RU2435656C1 - Method of container cleaning of products residues - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: cleaning is performed by operators. One of the latter is located inside the container to fit cleaning tools arranged on the end of cable rope coupled with the winch, to adjust cleaning tool depth of products residues grab and to discharge said resides into pit with mixer arranged below container bottom. Second operator located outside of container ensures cyclic cleaning via clutch unit with the help of manual control lever which, when thrown in, transmits torque from electric drive to winch via V-belt transmission and adjusts winch cable rope tension and disengages with clutch disengaged. First operator reruns cleaning tools to initial position for the next cleaning stage.

EFFECT: cleaning of larger-volume containers.

3 cl, 1 dwg

Description

The invention relates to a method for cleaning containers from product residues and can be used in the food industry, in particular when storing molasses molasses, during storage and transportation of oil and oil products, in other cases, when a liquid is subjected to a constant process of converting the component composition of the liquid, accompanied by accumulation of precipitation in the tank.

It is known, for example, that with prolonged use of the container for storing molasses without cleaning, crystallization of the molasses occurs, followed by precipitation on the bottom of the container, which negatively affects the quality of the newly molded molasses, and a decrease in the useful volume of the container. Settled sediment - Utrefel is not amenable to conventional shipping methods. Assuring the quality of molasses is possible only in the case of periodic cleaning of the container from residues of viscous sediment.

There is a manual method for cleaning containers from product residues using shovels, scrapers and other devices (V.F. Eftikhin, S.T. Malakhov "Cleaning tanks from residues and deposits of oil products." M: TsNIITEneftekhim, 1984, p. 11).

The disadvantage of manual cleaning is the cost of a lot of time and manual tools.

There is a mechanized method for cleaning product residues from reservoirs using a bulldozer, for which a corresponding opening is cut out in the reservoir wall (ibid., P. 19).

In this case, labor costs are reduced, but there is a large expenditure of energy.

Tank cleaning is a complex process. Basically, methods have been developed that clean the inner side walls of containers.

So, for example, close in technical essence is the method of cleaning the tank, which consists in the fact that cleaning tools are installed in the tank and provide their reciprocating movement and movement with the possibility of free angular rotation (AS No. 1692688, class B08V 9 / 08, 1991).

The disadvantage of this method is the difficulty in cleaning the tank from bottom residues of products that occupy a large volume.

The objective of the invention is the implementation of a method of cleaning containers from residues of products that occupy a large volume.

The task is carried out in the proposed method of cleaning the tank from product residues, which consists in the fact that the cleaning tools are installed in the tank and provide their reciprocating movement and movement with the possibility of free angular rotation using operators, one of which is inside the tank and installs cleaning tools located at the end of the cable connected with the winch to the starting position, with cleaning tools, adjusts the depth of capture of product residues and their unloading into the pit with an agitator located below the bottom of the tank, the second one located outside the tank provides a cyclical cleaning process through a clutch assembly having a manual control lever, which, when turned on by the operator, transmits torque from the electric drive to the winch using a V-belt transmission, adjusts winch cable tension with two pulleys on a common shaft and a metal roller that enhances the muscular strength of the operator, and when the manual control lever is disconnected using springs The clutch disengages, and the first operator returns the cleaning tools to their original position for the next cleaning stage.

As cleaning tools use a scraper (scrapers) of various shapes.

In the sugar industry, product residues are molasses molasses residues.

The drawing shows a diagram of an implementation of the proposed method.

The operator, located inside the tank being cleaned 1, unwinds the cable 2 with cleaning tools 3 from the winch 4 to the desired length. When the movement of the cable 3 stops, the operator, located outside the tank, using the manual control lever 5 of the clutch assembly 6 sets it in motion; the torque is transmitted from the electric drive (not shown) to the winch 4 using a V-belt transmission, the tension of the cable 2 of the winch 4 is adjusted using two pulleys on a common shaft and a metal roller mounted under them (not shown), which allow a multiple increase in belt tension pulleys, while reducing operator muscular power costs. Cleaning tools 3, located in the tank 1, come into motion, moving to the technological window - cleaning begins, the unloading of the residues occurs in the pit with a mixer 7.

V-belt transmission helps prevent accidents involving operator errors. In this case, the belts simply slip.

Having reached a critical distance from the side wall of the tank 1 and abutting against it, the cleaning tools 3 are stopped by means of a limit switch. The operator releases the manual control lever 5 of the clutch 6, the spring disengages the clutch, pulling it in the opposite direction from the tension. The operator inside the tank 1 takes a new starting position with cleaning tools 3. The operation is repeated until the tank is completely cleaned.

The proposed method allows to solve the problem of cleaning a large amount of product residues mechanized in a fairly short time with the involvement of only 2-3 operators.

For example, in the sugar industry, 300 tons of viscous sludge in a container with molasses molasses is cleaned for 80 people / hour.

The technological window, which is cut out in a container for passing a rope with cleaning tools, with this method of cleaning has a minimum size.

Claims (3)

1. The method of cleaning the tank from product residues, which consists in the fact that the cleaning tools are installed in the tank and provide their reciprocating movement and movement with the possibility of free angular rotation, characterized in that the movement of the cleaning tools is carried out by operators, one of which is inside the tank and sets the cleaning tools located at the end of the cable connected with the winch to the starting position, adjusts the cleaning depth of the product residues with the cleaning tools s and their unloading into the pit with an agitator located below the level of the bottom of the tank, the second, located outside the tank, provides a cyclic cleaning process through a clutch assembly having a manual control lever, which when turned on by the operator transmits torque from the electric drive to the winch using two pulleys on a common shaft and a metal roller enhancing the muscular strength of the operator, and when the manual control lever is disconnected by means of a spring, the clutch disengages and the first operator uschestvlyaet refund clearing tool to the starting position for the next purification step. 2. The method according to claim 1, characterized in that as a cleaning tool using a scraper (scrapers) of various shapes. 3. The method according to claim 1, characterized in that the remains of the products are the remains of molasses molasses.

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