The role of cyclone in shield mud-water separation system

The muddy water pressure shield is to set a partition behind the mechanical shield large cutter, and the mud and water chamber between the partition and the cutter head is filled with pressurized mud water in the excavation surface and the mud water chamber, and the pressure is ensured. The stability of the excavation surface soil. When the shield is propelled, the excavated soil enters the mud water chamber and is stirred by the stirring device. The stirred high-concentration mud water is sent out to the ground by the fluid conveying system, and the sent muddy water is separated by water and soil, and then the separated muddy water is sent again. The mud water chamber is continuously recycled, and all its projects are managed by the central console, which can realize construction automation. It is suitable for flooded strata mainly composed of sandy soil, and is also suitable for impact strata mainly composed of cohesive soil, but the mud water treatment cost is high. Mud purification system can reuse the washing mud after returning to the ground to separate the geotechnical debris carried therein.

The mud purification system - lzzgmachine

The mud purification system

The mud water treatment system has the following effects:

1. Quickly separate the mixed mud formed by the cutting machine cutter to cut the soil sand, and then recycle the recovered mud;
2, timely provide the mud required for excavation construction to the excavation face sealing cabin, the specific gravity of the mud sent to the excavation surface, viscosity and other technical indicators must meet the requirements of forming mud film and stable excavation surface in the soil layer.

Structure of the swirling separation system

The cyclone separation system is mainly composed of a cyclone desilter and a cyclone desilter. Firstly, it is separated by a drilling fluid vibrating screen. The separated granular mud is then refined by a cyclone to treat different diameters of mud particles. Achieve better control of the solid phase.

Hydrocyclone is a high efficiency separation equipment


How the cyclone works

Under the pressure of muddy water, it enters the cyclone separation system through the pipeline at high speed, and makes a swirling motion in the cylindrical wall shell of the cyclone. The coarse particles are thrown to the wall and gradually move downward under the action of gravity. The bottom is discharged. The fine particles move to the wall at a lower speed, and are discharged by the central flowing liquid from the upper central overflow pipe to make the mud coarsely subdivided.

Related Articles

Necessity of river dredging

Mud purification system for river dredging

Necessity of river dredging In recent years, many rivers have experienced serious siltation, and river siltation has increasingly affected the normal functions of flood control, drainage, irrigation, water supply, navigation, etc., and also has a tremendous destructive effect on the ecological function of the river. In order to restore the normal function of the river, promote the rapid and sustainable development of the economy and society, carry out dredging and dredging projects in the river. The river channel will be deepened and widened through treatment, the river will become clear, and the production conditions and living environment of the masses will be significantly improved, achieving the goal of “shuiqing, river smooth, shore green, and beautiful scenery”. Mud purification system is necessary for river dredging. Reasons for the rise of the riverbed 1. Sandy soil, when the water content is high,…

mud purification system

the amount of sand after the piling mud is treated by the mud purification system

The use of mud treatment equipment in the rotary drilling, continuous wall grab and circulation drilling construction can realize the recycling of construction mud, saving the cost of pulping and the transportation processing cost of waste slurry. The recyclable pulp purified by the mud treatment equipment has a sand content of <3%, which can ensure the use of mud for clearing, pouring and retaining walls under the above construction work conditions. As a kind of pile Kiev machine, the mud treatment equipment for pile foundation construction can fully purify the traditional construction waste slurry to meet the quality control requirements of pile construction. The advantage of full purification is the soil residue. The effective separation of sand, stone and mud agglomerates makes it beneficial to improve the efficiency of pore making, reduce the requirements for bentonite and other components, help…

Use vibrating screen with cyclone to improve the sand recovery

LZZG designed vibrating screen with cyclone, to reduce the waste of sand resource in the sand washing process. The vibrating screen is a filter mechanical separation device for the solid phase treatment of mud, consisting of a screen and a vibrator. Widely used in coal and other industries for grading, washing, and dewatering of materials. The vibrating screen or dewatering screen uses vibration motor excitation as the vibration source so that the material is thrown up on the screen and moves forward in a straight line. The material enters the feeding port of the screening machine evenly from the feeder, and several specifications are produced through the multi-layer screen. The sieve and the sieve are discharged from the respective outlets. Linear vibrating screen (straight screen) has the advantages of stable and reliable, low consumption, low noise, long life, stable vibration shape, and high…

Reasons and solutions for the breakage of the vibrating screen

The more likely the linear vibrating screen is to appear in various faults during operation, the cracking of the screen plate and the breakage of the beam after the vibrating screen has been used for a long time, it is necessary to find the "cause" of the problem. During the use of the vibrating screen, the correctness of the operation method and the importance of regular cleaning and maintenance usually avoid the occurrence of the vibration screen failure frequency. Vibrating screens are designed to bring efficient results to the production process. The selection of the material of the vibrating screen itself; the calculation of the vibrating motor; the selection of the screen; whether the structural design of the fuselage conforms to the work on site, can select high-quality screening equipment with high efficiency and precision. So find out the cause…


First Rate Service
Product Knowledge
Service Network
Privacy Policy
Spare Parts