SU977374A1 - Method of washing containers in sealed chamber - Google Patents

Description

(.54) METHOD FOR WASHING TARE IN HERMETIC

The invention relates to mechanical engineering and can be used for cleaning products, such as containers from technological contaminants of oils, emulsions and other non-chemical inclusions present on cleaned surfaces, when being cleaned with water.

There is a known method of washing containers by supplying a washing liquid with heated steam and moving the container under the action of its own weight until it contacts with the streams of liquid C

However, the high speed and cavitation of the liquid do not allow for a good washing of the container due to the presence of AIR air compression zones when the container is moved down with the neck, which prevents the inner walls of the container from being wetted with liquid and weakens the sink.

There is a method of washing containers in a sealed chamber, providing for filling the chamber with a washing liquid to form above its surface. free space and mixing of liquid layers by its rotation. Liquid rinsing the product due to enhanced circulation. CAMERA

while it is continuously heated 2.

The disadvantages of this method are poor-quality cleaning of the products and mechanical mixing of the fluid layers in one direction.

The purpose of the invention is to improve the quality of washing and to provide better mixing of the layers of washing liquid.

ten

This goal is achieved in that according to the method of washing containers in a sealed chamber, which provides for filling the chamber with a washing liquid to form a free space above its surface and mixing liquid layers by rotating it, a vacuum is created in the chamber formed above the washing liquid.

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The method is carried out as follows.

Continuously heated water is fed to the sealed chamber to a temperature of 50-70 ° C with the formation of free space above the surface of the water. Thereafter, the container is used to load containers into the chamber intended for the technological purification from oils, emulsions,

Claims (1)

30 sand, dirt and other particles fixed on the surface of the container in a non-chemical way. The loading of the container into the hermetic chamber is done through the open lid of the chamber. The washing liquid is rotated in the chamber together with the container immersed in it using known mechanisms, while a vacuum is created in the chamber in a volume free of water above the washing liquid. Air flows into the vacuum zone), which is contained in the washing liquid layers. These air streams drive water, pick up oil droplets, mechanical inclusions, flakes, irregularly shaped solids and take them out onto the surface of the washing liquid. Simultaneously with the suspension of suspended particles on the surface, water is mixed in the direction of formation of a vacuum. Thus, the rotational motion of water and its vertical mixing due to the presence of air in heated water takes place. Owing to the friction of the moving water on the surface of the container, a detachable flow around the irregularities on the surface of the container and its removal is formed. Due to the rotation of the washing liquid, the particles pushed onto its surface are pressed by centrifugal forces to the walls of the chamber and removed through the drain pipes, which are located at the level of the upper water layer. Depending on the mechanical properties of the products being cleaned, their material, the degree of contamination of the surface to be cleaned, a vacuum discharge value of 0.05-10 MPa is prescribed in the chamber above the washing liquid and thereby regulate the speed and duration of the beater. If necessary, vacuum discharge is created in the pipes for draining the upper layer of liquid and particles on its surface. Simultaneously with the removal of the upper layer of washing liquid, automatic refilling of the heated water is carried out to maintain a constant level. The washing process of the container is carried out until the washing liquid and the containers or articles immersed in it are clean, i.e., until the particles that have emerged on the surface of the water are completely removed. After the completion of the washing process, monitoring the purity of the washing liquid and the container, the vacuum is turned off, the top cover of the sealed chamber is opened and the washed container is removed in a known manner and device. The washing process is carried out automatically using a predetermined program without the use of detergent chemicals. i The proposed method of washing containers (products) allows improving the quality of washing, ensures the mixing of layers of washing liquid in different directions and speeds up the cleaning of products from various types of process contaminants. The annual economic effect is achieved by improving the quality of washing containers and reducing the production cycle. The invention of the method of washing containers in a sealed chamber, providing for filling the chamber with a washing liquid: forming free space above its surface and mixing layers of liquid by rotating it, characterized in that, in order to improve the quality of washing and ensure better mixing of layers of washing liquid, in the space formed above the washing liquid, a vacuum is created. Sources of information taken into account in the examination 1. The author's certificate of the USSR 549417, cl. In 67 C 1/16, 1975, 2, USSR Copyright Certificate No. 26558, cl. B 67 C 1/02, 1929,