DEVICE FOR REMOVAL OF TECHNOLOGICAL AIR FROM FIBRE-PROCESSING ELEMENTS OF SPINNING MACHINES Russian patent published in 2009 - IPC D01H11/00 

FIELD: textile, paper.

SUBSTANCE: invention relates to textile industry and concerns device for removal of technological air from fibre-processing elements of spinning machines, for instance self-twist spinning machines. Device contains ventilator, connected by outlet branch pipe with expansion chamber, made with located inside it sound-insulating covering, and air duct with evenly located on it absorbing branch pipes for connection with fibre-processing elements of machine, horizontally installed along machine and connected with one end by means of transition chamber with chamber for fluff collecting, which has filter on opposite to transition chamber wall and is connected from filter side with inlet branch pipe of ventilator. Between chamber for fluff collecting and inlet branch pipe of ventilator expansion chamber is located. Inlet branch pipe of ventilator is made elastic from elastic sheet vidrodamping material with coefficient of inner loss not less than 0.2. In expansion chamber temperature detector is placed, in bunker for dust collecting emergency detector of dust level is placed, and in outlet box of filter section heat automatic detector-annunciator is placed, whose outlets are connected with the general one of dust catcher is installed collector with sprayers for connection to fire-extinguishing system, its control unit is connected to general microprocessor. Control unit of system of hose filters regeneration is connected by means of electronic connection with general microprocessor. System of hose filters regeneration with mechanism of pulse blowing-through ensures automated control of electromagnetic valves of compressed air in case of excessive pressure about P_e=0.4÷0.8 Pa and pulse duration τ=0.1÷0.2 sec and simultaneous blowing-through of a number of hoses without stopping filtering process m=5÷10%. Filtering elements of hose type are located in straight rows or in chess order. Ration of hose length L to its diameter D is within optimal limits L/D=15÷40. As material of filtering hose elements both woven materials with methods of weaving: linen, twill, sateen; with types of fibres in thread: staple, filament, textured; with surface processing: smooth and teaseled, and non-woven with methods of fibre fixation: needled, linen-pierced and glued. Sound-absorbing material of expansion chamber is made basing on aluminium-containing alloys with their further filling with titanium hydride or air with density within 0.5÷0.9 kg/m³, with compression strength within 5÷10 MPa and bending strength within 10÷20 MPa.

EFFECT: increase of dust catching efficiency and noise reduction and enhancing safety.

2 cl, 3 dwg