CN1153754A - Manhole cover of artificial quartzite and support and their prodn process - Google Patents

Manhole cover of artificial quartzite and support and their prodn process Download PDF

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Publication number
CN1153754A
CN1153754A CN96119567A CN96119567A CN1153754A CN 1153754 A CN1153754 A CN 1153754A CN 96119567 A CN96119567 A CN 96119567A CN 96119567 A CN96119567 A CN 96119567A CN 1153754 A CN1153754 A CN 1153754A
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CN
China
Prior art keywords
manhole cover
bearing
magnesian
quartz sand
weight
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
CN96119567A
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Chinese (zh)
Inventor
赵成文
李清华
刘铭瑚
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SHENYANG POLYTECHNICAL PROFESSIONAL COLLEGE
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SHENYANG POLYTECHNICAL PROFESSIONAL COLLEGE
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Application filed by SHENYANG POLYTECHNICAL PROFESSIONAL COLLEGE filed Critical SHENYANG POLYTECHNICAL PROFESSIONAL COLLEGE
Priority to CN96119567A priority Critical patent/CN1153754A/en
Publication of CN1153754A publication Critical patent/CN1153754A/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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
    • C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The manhole cover with support is produced with quartzite as main material, waste slag from sulfuric acid plant as supplement, reinforcing material and active magnesia as binding material. The production process includes mortar compounding, moulding by placing mortor and reinforcing material into mould, demoulding after 2-3 hr, curing and anticorrosive treatment during temp reducing. The said product has its performance comparable to cast iron ones but very low cost.

Description

Artificial quartz in lump manhole cover and bearing and manufacture method thereof
The present invention relates to a kind of manhole cover and bearing and manufacture method thereof, especially for artificial quartz in lump manhole cover and the bearing and the manufacture method thereof of tap water, draining, heating power, water plug etc.
At present, the manhole cover and the bearing that are used for tap water, draining, heating power, water plug etc. all are to form with iron founding, because manhole cover and bearing demand are big, so pig iron consumption is also big, add that the pig iron is national important raw and processed materials, stolen phenomenon often takes place in the manhole cover on the road limit.Simultaneously, castmethod is produced manhole cover and bearing, and work situation is abominable, and labour intensity is big, and consumes a large amount of energy.
The purpose of this invention is to provide a kind of artificial quartz in lump manhole cover and bearing, this manhole cover and bearing starting material cheap and also aspect intensity, hardness and toughness not second to pig iron manhole cover and bearing.
Another object of the present invention provides the manufacture method of a kind of artificial quartz in lump manhole cover and bearing, and this manufacture method labour intensity is low, improved work situation and save the energy.
Artificial quartz in lump manhole cover provided by the invention and bearing are made of the solids of amalgamation body quartz sand, vitriol works's waste residue, jointing material, strongthener and sanitas.Quartz sand is 70～120 orders; Vitriol works's waste residue includes Fe 3O 4Weight percent 45%～55%, Fe 2O 3Weight percent be 5%～15%, SiO 2Weight percent be 35%～45%; Jointing material is the compound magnesia oxychloride cement of magnesium oxide and magnesium chloride solution, and magnesian activity accounts for weight percent 60%～80%, and the purity of the magnesium chloride hexahydrate in the magnesium chloride solution is more than 45%; Strongthener is middle alkali fiber base cloth, grid cloth, land silk, the silk of operating on; Sanitas is the neoprene latex pitch prill.
The manufacture method of artificial quartz in lump manhole cover provided by the invention and bearing comprises: magnesium oxide, magnesium chloride solution, quartz sand, vitriol works's waste residue were formed slurry in 8～10 minutes by stirring to block, then slurry and strongthener are put into the mould of manhole cover and bearing, keep 20 ℃ ± 3 ℃ of envrionment temperatures, initial set is no earlier than 40 minutes, final set is not later than 7 hours, with the demoulding in 2～3 hours was good, kept flat maintenance after the demoulding, did rotproofing during cooling.Magnesium oxide, magnesium chloride solution, quartz sand are to form slurry (relative wearing layer slurry cited below by following ratio through stirring with the vitriol works waste residue, this slurry claims the matrix slurry): with magnesian weight is radix, and magnesium chloride solution and magnesian weight ratio are pressed chemical formula 5MgO+MgCL 26H 2O+7H 2O=5Mg (OH) 2MgCL 28H 2Among the O separately the ratio of molecular weight calculate, wherein magnesium oxide calculates with active weight; For manhole cover, quartz sand and magnesian weight ratio are 0.8～2: 1, and vitriol works's waste residue and magnesian weight ratio are 0.3～0.5: 1; For checking bearing, quartz sand and magnesian weight ratio are 1～2: 1, and vitriol works's waste residue and magnesian weight ratio are 0.5～1: 1.The mould of manhole cover and bearing is made by the glass fibre magnesia oxychloride cement.Strongthener is middle alkali fiber base cloth, grid cloth, land the silk and the silk of operating on.Keep flat maintenance after the demoulding 3～5 days, and kept envrionment temperature more than 15 ℃.Rotproofing is handled with the neoprene latex pitch prill.
Main raw material quartz sand of the present invention, vitriol works's waste residue price are very cheap, wide material sources, after tested, artificial quartz in lump manhole cover and the bearing that comes out constructed in accordance is at manhole cover that forms not second to iron founding aspect hardness, intensity, the toughness and bearing.
The manufacture method of artificial quartz in lump manhole cover provided by the invention and bearing is compared with castmethod, need not to work under hot environment, need not to consume a large amount of energy, only needs operation at normal temperatures, and labour intensity also reduces greatly.
For increasing the wear resistance of manhole cover upper layer, can add wearing layer 3～5mm at the well lid outside surface, its slurry is formed through stirring by magnesium oxide, magnesium chloride solution, iron oxide black, quartz sand and a small amount of emergy, silicon carbide etc., weight ratio between them is: with magnesian weight is radix, and magnesium chloride solution and magnesian weight ratio are pressed chemical formula 5MgO+MgCL 26H 2O+7H 2O=5Mg (OH) 2MgCL 28H 2Among the O separately the ratio of molecular weight calculate, wherein magnesium oxide calculates with active weight; Weight ratio between magnesium oxide, quartz sand, the iron oxide black is 1: 0.5～1: 0.25～0.35.The mould that wearing layer slurry that stirring is formed and strongthener are put into manhole cover is earlier put into matrix slurry and strongthener again, and other step is constant.The strongthener of putting into wearing layer be grid cloth for well, generally put 2～3 layers and get final product, wearing layer comprises the pattern and the word on well lid surface.
Describe the present invention in detail below by embodiment.
Embodiment 1: the component of artificial quartz in lump manhole cover and bearing is: quartz sand 70～120 orders, and general foundry sand gets final product, and vitriol works's waste residue includes Fe 3O 450% (weight percent, down together), Fe 2O 310%, SiO 240%; In the jointing material, magnesian activity is 70%, and the purity of magnesium chloride hexahydrate is 45%; Strongthener is middle alkali fiber base cloth, grid cloth, land silk and the mixture of silk of operating on; Sanitas neoprene latex pitch prill.Its manufacture method is: the weight ratio of magnesium oxide and magnesium chloride solution is calculated by chemical formula, is radix with active 70% magnesium oxide 100kg, then:
5MgO+MgCL 2·6H 2O+7H 2O＝5Mg(OH) 2·MgCL 2·8H 2O
Molecular weight 200 203 126 529
Substance weight 70kg 71.05kg 44.1kg 185.15kg
In the following formula, magnesium oxide is participated in 70% (being 70kg) that account for of reaction, remainder is a filler, purity is 45% magnesium chloride hexahydrate, 4% sodium-chlor is generally arranged, impurity such as Repone K are not participated in reaction, so actual number is 71.05kg * (1+4%)=73.89kg, the 100kg activity is that 70% magnesium oxide should be joined Klorvess Liquid 73.89kg+44.1kg=117.199kg like this, the weight ratio that is magnesium oxide and magnesium chloride solution is 100kg: 117.99kg=1: 1.1799, for manhole cover, press magnesium oxide: magnesium chloride solution: quartz sand: vitriol works's waste residue=1: 1.1799: 1: 0.5 weight ratio batching, for checking bearing, press magnesium oxide: magnesium chloride solution: quartz sand: vitriol works's waste residue=1: 1.1799: 1.5: 0.5 weight ratio batching, stir through the magnesite product stirrer respectively then and formed manhole cover matrix slurry and bearing matrix slurry in 8～10 minutes, alkali fiber base cloth in again these two kinds of matrix slurries being equipped with, grid cloth, land silk, strongtheners such as the silk of operating on are put into the mould of manhole cover and bearing respectively, keep 20 ℃ ± 3 ℃ of envrionment temperatures, got final product the demoulding in 2～3 hours, under envrionment temperature more than 15 ℃, keep flat maintenance 3～5 days after the demoulding, do rotproofing with the neoprene latex pitch prill during cooling.
Embodiment 2: the wearing layer of doing manhole cover on the basis of embodiment 1, magnesium oxide in the slurry of this wearing layer (active 70%), quartz sand, iron oxide black, magnesium chloride solution were by 1: 0.8: 0.3: 1.1799 batchings, also can add a little emergy or silicon carbide, after stirring, form slurry, earlier the wearing layer slurry is equipped with strongthener such as grid cloth put into manhole cover mould, wearing layer reaches 3～5mm and gets final product, then the matrix slurry is equipped with strongthener and puts into mould, other step is with embodiment 1.
Embodiment 3: on the basis of embodiment 1, change magnesian activity into 60% by 70%, then press the method for embodiment 1, manhole cover matrix wet end furnish is: magnesium oxide: magnesium chloride solution: quartz sand: vitriol works's waste residue=1: 1.0114: 0.8: 0.3, check that bearing matrix wet end furnish is: magnesium oxide: magnesium chloride solution: quartz sand: vitriol works's waste residue=1: 1.0114: 1: 0.5, other step is with embodiment 1.
Embodiment 4: on the basis of embodiment 3, add the wearing layer of doing manhole cover, its wearing layer wet end furnish is: magnesium oxide: magnesium chloride solution: quartz sand: iron black=1: 1.0114: 0.5: 025, and other steps are with embodiment 2.
Embodiment 5: on the basis of embodiment 1, change magnesian activity into 80%, then press the method for embodiment 1, manhole cover matrix wet end furnish is: magnesium oxide: magnesium chloride solution: quartz sand: vitriol works's waste residue=1: 1.3495: 2: 0.5, check that bearing matrix wet end furnish is: magnesium oxide: magnesium chloride solution: quartz sand: vitriol works's waste residue=1: 1.3495: 2: 1, other step is with embodiment 1.
Embodiment 6: on the basis of embodiment 5, add the wearing layer of doing manhole cover, its wearing layer wet end furnish is: magnesium oxide: magnesium chloride solution: quartz sand: iron black=1: 1.3495: 1: 0.35, and other step is with embodiment 2.

Claims (4)

1. artificial quartz in lump manhole cover and bearing, it constitutes the solids of amalgamation body by quartz sand, vitriol works's waste residue, jointing material, strongthener and sanitas, and it is characterized in that: quartz sand is 70～120 orders; Vitriol works's waste residue includes Fe 3O 4Weight percent 45%～55%, Fe 2O 3Weight percent 5%～15%, SiO 2Weight percent 35%～45%; Jointing material is the compound magnesia oxychloride cement of magnesium oxide and magnesium chloride solution, and magnesian activity accounts for weight percent 60%～80%, and the purity of magnesium chloride hexahydrate is more than 45%; Strongthener is middle alkali fiber base cloth, grid cloth, land silk, the silk of operating on; Sanitas is the neoprene latex pitch prill.
2. the manufacture method of described artificial quartz in lump manhole cover of claim 1 and bearing, it comprises: magnesium oxide, magnesium chloride solution, quartz sand and vitriol works's waste residue were formed slurry in 8～10 minutes by stirring, then slurry and strongthener are put into the mould of manhole cover and bearing, keep 20 ℃ ± 3 ℃ of envrionment temperatures, initial set is no earlier than 40 minutes, and final set is not later than 7 hours, with the demoulding in 2～3 hours was good, keep flat maintenance after the demoulding, do rotproofing during cooling, it is characterized in that:
1) magnesium oxide, magnesium chloride solution, quartz sand and vitriol works's waste residue form slurry by following ratio through stirring: with magnesian weight is radix, and magnesium chloride solution and magnesian weight ratio are pressed chemical formula 5MgO+MgCL 26H 2O+7H 2O=5Mg (OH) 2MgCL 28H 2Among the O separately the ratio of molecular weight calculate, wherein magnesium oxide calculates with active weight; For manhole cover, quartz sand and magnesian weight ratio are 0.8～2: 1, and vitriol works's waste residue and magnesian weight ratio are 0.3～0.5: 1; For checking bearing, quartz sand and magnesian weight ratio are 1～2: 1, and vitriol works's waste residue and magnesian weight ratio are 0.5～1: 1;
2) mould of manhole cover and bearing is made by the glass fibre magnesia oxychloride cement;
3) strongthener is middle alkali fiber base cloth, grid cloth, lands silk and operate on silk;
4) keep flat maintenance after the demoulding 3～5 days, keep envrionment temperature more than 15 ℃;
5) rotproofing is handled with the neoprene latex pitch prill.
3. the manufacture method of artificial quartz in lump manhole cover according to claim 2 and bearing, it is characterized in that: said manhole cover surface is added with wearing layer, the component of this wearing layer slurry and weight ratio are: with magnesian weight is radix, and magnesium chloride solution and magnesian weight ratio are pressed chemical formula 5MgO+MgCL 26H 2O+7H 2O=5Mg (OH) 2MgCL 28H 2Among the O separately the ratio of molecular weight calculate, wherein magnesium oxide calculates with active weight; Weight ratio between magnesium oxide, quartz sand, the iron oxide black is 1: 0.5～1: 0.25～0.35.
4. the manufacture method of artificial quartz in lump manhole cover according to claim 3 and bearing is characterized in that said manufacture method also comprises the mould that the slurry and the strongthener of wearing layer are put into manhole cover earlier.
CN96119567A 1996-11-21 1996-11-21 Manhole cover of artificial quartzite and support and their prodn process Pending CN1153754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN96119567A CN1153754A (en) 1996-11-21 1996-11-21 Manhole cover of artificial quartzite and support and their prodn process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN96119567A CN1153754A (en) 1996-11-21 1996-11-21 Manhole cover of artificial quartzite and support and their prodn process

Publications (1)

Publication Number Publication Date
CN1153754A true CN1153754A (en) 1997-07-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1310845C (en) * 2005-02-04 2007-04-18 吕云南 Cast stone manhole cover and its preparation method
CN103951336A (en) * 2014-04-29 2014-07-30 黄俞霖 Road well lid produced by utilizing waste residue and production method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1310845C (en) * 2005-02-04 2007-04-18 吕云南 Cast stone manhole cover and its preparation method
CN103951336A (en) * 2014-04-29 2014-07-30 黄俞霖 Road well lid produced by utilizing waste residue and production method thereof
CN103951336B (en) * 2014-04-29 2016-05-18 黄俞霖 One utilizes waste residue to make manhole and preparation method thereof

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