Roller type screening device of secondary circulation structure for iron oxide pigment

Abstract

The invention relates to the technical field of iron oxide pigment, and particularly relates to a roller type screening device of a secondary circulation structure for iron oxide pigment. The roller type screening device comprises a device body, wherein the device body comprises a treatment box; a rotating cylinder is arranged in the treatment box; the bottom end and the top end of the rotating cylinder are fixedly connected with control shafts; the output end of a servo motor is sleeved with a crawler belt; and the end, away from the servo motor, of the crawler belt is sleeved with the surfaces of the control shafts. According to the roller type screening device, the rotating cylinder and filter holes are arranged, the iron oxide pigment in the rotating cylinder rolls in the rotating cylinder, when the rotating cylinder operates, large pigment particles can be intercepted, the pigment in the rotating cylinder can be dispersed, and therefore the rotating cylinder can thoroughly and rapidly screen the pigment, and the problems that an existing screening device is generally a shaking filter screen, the too large particle pigment can be screened out only after shaking for a long timeduring screening, the phenomenon of incomplete screening exists, and the screening efficiency and quality are reduced are solved.

Description

technical field [0001] The invention relates to the technical field of iron oxide pigments, in particular to a drum type screening device with a secondary circulation structure for iron oxide pigments. Background technique [0002] Iron oxide pigment is a kind of pigment with good dispersibility, excellent light fastness and weather resistance. Iron oxide pigments mainly refer to iron oxide red, iron yellow, iron black and iron brown four types of coloring pigments based on iron oxides, among which iron oxide red is the main one (accounting for about 50% of iron oxide pigments) , Mica iron oxide used as an anti-rust pigment and magnetic iron oxide used as a magnetic recording material also belong to the category of iron oxide pigments. Iron oxide is the second largest inorganic pigment after titanium white, and also the largest color inorganic pigment. Among all the iron oxide pigments consumed, more than 70% are prepared by chemical synthesis, which is called synthetic ir...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a drum type screening device with a secondary circulation structure for iron oxide pigments, to solve the problem that the existing iron oxide pigment particles proposed in the above-mentioned background technology still have different particle sizes after they are made. phenomenon, therefore, after it is made, the staff needs to further sieve it. The existing sieving device is generally a vibrating filter screen, which needs to be shaken for a long time during sieving to remove the oversized granular pigment. Sieve out, and there is a phenomenon of incomplete sieving, which reduces the efficiency and quality of sieving

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