Application of Silo Venting Filter in large concrete mixing plants

Project Introduction

Project Name: Upgrading and Reconstruction of the Concrete Batching Plant Supporting the Large-scale Infrastructure Construction Project in Suzhou

In order to promote infrastructure construction and improve the urban development level, the city has launched a series of large-scale projects, including road expansion, new bridge construction, and urban rail transit construction. The original concrete batching plant has aging equipment, low production efficiency, and fails to meet environmental protection standards, and it is unable to meet the demand for large-scale and high-quality concrete supply. To ensure the smooth progress of the project, the project party has decided to comprehensively upgrade and reconstruct the concrete batching plant, with a focus on solving various problems of the cement silo system.

Challenges Faced

Efficiency Bottleneck

The original cement silo conveying equipment is obsolete. The screw conveyor frequently breaks down, and the conveying speed is slow, which seriously affects the production efficiency of concrete. As a result, the concrete batching plant often fails to complete orders on time.
Environmental Protection Pressure

The performance of the dust collector on the silo roof is unsatisfactory, and the dust emissions far exceed the standard, polluting the surrounding environment. The plant has received rectification notices from the environmental protection department on multiple occasions.
Quality Risks

The accuracy of the measurement system is insufficient, and there are significant deviations in the cement batching, leading to unstable quality of the concrete and affecting the quality of engineering projects.

Implementation of the Solution

Construction of an Efficient Conveying System

Our company installed a new type of screw conveyor with a large diameter for the concrete batching plant. It is equipped with a high-power motor and an intelligent speed-regulating device. The conveying efficiency has been increased by 50% compared with the original equipment, ensuring that the cement can be quickly and stably conveyed to the mixer to meet the production rhythm.

Environmental Protection Upgrade

An advanced pulse bag dust collector on the silo roof was installed. This dust collector uses high-efficiency filter materials and intelligent pulse cleaning technology. The dust removal efficiency is as high as 99.9%, and the dust emission concentration is far lower than the national standard. It effectively improves the environment around the concrete batching plant and successfully passes the environmental protection acceptance.

Optimization of Precise Measurement

High-precision load cells and a newly designed measuring hopper were installed, and they are matched with an intelligent control system. This enables the precision control of cement batching within ±0.2%, greatly improving the stability of the concrete quality and ensuring the construction quality of the engineering project.

Project Achievements

After the upgrading and reconstruction of the concrete batching plant, the daily output has increased from the original 500 cubic meters to 800 cubic meters, significantly improving the production efficiency and meeting the high-intensity demand for concrete in the project.

At the same time, as it meets the environmental protection standards, it has avoided environmental protection penalties and established a good corporate image. The improvement in the quality of the concrete has reduced the project rework rate, saving a large amount of costs for the project and winning high recognition from the project party.