SU1180525A1 - Versions of arrangement for ventilating open mines - Google Patents

Abstract

1. A device for ventilation of quarries containing a boom in the form of a spatial tubular truss with inlet f and outlet nozzles, pumping units, pipelines for fuel supply and heat removers placed in the boom, in the form of nozzles and heat exchangers located above the nozzles, characterized by the fact that, in order to increase the efficiency of the quarry fans, as well as the reliability and durability of the device in operation by ensuring the stabilization of the operating mode of the heat generator, it is equipped with A fuel pump and drainage pipe connecting the regulator with the boom, the fuel supply controller being made in the form of a filter with temperature-sensitive filtering elements and a valve and installed in front of the nozzle 2. A filter comprising a housing with inlet and outlet nozzles and filtering elements which is concentrically located in the casing, which is based on the fact that, in order to increase its efficiency by ensuring the regulation of the output of the filtered liquid, depending on the temperature of the filtered liquid , the filter is equipped with a drainage pipe connected to the housing and a valve connected to the central filter element mounted to shut off the drain pipe, while the filter elements are made in the form of truncated cones of porous cermet material and are connected in series and along (L pair, elements each pair is made of materials with different c: thermal expansion coefficients. 3. The filter, comprising a housing with inlet and outlet nozzles and a filtering element, are inserted 00 in the form of porous metal poppet discs connected to each other, characterized in that, in order to improve its effi ciency by adjusting the output of the filtered fluid, depending on from the temperature of the filtered liquid, the filter is equipped with a drainage pipe connected to the housing, and a valve connected to the filter element and installed with the possibility of blocking the drain pipe at ohm each disc filter element configured Idvusloynym, wherein the disc layers are made of materials with different coefficients of thermal expansion.;

Description

11 The invention relates to the mining industry and can be used for ventilation of deep open-pit mines with the open-cast mining method, and filters used to regulate the heat exchange process and fuel filtration can be applied in other hydraulic systems, in particular, in fuel supply and heating systems. , in times: shchnk areas of industry. The purpose of the invention is to increase the effectiveness (efficiency of the quarry ventilation, also reliability and durability of the condition in the work by providing-) u: fi stabilizing the operating mode, heat of the alkali, increasing the efficiency of the filter by controlling the output of the filtered fluid, depending on the temperature of the filtered liquid, Pa figs. 1 shows a ddg ventilation device for quarries, general view; PA FIG. 2 is a sectional view of FIG. one; on (l) ur. 3 is a view B in FIG. 2j in FIG. 4 - gi.p, po1: a hem of the device for the valves C T11 of the quarries; in fig. 5 - filter, general view, the first option; on fig.bo, the second option; in fig. 7 oz. 1 in FIG. 6. The device for ventilation of quarries contains platform 1, boom 2 installed on platform, in the form of spatial tubular truss with inlet and outlet pipes, pump units 3 and 4, heat removers 5, c. from the heat exchanger (coil) 6, filter 7, drainage pipe 8 and forks 9, and pipelines 10 for fuel supply, i Heat separators 5 are located on boom 2, filter 7 is located in front of the nozzle 9, Drain pipe 8 is connected to boom 2 and with filter 7. I Filter 7 contains a housing 11 with an inlet 12 and an outlet1 (L1m 13 branch pipes, concentrated in it filter 5ite elements 14, valve 15 and drainage branch pipe 16. Filtered elements .14 are made in the form of truncated cones ( a-p). Of porous cermet and connected in series with the ends. 5 In each a pair of filter elements 14. (a-b, bc, etc.) one of the filter elements is made of a material with a coefficient of thermal linear expansion of one value, and the other is made of a material with a coefficient of thermal linear expansion of another value different from First, in this way, the cones of a material with the same thermal linear expansion coefficient alternate with the cones of a material with another identical thermal linear expansion coefficient. The executive body 15 is made in the form of a valve and is connected to the central filter element. The second version of the filter includes a housing 17 with an inlet 18 and an outlet 19 with nozzles, a filter element 20 made of porous metal-ceramic disks (a - p), a valve 21 connected to the filter disk. element and drainage pipe 22. Each lisk of the filter element 20 is made underlayer, the outer layer is made of porous metal-ceramic with one coefficient of thermal linear expansion, and the inner layer is of porous metal-ceramic with a coefficient of thermal linear expansion that differs from the upper lay The device works as follows. Fuel is fed along the boom 2, made in the form of a spatial tubular truss, to the heat gap 5. In the melter, the fuel enters the heat exchanger 6, where it is heated from the flame of the nozzle 9 under high pressure generated by the high pressure pump 4 to a temperature above the boiling point of the fuel at atmospheric pressure, then the heated fuel enters ft 7 and the temperature increases the fuel leaving the heat exchanger 6, the filter 7 limits the amount of heat supplied to the nozzle 9. As the fuel supply to the nozzle 9 decreases, the intensity of the combustion process decreases, resulting in and the fuel heated in the heat exchanger 6 falls; And vice versa, as the fuel temperature decreases, the filter 7 passes more fuel, the intensity

the combustion process increases, the amount of heat supplied to the heat exchanger increases, the heating temperature of the fuel in the heat exchanger 6 increases,

The filter works as follows.

The heated fuel enters the inlet 12 inlet of the housing 11 of the filter 7. Under the action of varying fuel temperature, the filter elements 14 lengthen or contract, moving the actuator 15, made in the form of a valve. The valve opens or closes the drain fitting of the housing 16 when moving 11 (closes when the temperature of the fuel decreases, opens when the temperature of the fuel increases).

In the second variant of the filter 7, the heated fuel enters the inlet 18 of the housing 17 of the filter 7, under the effect of varying temperature of the fuel, the surfaces of the porous cermet discs 20 change their shape (radius curvature) due to the fact that the materials of the layers are lengthened differently. When changing the temperature, tshapan 21 either closes the drainage pipe of the housing 22, or opens

1180525

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ipena arrow

1 Drainage from filters

 Drainage from V, lt

entrance

111Iff

Claims (3)

Ί. A device for ventilation of quarries, comprising an arrow mounted on the platform in the form of a spatial tubular truss with inlet and outlet nozzles, pumping units, pipelines for supplying fuel and heat absorbers placed on the arrow, made in the form of nozzles and heat exchangers located above the nozzles, characterized in that, in order to increase the efficiency of ventilation in quarries, as well as the reliability and durability of the device in operation by ensuring the stabilization of the mode of operation of the heat dissipator, it is equipped with fuel supply and drainage pipe connecting the regulator with the boom, while the fuel supply regulator is made in the form of a filter with heat-sensitive filter elements and a valve installed in front of the nozzle, 2. A filter comprising a housing with inlet and outlet nozzles and filter elements concentrically located in the housing, characterized in that, in order to increase its efficiency by controlling the output of the filtered liquid depending on the temperature of the filtered liquid, the filter is equipped with a drainage pipe connected to housing, and a valve connected to a central filter element mounted with the possibility of blocking the drainage pipe, while the filter elements are made in the form of a truncated cones made of porous cermet material and are connected in series and in pairs, the elements of each pair being made of materials with different thermal expansion coefficients; 3. A filter comprising a housing with inlet and outlet nozzles and a filter element made in the form of disk-shaped disks of porous metal interconnected, characterized in that, in order to increase its efficiency by providing control of the output of the filtered liquid depending on the temperature of the filtered liquids, the filter is equipped with a drain pipe connected to the housing and a valve connected to the filter element and installed with the possibility of blocking the drain pipe, each the disk of the filter element is made; two-layer, and the layers of the disk are made of materials with different coefficients of thermal expansion.