Environment-friendly and efficient coal grinding device

Abstract

The invention discloses an environment-friendly and efficient coal grinding device. The environment-friendly and efficient coal grinding device comprises a shell, a falling inlet, cutting rollers, crushing blades, a screening plate, a first discharging end, a sending plate, a second discharging end, a cylinder, a rotary-type crushing mechanism, a vibrating screen, a feeding pipe, an elastic pipe,a hard compression spring, a pre-crushing cylinder and a feeding hopper, a vibration motor is arranged on the left side of the pre-crushing cylinder, and a plurality of crushing devices are evenly arranged on the positions, in the pre-crushing cylinder, on an output shaft of the motor. Raw materials are pre-crushed through the crushing devices in the pre-crushing cylinder, and large blocks of caked raw materials are removed; the pre-crushing cylinder is vibrated through the vibrating motor, and thus falling can be quicker; the coal blocks are fully crushed through the crushing blades and the cutting rollers, the crushing effect is good, and the efficiency is high; and the screening function is achieved, the unqualified coal blocks can also continue being further crushed and screened, thusthe coal block processing efficiency is improved, the moisture can further be discharged, and dust is collected.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to an environmentally friendly and efficient coal grinding device. Background technique [0002] The coal grinding process is the process in which coal is broken and its surface area is continuously increased. To add new surface area, the bonding forces between solid molecules must be overcome, thus expending energy. Coal is ground into pulverized coal in a coal mill, mainly through crushing, crushing and grinding. Among them, the crushing process consumes the least energy. The grinding process is the most energy-intensive. All kinds of coal mills have the above two or three methods in the pulverization process, but which one is the main one depends on the type of coal mill. [0003] The existing coal mill does not have a pre-crushing function, so the crushing effect is often not good, and it needs to be crushed many times, which increases the overall cost, and the effici...

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Problems solved by technology

[0003] The existing coal mill does not have a pre-crushing function, so the crushing effect is often not good, and it needs to be crushed many times, which increases the overall cost, and the efficiency is also very low. It contains some magnetic substances, and the function of coal grinding is mainly to grind the coal into powder for subsequent use. The existing coal mills often have the function of screening, which needs to be ground for screening, and then the unused Qualified coal is then put into the coal mill for crushing, which greatly reduces the efficiency

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