JP6561022B2 - Anti-slip material for barns - Google Patents

Description

  The present invention relates to an anti-slip material that is applied to a barn such as a barn and is sprayed on a barn entrance, a passage or the like to prevent an accident in which the cow falls due to slipping.

Once a large animal such as a cow causes a fall accident, it causes serious symptoms such as crotch cracking and seriously damages livestock.
Therefore, conventionally, an anti-slip material for preventing such overturning has been provided in the passage of such a barn, etc., but the contents are mainly provided secondary to the production of lightweight foamed concrete. The main component is concrete powder (hereinafter referred to as ALC powder).
However, since a) ALC powder does not have a disinfecting effect, a disinfectant is generally added to supplement the ALC powder. However, these may cause adverse effects such as inflammation on the teats and hoofs of cattle. b) Since the ALC powder is a lightweight body with a small specific gravity, it is easily blown by the wind, and the powder flies throughout the barn, which may cause harm to cattle and the like. c) Further, the anti-slip function is not satisfactory, and there is a problem that slipping may be caused when there is a lot of moisture.
Conventionally, there are an example in which clinker ash is used for a ground compaction method (Patent Document 1), an example in which a clinker ash is used for a method for regenerating cultured soil (Patent Document 2), and all of them are non-slip materials. It was not used for
JP2015-209710A JP 2006-271222 A

  The present invention has been made in view of the above circumstances, and has a non-slip effect on the animal and also has a disinfecting / deodorizing effect. It is intended to provide a non-slip material.

  In order to solve the above-mentioned problems, the anti-slip material for livestock barn according to claim 1 comprises 50 parts of clinker ash having a particle diameter of 3 mm or less and 50 parts of clinker ash with respect to 100 parts by mass in total. It is characterized by mixing 35 to 50 parts by mass of ~ 65 parts by mass and dolomite hydroxide.

  The anti-slip material for barns according to claim 2 has a particle size of 1 mm with respect to the anti-slip material according to claim 1 with respect to a total of 100 parts by mass of clinker ash powder particles having a particle size of 3 mm or less and fine dolomite hydroxide powder. 30 parts by mass or less of the following Kanuma soil and / or Akadama soil are added.

Clinker ash with gravel and sand has sufficient hardness as an anti-slip material, but it also has flexibility by avoiding excessive hardness due to the presence of porous voids. That is, the particle shape is complicated and excellent in compaction, and the anti-slipping effect is excellent due to the large friction coefficient due to the rib effect of the shape. By making the particles 3 mm or less in diameter, it is possible to avoid inflammation by entering the hoof.
The presence of dolomite hydroxide acts as a strong alkali and exhibits a disinfecting and deodorizing effect due to a bactericidal action.
When the clinker ash powder and the fine hydroxide dolomite powder are mixed with 50 to 65 parts by mass and 35 to 50 parts by mass with respect to 100 parts by mass in total, an excellent anti-slip effect is exhibited. At the same time, a satisfactory disinfection / deodorization effect can be obtained.
When waste after use is sprayed on pasture, etc., it will prevent mudiness and disinfect as it is due to water absorption and sterilization.
Addition of Kanuma soil and Akadama soil within a range of 30 parts by mass or less can enhance the economic effect while maintaining the anti-slip effect.

It is a graph which shows the change of the number of general viable bacteria in the test 2 based on this invention product. It is a graph which shows the change of E. coli group number in Test 2 based on the product of the present invention. It is a graph which shows the bactericidal rate of the number of general viable bacteria in Test 2 based on the product of the present invention. It is a graph which shows the bactericidal rate of the coliform group number in Test 2 based on this invention goods. It is a graph which shows the pH value in the test 2 based on this invention product.

  The anti-slip material for the barn of the present invention comprises 50 to 65 parts by mass of clinker ash and 35 to 35 parts of dolomite hydroxide with respect to a total of 100 parts by mass of clinker ash powder particles having a particle diameter of 3 mm or less. 50 parts by mass are mixed.

The clinker ash is a pulverized coal ash that has fallen into the water tank at the bottom of the boiler in a red hot state when coal is burned, and is adjusted in particle size.
Its components are mainly composed of silica (SiO ₂ ) (40 to 75 wt%) and alumina (Al ₂ O ₃ ) (15 to 35 wt%). Become. Because it is rapidly cooled from the red heat state and washed with water, it has a chemically stable property.
Physically, it comprises about 28 to 56% gravel and 36 to 83% sand. In the electron microscope, a pore having a diameter of about 0.2 to 20 μm and a large number of 0.148 cm 2 per crumb is formed.
In addition, clinker ash has excellent properties in terms of crushability, compaction, friction, and the like, as will be described later. Moreover, the porosity of clinker ash has water permeability, air permeability, water retention, and fertilizer retention.

In the clinker ash, the uniformity coefficient U _c is in the range of 13 to 36 and the particle size is relatively wide. In the present invention, the particle size is 3 mm or less. This is because, as described above, when hard particles penetrate into the cracks of hoofs such as cows, there is a risk of causing inflammation, and by setting it to 3 mm or less, this is avoided.

The dolomite hydroxide is a dolomite that is a double salt mineral of calcium carbonate (CaCO ₃ ) and magnesium carbonate (MgCO ₃ ), first calcined at a high temperature of 800 ° C. or higher to produce calcium oxide (CaO) and magnesium oxide (MgO). ) (Binder lime), which is sprayed with water in a reaction kettle to form fine particles of calcium hydroxide (Ca (OH) ₂ ) and magnesium hydroxide (Mg (OH) ₂ ). The firing temperature of the dolomite is desirably 820 ° C. to 860 ° C. in order to enhance the bactericidal effect.
For example, (Ca (OH) ₂ ) is 50 to 55% and (Mg (OH) ₂ ) is 15 to 20%.
This dolomite hydroxide has properties as a strong alkali and, as will be described later, an appropriate disinfecting / deodorizing action is exhibited when used in combination with clinker ash.

The clinker ash powder and the hydrated dolomite fine powder are mixed at a mass ratio of 50 to 65 parts by mass of clinker ash and 35 to 50 parts by mass of dolomite hydroxide with respect to 100 parts by mass in total.
It aims at the synergistic effect of the clinker ash having the performance as the above-mentioned anti-slip material and the dolomite hydroxide having the performance of disinfection and deodorization.
The mixing ratio was as described above because the sterilization / deodorization effect could not be obtained satisfactorily when the amount of dolomite hydroxide was less than 35 parts by mass with respect to 100 parts by mass in total. This is because an excellent anti-slip effect was confirmed within 50 parts by mass.

  Kanuma soil and red jade soil may be added here for economic efficiency. Kanuma soil is a porous weathered pumice that is distributed mainly in the northern Kanto region. It is a soil containing 62-65% allophane. Soil is also a porous pumice that has excellent breathability and water permeability. However, it is a lump and has a hardness that can be crushed when pressed strongly with a finger. As with the clinker ash, the particle size is set to 3 mm or less for the purpose of preventing intrusion into the hoof.

Next, the action and effect of the anti-slip material for livestock barn of the present invention will be described.
First, the clinker ash which is the main material of the present invention, as described above, contains about 28 to 56% of gravel and 36 to 83% of sand, and has sufficient hardness as an anti-slip material.
However, on the other hand, if this rigidity is excessive, strong irritation is given to hoofs, skins, and the like, which may cause inflammation.
On the other hand, the clinker ash of the present invention has a small crushing strength of about 1/5 to 1/10 that of natural sand due to the porosity with a large number of voids inside, and relatively crushing of particles occurs. It is easy to prevent excessive hardness.
In addition, as described above, even if the clinker ash has a large particle size, there is a risk of inflammation if it enters into the cracks of the hoof, etc. In the present invention, the particle size is set to 3 mm or less to eliminate this concern. be able to.

Next, the compaction curve of clinker ash becomes a gentle curve without sharp rise, which is considered to be because the particle shape is complex and difficult to rearrange during compaction, indicating excellent compaction performance. .
Furthermore, this clinker ash has a surface with an irregular surface and a friction coefficient that is a maximum of 6 times that of natural soil. This is presumed to exhibit the rib effect and the like because it is a complex particle having a large number of gaps inside.
These excellent compaction performance and a large coefficient of friction serve as a source of strong resistance against load in the anti-slip material of the present invention, and exhibit an excellent anti-slip function.
Thus, the anti-slip material of the present invention exhibits an excellent anti-slipping effect by spraying it on the walking of livestock animals such as cattle.

Next, the combination ratio of the above clinker ash and dolomite hydroxide was examined.
<Test 1>
Test method: <Anti-slip effect>
When the mixing ratio of clinker ash and dolomite hydroxide is 100 parts by mass, (a) 30 parts by mass, (b) 40 parts by mass, (c) 50 parts by mass, (d) 60 parts by mass, (e ) Five types of conventional products were prepared and their anti-slip effect and bactericidal effect were measured.
The anti-slip effect is obtained by preparing samples of type (b) and (c), adding (e), sprinkling the mixed powder on the concrete passage, and human (with cows) on it By stepping on, the state of slipperiness was evaluated on a scale of 1 to 5, and this is shown in Table 1. The numerical value of evaluation was made into the display of 1-5 in order from a good thing.
<Test results>

Test method: <Disinfection effect>
Samples of the types (a) to (d) described above were prepared, 5% (= 4 g) by weight was added to the stool (80 g) of the milking cow, and left at 25 ° C. for 1 hour. 5 g of the stool after being left standing was collected to prepare an aqueous solution, and its pH was measured. This was shown in Table 2.
<Test results>

Table 3 summarizes both tests.

With respect to the anti-slip effect, excellent evaluation of stage 1 was obtained at 30, 40 parts by mass, and excellent evaluation of stage 2 was maintained even at 50 parts by mass.
For the disinfection effect, the pH value was used as a selection means. At 30 parts by mass, it was only a weak alkali of 9.9, but at 40 parts by mass and 50 parts by mass, it showed strong alkalinity at pH = 11, and at 60 parts by mass, it showed strong alkalinity at pH = 11.3.
Based on the above test results, 50 parts by mass or less was determined to be an appropriate value for the anti-slip effect, and 35 parts by mass or more between 30 parts by mass and 40 parts by mass was determined to be an appropriate value for the bactericidal effect.
As a result, it is appropriate that the clinker ash powder and the hydrated dolomite fine powder are appropriately 50 to 65 parts by mass of clinker ash and 35 to 50 parts by mass of dolomite hydroxide with respect to 100 parts by mass in total. The conclusion was obtained.
Further, in this range, there was no powderiness, and the fear of flying dolomite hydroxide was eliminated.

Next, based on the above formulation, general living bacteria using the anti-slip material of the present invention, a culture test for coliforms, and the like were performed.
<Test 2>
Test method: A sample (control, product of the present invention, conventional product) having a weight ratio of 5% (= 10 g) is added to the stool (200 g) of a milking cow, and left at 25 ° C. for 1 hour. Was collected and diluted to each concentration with sterilized water, followed by a culture test. As the medium, Petrifilm AC plate (general live bacteria) and EC plate (Coliform group) were used. The number of colonies was counted after 24 hours and 48 hours at 37 ° C.

The product of the present invention used in this test is a mixture of clinker ash powder particles having a particle size of 3 mm or less and dolomite hydroxide fine powder mixed in a ratio of 55 parts by mass of clinker ash and 45 parts by mass of dolomite hydroxide. Say.
A conventional product is one that uses fine powder produced when light weight foamed concrete (ALC) is mainly produced, and that is used as an anti-slip material for a barn or the like by spraying the fine powder.
The control refers to a sample that was directly subjected to the test without adding any sample to feces or the like.
Test 1 and Test 2 were both conducted at Okayama Prefectural General Livestock Research Institute.

<Test results>

As a result of the above test, it was confirmed that the product of the present invention has a significant effect of suppressing the number of bacteria in both the live bacteria and the coliform group as compared with the conventional product.
That is, regarding the number of general viable bacteria, when the control was 3.8E + 06 (cfu / g), the conventional product had 2.7E + 06 (cfu / g), the sterilization rate was 7/10, and the reduction rate was 2 In contrast, the product of the present invention was 8.8E + 04, the sterilization ratio was 3/130, the reduction rate was 25%, and a significant reduction was observed.
Even in the number of coliforms, when the control was 2.7E + 03 (cfu / g), the conventional product was 2.6E + 03 (cfu / g), the sterilization rate was 57/59, and the reduction rate was 0%. On the other hand, in the product of the present invention, <0.0E + 01 (cfu / g), the sterilization magnification was> 1000, and the reduction rate was 100%, and the complete sterilization effect was confirmed.

In the present invention, dolomite hydroxide fine powder is mixed into the clinker ash powder, and dolomite hydroxide as fine particles penetrates into the internal gaps of the clinker ash powder as a porous material, and water around the clinker ash powder. Oxidized dolomite is present.
Then, hydroxide ions are generated by moisture absorption such as moisture, and it is considered that general viable bacteria are reduced by the alkali action, and coliform bacteria are also suppressed. At this time, the existence of the internal gap of clinker ash and the gap It is presumed that the presence form of hydroxylated dolomite distributed in the surroundings favors universal and continuous alkaline action.

  At this time, a capillary action acts on the gap of the clinker ash, and the aqueous solution of dolomite hydroxide that has entered the interior moves toward the surface, and a continuous alkaline action is exhibited.

The effect of this alkali is shown in the table, and the pH test value was pH 6.9 for the control and 7.6 for the conventional product, whereas the pH of the product of the present invention was 11.1. This is supported by the fact that it is largely alkaline.
This value of pH 11 or higher is also an effective value for foot-and-mouth disease virus.

  On the other hand, dolomite hydroxide can be expected to have a strong sterilizing and deodorizing action, but there is a concern that it may adversely affect cattle skin and the like as an alkali. However, it has been confirmed that the dolomite hydroxide of the present invention contains magnesium hydroxide and can maintain a healthy state without causing the nipple skin to become rough due to the action of the magnesium hydroxide.

  Also, the clinker ash having a specific gravity of 1.2 and the fine powder of dolomite hydroxide present in the hole of the clinker ash have a low flying property, and the flying problem does not occur even when used in a barn or near a house.

Now, the anti-slip material of the present invention will be discarded if it is used for a certain period of time, but if this is sprayed on the pasture, it becomes a measure against mudiness in the pasture and an auxiliary fertilizer.
In other words, smoldering after rain not only deteriorates the workability of the ranch paddock, but also may induce cattle hoof disease, mastitis, etc. Disinfection effect can be expected from the bactericidal action of dolomite. Also, after spraying, there was a concern that the conventional product would harden the soil, but the clinker ash with high porosity of the present invention has a strong resistance to rolling and avoids becoming hard soil The effect is demonstrated. It also serves as an auxiliary fertilizer because of its excellent fertilizer retention.

  In addition, clinker ash obtained by quenching from the red hot state and washing with water as described above is chemically stable and does not change chemically even when coexisting with dolomite hydroxide. It is stable and clears the Environmental Pollution Notification No. 6 of the Environmental Pollution Standard.

Furthermore, a certain anti-slip effect is recognized also in porous Kanuma soil and Akadama soil, and by adding this, a role as an auxiliary to clinker ash can be expected, and it becomes economically inexpensive.
The blending ratio is appropriately 30 parts by mass or less with respect to 100 parts by mass in total of the clinker ash powder and the dolomite hydroxide fine powder. This is because Kanuma soil and Akadama soil are weakly acidic, and alkali content tends to be weakened at 30 parts by mass or more.

Claims (2)

    A clinker ash granular material having a particle size of 3 mm or less and a hydrated dolomite fine powder are mixed with 50 to 65 parts by mass of clinker ash and 35 to 50 parts by mass of dolomite hydroxide with respect to a total of 100 parts by mass. Anti-slip material for barns. The anti-slip material according to claim 1 is provided with 30 particles of kanuma earth and / or red crust having a particle diameter of 3 mm or less with respect to a total of 100 parts by mass of clinker ash powder particles having a particle diameter of 3 mm or less and fine dolomite hydroxide powder. A non-slip material for a barn, characterized by being added in parts by mass or less.

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