Floating type air chamber structure for jigger

Abstract

A floating type air chamber structure for a jigging machine is installed in a jigging chamber of the jigging machine and comprises an air chamber box body, the top of the air chamber box body is closed, an opening is formed in the bottom of the air chamber box body, and the floating type air chamber structure further comprises a guide mechanism and an installation frame. The mounting frame is arranged in the jigging chamber and is arranged below the sieve plate; the air chamber box body is connected with the mounting frame through a guide mechanism, and the guide mechanism realizes limiting of up-and-down floating of the air chamber box body; the air outlet section of the air inlet and outlet pipeline extends into the box body from the bottom of the air chamber box body, and the air inlet end of the air inlet and outlet pipeline is connected with the air source generating device. The air chamber box body floats up and down in water to homogenize the air flow intensity when air enters the jigger, not only can the air flow be prevented from flowing around in the water, but also the impact of the air flow on the side walls of the air chamber and the jigger box body at the moment of air inlet is greatly reduced, and the air inlet air flow forms a state of being uniformly distributed by taking the air chamber box body as a three-dimensional center; the problem that a traditional jigger is uneven in water flow pulse is effectively solved, and the material sorting effect of the jigger is improved.

Description

Technical Field

[0001] The utility model relates to the field of jigs for coal preparation equipment, and particularly to a floating air chamber structure for a jig. Background Art

[0002] The main function of the air chamber in the jig is to generate pulsating water flow, so as to realize the classification and separation of materials. A jig is a device used for mineral processing. Its working principle is mainly to control the air intake and exhaust in the air chamber, so that the water flow makes periodic up and down changes. This periodic water flow change helps the materials to disperse in the water flow, making the large and heavy material particles settle on the lower layer of the water flow, while the small and light materials float on the upper layer and move forward with the water flow until they are discharged from the discharge port. In this way, materials of different sizes are classified, and the separation and purification of minerals or other materials are realized.

[0003] The traditional air chamber of the jig is usually located below the sieve plate of the jig. Through specific designs, such as setting a herringbone guide plate mechanism, etc., it is ensured that the water flow changes its movement direction smoothly here. For example, in the Chinese utility model patent "An independent air chamber jig (ZL202022423044.9)", it is disclosed in this patent document that a plurality of independent air chambers are evenly distributed in the jig chamber. The top of each independent air chamber is closed and the bottom is open. A deformation diaphragm that divides it into an inner air chamber and an outer air chamber is arranged in the independent air chamber, and each inner air chamber is connected in parallel to a ventilation pipe. However, in actual use, the utilization rate of this air chamber structure is extremely low, the pulsating water flow pressure generated is small, and it cannot meet the material separation above the sieve plate. Moreover, this air chamber structure requires an additional air pipe connected to the air chamber, with a complex structure and strong constraints, and the actual operation experience is not good. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects of the prior art, and provide a floating air chamber structure for a jig. By optimizing the structure of the air chamber of the jig, the problem of uneven water flow pulsation of the jig is solved, the service life of the air chamber is extended, and the uneven air-water interface air intake conversion is changed into a "whole up and whole down" movement mode, with better separation ability.

[0005] In order to achieve the above invention purpose, the technical scheme adopted by the utility model is as follows: A floating air chamber structure for a jig, the air chamber structure is installed in the jig chamber of the jig, including an air chamber box body, the top of the air chamber box body is closed, the bottom is provided with an opening, and further includes a guiding mechanism and a mounting rack;

[0006] The mounting rack is arranged in the jig chamber and is placed below the sieve plate;

[0007] The air chamber box is connected to the mounting frame through a guide mechanism, and the guide mechanism realizes the upper and lower floating limit of the air chamber box;

[0008] The air outlet section of the air inlet and exhaust pipe extends from the bottom of the air chamber box into the box body, and the air inlet end of the air inlet and exhaust pipe is connected to the air source generating device.

[0009] As a preferred technical solution: an annular plate is arranged at the bottom of the air chamber box body, and the inner diameter of the through hole in the center of the annular plate is larger than the outer diameter of the outlet section of the inlet and exhaust pipes; the inlet and exhaust pipes are mounted below the central position of the bottom of the air chamber box body through a bracket, and the outlet section of the inlet and exhaust pipes extends into the interior of the air chamber box body through the through hole.

[0010] As a preferred technical solution: the bottom of the air chamber box is an open structure, the air inlet and exhaust ducts are erected below the center of the bottom of the air chamber box through a bracket, and the air outlet sections of the air inlet and exhaust ducts extend into the interior of the air chamber box.

[0011] As a preferred technical solution: the mounting frame is connected to the side wall of the jigging chamber or the bottom surface of the screen plate through a connecting piece; and the guide mechanism is suspended below the mounting frame.

[0012] As an optimal technical solution: the guide mechanism includes a slide and a guide rod; an embedded slide is arranged on the top of the air chamber box, and the upper end of the guide rod slidingly matched with the slide is installed on the mounting frame, so that the air chamber box can float up and down under the constraint of the guide rod.

[0013] As a preferred technical solution: the guide mechanism is a spring structure; the upper end of the spring is installed on the mounting frame, and the lower end of the spring is installed on the top of the air chamber box, so that the air chamber box floats up and down under the constraint of the spring.

[0014] As a preferred technical solution: the mounting frame is connected to the side wall of the jigging chamber through a connecting piece; the mounting frame is arranged outside the air chamber box structure, and a guide mechanism is arranged between the mounting frame and the outer wall of the air chamber box structure.

[0015] As an optimal technical solution: the guide mechanism is a combination of a slide rail and a slider, the slide rail is vertically installed on the outer side wall of the air chamber box, and a slider that slides with the slide rail is installed at the end of the mounting frame to achieve the air chamber box floating up and down along the slide rail.

[0016] As a preferred technical solution: a plurality of the air chamber boxes are arranged inside the jig; and independently controlled inlet and exhaust valves are installed in the respective matching inlet and exhaust pipes.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The air chamber structure disclosed by the present utility model equalizes the air flow intensity during the air intake of the jigger by the up-and-down floating of the air chamber box in water. It can not only prevent the air flow from scurrying around in water, but also greatly reduce the impact of the air flow on the air chamber and the side wall of the jigger box at the moment of air intake. The intake air flow forms a state of uniform distribution with the air chamber box as the three-dimensional center, effectively solving the problem of uneven water flow pulses in traditional jiggers and improving the sorting effect of the jigger on materials.

[0019] 2. The floating air chamber structure greatly reduces the impact of water flow pulsation on the air chamber box and the jigger body during air intake, effectively extending the service life of the jigger adopting this patent.

[0020] 3. The present utility model adds a guiding mechanism to lock the up-and-down movement of the air chamber box, realizing the up-and-down floating of the air chamber box in the jigger chamber. It can also have a buffering effect on the vertical movement of the box through the adjustment of the manufacturing materials and processes, improving the service life, reducing the equipment damage rate, and lowering the maintenance risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side cross-sectional view of the air chamber structure during air intake in an embodiment of the present utility model.

[0022] Figure 2 It is a side cross-sectional view of the air chamber structure during air exhaust in an embodiment of the present utility model.

[0023] Figure 3 It is a schematic structural diagram of the guiding mechanism in another embodiment of the present utility model.

[0024] Figure 4 It is a schematic structural diagram of the spring in the present utility model.

[0025] In the figure: 1 is the material layer, 2 is the sieve plate, 3 is the air inlet and exhaust pipe, 4 is the guiding mechanism, 5 is the air chamber box, 6 is the jigger chamber, 7 is the annular plate, 8 is the spring, and 9 is the mounting bracket.

[0026] In the figure, the double arrow is the gas flow direction, and the single arrow is the water body flow direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0028] The air chamber structure of the jigger disclosed in the utility model is provided with a guide mechanism on the box body. After ventilation is conducted into the box body, the air flow first fills the box body to make the box body float and then pushes the water in the jigger chamber out of the box body, thereby converting the uneven air pressure into a uniform air flow to act on the water surface through the movable box body. In this way, the air flow can be prevented from running wildly in the water, and the side plate has a small pressure during use because the box body can float. Therefore, the service life of the air chamber box body is longer than that of the ordinary air chamber, which not only solves the problem of uneven water flow pulse of the jigger and improves the effect of sorting materials, but also optimizes the structure of the jigger air chamber and prolongs the service life of the air chamber.

[0029] The floating air chamber structure for the jig disclosed in the utility model is installed in the jig chamber of the jig machine. The top of the air chamber box 5 is closed, the bottom is provided with an opening, and it also includes a guide mechanism and a mounting frame 9. The mounting frame 9 is arranged in the jig chamber 6 and is placed below the screen plate 2. The air chamber box 5 is connected to the mounting frame 9 through the guide mechanism 4, and the guide mechanism 4 realizes the upper and lower floating limit of the air chamber box 5. The air outlet section of the air inlet and exhaust pipe 3 extends from the bottom of the air chamber box 5 into the box, and the air inlet end of the air inlet and exhaust pipe 3 is connected to the air source generating device. Example 1

[0030] See also Figure 1 Based on the above structure, an annular plate 7 is provided at the bottom of the air chamber housing 5. In this embodiment, the inner diameter of the through hole in the center of the annular plate 7 is greater than or equal to the outer diameter of the outlet section of the air intake and exhaust pipe 3. The air intake and exhaust pipe 3 is mounted below the central position of the bottom of the air chamber housing through a bracket (not shown in the figure), and the outlet section of the air intake and exhaust pipe 3 extends into the air chamber housing 5 through the through hole. Example 2

[0031] See attached Figure 2 Based on the above structure, in this embodiment, the bottom of the air chamber box body is an open structure, the air intake and exhaust ducts 3 are mounted below the center of the bottom of the air chamber box body 5 through a bracket, and the air outlet section of the air intake and exhaust ducts 3 extends into the interior of the air chamber box body 5. Example 3

[0032] Based on the structure of embodiment 1-2, the mounting frame 9 is connected to the side wall or the bottom surface of the screen plate of the jigging chamber 6 by bolts and other connecting parts, see the attached Figure 1-2 In this embodiment, the mounting frame 9 is connected to the side wall of the jigging chamber through a connecting piece, and the guide mechanism 4 is suspended below the mounting frame 9. The guide mechanism 4 includes a slideway 4-2 and a guide rod 4-1. Among them, an embedded slideway 4-2 is arranged on the top of the air chamber box 5, and the upper end of the guide rod 4-2 that slides with the slideway is installed on the mounting frame 9, so that the air chamber box 5 can float up and down under the restraint of the guide rod 4-1. Example 4

[0033] Based on the structure of embodiment 1-2, the mounting frame 9 is connected to the side wall or the bottom surface of the screen plate of the jigging chamber 6 by bolts and other connecting parts, see the attached Figure 4 In this embodiment, the mounting frame 9 is connected to the side wall of the jigging chamber through a connecting piece, and the guide mechanism 4 is suspended below the mounting frame 9. The guide mechanism 4 is a spring 8 structure. The upper end of the spring 8 is mounted on the mounting frame 9, and the lower end of the spring 8 is mounted on the top of the air chamber box body, so that the air chamber box body floats up and down under the restraint of the spring 8. Example 5

[0034] Based on the structure of Embodiment 1-2, the mounting frame 9 is connected to the side wall of the jigging chamber 6 by bolts or other connecting members. Figure 3 In this embodiment, the mounting frame 9 is arranged outside the air chamber box 5 structure, and a guide mechanism 4 is arranged between the mounting frame 9 and the outer wall of the air chamber box 5 structure. The guide mechanism 4 is a combination of a slide rail and a slider, and the slide rail 4-3 is vertically installed on the outer wall of the air chamber box 5. The end of the mounting frame 9 is installed with a slider 4-4 that slides with the slide rail 4-3 to achieve the air chamber box floating up and down along the slide rail.

[0035] As a preferred technical solution: the air chamber box 5 can be used in a jigging chamber by only one, or several can be arranged in an array. The matched air inlet and exhaust pipes 3 are respectively installed with independently controlled air inlet and exhaust valves. After using multiple air chamber boxes 5 arranged in an array, it can be applied to super-large jigs, providing the same stable pulsating water flow, and the wind pressure required by each air chamber box 5 is not particularly large, the energy consumption is small, the performance requirements of the air supply equipment are low, and the jig sorting effect is also good.

[0036] The application method of the above air chamber box structure is as follows:

[0037] (1) The air chamber box is filled with water and placed at the bottom of the guide rod;

[0038] (2) Open the valve on the inlet and exhaust pipes, and inject gas into the air chamber box through the inlet and exhaust pipes. The water in the air chamber box is squeezed by the gas and discharged from the bottom of the air chamber box;

[0039] (3) The air chamber body floats upward along the guide mechanism under the action of gas buoyancy; at this time, the discharged water and the continuously injected gas push the water in the jigging chamber, causing the water level inside the jigging chamber to rise, thus impacting the material above the screen plate.

[0040] The guide mechanism 4 provided on the air chamber housing ensures that the housing moves in the direction set by the guide mechanism when it moves up and down. The guide mechanism can control the direction of motion and speed of the air chamber housing 5 when the air intake and exhaust are controlled by the device.

[0041] A pipe 3 that is connected to the lower open end of the air chamber box body 5 and extends outward from the jigging chamber 6. Air is introduced into the air chamber box body 5 through the air inlet and exhaust pipe 3. The water in the air chamber box body 5 is emptied, and the air chamber box body 5 moves upward under the action of air flow and buoyancy. At the same time, the excess air pushes the water in the jigging chamber 6, causing the water level to rise, thereby realizing the impact on the material 1 above the sieve plate 2. By introducing air into the air chamber box body 5 through this pipe, the air chamber box body 5 moves upward under the combined action of the push of air and buoyancy. At the same time, the air pushes the water in the jigging chamber 6 with an open lower end, causing the water level in the jigging chamber 6 to rise.

[0042] The specific implementation manner of the present utility model is as follows:

[0043] During the air intake state ( Figure 1 ), open the air intake valve on the air inlet and exhaust pipe 3, close the exhaust valve, and use a low-pressure blower to input gas into the air chamber box body 5 through the air inlet and exhaust pipe 3, such as Figure 1 in the direction of the middle arrow. The air chamber box body 5 filled with gas moves upward in the designed direction and speed under the guidance of the guiding mechanism 4 under the action of buoyancy and the push of gas. At the same time, the gas pushes the water in the jigging chamber 6, causing the water level to rise, thereby impacting the material 1 above the sieve plate 2 upward;

[0044] During the exhaust state ( Figure 2 ), close the air intake valve on the air inlet and exhaust pipe 3, open the exhaust valve, and make the gas discharge outward from the air inlet and exhaust pipe 3 in the direction of the Figure 2 arrow. At this time, the water refills the air chamber box body 5, and the air chamber box body 5 moves downward under the action of the guiding mechanism 4. At the same time, the water level in the jigging chamber 6 drops.

[0045] Repeat the above steps cyclically. The material is sorted under the action of the rising and falling pulsed water flow. The combination of the floating box body and the guiding mechanism is used to generate a uniformly output pulsed water flow, avoiding the chaotic movement of gas in the water, making full and effective use of the intake air flow. Through the floating design of the air chamber, the impact of the air flow on the air chamber of the jig and the side plate of the machine body is reduced, achieving the effect of extending the service life of the jig.

[0046] The present utility model has been described in detail above in combination with the embodiments in the drawings. Those of ordinary skill in the art can make various variations to the present utility model according to the above description. Therefore, certain details in the embodiments should not constitute a limitation to the present utility model, and the protection scope of the present utility model will be defined by the scope defined in the appended claims.

Claims

1. A floating air chamber structure for a jigger, the air chamber structure being installed in a jigger chamber of the jigger, comprising an air chamber box body, the top of the air chamber box body being closed and the bottom being provided with an opening, characterized in that: Also included are a guide mechanism and a mounting frame; The mounting frame is arranged in the jigging chamber and is placed below the screen plate; The air chamber box is connected to the mounting frame through a guide mechanism, and the guide mechanism realizes the upper and lower floating limit of the air chamber box; The air outlet section of the air inlet and exhaust pipe extends from the bottom of the air chamber box into the box body, and the air inlet end of the air inlet and exhaust pipe is connected to the air source generating device.

2. The floating air chamber structure for a jig according to claim 1, characterized in that: An annular plate is arranged at the bottom of the air chamber box body, and the inner diameter of the through hole in the center of the annular plate is larger than the outer diameter of the air outlet section of the inlet and exhaust pipes; the inlet and exhaust pipes are erected below the central position of the bottom of the air chamber box body through a bracket, and the air outlet section of the inlet and exhaust pipes extends into the interior of the air chamber box body through the through hole.

3. The floating air chamber structure for a jig according to claim 1, characterized in that: The bottom of the air chamber box body is an open structure, and the air inlet and exhaust pipes are erected below the central position of the bottom of the air chamber box body through a bracket, and the air outlet sections of the air inlet and exhaust pipes extend into the interior of the air chamber box body.

4. The floating air chamber structure for a jig according to claim 1, characterized in that: The mounting frame is connected to the side wall of the jigging chamber or the bottom surface of the screen plate through a connecting piece; and the guide mechanism is suspended below the mounting frame.

5. The floating air chamber structure for a jig according to claim 4, characterized in that: The guide mechanism includes a slide and a guide rod; an embedded slide is arranged on the top of the air chamber box, and the upper end of the guide rod slidingly matched with the slide is installed on the mounting frame, so that the air chamber box can float up and down under the constraint of the guide rod.

6. The floating air chamber structure for a jig according to claim 4, characterized in that: The guide mechanism is a spring structure; the upper end of the spring is mounted on the mounting frame, and the lower end of the spring is mounted on the top of the air chamber box body, so that the air chamber box body floats up and down under the restraint of the spring.

7. The floating air chamber structure for a jig according to claim 1, characterized in that: The mounting frame is connected to the side wall of the jigging chamber through a connecting piece; the mounting frame is arranged outside the air chamber box structure, and a guiding mechanism is arranged between the mounting frame and the outer wall of the air chamber box structure.

8. The floating air chamber structure for a jig according to claim 7, characterized in that: The guide mechanism is a combination of a slide rail and a slider. The slide rail is vertically installed on the outer side wall of the air chamber box body. A slider that slidably cooperates with the slide rail is installed at the end of the mounting frame to achieve the air chamber box body floating up and down along the slide rail.

9. The floating air chamber structure for a jig according to claim 1, characterized in that: A plurality of air chamber boxes are arranged inside the jig; and independently controlled air inlet and exhaust valves are installed in the respective matching air inlet and exhaust pipes.

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