IMPROVED UNIT FOR OBTAINING CLINKER FROM RAW MATERIAL MIXTURE, AND CORRESPONDING METHOD Russian patent published in 2014 - IPC F27B7/20 C04B7/36 

FIELD: machine building.

SUBSTANCE: method for obtaining clinker from raw material mixture is implemented by means of a unit that includes the following: rotary furnace (8), and namely a pre-calcinator; multistage cyclone heater (9) connected to the above rotary furnace (8) downstream relative to flow direction of gaseous combustion products (11), which occurs in the above rotary furnace (8); electrostatic precipitator (10) connected to the above heater (9) below the flow direction relative to the above flow direction of gaseous combustion products (11). The unit includes the first inlet hole (17) for supply of raw material mixture to the above gaseous combustion products (11); besides, the above inlet hole (17) is located below the above said heater (9) and above the mentioned electrostatic precipitator (10) in flow direction relative to the above flow direction of gaseous combustion products (11). It also includes the second inlet hole (18) for supply of partially heated raw material mixture (14) from the above electrostatic precipitator (10) to the above heater (9). The proposed method involves an electrostatic precipitator as a fixed part of the heater.

EFFECT: elimination of one or more cyclones in the heater and improvement of efficiency of NO_x and SO_x content reduction at further cleaning stages of gaseous combustion products.

13 cl, 4 dwg, 1 tbl, 2 ex