CN104496135B - Method for treating sludge by using cement kiln, and sludge gasifying cement kiln system - Google Patents
Method for treating sludge by using cement kiln, and sludge gasifying cement kiln system Download PDFInfo
- Publication number
- CN104496135B CN104496135B CN201410792166.1A CN201410792166A CN104496135B CN 104496135 B CN104496135 B CN 104496135B CN 201410792166 A CN201410792166 A CN 201410792166A CN 104496135 B CN104496135 B CN 104496135B
- Authority
- CN
- China
- Prior art keywords
- sludge
- granule
- dewatered sludge
- mud
- cement kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 207
- 239000004568 cement Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title abstract description 20
- 238000002309 gasification Methods 0.000 claims abstract description 105
- 239000002994 raw material Substances 0.000 claims abstract description 25
- 239000002893 slag Substances 0.000 claims abstract description 14
- 239000008187 granular material Substances 0.000 claims description 152
- 238000001035 drying Methods 0.000 claims description 29
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 24
- 239000011707 mineral Substances 0.000 claims description 24
- 239000010865 sewage Substances 0.000 claims description 21
- 239000011236 particulate material Substances 0.000 claims description 18
- 239000003245 coal Substances 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 24
- 239000007787 solid Substances 0.000 abstract description 9
- 239000002817 coal dust Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 3
- 239000013058 crude material Substances 0.000 abstract 2
- 239000002737 fuel gas Substances 0.000 abstract 2
- 241000196324 Embryophyta Species 0.000 description 28
- 235000010755 mineral Nutrition 0.000 description 23
- 239000002956 ash Substances 0.000 description 21
- 239000000567 combustion gas Substances 0.000 description 17
- 239000002028 Biomass Substances 0.000 description 16
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000010813 municipal solid waste Substances 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 235000012054 meals Nutrition 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000004065 wastewater treatment 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/125—Fuels from renewable energy sources, e.g. waste or biomass
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a method for treating sludge by using a cement kiln, and a sludge gasifying cement kiln system. The method for treating sludge by using the cement kiln comprises the following steps: making wet sludge into dry sludge particles, then gasifying the dry sludge particles, sending the fuel gas obtained after gasification into a decomposing furnace, and sending ash obtained after gasification into a crude material system. The sludge gasifying cement kiln system comprises a cement kiln and a decomposing furnace, wherein an inlet of the cement kiln is communicated with an outlet of the decomposing furnace, and a gas inlet of the decomposing furnace is communicated with a gas outlet of a gasifying furnace through a fuel gas pipeline; a feed opening of the gasifying furnace is communicated with a warehouse through a conveying system, and a slag outlet of the gasifying furnace is communicated with the crude material system through a slagging system. According to the method and the sludge gasifying cement kiln system provided by the invention, the treatment scale of sludge can be greatly improved; the difference between the form of solid sludge directly sent to the kiln and the fineness of coal dust as well as a cement raw material is reduced, and the mass and heat transfer effect is increased.
Description
Technical field
The present invention relates to a kind of method of disposal of mud and system, more particularly, to a kind of method of use cement kiln disposing sludge
And sludge gasification quality coal in cement kiln systems.
Background technology
Cement industry is one of China industrial circle energy consumption rich and influential family, accounts for the 6.5% of national total energy consumption.Cement industry fuel disappears
Consumption accounts for the 75% of cement industry total energy consumption, and coal accounts for nearly the 100% of total fuel consumption.Seek to meet China's energy using alternative fuel
The strategy that source structure optimizes and cement industry production capacity is replaced.
With the construction of urban wastewater treatment facility, sewage plant sludge and sewage sludge become a new urban environment
Problem.Moisture percentage in sewage sludge about 80% after Sewage Plant mechanical dehydration.The methods of disposal such as the landfill of routine, burning, compost are difficult in adapt to day
The strict environmental emission standard of benefit and resource need.Main chemical compositions due to mud include sio2、fe203, and a12o3,
Compare with the siliceous raw material in cement raw material similar, can be used to part replacement siliceous raw material in theory and carry out dispensing, and it is hot
Value can use as fuel.Hence with cement kiln synergic processing town sewage plant mud, it is a kind of economic, feasible resource
Land use systems.But for cement kiln synergic processing mud is utilized, moisture, calorific value and overall dimensions are impact cement kiln scales
Change the key factor with stability disposing sludge.Wet mud calorific value is low, directly enters kiln and can form floc sedimentation shape structure, causes cement kiln
Temperature drop and deterioration combustion conditions.The yield and quality of impact grog.In addition moisture is high, it will increase at exhaust gas volumn and waste gas
The load of reason facility, easily produces foul gass.
Cement kiln disposing sludge is all to enter kiln technology using single-point after mummification both at home and abroad, does not have sludge gasification at present in the world
Enter the case of cement kiln.In prior art, it is first mud to be transported from Sewage Plant with the main common ground of cement kiln disposing sludge
Deliver to cement plant, recycle cement kiln waste heat mud to be carried out dry deodorization and directly enter dore furnace burning, due to mud conglomeration and
Skewness, disposes small, and energy consumption is higher.Shandong Province Zaozhuang Zhong Lian cement Co., Ltd builds up 60 ton per days
Dispose dewatered sludge (moisture content about 75%) the demonstration line of Zaozhuang Sewage Plant.
Content of the invention
The invention solves the problems that a technical problem be that a kind of method of use cement kiln disposing sludge is provided, the method can be big
The big disposal scale improving mud.
The invention solves the problems that another technical problem be provide a kind of sludge gasification quality coal in cement kiln systems, this system can be significantly
Improve the disposal scale of mud.
For method, in order to solve an above-mentioned technical problem, the method for present invention cement kiln disposing sludge is
First wet mud is made dewatered sludge granule, then dewatered sludge granule is gasified, then, the combustion gas obtaining is sent into decompose after gasification
Stove, the lime-ash obtaining after gasification is sent into Raw Material System.
It is described that wet mud is made dewatered sludge granule is to first pass through in the wet mud of Sewage Plant or sewer interpolation mineral
Matter and/or biomass, the moisture in wet mud are reduced to 40-50%, then the mud reducing after moisture are made wet mud
Grain, then, the ventilation mummification of wet mud granule is formed dewatered sludge granule.
Described moisture in wet mud be reduced to 40-50% carry out in mud mixer, described wet mud is logical
Cross sludge pump and squeeze in described mud mixer, described mineral is flyash and/or quick lime, and described mineral is to pass through
Mineral metering device is added in described mud mixer, and the mud after the described moisture by reduction makes wet mud granule is
Realized by sludge granulator, described is to send into described sludge granulator by belt conveyor by the mud reducing after moisture
, described by wet mud granule ventilation mummification realized by mud granule drying device, described wet mud granule be by shovel
Described mud granule drying device sent into by car, and the moisture of described dewatered sludge granule is 20-30%, and described dewatered sludge granule leads to
Overdrying mud granule transport vehicle is transported in the dewatered sludge particulate material storehouse in cement plant.
Described biomass are garbage waste materials, and described biomass are to be added to described mud by biomass metering device to mix
In conjunction machine.
Described dewatered sludge granule gasifies is carried out in dewatered sludge granule gasification furnace, and described dewatered sludge granule passes through dry
Mud granule induction system sends into dewatered sludge granule gasification furnace, and described combustion gas sends into dore furnace by pipeline, and described lime-ash passes through
Dreg removing system sends into Raw Material System.
Dore furnace is sent in described combustion gas when temperature is more than or equal to 900 DEG C, and the temperature in cement kiln is more than or equal to
1450℃.
The method of present invention cement kiln disposing sludge compared with prior art has the advantages that.
1st, wet mud is first made dewatered sludge granule due to employing by the technical program, then dewatered sludge granule is gasified, so
Afterwards, dore furnace is sent in the combustion gas obtaining after gasification, the lime-ash obtaining is sent into the technological means of Raw Material System, institute after gasification
To be greatly improved the disposal scale of mud；Decrease solid sludges directly enter its form of kiln and coal dust, cement raw material fineness it
Between difference, increased mass-and heat-transfer effect；Cement kiln decomposition furnace system is tangentially entered by combustion gas, solid sludges can be avoided
Directly enter that kiln burning is insufficient and the problem that causes sinter leaching quality；Because lime-ash burn-off rate is high, rich in elements such as silico-calciums, send
Enter cement kiln Raw Material System, lime-ash problem of outlet can be solved as cement kiln raw meal proportioning.
2nd, the technical program due to employ described by wet mud make dewatered sludge granule be first pass through Sewage Plant or under
Add mineral in the wet mud of water channel, the moisture in wet mud is reduced to 40-50%, then the mud system after moisture will be reduced
Become wet mud granule, then, the technological means of mummification formation dewatered sludge granule that wet mud granule is divulged information, it is possible to decrease dirty
Moisture in mud, is conducive to the transport to mud, improves the calorific value of mud, and the disposal amount for improving mud creates favourable bar
Part, enhances the adaptability to sludge treatment for the cement kiln；By sewage plant sludge being mixed preliminary precipitation and mummification with additive
Pelletize precipitation, reaches inexpensive precipitation it is achieved that the cement kiln of dewatered sludge is disposed；Because mud with the addition of mineral, biology
The additives such as matter, had both reduced moisture and also inhibits foul smell, decreased deodoration system investment.
3rd, due to employing, described moisture in wet mud is reduced to 40-50% is in mud mixer to the technical program
In carry out, described wet mud is to squeeze in described mud mixer by sludge pump, described mineral be flyash and/or
Quick lime, described mineral is to be added in described mud mixer by mineral metering device, described will reduce moisture
Mud afterwards is made wet mud granule and is realized by sludge granulator, and described is by belt by the mud reducing after moisture
Described sludge granulator sent into by conveyer, and described is to be realized by mud granule drying device by the ventilation mummification of wet mud granule
, described wet mud granule is to send into described mud granule drying device, the moisture of described dewatered sludge granule by forklift
For 20-30%, described dewatered sludge granule is transported to the skill in the dewatered sludge particulate material storehouse in cement plant by dewatered sludge particulate transportation car
Art means, so, substantially reduce the investment of equipment, be conducive to the popularization and application with cement kiln disposing sludge method.
4th, the technical program is garbage waste material due to employing described biomass, and described biomass are by biomass meter
Amount device is added to the technological means in described mud mixer, so, the cost of sludge pretreatment can be greatly reduced, further
Increase the calorific value of mud.
5th, the gasification of dewatered sludge granule is to carry out in dewatered sludge granule gasification furnace due to employing described by the technical program
, described dewatered sludge granule sends into dewatered sludge granule gasification furnace by dewatered sludge granule induction system, and pipeline is passed through in described combustion gas
Send into dore furnace, described lime-ash sends into the technological means of Raw Material System by dreg removing system, so, not only make the whole resource of mud
Change, and, flow process is simple, and disposal amount is big.
6th, the technical program sends into dore furnace, cement due to employing described combustion gas when temperature is more than or equal to 900 DEG C
Temperature in kiln is more than or equal to 1450 DEG C of technological means, so, can achieve complete harmlessness disposing, can thoroughly eliminate two evils
The harmful substances such as English, furan, and these harmful substances are not in the hidden danger of regeneration；Cement kiln nitrogen oxidation can be significantly reduced
The acid gas emissions such as thing oxysulfide；Realize garbage zero-emission, cement kiln does not produce flying dust and slag, does not have secondary pollution
Problem.
For system, in order to solve another above-mentioned technical problem, the sludge gasification quality coal in cement kiln systems of the present invention, bag
Include cement kiln and dore furnace, the outlet of the import of described cement kiln and described dore furnace, the air inlet of described dore furnace with
The gas outlet of dewatered sludge granule gasification furnace is connected by gas pipeline, and the charging aperture of described dewatered sludge granule gasification furnace is by dry dirt
Mud granule induction system is connected with dewatered sludge particulate material storehouse, the slag notch of described dewatered sludge granule gasification furnace pass through dreg removing system with
Raw Material System connects.
Described dewatered sludge granule gasification furnace is vertical fixing gasification furnace, and the gas outlet of described mud granule gasification furnace is arranged on
The top of described vertical fixing gasification furnace side, the charging aperture of described dewatered sludge granule gasification furnace is arranged on described vertical fixing gas
Change the central authorities of furnace top surface, the ash hole of described dewatered sludge granule gasification furnace is arranged in described vertical fixing gasification furnace bottom surface
Centre, described gas pipeline is configured with baffle door, described dewatered sludge granule induction system include grab mechanisms, step-by-step movement batcher and
Double roll feeding machine with converter, the discharging mouth down of described double roll feeding machine is located at entering of described dewatered sludge granule gasification furnace
The top of material mouth, upward, the discharging mouth down of described step-by-step movement batcher is located at described pair to the charging aperture of described double roll feeding machine
The top of roller feeding machine inlet, the charging aperture of described step-by-step movement batcher is located in described dewatered sludge particulate material storehouse upward, institute
State grab mechanisms to be arranged in described dewatered sludge particulate material storehouse, the lower discharge position of described grab mechanisms is located at described step-by-step movement feed
The top of machine inlet, described dreg removing system includes Residue extraction pipeline, near described dewatered sludge granule gasification on described Residue extraction pipeline
The slag notch of stove is provided with mucking machine.
Described sludge gasification quality coal in cement kiln systems also includes mud mixer, sludge granulator and the mud being arranged on Sewage Plant
Granule drying device, described mud mixer is configured with sludge pump and mineral metering device, described mud mixer and described dirt
It is configured with belt conveyor between mud comminutor, between described sludge granulator and described mud granule drying device, be configured with shovel
Car, is configured with dewatered sludge particulate transportation car between described Sewage Plant and cement plant.
Described mud granule drying device includes the barrier of rectangle, the barrier of described rectangle many Fans are provided below.
The sludge gasification quality coal in cement kiln systems of the present invention compared with prior art has the advantages that.
1st, the gas outlet of air inlet and dewatered sludge granule gasification furnace due to employing described dore furnace for the technical program leads to
Cross gas pipeline connection, the charging aperture of described dewatered sludge granule gasification furnace passes through dewatered sludge granule induction system and dewatered sludge granule
The connection of material storehouse, the technological means that the slag notch of described dewatered sludge granule gasification furnace is connected with Raw Material System by dreg removing system, institute
To be greatly improved the disposal scale of mud；Decrease solid sludges directly enter its form of kiln and coal dust, cement raw material fineness it
Between difference, increased mass-and heat-transfer effect；Cement kiln decomposition furnace system is tangentially entered by combustion gas, solid sludges can be avoided
Directly enter that kiln burning is insufficient and the problem that causes sinter leaching quality；Because lime-ash burn-off rate is high, rich in elements such as silico-calciums, send
Enter cement kiln Raw Material System, lime-ash problem of outlet can be solved as cement kiln raw meal proportioning.
2nd, the technical program is vertical fixing gasification furnace due to employing described dewatered sludge granule gasification furnace, described mud
The gas outlet of grain gasification furnace is arranged on the top of described vertical fixing gasification furnace side, the charging of described dewatered sludge granule gasification furnace
Mouth is arranged on the central authorities of described vertical fixing gasification furnace top surface, and the ash hole of described dewatered sludge granule gasification furnace is arranged on described standing
The central authorities of the fixing gasification furnace bottom surface of formula, described gas pipeline is configured with baffle door, and described dewatered sludge granule induction system includes grabbing
Bucket device, step-by-step movement batcher and the double roll feeding machine with converter, the discharging mouth down of described double roll feeding machine is located at institute
State the top of the charging aperture of dewatered sludge granule gasification furnace, the charging aperture of described double roll feeding machine upward, described step-by-step movement batcher
Discharging mouth down be located at the top of described double roll feeding machine inlet, the charging aperture of described step-by-step movement batcher is located at institute upward
State in dewatered sludge particulate material storehouse, described grab mechanisms are arranged in described dewatered sludge particulate material storehouse, the blanking of described grab mechanisms
Position is located at the top that described step-by-step movement is fed machine inlet, and described dreg removing system includes Residue extraction pipeline, on described Residue extraction pipeline
It is provided with the technological means of mucking machine near the slag notch of described dewatered sludge granule gasification furnace, so, equipment is simple, the system of equipment
Make low cost, feeding is uniformly it is ensured that the burning quality of mud.
3rd, the technical program also includes being arranged on the mud of Sewage Plant due to employing described sludge gasification quality coal in cement kiln systems
Mixer, sludge granulator and mud granule drying device, described mud mixer is configured with sludge pump and mineral metering device,
It is configured with belt conveyor, described sludge granulator and described mud between described mud mixer and described sludge granulator
It is configured with forklift between grain drying device, between described Sewage Plant and cement plant, be configured with the technology handss of dewatered sludge particulate transportation car
Section, so, not only can greatly reduce the manufacturing cost of equipment, and, greatly reduce the cost of transportation of mud.
4th, the technical program includes the barrier of rectangle, the barrier of described rectangle due to employing described mud granule drying device
The technological means that many Fans are provided below, so, the structure of mud granule drying device is simple, reduce further mud
The manufacturing cost of granule drying device, improves the drying efficiency of mud granule.
Brief description
With reference to the accompanying drawings and detailed description to the present invention method of cement kiln disposing sludge and sludge gasification water
Stall system is described in further detail.
Fig. 1 is the method schematic diagram of present invention cement kiln disposing sludge.
Fig. 2 is the sludge gasification quality coal in cement kiln systems schematic diagram of the present invention.
Specific embodiment
As depicted in figs. 1 and 2, the present embodiment method of cement kiln disposing sludge is first wet mud to be made dewatered sludge
Granule, then dewatered sludge granule is gasified, then, dore furnace 2 is sent in the combustion gas obtaining after gasification, the lime-ash that will obtain after gasification
Send into Raw Material System 11.As a kind of preferably, described dewatered sludge granule gasification is by by a part of dewatered sludge particle burning institute
The heat producing goes to gasify another part dewatered sludge granule thus producing combustion gas.The consumption of the energy so can be greatlyd save.
Wet mud is first made dewatered sludge granule due to employing by present embodiment, then dewatered sludge granule is gasified, then,
Dore furnace is sent in the combustion gas obtaining after gasification, the lime-ash obtaining is sent into the technological means of Raw Material System after gasification, so, can
Greatly improve the disposal scale of mud；Decrease solid sludges directly to enter between its form of kiln and coal dust, cement raw material fineness
Difference, increased mass-and heat-transfer effect；Cement kiln decomposition furnace system is tangentially entered by combustion gas, solid sludges can be avoided direct
Enter that kiln burning is insufficient and the problem that causes sinter leaching quality；Because lime-ash burn-off rate is high, rich in elements such as silico-calciums, send into water
Stall Raw Material System, can solve lime-ash problem of outlet as cement kiln raw meal proportioning.
As one kind improvement of present embodiment, as depicted in figs. 1 and 2, described wet mud is made dewatered sludge granule it is
First pass through and add mineral and/or biomass in the wet mud of Sewage Plant a or sewer, the moisture in wet mud is reduced to
40-50%, then the mud reducing after moisture is made wet mud granule, then, the ventilation mummification of wet mud granule is formed dewatered sludge
Granule.
Due to employing, described wet mud is made dewatered sludge granule is to first pass through in Sewage Plant or lower water to present embodiment
Add mineral in the wet mud in road, the moisture in wet mud is reduced to 40-50%, then the mud reducing after moisture is made
Wet mud granule, then, the technological means of mummification formation dewatered sludge granule that wet mud granule is divulged information, it is possible to decrease mud
In moisture, be conducive to the transport to mud, improve the calorific value of mud, the disposal amount for improving mud creates favourable bar
Part, enhances the adaptability to sludge treatment for the cement kiln；By sewage plant sludge being mixed preliminary precipitation and mummification with additive
Pelletize precipitation, reaches inexpensive precipitation it is achieved that the cement kiln of dewatered sludge is disposed；Because mud with the addition of mineral, biology
The additives such as matter, had both reduced moisture and also inhibits foul smell, decreased deodoration system investment.
Further improve as present embodiment, as depicted in figs. 1 and 2, described moisture in wet mud is reduced to
40-50% is carried out in mud mixer 12, and described wet mud is to be squeezed in described mud mixer 12 by sludge pump 13
, described mineral is flyash and/or quick lime, and described mineral is to be added to described dirt by mineral metering device 14
In mud mixer 12, the mud after the described moisture by reduction is made wet mud granule and is realized by sludge granulator 17,
Described is to send into described sludge granulator 17 by belt conveyor 16 by the mud reducing after moisture, described by wet mud
Grain ventilation mummification is to be realized by mud granule drying device 19, and described wet mud granule is to send into described mud by forklift 18
Granule drying device 19, the moisture of described dewatered sludge granule is 20-30%, and described dewatered sludge granule passes through dewatered sludge granule
Transport vehicle 20 is transported in the dewatered sludge particulate material storehouse 21 of cement plant b.
Due to employing, described moisture in wet mud is reduced to 40-50% is in mud mixer to present embodiment
Carry out, described wet mud is to squeeze in described mud mixer by sludge pump, and described mineral is flyash and/or life
Calx, described mineral is to be added in described mud mixer by mineral metering device, described will reduce moisture after
Mud make wet mud granule and realized by sludge granulator, described is defeated by belt by the mud reducing after moisture
Send machine to send into described sludge granulator, described the ventilation mummification of wet mud granule is realized by mud granule drying device,
Described wet mud granule is to send into described mud granule drying device by forklift, and the moisture of described dewatered sludge granule is
20-30%, described dewatered sludge granule is transported to the technology in the dewatered sludge particulate material storehouse in cement plant by dewatered sludge particulate transportation car
Means, so, substantially reduce the investment of equipment, be conducive to the popularization and application with cement kiln disposing sludge method.
Further improve as present embodiment, as depicted in figs. 1 and 2, described biomass are garbage waste materials, described
Biomass are to be added in described mud mixer 12 by biomass metering device 15.
Present embodiment is garbage waste material due to employing described biomass, and described biomass are to be measured by biomass
Device is added to the technological means in described mud mixer, so, the cost of sludge pretreatment can be greatly reduced, increase further
Plus the calorific value of mud.
Further improve as present embodiment, as depicted in figs. 1 and 2, described by dewatered sludge granule gasification be
Carry out in dewatered sludge granule gasification furnace 3, described dewatered sludge granule sends into dewatered sludge by dewatered sludge granule induction system 4,5,6
Granule gasification furnace 3, described combustion gas sends into dore furnace 2 by pipeline 7, and described lime-ash sends into Raw Material System by dreg removing system 9,10
11.
Present embodiment is carried out in dewatered sludge granule gasification furnace due to employing described dewatered sludge granule gasifies,
Described dewatered sludge granule sends into dewatered sludge granule gasification furnace by dewatered sludge granule induction system, and described combustion gas is sent into by pipeline
Dore furnace, described lime-ash sends into the technological means of Raw Material System by dreg removing system, so, not only make the whole resource of mud,
And, flow process is simple, and disposal amount is big.
Further improve as present embodiment, as depicted in figs. 1 and 2, described combustion gas is more than or equal in temperature
Dore furnace is sent into, the temperature in cement kiln is more than or equal to 1450 DEG C when 900 DEG C.
Present embodiment sends into dore furnace, cement kiln due to employing described combustion gas when temperature is more than or equal to 900 DEG C
Interior temperature is more than or equal to 1450 DEG C of technological means, so, can achieve complete harmlessness disposing, can thoroughly eliminate two evils
The harmful substances such as English, furan, and these harmful substances are not in the hidden danger of regeneration；Cement kiln nitrogen oxidation can be significantly reduced
The acid gas emissions such as thing oxysulfide；Realize garbage zero-emission, cement kiln does not produce flying dust and slag, does not have secondary pollution
Problem.
As shown in Fig. 2 the sludge gasification quality coal in cement kiln systems of the present invention, including cement kiln 1 and dore furnace 2, described cement kiln 1
Import and described dore furnace 2 outlet, the gas outlet of the air inlet of described dore furnace 2 and dewatered sludge granule gasification furnace 3
Connected by gas pipeline 7, the charging aperture of described dewatered sludge granule gasification furnace 3 pass through dewatered sludge granule induction system 4,5,6 with
Dewatered sludge particulate material storehouse 21 connects, and the slag notch of described dewatered sludge granule gasification furnace 3 passes through dreg removing system 9,10 and Raw Material System
11 connections.
Present embodiment is passed through with the gas outlet of dewatered sludge granule gasification furnace due to the air inlet employing described dore furnace
Gas pipeline connects, and the charging aperture of described dewatered sludge granule gasification furnace passes through dewatered sludge granule induction system and dewatered sludge particulate material
Storehouse connects, the technological means that the slag notch of described dewatered sludge granule gasification furnace is connected with Raw Material System by dreg removing system, so,
It is greatly improved the disposal scale of mud；Decrease solid sludges directly to enter between its form of kiln and coal dust, cement raw material fineness
Difference, increased mass-and heat-transfer effect；Cement kiln decomposition furnace system is tangentially entered by combustion gas, solid sludges can be avoided straight
The problem that access kiln burning is insufficient and causes sinter leaching quality；Because lime-ash burn-off rate is high, rich in elements such as silico-calciums, send into
Cement kiln Raw Material System, can solve lime-ash problem of outlet as cement kiln raw meal proportioning.
As one kind improvement of present embodiment, as shown in Fig. 2 described dewatered sludge granule gasification furnace 3 is vertical fixing gas
Change stove, the gas outlet of described mud granule gasification furnace 3 is arranged on the top of described vertical fixing gasification furnace side, described dewatered sludge
The charging aperture of granule gasification furnace 3 is arranged on the central authorities of described vertical fixing gasification furnace top surface, described dewatered sludge granule gasification furnace 3
Ash hole is arranged on the central authorities of described vertical fixing gasification furnace bottom surface, and described gas pipeline 7 is configured with baffle door 8, described dry dirt
Mud granule induction system 4,5,6 includes grab mechanisms 4, step-by-step movement batcher 5 and the double roll feeding machine 6 with converter, described
The discharging mouth down of double roll feeding machine 6 is located at the top of the charging aperture of described dewatered sludge granule gasification furnace 3, described double roll feeding machine
Upward, the discharging mouth down of described step-by-step movement batcher 5 is located at the top of described double roll feeding machine 6 charging aperture, institute to 6 charging aperture
The charging aperture stating step-by-step movement batcher 5 is located in described dewatered sludge particulate material storehouse 21 upward, and described grab mechanisms 4 are arranged on described
In dewatered sludge particulate material storehouse 21, the lower discharge position of described grab mechanisms 4 is located at the top of described step-by-step movement batcher 5 charging aperture,
Described dreg removing system 9,10 includes Residue extraction pipeline 9, slagging tap near described dewatered sludge granule gasification furnace 3 on described Residue extraction pipeline 9
Mouth is provided with mucking machine 10.As one kind preferably, the bottom in described dewatered sludge granule gasification furnace 3 is provided with comb formula support plate,
The central authorities of described comb formula support plate 3-1 are fixed with supporter 3-2, and the central authorities of described supporter 3-2 are provided with axis hole, described axis hole
Inside it is provided with rotary shaft 3-3, the top of described rotary shaft is fixed with tower ash-pan 3-4, described tower ash-pan 3-4 is different by multilamellar
The circular fire grate of size is constituted, and fire grate described in multilamellar is fixed on the upper of described rotary shaft according to order from big to small from top to bottom
Portion, carries vertical shape cast iron 3-10 above every layer of described fire grate, the following circumferentially arranged of nethermost big fire grate has auger
Toothed disc 3-5, described bevel gear wheel disk 3-5 is furnished with bevel pinion 3-6, and described bevel pinion 3-6 is fixed with power transmission shaft 3-7, institute
State power transmission shaft 3-7 to pass the side wall of described dewatered sludge granule gasification furnace 3 and be fixedly connected with the rotary shaft of motor 3-8, described
Motor 3-8 is fixed on the support 3-9 of described dewatered sludge granule gasification furnace 3.Lime-ash so can be made along tower ash-pan 3-4's
The slag notch that edge falls to described dewatered sludge granule gasification furnace 3.Described slag notch is provided with gasifying agent input equipment 23, described gas
Agent is air, and described gasifying agent input equipment 23 is blower fan.Gasification efficiency so can be improved.
Present embodiment is vertical fixing gasification furnace due to employing described dewatered sludge granule gasification furnace, described mud granule
The gas outlet of gasification furnace is arranged on the top of described vertical fixing gasification furnace side, the charging aperture of described dewatered sludge granule gasification furnace
It is arranged on the central authorities of described vertical fixing gasification furnace top surface, the ash hole of described dewatered sludge granule gasification furnace is arranged on described vertical
The central authorities of fixing gasification furnace bottom surface, described gas pipeline is configured with baffle door, and described dewatered sludge granule induction system includes grabbing bucket
Device, step-by-step movement batcher and the double roll feeding machine with converter, the discharging mouth down of described double roll feeding machine is positioned at described
The top of the charging aperture of dewatered sludge granule gasification furnace, the charging aperture of described double roll feeding machine upward, described step-by-step movement batcher
Discharging mouth down is located at the top of described double roll feeding machine inlet, and the charging aperture of described step-by-step movement batcher is upward positioned at described
In dewatered sludge particulate material storehouse, described grab mechanisms are arranged in described dewatered sludge particulate material storehouse, the lower material position of described grab mechanisms
It is fed the top of machine inlet setting in described step-by-step movement, described dreg removing system includes Residue extraction pipeline, described Residue extraction pipeline leans on
The slag notch of closely described dewatered sludge granule gasification furnace is provided with the technological means of mucking machine, so, equipment is simple, the manufacture of equipment
Low cost, feeding is uniformly it is ensured that the burning quality of mud.
Further improve as present embodiment, as shown in Fig. 2 described sludge gasification quality coal in cement kiln systems also includes arranging
In the sludge-tank 22 of Sewage Plant a, mud mixer 12, sludge granulator 17 and mud granule drying device 19, described mud mixing
Machine 12 is configured with sludge pump 13 and mineral metering device 14, and described mineral metering device 14 also can be used for biomass metering
Device.It is of course also possible to be that described mud mixer 12 is separately configured with biomass metering device 15.Described mud mixer 12 with
It is configured with belt conveyor 16, described sludge granulator 17 and described mud granule drying device 19 between described sludge granulator 17
Between be configured with forklift 18, be configured with dewatered sludge particulate transportation car 20 between described Sewage Plant a and cement plant b.
The mud that present embodiment also includes being arranged on Sewage Plant due to employing described sludge gasification quality coal in cement kiln systems mixes
Conjunction machine, sludge granulator and mud granule drying device, described mud mixer is configured with sludge pump and mineral metering device, institute
State and be configured with belt conveyor between mud mixer and described sludge granulator, described sludge granulator and described mud granule
It is configured with forklift between drying device, between described Sewage Plant and cement plant, be configured with the technological means of dewatered sludge particulate transportation car,
So, not only can greatly reduce the manufacturing cost of equipment, and, greatly reduce the cost of transportation of mud.
Further improve as present embodiment, as shown in Fig. 2 described mud granule drying device 19 includes rectangle
Barrier 19-1, the barrier 19-1 of described rectangle is provided below many Fans 19-2.
Present embodiment includes the barrier of rectangle due to employing described mud granule drying device, the barrier of described rectangle
The technological means of many Fans are provided below, so, the structure of mud granule drying device is simple, reduce further mud
The manufacturing cost of grain drying device, improves the drying efficiency of mud granule.
Claims (2)
1. a kind of sludge gasification quality coal in cement kiln systems, including cement kiln and dore furnace, the import of described cement kiln and described dore furnace
Outlet it is characterised in that: Gas Pipe is passed through in the gas outlet of the air inlet of described dore furnace and dewatered sludge granule gasification furnace
Road connects, and the charging aperture of described dewatered sludge granule gasification furnace passes through dewatered sludge granule induction system with dewatered sludge particulate material storehouse even
Logical, the slag notch of described dewatered sludge granule gasification furnace is connected with Raw Material System by dreg removing system；
Described dewatered sludge granule gasification furnace is vertical fixing gasification furnace, and the gas outlet of described dewatered sludge granule gasification furnace is arranged on institute
State the top of vertical fixing gasification furnace side, the charging aperture of described dewatered sludge granule gasification furnace is arranged on described vertical fixing gasification
The central authorities of furnace top surface, the ash hole of described dewatered sludge granule gasification furnace is arranged on the central authorities of described vertical fixing gasification furnace bottom surface,
Described gas pipeline is configured with baffle door, and described dewatered sludge granule induction system includes grab mechanisms, step-by-step movement batcher and band
There is the double roll feeding machine of converter, the discharging mouth down of described double roll feeding machine is located at the charging of described dewatered sludge granule gasification furnace
The top of mouth, upward, the discharging mouth down of described step-by-step movement batcher is located at described double roller to the charging aperture of described double roll feeding machine
The top of feeding machine inlet, the charging aperture of described step-by-step movement batcher is located in described dewatered sludge particulate material storehouse upward, described
Grab mechanisms are arranged in described dewatered sludge particulate material storehouse, and the lower discharge position of described grab mechanisms is located at described step-by-step movement batcher
The top of charging aperture, described dreg removing system includes Residue extraction pipeline, near described dewatered sludge granule gasification furnace on described Residue extraction pipeline
Slag notch be provided with mucking machine；
Described sludge gasification quality coal in cement kiln systems also includes mud mixer, sludge granulator and the mud granule being arranged on Sewage Plant
Drying device, described mud mixer is configured with sludge pump and mineral metering device, and described mud mixer and described mud are made
It is configured with belt conveyor between grain machine, be configured with forklift between described sludge granulator and described mud granule drying device, institute
State and between Sewage Plant and cement plant, be configured with dewatered sludge particulate transportation car.
2. sludge gasification quality coal in cement kiln systems according to claim 1 it is characterised in that: described mud granule drying device includes
The barrier of rectangle, the barrier of described rectangle many Fans are provided below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792166.1A CN104496135B (en) | 2014-12-19 | 2014-12-19 | Method for treating sludge by using cement kiln, and sludge gasifying cement kiln system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792166.1A CN104496135B (en) | 2014-12-19 | 2014-12-19 | Method for treating sludge by using cement kiln, and sludge gasifying cement kiln system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104496135A CN104496135A (en) | 2015-04-08 |
| CN104496135B true CN104496135B (en) | 2017-01-25 |
Family
ID=52937615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410792166.1A Active CN104496135B (en) | 2014-12-19 | 2014-12-19 | Method for treating sludge by using cement kiln, and sludge gasifying cement kiln system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104496135B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694976A (en) * | 2016-03-30 | 2016-06-22 | 中冶南方工程技术有限公司 | Wet sludge gasification treatment method capable of energy self-sustaining |
| CN118026557A (en) * | 2023-12-28 | 2024-05-14 | 冀东水泥璧山有限责任公司 | Process and device for disposing solid waste in cement kiln |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936311B (en) * | 2014-04-14 | 2016-01-20 | 北京建筑材料科学研究总院有限公司 | A kind of method that organic contamination soil and urban waste combination treatment are combined with cement kiln |
| CN204454844U (en) * | 2014-12-19 | 2015-07-08 | 北京金隅股份有限公司 | A kind of sludge gasification quality coal in cement kiln systems |
-
2014
- 2014-12-19 CN CN201410792166.1A patent/CN104496135B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104496135A (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102381877B (en) | Method for brickmaking by comprehensive utilization of desiccated sludge | |
| CN102875003B (en) | Integrated technology of thermal decomposing, dry distilling and gasifying sludge and preparing of ceramsite | |
| CN111100719B (en) | Preparation method of water-washed fly ash derived fuel | |
| CN102070308B (en) | Device technology configuration method for treating house refuses by using rotary cement kiln | |
| CN103204642A (en) | Novel dry-process cement kiln household garbage incineration method | |
| CN102816578A (en) | Method for integrative sorting and destructive distillation pyrolysis and gasification of household refuse without discharge of dioxin | |
| CN103626409B (en) | Method and device for treatment in feeding household garbage into cement kiln in three routes | |
| CN109899802A (en) | Drying particles sludge cooperates with power generation by waste combustion system and method with rubbish in grate furnace | |
| CN106966618A (en) | A kind of method of cement kiln synergic processing house refuse | |
| CN104496135B (en) | Method for treating sludge by using cement kiln, and sludge gasifying cement kiln system | |
| CN101696807B (en) | Rotary cement kiln burning method as novel dry method of household garbage | |
| CN212948497U (en) | Papermaking sludge ceramsite apparatus for producing | |
| CN217677230U (en) | Cement kiln cooperative disposal system for crushing, coupling, distributing and feeding large-volume dried sludge into furnace | |
| CN205528591U (en) | A reaction unit for pyrolysis and carbonization that gives up admittedly organically | |
| CN204356237U (en) | With the quality coal in cement kiln systems of grate-cooler disposing sludge | |
| CN203582743U (en) | Three-way kiln inlet treatment device for cement kiln household garbage | |
| CN204356208U (en) | A kind of quality coal in cement kiln systems of disposing sludge | |
| CN204454844U (en) | A kind of sludge gasification quality coal in cement kiln systems | |
| CN206661886U (en) | The system for handling house refuse | |
| CN115722518A (en) | Low-carbon efficient recycling treatment system and method for building decoration garbage | |
| CN104478243B (en) | Method for treating sludge by cement kiln and cement kiln system for treating sludge by grate cooler | |
| CN107382108A (en) | A kind of method using cement kiln synergic processing gold tailings and recovery gold | |
| CN104496134A (en) | Method for treating sludge by using cement kiln, and cement kiln system for treating sludge | |
| CN204063098U (en) | The feeding device of cement kiln synergic processing house refuse | |
| CN103759272B (en) | Mud mixture burning control system and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |