SU66200A1 - Installation for cooking (trapping) fibrous materials of plant origin - Google Patents

Description

Until recently, the process of bleaching fabric was a backward part of the chemical techiology of fibrous substances, but in recent years, 3 of this process of ps VILIS technology has shifted. These shifts are characterized by the appearance of new sposses, including a peroxide method that quickly gained its right to itself.

In the old alkaline process, improvements have been made that have changed its effectiveness. The development of a continuous, accelerated process without high pressure application allowed the entire process to be carried out continuously. Despite the great advantages of the unbroken alkaline method of bleaching, the specific features of its application are put forward as important; the prerequisites of its economic efficiency are large enterprise size and relative uniformity of the bleached assortment. Where this condition is not present, there will be more eonomichesy and bleaching with boiling in coggles. Whitening of fabrics from low cotton sorts is also easier with the inclusion of fatty boilers in pressure boilers.

Thus, cooking facilities should be kept in the equipment system of the finishing factories.

Cooking devices are already known, the contractor envisages the implementation of the fabric stripping process, which provides both high technological and economic indicators. These requirements fully satisfy the technological process that can be built at the present time on the Tissa plant. However, these installations, with a number of advantages, have the following significant and disadvantage aap ;;

1) the large area occupied by the cooking unit, due to the presence of bottom X in it at each digester;

2) a large installation height due to the presence of a boiler in the boiler, which has a height of about 1,000 dm and is installed on a foundation with a height of 600-700 M1m;

3) increased boiler modulus due to filling during cooking both the bottom of the nozzle (pt) and part of the auxiliary boiler included in the bottom cooking process;

4) relative complexity of KOIMmotions.

A plant for planting fibrous materials (see the proposed drawing) consisting of a vertical cooking chamber 19, a buffer vessel 20, a circulating pump 21, a preheater 22, a condensing pot 23, an air pump 24 and a communication system with valves is offered. 1-18. A distinctive feature of the proposed ycTion is that the buffer vessel 20 is made as a separate stand, its tank, the bottom of the “OTOpioro” is located no higher than the bottom of the COTLE 19 and which is connected to both the BepiXOM and the bottom of the latter.

Such an installation, which allowed to reproduce the technological process, which is close to a single phase method of installing Tios, has the following advantages over the latter:

1. Unallocated auxiliary equipment reduces the space required to install the boiler, reducing them to the area occupied by

other system & electric cooking boilers.

2. The installation of the buffer requires that its alkaline part be located below the boiler; however, the entire air part during these processes may be located above the bottom of the boiler and, for these reasons, the boiler must be installed in such a way that its bottom is raised total lisch on 450 - 500 mm, i.e., the boiler can be installed in low rooms.

3. The buffer in the cooking process works with partial filling, and 3TQ has an almost negligible effect on the increase in the cooking module.

4.CxeMia communications offer our boiler much easier than the Tissa unit.

5. Any vertical cooker can be modernized according to the proposed principle.

The basic operations and the method of their implementation on the proposed installation are listed below: follow the diagram.

J "

Name of operations

Bookmark and Press 18

-91 - //2022,10,19,4,20

Fill Cooking Bottom Cooking Horseback

Hot rinsing and collection of the solution utilized on the workpiece

Cold washing and collecting on the tab of recyclable wash water

Cold flushing and discharging water down the drain

Open gate numbering

and working equipment

in the direction of flow

...18

; 20, 15, 24

18,21,22,9,3,19,5,20,.

;. 14,12,23 20,21,22,9,3,19,5,20,. ..; 14,12,23; 14,12,23 4,20,21,22,9,1,19,4, .. 4,20,21,22,9,1,19,4, ..; 11,22,13

17,21,22.9,3,19,6 16,21,22,9,3,19,7 16,21,22,9,1,19,2

The laying of the goods into the boiler is carried out after the idle time treatment: it is in the last washing machine in front of the boiler with hot industrial water recycled from previous cooking. This measure provides significant heat savings and somewhat reduces the consumption of caustic soda.

In the process of laying, the working solution supplied from the stockpiling is supplied to the pump 21 and supplied to them by the preheater 22 to the stacker. The liquor supplied for laying the fabric must, in order to avoid the product slipping, flow to a considerable part under the false bottom into the lower part of the boiler 19, and then be removed to the buffer 20. Buffer is supplied. glass, on which the varilshchik ensures that the level of the liquid does not exceed the control mark corresponding to the location and the connected pipe from the boiler to the buffer. The excess fluid in the special pruct for recirculation of paiCTBOipa is sent back to the preparation tank. The amount of ipacTSopa per piling and the amount of recirculating solution is controlled independently. When laying the fabric, the removal of liquid from the boiler is ensured by the inclusion of: into the operation of the air vykuumnasos 24, while at the same time there will be a seal of the goods embedded in the boiler. After the boiler bed has been laid, the working solution is pumped out via the recirculation pipeline to the storage tank, the product is loaded with a float and the boiler lid is closed.

The cooking solution for filling the boiler is supplied by the pump 21 through the heater 22 which is switched on, is injected Down the boiler and, displaced by B10, the spear located in the boiler lid fills the latter. At the end of the boiler filling in the buffer 20, any (necessary and sufficient) level of the solution can be set.

During the bottom cooking process, the .20 buffer serves as a reservoir for

 removal of air entrained by the flow through the fabric (bottom to top). In this case, the freezing of air in the air is filled with a supply of cooking solution from the buffer. At the same time, the buffer perceives the difference and the change in the volume of the varnish liquid and the capacity of the boiler from the thermal effect.

The cooking process in the top of the proposed scheme is characterized by the fact that the buffer 20 remains included in the circulation system, also ensuring the perception of the difference in changes in the volume of cooking liquid and the capacity of the boiler.

The possibility of carrying out the raskolodki process is envisaged by the use of a heater with a free suspension of the pipe system, which allows for an independent change in the length of the body and the heating pipes.

Washing the fabric with hot water collected during the frustration process is carried out upwards when the boiler is filled with liquid 01M1. Simultaneously with the entry of hot water into the boiler, the spent cooking liquor, which is IB in quantity, is expelled from above. necessary for the preparation of the working solution for the next cooking, is collected in the preparation tank. After recycling the cooking liquid to the preparation of the working solution, the remaining spent cooking solution enters the tank feeding the last washer before being put into the boiler.

After the total amount of hot water has been consumed, T: with pro: wash with cold water in the same direction (bottom to top). When the recycling tank is filled with water, the fabric is rinsed with cold water in the opposite direction (top to bottom).

Rinsing from top to bottom is carried out until the final cooling down and washing of the upper layers of fabric while simultaneously exchanging water into the sewer system. The process ends by shutting off the water supply and discharging the liquid from the boiler to the sewer. The latter operation is performed with the boiler lid open or the air valve open.

Subject invention

A plant for cooking (broiling) fibrous materials of plant origin, consisting of a vertical pulp debris.

Preheater, DIrkuLnOn and air dasos of the buffer vessel associated with the hundredth and pointed pumps, characterized in that the buffer vessel is designed as a separate standing tank, the bottom of the KOTOpioro is located not above the bottom of the boiler 19, and which is connected as with top, so II with the bottom of the last.

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