Three-shelling four-reduction two-sizing high-efficient low-consumption simplified mill diagram

Abstract

The invention simplifies a prior milling process with 4-belt, 8-center, 2-slag and 2-tail to the milling process with 3-belt, 4-center and 2-slag by increasing 2 impact mills in a front section of a reduction system, using one impact mill to replace a four-belt roller mill and all the bran finishers and using 3 to 4 impact mills to replace a roller mill with 4-center and more and a tail roll grinding system. The invention can reduce the investment on devices of a milling plant of a flour production line and the civil construction by 20 percent to 30 percent, reduce the power consumption per ton flour by about 5 percent, reduce the operation cost of the production line by about 5 percent, greatly simplify the operation of the devices and the production management, simultaneously improve the good flour yield of the front section of the flour production line by about 10 percent and improve the total flour extraction rate of the flour production line by 1 percent to 5 percent, thus increasing daily economic benefits of a flour mill due to the consumption reduction.

Description

technical field [0001] The invention provides a simplified powder path with 3 skins, 4 hearts and 2 slags with high efficiency and low consumption, which is suitable for a production line for grinding wheat into flour. Background technique [0002] Use equipment such as grinding, sieving, and powder cleaning to separate the cleaned endosperm from the cortex and germ, and grind the endosperm into powder or fine particles, which are directly packaged or processed by powder mixing to make various wheat flour. The whole process of finished flour and by-products of different grades and uses is called wheat flour milling process, referred to as powder road. In my country's flour industry, the number of grinding passes of milling machines is commonly used to indicate the powder path. For example, 4 skins, 8 hearts, 2 slags and 2 tails means that 4 skin mills, 8 heart mills, 2 slag mills and 2 tail mills are used in the powder road. In my country's flour industry, the 1st and 2nd ...

AI Technical Summary

Problems solved by technology

But even if the grinding roller is made into a convex shape that meets the requirements, because the working conditions are ever-changing, it is impossible to guarantee that the entire grinding roller can effectively grind the material

Moreover, because the smooth roller is in a convex shape, the process effect of grinding larger particle materials with uniform particle size is better, but the process effect of grinding fine particle materials with uniform particle size and mixed materials mixed with fine particles is much worse.

In addition, when the heating phenomenon of smooth roller grinding is serious, the high temperature will lead to the denaturation of flour protein, so the flour extraction rate of each heart mill in the prior art is generally not more than 30%.

In order to make up for the shortcomings of the smooth roller mill in the prior art, an impact loosening machine is installed behind the mill, although this can make each process (a roller mill grinding and an impact loosening machine) The total flour extraction rate is significantly improved, but the side effects of high energy consumption and improper use that will lead to a decrease in flour quality cannot be ignored.