CN108662872A - A kind of microwave drier and method for low-order coal - Google Patents
A kind of microwave drier and method for low-order coal Download PDFInfo
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- CN108662872A CN108662872A CN201810484087.2A CN201810484087A CN108662872A CN 108662872 A CN108662872 A CN 108662872A CN 201810484087 A CN201810484087 A CN 201810484087A CN 108662872 A CN108662872 A CN 108662872A
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- microwave
- drying
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Classifications
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- 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
- F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
- F26B11/14—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a horizontal or slightly-inclined plane
-
- 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
-
- 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
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
- F26B25/225—Controlling the drying process in dependence on liquid content of solid materials or objects by repeated or continuous weighing of the material or a sample thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention belongs to low-order coal technical field of drying, and in particular to a kind of microwave drier and method for low-order coal.The present invention to be solved the problems, such as that current big the degree of automation of drying device power consumption is low.In order to solve the above-mentioned technical problem, the present invention proposes such a microwave drier and method for low-order coal, including run coal bin, charging gear, microwave drying oven, drawing mechanism, finished bin, waste gas condensation device, waste water collection device and wastewater treatment equipment.The present invention has the effect of that drying efficiency higher is more energy efficient and high degree of automation.
Description
Technical field
The invention belongs to low-order coal technical field of drying, and in particular to a kind of microwave drier and side for low-order coal
Method.
Background technology
The major obstacle that low-order coal utilizes at present, which is excessively high moisture, cannot meet wanting for coal processing and utilization general technology
It asks, and the drying device of current low-order coal mainly uses thermal current to dry, not only power consumption is big, and thermal current drying easily leakage is useless
Gas, it is not disposable, environment is not only polluted, but also damage to the health of worker.And current drying equipment cannot accomplish it is complete from
Dynamic feeds, dries, discharging, feeding again, and there is still a need for artificial treatments for some processes.
Invention content
According to the above-mentioned deficiencies of the prior art, a kind of for low-order coal the technical problem to be solved by the present invention is to propose
Microwave drier and method by using microwave heating, and use the higher system of the degree of automation, solve current drying
The low problem of the big the degree of automation of device power consumption has the effect of that drying efficiency higher is more energy efficient and high degree of automation.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of microwave drier for low-order coal, including run coal bin, charging gear, microwave drying oven, drawing mechanism,
Finished bin, waste gas condensation device, waste water collection device and wastewater treatment equipment；
The charging gear is used to the raw coal of run coal bin being conveyed to microwave drying oven, and microwave drying oven does raw coal
Dry processing, the low-order coal after drying are conveyed by drawing mechanism into finished bin again；
The waste gas condensation device collects the bled steam that microwave drying oven excludes, while waste water collection device is collected microwave and done
The waste water of dry case discharge, the waste water that the exhaust gas of collection is cooled to waste water and waste water collection device collection by waste gas condensation device are equal
It is displaced into wastewater treatment equipment and carries out wastewater treatment；
The microwave drying oven includes feed inlet, discharge port, drying box, propeller and microwave generator；Charging gear is logical
It crosses feed inlet and raw coal is delivered to drying box, microwave generator generates microwave and processing is dried to raw coal, meanwhile, propeller rotation
Turn, stirs raw coal, make it that vapor quickly be discharged, after drying, drawing mechanism conveys the material in drying box into finished product
Storehouse.
Preferably, the microwave drying oven includes controller, temperature detector and display screen, and temperature detector is mounted on dry
In dry case, detected value is real-time transmitted to controller, controller control display screen shows that testing result, controller are additionally operable to distinguish
Control the work of propeller, microwave generator, charging gear and drawing mechanism, wherein microwave generator work is adjusted in controller
The rate of doing work.
Preferably, it is also equipped with moisture detector in the drying box, for monitoring the humidity in drying box in real time, and will
Detected value is real-time transmitted to controller, and controller control display screen shows testing result；Humidity preset value can be voluntarily arranged in user,
Dry to complete when the humidity in drying box reaches preset value, controller controls propeller and microwave generator pause work respectively
Make, and controls drawing mechanism start-up operation.
Preferably, the drying box bottom is also equipped with pressure sensor, and pressure sensor is also connect with controller, is used for
The weight in drying box is detected, and detected value is real-time transmitted to controller, controller control display screen shows testing result；With
Family can be voluntarily arranged there are two pressure preset, and first pressure preset value is the preset value for stopping charging, and the second preset value is to stop
Only discharging starts the preset value of charging.
Preferably, the waste gas condensation device includes exhaust pipe and condenser, and the condensed device of exhaust gas that exhaust pipe is collected is cold
Waste water is congealed into, wastewater treatment equipment is displaced into.
A kind of method for microwave drying for low-order coal, which is characterized in that include the following steps：
Step S1：Raw coal in run coal bin is delivered to microwave drier by charging gear；
Step S2：Processing is dried to raw coal in microwave drier；
Step S3：It is equal that the condensed device of exhaust gas that exhaust pipe is collected is condensed into the waste water that waste water and waste water collection device are collected
It is displaced into wastewater treatment equipment and carries out wastewater treatment；
Step S4：Temperature, the humidity of display real-time display temperature detector, moisture detector and pressure sensor detection
With the gravimetric value in drying box；
Step S5：Dry to complete, controller controls propeller and microwave generator break-off respectively, and controls discharging dress
Set start-up operation；
Step S6：Controller control drawing mechanism is stopped, and charging gear is started to work, return to step S1.
Preferably, further include step S12 after the step S1：It is default that pressure sensor detects that pressure value reaches first
When value, charging gear stops feed；
Step S6 is specially：When pressure sensor detects the pressure reduction in drying box to the second preset value, control
Device control drawing mechanism is stopped, and charging gear is started to work, return to step S1.
Preferably, the step S5 is specially：
Dry to complete when moisture detector detects that humidity reaches preset value, controller controls propeller and micro- respectively
Wave producer break-off, and control drawing mechanism start-up operation.
Present invention has the advantages that：
1, using microwave drying, drying efficiency is high and more energy efficient；
2, propeller is set in drying box, evenly, the speed of waste air is faster for heating；
3, present apparatus high degree of automation.
Description of the drawings
The content expressed by this specification attached drawing and the label in figure are briefly described below：
Fig. 1 is the overall structure block diagram of the specific implementation mode of the present invention.
Fig. 2 is the microwave drying oven structure chart of the specific implementation mode of the present invention.
Fig. 3 is the microwave drying oven system block diagram of the specific implementation mode of the present invention.
Label in attached drawing be：1- feed inlets, 2- discharge ports, 3- drying boxes, 4- propellers, 5- microwave generators, 6- rows
Tracheae, 7- condensers, 8- waste water collection devices, 9- wastewater treatment equipments.
Specific implementation mode
Below by the description to embodiment, the shape of for example involved each component of specific implementation mode of the invention, structure
It makes, the mutual alignment between each section and connection relation, the effect of each section and operation principle, manufacturing process and the side of operating with
Method etc., is described in further detail, completeer to help those skilled in the art to have the inventive concept of the present invention, technical solution
Whole, accurate and deep understanding.
A kind of microwave drier for low-order coal, as shown in Figure 1, including run coal bin, charging gear, microwave drying
Case, drawing mechanism, finished bin, waste gas condensation device, waste water collection device 8 and wastewater treatment equipment 9.Charging gear is used for will be former
The raw coal of coal bunker is conveyed to microwave drying oven, and processing is dried to raw coal in microwave drying oven, and the low-order coal after drying is again by going out
Material device is conveyed into finished bin.
In drying process, waste gas condensation device collects the bled steam that microwave drying oven excludes, while waste water collection device 8 is received
Collect the waste water of microwave drying oven discharge, the exhaust gas of collection is cooled to waste water to waste gas condensation device and waste water collection device 8 is collected
Waste water be displaced into wastewater treatment equipment 9 carry out wastewater treatment.
As shown in Fig. 2, microwave drying oven includes feed inlet 1, discharge port 2, drying box 3, propeller 4 and microwave generator 5.
Raw coal is delivered to drying box 3 by charging gear by feed inlet 1, and microwave generator 5 generates microwave and processing is dried to raw coal,
Meanwhile propeller 4 rotates, and stirs raw coal, makes it that vapor quickly be discharged, after drying, drawing mechanism will be in drying box 3
Material is conveyed into finished bin.
As shown in figure 3, microwave drying oven uses automatic temperature control system, including controller, temperature detector and display screen, temperature
It spends detector to be mounted in drying box 3, detected value is real-time transmitted to controller, controller control display screen display detection knot
Fruit, controller are additionally operable to control the work of propeller 4, microwave generator 5, charging gear and drawing mechanism respectively, wherein control
5 operating power of microwave generator is adjusted in device.
It is also equipped with moisture detector in drying box 3, for monitoring the humidity in drying box 3 in real time, and detected value is real
When send controller to, controller control display screen shows testing result；Humidity preset value can be voluntarily arranged in user, work as drying box
Dry to complete when humidity in 3 reaches preset value, controller controls 5 break-off of propeller 4 and microwave generator respectively, and
Drawing mechanism is controlled to start to work.
3 bottom of drying box is also equipped with pressure sensor, and pressure sensor is also connect with controller, for detecting drying box
Weight in 3, and detected value is real-time transmitted to controller, controller control display screen shows testing result.User can be voluntarily
There are two pressure preset, first pressure preset value is the preset value for stopping charging for setting, and the second preset value is to stop discharging opening
Begin the preset value fed.
When charging, when pressure sensor detects the pressure rise in drying box 3 to first pressure preset value, illustrate micro-
Weight of material in wave drying box reaches preset value, and controller control charging gear is stopped, and microwave drying oven proceeds by
It is dried, i.e., controller control propeller 4 and microwave generator 5 are started to work；When discharging, when pressure sensor detect it is dry
When pressure reduction to the second preset value in dry case 3, controller control drawing mechanism is stopped, and charging gear is started to work.
Waste gas condensation device includes exhaust pipe 6 and condenser 7, the condensed pipework condensation of exhaust gas that exhaust pipe 6 is collected at waste water,
It is displaced into wastewater treatment equipment 9.
A kind of method for microwave drying for low-order coal includes the following steps：
Step S1：Raw coal in run coal bin is delivered to microwave drier by charging gear；
Step S2：When pressure sensor detects that pressure value reaches the first preset value, charging gear stops feed, and microwave is dry
Dry device starts that processing is dried to raw coal；
Step S3：It is equal that the condensed device of exhaust gas that exhaust pipe is collected is condensed into the waste water that waste water and waste water collection device are collected
It is displaced into wastewater treatment equipment and carries out wastewater treatment；
Step S4：Temperature, the humidity of display real-time display temperature detector, moisture detector and pressure sensor detection
With the gravimetric value in drying box；
Step S5：Dry to complete when moisture detector detects that humidity reaches preset value, controller controls spiral respectively
Paddle and microwave generator break-off, and control drawing mechanism start-up operation；
Step S6：When pressure sensor detects the pressure reduction in drying box to the second preset value, controller control
Drawing mechanism is stopped, and charging gear is started to work, return to step S1.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress, or not improved this is sent out
Bright design and technical solution directly applies to other occasions, within protection scope of the present invention.The protection of the present invention
Range should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of microwave drier for low-order coal, which is characterized in that including run coal bin, charging gear, microwave drying oven,
Drawing mechanism, finished bin, waste gas condensation device, waste water collection device (8) and wastewater treatment equipment (9)；
The charging gear is used to the raw coal of run coal bin being conveyed to microwave drying oven, and place is dried to raw coal in microwave drying oven
Reason, the low-order coal after drying are conveyed by drawing mechanism into finished bin again；
The waste gas condensation device collects the bled steam that microwave drying oven excludes, while waste water collection device (8) is collected microwave and done
The exhaust gas of collection is cooled to the waste water that waste water and waste water collection device (8) are collected by the waste water of dry case discharge, waste gas condensation device
It is displaced into wastewater treatment equipment (9) and carries out wastewater treatment；
The microwave drying oven includes feed inlet (1), discharge port (2), drying box (3), propeller (4) and microwave generator (5)；
Raw coal is delivered to drying box (3) by charging gear by feed inlet (1), and microwave generator (5) generates microwave and done to raw coal
Dry processing, meanwhile, propeller (4) rotation stirs raw coal, makes it that vapor quickly be discharged, after drying, drawing mechanism will be done
Material in dry case (3) is conveyed into finished bin.
2. the microwave drier according to claim 1 for low-order coal, which is characterized in that the microwave drying luggage
Controller, temperature detector and display screen are included, temperature detector is mounted in drying box (3), and detected value is real-time transmitted to control
Device processed, controller control display screen show that testing result, controller are additionally operable to control propeller (4), microwave generator respectively
(5), the work of charging gear and drawing mechanism, wherein microwave generator (5) operating power is adjusted in controller.
3. the microwave drier according to claim 2 for low-order coal, which is characterized in that in the drying box (3)
It is also equipped with moisture detector, for monitoring the humidity in drying box (3) in real time, and detected value is real-time transmitted to controller,
Controller control display screen shows testing result；Humidity preset value can be voluntarily arranged in user, when the humidity in drying box (3) reaches
Dry to complete when preset value, controller controls propeller (4) and microwave generator (5) break-off respectively, and controls discharging dress
Set start-up operation.
4. the microwave drier according to claim 2 for low-order coal, which is characterized in that drying box (3) bottom
Portion is also equipped with pressure sensor, and pressure sensor is also connect with controller, for detecting the weight in drying box (3), and will
Detected value is real-time transmitted to controller, and controller control display screen shows testing result；User can be voluntarily arranged there are two pressure
Preset value, first pressure preset value are the preset value for stopping charging, and the second preset value is the preset value for stopping discharging and starting charging.
5. the microwave drier according to claim 1 for low-order coal, which is characterized in that the waste gas condensation device
Including exhaust pipe (6) and condenser (7), the condensed device of exhaust gas (7) that exhaust pipe (6) is collected is condensed into waste water, is displaced into waste water
Processing unit (9).
6. a kind of method for microwave drying for low-order coal, which is characterized in that include the following steps：
Step S1：Raw coal in run coal bin is delivered to microwave drier by charging gear；
Step S2：Processing is dried to raw coal in microwave drier；
Step S3：The condensed device of exhaust gas (7) that exhaust pipe (6) is collected be condensed into waste water and waste water collection device (8) collect it is useless
Water is displaced into wastewater treatment equipment (9) and carries out wastewater treatment；
Step S4：Display real-time display temperature detector, the temperature of moisture detector and pressure sensor detection, humidity and dry
Gravimetric value in dry case (3)；
Step S5：Dry to complete, controller controls propeller (4) and microwave generator (5) break-off respectively, and controls discharging
Device is started to work；
Step S6：Controller control drawing mechanism is stopped, and charging gear is started to work, return to step S1.
7. the method for microwave drying according to claim 6 for low-order coal, which is characterized in that after the step S1 also
Including step S12：When pressure sensor detects that pressure value reaches the first preset value, charging gear stops feed；
Step S6 is specially：When pressure sensor detects pressure reduction to the second preset value in drying box (3), controller
Control drawing mechanism is stopped, and charging gear is started to work, return to step S1.
8. the method for microwave drying according to claim 6 for low-order coal, which is characterized in that the step S5 is specific
For：
Dry to complete when moisture detector detects that humidity reaches preset value, controller controls propeller (4) and microwave respectively
Generator (5) break-off, and control drawing mechanism start-up operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484087.2A CN108662872A (en) | 2018-05-19 | 2018-05-19 | A kind of microwave drier and method for low-order coal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484087.2A CN108662872A (en) | 2018-05-19 | 2018-05-19 | A kind of microwave drier and method for low-order coal |
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| Publication Number | Publication Date |
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| CN108662872A true CN108662872A (en) | 2018-10-16 |
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| CN201810484087.2A Pending CN108662872A (en) | 2018-05-19 | 2018-05-19 | A kind of microwave drier and method for low-order coal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594771A (en) * | 2019-04-17 | 2019-12-20 | 新汶矿业集团有限责任公司 | Heating and anti-freezing method for coal bunker in cold area |
| CN114993025A (en) * | 2022-06-28 | 2022-09-02 | 浙江迪邦化工有限公司 | Continuous drying device and method for N, N-cyanoethyl benzyl aniline |
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| DE2907886A1 (en) * | 1979-03-01 | 1980-09-11 | Roechling Burbach Gmbh Stahl | Coal drying process without flue gases - using microwave radiation inside enclosed tunnel |
| AU5364190A (en) * | 1989-04-18 | 1990-10-25 | Vereinigte Energiewerke Aktiengesellschaft | Process for drying solid materials in an indirectly heated fluidised bed |
| CN101126592A (en) * | 2007-06-26 | 2008-02-20 | 大唐国际化工技术研究院有限公司 | Coal granule drying process and apparatus |
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| CN101738077A (en) * | 2009-05-11 | 2010-06-16 | 中信国安盟固利新能源科技有限公司 | Brown coal drying and dehydrating device |
| CN105505424A (en) * | 2016-01-10 | 2016-04-20 | 李阳春 | Device and method for regulating humidity of coal powder by utilizing microwave preheating |
| CN206051972U (en) * | 2016-09-07 | 2017-03-29 | 中南大学 | A kind of microwave pretreatment device for high-sulfur coal desulfurization |
| CN106949721A (en) * | 2017-05-05 | 2017-07-14 | 郑州东林润光伏材料科技有限公司 | A kind of drying device by microwaves for silicon carbide micro-powder |
-
2018
- 2018-05-19 CN CN201810484087.2A patent/CN108662872A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2907886A1 (en) * | 1979-03-01 | 1980-09-11 | Roechling Burbach Gmbh Stahl | Coal drying process without flue gases - using microwave radiation inside enclosed tunnel |
| AU5364190A (en) * | 1989-04-18 | 1990-10-25 | Vereinigte Energiewerke Aktiengesellschaft | Process for drying solid materials in an indirectly heated fluidised bed |
| CN101126592A (en) * | 2007-06-26 | 2008-02-20 | 大唐国际化工技术研究院有限公司 | Coal granule drying process and apparatus |
| CN101382379A (en) * | 2008-10-17 | 2009-03-11 | 安徽农业大学 | Intelligent microwave continuous drier and control method thereof |
| CN101738077A (en) * | 2009-05-11 | 2010-06-16 | 中信国安盟固利新能源科技有限公司 | Brown coal drying and dehydrating device |
| CN105505424A (en) * | 2016-01-10 | 2016-04-20 | 李阳春 | Device and method for regulating humidity of coal powder by utilizing microwave preheating |
| CN206051972U (en) * | 2016-09-07 | 2017-03-29 | 中南大学 | A kind of microwave pretreatment device for high-sulfur coal desulfurization |
| CN106949721A (en) * | 2017-05-05 | 2017-07-14 | 郑州东林润光伏材料科技有限公司 | A kind of drying device by microwaves for silicon carbide micro-powder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594771A (en) * | 2019-04-17 | 2019-12-20 | 新汶矿业集团有限责任公司 | Heating and anti-freezing method for coal bunker in cold area |
| CN114993025A (en) * | 2022-06-28 | 2022-09-02 | 浙江迪邦化工有限公司 | Continuous drying device and method for N, N-cyanoethyl benzyl aniline |
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