CN201589272U - Waste disposal system applied in production of cement dry-process rotary kiln - Google Patents
Waste disposal system applied in production of cement dry-process rotary kiln Download PDFInfo
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- CN201589272U CN201589272U CN2009202691846U CN200920269184U CN201589272U CN 201589272 U CN201589272 U CN 201589272U CN 2009202691846 U CN2009202691846 U CN 2009202691846U CN 200920269184 U CN200920269184 U CN 200920269184U CN 201589272 U CN201589272 U CN 201589272U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
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Images
Classifications
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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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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a waste disposal system applied in the production of a cement dry-process rotary kiln, wherein the waste disposal system comprises a waste storage bin, a garbage crusher, a waste feeding device, a decomposing furnace and a rotary type cement kiln, wherein the decomposing furnace and the rotary type cement kiln are adopted in the dry-process cement production; a waste gasified combustion furnace is arranged in the waste disposal system; the waste feeding device is communicated with a waste inlet of the waste gasified combustion furnace; an exhaust port of the waste gasified combustion furnace is communicated with the decomposing furnace through a pipeline; and a material outlet of the decomposing furnace is communicated with a feed opening of the cement kiln. By adopting the technical scheme, the time that the gas generated during the refuse burning process stays in the kiln is long, the combustion process is complete, the processing temperature is high, the incineration is thorough at high temperature, odor generation can be avoided completely during the refuse burning process, the generation of Dioxin is avoided especially, and pollution to environment can be reduced; in addition, energy generated when the waste is burnt can also be utilized, so that the waste disposal system has the advantages of low investment, good economic benefits and good social benefits compared with the present refuse burning technology.
Description
Technical field
The utility model belongs to technical field of environment protection, relates to technology of producing cement and technology of garbage disposal, and more particularly, the utility model relates to a kind of refuse disposal system of using in Cement Dry Process Kiln Product is produced.
Background technology
At present, the main methods of house refuse comprises that landfill method, composting process, heat treating process and classification are reclaimed, comprehensive utilization (RDF technology).The emphasis of the external application of studying at present is that classification is reclaimed, and the house refuse of collecting is carried out resource classification reclaim and fully utilize, and reduces the wasting of resources that causes because of the conventional process mode.Heat treating process is divided into again according to the technology that is adopted: burning method, pyrolysismethod and evaporating method, main use is burning method at present.Landfill method, composting process and burning method are with the development of society and the progress of material, from on a small scale on a large scale, from the manually-operated to mechanization, the transfer of automation mechanized operation, be the development of " innoxious, subtract appearanceization, resource, intensification " of garbage disposal, but above three kinds of methods can not accomplish rubbish subtracted to hold fully to handle final requirement.
Burning disposal is rubbish to be placed in the incinerator burn, and discharges heat energy, but waste heat recovery heat supply or generating.Discharge after the gas cleaning, a small amount of residual residue is discharged landfill or is made other purposes.The incineration treatment technology characteristics are that treating capacity is big, to subtract capacitive good, innoxious thoroughly, and the energy recovery effect is arranged.Therefore, house refuse is carried out effective processing mode that burning disposal is innoxious, minimizing and resource.This technology of garbage disposal is generally adopted in countries in the world.
Garbage incineration technology mainly contains three major types both at home and abroad: layer combustion technology, fluidized bed combustion and rotary combustion technology (also claiming rotary kiln type).
Incinerator from external introduction, in view of the design philosophy of various CIUs is innoxious through fully arriving after the burning disposal with rubbish, minimizing and resource turn to main target, economy to system, suggestiveness, aspects such as the fluctuation of component of refuse and deterioration are considered abundant not enough, make these incineration treatment technologies exist body of heater initial stage equipment investment height, crucial high-temperature component is shorter service life, problems such as maintenance is convenient inadequately, incinerator needs complicated exhaust-gas treatment facilities simultaneously, burning residue later also needs landfill disposal, can cause new secondary pollution to environment equally.
Utilizing RDF technical finesse house refuse is the another potential of cement rotary kiln, generally adopted in developed countries such as Germany, Japan, adopt means such as house refuse fragmentation, screening, with the combustible separating treatment in the house refuse and be used, fuel as the cement plant, lime-ash after the burning is carried out utilization as cement raw material, so utilize cement rotary kiln to handle the processing mode that house refuse is a kind of effective nothing discharging.
But aforesaid way also has certain limitation, mainly shows:
1, can only utilize the combustible constituent in the rubbish to do alternative fuel, can not handle for not flammable part;
2, need complicated rubbish pre-procesor, rubbish will be through fragmentation and sorting repeatedly, and screening installation need be from external import;
3, the product that sorts out (alternative fuel) still has certain smell, and its storage and transportation meeting cause odor pollution to ambient air.
The utility model content
First problem to be solved in the utility model provides a kind of refuse disposal system of using in Cement Dry Process Kiln Product is produced, its objective is technology of garbage disposal is combined with technology of producing cement, make full use of gas and lime-ash that the garbage burning, gasification technology produces, it is directly used in the production of cement dry method kiln, realizes " innoxious, minimizing, resource " of rubbish.
To achieve these goals, the technical scheme taked of the utility model is:
This refuse disposal system of in Cement Dry Process Kiln Product is produced, using provided by the utility model, comprise dore furnace, helicoid cement kiln in rubbish storage bin, refuse grinder, rubbish feedway and the cement produced with the dry method production, described refuse disposal system is established garbage gasification burner, described rubbish feedway is communicated with the rubbish import of garbage gasification burner, the exhaust outlet of described garbage gasification burner is communicated with described dore furnace by pipeline, and the material outlet of described dore furnace is communicated with described cement kiln charging aperture.
The bottom of described garbage gasification burner is provided with incombustible and discharges system.
The discharge device that described incombustible is discharged system is communicated with the storing place of cement slurry; The discharge device that perhaps described incombustible is discharged system is communicated with the mixing arrangement of cement products.
Described incombustible is discharged system and is communicated with the incombustible magnetic plant, described incombustible magnetic plant is communicated with irony incombustible conveying device, aluminium matter incombustible conveying device respectively, and described aluminium matter incombustible conveying device is communicated with aluminium matter incombustible sorting unit, raw meal grinding system respectively.
Described incombustible discharge system is provided with fluidisation sand grading plant, and the discharging opening of described fluidisation sand grading plant is connected with the sand circulation supply equipment, and described garbage gasification burner is connected with described sand circulation supply equipment by the import of fluidisation sand.
Establish the solid waste gas discharge pipe on the described rubbish storage bin, described solid waste gas discharge pipe is communicated with described garbage gasification burner, and in described solid waste gas discharge pipe, establish pressure fan, the air supply direction of described pressure fan is to garbage gasification burner from the rubbish storage bin.
Described garbage gasification burner is connected with coal powder supply device by the coal dust import.
Described cement kiln is provided with bypass equipment, and described bypass equipment comprises dilution cooler, gas cooler.
Second problem to be solved in the utility model provides the above-described processing method of using that refuse disposal system adopted in Cement Dry Process Kiln Product is produced, its goal of the invention is identical with technique scheme.The process of this method is as follows:
The rubbish storing that refuse collector transports stores in the rubbish storage bin;
With the rubbish driving rubbish is stirred and homogenizing;
With refuse grinder to refuse breaking after, continue rubbish to be stirred and homogenizing with the rubbish driving;
Then rubbish is delivered to the rubbish feedway, at the uniform velocity delivers to rubbish in the garbage gasification burner by the rubbish feedway;
Simultaneously, the gas that produces in the rubbish storage bin under the driving of pressure fan, by the solid waste gas discharge pipe, is sent in the garbage gasification burner;
The rubbish that is fed in the garbage gasification burner is that fluidisation sand contact with temperature flowing medium in the stove, and a part provides thermal source by burning to flow media, and formation part imflammable gas is sent in the dore furnace after another part gasification;
Part of ash also is sent in the dore furnace in the garbage gasification burner;
Above-mentioned gas and the ash content that enters dore furnace, further burning in dore furnace, cement kiln, gas is wherein discharged after preheater processing and exhaust treatment system purification;
Simultaneously, the sedimentation on one side in flow media of the incombustible in the rubbish in the garbage gasification burner is moved on one side, when having arrived the furnace bottom of garbage gasification burner, separates from rubbish, discharges by incombustible discharge system, is incorporated in the cement slurry; Perhaps be incorporated in the cement products as composite material.
Incombustible in the described rubbish through the sorting of incombustible magnetic plant, separates wherein irony incombustible with aluminium matter incombustible;
Described irony incombustible is delivered to the irony stock ground by irony incombustible conveying device;
Described aluminium matter incombustible is delivered to aluminium matter incombustible sorting unit by aluminium matter incombustible conveying device and is carried out sorting, and wherein aluminium is separated with other incombustible; Described aluminium is sent to aluminium material field; Described other incombustible is sent to the raw meal grinding system.
The utility model adopts technique scheme, waste incineration combines with cement rotary kiln, the gas that waste incineration produces is long at kiln residence time, combustion process is abundant, the treatment temperature height, high temperature burns thoroughly down, has avoided the generation of smell in the waste incineration process fully, particularly avoided the generation of dioxin, reduced pollution environment; The burning state is easy to stablize, and the exhaust-gas treatment performance is good; The environment of solid phase alkalescence in the manufacture of cement helps to control the discharging of rubbish middle acid substance; Subtract appearance, minimizing is the most thorough, the composition after the sorting can reclaim, and can also make full use of the energy that incineration firing produces, and helps to save energy and reduce the cost; Solve the harmful substance in the waste incineration, the curing heavy metal ion reduces its pollution to water source and soil; Can not bring influence, compare, invest for a short time, good economic benefit and social benefit are arranged with the conventional garbage incineration technology to cement product quality and production process.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are briefly explained:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the garbage gasification burner structural representation in the utility model;
Fig. 3 is the structural representation of waste incineration part in the utility model;
Fig. 4 is the structural representation of manufacture of cement part in the utility model;
Fig. 5 is the structural representation of cogeneration part in the utility model.
Be labeled as among the figure:
1, the rubbish storage bin, 2, the rubbish driving, 3, refuse grinder, 4, the rubbish feeding device, 5, garbage gasification burner, 6, incombustible is discharged system, 7, pressure fan, 8, dore furnace, 9, cement kiln, 10, the solid waste gas discharge pipe, 11, bypass equipment, 12, the rubbish import, 13, exhaust outlet, 14, hot-air inlets, 15, the import of fluidisation sand, 16, the coal dust import, 17, the lime-ash outlet, 18, the incombustible magnetic plant, 19, irony incombustible conveying device, 20, aluminium matter incombustible conveying device, 21, aluminium matter incombustible sorting unit, 22, the raw meal grinding system, 23, hot-blast stove, 24, the irony stock ground, 25, aluminium material field.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and operation principle, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present utility model structure expressed as Fig. 1 to Fig. 5, the utility model is a kind of refuse disposal system of using in Cement Dry Process Kiln Product is produced, and comprises dore furnace 8, helicoid cement kiln 9 in rubbish storage bin 1, refuse grinder 3, rubbish feedway 4 and the cement produced with the dry method production.
The cement dry method klining becomes the pre-thermal decomposition of technology and exhaust-gas treatment part mainly to be made up of the following aspects:
5 grades of novel cyclone preheaters, the outer using predecomposition technology (dore furnace 8) of kiln, exhaust treatment system, spray humidification system, afterheat generating system, dust pelletizing system.
The material of nsp kiln enters dore furnace 8 by the feeding of preheater top after the cyclone preheater preheating, enter helicoid cement kiln 9 after decomposing therein and calcine, and the material composition of going into nsp kiln mainly is CaCO
3
Through afterheat generating system, spray humidification system and dust pelletizing system enter atmosphere after purifying to the high-temperature gas that goes out cement kiln 9 after decomposing kiln and preheater heat exchange.
Because worst hot case and alkaline environment in the cement rotary kiln, modern rotary kiln production process provides possibility for disposal of refuse, thereby also provides an effective way for modern society's comprehensive utilization natural resources and protection environment.Cement production process is a high energy consumption process, fuel cost accounts for 40% of whole plant produced cost, the technical problem that the development of current cement industry is badly in need of solving is energy-conservation, consumption reduction, environmental protection, improve cement quality and raise labour productivity, and walks the road of sustainable development.Just in time can help the cement plant to solve problems such as energy-conservation and consumption reduction and utilize the cement firing system to handle domestic waste, reduced the traditional non-renewable fuel and the demand of natural resources, minimizing is to environment damage with to the loss of resource, reduce the pollution of rubbish, avoided processing modes such as landfill and burning second environmental pollution to social environment.
On the other hand, this trash processing way not only can reduce the energy consumption of manufacture of cement, has reduced production cost, has improved the productivity effect in cement plant, but also reduce the cost of garbage disposal greatly, do not need to increase the device for purifying and treating tail gas in the similar waste incineration and generating electricity treatment process.
Therefore utilizing the cement firing system to handle domestic waste is the processing mode of a kind of " doulbe-sides' victory ", helps realizing utilizing again and economic sustainable development of resource.
Reason in view of the above the utility model proposes following technical scheme:
This refuse disposal system of in Cement Dry Process Kiln Product is produced, using provided by the utility model, described refuse disposal system is established garbage gasification burner 5, described rubbish feedway 4 is communicated with the rubbish import 12 of garbage gasification burner 5, the exhaust outlet 13 of described garbage gasification burner 5 is communicated with described dore furnace 8 by pipeline, and the material outlet of described dore furnace 8 is communicated with described cement kiln 9 charging apertures.
Key equipment of the present utility model is a refuse gasification incinerator 5, develops incinerator steady production, controlled system Outlet Gas Temperature.
As shown in Figure 2, refuse gasification incinerator 5 comprises the lime-ash outlet 17 of rubbish import 12, exhaust outlet 13, hot-air inlets 14, fluidisation sand import 15, coal dust import 16, bottom.
Solid waste gas is introduced dore furnace and is burnt therein, enters atmosphere after the process identical with the high-temperature gas passes that goes out rotary kiln.
Adopt the advantage of technique scheme to be:
Waste incineration combines with cement rotary kiln, has avoided the generation of smell in the waste incineration process fully.
Waste incineration and new type nonaqueous cement firing technology all are mature technique, and the utility model is the two perfect combination.The preheater of new type dry kiln and dore furnace, exhaust-gas treatment have replaced the tail gas clean-up processing section of waste incineration fully, have substituted this part investment.
Garbage disposal temperature height, high temperature burns thoroughly down.
Waste gas from gasification furnace enters the decomposition furnace system of cement kiln, is more than 4 seconds in the time of staying under 870 ℃ the temperature, and the effect that the control dioxin takes place is better than general city garbage burning facility.Temperature of charge in the cement rotary kiln is at 1450 ℃～1550 ℃ in addition, gas temperature then up to 1700 ℃～about 1800 ℃.At high temperature, thoroughly decompose, generally destroy clearance by fire and reach 99.99% from the ash content of rubbish.
Be the specific embodiment of the present utility model below:
One, the bottom of garbage gasification burner 5 described in the utility model is provided with incombustible and discharges system 6.
Incombustible is discharged system 6 and is communicated with lime-ash outlet 17.
The purpose of this scheme is to make to subtract that to hold minimizing the most thorough, and the composition after the sorting can reclaim.
Utilizing the cement firing system to handle domestic waste is unique mode that does not have waste residue waste gas to discharge in the various trash processing way.In the production process of cement industry, have only raw material and, do not have general incinerator to burn the problem that produces slag through the grog that calcine technology is produced; And whole system is operation operation under negative pressure, and flue gas and dust almost do not have the problem of leaking outside.
The curing heavy metal ion:
Utilize cement industry calcined by rotary kiln PROCESS FOR TREATMENT rubbish (comprising danger wastes), the most heavy metal ion in the rubbish can be solidificated in the clinker mineral, avoid it to permeate once again and diffuse pollution water quality and soil.According to result of study demonstration both at home and abroad, the concrete that contains a small amount of heavy metal can be made the city water pipeline, and the leaching amount of heavy metal is lower than the surface water secondary standard.
Composition recovery method after the above-described sorting:
1, the above-described incombustible discharge device of discharging system 6 is communicated with the storing place of cement slurry; The discharge device that perhaps described incombustible is discharged system 6 is communicated with the mixing arrangement of cement products.
Discharge device is communicated with the storing place of cement slurry, is to make the incombustible of discharging from incombustible discharge system 6 be incorporated into the cement slurry, supplies follow-up production as raw material;
Discharge device is communicated with the mixing arrangement of cement products, is to make the incombustible of discharging from incombustible discharge system 6 be incorporated into the cement products as composite material.
2, above-described incombustible is discharged system 6 and is communicated with incombustible magnetic plant 18, described incombustible magnetic plant 18 is communicated with irony incombustible conveying device 19, aluminium matter incombustible conveying device 20 respectively, and described aluminium matter incombustible conveying device 20 is communicated with aluminium matter incombustible sorting unit 21, raw meal grinding system 22 respectively.
Incombustible in the described rubbish through the sorting of incombustible magnetic plant 18, separates wherein irony incombustible with aluminium matter incombustible;
Described irony incombustible is delivered to irony stock ground 24 by irony incombustible conveying device 19;
Described aluminium matter incombustible is delivered to aluminium matter incombustible sorting unit 21 by aluminium matter incombustible conveying device 20 and is carried out sorting, and wherein aluminium is separated with other incombustible; Described aluminium is sent to aluminium material field 25; Described other incombustible is sent to raw meal grinding system 22.
3, above-described incombustible is discharged system 6 and is provided with fluidisation sand grading plant, the discharging opening of described fluidisation sand grading plant is connected with the sand circulation supply equipment, and described garbage gasification burner 5 is connected with described sand circulation supply equipment by fluidisation sand import 15.
The purpose of said structure is that the temperature flowing medium that reclaims in the garbage gasification burner 5 is a fluidisation sand, and it is turned back to the sand circulation supply equipment, so that recycle.
Two, the processing of the gas that rubbish storage bin 1 is produced:
Establish solid waste gas discharge pipe 10 on the rubbish storage bin 1 described in the utility model, described solid waste gas discharge pipe 10 is communicated with described garbage gasification burner 5, and in described solid waste gas discharge pipe 10, establish pressure fan 7, the air supply direction of described pressure fan 7 is from rubbish storage bin 1 to garbage gasification burner 5.
,, enter in the burner hearth of garbage gasification burner 5 with air from the gas of rubbish storage bin 1, guaranteed the carrying out of burning from the hot-air inlets 14 of garbage gasification burner 5 through the heating of hot-blast stove 23.
Three, the combustible substance of garbage gasification burner 5:
Garbage gasification burner 5 described in the utility model is connected with coal powder supply device by coal dust import 16.
Four, the harmful substance in the solution waste incineration.
Bypass equipment: adopt dilution cooler, gas cooler than low discharge.
In the domestic waste other has sulphur, chlorine, potassium, sodium etc. to manufacture of cement and the harmful component of quality.Wherein potassium, sodium all are presented at the limits that can admit when batching.Sulfur content is approaching in the raw coal that use in interfering component sulphur and cement plant, and in cement plant raw coal anxiety, when quality can not guarantee grog being burnt till with product quality has certain influence.Chlorine is the another kind of main harmful substance in the New Type Dry-process Cement Production, shows its influence to preheater by analyzing.But these several harmful substances are existing solution on the new type nonaqueous cement kiln: can remove the part harmful substance by the mode of bypass and produce needs to satisfy the new type nonaqueous cement kiln.Trace heavy metals is ignored to the influence of production process and cement clinker quality in addition.
The utility model also provides the above-described processing method of using that refuse disposal system adopted in Cement Dry Process Kiln Product is produced, its goal of the invention is identical with technique scheme.The process of this method is as follows:
The rubbish storing that refuse collector transports stores in rubbish storage bin 1;
Stir and homogenizing with 2 pairs of rubbish of rubbish driving;
Behind 3 pairs of refuse breakings of refuse grinder, continue to stir and homogenizing with 2 pairs of rubbish of rubbish driving;
Then rubbish is delivered to rubbish feedway 4, rubbish is at the uniform velocity delivered in the garbage gasification burner 5 by rubbish feedway 4;
Simultaneously, the gas that produces in the rubbish storage bin 1 under the driving of pressure fan 7, by solid waste gas discharge pipe 10, is sent in the garbage gasification burner 5;
The rubbish that is fed in the garbage gasification burner 5 is that fluidisation sand contact with temperature flowing medium in the stove, and a part provides thermal source by burning to flow media, and formation part imflammable gas is sent in the dore furnace 8 after another part gasification;
Part of ash also is sent in the dore furnace 8 in the garbage gasification burner 5;
Above-mentioned gas and the ash content that enters dore furnace 8, further burning in dore furnace 8, cement kiln 9, gas is wherein discharged after preheater processing and exhaust treatment system purification;
Simultaneously, the sedimentation on one side in flow media of the incombustible in the rubbish in the garbage gasification burner 5 is moved on one side, when having arrived the furnace bottom of garbage gasification burner 5, separates from rubbish, discharges system 6 by incombustible and discharges, and is incorporated in the cement slurry; Perhaps be incorporated in the cement products as composite material.
Incombustible in the described rubbish through the sorting of incombustible magnetic plant 18, separates wherein irony incombustible with aluminium matter incombustible;
Described irony incombustible is delivered to irony stock ground 24 by irony incombustible conveying device 19;
Described aluminium matter incombustible is delivered to aluminium matter incombustible sorting unit 21 by aluminium matter incombustible conveying device 20 and is carried out sorting, and wherein aluminium is separated with other incombustible; Described aluminium is sent to aluminium material field 25; Described other incombustible is sent to raw meal grinding system 22.
The utility model adopts the effect of technique scheme to be:
The time of staying of rubbish in cement kiln is long:
Cement rotary kiln barrel is long, from ash content longer duration under the rotary kiln condition of high temperature of rubbish.According to general statistics, material time of staying total from the kiln tail to kiln hood is about 35min.
The burning state is easy to stablize:
Cement rotary kiln is a combustion system that thermal inertia is very big, very stable.The skinning that it forms by the refractory brick of building by laying bricks or stones in rotary kiln metal cylinder, the kiln and at clinkering zone and treat that calcining materials forms.Not only quality is huge, and because refractory material has heat-proof quality, causes big temperature fluctuation with regard to being difficult for because of the variation of rubbish input amount and character like this, and system is easy to stablize.
The environment of solid phase alkalescence helps the discharging of control rubbish middle acid substance:
The intermediate product of producing the material composition of cement employing is CaO, and is evenly distributed in the system with suspended state, adds that distribution of particles is thin, concentration is high, has adsorptivity, the alkaline solid phase atmosphere that this has just determined in the firing system suppresses the discharging of acidic materials completely effectively, makes SO
2And Cl
-Be combined to salt and be fixed up etc. chemical composition, reduce or avoided producing after the burning disposal phenomenon of " dioxin ", control SOx, sour gas such as HCl are discharged from chimney.
Combustion process is abundant:
Gas flow rate is bigger in the firing system, the gas turbulence degree is big, help the dispersion of refuse pyrolysis gas, assurance refuse pyrolysis gas fully contacts with high-temperature flue gas, make refuse pyrolysis gas be in high-temperature fluidizedization combustion process, help the completing combustion of refuse pyrolysis gas, avoid producing toxic gas.
Reduce the discharge amount of exhaust gas of the whole society:
Because burning, refuse gasification gas to emit certain heat, but instead of part mineral matter fuel, and this has just reduced the requirement of cement industry to mineral matter fuel (coal, natural gas etc.).The incinerator slag can be used as the raw material of manufacture of cement in addition.This refuse gasification gas is added in the dore furnace mixed flue gas amount that the mode with traditional mineral matter fuel multifuel combustion produces, compare with the waste gas summation that is produced of burning away the refuse with independent manufacture of cement, discharge capacity will greatly reduce, and is far smaller than two parts sum, CO in the waste gas
2, SO
2, Cl
-Discharge capacity all obviously reduce.
The exhaust-gas treatment performance is good:
Cement industry firing system and exhaust treatment system, the waste gas that the burning back is produced through long path and good humidification activation, cooling dust collecting system, returns the feedstock production system and utilizes again.
Invest for a short time, good economic benefit arranged:
Utilize the cement rotary kiln disposal of refuse, only needing increases rubbish preliminary treatment and burning facility, need not to increase the tail gas clean-up treatment facility, and this just greatly reduces investment.Though, also will and measure on the facility and inject capital at process equipment for quality and the production requirement of satisfying cement products, system is carried out necessary transformation, its investment is compared with newly-built special-purpose incineration plant, still can save a large amount of fund inputs.
Product quality is not influenced:
Under controllable condition, the cement kiln system burns domestic waste can not bring influence to cement product quality and production process.Organic matter in the domestic waste is mainly elements such as carbon, hydrogen, oxygen, in the hot environment of cement kiln system, can decompose, inorganic matter in the domestic waste is mainly silicon, aluminium, iron, the calcium that cement raw material needs, be the component of cement raw material, therefore can not constitute influence the product quality of cement.
Avoid pernicious gas to produce:
Solid waste gas directly enters dore furnace 8 (temperature is more than 850 ℃) burning, avoids the secondary of harmful substance dioxin to produce.
In sum, the technical characterstic of the utility model (CKK system) is to make special fuel---" rubbish " burns, and introduces the cement manufacturing system and replace part material and fuel.The gasification, and combustion technology is actively to utilize in the rubbish thermal source of combustion parts easily, by its thermal source the rubbish of the difficulty of burning is gasificated into the imflammable gas of carbon containing, is the irrealizable technology of garbage disposal of prior art.The gasification, and combustion technology is a technology of utilizing thermopnore combustion technology in the past to develop, and the violent flammability of thermopnore combustion furnace is in the past improved, and utilizes the heat accumulation function of the coal body that flows, and makes its smoulder, and realizes stable combustion technology.Technology of the present utility model can be not the whole burnings together that make rubbish, but the part of rubbish is gasified at the rubbish of different qualities, burns slowly, thereby realizes the stability of gas flow, the generating capacity of reduction harmful substance.Technology of the present utility model is introduced solid waste gas and lime-ash in the appropriate position of cement nsp kiln system, utilizes the high-temperature process solid waste gas and the lime-ash of cement nsp kiln, guarantees not produce pollution.Technology of the present utility model reduces coal consumption and realizes energy-conservation by forming a complete set of with the novel concrete kiln system.Simultaneously, the ash content of its generation can need not newly be established ash treatment factory as cement raw material again, has reduced environmental pollution.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (8)
1. refuse disposal system of in Cement Dry Process Kiln Product is produced, using, comprise rubbish storage bin (1), refuse grinder (3), dore furnace (8) during rubbish feedway (4) and cement produced with the dry method are produced, helicoid cement kiln (9), it is characterized in that: described refuse disposal system is established garbage gasification burner (5), described rubbish feedway (4) is communicated with the rubbish import (12) of garbage gasification burner (5), the exhaust outlet (13) of described garbage gasification burner (5) is communicated with described dore furnace (8) by pipeline, and the material outlet of described dore furnace (8) is communicated with described cement kiln (9) charging aperture.
2. according to the described refuse disposal system of using in Cement Dry Process Kiln Product is produced of claim 1, it is characterized in that: the bottom of described garbage gasification burner (5) is provided with incombustible and discharges system (6).
3. according to the described refuse disposal system of using in Cement Dry Process Kiln Product is produced of claim 2, it is characterized in that: the discharge device that described incombustible is discharged system (6) is communicated with the storing place of cement slurry; The discharge device that perhaps described incombustible is discharged system (6) is communicated with the mixing arrangement of cement products.
4. according to the described refuse disposal system of in Cement Dry Process Kiln Product is produced, using of claim 2, it is characterized in that: described incombustible is discharged system (6) and is communicated with incombustible magnetic plant (18), described incombustible magnetic plant (18) is communicated with irony incombustible conveying device (19), aluminium matter incombustible conveying device (20) respectively, and described aluminium matter incombustible conveying device (20) is communicated with aluminium matter incombustible sorting unit (21), raw meal grinding system (22) respectively.
5. according to the described refuse disposal system of in Cement Dry Process Kiln Product is produced, using of claim 2, it is characterized in that: described incombustible is discharged system (6) and is provided with fluidisation sand grading plant, the discharging opening of described fluidisation sand grading plant is connected with the sand circulation supply equipment, and described garbage gasification burner (5) is connected with described sand circulation supply equipment by fluidisation sand import (15).
6. according to claim 1 or 2 or 3 or the 4 or 5 described refuse disposal systems of in Cement Dry Process Kiln Product is produced, using, it is characterized in that: establish solid waste gas discharge pipe (10) on the described rubbish storage bin (1), described solid waste gas discharge pipe (10) is communicated with described garbage gasification burner (5), and in described solid waste gas discharge pipe (10), establish pressure fan (7), the air supply direction of described pressure fan (7) is to garbage gasification burner (5) from rubbish storage bin (1).
7. according to claim 1 or 2 or 3 or the 4 or 5 described refuse disposal systems of using in Cement Dry Process Kiln Product is produced, it is characterized in that: described garbage gasification burner (5) is connected with coal powder supply device by coal dust import (16).
8. according to claim 1 or 2 or 3 or the 4 or 5 described refuse disposal systems of in Cement Dry Process Kiln Product is produced, using, it is characterized in that: described cement kiln (9) is provided with bypass equipment (11), and described bypass equipment (11) comprises dilution cooler, gas cooler.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202691846U CN201589272U (en) | 2009-12-31 | 2009-12-31 | Waste disposal system applied in production of cement dry-process rotary kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202691846U CN201589272U (en) | 2009-12-31 | 2009-12-31 | Waste disposal system applied in production of cement dry-process rotary kiln |
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| CN201589272U true CN201589272U (en) | 2010-09-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786809B (en) * | 2009-12-31 | 2012-09-19 | 安徽海螺建材设计研究院 | Waste treatment system and treatment method applied in cement dry process kiln production |
| CN103322574A (en) * | 2012-03-21 | 2013-09-25 | 四川国立能源科技有限公司 | Method for co-processing household garbage by using tunnel kiln sintered brick production line and processing system thereof |
| CN103791505A (en) * | 2014-02-13 | 2014-05-14 | 南京工业大学 | Chemical waste disposal system |
| CN105669057A (en) * | 2016-01-15 | 2016-06-15 | 浙江环立环保科技有限公司 | Waste bag and active carbon treatment method |
| CN106338069A (en) * | 2016-10-28 | 2017-01-18 | 荆门市格林美新材料有限公司 | Method for performing direct pyrolysis treatment on waste liquid crystal display panels |
| CN106594767A (en) * | 2017-01-22 | 2017-04-26 | 袁亮国 | Gas amount equivalent replacement device for cement kiln household refuse co-processing and process thereof |
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2009
- 2009-12-31 CN CN2009202691846U patent/CN201589272U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786809B (en) * | 2009-12-31 | 2012-09-19 | 安徽海螺建材设计研究院 | Waste treatment system and treatment method applied in cement dry process kiln production |
| CN103322574A (en) * | 2012-03-21 | 2013-09-25 | 四川国立能源科技有限公司 | Method for co-processing household garbage by using tunnel kiln sintered brick production line and processing system thereof |
| CN103322574B (en) * | 2012-03-21 | 2016-03-30 | 四川国立能源科技有限公司 | Utilize method and the treatment system thereof of tunnel kiln brick sintering production line cooperative disposal house refuse |
| CN103791505A (en) * | 2014-02-13 | 2014-05-14 | 南京工业大学 | Chemical waste disposal system |
| CN105669057A (en) * | 2016-01-15 | 2016-06-15 | 浙江环立环保科技有限公司 | Waste bag and active carbon treatment method |
| CN106338069A (en) * | 2016-10-28 | 2017-01-18 | 荆门市格林美新材料有限公司 | Method for performing direct pyrolysis treatment on waste liquid crystal display panels |
| CN106594767A (en) * | 2017-01-22 | 2017-04-26 | 袁亮国 | Gas amount equivalent replacement device for cement kiln household refuse co-processing and process thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20171231 |