DEVICE FOR FLAT SCREEN AND DEVICE FOR CLEANING FLAT SCREEN SIEVES Russian patent published in 1997 - IPC

FIELD: sieving ground products in farming and various industries. SUBSTANCE: device for flat screen includes sieve box with plate of base and devices for unloading fine and coarse materials, sieve frame with one-sided skin with no connecting members; it has form of sieving box and is located inside it forming geometric closing of sieve frame. Sieve frame laid in box has its own rigidly sufficient for taking up the force arising at one side of sieve without threaded or similar joint and with considerable deformation of frame. Device for cleaning the sieve of flat screen is made in form of cleaning members located on plate of base in cleaning field. Cleaning member is made in form of sleeve of square cross section with roof-type vertical projection provided with swinging support, sieve cloth cleaning appliances and appliance for cleaning the plate of base. EFFECT: enhanced efficiency. 15 cl, 19 dwg