Cylinder external eccentric swing rotary furnace

Abstract

The invention discloses a cylinder external eccentric swing rotary furnace. The rotary furnace comprises a roller; the swing axis of the cylinder external eccentric swing rotary furnace is positioned at the external of the roller; the geometric axis of the roller swings back and forth around the swing axis; and the section shape of the roller is as follows: a distance L from the bottom roller wall section of the roller between the geometric axis and the swing axis to the geometric axle of the roller is smaller than a distance H from the roller wall section parallel to the coplane of the geometric axis and the swing axis of the roller to the geometric axis of the roller. Compared with a circular-section roller, under the condition of the same sectional area of the roller, the section of the roller is adopted to largely reduce the distance from the swing axis to the geometric axis of the roller, so that the occupied space by swing of the rotary furnace is reduced, the needed counterweight is reduced, the sizes of a support device and a driving device are reduced, and the equipment cost is reduced. Meanwhile, the surface area of the roller with the unit length is increased, so that indirect heating of materials in the roller is facilitated, and the equipment production capacity is improved.

Description

technical field [0001] The invention relates to the technical fields of environmental protection, energy and chemical equipment, in particular to an eccentric swinging rotary kiln outside a cylinder. Background technique [0002] In environmental protection, energy, and chemical production, rotary kilns are usually used to heat, dry, dry, and react materials. [0003] The existing rotary furnace is a rotary rotary furnace, which usually includes a drum, a furnace head, a furnace tail and a driving device. The furnace head and the furnace tail are respectively connected to rotate around the two ends of the drum. The driving drum rotates continuously in one direction relative to the furnace head and the furnace tail; the furnace head and the furnace tail are respectively provided with a material inlet and a material outlet. The material enters the drum through the inlet of the furnace head, rolls in the drum, and finally discharges from the outlet of the furnace tail. Since ...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned undisclosed eccentric swing type rotary kiln has the problem that since the swing axis is located outside the drum, and the drum swings back and forth, it is necessary to set a counterweight to balance the swing

However, since the cross-section of the drum is circular, in order not to interfere with the swing of the drum, it is necessary to ensure that the external movable joint has a relatively large distance from the drum body, which makes the swing range of the outer edge of the drum too large, which not only takes up a large The swing space, correspondingly, the size of the supporting device and the driving device that supports the swing of the drum is larger, and a heavier counterweight needs to be set to balance the swing of the drum, which increases the equipment cost

[0006] In addition, during the heating and drying process in the drum, the material may gradually stick to the inner wall of the drum to form a wall phenomenon, and during the dry distillation and reaction process of the material, the heating surface of the inner wall may be overheated to cause burning and coking, thereby consolidating on the inner wall , when the phenomenon of wall formation and coking is serious, it may even occur that the inner wall of the rotary furnace will form rings

After wall formation, coking, and ring formation of materials in the drum will increase the weight of the drum, it will also affect the heat transfer speed and heat transfer efficiency of the partition heating, and affect the operation of the rotary kiln.

[0007] To sum up, how to solve the problems of large swing space, heavy distribution and high equipment cost of the eccentric swing rotary furnace outside the cylinder has become an urgent problem to be solved by those skilled in the art

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