CN214781413U - Superheated steam sludge drying system - Google Patents
Superheated steam sludge drying system Download PDFInfo
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- CN214781413U CN214781413U CN202120181791.8U CN202120181791U CN214781413U CN 214781413 U CN214781413 U CN 214781413U CN 202120181791 U CN202120181791 U CN 202120181791U CN 214781413 U CN214781413 U CN 214781413U
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Abstract
The utility model relates to a superheated steam sludge drying system, which comprises a drying module, a vacuum filtration unit and a heat pump steam unit, wherein the drying module is at least provided with a drying chamber, the drying chamber is provided with a sludge inlet and a filtered water outlet, and a water filtering device is arranged at the filtered water outlet; the vacuum pump filtration unit is connected to a filtered water outlet of the drying chamber to realize vacuum filtration of wet sludge in the drying chamber; the heat pump steam unit is connected with the drying module to realize the introduction of superheated steam into the drying chamber. The utility model provides an overheated steam mummification mud system, through vacuum filtration and the integrated filter-pressing mummification mud of overheated steam, it is fast, efficient to effective sterilization treatment can make and obtain fine processing and utilization of resources behind the sludge mummification. The sludge drying device has the advantages of simple structure system, low investment cost, long service life, low operation cost and energy consumption, meets the requirements of energy conservation and emission reduction in China, and is beneficial to sludge drying production.
Description
Technical Field
The utility model relates to a sludge treatment technical field especially relates to sludge drying handles technical field.
Background
With the increasing of environmental protection in countries in recent years, water environment treatment is remarkably achieved, and water treatment rate and standard reaching rate are continuously improved. However, various sludges generated in the water treatment process form a new environmental problem.
The sludge is solid sediment generated in the sewage treatment process, and also comprises sediment with relatively close physical properties generated in the industrial production process, and the sludge in the sludge treatment process is mainly biochemical sludge generated in the sewage treatment process. At present, a mechanical dehydration device is commonly arranged in a sewage treatment department, and the water content of biochemical sludge after dehydration is still as high as 80-85%.
Sludge drying is an important technology in the technical route of sludge treatment. The problem of sludge treatment is that the water content is reduced, the water content of the dewatered sludge is reduced from 80% to 30%, the total amount is reduced by 71%, sludge drying is the most direct method for sludge reduction, and the products after sludge drying also create conditions for carbonization and resource utilization. At present, the investment cost of the device for sludge drying in the market is high, the existing sludge drying device generally adopts the technology similar to chemical drying equipment, the technical arrangement for reducing the energy consumption is not developed, the operation cost and the energy consumption exceed the bearing capacity of enterprises, and the overhigh energy consumption does not meet the requirements of energy conservation and emission reduction in China; these characteristics greatly limit the application of sludge drying technology. Meanwhile, the existing sludge drying device is generally filtered by filter cloth, has short service life and is easy to block, and the sludge drying production is greatly influenced.
Disclosure of Invention
An object of the utility model is to provide a superheated steam mummification mud system to solve above-mentioned technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a superheated steam drying sludge system having:
the drying module is at least provided with a drying chamber, the drying chamber is provided with a sludge inlet and a filtered water outlet, and a water filtering device is arranged at the filtered water outlet;
the vacuum pump filtration unit is connected to a filtered water outlet of the drying chamber, so that the wet sludge in the drying chamber is subjected to vacuum filtration;
the heat pump steam unit is connected with the drying module to realize the introduction of superheated steam into the drying chamber.
The heat pump steam unit and the vacuum pump filtration unit form a parallel connection relation and are connected to a filtered water outlet of the drying chamber.
According to the scheme, the drying module is formed by axially stacking a plurality of metal plate frames, and the drying chamber is formed by enclosing adjacent metal plate frames; corresponding flow passages are arranged on the metal plate frame and communicated with the drying chamber to form a sludge inlet and a filtered water outlet of the drying chamber; the water filtering device is a metal filtering plate which is fixed on the metal plate frame in a detachable mode.
The above scheme is further that the metal plate frame and the metal filter plate are disc-shaped, and the metal filter plate is fixed on the metal plate frame through a metal press ring.
The vacuum filtration unit is provided with a water ring vacuum pump and at least two flash evaporation condensing tanks, the flash evaporation condensing tanks are arranged in series, so that vacuum filtration of wet sludge in the drying chamber is realized, and filtered water is condensed and collected in the flash evaporation condensing tanks.
According to the scheme, the steam output end of the heat pump steam unit is provided with a bypass pipeline, and steam is led out from the bypass pipeline to carry out heating reaction on wet sludge before entering the drying chamber.
The utility model provides an overheated steam mummification mud system, through vacuum filtration and the integrated filter-pressing mummification mud of overheated steam, it is fast, efficient to effective sterilization treatment can make and obtain fine processing and utilization of resources behind the sludge mummification. The sludge drying device has the advantages of simple structure system, low investment cost, long service life, low operation cost and energy consumption, meets the requirements of energy conservation and emission reduction in China, and is beneficial to sludge drying production.
Description of the drawings:
FIG. 1 is a schematic diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic side view of the drying module of FIG. 1;
fig. 3 is a schematic diagram of a sheet metal frame structure of the drying module implemented in fig. 1.
The specific implementation mode is as follows:
the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, 2 and 3, the structure of the preferred embodiment of the system of the present invention is schematically shown, and the present invention relates to an superheated steam sludge drying system, which comprises a drying module 1, a vacuum filtration unit 2 and a heat pump steam unit 3; the drying module 1 is at least provided with a drying chamber 11, the drying chamber 11 is provided with a sludge inlet 111 and a water filtering outlet 112, and a water filtering device 12 is arranged at the water filtering outlet. This vacuum filtration unit 2 is connected in the drainage export of mummification room 11, realizes carrying out vacuum filtration to the indoor wet mud of mummification for the mud drainage promotes the mummification speed. This heat pump steam unit 3 connects mummification module 1, realizes letting in superheated steam to the mummification indoor, and superheated steam lets in the mummification room for high pressure state, and high-pressure superheated steam acts on mud, reaches pyrolytic reaction and high temperature sterilization's efficiency, kills the bacterium that contains in the mud to follow-up reuse. In this embodiment, the heat pump steam unit 3 and the vacuum pump filtration unit 2 form a parallel connection relation and are connected to a water filtration outlet of the drying chamber 11, the water filtration outlet is provided with two branches which are respectively connected with the heat pump steam unit 3 and the vacuum pump filtration unit 2, and the on-off state is controlled through a corresponding control valve during application, so that the heat pump steam unit 3 and the vacuum pump filtration unit 2 work in coordination. In this embodiment, the drying module 1 has a plurality of parallel drying chambers 11, and realizes that a plurality of drying chambers 11 work simultaneously, promotes drying efficiency. The superheated steam and the filtered water flow out in the opposite directions to enter the drying chamber, and the superheated steam enters the drying chamber in a high-pressure state, so that the backwashing filter device is achieved, the disassembling and cleaning work is reduced, the blockage is prevented, the water filtering work is ensured, the heat pump steam unit 3 is energy-saving and environment-friendly, and the requirements of energy conservation and emission reduction in China are met.
Referring to fig. 1, 2 and 3, in this embodiment, the drying module 1 is formed by axially stacking a plurality of metal plate frames 13, and the stacked plurality of metal plate frames 13 can be fixed by means of oil cylinder extrusion and the like, so as to achieve tight combination, meet the requirements of sludge drying operation, and be conveniently opened to discharge dried sludge. The drying chamber 11 of this embodiment is enclosed between the adjacent sheet metal frames 13 and is formed, makes things convenient for the die sinking to unload mud, and also makes things convenient for processing preparation drying chamber. The metal plate frame 13 is provided with corresponding flow channels to communicate with the drying chamber 11 so as to form a sludge inlet 111 and a filtered water outlet 112 of the drying chamber 11, and the structure is simple and stable. The water filtering device 12 is a metal filter plate, and the metal filter plate is fixed on the metal plate frame 13 in a detachable mode. In this embodiment, metal sheet frame 13 and metal filter plate are discoid, preferably adopt aluminum alloy material to make, and are durable, corrosion-resistant, and the surface degree is good, and the metal filter plate passes through metal clamping ring 14 to be fixed on metal sheet frame 13, and in the figure, metal clamping ring 14 compresses tightly the metal filter plate and locks through the screw corresponding to a plurality of positions, convenient equipment and maintenance, and the preferred aperture of filtration pore of metal filter plate is 10 microns, satisfies the mummification drainage requirement, guarantees that the sludge mummification is handled, and the quality of water of filtering meets the requirements.
Referring to fig. 1, 2 and 3, in the embodiment, the vacuum pump filtration unit 2 has a water ring vacuum pump 21 and at least two flash evaporation condensing tanks 22, the flash evaporation condensing tanks 22 are arranged in series, so that vacuum filtration of wet sludge in a drying chamber is realized, filtered water condensation is collected in the flash evaporation condensing tanks 22, and the structure ensures continuous filtration and gas-water separation, and improves drying efficiency of the system. The steam output end of the heat pump steam unit 3 is provided with a bypass pipeline 31, steam is led out by the bypass pipeline 31 to carry out heating reaction on wet sludge before entering the drying chamber, and the wet sludge is conditioned by matching with a medicament to realize heating reaction and high-temperature sterilization of the sludge and then enters the drying chamber, so that the integration of drying and conditioning of the sludge is achieved, and the heat pump steam unit has excellent social benefit and economic benefit.
When the sludge drying device works, a proper amount of wet sludge is conveyed into the drying chamber, preferably, the wet sludge is conveyed into the drying chamber in a high-pressure conveying mode, the conveying pressure is 3.5Mpa, the wet sludge is pressed in the drying chamber in the conveying process to automatically filter water, and part of water is removed; carrying out primary filter pressing on wet sludge in the drying chamber in a vacuum filtration mode through a vacuum filtration unit 2, vacuumizing to form negative pressure, accelerating sludge filtration and increasing the drying speed; then, superheated steam is introduced into the drying chamber after the first filter pressing through a heat pump steam unit 3, and the superheated steam is in direct contact with sludge in the drying chamber; preferably, the superheated steam is introduced into the drying chamber in a high-pressure state, and acts on the sludge to achieve the effects of pyrolysis reaction and high-temperature sterilization, so that bacteria contained in the sludge are killed for subsequent reuse; the superheated steam reversely enters the drying chamber in a high-pressure state and is opposite to the flowing direction of filtered water, so that the water filtering device is washed, the back washing filtering device is achieved, the disassembling and replacing cleaning work is reduced, the blockage is prevented, and the water filtering work is ensured; finally, carrying out secondary filter pressing on the sludge in the drying chamber in a vacuum filtration mode, and matching with the heat of superheated steam to achieve rapid drying of the sludge, thereby greatly shortening the drying time; and opening the drying chamber, and discharging the dried sludge. The sludge is dried by vacuum filtration and superheated steam integrated filter pressing, the speed is high, the efficiency is high, and the sludge can be effectively sterilized, so that the sludge can be well treated and the resources can be utilized after being dried. The utility model discloses still can carry out the medicament before wet sludge gets into the mummification room and take care of, then get into the mummification room again after heating reaction and microwave inactivation, reach the sterilization thoroughly, realize the sludge drying and take care of the integration, have splendid social and economic benefits.
The utility model discloses a vacuum filtration and the integrated filter-pressing mummification mud of superheated steam, it is fast, efficient to effective sterilization treatment can make and obtain fine processing and utilization of resources behind the mud mummification. The sludge drying device has the advantages of simple structure system, low investment cost, long service life, low operation cost and energy consumption, meets the requirements of energy conservation and emission reduction in China, and is beneficial to sludge drying production.
Although the preferred embodiments of the present invention have been described in connection with the accompanying drawings, the present invention should not be limited to the exact construction and operation as described and illustrated, and many equivalent modifications and variations of the above-described embodiments may be made by logical analysis, reasoning or limited experimentation by those skilled in the art without departing from the spirit and scope of the present invention, which should fall within the scope of the claims.
Claims (6)
1. The superheated steam drying sludge system is characterized by comprising:
the drying module (1), the drying module (1) is at least provided with a drying chamber (11), the drying chamber (11) is provided with a sludge inlet and a water filtering outlet, and a water filtering device (12) is arranged at the water filtering outlet;
the vacuum pump filtration unit (2) is connected to a filtered water outlet of the drying chamber (11) to realize vacuum filtration of wet sludge in the drying chamber;
the heat pump steam unit (3), this heat pump steam unit (3) connect mummification module (1), realize letting in superheated steam to the mummification indoor.
2. The superheated steam drying sludge system as claimed in claim 1, wherein the heat pump steam set (3) and the vacuum filtration set (2) are connected in parallel relationship with a filtered water outlet of the drying chamber (11).
3. The superheated steam sludge drying system according to claim 1, wherein the drying module (1) is formed by axially stacking a plurality of metal plate frames (13), and the drying chamber (11) is formed by enclosing adjacent metal plate frames (13); corresponding flow channels are arranged on the metal plate frame (13) and communicated with the drying chamber (11) to form a sludge inlet and a filtered water outlet of the drying chamber (11); the water filtering device (12) is a metal filter plate, and the metal filter plate is fixed on the metal plate frame (13) in a detachable mode.
4. The superheated steam dried sludge system as claimed in claim 3, wherein the metal plate frame (13) and the metal filter plate are disc-shaped, and the metal filter plate is fixed on the metal plate frame (13) by a metal press ring (14).
5. The superheated steam drying sludge system as claimed in claim 1 or 2, wherein the vacuum pump filtration unit (2) is provided with a water ring vacuum pump (21) and at least two flash evaporation condensing tanks (22), the flash evaporation condensing tanks (22) are arranged in series, so as to realize vacuum filtration of wet sludge in the drying chamber, and filtered water is condensed and collected in the flash evaporation condensing tanks (22).
6. The superheated steam drying sludge system as claimed in claim 1 or 2, wherein the steam output end of the heat pump steam unit (3) is provided with a bypass pipe (31), and the bypass pipe (31) leads out steam to perform heating reaction on wet sludge before entering the drying chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120181791.8U CN214781413U (en) | 2021-01-22 | 2021-01-22 | Superheated steam sludge drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120181791.8U CN214781413U (en) | 2021-01-22 | 2021-01-22 | Superheated steam sludge drying system |
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| CN214781413U true CN214781413U (en) | 2021-11-19 |
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| CN202120181791.8U Active CN214781413U (en) | 2021-01-22 | 2021-01-22 | Superheated steam sludge drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455795A (en) * | 2022-03-06 | 2022-05-10 | 广州绿邦环境技术有限公司 | Filter press filter plate with sludge drying function |
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2021
- 2021-01-22 CN CN202120181791.8U patent/CN214781413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455795A (en) * | 2022-03-06 | 2022-05-10 | 广州绿邦环境技术有限公司 | Filter press filter plate with sludge drying function |
| CN114455795B (en) * | 2022-03-06 | 2023-12-12 | 广州绿邦环境技术有限公司 | Filter press filter plate with sludge drying function |
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