CN117185618A - Sludge drying device for village and town level sewage treatment station - Google Patents

Sludge drying device for village and town level sewage treatment station Download PDF

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Publication number
CN117185618A
CN117185618A CN202311324349.6A CN202311324349A CN117185618A CN 117185618 A CN117185618 A CN 117185618A CN 202311324349 A CN202311324349 A CN 202311324349A CN 117185618 A CN117185618 A CN 117185618A
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CN
China
Prior art keywords
sludge
drying
pool
pipe
sewage treatment
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Pending
Application number
CN202311324349.6A
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Chinese (zh)
Inventor
李美艳
杨家武
李海
肖国伟
邬斌
彭建雄
陈小奇
陈红瑞
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Zhongche Environmental Technology Co ltd
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Zhongche Environmental Technology Co ltd
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Priority to CN202311324349.6A priority Critical patent/CN117185618A/en
Publication of CN117185618A publication Critical patent/CN117185618A/en
Pending legal-status Critical Current

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  • Treatment Of Sludge (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The application provides a sludge drying device for a village and town sewage treatment station, and relates to the technical field of sludge drying. Comprising the following steps: the device comprises a drying pool, a sunlight shed, mosquito eradication lamps and a deodorizing device, wherein the drying pool is divided into four-grid pools, a mud inlet pipe, a filler layer and a water collecting pipe are arranged from top to bottom, the mud inlet pipe and the water collecting pipe are perforated pipes, and the filler layer sequentially comprises a sand layer, a fine gravel layer and a coarse gravel layer from top to bottom. The device utilizes methods such as gravity separation, wind blowing, sun drying and the like to remove water in the sludge economically, achieves the purpose of sludge drying, has the advantages of good drying effect, low investment cost, simple operation and maintenance, low operation cost and the like, and is particularly suitable for village and town sewage treatment sites.

Description

Sludge drying device for village and town level sewage treatment station
Technical Field
The application relates to the technical field of sludge drying, in particular to a sludge drying device for a village and town sewage treatment station.
Background
With the more comprehensive collection and treatment of sewage treatment in cities and counties, the beginning of village and town sewage treatment is paid attention to and paid attention to. The daily treatment scale of the village and town sewage is generally 500-1000m 3 The daily mud yield is about 10-20m 3 Such a yield of sludge is not suitable for direct transfer by a sludge transporter, and requires on-site reduction and treatment. The traditional sludge heat drying process equipment, sludge incineration process equipment and sludge anaerobic digestion process equipment are not suitable for village and town sewage treatment plants with low sludge amount and poor economic level due to high investment and high operation cost. Based on the above, there is a need for sludge treatment process equipment with low investment cost, simple operation and good treatment effect in a village sewage treatment plant.
Disclosure of Invention
In view of the above, the embodiment of the application provides a sludge drying device for a village and town sewage treatment station, so as to achieve the purposes of low investment cost, simple operation and maintenance and good sludge drying treatment effect.
The embodiment of the application provides the following technical scheme: a sludge drying apparatus for a town sewage treatment site, comprising:
the drying pool comprises a pool body, wherein the pool body is formed by surrounding a pool wall and a pool bottom, a partition wall is arranged in the pool body, the pool body is divided into four drying areas by the partition wall, the top of each drying area is provided with a perforated mud distribution pipe for conveying mud to the drying area, and the bottom of each drying area is provided with a filler layer for filtering;
the mud inlet pipe penetrates through the pool wall and is connected with the inlet end of the perforated mud distribution pipe.
According to one embodiment of the application, the solar greenhouse is arranged above the drying pool and used for shielding the upper part of the pool opening of the drying pool, and the solar greenhouse is in non-contact with the pool wall, so that a semi-closed structure is formed between the drying pool and the solar greenhouse.
According to one embodiment of the present application, the filler layer includes a sand layer, a fine gravel layer, and a coarse gravel layer sequentially from top to bottom.
According to one embodiment of the application, the sand grain size of the sand layer is 0.5-2.0mm, and the thickness of the sand layer is 150mm; the gravel granularity of the fine gravel layer is 5-10mm, and the thickness of the fine gravel layer is 350mm; the gravel granularity of the coarse gravel layer is 15-20mm, and the thickness of the coarse gravel layer is 500mm.
According to one embodiment of the application, the solar greenhouse further comprises an industrial ultraviolet mosquito-killing lamp, wherein the industrial ultraviolet mosquito-killing lamp is fixed below the solar greenhouse.
According to one embodiment of the application, the solar drying pool further comprises a deodorizing pipe, wherein the deodorizing pipe is fixed above the drying pool, a plurality of deodorizing liquid spray heads for spraying deodorizing agents are arranged on the deodorizing pipe at intervals, and the deodorizing pipe is positioned below the solar greenhouse.
According to one embodiment of the application, the water collecting tank further comprises a water collecting pit, the water collecting pit is arranged in the middle of the tank body, a perforated water collecting pipe for collecting treated water is arranged at the bottom of the packing layer, the water outlet end of the perforated water collecting pipe is communicated with the water collecting pit, and a composite cover plate is arranged on the top opening of the water collecting pit.
According to one embodiment of the application, the perforated water collecting pipe and the perforated mud distributing pipe are alternately provided with holes on two sides of the pipeline; wherein, the orifice of the perforated water collecting pipe is upward at 45 degrees, and the orifice of the perforated mud distributing pipe is downward at 45 degrees.
According to one embodiment of the application, the mud inlet pipe and the perforated mud distribution pipes are connected through a multi-way joint, and each perforated mud distribution pipe is provided with a butterfly valve.
According to one embodiment of the application, the sunlight shed is transparent heat-collecting waterproof tarpaulin.
Compared with the prior art, the beneficial effects that above-mentioned at least one technical scheme that this description embodiment adopted can reach include at least:
1. compared with the conventional sludge drying method, the device has the advantages of low investment cost, simple operation and maintenance, low operation cost and the like.
2. The whole process of the device has no large-scale equipment and the process starting time is quick.
3. The whole process of the device does not need to add medicaments, saves the flow, saves the cost and is beneficial to the subsequent treatment of the sludge.
4. The sludge drying tank is in a semi-closed state, has small odor, and is provided with a deodorizing liquid spray head at the same time, so that the sludge drying tank can be used as required.
5. The effluent pollutant concentration of the device is low, and the effluent pollutant can be directly discharged back to a sewage station without separate sewage treatment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic plan view of an upper part of a sludge drying apparatus according to an embodiment of the present application;
FIG. 2 is a cross-sectional view taken along plane 1-1 of FIG. 1;
FIG. 3 is a cross-sectional view taken along the plane 3-3 in FIG. 1;
FIG. 4 is a schematic plan view of the lower part of the sludge drying apparatus according to the embodiment of the present application;
FIG. 5 is a cross-sectional view taken along the plane 2-2 in FIG. 4;
FIG. 6 is a schematic illustration of the openings of a perforated water collection pipe and a perforated mud distribution pipe in an embodiment of the application;
the device comprises a 1-mud inlet pipe, a 2-perforated mud distribution pipe, a 3-filler layer, a 4-sunlight shed, a 5-industrial ultraviolet mosquito-killing lamp, a 6-deodorizing liquid spray head, a 7-perforated water collecting pipe, an 8-water collecting pit, a 9-composite cover plate, a 10-butterfly valve and an 11-water outlet pipe.
Detailed Description
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present application will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present application with reference to specific examples. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1 to 5, an embodiment of the present application provides a sludge drying apparatus for a town sewage treatment site, including: the drying pool comprises a pool body, wherein the pool body is formed by surrounding a pool wall and a pool bottom, a partition wall is arranged in the pool body, the pool body is divided into four drying areas by the partition wall, the top of each drying area is provided with a perforated mud distribution pipe 2 for conveying mud to the drying area, and the bottom of each drying area is provided with a filler layer 3 for filtering; the mud inlet pipe 1 penetrates through the pool wall and is connected with the inlet end of the perforated mud distribution pipe 2.
The embodiment of the application provides a sludge drying device for a village and town sewage treatment station, which has the advantages of low investment cost, simple operation and maintenance, good sludge drying treatment effect and the like. Specifically, the surplus sludge of the sewage treatment station enters the drying pool through the sludge inlet pipe 1, and is conveyed to each drying zone through the plurality of perforated sludge distribution pipes 2, and the filler layer 3 is arranged in the drying zone, so that the water in the sludge is separated and removed through the filtration of the filler layer 3.
The application aims to economically remove water in sludge by utilizing methods such as gravity separation, wind blowing, sun drying and the like, so as to achieve the purpose of sludge drying. In one embodiment, the solar greenhouse further comprises a solar greenhouse 4, wherein the solar greenhouse 4 is arranged above the drying pool and is used for shielding the top of a pool opening of the drying pool, and the solar greenhouse 4 is in non-contact with the pool wall, so that a semi-closed structure is formed between the drying pool and the solar greenhouse 4.
The sunlight shed 4 is preferably transparent heat-collecting waterproof tarpaulin. In the embodiment, the sunlight shed 4 capable of transmitting light and isolating rain is arranged at the upper part of the drying pool, ultraviolet rays in sunlight are utilized for sterilization, and water in sludge is evaporated at high temperature of the sunlight. In addition, the side surface of the upper part of the drying pool is not provided with a wall and a fence, and is in a semi-closed state, so that the water content of the sludge can be removed by utilizing the flow of air. In the concrete implementation, the support frame can be built by adopting a high-strength support rod, such as a steel pipe and other products, and the support frame for supporting the sunlight shed 4 is built, so that the semi-closed state of the whole structure can be ensured, the stability of the sunlight shed 4 can be ensured, and the effects of shielding wind and rain and heat collection are achieved.
In this embodiment, the filler layer 3 includes a sand layer, a fine gravel layer, and a coarse gravel layer from top to bottom. The granularity of sand stone of the sand layer is 0.5-2.0mm, and the thickness of the sand layer is 150mm; the gravel granularity of the fine gravel layer is 5-10mm, and the thickness of the fine gravel layer is 350mm; the gravel granularity of the coarse gravel layer is 15-20mm, and the thickness of the coarse gravel layer is 500mm. The water in the sludge passes through the filler layer 3 under the action of gravity and is collected by a perforated water collecting pipe 7 arranged at the bottom of the filler layer 3.
In this embodiment, still include sump pit 8, sump pit 8 sets up the middle part of cell body, the water outlet end intercommunication of perforation collector pipe 7 sump pit 8, just set up compound apron 9 on the open-top of sump pit 8. The sewage collected by the perforated water collecting pipe 7 enters the water collecting pit 8 completely, and the sewage in the water collecting pit 8 is discharged through the water outlet pipe 11.
In this embodiment, the solar greenhouse further comprises an industrial ultraviolet mosquito-killing lamp 5, and the industrial ultraviolet mosquito-killing lamp 5 is fixed below the solar greenhouse 4. In the specific implementation, a plurality of industrial ultraviolet mosquito eradication lamps 5 can be arranged below the sunlight shed 4 at intervals, so that mosquitoes and flies are reduced. For reducing under special circumstances, the odor substance emission not up to standard, this embodiment still includes the deodorization pipe, the deodorization pipe is fixed in the top of desiccation pond, the last interval of deodorization pipe sets up a plurality of deodorant liquid shower nozzles 6 that are used for spraying deodorant medicament, just the deodorization pipe is located the below of sunshine canopy 4. By adding the deodorizing liquid spray head 6, the odor material dissipation can be effectively reduced.
In this embodiment, as shown in fig. 6, the perforated water collecting pipe 7 and the perforated mud distributing pipe 2 are alternately perforated at two sides of the pipeline; wherein the orifice of the perforated water collecting pipe 7 is 45 degrees upwards, and the orifice of the perforated mud distributing pipe 2 is 45 degrees downwards.
In this embodiment, the tank body is divided into four drying areas, so that the tank body has a grid-shaped structure. Above-mentioned sump 8 sets up between the adjacent desiccation district at cell body middle part, and advance between the perforation between mud pipe 1 and each desiccation district and join in marriage mud pipe 2 through three way connection and four way connection and connect, and every perforation is joined in marriage and is all set up butterfly valve 10 on the mud pipe 2, makes things convenient for the mud pit to overhaul.
The embodiment of the application aims to remove water in sludge economically by utilizing methods such as gravity separation, wind blowing, sun drying and the like, so as to achieve the aim of drying the sludge. Excess sludge enters a sludge drying tank through a sludge inlet pipe 1, the sludge drying tank is divided into four grids, and the sludge inlet pipe 1 is connected with a perforated sludge distribution pipe 2 through a four-way joint and a three-way joint. The sludge is uniformly distributed to the four ponds through the perforated sludge distribution pipe 2. The lower part of the perforated pipe is provided with a filler layer 3, which is respectively a sand layer with the thickness of 0.5-2.0mm, a fine gravel layer with the thickness of 350mm and 5-10mm and a coarse gravel layer with the thickness of 500mm and 15-20mm from top to bottom. The upper part of the sludge pool is provided with a sunlight shed 4, the side surface is free of walls and fences, the sludge pool is in a semi-closed state, part of water in the sludge can be removed through blowing and sun drying, and the rest of water passes through the filler layer 3 through the action of gravity and is collected by a perforated water collecting pipe 7. The collected water flows to the sump 8. The water in the water pit 8 is discharged to the front end (generally, a regulating tank) of the sewage treatment station for treatment. The upper part of the sludge drying pool is also provided with a deodorizing liquid spray head 6, and deodorizing agents are sprayed at proper time. The perforated mud distributing pipe 2 and the water collecting pipe are provided with holes on two sides of the pipeline, and the hole opening is 45 degrees downwards or upwards. In addition, in order to reduce mosquitoes and flies, an industrial ultraviolet mosquito eradication lamp 5 is arranged at the upper part of the sludge drying pool.
Compared with the conventional sludge drying equipment, the embodiment has the advantages of low investment cost, simple operation and maintenance, low operation cost and the like. The whole process has no large-scale equipment and the process starting time is quick. And the whole process does not need to add medicaments, thereby saving the flow and the cost and being beneficial to the subsequent treatment of the sludge. In addition, the sludge drying pool of the device is in a semi-closed state, has small odor, and is provided with the deodorizing liquid spray head 6, so that the device can be used as required. The effluent has low pollutant concentration, and can be directly discharged back to a sewage station without separate sewage treatment.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims (10)

1. A sludge drying apparatus for a town sewage treatment site, comprising:
the drying pool comprises a pool body, wherein the pool body is formed by surrounding a pool wall and a pool bottom, a partition wall is arranged in the pool body, the pool body is divided into four drying areas by the partition wall, the top of each drying area is provided with a perforated mud distribution pipe for conveying mud to the drying area, and the bottom of each drying area is provided with a filler layer for filtering;
the mud inlet pipe penetrates through the pool wall and is connected with the inlet end of the perforated mud distribution pipe.
2. The sludge drying device for a village and town sewage treatment site according to claim 1, further comprising a sunlight shed, wherein the sunlight shed is arranged above the drying pool and is used for shielding the upper part of a pool opening of the drying pool, and the sunlight shed is in non-contact with the pool wall, so that a semi-closed structure is formed between the drying pool and the sunlight shed.
3. The sludge drying apparatus for a town sewage treatment site of claim 1, wherein said filler layer comprises a sand layer, a fine gravel layer, and a coarse gravel layer in this order from top to bottom.
4. A sludge drying apparatus for a rural sewage treatment site according to claim 3, wherein the sand layer has a sand particle size of 0.5 to 2.0mm and a thickness of 150mm; the gravel granularity of the fine gravel layer is 5-10mm, and the thickness of the fine gravel layer is 350mm; the gravel granularity of the coarse gravel layer is 15-20mm, and the thickness of the coarse gravel layer is 500mm.
5. The sludge drying apparatus for a rural sewage treatment plant according to claim 2, further comprising an industrial ultraviolet mosquito killer lamp, wherein the industrial ultraviolet mosquito killer lamp is fixed below the sunlight shed.
6. The sludge drying device for a village and town sewage treatment site according to claim 2, further comprising a deodorizing pipe, wherein the deodorizing pipe is fixed above the drying pool, a plurality of deodorizing liquid spray heads for spraying deodorizing agents are arranged on the deodorizing pipe at intervals, and the deodorizing pipe is positioned below the sunlight shed.
7. The sludge drying device for a village and town sewage treatment site according to claim 1, further comprising a water collecting pit, wherein the water collecting pit is arranged in the middle of the tank body, a perforated water collecting pipe for collecting treated water is arranged at the bottom of the packing layer, the water outlet end of the perforated water collecting pipe is communicated with the water collecting pit, and a composite cover plate is arranged on the top opening of the water collecting pit.
8. The sludge drying apparatus for a rural sewage treatment site according to claim 7, wherein the perforated water collecting pipe and the perforated sludge distributing pipe are alternately perforated at both sides of the pipeline; wherein, the orifice of the perforated water collecting pipe is upward at 45 degrees, and the orifice of the perforated mud distributing pipe is downward at 45 degrees.
9. The sludge drying device for a village and town sewage treatment site according to claim 1, wherein the sludge inlet pipe and the perforated sludge distribution pipes are connected through a multi-way joint, and each perforated sludge distribution pipe is provided with a butterfly valve.
10. The sludge drying apparatus for a rural sewage treatment site according to claim 2, wherein the solar greenhouse is a transparent heat-collecting waterproof tarpaulin.
CN202311324349.6A 2023-10-13 2023-10-13 Sludge drying device for village and town level sewage treatment station Pending CN117185618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311324349.6A CN117185618A (en) 2023-10-13 2023-10-13 Sludge drying device for village and town level sewage treatment station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311324349.6A CN117185618A (en) 2023-10-13 2023-10-13 Sludge drying device for village and town level sewage treatment station

Publications (1)

Publication Number Publication Date
CN117185618A true CN117185618A (en) 2023-12-08

Family

ID=88992575

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311324349.6A Pending CN117185618A (en) 2023-10-13 2023-10-13 Sludge drying device for village and town level sewage treatment station

Country Status (1)

Country Link
CN (1) CN117185618A (en)

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