SU1612016A1 - Device for calendering chips - Google Patents

Abstract

The invention relates to a technique for treating chopped wood raw material and can be used in the pulp and paper industry for treating chips mainly before serving it for cooking. The purpose of the invention is to improve the quality of processing chips. The device for calendering chips consists of a working body 1 in the form of a pair of parallel-mounted drive shafts 2 of counter-rotation, forming between them a working gap 3, and a dispenser made in the form of additional drive shafts 4 of unidirectional rotation with a relief working surface 5 arranged so that The axes are parallel to each other and the axis of the shafts 2 of the working member 1. In this case, the shafts 4 are adjacent to one another by the working surfaces 5 with the formation of grooves 6 for the orientation of the chips when moving along the metering unit along them. The working surfaces 5 of the shaft 4 of the dispenser can be made in the form of annular projections, and the shafts 2 of the working body 1 can have a stepped surface having alternating annular projections and depressions, with the projections of one shaft 2 entering the depressions of the other shaft 2. 2 Cp. f-ly, 5 ill.

Description

 Rig. one

The invention relates to a technique for treating chopped wood raw material and can be used in the pulp and paper industry for treating chips mainly before serving it for cooking.

The aim of the invention is to increase the quality of chip processing.

FIG. 1 is a schematic diagram of a device for calendering 25

Neither the metering device to the working body 1. The working gap 3 between the shafts 2 brought into opposite rotation is set smaller than the thickness of the processed chip particles and is adjusted depending on the required degree of chip reduction during the calendering process.

When compression of the chip particles oriented by fibers across the direction of movement, loosening of the chips occurs, on; in fig. 2 is a view A of FIG. one; The connection between the fibers is formed on the surface, forming a fig. 4 is a view B in FIG. one; in fig. 5 - from a microcrack, which causes the BB to bounce in FIG. 4. Growth of effective chip surface. Making the surface of the work rolls 2 STU The device for calendering foam chips provides for cutting a length consisting of a working body 1 in the form of a splinter into conditional pieces, corresponding to parallel-fixed drive lines, va-vuing the length of the chips of the normal fraction,

The counter-rotating gear 2, forming the Progressors through the working gap 3, is partly between the working gap 3, and the chip chips are fed for further processing, made in the form of auxiliary, for example, cooking.

drive shafts 4 unidirectional ro-device, providing a calender with a relief working surface 5, 20 oriented with fibers across and arranged so that their axes are parallel to the direction of movement of the chips, between them and the shaft of the shafts 2, the working fibers breaks and effective surface of the chip particles. The process of cooking such chips is accelerated, while simultaneously improving the quality of the produced pulp.

Claims (3)

1. A device for calendering of chips, including a chip dispenser and a working body in the form of a pair of parallel fastening alternating annular protrusions 7 and ash drive shafts of the opposing cavity 8, with the protrusions 7 of one shaft 2 pups forming one in the valleys 8 of the other shaft 2. reception clearance, characterized by The device works as follows. We believe that, in order to improve the quality of the chips to be processed, for example, the processing of chips, the dispenser is designed as a sorting through the thickness of a large set adjacent to each other, and a fraction of the chips is fed to the initial one-directional drive shafts .m ui rtgzh ppch top. Glazing rotation with a relief working surface, forming between themselves grooves for orientation of chips along them. 2. The device according to claim 1, characterized by Q in that each shaft of the dispenser is made with a stepped working surface with alternating annular projections and depressions, with the projections of each dispenser shaft entering the depressions of adjacent shafts, and the working surface of the annular projections is made of relief. 3. A device according to claim I, characterized in that on the working surface of one of the shafts of the working body there are no annular depressions with a constant step, and on the working surface of the second shaft they are tilting on the protrusions of the adjacent 50 annular shafts 4 in the process of transporting the depressions of the first shaft. Organ 1. In this case, the shafts 4 are adjacent to one another by the working surfaces 5 with the formation of grooves 6 for the orientation of the chips as they move along the metering device along them. The working surfaces 5 of the shaft 4 of the dispenser can be made in the form of annular protrusions, and the shafts 2 of the working body 1 can have a stepped surface having a dispenser section where the chip particles moving along the dispenser of the working surface 5 of the rotating shafts 4 of the dispenser move the working surface 5 one shaft 4 to the next shaft 4 through the grooves 6 formed by them. At the same time, the chip particles are oriented along the grooves 6, i.e. they are arranged across the direction of movement of the fibers, preserving and / or acquiring such an orientation by the time the working body 1 is fed into the working gap 3. Performing the working surfaces 5 of the shafts 4 of the dispenser in the form of annular projections increases efficiency orientation of chip particles due25 did / i UiZ.Z View 5 at filB.  Rig.Z dv  722 ar.5 eight