A laboratory mica fine mud settling wet screening machine

Abstract

This utility model discloses a laboratory mica fine mud settling wet screening machine, relating to the field of mining laboratory equipment. It includes a fixed frame, a slurry settling chamber located at the top of the fixed frame, a drive structure located within the slurry settling chamber, a sorting screen connected to the drive structure and capable of eccentric rotation within the slurry settling chamber, a drain valve located on the side wall of the slurry settling chamber, a return liquid tank located below the slurry settling chamber and connected to the drain valve, and a circulating cleaning system located between the return liquid tank and the top of the slurry settling chamber, capable of transporting clean water from the return liquid tank to the top of the slurry settling chamber. This invention solves the problems of high time costs, difficult mud settling, and water waste caused by manual wet screening operations in various mining-related laboratories.

Description

Technical Field

[0001] This utility model relates to the field of mining laboratory equipment, specifically a wet screening machine for sedimentation of mica fine mud in a laboratory. Background Technology

[0002] In universities, research institutes, and mining enterprises in industries such as non-ferrous metals and coal, wet screening is an important method for classifying various fine-particle materials. Its advantages, including simple and intuitive operation, easy screening, and low dust generation, have led to its widespread use in particle size detection and separation of finely ground materials. However, in current scientific research activities, wet screening is still largely performed manually, which consumes a significant amount of time and energy for high-level researchers.

[0003] Furthermore, during manual wet screening, due to the low frequency of manual operation, multiple water changes and screening checks are often required to ensure the accuracy of the screening results and to guarantee the complete screening of the slime. This causes two problems: firstly, the large number of water changes during wet screening results in significant water consumption; secondly, the multiple water changes lead to a large volume of slurry containing slime, making it difficult to collect and resulting in a long settling period for the slime, which seriously affects the progress of scientific research and causes a large waste of water resources.

[0004] Therefore, it is necessary to provide a laboratory mica fine mud settling wet screening machine to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a laboratory mica fine mud settling wet screening machine, which solves the problems of high time cost, difficulty in settling sludge, and waste of water resources caused by manual wet screening operations in various mining-related laboratories.

[0006] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a laboratory mica fine mud settling wet screening machine, including a fixed frame; A slurry settling chamber is located on top of the fixed frame; A driving structure is provided in the slurry settling chamber; The sorting screen is connected to the drive structure and can rotate eccentrically in the slurry settling chamber. A drain valve is provided on the side wall of the slurry settling chamber; A reflux replenishment tank is provided below the slurry settling chamber and is connected to the drain valve. A circulating cleaning system is provided between the reflux replenishment tank and the top of the slurry settling chamber, which can transport clean water in the reflux replenishment tank to the top of the slurry settling chamber.

[0007] Preferably, the slurry settling chamber includes a cylindrical section, in which the sorting screen is installed and connected to the fixed frame and the circulating cleaning system; A conical section is coaxially disposed at the bottom of the cylindrical section, and the drain valve is provided on the outer wall of the conical section; A discharge valve is provided at the bottom of the cone section.

[0008] Preferably, the drive structure includes a motor bracket, which is located at the top of the conical section; A dual-output motor, wherein the dual-output motor is mounted on the motor bracket; A deflection assembly is disposed between the main output shaft of the dual-end output motor and the sorting screen.

[0009] Preferably, the drive structure further includes a propeller, which is coaxially connected to the auxiliary output shaft of the dual-end output motor.

[0010] Preferably, the deflection assembly includes a bias plate, which is eccentrically connected to the main output shaft of the dual-output motor; Three masts are arranged in a ring on top of the bias plate and are fixedly connected to the sorting screen.

[0011] Preferably, the deflection assembly further includes a thin screw, which is coaxially mounted on the mast; A fastening nut is screwed into the fine screw, and the sorting screen is tightly fastened between the fastening nut and the fine screw.

[0012] Preferably, the circulating cleaning system includes a circular coil, which is installed on the top wall of the slurry settling chamber. Multiple high-pressure nozzles are arranged in a ring on the top wall of the slurry settling chamber and are all connected to the circular coil. A circulation pump is located between the circular coil and the reflux replenishment tank.

[0013] In summary, this utility model has the following beneficial effects: This invention utilizes the combined action and coordination of a slurry settling chamber, a drive structure, a sorting screen, a drain valve, a return liquid replenishment tank, and a circulating cleaning system to quickly and efficiently complete the wet screening of the target mineral. During wet screening, flocculant can be added to the slurry settling chamber. Under the stirring action of the bottom propeller, the sludge quickly mixes and settles. Once the sludge has settled, the drain valve is opened to discharge the clean water from the slurry settling chamber to the return liquid replenishment tank. After the clean water is discharged, the discharge valve at the bottom of the slurry settling chamber is opened to harvest the sludge with lower water content. The discharge valve is then closed, and the circulating pump is turned on to transport the clean water in the return liquid replenishment tank to the circulating cleaning system. The clean water is then sprayed onto the inner wall of the slurry settling chamber through a high-pressure nozzle, recycling the water used in the previous wet screening and replenishing it to the slurry settling chamber while also serving a cleaning function, preparing for the next wet screening operation. Attached Figure Description

[0014] Figure 1 This is a side view of the present invention; Figure 2 This is a schematic diagram of the structure of the circulating pump of this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional schematic diagram of the removal of the circulating pump in this utility model; Figure 5 This is a schematic diagram of the connection structure between the drive structure and the sorting screen of this utility model.

[0015] In the diagram: 1. Fixed frame; 2. Slurry settling chamber; 21. Cylinder section; 22. Conical section; 23. Discharge valve; 3. Drive structure; 31. Motor bracket; 32. Dual-end output motor; 33. Propeller; 34. Offset plate; 35. Mast; 36. Fine screw; 37. Fastening nut; 4. Sorting screen; 5. Drain valve; 6. Return liquid replenishment tank; 7. Circulating cleaning system; 71. Circular coil; 72. High-pressure nozzle; 73. Circulating pump. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] refer to Figure 1-5A laboratory-grade mica fine mud settling wet screening machine includes a fixed frame 1, a slurry settling chamber 2, a drive structure 3, a sorting screen 4, a drain valve 5, a return replenishment tank 6, and a circulating cleaning system 7. The fixed frame 1 serves as the overall support foundation for the equipment and can employ three support pipes. The top of the support pipes is welded to the outside of the slurry settling chamber 2, and the bottom can be connected to the ground via anchor bolts, providing a stable mounting carrier for all functional components above, ensuring that the equipment will not shift due to vibration during operation, and guaranteeing the stability of the screening process. The slurry settling chamber 2, located at the top of the fixed frame 1, is the core processing space for the settling and screening of the mica fine mud slurry. During normal operation, it is filled with water, and the drive structure 3 and the sorting screen 4 are submerged in water. A water replenishment level control line can be installed at its top. The drive structure 3 is built into the slurry settling chamber 2, providing the power source for the screening action to drive the sorting screen. The sieve 4 achieves efficient separation motion. The sieve 4 is connected to the drive structure and can rotate eccentrically in the slurry settling chamber 2. This eccentric rotation motion allows the sieve 4 to continuously change its trajectory during the screening process, avoiding local accumulation of mica fine mud on the sieve surface and improving screening efficiency and accuracy. The sieve 4 can be a standard Taylor sieve, which is a test sieve that meets the requirements of the national standard "GB / T6003.1-2022 Technical Requirements and Inspection of Test Sieves Part 1 Metal Wire Woven Mesh Test Sieves". The drain valve 5 is located on the side wall of the slurry settling chamber 2 and serves as the outlet channel for the clear liquid after the slurry has settled. The discharge rate of the clear liquid can be adjusted by adjusting the valve opening. After the slurry has settled in the settling chamber for a period of time, the drain valve 5 is opened, and the upper clear liquid after settling flows out through the drain valve 5 and can flow into the return replenishment tank 6 through the hose connected to the drain valve 5. The return liquid replenishment tank 6 is located below the slurry settling chamber 2 and is connected to the drain valve 5. It can receive and temporarily store the clear liquid discharged from the drain valve 5. The circulating cleaning system 7 is connected between the return liquid replenishment tank 6 and the top of the slurry settling chamber 2. It can transport the clear water temporarily stored in the return liquid replenishment tank 6 to the top of the slurry settling chamber 2. It can be used to replenish the water lost during the slurry treatment process, realize the recycling of water resources, and clean the inner wall of the slurry settling chamber 2 and the sorting screen 4 to prevent fine mud from clogging.

[0018] Preferably, the volume of the reflux replenishment tank 6 is 1.5-2.5 times that of the slurry settling chamber 2, which can effectively collect circulating water while ensuring sufficient water volume for wet screening. Both the slurry settling chamber 2 and the reflux replenishment tank 6 have an open top design without a cover, which facilitates water replenishment and reagent addition.

[0019] Preferably, the slurry settling chamber 2 includes a cylindrical section 21, a conical section 22, and a discharge valve 23. The cylindrical section 21 is the main screening area for the slurry, with a spacious interior and smooth inner walls to prevent slurry stagnation during flow. The sorting screen 4 is horizontally installed inside the cylindrical section 21 to ensure that the screening action covers the entire slurry area. Simultaneously, the outer wall of the cylindrical section 21 is welded to the fixed frame 1 to ensure overall support stability. An interface is also provided at its top for connection to the circulating cleaning system 7, enabling precise delivery of the cleaning fluid. The conical section 22 is coaxial. Located at the bottom of the cylindrical section 21, the conical section 22 has a hyperbolic cross-sectional design to prevent sludge blockage and facilitate material discharge. A drain valve 5 is installed on the outer wall of the conical section 22. Since the bottom of the conical section 22 is the material sedimentation zone and the upper part is the clarified liquid zone, placing the drain valve 5 in the middle of the side wall ensures that the discharged liquid is clarified, reducing impurity contamination. The discharge valve 23 is located at the lowest point of the conical section 22. The diameter of the discharge valve 23 can be DN25-DN50; the large-diameter design facilitates the smooth discharge of sludge after wet screening. After screening, opening the discharge valve 23 allows for the rapid discharge of fine sludge particles accumulated in the conical section 22, facilitating subsequent collection and processing, and also providing a channel for cavity cleaning.

[0020] Preferably, the drive structure 3 includes a motor bracket 31, a dual-output motor 32, and a deflection assembly. The motor bracket 31 can be made of stainless steel and can consist of three fixing plates. Its upper part is narrower and the whole is thin, which can effectively prevent sludge sedimentation. It can be fixed to the inner wall of the conical section 22 by welding. The three fixing plates can be arranged in a ring to ensure that the dual-output motor 32 and the slurry settling chamber 2 are aligned with the same center. The dual-output motor 32 is vertically mounted on the motor bracket 31, and its output shaft is divided into an upward-facing main output shaft and a downward-facing auxiliary output shaft. It can provide power to two different components at the same time. The dual-end output motor 32 can adopt an IP68 waterproof and dustproof design, so that it can still maintain efficient operation even when immersed in slurry for a long time. A waterproof shell can be fitted on the dual-end output motor 32, and the main and auxiliary output shafts pass through the waterproof shell, which can reduce the contact between the dual-end output motor 32 and the slurry and further protect the dual-end output motor 32. The deflection component is located between the main output shaft of the dual-end output motor 32 and the sorting screen 4. Through this component, the uniform rotation of the dual-end output motor 32 is converted into the eccentric motion of the sorting screen 4.

[0021] Preferably, the drive structure 3 further includes a propeller 33, which is coaxially connected to the auxiliary output shaft of the dual-end output motor 32 and can be connected by a key. It is located inside the conical section 22. When the dual-end output motor 32 is started, the propeller 33 rotates with the auxiliary output shaft, so that the propeller 33 strongly stirs the slurry, accelerates the mixing of flocculant and sludge, and thus accelerates the settling of sludge.

[0022] Preferably, the deflection assembly includes an offset plate 34 and three masts 35. The offset plate 34 can be a circular metal plate or a triangular shape, with a mast 35 at each of its three corners. The offset plate 34 has an opening in the middle area, which is connected to the main output shaft of the dual-end output motor 32 by bolt fasteners. The opening position is offset from the geometric center of the offset plate 34 by 10-20mm. When the main output shaft rotates, the offset plate 34 will make an eccentric circular motion around the axis of the main output shaft, thereby driving the sorting screen 4 to move synchronously. The three masts 35 can be high-strength alloy rods, which are uniformly welded to the top of the offset plate 34 in an equilateral triangular ring. The three masts 35 have the same height and their tops are at the same horizontal plane, which is used to fix and support the sorting screen 4.

[0023] Preferably, the deflection assembly further includes a fine screw 36 and a fastening nut 37. The fine screw 36 is coaxially located at the top of the mast 35 and can be integrally cast. Its outer wall is threaded. The fastening nut 37 is screwed into the fine screw 36. The diameter of the fine screw 36 is smaller than the diameter of the mast 35. The step formed by the difference in diameter can just hold the sorting screen 4 in place. Then, the fastening nut 37 is tightened along the upper thread of the fine screw 36, which can lock the sorting screen 4 onto the fine screw 36 and the mast 35, and keep it rotating together with the deflection assembly.

[0024] Preferably, the circulating cleaning system 7 includes a circular coil 71, multiple high-pressure nozzles 72, and a circulating pump 73. The circular coil 71 can be made of corrosion-resistant plastic pipe and is laid in a ring around the outer top wall of the slurry settling chamber 2. It can be fixed by pipe clamps. The diameter and length of the circular coil 71 are set according to the diameter of the slurry settling chamber 2 to ensure that it can cover the entire top area. Multiple high-pressure nozzles 72 are evenly installed in a ring at equal angles on the inner top wall of the slurry settling chamber 2. The inlet of each high-pressure nozzle 72 is connected to the circular coil 71 through a pipe. A fan-shaped spray nozzle can be used to make the cleaning liquid form a uniform water mist coverage in the slurry settling chamber 2. This can both rinse the screen surface of the sorting screen 4 to prevent fine mud from clogging the screen holes and clean the inner wall of the cylinder section 21. The circulating pump 73 can be a corrosion-resistant centrifugal pump. Its inlet is connected to the bottom outlet of the return liquid tank 6 through a pipe, and its outlet is connected to the inlet of the circular coil 71 through a pipe.

[0025] When the circulating pump 73 starts, it can pressurize the clean water temporarily stored in the return replenishment tank 6 and deliver it to the circular coil 71, distributing the water flow to the perimeter of the slurry settling chamber 2. Then, it is sprayed into the perimeter of the inner wall of the slurry settling chamber 2, the top of the drive structure 3, and other places where sludge may accumulate through the high-pressure nozzle 72. While adding water to the slurry settling chamber 2, it also completes the cleaning work of the slurry settling chamber 2 and other mechanisms, realizing the recycling of cleaning fluid and saving water resources.

[0026] The specific working principle is as follows: Before the wet screening operation begins, a certain mass of ore sample is evenly placed on the sorting screen 4. During normal operation, water is injected into the slurry settling chamber 2 until it submerges the sorting screen 4, and the discharge valve 23 at its lower end is closed.

[0027] The dual-output motor 32 starts, and the main output shaft drives the offset plate 34 to rotate eccentrically. This rotation, via the mast 35, causes the sorting screen 4 to rotate eccentrically within the slurry settling chamber 2. During rotation, sludge smaller than the screen aperture size of the sorting screen 4 passes through the screen and moves towards the discharge valve 23; mineral particles larger than the screen aperture size remain on the screen, becoming the oversize product. The propeller 33 rotates under the drive of the auxiliary output shaft, stirring the slurry and accelerating the mixing of the flocculant and sludge, thereby accelerating the settling of the sludge.

[0028] After the minerals in the sorting screen 4 have been deslimed, turn off the double-ended output motor 32, remove the fastening nut 37 from the fine screw 36, and remove the sorting screen 4 from the slurry settling chamber 2 to harvest the deslimed minerals. The sludge in the slurry settling chamber 2 is allowed to settle. After settling, first open the drain valve 5 to discharge the supernatant in the slurry settling chamber 2 into the return replenishment tank 6, and then open the lower discharge valve 23 of the slurry settling chamber 2 to discharge the mineral sludge with relatively low water content. When performing the mineral desliming operation again, close the lower discharge valve 23 of the slurry settling chamber 2 and start the circulating cleaning system 7. The circulating pump 73 draws out the clean water from the return replenishment tank 6 and delivers it to the circular coil 71. Then, through multiple high-pressure nozzles 72, the cleaning water is sprayed at high pressure onto the residual sludge in the slurry settling chamber 2 for cleaning, while simultaneously replenishing the liquid level in the slurry settling chamber 2 to above the sorting screen 4.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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. Such 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 this utility model.

Claims

1. A laboratory mica fine mud settling wet screening machine, characterized in that: Includes the mounting bracket (1); Slurry settling chamber (2), the slurry settling chamber (2) is located on top of the fixed frame (1); The driving structure (3) is located inside the slurry settling chamber (2); The sorting screen (4) is connected to the drive structure and can rotate eccentrically in the slurry settling chamber (2); Drain valve (5), the drain valve (5) is located on the side wall of the slurry settling chamber (2); The reflux replenishment tank (6) is located below the slurry settling chamber (2) and is connected to the drain valve (5); The circulating cleaning system (7) is located between the top of the return liquid tank (6) and the top of the slurry settling chamber (2), and can transport the clean water in the return liquid tank (6) to the top of the slurry settling chamber (2).

2. The laboratory mica fine mud settling wet screening machine according to claim 1, characterized in that: The slurry settling chamber (2) includes a cylindrical section (21), in which the sorting screen (4) is installed and connected to the fixed frame (1) and the circulating cleaning system (7). The conical section (22) is coaxially disposed at the bottom of the cylindrical section (21), and the drain valve (5) is provided on the outer wall of the conical section (22). The discharge valve (23) is located at the bottom of the cone section (22).

3. A laboratory mica fine mud settling wet screening machine according to claim 2, characterized in that: The drive structure (3) includes a motor bracket (31), which is located at the top of the conical section (22); A dual-output motor (32) is mounted on the motor bracket (31); A deflection assembly is disposed between the main output shaft of the dual-end output motor (32) and the sorting screen (4).

4. A laboratory mica fine mud settling wet screening machine according to claim 3, characterized in that: The drive structure (3) also includes a propeller (33), which is coaxially connected to the auxiliary output shaft of the dual-end output motor (32).

5. A laboratory mica fine mud settling wet screening machine according to claim 3, characterized in that: The deflection assembly includes a bias plate (34), which is eccentrically connected to the main output shaft of the dual-output motor (32); Three masts (35) are arranged in a ring on the top of the bias plate (34) and are fixedly connected to the sorting screen (4).

6. A laboratory mica fine mud settling wet screening machine according to claim 5, characterized in that: The deflection assembly also includes a thin screw (36), which is coaxially mounted on the mast (35); A fastening nut (37) is screwed into the fine screw (36), and the sorting screen (4) is fastened between the fastening nut (37) and the fine screw (36).

7. A laboratory mica fine mud settling wet screening machine according to claim 1, characterized in that: The circulating cleaning system (7) includes a circular coil (71) which is installed on the top wall of the slurry settling chamber (2). Multiple high-pressure nozzles (72) are arranged in a ring on the top wall of the slurry settling chamber (2) and are all connected to the circular coil (71). A circulation pump (73) is located between the circular coil (71) and the reflux replenishment tank (6).

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