SU1506113A1 - Bench for simulating underground coal gasification process - Google Patents

Abstract

The invention relates to the mining industry, namely, to the underground gasification (H) of coal and can be used to study the process D. The purpose of the invention is to increase the intensity of the process D by studying the influence of the posonal water inflow on it. The heat-insulated body 1 is filled with coal 3 pre-crushed to 5-10 mm to form a coal seam (UE), and the body 1 is set at an angle of 40-45 ° using a lifting device 2. Kindle ignition device 8 is ignited, then process G is performed using For example, air blowing. Air is supplied by a compressor 6, air consumption is measured by a flow meter 7. At G, the reaction zone is moved along the length of housing 1, the temperature is constantly measured by thermocouples along the length of the UE, and periodically gas samples are taken through the nozzles (P). The water supply to the UE is perforated and the flow rate is measured by a counter 15. This achieves a zone modeling of the effect of groundwater on the process G. Placement P inside the perforated P provides better quality studies of the poston flow of the process G, because cooling the hot gas flowing into the furnace is achieved by stabilizing its composition, which is analyzed by a gas analyzer 13. The quality of the gas leaving the stand through the pallet 5 of the target gas is determined by a caloriograph 18. 1 Cpfl s, 2 ill.

Description

15, This achieves a zonal modeling of the influence of groundwater on the course of the process G. The placement of P inside the perforated P provides for better research of the post-flow process G, since due to the sharp

the cooling of the hot gas entering the P is achieved by stabilizing its composition, which is analyzed by a gas analyzer 13. The quality of the exit of the neck from the stand through the pallet 5 of the target gas is determined by a cadiograph 18. 1 3.P. f-ly, 2 ill.

The invention relates to the mining industry, namely the underground gasification of coal seams, and can be used to study the gasification process.

The purpose of the invention is to increase the informativity of the gasification process. Due to the study of the effect of posonal water influx on it

FIG. 1 shows the general layout of the stand; in fig. 2 — node I in FIG. one .

The stand contains a separable body forming a heat-insulated body with a lifting device 2, carbon-containing medium (coal) 3, grate 4, closed with a pallet 5, compressor 6, flow meter 7, ignition device 8, gas discharge pipes 9 installed inside the perforated pipes 10 water supply to the model, temperature sensors (thermocouples), a recorder 12, a gas analyzer 13, a water tank 14, a meter 15, valves 16 for adjusting the water and air supply, cooling and cleaning system 17, and a calorograph 18

The stand works in the following way.

A thermally insulated housing 1 with an outer diameter of, for example, 0.575 internal 0.25 m and a length of 3.0 m is filled with coal 3 previously crushed to 5-10 mm to form a coal seam, and the housing is set at an angle of 40-45 ° using a lifting device 2. The formation of the reaction zone with a length of about 0.5 s with a temperature of 1000-1200 ° C is carried out using an ignition device B, for example, a gas-air burner, after which it is turned off and the gasification process is carried out using, for example, air blowing.

Air is supplied by compressor 6, and its flow rate is measured by a flow meter 7,

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During coal gasification, the reaction zone is moved along the length of housing 1, the temperature along the formation being continuously measured during the process by means of thermocouples 11, and gas is periodically sampled from time to time through nozzles 9. The sampled gas is directed to the gas analyzer 13.

The water supply to the coal seam is made through perforated pipes 10, and the water flow is measured by a meter 15. This achieves a zone-by-zone simulation of the effect of groundwater on the gasification process. The placement of nozzles 9 for sampling the generator gas inside the perforated nozzles 10 provides for better studies of the poston process of the underground gasification of coal, since by rapidly cooling the hot gas entering the nozzles 9, it is stabilized by the gas analyzer (chromatograph) 13. Quality output from the stand through the pallet 5 and the system 17 for cooling and purification of the target gas is determined by a calorograf 18 o

Claims (2)

1. Stand for modeling the underground coal gasification process, including a heat-insulated body, a carbon-containing medium with thermal zones, an ignition device, a means of supplying water to the gasification zone, branch pipes for sampling the resulting gases, thermocouples for measuring the temperature in the gasification zone, that, in order to increase the informativity of the gasification process by studying the influence of the positon water inflow, The shape of a perforated pipe that is placed in each of the thermal zones, gas connections are installed coaxially inside the perforated pipes, and temperature sensors are located inside the pipes for gas extraction. fffj I Editor And, Shmakov Compiled by M. Gagulin Tehred M. Didyk Proofreader V. Kabatsy Order 5404 / FOR Circulation 449 VNIIPI State Committee for Inventions and Discoveries at 1 CIT The USSR 113035, Moscow, Z-ZZ, Raushsk nab. 4/5 13 2. Stents according to Clause I., of which is h with the fact that the perforation pipe and the pipe have established the possibility of taking a measure (its perso-juridical part inside the carbon-containing medium for a distance equal to heat meter insulated casing. C and G. 2 Subscription