an impeller feeder

Abstract

The invention discloses an impeller feeder, which comprises a casing, a feed inlet and a discharge outlet are respectively arranged on the upper part and the lower part of the casing, and an impeller is arranged inside the casing, and the impeller includes a wheel groove sheathed on a rotating shaft At the bottom of the wheel groove, several blades are arranged at intervals along the circumferential direction; the area of ​​the impeller corresponding to the inner wall of the feeding side of the casing has N blades inclined upward, wherein N is greater than or equal to 2, and the N blades The angle formed between the radially outer edge of at least one blade and the lower end of the feeding side wall of the feed port and the horizontal plane is smaller than the natural accumulation angle of the material; the inner wall of the feeding side of the casing and the blade The gap between them is greater than 2.5 times the maximum diameter of the material. The invention has a compact structure, does not suffer from severe wear when meeting the requirements of full-width feeding, can prevent material jamming, improves control precision, greatly reduces equipment maintenance workload, and reduces equipment power consumption.

Description

Technical field [0001] The invention relates to a conveying machine, which is especially suitable for the quantitative feeding of dry granular materials and the production process that cannot be interrupted for a long time. Background technique [0002] Dosing equipment is often used in the engineering field. Common dosing equipment mainly includes: vibrating feeder, belt feeder, scraper type feeder, screw feeder, impeller type feeding Machine waiting. The installation of the vibrating feeder requires a firm foundation and it is difficult to achieve the linear fine adjustment of the feed; the belt feeder is difficult to be fully sealed due to the adjustment requirements, and the dustproof effect is poor; the scraper feeder It belongs to pulsating feeding, and the feeding is not uniform and stable; although the screw feeder can feed stably, it is a point feeding, the feeding width is narrow, and the width is not uniform enough; the impeller feeder structure is closed , The dustp...

AI Technical Summary

Problems solved by technology

[0004] In actual production, under different application conditions, the impeller feeder has some shortcomings, and some problems will occur, which will affect the normal production in severe cases

For example, when the feed material contains a large amount of materials with large hardness and particle size, the problem of material jamming between the blade and the edge of the material often occurs. When it is more serious, the forward and reverse rotation of the impeller is blocked, and the impeller cannot rotate. The feeder cannot run, and the amount of material in the silo is relatively large, so maintenance will be very difficult

In addition, due to relying on the gap between the blade and the side wall to seal the material, severe wear and leakage will occur during operation. When the material supplied by the equipment is a abrasive material, the maintenance cycle of the blade will be shorter, which will Seriously affect the normal production operation, and there will always be materials stuck between the blade and the shell during the conveying process, the material is seriously broken, the useless power consumption of the feeder is large during operation, and the electric energy is seriously wasted

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