Nigeria hollow brick equipment

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

 

 

Features
High production efficiency: high degree of automation, continuous production, greatly improving the production speed of blocks and shortening the production cycle.
Good product quality: the size, shape and strength of blocks can be accurately controlled to ensure the stability and consistency of product quality. The blocks produced have a regular appearance and high dimensional accuracy.
Saving raw materials: through reasonable design and molding process, raw materials can be effectively utilized, waste can be reduced, and production costs can be reduced.
Easy to operate: equipped with advanced control systems, operators can master operating skills after simple training, reducing the technical requirements for operators.
Strong adaptability: different molds can be replaced according to different production needs to produce blocks of various specifications and shapes to meet diverse construction needs.

 

Product Parameters

QT5-15 Concrete Brick Making Machine
Main vibration form	Platform vibration
Overall dimension	7310*2600*2890mm
Cycle time	20 seconds
Motor power	33kw
Pallet size	1100*570mm
Raw material	crushed stone, sandcement,dust and coal fly ashcinderslag gangue gravel, expanded perlite,and other industrial wastes
Applied Products	concrete blocks,solid/hollow/cellular masonry products, paving stones with or without face mix, garden and landscaping products slabs, edgers, kerbstones, grass blocks, slope blocksinterlocking blocks etc.

Brick type	Size mm	Cycle /Mould	QTY/Mold	pcs/Per hour	Per 8hours
Color brick	200*100*60mm	16-22s	18	2817-3600	22536-28800
S brick	200*110*60mm	16-22s	16	2500-3200	20000-25600
paver brick	200*160*60mm	16-22s	10	1565-2000	12520-16000
solid brick	240*115*53mm	15-20s	32	5760-7680	46080-61440
Hollow brick	400*200*200mm	16-18s	5	1058-1200	8464-9600

 

How to Optimize the Production Process of Block Machines to Improve Block Strength

 

To enhance the strength of blocks produced by block machines, optimization measures can be taken in multiple aspects, including raw material selection and processing, mixing, forming, and curing. The following is a detailed introduction:

Raw Material Selection and Processing

 

Cement Selection

Opt for high - grade cement. High - grade cement has better strength and gelling properties, providing stronger bonding force for blocks. For example, when producing high - strength blocks, Portland cement or ordinary Portland cement of grade 42.5 or above can be selected.

Ensure the quality stability of cement. Purchase from well - reputed manufacturers and pay attention to the storage conditions of cement to prevent it from getting damp and caking.

Aggregate Selection and Processing

Control the mud content of aggregates. Excessive mud content will reduce the bonding force between cement and aggregates. For sand, the mud content should be controlled within 3%, and for gravel, it should be within 1%. The mud content of aggregates can be reduced by methods such as washing.

Optimize the gradation of aggregates to ensure a reasonable particle - size distribution. A combination of large, medium, and small particles can improve the compactness of blocks. For instance, using continuously graded aggregates can reduce the porosity and enhance the strength of blocks.

Use of Additives

Add appropriate additives as needed, such as water - reducing agents and early - strength agents. Water - reducing agents can reduce the water consumption without changing the workability of concrete, thereby improving the compactness and strength of concrete. Early - strength agents can accelerate the hydration reaction of cement and improve the early strength of blocks.

Mixing Process

 

Mixing Time Control

Ensure sufficient mixing time to fully blend the raw materials. Generally, the mixing time of a compulsory mixer should be no less than 2 minutes. For some blocks with special requirements, the mixing time can be appropriately extended.

Employ advanced mixing equipment to improve mixing efficiency and quality. For example, the twin - shaft compulsory mixer has good mixing effects and high efficiency, enabling the raw materials to be uniformly mixed in a short time.

Optimization of Mixing Sequence

Reasonably arrange the feeding sequence of raw materials. Usually, add aggregates and cement first for dry mixing, so that the cement can evenly coat the surface of aggregates. Then add water and additives for wet mixing. This can improve the dispersion and hydration effect of cement and enhance the strength of blocks.

Forming Process

 

Adjustment of Vibration Parameters

Based on the specifications of blocks and the characteristics of raw materials, reasonably adjust the vibration frequency, amplitude, and vibration time. A higher vibration frequency and appropriate amplitude can better compact the materials. Generally, the vibration frequency can be controlled between 3000 - 6000 times per minute, and the amplitude between 0.5 - 2 mm.

Ensure sufficient vibration time to allow the materials to fully fill the mold and eliminate internal air and voids. The vibration time is generally between 10 - 30 seconds, and the specific time can be determined through experiments.

Control of Forming Pressure

Appropriately increase the forming pressure to make the blocks more compact and improve their strength. However, the pressure should not be too high to avoid block cracking. The forming pressure should be adjusted according to the type and design requirements of blocks, generally between 10 - 20 MPa.

Mold Design and Maintenance

Design a reasonable mold structure to ensure the dimensional accuracy and surface finish of the mold. The dimensional deviation of the mold should be within the allowable range, and the surface should be flat and smooth to guarantee the appearance quality and dimensional accuracy of blocks.

Regularly maintain and service the mold. Clean the residues inside the mold in a timely manner to prevent the mold from rusting and being damaged, which may affect the forming quality of blocks.

Curing Process

 

Control of Curing Temperature

Control the curing temperature within an appropriate range according to the hydration characteristics of cement. Generally, during normal - temperature curing, the temperature should be maintained between 10 - 30°C. A too - low temperature will slow down the hydration reaction speed of cement, while a too - high temperature may cause rapid water evaporation and surface cracking of blocks.

For blocks that need to quickly increase strength, steam curing can be adopted. The temperature of steam curing can be controlled between 60 - 80°C, and the curing time is determined according to the strength requirements of blocks.

Control of Curing Humidity

Keep the humidity of the curing environment to ensure sufficient hydration of cement. Methods such as covering with moisture - retaining materials and spraying water can be used to keep the block surface moist. In the initial stage of curing, the humidity should be maintained above 90%, and it can be appropriately reduced over time.

Extension of Curing Time

Guarantee sufficient curing time to allow the hydration reaction of cement to be fully completed. Generally, the curing time of ordinary concrete blocks should be no less than 7 days, and for high - strength blocks, it can be extended to 14 days or longer.

 

 

 

 

 

 

 

 

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