CN210419689U - Box sludge drying machine - Google Patents
Box sludge drying machine Download PDFInfo
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- CN210419689U CN210419689U CN201920579881.5U CN201920579881U CN210419689U CN 210419689 U CN210419689 U CN 210419689U CN 201920579881 U CN201920579881 U CN 201920579881U CN 210419689 U CN210419689 U CN 210419689U
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Abstract
A box-type sludge dryer comprises a drying box body, a modular heat pump dehumidification unit, a sludge conveying line, a circulating fan unit and a circulating air filtering mechanism, wherein the heat pump dehumidification unit, the sludge conveying line and the circulating air filtering mechanism are arranged in the drying box body; the heat pump dehumidification unit comprises a compressor, a condenser, a drying filter, a thermal expansion valve and an evaporator which are sequentially connected to the same loop through pipelines, a circulating fan unit is arranged on the top of the box, an air inlet of the circulating fan unit takes air from the air outlet side of the condenser, an air outlet of the circulating fan unit blows wet sludge on a sludge conveying line, circulating air with sludge moisture enters a circulating air filtering mechanism through a circulating air expansion cavity to be filtered, and the filtered circulating air enters the heat pump dehumidification unit to be subjected to circulating dehydration heating. The utility model discloses energy-conservation, subtract consume, can high-efficient stoving mud.
Description
Technical Field
The utility model relates to a stoving technical field especially relates to a box sludge drying machine.
Background
At present, sludge heat pump high-temperature dryers are available in the market, but a heat pump main machine and a drying line are independent respectively and are connected into a heat pump hot air dehumidification drying system through air openings, and the heat pump main machine and the drying line are of aluminum alloy frame structures and are formed by splicing heat insulation boards. Although this kind of mud drying equipment compact structure, the outward appearance is better, but equipment operation has more problems, shows in:
1. the heat insulation is poor, the aluminum alloy frame has a heat bridge, and the heat loss is large;
2. compact structure, small internal volume and small air capacity, which causes insufficient air capacity of sludge moisture evaporation and influences the sludge moisture evaporation speed.
3. Because the structure is compact, all high-temperature hot air passes through the evaporator, the load of the evaporator is heavy, the evaporation temperature is overhigh, and the dehydration effect is poor; meanwhile, the load of the evaporator is heavy, so that the exhaust temperature of the compressor is overhigh, the pressure of a heat pump system is overhigh, the energy consumption is low, the service life of the compressor is short, and the like.
4. Because the circulating air duct is small, a high static pressure centrifugal fan is adopted, the air speed is high, a large amount of sludge dust is generated when the circulating air duct blows sludge, the circulating air duct is cleaned every day, and the service life of a filter screen at the circulating air inlet of the evaporator is not long.
5. Because the wind speed is big, the dust that produces breaks through the filter screen easily, gets into the heat exchanger and goes, and dust is fast, and good easy the gluing has accelerated the corruption of heat exchanger on the fin of heat exchanger.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the box-type sludge dryer for drying sludge in an energy-saving, consumption-reducing and efficient manner is provided.
In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:
a box-type sludge dryer comprises a drying box body, a modular heat pump dehumidification unit, a sludge conveying line, a circulating fan unit and a circulating air filtering mechanism, wherein the heat pump dehumidification unit, the sludge conveying line and the circulating air filtering mechanism are arranged in the drying box body, the heat pump dehumidification unit and the sludge conveying line are installed in a staggered mode to form a circulating air expansion cavity, the circulating air expansion cavity is separated from the heat pump dehumidification unit through the circulating air filtering mechanism, the heat pump dehumidification unit comprises a compressor, a condenser, a drying filter, a thermal expansion valve and an evaporator which are sequentially connected to the same loop through pipelines, the circulating fan unit is arranged above the sludge conveying line, an air inlet of the circulating fan unit takes air from an air outlet side of the condenser, an air outlet of the circulating fan unit blows wet sludge on the sludge conveying line, circulating air with sludge moisture enters the circulating air filtering mechanism through the circulating air expansion cavity to be filtered, and the filtered circulating air enters a heat pump dehumidification unit for circulating dehydration and heating.
The box-type sludge dryer dries sludge in the box body, reduces heat loss, saves energy and reduces consumption, the sludge conveying line is provided with the circulating fan unit which can efficiently dry the sludge, circulating air with sludge moisture enters the circulating air filtering mechanism through the circulating air expansion cavity to be filtered, the filtered circulating air enters the heat pump dehumidification unit to be circularly dehydrated and heated, and the service life of the modular heat pump dehumidification unit can be prolonged.
In one embodiment, each sludge conveying line comprises a plurality of sludge conveying belts, and a circulating fan unit is correspondingly arranged above each sludge conveying belt.
In one embodiment, the sludge treatment system further comprises a slitter arranged above the sludge conveying line, wherein the slitter is used for slitting sludge and guiding the slit sludge onto the top layer sludge conveying belt.
In one embodiment, the slitter comprises a power mechanism, a mud box, a double-mud-pressing rotating shaft and a double-mud-pressing roller, wherein the double-mud-pressing rotating shaft and the double-mud-pressing roller are arranged in the mud box, the double-mud-pressing roller is arranged below the double-mud-pressing rotating shaft, mud pressing handles are arranged on the double-mud-pressing rotating shaft in an staggered mode, the power mechanism drives the double-mud-pressing rotating shaft and the double-mud-pressing roller to rotate, mud falls into the double-mud-pressing roller below the double-mud-pressing rotating shaft after being roughly cut through the mud pressing handles on the double-mud-pressing rotating shaft, and strip-shaped mud is formed through fine cutting.
In one embodiment, one side of each layer of the sludge conveying belt is provided with a lower mud plate, and the lower mud plate enables sludge on the top layer of sludge conveying belt to be conveyed to the bottom layer of sludge conveying belt layer by layer and finally output from the sludge outlet.
In one embodiment, the condenser comprises a first condenser and a second condenser which are communicated, and the first condenser is arranged above the second condenser.
In one of them embodiment, still include the heat extraction system, the heat extraction system includes circulating water pump, water pipe, hot water extraction coil pipe and heat extraction fan, and circulating water pump, water pipe, heat extraction coil pipe form closed structure, and the heat extraction fan sets up the roof, and the heat extraction fan dispels the heat to hot water extraction coil pipe and first condenser.
In one embodiment, the circulating fan set comprises a plurality of axial-flow circulating fans.
In one embodiment, the air outlet direction of the circulating air expansion cavity is perpendicular to the air inlet direction of the circulating air filtering mechanism.
In one embodiment, the heat pump dehumidification unit further comprises an air partition plate group, the circulating air expansion cavity is separated from the heat pump dehumidification unit through the air partition plate group, and the circulating air filtering mechanism is arranged on the air partition plate group.
Drawings
FIG. 1 is an external structure view of a box-type sludge dryer of the present invention;
FIG. 2 is an internal structure view of the box-type sludge dryer of the present invention;
FIG. 3 is a structural diagram of a heat pump dehumidifier unit of the box-type sludge dryer of the present invention;
FIG. 4 is a structural diagram of a sludge conveying line of the box-type sludge dryer of the present invention;
FIG. 5 is a structural diagram of a slitter of the box-type sludge dryer of the present invention;
wherein the content of the first and second substances,
10. drying the box body;
20. a heat pump dehumidification unit; 21. compressor, 22, condenser; 221. a first condenser; 222. a second condenser; 23. an evaporator;
30. a sludge conveying line; 31. a sludge conveyer belt, 32 and a lower sludge plate; 33. a sludge outlet;
40. a circulating fan unit;
50. a circulating air filtering mechanism;
60. a circulating air expansion cavity;
70. a heat removal system; 71. a heat and water extraction coil; 72. a heat exhaust fan;
80. a slitter; 81. a power mechanism; 82. a mud box 83, a double mud-pressing rotating shaft; 84. two mud cylinders, 85, mud guide plate.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "coupled" to another element, it can be directly coupled to the other element or intervening elements may also be present.
For convenience of description, the terms "left", "right", "up" and "down" used hereinafter are the same as the left, right, up and down directions of the drawings, but do not limit the structure of the present invention.
As shown in fig. 1 to 5, a box-type sludge dryer includes a drying box 10, a heat pump dehumidification unit 20, a sludge conveying line 30, a circulating fan unit 40 and a circulating fan filtering mechanism 50, wherein the heat pump dehumidification unit 20, the sludge conveying line 30 and the circulating fan filtering mechanism 50 are disposed in the drying box 10, the circulating fan unit 40 is disposed on the top of the box above the sludge conveying line 30 and covered by a fan cover, the heat pump dehumidification unit 20 and the sludge conveying line 30 are installed in a staggered manner to form a circulating fan expansion cavity 60, the circulating fan expansion cavity 60 is separated from the heat pump dehumidification unit 20 by a wind partition plate group, the wind partition plate group includes a plurality of wind partition plates, the wind partition plates enclose the heat pump dehumidification unit 20 and separate from the circulating fan expansion cavity 60, and the circulating fan filtering mechanism 50 is disposed on the wind partition plate on one side of the circulating fan expansion cavity 60; the transfer chain that this embodiment indicates is the conveyer belt.
The heat pump dehumidification unit 20 comprises a compressor 21, a condenser 22, a drying filter, a thermal expansion valve, a gas-liquid separator and an evaporator 23 which are sequentially connected to the same loop through pipelines, an air inlet of a circulating fan unit 40 takes air from an air outlet side of the condenser 22, an air outlet of the circulating fan unit 40 blows wet sludge on a sludge conveying line 30, circulating air with sludge moisture enters a circulating air filtering mechanism 50 through a circulating air expansion cavity 60 to be filtered, and the filtered circulating air enters the heat pump dehumidification unit 20 to be circularly dehydrated and heated. Preferably, the air outlet of the circulating air expansion cavity 60 is perpendicular to the air inlet of the circulating air filtering mechanism 50, and the circulating air with sludge moisture is discharged from the sludge conveying line 30, expanded and decelerated, folded at an angle of 90 degrees, enters the circulating air filtering mechanism 50, and then enters the heat pump dehumidification unit 20 to be dehydrated, heated and recycled through the steam device and the condenser 22.
In this embodiment, each sludge conveying line 30 includes a plurality of sludge conveying belts 31, preferably two to four layers, one side of each sludge conveying belt 31 is provided with a lower mud plate 32, and the lower mud plate 32 conveys the sludge on the top sludge conveying belt 31 to the bottom sludge conveying belt 31 layer by layer, and finally outputs the sludge from the sludge outlet 33.
In this embodiment, a circulating fan set 40 is correspondingly disposed above each layer of sludge conveying belt 31. The circulation fan group 40 includes a plurality of axial-flow type circulation fans. The axial-flow circulating fans of each layer are arranged on the inner rack of the drying box body 10 above the sludge conveying belt 31 at intervals along the length direction of the sludge conveying belt 31.
In this embodiment, the sludge treatment system further includes a slitter 80 disposed above the sludge conveying line 30, wherein the slitter 80 slits the sludge and guides the slit sludge onto the top sludge conveying belt 31.
In this embodiment, the slitter 80 includes a power mechanism 81, a mud box 82, and two mud pressing rotating shafts 83 and two mud pressing rollers 84 disposed in the mud box 82, specifically, a mud guide plate 85 is disposed in the mud box 82, the two mud pressing rotating shafts 83 are disposed below the mud guide plate 85, the two mud pressing rollers 84 are disposed below the two mud pressing rotating shafts 83, mud pressing handles are disposed on the two mud pressing rotating shafts 83 in an staggered manner, the power mechanism 81 drives the two mud pressing rotating shafts 83 and the mud pressing rollers 84 to rotate, after mud falls into a space between the two mud pressing rotating shafts 83 from the mud guide plate 85, the mud falls onto the two mud pressing rollers 84 below the two mud pressing rotating shafts 83 after being roughly cut by the mud pressing handles on the two mud pressing rotating shafts 83, and strip mud is formed by fine cutting of the two mud pressing rollers 84 and falls onto the top layer mud conveying belt 31 from the bottom of the mud box 82.
In this embodiment, the condenser 22 includes a first condenser 221 and a second condenser 222 which are communicated with each other, and the first condenser 221 is disposed above the second condenser 222. That is, the heat pump dehumidifier 20 includes a compressor 21, a first condenser 221, a second condenser 222, a dry filter, a thermal expansion valve, a gas-liquid separator, and an evaporator 23, which are connected to the same circuit in this order through pipes.
In this embodiment, still include heat removal system 70, heat removal system 70 includes circulating water pump, water pipe, hot water removal coil 71 and heat removal fan 72, and circulating water pump, water pipe, hot water removal coil 71 form closed structure, and hot water removal coil 71 is connected with first condenser 221, and heat removal fan 72 sets up the roof, and heat removal fan 72 dispels the heat to hot water removal coil 71 and first condenser 22.
The utility model discloses the theory of operation: the slitter 80 conveys the sludge slivers to the top layer sludge conveying belt 31 and conveys the sludge slivers to the bottom layer sludge conveying belt 31 layer by layer through the lower mud plate 32, when the modular heat pump dehumidification unit 20 works, the compressor 21 discharges high-temperature and high-pressure refrigerant gas into the first condenser 221, sensible heat is removed, the refrigerant is cooled for the first time and then enters the second condenser 222 for further condensation and heat release, and low-temperature and high-pressure refrigerant liquid is changed; the high-pressure refrigerant liquid enters the thermostatic expansion valve for expansion, then enters the evaporator 23 for evaporation, and returns to the compressor 21 after evaporation, thus completing the heat pump dehumidification cycle. The air inlet of the circulating fan set 40 on each layer of sludge conveying belt 31 takes air from the air outlet side of the first condenser 221, and the air outlet of the circulating fan set 40 horizontally blows wet sludge on the layer of sludge conveying belt 31.
And the circulating air with the sludge moisture is expanded and decelerated after coming out of the sludge conveying belts 31 of all layers, folded at an angle of 90 degrees, enters the circulating air filtering mechanism 50, and enters the heat pump dehumidification unit 20 to be dehydrated, heated and recycled through the steam device and the second condenser 222. Then, the air inlets of the circulating fan sets 40 on each layer of sludge conveying belt 31 draw air from the air outlet sides of the first condenser 221 and the second condenser 222, and the air outlets of the circulating fan sets 40 horizontally blow wet sludge on the layer of sludge conveying belt 31. So as to circularly work.
When the temperature of the drying box body 10 reaches the set heat extraction temperature of the unit, the circulating water pump is started, the heat extraction water coil 71 forms water circulation flow, and redundant heat in the drying box body 10 is exhausted out of the drying box through water circulation. Because the circulating water in the water coil takes away the heat of the circulating air entering the first condenser 221, the temperature of the circulating air entering the first condenser 221 is reduced, the operation load of the compressor 21 is immediately reduced, the compressor 21 can normally operate, and meanwhile, the operation efficiency of the compressor 21 is improved.
The utility model discloses beneficial effect: 1. the modular heat pump dehumidification unit 20, the two-to-four-layer sludge conveying line 30 and the circulating air filtering mechanism 50 are installed in the whole drying box body 10, no heat bridge with external heat dissipation exists, heat loss is small, energy is saved, and loss is reduced.
2. The modular heat pump dehumidification unit 20, the two-to-four layers of sludge conveying lines 30 and the circulating air filtering mechanism 50 are installed in the whole drying box body 10, the box body is large in size, large in air capacity, fast in sludge moisture evaporation and diffusion, capable of increasing sludge moisture evaporation speed and capable of efficiently drying sludge.
3. Because the box is internal bulky, can hold more circulating fan to can select the axial fan that the static pressure is lower, thereby the mud receives the wind area more, and is more even, blows wind speed and pressure on the mud and is more mitigately, and the mud dust volume of production is little, need not clean every day.
4. Due to the circulating air expansion cavity 60, after the circulating air expansion cavities 60 come out from each layer, the wind speed is greatly reduced, granular sludge which is heavier than air suspension force in circulating air falls on the ground in the box and is not taken into the filtering mechanism, and the service life of the filtering net is prolonged.
5. Because the circulating air speed of the filter screen passing through the circulating air inlet of the evaporator 23 is low, suspended dust is not easy to break through the filter screen due to low speed, and therefore the dust enters the modular heat pump dehumidification unit 20, particularly, the dust quantity of the evaporator 23 is low, the dust speed is not high, the dust is not easy to adhere to fins of the evaporator 23, and the corrosion of the evaporator 23 is delayed.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A box-type sludge dryer is characterized by comprising a drying box body, a modular heat pump dehumidification unit, a sludge conveying line, a circulating fan unit and a circulating air filtering mechanism, wherein the heat pump dehumidification unit, the sludge conveying line and the circulating air filtering mechanism are arranged in the drying box body;
the heat pump dehumidification unit comprises a compressor, a condenser, a drying filter, a thermal expansion valve and an evaporator which are sequentially connected to the same loop through pipelines, a circulating fan unit is arranged above the sludge conveying line, an air inlet of the circulating fan unit takes air from the air outlet side of the condenser, an air outlet of the circulating fan unit blows wet sludge on the sludge conveying line, circulating air with sludge moisture enters a circulating air filtering mechanism through a circulating air expansion cavity to be filtered, and the filtered circulating air enters the heat pump dehumidification unit to be subjected to circulating dehydration heating.
2. A box-type sludge dryer according to claim 1, wherein each sludge conveying line comprises a plurality of sludge conveying belts, and a circulating fan set is correspondingly arranged above each sludge conveying belt.
3. A box sludge dryer according to claim 2, further comprising a slitter arranged above the sludge conveying line, wherein the slitter slits sludge and guides the slit sludge onto the top sludge conveying belt.
4. A box sludge dryer according to claim 3, wherein the slitter comprises a power mechanism, a sludge box, a double sludge pressing rotating shaft and a double sludge pressing roller, wherein the double sludge pressing rotating shaft and the double sludge pressing roller are arranged in the sludge box, the double sludge pressing rotating shaft is arranged below the double sludge pressing rotating shaft, the double sludge pressing rollers are staggered on the double sludge pressing rotating shaft, the power mechanism drives the double sludge pressing rotating shaft and the double sludge pressing roller to rotate, sludge falls onto the double sludge pressing roller below the double sludge pressing rotating shaft after being roughly cut by the sludge pressing roller on the double sludge pressing rotating shaft, and strip-shaped sludge is formed by fine cutting of the double sludge pressing roller and falls onto the top sludge conveying belt from the bottom of the sludge box.
5. A box-type sludge drying machine according to claim 4, wherein one side of each layer of the sludge conveyer belt is provided with a lower mud plate, and the lower mud plate enables sludge on the top layer of the sludge conveyer belt to be conveyed to the bottom layer of the sludge conveyer belt layer by layer and finally to be output from the sludge outlet.
6. A box sludge dryer according to claim 1, wherein the condenser comprises a first condenser and a second condenser in communication, the first condenser being disposed above the second condenser.
7. A box-type sludge dryer as claimed in claim 6, further comprising a heat extraction system, wherein the heat extraction system comprises a circulating water pump, a water pipe, a heat extraction water coil and a heat extraction fan, the circulating water pump, the water pipe and the heat extraction water coil form a closed structure, the heat extraction fan is arranged on the top of the box, and the heat extraction fan dissipates heat to the heat extraction water coil and the first condenser.
8. A box-type sludge dryer according to claim 1, wherein said circulating fan unit comprises a plurality of axial flow type circulating fans.
9. The box-type sludge drying machine of claim 1, wherein the air outlet direction of the circulating air expansion cavity is perpendicular to the air inlet direction of the circulating air filtering mechanism.
10. A box-type sludge dryer according to claim 1, further comprising a wind-partition plate group, wherein the circulating air expansion cavity is separated from the heat pump dehumidification unit by the wind-partition plate group, and the circulating air filtering mechanism is arranged on the wind-partition plate group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579881.5U CN210419689U (en) | 2019-04-25 | 2019-04-25 | Box sludge drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579881.5U CN210419689U (en) | 2019-04-25 | 2019-04-25 | Box sludge drying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210419689U true CN210419689U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920579881.5U Active CN210419689U (en) | 2019-04-25 | 2019-04-25 | Box sludge drying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210419689U (en) |
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2019
- 2019-04-25 CN CN201920579881.5U patent/CN210419689U/en active Active
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Effective date of registration: 20230516 Granted publication date: 20200428 |