SU1289999A1 - Air cleaner for hydraulic systems of entry-driving machines - Google Patents

Abstract

The invention relates to the mining industry. The purpose of the invention is to improve the air purification of finely dispersed poorly wettable dust, reduce the labor intensity of manufacturing and increase reliability by simplifying the design and eliminating the possibility of clogging of the output channels. The housing 1 with the inlet 7 and the outlet 8 is divided by the opening with the horizontal separator IND 00 with with 13 -s

Description

4 on the top 6 and filled with the working fluid (GF) 9, the lower 5 chambers (K) In K 5 there is a vertically located accelerator (G) 17, parts K 5 and 6 between them, with the lower end located in GF 9, and the upper mounted on the separator 4. In the opening 16 of the separator 4, a centrifugal dust separator is mounted, which is a tubular coil 11 in the form of a helical spiral, indicating its internal cavity K 5 and 6. One end 14 is located above the lower end U 17 and the other is set to K 6. Under the action of dilution at the orifice 8 of RZh 9 through a coil and at the 17th post AET

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The invention relates to the mining industry and is intended to reduce the dust content of the air entering the oil tanks of the hydraulic systems of tunneling machines, to increase reliability.

The purpose of the invention is to improve the air purification from finely dispersed poorly wettable dust, reduce the manufacturing labor intensity and increase reliability by simplifying the design and eliminating the possibility of channel blockage.

Fig. I shows an air cleaner for the hydraulic systems of roadheaders, a longitudinal section, an exemplary embodiment; in Fig. 2, the same longitudinal section is an exemplary embodiment; Fig. 3 is the same longitudinal section of the embodiment shown in FIG. 4 is the same longitudinal section, an example of the embodiment in FIG. 5 is the same, longitudinal section an example of the execution; in fig. 6 - the same longitudinal cut, an example of execution; Fig. 7 is the same longitudinal section, an example of the embodiment; in fig. 8 - the same, longitudinal section, an example of execution; in fig. 9 - the same, longitudinal section, example of execution; Fig. 10 is the same longitudinal section, an example of the embodiment; in fig. 11 - the same, longitudinal section, example of execution; FIG. 12 is a section A-A in FIG ,, in an enlarged scale; Fig, 13 - an example of the operation of air

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from K 5 to K 6. When the level of RJ 9 drops to the level of the end of the 14th coil end, the movement of RJ 9 through V 17 to K 6 stops. The forced air under the action of a vacuum through the opening 7 enters K 5. With a sharp turn of the dusty jet at the entrance to the coil 11, it is partially cleaned from dust which, wetted by RZ 9, accumulates at the bottom of K 5. Under the action of centrifugal forces, dust particles and R 9 in the coil 11, a sludge film is formed, which, on leaving the coil 11, flows into RJ 9. The cleaned air passes through the opening 8 to the oil tank of the hydraulic system of the combine. 22 il.

the cleaner shown on fig. 3 for absorption; in fig. 14 is an example of the operation of the air cleaner shown in FIG. 4 for absorption; Fig, 15 is an example of the operation of the air cleaner shown in Fig. B for absorption; in fig. 16 is an example of the operation of the air cleaner shown in FIG. 9 for suction; in fig. 17 is an example of the operation of the air cleaner shown in FIG. 3 for discharge; Fig, 18 is an example of the operation of the air cleaner shown in figure 4, the discharge; in fig. 19 is an example of the operation of the air cleaner shown in FIG. 8 for injection; in fig. 20 is an example of the operation of the air cleaner shown in FIG. 9 for the injection; in fig. 21 — node 1 in FIG. 13-16, on an enlarged scale; in fig. 22 is a section BB in FIG. 13-16, on an enlarged scale.

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The air cleaner for the hydraulic systems of tunneling machines consists of body 1, top 2 and bottom 3 covers and horizontal separator 4, through which the internal space of body 1 is divided into two chambers 5 and 6, the bottom 5 of which has a hole 7 for inlet of dusty air from atmosphere of production for the subsequent cleaning of dust, and the upper chamber 6 is made with

hole 8 for the release of purified air and connect it to the air space of the oil tank. The lower chamber 5 is partially filled with working fluid 9 to level 10. The upper 2 and lower 3 caps provide a tight connection with the housing 1 and exclude any air leaks into the upper chamber 6 directly from the atmosphere, min 7 hole for dusty air inlet

The air cleaner is equipped with a coil 11, made in the form of a helical spiral, through the cavity 12 of which the cleaned air passes. The coil 11 may be cylindrical form, as shown in figure 1,4,7,8,9,14, 15, 16, 18, 19, 20; conical, as shown in Fig.2,3,5,6,10,11,13 and 17. The coil 11 can be installed in the housing 1 with a longitudinal axis 13 vertically, as shown in Fig.1, 2, 3, 7, 8, 13, 15, 17 and 19, or horizontally, as shown in FIG. 4, 5, 6, 9 ,, 10, AND, 14, 16, 18 and 20. The coil 11 can also be installed obliquely. A coil-shaped coil 11 with a vertical longitudinal axis can be made with an increase in diameter downwards, as shown in FIG. 2, Shch1I with a decrease in diameter downward, as shown in FIG. 3, 13 and 17. A cone-shaped coil 11 with a horizontal longitudinal axis 13 may be with increasing diameter from left to right, as shown in fig. 6 and 10, or from right to left, as shown in FIG. 5 and 11 The coil 11 can be with any other generator, for example, as part of an ellipse, a circle, a hyperbola, a parabola, etc. For this, the coil 11 can be left or right winding. The coil 11 may be located in the lower chamber 5, as shown in FIGS. 1-6, 13, 14, 17, 18, or in the upper chamber 6, as shown in FIG. 7-11, 15,, 16, 19 and 20.

The coil 11 may be made of a steel tube or from a tube of colored materials, such as brass, aluminum, etc. It is also possible to perform an emeevika 11 from a rigid or flexible plastic tube. It is also possible to use a combined design from a rigid screw frame and a flexible plastic tube mounted on it.

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The dimensions of the coil 11 and the cavity 12 for the passage of the cleaned air can be any, but regardless of this, they should provide with the smallest dimensions the highest possible air velocity and small aerodynamic resistance, small pressure losses and the associated small vacuum in the airspace of the oil tank hydraulic harvester combine.

The coil inlet end 14 is located in the lower chamber 5 below the level 10 of the working fluid 9, and the output end 15 is connected to the upper chamber 6 with the possibility of forming an air passage from the lower chamber 5 to the upper chamber 6 through the working fluid 9. For this horizontal separator 4 lame holes 16 for connecting thereto an output end 15 with an arrangement of a coil 11 in the lower chamber 5, as shown in FIG. 1 to 6, 13, 14 and 18, or for the passage through it of the inlet end 14 with the arrangement of the coil 11 in the upper chamber 6, as shown in FIG. 7-11, 15, 16, 19 and 20.

To improve the operation of the air cleaner, an accelerator 17 is installed in the lower chamber 5 with a longitudinal opening 18. The upper end of the accelerator 17 is connected to the opening 19 in the horizontal 5 divider 4 so that the longitudinal opening 18 is connected to the upper chamber 6, the lower end 20 of the accelerator 17 is located below the bottom end 21 of the input end 14 of the coil 11.

The longitudinal opening 18 of the accelerator 17 reduces the flow time of the working fluid 9 from the lower chamber 5 to the level of 22 at 5 lower end 21 ..

The air cleaner for the hydraulic system of tunneling machines works as follows.

An air cleaner with a hole 8 for the exit of purified air is connected to the airspace of the oil tank of the hydraulic system of the tunnel miner above the level of the working fluid in the oil tank.

Under the action of vacuum working fluid 9 through the cavity 12 inside the coil 11 and through the longitudinal hole 18 of the accelerator 17 enters

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from the lower chamber 5 to the upper chamber 6, resulting in a decrease in the level of the working fluid 9. When the working fluid 9 drops to a level 22 corresponding to the level of the lower end 21 of the inlet end 14 of the coil 11, the movement of the working fluid through the accelerator 17 fe upper chamber 6 stops and under the action of vacuum at the opening 8 of the housing I, FIG. 13 - 16, indicated by the sign -, the dusty air 23 from the atmosphere of the working through the opening 7 enters the air space of the lower chamber 5. At the entrance to the cavity 12 of the lower end 21 - the input end

14meee.Eika when sharply. When the air jet 24 is rotated, the dust is partially cleaned by wetting its working fluid (FIG. 2). The wetted pig 25 remains in the working fluid 9 and accumulates in the form of sludge 26 in the bottom of the lower chamber 5. The air 27 with the remaining liquid and trapped working fluid enters the coil 11 and rotates about the longitudinal axis 13. Under the action of centrifugal force arising from the rotation, the working fluid particles 28 and the slit are pressed against the peripheral part of the inner surface of the cavity 12 and form a film of sludge 29 moving together with the air (Fig.22). Sludge and air from the cavity 12 output end

15 Exit to the upper chamber 6. This is where the final air cleaning takes place. A wetted pip with 6pH3raMii working fluid flows along the walls into the working fluid of the upper chamber at level 30. The cleaned air escapes through the opening 8 and enters the oil tank of the hydraulic system of the mining combine, prevent contamination of the oil in the oil block and the increased reliability of the hydraulic system

and the tunneling machine as a whole. The working fluid captured by the air entering the upper chamber b, through the longitudinal opening 18 of the accelerator goes into the lower chamber 5 B, as a result of which the working fluid circulates. Together with the working fluid, through the longitudinal opening 18 of the accelerator 17, from the upper chamber 6 to the lower chamber 5, the wetted pit leaves and precipitates to the bottom

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housing 1. Thereby, the accumulation of dust in the upper chamber 6 is prevented and clarification of the working fluid is ensured.

When draining the working fluid into the oil tank and the associated increase in the volume of the working fluid in the oil tank, air- from the oil tank under pressure - Bbmie atmospheric, - marked with +, enters through the hole 8 into the upper chamber 6, press the working fluid from the upper chamber 6 into the lower chamber 5 through the cavities 12 in the coil and the longitudinal opening 18 of the accelerator 17, as a result of which the working fluid in the lower chamber 5 reaches the level 31, (Fig. 17-20). When the working fluid from the upper chamber 6 to the lower chamber 5 together with the working fluid, the wetted dust is carried away, as a result of which the upper chamber 6 is cleaned, then the wetted dust is carried away through the opening 7 to the laboratory.

Claims (1)

Invention Formula 0 0 An air cleaner for the hydraulic systems of roadheaders, including a housing with inlet and outlet openings, with a horizontal top and an air separator fixed inside the housing with openings. with a lower working fluid, the accelerator is located vertically, which connects the chambers to each other, with the lower end located in the working fluid, and the upper one mounted on a horizontal separator, in the opening of which a centrifugal separator is fixed, the inner cavity of the lower and upper chambers, characterized in that, in order to improve air purification, from a finely dispersed poorly wetted fluid, reduce the labor intensity of manufacture and increase reliability by simplifying the design and eliminating the possibility of clogging of the channel, the centrifugal dust separator is formed as a tubular coil, by a curved BINTOVOY spiral, one end of which is located in the working fluid vshe end of the lower end of the accelerator, and the other is mounted in the upper chamber. five 0 five 289999 FIG. 6 FIG. 7 Fi & .Yu eleven Y ,,, V ,, / ,, UU X at   i 14 Fig.P A-l Fg / g 1Z Figure 1b i; F1lg.Sh FIG. 15 Fig. & Fig.17 .eight fPKz. 13 F1lg.20  25 cpuf.21 21 yeri 22 Editor I. Casard Compiled by A. Skalunov Tehred V. Kadar Order 7881/31 Circulation 452 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035. Moscow, Zh-35, Raushsk nab, d.4 / 5 Production and printing company, Uzhgorod, Projecto st., 4 Proofreader M. Pojo