Feed crushing device

Abstract

The invention discloses a feed crushing device. The feed crushing device comprises a rack, wherein a crushing conveying tube is arranged on the rack; a grinding hopper is fixedly arranged in a material receiving box; a grinding mechanism is rotatably connected into the grinding hopper; a plurality of filter holes are formed in the bottom wall of the grinding hopper; the top of the grinding hopperis communicated with a negative-pressure mechanism; the crushing conveying tube is rotatably connected with a first negative-pressure blade, a circular disc and a positive-pressure blade; crushing cutters are uniformly distributed in the peripheral direction of the circular disc; the negative-pressure mechanism comprises a negative-pressure tube; a second negative-pressure blade is rotatably connected into the negative-pressure tube; a filter screen covers the second negative-pressure blade; one side of the negative-pressure tube is communicated with a collecting tube; the negative-pressure tube is communicated with an air outlet tube; a plurality of branch tubes are communicated with the air outlet tube; ends, away from the air outlet tube, of the branch tubes are communicated with the grinding hopper; and the branch tubes are positioned on the bottom wall of the grinding hopper. Compared with the prior art, the feed crushing device can perform three-time crushing on feed, and improves preliminary crushing efficiency of feed; and an air aspirator pump does not need to arrange, and the second negative-pressure blade only needs to link by a rotary shaft, so that the cost of the whole device is reduced.

Description

Technical field [0001] The invention belongs to the field of crushing equipment, and particularly relates to a feed crushing device. Background technique [0002] When raising livestock, the newly-purchased feed has large pellets, which are not suitable for livestock to eat and digest. It is necessary to crush and grind the feed ingredients to obtain feed with smaller pellets for livestock to eat; the existing processing methods usually use existing ones The pulverizer directly pulverizes various feeds. The existing pulverizer includes a pulverizing cylinder. The pulverizing cylinder is connected with a pulverizing knife and rotating the pulverizing knife to pour the feed into the pulverizing cylinder. The pulverizing knife starts to pulverize the feed, so that The particle size of the feed becomes smaller, the feed will be more conducive to digestion and better absorb the nutrients of the feed; but in the crushing process, the crushing knife can only achieve the preliminary crus...

AI Technical Summary

Problems solved by technology

[0004] The above scheme realizes the further grinding of the feed and the ability to collect the feed powder, and solves the problems existing in the prior art, but the above scheme still has the following problems: the feed is directly put into the feed grinding cylinder, and the feed stays on the grinding blade If the time spent on the feed is short, the feed will quickly fall into the bottom of the feed grinding cylinder, only the blades at the bottom of the feed grinding cylinder can contact the feed, and the efficiency of the initial crushing of the feed is average; on the other hand, when absorbing feed dust, An air pump needs to be installed in the device, which increases the cost of the whole device

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