Waste store pit

Abstract

Disclosed in the present invention is a waste store pit, comprising a pit body which is provided with a waterproof store bottom and an annular store wall arranged to surround the waterproof store bottom; a filtering layer plate which has a shape similar to an inverted circular truncated cone, the filtering layer plate being arranged in the pit body, the filtering layer plate vertically dividing the pit body into a waste containing cavity and a leachate cavity, and the filtering layer plate being provided with a plurality of filter holes; and a suction assembly which is provided with a water pipe communicated with the leachate cavity and a pump body for providing suction power. The present invention enables a leachate and waste to be separated before incineration, so as to reduce the humidity of the waste, thus reducing adverse effects on incineration and drying sections.

Description

Garbage bin foundation pit Technical Field

[0001] The present invention relates to the technical field of garbage storage pits, and more particularly to a garbage storage pit. Background Art

[0002] Municipal waste contains a wide variety of substances, some even containing hazardous materials. Therefore, during processing, these hazardous, non-combustible waste must be separated. The remaining usable waste is weighed and placed in a waste storage tank. Typical waste storage tanks can typically hold approximately a week's worth of waste. The waste in the tanks is mixed and crushed, and the leachate generated during this process is collected. Only after the waste has been processed in the previous stages can it be sent to the incinerator through machinery and burned to generate heat and electricity. Before incineration, municipal waste is first stored in a waste silo pit. The fermentation process of the waste in the pit produces leachate, which has a strong odor and contains high levels of ammonia, nitrogen, and heavy metals. Leachate can account for up to one-tenth of the waste by weight. This leachate must undergo sewage treatment before it can be discharged, otherwise it will cause environmental pollution. Existing garbage silo foundation pit structures are simple. For example, one existing garbage silo foundation pit measures 80m × 30m × 30m (height), with a depth of -8,000m below ground level (i.e., the depth of the pit structure). The pit structure consists of a cast-in-place reinforced concrete tank, including a foundation pit, concrete sidewalls, a concrete floor, structural pile foundations, supporting cast-in-place piles, and a waterstop curtain. The waterstop curtain is a cement mixing column waterstop curtain, installed outside the supporting cast-in-place piles. The supporting cast-in-place piles are located outside the foundation pit, partially above and partially below the pit floor. The concrete sidewalls and concrete floor are located within the pit, forming a tank structure with an upper opening. Backfill soil is filled between the concrete sidewalls and the supporting cast-in-place piles. The upper portion of the concrete sidewalls supports the factory building frame columns. The concrete floor is supported by the structural pile foundation and cast along the pit floor. The concrete side walls and the concrete bottom plate are both provided with a building waterproof layer on both the inside and outside, which can not only prevent the garbage bucket from damaging the storage pit structure when grabbing garbage, but also prevent the garbage leachate from leaking out. Although the garbage leachate of the garbage silo foundation pit with the above structure will not leak out, thus avoiding environmental pollution, it will be mixed with the garbage for a long time and left in the garbage silo foundation pit without separation, making the humidity and temperature of the garbage more suitable for bacterial growth, forming a vicious cycle. In addition, during the transportation of garbage to the incinerator, since the garbage leachate is mixed with the garbage, a part of it will be carried out and leaked. In addition, if the garbage is in a state of high humidity before incineration, the energy consumption of the drying section before the incineration section will increase significantly, and even affect the calorific value of the incineration section. Therefore, it is necessary to design a garbage silo foundation pit that can separate the leachate from the garbage before incineration, so as to overcome the above-mentioned defects.

[0003] Summary of the Invention

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0005] In order to achieve these purposes and other advantages according to the present invention, there is provided a garbage bin foundation pit, comprising:

[0006] A foundation pit body, comprising a waterproof bottom and an annular wall surrounding the waterproof bottom;

[0007] The filtrate layer plate is in the shape of an inverted truncated cone and is arranged in the foundation pit body. The filtrate layer plate divides the foundation pit body into a garbage receiving chamber and a leachate chamber in the upper and lower parts. The filtrate layer plate is provided with a plurality of filter holes.

[0008] The suction component comprises a water pipe connected to the leachate cavity and a pump body for providing suction power.

[0009] Preferably, the filtrate layer plate includes a circular layer plate located at the central axis of the foundation pit body and a plurality of fan-shaped layer plates detachably fixed on the circular layer plate, and the plurality of fan-shaped layer plates are spliced ​​to form a ring shape.

[0010] Preferably, a first manhole is provided at the center of the filtrate layer plate, and a first manhole cover is provided on the first manhole;

[0011] The manway pipe is a reinforced concrete structure. The top of the manway pipe is integrally cast with the bottom of the filtrate layer plate. The manway pipe is connected to the first manway hole. The bottom of the manway pipe is detachably fixed to the bottom of the waterproof bin bottom. A second manway hole connected to the leachate cavity is provided on the side wall of the manway pipe. A second manhole cover is provided on the inner side of the manway pipe. A plurality of foot pedals are pre-embedded on the inner wall of the manway pipe along the axial interval.

[0012] Preferably,

[0013] The circular layer plate is integrally formed with an annular connecting layer plate, and the connecting layer plate is inclined radially outward and upward, and the inclination angle of the connecting layer plate is consistent with that of the fan-shaped layer plate. The connecting layer plate is provided with a plurality of first connecting holes that pass through the upper and lower parts, and the upper ends of the first connecting holes are expanded radially outward to form an annular first receiving platform;

[0014] A plurality of second connecting holes extending vertically through the fan-shaped layer plate is provided on one side of the fan-shaped layer plate close to the circular layer plate, a steel connecting piece is pre-embedded on the second connecting hole, the steel connecting piece extends vertically through the second layer plate, a support ring is provided at the lower end of the steel connecting piece, the support ring abuts against the first receiving platform, an annular connecting plate is provided at the upper end of the steel connecting piece, and a plurality of first locking holes with threads are provided on the annular connecting plate;

[0015] The support column is a reinforced concrete structure, the lower end of the support column is detachably fixed to the bottom of the waterproof bin bottom, the support column is coaxially arranged with the first connecting hole, the upper end of the support column is passed through the first connecting hole and the steel connecting piece, the top of the support column is provided with a locking groove, and the waterproof bin bottom is an arc-shaped surface with an opening facing upward;

[0016] The cover plate has a locking protrusion at its bottom, and a plurality of second locking holes with threads are provided on the circumferential edge of the cover plate. The locking protrusion abuts against the locking groove, and the second locking hole is fixed to the first locking hole by a bolt thread connection.

[0017] Preferably, the support column is provided with an annular second receiving platform, and a plurality of first limiting grooves are spaced apart on the upper surface of the second receiving platform;

[0018] A plurality of adjustment blocks, wherein the lower ends of the adjustment blocks extend into the first limiting groove and the upper ends abut against the bottom of the connecting layer plate.

[0019] Preferably, a second limiting groove is provided on the side wall of the support column, and an L-shaped positioning rod is provided at the bottom of the fan-shaped shelf. The positioning rod includes a vertical rod fixed on the fan-shaped shelf and a horizontal rod located below it. The horizontal rod extends into the second limiting groove, and an adjusting steel pipe with a thread is pre-embedded on the horizontal rod along its axial direction, and an adjusting screw is threaded on the adjusting steel pipe.

[0020] Preferably, a plurality of connecting legs are provided at intervals on the bottom of the side of the sector-shaped layer away from the circular layer, and a first flange is pre-embedded on the side wall of the sector-shaped layer away from the circular layer;

[0021] Multiple connecting corbels are pre-embedded on the annular warehouse wall at intervals, multiple third limiting grooves are opened on the top of the connecting corbels, and a second flange is provided on the connecting corbels, wherein the connecting legs extend into the third limiting grooves, and the second flange is fixed to the first flange by multiple bolts.

[0022] Preferably, the side walls on both sides of the fan-shaped layer plate are respectively provided with an upper overlapping strip and a lower overlapping strip, and the upper overlapping strip of the fan-shaped layer plate is overlapped on the lower overlapping strip of the adjacent fan-shaped layer plate.

[0023] Preferably, the fan-shaped layer plate is provided with a plurality of mounting holes which pass through from top to bottom, the upper end of the mounting hole is radially expanded to form an annular mounting platform, a plurality of mounting steel pipes with threads are embedded and fixed on the mounting platform, a filter plate is provided on the mounting platform cover, the filter hole is provided on the filter plate, a plurality of mounting threaded holes are provided on the edge of the filter plate, and the mounting threaded holes are fixed to the steel pipes by bolts.

[0024] Preferably, an arc-shaped waterproof groove is provided on the upper surface of the fan-shaped layer plate on one side close to the circular layer plate, and the waterproof grooves on the plurality of fan-shaped layer plates form a ring shape;

[0025] The waterproof cover layer has an annular waterproof protrusion at the bottom, and the waterproof protrusion is sealed and clamped in the waterproof groove.

[0026] The present invention has at least the following beneficial effects:

[0027] First, by installing filtrate layers and suction components, leachate can be separated, preventing leakage and environmental pollution. It also reduces the moisture content of the garbage, facilitating drying during transportation to the incinerator, reducing energy consumption during the drying process, and increasing the calorific value of the incineration process. Renovating existing garbage pits also requires minimal cost.

[0028] Second, by prefabricating circular and fan-shaped layers and installing them in a splicing manner, the weight of the prefabricated parts (circular and fan-shaped layers) can be significantly reduced, making them easier to transport, hoist and install, and also making it easier to control the installation accuracy.

[0029] Third, from the overall perspective, the lower support columns are arranged to form a truncated cone-shaped support structure, and the upper circular layer plates and fan-shaped layer plates form an inverted truncated cone-shaped dispersed downward pressure structure. The two cooperate to form a stable supporting and supported form, and both are detachable connection methods, do not require on-site pouring, and have high construction efficiency.

[0030] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a schematic diagram of the longitudinal cross-sectional structure of the garbage bin foundation pit according to one of the technical solutions of the present invention;

[0032] FIG2 is a top view of the garbage bin foundation pit according to one of the technical solutions of the present invention;

[0033] FIG3 is a schematic diagram of the connection between the connecting layer plate, the supporting column, and the fan-shaped layer plate according to one technical solution of the present invention;

[0034] FIG4 is a schematic diagram showing the connection between the fan-shaped layer plate and the annular warehouse wall according to one technical solution of the present invention;

[0035] FIG5 is a detailed view of the positioning rod according to one technical solution of the present invention;

[0036] FIG6 is a schematic diagram of splicing the fan-shaped layers according to one technical solution of the present invention;

[0037] FIG7 is a detailed view of the filter plate according to one technical solution of the present invention;

[0038] FIG8 is a detailed view of the waterproof cover layer according to one of the technical solutions of the present invention. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0040] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] As shown in Figures 1 to 8, the meanings of the accompanying drawings in the specification of the present invention are as follows: foundation pit body 100, waterproof bin bottom 11, annular bin wall 12, garbage holding chamber 13, leachate chamber 14, connecting corbel 15, second flange 16, third limiting groove 17, filtrate layer plate 200, circular layer plate 300, first manhole cover 31, manhole pipe 32, fan-shaped layer plate 400, annular connecting plate 41, steel connecting piece 42, support ring 43, positioning rod 45, adjusting screw 46, connecting support foot 47, first flange 48, upper overlapping strip 49, lower overlapping strip 40, mounting platform 401, filter plate 402, waterproof groove 403, connecting layer plate 500, first receiving platform 51, support column 600, locking protrusion 61, cover plate 62, fourth flange 63, second receiving platform 64, second limiting groove 65, adjustment block 66, waterproof cover layer 700, waterproof protrusion 71.

[0042] As shown in Figures 1 to 8, the present invention provides a garbage bin foundation pit, comprising:

[0043] The foundation pit body 100 has a waterproof bin bottom 11 and an annular bin wall 12 arranged around the waterproof bin bottom 11; specifically, the foundation pit body 100 is divided into two parts, above and below the ground. The diameter of the foundation piles below the waterproof bin bottom 11 is larger than the diameter of the foundation piles above, which is beneficial to improving the anti-settlement performance. The bottom diameter of the waterproof bin bottom 11 is larger than the diameter of the annular bin wall 12, which is also beneficial to improving the anti-settlement performance and enhancing the anti-leakage performance.

[0044] The filtrate layer plate 200 is in the shape of an inverted truncated cone and is arranged in the foundation pit body 100. The filtrate layer plate 200 divides the foundation pit body 100 into a garbage holding chamber 13 and a leachate chamber 14 at the upper and lower parts. The filtrate layer plate 200 is provided with a plurality of filter holes. When garbage is piled in the garbage holding chamber 13, it will inevitably ferment while waiting for incineration. The leachate produced by the fermentation can enter the leachate chamber 14 from the filter holes due to the action of gravity, thereby separating the garbage and the garbage leachate, and the garbage is in a relatively dry state.

[0045] The suction assembly (not shown in the figure) has a water pipe connected to the leachate chamber 14 and a pump body that provides suction power. When the leachate in the leachate chamber 14 accumulates to a certain amount, the suction assembly can be turned on to extract it and discharge it into the sewage treatment system. Garbage leachate contains a lot of ammonia nitrogen and heavy metals, and garbage leachate can account for 1 / 10 or more of the weight of garbage. It needs to be treated by the sewage treatment system before it can be discharged, otherwise it will cause environmental pollution. Through the setting of the suction assembly, the leachate in the leachate chamber 14 can be kept at a lower level to avoid entering the garbage holding chamber 13. The suction assembly is composed of a commonly used water pipe and a water pump. The water pipe can be laid and fixed along the annular warehouse wall 12, and the water pump is set outside the annular warehouse wall 12, which is conducive to heat dissipation.

[0046] In the above technical solution, the foundation pit body 100 can be an existing garbage silo foundation pit. Simply by adding the filtrate layer 200 and suction assembly to the existing garbage silo foundation pit, the leachate can be separated, preventing leakage and environmental pollution. This reduces the moisture content of the garbage, facilitates drying during transportation to the incinerator, reduces energy consumption during the drying process, and increases the calorific value of the incineration process. Modifying an existing garbage silo foundation pit also requires minimal cost.

[0047] In another technical solution, the filtrate layer plate 200 includes a circular layer plate 300 located at the central axis of the foundation pit body 100 and a plurality of fan-shaped layer plates 400 detachably fixed on the circular layer plate 300, and the plurality of fan-shaped layer plates 400 are spliced ​​to form a ring. Since the size of the garbage bin foundation pit is generally large, if the filtrate layer plate 200 is formed in one piece and then installed as a whole, it is difficult to implement and control with the existing technology. If pouring is carried out on site, it will take a long time and the construction period will be long, which will affect the construction efficiency. Therefore, by prefabricating the circular layer plates 300 and the fan-shaped layer plates 400 and installing them in a splicing manner, the weight of the prefabricated parts (circular layer plates 300 and fan-shaped layer plates 400) can be significantly reduced, which makes it easy to transport, hoist and install, and it is also convenient to control the installation accuracy.

[0048] In another technical solution, a first manhole is provided at the center of the filtrate layer plate 200, and a first manhole cover 31 is provided on the first manhole;

[0049] The manway pipe 32 is a reinforced concrete structure. The top of the manway pipe 32 is integrally cast with the bottom of the filtrate layer plate 200. The manway pipe 32 is connected to the first manhole. The bottom of the manway pipe 32 is detachably fixed to the bottom of the waterproof bin bottom 11. A second manhole connected to the leachate chamber 14 is provided on the side wall of the manway pipe 32. A second manhole cover is provided on the inner side of the second manhole located on the inner side of the manhole pipe 32. A plurality of foot pedals are pre-embedded on the inner wall of the manway pipe 32 along the axial interval. The foot pedals are used to provide a stepping place for construction workers and maintenance personnel.

[0050] In the above technical solution, the filtrate layer plate 200 is supported and fixed by the manway 32, and the manway 32 has the function of allowing construction personnel and maintenance personnel to enter the leachate chamber 14 through the manway 32 for installation and maintenance.

[0051] In another technical solution,

[0052] The circular layer plate 300 is integrally formed with an annular connecting layer plate 500, and the connecting layer plate 500 is tilted radially outward and upward. The inclination angle of the connecting layer plate 500 is consistent with that of the fan-shaped layer plate 400, which helps to fit the connecting layer plate 500 and the fan-shaped layer plate 400 together. The connecting layer plate 500 is provided with a plurality of first connecting holes that pass through the upper and lower parts, and the upper ends of the first connecting holes are radially expanded outward to form an annular first receiving platform 51;

[0053] The fan-shaped layer plate 400 is provided with a plurality of second connecting holes that pass through the upper and lower parts on one side close to the circular layer plate 300. A steel connecting member 42 is pre-embedded in the second connecting hole. The steel connecting member 42 passes through the upper and lower parts. A support ring 43 is provided at the lower end of the steel connecting member 42. The support ring 43 abuts against the first receiving platform 51. An annular connecting plate 41 is provided at the upper end of the steel connecting member 42. A plurality of first locking holes with threads are provided on the annular connecting plate 41. The axial cross-section of the steel connecting member 42 is in the shape of a "sub" character, including an annular connecting plate 41, a support ring 43, and an intermediate cylinder connecting the annular connecting plate 41 and the support ring 43.

[0054] The waterproof bin bottom 11 is curved with an upward-facing opening. Casting the waterproof bin bottom 11 into a curved concrete reinforced structure allows the multiple support columns 600 described below to form a truncated cone-shaped support configuration, enhancing the support stability of the spliced ​​structure. Specifically, the waterproof bin bottom 11 is pre-embedded with multiple third flanges. A plurality of fourth retaining grooves are defined on the waterproof bin bottom 11 corresponding to the third flanges. The lower ends of the support columns 600 extend into the fourth retaining grooves. The support columns 600 are provided with fourth flanges 63, which are secured to the third flanges via multiple bolts. This provides a removable connection between the support columns 600 and the waterproof bin bottom 11.

[0055] A support column 600 is a reinforced concrete structure. The lower end of the support column 600 is detachably fixed to the bottom of the waterproof chamber bottom 11. The support column 600 is coaxially arranged with the first connection hole. The upper end of the support column 600 is passed through the first connection hole and the steel connector 42. A locking groove is formed at the top of the support column 600.

[0056] The cover plate 62 has a locking protrusion 61 at its bottom, and a plurality of second locking holes with threads are provided on the circumferential edge of the cover plate 62. The locking protrusion 61 abuts against the locking groove to preliminarily position the cover plate 62 and the support column 600. The second locking hole is fixed to the first locking hole through a bolt thread connection to realize a detachable connection and fixation between the cover plate 62, the support column 600 and the fan-shaped layer plate 400.

[0057] In the above technical solution, by setting a connecting layer plate 500, the connection between the circular layer plate 300 and the fan-shaped layer plate 400 is realized, and at the same time, the support and fixation with the support column 600 are realized. From the overall point of view, the lower support column 600 is arranged to form a truncated cone support structure, and the upper circular layer plate 300 and the fan-shaped layer plate 400 form an inverted truncated cone dispersed downward pressure structure. The two cooperate to form a stable supporting and supported form, and both are detachable connection methods, do not require on-site casting, and have high construction efficiency.

[0058] In another technical solution, the support column 600 is provided with an annular second receiving platform 64, and a plurality of first limiting grooves are spaced apart on the upper surface of the second receiving platform 64; the second receiving platform 64 can provide an upward force for supporting the connection layer.

[0059] A plurality of adjustment blocks 66 are provided, wherein the lower ends of the adjustment blocks 66 extend into the first limiting grooves and the upper ends thereof abut against the bottom of the connection layer plate 500 .

[0060] In the above technical solution, when there is a deviation in the inclination angle between the prefabricated part, i.e., the prefabricated connecting layer plate 500 and the second receiving platform 64, adjustment blocks 66 of different lengths can be inserted so that the connecting layer plate 500 can stably transmit force to the second receiving platform 64, i.e., transmit force to the support column 600, so that the support column 600 can provide good support for the connecting layer plate 500.

[0061] In another technical solution, a second limiting groove 65 is provided on the side wall of the support column 600, and an L-shaped positioning rod 45 is provided at the bottom of the fan-shaped shelf 400. The positioning rod 45 includes a vertical rod fixed on the fan-shaped shelf 400 and a horizontal rod located below it. The horizontal rod extends into the second limiting groove 65, and a threaded adjustment steel pipe is pre-embedded on the horizontal rod along its axial direction, and an adjustment screw 46 is threaded on the adjustment steel pipe.

[0062] In the above technical solution, when hoisting and installing the fan-shaped shelf 400, the crossbar can be adjusted to be inserted into the second limiting groove 65, which plays a preliminary positioning role and also enables the support column 600 to provide lateral support to the fan-shaped shelf 400, thus achieving two goals at one stroke. If the prefabricated fan-shaped shelf 400 has deviations in radial dimensions, the screw 46 can be adjusted to move toward the second limiting groove 65 and abut against the second limiting groove 65, thereby achieving reliable support and overcoming dimensional defects.

[0063] In another technical solution, a plurality of connecting legs 47 are provided at intervals on the bottom of the side of the fan-shaped layer plate 400 away from the circular layer plate 300, and a first flange 48 is pre-embedded on the side wall of the fan-shaped layer plate 400 away from the circular layer plate 300;

[0064] Multiple connecting corbels 15 are pre-embedded at intervals on the annular warehouse wall 12, and multiple third limiting grooves 17 are opened on the top of the connecting corbel 15. A second flange 16 is provided on the connecting corbel 15, wherein the connecting support leg 47 extends into the third limiting groove 17, and the second flange 16 is fixed to the first flange 48 by multiple bolts.

[0065] In the above technical solution, by setting the connecting corbel 15, the support force on the other side of the fan-shaped layer plate 400 can be provided. By setting the third limiting groove 17, preliminary limiting can be performed to prevent the fan-shaped layer plate 400 from deviating and moving, thereby improving assembly safety.

[0066] In another technical solution, upper overlapping strips 49 and lower overlapping strips 40 are respectively provided on both side walls of the fan-shaped layer panel 400. The upper overlapping strips 49 of the fan-shaped layer panel 400 overlap the lower overlapping strips 40 of the adjacent fan-shaped layer panel 400. Multiple fan-shaped layer panels 400 are sequentially installed and spliced ​​in a clockwise direction. The upper overlapping strips 49 and the lower overlapping strips 40 can be stably spliced. When all the splicing is completed, a stable splicing structure with mutual restraint can be formed.

[0067] In another technical solution, the fan-shaped layer plate 400 is provided with multiple mounting holes extending vertically through it. The upper ends of these mounting holes are radially expanded to form an annular mounting platform 401. Multiple threaded mounting steel pipes are pre-embedded and fixed to this mounting platform 401. A filter plate 402 is mounted on top of this mounting platform 401. This filter plate 402 is provided with the filter holes. Multiple threaded mounting holes are provided on the edge of this filter plate 402. These threaded mounting holes are connected to the steel pipes via bolts. Because the waste composition is relatively complex and highly corrosive to the filter plate 402, it is designed to facilitate disassembly and replacement of the filter plate 402, thereby providing reliable filtration.

[0068] In another technical solution, an arc-shaped waterproof groove 403 is opened on the upper surface of the fan-shaped layer plate 400 on the side close to the circular layer plate 300, and the waterproof grooves 403 on the plurality of fan-shaped layer plates 400 form a ring;

[0069] The waterproof cover layer 700 has an annular waterproof protrusion 71 at its bottom, and the waterproof protrusion 71 is sealed and clamped in the waterproof groove 403.

[0070] In the above technical solution, in order to prevent leachate from corroding and contaminating the first manhole cover 31 and the manhole pipe 32, a waterproof cover layer 700 is provided to prevent leachate from entering the circular layer plate 300 and the connecting layer plate 500. The waterproof cover layer 700 is preferably made of rubber material, which has certain flexibility and elasticity and can better adapt to the surface shape of the circular layer plate 300 and the connecting layer plate 500.

[0071] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. Waste bin foundation pit, characterized in that, include: A foundation pit body, which has a waterproof bottom and an annular wall surrounding the waterproof bottom; A filtrate layer plate, which is in the shape of an inverted truncated cone, is arranged in the foundation pit body, and the filtrate layer plate divides the foundation pit body into a garbage receiving chamber and a leachate chamber from top to bottom, and a plurality of filter holes are arranged on the filtrate layer plate; The suction assembly comprises a water pipe connected to the leachate cavity and a pump body for providing suction power.

2. The waste bin foundation pit according to claim 1, characterized in that, The filtrate layer plate includes a circular layer plate located at the central axis of the foundation pit body and a plurality of fan-shaped layer plates detachably fixed on the circular layer plate, and the plurality of fan-shaped layer plates are spliced ​​to form a ring.

3. The waste bin foundation pit according to claim 2, characterized in that, A first manhole is provided at the center of the filtrate layer plate, and a first manhole cover is provided on the first manhole; The manway pipe is a reinforced concrete structure. The top of the manway pipe is integrally cast with the bottom of the filtrate layer plate. The manway pipe is connected to the first manhole. The bottom of the manway pipe can be detachably fixed to the bottom of the waterproof bin bottom. A second manhole connected to the leachate cavity is provided on the side wall of the manway pipe. A second manhole cover is provided on the second manhole located on the inner side of the manway pipe. A plurality of foot pedals are pre-embedded on the inner wall of the manway pipe at axial intervals.

4. The waste bin foundation pit according to claim 3, characterized in that, The circular layer plate edge is integrally formed with an annular connecting layer plate, the connecting layer plate is inclined radially outward and upward, the connecting layer plate has the same inclination angle as the fan-shaped layer plate, and the connecting layer plate is provided with a plurality of first connecting holes that pass through from top to bottom, and the upper end of the first connecting hole is expanded radially outward to form an annular first receiving platform; A plurality of second connecting holes extending vertically are provided on one side of the fan-shaped layer plate close to the circular layer plate, a steel connecting piece is pre-embedded on the second connecting hole, the steel connecting piece extends vertically, a support ring is provided at the lower end of the steel connecting piece, the support ring abuts against the first receiving platform, an annular connecting plate is provided at the upper end of the steel connecting piece, and a plurality of first locking holes with threads are provided on the annular connecting plate; A support column, which is a reinforced concrete structure, the lower end of the support column is detachably fixed to the bottom of the waterproof bin bottom, the support column is coaxially arranged with the first connection hole, the upper end of the support column is penetrated through the first connection hole and the steel connection piece, a locking groove is provided on the top of the support column, and the waterproof bin bottom is in an arc shape with the opening facing upward; The cover plate has a locking protrusion at the bottom, and a plurality of second locking holes with threads are provided on the circumferential edge of the cover plate. The locking protrusion abuts against the locking groove, and the second locking holes are fixed to the first locking holes by bolt thread connection.

5. The waste bin foundation pit according to claim 4, characterized in that, The support column is provided with an annular second receiving platform, and a plurality of first limiting grooves are spaced apart on the upper surface of the second receiving platform; A plurality of adjusting blocks, wherein the lower ends of the adjusting blocks extend into the first limiting grooves and the upper ends abut against the bottom of the connecting layer plate.

6. The waste bin foundation pit according to claim 4, characterized in that, A second limiting groove is provided on the side wall of the support column, and an L-shaped positioning rod is provided at the bottom of the fan-shaped shelf. The positioning rod includes a vertical rod fixed on the fan-shaped shelf and a cross rod located therebelow. The cross rod extends into the second limiting groove, and a threaded adjustment steel pipe is pre-embedded on the cross rod along its axial direction, and an adjustment screw is threaded on the adjustment steel pipe.

7. The waste bin foundation pit according to claim 4, characterized in that, A plurality of connecting legs are arranged at intervals on the bottom of the side of the fan-shaped layer plate away from the circular layer plate, and a first flange is pre-embedded on the side wall of the fan-shaped layer plate away from the circular layer plate; A plurality of connecting corbels are pre-buried on the annular warehouse wall at intervals, a plurality of third limiting grooves are opened on the top of the connecting corbels, a second flange is provided on the connecting corbels, wherein the connecting legs extend into the third limiting grooves, and the second flange is fixed to the first flange by a plurality of bolts.

8. The waste bin foundation pit according to claim 2, characterized in that, The side walls on both sides of the fan-shaped layer plate are respectively provided with an upper overlapping strip plate and a lower overlapping strip plate, and the upper overlapping strip plate of the fan-shaped layer plate is overlapped with the lower overlapping strip plate of the adjacent fan-shaped layer plate.

9. The waste bin foundation pit according to claim 2, characterized in that, The fan-shaped layer plate is provided with a plurality of mounting holes which pass through from top to bottom, the upper end of the mounting hole is radially expanded to form an annular mounting platform, a plurality of mounting steel pipes with threads are embedded and fixed on the mounting platform, a filter plate is provided on the mounting platform, the filter plate is provided with the filter holes, a plurality of mounting threaded holes are provided on the edge of the filter plate, and the mounting threaded holes are fixed to the steel pipes by bolts.

10. The waste bin foundation pit according to claim 2, characterized in that, An arc-shaped waterproof groove is provided on the upper surface of one side of the fan-shaped layer plate close to the circular layer plate, and the waterproof grooves on the plurality of fan-shaped layer plates form a ring shape; The waterproof cover layer has an annular waterproof protrusion at the bottom, and the waterproof protrusion is sealed and clamped in the waterproof groove.

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