Efficient gasified slag washing and selecting device

Abstract

The invention relates to the technical field of coal dressing, in particular to an efficient gasified slag washing device which comprises a straight barrel, the lower end of the straight barrel is fixedly connected with a conical barrel, a tangential feeding mechanism is arranged on the outer surface of the straight barrel, a top plate is fixedly installed at the upper end of the straight barrel, and an overflow pipe fixedly penetrates through the upper surface of the top plate; the outer surface of the overflow pipe is rotationally sleeved with an outer rotating ring, the outer surface of the outer rotating ring is fixedly connected with a plurality of flow guide blocks arranged in an annular array, and the inner wall of the overflow pipe is rotationally connected with an inner rotating ring. The purpose of assisting liquid in the overflow pipe to flow is achieved, the overflow effect is improved, excessive large particles or fibrous substances are effectively prevented from being adhered to a port, smoothness of the overflow pipe is ensured, the overflow effect is improved, part of coal slurry is guided by the flow guide block and then obliquely moves towards the inner wall of the straight cylinder, and the centrifugal rotational flow effect is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal separation, in particular to a high-efficiency gasification slag washing device. Background Art

[0002] Coal fume slag washing is a crucial step in realizing its resource utilization. Coal fume slag typically contains a variety of useful components, including unreacted carbon, silicon, aluminum, and iron. The primary purpose of washing is to separate and purify these components, enabling resource recycling while also reducing environmental pollution.

[0003] During washing, the fumed slag undergoes pretreatment, such as crushing and screening, to reduce its particle size to an appropriate range. The slag is then mixed with water to form a coal slurry, which is then separated by a cyclone. The cyclone classifies the different particles in the fumed slag based on their size and density. Typically, coarse and dense particles are flung toward the cyclone walls by centrifugal force, moving downward along the walls and out of the underflow outlet. Fine and less dense particles, on the other hand, move upward with the central liquid flow and out of the overflow outlet. This method achieves a preliminary separation of particles of varying sizes and densities, providing more targeted raw materials for subsequent washing operations.

[0004] During the washing process, the gasification slag contains large particles or fibrous substances, which are prone to clogging at the overflow pipe. In addition, during the washing process, the coal slurry concentration is not fixed. In actual production, it will fluctuate due to various factors. When the concentration increases, the viscosity of the coal slurry increases, the fluidity deteriorates significantly, and the flow resistance in the cyclone increases significantly, resulting in a decrease in the overflow pipe flow rate. When the concentration decreases, the coal slurry density decreases, the effect of the centrifugal force in the cyclone changes, and it also affects the overflow pipe flow rate. The more frequent the concentration fluctuations, the more difficult it is to stably control the flow rate. The existing technology does not have a technical solution to assist overflow. In addition, in this process, due to the high-speed rotation of the coal slurry and the complex flow field distribution, part of the coal slurry will inevitably collide with the overflow pipe. This collision will affect the separation effect of the cyclone. Therefore, a high-efficiency gasification slag washing device is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a high-efficiency gasification slag washing device.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: an efficient gasification slag washing device, comprising a straight cylinder, the lower end of the straight cylinder is fixedly connected to a conical cylinder, the outer surface of the straight cylinder is provided with a tangential feeding mechanism, the upper end of the straight cylinder is fixedly installed with a top plate, the upper surface of the top plate is fixedly penetrated by an overflow pipe, the outer surface of the overflow pipe is rotatably sleeved with an outer rotating ring, the outer surface of the outer rotating ring is fixedly connected with a plurality of guide blocks arranged in a ring array, the inner wall of the overflow pipe is rotatably connected with an inner rotating ring, a transmission mechanism is provided between the outer rotating ring and the inner rotating ring, the lower side of the inner rotating ring is fixedly connected with a plurality of rotating plates, the lower end of the rotating plate is fixedly connected with a connecting hook, the connecting hook is sleeved on the lower port of the overflow pipe, the outer surface of the rotating plate is slidably inserted with a guide plate through a tightening mechanism, and the upper end of the guide plate is provided with a pushing mechanism; When the tangential feeding mechanism feeds, the coal slurry pushes the guide block to rotate the outer rotating ring, the transmission mechanism drives the inner rotating ring to rotate, and the guide plate rotates to guide the liquid to flow upward.

[0007] Preferably, the tangential feeding mechanism includes a tangential opening that penetrates and is opened on the outer surface of the straight cylinder, a feed pipe is fixedly inserted into the port of the tangential opening, one end of the feed pipe is fixedly inserted into the inner side of the tangential opening, and a sealing plate is fixedly installed on the other end of the feed pipe, a feed connecting tube is fixedly inserted into the outer surface of the sealing plate, and the upper surface of the feed pipe is fixedly connected to the lower surface of the top plate.

[0008] Preferably, the upper and lower edges of the inner wall of the outer rotating ring are respectively fixedly connected with a first convex ring, and the first convex ring is rotatably embedded in the outer surface of the straight cylinder. The lower edge of the outer surface of the inner rotating ring is fixedly connected with a second convex ring, and the second convex ring is rotatably embedded in the inner wall of the straight cylinder.

[0009] Preferably, the transmission mechanism includes a transmission roller rotatably embedded in the outer surface of the straight cylinder, the upper and lower surfaces of the transmission roller are respectively fixedly connected with roller shafts, the roller shaft is rotatably embedded in the interior of the straight cylinder, and the outer surface of the transmission roller is in contact with the outer rotating ring and the inner rotating ring on both sides respectively.

[0010] Preferably, the tensioning mechanism includes a slot provided on the outer surface of the rotating plate, the guide plate is slidably inserted into the inner side of the slot, and a plurality of springs are fixedly connected between the inner wall of the slot and the guide plate.

[0011] Preferably, the pushing mechanism includes a sliding groove provided on the upper side of the rotating plate, a connecting block is fixedly connected between the upper end of the rotating plate and the lower end of the inner rotating ring, an L-shaped block is slidably inserted into the inner side of the sliding groove, a pushing surface is provided on the lower surface of the L-shaped block, and two symmetrical top inclined surfaces are provided on the upper surface of the L-shaped block, and a contact strip extending upward is fixedly connected to the side end of the L-shaped block, and the inner wall of the overflow pipe is connected to the pushing ring through a lifting mechanism, and the upper end of the contact strip is in sliding contact with the lower end of the pushing ring, and a reserved groove is provided on the outer surface of the pushing ring, and the upper end of the inner rotating ring slides into the inner side of the reserved groove.

[0012] Preferably, the lifting mechanism includes a distance-adjusting groove provided at the upper end of the outer surface of the overflow pipe, a lifting plate is slidably inserted into the inner side of the distance-adjusting groove, one end of the lifting plate is fixedly connected to the outer surface of the pushing ring, the lower surface of the lifting plate is fixedly connected to the telescopic end of the hydraulic cylinder, the outer surface of the overflow pipe is fixedly sleeved with a flange, the flange is fixedly mounted on the upper surface of the top plate, and the lower end of the hydraulic cylinder is fixedly connected to the upper surface of the flange.

[0013] Preferably, no less than two mounting seats are fixedly mounted on the outer surface of the straight cylinder, and an overflow butt joint is fixedly mounted on the upper port of the overflow pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the coal slurry contacts the guide block, the outer rotating ring will rotate, which in turn will cause the transmission roller to rotate. The transmission roller will cause the inner rotating ring to rotate. When the internal rotating plate rotates, the liquid will be guided to flow upward, thereby achieving the purpose of assisting the flow of liquid in the overflow pipe and improving the overflow effect. 2. When the inner rotating ring rotates, the connecting hook will rotate along with the lower port of the overflow pipe, cleaning the lower port of the overflow pipe, effectively preventing excessive large particles or fibrous substances from adhering to the port, ensuring the smooth flow of the overflow pipe and improving the overflow effect; 3. In the present invention, part of the coal slurry is guided by the guide block and moves obliquely toward the inner wall of the straight cylinder, which effectively improves the centrifugal vortex effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a high-efficiency gasification slag washing device of the present invention; Figure 2 This is a cross-sectional view of a high-efficiency gasification slag washing device according to the present invention; Figure 3 This is a cross-sectional view of the overflow pipe of a high-efficiency gasification slag washing device of the present invention; Figure 4 This invention is a high-efficiency gasification slag washing device Figure 3 Enlarged view of point A in the middle; Figure 5 This invention is a high-efficiency gasification slag washing device Figure 3 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of a rotating plate of a high-efficiency gasification slag washing device according to the present invention; Figure 7 This is a cross-sectional view of a rotating plate of a high-efficiency gasification slag washing device according to the present invention; Figure 8 This invention is a high-efficiency gasification slag washing device Figure 7 Enlarged view of point C in the middle; Figure 9 This invention is a high-efficiency gasification slag washing device Figure 7 Enlarged view of point D in the middle; Figure 10 This is a cross-sectional view of the straight cylinder and conical cylinder of a high-efficiency gasification slag washing device of the present invention.

[0016] Among them: 1. Straight cylinder; 2. Feed pipe; 3. Tangential port; 4. Top plate; 5. Overflow pipe; 6. Outer rotating ring; 7. Guide block; 8. First convex ring; 9. Inner rotating ring; 10. Second convex ring; 11. Drive roller; 12. Roller shaft; 13. Connecting block; 14. Rotating plate; 15. Connecting hook; 16. Slot; 17. Guide plate; 18. Spring; 19. Sliding groove; 20. L-shaped block; 21. Top inclined surface; 22. Pushing surface; 23. Contact strip; 24. Pushing ring; 25. Reserved groove; 26. Lifting plate; 27. Hydraulic cylinder; 28. Distance adjustment groove; 29. Conical cylinder; 30. Mounting seat; 31. Overflow butt pipe; 32. Closing plate; 33. Feed butt pipe; 34. Flange. DETAILED DESCRIPTION

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0018] like Figures 1-10The shown device is a high-efficiency gasification slag washing device, comprising a straight cylinder 1, the lower end of the straight cylinder 1 is fixedly connected to a conical cylinder 29, the outer surface of the straight cylinder 1 is provided with a tangential feeding mechanism, the upper end of the straight cylinder 1 is fixedly installed with a top plate 4, the upper surface of the top plate 4 is fixedly penetrated by an overflow pipe 5, the outer surface of the overflow pipe 5 is rotatably sleeved with an outer rotating ring 6, the outer surface of the outer rotating ring 6 is fixedly connected to a plurality of guide blocks 7 arranged in a ring array, the inner wall of the overflow pipe 5 is rotatably connected to an inner rotating ring 9, a transmission mechanism is provided between the outer rotating ring 6 and the inner rotating ring 9, the lower side of the inner rotating ring 9 is fixedly connected to a plurality of rotating plates 14, the lower end of the rotating plate 14 is fixedly connected to a connecting hook 15, the connecting hook 15 is sleeved on the lower port of the overflow pipe 5, the outer surface of the rotating plate 14 is slidably inserted with a guide plate 17 through a tensioning mechanism, and the upper end of the guide plate 17 is provided with a pushing mechanism; When the tangential feeding mechanism feeds, the coal slurry pushes the guide block 7 to rotate the outer rotating ring 6, the transmission mechanism drives the inner rotating ring 9 to rotate, and the guide plate 17 rotates to guide the liquid to flow upward.

[0019] like Figure 1 、 Figure 2 As shown, the tangential feed mechanism includes a tangential port 3 extending through the outer surface of the straight cylinder 1. A feed pipe 2 is fixedly mounted at the end of the tangential port 3. One end of the feed pipe 2 is fixedly inserted into the inner side of the tangential port 3. A sealing plate 32 is fixedly mounted at the other end of the feed pipe 2. A feed butt joint 33 is fixedly mounted on the outer surface of the sealing plate 32. The upper surface of the feed pipe 2 is fixedly connected to the lower surface of the top plate 4. The tangential port 3 and the feed pipe 2 guide the coal slurry into the straight cylinder 1 along a tangential direction, causing it to swirl along the inner wall of the straight cylinder 1.

[0020] like Figure 3 、 Figure 5 As shown, the upper and lower edges of the inner wall of the outer rotating ring 6 are respectively fixedly connected to a first protruding ring 8, which is rotatably mounted on the outer surface of the straight tube 1. The lower edge of the outer surface of the inner rotating ring 9 is fixedly connected to a second protruding ring 10, which is rotatably mounted on the inner wall of the straight tube 1. When the outer rotating ring 6 rotates, the first protruding ring 8 rotates on the surface of the straight tube 1, and the second protruding ring 10 rotates on the inner wall of the straight tube 1. It should be noted that in order to reduce the wear of the first and second protruding rings 8, 10 on the straight tube 1 during rotation, a retainer and balls can be provided between the first and second protruding rings 8 and the straight tube 1, and between the second and second protruding rings 10 and the straight tube 1, to reduce wear.

[0021] The transmission mechanism includes a drive roller 11 rotatably mounted on the outer surface of the cylinder 1. A roller shaft 12 is fixedly connected to the upper and lower surfaces of the drive roller 11. The roller shaft 12 is rotatably mounted within the cylinder 1. The outer surfaces of the drive roller 11 contact the outer rotating ring 6 and the inner rotating ring 9 on both sides. The drive roller 11 is a metal roller with a rubber sheath fixed on its surface to increase friction during contact and ensure smooth transmission between the outer rotating ring 6 and the inner rotating ring 9.

[0022] like Figure 7 、 Figure 9 As shown, the tensioning mechanism includes a slot 16 formed on the outer surface of the rotating plate 14. A guide plate 17 is slidably inserted into the inner side of the slot 16. A plurality of springs 18 are fixedly connected between the inner wall of the slot 16 and the guide plate 17. The springs 18 provide a tensile force, which tends to move the guide plate 17 toward the inner side of the slot 16.

[0023] like Figure 6 、 Figure 7 、 Figure 8 As shown, the pushing mechanism includes a sliding groove 19 formed on the upper side of the rotating plate 14. A connecting block 13 is fixedly connected between the upper end of the rotating plate 14 and the lower end of the inner rotating ring 9. An L-shaped block 20 is slidably inserted into the inner side of the sliding groove 19. The lower surface of the L-shaped block 20 has a pushing surface 22, and the upper surface of the L-shaped block 20 has two symmetrical top inclined surfaces 21. The side ends of the L-shaped block 20 are fixedly connected to contact strips 23 extending upward. The inner wall of the overflow pipe 5 is connected to a pushing ring 24 via a lifting mechanism. The upper end of the contact strip 23 slides in contact with the lower end of the pushing ring 24. The outer surface of the pushing ring 24 has a reserved groove 25, and the upper end of the inner rotating ring 9 slides into the inner side of the reserved groove 25. The two symmetrical top inclined surfaces 21 can break up the coal slurry and prevent the coal slurry from getting stuck between the upper end of the L-shaped block 20 and the lower end of the inner rotating ring 9. It should be noted that the upper end of the contact strip 23 can be slidably embedded in the ball, which effectively reduces the degree of wear when in contact with the pushing ring 24.

[0024] like Figure 3 、 Figure 4 As shown, the lifting mechanism includes a pitch-adjusting slot 28 defined at the upper end of the outer surface of the overflow pipe 5. A lifting plate 26 is slidably inserted into the inner side of the pitch-adjusting slot 28. One end of the lifting plate 26 is fixedly connected to the outer surface of the pushing ring 24, and the lower surface of the lifting plate 26 is fixedly connected to the telescopic end of the hydraulic cylinder 27. A flange 34 is fixedly sleeved on the outer surface of the overflow pipe 5. The flange 34 is fixedly mounted on the upper surface of the top plate 4, and the lower end of the hydraulic cylinder 27 is fixedly connected to the upper surface of the flange 34. The flange 34 facilitates stable installation between the overflow pipe 5 and the top plate 4. When the hydraulic cylinder 27 is extended or retracted, the lifting plate 26 can slide up and down along the inner side of the pitch-adjusting slot 28.

[0025] like Figure 1 As shown, the outer surface of the straight tube 1 is fixedly mounted with no less than two mounting seats 30, and the upper end of the overflow pipe 5 is fixedly mounted with an overflow butt joint 31. The overflow butt joint 31 is used to connect the delivery pipeline to deliver the overflow into the overflow tank.

[0026] During use, the coal slurry delivered by the slurry pump is fed in through the feed docking pipe 33, and after passing through the feed pipe 2, it enters the inner side of the straight cylinder 1 from the tangential direction. Most of the coal slurry flows along the inner wall of the straight cylinder 1, and part of the coal slurry is guided by the guide block 7 and moves obliquely toward the inner wall of the straight cylinder 1, which effectively improves the centrifugal vortex effect. Under the action of the coal slurry's own gravity, the coal slurry spirals downward, and the coarse particles and particles with higher density will be thrown to the inner wall of the cone cylinder 29 under the action of centrifugal force, and move downward along the inner wall of the cone cylinder 29 and flow out from the lower port, while the fine particles and particles with lower density will move upward with the central liquid flow and flow out from the overflow pipe 5.

[0027] When the coal slurry contacts the guide block 7, the outer rotating ring 6 will rotate, and then the transmission roller 11 will rotate. The transmission roller 11 will rotate the inner rotating ring 9. When the internal rotating plate 14 rotates, the liquid will be guided to flow upward, thereby achieving the purpose of assisting the flow of liquid in the overflow pipe 5 and improving the overflow effect.

[0028] When the inner rotating ring 9 rotates, the connecting hook 15 will rotate along with the lower port of the overflow pipe 5, cleaning the lower port of the overflow pipe 5, effectively avoiding excessive adhesion of large particles or fibrous substances at the port, ensuring the smooth flow of the overflow pipe 5, and improving the overflow effect.

[0029] By controlling the hydraulic cylinder 27 to contract, the lifting plate 26 slides down along the inner side of the distance adjustment groove 28, thereby causing the pushing ring 24 to move downward. The pushing ring 24 squeezes the contact strip 23, causing the L-shaped block 20 to slide down along the inner side of the sliding groove 19. The pushing surface 22 squeezes the upper end of the guide plate 17, pushing the guide plate 17 toward the outside of the slot 16, and pulling the spring 18 apart, changing the exposed area of the guide plate 17, thereby changing the effect of guiding the liquid in the overflow pipe 5 to flow upward, making the control more flexible, and preventing excessive overflow from being guided, which would cause poor cyclone separation effect.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency gasification slag washing device, comprising a straight cylinder (1), characterized in that: The lower end of the straight cylinder (1) is fixedly connected to a conical cylinder (29), the outer surface of the straight cylinder (1) is provided with a tangential feeding mechanism, the upper end of the straight cylinder (1) is fixedly mounted with a top plate (4), the upper surface of the top plate (4) is fixedly penetrated by an overflow pipe (5), the outer surface of the overflow pipe (5) is rotatably sleeved with an outer rotating ring (6), the outer surface of the outer rotating ring (6) is fixedly connected to a plurality of guide blocks (7) arranged in a ring array, the inner wall of the overflow pipe (5) is rotatably connected to the outer wall of the overflow pipe (5) An inner rotating ring (9) is connected, a transmission mechanism is provided between the outer rotating ring (6) and the inner rotating ring (9), a plurality of rotating plates (14) are fixedly connected to the lower side of the inner rotating ring (9), a connecting hook (15) is fixedly connected to the lower end of the rotating plate (14), and the connecting hook (15) is sleeved on the lower end of the overflow pipe (5), and a guide plate (17) is slidably inserted on the outer surface of the rotating plate (14) through a tensioning mechanism, and a pushing mechanism is provided on the upper end of the guide plate (17); When the tangential feeding mechanism feeds, the coal slurry pushes the guide block (7) to rotate the outer rotating ring (6), the transmission mechanism drives the inner rotating ring (9) to rotate, and the guide plate (17) rotates to guide the liquid to flow upward.

2. The high-efficiency gasification slag washing device according to claim 1, characterized in that: The tangential feeding mechanism comprises a tangential opening (3) extending through the outer surface of the straight cylinder (1); a feeding pipe (2) is fixedly inserted into the end of the tangential opening (3); one end of the feeding pipe (2) is fixedly inserted into the inner side of the tangential opening (3); a sealing plate (32) is fixedly installed on the other end of the feeding pipe (2); a feeding butt pipe (33) is fixedly inserted into the outer surface of the sealing plate (32); and the upper surface of the feeding pipe (2) is fixedly connected to the lower surface of the top plate (4).

3. The high-efficiency gasification slag washing device according to claim 1, characterized in that: The upper and lower edges of the inner wall of the outer rotating ring (6) are respectively fixedly connected to first convex rings (8), and the first convex ring (8) is rotatably embedded in the outer surface of the straight cylinder (1). The lower edge of the outer surface of the inner rotating ring (9) is fixedly connected to a second convex ring (10), and the second convex ring (10) is rotatably embedded in the inner wall of the straight cylinder (1).

4. The high-efficiency gasification slag washing device according to claim 1, characterized in that: The transmission mechanism comprises a transmission roller (11) rotatably embedded in the outer surface of the straight cylinder (1), the upper and lower surfaces of the transmission roller (11) are respectively fixedly connected to roller shafts (12), the roller shaft (12) is rotatably embedded in the interior of the straight cylinder (1), and both sides of the outer surface of the transmission roller (11) are in contact with the outer rotating ring (6) and the inner rotating ring (9) respectively.

5. The high-efficiency gasification slag washing device according to claim 1, characterized in that: The tensioning mechanism comprises a slot (16) provided on the outer surface of the rotating plate (14); the guide plate (17) is slidably inserted into the inner side of the slot (16); and a plurality of springs (18) are fixedly connected between the inner wall of the slot (16) and the guide plate (17).

6. The high-efficiency gasification slag washing device according to claim 1, characterized in that: The pushing mechanism includes a sliding groove (19) provided on the upper side of the rotating plate (14), a connecting block (13) is fixedly connected between the upper end of the rotating plate (14) and the lower end of the inner rotating ring (9), an L-shaped block (20) is slidably inserted into the inner side of the sliding groove (19), a pushing surface (22) is provided on the lower surface of the L-shaped block (20), two symmetrical top inclined surfaces (21) are provided on the upper surface of the L-shaped block (20), a contact strip (23) extending upward is fixedly connected to the side end of the L-shaped block (20), the inner wall of the overflow pipe (5) is connected to the pushing ring (24) through a lifting mechanism, the upper end of the contact strip (23) is in sliding contact with the lower end of the pushing ring (24), the outer surface of the pushing ring (24) is provided with a reserved groove (25), and the upper end of the inner rotating ring (9) is slidably engaged with the inner side of the reserved groove (25).

7. The high-efficiency gasification slag washing device according to claim 6, characterized in that: The lifting mechanism includes a distance-adjusting groove (28) provided at the upper end of the outer surface of the overflow pipe (5), a lifting plate (26) is slidably inserted into the inner side of the distance-adjusting groove (28), one end of the lifting plate (26) is fixedly connected to the outer surface of the pushing ring (24), the lower surface of the lifting plate (26) is fixedly connected to the telescopic end of the hydraulic cylinder (27), the outer surface of the overflow pipe (5) is fixedly sleeved with a flange (34), the flange (34) is fixedly mounted on the upper surface of the top plate (4), and the lower end of the hydraulic cylinder (27) is fixedly connected to the upper surface of the flange (34).

8. The high-efficiency gasification slag washing device according to claim 1, characterized in that: No less than two mounting seats (30) are fixedly mounted on the outer surface of the straight cylinder (1), and an overflow butt joint pipe (31) is fixedly mounted on the upper end of the overflow pipe (5).

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