CN101723609A - Process and equipment for manufacturing cementitious material by using inert materials - Google Patents

Process and equipment for manufacturing cementitious material by using inert materials Download PDF

Info

Publication number
CN101723609A
CN101723609A CN200810225184A CN200810225184A CN101723609A CN 101723609 A CN101723609 A CN 101723609A CN 200810225184 A CN200810225184 A CN 200810225184A CN 200810225184 A CN200810225184 A CN 200810225184A CN 101723609 A CN101723609 A CN 101723609A
Authority
CN
China
Prior art keywords
alteration
dryer
hydrothermal
specific surface
bin
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.)
Pending
Application number
CN200810225184A
Other languages
Chinese (zh)
Inventor
倪文
孙恒虎
郑永超
李宇
王海霞
张吉秀
万建华
张玉燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
University of Science and Technology Beijing USTB
Original Assignee
Tsinghua University
University of Science and Technology Beijing USTB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tsinghua University, University of Science and Technology Beijing USTB filed Critical Tsinghua University
Priority to CN200810225184A priority Critical patent/CN101723609A/en
Publication of CN101723609A publication Critical patent/CN101723609A/en
Pending legal-status Critical Current

Links

Images

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

Landscapes

  • Processing Of Solid Wastes (AREA)

Abstract

The invention relates to a process, and equipment for manufacturing cementitious material by using inert materials, which belong to the field of building materials. The raw material treating process comprises the following two parts that (1) an inert silicon-aluminum material and an alteration agent are formed into an alteration material with potential cementitious activity after passing through a hydrothermal alteration system and a pulverizing system, and the alteration material is fed into a midbin; and (2) a material with potential cementitious activity, a diagenesis agent and gypsum are fed into the midbin after directly passing through the pulverizing system, and then semifinished products inside the midbin are proportioned and stirred uniformly to form a cementitious material product. A hydrothermal alteration treating process is combined with a traditional pulverizing process through a steady flow bin and an alteration material bin, thereby ensuring that the hydrothermal alteration treating process and a traditional cementitious material pulverizing process become independent systems. The hydrothermal alteration treating system consists of a fluidized bed roaster, a drying machine and auxiliary equipment, wherein the drying machine is an internal heating type rotary kiln; and the front half part of the drying machine is a hydrothermal alteration reaction area, while the back half part is an alteration material cooling area. A cementitious material gelling material prepared by the process and the equipment has the advantages of low cost, ideal performance, energy saving, consumption reduction and environmental protection.

Description

A kind of stone production technique and equipment with fixed attention that uses inert material
Technical field
The present invention relates to a kind of Processes and apparatus combination that utilizes inert solid waste scale operation gelling material; belong to field of environment protection and building material field; or rather, relate to a kind of Processes and apparatus combination that utilizes the preparation of inertia sal solid waste to coagulate stone in a large number.
Background technology
The pursuit of the environmentally friendly and high-performance gelling material of people makes the research that utilizes solid waste to prepare novel gelled material become a focus.China's researcher has excited gelling material, concrete and geopolymer to do the research work of a series of excellences to alkali since the eighties, and the research work that present China utilizes solid waste to prepare gelling material has also obtained approval in the world.
The contriver has carried out extensive work early stage to this.With the research team headed by the Sun Henghu of the Tsing-Hua University professor from geology and mineralogy angle, analysed in depth the forming process of natural conglomerate and volcanic ash sedimentogeneous rock, and, invented a kind of novel gelled material in conjunction with the scientific and technical research and the application of gelling material---coagulate stone.The theory and the technology of coagulating stone are the frameworks of having jumped out traditional cement fully, useful achievement and successful experience in research of geopolymer and alkali-excited cement and the production application have been drawn, theoretical and the nature compatibility principle according to the earth diagenesis, binary composition design and structure design with main body and part are core, have begun to take shape the theoretical system and the technical system of new sial based cementitious material.Learning under the guide of theory imitatively, coagulating the research of stone and obtained developing rapidly at aspects such as theoretical system, industrialization technology, product application.
Patent CN 1415567A discloses a kind of stone dualization wet cement and uses thereof that coagulates, and wherein adopts big volume waste residue, and for example wet methods such as slag, slag, flyash prepare the method for travertine gelled material.This method can be summarized as the method for " a mill wet preparation ", and its starting material mainly are the high-temp solid wastes with potential gelation activity, can't solve the problem of utilizing of active lower inert solid waste under the usual conditions.
Patent CN 1887764A and patent CN 1887763A disclose a kind of pre-treatment mine tailing, the Yellow River sand/mud, obtain travertine gelled material and their preparation method by it.This patent salient point is to have proposed employing hydrothermal alteration (200～900) principle to improve the potential gelation activity of inert solid waste tailings, the Yellow River sand, mud, and prepares the method for coagulating stone.This patent adopts the method for hydrothermal alteration to invent according to hydrothermal alteration action principle in the geologic function.Hydrothermal alteration is ubiquitous in the geologic process, is the most important effect that mineralogical composition changes in the earth's crust.The principle of hydrothermal alteration is fugitive constituent is deviate from and to be destroyed crystalline network; Simultaneously, the strong polar material that subtractive process discharged of these components with have the structure of active ionic material to neighbour's material surface, as Si-O (Al-O) tetrahedral network, the compound synergy that has different kinds of ions, and produce the intensive corrosive nature, thereby make material lattice distortion degree and lattice imperfection increase structure scission of link or depolymerization, thereby the gelation activity of whole alteration mixing of materials system is strengthened, and lay the first stone for corrosion, depolymerization, migration subsequently.But the material that these two patents lay particular emphasis in the preparation process is formed design and ultimate principle introduction, lacks using the system and process that this technology is accomplished scale production.
At present in other method that inertia sal material is utilized, mainly be as filler or pave the way, but this method added value is low, utilization is limited in scope.Aspect the gelling material of its preparation high added value, patent CN 1539782A discloses a kind of pulverized fuel ash cement and production technique, patent CN 1319902C discloses a kind of method of producing mixed cement, but these patents still are confined to utilize the solid waste with potential gelation activity, as flyash, blast-furnace slag etc.; To the utilization of inert substances such as quartz, also adopt simple method in small, broken bits will increase its activity, but this method energy consumption height, effect are limited, can't accomplish scale production.
Summary of the invention
The present invention seeks to utilize the inert solid waste to prepare travertine gelled material and carry out large-scale production; this method wants to be fit to the technology of inertia sal material hydrothermal alteration pretreatment system on the one hand, will satisfy the technology and the method for travertine gelled material preparation on the other hand.
Above purpose reaches by following measure:
Salient point of the present invention is the activity that improves inertia sal material by the hydrothermal alteration method, makes it to satisfy the requirement of travertine gelled material raw material, thereby realizes the utilization to a large amount of inertia sal solid waste.
Coagulate stone one in hydrothermal alteration treatment process and tradition and grind aspect technology is connected fully, combine with stone raw material technology in small, broken bits with fixed attention by the current stabilization storehouse forward; Combine with the work in-process proportioning process by the alteration feed bin backward.
The principle of hydrothermal alteration is that (200～900 ℃) make in the material fugitive constituent deviate from and destroy crystalline network under low temperature environment; Simultaneously, the strong polar material that subtractive process discharged of these components with have the structure of active ionic material to neighbour's material surface, as Si-O (Al-O) tetrahedral network, the compound synergy that has different kinds of ions, and generation intensive corrosive nature, thereby material lattice distortion degree and lattice imperfection are increased, structure scission of link or depolymerization, thus the gelation activity of whole alteration mixing of materials system is strengthened.As seen, the key of alteration effect depends between the variable grain, and exposure level between the fugitive constituent of particle and release and contact area.Therefore, the fineness of strict control inertia sal material and altered material and mixing effect are the keys that produces fine alteration effect.
The effect of control material mixing effect and fineness is also played in the grinding machine of hydrothermal alteration treatment process front end and current stabilization storehouse except the effect of playing levigate and current stabilization.With inertia sal material and altered material mixing, mainly mix and the realization of current stabilization storehouse homogenization process on the one hand by the grinding machine grinding process; On the other hand by adjusting the strict fineness of controlling out grind materials of grinding machine.
Hydrothermal alteration treatment process rear end is selected directly to enter the technology of intermediate bin or the technology that is entered intermediate bin by the alteration feed bin behind grinding machine through the alteration feed bin according to the material fineness.When the altered material specific surface area is 450～1000m 2When/kg or specific surface area are bigger, select the former technology; When the altered material specific surface area is 400～700m 2/ kg or specific surface area more hour are selected the latter process, and guarantee that altered material specific surface area after grinding machine is levigate is 450～1000m 2/ kg.
The hydrothermal alteration treatment process connects with traditional grinding process with the alteration feed bin mutually by the current stabilization storehouse, has guaranteed that hydrothermal alteration treatment process and traditional stone one grinding process that coagulates become separately more independently system.
For specific inertia sal material, carry out in its alteration temperature requirement certain temperature province between 200～900 ℃, too high temperature can cause the crystallite of alteration formation or the metasable state structure of amorphous further to form new inertia crystalline mineral phase, even the generation partial melting forms SA high-polymerization degree glassy phase; Crossing low temperature then can not make the alteration reaction take place.Therefore particularly important to the strictness control in alteration temperature of reaction zone.The present invention selects fluidizing furnace and rotary kiln dryer as the hydrothermal alteration reactor.
Rotary dryer mainly is made up of parts such as solid of revolution, raising material unit, transmission mechanism, supporting devices.Its principle of work is: the grid type raising material unit is periodically evenly shed the intravital material of tube in rotary barrel efficiently, guarantee inert material and abundant catalytic while of alteration agent, by the elevated temperature heat air-flow moisture, CO in inert material and the alteration agent 2Separate Deng volatile matter.Early-stage Study result shows that mine tailing, red mud can improve 3～5 times through hydrothermal alteration deuterogene ability in 200 ℃～600 ℃ temperature ranges, and the cost of required rock forming agent also can descend significantly.
The concrete technical process of hydrothermal alteration is: coal dust enters fluidizing furnace (3) burning by coal bunker (1) through coal feeder (2), and burning produces 750 ℃～1000 ℃ high-temperature flue gas and enters dryer.Dryer (8) front end is established freezing air air-vent (7), requires temperature according to fluidizing furnace discharge high-temperature flue-gas and hydrothermal alteration reaction, determines the freezing air air output.The mixture of being made up of inertia sal material and alteration agent after weighing belt (5) weighing, enters dryer (8) by the opening for feed (6) that is positioned at the dryer inlet by current stabilization storehouse (4).Dryer is the hydrothermal alteration conversion zone for preceding half section, and the second half section is the altered material cooled region.Dryer tail gas temperature out is 80～300 ℃.Tail gas enters cyclonic separator (9) to be separated, and solid particulate and the isolating solid particulate of cyclonic separator are transported to alteration feed bin (12) via conveyor (11) in the dryer.
The characteristics of maximum of the present invention are to coagulate made of stones being equipped with in the technology in tradition to have introduced the hydrothermal alteration treatment process, this makes with fixed attention the stone raw material handle to be divided into two portions: a part is that inertia sal material and alteration agent form after by hydrothermal alteration system handles and grinding system and have the altered material of potential gelation activity, enters intermediate bin; Another part is that the material that had potential gelation activity, rock forming agent, gypsum are directly by entering intermediate bin behind the grinding system.
Coagulate stone knowhow in early stage and show that mill feed material size is one of principal element that influence mill output, grog before the mill and gypsum be earlier through the fragmentation of jaw crusher one-level, the incoming stock storehouse of difference behind the hyperchannel hammer mill two-stage crushing.
The silicate cement national standard tails over control foundation as product with 80 μ m square hole sieves, but 80 μ m tail over the grinding situation that stone is coagulated in reflection that is difficult to when fineness is thin, and is unsuitable as the quality control index that coagulates stone flour mill process.Early stage, knowhow showed, suit as the important indicator of weigh coagulating stone product mean particle size with specific surface area, and the preparation technology that different work in-process controlling index are set respectively can reach optimum performance and best economy.The present invention is according to material grindability classify grinding and different fineness control indexes, and can adopt flyash is grinding aid.The solid waste that will have the potential gelation activity back grinding of preparing burden, being milled to specific surface area is 400～800m 2Send into intermediate bin behind the/kg; Rock forming agent, gypsum are carried out grinding after preparing burden, being milled to specific surface area is 450～900m 2Send into intermediate bin behind the/kg.
In addition, homogenizing is to coagulate the important key link that stone is produced, homogenizing has not only guaranteed the stability of intensity, guaranteed that also other quality index (stability, fineness, time of coagulation, harmful chemical component etc.) all tends towards stability, also for stoneware, member, construction engineering quality provide assurance with fixed attention.Homogenizing process of the present invention was divided into for three steps, and promptly mixed, the homogenizing storehouse of powder stirrer mixes and the operation of falling the storehouse; By three step homogenization process, mixture can satisfy fully to coagulating the requirement of stone finished product, has avoided adopting expensive strength homogenization process; Material after homogenizing is qualified promptly becomes stone with fixed attention, and sends into finished bin.
Coagulating technical process fully made of stones is: grog and gypsum be incoming stock storehouse behind multiple stage crushing, goes into former feed bin after the water-containing materials drying; Solid waste with the potential gelation activity back grinding of preparing burden, levigate to specific surface area 400～800m 2Send into intermediate bin behind the/kg; Rock forming agent, gypsum or flyash carry out grinding after preparing burden, levigate to specific surface area 450～900m 2Send into intermediate bin behind the/kg; Inertia sal material and alteration agent are carried out grinding after preparing burden, levigate to specific surface area 400～1000m 2Enter the hydrothermal alteration system by the current stabilization storehouse behind the/kg, the material after the alteration enters the alteration feed bin; For the altered material specific surface area is 450～1000m 2When/kg or specific surface area were bigger, altered material directly entered intermediate bin by the alteration feed bin through the operation of falling the storehouse, when the altered material specific surface area is 400～700m 2/ kg or specific surface area more hour enter grinding machine by the alteration feed bin, and be levigate to specific surface knot 450～1000m 2Send into intermediate bin behind the/kg; Work in-process process in the intermediate bin is prepared burden the back by powder stirrer is mixed, homogenizing storehouse mixes and the operation of falling the storehouse promptly becomes stone with fixed attention, and sends into finished bin.
Beneficial effect:
(1) need to consume large quantities of lime stone resource, need be heated to the high temperature more than 1300 ℃ and consume a large amount of energy, discharge a large amount of obnoxious flavoures different with traditional cement two mills one firing technique, the present invention utilizes a large amount of inert solid wastes, the hydrothermal alteration reaction takes place in 200～900 ℃ of temperature ranges, energy expenditure and harmful gas emission significantly reduce, and are a kind of advanced technologies of energy-saving and cost-reducing and environmental protection;
(2) to coagulate Preparation Method made of stones different with tradition, the present invention can utilize a large amount of traditional cement and the original unavailable inertia sal of Preparation Method made of stones material that coagulates, this will store up destruction to ecotope alleviating inertia sal material, the release busy soil, the aspect that reduces production costs has obvious beneficial effect;
(3) utilize the travertine gelled material of inert solid waste preparation to have the advantage that cost is low, performance is good, mass-producing of the present invention is used has remarkable economical and social benefit.
Description of drawings
Fig. 1 is used to coagulate the hydrothermal alteration system device composition diagram that is equipped with made of stones.Among the figure, the 1st, coal bunker, the 2nd, coal feeder, the 3rd, fluidizing furnace, the 4th, current stabilization storehouse, the 5th, weighing belt, the 6th, dryer opening for feed, the 7th, dryer air-vent, the 8th, dryer, the 9th, cyclonic separator, the 10th, chain conveyor, the 11st, rotary conveyor, the 12nd, alteration feed bin.
Fig. 2 is a kind of coagulating of hydrothermal alteration method process flow diagram that is equipped with made of stones that adopts.
Embodiment
Further specify detailed summary of the invention of the present invention with embodiment below:
Embodiment 1
To go into the former feed bin of 6# after the coal gangue drying, incorporate lime and desulfurated plaster into 5# former feed bin as the alteration agent after according to 3: 1 mixed, blast-furnace slag, grog, rock forming agent and desulfurated plaster are gone into the former feed bin of 1～4# respectively.
Coal gangue and alteration agent are entered 3# raw material mill as the alteration mixture after according to 7: 1 ratio batch mixes, be milled to specific surface area greater than 450m 2/ kg enters the current stabilization storehouse then.The material of levigate mixing is sent into dryer by the current stabilization storehouse through inlet, and the hot flue gas that is produced by boiling furnace combustion enters dryer, and the dryer temperature in is controlled at 700～850 ℃; Altered material is the powdery altered material, enters behind the alteration feed bin and directly sends into the 5# intermediate bin through the operation of falling the storehouse.
Slag, grog are sent into 1# raw material mill after according to 1: 1 ratio batch mixes, grinding to surface-area greater than 450m 2Send into the 1# intermediate bin behind the/kg; Rock forming agent and gypsum are sent into 2# raw material mill after according to 1: 5 ratio batch mixes, grinding to the specific surface knot greater than 550m 2Send into the 3# intermediate bin behind the/kg.
Altered material work in-process in the intermediate bin, grog slag work in-process, rock forming agent gypsum work in-process are prepared burden according to 50: 43: 7 ratio, after the process powder stirrer mixes, send into the gas homogenization storehouse by blanking device, send into through the operation of falling the storehouse again and coagulate the stone finished bin, thus the final set stone product that obtains.
Carry out the experiment of glue sand to coagulating the stone product, the result is as follows.Following standard is quoted in test: " cement normal consistency water consumption, time of coagulation, the stability method of inspection " (GB1346-89), " the cement fineness method of inspection " (GB1345-91), " Test method for strength of hydraulic cement mortar (ISO method) " (GB/T17671-1999).Test-results sees Table 1 and table 2.
The physicals of table 1 travertine gelled material
Figure G2008102251846D0000061
The mechanical property of table 2 travertine gelled material
Figure G2008102251846D0000062
From the data of the table 1 of embodiment 1 and table 2 as can be seen, of the present inventionly coagulate the every national examination criteria that stone not only satisfies Portland cement, and its 28 days ultimate compression strength reach 51.3MPa.
Embodiment 2
To go into the former feed bin of 6# after the iron tailings drying, incorporate lime and desulfurated plaster into 5# former feed bin as the alteration agent after according to 2: 1 mixed, blast-furnace slag, grog, rock forming agent and desulfurated plaster are gone into the former feed bin of 1～4# respectively.Mine tailing and alteration agent are entered 3# raw material mill as the alteration mixture after according to 7: 1 ratio batch mixes, and being milled to specific surface area is 600m 2/ kg enters the current stabilization storehouse then.
The material of levigate mixing is sent into dryer by the current stabilization storehouse through inlet, and the hot flue gas that is produced by boiling furnace combustion enters dryer, and the dryer temperature in is controlled at 200～800 ℃; Altered material is a blocky altered material, sends into the 2# grinding machine with rotary conveyor after entering the alteration feed bin, and grinding to specific surface area is 600～650m 2Behind/the kg, enter the 5# intermediate bin.
Slag and grog are sent into 1# raw material mill after according to 2: 3 ratio batch mixes, and grinding is to surface-area 450～550m 2Send into the 1# intermediate bin behind the/kg; Rock forming agent and gypsum are sent into 2# raw material mill after according to 1: 5 ratio batch mixes, and grinding is to specific surface area 550～650m 2Send into the 3# intermediate bin behind the/kg.
After mixing through powder stirrer after the iron tailings altered material work in-process in the intermediate bin, grog slag work in-process, the rock forming agent gypsum work in-process batching, send into homogenizing storehouse by blanking device, send into through the operation of falling the storehouse again and coagulate the stone finished bin, obtain final set stone product.Different each age strength of glue sand of iron tailings altered material volume is as shown in table 3.
The mechanical property of table 3 travertine gelled material
Figure G2008102251846D0000071

Claims (6)

  1. One kind use inert material coagulate the stone production technique, it is characterized in that coagulating made of stones being equipped with in the technology has introduced the hydrothermal alteration treatment process, and this makes raw material handle to be divided into two portions: a part is inertia sal material to be made the altered material work in-process with potential gelation activity by hydrothermal alteration system handles and levigate process; Another part is that the material that will have potential gelation activity, rock forming agent, gypsum are directly by the levigate work in-process that are prepared into.
  2. 2. that uses inert material according to claim 1 coagulates the stone production technique, it is characterized in that the hydrothermal alteration treatment system is made up of fluidizing furnace, dryer and utility appliance; Dryer is the internally heated type rotary kiln, and its preceding half section is the hydrothermal alteration conversion zone, and the second half section is the altered material cooled region; Boiling furnace combustion produces high-temperature flue gas, and high-temperature flue gas is introduced dryer; At the dryer inlet, the mixture of being made up of inertia sal material and alteration agent enters dryer, is being subjected to heating back generation alteration; The dryer front end is provided with cool air inlet, regulates smoke inlet temperature in the dryer by changing air output in 200～900 ℃ temperature province.
  3. 3. use the stone production technique with fixed attention of inert material as claimed in claim 1 or 2, it is characterized in that the front end of hydrothermal alteration reactive system is provided with grinding machine and current stabilization storehouse, the front end grinding machine goes out grind materials specific surface area 400～1000m 2/ kg; Alteration feed bin or alteration feed bin and grinding machine are established according to the altered material fineness in the rear end, when the altered material specific surface area is 450～1000m 2When/kg or specific surface area were bigger, altered material directly entered intermediate bin by the alteration feed bin through the operation of falling the storehouse, when the altered material specific surface area is 400～700m 2/ kg or specific surface area more hour enter grinding machine by the alteration feed bin, and be levigate to specific surface knot 450～1000m 2Send into intermediate bin behind the/kg.
  4. 4. use inert material production to coagulate the technology of stone material as claim 1, it is characterized in that according to material grindability classify grinding and different fineness control indexes, the solid waste that is about to the to have potential gelation activity back grinding of preparing burden, levigate to specific surface area 400～800m 2Send into intermediate bin behind the/kg; Rock forming agent, gypsum are carried out grinding after preparing burden, levigate to specific surface area 450～900m 2Send into intermediate bin behind the/kg.
  5. 5. that uses inert material according to claim 1 coagulates the stone production technique, it is characterized in that carrying out homogenizing after work in-process in the intermediate bin are through batching, and homogenization process was divided into for three steps, and promptly mixed, the homogenizing storehouse of powder stirrer mixes and the operation of falling the storehouse; Material after homogenizing is qualified promptly becomes stone with fixed attention, and sends into finished bin.
  6. One kind use inert material coagulate the stone production unit, it is characterized in that equipment is made up of coal bunker (1), coal feeder (2), fluidizing furnace (3), current stabilization storehouse (4), weighing belt (5), dryer opening for feed (6) dryer air-vent (7), dryer (8), cyclonic separator (9), chain conveyor (10), rotary conveyor (11) alteration feed bin (12); Coal dust enters fluidizing furnace (3) burning by coal bunker (1) through coal feeder (2), and burning produces 750 ℃～1000 ℃ high-temperature flue gas and enters dryer; Dryer (8) front end is established freezing air air-vent (7), requires temperature according to fluidizing furnace discharge high-temperature flue-gas and hydrothermal alteration reaction, determines the freezing air air output; The mixture of being made up of inertia sal material and alteration agent after weighing belt (5) weighing, enters dryer (8) by the opening for feed (6) that is positioned at the dryer inlet by current stabilization storehouse (4); Dryer is the hydrothermal alteration conversion zone for preceding half section, and the second half section is the altered material cooled region; Dryer tail gas temperature out is 80～300 ℃; Tail gas enters cyclonic separator (9) to be separated, and solid particulate and the isolating solid particulate of cyclonic separator are transported to alteration feed bin (12) via conveyor (11) in the dryer.
CN200810225184A 2008-10-30 2008-10-30 Process and equipment for manufacturing cementitious material by using inert materials Pending CN101723609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810225184A CN101723609A (en) 2008-10-30 2008-10-30 Process and equipment for manufacturing cementitious material by using inert materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810225184A CN101723609A (en) 2008-10-30 2008-10-30 Process and equipment for manufacturing cementitious material by using inert materials

Publications (1)

Publication Number Publication Date
CN101723609A true CN101723609A (en) 2010-06-09

Family

ID=42445257

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200810225184A Pending CN101723609A (en) 2008-10-30 2008-10-30 Process and equipment for manufacturing cementitious material by using inert materials

Country Status (1)

Country Link
CN (1) CN101723609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821214A (en) * 2007-07-27 2010-09-01 卡尔斯鲁厄技术研究院 Single-phase hydraulic binder, it production method and use the material of construction that it makes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821214A (en) * 2007-07-27 2010-09-01 卡尔斯鲁厄技术研究院 Single-phase hydraulic binder, it production method and use the material of construction that it makes

Similar Documents

Publication Publication Date Title
CN106242509B (en) A kind of clinker bricks in environmental protection and preparation method thereof
CN100412020C (en) Process of preparing portland cement with waste ceramic tile polishing material
CN100562505C (en) Ultra-fine carbonate rock powder concrete composite blending material and preparation method thereof
CN107200486A (en) A kind of highly doped industrial residue cement and preparation method thereof
WO2013078839A1 (en) Method for calcining blending material with high activity by feeding outside kiln head and equipment thereof
CN105130220B (en) With discarded concrete and the method for sludge eco-cement and active sand
RU2505362C2 (en) Method of obtaining inorganic hydraulic binding substances
CN101445348B (en) Method for preparing sialite binding material with oil shale waste residues as main raw material
CN101143764A (en) Cement clinker prepared from dehydrated sludge burdening and preparation method thereof
CN105645794B (en) A kind of large dosage industrial residue portland cement preparation method
CN106904847B (en) A method of low fever's complex cement is mutually prepared using discarded concrete Behavior of Hardened Cement Paste
CN102976642B (en) Special silicate cement for nuclear power and production method thereof
CN105130221B (en) The method of comprehensive utilization discarded concrete and sludge system ecology clinker
CN101560079B (en) High-performance autoclaved brick prepared by silt-fly ash autoclave method
CN107056100A (en) A kind of preparation method of clinker
CN102295441A (en) Aerated concrete brick produced by using tailing slags
CN106630700A (en) Inorganic gelling material made from coal ash and waste glass and preparation method of inorganic gelling material
CN105621909B (en) It is a kind of to mix modified Desulphurization and the cement of rice hull ash again
CN102295467A (en) Method for preparing light ceramic particle from pyrite cinder
CN101391868B (en) Hydrothermal alternation pre-treatment process of inert salic material
CN104961363B (en) A kind of method of the active ground-slag of use shaft kiln factory and office reason discarded concrete system and aggregate
CN104446363A (en) Method of preparing ceramsite from manganese carbonate residues
CN106866091A (en) The system and method that a kind of utilization mineralized waste prepares building 3D printing material
CN106495623B (en) A method of steam-pressing brisk is prepared using molybdic tailing
CN100457673C (en) Lightweight waste slag haydite and its preparation method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20100609