SE528772C2

SE528772C2 - Spray painting booth system, includes boards and screens to reduce box opening in order to volume of ventilation air

Info

Publication number: SE528772C2
Application number: SE0402166A
Authority: SE
Inventors: Hans Soederberg
Original assignee: Sprayway Maskin Ab
Priority date: 2004-09-10
Filing date: 2004-09-10
Publication date: 2007-02-13
Also published as: SE0402166D0; SE0402166L

Abstract

An adjustable system of boards and screens is used to reduce the horizontal and vertical suction surface area in an open spray booth. The box opening is preferably adapted to the size of the object being painted. The horizontal velocity of the air flow in the box opening is preferably altered using an adjustable throttle mounted in the suction outlet channel or by varying the suction fan speed.

Description

m X3 <1 'se to Kort beskrivning av ritningarna En föredragen utfóringsfonn av uppﬁnningen kommer i det följande att förklaras närmare med hänvisning till bifogade bilder, på vilka: Fig. l. visar en sprutbox (l) med hel öppning och filter på motstående väggyta, utsugningskanal bakom ﬁlterväggen och där operatören står inne i sprututrymmet och sprutlackerar ett företrädesvis på golvet placerat målningsobjekt varvid uppkommen sprutdirnma ventileras vidare ut genom ﬁlterväggen. m X3 <1 'se to Brief description of the drawings A preferred embodiment of the invention will be explained in more detail below with reference to the accompanying pictures, in which: Fig. 1 shows a spray box (l) with a full opening and filter on the opposite wall surface , extraction duct behind the filter wall and where the operator stands inside the spray chamber and spray-paints a painting object preferably placed on the floor, whereby the resulting spray dirnma is ventilated further out through the filter wall.

Fig. 2. visar ett sprutskåp där operatören står utanför sprututrymrnet och lackerar inne i skåpet med sprutobjektet företrädesvis placerat på det horisontella bordet och uppkommen sprutdimma ventileras ut genom skåpets filtervägg. Operatören har kroppen utanför boxöppningen och armarna med sprutapparat innanför.Fig. 2 shows a spray cabinet where the operator stands outside the spray chamber and paints inside the cabinet with the spray object preferably placed on the horizontal table and the resulting spray mist is vented out through the filter wall of the cabinet. The operator has the body outside the box opening and the arms with the sprayer inside.

Fig. 3. och 4. visar hur uppfinningen kan användas i en sprutbox där bord, två väggskärmar och en takskärm kan förflyttas stegvis för att variera tvärareans öppningsstorlek.Figs. 3 and 4 show how the invention can be used in a spray box where a table, two wall screens and a roof screen can be moved step by step to vary the opening size of the transverse area.

Beskrivning av föredragen utföringsforrn Såsom framgår av Fig.4, omfattar reduktionsutrustningen ett höj- och sänkbart horisontellt monterat bord (7), en i taket nedfällbar skärm (8) samt av Fig.3, en på vardera sidan monterad vikvägg (3) och (4).Description of the preferred embodiment As can be seen from Fig. 4, the reduction equipment comprises a height-adjustable horizontally mounted table (7), a screen (8) which can be lowered into the ceiling and Fig. 3, a folding wall (3) and mounted on each side. 4).

Bordet (7) har samma bredd som boxens bredd (B) och är höj- och sänkbart företrädesvis motsvarande ﬁån golvnivå till normal arbetshöjd, ca 90 cm över golv. Vikväggarna (3) och (4) har samma höjd som boxens höjd (H) och kan vikas ut i två lika stora breddelar vardera och företrädesvis, att tillsammans, begränsa breddöppningen upp till ca 50% av totala bredden. Takskärmen (8) har samma bredd (B) som boxen och kan fällas ned att upptill täcka ca 15% av boxens totalarea.The table (7) has the same width as the width of the box (B) and can be raised and lowered, preferably corresponding to ﬁ from floor level to normal working height, approx. 90 cm above floor. The folding walls (3) and (4) have the same height as the height of the box (H) and can be folded out into two equal widths each and preferably, together, to limit the width opening up to about 50% of the total width. The roof screen (8) has the same width (B) as the box and can be folded down to cover about 15% of the total area of the box.

Ex.: En standardbox kan anses ha en bredd av 2,4m (B) och en höjd av 2,2m (H) som ger en tvärsnittsarea av 5,28 m2 (A). Ett normalt rekommenderat luftﬂöde (V) av 0,4m/sek över hela arean ger i exemplet ett totalﬂöde (F) av ca 7.600 mB/tim En maximal reduktion med uppﬁnningen enligt beskrivningen ovan ger en flödesreduktion (R) med ca 75% eller 5700 m3/tim.Ex .: A standard box can be considered to have a width of 2.4m (B) and a height of 2.2m (H) which gives a cross-sectional area of 5.28 m2 (A). A normally recommended air flow (V) of 0.4 m / sec over the entire area gives in the example a total flow (F) of approx. 7,600 mB / h. m3 / tim.

Claims

Patent claims

1. Reduction additive for ventilation hatches arbets in work boxes intended for industrial spray painting, a so-called spray box, which is present in the form of screens and work tables and by means of which the transverse area in the spray box can be shielded to different degrees to adapt it to the size of the spray object. are so arranged that in an open spray box a combination of box or cabinet is obtained with adjustable vertical and horizontal screens and a height-adjustable work table, which work table consists of one in front of an alter wall (9) mounted and in height (bra) from zero to 90 cm adjustable table (7), with width corresponding to the width of the box (B), depth (D) corresponding to a normal working depth of about 60 cm and on the lower part of the table a shutter that automatically covers and prevents air ﬂ fate of the entire surface that the lower surface of the table forms between the walls of the spray can when moving within its height adjustment area. Reducing additive according to claim 1, characterized by a vertical folding wall (3,4) mounted on each side of the spray box made with adjustable width (VB) to about 25% of the total spray box width (B) per folding wall, in front of and against the table (7) exterior, which folding wall can be dipped 90 degrees, from following the spray surfaces of the spray box in the unfolded position and stopping in the extended position against the outer edge of the adjustable table (7). Reduction additive according to claims 1 and 2 (8) over the entire width of the spray box (B) and with a height (SH) of approx. 30 cm, which screen can be folded 90 degrees from horizontal position to vertical position downwards in front of the folding walls (3,4), in line with the outside of the table (7).