RU2534352C1 - Device for heat treatment of bulk materials - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: device for heat treatment of bulk materials comprises a frame, a drive, a gear, a rotary drum, a hexagon perforated box, a screw, a front fixed sidewall with loading pipe and a socket for supplying the drying agent, the gear ring on the rotating drum, a casing, rotating bearings, a rear sidewall with the unloading window, a receiving hopper.

EFFECT: device for heat treatment of bulk materials enables to improve significantly the quality and to increase the intensity of heat treatment of bulk materials, and to simplify its structure.

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Description

The invention relates to the agricultural, food and chemical industries and can be used for heat treatment of bulk materials.

A known installation for heat treatment of bulk materials, containing a cylindrical body, auger, a coolant supply system, a drive, loading and unloading nozzles, perforation for intensifying heat and mass transfer [A. with. SU1478008, M.C. ³ F26B 11/14; In 3/08, publ. 05/07/89. Bull. No. 17].

A disadvantage of the known technical solution is the low intensification of heat and mass transfer.

Also known installation for heat treatment of bulk materials, adopted as a prototype, containing a drive, a rotating drum, auger, perforation, providing the formation of a fluidized bed, loading and unloading nozzles [US Pat. 2393399 RF, IPC F26B 11/14, No. 2009113950; declared 04/13/2009; publ. 06/27/2009. Bull. No. 18].

The disadvantages of this technical solution are the complexity of the installation and manufacture of perforated turns of the screw, low intensification of heat and mass transfer.

The aim of the invention is to simplify the design and improve the intensification of heat and mass transfer due to the constant mixing of the material and maintaining a uniform fluidized bed of material on a horizontal surface.

The solution of the invention is achieved by the fact that the installation for heat treatment of bulk materials containing a drive, a rotating drum, a screw, perforation, providing the formation of a fluidized bed, loading and unloading nozzles, according to the invention is equipped with a hexagonal perforated box and a cavity formed by the bottom face of the hexagonal perforated box and a cylindrical surface of a rotating drum for pumping a drying agent.

In figure 1. Shown installation for heat treatment of bulk materials.

The installation for heat treatment of bulk materials consists of a frame 1, a drive 2, a gear 3, a rotating drum 4, a hexagonal perforated box 5, a screw 6, a front fixed sidewall 7 with a loading pipe 8 and a bell 9 for supplying a drying agent, a gear ring 10 on a rotating drum 4, the shell 11, the rolling bearings 12, the rear sidewall 13 with the discharge window, the receiving hopper 14.

Installation for heat treatment of bulk materials works as follows. The heat-treating bulk material through the loading pipe 8 in the front fixed sidewall 7 is fed into a hexagonal perforated box 5 located inside the rotating drum 4. When the rotating drum 4 is driven by the drive 2 through the gear 3 and the gear ring 10 on the rotating drum 4, the processed material is evenly distributed along the bottom hexagonal perforated box 5 by screw 6, while providing continuous longitudinal movement of this material. The drying agent through the socket 9 in the front fixed sidewall 7 is pumped into the cavity formed by the lower face of the hexagonal perforated box 5 and the cylindrical surface of the rotating drum 4, and passing through the perforation, creates a fluidized bed of heat-treating bulk material at the bottom of the hexagonal perforated box 5. Improving the intensification of heat and mass transfer occurs due to the constant mixing of the material with the screw 6 and maintaining a uniform fluidized bed of material on a horizontal p the underlying bottom face of the hexagonal perforated duct 5.

The rotating drum 4 rotates on the frame 1 in rolling bearings 12 along the shells 11. The heat-treated bulk material is unloaded through the discharge window in the rear sidewall 13 into the receiving hopper 14.

The device allows to simplify the design and improve the intensification of heat and mass transfer due to the constant mixing of the material and maintaining a uniform fluidized bed of material on a horizontally located surface.

Claims (1)

Installation for heat treatment of bulk materials, containing a drive, a rotating drum, auger, perforation, providing the formation of a fluidized bed, loading and unloading nozzles, characterized in that to simplify the design and improve the intensification of heat and mass transfer by constantly mixing the material and maintaining a uniform fluidized bed of material horizontally located surface, it is equipped with a hexagonal perforated box and a cavity formed by the bottom face of the hexagonal of perforated conduit and the cylindrical surface of the rotary drum for the discharge of drying agent.