CN2427551Y

CN2427551Y - Vortex flow type dregs removing from paper pulp

Info

Publication number: CN2427551Y
Application number: CN 00209553
Authority: CN
Inventors: 吴建华; 杜国贞; 齐明芹; 严福茹
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-21
Filing date: 2000-04-21
Publication date: 2001-04-25
Anticipated expiration: 2010-04-21

Abstract

The utility model relates to a vortex flow type pulp dreg remover composed of a dreg removing separator main body, a light impurity separator, a light impurity collecting pipe, etc., wherein, the light impurity separator is arranged in a cavity of the dreg removing separator main body, and light impurities are sucked out by the light impurity collecting pipe. The utility model has favorable effect on separating heavy and light impurities, and after actual test, the separation rate of heavy impurities can reach 98 percents, while the separation rate of light impurities can reach 90 percents, so that the utility model solves the problem that a common impurity separating device has low efficiency in separating light impurities.

Description

A kind of spiral-flow type paper pulp scummer

The utility model relates to a kind of fluid separation device, particularly a kind of paper grade pulp scummer.

The widely used fluid scummer of paper industry is the spiral-flow type scummer at present, the paper pulp that contains impurity enters the disengagement chamber of scummer from tangential direction, makes swirling motion downwards along the chamber wall, the layering in the chamber of the material of different quality, heavy seeds is discharged downwards, very starches from outflow suitable for reading.Along with industrial expansion, the gummed paper in the regenerated paper pulp, plastics cover impurity such as mould and roll up, and separate to impurity and have brought difficulty.Chinese patent discloses a kind of trash eliminator No. 85103594, and it is to have increased the whirlpool air deflector that disappears in disengagement chamber, makes heavy seeds flow to the bottom, and light impurity floats on central upper, thereby reaches the purpose that improves separating effect.But this has increased the flow resistance of liquid air deflector in cavity, has reduced the sinking speed of heavy seeds, and air deflector makes the cyclone separator arrangement complexity, makes difficulty, and simultaneously, the effect of its removing impurities is also not ideal enough.In addition, some technical staff have also developed other several spiral-flow type trash eliminator, but through actual measurement, its separating effect, the particularly separating effect to light impurity still are not satisfactory.

The purpose of this utility model provides a kind of simple in structure, easy to manufacture, fluid scummer that can separate weight impurity effectively.

The purpose of this utility model is realized by following technology side:

A kind of spiral-flow type paper pulp scummer, it comprises stock inlet, the heavy seeds outlet, the slagging-off separator main body, wherein, the slagging-off separator main body is made up of cylinder and conic tube two parts, in slagging-off separator main body chamber, a light impurity separator is arranged, it is a long cylinder cavity body, slagging-off separator main body upper end is stretched out in its upper end, in the cylinder part of its lower end in the slagging-off separator main body, grout outlet is arranged at the top at the light impurity separator, and its end opening is the mixed pulp inlet, and a coaxial light impurity trap tube is arranged in the cavity of light impurity separator, its upper end is the light impurity outlet, and the lower end is the light impurity suction inlet.

Above-mentioned scummer, the lower end suction inlet of described light impurity trap tube is a bell mouth shape, uniform filter pulp aperture on tube wall, its percent opening is 50%, the aperture is 1.5-3.5MM.

Above-mentioned scummer, the gap of described light impurity trap tube external diameter and light impurity separator inwall is 10-50MM.

Above-mentioned scummer, the lower end of described light impurity separator are back taper, and its opening angle is the 30-45 degree, and the cylindrical shell height of light impurity separator is 600-800MM.

Above-mentioned scummer, the bell-mouthed angle of described light impurity trap tube is the 10-60 degree, highly is 50-100MM.

After adopting said structure, light impurity in the paper pulp collects in the central area of light impurity separator and enters the light impurity trap tube, and good slurry flows out from capturing the tube wall aperture, improved the discharge rate of light impurity greatly, after tested, the utility model can make the heavy seeds rate of removing reach 98%, and the light impurity rate of removing reaches 90%.The utility model also has advantages such as simple in structure, easy to manufacture, cheap.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a structural representation of the present utility model.

The slagging-off separator main body that shows among the figure 1 is made of two parts, and its top is a cylinder 9, and the bottom is a conic tube 7, and the suitable for reading and cylinder 9 of conic tube 7 joins, and the end opening of conic tube is heavy seeds outlet 8.Upper side at cylinder has stock inlet 4, and stock inlet 4 is tangent with the side of cylinder 9.In the top cylinder body 9 of slagging-off separator main body 1, a light impurity separator 5 has been installed, it is coaxial with the slagging-off separator main body, and be oval tubular, the upper end of slagging-off separator main body 1 is stretched out in its upper end, the lower end is within cylinder 9, one good slurry grout outlet 2 is arranged at its top, and its end opening is a mixed pulp inlet 6.In light impurity separator 5 inside a light impurity trap tube 10 is housed also, light impurity trap tube 10 is that a lower end is bell-mouthed light-wall pipe, and horn mouth is a light impurity suction inlet 3, has a plurality of apertures on the tube wall around the mouth of pipe, percent opening is 50%, aperture 1.5-3.5MM.The suitable for reading of light impurity trap tube is light impurity outlet 11, and in order to reach the effect of good removing impurities, should select the external diameter of light impurity trap tube and the gap between the light impurity separator inwall is 10-50MM.

The course of work of the present utility model is as follows: the tangential direction along slagging-off separator main body 1 enters in the cavity of main body paper pulp from stock inlet 4, in cavity, rotate downwards, the layering of various impurity owing to the difference of suffered centrifugal force, heavy impurity moves downward, discharge from exporting 8 at last, the mixed pulp that contains light impurity moves upward, and enter light impurity separator 5, mixed pulp is rotated further in the chamber of light impurity separator 5, light impurity focuses on core gradually and moves upward, enter light impurity trap tube 10, owing to have a plurality of apertures on the tube wall around this trap tube, good slurry will outwards flow out from aperture, and impurity is stayed in the trap tube, and last impurity is discharged from the light impurity outlet 11 of trap tube upper end.This design has solved the bulk light impurity well and has separated difficult problem.Through the reality test, the heavy seeds rate of removing of the present utility model is 98%, and the light impurity rate of removing is 90%.

Below be the scummer size that per minute is handled 520 liters of paper pulp:

Slagging-off separator main body internal diameter is 160MM, and cylinder 9 highly is 250-300MM, and the conic tube height is 600MM, good slurry outlet diameter 50MM, light impurity outlet diameter 21MM, light impurity separator mixed pulp inlet diameter 50MM, light impurity separator internal diameter 75MM highly is 800MM.

Claims

1. spiral-flow type paper pulp scummer, it comprises stock inlet [4], heavy seeds outlet [8], slagging-off separator main body [1], slagging-off separator main body [1] is made up of cylinder [9] and conic tube [7] two parts, it is characterized in that: in slagging-off separator main body [1] chamber, a light impurity separator [5] is arranged, it is an oval tubular cavity body, slagging-off separator main body upper end is stretched out in its upper end, its lower end is in cylinder [9], on the top of light impurity separator [5] grout outlet [2] is arranged, its end opening is a mixed pulp inlet [6], one coaxial light impurity trap tube [10] is arranged in the cavity of light impurity separator [5], its upper end is light impurity outlet [11], and the lower end is light impurity suction inlet [3].

2. spiral-flow type paper pulp scummer according to claim 1 is characterized in that: the lower end suction inlet of described light impurity trap tube [10] is a bell mouth shape, uniform filter pulp aperture on tube wall, and its percent opening is 50%, aperture 1.5-3.5MM.

3. spiral-flow type paper pulp scummer according to claim 2 is characterized in that: the gap between the inwall of the external diameter of described light impurity trap tube [10] and light impurity separator [5] is 10-50MM.

4. spiral-flow type paper pulp scummer according to claim 3 is characterized in that: the lower end of described light impurity separator [5] is the back taper opening, and its opening angle is the 30-45 degree, and the cylindrical shell height of light impurity separator is 600-800MM.

5. spiral-flow type paper pulp scummer according to claim 4 is characterized in that: the horn mouth angle of described light impurity trap tube [10] is the 10-60 degree, and it highly is 50-100MM.