Introduction to the production process and industrial applications of glass beads

Glass Bead Production Process: (1) Check the forward and reverse rotation of the motor. (2) Open the air intake of the furnace, start the induced draft fan, evacuate the remaining gas in the furnace. After five minutes, start the circulating water pump. After the water in the furnace's drain pipe flows smoothly, prepare for ignition. (3) Open the air distribution port of a torch and start ignition. First, point the igniter at the air distribution port of the torch, slowly open the gas pipeline valve, and turn off the igniter after ignition. (4) Start the cooling auger, start both at the same time. (5) Start the vibrating screen. (6) After everything is normal, check everything, ensure the equipment and furnace temperature are normal, and then start the electromagnetic feeder to start feeding. (7) Check the quality of the glass beads. Gradually add materials and only increase the furnace's production capacity when the quality is ensured. (8) Ensure that the temperature of the glass beads will not damage the packaging before filling. The production process of glass microspheres involves the recycling of waste glass → crushing and screening → glass sand (or purchase) → firing → cooling and screening → weighing and packaging. Glass Bead Uses: 1. Sandblasting of aviation components to eliminate stress, increase fatigue strength, and reduce friction and wear; 2. Sandblasting to remove rust, paint, carbon deposits, and machining marks; High-strength grinding glass balls 4-5mm 3. Pre-treatment before anodizing and electroplating, which not only cleans but also increases adhesion; 4. Cleaning weld seams and removing surface scratches on stainless steel workpieces; 5. Cleaning and derusting of wire-cutting molds; 6. Cleaning rubber molds.

2021

08-18

The quality of the glass beads is related to the feeding method.

In the manufacturing process of solid spheres, it is known to feed crushed glass particulate raw materials in a carrier gas stream to a combustion chamber, where the glass particulate stream is heated by flames, thus making the crushed glass into spherical particles. Similarly, for the manufacture of foam spheres, it is known to provide a small spherical raw material to the combustion chamber. In the combustion chamber, due to the action of the flame, these small spheres are heated and transformed into foam glass spheres. Such a raw material is usually made by spray-drying a solution (e.g., a solution mainly composed of sodium silicate solution and also containing a foaming agent (e.g., urea)). The way of heating the raw material is crucial to the quality and yield of the formed spheres, especially when those spheres are to be made into foam glass spheres. At the same time, the economy of the production process is also important. Rapid heating is beneficial to the vitrification of the formed spherical particles and/or raw materials, which requires good thermal contact between the flame and the raw materials. In order to obtain a product of uniform quality, it is important that the spheres produced by this production method should be uniformly processed in the combustion chamber, and it is also important to reduce the tendency of solid materials to bond and/or adhere to the side walls of the combustion chamber, which may be caused by excessive heating during the conversion of the raw materials into spheres. One object of the present invention is to help meet at least some of the above requirements. In this method, the raw material is subjected to the action of a flame in a combustion chamber, so that the raw material is heated and the said glass spheres are made, after which these spheres are taken out from the said combustion chamber. It is characterized in that the raw material supplied to the combustion chamber is dispersed in a carrier gas stream, which is a mixture including fuel gas and oxygen supplied to the flame in the combustion chamber, and inert gas is also supplied to the combustion chamber to maintain a gas stream that flows along and around the flame trajectory to form a gas ring. Ensure uniform and good processing of the raw materials to increase the yield of high-quality spheres obtained. Due to the adoption of this method of supplying raw materials and gas to the combustion chamber, each unformed sphere is completely surrounded by a stable flame, allowing them to be rapidly heated within the gas ring, which transfers additional kinetic energy to the raw materials and spheres, so that the processed spheres can be collected and transported out of the combustion chamber, while keeping the spheres in a sufficiently dispersed state, thus avoiding the spheres from bonding or adhering to the side walls of the combustion chamber. A more important advantage of the method employed in the present invention is that it has been found that the side walls of the combustion chamber are colder than in other cases during the effective sphere-making process, which is beneficial for improving the economy of thermal processing and helps to extend the effective working life of the combustion chamber. In the preferred embodiment of the present invention, the said gas ring is formed by air supplied to the combustion chamber, which is advantageous for improving economy and convenience, and due to the presence of nitrogen, it provides a favorable stabilizing factor. The gas ring can provide a highly efficient screen to prevent glass or vitrifiable materials from colliding with the side walls of the combustion chamber. Similarly, the additional oxygen in the air provided promotes the complete combustion of the fuel gas, further improving fuel economy. For similar reasons, it is preferable that the additional oxygen in the said inert gas ensures that the oxygen in the combustion chamber exceeds the amount of oxygen required to maintain the complete combustion of the said fuel.

2021

07-29