Phosphorite grading and sorting device

Abstract

The utility model discloses a phosphorite grading and sorting device which comprises a rotational flow grading device, an overflow groove and a tailing collecting device, the rotational flow grading device is arranged above the tailing collecting device, and the overflow groove is arranged on the left side of the rotational flow grading device and is connected with the rotational flow grading device through a pipeline; the cyclone grading device further comprises a filtering device, a feeding cavity, a cyclone, an automatic sand discharging pipe, a slurry cavity and a supporting platform. The overflow groove further comprises a stirring device and a groove body; the tailing collecting device further comprises a collecting tank and a vibration base, and the collecting tank is arranged above the vibration base. According to the utility model, a filtering structure is added, so that the problem of blockage of foreign matters in the cavity of the feeder is reduced; the sand discharging structure below the tailings opening prevents the tailings opening from being blocked; mortar on the bottom layer of the overflow groove can be secondarily sorted, and resource waste is reduced. The vibrating device is additionally arranged in the tailing tank, so that the situation that the tailings are adhered to the inner wall of the collecting tank is reduced, and the recovery efficiency of the tailings is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mineral classification and sorting, in particular to a phosphate rock classification and sorting device. Background Art

[0002] Ore dressing and grading separation technology is a technology that separates ore from useful components according to the characteristics of the ore and the different occurrence states of useful components. According to the physical and chemical properties of different minerals in the ore, the ore is ground and finely, and then gravity separation, flotation, magnetic separation, etc. are used to separate useful minerals from other minerals. In the phosphate smelting industry, after the phosphate ore is crushed and screened, it needs to be graded and sorted by a cyclone. The ore pulp that meets the requirements is sent to the flotation machine for flotation, and the larger ore particles are graded and screened out, and then processed to meet the requirements.

[0003] In the prior art, a high-efficiency fluid cyclone assembly disclosed in Chinese Patent (CN220697119U) includes a mounting bracket, on which a distributor, an overflow trough, and a grit trough are sequentially mounted from top to bottom. Multiple cyclones are circumferentially connected to the distributor. An overflow pipe is mounted at the overflow port of the cyclone, and the outlet end of the overflow pipe is located in the overflow trough. A gate valve is mounted on the overflow pipe. An underflow pipe is mounted at the underflow port of the cyclone, and the outlet end of the underflow pipe is located in the grit trough.

[0004] This method has the following defects: 1. Sediment easily accumulates in the feeder cavity, causing blockage; 2. The straight section below the tailings outlet of the cyclone is easily blocked, reducing work efficiency; 3. There is sediment at the bottom of the overflow trough that sinks due to gravity and is not recycled, resulting in a waste of resources; 4. The sorted tailings easily stick to the collection chamber and are difficult to clean.

[0005] To this end, this article provides a phosphate rock grading and sorting device. Utility Model Content

[0006] In order to solve the above technical problems, the utility model discloses a phosphate ore grading and sorting device, which adds a filtering structure to reduce the problem of foreign matter clogging in the feeder cavity; the sand discharge structure below the tailings outlet prevents the tailings outlet from being blocked; the slurry at the bottom of the overflow trough can be sorted for the second time, reducing resource waste; the tailings trough is added with a vibration device to reduce the situation of tailings sticking to the inner wall of the tailings trough, thereby improving the tailings recovery efficiency.

[0007] To achieve the above technical effects, the utility model provides a phosphate ore grading and sorting device, comprising a cyclone grading device, an overflow trough, and a tailings collecting device. The cyclone grading device is arranged above the tailings collecting device, and the overflow trough is arranged on the left side of the cyclone grading device and is connected to the cyclone grading device through a pipeline. The cyclone grading device also includes a filter device, a feeding chamber, a cyclone, an automatic sand discharge pipe, a slurry chamber, and a support platform. The feeding chamber is mounted on the support platform. The filter device is mounted below the feeding chamber and is connected to the feeding chamber inlet through a pipeline. The cyclone is arranged on the side of the feeding chamber and the side inlet of the cyclone is connected to the side outlet of the feeding chamber through a pipeline. The automatic sand discharge pipe is mounted below the tailings outlet of the cyclone. The slurry chamber is arranged below the feeding chamber and is connected to the upper outlet of the cyclone through a pipeline. The overflow trough also includes a stirring device and a trough body, and the stirring device is arranged above the trough body. The tailings collecting device also includes a collection trough and a vibrating base, and the collection trough is arranged above the vibrating base.

[0008] Preferably, the filtering device also includes a Y-shaped tube, a circular hole filter plate, and a gate valve. The right inlet of the Y-shaped tube is connected to the feeding pipe, the upper outlet of the Y-shaped tube is connected to the feeding chamber inlet through a pipe, the gate valve is installed at the lower end of the Y-shaped tube, and the circular hole filter plate is arranged on the outlet side of the Y-shaped tube.

[0009] Preferably, a reflux outlet pipe is provided at the upper end of the feeding chamber.

[0010] Preferably, the automatic sand discharge pipe further includes an annular bracket, a telescopic cylinder, an arc plate, and a flexible connection. The annular bracket is arranged on the side of the cone outlet end at the bottom of the cyclone, the telescopic cylinder is arranged on the annular bracket, the arc plate is installed at the output end of the telescopic cylinder, and the flexible connection is arranged on the outside of the arc plate and connects several arc plates.

[0011] Preferably, the tank body further includes a reflux inlet pipe and a reflux pump group. The reflux inlet pipe is arranged at the bottom of the side of the tank body. The inlet of the reflux pump group is connected to the reflux inlet pipe by a pipeline, and the outlet of the reflux pump group is connected to the reflux outlet pipe by a pipeline.

[0012] Preferably, the vibration base further includes a vibration motor, a spring, a rubber cylinder, and a support base. The vibration motor is installed below the collection tank. The support base is arranged below the collection tank and a rubber cylinder is installed between the support base and the collection tank. A spring is arranged in the rubber cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The device includes a cyclone classifying device, an overflow trough, and a tailings collection device. The filter device can filter out larger mineral particles in the ore slurry entering the feed chamber, reducing the problem of foreign matter clogging in the feeder cavity; the automatic sand discharge pipe below the cyclone can expand outward when cleaning is required to prevent the tailings outlet from being blocked; the return pipe below the overflow trough can recover the mineral particles precipitated by gravity in the lower layer of ore slurry into the feed chamber through a reflux pump group, and enter the cyclone for secondary sorting, reducing resource waste; the vibrating base below the tailings collection device can vibrate the tailings stuck in the collection trough to the collection trough outlet, improving recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric view of the present invention divided into two equal parts, upper and lower;

[0016] Figure 2 It is a right side view of the utility model;

[0017] Figure 3 yes Figure 2 Cross-sectional view of section a;

[0018] Figure 4 This is a bottom view of the automatic sand discharge pipe in the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the vibration base in the utility model;

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Feeding chamber; 2. Cyclone; 3. Automatic sand discharge pipe; 4. Slurry chamber; 5. Support platform; 6. Agitation device; 7. Tank body; 8. Collection tank; 9. Y-type tube; 10. Circular filter plate; 11. Gate valve; 12. Ring bracket; 13. Telescopic cylinder; 14. Arc plate; 15. Flexible connection; 16. Return outlet pipe; 17. Return inlet pipe; 18. Return pump unit; 19. Vibration motor; 20. Spring; 21. Rubber cylinder; 22. Support base; 23. Feeding pipe; 24. Tailings outlet; 25. Overflow pipe; 26. Collection tank outlet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0023] like Figures 1 to 5As shown, the prior art in this embodiment has the following problems: The inventors have found that the prior art has the following defects: 1. Sediment easily accumulates in the feeder cavity, causing blockage; 2. The straight section below the tailings outlet of the cyclone is easily blocked, reducing work efficiency; 3. There is sediment at the bottom of the overflow trough that sinks due to gravity and is not recycled, resulting in resource waste; 4. The sorted tailings easily stick to the collection chamber, making it difficult to clean;

[0024] Therefore, the inventor provides a phosphate ore grading and sorting device, including a cyclone grading device, an overflow trough, and a tailings collection device. The cyclone grading device is arranged above the tailings collection device, and the overflow trough is arranged on the left side of the cyclone grading device and is connected to the cyclone grading device through a pipeline; the cyclone grading device also includes a filter device, a feeding chamber 1, a cyclone 2, an automatic sand discharge pipe 3, a slurry chamber 4, and a support platform 5. The feeding chamber 1 is installed on the support platform 5, the filter device is installed below the feeding chamber 1 and is connected to the inlet of the feeding chamber 1 through a pipeline, the cyclone 2 is arranged on the side of the feeding chamber 1, and the side inlet of the cyclone 2 is connected to the side outlet of the feeding chamber 1 through a pipeline, the automatic sand discharge pipe 3 is installed below the tailings port 24 of the cyclone 2, and the slurry chamber 4 is arranged below the feeding chamber 1 and is connected to the upper outlet of the cyclone 2 through a pipeline; the overflow trough also includes a stirring device 6 and a trough body 7, and the stirring device 6 is arranged above the trough body 7; the tailings collection also includes a collection trough 8 and a vibrating base, and the collection trough 8 is arranged above the vibrating base.

[0025] By adopting the above scheme, the unclassified ore pulp enters the feeding chamber 1 from the feeding pipe 23 below, and the larger ore particles are filtered out by the filtering device, reducing the problem of foreign matter blockage in the feeder cavity; the filtered ore liquid enters the cyclone 2 from the feeding chamber 1, and is cyclone-classified in the cyclone 2. The tailings with higher specific gravity settle downward and enter the automatic sand discharge pipe 3 through the tailings outlet 24 for discharge. If the automatic sand discharge pipe 3 is blocked, it can automatically expand to discharge the blockage, preventing the tailings outlet 24 from being blocked; the tailings are discharged into the collection tank 8 in the tailings collection device, and the collection tank 8 is driven to vibrate by the vibrating base to discharge the tailings therein, reducing the situation of tailings sticking to the inner wall of the tailings tank and improving the tailings recovery efficiency; the ore pulp with lower specific gravity enters the slurry chamber 4 from the overflow pipe 25, and then is discharged into the overflow tank. The overflow tank stirs the ore pulp and transports it to the next process. During the process, the ore particles settled to the lower layer return through the return pipe on the tank body 7 into the cyclone classification device for secondary classification treatment, reducing resource waste.

[0026] Furthermore, the filtering device further includes a Y-shaped tube 9, a circular hole filter plate 10, and a gate valve 11. The right inlet of the Y-shaped tube 9 is connected to the feeding pipe 23, the upper outlet of the Y-shaped tube 9 is connected to the inlet of the feeding chamber 1 through a pipe, the gate valve 11 is installed at the lower end of the Y-shaped tube 9, and the circular hole filter plate 10 is arranged on the outlet side of the Y-shaped tube 9;

[0027] Among them, the circular hole filter plate 10 in the filtering device can intercept and filter out the larger mineral particles in the ore slurry that enters the feeding chamber 1 upward. The mineral particles settle to the gate valve 11 below the Y-shaped tube 9 due to gravity. The filtered mineral particles can be cleaned by opening the gate valve 11, reducing the problem of foreign matter blockage in the feeder cavity.

[0028] Furthermore, the automatic sand discharge pipe 3 also includes an annular bracket 12, a telescopic cylinder 13, an arc plate 14, and a flexible connection 15. The annular bracket 12 is arranged on the side of the cone outlet end at the bottom of the cyclone 2, the telescopic cylinder 13 is arranged on the annular bracket 12, the arc plate 14 is installed at the output end of the telescopic cylinder 13, and the flexible connection 15 is arranged on the outside of the arc plate 14 and connects several arc plates 14;

[0029] Among them, in the normal state, the telescopic cylinder 13 is in the extended state, and the diameter of the arc plate 14 is the same as the tailings outlet 24. The tailings generated after sorting and grading by the cyclone 2 accumulate in the pipe formed by the arc plates 14. The telescopic cylinder 13 on the annular bracket 12 contracts, expanding the diameter of the pipe formed by the middle arc plate 14, so that the blocked tailings fall down, and after cleaning, it contracts inward to its initial state. The soft connection 15 between the arc plates 14 can prevent the tailings slurry from splashing around, and the entire structure prevents the tailings outlet 24 from being blocked.

[0030] Furthermore, a reflux outlet pipe 16 is provided at the upper end of the feeding chamber 1;

[0031] Furthermore, the tank body 7 further includes a reflux inlet pipe 17 and a reflux pump group 18. The reflux inlet pipe 17 is arranged at the lower side of the tank body 7. The inlet of the reflux pump group 18 is connected to the reflux inlet pipe 17 by a pipe, and the outlet of the reflux pump group 18 is connected to the reflux outlet pipe by a pipe.

[0032] Among them, the ore slurry containing mineral particles accumulated in the lower layer of the tank body 7 due to sedimentation can be transported from the tank body 7 to the reflux outlet pipe 16 by the reflux pump group 18 through the reflux inlet pipe 17 and then enter the feeding chamber 1, and then sent back to the cyclone 2 for secondary sorting to separate the ore sand, reducing resource waste.

[0033] Furthermore, the vibration base also includes a vibration motor 19, a spring 20, a rubber cylinder 21, and a support base 22. The vibration motor 19 is installed below the collection tank 8. The support base 22 is arranged below the collection tank 8 and a rubber cylinder 21 is installed between the support base 22 and the collection tank 8. The spring 20 is arranged in the rubber cylinder 21.

[0034] Among them, the operation of the vibration motor 19 drives the collection tank 8 to vibrate on the spring 20 and the rubber cylinder 21 of the support base 22, and vibrates the tailings stuck on the collection tank 8 to the collection tank outlet 26 of the collection tank 8. The spring 20 and the rubber cylinder 21 provide a buffering function, and the entire device improves the recovery efficiency of the tailings.

[0035] In summary, the device includes a cyclone classification device, an overflow trough, and a tailings collection device. The filtering device can filter out larger mineral particles in the ore slurry entering the feed chamber 1, reducing the problem of foreign matter clogging in the feeder cavity; the automatic sand discharge pipe 3 below the cyclone 2 can expand outward when cleaning is required to prevent the tailings outlet 24 from being blocked; the reflux pipe below the overflow trough can recover the mineral particles in the lower layer of ore slurry that have settled due to gravity into the feed chamber 1 through the reflux pump group 18, and enter the cyclone 2 for secondary sorting, reducing resource waste; the vibrating base below the tailings collection device can vibrate the tailings stuck in the collection trough 8 to the collection trough outlet 26, thereby improving the recovery efficiency.

[0036] The working principle of the utility model is as follows: unclassified ore slurry enters the Y-shaped tube 9 from the feeding pipe 23 below, passes through the circular hole filter plate 10 in the Y-shaped tube 9, filters out the ore particles with larger particle size, and then enters the feeding chamber 1. The ore particles filtered out by the circular hole filter plate 10 settle to the gate valve 11 below the Y-shaped tube 9 due to gravity. The gate valve 11 is opened to clean the ore sand, thereby reducing the problem of foreign matter clogging in the feeder cavity.

[0037] The slurry in the feeding chamber 1 enters the cyclone 2 through the pipe on the side of the feeding chamber 1, and rotates along the inner wall of the cyclone 2. The tailings with higher specific gravity accumulate downwards to the tailings outlet 24, and are discharged into the collection tank 8 in the tailings collection device through the automatic sand discharge pipe 3. The slurry with lower specific gravity enters the slurry chamber 4 through the overflow pipe 25 above the cyclone 2, and is then discharged from the slurry chamber 4 into the overflow tank.

[0038] When tailings accumulate in the automatic sand discharge pipe 3, the telescopic cylinder 13 is in an extended state under normal conditions, and the diameter of the arc plate 14 is the same as that of the tailings outlet 24. When the blockage in the automatic sand discharge pipe 3 needs to be cleaned, the telescopic cylinder 13 on the annular bracket 12 is retracted, and the diameter of the pipe formed by the middle arc plate 14 is expanded, so that the blocked tailings fall down. After cleaning, the cylinder 13 retracts inward to its initial state. The flexible connection 15 between the arc plates 14 can prevent the tailings slurry from splashing around. The entire structure solves the problem of blockage in the tailings outlet 24.

[0039] The slurry enters the overflow tank, and the stirring device 6 continuously stirs the slurry in the overflow tank to facilitate the processing of the slurry in the next process. During the process, unclassified mineral particles still settle to the lower layer of the overflow tank. At this time, the slurry can be transported from the tank body 7 to the reflux outlet pipe 16 through the reflux inlet pipe 17 by the reflux pump group 18 and enter the feeding chamber 1. Thereafter, it is sent back to the cyclone 2 for secondary sorting to separate the ore sand, thereby reducing resource waste.

[0040] The tailings are discharged from the cyclone 2 at the tailings outlet 24 into the collection trough 8 of the tailings collection device. The collection trough 8 is an inclined surface, and most of the tailings fall along the inclined surface and are discharged at the collection trough outlet 26. However, some tailings still stick to the wall of the collection trough 8. At this time, the vibration motor 19 installed below the collection trough 8 is started, driving the collection trough 8 to vibrate on the spring 20 of the support base 22. The rubber cylinder 21 provides a buffer and protects the spring 20, thereby improving the tailings recovery efficiency of the entire device.

[0041] At this point, the phosphate rock grading and separation device completes the slurry classification process.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A phosphate rock classification and sorting device, comprising a cyclone classifier, an overflow trough, and a tailings collection device, wherein the cyclone classifier is disposed above the tailings collection device, and the overflow trough is disposed on the left side of the cyclone classifier and connected to the cyclone classifier via a pipeline; characterized in that: The cyclone classification device further comprises a filtering device, a feeding chamber (1), a cyclone (2), an automatic sand discharge pipe (3), a slurry chamber (4), and a supporting platform (5). The feeding chamber (1) is mounted on the supporting platform (5). The filtering device is mounted below the feeding chamber (1) and is connected to the feeding chamber (1) inlet via a pipe. The cyclone (2) is arranged on the side of the feeding chamber (1) and the cyclone (2) side inlet is connected to the feeding chamber (1) side outlet via a pipe. The automatic sand discharge pipe (3) is mounted below the tailings outlet (24) of the cyclone (2). The slurry chamber (4) is arranged below the feeding chamber (1) and is connected to the cyclone (2) upper outlet via a pipe. The overflow tank further comprises a stirring device (6) and a tank body (7). The stirring device (6) is arranged above the tank body (7). The tailings collection device further comprises a collecting tank (8) and a vibrating base. The collecting tank (8) is arranged above the vibrating base.

2. The phosphate rock classification and separation device according to claim 1, characterized in that: The filtering device further comprises a Y-shaped tube (9), a circular hole filter plate (10), and a gate valve (11). The right inlet of the Y-shaped tube (9) is connected to the feeding pipe (23), the upper outlet of the Y-shaped tube (9) is connected to the inlet of the feeding chamber (1) through a pipe, the gate valve (11) is installed at the lower end of the Y-shaped tube (9), and the circular hole filter plate (10) is arranged on the outlet side of the Y-shaped tube (9).

3. The phosphate rock classification and separation device according to claim 1, characterized in that: The upper end of the feeding chamber (1) is provided with a reflux outlet pipe (16).

4. The phosphate rock classification and separation device according to claim 1, characterized in that: The automatic sand discharge pipe (3) further comprises an annular bracket (12), a telescopic cylinder (13), an arc plate (14), and a flexible connection (15). The annular bracket (12) is arranged on the side of the outlet end of the lowest cone of the cyclone (2), the telescopic cylinder (13) is arranged on the annular bracket (12), the arc plate (14) is installed at the output end of the telescopic cylinder (13), and the flexible connection (15) is arranged on the outside of the arc plate (14) and connects a plurality of arc plates (14).

5. The phosphate rock classification and separation device according to claim 1, characterized in that: The tank body (7) further comprises a reflux inlet pipe (17) and a reflux pump group (18). The reflux inlet pipe (17) is arranged below the side of the tank body (7). The inlet of the reflux pump group (18) is connected to the reflux inlet pipe (17) through a pipeline, and the outlet of the reflux pump group (18) is connected to the reflux outlet pipe (16) through a pipeline.

6. The phosphate rock classification and separation device according to claim 1, characterized in that: The vibration base further comprises a vibration motor (19), a spring (20), a rubber cylinder (21), and a support base (22). The vibration motor (19) is installed below the collection tank (8). The support base (22) is arranged below the collection tank (8) and a rubber cylinder (21) is installed between the support base (22) and the collection tank (8). The spring (20) is arranged in the rubber cylinder (21).

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