A pulsating water flow jig

Abstract

The present application relates to the technical fields of sorting equipment, in particular to a kind of pulsed water flow jig, including jig frame body, the circulating water tank is equipped with pulsed water flow generating mechanism with heavy separation groove, the pulsed water flow generating mechanism includes first chamber, the circulating water tank is unidirectionally communicated with first chamber, first chamber unidirectionally communicates with second chamber, the first chamber and second chamber are both variable volume cavity, the second chamber is bidirectionally communicated to heavy separation groove, constitute two valve two membrane jig pulsed water flow generating mechanism, the jig frame body is also equipped with swing mechanism of driving the volume change of first chamber and second chamber.This application produces pulsed water flow to heavy separation groove by pulsed water flow generating mechanism and reselects material, because there is no suction effect of the down water flow generated by traditional jig, the delaminating time of mineral is shortened, when the density difference of two minerals is 0.5, it can also be sorted, with good sorting effect, and the range of use is wider.

Description

Technical Field

[0001] This invention relates to the field of sorting equipment technology, specifically to a pulse water flow jig. Background Technology

[0002] A jig is a device that performs the jigging process. The material is mainly separated according to density differences in a vertically rising and falling variable speed medium flow. Differences in particle size and shape of the material have a certain impact on the beneficiation results. The medium used in jigging can be water or air. When water is used as the separation medium, it is called hydraulic jigging; when air is used as the separation medium, it is called air jigging. Patent CN104209180B discloses a jig with multi-stage sorting function. This jig generates a sinusoidal water flow through a reciprocating cone hopper, which sorts materials using the sinusoidal water flow. During the downward movement of the jig, it sucks in the water flow under the gravity separator, affecting the water flow and thus interfering with the free fall of minerals, increasing the sorting time. Using a high-power water pump to pump water can alleviate the suction, but the water pump has high power, high energy consumption, and requires a large amount of water, making it unsuitable for water-scarce areas. In addition, this jig is relatively difficult to sort two minerals with a density difference of less than 0.8. Summary of the Invention

[0003] To address the problem that existing jigs can cause suction and thus cannot re-separate minerals with small density differences, this invention provides a pulsed water flow jig. This jig can generate pulsed water flow to re-separate minerals, has a large water supply, does not require a water pump, saves energy and water consumption, and can also separate minerals with a density difference of 0.5.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A pulse-flow jig includes a jig frame mounted on a circulating water tank. A gravity separation tank is provided on the jig frame. A pulse-flow generating mechanism is provided between the circulating water tank and the gravity separation tank. The pulse-flow generating mechanism includes a first chamber, which is unidirectionally connected to the circulating water tank. The first chamber is unidirectionally connected to a second chamber. Both the first and second chambers are variable-volume chambers. The second chamber is bidirectionally connected to the gravity separation tank, forming a two-valve, two-membrane jig pulse-flow generating mechanism. The jig frame also includes a swing mechanism that drives the volume changes of the first and second chambers. One end of the swing mechanism is connected to the second chamber and swings up and down, causing the volume of the first chamber to decrease while the volume of the second chamber increases, or vice versa. The oscillating mechanism drives the volume change of the first and second chambers, drawing water from the circulating water tank into the first chamber, then drawing water from the first chamber into the second chamber, and finally pushing water from the second chamber into the gravity separation tank. Since the water supply to the gravity separation tank is equal to the volume change of the second chamber, the pulse water flow generating mechanism provides a large water supply to the gravity separation tank, reducing the suction effect on the water in the gravity separation tank and shortening the separation time.

[0006] A pulse-flow jig includes a jig frame mounted on a circulating water tank. A gravity separation tank is provided on the jig frame. A pulse-flow generating mechanism is provided between the circulating water tank and the gravity separation tank. The pulse-flow generating mechanism includes a first chamber, which is unidirectionally connected to the circulating water tank. The first chamber is unidirectionally connected to a second chamber. The first chamber is a volume-variable chamber. An upper valve box is provided in the second chamber, dividing it into an upper chamber and a lower chamber. The upper chamber is bidirectionally connected to the gravity separation tank, and the lower chamber is unidirectionally connected to the upper chamber. The lower chamber is also a volume-variable chamber, forming a three-valve, two-membrane jig pulse-flow generating mechanism. The jig frame also includes a swing mechanism that drives the volume changes of the first and lower chambers. One end of the swing mechanism is connected to the second chamber and swings up and down, causing the volume of the first chamber to decrease while the volume of the lower chamber increases, or vice versa. The volume of the first chamber and the lower chamber is changed by the swing mechanism, which draws water from the circulating water tank into the first chamber, then draws water from the first chamber into the lower chamber, and finally the water from the lower chamber enters the upper chamber. Since the upper chamber is bidirectionally connected to the gravity separation tank, the water in the upper chamber enters the gravity separation tank. The volume of the first chamber and the lower chamber changes through the unidirectional connection between the upper chamber and the lower chamber, which avoids the suction effect on the water in the gravity separation tank, shortens the gravity separation time of the material, and improves the gravity separation efficiency.

[0007] Furthermore, both the first chamber and the second chamber are hollow structures with one end larger than the other, and the smaller ends of the second chamber and the first chamber are arranged in an up-down relative position.

[0008] Furthermore, the first chamber is a cavity enclosed by a lower valve box, a water flow shroud, and a positive pressure diaphragm. The lower valve box has an opening at the bottom, and the water flow shroud is fitted over the lower valve box. The water flow shroud and the lower valve box are sealed together by the positive pressure diaphragm. The volume change of the first chamber is achieved by compressing or expanding the positive pressure diaphragm.

[0009] Furthermore, the second chamber is an open-top cavity formed by a lower moving cone and a negative pressure diaphragm, with the lower end of the negative pressure diaphragm connected to the lower moving cone. The volume change of the second chamber is achieved by compressing or relaxing the negative pressure diaphragm.

[0010] Furthermore, when an upper valve box is provided in the second chamber, the upper valve box and the lower moving cone are sealed together by a negative pressure diaphragm. The space between the upper valve box, the negative pressure diaphragm, and the lower moving cone constitutes the lower chamber, and the space inside the upper valve box is the upper chamber. The volume change of the lower chamber is achieved by compressing or relaxing the negative pressure diaphragm.

[0011] Furthermore, both the lower valve box and the water flow shroud are hollow frustum shapes, the lower moving cone is a hollow inverted frustum shape, and the upper valve box is a hollow inverted frustum shape. The top surfaces of the frustum shapes of the lower and upper valve boxes are vertically opposite each other. The frustum structure allows for the installation of more one-way valves or check valves, increasing the water flow rate per unit time.

[0012] Furthermore, there are two lower valve boxes and two lower moving cones, with the upper ends of the two lower moving cones connected to the lower end of the negative pressure diaphragm. When an upper valve box is provided in the second chamber, each lower moving cone contains one upper valve box, and the upper ends of the two upper valve boxes are connected to the upper end of the positive pressure diaphragm. The design of two upper and lower valve boxes increases the water flow rate through the valve boxes.

[0013] Furthermore, a heavy material discharge hole is provided at the bottom of the lower moving cone, and the heavy material discharge hole is connected to a discharge pipe. When an upper valve box is provided in the second chamber, a heavy material discharge hole is provided at the bottom of the upper valve box, and the heavy material discharge hole is connected to a discharge pipe, which passes through the lower moving cone. This facilitates the discharge of small heavy materials that have entered the lower moving cone.

[0014] Furthermore, a pipe is provided between the water flow cover and the lower moving cone, with the lower end of the pipe connected bidirectionally to the water flow cover and the upper end connected unidirectionally to the lower moving cone.

[0015] Furthermore, a transition box is provided between the upper end of the pipe and the lower moving cone. One side of the transition box is unidirectionally connected to the lower moving cone, and the bottom of the transition box is bidirectionally connected to the top of the pipe. The transition box increases the communication area between the first chamber and the second chamber, thereby increasing the water flow rate per unit time.

[0016] Furthermore, the water flow shroud is equipped with a regulating pipe, and the regulating pipe is equipped with a one-way adjustable valve. By installing a one-way adjustable valve in the regulating pipe, a portion of the water in the first chamber can be discharged or a certain amount of air can be introduced into the first chamber, thereby reducing the water supply of the mechanism.

[0017] Furthermore, the volume change of the first chamber of the pulse water flow generating mechanism of the two-valve two-membrane jig is equal to the volume change of the second chamber, and the volume change of the first chamber of the pulse water flow generating mechanism of the three-valve two-membrane jig is equal to the volume change of the lower chamber.

[0018] Furthermore, the unidirectional connection is achieved using a check valve or a non-return valve to prevent backflow of water.

[0019] Furthermore, the check valve includes a jig sidewall with a valve stem. One end of the valve stem is rotatably connected to the jig sidewall, and the other end is rotatably connected to a valve plate. A first limiting block and a second limiting block are respectively provided at both ends of the valve stem. The first limiting block is close to the jig sidewall and limits the rotation angle of the valve stem relative to the jig sidewall, with a maximum rotation angle of 30° to 80°. The second limiting block is close to the valve plate and limits the rotation angle of the valve plate relative to the valve stem, with a maximum rotation angle of 10° to 20°. A water inlet is provided on the jig sidewall corresponding to the sealing gasket, and a sealing gasket is fixed on one side of the valve plate corresponding to the water inlet. The valve stem and valve plate work together to allow unidirectional water flow, and the two limiting blocks ensure stable closure even at the maximum opening angle.

[0020] Furthermore, the area of ​​the water inlet is smaller than the area of ​​the sealing gasket, and a fixing plate is provided on the lower surface of the sealing gasket. The area of ​​the fixing plate is smaller than the area of ​​the water inlet. A connecting bolt is provided on the valve plate, and the connecting bolt connects the valve plate, the sealing gasket, and the fixing plate. The sealing gasket is fixed by the fixing plate and the valve plate to prevent it from falling off during high-frequency opening and closing.

[0021] Furthermore, the jig has a first rotating component on its side wall, with two first rotating components positioned on either side of the valve stem. Each first rotating component has a first rotating shaft connecting the two first rotating components and the valve stem. The valve plate has a second rotating component on its upper surface, with two second rotating components positioned on either side of the valve stem. Each second rotating component has a second rotating shaft connecting the two second rotating components and the valve stem. By using the two rotating components as transitional elements, the wear on the check valve during opening and closing is reduced, thus extending its service life.

[0022] Furthermore, at least one check valve or check valve is provided on each side wall of the lower valve box and the upper valve box, and at least one check valve or check valve is provided on the side wall of the lower moving cone and the transition box that are in one-way communication.

[0023] Furthermore, the swing mechanism includes a motor, an eccentric mechanism, a connecting rod, and a swing arm. The output end of the motor is connected to the eccentric mechanism, the eccentric mechanism is connected to one end of the connecting rod, the other end of the connecting rod is connected to the swing arm, and the other end of the swing arm is connected to the second chamber. The motor drives the eccentric mechanism, and the combination of the eccentric mechanism and the connecting rod drives the connection end of the swing arm with the second chamber to reciprocate up and down.

[0024] Furthermore, the jig's pulse water flow generating mechanism can be one or two. When there are two mechanisms, a triangular bracket fixed to the jig frame is provided between them. The triangular bracket is rotatably connected to a swing arm via a bracket pivot. The swing arm is rotatably connected to the outer wall of the two lower moving cones, and the swing arm drives the two lower moving cones to perform alternating up-and-down reciprocating motions. When there is one mechanism, a triangular bracket fixed to the jig frame is provided between the mechanism and the eccentric mechanism. The triangular bracket is rotatably connected to a swing arm via a bracket pivot. The swing arm is rotatably connected to the outer wall of the lower moving cone, and the swing arm drives the lower moving cone to perform up-and-down reciprocating motions. Using the triangular bracket as a support point, the eccentric mechanism drives the swing arm to drive the lower moving cone to perform up-and-down reciprocating motions.

[0025] Furthermore, a material trough is provided below one side of the outlet end of the gravity separation tank, and the material trough is connected to the circulating water tank. Water in the gravity separation tank enters the material trough through the heavy material discharge plate or the light material discharge plate, and then enters the circulating water tank through the material trough to form water recycling, thus saving water resources.

[0026] The beneficial effects of the present invention through the above technical solution are as follows:

[0027] 1. The jig described in this invention generates pulsed water flow through a pulsed water generation mechanism to perform gravity separation on materials. It can also separate two minerals with a density difference of 0.5, and has a good separation effect, making it more widely applicable.

[0028] 2. The present invention uses a jig with a two-valve, two-membrane pulse water flow generation mechanism. Because the first chamber and the second chamber are unidirectionally connected, the water supply to the gravity separation tank is equal to the volume change of the second chamber, resulting in a large water supply to the gravity separation tank. This reduces the suction effect of mineral screen water and shortens the separation time.

[0029] 3. The jig using the three-valve, two-membrane pulse water flow generation mechanism of this invention, due to the one-way communication between the lower and upper chambers, will not be sucked into the gravity separation tank when the lower moving cone moves downward, thus reducing the suction effect of mineral screen water. The minerals are completely in a free fall state in the water flow of the gravity separation tank, so that the minerals are stratified according to their different densities, shortening the separation time.

[0030] 4. This invention does not require a separate water pump for pumping water. The water pumps used in the prior art have high power and high energy consumption. This invention uses a pulse water flow generating mechanism to create a positive and negative pressure difference to draw water in the circulating water tank, which is more energy-efficient. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a pulse water flow jig according to the present invention. Figure 1 .

[0032] Figure 2 This is a schematic diagram of the structure of a pulse water flow jig according to the present invention. Figure 2

[0033] Figure 3 This is a schematic diagram of the structure of a pulse water flow jig according to the present invention. Figure 3 .

[0034] Figure 4 This is a schematic diagram of the structure of a pulse water flow jig according to the present invention. Figure 4 .

[0035] Figure 5 This is a schematic diagram of the structure of a pulse water flow jig during operation according to the present invention. Figure 1 .

[0036] Figure 6 This is a schematic diagram of the structure of a pulse water flow jig during operation according to the present invention. Figure 2 .

[0037] Figure 7 This is a schematic diagram of the structure of a pulse water flow jig during operation according to the present invention. Figure 3 .

[0038] Figure 8 This is a schematic diagram of the structure of a pulse water flow jig during operation according to the present invention. Figure 4 .

[0039] Figure 9This is a schematic diagram of the pulse water flow generating mechanism and the oscillating mechanism.

[0040] Figure 10 This is a schematic diagram of the check valve. Figure 1 .

[0041] Figure 11 This is a schematic diagram of the check valve. Figure 2 .

[0042] The numbers in the attached diagram are as follows: 1 is the first chamber, 2 is the second chamber, 3 is the gravity separation tank, 4 is the circulating water tank, 5 is the lower valve box, 6 is the water flow cover, 7 is the positive pressure diaphragm, 8 is the lower moving cone, 9 is the upper valve box, 10 is the negative pressure diaphragm, 11 is the pipe, 12 is the transition box, 13 is the heavy material discharge hole, 14 is the discharge pipe, 15 is the regulating pipe, 16 is the check valve, 161 is the valve stem, 162 is the valve plate, 163 is the sealing gasket, 164 is the first limiting block, 165 is the second limiting block, 166 is the first rotating component, 167 is the second rotating component, 168 is the side wall of the jig, 169 is the water inlet, 170 is the connecting bolt, 171 is the fixing clamp, 17 is the jig frame, 18 is the eccentric mechanism, 19 is the connecting rod, 20 is the swing rod, 21 is the material trough, 22 is the triangular support, and 23 is the support shaft. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0044] like Figures 1-2As shown, a pulse-flow jig includes a jig frame 17, which is mounted on a circulating water tank 4. A gravity separation tank 3 is provided on the jig frame 17. A pulse-flow generating mechanism is provided between the circulating water tank 4 and the gravity separation tank 3. The pulse-flow generating mechanism includes a first chamber 1, which is unidirectionally connected to the circulating water tank 4 and the first chamber 1. The first chamber 1 is unidirectionally connected to a second chamber 2. Both the first chamber 1 and the second chamber 2 are variable-volume chambers. The second chamber 2 is bidirectionally connected to the gravity separation tank, forming a two-valve, two-membrane jig pulse-flow generating mechanism. The jig frame 17 also includes a swing mechanism that drives the volume changes of the first chamber 1 and the second chamber 2. One end of the swing mechanism is connected to the second chamber 2 and swings up and down, causing the volume of the first chamber 1 to decrease while the volume of the second chamber 2 increases, or vice versa. Water in the circulating water tank 4 enters the first chamber 1. Due to the volume change of the first chamber 1 and the second chamber 2, the water in the first chamber 1 enters the second chamber 2. Since the second chamber 2 is unidirectionally connected to the first chamber 1, when the volume of the second chamber 2 decreases, the water in the second chamber 2 will enter the gravity separation tank 3 to perform gravity separation on the material in the gravity separation tank 3. Since the water supply to the gravity separation tank 3 is equal to the volume change of the second chamber 2, the water supply to the gravity separation tank 3 is large, which reduces the suction effect of mineral screen water (water below the screen in the gravity separation tank) and shortens the separation time.

[0045] like Figure 3As shown, a pulse-flow jig includes a jig frame 17, which is mounted on a circulating water tank 4. A gravity separation tank 3 is provided on the jig frame 17. A pulse-flow generating mechanism is provided between the circulating water tank 4 and the gravity separation tank 3. The pulse-flow generating mechanism includes a first chamber 1, which is unidirectionally connected to the circulating water tank 4. A second chamber 2 is unidirectionally connected to the first chamber 1. The first chamber 1 is a variable-volume chamber. The second chamber 2 is divided into an upper chamber. The upper valve box 9 of the lower chamber is bidirectionally connected to the gravity separation tank, and the lower chamber is unidirectionally connected to the upper chamber. The lower chamber is a variable volume chamber, which constitutes the pulse water flow generation mechanism of the three-valve two-membrane jig. The jig frame 17 is also provided with a swing mechanism that drives the volume change of the first chamber 1 and the lower chamber. One end of the swing mechanism is connected to the second chamber 2 and swings up and down, so that while the volume of the first chamber 1 decreases, the volume of the lower chamber increases, or while the volume of the first chamber 1 increases, the volume of the lower chamber decreases. Water in the circulating water tank 4 enters the first chamber 1. Due to the volume change between the first chamber 1 and the lower chamber, water in the first chamber 1 enters the lower chamber. Since the lower chamber is unidirectionally connected to the first chamber 1, when the volume of the lower chamber decreases, water in the lower chamber will enter the upper chamber. Since the upper chamber is bidirectionally connected to the gravity separation tank 3, water in the upper chamber enters the gravity separation tank 3 to perform gravity separation on the material in the gravity separation tank 3. Since the lower chamber is unidirectionally connected to the upper chamber, when the volume of the lower chamber changes, it avoids suction effect on the gravity separation tank 3.

[0046] Both the first chamber 1 and the second chamber 2 are hollow structures with one end larger than the other, and the smaller ends of the second chamber 2 and the first chamber 1 are arranged in an up-down relative position.

[0047] like Figures 1-2 As shown, the first chamber 1 is a cavity formed by a lower valve box 5, a water flow cover 6, and a positive pressure diaphragm 7. The lower valve box 5 is fixed to the jig frame. The bottom of the lower valve box 5 is open and communicates unidirectionally with the water tank. The water flow cover 6 is fitted over the lower valve box 5. The water flow cover 6 and the lower valve box 5 are sealed together by the positive pressure diaphragm 7. As the positive pressure diaphragm 7 gradually expands, the volume of the first chamber 1 increases. Water in the water tank enters the first chamber 1 through the lower valve box 5, that is, water enters the space between the lower valve box 5 and the water flow cover 6, the pipe 11, and the transition box 12. The transition box 12 is a right-angled triangular prism, and its inclined surface is connected to the lower moving cone 8. As the positive pressure diaphragm 7 gradually compresses, the volume of the first chamber 1 decreases. Water in the first chamber 1 enters the second chamber 2 through the lower moving cone 8.

[0048] The second chamber 2 is an open-top cavity formed by the lower moving cone 8 and the negative pressure diaphragm 10, with the lower end of the negative pressure diaphragm 10 connected to the lower moving cone 8. The upper end of the negative pressure diaphragm 10 is connected to the jig frame 17. As the negative pressure diaphragm 10 gradually expands, the volume of the second chamber 2 increases, and water in the first chamber 1 enters the second chamber 2 through the lower moving cone 8. As the negative pressure diaphragm 10 gradually compresses, the volume of the second chamber 2 decreases, and the lower moving cone 8 pushes the water in the second chamber 2 into the gravity separation tank for gravity separation of the material in the gravity separation tank. In this embodiment, both the positive pressure diaphragm 7 and the negative pressure diaphragm 10 are commonly used jig diaphragms in the art. The main purpose of the positive pressure diaphragm 7 is to pressurize water into the second chamber 2, while the main purpose of the negative pressure diaphragm 10 is to draw water from the first chamber 1 into the second chamber 2.

[0049] like Figure 3 As shown, when the upper valve box 9 is installed in the second chamber 2, the upper valve box 9 and the lower moving cone 8 are sealed together by a negative pressure diaphragm 10. The upper valve box 9 is connected to the jig frame 17. The space between the upper valve box 9, the negative pressure diaphragm 10, and the lower moving cone 8 constitutes the lower chamber, and the space inside the upper valve box 9 is the upper chamber. The negative pressure diaphragm 10 gradually expands, increasing the volume of the lower chamber, and water in the first chamber 1 enters the lower chamber through the lower moving cone 8; the negative pressure diaphragm 10 gradually compresses, decreasing the volume of the lower chamber, and water in the lower chamber enters the upper chamber through the upper valve box 9.

[0050] Both the lower valve box 5 and the water flow cover 6 are hollow frustum shapes, the lower moving cone 8 is a hollow inverted frustum shape, and the upper valve box 9 is a hollow inverted frustum shape. The top surfaces of the frustum shapes of the lower valve box 5 and the upper valve box 9 are vertically opposite each other. When water flows in the jig, the frustum-shaped structure can increase the water flow rate per unit time.

[0051] In one possible implementation, there are two lower valve boxes 5 and two lower moving cones 8, with the upper ends of the two lower moving cones 8 connected to the lower end of the negative pressure diaphragm 10. When an upper valve box 9 is provided in the second chamber 2, each lower moving cone 8 contains one upper valve box 9, and the upper ends of the two upper valve boxes 9 are connected to the upper end of the negative pressure diaphragm 10. The water flow rate is increased by using two lower valve boxes 5 and two upper valve boxes 9.

[0052] The lower moving cone 8 has a heavy material discharge hole 13 at its bottom, which is connected to a discharge pipe 14. When an upper valve box 9 is installed in the second chamber 2, the upper valve box 9 also has a heavy material discharge hole 13 at its bottom, which is connected to a discharge pipe 14. The discharge pipe 14 passes through the lower moving cone 8. Fine heavy materials contained in the material will pass through the screen in the gravity separation tank and fall onto the upper valve box 9. The fine heavy materials are then discharged outside the mechanism through the heavy material discharge hole 13 and the discharge pipe 14.

[0053] A pipe 11 is provided between the water flow cover 6 and the lower moving cone 8. The lower end of the pipe 11 is bidirectionally connected to the water flow cover 6, and the upper end is unidirectionally connected to the lower moving cone 8. A transition box 12 is provided between the upper end of the pipe 11 and the lower moving cone 8. One side of the transition box 12 is unidirectionally connected to the lower moving cone 8, and the bottom of the transition box 12 is bidirectionally connected to the top of the pipe 11. The water flow cover 6 and the lower moving cone 8 are connected by the pipe 11 and the transition box 12. The transition box 12 serves as a transition box to increase the water flow rate.

[0054] The water flow cover 6 is equipped with a regulating pipe 15, and the regulating pipe 15 is equipped with a one-way adjustable valve. When re-selecting easily selectable materials, air can be introduced into the first chamber 1 through the regulating pipe 15 or some of the water in the first chamber 1 can be discharged outward, which can reduce the water supply of the mechanism.

[0055] The volume change of the first chamber 1 of the pulse water flow generating mechanism of the two-valve two-membrane jig is equal to the volume change of the second chamber 2; ensuring that when the volume of the second chamber 2 increases, the amount of water supplied from the first chamber 1 to the second chamber is equal to the volume change of the second chamber 2.

[0056] The volume change of the first chamber 1 of the pulse water flow generation mechanism of the three-valve two-membrane jig is equal to the volume change of the lower chamber. This ensures that when the volume of the lower chamber increases, water enters the lower chamber from the first chamber 1, and the amount of water replenished from the first chamber 1 to the lower chamber is equal to the volume change of the lower chamber.

[0057] like Figures 10-11As shown, the one-way connection uses a one-way valve or a check valve 16. The check valve 16 includes a jig sidewall 168, on which a valve stem 161 is provided. One end of the valve stem 161 is rotatably connected to the jig sidewall 168, and the other end is rotatably connected to a valve plate 162. A first limiting block 164 and a second limiting block 165 are respectively provided at both ends of the valve stem 161. The first limiting block 164 is a hill-shaped protrusion, and the second limiting block 165 includes a rectangular portion and a curved portion located at the top of the rectangular portion. The bottom of the rectangular portion... Connected to valve stem 161, the first limiting block 164 is close to the jig side wall 168 and limits the rotation angle of valve stem 161 relative to jig side wall 168. The second limiting block 165 is close to valve plate 162 and limits the rotation angle of valve plate 162 relative to valve stem 161. A water inlet 169 is provided on the jig side wall 168 corresponding to the sealing gasket 163. A sealing gasket 163 is fixed on one side of valve plate 162 corresponding to the water inlet 169. The area of ​​the water inlet 169 is smaller than the area of ​​the sealing gasket 163. The maximum rotation angle of valve plate relative to valve stem is 10° to 20°, and the maximum rotation angle of valve stem 161 relative to jig side wall 168 is 30° to 80°. Water below the jig side wall 168 exerts a pushing force on the sealing gasket 163 at the water inlet 169, causing the valve stem 161 to rotate and opening the check valve. Water flows through the check valve. When the valve stem 161 rotates to its maximum rotation angle relative to the jig side wall 168, the first limit block 164 presses against the jig side wall 168 to prevent the valve stem 161 from continuing to rotate. Water passing through the water inlet 169 will then hit the lower surface of the sealing gasket 163, causing the valve plate 162 to rotate. To reduce the thrust on the check valve, the second limit block 165 restricts the rotation angle of the valve plate 162, so that the maximum rotation angle of the valve plate 162 relative to the valve stem 161 is 10° to 20°, preventing the rotation angle from being too large and causing it to fail to close properly. After the water below the jig side wall 168 stops, the water above the jig side wall 168 presses on the upper surface of the valve plate 162, causing the valve stem 161 to rotate and cover the sealing gasket 163 on the water inlet 169, thus closing the check valve.

[0058] A fixing plate 171 is provided on the lower surface of the sealing gasket 163. The area of ​​the fixing plate 171 is smaller than the area of ​​the water inlet 169. A connecting bolt 170 is provided on the valve plate 162, which connects the valve plate 162, the sealing gasket 163, and the fixing plate 171. This ensures connection stability and prevents the sealing gasket 163 from falling off when the valve plate 162 rotates frequently.

[0059] The jig's sidewall 168 is provided with a first rotating component 166, and two first rotating components 166 are arranged on both sides of the valve stem 161. A first rotating shaft is provided on each first rotating component 166, connecting the two first rotating components 166 and the valve stem 161. A second rotating component 167 is provided on the upper surface of the valve plate 162, and two second rotating components 167 are arranged on both sides of the valve stem 161. A second rotating shaft is provided on each second rotating component 167, connecting the two second rotating components 167 and the valve stem 161. The first rotating components 166 and the second rotating components 167 serve as transitional components for rotational connection, reducing wear on the check valve during high-frequency opening and closing.

[0060] When the check valve 16 is in use, the water below the side wall 168 of the jig exerts a pushing force on the sealing gasket 163 at the water inlet 169, causing the valve stem 161 to rotate around the first rotating member 166. When the valve stem 161 rotates to its maximum rotation angle relative to the side wall 168 of the jig (the maximum rotation angle can be 30°, 40°, 45°, 50°, 60°, 70°, or 80°), the first limiting block 164 presses against the side wall 168 of the jig, preventing the valve stem 161 from continuing to rotate. The water passing through the water inlet 169 will hit the lower surface of the sealing gasket 163, causing the valve plate 162 to rotate, reducing the pushing force on the check valve. The limiting block 165 restricts the rotation angle of the valve plate 162. The maximum rotation angle can be (10°, 15°, 20°) to prevent the valve plate 162 from failing to close properly due to excessive rotation angle. After the water below the side wall 168 of the jig stops flowing to the water inlet 169, the water above the side wall 168 of the jig presses on the upper surface of the valve plate 162, causing the valve stem 161 to rotate and cover the sealing gasket 163 on the water inlet 169, thus closing the check valve. The first rotating part 166 and the second rotating part 167 serve as transitional parts for rotational connection, reducing the wear of the check valve during high-frequency opening and closing and increasing the service life of the check valve on the jig.

[0061] At least one check valve or check valve 16 is provided on each side wall of the lower valve box 5 and the upper valve box 9, and at least one check valve or check valve 16 is provided on the side wall of the lower moving cone 8 and the transition box 12 which are in one-way communication.

[0062] The swing mechanism includes a motor, an eccentric mechanism 18, a connecting rod 19, and a swing arm 20. The output end of the motor is connected to the eccentric mechanism 18, the eccentric mechanism 18 is connected to one end of the connecting rod 19, the other end of the connecting rod 19 is connected to the swing arm 20, and the other end of the swing arm 20 is connected to the second chamber 2. The eccentric mechanism 18 includes a circular turntable, the output end of the motor is connected to the center of the turntable, and the connecting rod 19 is rotatably connected to a part of the turntable that is not at the center. The motor drives the eccentric mechanism 18 to rotate, changing the height position of the connecting rod 19, thereby causing the connection end of the swing arm 20 with the second chamber 2 to reciprocate up and down.

[0063] The jig pulse water flow generating mechanism may be one or two. When there are two pulse water flow generating mechanisms, such as... Figure 9 As shown, a triangular bracket 22 fixed to the jig frame is provided between the two jig pulse water flow generating mechanisms. The triangular bracket 22 is rotatably connected to a swing rod 20 via a bracket pivot 23. The swing rod 20 is rotatably connected to the outer walls of the two lower moving cones 8, and the swing rod 20 drives the two lower moving cones 8 to perform alternating up-and-down reciprocating motions. When there is only one jig pulse water flow generating mechanism, such as... Figure 1 As shown, a triangular bracket 22 fixed on the jig frame is provided between the jig pulse water flow generating mechanism and the eccentric mechanism 18. The triangular bracket 22 is rotatably connected to the swing rod 20 via the bracket pivot 23. The swing rod 20 is rotatably connected to the outer wall of the lower moving cone 8, and the swing rod 20 drives the lower moving cone 8 to perform up-and-down reciprocating motion. The eccentric mechanism 18 drives the connecting rod 19 to perform eccentric motion. The triangular bracket 22 serves as a support point and is rotatably connected to the swing rod 20 via the bracket pivot 23, causing the swing rod 20 to drive the lower moving cone 8 to perform up-and-down reciprocating motion.

[0064] like Figure 4 As shown, a material trough 21 is provided below one side of the outlet end of the gravity separation tank 3, and the material trough 21 is connected to the circulating water tank 4. The circulating water in the gravity separation tank 3 re-selects the material and exits from the outlet end of the gravity separation tank 3 into the material trough 21, and then enters the circulating water tank 4 through the material trough 21 to form a water recycling system.

[0065] like Figures 5-6As shown in Example 1, when the jig uses a two-valve, two-diaphragm jig pulse water flow generating mechanism, the motor drives the eccentric mechanism 18 to drive the connecting rod 19 to perform eccentric motion, causing the swing rod 20 to drive the lower moving cone 8 to perform up-and-down reciprocating motion, causing the volume of the first chamber 1 and the second chamber 2 to change alternately. When the volume of the first chamber 1 increases, the volume of the second chamber 2 decreases, the positive pressure diaphragm 7 is in a gradually expanding state, and the negative pressure diaphragm 10 is in a gradually compressing state. Water in the circulating water tank 4 enters the first chamber 1 through the lower valve box 5, and the lower moving cone 8 pushes the water in the second chamber 2 into the gravity separation tank 3 to perform gravity separation on the material in the gravity separation tank 3; when the volume of the first chamber 1 decreases, the positive pressure diaphragm 7 is in a gradually compressing state, the volume of the second chamber 2 increases, and the negative pressure diaphragm 10 is in a gradually expanding state, causing the volume of the first chamber 1 to change alternately. Water enters the second chamber 2 through the lower moving cone 8, repeating the above process. The alternating changes in the volume of the chambers transport water from the circulating water tank 4 to the gravity separation tank 3, generating a pulsed water flow. This gravity separation process is used to separate the material in the gravity separation tank 3. After the material is separated, the circulating water in the gravity separation tank 3 exits from the outlet end of the gravity separation tank 3 and enters the material trough 21. Then, it enters the circulating water tank 4 through the material trough 21, forming a water recycling system. Since the volume change of the first chamber 1 is equal to the volume change of the second chamber 2, the water supply to the gravity separation tank 3 is equal to the volume change of the second chamber 2. The large water supply to the gravity separation tank 3 reduces the suction effect of mineral screen water, causing the minerals to stratify according to their density, shortening the separation time, and improving the gravity separation efficiency of the material. This allows for the effective separation of difficult-to-separate materials (materials with a mineral density difference of 0.5 to 1).

[0066] In Example 2, when the jig uses a two-valve, two-membrane jig pulse water flow generating mechanism, when performing gravity separation on easily selectable materials (materials with a mineral density difference greater than 1), air can be introduced into the first chamber 1 through the regulating pipe 15 or a portion of the water in the first chamber 1 can be discharged outwards. This reduces the water supply to the gravity separation tank 3 during the upward movement of the lower moving cone 8. During the downward movement of the lower moving cone 8, due to the reduced water supply to the gravity separation tank 3, the second chamber 2 will have a suction effect on the mineral screening water. The pulse water flow generated by the mechanism becomes a sinusoidal water flow, making the jig more widely applicable.

[0067] like Figures 7-8As shown in Example 3, when the jig uses the three-valve, two-membrane jig pulse water flow generating mechanism, the motor drives the eccentric mechanism 18 to drive the connecting rod 19 to perform eccentric motion, causing the swing rod 20 to drive the lower moving cone 8 to perform up-and-down reciprocating motion, causing the volumes of the first chamber 1 and the lower chamber to change alternately. When the volume of the first chamber 1 increases, the volume of the lower chamber decreases, the positive pressure diaphragm 7 is in a gradually expanding state, and the negative pressure diaphragm 10 is in a gradually compressing state. Water in the circulating water tank 4 enters the first chamber 1 through the lower valve box 5, and water in the lower chamber enters the upper chamber through the upper valve box 9. Since the upper chamber is bidirectionally connected to the gravity separation tank 3, water in the upper chamber enters the gravity separation tank 3 to perform gravity separation on the material in the gravity separation tank 3. When the volume of the first chamber 1 decreases, the positive pressure diaphragm 7 is in a gradually compressing state, the volume of the lower chamber increases, and the negative pressure diaphragm 10... The water in the first chamber 1 is gradually relaxed. Water enters the lower chamber through the lower moving cone 8. The above process is repeated. The water in the circulating water tank 4 is transported to the gravity separation tank 3 through the alternating change of the chamber volume to generate pulse water flow. The material in the gravity separation tank 3 is gravity separated. After the material is gravity separated, the circulating water in the gravity separation tank 3 exits from the outlet end of the gravity separation tank 3 and enters the material tank 21. Then, it enters the circulating water tank 4 through the material tank 21 to form water recycling. Since the lower chamber and the upper chamber are unidirectionally connected, the volume change of the lower chamber and the first chamber will not have a suction effect on the gravity separation tank 3. The minerals are completely in a free fall state in the water flow of the gravity separation tank 3, so that the minerals are stratified according to their different densities, which shortens the separation time and improves the gravity separation efficiency of the material. It can separate difficult-to-separate materials (materials with a mineral density difference of 0.5 to 1).

[0068] Compared to Example 4, in this invention, based on the pulse water flow generating mechanism of the three-valve two-membrane jig, if the lower valve box 5, water flow cover 6, and positive pressure diaphragm 7 are not included, then the pipe 11 and transition box 12 are bidirectionally connected to the water tank. When the volume of the lower chamber increases, the negative pressure diaphragm 10 is in a gradually expanding state. The lower chamber is in a negative pressure state, drawing water from the pipe 11 and transition box 12 into the lower chamber. During the drawing process, some air may be present. When the volume of the lower chamber decreases, the negative pressure diaphragm 10 is in a gradually compressing state. The water in the lower chamber and any air present enter the upper chamber through the lower valve box 9. Since the upper chamber is bidirectionally connected to the gravity separation tank 4, the water in the upper chamber enters the gravity separation tank 4 to perform gravity separation on the material. Due to the air dissipation, it will have an suction effect on the water in the gravity separation tank 4. The water flow formed into the gravity separation tank 4 is a sinusoidal water flow. When facing easily selectable materials, this embodiment enables the pulse water flow generating mechanism to generate a sinusoidal water flow, which can perform gravity separation on easily selectable materials.

[0069] A method for generating pulsed water flow in a two-valve, two-diaphragm jig includes the following steps:

[0070] S1. When the lower moving cone 8 moves downward, the lower moving cone 8 moves downward along with the water flow cover 6, causing the negative pressure diaphragm 10 to expand and the positive pressure diaphragm 7 to compress, thus reducing the space in the first chamber 1 and increasing the space in the second chamber 2. Since the circulating water tank 4 is connected to the first chamber 1 in one direction, the circulating water in the first chamber 1 flows into the second chamber 2 from the check valve 16 on the lower moving cone 8.

[0071] S2. When the lower moving cone 8 moves upward, the lower moving cone 8 moves upward along with the water flow cover 6, which compresses the negative pressure diaphragm 10 and relaxes the positive pressure diaphragm 7, increasing the space in the first chamber 1 and decreasing the space in the second chamber 2. Since the first chamber 1 and the second chamber 2 are connected in one direction, the circulating water in the jig's circulating water tank 4 enters the first chamber 1 through the check valve 16 on the lower valve box 5. At the same time, the circulating water in the second chamber 2 enters the gravity separation tank 3 under the thrust of the lower moving cone 8, and performs gravity separation on the material in the gravity separation tank 3.

[0072] S3. The circulating water starts from the jig circulating water tank 4, enters the first chamber 1 after one upward movement of the lower moving cone 8, enters the second chamber 2 after one downward movement of the lower moving cone 8, and finally enters the gravity separation tank 3 after one upward movement of the lower moving cone 8.

[0073] S4. Repeat the above steps to create a pulsed flow of circulating water entering the gravity separation tank 3, which throws the material in the gravity separation tank 3 up for gravity separation. When the lower moving cone 8 moves downward, the water in the gravity separation tank 3 will not be sucked in due to the downward movement of the lower moving cone 8, reducing the suction effect of mineral underflow. The minerals are in a state of free fall in the water flow of the gravity separation tank 3, allowing the minerals to be stratified according to their density, thus shortening the separation time.

[0074] The method for generating pulse water flow in a three-valve, two-membrane jig includes the following steps:

[0075] S1. When the lower moving cone 8 moves downward, the lower moving cone 8 moves downward along with the water flow cover 6, causing the negative pressure diaphragm 10 to expand and the positive pressure diaphragm 7 to compress, which reduces the space in the first chamber 1 and increases the space in the lower chamber. Since the circulating water tank 4 is connected to the first chamber 1 in one direction, the circulating water in the first chamber 1 flows into the lower chamber from the check valve 16 on the lower moving cone 8.

[0076] S2. When the lower moving cone 8 moves upward, the lower moving cone 8 moves upward along with the water flow cover 6, causing the negative pressure diaphragm 10 to compress and the positive pressure diaphragm 7 to relax, increasing the space in the first chamber 1 and decreasing the space in the lower chamber. Since the first chamber 1 and the lower chamber are connected in one direction, the circulating water in the circulating water tank 4 enters the first chamber 1 through the check valve 16 on the lower valve box 5. At the same time, the circulating water in the lower chamber enters the upper chamber through the check valve 16 on the upper valve box 9. Since the upper chamber and the gravity separation tank 3 are connected in two directions, the circulating water entering the upper chamber enters the gravity separation tank 3.

[0077] S3. The circulating water starts from the circulating water tank 4, enters the first chamber 1 after one upward movement of the lower moving cone 8, enters the lower chamber after one downward movement of the lower moving cone 8, and finally enters the upper chamber after one upward movement of the lower moving cone 8. When the water in the lower chamber enters the upper chamber, the water in the upper chamber enters the gravity separation tank 3 and throws the material in the gravity separation tank 3 up.

[0078] S4. Repeat the above steps to make the circulating water entering the gravity separation tank 3 form a pulse water flow, which throws the material in the gravity separation tank 3 up and performs gravity separation on the material. Since the lower chamber and the upper chamber are connected in one direction, when the lower moving cone 8 moves downward, the water flow in the gravity separation tank 3 will not be sucked in by the downward movement of the lower moving cone 8, reducing the suction effect of the mineral screen water. The minerals are completely in a free fall state in the water flow of the gravity separation tank 3, so that the minerals are stratified according to different densities, shortening the separation time.

[0079] The method described in this invention does not require a separate water pump for pumping water. The water pumps used in the prior art have high power and high energy consumption. This invention uses a pulse water flow generating mechanism to create a positive and negative pressure difference to draw in the water in the circulating water tank 4, which is more energy-efficient.

[0080] The embodiments described above are merely preferred embodiments of the invention and are not intended to limit the scope of the invention. Therefore, any equivalent changes or modifications made to the technical solutions described in the claims of this invention should be included within the scope of the patent application of this invention.

Claims

1. A pulse-flow jigging machine, comprising a jigging frame (17), the jigging frame (17) being disposed on a circulating water tank (4), and the jigging frame (17) being provided with a gravity separation tank (3), characterized in that, A pulse water flow generating mechanism is provided between the circulating water tank (4) and the gravity separation tank (3). The pulse water flow generating mechanism includes a first chamber (1). The circulating water tank (4) is unidirectionally connected to the first chamber (1). The first chamber (1) is unidirectionally connected to a second chamber (2). The first chamber (1) and the second chamber (2) are both variable volume chambers. The second chamber (2) is bidirectionally connected to the gravity separation tank, forming a pulse water flow generating mechanism for a two-valve two-membrane jig. The jig frame (17) is also provided with a swing mechanism that drives the volume change of the first chamber (1) and the second chamber (2). One end of the swing mechanism is connected to the second chamber (2) and swings up and down. When the volume of the first chamber (1) decreases, the volume of the second chamber (2) increases, or when the volume of the first chamber (1) increases, the volume of the second chamber (2) decreases. The first chamber (1) is a cavity formed by a lower valve box (5), a water flow cover (6) and a positive pressure diaphragm (7). The bottom of the lower valve box (5) is open, and the water flow cover (6) is fitted outside the lower valve box (5). The water flow cover (6) and the lower valve box (5) are sealed together by the positive pressure diaphragm (7). The second chamber (2) is a cavity with an open upper end, which is formed by the lower moving cone (8) and the negative pressure diaphragm (10), and the lower end of the negative pressure diaphragm (10) is connected to the lower moving cone (8).

2. The pulse water flow jig according to claim 1, characterized in that, The first chamber (1) and the second chamber (2) are both hollow structures with one end larger than the other. The small ends of the second chamber (2) and the first chamber (1) are arranged in a vertically opposite manner.

3. The pulse water flow jig according to claim 1, characterized in that, A pipe (11) is provided between the water flow cover (6) and the lower moving cone (8). The lower end of the pipe (11) is bidirectionally connected to the water flow cover (6). A transition box (12) is provided between the upper end of the pipe (11) and the lower moving cone (8). One side of the transition box (12) is unidirectionally connected to the lower moving cone (8). The bottom of the transition box (12) is bidirectionally connected to the top of the pipe (11).

4. The pulse water flow jig according to claim 1, characterized in that, The water flow cover (6) is provided with an adjustment pipe (15), and the adjustment pipe (15) is provided with a one-way adjustable valve.

5. The pulse water flow jig according to claim 1, characterized in that, The volume change of the first chamber (1) of the pulse water flow generating mechanism of the two-valve two-membrane jig is equal to the volume change of the second chamber (2).

6. The pulse water flow jig according to claim 1, characterized in that, The one-way connection is made using a one-way valve or a check valve (16).

7. The pulse water flow jig according to claim 6, characterized in that, The check valve (16) includes a jig sidewall (168), on which a valve stem (161) is provided. One end of the valve stem (161) is rotatably connected to the jig sidewall (168), and the other end is rotatably connected to a valve plate (162). A first limiting block (164) and a second limiting block (165) are respectively provided at both ends of the valve stem (161). The first limiting block (164) is close to the jig sidewall (168) and limits the rotation angle of the valve stem (161) relative to the jig sidewall (168). 61) The maximum rotation angle relative to the side wall (168) of the jig is 30° to 80°. The second limiting block (165) is close to the valve plate (162) and limits the rotation angle of the valve plate (162) relative to the valve stem (161). The maximum rotation angle of the valve plate (162) relative to the valve stem (161) is 10° to 20°. A water inlet (169) is provided on the side wall (168) of the jig corresponding to the sealing gasket (163). A sealing gasket (163) is fixed on one side of the valve plate (162) corresponding to the water inlet (169).

8. A pulse-flow jigging machine, comprising a jigging frame (17), the jigging frame (17) being disposed on a circulating water tank (4), and the jigging frame (17) being provided with a gravity separation tank (3), characterized in that, A pulse water flow generating mechanism is provided between the circulating water tank (4) and the reselection tank (3). The pulse water flow generating mechanism includes a first chamber (1). The circulating water tank (4) and the first chamber (1) are connected in one direction. The first chamber (1) is connected in one direction to a second chamber (2). The first chamber (1) is a variable volume chamber. The first chamber (1) is a cavity formed by a lower valve box (5), a water flow cover (6) and a positive pressure diaphragm (7). The lower valve box (5) is open at the bottom, and the water flow cover (6) is fitted over the lower valve box (5). The water flow cover (6) and the lower valve box (5) are sealed together by the positive pressure diaphragm (7). The second chamber (2) is a cavity formed by a lower moving cone (8) and a negative pressure diaphragm (10) with an open upper end. The lower end of the negative pressure diaphragm (10) is connected to the lower moving cone (8). The second chamber (2) is provided with an upper valve box (9) that divides the second chamber (2) into an upper chamber and a lower chamber. The upper chamber is bidirectionally connected to the reselection tank, and the lower chamber is unidirectionally connected to the upper chamber. The lower chamber is a variable volume chamber, which constitutes a pulse water flow generation mechanism for a three-valve two-membrane jig. The jig frame (17) is also provided with a swing mechanism that drives the volume changes of the first chamber (1) and the lower chamber. One end of the swing mechanism is connected to the second chamber (2) and swings up and down. This causes the volume of the first chamber (1) to decrease while the volume of the lower chamber increases, or causes the volume of the first chamber (1) to increase while the volume of the lower chamber decreases. The upper valve box (9) and the lower moving cone (8) are sealed together by a negative pressure diaphragm (10). The space between the upper valve box (9), the negative pressure diaphragm (10) and the lower moving cone (8) constitutes the lower chamber, and the space inside the upper valve box (9) is the upper chamber.

9. The pulse water flow jig according to claim 8, characterized in that, The volume change of the first chamber (1) of the pulse water flow generating mechanism of the three-valve two-membrane jig is equal to the volume change of the lower chamber.

10. A pulse water flow jig according to claim 8, characterized in that, The one-way connection is made using a one-way valve or a check valve (16).

11. The pulse water flow jig according to claim 10, characterized in that, The check valve (16) includes a jig sidewall (168), on which a valve stem (161) is provided. One end of the valve stem (161) is rotatably connected to the jig sidewall (168), and the other end is rotatably connected to a valve plate (162). A first limiting block (164) and a second limiting block (165) are respectively provided at both ends of the valve stem (161). The first limiting block (164) is close to the jig sidewall (168) and limits the rotation angle of the valve stem (161) relative to the jig sidewall (168). 61) The maximum rotation angle relative to the side wall (168) of the jig is 30° to 80°. The second limiting block (165) is close to the valve plate (162) and limits the rotation angle of the valve plate (162) relative to the valve stem (161). The maximum rotation angle of the valve plate (162) relative to the valve stem (161) is 10° to 20°. A water inlet (169) is provided on the side wall (168) of the jig corresponding to the sealing gasket (163). A sealing gasket (163) is fixed on one side of the valve plate (162) corresponding to the water inlet (169).

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