SU1258915A1 - Apparatus for treating fibrous mass with agent - Google Patents

Description

one

The invention relates to process equipment for the chemical treatment of pulp and can be used in pulp and paper industry.

The purpose of the invention is to increase the reliability and intensify the process.

Fig, 1 shows a device, a longitudinal section; Fig. 2 shows an embodiment of the device.

The device consists of a housing 1 with inlet pipes 2 and a pulp outlet 3, a reagent supply pipe 4 connected to a distribution pipe 5, which is fixed and coaxially installed in the housing 1, the pipe surface being made permeable and being interconnected pipe sections 6 variable diameter, and the permeable surface is made of porous metal, such as porous titanium.

The device works as follows.

The fibrous mass enters the device through the pipe 2, passes inside the body in the form of an annular layer and leaves through the pipe 3 from /

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pulp water. At the same time, in places of constriction, the flow is compressed, and in places of expansion, its swelling and treatment with reagent 5 occurs when 6 pipe sections of porous metal pass. The reagent through the pipe 4 enters the distribution pipe 5 and through sections of 6 pipes, made of porous metal, enters the treatment zones of the mass by the reagent. The use of porous metal makes it possible to significantly simplify the manufacture of the device and increase its reliability in operation, since the possibility of penetration of the fiber into the distribution pipe and clogging of the reagent supply holes with fiber is completely eliminated. The alternation of porous and solid metals, the size of the treatment zones of the fibrous mass with the reagent and the specific dimensions of the device are determined by the type of the fibrous mass and the reagent, the processing conditions and the rate of flow of the reactions. The use of the proposed device also makes it possible to intensify the processing process and reduce the consumption of the reagent due to the more intensive interaction of the fibrous mass and the reagent.

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Editor A. Kozoriz

1

Compiled by J.Kl pin Tehred I.Popovich

Order 5093/29 Circulation 355 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

KopipeKTop S.Shekmar

Claims (2)

1. DEVICE FOR PROCESSING FIBROUS MASS WITH REAGENT, containing a housing with nozzles for supplying and discharging fibrous mass, a distribution pipe coaxially mounted in the housing, the surface of which is made permeable to reagent, characterized in that, in order to increase the reliability in operation and intensify the processing process , the distribution pipe is made in the form of interconnected pipe segments of variable diameter, and its permeable surface is made of porous metal. 2. The device according to π. 1, the fact that the permeable surface of the distribution pipe is made of porous titanium. I ke sl 00 ί © Joint venture Figure 1