Research on the development and application of ash spreader technology
1. Overview
A ash spreader is a special mechanical equipment used for spreading powdered materials (such as lime, cement, fly ash, etc.) in road construction, soil improvement and other projects. With the rapid development of infrastructure construction in my country, the requirements for construction efficiency and project quality are constantly increasing, and ash spreaders are increasingly widely used in engineering construction.
2. Main structural components
2.1 Storage system Bin: Made of high-strength wear-resistant steel plate, the volume is usually 5-15m³;
Arch-breaking device: Equipped with a vibration motor or mechanical stirring device to prevent material arching;
Material level monitoring: Ultrasonic or radar sensors are used to monitor the material level in real time;
2.2 Conveying system
Screw conveyor: Variable pitch design is adopted to ensure uniform conveying;
Measuring device: Including weighing sensor and flow meter, with an accuracy of ±1%;
Drive system: Using variable frequency motor or hydraulic motor to achieve stepless speed regulation;
2.3 Spreading system
Spreading plate: Diameter 600-1200mm, adjustable speed range 200-800rpm;
Adjustment device: Adjustable spreading angle and height, spreading width 3-8m adjustable;
Auxiliary system: Including dust removal device and guide plate;
3. Working principle
When the ash spreader is working, the material in the storage bin falls evenly through the arch-breaking device and is transported to the spreading plate through the screw conveyor. Under the action of centrifugal force, the material is evenly thrown onto the working surface. By adjusting the speed, height and angle of the spreading disc, the uniformity and range of spreading can be controlled.
4. Key technical parameters
Operation efficiency: 50-300t/h
Spreading accuracy: ±3%-5%
Power configuration: 75-150kW
Control mode: manual/automatic optional
Adaptive vehicle speed: 3-15km/h
5. Technical features
5.1 High efficiency
Adopting large-capacity silos and efficient conveying systems, it can operate continuously and significantly improve construction efficiency.
5.2 Accuracy
Equipped with advanced metering control systems, the spreading amount can be accurately controlled with an error of less than 5%.
5.3 Environmental protection
Equipped with a dust removal system, the dust emission concentration during operation is less than 20mg/m³, which meets environmental protection requirements.
5.4 Adaptability
It can adapt to the spreading of ash materials of different properties and meet the needs of various working conditions through parameter adjustment.
6. Application fields
6.1 Road construction
Improvement of roadbed lime;
Construction of fly ash stabilization layer;
Construction of cement stabilization layer;
6.2 Soil improvement
Improvement of acidic soil;
Farmland soil conditioning; Improvement of saline-alkali land;
6.3 Other fields
Landfill treatment;
Mine ecological restoration;
Industrial site treatment;
7. Selection points
7.1 Selection according to operation requirements
Small projects: use traction or suspension type, power 75-100kW;
Large projects: use self-propelled type, power 120-150kW;
7.2 Selection according to material characteristics
Materials with good fluidity: use standard type;
Materials prone to arching: use models with strong arch breaking device;
7.3 Selection according to environmental protection requirements
General area: standard dust removal configuration;
Environmental protection strict control area: use high-efficiency dust removal model;
8. Operation and maintenance
8.1 Operating procedures
Check the status of each component before operation;
Start the equipment according to the prescribed procedures;
Pay attention to the instrument parameters during operation;
Clean the equipment in time after operation;
8.2 Maintenance and care
Regularly lubricate moving parts;
Check the wear of the conveying system;
Clean the dust removal system;
Regularly calibrate the metering device;
9. Development trend
9.1 Intelligent development
Adopt GPS automatic navigation system;
Develop intelligent control system;
Realize remote monitoring function;
9.2 Improve environmental performance
Develop low noise technology;
Improve dust removal system;
Develop new energy power;
9.3 Multifunctionality
Develop replaceable working device;
Realize one machine for multiple uses;
Expand the application field;
10. Conclusion
As an important equipment in modern engineering construction, the technical level of ash spreader directly affects the construction quality and efficiency. With the continuous development of technology, ash spreader will continue to progress in the direction of intelligence, environmental protection and multifunctionality, providing more efficient and accurate equipment support for engineering construction.
