CN1861532A - Method and device of treating urban mud by using cement rotary kiln - Google Patents

Method and device of treating urban mud by using cement rotary kiln Download PDF

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Publication number
CN1861532A
CN1861532A CN 200510069188 CN200510069188A CN1861532A CN 1861532 A CN1861532 A CN 1861532A CN 200510069188 CN200510069188 CN 200510069188 CN 200510069188 A CN200510069188 A CN 200510069188A CN 1861532 A CN1861532 A CN 1861532A
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rotary kiln
mud
sludge
calcium oxide
treatment
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CN 200510069188
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CN100398472C (en
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陈子庭
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陈子庭
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Abstract

A method for treating city sludge by the rotary kiln of preparing cement features that said sludge containing calcium hydroxide is calcined in said rotary kiln to become calcium oxide. Its apparatus is composed of a sludge pre-treating unit and new material synthesizing unit. The spiral blades of the screw stirring-delivering mechanism have the concave-convex structure on their edge, resulting in high stirring effect and strength.

Description

Utilize cement rotary kiln to handle the method and apparatus of municipal sludge
Technical field
The present invention relates to a kind of device that method and this method adopted that the excess sludge that is produced after the municipal sewage treatment is handled.
Background technology
The mud that municipal wastewater treatment plant produced is the sewage aggregation process of sewage work with the city, remaining residue behind the middle water qualified discharge.Be a kind ofly to distribute stench, contain multiple volatile gases, have multiple pathogeny bacterium and virus and with enriched material from all kinds of materials such as industrial waste, family's chemicals, sterilant, heavy metal ion, poisonous chemicals.
The prior art of handling above-mentioned municipal sludge adopts the heat-generating agent of two-pack to be added in the mud, and its liquid component evaporation is solidified.Be acidic components with dehydration aluminium strong acid salt and non-aluminium strong acid salt in the heat-generating agent, comprise 40-120 weight part dehydration aluminium strong acid salt, the 10-50 weight part non-aluminium strong acid salt that dewaters, raw materials used wide material sources are abundant, cheap, characteristics such as preparation is convenient, but the shortcoming of this treatment process is to need to add a large amount of above-mentioned two-pack heat-generating agents, the result who draws after the test that the manufacturing of technical grade is processed proves, one group of chemical composition of every increase, the cost (even its raw material sources are in industrial residue) that its dehydration processing is made is strengthened in the capital, the manufacturing processed of acid and alkali double component heat-generating agent, acidic components are neutralized in a large number, have strengthened manufacturing cost; Cause very big waste; The preprocessing process of mud can discharge a large amount of obnoxious flavoures, and environment is polluted.In addition, the structure of implementing a kind of existing treatment unit that this treatment process adopts comprises calcium oxide hopper, spiral conveying mechanism, gives whipping appts, revolution batch mixing thermal response tube, is provided with the spiral discharging mouth in the outlet of reaction tube one end.Because this discharge port is directly exposed to atmosphere, cause the interior heat of reaction tube to distribute and enter in the reaction tube with atmosphere, reduce the exothermic reaction speed in the reaction tube, influence works better; The whipping appts that gives of this device comprises not having the axle screw feeder in addition, though there is not the obstruction that the axle screw feeder has avoided being transmitted thing, the mechanical rigid of handling machinery descends significantly, can't form non-stop run.
Summary of the invention
Purpose of the present invention just provides a kind of method and treatment unit that utilizes cement rotary kiln to handle municipal sludge, the running cost height that exists with the treatment process that solves prior art; The reaction tube thermal response effect that treatment unit exists is low, and the mechanical rigid of handling machinery descends, can't form the problem of non-stop run significantly.
Technical scheme of the present invention is: this method comprises mud pre-treatment and sludge silt novel material synthesis technique, wherein:
The mud pre-treatment is to add calcium oxide in mud, mud is carried out drying, dehydration, deodorizing, modification, solve in the transportation of sludge silt seepage effectively and reduced volume, and reach the solid content standard that cement rotary kiln secondary clacining the subject of knowledge and the object of knowledge bears, the physical condition that produces novel material necessity is provided for novel material is synthetic;
The sludge silt novel material is synthetic be divided into into:
(1) active calcium oxide synthesis technique, be used to produce active calcium oxide: Wingdale, acidifying iron, dehydration aluminium strong acid salt, the non-aluminium strong acid salt of dehydration and the above-mentioned pretreated sludge silt that contains calcium hydroxide are mixed back preheating and decomposition according to a certain percentage, send into rotary kiln adding fuel again and calcine, the cooling back obtains to contain the solids of calcium oxide.
(2) cement synthesis technique, be used to produce cement: Wingdale, clay, silica, ferric oxide (or iron powder) and described sludge silt are mixed back preheating and decomposition according to a certain percentage, sending into rotary kiln adding fuel again calcines, the cooling back obtains cement clinker, with material mixing such as gypsum and other slag, flyash, obtain finished cement again through behind the grinding.
Calcining temperature in the described active calcium oxide synthesis technique is 650~1100 ℃, and its product makes particulate state active oxidation calcium product through the granulation of adhesive-free tablets press again, and these goods are back to described mud pre-treatment.
The weight part of the active material that is added in the described active calcium oxide synthesis technique is respectively: dehydration aluminium strong acid salt 10-30 weight part, non-aluminium strong acid salt 5-9 weight part dewaters.
Described mud pre-treatment also comprises the gas treatment equipment that the gas that produces in the treating processes is carried out harmless processing.
Spiral delivery port at described reaction tube is provided with the discharging cover, is provided with discharge port in the bottom of this discharging cover, is connected with venting port at the top of this discharging cover.
Described stirring screw conveyer structure comprises motor, housing, screw conveyor shaft and spiral leaf, the two ends rotational support of screw conveyor shaft is at the two ends of housing, the one end is connected with the shaft drive of motor by transmission pair, the spiral leaf is connected on the screw conveyor shaft, upside at the middle front part of housing is provided with opening for feed, and the downside in the rear end of housing is provided with discharge port; Outer at described spiral leaf is provided with convex-concave structure.
Venting port at described discharging cover is connected with the obnoxious flavour treatment unit.
The discharge port of described discharging cover is connected with the inlet of a helical feed screw feeder.
Characteristics of the present invention are employed acidic components during with the manufacturing heat-generating agent, and being used in cement rotary kiln increases its activity in calcining reduction calcium oxide process, and active calcium oxide is recycled and reused for the mud preprocessing process.Also can be innoxious effectively and as cement raw material, brickmaking, road engineering filler etc. with excess sludge, finally enter the resource circulation utilization field.Because the edge designs that a screw-blade is arranged at the stirring screw conveyer structure that this system and device adopted becomes concaveconvex structure, has increased mixing effect and bulk strength; The discharging cover of reaction tube discharge port has prevented the exchange of the inside and outside atmosphere of reaction tube, has avoided the loss of heat, has improved speed of response and effect.The obnoxious flavour treatment unit that the pre-treatment rear end increases has significantly reduced the pollution to environment.
Description of drawings
Fig. 1 is the process flow diagram that the present invention produces active calcium oxide;
Fig. 2 is the process flow diagram that the present invention makes cement;
The overall structure synoptic diagram of Fig. 3 mud pretreatment unit of the present invention;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the right view of Fig. 3;
Fig. 6 is the axial cross-sectional schematic that stirs auger among Fig. 3;
Fig. 7 be among Fig. 6 auger the A-A sectional view;
Fig. 8 is the sectional structure synoptic diagram of the reaction tube among Fig. 3;
Fig. 9 is the discharge end and the lateral structural representation of discharging cover of reaction tube among Fig. 3;
Figure 10 is the left view of Fig. 9.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of method of utilizing cement rotary kiln to handle municipal sludge, this method comprise mud pre-treatment A and two kinds of sludge silt novel material synthesis technique B1 and B2, wherein:
The step of mud pre-treatment A comprises adds calcium oxide in mud, be transported in the reaction tube through stirring, and the excess sludge of water ratio 75% is carried out drying, dehydration, deodorizing, modification.Solve in the transportation of sludge silt seepage effectively and reduced volume, and reached the solid content standard (solid content 〉=90%) that cement rotary kiln secondary clacining the subject of knowledge and the object of knowledge bears.The physical condition that produces novel material necessity is provided for novel material is synthetic.
Described mud pre-treatment also comprises the gas treatment equipment that the gas that produces in the treating processes is carried out harmless processing.The kind of emission gases: different treatment facilities and process can produce various foul gas.The main foul smell that the inlet water lifting pumps house property of sewage work is given birth to is a hydrogen sulfide, and the foul smell that produces in the preliminary sedimentation tank anaerobic sludge digestion process can produce ammonia and other volatile substances based on hydrogen sulfide and other sulfurous gas in the mud alkalization stabilization process.Can produce ammonia, amine, sulfocompound, lipid acid, foul smell such as aromatic series and dimethyl sulphide in the rubbish sludge composting process.Aerobic sigestion and sludge air drying process may produce very a spot of hydrogen sulfide, but mainly contain mercaptan and the generation of dimethyl sulphide gas.
The wet absorption oxidation style: the wet absorption oxidation style is a kind of stench control that is widely used in, and is very ripe, stable, effective processing method. this technology is suitable for handling atm number most, the stench air-flow of high density, stable as mud, the stench that drying and other treatment and burning process produced etc.Equipment commonly used has three kinds of towers: packing tower, spray tower and washing tower.Their design aim is exactly to increase liquid-gas contact to greatest extent, promotes rate of mass transfer, thereby reaches higher processing rate.In this treatment process, foul gas is at first absorbed by chemical solution, oxidized then, treatment effect depends on the solubleness of foul gas in chemical solution. in the stench air-flow, contain ammonia simultaneously, when hydrogen sulfide and other sulfurous gas, usually need to adopt the multistage absorption system, first step water or sulphuric acid soln absorb removes ammonia, promote the pH value with sodium hydroxide then, absorb and remaining foul gas of oxidation by oxidizing agent solutions such as clorox again, as hydrogen sulfide, mercaptan and dimethyl sulphide etc., pass through at last after the demister, directly discharging or with the cleaned air mixed diluting after be discharged in the atmosphere and go.The advantage of this method is by two-stage or three grades of absorption systems, can remove multiple foul gas widely, and reaches very high removal efficient.This system can adapt to the variation of airshed and concentration by the circular flow that adjusting adds dose and solution, therefore has stronger turndown ratio.The wet absorption oxidation style has directly been used the unit operation theory and practice experience in the chemical industry, have very ripe, reliably, effectively, therefore advantage such as particularly floor space is little, is used widely in developed countries such as the U.S., and in suitable period in future, will be the main flow of stench control techniques, particularly at the transformation of old factory with the circumscribed more all advantages of stench of removing of newly founding the factory in soil are arranged.The wet absorption oxidation style also has its shortcoming, water and the chemical solution a large amount of as needs consumption, electric power etc.If demister design is improper, may in emission gases, carry residual muriate secretly, making has the smell of the SYNTHETIC OPTICAL WHITNER of being similar in the exhaust.So demister also is a very important system integral part.
Sludge silt novel material synthesis technique has following two kinds:
(1) active calcium oxide synthesis technique B1, be used to produce active calcium oxide: Wingdale, acidifying iron, dehydration aluminium strong acid salt, the non-aluminium strong acid salt of dehydration and the above-mentioned pretreated sludge silt that contains calcium hydroxide are mixed back preheating and decomposition according to a certain percentage, send into rotary kiln adding fuel again and calcine, the cooling back obtains to contain the solids of calcium oxide.
Calcining temperature is 650~1100 ℃, and its product makes particulate state active oxidation calcium product through the granulation of adhesive-free tablets press again, and these goods are back to described mud pre-treatment.
The weight part of the active material that is added in the described active calcium oxide synthesis technique is respectively: dehydration aluminium strong acid salt 10-30 weight part, non-aluminium strong acid salt 5-9 weight part dewaters.
The embodiment of novel material synthesis technique: it is as follows to produce one ton of needed main raw material(s) of active calcium oxide and technology:
Sludge silt 1080Kg,
Wingdale 220Kg,
Acidifying iron 70Kg,
Dehydration aluminium strong acid salt 25Kg,
The non-aluminium strong acid salt 5Kg that dewaters,
Make the active calcium oxide finished granule through calcining (calcining temperature is 650~1100 ℃, 5~10 hours time), granulation process, as shown in Figure 1.This calcium oxide is re-used in water ratio increases the calcium mummification for the 70%-85% municipal sludge pre-treatment.
(2) cement synthesis technique B2, be used to produce cement: Wingdale, clay, silica, ferric oxide (or iron powder) and described sludge silt are mixed back preheating and decomposition according to a certain percentage, sending into rotary kiln adding fuel again calcines, the cooling back obtains cement clinker, with material mixing such as gypsum and other slag, flyash, obtain finished cement again through behind the grinding.
Specific embodiment: it is as follows to produce one ton of needed main raw material(s) of active calcium oxide:
Wingdale 756Kg,
Clay 220Kg,
Silica 60Kg,
Ferric oxide 30Kg,
Gypsum 35Kg,
Sludge silt 324Kg.
Just replace 30% Wingdale, after 1250 ℃ of calcinings of 1100 ℃ of ≈, adopt conventional cement production process can produce finished cement, as shown in Figure 2 with sludge silt.
The sludge treatment thing is carried out chemical analysis, and its calcium oxide content can be replaced with calcium oxide in the common cement raw material Wingdale up to 50%, and technology of the present invention adopts sludge treatment thing replace lime stone is prepared burden according to this test-results.Test raw materials used chemical ingredients and see Table 1.
Be simulated experiment situation as much as possible, this experiment selects for use two kinds of clay-type substance to prepare burden to inquire into the match condition of sludge treatment thing and different sorts stock yard; Simultaneously, experiment designs three proportionings altogether, simulates the low silicon rate batching of shaft kiln high saturation ratio respectively, silicon rate batching in the saturation ratio in the common rotary kiln, gives and decomposes the high silicon rate batching of the low saturation ratio of kiln, is referred to as 1#, 2#, 3# respectively; Concrete proportioning situation sees Table 2, grog chemical ingredients and mineral composition see Table 3.
The burn-ability experiment is undertaken by international GB9965-88, carry out simultaneously the XRD test rapidly in the free ca test, carry out petrographic investigation to obtaining grog by cement petrofacies testing procedures, three groups of raw material are carried out DTA-TG respectively analyze in air atmosphere following of 1400 ℃, 1450 ℃ firing temperatures.
Table 1: experimental raw chemical constitution
??Loss ??SiO 2 ??Al 2O 3 ??Fe 2O 3 ??CaO ??MgO ????∑
The sludge treatment thing ??29.58 ??7.39 ??1.54 ??0.67 ??56.10 ??3.67 ??98.95
Clay ??4.19 ??69.10 ??14.09 ??6.17 ??2.36 ??1.42 ??97.33
Shale ??5.36 ??60.34 ??16.13 ??9.26 ??2.92 ??2.24 ??96.25
Iron powder ??1.08 ??23.76 ??4.83 ??65.19 ??2.81 ??0.90 ??98.57
Table 2: each raw-meal ingredient of filling a prescription
Numbering Raw-meal ingredient (wt%) The rate value
Clay Iron powder Shale The sludge treatment thing ??KH ??n ??P
????1# ????0.0 ????3.2 ????13.1 ????83.7 ??0.967 ??2.00 ??0.92
????2# ????0.0 ????0.0 ????16.0 ????84.0 ??0.911 ??2.68 ??1.9
????3# ????14.5 ????1.3 ????0.0 ????84.2 ??0.889 ??2.90 ??1.48
Table 3: grog chemical ingredients and mineral composition
Numbering Grog chemical ingredients wt%) Mineral composition (wt%)
??SiO 2 ??Al 2O 3 ??Fe 2O 3 ??CaO ??MgO ??C 3S ??C 2S ??C 3A ????C 4AF
??1# ??19.93 ??4.77 ??5.18 ??63.66 ??4.56 ??68.24 ??5.66 ??3.86 ????15.75
??2# ??21.35 ??5.21 ??2.75 ??64.06 ??4.63 ??59.59 ??16.27 ??9.15 ????8.37
??3# ??22.22 ??4.57 ??3.10 ??63.94 ??4.44 ??56.30 ??21.26 ??6.86 ????9.41
Burn-ability test experiments result:
Burn till at 1300 ℃, 1350 ℃, 1400 ℃, 1450 ℃ four temperature spots respectively testing three kinds of proportionings, it is as shown in table 4 that institute obtains grog free ca test result:
Table 4: free ca test result
When 1350 ℃ in visible three kinds of raw material of table 4 burn till in its grog free calcium contents drop to substantially about 3wt%, do not contain free ca substantially in 1400 ℃ of its grogs when burning till; Consider in three kinds of raw material all not add any mineralizer, therefore, can judge that carrying out cement raw mix proportioning with this sludge treatment thing as raw material can have preferable burn-ability index.
Hot analytical test experimental result:
All carry out the DTA---TG test to three kinds than sample, three samples of DTA---TG analysis revealed all contain a large amount of calcium hydroxides, and being embodied in it, bigger heat absorption paddy and weightlessness-machine are all arranged near 480 ℃ is calcium hydroxide at this temperature section dehydration becoming calcium oxide.By comparison, the lime carbonate heat absorption paddy of sample in 770 ℃~780 ℃ scopes is relative all less with weightless value.
Be the regeneration of final material promptly, essential substance modification is provided in the stage that sludge drying is handled.And with the generation of the material behind the sludge drying, two independent parts of implementing have been carried out technology and have been synthesized.
Test-results according to above (cement matrix key lab of national building materials research institute), determine the technological line of this patent, changed in the past that sludge drying and material generate, two portions are independently implemented the energy that causes, material, many-sided waste such as artificial.
Below in conjunction with accompanying drawing treatment unit of the present invention is described.
A kind of employed pretreatment unit of method that utilizes cement rotary kiln to handle municipal sludge, this treatment unit comprises mud pretreatment unit and sludge silt novel material synthesis unit.
Wherein mud pretreatment unit such as Fig. 3~shown in Figure 10, comprise: mud material bin 2, calcium oxide hopper 1, stirring screw conveyer structure 8 and 8 ', revolution batch mixing thermal response tube 5, respectively be provided with a stirring screw conveyer structure 8 and 8 ' in the lower end of mud material bin 2 and calcium oxide hopper 1, this stirring screw conveyer structure 8 and 8 ' one bring out mouth and extend in the end entrance of revolution batch mixing thermal response tube 5 are provided with spiral delivery port 54 (referring to Fig. 8) in the outlet of the other end of described reaction tube 5.Spiral delivery port 54 at described reaction tube 5 is provided with discharging cover 7, is provided with discharge port 73 in the bottom of this discharging cover 7, is connected with venting port (chimney) 13 at the top of this discharging cover, can be connected with the inlet of obnoxious flavour treatment unit (not shown).At mud material bin 2 and calcium oxide hopper 1 other step 15 and the handrail (railing) 12 up and down that be provided with.Be provided with supporting roll 17 and driving mechanism below revolution batch mixing thermal response tube 5, this driving mechanism is by motor and variator 6 transmission belts 10 and gear 11, and gear 11 meshes with the gear 16 on reaction tube 5 surfaces, drives reaction tube 5 and rotates.Supporting roll 17 cooperates it to rotate the effect of guiding with circular orbit 4 convex-concaves on reaction tube 5 surfaces.Each installs, and may you enjoy repose is contained on the frame 9.
Referring to Fig. 6 and Fig. 7, described stirring screw conveyer structure 8 and 8 ' comprises motor 82, housing 85, screw conveyor shaft 86 and spiral leaf 83, the two ends rotational support of screw conveyor shaft 86 is at the two ends of housing 85, the one end is connected with the shaft drive of motor 82 by transmission pair (turbine and worm) 81, spiral leaf 83 is connected on the screw conveyor shaft 86, upside at the middle front part of housing 85 is provided with opening for feed 84, and the downside in the rear end of housing is provided with discharge port 87; Outer at described spiral leaf 83 is provided with convex-concave structure.
Referring to Fig. 8, described revolution batch mixing thermal response tube 5 comprises cylindrical shell 51, side is provided with the material delivering plate 52 by a plurality of adjustable-angles of helical arrangement within it, the outlet of described cylindrical shell 51 1 ends be provided with this cylindrical shell concentric, constitute the helical feed mouth by columnar housing 53 and the multi-thread spiral 54 that is located at its inboard, this delivery port plays to stir and carries and the effect of material to be processed.On cylindrical shell 51, be provided with cleaning window 58, circular orbit 4 and gear 16.
Referring to Fig. 9 and Figure 10, the discharge port 73 of described discharging cover 7 is connected with the inlet of a helical feed screw feeder 14.Be provided with able to turn on or off door 72 in the outer end of material cover 7.Material cover 7 is connected with the spiral delivery port 51 of reaction tube 5 by shack 71.
The working process of this pretreatment unit is as follows: object being treateds such as mud are sent into stirring conveying device 8 from sewage sludge feed bucket 2, are stirred and send into the inlet that turns round batch mixing thermal response tube 5 by screw conveyor shaft 86 and spiral leaf 83.Meanwhile, the heat-generating agent (active calcium oxide) that is placed in the additive hopper 1 is transported in the revolution batch mixing thermal response tube 5 by spiral conveying mechanism 8 ', heat-generating agent mixes in reaction tube with mud, and emit heat with the reaction of moisture in the mud, moisture is evaporated the discharge reaction tube, the mud of discharging certain moisture enters the helical feed mouth 51 of revolution batch mixing thermal response tube 5 exit end, and by the drying sludge thing after the 14 pressure discharge processing of helical feed screw feeder.The gas exhaust duct 13 of the top of material cover 7 can directly be discharged gas, or carries out discharging after the harmless treatment through the evil gas treatment equipment.
Described sludge silt novel material synthesis unit is divided into the cement manufacture plant of the routine corresponding with active calcium oxide synthesis technique B1 (being used to produce active calcium oxide) and cement synthesis technique B2 (being used to produce cement), its major equipment comprises starting material primary heater unit, decomposer, rotary kiln, refrigerating unit, shredding unit, be prior art, repeat no more.

Claims (8)

1, a kind of method of utilizing cement rotary kiln to handle municipal sludge, it is characterized in that: this method comprises mud pre-treatment and sludge silt novel material synthesis technique, wherein:
The mud pre-treatment is to add calcium oxide in mud, mud is carried out drying, dehydration, deodorizing, modification, solve in the transportation of sludge silt seepage effectively and reduced volume, and reach the solid content standard that cement rotary kiln secondary clacining the subject of knowledge and the object of knowledge bears, the physical condition that produces novel material necessity is provided for novel material is synthetic;
The sludge silt novel material is synthetic be divided into into:
(1) active calcium oxide synthesis technique, be used to produce active calcium oxide: Wingdale, acidifying iron, dehydration aluminium strong acid salt, the non-aluminium strong acid salt of dehydration and the above-mentioned pretreated sludge silt that contains calcium hydroxide are mixed back preheating and decomposition according to a certain percentage, send into rotary kiln adding fuel again and calcine, the cooling back obtains to contain the solids of calcium oxide.
(2) cement synthesis technique, be used to produce cement: Wingdale, clay, silica, ferric oxide (or iron powder) and described sludge silt are mixed back preheating and decomposition according to a certain percentage, sending into rotary kiln adding fuel again calcines, the cooling back obtains cement clinker, with material mixing such as gypsum and other slag, flyash, obtain finished cement again through behind the grinding.
2, the method for utilizing cement rotary kiln to handle municipal sludge according to claim 1; it is characterized in that: the calcining temperature in the described active calcium oxide synthesis technique is 650~1100 ℃; its product makes particulate state active oxidation calcium product through the granulation of adhesive-free tablets press again, and these goods are back to described mud pre-treatment.
3, the method for utilizing cement rotary kiln to handle municipal sludge according to claim 1, it is characterized in that: the weight part of the active material that is added in the described active calcium oxide synthesis technique is respectively: dehydration aluminium strong acid salt 10-30 weight part, non-aluminium strong acid salt 5-9 weight part dewaters.
4, the method for utilizing cement rotary kiln to handle municipal sludge according to claim 1, it is characterized in that: described mud pre-treatment also comprises the gas treatment equipment that the gas that produces in the treating processes is carried out harmless processing.
5, a kind of any one described employed treatment unit of method that utilizes cement rotary kiln to handle municipal sludge of claim 1~4 of implementing, this treatment unit comprises mud pretreatment unit and sludge silt novel material synthesis unit, wherein the mud pretreatment unit comprises: the mud material bin, the calcium oxide hopper, the stirring screw conveyer structure, revolution batch mixing thermal response tube, respectively be provided with a stirring screw conveyer structure in the lower end of mud material bin and calcium oxide hopper, one of this stirring screw conveyer structure brings out mouth and extend in the end entrance of revolution batch mixing thermal response tube, outlet at the other end of described reaction tube is provided with the spiral delivery port, it is characterized in that: the spiral delivery port at described reaction tube is provided with the discharging cover, bottom at this discharging cover is provided with discharge port, is connected with venting port at the top of this discharging cover.
6, the treatment unit that utilizes cement rotary kiln to handle municipal sludge according to claim 5, it is characterized in that: described stirring screw conveyer structure comprises motor, housing, screw conveyor shaft and spiral leaf, the two ends rotational support of screw conveyor shaft is at the two ends of housing, the one end is connected with the shaft drive of motor by transmission pair, the spiral leaf is connected on the screw conveyor shaft, upside at the middle front part of housing is provided with opening for feed, and the downside in the rear end of housing is provided with discharge port; Outer at described spiral leaf is provided with convex-concave structure.
7, the treatment unit that utilizes cement rotary kiln to handle municipal sludge according to claim 5, it is characterized in that: the venting port at described discharging cover is connected with the obnoxious flavour treatment unit.
8, the treatment unit that utilizes cement rotary kiln to handle municipal sludge according to claim 5, it is characterized in that: the discharge port of described discharging cover is connected with the inlet of a helical feed screw feeder.
CNB2005100691886A 2005-05-12 2005-05-12 Method and device of treating urban mud by using cement rotary kiln CN100398472C (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009052671A1 (en) * 2007-10-26 2009-04-30 Xiaolin Yin A new process for producing cement clinker by using sludge in hygrometric state and two-stage blending
CN102050586A (en) * 2010-11-08 2011-05-11 华南理工大学 Method for producing silicate cement by utilizing urban sewage plant sludge
CN102329059A (en) * 2011-08-09 2012-01-25 宾韬 Method for manufacturing environmental-friendly renewable energy by sludge
CN102718374A (en) * 2012-05-31 2012-10-10 郭涵 Method of utilizing vertical type cement kiln to process sludge
CN102718378A (en) * 2012-07-06 2012-10-10 沈阳航空航天大学 Method of cement kiln co-processing for calcium-added and passivated town sludge
CN104176953A (en) * 2013-05-27 2014-12-03 江苏国祯环保科技有限公司 Method and system for utilizing urban life sewage sludge to product cement
CN104355575A (en) * 2014-10-22 2015-02-18 浙江工业职业技术学院 Fly ash and dyeing sludge geopolymer material and preparing method thereof
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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3223670A1 (en) * 1982-06-24 1984-01-05 Walter Hack Process for drying carbonatation sludge (waste product of the sugar industry - sugar factories) and sewage sludges or wet wastes
US5435923A (en) * 1992-03-20 1995-07-25 Bio Gro Systems, Inc. Method for the treatment of sewage sludge and the like
CN2151150Y (en) * 1992-10-12 1993-12-29 江世杰 Continuous solid state reactor
JP2000281471A (en) * 1999-03-29 2000-10-10 Mori Plant:Kk Compost fermenting apparatus
CN2425720Y (en) * 2000-03-23 2001-04-04 陈子庭 High-efficiency pollution free refuse treating apparatus
CN1388203A (en) * 2002-07-02 2003-01-01 沈兴 Fire-free fast heating agent

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009052671A1 (en) * 2007-10-26 2009-04-30 Xiaolin Yin A new process for producing cement clinker by using sludge in hygrometric state and two-stage blending
CN102050586A (en) * 2010-11-08 2011-05-11 华南理工大学 Method for producing silicate cement by utilizing urban sewage plant sludge
CN102050586B (en) * 2010-11-08 2012-10-31 华南理工大学 Method for producing silicate cement by utilizing urban sewage plant sludge
CN102329059A (en) * 2011-08-09 2012-01-25 宾韬 Method for manufacturing environmental-friendly renewable energy by sludge
CN102329059B (en) * 2011-08-09 2013-08-28 宾韬 Method for manufacturing environmental-friendly renewable energy by sludge
CN102718374A (en) * 2012-05-31 2012-10-10 郭涵 Method of utilizing vertical type cement kiln to process sludge
CN102718378A (en) * 2012-07-06 2012-10-10 沈阳航空航天大学 Method of cement kiln co-processing for calcium-added and passivated town sludge
CN102718378B (en) * 2012-07-06 2014-01-01 沈阳航空航天大学 Method of cement kiln co-processing for calcium-added and passivated town sludge
CN104176953A (en) * 2013-05-27 2014-12-03 江苏国祯环保科技有限公司 Method and system for utilizing urban life sewage sludge to product cement
CN104176953B (en) * 2013-05-27 2017-08-25 江苏国祯环保科技有限公司 The method that cement is produced using urban domestic sewage sludge
CN104355575A (en) * 2014-10-22 2015-02-18 浙江工业职业技术学院 Fly ash and dyeing sludge geopolymer material and preparing method thereof
CN104478192A (en) * 2014-12-11 2015-04-01 北京建筑材料科学研究总院有限公司 Sludge material drying method applied to cement kiln calciner
CN104609685A (en) * 2015-01-28 2015-05-13 大连东泰有机废物处理有限公司 Method for co-treating anaerobic digested sludge via cement kiln
CN106323012A (en) * 2015-07-09 2017-01-11 武汉艾蒙窑炉技术有限公司 Rotary preheater and rotary kiln
CN105674734A (en) * 2016-03-29 2016-06-15 新疆广汇中化能源技术开发有限公司 Rotary kiln device
CN106186746A (en) * 2016-06-30 2016-12-07 浙江新业管桩有限公司 A kind of method utilizing printing and dyeing sludge to prepare clinker
CN106186747A (en) * 2016-06-30 2016-12-07 浙江新业管桩有限公司 A kind of method utilizing printing and dyeing sludge to prepare high strength clinker

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