Mechanism natural sand gradation adjustment machine and production method of natural sand

Abstract

The invention relates to a machine-manufactured natural sand grading adjustment machine and a manufacturing method of natural sand. The machine-manufactured natural sand grading adjustment machine comprises a power source, a second guide lining plate, a feeding inlet wear-resistant ring, a feeding inlet end lining plate, a feeding inlet shell, large rolling rings, stepping type counterattack hoppers, a third guide lining plate, a fourth guide lining plate and a sand dust cover, wherein the large rolling rings are respectively sheathed at the two end parts of a roller and are positioned on the power source; the sand dust cover is sheathed at one end of the roller; the feeding inlet wear-resistant ring, the feeding inlet end lining plate and the feeding inlet shell form a feeding inlet; three rows or multiple rows of stepping type counterattack hoppers are in one group, and are distributed on the inner wall of the roller by adopting stepping structures; each row of stepping type counterattach hoppers in the same group are distributed in a staggering manner; the second guide lining plate, the first guide lining plate, the third guide lining plate and the fourth guide lining plate are respectively distributed at the two ends of multiple groups of stepping hoppers.

Description

technical field [0001] The invention relates to a machine-made natural sand grading adjustment machine and a production method of natural sand, which can not only make machine-made sand into natural sand without overgrinding phenomenon, but also can be applied to dry sand making, which belongs to machine-made sand manufacturing field. Background technique [0002] Existing sand making machines include impact crushers, impact crushers, double-roll mills, rod mills, hammer mills, ultra-fine crushing cone machines and so on. Except for the rod mill that can produce machine-made sand with a relatively round and beautiful particle size and a relatively small fineness modulus, the above machines can only produce machine-made sand with a fineness modulus of about 3.6, and in the finished product The smaller the fineness modulus of machine-made sand, the higher the needle-like shape, which leads to a great decline in the overall product quality of machine-made sand; while the rod m...

AI Technical Summary

Problems solved by technology

Except for the rod mill that can produce machine-made sand with a relatively round and beautiful particle size and a relatively small fineness modulus, the above machines can only produce machine-made sand with a fineness modulus of about 3.6, and in the finished product The smaller the fineness modulus of machine-made sand, the higher the needle-like shape, which leads to a great decline in the overall product quality of machine-made sand; while the rod mill is added with wear-resistant rods, which are sticky during the rolling process of the cylinder. The rods also roll repeatedly in one direction (the rods can only do synchronous rolling motion in the middle and lower part of the cylinder wall with the rotation of the cylinder wall), the machine-made sand in the cylinder is crushed between the rods, although the rod mill can The machine-made sand with relatively round and beautiful particle size and relatively small fineness modulus is produced, but firstly, its own production capacity is low; secondly, a large amount of over-grinding occurs, resulting in high waste powder in the finished product and polluting environment, and cause waste of raw materials; the use of three rod mills in dry sand making is relatively immature, and the effect is not good

Images