SU1364569A2 - Screw conveyer for transportation of loose materials - Google Patents

Description

(L

with

Oi 4

cl

05

with

14)

water. Each section connecting transition element 4 contains a tapered conical section 16 of the screw that expands downwards. The latter passes into a cylindrical tape helix (c) 17. Section 16 and the spiral 17 are made of multiple. On the inner edges of the p. 17 and coaxially with its outer surface is fixed annular pipe (p) 24. The lower edge of the P 24 is placed at the level of the lower end edges of the coils C 17.

The upper edge of the P 24 is located below the end of the screw of the previous section. The material that rises up, passes through P 24, is centrifugal force dropped on C 17. Part of the material enters the channel of element 4, accumulates there as the screw rotates and is picked up by the initial sections of coils C 17. At the same time P 24 prevents the material from scattering when it meets turns C 17 and pouring down. 1 hp f-ly, 5 ill.

one

The invention relates to a lifting machinery industry, namely to screw conveyors for transporting bulk materials that can be used in agriculture, in the building materials industry, in the chemical industry and in other branches of the national economy and is an improvement of the device. on auth. № 1077839 ...

The purpose of the invention is to reduce the power cost of transporting the material and increase the productivity of the conveyor.

FIG. 1 shows a screw conveyor for vertical transport of bulk materials; Fig. 2 shows a transitional element with an intermediate support, connecting the previous and next sections of the conveyor, a longitudinal section; in fig. 3 is a section A-A in FIG. in fig. 4 - receiving the tape section of the screw subsequent section of the conveyor; Fig. 5 is a flow chart of the material in the passage member of the vertical screw conveyor.

The screw conveyor, mainly for vertical transportation of bulk materials, consists of the lower section 1, one or several intermediate sections 2, the upper section 3, transition elements 4 connecting the sections of the conveyor, and the drive 5. The lower section 1 of the conveyor includes a cylindrical case 6, a transport screw 7, the feed funnel 8 and the lower support 9. The intermediate section 2 of the conveyor includes a cylindrical casing 10 and a transport screw 11. The upper section 3 of the corcherer, in turn, contains a cylindrical casing 12, tr nsportiruyuschy screw 13, the unloading tube 14 and the top support 15. Each of the transition elements pe0 4 soednn S. 1x conveyor section comprises raspirayuschiys downwardly tapered portion of the screw 16 (Figure 2) is a continuation of the conveying screw yuschiys posleG blowing section. Conical section

16 Screw Transits into a cylindrical ribbon internal spiral 17. Sections 16 and 17 of the screw are made multiple (figure 2 and 4),

0

The feed section 18 of the screw of the previous section of the conveyor is inserted into the internal cavity of the tape helix 17 with a radial clearance, when the areas of the spiral 17 and the screw 18 overlap in length in the axial direction. The feed section 18 of the screw of the previous section of the conveyor can be made at least

0 least two-way. In the inner cavity of the ribbon helix

17, at some distance from the end of the screw 18, an intermediate bearing 19 with a rolling bearing 20 is installed.

35 or slip. Intermediate bearing 19 mounted on the shaft. The shafts of the screws of the previous and subsequent sections can be interconnected by means of known methods, for example, by using a splined joint transmitting a torque, and pins accepting axial load.

The conical 16 and the cylindrical 17 sections of the screw of the transition element 4 are enclosed by the sections of the casing 21-23, which copy the outer components of the respective sections of the screw.

The initial section of the ribbon helix 17 is provided with an annular nozzle 24, the outer surface of which is connected to the inner one, fixed by its outer surface on the inner edges of the helix helix 17 coaxially, and the lower edge of the nozzle 24 is placed

at the level of the lower end edges of the material with the weight of - 20. At the same

coil tape helix 17, and the upper edge of the nozzle is located below the end of the screw of the previous section.

The intermediate support 19 is connected to the casing 25 of the previous section by means of rods 26, which connect the support to the casing of the previous section and pass in the gap between the feed section 18 of the screw of the previous section of material 30 at the time of its meeting with the pedal and the subsequent conveyor sections. The position of the rods connecting the support to the casing and located in the gap between the feed and the receiving section of the screw is shown in FIG. Thus, as shown in Figures 2 and 3, the receiving section of the ribbon helix of the subsequent section of the conveyor covers the under- 40 When moving from the supply section, the hip support with its connections and the final delivery section of the screw of the previous section of the conveyor, so that the latter are enclosed inside the tape section of the screw.

A conveyor for vertically transporting bulk materials works as follows.

By overloading the previous section of the conveyor to the receiving section of the screw and far into the transporting part of the subsequent section of the conveyor, the material bypasses the intermediate support 19 and never touched it and did not experience resistance from the sides of the latter. At the same time the material breaks the screw between its feeding

devices are fed to the boot 50 receiving site in the radial

the funnel 8 of the lower section 1 of the conveyor, where it is picked up by the screw 7 and transported upwards to the transition element 4 (Fig. 1). In the transitional horizontal direction under the action of centrifugal forces, the force of gravity was not experienced in the direction of its movement. The material located (Fig. 2), extending below the lower part of the transition element and dismounted and passing through the annular patrol-open annular channel of the catcher 24, exerts by centrifugal force loose material that does not fall from the falling section 18 of the screw. directly to the ribbon propeller section to the receiving helix of the subsequent receiving

the first part of the tape helix 17 of the subsequent section of the conveyor. At the same time, a part of the material goes directly to the section of the ribbon helix 17 and is transported upwards, while the other part passing under the receiving turns of the ribbon helix 17 collapses and accumulates in the annular channel opened from above, formed by the cylindrical section of the casing 22 and the end surface of the casing 23 and an annular nipple 24. When the screw rotates, the material that did not fall on it, accumulated in the annular channel, is picked up by the initial sections of the turns of the ribbon helix 17 and transported the bulk material, which did not fall directly on the working sections of the screw of the ribbon helix, and which descended into the annular channel of the transition element 4, does not pour back down to the previous section of the conveyor, as this is prevented by the annular nipple 24. The same nipple prevents spreading

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the red edges of the turns of the ribbon helix. From the ribbon helix 17, the bulk material passes to the conical tapered section 16 and then goes to the next section of the conveyor.

The movement pattern of the material in the transitional element of the vertical screw conveyor is shown in FIG. 5.

40 When moving from the delivery area

the screws of the previous section of the conveyor to the receiving section of the screw and then to the transporting part of the subsequent section of the conveyor the bulk material passes around the intermediate support 19, never touched it and did not experience resistance from the latter. In this case, the material passes the gap of the screw between its feed

5.13

the conveyor section, and prevents it from shedding back into the previous section. . The absence of reverse movement of the material at the junction of the supply and receiving sections of the conveyor directed against the main flow reduces the accumulation of material in the intermediate support zone, improves the condition of transporting it up, reduces the power required for transportation, and reduces the likelihood of blockage and blockage of the conveyor.

Claims (1)

1. Screw conveyor for the transportation of bulk materials - by author St. No. 1077839, I distinguish FIG L u with the fact that, in order to reduce the cost of power to transport the material and increase the productivity of the conveyor, it is equipped with an annular nozzle fixed with its outer surface on the inner edges of the ribbon helix coaxially, with the lower edge of the nozzle coils of the ribbon helix, and the upper edge of the nozzle is located below the end of the screw of the previous section. 2, the conveyor according to claim 1, characterized in that the conical section of the screw of the previous conveyor section is at least two-way. // 73 fig.Z L