CN1868939A - Method of directly treating sludge using high temperature clinker in cement production process - Google Patents
Method of directly treating sludge using high temperature clinker in cement production process Download PDFInfo
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- CN1868939A CN1868939A CN 200610044531 CN200610044531A CN1868939A CN 1868939 A CN1868939 A CN 1868939A CN 200610044531 CN200610044531 CN 200610044531 CN 200610044531 A CN200610044531 A CN 200610044531A CN 1868939 A CN1868939 A CN 1868939A
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Abstract
A process for directly treating sludge by the high-temp clinker in cement production includes such steps as pre-heating the raw materials of cement, calcining in rotary kiln, discharging high-temp clinker, grate cooling, storing in cabin and grinding to become cement. It features that the sludge is directly delivered via sealed pipeline to the high-temp clinker discharging region or grate cooler for treating it.
Description
Technical field
The present invention relates to a kind of direct method for disposing sludge of high temperature chamotte in the cement production process of using, belong to the treatment process of mud, also belong to improved method for production of cement.
Background technology
Mud is the solid precipitation material that is produced by in sewage disposal and the sludge handling process, comprises paper mill sludge, printing and dyeing sludge, chemical fibre mud, electroplating sludge, petrochemical sludge, biological fermentation bacterium slag and sludge from wastewater treatment plant (municipal sludge) etc.Municipal sludge particularly, not only the water content height, perishable, strong odor is arranged, and contain the venomous injurant of difficult degradations such as heavy metal salts such as a large amount of pathogenic bacterias, parasite (ovum) and chromium, mercury, copper, nickel and polychlorobiphenyl, dioxin, radionuclide.The sludge treatment handling problems displays in big and medium-sized cities.
At present, method for sludge treatment has three kinds: (1) sanitary landfill.This method is simple to operate, and investment cost is less, but appropriation of land is serious, if seepage control technique is not enough, will cause potential soil and groundwater pollution.(2) mud is agricultural.The agricultural less investment of mud, the farming consumption is low, and working cost is low, and wherein organic moiety can change into the soil improvement composition, but the agricultural meeting of mud causes the loss of heavy metal contamination, pathogenic agent, hardly degraded organic substance and N, P to surface water and phreatic pollution.(3) sludge incineration.The method for sludge treatment that with the burning is core is a method the most completely, and it can make the whole carbonizations of organism, pathogen kill, can reduce sludge volume to greatest extent, investment is big but its shortcoming is disposal facility, and disposal costs height, organism burn highly toxic substances such as can producing dioxin.Utilize high temperature (1350～1650 ℃) working condition of cement rotary kiln can guarantee that mud fully burns, the alkaline atmosphere of rotary kiln can in and the sour gas that produces of mud, and generate curable hazardous and noxious substances of cement clinker and heavy metal ion, belong to a kind of preferably method.But way is that mud is added the unslaked lime deodorizing usually, and system is done the back and is sent in the kiln as raw material component, in 1350～1650 ℃ high temperature, burn with other raw material, chemical reaction takes place, this method is done in the process and not only atmosphere is polluted in deodorizing, system, and the high and unfavorable popularization of investment cost.
Summary of the invention
The object of the present invention is to provide a kind of direct method for disposing sludge of high temperature chamotte in the cement production process of using, less investment, convenient enforcement, and be convenient to deodorizing, be beneficial to environment protection.
Of the present invention with the direct method for disposing sludge of high temperature chamotte in the cement production process, comprising successively that cement slurry preheating, calcined by rotary kiln, high temperature chamotte incline district and cooling machine, enter the grog warehouse after the cooling, grind into cement, it is characterized in that the direct custody transfer of mud is dosed high temperature chamotte inclines and district or cooling machine.
Mud directly carried dose high temperature chamotte and incline and district or cooling machine, utilize high temperature chamotte to incline and the temperature of district more than 850 ℃ directly with sludge incineration, link is few, and convenient enforcement avoided omnidistance and polluted, and avoids deodorizing, system to do the secondary pollution in the process.
Mud is dosed to high temperature chamotte district or cooling machine to be needed to disperse to dose, convenient fully burning, as can establishing porous breaker plate etc. adding the ingress, be dispersed into mud behind the slice and high temperature chamotte burned together.
Mud can be transported to high temperature chamotte with equipment such as screw rod transmission pumps and incline and district or cooling machine.
High temperature chamotte inclines, and the district be a bigger zone, comprises temperature in 1000～1350 ℃ zone, and cooling machine temperature is in 850～1000 ℃ zone.
Correspondingly with the screw rod transmission pump can establish sealing mud hold-up vessel, the waste gas of sealing mud hold-up vessel headspace be drawn deliver to high temperature chamotte and incline and district or cooling machine, prevent that the ease of waste gas from overflowing and discharging, avoid pollution from exhaust emission together by after-flame.
Mud can be by airtight vehicles drive to airtight sealing mud storage tank, and the waste gas in the hold-up vessel is inclined by air shooter introducing high temperature chamotte and district or cooling machine, and temperature is more than 850 ℃, and it is burned that waste gas enters the high-temperature zone with the rotary kiln secondary air; Mud storage tank bottom connects mud screw rod transmission pump, be delivered to the rotary kiln high temperature chamotte by the mud closed conduit again and incline and the district, after disperseing and high temperature chamotte burned together, and the ash content of mud and grog carry out chemical reaction, enter the grog warehouse after the cooling, grind into cement.
The present invention utilizes the direct disposing sludge of high temperature chamotte in the cement production process, less investment, convenient enforcement; and the burning of the conveying by custody transfer and waste gas; reach the deodorizing requirement, avoided secondary pollution, be beneficial to environment protection; and; the ash content of mud and grog carry out chemical reaction, have not only utilized its heat, have saved coal; also make the resource comprehensive utilization of having got back, turn waste into wealth.
Description of drawings
Fig. 1, the simple and easy synoptic diagram of the inventive method technical process.
Among the figure: 1, cement slurry pre-heating system 2, rotary kiln 3, high temperature chamotte incline and district 4, cooling machine 5, blower fan 6, waste gas pipeline 7, blower fan 8, mud hold-up vessel 9, screw rod transmission pump 10, sludge carrier pipe 11, porous breaker plate.
Embodiment
The present invention is further illustrated below in conjunction with embodiment and accompanying drawing.
As shown in the figure, of the present invention with the direct method for disposing sludge of high temperature chamotte in the cement production process, comprising successively that cement slurry pre-heating system 1, the calcining of rotary kiln 2, high temperature chamotte incline district 3 and cooling machine 4, enter the grog warehouse after the cooling, grind into cement, technical essential of the present invention is mud directly to be carried dose high temperature chamotte and incline and district 3 or cooling machine 4, this regional temperature is at 850～1350 ℃, can be directly with sludge incineration, link is few, convenient enforcement avoided omnidistance and polluted, and avoids deodorizing, system to do the secondary pollution in the process.For mud can fully burn, preferably disperse when dosing to dose, by the porous breaker plate mud is diffused adding into strips.Simple in structure, it can be with screw rod transmission pump 9 mud to be transported to high temperature chamotte to incline and district 3 or cooling machine 4 that the convenient mud of implementing is carried way.The corresponding sealing mud hold-up vessels 9 that are provided with screw rod transmission pump 9, the waste gas of mud is just concentrated the headspace that gathers hold-up vessel 9, the waste gas of hold-up vessel 9 headspaces can be drawn to deliver to high temperature chamotte and incline and district 3 or cooling machine, and is together burned.
Claims (4)
1, a kind of with the direct method for disposing sludge of high temperature chamotte in the cement production process, comprising successively that cement slurry preheating, calcined by rotary kiln, high temperature chamotte incline district and cooling machine, enter the grog warehouse after the cooling, grind into cement, it is characterized in that the direct custody transfer of mud is dosed high temperature chamotte inclines and district or cooling machine.
2, according to claim 1 with the direct method for disposing sludge of high temperature chamotte in the cement production process, it is characterized in that mud doses needs dispersion to high temperature chamotte district or cooling machine and dose.
3, according to claim 1 with the direct method for disposing sludge of high temperature chamotte in the cement production process, it is characterized in that mud inclines to high temperature chamotte with the screw rod transmission pump delivery and district or cooling machine.
4, according to the direct method for disposing sludge of high temperature chamotte in claim 1, the 2 or 3 described usefulness cement production processes, it is characterized in that the corresponding sealing mud hold-up vessel that is provided with, the waste gas of sealing mud hold-up vessel headspace is drawn deliver to high temperature chamotte and incline and district or cooling machine with the screw rod transmission pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100445316A CN100371271C (en) | 2006-06-02 | 2006-06-02 | Method of directly treating sludge using high temperature clinker in cement production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100445316A CN100371271C (en) | 2006-06-02 | 2006-06-02 | Method of directly treating sludge using high temperature clinker in cement production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1868939A true CN1868939A (en) | 2006-11-29 |
| CN100371271C CN100371271C (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100445316A Expired - Fee Related CN100371271C (en) | 2006-06-02 | 2006-06-02 | Method of directly treating sludge using high temperature clinker in cement production process |
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| CN (1) | CN100371271C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886811A (en) * | 2010-05-21 | 2010-11-17 | 尹小林 | Method for coprocessing sludge with high moisture content by novel dry-process rotary kiln |
| CN102153297A (en) * | 2010-11-29 | 2011-08-17 | 赵楠 | Method and equipment for treating town sludge by novel dry-method cement kiln |
| CN102173553A (en) * | 2011-01-07 | 2011-09-07 | 袁文献 | Method for drying and processing sludge by use of cement production waste gas |
| WO2015021700A1 (en) * | 2013-08-13 | 2015-02-19 | Yin Wuji | Method for using waste concrete as cement admixture and cement obtained therefrom |
| CN112429983A (en) * | 2020-11-18 | 2021-03-02 | 长安大学 | Method and equipment for treating water-containing sludge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3542004A1 (en) * | 1985-11-28 | 1987-06-04 | Kloeckner Humboldt Deutz Ag | Drying and combustion of sludges in the firing of mineral materials |
| CN1232457C (en) * | 2001-02-27 | 2005-12-21 | 天津水泥工业设计研究院 | Treating method of industrial and domestic sludge |
| JP2004305909A (en) * | 2003-04-07 | 2004-11-04 | Mitsubishi Materials Corp | Sludge solidifying material using by-product fine powder from concrete lump as main component and manufacturing method for cement clinker |
-
2006
- 2006-06-02 CN CNB2006100445316A patent/CN100371271C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886811A (en) * | 2010-05-21 | 2010-11-17 | 尹小林 | Method for coprocessing sludge with high moisture content by novel dry-process rotary kiln |
| CN102153297A (en) * | 2010-11-29 | 2011-08-17 | 赵楠 | Method and equipment for treating town sludge by novel dry-method cement kiln |
| CN102153297B (en) * | 2010-11-29 | 2013-04-24 | 赵楠 | Method and equipment for treating town sludge by novel dry-method cement kiln |
| CN102173553A (en) * | 2011-01-07 | 2011-09-07 | 袁文献 | Method for drying and processing sludge by use of cement production waste gas |
| CN102173553B (en) * | 2011-01-07 | 2013-08-21 | 袁文献 | Method for drying and processing sludge by use of cement production waste gas |
| WO2015021700A1 (en) * | 2013-08-13 | 2015-02-19 | Yin Wuji | Method for using waste concrete as cement admixture and cement obtained therefrom |
| CN112429983A (en) * | 2020-11-18 | 2021-03-02 | 长安大学 | Method and equipment for treating water-containing sludge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100371271C (en) | 2008-02-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Tianneng Power Technology Co., Ltd. Assignor: Liu Xiangyong Contract fulfillment period: 2009.6.3 to 2014.6.2 contract change Contract record no.: 2009370000090 Denomination of invention: Method of directly treating sludge using high temperature clinker in cement production process Granted publication date: 20080227 License type: Exclusive license Record date: 2009.6.8 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.3 TO 2014.6.2; CHANGE OF CONTRACT Name of requester: SHANDONG TIANNENG POWER SCIENCE CO., LTD. Effective date: 20090608 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20130602 |