CN105222601B - Method for drying water-contained garbage by using afterheat of cement kiln system - Google Patents
Method for drying water-contained garbage by using afterheat of cement kiln system Download PDFInfo
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- CN105222601B CN105222601B CN201510729729.7A CN201510729729A CN105222601B CN 105222601 B CN105222601 B CN 105222601B CN 201510729729 A CN201510729729 A CN 201510729729A CN 105222601 B CN105222601 B CN 105222601B
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- rubbish
- cement kiln
- waste heat
- tail gas
- grate
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 232
- 239000004568 cement Substances 0.000 title claims abstract description 121
- 238000001035 drying Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 239000007789 gas Substances 0.000 claims description 228
- 239000002918 waste heat Substances 0.000 claims description 119
- 239000003245 coal Substances 0.000 claims description 72
- 239000012855 volatile organic compound Substances 0.000 claims description 44
- 238000007599 discharging Methods 0.000 claims description 34
- 238000001816 cooling Methods 0.000 claims description 26
- 238000002156 mixing Methods 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 15
- 238000000605 extraction Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 description 21
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- 230000003014 reinforcing effect Effects 0.000 description 12
- 238000009826 distribution Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000003912 environmental pollution Methods 0.000 description 6
- 239000005416 organic matter Substances 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 6
- 230000003750 conditioning effect Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 4
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 150000001722 carbon compounds Chemical class 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N sec-butylidene Natural products CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 238000010564 aerobic fermentation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for drying water-contained garbage by using afterheat of a cement kiln system. The method is to use tail gas having the afterheat in the cement kiln system for heating the water-contained garbage; and the water-contained garbage is heated for drying to form dried garbage. The cement kiln system comprises a cement kiln, a grate cooler and a generator; the cement kiln is provided with a decomposition furnace; the decomposition furnace is provided with a first-grade preheater; the heating of the water-contained garbage by using the tail gas having the afterheat in the cement kiln system is to lead out the tail gas having the afterheat in the first-grade preheater for heating the water-contained garbage, to lead out the tail gas having the afterheat in a low-temperature section of the grate cooler for heating the water-contained garbage and to lead out the tail gas having the afterheat in the generator for heating the water-contained garbage. The method can fully use abundant afterheat resource of the cement kiln for drying the water-contained garbage, can save a lot of energy for drying the water-contained garbage, shortens the drying time, decreases the drying floor area, and quickly improves the garbage wet base heat value.
Description
Technical field
The present invention relates to a kind of method and apparatus of the aqueous rubbish of mummification, more particularly to a kind of utilization quality coal in cement kiln systems is remaining
The method of the aqueous rubbish of heat drying.
Background technology
With the continuous expansion of city size, growing and living standards of the people the continuous improvement of urban population,
The yield of domestic waste is gradually increasing.Early in 1996, the municipal refuse amount of clearing of China just reached 100,000,000
Ton, and it is annual with 8% ~ 10% speed growth.The volume of cargo in storage over the years of rubbish reaches more than 60 hundred million tons, and there is more than 200 city in the whole nation
Among being absorbed in the encirclement of rubbish, rubbish stores up the land area occupied up to more than 500,000,000 square metre.
Incineration technology is considered as one of the maximally effective means for realizing daily-life garbage without environmental pollution, minimizing and resource.
But the moisture content of China's house refuse is typically more than 50%, and calorific value is relatively low, and, substantial amounts of moisture also become landfill, burning,
The main source of percolate during the process such as compost.Therefore, in waste incineration, important pre-treatment is exactly to reduce moisture content.
At present garbage burning factory is the moisture content for reducing crude waste, generally by the way of biological dewatered, i.e., using micro-
Biological heat energy during biological high-temperature aerobic fermentation produced by organic matter degradation, promotes moisture to steam by process adjustment means
Send out, so as to realize quickly removing moisture removal, but it is biological dewatered generally require 15-30 days time, drying cycle is long, needs rubbish is big
Area spreads out, and the land area of occupancy is larger so that the treating capacity of rubbish is restricted.In terms of heat drying, typically it is used for
Sludge, the application in terms of rubbish heat drying is actually rare.
On the other hand, because the waste heat yield of quality coal in cement kiln systems is huge, but it is not fully utilized, can only passes through
Up to a hundred degrees Celsius of hot gas is entered high-altitude by chimney, and like this, substantial amounts of waste heat is slatterned in vain.Want using these waste heats
Not a duck soup, does not find to carry out mummification to aqueous rubbish using the waste heat of quality coal in cement kiln systems through substantial amounts of patent retrieval
Method and apparatus.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of side of the aqueous rubbish of waste heat mummification of utilization quality coal in cement kiln systems
Method, the residual heat resources that the method can make full use of cement kiln abundant carry out mummification to aqueous rubbish, can save substantial amounts of being used for
The energy of the aqueous rubbish of mummification, shortens drying time, reduces mummification floor space and improves the wet basis calorific value of rubbish rapidly.
In order to solve above-mentioned technical problem, the present invention is using the method for the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems
Aqueous rubbish is heated using the tail gas with waste heat in quality coal in cement kiln systems, aqueous rubbish is formed mummification rubbish by heat drying.
The quality coal in cement kiln systems includes cement kiln, grate-cooler and generator, and the cement kiln is furnished with dore furnace, the decomposition
Stove is furnished with one-level preheater, and the grog discharging opening of the cement kiln is connected with the charging aperture of the grate-cooler, in the grate-cooler
The gas outlet of temperature section connects with the air inlet of the generator；The tail gas with waste heat is to aqueous in the utilization quality coal in cement kiln systems
Rubbish heating is to draw in the tail gas with waste heat in one-level preheater to heat aqueous rubbish；And/or, the utilization cement kiln
The tail gas with waste heat is that the tail gas for having waste heat in the low-temperature zone by grate-cooler is drawn to containing to the heating of aqueous rubbish in system
Water rubbish is heated；And/or, the tail gas with waste heat is by generator to the heating of aqueous rubbish in the utilization quality coal in cement kiln systems
Tail gas with waste heat is drawn and aqueous rubbish is heated.
The tail gas extraction in the preheater by one-level with waste heat is will be with waste heat from the gas outlet of one-level preheater
Tail gas draw, when by one-level preheater with waste heat tail gas draw aqueous rubbish heat after, after heat release tail gas company
The blower fan air inlet of grate-cooler high temperature section is introduced with the vapor and VOCs volatile organic matters discharged in the aqueous rubbish from after heating
Mouthful, to the clinker cooling in grate-cooler, and the high temperature section gas outlet after mixing with tertiary air through grate-cooler enters dore furnace；
Described draw in the tail gas with waste heat in grate-cooler is the tail that the gas outlet of grate-cooler low-temperature zone is had into waste heat
Gas draw, when in grate-cooler low-temperature zone with waste heat tail gas draw aqueous rubbish is heated after, the tail gas after heat release together with from
The vapor discharged in aqueous rubbish after heating and VOCs volatile organic matters introduce the fan air inlet of grate-cooler high temperature section, right
Clinker cooling in grate-cooler, and send into dore furnace through the high temperature section gas outlet of grate-cooler after mixing with tertiary air；
Described draw in the tail gas with waste heat in generator is to draw in the tail gas with waste heat from generator gas outlet,
After the extraction of the tail gas with waste heat is heated to aqueous rubbish in generator, the tail gas after heat release is together with the aqueous rubbish from after heating
The vapor of middle discharge and VOCs volatile organic matters introduce grate-cooler high temperature section, to the clinker cooling in grate-cooler, and with three
Dore furnace is entered after secondary wind mixing through the high temperature section gas outlet of grate-cooler.
The temperature of the high temperature section of the grate-cooler 2 is 800 ~ 900 degrees Celsius.
The exhaust temperature of the quality coal in cement kiln systems is 100 ~ 400 degrees Celsius.
The exhaust temperature of the quality coal in cement kiln systems is 100 ~ 200 degrees Celsius, 200 ~ 300 degrees Celsius or 300 ~ 400 degrees Celsius.
Aqueous rubbish is during heating in tiling and motion state, the direction of motion of the tail gas and aqueous rubbish
The direction of motion it is contrary.
The air quantity of the tail gas is 23000m3/h~85000m3/ h, the speed of service of aqueous rubbish is 0.6 ~ 1.5 m/min
Clock, drying time is 3 ~ 5 hours.
Quality coal in cement kiln systems, and the imperfect combustion in dore furnace will be sent into after mummification refuse breaking to 50mm ~ 120mm.
The aqueous rubbish is carried out by the process of heat drying in sealing space.
The present invention has compared with prior art using the method for the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems with following
Beneficial effect.
1st, the technical program is contained as a result of being heated to aqueous rubbish using the tail gas with waste heat in quality coal in cement kiln systems
Water rubbish is formed the technological means of mummification rubbish by heat drying, so, the residual heat resources pair that cement kiln can be made full use of abundant
Aqueous rubbish carries out mummification, can save the substantial amounts of energy for the aqueous rubbish of mummification, shortens drying time, reduces mummification and takes up an area
Area and rapidly the wet basis calorific value of raising rubbish.
2nd, the technical program adds as a result of the tail gas with waste heat in the utilization quality coal in cement kiln systems to aqueous rubbish
Heat is to draw in the tail gas with waste heat in one-level preheater to heat aqueous rubbish；And/or, in the utilization quality coal in cement kiln systems
Tail gas with waste heat is that the tail gas in low-temperature zone by grate-cooler with waste heat is drawn to aqueous rubbish to the heating of aqueous rubbish
Heating；And/or, the tail gas in the utilization quality coal in cement kiln systems with waste heat is to the heating of aqueous rubbish will be in generator with remaining
The tail gas of heat draws the technological means to the heating of aqueous rubbish, so, available temperature section is more, can be according to actual conditions profit
With the waste heat of one of temperature section, or, comprehensively utilize the waste heat of multiple temperature sections aqueous rubbish is carried out it is heating and drying.
3rd, the technical program is pre- from one-level as a result of the tail gas with waste heat is drawn in the preheater by one-level
The gas outlet of hot device draws in the tail gas with waste heat, when the tail gas extraction that will have waste heat in one-level preheater is to aqueous rubbish
After heating, the tail gas after heat release is introduced together with the vapor and VOCs volatile organic matters discharged in the aqueous rubbish from after heating and combed
The fan air inlet of cold high temperature section, to the clinker cooling in grate-cooler, and through the high temperature of grate-cooler after mixing with tertiary air
Section gas outlet enters the technological means of dore furnace, so, can not only accelerate the cooling of grog, moreover, it is also possible to VOCs is waved
The property sent out organic matter decomposes in dore furnace as fuel combustion, forms innocuous substance, it is to avoid VOCs volatile organic matters are mixed into sky
Environmental pollution is caused in gas.
It is again by the gas outlet of grate-cooler low-temperature zone as a result of described draw in the tail gas in grate-cooler with waste heat
Tail gas with waste heat is drawn, after the extraction of the tail gas with waste heat is heated to aqueous rubbish in grate-cooler low-temperature zone, after heat release
Tail gas introduce grate-cooler high temperature section together with the vapor and VOCs volatile organic matters discharged in the aqueous rubbish from after heating
Fan air inlet, to the clinker cooling in grate-cooler, and sends into after mixing with tertiary air through the high temperature section gas outlet of grate-cooler
The technological means of dore furnace, so, can not only accelerate the cooling of grog, moreover, it is also possible to VOCs volatile organic matters are existed
Decompose as fuel combustion in dore furnace, form innocuous substance, it is to avoid VOCs volatile organic matters are mixed in air and cause environment
Pollution.
Due also to employ it is described by generator with waste heat tail gas draw be will be with remaining from generator gas outlet
Heat tail gas draw, when in generator with waste heat tail gas draw aqueous rubbish is heated after, the tail gas after heat release together with from
After heating in aqueous rubbish discharge vapor and VOCs volatile organic matters introduce grate-cooler high temperature section, to grate-cooler in it is ripe
Material cooling, and the technological means of dore furnace is entered after mixing with tertiary air through the high temperature section gas outlet of grate-cooler, so, not only
The cooling of grog can be accelerated, moreover, it is also possible to VOCs volatile organic matters be decomposed in dore furnace as fuel combustion, shape
Into innocuous substance, it is to avoid VOCs volatile organic matters are mixed in air and cause environmental pollution.
4th, technical scheme is 800 ~ 900 degrees Celsius of technological means as a result of the temperature of the high temperature section of the grate-cooler 2,
So, after this temperature section, most VOCs is oxidized and decomposes the tail gas containing VOCs that rubbish drying is discharged, and utilizes
Cement kiln its own system has processed stench, reduces the discharge of VOCs gases.
5th, technical scheme is as a result of the technology hand that the exhaust temperature of the quality coal in cement kiln systems is 100 ~ 400 degrees Celsius
Section, so, the low-temperature zone waste heat of cement kiln is not only taken full advantage of, and rubbish, VOCs gases and evil are dried below 400 degree
Smelly volatilization is less.
6th, technical scheme is as a result of the technology hand that the exhaust temperature of the quality coal in cement kiln systems is 100 ~ 200 degrees Celsius
Section, so, the low-temperature zone waste heat of cement kiln, and the drying rubbish below 200 degree are taken full advantage of, not only VOCs gases and evil
Smelly volatilization is less, and rubbish will not also occur pyrolytic reaction, and garbage drying bed operating is steady.When the tail using the quality coal in cement kiln systems
When temperature degree is 200 ~ 300 degrees Celsius, then the low-temperature zone waste heat of cement kiln can be made full use of.When using 200 ~ 300 degrees Celsius of bakings
During dry rubbish, not only VOCs gases and stench volatilization are less, and, rubbish heat exchange efficiency is higher.When using the cement kiln system
When the exhaust temperature of system is 300 ~ 400 degrees Celsius, then rubbish heat exchange efficiency highest, the drying bed speed of service is accelerated, drying time
Shorten, garbage drying efficiency is improved.
7th, technical scheme is in tiling and motion state, the tail gas as a result of aqueous rubbish during heating
The direction of motion and aqueous rubbish the direction of motion conversely, so, can not only greatly improve the drying efficiency of aqueous rubbish, and
And, the aqueous rubbish of continuously mummification can also be realized.
8th, technical scheme is 23000m as a result of the air quantity of the tail gas3/h~85000m3/ h, the operation of aqueous rubbish
Speed is 0.6 ~ 1.5 m/min, and drying time is the technological means of 3 ~ 5 hours, so, greatly improve the mummification of aqueous rubbish
Quality.
9th, technical scheme is as a result of the technology by quality coal in cement kiln systems is sent into after mummification refuse breaking to 50mm ~ 120mm
Means, so, crush after mummification rubbish can in dore furnace imperfect combustion, the organic matter in rubbish is through imperfect combustion
Afterwards, carbon dioxide is not generated, but generates the undersaturated three keys nytrons such as methane, hydrogen, isopentane, normal butane, propylene
Thing, double bond hydrocarbon and five carbon compounds, these compounds can be reduced as the reducing substances of removing nitrogen oxides
The discharge of nitrogen oxides.
10th, technical scheme is the skill carried out in sealing space by the process of heat drying as a result of the aqueous rubbish
Art means, so, the waste heat of quality coal in cement kiln systems not only can be further made full use of, furthermore, it is possible to greatly reduce in rubbish
Pollution of the gas to environment.
Description of the drawings
With reference to the accompanying drawings and detailed description to the present invention using the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems
Method is described in further detail.
Fig. 1 is the structural representation of the first drying bed of present embodiment.
Fig. 2 for Fig. 1 drying bed in rotary-belt bed surface structural representation.
Fig. 3 is the structural representation of second drying bed of present embodiment.
Fig. 4 for Fig. 3 drying bed in rotary-belt bed surface structural representation.
Fig. 5 for present embodiment drying bed in the first bed board main structure diagram.
Fig. 6 for present embodiment drying bed in the first bed board overlooking the structure diagram.
Fig. 7 for present embodiment drying bed in the first bed board present invention looks up structural representation.
Fig. 8 for present embodiment drying bed in second bed board main structure diagram.
Fig. 9 for present embodiment drying bed in second bed board overlooking the structure diagram.
Figure 10 for present embodiment drying bed in second bed board present invention looks up structural representation.
Figure 11 for present embodiment drying bed in the third bed board main structure diagram.
Figure 12 for present embodiment drying bed in the third bed board overlooking the structure diagram.
Figure 13 for present embodiment drying bed in the third bed board present invention looks up structural representation.
Figure 14 for present embodiment drying bed in the first gas distributing pipeline structural representation.
Figure 15 for present embodiment drying bed in second gas distributing pipeline structural representation.
Figure 16 for present embodiment drying bed in the third gas distributing pipeline structural representation.
Figure 17 for present embodiment drying bed in the 4th kind of gas distributing pipeline structural representation.
Figure 18 is the structural representation of present embodiment anhydration system.
Figure 19 has the structural representation of the anhydration system of the drying bed of multiple parallel distributions for present embodiment.
Figure 20 has the structural representation of the anhydration system of the drying bed of multiple radiation profiles for present embodiment.
Description of reference numerals is as follows.
1 ~ cement kiln；
1-1 ~ dore furnace；
1-2 ~ one-level preheater；
2 ~ grate-cooler；
2-1 ~ blower fan；
3 ~ generator；
3-1 ~ blower fan；
3-2 ~ conditioning Tower；
3-3 ~ raw mill；
3-4 ~ sack cleaner；
3-5 ~ blower fan；
3-6 ~ chimney；
4 ~ sack cleaner；
4-1 ~ blower fan；
5 ~ drying bed；
5-1 ~ sprocket wheel；
5-2 ~ circumversion chain；
5-3 ~ bed board；
5-4 ~ flexible attachment components；
5-5 ~ seal casinghousing；
5-6 ~ charging aperture；
5-7 ~ discharging opening；
5-8 ~ air inlet；
5-9 ~ gas outlet；
5-10 ~ draw flitch；
5-11 ~ gas distributing pipeline；
5-12 ~ qi-emitting hole；
5-13 ~ sepage air-vent；
5-14 ~ reinforcing plate；
5-15 ~ gear mud reinforcing plate；
6 ~ rubbish feed bin；
7 ~ belt feeder；
8 ~ belt feeder；
9 ~ storage bin；
10 ~ belt feeder；
11 ~ disintegrating machine；
12 ~ bucket elevator.
Specific embodiment
As shown in figure 18, present embodiment provides a kind of method of the aqueous rubbish of waste heat mummification of utilization quality coal in cement kiln systems,
Aqueous rubbish is heated using the tail gas with waste heat in quality coal in cement kiln systems, aqueous rubbish is formed mummification rubbish by heat drying.
Present embodiment is aqueous as a result of being heated to aqueous rubbish using the tail gas with waste heat in quality coal in cement kiln systems
Rubbish is formed the technological means of mummification rubbish by heat drying, so, the abundant residual heat resources of cement kiln can be made full use of to containing
Water rubbish carries out mummification, can save the substantial amounts of energy for the aqueous rubbish of mummification, shortens drying time, reduces mummification and takes up an area face
Product and rapidly the wet basis calorific value of raising rubbish.
Improve as one kind of present embodiment, as shown in figure 18, the quality coal in cement kiln systems includes cement kiln 1, grate-cooler 2
With generator 3, the cement kiln 1 is furnished with dore furnace 1-1, and the dore furnace 1-1 is furnished with one-level preheater 1-2, the cement kiln 1
Grog discharging opening connect with the charging aperture of the grate-cooler 2, gas outlet and the generator 3 of the middle-temperature section of the grate-cooler 2
Air inlet connection；The tail gas with waste heat is by one-level preheater 1- to the heating of aqueous rubbish in the utilization quality coal in cement kiln systems
The tail gas with waste heat is drawn and aqueous rubbish is heated in 2.It is of course also possible to be that there is waste heat in the utilization quality coal in cement kiln systems
Tail gas to aqueous rubbish heating be will in the low-temperature zone of grate-cooler 2 with waste heat tail gas draw to aqueous rubbish heat.Also
Can be that the tail gas with waste heat is will have waste heat in generator 3 to the heating of aqueous rubbish in the utilization quality coal in cement kiln systems
Tail gas is drawn and aqueous rubbish is heated.
Present embodiment is heated as a result of the tail gas with waste heat in the utilization quality coal in cement kiln systems to aqueous rubbish
It is to draw in the tail gas with waste heat in one-level preheater to heat aqueous rubbish；And/or, have in the utilization quality coal in cement kiln systems
The tail gas having surplus heat is that the tail gas in low-temperature zone by grate-cooler with waste heat is drawn aqueous rubbish is added to the heating of aqueous rubbish
Heat；And/or, the tail gas with waste heat is will have waste heat in generator to the heating of aqueous rubbish in the utilization quality coal in cement kiln systems
Tail gas draw to aqueous rubbish heating technological means, so, available temperature section is more, can be utilized according to actual conditions
The waste heat of one of temperature section, or, comprehensively utilize the waste heat of multiple temperature sections aqueous rubbish is carried out it is heating and drying.
Further improve as present embodiment, as shown in figure 18, there is waste heat in the preheater 1-2 by one-level
It is to draw in the tail gas with waste heat from the gas outlet of one-level preheater 1-2 that tail gas is drawn, when will have in one-level preheater 1-2
After the tail gas of waste heat is drawn to the heating of aqueous rubbish, the tail gas after heat release is together with the vapor discharged in the aqueous rubbish from after heating
With the fan air inlet that VOCs volatile organic matters introduce the high temperature section of grate-cooler 2, to the clinker cooling in grate-cooler 2, and with three
Dore furnace 1-1 is entered after secondary wind mixing through the high temperature section gas outlet of grate-cooler 2.
Described is that the gas outlet of the low-temperature zone of grate-cooler 2 is had into waste heat by the tail gas with waste heat is drawn in grate-cooler 2
Tail gas draw, when in the low-temperature zone of grate-cooler 2 with waste heat tail gas draw aqueous rubbish is heated after, the tail gas after heat release together with
The vapor discharged in aqueous rubbish from after heating and VOCs volatile organic matters introduce the blower fan air inlet of the high temperature section of grate-cooler 2
Mouthful, to the clinker cooling in grate-cooler 2, and dore furnace is sent into through the high temperature section gas outlet of grate-cooler 2 after mixing with tertiary air
1-1。
Described is to draw in the tail gas with waste heat from the gas outlet of generator 3 by the tail gas with waste heat is drawn in generator 3
Go out, after the extraction of the tail gas with waste heat is heated to aqueous rubbish in generator 3, the tail gas after heat release is together with aqueous from after heating
The vapor discharged in rubbish and VOCs volatile organic matters introduce the high temperature section of grate-cooler 2, to the clinker cooling in grate-cooler, and
High temperature section gas outlet after mixing with tertiary air through grate-cooler 2 enters dore furnace 1-1.
It is from one-level preheating that present embodiment is drawn as a result of the tail gas with waste heat in the preheater by one-level
The gas outlet of device draws in the tail gas with waste heat, and aqueous rubbish is added when the tail gas with waste heat in one-level preheater is drawn
After heat, the tail gas after heat release introduces cooling together with the vapor and VOCs volatile organic matters discharged in the aqueous rubbish from after heating
The fan air inlet of machine high temperature section, to the clinker cooling in grate-cooler, and through the high temperature section of grate-cooler after mixing with tertiary air
Gas outlet enters the technological means of dore furnace, so, can not only accelerate the cooling of grog, moreover, it is also possible to VOCs is volatilized
Property organic matter in dore furnace as fuel combustion decompose, formed innocuous substance, it is to avoid VOCs volatile organic matters are mixed into air
In cause environmental pollution.
It is again by the gas outlet of grate-cooler low-temperature zone as a result of described draw in the tail gas in grate-cooler with waste heat
Tail gas with waste heat is drawn, after the extraction of the tail gas with waste heat is heated to aqueous rubbish in grate-cooler low-temperature zone, after heat release
Tail gas introduce grate-cooler high temperature section together with the vapor and VOCs volatile organic matters discharged in the aqueous rubbish from after heating
Fan air inlet, to the clinker cooling in grate-cooler, and sends into after mixing with tertiary air through the high temperature section gas outlet of grate-cooler
The technological means of dore furnace, so, can not only accelerate the cooling of grog, moreover, it is also possible to VOCs volatile organic matters are existed
Decompose as fuel combustion in dore furnace, form innocuous substance, it is to avoid VOCs volatile organic matters are mixed in air and cause environment
Pollution.
Due also to employ it is described by generator with waste heat tail gas draw be will be with remaining from generator gas outlet
Heat tail gas draw, when in generator with waste heat tail gas draw aqueous rubbish is heated after, the tail gas after heat release together with from
After heating in aqueous rubbish discharge vapor and VOCs volatile organic matters introduce grate-cooler high temperature section, to grate-cooler in it is ripe
Material cooling, and the technological means of dore furnace is entered after mixing with tertiary air through the high temperature section gas outlet of grate-cooler, so, not only
The cooling of grog can be accelerated, moreover, it is also possible to VOCs volatile organic matters be decomposed in dore furnace as fuel combustion, shape
Into innocuous substance, it is to avoid VOCs volatile organic matters are mixed in air and cause environmental pollution.
Further improve as present embodiment, as shown in figure 18, the temperature of the high temperature section of the grate-cooler 2 is 800 ~
900 degrees Celsius.
Present embodiment is 800 ~ 900 degrees Celsius of technological means as a result of the temperature of the high temperature section of the grate-cooler 2,
So, after this temperature section, most VOCs is oxidized and decomposes the tail gas containing VOCs that rubbish drying is discharged, and utilizes
Cement kiln its own system has processed stench, reduces the discharge of VOCs gases.
Also further improve as present embodiment, as shown in figure 18, the exhaust temperature of the quality coal in cement kiln systems is 100
~ 400 degrees Celsius.
Present embodiment is as a result of the technology hand that the exhaust temperature of the quality coal in cement kiln systems is 100 ~ 400 degrees Celsius
Section, so, the low-temperature zone waste heat of cement kiln is not only taken full advantage of, and rubbish, VOCs gases and evil are dried below 400 degree
Smelly volatilization is less.
Used as present embodiment improvement further, as shown in figure 18, the exhaust temperature of the quality coal in cement kiln systems is 100
~ 200 degrees Celsius, 200 ~ 300 degrees Celsius or 300 ~ 400 degrees Celsius.
Present embodiment is as a result of the technology hand that the exhaust temperature of the quality coal in cement kiln systems is 100 ~ 200 degrees Celsius
Section, so, the low-temperature zone waste heat of cement kiln, and the drying rubbish below 200 degree are taken full advantage of, not only VOCs gases and evil
Smelly volatilization is less, and rubbish will not also occur pyrolytic reaction, and garbage drying bed operating is steady.When the tail using the quality coal in cement kiln systems
When temperature degree is 200 ~ 300 degrees Celsius, then the low-temperature zone waste heat of cement kiln can be made full use of.When using 200 ~ 300 degrees Celsius of bakings
During dry rubbish, not only VOCs gases and stench volatilization are less, and, rubbish heat exchange efficiency is higher.When using the cement kiln system
When the exhaust temperature of system is 300 ~ 400 degrees Celsius, then rubbish heat exchange efficiency highest, the drying bed speed of service is accelerated, drying time
Shorten, garbage drying efficiency is improved.
Further improve as present embodiment, as shown in figure 18, aqueous rubbish is during heating in flat
Paving and motion state, the direction of motion of the tail gas is contrary with the direction of motion of aqueous rubbish.
Present embodiment is in tiling and motion state, the tail gas as a result of aqueous rubbish during heating
The direction of motion and aqueous rubbish the direction of motion conversely, so, can not only greatly improve the drying efficiency of aqueous rubbish, and
And, the aqueous rubbish of continuously mummification can also be realized.
Further improve again as present embodiment, as shown in figure 18, the air quantity of the tail gas is 23000m3/h~
85000m3/ h, the speed of service of aqueous rubbish is 0.6 ~ 1.5 m/min, and drying time is 3 ~ 5 hours.
Present embodiment is 23000m as a result of the air quantity of the tail gas3/h~85000m3/ h, the operation of aqueous rubbish
Speed is 0.6 ~ 1.5 m/min, and drying time is the technological means of 3 ~ 5 hours, so, greatly improve the mummification of aqueous rubbish
Quality.
As present embodiment improvement still further, as shown in figure 18, by mummification refuse breaking to 50mm ~ 120mm
After send into quality coal in cement kiln systems, and the imperfect combustion in dore furnace.
Present embodiment is as a result of the technology by quality coal in cement kiln systems is sent into after mummification refuse breaking to 50mm ~ 120mm
Means, so, crush after mummification rubbish can in dore furnace imperfect combustion, the organic matter in rubbish is through imperfect combustion
Afterwards, carbon dioxide is not generated, but generates the undersaturated three keys nytrons such as methane, hydrogen, isopentane, normal butane, propylene
Thing, double bond hydrocarbon and five carbon compounds, these compounds can be reduced as the reducing substances of removing nitrogen oxides
The discharge of nitrogen oxides.
Further improve again as present embodiment, as shown in figure 18, process of the aqueous rubbish by heat drying
Carry out in sealing space.
Present embodiment is the skill carried out in sealing space by the process of heat drying as a result of the aqueous rubbish
Art means, so, the waste heat of quality coal in cement kiln systems not only can be further made full use of, furthermore, it is possible to greatly reduce in rubbish
Pollution of the gas to environment.
As shown in Figures 1 to 4, the drying bed 5 of the aqueous rubbish of waste heat mummification of a kind of utilization quality coal in cement kiln systems, including by passing
The rotary-belt bed surface that motivation structure drives, is distributed with sepage air-vent 5-13, the rotary-belt on the rotary-belt bed surface
The rear end of bed surface is feed end, and the front end of the rotary-belt bed surface is discharge end, and the rotary-belt bed surface is located at capsul
In body 5-5, the feed end of the corresponding rotary-belt bed surfaces of the seal casinghousing 5-5 is respectively arranged with charging aperture 5-6 and outlet
The discharge end of the corresponding rotary-belt bed surface of mouth 5-9, the seal casinghousing 5-5 is respectively arranged with discharging opening 5-7 and air inlet
5-8。
Present embodiment as a result of drying bed, including the rotary-belt bed surface driven by transmission mechanism, the revolution
Sepage air-vent is distributed with belt bed surface, the rear end of the rotary-belt bed surface is feed end, the rotary-belt bed surface
Front end is discharge end, and the rotary-belt bed surface is located in seal casinghousing, the corresponding rotary-belt bed surface of the seal casinghousing
Feed end be respectively arranged with charging aperture and gas outlet, the discharge end difference of the seal casinghousing correspondence rotary-belt bed surface
The technological means of discharging opening and air inlet is provided with, so, the abundant residual heat resources of cement kiln can be made full use of to aqueous rubbish
Rubbish carries out mummification, can save the substantial amounts of energy for the aqueous rubbish of mummification, greatly shortens drying time, greatly reduces mummification and accounts for
Ground area and rapidly the wet basis calorific value of raising rubbish.
Improve as one kind of present embodiment, as shown in Figures 1 to 4, in same seal casinghousing 5-5, the revolution
Belt bed surface has one.It is of course also possible to be that in same seal casinghousing 5-5, the rotary-belt bed surface has multiple, Duo Gesuo
State the juxtaposition distribution in the same direction of rotary-belt bed surface.
During present embodiment is as a result of same seal casinghousing, the rotary-belt bed surface at least one, it is multiple
The technological means of rotary-belt bed surface juxtaposition distribution in the same direction, so, various mummification can be produced according to the demand of different clients
Bed.
Further improve as present embodiment, as shown in figure 1 to figure 13, the rotary-belt bed surface includes two phases
The outer peripheral face of mutual parallel circumversion chain 5-2, two circumversion chain 5-2 is connected by the bed board 5-3 of multiple strips, many
The individual bed board 5-3 phase juxtapositions are distributed on the outer peripheral face of two circumversion chain 5-2, and the transmission mechanism includes three groups of chains
Take turns, or including two groups of sprocket wheels, multigroup sprocket wheel can also be included.There are two sprocket wheel 5-1, two sprocket wheels in each group of sprocket wheel
Respectively circumversion chain 5-2 described with two is engaged 5-1, and the length direction of the bed board 5-3 is perpendicular to the end of the sprocket wheel 5-1
Face, the sepage air-vent 5-13 is distributed on the bed board 5-3.
Present embodiment includes two circumversion chains being parallel to each other, two institutes as a result of the rotary-belt bed surface
The outer peripheral face for stating circumversion chain is connected by the bed board of multiple strips, and multiple bed board phase juxtapositions are distributed in described in two and return
Turn on the outer peripheral face of chain, the transmission mechanism includes at least two groups sprocket wheels, there is two sprocket wheels, two sprocket wheels in each group of sprocket wheel
Engage with two circumversion chains respectively, the length direction of the bed board perpendicular to the sprocket wheel end face, sepage air-vent
The technological means being distributed on the bed board, so, simple structure, production is easy, low production cost.
Further improve as present embodiment, as shown in Figures 5 to 7, four edges of the bed board 5-3 are downward
Extension forms reinforcing plate 5-14.It is of course also possible to be that as shown in Fig. 8 to Figure 10, two long edges of the bed board 5-3 are to downward
Shape reinforcing plate 5-14 is stretched, two short edges of the bed board 5-3 upwardly extend to form gear mud reinforcing plate 5-15.Can also be or
Shown in Figure 11 to Figure 13, four edges of the bed board 5-3 are downwardly extending reinforcing plate 5-14, two of the bed board 5-3
Short edge upwardly extends to form gear mud reinforcing plate 5-15.
Present embodiment is downwardly extending the technological means of reinforcing plate, institute as a result of four edges of the bed board
To be greatly improved the strength and stiffness of bed board.It is described when two long edges using the bed board extend downwardly shape reinforcing plate
Two short edges of bed board upwardly extend to be formed gear mud reinforcing plate technological means when, then not only can improve bed board intensity and
Rigidity, moreover, it is also possible to prevent rubbish from sliding from two short edges of bed board.When four edges using the bed board it is downward
Extension forms reinforcing plate, when two short edges of the bed board upwardly extend the technological means to form gear mud reinforcing plate, then not only
The strength and stiffness of bed board can be further improved, moreover, it is also possible to prevent rubbish from sliding from two short edges of bed board.
Also further improve as present embodiment, as shown in figure 1, the sprocket wheel 5-1 is circular chain-wheel, the bed board
Two ends on rear side of 5-3 are hinged respectively by hinge circumversion chain 5-2 described with two, on front side of the bed board 5-3
End is connected by flexible attachment components 5-4 with the circumversion chain 5-2 of the same side.Can also be the bed board 5-3 front sides
Two ends be connected with the circumversion chain 5-2 of the same side by flexible attachment components 5-4 respectively.The flexible joint
The length of part 5-4 is more than the half of the bed board 5-3 width, the square root times less than the 2 of the bed board 5-3 width.
Can also be that as shown in figure 3, the sprocket wheel 5-1 is the sprocket wheel of regular polygon, the number of teeth of sprocket wheel is equal to regular polygon
Side number, corresponding to the space width of the sprocket wheel 5-1, the width of the bed board 5-3 corresponds to for the pitch of the circumversion chain 5-2
The pitch of the circumversion chain 5-2, the bed board 5-3 is fixedly connected with the circumversion chain 5-2.It is described as a kind of preferred
The sprocket wheel of regular polygon is the sprocket wheel of the tooth of quadrangle four or the sprocket wheel or the sprocket wheel of octagon octadentate of the tooth of hexagon six.
Present embodiment is circular chain-wheel as a result of the sprocket wheel, and two on rear side of the bed board end passes through respectively
Hinge is hinged with two circumversion chains, and on front side of the bed board a end is by flexible attachment components and the institute of the same side
Circumversion chain connection is stated, or, two on front side of the bed board end is described with the same side by flexible attachment components respectively
Circumversion chain connects, and the length of the flexible attachment components is more than the half of the bed board width, less than the 2 of the bed board width
Square root times technological means, so, not only can ensure that circumversion chain is normally engaged with sprocket wheel, and, also can ensure that ought
When bed board has just been located at turn around the top of chain, the leading edge of bed board turns forward and falls on circumversion chain.
When the sprocket wheel for using the sprocket wheel being regular polygon, the number of teeth of sprocket wheel is equal to the side number of regular polygon, the revolution
The pitch of chain is corresponding to the space width of the sprocket wheel, and the width of the bed board corresponds to the pitch of the circumversion chain, described
During the technological means that bed board is fixedly connected with the circumversion chain, then can ensure that circumversion chain is normally engaged with sprocket wheel.
Used as present embodiment improvement further, as shown in figures 1 and 3, the charging aperture 5-6 is located at the sealing
The top surface at housing 5-5 rear portions, the gas outlet 5-9 is located at the top surface at the seal casinghousing 5-5 rear portions, the gas outlet 5-9 positions
In the rear of the charging aperture 5-6, the discharging opening 5-7 is located at the bottom of the seal casinghousing 5-5 front end faces, the discharging opening
It is provided between the discharge end of 5-7 and the rotary-belt bed surface and draws flitch 5-10, the air inlet 5-8 is located at the capsul
Body 5-5 anterior bottom surface, the discharge end of the corresponding rotary-belt bed surfaces of the seal casinghousing 5-5 is respectively arranged with discharging opening 5-
7 and air inlet 5-8.
Present embodiment is located at the top surface at the seal casinghousing rear portion, the gas outlet position as a result of the charging aperture
In the top surface at the seal casinghousing rear portion, the gas outlet is located at the rear of the charging aperture, and the discharging opening is located at described close
It is provided between the discharge end of the bottom of capsule body front end face, the discharging opening and the rotary-belt bed surface and draws flitch, it is described
Air inlet is located at the anterior bottom surface of the seal casinghousing, the discharge end difference of the corresponding rotary-belt bed surface of the seal casinghousing
The technological means of discharging opening and air inlet is provided with, so, the charging and discharging of drying bed are not only advantageous to, and, it is also favourable
Air inlet and outlet in drying bed.
Further improve as present embodiment, as shown in Figure 14 and Figure 17, institute is located in the seal casinghousing 5-5
State and gas distributing pipeline 5-11 is distributed with below rotary-belt bed surface, the upper side wall of the gas distributing pipeline 5-11 is distributed with qi-emitting hole 5-
12, one end of the gas distributing pipeline 5-11 connects with the air inlet 5-8.
Present embodiment is distributed with cloth as a result of being located in the seal casinghousing below the rotary-belt bed surface
Feed channel, the upper side wall of the gas distributing pipeline is distributed with qi-emitting hole, and one end of the gas distributing pipeline connects with the air inlet
Technological means, so, it is greatly improved drying efficiency and quality of the waste heat to aqueous rubbish.
Further improve again as present embodiment, as shown in figure 14, the gas distributing pipeline 5-11 has one, in length
The shape of gas distributing pipeline 5-11 is rectangular after bending, bending, and the length of rectangle is slightly less than the length of seal casinghousing 5-5, rectangle
Width be slightly less than the width of seal casinghousing 5-5.Can also be as shown in figure 15, the gas distributing pipeline 5-11 has one, in short distance
Bending, the shape of gas distributing pipeline 5-11 is rectangular after bending, and the length of rectangle is slightly less than the length of seal casinghousing 5-5, the width of rectangle
It is slightly less than the width of seal casinghousing 5-5.
It is, of course, also possible to be as shown in figure 16, the gas distributing pipeline 5-11 has multiple long gas distributing pipeline 5-11, multiple described
Connect with the air inlet 5-8 after one end parallel connection of long gas distributing pipeline 5-11, the shape of the long gas distributing pipeline 5-11 after connection is in
Rectangle, the length of rectangle is slightly less than the length of seal casinghousing 5-5, and the width of rectangle is slightly less than the width of seal casinghousing 5-5.Can be again such as figure
Shown in 16, the gas distributing pipeline 5-11 has multiple short gas distributing pipeline 5-11, and one end of multiple short gas distributing pipeline 5-11 is in parallel
Connect with the air inlet 5-8 afterwards, the shape of the short gas distributing pipeline 5-11 after connection is rectangular, and the length of rectangle is slightly less than capsul
The length of body 5-5, the width of rectangle is slightly less than the width of seal casinghousing 5-5.
Present embodiment has one as a result of the gas distributing pipeline, in long range bending or in short distance bending
Technological means, so, can be with less air quantity to aqueous garbage drying.
When having multiple long gas distributing pipelines using the gas distributing pipeline, with institute after one end parallel connection of multiple long gas distributing pipelines
Air inlet connection is stated, or, the gas distributing pipeline has multiple short gas distributing pipelines, after one end parallel connection of multiple short gas distributing pipelines
During the technological means connected with the air inlet, then larger air quantity is can use to aqueous garbage drying.
As shown in Figure 18 to Figure 20, a kind of anhydration system of the aqueous rubbish of waste heat mummification of utilization quality coal in cement kiln systems, including
As previously described using quality coal in cement kiln systems the aqueous rubbish of waste heat mummification drying bed 5, the air inlet 5-8 of the drying bed 5 with
The waste heat gas outlet connection of quality coal in cement kiln systems.
Mummification of the present embodiment as a result of the aqueous rubbish of waste heat mummification for utilizing quality coal in cement kiln systems as previously described
Bed, the technological means that the air inlet of the drying bed is connected with the waste heat gas outlet of quality coal in cement kiln systems, so, can make full use of
The abundant residual heat resources of cement kiln carry out mummification to aqueous rubbish, can save the substantial amounts of energy for the aqueous rubbish of mummification, contract
Short drying time, reduces mummification floor space and improves the wet basis calorific value of rubbish rapidly.
Improve as one kind of present embodiment, as shown in figure 18, the quality coal in cement kiln systems includes cement kiln 1, grate-cooler 2
With generator 3, the cement kiln 1 is furnished with dore furnace 1-1, and the dore furnace 1-1 is furnished with one-level preheater 1-2, the cement kiln 1
Grog discharging opening connect with the charging aperture of the grate-cooler 2, gas outlet and the generator 3 of the middle-temperature section of the grate-cooler 2
Air inlet connection；The waste heat gas outlet of the quality coal in cement kiln systems is the gas outlet of the one-level preheater 1-2, and/or, it is described
The waste heat gas outlet of quality coal in cement kiln systems is the gas outlet of the low-temperature zone of grate-cooler 2, and/or, the waste heat outlet of the quality coal in cement kiln systems
Mouth is the gas outlet of generator 3.
Present embodiment includes cement kiln, grate-cooler and generator, the cement as a result of the quality coal in cement kiln systems
Kiln is furnished with dore furnace, and the dore furnace is furnished with one-level preheater, the grog discharging opening of the cement kiln and entering for the grate-cooler
Material mouth is connected, and the gas outlet of the grate-cooler middle-temperature section connects with the air inlet of the generator；The quality coal in cement kiln systems it is remaining
Hot gas outlet is the gas outlet of the one-level preheater, and/or, the waste heat gas outlet of the quality coal in cement kiln systems is grate-cooler low temperature
The gas outlet of section, and/or, the waste heat gas outlet of the quality coal in cement kiln systems is the technological means of the gas outlet of generator, so, institute
With, available temperature section is more, and the waste heat of one of temperature section can be utilized according to actual conditions, or, comprehensive utilization
The waste heat of multiple temperature sections carries out heating and drying to aqueous rubbish.
Further improve as present embodiment, as shown in figure 18, the gas outlet of the generator 3 passes through blower fan 3-1
Connect with the air inlet 5-8 of the drying bed 5, the gas outlet of the blower fan 3-1 also connects the air inlet of conditioning Tower 3-2, described
The gas outlet of conditioning Tower 3-2 connects the air inlet of raw mill 3-3, the gas outlet connection sack cleaner 3-4 of the raw mill 3-3
Air inlet, the gas outlet of the sack cleaner 3-4 is connected by blower fan 3-5 with the air inlet of chimney 3-6.
Present embodiment is connected by blower fan as a result of the gas outlet of the generator with the air inlet of the drying bed
Logical technological means, so, the air quantity discharged from generator gas outlet can be greatly increased.And going out as a result of the blower fan
Gas port also connects the air inlet of conditioning Tower, and the gas outlet of the conditioning Tower connects the technological means of the air inlet of raw mill, so,
Raw material can also be heated.Due also to the gas outlet for employing the raw mill connects the air inlet of sack cleaner, institute
The technological means that the gas outlet of sack cleaner is connected by blower fan with the air inlet of chimney is stated, so, be conducive to environmental protection.
Further improve as present embodiment, as shown in figure 18, the gas outlet of the low-temperature zone of the grate-cooler 2 also connects
The air inlet of logical sack cleaner 4, the gas outlet of the sack cleaner 4 connects the air inlet of blower fan 4-1.
Present embodiment also connects the air inlet of sack cleaner as a result of the gas outlet of the grate-cooler low-temperature zone,
The technological means of the air inlet of the gas outlet connection blower fan of the sack cleaner, so, unnecessary waste heat can be used for other
Aspect.
Also further improve as present embodiment, as shown in figure 18, the gas outlet 5-9 of the drying bed 5 with it is described
The fan air inlet connection of the high temperature section of grate-cooler 2, the air inlet of the gas outlet of the high temperature section of the grate-cooler 2 and the dore furnace 1-1
Mouth connection.As one kind preferably, the air inlet of the dore furnace 1-1 is located at the bottleneck of dore furnace 1-1 bottoms.
Present embodiment is as a result of the gas outlet of the drying bed and the fan air inlet of the grate-cooler high temperature section
Connection, the gas outlet of the grate-cooler high temperature section connects with the air inlet of the dore furnace, and the air inlet of the dore furnace is located at
The technological means of the bottleneck of the decomposition furnace bottom, so, can not only accelerate the cooling of grog, moreover, it is also possible to by VOCs
Volatile organic matter decomposes in dore furnace as fuel combustion, forms innocuous substance, it is to avoid VOCs volatile organic matters are mixed into
Environmental pollution is caused in air.
Used as present embodiment improvement further, as shown in figure 19, the drying bed 5 has multiple, multiple described dry
Change the distribution of the juxtaposition in the same direction of bed 5.It is of course also possible to be as shown in figure 20, the drying bed 5 has multiple, multiple drying beds 5 are same
To radiation profiles.
Present embodiment has multiple as a result of the drying bed, the juxtaposition distribution in the same direction of the multiple drying beds, or,
The technological means of multiple drying beds radiation profiles in the same direction, so, can be under conditions of mummification bed length not be increased, significantly
Increase the yield of mummification rubbish.
Further improve as present embodiment, as shown in figure 18, the charging aperture 5-6 of the drying bed 5 passes through band
Formula feeder 7 is connected with the discharging opening of rubbish feed bin 6, and the discharging opening 5-7 of the drying bed 5 is by belt feeder 8 and storing
The charging aperture connection in storehouse 9, the discharging opening of the storage bin 9 is connected by belt feeder 10 with the charging aperture of disintegrating machine 11, institute
The discharging opening for stating disintegrating machine 11 is connected with the charging aperture of bucket elevator 12, the discharging opening of the bucket elevator 12 and the dore furnace 1-1
Charging aperture connection.
The discharging that present embodiment passes through belt feeder and rubbish feed bin as a result of the charging aperture of the drying bed
Mouth connection, the discharging opening of the drying bed is connected by belt feeder with the charging aperture of storage bin, the discharging of the storage bin
Mouth is connected by belt feeder with the charging aperture of disintegrating machine, and the discharging opening of the disintegrating machine is connected with the charging aperture of bucket elevator,
The technological means that the discharging opening of the bucket elevator is connected with the charging aperture of the dore furnace, so, be capable of achieving from aqueous rubbish to
Mummification rubbish, the continuous processing from mummification rubbish to shredding refuse, from shredding refuse to combustion refuse.
Further improve again as present embodiment, as shown in figure 19, the shape of the rubbish feed bin 6 is in strip
Shape, the side of the rubbish feed bin 6 is distributed with multiple charging apertures, and the opposite side of the rubbish feed bin 6 is distributed with multiple discharging openings,
The shape of the storage bin 9 is elongated, and the side of the storage bin 9 is distributed with multiple charging apertures, the storage bin 9 it is another
Side is distributed with multiple discharging openings, and the rubbish feed bin 6 is in parallel distribution with the storage bin 9.It is of course also possible to be such as Figure 20 institutes
Show, the shape of the rubbish feed bin 6 is in little curvature circular arc, and the convex side of the rubbish feed bin 6 is distributed with multiple charging apertures, described
The concave side of rubbish feed bin 6 is distributed with multiple discharging openings, and the shape of the storage bin 9 is in deep camber circular arc, the storage bin 9
Convex side is distributed with multiple charging apertures, and the concave side of the storage bin 9 is distributed with the concave side middle part of multiple discharging openings or the storage bin 9
It is provided with a discharging opening.
Present embodiment is elongated as a result of the shape of the rubbish feed bin, the side distribution of the rubbish feed bin
The opposite side for having multiple charging apertures, the rubbish feed bin is distributed with multiple discharging openings, and the shape of the storage bin is elongated, institute
The side for stating storage bin is distributed with multiple charging apertures, and the opposite side of the storage bin is distributed with multiple discharging openings, the rubbish
Storehouse and technological means of the storage bin in parallel distribution, so, it is not only advantageous to the parallel distribution of drying bed.When using described
The shape of rubbish feed bin is in little curvature circular arc, and the convex side of the rubbish feed bin is distributed with multiple charging apertures, the rubbish feed bin
Concave side be distributed with multiple discharging openings, the shape of the storage bin is in deep camber circular arc, and the convex side of the storage bin is distributed with
Multiple charging apertures, the concave side of the storage bin is distributed with the concave side middle part of multiple discharging openings or the storage bin and is provided with one and
The technological means of material mouth, then be conducive to the radiation profiles of drying bed.
Moisture content is 63.5% Beijing's transfer station house refuse 300t/d, and rubbish is laid in borehole structure
Drying bed on, rubbish thickness be 20 centimetres；The bed board of drying bed is steel plate, is covered with circular hole, and bore dia is 20 millimeters.Drying bed
Width is 35 meters, and length is 150 meters；Using internal block have the high temperature resistant airduct of refractory material by 350 degree of waste gas of cement kiln tail,
75000m3/ h inversely sends into garbage drying bed, i.e.,：The traffic direction of waste gas and garbage drying bed is conversely, carry out rubbish heat drying.
The speed of service for controlling drying bed is 0.56 m/min, and drying time is 4.5 hours, and after heat drying, house refuse contains
Water rate is reduced to 18.9 % from 63.5%.The VOCs materials that mummification is produced send the high temperature section of 850 degree of grate-cooler back to as cooling air
Cooling grog, the oxygen content of generation is that 8% gas mixes with tertiary air, feeding dore furnace；By after mummification, moisture content
Rubbish for 18.9% delivers to warehouse by chain scraper conveyor, is crushed to after 80mm and is admitted to cement kiln dore furnace by elevator,
The oxygen content that mixing is produced is adopted not exclusively to burn rubbish for the tertiary air of the gas of 9.5 %, it is possible to decrease cement kiln nitrogen oxidation
Thing 8.6%.
Moisture content is house refuse 200t/d of 55% Beijing's composting plant, and rubbish is laid in borehole structure
Drying bed on, rubbish thickness be 25 centimetres；Drying bed is steel plate, is covered with circular hole, and bore dia is 25 millimeters.Drying bed width is
45 meters, length is 160 meters；Using internal block have the high temperature resistant airduct of refractory material by 375 degree of waste gas of cement kiln tail,
50000m3/ h inversely sends into garbage drying bed, i.e.,：The traffic direction of waste gas and garbage drying bed is conversely, carry out rubbish heat drying.
The speed of service for controlling drying bed is 0.7 m/min, and drying time is 4.0 hours, and after heat drying, house refuse contains
Water rate is reduced to 17.5% from 55%.The high temperature section that the VOCs materials that mummification is produced send 900 degree of grate-cooler back to is cold as cooling air
But grog, the oxygen content of generation is that 9.8% gas mixes with tertiary air, sends into dore furnace；By after mummification, moisture content
Rubbish for 17.5% delivers to warehouse by chain scraper conveyor, is crushed to after 100mm and is admitted to cement kiln decomposition by elevator
Stove, adopts the oxygen content that mixing is produced not exclusively to burn rubbish for the tertiary air of the gas of 10 %, it is possible to decrease cement kiln nitrogen oxygen
Compound 7.8%.
Moisture content is the old screen residue of waste 500t/d of 45% Beijing's landfill yard, and rubbish is laid in circle
On the drying bed of pore structure, rubbish thickness is 25 centimetres；Drying bed is steel plate, is covered with circular hole, and bore dia is 30 millimeters.Drying bed
Width is 40 meters, and length is 100 meters；Using internal block have the high temperature resistant airduct of refractory material by 280 degree of waste gas of cement kiln tail,
50000m3/ h inversely sends into garbage drying bed, i.e.,：The traffic direction of waste gas and garbage drying bed is conversely, carry out rubbish heat drying.
The speed of service for controlling drying bed is 0.56 m/min, and drying time is 3.0 hours, and after heat drying, house refuse contains
Water rate is reduced to 15% from 45%.The VOCs materials that mummification is produced are sent the high temperature section of 800 degree of grate-cooler back to and are cooled down as cooling air
Grog, the oxygen content of generation is that 7.5% gas mixes with tertiary air, sends into dore furnace；It is by after mummification, moisture content
15% rubbish delivers to warehouse by chain scraper conveyor, is crushed to after 60mm and is admitted to cement kiln dore furnace by elevator, adopts
The oxygen content that mixing is produced is that the tertiary air of the gas of 9.3 % not exclusively burns rubbish, it is possible to decrease cement kiln nitrogen oxides
8.9%。
Claims (8)
1. the method for the aqueous rubbish of waste heat mummification of a kind of utilization quality coal in cement kiln systems, it is characterised in that：Using in quality coal in cement kiln systems
Tail gas with waste heat is heated to aqueous rubbish, and aqueous rubbish is formed mummification rubbish by heat drying；The quality coal in cement kiln systems includes
Cement kiln (1), grate-cooler (2) and generator (3), the cement kiln (1) is furnished with dore furnace (1-1), and the dore furnace (1-1) is matched somebody with somebody
The grog discharging opening for having one-level preheater (1-2), the cement kiln (1) is connected with the charging aperture of the grate-cooler (2), the comb
The gas outlet of cold (2) middle-temperature section connects with the air inlet of the generator (3)；There is waste heat in the utilization quality coal in cement kiln systems
Tail gas to aqueous rubbish heating be will in one-level preheater (1-2) with waste heat tail gas draw to aqueous rubbish heat；With/
Or, the tail gas with waste heat is will have in the low-temperature zone of grate-cooler (2) to the heating of aqueous rubbish in the utilization quality coal in cement kiln systems
The tail gas having surplus heat is drawn and aqueous rubbish is heated；And/or, the tail gas with waste heat is to aqueous in the utilization quality coal in cement kiln systems
Rubbish heating is to draw in the tail gas with waste heat in generator (3) to heat aqueous rubbish；It is described by one-level preheater (1-2)
In there is the tail gas of waste heat to draw be to draw in the tail gas with waste heat from the gas outlet of one-level preheater (1-2), when by one-level
After the tail gas with waste heat is drawn to the heating of aqueous rubbish in preheater (1-2), the tail gas after heat release is together with aqueous from after heating
The vapor discharged in rubbish and VOCs volatile organic matters introduce the fan air inlet of grate-cooler (2) high temperature section, to grate-cooler
(2) clinker cooling in, and send into dore furnace (1-1) through the high temperature section gas outlet of grate-cooler (2) after mixing with tertiary air；
It is that the gas outlet of grate-cooler (2) low-temperature zone is had into waste heat that the tail gas with waste heat is drawn in (2) by grate-cooler
Tail gas is drawn, and after the extraction of the tail gas with waste heat is heated to aqueous rubbish in grate-cooler (2) low-temperature zone, the tail gas after heat release connects
The blower fan for introducing grate-cooler (2) high temperature section with the vapor and VOCs volatile organic matters discharged in the aqueous rubbish from after heating enters
Gas port, to the clinker cooling in grate-cooler (2), and sends into after mixing with tertiary air through the high temperature section gas outlet of grate-cooler (2)
Dore furnace (1-1)；
It is to draw in the tail gas with waste heat from generator (3) gas outlet that the tail gas with waste heat is drawn in (3) by generator
Go out, after the extraction of the tail gas with waste heat is heated to aqueous rubbish in generator (3), the tail gas after heat release contains together with from after heating
The vapor discharged in water rubbish and VOCs volatile organic matters introduce grate-cooler (2) high temperature section, cold to the grog in grate-cooler
But, dore furnace (1-1) is sent into through the high temperature section gas outlet of grate-cooler (2) after and mixing with tertiary air.
2. the method for utilizing the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems according to claim 1, it is characterised in that：It is described
The temperature of grate-cooler (2) high temperature section is 800 ~ 900 degrees Celsius.
3. the method for utilizing the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems according to claim 1, it is characterised in that：It is described
The exhaust temperature of quality coal in cement kiln systems is 100 ~ 400 degrees Celsius.
4. the method for utilizing the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems according to claim 3, it is characterised in that：It is described
The exhaust temperature of quality coal in cement kiln systems is 100 ~ 200 degrees Celsius, 200 ~ 300 degrees Celsius or 300 ~ 400 degrees Celsius.
5. the method for utilizing the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems according to claim 1, it is characterised in that：It is aqueous
Rubbish is during heating in tiling and motion state, the direction of motion phase of the direction of motion of the tail gas and aqueous rubbish
Instead.
6. the method for utilizing the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems according to claim 5, it is characterised in that：It is described
The air quantity of tail gas is 23000m3/h~85000m3/ h, the speed of service of aqueous rubbish is 0.6 ~ 1.5 m/min, and drying time is 3
~ 5 hours.
7. the method for utilizing the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems according to claim 1, it is characterised in that：Will be dry
Change refuse breaking and quality coal in cement kiln systems, and the imperfect combustion in dore furnace are sent into 50mm ~ 120mm.
8. the method for utilizing the aqueous rubbish of waste heat mummification of quality coal in cement kiln systems according to claim 1, it is characterised in that：It is described
Aqueous rubbish is carried out by the process of heat drying in sealing space.
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| CN107512856A (en) * | 2017-07-21 | 2017-12-26 | 金圆水泥股份有限公司 | A kind of method using cement kiln synergic processing acid-base waste fluid and abraum salt |
| CN112225477A (en) * | 2020-09-14 | 2021-01-15 | 广西华润红水河水泥有限公司 | Method for treating landfill leachate |
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