Drop ball forming device and oil ammonia column forming device

Abstract

The invention relates to the field of drop ball forming, and discloses a drop ball device for forming drop balls and an oil ammonia column forming device. The drip ball device includes: a slurry chamber (3), an oil chamber (2) and a dripper (1), wherein the slurry chamber (3) is provided with a compressed air inlet (4) and a slurry inlet (5), and the The base plate of the slurry chamber (3) has a plurality of slurry outlets (10) protruding toward the outside of the slurry chamber (3); the oil chamber (2) is connected to the outside of the base plate of the slurry chamber (3), and the slurry The lower end of the material outlet (10) extends into the oil chamber (2), and corresponds to a plurality of oil outlets (9) extending to the outside of the oil chamber (2) provided on the bottom plate of the oil chamber (2). An oil inlet (6) is provided; the dripper (1) is sleeved on the lower end of the slurry outlet (10), and the lower end of the dripper (1) protrudes from the oil outlet (9) corresponding to the slurry outlet (10) . It solves the phenomenon of slurry sticking or clogging at the dripper, facilitates the replacement of the dripper, and can produce spherical particles continuously and on a large scale.

Description

technical field [0001] The invention relates to the field of forming oil and ammonia columns, in particular to a ball dropper for forming solid slurry drop balls. Background technique [0002] The oil ammonia column forming method is a common method for preparing alumina, silicon oxide, silicon aluminum and other pellets. In this method, the sol (such as aluminum sol, silica sol, etc.) is dropped into the oil ammonia column, so that the sol particles form balls in the oil phase in the upper layer of the oil ammonia column, and gel in the ammonia water in the lower layer. After aging, the gelled particles are dried and calcined to obtain spherical solid particles. The pellets prepared by this method have uniform structure, low wear and high strength, and are widely used as fixed bed and moving bed catalysts, catalyst carriers, and adsorbents. [0003] Industrial catalysts have different shapes and sizes according to the process operation requirements, so the molding operati...

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the problem that the dropper of the oil ammonia column forming device in the prior art is easy to block, the dripper is stuck to the slurry, and the oil layer of the oil ammonia pool of the oil ammonia column forming device is consumed too quickly, and provides The ball dropper and the oil ammonia column forming device are used for the drop ball forming. The drop ball device overcomes the defects of slurry blockage and sticking, and also solves the problem of excessive consumption of the oil layer in the oil ammonia pool. The drop ball device and the oil ammonia column are formed The unit can be run for a long period of time, and the drip-tip can be replaced more easily

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