CN104926215A - Method for producing premixed dry-mixed mortar from iron tailings - Google Patents

Method for producing premixed dry-mixed mortar from iron tailings Download PDF

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Publication number
CN104926215A
CN104926215A CN201510297648.4A CN201510297648A CN104926215A CN 104926215 A CN104926215 A CN 104926215A CN 201510297648 A CN201510297648 A CN 201510297648A CN 104926215 A CN104926215 A CN 104926215A
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CN
China
Prior art keywords
dry
iron tailings
mixed mortar
mix
mountain
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Pending
Application number
CN201510297648.4A
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Chinese (zh)
Inventor
刘文胜
胡迅
杨小江
费文坤
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MAANSHAN NANSHAN DEVELOPMENT Co
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MAANSHAN NANSHAN DEVELOPMENT Co
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Application filed by MAANSHAN NANSHAN DEVELOPMENT Co filed Critical MAANSHAN NANSHAN DEVELOPMENT Co
Priority to CN201510297648.4A priority Critical patent/CN104926215A/en
Publication of CN104926215A publication Critical patent/CN104926215A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a method for producing premixed dry-mixed mortar from iron tailings. According to the method, 52% of iron tailings and 27% mountain cutting waste rock generated during an ore-dressing process are used as raw materials, and 12% of cement, 6 percent of flay ash and 3 percent of external thickening production premixed dry-mixed mortar are added. According to the invention, an optimum raw material ratio of the premixed dry-mixed mortar produced from iron tailings is given, meanwhile, a process cycle and a process of producing the premixed dry-mixed mortar from iron tailings are given, iron tailings and mountain cutting waste rock generated during the ore-dressing process are used effectively, an environment-friendly building material is produced and comprehensive utilization of resources is realized.

Description

A kind of iron tailings produces premixing dry-mixed mortar method
Technical field
The present invention relates to iron tailings and produce environmental-friendly construction material technical field, particularly relate to a kind of iron tailings and produce premixing dry-mixed mortar method.
Background technology
China's major part iron ore grade is lower, will produce a large amount of mine tailings in recovery process and ore dressing process, and these remaining funds generally take the mode of directly piling up, and take big area soil, the objectionable constituent simultaneously in mine tailing, easy contaminated soil and underground water source.Simultaneously along with sending out fast of urban construction is opened, need a large amount of material of construction, exploitation nature stone material is produced and is added premixing dry-mixed mortar, and not only cost is high, and influence ecological environment.Material of construction is may be used for containing a large amount of quartzy compositions in mine tailing.-how to utilize CHARACTERISTICS OF TAILINGS SAND to produce premixing dry-mixed mortar, and make it meet national quality requirement, be the difficult point of research always.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of iron tailings to produce premixing dry-mixed mortar method.
The present invention is achieved by the following technical solutions:
A kind of iron tailings produces premixing dry-mixed mortar method, and with the iron tailings produced in ore dressing process and the barren rock that cuts into a mountain for raw material, add the cement of proper ratio, flyash, additional multiviscosisty produce premixing dry-mixed mortar, the proportioning of various material is: iron tailings 52%; Cut into a mountain barren rock 27%; Cement 12%; Flyash 6%; Premixing dry-mixed mortar 3% is produced in additional multiviscosisty; Concrete steps are as follows:
(1) select the barren rock that cuts into a mountain directly to be discharged into feeding hopper with iron tailings through shovel loader after crushing and screening, enter dryer through upper sand system, after going out machine, dry sand stores stored in dry sand steel storehouse after sending into vibratory screening apparatus sorting by lift; Dryer employing coal is fuel, fluidizing furnace is thermal source, and waste gas enters air by blower fan after the purification of air box impulse dust-precipitator;
(2) will cut into a mountain barren rock and iron tailings mixture draws off in steel storehouse, cement, flyash, additional multiviscosisty are produced premixing dry-mixed mortar after weighing hopper metering proportion, mix with cut into a mountain barren rock and iron tailings mixture respectively by worm conveyor, then enter in dry powder mortar mixing machine;
(3) material after accurate measurement proportioning enters dry powder mortar mixing machine, fully stirs make it mix through dry powder mortar mixing machine, goes out dry powder mortar mixing machine waste gas and enter air through blower fan after a plenum pulse cloth bag collector purifying treatment;
(4) the qualified dry-mix finished product going out dry powder mortar mixing machine sends into the storage of dry-mix finished product bin by worm conveyor and lift, and dry-mix is divided into two-way by style three-way distributor: a road directly enters bulk vehicle through bulk machine and transports building site to; One tunnel is transported to wrapping machine packaging through flute profile worm conveyor;
(5) dry-mix after packed is sent into stockyard by conveyor, pile chartered plane and artificial go-cart and is deposited.
Water ratio <0.5% after dry; Dry temperature out is 70 DEG C; Mesh size is 5.0mm; Mixing time: 1 ~ 3 minute; The input and output material time: 2 ~ 3 minutes; Bulk cargo density: 1.6kg/L; Loading time: 30 minutes; Package speed: 350 bags/h.
Advantage of the present invention is: The present invention gives the optimum material proportion that iron tailings produces premixing dry-mixed mortar, give process cycle and the technical process of iron tailings production premixing dry-mixed mortar simultaneously, effectively can utilize the iron tailings and the barren rock that cuts into a mountain that produce in ore dressing process, produce environmental-friendly construction material, achieve comprehensive utilization of resources.
Accompanying drawing explanation
Fig. 1 is workflow diagram of the present invention.
Embodiment
As shown in Figure 1, a kind of iron tailings produces premixing dry-mixed mortar method, with the iron tailings produced in ore dressing process and the barren rock that cuts into a mountain for raw material, add the cement of proper ratio, flyash, additional multiviscosisty produce premixing dry-mixed mortar, the proportioning of various material is: iron tailings 52%; Cut into a mountain barren rock 27%; Cement 12%; Flyash 6%; Premixing dry-mixed mortar 3% is produced in additional multiviscosisty; Concrete steps are as follows:
(1) select the barren rock that cuts into a mountain directly to be discharged into feeding hopper with iron tailings through shovel loader after crushing and screening, enter dryer through upper sand system, after going out machine, dry sand stores stored in dry sand steel storehouse after sending into vibratory screening apparatus sorting by lift; Dryer employing coal is fuel, fluidizing furnace is thermal source, and waste gas enters air by blower fan after the purification of air box impulse dust-precipitator;
(2) will cut into a mountain barren rock and iron tailings mixture draws off in steel storehouse, cement, flyash, additional multiviscosisty are produced premixing dry-mixed mortar after weighing hopper metering proportion, mix with cut into a mountain barren rock and iron tailings mixture respectively by worm conveyor, then enter in dry powder mortar mixing machine;
(3) material after accurate measurement proportioning enters dry powder mortar mixing machine, fully stirs make it mix through dry powder mortar mixing machine, goes out dry powder mortar mixing machine waste gas and enter air through blower fan after a plenum pulse cloth bag collector purifying treatment;
(4) the qualified dry-mix finished product going out dry powder mortar mixing machine sends into the storage of dry-mix finished product bin by worm conveyor and lift, and dry-mix is divided into two-way by style three-way distributor: a road directly enters bulk vehicle through bulk machine and transports building site to; One tunnel is transported to wrapping machine packaging through flute profile worm conveyor;
(5) dry-mix after packed is sent into stockyard by conveyor, pile chartered plane and artificial go-cart and is deposited.
Water ratio <0.5% after dry; Dry temperature out is 70 DEG C; Mesh size is 5.0mm; Mixing time: 1 ~ 3 minute; The input and output material time: 2 ~ 3 minutes; Bulk cargo density: 1.6kg/L; Loading time: 30 minutes; Package speed: 350 bags/h.

Claims (2)

1. an iron tailings produces premixing dry-mixed mortar method, it is characterized in that: with the iron tailings produced in ore dressing process and the barren rock that cuts into a mountain for raw material, add the cement of proper ratio, flyash, additional multiviscosisty production premixing dry-mixed mortar, the proportioning of various material is: iron tailings 52%; Cut into a mountain barren rock 27%; Cement 12%; Flyash 6%; Premixing dry-mixed mortar 3% is produced in additional multiviscosisty; Concrete steps are as follows:
(1) select the barren rock that cuts into a mountain directly to be discharged into feeding hopper with iron tailings through shovel loader after crushing and screening, enter dryer through upper sand system, after going out machine, dry sand stores stored in dry sand steel storehouse after sending into vibratory screening apparatus sorting by lift; Dryer employing coal is fuel, fluidizing furnace is thermal source, and waste gas enters air by blower fan after the purification of air box impulse dust-precipitator;
(2) will cut into a mountain barren rock and iron tailings mixture draws off in steel storehouse, cement, flyash, additional multiviscosisty are produced premixing dry-mixed mortar after weighing hopper metering proportion, mix with cut into a mountain barren rock and iron tailings mixture respectively by worm conveyor, then enter in dry powder mortar mixing machine;
(3) material after accurate measurement proportioning enters dry powder mortar mixing machine, fully stirs make it mix through dry powder mortar mixing machine, goes out dry powder mortar mixing machine waste gas and enter air through blower fan after a plenum pulse cloth bag collector purifying treatment;
(4) the qualified dry-mix finished product going out dry powder mortar mixing machine sends into the storage of dry-mix finished product bin by worm conveyor and lift, and dry-mix is divided into two-way by style three-way distributor: a road directly enters bulk vehicle through bulk machine and transports building site to; One tunnel is transported to wrapping machine packaging through flute profile worm conveyor;
(5) dry-mix after packed is sent into stockyard by conveyor, pile chartered plane and artificial go-cart and is deposited.
2. produce premixing dry-mixed mortar method according to a kind of iron tailings described in claim 1, it is characterized in that: water ratio <0.5% after dry; Dry temperature out is 70 DEG C; Mesh size is 5.0mm; Mixing time: 1 ~ 3 minute; The input and output material time: 2 ~ 3 minutes; Bulk cargo density: 1.6kg/L; Loading time: 30 minutes; Package speed: 350 bags/h.
CN201510297648.4A 2015-06-02 2015-06-02 Method for producing premixed dry-mixed mortar from iron tailings Pending CN104926215A (en)

Priority Applications (1)

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CN201510297648.4A CN104926215A (en) 2015-06-02 2015-06-02 Method for producing premixed dry-mixed mortar from iron tailings

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Application Number Priority Date Filing Date Title
CN201510297648.4A CN104926215A (en) 2015-06-02 2015-06-02 Method for producing premixed dry-mixed mortar from iron tailings

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105541233A (en) * 2016-01-18 2016-05-04 丁海棠 Ferrous mine tailing-based pre-mixed mortar
CN106316287A (en) * 2016-08-18 2017-01-11 大连地拓重工有限公司 Method for preparing comprehensively stabilized pavement base material with iron tailings and waste rocks
CN107365115A (en) * 2017-08-17 2017-11-21 岳阳科环建材有限责任公司 The premixing dry-mixed mortar and its manufacture craft produced using fluorite mine tailing and coal acid anhydride stone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880142A (en) * 2010-06-25 2010-11-10 河北科技大学 Method for preparing wall and floor tile adhesive mortar by using mill tailings
CN103113056A (en) * 2013-02-18 2013-05-22 桐乡正昶新型材料有限公司 Mortar and preparation method thereof
CN103319126A (en) * 2013-06-05 2013-09-25 绍兴益生砂浆有限公司 Novel dry-mixing masonry mortar
CN103539425A (en) * 2013-09-29 2014-01-29 张伟 Composition for preparing dry-mixed mortar

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880142A (en) * 2010-06-25 2010-11-10 河北科技大学 Method for preparing wall and floor tile adhesive mortar by using mill tailings
CN103113056A (en) * 2013-02-18 2013-05-22 桐乡正昶新型材料有限公司 Mortar and preparation method thereof
CN103319126A (en) * 2013-06-05 2013-09-25 绍兴益生砂浆有限公司 Novel dry-mixing masonry mortar
CN103539425A (en) * 2013-09-29 2014-01-29 张伟 Composition for preparing dry-mixed mortar

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
尤大晋: "《预拌砂浆实用技术》", 31 December 2010, 化学工业出版社 *
张秀芳等: "《建筑砂浆技术解读470问》", 31 August 2009, 中国建材工业出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105541233A (en) * 2016-01-18 2016-05-04 丁海棠 Ferrous mine tailing-based pre-mixed mortar
CN106316287A (en) * 2016-08-18 2017-01-11 大连地拓重工有限公司 Method for preparing comprehensively stabilized pavement base material with iron tailings and waste rocks
CN107365115A (en) * 2017-08-17 2017-11-21 岳阳科环建材有限责任公司 The premixing dry-mixed mortar and its manufacture craft produced using fluorite mine tailing and coal acid anhydride stone

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Application publication date: 20150923