CN109382215B - Automatic lime milk adding system - Google Patents
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- CN109382215B CN109382215B CN201811147200.4A CN201811147200A CN109382215B CN 109382215 B CN109382215 B CN 109382215B CN 201811147200 A CN201811147200 A CN 201811147200A CN 109382215 B CN109382215 B CN 109382215B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/145—Feed mechanisms for reagents
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Abstract
The invention relates to an automatic lime milk adding system, which solves the problem that a conventional valve is easily blocked by coarse-particle materials in lime milk liquid in production, and can ensure that the content of the coarse-particle materials with the particle size of less than or equal to 3mm in the lime milk liquid is smooth within the range of less than or equal to 30 percent. Lime milk required to be added into a flotation tank in the system flows into a slurry storage barrel through a lime milk preparation box, then flows into a backflushing fan-shaped inclined plate adder, is inserted into a slurry inlet pipe in a blind pipe sleeve, flows into a fan-shaped inclined plate through backflushing and flows out in a waterfall shape, and the lime milk intercepted by a slurry receiving tank below the fan-shaped inclined plate flows into the slurry storage barrel through a diversion tank. Lime milk which is not intercepted flows into the returning barrel and is pumped back to the pulp storage barrel. The electrode sensor inserted into the flotation cell shows the pH on the screen. Manually, a gear electric button in the automatic lime milk adding controller is pressed, and the motor is instructed to drive the slurry receiving tank connected with the screw rod nut to rotate leftwards or rightwards, so that the using amount of the lime milk is adjusted.
Description
Technical Field
The invention relates to an adding system for regulating and controlling the flow of slurry, in particular to an adding system for manually regulating and controlling the flow of coarse particle-containing multiphase suspension or lime milk slurry.
Background
Mineral separation production practice and theoretical research show that satisfactory production technical indexes can be obtained only under the condition of proper pulp value and pH value in production through flotation, and the influence of balanced and stable supply of lime milk on the grade and recovery rate of mineral separation concentrate is great.
The existing methods for adding lime milk in production include two methods: one is the manual method. And an operator uses the pH test paper to measure the pH value of the ore pulp, and when the pH value exceeds the technical requirement range of the process, the addition amount of the lime milk is adjusted to be within the technical requirement range by adjusting the opening degree of the ball valve. Obviously, measurement and adjustment are frequent, labor intensity is high, when the quality of the quicklime fluctuates slightly, some insoluble impurities and sand and stones are generated in the preparation process, and the insoluble impurities and the sand and stones are contained in the lime whey liquid in the form of particles with different qualities, and especially when the content of coarse-particle materials with the size of 3mm in the lime whey liquid is more than or equal to 3%, the ball valve is blocked by the coarse-particle sand and stones or undigested quicklime frequently, so that great influence is brought to production. The manual method is also influenced by various factors, the pH value of the adjusted ore pulp is usually lagged, the fluctuation range of the adjusted ore pulp is large, and the requirement of the flotation technology can not be met.
The second is an automatic addition method. In short, it is composed of pH electrode sensor, controller, flow switch, etc. The sensor sends the detected pH value of the ore pulp into the controller, after the controller processes the input signal, the actuating mechanism adjusts the valve opening degree of the electromagnetic valve or the pneumatic butterfly valve or the pneumatic rubber tube valve according to the instruction, and then adjusts the addition amount of the lime milk, thereby achieving the purpose of automatically controlling the pH value. However, the automatic addition method still adopts a valve device to control the flow of the lime milk, the blockage situation is often more serious, and finally the automatic addition method is difficult to popularize and apply in production.
Firstly, because lime solubility is low, the lime exists in a particle form after digestion to form multi-phase suspension liquid which is strong in alkalinity, the lime suspension liquid is corrosive, high in viscosity and easy to dry, and can be layered and precipitated when flow speed is low or flow is small to cause calcium accumulation, so that the caliber of the valve is seriously narrowed, and the normal opening and closing degree of the valve is finally influenced; secondly, coarse insoluble impurities and sand stones generated in the lime milk preparation process are carried and directly block the valve.
Therefore, no matter a manual method or an automatic addition method is adopted to add the lime cream, when the content of coarse particle materials with the particle size of about 3mm is more than or equal to 3 percent, various valves are easy to block, and the problem to be solved in production is urgently needed.
Disclosure of Invention
The invention aims to provide an automatic lime milk adding system which is simple in structure, adjustable and controllable in flow, capable of automatically adding multiphase suspension or lime milk slurry, and free from blockage when the content of coarse-particle materials with the particle size of less than or equal to 3mm in the slurry is less than or equal to 30%.
The invention is realized by the following steps:
the automatic lime milk adding system is characterized in that a gap of 3-300 mm is respectively reserved between a milk inlet pipe 1 and the bottom wall and the side wall of a blind pipe sleeve 2, the blind pipe sleeve 2 is connected with a base 16, a cut hole is formed above the waist of the blind pipe sleeve 2, the cut hole of the blind pipe sleeve 2 is formed by cutting an axial section and a section vertical to the axial section, an overflow port 4 formed by cutting the vertical section of the blind pipe sleeve 2 is in a sawtooth shape, the blind pipe sleeve 2 is connected with the upper part of an oblique sector inclined plate 3, the sector inclined plate 3 forms an included angle of 1-85 degrees with a horizontal line, the bottom edge 5 of the sector inclined plate 3 is in the sawtooth shape, the overflow port 4 of the blind pipe sleeve 2 is positioned above the sector inclined plate 3 and is higher than the lower end of the milk inlet pipe 1, the sector inclined plate 3 is in an isosceles sector shape, the upper edge of the sector inclined plate is matched with the outer wall of the blind pipe sleeve, a side plate 6 is arranged on the, the screw rod 11 is matched with two nuts 12, the two nuts are positioned between two supporting bearings 13 of the screw rod, two ends of a long shaft of the slurry receiving tank 7 are respectively connected with the nuts 12, one end of the screw rod 11 is in transmission fit with a motor 14, a gear electric button 18 is connected with the motor 14, a splitter tank 8 is arranged below the slurry receiving tank 7, the splitter tank 8 is composed of a left concave inclined plane tank and a right concave inclined plane tank with obtuse intersection angles, a top line of the inclined plane intersection angle is intersected with the long shaft of the slurry receiving tank 7 in a spaced manner, top lines of two concave inclined plane intersection angles of the splitter tank 8 are close to the left side of the slurry receiving tank 7, a slurry outlet is arranged at the bottom of the slurry receiving tank 7, lime milk slurry required to be added by a flotation tank 24 flows into a lime milk storage barrel 21 through a lime milk preparation box 20 and then flows into a slurry inlet pipe 1, flows into a fan-shaped inclined plate 3 through a zigzag overflow port 4 of a blind pipe sleeve pipe 2 and flows out through a bottom edge 5 of the fan-shaped inclined plate 3 in a waterfall shape, the lime, the lime milk slurry 10 which is not intercepted flows into a return barrel 25 through a right concave inclined surface of the diversion channel 8, is pumped back to a slurry storage barrel 21 through a pump 26 for production, the lime milk slurry 9 which flows into the flotation channel 24 changes or stabilizes the pH value of the ore slurry in the flotation channel 24, an electrode sensor 23 which is inserted into the flotation channel 24 is connected with an online monitoring display 22, the pH value in the flotation channel 24 is returned to the display 22, the pH value is displayed on a screen, and the number of digital gear positions in the gear position electric button 18 is the same as the number of unit lengths generated by equally dividing the bottom edge length of the sector inclined plate 3. Manually pressing the required digital gear serial number in the gear button 18 instructs the motor 14 to drive the screw rod 11 to rotate left or right, and the stroke of the slurry receiving tank 7 is equal to the product of the pressed gear serial number multiplied by the unit length of the bottom edge of the sector sloping plate 3 which is equally divided.
Equally dividing the length of the bottom edge of the backflushing fan-shaped inclined plate into N unit lengths, wherein N is an integer, calculating the unit time of motor operation, wherein the axial track length of the movement of a nut on a screw is equal to the unit length of the equally divided bottom edge of the backflushing fan-shaped inclined plate, when the motor rotates forwards or reversely for one unit time, the nut on the screw rod drives a slurry receiving groove to move leftwards or rightwards by 1 equally divided unit length distance of the length of the bottom edge of the inclined plate, setting 1 unit time of motor operation as 1 gear, and setting N gears, namely 0 gear, 1 gear, 2 gear and … N gear, wherein 0 gear is 0 lime slurry amount intercepted by the slurry receiving groove; the amount of the lime milk slurry intercepted by the slurry receiving groove is 1/N in 1 grade, and the amount of the lime milk slurry intercepted by the slurry receiving groove is N/N in N grade, namely 1, the amount of all the lime milk slurry intercepted by the slurry receiving groove.
A slurry receiving groove position indicating needle is arranged on the nut, a graduated scale is arranged along the axial lower surface of the screw rod 11, the number N of graduations of the graduated scale is the same as the total number N of the unit lengths of the bottom edges of the sector inclined plates, and the lime slurry amount intercepted by the slurry receiving groove is 1/N when the indicating needle moves one graduation, so that the current flow of the lime slurry intercepted by the slurry receiving groove 7 can be observed and determined.
The bottom edge of the fan-shaped inclined plate 3 corresponds to the long axis of the slurry receiving tank 7 in parallel, the long axis of the slurry receiving tank 7 is equal to or longer than the bottom edge of the fan-shaped inclined plate 3, the diversion tank 8 corresponds to the long axis of the slurry receiving tank 7, the fan-shaped inclined plate 3 and the diversion tank 8 are not moved, the slurry amount 9 intercepted by the slurry receiving tank 7 gradually decreases along with the leftward movement of the slurry receiving tank 7 along the long axis until the lime milk slurry amount intercepted by the slurry receiving tank is 0, the slurry 9 intercepted by the slurry receiving tank 7 flows into the flotation tank 24 from the concave inclined surface at the left side of the diversion tank 8, the rest slurry 10 flowing out of the fan-shaped inclined plate 3 flows into the return barrel 25 from the concave inclined surface at the right side of the diversion tank 8 and is pumped back to the slurry storage barrel 21 by the pump 26 for production, the slurry receiving tank 7 moves rightwards along the long axis, and the lime milk slurry intercepted by the slurry receiving tank 7 gradually increases.
The invention has the following advantages:
the slurry flows into the blind pipe sleeve 2 from the slurry inlet pipe 1, the blind pipe sleeve 2 enables the slurry to be backflushed and flow out from a half waist overflow port of the blind pipe sleeve, the slurry cannot block and cannot abrade the bottom end of the blind pipe sleeve, and the slurry cannot be blocked when the content of coarse particle materials with the particle size of less than or equal to 3mm in the slurry is less than or equal to 30%. Because when the flow rate of the slurry is fixed, the recoil force is related to the pipe diameter difference of the slurry inlet pipe and the blind pipe sleeve and the insertion depth of the slurry inlet pipe. The pipe diameter of the pulp inlet pipe 1 is always equivalent to that of a pulp conveying pipeline, the back flushing force can be adjusted by changing the pipe diameter of the blind pipe sleeve 2 and the insertion depth of the pulp inlet pipe 1, and coarse particle materials cannot block a pipe seam between the pulp inlet pipe and the blind pipe sleeve and instead flow out from a half waist overflow port of the blind pipe sleeve by back flushing due to the fact that the insertion depth of the pulp inlet pipe 1 is not deep. The zigzag half waist overflow port can enable the slurry to form a slurry surface close to a plane at the overflow port, so that the slurry can flow into the sector inclined plate 3 from the whole overflow port. The fan-shaped inclined plate 3 not only can instantly enlarge the width of flowing slurry by several times, but also can form a relatively stable full-coverage thin flow layer on a fan-shaped surface, and the longer bottom edge of the fan-shaped inclined plate increases the unit length of the side length of the necessary equal partition for automatic control, thereby finally creating good conditions for improving the accuracy of the slurry intercepting amount of the slurry receiving tank.
The invention has simple structure, no blockage, durability and adjustable and controllable slurry flow. The invention can meet the requirement of adding lime milk in production by adjusting and controlling the flow rate as long as the concentration and the flow rate of the slurry flowing into the slurry inlet pipe are basically stable. The method allows the multiphase suspension or lime slurry to contain coarse-grained materials with the grain size less than or equal to 3mm to be less than or equal to 30 percent, and can better solve the production problem that the slurry is easy to block as long as the slurry contains about 3 percent of coarse-grained materials with the grain size of 3 mm. This advantage is not replaceable by various valve arrangements.
The principle of the automatic lime milk adding system is that the length of the zigzag side at the bottom edge of the backflushing fan-shaped inclined plate is divided into a plurality of equal parts, for example, 9 equal parts, and then the length of a horizontal track for driving a nut on a screw rod to move by calculating the number of revolutions of the motor in unit time is equal to the length of 9 equal parts of the zigzag side at the lower end of the inclined plate. According to manual instructions, when the motor rotates forwards or reversely for one unit time, the distance that the nut on the screw rod drives the slurry receiving groove to move leftwards or rightwards is equal to 1 equal-length distance of the side length of the lower end of the inclined plate. Then, the motor is set to 1 gear every 1 unit time of operation, and 10 gears, namely 0 gear, 1 gear, 2 gears to 9 gears are set in total. The amount of the lime milk slurry intercepted by the slurry receiving groove is 0 in the 0 grade, the amount of the lime milk slurry intercepted by the slurry receiving groove is 1/9 in the 1 grade, and the amount of the lime milk slurry intercepted by the slurry receiving groove is 9/9 until the 9 grade, namely the amount of all the lime milk slurry. Manually pressing a required gear button according to the requirement of the flotation process technology on the pH value of the ore pulp according to the pH value returned by an electrode sensor inserted into the flotation tank and the current lime milk flow indicated by a position serial number indicator of the observation slurry receiving tank so as to increase or decrease the addition of the lime milk slurry, thereby achieving the purpose of automatic control.
Drawings
FIG. 1 is a schematic structural diagram of an automatic lime milk adding system.
Fig. 2 is a schematic sectional view taken along line a-a of fig. 1.
Fig. 3 is a top view of fig. 2.
Detailed Description
The automatic lime milk adding system is characterized in that a 20 mm and 10 mm gap is respectively reserved between a pulp inlet pipe 1 and the bottom wall and the side wall of a blind pipe sleeve 2, the blind pipe sleeve 2 is connected with a base 16, a cut hole is formed above the waist of the blind pipe sleeve 2, the cut hole of the blind pipe sleeve 2 is formed by cutting an axial section and a section vertical to the axial section, an overflow port 4 formed by cutting the vertical section of the blind pipe sleeve 2 is in a sawtooth shape, the blind pipe sleeve 2 is connected with the upper part of an oblique sector inclined plate 3, the sector inclined plate 3 forms a 10-degree included angle with a horizontal line, the bottom edge 5 of the sector inclined plate 3 is in the sawtooth shape, the overflow port 4 of the blind pipe sleeve 2 is positioned above the sector inclined plate 3 and is higher than the lower end of the pulp inlet pipe 1, the sector inclined plate 3 is in an isosceles sector shape, the upper edge of the sector inclined plate is matched with the outer wall of the blind pipe sleeve, a side plate 6 is arranged on the isosceles, the screw rod 11 is matched with two nuts 12, the two nuts are positioned between two supporting bearings 13 of the screw rod, two ends of a long shaft of the slurry receiving tank 7 are respectively connected with the nuts 12, one end of the screw rod 11 is in transmission fit with a motor 14, a gear electric button 18 is connected with the motor 14, a splitter tank 8 is arranged below the slurry receiving tank 7, the splitter tank 8 is composed of a left concave inclined plane tank and a right concave inclined plane tank with obtuse intersection angles, a top line of the inclined plane intersection angle is intersected with the long shaft of the slurry receiving tank 7 in a spaced manner, top lines of two concave inclined plane intersection angles of the splitter tank 8 are close to the left side of the slurry receiving tank 7, a slurry outlet is arranged at the bottom of the slurry receiving tank 7, lime milk slurry required to be added by a flotation tank 24 flows into a lime milk storage barrel 21 through a lime milk preparation box 20 and then flows into a slurry inlet pipe 1, flows into a fan-shaped inclined plate 3 through a zigzag overflow port 4 of a blind pipe sleeve pipe 2 and flows out through a bottom edge 5 of the fan-shaped inclined plate 3 in a waterfall shape, the lime, lime milk slurry 10 which is not intercepted flows into a return barrel 25 through a right concave inclined surface of the diversion channel 8, is pumped back to a slurry storage barrel 21 through a pump 26 for production, lime milk slurry 9 flowing into the flotation channel 24 changes or stabilizes the pH value of ore slurry in the flotation channel 24, an electrode sensor 23 inserted into the flotation channel 24 is connected with an online monitoring display 22, the pH value in the flotation channel 24 is returned to the display 22, the pH value is displayed on a screen, and the number of digital gear positions in the gear position electric button 18 is the same as the number of unit lengths generated by equally dividing the length of the bottom edge of the sector inclined plate 3. Manually pressing the required digital gear serial number in the gear button 18 instructs the motor 14 to drive the screw rod 11 to rotate left or right, and the stroke of the slurry receiving tank 7 is equal to the product of the pressed gear serial number multiplied by the unit length of the bottom edge of the sector sloping plate 3 which is equally divided.
Equally dividing the bottom side length of the backflushing fan-shaped inclined plate into 9 unit lengths, calculating the unit time of motor operation, wherein the axial track length of the movement of a nut on a screw is equal to the unit length of the bottom side of the backflushing fan-shaped inclined plate which is equally divided, every time the motor rotates forwards or reversely for one unit time, the nut on a screw rod drives a slurry receiving groove to move leftwards or rightwards for 1 equally divided unit length distance of the bottom side length of the inclined plate, setting 1 unit time of motor operation as 1 grade, and setting N grades, namely 0 grade, 1 grade, 2 grade and … 9 grade, wherein 0 grade is 0 lime milk slurry amount intercepted by the slurry receiving groove; the amount of the lime milk slurry intercepted by the slurry receiving groove is 1/9 in the 1 st position, and the amount of the lime milk slurry intercepted by the slurry receiving groove is 9/9 in the 9 th position, namely 1 st position, which intercepts all the lime milk slurry amount for the slurry receiving groove.
A slurry receiving groove position indicating needle is arranged on the nut, a graduated scale is arranged along the axial lower surface of the screw rod 11, the graduation number 9 of the graduated scale is the same as the total number of the unit length of the bottom edge of the sector inclined plate, when the indicating needle moves one graduation, the lime milk slurry amount intercepted by the slurry receiving groove is 1/9, and the indicating needle is used for observing and determining the current flow of the lime milk slurry intercepted by the slurry receiving groove 7.
The bottom edge of the fan-shaped inclined plate 3 corresponds to the long axis of the slurry receiving tank 7 in parallel, the long axis of the slurry receiving tank 7 is equal to or longer than the bottom edge of the fan-shaped inclined plate 3, the diversion tank 8 corresponds to the long axis of the slurry receiving tank 7, the fan-shaped inclined plate 3 and the diversion tank 8 are not moved, the slurry amount 9 intercepted by the slurry receiving tank 7 gradually decreases along with the leftward movement of the slurry receiving tank 7 along the long axis until the lime milk slurry amount intercepted by the slurry receiving tank is 0, the slurry 9 intercepted by the slurry receiving tank 7 flows into the flotation tank 24 from the concave inclined surface at the left side of the diversion tank 8, the rest slurry 10 flowing out of the fan-shaped inclined plate 3 flows into the return barrel 25 from the concave inclined surface at the right side of the diversion tank 8 and is pumped back to the slurry storage barrel 21 by the pump 26 for production, the slurry receiving tank 7 moves rightwards along the long axis, and the lime milk slurry intercepted by the slurry receiving tank 7 gradually increases.
The invention consists of a lime milk preparation box, a lime milk storage barrel, a backflushing fan-shaped inclined plate automatic adding regulator, a flotation tank, a return barrel, a pH value on-line monitoring display, a lime milk automatic adding controller and the like. The backflushing fan-shaped inclined plate automatic adding regulator is connected with a lime milk preparation box and a lime milk storage barrel at the upper part and connected with a flotation tank and a return barrel at the lower part to form a circulation of returning lime milk required to be added in the flotation tank and residual lime milk slurry, and a pH value monitoring and lime milk automatic adding system is formed by a pH value on-line monitoring display and a lime milk automatic adding controller
The lime milk preparing box 20 in the system is used for filling prepared lime milk into a storage box by adopting the prior art, and the slurry storage barrel 21 is a transition container in the use process of the lime milk and is used for storing and uniformly supplying the lime milk to the backflushing fan-shaped inclined plate 3. The flotation tank 24 is a production facility commonly used for mineral separation and flotation, and the return barrel 25 collects the temporarily-discarded lime milk separated by the diversion tank 8, and returns the lime milk to the slurry storage barrel 21 through the sand pump 26 for production. The pH value on-line monitoring display is one kind of pH value display commonly used in production and consists of measuring electrode sensor and display capable of displaying the pH value the electrode sensor shifts into on the screen. It has the functions of on-line detection, real-time display, over-standard alarm, etc.
The device and the equipment are commonly used in production, but after the device and the equipment form a system together with a backflushing fan-shaped inclined plate automatic adding regulator and a lime milk automatic adding controller, the production result shows that the production problem that the lime milk slurry is easy to block and is regulated and controlled by a ball valve only by containing about 3 percent of coarse particle materials with the thickness of 3mm and the flow rate of the lime milk is allowed to be less than or equal to 30 percent. The production results also show that as long as the concentration and flow of the lime milk slurry supplied by the lime milk preparation tank 20 are basically stable, the flow of the lime milk regulated and controlled by the backflushing fan-shaped inclined plate automatic addition regulator can meet the pH value required by the flotation tank 24. The specific implementation mode is as follows:
lime milk slurry required to be added into the flotation tank 24 flows into a lime milk slurry storage barrel 21 through a lime milk preparation box 20, then flows into a slurry inlet pipe 1 in the backflushing fan-shaped inclined plate adder, flows into a fan-shaped inclined plate 3 through a zigzag overflow port 4 of a blind pipe sleeve 2, and flows out in a waterfall shape through a zigzag lower end edge 5 of the fan-shaped inclined plate. Lime milk slurry 9 intercepted by the slurry receiving tank 7 flows into the flotation tank 24 through the diversion tank 8, lime milk slurry 10 which is not intercepted flows into the return barrel 25 through the diversion tank 8, and is pumped back to the slurry storage barrel through the pump 26 for reproduction. The lime milk slurry flowing into the flotation tank 24 changes and stabilizes the pH of the slurry in the flotation tank and the electrode sensor 23 returns the pH in the flotation tank to the pH on-line monitoring display 22 and displays the pH. Manually observing the displayed pH value and the current lime milk flow displayed by a slurry receiving tank position indicator needle 19, determining the gear serial number of the lime milk flow which needs to be increased or decreased according to the ore slurry pH value required by the flotation process technical requirement of a flotation tank 24, and driving a nut 12 on a screw rod 11 to rotate leftwards or rightwards by a motor 14 according to the determined digital gear serial number in a gear button 18, thereby driving a slurry receiving tank 7 connected with the nut 12 to move leftwards and rightwards, intercepting the required lime milk flow, and achieving the purpose of automatically adding lime milk slurry.
Claims (4)
1. The automatic lime milk adding system is characterized in that a gap of 3-300 mm is respectively reserved between a milk inlet pipe (1) and the bottom wall and the side wall of a blind pipe sleeve positioned in the blind pipe sleeve (2), the blind pipe sleeve is connected with a base (16), the waist part of the blind pipe sleeve is a cut hole, the cut hole of the blind pipe sleeve is cut by an axial section and a section vertical to the axial section, an overflow port (4) of the blind pipe sleeve cut by the vertical section is in a sawtooth shape, the blind pipe sleeve is connected with the upper part of an inclined fan-shaped inclined plate (3), the fan-shaped inclined plate and a horizontal line form an included angle of 1-85 degrees, the bottom edge (5) of the fan-shaped inclined plate is in a sawtooth shape, the overflow port of the blind pipe sleeve is positioned above the fan-shaped inclined plate and higher than the lower end of the milk inlet pipe (1), the fan-shaped inclined plate is in an isosceles sector shape, the upper edge of the isosceles sector-shaped inclined plate is matched with the outer wall of the blind pipe sleeve, a side plate (6), the screw rod is matched with two nuts (12), the two nuts are positioned between two supporting bearings (13) of the screw rod, two ends of a long shaft of the slurry receiving tank are respectively connected with the nuts, one end of the screw rod is in transmission fit with a motor (14), a gear electric button (18) is connected with the motor, a shunt tank (8) is arranged below the slurry receiving tank, the shunt tank is composed of a left concave inclined plane tank and a right concave inclined plane tank with obtuse intersection angles, a top line of the intersection angle of the inclined planes is intersected with the long shaft of the slurry receiving tank in a spaced manner, top lines of the intersection angles of the two concave inclined planes of the shunt tank are close to the left side of the slurry receiving tank, a slurry outlet is arranged at the bottom of the slurry receiving tank, lime milk slurry required to be added by a flotation tank (24) flows into a lime milk storage tank (21) through a lime milk preparation box (20) and then flows into a slurry inlet pipe, flows into a fan-shaped inclined plate through a zigzag overflow port of a blind pipe sleeve, then flows out in a waterfall shape through a zigzag bottom edge of the fan-shaped, lime milk slurry (10) which is not intercepted flows into a return barrel (25) through a right concave inclined plane of a splitter box, is pumped back to a slurry storage barrel through a pump (26) for production, the lime milk slurry flowing into a flotation tank changes or stabilizes the pH value of ore slurry in the flotation tank, an electrode sensor (23) inserted into the flotation tank is connected with an online monitoring display (22), the pH value in the flotation tank is returned to the display (22), the pH value is displayed on a screen, the number of unit lengths generated by equally dividing the number of digital gears in a gear electric button is the same as the number of the unit lengths generated by equally dividing the length of the bottom edge of a sector inclined plate, a lead screw is driven to rotate left or right by manually according to the number of the digital gears required in the gear electric button, and the stroke of a slurry receiving tank is equal to the product of the number of the gear which is multiplied by the equally divided unit lengths of the bottom edge of the.
2. The automatic lime milk adding system according to claim 1, wherein the length of the bottom side of the backflushing fan-shaped inclined plate is equally divided into N unit lengths, N is an integer, the unit time of the motor operation is calculated, the axial track length of the movement of the nut on the screw is equal to the unit length of the bottom side of the backflushing fan-shaped inclined plate, when the motor rotates forwards or backwards for one unit time, the nut on the screw drives the slurry receiving groove to move leftwards or rightwards for 1 equal unit length distance of the side length of the lower end of the inclined plate, when the motor rotates for 1 unit time, N gears are set, namely 0 gear, 1 gear, 2 gear and … N gear, and 0 gear is 0 lime milk slurry amount intercepted by the slurry receiving groove; the amount of the lime milk slurry intercepted by the slurry receiving groove is 1/N in 1 grade, and the amount of the lime milk slurry intercepted by the slurry receiving groove is N/N in N grade, namely 1, the amount of all the lime milk slurry intercepted by the slurry receiving groove.
3. The automatic lime milk adding system according to claim 2, wherein a slurry receiving groove position indicating needle is arranged on the nut, a graduated scale is arranged below the screw rod (11) in the axial direction, the graduation number of the graduated scale is the same as the total number N of the unit length of the bottom edge of the sector inclined plate, and the indicating needle is provided with one graduation every time, the lime milk slurry amount intercepted by the slurry receiving groove is 1/N, and the system is used for observing and determining the current flow rate of the lime milk slurry intercepted by the slurry receiving groove (7).
4. The automatic lime milk adding system according to claim 1 or 2, wherein the bottom edge of the fan-shaped inclined plate (3) corresponds to the long axis of the slurry receiving tank (7) in parallel, the long axis of the slurry receiving tank is equal to or longer than the bottom edge of the fan-shaped inclined plate, the diversion tank corresponds to the long axis of the slurry receiving tank, the fan-shaped inclined plate and the diversion tank are stationary, the slurry amount intercepted by the slurry receiving tank gradually decreases as the slurry receiving tank moves leftwards along the long axis of the slurry receiving tank, until the lime milk slurry amount intercepted by the slurry receiving tank is 0, the slurry intercepted by the slurry receiving tank flows into the flotation tank (24) from the left concave inclined surface of the diversion tank, the rest of the slurry flowing out of the fan-shaped inclined plate flows into the return barrel from the right concave inclined surface of the diversion tank and is pumped back to the slurry storage barrel for production, and moves rightwards along the long axis of the slurry receiving tank after the slurry receiving tank, and the lime milk slurry intercepted by the slurry receiving tank gradually.
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| CN201811147200.4A CN109382215B (en) | 2018-09-29 | 2018-09-29 | Automatic lime milk adding system |
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| CN201811147200.4A CN109382215B (en) | 2018-09-29 | 2018-09-29 | Automatic lime milk adding system |
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| EP0098902A3 (en) * | 1982-07-06 | 1984-12-05 | Hjalmar Andreas Kaare Hitland | Cascade flotation process and apparatus for carrying out the process |
| CN2734335Y (en) * | 2004-05-25 | 2005-10-19 | 中国地质科学院成都矿产综合利用研究所 | Automatic drug feeding system |
| CN201906657U (en) * | 2010-12-15 | 2011-07-27 | 广东省大宝山矿业有限公司 | Lime milk additive preparing system |
| CN102040343B (en) * | 2010-12-20 | 2012-08-29 | 昆明理工大学 | Weighing lime milk automatical preparing device |
| CN202795069U (en) * | 2012-07-30 | 2013-03-13 | 昆明理工大学 | Measuring and control apparatus for lime milk flow |
| CN203695225U (en) * | 2014-01-14 | 2014-07-09 | 中国矿业大学(北京) | Full-automatic flotation reagent quantitative adding system |
| CN204815805U (en) * | 2015-07-20 | 2015-12-02 | 河南东大矿业股份有限公司 | Device is added to tail -box flocculating agent |
| ITUB20155870A1 (en) * | 2015-11-25 | 2017-05-25 | Previero Sas | METHOD AND APPARATUS FOR THE DETERMINATION OF ONE OR MORE SUBSTANCES FOR THE TREATMENT OF PLASTIC MATERIALS |
| CN105381872B (en) * | 2015-12-15 | 2017-10-31 | 吴振宇 | A kind of fan-shaped distributing device |
| CN206631774U (en) * | 2017-04-11 | 2017-11-14 | 淮南矿业(集团)有限责任公司 | A kind of flotation automatic medicament feeding system |
| CN207605880U (en) * | 2017-10-20 | 2018-07-13 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of flotation cell mineral pulp level continuously measures and regulating device |
| CN111545354B (en) * | 2018-02-06 | 2021-10-01 | 安徽理工大学 | Improved flotation system and flotation process for refractory minerals |
-
2018
- 2018-09-29 CN CN201811147200.4A patent/CN109382215B/en active Active
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