Ore dressing pulp integrated on-line metering system and ore dressing on-line metering method

Abstract

The invention discloses a beneficiation ore pulp integrated online metering system and beneficiation online metering method.The beneficiation ore pulp integrated online metering system comprises a pulp storage tank used for storing ore pulp, and a discharging opening is formed in one side face of the pulp storage tank; the weighing unit is arranged below the pulp storage tank and is used for obtaining the total weight of the pulp storage tank and the pulp in the pulp storage tank; the pulp volume calculation unit is arranged on the upper end face of the pulp storage tank and used for obtaining the pulp volume in the pulp storage tank; the side pushing assembly is arranged below the pulp storage tank and used for pushing the pulp storage tank to rotate so as to discharge ore pulp in the pulp storage tank from the discharging opening, and the control system regulates and controls the side pushing assembly to rotate the pulp storage tank to be in a horizontal state so as to store the ore pulp; the control system calculates the ore pulp outflow volume in unit time based on the ore pulp volume calculation unit so as to calculate the flow velocity of the ore pulp; the control system determines the concentration of the ore pulp based on measurement results of the ore pulp volume calculation unit and the weighing unit; according to the invention, the ore pulp concentration and the ore pulp flow can be integrally measured at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of slurry metering, and in particular to an integrated online metering system for ore dressing slurry and an online metering method for ore dressing. Background Art

[0002] Flotation is also known as froth flotation. Froth flotation is a method of separating minerals from impurities or one mineral from another. Unpurified ore powder is stirred with water and reagents. The reagents preferentially adhere to the target ore and change its surface properties. Air is then introduced into the mixture. The target ore floats to the surface of the mixture with the bubbles to form foam. The target ore can be obtained after defoaming.

[0003] In the flotation process, in the flotation of various minerals, the pulp concentration and recovery rate have certain regularity. When the pulp is very thin, the recovery rate is low. As the pulp concentration gradually increases, the recovery rate also gradually increases and reaches the maximum value. But after exceeding the optimal pulp concentration, the recovery rate decreases again. The reason is that too high or too low pulp concentration will deteriorate the aeration conditions of the flotation machine, so the appropriate mineral concentration should be grasped in production, that is, the flow rate, concentration and other parameters of the pulp should be accurately measured during the mineral processing process. The accuracy of pulp metering directly affects the control of the mineral processing process, product quality and cost.

[0004] Currently, most methods calculate the flow rate of slurry by measuring the volume of slurry. Common volumetric measuring equipment includes flowmeters, rotor flowmeters, etc. The advantages of this method are simple equipment, easy installation, and low cost, but the disadvantages are that it is greatly affected by the slurry concentration and has a large measurement error.

[0005] The method for measuring the concentration of slurry can use the volume weight matching method. This method requires a special container, and the slurry needs to be transferred into the container. The concentration of the slurry is determined by measuring the volume and corresponding weight of the slurry, and the concentration of the slurry produced at this time is determined. At this time, the slurry needs to be transferred. The operation is relatively complicated and the degree of automation is low.

[0006] Therefore, the prior art lacks an integrated metering device that can simultaneously measure the slurry concentration and flow rate. Most of them are single metering mechanisms that measure single metering parameters, resulting in a large number of installed metering mechanisms. Summary of the invention

[0007] The object of the present invention is to provide an integrated online metering system and an online metering method for mineral processing slurry, so as to solve the technical problem of the lack of an integrated metering device for simultaneously measuring the slurry concentration and flow rate in the prior art.

[0008] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0009] An integrated online metering system for mineral processing slurry, comprising:

[0010] A slurry storage tank is used to store ore slurry, one side of which is formed with a discharge port for discharging the ore slurry, and an upper end surface thereof is formed with a feed port, and the lower edge of the slurry storage tank on the same side as the discharge port is movably hingedly installed;

[0011] A weighing unit is arranged below the slurry storage tank, the weighing unit is connected to a control system and is used to obtain the total weight of the slurry storage tank and the slurry therein;

[0012] A slurry volume calculation unit is arranged on the upper end surface of the slurry storage tank and is located on both sides of the feed port, and the slurry volume calculation unit is connected to a control system and is used to obtain the slurry volume in the slurry storage tank;

[0013] A side push assembly is arranged below the slurry storage tank and installed on the side away from the discharge port, and is used to push the slurry storage tank to rotate around its movable hinge point to discharge the slurry in the slurry storage tank from the discharge port. The side push assembly is connected to the control system. The control system controls the side push assembly to rotate the slurry storage tank to an inclined state so that the slurry in the slurry storage tank flows out from the discharge port. The control system controls the side push assembly to restore the slurry storage tank to a horizontal state so that the slurry storage tank is used to store slurry;

[0014] When the slurry storage tank stores slurry, the control system uses the slurry volume calculation unit to calculate the volume of slurry flowing into the slurry storage tank per unit time, and calculates the flow rate of the slurry based on the slurry volume and the calculation time;

[0015] When the slurry storage tank stores slurry, the control system uses the slurry volume calculation unit to calculate the volume of slurry flowing into the slurry storage tank per unit time, and uses the weighing unit to calculate the weight increase of the slurry storage tank per unit time, and determines the concentration of the slurry according to the matching result of the volume of slurry flowing into the slurry storage tank per unit time and the weight increase of the slurry storage tank per unit time.

[0016] As a preferred solution of the present invention, one of the side panels of the slurry storage tank is movably installed, and the side panel is pushed and rotated to form a discharge port of the slurry storage tank;

[0017] The upper end of the side panel forms a cylindrical rod, and the upper end of the side panel is movably mounted on the cylindrical rod and can rotate around the cylindrical rod;

[0018] The two parallel sides of the slurry storage tank are provided with a pushing cylinder assembly for pushing the side panels to rotate. The pushing cylinder assembly pulls the side panels to rotate downward to close the sides of the slurry storage tank, so that the slurry is stored in the slurry storage tank. The pushing cylinder assembly pushes the side panels to rotate upward to form a discharge port on the side of the slurry storage tank.

[0019] As a preferred solution of the present invention, the pushing cylinder assembly includes a mounting base arranged on two parallel sides of the slurry storage tank, a rotatable horizontal pushing cylinder is movably mounted on the mounting base, and a telescopic shaft of the horizontal pushing cylinder is movably mounted on the extension rod on the side panel;

[0020] The horizontal pushing cylinder pushes the upper end of the side panel to rotate around the cylindrical rod through telescopic movement, so that a discharge port is formed at the bottom of the side of the slurry storage tank.

[0021] As a preferred solution of the present invention, the weighing unit includes a plurality of evenly distributed pressure sensors arranged below the bottom surface of the slurry storage tank, and the weighing unit is used to weigh the slurry storage tank as a whole and the slurry stored in the slurry storage tank.

[0022] As a preferred solution of the present invention, a sealing cover is provided on the upper end surface of the slurry storage tank, and a strip-shaped slurry feeding groove is provided in the middle position of the sealing cover to form a feed inlet, and the slurry produced by the slurry production side enters the slurry storage tank through the strip-shaped slurry feeding groove;

[0023] The slurry volume calculation unit includes a plurality of laser measuring instruments arranged on the sealing covers on both sides of the strip-shaped slurry feeding trough, and the slurry distribution state in the slurry storage tank is determined by using the laser measuring instruments, and the slurry distribution volume in the slurry storage tank is determined by the slurry distribution state.

[0024] As a preferred solution of the present invention, the side push assembly includes vertical push cylinders arranged on both sides of the weighing unit, the bottom of the vertical push cylinder is movably installed on the positioning pile, the telescopic shaft of the vertical push cylinder is connected to the two side edges of the slurry storage tank, and the edge of the slurry storage tank located at the lower end of the discharge port is a movable hinge connection mode;

[0025] The vertical propulsion cylinder pushes the slurry storage tank to rotate around the hinge point at its lower end through up and down vertical movement, so that the entire slurry storage tank is in an inclined state, and the slurry in the slurry storage tank is discharged from the discharge port.

[0026] In addition, the present invention also provides an online metering method for mineral processing using the above-mentioned mineral processing slurry integrated online metering system, comprising the following steps:

[0027] The integrated online metering system for mineral processing slurry is arranged between the slurry production side and the transmission side, and the slurry flow rate and slurry concentration produced by the slurry generation side are calculated by the integrated online metering system for mineral processing slurry;

[0028] When measuring the slurry flow rate and slurry concentration produced by the slurry production side, the slurry storage tank is adjusted to a horizontal state, and the discharge port is closed, and the initial weight and initial volume of the slurry storage tank are obtained;

[0029] The slurry storage tank is used to receive the slurry produced by the slurry production side, and the real-time weight and real-time volume of the slurry storage tank are measured in real time. According to the volume change of the slurry storage tank in unit time, the slurry flow rate produced by the slurry production side in unit time is determined, and according to the volume change and weight change of the slurry storage tank in unit time, the concentration of the slurry produced by the slurry production side is determined;

[0030] After completing the measurement of the slurry flow rate and the slurry concentration, the slurry storage tank is adjusted to an inclined state, and the discharge port is opened to discharge the slurry in the slurry storage tank. When there is no need to measure the slurry flow rate and the slurry concentration produced by the slurry production side, the slurry storage tank is kept in an inclined state, and the discharge port is opened, and the slurry storage tank serves as a transfer component.

[0031] As a preferred solution of the present invention, the initial volume of the slurry storage tank is obtained as follows:

[0032] When the slurry storage tank is adjusted to a horizontal state and the weighing unit obtains the weight of the slurry storage tank, the height distribution value corresponding to each monitoring point obtained by the slurry volume calculation unit is obtained;

[0033] Based on the height distribution values ​​of all monitoring points, smoothing is performed to obtain the current surface distribution form and slurry distribution height of the slurry in the slurry storage tank, a three-dimensional coordinate system is constructed, and a three-dimensional distribution map of the slurry in the slurry storage tank is determined;

[0034] The slurry volume formed based on the three-dimensional distribution diagram of the slurry in the slurry storage tank is used as the initial volume of the slurry storage tank.

[0035] As a preferred solution of the present invention, the laser beam of the laser measuring instrument in the slurry volume calculation unit near the middle position of the upper top plate of the slurry storage tank is in an inclined state to measure the slurry distribution height directly below the slurry inlet of the slurry storage tank;

[0036] Determining the position coordinates of the detection point of each of the laser measuring instruments in the slurry volume calculation unit relative to the three-dimensional coordinate system;

[0037] Based on the slurry distribution height detected by each laser measuring instrument and the three-dimensional coordinate value of each detection point of the laser measuring instrument, a three-dimensional distribution map of the slurry in the slurry storage tank is determined.

[0038] As a preferred solution of the present invention, the next monitoring work is performed at a fixed interval, and the specific implementation method is as follows:

[0039] Firstly, the discharge port is closed, and then the slurry storage tank is adjusted to a horizontal state, and the initial weight and initial volume of the slurry storage tank are regained;

[0040] The real-time weight and real-time volume of the slurry storage tank are obtained in real time, and the slurry flow rate produced by the slurry production side per unit time and the slurry concentration produced per unit time are calculated again.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The present invention sets an integrated online metering system for mineral processing slurry between the slurry production side and the slurry transmission side, which can calculate the slurry concentration produced by the slurry production side and the slurry flow rate per unit time, thereby realizing the integrated and simultaneous measurement of the slurry concentration and the slurry flow rate. At the same time, the metering device, in the non-monitoring stage, can serve as a transfer unit to transfer the slurry produced by the slurry production side to the transmission side. When the metering device is used for monitoring and metering, the metering device is adjusted to a monitoring and metering state, thereby realizing the synchronous measurement of the slurry concentration and the slurry flow rate. There is no need to extract slurry from the slurry production side, and the slurry concentration and the slurry flow rate are measured by a metering device outside the mineral processing process, thereby improving the calculation accuracy and timeliness of the slurry flow rate and the slurry concentration, and the implementation method is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0044] Figure 1 It is a schematic diagram of the overall structure of the integrated metering device according to an embodiment of the present invention;

[0045] Figure 2 It is a schematic diagram of the overall structure of a push cylinder assembly according to an embodiment of the present invention;

[0046] Figure 3 This is a schematic diagram of the installation structure of a slurry volume calculation unit according to an embodiment of the present invention;

[0047] Figure 4 It is a schematic diagram of the structure when the discharge port of an embodiment of the present invention is opened;

[0048] Figure 5 It is a structural schematic diagram of an integrated metering control system according to an embodiment of the present invention;

[0049] Figure 6 It is a schematic flow chart of the integrated metering method according to an embodiment of the present invention;

[0050] The numbers in the figure represent the following:

[0051] 1-slurry storage tank; 2-weighing unit; 3-control system; 4-slurry volume calculation unit; 5-side thrust assembly;

[0052] 11-discharge port; 12-side panel; 13-cylindrical rod; 14-push cylinder assembly; 15-sealing cover; 16-strip slurry feeding trough;

[0053] 141-mounting base; 142-horizontal push cylinder;

[0054] 51- vertical push cylinder; 52- positioning pile. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] like Figures 1 to 4 As shown, the present invention provides an integrated online metering system for mineral processing slurry, which is arranged between the slurry production side and the transmission side, and is used to calculate the slurry flow rate and slurry concentration produced by the slurry generation side, including a slurry storage tank 1, a weighing unit 2, a slurry volume calculation unit 4, a side thrust component 5 and a control system 3.

[0057] The slurry storage tank 1 is used to store ore slurry, and a discharge port 11 for discharging the ore slurry is formed on one side thereof, and a feed port is formed on the upper end surface thereof, and the lower edge of the slurry storage tank 1 and the discharge port 11 on the same side are movably hingedly installed;

[0058] The weighing unit 2 is arranged below the pulp storage tank 1 and is connected to the control system 3 to obtain the total weight of the pulp storage tank 1 and the pulp therein;

[0059] The slurry volume calculation unit 4 is arranged on the upper end surface of the slurry storage tank 1 and on both sides of the feed port. The slurry volume calculation unit 4 is connected to the control system 3 and is used to obtain the slurry volume in the slurry storage tank 1;

[0060] The side push assembly 5 is arranged below the slurry storage tank 1 and installed on the side away from the discharge port 11, and is used to push the slurry storage tank 1 to rotate around its movable hinge point to discharge the slurry in the slurry storage tank 1 from the discharge port 11. The side push assembly 5 is connected to the control system 3. The control system 3 controls the side push assembly 5 to rotate the slurry storage tank 1 to an inclined state, so that the slurry in the slurry storage tank 1 flows out from the discharge port. The control system 3 controls the side push assembly 5 to restore the slurry storage tank 1 to a horizontal state, so as to use the slurry storage tank 1 to store slurry;

[0061] like Figure 5 As shown, when the slurry storage tank 1 stores slurry, the control system 3 uses the slurry volume calculation unit 4 to calculate the volume of slurry flowing into the slurry storage tank 1 per unit time, and calculates the flow rate of the slurry based on the slurry volume and the calculation time;

[0062] When the control system 3 stores slurry in the slurry storage tank 1, it uses the slurry volume calculation unit 4 to calculate the volume of slurry flowing into the slurry storage tank 1 per unit time, and uses the weighing unit 2 to calculate the weight increase of the slurry storage tank 1 per unit time, and determines the concentration of the slurry according to the matching result of the slurry volume flowing into the slurry storage tank 1 per unit time and the weight increase of the slurry storage tank 1 per unit time.

[0063] The integrated metering device provided in this embodiment is mainly used to calculate the slurry flow rate produced by the slurry production side and the concentration of the produced slurry.

[0064] The specific implementation method of calculating the slurry flow rate is: adjust the slurry storage tank 1 to a horizontal state, and close the discharge port 11. At this time, use the weighing unit 2 and the slurry volume calculation unit 4 to obtain the initial weight and initial volume of the slurry storage tank 1, as well as the real-time weight and real-time volume after the slurry is poured in. According to the increase in the slurry volume in the slurry storage tank 1 per unit time, the slurry flow rate produced by the slurry generation side is determined, and the slurry concentration produced by the slurry generation side is determined in combination with the increase in the slurry volume and the increase in the slurry weight in the slurry storage tank 1 per unit time.

[0065] After the measurement is completed, the side thrust assembly 5 is used to adjust the slurry storage tank 1 to an inclined state, and the discharge port 11 is opened. At this time, the slurry storage tank 1 is separated from the weighing unit 2, so the weighing unit 2 and the slurry volume calculation unit 4 stop working, and the slurry in the slurry storage tank 1 is discharged from the discharge port 11, and readjusted to the initial state for the next metering work.

[0066] Therefore, this embodiment sets up an integrated online metering system for mineral processing slurry between the slurry production side and the slurry transmission side. In the entire mineral processing process, real-time measurement of the slurry concentration and the slurry flow rate per unit time is completed. There is no need to extract slurry from the slurry production side. The slurry concentration and slurry flow rate are measured using metering devices outside the mineral processing process, thereby improving the calculation accuracy and timeliness of the slurry flow rate and slurry concentration, and the implementation method is simple and convenient.

[0067] Specific examples include Figure 1 , Figure 2 and Figure 4 As shown, in order to store the ore pulp and discharge it in time, one of the side panels 12 of the slurry storage tank 1 is movably installed, and the side panel 12 is pushed and rotated to form a discharge port 11 of the slurry storage tank 1.

[0068] The upper end of the side panel 12 forms a cylindrical rod 13 , and the upper end of the side panel 12 is movably mounted on the cylindrical rod 13 and can rotate around the cylindrical rod 13 .

[0069] The two parallel sides of the slurry storage tank 1 are provided with a pushing cylinder assembly 14 for pushing the side panel 12 to rotate. The pushing cylinder assembly 14 pulls the side panel 12 to rotate downward to close the side of the slurry storage tank 1, so that the slurry is stored in the slurry storage tank 1. The pushing cylinder assembly 14 pushes the side panel 12 to rotate upward, so that a discharge port 11 is formed on the side of the slurry storage tank 1.

[0070] The pushing cylinder assembly 14 includes a mounting base 141 arranged on two parallel sides of the slurry storage tank 1, on which a rotatable horizontal pushing cylinder 142 is movably mounted, and the telescopic shaft of the horizontal pushing cylinder 142 is movably mounted on the extension rod on the side panel 12.

[0071] The horizontal pushing cylinder 142 pushes the upper end of the side panel 12 to rotate around the cylindrical rod 13 through telescopic movement, so that a discharge port 11 is formed at the bottom of the side of the slurry storage tank 1.

[0072] The horizontal push cylinder 142 is used to push the side panel 12 of the slurry storage tank 1 to rotate. When the telescopic shaft of the horizontal push cylinder 142 is extended, the top of the side panel 12 rotates upward around the cylindrical rod 13, and the bottom of the side panel 12 and the side of the slurry storage tank 1 form a discharge port 11. At this time, it is also necessary to cooperate with the side push assembly 5 to adjust the slurry storage tank 1 to an inclined state to discharge the slurry more quickly.

[0073] When the telescopic shaft of the horizontal pushing cylinder 142 retracts, the top of the side panel 12 rotates downward around the cylindrical rod 13, and the bottom of the side panel 12 and the side of the slurry storage tank 1 form a vertical panel to close the discharge port 11. It is also necessary to cooperate with the side pushing assembly 5 to adjust the slurry storage tank 1 to a horizontal state. At this time, the slurry storage tank 1 is equivalent to a storage tank, which is used to receive the slurry produced by the slurry generation side to calculate the flow rate and slurry concentration of the produced slurry per unit time.

[0074] In order to realize the weighing work, the weighing unit 2 includes a plurality of evenly distributed pressure sensors arranged below the bottom surface of the slurry storage tank 1 , and the weighing unit 2 is used to weigh the slurry storage tank 1 as a whole and the slurry stored in the slurry storage tank 1 .

[0075] It should be noted that if Figure 2 As shown, in this embodiment, the weighing unit 2 is arranged below the slurry storage tank 1 to weigh the entire slurry storage tank 1, to obtain the initial weight of the slurry storage tank 1 before receiving the slurry, and the real-time weight after receiving the slurry, so as to more accurately determine the total amount of slurry received in the slurry storage tank 1 and improve the calculation accuracy.

[0076] like Figures 1 to 4 As shown, a sealing cover 15 is provided on the upper end surface of the slurry storage tank 1, and a strip slurry feeding groove 16 is provided in the middle position of the sealing cover 15 to form a feed inlet. The slurry produced by the slurry production side enters the slurry storage tank 1 through the strip slurry feeding groove 16.

[0077] The slurry volume calculation unit 4 includes a plurality of laser measuring instruments arranged on the sealing covers 15 on both sides of the strip slurry feeding trough 16, and uses the laser measuring instruments to determine the slurry distribution state in the slurry storage tank 1, and determines the slurry distribution volume in the slurry storage tank 1 according to the slurry distribution state.

[0078] In order to calculate the volume of the slurry, the slurry inlet of the slurry storage tank 1 is designed to be in the middle of the sealing cover 15. Due to the strip shape, the slurry can be evenly distributed in the slurry storage tank 1.

[0079] A plurality of laser measuring instruments are arranged on the sealing covers 15 on both sides of the strip-shaped slurry feeding trough 16 to uniformly measure the slurry distribution height at each point, and a slurry distribution height map is formed after smoothing, so as to calculate the slurry distribution volume.

[0080] Furthermore, in the initial state, the initial weight and initial volume of the slurry storage tank 1 are obtained according to the measurement results of the weighing unit 2 and the slurry volume calculation unit 4;

[0081] The slurry flow rate produced by the slurry generation side is determined according to the change in slurry distribution volume per unit time, and the slurry concentration produced by the slurry generation side is determined according to the change in slurry distribution volume and slurry weight per unit time.

[0082] After completing the detection of concentration and flow rate, the slurry in the slurry storage tank 1 is discharged by using the side thrust assembly 5. The side thrust assembly 5 includes a vertical thrust cylinder 51 arranged on both sides of the weighing unit 2. The bottom of the vertical thrust cylinder 51 is movably installed on the positioning pile 52. The telescopic shaft of the vertical thrust cylinder 51 is connected to the two side edges of the slurry storage tank 1, and the edge of the slurry storage tank 1 located at the lower end of the discharge port 11 is a movable hinge connection. The vertical thrust cylinder 51 pushes the slurry storage tank 1 to rotate around the hinge point at its lower end through up and down vertical movements, so that the entire slurry storage tank 1 is in an inclined state, and the slurry in the slurry storage tank 1 is discharged from the discharge port 11.

[0083] Furthermore, the side thrust assembly 5 needs to cooperate with the pushing cylinder assembly 14 to work. When the telescopic shaft of the vertical pushing cylinder 51 pushes the slurry storage tank 1 upward to rotate around the hinge point at its lower end, so that the entire slurry storage tank 1 is in a tilted state, the telescopic shaft of the horizontal pushing cylinder 142 is extended, and the top of the side panel 12 rotates upward around the cylindrical rod 13. The bottom of the side panel 12 and the side of the slurry storage tank 1 form a discharge port 11, thereby discharging the slurry in the slurry storage tank 1 from the discharge port 11 to the transmission side.

[0084] When the telescopic shaft of the vertical pushing cylinder 51 pulls the slurry storage tank 1 downward to rotate in the opposite direction around the hinge point at its lower end, so that the entire slurry storage tank 1 is in a horizontal state, the telescopic shaft of the horizontal pushing cylinder 142 is retracted, and the top of the side panel 12 rotates downward around the cylindrical rod 13, and the bottom of the side panel 12 is closed with the side of the slurry storage tank 1, thereby forming the slurry storage tank 1 into a material storage pool, and further completing the next metering work.

[0085] In addition, this embodiment also provides an online metering method for mineral processing using the above-mentioned mineral processing slurry integrated online metering system, such as Figure 6 As shown, the following steps are included:

[0086] The integrated online metering system for mineral processing slurry is set between the slurry production side and the transmission side, and the slurry flow rate and slurry concentration produced by the slurry generation side are calculated by the integrated online metering system for mineral processing slurry;

[0087] When measuring the slurry flow rate and slurry concentration produced by the slurry production side, the slurry storage tank is adjusted to a horizontal state, and the discharge port is closed to obtain the initial weight and initial volume of the slurry storage tank;

[0088] The slurry produced by the slurry production side is received by the slurry storage tank, and the real-time weight and real-time volume of the slurry storage tank are measured in real time. The slurry flow rate produced by the slurry production side per unit time is determined according to the volume change of the slurry storage tank per unit time, and the concentration of the slurry produced by the slurry production side is determined according to the volume change and weight change of the slurry storage tank per unit time;

[0089] After completing the measurement of the slurry flow rate and slurry concentration, the slurry storage tank is adjusted to an inclined state, and the discharge port is opened to discharge the slurry in the slurry storage tank. When there is no need to measure the slurry flow rate and slurry concentration produced by the slurry production side, the slurry storage tank is kept in an inclined state, and the discharge port is opened, and the slurry storage tank serves as a transfer component.

[0090] The method for obtaining the initial volume of the slurry storage tank is as follows:

[0091] When the slurry storage tank is adjusted to a horizontal state and the weighing unit obtains the weight of the slurry storage tank, the height distribution value corresponding to each monitoring point obtained by the slurry volume calculation unit is obtained;

[0092] Based on the height distribution values ​​of all monitoring points, smoothing is performed to obtain the current surface distribution form and slurry distribution height of the slurry storage tank, a three-dimensional coordinate system is constructed, and a three-dimensional distribution map of the slurry in the slurry storage tank is determined;

[0093] The slurry volume formed based on the three-dimensional distribution diagram of the slurry in the slurry storage tank is used as the initial volume of the slurry storage tank.

[0094] The laser beam of the laser measuring instrument in the slurry volume calculation unit near the middle of the upper top plate of the slurry storage tank is in an inclined state to measure the slurry distribution height just below the slurry inlet of the slurry storage tank;

[0095] Determine the position coordinates of the detection point of each laser measuring instrument in the slurry volume calculation unit relative to the three-dimensional coordinate system;

[0096] Based on the slurry distribution height detected by each laser measuring instrument and the three-dimensional coordinate value of each laser measuring instrument detection point, the three-dimensional distribution map of the slurry in the slurry storage tank is determined.

[0097] The next monitoring work is carried out at fixed intervals. The specific implementation method is as follows:

[0098] First, close the discharge port, then adjust the slurry storage tank to a horizontal state, and regain the initial weight and initial volume of the slurry storage tank;

[0099] The real-time weight and volume of the slurry storage tank are obtained in real time, and the slurry flow rate and the slurry concentration produced per unit time on the slurry production side are calculated again.

[0100] In this embodiment, an integrated online metering system for mineral processing slurry is set up between the slurry production side and the slurry transmission side, which can calculate the slurry concentration produced by the slurry production side and the slurry flow rate per unit time, thereby realizing the integrated and simultaneous measurement of the slurry concentration and the slurry flow rate. At the same time, the metering device, in the non-monitoring stage, can serve as a transfer unit to transfer the slurry produced by the slurry production side to the transmission side. When the metering device is used for monitoring and metering, the metering device is adjusted to the monitoring and metering state, thereby realizing the synchronous measurement of the slurry concentration and the slurry flow rate.

[0101] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. An integrated online metering system for mineral processing slurry, characterized in that: include: A slurry storage tank (1) is used to store ore slurry, one side of which is formed with a discharge port (11) for discharging the ore slurry, and an upper end surface thereof is formed with a feed port, and the slurry storage tank (1) is movably hingedly mounted on the lower edge on the same side as the discharge port (11); A weighing unit (2) is arranged below the slurry storage tank (1), and the weighing unit (2) is connected to a control system (3) and is used to obtain the total weight of the slurry storage tank (1) and the slurry therein; A slurry volume calculation unit (4) is arranged on the upper end surface of the slurry storage tank (1) and is located on both sides of the feed port, and the slurry volume calculation unit (4) is connected to the control system (3) and is used to obtain the slurry volume in the slurry storage tank (1); A side push assembly (5) is arranged below the slurry storage tank (1) and installed on the side away from the discharge port (11), and is used to push the slurry storage tank (1) to rotate around its movable hinge point so as to discharge the slurry in the slurry storage tank (1) from the discharge port (11). The side push assembly (5) is connected to the control system (3). The control system (3) controls the side push assembly (5) to rotate the slurry storage tank (1) to an inclined state so that the slurry in the slurry storage tank (1) flows out from the discharge port. The control system (3) controls the side push assembly (5) to restore the slurry storage tank (1) to a horizontal state so as to use the slurry storage tank (1) to store slurry; When the slurry storage tank (1) stores slurry, the control system (3) uses the slurry volume calculation unit (4) to calculate the volume of slurry flowing into the slurry storage tank (1) per unit time, and calculates the flow rate of the slurry based on the slurry volume and the calculation time; When the slurry storage tank (1) stores slurry, the control system (3) uses the slurry volume calculation unit (4) to calculate the volume of slurry flowing into the slurry storage tank (1) per unit time, and uses the weighing unit (2) to calculate the weight increase of the slurry storage tank (1) per unit time, and determines the concentration of the slurry according to the matching result of the volume of slurry flowing into the slurry storage tank (1) per unit time and the weight increase of the slurry storage tank (1) per unit time.

2. The integrated online metering system for mineral processing slurry according to claim 1 is characterized in that: One of the side panels (12) of the slurry storage tank (1) is movably installed, and the side panel (12) is pushed and rotated to form a discharge port (11) of the slurry storage tank (1); The upper end of the side panel (12) forms a cylindrical rod (13), and the upper end of the side panel (12) is movably mounted on the cylindrical rod (13) and can rotate around the cylindrical rod (13); The two parallel sides of the slurry storage tank (1) are provided with a pushing cylinder assembly (14) for pushing the side panel (12) to rotate; the pushing cylinder assembly (14) pulls the side panel (12) to rotate downward to close the side of the slurry storage tank (1), so that the slurry is stored in the slurry storage tank (1); the pushing cylinder assembly (14) pushes the side panel (12) to rotate upward, so that a discharge port (11) is formed on the side of the slurry storage tank (1).

3. The integrated online metering system for mineral processing slurry according to claim 2 is characterized in that: The pushing cylinder assembly (14) comprises a mounting base (141) arranged on two parallel side surfaces of the slurry storage tank (1), a rotatable horizontal pushing cylinder (142) is movably mounted on the mounting base (141), and a telescopic shaft of the horizontal pushing cylinder (142) is movably mounted on an extension rod on the side panel (12); The horizontal pushing cylinder (142) pushes the upper end of the side panel (12) to rotate around the cylindrical rod (13) through telescopic movement, so that a discharge port (11) is formed at the bottom of the side of the slurry storage tank (1).

4. The integrated online metering system for mineral processing slurry according to claim 1 is characterized in that: The weighing unit (2) comprises a plurality of uniformly distributed pressure sensors arranged below the bottom surface of the slurry storage tank (1), and the weighing unit (2) is used to weigh the slurry storage tank (1) as a whole and the slurry stored in the slurry storage tank (1).

5. The integrated online metering system for mineral processing slurry according to claim 1 is characterized in that: The upper end surface of the slurry storage tank (1) is provided with a sealing cover (15), and a strip-shaped slurry feeding groove (16) is provided in the middle position of the sealing cover (15) to form a feed inlet, and the slurry produced by the slurry production side enters the slurry storage tank (1) through the strip-shaped slurry feeding groove (16); The slurry volume calculation unit (4) comprises a plurality of laser measuring instruments arranged on the sealing cover (15) on both sides of the strip-shaped slurry feeding trough (16), and the slurry distribution state in the slurry storage tank (1) is determined by using the laser measuring instruments, and the slurry distribution volume in the slurry storage tank (1) is determined by using the slurry distribution state.

6. The integrated online metering system for mineral processing slurry according to claim 2 is characterized in that: The side thrust assembly (5) comprises a vertical thrust cylinder (51) arranged on both sides of the weighing unit (2), the bottom of the vertical thrust cylinder (51) is movably mounted on a positioning pile (52), the telescopic shaft of the vertical thrust cylinder (51) is connected to both sides of the slurry storage tank (1), and the edge of the slurry storage tank (1) located at the lower end of the discharge port (11) is in a movable hinged connection mode; The vertical propulsion cylinder (51) propels the slurry storage tank (1) to rotate around the hinge point at its lower end through up and down vertical movements, so that the entire slurry storage tank (1) is tilted, and the slurry in the slurry storage tank (1) is discharged from the discharge port (11).

7. An online metering method for mineral processing using the integrated online metering system for mineral processing slurry according to any one of claims 1 to 6, characterized in that: The following steps are involved: The integrated online metering system for mineral processing slurry is arranged between the slurry production side and the transmission side, and the slurry flow rate and slurry concentration produced by the slurry generation side are calculated by the integrated online metering system for mineral processing slurry; When measuring the slurry flow rate and slurry concentration produced by the slurry production side, the slurry storage tank is adjusted to a horizontal state, and the discharge port is closed, and the initial weight and initial volume of the slurry storage tank are obtained; The slurry storage tank is used to receive the slurry produced by the slurry production side, and the real-time weight and real-time volume of the slurry storage tank are measured in real time. According to the volume change of the slurry storage tank in unit time, the slurry flow rate produced by the slurry production side in unit time is determined, and according to the volume change and weight change of the slurry storage tank in unit time, the concentration of the slurry produced by the slurry production side is determined; After completing the measurement of the slurry flow rate and the slurry concentration, the slurry storage tank is adjusted to an inclined state, and the discharge port is opened to discharge the slurry in the slurry storage tank. When there is no need to measure the slurry flow rate and the slurry concentration produced by the slurry production side, the slurry storage tank is kept in an inclined state, and the discharge port is opened, and the slurry storage tank serves as a transfer component.

8. An online measurement method for mineral processing according to claim 7, characterized in that: The implementation method of obtaining the initial volume of the slurry storage tank is: When the slurry storage tank is adjusted to a horizontal state and the weighing unit obtains the weight of the slurry storage tank, the height distribution value corresponding to each monitoring point obtained by the slurry volume calculation unit is obtained; Based on the height distribution values ​​of all monitoring points, smoothing is performed to obtain the current surface distribution form and slurry distribution height of the slurry in the slurry storage tank, a three-dimensional coordinate system is constructed, and a three-dimensional distribution map of the slurry in the slurry storage tank is determined; The slurry volume formed based on the three-dimensional distribution diagram of the slurry in the slurry storage tank is used as the initial volume of the slurry storage tank.

9. The on-line measurement method for mineral processing according to claim 8, characterized in that: The laser beam of the laser measuring instrument in the slurry volume calculation unit near the middle position of the upper top plate of the slurry storage tank is in an inclined state to measure the slurry distribution height directly below the slurry inlet of the slurry storage tank; Determining the position coordinates of the detection point of each of the laser measuring instruments in the slurry volume calculation unit relative to the three-dimensional coordinate system; Based on the slurry distribution height detected by each laser measuring instrument and the three-dimensional coordinate value of each detection point of the laser measuring instrument, a three-dimensional distribution map of the slurry in the slurry storage tank is determined.

10. The on-line measurement method for mineral processing according to claim 8, characterized in that: The next monitoring work is carried out at fixed intervals. The specific implementation method is as follows: Firstly, the discharge port is closed, and then the slurry storage tank is adjusted to a horizontal state, and the initial weight and initial volume of the slurry storage tank are regained; The real-time weight and real-time volume of the slurry storage tank are obtained in real time, and the slurry flow rate produced by the slurry production side per unit time and the slurry concentration produced per unit time are calculated again.

Images