JP2003305411A - Method for treating lead shot of firing range and apparatus for treating lead shot - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for treating lead shots of a firing range capable of recovering only the lead shots and transporting the lead shots to a prescribed place without requiring large-scale machines and apparatus by satisfying the requirements demanded in mountain areas and to provide an apparatus for treating the lead shots. <P>SOLUTION: The method 1 for treating the lead shots of the firing range and the apparatus 2 for treating the lead shots comprise mining top soil 3 containing the lead shots of the firing range, forming lead shot-containing collections through a plurality of times of classification, then feeding the lead shot-containing collections onto a first sliding plate 14 having a prescribed angle of inclination and allowing the collections to fly over onto a second sliding plate 15 arranged through a prescribed spacing 16 from the first sliding plate 14 thereby separating and recovering the lead shots from the collections. The need for the large-scale machines and apparatus in the mountain areas where driving power sources do not exist is eliminated to leave the collections except of the lead shots on the site, by which only the recovered lead shots are transported to the prescribed place while the difficulty in the transportation is eliminated. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead shot treatment method and a lead shot treatment apparatus for a shooting range, and more particularly to a lead shot for a shooting range where lead shots scattered in the shooting range can be easily separated and collected together with topsoil. The present invention relates to a shot-disposal method and a lead shot-disposal device.

[0002]

2. Description of the Related Art Many shooting ranges that have been conventionally installed in various areas are set up by occupying a wide area by utilizing a section of natural forest or grassland. At these shooting ranges, too little lead in bullets and scattering of vegetation and deciduous leaves on the ground surface are scattered, resulting in poor recovery efficiency, resulting in enormous costs and huge costs. As a result, the lead bullets fired as a result are left uncollected in most cases, and as a result, heavy metals such as lead that elute from the left lead shots penetrate into groundwater. It is also reported that the soil begins to run out to the surrounding area and pollutes the surrounding soil at a concentration of 500 to 800 times that of the natural world.

Under such a circumstance, groundwater contaminated with lead that has been dissolved and permeated into the soil of the shooting range may adversely affect the human body, and is therefore targeted for environmental pollution countermeasures. As an example of this countermeasure, a lead shot processing mechanism as shown in FIG. 3 has been proposed. (Japanese Patent Application No. 2001-181056
No.) The shooting range 31 in this example is composed of a flat land 32 and an inclined surface 33, and in the area where lead shots of the flat land 32 fall, a disposal sheet 34 of a management disposal type is arranged inside. A pollution prevention structure 36 in which the insolubilized soil 35 is embedded is formed.

The polluted water that elutes from the lead shot is accumulated in the disposal sheet 34 and then collected and guided to the water treatment facility 40. As a result of the purification treatment, environmental problems are avoided.

Further, a vertical impermeable wall 38 is installed on the slope 37 of the inclined surface 33 from which the lead shots are scattered, and the contaminated water eluted from the lead shots flowing down the inclined surface is treated by the method. Water is collected in the underdrain pipe 39 installed as shown in the butt 37 and guided to the water treatment facility 40. The contaminated water eluted from the lead shots on the inclined surface 33 is the same as in the case of the level ground. No effluent from No. 31, it is surely purified to eliminate environmental problems.

[0006] The water treatment facility 40 specializes in water treatment for lead, and a water treatment tank 41 for treatment is provided before and after the treatment.
And a rainwater regulating pond 42 for coping with floods, etc. are arranged, and lead-contaminated water from the disposal sheet 34 and the underdrain pipe 39 is received by the treatment target water regulating tank 41 for purification treatment, and then the rainwater regulating pond 4
It is discharged to the outside of the shooting range 31 via 2

Therefore, lead shots scattered on the surfaces of the flat land 32 and the inclined surface 33 are periodically collected to prevent lead damage from occurring, thereby preventing problems. Since the surface water generated in 32 is hardly polluted, it should be collected in the water collection channel 43 installed outside the pollution prevention structure 36 and directly guided to the rainwater regulating pond 42 without passing through the water treatment facility 40. ing.

A monitoring well 44 is provided outside the flat land 32 to constantly monitor that lead-contaminated water has not flown to the outside.

Although the above-mentioned shooting range achieves a predetermined effect and achieves the prevention of environmental pollution, it requires a great deal of cost and labor to install pollution control equipment and water treatment facility and its operation management. There is. However, since it is difficult to modify such equipment and facilities at the existing shooting range that is in operation, which is a hindrance to business, it is a place where lead shots are concentrated and easy to collect. It was the current situation that only lead shots from such places were packed in bags and collected, targeting only those.

In particular, the recovery work in a large shooting range is
Since it is a work in a mountainous area where there is no suitable power source, it eliminates the difficulty of transportation while eliminating the need for large-scale machines and equipment, and leaves the items other than lead shots on site and collects them. There was a strong demand to carry only lead shots to a designated place.

[0011]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above situation, and satisfies only the demands for mountainous areas, and only lead shots are required without requiring a large-scale machine or device. It provides a lead shot treatment method and a lead shot treatment apparatus for a shooting range that can be collected and transported to a predetermined place.

[0012]

A method for treating lead shots in a shooting range according to the present invention is a method of mining lead shot mixed surface soil in a shooting range,
A lead shot mixed sample is formed through a plurality of classifications, and then the lead shot mixed sample is put on a first sliding plate having a predetermined inclination angle to form a predetermined gap with the first sliding plate. The lead shots are separated and collected from the collected material by jumping over the second sliding plate that is placed after that, which makes unnecessary the large-scale construction in the mountainous areas where there is no power source, By leaving the items at the site, only the lead shots that have been collected are transported to the designated place while eliminating the difficulty of transportation.

The lead shot treatment apparatus according to the present invention is used for the lead shot treatment method in the above-mentioned shooting range. Basically, a lead shot collecting mixed material charging mechanism, a plurality of sieves arranged by receiving the charging mechanism, It is composed of a first sliding plate having a predetermined inclination angle received under the sieve and a second sliding plate arranged with a predetermined gap with the first sliding plate, and specifically, the first sliding plate. The inclination angle of the plate is around 22 degrees, and the gap with the second sliding plate is 10 cm.
The feature is that the lead shots are efficiently and easily separated and collected without using a large-scale machine or device even in a mountainous area where there is no power source.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The lead shot treatment method for a shooting range according to the present invention is a method for digging lead shot mixed surface soil for a shooting range to form a lead shot mixed collection through a plurality of classifications, and then a lead shot. The mixed collected matter is put on the first sliding plate having a predetermined inclination angle and jumped onto the second sliding plate arranged with a predetermined gap from the first sliding plate, thereby collecting the collected matter. The lead shots are separated and collected from.

As a result, the large-scale machines and devices in the mountainous areas where the power source does not exist are made useless, and the ones other than the lead shot are left on site, and the difficulty in transportation is recovered. Only lead shots are transported to the designated places. Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an embodiment diagram showing a lead shot treatment method for a shooting range according to the present invention. In the lead shot treatment method 1 shown in the present embodiment, a lead shot treatment apparatus 2 according to the present invention is provided.
Is used.

However, the lead shot processing device 2 is charged with all the collected matter 3 which forms the soil topsoil including the lead shots collected from the shooting range, earth and sand, plants and leaves, etc. As described above, a means for extracting only lead shots by using a large amount of power is not adopted, but only the lead shots 4 are simply and quickly extracted by a mechanism having a configuration described later.

That is, a large number of lead shots used at the time of shooting are scattered in the shooting field formed in the mountain area. For this reason, the topsoil indiscriminately collected by human power from the sloping ground of the shooting range contains lead shots scattered on the ground surface together with the surrounding earth and sand. In the method, only the lead shots are easily extracted only by human power without any power source used for a large-scale selection means for extracting lead shots.

Further, the lead shot processing apparatus according to the present invention includes a loading mechanism for the lead shot mixed collection material, a plurality of sieves arranged by receiving the loading mechanism, and a first sliding plate having a predetermined inclination angle received under the sieve. And a second sliding plate disposed with a predetermined gap from the first sliding plate.
It is composed of a sliding plate. Specifically, the inclination angle of the first sliding plate is about 22 degrees, and the gap with the second sliding plate is 10c.
The feature is that it is around m.

As a result, the lead shot processing apparatus according to the present invention makes it possible to separate and collect only lead shot efficiently and easily without using a large-scale machine or device even in a mountain area where no power source exists.

An embodiment of the lead shot processing apparatus used in the lead shot processing method of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an embodiment of the lead shot processing apparatus. 2 is shown, and FIG. 2 shows a state of a lead shot classification process.

Lead shot processing device 2 in the present embodiment
Is a rough sieving part 5 for classifying the collected material 3 into three stages.
And a sorting unit 7 for sorting the collected material 6 after classification into stone particles, soil particles, and lead shots.

The rough sieving section 5 comprises a primary classifying section 8 for sieving to a particle size of 13 mm or less, a secondary classifying section 9 for sieving to a particle size of 3 mm or less, and a tertiary classifying section for finally sieving to a particle size of 1.3 mm or more. 10 and the particle size transmitted through the third classifier 10.
The non-transmissive plates 26 that receive the permeates 27 of 3 mm or less are sequentially arranged.

Therefore, the collected matter 3 charged from the hopper 11 is finally classified as the collected matter 6 having a particle size of 1.3 to 3 mm, and lead having a particle size of 1.8 mm or 2.0 mm is formed. The shot 4 is dropped to the sorting unit 7 together with stone particles and soil particles having a particle diameter of 1.3 to 3 mm.

Thus, the plants and leaves contained in the collected material 3 and the deciduous leaves and the stone particles of 13 mm or more that are sieved by the primary classification unit 8, the soil grains 12, and the stone particles of 3 mm or more that are sieved by the secondary classification unit 9 Permeate through the soil particles 13 and the tertiary classification unit 10.
The permeate 26 having a size of 3 mm or less is discharged from the side surface of the rough sieving portion 5 to the outside at any time, and is considered to be reused as topsoil by being returned to the shooting field as needed. .

Finally, the collected particles 6 of stone particles, soil particles, and lead shots retained on the sieve of the tertiary classifying unit 10 are transferred to the separating unit 7 to utilize the characteristics of different shapes and specific gravity, Sorted into stone particles, soil particles, and lead shots.

The sorting section 7 is composed of a plurality of sliding plates arranged with an inclination angle. The sorting unit 7 in the present embodiment is made up of a lightweight first sliding plate 14 and a second sliding plate 15 made of wood or plywood to facilitate transportation and the like. A gap portion 16 is provided between the two sliding plates 14 and 15, and the first sliding plate 14 has a horizontal distance l ₁ = 170 cm and a vertical height h ₁ = 70 cm, and an inclination angle of about 22. It is located at about 23 'and the second
Sliding plate 15 has a horizontal distance l ₂ = 90 cm and a vertical height h ₂
It is arranged at an inclination angle of about 18 ° 26 'with a positional relationship of = 30 cm.

The form of the gap portion 16 formed between the first sliding plate 14 and the second sliding plate 15 has a horizontal distance l ₃
= 10 cm and the vertical height h ₃ = 6 cm, the collected material 6 after the third classification has the same particle size but is mixed with the lead shot 4, the stone particles 17, and the soil particles 18. They are configured so that they can be separated.

The above-mentioned embodiment is the optimum related numerical value by the result of repeated experiments for separating the lead shot 4 having a particle diameter of 1.8 mm or 2.0 mm, but these dimensional angles are never specified. However, the inclination angle of the first sliding plate is about 22 degrees, the mutual gap is about 10 cm, and the inclination angle of the second sliding plate is about 18 degrees. The stone grains 17 and the soil grains 18 can be appropriately changed in order to cope with the specific gravity, the shape and the wet condition of the earth and sand formed respectively, and the surface smoothness of the first sliding plate.

The sliding surface 19 of each sliding plate is made of a decorative plywood with a smooth surface coated with resin. To the left and right of the sliding surface, the sprues 20, 20 are secured so that the collected material 6 does not spill. Forms a border frame.

The lead shot processing method and the lead shot processing apparatus of the shooting range are not limited to the above-mentioned embodiment, and in the above-mentioned embodiment, the separating unit for separating the stone particles, the soil particles, and the lead shot is used. Only the first slide plate, the second slide plate, and the gap portion that are configured can be arranged at an appropriate place on the shooting range while maintaining the above positional relationship.

That is, since each sliding plate is mainly composed of lightweight wood or plywood as described above, it is convenient to carry it into the mountain area, and it can be sorted by assembling it at an appropriate place on the shooting range. Parts can be easily installed.

Then, the collected material 3 of the shooting range is appropriately classified by a separate sieve, and then thrown into the first sliding plate of the arranged separating section, whereby only the lead shot can be separated and collected. At the same time, it eliminates the need for large-scale machinery and equipment, and at the same time, leaves everything other than lead shots at the site to eliminate the difficulty of transportation.

Further, in such a case, the lead shot can be directly recovered by the recovery box 23 by omitting the second sliding plate.

Next, a mechanism for separating the lead shot 4, the stone grains 17, and the soil grains 18 mixed in the collected matter 6 will be described.

First, the fine powder adhering to the surfaces of the lead shot 4, the stone grains 17, and the soil grains 18 is peeled off by the impact during the sliding sliding of each sliding plate, and the sliding surface 19 of each sliding plate is removed. The angular stone particles 17 and the soil particles 18 that remain like dust in the gap 1 formed below the first sliding plate 14
It stays on the sliding surface 19 without reaching 6.

With respect to these fine powders remaining on the sliding surface 19 and the angular stone particles and soil particles, sweeping into the gap portion 16 with a broom every time the collected matter 3 is thrown in, and an operation handle. By shaking 24 up and down with the groove 25 as a guide, it is dumped into the sediment treatment box 22 through the charging mechanism 21 arranged under the gap 16.

Further, the stone grains 17 having a relatively non-angular shape
The specific gravity of the soil particles 18 is about 2-3, which is smaller than the specific gravity of the spherical lead, which is about 11, so that the sliding velocity does not become as high as that of the lead shot 4. Therefore, the first sliding plate 14
Without reaching the second sliding plate 15 after sliding down
From the gap portion 16 formed therebelow, the hopper 21 arranged below falls into the earth and sand treatment box 22.

On the other hand, the spherical lead shot 4 has a specific gravity of about 11
Therefore, by vigorously sliding down while sliding on the sliding surface 19 formed on the first sliding plate 14, the second sliding plate 15 is passed while passing over the gap 16.
Therefore, the second sliding plate 15 is further slid and dropped into the collection box 23 installed below to be collected.

Further, when the lead shot 4 reaches the second sliding plate 15, soil particles and the like stuck to the lead shot are separated by the impact upon arrival, and the separated soil particles and the like are lead. It does not fall with the shots 4 and stays on the second sliding plate 15, which contributes to further improving the recovery rate of the lead shots 4.

According to the experimental results of the lead shot processing device 2 shown in the present embodiment, rarely spherical particles close to the spherical shape are mixed in the collected material 6 to be introduced, and the spherical stone particles are lead shots. Although it may slip off and reach the collection box in the same manner as above, it is verified that the weight ratio of the lead shot after the collection is as high as about 99% or more.

As described above, since the lead shot treatment method and the lead shot treatment apparatus for the shooting range according to the present invention are configured as described in the above embodiments, the conventional lead shot treatment mechanism becomes a problem. The use of large-scale machinery and equipment in mountainous areas where there was no power source, and other than lead shots left at the site, solved the difficulty of transportation,
Only the collected lead shots can be easily transported to a predetermined place.

Although the present invention has been described in detail based on the embodiments, the lead shot processing method and the lead shot processing apparatus for a shooting range according to the present invention are not limited to the above embodiments. It goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0044]

According to the method for treating lead shots in a shooting range according to the present invention, the lead shot mixed surface soil in the shooting range is mined to form a lead shot mixed collection through a plurality of classifications, and then a lead shot mixed collection. The object is put on the first sliding plate having a predetermined inclination angle and jumped on the second sliding plate which is arranged with a predetermined gap from the first sliding plate, so that the lead is collected from the collected material. Since the shots are separated and collected, the large-scale machinery and equipment in the mountainous areas, where there is no power source, becomes useless, and the ones other than lead shots are left on site to eliminate the difficulty of transportation. However, it has the effect of transporting only the collected lead shots to the designated place.

The lead shot treatment apparatus according to the present invention is provided with a lead shot injection collected material feeding mechanism, a plurality of sieves arranged by receiving the feeding mechanism, a first sliding plate having a predetermined inclination angle received under the sieve, and a first sliding plate. It is composed of one sliding plate and a second sliding plate arranged with a predetermined gap, the inclination angle of the first sliding plate is around 22 degrees, and the gap with the second sliding plate is around 10 cm. Therefore, even in mountainous areas where there is no power source, large-scale machines and devices are unnecessary and only lead shots can be efficiently and easily separated and collected.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a lead shot processing method and a lead shot processing apparatus for a shooting range according to the present invention.

FIG. 2 is an operation state diagram for explaining the functions of the lead shot processing method and the lead shot processing apparatus according to the present invention.

[Fig. 3] Diagram of a purification treatment mechanism in a conventional shooting range

[Explanation of symbols]

1 lead shot treatment method, 2 lead shot treatment equipment, 3 collected material, 4 lead shot, 5 rough sieve part, 6 collected material, 7 sorting part, 8 primary classification part, 9 secondary classification part, 10 tertiary classification part, 11 Hopper, 12 13mm stone grain, fine grain, 133mm stone grain,
Granules, 14 first sliding plate, 15 second sliding plate, 16
Gap, 17 stone particles, 18 soil particles, 19 sliding surface, 20
Pier, 21 input mechanism, 22 earth and sand treatment box, 23 collection box, 24 operation handle, 25 groove, 26 impermeable plate, 27 permeate, 31
Shooting range, 32 flats, 33 slopes, 34 disposal sheets,
35 Insolubilized soil, 36 Pollution prevention structure, 37 Hojiri, 38 Vertical impermeable wall, 39 Underdrain pipe, 40 Water treatment facility, 41 Treatment target water adjustment tank, 42
Rainwater regulating pond, 43 catchments, 44 monitoring wells,

Claims (3)

[Claims] 1. The lead shot mixed topsoil of a shooting range is mined to form a lead shot mixed collection through a plurality of classifications, and then,
Putting the lead shot-containing mixed material on a first sliding plate having a predetermined inclination angle and jumping it onto a second sliding plate arranged with a predetermined gap from the first sliding plate. Then, the lead shot treatment method of the shooting range that separates and collects the lead shot from the collected material. 2. A charging mechanism for a lead-scattered mixed material, a plurality of sieves arranged by receiving the charging mechanism, a first sliding plate having a predetermined inclination angle received under the sieve, and the first sliding plate. And a second sliding plate disposed with a predetermined gap therebetween.
A lead shot handling device used in the lead shot handling method for a shooting range described in. 3. The lead shot processing apparatus according to claim 2, wherein the inclination angle of the first sliding plate is about 22 degrees and the gap between the first sliding plate and the second sliding plate is about 10 cm.