Dredging device for leachate grate of garbage warehouse

Abstract

The utility model relates to the technical field of waste incineration, and discloses a dredging device for a leachate grate of a waste storage. The device comprises a dredging executing mechanism and a jacking mechanism, a plurality of grates are arranged and are distributed on the channel; the dredging executing mechanisms are mounted in the liquid collecting cavity on one side of the channel and correspond to the grates in number one by one; the dredging end of each group of dredging executing mechanism is matched with the shape of the sieve hole in the corresponding grate and can axially slide along the sieve hole; the driving end of the jacking mechanism can periodically move in a one-way mode in the distribution direction of the multiple grates and abut against the installation position of each dredging end in the moving process, so that the dredging ends slide in the axial direction to penetrate through the corresponding sieve holes. According to the utility model, the dredging end below each grate does not need to be re-positioned independently, so that the continuous and stable dredging efficiency is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to garbage incineration technical field, concretely is a kind of garbage library leachate grate's dredging device. BACKGROUND

[0002] Garbage incineration power generation technology is increasingly popular, and the garbage leachate in the garbage library accounts for about 20%-30% of the weight of the garbage. These leachate must be filtered through the leachate grate on the garbage library channel before discharge. The grate is easily clogged with debris in the leachate. The space of the garbage library channel is limited, and there are many grates, and the content of toxic and harmful gases is high. Manual dredging is not only inefficient but also has safety hazards.

[0003] The existing grate automatic dredging technology generally sets a track extending along the distribution direction of the grate in the channel, and a small car that can slide is arranged on the track, and a hydraulic system is installed on the small car. The dredging structure is driven to clean the grate by the hydraulic system in cooperation with the transmission structure. This scheme can effectively dredge the grate, but the small car and / or transmission structure need to be positioned by the sensor and controller every time they move near the grate to ensure that the dredging structure accurately enters the screen hole of the grate. Not only does this lead to a complex device structure, but it also limits the dredging efficiency. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the present application is that the existing grate automatic dredging device needs to be positioned repeatedly, which limits the efficiency of grate dredging.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model discloses a kind of garbage library leachate grate's dredging device, including dredging execution mechanism and jacking mechanism;Grate is distributed in channel with multiple and;Dredging execution mechanism is installed in the liquid collection cavity of one side of channel and quantity and grate one-to-one correspondence;The screen hole shape of each group of dredging execution mechanism's dredging end is matched with corresponding grate, and can slide along screen hole axial direction;The driving end of jacking mechanism can periodically translate along the distribution direction of multiple grates, and abuts every dredging end during translation Process installation site, so that dredging end generates axial sliding to penetrate corresponding screen hole.

[0007] As a further improvement of the above scheme, the grate is horizontally fixed on the top wall of the channel;Each group of dredging execution mechanism includes a bottom plate slidably mounted on the top wall of the channel in the vertical direction;The bottom plate serves as the mounting site of the dredging end, and the upper surface is fixedly connected with a plurality of top columns to form the dredging end, and the top column and the screen hole on the grate are matched in position and shape.

[0008] As a further improvement of the above-mentioned scheme, the jacking mechanism comprises a chain wheel assembly and a first roller; the chain wheel assembly is provided with multiple groups and is linearly distributed below the top wall of the channel; the multiple groups of chain wheel assemblies are connected by a chain transmission and are driven by a power source to rotate synchronously; the first roller is rotatably installed on the side of the chain facing the top wall of the channel and the wheel surface constitutes a driving end, which can realize periodic unidirectional translation with the conveying of the chain; the wheel surface of the first roller abuts against the dredging end of each group of dredging execution mechanisms in sequence during translation, so that the dredging end slides axially.

[0009] As a further improvement of the above-mentioned scheme, in each group of dredging execution mechanisms, an elastic member is arranged between the dredging end and the grate for guiding the reset of the dredging end, i.e., the disengagement of the grate.

[0010] As a further improvement of the above-mentioned scheme, a support table is fixedly installed on the bottom wall of the liquid collecting cavity, and the jacking mechanism is installed on the support table.

[0011] As a further improvement of the above-mentioned scheme, each group of chain wheel assemblies is composed of two chain wheels and a transmission shaft, and the two chain wheels are coaxially fixed on the transmission shaft; the two ends of the transmission shaft are rotatably installed on the support table; and the two corresponding chain wheels of all chain wheel assemblies are connected by two chains.

[0012] As a further improvement of the above-mentioned scheme, the power source adopts a speed reducer motor, the speed reducer motor and the channel are relatively fixed, and the output shaft of the motor and the transmission shaft of one of the chain wheel assemblies are coaxially fixed.

[0013] As a further improvement of the above-mentioned scheme, the number of chain wheel assemblies corresponds to the number of grates, and the two chain wheels in each group of chain wheel assemblies are located directly below the corresponding grates.

[0014] As a further improvement of the above-mentioned scheme, the distribution direction of the multiple grates is linear distribution.

[0015] Among them, the grate is horizontally arranged on the top wall of the channel, thereby forming a vertical percolation direction.

[0016] Or,

[0017] The grate is vertically arranged on the side wall of the channel, thereby forming a horizontal percolation direction.

[0018] As a further improvement of the above-mentioned scheme, a window corresponding to the number of grates is formed on the channel, and each grate is fixedly installed in the corresponding window.

[0019] The beneficial effects of the present application are:

[0020] This invention involves installing a clearing end corresponding to the grate on one side of the liquid collection chamber of the channel. A lifting mechanism periodically engages with this end, causing it to slide and clean the screen holes. Compared to existing technologies, this invention has a simpler principle and structure, eliminating the need for individual repositioning of the clearing end under each grate, thus ensuring consistently high clearing efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the dredging device and local channel of the leachate grate in the landfill in Embodiment 1 of this utility model.

[0022] Figure 2 This is a three-dimensional structural diagram of the lifting mechanism and the unblocking actuator under the four grates in Embodiment 1 of this utility model.

[0023] Figure 3 for Figure 2 The main view of the lifting mechanism and the unblocking actuator.

[0024] Figure 4 This is a front view of the grate and the unblocking actuator in Embodiment 1 of this utility model.

[0025] Figure 5 for Figure 3 Enlarged view of point A in the image.

[0026] Figure 6 This is a three-dimensional structural diagram of the grate, the unblocking mechanism, and the local channel in Embodiment 1 of this utility model.

[0027] Figure 7 This is a front view of the distribution of multiple first rollers on the chain in Embodiment 1 of this utility model (the colored dashed lines in this figure represent the sloping transition section and the horizontal holding section).

[0028] Figure 8 This is a three-dimensional structural diagram of the first roller fixed to the chain by a hoop in Embodiment 1 of this utility model.

[0029] Figure 9 This is a front view showing the relative positions of the wedge block, the second roller, and the unblocking actuator in Embodiment 2 of this utility model.

[0030] In the diagram: 1. Unblocking actuator; 10. Unblocking end; 11. Base plate; 12. Top column; 13. Elastic element; 14. Optical shaft; 2. Lifting mechanism; 21. First roller; 22. Second roller; 23. Sprocket assembly; 231. Sprocket; 232. Drive shaft; 24. Chain; 25. Power source; 26. Wedge block; 261. Sloping surface; 3. Grate; 30. Screen hole; 4. Channel; 5. Liquid collection chamber; 6. Support platform; 7. Hoop. Detailed Implementation

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0032] Embodiment 1

[0033] Please refer to Figure 1 The grate 3 in the embodiment is provided with a plurality of grates 3 distributed on the channel 4, and the grates 3 are horizontally arranged in the window of the top wall of the channel 4, thereby forming a vertical leach direction. Of course, in some embodiments, considering that the garbage pile is placed on the side of the channel 4, the grates 3 can also be vertically arranged on the side wall of the channel 4, thereby forming a horizontal leach direction, and the leachate in the garbage pile can also flow to the liquid collecting cavity 5 on the other side along the horizontal direction.

[0034] Please refer to Figures 2 to 8 The present embodiment provides a dredging device for a garbage pool leachate grate, which comprises a dredging execution mechanism 1 and a jacking mechanism 2.

[0035] The dredging execution mechanism 1 is installed in the liquid collecting cavity 5 on one side of the channel 4 and corresponds to the grates 3 in number; the dredging end 10 of each group of dredging execution mechanisms 1 is matched with the screen hole 30 on the corresponding grate 3 in shape and can slide axially along the screen hole 30.

[0036] In the present embodiment, each group of dredging execution mechanisms 1 comprises a bottom plate 11, a top column 12, an elastic member 13 and a light shaft 14.

[0037] In each group of dredging execution mechanisms 1, four light shafts 14 extending in the vertical direction are fixedly connected to the top wall of the channel 4 and located near each grate 3, and the bottom plate 11 is slidingly installed on the plurality of light shafts 14, so that the bottom plate 11 can slide relative to the grate 3. The number of elastic members 13 corresponds to the number of light shafts 14, and the elastic member 13 is a spring sleeved on the corresponding light shaft 14, and the two ends of the spring are in contact with the bottom plate 11 and the top wall of the channel 4, respectively, for guiding the bottom plate 11 to tend to the initial state, i.e. the unlifted state. Of course, in some embodiments, the elastic member 11 can also not be provided, and the bottom plate 11 can also be reset by its own gravity.

[0038] The bottom plate 11 serves as the mounting position of the dredging end 10, and the upper surface is fixedly connected with a plurality of top columns 12, and the plurality of top columns 12 constitute the dredging end 10, and the top column 12 is matched with the screen hole 30 on the grate 3 in position and shape. When the bottom plate 11 is lifted to a set height, all the top columns 12 can penetrate through the corresponding screen hole 30, thereby playing a dredging role.

[0039] The driving end of the jacking mechanism 2 can move in a single direction periodically along the distribution direction of the plurality of screens 3, and abuts against the mounting position of each dredging end 10 during the movement, so that the dredging end 10 slides axially to pass through the corresponding screen hole 30.

[0040] In this embodiment, the jacking mechanism 2 includes a chain wheel assembly 23 and a plurality of first rollers 21.

[0041] The chain wheel assembly 23 is provided in multiple groups and linearly distributed below the top wall of the channel 4; the plurality of chain wheel assemblies 23 are connected by a chain 24, and are driven by a power source 25 to rotate synchronously; the first roller 21 is rotatably installed on the side of the chain 24 facing the top wall of the channel 4, and the wheel surface constitutes the driving end, which can move in a single direction periodically with the conveying of the chain 24; the wheel surface of the first roller 21 abuts against the dredging end 10 of each dredging execution mechanism 1 in turn during the movement, so that the dredging end 10 slides axially.

[0042] Each chain wheel assembly 23 is composed of two chain wheels 231 and a transmission shaft 232, and the two chain wheels 231 are coaxially fixed on the transmission shaft 232; the two corresponding chain wheels 231 of all chain wheel assemblies 23 are connected by two chains 24.

[0043] A support table 6 is fixedly installed on the bottom wall of the liquid collecting cavity 5, and the jacking mechanism 2 is installed on the support table 6. Specifically, the transmission shaft of each chain wheel assembly 23 can be rotatably installed on the support table 6.

[0044] The power source 25 adopts a reduction motor, the reduction motor is fixed relative to the channel 4, and the output shaft of the motor is coaxially fixed with the transmission shaft 232 of one of the chain wheel assemblies 23, so as to provide sufficient torque for the movement of the chain wheel 231.

[0045] The outer ring of the chain 24 can replace the trolley in the prior art as a carrier for linear movement of the driving end, and this structure can realize periodic movement. After the driving end lifts all the bottom plates 11 within its stroke, the driving end can return to the starting point through the continuous operation of the chain wheel assembly 23, and move from the same direction again and act on the bottom plates 11. Moreover, compared with the track trolley, the chain wheel-chain structure is smaller in size and easier to deploy and maintain.

[0046] Of course, in some embodiments, the chain wheel-chain structure can also be replaced by a conveyor belt, which can also achieve the effect of approaching. Considering that the landfill leachate falls from above, the transmission structure can be isolated and protected by a protective shell. In this embodiment, the chain wheel assembly 23, the chain 24, the bottom plate 11, the jacking column 12 and other key components can be made of corrosion-resistant materials such as stainless steel.

[0047] The plurality of groups of first rollers 21 are equidistantly distributed on the chain 24, and the supports of the first rollers 21 are fixedly connected to the chain 24 through the hoops 7; in the order of contact with the bottom plate 11, the heights of the plurality of groups of first rollers 21 gradually increase and then remain horizontal, so that the wheel surfaces of the groups of first rollers 21 form a sloping transition section and a horizontal maintaining section; wherein the bottom plate 11 can be gradually jacked from an initial height to a set height when contacting the first rollers 21 in the sloping transition section, and the bottom plate 11 can remain at the set height when contacting the first rollers 21 in the horizontal maintaining section.

[0048] In the plurality of groups of first rollers 21 in the embodiment, the axial height of the first roller 21 that can first contact the bottom plate 11 is h1, and the height of the top end of the outer edge of the first roller 21 is h2; the height of the lower surface of the bottom plate 11 in the initial state is h3, and h1 < h3 < h2 is satisfied. In this way, when the first roller 21 first contacts the bottom plate 11, it can be ensured that the device will not be stuck, and the bottom plate 11 can be smoothly lifted by the upper edge of the first roller 21.

[0049] The present application can periodically unblock the grate 3 by extruding the bottom plate 11 through the sloping transition section arranged to move with the chain 24, compared with the hydraulic system + hinged transmission structure in the prior art, further reducing the volume occupied by the device, improving the convenience of device deployment and maintenance, and saving costs while having a simple structure without the need for pre-positioning for each unblocking action.

[0050] In the embodiment, the number of sprocket assemblies 23 corresponds to the number of grates 3, and the two sprockets 231 in each group of sprocket assemblies 23 are located directly below the corresponding grate 3. In this way, when the first roller 21 moves to this position to jack up the bottom plate 11, the sprocket assembly 23 can provide support for the chain 24 to avoid bending of the chain 24 to ensure smooth jacking of the bottom plate 11

[0051] Embodiment 2

[0052] Please refer to Figure 9 The embodiment provides a jacking mechanism 2, which is different from the jacking mechanism 2 of embodiment 1 in that the jacking mechanism 2 comprises a wedge-shaped block 26 and a group of second rollers 22.

[0053] The wedge-shaped block 26 is fixedly installed on a carrier that can move linearly in a horizontal plane, which can be the chain 24 transmission structure in embodiment 1 or a conveyor belt. Considering that the volume of the wedge-shaped block 26 is larger than that of the first roller 21 in embodiment 1, the bottom of the wedge-shaped block 26 can be welded to one of the links of the chain 24 to ensure the stability of the wedge-shaped block 26 when the chain 24 passes through the sprocket 231 (turns).

[0054] The inclined surface 261 of the wedge-shaped block 26 forms a slope transition section, and the slope bottom of the inclined surface 261 is first contacted with the bottom plate 11 during movement.

[0055] The second roller 22 is installed at the bottom of the bottom plate 11, and the bottom plate 11 is contacted with the wheel surface of the second roller 22 and the slope transition section, so as to further improve the smoothness of the cooperation between the components during the jacking action.

[0056] The outer edge bottom end of the second roller 22 has a height of h4, and the bottom end of the wedge-shaped block 26 has a height of h5, and h4>h5 is met, so that the bottom plate 11 can be smoothly jacked up by the inclined surface 261.

[0057] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A de-clogging device for a landfill leachate screen, characterized in that, The dredging mechanism (1) and the jacking mechanism (2) are included; the grate (3) is provided with a plurality of and is distributed on the channel (4); the dredging mechanism (1) is installed in the liquid collecting cavity (5) on one side of the channel (4) and corresponds to the grate (3) one by one; the dredging end (10) of each group of dredging mechanisms (1) is matched with the shape of the screen hole (30) on the corresponding grate (3), and can slide along the screen hole (30) in the axial direction; the driving end of the jacking mechanism (2) can periodically translate along the distribution direction of the plurality of grates (3), and abuts against the mounting position of each dredging end (10) during the translation, so that the dredging end (10) generates the axial sliding to penetrate the corresponding screen hole (30).

2. A clogging device for a landfill leachate screen according to claim 1, wherein The grate (3) is horizontally fixed on the top wall of the channel (4); each group of dredging mechanisms (1) includes a bottom plate (11) which is slidably installed on the top wall of the channel (4) in the vertical direction; the bottom plate (11) serves as the mounting position of the dredging end (10), and the top surface is fixedly connected with a plurality of top columns (12) to form the dredging end (10), and the top column (12) is matched with the screen hole (30) on the grate (3) in position and shape.

3. A clogging device for a landfill leachate screen according to claim 2, wherein The jacking mechanism (2) includes a sprocket assembly (23) and a first roller (21); the sprocket assembly (23) is provided with a plurality of groups and is linearly distributed below the top wall of the channel (4); the plurality of groups of sprocket assemblies (23) are drivingly connected through chains (24), and are driven by a power source (25) to rotate synchronously; the first roller (21) is rotatably installed on one side of the chain (24) facing the top wall of the channel (4) and the wheel surface constitutes the driving end, which can realize periodic one-way translation with the conveying of the chain (24); the wheel surface of the first roller (21) abuts against the dredging end (10) of each group of dredging mechanisms (1) in turn during the translation, so that the dredging end (10) generates the axial sliding.

4. A device for unblocking a grid for leachate from a landfill according to any one of claims 1 to 3, characterized in that In each group of dredging mechanisms (1), an elastic member (13) is arranged between the dredging end (10) and the grate (3) to guide the reset of the dredging end (10) and separate the dredging end (10) from the grate (3).

5. A clogging device for a landfill leachate screen according to claim 3, wherein A support table (6) is fixedly installed on the bottom wall of the liquid collecting cavity (5), and the jacking mechanism (2) is installed on the support table (6).

6. A device for unblocking a grid for leachate of a landfill according to claim 5, characterized in that Each group of sprocket assemblies (23) is composed of two sprockets (231) and a transmission shaft (232), the two sprockets (231) are coaxially fixed on the transmission shaft (232); the two ends of the transmission shaft (232) are rotatably installed on the support table (6); the two corresponding sprockets (231) of all sprocket assemblies (23) are drivingly connected through two chains (24).

7. A device for unblocking a grid for leachate in a landfill according to claim 6, characterized in that The power source (25) adopts a reduction motor, the reduction motor and the channel (4) are relatively fixed, and the output shaft of the motor and the transmission shaft (232) of one of the sprocket assemblies (23) are coaxially fixed.

8. A clogging device for a leachate screen of a landfill leachate screen according to claim 6, characterized in that The number of sprocket assemblies (23) corresponds to the number of grates (3), and the two sprockets (231) in each group of sprocket assemblies (23) are located directly below the corresponding grate (3).

9. A clogging device for a landfill leachate screen according to claim 1, wherein The distribution direction of the plurality of grates (3) is linear distribution; The grate (3) is horizontally arranged on the top wall of the channel (4), thereby forming a vertical percolation direction; Or, The screen (3) is vertically arranged on the side wall of the channel (4) to form a horizontal percolation direction.

10. A device for unblocking a grid for leachate of a landfill according to claim 9, characterized in that A window corresponding to the screen (3) is arranged on the channel (4), and each screen (3) is fixedly arranged in the corresponding window.

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