DE2103060C - Device for importing kor mgen bulk goods in a pressurized conveying line - Google Patents

Description

and 32, which protrude beyond the tubes. When material is introduced into hopper 32, the gas escapes only through the space between the two funnels, but without the inlet and the increase in speed to hinder the material moved downward under the action of gravity in the pipe 3. At the lower end 31 of this tube is enough the speed of the material for the generation of a back pressure in the pipe 2, which causes the ascent of air practically disappears in this pipe: The material thus continues its downward movement continues and enters line 1 along arrows 30. It is then indicated by the arrow 10 Gas stream taken.

If the loading of solids is too high, pipes 2 and then 3 fill completely with material. The back pressure resulting from the speed of the material decreases; he will now but replaced by a static counterpressure that is equal to the height of the column of material

Regardless of the material impact, there are conditions in the device

tight introduction without accumulation of gas or material τι ill

The device is very simple, simple and not prone to breakdowns and loss.
It is turned away for the infeed of

granular corundum with a grain size of less than 5 mm m a pneumatic conveying line with a horizontal section of 10 m in length, to which a vertical section of 12 m in length is connected. The pipe 2 has an inner diameter of 50 mm at a height

of 800 mm (without the funnel). The tube 3 has an inside diameter of 40 mm. The pressure m in line 1 is 0.08 bar. The throughput of material is 3.5 t / hour.

1 sheet of drawings

Claims (2)

1 2 From the German utility model 1 906 476 patent claims: A cellular wheel task is therefore known in which a slender one that extends the hopper downwards 1. Device for introducing granular Mas pipe ends immediately above the cell edge and surrounded by senguts in a pressurized form 5 a weiderleitung connected to the cellular wheel housing, consisting of a vertical pipe in th, which is in the upper area with the delivery line protruding, is provided there in ventilation openings. Through this supply direction opening feed pipe, the top order of which is supposed to merge into a funnel shape due to leaks at the end of the meter, the air passing by without disturbing the air that flows into the io grain inflow via the openings into the atmosphere conveying line (1) protruding section of the discharged. If, however, the bulk material inlet feed pipe (2) is flat transversely to the conveying direction, it is occasionally transported away through the cellular wheel and squeezed, so that a thin opening gap (21) exceeds the pressure pipe, collects in the annular space for the bulk material, and that remains inside between the funnel pipe and in the vent pipe of the funnel (22) a second funnel (32) with excess grain material, which is then immediately sorted, to which a second funnel can be blown downwards.
Pipe (3) connects. From British Patent 736 207 is 2. Device according to claim 1, characterized in that the second, known downwardly to grain material in conveying lines, the pipe (3) adjoining the second funnel (32) is essentially formed by a funnel are desnahe above the connection point (23) intermediate sen outlet pipe into the feed pipe projects and see the outer funnel (22) and the food grade with an opening in the conveying direction is seen ve ^r. At tube (2) ends, whereby between the end of this device the granular mass in the funnel and in the second tube and the inner wall of the outer tube practically forms a verren funnel and an annular gap remains. 35 circuit for the delivery line, and the trouble-free operation practically requires a constant filling of the funnel and at least the outlet pipe with a practical constant material feed into the conveyor derleitung. In contrast, the object of the invention is to be found based on creating an insertion device that is simple and less susceptible to wear and that The invention relates to a device depending on the material exposure to disturbance Introducing granular bulk goods into an under free works. Overpressure conveying line, consisting of 35. For this purpose, the above-mentioned is common for a device vertical type projecting into the delivery line, the embodiment according to the invention therein to see the feed opening there in the conveying direction that the one protruding into the conveying line tube, the upper end of which in a funnel shape over-section of the feed tube transversely to the conveying direction goes. is squeezed flat so that a thin opening gap The introduction of granular bulk goods in 40 remains for the bulk goods, and that a second funnel is arranged within the space with air circulation or blower overpressure funnel, to which, according to the prior art, a second tube is connected with the help of a convergent downward,
yawing-diverging nozzles, static locks According to a preferred embodiment of the or rotary cell locks. All these devices invention ends the second, down to the have certain defects. 45 second funnel connecting tube close above The converging or the junction between the outer funnel and the diverging nozzle connected in a conduit is designed so that at its and the feed tube, with a negative pressure prevailing between the end of the throat, which feeds the second tube and the inner wall of the outer of solids into close to the neck. An annular gap remains in the funnel.
On the one hand, this device has the shortcoming that only 50. In the drawing, an embodiment of the low throughputs is possible and, on the other hand, the training according to the invention is shown in section on the diverging part of the arrangement because of the. considerable speed, which the solids According to this drawing is a conveyor line I for after their occurrence, rapid wear and tear with the pneumatic conveying of bulk goods on. 55 provided a feed pipe 2, which at its upper In the case of static locks, the lock chamber has a funnel 22 at the end. The feed pipe 2 is at the top and bottom a valve or a slide, which is squeezed flat at its lower end in such a way that an alternating filling of the lock space with a thin opening gap 21 running in the direction of flow of the compressed gas (arrow atmospheric pressure and emptying into the transport 10) forms. In line made possible. Such a device ⁶ ° the funnel 22 of the feed pipe 2 is a second one is generally provided twice, so that a funnel 32 is introduced, which can be ensured continuous operation at its lower end, a second pipe 3 with an end 31 open at the bottom each of the one lock chamber has material, the end open at the bottom receiving above the, while the other is emptied into the transport line connecting point 23 between the outer funnel. In this device 65 occur 22 and its feed pipe 2 is located. The path of the disturbance due to wear of the valves or slides for bulk goods is marked by the arrows 30,
Especially when conveying solids, which have a When the device is empty, pressurized gas escapes cause increased abrasion. through tubes 2 and 3 and through funnels 22