Landia POP-1, Руководство пользователя

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AC01B.C01
Service instruction PODR-I
Page 2/6
Prepared by: AJ/CML Issued on: 01 March 1997
Approved by: SL Rev. date: 12 March 2021
Introduction
PODR-I is a horizontal submersible mixer. All surfaces which are in contact with the medium are made of stainless
steel.
The unit is placed in the cross section of the liquid to obtain the required mixing. During operation the mixer is
locked by the guide pipe to obtain stability. The mixing takes place by means of an electric motor; a propeller is
installed on the motor shaft.
The oil filled oil chamber between motor and propeller provides cooling and lubrication of the mechanical seals.
The sealing system consists of two mechanical seals. The exterior seal separates the medium from the oil
chamber; the interior seal separates the oil from the motor casing. The following pages describe the connection
and the maintenance of mixers type PODR-I.
Application
This mixer is to be used for flow creation, mixing and homogenization of liquids with a high or low dry matter
content, like e.g. wastewater, sludge, and paper pulp, as well as chemical liquids and manure.
The mixer can be placed in square and circular tanks and is to be applied only fully submerged below liquid level.
If the mixer is to be applied for other purposes, contact Landia A/S for advice.
Warning
Please note the following points:
•
Only a certified electrician is allowed to connect the unit.
•
Prior to installation and commissioning ensure that the equipment is installed correctly and fixed to the
mixer, as well as ensure that the equipment in the tank is fixed safely.
•
Prior to the first start of the mixer, the propeller shaft must be rotated manually. This also applies if
the mixer has not been in operation for a longer period.
•
The electrical cable is always to be tightened by means of the chain to prevent the cable from getting
into contact with the propeller. If the mixer is not supplied with a chain, the cable is to be protected
against damage in another way, e.g. by means of a cable mesh.
•
It must be ensured that the propeller cannot touch the tank.
•
It is always to be ensured that the mixer is fully below liquid level during operation.
•
Prior to hoisting the mixer at service/repair it is always to be ensured that the electrical connection of
the mixer is switched off or locked. Prior to service/repair the mixer should be cleaned thoroughly.
•
When the mixer is hoisted or lowered, its cable and chain are always to be placed outside the work
area.
•
For service/repair of mixers installed in well/tank with explosion danger/toxic gases we refer to the
national safety directions as far as safety is concerned, e.g. concerning the toxic hydrogen sulphide.
Service/repair
To maintain a high operation safety and a long service life without unnecessary and expensive repair it is important
from the beginning to execute regular and preventive service. Maintenance should be executed according to the
intervals stated in the manual. Always follow the instruction carefully and only apply the parts described by Landia
A/S in the spare parts list.
If you do not want to execute service yourself - we can offer you a service agreement - please call for further
information.