With the vigorous development of China's construction industry, commercial concrete mixing stations have become popular in prefecture-level cities in coastal areas, and small and medium-sized commercial concrete mixing stations have appeared in county (city) cities. Based on the experience of Huazhong Construction Machinery technicians in product design, on-site installation, commissioning and testing of commercial concrete mixing plants, the technical problems of the preparation and construction of the mixing plant are analyzed in order to be carried out with relevant technical personnel in the same industry. Explore and communicate.
1. Determination of the scale of the mixing station
Before the investor determines the scale of the investment, it is natural for the investor to do a good job in market research. If it is used internally by the construction department, the production capacity of the mixing station to be purchased should be determined according to the building construction capacity and the amount of commercial concrete used.
2. Determination of the grade of the mixing station
Investors should fully understand the product quality level, service capability and price information of construction manufacturers in the same industry at home and abroad, conduct market research, and inspect the manufacturer's processing and quality assurance capabilities on site. The manufacturer of the complete set of equipment and the product suitable for the demand can be selected by holding a defense meeting, a bidding meeting, and the like. According to the possession of funds, determine the scale and grade of commercial concrete mixing plant. If the investment scale is small, it is possible to use a mixing station that is all domestically produced parts and a host with a lower cost. If the investment scale is large, some key components can be specified, such as the products of the Toledo company for the specified sensors; the components of the screw conveyor, the whole machine dust collector and the cement chamber dust collector are made of the American Weim products; The company's products, etc., can improve the reliability and service life of the mixing station, improve the grade of the mixing station, and thus improve economic efficiency.
The electrical control system is also an important factor in determining the grade of the mixing station. Manufacturers have different levels of control systems for customers to choose from.
3. Selection of mixing station site
When selecting the site, ensure that the site is close to the stone yard and the sand plant, ensuring sufficient water supply and away from residential areas. If the hillside topography can be fully utilized, the stockyard can be placed on the higher ground level of the hillside, which can reduce the feeding height of the batching machine, so that the climbing angle of the loading machine is small or no climbing, which saves energy and reduces energy. abrasion. Care should be taken to avoid ground and underground cables, power supplies or communication cables when installing the equipment.
4, the choice of aggregate conveyor belt machine
If the site is wide, it should be preferred to use a small angle (18°) flat belt conveyor (in order to reduce the equipment procurement cost, you can also use the lifting hopper method). If the site area is limited, you can consider a large inclination (usually 40 ° ~ 50) °) rib belt conveyor (with additional belt structure, can reach 90 °). However, in the wet environment of sand and gravel, the large angle rib belt conveyor has the disadvantage of sticking sand. When the belt returns, the sand falling under the belt is more serious. The commercial concrete ratio should consider the utilization factor of sand.
5, the selection of aggregate batching machine (scale)
A complete commercial concrete mixing plant aggregate weighing scale is 1 scale when measuring, and 2 to 4 scales when measuring separately. To ensure that each aggregate has sufficient stock capacity, each aggregate can be designed into two scale ingredients.
If the construction requirements are low, the batching machine with two aggregate aggregates is selected; if the project has special requirements, it must use three or four kinds of aggregates to measure the batching machine, or even each aggregate is metered separately. Batching machine. For the selection of other scales, it is possible to determine the configuration of cement scales, fly ash scales, powdery admixture scales (feed by the mother-child screw machine), water scales and liquid admixture scales (1 to 2).
6, testing equipment
If equipped with sand moisture content detector, through computer control, according to the different moisture content of sand, online addition and reduction can be achieved.
This article is reproduced from Gu'an Xinxiang Filter Equipment Co., Ltd.: http://
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