At present, industry and urbanization construction are in a period of rapid development, and there is a large demand for sand and gravel. As a gravel material paved on the pavement in buildings, bluestone has stable supply and large profit space, attracting many investors. But is the quality of bluestone sand good?What type of sand making machine is recommended? It is introduced in detail here.
1. Is the quality of Bluestone sand good?
Bluestone is commonly known as "melon seed slice" in architecture. It is also an ideal raw material for processing machine-made sand. Is the quality of bluestone sand good? No matter in terms of particle shape, particle gradation, stone powder content, mud content and crushing value, the quality is very good. Therefore, many sand making plants directly use bluestone for sand making, with simple process. In front, they can directly enter the sand making machine for sand making without adding crusher equipment, so as to reduce equipment investment and production cost.
01. The fineness modulus is generally within 3.4, and the grading meets the standard requirements;
02. The control of stone powder content is reasonable. At present, the main methods used are dry dust collection and wet water washing. The dust collector with good dust collection effect is selected, and the working condition parameters of the dust collector are determined according to the requirements of stone powder content in manufactured sand. However, this method is only applicable to the production of class III manufactured sand. Washing machine-made sand with water is the key technology to produce high-quality machine-made sand, but attention should be paid to water saving and environmental protection.
03. The crushing index value is generally in the range of 20% ~ 25%;
04. Bluestone sand has good adhesion, compression resistance, corrosion resistance, no radiation, long service life, uniform particle size, less needle and flake, reasonable grading and stable quality than natural sand.
2. Where are Bluestone commonly used?
Bluestone is a processed crushed stone. It is also broken by a crusher. The particle size is 5-10mm. It is called "fine stone" in professional terms. It is widely used in decoration foundation engineering.
01. Bluestone concrete is generally used for leveling of building, ground, roof or structural surface, precast reinforced concrete slab, prestressed circular orifice plate, other concrete precast components, reinforced concrete components with thin section (such as thin web beam, gutter, water tank, etc.), as well as dense reinforcement arrangement and small clear distance in the components.
02. According to pebbles and gravels for construction, when the continuous particle size of pebbles is 5-15mm, 5-25mm or the single particle size is 5-10mm, 10-16mm and 10-20mm, they can be called fine stones.
03. The selection of coarse aggregate of general concrete with large particle size shall meet the following requirements:
It shall not be greater than 1 / 4 of the smaller size of the concrete structure section and 3 / 4 of the smaller clear distance of the reinforcement.
For concrete solid slab, the larger particle size shall not be greater than 1 / 2 of the slab thickness and shall not exceed 50mm.
3. What type of sand making machine is recommended?
Bluestone is a flake stone. The grain shape produced by ordinary sand making machine is not ideal and can not meet the requirements for finished sand in higher buildings, mixing plants, high-speed railways and highways. What sand making machine is good for bluestone sand making? It is recommended to select 5x sand making machine equipment, which is developed in combination with the actual situation of domestic sand and stone production. It mainly adopts the working mode of "stone beating stone" and "stone beating iron", integrating various crushing modes, which can produce both stone and sand. The dual-purpose distributor and deep cavity impeller are designed to improve the throughput and high work efficiency, producing 70-585 tons per hour.
01. The green stone is processed into round sand and cube sand, and has the function of stone shaping to meet the requirements of higher engineering for stones.
02. The peripheral guard can be turned up and down to prolong the service life. The hydraulic cover opening device is convenient for maintenance, shorten the shutdown time and improve the efficiency.
03. The combined throwing head only needs to replace the worn part, which can reduce the use cost by 30%.
04. The air flow in the vortex chamber is self circulating, plus pulse dust collector and noise eliminator to realize green and environmental protection sand making.
05. Lubrication mode can be selected. The bearing chamber is of thin oil type and grease type modular design, which can realize overall interchangeability.
4. How much is the price of green stone sand making machine?
How much is the price of green stone sand making machine? Generally speaking, the price difference is relatively large. In addition to the equipment configuration, model and output, the manufacturer selection is also very important.
SMMVIK Machinery! It is cheaper to produce and sell by itself than middlemen. There are strict ex factory quality standards and sufficient goods. Specifically, how much is a bluestone sand making machine? You can consult directly online. A product manager will serve you and help you select scientifically according to the actual needs, as well as introduce other relevant information.
