A dredging system for a waste-to-energy plant

Abstract

The utility model discloses a kind of dredging systems for garbage combustion power plant, by being additionally provided with collection pool in the lower end of garbage storage pit to be suitable for collecting percolate, by the cooperation action of suction component, thick water pump, first switch valve, second switch valve, third switch valve to clean the percolate in collection pool, so as not to manual cleaning or suction vehicle is transported, the entire cleaning process is relatively airtight, and further eliminate the peculiar smell overflow of percolate to further improve the environment of periphery, it is simple in structure, not only can effectively reduce the dredging cost of percolate collection pool, simultaneously can also control the peculiar smell generated in dredging process well.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration technology, and in particular to a sludge removal system for waste-to-energy plants. Background Technology

[0002] Below the municipal solid waste storage pit is a dedicated collection tank for leachate. Once the tank level reaches a certain height, a leachate pump is used to pump the leachate to a leachate treatment plant. However, as the leachate volume gradually increases, more and more sludge and impurities settle in the collection tank, causing the leachate pump to malfunction. A common problem is blockage at the pump inlet, often requiring manual entry into the collection tank for cleaning. As a confined space, the leachate collection tank presents significant safety hazards during cleaning. Therefore, regular cleaning of the leachate collection tank is a routine task.

[0003] In existing technologies, most methods involve first deploying a vacuum truck to pump the sludge from the pool into the vacuum truck, which then transports it to a municipal solid waste storage pit. The accumulated waste is used to filter out the sludge and impurities before finally mixing it with the municipal solid waste and incinerating it in the incinerator. Although this sludge removal method is simple, it is costly. In addition, the odor is difficult to control as the vacuum truck travels within the factory area, leading to strong complaints from nearby residents. Summary of the Invention

[0004] This utility model aims to at least partially solve one of the problems existing in the prior art. To this end, this utility model proposes a sludge removal system for waste incineration power plants. Its structure is simple and can not only effectively reduce the sludge removal cost of leachate collection ponds, but also control the odor generated during the sludge removal process.

[0005] The above objective is achieved through the following technical solution:

[0006] A sludge removal system for a waste-to-energy plant, comprising:

[0007] A waste storage pit, with a collection pool connected to its lower end for collecting leachate, the collection pool being connected to a sewage outlet;

[0008] A first pipeline is connected to the output end of the waste storage pit, and a first switching valve is installed on the first pipeline.

[0009] The second pipeline is connected to the sewage outlet. A sludge suction assembly and a second switch valve are sequentially installed on the second pipeline along the sewage discharge direction. The sludge suction assembly is used to output the leachate in the collection tank to the outside.

[0010] The third pipeline is connected to the feed inlet of the incinerator, and a third switching valve is installed on the third pipeline.

[0011] The fourth pipeline is connected to the outlet of the concentrate tank, and a concentrate pump is installed on the fourth pipeline.

[0012] A four-way pipe, wherein the first end of the four-way pipe is connected to the first pipe, the second end is connected to the second pipe, the third end is connected to the third pipe, and the fourth end is connected to the fourth pipe.

[0013] In some embodiments, the suction assembly includes a filter screen and a suction pump, wherein the filter screen and the suction pump are respectively disposed on the second pipeline along the discharge direction.

[0014] In some embodiments, the filter screen is located at the drain outlet.

[0015] In some embodiments, a temperature sensor is also included, which is disposed within the incinerator.

[0016] In some embodiments, if the collection pool needs to be dredged, the first switch valve, the second switch valve, and the third switch valve are opened, and the sludge suction assembly is activated to mix the leachate with the domestic waste and then transport it to the incinerator for incineration.

[0017] In some embodiments, if the temperature inside the incinerator is high, the second switch valve and the third switch valve are opened, and the suction assembly and the concentrate pump are started simultaneously so that the leachate and concentrate are mixed and then sprayed back into the incinerator.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] 1. This utility model is used for a sludge removal system in a waste-to-energy plant. It has a simple structure and can not only effectively reduce the sludge removal cost of the leachate collection pond, but also control the odor generated during the sludge removal process. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the dredging system in an embodiment of this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of the claimed invention.

[0024] Example:

[0025] like Figure 1 As shown, this embodiment provides a sludge removal system for a waste-to-energy plant, comprising:

[0026] The garbage storage pit 1 has a collection tank 11 connected to its lower end to collect leachate, and the collection tank 11 is connected to a sewage outlet.

[0027] First pipeline 2, first pipeline 2 is connected to the output end of garbage storage pit 1, and first switch valve 21 is installed on first pipeline 2;

[0028] The second pipeline 3 is connected to the sewage outlet. A suction assembly 4 and a second switch valve 5 are sequentially installed on the second pipeline 3 along the sewage discharge direction. The suction assembly 4 is used to output the leachate in the collection tank 11 to the outside.

[0029] The third pipeline 6 is connected to the feed inlet of the incinerator 8, and a third switch valve 61 is installed on the third pipeline 6.

[0030] The fourth pipeline 7 is connected to the outlet of the concentrate tank 9, and a concentrate pump 71 is installed on the fourth pipeline 7.

[0031] The four-way pipe has its first end connected to the first pipe 2, its second end connected to the second pipe 3, its third end connected to the third pipe 6, and its fourth end connected to the fourth pipe 7.

[0032] In this embodiment, the water in the waste storage pit 1 is suitable for storing domestic waste, and the output end of the waste storage pit 1 is connected to the first end of the four-way pipe through the first switch valve 21. The concentrated liquid tank 9 is suitable for storing concentrated liquid, and the outlet of the concentrated liquid tank 9 is connected to the fourth end of the four-way pipe through the concentrated liquid pump 71. The feed inlet of the incinerator 8 is connected to the third end of the four-way pipe through the third switch valve 61. Since a collection tank 11 is added at the lower end of the waste storage pit 1, and the upper end of the collection tank 11 is connected to the lower end of the waste storage pit 1, the collection tank 11 collects the leachate generated by the domestic waste in the waste storage pit 1. A sewage outlet is provided at the lower end of the collection tank 11, and the sewage outlet is connected to the second end of the four-way pipe through the second pipe 3. A suction assembly 4 and a second switch valve 5 are sequentially arranged along the discharge direction. That is, the suction assembly 4 and the second switch valve 5 are arranged sequentially along the discharge port towards the four-way pipe. The suction assembly 4 is used to output the leachate in the collection tank 11. In this way, the leachate in the collection tank 11 can be cleaned by the coordinated action of the suction assembly 4, the concentrated water pump, the first switch valve 21, the second switch valve 5, and the third switch valve 61. Therefore, manual cleaning or transportation by vacuum truck is not required. The entire cleaning process is relatively airtight, thereby preventing the leakage of leachate odor and further improving the surrounding environment. Its structure is simple and can not only effectively reduce the dredging cost of the leachate collection tank 11, but also control the odor generated during the dredging process.

[0033] Furthermore, the suction assembly 4 includes a filter screen 41 and a suction pump 42, wherein the filter screen 41 and the suction pump 42 are respectively installed on the second pipeline 3 along the sewage discharge direction.

[0034] Preferably, the filter screen 41 is located at the drain outlet.

[0035] In this embodiment, since the sewage outlet of the collection tank 11 is connected to the second end of the four-way pipe through the second pipe 3, the filter screen 41 and the sewage pump 42 are respectively arranged on the second pipe 3 along the sewage discharge direction. Thus, the filter screen 41, the sewage pump 42 and the second switch valve 5 are arranged sequentially on the second pipe 3 from the sewage outlet to the four-way pipe. More preferably, the filter screen 41 is located at the sewage outlet, so that the filter screen 41 filters the leachate output from the collection tank 11.

[0036] Specifically, it also includes a temperature sensor, which is installed inside the incinerator 8. The temperature sensor is reasonably designed to facilitate the detection of the temperature inside the incinerator 8 and obtain the temperature conditions inside the incinerator 8.

[0037] Preferably, when the collection pool 11 needs to be dredged, the first switch valve 21, the second switch valve 5, and the third switch valve 61 are opened, and the sludge suction assembly 4 is activated at the same time so that the leachate is mixed with the domestic waste and then transported to the incinerator 8 for incineration.

[0038] Specifically, if the temperature inside the incinerator 8 is high, the second switch valve 5 and the third switch valve 61 are opened, and the suction assembly 4 and the concentrated liquid pump 71 are started at the same time so that the leachate and concentrated liquid are mixed and sprayed back into the incinerator 8.

[0039] In this embodiment, when the collection tank 11 needs to be dredged, the first switch valve 21, the second switch valve 5, and the third switch valve 61 are opened first, so that the first pipeline 2, the second pipeline 3, and the third pipeline 6 can be connected to each other. At this time, the concentrated liquid pump 71 is kept closed. Then, the suction pump 42 of the suction assembly 4 is started to output the leachate in the collection tank 11 through the second pipeline 3. At the same time, the domestic waste in the garbage storage pit 1 is output through the first pipeline 2. Then, the leachate and domestic waste are mixed and transported to the incinerator 8 for incineration. In this way, the dredging of the collection tank 11 can be completed.

[0040] Of course, the temperature inside the incinerator 8 is detected by a temperature sensor to obtain the temperature status inside the incinerator 8. A preset temperature value can be preset on the controller. If the temperature inside the incinerator 8 is higher than the preset temperature value, it is considered that the temperature inside the incinerator 8 is too high. At this time, the second switch valve 5 and the third switch valve 61 are opened to connect the second pipeline 3 and the third pipeline 6. At this time, the first switch valve 21 is kept closed. Then, the suction pump 42 of the suction assembly 4 is started to output the leachate in the collection tank 11 through the second pipeline 3. At the same time, the concentrate pump 71 is started to output the concentrate in the concentrate tank 9 through the fourth pipeline 7. Then, the leachate and concentrate are mixed and sprayed back into the incinerator 8 to cool down the temperature of the incinerator 8 and also to clean the sludge in the collection tank 11.

[0041] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A sludge removal system for waste-to-energy plants, characterized in that, include: A garbage storage pit (1) is connected to a collection tank (11) at its lower end to collect leachate, and the collection tank (11) is connected to a sewage outlet. The first pipeline (2) is connected to the output end of the garbage storage pit (1), and a first switch valve (21) is provided on the first pipeline (2); The second pipeline (3) is connected to the sewage outlet. A suction assembly (4) and a second switch valve (5) are sequentially installed on the second pipeline (3) along the sewage discharge direction. The suction assembly (4) is used to output the leachate in the collection tank (11) to the outside. The third pipeline (6) is connected to the feed inlet of the incinerator (8), and a third switch valve (61) is provided on the third pipeline (6); The fourth pipeline (7) is connected to the outlet of the concentrate tank (9), and a concentrate pump (71) is installed on the fourth pipeline (7); The four-way pipe has its first end connected to the first pipe (2), its second end connected to the second pipe (3), its third end connected to the third pipe (6), and its fourth end connected to the fourth pipe (7).

2. The sludge removal system for a waste-to-energy plant according to claim 1, characterized in that, The suction assembly (4) includes a filter screen (41) and a suction pump (42), wherein the filter screen (41) and the suction pump (42) are respectively arranged on the second pipeline (3) along the sewage discharge direction.

3. A sludge removal system for a waste-to-energy plant according to claim 2, characterized in that, The filter (41) is located at the drain outlet.

4. A sludge removal system for a waste-to-energy plant according to claim 1, characterized in that, It also includes a temperature sensor, which is located inside the incinerator (8).

5. A sludge removal system for a waste-to-energy plant according to claim 1, characterized in that, If the collection pool (11) needs to be dredged, the first switch valve (21), the second switch valve (5), and the third switch valve (61) are opened, and the sludge suction assembly (4) is started at the same time so that the leachate is mixed with the domestic waste and then transported to the incinerator (8) for incineration.

6. A sludge removal system for a waste-to-energy plant according to claim 1, characterized in that, If the temperature inside the incinerator (8) is high, the second switch valve (5) and the third switch valve (61) are opened, and the suction assembly (4) and the concentrate pump (71) are started at the same time so that the leachate and concentrate are mixed and sprayed back into the incinerator (8).

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