A garbage unloading system

Abstract

The present invention discloses a garbage unloading system, including an unloading platform, wherein the unloading platform includes two layers, a garbage truck travels on the upper layer of the unloading platform and dumps garbage, a ventilation component is provided on the top of the unloading platform, and two opposite sides of the unloading platform are respectively provided with a unloading hopper and a closed garbage pit, the garbage pit and the unloading hopper are connected by a transmission component, the transmission component is arranged on the lower layer of the unloading platform, and a filtering component is arranged at the bottom of the unloading hopper; the garbage truck pours the garbage into the unloading hopper, and the garbage is separated into solid and liquid by the filtering component, and the leachate flows into the leachate collection system, and the solid garbage is transported to the garbage pit by the transmission component. The garbage unloading system of the present invention has the advantages of compact structure, high space utilization, high operation stability, excellent ventilation performance, and can realize solid-liquid separation and preliminary screening of garbage.

Description

Technical Field

[0001] The invention mainly relates to the technical field of garbage disposal, and in particular to a garbage unloading system. Background Art

[0002] With the increasing maturity of domestic waste harmless treatment technology, the collection, transportation, treatment and disposal of domestic waste have developed rapidly. The composition of domestic waste treated by waste incineration power plants is complex and contains more water. Usually, the garbage is directly poured into the garbage pit by the garbage truck, and the leachate in the garbage is discharged from the leachate discharge hole at the bottom of the garbage pit. Due to the excessive amount of water entering the garbage pit, the amount of leachate discharged is also large, and the accumulation of leachate is easy to block the bottom of the garbage pit, resulting in poor drainage of the garbage pit. In addition, the garbage is not preliminarily sorted before entering the garbage pit, and the garbage entering the furnace is directly thrown into the incinerator by the garbage crane. If the garbage thrown into the incinerator is garbage with low calorific value such as construction waste, it will affect the normal operation and production of the incinerator and increase the workload of the incinerator. In general, as the place where garbage transport trucks operate, how to ensure the safety and order of unloading operations and the closed and odor-proof system has become a problem that waste incineration power plants must face. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a garbage unloading system which has a compact structure, high space utilization, high operating stability, excellent ventilation performance and can achieve solid-liquid separation and preliminary screening of garbage.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A garbage unloading system comprises an unloading platform, wherein the unloading platform comprises an upper and a lower layer, a garbage truck travels on the upper layer of the unloading platform and dumps garbage, a ventilation assembly is arranged on the top of the unloading platform, and a unloading hopper and a closed garbage pit are arranged on opposite sides of the unloading platform respectively, the garbage pit and the unloading hopper are connected by a transmission assembly, and the transmission assembly is arranged on the lower layer of the unloading platform, and a filtering assembly is arranged at the bottom of the unloading hopper; the garbage truck pours the garbage into the unloading hopper, and the solid-liquid separation of the garbage is carried out by the filtering assembly, the leachate flows into the leachate collection system, and the solid garbage is transported to the garbage pit by the transmission assembly.

[0006] As a further improvement of the present invention, a bridge breaking device is provided on the upper part of the discharge hopper, and the rotation of the bridge breaking device can prevent the garbage from bridging in the discharge hopper.

[0007] As a further improvement of the present invention, a pusher is provided on the side of the discharge hopper, and the solid waste on the filter assembly is pushed into the conveying assembly through the pusher.

[0008] As a further improvement of the present invention, an inclined feeding port is provided at the connection between the conveying component and the garbage pit, and the inclined feeding port includes a flip door and an inclined plate. The flip door is located above the inclined plate, one end of the inclined plate is connected to the conveying component, and the other end is connected to the garbage pit. Solid garbage enters the garbage pit from the conveying component through the flip door and the inclined plate.

[0009] As a further improvement of the present invention, the flip door is an airtight flip door, and the flip door is connected to the driving assembly, and the inclination angle a of the inclined plate is 25°±5°.

[0010] As a further improvement of the present invention, the lower layer of the unloading platform is provided with a guide rail with a U-shaped cross-section, and the inner side of the guide rail is provided with an inclined conveying component, and the conveying component includes a conveying belt, and the inclination angle c of the conveying belt is 25°±5°.

[0011] As a further improvement of the present invention, the bottom of the discharge hopper and the bottom of the guide rail are both provided with a guide assembly, and the leachate flows into the leachate collection system through the guide assembly.

[0012] As a further improvement of the present invention, an airtight discharge door is provided on the side of the garbage pit, and the discharge door is located above the discharge hopper, and the garbage truck pours the garbage into the garbage pit through the discharge door.

[0013] As a further improvement of the present invention, the bottom of the garbage pit is an inclined structure, and the inclination angle b is 5°±1°. A plurality of grids are provided on the inclined structure at the bottom of the garbage pit, and the leachate flows into the leachate collection system through the grids.

[0014] As a further improvement of the present invention, the ventilation component includes a fresh air fan and an exhaust fan respectively located on both sides of the top of the unloading platform. The operating power of the exhaust fan is greater than the operating power of the fresh air fan, so that the garbage unloading system is in a negative pressure state.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The garbage unloading system of the present invention, by setting the unloading platform as an upper and lower double-layer structure, the garbage truck drives on the upper layer of the unloading platform and dumps the garbage, and the conveying component is set on the lower layer of the unloading platform, which effectively improves the space utilization rate of the unloading platform and saves the operating cost of the unloading platform. By setting the unloading hopper and the garbage pit on both sides of the unloading platform respectively, the garbage first enters the unloading hopper for solid-liquid separation, and then is transported to the garbage pit by the conveying component. In addition, in the process of conveying the garbage by the conveying component, garbage with low calorific value such as construction garbage can be manually selected, thereby realizing the preliminary separation and screening of garbage, alleviating the pressure of the garbage pit to discharge leachate, and increasing the content of combustible garbage entering the garbage pit, thereby improving the efficiency of subsequent garbage combustion power generation.

[0017] 2. The garbage unloading system of the present invention realizes the second solid-liquid separation of garbage through the cooperation of the conveyor belt and the guide rail, thereby increasing the solid content of garbage entering the garbage pit. By setting a spare unloading door on the side of the garbage pit, when the conveyor component or the unloading hopper fails, the garbage can be put in through the unloading door; the two-way feeding assembly composed of the unloading hopper and the unloading door ensures the stable and continuous operation of the garbage unloading system. At the same time, an inclined structure with a grid is also set at the bottom of the garbage pit, which can realize the third solid-liquid separation of garbage, increase the solid content of garbage entering the incinerator, and then increase the calorific value generated by the combustion of garbage and increase the power generation.

[0018] 3. The garbage unloading system of the present invention maintains a slightly negative pressure state through the cooperation of the fresh air fan and the exhaust fan, which will not cause odor leakage and can ensure that the garbage unloading system is in a good ventilation state, effectively reducing the harm caused by garbage odor to the workers in the garbage unloading system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structural principle of the garbage unloading system of the present invention.

[0020] Figure 2 It is a schematic diagram of the structural principle of the transmission component of the present invention.

[0021] Legend:

[0022] 1. Unloading platform; 2. Garbage pit; 21. Grille; 3. Unloading door; 4. Flip door; 5. Inclined plate; 6. Conveyor belt; 7. Diversion assembly; 8. Filter assembly; 9. Pusher; 10. Unloading hopper; 11. Bridge breaking device; 12. Fresh air fan; 13. Exhaust fan; 14. Guide rail. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0024] Example

[0025] like Figure 1 and Figure 2As shown, the garbage unloading system of the present invention includes a unloading platform 1, and the unloading platform 1 includes two layers, the upper and lower layers, the garbage truck travels on the upper layer of the unloading platform 1 and dumps the garbage, the top of the unloading platform 1 is provided with a ventilation component, and the opposite sides of the unloading platform 1 are respectively provided with a unloading hopper 10 and a closed garbage pit 2, the garbage pit 2 and the unloading hopper 10 are connected by a transmission component, the transmission component is arranged in the lower layer of the unloading platform 1, and the bottom of the unloading hopper 10 is provided with a filter component 8. The garbage truck pours the garbage into the unloading hopper 10, and the solid-liquid separation of the garbage is carried out through the filter component 8, the leachate flows into the leachate collection system (not shown in the figure), and the solid garbage is transported to the garbage pit 2 by the transmission component. It can be understood that in this embodiment, the unloading platform 1 adopts a high-position design to facilitate the dumping of garbage, while increasing the effective volume of the garbage pit 2 above the surface, saving the civil engineering investment cost of the garbage pit 2. Further, the unloading platform 1 can also adopt a closed structure, and the doors and windows are all airtightly designed to prevent odor leakage.

[0026] In this embodiment, by setting the unloading platform 1 as an upper and lower double-layer structure, the garbage truck travels on the upper layer of the unloading platform 1 and dumps the garbage, and the conveying component is arranged on the lower layer of the unloading platform 1, which effectively improves the space utilization rate of the unloading platform 1 and saves the operating cost of the unloading platform 1. By setting the unloading hopper 10 and the garbage pit 2 on both sides of the unloading platform 1, the garbage dumped by the garbage truck first enters the unloading hopper 10 for solid-liquid separation, and then is transported to the garbage pit 2 through the conveying component. Moreover, in the process of conveying garbage by the conveying component, low calorific value garbage such as construction garbage can be manually selected, thereby realizing the preliminary separation and screening of garbage, increasing the content of combustible garbage entering the garbage pit, and thus improving the efficiency of subsequent garbage combustion power generation. It can be understood that in this embodiment, in order to better improve the transmission efficiency of the conveying component, the conveying component can be driven by a variable frequency motor (not shown in the figure).

[0027] In this embodiment, a bridge breaking device 11 is provided on the upper part of the discharge hopper 10, and the rotation of the bridge breaking device 11 is used to prevent the garbage from bridging inside the discharge hopper 10. It can be understood that the bridge breaking device 11 is connected to a drive motor (not shown in the figure), and driven by the drive motor, the bridge breaking device 11 continuously rotates to prevent the garbage from "bridging" inside the discharge hopper 10, and to keep the garbage in the discharge hopper 10 loose, which is easy to separate solids and liquids and easy to discharge. Furthermore, in order to better control the rotation speed of the bridge breaking device 11, the drive motor connected to the bridge breaking device 11 can adopt a variable frequency motor.

[0028] In this embodiment, in order to better achieve solid-liquid separation pretreatment of garbage, a pusher 9 is provided on the side of the discharge hopper 10, and the solid garbage on the filter component 8 is pushed into the conveying component by the pusher 9. Furthermore, a diversion component 7 is also provided at the bottom of the discharge hopper 10, and the leachate flows from the filter component 8 through the diversion component 7 into the leachate collection system. It can be understood that in this embodiment, the diversion component 7 can be a corrosion-resistant diversion pipe, the filter component 8 can be a corrosion-resistant filter net, and the pusher 9 can adopt a conventional pushing device, as long as the garbage in the discharge hopper 10 can be continuously and stably entered into the conveying component.

[0029] In this embodiment, the lower layer of the unloading platform 1 is provided with a guide rail 14 with a U-shaped cross section, and the inner side of the guide rail 14 is provided with an inclined transmission component, and the two side edges of the guide rail 14 are higher than the transmission component. The transmission component includes a transmission belt 6, and the inclination angle c of the transmission belt 6 is preferably 25°. Further, a plurality of diversion components 7 are provided at the bottom of the guide rail 14, and the leachate flows into the leachate collection system through the diversion components 7. The solid garbage separated in the unloading hopper 10 is transported to the garbage pit 2 through the transmission belt 6. In the process of transporting the garbage, the leachate can flow into the diversion component 7 at the bottom of the guide rail 14 along the gap between the inclined surface of the transmission belt 6 and the side wall of the guide rail 14, and finally collected into the leachate collection system. Through the cooperation of the transmission belt 6 and the guide rail 14, the solid-liquid separation of the garbage is realized again, and it is also convenient for the staff to select low calorific value garbage such as construction garbage, and increase the content of combustible garbage. It can be understood that in order to improve the service life, the diversion component 7 can be a corrosion-resistant diversion pipe, and the guide rail 14 can be made of corrosion-resistant stainless steel. The guide rail 14 may also adopt other structural shapes, as long as it can ensure that the conveying component can continuously and stably transport the garbage and ensure that the garbage can be separated into solid and liquid again during the transportation process.

[0030] In this embodiment, an inclined feeding port is provided at the connection between the conveying assembly and the garbage pit 2, and solid garbage enters the garbage pit 2 from the conveying assembly through the inclined feeding port. Specifically, the inclined feeding port includes a flip door 4 and an inclined plate 5, and the flip door 4 is located above the inclined plate 5, and the opening and closing of the inclined feeding port is realized by the flip door 4; one end of the inclined plate 5 is connected to the conveying assembly, and the other end is connected to the garbage pit 2, and the solid garbage enters the garbage pit 2 from the conveying assembly through the flip door 4 and the inclined plate 5.

[0031] Furthermore, the flap door 4 is an airtight flap door, and the flap door 4 is connected to a driving assembly (not shown in the figure). Driven by the driving motor, the flap door 4 is automatically opened and closed, and the angle of opening of the flap door 4 can be flexibly adjusted according to the needs of garbage feeding. When the conveying assembly operates normally, the driving assembly can fully open the flap door 4 so that the flap door 4 and the conveying assembly form a 90° angle, at which time the garbage can fall into the garbage pit 2 along the inclined plate 5. When the conveying assembly cannot operate normally, the driving assembly completely closes the flap door 4 so that the flap door 4 and the conveying assembly are kept at the same level, which not only prevents the garbage from falling into the garbage pit 2 from the inclined feeding port, but also prevents the odor in the garbage pit 2 from escaping. In this embodiment, the angle a between the inclined plate 5 and the garbage pit 2 is preferably 25°, so that the garbage can slide smoothly into the garbage pit 2 and avoid the phenomenon of garbage blocking at the inclined feeding port.

[0032] In this embodiment, an airtight discharge door 3 is provided on the side of the garbage pit 2, and the discharge door 3 is located above the discharge hopper 10, and the garbage truck pours the garbage into the garbage pit 2 through the discharge door 3. The bottom of the garbage pit 2 is an inclined structure, and the angle b with the horizontal direction is preferably 5°. A plurality of grids 21 are provided on the inclined structure at the bottom of the garbage pit 2, and the leachate flows into the leachate collection system through the grids 21. It can be understood that in order to improve the operating stability and service life of the garbage pit, the grid 21 can be made of corrosion-resistant stainless steel material. At the same time, in this embodiment, necessary anti-seepage measures are taken at the bottom and around the garbage pit 2 and the leachate collection system according to the design specifications, which not only prevents the seepage of leachate, but also avoids the infiltration of groundwater.

[0033] In this embodiment, by setting a spare discharge door 3 on the side of the garbage pit 2, when the conveying component or the discharge hopper 10 fails, the garbage can be discharged through the discharge door 3. The two-way feeding system composed of the discharge hopper 10 and the discharge door 3 ensures the stable and continuous operation of the garbage discharge system. At the same time, an inclined structure with a grid 21 is also set at the bottom of the garbage pit 2, which can realize the third solid-liquid separation of the garbage, increase the solid content of the garbage entering the incinerator, and then increase the calorific value generated by the combustion of the garbage and increase the power generation.

[0034] In this embodiment, the ventilation assembly includes a fresh air fan 12 and an exhaust fan 13 respectively located on both sides of the top of the unloading platform 1. The operating power of the exhaust fan 13 is greater than the operating power of the fresh air fan 12, so that the garbage unloading system is in a slightly negative pressure state. It can be understood that in the ventilation system composed of the fresh air fan 12 and the exhaust fan 13, the fresh air fan 12 continuously introduces fresh air into the garbage unloading system, and the exhaust fan 13 continuously extracts the gas in the garbage unloading system. However, since the operating power of the exhaust fan 13 is greater than the operating power of the fresh air fan 12, the garbage unloading system is kept in a slightly negative pressure state, which will not cause odor leakage, and can ensure that the garbage unloading system is in a good ventilation state, effectively reducing the damage caused by garbage odor to the workers in the garbage unloading system.

[0035] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the spirit and technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention still fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A garbage unloading system, characterized in that: The invention comprises a discharge platform (1), wherein the discharge platform (1) comprises an upper and lower layer, a garbage truck travels on the upper layer of the discharge platform (1) and dumps garbage, a ventilation component is provided on the top of the discharge platform (1), a discharge hopper (10) and a closed garbage pit (2) are provided on opposite sides of the discharge platform (1), the garbage pit (2) and the discharge hopper (10) are connected via a transmission component, the transmission component is arranged on the lower layer of the discharge platform (1), and a filter component (8) is provided at the bottom of the discharge hopper (10); the garbage truck dumps the garbage into the discharge hopper (10), solid-liquid separation of the garbage is carried out by the filter component (8), the leachate flows into the leachate collection system, and the solid garbage is transported to the garbage pit (2) by the transmission component; A bridge breaking device (11) is provided on the upper part of the discharge hopper (10), and the bridge breaking device (11) is rotated to prevent garbage from bridging inside the discharge hopper (10); The lower layer of the unloading platform (1) is provided with a guide rail (14) with a U-shaped cross section, and the inner side of the guide rail (14) is provided with an inclined conveying component, the conveying component comprises a conveying belt (6), and the inclination angle c of the conveying belt (6) is 25°±5°; The bottom of the discharge hopper (10) and the bottom of the guide rail (14) are both provided with a flow guide component (7), and the leachate flows into the leachate collection system through the flow guide component (7); An airtight discharge door (3) is provided on the side of the garbage pit (2), and the discharge door (3) is located above the discharge hopper (10). The garbage truck dumps the garbage into the garbage pit (2) through the discharge door (3).

2. The garbage unloading system according to claim 1, characterized in that: A pusher (9) is provided on the side of the discharge hopper (10), and the solid waste on the filter assembly (8) is pushed into the conveying assembly by the pusher (9).

3. The garbage unloading system according to claim 1 or 2, characterized in that: An inclined feeding port is provided at the connection between the conveying component and the garbage pit (2), the inclined feeding port comprising a flip door (4) and an inclined plate (5), the flip door (4) being located above the inclined plate (5), one end of the inclined plate (5) being connected to the conveying component and the other end being connected to the garbage pit (2), and solid garbage enters the garbage pit (2) from the conveying component through the flip door (4) and the inclined plate (5).

4. The garbage unloading system according to claim 3, characterized in that: The flip door (4) is an airtight flip door, and the flip door (4) is connected to a drive assembly, and the tilt angle a of the tilt plate (5) is 25°±5°.

5. The garbage unloading system according to claim 1 or 2, characterized in that: The bottom of the garbage pit (2) is an inclined structure, and the inclination angle b is 5°±1°. A plurality of grids (21) are provided on the inclined structure at the bottom of the garbage pit (2), and the leachate flows into the leachate collection system through the grids (21).

6. The garbage unloading system according to claim 1 or 2, characterized in that: The ventilation assembly comprises a fresh air fan (12) and an exhaust fan (13) respectively located on both sides of the top of the unloading platform (1); the operating power of the exhaust fan (13) is greater than the operating power of the fresh air fan (12), so that the garbage unloading system is in a negative pressure state.

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