The function of gelatinization pot is to boil rice flour and some malt powder with water, and to heat up saccharified mash and make starch liquefied and gelatinized. The structure pot of gelatinization pot is cylindrical, the bottom of the pot is spherical or elliptical interlayer, the top cover is butterfly, the domestic agitator is installed, the bottom of the pot is heated, and the outside of the pot is insulated. The crushed rice flour, malt powder and hot water are mixed and fed by the powder tube and the inlet pipe. With the help of the stirring of the paddle agitator, the concentration and temperature of the thick mash are uniform, so that the heavier particles in the mash are suspended without settling to the wall of the pot to form a "pot bar" to prevent the local overheating of the mash near the heat transfer surface. In order to distribute the heated steam evenly, there is a steam inlet with four short pipes connected with the steam jacket, the steam pressure is 0.3 ≤ 0.6 MPA, the steam condensate is drawn from the condensate pipe, and the non-condensable gas is released from the valve of the non-condensate gas pipe under the steam jacket. There is a thermal insulation layer on the outside of the steam jacket of gelatinization pot. The top of the lid is equipped with a double pull door, a powder tube and a ring washing pipe, and a steam riser is arranged at the top of the lid, and a ring ditch is arranged at the bottom of the riser. beer tap The condensed sewage flowing along the wall of the riser is collected and discharged from the condensing sewage pipe to the ground ditch. The root of the riser pipe is also equipped with an exhaust door to adjust the opening and closing degree according to the need. The top of the steam pipe is equipped with a cylindrical wind cap to prevent the entry of birds and the reversal of wind and rain cans. The material of saccharifying pot, generally choose stainless steel plate, can guarantee beer quality. Copper plate should be used to heat the inner bottom of jacket, because the heat transfer effect of copper plate is good, and ordinary carbon steel plate can be selected at the bottom of the outer pot of jacket. The weld of the lid, body and bottom of the pot should be polished and treated with corrosion-resistant acid passivation. Exposed surface polishing, there should be no bruises, scratches marks.

The influence of wort circulation arc pot bottom on fluid cycle, because the liquid column H2 near the inclined wall of the pot bottom is lower, the heating area is larger, while the central liquid column H2 is deeper and the heating area is smaller, that is to say, the heating area of the liquid per unit volume of the edge is larger than that of the center, resulting in the liquid density near the inclined wall of the bottom of the pot is less than that of the center, so that bubbles are produced faster around the bottom of the pot, And the formation of the surrounding liquid upward, important liquid downward natural cycle. In the same case, the stirring power consumption is only 60% of that of the pan, and the bottom of the ball shaped pot has the advantage of easy cleaning. Therefore, gelatinization pot, saccharification pot and boiling pot bottom are mostly made into ball shape or ellipsoid. The agitator of gelatinization pot is mostly two-blade paddle type, and the rotation angle can be 45 °or 60 °. The axial thrust can promote the circulation and mixing of mash. The speed of the agitator is usually two gears, one is fast (30 × 40 r/min) for mixing raw materials, and the other is slow (6 × 8 r/min) for stirring mash during heating and heat preservation to prevent the deposition and bottom of raw material solids. The capacity of gelatinization pot is smaller than that of saccharification pot and wort boiling pot, and its capacity depends on the amount of raw material added, and the effective capacity coefficient is 58% ~ 60%. When water (400~450kg) is added to each 100kg (including rice flour and malt flour), the capacity of gelatinization pot is 0.5 ≤ 0.55 m3, and the effective volume should be calculated by 500min below the door of manhole. Recently, large factories have adopted gelatinization pot and saccharification pot of the same specifications, in order to common with each other, so that production deployment is convenient. (2) in order to benefit the circulation of liquid and large heating area, the ratio of diameter to cylinder height of gelatinization pot is 2 ≤ 1, the area of riser is 1: 50 ≤ 1 / 30 of liquid evaporation area, and the general heating rate is not less than 1. 5 ℃ / min..