SU1257123A1 - Device for preparative treatment of cocoons - Google Patents

Description

The invention relates to a device for the primary processing of agricultural products, in particular for the treatment of silkworm cocoons using deep cold and subsequent drying, and can be applied in light industry and agriculture.

The aim of the invention is to improve the quality of processing while reducing the rejected cocoons due to the intensification of heat exchange between coolants and cocoons, which ensures an increase in the quality of raw silk and the productivity of the processing process.

FIG. 1 shows schematically a device, a section; in fig. 2 shows section A-A in FIG. 1 (along the axis of the drying chamber); in fig. 3 shows the node I in FIG. 1 (design of the blades of the metering drum); in fig. 4 — node II in FIG. 1 (side wall in the drying chamber); in fig. 5 shows the node III in FIG. 1 (device of drums with perforated blades).

The device for the initial processing of cocoons contains successively installed cocoons cooling chamber 1, cocoons drying chamber 2 and weighing doser 3, the cocoons cooling chamber 1 includes cocoons mounted in the insulated casing 4 of the inlet 5 and outlet 6 them with metering drums 7, 8, which can be made with elastic blades 9, and a horizontal cylindrical container 10 placed between nozzles with a means 11 for moving cocoons along the axis of the container 10, which can be made in the form of a screw, and the gaseous refrigerant supply system, the nozzle 12 of which is connected to a tank 10 having a perforated bottom 13 and a groove 14 with a granular filler, for example, made of fluoroplastic, placed in an insulated casing 4, and the nozzle 12 refrigerant supply is placed along the chute 14, while the outlet nozzle 6 is connected to the inlet nozzle 5 by means of the pipeline 15. The drying chamber 2 of the cocoons is connected to the chamber 1 and has horizontally mounted one above the other. conjugated with perforated drums 16

arcuate blades 17, the pipe 18 of the heat carrier outlet, located against the exit window

19, the coolant supply pipe 20, and the turbulator 21 of the latter having parallel rotary blades 22 installed in the output window 19, are located in mutually perpendicular planes, and the weighing batcher 3 is installed in the nozzle 23 of exiting cocoons from the drying chamber and is made in the form of a sealing | company flap.

The device works as follows.

Raw mulberry cocoons are fed from the bunker to the inlet 5, where in the pipeline 15, in the zone 24,;. are pre-cooled and the metering drum 7 is supplied in definite portions into the cylindrical container 10. In the nozzle 5, the cocoons form an insulating layer and, cooling, solidify, which prevents their mechanical damage during further transportation. The refrigerant, for example liquid nitrogen, through the nozzle 12 It is fed into the chute 14 with a granular filling and through a perforated bottom 13 into the container 10 along its entire length. The liquid nitrogen vapor spreads evenly throughout the entire volume of the tank 10, evenly freezing the cocoons along the entire path of their movement to the outlet nozzle 6. The screw 11 mixes and reorients the cocoons as they move along the axis of the tank 10. This intensifies the process of the pupa morka. From the nozzle b, the cocoons are fed in 8 portions by the dosing drum into the drying chamber 2 of the cocoons. The refrigerant is removed from the pipe 6 by a pipe 15, which in the pipe 5 forms a zone 24 for precooling the cocoons.

In the drying chamber 2 of the cocoons, an adjustable flap is installed in its entrance section so that the cocoons are formed before entering the chamber. excess layer, which is an insulator on the section of two temperature environments. Hot air (coolant) into the drying chamber is supplied from the nozzle

20 and passes successively through oppositely rotated and mounted in mutually perpendicular tsoskost blades 22, located

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in the exit window 19, through the lattice wall 25 of the chamber, rotating bars, bans 16, perforated arcuate blades 17 of which pour cocoons and reorient them, through wall j 26 of chamber 2 and retract by nozzle 18. Turbuler 21 in the form of rotary blades 22 forms a uniform in volume; chamber 2 pulsating air flow. The blades 22 are turned on: rotation is forced (drive not shown). Cocoons in chamber 2 fall into a pulsating airflow, intensity 234

they are mixed and dried, and the drying takes on a freeze-drying process, mines the stage of water formation. The wall 25 of the chamber 2, formed by movable plates 27, which, under the influence of changes in the air flow, is caused to oscillate, prevents the cocoons from accumulating at the nozzle 18 and directs them to the outlet nozzle 23, where they are loaded onto the weighing dosing unit 3 and as accumulations are removed from the device.

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Editor N. Shvyschka

Compiled by G. Shishkin

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Order 4885/22 Circulation 432 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Jlf-SS, Raushsk nab. 4/5

Production and printing plant, Uzhgorod, st. Project, 4

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Claims (3)

1. DEVICE FOR PRIMARY COCOON PROCESSING, containing a cocoon cooling chamber, including inlet and outlet nozzles mounted in a heat-insulated casing with metering drums installed in them and a horizontal cylindrical container placed between them with means for moving cocoons along the container axis • connected with the gaseous feed system refrigerant through a pipe connected to the cooling chamber, a drying chamber for cocoons and a weight batcher, characterized in that, in order to improve the quality of processing ki, the bottom cooling chamber capacity is satisfied perforated and has adjacent to it, placed in heat insulated housing trough with granular filler, wherein the refrigerant supply pipe arranged along the channel, and the outlet pipe of the cooling chamber is connected with its inlet. 2. The device according to π. 1, characterized in that the means for moving the cocoons along the axis of the cylindrical container is made in the form of a screw, and the metering drums are made with elastic blades. 3. The device according to claim 1,. about t l - due to the fact that the drying chamber ® has one installed above! another horizontally located drums with perforated arcuate blades, a coolant outlet pipe located opposite the outlet window of its supply pipe, and a coolant turbulator, having rotary blades parallel to the outlet window of its supply pipe, located in mutually perpendicular planes, and the weight batcher is installed in the outlet pipe of the cocoons from the drying chamber and is made in the form of a sealing rotary damper. SU „1257123