At many-storeyed building usually apply ring system of installation rastvoroprovodov (fig. 6). On a vertical two lines rastvoroprovodov - pressure head and return, connected above a half ring establish. On a return strut are made poetazhnye cranes through which dressers receive a solution. Not disassembled solution flows down downwards, arrives in the account bunker and again begins the way upward.
a Fig. 6. Ring system of transportation of a solution :
And - an assembly diagramme; - the scheme of work of the three-running crane;
1 - butt connection of pipes; 2 - zaglushina; 3 - a hose; 4 - poetazhnyj the bunker capacity of 1 m 3 ; 5 - a tray for solution delivery in manual container; 6 - the technical running crane; 7 - poetazhnyj rastvoronasos productivity 1,2м 3 /ch; 8 - a plaster nozzle; 9 - a hose in length to 20 m; 10 - rastvoronasos productivity of 6 m 3 /ch
On fig. 7 the constructive scheme rastvoronasosov is resulted. In the pump cylinder there is the rubber diaphragm closing an input in the working chamber.
a Fig. 7. Rastvoronasosy С-251 (at the left) and С-232 (on the right) :
1 - the electric motor; 2 - the water chamber plunzhera; 3 - the air valve; 4 - the union for rastvoroprovoda; 5 - a manometre; 6 - the loading bunker; 7 - a pipe to the bunker; 8 - the air chamber
Apertures above and in the bottom of this chamber close spherical valves. The space round a diaphragm is filled by water. At a soaking up piston stroke (plunzhera) the diaphragm does not test pressure of water, therefore the solution from the bunker arrives in the working chamber. At a delivery course the piston is pressed on water, by water - on a diaphragm. The solution is squeezed out through the top valve and an air cap in a pressure head line rastvorovoda.
The solution Transported on pipes should be plastic, for it it is necessary to enter into weight plastifitsirujushchie additives.
If shtukaturam it is necessary bystroshvatyvajushchijsja a solution, into weight enter the additives accelerating shvatyvanie, more often plaster. But to prevent premature tverdenie, plaster should be added in a solution on a place and to submit on floors separately. For this purpose air brought to an atomizer, is sated with dry plaster by means of special pneumatic dozatora ДТС-1.
Air spraying a solution at its ejection from a tip of an atomizer, simultaneously mixes a solution with plaster, transforming it in izvestkovo-plaster.
In a cellar establish pneumatic shnekovye feeders SPK from which in the top floors pipelines in diameter of 50 mm are stretched. On the top floor the pipeline is attached to the tank of type a cyclone, covered with the filter from a sacking. In the bunker-cyclone air leaves through the filter made of cloth, and plaster settles. In the bunker bottom the pipe on which plaster samotekom goes downwards is built in. To open latches available on everyone floor in a distributing pipe enough, and plaster will arrive in poetazhnyj a reception chest, whence as required it add in a solution. Connection it occurs directly in a plaster atomizer.
(fig. 8) puts the Atomizer in action being on a floor rastvoronasos small capacity which as it was already told, enters into the plaster unit (in its structure is the compressor and the electric motor).
a Fig. 8. An atomizer of pneumatic action with the central giving of air :
1 - the case; 2 - a replaceable tip; 3 - a material hose; 4 - an air tube; 5 - the gate; 6 - the lock screw
Two hoses approach To an atomizer. On one from the compressor compressed air arrives, and in this stream at need place dry plaster. On the second with the help rastvoronasosa submit a solution from poetazhnogo the bunker.
Thus, the solution is brought directly to a place of work of the dresser. It needs to include only an atomizer and to put weight on a wall - to conduct soplovanie.
Dressers use an atomizer and other design - beskompressorioj (fig. 9). Prepare it from a gas pipe piece. On one end the carving is cut and on it screw muftu with a side. The side presses to a pipe a rubber diaphragm in the thickness of 3 mm. In it the knife makes a cross-section cut in length 15... 20 mm, the second end of a pipe it is connected with rastvoroprovodom.
As it is not difficult to guess, beskompressornaja the atomizer is unsuitable for giving of a solution with plaster. In it there is no second union where it would be possible to connect a hose with compressed air on which dry plaster moves.
To beskompressornoj to an atomizer there is very convenient adaptation. It is applied when it is necessary to process the mechanised way narrow piers, and a nozzle after all scatters a solution a wide cone, and the places which are not subject to plaster can be polluted.
a Fig. 9. An atomizer beskompressornaja and bryzgogasiteli to it :
And - an atomizer; - bryzgogasiteli A.Borschevsky's designs; in - bryzgogasitel A.Shaulskogo's systems; 1 - the atomizer case; 2 - a ring; 3 - a diaphragm; 4 - nakidnaja a nut; 5 - a cone-brazgogasitel; 6 - a nut; 7 - a lining; 8 - the plug; 9 - the screw; 10 - a pipe; 11 - a grid bryzgogasitelja
a Fig. 10. Quick disconnect connection for hoses :
1 - a connecting branch pipe; 2 - hoses; 3 - a ring with probes; 4 - a ring with unprofitable laths; 5 - probes; 6 - the handle
The nozzle with bryzgogasitelem Here helps. The nozzle head is closed by a cone made of a sheet steel or aluminium in the thickness 1... 2 mm. The cone truncated, comes to an end with the plug which is put on a pipe and fastens the lock screw. Such nozzle allows to put a solution a narrow strip.
Bryzgogasitel can be not only konusnym, and with a grid giving dispersion in the form of a flat torch.
By means of hoses the worker can process any plane. At need hoses increase or shorten, earlier it delivered many efforts. Connected hoses by means of wire skrutkov then began to do special collars naboltah. Now there are many different quick disconnect connections. I will result only one of these devices applied by the Moscow dressers (fig. 10).
So, on building all is ready to acceptance of a solution which to us have brought on a dump-body truck with central rastvornogo knot. But do not hasten to start up at once this weight in business. By transportation it was inevitably stratified - heavy components have fallen on a bottom, any part of cement milk has flowed away through cracks. The brought solution should be mixed in a box or rastvorosmesitele with addition of dry cement and water.