SU660902A1 - Unit for investigating the process of hydraulic transportation of solid materials - Google Patents

Description

The invention relates to the field of hydrotransport of solid materials, namely, installations for the study of the process of hydrotransporting these materials.

Installations are known for investigating the process of hydrotransporting solid materials, containing interconnected pump for transporting liquid, a hopper for forming a slurry from the solid material to be transhurted and transporting liquid, and a material separator from the liquid, having a non-city with openings 1 |

The known installation cannot provide reliable data regarding the grinding of solid materials transported by a stream of water, as it contains pet. means for reliably separating solid materials from the transporting fluid and this. particles of solid material in the case of multiple simulations of the closed pipeline route of the experimental setup (to imitate the real route) repeatedly pass through the pump, which distorts the true picture

chopping tg) -, material in real conditions.

Get reliable dachn important on thiom and true value. since .l eni1e MHiiriiK TBCp.i, t-ix: the materials transported are hydraulic. way pedopustg; mo.

The purpose of the invention is to improve the reliability of studies of food, (1) () vanity, and the grindability of solid material (P when they are hydraulically transported and u.

Claims (2)

This goal is achieved due to the fact that the partition with holes is located inside the buixra G1er1 epedica; | RNS} of its r.pertpkal1 {oi oeii, section of its cavity in the upper and pizhnyaya parts, .eNi under the vi (1 quick hole; an ejector installed in the bunker, whose chamber is connected to 4acTi; KJ bchnker. nozzle ecuct1) and connected; With the lugor pipe, the pipe is connected to the lower part of the bunker through the center of the pipeline connected to one of the holes of the partition from the upper part of the bunker, which is in turn connected to the suction port, and to each of the remaining openings of the partition from the upper part of the bunker are tightly connected vertical tubes, the upper end of each of which is gently bent down. In addition, in order to increase the efficiency of separating solid material from the transporting liquid, the vertical tubes have a height not exceeding the height of the filling of the hopper with liquid. The described installation is shown schematically in the drawing. The installation comprises interconnected pump 1 for supplying a transporting liquid, a hopper 2 for forming a slurry, from a solid material to be transported, and a transporting liquid, and a separator 3 of solid material from the liquid. The separator 3 has a baffle 4 with openings, which is installed inside the hopper 2 and divides its cavity into two parts: the upper 5 and the lower bladder. An ejector 7 is installed under the outlet of the hopper 2. The suction chamber 8 of the ejector 7 communicates with the lower 6 part of the bunker 2, and the nozzle 9 of the ejector 7 communicates with the discharge pipe 10 of the pump 1. The turbine 11 of the ejector 7 communicates with the lower 6 part of the bunker 2 through the pipeline 12, which is connected to the lake from the openings of the partition 4 from the top 5 of the bunker 2. Each of the remaining partitions -1 -1 on the sides 1 1 of the upper 5 of the bunker 2 is sealed vertical tubes 13, the upper coke.c which is smoothly bent out h. The upper 5 part of the hopper 2 communicates with the suction pipe 1-4 of the pump 1. A valve 15 is installed on the discharge pipe 10 of the pump 1, which is designed to regulate the operating modes of the utanovka. Works indestand.ma installation as follows. The entire system is filled with clean water and the pump 1 is turned on, at which point the valve 15 is opened on its inlet pipe 10. A water jet emerges at high speed from the nozzle 9 of the ejector 7 into chamber 8, in which a reduced pressure zone is created, and as a result from the lower 6 part of the hopper 2 it is sucked into the chamber 8. Then, through the outlet 11 of the ejector 7, water is supplied to the pipeline 12. Thereafter, through the loading nozzle 16 connected to the pipeline 12, the solid material is loaded into the lower part of the hopper 2 see about t what concentration of slurry must be obtained. Further, since the transported material has a specific gravity, usually much more than the specific gravity of water, the particles are entrained by the ejector into the discharge pipe 12. The mute water with a reasonable rate (through the tubes 13 enters the upper part of the hopper 2, while it is subjected to final purification. For full guarantee of final purification of turbid water (water with the smallest fractions of transported solid material) requires that the height of the tubes 13 does not exceed the liquid level in the upper 5 parts of the bunker 2. Even if The amount of these fractions will drop into the upper part of the hopper 2, they will settle in this part of the non-subregion, but will not enter the suction inlet 14 of pump 1. When solid material enters through the nozzle 16 into the lower part of the hopper, the hydraulic mixture is drawn in, which is sucked the ejector 7 into the chamber 8 and further along the pipeline 12 under the partition 4 into the lower 6 part of the hopper 2, etc. Thus, due to the vacuum created in the suction chamber 8 communicated with the lower 6 part of the bunker 2, the flow of hydrospaces is prevented s (solid material) through pipes 13 to the upper part 5 of the bunker 2, and hence to pump 1, the suction inlet of which 14 is connected to this (upper) part of the bunker 2. In addition, the pressure of the water column located in top 5 hopper parts 2. Thus, the design of the on-site installation allows obtaining reliable data on the grindability of solid materials during their hydraulic m transportation over long distances, since it eliminates noddedness, which is connected with the possibility of their repeated passage through the pump, and as a result, pump wear is eliminated. Claims An installation for investigating the process of hydraulically transporting solid materials comprising interconnected a pump for supplying a carrier fluid, a hopper for forming a slurry from a bed 1, which transports solid material and a carrier fluid and separates the material from the fluid and has a wall with holes, characterized in that, in order to increase the reliability of the study of the grindability of solid materials during their hydraulic transport, the partition and apertured arranged horizontally inside the hopper, it nolost section into upper and lower parts, nriche .m below the outlet opening of the hopper uetanovlen ejector suction chamber which communicates with the bottom of the hopper, the ejector nozzle is communicated with the pump discharge nozzle and outlet spout the ejector is communicated with the lower part of the bunker through a pipeline connected to one of the perforations of the partition from the side of the upper part of the bunker, which is in turn connected to the suction inlet pipe of the neos, with each of the other openings of the partition the upper part of the 1st | P; etich 1o along the vertical lines of the rpyoiui. i pxium K.) iu4i,,; n from К () from | н г i ;; . Sources of information, iointy but Uiiiimapis iri exeerttle . Copyright certificate (LSR L 185758. CL. 13 65 G 53/30. 1965.