JPS63139089A - Method and device for putting gunpowder into a gunpowder cylinder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention is characterized by its stickiness and poor shape stability.
It relates to the introduction of explosive material into a gunpowder cylinder, which must be handled in the "open" state, i.e. in a container or nl, without being closed.

More particularly, the invention relates to the charging of so-called emulsion slurries into powder cylinders. The emulsion slurry is characterized by containing a liquid phase in which oxidized salts are decomposed and diffused into a continuous hydrocarbon phase. A characteristic of the emulsion slurry is that it adheres to virtually all kinds of materials, including polyfluorinated polymeric hydrocarbons (such as Teflon).

In particular, the present invention relates to charging said emulsion slurry into a gunpowder cylinder at elevated temperatures at a temperature of about 100 DEG C., the usual temperature for fresh emulsion slurries. At this stage, the emulsion slurry is relatively fluid and easy to pump, but after the shear forces that kept it flowing through the pumps and tubes have ceased, the emulsion slurry remains at the high temperature mentioned above. Since it has a yield point, it has a certain degree of structural rigidity. However, once solidified to a certain extent, the shape stability becomes good at low temperatures.

BACKGROUND OF THE INVENTION Emulsion slurries have been placed into powder barrels in the form of "sausages." That is, the gunpowder material is pumped through an orifice and placed in a cylindrical plastic film formed by longitudinal welding 11 to the plastic film in the vicinity of said orifice, and then pleated in said "hose" by a suitable distance N1. At these crimped locations two sealing devices are installed, between which the "hose" is finally cut. This gunpowder charging method has the advantage of being continuous, and allows the manufacturing process to proceed linearly even when the gunpowder material is in a high temperature state. As such, the explosive material accumulates and cools, eliminating the need for any device to continuously cool the explosive material.

The "sausage"-shaped powder barrel has a characteristic rounded end with protruding sections of plastic material folded over one another. The Fire'J8 cylinder has shown to be disadvantageous for horizontal hole loading because it sticks during loading or because it can easily become wedged against the hole by adjacent powder cartridges.

Therefore, for use with horizontal holes, paper-wrapped powder cartridges are preferred since no wedging effect will occur during loading if the paper wrapper is neatly folded at the ends. The emulsion slurry can be made in a powder cartridge of the type by extruding the powder through an outlet tube located above the powder tube shell of the Its gunpowder shell, which is bent at one end. The method includes periodically interrupting the extrusion of the powder so that the filled cartridge can be replaced with an empty cartridge. However, this method is extremely problematic because it is difficult to make and handle a long powder barrel when it is empty, and it is difficult to completely fill it from the bottom.

Powder cartridge loading machines are commercially available that operate rapidly and reliably and have been found to be well suited for loading conventional gunpowder, such as guynamite, into long cartridges. The operating principle of one type of these machines is that the gunpowder is divided into slabs, i.e., a charge into a pre-cut gunpowder cylinder, and the charge is separated from a rolled sheet of gunpowder material of uniform thickness into said slab by a movable knife. After the slab is transferred to the powder tube wrapper, the machine then wraps said paper around the slab and finally cuts the end of the powder tube. Fold it. A machine of this type is sold by Niepman A/G of West Germany under the trade name "Rollex".

However, the introduction of the emulsion slurry into the gunpowder barrel in devices of the type described above also involves significant problems.

Even in cool conditions, which require either sufficient holding time or some type of specialized tarp, the explosive will not be able to absorb any parts of the equipment it comes into contact with, even if they are coated with Teflon or similar materials. Stick to parts. Particularly troublesome is the sticking of gunpowder to the knives that cut the slabs from the rolled powder, and to the parts of the machine that press these slabs from said knives onto the powder tube wrapper, on which the sticky material is deposited. Therefore, proper gunpowder loading cannot be achieved.

The above-mentioned troublesome situation becomes more serious as the temperature of the respective materials increases, and so far it has been found that the above-mentioned types of explosive materials can only be used if the gunpowder material essentially has said temperature as it comes out of the manufacturing process. Some devices have made it impossible to charge emulsion slurry into gunpowder barrels.

SUMMARY OF THE INVENTION It is an object of the invention to make it possible to charge particularly sticky gunpowder materials, such as emulsion slurries, with a charger device of the type described above.

More specifically, it is an object of the present invention to enable the emulsion slurry to be charged into the gunpowder barrel even at high temperatures by means of the above-mentioned device, thereby eliminating the need for cooling the slurry.

The present invention allows the emulsion slurry to be placed in a relatively long Mc-wound powder cartridge, and also allows existing gunpowder loading machines of this type to be used for the emulsion slurry, unlike conventional It means taking over the market from gunpowder.

(Means for Solving the Problems) According to the present invention, the portion of the gunpowder casing machine that comes into contact with the gunpowder is kept moist with water.

For the fabrication of the parts of the v3 machine, the invention also includes the selection of particularly suitable materials for the coating of the part as a whole, or if other materials are used in the construction of the part.

The present invention also includes an explosive casing machine having a device for moistening the surfaces of the machine parts of series II1 with water to a suitable degree and carrying out the method of the present invention.

Fact 1: Although emulsion slurries are generally sticky to all materials, it has been found that they surprisingly do not stick to wet surfaces to a great extent. At least depending on the type of material, it takes some time for it to become noticeably sticky to wet surfaces. Furthermore, it has been found that if the water-moistened material is porous and the pores are filled with water, then sticking is virtually eliminated. Under the trade name Vyon F (porous polyethylene), Volva Air Limited, Industrial Division (Porvain Lta+1ted, rndu
The emulsion slurry has been found to be virtually non-adhesive to porous plastic materials such as those produced by strialDiv, Inc., or to natural products such as balsa wood, if both are completely submerged in water. , the type of porous material does not seem to be important. Furthermore, it has been found that cellulose-like materials appear to be particularly suitable for keeping the water film precisely adhered to the surface, which prevents the sticking of emulsion slurries.

Primarily, among such cellulose-like materials, wood is considered a suitable structural material for certain functional parts of powder casing machines intended to handle emulsion slurries. Examples of other materials with physical properties corresponding to those of wood in the wet state include paper and cotton cloth, both of which come into contact with explosive materials, but are also useful as coatings for parts for which wood is not suitable. It is also appropriate. Balsa is porous and rich in hillose, and is a type of vine that is well used in various parts of machines that feed emulsion slurries into gunpowder barrels.

In general, the invention consists of a method of keeping parts of the gunpowder casing rock moist with water that come into contact with the gunpowder material; however, depending on the parts of the machine and whether or not they are movable, wetting by water is not possible. It is clear that this can be provided by various means. The means are also selected depending on the material with which the machine parts are treated or coated.

EXAMPLE In the figure, a powder material 2 is shown which is an emulsion slurry and is passed through a delivery orifice 1 onto a conveyor belt 11 and delivered to forming rollers 3 which produce a sheet 7 of powder material of uniform thickness. There is. Along the conveyor belt 11, from the orifice 1 to the roller 3, fixed guides 5 are arranged which define the width of the sheet 7 as it moves between them.

The horizontal frame 6, which normally guides the rolled sheet 7 of explosive material, is not very important when introducing the emulsion slurry into the fire, but the sheet 7 is used to some extent to avoid contact with the explosive material.
It is advantageous to retreat from On the surface of roller 3,
A scraper 10 is provided to keep the roller clean in case any gunpowder accidentally sticks to it.

At the end of the conveyor belt 11 there is located a knife 12 which, by its movement, cuts the powder sheet 7 into slabs 13 suitable for filling the powder cylinder. By means of the cradle 14 and the pusher 8, the slab 13 is passed to a rotary head 9, by which wrapping is carried out.

The choice of material for the conveyor belt 11 over which the explosive material is fed and advanced is not critical. Usually the belt is made of rubber and some degree of adhesion between the powder material and the belt is not critical to the casing process. However, if desired, the rubber belt may be coated with an I4 material which provides a good water-wetting surface to the explosive material, such as paper or cotton cloth.

Side frame 6, cradle 14° and end [1
The choice of material for the single chain member (not shown) is not critical. Said end m-chain member is located in the rotating head 9 and folds the paper at the end of the powder barrel. The nide frame 6 and the end closure member, which normally do not cause any problems during the gunpowder loading process, may be coated with a porous material or made of a porous material and moistened with water, if desired. can be kept.

A nozzle 4 is provided on the machine to distribute a finely divided jet of water from a pressurized water supply to the parts of the machine where it is necessary to maintain a wet surface. Roller 3, knife 12 and bushing 8 are examples of components where the amount of wetted surface is also important.

It has been found that the roller 3 with the scraper 10 as well as the knife 12 are suitably made of wood. The knife 12 is preferably made of plywood in order to achieve the necessary dimensional stability.

However, for certain other parts of the machine, it is generally necessary to choose materials that are significantly more porous than wood. In that case, it is preferable to provide water wetting by providing a porous material as a wall separating the explosive material from the water supply, so that water flows slowly through this porous wall towards the explosive material. . Such an arrangement is particularly advantageous for fixed guides 5 regulating the width of the sheet 7 of explosive material. In this arrangement, the water supply is conveniently connected to the channel system of the support material, and the water level should be maintained within said channel system at a slightly higher level than the top of the porous wall. A suitable porous material for the guide is Vyon F as mentioned above.

The part of the gunpowder charger that is clearly the most problematic with regard to gunpowder material adhesion is the butcher 8, which cuts the gunpowder filler 13 from a rolled sheet and cuts it from the knife 12 into the gunpowder roll. Transfer onto paper. Of the materials tested, water-moistened balsa was found to be the most satisfactory.

During operation of the machine, the mechanical parts that move after iyi may be wetted via a distribution channel, which is fed from a particular nozzle or through a hose from a water supply.

It has been found that by selecting the materials as described above, surprisingly little water is required to prevent adhesion. In practice, it has been found that the water supply to the nozzle and porous member should be regulated to eliminate any visible drainage from the machine. No significant increase in water content of the emulsion slurry was observed, which was only a few tenths of a percent.
It is not considered to be of any significance compared to the usual water content of 8-15 percent in the material. However, the total water intake is more than what the emulsion slurry absorbs. This is because various parts of the machine are maintained at four temperatures due to the heat ω of the emulsion slurry when it enters the rock where the gunpowder barrels are placed, and a certain amount of water evaporates from the related systems.

In the following examples, details are given to illustrate the invention, but these details are not intended to limit the scope of the invention in any way.

Example: In the "Rolex" gunpowder cartridge case supplied by Niebman Co., Ltd., the following original mechanical parts identified in Figure 61, namely the guide 5, roller 3, knife 12 and button 8, were made as follows: It was replaced with a tempered material.

The guide 5 was made of aluminum, provided with cutout channels, and coated with VyonF by gluing. Through said channel filtered water from the current water supply system is sent by m adjusted by a needle valve to keep the pores of the coating filled with water.

The roller 3 and the scraper as well as the knife 12 were made from waterproof plywood. Busha 8 was made from balsa.

All wooden parts were kept moist by a nozzle 4 that continuously supplied finely divided water.

To the gunpowder charger, as a continuous stream, the diffused brine solution is 85.4 percent by weight ratio, the hydrocarbon and emulsifier containing continuous phase is 4.5 percent by weight omega ratio,
The finely divided aluminum delivered 7 percent of polymerization and the hollow glass bulb delivered a 3 percent emulsion slurry.

The temperature of the gunpowder material is 95-100℃, and the delivery speed is 15 giro/
It was a minute. In this case, the machine has a diameter of 35 mm,
It produced approximately 35 gunpowder cylinders with a quality of 400 millimeters per minute. Production continued for several hours without any failure of the gunpowder cylinder and without wasting any gunpowder material.

It is different from the components mentioned in this example, and the concentration is hot. 41
The same modified method is applied to other emulsion slurries to be used.
I loaded it into the gunpowder cylinder with the "Rorex" machine without any problems.

[Brief explanation of the drawing]

The drawing is a schematic cross-sectional view of a Rolex IV modified for use in the method according to the invention. In the figure, 1... Orifice, 2... Explosive material, 3...
Roller, 5...Fixed guide, 6...Lead frame, 7...Seat, 8...Butsusha,
9...Rotating head, 1o...Scraper,
11...conveyor belt, 12...knife, 13...slab, 14...cradle.

Claims (7)

[Claims] (1) A method in which particularly sticky gunpowder material with poor shape stability, such as emulsion slurry, and which is in a particularly high temperature state is put into a gunpowder barrel using a gunpowder inserting machine, in which the gunpowder material is loaded with a movable knife. The rolled sheet of powder material having a uniform thickness is divided into slabs having approximately the shape of the finished powder cartridge by the machine, and the slabs are then wrapped by the machine around the powder cartridge slab and the ends of the powder cartridge are In the method of threading the powder cartridge until it is finally folded, the step is carried out in a powder cartridge inserting machine in which the surfaces of the parts of the machine with which the explosive material comes into contact are kept moist by water. A method of putting gunpowder material into a gunpowder cylinder. (2) A method according to claim 1, in which said water wetting is directed in finely divided jets of water towards a member of a gunpowder casing machine with which the gunpowder material comes into contact. A method for introducing explosive material into a powder cylinder, characterized in that it is provided by a nozzle. (3) A method according to claim 1, wherein the wetting is connected to one side of a porous wall such that water slowly passes through the wall and contacts the explosive material. A method of charging gunpowder material into a powder cylinder, characterized in that it is carried out with water from a source which is allowed to flow up to the side of the gunpowder. (4) Divide the explosive material into slabs by cutting with a movable knife from a rolled sheet of explosive material having a uniform thickness into slabs having approximately the shape of the finished powder barrel, and then said slabs become powder barrel-shaped slabs. In a machine for placing explosive material into a powder cartridge of the type which is caused to be wrapped by the machine around the material and finally folded at the end of the powder tube,
A machine for putting explosive material into a gunpowder barrel, characterized in that the surfaces of the parts of the gunpowder barrel filling machine that come into contact with the gunpowder material are kept moist with water. (5) In the machine according to claim 4, the parts of the gunpowder casing machine that come into contact with the gunpowder material are made of a material made of large-scale cellulose, such as wood, paper, or cotton. Explosive powder made of or coated with gunpowder, characterized in that the gunpowder casing machine is provided with a nozzle, from which a finely divided jet of water keeps the surface of the part moistened with water. A machine that puts wood into powder cylinders. (6) In the machine according to claim 4, the part of the gunpowder casing machine that comes into contact with the gunpowder material is made of a porous material forming a separation wall between the gunpowder material and the water source. A machine that puts gunpowder material into a gunpowder cylinder. (7) A machine according to claim 6, in which the porous material is balsa or porous plastic material, for feeding explosive material into a powder cylinder.