Ore pulp division sampling system with balanced ore division function

By integrating the ore separating box function into the slurry reducing sampler, the problems of large space occupation and insufficient plant height difference of mineral processing equipment are solved, realizing the miniaturization and efficient operation of the equipment, reducing construction costs and improving the stability of the mineral processing process.

CN121933305APending Publication Date: 2026-04-28DANDONG JINHE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DANDONG JINHE TECH CO LTD
Filing Date
2026-02-06
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing mineral processing equipment occupies a large space and cannot be miniaturized. Furthermore, the height difference of the equipment and insufficient space in the process design lead to high plant construction costs.

Method used

By integrating the ore separation box function into the slurry reduction sampler, the integrated design of slurry reduction sampling and ore separation is realized. The structure of regulating valve group and anti-vibration positioning part is adopted to optimize the equipment layout and reduce the slurry flow path and equipment wear.

Benefits of technology

It saves on plant design and construction costs, reduces equipment wear and tear, enables efficient equipment operation and optimized space utilization, and improves the stability of mineral processing and the service life of equipment.

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Abstract

The invention relates to the technical field of preparation equipment, and discloses an ore pulp division sampling system with a balanced ore separation function, which comprises an ore pulp division sampler, an ore separation box for collecting main process ore pulp subjected to division sampling, and an ore separation box for collecting main process ore pulp subjected to balance ore separation, and three division units are arranged in the ore pulp division sampler and are communicated with one another through a sampling cutter assembly; the ore separation box is fixedly connected to the bottom of the ore pulp division sampler, the bottom of the ore separation box is fixedly connected with at least two adjusting valve sets, the adjusting valve sets are used for balanced ore separation of materials in the ore separation box, and an anti-vibration positioning part is installed on the ore pulp division sampler and used for guiding the action ends of the adjusting valve sets. Through the integrated design of the function of the ore separation box and the ore pulp division sampler, the space layout constraint is innovatively solved, the plant design and construction cost is saved, and division sampling and balanced ore separation can be achieved with a small occupied space.
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Description

Technical Field

[0001] This invention relates to the field of mineral processing equipment technology, specifically to a slurry reduction and sampling system with a balanced mineral separation function. Background Technology

[0002] In the mineral processing process, the application of reduced-sample systems that ensure representative slurry sampling is becoming increasingly common. In existing technologies, the height space occupied by the sizing and sampling equipment is between 1.2 meters and 2.0 meters. The height difference between the inlet and outlet pipes needs to be at least 0.6 meters. In some mineral processing applications, after the sizing and sampling equipment is discharged, it needs to enter processes such as magnetic separators, vibrating screens, washing machines, and filters. Existing technologies use ore-separating boxes for ore separation, and the ore-separating boxes themselves are 1.3 meters to 2.0 meters high. Adding the height of the sizing and sampling equipment, as well as the height difference reserved for maintenance and the minimum slope difference of the slurry pipes, the height difference required for the sizing and sampling equipment and the ore-separating box is at least 3 to 4 meters. Therefore, the equipment occupies a large space and cannot be miniaturized.

[0003] In addition, the layout of the reduced sampling and the ore distribution box should, in principle, not overlap vertically, with at least enough space to accommodate the ore distribution box. Summary of the Invention

[0004] This invention provides a slurry reduction and sampling system with balancing ore distribution function. By integrating the ore distribution box function with the slurry reduction sampler, it innovatively solves the spatial layout constraints, saves plant design and construction costs, and can solve slurry reduction sampling and balancing ore distribution with a small space occupation. It solves the problems of large equipment space occupation leading to plant height difference and insufficient space mentioned in the background technology.

[0005] This invention provides the following technical solution: A slurry reduction and sampling system with balanced ore separation function includes a slurry reduction sampler, which has three reduction units connected to each other via a sampling knife assembly. It also includes a ore separation box for collecting the main process slurry after reduction and sampling, fixedly connected to the bottom of the slurry reduction sampler. At least two sets of regulating valves are fixedly connected to the bottom of the ore separation box for discharging materials from the ore separation box. The slurry reduction sampler is equipped with a vibration-damping positioning part for guiding the actuating end of the regulating valves.

[0006] As a preferred embodiment of the present invention, the regulating valve group includes a valve seat fixedly connected to the bottom of the ore distribution box, a valve core adapted to the valve seat is vertically connected to the ore distribution box, a valve stem is fixedly connected to the valve core, and an actuator for driving the valve core to move up and down is fixedly connected to the ore distribution box. The valve stem is fixedly connected to the output end of the actuator through a universal coupling, and the anti-vibration positioning part is used to guide the valve stem.

[0007] As a preferred embodiment of the present invention, a fixed flange is fixedly connected to one end of the valve seat extending into the ore distribution box, and a valve sleeve is fixedly connected inside the fixed flange. The outer wall of the valve core fits against the inner wall of the valve sleeve, and the valve seat diameter is between DN200 and DN600.

[0008] As a preferred embodiment of the present invention, the valve core and valve sleeve are both made of polyurethane, and the fixing flange is made of ultra-high molecular weight polyethylene.

[0009] As a preferred embodiment of the present invention, the valve core has a conical truncated structure with a conical angle ranging from 60° to 70°.

[0010] As a preferred embodiment of the present invention, the vibration-damping positioning part includes a positioning block with a central hole, the outer wall of the valve stem is adapted to the central hole, the outer wall of the slurry reducing sampler and the inner wall of the ore separating box are respectively fixedly connected to a first bracket and a second bracket, the positioning block is respectively fixedly connected to the first bracket and the second bracket, and the axes of the two sets of central holes coincide.

[0011] As a preferred embodiment of the present invention, the positioning block is made of ultra-high molecular weight polyethylene.

[0012] As a preferred embodiment of the present invention, observation windows are fixedly connected to both ends of the ore distribution box, and maintenance doors can be detachably connected to the top of both ends of the ore distribution box.

[0013] As a preferred technical solution of the present invention, the reduction units are respectively primary reduction, secondary reduction and tertiary reduction. The bottom of the reduction unit is provided with a discharge pipe that communicates with the ore distribution box. A cone-shaped plunger valve is coaxially and vertically connected inside the discharge pipe. The plunger valve is used to empty the reduction unit in case of emergency of the discharge pipe and to be used for the automatic opening and closing of the reduction sampling knife edge to remove impurities.

[0014] As a preferred embodiment of the present invention, the secondary scaling and tertiary scaling are connected to the ore distribution box through a chute. The chute is a segmented square tube and is inclined at an angle of 15°-45°.

[0015] Compared with the prior art, the present invention provides a slurry reduction and sampling system with balanced ore separation function, which has the following beneficial effects: 1. In this slurry reduction and sampling system with balanced ore separation function, by installing a ore separation box at the bottom of the slurry reduction sampler, it can not only directly collect the main process slurry after reduction and sampling, reduce the slurry flow path, avoid slurry siltation, and simplify the structure and reduce the probability of equipment wear, but also solve the problem of space layout constraints in an innovative integrated design, saving plant design and construction costs.

[0016] 2. In this slurry reduction and sampling system with balanced ore distribution function, a positioning block guides the valve stem. When the valve stem is long and the slurry in the distribution box fluctuates, the valve stem will shake significantly. The positioning block can not only effectively control the position of the valve stem and ensure the control accuracy of the valve core on the valve seat opening, but also, because the positioning block is made of ultra-high molecular weight polyethylene, it is wear-resistant and corrosion-resistant. In addition, its self-lubricating properties allow for a gap of less than 1mm between the positioning block and the valve stem, reducing wear on the valve stem. Furthermore, the fixing holes on the first and second supports are oblong holes, which can adjust the installation position of the positioning block according to the actual use of the valve stem, improving the performance.

[0017] 3. In this slurry reduction and sampling system with balanced ore distribution function, the sluice is connected in sections, that is, each section is connected by flanges. This not only facilitates the assembly of the sluice, but also makes it easier to inspect and clean the sluice. In addition, the sluice is set at an incline, which facilitates the flow of slurry into the ore distribution box, reduces the accumulation of slurry in the sluice, and improves the use effect.

[0018] The parts not covered in this device are the same as or can be implemented using existing technologies. This invention innovatively solves the spatial layout constraints by integrating the ore distribution box function with the slurry reduction sampler, saving plant design and construction costs, and can solve the problems of reduction sampling and balanced ore distribution with a small space occupation. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a first-view perspective stereoscopic diagram of the present invention; Figure 2 This is a second-view perspective stereoscopic diagram of the present invention; Figure 3 This is a third-view perspective stereoscopic diagram of the present invention; Figure 4 This is a cross-sectional perspective view of the present invention; Figure 5 This is a cross-sectional plan view of the present invention; Figure 6This is a three-dimensional schematic diagram of the regulating valve assembly of the present invention.

[0021] In the diagram: 1. Slurry reducing sampler; 101. Reducing unit; 102. Discharge pipe; 103. Piston valve; 104. Chute; 2. Sampling knife assembly; 201. Slurry inlet; 202. Slurry outlet; 203. Inlet baffle; 3. Slurry distribution box; 301. Valve seat; 302. Fixed flange; 303. Observation window; 304. Inspection door; 4. Valve core; 401. Valve stem; 402. Universal coupling; 403. Actuator; 5. Positioning block; 501. First support; 502. Second support; 6. Valve sleeve; 7. Control box. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Reference Figures 1-6A slurry reduction and sampling system with balanced ore separation function includes a slurry reduction sampler 1. One end of the slurry reduction sampler 1 is fixed with a feed pipe. The slurry reduction sampler 1 contains three reduction units 101, namely primary reduction, secondary reduction, and tertiary reduction. The three reduction units 101 are arranged sequentially along the axial direction of the feed pipe to achieve multi-stage reduction. The three reduction units 101 are connected by a sampling knife assembly 2. The sampling knife assembly 2 consists of multiple parallel sampling blades, which are mutually... The slurry inlet 201 and slurry outlet 202 are connected. The slurry inlet 201 is connected to the previous stage reduction unit 101, and the slurry outlet 202 is connected to the next stage reduction unit 101. An inlet baffle 203 is connected at the slurry inlet 201 to control the size of the opening of the slurry inlet 201. The inlet baffle 203 can be driven to rise and fall by a cylinder or an electric telescopic cylinder. A control box 7 is fixedly connected to the slurry reduction sampler 1. It contains an automatic control unit such as a PLC (not shown in the figure, which is the prior art and will not be described in detail here). The sampling blades are configured with two to six blades. Here, the first-level scaling device has five blades, while the second-level and third-level scaling devices each have four blades. A discharge channel is formed between adjacent sampling blades. The device also includes a slurry distribution box 3 for collecting the main process slurry after the slurry reduction sampling. This box is fixedly connected to the bottom of the slurry reduction sampler 1. Observation windows 303 are fixedly connected to both ends of the slurry distribution box 3, and inspection doors 304 are detachably connected to the top of both ends of the box. The inspection doors 304 are detachable and sealed using bolts and gaskets. The observation windows 303 facilitate observation of the slurry distribution status during daily operation. The inspection doors 304 are designed for easy maintenance. The slurry reduction sampler 1 spans above the slurry distribution box 3, with both ends of the box extending approximately 60cm beyond it. This facilitates the installation and maintenance of the internal components of the slurry distribution box 3. Furthermore, the overall length of the slurry distribution box 3 is minimized to prevent slurry accumulation. At least two sets of regulating valves are fixedly connected to the bottom of the ore distribution box 3. Taking two sets of regulating valves as an example, the regulating valves are used for discharging materials inside the ore distribution box 3. Furthermore, an anti-vibration positioning part is installed on the slurry reducing sampler 1 to guide the actuating end of the regulating valves. Because the slurry fluctuates within the ore distribution box 3, this fluctuation can cause the actuating end of the regulating valves to shake, resulting in changes in the state of the slurry passing through the regulating valves and affecting normal operation. By installing the ore distribution box 3 at the bottom of the slurry reducing sampler 1, not only is the main process slurry (discarded sample) after reducing and sampling directly collected, reducing the slurry flow path, avoiding slurry accumulation, simplifying the structure, and reducing the probability of equipment wear, but the integrated design also innovatively solves the problem of spatial layout constraints, saving plant design and construction costs.

[0024] Specifically, here, the regulating valve assembly includes a valve seat 301 fixedly connected to the bottom of the ore distribution box 3, a valve core 4 adapted to the valve seat 301 connected to the ore distribution box 3, a valve stem 401 fixedly connected to the valve core 4, and an actuator 403 fixedly connected to the ore distribution box 3 for driving the valve core 4 to move up and down. The actuator 403 is preferably a vertical servo electric actuator (JB / T 8809 standard, common models such as the SWL series). The valve stem 401 is fixedly connected to the output end of the actuator 403 through a universal coupling 402, which reliably transmits motion when the axis of the valve stem 401 is misaligned. The anti-vibration positioning part is used to guide the valve stem 401. A level gauge (not shown in the figure) is installed inside the ore distribution box 3 to detect the height of the slurry inside the ore distribution box 3. In use, the actuator 403 controls the valve stem 401, causing the valve core 4 to slide up or down, moving it away from or closer to the valve seat 301, thereby adjusting the opening size of the valve seat 301 inlet. In addition, the stroke of valve core 4 is between 200mm and 450mm. Taking 300mm as an example, it ensures the valve's regulating characteristics and effectively controls the flow of the balanced ore.

[0025] A fixed flange 302 is fixedly connected to one end of the valve seat 301 extending into the ore distribution box 3. The fixed flange 302 and the ore distribution box 3 are detachably connected by bolts. Ultra-high molecular weight polyethylene is used between the fixed flange 302 and the ore distribution box 3 to ensure wear resistance and structural reliability, facilitating installation, maintenance, and spare parts replacement. A valve sleeve 6 is fixedly connected inside the fixed flange 302 and secured to it with screws. The outer wall of the valve core 4 fits snugly against the inner wall of the valve sleeve 6. The valve seat 301 has a diameter ranging from DN200 to DN600; taking DN300 as an example. Furthermore, both the valve core 4 and the valve sleeve 6 are made of polyurethane. The valve core 4 has a hardness of 60-70 Shore A, and the valve sleeve 6 has a hardness of 90 Shore A or higher. Here, the valve core 4 has a hardness of 65 Shore A, and the valve sleeve 6 has a hardness of 95 Shore A, ensuring wear resistance while solving the sealing problem of the regulating valve assembly. The valve core 4 has a conical truncated structure with a cone angle ranging from 60° to 70°. Taking 60° as an example, the valve sleeve 6 has a flared structure. The curved surface of the inner wall of the valve sleeve 6 matches the shape of the valve core 4, which can increase the fit and improve the sealing effect.

[0026] The vibration-damping positioning unit includes a positioning block 5 with a central hole. The outer wall of the valve stem 401 is adapted to the central hole, meaning the valve stem 401 passes through the central hole. A first support 501 and a second support 502 are fixedly connected to the outer wall of the slurry fractionation sampler 1 and the interior of the ore separating box 3, respectively. The positioning block 5 is fixedly connected to both the first support 501 and the second support 502. The distance between the bottom end face of the second support 502 and the top end face of the valve core 4 is 300mm (310mm for example). During installation, it is preferable that the axis of the central hole on the positioning block 5 coincides. The positioning block 5 is made of ultra-high molecular weight polyethylene. The ultra-high molecular weight polyethylene material of the positioning block 5 is wear-resistant and corrosion-resistant. Combined with its self-lubricating properties, a gap of less than 1mm between the positioning block 5 and the valve stem 401 can be designed to effectively control the position of the valve stem 401. The positioning block 5 is detachably connected to the first bracket 501 and the second bracket 502 by bolts. The valve core 4 and valve stem 401 can be disassembled. Moreover, the fixing holes on the first bracket 501 and the second bracket 502 are all oblong holes, which can adjust the installation position of the positioning block 5 and improve the use effect.

[0027] A discharge pipe 102 connected to the ore distribution box 3 is provided at the bottom of the sizing unit 101. A cone-shaped plunger valve 103 is coaxially and vertically connected inside the discharge pipe 102. The plunger valve 103 is used to control the discharge of material from the discharge pipe 102. Here, it is preferable to use a cylinder to drive the opening and closing of the plunger valve 103, which is used to empty the sizing unit in case of an accident, and to be used for the automatic opening and closing of the sizing sampling knife edge to remove impurities.

[0028] Furthermore, the secondary and tertiary scaling sections are connected to the distribution box 3 via chutes 104, used to discharge the main process slurry (discarded sample) after reduced sampling into the distribution box 3. Chutes 104 are segmented square pipes, inclined at angles of 15°-45°. Taking 25° as an example, slopes greater than 15° converge into the distribution box 3, ensuring slurry flow rate. The segmented connection design of chutes 104 (via flanges with sealing gaskets) facilitates the segmented assembly of the sampler and the maintenance of chutes 104. In use, the raw material enters the slurry reducing sampler 1 through the feed pipe. The inlet baffle 203 on the sampling knife assembly 2 is opened in sequence. Part of the material (retained sample) enters the sampling chamber behind through the first-level scaling, second-level scaling and third-level scaling in sequence. The main process slurry (discarded sample) after reducing and sampling can enter the ore distribution box 3 through the discharge channel. The opening size of the regulating valve group in the ore distribution box 3 is controlled to balance the ore distribution. It can enter the next process flow, such as magnetic separator, filter, etc., through the valve seat 301.

[0029] In this invention, the slurry is slurry-reducing sampler 1 performs slurry reduction sampling, and then the slurry is distributed to the magnetic separator, filter, vibrating screen, washing machine, etc., through the slurry distribution box 3. The slurry first enters the feed pipe of the slurry-reducing sampler 1, and after passing through the primary, secondary, and tertiary slurry reduction units, the main process slurry flows by gravity into the slurry distribution box 3. The slurry then passes through the regulating valve group of the slurry distribution box 3 to enter the next stage of the process flow, such as the magnetic separator and filter. Due to the influence of pipeline layout and equipment height differences, without the control of the regulating valve group, the flow rate of slurry entering the magnetic separator, filter, etc., may be uneven, affecting equipment efficiency and process indicators. By adjusting the opening of the regulating valve group, balanced slurry distribution is achieved, improving equipment efficiency and stabilizing mineral processing indicators.

[0030] The number and size of the regulating valve group are determined according to the specific process requirements, generally between two and four. Five to eight regulating valve groups can also be customized as needed by adjusting the length of the first-level shrinkage unit, adjusting the width of the ore distribution box 3, etc.

[0031] This slurry reduction and sampling system with balanced ore separation function can achieve the following: 1. The integrated application of the reduction sampling and balancing ore distribution box 3 solves the problem of combining reduction sampling and balancing ore distribution into one machine, achieving dual functionality. The significance of this integrated application is that it saves on the plant height difference occupied by reduction sampling and balancing ore distribution functions, reduces the floor space required, lowers the plant construction elevation by at least 80cm, and saves over two million yuan in construction costs per project. The balancing ore distribution box 3 directly collects the ore slurry after reduction, including the main process slurry after primary, secondary, and tertiary reduction, and discharges it through the discharge port (regulating valve group) into the feed circuit of the next stage multi-process equipment. The balancing ore distribution box 3 features a wear-resistant and compact structural design, with an electric regulating valve group for slurry balance adjustment, and includes a secondary and tertiary reduction ore return structure design to achieve reliable and uniform balanced ore distribution.

[0032] 2. The slurry balance distribution control was completed, solving the problems of uneven slurry distribution, low reliability of regulating valve groups, and poor valve sealing in slurry distribution technology. The significance of "slurry balance distribution control" is to solve the problem of uneven slurry distribution in the mineral processing process, which prevents mineral processing equipment such as magnetic separators, filters, vibrating screens, and washing machines from operating at equal efficiency. It also addresses the problem of uneven slurry distribution causing equipment overload, affecting process parameters and equipment lifespan. This application achieves "slurry balance distribution control" through the following setup: The balance distribution valve (regulating valve group) includes a plunger valve core 4, valve seat 301, a connecting flange 302 for valve seat 301, valve stem 401, universal coupling 402, positioning block 5, and electric or pneumatic actuator 403. The cone angle of the plunger valve core 4 is designed between 60 and 70 degrees, ensuring the valve's adjustment range while controlling the valve's adjustment stroke between 200mm and 450mm, guaranteeing the valve's adjustment characteristics and effectively controlling the flow rate of the balanced slurry distribution.

[0033] 3. Saves space in the ore dressing plant due to elevation differences; saves space in the ore dressing plant for equipment layout; this application innovatively solves the problem of space layout constraints by integrating the function of the slurry distribution box with the slurry reduction and sampling, thus saving plant design and construction costs.

[0034] 4. To solve the problem of insufficient plant height and space when building a reducing sampler in front of the slurry distribution box 3 in existing concentrators; "insufficient space" will prevent the use of the reducing sampler scheme and cannot solve the problem of representative sampling. The reducing sampler and the distribution box 3 in this application are designed to be used in one machine, which saves the height difference requirement and saves the space occupied, and can solve the problems of reducing sampler and balancing the distribution with a smaller space occupation.

[0035] 5. Solving the problem of automatic adjustment and balanced distribution of slurry in the slurry distribution box 3. The significance of "automatic adjustment and balanced distribution of slurry" is to maximize the working efficiency of parallel-operating mineral processing equipment such as magnetic separators, filters, and vibrating screens, ensuring that each piece of equipment can perform equally well and stabilize mineral processing parameters. This application uses an electrically adjustable plunger valve (adjusting valve group) to realize the function of automatic balanced distribution of slurry in the slurry distribution box, solving the reliability problem of the slurry balance regulating valve and solving the problem of automatic adjustment of slurry balance distribution.

[0036] Components not described in detail in this article are existing technologies.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solutions of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall still fall within the scope of the technical solutions of the present invention.

Claims

1. A slurry reduction sampling system with balanced ore separation function, comprising a slurry reduction sampler (1), characterized in that, The slurry reduction sampler (1) has three reduction units (101), which are connected to each other by a sampling knife assembly (2). It also includes a slurry collection box (3) for collecting the main process slurry after reduction sampling, which is fixedly connected to the bottom of the slurry reduction sampler (1). Among them, at least two sets of regulating valve groups are fixedly connected to the bottom of the ore distribution box (3). The regulating valve groups are used for the balanced distribution of materials in the ore distribution box (3). The slurry shrinking sampler (1) is equipped with a vibration-damping positioning part, which is used to guide the action end of the regulating valve group.

2. The slurry reduction and sampling system with balanced ore separation function according to claim 1, characterized in that, The regulating valve assembly includes a valve seat (301) fixedly connected to the bottom of the ore distribution box (3). The ore distribution box (3) is connected to a valve core (4) adapted to the valve seat (301). A valve stem (401) is fixedly connected to the valve core (4). An actuator (403) for driving the valve core (4) to move up and down is fixedly connected to the ore distribution box (3). The valve stem (401) is fixedly connected to the output end of the actuator (403) through a universal coupling (402). The anti-vibration positioning part is used to guide the valve stem (401).

3. A slurry reduction and sampling system with balanced ore separation function according to claim 2, characterized in that, The valve seat (301) extends into the ore box (3) and is fixedly connected to a fixed flange (302). A valve sleeve (6) is fixedly connected inside the fixed flange (302). The outer wall of the valve core (4) fits against the inner wall of the valve sleeve (6), and the valve seat (301) has a diameter of DN200-DN600.

4. A slurry reduction and sampling system with balanced ore separation function according to claim 3, characterized in that, The valve core (4) and valve sleeve (6) are both made of polyurethane, and the fixed flange (302) is made of ultra-high molecular weight polyethylene.

5. A slurry reduction and sampling system with balanced ore separation function according to claim 3, characterized in that, The valve core (4) has a conical truncated structure with a conical angle range of 60°-70°.

6. A slurry reduction and sampling system with balanced mineral distribution function according to claim 2, characterized in that, The vibration-damping positioning part includes a positioning block (5) with a central hole. The outer wall of the valve stem (401) is adapted to the central hole. The outer wall of the slurry reducing sampler (1) and the inner wall of the ore separating box (3) are respectively fixedly connected to a first support (501) and a second support (502). The positioning block (5) is respectively fixedly connected to the first support (501) and the second support (502). The axes of the two sets of central holes coincide.

7. A slurry reduction and sampling system with balanced ore separation function according to claim 6, characterized in that, The positioning block (5) is made of ultra-high molecular weight polyethylene.

8. A slurry reduction and sampling system with balanced mineral distribution function according to claim 1, characterized in that, Both ends of the ore distribution box (3) are fixedly connected to observation windows (303), and both ends of the ore distribution box (3) are detachably connected to maintenance doors (304).

9. A slurry reduction and sampling system with balanced ore separation function according to claim 1, characterized in that, The reduction unit (101) is divided into first-level reduction, second-level reduction and third-level reduction. The bottom of the reduction unit (101) is provided with a discharge pipe (102) that is connected to the ore distribution box (3). The discharge pipe (102) is coaxially connected with a piston valve (103) with a conical structure.

10. A slurry reduction and sampling system with balanced ore separation function according to claim 9, characterized in that, The secondary and tertiary reduction are connected to the ore distribution box (3) through a chute (104). The chute (104) is a segmented square pipe and is inclined at an angle of 15°-45°.

Citation Information

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