SU956046A1 - Unit for applying protective coatings on articles - Google Patents

Description

(54) INSTALLATION FOR APPLICATION OF PROTECTIVE COATINGS ON THE PRODUCT

12 The invention relates to equipment for the deposition of protective coatings on products and can be used in any industry. yosti. . . . . A known device for applying protective coatings on products, comprising a housing, an exhaust ventilation system, a hydraulic filter connected to a pump unit, a bath with water and a strainer 1. In a known installation, the bath serves as a water accumulator circulating in the system of a vacuum pump unit -Hydrofilter bath. Netted filter divides the bath into two compartments clean. The clean dirty compartment is connected to a pump unit that supplies water to the hydraulic filter. From this compartment, water is drained into the sewer. The disadvantages of the known installation include the fast clogging (sticking of the bath mesh filters with paint and coagulum, both floating on the surface of the water and in suspension, and a significant part of paint or other substances used in The coatings (or other technological operations carried out in the installation) are carried away into the canalization process by draining the water from the bath. The aim of the invention is to prevent the screen filter from sticking with paint and reducing the entrainment of suspended and bottom-settled The purpose is achieved by the fact that in an installation for applying protective coatings on a product comprising a housing, an exhaust ventilation system, a hydraulic filter connected to a pump unit, a water bath and a strainer, the bath is equipped with two One is 6 tons of another bottom and top partitions, partially overlapping one another in height. To ensure complete drainage of water from the bath, the latter is equipped with an overflow pivot pipe installed at the bottom of the bottom partition. At the same time the mesh filter is installed on the lower partition. Figure 1 shows the installation, the General view of figure 2 - section aa

in FIG. 1) in FIG. E, section BB in FIG. 2.

The installation comprises a housing 1, a hydraulic filter 2, an exhaust ventilation system 3, and a bath 5 with water connected to the pump unit 4. In the bath 5 there are two partitions 6 and the top 7, a strainer and an overflow valve 9. The bottom edge of the partition 7 is nepet. covers the upper edge of the partition 6, structurally combined with a mesh filter 8. The rotary nozzle 9 is installed in the lower part of the lower partition 6. Bath 5. is also equipped with a valve 10 to drain water into the sewer. The apparatus includes a chamber for housing the products to be painted 11.

The installation works as follows.

The product to be painted 11 is placed in the housing 1, where a protective coating is applied to its surface. The exhaust ventilation system 3 for suction-polluted air and the pumping unit 4 are set in operation, which creates water circulation in the closed system bath 5 - pump unit 4 - hydraulic filter 2 - bath 5. At the same time, the paint floating on the surface of the water staying in suspension in bath 5 cannot contact with strainer 8 / as this is prevented by the upper partition 7, and the settled down to the bottom of bath 5 and the fully suspended state - below the lower edge of the partition 7 paint particles also cannot contact with filter m, since this prevents the lower partition 6. If necessary, drain water from the bath 5 is removed paint floating on the surface, and open valve 10 to sewer drain voiy. Water is drained to the level of the upper edge of the lower weed 6. Further, the water cannot be drained. In order to completely drain the water from the bath 5, the overflow rotary pipe 9 is turned in accordance with the lowering water mirror until it is completely drained. Then, the 5 red blood bath settled to the bottom is removed.

The use of such an installation makes it possible to collect and reuse the applied materials that are sprayed and not deposited on the product, as well as increases the average service life of the screen filter.

Claims (3)

1. An installation for applying protective coatings on products, comprising a housing, an exhaust ventilation system, a hydraulic filter connected to a pump unit, a water bath and a strainer, in order to prevent sticking of the strainer with paint and reduce suspended entrainment and axially x To the bottom of the bath of particles. In the sewage system, the bath is provided with two established maximum distances from one another to the lower and upper partitions, partially overlapping one another in height. 2. The installation according to claim 1, which is often so that, in order to ensure that the water is completely drained from the bath, the latter is equipped with an overflow with a rotary nozzle installed in the lower part of the lower partition. 3. Installation on PP. 1 and 2, that is, so that the mesh filter is installed on the lower partition. Sources of information taken into account in the examination 1. Album equipment for paint shops. M., Himi, 1975, p. 72, fig. 2.6 (prototype). 0ffe.J AA