the upper surface of the frame (1), and limit slots (32) are vertically provided on both the front and rear sides of the box body (31); A lifting rod (33) is inserted transversely into the inner cavity of the limiting groove (32); There are two connecting rods (34), one end of which is sleeved on the outer wall of the lifting rod (33), and the other end is connected to the left end of the base (2) through a pin shaft, and the base (2) is supported by the connecting rod (34); A hydraulic cylinder (35) is installed transversely in the middle of the left side wall of the box (31); A push plate (36) is installed at the output end of the hydraulic cylinder (35). A guide groove (37) is provided on the front of the push plate (36), and the lifting rod (33) passes through the inner cavity of the guide groove (37). The lifting rod (33) is laterally supported by the guide groove (37).

3. The separation bed for a wind-driven jigging dry coal separator according to claim 2, characterized in that: The guide grooves (37) are distributed in a stepped manner on the outer wall of the push plate (36).

4. The separation bed for a wind-driven jigging dry coal separator according to claim 1, characterized in that: The purification mechanism (8) comprises: A connecting pipe (81), one end of which is mounted on the middle portion of the upper surface of the dust cover (7); A purification cartridge (82) is mounted on the other end of the connecting pipe (81); There are a plurality of air outlet holes (83) which are equidistantly arranged on the outer wall of the purification cylinder (82) from top to bottom along the circumferential direction; A bottom plate (84) is mounted on the bottom of the purification cylinder (82), and the bottom plate (84) is hollow; A cage frame (85) is vertically mounted on the upper surface of the bottom plate (84); A filter bag (86) is sleeved on the outer wall of the cage frame (85), and the inner cavity of the filter bag (86) is connected to the connecting pipe (81), so that dust is filtered through the filter bag (86); A brushing assembly (87) is mounted at the center of the upper surface of the cleaning cylinder (82); The collecting tank (88) is screwed to the bottom end of the outer wall of the purification cylinder (82).

5. The separation bed for a wind-driven jigging dry coal separator according to claim 4, characterized in that: The cage frame (85) is cylindrical in shape.

6. The separation bed for a wind-driven jigging dry-process coal separator according to claim 4, characterized in that: The scrubbing assembly (87) comprises: A motor (871) is mounted at the center of the upper surface of the purification cylinder (82); A rotating shaft (872) is mounted on the output end of the motor (871); Two inner rods (873) are transversely mounted on the upper and lower ends of the outer wall of the rotating shaft (872); An outer rod (874) is sleeved on the outer wall of the inner rod (873); A second spring (875) is inserted into the inner cavity of the outer rod (874); The brush (876) is mounted on the right end of the outer rod (874) and is pushed by the elastic force of the second spring (875) to contact the inner wall of the filter bag (86).

7. The separation bed for a wind-driven jigging dry coal separator according to claim 6, characterized in that: The length of the brush (876) is the same as that of the filter bag (86).

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