A sampling device for lithium ore flotation tailings recovery and a resource recovery method

Abstract

The application provides a sampling device for recovering lithium ore flotation tailings and a resource recovery method, relates to the technical field of recovery sampling, and comprises a mounting frame, a mobile sampling mechanism, an adjusting gear and an inerting protection mechanism. The mobile sampling mechanism comprises sliding rails, a mobile seat, a rotating seat and a sampling cup. The mobile seat is in sliding connection with the sliding rails. The rotating seat is fixed to the top of the mobile seat. A rotating shaft is in rotating connection with the inner side of the rotating seat. The front end of the rotating shaft is fixedly connected with the sampling cup. The rear end of the rotating shaft is fixedly connected with the adjusting gear. The nitrogen gas in the nitrogen cylinder is finally sprayed out through the hose and the nozzle, a nitrogen curtain is formed at the sampling end of the sampling cup, the amine substances in the foam are prevented from being oxidized by air, the sharp drop of the viscosity of the foam sample is avoided, the accuracy and representativeness of the foam viscosity detection data are improved, the use amount of the amine medicament is adjusted in a targeted manner, and the polluted water body is treated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of recovery sampling, and in particular to a sampling device for lithium ore flotation tailings recovery and a resource recovery method. BACKGROUND

[0002] After lithium-bearing pegmatite ore is subjected to flotation to extract lithium, the tailings still contain feldspar, quartz and cesium tourmaline and other valuable minerals. These minerals have high economic value, and further recovery through technical means can avoid resource waste and promote sustainable development.

[0003] During the recovery of lithium ore flotation tailings, amine is prone to produce foam over-stickiness during fine particle flotation. Foam over-stickiness can cause the loss of secondary enrichment, and target minerals and gangue cannot be layered according to density differences, resulting in low separation efficiency. At the same time, foam over-stickiness can cause the multiplication of residual reagents, the effect of fine mud entrapment and the generation of toxic degradation products, causing water pollution. Foam samples need to be taken for viscosity detection, and the use of amine reagents is adjusted according to the detection results, and the polluted water is treated accordingly.

[0004] In related technologies, during the recovery of lithium ore flotation tailings, amine collectors are used for flotation of fine particle minerals, which produces sticky foam that needs to be sampled for detection. However, existing part of the flotation foam sampling device is inconvenient for effective protection of the foam sample, and the foam sample contains amine substances that oxidize and deteriorate when exposed to air, causing a sharp decrease in foam viscosity and affecting the accuracy of the detection results.

[0005] Therefore, it is necessary to provide a sampling device for lithium ore flotation tailings recovery and a resource recovery method to solve the above technical problems. SUMMARY

[0006] The present application provides a sampling device for lithium ore flotation tailings recovery and a resource recovery method, which solves the technical problem of the existing part of the flotation foam sampling device in related technologies, which is inconvenient for effective protection of the foam sample, resulting in a sharp decrease in foam viscosity.

[0007] To solve the above technical problems, the sampling device for lithium ore flotation tailings recovery provided by the present application comprises a mounting frame, a mobile sampling mechanism, an adjusting gear and an inerting protection mechanism.

[0008] The mobile sampling mechanism comprises a sliding rail, a mobile seat, a rotating seat and a sampling cup, the mobile seat is in sliding connection with the sliding rail, the rotating seat is fixed on the top of the mobile seat, the inner side of the rotating seat is in rotating connection with a rotating shaft, the front end of the rotating shaft is fixedly connected with the sampling cup, the rear end of the rotating shaft is fixedly connected with the adjusting gear, the sampling cup is provided with a cutting edge, and the bottom of the mobile seat is fixedly provided with two push plates.

[0009] The inactivation protection mechanism comprises a nitrogen cylinder, a piston and a piston rod, the nitrogen cylinder is fixedly arranged on the inner side of the right side of the mounting rack, the piston and the piston rod are in sliding connection with the inner side of the nitrogen cylinder, the right end of the piston rod is fixedly connected with the piston, the surface of the piston rod is sleeved with a spring, the left end of the piston rod is fixedly provided with a contact plate, the top of the sampling cup is fixedly provided with a connecting plate, and the inner side of the connecting plate is provided with two spray heads.

[0010] Preferably, the inner side of the mounting rack is fixedly provided with a horizontal plate, the bottom of the sliding rail is fixedly connected with the top of the horizontal plate, the inner side of the mobile seat is provided with a ball screw, the two ends of the ball screw are in rotating connection with the inner side of the mounting rack, and the left side of the mounting rack is provided with a driving motor for driving the ball screw to rotate.

[0011] Preferably, the right side of the nitrogen cylinder is communicated with an air inlet pipe and a hose, the surfaces of the air inlet pipe and the hose are provided with one-way valves, and the nitrogen cylinder is communicated with the two spray heads through the hose.

[0012] Preferably, the right side of the mounting rack is fixedly provided with a detection mechanism, the detection mechanism comprises a detection rack fixedly arranged on the right side of the mounting rack, the inner side of the detection rack is in sliding connection with a connecting rack, the front side of the connecting rack is fixedly provided with a rotary viscometer, the inner side of the detection rack is provided with an electric telescopic rod, the top end of the electric telescopic rod is fixedly connected with the connecting rack, and the rear side of the connecting rack is fixedly provided with an adjusting tooth plate.

[0013] Preferably, the inner side of the top of the detection rack is provided with a visual sensor for analyzing the size distribution of bubbles, and when the adjusting tooth plate continuously moves downward and is in contact with the adjusting gear, the sampling cup is driven to rotate counterclockwise by the rotating shaft.

[0014] Preferably, the bottom of the right side of the mounting rack is provided with a simple judgment mechanism, the simple judgment mechanism comprises a mounting seat fixedly arranged on the right side of the bottom of the mounting rack, the inner side of the mounting seat is in rotating connection with a rotating rod, the surface of the rotating rod is fixedly provided with a driven gear, the front end of the rotating rod is fixedly provided with a glass plate, the right side of the contact plate is fixedly provided with a driving tooth plate, and the back of the mounting rack is fixedly provided with a turnover tooth plate.

[0015] Preferably, the inner side of the right side of the mounting frame is fixed with a cleaning mechanism, the cleaning mechanism comprises a plurality of connecting supports fixed to the inner side of the right side of the mounting frame, and the inner side of the plurality of connecting supports is provided with a water pipe, and the surface of the water pipe is communicated with a plurality of cleaning nozzles.

[0016] Preferably, the bottom of the mounting frame is fixed with two supports, and the inner side of each of the two supports is threadedly connected with two screw rods, and the opposite ends of the four screw rods are provided with mounting pads.

[0017] A lithium ore flotation tailings resource recovery method, comprising the following steps:

[0018] Step S1, tailings pretreatment:

[0019] The lithium-bearing pegmatite tailings are crushed and ground to make the mineral particle size reach more than 60-90% of -200 mesh;

[0020] Step S2, multi-stage classification:

[0021] The pulp is classified by a hydrocyclone or a screening device to separate minerals of different particle sizes, and coarse and fine particle size minerals are preliminarily separated according to the particle size difference of feldspar, quartz and cesium tourmaline;

[0022] Step S3, magnetic separation:

[0023] The coarse particle size minerals are subjected to weak magnetic separation to remove iron-containing impurities, and the fine particle size minerals are subjected to strong magnetic separation to separate cesium tourmaline;

[0024] Step S4, flotation separation:

[0025] The coarse particle size minerals after magnetic separation are subjected to flotation, and an acid medium and a specific collector such as a fatty acid are used to preferentially float feldspar, and the fine particle size minerals after magnetic separation are subjected to flotation, and an alkaline medium and a specific collector such as an amine are used to preferentially float quartz, and in the flotation process, the foam is sampled and the viscosity is detected by a sampling mechanism;

[0026] Step S5, concentrate dewatering and drying:

[0027] The feldspar, quartz and cesium tourmaline concentrates obtained by flotation are respectively dewatered and dried to obtain the final product.

[0028] Compared with the related art, the sampling device for lithium ore flotation tailings recovery and the resource recovery method provided by the present application have the following beneficial effects:

[0029] After sampling the flotation foam by moving the rotating seat and sampling cup with the moving seat, when the moving seat continues to move to the right, the push plate will contact the contact plate and push the piston rod and piston to the right in the nitrogen cylinder. The nitrogen in the nitrogen cylinder will be sprayed out through the hose and nozzle, forming a nitrogen curtain at the sampling end of the sampling cup. This prevents the air from oxidizing amines in the foam, thereby avoiding a sharp drop in the viscosity of the foam sample. This improves the accuracy and representativeness of the foam viscosity detection data, and makes it easier to adjust the dosage of amine reagents and treat polluted water.

[0030] After sampling the foam using a sampling cup, the sampling cup is adjusted to the bottom of the rotational viscometer by rotating a ball screw. When the electric telescopic rod moves the connecting frame, rotational viscometer, and adjusting gear plate downwards, the adjusting gear plate contacts the adjusting gear, which in turn rotates the sampling cup 90 degrees counterclockwise through the rotating shaft, so that the sampling end of the sampling cup faces upwards. The electric telescopic rod continues to retract, allowing the detection end of the rotational viscometer to be inserted into the sampling cup, thus enabling timely viscosity testing of the foam in the sampling cup and preventing the foam sample from losing its accuracy due to prolonged storage. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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 the structures shown in these drawings without creative effort.

[0032] Figure 1 The optimal structural schematic diagram provided for this invention;

[0033] Figure 2 This is a structural schematic diagram of the rear view of the mounting bracket provided by the present invention;

[0034] Figure 3 A schematic diagram of the structure of the mobile sampling mechanism and the inerting protection mechanism provided by the present invention;

[0035] Figure 4 for Figure 3 The enlarged structural diagram at point A is shown below;

[0036] Figure 5 for Figure 4 The diagram shows the structure of the sampling cup;

[0037] Figure 6 This is a schematic diagram of the cross-sectional view of the nitrogen cylinder provided by the present invention;

[0038] Figure 7The state diagram of the mobile seat moving to the right and the push plate pressing the contact plate to the right is provided for the application;

[0039] Figure 8 The structure diagram of the detection mechanism is provided for the application;

[0040] Figure 9 The state diagram of the adjusting tooth plate moving downward and the adjusting tooth gear rotating the sampling cup counterclockwise by 90 degrees through the rotating shaft is provided for the application;

[0041] Figure 10 The structure diagram of the simple judgment mechanism and the cleaning mechanism is provided for the application;

[0042] Figure 11 The structure diagram of the installation frame rear view is provided for the application; Figure 10 The enlarged structure diagram of B shown in the figure is provided for the application;

[0043] Figure 12 The structure diagram of the installation frame rear view is provided for the application; Figure 10 The enlarged structure diagram of B shown in the figure is provided for the application;

[0044] Figure 13 The state diagram of the adjusting tooth gear contacting the turnover tooth plate and rotating the sampling cup clockwise through the rotating shaft is provided for the application;

[0045] Figure 14 The structure diagram of the installation frame rear view is provided for the application; Figure 13 The enlarged structure diagram of B shown in the figure is provided for the application;

[0046] Figure 15 The state diagram of the driving tooth plate contacting the driven tooth gear and rotating the glass plate clockwise by 45 degrees through the rotating rod is provided for the application;

[0047] Figure 16 The resource recycling method diagram is provided for the application.

[0048] Explanation of figure mark:

[0049] 1, installation frame;

[0050] 2, mobile sampling mechanism; 21, sliding rail; 22, mobile seat; 23, rotating seat; 24, sampling cup; 25, rotating shaft; 26, push plate; 27, horizontal plate; 28, ball screw; 29, driving motor;

[0051] 3, adjusting tooth gear;

[0052] 4, inert protection mechanism; 41, nitrogen cylinder; 42, piston; 43, piston rod; 44, spring; 45, contact plate; 46, connecting plate; 47, nozzle;

[0053] 5, detection mechanism; 51, detection frame; 52, connecting frame; 53, rotary viscometer; 54, electric telescopic rod; 55, adjusting tooth plate;

[0054] 6, simple determination mechanism; 61, mounting seat; 62, rotating rod; 63, driven gear; 64, glass plate; 65, driving tooth plate; 66, turnover tooth plate;

[0055] 7, cleaning mechanism; 71, connecting support; 72, water pipe; 73, cleaning nozzle;

[0056] 8, support; 9, screw rod; 10, mounting pad.

[0057] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0059] The present application provides a sampling device for lithium ore flotation tailings recovery and a resource recovery method.

[0060] First embodiment:

[0061] Please refer to Figures 1 to 7 A sampling device for lithium ore flotation tailings recovery, comprising a mounting frame 1, a mobile sampling mechanism 2, an adjusting gear 3 and an inert protection mechanism 4.

[0062] The mobile sampling mechanism 2 comprises a sliding rail 21, a mobile seat 22, a rotating seat 23 and a sampling cup 24. The mobile seat 22 is in sliding connection with the sliding rail 21. The rotating seat 23 is fixedly arranged on the top of the mobile seat 22. A rotating shaft 25 is rotatably connected to the inner side of the rotating seat 23. The front end of the rotating shaft 25 is fixedly connected with the sampling cup 24. The rear end of the rotating shaft 25 is fixedly connected with the adjusting gear 3. The sampling cup 24 is provided with a cutting edge. Two push plates 26 are fixedly arranged on the bottom of the mobile seat 22.

[0063] A horizontal plate 27 is fixedly arranged on the inner side of the mounting frame 1. The bottom of the sliding rail 21 is fixedly connected with the top of the horizontal plate 27. A ball screw 28 is arranged on the inner side of the mobile seat 22. The two ends of the ball screw 28 are rotatably connected with the inner side of the mounting frame 1. A driving motor 29 is arranged on the left side of the mounting frame 1 for driving the rotation of the ball screw 28.

[0064] Please combine Figure 3 : start the drive motor 29, the drive motor 29 rotates to drive the ball screw 28 to rotate, the ball screw 28 rotates and drives the moving seat 22 to move right on the surface of the slide rail 21, the moving seat 22 drives the rotating seat 23 and the sampling cup 24 to move right, the sampling cup 24 moves right to sample the foam, the sampling end of the sampling cup 24 has a cutting edge, which can instantly cut the foam to avoid foam collapse;

[0065] The inert protection mechanism 4 includes a nitrogen cylinder 41, a piston 42 and a piston rod 43, the nitrogen cylinder 41 is fixedly arranged on the inner side of the right side of the mounting frame 1, the piston 42 and the piston rod 43 are in sliding connection with the inner side of the nitrogen cylinder 41, the right end of the piston rod 43 is fixedly connected with the piston 42, the surface of the piston rod 43 is sleeved with a spring 44, the left end of the piston rod 43 is fixedly provided with a contact plate 45, the top of the sampling cup 24 is fixedly provided with a connecting plate 46, and the inner side of the connecting plate 46 is provided with two spray heads 47;

[0066] Please combine Figure 6 and Figure 7 : when the sampling cup 24 moves right to sample the foam, the ball screw 28 continues to rotate, which drives the moving seat 22 and the push plate 26 to continuously move right, when the push plate 26 contacts with the contact plate 45, the contact plate 45 pushes the piston rod 43 right, so that the spring 44 is contracted, the piston rod 43 moves right to drive the piston 42 to move right in the nitrogen cylinder 41, so that the nitrogen in the nitrogen cylinder 41 is delivered to the spray head 47 through the hose, the spray head 47 sprays nitrogen, forming a nitrogen curtain to protect the sampling end of the sampling cup 24, avoiding oxidation of amine substances in the foam sample;

[0067] Further, when the ball screw 28 continues to rotate to drive the moving seat 22, the sampling cup 24 and the push plate 26 to move left, the push plate 26 and the contact plate 45 cancel the contact, the expansion of the spring 44 drives the contact plate 45 to move left, the contact plate 45 drives the piston 42 to slide left in the nitrogen cylinder 41 through the piston rod 43, so as to extract nitrogen through the pipeline;

[0068] The right side of the nitrogen cylinder 41 is communicated with an air inlet pipe and a hose, the surfaces of the air inlet pipe and the hose are provided with one-way valves, and the nitrogen cylinder 41 is communicated with the two spray heads 47 through the hose.

[0069] In this embodiment, unlike the existing flotation froth sampling device, when the mobile seat 22 continues to move to the right after moving the rotating seat 23 and the sampling cup 24 to sample the flotation froth, the push plate 26 will come into contact with the contact plate 45, and the piston rod 43 and the piston 42 will be pushed to the right in the nitrogen cylinder 41, the nitrogen in the nitrogen cylinder 41 will be sprayed out through the hose and the nozzle 47, a nitrogen curtain will be formed at the sampling end of the sampling cup 24, preventing air from oxidizing the amine substances in the froth, thereby avoiding the rapid decrease of the viscosity of the froth sample, and further improving the accuracy and representativeness of the froth viscosity detection data, facilitating the targeted adjustment of the amount of amine reagent and the treatment of contaminated water bodies.

[0070] Second embodiment:

[0071] Please refer to Figure 3 , Figure 8 and Figure 9 , the right side of the mounting bracket 1 is fixedly provided with a detection mechanism 5, the detection mechanism 5 includes a detection frame 51 fixedly provided on the right side of the mounting bracket 1, a connecting frame 52 is slidably connected to the inner side of the detection frame 51, a rotary viscometer 53 is fixedly provided on the front side of the connecting frame 52, an electric telescopic rod 54 is arranged on the inner side of the detection frame 51, the top end of the electric telescopic rod 54 is fixedly connected with the connecting frame 52, and an adjusting tooth plate 55 is fixedly provided on the rear side of the connecting frame 52.

[0072] Please refer to Figure 8 and Figure 9 : when the sampling cup 24 completes sampling and moves to the bottom of the rotary viscometer 53, the electric telescopic rod 54 is started, the electric telescopic rod 54 is retracted downward to drive the connecting frame 52 to slide downward on the inner side of the detection frame 51, the detection frame 51 moves downward to drive the adjusting tooth plate 55 to move downward, when the adjusting tooth plate 55 comes into contact with the adjusting gear 3, the adjusting tooth plate 55 drives the adjusting gear 3 to rotate counterclockwise, the adjusting gear 3 drives the sampling cup 24 to rotate counterclockwise by 90 degrees through the rotating shaft 25, so that the sampling end of the sampling cup 24 faces upward, the electric telescopic rod 54 is continuously retracted, and the detection end of the rotary viscometer 53 is inserted into the sampling cup 24, and the viscosity of the froth in the sampling cup 24 is detected by the rotary viscometer 53.

[0073] Further, when the rotary viscometer 53 completes the viscosity detection of the froth in the sampling cup 24, the electric telescopic rod 54 is controlled to extend, the electric telescopic rod 54 drives the connecting frame 52 and the rotary viscometer 53 to move upward, so that the detection end of the rotary viscometer 53 is separated from the sampling cup 24, the electric telescopic rod 54 is continuously extended upward, the adjusting tooth plate 55 drives the adjusting gear 3 to rotate clockwise, and the sampling cup 24 is reset.

[0074] The inner side of the top of the detection frame 51 is provided with a visual sensor for analyzing the bubble size distribution. When the adjusting tooth plate 55 continuously moves downward and contacts the adjusting gear 3, the sampling cup 24 is driven to rotate counterclockwise by the rotating shaft 25.

[0075] Preferably, the bubble size distribution is analyzed by the visual sensor, combined with the online sensor of the medicament concentration and the ore pulp density, the viscosity prediction can be realized by AI, and the dynamic viscosity value of the foam is output.

[0076] In this embodiment, after the sampling cup 24 completes sampling of the foam, the sampling cup 24 is adjusted to the bottom of the rotational viscometer 53 by rotating the ball screw 28. When the electric telescopic rod 54 drives the connecting frame 52, the rotational viscometer 53 and the adjusting tooth plate 55 to move downward, the adjusting tooth plate 55 contacts the adjusting gear 3, which drives the sampling cup 24 to rotate counterclockwise by 90 degrees through the rotating shaft 25, so that the sampling end of the sampling cup 24 faces upward. The detection end of the rotational viscometer 53 is inserted into the sampling cup 24 by continuously retracting the electric telescopic rod 54, so as to timely detect the viscosity of the foam in the sampling cup 24, avoiding the loss of authenticity of the detection data caused by the long placement time of the foam sample.

[0077] Third embodiment:

[0078] Please refer to Figures 10 to 15 , the bottom of the right side of the mounting frame 1 is provided with a simple judgment mechanism 6, the simple judgment mechanism 6 includes a mounting seat 61 fixedly arranged on the bottom of the right side of the mounting frame 1, a rotating rod 62 rotatably connected to the inner side of the mounting seat 61, a passive gear 63 fixedly arranged on the surface of the rotating rod 62, a glass plate 64 fixedly arranged on the front end of the rotating rod 62, a driving tooth plate 65 fixedly arranged on the right side of the contact plate 45, and a flip tooth plate 66 fixedly arranged on the back of the mounting frame 1.

[0079] Please refer to Figure 13 and Figure 15 : when the sampling cup 24 completes sampling, the ball screw 28 continuously rotates to drive the sampling cup 24 to move rightward, the adjusting gear 3 contacts the flip tooth plate 66, which drives the sampling cup 24 to rotate clockwise through the rotating shaft 25, and the foam in the sampling cup 24 is poured on the glass plate 64. The ball screw 28 continues to rotate to drive the moving seat 22 to move rightward, the moving seat 22 drives the contact plate 45 and the driving tooth plate 65 to move rightward through the push plate 26, the driving tooth plate 65 contacts the passive gear 63, which drives the rotating rod 62 and the glass plate 64 to rotate by 45 degrees through the passive gear 63. At this time, the flow state of the foam on the glass plate 64 is observed. When the foam covers the glass plate 64 within three seconds, the viscosity of the foam is normal. When the foam flows for more than ten seconds and remains in a raised state, the foam is too viscous.

[0080] Further, when the ball screw 28 rotates to drive the sampling cup 24 to move left, the moving seat 22 and the push plate 26 move left to cancel the extrusion on the contact plate 45, the contact plate 45 drives the driving gear plate 65 to move left under the action of the spring 44, so that the driven gear 63 drives the glass plate 64 to rotate counterclockwise through the rotating rod 62, the glass plate 64 is reset, and after the adjusting gear 3 contacts with the turnover gear plate 66, the sampling cup 24 is reset through the rotating shaft 25.

[0081] The inner side of the right side of the mounting frame 1 is fixedly provided with a cleaning mechanism 7, the cleaning mechanism 7 comprises a plurality of connecting supports 71 fixedly arranged on the inner side of the right side of the mounting frame 1, the inner side of the connecting support 71 is provided with a water pipe 72, and the surface of the water pipe 72 is communicated with a plurality of cleaning nozzles 73.

[0082] Please combine Figure 15 When the glass plate 64 is used to detect the viscosity of the foam, the sampling cup 24 and the glass plate 64 are in an inclined state, the cleaning liquid is sprayed to the sampling cup 24 and the glass plate 64 through the water pipe 72 and the cleaning nozzle 73, and then the sampling cup 24 and the glass plate 64 are cleaned, the cleaning liquid after cleaning flows away along the inclined direction of the sampling cup 24 and the glass plate 64, so that the sampling cup 24 and the glass plate 64 can be quickly dried, so as to be ready for the next sampling.

[0083] The bottom of the mounting frame 1 is fixedly provided with two supports 8, the inner side of the support 8 is screw-connected with two screw rods 9, and the opposite end of the screw rod 9 is provided with a mounting pad 10.

[0084] Preferably, the two supports 8 are placed outside the flotation tank, the mounting frame 1 is mounted by rotating the plurality of screw rods 9 and using the mounting pad 10.

[0085] In the embodiment, when the sampling cup 24 completes sampling and continues to move right, the adjusting gear 3 contacts with the turnover gear plate 66, and the sampling cup 24 is rotated clockwise through the rotating shaft 25, the foam in the sampling cup 24 is poured on the glass plate 64, when the moving seat 22 and the sampling cup 24 continue to move right, the driving gear plate 65 contacts with the driven gear 63, and the glass plate 64 is rotated clockwise by 45 degrees through the rotating rod 62, when the foam covers the glass plate 64 within three seconds, the viscosity of the foam is normal, when the foam flows for more than ten seconds and maintains a raised state, the foam is too viscous, so that the staff can more quickly and intuitively judge the viscosity of the foam.

[0086] Fourth embodiment:

[0087] Please refer to Figure 16 A lithium ore flotation tailings resource recovery method, comprising the following steps:

[0088] Step S1, tailings pretreatment:

[0089] The lithium-bearing pegmatite tailings are crushed and ground to make the mineral particle size reach more than 60-90% of -200 mesh;

[0090] Step S2, multi-stage classification:

[0091] The slurry is classified by a hydrocyclone or a screening device to separate minerals of different particle sizes, and the coarse and fine particle size minerals are preliminarily separated according to the particle size difference of feldspar, quartz and cesium tourmaline;

[0092] Preferably, the coarse particle size mineral is mainly feldspar, and the fine particle size mineral is mainly quartz and cesium tourmaline;

[0093] Step S3, magnetic separation:

[0094] The coarse particle size mineral is subjected to weak magnetic separation to remove iron-containing impurities, and the fine particle size mineral is subjected to strong magnetic separation to separate cesium tourmaline;

[0095] Preferably, the cesium tourmaline has weak magnetism, and can be separated by strong magnetic separation;

[0096] Step S4, flotation separation:

[0097] The coarse particle size mineral after magnetic separation is subjected to flotation, and an acid medium and a specific collector such as a fatty acid are used to preferentially float feldspar, and the fine particle size mineral after magnetic separation is subjected to flotation, and an alkali medium and a specific collector such as an amine are used to preferentially float quartz, and in the flotation process, the sampling mechanism is used to sample and detect the viscosity of the flotation froth;

[0098] Step S5, concentrate dewatering and drying:

[0099] The feldspar, quartz and cesium tourmaline concentrates obtained by flotation are respectively dewatered and dried to obtain the final product.

[0100] In this embodiment, the efficient separation of feldspar, quartz and cesium tourmaline is realized by combining multi-stage classification, magnetic separation and flotation, the resource utilization rate is improved, the current sustainable development route is met, the process flow is simple, the cost is low, it is suitable for industrial production, and the separated feldspar, quartz and cesium tourmaline have high purity and can be directly used in the ceramic, glass and electronic industries.

[0101] Please refer to Figures 1 to 16 The working principle of the sampling device for recovering lithium ore flotation tailings provided by the application is as follows:

[0102] Step S1, place two supports 8 on the outside of the flotation tank, install the mounting frame 1 by rotating the plurality of screw rods 9 using the mounting pad 10, then start the drive motor 29, the drive motor 29 rotates to drive the ball screw 28 to rotate, the ball screw 28 rotates to drive the moving seat 22 to move right on the surface of the sliding rail 21, the moving seat 22 drives the rotating seat 23 and the sampling cup 24 to move right, the sampling end of the sampling cup 24 is provided with a cutting edge, and the foam is instantaneously intercepted by moving;

[0103] Step S2, after the sampling cup 24 moves right to sample the foam, the ball screw 28 continues to rotate to drive the moving seat 22 and the push plate 26 to continue to move right, when the push plate 26 contacts the contact plate 45, the contact plate 45 pushes the piston rod 43 right to make the spring 44 contract, the piston rod 43 moves right to drive the piston 42 to move right in the nitrogen cylinder 41, the nitrogen in the nitrogen cylinder 41 is delivered to the spray head 47 through the hose, the spray head 47 sprays nitrogen out to form a nitrogen curtain to protect the sampling end of the sampling cup 24, avoiding oxidation of amine substances in the foam sample;

[0104] Step S3, please combine step S2, when the sampling cup 24 moves to the bottom of the rotary viscometer 53, start the electric telescopic rod 54, the electric telescopic rod 54 retracts downward to drive the connecting frame 52 and the adjusting tooth plate 55 to move downward, when the adjusting tooth plate 55 contacts the adjusting gear 3, the adjusting tooth plate 55 drives the adjusting gear 3 to rotate counterclockwise, and then the sampling cup 24 is rotated counterclockwise by 90 degrees through the rotating shaft 25, so that the sampling end of the sampling cup 24 faces upward, the detection end of the rotary viscometer 53 is inserted into the sampling cup 24 by continuously retracting the electric telescopic rod 54, and the viscosity of the foam in the sampling cup 24 is detected by the rotary viscometer 53;

[0105] Step S4, please combine step S2, when the sampling cup 24 continues to move right after sampling, the adjusting gear 3 contacts the turnover tooth plate 66, the adjusting gear 3 drives the sampling cup 24 to rotate clockwise through the rotating shaft 25, the foam in the sampling cup 24 is poured on the glass plate 64, the moving seat 22 continues to move right through the continuous rotation of the ball screw 28, the moving seat 22 drives the contact plate 45 and the driving tooth plate 65 to move right through the push plate 26, the driving tooth plate 65 contacts the driven gear 63, the driven gear 63 drives the rotating rod 62 and the glass plate 64 to rotate by 45 degrees, at this time, the flow state of the foam on the glass plate 64 is observed, when the foam covers the glass plate 64 within three seconds, the viscosity of the foam is normal, when the foam flows for more than ten seconds and maintains a raised state, the foam is too viscous;

[0106] Step S5, please combine step S4, when the glass plate 64 is used to detect the viscosity of the foam, the sampling cup 24 and the glass plate 64 are in an inclined state, the cleaning liquid is sprayed to the sampling cup 24 and the glass plate 64 through the water pipe 72 and the cleaning nozzle 73, and the sampling cup 24 and the glass plate 64 are cleaned. The cleaning liquid after cleaning flows along the inclined direction of the sampling cup 24 and the glass plate 64, so that the sampling cup 24 and the glass plate 64 can be quickly dried.

[0107] The above description is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made under the concept of the present application, using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A sampling device for lithium ore flotation tailings recovery, characterized by, The installation frame, the mobile sampling mechanism, the adjusting gear and the inert protection mechanism are included. The mobile sampling mechanism includes a sliding rail, a mobile seat, a rotating seat and a sampling cup. The inert protection mechanism includes a nitrogen cylinder, a piston and a piston rod. The inside of the installation frame is fixed with a horizontal plate, the bottom of the sliding rail is fixedly connected with the top of the horizontal plate, the inside of the mobile seat is provided with a ball screw, and the two ends of the ball screw are rotationally connected with the inside of the installation frame. The right side of the nitrogen cylinder is communicated with an air inlet pipe and a hose, and the surfaces of the air inlet pipe and the hose are provided with one-way valves. The driving motor is started, the driving motor drives the ball screw to rotate, the ball screw rotates to drive the mobile seat to move right on the surface of the sliding rail, the mobile seat drives the rotating seat and the sampling cup to move right, and the sampling cup moves right to sample the foam. When the sampling cup moves right to sample the foam, the ball screw continues to rotate to drive the mobile seat and the push plate to continuously move right, the push plate contacts the contact plate to drive the piston rod to move right, the spring is contracted, the piston rod moves right to drive the piston to move right in the nitrogen cylinder, and the nitrogen in the nitrogen cylinder is delivered to the spray head through the hose.

2. The sampling device for lithium ore flotation tailings recovery according to claim 1, characterized in that, The right side of the installation frame is fixed with a detection mechanism, the detection mechanism includes a detection frame fixed on the right side of the installation frame, the inside of the detection frame is slidably connected with a connecting frame, the front side of the connecting frame is fixedly provided with a rotary viscometer, the inside of the detection frame is provided with an electric telescopic rod, the top end of the electric telescopic rod is fixedly connected with the connecting frame, and the rear side of the connecting frame is fixedly provided with an adjusting tooth plate.

3. The sampling device for lithium ore flotation tailings recovery according to claim 2, characterized in that, The inside of the top of the detection frame is provided with a visual sensor for analyzing the size distribution of bubbles, and when the adjusting tooth plate continuously moves downward and contacts the adjusting gear, the sampling cup is driven to rotate counterclockwise by the rotating shaft.

4. The sampling device for lithium ore flotation tailings recovery according to claim 1, characterized in that, The bottom of the right side of the installation frame is provided with a simple judgment mechanism, the simple judgment mechanism includes a mounting seat fixed on the right side of the bottom of the installation frame, the inside of the mounting seat is rotationally connected with a rotating rod, the surface of the rotating rod is fixedly provided with a driven gear, the front end of the rotating rod is fixedly provided with a glass plate, the right side of the contact plate is fixedly provided with a driving tooth plate, and the back of the installation frame is fixedly provided with a turnover tooth plate.

5. The sampling device for lithium ore flotation tailings recovery according to claim 1, characterized in that, The inner side of the right side of the mounting frame is fixedly provided with a cleaning mechanism, the cleaning mechanism comprises a plurality of connecting supports fixedly provided on the inner side of the right side of the mounting frame, the inner side of the connecting supports is provided with a water pipe, and the surface of the water pipe is communicated with a plurality of cleaning nozzles.

6. The sampling device for lithium ore flotation tailings recovery according to claim 1, characterized in that, The bottom of the mounting frame is fixedly provided with two supports, the inner side of the two supports is threadedly connected with two screw rods, and the opposite ends of the four screw rods are provided with mounting pads.

7. A method of recovering lithium ore flotation tailings resources, characterized by, The resource recycling method adopts the sampling device for recycling according to any one of claims 1-6, and comprises the following steps: Step S1, tailing pretreatment: The lithium-bearing pegmatite tailings are crushed and ground to make the mineral particle size reach 200 mesh, more than 60%; Step S2, multi-stage classification: The pulp is classified in multiple stages by using a hydrocyclone or a screening device to separate minerals of different particle sizes, and coarse and fine particle size minerals are preliminarily separated according to the particle size difference of feldspar, quartz and cesium bertrandite; Step S3, magnetic separation: The coarse particle size minerals are subjected to weak magnetic separation to remove iron-containing impurities, and the fine particle size minerals are subjected to strong magnetic separation to separate cesium bertrandite; Step S4, flotation separation: The coarse particle size minerals after magnetic separation are subjected to flotation, an acidic medium and a fatty acid collector are used to preferentially float feldspar, the fine particle size minerals after magnetic separation are subjected to flotation, an alkaline medium and an amine collector are used to preferentially float quartz, and the lithium ore flotation tailings recycling sampling device is used to sample and detect the viscosity of the flotation froth during the flotation process; Step S5, concentrate dewatering and drying: The feldspar, quartz and cesium bertrandite concentrates obtained by flotation are respectively dewatered and dried to obtain final products.

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