Refuse bin percolate grating dredging device

Abstract

The utility model discloses a garbage bin percolate grating dredging device which comprises an outer frame, a shaft sleeve is installed on the inner wall of the side, close to a grate, of the outer frame, a shaft sleeve hole is consistent with an open hole in a grate plate, a plurality of dredging columns are connected between the shaft sleeve and the grate in a penetrating mode, one end of each dredging column is inserted into the shaft sleeve, and the other end of each dredging column is connected with a dredging trolley. The other end of the dredging trolley is connected with a hydraulic cylinder, and the hydraulic cylinder is connected with a hydraulic station of an original garbage bin discharging door and a control system of the hydraulic station. The dredging device is simple in structure and convenient to install, the shaft sleeve is arranged on the outer frame, the guiding function and the auxiliary dredging column supporting function are achieved, the situation that a sliding guide rail is independently arranged is avoided, and the overall structure is simple; meanwhile, the original grate plate does not need to be replaced, the detachable outer frame is convenient to transport to a channel, and the installation is convenient and simple; the device is simple in structure, low in material consumption and low in manufacturing cost; and the original discharge door hydraulic station and the control cabinet are utilized, so that the equipment cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dredging device, especially a garbage bin leachate grid dredging device. BACKGROUND

[0002] Garbage produces leachate in the process of storage and fermentation in the garbage bin, so a grid grate is arranged at the bottom of the garbage bin to discharge the leachate. Because the garbage is stored for a long time, the garbage is easy to block the leachate grate, and the leachate forms a "water pit" in the garbage bin and cannot be discharged smoothly. This results in high water content of the garbage, poor fermentation effect of the garbage bin, and affects economic benefits. Meanwhile, once the grate is blocked, manual dredging and cleaning are needed, which is not only a heavy workload, but also has a high concentration of toxic and harmful gases, a very dangerous working environment, and serious safety hazards.

[0003] Patent CN222111112U discloses a garbage pool dredging device with a detachable mounting frame, which comprises a dredging execution mechanism and a mounting frame. The mounting frame comprises an upper connecting seat, a lower connecting seat, an upper cross beam, a lower cross beam, and a lower support. The dredging execution mechanism comprises a ram frame, and a ram movable in a reciprocating manner is connected to the ram frame through a track. An oil cylinder is arranged between the ram frame and the ram to provide power for the reciprocating movement. The ram is provided with a through column. The device has the disadvantages of complex structure and high manufacturing cost. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a garbage bin leachate grid dredging device to simplify the structure of the dredging device, reduce the manufacturing cost, and reduce the installation difficulty.

[0005] Technical scheme: The utility model discloses an outer frame, a shaft sleeve is installed on the inner wall of one side of the outer frame close to the grate, the hole of the shaft sleeve is consistent with the opening on the grate plate, a plurality of dredging columns are connected between the shaft sleeve and the grate, one end of the dredging column is inserted into the shaft sleeve, the other end is connected with a dredging trolley, the other end of the dredging trolley is connected with a hydraulic cylinder, and the hydraulic cylinder is connected with the hydraulic station of the original garbage bin discharge door and the control system thereof.

[0006] A camera is arranged near the dredging device, and the dredging picture is transmitted to the garbage crane control room, so that the personnel can pay attention to the running state and dredging effect of the dredging device at any time when starting the equipment, the collision damage that may occur when the garbage crane and the dredging device run at the same time is avoided, the device damage rate is reduced, and the operation safety is improved.

[0007] The dredging trolley is connected with the end of the piston rod of the hydraulic cylinder, the dredging trolley is driven to move through the hydraulic cylinder, and the dredging column is driven to move, so as to dredge the garbage.

[0008] The head of the dredging column is conical, so as to dredge the garbage.

[0009] The hydraulic cylinder is fixed to the outer frame by a hydraulic cylinder support.

[0010] The outer frame adopts an assembly structure, which facilitates future maintenance or replacement due to corrosion.

[0011] The outer frame supports the front wall and rear wall of the trench respectively, and is positioned and fixed by stainless steel expansion bolts to release stress.

[0012] The bottom of the outer frame is supported by a support frame, which lifts the entire device, allowing sufficient space at the bottom of the device for passage.

[0013] Beneficial effects: This utility model has the following advantages:

[0014] (1) Simple structure and easy installation: The bushings on the outer frame serve both as guides and as supports for the drainage columns, avoiding the need for separate sliding rails and making the overall structure simple; at the same time, the original grate plate does not need to be replaced, and the detachable outer frame facilitates transportation to the ditch, making installation convenient and simple.

[0015] (2) Low cost: The device has a simple structure, uses less material, and has low manufacturing cost; it utilizes the existing unloading gate hydraulic station and control cabinet, which reduces equipment cost;

[0016] (3) Visualized operation and high safety: An explosion-proof camera is installed and the signal image is introduced into the garbage crane operation room. The operation status and dredging effect of the dredging device can be monitored at any time. At the same time, collision damage that may occur when the garbage crane and the dredging device are running at the same time is avoided, reducing the damage rate of the device and improving the safety of operation. Attached Figure Description

[0017] Fig. 1 A schematic diagram showing the zero-stroke state of the unblocking column;

[0018] Fig. 2 A schematic diagram illustrating the full stroke state of the unblocking column;

[0019] Fig. 3 A top view of the unblocking column at full stroke.

[0020] Fig. 4 This is a top view of the unblocking device of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figs. 1-4As shown, the leachate grating unblocking device for the landfill in this embodiment includes an outer frame 1. The outer frame 1 can be made of I-beams, with a height of 1.1 meters, a length of 2.5 meters, and a width of 1.3 meters. The outer frame 1 is assembled entirely with stainless steel M20 screws, facilitating future maintenance or replacement due to corrosion. The outer frame 1 supports the front wall 9 and rear wall 10 of the trench respectively at the front and rear, and is fixed in place using stainless steel expansion bolts to release stress. The bottom of the outer frame 1 is supported by a support frame 7, which consists of four φ89*1400 round steel bars, lifting the entire device to provide sufficient space for passage at the bottom.

[0023] A bushing 2 is installed on the inner wall of the outer frame 1 near the grate 8. The bushing 2 is fixed to the outer frame 1, and the bushing hole matches the opening on the grate plate, serving a guiding function to ensure that the unblocking column 3 can smoothly exit the garbage bin. Multiple unblocking columns 3 are connected through the bushing 2 and the grate 8. The unblocking column 3 is a single row of three φ42*1300 solid round steel nozzles with a conical head. One end of the unblocking column 3 is inserted into the bushing, and the other end is connected to the unblocking trolley 4. The other end of the unblocking trolley 4 is connected to the piston rod end of the hydraulic cylinder 5. The hydraulic cylinder 5 is fixed to the outer frame 1 by the hydraulic cylinder support 6. After the external fabrication is completed, all components are uniformly ground and protected against corrosion, and finally positioned and assembled in the trench.

[0024] By utilizing the hydraulic station and control system of the existing garbage bin unloading gate, without affecting daily garbage unloading, one of the unloading gates can be removed. The control signal and hydraulic oil pipeline of this unloading gate can be connected to the dredging device as the signal source and hydraulic oil pipeline. Only the signal line and oil pipeline need to be extended.

[0025] The unblocking device is equipped with two (forward and backward) limit signal feedbacks. It adopts proximity switch control, which works by using the original limit switch of the unloading gate to control the solenoid valve. The signal from the local probe of the unblocking device is connected to the hydraulic station control cabinet through a cable (between the ditch and the unloading platform), so that the garbage station operator can remotely control the unblocking device from the control room.

[0026] An explosion-proof camera is installed near the dredging device to transmit the dredging footage to the garbage crane control room. This allows personnel to monitor the dredging device's operating status and dredging effect at any time when the equipment is started, avoiding potential collision damage that may occur when the garbage crane and the dredging device are running simultaneously. This reduces the device's damage rate and improves operational safety.

[0027] During operation, the oil pressure is adjusted to approximately 6.8 MPa (depending on the situation). The hydraulic cylinder drives the dredging column forward, inserting it into the garbage bin and protruding it a distance L. At full stroke, L = 250 mm. Hydraulic power: 7.5 kW; Voltage rating: 380 V; System rated working pressure: 5-16 MPa.

[0028] This utility model's dredging device allows for the smooth discharge of leachate accumulated at the bottom of the waste bin. Compared to previous complete sets of grating dredging devices, it eliminates the need to replace the grate with a matching grating rod and the entire hydraulic control system. It only requires drilling grating rod holes at the center point of the original grate and utilizing the hydraulic control system provided with the waste-to-energy plant's unloading gate to achieve fully automated dredging, thus reducing costs and increasing efficiency. The entire system has good water resistance; even if the leachate channel is submerged, the equipment can still operate normally without any potential safety risks such as explosions.

Claims

1. A device for clearing leachate from a landfill, characterized in that, The device includes an outer frame, on the inner wall of the outer frame near the grate, a bushing is installed, the bushing hole is consistent with the opening on the grate plate, and multiple unblocking columns are connected through the bushing and the grate. One end of the unblocking column is inserted into the bushing, and the other end is connected to the unblocking trolley. The other end of the unblocking trolley is connected to a hydraulic cylinder, and the hydraulic cylinder is connected to the hydraulic station and control system of the original garbage bin unloading door.

2. The leachate grating unblocking device for landfills according to claim 1, characterized in that, Cameras were installed near the dredging equipment.

3. The leachate grating unblocking device for landfills according to claim 1, characterized in that, The unblocking trolley is connected to the end of the piston rod of the hydraulic cylinder.

4. The leachate grating unblocking device for landfills according to claim 1, characterized in that, The head of the dredging column is conical.

5. The leachate grating unblocking device for landfills according to claim 3, characterized in that, The hydraulic cylinder is fixed to the outer frame by a hydraulic cylinder support.

6. The leachate grating unblocking device for landfills according to claim 5, characterized in that, The outer frame adopts an assembly structure.

7. The leachate grating unblocking device for landfills according to claim 6, characterized in that, The outer frame supports the front wall and rear wall of the trench respectively.

8. The leachate grating unblocking device for landfills according to claim 7, characterized in that, The bottom of the outer frame is supported by a support frame.

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