CN101528614B - Method of disposing of organic waste of high water content and disposal apparatus therefor - Google Patents
Method of disposing of organic waste of high water content and disposal apparatus therefor Download PDFInfo
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- CN101528614B CN101528614B CN2007800401039A CN200780040103A CN101528614B CN 101528614 B CN101528614 B CN 101528614B CN 2007800401039 A CN2007800401039 A CN 2007800401039A CN 200780040103 A CN200780040103 A CN 200780040103A CN 101528614 B CN101528614 B CN 101528614B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/4407—Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel ; Use of particular energy sources, e.g. waste hot gases from other processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/02—Heating arrangements using combustion heating
- F26B23/028—Heating arrangements using combustion heating using solid fuel; burning the dried product
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- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2290/00—Organisational aspects of production methods, equipment or plants
- C04B2290/20—Integrated combined plants or devices, e.g. combined foundry and concrete plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/201—Waste heat recuperation using the heat in association with another installation with an industrial furnace
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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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
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Sustainable Development (AREA)
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- Hydrology & Water Resources (AREA)
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- Materials Engineering (AREA)
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- Treatment Of Sludge (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention discloses a method of disposing of an organic waste of high water content, and disposal apparatus therefor, with which effective utilization of the organic waste of high water content as fuel can be attained by drying the same with the use of cement calcination equipment, and with which the operation efficiency of cement calcination equipment can be enhanced without the danger of influences on the operation of the cement calcination equipment. The method of disposing of an organic waste of high water content comprises the steps of carrying out by means of heat exchanger (22) a heat exchange between superheated steam and exhaust gas separated by cyclone (2b) of suspension preheater (2) and not only introducing the superheated steam of high temperature after the heat exchange in dryer (23) to thereby dry any organic sludge into a dried organic waste but also carrying out once more by means of the heat exchanger (22) a heat exchange of the superheated steam after the drying to thereby attain circulatory use thereof in the drying of organic sludge; and feeding the resultant dried organic sludge to calciner (3) as fuel and combusting the same.
Description
Technical field
The present invention relates to the processing method and the treating apparatus of high-moisture percentage organic waste, more specifically, relate to by using cement calcination equipment that the high-moisture percentage organic waste is carried out drying, the fuel of this dried organic waste as cement calcination equipment effectively can be utilized, although and utilized the gas of extracting out in the cement calcination equipment, can be not yet the running of cement calcination equipment not be caused harmful effect and further improves the processing method and the treating apparatus of high-moisture percentage organic waste of the running efficiency of cement calcination equipment.
The application require based on November 6th, 2006 spy in Japanese publication be willing to 2006-300605 number priority, quote its content at this.
Background technology
In the past, in the rotary kiln of cement calcination equipment, combustible waste materials such as the damaged tire in the use organic waste, waste plastics are the material of part of fuel instead.
In addition, recently, also implement by will finally burning but the high-moisture percentage organic waste that contains large quantity of moisture directly drops into the method that rotary kiln carries out burning disposal.
As this high-moisture percentage organic waste, can enumerate organic-aqueous (dehydration) mud such as sewage sludge as an example, propose this water-containing sludge is not implemented drying, added preliminary treatment such as additive and directly import the kiln portion of rotary kiln or the method for sludge treatment that roaster burns (patent documentation 1).
Usually, in the organic-aqueous mud, moisture and organic matter account for major part, and therefore, the ash content that generates as burning residue is a minute quantity.Therefore, even organic-aqueous mud is directly dropped under the situation of rotary kiln, also can not influence the composition of clinker and in rotary kiln, carry out burning disposal.
And, organic-aqueous mud is directly imported in the method that rotary kiln burns above-mentioned, there are the following problems: owing to the evaporation along with the moisture in the water-containing sludge, the material temperature of rotary kiln kiln portion reduces, the sensible heat that raw material had in suspended preheater, roaster behind heating and the decarbonate reduces or cement raw material sinters the temperature reduction etc. of the zone (kiln clinkering zone) of grog shape into, and the clinker of the cement calcination equipment ability of burning till significantly reduces.And heat, the power consumption of the unit grog when clinker burns till increase, and therefore, might be difficult to turn round economically etc.
Therefore, in order to reduce of the influence of this high-moisture percentage organic waste to the cement calcination equipment running, also carrying out following method: be used to directly carry out processing, and dried organic waste acted as a fuel effectively utilize (patent documentation 2) with the castoff high in containing water drying from bleeding of the chamotte cooler of cement calcination equipment.
Fig. 3 is the schematic diagram of cement making equipment that the drying process device of existing high-moisture percentage organic waste has been set up in expression, is to utilize the exhaust of cement calcination equipment the high-moisture percentage organic waste to be carried out the example of dry device.
Among the figure, 1 is rotary kiln, and 2 is suspended preheater, 2a～2d is the cyclone dust collectors at different levels in the suspended preheater 2, and 3 is roaster, and 4 is chamotte cooler, 5 is cottrell, and 6 is air exhauster, and 7 is exhaust chimney, 8a～8c is the air-conditioning fan of chamotte cooler 4,9 is the air exhauster (IDF) of the exhaust of suction suspended preheater 2, and 10 is the auxiliary air pipe of roaster 3, and 11 is the blast pipe of chamotte cooler 4,12 is the blast pipe of suspended preheater 2, and 13 is the pipeline to suspended preheater 2 base feeds.
In addition, 14 is drying process device, by constituting as the lower part: exhaust tube 15, the part of the exhaust that will discharge from chamotte cooler 4 is extracted out; Drying machine 16 uses the exhaust of this extraction that the high-moisture percentage organic waste is carried out drying; Dust-precipitator 17 is collected dust from the exhaust that contains this dried organic waste; And blast pipe 18 and exhaust importing fan 19, be used for the cooling air of the exhaust after gathering dust as chamotte cooler 4 utilized again.
The dry organic waste that obtains in this drying process device 14 is used effectively as the fuel of cement calcination equipment.
And, containing a large amount of foul smell in the dried exhaust becomes to grade, but by utilizing with auxiliary air in the chamotte cooler that this exhaust is imported cement calcination equipment as the high temperature chamotte tempering air and with the fuel combustion of cooled exhaust as rotary kiln or roaster, the above-mentioned foul smell combustion decomposition fully that becomes to grade.
Therefore, become to grade, also do not need to remove the special odor removal that the foul smell in the exhaust becomes to grade even contain a large amount of foul smell in the exhaust.
In addition, as the drying device of the high-moisture percentage organic waste of the convection drying method that does not adopt above-mentioned use high-temperature gas, proposed to use the drying device of the high-moisture percentage organic waste of superheated steam round-robin method to be attached on the cement calcination equipment and the device (patent documentation 3) that forms.
The drying device of this high-moisture percentage organic waste is as lower device: the cyclic drying powder of the dried mud of mixed airflow and stir and regulate moisture in the sludge cake that is formed by the high-moisture percentage organic waste, after pulverizing in the pulverizer of this mixed powder in drying machine, make it at the drying tube inner drying, then, gather dust with cyclone dust collectors and obtain xeraphium.Resulting xeraphium is with in a certain amount of rotary kiln that is blown into cement calcination equipment, burns till with the part of fuel as clinker and utilizes.
In this device, adopt following method: with the exhaust that drying was produced (water vapour) of sludge cake as the dry thermal medium of using, above-mentioned exhaust is carried out the high-temperature portion of the exhaust heating part of indirect as cement calcination equipment, above-mentioned exhaust is imported this exhaust heating part heats, deodorizing, make this heating, the part of the exhaust after the deodorizing is circulated to above-mentioned pulverizer, and when releasing to the exhaust that increases outside the system, make heating, the remainder of the exhaust after the deodorizing carries out heat exchange with the exhaust from the cyclone dust collectors of described drying machine in heat exchanger, preheating is carried out in the exhaust from cyclone dust collectors.
In addition, as the processing method of the discarded object different, proposed to use the high-temperature gas that utilizes in the cement calcination equipment to handle the cement manufacturing method (patent documentation 4) of the discarded object turning sludge into fuel system of halogen-containing discarded object with the high-moisture percentage organic waste.
In this processing method, the high-temperature gas that utilization is extracted out from the suspended preheater of cement calcination equipment, by indirect halogen-containing castoff heat is decomposed, the halogen compounds that produces is removed, on the other hand, effectively utilize having removed the fuel gas of halogen compounds and residue fuel as cement calcination equipment.
In this discarded object turning sludge into fuel system, use the high-temperature gas of extracting out from suspended preheater as thermal source.
Usually, as the high-temperature gas in the cement calcination equipment, the high-temperature gas that the high temperature air extracted out from chamotte cooler is arranged, extract out from the kiln afterbody of rotary kiln, but when as above-mentioned discarded object turning sludge into fuel system, using the high-temperature gas extracted out from suspended preheater as thermal source, influence to the cement calcination equipment running is less, can effectively utilize the thermal source of cement calcination equipment.
Patent documentation 1: Japanese kokai publication hei 8-276199 communique
Patent documentation 2: Japanese kokai publication sho 63-151650 communique
Patent documentation 3: TOHKEMY 2002-273492 communique
Patent documentation 4: TOHKEMY 2006-206386 communique
Summary of the invention
And, utilizing directly the high-moisture percentage organic waste being carried out in the dry method of above-mentioned patent documentation 2 from bleeding of chamotte cooler, there are the following problems: owing to contain a large amount of water vapours in the dried exhaust, therefore, when handling with chamotte cooler, the water vapour that contains in this exhaust is imported in rotary kiln or the roaster, and consequently being used to the required High Temperature Gas scale of construction of the unit's of burning till clinker (unit gas consumption) increases.
The amount of burning till that the increase of this unit gas consumption brings clinker may for the running of cement calcination equipment reduces and burns till with harmful effects such as heat (specific heat consumption) increases.
The minimizing of this clinker amount of burning till is compared with the existing situation of directly putting into rotary kiln kiln afterbody with the increase of specific heat consumption, though the degree of influence to running rests on 20～40%, but the harmful effect to running is still very big, might can't obtain the manufacture of cement amount of needs etc. along with the increase of high-moisture percentage organic waste processing.
In addition, in the drying means of patent documentation 3, because the high-temperature portion of utilizing the cement calcination equipment main body is as the heating part (heat exchange department) that the thermal medium that is used for drying is heated, therefore, can only limit to the zone of suspended preheater bottom and the high-temperature portion zone of chamotte cooler upstream portion etc. as the high-temperature portion that the heating part utilizes, for example, when selecting this high-temperature portion zone as the heating part, thermal medium can seize cement calcination equipment gas inside, sensible heat that heating raw had in a large number.Therefore, existence may make the specific heat consumption that the grog of cement calcination equipment burns till increase and cause that grog burns till the problem that ability reduces.
Equally, the minimizing of the amount of burning till of the clinker of cement calcination equipment is compared with the situation of directly putting into rotary kiln kiln afterbody with the increase of specific heat consumption, though the minimizing of the grog amount of burning till rests on 40～50%, the increase of specific heat consumption reaches 80%.Promptly, in this method, most of drying is to obtain by the useful heat that seizes in the cement calcination equipment with thermal source, therefore, utilize the method for the exhaust etc. of cement calcination equipment to compare with other, exist the heat exhaustion that not only makes in the cement calcination equipment significantly to increase but also the problem of the manufacture of cement amount that the increase that may handle along with the high-moisture percentage organic waste and can't obtaining needs.
In addition, in the discarded object turning sludge into fuel system of patent documentation 4, there are the following problems: for the thermal decomposition of carrying out halogen-containing discarded object with separate, halogen-containing discarded object need be heated to the highest 650 ℃ high temperature, therefore, importing need be made the temperature of high-temperature gas of the indirect machine of this halogen-containing discarded object generation thermal decomposition be set at higher temperature.
In addition, owing to be indirect, therefore heat output is also insufficient, exhaust after the heat exchange is got back in the suspended preheater under temperature still keeps the state of high temperature, particularly the situation of collaborating in the blast pipe of suspended preheater in the exhaust that makes the condition of high temperature is inferior, the delivery temperature of suspended preheater raises, and might cause that the gas processing capability reduction of air exhauster (IDF) and the production capacity of cement calcination equipment reduce.
In addition, because the high-temperature gas of extracting out does not utilize its sensible heat again and discharges from suspended preheater, therefore, the specific heat consumption that cement burns till also increases.
Like this, in the processing method or system of patent documentation 2～4, when using cement calcination equipment that the high-moisture percentage organic waste is burnt processing, might cause harmful effect to the running of cement calcination equipment.Therefore, wish to have a kind of processing method of high-moisture percentage organic waste, its dry organic waste that dry high-moisture percentage organic waste can be obtained effectively utilizes as the fuel of cement calcination equipment, even and utilize the thermal source that takes out from cement calcination equipment to carry out drying, do not influence the running of cement calcination equipment fully yet.
The present invention finishes in order to address the above problem, its purpose is to provide a kind of processing method and treating apparatus of high-moisture percentage organic waste, in the described processing method, by using cement calcination equipment that the high-moisture percentage organic waste as the sewage sludge is carried out drying, the fuel of this dried organic waste as cement calcination equipment effectively can be utilized, and can not influence the running of cement calcination equipment and further improve the running efficiency of cement calcination equipment.
The inventor furthers investigate in order to address the above problem repeatedly, found that, if use the high-moisture percentage organic waste is carried out drying and forms dry organic waste with the thermal medium that has carried out heat exchange from the isolated high-temperature gas of cement calcination equipment, thereby and to carry out heat exchange recycling in the drying of high-moisture percentage organic waste with high-temperature gas once more to make this dried thermal medium, and should the drying organic waste supply to cement calcination equipment or burner and make its burning, then can will should the drying organic waste effectively utilize as the fuel of cement calcination equipment, and the residue after the burning can be used as the clinker raw material, and can not cause harmful effect, thereby finished the present invention to the running and the cement quality of cement calcination equipment.
Promptly, the processing method of high-moisture percentage organic waste of the present invention, be used to use cement calcination equipment that the high-moisture percentage organic waste is carried out turning sludge into fuel and burning processing, it is characterized in that, possess: drying process, use and the thermal medium that has carried out heat exchange from the isolated high-temperature gas of described cement calcination equipment, described high-moisture percentage organic waste is carried out drying, form dry organic waste, and it is make this dried thermal medium carry out heat exchange with described high-temperature gas once more, thereby recycling in the drying of described high-moisture percentage organic waste; With the burning operation, should the drying organic waste supply to described cement calcination equipment or burner and make its burning.
In the processing method of this high-moisture percentage organic waste, with the thermal medium that has carried out heat exchange from the isolated high-temperature gas of cement calcination equipment the high-moisture percentage organic waste is carried out drying and form dry organic waste owing to using, thereby exhaust that should drying produced only is water vapour, therefore, even in cement calcination equipment, handle this exhaust, also do not influence the running of cement calcination equipment, and dry organic waste is used effectively as the fuel of cement calcination equipment.
In addition, thereby to carry out heat exchange recycling in the drying of high-moisture percentage organic waste with high-temperature gas once more owing to make dried thermal medium, and therefore, thermal medium efficiently and is effectively utilized again, does not cause waste.
The processing method of high-moisture percentage organic waste of the present invention is characterised in that, described burning operation is described dry organic waste is supplied to more than 1 place in rotary kiln, roaster and the suspended preheater of described cement calcination equipment and to make the operation of its burning.
In the processing method of this high-moisture percentage organic waste, owing to making its burning more than 1 place in the rotary kiln, roaster and the suspended preheater that dry organic waste are supplied to cement calcination equipment, therefore, the dry organic waste that obtains can be burnt till with fuel as clinker and effectively utilize, and owing to carried out drying, thereby the running of cement calcination equipment is not influenced.
The processing method of high-moisture percentage organic waste of the present invention is characterised in that, described high-temperature gas is any 1 high-temperature gas of bleeding more than the position and obtaining from the cyclone dust collectors gas vent at different levels portion of the suspended preheater of described cement calcination equipment, and described dried thermal medium is for by carrying out the superheated steam that drying produces to described high-moisture percentage organic waste.
In the processing method of this high-moisture percentage organic waste, by using any 1 high-temperature gas of obtaining of bleeding more than the position from the cyclone dust collectors gas vent at different levels portion of the suspended preheater of cement calcination equipment as from the isolated high-temperature gas of cement calcination equipment, the throughput of cement burning apparatus is increased, thereby the clinker that can improve cement burning apparatus burn till ability.
In addition, by using the high-moisture percentage organic waste is carried out superheated steam that drying produces as dried thermal medium, the thermal medium that directly uses in drying being handled be controlled at Min., and to the also not influence of running of cement calcination equipment.
The processing method of high-moisture percentage organic waste of the present invention is characterised in that, described high-temperature gas is for the exhaust of discharging from the suspended preheater of described cement calcination equipment, from any a kind or 2 kinds of bleeding of extracting out of the chamotte cooler of described cement calcination equipment, and described dried thermal medium is for by carrying out the superheated steam that drying produces to described high-moisture percentage organic waste.
In the processing method of this high-moisture percentage organic waste, by use the exhaust of discharging from the suspended preheater of cement calcination equipment, from any a kind or 2 kinds of conducts of bleeding of extracting out of the chamotte cooler of cement calcination equipment from the isolated high-temperature gas of cement calcination equipment, eliminated because the harmful effect that utilizes high-temperature gas that the running of cement calcination equipment is caused.
In addition, by using the high-moisture percentage organic waste is carried out superheated steam that drying produces as dried thermal medium, the gas flow that uses in drying being handled be controlled at Min., and to the also not influence of running of cement calcination equipment.
The processing method of high-moisture percentage organic waste of the present invention is characterised in that, after a part of extracting described superheated steam out is implemented deodorizing and handled, it imported described cement calcination equipment.
In the processing method of this high-moisture percentage organic waste, implement after deodorizing is handled it to be imported cement calcination equipment by a part of extracting superheated steam out, for example import the situation of suspended preheater gas extraction system etc., can not produce the influence that importing causes cement calcination equipment running fully, and the clinker that is brought by bleeding of described cyclone dust collectors gas vent at different levels portion when obtaining the cement calcination equipment running burns till the result that the raising of ability shows significantly.
The processing method of high-moisture percentage organic waste of the present invention is characterised in that, the part of described superheated steam is directly imported the position more than 800 ℃ of described cement calcination equipment.
In the processing method of this high-moisture percentage organic waste, directly import the position more than 800 ℃ of cement calcination equipment by a part with superheated steam, the superheated steam that imports only is the dry amount that is produced, influence to the cement calcination equipment running is minimum, burn till ability by utilizing bleeding of described cyclone dust collectors gas vent at different levels portion to improve clinker, can fully eliminate above-mentioned influence.
The treating apparatus of high-moisture percentage organic waste of the present invention, be used to use cement calcination equipment that the high-moisture percentage organic waste is carried out turning sludge into fuel and burning processing, it is characterized in that, possess: heat-exchange device, carrying out heat exchange between isolated high-temperature gas of described cement calcination equipment and thermal medium; Drying process device uses this thermal medium that has carried out heat exchange that described high-moisture percentage organic waste is carried out drying, forms dry organic waste; Circulation line circulates this dried thermal medium between described heat-exchange device and described drying process device; And feeding pipe, described dry organic waste is supplied to described cement calcination equipment or burner.
In the treating apparatus of this high-moisture percentage organic waste,, carrying out heat exchange between isolated high-temperature gas and the thermal medium from cement calcination equipment by heat-exchange device; By drying process device, use this thermal medium that has carried out heat exchange that the high-moisture percentage organic waste is carried out drying, form dry organic waste; By feeding pipe, should the drying organic waste supply to cement calcination equipment or burner and the processing of burning.
Thus, can not influence the running of cement calcination equipment, the ability of burning till of clinker improves.
And, by effectively utilizing the dry organic waste that the sensible heat that exhaust had of discharging from cement burning apparatus obtains, effectively utilized as the fuel of cement calcination equipment.
In addition,, make dried thermal medium carry out heat exchange with high-temperature gas once more by circulation line, thus recycling in the drying of high-moisture percentage organic waste, thus, can efficiently and effectively utilize again thermal medium.
The treating apparatus of high-moisture percentage organic waste of the present invention is characterised in that the deodorizing treating apparatus of deodorizing processing is extracted and the superheated steam of this extraction is implemented to a part that possesses the superheated steam that will produce in the described drying device out.
In the treating apparatus of this high-moisture percentage organic waste, by the deodorizing treating apparatus, the part of the superheated steam that produces in the drying device is extracted out, and the superheated steam of this extraction is implemented deodorizing handle.Thus, can only the high-temperature water vapor of having removed the foul smell composition be supplied in the suspended preheater gas extraction system etc. of cement calcination equipment and handle, not produce and handle the influence that brings the cement calcination equipment running.
The treating apparatus of high-moisture percentage organic waste of the present invention is characterised in that the direct position more than 800 ℃ that imports described cement calcination equipment of the superheated steam that a part that possesses the superheated steam that will produce in the described drying device is extracted out, also will be extracted out is carried out the deodorizing of deodorizing processing and handled pipeline.
In the treating apparatus of this high-moisture percentage organic waste, handle pipeline by deodorizing, the part of the superheated steam that produces in the drying device extracted out and it is directly imported the position more than 800 ℃ of cement calcination equipment and the deodorizing of the superheated steam extracted out is handled, thus, although the deodorizing that is simple superheated steam is handled, also can handle the high-moisture percentage organic waste effectively.
The treating apparatus of high-moisture percentage organic waste of the present invention is characterised in that, possesses any 1 isolated the bleeding more than the position from the cyclone dust collectors gas vent at different levels portion of the suspended preheater of described cement calcination equipment is imported the pipeline of described heat-exchange device as high-temperature gas.
In the treating apparatus of this high-moisture percentage organic waste, by high-temperature gas being imported the pipeline of heat-exchange device, isolate high-temperature gas more than the position for any 1 from the cyclone dust collectors gas vent at different levels portion of the suspended preheater of cement calcination equipment, thus, can realize the raising of the draught capacity of cement calcination equipment, therefore, can not be that the clinker of principal element burns till ability etc. and causes harmful effect to work, can handle the high-moisture percentage organic waste effectively with the treating apparatus of this high-moisture percentage organic waste.
The treating apparatus of high-moisture percentage organic waste of the present invention is characterised in that, possess with the exhaust of the suspended preheater of described cement calcination equipment as high-temperature gas import described heat-exchange device pipeline, will import any 1 or 2 of pipeline of described heat-exchange device from bleeding of extracting out of the chamotte cooler of described cement calcination equipment as high-temperature gas.
In the treating apparatus of this high-moisture percentage organic waste, the pipeline of heat-exchange device will be imported by possessing from the isolated exhaust of suspended preheater as high-temperature gas, to import any 1 or 2 of pipeline of heat-exchange device from bleeding of extracting out of chamotte cooler as high-temperature gas, can will utilize as high-temperature gas from the isolated exhaust of suspended preheater or from bleeding of chamotte cooler extraction, and, drying by the high-temperature gas after the heat exchange being used for once more cement raw material etc., can carry out efficient and effectively utilization to it, and can not influence the running of cement calcination equipment.
The invention effect
Processing method according to high-moisture percentage organic waste of the present invention, with the thermal medium that has carried out heat exchange from the isolated high-temperature gas of cement calcination equipment the high-moisture percentage organic waste is carried out drying and form dry organic waste owing to using, therefore, the running of cement calcination equipment can not influenced and the dry organic waste that will obtain effectively utilizes as the fuel of cement calcination equipment.
In addition, recycling in the drying of high-moisture percentage organic waste owing to make dried thermal medium carry out heat exchange with high-temperature gas once more, therefore, can efficiently and effectively utilize again thermal medium.
According to the treating apparatus of high-moisture percentage organic waste of the present invention, it possesses: heat-exchange device, carrying out heat exchange between isolated high-temperature gas and the thermal medium from cement calcination equipment; Drying process device uses this thermal medium that has carried out heat exchange that described high-moisture percentage organic waste is carried out drying, forms dry organic waste; Circulation line circulates this dried thermal medium between described heat-exchange device and described drying process device; And feeding pipe, described dry organic waste is supplied to described cement calcination equipment or burner, therefore, can effectively utilize the sensible heat that exhaust had of discharging, and can not influence the running of cement calcination equipment and improve the ability of burning till of the clinker of cement calcination equipment from cement calcination equipment.
In addition, recycling in the drying of high-moisture percentage organic waste owing to make dried thermal medium carry out heat exchange with high-temperature gas once more, therefore, can efficiently and effectively utilize again thermal medium.
Description of drawings
Fig. 1 is the schematic diagram of cement calcination equipment that the organic sludge treating apparatus of first embodiment of the invention has been set up in expression.
Fig. 2 is the schematic diagram of cement calcination equipment that the organic sludge treating apparatus of second embodiment of the invention has been set up in expression.
Fig. 3 is the schematic diagram of cement making equipment that the drying process device of existing high-moisture percentage organic waste has been set up in expression.
Label declaration
1 rotary kiln
2 suspended preheaters
2a～2d cyclone dust collectors
3 roasters
4 chamotte coolers
5 cottrells
6 air exhausters
7 exhaust chimneys
8a～8c air-conditioning fan
9 air exhausters (IDF)
10 auxiliary air pipes
11 blast pipes
12 blast pipes
13 raw material supplying pipelines
The treating apparatus of 21 organic sludges
22 heat exchangers
23 drying machines
24 deodorisers
25 hoppers
26 high-temperature gas exhaust tubes
27 blast pipes
28 superheated steam pipelines
29 superheated steam pipelines
30 organic sludge feeding pipes
31 feeding pipes
The treating apparatus of 41 organic sludges
42 high-temperature gas exhaust pipes
43 high-temperature gas gas exhaust pipings
The specific embodiment
Based on accompanying drawing the processing method of high-moisture percentage organic waste of the present invention and the preferred forms for the treatment of apparatus are described.
In addition, present embodiment is specify of carrying out in order to understand purport of the present invention better, short of particularly pointing out, and the present invention is not limited.
First embodiment
Fig. 1 is the schematic diagram of cement calcination equipment that the high-moisture percentage organic refuse treatment appts of first embodiment of the invention has been set up in expression, be to use organic sludge as the high-moisture percentage organic waste, be used to high-temperature gas from the exhaust of cement calcination equipment or extraction and this organic sludge is carried out drying and make its turning sludge into fuel and use cement calcination equipment the burn example of the treating apparatus handled of the dry organic sludge that obtains.
Among the figure, 21 is the treating apparatus of organic sludge, by constituting as the lower part: and heat exchanger (heat-exchange device) 22, carrying out heat exchange between the suspended preheater 2 isolated exhausts (high-temperature gas) of cement calcination equipment and steam (thermal medium); Drying machine (drying process device) 23 uses the superheated steam (thermal medium) after this heat exchange that organic sludge is carried out drying, forms dry organic sludge; Deodoriser (deodorizing treating apparatus) 24 is implemented deodorizing to superheated steam and is handled; Hopper 25, the storing and drying organic sludge; High-temperature gas exhaust tube (pipeline) 26; Blast pipe (pipeline) 27; Superheated steam pipeline (circulation line) 28; Superheated steam pipeline (exhaust pipe) 29; Organic sludge feeding pipe 30 supplies to drying machine 23 with organic sludge; With feeding pipe 31, dry organic sludge is supplied to roaster 3.
When carrying out drying, burning processing by 21 pairs of organic sludges of this organic sludge treating apparatus, steam (thermal medium) delivery heat exchanger 22 that will circulation from the isolated high-temperature gas of gas vent portion of the second level cyclone dust collectors 2b of suspended preheater 2 and superheated steam pipeline 28 becomes superheated steam (thermal medium) by this high-temperature gas with Steam Heating.
This superheated steam is imported in the drying machine 23 via superheated steam pipeline 28, in this drying machine 23, the organic sludge that is imported by organic sludge feeding pipe 30 is carried out drying, form dry organic sludge.This drying organic sludge temporarily is stored in the hopper 25, and acting as a fuel then supplies to roaster 3 by feeding pipe 31, the processing of burning.
In this organic sludge treating apparatus 21, utilization is extracted the exit gas of second level cyclone dust collectors 2b out and the high-temperature gas that obtains carries out heat exchange from the higher level's of suspended preheater 2 cyclone dust collectors 2a, utilize the drying means of the steam after the above-mentioned heat exchange, promptly utilize the drying means of superheated steam round-robin method by employing, realized the effective utilization of the high-temperature gas in the cement calcination equipment and the high efficiency of cement calcination equipment.
At this, the selection of bleed position among cyclone dust collectors 2a～2d is described.
For example, when when exhaust is extracted in the outlet of second level cyclone dust collectors 2b out, the effective rate of utilization of the exhaust of the outlet of these cyclone dust collectors 2b is low, the delivery temperature that causes suspended preheater 2 on the contrary owing to bleeding reduces, compensation does not have the increase of specific heat consumption by the thermal loss that the exhaust of extracting out causes yet.
Simultaneously, also temperature reduces owing to the heat exchange in the drying machine 23 in the exhaust of extraction, thereby the draught capacity of the air exhauster (IDF) 9 that itself and the gas that collaborates to form from the exhaust of suspended preheater 2 are aspirated is strengthened.
Thus, the grog ability of burning till of cement calcination equipment is improved.Because this grog burns till the raising of ability, specific heat consumption also is optimized sometimes.
Although the bleed position of exhaust is positioned at the cyclone dust collectors of subordinate more, the raising effect that grog burns till ability is high more, but in the cyclone dust collectors of subordinate, the thermal loss amount that causes of bleeding increases, influence to specific heat consumption also increases gradually, and the raising rate that the grog of cement calcination equipment burns till ability reduces.Therefore, the cyclone dust collectors of bleeding most preferably are second level cyclone dust collectors 2b, and next is preferably third level cyclone dust collectors 2c.
In addition, be used to also can access above-mentioned effect from the exhaust of the outlet of higher level's cyclone dust collectors 2a.At this moment, need make the air extractor of extracting exhaust out from these cyclone dust collectors 2a not increase flowing resistance,, have on the blast pipe 12 of suspended preheater 2 and set up heat exchanger etc. as its countermeasure to the exhaust of suspended preheater 2.
The temperature of the high-temperature gas of extracting out from the gas vent portion of second level cyclone dust collectors 2b is usually in 550～650 ℃ scope.The position of the powder stock that this high-temperature gas drops into by the raw material supplying pipeline 13 that never mixes by the finished ground cement raw material is extracted out and is obtained.Because the moisture of wanting dry organic sludge to contain is about 80 weight %, therefore, the amount of the high-temperature gas of extraction must be the lucky amount that fully is equivalent to make the water evaporates that contains in this organic sludge and forms the needed heat of superheated steam.That is, every 1kg organic sludge need be extracted 4～8Nm out usually
3Gas flow.
In addition, when the dust concentration in the exhaust of extracting out is high or when containing the volatile ingredient that becomes the reason that follow-up heat exchanger 22 scabs in a large number, preferably on high-temperature gas exhaust tube 26, set up dust-precipitators such as cyclone dust collectors.
In addition, can by on blast pipe 27, set up dust-precipitator such as cyclone dust collectors, and will in this heat exchanger 22, be cooled after exhaust in dust gather dust with dust-precipitator, prevent that volatile ingredient is attached on follow-up air exhauster (IDF) 9 grades.
The high-temperature gas of extracting out from suspended preheater 2 in heat exchanger 22, will be that 130～200 ℃ superheated steam further is heated to 300～400 ℃ as the temperature dry heat medium of circulation, that discharge from drying machine 23.
The temperature of high-temperature gas is owing to this heat exchange is reduced to 300～350 ℃, and in blast pipe 12 with exhaust interflow from suspended preheater 2.
In addition, in order to improve the heat exchange amount in the heat exchanger 22, can increase the heat transfer area of heat exchanger 22, but when the exhaust after the heat exchange being used for cement raw material dry or as the boiler of exhaust system during with thermal source etc., not necessarily need to increase heat transfer area and the gas temperature after the heat exchange is significantly reduced.If consider these conditions, as the structure of heat exchanger 22, preferred multi tube heat exchanger, heat-exchangers of the plate type etc.
High-temperature gas after temperature reduces owing to the heat exchange in this heat exchanger 22 is imported in the blast pipe 12 of suspended preheater 2, with the exhaust interflow from suspended preheater 2.
At this, for example, delivery temperature after, the heat exchange insufficient when the heat exchange in the heat exchanger 22 is higher more than 150 ℃ the time than the delivery temperature of suspended preheater 2, the rising degree of the delivery temperature behind the interflow increases, and along with the rising of the intake-gas temperature of air exhauster (IDF) 9, blowability reduces, therefore, the ability of burning till of the clinker of cement calcination equipment loses the leeway of raising, and might make the loss increase, specific heat consumption increase etc. of sensible heat of the high-temperature gas of extraction.
The higher limit of the hot-gas temperature after this heat exchange, consider for the size of regulation from the heat transfer area of guaranteeing heat exchanger 22, preferably the upper limit with the hot-gas temperature after the heat exchange is set at the temperature higher 150 ℃ than the delivery temperature of suspended preheater 2, more preferably high 100 ℃ temperature is set at the upper limit.If be cooled to the high-temperature gas of the following temperature of this higher limit, the gas temperature after then collaborating with the suspended preheater exhaust reduces.
For example, when making owing to extract about 20% high-temperature gas out temperature reduce the exhaust of 20～30 ℃ suspended preheater 2 to collaborate with the high-temperature gas after the heat exchange, temperature behind the interflow does not reduce when bleeding, and therefore, can further improve the suction force of air exhauster (IDF) 9.
This be because, when the temperature (550～650 ℃) of the high-temperature gas of extracting out from the gas vent portion of second level cyclone dust collectors 2b because heat exchange is reduced to maximum high 100～150 ℃ temperature (being limited to 450～500 ℃) of delivery temperature (about 350 ℃) than suspended preheater 2 when following, the preceding reduction of bleeding of the gas temperature ratio behind the interflow.And owing to extract this high-temperature gas out, the pressure loss that the ventilation of higher level's cyclone dust collectors 2a produces also reduces, and therefore, can further improve the suction force of air exhauster (IDF) 9, thereby can improve the ability of burning till of clinker.
Consider from this respect,, also can easily make the high-temperature gas of extraction be reduced to set point of temperature, therefore, can make the treating apparatus miniaturization and the simplification of organic sludge even the performance of heat exchanger is not high.
On the other hand, supply to the high-moisture percentage organic sludge of drying machine 23 by organic sludge feeding pipe 30, be heated near the boiling point of water or its by superheated steam, become the dry organic sludge that moisture content reduces in circulation between drying machine 23 and the superheated steam pipeline 28.At this, in order to improve the aridity of dry organic sludge, need the rising temperature to reach the falling-rate periods of drying state up to the drying of organic sludge, but usually, under the temperature of the organic sludge in when heating was maintained at about 100 ℃ state, just can easily form moisture content in the scope of constant rate of drying state was about dry organic sludge of 5%～about 10%, therefore, as the thermal medium of drying device, do not need the superheated steam of excessive temperature.
In addition, the sludge-drying that burns in cement calcination equipment even moisture content is 5～10%, also can be given full play to the performance that acts as a fuel.
Therefore, present embodiment is characterised in that, need not to set the temperature of the thermal medium of drying device too high, and the temperature of the high-temperature gas after the heat exchange in heat exchanger 22 is reduced.In other words, can easily make the temperature of high-temperature gas reduce lowlyer, thereby the exhaust of suspended preheater 2 and the temperature behind this gas interflow are reduced, the throughput of air exhauster (IDF) 9 is improved than the delivery temperature of suspended preheater 2.
As this drying machine 23, can use pneumatic drier or fluidized bed drying machine etc., but preferably use dust contained in the dried exhaust few and can control the multilevel drying machine of the material conveying type hot air type of aridity with comparalive ease.
The dry organic sludge that as above obtains temporarily is stored in the hopper 25, carries out strength with feeding pipe 31 then and carries, and acts as a fuel and drops into roaster 3, the processing of burning.
On the other hand, after the superheated steam that evaporates from organic sludge in the drying machine 23 collaborates with the superheated steam of circulation, wherein a part is transported in the deodoriser 24 via superheated steam pipeline 29, carrying out deodorizing handles, then, collaborate once more to be used for the drying of cement raw material etc. in the gas exhaust piping 12 of suspended preheater 2.
As mentioned above, according to the processing method of the organic sludge of present embodiment, the running of cement calcination equipment can not influenced and the dry organic sludge that will obtain effectively utilizes as the fuel of the roaster 3 of cement calcination equipment.
In addition, thus to carry out heat exchange recycling in the drying of organic sludge with exhaust once more owing to make dried superheated steam, therefore, can efficiently and effectively utilize superheated steam again.
Treating apparatus according to the organic sludge of present embodiment, can effectively utilize the sensible heat of extracting out from the suspended preheater 2 of cement calcination equipment that high-temperature gas had, and can not influence the running of cement calcination equipment and improve the ability of burning till of the clinker of cement calcination equipment.
In addition, thus to carry out heat exchange recycling in the drying of organic sludge with high-temperature exhaust air once more owing to make dried superheated steam, therefore, can efficiently and effectively utilize superheated steam again.
In addition, even substitute a part of superheated steam is transported in the deodoriser 24, and the gas vent portion of the cyclone dust collectors 2d of subordinate that this superheated steam is directly imported suspended preheater 2 is between the upper level cyclone dust collectors 2c of the cyclone dust collectors 2d of subordinate or the introducing port used of the cooling air of chamotte cooler 4, via the high-temperature portion more than 800 ℃ in the cement calcination equipment, make the thermal decomposition of foul smell composition, also can keep cement calcination equipment not being turned round of present embodiment not cause dysgenic state.
Promptly, preferably the part of above-mentioned superheated steam is directly imported the position more than 800 ℃ of cement calcination equipment, thus, the superheated steam that imports only is the dry amount that is produced, influence to the cement calcination equipment running is minimum, burn till ability by utilizing bleeding of above-mentioned cyclone dust collectors gas vent at different levels portion to improve clinker, can fully eliminate above-mentioned influence.
The position more than 800 ℃ in the above-mentioned cement calcination equipment, difference according to the difference of the form of cement calcination equipment etc. and to some extent, its ceiling temperature has no particular limits, and the part of the highest temperature is generally 1600 ℃.Therefore, the position that above-mentioned superheated steam is directly imported 800～1600 ℃ of temperature ranges in the cement calcination equipment gets final product.
In addition, also can substitute a part of superheated steam is transported in the deodoriser 24, and this superheated steam is utilized coolings such as condenser, reclaim as moisture thus, the moisture that reclaims can carry out the wastewater treatment with decomposition such as contained foul smell compositions, thereby utilizes in cement making equipment once more.
Second embodiment
Fig. 2 is the schematic diagram of cement calcination equipment that the organic sludge treating apparatus of second embodiment of the invention has been set up in expression, the difference of the organic sludge treating apparatus 21 of this organic sludge treating apparatus 41 and first embodiment is, replace high-temperature gas exhaust tube 26 and blast pipes 27 with high-temperature gas exhaust pipe 42 and high-temperature gas gas exhaust piping 43, and the high-temperature gas from the drying of high-temperature exhaust air as drying machine 23 of blast pipe 12 shuntings in the downstream of the air exhauster (IDF) 9 of suspended preheater 2, to use.
In this organic sludge treating apparatus 41, become the high-temperature exhaust air of desiccant thermal source, blast pipe 12 shuntings from suspended preheater 2 are transported in the heat exchanger 22 by high-temperature gas exhaust pipe 42.Contain chlorine, SO that the high-temperature portion at cement calcination equipment volatilizes in this exhaust hardly
xWith other volatile ingredient, and the content of dust is also less, therefore, need not remove these compositions in advance before being transported to heat exchanger 22.
Should be imported into heat exchanger 22 with about 350 ℃～about 400 ℃ temperature from the exhaust of suspended preheater 2, carry out being cooled to about 200 ℃ after the heat exchange with superheated steam, then, with a part of superheated steam that in deodoriser 24, decomposes, removed the foul smell composition similarly in the blast pipe 12 of suspended preheater 2 with collaborate once more from the exhaust of suspended preheater 2.
According to this organic sludge treating apparatus 41, because with the high-temperature gas that from the drying of high-temperature exhaust air as drying machine 23 of blast pipe 12 shuntings in the downstream of the air exhauster (IDF) 9 of suspended preheater 2, uses, therefore, can temperature reduce this position of importing, back carrying out heat exchange.In addition, therefore the drying of organic sludge and the superheated steam that produces is carrying out being imported into blast pipe 12 after deodorizing is handled, ventilates without any influence to the gas of cement calcination equipment, and the running ground that can not influence cement calcination equipment carries out the processing of organic sludge.
Utilizability on the industry
The processing method of high-moisture percentage organic waste of the present invention and treating apparatus can use in cement calcination equipment, can process efficiently the high-moisture percentage organic wastes such as sewage sludge of discharging in the various industrial fields. In addition, resulting dry organic waste can effectively utilize as the fuel of cement calcination equipment, residue after burning till can be used as the clinker raw material, and can efficiently and effectively recycle dried thermal medium, therefore, the present invention also has contribution for the resource savingization that usually becomes problem in the industrial field. Therefore, the present invention has the utilizability on the high industry.
Claims (11)
1. the processing method of a high-moisture percentage organic waste is used to use cement calcination equipment that the high-moisture percentage organic waste is carried out turning sludge into fuel and burning processing, it is characterized in that possessing:
Drying process, use and the thermal medium that has carried out heat exchange from the isolated high-temperature gas of described cement calcination equipment, described high-moisture percentage organic waste is carried out drying, form dry organic waste, and make this dried thermal medium carry out heat exchange with described high-temperature gas once more, thereby recycling in the drying of described high-moisture percentage organic waste, wherein, described dried thermal medium is for by carrying out the superheated steam that drying produces to described high-moisture percentage organic waste; With
The burning operation should the drying organic waste supplies to described cement calcination equipment or burner and makes its burning.
2. the processing method of high-moisture percentage organic waste as claimed in claim 1, it is characterized in that described burning operation is described dry organic waste is supplied to more than 1 place in rotary kiln, roaster and the suspended preheater of described cement calcination equipment and to make the operation of its burning.
3. the processing method of high-moisture percentage organic waste as claimed in claim 2, it is characterized in that described high-temperature gas is any 1 high-temperature gas of bleeding more than the position and obtaining from the cyclone dust collectors gas vent at different levels portion of the suspended preheater of described cement calcination equipment.
4. the processing method of high-moisture percentage organic waste as claimed in claim 2, it is characterized in that described high-temperature gas is for the exhaust of discharging from the suspended preheater of described cement calcination equipment, from any a kind or 2 kinds of bleeding of extracting out of the chamotte cooler of described cement calcination equipment.
5. as the processing method of claim 3 or 4 described high-moisture percentage organic wastes, it is characterized in that, after a part of extracting described superheated steam out is implemented deodorizing and handled, it is imported described cement calcination equipment.
6. the processing method of high-moisture percentage organic waste as claimed in claim 3 is characterized in that, the part of described superheated steam is directly imported the position more than 800 ℃ of described cement calcination equipment.
7. the treating apparatus of a high-moisture percentage organic waste is used to use cement calcination equipment that the high-moisture percentage organic waste is carried out turning sludge into fuel and burning processing, it is characterized in that possessing:
Heat-exchange device is carrying out heat exchange between isolated high-temperature gas of described cement calcination equipment and thermal medium;
Drying process device uses this thermal medium that has carried out heat exchange that described high-moisture percentage organic waste is carried out drying, forms dry organic waste;
Circulation line circulates this dried thermal medium between described heat-exchange device and described drying process device; With
Feeding pipe supplies to described dry organic waste in described cement calcination equipment or the burner,
Wherein, described dried thermal medium is for by carrying out the superheated steam that drying produces to described high-moisture percentage organic waste.
8. the treating apparatus of high-moisture percentage organic waste as claimed in claim 7 is characterized in that, possesses the deodorizing treating apparatus, the part of the superheated steam that produces in the described drying device is extracted out, and the superheated steam of this extraction is implemented deodorizing handle.
9. the treating apparatus of high-moisture percentage organic waste as claimed in claim 7, it is characterized in that, possess deodorizing and handle pipeline, the part of the superheated steam that produces in the described drying device is extracted out, and the superheated steam that will extract directly carries out the deodorizing processing in the position more than 800 ℃ of the described cement calcination equipment of importing.
10. as the treating apparatus of each described high-moisture percentage organic waste in the claim 7～9, it is characterized in that possessing any 1 isolated the bleeding more than the position from the cyclone dust collectors gas vent at different levels portion of the suspended preheater of described cement calcination equipment is imported the pipeline of described heat-exchange device as high-temperature gas.
11. treating apparatus as claim 7 or 8 described high-moisture percentage organic wastes, it is characterized in that, possess with the exhaust of the suspended preheater of described cement calcination equipment as high-temperature gas import described heat-exchange device pipeline, will import any 1 or 2 of pipeline of described heat-exchange device from bleeding of extracting out of the chamotte cooler of described cement calcination equipment as high-temperature gas.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP300605/2006 | 2006-11-06 | ||
| JP2006300605A JP4987428B2 (en) | 2006-11-06 | 2006-11-06 | High moisture content organic waste treatment method and treatment equipment |
| PCT/JP2007/071554 WO2008056664A1 (en) | 2006-11-06 | 2007-11-06 | Method of disposing of organic waste of high water content and disposal apparatus therefor |
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| Publication Number | Publication Date |
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| CN101528614A CN101528614A (en) | 2009-09-09 |
| CN101528614B true CN101528614B (en) | 2011-07-06 |
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| CN2007800401039A Active CN101528614B (en) | 2006-11-06 | 2007-11-06 | Method of disposing of organic waste of high water content and disposal apparatus therefor |
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| Country | Link |
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| US (1) | US20100058963A1 (en) |
| JP (1) | JP4987428B2 (en) |
| KR (1) | KR101287262B1 (en) |
| CN (1) | CN101528614B (en) |
| TW (1) | TWI419847B (en) |
| WO (1) | WO2008056664A1 (en) |
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| EP3998425A4 (en) * | 2019-08-06 | 2023-04-19 | Taiheiyo Engineering Corporation | Method and apparatus for treating combustible substance |
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| CN114656125A (en) * | 2022-03-31 | 2022-06-24 | 上海电气集团股份有限公司 | Two-stage sludge drying system and drying method |
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- 2007-11-06 CN CN2007800401039A patent/CN101528614B/en active Active
- 2007-11-06 KR KR1020097009241A patent/KR101287262B1/en active IP Right Grant
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Also Published As
| Publication number | Publication date |
|---|---|
| TW200838812A (en) | 2008-10-01 |
| KR101287262B1 (en) | 2013-07-17 |
| KR20090091289A (en) | 2009-08-27 |
| US20100058963A1 (en) | 2010-03-11 |
| TWI419847B (en) | 2013-12-21 |
| CN101528614A (en) | 2009-09-09 |
| WO2008056664A1 (en) | 2008-05-15 |
| JP2008114173A (en) | 2008-05-22 |
| JP4987428B2 (en) | 2012-07-25 |
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