SU929517A1 - Pneumatic transport charging and delivering installation for handling loose materials - Google Patents

Description

(54) PNEUMATIC TRANSPORT CHARGING AND DELIVERY INSTALLATION "KARATAU FOR BULK MATERIALS

one

The invention relates to the field of pneumatic transportation, namely to pneumatic transport charge-haul installations for bulk materials, which are used to prepare and charge explosives from the cord and borehole and can be used in the construction, food, chemical and other industries .

A well-known charge-haul installation, containing two hoppers for explosives and tampers, which are manually loaded, three dispensers with closures, several pneumatic actuators and high-pressure cylinders with gearboxes 1.

However, this installation is difficult to manufacture, which makes it unreliable in operation, and manual loading of the bins gives the installation low productivity and a low degree of mechanization.

A known pneumotransport charging unit for bulk materials contains a discharged container with a diaphragm, the subdiaphragmatic cavity of which is connected by a pipeline to a source of compressed air, and a receiving container with an ejector connected to the container being discharged by the suction pipe 2.

A disadvantage of the known installation is that it does not fully utilize the possibility of depression created by the ejector to increase the degree of mechanization of the technological process and the productivity of charging.

The purpose of the invention is to increase productivity.

The goal is achieved by the fact that the subdiaphragm cavity communicates with the ejector through a three-way valve installed on the pipeline connecting the subdiaphragm cavity with a source of compressed air.

The drawing shows schematically the proposed installation.

Claims (2)

The installation includes a receiving tank 1, which is hermetically made with an exhaust chute 2 to a valve 3 with an actuator 4, a dispenser 5 with a dispensing port 6 and a charging hose 7 through which the contents of the receiving tank 1 and the dispenser 5 are delivered with the aid of 20 compressed air to the destination. The receiving tank 1 is equipped with two nozzles 8 and 9, one of which 8 is connected to the suction pipe 10 and the feeder 11, and on the other 9 an ejector 12 is mounted, which serves to create a depression of the receiving tank 1, the suction pipe 10 and the feeder 11, through which emptying the unloading tank 13 from the contents through the outlet 14 and loading the receiving tank 1. The outlet 14 of the unloading tank 13 during transportation or storage of the contents in it is blocked by a gate 15. For transportability and the discharging tank 13 is mounted on the undercarriage 16. For supplying the liquid component to the transported material from the tank 13 in the process of loading the receiving tank with it, the unit 1 is equipped with a tank 17 connected to the nozzle 8 with a hose 18 through the calibrated orifice 19. To increase productivity and degree of mechanization The discharging tank 13 is equipped with a diaphragm 20, through which the propellant is supplied to the outlet port 14. created by the ejector 12. To this end, the nozzle 9 and the cavity enclosed between the walls of the unloading container 13 and the diaphragm 20 (subdiaphragmatic cavity) are interconnected by a hose 21 through a three-way valve 22. Compressed air is supplied to the crane 22 through the hose 23 from the compressed air line . Compressed air is supplied to the ejector through valve 24 and the hose 25. The installation operates as follows. The installation is delivered to the blasting site. After that, the feeder 11 connected to the nozzle 8 by the suction pipe 10 is inserted under the outlet 14 of the unloading container 13. When charging the prefabricated explosives or wells, the tank 17 is filled with water, and when charged with the igniter prepared by the unit during charging. diesel fuel. At the end of the preparatory work, the valve 24 and the spigot 15 are opened, while the compressed air from the hose 23 is fed into the ejector 12, and the contents of the discharging tank 13 through the outlet 14 by gravity flow into the feeder 11. When the compressed air of the ejector 12 passes, the latter creates a depression in the nozzle 9 and the receiving tank 1, due to which the contents of the unloading tank 13 and the feeder 11, through the suction pipe 10 and the sleeve 8 enters the receiving tank 1, from which explosives through the chute 2 and valve 3 by gravity flow into the dispenser 5 when filling SRI which (dispenser 5) 2 estrus valve 3 is closed and portions BB finds conductive with the dispenser 5 of compressed air via the pipe b and the charging hose 7 is delivered to the cavity being charged. After the dispenser 5 is empty, the valve 3 reopens the chute 2 and the whole process repeats. The operation of the ejector 12 and the filling of the receiving tank 1 is carried out continuously. The liquid component in the tank 17, due to the depression created by the ejector 12, enters through the hose 18 and the calibrated orifice 19 - into the socket 8, where it meets and displaces with the material loaded into the receiving tank 1. The total time for the full unloading of the tank 13 is with free air flow from the diaphragm 85-95 s, and with forced suction, due to the depression created by the ejector - 25-30 s. The implementation of the invention will allow the staff to free up to two people for each installation, i.e., increase the degree of mechanization by 60%, and increase the technical performance of the loaders from 26 kg / min to 45, and significantly improve the sanitary and hygienic labor conditions service personnel. Invention "Karatau for bulk materials" pneumatic conveying-delivery installation, containing a dischargeable capacity with a diaphragm, a subdiaphragm cavity of which is connected by a pipeline to a source of compressed air, and a receiving capacity with an ejector connected to the dischargeable capacity by the suction pipe, which in order to increase productivity, the subdiaphragmatic cavity communicates with the ejector through a three-way valve installed on the pipeline connecting the subdiaphragmatic cavity with Source of compressed air. Sources of information taken into account during the examination 1. G. Demidyuk and A. N. Bugaysky. Means of mechanization and technology of blasting operations using granulated explosives, M., Nedra, 1975, p. 104 2. USSR author's certificate in application number 2547593, cl. B 65 G 53/14, 1977.