SU1595951A1 - Arrangement for removing noxious emissions - Google Patents

Abstract

The invention relates to ventilation and can be used to remove harmful emissions during electroplating of parts. The aim of the invention is to reduce energy consumption by reducing the flow rate of suction air and simplifying the design. During the process, harmful substances are released. When the drum 2 is in the electrolyte bath 1, the harmful substances released from the bath surface are collected in a known manner, i.e. through the slit 4 of the side suction 3. When the technological process in the bath 1 is completed, the drum 2 taken out of the bath 1 becomes an additional source of harmful emissions. And since the onboard suction 3 is also connected to the shaft 8 by means of cables 5, the onboard suction 3 and the shield rigidly connected to it will rise simultaneously with the drum lifting, while the slot 4 of the onboard suction 3 will always be at the same distance from the additional source harmful emissions. Such a constructive implementation will make it possible to obtain a new effect, which consists in increasing the degree of trapping harmful emissions during the entire course of the processing of parts, i.e. when the drum 2 is in the bath 1 and when the drum 2 is lifted from the bath 1 without increasing the volume of exhaust air. 6 Il.

Description

The invention relates to ventilation and can be used to remove harmful secretions from baths during electroplating of parts.

The aim of the invention is to reduce energy consumption by reducing the flow rate of suction air and simplifying the design.

FIG. Figures 1 and 2 show the device proposed; the drum with the details is immersed in an electrolyte bath, respectively, in a side and front view; on; FIG. 3 and 4 are the same; the drum with details is raised above the bath; in fig. 5 - TGZH, axonometric, drum raised above the wound; in fig. 6 - the same, the drum is immersed in the electrolyte at 1/3

diameter.

The device comprises a bath 1, a drum 2, which can be immersed in an electrolyte. Along the long side of va 1, there is a side suction 3. In two places, cables 5 are attached to the upper edge of the slot 4 of the onboard suction 3, which are stored through fixed blocks 6 and 7 and attached to the shaft 8 by other terminals.

A screen 9 is rigidly attached to the lower edge of the slit 4 of the side suction 3, which moves in the groove 10, formed by the wall of the bath 1 and an additional wall 11. To the axis 12 of the drum, 2 are attached to the wires 13, which are stored through fixed blocks 14 and 7 and the other ends are fixed to the shaft 8. The handle 15 serves to rotate the shaft 8.

The device works as follows.

Parts that are to be electroplated are loaded into the drum 2 and the drum 2 is immersed in an electrolyte bath 1. As a result of the process ... harmful substances are released. When the drum 2 is in the bath 1, the harmful substances released from the bath surface are collected in a known manner, i.e. removal of harmful substances through the slot 4 of the side suction 3 (fig. 1 and 2) and further along exhaust ducts (not shown).

When the process in bath 1 is completed, drum 2 is removed from bath 1. In this case, drum 2, taken out of bath 1 (and the parts that are in it), becomes an additional source of harmful emissions.

For lifting the drum 2 out of the bath

1 handle 15 rotates shaft 8, cables 13 are wound on shaft 8, and drum

2 is raised. And since the onboard suction 3 is also connected to the shaft 8 by means of cables 5, simultaneously with

10 by lifting the drum (as the shaft 8 rotates with the handle 15) the side suction 3 and rigidly connected to it are raised

screen.

As a result of a rigid connection of 15. three parts (onboard suction 3, screen 9 and drum 2), a spatial structure is formed. Therefore, these three parts cannot move one relative to the other, 2Q therefore, the slit 4 of the side suction 3 will always be at the same distance from an additional source of harmful effects when lifting to any height of the drum 25 2 (Fig. 3 and 4), for the movement of the three parts does not require the arrangement of additional mechanisms, since an existing device is used for these purposes.

30 Since the side suction slit is as close to the drum as possible, efficient trapping of harmful substances from the drum surfaces and parts occurs. In this case, throughout the technological process, a constant distance between the drum and the suction gap is maintained, regardless of the height at which the drum rises above the mirror of the evaporation of the bath. Consequently, providing effective trapping of harmful substances released from the evaporation mirror of bath 1 while raising the drum and from the drum at the same time without increasing the volume of exhaust air while raising the drum, harmful substances released from the surface of the bath and the part of the drum that is located below the side suction slit, the slots 4 of the side suction 3 are raised into the zone of action of the suction plume 4.

55

The use of the proposed device provides an increase in the degree of trapping of harmful substances during the entire course of the processing of products without increasing the volume of exhaust air.

The use of the proposed device provides an increase in the degree of trapping of harmful substances during the entire course of the processing of products without increasing the volume of exhaust air.

FIG. 2

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FIG. five

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Claims (1)

Claim A device for removing harmful emissions generated during the technological process in baths, containing a side suction with a slit, a lift connected to the product holder and a screen mounted with the possibility of vertical movement, characterized in that, in order to reduce energy consumption by reducing the flow rate of suction air and simplifying the design, the screen is rigidly attached by its upper end to the onboard suction under its slit, and the onboard suction is connected to the elevator. FIG. 2 Yu Fig.Z Fig.Z 1595951 FIG. 6