Catalyst feeding equipment for polypropylene production

Abstract

The invention discloses catalyst feeding equipment for polypropylene production. The catalyst feeding equipment structurally comprises a feeding barrel, a driving machine, a preparation barrel, a driving machine, a transmission wheel and a supporting seat, wherein the driving machine is installed at the position close to the top of the feeding barrel and matched with the feeding barrel, the preparation barrel is located on one side of the feeding barrel, the lower portion of the driving machine is in transmission connection with the transmission wheel and movably matched with the transmission wheel, the transmission wheel is connected to the bottom end of the preparation barrel and is movably matched with the preparation barrel, a moving block receives different pushing forces along with the shape and size of a spherical catalyst, the telescopic property of a change rod is matched with the lifting displacement of the change rod, the spherical structure of an auxiliary ball assists the change rod to have different telescopic gradients, so that the moving block can swing and rotate within a small range, and the clamping abutting force with the catalyst is reduced; and through certain heavy pressure of an inner heavy ring and elastic cooperation of an elastic through rod, an outer abutting ring is driven to move, flexible change of the change rod is further assisted, the moving block can conveniently move under cooperation of an adjusting device, and the diameter width of a through hole is flexibly adjusted.

Description

technical field [0001] The invention belongs to the field of polypropylene, and more specifically relates to a catalyst feeding device for producing polypropylene. Background technique [0002] Polypropylene is an excellent thermoplastic synthetic resin with heat resistance, insulation, plasticity and other properties. It is a polymer synthesized after chemical addition polymerization using propylene as raw material. The excellent properties of polypropylene make it widely used in many fields Development and application, people often need to use catalyst feeding equipment in the production of polypropylene, so that the catalyst can improve the chemical reaction efficiency of polypropylene, which is beneficial to accelerate the production speed of polypropylene. [0003] Based on above-mentioned inventor's discovery, existing production polypropylene catalyst feeding equipment has the following deficiencies: [0004] Since the reaction of the catalyst in the reactant is carr...

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Problems solved by technology

[0004] Since the reaction of the catalyst in the reactant is carried out on the surface of the catalyst, its surface area plays an important role in dispersing the active components of the catalyst. During the process of being fed, the catalyst needs to be conveyed in a separate spiral, controlled by the opening of the catalyst storage tank. Spherical catalysts fall into the upper barrel by grading, usually with a fixed caliber, but the catalyst will have carbon deposits during use, and its volume will expand, and it is easy to get stuck at the drop port, resulting in longer intervals in catalytic feeding and carbon deposits At the same time, it also reduces the effective catalytic surface of the catalyst, resulting in lower catalytic efficiency

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