guth RA Series, RA 45 Operating Manual

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Flow Components Capital Equipment Engineered Processing Units

Operating manual

Mixer Remo

vable RA Modles Model: RA 45

oduction of this document, commercialisation and publication of its content is strictly forbidden. Contravention

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Flow Components Capital Equipment Engineered Processing Units

Table of Contents

1 Designated application and overview 01

1.1 Designated application 01

1.2 Ov

erview 01

1.3 Technical specifications 01

2 Safety 02

2.1 Notes/Explanations 02

2.2 Safety standards 02

2.3 Built-in safety systems 02

2.4 Safety precautions 02

2.5 Responsibilities of the customer 02

2.6 Safety inspections and tests 02

2.7 General warnings 02

2.8 Spare and wearing parts 02

2.9 Shutdown procedure 02

3 Installation 03

3.1 Scope of delivery 03

3.2 Transport and packing 03

3.3 Mounting/Installation 03

3.4 Mounting the mixer shaft 03

3.5 Checking the sense of rotation of the motor 03

4 Functional description 04

5 Operation 05

5.1 Connection to the tank fitting 05

5.2 Disconnecting the tank fitting 05

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Flow Components Capital Equipment Engineered Processing Units

Table of Contents

6 Cleaning 06

6.1 Daily cleaning (quick cleaning) 06

6.2 General cleaning 06

7 Maintenance/Installation 07

Troubleshooting 08

9 Emergencies 09

10 Dismounting/Disposal 10

11 Index 11

Appendix 12

1 Tank fittings

2 Folding propeller

3 Optional extras

3.1 Gassing device

3.2 Mobile stand

4 Spare parts

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1. Designated application and Overview

1.1 Designated application

Flow Components Capital Equipment Engineered Processing Units

GUTH mixers ar

e designed and built solely for commercial and industrial use. They are used to mix, stir, disperse and homogenize. The mixer is mounted to the tank with fittings. The fittings and tank must be capable of withstanding the forces that occur.

Possible applications {XE "Possible applications"}:

- Stirring of liquids to prevent sedimentation of pulp and other solids, e.g. stirring of wine yeast for biological

acid decomposition.

- Production of uniform liquid mixtures even where various specific weights are involved.

- Clarification and homogenization when blending.

- Mixing of liquids with solid or gaseous products, e.g. to disperse clearing agents, sulphurous acid or carbonic acid.

- Emulsification of sterile preparations and homogenized distillates.

- Acceleration of reactions and dissolution processes, e.g. influencing of fermentation by dissolving sugar and

sugar solutions.

- Intensification of the efficacy of hot and cold influencing processes, e.g. uniform interspersion of liquids in

cooling processes.

- Activation of low-fermentation yeasts.

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1.2 Overview{XE "Overview"}

Flow Components Capital Equipment Engineered Processing Units

Fig. 1-1 Overview

1. Pr

opeller 4. Hollow shaft motor

2. Mixer shaft 5. Hollow shaft coupling

3. Floating ring seal 6. Mixer shaft coupling

1.3 Technical specifications{XE "Technical specifications"}

Tank volume

Power

Voltage

Frequency

Speed

Nominal current

Weight

rpm

RA 45 RA 45

20000 L 20000 L

0.45 0.45

230 400

50 50

1500 1500

2.3 1.3

16 16

Length

Propeller E

410 410

800 800

425 425

28 28

147x25 17x25

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Flow Components Capital Equipment Engineered Processing Units

Product specifications

Viscosity: >20 Baumé = 36.34 Brix =

(equivalent to a 36% sugar solution at 20°

C) 1.2° Engler = 4 centipoise

Temperature range for{XE "Temperature range"}:

Mixer: -20°C to +180°C

product-dependent

Ambient conditions

Noise level: < 70 dtB (A)

Cleaning

The mixer is to be cleaned with water, dish-washing liquid and a soft cloth.

Do not use sharp objects or tools to clean the mixer.

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3. Safety

3.1 Notes/Explanations Explanations

Flow Components Capital Equipment Engineered Processing Units

Operating manual mandator

framed and marked with a book symbol.

Warnings

framed and marked with a stop sign.

Dangers

framed and marked with a warning triangle.

Notes

framed and marked with a hand symbol.

Danger of electric shock

framed and marked with the symbol shown.

Protective conductor connection

marked at the connection points by the symbol shown.

Model number

The information in this operating manual only applies to the mixer whose model number is specified on the title page.

A nameplate with the model number is attached to the protective cover of the gear.

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3.2 Safety Standards

Flow Components Capital Equipment Engineered Processing Units

The mixer was built in conf

ormity with the following Germancodes

1. EC directives on machinery (89/392/EEC, 91/368/EEC,

93/44/EEC, 93/68/EEC)

1.1 DIN EN 00292-1: 11/91 Safety of machinery; principles

1.2 DIN EN 00292-2: 06/95 Safety of machinery; principles

1.3 DIN EN 00294: 08/92 Safety of machinery; safety distances

to keep the upper extremities from points of danger

1.4 DIN EN 00614-1: 04/95 Safety of machinery; ergonomic

design principles

1.5 DIN EN 01037: 04/96 Safety of machinery; prevention of

unexpected starts

1.6 DIN EN 60034-9: 05/96 Rotating electrical machinery; part 9:

noise limits

1.7 DIN EN 60034-9 A1: 08/96 Rotating electrical machinery; part

9: noise limits, amendment A1

1.8 DIN EN 60204-1: 06/93 Safety of machinery; electrical

equipment of machinery; part 1: general requirements

2. DIN EN 61000-4-2: 03/96 Electromagnetic compatibility

(EMC); testing and measuring methods

3. Equipment safety law machinery ordinance

- 3 GSGV / 9 GSGV

4. VDE 530 - Rotating electrical machinery

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Flow Components Capital Equipment Engineered Processing Units

3.3 Built-in safety systems {XE "Safety systems"}

- The mixer is equipped with a one or thr

ee-phase, three or fivewire supply system with current-carrying N and

separate earth conductor (with yellow/green insulation).

This operating manual is an integral part of the mixer and must be kept readily at hand for the operators at all times. The safety instructions in it must be followed. Also pay attention to the protective motor switch built into the motor as safety system; see separate operating manual.

It is strictly forbidden to render any of the safety devices inoperative.

3.4 Safety precautions{XE "Safety precautions"} (to be carried out by the customer)

The customer must

- instruct his operating and maintenance personnel in the use of the mixer and its safety devices and

- ensure that the safety precautions are being adhered to. This operating manual is an integral part of the

mixer and must be kept readily at hand for the operators at all times.

The work described in this operating manual is explained in such a way that

- the chapters Transport, Operation and Installation can be

understood by a trained worker and

- the chapters Maintenance and Troubleshooting by a qualified technician.

Work described in the chapters Maintenance and Troubleshooting may only be carried out by qualified technicians.

Definitions based on EN 60204-1.

Trained worker {XE "Trained worker"}

- A person familiarized with and, if applicable, trained in his particular duties by a qualified technician and instructed

in the potential dangers in the event of improper conduct and in the necessary safety devices and safety precautions.

Qualified technician{XE "Qualified technician"}

- A person who, on account of his technical training, know-how, experience and knowledge of relevant standards, is

able to assess the work assigned to him and identify potential dangers.

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2.5 Responsibilities of the customer

Flow Components Capital Equipment Engineered Processing Units

In the EEA (European Economic

Area) national implementation of the framework directive 89/391/EEC and corresponding individual directives, in particular the directive (89/655/EEC) on the minimum regulations for safety and health protection in the use of work materials and tools by employees at work, as amended, are to be observed and adhered to.

The customer must observe local laws and regulations on:

- personnel safety (accident prevention regulations)

- safety of work materials and tools (safety equipment and maintenance)

- disposal of products (laws on wastes)

- disposal of materials (laws on wastes)

- cleaning (cleaning agents and disposal)

- environmental protection

The customer must observe any local regulations on, for example, the connection of electric power supplies when installing and commissioning the mixer himself.

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3.6 Safety inspections and tests

Flow Components Capital Equipment Engineered Processing Units

Factory inspections and tests b

y the manufacturer

1. Airborne noise measurement

- According to the machinery directive, appendix 1(Point 1.7.4/ff.)

2. Safety tests in terms of DIN EN 60 204 - 1

- Continuous connection of the protective conductor system (Chapter 20.2)

- Insulation resistance tests (Chapter 20.3)

- Voltage tests (Chapter 20.4)

- Protection against residual voltage (Chapter 20.5)

- Testing of electromagnetic compatibility in accordance with EMC directives

- Function tests (Chapter 20.7) Functions of electrical equipment, particularly those concerning safety and protective measure

3.7 General warnings

The electric power supply cable must be routed so that there is no danger of anybody tripping over it!

Only mount and dismount the mixer when the mains plug has been pulled out of its socket. Make sure the tank fittings are mounted to the full tank correctly when inserting the mixer. Close the tank fitting before dismounting the mixer.

When inserting or removing the mixer make sure any liquid product discharging during this work is caught or drained off. Also pay attention to the warnings in the attached operating manual on the motor.

Avoid driving over the electric power supply cable. Make sure the electric power supply cable cannot be pinched anywhere. If you have a three-phase motor version of the mixer, make sure the phase sequence is clockwise; if not, have an electrician interchange two phases of the power supply cable.

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3.8 Spare and wearing parts

Flow Components Capital Equipment Engineered Processing Units

Spare par

ts and accessories that have not been supplied by us have also not been tested and approved by us. The fitting and/or use of such products could therefore negatively affect the design characteristics of your mixer.

WILHELM GUTH GmbH accepts no liability for damages arising from the use of non-original parts and accessories. Standard parts can be bought through the specialized trade.

The spare parts list is attached in the appendix to this operating manual.

3.9 Shutdown procedure

The following shutdown procedure must be followed before any cleaning, maintenance or repair work is carried out:

Switch off the mixer

- Switch off the on/off switch.

- Pull out the mains plug.

Shut off the product supply

- Close the tank fitting.

Dismount the mixer

There is a danger to life and limb of the personnel if this procedure is not followed!

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4. Installation

4.1 Scope of delivery

Flow Components Capital Equipment Engineered Processing Units

The scope of deliver

y comprises the mixer, a tank fitting and a propeller in accordance with our acknowledgement of

your order and the delivery note as well as this operating manual and technical reference material.

On request the hollow shaft motor can be designed for other voltages. The mixer is also available in an explosion-proof version.

3.2 Transport and packing

The mixer is carefully inspected and packed before shipment. Nevertheless, it is still possible that it might become damaged during transit.

Receiving inspection

- Check the shipment against the delivery note to ensure that it is complete!

If the packing is damaged

- Check the shipment itself for damage (visual inspection)!

Complaints

If the shipment was damaged during transit:

- Immediately contact the last carrier!

- Keep the packing material (in case the carrier wants to inspect it or the shipment has to be returned to us)!

Packing for return shipment

Use the original packing material as far as possible.

If it is no longer available:

- Use the services of a packing company with specializedpersonnel.

- Consult GUTH GmbH should you have any questions on the packing and protection of the mixer for shipment.

Sea-worthy packing

For overseas shipment the mixer is sealed in foil together with desiccant.

Storage in the open

The mixer may not be stored in the open. The desiccant sealed in foil together with the mixer for overseas shipment suffices for a storage period of up to three months.

Storage in a closed room Storage conditions

- Temperature 20°C to 30°C

- Humidity < 60%

Also pay attention to the chapters Receiving,Transport and Storage in the separate operating manual on the motor.

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3.3 Mounting/Installation

Mounting information

Flow Components Capital Equipment Engineered Processing Units

The length of the shaft H extending into the liquid in the tank is obtained b

y subtracting the face-to-face dimension G

of the connection fitting and the thickness F of the tank wall from the length C (H = C - G - F).

Specify the desired shaft length C in your order (C = G + F + H). Take the standard lengths B of the individual models into account; they are available in lengths of up to max. 1200 mm.

Fig. 4-1 Fitting dimension

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3.4 Mounting the mixer shaft

Flow Components Capital Equipment Engineered Processing Units

For shipping r

easons the motor and mixer shaft are delivered dismounted.

Mount as follows: (see Fig. 1-1)

- Unscrew the propeller (1) from the mixer shaft (2). Note that the thread is left-handed!

- Insert the mixer shaft (2) into the opening of the hollow shaft (5) from the coupling side of the motor until the thread

of the mixer shaft is completely visible on the connection side of the motor.

- Screw the propeller (1) back on to the mixer shaft (2). Remember that the thread is left-handed!

- Pull the mixer shaft back as far as it goes. The mixer is ready for connection.

3.5 Checking the sense of rotation of the motor

The sense of rotation must be checked before the mixer is connected to the tank because the propeller will come loose from the mixer shaft if it is wrong.

Check as follows:

- Connect the mixer to the power supply.

- Switch the on/off switch on to “I” briefly so that the motor turns a little (not continuously).

- Check whether the motor turns in the direction of the arrow on themotor.

- If it does not, have this corrected by a qualified technician.

- The propeller boss has wrench flats for unscrewing of the propeller. If the propeller is too tight, hold the mixer shaft

tight at the mixer shaft coupling.

When checking the sense of rotation make sure you do not hold or try to grip the shaft or propeller. Danger of injury!

Do not hold the mixer shaft tight on the shaft itself because this can damage the mixer shaft and the seal (the latter when pulling back the shaft).

A wrong sense of rotation will also damage the floating ring seal.

Also pay attention to the attached operating manual on the motor.

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Flow Components Capital Equipment Engineered Processing Units

5. Functional Description

All parts that come into contact with liquid are made of non-corroding steel (1.4301).

The mixer is connected to the full tank with the tank fitting:

Slanted seat valve

- Flow cock

- Drain valve

- Butterfly valve socket

- The retractable mixer shaft allows front mounting on the tank and insertion of the propeller into the medium without

any loss of liquid or pressure.

- The special bearing of the mixer shaft in the hollow shaft of the electric motor ensures a steady and

vibrationless run.

- The floating ring seal {XE "Floating ring seal"}NP 1-2 SR guarantees troublefree continuous duty up to 10 bar.

A special floating ring seal is needed when stirring corrosive products.

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6. Operation

6.1 Connection to the tank fitting

Flow Components Capital Equipment Engineered Processing Units

Connect as follo

ws:

- Check whether the tank fitting is closed; if not, close.

- Loosen and remove the seal cap of the fitting so that the thread of the fitting for connection of the mixer is accessible.

- Place the mixer with retracted mixer shaft on the thread, screw on the companion nut and tighten with a

sickle spanner.

- Open the tank fitting. The connected mixer seals off.

- Push the mixer shaft through the hollow shaft completely to the connection side of the motor.

- Hold the hollow shaft coupling (5) tight with your left hand.

- Turn the mixer shaft coupling (6) clockwise with your right hand until the coupling pin catches in the indent.

- Plug the mains plug into the socket.

- Switch on the mixer by switching the on/off switch on to “I”.

6.2 Disconnecting the tank fitting

Disconnect the tank fitting as follows: (see Fig. 1-1)

- Switch off the mixer by switching the on/off switch on to “0”.

- Pull out the mains plug.

- Hold the hollow shaft coupling (5) tight with your left hand.

- Turn the mixer shaft coupling (6) anti-clockwise with your right hand and remove the coupling pin from the indent.

- Pull the mixer shaft (2) through the hollow shaft completely to the coupling side of the motor as far as it goes.

- Close the tank fitting.

- Unscrew the companion nut with a sickle spanner and remove the mixer.

When inserting or removing the mixer make sure any liquid product discharging during this work is caught or drained off.

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Flow Components Capital Equipment Engineered Processing Units

7. Cleaning

The following shutdown procedure must be followed before any cleaning, maintenance or repair w

ork is carried out:

Switch off the mixer

- Switch off the on/off switch.

- Pull out the mains plug.

Shut off the product supply

- Close the tank fitting.

Dismount the mixer

There is a danger to life and limb of the personnel if this procedure is not followed!

7.1 Daily cleaning

Clean only with water during the individual work intervals. Do not use a cleaning agent, because thorough rinsing is then necessary

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Flow Components Capital Equipment Engineered Processing Units

6. Operation

6.2 General cleaning

General cleaning is to be carried out:

every six months

- when the tank is cleaned

- when the plant is shut down

The manufacturer accepts no liability for damage resulting from the use of cleaning agents or cleaning tools other than those recommended or from improper handling!

No special cleaning agent is needed to clean stainless steel parts. Use steam or alcohol for disinfection.

No cleaning agents containing

- soda lye, other high alkaline substances with chlorine, bromine, iodine or fluorine admixtures,

- potassium oxide,

- chlorous products,

- ammonium compounds, quaternaries,

- hydrochloric or hydrofluoric acid may be used because they corrode the stainless steel surface.

The flange housing with thread connection is to be removed and cleaned once a year.

Pay attention

- to the instructions in the safety data sheets of the manufacturer's of the cleaning agents.

These instructions must be followed.

The onus of proof that the cleaning agents were used properly lies with the customer.

Use a coarse scrubbing or plastic brush to clean the stainless steel parts.

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8. Maintenance/Installation

The GUTH mixer may only be taken apart and serviced technically by qualified technicians.

Flow Components Capital Equipment Engineered Processing Units

Also pay attention to the cha

pter on maintenance of the motor in the separate

operating manual.

Qualified technician

- A person who, on account of his technical training, know-how, experience and knowledge of relevant

standards, is able to assess the work assigned to him and identify potential dangers.

Definition based on EN 60204-1.

The following shutdown procedure must be followed before any cleaning, maintenance or repair work is carried out:

Switch off the mixer

- Switch off the on/off switch.

- Pull out the mains plug.

Shut off the product supply

- Close the tank fitting.

Dismount the mixer

There is a danger to life and limb of the personnel if this procedure is not followed!

GUTH mixers are maintenance-free. They are, however, subject to normal wear and tear and must be checked at regular intervals by a qualified technician in accordance with accident prevention regulations (e.g. VBG 4 Electrical installations and apparatus).

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9. Troubleshooting

The situations and instructions on troubleshooting described in this chapter are explained in such a way that they can be understood b

Maintenance work may only be carried out by a qualified technician.

The shutdown procedure (see Chap. 3.9) must be followed before any maintenance or repair work is carried out.

If the measures described below do not prove successful, please contact WILHELM GUTH GmbH.

Flow Components Capital Equipment Engineered Processing Units

y a trained worker.

Fault Cause

Mixer does not work

Folding propeller does not open

Mixer shaft vibrates

gly

stron

Liquid leaks from the leak holes in t flange housing (mixer connection side)

Plug connections of

wer supply are

the po loose

Blades deformed Blades stuck

Folding propeller does not open Shaft ben Motor shaft bearing

Floating ring or motor shaft seal dama

ged

Correction

Check the mains

fasten if

plug, necessary

Replace the folding

opeller

pr Clean carefully

Clean carefully or replace t propeller Replace the shaft, check the folding propeller Send in the complete mixer for repairs

Send in the complete mixer f renew replaceable parts

he folding

or repairs or

Liquid leaks from the shaft coupli (coupling side)

Replace mixer shafts that are no longer perfectly centred because they cause unbalanced shaft rotation. This in turn wears out the motor shaft bearing and damages the floating ring and motor shaft seals. Depending on the extent of the damage

Mixer shaft seal

ged

dama

, liquid is then able to penetrate into the motor, which can short circuit.

Send in the complete mixer f renew replaceable

or repairs or

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Flow Components Capital Equipment Engineered Processing Units

10. Emergencies

In the event of an emergency

- sw

itch off the on/off switch and

- pull out the mains plug.

11. Dismounting/Disposal

The mixer is primarily made of steel (except for the electrical equipment) and is to be disposed of in accordance with valid local en

vironmental protection laws.

Cleaning agents must be disposed of in accordance with local regulations and the manufacturer's instructions in the safety data sheet.

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12. Apendix

Flow Components Capital Equipment Engineered Processing Units

Fig. 1-1 Tank fittings

A Slanted seat valve B

Flow cock C Drain valve D Butterfly valve socket with detachable pipe

Full opening of all tank fittings must be guaranteed. They are opened as follows:

- Slanted seat valve – by screwing out the valve spindle

- Flow cock – by turning the ball

- Drain valve – by turning away the cover plate

If a butterfly valve socket is needed, the detachable pipe must be used. Abutting of the butterfly valve can result in damage to the floating ring seal.

The tank fitting must be designed for the particular model of mixer.

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Folding Propellor

Flow Components Capital Equipment Engineered Processing Units

Fig. 2-1 Folding propeller

Folding pr

opeller serves insertion in tank fittings with small openings in folded state. The folding propeller blade unfolds and folds automatically when the mixer is switched on and off respectively.

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Flow Components Capital Equipment Engineered Processing Units

Optional Extra’s

3.1 Gassing Device

The gassing device is made of chrome nickel steel and enables direct gassing with sulphur dio

xide (SO2) and carbon dioxide (CO2) with rotating mixer shaft. The gases being added are mixed intensively on admission.

Fig. 3-1 Gassing device

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Optional Extra’s

3.2 Mobile Stand

Flow Components Capital Equipment Engineered Processing Units

Fig. 3-2 Mobile stand

Size 0 Size 1 Size 2 Size

The mobile stand supports the operating mixer mounted on the tank fitting. Thanks to the better handling possibilities it offers,

If the tank with tank fitting is not designed for the weight of the mixer, a mobile stand must be used.

250 250 250 250

500 500 500 700

450 500 650 950

600 700 1000

1500 1060

1060 1060 1060

170 170 170 170

410 410 410 410

425 425 425 425

the stand greatly facilitates mounting and dismounting of the mixer.

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Optional Extra’s

3.2 Mobile Stand

Flow Components Capital Equipment Engineered Processing Units

Fig. 4-1 Spare parts

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Johonnesburg:

79 St Georges Street, PO Box 58070, Newville, 2114 Phone: + 27 (0)11 477-4923 Fax: + 27 (0)11 477-8062 e-mail: [email protected]

Newlands

Cape Town:

2 Platinum Rd, PO Box 1486, Milnerton, 7435 Phone: + 27 (0)21 555-8300 Fax: + 27 (0)21 552-2228 e-mail: [email protected]

Port Elizabeth:

Unit 24, PO Box 70496, The Bridge PO, Port Elizabeth, 6032 Phone: + 27 (0)41 367 2431 Fax: + 27 (0)41 367 5152 email: [email protected]

Willow Road Business Park, 33 Willow Road, Fairview

Pinetown:

Unit 3 Pastel Park, 50 PO Box 8, Pinetown, 3600 Phone: + 27 (0)31 709-5444 Fax: + 27 (0)31 709-8333 e-mail: [email protected]

Marconi Industria, Montague Gardens

Wareing Road