JP4245947B2 - Contaminated solid substance recovery equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recovery equipment contaminated solid material, in particular, in the lead bullets separation recovery method according to a dry, to a recovery equipment contaminated solid material can be efficiently separated and recovered lead bullets.
[0002]
[Prior art]
For example, in shooting ranges such as shotguns and rifles, lead bullets are dispersed in the soil because they shoot outdoors. Since these lead bullets have been left as they are, they have a problem that the lead bullets themselves become contaminated solid substances and soil is contaminated.
[0003]
As a method for separating and collecting such lead bullets from the earth and sand, a specific gravity difference selection using a water stream or the like is possible in the wet type, and a specific gravity difference selection using the wind force is considered in the dry type.
The method for separating and recovering lead ammunition by wet method is capable of separating and recovering lead ammunition with a high probability, but has the problem that the cost of lead-contaminated water is required and the cost is significantly increased. .
In contrast, dry lead separation and recovery methods are advantageous in terms of cost and system. However, it is not possible to collect lead bullets with a high probability of being wet only by separation by wind power. There were also problems such as being necessary.
[0004]
[Problems to be solved by the invention]
The present invention aims to provide a recovery equipment contaminated solid material the light of the conventional problems recovery process has contaminated solid material, it can be efficiently separated and recovered sediment lead bullets are dispersed To do.
[0005]
[Means for Solving the Problems]
To achieve the above object, the recovery equipment contaminated solid material of the present invention, a suction device for sucking contaminated solid material by suction tube for holding and manipulating the operator, it is disposed downstream of the suction device , Shooting equipped with a classification device for classifying coarse particles containing lead bullets from the sucked contaminated solid material, and a dust collecting device arranged downstream of the classification device for collecting fine particles after classification A device that collects soil and sand in which lead bullets that are contaminated solid substances are dispersed from the soil in the field, and uses a cyclone to classify coarse particles containing lead bullets from the sucked contaminated solid materials, and the lower part of the cyclone A rotary hinge type damper is disposed in the discharge portion, and the damper is biased in the closing direction.
[0006]
This contaminated solid material recovery device is a device that recovers soil and sand in which lead bullets, which are contaminated solid materials, are dispersed from the shooting ground soil, and sucks the contaminated solid materials by a suction pipe held and operated by an operator. A suction device, a classification device arranged on the downstream side of the suction device, for classifying coarse particles containing lead bullets from the sucked contaminated solid substance, and a classification device arranged on the downstream side of the classification device, Since it is equipped with a dust collector that collects particles, it is possible to suck the earth and sand in which lead bullets are dispersed with a suction pipe, carry it by air with a suction device, and collect it with a classification device. By adjusting, it is possible to adjust the particle size of the recovered material, and easily cope with air volume changes (conveyance capacity changes) due to differences in pipe length (conveyance length). Compared to putting it directly into the bag, Higher feed efficiency (capacity) of classification can also be less scattering of dust can be.
[0007]
Then, a cyclone is used in a classifier for classifying coarse particles containing lead bullets from the sucked contaminated solid substance, and a rotary hinge type damper is disposed at the lower discharge portion of the cyclone, and the damper is biased in the closing direction. Thus, the suction force of the dust collector can effectively draw out the air conveying capability of the injector.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the recovery equipment contaminated solid material of the present invention with reference to the accompanying drawings.
[0009]
In FIGS. 1-2, showing one embodiment of the recovery equipment contaminated solid material of the present invention.
Method for recovering contaminated solid materials by this apparatus, a contaminated solid material 3 by suction with air by the suction tube 1, as well as classified by the classification unit 4 a coarse fraction 3a from the contaminated solid material 3 that the suction, after classification fine The particle fraction 3 b is collected by the dust collector 5.
[0010]
In addition, the contaminated solid substance recovery device used in this recovery method includes a suction device 2 that sucks the contaminated solid substance 3 through the suction tube 1, and a suctioned contaminated solid substance 3 that is disposed downstream of the suction device 2. Are provided with a classification device 4 for classifying the coarse particle fraction 3a, and a dust collector 5 disposed downstream of the classification device 4 for collecting the fine particle fraction 3b after classification.
[0011]
The suction device 2 is composed of an injector that performs suction using the compressed air of the compressor 6, and sucks lead bullets and soil together with air from the suction pipe 1 connected to the suction side, and is connected to the discharge side (pipe ( Alternatively, the air is conveyed to the classifier 4 via a hose).
[0012]
The classifying device 4 is made of a cyclone, and can classify and recover lead bullets as coarse particles from the contaminated solid material 3 which is air conveyed at high speed by an injector.
A gravity-type (or spring-type) rotary hinge damper is provided at the lower discharge part of the cyclone, and the damper is normally closed, and the suction force of the dust collector improves the air conveyance capability of the injector. Pull out effectively.
In addition, when the substance collected in the cyclone reaches a predetermined weight, the damper is pushed down by its own weight and automatically collected in a flexible container bag or the like installed in the lower part. Also at this time, generation of dust when discharging from the cyclone can be reduced by always maintaining a negative pressure in the cyclone by the dust collector.
It should be noted that the cyclone classification capability can be made variable by configuring the cyclone so that secondary air can be introduced.
[0013]
The dust collector 5 includes a dust collector 51 and a blower 52, and can collect the contaminated solid material 3 after removing the lead bullets as fine particles (fine particles).
In this case, by adjusting the amount of suction of the dust collector 5 with respect to the amount of air transported by the injector, the particle size of the recovered material in the classifier 4 and the dust collector 5 can be adjusted, and the pipe length (conveyance length) ) Can easily cope with changes in the air amount (changes in conveying capacity).
[0014]
By the way, in shooting ranges such as shotguns and rifles, lead bullets are dispersed in the soil because they shoot outdoors. These lead bullets are conventionally left as they are.
In such a construction for collecting earth and sand in which lead bullets are dispersed, collection work by human manual work has been generally performed. In particular, lead bullets with a small particle diameter in the soil (less than 3 mm in diameter), etc. However, there is a problem that a large amount of waste remains.
[0015]
Recovery equipment contaminated solid material of the present embodiment can be such lead bullets are air conveyed by the suction device 2 by suction dispersed sediment in the suction pipe 1, is recovered by classification device 4.
In this case, by adjusting the suction amount of the dust collecting device 5, it is possible to adjust the particle size of the collected material, and easily cope with the air amount change (conveyance capacity change) due to the difference in the pipe length (conveyance length). be able to.
Further, this contaminated solid substance recovery device has higher transfer efficiency (capacity), classification, and less dust scattering compared to the case where the transfer hose is directly fed into the recovery bag.
Furthermore, if equipment such as the classifying device 4, the dust collecting device 5, and the generator is mounted on a transport vehicle or the like to improve mobility, the collection work can be efficiently performed in a wide range.
[0016]
At the shooting range, the presence of the lead bullet itself causes the soil to exceed the contamination standards, but the contamination of only the soil due to lead elution is generally not so common.
Therefore, if the cyclone classification is performed while adjusting the suction amount of the dust collector 5, lead bullets hardly move to the dust collector 5 side (because of the large specific gravity of lead). The fine particulate matter to be collected is substantially free of contaminated solid substances with a high specific gravity (including the case where the content of contaminated solid substances is extremely low), and the collected part on the dust collector 5 side is discarded as it is. Therefore, it is possible to reduce the processing cost of the contaminated solid material.
Moreover, the thing collected with a cyclone has as little fine grain as possible, so that it does not interfere with the subsequent lead bullet separation work. For example, it is possible to prevent the fine particles from adhering to the belt conveyor of the sorting machine to deteriorate the conveyance efficiency or increase the clogging of the sieve.
[0017]
Having described the embodiments of the recovery equipment contaminated solid material of the present invention, the configuration of the present invention is not intended to be limited to the description of the above embodiment is changed appropriately within a scope not departing from its gist It is possible.
[0018]
【The invention's effect】
According to the recovery equipment contaminated solid material of the present invention, there is provided an apparatus for recovering sand which lead bullets is contamination solid material is dispersed from the shooting range of soil, contaminated with suction tube for holding and manipulating the worker A suction device that sucks solid substances, a classification device that is disposed downstream of the suction device, classifies coarse particles containing lead bullets from the sucked contaminated solid material, and is disposed downstream of the classification device. And a dust collector that collects the fine particles after classification, so that the earth and sand in which lead bullets are dispersed can be sucked with a suction pipe, air-fed by the suction device, and collected by the classifier. By adjusting the suction amount of the dust device, it is possible to adjust the particle size of the recovered material, and it can easily cope with changes in the air amount (change in transfer capacity) due to differences in pipe length (transfer length). When directly feeding from the transport hose to the collection bag Compared to, transport efficiency (capacity) is high, classification may also be reduced that scattering also possible dust.
[0019]
Then, a cyclone is used in a classifier for classifying coarse particles containing lead bullets from the sucked contaminated solid substance, and a rotary hinge type damper is disposed at the lower discharge portion of the cyclone, and the damper is biased in the closing direction. Thus, the suction force of the dust collector can effectively draw out the air conveying capability of the injector.
[Brief description of the drawings]
1 is a diagram showing one embodiment of the recovery equipment contaminated solid material of the present invention.
FIG. 2 is an explanatory view showing a suction step of the same example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Suction pipe 2 Suction apparatus 3 Contaminated solid substance 3a Coarse-grained part 3b Fine-grained part 4 Classifier 5 Dust collector 51 Dust collector 52 Blower 6 Compressor

Claims (1)

  A suction device that sucks a contaminated solid substance by a suction tube that is held and operated by an operator, and a classification device that is disposed downstream of the suction device and classifies coarse particles containing lead bullets from the sucked contaminated solid substance And a device for collecting earth and sand in which lead bullets, which are contaminated solid substances, are dispersed from the soil of a shooting range, which is disposed downstream of the classifier and collects fine particles after classification A cyclone is used in a classifier that classifies coarse particles containing lead bullets from the sucked contaminated solid substance, and a rotary hinge type damper is disposed at the lower discharge part of the cyclone, and the damper is attached in the closing direction. An apparatus for recovering contaminated solid substances, characterized in that

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