CN107575871A - A kind of method using cement kiln scale cooperative disposal house refuse - Google Patents
A kind of method using cement kiln scale cooperative disposal house refuse Download PDFInfo
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- CN107575871A CN107575871A CN201710740657.5A CN201710740657A CN107575871A CN 107575871 A CN107575871 A CN 107575871A CN 201710740657 A CN201710740657 A CN 201710740657A CN 107575871 A CN107575871 A CN 107575871A
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- heavy thing
- house refuse
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- clinker
- furnace
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- 239000004568 cement Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003546 flue gas Substances 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 10
- 239000003818 cinder Substances 0.000 claims abstract description 9
- 238000012216 screening Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 4
- 230000002195 synergetic effect Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002817 coal dust Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001354 calcination Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of method using cement kiln scale cooperative disposal house refuse, including:S1, house refuse is classified by lightweight combustible and heavy thing by house refuse pretreatment system;S2, lightweight combustible is sent into cooperative disposal in cement rotary kiln, heavy thing is sent into heavy thing pre-burning stove and burned, burn its organic component complete;In caused flue gas and flying dust feeding dore furnace, harmlessness disposing is completed by dore furnace after burning for S3, heavy thing;Clinker after heavy thing burns is cooled down into furnace cinder cooling device;S4, the clinker after cooling enter raw mill, and participating in raw material as raw material component prepares.The present invention completes the burning of house refuse heavy thing by heavy thing pre-burning stove, flue gas and flying dust after burning, which enter, completes harmlessness disposing in dore furnace, enter raw mill after clinker is then cooled down by furnace cinder cooling device caused by burning and complete disposal, high warm air caused by cooler, which then enters, completes recuperation of heat in pre- burner.
Description
Technical field
Invention is related to field of environment protection, is related to Disposal of Domestic and recycling, more particularly to a kind of to utilize cement kiln
The method of scale cooperative disposal house refuse.
Background technology
The method of cement kiln synergic processing house refuse has been obtained for the encouragement of national industrial policies, also obtains in recent years
Quickly development, it has also become the important method of Disposal of Domestic, and achieve certain achievement.China's cement kiln cooperates with present
Disposal house refuse method has two kinds, one:House refuse is burned using waste incinerator, burned without pretreatment
Caused flue gas enters quality coal in cement kiln systems, and clinker is separately disposed, and which disposing capacity is relatively low, and to the life of clinker
Production capacity power impacts;Secondly:By house refuse after pretreatment, lightweight combustible and heavy thing are obtained, wherein, lightweight can
Combustion things:In house refuse pretreatment system, screening, selection by winnowing and the process procedure such as broken are passed sequentially through, resulting light material,
Its component includes the organic matter such as waste plastics, waste paper, and has certain calorific value, can in cement kiln cooperative disposal, herein
It is referred to as lightweight combustible;Heavy thing:In house refuse pretreatment system, in the heavier thing selected by screening and selection by winnowing stage
Material, key component include dirt, brick and tile, ceramics, glass, fertile soil, block rubber etc., are referred to as heavy thing herein.Then adopt
With cooperative disposal in cement kiln, which has turned into the main method of cement kiln synergic processing house refuse at present, but there is also
Limitation.In current house refuse pretreatment system, lightweight combustible and heavy thing in house refuse are mainly sub-elected
(Including rubber, stone, brick and tile, fertile soil etc.), lightweight combustible can be into cement kiln high-temperature system completion cooperative disposal, acquirement
Good effect, obtains success, but the disposal to heavy thing still suffers from limitation in practice.Disposal to heavy thing is in mesh
Mainly there is two ways in preceding technique:(1)Heavy thing is directly incorporated into raw mill, can complete the disposal of heavy thing, but due to
Heavy species also contain partial organic substances, cause raw mill fume emission organic carbon exceeded.(2)Heavy thing feeding cement kiln is high
Warm system, flue gas and clinker after burning are directly entered cement kiln calcining system, and which realizes the good place to heavy thing
Put, but the fluctuation of cement kiln calcining system condition is easily caused when slag amount is more, therefore disposal amount is relatively fewer, on the whole
Constrain the scale of cement kiln synergic processing house refuse.
The invention provides a kind of method using cement kiln scale cooperated with consumer waste, solves the disposal of heavy thing
Problem.
The content of the invention
For problems of the prior art:Caused clinker can be made after heavy thing is fed directly into cement kiln high-temperature system
Into calcination system fluctuation of operating conditions, and then the problem of constrain cement kiln synergic processing house refuse scale.
In order to solve problems of the prior art, the purpose of the present invention is:One kind is provided to talk about using cement kiln scale
The method of cooperative disposal house refuse, heavy thing is burned in heavy thing pre-burning stove, and to caused flue gas, flying dust after burning
Disposed respectively with clinker, so as to realize the purpose of cement kiln scale cooperative disposal house refuse.
Concrete technical scheme is:
A kind of method using cement kiln scale cooperative disposal house refuse, this method comprise the following steps:
S1, house refuse is classified by lightweight combustible and heavy thing by house refuse pretreatment system;
S2, send the lightweight combustible into cooperative disposal in cement rotary kiln, and the heavy thing is sent into heavy thing pre-burning stove
Middle burning, burn its organic component complete;
S3, the heavy thing in caused flue gas and flying dust feeding dore furnace, are completed innoxious after burning by the dore furnace
Put;Clinker after heavy thing burns is cooled down into furnace cinder cooling device;
S4, the clinker after cooling enter raw mill, and participating in raw material as raw material component prepares.
Further, have in the house refuse pretreatment system:Screening, selection by winnowing and broken process.
Further, in S2, the temperature in the heavy thing pre-burning stove burns the time in 2-30min at 900-1100 DEG C.
Further, in S3, the outlet temperature of the dore furnace is controlled at 850-880 DEG C, and the flue gas and flying dust are dividing
Solve and 4-6s is stopped in stove.
Further, the furnace cinder cooling device is air cooling equipment, and cooling medium is air.
Further, caused high temperature air after the clinker will be cooled down, is sent into the heavy thing pre-burning stove and reclaims heat energy.
Beneficial effects of the present invention:
1st, cement kiln synergic processing house refuse production line can be thorough by Disposal of Domestic, including lightweight caused by pretreatment
Combustible and heavy thing;
2nd, the ability of cement kiln synergic processing heavy thing increases considerably, and synchronously improves cement kiln synergic processing house refuse
Ability, there is good economic benefit and social benefit;
3rd, a large amount of clinkers do not enter back into cement rotary kiln caused by cement kiln synergic processing system, eliminate a large amount of clinkers and enter
Influence in cement kiln to clinker burning;
4th, method of disposal of the present invention does not interfere with the quality of clinker, can be pushed away on a large scale on new type nonaqueous cement production line
Extensively;
5th, the scale of cement kiln synergic processing house refuse is significantly lifted, current 5000t/d cement clinker production line
(Scale typical)Can supporting disposal house refuse 500t/d;Using the present invention, its disposing capacity increases 2-3 times.
Brief description of the drawings
Fig. 1 is a kind of process chart of method using cement kiln scale cooperative disposal house refuse.
Embodiment
The present invention is more fully illustrated below with embodiment.The present invention can be presented as a variety of multi-forms,
It is not construed as being confined to the exemplary embodiment described here.
For ease of explanation, the space relative terms such as " on ", " under ", "left", "right" can be used herein, are used for
The element or feature shown in explanation figure is relative to another element or the relation of feature.It should be understood that except figure
In outside the orientation that shows, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device be squeezed, be stated as positioned at other elements or feature " under " element will be located into other elements or feature " on ".
Therefore, exemplary term " under " both upper and lower orientation can be included.Device can be positioned otherwise(It is rotated by 90 ° or position
In other orientation), can correspondingly be explained used herein of the relative explanation in space.
As shown in figure 1, to utilize the specific embodiment of the method for cement kiln scale cooperative disposal house refuse, in this reality
Apply in example, this method comprises the following steps:
S1, house refuse is classified by lightweight combustible and heavy thing by house refuse pretreatment system, wherein, life rubbish
Rubbish pretreatment system, main technique include screening, selection by winnowing and the link such as broken, by screening and winnowing process by house refuse point
For lightweight combustible and heavy thing, lightweight combustible reaches the requirement of cement kiln synergic processing, the system by further crushing
Referred to as house refuse pretreatment system;
S2, lightweight combustible is sent into cooperative disposal in cement rotary kiln, heavy thing is sent into heavy thing pre-burning stove and burned, is made
Its organic component burns completely, wherein, heavy thing pre-burning stove, for cement kiln synergic processing house refuse system, with dore furnace
Docking, material burn in pre- burner, and temperature control burns the time in 2-30min at 900 ~ 1100 DEG C;
S3, for heavy thing after burning in caused flue gas and flying dust feeding dore furnace, dore furnace is current New Type Dry-process Cement Production
Core equipment in line, the task resolution of raw material is undertaken, coal dust and high temperature tertiary air are fed in dore furnace(Tertiary air:New
In the production of type cement produced with the dry method, realization is issued to suddenly from the high temperature chamotte that the kiln hood of cement rotary kiln is discharged in the cooling of grate-cooler
It is cold, and the cooling medium of high temperature chamotte --- air is then heated to 850-1100 DEG C by normal temperature, heated high temperature air one
Part be Secondary Air, into rotary kiln in for kiln hood coal dust firing use, another part then enter kiln tail dore furnace supply decomposition
Coal dust firing in stove uses, and the part high temperature air is " tertiary air "), the raw material feeding dore furnace after preheating, coal
The burning of powder is decomposed for raw material and provides heat, and coal dust completes burning in dore furnace, and raw material are completed to decompose.The outlet temperature of dore furnace
At 850-880 DEG C, flue gas and flying dust stop 4-6s in dore furnace, and harmlessness disposing is completed by dore furnace for degree control;Heavy thing
Clinker after burning is cooled down into furnace cinder cooling device, and furnace cinder cooling device is air cooling equipment, and cooling medium is air, will
Caused high temperature air after cooled slag, it is sent into heavy thing pre-burning stove and reclaims heat energy;
S4, the clinker after cooling enter raw mill, and clinker can be used as clayey raw material to participate in raw material and prepare, wherein raw mill be
In New Type Dry-process Cement Production, the material of raw material preparation is participated according to grinding device is entered after certain proportions, grinding is extremely
Granularity required for manufacture of cement, turns into raw meal powder, and this grinding device is referred to as raw mill.
The present invention completes the burning of house refuse heavy thing by heavy thing pre-burning stove, and the flue gas and flying dust after burning enter
Harmlessness disposing is completed in dore furnace, clinker caused by burning enters at raw mill completion after then being cooled down by furnace cinder cooling device
Put, high warm air caused by cooler, which then enters, completes recuperation of heat in pre- burner;For the disposal of heavy thing, the present invention solves water
The dimension-limited problem of stall cooperative disposal heavy thing;The present invention is made at cement kiln collaboration by solving the disposal scale of heavy
The ability for putting house refuse further enhances, and its disposing capacity increases substantially;The present invention is improving the same of heavy thing disposal amount
When, the fluctuation of operating conditions of quality coal in cement kiln systems will not be caused;It is simple system, easy to operate, facility is docked with cement kiln, is advantageous to existing
The transformation of system.
Above-mentioned example is only intended to the explanation present invention, in addition, also a variety of different embodiments, and and these are implemented
Mode be all those skilled in the art after comprehension inventive concept it is also envisioned that therefore, will not enumerate herein.
Claims (6)
- A kind of 1. method using cement kiln scale cooperative disposal house refuse, it is characterised in that this method includes following step Suddenly:S1, house refuse is classified by lightweight combustible and heavy thing by house refuse pretreatment system;S2, send the lightweight combustible into cooperative disposal in cement rotary kiln, and the heavy thing is sent into heavy thing pre-burning stove Middle burning, burn its organic component complete;S3, the heavy thing in caused flue gas and flying dust feeding dore furnace, are completed innoxious after burning by the dore furnace Put;Clinker after heavy thing burns is cooled down into furnace cinder cooling device;S4, the clinker after cooling enter raw mill, and participating in raw material as raw material component prepares.
- 2. the method as described in claim 1, it is characterised in that have in the house refuse pretreatment system:Screening, selection by winnowing And broken process.
- 3. the method as described in claim 1, it is characterised in that in S2, the temperature in the heavy thing pre-burning stove is in 900- 1100 DEG C, the time is burned in 2-30min.
- 4. the method as described in claim 1, it is characterised in that in S3, the outlet temperature of the dore furnace is controlled in 850- 880 DEG C, the flue gas and flying dust stop 4-6s in dore furnace.
- 5. the method as described in claim 1, it is characterised in that the furnace cinder cooling device is air cooling equipment, and cooling medium is Air.
- 6. the method as described in claim 1, it is characterised in that caused high temperature air after the clinker will be cooled down, be sent into institute State in heavy thing pre-burning stove and reclaim heat energy.
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CN201710740657.5A CN107575871A (en) | 2017-08-25 | 2017-08-25 | A kind of method using cement kiln scale cooperative disposal house refuse |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110848706A (en) * | 2019-10-22 | 2020-02-28 | 承德金隅水泥有限责任公司 | Pretreatment process for cooperatively treating packing by using cement kiln |
CN113275354A (en) * | 2021-01-20 | 2021-08-20 | 陕西柏能工业技术有限公司 | Cement kiln is domestic waste processing system in coordination |
CN113985944A (en) * | 2021-11-12 | 2022-01-28 | 合肥水泥研究设计院有限公司 | Method for controlling temperature of decomposition furnace under condition of cooperative disposal of garbage by cement kiln |
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KR101067473B1 (en) * | 2011-03-31 | 2011-09-27 | 유기정 | The greener recycled soil composition and its manufacturing method using waste materials |
CN202688202U (en) * | 2012-07-09 | 2013-01-23 | 南京凯盛国际工程有限公司 | Rubbish incineration ash disposing system |
CN103204642A (en) * | 2013-04-02 | 2013-07-17 | 广西中盟世纪环保咨询有限责任公司 | Novel dry-process cement kiln household garbage incineration method |
CN104132349A (en) * | 2014-08-19 | 2014-11-05 | 成都建筑材料工业设计研究院有限公司 | Method for large-scale cooperative disposal of aging household garbage in landfill through cement kiln |
CN106813244A (en) * | 2015-12-02 | 2017-06-09 | 北京恩萨工程技术有限公司 | A kind of system and method for utilization cement kiln synergic processing house refuse |
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2017
- 2017-08-25 CN CN201710740657.5A patent/CN107575871A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101067473B1 (en) * | 2011-03-31 | 2011-09-27 | 유기정 | The greener recycled soil composition and its manufacturing method using waste materials |
CN202688202U (en) * | 2012-07-09 | 2013-01-23 | 南京凯盛国际工程有限公司 | Rubbish incineration ash disposing system |
CN103204642A (en) * | 2013-04-02 | 2013-07-17 | 广西中盟世纪环保咨询有限责任公司 | Novel dry-process cement kiln household garbage incineration method |
CN104132349A (en) * | 2014-08-19 | 2014-11-05 | 成都建筑材料工业设计研究院有限公司 | Method for large-scale cooperative disposal of aging household garbage in landfill through cement kiln |
CN106813244A (en) * | 2015-12-02 | 2017-06-09 | 北京恩萨工程技术有限公司 | A kind of system and method for utilization cement kiln synergic processing house refuse |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110848706A (en) * | 2019-10-22 | 2020-02-28 | 承德金隅水泥有限责任公司 | Pretreatment process for cooperatively treating packing by using cement kiln |
CN113275354A (en) * | 2021-01-20 | 2021-08-20 | 陕西柏能工业技术有限公司 | Cement kiln is domestic waste processing system in coordination |
CN113985944A (en) * | 2021-11-12 | 2022-01-28 | 合肥水泥研究设计院有限公司 | Method for controlling temperature of decomposition furnace under condition of cooperative disposal of garbage by cement kiln |
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