A hydraulic dewatering machine for processing coal slime gasification slag
By using the spiral feeding and centrifugal extrusion technology of the hydraulic dewatering machine, the problems of land occupation and groundwater pollution in the treatment of coal gasification slag have been solved, and the stabilization treatment and rapid dewatering of coal slime gasification slag have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ORDOS JURIHUINENG THERMAL TECHNOLOGY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-30
AI Technical Summary
The existing methods for treating coal gasification slag are mainly landfilling and stockpiling, which leads to land occupation and groundwater pollution. Furthermore, the harmful heavy metals in the coal gasification slag cannot be stabilized.
Design a hydraulic dewatering machine that uses a screw feeder to evenly feed coal slime gasification slag, uses an extruder and centrifugal force to compress the coal slime gasification slag, and combines a negative pressure water suction machine for rapid dewatering to prevent heavy metal pollution.
It effectively reduces resource waste, prevents environmental pollution, achieves stable treatment of coal slime gasification slag, and reduces the risk of groundwater pollution.
Smart Images
Figure CN224426622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal gasification equipment technology, and in particular to a hydraulic dewatering machine for processing coal slime gasification slag. Background Technology
[0002] Coal slurry gasification slag is a solid waste generated during the coal gasification process. It contains a large amount of residual carbon, but because the carbon it contains has low activity, it cannot burn stably and continuously. Therefore, the current main methods for treating coal gasification slag are landfill and stockpiling. However, these two methods not only occupy a large amount of land, but also, because coal slurry gasification slag contains harmful heavy metals such as lead, cadmium, and arsenic, it will seep into groundwater bodies after long-term exposure, polluting groundwater. Therefore, it is necessary to carry out solidification, stabilization, or resource recovery methods to reduce its environmental risks. Utility Model Content
[0003] To address the drawback of landfilling and stockpiling coal gasification slag, where harmful components can seep into groundwater and pollute it after prolonged exposure, this invention provides a hydraulic dewatering machine for treating coal slime gasification slag.
[0004] The technical solution is as follows: A hydraulic dewatering machine for processing coal slime gasification slag includes a frame, a hydraulic press is installed on the upper part of the frame, a motor and a screw feeder are installed on the frame, the output shaft of the motor is fixedly connected to the rotating shaft of the screw feeder, a pressure sleeve base is rotatably connected to the frame, a pressure sleeve is slidably connected to the upper side of the pressure sleeve base, an annular feed sleeve is rotatably connected to the pressure sleeve, and the pressure sleeve and the annular feed sleeve are in communication, the feed port of the screw feeder is connected to the annular feed sleeve through a rubber hose, a rotating component is rotatably connected to the telescopic end of the hydraulic press, and an extrusion component is slidably connected to the lower side of the rotating component.
[0005] Furthermore, the bottom of the side wall of the pressure jacket and the base of the pressure sleeve are both provided with through holes that penetrate through them.
[0006] Furthermore, the lower part of the extrusion is set as a hemispherical shape, with its protruding side located on the lower side.
[0007] Furthermore, a hydraulic push rod is installed on the frame, and a connecting frame is fixedly connected to the telescopic end of the hydraulic push rod. The connecting frame is fixedly connected to the annular feed sleeve.
[0008] Furthermore, the frame is equipped with symmetrically distributed electric push rods, each with a push plate hinged to its telescopic end, and a torsion spring is installed between the telescopic end of the electric push rod and the adjacent push plate.
[0009] Furthermore, the connecting frame is equipped with a second motor, the output shaft of the second motor is fixedly connected to a first gear, and the outer side of the pressure jacket is fixedly connected to a second gear, with the first gear meshing with the second gear.
[0010] Furthermore, a sliding arm is slidably connected to the frame, the sliding arm is rotatably connected to the rotating component, and a spring connects the rotating component to the pressing component.
[0011] Furthermore, a water collection shell is fixedly connected to the connecting frame, and the water collection shell is rotatably connected to the pressure jacket. A water collection shell is fixedly connected to the lower side of the frame, and a negative pressure water suction machine is installed on the frame. Both the water collection shell and the water collection shell are connected to the negative pressure water suction machine through rubber hoses.
[0012] Furthermore, water collection shell one is located at the bottom of the outer wall of the pressure jacket, and the through hole at the bottom of the side wall of the pressure jacket is located inside water collection shell one; water collection shell two is located on the lower side of the pressure sleeve base, and the through hole at the bottom of the pressure sleeve base is located inside water collection shell two.
[0013] The beneficial effects are:
[0014] This invention uses an extruder to squeeze the coal slurry gasification slag inside the pressure jacket, thereby removing the moisture from the slurry gasification slag, reducing resource waste, and preventing environmental pollution.
[0015] This invention uses a motor to drive the pressure sleeve jacket to rotate the pressure sleeve base, changing the position of the coal slime gasification slag falling on the upper side of the pressure sleeve base. This ensures that the coal slime gasification slag inside the pressure sleeve is evenly distributed, preventing some coal slime gasification slag from being squeezed out by the extruder when the extruder squeezes the coal slime gasification slag inside the pressure sleeve due to uneven distribution.
[0016] This invention utilizes the centrifugal force generated by the rotation of the pressure jacket and pressure sleeve base to make the coal slime gasification slag more closely adhere to the inner wall of the pressure jacket. This shortens the distance between the coal slime gasification slag and the through hole at the bottom of the side wall of the pressure jacket, thereby accelerating the discharge of moisture from the coal slime gasification slag. Furthermore, the centrifugal force disperses the moisture in the center of the coal slime gasification slag to the surrounding areas, preventing the moisture in the center of the coal slime gasification slag from only moving downwards under the action of gravity. This avoids the situation where the coal slime gasification slag, compressed into a mud cake, becomes too dense inside, resulting in some moisture remaining in the center of the coal slime gasification slag.
[0017] This invention uses a downward-moving extruder to compress the coal slurry gasification slag that follows the upward movement of the pressure jacket, thus preventing coal slurry gasification slag from remaining on the pressure jacket. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0019] Figure 2 This is a three-dimensional structural diagram of the hydraulic press, motor, and screw feeder of this utility model.
[0020] Figure 3 This is a three-dimensional structural diagram of the pressure sleeve base, pressure sleeve, and annular feed sleeve of this utility model.
[0021] Figure 4 This is a three-dimensional structural diagram of the second motor, the first gear, and the second gear of this utility model.
[0022] Figure 5 This is an exploded view of the pressure sleeve base, pressure sleeve, and annular feed sleeve of this utility model.
[0023] Figure 6 This is a three-dimensional structural diagram of the water collection shell 1, water collection shell 2, and negative pressure water suction machine of this utility model.
[0024] The components in the attached diagram are labeled as follows: 1-Frame, 2-Hydraulic press, 3-Motor 1, 4-Screw feeder, 5-Pressure sleeve base, 6-Pressure sleeve, 7-Annular feed sleeve, 8-Rotating component, 9-Extrusion component, 10-Hydraulic push rod, 11-Connecting frame, 12-Electric push rod, 13-Push plate, 14-Motor 2, 15-Gear 1, 16-Gear 2, 17-Sliding arm, 18-Spring, 19-Water collection shell 1, 20-Water collection shell 2, 21-Negative pressure suction machine. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Example 1: A hydraulic dewatering machine for processing coal slime gasification slag, such as Figures 1-5 As shown, the device includes a frame 1, a hydraulic press 2 mounted on the upper part of the frame 1, a motor 3 and a screw feeder 4 mounted on the frame 1, the output shaft of the motor 3 being fixedly connected to the rotating shaft of the screw feeder 4, a pressure sleeve base 5 being rotatably connected to the frame 1, the pressure sleeve base 5 having a through hole, a pressure sleeve 6 being slidably connected to the upper side of the pressure sleeve base 5, the bottom of the side wall of the pressure sleeve 6 having a through hole, an annular feed sleeve 7 being rotatably connected to the pressure sleeve 6, and the pressure sleeve 6 communicating with the annular feed sleeve 7, the feed port of the screw feeder 4 communicating with the annular feed sleeve 7 via a rubber hose, a rotating component 8 being rotatably connected to the telescopic end of the hydraulic press 2, an extrusion component 9 being slidably connected to the lower side of the rotating component 8, the lower part of the extrusion component 9 being hemispherical, with its protruding side located on the lower side.
[0027] like Figure 2 and Figure 3As shown, a hydraulic push rod 10 is provided on the frame 1. The telescopic end of the hydraulic push rod 10 is fixedly connected to a connecting frame 11, and the connecting frame 11 is fixedly connected to the annular feed sleeve 7.
[0028] like Figure 1 and Figure 2 As shown, the frame 1 is provided with symmetrically distributed electric push rods 12. The telescopic ends of the electric push rods 12 are all hinged to push plates 13, and torsion springs are provided between the telescopic ends of the electric push rods 12 and the adjacent push plates 13.
[0029] like Figures 2-4 As shown, the connecting frame 11 is equipped with a second motor 14, and the output shaft of the second motor 14 is fixedly connected to a first gear 15. The outer side of the pressure sleeve 6 is fixedly connected to a second gear 16, and the first gear 15 meshes with the second gear 16.
[0030] like Figures 2-4 As shown, a sliding arm 17 is slidably connected to the frame 1. The sliding arm 17 is rotatably connected to the rotating part 8. A spring 18 is connected between the rotating part 8 and the pressing part 9.
[0031] When it is necessary to process coal slime gasification slag, the operator first starts motor 3 and motor 14. Then, the operator feeds the coal slime gasification slag into the screw feeder 4. The operation of motor 3 drives the screw feeder 4 to work, thereby feeding the coal slime gasification slag evenly into the pressure jacket 6 through the rubber hose and the annular feed sleeve 7, and falling on the upper side of the pressure sleeve base 5.
[0032] During the above process, motor 214 operates and drives pressure jacket 6 to rotate through gear 115 and gear 216. Pressure jacket 6 drives pressure sleeve base 5 to rotate. The rotation of pressure jacket 6 and pressure sleeve base 5 changes the position of coal slime gasification slag falling on the upper side of pressure sleeve base 5, thereby making the coal slime gasification slag in pressure jacket 6 evenly distributed. This prevents some coal slime gasification slag from being squeezed out by extruder 9 when extruding coal slime gasification slag in pressure jacket 6 due to uneven distribution.
[0033] During the process of coal slime gasification slag entering the pressure jacket 6, when the height of the coal slime gasification slag is below the connection between the pressure jacket 6 and the annular feed sleeve 7, the operator shuts off motor 3 to stop the conveying of coal slime gasification slag into the pressure jacket 6. At this time, the operator starts hydraulic press 2. The telescopic end of hydraulic press 2 drives rotating part 8 to move downward, rotating part 8 drives sliding arm 17 to move downward, and drives extrusion part 9 to move downward through spring 18 until the lower side of extrusion part 9 contacts the coal slime gasification slag in the pressure jacket 6. At this time, rotating part 8 and extrusion part 9 are relatively displaced, and spring 18 is compressed. When spring 18 can no longer be compressed, extrusion part 9 begins to squeeze the coal slime gasification slag in the pressure jacket 6, squeezing out the water in the coal slime gasification slag.
[0034] During the process of the coal slime gasification slag entering the pressure jacket 6 and the extrusion component 9 extruding the coal slime gasification slag, both the pressure jacket 6 and the pressure sleeve base 5 rotate, which in turn drives the coal slime gasification slag inside the pressure jacket 6 to rotate. This generates centrifugal force, which facilitates the discharge of moisture from the coal slime gasification slag at the following two angles:
[0035] 1. During the process of coal slime gasification slag entering the pressure jacket 6, the centrifugal force generated by the rotation of the pressure jacket 6 and the pressure jacket base 5 makes the coal slime gasification slag fit more closely to the inner wall of the pressure jacket 6, thus shortening the distance between the coal slime gasification slag and the through hole at the bottom of the side wall of the pressure jacket 6, thereby accelerating the discharge speed of water in the coal slime gasification slag.
[0036] 2. During the process of extruding coal slime gasification slag by extruder 9, the coal slime gasification slag is squeezed into a mud cake under the extrusion action of extruder 9. At this time, the centrifugal force causes the water in the center of the coal slime gasification slag to disperse to the surrounding area, avoiding the water in the center of the coal slime gasification slag from only moving downward under the action of gravity. As a result, the coal slime gasification slag that has been squeezed into a mud cake is too full, causing some water to remain in the center of the coal slime gasification slag.
[0037] After draining the water from the coal slurry gasification slag, the operator shuts down the hydraulic press 2 and motor 2 14, and starts the four hydraulic push rods 10. The telescopic ends of the four hydraulic push rods 10 together drive the annular feed sleeve 7 to move upward through the connecting frame 11. The annular feed sleeve 7 drives the pressure jacket 6 to move upward. At this time, under the squeezing action of the extruder 9, the coal slurry gasification slag in the pressure jacket 6 does not move until there is no residual coal slurry gasification slag in the pressure jacket 6. Then the operator shuts down the four hydraulic push rods 10.
[0038] During the above process, if some of the coal slime gasification residue moves upward with the pressure jacket 6, the extruder 9 moves downward under the action of the spring 18 to extrude the coal slime gasification residue that moves upward with the pressure jacket 6, thus preventing coal slime gasification residue from remaining in the pressure jacket 6.
[0039] As the pressure jacket 6 moves upward, when the lower side of the pressure jacket 6 is higher than the upper side of the pusher plate 13, the extruder 9 moves downward rapidly under the action of the spring 18 and extrudes the coal slime gasification slag that follows the pressure jacket 6 upward.
[0040] When the spring 18 is fully extended, the operator shuts off the four hydraulic push rods 10 and starts the two electric push rods 12. The telescopic ends of the two electric push rods 12 drive the adjacent push plates 13 to move to the right, pushing away the coal slurry gasification slag on the upper side of the pressure sleeve base 5 that has been squeezed out of water. Then the telescopic ends of the two electric push rods 12 are reset. The operator shuts off the two electric push rods 12 and starts the four hydraulic push rods 10. The telescopic ends of the four hydraulic push rods 10 work together to drive the pressure sleeve 6 to move downward and reset. After the pressure sleeve 6 is reset, the four hydraulic push rods 10 are shut off.
[0041] Then, the operator starts the hydraulic press 2. The telescopic end of the hydraulic press 2 drives the extrusion piece 9 to move upward and reset. After the extrusion piece 9 is reset, the hydraulic press 2 is shut down to wait for the next processing of coal slime gasification slag.
[0042] Example 2: Based on Example 1, such as Figure 3 , Figure 4 and Figure 6 As shown, a water collection shell 19 is fixedly connected to the connecting frame 11. The water collection shell 19 is rotatably connected to the pressure jacket 6. The water collection shell 19 is located at the bottom of the outer wall of the pressure jacket 6, and the through hole at the bottom of the side wall of the pressure jacket 6 is located inside the water collection shell 19. A water collection shell 20 is fixedly connected to the lower side of the frame 1. The water collection shell 20 is located at the lower side of the pressure sleeve base 5, and the through hole at the bottom of the pressure sleeve base 5 is located inside the water collection shell 20. A negative pressure water suction machine 21 is installed on the frame 1. Both the water collection shell 19 and the water collection shell 20 are connected to the negative pressure water suction machine 21 through rubber hoses.
[0043] When the operator starts motor 214, the negative pressure water suction machine 21 is started simultaneously. The negative pressure water suction machine 21 works by creating negative pressure in water collection shell 19 and water collection shell 20 through two rubber hoses, thereby accelerating the discharge of water from the coal slurry gasification slag. At the same time, the water discharged from the coal slurry gasification slag is collected through water collection shell 19 and water collection shell 20. When the water collected in water collection shell 19 and water collection shell 20 reaches a certain amount, the operator processes the water collected in water collection shell 19 and water collection shell 20 until the operator turns off motor 21, at which time the negative pressure water suction machine 21 is turned off simultaneously.
[0044] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.
Claims
1. A hydraulic dewatering machine for processing coal slime gasification slag, characterized in that: It includes a frame (1), a hydraulic press (2) is installed on the upper part of the frame (1), a motor (3) and a screw feeder (4) are installed on the frame (1), the output shaft of the motor (3) is fixedly connected to the rotating shaft of the screw feeder (4), the frame (1) is rotatably connected to a pressure sleeve base (5), a pressure sleeve outer sleeve (6) is slidably connected to the upper side of the pressure sleeve base (5), a ring feed sleeve (7) is rotatably connected to the pressure sleeve outer sleeve (6), and the pressure sleeve outer sleeve (6) is connected to the ring feed sleeve (7). The feed port of the screw feeder (4) is connected to the ring feed sleeve (7) through a rubber hose. A rotating part (8) is rotatably connected to the telescopic end of the hydraulic press (2), and an extrusion part (9) is slidably connected to the lower side of the rotating part (8).
2. A hydraulic dewatering machine for processing coal slime gasification slag according to claim 1, characterized in that: The bottom of the side wall of the pressure jacket (6) and the pressure sleeve base (5) are both provided with through holes that penetrate through them.
3. A hydraulic dewatering machine for processing coal slime gasification slag according to claim 1, characterized in that: The lower part of the extrusion (9) is set as a hemispherical shape, and its protruding side is located on the lower side.
4. A hydraulic dewatering machine for processing coal slime gasification slag according to claim 1, characterized in that: A hydraulic push rod (10) is provided on the frame (1). A connecting frame (11) is fixedly connected to the telescopic end of the hydraulic push rod (10). The connecting frame (11) is fixedly connected to the annular feed sleeve (7).
5. A hydraulic dewatering machine for processing coal slime gasification slag according to claim 4, characterized in that: The frame (1) is equipped with symmetrically distributed electric push rods (12). The telescopic ends of the electric push rods (12) are all hinged to push plates (13), and torsion springs are provided between the telescopic ends of the electric push rods (12) and the adjacent push plates (13).
6. A hydraulic dewatering machine for processing coal slime gasification slag according to claim 4, characterized in that: The connecting frame (11) is equipped with a second motor (14), and the output shaft of the second motor (14) is fixedly connected to a first gear (15). The outer side of the pressure jacket (6) is fixedly connected to a second gear (16), and the first gear (15) meshes with the second gear (16).
7. A hydraulic dewatering machine for processing coal slime gasification slag according to claim 3, characterized in that: A sliding arm (17) is slidably connected to the frame (1). The sliding arm (17) is rotatably connected to the rotating part (8). A spring (18) is connected between the rotating part (8) and the pressing part (9).
8. A hydraulic dewatering machine for processing coal slime gasification slag according to claim 6, characterized in that: A water collection shell 1 (19) is fixedly connected to the connecting frame (11). The water collection shell 1 (19) is rotatably connected to the pressure jacket (6). A water collection shell 2 (20) is fixedly connected to the lower side of the frame (1). A negative pressure water suction machine (21) is installed on the frame (1). Both the water collection shell 1 (19) and the water collection shell 2 (20) are connected to the negative pressure water suction machine (21) through rubber hoses.
9. A hydraulic dewatering machine for processing coal slime gasification slag according to claim 8, characterized in that: Water collecting shell one (19) is located at the bottom of the outer wall of the pressure jacket (6), and the through hole at the bottom of the side wall of the pressure jacket (6) is located inside the water collecting shell one (19). Water collecting shell two (20) is located on the lower side of the pressure sleeve base (5), and the through hole at the bottom of the pressure sleeve base (5) is located inside the water collecting shell two (20).