CN219530875U - Percolate treatment device for household garbage incineration power generation - Google Patents

Abstract

The utility model belongs to the field of garbage treatment, and provides a percolate treatment device for household garbage incineration power generation, which comprises a garbage pit, an incinerator, a percolate gallery, a spray gun and a filter well, wherein a wall ladder and a plurality of ceramic membrane filters connected in series are arranged on the inner wall of the filter well, a booster pump is arranged between the ceramic membrane filters, a material suction pipe is arranged at a feed inlet of each ceramic membrane filter and communicated with the percolate gallery, a sewage draining outlet of each ceramic membrane filter is communicated with the filter well, a permeable material outlet of each ceramic membrane filter is provided with a permeable material pump outlet pipe, the permeable material pump outlet pipe is connected with the spray gun, a first material lifting pump and a combustion-supporting liquid injection pipe are arranged on the permeable material pump outlet pipe, a combustion-supporting liquid tank is arranged on the supply side of each combustion-supporting liquid injection pipe and a valve is arranged on the permeable material pump outlet pipe. The device has reasonable design, simple structure and good treatment effect, is favorable for improving the working environment, and is suitable for large-scale popularization.

Description

Percolate treatment device for household garbage incineration power generation

Technical Field

The utility model belongs to the field of garbage treatment, and particularly relates to a percolate treatment device for household garbage incineration power generation.

Background

After the garbage in the garbage pit is fermented, percolate is generated, and in order to reduce the water content of the garbage entering the furnace, the percolate must be timely discharged from the bottom of the garbage pit. The percolate back spraying is a mode for treating the percolate, namely, after the garbage percolate is collected and filtered, the garbage percolate is conveyed in a boosting way by a hose pump, is sprayed into a hearth by a spray gun with an atomizing head, is pneumatically atomized by the spray gun head and is mixed with high-temperature flue gas for combustion, so that the effect of removing pollutants is achieved.

The prior patent CN202022730334.8 discloses a domestic garbage leachate concentrated retraction spraying system which comprises a collecting tank, a filtering tank and an incinerator, wherein a lifting pump is communicated between the collecting tank and the filtering tank, a booster pump is communicated with the filtering tank, and a spray gun head positioned in the incinerator is communicated with the booster pump; the bottom of incinerator is connected with the ash bucket, the ash bucket is connected with the connection box, connection box horizontal sliding connection has the frame of rectangle, the lateral wall of frame top and bottom evenly spaced is equipped with a plurality of teeth, the connection box still is equipped with the motor, the motor rotates and is connected with the incomplete gear that meshes in turn with the tooth at frame top and bottom respectively, the frame coupling has the piece of beating towards the ash bucket. Because the leachate is mostly coarse filtration in the filtering ponds, on the one hand, the spraying effect of the spray gun and the service life of the spray gun are directly influenced, the oxidation treatment effect of the leachate spray is influenced, on the other hand, the adhesion quantity of furnace dust on the ash bucket is increased, the working frequency of the knocking block is increased, and the noise of a workshop is increased.

Disclosure of Invention

Aiming at the technical problems of the garbage leachate concentrated retraction spraying system, the utility model provides a leachate treatment device which has reasonable design, simple structure and good treatment effect and is beneficial to improving working environment and generating power by incineration of household garbage.

In order to achieve the above purpose, the technical scheme includes that the leachate treatment device for household garbage incineration power generation comprises a garbage pit and an incinerator, wherein a leachate discharge outlet is formed in the side wall of the garbage pit, a leachate gallery is formed in the discharge side of the leachate discharge outlet, a spray gun for introducing leachate is arranged on the side face of the incinerator, a plurality of filter wells are further arranged on the side face of the incinerator, a wall ladder and a plurality of ceramic membrane filters connected in series are arranged on the inner wall of each filter well, a booster pump is arranged between the ceramic membrane filters, a pumping pipe is arranged at a feed inlet of each ceramic membrane filter, the pumping pipe is communicated with the leachate gallery, a sewage draining outlet of each ceramic membrane filter is communicated with each filter well, a permeate pump outlet pipe is arranged at a permeate port of each ceramic membrane filter, each permeate pump outlet pipe is connected with the spray gun, a first material lifting pump and a combustion supporting liquid injection pipe are arranged on each permeate pump outlet pipe, a combustion supporting liquid tank is arranged on the feed side of each combustion supporting liquid injection pipe, and valves are arranged on each permeate pump.

Preferably, a sewage pump pipe is arranged in the filter well, a second material lifting pump is arranged on the sewage pump pipe, and the tail end of the sewage pump pipe is connected with the percolate treatment terminal.

Preferably, the inner wall of the filter well is provided with a support frame, the support frame comprises a back plate connected with the inner wall of the filter well, the cross section of the back plate is arc-shaped, a pair of clamping plates which are distributed up and down are arranged on the inner side of the back plate, an O-shaped bayonet is arranged on the clamping plates, a strip-shaped shock pad is arranged on the plate body of the back plate, and the shock pad is in contact fit with the side face of the ceramic membrane filter.

Preferably, the ceramic membrane filter has a longitudinal length of greater than 120cm and a diameter of greater than 30cm.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the leachate treatment device for the household garbage incineration power generation, the filtering path of the filtering structure is prolonged by the filtering well, the actual occupied unit is reduced, and particularly, the filtering quality of the device on leachate can be improved due to the installation of the ceramic membrane filter in the filtering well, and the combustion-supporting liquid can be effectively mixed with the leachate entering the injection path, so that the oxidation treatment effect of the leachate in a hearth is effectively improved, the volume of the leachate attached to furnace dust and the volume of the leachate on the dust hopper are reduced, the frequency of mechanically knocking the dust hopper is reduced, and larger noise is not frequently generated; the sewage in the filter well can be pumped to a percolate treatment terminal for treatment. The device has reasonable design, simple structure and good treatment effect, is favorable for improving the working environment, and is suitable for large-scale popularization.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a percolate treatment device for generating electricity by incineration of household garbage, which is provided by the embodiment;

fig. 2 is a schematic structural view of a support frame according to an embodiment;

in the figures, 1, a garbage pit; 2. an incinerator; 3. a percolate gallery; 4. a spray gun; 5. a filter well; 6. a wall ladder; 7. a ceramic membrane filter; 71. a sewage outlet; 8. a booster pump; 9. a material pumping pipe; 10. a permeate pump outlet pipe; 11. a first material lifting pump; 12. a combustion-supporting liquid injection pipe; 13. a combustion-supporting liquid tank; 14. a valve; 15. a sewage pump pipe; 16. a second material lifting pump; 17. a support frame; 171. a back plate; 172. a clamping plate; 173. and a shock pad.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are merely used herein to denote a correspondence with the upper, lower, left, and right directions of the drawing figures, and are not limiting on the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

The embodiment is as shown in fig. 1 and 2, and the leachate treatment device for power generation by incineration of household garbage provided by the utility model comprises a garbage pit 1 and an incinerator 2, wherein a leachate discharge outlet is arranged on the side wall of the garbage pit 1, a leachate gallery 3 is arranged on the discharge side of the leachate discharge outlet, and a spray gun 4 for introducing leachate is arranged on the side surface of the incinerator 2. The garbage pit 1, the incinerator 2, the percolate gallery 3 and the spray gun 4 are in the prior art, and the embodiment is not described herein. On the basis, the utility model designs a plurality of filter wells 5, the filter wells 5 are connected with a percolate gallery 3 through pipelines, pump structures are arranged on corresponding pipelines, a wall ladder 6 and a plurality of ceramic membrane filters 7 connected in series are arranged on the inner wall of the filter wells 5, a booster pump 8 is arranged between the ceramic membrane filters 7, a feed inlet of each ceramic membrane filter 7 is provided with a suction pipe 9, the suction pipe 9 is communicated with the percolate gallery 3, a drain outlet of each ceramic membrane filter 7 is communicated with the filter wells 5, a permeable material opening of each ceramic membrane filter 7 is provided with a permeable material pump outlet pipe 10, the permeable material pump outlet pipe 10 is connected with a spray gun 4, a first material lifting pump 11 and a combustion-supporting liquid injection pipe 12 are arranged on the permeable material pump outlet pipe 10, a combustion-supporting liquid tank 13 is arranged on the supply side of each combustion-supporting liquid injection pipe 12, and valves 14 are arranged on the permeable material pump outlet pipe 10.

In the device, the filtering path of the percolate in the output direction is prolonged by the filtering well 5, the actual occupied unit is reduced, the filtering quality of the device on the percolate can be improved by the ceramic membrane filter 7 which is internally and serially designed, and the sewage content in the permeate on the output side of the ceramic membrane filter 7 is reduced; the permeate filtered by the ceramic membrane filter 7 is conveyed towards the incinerator 2 by the permeate pump outlet pipe 10, and the combustion-supporting liquid is added to the injection path of the permeate by the combustion-supporting liquid tank 13, so that the oxidation treatment effect of the permeate in the hearth can be improved, the volume of the permeate attached to the furnace ash and the volume of the permeate on the ash bucket are reduced, the frequency of mechanically knocking the ash bucket to remove ash is reduced, larger noise is not frequently generated, and the aim of improving the working environment can be achieved. The sewage of the ceramic membrane filter 7 is directly discharged into the filter well 5, the sewage in the filter well 5 can be intensively pumped to a percolate treatment terminal for treatment, and the wall ladder 6 in the filter well 5 is used for maintenance of equipment in the filter well 5 or slag-fishing treatment of the filter well 5.

In order to facilitate the treatment of sewage in the filter well 5, a sewage pump pipe 15 is arranged in the filter well 5, a second material lifting pump 16 is arranged on the sewage pump pipe 15, and the tail end of the sewage pump pipe 15 is connected with a percolate treatment terminal.

In order to facilitate the installation of the ceramic membrane filter 7, the inner wall of the filter well 5 is provided with a support frame 17, the support frame 17 comprises a back plate 171 connected with the inner wall of the filter well 5, the cross section of the back plate 171 is arc-shaped, and the arc-shaped surface of the back plate is contacted with the inner wall surface of the filter well 5; meanwhile, a pair of clamping plates 172 which are distributed up and down are arranged on the inner side of the back plate 171, and O-shaped bayonets are arranged on the clamping plates 172 and are fast clamped with the outlet of the ceramic membrane filter 7; in order to improve the stability of the ceramic membrane filter 7, the utility model is also provided with a strip-shaped shock pad 173 on the plate body of the back plate, and the shock pad 173 is in contact fit with the side surface of the ceramic membrane filter 7.

In order to improve the filtering efficiency of the device, besides increasing the number of the filter wells 5 and the ceramic membrane filters 7, the utility model further improves the filtering efficiency of the device by using ceramic membrane filters 7 with larger specifications, such as the ceramic membrane filters 7 with the longitudinal length of more than 120cm and the diameter of more than 30cm, in a mode of increasing the working volume of the ceramic membrane filters 7.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (4)

1. The utility model provides a domestic waste burns filtration liquid processing apparatus of electricity generation, includes refuse pit and burns burning furnace, the lateral wall of refuse pit is provided with the filtration liquid discharge port, the discharge side of filtration liquid discharge port is provided with the filtration liquid corridor, the side of burning furnace is provided with the spray gun that is used for letting in the filtration liquid, its characterized in that still includes a plurality of filter wells, the inner wall of filter well is provided with wall ladder and a plurality of ceramic membrane filter of establishing ties, be provided with the booster pump between the ceramic membrane filter, the feed inlet of ceramic membrane filter is provided with the material extraction pipe, material extraction pipe and filtration liquid corridor intercommunication, the drain and the filter well intercommunication of ceramic membrane filter, the material mouth that permeates of ceramic membrane filter is provided with the material pump exit tube that permeates, material pump exit tube is connected with the spray gun that permeates, be provided with first material pump and liquid injection pipe on the material pump exit tube, the supply side of liquid injection pipe is provided with the combustion-supporting fluid reservoir, all be provided with combustion-supporting valve on material pump exit tube.

2. The leachate treatment device for household garbage incineration power generation according to claim 1, wherein a sewage pump pipe is arranged in the filter well, a second material lifting pump is arranged on the sewage pump pipe, and the tail end of the sewage pump pipe is connected with a leachate treatment terminal.

3. The leachate treatment device for household garbage incineration power generation according to claim 2, wherein a supporting frame is arranged on the inner wall of the filter well, the supporting frame comprises a back plate connected with the inner wall of the filter well, the cross section of the back plate is arc-shaped, a pair of clamping plates distributed up and down are arranged on the inner side of the back plate, an O-shaped bayonet is arranged on the clamping plates, a strip-shaped shock pad is arranged on the body of the back plate, and the shock pad is in contact fit with the side face of the ceramic membrane filter.

4. A leachate treatment plant for the incineration of household waste for the generation of electricity according to claim 3, characterised in that the ceramic membrane filter has a longitudinal length greater than 120cm and a diameter greater than 30cm.