WO2009146572A1 - 具有类分子筛结构的水泥基渗透结晶型防水材料及其制备方法 - Google Patents

具有类分子筛结构的水泥基渗透结晶型防水材料及其制备方法 Download PDF

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Publication number
WO2009146572A1
WO2009146572A1 PCT/CN2008/000944 CN2008000944W WO2009146572A1 WO 2009146572 A1 WO2009146572 A1 WO 2009146572A1 CN 2008000944 W CN2008000944 W CN 2008000944W WO 2009146572 A1 WO2009146572 A1 WO 2009146572A1
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Prior art keywords
cement
molecular sieve
silica
fineness
auxiliary material
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PCT/CN2008/000944
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English (en)
French (fr)
Inventor
张惠东
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天津新技术产业园区中核防水材料有限公司
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Priority to CN2008800002527A priority Critical patent/CN101720310B/zh
Priority to PCT/CN2008/000944 priority patent/WO2009146572A1/zh
Priority to US12/864,373 priority patent/US7901506B2/en
Publication of WO2009146572A1 publication Critical patent/WO2009146572A1/zh

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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 hydraulic cements other than calcium sulfates
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/06Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C04B40/0641Mechanical separation of ingredients, e.g. accelerator in breakable microcapsules
    • C04B40/065Two or more component mortars
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, i.e. waterproof or water-repellent materials

Definitions

  • the invention belongs to a cement-based waterproof coating material and a preparation method thereof, and particularly relates to a cement-based permeable crystalline waterproof material having a molecular sieve-like structure and a preparation method thereof.
  • Concrete structures should meet safety, suitability and durability requirements. Due to the premature damage of many concrete structures at home and abroad in the increasingly polluted environment, major safety accidents and economic losses have occurred. The durability of concrete structures has become a worldwide problem that plagues civil infrastructure projects. If the problem of durability is neglected, in the near future, maintenance repairs will cost several times the expensive cost of initial investment. Therefore, solving the problem of durability of concrete structures is a major problem that needs to be solved urgently.
  • the present invention has been made to overcome the shortcomings of the prior art, and aims to provide a waterproof and impermeability which has osmotic crystallization characteristics, is resistant to high pressure water heads and has micro-crack water self-repairing function and excellent corrosion resistance.
  • a cement-based permeable crystalline waterproof material having a molecular sieve-like structure and a preparation method thereof.
  • the cement-based permeable crystalline waterproof material with molecular sieve-like structure of the invention comprises: main material Portland cement, auxiliary material I, auxiliary material II and auxiliary material III, and the weight percentage of each component is: main material Portland cement 15 ⁇ 35 %
  • the fineness of each component is:
  • the fineness of silica, calcium oxide, aluminum oxide, ferric oxide, sulfur trioxide and magnesium oxide is 200 to 300 mesh;
  • the fineness of the accelerator is 8mm sieve; the bulk density of calcium formate is 900 ⁇ 1000g/kg; the pH of calcium sulfonate is 9 ⁇ 12; the nominal viscosity of methylcellulose is: 10000 ⁇ 40000 mPa-s .
  • the preparation method of the invention comprises the following steps:
  • the main material Portland cement with fineness meeting the requirements is put into the main silo;
  • the six materials of the excipients with the fineness meeting the requirements are pre-mixed according to the specified weight ratio, and then put into the auxiliary bin;
  • the three materials of the auxiliary material II are pre-mixed according to the weight ratio, fineness and the like specified above, and then put into the auxiliary material bin;
  • the four materials of the excipient III are pre-mixed according to the weight ratio and fineness specified above, and then put into the auxiliary material bin;
  • the main material flows out from the main silo through the vibration of the feeder, and is sent to the impulse flowmeter by the screw conveyor after being sieved by the screening device, and continuously measured and sent to the batch according to the required amount by the impulse flow meter.
  • the auxiliary material is sent to the batching machine through the auxiliary material adding machine;
  • main material and auxiliary materials are disposed in the batching machine, they are sent to the mixer for pre-mixing, and then sent to the micro-mixer for fine mixing, and then the mixed product is sent to the finished product warehouse, and the product is packaged and delivered to the finished product through the packaging machine. Library.
  • the central controller and remote computer monitor and control the preparation process.
  • Waterproof material has osmotic crystallization characteristics, can resist high pressure head and has micro-crack water self-repairing function, and waterproof and impermeability is very prominent;
  • the compressive strength of the waterproof material is up to 30Mpa (according to GB18445).
  • the compressive strength is more than 10% higher than the base block (cement mortar);
  • FIG. 1 is a flow chart showing the process of the preparation process of the present invention
  • a cement-based permeable crystalline waterproof material having a molecular sieve-like structure comprising a main material Portland cement, an auxiliary material I, an auxiliary material II and an auxiliary material III.
  • the excipient I includes silica (Si0 2 ), calcium oxide (CaO), alumina dimethylaluminate (A1 2 0 3 ), ferric oxide (Fe 2 O 3 ), sulfur trioxide (S0 3 ), Magnesium Oxide (MgO);
  • Excipients Oxygenated Acid II includes calcium sulfonate (modified lignin), methyl cellulose and disodium
  • Excipient III includes high-efficiency hardening accelerator, calcium formate, sodium aluminate and silica (Si0 2 ); the weight percentage of each component is:
  • the preferred weight percentage of each component is
  • the fineness of each component is:
  • the fineness of silica, calcium oxide, aluminum oxide, ferric oxide, sulfur trioxide, magnesium oxide and sodium aluminate is 200 to 300 mesh;
  • the fineness of the quick-setting admixture is 8 perforated sieve; the bulk density of calcium formate is 900 ⁇ 1000 g/kg; the pH of calcium sulfonate is 9 ⁇ 12; the nominal viscosity of methyl cellulose is 1000 ⁇ 40000mPa's.
  • the preparation method of the cement-based permeable crystalline waterproof material having the molecular sieve-like structure of the present invention is as shown in FIG. 1 and includes the following steps:
  • the main material Portland cement having a fineness conforming to a specific surface of 300 to 400 n / kg is put into the main silo 1;
  • the three materials of the calcium sulfonate having a pH of 9 to 12, the nominal viscosity of the methyl cellulose of 1000 to 40000 mPa.s and the fineness of the silica of the 200 to 300 mesh of the excipient II are as specified in the above After the weight ratio is pre-mixed, it is put into the auxiliary material bin 6b;
  • a quick setting agent having a fineness of 8 round sieves, a calcium formate having a bulk density of 900 to 1000 g/kg, a sodium aluminate, and an auxiliary material having a fineness of 200 to 300 mesh silica according to the above-mentioned weight of the present invention. After pre-mixing, it is put into the auxiliary bin 6c.
  • the main material vibrates from the main silo 1 through the feeder 2, is sieved by the screening device 3, and then sent from the main material conveyor 4 to the impulse flowmeter 5, and the impulse flowmeter 5
  • the weight ratio set by the above according to the present invention is continuously supplied to the batching machine 9.
  • the excipients I, ⁇ , ⁇ are respectively sent from the silos 6a, 6b, 6c by the decrement weighing devices 7a, 7b, 7c, and are fed to the ingredients by the auxiliary material adding machines 8a, 8b, 8c according to the above-mentioned weight ratio set according to the present invention.
  • the machine 9 is sent to the premixer 10 for premixing of all materials in the batching machine 9, and then the materials are finely mixed by the micromixer 11 to form a finished product, and the finished product is sent to the finished product warehouse 12, and the packaging machine 13 The product is packaged and sent to the finished product library 14.
  • connection method is the pipe connection, which is the flow path of the material, which is indicated by a hollow arrow. ,
  • a negative pressure source 17 is provided for this purpose, and the air suction port F end of the negative pressure source 17 is respectively transported to the main silo 1, the screening device 3, and the main material.
  • the machine 9, the premixer 10, the micromixer 1 1 , the finished product bin 12, the packaging machine 13 and the air outlet F end of the finished product library 14 are connected.
  • the negative pressure source 16 is selected from a centrifugal fan, and the vacuum degree is not lower than -20 mmH 2 O.
  • the exhaust gas treatment device 18 is connected to the negative pressure source 17, and the exhaust gas treatment device 18 is selected from a cyclone separator, and the treated air completely meets the national standard and can be discharged.
  • connection method is a pipe connection, which is a flow path of air, which is indicated by a thick solid arrow.
  • the feeder 2 is a vibrating hopper
  • the screening device 3 adopts a hexagonal drum sieve
  • the main material conveyor 4 adopts a LSS-10 full-face double-screw conveyor
  • the impulse flowmeter 5 adopts an FL-10 impulse flowmeter.
  • the weighing method weighing device (7a, 7b, 7c) is composed of a torque sensor and a vibrating feeder
  • the auxiliary material adding machine (8a, 8b, 8c) adopts a PX dosing machine
  • the batching machine 9 and the premixing machine 10 respectively adopt a full surface.
  • micro mixer 11 consists of LSS-16 paddle screw conveyor and vibration motor
  • center controller 1'5 uses Del l 2900 ⁇ server
  • remote computer 16 uses the Del l XPS 730 computer.
  • the monitoring and control process of the preparation method of the present invention is as follows:
  • the main silo 1 gives the level signal to the central controller 15, and the central controller 15 calculates whether the main silo 1 should be fed.
  • the feeder 2 gives the current working status signal to the central controller 15, and the central controller 15 gives the control working state by calculation and feedback.
  • the screening device 3 outputs the current working state signal to the central controller 15, and the feedback gives the control working state.
  • the main material conveyor 4 outputs to the central controller 15 the current working state signal, and the central controller 15 gives the control working state through calculation and feedback.
  • the impulse flow meter 5 gives the main material flow rate signal to the central controller 15, the central controller 15 calculates the auxiliary material flow rate, and sends the auxiliary material flow rate signal to the decrement method weighing device 7a, 7b, 7c and the auxiliary material adding machine 8a, respectively.
  • the auxiliary material adding machines 8a, 8b, 8c change the rotating speed of the screw conveying machine according to the received auxiliary material flow rate signal, thereby changing the conveying speed, and the auxiliary materials are sent out according to the prescribed amount, and will be executed
  • the result is fed back to the central controller 15, and the decrement weighing devices 7a, 7b, 7c respectively monitor the weight changes of the auxiliary bins 6a, 6b, 6c according to the calculation results of the central controller 15, and transmit the signals to the central controller 15, To adjust the work of the auxiliary bins 6a, 6b, 6c.
  • the remote computer 16 is coupled to the central controller 15 for remote monitoring and control of the process.
  • connection method is an electrical signal connection, which is indicated by a thin solid arrow.
  • the preparation method of the invention realizes the flow rate of the auxiliary control in advance, and ensures the ratio of the product ingredients Description
  • the accuracy, stability and consistency can meet the particle size requirements of various products, so that the production line has the function of one button sequence start, one button sequence stop, and interlocking of various production links. Moreover, it prevents powder leakage and diffusion during material transportation, mixing, packaging, etc., avoids pollution to the surrounding environment, and is environmentally friendly.
  • the powder product prepared by the method of the invention is solidified by a water-cement ratio of 0.3 to 0.4 to form a molecular sieve structure, that is, a porous, gas-permeable and impervious cement-based structure having a pore size of 10 to 20 A and a molecular sieve structure. Infiltrated crystalline waterproof material.

Description

具有类分子筛结构的水泥基渗透结晶型
防水材料及其制备方法
技术领域
本发明属于一种水泥基防水凃层材料及其制备方法,具体涉及一种 具有类分子筛结构的水泥基渗透结晶型防水材料及其制备方法。
背景技术
在建筑工程中, 许多建筑物都有防水渗漏的要求, 如地下设施、 隧 道、 洞库、 桥梁、 海洋工程、 游泳池、 卫生间、 污水处理池和水坝等。
混凝土结构应满足安全性、适用性和耐久性的要求。 由于国内外许 多混凝土结构设施在污染日益严重的环境下出现过早的损坏,因而造成 重大安全事故和经济损失。混凝土结构耐久性已成为困扰土建基础设施 工程的世界性问题。 如果忽视耐久性的问题, 那么在不久的将来, 因维 护维修将付出数倍于初建投资的昂贵代价。 因此, 解决混凝土结构的耐 久性问题是刻不容缓、 亟待解决的重大问题。
目前,为解决此问题尽管有多种材料和工艺可供选择,然而从成本、 功效、研发现状等多种因素综合考虑, 设置混凝土表面防护层是目前防 治混凝土结构劣化、 提高其耐久性的有效、 可行、 根本的措施。 这一措 施的出发点是弥补混凝土的结构缺陷, 将其与外界环境隔离, 有效阻断 水分和有害介质的渗入。通过这种封孔、憎水的表面处理, 达到防止或 减缓外界环境对混凝土结构的侵蚀, 提高耐久性的目的。
而普通混凝土水泥由于脆性大, 防水性能差., 在工程应用中往往不 可避免地产生裂纹, 这种裂纹将导致混凝土水泥密封性下降、渗漏、 影 响工程的使用寿命, 甚至无法正常使用。
发明内容
本发明是为了克服现有技术中存在的缺点而提出的, 目的是提供一 种防水抗渗性能显著、具有渗透结晶特性, 可抵抗高压水头和具有微裂 紋遇水自我修复功能、耐腐蚀性能优异的具有类分子筛结构的水泥基渗 透结晶型防水材料及其制备方法。
本发明的具有类分子筛结构的水泥基渗透结晶型防水材料: 包括 主料硅酸盐水泥、 辅料 I、 辅料 II和辅料 III, 各组分的重量百分比为: 主料 硅酸盐水泥 15〜35 %
辅料 I 说 明 书
二氧化硅 5〜25%
氧化钙 5〜9.2%
氧化铝 20〜30%
三氧化二铁 0.1〜0.4%
三氧化硫 5〜10%
氧化镁 0.2〜0.6%
辅料 II
磺酸钙 0.5〜1.0%
甲基纤维素 0.4〜1.0%
二氧化硅 6〜8%
辅料 III
速凝剂 1〜3%
甲酸钙 0〜1.0%
铝酸钠 1〜5%
二氧化硅 7〜9%
各组分的细度为:
硅酸盐水泥的比表面: 300〜400 m7kg;
二氧化硅、 氧化钙、 氧化铝、 三氧化二铁、 三氧化硫、 氧化镁的细 度均为 200〜300目;
速凝剂的细度为 8mm孔筛; 甲酸钙的堆密度为 900〜1000g/kg; 磺酸钙的酸碱度 pH值为 9〜12;甲基纤维素的公称粘度为: 10000〜 40000 mPa-s。
本发明的制备方法包括以下步骤:
将细度符合要求的主料硅酸盐水泥投入到主料仓中;
将细度符合要求的辅料的六种物料按规定的重量比、进行预混合好 后, 投入到辅料仓中;
将辅料 II的三种物料按上述规定的重量比、 细度等进行预混合好 后, 投入到辅料仓中;
将辅料 III的四种物料按上述规定的重量比、 细度进行预混合好后, 投入到辅料仓中;
主料经喂料机振动从主料仓中流出,经筛分装置筛分处理后由螺旋 输 机送至冲量式流量计,经冲量式流量计计量按要求的量连续送至配 料 说 明 书
用减量法称重装置按规定量调整辅料添加量后,再经由辅料添加机 将辅料送至配料机;
主料及辅料在配料机内配置完成后, 送至混合机内进行预混合, 再 送至微混合机进行细微混合, 后然后将混合后的成品送至成品仓, 经包 装机将产品包装, 送成品库。
中心控制器和远程计算机对制备过程进行监视和控制。
本发明有益的效果:
( a) 防水材料具有渗透结晶特性, 可抵抗高压水头和具有微裂纹 遇水自我修复功能, 防水抗渗性能十分突出;
( b )耐高温低温、 耐酸性气体、 酸性水、 氯盐、 硫酸盐等的耐腐 蚀性能优异;
( c ) 物理性能优异, 防水材料净浆抗压强度高达 30Mpa以上 (按 GB18445 ) 抗压强度比基块 (水泥砂浆) 提高 10%以上;
( d ) 无毒、 无味, 不会造成二次污染, 高稳定性、 长寿命;
( e ) 施工便捷、 性价比高, 可在常温下和潮湿基面上施工, 可刮 涂、刷涂、 喷涂, 施工方法简单, 凝结快, 适合于各种不同的基面(新、 旧基面或形状复杂的基面) 。
附图说明
图 1 是本发明的制备方法流程方框图。
其中:
1 主料仓 2 喂料机
3 筛分装置 4 主料输送机
5 冲量式流量计 6a、 6b、 6c 辅料仓
7a、 7b、 7c 减量法称重装置
8a、 8b、 8c 辅料添加机
9 配料机 10预混合机
11微混合机 12成品仓
13包装机 14成品库
15中心控制器 16远程计算机
17负压源 18尾气处理装置
> 物料线 电信号线
空气线 具体实施方式
以下,参照附图和实施例对本发明的具有类分子筛结构的水泥基渗 透结晶型防水材料及其制备方法进行详细说明:
一种具有类分子筛结构的水泥基渗透结晶型防水材料,包括主料硅 酸盐水泥、辅料 I、辅料 II和辅料 III。其中辅料 I包括二氧化硅(Si02)、 氧化钙 (CaO)、氧化铝速二甲铝 (A1203)、三氧化二铁 (Fe203)、三氧化硫 (S03)、 氧化镁 (MgO) ; 辅料氧凝酸酸 II包括磺酸钙 (改性木质素) 、 甲基纤维素和二 钠 ^化
氧化硅 (Si02) ; 辅料 III包括高效促硬速凝剂、 甲酸钙、 铝酸钠和二氧 化硅 (Si02) ; 各组分的重量百分比为:
主料
硅酸盐水泥 15〜35%
辅料 I
二氧化硅 5〜25%
氧化钙 5〜9.2%
氧化铝 20〜30%
三氧化二铁 0.1〜0.4% 三氧化硫 5〜10%
氧化镁 0.2—0.6% 辅料 II
磺酸钙 0.5〜1. 0% 甲基纤维素 0.4〜1.0% 二氧化硅 6〜8%
辅料 m
1〜3%
0〜1.0%
卜 5%
娃 7〜9%
各组分的较佳重量百分比为
主料
硅酸盐水泥 22〜30%
辅料 I
二氧化硅 12〜15.6% 氧化钙 6.5~8 氧化铝 22.8—25%
三氧化二铁 0.2〜0.3%
三氧化硫 6.8—8%
氧化镁 0.3〜0.5%
辅料 II
铝速二磺甲酸钙 0.6〜0.75%
甲氧酸凝酸基纤维素 0.6—0.9%
化钠剂
二氧化硅 6〜8%
辅料 III
1.5〜2.6%
0.3〜0.6%
2~4%
硅 7〜9%
各组分的细度为:
硅酸盐水泥的比表面: 300〜400 n /kg;
二氧化硅、 氧化钙、 氧化铝、 三氧化二铁、 三氧化硫、 氧化镁、 铝 酸钠的细度均为 200〜300目;
速凝剂的细度为 8酬孔筛; 甲酸钙的堆密度为 900〜1000 g/kg; 磺酸钙的酸碱度 pH 值为 9〜12; 甲基纤维素的公称粘度为: 1000〜40000mPa's。
实施例如下表: 序 添加量 (重量%)
类别 名称
号 实施例 1 实施例 2 实施例 3
1 水泥 硅酸盐水泥 22 25 30
2 Si02 15.6 30 12
3 CaO 6.5 7.1 8
4 辅料 A1203 25 22.8 21
5 ( I ) Fe203 0.3 0.25 0.2
6 S03 6.8 7.5 8
7 MgO 0.3 0.4 0.5
8 辅料 磺酸钙 0.7 0.75 0.6
9 (II) 甲基纤维素 0.6 0.7 0.9 10 Si02 7 7 7
11 速凝剂 2. 6 2 1. 5
12 辅料 甲酸钙 0. 6 0. 5 0. 3
13 ( III) 铝酸钠 4 3 2
14 Si02 8 8 8 本发明的具有类分子筛结构的水泥基渗透结晶型防水材料的制备 方法如图 1所示, 包括以下步骤:
将细度符合比表面为 300〜400 n /kg的主料硅酸盐水泥投入到主 料仓 1中;
将细度符合 200〜300目的辅料 I的六种物料 (Si02、 Ca0、 A1203、 Fe203、 S03、 MgO) 按照本发明上述规定的重量比、 进行预混合好后, 投 入到辅料仓 6a中;
将磺酸钙的酸碱度 pH 值为 9〜12、 甲基纤维素的公称粘度为 1000〜40000mPa.s和细度符合 200〜300目的二氧化硅的辅料 II的三种 物料按照本发明上述规定的重量比进行预混合好后, 投入^辅料仓 6b 中;
将细度为 8圆孔筛的速凝剂、堆密度为 900〜1000 g/kg的甲酸钙、 铝酸钠和细度符合 200〜300 目的二氧化硅的辅料 ΠΙ按照本发明上述规 定的重量比进行预混合好后, 投入到辅料仓 6c中。
接通电源后, 主料经喂料机 2振动从主料仓 1中流出, 经筛分装置 3筛分处理后由主料输送机 4送至冲量式流量计 5, 经冲量式流量计 5 按照本发明上述设定的重量比连续送至配料机 9。
辅料 I、 Π、 ΠΙ分别由料仓 6a、 6b、 6c中经减量法称重装置 7a、 7b、 7c, 按照本发明上述设定的重量比由辅料添加机 8a、 8b、 8c送至 配料机 9, 在配料机 9中配料完成后再送至预混合机 10进行全部物料 的预混合, 然后物料经微混合机 11进行细微混合制成成品, 成品送至 成品仓 12, 经包装机 13将产品进行包装, 送成品库 14。
以上的连接方式为管道连接, 是物料的流径通道, 图中用空心箭头 表示。 、
为了防止粉尘泄漏和扩散, 使整个系统在负压状态下工作, 为此设 置负压源 17, 负压源 17的空气吸入口 F端分别与主料仓 1、 筛分装置 3、 主料输送机 4、 冲量式流量计 5、 辅料添加机 (8a、 8b、 8c) 、 配料 说 明 书
机 9、 预混合机 10、 微混合机 1 1、 成品仓 12、 包装机 13和成品库 14 的空气排出口 F端连接。 其中负压源 16选用离心风机, 真空度不低于 -20mmH2O即可。尾气处理装置 18与负压源 17连接,尾气处理装置 18 选用旋风分离器, 经处理后的空气完全达到国家标准, 可以排放。
以上的连接方式为管道连接, 是空气的流径通道, 图中用粗实心箭 头表示。
其中喂料机 2为振动料斗, 筛分装置 3采用六棱滚桶筛, 主料输送 机 4采用 LSS-10满面式双螺旋输送机, 冲量式流量计 5采用 FL-10冲 量式流量计, 减量法称重装置(7a、 7b、 7c ) 由扭力传感器和振动喂料 器组成, 辅料添加机 (8a、 8b、 8c ) 采用 PX定量添加机, 配料机 9和 预混合机 10分别采用满面式双螺旋输送机和 LSS- 16桨叶式螺旋输送 机, 微混合机 11由 LSS-16浆叶式螺旋输送机和振动电机组成, 中心控 制器 1'5采用 Del l 2900 ΙΠ 服务器, 远程计算机 16采用 Del l XPS 730 计算机。
本发明的制备方法的监视和控制过程如下:
主料仓 1给出料位信号送至中心控制器 15, 中心控制器 15计算出 是否应给主料仓 1供料。喂料机 2给出目前的工作状态信号送至中心控 制器 15, 中心控制器 15通过计算、 反馈给出控制工作状态。 筛分装置 3输出给中心控制器 15目前的工作状态信号, 反馈给出控制工作状态。 主料输送机 4输出给中心控制器 15 目前的工作状态信号, 中心控制器 15通过计算、 反馈给出控制工作状态。
冲量式流量计 5给出主料流量信号送至中心控制器 15, 中心控制 器 15计算出辅料流量, 将辅料流量信号分别送至减量法称重装置 7a、 7b、 7c和辅料添加机 8a、 8b、 8c , 辅料添加机 8a、 8b、 8c根据收到的 辅料流量信号, 通过改变变频器电源频率来改变螺旋输送机械的转速, 从而改变输送量, 将辅料按规定量送出, 并将执行结果反馈给中心控制 器 15, 减量法称重装置 7a、 7b、 7c 根据中心控制器 15的计算结果分 别监测辅料仓 6a、 6b、 6c 的重量变化, 并将信号传给中心控制器 15, 以调整辅料仓 6a、 6b、 6c的工作。
远程计算机 16与中心控制器 15连接,对工艺过程进行远距离监视 和控制。
以上的连接方式为电信号连接, 图中用细实心箭头表示。
本发明的制备方法实现了超前控制辅料流量,保证了产品配料配比 说 明 书
的准确性、稳定性和一致性,能够满足各种不同用途产品对粒度的需求, 使生产线具有一钮顺序启动、 一钮顺序停车, 各生产环节联锁的功能。 而且防止了在物料输送、 混合、 包装等过程中发生粉末泄漏和扩散, 避 免了对周围环境污染, 有利环保。
利用本发明的方法制备的粉料产品以水灰比为 0.3〜0.4 制成浆液 固化后, 生成类分子筛结构, 即: 形成孔径 10〜20A 的多孔性、 类似 分子筛结构的透气不透水的水泥基渗透结晶型防水材料。

Claims

1、 一种具有类分子筛结构的水泥基渗透结晶型防水材料, 其特征在 于: 包括主料硅酸盐水泥、 辅料 I 辅料 II和辅料 πι, 各组分的重量百分 比为:
主料 硅酸盐水泥 15〜35%
辅料 I
二氧化硅 5—25%
氧化钙 5〜9.2%
氧化铝 20〜30%
三氧化二铁 0.卜 0.4%
三氧化硫 5〜10%
氧化镁 0.2〜0.6%
辅料 II
磺酸钙 0.5〜1.0%
甲基纤维素 0.4〜1.0%
二氧化硅 6〜8%
辅料 m
速凝剂 卜 3%
甲酸钙 0〜1.0%
铝酸钠 1〜5%
二氧化硅 7〜9%
2、 根据权利要求 1所述的具有类分子筛结构的水泥基渗透结晶型防水 材料, 其特征在于: 各组分的较佳重量百分比为:
主料 硅酸盐水泥 22〜30%
辅料 I
二氧化硅 12〜15.6%
氧化钙 6.5—8%
氧化铝 22.8〜25%
三氧化二铁 0.2〜0.3%
三氧化硫 6.8〜8%
氧化镁 0.3〜0.5%
辅料 II
磺酸钙 0.6〜0.75% 权 利 要 求 书
甲基纤维素 0.6〜0.9%
二氧化硅
辅料 III
速凝剂 1.5〜2.6%
甲酸钙 0.3〜0.6%
铝酸钠
二氧化硅
Figure imgf000012_0001
3、 根据权利要求 1所述的具有类分子筛结构的水泥基渗透结晶型防水 材料, 其特征在于: 以下组分的细度为:
硅酸盐水泥的比表面: 300〜400 m7kg;
二氧化硅、 氧化钙、 氧化铝、 三氧化二铁、 三氧化硫、 氧化镁的细度 均为 200〜300目;
速凝剂的细度为 8誦孔筛; 甲酸钙的堆密度为 900〜1000 g/kgo
4、 根据权利要求 1所述的具有类分子筛结构的水泥基渗透结晶型防水 材料, 其特征在于: 磺酸钙的酸碱度 PH值为 9〜12; 甲基纤维素的公称粘 度为 10000〜50000mPa-s。
5、 一种具有类分子筛结构的水泥基渗透结晶型防水材料的制备方法, 其特征在于: 包括以下步骤:
将细度符合要求的主料硅酸盐水泥投入到主料仓 (1) 中;
将细度符合要求的辅料 I的六种物料按上述规定的重量比、 进行预混 合好后, 投入到辅料仓 (6a) 中;
将辅料 II的三种物料按上述规定的重量比、 细度等进行预混合好后, 投入到辅料仓 (6b) 中;
将辅料 III的四种物料按上述规定的重量比、 细度进行预混合好后, 投 入到辅料仓 (6c) 中;
主料经喂料机 (2) 振动从主料仓 (1) 中流出, 经筛分装置 (3) 筛分 处理后由螺旋输送机 (4) 送至冲量式流量计 (5) , 经冲量式流量计 (5) 计量按要求的量连续送至配料机 (9) ;
用减量法称重装置 (7a、 7b、 7c) 按规定量调整辅料添加量后, 再经 由辅料添加机 (8a、 8b、 8c) 将辅料送至配料机 (9) ;
主料及辅料在配料机(9) 内配置完成后, 送至预混合机(10) 内混合, 再送至微混合机 (11) 进行细微混合;
中心控制器 (15) 和远程计算机 (16) 对制备过程进行监视和控制。
PCT/CN2008/000944 2008-06-02 2008-06-02 具有类分子筛结构的水泥基渗透结晶型防水材料及其制备方法 WO2009146572A1 (zh)

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