Catalyst feeding device

Abstract

The invention discloses a catalyst feeding device which comprises a feed bin, a buffering bin, a feeding switching valve, a feed bin base, a conveying pipe and a distributor. The feed bin is positioned above the buffering bin and connected with the buffering bin through a bolt, and two sides of the bolt are respectively provided with a cushion block. The feeding switching valve is arranged between the feed bin and the buffering bin, the conveying pipe is a corrugated plastic hose, the upper end of the conveying pipe is connected with the buffering bin, the conveying pipe penetrates a central hole in the bottom of the feed bin base, the lower end of the conveying pipe is sleeved on the outer side of a distributing pipe of the distributor, and the lower portion of the buffering bin is placed in a frame of the feed bin base. The catalyst feeding device has the advantages that mechanical damage can be effectively prevented in the catalyst feeding process, catalysts are uniformly distributed, feeding speed is conveniently controlled, and the like.

Description

technical field [0001] The invention relates to the prevention technology of clogging of material pipe in the tank during the production process of phenol, and more specifically relates to a catalyst feeding device. Background technique [0002] The benzene hydrogenation catalyst is used to accelerate the hydrogenation chemical reaction, and the benzene hydrogenation catalyst feed refers to feeding the benzene hydrogenation catalyst into the hydrogenation reactor before the hydrogenation unit is put into use. At present, the domestic method of feeding benzene hydrogenation catalyst is to remove the top end cover of the hydrogenation reactor after dismantling the flange bolts, and transfer each bag of about 1,000 kg of catalyst from the top of the reactor about 20 meters away from the ground to the bottom of the reactor. The catalyst support grid is dumped, and after a certain amount of feed is installed, a liquid distributor tray and a catalyst support grid are installed, an...

AI Technical Summary

Problems solved by technology

First, the distribution of the catalyst in the reactor is not uniform, and the gap between the catalysts is large

Second, catalysts with spherical solid particles are easily broken by mechanical damage under the action of gravity after falling from a high altitude

The above two defects will affect the good contact between the reactant and the catalyst and the service life of the catalyst, thereby affecting the efficiency and output of the hydrogenation reaction

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