On-site treatment of cover brick tilting problem and problem analysis
Release time:
2025-05-08 00:00
Source:
Measures to deal with the problem of tilting of cover bricks
The top wire of the cover of an electric furnace built by our company is movable and can be twisted by hand. The reason is that the open-hearth furnace is not adjusted in time when it is kept warm and resumed production, which causes the lower pool wall or the top wire of the pool wall to shrink and the gap to become larger when the furnace is stopped. When the temperature rises, the gap becomes larger, and the bricks will go outward, causing them to sink. In order to solve this problem, a wire position can be welded between the supporting plate and the column to make the supporting plate fixed. In addition, the lack of power of the flowing fans, resulting in large temperature differences, may also be one of the reasons. Finally, the cover bricks and the fused bricks between the over-layer are not reinforced and also need to be strengthened.
Analysis of furnace reinforcement and deformation
First of all, the transition layer supporting plate did not form a complete circle, causing the bricks to move to both sides after expansion and the middle bricks to sink three centimeters. Secondly, the ascending road was badly deformed, tilted by 40 mm, and the upper two grooved cylinders were not reinforced. The reinforcement method is unreasonable, the top wire is displaced, and Cao Gang is bent. Finally, it is recommended that when the furnace is reinforced in the future, the breast wall should be made into a uniform shape, and the furnace door should be made strong and able to rotate freely.
Inspection perception and on-site reinforcement suggestions
During the heating and expansion of the material, the steel needs to be restricted so that it does not expand freely. At the same time, the structure of the reinforced steel must be a complete closed structure, not a single column. In practice, it is necessary to pay attention to the problem of the slope of the ascending road to ensure that the on-site reinforcement personnel can fully understand how to reinforce. In addition, what should I do after the problem of the feeding door? It is advisable to make the bricks beveled so that the molten glass remains in the furnace as much as possible.
Related News
1. Key indicators for successful commissioning The operation of the furnace needs to follow two balances (balance between feeding and discharging volume, balance between power transmission and heat output) and three stabilizations (stable discharge, stable raw material layer, and stable power input). The thickness of the raw material layer is controlled at 150-180 mm, and the surface bubbles evenly. Power adjustment should be carried out slowly, with each adjustment amount not exceeding 1% of the operating current and the interval time exceeding 10 minutes. 2. Operation and maintenance and inspection requirements of the furnace Check the operating temperature, control parameters, circulating water temperature, transformer status, etc. every hour, and fill in the operation record form truthfully. Regularly inspect the cooling water system, air-cooling system, and key parts of the furnace (such as electrode holes, slag discharge holes), etc., to ensure that there are no abnormalities. Inspect the power outage emergency equipment every month to ensure that it can start normally in the event of a sudden power outage.
Operation steps and techniques of glass electric melting furnace
Operation steps and techniques of glass electric melting furnace In the modern glass manufacturing industry, bottle making glass electric melting furnaces are becoming more and more widely used. It not only improves production efficiency but also reduces energy consumption. However, many people do not know much about its operation steps and techniques. Today, we will discuss in detail how to properly operate a bottle making glass electric melting furnace to ensure the production of high-quality glass products.
Physical and chemical properties and characteristics of glass liquid
The physical and chemical properties and characteristics of alkaline slag glass liquid such as erosion resistance, impedance, thermal stability, mechanical strength, bulk density and shrinkage. Among them, the glass liquid performs prominently in the reducing atmosphere and can effectively block metal drilling; low expansion coefficient and good thermal shock stability; After high temperature sintering, a dense structure is formed, with an internal compressive strength of up to 10-12 megapascals and a compressive strength of up to 64-70 megapascals. In addition, the configuration of capacitive high steel jade guide feeding, including inverted feeding, sealing material and mud, as well as the configuration method of binder, is also introduced.
What matters need to be paid attention to in the installation of steel structures
Precautions for steel structure installation: 1. During installation, it is necessary to ensure that the main foundation of the center is parallel to the plant building, and the promotion of the batching system should be well connected. 2. Calculation method of stair cutting size: calculated by horizontal height, horizontal length and channel steel model. 3. When installing decorative columns, first set the straight plane and then hang the angle circle beam to ensure accuracy and stability.
Advantages and disadvantages of different height powder layers
1. Advantages and disadvantages of powder layer thickness Taking conventional soda-calcium wine bottle products as an example, under normal circumstances, the height of the powder layer is controlled at 200~300mm, and the production effect is the best. If the height of the powder layer exceeds this range, it is easy to cause uneven material, that is,
Characteristics of the powder layer of the glass electric melting furnace
The batch layer covered on the surface of the electric melting furnace is called the powder layer, and the height of the powder layer is an important parameter for the design of the glass electric melting furnace. Different from the traditional flame kiln, the electric furnace adopts a vertical melting process, and the powder layer is completely covered on the surface of the molten glass in the melting pool, and at the same time, the heat radiation of the melt to the kiln roof is blocked, so that the temperature of the upper space of the kiln is reduced to below 150 degrees Celsius, commonly known as "cold top". The volatile components in the batch are condensed in the powder layer and flow back into the molten glass, and gases such as carbon dioxide released during the melting process can easily pass through the powder layer and enter the space. The powder layer flows from top to bottom and melts continuously as the temperature rises, gradually completing the clarification and homogenization process.