1 产品性能（ Product performance）
高效泥岩分散剂是一种强效型粘泥分散剂，具有很强的分散性和渗透性。对盾构泥岩渗透性强，能够迅速分解剥离泥岩。也能够有效解决石油钻探和地质钻探中遇到的黏泥、油泥裹钻问题，具体方式原理为通过分解剥离作用，直接、快速地渗透到粘土胶层结构中，将粘土氧化分解，逐渐脱落剥离，随水流出。
High efficiency mudstone dispersant is a kind of highly effective clay dispersant with strong dispersibility and permeability. It has strong permeability to shield mudstone and can quickly decompose and peel mudstone. Also can effectively solve the oil drilling and geological drilling encountered slime, mud wrapped drilling problem, the specific way principle is through decomposition stripping action, directly, quickly permeate into the clay layer structure, the clay oxidation decomposition, gradually off stripping, with water flow out.
2 产品用途（Product uses:）
高效泥岩分散剂适用于盾构隧道、钻探勘探、电站和炼油厂等部门，解决由于隧道系统和循环管道系统中泥浆沉积，消除形成大量的泥浆凝胶沉积和堵塞。
Efficient mudstone dispersant is mainly suitable for shield tunneling, drilling and prospecting, power stations and oil refineries and other departments, due to the tunneling system and circulation pipeline system by mud mud deposition, the formation of a large number of mud gel deposition, blocking.
3 技术指标
项目Item | 指标Index |
外观 Appearanc | 淡黄色液体 light yellow |
气味 Smel | 无明显气味 No obvious smel |
PH | 6.0-8.0 |
4 方法和效果（Method and performance）
首先将高粘性土分散剂按照分散剂：水=1:1的比例在搅拌条件下配制成分散剂溶液，搅拌时间大于5min即可使用。其次，将配置好分散剂溶液分次注入已经结泥饼的土仓中，首次注入量为3t，然后每隔半小时转动一次刀盘以利于分散剂和土体的充分混合。8h后每隔2h注入0.5t分散剂溶液，直至注完为止。24~48h后，开始慢慢推进，将土仓渣土慢慢排出即可。分散剂也可用于预防盾构刀盘和土压力仓的结饼，使用方法为将分散剂配制成20%的溶液，然后在推进过程中连续注入土仓即可。
First of all, the dispersant of high cohesive soil was prepared according to the ratio of dispersant: water =1:1 under the condition of agitation, and the agitation time was more than 5min before use.Pour the dispersant solution into the soil chamber with mud cake in batches. The first injection volume is 3T, and then turn the knife plate every half an hour to facilitate the full mixing of dispersant and soil. After 8h, 0.5t dispersant solution was injected every 2h until the injection was finished.24~48h later, start to slowly advance, the soil bin slowly discharge can be.Dispersants can also be used to prevent cake formation in shield cutters and earth pressure chambers by compounding dispersants into a 20% solution and continuously injecting them into the earth chamber during propulsive.
5 安全性能（Safety performance）
不同配比的高效泥岩分散剂（ZKY-202）与钢筋不反应；
不同配比的高效泥岩分散剂（ZKY-202）与混凝土不反应；
不同配比的（ZKY-202）泥岩分散剂与橡胶不反应。
The highly effective mudstone dispersant (ZKY-202) with different proportions did not react with steel bars.
The highly effective mudstone dispersant (ZKY-202) with different proportions did not react with concrete.
The dispersant of mudstone with different proportions (ZKY-202) did not react with rubber.
Zhongke Changqing ZKY-202, anti-clay polymer for earth pressure balance Tunnel Boring Machines (TBM)
Product description |
Zhongke Changqing ZKY-202 is the latest generation of anti-clay additives for tunnel boring machines. It is a liquid polymer, specially designed for clayey soils with high clogging and adhesion. It is manufactured from natural, renewable resources and presents a milestone in terms of environmental compatibility.
Fields of application |
ZKY-202 can be used with the standard foam generators installed on EPB machines. It can be injected at the cutter-head, into the working chamber and screw conveyor.
Features and benefits |
² Reduction of clogging and adhesion effects on the cutter-head.
² Creation of a plastic soil material which can be easily excavated and transported.
² Avoiding re-agglomeration of clay particles.
² Reduction of cutter-head torque.
² Enhance in TBM Speed.
Packaging |
ZKY-202 is packed in IBCs (1075 kg - slight variations depending on region).
Technical data (typical properties) | ||
Form | Liquid | |
Colour | Dark brown | |
Density (20°C, g/cm³) | 1.01 ± 0.03 | |
Viscosity (20°C, Brookfield Sp.00) | < 150 mPa.s | |
pH (10% solution, 20 °C) | 6.0 ± 1 | |
Application procedure |
ZKY-202 is used as an aqueous solution with typically 10-20% concentration. Injected by a foam generator, the typical foam expansion ratio (FER) varies between 6 and 18, and the foam injection ratio (FIR) between 25 and 75. If the consistency of the muck needs to be reduced, high-efficiency foam agents can be used in combination with ZKY-202. For the first use and combination with other soil conditioning agents, please keep in touch with our engineers.
Dosing system |
ZKY-202 can be used with standard TBM dosing and foaming equipment.
Handling |
Do not mix pure ZKY-202 with any other pure soil conditioning additives as this may cause immediate gel formation. If several foaming products or polymers are used, it is preferable to reserve a specific transfer or dosing pump for ZKY-202. If a transfer or dosing pump is being used for more than one product, the pump should be cleaned with water before switching to other products.
Storage |
It should be stored between 5℃and 40℃. If stored in original tightly closed containers, it will have a shelf life of 12 months. Do not allow the product to freeze. Please consult our engineers prior to the use of any product that has become frozen.
Safety precautions |
Standard precautions for handling chemical products should be observed: avoid eye and skin contact and wear rubber gloves and safety glasses. If contact occurs, rinse with plenty of water. In case of eye contact seek medical advice.
Note: The information given here is true, represents our best knowledge and is based not only on laboratory work but also on field experience. However, because of numerous factors affecting results, we offer this information without guarantee and no patent liability is assumed. For additional information or questions, please contact our technical engineer.
Wuhan zhongke changqing shield technology co., LTD
No.4 nanhu village, hongshan district, wuhan city, China
Tel: +86-15347058574
Fax: +86-027-8763881
Mail: zkcq-wh@gmail.com