AUTOCLAVE FOR PRODUCING ARTICLES FROM FOAMED CONCRETE Russian patent published in 2020 - IPC B01J3/00 

FIELD: construction.

SUBSTANCE: invention relates to construction industry, namely, to autoclave devices for production of construction materials. Autoclave for production of articles from foamed concrete, comprising a steel housing, an autoclave lid, a steam cleaner main line, steam outlet line, steam bypass line, gate valves, pressure setting unit P_s(t) in autoclave, unit for measuring pressure P_aut in autoclave, pressure comparison unit P_aut with P_s(t), regulator unit, temperature measurement unit T_aut in autoclave, g_st steam flow measurement unit through the steam main line, characterized in that it is additionally equipped with an automatic control system comprising a temperature setting unit T_tb beginning of tobermorite formation, temperature comparison unit T_aut in autoclave and temperature T_tb beginning of tobermorite formation, steam flow rate measurement unit g_stb via steam bypass manifold, derivative of steam consumption calculation unit dg_stb/dt, time moment calculating unit τ₂, in which derivative of steam consumption dg_stb/dt changes sign, time calculation unit τ₃ end of holding phase, wherein temperature comparison unit T_aut with T_tb has two inputs, first input is connected to temperature setting unit T_tb output, second input is connected to temperature measurement unit T_aut output in autoclave, output of temperature comparison unit T_aut with T_tb is connected to first input of steam flow derivative calculating unit dg_stb/dt, second input of steam flow derivative calculating unit dg_stb/dt is connected to the steam flow calculating unit g_stb output via steam bypass line, steam flow rate calculation unit output dg_stb/dt is connected to input of time calculation unit τ₂, time calculation unit output τ₂ is connected to input of time calculation unit τ₃, time calculation unit output τ₃ is connected to input of pressure setting unit P_s(t) in an autoclave.

EFFECT: increased efficiency of autoclave, reduced power inputs for production of articles from foamed concrete and stabilization of finished products strength.

1 cl, 3 dwg