Sera DA Boden - Dissolving station for copper cyanide 디졸브 스테이션

Dissolving station for copper cyanide

The dosing system was designed according to drawing no. A10690 for the preparation of calcium cyanide and copper cyanide solution.

The tank has a volume of approx. 1170 litres and is filled with water via an angle seat valve and with beads/scales/flakes via a feed screw. The dilution water is filled via a solenoid valve and a downstream angle-seat valve for volume adjustment. A spray nozzle in the aeration and deaeration dome prevents vapours from escaping when filling the tank.

The water supply is shut off by a ball valve and the flow rate is adjusted by an angle seat valve. The extraction is switched on or off via the control unit.

The feed screw first conveys the dry material into a two-stage shredder. From there, the dry material enters the container. The quantity of dry material conveyed is regulated via a slide valve on the feed screw. A suction device is mounted on the hopper of the feed screw. The suction device is equipped with a lamellar rubber curtain to prevent direct contact with the dry material. The hopper is fitted with a protective grid. A further suction device is located on the container. The extracted vapours from the two extraction devices are brought together in an absorption vessel via hose lines.

When filling the hopper of the feed screw and loading the container with dry material, it is necessary for both extraction devices to be switched on.

The absorption vessel must be placed and mounted in a suitable position on site using a frame for wall mounting. It must be ensured that the hose lines are supported on site using suitable means if necessary. Kinking of the hose lines must be prevented at all costs to ensure that the vapours are properly conducted into the absorption vessel. The vent connection on the absorption vessel must be connected accordingly on site.

The various fill levels in the container (DRY + EMPTY / MAX-MAX) are detected by fill level limit switches. The level limit switch for DRY RUN + TANK EMPTY is height-adjustable. The fill level in the container can also be checked on the visual fill level indicator. The temperature in the container is displayed via a bimetal thermometer. The container is equipped with an electric agitator for even mixing of the solution. The finished solution is removed or the container emptied via a ball valve at the bottom of the container jacket.

The absorption vessel is emptied into the container via a hose line. It is important to ensure that the washing liquid in the absorption vessel is changed at regular intervals. The dosing system is equipped with a control unit.

The pipework consists of the following components

- Ball valve for end shut-off Filling

- Solenoid valve for filling shut-off

- Angle seat valve for water dosing

- Ball valve for water supply Spray ball

- Solenoid valve for shutting off spray ball

- Angle seat valve for water dosing Spray ball

- Ball valve for removal

- Ball valve for emptying

- Ball valve for emptying when cleaning the supply hopper and the feed screw

It was never installed and never put into operation.

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