JPS6160120B2 - - Google Patents

Description

[Detailed description of the invention] INDUSTRIAL APPLICATION This invention is utilized in the field of solid fuel.

The present invention relates to a method for forming solid fuel.

Traditionally, solid fuels have been produced by heating and dissolving stearic acid soda soap in methanol and then cooling it. It is known from publications such as.

In addition, in the conventional molding method, the liquid product in the reaction vessel is transferred to, for example, an 18-liter can, cooled and solidified, and then cut into pieces, mainly by hand, into several pieces of a certain size. It is packed in tin cans and put on the market. In this case, it is cumbersome to wear gloves and protective clothing to avoid direct contact with the product, and labor costs are high.

Also, a considerable amount of loss occurs during cutting into pieces.

On the other hand, small cup containers such as aluminum foil filled with shredded solid fuel are also on the market. Not only is the packaging cost of tin can containers high, but if the container is used naked on the stove, the solid fuel residue will settle on the bottom of the stove, making cleaning difficult. Therefore, the aluminum cup container is disposed of while storing the residue as it is, and it is easy to dispose of and the packaging cost is low.

However, the conventional method for packing aluminum foil containers is to pour a high-temperature liquid into the product and wait for it to cool. In this case, the poisonous methanol component evaporates from the liquid, making the working environment worse. Also, during the injection process, the liquid overflows from the aluminum foil cup, resulting in a lot of loss. Furthermore, many cups are lined up and Injection work involves risks such as fire and is difficult to mass produce.

The object of the present invention is to forcibly cool the liquid product from the reaction vessel through a cylinder and extract the generated gas, so that conventionally the liquid product was directly handled manually, and the natural Solved the problem of gas generated by cooling,
An object of the present invention is to provide a method for forming solid fuel.

Therefore, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of the configuration of an apparatus to which an embodiment of the present invention is applied.

11 is an internal cylinder with piston 1 from one end.
2 reciprocates within its cylinder. Although its driving method is not shown, pneumatic pressure, hydraulic pressure, etc. are generally used. The internal cylinder 11 has hot water 1 on its outer circumferential surface.
8 intervenes to keep the temperature. The hot water 18 is passed through the sprue pipe 1 between the cylinder 11 and the case cylinder 13.
6 and discharged via an outlet pipe 17. In this way, the introduction pipe 14 with the valve 15 attached thereto is connected upright on the internal cylinder 11. 11' is the inner case,
It has a collar at its outer end and is screwably attached to a part of the inner circumferential wall of the cylinder 11. 20 is another internal cylinder with water 22 interposed on its outer circumferential surface, and the water 22 is poured between the cylinder 20 and the other case cylinder 21 via an injection pipe 23 and exits from a drain pipe 24. . Note that the internal cylinders 11 and 20 are provided with appropriate gas vent pipes (not shown) that communicate with the outside of the apparatus. Reference numeral 25 indicates a cutter provided at the tube end of the double cooling tubes 20 and 21. 26
2 shows the starting end of the rod-shaped cooled solidified material formed in the internal cooling cylinder 20, and 27 shows the thin pieces cut into strips of constant width by the cutter 25. 28 or less members indicate a wrapping device or the like. 2
8 is a cylinder, 28' is a pipe connected to the cylinder 28, and the cylinder 28 is provided with a cutout receiving part 29 having a substantially half-arc or V-shaped cross section, from which a piston 30 is reciprocated from one end. do. The drive is not shown, but general air pressure or the like is used. Reference numeral 31 denotes a cassette device made of aluminum foil, etc., which is made of a pipe, and has a support ring 31' fixed to a roughly half-arc-shaped cutout, inside which a circular aluminum foil sheet 32 or a cup-shaped molded foil 32' is placed. It is also supported in large numbers. 33 is ring 3
This is a suction tube installed at the opposite port of 1', and by sucking air from one end of the tube, aluminum foil 3 is installed at the other end.
2 or 32' is suctioned through the ring 31', moving the suction tube 33 and stopping the suction action, the wrapping material 32, 32' is placed between the cylinder 28 and the pipe 28' as shown in the figure. sent and positioned.

The introduction pipe 14 is connected to a reaction vessel containing a cooled solidified material such as solid fuel via a conduit (not shown) covered with a heat insulating material or the like. When the valve 15 is opened when the piston 12 is retracted as shown by the dotted line, the inlet pipe 14
The hot liquid fuel product is introduced into the internal cylinder 11 via the valve 15, and then the piston 12 is advanced to the solid line position when the valve 15 is closed, and these are repeated until the insulating double tube, in particular the internal cylinder 11 The product is then extruded to the other end via the inner case 11'. Since a cooling double pipe is connected continuously to this heat-insulating double pipe by a coupling 19, the high-temperature fluid is continuously transferred into the cooling internal cylinder 20 under the action of the piston 12. Since it is extruded, a rod-shaped molded product that is cooled and solidified is obtained from the end of the tube. Further, a cutter 25 prepared there is interlocked with the opening and closing of the valve 15 and the stroke d of the piston 12, so that pieces 27 having a constant width are obtained one by one. By dropping this piece 27 or moving it along an inclined plate (not shown),
After positioning this in the cutting receiving part 29 of the cylinder 28 and also positioning the packaging material 32 or 32' so as to face this, the piston 30 slides within both members 28, 28' from one end, thereby The strip 27 is neatly wrapped in aluminum foil and extruded from the end of the pipe 28' to form the product 3.
4 is obtained.

The rod-shaped molded product obtained by the present invention can be obtained by simply cutting it horizontally, without using cutters multiple times in three dimensions (vertical, horizontal, and depth) as in the conventional method. This allows you to save a lot of manual work.

Further, by making the cross-sectional shape of the interior case 11' and the cooling interior cylinder 20 into square timber or other shapes, elongated products having various external shapes can be obtained.

For example, solid fuel 34 packaged according to the invention
is shown in FIG. 2, and solid fuel 34' obtained by pouring it in a liquid state into a cup-shaped aluminum foil container and solidifying it is shown in FIG. With the conventional type 34', in order to prevent the liquid from overflowing when pouring it, and due to the evaporation of volatile components, the upper end surface of the solidified material descends to the dotted line, and the upper edge of the aluminum foil opening becomes inward. It bends in the opposite direction, blocking the upper exposed surface of the fuel (ignition port). In contrast, the product 34 according to the invention allows the packaging material 32 or 32' to be sized relative to the pieces 27, so that the failure of the container being too deep is not repeated. Rather, as shown in the figure, it is possible to intentionally wrap the food so that it is slightly exposed, and when this is used, the initial heat-generating area is wide, which is advantageous because the food can be cooked faster. Furthermore, regarding the conventional product 34', it is necessary to use one without pinholes, and it is also necessary to prepare a container strong enough to withstand the injection of liquid, so thick aluminum foil must be used. However, it has the disadvantage of increasing costs accordingly. In the present invention, aluminum foil that is thin enough to be folded along the contour of the soft solidified product can be used, and the difference in cost between the two is significant.

Further, according to the present invention, it is possible to continuously mold the solidified product and to wrap the solidified product in small pieces continuously with a packaging material one by one, and mass production is expected. For this purpose, piston 12, valve 1
5. The cutter 25, the suction tube 33, the supply of the pieces 27, and the piston 30 are controlled in a temporally interlocked manner.

As is well known, the liquid product from the reaction vessel is a sodium salt of fatty acid, mainly stearic acid, dissolved in hot alcohol.
For details, see 7 parts of industrial stearic acid in ethanol.
Add 90.8 parts and heat to dissolve. Separately, a solution prepared by dissolving 1.1 parts of caustic soda in 1.1 parts of water is gradually added to the hot methanol solution of stearic acid with stirring. What was obtained was sodium stearate dissolved in aqueous methanol.
In addition to methanol, alcohols such as ethanol and isopropanol can be used. Mixtures of these can also be used. Other fatty acids used include palmitic acid and myristic acid.

Such a liquid product is a liquid above a certain temperature, which is the gelling point, and gels into a solid below the gelling point. At temperatures near the gelling point, it is soft like tofu, but becomes harder as the temperature drops. Although the gel point varies depending on the composition and the mixing ratio thereof, it is preferably adjusted to 50 to 60°C. In the case of the above example, it solidifies around 54℃. This gelled and solidified material is used as solid fuel.

The gas components are methanol (alcohol) vapor and air. This gas is a problem when starting up the illustrated device. When the liquid product is guided from the reaction vessel to the apparatus, methanol vapor corresponding to the vapor pressure of methanol at that temperature is generated in the pipe connecting the reaction vessel and the apparatus, depending on the temperature of the liquid product. , occurs within the cylinder. When starting up the equipment, when sending the liquid product from the reaction vessel to the equipment, if you do not remove the air mixed with methanol vapor, the liquid product may not flow smoothly into the cylinder, or air agitation may occur inside the cylinder. There may be cases where the extruded dimensions are not stable. Once removed, the pipe
Since the cylinder is filled with liquid product, no problems occur.

The present invention has the unique effect that solid molded products can be mass-produced by taking out a liquid product in which fatty acid soda is dissolved in hot alcohol from a reaction vessel and cooling it forcefully or rapidly in a cylinder.

[Brief explanation of the drawing]

FIG. 1 is an explanatory view showing a series of devices for carrying out the method according to the present invention, FIG. 2 shows a wrapped molded product obtained according to the present invention, and FIG. 3 shows a conventional one. . 11 is a heat retention cylinder, 20 is a cooling cylinder, 12 and 30 are pistons, 25 is a cutter, 3
Reference numeral 1 indicates a cassette tool for the covering material, 28 a cylinder or bearing, and 28' a pipe.

Claims (1)

[Claims] 1. The liquid product from the reaction vessel is intermittently introduced into the cylinder and forcedly cooled, and the gas generated at this time is extracted to the outside to obtain a solid material from the pipe end of the cylinder.
Solid fuel forming method.