CN206700892U - Base type garbage leachate grating device - Google Patents

Abstract

The utility model belongs to the technical field of garbage and sewage treatment equipment, and relates to a grid device for filtering leachate or water sediment in garbage treatment, in particular to a pedestal-type garbage leachate grid device. Realize the discharge and collection of garbage filtrate. The main structure includes solid base, grid wall, loose-leaf link, coarse grid, medium grid, fine grid, grid hole, hole top wall, hole bottom wall, safety lock, grid bottom hollow, diversion tube, Vacuum and backwash pump, spherical concave surface, diversion channel, grille gap, base opening, grille filter, support keel and diversion groove; it has the advantages of simple processing and maintenance, can be applied in large quantities, and is economical and safe; It realizes the efficient collection of landfill leachate through the vacuum pump, reducing the overflow of filtrate and the emission of odor; the device is equipped with a backwashing device, which is convenient for cleaning and maintenance of the equipment; the application environment is friendly.

Description

A pedestal-type landfill leachate grille device

Technical field:

The utility model belongs to the technical field of garbage and sewage treatment equipment, and relates to a grid device for filtering leachate or water sediment in garbage treatment, in particular to a pedestal-type garbage leachate grid device. Realize the discharge and collection of garbage filtrate.

Background technique:

Landfill leachate is the product of gravity flow of liquid in the landfill, mainly from precipitation and the embedded water of the waste itself. Since many factors may affect the properties of the leachate during the flow of the liquid, including physical factors, chemical factors and biological factors, the properties of the leachate vary within a considerable range. The leachate of urban waste landfill is a kind of high-concentration organic wastewater with complex components. If it is directly discharged into the environment without treatment, it will cause serious environmental pollution. For the purpose of protecting the environment, it is essential to treat the leachate. The collection and treatment of leachate in urban waste landfills has always been a very difficult problem in the design, operation and management of landfills.

In order to thoroughly and effectively solve potential safety hazards and ensure safety and environmental protection during garbage compression and transportation, the utility model develops a base-type garbage leachate grid device to achieve efficient and environmentally friendly collection of garbage leachate. The device has the advantages of simple structure, economy and safety, and is convenient to popularize and use.

Invention content:

In order to overcome the shortcomings of the prior art, it is sought to design a pedestal landfill leachate grid device, which realizes the discharge and collection of landfill filtrate by setting up multi-layer grids.

In order to achieve the above purpose, the main structure of the pedestal landfill leachate grill device involved in the utility model includes a solid base, a grill cylinder wall, loose-leaf links, a coarse grill, a middle grill, a fine grill, and grill holes , hole top wall, hole bottom wall, safety lock, grid bottom hollow, diversion pipe, vacuum and backwash pump, spherical concave surface, diversion channel, grille gap, base opening, grille filter, support keel and Diversion groove; the lower part of the cylindrical steel grid wall is provided with a cylindrical bowl-shaped steel solid base, the diameter of the solid base is the same as the inner diameter of the grid wall; the top surface of the solid base A spherical concave surface is formed, and a base opening is opened at the center of the bottom of the spherical concave surface and extends downwards and outwards to form a diversion channel. The outside of the grid wall; the vacuum and backwash pumps are fixed on the guide tube to suck out the permeate and backwash the device inside the grid wall; the upper part of the solid base is sequentially arranged with grids from bottom to top The filter screen, coarse grille, middle grille and fine grille are connected to the wall of the grille cylinder through loose-leaf links and safety locks respectively arranged at the left and right ends of the screen filter screen, coarse grille, middle grille and fine grille. The grid filter, coarse grid, medium grid and fine grid are respectively spaced to form a three-layer grid gap. The grid filter is a steel mesh structure, and the coarse grid, medium grid and fine grid All are steel grille structures, and the thickness decreases sequentially from bottom to top. The safety lock at the corresponding position opens the coarse grille, middle grille and fine grille to clean the grille gap below the corresponding position. The coarse grille, middle grille Both the grid and the fine grid are provided with grid holes with a porous structure to allow the permeate to seep down; the safety lock at the corresponding position of the grid filter is opened to clean the grid bottom formed between the grid filter and the spherical concave surface Hollow; in the hollow of the grid bottom above the spherical concave surface, steel strip structure support keels are arranged to support the pressure from above the grid screen; the grid holes are equipped with steel structure hole top walls and holes The bottom wall, the top wall of the hole and the bottom wall of the hole are respectively provided with two diversion grooves opposite to each other, so that the leachate can infiltrate through the diversion between the grids or between the grid gaps between the coarse grid and the grid filter.

The diameter of the grid cylinder wall involved in the utility model is 3500cm, the height is 30cm, and the thickness is 2cm; the diameter of the solid base is 3500cm, and the depth is 5cm; the diameters of the coarse grid, the medium grid and the fine grid are all 3500cm , the thickness is 3cm, the filter diameter of the grid holes in the coarse grid is 2.5cm, the filter diameter of the grid holes in the medium grid is 2cm, and the filter diameter of the grid holes in the fine grid is 1.5cm ; The diameter of the grid filter is 3500cm, the thickness is 0.5cm, and its filtering radius is 1cm.

The diameter of the pipeline in the front section where the diversion channel and the opening of the base is connected to the utility model is 10cm, and the deflection angle between it and the vertical direction is 30°, and the diameter of the pipeline in the rear section where the diversion channel is connected to the diversion tube is 8cm. , its deflection angle with the vertical direction is 60°; the pipe diameter of the draft pipe is 12cm.

The diversion groove that the utility model relates to has a width of 0.06 cm and a height of 0.5 cm.

When the utility model is applied to the filtration treatment of garbage leachate, when the garbage is squeezed above the fine grid, the garbage leachate is squeezed out from the garbage, passes through the diversion groove of the grid hole above the fine grid, and passes through the grid. The grid hole flows to the grille gap, continues to pass through the diversion groove of the grille hole above the middle grille, flows through the grille hole to the grille gap, and then passes through the diversion groove of the grille hole above the coarse grille, and passes through the grille hole After flowing into the gap of the grid, it is further filtered by the grid filter, and after the leachate is collected by the spherical concave surface, it is discharged through the diversion channel and the diversion tube in turn through the suction provided by the vacuum and the backwash pump, and further collected Treatment; when the grid is blocked or leachate filtration treatment is not performed, the backwash operation can be performed on the base-type landfill leachate grid device through the reverse thrust provided by the vacuum and the backwash pump.

Compared with the prior art, the utility model has the advantages of simple processing and maintenance, can be applied and popularized in large quantities, and is economical and safe; it realizes the efficient collection of landfill leachate through a vacuum pump, and reduces the overflow of filtrate and the emission of odor; the device is set The backwashing device is installed to facilitate the cleaning and maintenance of the equipment; the device can be used in landfills, garbage transfer stations, collection points and other places, which is convenient for the popularization and promotion of the device in the society.

Description of drawings:

Fig. 1 is the principle schematic diagram of the main structure of the utility model.

Fig. 2 is a schematic top view of the principle of the main body structure of the present invention.

Fig. 3 is a schematic diagram of the structure and principle of the diversion groove involved in the present invention.

Fig. 4 is a schematic diagram of the structural principle of the supporting keel involved in the present invention.

detailed description:

Further description will be given below through the embodiments and in conjunction with the accompanying drawings.

Example 1:

The main structure of the pedestal-type landfill leachate grid device involved in this embodiment includes a solid base 1, a grid cylinder wall 2, a loose-leaf link 3, a coarse grid 4, a medium grid 5, a fine grid 6, a grid Hole 7, hole top wall 8, hole bottom wall 9, safety lock 10, grid bottom hollow 11, diversion pipe 12, vacuum and backwash pump 13, spherical concave surface 14, diversion channel 15, grid gap 16, base Hole 17, grid filter 18, support keel 19 and diversion groove 20; the lower part of the grid wall 2 of cylindrical steel structure is provided with a cylindrical bowl-shaped steel solid base 1, solid base 1 The diameter is the same as the inner diameter of the grid cylinder wall 2; the top surface of the solid base 1 forms a spherical concave surface 14, and a base opening 17 is opened at the center of the bottom of the spherical concave surface 14 and extends downwards and outwards to form a guide channel 15. The diversion channel extends to the outside of the grill cylinder wall 2 and connects with the diversion pipe 12, so as to guide the permeate out of the grill cylinder wall 2; the vacuum and backwash pump 13 is fixedly installed on the diversion pipe 12, so as to suck out Permeate and reverse flush the device in the grid cylinder wall 2; on the upper part of the solid base 1, there are grid filter screens 18, coarse grids 4, middle grids 5 and fine grids 6 at intervals from bottom to top, The loose-leaf links 3 and the safety locks 10 which are correspondingly arranged on the left and right ends of the grid filter screen 18, the coarse grid 4, the middle grid 5 and the fine grid 6 are connected to the grid cylinder wall 2, and the grid filter screen 18, the coarse grid The grid 4, the middle grid 5 and the fine grid 6 are respectively spaced to form a three-layer grid gap 16, the grid filter 18 is a steel mesh structure, the coarse grid 4, the middle grid 5 and the fine grid 6 are all steel grid structures, and the thickness decreases sequentially from bottom to top. The safety lock 10 at the corresponding position opens the coarse grid 4, the middle grid 5 and the fine grid 6 to clean the grid gap 16 below the corresponding position. Coarse grid 4, medium grid 5 and fine grid 6 are respectively provided with grid holes 7 with a porous structure, so that the permeate can seep downward; the safety lock 10 at the corresponding position of the grid filter 18 is opened to clean the grid The grid bottom hollow 11 formed between the filter screen 18 and the spherical concave surface 14; the support keel 19 of the steel strip structure is intersected in the grid bottom hollow 11 above the spherical concave surface 14, so as to support from the grid filter screen 18 The upper pressure; the grid hole 7 is provided with a steel structure hole top wall 8 and a hole bottom wall 9, and the hole top wall 8 and the hole bottom wall 9 are respectively provided with two diversion grooves 20, so that the leachate can The diversion between the grids or between the coarse grids 4 and the grid screen 18 infiltrates.

When this embodiment is applied to the filtration treatment of landfill leachate, when the waste is squeezed above the fine grid 6, the landfill leachate is squeezed out from the waste, and passes through the diversion groove of the grid hole 7 above the fine grid 6 20. Flow through the grid hole 7 to the grid gap 16, continue to pass through the diversion groove 20 of the grid hole 7 above the middle grid 5, flow through the grid hole 7 to the grid gap 16, and then pass through the top of the coarse grid 4 The diversion groove 20 of the grill hole 7 flows to the grill gap 16 through the grill hole 7, and then is further filtered by the grill filter 18, and the leachate is collected by the spherical concave surface 14, and provided by the vacuum and backwash pump 13. The suction is discharged through the diversion channel 15 and the diversion pipe 14 in turn, and further collection treatment is carried out; when the grid is blocked or leachate filtration treatment is not performed, the reverse thrust provided by the vacuum and backwash pump 13 can be used to Perform backwashing operations on the pedestal landfill leachate grille device.

The grid cylinder wall 2 involved in this embodiment has a diameter of 3500 cm, a height of 30 cm, and a thickness of 2 cm; a solid base 1 has a diameter of 3500 cm and a depth of 5 cm; the coarse grid 4, the middle grid 5 and the fine grid 6 The diameter of each is 3500cm, and the thickness is 3cm, wherein the filter diameter of the grid hole 7 in the coarse grid 4 is 2.5cm, the filter diameter of the grid hole 7 in the middle grid 5 is 2cm, and the filter diameter of the grid hole 7 in the fine grid 6 is 2cm. The filtering diameter of the grid hole 7 is 1.5cm; the diameter of the grid filter screen 18 is 3500cm, the thickness is 0.5cm, and its filtering radius is 1cm.

The pipe diameter of the front section where the flow guide channel 15 communicates with the base opening 17 involved in this embodiment is 10 cm, and the deflection angle with the vertical direction is 30°. The diameter of the pipeline is 8cm, and its deflection angle with the vertical direction is 60°; the diameter of the pipeline of the draft tube 12 is 12cm.

The guide groove 20 involved in this embodiment has a width of 0.06 cm and a height of 0.5 cm.

Claims (4)

1. A pedestal-type landfill leachate grid device, characterized in that its main structure includes a solid base, a grid wall, loose-leaf links, coarse grids, medium grids, fine grids, grid holes, holes Top wall, hole bottom wall, safety lock, grid bottom hollow, diversion pipe, vacuum and backwash pump, spherical concave surface, diversion channel, grille gap, base opening, grille screen, support keel and diversion Groove; the lower part of the grid wall of the cylindrical steel structure is provided with a cylindrical bowl-shaped steel solid base, the diameter of the solid base is the same as the inner diameter of the grid wall; the top surface of the solid base forms a spherical shape On the concave surface, there is a base opening at the center of the bottom of the spherical concave surface and extends downwards and outwards to form a diversion channel. The diversion channel extends to the outside of the grid cylinder wall to connect with the diversion tube; the diversion tube is fixed with a vacuum and the backwash pump; on the upper part of the solid base, there are grid screens, coarse grids, medium grids and fine grids at intervals from bottom to top. The loose-leaf links and safety locks at the left and right ends of the grid and the fine grid are connected to the wall of the grid cylinder, and the grid filter, the coarse grid, the middle grid and the fine grid are respectively spaced to form a three-layer grid gap. The filter screen is a steel mesh structure, the coarse grille, the middle grille and the fine grille are all steel grille structures, and the thickness decreases in turn from bottom to top, and the safety lock at the corresponding position opens the coarse grille, middle grille and fine grille for cleaning the grille gap below the corresponding position, the coarse grille, medium grille and fine grille are respectively provided with hole-like structure grille holes; the safety lock at the corresponding position of the grille filter is opened for cleaning The bottom of the grid formed between the grid filter and the spherical concave surface is hollow; the hollow bottom of the grid above the spherical concave surface is intersected with supporting keels of steel strip structure; the grid hole is provided with a hole top of steel structure The wall and the bottom wall of the hole, the top wall of the hole and the bottom wall of the hole are respectively provided with two diversion grooves, so that the leachate can be diverted between the grids or between the grid gaps between the coarse grid and the grid filter. Infiltration. 2. The pedestal-type landfill leachate grid device according to claim 1, characterized in that the diameter of the grid cylinder wall is 3500cm, the height is 30cm, and the thickness is 2cm; the diameter of the solid base is 3500cm, the depth The diameter of the coarse grid, the medium grid and the fine grid is 3500 cm, and the thickness is 3 cm, wherein the filtering diameter of the grid hole in the coarse grid is 2.5 cm, and the diameter of the grid hole in the middle grid is 2.5 cm. The filtration diameter is 2cm, and the filtration diameter of the grid holes in the fine grid is 1.5cm; the diameter of the grid filter is 3500cm, the thickness is 0.5cm, and its filtration radius is 1cm. 3. The pedestal-type landfill leachate grid device according to claim 1, characterized in that the diameter of the pipeline at the front section where the diversion channel communicates with the opening of the base is 10 cm, and its deflection angle with the vertical direction is 30°, the pipe diameter of the back section where the diversion channel is connected with the diversion tube is 8cm, and its deflection angle with the vertical direction is 60°; the diameter of the duct of the diversion tube is 12cm. 4. The pedestal-type landfill leachate grid device according to claim 1, characterized in that the diversion groove has a width of 0.06 cm and a height of 0.5 cm.