CN113371974A - Sludge drying and dehumidifying system - Google Patents
Sludge drying and dehumidifying system Download PDFInfo
- Publication number
- CN113371974A CN113371974A CN202110675844.6A CN202110675844A CN113371974A CN 113371974 A CN113371974 A CN 113371974A CN 202110675844 A CN202110675844 A CN 202110675844A CN 113371974 A CN113371974 A CN 113371974A
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- CN
- China
- Prior art keywords
- heat recoverer
- fresh air
- evaporator
- gas supply
- sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A sludge drying and dehumidifying system comprises a drying chamber, a sludge storage barrel arranged in the drying chamber, a gas supply box arranged on one side of the drying chamber, a blower, a fresh air precooler, a heat recoverer, an evaporator and a condenser, wherein the blower, the fresh air precooler, the heat recoverer, the evaporator and the condenser are arranged in the gas supply box; the heat recoverer is arranged between the fresh air precooler and the evaporator, and the condenser is arranged below the heat recoverer; the air feeder is arranged on one side of the evaporator, which is far away from the heat recoverer, the gas supply box is provided with a first outlet communicated with the drying chamber on the outer side of the air feeder, and the air feeder is at least partially positioned at the first outlet; the gas supply box is provided with a first inlet at one side of the fresh air precooler, which is far away from the heat recoverer. Therefore, the refrigeration and dehumidification efficiency is high, the heat is fully utilized, the heat emission is reduced, the energy consumption is reduced, and the economical efficiency is improved.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a sludge drying and dehumidifying system.
Background
The sludge dryer is mainly used for drying sludge, removing moisture and reducing the sludge, so that the sludge treatment cost is reduced, and the economic benefit is remarkable.
The box type dryer is used for drying the batch sludge. The existing box type drying machine has thick sludge stack, the sludge cannot be overturned in the drying process, the drying cannot be carried out completely, the water removal amount is small, the drying time is long, and the refrigeration and dehumidification efficiency is low; meanwhile, a heat pump system is adopted to provide a cold and heat source, the heat discharge amount in the closed box body is larger than the refrigerating capacity, the temperature in the box body is higher and higher along with the increase of the drying time, and in order to ensure the normal operation of the heat pump, part of heat needs to be discharged additionally. Therefore, heat is wasted, the energy consumption of the whole machine is high, and the economical efficiency is low.
Disclosure of Invention
In view of the above, the present invention provides a sludge drying and dehumidifying system with high refrigeration and dehumidifying efficiency, which makes full use of heat, reduces heat emission, reduces energy consumption, and improves economy, so as to solve the above problems.
A sludge drying and dehumidifying system comprises a drying chamber, a sludge storage barrel arranged in the drying chamber, a gas supply box arranged on one side of the drying chamber, a blower, a fresh air precooler, a heat recoverer, an evaporator and a condenser, wherein the blower, the fresh air precooler, the heat recoverer, the evaporator and the condenser are arranged in the gas supply box; the heat recoverer is arranged between the fresh air precooler and the evaporator, and the condenser is arranged below the heat recoverer; the air feeder is arranged on one side of the evaporator, which is far away from the heat recoverer, the gas supply box is provided with a first outlet communicated with the drying chamber on the outer side of the air feeder, and the air feeder is at least partially positioned at the first outlet; the gas supply box is provided with a first inlet at one side of the fresh air precooler away from the heat recoverer; a supporting base is arranged in the drying chamber, and the mud storage barrel is positioned on the supporting base; the bottom surface of the sludge storage barrel is provided with a plurality of air inlets, and the top of the sludge storage barrel is provided with an opening; the fresh air precooler is provided with a plurality of first channels in a penetrating manner along the horizontal direction, and a second channel is arranged between two adjacent first channels in a penetrating manner along the vertical direction; the heat recoverer is provided with a plurality of third channels in a penetrating mode along the horizontal direction, and a fourth channel is arranged between every two adjacent third channels in a penetrating mode along the vertical direction.
Furthermore, the gas supply box is provided with a second inlet below the fresh air precooler and a second outlet above the fresh air precooler.
Further, an air inlet valve is arranged at the second inlet.
Further, an exhaust fan is arranged at the second outlet.
Furthermore, a water receiving tray is arranged below the evaporator, a water pump is arranged in the water receiving tray, the water pump is connected with a spraying pipe through a water pipe, and the spraying pipe is arranged above the fresh air precooler.
Furthermore, the spraying pipe is connected with a plurality of spraying branch pipes, and the bottom surfaces of the spraying branch pipes are provided with a plurality of spraying openings.
Furthermore, an overflow pipe is arranged in the middle of the water pan.
Further, one side of the evaporator, which is far away from the heat recoverer, is communicated with the top of the heat recoverer through a pipeline.
Compared with the prior art, the sludge drying and dehumidifying system comprises a drying chamber, a sludge storage barrel arranged in the drying chamber, a gas supply box arranged on one side of the drying chamber, and a blower, a fresh air precooler, a heat recoverer, an evaporator and a condenser which are arranged in the gas supply box; the heat recoverer is arranged between the fresh air precooler and the evaporator, and the condenser is arranged below the heat recoverer; the air feeder is arranged on one side of the evaporator, which is far away from the heat recoverer, the gas supply box is provided with a first outlet communicated with the drying chamber on the outer side of the air feeder, and the air feeder is at least partially positioned at the first outlet; the gas supply box is provided with a first inlet at one side of the fresh air precooler away from the heat recoverer; a supporting base is arranged in the drying chamber, and the mud storage barrel is positioned on the supporting base; the bottom surface of the sludge storage barrel is provided with a plurality of air inlets, and the top of the sludge storage barrel is provided with an opening; the fresh air precooler is provided with a plurality of first channels in a penetrating manner along the horizontal direction, and a second channel is arranged between two adjacent first channels in a penetrating manner along the vertical direction; the heat recoverer is provided with a plurality of third channels in a penetrating mode along the horizontal direction, and a fourth channel is arranged between every two adjacent third channels in a penetrating mode along the vertical direction. Therefore, the refrigeration and dehumidification efficiency is high, the heat is fully utilized, the heat emission is reduced, the energy consumption is reduced, and the economical efficiency is improved.
Drawings
Embodiments of the invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic perspective view of a sludge drying and dehumidifying system provided by the present invention.
Fig. 2 is a schematic view of the working principle of the sludge drying and dehumidifying system provided by the invention.
Fig. 3 is a schematic perspective view of the fresh air precooler in fig. 1.
Fig. 4 is a perspective view of the recuperator of fig. 1.
Detailed Description
Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the sludge drying and dehumidifying system provided by the present invention includes a drying chamber 10, a sludge storage barrel 20 disposed in the drying chamber 10, a gas supply tank 30 disposed at one side of the drying chamber 10, and a blower 40, a fresh air pre-cooler 50, a heat recovery unit 60, an evaporator 70, and a condenser 80 disposed in the gas supply tank 30.
The heat recoverer 60 is arranged between the fresh air precooler 50 and the evaporator 70, and the condenser 80 is arranged below the heat recoverer 60.
The side of the evaporator 70 remote from the recuperator 60 communicates with the top of the recuperator 60 through a pipe.
The blower 40 is disposed at a side of the evaporator 70 away from the heat recovery unit 60, the gas supply box 30 is opened with a first outlet communicating with the drying chamber 10 at an outer side of the blower 40, and the blower 40 is at least partially located at the first outlet.
A supporting base is arranged in the drying chamber 10, and the mud storage barrel 20 is positioned on the supporting base. The bottom surface of the mud storage barrel 20 is provided with a plurality of air inlets, and the top part is provided with an opening. The mud storage barrel 20 stores therein wet mud.
The blower 40 delivers hot and dry air to the drying chamber 10, the hot and dry air enters the mud storage barrel 20 through the air inlet, moisture in wet mud in the mud storage barrel 20 is converted into water vapor, and the hot and wet air flows out of the opening of the mud storage barrel 20.
The gas supply tank 30 is provided with a first inlet on the side of the fresh air precooler 50 remote from the heat recoverer 60, through which the hot and humid air passes horizontally through the fresh air precooler 50. The fresh air precooler 50 is penetrated with fresh air sucked from the outside in the vertical direction, and the hot and humid air is primarily cooled by the fresh air.
The hot and humid air passes through the heat recoverer 60 in a horizontal direction. The heat recovery unit 60 is penetrated with cold air in the vertical direction, and the cold air carries out secondary cooling on the hot and humid air.
The hot and humid air passes through the evaporator 70, the evaporator 70 exchanges heat with the hot and humid air through the refrigerant, the refrigerant evaporates and absorbs heat in the hot and humid air, moisture in the hot and humid air is separated out into liquid water, cooling and dehumidification are realized, and the hot and humid air is converted into cold and dry air.
The dry and cold air passes through the heat recovery unit 60 in the vertical direction as cold air, so that the temperature of the dry and cold air is increased; the dry and cool air then passes through the condenser 80, the refrigerant in the condenser 80 condenses, a large amount of heat is released, the temperature of the dry and cool air is further increased, so that the dry and cool air becomes dry and hot air, the air blower 40 transfers the dry and hot air to the drying chamber 10 again, and so on.
The gas supply tank 30 has a second inlet below the fresh air precooler 50, a second outlet above the fresh air precooler 50, an air inlet valve 51 at the second inlet, and an exhaust fan 52 at the second outlet.
The air inlet valve 51 and the air exhaust fan 52 work cooperatively to pass fresh air from the outside through the fresh air precooler 50.
The evaporator 70 is connected to a condenser 80 via a throttle valve 74, a filter 75 and an economizer 76, the condenser 80 is also connected to the economizer 76 via a compressor 77, and the economizer 76 is also connected to the evaporator 70.
A water receiving tray 71 is arranged below the evaporator 70, a water pump 72 is arranged in the water receiving tray 71, the water pump 72 is connected with a spray pipe 73 through a water pipe, and the spray pipe 73 is arranged above the fresh air precooler 50.
An overflow pipe 78 is also arranged in the middle of the water pan 71.
Referring to fig. 3, the fresh air precooler 50 is provided with a plurality of first channels 501 passing through along the horizontal direction, and a second channel 502 passing through between two adjacent first channels 501 along the vertical direction. The spray pipe 73 is connected with a plurality of spray branch pipes 731, and the bottom surface of the spray branch pipes 731 is provided with a plurality of spray ports.
Water collected by the water receiving tray 71 is pumped to the spray pipe 73 and the spray branch pipe 731 through the water pump 72, flows through the second channel 502, and evaporates to absorb heat, so that the first channel 501 and the second channel 502 are cooled, and the cooling effect is improved.
A water pan is also provided below the fresh air precooler 50 for collecting water that is not evaporated.
Referring to fig. 4, the structure of the heat recoverer 60 is similar to that of the fresh air precooler 50, and a plurality of third channels 601 are arranged along the horizontal direction, and a fourth channel 602 is arranged along the vertical direction and between two adjacent third channels 601.
Compared with the prior art, the sludge drying and dehumidifying system comprises a drying chamber 10, a sludge storage barrel 20 arranged in the drying chamber 10, a gas supply box 30 arranged at one side of the drying chamber 10, and a blower 40, a fresh air precooler 50, a heat recoverer 60, an evaporator 70 and a condenser 80 which are arranged in the gas supply box 30; the heat recoverer 60 is arranged between the fresh air precooler 50 and the evaporator 70, and the condenser 80 is arranged below the heat recoverer 60; the blower 40 is arranged at one side of the evaporator 70 far away from the heat recoverer 60, the gas supply box 30 is provided with a first outlet communicated with the drying chamber 10 at the outer side of the blower 40, and the blower 40 is at least partially positioned at the first outlet; the gas supply tank 30 is provided with a first inlet on the side of the fresh air precooler 50 remote from the recuperator 60. Therefore, the refrigeration and dehumidification efficiency is high, the heat is fully utilized, the heat emission is reduced, the energy consumption is reduced, and the economical efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.
Claims (8)
1. The utility model provides a sludge drying dehumidification system which characterized in that: the sludge drying device comprises a drying chamber, a sludge storage barrel arranged in the drying chamber, a gas supply box arranged on one side of the drying chamber, a blower, a fresh air precooler, a heat recoverer, an evaporator and a condenser, wherein the blower, the fresh air precooler, the heat recoverer, the evaporator and the condenser are arranged in the gas supply box; the heat recoverer is arranged between the fresh air precooler and the evaporator, and the condenser is arranged below the heat recoverer; the air feeder is arranged on one side of the evaporator, which is far away from the heat recoverer, the gas supply box is provided with a first outlet communicated with the drying chamber on the outer side of the air feeder, and the air feeder is at least partially positioned at the first outlet; the gas supply box is provided with a first inlet at one side of the fresh air precooler away from the heat recoverer; a supporting base is arranged in the drying chamber, and the mud storage barrel is positioned on the supporting base; the bottom surface of the sludge storage barrel is provided with a plurality of air inlets, and the top of the sludge storage barrel is provided with an opening; the fresh air precooler is provided with a plurality of first channels in a penetrating manner along the horizontal direction, and a second channel is arranged between two adjacent first channels in a penetrating manner along the vertical direction; the heat recoverer is provided with a plurality of third channels in a penetrating mode along the horizontal direction, and a fourth channel is arranged between every two adjacent third channels in a penetrating mode along the vertical direction.
2. The sludge drying and dehumidifying system of claim 1, wherein: the gas supply box is provided with a second inlet below the fresh air precooler and a second outlet above the fresh air precooler.
3. The sludge drying and dehumidifying system of claim 2, wherein: and an air inlet valve is arranged at the second inlet.
4. The sludge drying and dehumidifying system of claim 2, wherein: and an exhaust fan is arranged at the second outlet.
5. The sludge drying and dehumidifying system of claim 1, wherein: a water receiving tray is arranged below the evaporator, a water pump is arranged in the water receiving tray, the water pump is connected with a spraying pipe through a water pipe, and the spraying pipe is arranged above the fresh air precooler.
6. The sludge drying and dehumidifying system of claim 5, wherein: the spraying pipe is connected with a plurality of spraying branch pipes, and the bottom surfaces of the spraying branch pipes are provided with a plurality of spraying openings.
7. The sludge drying and dehumidifying system of claim 5, wherein: an overflow pipe is further arranged in the middle of the water receiving tray.
8. The sludge drying and dehumidifying system of claim 1, wherein: one side of the evaporator, which is far away from the heat recoverer, is communicated with the top of the heat recoverer through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675844.6A CN113371974A (en) | 2021-06-18 | 2021-06-18 | Sludge drying and dehumidifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675844.6A CN113371974A (en) | 2021-06-18 | 2021-06-18 | Sludge drying and dehumidifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113371974A true CN113371974A (en) | 2021-09-10 |
Family
ID=77577628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110675844.6A Pending CN113371974A (en) | 2021-06-18 | 2021-06-18 | Sludge drying and dehumidifying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113371974A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002711A (en) * | 2015-08-11 | 2015-10-28 | 珠海格力电器股份有限公司 | Pre-cooling device for heat pump type clothes drier, clothes drier and control method |
| CN108585411A (en) * | 2018-04-18 | 2018-09-28 | 广东芬尼克兹环保科技有限公司 | A kind of sludge drying system based on heat pump techniques |
| CN208887245U (en) * | 2018-09-19 | 2019-05-21 | 宁夏源泉农林生态科技有限公司 | A kind of baking room and its heat recovery system |
| CN111875222A (en) * | 2020-07-17 | 2020-11-03 | 绵阳吉华环境工程技术有限公司 | Water source heat pump sludge drying device |
| KR102219328B1 (en) * | 2020-09-02 | 2021-02-24 | (주)한미엔텍 | Sludge hybrid drying system |
-
2021
- 2021-06-18 CN CN202110675844.6A patent/CN113371974A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002711A (en) * | 2015-08-11 | 2015-10-28 | 珠海格力电器股份有限公司 | Pre-cooling device for heat pump type clothes drier, clothes drier and control method |
| CN108585411A (en) * | 2018-04-18 | 2018-09-28 | 广东芬尼克兹环保科技有限公司 | A kind of sludge drying system based on heat pump techniques |
| CN208887245U (en) * | 2018-09-19 | 2019-05-21 | 宁夏源泉农林生态科技有限公司 | A kind of baking room and its heat recovery system |
| CN111875222A (en) * | 2020-07-17 | 2020-11-03 | 绵阳吉华环境工程技术有限公司 | Water source heat pump sludge drying device |
| KR102219328B1 (en) * | 2020-09-02 | 2021-02-24 | (주)한미엔텍 | Sludge hybrid drying system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210910 |
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| RJ01 | Rejection of invention patent application after publication |