The Production Process of Dry Mix Mortar Production Line

With the rapid development of the construction industry, environmental protection has become a growing concern worldwide. This has led to increased attention on the dry mix mortar production line.

Dry mix mortar, enhanced with specific chemical additives, is carefully formulated to meet precise ratios and functional requirements. This results in significantly improved mortar quality. The use of dry mix mortar eliminates the common defects associated with on-site manual preparation, ensuring consistent construction quality. Additionally, it reduces municipal waste, minimizes environmental pollution, and contributes to more civilized construction practices. As a green, eco-friendly building material, dry mix mortar holds substantial market potential.

Dry mix mortar is a uniform blend of sand, dried and screened, combined with minimal cementing materials (such as cement or gypsum) and high-tech additives, processed according to a scientific formula. The finished mortar boasts properties such as shrinkage resistance, crack resistance, heat insulation, and moisture resistance, tailored to various applications. The product can be packaged or shipped in bulk to the site, where it can be mixed with water in the specified proportions for immediate use. The production process of a dry mix mortar production line is as follows:  

1. Sand Pretreatment:

This step involves quarrying, crushing, drying, (grinding), screening, and storage. If river sand is used, it only needs to be dried and screened. If conditions allow, finished sand can be purchased directly and stored in the warehouse.

2. Storage of Materials: 

The cementing materials, fillers, and additives are stored in their respective storage areas.  

3. Ingredient Measurement: 

Raw materials are measured according to the specified formula.  

4. Mixing: 

All types of raw materials are placed in a mixer and thoroughly mixed.  

5. Packaging: 

The finished mortar is sent to the finished product warehouse, where it is either packaged or prepared for bulk packing.  

6. Transport to Construction Site: 

The mortar is transported to the construction site. Bulk dry mix mortar is typically delivered by bulk silo or specialized bulk transport vehicles to prevent segregation and maintain quality.  

7. On-Site Use: 

At the construction site, the dry mix mortar is added to a mortar mixer, mixed with water in the required proportions, and then pumped using a special mortar pump for use. Alternatively, it can be directly applied for on-site shotcrete construction.

8. Main Composition and Moisture Control: 

The primary component of dry mix mortar is sand, which constitutes about 70% of the mix. Sand has a significant moisture content, and its moisture level must be carefully controlled between 0.2% and 0.5%. If the moisture content exceeds this range, it can severely affect the quality of the dry mortar products. Therefore, it is crucial to check the moisture content of the raw sand before purchasing and during processes like drying, screening, and conveying. Ensuring that the finished mortar remains free of excess water is key to maintaining quality. To achieve this, the drying speed of the sand drum machine must be precisely controlled, and the water content in the sand must be regularly measured. The drying process is typically completed in a dryer, with two main methods in use: the vibrating fluidized bed and the drum-type machine. The drying speed is set based on laboratory measurements to ensure the proper moisture content is achieved.

9. Types of Dry Mix Mortar Production Lines: 

The dry mix mortar production line is designed for the centralized mixing of both ordinary and special mortars, often referred to as a dry mix mortar consumption plant. There are two primary types based on the mixing method: single-mixed dry mix mortar equipment and double-mixed dry mix mortar equipment. Additionally, the equipment can be categorized by construction mode into simple, serial, and tower dry mix mortar equipment. The control systems vary and include manual, semi-automatic, and fully automatic modes, depending on the level of automation required for the production process.

Henan Shengmao Machinery Co., Ltd provides strong technical support, reliable dry mix mortar production line mechanical equipment, complete service, we also have a efficient team to solve your problem in the future you meet.