Mongolia Cement Hollow Block Machine

Langfang Nianpeng Mechanical Equipment Processing Co., Ltd. is one of the most reliable manufacturers and suppliers of mongolia cement hollow block machine in China. If you're going to buy high quality mongolia cement hollow block machine, welcome to get pricelist and quotation from our factory. For price consultation, contact us.

 

 

The following is an introduction to the principle and characteristics of Nianpeng brick making machine equipment in English:

Working Principle

 

Raw Material Mixing and Conveying Principle: Various raw materials such as construction waste, fly ash, slag, tailings slag, stone powder, sand, stones, cement, etc. are put into a mixer in a certain proportion. An appropriate amount of water and other additives are added, and the mixer uses mixing blades and other devices to stir thoroughly, evenly mixing the raw materials to form a mixture with a certain humidity and viscosity. Then, it is conveyed to the position of the molding mold.

Vibration and Pressing Molding Principle: After the mixture enters the molding mold, the equipment makes the mold vibrate through a frequency-modulated and amplitude-modulated vibration device or a hydraulic vibration device, etc., so that the mixture gradually fills the mold cavity densely under the action of vibration. Meanwhile, the brick pressing machine or the hydraulic system exerts a certain pressure. Under the combined action of vibration and pressure, the mixture is pressed into the brick blank of the required specification and shape.

Demolding Principle: After the brick blank is formed, the demolding mechanism, such as mechanical demolding or hydraulic demolding, is used to remove the formed brick blank from the mold, completing a brick making process. After that, the brick blank is conveyed to the designated position for subsequent treatment such as curing.

Equipment Characteristics

 

Energy-saving and High-efficiency: The frequency-modulated and amplitude-modulated vibration technology is adopted to save energy while ensuring the high density of non-fired recycled bricks. The equipment is highly efficient and can quickly complete a large number of orders. For example, its fully automatic brick making machine can realize the whole process of automation from raw material input to finished product output, greatly reducing manual intervention and improving production efficiency.

Diverse Raw Materials: It mainly uses industrial waste such as construction waste as raw materials, and can utilize fly ash, slag, tailings slag, etc., which is in line with environmental protection requirements, turns waste into treasure, and can effectively reduce production costs.

Diverse Products: It can produce a variety of non-fired recycled bricks, such as standard bricks, load-bearing hollow bricks, walkway and driveway combined non-fired recycled bricks, lawn non-fired recycled bricks, boundary non-fired recycled bricks, revetment non-fired recycled bricks, etc. It is easy to produce bricks of different shapes and sizes by simply changing the mold to meet different market demands.

Convenient Maintenance: The modular design makes installation, repair and maintenance convenient. The structure and design of the equipment are relatively simple, reducing the use cost.

High Degree of Automation: It adopts advanced hydraulic transmission technology and intelligent control system, and can realize automatic operation controlled by PLC computer program. The whole process is PLC intelligent control, with simple and clear operation, man-machine dialogue and fault diagnosis.

Reliable Quality: It is equipped with an efficient hydraulic vibration and pressing system to ensure high strength and high quality of products. Its core components are made of high-strength and wear-resistant high-quality steel, which is compressive and impact-resistant. The equipment is durable and can ensure the stable production of high-quality brick blanks.

 

The raw materials for making brick blanks need to meet the following conditions:

In terms of Physical Properties

 

Particle Size: Generally speaking, the particle size of raw materials should be moderate. If the particles are too coarse, it will be difficult to form the brick blank, resulting in an uneven surface. During the firing process, cracks and other defects may occur due to the large gaps between the particles. If the particles are too fine, the shrinkage of the green body will be too large, and cracking and other problems are also likely to occur. For example, for the clay used to make ordinary sintered bricks, most of the particle size is usually required to be between 0.05 and 2mm.

Particle Shape: The shape of raw material particles is preferably close to spherical or cubic. Such particles can fill each other better during mixing and molding, making the green body more dense. If the particle shape is too elongated or flat, it may affect the strength and stability of the green body.

Moisture Content: The moisture content of raw materials has a great influence on the forming and quality of brick blanks. If the moisture content is too high, the green body is prone to deformation after molding, and cracks may occur during the drying process due to the excessive evaporation of water. If the moisture content is too low, the plasticity of the raw materials is poor and it is difficult to form. The moisture content requirements vary depending on different raw materials and brick making processes. For example, for ordinary clay brick making, the moisture content of raw materials is generally controlled at about 15% - 20%.

Plasticity: Good plasticity is one of the important conditions for raw materials. Raw materials with good plasticity can be easily molded into the desired shape during the molding process, and are not easy to be damaged during demolding and handling. For clayey raw materials, their plasticity index is generally required to be between 7 and 17.

In terms of Chemical Properties

 

Main Components: Different types of bricks have different requirements for the main components of raw materials. For ordinary sintered bricks, the main components are usually oxides of silicon, aluminum, iron, etc. Among them, the content of silicon dioxide (SiO₂) is generally 50% - 70%, and the content of aluminum oxide (Al₂O₃) is about 15% - 30%. Such a component ratio helps to ensure the strength and durability of the bricks.

Chemical Stability: The raw materials should have good chemical stability and should not easily undergo chemical reactions during storage, processing and firing, which may affect the quality of brick blanks. For example, components such as carbonates and sulfates in the raw materials may decompose to produce gases at high temperatures, causing problems such as pores or expansion in the brick blanks. Therefore, their content needs to be controlled within a certain range.

Fluxing Components: An appropriate amount of fluxing components helps to reduce the firing temperature of the raw materials and improve the density and strength of the bricks. Common fluxing components include calcium oxide (CaO), magnesium oxide (MgO), iron oxide (Fe₂O₃), etc., but the content should be appropriate. Otherwise, it may affect the color, hardness and other properties of the bricks.

In terms of Impurity Content

 

Harmful Impurities: The content of harmful impurities such as sulfides and organic matters in the raw materials must be extremely low. Sulfides will produce gases such as sulfur dioxide during the firing process, which will not only pollute the environment, but also cause pores, looseness and other defects in the bricks. Organic matter will burn at high temperatures to form pores, reducing the strength and durability of the bricks. Generally, the organic matter content is required to be no more than 1%.

Salts: If the content of soluble salts such as sodium chloride and sodium sulfate in the raw materials is too high, it will cause efflorescence on the brick blanks during the drying and use process, affecting the appearance and durability of the bricks. Usually, the soluble salt content is required to be no more than 0.5%.

 

 

 

 

 

 

 

 

 

 

 

 

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