A horizontal flash dryer

Abstract

The invention relates to a horizontal flash evaporation drying machine. A drying chamber is designed into a horizontal cylindrical drying chamber with an inner cavity, and a stirrer is transversely arranged in the inner cavity; the stirrer comprises a transverse stirring shaft, two ends of the transverse stirring shaft are respectively and fixedly connected with two end surfaces of the drying chamber through bearings, and a plurality of stirring paddles are arranged on the transverse stirring shaft; one side of the drying chamber is provided with a hot air inlet tangentially communicated with the inner cavity of the drying chamber, and the other side corresponding to one side of the drying chamber is provided with a material outlet tangentially communicated with the inner cavity of the drying chamber; the hot air inlet direction is the same as the rotating direction of the transverse stirring shaft; a spiral feeder is communicated with the hot air inlet and is in vertical arrangement with the hot air inlet; and the horizontal flash evaporation drying machine also comprises a grading device and a dust collecting device, the output end of the material outlet is communicated with the input end of the grading device, the coarse grain output end of the grading device is communicated with the drying chamber, and the fine grain output end of the grading device is communicated with the dust collecting device. The horizontal flash evaporation drying machine has the advantages that the blockage is avoided, the stirring efficiency is high, in addition, the uniformity is realized, and the horizontal flash evaporation drying machine is suitable for non-fluid fine grain material drying.

Description

technical field [0001] The invention relates to the technical field of flash drying machines, in particular to a horizontal flash drying machine. Background technique [0002] The flash dryer in the prior art is a vertical flash dryer, such as figure 1 Shown, its structure comprises drying chamber 10 and is arranged on the vertical mixer 40 of drying chamber 10 inner chambers, and the vertical stirring shaft 60 of this vertical mixer 40 is positioned at the below of drying chamber 10 inner chambers, in drying chamber 10 The side wall near the top is provided with a material outlet 20 communicating with the inner cavity of the drying chamber 10, and the side wall at the middle of the drying chamber 10 is provided with a screw feeder 30 communicating with the inner cavity of the drying chamber 10, and the hot air inlet 50 is located in the drying chamber 10. bottom of. Although the above-mentioned vertical flash dryer has been widely used in non-fluid fine-grained materials,...

AI Technical Summary

Problems solved by technology

Although the above-mentioned vertical flash dryer has been widely used in non-fluid fine-grained materials, because its stirring shaft is vertical, the bearing seat can only be fixed at one end, that is, the stirring shaft is cantilevered. The structure limits the development of the vertical flash dryer to the direction of large-scale

[0003] Moreover, the hot air of this vertical flash dryer enters the drying chamber 10 from the gap around the bottom of the drying chamber 10. If the bulk material cannot be dried in time and crushed by the vertical agitator 40, it is easy to fall into the gap Blocking the hot air inlet 50 and the hot air duct requires shutting down for cleaning, which has a great impact on large-scale continuous production;

[0004] Furthermore, since the vertical stirring shaft 60 of the vertical stirrer 40 is located below the inner cavity of the drying chamber 10, the overall stirring is uneven and the stirring efficiency is not high, and the stirring space of the drying chamber 10 is also wasted.

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