CN209242901U - A kind of hollow blade type dryer and its drying system for sludge drying - Google Patents
A kind of hollow blade type dryer and its drying system for sludge drying Download PDFInfo
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- CN209242901U CN209242901U CN201821962921.6U CN201821962921U CN209242901U CN 209242901 U CN209242901 U CN 209242901U CN 201821962921 U CN201821962921 U CN 201821962921U CN 209242901 U CN209242901 U CN 209242901U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
Hollow hot axis, hollow blade, dry air entrance, humid air outlet, thermal medium entrance and sludge entrance are equipped with the utility model discloses a kind of hollow blade type dryer and its for the drying system of sludge drying, including hollow blade dryer.Sludge, which is passed through, to exchange heat with the thermal medium in hot axis and blade to reach suitable humidity, and moisture therein evaporates in hothouse generates damp-heat air.The damp-heat air, which enters heat pump heat distribution system heat exchange, becomes dry air, hothouse, which is returned to, through blower continues dry wet mud, refrigerant in heat pump system absorbs the heat of the damp-heat air through evaporator, it exchanges heat after compression with the thermal medium in hot axis and blade, to keep the higher temperature of thermal medium.The utility model mainly passes through whole waste heats of the steam tail gas generated during recycling drying sludge, and Lai Tigao drying process drying efficiency, the energy consumption for greatly reducing sludge drying have saved the consumption of the energy.
Description
Technical field
It is dry that the utility model belongs to water-containing sludge decrement, dry technical field more particularly to a kind of hollow paddle type
Machine and its drying system for sludge drying.
Background technique
Sludge of sewage treatment plant its water content after conventional treatment is still larger (moisture content about 80%), this will be unfavorable for dirt
The transport of mud and subsequent disposing task.For example agricultural various disposal options, landfill, burning, building materials are being taken to utilize in sludge
In the process, with the proviso that the moisture content of sludge has to meet related request.Sludge drying can realize the volume reduction of sludge, while
Keep transport and the subsequent processing of sludge more convenient.Sludge after desiccation because its moisture content is less, contained by pathogenic microorganism
It is less, therefore property is also relatively stable.Therefore sludge drying is that sludge realizes innoxious, minimizing, recycling treatment disposition
Key link is the premise that recycling sludge utilizes.
Traditional sludge drying process often directly utilizes non-renewable energy, or uses residual heat from boiler fume, or even directly adopt
Electrical drying, energy consume electric energy 45-90kW/t water, the optional equipment needed up to 4000~6000kJ/kg water
Complicated, cost of investment height.And in sludge drying process, excess heat is big, in line after in line or simple process to cause largely
Energy waste and pollution, the recycling of conventional waste heat can only combined process itself by tail gas or recycling condensing water heated material or cold Jie
Matter, waste heat recovery volume are few.For this purpose, avoid high energy consumption in the resource utilization and its desiccation of sludge, effective use waste heat also just at
For the important content of energy conservation and environmental protection technology, have great significance for the sustainable development of society.
Utility model content
The utility model proposes a kind of hollow blade type dryer and its for dirt according to problem of the existing technology
The drying system of mud desiccation, using efficient, high temperature heat pump power-saving technology using air as heat source, in conjunction with Paddle Drying room to reach
The sludge drying system for reducing energy consumption, avoiding pollution purpose.
Technical solution used by the utility model is as follows:
A kind of hollow blade type dryer, including casing and top cover, the casing internal level are equipped with 2 coaxial arrangements
Heat pipe, and 2 heat pipes rotate synchronously；Outer ring heat pipe is equipped with several hollow blades, and staggeredly pacifies between adjacent hollow blade
Dress；Described casing one end is equipped with hollow hot axis steam inlet, and the other end is equipped with hollow hot axis condensation-water drain, the hollow hot axis
Steam inlet is connected to hollow hot axis condensation-water drain by heat pipe, and one end of the top cover is equipped with wet mud import, in casing
The one end of bottom far from wet mud import is exported equipped with dewatered sludge；Enter in the bottom of shell of sludge input end equipped with damp-heat air
Mouthful, hot and humid air outlet is equipped on the top cover at sludge outlet end.
Inner ring inside heat pipe is center runner, is annular channel, each hollow blade between outer ring heat pipe and inner ring heat pipe
Internal cavities be connected to annular channel by condensate pipe, the center flow channels pass through the inside sky of steam pipe and hollow blade
Chamber connection.
Further, the side of the hollow blade is made of two pieces of fan-shaped steel plates, and closed sky is formed between fan-shaped steel plate
Chamber.
Further, rectangle stainless steel scraper plate is radially equipped on the hollow blade, for by the dirt of casing internal
Mud is swept, and avoids depositing.
Further, the hollow hot axis condensation-water drain end is provided with hollow hot axis not condensing exhaust valve.
Further, in the casing can it is adherent be equipped with steam jacket, the steam jacket both ends respectively with hollow hot axis
Steam inlet, hollow hot axis condensation-water drain connection, high-temperature steam is inputted along casing inner wall, improves the temperature of dryer inner
Degree.
A kind of drying system of sludge drying, including hollow blade type dryer, steam circulation channel and damp-heat air follow
Ring channel；The steam circulation channel includes condenser, and the both ends of the condenser are separately connected hollow hot axis steam inlet, sky
The hot axis condensation-water drain of the heart；Damp-heat air circulation canal includes sequentially connected deduster, evaporator and blower, the deduster
Connect hot and humid air outlet, the blower damp-heat air entrance.
Further, a circuit is connected by compressor between the condenser and evaporator, by evaporator discharge
Heat transfer medium enters condenser after compressor pressurization heating, and heat release provides height for hollow blade type dryer in condenser
Steam is warmed, the heat transfer medium after the completion of heat release flows into evaporator again and cools down as humid air of the refrigerant to discharge.
Further, two-stage can be set in the compressor.
The utility model has the beneficial effects that
The utility model can recycle whole waste heats of the steam tail gas generated during drying sludge, and closure blade is dry
Exhaust system in room forms circulation.The tail gas of hothouse outlet is led into blade hothouse, benefit after the evaporator of heat pump
It uses Lowlevel thermal energy as one of drying equipment heat source, and reduces air intlet humidity and promote to take more juicy out of in drying process,
Non-renewable energy is saved, the energy consumption for improving drying process drying efficiency, greatly reducing sludge drying；Reduce hothouse tail gas
Discharge amount, the equipment for reducing the secondary pollution of foul smell etc., and saving vent gas treatment；Hollow blade type dryer can have
Effect carries out drying and other treatment to sludge in it, and it is heating and drying to sludge progress to take full advantage of thermal energy.It is improved using R245fa working medium
The running temperature that heat pump provides, to accelerate mud drying process rate of drying, it is possible to use other high temperature refrigerants replacement；Utilize sky
Gas and hothouse tail gas are heat source, and combine heat pump energy-conserving technology, realize mud drying process energy conservation, low-carbon, reduce its operation
Cost, while eliminating the heating equipments such as boiler and its bring pollution.
Detailed description of the invention
Fig. 1 is hollow blade type dryer structural schematic diagram；
Fig. 2 is hollow blade structural side view；
Fig. 3 is a kind of drying system of sludge drying；
In figure, 1, hollow hot axis steam inlet, 2, belt pulley, 3, hot and humid air outlet, 4, top cover, 5, wet mud import,
6, hollow hot axis not condensing exhaust valve, 7, hollow hot axis condensation-water drain, 8, damp-heat air entrance, 9, steam jacket, 10, hollow
Blade, 101, rectangle stainless steel scraper plate, 102, triangular steel plate, 103, fan-shaped steel plate, 10a, steam pipe, 10b, condensate pipe,
11, heat pipe, 11a, set axis annular channel, 11b, set axis center runner, 12, dewatered sludge outlet, 13a, stage compressor, 13b, two
Grade compressor, 14, solenoid valve, 15, condenser, 16, evaporator, 17, deduster, 18, blower, 19, throttle valve.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used for explaining this
Utility model is not used to limit the utility model.
As shown in Figure 1, it includes casing and top cover 4 that the utility model, which is a kind of hollow blade type dryer, in the casing
Portion's level is equipped with the heat pipe 11 of 2 coaxial arrangements, and 2 heat pipes 11 are driven by belt pulley 2, and the heat pipe 11 of Internal and external cycle can be same
Step rotation.
The left end of casing is equipped with hollow hot axis steam inlet 1, which is connected to left end inner ring heat pipe, the right side of inner ring heat pipe
End seal is closed, and the right end of casing is equipped with hollow hot axis condensation-water drain 7, which is connected to the right end of outer ring heat pipe, outer ring heat pipe
Left end closing；Hollow hot 7 end of axis condensation-water drain is provided with hollow hot axis not condensing exhaust valve 6, being used for will be not liquefied
Steam discharge.In casing can it is adherent be equipped with steam jacket 9,9 both ends of steam jacket respectively with hollow hot axis steam inlet
1, hollow hot axis condensation-water drain 7 is connected to, and high-temperature steam is inputted along casing inner wall, improves the temperature of dryer inner.
As shown in Fig. 2, being fixed with several hollow blades 10 on the heat pipe of outer ring, and between adjacent hollow blade 10 staggeredly
Installation；Each hollow blade 10 is made of two pieces of fan-shaped steel plates, and the inner arc of fan-shaped steel plate is close to outer ring heat pipe, and two pieces of one end
Steel plate is connected to form sharp side, is closed between other end of two fan-shaped steel plates with short riser, top is formed after being closed again
Closed cavity is radially equipped with rectangle stainless steel scraper plate 101 on hollow blade 10, for by the sludge scraping of casing internal
It rises, avoids depositing；Inner ring inside heat pipe is center runner 11b, is annular channel 11a between outer ring heat pipe and inner ring heat pipe, often
The internal cavities of a hollow blade 10 are connected to by condensate pipe 10b with annular channel 11a, and center flow channels 11b passes through steam pipe
10a and 10 connects with the internal cavities of hollow blade；After high-temperature steam is passed through inner ring heat pipe from hollow hot axis steam inlet 1, by steaming
Steam pipe 10a enters 10 internal cavities of hollow blade, so that the heating of hollow blade 10 is in turn to sludge heat drying；Hollow blade 10
The steam or drop of inside cooling are after condensate pipe 10b enters annular channel 11a from hollow hot 7 row of axis condensation-water drain
Out.
It is equipped with sludge import 5 in the right end of top cover 4, wet sludge enters behind drying machine inner cavity from sludge import 5 by sky
After the rotation conveying of heart blade 10, pass through 12 discharge of dewatered sludge outlet of casing left end bottom.It is equipped in casing right end bottom wet
Hot air inlet 8, damp-heat air are discharged after entering drying machine inner cavity by the hot and humid air outlet 3 of 4 left end of top cover.
As shown in figure 3, devising a kind of sludge drying based on the hollow blade type dryer that the utility model is proposed
Drying system, including hollow blade type dryer, steam circulation channel and damp-heat air circulation canal；Steam circulation channel packet
Condenser 15 is included, the both ends of condenser 15 are separately connected hollow hot axis steam inlet 1, hollow hot axis condensation-water drain 7；Damp and hot sky
Gas circulation canal includes sequentially connected deduster 17, evaporator 16 and blower 18, and deduster 17 connects hot and humid air outlet 3,
18 damp-heat air entrance 8 of blower.
The output end of evaporator 16 passes through the input terminal of stage compressor 13a, split-compressor 13b connection condenser 15,
The output end of condenser 15 connects the input terminal of evaporator 16 using a throttle valve 19；Split-compressor 13b 1 electricity in parallel
Magnet valve 20 can use double-screw compressor, setting, change parameter be required according to dry, by the control conditions such as temperature remote sensing, root
Switch mono- Two-stage Compression according to corresponding drying condition and runs mould；The heat transfer medium that evaporator 16 is discharged rises by compressor pressurization
Enter condenser 15 after temperature, heat release provides high temperature hot steam for hollow blade type dryer in condenser 15, after the completion of heat release
Heat transfer medium flow into evaporator 16 again and cool down as humid air of the refrigerant to discharge.
In order to it is clearer explain the utility model the course of work, below in conjunction with the utility model the course of work make into
One step is explained:
Damp-heat air is after the discharge of hot and humid air outlet 3, after 17 dust removal process of deduster, is sent into evaporator 16, warp
Damp-heat air entrance 8 is sent to by blower 18 after 16 cool-down dehumidification of pervaporation device, completes dry air circulation；Condensed water is from hollow
Hot axis condensation-water drain 7 inputs condenser 15 after being discharged, and high-temperature steam is obtained after heat exchange is input to hollow hot axis steam
Mouth 1.
16 high temperature refrigerant of evaporator (R245fa) is compressed by two-stage compressor, is changed into high temperature and high pressure gas, is sent into
In the hot axis of condenser 15 and hollow blade hothouse after heat transfer medium heat exchange, the further decompression cooling of throttle valve 19 is flowed through, it is low
The refrigerant of warm low pressure is sent into evaporator 16 and exchanges heat with damp-heat air, promotes hot and humid gas dehydration cooling, is sent into two-stage again afterwards
Compressor, so completion refrigerant circulation.After absorbing heat in refrigerant, it is dry to be passed through hollow blade through condenser 15 for heat transfer medium
The inner ring heat pipe of machine heats wet mud as heat source, passes through condenser 15 again again after flowing out from hollow hot axis condensation-water drain 7
Heating so completes heat transfer medium circulation in hollow blade dryer to maintain wet mud temperature.Wet mud enters groomed oar
Leaf formula drying machine, with the stirring of hollow blade 10, dry air flows through wet mud, and the water content of sludge gradually reduces and to dry dirt
Mud outlet side transports, and cold dry air is changed into damp-heat air.By damp-heat air by deduster 17, to avoid to without dedusting
High temperature and humidity air carry out cool-down dehumidification, give heat pump system compressor bring additional energy, by evaporator 16 handle after,
Damp-heat air is changed into cold dry air, is sent into hollow blade dryer inner cavity by blower 18, continues to take out of sludge water content completion and follows
Ring.Then sludge in drying machine is delivered heat to, damp-heat air is then generated, persistently takes away moisture, wet mud gradually desiccation is realized
80% wet mud is converted to 20%
Above embodiments are merely to illustrate the design philosophy and feature of the utility model, in the art its object is to make
Technical staff can understand the content of the utility model and implement accordingly, and the protection scope of the utility model is not limited to above-mentioned implementation
Example.So it is all according to equivalent variations or modification made by the revealed principle of the utility model, mentality of designing, it is practical at this
Within novel protection scope.
Claims (9)
1. a kind of hollow blade type dryer, which is characterized in that including casing and top cover (4), the casing internal level is equipped with 2
The heat pipe of root coaxial arrangement, and 2 heat pipes rotate synchronously；Outer ring heat pipe is equipped with several hollow blades (10), and adjacent sky
Heart blade is staggered installation of between (10)；Described casing one end is equipped with hollow hot axis steam inlet (1), and the other end is equipped with hollow hot axis
Condensation-water drain (7), the hollow hot axis steam inlet (1) are connected to hollow hot axis condensation-water drain (7) by heat pipe；It is described
One end of top cover (4) is equipped with wet mud import (5), goes out far from one end of wet mud import (5) equipped with dewatered sludge in bottom of shell
Mouth (12)；Damp-heat air entrance (8) are equipped in the bottom of shell of sludge input end, are equipped on the top cover (4) at sludge outlet end
Hot and humid air outlet (3).
2. a kind of hollow blade type dryer according to claim 1, which is characterized in that flowed centered on inner ring inside heat pipe
Road (11b) is annular channel (11a) that the internal cavities of each hollow blade (10) pass through between outer ring heat pipe and inner ring heat pipe
Condensate pipe (10b) is connected to annular channel (11a), and the center flow channels (11b) pass through steam pipe (10a) and hollow blade
(10) connects with the internal cavities.
3. a kind of hollow blade type dryer according to claim 1, which is characterized in that the side of the hollow blade (10)
Face is made of two pieces of fan-shaped steel plates, and closed cavity is formed between fan-shaped steel plate.
4. a kind of hollow blade type dryer according to claim 3, which is characterized in that edge on the hollow blade (10)
Radially outward it is equipped with rectangle stainless steel scraper plate (101).
5. a kind of hollow blade type dryer according to claim 1, which is characterized in that the hollow hot axis condensed water goes out
Mouth (7) end is provided with hollow hot axis not condensing exhaust valve (6).
6. a kind of hollow blade type dryer according to claim 1, which is characterized in that adherent can be set in the casing
Have steam jacket (9), steam jacket (9) both ends respectively with hollow hot axis steam inlet (1), hollow hot axis condensation-water drain
(7) it is connected to.
7. a kind of drying system based on sludge drying described in claim 1, which is characterized in that dry including hollow paddle type
Machine, steam circulation channel and damp-heat air circulation canal；The steam circulation channel includes condenser (15), the condenser
(15) both ends are separately connected hollow hot axis steam inlet (1), hollow hot axis condensation-water drain (7)；Damp-heat air circulation canal
Including sequentially connected deduster (17), evaporator (16) and blower (18), the deduster (17) connects hot and humid air outlet
(3), blower (18) the damp-heat air entrance (8).
8. a kind of drying system of sludge drying according to claim 7, which is characterized in that the condenser (15) and steaming
A circuit is connected by compressor between hair device (16), the heat transfer medium of evaporator (16) discharge is pressurizeed by compressor
Enter condenser (15) after heating, provides high temperature hot steam, heat release in condenser (15) interior heat release for hollow blade type dryer
Heat transfer medium after the completion flows into evaporator (16) again and cools down as humid air of the refrigerant to discharge.
9. a kind of drying system of sludge drying according to claim 7, which is characterized in that the compressor setting two
Grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821962921.6U CN209242901U (en) | 2018-11-27 | 2018-11-27 | A kind of hollow blade type dryer and its drying system for sludge drying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821962921.6U CN209242901U (en) | 2018-11-27 | 2018-11-27 | A kind of hollow blade type dryer and its drying system for sludge drying |
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| Publication Number | Publication Date |
|---|---|
| CN209242901U true CN209242901U (en) | 2019-08-13 |
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|---|---|---|---|
| CN201821962921.6U Expired - Fee Related CN209242901U (en) | 2018-11-27 | 2018-11-27 | A kind of hollow blade type dryer and its drying system for sludge drying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368976A (en) * | 2018-11-27 | 2019-02-22 | 江苏大学 | A kind of hollow blade type dryer and its drying system for sludge drying |
-
2018
- 2018-11-27 CN CN201821962921.6U patent/CN209242901U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368976A (en) * | 2018-11-27 | 2019-02-22 | 江苏大学 | A kind of hollow blade type dryer and its drying system for sludge drying |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190813 Termination date: 20201127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |