CN218349175U - Wet material drying system - Google Patents
Wet material drying system Download PDFInfo
- Publication number
- CN218349175U CN218349175U CN202222247283.2U CN202222247283U CN218349175U CN 218349175 U CN218349175 U CN 218349175U CN 202222247283 U CN202222247283 U CN 202222247283U CN 218349175 U CN218349175 U CN 218349175U
- Authority
- CN
- China
- Prior art keywords
- steam
- rotary dryer
- discharging
- screw conveyor
- steam rotary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a wet material drying system belongs to drying equipment technical field, including steam rotary dryer, the material feeding unit who is connected with steam rotary dryer's feed inlet, the discharging device who is connected with steam rotary dryer's discharge gate and with the scrubbing tower of steam rotary dryer's gas vent intercommunication, be equipped with the high temperature carrier gas air-supply chamber rather than the pay-off cavity intercommunication on the steam rotary dryer, high temperature carrier gas air-supply chamber passes through circulating fan and scrubbing tower intercommunication, is equipped with heating device between circulating fan and the high temperature carrier gas blast pipe. Through adopting circulation high temperature carrier gas direct heating to cooperate with the dry method of steam pipe steam intermittent type heating, heat utilization rate is high, and the rate of heating and drying is fast, can transition viscidity phase fast, and high temperature carrier gas blows along carrying the cavity simultaneously, still can blow down a small amount of adhesion material on the steam heat exchange tube, reduces the clearance number of times, and high temperature carrier gas can also carry vapor together to take out when discharging for the discharge of vapor.
Description
Technical Field
The utility model relates to a drying equipment technical field especially relates to a wet material drying system.
Background
The coal gasification technology is a leading technology and a core technology of the coal chemical industry, and residue discharged after coal gasification treatment has higher carbon content, generally more than 20 percent, even more than 40 percent and higher heat value, so if the residue is directly buried according to the existing solid waste treatment mode, precious carbon sources are wasted, a large amount of land resources are occupied, the local water quality and geological environment are influenced, and the environment is influenced in the transportation process. However, the residue after gasification belongs to wet materials and can be utilized only after dehydration, and the carbon component in the residue after gasification has high porosity, and even after centrifugal dehydration, the water content of the residue is still about 50-60%, so the residue after centrifugal dehydration needs to be dried and dehydrated to enable the residue to reach the standard of resource utilization.
At present, the wet material residue is dried mainly by a steam pipe rotary dryer, for example, the patent number is 201410341724.2, and the patent name is "a drying method of a sludge steam pipe rotary dryer", and a drying system special for drying wet materials is disclosed. Wet material residues (gasified slag or sludge) are fed into a feeding chamber of a steam pipe rotary dryer through a feeding hole, the wet material is conveyed to a discharging hole under the action of a spiral conveying mechanism, then a high-temperature steam heat exchange pipe can be heated for drying, the dried slag material can be discharged from the discharging hole of the steam pipe rotary dryer, steam after heat exchange is changed into liquid to be discharged from a liquid outlet end of the steam heat exchange pipe, gas formed by mixing steam generated by heating and evaporating in the wet material and air can be fed into a spray washing tower through an exhaust hole for purification and dust removal, meanwhile, under the spraying action of the spray tower, the high-temperature tail gas is cooled, the steam in the tail gas can be condensed into water drops, the water drops fall into a circulating pool at the bottom of the washing tower along with the spray liquid for circulating spray, and then the tail gas after purification, dust removal and drying is discharged outside after passing through a condenser. However, because the gasified slag has the characteristics of high carbon content, large ash content and the like, the gasified slag with the water content of 50-60% also has good fluidity, and the wet content has high cohesiveness under the condition of 45-55%, so that wet materials are easily adhered to a steam heat exchange tube in a conveying chamber along with gradual drying in a steam tube rotary dryer, the heating efficiency is reduced, and the cleaning interval is obviously accelerated to improve the cleaning cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem, the utility model provides a wet material drying system, but wide application in various wet material drying, residue or mud etc. after the coal gasification, adopt circulation high temperature carrier gas direct heating, cooperation steam pipe steam intermittent heating drying's method, heat utilization rate is high, the handling capacity is big, it is fast to heat drying, can pass through the viscidity phase fast, thereby avoid wet material adhesion on the steam heat exchange tube in carrying the cavity, high temperature carrier gas blows in the same direction as carrying the cavity simultaneously, still can blow down a small amount of adhesion dry material on the steam heat exchange tube, with the heating efficiency who avoids influencing the steam heat exchange tube, reduce the clearance number of times, in addition high temperature carrier gas can also wrap up and hold the wet material evaporation water vapor together and take off when discharging from steam rotary drier, accelerate the discharge of vapor.
In order to achieve the above purpose, the utility model provides a following scheme: the utility model discloses a wet material drying system, including steam rotary dryer, with material feeding unit that the feed inlet of steam rotary dryer is connected, with discharging device that the discharge gate of steam rotary dryer is connected and with the scrubbing tower of steam rotary dryer's gas vent intercommunication, be equipped with the high temperature carrier gas air-supply chamber rather than the pay-off cavity intercommunication on the steam rotary dryer, high temperature carrier gas air-supply chamber is close to the feed inlet of steam rotary dryer, high temperature carrier gas air-supply chamber pass through circulating fan with the scrubbing tower intercommunication, circulating fan with be equipped with heating device between the high temperature carrier gas blast pipe.
Preferably, a cyclone dust collector and a bag-type dust collector are sequentially arranged between the exhaust port of the steam rotary dryer and the washing tower.
Preferably, the washing column is a tray column, a packed column or a spray column.
Preferably, the heating means comprises an air heater.
Preferably, the feeding device comprises a buffer bin, and a bin bottom screw conveyor for feeding materials to a feeding hole of the steam rotary dryer is arranged at the bottom of the buffer bin.
Preferably, the discharging device comprises a discharging screw conveyor, a discharging screw conveyor discharging port and a discharging screw conveyor feeding port communicated with a discharging port of the steam rotary dryer are arranged on the discharging screw conveyor, and a cooling screw conveyor for discharging dried slag is arranged below the discharging port of the discharging screw conveyor.
Preferably, the bottom of a storehouse screw conveyer with still be equipped with between the feed inlet of steam rotary dryer and mix the machine, be equipped with on the machine of mixing mix machine first feed inlet, mix machine second feed inlet and with the mixed machine discharge gate of steam rotary dryer's feed inlet intercommunication, it is located to mix machine second feed inlet mix machine first feed inlet with mix between the machine discharge gate, still be equipped with ejection of compact screw conveyer returning charge mouth on the ejection of compact screw conveyer, ejection of compact screw conveyer returning charge mouth through the returning charge device to mix the pay-off of machine second feed inlet.
Preferably, the material returning device comprises a first-stage material returning belt conveyor and a second-stage material returning belt conveyor, the feed end of the first-stage material returning belt conveyor is communicated with the material returning opening of the discharging screw conveyor, the discharge end of the first-stage material returning belt conveyor is communicated with the feed end of the second-stage material returning belt conveyor, and the discharge end of the second-stage material returning belt conveyor is communicated with the second feed opening of the mixing machine.
Preferably, a liquid outlet of a steam heat exchange tube in the feeding cavity of the steam rotary dryer is connected with a hot water tank, and the steam heat exchange tube is connected with a high-temperature steam system.
Preferably, a hot water pump for supplying hot water to the outside is arranged on the hot water tank.
The utility model discloses for prior art gain following technological effect:
1. the utility model discloses an among the wet material drying system, through set up high temperature carrier gas air supply chamber on steam rotary dryer, and with it through circulating fan and scrubbing tower intercommunication back, tail gas after the steam rotary dryer handles only needs heating device heating and send back high temperature carrier gas air supply chamber after, originally want exhaust tail gas alright regard as high temperature carrier gas, carry out the direct heating to the wet material of sending into in the steam rotary dryer, the indirect heating of the steam heat exchange tube in the steam rotary dryer is being cooperated, wet material drying speed can be improved by a wide margin, thereby the viscidity phase with wet material is crossed fast, in order to avoid the adhesion on screw conveyor, high temperature carrier gas blows along pay-off cavity axial simultaneously, still can blow the dry material of adhesion on screw conveyor down, reduce the adhesion volume, thereby reduce the clearance number of times, and high temperature carrier gas can also wrap up and carry on the wet material evaporation steam together to bring along when discharging from steam rotary dryer, accelerate the discharge of vapor.
2. The utility model discloses an among the wet material drying system, still be equipped with the mixing machine between buffer memory storehouse and steam rotary dryer, can send into the mixing machine with refrigerated high temperature material after the drying through the returning charge device, the wet material of sending into with the buffer memory storehouse mixes, can form and preheat and the effect of falling wet in advance, reduce desiccator import moisture content, reduce the stickness of material, accelerate follow-up dry speed of heating simultaneously, and dry material can also reduce certain viscidity with wet material mixture, avoid the material adhesion on the screw conveyer in the steam rotary dryer constructs.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a wet material drying system;
FIG. 2 is a schematic view of a feeding device of the wet material drying system;
FIG. 3 is a schematic structural diagram of a discharging device of the wet material drying system;
fig. 4 is a schematic diagram of the structure of the wet material drying system at the washing tower.
Description of the reference numerals: 1. a cache bin; 2. a bin bottom screw conveyor; 3. a mixer; 4. a steam rotary dryer; 5. a discharge screw conveyor; 6. cooling the screw conveyor; 7. a primary material returning belt conveyor; 8. a secondary material returning belt conveyor; 9. a cyclone dust collector; 10. a bag-type dust collector; 11. a washing tower; 12. a water circulating pump; 13. a condenser; 14. a circulating fan; 15. an air heater; 16. a hot water tank; 17. a hot water pump; 18. a feed inlet of the steam rotary dryer; 19. a discharge port of the steam rotary dryer; 20. a high-temperature carrier gas air supply chamber; 21. an exhaust port of the steam rotary dryer; 22. a liquid outlet of the steam heat exchange tube; 23. an air inlet of the steam rotary dryer; 24. a discharge port of the discharge screw conveyor; 25. a material returning port of the discharging screw conveyor; 26. cooling the water inlet of the screw conveyor; 27. cooling the water outlet of the screw conveyor; 28. a first feed inlet of the mixer; 29. a second feed inlet of the mixer; 30. and (4) discharging the mixer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment provides a wet material drying system which can be widely applied to drying of various wet materials, such as residues or sludge after coal gasification. As shown in fig. 1 to 4, the steam rotary dryer comprises a feeding device, a discharging device, a heating device, a steam rotary dryer 4, a washing tower 11 and a circulating fan 14, wherein the feeding device is connected with a feed inlet 18 of the steam rotary dryer at the top of the head end of the steam rotary dryer 4, the discharging device is connected with a discharge outlet 19 of the steam rotary dryer at the bottom of the tail end of the steam rotary dryer 4, and the washing tower 11 is connected with an exhaust outlet 21 of the steam rotary dryer at the top of the tail end of the steam rotary dryer 4. The head end of the steam rotary dryer 4 is provided with a high-temperature carrier gas air supply chamber 20 at a position close to a feed inlet 18 of the steam rotary dryer, the high-temperature carrier gas air supply chamber 20 is communicated with a feed chamber of the steam rotary dryer 4, a tail gas outlet of the washing tower 11 is communicated with the high-temperature carrier gas air supply chamber 20 through a circulating fan 14, and a heating device is arranged on a pipeline between the circulating fan 14 and the high-temperature carrier gas air supply chamber 20.
The working principle is as follows, taking the gasified slag wet material as an example:
firstly, feeding wet slag materials with the moisture content of 50-60% from a centrifuge into a feeding cavity of a steam rotary dryer 4 through a feeding hole 18 of the steam rotary dryer by a feeding device, and conveying the wet slag materials to move towards a discharging hole 19 of the steam rotary dryer by a spiral conveying mechanism in the feeding cavity;
then, introducing low-pressure high-temperature steam of 145-175 ℃ into a steam heat exchange pipe in the steam rotary dryer 4 through a steam rotary dryer air inlet 23, feeding 125-150 ℃ high-temperature carrier gas into a feeding chamber through a high-temperature carrier gas air feeding chamber 20, wherein the steam heat exchange pipe can indirectly heat wet materials in the feeding chamber, the high-temperature carrier gas can move along the axial direction of the feeding chamber to the tail end of the steam rotary dryer 4 and directly heat the wet materials in the feeding chamber, so that on one hand, the drying of the wet materials can be accelerated, the viscosity of the wet materials can be reduced, on the other hand, less materials adhered to a bolt conveying mechanism can be blown down under the blowing of the high-temperature carrier gas, the wet materials are prevented from being adhered to the spiral conveying mechanism, and meanwhile, water vapor evaporated from the heated wet materials is wrapped by the high-temperature carrier gas and can be better discharged from an exhaust port 21 of the steam rotary dryer and enters a washing tower 11 for dedusting and purification;
finally, the dried 85-95 ℃ dry material is discharged from a discharge port 19 of a steam rotary dryer, steam condensate after heat exchange in a steam heat exchange pipe is discharged through a liquid outlet 22 of the steam heat exchange pipe, the high-temperature tail gas enters a washing tower 11, the temperature of the high-temperature tail gas is rapidly reduced in the process of dedusting and purifying low-temperature liquid sprayed by a sprayer, the steam in the high-temperature tail gas is rapidly condensed into liquid drops, then the liquid drops fall into a circulating pool at the bottom of the washing tower 11 along with the low-temperature liquid, the tail gas is dried, dedusted and purified, the dried and purified tail gas is discharged through a tail gas discharge port at the top of the washing tower 11, then the tail gas is sent into a heating device under the action of a circulating fan 14, then the high-temperature carrier gas at 125-150 ℃ is formed again under the heating of the heating device and sent into a high-temperature carrier gas air supply chamber 20, the liquid in the circulating pool is sent into a condenser 13 through a circulating water pump 12 to be cooled, and then sent into the sprayer at the top of the washing tower 11 again to be sprayed circularly.
In the embodiment, the heating temperature of the high-temperature circulating carrier gas is 125-150 ℃, the heating temperature of the low-pressure steam is 145-175 ℃, the heat source is mild and is far lower than the natural temperature point of the material, the drying process is safe and reliable, the system configuration is simple, and the equipment investment cost is low.
In this embodiment, as shown in fig. 1 to 4, a cyclone 9 and a bag-type dust collector 10 are sequentially disposed between the exhaust port 21 of the steam rotary dryer and the washing tower 11 to effectively remove dust from the high-temperature exhaust gas.
Further, in the present embodiment, as shown in fig. 1 to 4, the scrubber 11 may be a tray column, a packed column, or a spray column, and is preferably a spray column.
In this embodiment, as shown in fig. 1 to 4, the heating device includes an air heater 15, a vent pipe and a heat exchange pipe are arranged in the air heater 15, an air inlet end and an air outlet end of the vent pipe are respectively communicated with the circulating fan 14 and the high-temperature carrier gas supply chamber 20, the air inlet end and the air outlet end of the heat exchange pipe are used for introducing low-pressure high-temperature steam and discharging steam condensate after heat exchange, and the high-temperature steam in the heat exchange pipe can heat the tail gas in the vent pipe, so as to form high-temperature carrier gas.
In this embodiment, as shown in fig. 1 to 4, the feeding device includes a buffer bin 1, and a bin bottom screw conveyor 2 for feeding to a feeding port 18 of the steam rotary dryer is arranged at the bottom of the buffer bin 1.
As shown in fig. 1 to 4, the discharging device includes a discharging screw conveyor 5 and a cooling screw conveyor 6, the discharging screw conveyor 5 is located below the steam rotary dryer 4, and the cooling screw conveyor 6 is located below the discharging screw conveyor 5. Discharging screw conveyor 5 is provided with a discharging screw conveyor feeding port and a discharging screw conveyor discharging port 24, the discharging screw conveyor feeding port is communicated with a steam rotary dryer discharging port 19, the discharging screw conveyor discharging port 24 is communicated with the cooling screw conveyor 6 feeding end, and the cooling screw conveyor 6 is used for cooling and delivering the dried materials. The shell of the cooling screw conveyor 6 is provided with a jacket or a cooling pipeline, the jacket or the cooling pipeline is provided with a cooling screw conveyor water inlet 26 and a cooling screw conveyor water outlet 27, the cooling screw conveyor water inlet 26 is used for introducing circulating cooling water, and the cooling screw conveyor water outlet 27 is used for discharging the circulating cooling water.
Further, in this embodiment, as shown in fig. 1 to 4, a mixer 3 is further disposed between the bin bottom screw conveyor 2 and the feed inlet 18 of the steam rotary dryer, a mixer first feed inlet 28, a mixer second feed inlet 29 and a mixer discharge outlet 30 are disposed on the mixer 3, and the mixer second feed inlet 29 is disposed between the mixer first feed inlet 28 and the mixer discharge outlet 30. The first mixer inlet 28 is located below the bin bottom screw conveyor 2 and is communicated with the discharge end of the bin bottom screw conveyor 2, and the mixer outlet 30 is located above and is communicated with the steam rotary dryer inlet 18. The discharging screw conveyor 5 is also provided with a material returning port 25 of the discharging screw conveyor, and the material returning port 25 of the discharging screw conveyor feeds materials to the second feeding port 29 of the mixing machine through a material returning device. Discharging screw conveyor 5 sends most high temperature dry material to cooling screw conveyor 6 and cools off and arrange outward, and the remainder then sends to in mixing machine second feed inlet 29 through discharging screw conveyor material returning mouth 25 and material returning device for send into with mixing machine first feed inlet 28 and mix the interior wet material of machine 3 and mix, dry and preheat the wet material tentatively. If the wet slag material with the moisture content of 50-60% discharged from the buffer bin 1 enters the mixer 3 to be mixed with the returned hot dry material, the moisture content can be reduced to 35-45%.
In this embodiment, as shown in fig. 1 to fig. 4, the material returning device includes a first-stage material returning belt conveyor 7 and a second-stage material returning belt conveyor 8, a feed end of the first-stage material returning belt conveyor 7 is communicated with the material returning opening 25 of the discharge screw conveyor, a discharge end of the first-stage material returning belt conveyor 7 is communicated with a feed end of the second-stage material returning belt conveyor 8, and a discharge end of the second-stage material returning belt conveyor 8 is communicated with the second feed opening 29 of the mixer.
In this embodiment, as shown in fig. 1 to 4, a hot water tank 16 is connected to a vapor heat exchange tube liquid outlet 22 of a vapor heat exchange tube in the feeding chamber of the vapor rotary dryer 4. The steam inlet of the steam heat exchange pipe is connected with a high-temperature steam system, and low-pressure high-temperature steam can be injected into the steam heat exchange pipe through the high-temperature steam system. The discharged liquid may be collected by hot water tank 16 for other use or sent to a high temperature steam system for reuse in a steam cycle.
In the present embodiment, as shown in fig. 1 to 4, a hot water pump 17 for supplying hot water to the outside is provided to the hot water tank 16.
The utility model discloses a specific example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. The utility model provides a wet material drying system, its characterized in that, including steam rotary dryer, with material feeding unit that the feed inlet of steam rotary dryer is connected, with discharging device that the discharge gate of steam rotary dryer is connected and with the scrubbing tower of steam rotary dryer's gas vent intercommunication, be equipped with the high temperature carrier gas air-supplying chamber rather than the pay-off cavity intercommunication on the steam rotary dryer, high temperature carrier gas air-supplying chamber is close to the feed inlet of steam rotary dryer, high temperature carrier gas air-supplying chamber pass through circulating fan with the scrubbing tower intercommunication, circulating fan with be equipped with heating device between the high temperature carrier gas blast pipe.
2. The wet material drying system according to claim 1, wherein a cyclone dust collector and a bag-type dust collector are sequentially arranged between the exhaust port of the steam rotary dryer and the washing tower.
3. The wet material drying system according to claim 2, wherein the washing tower is a tray tower, a packed tower or a spray tower.
4. A wet material drying system according to claim 1, wherein said heating means comprises an air heater.
5. The wet material drying system according to claim 1, wherein the feeding device comprises a buffer bin, and a bin bottom screw conveyor for feeding materials to a feeding hole of the steam rotary dryer is arranged at the bottom of the buffer bin.
6. The wet material drying system according to claim 5, wherein the discharging device comprises a discharging screw conveyor, a discharging screw conveyor discharging port and a discharging screw conveyor feeding port communicated with a discharging port of the steam rotary dryer are arranged on the discharging screw conveyor, and a cooling screw conveyor for discharging dried slag is arranged below the discharging port of the discharging screw conveyor.
7. The wet material drying system according to claim 6, wherein a mixer is further arranged between the bin bottom screw conveyor and the feed inlet of the steam rotary dryer, a first feed inlet of the mixer, a second feed inlet of the mixer and a discharge outlet of the mixer communicated with the feed inlet of the steam rotary dryer are arranged on the mixer, the second feed inlet of the mixer is located between the first feed inlet of the mixer and the discharge outlet of the mixer, a return port of the discharge screw conveyor is further arranged on the discharge screw conveyor, and the return port of the discharge screw conveyor feeds materials to the second feed inlet of the mixer through a return device.
8. The wet material drying system according to claim 7, wherein the material returning device comprises a first-stage material returning belt conveyor and a second-stage material returning belt conveyor, the feeding end of the first-stage material returning belt conveyor is communicated with the material returning opening of the discharging screw conveyor, the discharging end of the first-stage material returning belt conveyor is communicated with the feeding end of the second-stage material returning belt conveyor, and the discharging end of the second-stage material returning belt conveyor is communicated with the second feeding opening of the mixer.
9. The wet material drying system according to claim 1, wherein a hot water tank is connected to a liquid outlet of a steam heat exchange pipe in the feeding chamber of the steam rotary dryer, and the steam heat exchange pipe is connected with a high-temperature steam system.
10. The wet material drying system according to claim 9, wherein a hot water pump for supplying hot water to the outside is provided on the hot water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222247283.2U CN218349175U (en) | 2022-08-25 | 2022-08-25 | Wet material drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222247283.2U CN218349175U (en) | 2022-08-25 | 2022-08-25 | Wet material drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218349175U true CN218349175U (en) | 2023-01-20 |
Family
ID=84916116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222247283.2U Active CN218349175U (en) | 2022-08-25 | 2022-08-25 | Wet material drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218349175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115388638A (en) * | 2022-08-25 | 2022-11-25 | 天华化工机械及自动化研究设计院有限公司 | Wet material drying system |
-
2022
- 2022-08-25 CN CN202222247283.2U patent/CN218349175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115388638A (en) * | 2022-08-25 | 2022-11-25 | 天华化工机械及自动化研究设计院有限公司 | Wet material drying system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103575068B (en) | Lignite drying water recycling and drying tail gas recycling system | |
| RU2527904C2 (en) | Multistage system and method of preliminary drying brown coal using superheated steam | |
| CN101831314A (en) | Method for humidifying and drying coking coal in coke oven and equipment therefor | |
| CN102199464B (en) | Drying and water-recovering process of heat conduction coal by venturi injecting circulation of tail gas with low oxygen content | |
| CN218349175U (en) | Wet material drying system | |
| CN111288463A (en) | Sludge drying and incinerating system and drying and incinerating method | |
| CN101708939B (en) | Sludge drying incineration processing system utilizing system residual heat | |
| CN105466157A (en) | Vacuum tube bundle drying system with waste heat for multiple-effect evaporation and pneumatic drying | |
| CN105466196A (en) | Double-effect vacuum tube bundle drying system | |
| US5966838A (en) | Process and apparatus for drying material with indirectly heated driers and for decontaminating waste gas | |
| CN115388638A (en) | Wet material drying system | |
| CN104524908A (en) | Film dedusting device and coal pyrolysis technology by utilization of film dedusting device | |
| CN103123205A (en) | Fluidization moving series arrangement steam drying system and technology | |
| CN109574455A (en) | A kind of heat accumulating type sludge drying carbonization system | |
| CN110841379A (en) | High-efficiency bag-type dust removal and ammonia desulfurization combined system and process for regenerated flue gas of catalytic cracking or cracking device | |
| CN105546549A (en) | Trash dechlorination device and method | |
| JP4588723B2 (en) | Organic waste liquid processing apparatus and processing method | |
| CN218879468U (en) | System for preparing nitric acid by cyclic pyrolysis of nitrate gas | |
| CN204079746U (en) | A kind of heat drying system | |
| CN212205356U (en) | Industrial salt drying equipment | |
| CN114646207A (en) | Wet blue algae drying method | |
| CN104710094A (en) | Printing and dyeing sludge drying method and apparatus thereof | |
| RU2038344C1 (en) | Dung processing device | |
| CN210752073U (en) | Cement kiln tail flue gas desulfurization device | |
| CN106986520A (en) | A kind of drying sludge carbonization combined unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |