CN217297650U

CN217297650U - Batch type sludge drying device

Info

Publication number: CN217297650U
Application number: CN202123408189.2U
Authority: CN
Inventors: 张甲甲
Original assignee: Suzhou Dongfangrumyuan Device Manufacturing Co ltd
Current assignee: Suzhou Dongfangrumyuan Device Manufacturing Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-26
Anticipated expiration: 2031-12-31

Abstract

A batch type sludge drying device comprises a frame, a heat pump system, a drying system and an electric control system; wherein the drying system is mounted on one side of the rack; the heat pump system is arranged on the rack and positioned beside the drying system; the heat pump system is communicated with the interior of the drying system through a pipeline; the electric control system is electrically connected with the heat pump system and the drying system; wherein: the heat pump system comprises a compressor, a condenser, an expansion valve, an evaporator and a centrifugal fan; the drying system comprises an air cooler, a drying chamber and a drying bed. The device of the utility model is small, easy operation, the unit can adjust the position or remove as required at any time. The unit operates by itself after the time is set, and the manpower is saved. And enterprises can arrange automatic operation at night according to the sludge amount, thereby greatly saving the production cost.

Description

Batch type sludge drying device

Technical Field

The utility model belongs to the technical field of sludge treatment equipment, a batch formula sludge drying device is related to.

Background

With the large-scale construction and operation of sewage treatment plants in China, the sludge yield is greatly increased, the threat to environmental pollution is more and more serious, the water content of the dewatered sludge is still higher than 80 percent mostly, and the dewatered sludge contains a large amount of toxic and harmful substances, is unstable in property and difficult to recycle, so that proper drying treatment is necessary before composting or incineration and other final treatment.

Sludge drying machine uses van-type and belt to be main in the existing market, above two kinds of units all can only be put at indoor use, some projects are owing to receive the use place restriction, the desiccator equipment must be put outdoors, the whole limitation of using is great, and the whole mummification degree of consistency of current desiccator is not good, can not carry out hierarchical secondary mummification to mud and handle, very easily reduced sludge drying's effect, and current desiccator can not be stable provide the circulation heat, very big reduction whole mummification precision. Generally speaking, the existing sludge drying machine has the following defects:

1. the energy consumption is high, the drying is an energy net consumption process, steam or heat conducting oil is used as a heat source, a large amount of petrochemical energy is consumed, and the energy consumption cost generally accounts for more than 80% of the total treatment cost; the existing drying equipment adopts a heating and dehumidifying mode, so that the energy utilization rate is low; the steam consumption is about 1.5 tons per ton of water evaporated, and the electricity consumption is about 70 kw.h;

2. the existing high-temperature flue gas waste heat drying has high drying temperature, large dust amount and difficult treatment of discharged tail gas;

3. the method has safety risk, the drying temperature of more than 100 ℃ has safety risk, and the nitrogen adding mode is usually adopted to reduce the oxygen content in the sludge drying process to avoid explosion;

4. the method is not environment-friendly, discharges a large amount of odor, and needs to build a responsible tail gas treatment system; the drying workshop has poor working environment; a heat source is supplied in the drying process by a boiler, a large amount of tail gas is discharged, and the problem of secondary sludge is solved;

5. the drying process is complex, a sticky area exists, the number of wearing parts of the device is large, and the maintenance amount is large.

Therefore, how to solve the above problems is a matter of intensive research by those skilled in the art.

Disclosure of Invention

In order to solve the technical problem, an object of the utility model is to provide a batch sludge drying device.

In order to achieve the above object, the utility model provides a following technical scheme: a batch type sludge drying device comprises a frame, a heat pump system, a drying system and an electric control system; wherein the drying system is mounted on one side of the rack; the heat pump system is arranged on the rack and positioned beside the drying system; the heat pump system is communicated with the interior of the drying system through a pipeline; the electric control system is electrically connected with the heat pump system and the drying system; wherein:

the heat pump system comprises a compressor, a condenser, an expansion valve, an evaporator and a centrifugal fan;

the drying system comprises an air cooler, a drying chamber and a drying bed; the air outlet of the air cooler is arranged towards the drying chamber, the number of the drying beds is two, and the two drying beds are arranged in the drying chamber at intervals from top to bottom; pulley rails are arranged on the inner wall of the drying chamber corresponding to each drying bed; the drying bed is arranged on the pulley track in a sliding mode and can slide in and out along the pulley track.

Further, in the heat pump system, the compressor is arranged below the left side of the rack, the centrifugal fan is arranged above the front side of the compressor, the expansion valve is arranged below the centrifugal fan, and the condenser and the evaporator are arranged behind the right side of the rack in parallel; the input end and the output end of the compressor are respectively communicated with the evaporator and the condenser; the expansion valve is connected between the compressor and the condenser.

Furthermore, each drying bed consists of a stainless steel frame, a movable baffle, a chain wheel, a mesh belt and a transmission square shaft; the mesh belt is arranged in the stainless steel frame, and the chain wheel is arranged below the mesh belt; the mesh belt can be driven to move back and forth on the stainless steel frame; the movable baffle is clamped at the front end of the stainless steel frame and is positioned above the mesh belt; the transmission square shaft is arranged on the stainless steel frame and is in transmission connection with the chain wheel; and the front ends of the two sides of the stainless steel frame are respectively provided with a limiting device.

Furthermore, the front end of the stainless steel frame is also provided with a push-pull handle.

Furthermore, the device also comprises a moment arm handle which is not matched with the front end of the transmission square shaft.

The utility model discloses a theory of operation: when loading materials, the lower layer drying bed is pulled out, the movable baffle is pulled out, the materials are evenly spread on the mesh belt, the handle of the force arm is shaken, and the mesh belt is moved, so that the mesh belt is fully spread. Pushing the drying bed into a drying chamber after the drying bed is fully paved; the same procedure is carried out, the upper layer drying bed is pulled out, and the material is pushed into the drying chamber after being filled. The electric control unit is started to operate for about 5 hours and is stopped. Pulling out the upper layer drying bed, drawing out the movable baffle, shaking the arm handle to move the mesh belt, transferring the dry mud on the mesh belt into a ton bag and other containers, and pushing the upper layer drying bed into a drying chamber after cleaning. Similarly, the lower layer drying bed is pulled out, and after the drying mud is emptied, the drying bed is pushed into a drying chamber or is directly filled with wet mud for the next round of drying.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses heat pump system main function heats the material and detach moisture. The air conditioner mainly comprises a compressor, a condenser, an expansion valve, an evaporator and a centrifugal fan. The air is heated by the condenser and dehumidified by the evaporator.

2. The drying bed of the utility model consists of a stainless steel frame, a movable baffle, a chain wheel, a mesh belt and a transmission square boat. The drying bed is arranged on the pulley track and can be pulled out of the drying box, and the track is provided with a limiting device to prevent the drying bed from falling off. After the drying bed is pulled out of the box body, the arm handle is used for matching with the transmission square shaft, and the mesh belt can move forward or backward when the arm handle is shaken.

3. The utility model discloses the device carries out dry decrement to wet mud, solves the problem that infiltration, peculiar smell were deposited to the wet mud of enterprise, subtracts heavy back mud and store, shift the convenience. In addition, when dangerous waste sludge is disposed, high cost is collected according to tons, and after wet sludge is dried and reduced, the weight is reduced by more than half, so that the disposal cost of an enterprise is greatly saved.

4. The utility model discloses the device is small, and easy operation is applicable to the enterprise that the sludge amount is less than 1 ton/day, and does not need extra auxiliary assembly, and the unit can adjust the position or remove as required at any time. And the unit does not need to be on duty when running, and the unit runs by itself after the set time, thereby saving the manpower. And enterprises can arrange automatic operation at night according to the sludge amount, thereby greatly saving the production cost.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic view of the force arm handle and the transmission square shaft of the present invention.

In the above figures: 1. a frame; 2. a compressor; 3. a condenser; 4. an expansion valve; 5. an evaporator; 6. a centrifugal fan; 7. an air cooler; 8. a drying chamber; 10. a drying bed; 11. a stainless steel frame; 12. a movable baffle; 13. a sprocket; 14. a mesh belt; 15. a transmission square shaft; 16. a pulley track; 17. a push-pull handle; 18. a limiting device; 19. a moment arm handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 2, a batch-type sludge drying device includes a frame 1, a heat pump system, a drying system and an electric control system; wherein the drying system is installed on one side of the frame 1; the heat pump system is arranged on the rack 1 and is positioned beside the drying system; the heat pump system is communicated with the interior of the drying system through a pipeline; the electric control system is electrically connected with the heat pump system and the drying system; wherein:

the heat pump system comprises a compressor 2, a condenser 3, an expansion valve 4, an evaporator 5 and a centrifugal fan 6;

the drying system comprises an air cooler 7, a drying chamber 8 and a drying bed 10; the air outlet of the air cooler 7 is arranged towards the drying chamber 8, the number of the drying beds 10 is two, and the two drying beds 10 are arranged in the drying chamber 8 at intervals from top to bottom; a pulley track 16 is arranged on the inner wall of the drying chamber 8 corresponding to each drying bed 10; the drying bed 10 is slidably disposed on the pulley rail 16 and can slide in and out along the pulley rail 16.

Further, in the heat pump system, the compressor 2 is arranged below the left side of the rack 1, the centrifugal fan 6 is arranged above the front side of the compressor 2, the expansion valve 4 is arranged below the centrifugal fan, and the condenser 3 and the evaporator 5 are arranged behind the right side of the rack 1 in parallel; the input end and the output end of the compressor 2 are respectively communicated with the evaporator 5 and the condenser 3; the expansion valve is connected between the compressor 2 and the condenser 3.

Further, each drying bed 10 consists of a stainless steel frame 11, a movable baffle 12, a chain wheel 13, a mesh belt 14 and a transmission square shaft 15; the mesh belt 14 is arranged in the stainless steel frame 11, and the chain wheel 13 is arranged below the mesh belt 14; and can drive the mesh belt 14 to move back and forth on the stainless steel frame 11; the movable baffle 12 is clamped at the front end of the stainless steel frame 11 and is positioned above the mesh belt 14; the transmission square shaft 15 is arranged on the stainless steel frame 11 and is in transmission connection with the chain wheel 13; the front ends of the two sides of the stainless steel frame 11 are both provided with a limiting device 18.

Further, the front end of the stainless steel frame 11 is also provided with a push-pull handle 17.

Further, a moment arm handle 19 which is not matched with the front end of the transmission square shaft 15 is also included.

When loading materials, the lower layer drying bed is pulled out, the movable baffle is pulled out, the materials are evenly spread on the mesh belt, the handle of the force arm is shaken, and the mesh belt is moved, so that the mesh belt is fully spread. Pushing the drying bed into a drying chamber after the drying bed is fully paved; the same procedure is carried out, the upper layer drying bed is pulled out, and the material is pushed into the drying chamber after being filled. The electric control unit is started to operate for about 5 hours and is stopped. Pulling out the upper layer drying bed, drawing out the movable baffle, shaking the arm handle to move the mesh belt, transferring the dry mud on the mesh belt into a ton bag and other containers, and pushing the upper layer drying bed into a drying chamber after cleaning. Similarly, the lower layer drying bed is pulled out, and after the drying mud is emptied, the drying bed is pushed into a drying chamber or is directly filled with wet mud for the next round of drying.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a batch type sludge drying device which characterized in that: comprises a frame (1), a heat pump system, a drying system and an electric control system; wherein the drying system is mounted on one side of the frame (1); the heat pump system is arranged on the rack (1) and is positioned beside the drying system; the heat pump system is communicated with the interior of the drying system through a pipeline; the electric control system is electrically connected with the heat pump system and the drying system; wherein:

the heat pump system comprises a compressor (2), a condenser (3), an expansion valve (4), an evaporator (5) and a centrifugal fan (6);

the drying system comprises an air cooler (7), a drying chamber (8) and a drying bed (10); the air outlet of the air cooler (7) is arranged towards the drying chamber (8), the number of the drying beds (10) is two, and the two drying beds (10) are arranged in the drying chamber (8) at an interval from top to bottom; pulley rails (16) are arranged on the inner wall of the drying chamber (8) corresponding to each drying bed (10); the drying bed (10) is arranged on the pulley rail (16) in a sliding mode and can slide in and out along the pulley rail (16).

2. The batch-type sludge drying device of claim 1, wherein: in the heat pump system, the compressor (2) is arranged below the left side of the rack (1), the centrifugal fan (6) is arranged above the front side of the compressor (2), the expansion valve (4) is arranged below the centrifugal fan, and the condenser (3) and the evaporator (5) are arranged behind the right side of the rack (1) in parallel; the input end and the output end of the compressor (2) are respectively communicated with the evaporator (5) and the condenser (3); the expansion valve is connected between the compressor (2) and the condenser (3).

3. The batch-type sludge drying device of claim 1, wherein: each drying bed (10) consists of a stainless steel frame (11), a movable baffle (12), a chain wheel (13), a mesh belt (14) and a transmission square shaft (15); the mesh belt (14) is arranged in the stainless steel frame (11), and the chain wheel (13) is arranged below the mesh belt (14); the mesh belt (14) can be driven to move back and forth on the stainless steel frame (11); the movable baffle (12) is clamped at the front end of the stainless steel frame (11) and is positioned above the mesh belt (14); the transmission square shaft (15) is arranged on the stainless steel frame (11) and is in transmission connection with the chain wheel (13); the front ends of the two sides of the stainless steel frame (11) are respectively provided with a limiting device (18).

4. The batch-type sludge drying device of claim 3, wherein: the front end of the stainless steel frame (11) is also provided with a push-pull handle (17).

5. The batch-type sludge drying device of claim 3, wherein: and the front end of the transmission square shaft (15) is not matched with a moment arm handle (19).