RU2526403C2 - Sluice rotor feeder - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to devices for pain transportation from bulk storage bin or sack receiver to pneumatic conveying system and relates to continuous batchers working in volume principle and can be used in food, construction, pharmaceutical, chemical and other industries. Sluice rotor feeder includes bin, casing with loading and unloading nozzles, hollow rotating rotor with hollow perforated blades and perforated hollow shaft installed in the casing. On the rotor shaft, movable air connection consisting of body, packing gland, bearings and flange is installed. Blade interior is made as one section, herewith, blade perforation is located in lower part of blade in three rows in staggered order being equally spaced and represents holes in the form of truncated cones with their large bases directed inside the blade.

EFFECT: invention permits to increase its efficiency, to eliminate dead zones between blades, to enhance efficiency, to simplify design.

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Description

The invention relates to a device for transporting flour from a bulk storage bin or bag collector to a pneumatic conveying system and relates to continuous batchers operating on a volume principle, and can be used in food, construction, pharmaceutical, chemical and other industries.

The closest in technical essence and the achieved effect is a gate feeder, consisting of a hopper, a housing with loading and unloading nozzles installed in the rotor housing with blades and a filter. The shaft and rotor blades are made hollow, interconnected. Perforation is made on the lateral surface of the blades. The internal volume of the blades is divided by a partition into sections with the possibility of uniform distribution of air along the side surface of the blade. On the side surface of the blade a multilayer filter material is strengthened with a decreasing proportion of the flow area in the direction of the blade or mesh [RF Patent No. 2327626, publ. 27.06.2008 Bull. No. 18].

The disadvantages of this design are the high air pressure in the channels of the blades, the complexity of manufacturing the design, the high degree of clogging of the air channels, which leads to compaction of the material, the formation of stagnant zones, uneven dosing of bulk material, reducing the performance of the feeder.

The technical task of the invention is to increase the productivity of the feeder, reducing the likelihood of the formation of stagnant zones of the rotor between the blades and simplifying the design of the feeder.

The object of the invention is achieved in that in a rotary airlock feeder including a hopper, a housing with loading and unloading nozzles, a hollow rotating rotor with hollow perforated blades and a perforated hollow shaft installed in the housing, the new is that a movable air connection is installed on the rotor shaft consisting of a housing, bearings, stuffing box packing, and a flange, the internal volume of the blade is made in the form of one section, and the perforation of the blade is located in its lower part in t and a series of staggered, at equal distance from each other, and represents a hole in the form of truncated cone, the larger base thereof an inwardly directed blades.

The technical result consists in increasing the productivity of the feeder, reducing the likelihood of the formation of stagnant zones between the blades of the feeder, increasing the reliability of the feeder.

Figure 1 presents the rotary lock feeder, figure 2 is a cross section of the blade and the rotor shaft of the feeder, figure 3 is a movable air connection.

The rotary gateway feeder comprises a housing 1 with loading nozzles 2 and unloading 3, two end caps 4, a perforated rotor blade, consisting of a hollow perforated shaft 5, on which blades 6 with conical holes 7 are mounted (Fig. 2). The movable air connection consists of a housing 11, a flange 12, a stuffing box 13. The feeder drive consists of a gear motor 8. The drive is hermetically sealed from impurities (dust). The feeder flange 9 of the housing 1 is attached to the flange of the outlet of the housing of the hopper.

 Gateway rotary feeder operates as follows.

The flour enters from the hopper into the housing of the feeder 1, then into the compartments of the rotary vane hollow rotor 10. The speed of rotation of the rotor 10 is controlled by the speed of rotation of the drive shaft, providing the required performance of the feeder. Air is supplied to the shaft cavity through the housing of the movable air connection 11 (Fig. 1, 3), then air enters the blades 6 through the openings in the shaft and then passes through the openings in the blades into the material layer, liquefying the dosed material and destroying the arches in it, preventing formation of stagnant zones. Next, the rotor 10 transfers the flour to the lower part of the feeder. The air coming in under pressure through the inlet pipe is mixed with flour and carries it through the outlet pipe 3 into the duct. The duct is connected to the flange 9 of the feeder.

The proposed rotary lock feeder can increase its productivity, eliminate stagnant zones between the blades, increase reliability, simplify the design.

Claims (1)

A rotary rotary feeder consisting of a hopper, a housing with loading and unloading nozzles installed in a hollow rotary rotor housing with hollow blades and a perforated hollow shaft, characterized in that a movable air connection is installed on the rotor shaft, consisting of a housing, bearings, stuffing box and flange, the inner volume of the blade is made in the form of one section, and the perforation of the blade is located in its lower part in three rows in a checkerboard pattern, at an equal distance from each other, and represents second openings in the form of truncated cone, the larger base thereof an inwardly directed blades.

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