SU1219875A1 - Arrangement for heat treatment of greased chips - Google Patents

Description

12

The invention relates to devices for cleaning metal chips from oil and emulsion and can be used in the engineering industry.

The aim of the invention is to improve the efficiency of work and protect the environment from harmful emissions.

The drawing shows a device for heat treatment of oily chips.

The device contains a rotary drum furnace 1 with a muffle 2 located along the furnace axis, having an end face 3, which is shaped like a Laval nozzle, and with channels 4 of the return motion of the heat transfer medium located along the periphery. The device also includes a loading unit 5, an unloading unit 6, a coolant preparation chamber 7 and a coolant circulation system 8.

In the preparation chamber 7, the heat carrier coaxially to the muffle 2 is a burner device 9, the outlet of which is located in the same plane with the end face of the muffle 2. On the outside side surface of the muffle 2 there are screw 10 and blade blades.

11 nozzles. On the inner surface of the channels 4 there are paddle

12 headings. The circulation system of the heat carrier 8 turns on the fan 13 and is connected to the flue 14, which,

in turn, it is connected to a burner 9 and a chimney 15. The circulation system of the heat carrier 8 also includes a heat exchanger 16 in which the path for heating the air is connected to the mount device 9, because the path for heating the water is connected to the hot water consumer. Node 5 loading box 17 is connected to the inner space 18 rotate Editor A. Vorovich

Compiled by T. Lepahina

Tehred V. Kadar Proofreader L. Pilipenko

Order 1310/47 Circulation 514 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

75 J

an adjacent drum furnace 1, which is connected by a box 19 with an unloading unit 6.

The device works as follows.

in a way.

Oiled chips with the loading unit 5 and the box 17 are fed into the inner space 18 of the rotary drum furnace 1, and due to the rotation and tilting of the furnace 1 and the screw and blade nozzles 10-12, move along the furnace 1 to the box 19 and the discharge unit 6. The gaseous coolant flows from the burner unit 9 and with an initial temperature of 1100-1200 ° C passes inside the muffle 2, inside the channels 4 and heats the chips moving in the inner space 18 of the rotary kiln 1.

The exhaust coolant through the heat exchanger 16 by the fan 13, partially by the flue 14 is fed to the burner 9 and partially to the chimney 15. As a result of the heating of the chips, intensive evaporation of the oil and the emulsion occurs, the pairs of which are injected by a stream of combustion products into the end 3, where in the high temperature zone going full

Combustion of the products of evaporation of oil and emulsion with the addition of additional heat, thereby reducing the consumption of fuel consumed. burner device 9. Heating the chips without direct contact with the coolant reduces the waste of the metal chips. In addition, the absence of a special chamber for the afterburning of the oil and emulsion vapors outside the rotating drum furnace 1 and burning them directly in the muffle 2 of the rotating furnace significantly reduces fuel consumption, which increases the efficiency of the device.

Claims (2)

(-57) 1. DEVICE FOR HEAT TREATMENT OF OILY GRAVES, containing a rotary drum furnace with an axial muffle and channels for returning the coolant, units and a heat exchanger, characterized in that, in order to increase the economy of operation and protect the environment from harmful emissions, the end face of the axial muffle is shaped like a Laval nozzle from the side of the preparation of the coolant, while the outlet of the gas burner device is located in the same plane with the axial muffle. 2. The device according to π. 1, characterized in that the heat exchanger is connected by a gas duct to a gas burner device.