Overview

The British Building Materials Company is an enterprise engaged in the production and sales of building materials, and machine-made sand is one of its main products. The company needs to purchase new screening equipment to improve the screening efficiency and accuracy of machine-made sand. The customer saw our gyratory swing screen on Alibaba and sent an inquiry.

Material Analysis

1) There is a large content of stone powder particles in the production of machine-made sand, and the gradation requirements are high. It is not suitable to use rectangular and circular sieve holes. Square square hole sieves are generally used.

2) The selection of screen hole size directly affects the quality and production volume of machine-made sand. Research shows that the larger the screen size, the greater the fineness modulus of the manufactured sand produced and the lower the stone powder content. The smaller the screen size, the smaller the fineness modulus of the manufactured sand produced, and the greater the stone powder content. Therefore, the recommended screen hole size in the general sand making process is 3.5-4.5mm.

3) In order to achieve better screening efficiency and processing capacity of materials, according to the experience of the vibrating screen manufacturer, the inclination angle of the screen surface is generally about 20°.

Selection of machine-made sand powder removal equipment

There will be 10%~20% stone powder (75μm particles) in the production process of machine-made sand. An appropriate amount of stone powder can improve the poor workability of machine-made sand concrete and increase the compressive and flexural strength of concrete. However, too high a stone powder content will It affects the performance of machine-made sand concrete, so the powder of machine-made sand must be removed.

The powder removal process of machine-made sand is the key to controlling the powder content of machine-made sand. It is necessary that the powder content in machine-made sand meets the requirements for different grades of concrete and has little impact on the gradation, our engineers recommend using dry sand grading.

Solutions

According to customer requirements, we recommended a square gyratory swing screen to our customers.The screening equipment adopts a five-layer screen structure, with each layer’s mesh size precisely matching the customer’s requirements, ensuring effective screening of machine-made sand of different particle sizes. Additionally, the gyratory motion of square gyratory vibrating screen ensures uniform distribution of materials on the screen, improving screening efficiency.

By adjusting the vibration frequency and angle of the screen, we can achieve precise control of materials of different particle sizes. The particle size distribution of the screened machine-made sand fully meets customer requirements, with high screening efficiency and large output. The multi-layer grading design achieves a capacity of 2000 kilograms per hour, meeting the customer’s capacity requirements.

Furthermore, the square gyratory swing screen has the advantages of energy saving, environmental protection, convenient screen replacement, simple operation, and aesthetic and wear-resistant equipment. The equipment operates on the 400V, 50Hz, 3-phase power supply as required by the building materials company, ensuring stable and reliable operation. Its compact structure is suitable for various production environments.

Customer Feedback

The company is very satisfied with the screening effect of the square gyratory swing screen machine. The particle size distribution of the screened machine-made sand is uniform, with high purity, meeting the customer’s strict requirements.