SU1204743A1 - Rack for simulating processing of airing in mine workings - Google Patents

Description

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The invention relates to methods of investigating the ventilation mainly in the mountainous area and can be used to study the processes of distribution and removal of harmful impurities formed during carrying out of explosive works in mining works

The goal, the invention, is to increase the accuracy of the simulated, and) p-processes of gas distribution in% 1,

In FIG. Figure 1 shows a bench for modeling the processes of aeration of mine workings, 5b, vi, c; Fig / 2 - site supply of a substance that simulates a blasted array; in fig. 3 - device for simulating an explosion; in fig. 4 shows a unit for simulating gas emission from a blasted array.

The proposed stand consists of heater 1, which serves to heat the tap water and is connected to a constant pressure tank 2. The constant pressure tank 2 serves to provide constant motion characteristics of the working medium and is connected through rotameters with cranes 3 and a mining treatment model 4 by drain tanks 5, rubber hoses 6, and a mining excavation model 4 is connected through rometers with valves 3 with drain tanks 5 The stand contains a device for simulating gas emission from a blasted massif, made of a tank 7 with a substance imitating a blasted mass, and tanks 8 s. A substance imitating gases released from a blasted mass.

Drain tanks 5 are designed for collecting and draining the spent working medium into the sewer system. Air conditioners 9 are used to create constant microclimatic parameters in the laboratory, measuring and recording equipment 0 is used to measure the quantitative values of the necessary parameters and to register them. The top face of the model of the mine clearing 11 is connected to the louvers 12, the lever 13 and the body of the container 7. A spring-loaded strip 14 is placed in the container 7, the Top cover 15 e {lies 7 on the springs 16 and is fixed by studs 17; The nuts 8 serve to fasten the top cover and create force on the sub-springs 047432

a strip 14, the value of which is recorded by a dynamometer 19, which is mounted on the upper column. Heater 20 and transducer 21 are placed in cylinder 22 under piston 23

with the rod 24 and the loading platform 25. The rod 24 has a cavity 26 for filling an impurity simulator under the piston 23. The cylinder 22 is connected

 O through adjustment valves 27 s

cavities 28 of the mechanism for releasing the impurity simulator by rubber hoses 6. The inner wall 29 is perforated with holes. Bottom

 5 models 30 are connected to metal tubes 31 with openings 32, Metal tubes 31 are connected through an adjusting valve 27 to a pressure tank 33 of the simulator harmful

20 impurities that is set to

tripod 34 with the ability to change the pressure of the imitator of harmful impurities.

The stand according to the invention operates as follows.

25 With the help of air conditioners 9, constant microclimatic parameters are created in the laboratory. Next, remove the upper cover of the tank 7 and the spring-loaded strip 14 with springs.

30 16. The required volume of a substance simulating a blasted array is placed in the housing 7 and the upper bolt, springs 16 and the spring-loaded bar 13 are assembled according to the design. Guy35 kami 18 set a predetermined amount of force on the spring-loaded bar 14, the value of which is removed from the dynamometer 19. With this, the blinds 12 are closed. Working environment, water, served

40 through a rubber hose 6 from the water supply to the heater 1, where the water is heated to a calculated temperature different from the air temperature in the laboratory. From heater 1

45 water is fed into the constant pressure tank 2, from where the rubber hoses 6 through rotameters with taps 3 are filled with a mining treatment model 4. Required water flow is installed 50 using rotameters with taps 3, Water is drained from the mining treatment model 4 into the drain tanks 5. Next, a simulator of harmful impurities through the rod 24 and the cavity 26 fills 55 the cylinder 22, while the adjustment valves 27 are closed. Using the heater 20, the impurity imitator is heated to a predetermined temperature31

Temperatures, the value of which is removed from the temperature converter 21 A load of a given weight is placed on the loading platform 25. Next, the pressure tank 33 is installed at the required height, the tripod 34 and the required volume of the impurity simulator is poured into it, while the adjusting valve 27 is closed.

Further work is carried out in the following sequence. The corresponding adjusting valve 27 is opened in the device for simulating an explosion, while the simulator of harmful impurities under the action of the load located on the loading platform 25 of the rod 24 and the piston 23 will move along the rubber hoses 6. through the adjusting valve 27 to the cavity 28 and then through the internal wall 29, perforated by holes, into the space of the mining excavation model 4. By

04743

the outflow of the given time is opened by the louvers 12 using the lever 13, while the substance imitating the exploded massif, under the action of the spring-loaded strip 14 and the springs 16, falls into the space of the mining excavation model 4 and captures the imitator of harmful impurities. Then open the adjustment valve. 27, with

10 this simulator of harmful impurities, under the action of hydrostatic pressure moves from the pressure tank 33 of the simulator of harmful impurities through rubber hoses 6 through the regulator (5 lining valve 27, metal tubes 31 and openings 32 into the space of the mining excavation model 4). using measuring and recording equipment 10.

The use of this implementation bench allows to increase the modeling accuracy by 30-50%.

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Compiled by L, Serova Editor M. Tovtin Tehred O. Vaptsshina Proofreader V.

Order 1073 Circulation 436 Subscription VNIIPI State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Fshal PPP Patent, Uzhgorod, st. Project, 4

Claims (1)

STAND FOR MODELING PROCESSES OF PROTECTION OF MINING OPERATIONS, containing a model of a mine working mine, connecting tubes, rotameters, flow controllers, temperature converters and an explosion simulation device, characterized in that, in order to improve the accuracy of modeling the gas distribution process in the production, the stand is equipped with a simulation device gas evolution from the blasted massif, made in. in the form of a container with a substance simulating an exploded mass secured to a model of production, and a container with a substance simulating gases emitted from an explosive mass connected to a model of production through a tube with a perforated 'section located' inside the model of production, while a container with a substance simulating detonated mass, has louvers with a lever for releasing the substance into the production model and a spring-loaded bar for regulating the speed of release.