CN101935178A - Accelerating agent - Google Patents

Accelerating agent Download PDF

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Publication number
CN101935178A
CN101935178A CN2010102759259A CN201010275925A CN101935178A CN 101935178 A CN101935178 A CN 101935178A CN 2010102759259 A CN2010102759259 A CN 2010102759259A CN 201010275925 A CN201010275925 A CN 201010275925A CN 101935178 A CN101935178 A CN 101935178A
Authority
CN
China
Prior art keywords
coal
coal ash
powder
ash
calcining
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
CN2010102759259A
Other languages
Chinese (zh)
Inventor
吴兴荣
高晓云
徐家连
狄崇耀
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.)
XUZHOU HUATAI CONCRETE ADDITIVE FACTORY
Original Assignee
XUZHOU HUATAI CONCRETE ADDITIVE FACTORY
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 XUZHOU HUATAI CONCRETE ADDITIVE FACTORY filed Critical XUZHOU HUATAI CONCRETE ADDITIVE FACTORY
Priority to CN2010102759259A priority Critical patent/CN101935178A/en
Publication of CN101935178A publication Critical patent/CN101935178A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/32—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/48—Clinker treatment
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention relates to an accelerating agent prepared by the steps of preparing 35wt% of bauxite, 24wt% of sodium carbonate, 30wt% of limestone and 11wt% of coal into raw materials; grinding into powder; calcining into alumina clinker in a high temperature furnace section of 1250 DEG C; grinding the alumina clinker into powder, wherein the fineness is less than 15%; and uniformly stirring 40 to 60wt% of alumina clinker powder and 40 to 60wt% of coal ash. The coal ash is prepared by calcining coal gangue through a fluidized bed boiler, the active constituents of volcanic ash in the coal ash are much, and the content of Al2O3 reaches 27.39% (while the content of alunite is about 20%), so that the coagulation time is further shortened and the later strength of concrete is guaranteed under the active action of the volcanic ash. The accelerating agent has the advantages that wastes are changed into beneficial materials by utilizing the coal ash in power plants; the pollution of the coal ash to the environment is reduced; the alunite requiring high temperature calcining is simultaneously omitted; the electric energy is saved; the production cost is reduced; and the later strength of the concrete is guaranteed.

Description

Accelerating chemicals
Technical field
The present invention relates to a kind of Hardenfast, in particular for the novel high-strength accelerating chemicals that uses in the constructions such as mine, tunnel, subway.
Background technology
Known concrete accelerating chemicals is to be added through blended materials such as the alunite of high-temperature calcination and alum mud, gypsum by aluminum oxide clinker to make, thereby causes concrete later strength lower, and the rebound degree height can not adapt to construction process requirement, can not guarantee construction quality.Because of need high-temperature calcination alunite, increase power consumption simultaneously, caused production cost of products higher.
Summary of the invention
The objective of the invention is to provide a kind of accelerating chemicals that utilizes the flyash production of power plant, this accelerating chemicals greatly reduces production cost, has guaranteed the raising of construction quality.
The object of the present invention is achieved like this: by weight with 35% bauxitic clay, 24% soda ash, 30% Wingdale, 11% coal is mixed with raw material, pulverize enters 1250 ℃ of High Temperature Furnaces Heating Apparatus sections and burns till aluminum oxide clinker, the aluminum oxide clinker pulverize, fineness is less than 15%, gets final product after the flyash with the aluminum oxide clinker powder of 40-60% and 40-60% stirs.
Flyash is generated by the calcining of coal gangue through Fluidized Bed Boiler, its pozzolanic activity composition is more, and Al2O3 content reaches 27.39% (and alunite is about 20%), thereby makes the agglomerative time further shorten, under the effect of pozzolanic activity, guaranteed concrete later strength.
Advantage of the present invention: utilize the flyash of power plant, turn waste into wealth, reduced the pollution of flyash to environment; Because of having saved the alunite of high-temperature calcination, save electric energy simultaneously, reduced production cost, guaranteed concrete later strength.
Embodiment
With 35 kilograms bauxitic clay, 24 kilograms of soda ash, 30 kilograms lime, 11 kilograms coal is mixed with raw material, through 1.5 meters large-size ball mills, wear into fineness less than 15% powder, become through pan-pelletizer group that about 15mm's is spherical, advance 1250 ℃ blast furnace high-temperature calcination, generate aluminum oxide clinker, enter the ball mill grinding, fineness gets final product less than 15%, get 50 kilograms aluminum oxide clinker powder and 50 kilograms flyash then, stirring gets final product.Water ratio is starched initial set time of coagulation less than 3 minutes only less than 2%, and final set was less than 5 minutes, and 1 day ultimate compression strength is greater than 10Mpa, and strength ratio was greater than 85% in 28 days.

Claims (1)

1. accelerating chemicals, it is characterized in that: by weight with 35% bauxitic clay, 24% soda ash, 30% Wingdale, 11% coal is mixed with raw material, pulverize, enter 1250 ℃ of High Temperature Furnaces Heating Apparatus sections and burn till aluminum oxide clinker, aluminum oxide clinker pulverize, fineness be less than 15%, gets final product after the flyash with the aluminum oxide clinker powder of 40-60% and 40-60% stirs.
CN2010102759259A 2010-09-02 2010-09-02 Accelerating agent Pending CN101935178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102759259A CN101935178A (en) 2010-09-02 2010-09-02 Accelerating agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102759259A CN101935178A (en) 2010-09-02 2010-09-02 Accelerating agent

Publications (1)

Publication Number Publication Date
CN101935178A true CN101935178A (en) 2011-01-05

Family

ID=43388783

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102759259A Pending CN101935178A (en) 2010-09-02 2010-09-02 Accelerating agent

Country Status (1)

Country Link
CN (1) CN101935178A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102584068A (en) * 2012-01-12 2012-07-18 焦作市新筑王材料科技有限公司 Powder accelerator prepared from burnt coal gangue and used for sprayed concrete and preparation method of powder accelerator
CN102584067A (en) * 2012-01-12 2012-07-18 焦作市新筑王材料科技有限公司 Powder accelerator for sprayed concrete manufactured by red mud and manufacturing method for powder accelerator
CN102718425A (en) * 2012-07-04 2012-10-10 欧阳湘新 Accelerator produced by red mud as main material
CN103739221A (en) * 2013-12-17 2014-04-23 南充春飞纳米晶硅技术有限公司 High efficiency accelerator and its production method
CN103979818A (en) * 2014-05-16 2014-08-13 北京市新世纪东方建筑材料有限公司 Low-alkaline accelerator and preparation method thereof
CN104110101A (en) * 2014-06-26 2014-10-22 湖南荣佳建材科技有限公司 Split head
CN107698185A (en) * 2017-09-27 2018-02-16 安顺市西秀区庄平新型建材有限公司 A kind of concrete accelerator and preparation method thereof
CN113185172A (en) * 2021-04-20 2021-07-30 浙江交工集团股份有限公司 Bi-component accelerator, wet-spraying concrete and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1478750A (en) * 2003-06-30 2004-03-03 徐州华泰混凝土外加剂厂 Jet concrete fast hardening agent
CN1962524A (en) * 2006-11-24 2007-05-16 张洪伟 Cement calcine-free quick coagulator and its production process
CN101549971A (en) * 2009-05-22 2009-10-07 山东省建筑科学研究院 Preparation method of magnesite cement material accelerator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1478750A (en) * 2003-06-30 2004-03-03 徐州华泰混凝土外加剂厂 Jet concrete fast hardening agent
CN1962524A (en) * 2006-11-24 2007-05-16 张洪伟 Cement calcine-free quick coagulator and its production process
CN101549971A (en) * 2009-05-22 2009-10-07 山东省建筑科学研究院 Preparation method of magnesite cement material accelerator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102584068A (en) * 2012-01-12 2012-07-18 焦作市新筑王材料科技有限公司 Powder accelerator prepared from burnt coal gangue and used for sprayed concrete and preparation method of powder accelerator
CN102584067A (en) * 2012-01-12 2012-07-18 焦作市新筑王材料科技有限公司 Powder accelerator for sprayed concrete manufactured by red mud and manufacturing method for powder accelerator
CN102718425A (en) * 2012-07-04 2012-10-10 欧阳湘新 Accelerator produced by red mud as main material
CN103739221A (en) * 2013-12-17 2014-04-23 南充春飞纳米晶硅技术有限公司 High efficiency accelerator and its production method
CN103979818A (en) * 2014-05-16 2014-08-13 北京市新世纪东方建筑材料有限公司 Low-alkaline accelerator and preparation method thereof
CN104110101A (en) * 2014-06-26 2014-10-22 湖南荣佳建材科技有限公司 Split head
CN107698185A (en) * 2017-09-27 2018-02-16 安顺市西秀区庄平新型建材有限公司 A kind of concrete accelerator and preparation method thereof
CN113185172A (en) * 2021-04-20 2021-07-30 浙江交工集团股份有限公司 Bi-component accelerator, wet-spraying concrete and preparation method thereof

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SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
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Application publication date: 20110105