CN101830624A - System and process for drying sludge blades - Google Patents
System and process for drying sludge blades Download PDFInfo
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- CN101830624A CN101830624A CN 201010195450 CN201010195450A CN101830624A CN 101830624 A CN101830624 A CN 101830624A CN 201010195450 CN201010195450 CN 201010195450 CN 201010195450 A CN201010195450 A CN 201010195450A CN 101830624 A CN101830624 A CN 101830624A
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Abstract
The invention relates to a system and a process for drying sludge blades. The system comprises a sludge storage bin, wherein the sludge storage bin is connected with a feed port of a blade dryer; a discharge port of the blade dryer is connected with a storage tank I; after tail gas in the blade dryer passes through a dedusting device, one path of the tail gas is sent to a feedwater heating system of a boiler; and the other path of the tail gas is sent to a heat exchanger to be heated; and the heat exchanger is connected with a heat source; the inner wall of the blade dryer is provided with a jacket; two sets of hollow heating shafts with reverse rotation are arranged inside the jacket; a plurality of radiating discs are distributed on the heating shaft; and overheated steam or hot oil are sent to the heating shafts and the jacket. The system has the advantages of high safety, high thermal efficiency, low energy consumption and the like.
Description
Technical field
The present invention relates to a kind of drying plant technical field, specifically be a kind of with superheated vapour as taking the sludge blades dehumidification system and the technology thereof of moisture, be applicable to the drying of high-moisture materials such as mud.
Background technology
Mud is the product in the sewage treatment process, contains a large amount of organism, heavy metal and germ etc., if not in addition the processing meeting environment is caused severe contamination.After mud was handled through concentrated and dewatering process, its water ratio was usually still more than 70%.Mud deep dehydration to be carried out, drying treatment need be carried out.Blade dryer is a kind of novel drying plant, and the drying of material is to carry out the thermal conduction indirect heating removing moisture by the thermal source in hollow blade and the wall chuck in this equipment, and takes away wet the branch by taking humid gas, is a kind of energy-saving drying plant.
Existing blade dryer uses air as taking humid gas usually, takes the water vapor of vaporizing in the drying sludge out of drying machine, and there is following shortcoming in these Technologies: 1, contain the oxygen of higher concentration in the air, potential safety hazards such as existence is caught fire, blast; 2, a large amount of tail gas are taken away the part heat and are caused drying machine thermo-efficiency to descend.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of safety, thermo-efficiency height, sludge blades dehumidification system and technology thereof that energy consumption is low are provided.
For achieving the above object, the present invention adopts following technical proposals:
A kind of sludge blades dehumidification system, it comprises the mud storage bin, and the mud storage bin is connected with the blade dryer opening for feed, and the blade dryer discharge port is connected with the hold-up vessel I; The tail gas of blade dryer one the tunnel is sent into the oiler feed heating system behind cleaning apparatus, the interchanger heating is sent on another road, and interchanger is connected with thermal source; The inwall of described blade dryer is provided with chuck, and portion is the heated mandrel of the hollow of one group or two groups reverse rotation within it, several heat radiation disks of on heated mandrel, arranging, and superheated vapour or deep fat are sent into heated mandrel and mutual chuck.
Described residual neat recovering system comprises condenser, the condenser inlet mouth is connected with cleaning apparatus, condenser heats oiler feed, the condenser air outlet is connected with drying chamber, the drying chamber discharge port is connected with incinerator, the condenser water outlet is connected with drain trap, and the drying chamber water outlet also is connected with drain trap simultaneously, and drain trap then is connected with hydrophobic pipe network with pollution discharge pond respectively.
Described cleaning apparatus is a gas-solid separating device, and it is connected with interchanger with incineration system respectively by blower fan, and the discharge end of dust-precipitator is connected with blade dryer or directly enters transfer roller.
The heated mandrel of described every group of reverse rotation is twin shaft, three or four.
A kind of drying process of sludge blades dehumidification system, its process is:
Water vapor or thermal oil feed in heated mandrel and the chuck, and dry required heat is provided; Water vapor is discharged drying machine discharging blade dryer through forming water of condensation after the drying process after thermal oil is condensed; After needing the wet mud material of exsiccant to enter drying machine, rotation along with heated mandrel, stirred, cut, promote, offer by the heat radiation disk, utilize convection current, conduction, radiating heat exchange mode that material is carried out drying, material moves to discharge port from the opening for feed of drying machine; The moisture that drying removes carries by taking humid gas, under the effect of induced draft fan, discharge outside the drying machine, to take the material dust separation that humid gas carries through dust-precipitator gets off, enter in the blade dryer, the sludge-drying in drying machine is discharged drying machine or is sent into the transfer roller of postorder from discharge port; The cleaning of coming out from dust-precipitator contains a humid gas part and enters to be heated the interchanger become superheated vapour wet the branch, enters blade dryer once more and recycles as taking humid gas; Unnecessary cleaning contains humid gas and enters heating cooling water waterborne or cooling air intake in the condenser, and the sensible heat and the latent heat that system are evaporated water vapor carry out waste heat recovery; Contain humid gas and go into drain trap behind condenser, water of condensation enters hydrophobic pipe network and dirty slag is entered pollution discharge pond afterwards; Gas behind the condenser enters drying chamber, sends the separation of the moisture in the gas and with it into drain trap; Last remaining non-condensable gas and air are reached the purpose of taste removal by induced draft fan positive delivery to incinerator.
Blade dryer is as the nucleus equipment of this dehumidification system among the present invention, its main body is the heated mandrel (every group is twin shaft) of one group or two groups reverse rotation, the a series of heat radiation disk of arranging on the heated mandrel is furnished with hollow chuck on the inner-wall surface of blade dryer.In the post-decompression water vapor of reducing valve (or thermal oil) feeds heated mandrel and chuck, provide dry required heat.Superheated vapour enters condensate recovery system discharging drying machine through forming water of condensation after the drying process, enters heat-conducting oil furnace after thermal oil is cooled and reheats.After needing the wet mud material of exsiccant to enter drying machine, rotation along with axle, stirred, cut, promote, offer by the heat radiation disk, utilize multiple heat exchange modes such as convection current, conduction, radiation that material is carried out drying, material moves to discharge port from the opening for feed of drying machine.The moisture that drying removes carries by taking humid gas, under the effect of induced draft fan, discharge outside the drying machine, to take the material dust separation that humid gas carries through dust-precipitator gets off, enter in the blade dryer through lock wind discharge valve, the sludge-drying in drying machine is discharged drying machine or is sent into the transfer roller of postorder from discharge port.The cleaning of coming out from dust-precipitator contains a humid gas part and enters to be heated the interchanger become superheated vapour wet the branch, enters blade dryer once more and recycles as taking humid gas.Unnecessary cleaning contains humid gas and enters heating cooling water waterborne or cooling air intake in the condenser, and the sensible heat and the latent heat that system are evaporated water vapor carry out waste heat recovery.
This scheme system has following advantage:
1, with superheated vapour as taking the safe of humid gas.Oxygen level in the blade dehumidification system is lower than 1%, do not have catch fire, potential safety hazard such as blast.
2, thermo-efficiency height, the energy consumption of system are low.Steam system has realized the whole recovery from house steward's steam condensate, has realized heating cooling water waterborne or cooling air intake simultaneously again, and the sensible heat and the latent heat overwhelming majority that system are evaporated water vapor reclaim.The actual consumption of total system is very low.
3, to drain into the tolerance of incinerator few and moisture few in system, minimum to the influence of incinerator.
4, the public resource and power plant, the factory that make full use of power plant, factory of system forms unified integral body easily.Wherein, steam is from house steward, the water of condensation back boiler.Cooling circulating water is sent boiler again back to from the feedwater of boiler after being heated.A small amount of non-condensable gas of system is sent into boiler systems by blower fan and is burned taste removal.
5, system moves under suction function, and all will there be the negative pressure air suction inlet in the emptying point of sludge bin and system, sends into boiler and burns, and the stink of environment is up to standard.
Description of drawings
Fig. 1 is the schema of this sludge blades dehumidification system;
Wherein, 1. mud storage bin, 2. blade dryer, 3. hold-up vessel I or transfer roller, 4. dust-precipitator, 5. blower fan, 6. interchanger, 7. hold-up vessel II, 8. condenser, 9. drying chamber, 10. incinerator, 11. drain traps, 12. pollution discharge pond, 13. hydrophobic pipe networks.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
A kind of sludge blades dehumidification system, it comprises mud storage bin 1, and mud storage bin 1 is connected with blade dryer 2 opening for feeds, and blade dryer 2 discharge ports are connected with hold-up vessel I 3; The tail gas of blade dryer 2 one the tunnel is sent into incineration system behind cleaning apparatus, interchanger 6 heating are sent on another road, and interchanger 6 is connected with thermal source; The inwall of described blade dryer 2 is provided with chuck, and portion is the heated mandrel of the hollow of two groups of reverse rotations within it, several heat radiation disks of on heated mandrel, arranging, and superheated vapour or deep fat are sent into heated mandrel and chuck.
Described incineration system comprises condenser 8, condenser 8 inlet mouths are connected with cleaning apparatus, water or cooling air intake heat in 8 pairs of coolings of condenser, condenser 8 air outlets are connected with drying chamber 9, drying chamber 9 discharge ports are connected with incinerator 10, drying chamber 9 water outlets and condenser 8 water outlets all are connected with drain trap 11, and 11 of drain traps are connected with hydrophobic pipe network 13 with pollution discharge pond 12 respectively.
Described cleaning apparatus is a dust-precipitator 4, and it is connected with interchanger 6 with condenser 8 respectively by blower fan 5, and the discharge end of dust-precipitator 4 is connected with the transfer roller of blade dryer 2 or postorder.
The heated mandrel of described every group of reverse rotation is single shaft, twin shaft, three or four.
Workflow of the present invention is:
The mud flow process: the feed product by last workshop section's pressure filter or other solid-liquid separating equipments come, by transport trolley mud is transported in the mud storage bin 1, sludge pump will wet the mud pressurization, quantitatively be delivered into blade dryer 2; In blade dryer 2, drying machine inwall wall, heat radiation disk contact with wet stock, and material is heated; The disk stirring at low speed of dispelling the heat simultaneously mud makes mud fully contact the purpose that reaches conveying simultaneously with the disk hot face.After mud is heated, moisture evaporation, the normal pressure overheat steam of being crossed Sludge Surface by high speed flow carries goes out the air outlet, and enters dust-precipitator 4.At dust-precipitator 4 places, a small amount of mud dust that is mingled with in the steam is collected and returns to blade dryer 2 again.The mud self-desiccation machine discharge port that reaches the mummification requirement is at last discharged or is sent in the transfer roller of postorder.
Take the humid gas flow process: it is superheated vapour that native system is taken the humid gas main body, and a small amount of non-condensable gas in the part mud, and small amount of leakage is gone into the air of system etc.In the blade dryer 2, moisture evaporated enters with a small amount of non-condensable gas in steam-like and the mud and takes in the humid gas, under the effect of blower fan 5, enter dust-precipitator 4, enter interchanger 6 in the pressurization of blower fan 5 air outlets, finish at interchanger 6 places and further to heat taking humid gas, make and take humid gas and enter in the blade dryer 2, once more circulation with hot excessively; Part is taken humid gas and discharge the recycle system under the induced draft fan effect, and the steam of taking in the moisture of going out system at condenser 8 places is condensed, and enters drain trap 11, and water of condensation enters hydrophobic pipe network 13 and dirty slag is entered pollution discharge pond 12 afterwards; Gas behind the condenser 8 enters drying chamber 9, sends the separation of the moisture in the gas and with it into drain trap 11; Last remaining a small amount of non-condensable gas and air are reached the purpose of taste removal to incinerator 10 by the induced draft fan positive delivery.
Water vapor thermal source flow process: superheated vapour enters the inwall chuck and the heat radiation disk of blade dryer 2, for drying machine provides dry power.Enter hold-up vessel II 7 afterwards.Assurance is taken humid gas and is circulated between drying machine, fly-ash separator, recirculation blower, in time the mud moisture evaporated is brought into and takes in the humid gas.
Thermal oil thermal source flow process: thermal oil enters the inwall chuck and the heat radiation disk of blade dryer 2, for drying machine provides dry power.Enter hold-up vessel II 7 afterwards.Assurance is taken humid gas and is circulated between drying machine, fly-ash separator, recirculation blower, in time the mud moisture evaporated is brought into and takes in the humid gas.
Current flow process in the cooling: the heat recuperation of taking humid gas that will enter condenser 8.And steam cooling that will be wherein is to liquid, significantly reduces induced draft fan and is delivered to the gas volume that burns in the incinerator and moisture wherein.
Cooling air intake flow process: the heat recuperation of taking humid gas that will enter condenser 8.And the water of condensation of inciting somebody to action wherein imports water transfer pipe network.
Claims (6)
1. sludge blades dehumidification system, it is characterized in that: it comprises the mud storage bin, and the mud storage bin is connected with the blade dryer opening for feed, and the blade dryer discharge port is connected with the hold-up vessel I; The tail gas of blade dryer one the tunnel is sent into residual neat recovering system behind cleaning apparatus, the interchanger heating is sent on another road, and interchanger is connected with thermal source; The inwall of described blade dryer is provided with chuck, and portion is the heated mandrel of the hollow of two groups of reverse rotations within it, several heat radiation disks of on heated mandrel, arranging, and superheated vapour or deep fat are sent into heated mandrel and chuck.
2. sludge blades dehumidification system as claimed in claim 1, it is characterized in that: described residual neat recovering system comprises condenser, the condenser inlet mouth is connected with cleaning apparatus, condenser heats water coolant or cooling air intake, the condenser air outlet is connected with drying chamber, and the drying chamber discharge port is connected with incinerator, and the condenser water outlet is connected with drain trap, the drying chamber water outlet also is connected with drain trap simultaneously, and drain trap then is connected with hydrophobic pipe network with pollution discharge pond respectively.
3. sludge blades dehumidification system as claimed in claim 1 or 2 is characterized in that: described cleaning apparatus is a gas-solid separating device, and the solid particulate in the gas is separated.
4. dust-precipitator is connected with interchanger with incineration system respectively by blower fan, and its discharge end is connected or directly enters the transfer roller of postorder with blade dryer.
5. sludge blades dehumidification system as claimed in claim 1 is characterized in that: the heated mandrel of described every group of mutual reverse rotation is twin shaft, three or four.
6. the drying process of the described sludge blades dehumidification system of claim 1, it is characterized in that: its process is:
Water vapor or thermal oil feed in heated mandrel and the chuck, and dry required heat is provided; Water vapor is discharged drying machine discharging blade dryer through forming water of condensation after the drying process after thermal oil is cooled; After needing the wet mud material of exsiccant to enter drying machine, rotation along with heated mandrel, stirred, cut, promote, offer by the heat radiation disk, utilize conduction, convection current, radiating heat exchange mode that material is carried out drying, material moves to discharge port from the opening for feed of drying machine; The moisture that drying removes carries by taking humid gas, under the effect of induced draft fan, discharge outside the drying machine, to take the material dust separation that humid gas carries through dust-precipitator gets off, enter in the blade dryer, the sludge-drying in drying machine is discharged drying machine or is sent into the postorder transfer roller from discharge port; The cleaning of coming out from dust-precipitator contains a humid gas part and enters to be heated the interchanger become superheated vapour wet the branch, enters blade dryer once more and recycles as taking humid gas; Unnecessary cleaning contains humid gas and enters the last water (cooling air intake) of heating cooling in the condenser, and the sensible heat and the latent heat that system are evaporated water vapor carry out waste heat recovery; Go into drain trap behind the wet lease making condenser, water of condensation enters hydrophobic pipe network and dirty slag is entered pollution discharge pond afterwards; Gas behind the condenser enters drying chamber, sends the separation of the moisture in the gas and with it into drain trap; Last remaining non-condensable gas and air are reached the purpose of taste removal by induced draft fan positive delivery to incinerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195450 CN101830624B (en) | 2010-06-09 | 2010-06-09 | System and process for drying sludge blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195450 CN101830624B (en) | 2010-06-09 | 2010-06-09 | System and process for drying sludge blades |
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| Publication Number | Publication Date |
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| CN101830624A true CN101830624A (en) | 2010-09-15 |
| CN101830624B CN101830624B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010195450 Active CN101830624B (en) | 2010-06-09 | 2010-06-09 | System and process for drying sludge blades |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311216A (en) * | 2011-08-23 | 2012-01-11 | 郭少仪 | Separated thermal cycle sludge dry method and device thereof |
| CN103224312A (en) * | 2013-05-08 | 2013-07-31 | 上海市离心机械研究所有限公司 | Drilling sludge drying treatment process and special dewatering and drying system |
| CN103288314A (en) * | 2012-03-02 | 2013-09-11 | 台湾洁净能源科技股份有限公司 | Substance heat treatment separation and energy recovery system |
| CN106904812A (en) * | 2017-03-27 | 2017-06-30 | 张秀青 | It is a kind of to dry the process that oil-sand cures thin mine tailing |
| CN108266967A (en) * | 2016-12-31 | 2018-07-10 | 天津泓泉混凝土搅拌有限公司 | A kind of wet sand drying and exhaust treatment system |
| CN108362118A (en) * | 2018-02-01 | 2018-08-03 | 同济大学 | A kind of drying equipment and its drying means of aluminium polychloride class series salt |
| CN108640473A (en) * | 2018-07-04 | 2018-10-12 | 福建省东南电化股份有限公司 | A kind of sludge dry system in wastewater treatment process |
| CN110822971A (en) * | 2019-10-24 | 2020-02-21 | 中科富龙(唐山)节能环保科技有限公司 | Sludge drying exhaust steam waste heat recovery device and recovery method |
| CN111138067A (en) * | 2019-12-30 | 2020-05-12 | 江苏绿威环保科技有限公司 | Dryer waste heat recovery system |
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| CN1978349A (en) * | 2005-12-05 | 2007-06-13 | 平国明 | High-environmental-protection low-cost sludge-drying equipment and method |
| CN101216244A (en) * | 2008-01-09 | 2008-07-09 | 浙江大学 | Spiral and rotary type sludge drying shaping apparatus |
| CN201293534Y (en) * | 2008-08-26 | 2009-08-19 | 王福才 | Triaxial and three-box hollow blade sludge drier |
| CN201694934U (en) * | 2010-06-09 | 2011-01-05 | 山东天力干燥设备有限公司 | Sludge blade drying system |
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2010
- 2010-06-09 CN CN 201010195450 patent/CN101830624B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1978349A (en) * | 2005-12-05 | 2007-06-13 | 平国明 | High-environmental-protection low-cost sludge-drying equipment and method |
| CN101216244A (en) * | 2008-01-09 | 2008-07-09 | 浙江大学 | Spiral and rotary type sludge drying shaping apparatus |
| CN201293534Y (en) * | 2008-08-26 | 2009-08-19 | 王福才 | Triaxial and three-box hollow blade sludge drier |
| CN201694934U (en) * | 2010-06-09 | 2011-01-05 | 山东天力干燥设备有限公司 | Sludge blade drying system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311216A (en) * | 2011-08-23 | 2012-01-11 | 郭少仪 | Separated thermal cycle sludge dry method and device thereof |
| CN102311216B (en) * | 2011-08-23 | 2012-09-05 | 郭少仪 | Separated thermal cycle sludge dry method and device thereof |
| CN103288314A (en) * | 2012-03-02 | 2013-09-11 | 台湾洁净能源科技股份有限公司 | Substance heat treatment separation and energy recovery system |
| CN103224312A (en) * | 2013-05-08 | 2013-07-31 | 上海市离心机械研究所有限公司 | Drilling sludge drying treatment process and special dewatering and drying system |
| CN108266967A (en) * | 2016-12-31 | 2018-07-10 | 天津泓泉混凝土搅拌有限公司 | A kind of wet sand drying and exhaust treatment system |
| CN106904812A (en) * | 2017-03-27 | 2017-06-30 | 张秀青 | It is a kind of to dry the process that oil-sand cures thin mine tailing |
| CN106904812B (en) * | 2017-03-27 | 2023-04-18 | 张秀青 | Process method for drying oil sand mature fine tailings |
| CN108362118A (en) * | 2018-02-01 | 2018-08-03 | 同济大学 | A kind of drying equipment and its drying means of aluminium polychloride class series salt |
| CN108640473A (en) * | 2018-07-04 | 2018-10-12 | 福建省东南电化股份有限公司 | A kind of sludge dry system in wastewater treatment process |
| CN110822971A (en) * | 2019-10-24 | 2020-02-21 | 中科富龙(唐山)节能环保科技有限公司 | Sludge drying exhaust steam waste heat recovery device and recovery method |
| CN111138067A (en) * | 2019-12-30 | 2020-05-12 | 江苏绿威环保科技有限公司 | Dryer waste heat recovery system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101830624B (en) | 2011-09-28 |
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