CN1044359C - Engrg. earth made from alkaline residue, making method and apparatus thereof - Google Patents

Engrg. earth made from alkaline residue, making method and apparatus thereof Download PDF

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Publication number
CN1044359C
CN1044359C CN96109572A CN96109572A CN1044359C CN 1044359 C CN1044359 C CN 1044359C CN 96109572 A CN96109572 A CN 96109572A CN 96109572 A CN96109572 A CN 96109572A CN 1044359 C CN1044359 C CN 1044359C
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China
Prior art keywords
alkaline residue
soil
engineering soil
consumption
auxiliary material
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Expired - Fee Related
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CN96109572A
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Chinese (zh)
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CN1140151A (en
Inventor
杨慧敏
贺维民
王改华
胡汉隆
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Tianjin Caustic Sludge Real Estate Dev Co ltd
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Tianjin Caustic Sludge Real Estate Dev Co ltd
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Priority to CN96109572A priority Critical patent/CN1044359C/en
Publication of CN1140151A publication Critical patent/CN1140151A/en
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    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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

Abstract

The present invention relates to engineering soil made of caustic sludge, a manufacture method thereof and equipment thereof. The engineering soil made of caustic sludge comprises 60% to 100% of caustic sludge and 0% to 40% of auxiliary materials, wherein the auxiliary materials comprise one kind, two kinds or several kinds of powder coal ash, cement, yellow soil, slit, sea sand, liquid sludge, coal waste rock, calcium oxide, calcium sulphate and return sand. The engineering soil made of caustic sludge can replace yellow soil to be used as engineering backfilling soil, foundation soil for buildings, roadbed soil for roads, dam soil, etc., and can be used as greening filling soil for new seaside areas. The present invention has the advantages of convenient operation, large treating capacity and easy popularization and use.

Description

Alkaline residue making engineering soil using and manufacture method thereof and equipment
The present invention relates to solvay soda process and produce the utilization of waste residue in the soda ash process, particularly a kind of alkaline residue making engineering soil using and manufacture method and equipment.
Soda ash is important chemical material.At present, many in the world countries still adopt solvay soda process to produce soda ash.The famous Tianjin Caustic Soda Plant of China adopts solvay soda process to produce soda ash exactly, now year history surplus in the of existing 70.This method deadly defect is a large amount of liquid and waste slag produced of discharging in producing; the main way that countries in the world waste liquor of ammonia soda plant waste residue is handled; most factories still adopt passive traditional method; be about to liquid and waste slag produced discharging respectively; the suspension waste liquid that distillation tower is discharged through clarification separation, carbonization, neutralization or seawater convert close etc. handle after, just can enter rivers,lakes and seas or inject underground oil wells, mine etc.Waste residue is then taked to build a dam and is stored up or the like in debris retaining, the defined area.
Alkaline residue is piled up all the year round, contaminate environment, and land occupation, so the comprehensive utilization of alkaline residue is one of research topic of everybody common concern always.At present, to alkaline residue comprehensive utilization aspect, more existing reports, for example: the method for waste residue system cement (CN87108216), the method CN93117804.5 of making backfill with caustic sludge coal ash, and for example: Deutsches Wirtschafts Patent DD39590 " with the heavy alkali hydrochlorate of waste residue processing alkali or alkaline-earth metal ", U.S. Pat 2474381 " method that adds pitch system roof slab, bituminous concrete and bypass material with waste residue " etc., in the above-mentioned patented method, some treatment process is complicated, the alkaline residue treatment capacity that has is few, and the heavy industrialization processing remains further perfect.
The alkaline residue making engineering soil using that the purpose of this invention is to provide a kind of better performances, this soil manufacturing process is simple, less investment, can handle waste residue, practicality in a large number, and the present invention also provides a kind of specific equipment, and this equipment is suitable for, treatment capacity is big.
For achieving the above object, the present invention by the following technical solutions, this alkaline residue making engineering soil using comprises: alkaline residue, auxiliary material, auxiliary material comprise in flyash, cement, loess, river sand, sea sand, liquid slag, coal gangue, calcium oxide, calcium sulfate, the sand return one or both or multiple, alkaline residue and ratio of adjuvant are that alkaline residue accounts for 60-100% (weight) auxiliary material and accounts for 0-40% for every kind; The manufacture method of alkaline residue making engineering soil using comprises: with alkaline residue and auxiliary material fusion, after stirring (artificial or machinery), shine through cold, seasoning obtains product again; The equipment of alkaline residue making engineering soil using comprises: support, the support mixing drum of having put on the shelf, have hopper, discharge port on the tube, and feeding spiro rod is bearing on the bearing, by motor drives.
Consider that alkaline residue is the solid materials that a kind of hole is big, particle is thin, usually its material footpath 2-5 μ m only.But often not to exist, but constitute aggregate, further constitute the aggregate that diameter is 15-25 μ m by aggregate by a plurality of particles by single particle, therefore, alkaline residue has the space system that the utmost point is grown, the alkaline residue space is big, water ratio is high reason that Here it is, obviously, reduce the alkaline residue water ratio, reduce the space, key is to destroy the skeleton of aggregate and aggregate, eliminates their big gap, on the other hand, in order to make the alkaline residue making engineering soil using obtain physical and chemical performance preferably.Be necessary to add some and have active effective constituent, make itself and alkaline residue that a series of hydrations take place, quicken the curing reaction of alkaline residue inner material, the auxiliary material that can add has river sand, sea sand, flyash, cement, loess, liquid slag, calcium sulfate, sand return etc., after mixing, its auxiliary material can change performance preferably, but except that considering performance, also should consider water absorbability to alkaline residue, change the globule size of alkaline residue making engineering soil using and the color of alkaline residue making engineering soil using etc., selecting also should to consider raw material sources on the auxiliary material, the cost height uses alkaline residue as much as possible in a large number, waste material.In the auxiliary material used herein, adopting flyash, cement in some prescription is auxiliary material, purpose also is to guarantee the granular size of engineering earth, and flyash can strengthen the engineering earth granularity, helps osmosis, flyash has hygroscopic effect to alkaline residue, and can change the color of engineering earth, and also using alkaline residue simultaneously as much as possible in a large number, reduce cost, the consumption of these two kinds of auxiliary materials is that flyash is controlled at 8-30%, cement 4-10%, all the other are alkaline residue.As trinity mixture fill, cement consumption can be got high value so as needs.
Alkaline residue also can be waste residue liquid through settling tank, supernatant liquor is discharged, remaining bottom slag obtains containing the alkaline residue of certain moisture content, the same alkaline residue of all the other steps through press filtration.The water content of alkaline residue is generally between 40-65% (wet basis).
Embodiment 1:
Get Tianjin Caustic Soda Plant's alkaline residue, main component is CaCO in the alkaline residue 336-61%, CaCl 25-16%, Mg (OH) 24-13%, SiO 25-10%, CaSO 41-6%, H 2O50-64% (each component content summation of alkaline residue is 100%), consumption is 86.95 parts, get 8.7 parts of army provisions city power plant fly ash, 4.35 parts of (weight) alkaline residues of 425 ordinary Portland cements sample adopts the mode that manually takes, be transported to the test site, stirrer adopts the alkaline residue stirrer, and the mixture churning time is 1-2 minute.Generate cement mortar shape product No. 5, product is on natural ground, or suits measures to local conditions, i.e. airing on the construction ground such as beach, depression, roadbed, sea wall, and airing thickness is 5cm-20cm, general airing 24-72 hour, along with the increase of airing time, water content reduced.Engineering earth is a seemingly silt material of a kind of light weight, grain diameter, and after tested, the proportion of alkaline residue engineering earth is 2.6; Liquefaction phenomenon can not take place in the alkaline residue making engineering soil using after the compacting under 7 ° of earthquake intensitys; Alkaline residue making engineering soil using physical and mechanical property after compacting all is higher than general plain soil, hits real state by the best and draws: the interval 47-54% of optimum moisture content, corresponding dry capacity γ 4=8.8-9.0KN/m 3, perviousness is similar to silt, coefficient of permeability K=n * 10 5Cm/sec, belong to moderate, the shear strength height, force of cohesion C=41KPa, internalfrictionangle=28 °, ultimate compression strength, modulus of compression are higher, and with increasing to some extent the length of time, if γ λ reaches 8.0KN/m 3, compaction coefficient is greater than 1.9, and so, the bearing capacity basic value can reach more than the 150KPa, and the alkaline residue making engineering soil using can replace loess to make the engineering backfill soil, also can make building lot native, the dykes and dams soil etc. of soil and road foundation.Because the osmotic coefficient ratio unselected clay of alkaline residue making engineering soil using is big, can be according to of the different requirements of backfill area to greening, take to mix with loess, flexible way such as layered mats to be to improve the greening condition, the trickle of alkaline residue making engineering soil using is all better than former alkaline residue and bay mud, the alkaline residue making engineering soil using can be done banketing of newly developed area, beach greening, solve the salt flat greening with native problem in short supply, reduce gardening expense greatly, produce remarkable economical, ecology and environmental benefit.
After standing to drench with rain and soak, alkaline residue making engineering soil using product can not reply the body of paste of former alkaline residue, the alkaline residue making engineering soil using is used for the solonchak range of distribution, sodium in its surrounding soil, chlorine, total salt quantity all are lower than each component amount in the solonchak range of distribution, calcium increases to some extent, this is favourable to the physicochemical character that progressively improves this area soil, alkaline residue can not cause heavy metal contamination to environment, and the trickle performance of alkaline residue making engineering soil using is all better than former alkaline residue and bay mud, therefore can do banketing of newly developed area, beach greening.When burying steel and concrete in the alkaline residue making engineering soil using underground, can take the corresponding anti-corrosion measure of this area to get final product, needn't consider special processing.
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1: alkaline residue stirrer front view
The vertical view of Fig. 2: Fig. 1
The A-A sectional view of Fig. 3: Fig. 2
Fig. 1, Fig. 2, Fig. 3 have represented that the alkaline residue stirrer constitutes, it comprises support, mixing drum 2, have hopper 3, discharge port 7 on the tube, this stirrer is that spiral promotes stirrer, and its feeding spiro rod is bearing on the bearing 8, drive by electric motor 6,5 is reduction box, and the pressure angle of feeding spiro rod is 15 °, and that screw rod comprises is reinforced, mix two sections, mixing section is the batch mixing section of 60 ° of back taper band batch mixing cuttves, and batch mixing cutter formula in the shape of a spiral is distributed in cone.Need mixture to send into by reinforced hopper, through feeding, mixing, mixture is mixed, stir, grind from discharge port 7 and discharge, 4 is water tank among the figure, 1 is viewing window, for operation is carried out better, at an end of screw rod scraper plate is housed, make to stick to the material that stirs on the barrel and deliver to discharge port and discharge.
Advantage of the present invention: alkaline residue making engineering soil using provided by the invention is that a kind of good engineering is with native, the native country has made full use of the alkaline residue of a large amount of stackings, both administered pollution, make the comprehensive utilization of alkaline residue solid waste again, this project is simple with the manufacture method of soil, less investment, and the short period of time can be handled a large amount of alkaline residues, the efficient height, be easy to apply, the equipment that is provided can be accelerated the processing progress greatly, and treatment capacity is big.
This alkaline residue making engineering soil using has fundamentally solved and has restricted the alkaline residue handling problem that soda ash is produced in domestic and international solvay soda process in the last hundred years.

Claims (6)

1, a kind of alkaline residue making engineering soil using, it is characterized in that it comprises: alkaline residue, auxiliary material, described auxiliary material comprise in flyash, liquid slag, the coal gangue at least a, and consumption accounts for 8-30%, also have a kind of cement, its consumption is at 4-10%, and all the other are alkaline residue (weight percent).
2, alkaline residue making engineering soil using according to claim 1 is characterized in that: described flyash consumption accounts for 8.7%, and cement accounts for 4.35%, and all the other are alkaline residue.
3, a kind of method of making the alkaline residue making engineering soil using, it is characterized in that: described raw material is that alkaline residue, the described auxiliary material of auxiliary material comprise that flyash, liquid slag, at least a consumption of coal gangue account for 8-10%, also have a kind of cement, its consumption at 4-10%, all the other are alkaline residue, earlier with alkaline residue and auxiliary material fusion; After stirring, shine through cold again; Seasoning obtains product.
4, the method for alkaline residue making engineering soil using according to claim 3 is characterized in that: described stirring is a mechanical stirring.
5, the manufacture method of alkaline residue making engineering soil using according to claim 4, it is characterized in that: described supplementary product consumption is a flyash 8.7%, cement 4.35%, and said mixture stirred 1-2 minute through stirrer, through seasoning 24-72 hour, the product smile thickness that dries in the air was 5-20cm.
6, a kind of equipment of alkaline residue making engineering soil using, it is characterized in that it comprises: support, the support mixing drum of having put on the shelf, have hopper, discharge port on the tube, feeding spiro rod is bearing on the bearing, by motor drives, the pressure angle of described feeding spiro rod is 15 °, and screw rod comprises the batch mixing section of feeding section and 60 ° of back taper band batch mixing cuttves, batch mixing cutter shape in the shape of a spiral is distributed on the cone, and screw rod one end has scraper plate.
CN96109572A 1996-09-02 1996-09-02 Engrg. earth made from alkaline residue, making method and apparatus thereof Expired - Fee Related CN1044359C (en)

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CN1044359C true CN1044359C (en) 1999-07-28

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1068898C (en) * 1998-02-26 2001-07-25 河南油田天鹏实业公司 Utilization of waste causticized sand sludge
GB2338706B (en) * 1998-06-27 2002-03-27 John Charles Berry Growing medium for derelict land
CZ305654B6 (en) * 2008-04-07 2016-01-27 Robert Štěpánek Material treatment apparatus
CN102352622B (en) * 2011-07-25 2013-12-11 河海大学 Method for improving swelling soil by using alkali residue and construction method for alkali- residue-modified soil
CN102659383B (en) * 2012-06-01 2013-09-18 北京华夏先河新材料有限公司 Repairing material of cement concrete structure and preparation method for same
CN102718431B (en) * 2012-06-17 2013-09-11 邹宜哲 Concrete channel permeability-reducing agent and preparation method and purpose thereof
CN102895893A (en) * 2012-09-27 2013-01-30 张美玲 Auger stirrer for sea salt
CN104402393A (en) * 2014-10-23 2015-03-11 连云港中科博创科技有限公司 Preparation method of backfill soil for capital construction foundation engineering
CN108273411A (en) * 2018-01-17 2018-07-13 浙江精锐机械科技有限公司 A kind of multi-purpose type hybrid process all-in-one machine
CN116328699B (en) * 2022-12-28 2023-11-07 安徽盛世新能源材料科技有限公司 Desulfurization ash treatment device
CN116063036B (en) * 2023-03-03 2023-07-21 佛山市穗鑫建材有限公司 Preparation formula and preparation method of bentonite

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682447A (en) * 1970-10-12 1972-08-08 Supraton Bruchmann & Zucker Kg Apparatus for producing dispersions or solutions from a liquid component and a solid or pasty component
CN1100485A (en) * 1993-09-16 1995-03-22 刘生泰 Method for making backfill with caustic sludge coal ash

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682447A (en) * 1970-10-12 1972-08-08 Supraton Bruchmann & Zucker Kg Apparatus for producing dispersions or solutions from a liquid component and a solid or pasty component
CN1100485A (en) * 1993-09-16 1995-03-22 刘生泰 Method for making backfill with caustic sludge coal ash

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
纯碱工业 1994.2.25 化工部制碱研究所，冷际声 *

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