Specific gravity process automatic screening equipment

Abstract

The invention relates to a papermaking pulping system, in particular to pulp rinsing and pulp screening, automatic separation of light and heavy impurities and centralized treatment, the method adopted is to set a relatively large integrated water tank, and the water tanks are respectively equipped with partition boards , divide the first pool of pulp mixing pool, the second pool of light and heavy impurity separation pool, the third pool of pulp dehydration area, there is a rotating blade cylinder under the middle of the first pool and the second pool, and a water pump is used to move the third pool The shed white water is pumped into the first pool, and the first pool is quickly raised from the supplementary white water level of the third pool. Under the action of pressure difference, it flows through the rotor blades to separate heavy impurities and light impurities. The light and heavy impurities are deposited in the heavy impurities. In the collection area, the lighter impurities are accelerated to float above the second pool under the action of explosive gas, and the pulp is screened through the louver slot screen and flows into the third pool from the pulp flow regulating plate for dehydration to obtain finished pulp, and the shed white water is pumped again. into the first pool, this process has a simple structure and is widely used in paper pulping systems.

Description

[0001] manual technical field [0002] The invention relates to papermaking and pulping, in particular to impurity separation treatment and pulp screening in a pulping system. technical background [0003] At present, pulping is to drive the impeller of the pulping machine through a high-power motor to crush and hydraulically decompose the waste paper, and the paper fibers after crushing and decomposition, the smaller light impurities and the smaller heavy impurities after crushing, are set in the system. The sieve plate sieve hole at the bottom of the pulp machine is pumped out by a high-power pulp pump connected under the sieve plate, so the pulp contains a lot of light and heavy impurities. In order to screen the pulp that meets the production requirements, a high-power sand remover is necessary. The fiber separator, refiner, pressure screen and jumping screen, except for the jumping screen, the motors used in the other four equipment are all above 150 kW, which consumes ...

AI Technical Summary

Problems solved by technology

[0003] At present, pulping is to drive the impeller of the pulping machine through a high-power motor to crush and hydrolyze the waste paper. The paper fibers after crushing and decomposition, the smaller light impurities and the smaller heavy impurities after crushing, are set in the system. The sieve hole of the sieve plate at the bottom of the pulp machine is pumped out by a high-power pulp pump connected under the sieve plate, so the pulp contains a lot of light and heavy impurities. In order to screen out the pulp that meets the production requirements, a high-power sand remover is necessary. The fiber separator, refiner, pressure screen and jumping screen, except for the jumping screen, the motors used in the other four equipment are all above 150 kilowatts, which consumes a lot of energy and affects the recycling of light impurities. It is also not conducive to environmental protection. Protect

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