UA26182C2 - DEVICE FOR PROCESSING WOLF OF ANIMAL ORIGIN AND DEVICE FOR PROCESSING WOLF - Google Patents

Abstract

An apparatus for processing animal fibre, particularly raw wool, said apparatus comprising a solvent bowl; means for admitting said fibre to said solvent bowl, an endless belt in said solvent bowl adapted to transport fibre through said bowl, one or more solvent shower devices disposed in said bowl adapted to spray solvent under pressure to cleanse said fibre as said fibre traverses said bowl on said endless belt, and a weir adapted to receive at least substantially pure solvent and cascade said solvent into said bowl on an elevated portion of said endless belt out of contract with solvent in said bowl.

Description

located in tank 1 with solvent 2, an endless conveyor belt 5 with a raised section b for transporting fiber through tank 1, means 7 located in tank 1 for spraying solvent under pressure for cleaning the fiber during its movement through tank 1 on an endless conveyor belt 5 and drains for receiving clean solvent and cascading the solvent into tank 1 on the raised section 6 of the endless belt! conveyor 5 without contact with solvent 2 in tank 1.

Part of the solvent 2 in the tank 1 is used as a wetting or impregnating liquid, transmitted through the pipeline to the outlet nozzle 8 of the additional means for supplying the solvent for wetting the incoming fiber in the tank 1 shortly after its movement from the means for supplying the fiber.

The device is equipped with a centrifuge (not shown in the drawing). The outlet zone 4 of the tank 1 is located adjacent to the raised section 6 for transferring the cleaned fiber to the centrifuge. Raised section b of conveyor 5 is located between rollers 9 and 10. Drain 11 serves to receive clean solvent.

The device is equipped with an auxiliary means 12 for the joint flow of the solvent. Means 12 is designed to inject solvent 2 under pressure into tank 1, and the joint flow of solvent through means 12 causes the fiber to move along the conveyor belt 5 with the speed of movement of the belts.

The device contains a filter (not shown in the drawing) for receiving the solvent 2 from the tank 1 and returning it in its pure form to the means 7 for spraying the solvent. The device contains a refrigerator and a reservoir for receiving pure solvent (not shown in the drawing). The device contains means for directing solvent vapors from tank 1 and the centrifuge to the refrigerator and means for transferring the solvent from the refrigerator to the tank. The device contains an inlet trap for receiving the final vapors from the refrigerator, filled in the form of an adsorber with activated carbon communicating with the atmosphere, an additional filter for receiving the used solvent from tank 1 with impurities and fatty inclusions, a dryer for transferring to it impurities from additional filters, distillation cube! for transferring fat inclusions and solvent from additional filters into them, a means for extracting the solvent from the dryer and from distillation cubes and transferring it to the tank, a chamber for collecting foreign material from the dryer and an additional tank for collecting fat inclusions from distillation cubes (in the drawing, conditionally don't show means).

The device is sealed from the surrounding atmosphere! for work! under pressure below atmospheric.

The device for processing wool contains the first tank 1 with a solvent 2 with an input zone and an output zone 4, means for supplying wool to the input zone 3, mounted in the first tank 1, an endless conveyor belt 5 with a raised section 6, arranged between rollers 9 and 10 for moving wool on it, the second tank 13 with the input 4 zone and the output 14 zone. In the second tank 13, an additional endless conveyor belt 15 with a raised section 16, located between rollers 17 and 18, is mounted for moving the wool on it. In the second tank 13, means 19 are installed for spraying the solvent under pressure for additional cleaning of the wool when it is moved on the conveyor belt 15. The device contains the first drain 11 for receiving the solvent from tank 1 and its cascading into tank 1 on the raised section 6 of the belt! conveyor 5 without contact with solvent 1 of tank 1. The device contains a second drain 20 for receiving clean solvent and its cascading on the raised section 16 without contact with solvent 2 of tank 13.

The device contains a filter for cleaning the solvent, a centrifuge, means for returning the cleaned solvent to the means 19 for spraying the solvent in the tank 13 and a tank for collecting the clean solvent (not shown in the drawing).

The device is equipped with an additional means for supplying a solvent for wetting the wool entering the tank 1 with a nozzle 8. The inlet zone 14 of the tank 13 is located adjacent to the upper end of the raised section 16 for transferring the wool cleaned in the tank 13 to the centrifuge (not shown in the drawing).

The device contains an auxiliary means 21 for the joint flow of the solvent, located in the entrance zone 4 of the tank 13, and also an auxiliary means 12 located in the entrance zone! From tank 1. Tanks 71 and 13 are separated by partition 22.

The device contains an additional filter, an additional means for returning the purified solvent to the means for spraying the solvent in the first tank 1 (not shown in the drawing).

The main and additional filters are mounted with the possibility of separate inflow of solvent into them from tanks 1 and 13. The device is equipped with a refrigerator, a means for heating solvent vapors from tanks 1 and 13 and a centrifuge in the refrigerator, a means for transferring the solvent from the refrigerator to the tank, an output trap for receiving final vapors from the refrigerator, made in the form of an adsorber with an activated angle communicating with the atmosphere, an auxiliary group of filters for receiving the used solvent from the first tank with impurities and fatty inclusions, means for transferring material waste from the main and additional filters to the auxiliary group of filters, a dryer and a number of distillation cubes for transfer to them from the group of grease filters and solvent, means for extracting the solvent from the dryer and distillation cubes and transferring it to the tank, a chamber for collecting foreign material from the dryer and an additional tank for collecting fats x included from the distillation cubes (conditionally not shown in the drawing). The device is sealed from the surrounding atmosphere for work! under pressure below atmospheric.

The device works as follows.

The wool is moistened and fed to the entrance zone 3. The wool falls on the surface of the tape! of conveyor 5 in tank 1 and is transferred along it at a given speed.

Part of the solvent 2 in the tank 1 is directed to the tool 12, where it is forced to flow into the zone of the endless tape! conveyor 5. The additional part of the solvent 2 in the tank 1 is transferred through the filter to the means 7 for spraying the solvent, where it is prompted to flow vertically down to mix with the solvent 2 to remove fat and foreign materials from the wool. The endless belt 5 and the wool transmitted along it is raised above the surface of the solvent 2 between the rollers 17 and 18, the wool on the raised section 6 of the belt is washed with the solvent 2, directed from the second tank 13 through the drain 11 for additional removal of fat and foreign particles in the wool

The wool washed in this way is sent along the endless conveyor belt 5, falls onto the endless conveyor belt 15 in the second tank 13, and then part of the solvent 2 in the second tank 13 is used as a joint flow of liquid through the means 21. The second part of the solvent 2 is transferred through the filter to the means 19 , from where it is transmitted under pressure vertically down to mix with solvent 2 in the zone of the infinite tape! conveyor 15 for additional removal of fat and foreign particles from wool.

Part of the infinite tape! 6 rises above the level of the solvent 2 in the tank 1 between the rollers 17 and 18, and the wool, transferred by the raised section 16, is washed with clean solvent, fed into the tank 13 through the drain 20. The washed wool is directed along the endless conveyor belt 15 to the exit 14, after therefore, it is transferred to a centrifuge, where the remaining solvent, mixed with wool, is extracted and transferred in the form of steam (or partially in the form of steam and liquid) to return to the tank with pure solvent and to the device.

Solvent removed from tank 1 at the same speed as pure solvent is transferred to tank 13 through drain 20, and the level of solvent 2 in tanks 1 and 13 is kept constant. Clean solvent is pumped from the tank with the solvent into the tank 13, while it enters the tank 13 through the drain 20 as a final washing of the wool before the access of the wool to the cassette. Part of the solvent in tank 13 is passed through a filter and then re-introduced into tank 13 through means 19. The solvent used in tank 13 is transferred to tank 1 through drain 10. Part of the solvent in tank 1 is filtered again for re-introduction into tank 1 through means 7. The used solvent is transferred from tank 1 through a series of filters. From these filters, the foreign material is transferred through the dryer to the foreign material collection chamber, where it is collected in powder form. Additional weed impurities from filters means 7 and 19 are also transferred to this series of filters.

The solvent and fat are transferred from these filters to a group of distillation cubes, from where the fat is extracted and collected in one or more collection tanks.

In stills, the solvent is evaporated from the mixture of solvent and fat, and such evaporated solvent is condensed and returned to the tank with the solvent. Solvent from the dryer for weed impurities is also sent to the solvent tank. Vapors from blocks 1 and 13 are sent to the refrigerator, while tanks 1 and 13 maintain pressure at a slightly lower than normal air temperature to create an effort to transfer vapors to the refrigerator. Steam from the centrifuge and impurity dryers are also transferred to the refrigerator, from where the solvent is returned to the tank for pure solvent for recirculation in the system.

The entire system is sealed and under pressure below atmospheric to exclude the entry of vapors into the atmosphere. In this connection, a tool for steam regeneration is used, in which steam from the systems! are drawn under pressure below atmospheric. These vapors are condensed and transferred to a tank of pure solvent for reuse in the system. A trap in the form of an adsorption device with activated carbon is used for the final capture of vapors, so that the meaning of the vapors is compatible with the most stringent protection rules! the environment!.

Solvent losses will be minimal, since the fat in the wool extracted from the systems) has a solvent content of approximately 295. In addition to any minor escape of vapors, this represents the sum of the total solvent losses, which amount to 70 - 100 kg/day. This is considered acceptable provided that the system is designed for a feed rate of wool (non-defatted) of 750 kg/h and a speed of solvent distillation of 6500 kg/h.

The incoming flow of 5000l/h of pure solvent into the second tank will be kept constant, and this incoming flow will be balanced by the outgoing flow of approximately 500O0l/h from the second tank 13 to the first tank 1. Wet wool entering the second tank from the first tank will also be carried with it some amount of solvent, so the return flow to the first tank will actually be higher than 5000l/h by the amount carried forward by wet wool. The return flow to the first tank 1 is carried out from the second tank 13 in the form of a jet circulation flow through the corresponding distribution valve. The level regulator will determine the solvent level in the second tank 13 and send a sufficient amount of solvent back to the first tank 1 through the distribution valve to balance the total incoming flow and maintain a constant solvent level.

The flow of the solvent from the washing device 5000 l/h enters the primary distillation cube, which works under pressure below atmospheric. In order to maintain a constant 3095 - wool fat concentration in the primary distillation cube, approximately 30 kg/h is pumped out of the steam bath with a pump to extract fat from the primary distillation cube and sent to the secondary distillation cube. Then re-condensed pure solvent liquid is pumped by a pump to extract fat from the primary distillation cube into a tank for pure solvent.

In the secondary distillation cube, the liquid from the primary distillation cube is concentrated to a fat concentration of 8095. A flow of 120 kg/h is removed from the steam bath by a pump for extracting fat from the secondary distillation cube, and it is transferred to the third distillation cube. The re-condensed pure solvent liquid is pumped with a pump to extract the solvent from the second distillation cube into the pure solvent tank.

In the third distillation cube, the bath is heated by electrical means, and solvent vapors are removed from the distillation cube by an injection pump, immersion in a bath of cold solvent at atmospheric pressure. The bath is cooled by cooling and inside the bath the solvent vapor is condensed. This causes the level of the bath to rise, and the flow of solvent is poured into the tank for pure solvent.

Thus, a third pump is not required to extract the liquid solvent.

The second tank 13 is constantly pumped with a pump of 500 l/h of solvent from the tank for storing pure solvent. The level in the tank with pure solvent is regulated by the level regulator. If the level in the tank decreases due to the fact that the return flow from the washing device is less than the flow pumped into the washing device (as a result of solvent losses), the solvent make-up pump will pump additional solvent from the storage tank into the primary still.

In the event of an increase in the level in the tank with pure solvent, the excess amount will be returned to the tank for storing the solvent.

Fat from the wool is gradually concentrated in the remains from the stills to a concentration of more than 9595 fat when unloading from the final still.

Different pumps in the system add considerable energy to the circulating solvent. Get the pump! include jet circulating pumps, pump! for joint flow and pump! for solvent and fat extraction. To avoid excessive temperature rise! of solvent in tanks 1 and 13, in each tank in the injection zone, a coil refrigerator is installed under the return tank. Coolant can be supplied to this coil from the main, refrigerating plant for distillation cubes, and the temperature in the tank can be easily regulated with the help of a simple thermostat with a dial.

Steam regulation is important. All devices containing a solvent, for example, a filter, centrifuge tanks, etc., are maintained at a pressure slightly below atmospheric. This creates a small flow of incoming air at any leak, rather than an outgoing flow of air/solvent, thereby eliminating the loss of solvent vapors. To maintain the required pressure below atmospheric, a small fan is connected on its suction side to all devices containing the solvent. The air loaded with solvent and discharged from the fan is sent to the vapor regeneration system using refrigeration and absorption carbon vapor recovery. It is possible to use a refrigeration system to cool solvent-saturated vapors to approximately -3070.

After cooling, the solvent vapors will be reheated to ambient temperature. During the cooling stage, the vapors of the solvent condense, leaving only about 495 vapors in the air. Then this flow is sent to a relatively small and inexpensive carbon absorption system, which absorbs approximately 9895 of the remaining solvent vapors, and thus the loss of solvent vapors is reduced to about 17 kg/day. Letting steam out of the system! regeneration is carried out outside the room in which the system is located, through an exhaust pipe.

The entire system is ecologically clean, as there is no solvent leakage from the systems! All foreign material is removed from the wool and collected, particles! in the form of weed impurities can be used as fertilizer, fat - for further processing, vegetable matter - for further processing in lime processes. Products of systems! clean, high-quality untangled wool, weed impurities in powder form and more highly recovered fat from wool are recognized.

Information sources 1. Patent Great Britain Mob83137, cl. 15(1) A, publ. 1952. 2. Review of foreign patents on primary processed wool. - M: TsnIIsherst, 1962. - 0.20 - 24. - Fig. 9. 7 and "7 la

M,

AND

, | And "she di she"

Railway 4; oh and

In pipyshasha pi SHY. and g. - g 9527 82y7,/l7/7

Fig.