A quartz flotation device

Abstract

The invention discloses a quartz flotation device, which relates to the technical field of quartz sand processing, and comprises a flotation barrel. A stirring module and a driving module are arranged inside the flotation barrel. The driving module is used to drive the stirring module to rotate. The stirring module comprises a plurality of stirring blades and a stirring arm. The plurality of stirring blades comprises an inner stirring blade and an outer stirring blade. By arranging the stirring module in the flotation barrel and arranging the plurality of stirring blades and the stirring arm in the stirring module, the inner stirring blade generates a strong turbulence through high-speed rotation, so that the mineral particles in the ore pulp in the flotation barrel are fully mixed with the flotation reagent. The outer stirring blade rotates at a relatively low speed to form a stable circulation, so as to prevent the bubbles from merging and escaping. Meanwhile, the stirring arm is designed to be retractable, and the upward and downward retractable adjustment is realized by external force driving. The stirring depth can be automatically adjusted according to the change of the ore pulp level, so as to ensure the consistency of the stirring effect.

Description

Technical Field

[0001] The invention relates to the technical field of quartz sand processing, in particular to a quartz flotation device. Background Art

[0002] Flotation is a technology widely used in the field of mineral processing, mainly used to separate valuable minerals from ore pulp. In the flotation process, by adding flotation reagents to the ore pulp, the hydrophobicity and hydrophilicity of the mineral surface are changed, so that the hydrophobic mineral particles adhere to the bubbles, rise to the liquid surface with the bubbles to form a foam layer, and then are collected.

[0003] The Chinese patent with the authorization announcement number CN109127157B discloses a quartz sand flotation machine, comprising: a flotation box, the flotation box is provided with a flotation tank and a notch connected to the flotation tank; a blowing device, the blowing device is installed on the inner side wall of the flotation tank, and the output end of the blowing device is arranged toward the notch; a stirring tube, the stirring tube is inserted into the flotation tank, and the stirring tube is rotatably installed on the flotation box, and a stirring paddle is provided on the side of the stirring tube located in the flotation tank, and a gas transmission channel and an air outlet connected to the gas transmission channel are provided on the stirring paddle; through the stirring tube and the stirring paddle, not only can the quartz sand be stirred, but also a large amount of gas can be evenly transported into the flotation liquid, which is conducive to improving the flotation effect.

[0004] Although flotation technology plays an important role in mineral processing, it still faces some challenges in practical operation:

[0005] If the reagent cannot be evenly dispersed and fully contact the mineral particles, the flotation efficiency will be reduced;

[0006] Bubbles may coalesce or escape during their ascent, which reduces flotation efficiency and recovery;

[0007] Due to the lack of sufficient turbulence, some mineral particles may not be able to effectively attach to the bubbles, resulting in a decrease in recovery rate;

[0008] To this end, the present invention proposes a quartz flotation device to solve the above problems. Summary of the invention

[0009] In view of the above problems in the prior art, the present invention is proposed;

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions: a quartz flotation equipment, comprising a flotation barrel, a stirring module and a driving module are arranged inside the flotation barrel, the driving module is used to drive the stirring module to rotate, the stirring module comprises a plurality of stirring blades and a stirring arm, the plurality of stirring blades comprises an inner stirring blade and an outer stirring blade, the stirring arm is driven by an external force to adjust the stirring depth of the inner stirring blade and the outer stirring blade, and the inner stirring blade and the outer stirring blade are rotated at different speeds, the inner stirring blade generates strong turbulence by high-speed rotation, so that the mineral particles in the slurry in the flotation barrel are fully mixed with the flotation reagent, the outer stirring blade rotates at a relatively low speed to form a stable circulation to prevent the bubbles from merging and escaping;

[0011] The stirring arm comprises an upper stirring arm, a connecting arm, a stirring outer arm, a stirring inner arm and a bottom arm, an electric cylinder is arranged inside the upper stirring arm, the connecting arm is fixed to the output end of the electric cylinder, and the connecting arm is driven to linearly displace by the output end of the electric cylinder, the stirring outer arm is suspended from the top end of the connecting arm, the stirring inner arm is engaged with the inner cavity of the stirring outer arm, and the bottom arm is engaged with the bottom of the stirring outer arm;

[0012] An annular cavity is provided inside the stirring outer arm, and the annular cavity penetrates the side wall of the stirring outer arm to form an opening; an annular gear is provided at the end of the annular cavity of the stirring inner arm, the end of the stirring inner arm penetrates the bottom end of the stirring outer arm, and the inner stirring paddle is inserted into the end of the stirring inner arm;

[0013] The bottom arm comprises a cartridge adapted to the bottom end of the stirring outer arm, a circular ring gear welded to the top of the cartridge, and an annular frame welded to the bottom of the cartridge, and the outer stirring paddle is inserted into the inside of the annular frame;

[0014] The number of the inner stirring paddles and the outer stirring paddles are both multiple, and the multiple inner stirring paddles are fixed to the outer peripheral surface of the inner stirring arm in a circle with equal spacing, and the multiple outer stirring paddles are fixed to the outer peripheral surface of the bottom arm in a circle with equal spacing.

[0015] As a preferred solution of the quartz flotation device described in the present invention, wherein: the driving module includes a driving unit, a driven unit and a connecting unit, the driving unit drives the driven unit to rotate through the connecting unit, the driving unit includes a speed regulating motor and a rotating rod fixed to the shaft of the output end of the speed regulating motor, and the driven unit includes a driven rod, a driving gear 1 and a driving gear 2 fixed to the bottom end of the driven rod;

[0016] The connecting unit includes two groups of belt rollers fixed to the top of the driven rod and the rotating rod, and multiple driving belts are fixedly displayed on the surfaces of the two groups of belt rollers. The two groups of belt rollers operate synchronously through the driving belts, and multiple annular grooves compatible with the driving belts are opened on the surfaces of the two groups of belt rollers.

[0017] As a preferred solution of the quartz flotation equipment described in the present invention, a group of connecting plates are clamped on the surface of the driven rod, the driven rod is clamped on the side wall of the connecting arm through the connecting plates, and the rod body of the driven rod located at the upper end of the connecting plate is arranged as a telescopic rod.

[0018] As a preferred solution of the quartz flotation equipment described in the present invention, the driving gear 1 includes a gear frame and a plurality of racks welded to the outer circumference of the gear frame, and the plurality of racks are distributed at equal intervals.

[0019] As a preferred solution of the quartz flotation equipment described in the present invention, the flotation barrel is equipped with a weighing cylinder and a reagent storage tank, the weighing cylinder is provided with a pressure sensor for weighing, and the outlet of the reagent storage tank is provided with a metering pump for accurately controlling the volume of reagent released from the reagent storage tank.

[0020] As a preferred solution of the quartz flotation equipment described in the present invention, a heating film for heating the slurry in the flotation barrel is provided at the bottom of the flotation barrel, and density sensing elements for measuring the slurry concentration are attached to the inner wall of the flotation barrel and the surface of the connecting arm.

[0021] As a preferred solution of the quartz flotation equipment described in the present invention, a support module is also provided on the flotation barrel, and the support module includes a support arc plate for supporting the driving unit, a rotating assembly for driving the weighing cylinder to rotate, a support bar for supporting the driven unit and the stirring module, and a grafting plate for supporting the reagent storage tank.

[0022] Beneficial effects of the present invention: The present invention provides a stirring module in the flotation barrel, and the stirring module includes multiple layers of stirring blades and stirring arms. The inner stirring blade generates strong turbulence by high-speed rotation, so that the mineral particles in the slurry in the flotation barrel are fully mixed with the flotation reagent. The outer stirring blade rotates at a lower speed to form a stable circulation to prevent the bubbles from merging and escaping. At the same time, the stirring arm is designed to be retractable, and the upward and downward telescopic adjustment can be achieved through external force drive. The stirring depth can be automatically adjusted according to the change of the slurry level to ensure the consistency of the stirring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of a quartz flotation device in the present invention;

[0025] Figure 2 It is an axonometric diagram of the overall structure of the flotation barrel in the present invention;

[0026] Figure 3 For the present invention Figure 2 A magnified view of the structure at A;

[0027] Figure 4 It is a schematic diagram of the overall structure of the driving module in the present invention;

[0028] Figure 5 It is a schematic diagram of the overall structure of the stirring arm in the present invention;

[0029] Figure 6 It is a schematic diagram of the overall structure of the upper stirring arm of the present invention;

[0030] Figure 7 It is a schematic diagram of the overall structure of the connecting arm in the present invention;

[0031] Figure 8 It is a schematic diagram of the overall structure of the stirring outer arm in the present invention;

[0032] Fig. 9 This is a schematic diagram of the overall structure of the inner stirring arm in the present invention;

[0033] Fig.10 It is a schematic diagram of the overall structure of the bottom arm in the present invention;

[0034] Fig.11 It is a right side cross-sectional view of the flotation bucket structure in the present invention;

[0035] Fig.12 It is a front cross-sectional view of the flotation bucket structure of the present invention;

[0036] Fig.13 is a workflow diagram of the telescopic processing unit of the present invention;

[0037] Fig.14 The present invention is a flow chart for controlling the flotation reagent dosage and the speed of the speed regulating motor.

[0038] Figure numerals: 1, flotation barrel; 2, multi-layer stirring blades; 21, inner stirring blade; 22, outer stirring blade; 3, stirring arm; 31, upper stirring arm; 311, electric cylinder; 32, connecting arm; 33, stirring outer arm; 34, stirring inner arm; 341, ring gear; 35, bottom arm; 351, cartridge; 352, circular ring gear; 353, ring frame; 4, driving module; 41, driving unit; 411, speed regulating motor; 412, rotating rod; 42, driven unit; 421, driven rod; 422, driving gear One; 423, driving gear two; 43, connecting unit; 431, belt roller; 432, driving belt; 433, annular groove; 44, connecting plate; 5, weighing cylinder; 6, medicine storage tank; 61, metering pump; 7, rotating part; 71, ring; 72, ball; 73, side clamp; 74, short rod; 8, supporting module; 81, supporting arc plate; 82, rotating assembly; 821, bonding plate; 822, flip bar; 823, horizontal bar; 83, supporting bar; 831, bar body; 832, positioning short rod; 84, grafting plate. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings;

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention, so the present invention is not limited to the specific embodiments disclosed below;

[0041] Secondly, the "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the present invention; the "in one embodiment" appearing in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments;

[0042] Reference Figure 1 to Figure 14As shown, the present embodiment provides a quartz flotation equipment, including a flotation barrel 1, wherein a stirring module and a driving module 4 are arranged inside the flotation barrel 1, wherein the driving module 4 is used to drive the stirring module to rotate, wherein the stirring module includes a multi-layer stirring blade 2 and a stirring arm 3, wherein the multi-layer stirring blade 2 includes an inner stirring blade 21 and an outer stirring blade 22, wherein the inner stirring blade 21 generates a strong turbulence by rotating at a high speed, so that the mineral particles in the slurry in the flotation barrel 1 are fully mixed with the flotation reagent, and the outer stirring blade 22 rotates at a lower speed to form a stable circulation to prevent the bubbles from merging and escaping; the stirring arm 3 is driven by an external force to adjust the stirring depth of the inner stirring blade 21 and the outer stirring blade 22, and the inner stirring blade 21 and the outer stirring blade 22 rotate at different speeds, and the stirring arm 3 is designed to be retractable, and the upward and downward retractable adjustment is realized by external force driving, and the stirring depth can be automatically adjusted according to the change of the slurry level to ensure the consistency of the stirring effect.

[0043] The stirring arm 3 includes an upper stirring arm 31, a connecting arm 32, a stirring outer arm 33, a stirring inner arm 34 and a bottom arm 35. An electric cylinder 311 is arranged inside the upper stirring arm 31. The connecting arm 32 is fixed to the output end of the electric cylinder 311. The connecting arm 32 is driven to move linearly through the output end of the electric cylinder 311, so that the stirring arm 3 is telescopically movable, and the stirring depth is automatically adjusted according to the change of the slurry level to ensure the consistency of the stirring effect.

[0044] Among them, the inner wall of the flotation tank 1 is attached with a radar level meter and a telescopic control unit, and the telescopic control unit includes a telescopic processing unit, a secondary judgment unit and a telescopic execution unit;

[0045] The telescopic processing unit is provided with a liquid level threshold δ and a standard error γ. The telescopic processing unit receives the actual liquid level α transmitted by the radar level meter, compares the actual liquid level α with the liquid level threshold δ, calculates and outputs a liquid level difference ζ between the actual liquid level α and the liquid level threshold δ, thereby generating a primary judgment signal, and analyzes and determines whether the liquid level difference ζ is within the standard error γ interval based on the primary judgment signal, thereby generating a secondary judgment signal, and refreshes the analysis based on the secondary judgment signal, and generates an upper execution signal or a lower execution signal according to the positive or negative value of the liquid level difference ζ, and controls the output end of the electric cylinder 311 to adjust the position of the inner layer stirring paddle 21 downward based on the upper execution signal, and controls the output end of the electric cylinder 311 to adjust the inner layer stirring paddle 21 to reciprocate between the position and the bottom surface of the flotation barrel 1, and controls the output end of the electric cylinder 311 to adjust the position of the inner layer stirring paddle 21 upward based on the lower execution signal, and controls the output end of the electric cylinder 311 to adjust the inner layer stirring paddle 21 to reciprocate between the position and the bottom surface of the flotation barrel 1.

[0046] Furthermore, the standard error γ interval of this embodiment is calculated by the standard error γ, and the specific standard error γ interval is (-γ, +γ);

[0047] The telescopic control unit is provided with control logic for adjusting the position of the inner stirring paddle 21 by controlling the electric cylinder 311 to drive the inner stirring paddle 21 to reciprocate;

[0048] The telescopic processing unit receives the actual liquid level height α transmitted by the radar level gauge, compares the actual liquid level height α with the liquid level height threshold δ, calculates and outputs the liquid level difference ζ between the actual liquid level height α and the liquid level height threshold δ, thereby generating a primary judgment signal, refreshes and analyzes the primary judgment signal, and determines whether the liquid level difference ζ is within the standard error interval γ, thereby generating a secondary judgment signal;

[0049] Among them, if the liquid level difference ζ is within the standard error γ interval, no secondary judgment signal is generated;

[0050] If the liquid level difference ζ is not within the standard error γ interval, a secondary judgment signal is generated.

[0051] The secondary judgment unit refreshes and analyzes the secondary judgment signal, judges whether the liquid level difference ζ is positive or negative, and generates an upper execution signal or a lower execution signal based on the positive or negative liquid level difference ζ;

[0052] If the liquid level difference ζ is a negative value, it indicates that the actual liquid level α is lower than the liquid level threshold δ, and a down execution signal is generated;

[0053] If the liquid level difference ζ is a positive value, it indicates that the actual liquid level height α is higher than the liquid level height threshold δ, and an upper execution signal is generated.

[0054] The telescopic execution unit receives the upper execution signal or the lower execution signal, refreshes and analyzes the upper execution signal or the lower execution signal, and controls the output end movement of the electric cylinder 311 based on the upper execution signal or the lower execution signal;

[0055] If the received signal is an upward execution signal, indicating that the actual liquid level height α is higher than the liquid level height threshold δ, the output end of the control electric cylinder 311 is adjusted to move the position of the inner stirring paddle 21 downward, and the downward movement distance of the inner stirring paddle 21 is the liquid level difference ζ between the actual liquid level height α and the liquid level height threshold δ. After adjusting the position, the output end of the control electric cylinder 311 is adjusted to reciprocate the inner stirring paddle 21 between the position and the bottom surface of the flotation barrel 1;

[0056] If the received signal is a downward execution signal, indicating that the actual liquid level height α is lower than the liquid level height threshold δ, the output end of the control electric cylinder 311 adjusts the position of the inner stirring paddle 21 to move upward, and makes the inner stirring paddle 21 move downward by the liquid level difference ζ between the actual liquid level height α and the liquid level height threshold δ. After adjusting the position, the output end of the control electric cylinder 311 adjusts the inner stirring paddle 21 to reciprocate between the position and the bottom surface of the flotation barrel 1.

[0057] The liquid level height threshold δ and the standard error γ are set by technicians according to the flotation tank 1 and the liquid in the flotation tank 1 .

[0058] The stirring outer arm 33 is suspended at the top end of the connecting arm 32 , the stirring inner arm 34 is engaged with the inner cavity of the stirring outer arm 33 , and the bottom arm 35 is engaged with the bottom of the stirring outer arm 33 .

[0059] Various inner and outer grooves for engagement are provided on the surfaces of the connecting arm 32, the stirring outer arm 33 and the stirring inner arm 34, the purpose of which is to connect the connecting arm 32, the stirring outer arm 33 and the stirring inner arm 34 as a whole, and at the same time, the connecting arm 32, the stirring outer arm 33 and the stirring inner arm 34 are arranged to be rotatably connected.

[0060] An annular cavity is provided inside the stirring outer arm 33, and the annular cavity penetrates the side wall of the stirring outer arm 33 to form an opening; an annular gear 341 is provided at the end of the annular cavity of the stirring inner arm 34, and the end of the stirring inner arm 34 penetrates the bottom end of the stirring outer arm 33, and the inner stirring paddle 21 is inserted into the end of the stirring inner arm 34. When the annular gear 341 is driven to rotate by an external force, the inner stirring paddle 21 located at the end of the stirring inner arm 34 is driven to rotate at a high speed to generate strong turbulence, so that the mineral particles in the slurry in the flotation barrel 1 are fully mixed with the flotation reagent.

[0061] The bottom arm 35 includes a cartridge 351 matched with the bottom end of the stirring outer arm 33, a circular ring gear 352 welded to the top of the cartridge 351, and an annular frame 353 welded to the bottom of the cartridge 351. The outer stirring paddle 22 is inserted into the inside of the annular frame 353. When the circular ring gear 352 is driven to rotate by external force, the outer stirring paddle 22 located on the annular frame 353 is driven to rotate at a lower speed, forming a stable circulation to prevent the merging and escape of bubbles.

[0062] There are multiple inner stirring paddles 21 and outer stirring paddles 22 . The multiple inner stirring paddles 21 are fixed to the outer circumference of the stirring inner arm 34 at equal intervals, and the multiple outer stirring paddles 22 are fixed to the outer circumference of the bottom arm 35 at equal intervals.

[0063] The inner stirring blade 21 rotates at a relatively high speed, which can produce a relatively strong turbulent effect. This strong turbulence helps the mineral particles in the slurry to contact and mix more fully with the flotation reagent, thereby increasing the amount of reagent adsorbed on the surface of the mineral particles. The good combination of the mineral particles and the reagent is beneficial to the subsequent flotation process, that is, the mineral particles are attached to the bubbles and brought to the surface of the flotation barrel 1, thereby improving the flotation efficiency.

[0064] The outer stirring paddle 22 rotates at a lower speed, and the flow generated is relatively gentle. This design helps to form a relatively stable circulation area. In this area, the bubbles that have attached to the mineral particles will not burst or re-settle due to severe disturbances. The stable circulation helps to maintain the integrity of the bubbles, avoid bubble merging and cause a reduction in effective load, and also prevent the bubbles that have floated up from escaping back into the slurry again.

[0065] The strong turbulence generated by the inner stirring blade 21 ensures the effective mixing of the mineral particles and the flotation reagent.

[0066] The stable annular flow formed by the outer stirring blades 22 helps to maintain the stability of the bubbles, reduces the chances of bubble merging and escaping, and thus improves the flotation efficiency.

[0067] The driving module 4 includes a driving unit 41, a driven unit 42 and a connecting unit 43. The driving unit 41 drives the driven unit 42 to rotate through the connecting unit 43. The driving unit 41 includes a speed regulating motor 411 and a rotating rod 412 fixed to the output shaft of the speed regulating motor 411. The driven unit 42 includes a driven rod 421, a driving gear 1 422 fixed to the bottom end of the driven rod 421, and a driving gear 2 423. The driving gear 1 422 and the driving gear 2 423 are similar in structure, both of which are composed of a circular frame and a plurality of racks welded to the outer peripheral surface of the circular frame, and the plurality of racks are distributed at equal intervals. The difference is that the racks in the driving gear 1 422 located on the circular frame There are far more racks than the racks on the circular frame in the driving gear 1 423. The purpose is to ensure that the rotation speed of the circular frame on the same rotating rod 412 is the same. If the ring gear 341 is driven to rotate by the driving gear 1 422, and the annular gear 352 is driven to rotate by the driving gear 2 423, it is required that the annular gear 341 is passively rotated at a high speed and the annular gear 352 is passively rotated at a low speed. That is, when the driving gear 1 422 and the driving gear 2 423 both rotate one circle, the number of circles of the driven ring gear 341 is much greater than the number of circles of the annular gear 352. The racks on the gear frame in the driving gear 1 422 need to be far more than the racks on the gear frame in the driving gear 2 423.

[0068] A group of connecting plates 44 are engaged on the surface of the driven rod 421 , and the driven rod 421 is engaged with the side wall of the connecting arm 32 through the connecting plates 44 . The rod body of the driven rod 421 located at the upper end of the connecting plates 44 is configured as a telescopic rod.

[0069] Among them, when the driven rod 421 is engaged with the side wall of the connecting arm 32 through the connecting plate 44, in order to ensure that the positions of the driven rod 421 and the connecting arm 32, the stirring inner arm 34 and the stirring outer arm 33 are relatively stationary, the relative positions of the driving gear 1 422 to the ring gear 341 and the driving gear 2 423 to the circular ring gear 352 can be ensured to be stationary. The connecting arm 32 drives the driven rod 421 to perform telescopic movement through the connecting plate 44. When the output end of the electric cylinder 311 descends, the driven rod 421 extends, and when the output end of the electric cylinder 311 descends, the driven rod 421 extends and shortens.

[0070] The connecting unit 43 includes two sets of belt rollers 431 fixed at the top of the driven rod 421 and the rotating rod 412, and a plurality of driving belts 432 are fixedly displayed on the surface of the two sets of belt rollers 431. The two sets of belt rollers 431 operate synchronously through the driving belts 432, and a plurality of annular grooves 433 compatible with the driving belts 432 are opened on the surface of the two sets of belt rollers 431.

[0071] Among them, the speed regulating motor 411 drives the driven rod 421 to rotate, and the belt roller 431 fixed at the top of the driven rod 421 rotates synchronously, and the driving belt 432 drives the rotating rod 412 and the belt roller 431 fixed at the top of the rotating rod 412 to rotate, that is, the driving gear 1 422 and the driving gear 2 423 fixed at the bottom of the driven rod 421 rotate.

[0072] The flotation barrel 1 is equipped with a weighing cylinder 5 and a reagent storage tank 6. The weighing cylinder 5 is provided with a pressure sensor for weighing. The outlet of the reagent storage tank 6 is provided with a metering pump 61 for accurately controlling the volume of reagent released from the reagent storage tank 6.

[0073] A heating film for heating the slurry in the flotation barrel 1 is provided at the bottom of the flotation barrel 1, and a temperature sensing element for measuring the temperature of the slurry and a density sensing element for measuring the concentration of the slurry are attached to the inner wall of the flotation barrel 1 and the surface of the connecting arm 32 to monitor the solubility of the flotation reagent.

[0074] A support module 8 is also provided on the flotation barrel 1, and the support module 8 includes a support arc plate 81 for supporting the driving unit 41, a rotating assembly 82 for driving the weighing cylinder 5 to rotate, a support bar 83 for supporting the driven unit 42 and the stirring module, and a grafting plate 84 for supporting the reagent storage tank 6.

[0075] The supporting arc plate 81 is welded to the side of the flotation barrel 1 away from the weighing cylinder 5 and is used to support the speed regulating motor 411;

[0076] The rotating assembly 82 includes a plurality of bonding plates 821 located on the surface of the weighing cylinder 5 and the flotation barrel 1. The surfaces of the plurality of bonding plates 821 are rotatably mounted with flip bars 822, and a horizontal bar 823 for supporting the flip bar 822 is provided at the bottom end of the bonding plate 821. The horizontal bar 823 is fixed on the bonding plate 821. After the weighing cylinder 5 weighs the ore sand in the cylinder, the weighing cylinder 5 is manually lifted and flipped to pour the ore sand in the weighing cylinder 5 into the flotation barrel 1.

[0077] The support bar 83 includes a bar body 831 and a positioning short rod 832 welded to the bottom end of the bar body 831. The positioning short rod 832 is inserted into the top of the flotation barrel 1 to achieve the positioning of the flotation barrel 1 by the support bar 83.

[0078] The grafting plate 84 includes a plate for supporting the medicine storage tank 6 and a plurality of positioning thin rods, the plurality of positioning thin rods are inserted into the strip body 831 to achieve the position positioning between the grafting plate 84 and the support strip 83, the grafting plate 84 supports the medicine storage tank 6, and the outlet of the medicine storage tank 6 passes through the plate body;

[0079] Reference Figure 3 As shown, in order to reduce the friction between the driven rod 421, the upper stirring arm 31 and the strip body 831, an arc groove is opened on the surface of the driven rod 421, and a rotating member 7 rolls in the arc groove. There are two groups of rotating members 7, one group of rotating members 7 supports the upper stirring arm 31, and the other group of rotating members 7 supports the driven rod 421. The rotating member 7 includes a ring 71, a plurality of equally spaced balls 72 embedded in the ring 71, and two groups of symmetrical side clamps 73 fixed to the surface of the ring 71. Two short rods 74 are fixed at the bottom end of the side clamps 73, and the two short rods 74 are inserted into the strip body 831 to achieve position positioning.

[0080] A quartz flotation device also includes a processor, the processor has a built-in control system, the pressure sensor converts the pressure of the ore sand into an electrical signal and transmits it to the control system, after receiving the electrical signal, the control system analyzes the electrical signal and obtains the actual weight of the ore sand, based on the weight of the ore sand, the control system calculates the amount of flotation reagent that needs to be added, and generates a control signal, based on the control signal, the metering pump 61 is controlled to finely control the amount of flotation reagent released from the reagent storage tank 6;

[0081] This calculation is based on a pre-set formula ratio to ensure that the reagent can fully react with the target mineral in the ore sand. This formula ratio is based on the existing ratio formed by professionals in this technology;

[0082] The density sensing element measures the dielectric parameters of the slurry to indirectly measure the density of the slurry, and converts the measured multiple sets of dielectric parameters into electrical signals and transmits them to the control system. After receiving the electrical signals, the control system analyzes and integrates the multiple sets of dielectric parameters to form an intermediate dielectric parameter, and compares the intermediate dielectric parameter with the density ratio in the formula. If it is less than the density ratio coefficient in the formula, an adjustment signal is formed, and the metering pump 61 is controlled based on the adjustment signal to finely control the amount of flotation reagent released from the reagent storage tank 6;

[0083] Based on the readjustment of the flotation reagent dosage, the density of the ore pulp is remeasured, and the measured multiple sets of dielectric parameters are converted into electrical signals and transmitted to the control system. After receiving the electrical signals, the control system analyzes and integrates the multiple sets of dielectric parameters to form an intermediate dielectric parameter. The intermediate dielectric parameter is compared with the density ratio in the formula. If it is greater than the density ratio coefficient in the formula, a compensation signal is formed. Based on the compensation signal, the metering pump 61 is controlled to increase the output shaft end speed of the speed regulating motor 411;

[0084] Based on the output shaft end speed of the speed regulating motor 411, the density of the slurry is remeasured, and the measured multiple sets of dielectric parameters are converted into electrical signals and transmitted to the control system. After receiving the electrical signals, the control system analyzes and integrates the multiple sets of dielectric parameters to form an intermediate dielectric parameter. Each set of dielectric parameters is compared with the intermediate dielectric parameter to form a dielectric error. If the dielectric errors are all within the standard error range, a recovery signal is generated. Based on the recovery signal, the metering pump 61 is controlled to reduce the output shaft end speed of the speed regulating motor 411 to the original speed.

[0085] Working principle and effect: A stirring module is provided inside the flotation barrel 1, and the stirring module includes multiple layers of stirring blades 2 and stirring arms 3. The stirring arm 3 drives the inner stirring blade 21 and the outer stirring blade 22 to rotate. The stirring depth is automatically adjusted according to the change of the slurry level to ensure the consistency of the stirring effect of the slurry in the flotation barrel 1, thereby improving the flotation efficiency of the flotation equipment.

[0086] The inner stirring paddle 21 and the outer stirring paddle 22 have different stirring speeds. The inner stirring paddle 21 generates strong turbulence by rotating at high speed, so that the mineral particles in the slurry in the flotation tank 1 are fully mixed with the flotation reagent; the outer stirring paddle 22 rotates at a lower speed to form a stable circulation to prevent the bubbles from merging and escaping.

[0087] The stirring arm 3 is provided with a multi-stage movable connection to drive the outer stirring paddle 22 and the inner stirring paddle 21 connected to different sections of the stirring arm 3 to obtain different speeds, and the stirring arm 3 is linked to achieve synchronous upward and downward movement to adjust the stirring depth;

[0088] At the same time, an electric cylinder 311 is provided inside, and the electric cylinder 311 drives the piston rod to realize the telescopic adjustment of the stirring arm 3, so as to realize the automatic adjustment of the stirring depth according to the change of the slurry level;

[0089] Among them, the device is provided with a telescopic control unit for monitoring and automatically controlling the telescopic adjustment of the stirring arm 3. The actual liquid level height α of the radar level gauge is monitored by the radar level gauge, and transmitted to the telescopic processing unit for comparison with the liquid level height threshold δ, standard error γ, and standard error γ interval (-γ, +γ) set in the telescopic processing unit. The motion trajectory and stroke of the piston rod of the electric cylinder 311 are automatically controlled by the liquid level difference ζ between the actual liquid level height α and the liquid level height threshold δ. The stirring of different slurry liquid quantities is achieved through automatic configuration, avoiding excessive rotation range of the inner stirring paddle 21 and the outer stirring paddle 22, which causes waste of resources.

[0090] In order to more accurately control the input of reagents and avoid waste of resources, the device is also provided with a processor and a control system for accurately controlling the input of reagents. The pressure of the ore sand is converted into an electrical signal and transmitted to the control system. After receiving the electrical signal, the control system analyzes the electrical signal and obtains the actual weight of the ore sand. Based on the weight of the ore sand, the control system calculates the amount of flotation reagent that needs to be added and generates a control signal. Based on the control signal, the metering pump 61 is controlled to finely control the amount of flotation reagent released from the reagent storage tank 6.

[0091] In addition, in order to prevent the situation that part of the reagents put in or released do not match the actual required reagents, or part of the reagents are not dissolved, or there are impurities in the reagents, etc., which causes the reagent concentration in the slurry to be lower than the actual required concentration due to the released reagents, the density of the slurry is indirectly measured by measuring the dielectric parameters of the slurry, and the measured multiple sets of dielectric parameters are converted into electrical signals and transmitted to the control system. After receiving the electrical signals, the control system analyzes and integrates the multiple sets of dielectric parameters to form an intermediate dielectric parameter, and compares the intermediate dielectric parameter with the density ratio in the formula. If it is less than the density ratio coefficient in the formula, an adjustment signal is formed, and the metering pump 61 is controlled based on the adjustment signal to finely control the amount of flotation reagents released from the reagent storage tank 6 to achieve compensatory addition of the reagents;

[0092] If the reagent added is sufficient, the density sensing element measures the dielectric parameters of the slurry to indirectly measure the density of the slurry, and converts the measured multiple sets of dielectric parameters into electrical signals and transmits them to the control system. After receiving the electrical signals, the control system analyzes and integrates the multiple sets of dielectric parameters to form an intermediate dielectric parameter, and compares the intermediate dielectric parameter with the density ratio in the formula. If it is greater than the density ratio coefficient in the formula, a compensation signal is formed. Based on the compensation signal, the metering pump 61 is controlled to increase the output shaft end speed of the speed regulating motor 411, and the speed regulating motor 411 drives the driven rod 421 to rotate, and the belt roller 431 fixed at the top of the driven rod 421 Synchronous rotation, the driving belt 432 drives the rotating rod 412 and the belt roller 431 fixed to the top of the rotating rod 412 to rotate, that is, the driving gear 1 422 and the driving gear 2 423 fixed to the bottom of the driven rod 421 rotate, the driving gear 1 422 drives the ring gear 341 to rotate at a high speed, and the driving gear 2 423 drives the ring gear 352 to rotate at a low speed, thereby driving the inner stirring paddle 21 to generate strong turbulence through high-speed rotation, so that the mineral particles in the slurry in the flotation barrel 1 are fully mixed with the flotation reagent, and the outer stirring paddle 22 rotates at a lower speed to form a stable circulation, prevent the bubble from merging and escaping, so as to improve the flotation efficiency;

[0093] At the same time, based on the output shaft end speed of the speed regulating motor 411, the density of the slurry is re-measured, and the measured multiple sets of dielectric parameters are converted into electrical signals and transmitted to the control system. After receiving the electrical signals, the control system analyzes and integrates the multiple sets of dielectric parameters to form an intermediate dielectric parameter, and compares each set of dielectric parameters with the intermediate dielectric parameter to form a dielectric error. If the dielectric errors are all within the standard error range, it indicates that the mineral particles in the slurry are fully mixed with the flotation reagent, and a recovery signal is generated. Based on the recovery signal, the metering pump 61 is controlled to reduce the output shaft end speed of the speed regulating motor 411 to the original speed;

[0094] The device realizes rapid and uniform mixing of flotation reagents by realizing reagent dosage compensation and reagent concentration monitoring, thereby improving flotation efficiency, saving the demand for flotation reagents and avoiding waste.

[0095] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A quartz flotation device, comprising a flotation bucket (1), characterized in that: A stirring module and a driving module (4) are provided inside the flotation barrel (1). The driving module (4) is used to drive the stirring module to rotate. The stirring module comprises a plurality of stirring blades (2) and a stirring arm (3). The plurality of stirring blades (2) comprises an inner stirring blade (21) and an outer stirring blade (22). The stirring arm (3) is driven by an external force to adjust the stirring depth of the inner stirring blade (21) and the outer stirring blade (22), and to make the inner stirring blade (21) and the outer stirring blade (22) rotate at different speeds. The inner stirring blade (21) generates strong turbulence by rotating at a high speed, so that the mineral particles in the slurry in the flotation barrel (1) are fully mixed with the flotation reagent. The outer stirring blade (22) rotates at a relatively low speed to form a stable circulation, thereby preventing the bubbles from merging and escaping. The stirring arm (3) comprises an upper stirring arm (31), a connecting arm (32), a stirring outer arm (33), a stirring inner arm (34) and a bottom arm (35); an electric cylinder (311) is arranged inside the upper stirring arm (31); the connecting arm (32) is fixed to the output end of the electric cylinder (311); the connecting arm (32) is driven to linearly displace via the output end of the electric cylinder (311); the stirring outer arm (33) is suspended from the top end of the connecting arm (32); the stirring inner arm (34) is engaged with the inner cavity of the stirring outer arm (33); and the bottom arm (35) is engaged with the bottom of the stirring outer arm (33); An annular cavity is provided inside the stirring outer arm (33), and the annular cavity penetrates the side wall of the stirring outer arm (33) to form an opening; the stirring inner arm (34) is provided with an annular gear (341) at the end of the annular cavity, the end of the stirring inner arm (34) penetrates the bottom end of the stirring outer arm (33), and the inner stirring paddle (21) is inserted into the end of the stirring inner arm (34); The bottom arm (35) comprises a cartridge (351) adapted to the bottom end of the stirring outer arm (33), a circular ring gear (352) welded to the top of the cartridge (351), and an annular frame (353) welded to the bottom of the cartridge (351), and the outer stirring paddle (22) is inserted into the interior of the annular frame (353); The number of the inner stirring paddles (21) and the number of the outer stirring paddles (22) are both multiple, and the multiple inner stirring paddles (21) are fixed to the outer peripheral surface of the stirring inner arm (34) in a circle with equal spacing, and the multiple outer stirring paddles (22) are fixed to the outer peripheral surface of the bottom arm (35) in a circle with equal spacing.

2. A quartz flotation device as claimed in claim 1, characterized in that: The driving module (4) comprises a driving unit (41), a driven unit (42) and a connecting unit (43); the driving unit (41) drives the driven unit (42) to rotate via the connecting unit (43); the driving unit (41) comprises a speed regulating motor (411) and a rotating rod (412) fixed to the shaft of the output end of the speed regulating motor (411); the driven unit (42) comprises a driven rod (421), a driving gear 1 (422) and a driving gear 2 (423) fixed to the bottom end of the driven rod (421); The connecting unit (43) comprises two groups of belt rollers (431) fixed to the top of the driven rod (421) and the rotating rod (412), and a plurality of driving belts (432) fixedly displayed on the surfaces of the two groups of belt rollers (431). The two groups of belt rollers (431) operate synchronously through the driving belts (432), and a plurality of annular grooves (433) adapted to the driving belts (432) are provided on the surfaces of the two groups of belt rollers (431).

3. A quartz flotation device as claimed in claim 2, characterized in that: A group of connecting plates (44) are engaged on the surface of the driven rod (421), and the driven rod (421) is engaged with the side wall of the connecting arm (32) via the connecting plates (44). The rod body of the driven rod (421) located at the upper end of the connecting plates (44) is arranged as a telescopic rod.

4. A quartz flotation device as claimed in claim 3, characterized in that: The driving gear 1 (422) comprises a gear frame and a plurality of racks welded to the outer circumference of the gear frame, wherein the plurality of racks are distributed at equal intervals.

5. A quartz flotation device as claimed in claim 4, characterized in that: The flotation barrel (1) is equipped with a weighing cylinder (5) and a medicine storage tank (6). The weighing cylinder (5) is provided with a pressure sensor for weighing. The outlet of the medicine storage tank (6) is provided with a metering pump (61) for controlling the volume of medicine discharged from the medicine storage tank (6).

6. A quartz flotation device as claimed in claim 5, characterized in that: A heating film for heating the ore pulp in the flotation barrel (1) is provided at the bottom end of the flotation barrel (1), and density sensing elements for measuring the concentration of the ore pulp are attached to the inner wall of the flotation barrel (1) and the surface of the connecting arm (32).

7. A quartz flotation device as claimed in claim 6, characterized in that: A support module (8) is also provided on the flotation barrel (1), and the support module (8) comprises a support arc plate (81) for supporting the driving unit (41), a rotating assembly (82) for driving the weighing cylinder (5) to rotate, a support bar (83) for supporting the driven unit (42) and the stirring module, and a grafting plate (84) for supporting the medicine storage tank (6).

Images