Wet feeding mixing system(WFMS) also called in situ soil stabilization system, this device should be used on soft dry or not too wet ground layer, this type use WET binder that always consist of a proportional cement, lime, fly ash, water and so on, WFMS equipment can mix them according to the pre-setting proportion, then feed to excavator mounted mixing head, The Mixing Head(MH) will mix the soil and wet binder together, 4~5 hours later the soft soil will be stabilized.
Selection and proportioning of soil binder (agent) for soft soil and sludge
The key of in situ remediation of soft soil or sludge is the choice and proportion of soil binder (agent), different sludge has different characteristics and the purpose of resource utilization. And there are different kinds of pollutants, heavy metals and curing time in sludge, so the requirements for soil binder (agent) are also different. Therefore, the technical scheme for the preparation of sludge binder (agent) is determined according to the specific requirements of the soil stability construction company. However, the basic requirements are that the curing speed is fast, the compressive strength is large after soil mixing remediation, the curing is stable, the effects of internal and surface curing were consistent, little amount added and low economic cost and so on.
For the selection and ratio of soil binder (agent) for in situ remediation, you can start with a small scale of soil sampling test, such as 1~10 cubic soil stirred with common soil binder (agent), acceptance check within 3~5 days, after several experiments to determine the optimum type and proportion of soil binder (agent). For the in situ remediation company of rich construction experience and qualifications, can also to do the selection and matching in accordance with their experience, but the premise is to ensure that the quality of in situ soil remediation can meet the requirements.
Selection and purchase of devices
After a preliminary investigation of the site, the soil moisture content is determined, for dry soil which moisture content less than 100%, it is recommended to choose WFMS equipment, which is wet feeding mixing system.
For soil which moisture content greater than 100%, such as riverbed, swamp and sludge that is immersed in water, it is recommended to choose DFMS in situ soil mixing equipment, which is dry feeding mixing system.
WFMS Technical Specification
|Model||Power||Sludge Pump||Voltage||Weight||Max Transmit Distance|
|WFMS||120kw||250 L/min||380v||8 ton||500m|
Mixing Head Technical Specification
|Model||Excavator Type||Work Pressure||Speed||Power|
Step.1 Storage tank
Import the materials of soil binder (agent) for in situ remediation into the storage tank through the fly ash truck, common raw materials such as cement, lime.
Connected to the mix control and feeding system through pipeline.
Step.2 Mix control and feeding system
Stir the raw material of soil binder (agent) fed by the storage tank.
Can stir 200~300 kg per minute.
The power of the soil mixing remediation station is 120W and the voltage is 110V~380V (for different voltages in different countries).
The remaining volume of the storage tank, the stirring speed of the soil mixing remediation station, the mixing state of the soil binder (agent) and the mixing ratio of the raw material can be monitored and controlled in real time through the LED display and intelligent operation interface.
Step.3 Mixing head and excavator
By the mix control and feeding system, after the soil binder (agent) for in situ soil remediation is fully mixed, connect to the mixing head on the excavator through the pipeline, constantly rotating in high speed stirring soil while through the hole on the mixing head to mix the soil with soil binder (agent). A few hours later, the soil solidified and bearing capacity are greatly improved, which lays a solid foundation for subsequent construction.
PARFECT WET FEED MIXING SYSTEM apply in sludge stabilization project
Excavator mounted soil mixer demo of PARFECT wet feeding cement soil stabilization system