Two Phase MRT Tunnel Projects Sludge Dewatering Centrifuge

Two Phase MRT Tunnel Projects Sludge Dewatering Centrifuge

Decanter Centrifuge Applies in MRT/Tunnel Projects

Shield construction technology is the cutting-edge technology in non-excavation mode. It is a fully mechanized construction method in the construction of undercut method. It promotes the shield mechanism in the ground and supports the surrounding rock through the shield shell and the segment.

The collapse occurred in the tunnel, and the soil excavation was carried out with the cutting device in front of the excavation face. The excavated machinery was transported out of the hole, and the jack was pressed and pushed in the rear part, and the precast concrete segments were assembled to form a tunnel structure.

Two-phase centrifuge model and technical parameters

The length dimension varies with motor power.

The circulation of muddy water between the shield machine and the mud water treatment system is realized by the mud water transportation system. The soil sand excavated by the shield machine enters the cutting chamber, and the high density mud water after the agitation is pumped by the mud water pump to the shield mud water treatment. The system is pumped back to the excavation surface after being processed by the mud treatment system, and thus circulated. The mud treatment system in the shield construction field is an important guarantee for the normal tunneling of the shield machine. The treatment system must be foolproof in the construction of the shield and be 100% reliable.

The special purification system for shield mud developed by ZK Separation is designed and composed of mud tank, transfer pump, vibrating screen, sand removal and desilting device, centrifuge and other equipment. The system has high degree of automation, small floor space and high purification efficiency.

General Description of Waste Water Treatment Centrifuge

For water purification plants, sewage treatment plants, high-performance water treatment dedicated decanter centrifuge is an ideal solution; it highly adapts to the sludge features, but also has a greater process capacity to handle at low concentrations (SS 0.5 %) case without thickener / concentrator to meet the process aim of concentration and dewatering.

Featurers:

1. Water content in dewatered solids: 65%-81%

2. Solids content in liquid after separation: lower than 0.05~0.2%

3. Solids recycle rate: no less than 85%~98%

4. Chemical consumption per ton dry solids: 1~5kg/TDS

With the XBSY/WP decanter centrifuges, two liquids with different specific gravities can be individually separated from solids.

Solid-liquids are separated in the liquid phase zone and are decanted and discharged from the Solid bowl to prevent cross contamination. There is generally is discharged under pressure and which by big gravity . The adjustment during the operation of the centrifuge ensures maximum purity of both liquid phases, thus often removing the additional downstream separation machine.

Chengdu ZK Separation Technology Co., Ltd. is a specialized solid-liquid separation equipment company established by Chengdu West Petroleum Equipment Co., Ltd. according to the development needs. Relying on the technical experience of long-term infiltration and accumulation in many fields including petroleum, chemical engineering, tunnel engineering, sewage treatment, mining equipment, etc., we have developed the high-efficiency sewage concentration and dehydration treatment series centrifuge, alcohol production line alcohol stillage treatment series centrifuge, crude oil and kitchen waste harmless and resource-oriented treatment series three-phase centrifuge, medical extract treatment three-phase centrifuge, SOR three-phase sludge separation system, TDU waste sludge thermal desorption treatment system and other multi-field products and their complete sets of technology, and possess a number of inventions, utility models and appearance patents.

ZK Separation always attaches much importance to the cultivation of talents in the chemical engineering and water treatment industries, and connects the frontier technologies such as mechanical analysis, materials science, fluid mechanics, aerodynamics, vibration isolation technology, automatic control technology, and sensor technology with the centrifuge industry. We have the teams of product R&D and manufacturing process engineers who have been working in the key enterprises of separation machinery industry for many years. On the basis of absorbing domestic and foreign advanced technology, and combined with the special features of production technology in various domestic application industries, we pay much attention to the industrial segmentation. We specialize in the design of petroleum, chemical engineering, coal chemical industry, steel, food, resin, fermentation, medicine, excess sludge of water supply and drainage, etc., completing the R&D, manufacturing and sales of dozens of products and auxiliary equipment including the solid-liquid two-phase, liquid-liquid-solid, solid-liquid-solid three-phase with different parameters explosion-proof centrifuge with flammable and explosive liquids as medium and the online real-time centrifuge with adjustable liquid layer. We have various unique techniques such as high-efficiency sewage concentration, dehydration treatment, three-phase separation of crude oil, kitchen waste, sludge and medical extract, wear-resistant energy-saving, explosion-proof sealing and interlock control. Our centrifuge has distinctive advantages including small covering area, simple process pipeline; high degree of automation; high safety protection measures; good on-site operating environment; strong material adaptability; and stable and reliable operation.

Our Company has research facilities and testing benches with complete performance and intact data collection, and the professional production equipment and testing instruments ensure the high-volume, high-quality manufacturing capabilities.

Over the years, our Company has been focusing on the acquisition of advanced equipment and the development of new technology. We have purchased advanced machining equipment from Germany, the United States, Japan and other countries. At present, we own more than 200 various modern processing equipment including processing centers of each link, CNC gantry milling, laser cutting machine, large-scale lathe, boring mill, high-precision grinding machine, plate shearing machine, bending machine, sand blasting and painting equipment, etc.