DEVICE FOR REGENERATION OF CLOTH FILTER Russian patent published in 2003 - IPC

FIELD: cleaning gases from dust; ferrous and non-ferrous metallurgy; manufacture of building materials; chemical industry. SUBSTANCE: proposed device ensures quick opening and closing of blow valve at minimum interval, high rate of raising pressure, interruption of process of delivery of compressed air to bag filter cleaning system. Proposed device includes blow valve, receiver with branch pipe, dispensing manifold and electromagnetic valve. Blow valve has body provided with spring and larger diaphragm engageable with end of dispensing manifold located in receiver. Branch pipe of receiver is made in form of extended neck with bearing flange. Blow valve is provided with cover having hole, intermediate ring, through-way and relief holes and smaller diaphragm with holes which is mounted between cover and body and is engageable with relief hole of blow valve. Larger diaphragm of blow valve is located between its body and intermediate ring. End of dispensing manifold and larger diaphragm form circular clearance in open position; ratio of area of circular clearance to inner area of section of dispensing manifold is equal to 0,7<d_av•π•H/d2in

•π/4)<1,0, and ratio of area of holes to larger diaphragm and area of circular clearance between end of dispensing manifold and larger diaphragm in closed position is equal to 0,08%<[(d21•π/4)•n:(d2diaph•π/4)]•100%<0,2%, where d_av is average diameter of end of dispensing manifold which is used as seat of blow valve; d_in is inner diameter of dispensing manifold; d₁ is diameter of hole in larger diaphragm; d_diaphis diameter of larger diaphragm; n is number of holes in larger diaphragm; H is height of raise of larger diaphragm with blow valve in open position, π = 3,14.. Area of holes of smaller diaphragm is lesser than area of holes in larger diaphragm by 5-10 times and is lesser than cross section area of electromagnetic valve by 2.5-4 times. Electromagnetic valve is mounted directly on cover of blow valve. EFFECT: enhanced efficiency. 2 dwg