DE1897327U - FLOATABLE SANDBASTER FAN AND REAR SUCTION DEVICE. - Google Patents

Description

Floatable sandblasting fan and back suction device.

The invention relates to a sand jet-G-e bubble and back suction device.

In the case of ships in particular, it is common, for. Bo for Remove old paint and use a sandblasting blower to remove rust. The demand of shipping for impeccable and faster implementation of this work led to an ever more complex equipment park, that of the sand drying drum via the compressed air compressors, sandblasting buckets, exhaust fans, dust separators, suction conveyor systems, Paint spraying devices to dry air devices is enough »All of these devices had to be transported to the construction site With the help of the shipyard cranes, they can be set up and connected to the shipyard-side energy supply before the actual Blasting work could be started. The energy requirement of the devices of several hundred KW means a strong one Load on the power supplies at the docks and quays, which are not always designed for such high outputs. The availment of the shipyard cranes did not only cover the

build the system, but also during the blasting process New blasting material had to be provided on a regular basis and the contaminated blasting material / rust mixture had to be transported away again are - quite apart from the repeated relocation of the devices, if a ship of great length is, for example, derusted should.

Accordingly, extensive sandblasting work on new ships or repair ships could only be carried out in close proximity Cooperation with the shipyards, including the energy supplied by the shipyard and the transport work were not inconsiderable cost factors.

The purpose of the invention, on the other hand, is to create a sandblasting blower and Eücksaugeexnrichtung) which works independently and largely automatically and continuously, and by means of which extensive sandblasting work can be carried out in a shorter time and cheaper and better than before.

According to the invention, this purpose is achieved by a A floating body arranged sandblasting blower and back suction device achieved at least one approximately in the Blasting material storage bunker arranged in the middle of the float, from which blasting material via a conveying device and a drying drum into one to the longitudinal axis of the floating body symmetrically arranged day bunker is promoted, and also downstream of the day bunker to the longitudinal axis of the float; having symmetrical blasting machines that

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at least two pressure chambers to be charged periodically had.

* ■ To get the goods mixed with rust particles or the like from

To remove the job, a back suction fan is provided according to one embodiment of the invention, the a separator is connected downstream, which is connected to the day bunker via a sieve and an air sifter stands.

(Tt According to a further embodiment of the invention, igt ..

a cyclone separator connected to the wind sifter is provided for cleaning the transport air, the one Uaßabscheider is connected downstream.

"* The sieve, the wind sifter, the day bunker, the jet

machines, the back suction fan and the separators are preferred arranged in a tower structure arranged symmetrically to the longitudinal axis of the float.

An embodiment of the invention is shown below Hand drawing example explained.

Fig. 1 is a schematic side view of the sandblasting blower and suck back device according to the invention, with the float removed.
Fig. 2 is a somewhat reduced scale

schematic front view of the device according to FIG

'* Fig. 1, the device in the working

position next to a z. B. is shown lying to be derusted ship.

., In the drawing there are two to the longitudinal axis of the swim

body S (Pig. 2) symmetrically arranged blasting material storage bunker 1 shown, the appropriate to their Discharge chutes 2 provided at the lower end, for example vibrator chutes, are continuously and controllably emptied can. From the discharge chutes 2, the blasting material arrives on a common conveyor belt 3. On the conveyor belt 3, the still moist blasting material, which is also a mixture of two types

C, can be, via a bucket elevator 4 and another conveyor

band 5 conveyed into a drying drum 6, the bucket elevator 4 and the drying drum 6 on the side of the floating body S are arranged. In the drying drum 6 is the The water content of the blasting material evaporates, as it is only possible to work properly with absolutely dry blasting material.

The dried blasting material is then delivered from the drying drum 6 to a so-called pusher transmitter 7, which conveys it through a sieve 8, for example a vibrating sieve, into one or more daytime bunkers 10. The blasting material runs from this to the blasting machines 11. In these, the blasting material is continuously mixed into pressurized air via double locks in a line, so that continuous blasting is possible. The blasting material then emerges “ from nozzle 12”.

Since when derusting ship walls, these walls are in

■ '"must be preserved at the same time in most cases,

it is desirable to provide a back suction system, as that

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with the rust particles or the like mixed blasting material from

must be removed from the job before it can be preserved

can.

For this purpose a back suction fan 15 (Fig. 2) is provided, which sucks the food or the like mixed with the food particles or the like from the work site into a separator 13, preferably a cyclone separator, via appropriate lines. In this, the coarse grain, for example, the second cut wire is ejected, after which the still

blasting material containing further foreignbeatand parts falls through a double lock 14 onto the vibrating screen 8. On this, coarse impurities, such as gloves, <bolts, electrodes, G-lühbirnen u. Like. Intercepted that

due to the high suction of the fan 15 and the large γ.

Cross-sections of the return lines were dragged along. That

The sieved material then falls through the wind sifter 9 'into the day bunker 10 so that it can be used again. The task of the air classifier 9 is to keep the jet

■ '" can be freed from any dust that is still adhering to them, and they cannot

to secrete reusable micro-particles, - "ie

- ·· * · * ■ Transport air is in a separator before it enters the open air 16 dedusted with a downstream wet separator. This ensures that the suction system works largely free of dust, so that the operating personnel do not

■ / · more like in the past the harmful fine dust

is exposed.

The vibrating sieve 8, the Yfind separator 9, the daytime

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Bunker 10, the blasting machines 11, the ßücksaugegebläse 15 and the separators 13 and 16 are in one to the longitudinal axis of the floating body S symmetrically arranged tower structure T arranged. One or more such tower structures can be used T be provided, depending on the desired beam and suction capacity. The day bunkers can each have one or supply several blasting machines 11 "

Fans can also be installed in each tower structure I, which expand during the blasting Extract the air around the operators leading the jet nozzles To enable a clear view of the surface to be radiated at all times, these fans are on the pressure side also connected to a hate separator »

Furthermore, portable dry air devices can be provided to protect larger blasted areas from corrosion to protect by condensation. With the help of these devices, the blasted surfaces can be kept in a bright white condition for days and after all blasting work has been completed carefully dedusted and coated in one operation. The subsequent coats of paint are then Applied to dust-free surfaces so that they last longer.

The hull is equipped with an appropriate self-propulsion system and a further energy generation system provided, by means of which the necessary for the operation of the sandblasting blower and Eücksaugeeinrichtung Energy (electrical energy, compressed air, etc.) is generated ".

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The invention of half time can be carried out as a result of the independent and largely automatic operation Sandblasting in about that earlier customary when using equipment was required. This reduced expenditure of time is achieved although a bare metal surface is obtained, which today is mostly required instead of a purely metallic surface.

With the sandblasting G-ebläse- and according to the invention Rücksaugeinriehtung can not only ship exterior surfaces and cargo tanks, but also onshore steel structures, bridges and hydraulic steel structures or ship hulls lying on Helgen. New coats of paint to be applied hold due to the extraordinarily good design rusting longer than before "

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Claims (12)

.4 claims for protection 1.) Floatable sandblasting device and return device, characterized by at least one blasting material storage bunker arranged approximately in the middle of a floating body (1) from which blasting material via a conveying device and a drying drum (6) into one to the longitudinal axis the floating body symmetrically arranged day bunker (10) is conveyed, and through the day bunker (10) downstream, Blasting machines arranged symmetrically to the longitudinal axis of the floating body, each of which has at least two have pressure chambers to be charged periodically. 2.) Device according to claim 1, characterized _a that the conveyor device at the lower end of each storage bunker (1) provided and on a common conveyor belt (3) conveying discharge chutes (2) and a further conveyor belt (5) in the drying drum (6 ) has conveying bucket elevator (4) 3o) device according to claim 1 and 2, characterized in that that the bucket elevator · (4) and the drying drum (6) are arranged on the side of the float ο 4.) Device according to one of claims 1 to 3 »marked by a pusher transmitter (7) connected downstream of the drying drum (6)> an air sifter (9) arranged above the day bunker (10), upstream of which a sieve (8) is connected is. ff! Uli ff Uli, UKaSSH ".-, -. -Ϊ- iWiAW- 5.) Device according to one of claims 1 to 4 »characterized by a back suction fan (15) and one this downstream separator (13) »the over the sieve (8) and the wind sifter (9) is connected to the day bunker (10). 6o) device according to claim 5 »characterized in that that the separator (13) is a cyclone separator. 7.) Device according to one of claims 1 to 6, characterized by one with the air classifier (9) in connection standing cyclone separator (16) used for cleaning the transport air, followed by a wet separator is. 8.) Device according to one of claims 1 to 71 characterized characterized in that the sieve (8), the wind sifter (9), the day bunker (10), the blasting machines (11), the back suction fan (15) and the separators (13 and 16) in one arranged symmetrically to the longitudinal axis of the float Tower structure (T) are arranged. 9.) Device according to one of claims 1 to 8, characterized in that two tower structures (T) arranged symmetrically to the longitudinal axis of the floating body are provided are. 10.) Device according to one of claims 1 to 8, characterized characterized in that two juxtaposed - open day bunkers are provided in each tower. »-V *!« <■■ ¹ VTV ... I ■ ilt --- ·. .- ·.-.— j. < . ι 11.) Device according to one of claims 1 to 10, characterized in that two to the longitudinal axis of the floating body symmetrically arranged storage bunker (1) provided are. 12.) Device according to one of claims 1 to 11, characterized in that between the cyclone separator (13) and the sieve (8) a double lock (14) is arranged is.