Low-grade copper-sulfur ore pre-selecting and waste-discarding equipment and process

Abstract

The invention relates to a low-grade copper-sulfur ore pre-concentration waste-throwing device and process, and belongs to the technical field of low-grade copper-sulfur ore pre-concentration waste-throwing equipment.The low-grade copper-sulfur ore pre-concentration waste-throwing device comprises a supporting frame, an L-shaped flow guide cylinder used for flow guide is fixedly installed on the top face of the supporting frame, and an L-shaped partition plate used for partition is fixedly installed at the center of the interior of the L-shaped flow guide cylinder; water flow is additionally conveyed to the bottoms of the sieve plates, the water flow on the lower portion scours, direct friction of particles is reduced, then abrasion of the sieve plates can be reduced, the water flow can loosen a bed layer, separation of light particles and heavy particles according to density is promoted, and the sorting precision is improved; gas can be correspondingly conveyed, the conveyed gas can accelerate upward penetration of water flow, strengthen loosening of a bed layer and promote settling and falling of heavy particles, the conveyed gas pressure shares power loads of part of structures, and the service life of the structures in the device is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-grade copper-sulfur ore pre-selection and waste-throwing equipment, in particular to a low-grade copper-sulfur ore pre-selection and waste-throwing equipment and process. BACKGROUND

[0002] The low-grade copper-sulfur ore pre-selection and waste-throwing equipment is a key device for pre-sorting low-grade copper-sulfur ore before entering the formal ore dressing process, removing waste rock and improving the grade of the selected ore. The common low-grade copper-sulfur ore pre-selection and waste-throwing equipment is a jig.

[0003] During the use of the low-grade copper-sulfur ore pre-selection and waste-throwing equipment, the following problems may occur:

[0004] During the pre-selection and waste-throwing process of the traditional device, the screen plate aperture may be too large or severely worn. The large-aperture screen plate may cause blockage during use, which may lead to the problem of fine-grained copper-sulfur minerals leaking into the tailings. The water flow pulsation impact strength during the pre-selection and waste-throwing process of the device may be reduced due to blockage, and the output effect of the pulse may be reduced due to the increased gap between the structures during use, thereby affecting the pre-selection and waste-throwing effect of the low-grade copper-sulfur ore. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a low-grade copper-sulfur ore pre-selection and waste-throwing equipment and process, which solves the problem that the screen plate aperture may be too large or severely worn during the pre-selection and waste-throwing process of the traditional device, and the problem that the low-grade copper-sulfur ore pre-selection and waste-throwing effect may be affected due to the low pulse force during the use of the traditional device.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a low-grade copper-sulfur ore pre-selection and waste-throwing equipment, comprising a support frame, a L-shaped flow guide cylinder for guiding flow is fixedly installed on the top surface of the support frame, and a L-shaped partition plate for partitioning is fixedly installed at the center of the inside of the L-shaped flow guide cylinder, and screen plates for screening are fixedly installed on the left and right sides of the L-shaped partition plate, L-shaped flow guide cylinder bottom surfaces on the left and right sides of the L-shaped partition plate are fixedly installed with guide cone groove blocks for sealing and guiding flow, a discharge pipe is fixedly installed below the front of the guide cone groove blocks, and an output motor for power output is fixedly installed on the upper side of the front of the L-shaped flow guide cylinder through a fixed connecting frame, a conveying assembly for pulse conveying is connected to the output end of the output motor through a power transmission assembly, and a gas conveying assembly for gas conveying is fixedly installed on the left and right sides of the top surface of the L-shaped flow guide cylinder below the conveying assembly;

[0007] The L-shaped flow guide cylinder is internally provided with Z-shaped cavities for guiding on both sides of the front and back of the two screen plates, and the right side of the inner wall of the two Z-shaped cavities is fixedly provided with a liquid conveying pipe for conveying, and the opposite sides of the inner wall of the two Z-shaped cavities are provided with a plurality of flow guiding holes for guiding on one side of the corresponding screen plate, and the flow guiding hole is an inclined round hole structure, and the side of the flow guiding hole close to the screen plate is lower than the side away from the screen plate by twice.

[0008] Further, the power transmission assembly comprises a first pulley fixedly installed at the output end of the output motor, the surface of the first pulley is connected with a second pulley through a clamping belt, the rear of the second pulley is fixedly installed with a rotating vertical rod for rotation, and the rod wall of the rotating vertical rod is rotatably installed with a connecting shaft rod for connection on the upper side of the conveying assembly.

[0009] Further, the conveying assembly comprises a rotating horizontal rod and a vertical shaft rod fixedly installed on the rod wall of the rotating horizontal rod, and the left and right sides of the surface of the rotating horizontal rod are provided with extrusion assemblies for extrusion.

[0010] The extrusion assembly comprises an extrusion groove block rotatably installed on the surface of the rotating horizontal rod, the bottom surface of the extrusion groove block is fixedly installed with a limiting cylinder through a fixed first vertical rod, and the bottom surface of the limiting cylinder is fixedly installed with a push disc for pushing liquid through a fixed second vertical rod.

[0011] Further, the gas conveying assembly comprises a fixed disc fixedly installed on one side of the top surface of the L-shaped flow guide cylinder, the circumferential side of the top surface of the fixed disc is fixedly installed with a limiting top ring for guiding through a plurality of fixed limiting vertical rods, the inner wall of the limiting top ring is fixedly installed with an arc head rod for pressing through a sliding moving column, the upper side of the rod wall of the limiting vertical rod is fixedly installed with a gas bag for gas output through a sliding extrusion hole block, a spring for elastic pushing is sleeved on the lower side of the rod wall of the limiting vertical rod below the extrusion hole block, the upper side of the rear of the gas bag is fixedly installed with an L-shaped suction pipe for suction, and the lower side of the front of the gas bag is fixedly installed with an air outlet hose for air outlet, the rear end of the air outlet hose extends to the inside of the L-shaped flow guide cylinder through the front of the L-shaped flow guide cylinder, and the pipe wall of the L-shaped suction pipe and the pipe wall of the air outlet hose are provided with check valves for check.

[0012] Further, the L-shaped partition plate comprises an L-shaped plate and an inclined plate fixedly installed on the top of the L-shaped plate, the inclined plate is inclined to the right, the right side is higher than the left side, and the left side of the screen plate is lower than the right side of the screen plate by ten centimeters.

[0013] Further, the front side of the top surface of the L-shaped flow guide cylinder is stepped and left low and right high, and the output motor is located on the left side of the top surface of the connecting frame.

[0014] Further, the rear end of the rotating longitudinal rod is rotationally connected with the front face of the L-shaped flow guide cylinder, and the front side of the rod wall of the rotating longitudinal rod is rotationally connected with the top face of the connecting frame through a U-shaped connecting piece, and the rotating longitudinal rod is a crank connecting rod structure.

[0015] Further, the rear end of the rotating longitudinal rod is rotationally connected with the front face of the L-shaped flow guide cylinder, and the front end of the longitudinal shaft is fixedly installed with the bottom face of the connecting frame through a rotating connecting block, and the right side of the top face of the rotating transverse rod is rotationally connected with the surface of the connecting shaft through two square blocks, and the bottom faces of the two limiting cylinders extend through the top face of the L-shaped flow guide cylinder to the inside of the L-shaped flow guide cylinder.

[0016] Further, the several limiting vertical rods are arranged in a circular array on the top of the fixed disc, and the check valve on the L-shaped suction pipe wall is opposite to the check valve on the air outlet hose wall in the check valve direction.

[0017] A low-grade copper-sulfur ore pre-selection and waste-throwing process, comprising the following steps:

[0018] Step one, product addition, which is to add the ground low-grade copper-sulfur ore and water into the L-shaped flow guide cylinder, and to add at the highest position on the right side of the L-shaped flow guide cylinder, and in the process of adding the ground low-grade copper-sulfur ore and water, the discharge pipe is in a closed state, and the addition of the product is completed with the addition of the ground low-grade copper-sulfur ore and water.

[0019] Step two, device layered pulse, which is that the output motor drives the second belt pulley on the belt to rotate through the first belt pulley, the second belt pulley drives the connecting shaft to move up and down through the rotating longitudinal rod, the up and down movement of the connecting shaft drives the rotating transverse rod to swing around the longitudinal shaft, and the swinging of the rotating transverse rod drives the pushing disc on the extrusion assembly to extrude and impact the water in the L-shaped flow guide cylinder, and in the process of the extrusion assembly being pulsed and impacted into the L-shaped flow guide cylinder by the rotating transverse rod, the air bag also delivers gas into the L-shaped flow guide cylinder, and the output impact of the water and the gas makes the low-grade copper-sulfur ore in the water stratify and precipitate, thereby achieving the effect of layered pulse.

[0020] Compared with the prior art, the present application provides a low-grade copper-sulfur ore pre-selection and waste-throwing equipment and process, which has the following beneficial effects:

[0021] 1. The device can reduce the wear of the sieve plate by additionally delivering water flow to the bottom of the sieve plate, the lower water flow can reduce the direct friction of particles, and the water flow can loosen the bed layer, promote the separation of light and heavy particles according to density, and improve the separation precision.

[0022] 2、 the device uses the setting of L-shaped partition plate, can guarantee L-shaped flow guide cylinder to carry out layering impurity removal in area, can increase the impurity removal effect of overall device through multi-stage impurity removal operation, improve the practical performance of device.

[0023] 3、 the device uses U-shaped connecting piece, can guarantee that the rotating vertical rod does not shake during rotation, guarantee the connection stability between rotating vertical rod and connecting frame, avoid the problem that the normal use function of device is affected because of unstable connection.

[0024] 4、 the device uses the setting of different check valve directions, can guarantee that the air bag does not hinder each other during inhaling and exhaling, can guarantee the working state that the upper part of air bag inhales and the lower part exhales, and is beneficial to the extrusion of rotating horizontal rod. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall perspective view of the application;

[0026] Figure 2 It is the vertical section perspective view of L-shaped flow guide cylinder of the application;

[0027] Figure 3 It is the expanded perspective view of guide cone groove block of the application;

[0028] Figure 4 It is the bottom perspective view of L-shaped flow guide cylinder of the application;

[0029] Figure 5 It is the perspective view of L-shaped partition plate of the application;

[0030] Figure 6 It is the combined perspective view of power transmission assembly, conveying assembly, gas conveying assembly and extrusion assembly of the application;

[0031] Figure 7 It is the perspective view of gas conveying assembly of the application;

[0032] Figure 8 It is the perspective view of extrusion assembly of the application;

[0033] Figure 9 It is the perspective view of rotating vertical rod of the application.

[0034] As shown in the figure, 1 is a support frame, 2 is an L-shaped flow guide cylinder, 3 is an L-shaped partition plate, 301 is an L-shaped plate, 302 is an inclined plate, 4 is a sieve plate, 5 is a material guide cone groove block, 6 is a discharge pipe, 7 is a connecting frame, 8 is an output motor, 9 is a power transmission assembly, 901 is a first belt pulley, 902 is a belt, 903 is a second belt pulley, 904 is a rotating vertical rod, 905 is a U-shaped connecting piece, 906 is a connecting shaft rod, 10 is a conveying assembly, 1001 is a rotating horizontal rod, 1002 is a vertical shaft rod, 1003 is a connecting block, 1004 is a square block, 1005 is a squeezing groove block, 1006 is a first vertical rod, 1007 is a limiting cylinder, 1008 is a second vertical rod, 1009 is a pushing disc, 11 is a gas conveying assembly, 1101 is a fixed disc, 1102 is a limiting vertical rod, 1103 is a limiting top ring, 1104 is a moving column, 1105 is an arc head rod, 1106 is a squeezing hole block, 1107 is a gas bag, 1108 is a spring, 1109 is an L-shaped suction pipe, 1110 is a gas outlet hose, 1111 is a check valve, 12 is a Z-shaped cavity, 13 is a conveying liquid pipe, 14 is a flow guide opening, and 15 is a squeezing assembly. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] Please refer to Figures 1 to 9 In the embodiment, the low-grade copper-sulfur ore pre-selection and waste-removal equipment includes a support frame 1, an L-shaped flow guide cylinder 2 is fixedly installed on the top surface of the support frame 1 and used for flow guiding, an L-shaped partition plate 3 is fixedly installed at the center of the L-shaped flow guide cylinder 2 and used for partitioning, the L-shaped partition plate 3 includes an L-shaped plate 301 and an inclined plate 302 fixed on the top of the L-shaped plate 301, the inclined plate 302 is inclined to the right and higher on the right and lower on the left, the sieve plate 4 on the left is arranged ten centimeters lower than the sieve plate 4 on the right, the inclined inclined plate 302 resists the low-grade copper-sulfur ore just added, increases the time of pulse layering, and thus can fully layer the low-grade copper-sulfur ore, and the sieve plates 4 are fixedly installed on the left and right sides of the L-shaped partition plate 3 and used for screening.

[0037] The bottom surface of the L-shaped guide cylinder 2 is fixedly installed with a material guiding cone groove block 5 for sealing and guiding on both sides of the L-shaped partition plate 3. Through the inclined effect of the material guiding cone groove block 5, the better guiding of the precipitated metal can be ensured, and the lower front of the material guiding cone groove block 5 is fixedly installed with a discharge pipe 6. The upper side of the front of the L-shaped guide cylinder 2 is fixedly installed with an output motor 8 for power output through a fixed connecting frame 7. The front side of the top surface of the L-shaped guide cylinder 2 is arranged in a stepped manner with the left side being lower than the right side. The output motor 8 is located on the left side of the top surface of the connecting frame 7. The output end of the output motor 8 is connected with a conveying assembly 10 for pulse conveying through a power transmission assembly 9. The left and right sides of the top surface of the L-shaped guide cylinder 2 are fixedly installed with a gas conveying assembly 11 for gas conveying below the conveying assembly 10.

[0038] Z-shaped cavities 12 for guiding are arranged on the front and back sides of the two sieve plates 4 in the L-shaped guide cylinder 2. A conveying liquid pipe 13 for conveying is fixedly installed on the right side of the inner wall of each Z-shaped cavity 12. A plurality of guiding ports 14 for guiding are arranged on the opposite sides of the inner wall of each Z-shaped cavity 12 on one side of the corresponding sieve plate 4. The guiding port 14 is an inclined circular port structure, and the side of the guiding port 14 close to the sieve plate 4 is arranged lower than twice the side away from the sieve plate 4.

[0039] The power transmission assembly 9 includes a first pulley 901 fixedly installed on the output end of the output motor 8. The surface of the first pulley 901 is connected with a second pulley 903 through a clamped belt 902. The rear of the second pulley 903 is fixedly installed with a rotating vertical rod 904 for rotation. The rear end of the rotating vertical rod 904 is rotationally connected with the front of the L-shaped guide cylinder 2. The front side of the rod wall of the rotating vertical rod 904 is rotationally connected with the top surface of the connecting frame 7 through a U-shaped connecting piece 905. The rotating vertical rod 904 is a crank and connecting rod structure. The crank and connecting rod structure of the rotating vertical rod 904 can better drive the up and down movement of the connecting shaft 906. The rod wall of the rotating vertical rod 904 is rotationally installed with a connecting shaft 906 for connection on the upper side of the conveying assembly 10.

[0040] The conveying assembly 10 includes a rotating horizontal rod 1001 and a vertical shaft 1002 fixedly installed on the rod wall of the rotating horizontal rod 1001. The rear end of the vertical shaft 1002 is rotationally connected with the front of the L-shaped guide cylinder 2. The front end of the vertical shaft 1002 is fixedly installed with the bottom surface of the connecting frame 7 through a rotating connecting block 1003. The right side of the top surface of the rotating horizontal rod 1001 is rotationally connected with the surface of the connecting shaft 906 through two blocks 1004. The left and right sides of the surface of the rotating horizontal rod 1001 are provided with squeezing assemblies 15 for squeezing.

[0041] The extrusion assembly 15 comprises an extrusion groove block 1005 rotatably mounted on the surface of the rotating cross bar 1001, and the bottom surface of the extrusion groove block 1005 is fixedly mounted with a limiting cylinder 1007 through a fixed first vertical rod 1006. The bottom surfaces of the two limiting cylinders 1007 both extend to the inside of the L-shaped flow guide cylinder 2 through the top surface of the L-shaped flow guide cylinder 2, and the bottom surface of the limiting cylinder 1007 is fixedly mounted with a pushing disc 1009 for pushing liquid through a fixed second vertical rod 1008.

[0042] The gas delivery assembly 11 comprises a fixed disc 1101 fixedly mounted on one side of the top surface of the L-shaped flow guide cylinder 2, and the circumferential side of the top surface of the fixed disc 1101 is jointly fixedly mounted with a limiting top ring 1103 for guiding through a plurality of fixed limiting vertical rods 1102 arranged in a circular array on the top of the fixed disc 1101. The inner wall of the limiting top ring 1103 is fixedly mounted with an arc head rod 1105 for pressing through a sliding moving column 1104. The arc head rod 1105 can ensure better rotation and extrusion of the rotating cross bar 1001. The upper sides of the rod walls of the plurality of limiting vertical rods 1102 are jointly fixedly mounted with air bags 1107 for gas output through sliding extrusion hole blocks 1106. The limiting vertical rods 1102 are sleeved with springs 1108 for elastic pushing below the extrusion hole blocks 1106. The rear upper part of the air bag 1107 is fixedly mounted with an L-shaped suction pipe 1109 for suction, and the front lower part of the air bag 1107 is fixedly mounted with an air outlet hose 1110 for air outlet. The rear end of the air outlet hose 1110 extends to the inside of the L-shaped flow guide cylinder 2 through the front surface of the L-shaped flow guide cylinder 2. The pipe walls of the L-shaped suction pipe 1109 and the air outlet hose 1110 are both provided with check valves 1111 for check. The check valves 1111 on the pipe walls of the L-shaped suction pipe 1109 and the air outlet hose 1110 are oppositely arranged in the check direction.

[0043] A low-grade copper-sulfur ore pre-selection and waste-throwing process, the low-grade copper-sulfur ore pre-selection and waste-throwing process comprising the following steps:

[0044] Step one, product addition, the product addition is to add the ground low-grade copper-sulfur ore and water into the L-shaped flow guide cylinder 2, and to add at the highest point on the right side of the L-shaped flow guide cylinder 2. During the process of adding the low-grade copper-sulfur ore and water, the discharge pipe 6 is in a closed state. With the addition of the ground low-grade copper-sulfur ore and water, the product addition is completed.

[0045] Step two, the device layer pulse, the device layer pulse is output motor 8 through the first pulley 901 belt 902 on the second pulley 903 rotation, the second pulley 903 through the rotating vertical rod 904 drive connecting shaft 906 do up and down operation, using the up and down drive, make the rotating horizontal rod 1001 around the vertical rod 1002 swing work, the swing work of rotating horizontal rod 1001 will drive the push plate 1009 on the extrusion assembly 15, the water in the L type flow cylinder 2 is extruded and impacted, and in the process of rotating horizontal rod 1001 drive extrusion assembly 15 to the L type flow cylinder 2 in the pulse impact, at the same time, will drive the air bag 1107 to the L type flow cylinder 2 in the gas delivery, using the output impact of water and gas, so that the low grade copper sulphide ore in the water is stratified and precipitated, and then the effect of stratified pulse is achieved.

[0046] The working principle of the above embodiment is:

[0047] Before use, the pipe for conveying water needs to be connected with the liquid conveying pipe 13, so that the liquid can impact the surface of the sieve plate 4 through the flow port 14 on the Z type cavity 12 during use, so that the impact of the liquid can reduce the direct friction of the particles on the sieve plate 4, thereby reducing the wear of the sieve plate 4, and the water flow can loosen the bed layer, promote the separation of light and heavy particles according to density, and improve the separation precision;

[0048] When pre selecting and discarding low grade copper sulphide ore, the low grade copper sulphide ore is ground and added into the L type flow cylinder 2 together with water, and is added into the highest part of the right side of the L type flow cylinder 2. During the process of adding low grade copper sulphide ore and water, the discharge pipe 6 is in a closed state, so that the stratified screening of the metal ore is precipitated in the material guiding cone groove block 5.

[0049] With the addition of the ground low grade copper sulphide ore and water, the output motor 8 drives the second pulley 903 on the belt 902 to rotate through the first pulley 901, the second pulley 903 drives the connecting shaft 906 to do up and down operation through the rotating vertical rod 904, and the up and down drive makes the rotating horizontal rod 1001 swing around the vertical rod 1002. The swing work of the rotating horizontal rod 1001 will drive the push plate 1009 on the extrusion assembly 15 to extrude and impact the water in the L type flow cylinder 2. The up and down operation of the push plate 1009 in the water can drive the water to move up and down, and the area and up and down operation kinetic energy of the push plate 1009 in the device have the effect and energy of driving half of the water in the L type flow cylinder 2 to operate. In the process of rotating horizontal rod 1001 driving extrusion assembly 15 to pulse impact into the L type flow cylinder 2, the impurities in the low grade copper sulphide ore will be pushed out through the pulse force, and the metal ore body with heavier quality will relatively fall, thereby achieving the effect of pre selecting and discarding low grade copper sulphide ore;

[0050] In the process of the swing of the rotating cross bar 1001 generating pulses, the air bag 1107 will simultaneously transport gas into the L-shaped flow guide cylinder 2. When the rotating cross bar 1001 presses the water body downward, the water level of the L-shaped flow guide cylinder 2 has a rising trend, and the air bag 1107 is pressed at the same time. Thus, the gas in the air bag 1107 will be introduced into the L-shaped flow guide cylinder 2 through the air outlet hose 1110. By using the output impact of water and gas, the water flow can be accelerated to penetrate upward, the bed layer can be loosened, the heavy particles can be promoted to settle down, the power load of the pushing disc 1009 in the gas pressure conveying device can be shared, and the service life of the structure in the device can be prolonged. The air bag 1107 will discharge gas through the air outlet hose 1110 when it is pressed. The check valve 1111 in the air outlet hose 1110 can only discharge gas but not intake. When the rotating cross bar 1001 moves upward, the extrusion block 1106 drives the air bag 1107 to expand under the elastic force of the spring 1108, and then the air bag 1107 inhales air through the L-shaped suction pipe 1109, thereby ensuring the air outlet effect of the air bag 1107 in the next step. The check valve 1111 on the L-shaped suction pipe 1109 can only inhale air but not intake, which can ensure the effect of the air bag 1107 continuously conveying gas into the L-shaped flow guide cylinder 2. Moreover, the air outlet hose 1110 of the device can also be connected with the liquid conveying pipe 13. Thus, by using the air outlet effect, the abrasion problem of the surface of the sieve plate 4 can be avoided. The device has a prominent innovative structure, and no more redundant description of the prior art is made.

[0051] The mounting mode, connecting mode or setting mode disclosed in the embodiment are common mechanical connecting modes, and can be implemented as long as the beneficial effects can be achieved. In addition, the electrical components appearing in the embodiment are electrically connected with the master controller and the power supply. The master controller can be a conventional known device such as a computer which plays a control role. A person skilled in the art can control the electrical components by simple programming. The existing disclosed power connection technology also belongs to the common knowledge in the art. Therefore, the specific structure, composition and working principle of the embodiment will not be described in more detail.

Claims

1. A low-grade copper-sulfur ore pre-selection and discarding equipment, comprising a support frame (1), characterized in that: An L-shaped flow guide tube (2) for flow diversion is fixedly mounted on the top surface of the support frame (1), and an L-shaped partition plate (3) for separation is fixedly mounted at the center of the interior of the L-shaped flow guide tube (2), and sieve plates (4) for screening are fixedly mounted on both the left and right sides of the L-shaped partition plate (3), and a material guide cone groove block (5) for sealing and diverting is fixedly mounted on the bottom surface of the L-shaped flow guide tube (2) located on both the left and right sides of the L-shaped partition plate (3), and a discharge pipe (6) is fixedly mounted below the front of the material guide cone groove block (5), and an output motor (8) for power output is fixedly mounted on the upper side of the front of the L-shaped flow guide tube (2) through a fixed connecting frame (7), and the output end of the output motor (8) is connected to a conveying assembly (10) for pulse conveying through a power transmission assembly (9), and a gas transmission assembly (11) for gas transmission is fixedly mounted on the left and right sides of the top surface of the L-shaped flow guide tube (2) located directly below the conveying assembly (10); The L-shaped guide tube (2) is provided with Z-shaped cavities (12) for guiding flow on both the front and rear sides of the two sieve plates (4), and a liquid delivery pipe (13) for conveying flow is fixedly installed on the right side of the inner wall of the two Z-shaped cavities (12). The inner walls of the two Z-shaped cavities (12) are provided with a plurality of guide ports (14) for guiding flow on opposite sides of the corresponding sieve plates (4), and the guide ports (14) are inclined circular port structures, and the side of the guide ports (14) close to the sieve plate (4) is twice lower than the side away from the sieve plate (4).

2. The low-grade copper-sulfur ore pre-selection and discarding equipment according to claim 1, characterized in that: The power transmission assembly (9) includes a first pulley (901) fixedly mounted on the output end of the output motor (8); a second pulley (903) is clamped on the surface of the first pulley (901) via a clamping belt (902); a rotating longitudinal rod (904) for rotation is fixedly mounted behind the second pulley (903); and a connecting shaft (906) for connection is rotatably mounted on the rod wall of the rotating longitudinal rod (904) located on the upper side of the conveying assembly (10).

3. The low-grade copper-sulfur ore pre-selection and discarding equipment according to claim 2, characterized in that: The conveying assembly (10) comprises a rotating crossbar (1001) and a longitudinal axis rod (1002) fixed to the middle of the wall of the rotating crossbar (1001), and extrusion assemblies (15) for extrusion are provided on both the left and right sides of the surface of the rotating crossbar (1001); The extrusion assembly (15) comprises an extrusion slot block (1005) rotatably mounted on the surface of a rotating crossbar (1001), and a limiting cylinder (1007) is fixedly mounted on the bottom surface of the extrusion slot block (1005) via a fixed first vertical rod (1006), while a pushing disk (1009) for pushing liquid is fixedly mounted on the bottom surface of the limiting cylinder (1007) via a fixed second vertical rod (1008).

4. The low-grade copper-sulfur ore pre-selection and discarding equipment according to claim 3, characterized in that: The gas delivery assembly (11) comprises a fixed plate (1101) fixedly mounted on one side of the top surface of the L-shaped guide tube (2), and a limiting top ring (1103) for guiding is fixedly mounted on the circumferential side of the top surface of the fixed plate (1101) through a plurality of fixed limiting vertical rods (1102), and an arc rod (1105) for pressing is fixedly mounted on the inner wall of the limiting top ring (1103) through a sliding movable column (1104), and an air bag (1107) for gas output is fixedly mounted on the upper side of the rod wall of the plurality of limiting vertical rods (1102) through a sliding extrusion hole block (1106), and the limiting vertical rods (1102) are fixedly mounted on the upper side of the rod wall of the plurality of limiting vertical rods (1102) through a sliding extrusion hole block (1106). The rod (1102) is located below the extrusion hole block (1106) and is sleeved with a spring (1108) for elastic propulsion. An L-shaped suction pipe (1109) for air suction is fixedly installed above the rear of the airbag (1107), and an air outlet hose (1110) for air discharge is fixedly installed below the front of the airbag (1107). The rear end of the air outlet hose (1110) passes through the front of the L-shaped guide tube (2) and extends to the interior of the L-shaped guide tube (2). The tube wall of the L-shaped suction pipe (1109) and the tube wall of the air outlet hose (1110) are both provided with a check valve (1111) for non-return.

5. The low-grade copper-sulfur ore pre-selection and discarding equipment according to claim 2, characterized in that: The L-shaped partition plate (3) comprises an L-shaped plate (301) and an inclined plate (302) fixed on the top of the L-shaped plate (301), and the inclined plate (302) is inclined to the right, with the right side higher and the left side lower, and the sieve plate (4) on the left side is set ten centimeters lower than the sieve plate (4) on the right side.

6. The low-grade copper-sulfur ore pre-selection and discarding equipment according to claim 1, characterized in that: The front side of the top surface of the L-shaped guide tube (2) is arranged in a stepped manner with the left side lower and the right side higher, and the output motor (8) is located on the left side of the top surface of the connecting frame (7).

7. The low-grade copper-sulfur ore pre-selection and discarding equipment according to claim 3, characterized in that: The rear end of the rotating longitudinal rod (904) is rotatably connected to the front of the L-shaped guide tube (2), and the front side of the rod wall of the rotating longitudinal rod (904) is rotatably connected to the top surface of the connecting frame (7) through a U-shaped connecting piece (905). The rotating longitudinal rod (904) is a crank-connecting rod structure.

8. The low-grade copper-sulfur ore pre-selection and discarding equipment according to claim 4, characterized in that: The rear end of the longitudinal axis (1002) is rotatably connected to the front of the L-shaped guide tube (2), and the front end of the longitudinal axis (1002) is fixedly mounted to the bottom surface of the connecting frame (7) via a rotatable connecting block (1003), while the right side of the top surface of the rotating cross bar (1001) is rotatably connected to the surface of the connecting axis (906) via two blocks (1004), and the bottom surfaces of the two limiting cylinders (1007) both penetrate the top surface of the L-shaped guide tube (2) and extend to the interior of the L-shaped guide tube (2).

9. The low-grade copper-sulfur ore pre-selection and discarding equipment according to claim 4, characterized in that: The plurality of limit vertical rods (1102) are arranged in a circular array on the top of the fixed plate (1101), and the check valve (1111) located on the wall of the L-shaped suction pipe (1109) and the check valve (1111) on the wall of the air outlet hose (1110) are arranged in opposite directions.

10. A low-grade copper-sulfur ore pre-selection and waste disposal process, characterized by: The low-grade copper-sulfur ore pre-selection and discarding equipment comprises the following steps: Step 1, adding the product, wherein the product is added by grinding the low-grade copper-sulfur ore and adding it together with water into the L-shaped guide tube (2), and adding it to the highest point on the right side of the L-shaped guide tube (2). During the process of adding the low-grade copper-sulfur ore and water, the discharge pipe (6) is in a closed state. With the addition of the low-grade copper-sulfur ore after grinding and water, the addition of the product is completed; Step 2, the device is layered pulse. The device is layered pulse. The output motor (8) drives the second pulley (903) on the belt (902) to rotate through the first pulley (901). The second pulley (903) drives the connecting shaft (906) to move up and down through the rotating longitudinal rod (904). The connecting shaft (906) is driven up and down to make the rotating crossbar (1001) swing around the longitudinal rod (1002). The swinging of the rotating crossbar (1001) drives the pushing disk (1009) on the extrusion component (15) to squeeze and impact the water in the L-shaped guide tube (2). In the process of the rotating crossbar (1001) driving the extrusion component (15) to pulsate and impact the L-shaped guide tube (2), the air bag (1107) is driven to transport gas into the L-shaped guide tube (2). The output impact of water and gas is used to make the low-grade copper-sulfur ore in the water stratified and precipitated, thereby achieving the effect of layered pulse.

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