JPS6114293A - Production of solid fuel composed of rice hull-charred carbon - Google Patents

Abstract

PURPOSE:To obtain the titled solid fuel which develops little offensive odor, utilizes resources and does not cause itching of men with allergenic constitution, by mixing a rice hull-charred carbon, slaked lime and water, molding the mixture into a solid and drying the solid. CONSTITUTION:20kg of rice hull is charred and the resulting charred carbon is ground with a flour mill. 0.7-1.5kg of slaked lime is blended with 10kg of the charred carbon powder, and the mixture is kneaded with stirring while adding 3.5-4.0l of water. The resulting blend is put into a container made of iron (e.g. a bottomless container of 5cm in diameter and 8cm in depth) and pressed under a pressure of 50kg/cm<2> and the resulting solid is dried at 100 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing rice husk smoked charcoal solid fuel.

Conventionally, when using commercially available charcoal briquettes and small charcoal, there were the following drawbacks. In other words, (1) there is a distinctive odor associated with fossil fuels, and (2) people with allergies exhibit certain special symptoms. (3) Most of the main raw materials are imported materials and fossil fuels.

The objectives of the present invention are (1) to be able to alleviate unpleasant odors, and (2) to be able to provide good results for people who suffer from allergies and itchiness, although the number of experiments has been small. Regarding the main raw material, which is the problem in (3), it is plant-based and the goal is to achieve effective use of energy resources by reusing industrial waste.

The present invention provides a method for producing rice husk smoked charcoal solid fuel to eliminate the above three drawbacks.

The present invention will be explained below based on experimental examples.

The main raw material is burnt rice husks to make smoky charcoal, which is then pulverized using a flour mill. Slaked lime is added to this, water is added, the mixture is kneaded, then molded using a compression device, and then dried. The present invention is constituted by these steps.

Since the present invention is configured as described above, the working procedure for making rice husk smoky charcoal solid fuel is as follows: 20 kg of rice husks - grilled smoky charcoal → 10 kg of smoky charcoal powder = 0.7 to 1.5 kg of slaked lime
The process consists of mixing 35 to 4.0 liters of ice water, a stirrer, forming, drying, and one product.

First, smoky charcoal is made from 20 kg of rice husks using a rice husk burner (an appliance that has been used in rural areas). At this time, it is important not to use too much water when extinguishing the fire; if you add too much water, the flour milling ability will decrease. In this way, approximately 10 kg of smoky charcoal is made. Next, use a flour mill to turn the above material into smoky charcoal powder, which weighs approximately 10 kg. This and slaked lime 0.7
Blend ~1.5 kg and charge it into a stirring device, and add 3.5 kg of water to this.
．． Stir while adding 5 to 4.0 liters until uniform. The mixture kneaded in this way is placed in an iron container with a diameter of 5 CI11 and a depth of 8 cm (no bottom), and is shaped using a compression device by applying a pressure of approximately 50 kg per 1 cm, and then dried. conduct. To speed up drying, you can remove it from the container and dry it in a dryer. The drying temperature is 1
I also tried natural drying at around 00°C, and although there were differences in drying time, I was able to obtain a solid dry product of almost the same quality.

As a result, 215 solid dried products each having a diameter of 5 cm, a thickness of approximately 3.5 cm, and a weight of approximately 50 g were produced.

Also, from the same composition, a tube 5 cm in diameter and about 10 cm thick was made, and a total of 7 ventilation holes with a diameter of 9 mm were drilled, one in the center and six at 2.5 cm from the center. This is similar to charcoal briquettes, but from the standpoint of fuel efficiency, it was possible to make a high-quality solid substance.

Then, using this, the following experiment was conducted.

(1) When I put 9 pieces of the above dried product (approximately 50 g each) into a device and ignited it using a propane gas stove, light blue smoke and a slight smell came out, but the conventional product did not cause any discomfort. The ignition was completed in about 15 minutes, and there was no smoke or odor when the ignition was completed. When I tried using this for a charcoal kotatsu, the temperature did not drop from 7 a.m. to around 11 p.m.
(2) I also tried using it with a sunken kotatsu, but it could also be used in the same way as charcoal.

(3) As a result of using it by a person with common allergies, there was no pain.
5' He said that there was nothing wrong with his body.

'Also, I tried using briquettes with a charcoal briquetting device and found that they could be used in the same way.
Due to the small vents, the firepower was somewhat low. The shape of the solid material may be determined according to the intended use.

As described above, by using the present invention, rice husks, which are industrial waste, can be used as the main raw material for vegetable fuel by reducing the odor, and good results can be obtained even for people with allergies. Ta.

Claims (1)

[Claims] 10 kg of smoky charcoal powder made by grinding rice husk smoky charcoal into powder using a flour mill.
0.7 to 1.5 kg of slaked lime was mixed into the mixture, and the mixture was kneaded using a stirring device while adding 3.5 to 4.0 L of water. The mixture was solidified using a molding press, and then dried. A method for producing a rice husk smoked charcoal solid fuel, characterized in that it is used as a fuel by: