RU31377U1 - Joint feeder - Google Patents

Description

9PO3104418

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Joint feeder

The utility model relates to pneumatic conveying of bulk materials, namely, to the design of feeders for pneumatic conveying installations.

Known wavy feeder comprising a housing with loading and unloading holes with a rotor rotating in it, on which are mounted radially arranged blades equipped with sealing devices that interact with the working surface of the housing. USSR Author Certificate No. 816911, MKI B65G 53/46, 1981 (prototype).

The disadvantage of the gateway feeder is its lack of tightness, determined by the method of sealing rotating blades relative to the working surface of the feeder housing. Insufficient tightness determines the flow of unproductive air leaks through the leakage of the feeder, which is also determined by the pressure drop across the slot feeder.

The technical problem, the solution of which the utility model is directed, is to increase the tightness of the gateway feeder.

The technical result is achieved by the fact that in a joint feeder containing a pshow feeder having a housing with loading and unloading holes with a rotor rotating in it, on which are mounted radially arranged blades equipped with sealing devices interacting with the working surface of the housing, to the discharge opening of which is attached from below ejector feeder, as a result of which in the discharge opening of the pipose feeder due to the ejection effect is reduced

MKI B 65 G 53/46

5

static air pressure, which leads to a decrease in the total pressure drop across the gateway feeder and, as a result, to a decrease in the flow of unproductive air leaks through leaks of the gateway feeder and an increase in its tightness.

In FIG. 1 shows a joint spatula.

The joint feeder comprises a housing 1 with loading 2 and discharge 3 holes. In the housing on bearings 4, a rotor blade is installed containing radially spaced blades 5. To the discharge opening of the housing is connected a receiving pipe 6 of the ejector feeder 7, which has its input 8 and output 9 openings. An outlet material conduit 10 is connected to the outlet 9.

Joint feeder works as follows.

Bulk material flows gravitationally through the feed opening 2 into the rotor cells. When the rotor rotates, the cells filled with granular material in their lower position (opposite the unloading of the front window 3) are freed from granular material, which through the inlet pipe 6 enters the ejector feeder 7, where it is picked up by a stream of compressed air, is fed to the outlet 9 and then to the discharge material pipe 10.

Due to the ejection effect, the static pressure in the area of the inlet pipe 6 is less than in the area of the inlet 8 and outlet 9 of the ejector openings, which reduces the pressure drop across the gateway feeder and, as a result, reduces the flow of unproductive air leaks through the leakage of the gateway feeder, that is, increases its tightness .

Thus, the sequential arrangement of two feeders: airlock and ejector, allows to increase the tightness of the feeder due to the ejection effect.

Claims (1)

A joint feeder, including a lock feeder, having a housing with loading and unloading openings with a rotor rotating in it, on which radially located blades are mounted, equipped with sealing devices that interact with the working surface of the housing, characterized in that an ejector feeder is attached to the discharge opening of the lock feeder from below .