CN105509459A - Heat energy utilizing system of hollow blade drying machine - Google Patents
Heat energy utilizing system of hollow blade drying machine Download PDFInfo
- Publication number
- CN105509459A CN105509459A CN201610022576.7A CN201610022576A CN105509459A CN 105509459 A CN105509459 A CN 105509459A CN 201610022576 A CN201610022576 A CN 201610022576A CN 105509459 A CN105509459 A CN 105509459A
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- Prior art keywords
- drying machine
- oil
- heat energy
- outlet
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
- F26B11/0486—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements being held stationary, e.g. internal scraper blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of drying equipment, in particular to a heat energy utilizing system of a hollow blade drying machine. The heat energy utilizing system comprises the drying machine, and the drying machine comprises a shell and a blade shaft. A feed opening and a first discharge opening are formed in the shell, one end of the blade shaft is connected with a rotary connector, and a heat conducting oil inlet and a heat conducting oil outlet are formed in the rotary connector. The heat energy utilizing system of the drying machine further comprises a wet sludge preheater, a water foam dust collector, a condenser and a steam-liquid separator which are connected in sequence, and a wet sludge inlet, a material outlet, a steam inlet and a tail gas outlet are formed in the wet sludge preheater. A secondary steam outlet is further formed in the shell of the drying machine, the secondary steam outlet of the drying machine is connected with the steam inlet of the wet sludge preheater, the material outlet of the wet sludge preheater is connected with the feed opening of the drying machine, and the upper end of the steam-liquid separator is connected with a clean tail gas exhaust pipe. The heat energy utilizing system is environmentally friendly, and energy is saved.
Description
Technical field
The present invention relates to drying equipment technical field, particularly relate to the heat energy utilization of drying machine.
Background technology
The vent gas treatment mode majority of current hollow blade drying adopts water dust scrubber, mainly there is following problem: 1 and in vent gas treatment process, and need two aspects solving dust and cooling, water consumption is larger, and the secondary pollution of generation also will process again.
2, in the tail gas of water dust scrubber, contain some condensable gas and a part of incoagulable gas, this part gas can cause secondary pollution to air.
3, tail gas is relatively clean after Shui Droplets dedusting, but smell can not be eliminated, therefore under normal circumstances can supporting charcoal trap, but because the temperature of tail gas is higher, and humidity is larger, tail gas condensation can produce condensed water in pipe conveying procedure, condensed water in such tail gas can be more, a large amount of condensed waters can suction by the very fast space structure by active carbon, when having completely lost the function of absorption after the absorption of active carbon hole system, therefore the effect of drying machine tail gas outlet device active carbon filter is unsatisfactory.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of environmental protection, energy-conservation hollow blade dryer heat energy utilization system are provided.
The object of the present invention is achieved like this: a kind of hollow blade dryer heat energy utilization system, comprise drying machine, drying machine comprises frame, frame supports housing and the paddle shaft of lateral arrangement, housing is provided with charging aperture and the first discharging opening, and paddle shaft device is in housing, one end connecting power device, the other end of paddle shaft connect swivel joint, swivel joint are arranged heat conductive oil inlet and conduction oil outlet, described drying machine heat energy utilization system also comprises wet mud preheater, foam dust collector, condenser, vapour liquid separator, wet mud preheater is provided with wet mud import, material outlet, steam inlet, offgas outlet, the housing of described drying machine is also provided with indirect steam outlet, the indirect steam outlet of drying machine is connected with the steam inlet of wet mud preheater, the wet material outlet of mud preheater is connected with the charging aperture of drying machine, the offgas outlet of wet mud preheater connects air-introduced machine, the air outlet of air-introduced machine connects foam dust collector, the offgas outlet of foam dust collector connects the inlet exhaust gas of condenser, the offgas outlet of condenser connects the inlet exhaust gas of vapour liquid separator, the upper end of vapour liquid separator connects clean tail gas discharging pipe.
The present invention is connected by above, has following characteristics:
1. utilize the secondary steam for preheating raw material that hollow blade dryer is discharged, both heated raw material saving heat energy, also reduce the temperature of indirect steam simultaneously, save the cooling water needed for cooling.
2. washed drying machine tail gas by cyclone dust collectors, dust in removing tail gas, making it can not fouling in preheater.
3. by Shui Droplets deduster, drying machine tail gas is washed, dust in removing tail gas.
4., owing to having the acidic materials such as hydrogen sulfide in tail gas, add alkali lye (NaOH) in the spray liquid of Shui Droplets deduster, by the oxious component in the further cleaning of off-gas of acid-base neutralization.
5. take the thinking of whole system closed cycle, in tail gas Shui Droplets deduster, after cooling, volume reduces greatly, also can solve the emission problem of waste gas while of adopting closed cycle not only can meet tolerance.
6. in the waste water of Shui Droplets deduster Inner eycle, the concentration of mud can constantly increase, by regularly sewage being sent to sludge dewatering equipment, thus the normal operation of Bao Chi Shui Droplets deduster.
7. whole drying sludge dust pelletizing system totally enclosed type production run, without mud, without sewage, without waste gas, thus realizes environmental protection operation.
As the improvement of invention, the casing of described drying machine is also provided with clean tail gas air inlet, the clean tail gas discharging pipe of described vapour liquid separator is connected with the clean tail gas air inlet of the casing of drying machine, and the clean tail gas that vapor-liquid separation obtains is back in drying machine and re-uses.
As a further improvement on the present invention, the casing of described drying machine is also provided with air inlet port.In the design of drying process, can make to circulate acceleration by passing into certain air in drying machine, accelerating the discharge of the water vapour that evaporation produces.
As the further improvement of invention, the indirect steam outlet of described drying machine is by being connected with the steam inlet of wet mud preheater after cyclone separator.
As a further improvement on the present invention, the housing of described drying machine is also provided with the second discharging opening, the second discharging opening is connected with charging aperture.A part of material in drying machine from the first discharge hole for discharge, a part reenter in drying machine through conveying worm, and the material of humidity again mix reduce material viscosity after realize cyclic drying.
As a further improvement on the present invention, described drying machine heat energy utilization system also comprises hotline heater and Heat-transfer Oil Pump, hotline heater is arranged gas approach, oil-out, oil-in, the gas approach of hotline heater connects flue gas air blast, the inlet end of flue gas air blast is connected with boiler emission flue gas by pipeline, the oil-out of hotline heater connects the oil-in of Heat-transfer Oil Pump, the oil-out of Heat-transfer Oil Pump is connected with the heat conductive oil inlet on swivel joint, and the conduction oil outlet on swivel joint is connected with the oil-in of hotline heater.Make full use of the waste heat of steam power plant's discharge flue gas, flue gas waste heat after hotline heater, oil pump enter drying machine process is fully utilized, and the temperature making steam power plant discharge flue gas reduces, reach energy-conservation, reduce discharging, the object of environmental protection.
As a further improvement on the present invention, described drying machine heat energy utilization system also comprises surge tank, described hotline heater also arranges buffering oil-in is gentle goes out hydraulic fluid port, the oil-in of surge tank is connected with the buffering oil-out of hotline heater, and the oil-out of surge tank is connected with the buffering oil-in of hotline heater.After hotline heater runs, a part of conduction oil in hotline heater can enter in surge tank, prevents from, because the volumetric expansion of conduction oil causes the damage of hotline heater in hotline heater, guaranteeing safety.
During work, 1) boiler waste hot gas and heat-conducting medium are introduced hotline heater by flue gas air blast and are carried out heat exchange, heat heat-conducting medium;
2) heat-conducting medium through heat exchange is squeezed in drying machine through Heat-transfer Oil Pump, the indirect steam that drying machine produces enters wet mud preheater by steam (vapor) outlet after cyclone separator dedusting, preheat the material in wet mud preheater, material enters drying machine and dries after preheating;
3) the air inlet port of drying machine passes into displacement 1-2 air doubly, can make cyclical acceleration, accelerates the discharge of water vapour;
4) dried material reenters in drying machine by connecting charging aperture to conveying worm after the second discharging opening of drying machine, and the material of humidity again mixes and realizes cyclic drying;
5) tail gas of wet mud preheater is taken out through air-introduced machine and is introduced into foam dust collector, and foam dust collector carries out depickling process by the alkali lye (NaOH) of spray 3.6% ~ 10% to tail gas, reduces exhaust temperature simultaneously;
6) tail gas of foam dust collector carries out gas-liquid separation by entering gas-liquid separator after condenser condenses again, the clean tail gas obtained after gas-liquid separation enters air by charcoal trap, or the clean tail gas obtained after gas-liquid separation is back to re-using in drying machine, avoids odor contamination.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, hollow blade dryer heat energy utilization system, comprise drying machine 1, drying machine 1 comprises frame 12, frame 12 supports housing 10 and the paddle shaft 9 of lateral arrangement, be provided with air inlet port 27, clean tail gas air inlet 26, indirect steam outlet 25, charging aperture 24, first discharging opening 28 and the second discharging opening 13, second discharging opening 13 to be on the housing 10 connected with charging aperture 24 by returning charge conveying worm.Paddle shaft 9 is set in housing 10, one end connecting power device 11 of paddle shaft 9, and the other end of paddle shaft 9 connects swivel joint 8, swivel joint 8 is arranged heat conductive oil inlet 7 and conduction oil outlet 2.
Dryer system also comprises hotline heater 3, Heat-transfer Oil Pump 6 and surge tank 4, hotline heater 3 is arranged gas approach 3-5, oil-out 3-1, oil-in 3-2, buffering oil-in 3-4 is gentle goes out hydraulic fluid port 3-3, the gas approach 3-5 of hotline heater 3 connects flue gas air blast 5, the inlet end of flue gas air blast 5 is connected with boiler emission flue gas by pipeline, the oil-out 3-1 of hotline heater 3 connects the oil-in of Heat-transfer Oil Pump 6, the oil-out of Heat-transfer Oil Pump 6 is connected with the heat conductive oil inlet 7 on swivel joint 8, conduction oil outlet 2 on swivel joint 8 is connected with the oil-in 3-2 of hotline heater 3.The oil-in of surge tank 4 is connected with the buffering oil-out 3-3 of hotline heater 3, and the oil-out of surge tank 4 is connected with the buffering oil-in 3-4 of hotline heater 3.
Drying machine heat energy utilization system also comprises wet mud preheater 20, foam dust collector 15, condenser 17, vapour liquid separator 16, wet mud preheater 20 is provided with wet mud import 19, material outlet 21, steam inlet 22, offgas outlet 18, the indirect steam outlet 25 of drying machine 1 is connected with the steam inlet 22 of wet mud preheater 20 by cyclone separator 23, the wet material outlet 21 of mud preheater 20 is connected with the charging aperture 24 of drying machine 1, the offgas outlet 18 of wet mud preheater 20 connects air-introduced machine 14, the air outlet of air-introduced machine 14 connects foam dust collector 15, the offgas outlet of foam dust collector 15 connects the inlet exhaust gas of condenser 17, the offgas outlet of condenser 17 connects the inlet exhaust gas of vapour liquid separator 16, the upper end of vapour liquid separator 16 connects clean tail gas discharging pipe 29 deactivation charcoal absorption tower.The clean tail gas discharging pipe 29 of vapour liquid separator 16 is connected with the clean tail gas air inlet 26 of drying machine 1.
Claims (7)
1. a hollow blade dryer heat energy utilization system, comprises drying machine, and drying machine comprises frame, frame supports housing and the paddle shaft of lateral arrangement, and housing is provided with charging aperture and the first discharging opening, and paddle shaft device is in housing, one end connecting power device, the other end of paddle shaft connect swivel joint, swivel joint are arranged heat conductive oil inlet and conduction oil outlet, it is characterized in that: described drying machine heat energy utilization system also comprises wet mud preheater, foam dust collector, condenser, vapour liquid separator, wet mud preheater is provided with wet mud import, material outlet, steam inlet, offgas outlet, the housing of described drying machine is also provided with indirect steam outlet, the indirect steam outlet of drying machine is connected with the steam inlet of wet mud preheater, the wet material outlet of mud preheater is connected with the charging aperture of drying machine, the offgas outlet of wet mud preheater connects air-introduced machine, the air outlet of air-introduced machine connects foam dust collector, the offgas outlet of foam dust collector connects the inlet exhaust gas of condenser, the offgas outlet of condenser connects the inlet exhaust gas of vapour liquid separator, the upper end of vapour liquid separator connects clean tail gas discharging pipe.
2. hollow blade dryer heat energy utilization system according to claim 1, it is characterized in that: the casing of described drying machine is also provided with clean tail gas air inlet, the clean tail gas discharging pipe of described vapour liquid separator is connected with the clean tail gas air inlet of the casing of drying machine.
3. hollow blade dryer heat energy utilization system according to claim 1, is characterized in that: the casing of described drying machine is also provided with air inlet port.
4. hollow blade dryer heat energy utilization system according to claim 1, is characterized in that: the indirect steam outlet of described drying machine is by being connected with the steam inlet of wet mud preheater after cyclone separator.
5. hollow blade dryer heat energy utilization system according to claim 1, it is characterized in that: the housing of described drying machine is also provided with the second discharging opening, the second discharging opening is connected with charging aperture.
6. hollow blade dryer heat energy utilization system according to claim 1, it is characterized in that: described drying machine heat energy utilization system also comprises hotline heater and Heat-transfer Oil Pump, hotline heater arranges gas approach, oil-out, oil-in, the gas approach of hotline heater connects flue gas air blast, the inlet end of flue gas air blast is connected with boiler emission flue gas by pipeline, the oil-out of hotline heater connects the oil-in of Heat-transfer Oil Pump, the oil-out of Heat-transfer Oil Pump is connected with the heat conductive oil inlet on swivel joint, conduction oil outlet on swivel joint is connected with the oil-in of hotline heater.
7. hollow blade dryer heat energy utilization system according to claim 6, it is characterized in that: described drying machine heat energy utilization system also comprises surge tank, described hotline heater also arranges buffering oil-in is gentle goes out hydraulic fluid port, the oil-in of surge tank is connected with the buffering oil-out of hotline heater, and the oil-out of surge tank is connected with the buffering oil-in of hotline heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610022576.7A CN105509459A (en) | 2016-01-14 | 2016-01-14 | Heat energy utilizing system of hollow blade drying machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610022576.7A CN105509459A (en) | 2016-01-14 | 2016-01-14 | Heat energy utilizing system of hollow blade drying machine |
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| CN105509459A true CN105509459A (en) | 2016-04-20 |
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| CN201610022576.7A Pending CN105509459A (en) | 2016-01-14 | 2016-01-14 | Heat energy utilizing system of hollow blade drying machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007316A (en) * | 2016-05-10 | 2016-10-12 | 吴万益 | Sludge drying treatment device |
| 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 |
| CN108362096A (en) * | 2018-02-12 | 2018-08-03 | 南京高源环保工程有限公司 | A kind of material drying system and its drying means containing escaping gas |
| CN108518967A (en) * | 2018-02-27 | 2018-09-11 | 青岛创高世纪信息科技有限公司 | A kind of drying screening integrated production line |
| CN108613512A (en) * | 2018-04-29 | 2018-10-02 | 山东省科学院能源研究所 | A kind of rotary dryer and its control method of high fill-ratio and residual heat recovery |
| CN108970250A (en) * | 2018-06-29 | 2018-12-11 | 广西康纳环保有限公司 | One kind removing haze formaldehyde purifier |
| 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 |
| CN110790471A (en) * | 2019-09-30 | 2020-02-14 | 北京化工大学 | Spiral roll-in dehydration drying device |
| EP3771874A1 (en) * | 2019-07-30 | 2021-02-03 | Huber SE | Spray condenser, drying installation and method for drying wet material |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007316A (en) * | 2016-05-10 | 2016-10-12 | 吴万益 | Sludge drying treatment device |
| 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 |
| CN108362096A (en) * | 2018-02-12 | 2018-08-03 | 南京高源环保工程有限公司 | A kind of material drying system and its drying means containing escaping gas |
| CN108518967A (en) * | 2018-02-27 | 2018-09-11 | 青岛创高世纪信息科技有限公司 | A kind of drying screening integrated production line |
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| CN108613512A (en) * | 2018-04-29 | 2018-10-02 | 山东省科学院能源研究所 | A kind of rotary dryer and its control method of high fill-ratio and residual heat recovery |
| CN108970250A (en) * | 2018-06-29 | 2018-12-11 | 广西康纳环保有限公司 | One kind removing haze formaldehyde purifier |
| 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 |
| EP3771874A1 (en) * | 2019-07-30 | 2021-02-03 | Huber SE | Spray condenser, drying installation and method for drying wet material |
| CN110790471A (en) * | 2019-09-30 | 2020-02-14 | 北京化工大学 | Spiral roll-in dehydration drying device |
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