RU133831U1 - EXPLOSIVES MOBILE INSTALLATION - Google Patents

Abstract

1. A mobile explosive production unit, including containers with continuous gravitational explosive mixers with loading funnels for feeding ammonium nitrate and nozzles for spraying liquid fuel, polymer soft small-tonnage containers - “big bags” for feeding ammonium nitrate and receiving manufactured explosives; a container with fuel tanks, pump columns with liquid fuel flow meters, flexible oil-resistant dispensing hoses with feed taps led to the loading funnels of flow gravity mixers of explosives; power supply, fire extinguishing, ventilation, process control systems, characterized in that it additionally contains one or two inclined spiral conveyors in a plastic pipe, a flexible supporting element - a rodless spiral inclined spiral conveyor, is fixed at one end in the port of the loading hopper of ammonium nitrate, and the outlet is ammonia saltpeter inclined spiral conveyor is located above the loading funnels of in-line gravity mixers; gravitational flow mixers of explosives with loading funnels for feeding ammonium nitrate and nozzles for spraying liquid fuel, soft polymer small containers for receiving explosives; fuel tanks, pump columns with liquid fuel flow meters, flexible oil-resistant dispensing hoses with feed taps are located in individual containers mounted to each other by side walls on a transport platform based on a vehicle�

Description

The utility model relates to installations for the production of explosives based on ammonium nitrate and liquid petroleum products and can be used in the mining industry for the manufacture of industrial explosives at blasting sites directly on the quarry.

The process for the production of ammonium nitrate explosives consists in mixing ammonium nitrate with liquid fuel, in particular diesel fuel.

Known modular installation and its modifications for the manufacture of explosives based on ammonium nitrate of various particle size distribution. They consist of two containers installed in two tiers in height. The containers are equipped with containers of ammonium nitrate, liquid fuel, equipment for mixing explosive components, receiving and packaging finished explosives. Depending on the technological scheme of production, drum or gravity mixers are used installed in the upper or lower container. Liquid fuel (measuring tanks, fuel tanks) can be placed both in the upper and lower containers; it is fed into the mixer through a flexible oil-resistant dispensing hose with taps through the fuel column. The lower container is divided by partitions with doorways to the reception department, office space and electrical equipment. In the receiving compartment is the site of reception and packaging of explosives. The containers are equipped with heating, fire extinguishing and ventilation systems, a hatch with a flight of stairs for communication between each other (1-4). The installation is characterized by a high level of industrial safety, improved sanitary and hygienic working conditions. The disadvantage of these installations is low productivity, a large amount of manual operations, the need to dismantle all equipment when moving the installation to another production site.

Known mixing and charging installation, including an explosive mixer, consisting of a loading funnel with a nozzle, mesh, shutter, rigidly connected to the mixing chamber containing a scattering cone, a pipe with nozzles located at different levels in height, and a liquid fuel supply unit, consisting from a liquid fuel tank mounted on a vehicle, connected by a piping system and a flexible oil-resistant hose placed on the drum, through a throttle and a flow meter with one or more mixtures explosives, and through an air reducer and shut-off valve with a vehicle receiver; or from a tank of liquid fuel installed on a vehicle, a pump operating from the vehicle’s hydraulic or electrical system, a flexible oil-resistant hose with a tap and a liquid fuel meter; an explosive mixer is located at the wellhead (5). The disadvantage of the installation is the cyclical nature of its operation, the frequency of switching and adjusting the dispensers of ammonium nitrate and liquid fuel during the transition from well to well, the complexity of the unit for supplying liquid fuel, the large length of the pipeline and flexible oil-resistant hoses for supplying liquid fuel to the explosive mixer, the lack of information about device for protecting ammonium nitrate from weathering.

The closest in technical essence and the achieved result is an installation for the production of explosives, including containers, the outer surfaces of which are treated with a liquid ceramic heat-insulating coating, installed in two tiers in height, communicating with each other by a flight of stairs, doorways equipped with power supply systems. heating, fire fighting, ventilation, process control. The upper container is divided into two technological departments. In one compartment are removable consumables filled with ammonium nitrate, ending at the bottom with an outlet pipe with a valve or ball valve, mounted above the necks of the loading funnels of an explosive mixer. In another compartment, a liquid fuel supply system is located, including fuel tanks, pump columns with liquid fuel flow meters, flexible oil-resistant dispensing hoses with feed valves discharged to an explosive mixer. The lower container is divided by partitions with doorways to the technological department, office space and electrical equipment. A mixer with a loading funnel and nozzles for spraying liquid fuel into an ammonium nitrate stream, soft small-tonnage containers for receiving the finished explosive are installed in the technological department. The supply or shut-off of the supply of ammonium nitrate and liquid fuel to the mixer is carried out simultaneously by a ball valve of a removable feed hopper of ammonium nitrate and a dispensing valve of liquid fuel (6). The technological process for the production of explosives in this installation is very laborious. The installation does not have mobility, because it is not self-propelled and for its movement it is necessary to dismantle the equipment located in it, loading and unloading operations and transportation to a new place of its installation are carried out by container ships using truck cranes.

The technical task of the utility model was the simplification and mechanization of the production of explosives, reducing the complexity, the ability to move the unit without dismantling the equipment.

The problem was solved by the creation of a mobile explosives production unit, including containers with gravity flow mixers of explosives with feed hoppers for feeding ammonium nitrate and nozzles for spraying liquid fuel, soft polymer small containers (big bags) for feeding ammonium nitrate and receiving manufactured explosives substances; a container with fuel tanks, pump columns with liquid fuel flow meters, flexible oil-resistant dispensing hoses with feed taps led to the loading funnels of flow gravity mixers of explosives; power supply system, fire extinguishing, ventilation, process control, which additionally contains one or two inclined spiral conveyors in a plastic pipe, a flexible supporting element (rodless spiral) of the inclined spiral conveyor is fixed at one end in the nozzle of the loading hopper of ammonium nitrate, and the outlet nozzle of ammonium nitrate spiral inclined the conveyor is located above the loading funnels of in-line gravity mixers; gravitational flow mixers of explosives with loading funnels for feeding ammonium nitrate and nozzles for spraying liquid fuel, soft polymer small containers for receiving explosives; fuel tanks, pump columns with liquid fuel flow meters, flexible oil-resistant dispensing hoses with feed valves are placed in individual containers mounted to each other by side walls on a transport platform based on an automobile semi-trailer, ammonium nitrate loading bins, in the nozzle of which one end of the flexible the bearing element of the inclined spiral conveyor, placed in the end parts of the transport platform of the car trailer; as a power supply system, it contains a diesel power station.

A mobile explosive production unit may contain one or two containers with in-line gravitational explosive mixers and one container with fuel tanks, one or two inclined spiral conveyors.

The essence of the utility model is illustrated in figures 1, 2.

Figure 1 - a mobile installation for the production of explosives containing two containers with in-line gravitational mixers of explosives and one container with fuel tanks, two inclined spiral conveyors, a diesel power station installed on the transport platform of an automobile semi-trailer:

a) a longitudinal section;

b) - side view in the working position;

c) - top view in working position.

Figure 2 - mobile installation for the production of explosives, containing one container with a continuous gravity mixer of explosives, with fuel tanks, one inclined spiral conveyor, diesel power station, installed on the transport platform of an automobile semi-trailer:

a) a longitudinal section;

b) - side view in the working position;

c) - top view in working position.

A distinctive feature of the inventive installation for the production of ammonium nitrate explosives is:

- a transport platform based on an automobile semi-trailer for placing containers with equipment for the production of explosives;

- diesel power station

- inclined spiral conveyor with a flexible supporting element.

A mobile explosives production unit (Fig. 1) contains a car semi-trailer with a low loader transport platform 1, placed horizontally on a planned quarry site due to the rear wheels 2 and the front support struts 3. An ammonium nitrate 4 feed hopper with a receiving funnel is installed in the end parts of the transport platform and diesel power station 21. The feed hopper of ammonium nitrate 4 in the lower part is connected to the pipe 5, in which one end of the rodless spiral 6 of the inclined sir is fixed conveyor 7. On the transport platform 1, two containers 8 are installed on the side walls, in which one in-line gravity mixer 9 is placed, with a feed funnel 10 with calibrated grids for receiving ammonium nitrate from the outlet pipe 12 of the inclined spiral conveyor and nozzles for spraying liquid fuel. Flow gravity mixers 9 are equipped with ball valves 11 for switching on / off the supply of liquid fuel and ammonium nitrate. Reception of the manufactured explosives is carried out in polymer soft small-tonnage containers (big bags) 13, mounted on the frame 14, mounted on pallets 15 under the corresponding in-line gravity mixers. The feed hopper of ammonium nitrate of the inclined spiral conveyor 7 is located in the end part of the semi-trailer.

In a separate container 16 on a pallet 17 there are fuel tanks 18 equipped with pump columns 19 with liquid fuel flow meters, flexible oil-resistant dispensing hoses 20 with feed valves. A container 16 with fuel tanks 18 is installed between two containers 8 with in-line gravity mixers 9

Ammonium nitrate is fed into the feed hopper 4 from a soft small-capacity container 22 using a forklift truck 23. Mounted on any vehicle 27. The fuel tank container is equipped with deflectors 24 for natural supply and exhaust ventilation. The containers are equipped with end swing gates 25, 26 directed towards the sides of the trailer.

Delivery of soft small containers and the export of soft small containers with explosives is done by a forklift truck through the swing gates 25. 28 - control panel.

A diesel power station 21 is also located at the end of the trailer platform, providing power to a mobile explosive production unit. The operation of electrical equipment, fuel pumps, electric motors of spiral conveyors, electric lighting, the operation of fire alarm systems is provided by a diesel power station 21.

Similarly to the prototype installation, the containers are equipped with a fire extinguishing system and an automatic burglar alarm. The automatic fire alarm system is designed for early fire detection and audible warning of people about a fire.

A mobile explosive production unit may contain one container for a continuous gravimetric mixer of explosives and fuel tanks, one inclined spiral conveyor, a diesel power station installed on the transport platform of an automobile semi-trailer (Fig. 2). In the end parts of the transport platform of the automobile semi-trailer, an ammonium nitrate consumable hopper 4 is installed, a nozzle 5 of which is connected to the end of the flexible supporting element (rodless spiral) 6 of the inclined spiral conveyor 7, and a diesel power station 21. Two fuel tanks 18 are installed in the container 16 on the pallet 17, pump columns 19 with liquid fuel flow meters; flexible oil-resistant dispensing hoses 20 with feed taps. The horizontal position of the low loader transport platform 1 at the quarry site is provided by the rear wheels 2 and the front support column 3.

The proposed installation for the production of explosives works as follows.

Installation work.

A soft small-tonnage container in a polymer shell 22 filled with ammonium nitrate by a forklift truck 23 is mounted above the loading funnel of an ammonium nitrate feed hopper 4. The shell of the soft container is cut with a knife and ammonium nitrate enters the feed hopper 4, the pipe 5 of which is connected to the end of a rodless spiral 6 in the plastic pipe of the inclined spiral conveyor 7. When the electric motor of the inclined spiral conveyor is turned on, the rodless spiral 6 starts to to touch. The estimated amount of ammonium nitrate through an inclined spiral conveyor through the outlet pipe 12 enters the feed hoppers 10 of the in-line gravity mixers 9, where the required amount of liquid fuel for processing ammonium nitrate is simultaneously supplied. The resulting explosive flows by gravity into the soft small-tonnage containers 13 until they are completely filled. Soft small-tonnage containers 13 with the finished explosive mounted on a pallet are removed from the containers 8 using a forklift truck.

The main technical result of the utility model is achieved due to the distinguishing features of a mobile explosives production plant:

- mechanization and automation of the technological process for the production of explosives is provided through the use of an inclined spiral conveyor;

- the mobility of the installation is ensured by placing containers with equipment for the production of explosives on the transport platform of an automobile semi-trailer, which allows transporting it to another site without dismantling the equipment;

- autonomous power supply due to its own diesel power station installed on the transport platform of the semi-trailer;

- reducing the complexity of labor; eliminating the heavy manual operations of manufacturing explosives by mechanically feeding ammonium nitrate with an inclined spiral conveyor, loading finished explosives into soft small containers of increased capacity by gravity, and removing soft small containers with explosives with forklifts.

At the proposed installation, the manufacture of explosives based on ammonium nitrate and liquid fuels was carried out. The productivity of the proposed installation in comparison with the installation of the prototype increases by 1.5 times, provides the release of up to 50 tons of explosives per shift. Dramatically reduced time and number of manual preparatory operations. The cost of blasting is reduced by 15-20%.

The installation is located in the working area of the quarry, which excludes the cost of transporting manufactured explosives from the warehouse of explosive materials to the place of blasting on public roads.

Information sources:

1 RF Patent No. 2373172.

2 RF Patent No. 2307818.

3 RF patent for utility model No. 96863.

4 RF patent for utility model No. 93881.

5 RF patent for utility model No. 98000

6 RF patent for utility model No. 123774

Claims (2)

1. A mobile explosive production unit, including containers with continuous gravitational explosive mixers with loading funnels for feeding ammonium nitrate and nozzles for spraying liquid fuel, polymer soft small-tonnage containers - “big bags” for feeding ammonium nitrate and receiving manufactured explosives; a container with fuel tanks, pump columns with liquid fuel flow meters, flexible oil-resistant dispensing hoses with feed taps led to the loading funnels of flow gravity mixers of explosives; power supply, fire extinguishing, ventilation, process control systems, characterized in that it additionally contains one or two inclined spiral conveyors in a plastic pipe, a flexible supporting element - a rodless spiral inclined spiral conveyor, is fixed at one end in the port of the loading hopper of ammonium nitrate, and the outlet is ammonia saltpeter inclined spiral conveyor is located above the loading funnels of in-line gravity mixers; gravitational flow mixers of explosives with loading funnels for feeding ammonium nitrate and nozzles for spraying liquid fuel, soft polymer small containers for receiving explosives; fuel tanks, pump columns with liquid fuel flow meters, flexible oil-resistant dispensing hoses with feed valves are placed in individual containers mounted to each other by side walls on a transport platform based on an automobile semi-trailer, ammonium nitrate loading bins, in the nozzle of which one end of the flexible the bearing element of the inclined spiral conveyor, placed in the end parts of the transport platform of the automobile semi-trailer; as a power supply system, it contains a diesel power station. 2. Installation according to claim 1, characterized in that it contains one or two containers with in-line gravitational explosive mixers, one container with fuel tanks.

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