CN203591992U - Device for activating coal gangue with microwave - Google Patents
Device for activating coal gangue with microwave Download PDFInfo
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- CN203591992U CN203591992U CN201320694009.8U CN201320694009U CN203591992U CN 203591992 U CN203591992 U CN 203591992U CN 201320694009 U CN201320694009 U CN 201320694009U CN 203591992 U CN203591992 U CN 203591992U
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- quartz glass
- glass reactor
- gangue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
A device for activating coal gangue with microwave comprises a micro-wave oven with a magnetron, wherein a quartz glass reactor is arranged in the micro-wave oven; a hopper is communicated with the quartz glass reactor through a rotary feeder; the quartz glass reactor is also communicated with an air compressor; the outlet of the quartz glass reactor is connected with a gathering bottle; a 200 mesh screen mesh and a first 400 mesh screen mesh are arranged on a discharging path sequentially; the gathering bottle is connected back to the quartz glass reactor. The whole device operates under a positive pressure to ensure operation safety; the air compressor is adopted for driving to enhance the automation of flow operation; the dedicated quartz glass reactor is adopted to greatly enlarge and prolong the contact space and time between coal gangue powder and a wave-absorbing agent; the activation efficiency is high; the energy consumption is low; coal gangue is burnt in an oxygen-enriched high-temperature environment to remove carbon, so that energy is further saved; the device is suitable for quality improvement of various coal gangue.
Description
Technical field
The utility model belongs to gangue upgrading and utilizes equipment technical field, particularly a kind of device of microwave activation gangue.
Background technology
The main component of gangue is Al
2o
3(15～40%), SiO
2(30～60%), Fe
2o
3(2～15%), MgO (1～3%), K
2o (1～2%) and TiO
2(1～4%) etc.More than 1500 of the existing coal gangue hill in the whole nation, accumulative total is stored up 3,400,000,000 tons of gangues, takes up an area and exceedes 200,000 mu, and annual increasing newly taken up an area more than 6000 mu.Can there is spontaneous combustion under certain condition in the gangue of bulk deposition, give off poisonous gas, and while drenching with rain, harmful substance permeates the ground with rainwater again, causes serious environmental pollution.Meanwhile, by seeing the composition of gangue, in gangue, contain the metallic elements such as abundant Al, Fe, Ti, if can be recycled, will produce huge economic worth and social benefit.
Because gangue has higher lattice energy, there is hardly reactivity, if not treated directly upgrading utilization in addition, efficiency is very low.Therefore, effectively utilize the useful component in gangue, first will activate it, making the crystal structure transition that its orderly activity is low is active higher merocrystalline and noncrystalline, thereby improves its reactivity.At present, activating coal gangue method mainly contains mechanical activation, chemical activation and thermal activation.
1. mechanical activation
Mechanical activation refer to by by levigate gangue to improve its active activation method.Can make the rapid refinement of particle by mechanical grinding, improve the specific area of particle, increase the interface of aquation reflection.
2. chemical activation
Chemical activation refers to by introducing a small amount of exciting agent, makes its Si-O key and Al-O key of destroying gangue surface, and participates in or accelerate the activation method of gangue and hydrolysis product of cement secondary response.In the time that exciting agent volume exceedes the optimum mix amount, [OH]-concentration is too high, because excitation rate is fast, forms one deck hydrated product diaphragm on gangue material particles surface, and prevention reaction is further carried out.
3. thermal activation
Gangue mesosilicic acid salt mineral, except having on a small quantity the silicate of frame shape structure, are mainly the clay minerals that kaolinite and hydromica etc. have layer structure.The object of thermal activation is to utilize high temperature to make the each particulate in gangue microstructure produce violent warm-up movement, slough the combination water in mineral, make the cations such as calcium, magnesium, iron reselect calking position, thereby make silicon-oxy tetrahedron and alumina triangle body cannot aggregate into long-chain, and there is a lot of breakaway poings, form thermodynamic instability structure, in the gangue after calcining, contain a large amount of active silicas and metal oxide.Various places gangue composition difference, therefore optimal activation temperature is also not quite similar, and normally colliery powder is calcined 1.5～2 hours in Muffle furnace at 700～850 ℃.Although the research of calcining coal gangue is a lot, be mostly laboratory research, not yet form industrial applications.
Numerous research shows, thereby thermal activation is to improve the necessary means that gangue active upgrading utilizes.The subject matter that above-mentioned process of thermal activation exists is: soak time is long, a large amount of electric energy are consumed, and the metallic element dissolution rate after activation remains lower (40～65%), waste residue does not reach the purity requirement of silica series product processed yet, and the unclear prospect that gangue upgrading is utilized is bright.
How solving the efficient difficult problem that separates of metallic element and silica in gangue, improve metal dissolving rate, make the purity of the silica in residue reach the ingredient requirement of the serial product of silica processed simultaneously, is current problem demanding prompt solution.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of device of microwave activation gangue, and this device moves continuously, easy to operate, and energy consumption is low, and efficiency is high, suitable all kinds of gangues.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of device of microwave activation gangue, comprise the micro-wave oven 12 with magnetron 4, in micro-wave oven 12, be provided with quartz glass reactor 3, loading hopper 1 is communicated with quartz glass reactor 3 by revolution charger 2, quartz glass reactor 3 is communicated with air compressor 5 simultaneously, the outlet of quartz glass reactor 3 connects receiving flask 11, is disposed with 200 eye mesh screen the 6 and the 1 eye mesh screens 7, receiving flask 11 tieback quartz glass reactor 3 on discharging route.
Preferably, described quartz glass reactor 3 is many ring syndetons.
Preferably, described quartz glass reactor 3 is 4-10 ring syndeton.
Preferably, described quartz glass reactor 3 is 6 ring syndetons.
Preferably, the position of described receiving flask 11 tieback quartz glass reactor 3 is between 200 eye mesh screen the 6 and the 1 eye mesh screens 7.
Preferably, described tieback mouth is provided with the 2 400 eye mesh screen 9.
Preferably, described the one 400 eye mesh screen 7 is supporting is provided with the first silica wool 11, and described the 2 400 eye mesh screen 9 is supporting is provided with the second silica wool 10.
Compared with prior art, the beneficial effects of the utility model are:
(1) activation efficiency is high, and energy consumption is low, and has further saved energy by fully burn the carbon component of losing in gangue in oxygen enrichment hot environment.
(2) technological process is simple, and operating flexibility is large, and is applicable to the upgrading utilization of all kinds of gangues.
(3) wave absorbing agent cheapness, be easy to get, and further promoted activation efficiency by the cooperative effect of colliery powder and wave absorbing agent in reaction.
(4) whole system operates under positive pressure, can guarantee the security of operation.
(5) air compressor machine drives the automation that has strengthened flow operations.
(6) adopt special quartz glass reactor, greatly increased attaching space and the time of colliery powder and wave absorbing agent.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
Describe embodiment of the present utility model in detail below in conjunction with drawings and Examples.
As shown in Figure 1, the device of a kind of microwave activation gangue of the utility model, comprises loading hopper 1, revolution charger 2, quartz glass reactor 3, magnetron 4, air compressor 5,200 eye mesh screen the 6, the 1 eye mesh screen the 7, the 2 400 eye mesh screens 9, the first silica wool 8, the second silica wool 10, receiving flask 11 and micro-wave oven 12.Quartz glass reactor 3 is many rings syndeton (6 not encircling in figure) as shown in the figure.200 eye mesh screens 6 are welded as a whole with quartz glass reactor 3, are positioned at its material outlet position.The one 400 eye mesh screen the 7 and the 2 400 eye mesh screen 9 is welded as a whole with receiving flask 11.The first silica wool 8 is fixed on the one 400 eye mesh screen 7 surfaces.The second silica wool 10 is fixed on the 2 400 eye mesh screen 9 surfaces.Realize the gas solid separation of colliery powder after high temperature air and activation with the one 400 eye mesh screen the 7 and the 2 400 eye mesh screen 9 and the first silica wool 8 and the second silica wool 10.Rotary feeder is driven by buncher.
Use procedure of the present utility model is:
Wave absorbing agent is added to quartz glass reactor 3 in advance, and coefficient is 0.09.Air compressor 5 passes into circulated air and with microwave, quartz glass reactor 3 is heated, and the inlet pressure of air compressor 5 remains on 0.15MPa(gauge pressure).Gangue joins hopper 1 after being crushed to 70 orders, the hot-air preheating of delivering to quartz glass reactor 3 and being recycled with the flow pneumatic transporting stipulating.High temperature air carries colliery powder with 4kg(colliery powder) flow of/kg (wave absorbing agent) hour fully contacts with scorching hot wave absorbing agent particle after entering quartz glass reactor 3 immediately.Control microwave power, the temperature in quartz glass reactor 3 is remained on to 1200 ℃～1250 ℃, high temperature compressed air recycles.Colliery powder fully burns mistake self carbon component and produces a part of heat in the high temperature compressed air environment circulating, activating required after-heat can directly be supplemented by microwave by the approach of microwave → wave absorbing agent → colliery powder immediately, with wave absorbing agent generation cooperative effect, metal dissolving rate is further improved simultaneously.Colliery powder particle diameter after burning inactivation narrows down to following 200 eye mesh screen the 6 and the 1 eye mesh screens 7 that also pass of 200 orders and is settled down to receiving flask 11, circulated air reenters strength delivery phase after by gas-solid separating devices such as the second silica wool 10 and the 2 400 eye mesh screens 9, and with air compressor 5 supplementary pressures and small part air.Collect the colliery powder after activation, through directly upgrading utilization of acidleach.Colliery powder in receiving flask 11 is through acid leaching extraction Al, Fe, Ti, K, five kinds of metallic elements of Mg.
Claims (7)
1. the device of a microwave activation gangue, comprise the micro-wave oven (12) with magnetron (4), it is characterized in that, in micro-wave oven (12), be provided with quartz glass reactor (3), loading hopper (1) is communicated with quartz glass reactor (3) by revolution charger (2), quartz glass reactor (3) is communicated with air compressor (5) simultaneously, the outlet of quartz glass reactor (3) connects receiving flask (11), on discharging route, be disposed with 200 eye mesh screens (6) and the one 400 eye mesh screen (7), receiving flask (11) tieback quartz glass reactor (3).
2. the device of microwave activation gangue according to claim 1, is characterized in that, described quartz glass reactor (3) is many ring syndetons.
3. the device of microwave activation gangue according to claim 1, is characterized in that, described quartz glass reactor (3) is 4-10 ring syndeton.
4. the device of microwave activation gangue according to claim 1, is characterized in that, described quartz glass reactor (3) is 6 ring syndetons.
5. the device of microwave activation gangue according to claim 1, is characterized in that, the position of described receiving flask (11) tieback quartz glass reactor (3) is positioned between 200 eye mesh screens (6) and the one 400 eye mesh screen (7).
6. the device of microwave activation gangue according to claim 5, is characterized in that, described tieback mouth is provided with the 2 400 eye mesh screen (9).
7. the device of microwave activation gangue according to claim 6, is characterized in that, described the one 400 eye mesh screen (7) is supporting is provided with the first silica wool (11), and described the 2 400 eye mesh screen (9) is supporting is provided with the second silica wool (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320694009.8U CN203591992U (en) | 2013-11-05 | 2013-11-05 | Device for activating coal gangue with microwave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320694009.8U CN203591992U (en) | 2013-11-05 | 2013-11-05 | Device for activating coal gangue with microwave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203591992U true CN203591992U (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320694009.8U Expired - Fee Related CN203591992U (en) | 2013-11-05 | 2013-11-05 | Device for activating coal gangue with microwave |
Country Status (1)
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|---|---|
| CN (1) | CN203591992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356054A (en) * | 2018-02-10 | 2018-08-03 | 中国科学院沈阳应用生态研究所 | A kind of matrixing gangue and preparation method thereof and a kind of seedling medium |
| CN113582763A (en) * | 2021-08-18 | 2021-11-02 | 中科鼎乾(北京)环保发展有限公司 | Method and system for producing high-silicon compound fertilizer by activating coal gangue |
-
2013
- 2013-11-05 CN CN201320694009.8U patent/CN203591992U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356054A (en) * | 2018-02-10 | 2018-08-03 | 中国科学院沈阳应用生态研究所 | A kind of matrixing gangue and preparation method thereof and a kind of seedling medium |
| CN113582763A (en) * | 2021-08-18 | 2021-11-02 | 中科鼎乾(北京)环保发展有限公司 | Method and system for producing high-silicon compound fertilizer by activating coal gangue |
| CN113582763B (en) * | 2021-08-18 | 2023-02-21 | 中科鼎乾(北京)环保发展有限公司 | Method and system for producing high-silicon compound fertilizer by activating coal gangue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20201105 |