JPS59152978A - Preparation of granular snow-melting agent containing carbon black - Google Patents

Abstract

PURPOSE:To obtain a snow-melting agent making handling in bagging and scattering operations easy, absorbing sunlight in the deep part of snow, raising melting effect on snow, by blending powder or granules with carbon black, adding an organic substance-containing additive to the blend, granulating and molding the blend, followed by drying it. CONSTITUTION:Powder or granules (preferably calcium carbonate fertilizer, combined fertilizer, or organic fertilizer) are blended with carbon black, the blend is mixed with an organic substance-containing additive (preferably concentrated waste liquor of Stephen's reaction, concentrated waste liquor of alcohol fermentation, or solution of lignin sulfonate), granulated, and molded, to give the desired granular snow-melting agent.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a granular snow melting agent containing a water-soluble carton black.

In areas with snowfall, back work can be started after the snow melts in the spring, but in the northern regions, work is much slower. Therefore, snow melting agents are used to make up for the delay in starting agricultural work as quickly as possible. The effectiveness of this snow-melting agent has already been proven at the Agricultural Experiment Station and Shinkyo 1shi1'@.

Conventionally, Hiki Shinwa 1111 is made of fly ash, IL
i, charcoal powder, pyroelectric powder, carbon black, calcium carbonate fertilizer with carbon black, etc. are added to l + 4, but since all of these are 3 meters and 1 shaku, it is 1 (before spraying, its It'<It is treated as an inner cone.

After the snow melting season, the snow melting agent is on the snow and absorbs sunlight and screens the snow temperature on the surface of the snow, creating a fR night effect, but if it is simply scattered on the snow, it will not be effective. 11 The snow agent descends into the snow and increases the internal temperature of the snow, further improving its effectiveness.

However, the conventional snow melting agent mentioned above is in powder form, and the ratio of the powdered snow melting agent is
Rivers are also small, such as carbon black JW, which has a hanging specific gravity of about 0.03, and contains a lot of oily carbon, fl/η, which does not stain with water, so it is difficult to get into the snow.

The present invention was developed in view of the above-mentioned circumstances, and an object of the present invention is to provide a complete method for producing a granular snow melting agent containing carbon black, which eliminates the drawbacks of conventional snow melting agents, is easy to handle, and has a further improved snow melting effect. That is the purpose.

In the present invention, first, carbon black is mixed with powder, then an additive containing an organic substance is added thereto, the mixture is temporarily granulated, and then this is dried.

The pressure at the time of mixing is not particularly limited, and sufficient mixing may be performed using a conventional mixer, and general public means for granulation and drying are sufficient.

The thus obtained granular snow melting agent containing carbon black is
It has the same strength as conventional granulated products, making it easier to handle during bagging and spraying operations, and after spraying, it becomes a hygroscopic organic material.
Carbon black is dissolved and penetrated into water through the additives it contains, and because of its high specific gravity, it enters and descends into the snow, absorbs sunlight even into the snow, and brings its energy to the snow melting effect. It was decided to raise it further.

Some examples of the present invention will be shown below, but only as powder or granular materials. l! We use calcium carbonate fertilizer, which is used as fertilizer after it snows. So, calcium carbonate fertilizer is lime fertilizer based on the Fertilizer Control Law, but in addition to other fertilizers containing lime and sheep industry sub-products containing lime, is it based on the Fertilizer Control Law? I vote for Sugo fertilizer and the same law; it has the same effect as FF organic fertilizer. The black calf pin is in historical F general tone: I! 4, which is produced in E and is commercially available, is used for Iφ.

Furthermore, in the following examples, as an additive containing organic matter, Steffen wastewater from a sugar beet factory using the Steffen method is referred to as O8F under mMpCLl. ), alcoholic fermentation wastewater #condensate (hereinafter referred to as 00DS) from alcoholic factories, and lignin sulfonic acid-based bath solutions from paper mills, all of which have a water content of 20
~80% can be used, but it is also possible to use waste liquids containing other organic substances having a viscosity comparable to that of the above-mentioned examples. The ingredients and viscosity of the additives containing organic substances are as shown in Table 1 below.

Table 1 11 Ash content j14.88' 10.
73 1 4.33 Example 1゜Calcium carbonate fertilizer 9.25kF with carbon black o
, and mix in an osol mill.

0.7 kf of 08F with a moisture content of 50% is added to the mixed calcium carbonate containing carbon black, and kneaded for 5 to 7 minutes using a noddle mixer. The kneaded O8F' carbon black-containing calcium carbonate is charged into a transfer type granulator.

By drying the O S Ii' carbon black-containing calcium carbonate which has been rotary granulated for about 6 minutes using a rolling type granulator and then drying it for about 5 minutes using a rolling dryer, a granular calcium carbonate fertilizer containing Carzen Black is obtained. It was done. This product was used as prototype 1 and was tested.

Example 2 '#: Calcium carbonate fertilizer 9. by the same method as Example 1.
25 paste was mixed with carden black o and oskpe, and 0OD80.7 kF with about 50% water content was added, and the product was obtained through each step of mixing, granulation, and drying.

The shape of this product was exactly the same as in Example 1, and it was used as a prototype 2 for testing.

Example 3 Calcium carbonate fertilizer 9.25% by the same method as Example 1
A product was obtained by mixing 0.05 kf of carbon black per kg, cooling 7 kr of lignin sulfonate solution having a water content of about 50%, and going through the steps of kneading, granulation, and drying. The shape of this product was exactly the same as in Example 1, and it was used as a prototype 3 for testing.

Test results 1゜Prototypes 1.2 and 3 obtained in Examples 1, 2 and 3 were compared with products obtained by the conventional method (indicated as "conventional products"), and the following results were obtained after spraying snow melting agent. Figure 1 shows the test results regarding the change in remaining snow depth. However, the conventional product was obtained by the following method and was also used in the test. The play was held at VC in the Kitami region of Hokkaido between March 19, 1980 and April 9 of the same year.

Calcium carbonate fertilizer 9.95% and carbon black sail 05kv were added and mixed in a sol mill to obtain calcium carbonate fertilizer containing casen black.

In addition, a mixer such as a general Gatsukudol mixer is sometimes used.

[Brief explanation of drawings]

FIG. 1 is a graph showing test result 1.

Claims (1)

[Scope of Claims] (1) Mixing carbon black with powder and granules, then adding and mixing an additive containing an organic substance thereto, and then granulating the mixture,
A method for producing a granular snow melting agent containing carbon black, which further dries the snow melt. (2) The method for producing a granular snow melting agent containing carbon black according to claim (1), wherein the powder or granular material is a calcareous fertilizer. (3) Method 1 for producing a granular snow melting agent containing carbon black according to claim (2), characterized in that it is a calcareous fertilizer-derived calcium carbonate fertilizer (4) The granular material is a mixed fertilizer. Featured features
) A method for producing a granular snow melting agent containing carbon black as described in item 2. (5) A method for producing a granular snow melting agent containing carbon black as set forth in claim (1) Ffe, wherein the granular material is an organic fertilizer. (6) The method for producing a granular snow melting agent containing Carzen black as set forth in claim (1), wherein the additive containing organic matter is a Steffen wastewater concentrate. (7) Additives containing organic matter should be sent to the alcohol fermentation wastewater production department.'4! Claim No. 1 (1)
) A method for producing a granular snow melting agent containing a carton black. (8) The method for producing a granular snow melting agent containing casen black according to claim (1), wherein the additive containing an organic substance is a ligninsphorinate solution.