JP4195165B2 - Placement type granular material separator for drums - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a granular material separator and a granular material transporter, and more particularly to a granular material separator and a granular material transporter used for Mo powder and the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a manufacturing process of a refractory metal plate, for example, a molybdenum plate (Mo), there is one in which an additive is mixed with Mo powder in order to obtain material characteristics.
[0003]
As shown in FIG. 3, in order to mix the Mo powder 110 and the additive, a chemical solution or the like is added in a mixing tank 101 of an apparatus called a mixing dryer 100, and the mixture is stirred and mixed with a stirrer 102. The desired Mo powder 110 can be obtained by heating and drying.
[0004]
Further, the Mo powder 110 finished by the mixing dryer 100 is taken out of the mixing tank 101 by, for example, the shovel 103, transferred to the drum can 104, and delivered to the next process.
[0005]
As described above, conventionally, the Mo powder in the mixing tank 101 is manually drawn using a shovel and transferred to a drum can.
[0006]
[Problems to be solved by the invention]
The transfer method is based on the human power of using a shovel to transfer manually, and since the number of papers to be picked is large, a burden is placed on the hands, arms, and waist, and work fatigue is large.
[0007]
Further, in this conventional method, it took 20 to 25 minutes to transfer 70 kg of Mo powder, and the working efficiency was extremely poor.
[0008]
In addition, since the Mo powder contains particles having a fine particle size of about 1.5 μm, the dust rises when picking up with a shovel, and there is a problem from the viewpoint of health and safety of workers.
[0009]
The inner surface of the mixing tank 101 is constructed with a glass lining in consideration of the resistance to chemicals. However, the construction cost is expensive and there are properties that are very vulnerable to impact. For this reason, if the handling of the shovel is accidentally damaged, the economic loss in terms of repair costs is large.
[0010]
On the other hand, in the case of such a conventional example, it is conceivable to adopt a granular material transport machine by vacuum suction, but when dividing the method of the granular material transport machine currently sold by various powder equipment manufacturers The reason why the three methods shown in FIGS. 4 to 6 cannot be adopted is as follows. FIG. 4 is a schematic configuration diagram of a suction-type granular material transporter (hereinafter referred to as “system A”). Referring to FIG. 4, the suction type granular material transport machine includes a transport machine main body 120. The transport machine main body 120 is placed on a container, for example, a drum can 104, a lid 106 having a packing 105 for sealing the inside of the drum can on a lower bottom surface, and a vacuum generation that is attached to the lid 106 and rotates an internal rotary blade 107. For blower 109. The lid 106 includes a suction port connected to one end of the powder suction hose 108 and an exhaust port through which air is sent out by the rotary blade 107. The exhaust port is connected to the bag filter 111. The bag filter 111 has an upper portion supported by a support rod 112 and an opening below, and a cap 113 that can be opened and closed is provided in the opening. The powder sucked by the powder suction hose 108 enters the drum can 104, a part of which is sucked by the vacuum generating blower 109 to reach the bag filter 111, and is stored in the bag filter 111. The exhaust gas 114 is discharged outside the bag filter 111.
[0011]
However, the A method has the following drawbacks.
[0012]
To summarize the drawbacks of the A method, the ability to separate powder and air is low, the sucked powder directly adheres to the blades of the blower 109, and the sucked powder enters the bag filter 111.
[0013]
In the transport test using the actual machine, the amount received in the drum 104 was 92.8%, excluding the powder attached to the blade 107 of the blower 109 and the weight of the powder that entered the bag filter 111, and the recovery efficiency was 92.8%. (Ii) it is difficult to completely clean and remove the powder adhering to the blades of the blower 109 and the powder entering the bag filter 111, and there are many types of powder to be transported, and In this manufacturing operation, where quality control standards are strict, if one A-type transport is used together, it may cause quality contamination problems. In order to solve this, it is conceivable to purchase the number of transport aircraft corresponding to the number of products to be manufactured. However, the economic burden is increased, and (iii) a bag filter for the lid 106 with the blower 109 assembled thereto. Since the assembly position of 111 is misaligned, the center of gravity suspension is poor, and the handleability when placing on the drum can 104 is poor. Further, the fine powder leaking from the bag filter 111 adheres to the surface of the bag filter 111 and becomes dirty during handling.
[0014]
FIG. 5 is a schematic configuration diagram of a suction-type granular material transporter (hereinafter referred to as “method B”). Referring to FIG. 5, the suction-type granular material transport machine 130 includes a cyclone 115 provided on the drum can 104 and a suction transport machine main body 125. The cyclone 115 is provided with a lid provided with an opening for dropping powder at the lower end, and provided with a suction pipe connected to the powder suction hose 116 on the side, and this suction pipe penetrates to the inside. On the other hand, the upper end of the cyclone 115 has a discharge port connected to the evacuation pipe 121. The suction transport machine main body 125 is formed of a cylindrical container having an opening at the upper end, and a lid having a packing is provided on the bottom lower surface so as to seal the opening. A vacuum generating blower 122 is provided in the upper part of the lid, and a suction blade of the vacuum generating blower is provided in the lower part. A bag filter 124 is provided so as to cover the suction blades. A collection box 126 for receiving and taking out the powder is provided at the bottom inside the container, and a suction port joined to the evacuation pipe 121 is provided at the side, and a different side is provided. A drop handle 127 is provided at the position for removing powder adhered to the bag filter.
[0015]
The powder sucked by the powder suction hose 116 is separated into powder and air in the cyclone 115, and the powder 110 falls into the drum can interior 104, and a part of the powder is sucked by the vacuuming pipe 121. It is sent into the transport aircraft main body 125. In the suction machine main body 125, powder and air are separated by the bag filter 124, and the separated air is discharged to the outside as exhaust 123.
[0016]
However, the B method has the following drawbacks.
[0017]
To summarize the disadvantages of the B method, the recovery efficiency of the drum can 104 is low as in the A method, and the amount of powder entering the suction transport machine main body 125 is large. The detailed reasons are summarized below. First, (i) the suctioned powder is separated from the air by the descending spiral air flow generated in the cyclone 115 and the self-weight, so that the recovery efficiency is generally about 98% and the efficiency is low, (ii) the cyclone The fine powder that could not be separated in 115 is separated by the bag filter 124 in the suction transport machine main body 125 and collected in the collection box 126, but frequently transferred to the drum can 104, (iii) Suction It is difficult to completely clean and remove the powder adhering to the transport machine main body 125 and the bag filter 124. If a variety of powders are also used in one transport machine as in the case of the A method, there is a problem of quality contamination. In order to solve this problem, the number of transport aircraft corresponding to the number of varieties is required, and the economic burden is increased.
[0018]
FIG. 6 is a schematic configuration diagram of a suction-type granular material transporter (hereinafter referred to as “method C”). Referring to FIG. 6, the suction-type granular material transport machine includes a transport machine main body 140 and a suction machine 150. The transport machine main body 140 includes a hopper 133 formed of a funnel-like container provided on the gantry 138. The hopper 133 is provided with a suction port connected to the powder suction hose 134 on the side surface, and includes a scraper 131 at the top of the ceiling and a bag filter 132 at the bottom of the ceiling. Yes. A discharge port connected to the vacuum drawing pipe 135 is provided in the ceiling portion. Further, an opening is provided at the lower part of the hopper 133, and a discharge lid 137 driven by an air cylinder 136 is provided in this opening. Further, a drum can 104 as a powder receiving container is provided immediately below the opening. The suction machine 150 includes a vacuum generating blower 141 and is driven by a motor 139.
[0019]
In the suction type granular material transport machine having such a configuration, the powder sucked together with air by the powder suction hose 134 reaches the inside of the hopper 133 and falls into the hopper 133 by its own weight and floats. The powder portion is separated by the bag filter 132, and the air that has passed through the bag filter 132 is sent out to the vacuuming pipe 135, passes through this to the vacuum generating blower 141, and is discharged to the outside as the exhaust 142.
[0020]
However, the C method has the following drawbacks.
[0021]
To summarize the disadvantages of the C method, the powder cannot be supplied directly to the drum can 104 and the size of the transport body 140 is large. The detailed reasons are summarized below. (I) Since the sucked powder is separated from the air by the bag filter 132, the recovery efficiency is 99% or more. However, because the powder is once stored in the hopper 133 and then discharged to the drum can 104, It takes a long time to complete the transportation; (ii) It is necessary to devise a cover, for example, to prevent dust generation between the discharge lid 137 of the hopper 133 and the drum can 104; (iii) Covers and the like need to be attached / detached every time the drum can 104 is replaced, and (iv) the size of the device is large, and if there are 130 transport aircraft main bodies according to the number of types of powder, (V) In the above, providing the number of transport aircraft main bodies 140 increases the economic burden, and (vi) the transport aircraft main body 140 is sealed. A concrete, that the exchange of the hopper 133 the inner surface of the cleaning and bag filter 132 can not be easily, and the like.
[0022]
Therefore, one technical problem of the present invention is to provide a granular material separator and a granular material transporter that can improve work efficiency in the operation of transferring powder in a tank to a drum can. It is in.
[0023]
Further, another technical object of this invention is to improve the recovery efficiency of the granule fraction away machine, improve the product yield, and if the handling powder is expensive, particularly economical effect is large granule separator And it is providing a granular material transport machine.
[0024]
Furthermore, the other technical subject of this invention is providing the granular material separator and granular material transport machine which can achieve size reduction and weight reduction.
[0025]
[Means for Solving the Problems]
According to the present invention, the powdery grains sucked transported by the vacuum force of the vacuum generator blower, wherein the suction transported come powdery particles and air are separated, recovering the separated granular material In a granular material separator that drops and discharges directly to a drum can, a granular material separator case that forms a cylindrical body and that has an opening on the bottom surface of the cylindrical body, and the granular material separator A maintenance lid provided with a vacuum suction side pipe that covers the upper surface of the case and has one end connected to the other end of the vacuum suction hose connected to the vacuum generating blower, and substantially above the powder separator case. Numerous bag filters suspended from the end face position, and tubular powder that opens downward from the lower part of the side of the powder separator case to the lower part of the bag filter and near the center of the powder separator case Suction pipe and said powder suction A vacuum suction hose connected to the outside of the pipe and a cross section provided on the outer periphery along the bottom surface of the cylindrical body of the granular material separator case provided in an inverted L-shaped stepped portion A mounting type granular material separator for a drum can characterized by comprising a packing is obtained.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0027]
FIG. 1 is a view showing a granular material transport machine according to an embodiment of the present invention.
[0028]
2A and 2B are diagrams showing the granular material separator of FIG. 1, where FIG. 2A is a cross-sectional view, FIG. 2B is a plan view, and FIG. 2C is a cross-sectional view taken along line AA in FIG.
[0029]
As shown in FIG. 1, the suction-type granular material transport machine includes a granular material separator 10 as a granular material separator placed and fixed on a drum can 104, and a vacuum generator 30. The powder separator 10 has a lower end connected to the other end of the powder suction hose 15 having one end inserted into the powder in the mixing / drying tank 12 of the mixing / drying machine 20. Further, one end of a vacuum suction hose 6 is provided at the upper end of the granular material separator 10, and the other end of the vacuum suction hose 6 is connected to the vacuum generator 30.
[0030]
The vacuum generator 30 includes a vacuum tank 21, a vacuum generation blower 22 provided on the top of the vacuum tank 21, and a suction port 23 provided at the lower end of the vacuum generation blower 22. When the vacuum generating blower 22 is driven, air is sucked into the vacuum tank 21 through the vacuum suction hose 6 from the granular material separator 10, passes through the suction port 23, and as shown by the arrow 24, the vacuum generator. 30 is exhausted outside.
[0031]
With reference to FIG. 2 (a), (b), and (c), the granular material separator 10 is demonstrated in more detail.
[0032]
The granular material separator 10 is provided via a filter fixing frame 4b so as to cover the cylindrical separator case 1 and the opening hole 2b of the mounting plate 4a provided in the upper part of the separator case 1. The bag filter 2 is provided with a scraper bar 3 that is inserted from the outside to the inside of the separator case 1 so as to cross the bag filter 2. The bag filter 2 functions as a separation means for increasing the separation efficiency of the powder and air in the granular material separator 10 . Since the separation capability of the bag filter 2 is proportional to the area of the bag filter 2, the cross-sectional shape is a rectangular bag shape, and the area is increased by increasing the number. In addition, the arrangement of the bag filter 2 attached to the granular material separator 10 is equally spaced with respect to the center of the separator case 1 so that the place where the powder adhering to the surface is removed is the central portion of the drum 104. Has been placed.
[0033]
Furthermore, the bag filter 2 is mounted at equal intervals with respect to the center of the cylinder of the separator case 1 so as to facilitate the carrying of the granular material separator 10 and the placing work on the drum can 104. Thereby, it is comprised so that equalization of weight suspension can be aimed at.
[0034]
The separator case 1 has a right cylindrical shape in order to facilitate removal of powder adhering to the inner surface and cleaning. Further, the separator case 1 has a top portion sealed with a maintenance lid 1c and a bottom portion having an open shape so as to be directly placed on a container for receiving powder, for example, a drum can 104. Specifically, the lower end of the separator case 1, packing 1b is provided for vacuum sealing, in close contact with the upper end portion of the drum 104, and has a sealing structure.
[0035]
A powder suction pipe 7 is provided on the lower side surface of the separator case 1. The powder suction pipe 7 is arranged so as to penetrate the wall of the case from the outside to the inside, bend downward near the center, and face the opening downward. That is, the position of the powder suction pipe 7 is arranged below the bag filter 2 so that when the powder sucked into the powder separator 10 directly collides with the surface of the bag filter 2, the powder is sucked at the site. It is possible to prevent the separation area from being reduced due to sticking.
[0036]
Further, in order to uniformly deposit the powder sucked into the granular material separator 10 in the drum can 104, the discharge position of the powder suction pipe 7 is set to the cylindrical center position of the separator 1, and the discharge direction is downward. It is configured.
[0037]
On the other hand, at the upper end of the separator case 1, a vacuum suction side pipe 5 is provided on the maintenance lid 1c. A space 8 is formed between the maintenance lid 1c, the upper end of the filter 2 and the filter mounting plate 4a. The space 8 is provided above the bag filter 2 so as to exceed the area of the opening hole 2b for attaching the bag filter so that the vacuum force is uniformly applied to the bag filters 2.
[0038]
Further, the suction port of the vacuum suction side pipe 5 is arranged at the center position of the cylindrical case so that the flow of air to be sucked becomes uniform.
[0039]
Returning to FIG. 1, in the granular material transport device according to the embodiment of the present invention, the fine powder that has passed through the bag filter 2 is prevented from adhering to the blades of the vacuum generating blower 22 of the vacuum generator 30. Therefore, an apparatus configuration in which the vacuum tank and the vacuum generating blower 22 are arranged after the granular material separator 10, that is, on the downstream side is adopted. Therefore, the fine powder is separated by its own weight in the vacuum tank 21 and clean air is introduced into the vacuum generating blower 22.
[0040]
Next, the specific use result of the granular material transport machine by embodiment of this invention is demonstrated.
[0041]
First, 210 kg of Mo powder having an apparent density of 1.6 kg / l and a particle size of 1.5 μm to 45 μm could be transported in 20 minutes to the drum can 104 located at a distance of 3 m on the same floor surface.
[0042]
Further, by using the granular material separator 10 based on the bag filter 2, the recovery rate to the drum can 104 can be made 99.96% or more.
[0043]
In addition, the powder that could not be removed by the granular material separator 10 dropped by gravity in the vacuum tank 21, and the recovery rate was 99.98%.
[0044]
Moreover, the granular material transport device according to the embodiment of the present invention is particularly suitable for transporting granular materials having various particle sizes in a dry state and having a particle size of about 1.5 μm to 1 mm and an apparent density of 2 kg / l or less. is there.
[0045]
Furthermore, the transport capacity of the granular material transport machine according to the embodiment of the present invention is a value at a suction air volume of 6.9 m ³ / min and a vacuum degree of 2.5 kPa, and the transport capacity is 10.5 kg / min. The transport distance was a maximum of 15 m for horizontal transport.
[0046]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a granular material separator and a granular material transporter that can improve the work efficiency in the operation of transferring the powder in the tank to the drum can. .
[0047]
In addition, according to the present invention, since the recovery efficiency of the granular material separator is high, the product yield can be improved, and when the handled powder is expensive, the granular material separator and the granular material transporter having a particularly large economic effect. Can be provided.
[0048]
Further, according to the present invention, due to high collection efficiency of the granule separator, entry of the powder to the vacuum generator is very small, since negligible recovery, vacuum generator even when transporting many types 1 It is possible to use the unit together, and it is possible to provide a granular material separator and a granular material transporter that have a large economic effect.
[0049]
In addition, according to the present invention, a bag filter is used for the powder and air separation unit of the suction type powder transport machine, and the separator can be directly mounted on the powder receiving side device for use. It is possible to provide a granular material separator and a granular material transporter that can be reduced in size and weight.
[0050]
Moreover, according to this invention, the granular material separator and the granular material transporter which can improve the isolation | separation capability of powder and air can be provided.
[0051]
Furthermore, since the powder transport machine of the present invention can be manufactured at a low price, it is possible to provide a granular material separator and a granular material transport machine that are easily industrialized.
[Brief description of the drawings]
FIG. 1 is a diagram showing a granular material transport machine according to an embodiment of the present invention.
2A and 2B are diagrams showing the powder and particle separator of FIG. 1, in which FIG. 2A is a cross-sectional view, FIG. 2B is a plan view, and FIG. 2C is a cross-sectional view along line AA in FIG.
FIG. 3 is a diagram for explaining a mixed powder transport method according to a conventional technique.
FIG. 4 is a schematic configuration diagram of a suction-type granular material transporter (hereinafter referred to as “system A”).
FIG. 5 is a schematic configuration diagram of a suction-type granular material transporter (hereinafter referred to as “method B”).
FIG. 6 is a schematic configuration diagram of a suction-type granular material transporter (hereinafter referred to as “method C”).
[Explanation of symbols]
1 Separator case
1b Vacuum seal packing 1c Maintenance lid 2 Bag filter 2b Opening hole 3 Dash bar 4a Mounting plate 4b Filter fixing frame
5 Vacuum suction side pipe 6 Vacuum suction hose
7 Powder suction pipe 8 Space part 10 Granule separator 11 (Mo) powder 12 Mixed drying tank 15 Powder suction hose 20 Mixer dryer 21 Vacuum tank 22 Vacuum generating blower 23 Suction port 24 Arrow 30 Vacuum generator 100 Mixed drying Machine 101 Mixing tank 102 Stirrer 103 Shovel 104 Drum can 105 Packing 106 Lid 107 Rotating blade 108 Powder suction hose 109 Vacuum blower 110 (Mo) powder 111 Bag filter 112 Support rod 113 Base 114 Exhaust 115 Cyclone 116 Powder suction hose DESCRIPTION OF SYMBOLS 120 Transport machine body 121 Vacuum drawing pipe 122 Vacuum generation blower 124 Bag filter 125 Suction transport machine body 126 Collection box 127 Handle 130 Suction-type granular material transport machine 131 Drawer machine 132 Bag filter 13 Hopper 134 powder suction hose 135 vacuuming pipe 136 the air cylinder 137 ejecting cap 138 pedestal 139 motor 140 transport body 141 vacuum generator blower 150 suction device

Claims (1)

Depending on the vacuum force of the vacuum generator blower sucks transporting granular material, the separating suction transported come powdery particles and air, directly drop into the collecting drum and the separated granular material In a granular separator for discharging, a granular separator case that forms a cylindrical body and has an opening shape on the bottom side surface of the cylindrical body, and covers an upper surface of the granular separator case A maintenance lid provided with a vacuum suction side pipe connected to the other end of the vacuum suction hose connected to the vacuum generating blower at one end, and suspended from a substantially upper end surface position of the powder particle separator case Numerous bag filters, a tubular powder suction pipe that opens downward from the lower side of the side surface of the powder separator case to the bottom of the bag filter and opens downward near the center in the powder separator case, and the powder Connected to the outside of the suction pipe A powder suction hose, and a vacuum seal packing in which a cross section provided on the outer periphery along the bottom surface of the cylindrical body of the granular material separator case is disposed in a stepped portion having an inverted L shape. A mounting type granular material separator for a drum can characterized by comprising:

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