Selection principle:
1, production scale
Judging the production capacity of concrete mixing equipment according to the size of production scale. The annual output is less than 200,000 m3, and the productivity of concrete mixing equipment is generally not less than 90 m3/h; The annual output is 20. 1 10,000m3, and the productivity of concrete mixing equipment is generally120m3/h; The annual output is more than 300,000 m3, and the productivity of concrete mixing equipment is generally 150 m3/h or 200m3/h. ..
2, the construction site
According to the size of the construction site, concrete mixing station or concrete mixing station can be selected. When the concrete mixing station is selected, the aggregate can be upgraded once. Compared with the mixing station, the mixer with the same capacity has higher productivity, neat and beautiful overall shape, small yard area and good production environment, but the manufacturing and installation cycle is long and the one-time investment cost is high.
When choosing a concrete mixing station, the aggregate needs to be lifted twice, with flexible layout, short manufacturing and installation period and low one-time investment cost, but the yard occupies a large area and the production environment is poor.
3. Auxiliary equipment
Select the specifications and working dimensions of concrete mixer according to the equipment. The loading capacity of the mixer truck should match the unloading capacity of the mixer truck, and improper matching will affect the work efficiency. The loading capacity of the loader should match the loading height of the batching station of the concrete mixing station.
4. Management function
If intensive network management is adopted, the network management function of concrete mixing equipment should be considered to avoid bringing difficulties to future upgrade.
5. Technical performance of the equipment
Mainly from the advanced nature, reliability, Excellence and versatility of the equipment. The equipment should have the characteristics of advanced working principle, high degree of automation, powerful management function and good environmental protection performance. The equipment should have excellent configuration, reliable control mode, strong applicability and good maintainability.
In addition, we should also consider high metering accuracy, good mixing quality, high production efficiency, low energy consumption, large amount of standard parts and good interchangeability.
6, supplier reputation
Mainly including whether the installation and debugging are strict; Whether technical guidance and training are in place; Whether the after-sales service is timely; Whether the supply of spare parts is sufficient.
7. Performance-price ratio
It is unwise to pursue the technical performance of equipment in an all-round way, which will increase unnecessary investment, but it is not advisable to pursue only low investment and reduce the technical performance of equipment, which will increase the use cost. Imported equipment has high comprehensive performance in the domestic market, but the price is also expensive.
Although the comprehensive performance of domestic equipment of several famous brands in China cannot be compared with that of imported equipment, imported components are widely used in the configuration of key components, and their main performance is not much worse than that of imported equipment, but their prices are much lower. It is more reasonable to choose the right cost performance.
Extended data:
Safety precautions:
1. During installation, it is forbidden to tilt the silo and deform the legs.
2. The bottom of the leg is welded firmly with the embedded parts of the foundation.
3, do a good job of wind and lightning protection.
4, it is forbidden to strongly impact the leg and warehouse.
5, regularly check the cement adhesion of dust bag, clean up in time.
6, the foundation must be solid, in line with the architectural design specifications.
7. Once the bag is blocked and the pressure in the warehouse exceeds the safety pressure of the pressure safety valve at the top of the warehouse, the pressure safety valve can be opened to release the pressure in the warehouse to prevent the warehouse from exploding.
8. The cement silo (cement silo) must be erected with a special crane when working, and then placed on the precast concrete foundation. After the cement silo (cement silo) is erected, its verticality with the horizontal plane should be checked, and then its bottom should be welded firmly with the foundation embedded parts.