Dolomite tailings calcium magnesium efficient separation device

Abstract

The utility model discloses a dolomite tail ore calcium magnesium efficient separation device belongs to dolomite tail ore processing field, including processing box, the upper surface fixed connection of processing box has the broken mouth, the left side symmetry of broken mouth has the rubbing roller through the pivot rotation connection, the right side of broken mouth is provided with two gear, and the left side center of two gear is fixedly connected with the right side center of two rubbing roller respectively, through the biaxial motor drive rotating disc, drive the push rod and make the piston board slide up and down in the control box, utilize the gas hose control movable cavity in the left and right slide of movable board, and further make the screening board produce left and right vibration, can high -efficient automatic to the big granule residue after crushing produces and carries out screening, and through the design of the separation groove on the screening board cooperation fixed frame passes through the outlet, convenient big granule residue discharge recovery, has improved the utilization of tailing resources greatly.

Description

Technical Field

[0001] This utility model relates to the field of dolomite tailings treatment, and in particular to a high-efficiency calcium-magnesium separation device for dolomite tailings. Background Technology

[0002] Dolomite, a type of carbonate mineral with the chemical formula CaMg(CO3)2, is an important raw material for the preparation of calcium and magnesium chemical products. It is abundant in my country and widely distributed, covering almost all provinces and regions. It is now mainly used in refractory materials, chemical building materials, electrical insulation materials, sealing materials and other fields.

[0003] Before separating calcium and magnesium from existing dolomite tailings, they need to be crushed. However, existing separation devices cannot efficiently and automatically screen and recover large particles of residue. As a result, large particles of impurities interfere with the adhesion of dolomite tailings particles to bubbles, causing some dolomite tailings particles to float to the surface without timely attachment to bubbles. This leads to a decrease in flotation recovery rate and reduces the processing efficiency of dolomite tailings. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a solution to the problem that existing methods for separating calcium and magnesium from dolomite tailings cannot efficiently and automatically screen and recover large particles of residue generated after crushing, resulting in a decrease in flotation recovery rate and reduced processing efficiency of dolomite tailings.

[0005] Technical solution: A high-efficiency calcium-magnesium separation device for dolomite tailings includes a processing box. A crushing opening is fixedly connected to the upper surface of the processing box. Crushing rollers are symmetrically connected to the left side of the crushing opening via rotating shafts. Two gears are arranged on the right side of the crushing opening. The center of the left side of the two gears is fixedly connected to the center of the right side of the two crushing rollers, respectively. A dual-shaft motor is fixedly connected to the center of the right side of the gear located in front. A through-type conveying port is opened on the lower inner surface of the crushing opening. A screening chamber is integrally formed on the upper inner surface of the processing box.

[0006] Furthermore, a support base plate is fixedly connected to the lower surface of the processing box, and multiple support legs are fixedly connected to the lower surface of the support base plate.

[0007] Furthermore, a fixed frame is fixedly connected to the inner rear surface of the screening chamber, and a screening plate is provided on the upper surface of the fixed frame. Movable cavities are opened on both the inner left and inner right sides of the fixed frame. Movable plates are slidably connected inside the two movable cavities. Connecting plates are symmetrically fixedly connected to the opposite sides of the two movable plates. The side of the multiple connecting plates away from the two movable plates extends to the inner side of the fixed frame. The upper surface of the multiple connecting plates is fixedly connected to the lower surface of the screening plate with a fixing block.

[0008] Furthermore, a control box is fixedly connected to the upper right side of the processing box. A through-type clearance groove is opened on the upper inner surface of the control box. A piston plate is slidably connected inside the control box. A push rod is rotatably connected to the upper surface of the piston plate via a rotating shaft. The top end of the push rod passes through the clearance groove. A rotating disk is fixedly connected to the right end of the output shaft of the dual-axis motor. The upper right side of the rotating disk is movably connected to the upper left side of the push rod. An air supply hose is fixedly connected to the lower inner surface of the control box and the interior of the right-side movable cavity.

[0009] Furthermore, a calcination chamber is integrally formed at the lower interior of the processing box, and a heating box is provided on the lower interior surface of the calcination chamber. The upper surface of the heating box and the interior of the screening chamber are fixedly connected by a connecting pipe.

[0010] Furthermore, a mixing tank is fixedly connected to the right side of the upper surface of the supporting base plate, a feeding pipe is provided on the right side of the upper surface of the mixing tank, a conveying pipe is fixedly connected to the left side of the upper surface of the mixing tank, a fixing ring is fixedly connected inside the heating box, multiple suction ports are provided on the lower surface of the fixing ring, a dust pump is fixedly connected to the right side of the upper surface of the calcination chamber, the input end of the dust pump is connected to the inside of the fixing ring, the output end of the dust pump is connected to the conveying pipe, and a discharge pipe is provided on the lower right side of the mixing tank.

[0011] Furthermore, the front surface of the processing box is fixedly connected to an inspection door via a hinge.

[0012] Furthermore, a through-hole is provided on the left side of the screening chamber, the left side of the fixed frame passes through the through-hole, and a separation groove is provided on the left side of the upper surface of the screening plate.

[0013] Furthermore, a through-type exhaust port is provided on the left side of the interior of the active cavity located on the left side.

[0014] Beneficial effects: The rotating disk is driven by a dual-shaft motor, which drives the push rod to make the piston plate slide up and down in the control box. The moving plate in the moving chamber is controlled to slide left and right by the air supply hose, which in turn makes the screening plate vibrate left and right. It can efficiently and automatically screen the large particles of residue produced after crushing. At the same time, the separation groove on the screening plate, together with the design of the fixed frame passing through the protrusion, facilitates the discharge and recycling of large particles of residue, which greatly improves the utilization rate of tailings resources.

[0015] This device automates and seamlessly integrates a series of processes, including crushing, screening, calcination, conveying, and subsequent mixing and separation. The crushed material automatically falls into the screening chamber through the conveying port, and the screened material enters the calcination chamber through the connecting pipe. The calcined material is then sucked in by the dust pump through the fixed ring and suction port and conveyed to the mixing tank, reducing manual intervention and time loss in the material transfer process, and greatly improving the processing efficiency of dolomite tailings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the front section structure of the processing box, crushing port and control box of this utility model;

[0018] Figure 3 This is a utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This is a utility model Figure 2 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Processing box; 2. Crushing inlet; 3. Crushing roller; 4. Gear; 5. Dual-shaft motor; 6. Conveying inlet; 7. Screening chamber; 8. Support base plate; 9. Support leg; 10. Fixed frame; 11. Screening plate; 12. Movable chamber; 13. Movable plate; 14. Connecting plate; 15. Fixed block; 16. Control box; 17. Clearance groove; 18. Piston plate; 19. Push rod; 20. Rotary disc; 21. Calcination chamber; 22. Heating box; 23. Connecting pipe; 24. Mixing box; 25. Feeding pipe; 26. Conveying pipe; 27. Fixed ring; 28. Suction port; 29. ​​Dust pump; 30. Inspection door; 31. Outlet; 32. Separation tank; 33. Exhaust port; 34. Gas supply hose; 35. Discharge pipe. Detailed Implementation

[0021] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example

[0023] like Figure 1 As shown, a support base plate 8 is fixedly connected to the lower surface of the processing box 1, and multiple support legs 9 are fixedly connected to the lower surface of the support base plate 8.

[0024] By setting multiple support legs 9 and supporting base plate 8, the vibration generated during equipment operation can be buffered to a certain extent. When crushing and processing dolomite tailings, the multiple support legs 9 can absorb some vibration energy and reduce the transmission of vibration to the surrounding environment. This not only protects the equipment's own parts but also reduces interference with surrounding facilities and the working environment of operators.

[0025] like Figure 1 and Figure 2 As shown, a high-efficiency calcium-magnesium separation device for dolomite tailings is provided, including a processing box 1. A crushing port 2 is fixedly connected to the upper surface of the processing box 1. Crushing rollers 3 are symmetrically connected to the left side of the crushing port 2 via a rotating shaft. Two gears 4 are arranged on the right side of the crushing port 2. The center of the left side of the two gears 4 is fixedly connected to the center of the right side of the two crushing rollers 3 respectively. A dual-shaft motor 5 is fixedly connected to the center of the right side of the gear 4 located in front. A through-type conveying port 6 is opened on the lower inner surface of the crushing port 2. A screening chamber 7 is integrally formed on the upper inner surface of the processing box 1.

[0026] Dolomite tailings enter the device through crushing inlet 2. The dual-shaft motor 5 drives the connected gear 4 to rotate. Since the two gears 4 mesh with each other, the other gear 4 rotates synchronously, which controls the relative rotation of the two crushing rollers 3. The tailings are squeezed and crushed between the two relatively rotating crushing rollers 3. The crushed material falls into the screening chamber 7 inside the processing box 1 through the through-conveyor 6 on the lower surface of the crushing inlet 2 for screening. Thus, the two relatively rotating crushing rollers 3 can effectively squeeze and crush the dolomite tailings, adapting to the tailings processing needs of various particle sizes, ensuring that the tailings are fully crushed, and providing materials of suitable particle size for subsequent calcium and magnesium separation.

[0027] like Figures 2-4As shown, a fixed frame 10 is fixedly connected to the rear surface of the screening chamber 7. A screening plate 11 is provided on the upper surface of the fixed frame 10. Movable cavities 12 are provided on both the left and right sides of the fixed frame 10. Movable plates 13 are slidably connected inside each of the two movable cavities 12. Connecting plates 14 are symmetrically fixedly connected to opposite sides of the two movable plates 13. The sides of the multiple connecting plates 14 away from the two movable plates 13 extend to the inner side of the fixed frame 10. Fixed blocks 15 are fixedly connected to the lower surface of the screening plate 11 on the upper right side of the processing box 1. The control box 16 has a through-type clearance groove 17 on its upper internal surface. A piston plate 18 is slidably connected inside the control box 16. A push rod 19 is rotatably connected to the upper surface of the piston plate 18 via a rotating shaft. The top of the push rod 19 passes through the clearance groove 17. A rotating disk 20 is fixedly connected to the right end of the output shaft of the dual-axis motor 5. The upper right side of the rotating disk 20 is movably connected to the upper left side of the push rod 19. An air supply hose 34 is fixedly connected to the lower internal surface of the control box 16 and the inside of the right movable cavity 12. A through-type exhaust hole 33 is opened on the left side of the inside of the left movable cavity 12.

[0028] The crushed dolomite tailings fall into the screening chamber 7, where they are screened on the screening plate 11. While the dual-shaft motor 5 drives the two crushing rollers 3, the rotating disk 20 connected to the right end of its output shaft also rotates. As the rotating disk 20 rotates, it pushes the piston plate 18 up and down within the control box 16 via the push rod 19. When the piston plate 18 slides downwards, air in the control box 16 is forced into the right movable chamber 12 through the air supply hose 34, pushing the right movable plate 13 to slide to the left. When the piston plate 18 slides upwards, the air in the right movable chamber 12 flows back to the control box 16 through the air supply hose 34, causing the right movable plate 13 to slide to the right under the reset action. Simultaneously, the left movable chamber 12 communicates with the outside through the exhaust port 33. Driven by the right movable plate 13, the left movable plate 13... The screen plate 11 also slides left and right accordingly, causing it to vibrate left and right, thus screening the dolomite tailings. Large particles of residue remain on the screen plate 11, while fine particles fall below. On the one hand, the power of the dual-shaft motor 5 is used to convert the rotation of the motor into the left and right vibration of the screen plate 11 through the linkage of components such as the rotating disk 20, the push rod 19, and the piston plate 18. This eliminates the need for an additional vibration drive device, simplifying the equipment structure and reducing costs. On the other hand, the vibration of the screen plate 11 can improve screening efficiency, allowing fine particles in the dolomite tailings to pass through the screen plate 11 more quickly, avoiding insufficient screening due to material accumulation, ensuring screening effect, and providing more uniformly sized material for subsequent calcium and magnesium separation, which is beneficial to improving the working performance of the entire separation device.

[0029] like Figure 4As shown, a through-type extension 31 is provided on the left side of the screening chamber 7, the left side of the fixing frame 10 passes through the extension 31, and a separation groove 32 is provided on the left side of the upper surface of the screening plate 11.

[0030] During the screening process of crushed dolomite tailings, large particles of residue gradually move to the left under the vibration of the screening plate 11, eventually reaching the separation trough 32 opened on the left side of the upper surface of the screening plate 11. Finally, due to the inclined design of the separation trough 32, the large particles of residue naturally slide down the slope of the separation trough 32 under the action of gravity to the left side of the fixed frame 10, and are discharged to the outside of the device through the outlet 31. Thus, the large particles of tailings residue can be recycled and crushed again, thereby maximizing the utilization of resources.

[0031] like Figure 1 and Figure 2 As shown, a calcination chamber 21 is integrally formed at the lower part of the processing box 1. A heating box 22 is provided on the lower surface of the calcination chamber 21. A connecting pipe 23 is fixedly connected to the upper surface of the heating box 22 and the interior of the screening chamber 7. A mixing box 24 is fixedly connected to the right side of the upper surface of the support base plate 8. A feeding pipe 25 is provided on the right side of the upper surface of the mixing box 24. A conveying pipe 26 is fixedly connected to the left side of the upper surface of the mixing box 24. A fixing ring 27 is fixedly connected inside the heating box 22. Multiple suction ports 28 are provided on the lower surface of the fixing ring 27. A dust pump 29 is fixedly connected to the right side of the upper surface of the calcination chamber 21. The input end of the dust pump 29 is connected to the interior of the fixing ring 27. The output end of the dust pump 29 is connected to the conveying pipe 26. A discharge pipe 35 is provided on the lower right side of the mixing box 24.

[0032] After sieving, the powder falls into the heating chamber 22 through the connecting pipe 23. The dolomite powder is then calcined to induce a chemical change. After calcination, the dust pump 29 is activated, drawing the calcined material into the fixed ring 27 through multiple suction ports 28 on its lower surface. Since the output of the dust pump 29 is connected to the conveying pipe 26, the calcined material is transported to the mixing chamber 24 via the conveying pipe 26. Simultaneously, water and a modifier are added to the mixing chamber 24 through the feeding pipe 25. Inside the mixing chamber 24, the internal stirring device... The mixture of water, modifier, and calcined material is stirred to promote a full reaction. During the reaction, based on the different chemical properties of calcium and magnesium compounds, flotation foam rich in magnesium hydroxide and flotation tailings rich in calcium carbonate are produced. Finally, they are discharged through discharge pipe 35, thus cleverly separating magnesium hydroxide in the form of flotation foam and calcium carbonate in the form of flotation tailings. This achieves efficient separation of calcium and magnesium, improves the resource utilization rate of dolomite tailings, and provides high-quality raw materials for further processing and utilization of magnesium hydroxide and calcium carbonate, resulting in significant economic and environmental benefits.

[0033] like Figure 1 As shown, the front surface of the processing box 1 is fixedly connected to the inspection door 30 by a hinge;

[0034] The inspection door 30 allows for the inspection of core components inside the processing chamber 1, such as the fixed frame 10, screening plate 11 and its associated movable plate 13, connecting plate 14, etc. in the screening chamber 7, as well as the heating box 22 and fixing ring 27 in the calcination chamber 21. Maintenance personnel can closely inspect these components for wear, damage or loosening, and promptly repair or replace them to prevent minor faults from escalating into major problems and ensure the stable operation of the equipment.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for efficient separation of calcium and magnesium from dolomite tailings, comprising a processing tank (1), characterized in that: The upper surface of the processing box (1) is fixedly connected to a crushing port (2). The left side of the crushing port (2) is symmetrically connected to a crushing roller (3) via a rotating shaft. Two gears (4) are provided on the right side of the crushing port (2). The left center of the two gears (4) is fixedly connected to the right center of the two crushing rollers (3) respectively. A dual-shaft motor (5) is fixedly connected to the right center of the gear (4) located in front. A through-type conveying port (6) is opened on the lower inner surface of the crushing port (2). A screening chamber (7) is integrally formed on the upper inner surface of the processing box (1).

2. The device for efficient separation of calcium and magnesium from dolomite tailings according to claim 1, characterized in that: The lower surface of the processing box (1) is fixedly connected to a support base plate (8), and the lower surface of the support base plate (8) is fixedly connected to multiple support legs (9).

3. The device for efficient separation of calcium and magnesium from dolomite tailings according to claim 1, characterized in that: A fixed frame (10) is fixedly connected to the inner rear surface of the screening chamber (7). A screening plate (11) is provided on the upper surface of the fixed frame (10). Movable cavities (12) are opened on the inner left and inner right sides of the fixed frame (10). Movable plates (13) are slidably connected inside the two movable cavities (12). Connecting plates (14) are symmetrically fixedly connected to the opposite sides of the two movable plates (13). The side of the multiple connecting plates (14) away from the two movable plates (13) extends to the inner side of the fixed frame (10). The upper surface of the multiple connecting plates (14) is fixedly connected to the lower surface of the screening plate (11) with a fixing block (15).

4. The device for efficient separation of calcium and magnesium from dolomite tailings according to claim 3, characterized in that: A control box (16) is fixedly connected to the upper right side of the processing box (1). A through-type clearance groove (17) is opened on the upper inner surface of the control box (16). A piston plate (18) is slidably connected inside the control box (16). A push rod (19) is rotatably connected to the upper surface of the piston plate (18) through a rotating shaft. The top end of the push rod (19) passes through the clearance groove (17). A rotating disk (20) is fixedly connected to the right end of the output shaft of the dual-axis motor (5). The upper right side of the rotating disk (20) is movably connected to the upper left side of the push rod (19). A gas supply hose (34) is fixedly connected to the lower inner surface of the control box (16) and the inner interior of the right-side movable cavity (12).

5. The device for efficient separation of calcium and magnesium from dolomite tailings according to claim 2, characterized in that: The processing box (1) has an integrally formed calcination chamber (21) at the bottom inside. The calcination chamber (21) has a heating box (22) on its lower inner surface. The upper surface of the heating box (22) and the interior of the screening chamber (7) are fixedly connected by a connecting pipe (23).

6. The device for efficient separation of calcium and magnesium from dolomite tailings according to claim 5, characterized in that: A mixing tank (24) is fixedly connected to the right side of the upper surface of the supporting base plate (8). A feeding pipe (25) is provided on the right side of the upper surface of the mixing tank (24). A conveying pipe (26) is fixedly connected to the left side of the upper surface of the mixing tank (24). A fixing ring (27) is fixedly connected inside the heating box (22). A plurality of suction ports (28) are provided on the lower surface of the fixing ring (27). A dust pump (29) is fixedly connected to the right side of the upper surface of the calcination chamber (21). The input end of the dust pump (29) is connected to the inside of the fixing ring (27). The output end of the dust pump (29) is connected to the conveying pipe (26). A discharge pipe (35) is provided on the lower right side of the mixing tank (24).

7. The device for efficient separation of calcium and magnesium from dolomite tailings according to claim 1, characterized in that: The front surface of the processing box (1) is fixedly connected to an inspection door (30) by a hinge.

8. The device for efficient separation of calcium and magnesium from dolomite tailings according to claim 3, characterized in that: The screening chamber (7) has a through-hole (31) on the left side, the left side of the fixed frame (10) passes through the through-hole (31), and the upper surface of the screening plate (11) has a separation groove (32) on the left side.

9. The dolomite tailings calcium-magnesium high-efficiency separation device according to claim 3, characterized in that: A through-type exhaust port (33) is provided on the left side of the active cavity (12) located on the left side.

Images