A kind of shavings sorting device and sorting method thereof

Abstract

The invention discloses a wood shavings sorting device. The wood shavings sorting device comprises a negative pressure fan, a screening assembly and a hammering and shaving assembly installed below the screening assembly; a discharge channel of the hammering and shaving assembly is connected with the negative pressure fan (1) through an air draft elbow; the screening assembly comprises a supporting frame, a material separating assembly, a material separating box shell installed on the supporting frame and a discharge hopper installed at the upper end of the material separating box shell, the material separating box shell is composed of an outer material separating box shell and an inner material separating box shell which are formed integrally, a discharging and screening channel is formed between the outer material separating box shell and the inner material separating box shell, an opening in the upper end of the inner material separating box shell is communicated with the outlet end of the discharge hopper, and the lower end of the inner material separating box shell is closed and connected with the hammering and shaving assembly through a flange. The invention discloses a sorting method of the wood shavings sorting device. In the sorting method, first-time screening, second-time sorting and third-time grinding and sorting are carried out mainly, various oversized and huge materials and impurities can be effectively separated by the wood shavings sorting device, and the material use ratio is increased.

Description

technical field [0001] The invention belongs to the technical field of particle board production and processing, and in particular relates to a particle sorting device and a sorting method thereof. Background technique [0002] In the process of producing particleboard, according to different uses, the shavings produced should be sorted. The purpose of shavings sorting, due to various reasons, in the process of manufacturing shavings, in addition to obtaining qualified shavings, there will always be a part of oversized shavings and wood powder, and the shavings are often accompanied by high-quality stones and bricks. , iron blocks and other oversized or overweight sundries, and among the qualified shavings, their sizes and specifications are also different. In order to make the glue mix evenly and save adhesive, or to produce particleboards with different structures and produce high-quality shavings, it is necessary to Qualified shavings are re-sorted according to size spec...

AI Technical Summary

Problems solved by technology

In the traditional shavings sorting process, the mixed shavings produced in the previous section are mechanically screened, and the shavings smaller than the mesh of the sieve pass through the sieve by using the vibration or swing of the screen in the horizontal or vertical direction, and relying on the gravity and inertia of the shavings. The shavings larger than the sieve mesh stay on the sieve to achieve the purpose of grading the shavings. After sieving, the shavings are divided into oversized shavings, qualified core shavings, fine surface shavings, and wood powder. Then it is mixed with the shavings produced in the previous section and entered into the mechanical shaker screen. Although the sorting speed is relatively fast, the sorting effect is relatively poor, the classification is not obvious, and the dust pollution is serious. When the material is crushed inside the cavity, it will form a strong crushing impact or grinding, which will cause damage to the hammer planer parts in the hammer planer, thus affecting the screening effect

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