SU1585021A1 - Unit for blasting articles - Google Patents

Abstract

The invention relates to blast cleaning and allows for improved cleaning efficiency and reduced energy costs. The installation includes a pass-through chamber 1 with cleaning zones 2 and drying 3. In the cleaning zone 2, a collector 4 with nozzles is installed. At the outlet and inlet of the cleaning zone 2, collectors 5 of the liquid curtain are installed in the form of a pipe with a longitudinal groove over its entire length, and in the upper part of the drying zone there is a heat exchanger 6 with a fan 7 and a drying manifold 8. Under chamber 1 there is a bath 9 with heating 10. From the bath 9 through the suction pipe 17, the pump 16, the working fluid, heated by the heating means 10, is fed through the discharge pipe 13 through the manifold with nozzles to the cleaning zone 2. At the same time, with the same pump, the working fluid through the additional discharge pipe 14 is fed through the heat exchanger 6 and the additional pipe 15 to the collectors 5 of the liquid curtain. The fan 7 blows air from the atmosphere through the heat exchanger 6. The working fluid from the inclined tray 11 flows into the bath 9. The use of an additional pipeline connecting the pump discharge pipe to the liquid curtain collectors through the heat exchanger reduces the temperature of the working liquid curtain and simultaneously raises air temperature for drying products. 1 il.

Description

C 9 P 15

This invention relates to a jet cleaning technique and may find application in the engineering industry.

The aim of the invention is to increase the cleaning efficiency and reduce energy consumption.

The drawing shows schematically the installation for inkjet

cleaning products.

The installation contains a chamber 1 of one type with a blast cleaning zone 2 and a drying zone 3. In zone 2, a collector 4 with nozzles is installed. At the exit and inlet of the cleaning zone 2, the collectors 5 of the liquid curtain are installed in the form of a pipe with a longitudinal groove for the entire length, and in the upper part of the drying zone there is a heating element in the form of a heat exchanger 6 with a fan 7 and a collector 8 of drying. Under the chamber 1 is placed a bath 9 with a means 10 for heating the washing liquid. The bath 9 from the chamber 1 separates the inclined tray 11. The conveyor in the form of a double-chain conveyor 12 is installed with the ability to move the processed products through the cleaning zones 2 and drying 3 "to supply washing liquid to the collector 4 cleaning zones 2 and the collectors 5 with a liquid curtain by the discharge pipeline

13 and additional pipelines

14 and 15 serves as a pump 16 connected to the bath 9 by a suction pipe 17. Valves 18 are installed in front of the manifolds 5 to regulate the supply of washing liquid to the liquid curtain. The processed products 19 are placed on the conveyor.

Installation for blasting products works as follows.

The product 19 is placed in the conveyor 12 n is moved through the treatment zones. From the bath 9 through the suction pipe 17 by the pump 16, the working fluid is heated by the heating means 10, through the discharge pipe 13 is supplied to the cleaning zone 2 through the manifold with nozzles 4. At the same time, the same fluid through the additional discharge pipe 14 is fed through the heat exchanger 6 and the additional pipeline 15 to the fluid curtain manifolds 5, Fan 7 air from

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The atmosphere is pumped through the heat exchanger 6. The spent working fluid along the inclined tray 11 flows into the bath 9.

The use of additional pipelines connecting the discharge pipe of the pump to the collectors of the liquid curtain through a heat exchanger reduces the temperature of the working fluid of the curtain and at the same time raises the temperature of the air to dry the products.

Improving the performance of the cooling liquid curtain is explained as follows. In the cleaning zone 2, when spraying with a hot washing liquid, abundant spraying and evaporation occurs, thereby creating an excessive vapor pressure.

The vapors of the washing (working) liquid rush through the openings and escape to the outside - this irretrievably lost washing liquid. And since continuous curtains of a cooled washing liquid are created at the outlet and entrance of the cleaning zone 2 by the collectors 5, the vapors coming into contact with this liquid condense and flow into the bath 9. Thus, near the curtain there is a permanently reduced pressure area where all new portions of steam rush. When there is a liquid curtain consisting of a working fluid and having its temperature, this effect is absent. The relative heat of the washing liquid going to the curtain is used to heat the air going to dry the products.

The use of a single heat source for blasting and drying the product, as well as the presence of a liquid curtain with a lower temperature, which helps to trap a significant mass of vapor, increases the efficiency of the installation.

Claims (1)

Invention Formula Installation for jet cleaning of products, containing a pass-through chamber with at least a blasting zone and a drying zone, a collector with nozzles for supplying washing liquid to the product, a fan with a drying collector installed between the fan and located in a certain technological sequence drying the heating element bath 515850216 with means of heating the washing liquid and reducing energy consumption, heating, the pump with the suction and the injection element is designed as melting pipelines, heat exchanger collectors, the entrance of which connects the creation of a curtain between the technology and the discharge pipe blast cleaning zones, nasvea, and the output with the corresponding characterized in that the collectors of the curtains to reduce the flow in order to increase the efficiency of the cleaning with a powerful liquid curtains.