Tailing liquid level control box of flotation machine

Abstract

The utility model belongs to the technical field of flotation machines, and discloses a flotation machine tailing liquid level control box which comprises a hollow control box body, and connecting hanging lugs are arranged on the side wall of the control box body. A rubber lining is arranged on the inner wall of the control box body; an opening is formed in the top of the control box body, a rectangular slurry inlet is formed in the back face of the control box body, a slurry outlet is formed in the front face of the control box body and connected with a flange connector, the slurry outlet is higher than the slurry inlet, and the cross section area of the slurry inlet is larger than that of the slurry outlet. A support frame is arranged at the top of the control box body and is used for fixing a regulating valve control system; according to the scheme, by arranging the pulp inlet and the pulp outlet of the control box, a certain liquid level difference is formed by ore pulp in the box body, the ore pulp can flow more smoothly, deposition and blockage of the ore pulp at the bottom of the box body are avoided, and therefore the flowability and flotation efficiency of the ore pulp are improved; the problem that ore pulp in a tailing box of an existing flotation machine cannot flow smoothly is solved.

Description

TECHNICAL FIELD

[0001] The present scheme belongs to the technical field of flotation machines, and particularly relates to a flotation machine tailing liquid level control box. BACKGROUND

[0002] The flotation machine liquid level measurement and control system is composed of an ore pulp liquid level measuring device, a liquid level control box and a pneumatic regulating valve. It is used for automatically controlling the liquid level of each flotation operation to ensure stable operation, effectively improve the concentrate grade and recovery rate, and meet the process index requirements.

[0003] The flotation machine liquid level automatic control system is composed of a liquid level measuring device, a liquid level controller and a pneumatic regulating valve. The liquid level controller controls the liquid level pneumatic regulating valve based on the liquid level measurement value transmitted by the liquid level measuring device and the liquid level set value of the operator, so as to realize automatic adjustment of the liquid level. The electric regulating valve control system is composed of an electric actuator, a cone valve and a control part. The system is an auxiliary system of the liquid level automatic control system. When the liquid level automatic control system is maintained or fails, the electric regulating valve control system can be used for manual control of the ore discharge amount of the (tail) ore tank.

[0004] Referring to the existing document (announcement) No. CN207514258U, a flotation liquid level precise control device is disclosed, which comprises a conical valve core, a conical valve base, a driving mechanism, the conical valve core is a truncated cone structure and the bottom is connected with the driving mechanism through a connecting rod, the conical valve base is a flange structure and the center is provided with a conical hole matched with the truncated cone of the conical valve core, the bottom outer edge of the conical valve base is provided with a through hole or a screw hole in the axial direction, and the conical valve base is fixedly connected with the flotation device through the bolts passing through the through hole or the screw hole.

[0005] The above-mentioned flotation device changes the conical valve base from a straight pipe shape to a corresponding conical sleeve structure, so as to play a drainage role on the ore sand accumulated at the bottom of the intermediate tank to avoid blockage. However, since the cone valve is usually installed at the discharge port of the flotation column or the tailing tank and the intermediate tank of the flotation machine, the solid particles in the ore pulp deposit at the bottom of the tank, which causes the tailing tank and the intermediate tank to easily deposit and block the ore pulp during use, the ore pulp flows not smoothly, and the flotation efficiency is affected. CONTENT OF THE UTILITY MODEL

[0006] The purpose of the present scheme is to provide a flotation machine tailing liquid level control box to solve the problem of poor ore pulp flow in the tailing tank of the existing flotation machine.

[0007] In order to achieve the above object, the scheme provides a flotation machine tailings liquid level control box, which comprises a hollow control box body, the top of the control box body is provided with an opening, the back of the control box body is provided with a pulp inlet, the pulp inlet is rectangular, the front of the control box body is provided with a pulp outlet, the pulp outlet is higher than the pulp inlet, and the diameter of the pulp inlet is larger than that of the pulp outlet.

[0008] The principle of the scheme is that the cone valve spool of the control valve control system enters the control box through the opening at the top of the control box. Since the rectangular pulp inlet at the back of the control box has a large diameter, the resistance of the pulp flowing in can be reduced. The pulp outlet at the front is higher than the pulp inlet and has a smaller diameter, so that the cross-sectional area of the pulp inlet is larger than that of the pulp outlet. The pulp forms a certain liquid level difference in the box body, promoting the smooth flow of the pulp, thereby avoiding the deposition and blockage of the pulp at the bottom of the box body, and improving the fluidity and flotation efficiency of the pulp.

[0009] The effect of the scheme is that the pulp can flow more smoothly by setting the pulp inlet and the pulp outlet of the control box, avoiding the deposition and blockage of the pulp at the bottom of the box body, thereby improving the fluidity and flotation efficiency of the pulp.

[0010] Further, the pulp outlet is connected with a flange connector.

[0011] The principle and effect of the scheme are that the flange connector is connected with the pulp outlet, so that the control box can be connected with the external pipeline, thereby transferring the pulp to the next process.

[0012] Further, the control box body is provided with a rubber lining.

[0013] The principle and effect of the scheme are that the rubber lining is arranged to reduce the corrosion of the control box by the corrosive medium in the pulp.

[0014] Further, the side wall of the control box body is provided with a connecting lug.

[0015] The principle and effect of the scheme are that the connecting lug is arranged to fix and install the control box at a predetermined position.

[0016] Further, the top of the control box body is provided with a support frame, and the support frame is used to fix the control valve control system.

[0017] The principle and effect of the scheme are that the support frame is arranged to facilitate the installation of the control valve control system.

[0018] Further, the control valve control system comprises a cone valve spool and a cone valve valve base, the cone valve valve base is fixedly arranged in the control box body, the cone valve spool is movably arranged in the control box body and cooperates with the cone valve valve base, the cone valve spool is connected with a movable rod, and the movable rod is connected with a driving assembly for driving the movable rod up and down.

[0019] The principle and effect of the present scheme are that the movable rod is driven to move up and down by the driving assembly, the cone valve core is driven to move synchronously, the flow area between the cone valve core and the cone valve base is changed, and the flow of the ore pulp is adjusted.

[0020] Further, the cleaning assembly is arranged in the control box body, the cleaning assembly comprises a threaded pipe and a plug, the threaded pipe is arranged on the outer wall of the movable rod, one end of the threaded pipe is rotatably connected with the movable rod, and the other end of the threaded pipe is fixedly connected with the movable rod, the plug is arranged in the control box body, and the plug is arranged in cooperation with the threaded pipe.

[0021] The principle and effect of the present scheme are that the solid particles in the ore pulp are easily deposited on the valve base due to the decrease of flow speed or the change of flow direction when the ore pulp flows through the cone valve base. The deposited sand changes the cooperation between the cone valve core and the valve base. Therefore, when the cone valve core moves towards the cone valve base and approaches the cone valve base, the plug cooperates with the threaded pipe, the plug provides guidance for the rotation of the threaded pipe, the threaded pipe can drive the cone valve core to rotate, the deposited sand on the cone valve base is disturbed, the deposited sand is prevented from being accumulated in the valve base, and the cooperation between the cone valve core and the valve base is affected.

[0022] Further, the reset assembly is arranged in the control box body, the reset assembly comprises a reset spring and a support rod, the support rod is fixedly arranged in the control box body, the reset spring is arranged on the support rod, one end of the reset spring is fixedly connected with the plug, and the other end of the reset spring is fixedly connected with the control box body.

[0023] The principle and effect of the present scheme are that the general cone valve adopts a cylinder provided with a positioner to control the opening degree, the cylinder is provided with an air compressor to provide power for the up-and-down movement, but in the case that the equipment suddenly stops, the air compressor stops working, the cylinder cannot apply power to the cone valve, the cone valve core stays in the ore pulp, and cannot be reset in the valve base, so that the ore pulp leaks. In order to avoid this situation, a manual driving assembly is generally used, but workers need to be on site all the time, and the cone valve core cannot be closed in the first time. In the present scheme, the movable rod normally moves up and down under the driving of the driving assembly, the pre-tightening force of the reset spring is overcome, and the opening degree of the cone valve core can be normally adjusted. After the equipment stops, the pre-tightening force of the reset spring drives the plug to reset to the initial position, the threaded pipe rotates to the initial position, and the valve core of the cone valve is reset to the valve base.

[0024] Further, the plug is slidably arranged on the outer wall of the support rod.

[0025] The principle and effect of the present scheme are that the support rod is used for guiding the movement of the plug.

[0026] Further, the inner wall of the control box body is provided with a guide groove, and the bolt is in sliding connection with the guide groove.

[0027] The principle and effects of the present application are that the guide groove is used for providing positioning and guiding for the movement of the bolt, thereby avoiding dislocation of the bolt. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 Structure diagram of the tailing liquid level control box of the flotation machine Figure 1 ;

[0029] Figure 2 Structure diagram of the tailing liquid level control box of the flotation machine Figure 2 ;

[0030] Figure 3 Side view of the tailing liquid level control box of the flotation machine

[0031] Figure 4 Internal structure diagram of the cleaning assembly and the reset assembly

[0032] The names of the corresponding marks in the drawings are as follows: control box body 1, opening 11, pulp inlet 12, pulp outlet 13, flange connector 14, rubber lining 15, connecting lug 16, support frame 17, adjusting valve control system 2, conical valve core 21, movable rod 22, cleaning assembly 3, threaded pipe 31, bolt 32, reset assembly 4, reset spring 41, support rod 42. DETAILED DESCRIPTION

[0033] The conception and the technical effects of the present application will be described clearly and completely in combination with the embodiments, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are all within the protection scope of the present application:

[0034] Embodiment:

[0035] Please refer to Fig. 1 Figure 4The utility model relates to a kind of flotation machine tail liquid level control box, including hollow control box body 1, the side wall of control box body 1 is symmetrically equipped with connecting lug 16, it is convenient to fix installation control box body 1 in predetermined position;The inner wall of control box body 1 is equipped with rubber lining 15, the thickness of rubber lining 15 is 10mm, to reduce the corrosion of corrosive medium in ore pulp to the inner wall of control box body 1;The top of control box body 1 has opening 11, the back of control box body 1 is equipped with slurry inlet 12, slurry inlet 12 is rectangle, the front of control box body 1 is equipped with slurry outlet 13, slurry outlet 13 is connected with flange connector 14, flange connector 14 is equipped with rubber lining inside, it is convenient to detach with the pipeline connected, the outer diameter of pipeline connected with flange connector 14 is 377cm, the diameter of short tube rubber lining is 200cm, the diameter of two flanges is 350cm, so that control box can be connected with external pipeline, to transfer ore pulp to next process, slurry outlet 13 is higher than slurry inlet 12, the caliber of slurry inlet 12 is greater than the caliber of slurry outlet 13, so that the cross-sectional area of slurry inlet 12 is greater than the cross-sectional area of slurry outlet 13.

[0036] Specific working principle: the cone valve spool 21 of regulating valve control system 2 is into control box body 1 by the opening 11 in the top of control box, due to the larger caliber of rectangular slurry inlet 12 in the back of control box, can reduce the resistance when ore pulp flows in, and the front slurry outlet 13 is higher than slurry inlet 12 and the caliber is smaller, so that ore pulp forms certain liquid level difference in the box, promote the smooth flow of ore pulp, to avoid ore pulp deposit and block in the bottom of box, improve the fluidity and flotation efficiency of ore pulp.

[0037] Please continue to see Figures 1-4The top of the control box body 1 is provided with a support frame 17 for fixing the adjusting valve control system 2, which comprises a cone valve spool 21 and a cone valve valve base (not shown in the figure), the cone valve valve base is fixedly arranged in the control box body 1, the cone valve spool 21 is movably arranged in the control box body 1 and cooperatively arranged with the cone valve valve base, the cone valve spool 21 is connected with a movable rod 22, the movable rod 22 is connected with a driving assembly for driving the movable rod 22 up and down, the driving assembly can adopt a gas cylinder, the cylinder diameter of the gas cylinder is 125mm, the stroke is 440mm, the piston rod should be provided with a dustproof protective sleeve, and a perfect pure manual mechanism should be provided, the cone valve spool 21 can be opened and closed in the case of complete power-off and power failure, and the manual mechanism adopts a worm and gear combination; the controller of the gas cylinder adopts a Siemens S7-200 SMART+MCGS touch screen, which has standard PID, AI artificial intelligence adjustment APID and various control functions, and also has self-tuning and self-learning functions, program control functions, AI artificial intelligence adjustment algorithm with curve fitting function, smooth curve control effect, one-key manual-automatic switching function and RS485 or RS232 communication interface. When working, the movable rod 22 is driven to move up and down by the gas cylinder or the worm and gear, and the cone valve spool 21 is driven to move synchronously, so as to change the flow area between the cone valve spool 21 and the cone valve valve base, and then adjust the flow of the ore pulp.

[0038] Please refer to Figure 4 Further comprising a cleaning assembly 3 arranged in the control box body 1, the cleaning assembly 3 comprises a threaded pipe 31 and a plug 32, the threaded pipe 31 is arranged on the outer wall of the movable rod 22, one end of the threaded pipe 31 is rotatably connected with the movable rod 22 through a rotary joint, the other end is fixedly connected with the movable rod 22, and the plug 32 is cooperatively arranged with the threaded pipe 31, those skilled in the art need to set a larger distance between the threads of the threaded pipe 31, so that the threaded pipe 31 can rotate along the plug 31; further comprising a reset assembly 4 arranged in the control box body 1, the reset assembly 4 comprises a reset spring 41 and a support rod 42, the support rod 42 is fixedly arranged in the control box body 1, the plug 32 is slidably arranged on the outer wall of the support rod 42, the inner wall of the control box body 1 is provided with a guide groove (not shown in the figure), the plug 32 is slidably connected with the guide groove, the support rod 42 and the guide groove are used for positioning and guiding the movement of the plug 32, the reset spring 41 is arranged on the support rod 42, one end of the reset spring 41 is fixedly connected with the plug 32, and the other end is fixedly connected with the control box body 1; those skilled in the art can select the elastic coefficient of the reset spring 41, so that the movable rod 22 is not disturbed during normal operation of the equipment, and after power failure of the equipment, the reset spring 41 can drive the plug 32 to reset to the initial position, so that the cone valve spool 21 is reset to the cone valve valve base.

[0039] Specific working principle: in the normal work of the device, the driving assembly drives the movable rod 22 to move normally, overcomes the pre-tightening force of the reset spring 41, so that the cone valve spool 21 can normally adjust the opening, when the cone valve spool 21 moves to the direction of the cone valve valve base and approaches the cone valve valve base, the bolt 32 cooperates with the threaded pipe 31, the bolt 32 provides guidance for the rotation of the threaded pipe 31, so that the threaded pipe 31 can drive the cone valve spool 21 to rotate, thereby disturbing the deposited sand in the cone valve valve base, avoiding too much sand accumulated in the sand valve base, so as to affect the cooperation between the cone valve spool 21 and the valve base. After the equipment is suddenly powered off, the pre-tightening force of the reset spring 41 will drive the bolt 32 to reset to the initial position, so that the threaded pipe 31 rotates to the initial position, and then the cone valve spool 21 resets to the valve base, avoiding the leakage of the ore pulp.

[0040] The above is only the embodiment of the present application, and the specific structure and characteristics of the scheme and other common knowledge are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be regarded as the protection scope of the present application, which will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and other records in the specification can be used to explain the content of the claims.

Claims

1. A flotation machine tailings level control box, comprising a hollow control box body (1), characterized in that, The top of the control box body (1) has an opening (11), the back of the control box body (1) is provided with a pulp inlet (12), the pulp inlet (12) is rectangular, the front of the control box body (1) is provided with a pulp outlet (13), the pulp outlet (13) is higher than the pulp inlet (12), and the caliber of the pulp inlet (12) is larger than that of the pulp outlet (13).

2. A flotation cell tailings level control tank according to claim 1 characterised in that: The pulp outlet (13) is connected with a flange connector (14).

3. A flotation cell tailings level control tank according to claim 1 characterised in that: The control box body (1) is provided with a rubber lining (15) inside.

4. A flotation cell tailings level control tank according to claim 1 characterised in that: The side wall of the control box body (1) is provided with a connecting lug (16).

5. A flotation cell tailings level control tank according to claim 1 characterised in that: The top of the control box body (1) is provided with a support frame (17), and the support frame (17) is used for fixing the regulating valve control system (2).

6. A flotation cell tailings level control tank as claimed in claim 5 wherein: The regulating valve control system (2) comprises a cone valve spool (21) and a cone valve valve base, the cone valve valve base is fixedly arranged in the control box body (1), the cone valve spool (21) is movably arranged in the control box body (1) and is arranged in cooperation with the cone valve valve base, the cone valve spool (21) is connected with a movable rod (22), and the movable rod (22) is connected with a driving assembly for driving the movable rod (22) up and down.

7. A flotation cell tailings level control tank as claimed in claim 6 wherein: Further comprising a cleaning assembly (3) arranged in the control box body (1), the cleaning assembly (3) comprises a threaded pipe (31) and a latch (32), the threaded pipe (31) is arranged on the outer wall of the movable rod (22), one end of the threaded pipe (31) is rotatably connected with the movable rod (22), and the other end is fixedly connected with the movable rod (22), the latch (32) is arranged in the control box body (1), and the latch (32) is arranged in cooperation with the threaded pipe (31).

8. A flotation cell tailings level control tank as claimed in claim 7 wherein: Further comprising a reset assembly (4) arranged in the control box body (1), the reset assembly (4) comprises a reset spring (41) and a support rod (42), the support rod (42) is fixedly arranged in the control box body (1), the reset spring (41) is arranged on the support rod (42), one end of the reset spring (41) is fixedly connected with the latch (32), and the other end is fixedly connected with the control box body (1).

9. A flotation cell tailings level control tank as claimed in claim 8 wherein: The latch (32) is slidably arranged on the outer wall of the support rod (42).

10. A flotation cell tailings level control tank according to claim 8, characterised in that: The inner wall of the control box body (1) is provided with a guide groove, and the latch (32) is slidably connected with the guide groove.

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