CN202038989U - Contaminated soil coordination treatment system in cement kiln - Google Patents
Contaminated soil coordination treatment system in cement kiln Download PDFInfo
- Publication number
- CN202038989U CN202038989U CN2011200796268U CN201120079626U CN202038989U CN 202038989 U CN202038989 U CN 202038989U CN 2011200796268 U CN2011200796268 U CN 2011200796268U CN 201120079626 U CN201120079626 U CN 201120079626U CN 202038989 U CN202038989 U CN 202038989U
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- weigher
- foerderanlage
- grinding machine
- waste gas
- cement kiln
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The utility model relates to a contaminated soil coordination treatment system in a cement kiln, which is characterized in that the contaminated soil coordination treatment system comprises a crusher, a first weigher, a scattering device, a mill, a powder concentrator, a cyclone, a closed reservoir, a second weigher and conveying devices, wherein the conveying device is arranged between the crusher and the first weigher; the conveying device is arranged between the first weigher and the scattering device; the conveying device is arranged between the scattering device and the mill; the conveying device is arranged between the mill and the powder concentrator; a qualified powder product output port of the powder concentrator is connected with the input end of the cyclone; the output end of the cyclone is communicated with the closed reservoir; the conveying device is arranged between the closed reservoir and the second weigher; and the conveying device is arranged between the second weigher and a kiln end precombustion chamber of a cement kiln or an inlet of a decomposing furnace. In the contaminated soil coordination treatment system, safe, innocuous, recycling and energy-saving treatment and utilization is realized.
Description
Technical field
The utility model relates to a kind of cement kiln coprocessing system that pollutes soil.
Background technology
Pollution soil is meant and is subjected to the corrosive medium effect, has changed the soil of original physical and mechanical property and chemical property, generally can be divided into Organic pollutants soil and heavy metal polluted soil two classes.It is Organic pollutants soil that the utility model indication pollutes soil, as the soil (non-heavy metal and radioelement pollute) that is polluted by poisonous agricultural chemicals, grease etc.The soil pollution meeting causes that pollutant load exceeds standard in the crop, and is enriched in human body and the animal by food chain, and the harm human and livestock health causes human cancer and other disease etc.In addition, after soil is polluted, contain the higher contaminated surface soil of pollutant concentration and under wind-force and hydraulic action, enter into atmosphere and water body easily respectively, cause other secondary ecological environment problems such as topsoil, surface water and groundwater pollution and ecosystem degeneration.Along with the raising of people's living standard, ecological and environment protection comes into one's own day by day, and American-European countries all drops into the reparation that a large amount of manpower and materials are carried out contaminated soil.
In the prior art, Japan disposes the method for polluting soil in certain cement mill: add flyash in polluting soil, carry out modified, optimize transportation performance, screening then, the oarse-grained stone in screening back etc. enters the Wingdale stockyard, and small particles of pollution soil is directly sent into the calcining of kiln tail smoke-box.Facts have proved: in the application process,, very easily cause the clinker quality fluctuation, and cause the VOC discharging to exceed standard owing to there is not homogenizing.
The SIGGENTHAL of Switzerland Holcim group disposes the method for polluting soil: directly grind as correction material charging feed abrasive dust polluting soil, for preventing problems such as discharging exceeds standard, kiln tail gas is handled and has directly been adopted charcoal absorption, invest hugely, and the gac that absorption is polluted behind the soil needs further to handle.
Summary of the invention
The purpose of this utility model is to provide a kind of cement kiln coprocessing system that pollutes soil, and this system can handle polluting soil, makes resource obtain comprehensive utilization, does not produce secondary pollution.
To achieve these goals, technical solution adopted in the utility model is: a kind of cement kiln coprocessing system that pollutes soil is characterized in that it comprises crusher, first weigher, breaks up device, grinding machine, powder separating machine, whirlwind tube, airtight bank, second weigher, e Foerderanlage; Be provided with e Foerderanlage between the crusher and first weigher; First weigher and break up and be provided with e Foerderanlage between the device; Break up between device and the grinding machine and be provided with e Foerderanlage; Be provided with e Foerderanlage between grinding machine and the powder separating machine; The underproof powder delivery port of powder separating machine is linked to each other with the input aperture of grinding machine by e Foerderanlage, and the qualified powder product delivery port of powder separating machine links to each other with the input terminus of whirlwind tube, and the output terminal of whirlwind tube is connected with airtight bank; Be provided with e Foerderanlage between the airtight bank and second weigher; Be provided with e Foerderanlage between the kiln tail settling chamber of second weigher and cement kiln or the input aperture of decomposing furnace.
Airtight bank is connected with total waste gas airduct of grinding machine by cleaning shaft, and total waste gas airduct is connected with decomposing furnace.
The waste gas delivery port of grinding machine is connected with total waste gas airduct, connects a waste gas on total waste gas airduct and is in charge of, and waste gas is in charge of with tertiary-air pipe and is connected, and tertiary-air pipe is connected with the thermal source input aperture of grinding machine.
Described grinding machine is ball milling or Vertical Mill.
The beneficial effects of the utility model are:
1, adopts said system, can carry out processing in large-scale, high-efficiency to polluting soil, non-secondary pollution, the waste that need not handle once more.
2, system's negative pressure operation (grinding system itself is exactly a negative pressure) does not exist poison gas to leak.
3, pollute soil and go into the kiln calcining as correction material and do not efflux, realize comprehensive utilization of resources.
4, pollute the firing system cooperation of soil and rotary kiln, do not have independent flare system, the risk that does not have discharging to exceed standard.Poison gas is gone into calcined by rotary kiln with oven dry gas, under decomposing furnace highly basic hot environment, does not produce secondary pollutions such as Dioxins, furans.
5, drying system (being grinding machine) operating temperature is low, and product temperature is low, and system's thermosteresis is little, energy efficient.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of cement kiln coprocessing system that pollutes soil, it comprises crusher, first weigher, breaks up device (or claiming beater), grinding machine, powder separating machine, whirlwind tube, airtight bank, second weigher, e Foerderanlage; Be provided with e Foerderanlage (inlet of crusher receives and pollutes soil, and the pollution soil after crusher in crushing is sent into the metering of first weigher by e Foerderanlage) between the crusher and first weigher; First weigher and breaing up is provided with e Foerderanlage (the pollution soil after the metering of first weigher is sent into to break up in the device by e Foerderanlage and broken up) between the device; Break up and be provided with e Foerderanlage (the pollution soil of breaing up after breaing up in the device is sent into grinding oven dry in the grinding machine) between device and the grinding machine; Be provided with e Foerderanlage (powder after the grinding oven dry is sent into and selected powder in the powder separating machine, and the underproof powder of powder separating machine is back in the grinding machine by e Foerderanlage) between grinding machine and the powder separating machine; The underproof powder delivery port of powder separating machine is linked to each other with the input aperture of grinding machine by e Foerderanlage, and the qualified powder product delivery port of powder separating machine links to each other with the input terminus of whirlwind tube, and the output terminal of whirlwind tube is connected with airtight bank (being provided with sealed door); Be provided with e Foerderanlage (the qualified powder product in the airtight bank is sent into the metering of second weigher by e Foerderanlage) between the airtight bank and second weigher; Be provided with e Foerderanlage between the kiln tail settling chamber of second weigher and cement kiln (rotary kiln) or the input aperture of decomposing furnace.
Airtight bank is connected with total waste gas airduct of grinding machine by cleaning shaft, total waste gas airduct be connected with decomposing furnace (airtight bank is established total waste gas airduct that cleaning shaft is connected to grinding machine, total waste gas airduct access decomposing furnace).
The waste gas delivery port of grinding machine is connected with total waste gas airduct, connecting a waste gas on total waste gas airduct is in charge of, waste gas is in charge of with tertiary-air pipe and is connected, tertiary-air pipe is connected with the thermal source input aperture of grinding machine (waste gas that grinding machine produces mixes (hot blast) at the bistrique that blower fan traction lower section is back to cement kiln with the high temperature tertiary air, enters grinding machine).
Described grinding machine is ball milling or Vertical Mill.
It is Organic pollutants soil that the utility model indication pollutes soil, as the soil (non-heavy metal and radioelement pollute) that is polluted by poisonous agricultural chemicals, grease etc.
A kind of cement kiln cooperative processing method that pollutes soil, it comprises the steps:
1) earlier carries out fragmentation, homogenizing, make and pollute the grogs footpath,, obtain the pollution soil after the fragmentation to satisfy the grinding drying requirement to＜100mm to polluting soil;
2) with after the metering of the soil of the pollution after the fragmentation, breaing up, carry out the grinding oven dry through grinding machine; Select powder through powder separating machine then, (80 μ m tail over less than 10% qualified powder product, water content drops to less than 1wt%) enter airtight bank through the whirlwind tube, airtight bank is established total waste gas airduct (dedusting) that cleaning shaft is connected to grinding machine, and total waste gas airduct inserts decomposing furnace; Underproof powder after powder separating machine selects powder is back in the grinding machine;
3) waste gas of grinding machine generation mixes (hot blast) at the bistrique that blower fan traction lower section is back to cement kiln with the high temperature tertiary air, enters grinding machine; Another part of the waste gas that grinding machine produces enters decomposing furnace calcining, the detoxification of cement kiln;
4) qualified powder product in the airtight bank through online composition detection, and is gone into the kiln raw material and is carried out online proportioning, is delivered to kiln tail settling chamber or decomposing furnace after metering, enters the calcining of cement kiln (rotary kiln) system as correction material, forms grog.
Claims (4)
1. cement kiln coprocessing system that pollutes soil is characterized in that it comprises crusher, first weigher, breaks up device, grinding machine, powder separating machine, whirlwind tube, airtight bank, second weigher, e Foerderanlage; Be provided with e Foerderanlage between the crusher and first weigher; First weigher and break up and be provided with e Foerderanlage between the device; Break up between device and the grinding machine and be provided with e Foerderanlage; Be provided with e Foerderanlage between grinding machine and the powder separating machine; The underproof powder delivery port of powder separating machine is linked to each other with the input aperture of grinding machine by e Foerderanlage, and the qualified powder product delivery port of powder separating machine links to each other with the input terminus of whirlwind tube, and the output terminal of whirlwind tube is connected with airtight bank; Be provided with e Foerderanlage between the airtight bank and second weigher; Be provided with e Foerderanlage between the kiln tail settling chamber of second weigher and cement kiln or the input aperture of decomposing furnace.
2. a kind of cement kiln coprocessing system that pollutes soil according to claim 1, it is characterized in that: airtight bank is connected with total waste gas airduct of grinding machine by cleaning shaft, and total waste gas airduct is connected with decomposing furnace.
3. a kind of cement kiln coprocessing system that pollutes soil according to claim 1, it is characterized in that: the waste gas delivery port of grinding machine is connected with total waste gas airduct, connecting a waste gas on total waste gas airduct is in charge of, waste gas is in charge of with tertiary-air pipe and is connected, and tertiary-air pipe is connected with the thermal source input aperture of grinding machine.
4. a kind of cement kiln coprocessing system that pollutes soil according to claim 1, it is characterized in that: described grinding machine is ball milling or Vertical Mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200796268U CN202038989U (en) | 2011-03-24 | 2011-03-24 | Contaminated soil coordination treatment system in cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200796268U CN202038989U (en) | 2011-03-24 | 2011-03-24 | Contaminated soil coordination treatment system in cement kiln |
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| Publication Number | Publication Date |
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| CN202038989U true CN202038989U (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200796268U Expired - Lifetime CN202038989U (en) | 2011-03-24 | 2011-03-24 | Contaminated soil coordination treatment system in cement kiln |
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| CN (1) | CN202038989U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489379A (en) * | 2011-12-20 | 2012-06-13 | 鞍钢集团矿业公司 | Three-stage crushing, dry vertical milling and dry classifying process |
| CN106986566A (en) * | 2017-06-02 | 2017-07-28 | 天津振兴水泥有限公司 | A kind of disposing technique of the Polluted Soil containing cyanogen |
| CN107790480A (en) * | 2017-10-26 | 2018-03-13 | 天津中材工程研究中心有限公司 | It is a kind of to utilize the method for transforming cement kiln processing Polluted Soil |
| CN114453113A (en) * | 2020-11-10 | 2022-05-10 | 四川隆盛欣建筑工程有限公司 | Preparation system and preparation method of alternative fuel for cement kiln |
-
2011
- 2011-03-24 CN CN2011200796268U patent/CN202038989U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489379A (en) * | 2011-12-20 | 2012-06-13 | 鞍钢集团矿业公司 | Three-stage crushing, dry vertical milling and dry classifying process |
| CN106986566A (en) * | 2017-06-02 | 2017-07-28 | 天津振兴水泥有限公司 | A kind of disposing technique of the Polluted Soil containing cyanogen |
| CN107790480A (en) * | 2017-10-26 | 2018-03-13 | 天津中材工程研究中心有限公司 | It is a kind of to utilize the method for transforming cement kiln processing Polluted Soil |
| CN114453113A (en) * | 2020-11-10 | 2022-05-10 | 四川隆盛欣建筑工程有限公司 | Preparation system and preparation method of alternative fuel for cement kiln |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
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| CX01 | Expiry of patent term |