SU268150A1 - FOR LIBRARY •! ? t IJ - Google Patents

Description

The known device for tissue milling, including a drive and a vessel with a grinding element, does not ensure complete destruction of the cells and, therefore, the high quality of the suspension obtained.

The proposed device differs from the known one in that its drive is a pneumatic type pressing mechanism with an air supply line for supplying filtered compressed air. The grinding vessel consists of a hopper for sterile loading of the material being crushed and a receiver coupled with it to collect a suspension of the crushed material, and a replaceable diaphragm, chopper-choke and spiral-type separator located in the upper part of the receiver can be fixed in the outlet of the hopper.

In order to ensure convenience and safety of operation, the grinding vessel is located inside the frame with a rotary protective casing equipped with a loading window. The design of the device enhances the quality of the pulverized slurry.

FIG. 1 schematically shows the proposed device in general; FIG. 2 is a grinding vessel.

It stands out of a tubular bed /, in the upper part of which the mechanism is mounted by me, covered with a decorative casing 2. An attachment includes a mechanism 3, on the upper flange of which the pneumatic chamber 4 is fixed with a diaphragm type. Nilechny flange has a slot.

A sponge 6 is installed on the rod 5 of the chamber; there is a sponge 6. In the body of the clamping sponge 6 there is

a channel connected by a flexible pipe 7 to a device for regulating the supply of the working gas, consisting of a pressure gauge 8 and a needle valve 9. In the groove of the clamping jaw 6 there is attached a replaceable filter 10 of the preliminary cleaning of the working gas filled with cotton wool.

The pneumatic chamber 4 is connected by a pipe line Not by a device for regulating the supply of aerated air consisting of a pressure gauge 12 and a valve 13.

On the side surface of the frame there is a loading window, which is closed by a pivoting protective cover 14. The protective cover has a loading window, which

 combined with the boot window on the frame. For turning 14, a handle 15 is provided, and on the bed / there are three ball oiors 16. The grinding vessel consists of a bunker

18 gummy collector for collecting a slurry of crushed material. The hopper 17 is equipped with a filter cover 19 and a support ring 20. The conical bottom of the hopper has a fitting with external and internal threads. The throat of the receiver 18 is screwed onto the external thread, and the spiral tubular separator 21 is screwed into the internal thread, in the upper part of which there is a choke 22 with a narrow flow channel.

A metal diaphragm 23 is clamped between the groove on the internal thread of the nozzle of the hopper 17 and the side of the throttle 22, the thickness and strength of which is designed to break when the specified grinding pressure is created in the hopper. Receiver 18 has shtutser 24 for relieving overpressure, a process nipple 25 and a nipple in bottom 26 for discharging a pulverized slurry from the receiver.

The device works as follows. The hopper 17 of the pre-assembled and sterilized crushing vessel is filled with the material to be ground and closed with a filter cap 19. The grinding vessel is then placed on the lower flange of the clamp bracket 3 so that the ring 20 rests on this flange. By turning the knob of the valve 13, compressed air is supplied to the pneumatic chamber 4. Under pressure of compressed air, the brush 5 and the presser sponge 6 fixed on it with the gas pre-filter 10 are lowered and pressed tightly against the cover-filter 19. Thus, the working gas pipeline system 7, the filter cover 1.9 and the hopper 17 are sealed. the casing 14 and close their boot window in the frame 1.

By turning the needle valve 9 from the cylinder through the pipeline 7, the gas, which passes through the pressure sponge 6, the gas pre-filter 10 and the filter cover 19, is directed and cleaned and enters the hopper 17.

The needle valve 9 is kept open until the pressure in the hopper 17 is created to crush the material. When this pressure meets the target, diaphragm 23 is broken, and the explosive material is discharged at high speed through a narrow flow channel in the throttle 22 and separator 21 into the receiver 18. In the spiral separator 21, the flow of the material and gas being crushed is attached to the axis 18 .

The resulting centrifugal forces separate the heavier crushed

gas suspension. Crushed suspension

on the walls of the receiver 18 flows down to its bottom,

and the excess gas through the nozzle 24 goes into

environment.

At the end of the grinding process by turning the handle of the valve 13, the access of compressed air to the pneumatic chamber 4 is stopped and the rod 5 is raised. Thus, the grinding vessel is freed from the pressing mechanism and removed from the bed 1,

after which it is possible to load the next vessel into the bed and crush the new portions of the material.

Subject invention

Claims (2)

1. A device for grinding, for example, tissues, cells and bacteriums, containing a drive and a grinding vessel with a splitter located inside it, characterized in that, in order to improve the quality of the suspension obtained by grinding, the device is designed as a pneumatic type pressing mechanism fitted with an air duct for supplying filtered compressed air, and the grinding vessel is made replaceable in the form of a bin for sterile loading of the ground material and an articulated receiver for collecting the ground In this case, a replaceable diaphragm, a choke-type chopper, and a spiral-type separator, which is located in the upper part of the receiver, can be fixed in the outlet nozzle of the bunker. 2. The device according to claim 1, characterized in that, in order to ensure convenience and safety of operation, its grinding vessel is placed inside the frame with a rotary protective casing equipped with a loading by the window. 2 21 22