A fixing device for landfill

Abstract

The invention discloses a fixing device for a garbage landfill, comprising a surface plate membrane, wherein the surface plate membrane is located at the upper end of the landfilled fly ash, a bottom plate membrane is arranged at the lower end of the fly ash, both sides of the bottom plate membrane are connected to the side membranes by hot melting, and the side membranes are simultaneously connected to the surface plate membranes by hot melting. The invention effectively solves the technical problems that the existing device is complicated, difficult and inconvenient to install, and has high cost, and that chemical agents can be used for the treatment of fly ash in the existing method, while the existing fixing device for garbage landfill cannot cooperate with chemical agent water to leach heavy metals in the fly ash, and thus can only be stabilized by a chelating agent, which has certain disadvantages.

Description

Technical Field

[0001] The invention mainly relates to the technical field of landfills, and in particular to a fixing device for a garbage landfill. Background Art

[0002] The conventional method for treating fly ash from domestic waste incineration plants in China is to solidify the fly ash and then safely landfill it. However, with the changing times, the requirements for the sanitary landfill and purification functions of landfills are becoming more and more stringent, especially for the design of anti-seepage systems in landfill storage areas, which has become a major problem.

[0003] There is a technology that after solidifying fly ash, when it rains, rainwater will penetrate into the solidified fly ash, causing the fly ash to dissolve easily, and then penetrate into the soil with rainwater, affecting groundwater, causing groundwater to be easily polluted. Therefore, patent publication number CN215759203U discloses a fixing device for landfills, which can isolate the fly ash on the base from the air through a flip cover cylinder, effectively solving the problem that when it rains, the fly ash is dissolved by rainwater, and the dissolved fly ash and rainwater mixture easily penetrates into the soil, affecting groundwater, causing groundwater to be easily polluted. However, the prior art and the device also have the following problems.

[0004] The installation of this device is complicated, difficult, inconvenient, and costly.

[0005] In the existing method, chemical agents can be used to treat fly ash. However, the existing landfill uses fixed devices, which cannot cooperate with chemical agent water to leach heavy metals in fly ash, so it can only be stabilized by chelating agents, which has certain disadvantages.

[0006] In summary, the present invention designs a fixing device for landfill to solve the above problems. Summary of the invention

[0007] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. It mainly provides a fixing device for a landfill to solve the technical problems raised in the above background technology.

[0008] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a fixing device for a landfill, comprising a surface plate membrane, the surface plate membrane is located at the upper end of the landfilled fly ash, and a bottom plate membrane is arranged at the lower end of the fly ash, and the two sides of the bottom plate membrane are connected to the side membrane by hot melting, and the side membrane is simultaneously connected to the surface plate membrane by hot melting.

[0009] Preferably, the surface through-plate membrane and the bottom through-plate membrane are formed by injection extrusion, and the surface through-plate membrane and the bottom through-plate membrane are both wound around two rotating rollers of a rotating roller device.

[0010] Preferably, the surface through-plate membrane is provided with a first through-groove, one end of which is connected to a drainage aid device, and the bottom through-plate membrane is provided with a second through-groove, one end of which is connected to a drainage aid device, and the other end of which is connected to a degradation tank.

[0011] Preferably, sliding grooves are symmetrically provided on the top of the second through groove, the sliding grooves are slidably connected to the sliding clamping strips, and filter cotton is arranged between the sliding clamping strips.

[0012] Preferably, the exhaust assisting device comprises an air pump, the air pump is connected to the first bus, the first bus is connected to one end of the second through groove, and the other end of the second through groove is connected to the interface.

[0013] Preferably, the air pump is connected to a three-way regulating valve, and the three-way regulating valve is respectively connected to one end of a first connecting pipe and one end of a second connecting pipe, the other end of the first connecting pipe is connected to a first bus, the second connecting pipe is connected to a second bus, and the second bus is connected to the first through groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the surface through-plate membrane and the bottom through-plate membrane are formed by injection extrusion, and both the surface through-plate membrane and the bottom through-plate membrane are wound on two rotating rollers of a rotating roller device, which makes it easy for workers to quickly lay and install them. Workers only need to pull the bottom through-plate membrane to make the bottom seepage-proof, and then hot-melt the bottom through-plate membrane and the surface through-plate membrane through the edge membrane to complete the sealing of fly ash, thereby preventing rainwater from combining with fly ash and infiltrating into the ground, causing groundwater pollution.

[0015] By injecting mixed chemicals and water into the first trough, the chemicals penetrate into the fly ash, causing the chemicals to leach heavy metals from the fly ash, which are finally discharged through the drainage aid device. At the same time, the drainage aid device can also accelerate the speed at which the chemicals penetrate the fly ash, thereby improving the efficiency of leaching heavy metals from the fly ash.

[0016] The output position of the air pump can be switched by the three-way regulating valve. When the three-way regulating valve is switched to be connected to the second reflux row, the air pump can accelerate the penetration of chemical agents into the fly ash, thereby accelerating the reaction and leaching of heavy metals in the fly ash. Switching to the first bus bar can enable the air pump to quickly discharge the heavy metals leached in the second trough into the degradation tank for degradation.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the ports of the surface through-plate membrane and the bottom through-plate membrane in the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0021] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 5 It is a schematic diagram of the structure of the surface through plate membrane, the edge membrane and the second through groove in the present invention when they are laid.

[0023] Markings in the figure: 1-surface through-plate membrane, 11-first through-groove, 2-bottom through-plate membrane, 21-second through-groove, 22-filter cotton, 23-sliding card strip, 3-side membrane, 4-drainage aid, 41-air pump, 42-three-way regulating valve, 43-first connecting pipe, 44-second connecting pipe, 45-first bus, 46-second bus, 5-rotating roller device, 6-degradation tank. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] See also Figure 1-Figure 5A fixing device for a landfill comprises a surface plate membrane 1, the surface plate membrane 1 is located at the upper end of the landfilled fly ash, a bottom plate membrane 2 is arranged at the lower end of the fly ash, the two sides of the bottom plate membrane 2 are connected to the side membrane 3 by hot melting, and the side membrane 3 is simultaneously connected to the surface plate membrane 1 by hot melting, the surface plate membrane 1, the side membrane 3 and the bottom plate membrane 2 are all HDPE anti-seepage membranes (high-density polyethylene membranes), and the thickness is 1 cm, HDPE has excellent anti-corrosion performance, electrical performance, moisture-proof performance, anti-leakage performance, and high tensile strength, so it can play a good anti-seepage effect in the anti-seepage of garbage landfill and solid waste landfill.

[0028] The surface through-plate membrane 1 and the bottom through-plate membrane 2 are formed by injection molding and extrusion, and both the surface through-plate membrane 1 and the bottom through-plate membrane 2 are wound around the two rollers of the rotating roller device 5. This method can facilitate the laying and installation by workers. The workers only need to pull the bottom through-plate membrane 2 to make the bottom waterproof, and then hot-melt the bottom through-plate membrane 2 and the surface through-plate membrane 1 through the edge membrane 3 to complete the sealing of fly ash, so as to prevent rainy water from combining with fly ash, infiltrating water into the ground, and causing groundwater pollution.

[0029] The surface through-plate membrane 1 is provided with a first through-groove 11, one end of which is connected to the drainage-aiding device 4; the bottom through-plate membrane 2 is provided with a second through-groove 21, one end of which is connected to the drainage-aiding device 4, and the other end of the second through-groove 21 is connected to the degradation tank 6. By injecting mixed chemicals and water into the first through-groove 11, the chemicals infiltrate into the fly ash, causing the chemicals to leach heavy metals from the fly ash, which are finally discharged through the drainage-aiding device 4. At the same time, the drainage-aiding device 4 can also accelerate the speed at which the chemicals penetrate into the fly ash, thereby improving the efficiency of leaching heavy metals from the fly ash.

[0030] A slide groove is symmetrically provided at the top of the second through groove 21, and the slide groove is slidably connected to the sliding clamp 23. Filter cotton 22 is arranged between the sliding clamp 23. The filter cotton 22 can prevent fly ash from clogging the second through groove 21, thereby ensuring the unobstructed flow of the second through groove 21, thereby avoiding blockage and ensuring the efficiency of the second through groove 21 in discharging chemicals and heavy metals.

[0031] The exhaust assisting device 4 includes an air pump 41, which is connected to the first bus 45, the first bus 45 is connected to one end of the second through groove 21, and the other end of the second through groove 21 is connected to the interface. The air pump 41 can quickly flush out the heavy metals and chemicals in the second through groove 21.

[0032] The air pump 41 is connected to a three-way regulating valve 42, and the three-way regulating valve 42 is connected to one end of a first connecting pipe 43 and one end of a second connecting pipe 44 respectively. The other end of the first connecting pipe 43 is connected to a first bus 45, and the second connecting pipe 44 is connected to a second bus 46. The second bus 46 is connected to the first through groove 11. The output position of the air pump can be switched through the three-way regulating valve 42. When the three-way regulating valve 42 is switched to be connected to the second reflux row 46, the air pump 41 can accelerate the penetration of chemical agents into fly ash, thereby accelerating the reaction and leaching of heavy metals in the fly ash. Switching to the first bus 45 can enable the air pump to quickly discharge the heavy metals leached in the second through groove 21 into the degradation tank 6 for degradation.

[0033] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A fixing device for a landfill, characterized in that: It comprises a surface through-plate membrane (1), the surface through-plate membrane (1) is located at the upper end of the landfilled fly ash, a bottom through-plate membrane (2) is arranged at the lower end of the fly ash, both sides of the bottom through-plate membrane (2) are connected to the side membrane (3) by means of hot melting, and the side membrane (3) is simultaneously connected to the surface through-plate membrane (1) by means of hot melting; The surface through-plate membrane (1) is provided with a first through-groove (11), one end of which is in communication with the drainage aid device (4); the bottom through-plate membrane (2) is provided with a second through-groove (21), one end of which is in communication with the drainage aid device (4), and the other end of which is in communication with the degradation tank (6); A sliding groove is symmetrically provided on the top of the second through groove (21), the sliding groove is slidably connected to the sliding clamping strip (23), and a filter cotton (22) is arranged between the sliding clamping strips (23); The drainage assisting device (4) comprises an air pump (41), the air pump (41) is in communication with a first bus bar (45), the first bus bar (45) is in communication with one end of a second through groove (21), and the other end of the second through groove (21) is in communication with an interface; The air pump (41) is connected to a three-way regulating valve (42), the three-way regulating valve (42) is respectively connected to one end of a first connecting pipe (43) and one end of a second connecting pipe (44), the other end of the first connecting pipe (43) is connected to a first bus bar (45), the second connecting pipe (44) is connected to a second bus bar (46), and the second bus bar (46) is connected to the first through groove (11); The first through groove (11) is injected with mixed chemical agents and water.

2. A landfill fixing device according to claim 1, characterized in that: The surface through-plate membrane (1) and the bottom through-plate membrane (2) are formed by injection extrusion, and the surface through-plate membrane (1) and the bottom through-plate membrane (2) are both wound around two rotating rollers of a rotating roller device (5).

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