A domestic waste incineration power generation slag drum screening device
By incorporating a rotatable sleeve and spring rod vibration design, the problems of screen hole clogging and adjustment in the slag drum screening device are solved, achieving the dual functions of screening and unloading, and improving screening efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANTOU HENGJIAN HEATING CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-08-04
AI Technical Summary
The existing slag drum screening device has screen holes that are prone to clogging and cannot be adjusted, resulting in low screening efficiency and failing to achieve the dual functions of screening and unloading.
By designing a rotatable sleeve, the screen holes on the sleeve and the screening drum can be adjusted to be staggered. Combined with the vibration of the spring rod and the cooperation of the servo motor drive block, the screen holes can be automatically adjusted and cleaned to avoid clogging.
It improves screening efficiency, reduces screen clogging, enables flexible adjustment of screen size and effective material discharge, and enhances the screening effect of the device.
Smart Images
Figure CN224586367U_ABST
Abstract
Description
Technical Field
[0001] This utility model application relates to the technical field of slag drum screening devices, specifically to a slag drum screening device for municipal solid waste incineration power generation. Background Technology
[0002] Slag drum screening devices are key equipment in the field of industrial solid waste treatment, mainly used for the efficient grading of slag generated in industries such as metallurgy and power. This device adopts an inclined cylindrical drum structure with multiple layers of screens. Driven by a motor, the drum rotates at low speed, utilizing centrifugal force and gravity to achieve material grading. Slag drum screening devices are primarily used for screening slag from municipal solid waste incineration power generation. Their core function is to separate the slag according to particle size through a mechanical structure, facilitating subsequent resource utilization or harmless treatment.
[0003] The existing screening devices have a single function and cannot achieve the dual functions of screening and unloading; in the screening process, the screen holes are prone to clogging, affecting the screening efficiency. Therefore, a drum screening device for municipal solid waste incineration power generation slag is proposed. Utility Model Content
[0004] To address the aforementioned problems, a drum screening device for slag from municipal solid waste incineration power generation is provided. By rotating a sleeve, the sleeve can rotate around the central axis of the screening drum. As the sleeve rotates, the screen holes on the sleeve and the screening drum gradually become misaligned, thereby adjusting the size of the screen holes. This solves the problem of the inability to adjust the screen holes in slag drum screening devices.
[0005] To address the problems of existing technologies, this application provides a drum screening device for municipal solid waste incineration power generation slag, comprising a base, a rotatable screening section disposed on the top of the base, a cleaning section fixed to the top of the base for cleaning the surface of the screening section, and a base disposed at the bottom of the base for support. The screening section includes a screening drum rotatably mounted on the top of the base, with a first gear for transmission fixed at one end of the screening drum; a sleeve is rotatably mounted outside the screening drum, and both the screening drum and the sleeve have screen holes arranged in a circular array; both the screening drum and the sleeve have inlet and outlet ports at the same end, and a cover plate is fixed at the inlet and outlet ports on the sleeve.
[0006] As one technical solution of this application, a connecting block is welded to one end of the sleeve, and a locking screw is threaded onto the connecting block. A cylindrical rod-shaped holding rod is welded to the right end face of the screening roller.
[0007] As one technical solution of this application, a collection seat is fixed on the base body by a screw. The collection seat is located below the sleeve and is fixed in an inclined position.
[0008] As one technical solution of this application, the left end face of the screening roller is welded with protrusions in an annular array, and the protrusions are hemispherical structures; a spring rod is fixed on the left end face of the inner wall of the seat, and the extended end of the spring rod contacts the left end face of the screening roller.
[0009] As one technical solution of this application, the cleaning part includes mounting arms that are equidistantly fixed to the top of the base. One end of the mounting arm is fixed with an arc-shaped plate-like cleaning block, and the inner arc surface of the cleaning block contacts the outer wall of the base. All the cleaning blocks are aligned with the sieve holes.
[0010] As one technical solution of this application, the base is placed on the ground, and an auxiliary part is installed on the base. The auxiliary part includes a servo motor fixed on the base, and a drive block that can contact the bottom of the base is fixed on the output shaft of the servo motor.
[0011] As one technical solution of this application, a limit rod is longitudinally fixed on the lower end face of the base near the servo motor; a limit member capable of limiting the limit rod is longitudinally fixed on the upper end face of the base, the limit rod is installed inside the limit member, and the two sides of the limit rod are in contact with the inner wall of the limit member.
[0012] The advantages of this utility model application compared to the prior art are: 1. This application utilizes a rotating sleeve to allow it to rotate around the central axis of the screening drum. As the sleeve rotates, the screen holes on the sleeve and the screening drum gradually become misaligned, thereby adjusting the size of the screen holes. This solves the problem of the inability to adjust the screen holes in slag drum screening devices; 2. When the screening drum rotates, the extended end of the spring rod vibrates in continuous elastic contact with the hemispherical protrusion, which can accelerate the screening of slag and reduce screen hole clogging; the servo motor of the auxiliary part drives the drive block to drive the seat to move up and down reciprocally, further enhancing the screening effect. Attached Figure Description
[0013] Figure 1 A schematic diagram of the three-dimensional structure of a drum screening device for slag from a municipal solid waste incineration power plant. Figure 1 ; Figure 2 A schematic diagram of the three-dimensional structure of a drum screening device for slag from a municipal solid waste incineration power plant. Figure 2 ; Figure 3 This is a partial cross-sectional view of a drum screening device for slag from a municipal solid waste incineration power plant. Figure 4 This is an exploded view of the screening section in a drum screening device for slag from a municipal solid waste incineration power plant. Figure 5 yes Figure 1 Enlarged view of point A in the image; Figure 6 yes Figure 2 Enlarged view of point B in the image.
[0014] The following are the labels in the diagram: 1. Base; 101. Limiting rod; 2. Screening section; 201. Screening roller; 202. First gear; 203. Motor; 204. Second gear; 205. Sleeve; 206. Collection seat; 207. Protrusion; 208. Spring rod; 209. Connecting block; 210. Locking screw; 211. Holding rod; 3. Screen hole; 4. Cleaning section; 401. Mounting arm; 402. Cleaning block; 5. Base; 6. Auxiliary section; 601. Servo motor; 602. Drive block; 7. Limiting component. Detailed Implementation
[0015] To further understand the features, technical means, and specific objectives and functions achieved by this utility model application, the following detailed description of this utility model application is provided in conjunction with the accompanying drawings and specific embodiments.
[0016] See Figures 1-6 As shown, a drum screening device for municipal solid waste incineration power generation slag includes a base 1, a rotatable screening section 2 disposed on the top of the base 1, a cleaning section 4 fixed to the top of the base 1 for cleaning the surface of the screening section 2, and a base 5 disposed at the bottom of the base 1 for support. The screening section 2 includes a screening drum 201 rotatably mounted on the top of the base 1, and a first gear 202 for transmission is fixed at one end of the screening drum 201. A sleeve 205 is rotatably mounted on the outside of the screening drum 201. Screen holes 3 are arranged in a circular array on both the screening drum 201 and the sleeve 205. Inlet and outlet ports are opened at the same end of both the screening drum 201 and the sleeve 205. A cover plate is fixed at the inlet and outlet port of the sleeve 205.
[0017] A motor 203 is fixed near the top of one side of the base 1. A second gear 204, capable of meshing with a first gear 202, is fixed to the output end of the motor 203. When the motor 203 starts, it drives the second gear 204 to rotate, which in turn drives the screening drum 201 to rotate via the meshing first gear 202. Simultaneously, the rotation of the screening drum 201 causes the sleeve 205 to rotate synchronously, allowing the slag to be screened through the screen holes 3 on the screening drum 201 and sleeve 205. To adjust the size of the screen holes 3, the sleeve 205 is rotated around the central axis of the screening drum 201. As the sleeve 205 rotates, the screen holes 3 on the sleeve 205 and the screening drum 201 gradually shift, thus adjusting the size of the screen holes 3. This solves the problem of the inability to adjust the screen holes 3 in the slag drum screening device.
[0018] See Figure 3As shown, a connecting block 209 is welded to one end of the sleeve 205, and a locking screw 210 is threaded onto the connecting block 209. A cylindrical rod-shaped holding rod 211 is welded to the right end face of the screening roller 201.
[0019] To achieve a stable connection between the sleeve 205 and the screening roller 201, a connecting block 209 is fixed to one end of the sleeve 205, and a rotatable locking screw 210 is installed on the connecting block 209. When the locking screw 210 is rotated, one end of the locking screw 210 can contact or separate from one end of the screening roller 201. When one end of the locking screw 210 contacts the screening roller 201, the locking screw 210 locks the sleeve 205 and the screening roller 201. When the locking screw 210 separates from the screening roller 201, the sleeve 205 can rotate around the central axis of the screening roller 201.
[0020] See Figure 3 As shown, a collection seat 206 is fixed on the base 1 by a screw. The collection seat 206 is located below the sleeve 205 and is fixed at an angle.
[0021] When the screening drum 201 and the sleeve 205 screen the slag, the slag inside the screening drum 201 and the sleeve 205 will fall into the collection seat 206 through the screen holes 3, and the slag will slide down the collection seat 206 at an incline. This achieves effective material discharge and avoids material accumulation.
[0022] See Figure 3 As shown, the left end face of the screening roller 201 has protrusions 207 welded in a ring array, and the protrusions 207 are hemispherical structures; a spring rod 208 is fixed on the left end face of the inner wall of the base 1, and the extended end of the spring rod 208 is in contact with the left end face of the screening roller 201.
[0023] When the screening drum 201 rotates, the extended end of the spring rod 208 is in continuous elastic contact with the protrusion 207. This continuous elastic contact between the extended end of the spring rod 208 and the protrusion 207 causes the screening drum 201 and the sleeve 205 to vibrate. This improves the screening efficiency of the screening drum 201 and the sleeve 205 and reduces the likelihood of clogging of the screen holes 3.
[0024] See Figure 1 , Figure 2 and Figure 3 As shown, the cleaning part 4 includes a mounting arm 401 that is fixed at equal intervals to the top of the base 1. One end of the mounting arm 401 is fixed with an arc-shaped plate-like cleaning block 402. The inner arc-shaped surface of the cleaning block 402 contacts the outer wall of the sleeve 205. All cleaning blocks 402 are aligned with the sieve holes 3.
[0025] When the screening drum 201 drives the sleeve 205 to rotate, the cleaning block 402 can clean the surface of the sleeve 205, effectively preventing the screen holes 3 on the screening drum 201 and the sleeve 205 from becoming clogged, thereby ensuring the screening efficiency of the slag drum screening device.
[0026] See Figure 3 As shown, the base 5 is placed on the ground, and an auxiliary part 6 is installed on the base 5. The auxiliary part 6 includes a servo motor 601 fixed on the base 5. A drive block 602 that can contact the bottom of the base 1 is fixed on the output shaft of the servo motor 601.
[0027] The drive block 602 is located below the base 1. When the servo motor 601 rotates, the drive block 602 contacts the lower end face of the base 1, causing the base 1 to move up and down reciprocally under the drive of the drive block 602, further enhancing the screening effect. During unloading, the servo motor 601 stops running. At this time, the drive block 602 disengages from the screening roller 201, and one end of the screening roller 201 moves downward, making the end of the screening roller 201 with the inlet and outlet lower than the other end. At this time, the screening roller 201 is in an inclined state. When the screening roller 201 rotates, the residual material inside the screening roller 201 gradually approaches the inlet and outlet under the action of centrifugal force and its own gravity. When the residual material reaches the inlet and outlet, it can be smoothly discharged through the inlet and outlet, achieving effective discharge of the residual material.
[0028] See Figure 3 As shown, a limit rod 101 is longitudinally fixed on the side of the lower end face of the base 1 near the servo motor 601; a limit member 7 that can limit the limit rod 101 is longitudinally fixed on the upper end face of the base 5. The limit rod 101 is installed inside the limit member 7, and the two sides of the limit rod 101 are in contact with the inner wall of the limit member 7.
[0029] When the seat 1 moves longitudinally, the limiting rod 101 at the bottom of the seat 1 moves longitudinally along the interior of the limiting member 7, thereby limiting the limiting rod 101 by the limiting member 7. This allows the limiting rod 101 and the limiting member 7 to cooperate in limiting the seat 1, effectively preventing the seat 1 from shifting. This ensures the stability of the seat 1.
[0030] The above embodiments only illustrate one or more implementation methods of this utility model application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model application, and these all fall within the protection scope of this utility model application. Therefore, the protection scope of this utility model application should be determined by the appended claims.
Claims
1. A drum screening device for municipal solid waste incineration power generation slag, comprising a base (1), a rotatable screening section (2) disposed on the top of the base (1), a cleaning section (4) fixed to the top of the base (1) for cleaning the surface of the screening section (2), and a base (5) disposed at the bottom of the base (1) for support, characterized in that: The screening unit (2) includes a screening roller (201) rotatably mounted on the top of the base (1), with a first gear (202) fixed at one end of the screening roller (201) for transmission; a sleeve (205) is rotatably mounted outside the screening roller (201), and screen holes (3) are arranged in a circular array on both the screening roller (201) and the sleeve (205); inlet and outlet ports are provided at the same end of both the screening roller (201) and the sleeve (205), and a [missing information] is fixed at the inlet and outlet ports on the sleeve (205). Cover plate; a collection seat (206) is fixed on the seat (1) by a screw, the collection seat (206) is located below the sleeve (205), and the collection seat (206) is fixed in an inclined position; the left end face of the screening roller (201) is welded with protrusions (207) in an annular array, and the protrusions (207) are hemispherical structures; a spring rod (208) is fixed on the left end face of the inner wall of the seat (1), and the extended end of the spring rod (208) is in contact with the left end face of the screening roller (201).
2. The municipal solid waste incineration power generation slag drum screening device as described in claim 1, characterized in that: A connecting block (209) is welded to one end of the sleeve (205), and a locking screw (210) is threaded onto the connecting block (209). A cylindrical rod-shaped holding rod (211) is welded to the right end face of the screening roller (201).
3. The municipal solid waste incineration power generation slag drum screening device as described in claim 1, characterized in that: The cleaning part (4) includes mounting arms (401) fixed at equal intervals on the top of the base (1). One end of the mounting arm (401) is fixed with an arc-shaped plate-shaped cleaning block (402). The inner arc surface of the cleaning block (402) contacts the outer wall of the sleeve (205). The cleaning blocks (402) are all aligned with the sieve holes (3).
4. The municipal solid waste incineration power generation slag drum screening device as described in claim 1, characterized in that: The base (5) is placed on the ground, and an auxiliary part (6) is installed on the base (5). The auxiliary part (6) includes a servo motor (601) fixed on the base (5). A drive block (602) that can contact the bottom of the seat (1) is fixed on the output shaft of the servo motor (601).
5. The municipal solid waste incineration power generation slag drum screening device as described in claim 4, characterized in that: A limit rod (101) is longitudinally fixed on the side of the lower end face of the base (1) near the servo motor (601); a limit member (7) that can limit the limit rod (101) is longitudinally fixed on the upper end face of the base (5). The limit rod (101) is installed inside the limit member (7), and the two sides of the limit rod (101) are in contact with the inner wall of the limit member (7).