Pneumatic concrete-placing machine

FIELD: mining industry.

SUBSTANCE: invention can be used for delivering concrete mix at fastening mine workings to place of concreting. Proposed pneumatic concrete-placing machine consists of vessel with charging and discharge holes, car, concrete line and pneumatic system. Pipe is located on bottom of vessel to supply compressed air from pneumatic system to zone of influence of discharge hole equipped with check valve, bottom of vessel being made inclined. Concrete line is furnished with ejecting device and manifold in form of elbow installed coaxially with ejecting device. Ejecting device is arranged on lower section of concrete line directly after discharge hole of vessel, and manifold is arranged after ejecting device. Part of concrete line after manifold is made flexible, corrugated, and ejecting device and manifold are installed with possibility of uncoupling.

EFFECT: improved efficiency of operation owing to prevention of formation of air locks in concrete line and accumulation of mix at bottom of vessel.

2 dwg

 

The invention relates to mining and can be used for feeding the concrete mix when attaching mines to the production of concrete work.

Known pneumopathology (see A.S. No. 853111, E 21 D 11/10), including driving a truck, a container for the components of the concrete mix, drive, auger and mesarovic, which is equipped with a rod with blades mounted next to the screw.

A disadvantage of the proposed pneumopathology is the formation of traffic jams when feeding the concrete mix to the production of concrete work.

Closest to the proposed technical solution is pneumatic concrete placing machine (see Y.S. Riflemen, EV Kazakevich, DI Ponomarenko. Mount workings of coal mines by naryzhneva. M.: Nedra, 1978, s-210, 34), consisting of a vessel with inlet and discharge openings, truck, beenapproved and pneumatic systems.

The disadvantage of this concrete placing machine is the formation of traffic jams in beenapproved and the accumulation of concrete mix on the bottom of the vessel.

Unified technical result is an increase in efficiency due to the elimination of traffic jams in beenapproved and elimination of stagnation concrete mixture on the bottom of the vessel.

Unified technical result is achieved by the fact that in the known pneumatic concrete machine, consisting of a vessel with a boot and p is scrutchin holes, truck, beenapproved and pneumatic system, the bottom of the vessel is made inclined, on the bottom of the vessel is placed a pipe for supplying compressed air from the pneumatic system in the zone of influence of the discharge aperture, equipped with check valve and beenapproved equipped with ejecting device and coaxially with it installed collector, made in the form of a knee, and ejecting device placed on the lower section of beenapproved directly behind the discharge vessel, and collector, respectively, for ejecting device, in this part of beenapproved for collector made of a flexible, corrugated, and ejecting device and the collector is installed with the possibility of their separation.

The perform of the bottom of the vessel inclined promotes more rapid extrusion of the mixture in beenapproved. Placing the pipe on the bottom of the vessel with a supply of compressed air in the zone of influence of the discharge aperture enables the creation of air lubrication on the bottom of the vessel before beenprovided and eliminates congestion. The supply pipe check valve eliminates the flow of the concrete mix into the tube when disconnecting the pneumatic system.

The presence of the ejecting device directly over the discharge vessel provides a uniform flow of concrete mix into the reservoir, and then in beenapproved. The presence of the call is ktora made in the form of knee for ejecting device allows you to adjust the portion of the filing of the concrete mix. Flexible corrugated portion of the lower section of beenapproved tensile ensures the safety of the further section of beenapproved under load.

Installation of the ejecting device and the collector with the possibility of their separation provides disassembly system "vessel-beenapproved" during transportation, protects from damage.

The proposed solution is illustrated by the drawings, which shows a pneumatic concrete placing machine hosted in mountain development: figure 1 - front view; figure 2 - side view.

Pneumatic concrete placing machine includes a vessel 1 provided on the carriage 2, beenapproved 3 and the pneumatic system consisting of the intake pipe 4 at the entrance to the vessel 1 and the intake pipe 5 at the entrance to the ejecting device 6. The bottom 7 of the vessel 1 is made inclined with a slope to the rear of the vessel 1 which contains the discharge hole 8, is supplied by a pipe 9 for supplying air in the concrete mixture 10, having at its outlet end of the valve 11.

Ejecting device 6 is placed directly over the discharge opening 8 of the vessel 1, it is made in the form of knee collector 12 attached to the ejecting device 6 with the possibility of separation. The collector 12 is connected with beenapproved 3, and the lower part 13 of beenapproved sled for the collector 12 is flexible, corrugated.

Pneumatic concrete placing machine operates as follows.

The vessel 1 concreting of the machine, mounted on the carriage 2, is filled with the concrete mixture 10 and is mounted on the track generation 14 with the help of the locomotive in the area for concreting works, for example, under the complex 15 (VDPU-TM). Includes pneumatic system. The compressed air supplied through the pipe 4 to the pipe 9 is placed on the inclined bottom 7 of the vessel 1, flows into a concrete mixture 10, and simultaneously starts the air flow through the pipeline 5 in ejecting device 6 located behind the discharge opening 8 of the vessel 1.

Under the influence of compressed air portion of the concrete mix, located between the discharge hole 8 and the output end of the pipe 9 enters the ejecting device 6, and then into the reservoir 12, beenapproved 3 and then it is transported to the venue of concrete work, for example, to the roof load-haul-generation, which has a complex 15 (VDPU-TM). To prevent the ingress of concrete mixture in the intake pipe 9, it is equipped with a valve 11.

We offer pneumatic concrete placing machine has been tested on mine OJSC "Sheregesh Deposit RU" on the mountains. + 255 m using the proposed concreting machine was concreted 1330 m dostatochno loading the workings, ensure the stable operation of loading units VGPU-TM.

Pneumatic concrete placing machine, consisting of a vessel with inlet and discharge openings, truck, beenapproved and pneumatic system, characterized in that the bottom of the vessel is made inclined, on the bottom of the vessel is placed a pipe for supplying compressed air from the pneumatic system in the zone of influence of the discharge aperture, equipped with check valve and beenapproved equipped with ejecting device and coaxially with it installed collector, made in the form of a knee, and ejecting device placed on the lower section of beenapproved directly behind the discharge vessel, and collector, respectively, for ejecting device, in this part of beenapproved for collector made of a flexible, corrugated, and ejecting device and the collector is installed with the possibility of their separation.



 

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FIELD: mining industry.

SUBSTANCE: invention can be used for delivering concrete mix at fastening mine workings to place of concreting. Proposed pneumatic concrete-placing machine consists of vessel with charging and discharge holes, car, concrete line and pneumatic system. Pipe is located on bottom of vessel to supply compressed air from pneumatic system to zone of influence of discharge hole equipped with check valve, bottom of vessel being made inclined. Concrete line is furnished with ejecting device and manifold in form of elbow installed coaxially with ejecting device. Ejecting device is arranged on lower section of concrete line directly after discharge hole of vessel, and manifold is arranged after ejecting device. Part of concrete line after manifold is made flexible, corrugated, and ejecting device and manifold are installed with possibility of uncoupling.

EFFECT: improved efficiency of operation owing to prevention of formation of air locks in concrete line and accumulation of mix at bottom of vessel.

2 dwg

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