Pretreatment equipment for municipal solid waste

Abstract

The utility model relates to pretreatment equipment for municipal solid waste, which comprises a rack, a plurality of uniformly distributed spiral screen rollers are arranged in the rack, the spiral screen rollers are fixedly mounted on the rack through screen roller bearing seats, the screen roller bearing seats are fixedly arranged on the outer wall of one side of the rack, and the screen roller bearing seats are fixedly arranged on the outer wall of the other side of the rack. A sliding groove is formed in the outer wall of the machine frame, a shaft groove is formed in the outer wall of the machine frame, a rotating shaft at one end of the spiral screen roller penetrates through the sliding groove to be movably connected with the screen roller bearing seat in an inserted connection mode, a sliding groove is further fixedly formed in the outer wall of the machine frame, the sliding groove is located below the shaft groove, and a sliding block is arranged in the sliding groove in a sliding mode. According to the pretreatment equipment for the municipal solid waste, the distance between the spiral screen rollers is adjusted through sliding of the sliding blocks in the sliding grooves, so that the screening particle size is adjusted, the spiral screen rollers can be prevented from falling off in the adjusting process, meanwhile, the pretreatment equipment is suitable for transmission between the adjusted spiral screen rollers through adjustment of the transmission gears, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of solid waste treatment equipment, specifically a pretreatment device for urban solid waste. Background Technology

[0002] Urban solid waste refers to waste generated in urban areas from daily life and commercial activities. This waste mainly comes from non-industrial activities such as residential life, commercial activities, street cleaning, markets, and office spaces.

[0003] With the acceleration of urbanization, the amount of urban solid waste is constantly increasing, posing a huge challenge to urban management.

[0004] Screening is a crucial step in waste pretreatment. Spiral screens are highly effective and efficient screening tools, widely used for screening construction waste, aged waste, and mixed waste. Existing spiral screens typically use gears to drive the spiral rollers, but this method makes the spacing between the rollers non-adjustable, thus preventing adjustment of the screening particle size. Installing a separate motor on each spiral roller would significantly increase production costs, and the heavy motors would make adjustment difficult.

[0005] Therefore, there is an urgent need for a pretreatment device for municipal solid waste that allows for easy adjustment of the screening particle size. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a pretreatment device for urban solid waste that is easy to adjust the screening particle size.

[0007] The purpose of this utility model is achieved as follows:

[0008] A pretreatment device for municipal solid waste includes a frame. Multiple evenly distributed spiral screen rollers are arranged inside the frame. The spiral screen rollers are fixedly mounted on the frame via screen roller bearing seats. The screen roller bearing seats are fixedly mounted on the outer wall of one side of the frame, and a shaft groove is formed on the outer wall of the frame. A rotating shaft at one end of each spiral screen roller passes through the shaft groove and is movably connected to the screen roller bearing seat via an insertion connection. A sliding groove is also fixedly provided on the outer wall of the frame, located below the shaft groove, and a slider is slidably disposed within the sliding groove. The slider is fixedly connected to the screen roller bearing seat. A gear is fixedly mounted on the rotating shaft at one end of each spiral screen roller. A side frame for supporting a drive motor is fixedly mounted on the outer wall of one side of the frame. The drive motor meshes with a gear on one of the spiral screen rollers via a drive gear at its output end, and the gears on adjacent spiral screen rollers mesh with the same transmission gear.

[0009] Preferably, the transmission gear is fixedly mounted on the slide block via a bearing seat, the slide block is fixedly mounted on the transverse slide rail in a slidable manner, a vertical slide rail is fixedly mounted on the side frame, and both ends of the transverse slide rail are fixedly mounted on the vertical slide rail in a slidable manner.

[0010] Preferably, multiple slide blocks are provided on the transverse slide rail, and adjacent slide blocks are connected by a positioning device.

[0011] Preferably, the positioning device includes two positioning plates, one end of which is movably connected by a rotating shaft, and the other end of which is movably connected to two slides respectively. The positioning plates are provided with a plurality of evenly distributed positioning holes.

[0012] Preferably, the positioning device further includes a connecting rod, with insert rods fixedly provided at the bottom of both ends of the connecting rod, and the insert rods at both ends of the connecting rod are respectively inserted into the positioning holes on the two positioning plates.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model relates to a pretreatment equipment for urban solid waste. By setting a sliding groove on the outer wall of the frame, and the screen roller bearing seat is slidably installed in the sliding groove by a slider, the distance between the spiral screen rollers can be adjusted by sliding the slider along the sliding groove, thereby adjusting the screening particle size. The slider also supports and limits the screen roller bearing seat, preventing the spiral screen roller from falling off during the adjustment process, and facilitating operation.

[0015] 2. This utility model discloses a pretreatment device for urban solid waste. The device is fixedly mounted on a horizontal slide rail in a slidable manner by a sliding block, and the two ends of the horizontal slide rail are fixedly mounted on a vertical slide rail in a slidable manner. The distance between the transmission gears is adjusted by sliding the sliding block, and the installation height of the transmission gears is adjusted by sliding the horizontal slide rail. This allows the transmission gears to be reinstalled between the two adjusted gears for transmission, in order to adapt to different screening particle sizes.

[0016] 3. This utility model discloses a pretreatment device for urban solid waste. It connects two adjacent slides through a positioning device and sets a connecting rod on the positioning device. The connecting rod supports the two positioning plates and fixes the opening and closing angle of the two positioning plates, thereby fixing the distance between two adjacent slides and ensuring that the distance between all slides is equal, thus ensuring the overall stability and facilitating adjustment and operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a pretreatment equipment for urban solid waste according to this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the side frame of a pretreatment equipment for urban solid waste according to this utility model.

[0019] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the chute of a pretreatment equipment for urban solid waste according to this utility model.

[0021] Figure 5 This is an exploded structural diagram of a positioning device for a pretreatment equipment for urban solid waste according to this utility model.

[0022] The components include: frame 1, spiral screen roller 2, screen roller bearing seat 3, shaft groove 4, slide groove 5, slider 6, slider 6, gear 7, drive motor 8, side frame 9, drive gear 10, transmission gear 11, slide block 12, transverse slide rail 13, vertical slide rail 14, positioning device 15, positioning plate 15.1, positioning hole 15.2, connecting rod 15.3, and insertion rod 15.4. Detailed Implementation

[0023] See Figures 1 to 5 This utility model relates to a pretreatment equipment for urban solid waste, including a frame 1. Multiple evenly distributed spiral screen rollers 2 are arranged inside the frame 1. The spiral screen rollers 2 are fixedly mounted on the frame 1 via screen roller bearing seats 3. The screen roller bearing seats 3 are fixedly located on the outer wall of one side of the frame 1, and a shaft groove 4 is formed on the outer wall of the frame 1. The rotating shaft at one end of the spiral screen roller 2 passes through the groove 4 and is movably connected to the screen roller bearing seat 3 by an insertion connection. A groove 5 is also fixedly provided on the outer wall of the frame 1, located below the shaft groove 4. A slider 6 is slidably arranged within the groove 5, and the slider 6 is fixedly connected to the screen roller bearing seat 3. By sliding the slider 6 along the groove 5, the distance between the spiral screen rollers 2 is adjusted, thereby adjusting the screening particle size. Figure 4 As shown, the slide groove 5 limits the slider 6, so the slider 6 also supports and limits the screen roller bearing seat 3, preventing the spiral screen roller 2 from falling off during the adjustment process and facilitating operation.

[0024] A gear 7 is fixedly installed on the shaft at one end of the spiral screen roller 2. A side frame 9 for supporting the drive motor 8 is fixedly installed on the outer wall of one side of the frame 1. The drive motor 8 meshes with the gear 7 on one of the spiral screen rollers 2 through the drive gear 10 at the output end, and the gears 7 on two adjacent spiral screen rollers 2 mesh with the same transmission gear 11.

[0025] To ensure the normal operation of the device after the spiral screen roller 2 is adjusted, the transmission gear 11 is fixedly mounted on the slide block 12 through the bearing seat. The slide block 12 is slidably connected to the transverse slide rail 13 and is fixed by bolts, so that the slide block 12 is fixedly mounted on the transverse slide rail 13 in a slidable manner. The distance between the transmission gears 11 is adjusted by sliding the slide block 12. A vertical slide rail 14 is fixedly mounted on the side frame 9. The two ends of the crossbeam slide rail 13 are slidably connected to the vertical slide rail 14 through sliding seats and are fixed by bolts, so that the transverse slide rail 13 is fixedly mounted on the vertical slide rail 14 in a slidable manner. The installation height of the transmission gear 11 is adjusted by sliding the transverse slide rail 13, so that the transmission gear 11 can be reinstalled between the two gears 7 after adjustment for transmission, in order to adapt to different screening particle sizes.

[0026] To ensure the overall stability of the spiral screen rollers 2 after the spacing is adjusted, multiple slide blocks 12 are provided on the transverse slide rail 13, and adjacent slide blocks 12 are connected by a positioning device 15. The positioning device 15 includes two positioning plates 15.1. One end of the two positioning plates 15.1 is movably connected by a rotating shaft. The opening and closing of the two positioning plates 15.1 is realized by rotating one end, thereby adjusting the spacing between the other ends of the two positioning plates 15.1. The other ends of the two positioning plates 15.1 are movably connected to the two slide blocks 12 respectively.

[0027] Furthermore, the positioning device 15 also includes a connecting rod 15.3, with insert rods 15.4 fixedly installed at the bottom of both ends of the connecting rod 15.3. The positioning plate 15.1 has multiple evenly distributed positioning holes 15.2. The insert rods 15.4 at both ends of the connecting rod 15.3 are respectively inserted into the positioning holes 15.2 on the two positioning plates 15.1. The insertion of the insert rods 15.4 at both ends of the connecting rod 15.3 into two different positioning holes 15.2 can obtain different opening and closing angles of the two positioning plates 15.1.

[0028] In addition, the connecting rod 15.3 supports the two positioning plates 15.1 to fix the opening and closing angle of the two positioning plates 15.1, thereby fixing the distance between two adjacent slides 12, ensuring that the distance between all slides 12 is equal, thus ensuring the overall stability and facilitating adjustment.

[0029] The working principle of this utility model for a pretreatment device for urban solid waste is as follows: When it is necessary to adjust the spacing between the spiral screen rollers 2, loosen the fixing bolts of the fixed screen roller bearing seat 3 and remove the insertion rod 15.4 of the positioning device 15. Move the spiral screen roller 2 to a suitable position by sliding the slider 6. Then slide the slide block 12 on the transverse slide rail 13 to adjust the spacing between the transmission gears 11. Fix the opening and closing angle of the positioning plate 15.1 with the insertion rod 15.4, thereby adjusting all adjacent slide blocks 12 to the same spacing. Raise the height of the transmission gear 11 by sliding the transverse slide rail 13 upward, so that the transmission gear 11 meshes with the gear 7 on the adjusted spiral screen roller 2, and the drive motor 8 drives the spiral screen roller 2 to rotate through the drive gear 10.

[0030] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A pretreatment device for municipal solid waste, characterized in that: The machine includes a frame (1), inside which are arranged multiple evenly distributed spiral screen rollers (2). The spiral screen rollers (2) are fixedly mounted on the frame (1) via screen roller bearing seats (3). The screen roller bearing seats (3) are fixedly mounted on the outer wall of one side of the frame (1), and a shaft groove (4) is provided on the outer wall of the frame (1). The rotating shaft at one end of the spiral screen roller (2) passes through the shaft groove (4) and is movably connected to the screen roller bearing seat (3) by a plug-in connection. A sliding groove (5) is also fixedly provided on the outer wall of the frame (1), and the sliding groove (5) is located in the shaft groove (4). Below the spiral screen roller (2), a slider (6) is slidably arranged in the groove (5). The slider (6) is fixedly connected to the screen roller bearing seat (3). A gear (7) is fixedly arranged on the rotating shaft at one end of the spiral screen roller (2). A side frame (9) for supporting the drive motor (8) is fixedly arranged on the outer wall of one side of the frame (1). The drive motor (8) meshes with the gear (7) on one of the spiral screen rollers (2) through the drive gear (10) at the output end. The gears (7) on two adjacent spiral screen rollers (2) mesh with the same transmission gear (11).

2. The pretreatment equipment for municipal solid waste according to claim 1, characterized in that: The transmission gear (11) is fixedly mounted on the slide (12) via a bearing seat. The slide (12) is fixedly mounted on the transverse slide rail (13) in a slidable manner. A vertical slide rail (14) is fixedly mounted on the side frame (9), and both ends of the transverse slide rail (13) are fixedly mounted on the vertical slide rail (14) in a slidable manner.

3. The pretreatment equipment for municipal solid waste according to claim 2, characterized in that: Multiple slide blocks (12) are provided on the transverse slide rail (13), and adjacent slide blocks (12) are connected by a positioning device (15).

4. The pretreatment equipment for municipal solid waste according to claim 3, characterized in that: The positioning device (15) includes two positioning plates (15.1), one end of the two positioning plates (15.1) is movably connected by a rotating shaft, and the other end of the two positioning plates (15.1) is movably connected to two slides (12) respectively. The positioning plates (15.1) are provided with a plurality of evenly distributed positioning holes (15.2).

5. A pretreatment device for municipal solid waste according to claim 4, characterized in that: The positioning device (15) further includes a connecting rod (15.3), and the bottom of both ends of the connecting rod (15.3) is fixedly provided with insert rods (15.4). The insert rods (15.4) at both ends of the connecting rod (15.3) are respectively inserted into the positioning holes (15.2) on the two positioning plates (15.1).

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