Cooling device for materials after calcination of anthracite or petroleum coke

Abstract

The invention discloses a cooling device for materials after calcination of anthracite or petroleum coke, belongs to destructive distillation equipment special for specific solid-state raw materials or special-form solid-state raw materials, and particularly relates to a cooling device matched with a pot-type calcinator. The cooling device is characterized in that an upper communication manifold trunk and a lower communication manifold trunk are mounted at the upper end and the lower end of an oval hopper defined by membrane type walls respectively, the upper communication manifold trunk is fixed to the lower side of an upper flange and is connected with a water outlet pipe, the lower communication manifold trunk is fixed to the upper side of a lower flange and is connected with a water inlet pipe, at least three sets of secondary heat exchangers parallel to the short radius of the oval hopper are arranged in the hopper, the two ends of a transverse manifold trunk of each secondary heat exchanger are connected with heat exchange pipes on right side membrane type walls and on reverse side membrane type walls. According to the cooling device for the materials after the calcination of the anthracite or the petroleum coke, the hopper is changed to be in the vertical state from the taper state, the volume of materials is enlarged, the front membrane type walls and the rear membrane type walls have certain radian and are connected flexibly, the number of secondary heat exchanging devices is increased, compared with the prior art, the heat exchanging efficiency can be improved, and the service life can be prolonged.

Description

technical field [0001] The invention belongs to dry distillation equipment dedicated to specific solid raw materials or solid raw materials in a special form, especially a cooling device matched with a pot calciner. Background technique [0002] The pot calciner is used in the dry distillation of solid materials, such as calcining petroleum coke into carbon anode raw materials, calcining anthracite into cathode raw materials for electrolytic aluminum, electrode paste raw materials and carbon electrode raw materials. The high temperature of the output after calcination needs to be cooled. The double-layer water jacket cooling method has the disadvantages of uneven cooling, high discharge temperature, and short service life of the equipment. Chinese patent CN101362951B is a cooling water jacket for petroleum coke tank calciner , including a primary heat exchange device for enclosing a high-temperature material passage, the primary heat exchange device includes an annular upper...

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Problems solved by technology

[0003] In order to overcome the deficiencies of the existing cooling water jacket of the tank type calciner, which is prone to fluffing, large thermal deformation, and small secondary heat exchange area, the present invention provides a material cooling device for anthracite or petroleum coke after calcination, the anthracite or petroleum coke After the coke is calcined, the hopper of the material cooling device is changed from a taper to a vertical one, and the two sides are changed to be smaller at the top and larger at the bottom to increase the volume of the material. The front and rear membrane walls have a certain curvature, which is a flexible connection to prevent thermal deformation from affecting the welding joint. The number of secondary heat exchange equipment is increased, which can improve heat exchange efficiency and prolong service life compared with existing technologies

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