CN203310227U - Microwave heating equipment for modifying lignite - Google Patents
Microwave heating equipment for modifying lignite Download PDFInfo
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- CN203310227U CN203310227U CN2013203092627U CN201320309262U CN203310227U CN 203310227 U CN203310227 U CN 203310227U CN 2013203092627 U CN2013203092627 U CN 2013203092627U CN 201320309262 U CN201320309262 U CN 201320309262U CN 203310227 U CN203310227 U CN 203310227U
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Abstract
The utility model relates to microwave heating equipment for modifying lignite. The microwave heating equipment comprises a microwave processing mechanism and a conveying belt device, wherein the microwave processing mechanism is formed by a microwave source, a microwave resonant cavity, a power splitter and a waveguide; the conveying belt device is formed by a carrier roller conveying belt, a power mechanism and a reversing mechanism; both ends of the carrier roller conveying belt are respectively provided with a feeding mechanism and a collecting mechanism; the microwave resonant cavity is positioned at the middle part of the carrier roller conveying belt; one end of the microwave resonant cavity is provided with a feed inlet and the other end of the microwave resonant cavity is provided with a discharge port; the carrier roller conveying belt passes through the microwave resonant cavity; an inlet energy leakage inhibitor is arranged at the feed inlet, which corresponds to the feeding mechanism, of the microwave resonant cavity; an outlet energy leakage inhibitor is arranged at the discharge port, which corresponds to the collecting mechanism, of the microwave resonant cavity; the top of the microwave resonant cavity is provided with a water vapour processing and collecting mechanism. The equipment has a dehydration rate of 20 percent for the lignite. The microwave heating equipment is simple to operate and convenient to use. The microwave heating equipment has high microwave conversion efficiency and a high processing speed and can be applied to large-scale industrial production.
Description
Technical field
The utility model relates to a kind of firing equipment, is specifically related to a kind of microwave heating equipment for the brown coal modification.
Background technology
Brown coal are pit coals that a kind of degree of coalification is low.China's lignite resource is relatively abundant, mainly is distributed in the provinces and regions such as Deng, Yunnan, the Inner Mongol.Brown coal have advantages of low ash, low-sulfur, low-phosphorous and volatility is high, is cleaner steam coal.But due to the water content of brown coal higher (generally in 25～30% left and right), reduced caloric value, with the coal of required 5200～5500 kilocalories in power plant/kilogram caloric value, certain gap has been arranged; Transport thermal power plant's road to far away, long distance is transported the brown coal that water content is high, caloric value is low, causes cost of transportation high in addition; The brown coal burning-point is low, easily spontaneous combustion; Discharge large quantity of exhaust gas during low-quality brown coal burning.More than restricted the extensive use of brown coal, due to the fast development of rise in oil price and Coal Chemical Industry, how cheap brown coal have been carried out to the modification utilization and again come into one's own in recent years.The drying and dehydrating technology of brown coal is a lot, be broadly divided into mechanical dehydration, dehydration by evaporation method, wherein the mechanical dehydration technology is in coal preparation plant's extensive use, as thickener, vibration filter screen, disk filter etc., but the disposal ability of this class technology and dewatering efficiency still are difficult to adapt to the requirement of brown coal dehydration, current less use.Direct drying method in the dehydration by evaporation method, or claim the thermal current drying, be to adopt heated air (being mainly flue gas) directly to contact and carry out drying with coal.Because heated air directly contacts with coal, misoperation easily causes brown coal spontaneous combustion, the security incident such as blast even.Indirect evaporation in the dehydration by evaporation method, utilize the low-pressure saturated steam indirect, safe, continued operation operation, but this method disposal ability is little, energy consumption and water consumption large.
The utility model content
For the deficiency of existing brown coal dewatering, in order to improve the characteristic of brown coal, the utility model provides a kind of dehydration of brown coal based on heating using microwave upgrading device.
Structure for the microwave heating equipment of brown coal modification is as follows:
Microwave heating equipment for the brown coal modification comprises Microwave Treatment mechanism, Microwave Treatment mechanism comprises microwave source, microwave cavity, power splitter and waveguide, described power splitter is positioned at the top of microwave cavity, and an end of waveguide connects power splitter, and the other end of waveguide connects microwave source; Also comprise conveyor-belt apparatus, described conveyor-belt apparatus comprises carrying roller conveyer belt, actuating unit and changement, and the two ends of carrying roller conveyer belt are respectively equipped with drawing-in device and gathering-device; Described microwave cavity is positioned at the middle part of carrying roller conveyer belt, and an end of microwave cavity is charging aperture, and the other end is discharging opening, and the carrying roller conveyer belt passes microwave cavity; The charging aperture place of the microwave cavity corresponding with drawing-in device is provided with entrance and leaks the energy TVS, and the discharging opening place of the microwave cavity corresponding with gathering-device is provided with outlet and leaks the energy TVS; The top of described microwave cavity is provided with Steam treatment and collecting mechanism.
The top of described microwave cavity is provided with four top window, and wherein the first top window place is provided with illuminating lamp, and the second top window place is provided with infrared temperature measurement device, and the 3rd top window place is provided with the Smoke Detection probe, and the 4th top window place is provided with illuminating lamp; The top, charging aperture side of microwave cavity and top, discharging opening side are respectively equipped with side window, and the side window place is equipped with camera.
Between microwave source and waveguide, be provided with high-power circulator and rf load; Also comprise cooling body, described cooling body is connecting respectively microwave source, high-power circulator and water load mechanism.
The material of the carrying roller conveyer belt in microwave cavity is not for absorbing the pottery of microwave energy.
Useful technique effect of the present utility model embodies in the following areas:
1). this device reaches 20% to the dehydration rate of brown coal.Brown coal after microwave modification, its pore volume and specific area reduce, and secondary water suction situation improves, and heat endurance improves, and is difficult for spontaneous combustion.Brown coal after treatment, the heating quantitative change is large, and its market price significantly improves, and good economic benefit is arranged.The utility model is simple to operate, easy to use.The microwave conversion efficiency is high, and processing speed is fast, can be applied to large-scale industrial production;
2). the utility model mainly is used in the Inner Mongol, Yunnan Province, and there is wind-power electricity generation in these places more, and the electric energy that microwave is used will not utilize thermal power generation, and this mode with the hot flue gas of tradition is compared and more reduced former consumption of coal;
3). with conventional method, compare, the microwave low-temperature process can not discharge pernicious gas, and the brown coal of processing CO when power plant burning
2Discharge also can reduce, and has alleviated environmental pollution.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the side view of Fig. 1.
Sequence number in upper figure: energy TVS 7, conveyor-belt apparatus 8, drawing-in device 9, gathering-device 10, waveguide 11, power splitter 12 are leaked in microwave source 1, microwave cavity 2, high-power circulator 3, rf load 4, cooling body 5, Steam treatment and collecting mechanism 6, outlet, entrance leaks can TVS 13.
The specific embodiment
Referring to Fig. 1, comprise Microwave Treatment mechanism for the microwave heating equipment of brown coal modification.Microwave Treatment mechanism comprises microwave source 1, microwave cavity 2, power splitter 12 and waveguide 11; Power splitter 12 is positioned at the top of microwave cavity 2, and an end of waveguide 11 connects power splitter 12, and the other end connects microwave source 1, sees Fig. 2.Also comprise conveyor-belt apparatus 8, conveyor-belt apparatus 8 comprises carrying roller conveyer belt, actuating unit and changement, and the two ends of carrying roller conveyer belt are separately installed with drawing-in device 9 and gathering-device 10.Microwave cavity 2 is positioned at the middle part of carrying roller conveyer belt, and an end of microwave cavity 2 is charging aperture, and the other end is discharging opening, and the carrying roller conveyer belt passes microwave cavity 2, and the roller material of the interior carrying roller conveyer belt of microwave cavity 2 is not for absorbing the special cermacis of microwave energy.The charging aperture place of the microwave cavity 2 corresponding with drawing-in device 9 is equipped with entrance and leaks energy TVS 13, and the discharging opening place of the microwave cavity 2 corresponding with gathering-device 10 is equipped with outlet and leaks energy TVS 7.The top of microwave cavity 2 is equipped with Steam treatment and collecting mechanism 6, and the Vapor Sink General Logistics Department of collection is drained into to the external world by house steward PVC.
Referring to Fig. 2, high-power circulator 3, rf load 4 are installed between microwave source 1 and waveguide 11, cooling body 5 is connecting respectively microwave source 1, high-power circulator 3 and rf load 4.
The top of microwave cavity 2 offers respectively four top window, wherein the first top window place is equipped with illuminating lamp, the second top window place is equipped with infrared temperature measurement device, the 3rd top window place is equipped with the Smoke Detection probe, the 4th top window place is equipped with illuminating lamp, can understand in time the situation in microwave cavity 2.Charging aperture upper lateral part and the discharging opening upper lateral part of microwave cavity 2 offer respectively side window, and the side window place all is equipped with camera.
During work, drawing-in device 9 is delivered to brown coal on the carrying roller conveyer belt, and the carrying roller conveyer belt is uniform motion under the drive of actuating unit, and brown coal at the uniform velocity pass microwave cavity 2 with conveyer belt, are advanced by charging aperture, by discharging opening, are gone out after finishing dealing with.In order not change ature of coal and to prevent coal combustion, during the coal heating, temperature is controlled at 90 ℃-100 ℃.Position by feed baffle arranges the ulking thickness of having determined brown coal, by calculating and lot of experiments, has determined the degree of depth of microwave penetration brown coal, has further improved the uniformity of brown coal drying; Make the dehydration rate of brown coal reach 20%.This device can, according to the difference of disposition, be adjusted the belt speed of microwave output power and carrying roller conveyer belt.
Claims (4)
1. for the microwave heating equipment of brown coal modification, comprise Microwave Treatment mechanism, Microwave Treatment mechanism comprises microwave source, microwave cavity, power splitter and waveguide, and described power splitter is positioned at the top of microwave cavity, one end of waveguide connects power splitter, and the other end of waveguide connects microwave source; It is characterized in that: also comprise conveyor-belt apparatus, described conveyor-belt apparatus comprises carrying roller conveyer belt, actuating unit and changement, and the two ends of carrying roller conveyer belt are respectively equipped with drawing-in device and gathering-device; Described microwave cavity is positioned at the middle part of carrying roller conveyer belt, and an end of microwave cavity is charging aperture, and the other end is discharging opening, and the carrying roller conveyer belt passes microwave cavity; The charging aperture place of the microwave cavity corresponding with drawing-in device is provided with entrance and leaks the energy TVS, and the discharging opening place of the microwave cavity corresponding with gathering-device is provided with outlet and leaks the energy TVS; The top of described microwave cavity is provided with the Steam treatment collecting mechanism.
2. the microwave heating equipment for the brown coal modification according to claim 1, it is characterized in that: the top of described microwave cavity is provided with four top window, wherein the first top window place is provided with illuminating lamp, the second top window place is provided with infrared temperature measurement device, the 3rd top window place is provided with the Smoke Detection probe, and the 4th top window place is provided with illuminating lamp; The top, charging aperture side of microwave cavity and top, discharging opening side are respectively equipped with side window, and the side window place is equipped with camera.
3. the microwave heating equipment for the brown coal modification according to claim 1, is characterized in that: between microwave source and waveguide, be provided with high-power circulator and rf load; Also comprise cooling body, described cooling body is connecting respectively microwave source, high-power circulator and water load mechanism.
4. the microwave heating equipment for the brown coal modification according to claim 1 is characterized in that: the material of the carrying roller conveyer belt in microwave cavity is not for absorbing the pottery of microwave energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203092627U CN203310227U (en) | 2013-05-31 | 2013-05-31 | Microwave heating equipment for modifying lignite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203092627U CN203310227U (en) | 2013-05-31 | 2013-05-31 | Microwave heating equipment for modifying lignite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310227U true CN203310227U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203092627U Expired - Lifetime CN203310227U (en) | 2013-05-31 | 2013-05-31 | Microwave heating equipment for modifying lignite |
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| Country | Link |
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| CN (1) | CN203310227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779072A (en) * | 2016-04-10 | 2016-07-20 | 安徽众尚微波科技有限公司 | Microwave heating device for lignite modifying |
| CN108882427A (en) * | 2018-06-11 | 2018-11-23 | 南京三乐微波技术发展有限公司 | A kind of high-power industrialized microwave thawing equipment |
-
2013
- 2013-05-31 CN CN2013203092627U patent/CN203310227U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779072A (en) * | 2016-04-10 | 2016-07-20 | 安徽众尚微波科技有限公司 | Microwave heating device for lignite modifying |
| CN105779072B (en) * | 2016-04-10 | 2018-11-06 | 安徽众尚微波科技有限公司 | A kind of microwave heating equipment being modified for lignite |
| CN108882427A (en) * | 2018-06-11 | 2018-11-23 | 南京三乐微波技术发展有限公司 | A kind of high-power industrialized microwave thawing equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
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| CX01 | Expiry of patent term |