Technical transformation of compound fertilizer dryer combined lifting plate
Introduction:
Traditional compound fertilizer dryers have long had inefficiency problems such as low output, high energy consumption, and poor thermal efficiency. In order to solve these problems, a novel combined lifting plate design was introduced. This article discusses the technical transformation of the combined lifting plate of the compound fertilizer dryer, focusing on the advantages and application effects of this new method.
1. What are the shortcomings of the single L-shaped plate dryer in use?
The single L-shaped plate dryer commonly used in compound fertilizer production has several inefficiency problems:
- Poor heat exchange: Inefficient interaction between sections of the dryer wind tunnel results in low work efficiency.
- Very limited material distribution: The material only occupies part of the dryer space, resulting in low dispersion and high energy consumption.
- The contact time between air and material is short: The material lifted by the L-shaped plate falls quickly, reducing the contact time with hot air.
- The material stays in the dryer for a short time: The limited axial resistance causes the material to stay in the dryer for a short time, further shortening the contact time with hot air. So how to solve the above problems? Tongli adopts an innovative combined copy board design to solve the above problems.
2. Innovative combined plate dryer design
To overcome these inefficiencies, a combined lifting plate design was developed that featured a mix of 40° spiral angle plates, 180° plates, 100° plates, and 135° plates. This design promotes a stable material curtain, extends mass transfer heating time, and improves dispersion:
- Combined lifting plate structure: The dryer barrel is divided into four sections, each with a specific plate arrangement to maximize material dispersion and heat transfer.
- Working performance: The combined plates ensure a high degree of material dispersion and extend the air contact time, significantly improving thermal efficiency and dryer output.
3. Determination of the optimal wind tunnel angle for the lifting plate of the dryer
During the design process, tongli determined the optimal angle of the wind tunnel based on the layout of the composite panels:
- Center Angle Test: Test the center angle of 100°, 180° and 135° plates to find the best material position and maximum dispersion.
- Linear model application: Linear modeling of the relationship between central angle and rotational speed, using the least squares method to fit the curve equation.
4. The effect of using the combined lifting plate
The combined plate design has been put into use in major domestic compound fertilizer plants and has received good reviews:
- Significantly increase compound fertilizer output: Under the same inlet humidity conditions, the improved dryer can increase output by 5-10 tons per hour.
- Achieve lower discharge moisture: The combination of lifting plates results in lower discharge moisture and is easy to control, which can save about 300kj per ton of production energy consumption.
- Improve economic benefits: The new design has been designed by Tongli Heavy Machinery and applied in major compound fertilizer plants across the country, and has achieved considerable economic benefits. Compound fertilizer plants can save US$5,000 per ton every year.
In Conclusion
The composite plate design of the compound fertilizer dryer is a significant improvement over the traditional L-shaped plate. Enhanced material dispersion and extended heat transfer times improve efficiency, increase throughput and reduce energy consumption. This innovative method marks a major advancement in the drying process of compound fertilizer.
- Compound fertilizer dryer efficiency
- Heat transfer improvement in dryers
- High-efficiency fertilizer production
- Advanced drying technology
- Dryer energy consumption reduction
- Fertilizer production optimization
- Combined lifting plate advantages
- Innovative dryer plate design
- Compound fertilizer manufacturing
- Thermal efficiency in drying systems
