Sized concrete mixing station automatic control
Sized concrete mixing station infrastructure is an indispensable production equipment, is an important new rural construction equipment, but it is also a complex control system is composed by the multi-link. In the production of concrete, 2015 electric cement mixer for sale price weighing accuracy ingredients, ingredient mix ratio, the moisture content of raw materials and water supply directly affect the quality of concrete, in addition, the control system connected to the hardware device, the recipe data storage, production process, raw materials registration, warehouse management, operations manager registration records, product transportation and other aspects of the management of records also directly affect business productivity. Automatic control system not only try to concrete mixing plant, concrete mixing station, but also in small and medium sized concrete mixing plant is widely used in automatic control system and the traditional manual control system, compared with various advantages, such as say the amount of precision, construction ratio, etc. These advantages are obvious, now Ole Heavy technician to apply it to small and medium sized concrete mixing station, the purpose is to better serve customers, the small and medium sized mixing station to do practical, and better able to contribute to the development of new rural construction.
The basic composition of concrete mixing station
Concrete mixing station Workflow: After the mixer control system startup, enter the human - machine dialogue interface, system initialization process, including the recipe number, concrete grade, slump, producers amount. Sensors for each hopper, detection, output material empty or material full signal prompts the operator to determine whether to activate the metering hopper stirrer control program based on. Start sand, stone aggregate weighing belt motor fed into the hopper; open fly ash, cement silo butterfly valve, screw conveyor motor start transporting fly ash, cement to powder weighing hopper; open pump and additive pump to water and jzc350 drum concrete mixer for sale price additives into the metering hopper. After the measurement meet the set requirements Doudou door open metering, mixing the ingredients into the blender started inside, to set time doors open mixer, concrete mixer entered. Concrete mixing station is mainly made of concrete mixer, material weighing system, material handling systems, material storage and control systems and other five major systems and other ancillary facilities components.
1, mixer: mixer stirring their way into compulsory mixer and self-loading mixer. Compulsory mixer is at home and abroad mainstream use concrete mixing station, which can be stirred liquidity, semi-rigid and rigid and other dry concrete. Self-loading concrete mixers main stirring liquidity, rarely used in mixing station. Compulsory mixer according to the spindle structure is divided into a planetary mixer, single horizontal shaft mixer and twin-shaft mixer. The integrated use of performance especially in the twin-shaft compulsory mixer is best. Our series of concrete mixing station in all twin-shaft compulsory mixer. 2, material weighing system: Material weighing system is affecting the quality of concrete and concrete production cost of key components, divided into aggregate weighing, weighing powder and liquid weighing three parts. Under normal circumstances, 35 cubic meters per hour or less concrete mixing station superposition weighing methods that aggregate (sand and stone) with a pair of scales, a scale with cement and fly ash, water and liquid additive respectively, diesel concrete mixer india manufacturers said amount, and then put into the water, said liquid additive premixed infighting. In more than 50 cubic meters per hour of concrete mixing station, said the use of various materials weighing separate ways, all have adopted electronic weighing scales and computer control. Aggregate weighing accuracy ≤2%, cement, powder, water and additives weighing accuracy have reached ≤1%. 3, material handling systems: conveying material conveyed by aggregate, powder transportation, water and admixtures delivery of three parts. At present there are concrete mixing station aggregate transport conveyor hopper and belt conveyor in two ways. Advantages bucket elevator is a small footprint, simple structure. Advantages belt conveyor is transporting distance, high efficiency, low failure rate. Conveyor belt is mainly used to aggregate concrete mixing station temporary storage, thereby increasing productivity mixing station. Concrete is mainly used for cement powder, fly ash and slag. Mixing station currently widely used is the screw conveyor transport. Advantages of the screw conveyor is simple in structure, low cost, and reliable. Water and liquid additives are fed by pumps. 4, material storage systems: concrete mixing station for storage of material used basically the same. Aggregate open dumps (and there are large-scale urban commercial concrete mixing station with a closed silo); powder cement warehouse storage; admixture steel container. 5, the control system: stirrer control station of the central nervous system of the entire device. Control system according to the different requirements of users and the size of the mixing station and have different functions and preparation, the construction site with a small concrete mixing station generally simpler control system, and the system is relatively large mixing station complex.