DE20302478U1 - Rotating and protected jet cleaner for the interior of vessels/containers, with a self-cleaning action, has a variety of replacement cleaning heads to match the cleaning conditions - Google Patents

Abstract

The rotating and protected jet cleaner, to clean the interior of vessels and containers, is of the sealed and conductive drive sequence material American Iron & Steel Institute (AISI) 316 L. It has a number of exchangeable, encapsulated and conductive replacement heads of AISI 316 L. A bevel reduction gear (4) in the replacement heads is wholly encapsulated by the outer contour (9,10) against soiling from the exterior, to drive the jet carrier (11) on two rotating planes. The inner drillings at the replacement head carry the cleaning fluid from the fluid supply (13) to clean the interior of the head, and the cleaning fluid is forced out through drillings against beating heads (8) to clean the exterior of the head.

Description

Description of the utility model

Rotating, explosion-proof, self-cleaning jet cleaner with

Interchangeable head system

Rotating spray devices, driven by angular gears, for cleaning the interior of container surfaces are well known in the industry. See DE 100 24 950 Cl

DE 24 37 948 Al

DE 75 38 187 U

GB11 67 923

US 27 66 065
or company brochures from Tuchenhagen GmbH.

These devices usually consist of a cleaning head that is firmly connected to the drive sequence and which, due to insulating bearings (packings), does not contain any metallic conductive connection, which ensures permanent explosion protection.

In these designs, the angle gears that come into contact with the product can become contaminated by deposits if they are not self-cleaning.

The known cleaning devices are designed for certain container sizes due to their spraying behavior. It is therefore not possible to just change the spray heads while maintaining the same drive sequence for cleaning different containers. The result is an increased, environmentally harmful, unnecessary consumption of cleaning fluids, or the expensive purchase of different devices.

Due to their design, the spray heads known to date do not allow 100% cleaning of the device's interior. Any remaining, possibly aggressive, amounts of spray liquid can therefore have a disruptive effect.

Our task was to design a spray head that is fully explosion-proof, with simultaneous complete internal cleaning, with an externally encapsulated drive sequence and 100% drainage of residual liquids, and can be replaced for existing drive designs depending on the desired spray pattern and different container sizes.

The replaceable rotary target jet cleaning head, which is adapted to the containers to be cleaned (various variants of different sizes with variable number of nozzles and adapted nozzle geometry), is supplied with rinsing liquid via a support pipe 17 with container flange 15 and lateral cleaning agent connection 13.

Due to the multi-layered shaft seals 14 on the motor side, operating pressures of up to 40 bar are possible. The motor is explosion-proof in Zone 0. When using the magnetic drive utility model 299 23 340.5, pressure levels of up to 200 bar are possible.

The rotational drive from the motor to the spray head is carried out via the shaft 13 of the drive unit and the coupling piece 1 of the spray head. The exact height of the coupling drive is the same for all interchangeable heads.

The cleaning fluid passes through the inlet bores of the gear carrier body 2 through the inner bores of the bevel gear 5 to the outside onto the 360° rotating nozzle tips 7.

At the same time, the targeted cleaning jets emerging from the flushing holes of the counter screw 10, which runs synchronously with the nozzles, clean the gears and the entire interior of the head.

The draining rinsing liquid hits the impact plate 8 via two drain openings in the lower part of the head 6 and, as an additional effect, cleans the outer base of the rinsing head.

The entire internal gear drive unit is protected against external contamination by the head outer contour 9 and 10.

The rotating interchangeable spray head, consisting of the elements 1 to 12 or the plain bearings A to D, forms a fixed explosion-proof unit with the support tube 13, the upper head section 9 and the bevel gear body 4 through the screw connection.

The motor-driven rotary movement of the lower body 6 causes the nozzle tip carrier 11 to rotate via the bevel gear transmission.

The nozzle tip carrier 11 with screwed-in nozzle tips 7 rotates around its own axis, at the same time the lower body rotates, whereby the nozzles perform a 360° movement. This movement arrangement results in a surface-covering spray pattern.

The self-cleaning, explosion-proof cleaning lance can be integrated into automatic cleaning processes with a freely selectable installation position.

Due to the defined coupling position, the spray heads can be changed at any time without any problems and without much effort.

All parts that come into contact with the product are made of stainless steel and are suitable for all cleaning agents.

Claims (4)

1. Rotating, explosion-proof, self-cleaning jet cleaner with interchangeable head system, characterized in that the cleaning device consists of a sealed, conductive drive sequence made of AISI 316 L with various screw-on, encapsulated and conductive interchangeable heads made of AISI 316 L. (Ex protection) 2. Jet cleaner according to claim 1, characterized in that the bevel gear transmission mounted in the interchangeable head, driving the nozzle carrier and generating two planes of rotation, is completely encapsulated against contamination from the outside. 3. Jet cleaner according to claim 1 and 2, characterized in that the cleaning fluid exiting through internal outlet bores on the replaceable head is used to clean the inside of the head. 4. Jet cleaner according to claim 1, 2 and 3, characterized in that the cleaning fluid used for internal cleaning cleans the outer head area when it exits by means of bores and impact plates.