application references re imneys, towers · application references reservoirs, silos, chimneys,...

Application References Reservoirs, silos, chimneys, towers

Reservoirs Silos Chimneys & Towers

MC1325

ref.:rev. no.:date:page:

productinformation

M-613

12/941/12

access equipmentfor tanks

Fixed-roof tank.Mono cradle with DELTA suspension beam.

PA678 Floating-roof tank. BP depot, Hünxe, Germany.6 m ALTA platform with mobile suspension clamps.

MC1325


productinformation

M-613

12/942/12


1. CLASSIFICATION

2. GENERALIn principle every tank is accessible economically usingsuspended platforms.

a) Mono cradle or platform with two suspension points.– the mono cradle is well suited to tanks up to around 8 m in

diameter;– for larger diameter tanks, longer platforms are generally

used, preferably with end stirrups to ensure that they fitbetter.

b) Suspension pointsFixed-roof tanks, compared to floating-roof tanks, requiredifferent suspension systems:– for fixed-roof tanks, standard DELTA-type suspension beams

are used (see page 5/12). There are also movable jibs (seepage 6/12).The two types are anchored to the centre of the roof, in sucha way as to allow the system to rotate.

– for floating-roof tanks, parapet clamps which may beadjusted to suit the guard-rail, are used. For these adjustableparapet clamps, a detailed dimensioned drawing is required(see page 4/12).

fixed-roof tanks floating-roof tanks

without guard-rail with guard-rail without guard-rail with guard-rail

with

out

with

serv

ice

serv

ice

plat

form

plat

form

MC1325

Check-list forfixed-roof tankswith or without guard-rail

1. Main dimensions(see below)

2. Check the anchorage possibilities:– generally the roof is fitted with

a central ventilation shaft.– if not, it is possible to anchor to three or four

pipes sited along the edge of the roof(see page 8/12).

Summary of the dimensions:– to be found on the tank's technical plate

or:a) diameter: measure the roof, or

measure the circumference and divide by 3.14.b) height: measure the height of a facing rim

and multiply by the number of rims.

E cm


productinformation

M-613

12/943/12


C

D

E

B

ca. Ø A

conduitescirculaires

garde-corpsconduit d'aérationcentral

Tank N°

Depot

Name

Date

Dimensions

Ø A m

Height B m

C cm

D cm

centralventilator shaft

guard-rail

circularpiping

MC1325

H cm


productinformation

M-613

12/944/12


Check-list forfloating-roof tankswith or without service platform/guard-rail

1. Summary of the main dimensions:– to be found on the tank's technical plate

ora) diameter: measure the circumference and

divide by 3.14;b) height: measure the height of a facing rim

and multiply by the number of rims.

Tank N°

Depot

E

C D

G

F

D

C

H

E

G

F

plaque d'éclissage

conduitescirculaires

B

ca. Ø A

B

ca. Ø A

Date

Name

E cm

D cm

Dimensions

Ø (A) m

Height (B) m

C cm

F cm

G cm

Dimensions

Ø (A) m

Height (B) m

C cm

D cm

E cm

F cm

G cm

support plate

circularpiping

MC1325


productinformation

M-613

12/945/12


fixed-rooftanks

without service platformwith guard-rail

PA679

Installation of a sprinkler system.The mono cradles are suspended from standard DELTA beams,which are anchored to the central ventilator shaft.

PA679.1

MC1325


productinformation

M-613

12/946/12


fixed-rooftanks

without service platform,with guard-rail

PA680 - Special suspension clamp for tanks PA680.1

A basic set of equipment, comprising a cradle with hoist and the suspension clamp with anchoring accessories, is very oftenpurchased by the tank user after the first contract, so that it is available for the tank's future maintenance.

MC1325


productinformation

M-613

12/947/12


fixed-rooftanks


PA680.2

PA680.3

FINA depotLudwigsfelde/Germany

Installation of a sprinkler system.8 m ALTA platform with endstirrup.The platform is suspended fromtwo special tank clamps whichare anchored to the centralventilator shaft.

MC1325


productinformation

M-613

12/948/12


fixed-rooftanks


PA680.4

PA680.5

FINA depotLudwigsfelde/Germany

The two suspension clamps areanchored to an "artificial" centralanchor point which is itselfanchored to the ventilation shaftssited around the edge of the roof.

MC1325


productinformation

M-613

12/949/12


floating-rooftanks

with service platform,without guard-rail

PA678.3

BP depot,Hünxe/Germany

6 m ALTA platform on a floating-roof tank.The platform is suspended frommobile trolleys which comprisemainly components of our stan-dard DELTA suspension system.

PA678.2 PA678.1

MC1325


productinformation

M-613

12/9410/12


floating-rooftanks

with serviceplatform,

without guard-rail

PA678.5 PA678.6

PA678.4

Mobile suspension system with "C" stirrup which maybe lifted to pass around obstacles, such as stairwaysand ladders.The model opposite is extremely low and may passunderneath obstacles, such as pipes, etc.In the photo below can be seen the advantage of theend stirrups of the platform, which, combined with the"C" stirrup suspension points, allows easy accessunder the service platform.

MC1325


productinformation

M-613

12/9411/12


PA680.7 PA680.8

PA680.6

floating-rooftanks

with service platform,with guard-rail

Photo opposite:Two mobile suspension systemsassembled with a connecting bar.Photos below:Installation of a sprinkler system.Note the extended "C" stirrup of thesuspension point, allowing accessunder the service platform.

MC1325


productinformation

M-613

12/9412/12


Suspension clamp with roller on areversible socket, for adjustingthe height.

PA678.8

floating-rooftanks

with service platform,without guard-rail

PA678.7

FMC708

Description of application:

Painting of 30 m dia., 25 m high, metal reservoirs.

The special suspension has been developed from our stan-dard DELTA suspension jibs. To allow the unit to rotate, the rearpart has been replaced by a tube fixed to the center part of thereservoir roof.


productinformation

M-091110/941/1

access equipmentfor reservoirs

PA18.3

PA18.7

Application: Painting of reservoirsCustomer: Metallwerk A.G., Buchs/SwitzerlandActivity: Metal constructionsEquipment: – 1 ALTA mono suspended platform,

1.50 m long with1 TIRAK T-10001 BLOCSTOP BS 15-30 safety device

– 1 DELTA type special suspension jib

MC699

Application: Construction of a gasometerCustomer: Thyssen Stahlbau/ W. GermanyEquipment: 22 ALTA platforms 7 m long

22 TIRAK T-500 motorised winches22 manual TIRFOR TU-844 BLOCSTOP safety devices44 wire ropes 65 m long


The 22 platforms have been used for the construction of a 60m high gasometer.

Every second platform is equipped with manual TIRFOR TU-8 machines. These platform remain at the working position,whereas the others are fitted with TIRAK winches and bringpersonnel and material up and down.

The platforms are suspended from trolleys which move alongthe suspension beams, enabling them to negociate a protrudingsteel frame surrounding the tank spaced at 10 m intervals.

The complete suspension system moves as the work advances.


productinformation

M-228110/941/1

access equipmentfor reservoirs

PA178

PA178.1 PA178.2

MC949

Application: Painting work on silosCustomer: TIVOLI Company,

Hamburg/Germany

The equipment is made up of an ALTAplatform with 3 standard 2 m sections and 2angled sections, to lift around the silos.

The platform is operated by 3 TIRAK hoistsand is suspended by 3 main lifting wireropes and 3 secondary safety wire ropesfrom DELTA III jibs.


productinformation

M-392110/941/1

access equipmentfor silos

PA302.1

PA302.2 PA302

Application completed byGREIFZUG GmbH, Bergisch Gladbach.

FMC801


productinformation

M-121110/941/1

access equipmentfor grain silos

Application: Finishing and coating of inner walls of 92 grainsilos.

Client: STRABAG, Contractor Association,Bremen/Germany

Site: Corn-mills "Bremer Rolandmühle",Bremen/Germany

Equipment: 4 ALTA platforms each equipped with:one TIRAK T-1000, one BLOCSTOP BS 20-321 and two 55 m long wire ropes, dia. 9 mm.

Description of application:Problem:The ninety-two 50 m high grain silos are made of rectangularcells of different sizes (from 1.8x2.0 m to 4.0x4.8 m). Theinside walls have to be covered with a special product toprotect the grain from damp.

Solution:Use of a special platform made of a central stirrup equippedwith 2 telescopic cross-beams which support two 1.7 m longALTA-type platforms. The distance between the 2 platformscan be adapted to the width of the cell. The stirrup isequipped with a TIRAK hoist and an automatically workingBLOCSTOP on a safety wire rope.The platforms are suspended from suspension beams placedon the top of the silos. They are disassembled into componentsto allow access through the manholes at the botton of thecells. Ninety percent of the equipment is standard.

PA98

1700 mm 1600 – 2000 mm

FMC732


productinformation

M-097110/941/1


Application: Silo inspection and cleaning.Clustomer: "Südwestdeutsche Salzwerke",

Heilbronn/Germany.Activity: Salt mining.Equipment: 1 TIRAK T-1000 winch.

Description of application:Problem:To remove the salt deposited on the inside of the silo walls, aman sitting on a safety chair must be lowered into the silo.

Solution:The safety chair is suspended from the TIRAK T-1000 fitted toa trolley running on an I-beam under the roof of the building,which is above the three silos to be inspected.

RO64TIRAK and seat during demonstration test.

8 – 10 m

± 25

m

FMC729

Description of application:Problem:Lowering men inside silos for inspection and maintenance ofinside walls. As these silos can be up to 60 m high, it is importantto have available equipment which allows rapid access withmaximum safety.

Solution:A mobile jib on wheels is fitted with the TIRAK, the wire rope drumand the electric controls. Placed directly over the manhole, it isused for lowering the man secured by a harness or sitting on abosun's chair into the hole.A safety line provides extra safety for the worker.When the first inspection is completed, the complete device isimmediately wheeled to the next silo.


productinformation

M-094110/941/1


Application: Silo inspection and cleaning.Site: Amsterdam/Netherlands.Equipment: 1 TIRAK T-500 mounted on a special stirrup.

FMC688


productinformation

M-071110/941/1


Application: Working platform for silo inspection.Customer: Hoechst A.G., Offenbach/Germany.Activity: Chemical plant.Equipment: 1 TIRAK T-500 winch

1 TIRFOR TU-8 (as auxiliary)1 wire rope, 50 m long1 support for TIRAK and TIRFOR

Description of application:The problem was to control the raising and lowering of aworking platform for reservoir inspection.For this purpose, the TIRAK has been placed on the top of thereservoir. As an auxiliary device to be used in case of currentfailure or emergency, a TIRFOR TU-8 has been mounted onthe same wire rope as the TIRAK, between the TIRAK and theworking platform. It is mounted on the same support as theTIRAK. During normal operation, the TIRFOR is disengagedand, for greater safety, the clutch actuating lever is connectedto the reversing lever by means of a connecting pin.Adequate clearance has been left between the TIRAK and theTIRFOR, so that in the event of the TIRAK being blocked, theTIRFOR can still be operated, and the wire rope is notdestructed.

±1,5 m

±6 m

±20

m±3

m

TIRAK

TIRFOR TU–8

wire rope reeler

±23

m

MC808


productinformation

M-294110/941/3

access equipmentfor staple shafts

Application: Inspection and maintenance of staple shaftsSite: Manton Colliery and Barnburgh CollieryCustomer: National Coal Board,

South Yorkshire Area H.Q., RotherhamEquipment: – 1 platform (custom built)

– 4 hydraulic TIRAK THB-1000 hoists with ropecoilers, mounted in special frames

– 1 hydraulic power pack– 4 manual TIRFOR machines, cap. 3000 kg– 4 BLOCSTOP safety devices– 4 hoisting wire ropes, 112 m long, 9.5 mm dia.– 4 safety wire ropes, 60 m long, 16 mm dia.

Description of application:Inspection and maintenance to staple shafts can now becarried out safely and efficiently by using a suspended workingplatform system which has been developped by TIRFOR Ltd,Sheffield, in close collaboration with the South Yorkshire AreaN.C.B. (National Coal Board).

A system is in use at Manton Colliery and Barnburgh Collieryand consists of a 7 metre diameter steel platform, custom built,which is suspended at four points equally spaced around theplatform.

Hoisting and lowering is by means of four TIRAK model THB-1000 hydraulically operated cradle hoists with a safe workingload of 1000 kg each. Hoisting speed of the 6.77 tons load is7 metres/min. The hoists are specially designed for N.C.B. useand are suitable for operating with 60/40 aquascent lighthydraulic fluid at a pressure of 150 bars at 45 litres/min. Thehoisting equipment is used with 9.5 mm diameter wire rope witha minimum breaking strain of 6400 kgs.

The TIRAK machines are mounted in a special frame withintegrated rope coilers, which are suitably positioned andanchored to the main top frame of the Staple Shaft. Control isby means of a purpose built control console giving operationon all TIRAK simultaneously or individually for levelingadjustment or control. The whole unit is powered by a specialpower pack to N.C.B. (National Coal Board) standard which iselectrically driven.

A secondary safety system is supplied in the way of manualTIRFOR machines with their ropes suspended over a deflectorsheave and down through the platform. This ropes passethrough BLOCSTOP safety devices attached between themain suspension rope lower sheave and the platform. In theevent of a power failure or emergency, it is possible to raise theplatform manually by means of the TIRFOR machines.

When not in use the platform is suspended at the top of the shaftby means of four lengths of chain.

The system can be adapted to suit shafts and bunkers of othercross sections or sizing and can be used anywhere suspendedplatforms are adaptable.

MC808


productinformation

M-294110/942/3


manual TIRFOR

rope suspension point

hoisting wire rope

safety wire rope

sheave blockfor hoistingwire rope

BLOCSTOPsafety device

working platform

frame with hydraulicTIRAK and automaticwire rope coiler

reversingsheaveblock

counterweight

MC808


productinformation

M-294110/943/3


Hyd. powerpack

THB–1000TIRAK + coiler

manualTIRFOR

hoisting wire rope

safety wire rope

counterweight 25 kg

safety wire rope

hoisting wire rope

controls

controlpanel

Hyd. supply lines

sheaveBLOCSTOPsafety device

WORKING PLATFORM

MC1326


productinformation

M-614

12/941/4

access equipment forchimneys and towers

PA674/674.1

applications:

– cladding – assembly– painting – demolition– restoration etc. . .– repair

Bremen University, Germany.Test tower.For drop test overa height of 120 m.

MC1326


productinformation

M-614

12/942/4


PA238.4

1. Platforms

1.1. Circular platforms, which fit completely round the tower.Used previously on cylindrical towers (see PA/238.4).

1.2. Angled platforms for conical towers and those withaccess ladders, projections, etc., which do not allowthe use of circular platforms (see PA306.1).

1.3. Straight platforms (standard ALTA), also availablewith more than one deck, used on small diametertowers, or during assembly work, e.g. installing anadvertising panel (see PA675.1).

PA306.1 PA675.1

MC1326


productinformation

M-614

12/943/4


2. Suspension systems

2.1. Parapet clamps, providing the parapet is sufficiently robustto withstand the loadings.

2.2. Suspension frames, installed using a crane or helicopter(see product information M-066).

2.3. Monorail, positioned at the top, around the outside of thetower using standard components of our DELTA suspen-sion beam system.

PA675.2

PA676

MC1326


productinformation

M-614

12/944/4


2.4. On fabricated metal constructions,it is very often possible to use standardcomponents of our DELTA mobile sus-pension system:

– photos left:the suspension beam is fixed to theservice platform of the chimney.

– photo below (right):anchor point comprising a DELTAbeam and 2 DELTA cross-beams, towhich are attached the lifting and safetywire ropes, which pass through anopening in the flooring of the serviceplatform.

PA677

PA677.1 PA677.2

MC856


productinformation

M-322110/941/1

access equipmentfor chimneys

PA254.1

PA254 PA254.4

Application: Inspection and maintenance of exteriorof 2 chimneys

Site: Mae Moh Lignite Power Plant,Lampang/Thailand

Customer: EGAT – Electricity GeneratingAuthority of Thailand(Electricity company)

Agent: Teo Hong Silom Co, Ltd, Bangkok/ThailandEquipment:– 1 ALTA "S" cradle (made up of 2 standard 3 m sections, one

2 m section and 2 special angled sections) and fitted with 3TIRAK T-1000 machines with central control, 3 BLOCSTOPBS 15.30 secondary safety devices and 6x100 m wireropes.

With the 2 angled sections the main cradle fits the chimneyoutline perfectly.Height 85 m; diameter at ground level 6.5 m.

Note: the small platform (photo PA254.4), which served as anextra cradle was manufactured locally and fitted with TIRAKmachines, BLOCSTOP safety devices and wire ropes, suppliedby SECALT S.A. Luxembourg.

MC832

Application: Repair work on a water towerSite: Water tower at Oberndorf/GermanyContractor: Tiber Traub GerüstbauEquipment: – 1 ALTA 4 m platform fitted with TIRAK T-500

hoists and BLOCSTOP safety devices– 2 parapet clamps


En the first place, the work with the platform was to check theanchor points of the cladding after a fire in the insulation layer.Then it was used for refitting the insulation and the fixing of thenew cladding. The materials were lifted to the work point by acane installed at the top of the reservoir.

The platform was suspended from parapet clamps. Theparticular anchorage of these is to be noted. In fact, as theparapet clamps applied pressure against the outside on theinsulation layer, it was necessary to reduce the pressure to theminimum. To this effect the clamps were supported on theinside against the central inner wall using props (see photoPA239.1).Height of work: up to 40 m.


productinformation

M-312110/941/1

access equipmentfor water towers

PA239

PA239.1

Equipment supplied byGREIFZUG GmbH,Bergisch Gladbach/Germany.

MC829


productinformation

M-309111/941/2

access equipmentfor towers

PA238.1

PA238 Application supplied par GREIFZUG GmbH, Bergisch Gladbach/Germany PA238.2

Application: Inspection and maintenance of lighthouses.

The water and navigation services of the City of Hamburg/Germany, has equipped itsmaintenance services with a modular cradle system which can be assembled into circularor angled platforms for the different types of lighthouses, up to a maximum diameter of4 m.

The platforms comprise standard 2 m rectangular sections and 60° and 90° angle sections.The different assemblies are shown on page 2/2.

The platforms are fitted with motorised TIRAK machines and, as with all circular platforms,they are suspended by 3 main lifting wire ropes.

MC829

Modular sections for circular or angled platforms.Various assemblies.

Circular platform with a Circular platform with amaximum diameter of 2.4 m: maximum diameter of 3 m:

4 rectangular sections (1) and 6 rectangular sections (1) and4 angle sections 90° (2) 6 short 60° angle sections (4)

Circular platform with a Angled platform for hexagonal tower:maximum diameter of 4 m: 2 rectangular sections (1) and

6 rectangular sections (1) and 1 short 60° angle section (4)4 long 60° angle sections (3)


productinformation

M-309111/942/2

access equipmentfor towers

2

1

4

1

3

1

1

4

FMC685


productinformation

M-068109/941/1

facadebuilding

PA49

PA49.1

Application: Resurfacing of industrial chimneysSite: BEWAG, Berlin/GermanyCustomer: Kienzle, Pforzheim

Equipment: – 1 special circular suspended platform, dia.7.80 m equipped with 8 TIRAK T-1000 hoistswith wire ropes and BLOCSTOP BS15-30 safetydevices.

– 8 special suspension systems.


External resurfacing of industrial chimneys with aluminiumpanels. Chimney height: 120 m, diameter: 7.20 m.

The suspended platform is formed by 8 standard "C" shapestirrups and 2 m long curved suspended sections.

Work on the first chimney was carried out by means of traditionalscaffolding (see the photographs).

Work on the other chimneys was carried out by means of theabove equipment.

Time required to install suspended platform 200 hrs

Time required to install traditional tubularscaffolding 860 hrs

Savings in installation time only 660 hrs

MC837

Application: Finishing work inside and outside a power stationchimney.

Customer: Hindustan Construction Co. Ltd,Rihand Nagar/India

Equipment: 1 ALTA-type 6 m platform1 ALTA-type 2 m mono platformEach platform is supplied with TIRAK T-1000machines, BLOCSTOP safety devices, main lif-ting and secondary safety wire ropes, and guideropes.

Description of application:The 6 m platform allowed access to the different levels during theerection of the multiflue steel chimneys. Wooden platforms(photo PA243.2) are installed at various levels inside the chimneywith a cut-out for clear passage of the ALTA platform. At thelower part of the chimney interior, the platform was hold againstthe chimney wall by guide ropes.

The 2 m Mono platform (photo PA242) is installed outside for jobssuch as installation of lighting, wind deflector plates, painting,etc.

The platforms are suspended from mobile parapet clamps.

Height of chimney: 220 m.

Application completed by TRACTEL TIRFOR INDIA, New Delhi


productinformation

M-316110/941/1


PA242

PA242.5 PA242.2

FMC683


productinformation

M-066110/941/1


Application: Work on the inside of an industrial chimneySite: Midkraft-Vølund Project, Arhus/Denmark

Equipment: 3 TIRAK T-500 machines, speed 18 m/min,3 special TIRAK supporting frames3 BLOCSTOP overspeed safety devices1 central control panel3 lifting wire ropes, 215 m long3 safety wire ropes, 70 m long


3 TIRAK machines lift the working platform which is used toremove the internal chimney lining in order to replace it withmetal ferrules.

Capacity doubled by use of sheave blocks.

Height of chimney: 80 meters; 6 m dia.

Platform capacity: 1 ton.

The installation of supporting frames was carried out withthe assistance of a helicopter (see picture above).

Spreader bar

safetywire rope

suspensionwire rope

TIRAK

Suspensionframe

Platform withapertures for 3chimneys shafts

FMC728


productinformation

M-093111/941/1

access equipmentfor lighting masts

RO61

Application: Maintenance of public lighting mastsCcutomer: SCHREDER S.A., Ans/BelgiumActivity: Manufacturer of public lighting installationsEquipment: 1 complete assembly comprising:

1 supporting beam with 1 TIRAK T-500 winch1 wire rope reeler,1 wire rope 40 m long,1 reversing sheave,

Description of application:In this technique of mobile lighting supports, the lightingequipment is lowered to ground level for repairs or mainte-nance. The support normally hangs on wire ropes which areused for lifting and lowering by means of an electric winch fixedto the base of the mast.The new idea was to replace the winches in the mast by TIRAKswhich can service an installation consisting of several masts,thus cutting down investment costs and allowing the winch tobe kept in an appropriate storage place.The assembly comprises a TIRAK winch, a wire rope reeler andthe wire rope, controls and fittings for quick installation. Its totalweight does not exceed 55 kg.To put into operation, the supporting beam is introduced in themast through an opening and anchored by a pin. The TIRAK'selectric supply cable is plugged in and the TIRAK wire ropeconnected to the supporting wire rope of the mobile lightingsupport.

1275

réa Ø 120

TIRAK

535

BLOCSTOP safety device

wire rope reeler

MC793


productinformation

M-291110/941/2


PA220

PA220.1

Application: Inspection and maintenancework on the interior of two OLPchimneys.

Site: Gondrange Steelworks, FranceClient: SACILOR, steelworks and rolling

mills, FranceEquipment:2 sets of equipment each comprising:– 1 conveyor (A)– 1 travelling trolley (B) with one lifting rope

(TIRAK T-1020 + overspeed BLOCSTOPsafety device and motorised rope winder)and one safety rope (BLOCSTOP BS 20.303safety + manual TIRFOR hoist and motorisedwire rope reeler).Length of lifting wire rope: 50 m, dia. 9 mm.Length of safety wire rope: 60 m, dia. 9 mm.

– Special cradle (C) with platform 1.50x1.10 mand two auxiliary floor elements.

– 1 pneumatic TIRAK TA-820P on a frame.

Each piece of equipment is installed at level +74 m.The interior of the chimneys is accessible by a trapdoor.Height of work: 35 m.The cradle is hung from the travelling trolley which moves alongthe conveyor 6 m long.Permitted weight of the cradle: 265 kg, = 2 people and 65 kg of equipment.The cradle is manoeuvred at level +70 m.Once on the inside of the chimney it is guided by 8 regulatingwheels.

The manual TIRFOR which is permanently mounted on the safetywire rope enables the worker to get out of the cradle in any caseof failure e.g. power failure.

The pneumatic equipment consists of a TIRAK winch with a wirerope reeler mounted on a frame. This equipment is mounted atlevel +70 m and used mainly for the manoeuvring of materialwithin the chimney.Nevertheless it can also be used as a safety winch to bring upthe cradle in the case of a breakdown.

MC793


productinformation

M-291110/942/2


B A

Level 74000

Level 70 000

1500

1300100 100

C

C

2000

2200

1500

MC494

Application: Refractory lining of chimney.Site: Suez Cement Company, Suez/Egypt.Customer: The Arab Contractors Osman Ahmed

Osman, Cairo/EgyptEquipment: – 1 circular telescopic working platform,

capacity 5 tons, weight 8.6 tons– 6 TIFOR TU-32H machines– 3 two-way power packs– 6 safety devices BLOCSTOP BSE 35.30 with electromagnetic control– 12 wire ropes, length 100 m, dia. 16 mm– 6 wall suspension clamps

Description of application:Problem: Carry-out the 60 cm thick refractory lining of a 100meter high chimney at the Cement Works under constructionin Suez. The working platform has to be continuously adaptedto the diameter of the chimney which is 12.8 m at the bottomand 5.6 at the top.Solution: Use a telescopic platform made of twelve radialbeams which may be extended and dismantled in 3 piecesand a removable floor. The platform is lifted by 6 TU-32HTIRFOR machines controlled from 3 two-way power packs. Sixsafety wire ropes are used in connection with 6 BLOCSTOPsafety devices operated through electromagnets.The platform is suspended from 6 upper walls clamps attachedto the top of the chimney. Personnel and material are broughtup to the working platform by an independent elevator thatgoes through a central opening in the platform.


productinformation

M-145110/941/1


5,56

85 m

55 m

0 m

0,50 12,80 0,50

TIRFOR TU–32HBLOCSTOP electro–magneticBSE 35,30

100 m

FMC731


productinformation

M-096110/941/1


610

610.1

Application: Guniting of Hot-Blast Furnace Cowper ChimneyCustomer: ARBED S.A., LuxembourgActivity: Steel IndustrySite: Blast Furnace, Esch-BelvalEquipment: – 3 TIRAK on a special frames with

BLOCSTOP safety devices– 3 automatic BLOCSTOP safety devices– 4 manual TIRFOR TU-32 machines,

with BLOCSTOPDescription of application:Problem: Guniting of Cowper chimney of the new BlastFurnace at Esch-Belval. Height: 72 m. Diameter: 4 m at thebottom, 3 m at the top.Solution: A custom built 3-ton capacity working platform issuspended by 4 TIRFOR TU-32 machines (photo 610). Thediameter of this platform is extendable from 3 to 4 m. A 600 mmhole is provided in the centre of the platform for an elevatorsuspended by 3 TIRAK machines which brings men andmaterial up and down (photo 610.1). The TIRAKs are attachedto the platform by means of a special frame fitted withautomatically operating BLOCSTOP safety devices mountedon safety wire ropes. The TIRAK machines are controlled froma central control panel on the platform.The customer finds that this is the ideal solution for any liftingjob in large-diameter chimneys. Using high-capacity, but low-speed TIRFOR machines for the heavily loaded, but slowrising working platform, and high-speed motorised TIRAKmachines for the elevator which brings men and material tothe working platform.

Ø 3000

Ø 600Ø 4000

IPE 270

FMC730


productinformation

M-095110/941/1


Application: Chimney inspectionCustomer: Babcock-Bau, Oberhausen/GermanyActivity: General contractorSite: Nuclear Power Plant, Arzberg/GermanyEquipment: 1 completely enclosed elevator cage with

door guide rollers, and all electrical controland safety equipment, fitted with 1 TIRAK T-1022 hoist, 2 BLOCSTOP safety devices, and200 m long wire rope.

Description of application:Problem: Installation of an elevator in the 190 m highchimney of the Nuclear Power Plant. The chimney (bottomdia. 6.5 m, top dia. 3.9 m) is formed by two concentricannular walls.Solution: A TIRAK is used to motorise the elevator whichruns along a rail between the two walls. It has a platform of0.5 m x 1 m. The complete cage is 2 m high and iscompletely enclosed by wire netting.The TIRAK and the BLOCSTOP safety device are placedunder the platform. Weight of the elevator 340 kg, capacity160 kg or 2 men + 10 kg material. Speed 18 m/min.The elevator is fitted with a door to give access to circularplatforms installed every 15 to 20 meters, and is used forremoving test samples from the wall during mandatory bi-annual inspections and for maintenance of aircraft warninglights installed at the top of the chimney.

MC831


productinformation

M-311110/941/2

access equipmentfor petrochemical furnace

Application: Maintenance inside a petrochemicalfurnace, to a height of 42 m.

Site: Sannazzaro de' Burgondi, Pavia/ItalyCustomer: Po-Refinery, ENI GroupEquipment: 1 compact frame comprising:

1 pneumatic TIRAK TA-800P,2 wire rope reelers and1 BLOCSTOP secondary safety device.


Problem:Manoeuvre a cradle in the greatest safety inside thepetrochemical furnace for maintenance of the refractorylining.

Solution:The solution originally envisaged by the customer was fora conventional drum winch mechanical safety device onthe cradle. This solution had to be rejected because thesafety device risked damaging the refractory lining.Moreover, in case of a breakdown, the arrangements forthe emergency recovery of the personnel were notsatisfactory.

The final solution was for a compact framework introducedat the top of the furnace. The frame is fitted with apneumatic TIRAK with a wire rope reeler on the mainlifting rope and on the secondary safety wire rope isfitted the BLOCSTOP safety device, a hand operatedwinch and a wire rope reeler driven by the TIRAK ma-chine.

This solution met perfectly the required safety criteria,allowing, for example, the cradle to be lowered by the airmotor acting as a generator, in case of a break or failurein the compressed air supply. Moreover, in case of anybreakdown on the main lifting rope (e.g. TIRAK or wirerope) the cradle is automatically held by the BLOCSTOPon the secondary safety wire rope, and it can bemanoeuvred using the manual winch.

The pneumatic TIRAK was specified for safety reasons inpotentially explosive conditions.

Equipment supplied by TRACTEL ITALIANA,Cologno Monzese, Milan/Italy.

1590

1130

1220

cradle

838

1920

016

0011

008

4142

8

9120

500

43561

41910

33941

22933

21333

2133

Compact framework withTIRAK and BLOCSTOP safetydevice and wire rope reelers(see details on page 2/2)

BLOCSTOPsafety device

manual winch

main liftingwire rope

MC831


productinformation

M-311110/942/2

access equipmentfor petrochemical furnace

compact frameworkwith TIRAK and BLOCSTOP safety device

and wire rope reelers

secondary wire rope reeler(operated by the TIRAKthrough a chain connection).

secondary safety wire rope

drive chain

automatic reeler forthe main lifting rope

drive wheelfor chain

TIRAK

260

280

500

660

500

850

1590

660

1000

end of wire rope sensor

BLOCSTOPsecondary safety device

main lifting wire rope

limit switchadjustable end stop

application references re imneys, towers · application references reservoirs, silos, chimneys,...

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