CN114477702A - Sludge drying system with automatic dust removal device - Google Patents
Sludge drying system with automatic dust removal device Download PDFInfo
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- CN114477702A CN114477702A CN202111681817.6A CN202111681817A CN114477702A CN 114477702 A CN114477702 A CN 114477702A CN 202111681817 A CN202111681817 A CN 202111681817A CN 114477702 A CN114477702 A CN 114477702A
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- conveying belt
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- heating loop
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- 239000000428 dust Substances 0.000 title claims abstract description 55
- 238000001035 drying Methods 0.000 title claims abstract description 42
- 239000010802 sludge Substances 0.000 title claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 57
- 239000007921 spray Substances 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (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
The invention provides a sludge drying system with an automatic dust removal device, which comprises a main body, wherein a drying room and a heat pump system are arranged in the main body, the drying room is internally provided with the automatic dust removal device, a settling chamber, an air homogenizing plate, an upper conveying belt and a lower conveying belt from top to bottom in sequence, the automatic dust removal device comprises a flower plate and a filter cylinder, the flower plate is provided with a plurality of vent holes, the open end of the filter cylinder is connected with the vent holes and is arranged below the flower plate, the heat pump system comprises a main heating loop and an auxiliary heating loop, the air inlet end of the main heating loop is arranged below the lower conveying belt, the air outlet end of the main heating loop is the vent hole on the flower plate, the air inlet end of the auxiliary heating loop is arranged on the side wall of the drying room between the upper conveying belt and the lower conveying belt, and the air outlet end of the auxiliary heating loop is arranged on the side wall of the drying room corresponding to the position of the filter cylinder. The automatic dust removal device can effectively prevent dust from entering the heat pump system, prevent the evaporator from being corroded, prevent the surface of the evaporator from being covered, reduce the heat exchange efficiency, improve the running stability of equipment and prolong the service life of the equipment.
Description
Technical Field
The invention relates to the technical field of sludge drying, in particular to a sludge drying system with an automatic dust removal device.
Background
A 'biomass utilization and incineration' disposal mode is encouraged to be adopted in large and medium-sized cities with shortage of land resources. The low-temperature sludge drying technology can reserve the heat value of the sludge to the maximum extent in the sludge drying process and create conditions for subsequent diversified applications, so that the low-temperature sludge drying technology is rapidly popularized in China in recent years.
In the field of low-temperature sludge drying, one of the main problems encountered at present is how to rapidly and effectively remove dust. The plate filter and the bag filter are arranged on the common drying equipment, so that the plate filter and the bag filter are convenient to disassemble and assemble, but need to be cleaned manually at regular intervals, in addition, the gap between the filter and the mounting seat is large, powder leakage is easy, once dust is accumulated on the heat exchanger, the heat exchange efficiency is influenced, and fins are easy to corrode. Meanwhile, if the specification of the drying equipment is large, the workload of cleaning the filter regularly is huge, the production efficiency is influenced, and higher labor cost is needed, so that the automatic dust removal type drying equipment is popularized in the past year, and the following problems are mainly caused by the existing products in the market:
firstly, a needled felt type filter bag is used, the filter bag is low in cost, but the filter area is small, and the filter bag is generally long in order to meet the requirement of the circulating air volume of a system and the requirement of the filter area, so that the filter bags of a plurality of factories are transversely arranged, the occupation of more height space is avoided, and meanwhile, the filter bags are large in quantity, so that a large amount of return air space is occupied, and the difficulty in subsequent maintenance is caused;
secondly, when the horizontal filter bag cleans the dust each time, the dust of the upper filter bag falls on the lower filter bag, so that the loss of effective area is caused, the dust cleaning is not thorough, meanwhile, the horizontal filter bag easily causes the problems that the distance between the filter bags is too small, the filtering air speed and the distribution uniformity are influenced, and the dust leakage is easily caused at the installation position of the filter bag;
and thirdly, an air-homogenizing structure is not arranged, and meanwhile, a settling space is not arranged below the filter bag, so that the air flow speed and uniformity cannot be adjusted, and the dust removal efficiency is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a sludge drying system with an automatic dust removal device.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a take automatic dust collector's sludge drying system, includes the main part, be equipped with baking house and heat pump system in the main part, from last automatic dust collector, deposit room, even aerofoil, last defeated area of sending and lower conveyer belt of being equipped with in proper order in the baking house, automatic dust collector includes the card and strains a section of thick bamboo, equal even a plurality of air vents that are equipped with on the card, strain an open end with the air vent is connected to be located the card below, heat pump system includes main heating circuit and auxiliary heating circuit, main heating circuit air inlet end is located conveyer belt below down, main heating circuit air-out end is the venthole on the card, auxiliary heating circuit air inlet end is located on the baking house lateral wall between conveyer belt and the lower conveyer belt, auxiliary heating circuit air-out end is located and is strained on the baking house lateral wall that the position corresponds.
The upper conveying belt is used for conveying the sludge into the drying room, and the lower conveying belt is used for conveying the sludge out of the drying room; the main heating loop is used for sending dry hot air to the lower part of the lower conveying belt, the auxiliary heating loop is used for sending damp hot air to the position between the upper conveying belt and the lower conveying belt, and the moisture in the sludge is taken out by utilizing the difference of moisture unsaturation degrees in air at different temperatures under the condition that the pressure of the moisture is constant; the hot air and the sludge are subjected to heat exchange, a large amount of dust rises along with the wet hot air under the action of wind power after the sludge is dried, the wet hot air passes through the air homogenizing plate before reaching the automatic dust removal device, the wind speed is reduced, meanwhile, the wind quantity is uniformly distributed, the speed of the large-diameter particles of the wet hot air in the settling chamber is reduced, the large-diameter dust gradually falls under the action of gravity and falls back into the sludge, the subsequent dust removal pressure is reduced, and the dust removal efficiency is improved; the filter cylinders are vertically arranged, the problem of secondary dust coverage during working is solved, and meanwhile, the distance between the filter cylinders is uniform, so that the problem of reduction of dust removal efficiency caused by dust accumulation gravity sag and mutual interference is solved.
Further, automatic dust collector still including locating strain a nozzle in the section of thick bamboo, the nozzle is connected with the spray lance, the spray lance upper end passes the air vent and upwards extends to the main part outside, the spray lance upper end is equipped with pulse solenoid valve, pulse solenoid valve passes through high-pressure hose and is connected with the air supply.
The air source is used for providing compressed air, and the pulse solenoid valve blows the compressed air into the filter cylinder rapidly through the spray rod and the nozzle, so that the filter cylinder expands rapidly, and dust adsorbed on the surface is shaken off.
Further, the air source comprises an air compressor and an air bag, the air bag is obliquely arranged at the upper end of the main body, the input end of the air bag is connected with the output end of the air compressor, the air bag is connected with the pulse electromagnetic valve through a high-pressure hose, and a drain valve is arranged at the lowest point of the air bag.
The air compressor is used for providing compressed air, the air bag is used for decompressing and filtering the compressed air, the air bubbles can be made of seamless steel pipes, and the drain valve is installed at the low point of the air bag and used for discharging water in the air bag in an irregular mode so as to avoid polluting the filter cartridge.
Further, the outside of the filter cylinder is covered with a layer of polyester fiber. Can deal with water, oil and fine particles below 3 mu in the sludge, the filtering area of the filter cylinder is 10-15 times of that of the needle felt type filter bag with the same size, and the quantity and the occupied space of the filter cylinder are greatly saved.
Further, be equipped with in the main part and be used for dividing the main heating circuit and the auxiliary heating circuit partition board of diaphragmatic division, be equipped with second grade condenser and evaporimeter in the main heating circuit, main heating circuit air inlet department is equipped with main fan, be equipped with the one-level condenser in the auxiliary heating circuit, auxiliary heating circuit air inlet department is equipped with circulating fan.
An evaporator is arranged in the main heating loop and used for cooling and dehumidifying the damp and hot air from the drying room, and the primary condenser and the secondary condenser are used for heating the air in the loop.
Further, auxiliary heating circuit air-out end department is equipped with and is used for adjusting the regulating plate of air-out end opening size, the regulating plate with baking house lateral wall sliding connection.
Further, a differential pressure gauge for measuring the pressure difference between the filter cartridge and the secondary condenser is arranged in the main body.
Further, the outer side of the main body is coated with a heat insulation layer. The drying room and the heat pump system are wrapped by the heat insulation layer, the heat insulation layer is isolated from the external environment, heat loss is reduced, and the heat insulation layer can be made of polyurethane foaming materials.
The beneficial effects of the invention are: according to the sludge drying system with the automatic dust removal device, dust can be effectively prevented from entering a heat pump system by adopting the automatic dust removal device, an evaporator is prevented from being corroded, the surface of the evaporator is prevented from being covered, the heat exchange efficiency is reduced, the operation stability of equipment is improved, and the service life of the equipment is prolonged; the filter cartridge is a film-coated filter cartridge, can deal with water, oil and fine particles below 3 mu in sludge, and has the filtering area 10-15 times that of the filter bag with the same size, so that the number and the occupied space of the filter cartridge are greatly saved; the filter cylinders are vertically installed, the problem that the filter cylinders are covered by dust for the second time in the working process does not exist, the distance between the filter cylinders is uniform, the filter cylinders and the pattern plate are sealed uniformly and tightly in the working process, and the problem that the dust removal efficiency is reduced due to the fact that dust is accumulated, gravity falls and mutual interference is avoided.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a card.
In the figure: 1. the device comprises a drying room, 2, a settling chamber, 3, an air homogenizing plate, 4, an upper conveying belt, 5, a lower conveying belt, 6, a pattern plate, 601, an air vent, 7, a filter cylinder, 8, a main heating loop, 9, an auxiliary heating loop, 10, a spray rod, 11, a pulse electromagnetic valve, 12, a high-pressure hose, 13, an air bag, 14, a partition plate, 15, a secondary condenser, 16, an evaporator, 17, a main fan, 18, a primary condenser, 19, a circulating fan, 20, an adjusting plate, 21 and a heat insulating layer.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram illustrating only the basic structure of the present invention in a schematic manner, and thus it shows only the structure related to the present invention.
As shown in fig. 1 and 2, the sludge drying system with the automatic dust removing device of the invention comprises a main body, a drying room 1 and a heat pump system are arranged in the main body, the automatic dust removing device, a settling chamber 2, an air evening plate 3, an upper conveyer belt 4 and a lower conveyer belt 5 are sequentially arranged in the drying room 1 from top to bottom, the automatic dust removing device comprises a flower plate 6 and a filter cartridge 7, a plurality of vent holes 601 are uniformly arranged on the flower plate 6, the open end of the filter cartridge 7 is connected with the vent holes 601 and arranged below the flower plate 6, the heat pump system comprises a main heating loop 8 and an auxiliary heating loop 9, the air inlet end of the main heating loop 8 is arranged below the lower conveyer belt 5, the air outlet end of the main heating loop 8 is the vent hole 601 on the flower plate 6, the air inlet end of the auxiliary heating loop 9 is arranged on the side wall of the drying room 1 between the upper conveyer belt 4 and the lower conveyer belt 5, and the air outlet end of the auxiliary heating loop 9 is arranged on the side wall of the drying room 1 corresponding to the position of the filter cartridge 7.
The automatic dust removal device further comprises a nozzle arranged in the filter cartridge 7, the nozzle is connected with the spray rod 10, the upper end of the spray rod 10 penetrates through the vent hole 601 and extends upwards to the outer side of the main body, the upper end of the spray rod 10 is provided with a pulse electromagnetic valve 11, and the pulse electromagnetic valve 11 is connected with an air source through a high-pressure hose 12.
The air supply includes air compressor and gas package 13, the slope of gas package 13 is located the main part upper end, 13 input ends of gas package are connected with the air compressor output, 13 gas package pass through high-pressure hose 12 with pulse solenoid valve 11 is connected, 13 the minimum of gas package is equipped with the trap.
The outside of the filter cartridge 7 is wrapped with a layer of polyester fiber.
Be equipped with in the main part and be used for dividing diaphragmatic baffle 14 open with main heating circuit 8 and auxiliary heating circuit 9, be equipped with second grade condenser 15 and evaporimeter 16 in the main heating circuit 8, 8 air inlet departments of main heating circuit are equipped with main blower 17, be equipped with one-level condenser 18 in the auxiliary heating circuit 9, 9 air inlet departments of auxiliary heating circuit are equipped with circulating fan 19.
9 air-out end departments of auxiliary heating circuit are equipped with and are used for adjusting air-out end opening size's regulating plate 20, regulating plate 20 with 1 lateral wall sliding connection in baking house.
A differential pressure gauge for measuring the pressure difference between the filter cartridge 7 and the secondary condenser 15 is arranged in the main body.
The outer side of the main body is provided with a heat-insulating layer 21 made of polyurethane foaming material.
The working process is as follows:
the dry hot air of the main heating loop 8 is blown into the drying room 1 by a main fan 17, passes through the lower conveyer belt 5 and then is converged with the wet hot air of the auxiliary heating loop 9, and then passes through the wet sludge layer on the upper conveyer belt 4 together, at the moment, the air path passes through the air uniforming plate 3 for the first time, the air volume is uniformly distributed after passing through the air uniforming plate 3, the air speed is slowed down, then the air reaches the settling chamber 2, at the moment, a part of dust particles with larger particle size and mass fall down onto the upper conveyer belt 4 due to the action of gravity, the rest of particles reach the dust removal filter cylinder 7 upwards, the air filtered by the filter cylinder 7 continuously returns to the main heating loop 8, is cooled and dehumidified by the evaporator 16 and is heated by the secondary condenser 15 to complete a circulation, and a small part of air for auxiliary heating directly returns to the primary condenser 18 in the auxiliary heating loop 9 without passing through the filter cylinder 7 for heating, this part of the air volume is adjusted by the adjusting plate 20.
Compressed air used by the automatic dust removal device is decompressed and filtered before entering the air bag 13, the air bag 13 is obliquely installed, and a drain valve is installed at the low point of the air bag 13 and used for emptying water existing inside irregularly so as to avoid polluting the filter cartridge 7. Compressed air is rapidly blown into the filter cartridge 7 through the pulse solenoid valve 11 to rapidly expand the filter cartridge 7, thereby shaking off dust adsorbed on the surface. The pulse electromagnetic valve 11 is started in two control modes, one mode is controlled by a differential pressure gauge arranged in the system, when the front and back differential pressure of the faceplate 6 rises to a set value, the electromagnetic valve starts to sequentially blow, the other mode is to set a fixed time interval, after one blowing is finished, an adjustable time interval is set to reach a preset time, one blowing is automatically started, and the pulse width and the pulse interval are controlled by a system touch screen.
Directions and references (e.g., up, down, left, right, etc.) may be used in the present disclosure only to aid in the description of features in the figures. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a take automatic dust collector's sludge drying system which characterized in that: comprises a main body, a drying room (1) and a heat pump system are arranged in the main body, the drying room (1) is internally provided with an automatic dust removal device, a settling chamber (2), an air distribution plate (3), an upper conveying belt (4) and a lower conveying belt (5) in sequence from top to bottom, the automatic dust removal device comprises a card (6) and a filter cylinder (7), the card (6) is uniformly provided with a plurality of air vents (601), the open end of the filter cylinder (7) is connected with the air vents (601) and arranged below the card (6), the heat pump system comprises a main heating loop (8) and an auxiliary heating loop (9), the air inlet end of the main heating loop (8) is arranged below the lower conveying belt (5), the air outlet end of the main heating loop (8) is the air vents (601) on the card (6), the air inlet end of the auxiliary heating loop (9) is arranged on the side wall of the drying room (1) between the upper conveying belt (4) and the lower conveying belt (5), the air outlet end of the auxiliary heating loop (9) is arranged on the side wall of the drying room (1) corresponding to the position of the filter cartridge (7).
2. The sludge drying system with the automatic dust removing device as set forth in claim 1, wherein: the automatic dust removal device further comprises a nozzle arranged in the filter cylinder (7), the nozzle is connected with the spray rod (10), the upper end of the spray rod (10) penetrates through the vent hole (601) to extend upwards to the outer side of the main body, a pulse electromagnetic valve (11) is arranged at the upper end of the spray rod (10), and the pulse electromagnetic valve (11) is connected with an air source through a high-pressure hose (12).
3. The sludge drying system with the automatic dust removing device as set forth in claim 2, characterized in that: the air supply includes air compressor and gas package (13), gas package (13) slope is located the main part upper end, gas package (13) input is connected with the air compressor output, gas package (13) pass through high-pressure hose (12) with pulse solenoid valve (11) are connected, gas package (13) minimum is equipped with the trap.
4. The sludge drying system with the automatic dust removing device as set forth in claim 1, wherein: the outer side of the filter cylinder (7) is coated with a layer of polyester fiber.
5. The sludge drying system with the automatic dust removing device as set forth in claim 1, wherein: be equipped with in the main part and be used for dividing diaphragmatic baffle (14) with main heating circuit (8) and auxiliary heating circuit (9), be equipped with secondary condenser (15) and evaporimeter (16) in main heating circuit (8), main heating circuit (8) air inlet department is equipped with main fan (17), be equipped with one-level condenser (18) in auxiliary heating circuit (9), auxiliary heating circuit (9) air inlet department is equipped with circulating fan (19).
6. The sludge drying system with the automatic dust removing device as set forth in claim 5, wherein: auxiliary heating circuit (9) air-out end department is equipped with regulating plate (20) that are used for adjusting air-out end opening size, regulating plate (20) with baking house (1) lateral wall sliding connection.
7. The sludge drying system with the automatic dust removing device as set forth in claim 5, wherein: the main body is internally provided with a differential pressure gauge for measuring the pressure difference between the filter cartridge (7) and the secondary condenser (15).
8. The sludge drying system with the automatic dust removing device as set forth in claim 1, wherein: the outer side of the main body is coated with an insulating layer (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681817.6A CN114477702A (en) | 2021-12-30 | 2021-12-30 | Sludge drying system with automatic dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681817.6A CN114477702A (en) | 2021-12-30 | 2021-12-30 | Sludge drying system with automatic dust removal device |
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| Publication Number | Publication Date |
|---|---|
| CN114477702A true CN114477702A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111681817.6A Pending CN114477702A (en) | 2021-12-30 | 2021-12-30 | Sludge drying system with automatic dust removal device |
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| Country | Link |
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| CN (1) | CN114477702A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118063075A (en) * | 2024-04-18 | 2024-05-24 | 天津松山环保科技有限公司 | Sludge drying device |
| CN118063075B (en) * | 2024-04-18 | 2024-07-02 | 天津松山环保科技有限公司 | Sludge drying device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127984A (en) * | 2019-05-06 | 2019-08-16 | 四川天润德环境工程有限公司 | A kind of sludge at low temperature heat pump drying equipment |
| CN112629162A (en) * | 2020-12-31 | 2021-04-09 | 南京五洲制冷集团有限公司 | Overlapping parallel secondary air supply sludge heat pump belt type drying unit |
| CN212954818U (en) * | 2020-04-26 | 2021-04-13 | 上海净泥新能源科技有限公司 | Low-temperature belt type drying equipment based on heat pump dehumidification technology |
| CN113213728A (en) * | 2021-06-18 | 2021-08-06 | 深圳德尔科机电环保科技有限公司 | Sludge drying machine with built-in high-efficiency pulse dust removal device |
| CN215085561U (en) * | 2021-02-06 | 2021-12-10 | 厦门宇春环保科技有限公司 | Filter cartridge dust removal device |
-
2021
- 2021-12-30 CN CN202111681817.6A patent/CN114477702A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127984A (en) * | 2019-05-06 | 2019-08-16 | 四川天润德环境工程有限公司 | A kind of sludge at low temperature heat pump drying equipment |
| CN212954818U (en) * | 2020-04-26 | 2021-04-13 | 上海净泥新能源科技有限公司 | Low-temperature belt type drying equipment based on heat pump dehumidification technology |
| CN112629162A (en) * | 2020-12-31 | 2021-04-09 | 南京五洲制冷集团有限公司 | Overlapping parallel secondary air supply sludge heat pump belt type drying unit |
| CN215085561U (en) * | 2021-02-06 | 2021-12-10 | 厦门宇春环保科技有限公司 | Filter cartridge dust removal device |
| CN113213728A (en) * | 2021-06-18 | 2021-08-06 | 深圳德尔科机电环保科技有限公司 | Sludge drying machine with built-in high-efficiency pulse dust removal device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118063075A (en) * | 2024-04-18 | 2024-05-24 | 天津松山环保科技有限公司 | Sludge drying device |
| CN118063075B (en) * | 2024-04-18 | 2024-07-02 | 天津松山环保科技有限公司 | Sludge drying device |
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Application publication date: 20220513 |