CN209940798U - Closed circulation equipment for sludge drying - Google Patents

Closed circulation equipment for sludge drying Download PDF

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Publication number
CN209940798U
CN209940798U CN201920493306.3U CN201920493306U CN209940798U CN 209940798 U CN209940798 U CN 209940798U CN 201920493306 U CN201920493306 U CN 201920493306U CN 209940798 U CN209940798 U CN 209940798U
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mesh belt
hopper
guipure
communicated
fan
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CN201920493306.3U
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王志恒
闫广播
孙红波
侯芳
禚林林
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SHANDONG FUHANG NEW ENERGY ENVIRONMENTAL STOCK Co Ltd
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SHANDONG FUHANG NEW ENERGY ENVIRONMENTAL STOCK Co Ltd
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  • Treatment Of Sludge (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The utility model relates to a sludge treatment equipment field discloses an airtight circulating equipment for sludge drying very much. This a closed cycle equipment for sludge drying, including the hopper of the wet mud of splendid attire, its characterized in that: the hopper export corresponds inclosed guipure system, guipure system is including the guipure conveyer that corresponds the hopper export, guipure system bottom sets up just to guipure conveyer's no shell fan, guipure system top is provided with the last axial flow fan of intercommunication combined type heat transfer system, combined type heat transfer system is including two parallel ventilation pipes that the export of intercommunication axial flow fan, condenser A, middle fan are communicate in proper order to one of them ventilation pipe, the air outlet of middle fan is just to guipure conveyer, another ventilation pipe intercommunication dehumidification heat pump system, the air outlet intercommunication of dehumidification heat pump system does not have the shell fan. The utility model has the advantages of reasonable design, can realize automation, serialization, low maintenance, mass production, solve the problem that equipment and technology can not high-efficiently match in the original production.

Description

Closed circulation equipment for sludge drying
(I) technical field
The utility model relates to a sludge treatment equipment field, in particular to an airtight circulating equipment for sludge drying.
(II) background of the invention
With the development of market economy, industries such as papermaking sludge, municipal sludge, electroplating sludge and the like are rapidly promoted, and the continuous accumulation of sludge becomes an important environmental protection problem restricting the development of enterprises. At present, the sludge utilization mode is simple, the efficiency is low, the benefit is less, and the sludge is mainly used for incineration power generation and compost organization.
Disclosure of the invention
The utility model provides a make up the not enough of prior art, provide an airtight circulating equipment for sludge drying who changes, serialization, maintenance cost are low, the handling capacity is high.
The utility model discloses a realize through following technical scheme:
the utility model provides a closed circulating equipment for sludge drying, includes the hopper of splendid attire wet mud, its characterized in that: hopper export corresponds inclosed guipure system, guipure system is including the guipure conveyer that corresponds the hopper export, guipure system bottom sets up just to guipure conveyer's no shell fan, guipure system top is provided with the last axial fan of intercommunication combined type heat transfer system, combined type heat transfer system is including two parallel ventilation pipes that the export of axial fan is gone up in the intercommunication, one of them ventilation pipe communicates condenser A in proper order, middle fan, the air outlet of middle fan is just to guipure conveyer of guipure system, another ventilation pipe intercommunication dehumidification heat pump system, the air outlet intercommunication of dehumidification heat pump system does not have the supply-air duct of shell fan.
The utility model discloses in, mud in the hopper relies on gravity to fall into on the guipure of slow walking, the no shell fan upwards sends hot dry air fast from the guipure conveyer bottom, the in-process of hot dry air and mud contact is with the sludge drying, humid air then gets into combined type heat transfer system and recycles, partly humid air heats directly and sends back the guipure system after the condensation once more, another portion gets into dehumidification heat pump system, the mode through the cooling makes humid air temperature be less than the dew point, steam can condense and discharge system, air heating up after the dehydration becomes hot dry air and sends into guipure system recycle once more, go on in the entire system insulation can, so no tail gas produces.
The utility model discloses a more excellent technical scheme does:
the hopper is arranged in the mesh belt system, or the outlet of the hopper is arranged in the mesh belt system, so that the integral sealing of the mesh belt system is realized, and the circulation of air volume and heat energy is facilitated.
And a stirrer and a forming machine are arranged at the bottom of the hopper, and the stirring and slitting are carried out on the sludge transported downwards.
The mesh belt conveyor is a three-layer mesh belt conveying structure, a dry mud hopper is installed at the tail end of the mesh belt conveying structure at the lowest layer, and the dry mud hopper is communicated with the outside of a mesh belt system through a scraper conveyor at the bottom.
The three-layer mesh belt design has small floor area, is optimized in operation method, and dries sludge on the mesh belt by hot dry air through remotely controlling the transmission motor to evaporate moisture in wet sludge, and sends high-temperature and high-humidity gas into the composite heat exchange system under the action of the upper axial flow fan.
The conveying speeds of the middle mesh belt and the lowest mesh belt are consistent, and the conveying speeds of the middle mesh belt and the lowest mesh belt are lower than that of the mesh belt on the uppermost layer. The superiors guipure mud is through preliminary mummification back, and the adhesion reduces, and the speed of intermediate level guipure is slower relatively, and then the meeting of laying of the mud of intermediate level guipure is thick a little, and the same reason, when mud falls into the lower floor guipure, the mud strip just can become the support state to make the contact surface of hot dry wind and mud strengthen, fully bring out the moisture in the mud, make the gaseous furthest in the high temperature high humidity region be close to the saturation, bigger improvement heat transfer system's work efficiency.
The dehumidification heat pump system comprises a bag-type dust collector communicated with the ventilation duct, an air outlet of the bag-type dust collector is connected with a compressor through a heat exchanger, the compressor is connected with an evaporator, an air outlet of the evaporator is communicated with a condenser B through the heat exchanger, and an outlet of the condenser B is communicated with an air supply pipeline of the shell-free fan. After the high-temperature and high-humidity gas is subjected to dust removal and dehumidification by the heat exchanger, the compressor is used for working, the evaporator is used for cooling the gas again, so that the temperature of the gas is reduced to be below a dew point, and the moisture in the gas is separated out, thereby achieving the purpose of dehumidification; after dehumidification, the gas absorbs heat through a heat exchanger, the temperature is raised preliminarily, the gas is heated again through a condenser and a compressor, finally the gas which is changed into high-temperature dry gas enters a mesh belt system again for recycling, and an infinite energy-saving circulation system from drying to dehumidification to drying is built.
And a water outlet of the water dragging disc at the bottom of the evaporator is communicated with a factory drainage pipeline to carry out unified sewage treatment.
The mesh belt system and the combined heat exchange system are both assembled into a sealed space by adopting a polyurethane heat-insulating material.
The utility model has the advantages of reasonable design, can realize the automation, the serialization, low maintenance, mass production, according to mud nature, handle papermaking mud, municipal sludge, electroplating sludge etc, utilize air heat energy to be the heat source, carry out low temperature drying dehumidification mummification to mud, adopt airtight heat pump drying dehumidification technique, do not produce any used heat, the abandonment, heat pump stoving is energy-efficient, combine automatic control technology simultaneously, can fully realize the minimizing of mud, the stabilization, innoxious and resourceful treatment, the problem that equipment and technology can not high-efficiently match in the original production has been solved.
(IV) description of the drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a process flow chart of the present invention.
In the figure, a hopper 1, a mesh belt system 2, a mesh belt conveyor 3, a shell-free fan 4, a composite heat exchange system 5, an axial flow fan 6, a condenser A7, a middle fan 8, a dry mud hopper 9, a scraper conveyor 10, a bag-type dust remover 11, a heat exchanger 12, a compressor 13, an evaporator 14 and a condenser B15.
(V) detailed description of the preferred embodiments
The attached drawing is a concrete embodiment of the utility model. This embodiment includes hopper 1 of splendid attire wet sludge, hopper 1 export corresponds inclosed guipure system 2, guipure system 2 is including corresponding guipure conveyer 3 of hopper 1 export, guipure system 2 bottom sets up just to guipure conveyer 3's no shell fan 4, guipure system 2 top is provided with intercommunication combined type heat transfer system 5's last axial fan 6, combined type heat transfer system 5 is including two parallel ventilation pipes of the export of axial fan 6 in the intercommunication, one of them ventilation pipe communicates condenser A7 in proper order, middle fan 8, the air outlet of middle fan 8 is just to guipure conveyer 3 of guipure system 2, another ventilation pipe intercommunication dehumidification heat pump system, the air outlet of dehumidification heat pump system communicates the blast pipe way of no shell fan 4.
The mesh belt conveyor 3 is a three-layer mesh belt conveying structure, the tail end of the mesh belt conveying structure at the lowest layer is provided with a dry mud hopper 9, and the dry mud hopper 9 is communicated with the outside of the mesh belt system 2 through a scraper conveyor 10 at the bottom; the dehumidification heat pump system comprises a bag-type dust collector 11 communicated with the air duct, an air outlet of the bag-type dust collector 11 is connected with a compressor 13 through a heat exchanger 12, the compressor 13 is connected with an evaporator 14, an air outlet of the evaporator 14 is communicated with a condenser B15 through the heat exchanger 12, and an outlet of a condenser B15 is communicated with an air supply pipeline of the shell-less fan 4; the conveying speeds of the middle mesh belt and the lowest mesh belt are consistent, and the conveying speeds of the middle mesh belt and the lowest mesh belt are lower than that of the mesh belt on the uppermost layer.
Mud sends into guipure system 2 through guipure conveyer 3, cut into the strip with mud through guipure conveyer 3 mixer and make-up machine from the area, fall into on the guipure of slow walking by gravity, hot dry wind rises with very fast speed by the guipure bottom, with the quick mummification of mud in-process of mud contact, humid air then gets into combined type heat transfer system 5, make humid air temperature be less than the dew point through the mode of cooling down, steam can condense and discharge system to factory sewage pipeline, make the air after "dehydration" heat up to become hot dry air through condenser B, send into guipure system 2 and continue mummification mud, air cyclic utilization in the overall process, so no tail gas produces. The utility model discloses the system can reduce mud moisture content to 40% once, and mummification back mud adopts full closed conveyer book to see off guipure system 2, through connecing the car, transporting, carries out follow-up utilization.
The utility model discloses a mesh belt conveyor 3 adopts the design of three-layer guipure, area is little, optimize on operation method, through remote control drive motor, make upper mesh belt mud thin, there is the wind that shell-less fan 4 that pierces through from the bottom brought and the wind that comes from middle fan 8, dry it, just handle moisture in the wet mud, under last axial fan 6's effect, bring high-temperature and high-humidity gas into combined type heat exchange system 5, the gas of partly high humidity and high heat heats gas through condenser A7 again, get into mesh belt system 2 circulation under middle fan's effect, and the gas of another part high temperature and high humidity then gets into high temperature and dry's gas again and gets into mesh belt system 2 cyclic utilization again through the dehumidification reheating of heat pump (heat exchanger 12, compressor 13, evaporimeter 14 and condenser B15 cooperation use).
In the mesh belt conveyor, after the sludge of the upper mesh belt is primarily dried, the adhesiveness is reduced, the speed of the middle mesh belt is slowed down, and the sludge of the middle mesh belt is thicker; in a similar way, when mud falls into the mesh belt of lower floor, the mud strip just can become the support state to the dry wind that makes the bottom fan bring increases with the contact surface of mud, thereby bigger raises the efficiency, and the better moisture of taking away in the mud increases the efficiency of system, and from this can know, three-layer mesh belt is more high-efficient.
Conveying the dried sludge out of the mesh belt system 2 by a scraper conveyor 10, and recycling; the sludge is completely isolated and sealed from the outside by the polyurethane heat-insulating material in the drying process, the heat energy inside the sludge is recycled, no loss is caused, the efficiency is high, no waste gas is discharged, and the sludge drying device is safe and environment-friendly.
The utility model discloses the device compares with traditional heat drying processing apparatus, and its main advantage is:
(1) the system has high degree of automation, the PLC automatically optimizes the operation and the operation is simple;
(2) the equipment adopts a high-efficiency heat recovery technology, is closed and recycled, and has low operation cost;
(3) a closed low-temperature drying process is adopted, so that the method is safe and reliable, and no waste gas is generated in the treatment process;
(4) the device is arranged in a layered manner, small in floor area and simple to install, and does not need matched civil engineering;
(5) the whole machine is made of stainless steel and other anticorrosive materials, has long service life and is suitable for treating various sludge;
(6) and by adopting the combined heat exchange system, the efficiency of the whole unit is improved by more than 20% compared with that of the traditional heat pump drying system.

Claims (8)

1. The utility model provides a closed cycle equipment for sludge drying, includes hopper (1) of splendid attire wet mud, its characterized in that: the outlet of the hopper (1) corresponds to the closed mesh belt system (2), the mesh belt system (2) comprises a mesh belt conveyor (3) corresponding to the outlet of the hopper (1), a shell-free fan (4) facing the mesh belt conveyor (3) is arranged at the bottom of the mesh belt system (2), an upper axial flow fan (6) communicated with the composite heat exchange system (5) is arranged at the top of the mesh belt system (2), the composite heat exchange system (5) comprises two parallel ventilation pipes communicated with the outlet of the upper axial flow fan (6), one ventilation pipe is sequentially communicated with a condenser A (7) and an intermediate fan (8), the air outlet of the intermediate fan (8) is facing the mesh belt conveyor (3) of the mesh belt system (2), the other ventilation pipe is communicated with a dehumidification heat pump system, and the air outlet of the dehumidification heat pump system is communicated with an air supply.
2. The closed cycle apparatus for sludge drying according to claim 1, wherein: the hopper (1) is arranged in the mesh belt system (2), or the outlet of the hopper (1) is arranged in the mesh belt system (2).
3. The closed cycle apparatus for sludge drying according to claim 1, wherein: and a stirrer and a forming machine are arranged at the bottom of the hopper (1).
4. The closed cycle apparatus for sludge drying according to claim 1, wherein: the mesh belt conveyor (3) is of a three-layer mesh belt conveying structure, a dry mud hopper (9) is installed at the tail end of the mesh belt conveying structure at the lowest layer, and the dry mud hopper (9) is communicated with the outside of the mesh belt system (2) through a scraper conveyor (10) at the bottom.
5. The closed cycle apparatus for sludge drying according to claim 1, wherein: the dehumidification heat pump system comprises a bag-type dust collector (11) communicated with the ventilation duct, an air outlet of the bag-type dust collector (11) is connected with a compressor (13) through a heat exchanger (12), the compressor (13) is connected with an evaporator (14), an air outlet of the evaporator (14) is communicated with a condenser B (15) through the heat exchanger (12), and an outlet of the condenser B (15) is communicated with an air supply pipeline of the shell-free fan (4).
6. The closed cycle apparatus for sludge drying according to claim 1, wherein: the mesh belt system (2) and the combined heat exchange system (5) are both assembled into a sealed space by adopting a polyurethane heat-insulating material.
7. The closed cycle apparatus for sludge drying according to claim 4, wherein: in the three-layer mesh belt conveying structure, the conveying speeds of the middle mesh belt and the lowest mesh belt are consistent, and the conveying speeds of the middle mesh belt and the lowest mesh belt are lower than that of the mesh belt on the uppermost layer.
8. The closed cycle apparatus for sludge drying according to claim 5, wherein: and the water outlet of the water dragging disc at the bottom of the evaporator (14) is communicated with a factory drainage pipeline.
CN201920493306.3U 2019-04-12 2019-04-12 Closed circulation equipment for sludge drying Active CN209940798U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920493306.3U CN209940798U (en) 2019-04-12 2019-04-12 Closed circulation equipment for sludge drying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920493306.3U CN209940798U (en) 2019-04-12 2019-04-12 Closed circulation equipment for sludge drying

Publications (1)

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CN209940798U true CN209940798U (en) 2020-01-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109956644A (en) * 2019-04-12 2019-07-02 山东福航新能源环保股份有限公司 A kind of sealing and circulating equipment for sludge drying
CN113185077A (en) * 2020-05-12 2021-07-30 广东吉康环境系统科技有限公司 Low-temperature sludge drying device for discharging, cooling and heat recovery and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109956644A (en) * 2019-04-12 2019-07-02 山东福航新能源环保股份有限公司 A kind of sealing and circulating equipment for sludge drying
CN113185077A (en) * 2020-05-12 2021-07-30 广东吉康环境系统科技有限公司 Low-temperature sludge drying device for discharging, cooling and heat recovery and control method thereof

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