SU1326856A2 - Drier for loose materials - Google Patents

Abstract

Invention m. B. used in the drying of high-purity products in the chemical, food and pharmaceutical industries. The invention improves the quality of drying. Material (M), intended for drying, is continuously fed to the loading pipe (P) 8, vrashayush, ripper 9 - to the central part of the heated plate 3. Spiral insert (CB) 1 with variable pitch of the helix is fixed on the cross 2 and is rotated drive 5 through gearbox 6. CB 1, mixing M, moves it from the center to the periphery to the discharge terminal 10. When you move M on the fixed plate 3 in channel 12, it is dried, and the evaporated moisture is removed through P 11. The drying parameters are controlled by the residence time M in channel 12 and part rotation of the NE 1. Executing step ST 1 umenschayuschims from the center to the periphery with retaining its area equal turns allows the layer to ensure uniform height M and increase dryer productivity. 2 Il. (L SL: o O) 00 ate about uz. /

Description

The invention relates to a technique for drying bulk materials and can be used in the chemical, food, pharmaceutical and other industries in the drying of highly pure products and is an additional author. St. No. 1010423.

The purpose of the invention is to improve the quality of drying.

FIG. 1 shows a dryer, longitudinal section; in fig. 2 shows section A-A in FIG. one.

The dryer for bulk materials contains a spiral insert 1 fixed on a cross 2, a plate 3 with heaters 4, an actuator 5, transmitting a vratsalny movement of the spiral insert 1 through a reducer 6, a housing 7, a loading branch pipe 8 with a loosener 9, a discharge pipe 10 and the pipe 11 output moisture vapor. The spiral insert 1 with the plate 3 forms a channel 12 of rectangular cross section, the insert 1 being located above the plate 3 with a gap.

The pitch of the spiral insert is made shorter, from the center to the periphery, with the equality of the plateau and its coils remaining equal.

The dryer works as follows.

The material intended for drying is continuously supplied to the loading nozzle 8 and the rotating ripper 9 into the central part of the plate 3 heated by the heaters 4 to the required temperature. Plate 3 is fixed to the housing 7 fixed. Spiral insert 1 with variable pitch fixed to the cross 2 and

Drive 5 rotates through reducer 6. Rotating spiral insert 1, mixing the material, moves it from the center to the periphery to the discharge pipe 10. When the material moves along the fixed plate 3 in channel 12, it is dried and the evaporated moisture is removed through the pipe 11 by the fan.

The drying parameters, depending on the amount of moisture and the nature of its connection, are adjusted by the residence time of the material in the channel 12 by changing the temperature of the plate 3 and the frequency of rotation of the spiral insert 1.

The purity of a particular product is maintained with the appropriate structural material of the dryer.

Performing a spiral insert step that decreases from the center to the periphery while maintaining the equality of the areas of its turns allows for a uniform height of the material layer and an increase in the productivity of the dryer.

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Claims (1)

Invention Formula Dryer for bulk materials according to ed. St. No. 1010423, characterized in that, in order to improve the quality of drying, the spiral insert is made with variable pitch, decreasing from the center to the periphery while maintaining the equality of the areas of its turns. Compiled by E. Posenchuk Tehred I. VeresKorrektor A. Tsko Circulation 636 Subscription VNIIPI USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4