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公司新聞
Concrete mixing vessel in the water-based Construction Project
Time:
2010/2/1
In recent years, with the national infrastructure, expanding the scale of construction is becoming more mechanized, the construction site are varied, such as the harnessing of rivers, construction of bridges, harbor construction, expanding the scale of buildings, construction sites continued by land-based to the offshore extension, making the concrete pouring in the water usage greatly increased. This water the rapid development of construction technology, thus the traditional challenges posed by concrete mixing equipment. Conventional concrete mixing plant concrete mixing equipment is usually installed in the offshore land, mixing a good concrete mixing truck through the pier will be repaired along the pre-construction of concrete delivered to the vicinity, and then through the concrete pump transported to the designated construction site. Due to the existence of mobility in the transport is poor, inconvenient transportation problems and therefore, the market needs a higher mobility, low-priced products concrete mixer, water mixing station and the mixing vessel came into being, the product is a set of ten Fangyuan Group R & D concrete mixing station self-developed technology and experience developed to meet the needs of the market.
Concrete mixing technology from abroad only in Europe and the Americas, more technologically advanced, but because of similar products abroad, higher prices in recent years, more difficult to enter the Chinese market, in this context, we have a need to expand the production of water with the mixing station ( including the platform and the mixing vessel), to increase our market share.
A mixing vessel basic structure:
STC150 cement concrete mixing ship all-steel structure, steel structure and the main piece, the production line symmetrical layout; the mixing machine structure can be divided into: mixing the main building unit, aggregate batching unit, aggregate transport unit, powder supply system, water supply system, liquid additive system, pneumatic system, control system composed of independent modules of the system (see Figure 1).
2 engineering features and installation difficulties:
(1) Su-Tong Bridge length of 20 kilometers, is located between Suzhou and Nantong, across the Yangtze River, due to ocean climate, Yangtze River Division (ie, the location of Su-Tong Bridge) of water per day all up with the sea, tide, water level changes of up to approximately 5m.
(2) Su-Tong Bridge in the pile-bit because of its construction projects are unique, with the construction of a short production cycle, production efficiency and quality characteristics of high and piles do not need a cast is completed, so the whole production of concrete to be made pipeline operations production requirements.
(3) Concrete stations to be installed in a length 70.2m, width 19.6m hull above the deck of the ship itself, curved surface, but the hull was 1:18 before the launching point of view, and concrete construction of stations at the same time there are hull welding , marine electrical appliances, and other ancillary equipment, professional construction teams alternately in the same area of construction, so that the whole construction site in a complex environment, increased the difficulty of construction.
Three key technical issues:
(1) Multi-Subject technical interfaces and technical coordination issues;
(2) Electrical Control System and software systems;
(3) multi-faceted to eliminate the impact of wind and enhance the stability of the overall structure;
(4) Water balance, cement scales, scales admixture, fly ash weighing, measuring stability of the system design;
(5) The generous amount of aggregate storage hopper designed to meet the operational needs;
(6) Increase moisture measures to reduce seawater corrosion.
