JP4905791B2 - Ultra fine grain crusher - Google Patents

Description

The present invention relates to an ultrafine particle pulverizer capable of pulverizing a raw material such as a medicine, food, or metal such as a cobalt alloy into ultrafine particles.

Conventionally, as an example of this type, there is a pulverizing method using a jet mill disclosed in JP-A-2005-118725 as shown in FIG. Referring to FIG. 9, 1 is a jet mill, 2 is a swirl crushing chamber formed in a hollow disk shape, 3 is a crushing nozzle provided in the swirl crushing chamber 2, and 4 is a swirl crushing chamber 2. 1, a supply nozzle for introducing the crushed material into the swirl crushing chamber 2, 5 a venturi nozzle of the supply nozzle 4, 6 a solid-gas mixing chamber formed upstream of the venturi nozzle 5, and 7 a venturi nozzle 5. An intrusion nozzle 8 disposed coaxially with the venturi nozzle 5 via the solid-gas mixing chamber 6 upstream of the pulverized material, and a debris inlet 8 connected to the solid-gas mixing chamber 6. The crushing nozzles 3 are arranged at equal intervals on the side wall of the swirling crushing chamber 2 starting from the supply nozzle 4. 9 is a main body casing, 10 is a ring liner of the swirl crushing chamber 2, 11 and 12 are top and bottom liners disposed above and below the swirl crushing chamber 2, and 13 is removably disposed at the center of the bottom liner 11. A center pole whose upper part is formed in a substantially conical shape, 14 is an outlet formed coaxially with the center pole 13 and is detachably disposed on the top liner 11, and 15 is connected to the center upper part of the swirl crushing chamber 2 and swirl and crushed. Fine powder outlet through which the pulverized material crushed in the chamber 2 is discharged, 16 is a high-pressure header, 17 is a high-pressure gas pipe for supplying high-pressure gas from the high-pressure header 16 to the pulverizing nozzle 3, and 18 is from the high-pressure gas header 16 to the supply nozzle 4 A high-pressure gas pipe for supplying high-pressure gas, 19 is a pressure adjustment valve for adjusting the pressure of the high-pressure gas header 16, and 20 flows through the high-pressure gas pipe 18. A flow rate adjusting valve for adjusting the flow rate of the high-pressure gas that.

Then, the operation will be explained. When the flow rate adjusting valve 20 is fully opened and the pressure adjusting valve 19 is opened, the high pressure gas is supplied from the high pressure gas pipes 17 and 18 to the pressing nozzle 7 of the pulverizing nozzle 3 and the supply nozzle 4 at the same pressure. Supplied. The pulverized material is supplied from the pulverized material inlet 8, mixed with air in the solid-gas mixing chamber 6 by a high-pressure jet flow injected from the pushing nozzle 7, and supplied from the venturi nozzle 5 to the swirl pulverizing chamber 2. A swirl flow is generated in the swirl crushing chamber 2 by the high-pressure gas flow injected from the crushing nozzle 3, a crushing zone is formed on the ring liner 10 side of the swirl crushing chamber 2, and a classification zone is formed on the center side of the swirl crushing chamber 2. Is done. In the pulverization zone, the edge-like high-pressure gas flow ejected by the pulverization nozzle 3 is blown into the swirl flow with high shearing properties while maintaining a high speed, and the coarse particles that circulate in the swirl flow are disturbed, and the crushing materials frequently collide with each other. The pulverized material is finely pulverized. The pulverized fine powder is classified in the classification zone, and is discharged from the outlet 14 provided in the swirl pulverization chamber 2 through the fine powder discharge port 15. The coarse particles classified in the classification zone and not discharged are swirled on the outer periphery of the swirling flow by the centrifugal force generated by swirling, and the coarse particles collide with each other to be repeatedly crushed. After the swirl flow is formed in the swirl flow forming step, the flow rate of the high-pressure jet flow ejected from the pushing nozzle 7 of the supply nozzle 4 by reducing the opening of the flow rate adjusting valve 20 is ejected from the crushing nozzle 3. The flow rate is reduced to about 1/10 to 1/4. In the swirling crushing chamber 2, the high-pressure gas flow forms a concentric swirling flow while maintaining a high speed, and the pulverized material is efficiently crushed in the swirling flow, and the pulverized particles are discharged from the fine powder discharge port 15. This is a technique in which the pulverized material is sucked into the swirl pulverizing chamber 2 even when the flow rate of the high-pressure gas injected from the pulverizing nozzle 3 is small.

Conventionally, as another example of this type, there is a pulverizer disclosed in the Design Gazette of Design Registration No. 1228167 as shown in FIG. If it demonstrates about this, the grinder 21 will accelerate | stimulate a particle | grain to the speed beyond a sound speed with the energy of high pressure gas, and will grind | pulverize various raw materials by the collision between particles. The pulverizer 21 is connected to the upper ends of tubes 22 for feeding high-pressure gas, and is connected to the main body 23 for pulverization, and the distribution pipe 24 is connected to the lower ends of the tubes 22 for distributing high-pressure gas and feeding it to the main body. And tubes 22 for feeding high-pressure gas from the distribution pipe 24 to the main body 23. In the figure, reference numeral 25 denotes a hopper for supplying a powder material such as metal to the main body 23.
Japanese Patent Laid-Open No. 2005-118725 Design Registration No. 1228167 Design Gazette

Since the conventional technology has the above-described configuration and operation, the following problems existed.
According to one example described above, the gas supplied to the pulverizing nozzle 3 and the supply nozzle 4 is specified as a high-pressure gas, and the compressor that generates the high-pressure gas needs to have a dedicated high-pressure gas, and the equipment has a high value. In addition, there is a problem that the powder crusher becomes large and large.
Further, only the high pressure gas is supplied from the supply nozzle 4 to the swirl crushing chamber 2 and no external air is taken in. The mixing and swirling by the high pressure gas from both nozzles 3 and 4 in the swirl crushing chamber 2 is performed. However, according to this, there is a problem that the function of generating ultrafine particles of the powder cannot be fully exhibited.
Further, the high-pressure header 16 is connected to the crushing nozzle 3 and the supply nozzle 4 via the high-pressure gas pipes 17 and 18, and the high-pressure gas pipes 17 and 18 need to be provided. However, there is a problem that it is not suitable for practical use.
In some cases, the particles pulverized in the swirl crushing chamber 2 may not be completely formed into predetermined fine powder particles. In such a case, the particles discharged from the fine powder discharge port are again introduced into the pulverizer inlet 8 and re-pulverized. There was a problem that it was necessary to carry out the duplication work of doing.

According to the other example described above, a high-pressure compressor that generates high-pressure gas to be fed to the main body 23 of the pulverizer 21 is required, and a large number of tubes 22 that connect the distribution pipe 24 and the main body 23 are also required. There is a problem that is substantially the same as that of the above-described one example. In order to completely pulverize each material to be put into the hopper 25, it is necessary to configure the main body portion 23 of the pulverizer 21 in a plurality of stages. In such a case, the entire pulverizer becomes very large and the equipment cost increases. However, there is a problem that the appearance configuration becomes complicated.

The ultrafine particle pulverization apparatus according to the present invention eliminates the high-pressure gas pipe and tube to solve the above-described problems, takes in the pulverized raw material and the outside air from the supply nozzle side, and converts the airflow from the pulverization nozzle and the supply nozzle into the swirling pulverization chamber and An object of the present invention is to provide an ultrafine particle pulverization system for a pulverized raw material having a small structure or a small scale that can appropriately form the pulverized raw material into an ultrafine particle in an airflow passage groove or the like. It consists of the structure and means.
In other words, according to the first aspect of the present invention, the tank into which the low and high pressure airflow is sent from the compressor, the pulverizing nozzle fixed to the upper part of the tank and fed by the low and high pressure airflow, and the supply of the pulverized raw material are supplied. In an ultrafine particle crushing device comprising a main body casing provided with a nozzle and a fine powder take-out member arranged on the upper surface of the main body casing, the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side. And an intermediate multi-layer ring interposed between them, and the crushing nozzle includes a filter that projects the base end of the main body casing to the outside and takes outside air into the base end. The supply nozzle is mounted on the inner wall portion, and the tip of the supply nozzle is protruded and arranged at a predetermined angle at a predetermined angle toward the inner direction of the hollow portion in the main body casing. The inner wall portion of the main body casing is supplied with a pulverized raw material by an inlet hopper and adjusts and sucks the outside air, and the front end of the main casing is protruded inward of the hollow portion in the main body casing. .

According to the second aspect of the present invention, the jet air flow intake device in which the low and high pressure air flow is fed from the compressor and configured by piping, and the low and high pressure air flow fed by connecting the jet air flow intake device A tank to be sucked up through a wall surface, a main body casing mounted on the upper portion of the tank, a fine powder take-out member disposed on the upper surface of the main body casing, a top cover on the upper surface side, and a bottom on the lower surface side And a middle multi-layer ring interposed between them, and the crushing nozzle includes a filter that protrudes the base end of the main body casing to the outside and takes outside air into the base end. The main body casing is mounted on the inner wall portion, and the tip thereof is protruded and arranged at a predetermined angle toward the inner direction of the hollow portion in the main body casing at a predetermined angle. Slurry is an inner wall portion of the main body casing and supplies the pulverized raw material by the inlet hopper, and a tip of the raw material protrudes inward of the hollow portion of the main body casing, and the outside air enters the cylindrical wind tunnel portion of the supply nozzle. The suction amount adjuster is fixed and arranged.

According to the third aspect of the present invention, the jet air flow intake device in which the low and high pressure air flow is fed from the compressor and configured by the pipe, and the low and high pressure air flow fed by connecting the jet air flow intake device A tank to be sucked up through a wall surface, a main body casing mounted on the upper portion of the tank, a fine powder take-out member disposed on the upper surface of the main body casing, and fixed to the bottom of the tank and capable of rotating the grinding device A crusher rotating member set at a predetermined position, a caster that supports the crusher rotating member and that can move the crusher to a predetermined position, a top cover on the upper surface side, and a bottom ring on the lower surface side of the main body casing And an intermediate multi-layer ring interposed between the two, and the pulverization nozzle projects its base end outward from the main body casing, and the base end is exposed to the outside air. The supply nozzle is provided with a filter to be taken in and mounted on an inner wall portion of the main body casing, and a plurality of or a plurality of tips are set at predetermined angles toward the inner direction of the hollow portion in the main body casing. Is an inner wall portion of the main body casing and supplies the pulverized raw material by the inlet hopper, the tip of the main body casing is protruded inward of the hollow portion of the main body casing, and outside air is sucked into the cylindrical wind tunnel portion of the supply nozzle The quantity adjuster is fixed and arranged.

According to the fourth aspect of the present invention, the jet air flow intake device in which the low and high pressure air flow is fed from the compressor and configured by the piping, and the low and high pressure air flow fed by connecting the jet air flow intake device A tank to be sucked up via a wall surface, a main body casing mounted on the upper part of the tank, a fine powder take-out member arranged on the upper surface of the main body casing, a tank mounting part fixed to the bottom of the tank, and a crushing device A rotating device rotating member comprising one rotating arm and the other rotating arm, one supporting portion mounted on one rotating arm, the other supporting portion mounted on the other rotating arm, and a base on which the both supporting portions are fixed. A caster constituted by a portion, a rotation restricting member for restricting the rotation of the crushing device to the one support portion, and a rotational drive for setting the rotational positioning of the crushing device to the other support portion The main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multi-layer ring is interposed therebetween, and the pulverization nozzle has its base end outside the main body casing. Provided with a filter that protrudes in the direction toward the base end and is attached to the inner wall portion of the main body casing, and a plurality or a plurality of front ends thereof are inwardly directed toward the inner direction of the hollow portion in the main body casing. The supply nozzle is an inner wall portion of the main body casing and supplies the pulverized raw material by the inlet hopper, and its tip protrudes toward the inner direction of the hollow portion of the main body casing. An outside air suction amount adjuster is fixed and arranged in a cylindrical wind tunnel portion of the supply nozzle.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the rotation restricting member is fixed to a side surface of the one support portion and has a guide hole formed therein, and the inside of the guide hole. And a guide pin fixed to one of the rotating arms.

According to a sixth aspect of the present invention, in the fourth aspect of the present invention, the rotation driving member is fixed to a side surface of the other support portion and is rotated by a rotation shaft connected to one or the other rotation arm. A rotating shaft restricting portion that allows and stops; a rotation control lever that controls locking or unlocking of the rotating shaft restricting portion; and a rotating lever that is connected to the rotating shaft and rotates the other rotating arm. It is characterized by becoming.

According to the seventh aspect of the present invention, the jet air flow intake device in which the low and high pressure air flow is sent from the compressor and configured by piping, and the low and high pressure air flow sent by connecting the jet air flow intake device A tank to be sucked up through a wall surface, a main body casing mounted on the upper portion of the tank, a fine powder outlet member having an opening projecting from the upper surface of the main body casing and configured by an overlapping cylindrical body, and the main body A tightening member mounted on the upper surface of the casing and positioned and set in the vertical direction of the fine powder outlet member, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multi-layer ring therebetween The crushing nozzle includes a filter that projects the base end of the main body casing to the outside and takes in the outside air to the base end, and the inner wall of the main body casing. A plurality of or a plurality of protrusions arranged at a predetermined angle toward the inward direction of the hollow portion in the main body casing, and the supply nozzle is an inner wall portion of the main body casing. Characterized in that the pulverized raw material is supplied, the tip of the main casing is protruded inward of the hollow portion of the main body casing, and the outside air suction amount adjuster is fixed and arranged in the cylindrical wind tunnel of the supply nozzle. To do.

Since the ultrafine particle pulverizing apparatus according to the present invention has the above-described configuration and operation, the following effects can be obtained.
That is, according to the first aspect of the present invention, the tank into which the low / high pressure airflow is sent from the compressor, the pulverizing nozzle fixed to the upper part of the tank and fed by the low / high pressure airflow, and the pulverized raw material are supplied. In an ultrafine particle crushing device comprising a main body casing provided with a supply nozzle and a fine powder takeout member arranged on the upper surface of the main body casing, the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side And an intermediate multi-layer ring interposed therebetween, and the pulverization nozzle includes a filter that projects the base end of the main body casing to the outside and takes outside air into the base end, and the main body casing. A plurality of or a plurality of protrusions arranged at a predetermined angle with the tip thereof inwardly directed toward the inside of the cavity in the main body casing, and the supply nose Is an inner wall portion of the main body casing, supplies the pulverized raw material by the inlet hopper, adjusts and sucks the outside air, and has a tip projectingly arranged inward of the hollow portion in the main body casing. An ultrafine particle pulverizing apparatus is provided.
This configuration eliminates high-pressure dedicated compressors and high-pressure gas pipes or tubes, and introduces clean outside air using a filter from the pulverization nozzle side to realize a compact, lightweight and small-scale pulverizer and save energy. It is possible to pulverize the raw material that pulverizes over a wide area, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multilayer ring is interposed between them. Therefore, there is no need to pulverize the raw material again and put it into the inlet hopper, and it can be completely pulverized into predetermined fine particles, thereby improving the workability.

According to the second aspect of the present invention, a jet air flow intake device configured by piping and a low and high pressure air flow fed from a compressor, and a low and high pressure air flow fed by connecting the jet air flow intake device are provided. A tank to be sucked up via an inner wall surface, a main body casing mounted on the upper portion of the tank, a fine powder take-out member disposed on the upper surface of the main body casing, the main body casing on the top cover on the upper surface side, and on the lower surface side It comprises a bottom ring and an intermediate multi-layer ring interposed between them, and the crushing nozzle includes a filter that projects the base end of the main body casing to the outside and takes outside air into the base end. And a plurality of or a plurality of protrusions arranged at a predetermined angle with the tip thereof being directed inward of the hollow portion in the main body casing. A nozzle is an inner wall portion of the main body casing, and supplies a pulverized raw material by an inlet hopper, and a tip of the raw material protrudes inward of the hollow portion of the main body casing, and outside air enters the cylindrical wind tunnel portion of the supply nozzle. Provided is an ultrafine particle crusher characterized by fixing and arranging a suction amount regulator.
This configuration eliminates high-pressure dedicated compressors and high-pressure gas pipes or tubes, and introduces clean outside air using a filter from the pulverization nozzle side to realize a compact, lightweight and small-scale pulverizer and save energy. It is possible to pulverize the raw material that pulverizes over a wide area, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multilayer ring is interposed between them. Therefore, there is no need to pulverize the raw material again and put it into the inlet hopper, it can be completely pulverized into the specified fine particles, and its workability is greatly improved, and the outside air suction amount adjuster is provided in the cylindrical wind tunnel of the supply nozzle. Therefore, it is possible to smoothly supply the pulverized raw material into the main body casing, and the amount of outside air sucked in is suitably controlled to promote collision between the pulverized particles. And, there is more efficiently achieved can effectively ultrafine grain grinding grinding material.

According to the third aspect of the present invention, a jet air flow intake device configured by piping and a low and high pressure air flow fed from a compressor, and a low and high pressure air flow fed by connecting the jet air flow intake device are provided. A tank to be sucked up via an inner wall surface, a main body casing mounted on the upper portion of the tank, a fine powder take-out member disposed on the upper surface of the main body casing, and fixed to the bottom of the tank and a pulverizer can be rotated freely A crushing device rotating member set at a predetermined position, a caster that supports the crushing device rotating member and that can move the crushing device to a predetermined position, and the main body casing has a top cover on the upper surface side and a bottom on the lower surface side. It is composed of a ring and an intermediate multi-layer ring is interposed between them, and the pulverizing nozzle projects its base end outward from the main body casing and is external to the base end. A filter for taking in, is mounted on the inner wall portion of the main body casing, and its tip is protruded and arranged at a predetermined angle toward the inner direction of the hollow portion in the main body casing at a predetermined angle. A nozzle is an inner wall portion of the main body casing, and supplies a pulverized raw material by an inlet hopper, and a tip of the raw material protrudes inward of the hollow portion of the main body casing, and outside air enters the cylindrical wind tunnel portion of the supply nozzle. Provided is an ultrafine particle crusher characterized by fixing and arranging a suction amount regulator.
This configuration eliminates high-pressure dedicated compressors and high-pressure gas pipes or tubes, and introduces clean outside air using a filter from the pulverization nozzle side to realize a compact, lightweight and small-scale pulverizer and save energy. It is possible to pulverize the raw material that pulverizes over a wide area, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multilayer ring is interposed between them. Therefore, there is no need to pulverize the raw material again and put it into the inlet hopper, it can be completely pulverized into the specified fine particles, and its workability is greatly improved, and the outside air suction amount adjuster is provided in the cylindrical wind tunnel of the supply nozzle. Therefore, it is possible to smoothly supply the pulverized raw material into the main body casing, and the amount of outside air sucked in is suitably controlled to promote collision between the pulverized particles. In addition, it is possible to more efficiently realize the ultrafine particle pulverization of the pulverized raw material, and the pulverizer rotating member can easily set the fine powder take-out member of the pulverizer at a predetermined position so that the fine powder after the pulverized raw material treatment can be easily set. This makes it possible to move to a desired position, thereby improving workability.

According to the fourth aspect of the present invention, a jet air flow intake device in which a low and high pressure air flow is fed from a compressor and configured by piping, and a low and high pressure air flow fed by connecting the jet air flow intake device are A tank to be sucked up via an inner wall surface, a main body casing mounted on the upper portion of the tank, a fine powder take-out member disposed on the upper surface of the main body casing, a tank mounting portion fixed to the bottom of the tank, and a pulverizing device The rotating member of the other rotating arm, the supporting member mounted on the one rotating arm, the other supporting member mounted on the other rotating arm, and the both supporting portions. A caster composed of a base portion, a rotation restricting member for restricting rotation of the crushing device to the one support portion, and a rotary drive for setting the rotational positioning of the crushing device to the other support portion. A member, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multilayer ring is interposed therebetween, and the pulverization nozzle has its base end outside the main body casing. Provided with a filter that protrudes in the direction toward the base end and is attached to the inner wall portion of the main body casing, and a plurality or a plurality of front ends thereof are inwardly directed toward the inner direction of the hollow portion in the main body casing. The supply nozzle is an inner wall portion of the main body casing and supplies the pulverized raw material by the inlet hopper, and its tip protrudes toward the inner direction of the hollow portion of the main body casing. An ultrafine particle crusher is provided in which an outside air suction amount adjuster is fixed and arranged in a cylindrical wind tunnel of the supply nozzle.
This configuration eliminates high-pressure dedicated compressors and high-pressure gas pipes or tubes, and introduces clean outside air using a filter from the pulverization nozzle side to realize a compact, lightweight and small-scale pulverizer and save energy. It is possible to pulverize the raw material that pulverizes over a wide area, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multilayer ring is interposed between them. Therefore, there is no need to pulverize the raw material again and put it into the inlet hopper, it can be completely pulverized into the specified fine particles, and its workability is greatly improved, and the outside air suction amount adjuster is provided in the cylindrical wind tunnel of the supply nozzle. Therefore, it is possible to smoothly supply the pulverized raw material into the main body casing, and the amount of outside air sucked in is suitably controlled to promote collision between the pulverized particles. In addition, it is possible to more efficiently realize the ultrafine particle pulverization of the pulverized raw material, and the pulverizer rotating member can easily set the fine powder take-out member of the pulverizer at a predetermined position so that the fine powder after the pulverized raw material treatment can be easily set. This makes it possible to move to a desired position and improve workability, and the rotation restricting member and the rotation driving member allow easy and accurate means from the start of rotation to the rotation stop position without requiring a skilled worker. There is an effect that can be operated.

According to the fifth aspect of the present invention, the rotation restricting member is fixed to the side surface of the one supporting portion and formed with a guide hole, and the rotation restricting member is inserted into the guide hole and attached to the one rotating arm. The ultrafine-grain grinding apparatus according to claim 4, wherein the ultrafine-grain grinding apparatus comprises a fixed guide pin.
With such a configuration, in addition to the effect of the invention according to claim 4, the rotation restricting member is composed of a rotation restricting plate having a simple structure that forms a guide hole for smoothly and appropriately restricting the guide pin. , Has the effect of increasing its mass productivity.

According to the sixth aspect of the present invention, the rotation drive member is fixed to the side surface of the other support portion and is connected to one or the other rotation arm to permit or stop rotation of the rotation shaft. 5. A rotation control lever that controls locking or unlocking of the rotation shaft restricting portion, and a rotation lever that is connected to the rotation shaft and rotates the other rotation arm. The described ultrafine particle crushing device is provided.
With such a configuration, in addition to the effect of the invention of claim 4, the rotation drive member is composed of a rotation control lever and a rotation lever that can be easily operated without requiring skilled work, and improves its workability. effective.

According to the seventh aspect of the present invention, a jet air flow intake device configured by pipes into which a low / high pressure air flow is fed from a compressor, and a low / high pressure air flow fed by connecting the jet air flow intake device A tank to be sucked up via an inner wall surface, a main body casing mounted on the upper portion of the tank, a fine powder outlet member having an opening projecting from the upper surface of the main body casing and configured by an overlapping cylindrical body, A tightening member mounted on the upper surface of the main body casing and positioned in the vertical direction of the fine powder outlet member, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multilayer between them The crushing nozzle is provided with a filter that has a base end protruding outward of the main body casing and takes in outside air to the base end. A plurality of or a plurality of protrusions arranged at a predetermined angle toward the inner direction of the hollow portion in the main body casing, and the supply nozzle is an inner wall portion of the main body casing. The pulverized raw material is supplied by a hopper, and the tip thereof is arranged to protrude inward of the hollow portion of the main body casing, and the outside air suction amount adjuster is fixed and arranged in the cylindrical wind tunnel portion of the supply nozzle. An ultrafine particle crushing device is provided.
This configuration eliminates high-pressure dedicated compressors and high-pressure gas pipes or tubes, and introduces clean outside air using a filter from the pulverization nozzle side to realize a compact, lightweight and small-scale pulverizer and save energy. It is possible to pulverize the raw material that pulverizes over a wide area, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multilayer ring is interposed between them. Therefore, there is no need to pulverize the raw material again and put it into the inlet hopper, it can be completely pulverized into the specified fine particles, and its workability is greatly improved, and the outside air suction amount adjuster is provided in the cylindrical wind tunnel of the supply nozzle. Therefore, it is possible to smoothly supply the pulverized raw material into the main body casing, and the amount of outside air sucked in is suitably controlled to promote collision between the pulverized particles. In addition, it is possible to more efficiently realize the ultrafine particle grinding of the grinding raw material, and to set the number of the intermediate multilayer rings and the vertical positioning of the fine powder outlet member, that is, the height thereof easily and arbitrarily with a fastening member or the like. There is an effect that it can be set and adapted to the rational grinding conditions based on each kind of grinding raw material.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an ultrafine particle crusher according to the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a front view of an ultrafine particle crusher according to the present invention. FIG. 2 is a cross-sectional view of the main part viewed from the direction of the arrow AA in FIG. 1, and is a cross-sectional view when an inlet hopper is provided in the vertical direction. FIG. 3 is a plan view seen from the direction of arrow B in FIG.

Reference numeral 26 denotes an ultra-fine grain crusher, which is a so-called zet mill, and FIG. 1 shows an example of its structure. Reference numeral 27 denotes a tank made of, for example, a cylindrical body, and the inside thereof is formed in a hollow shape. A main body casing 28 made of, for example, a cylindrical body is mounted on the upper portion of the tank 27. The main body casing 28 is formed with a top cover 28a on the upper surface side, a bottom ring 28b on the lower surface side, and an intermediate multi-layer ring 28c on the outer peripheral surface therebetween. The intermediate multi-layer ring 28c is formed by stacking a plurality of, for example, four first to fourth intermediate rings 28c1 to 28c4. The set number of the intermediate rings 28c1 to 28c4 is determined depending on the type of pulverized raw material to be finely pulverized by the ultrafine particle pulverizer. Further, bolt insertion holes 28h,... Are provided in the vertical direction on the outer peripheral edges of the top cover 28a, the first to fourth intermediate rings 28c1 to 28c4, and the bottom ring 28b, respectively, as shown in FIG. Bolts 28g are inserted into the bolt insertion holes 28h, and are provided around and fixed.

Therefore, the bottom ring 28b, the first to fourth intermediate rings 28c1 to 28c4, and the top cover 28 are fixed to the upper portion of the tank 27 in a tightened state. On the other hand, the outer peripheral edges of the first to fourth intermediate rings 28c1 to 28c4 are different from the bolt insertion holes 28h, and the bolt insertion holes 28i,. Then, a fixing bolt (not shown) is inserted into the bolt insertion hole 28i and screwed to fix the first to fourth intermediate rings 28c1 to 28c4 to each other. As shown in FIG. 2, the inside of the main body casing 28 forms a cavity 29, for example, a swirl crushing chamber. The cavity 29 is formed between a top liner 28d provided on the lower surface of the top cover 28a and a bottom liner 28f provided on the upper surface of the intermediate base 28e. The hollow portion 29 may be constituted by an airflow passage groove. The hollow portion 29 is formed in the first to third intermediate rings 28c1 to 28c3 of the intermediate multilayer ring 28c and has a first partition plate 28E1 having substantially the same shape as the first to third intermediate rings, and A second partition plate 28E2 is interposed. The first partition plate 28E1 is set at the position of the boundary line N1 of the first and second intermediate rings, and the second partition plate 28E2 is set at the position of the boundary line N2 of the second and third intermediate rings. Yes.

For example, pulverizing nozzles 30, 30, and 30 having a structure as shown in FIG. 2 are provided at predetermined portions of the inner wall portion of the main body casing 28, that is, the inner wall surface portions 28A1, 28A2, and 28A3 of the intermediate multilayer ring 28c. For each of the third intermediate rings 28c1 to 28c3, as shown in FIG. 4, the supply nozzle 31 is disposed on any of the intermediate rings described later, and for example, nine or ten nozzles are disposed. For example, 29 are arranged as a whole. The inner wall surface portions 28A1, 28A2, and 28A3 of the intermediate multi-layer ring 28c are inner wall surface portions of the first to third intermediate rings 28c1 to 28c3, respectively.

In the drawing, 28A4 is an inner wall surface portion of the intermediate multilayer ring 28c, and is an inner wall surface portion of the fourth intermediate ring 28c4. The crushing nozzle 30 has a base 53, specifically, a base end 30c of the cylindrical wind tunnel portion 30b protruding outward from the main body casing 28, and a filter 53 at the base end 30c. As shown in FIG. 2, the tip of the crushing nozzle 30 shown in the cross-sectional view in the direction of the arrow DD in FIG. 4, that is, the tip of the ejector 30a protrudes inward of the cavity 29 as shown in FIG. 4 is inclined with respect to the horizontal central axis L of the main body casing 28 as shown in FIG. 4 so that the pulverized raw material fed into the cavity 29 is appropriately pulverized into ultrafine particles. Yes. The tip (ejector) 30a of the crushing nozzle 30 has, for example, a slope shape, and this slope shape is a ring liner 28C1 to 28C3 of the first to third intermediate rings 28c1 to 28c3 of the main body casing 28 as shown in FIG. Design to match. In this way, the pulverized raw material fed into the cavity 29 can be appropriately pulverized without any resistance loss to the ultrafine particles.

Here, as the pulverized raw material, metal materials such as cobalt alloy, copper (Cu), aluminum (Al), stainless steel (SUS316), seaweed, other foods, pharmaceuticals, pharmaceutical additives, glass powder, resin, Ceramics, charcoal and the like, and the present invention can be applied to various pulverized raw materials. The tank 27, the main body casing 28, or the first to third intermediate rings 28c1 to 28c3 and the inner wall surfaces 28A1 to 28A3 thereof are made of, for example, stainless steel SUS304. In some cases, it is desirable to make it relatively hard from the viewpoint of health management, for example, alumina Al ₂ O ₃ , zirconia ZrO ₂ , silicon nitride material Si ₃ N ₄ , silicon carbide SiC, cemented carbide or the like.

That is, as shown in FIG. 2, for example, nine crushing nozzles 30 provided with the filter 53 are arranged for one layer of the intermediate multilayer ring 28c, that is, one of the first to third intermediate rings 28c1 to 28c3. Each crushing nozzle 30 is arranged with its tip 30a at a predetermined angle with respect to the horizontal central axis L of the main casing 28. That is, as shown in FIG. 4, the first crushing nozzle 30A is at a predetermined angle θ1 from the horizontal center axis L, that is, at a position of 36 (°), the second crushing nozzle 30B is at a predetermined angle θ2 from the horizontal center axis L, That is, at the position of 72 (°), the third crushing nozzle 30C is at a predetermined angle θ3 from the horizontal center axis L, that is, at the position of 108 (°), and the fourth crushing nozzle 30D is at a predetermined angle from the horizontal center axis L. At a position of θ4, that is, 144 (°), the fifth pulverizing nozzle 30E is at a predetermined angle θ5 from the horizontal center axis L, that is, at a position of 0 (°), and the sixth pulverizing nozzle 30F is at a position from the horizontal center axis L. The seventh pulverizing nozzle 30G is positioned at a predetermined angle θ7 from the horizontal center axis L, ie, 72 (°), and the eighth pulverizing nozzle 30H is at the horizontal center axis L at a predetermined angle θ6, that is, 36 (°). Predetermined angle θ8 from, immediately The position of 108 (°), the ninth grinding nozzles 30I at a predetermined angle [theta] 9, that is, the position of 144 (°) from the horizontal central axis L, are disposed respectively.
Note that the number and predetermined angles of the crushing nozzles 30A to 30I including the first to ninth filters 53 described above can be appropriately changed depending on the capacity of the main body casing 28, the type of the crushing raw material, and the like.
Thus, as described above, the intermediate multilayer ring 28c is provided with the first to third intermediate rings 28c1 to 28c3 or more intermediate rings, so that it is desired at a time in the cavity 29 depending on the kind of the pulverized raw material. Thus, it is not necessary to input the processed finely pulverized raw material into the inlet hopper 32 again, and the work efficiency is greatly improved.

A pulverizing nozzle 30 is provided with a desired number, for example, nine as described above, on the inner wall portions 28A1 to 28A3 of the intermediate multi-layer ring of the main body casing 28 provided with the filter 53. The ejector 30a faces the hollow portion 29. The number of the pulverizing nozzles 30 is determined depending on, for example, the type of pulverized raw material and the design specifications of the ultrafine particle pulverizing apparatus 26. The crushing nozzle 30 has a cylindrical wind tunnel portion 30b, a suction nozzle 30d fixed to the tip of the cylindrical wind tunnel portion 30b, and an ejector 30a provided at the tip of the suction nozzle 30d. The cylindrical wind tunnel portion 30b, the suction nozzle 30d, and the ejector 30a are covered with an ejector case 30e and fixed with a main body mounting screw 30f. Reference numeral 30g denotes a high pressure chamber formed on the outer peripheral surface of the suction nozzle 30d.
In addition, as shown in FIG. 4, for example, the crushing nozzle 30 has an air flow injection hole 30 h that flows into the cavity 29 at the tip of the suction nozzle 30 d, and sends a jet stream to the cavity 29. ing. In the figure, reference numeral 30k denotes a through hole for sending the low and high pressure air flow sucked from the tank 27 to the high pressure chamber 30g. 30 m is a flow hole that matches the through hole 30 k and is formed in the ejector 30 a.

As the air flow sent to the pulverizing nozzle 30, a gas air flow such as air, Freon 21, ethylene, methane, argon, hydrogen, helium or the like is applied, and the pulverized raw material is elastic or plastics such as resin or rubber, wax, and the like. In the case of a material that is weakened by heat, such as heat, ultra-fine particle pulverization can be achieved with energy saving by the low-temperature pulverization step. Here, the low temperature pulverization process has the property that when the material is cooled below the embrittlement point, it becomes extremely brittle with respect to the impact between the particles. The low temperature brittleness is used to positively suppress heat generation during pulverization and thermal modification. It is a step of pulverizing while preventing.

Here, the outer periphery of the main body mounting screw 30f is provided with a male screw 30i, and the male screw 30i is fixed to the inner wall portions 28A1, 28A2, and 28A3 of the main body casing 28 on the inner peripheral surfaces of the body rings 28B1, 28B2, and 28B3. The crushing nozzle 30 is fitted into the inner wall portions 28A1, 28A2, and 28A3 of the main body casing 28 by screwing into the female screw. 28C1, 28C2, and 28C3 are ring liners that are fixed to the body rings 28B1, 28B2, and 28B3 on the cavity 29 side of the body rings 28B1, 28B2, and 28B3. The ring liners 28C1, 28C2, and 28C3 support the ejector 30a of the crushing nozzle 30. In the figure, 28D is a sealing material composed of an O-ring.

A filter 53 is provided at the base end of the crushing nozzle 30. Specifically, the filter 53 is coupled to the base end 30c of the cylindrical wind tunnel portion 30b via a support member 53A. As shown in FIG. 5, the support member 53A is formed of, for example, a stepped cylindrical body, and a male screw 53b is provided around the outer periphery of the first-stage cylindrical portion 53a, which is the tip of the supporting member 53A. The cylindrical wind tunnel portion 30b is coupled by screwing with a female screw (not shown) formed on the inner wall surface of the axial hole formed at the base end 30c of the cylindrical wind tunnel portion 30b.

On the other hand, the base end portion 53d of the second-stage cylindrical portion 53c of the support member 53A is fitted and fixed to the base 53B of the filter 53. The filter 53 takes in outside air, and is composed of a main body 53C whose overall shape is a substantially covered cylindrical body, and a base 53B that covers the bottom surface of the main body 53C. The main body 53C has a double mesh structure, and is composed of a combination of an exterior mesh body 53f and an interior mesh body 53g. The exterior mesh body 53f has a relatively small mesh size, and the interior mesh body 53g has a relatively large mesh size.
With this configuration, dust contained in the outside air is removed in two stages, and clean outside air flows through the through hole 53e of the support member 53A to the axial hole 30j of the cylindrical wind tunnel portion 30b. To send.

Thus, the first to third intermediate rings 28c1 to 28c3 constituting the intermediate multi-layer ring 28c are provided with inner wall portions 28A1 to 28A3, body rings 28B1 to 28B3, ring liners 28C1 to 28C3 and grinding nozzles 30A to 30I, respectively. Yes. Further, in the first intermediate ring 28c1, a flow port 28j1 is formed in the body ring 28B1 as shown in FIG. Similarly, the second and third intermediate rings 28c2 and 28c3 are formed with a flow port 28j2 and a flow port 28j3, and the flow port 28j1 blows the low and high pressure airflows J and K flowing into the tank 27. It functions as a flow passage to be passed. Then, the low and high pressure airflows J and K that have flowed into the tank 27 are sucked up, and a jet airflow is ejected from the crushing nozzles 30 </ b> A to 30 </ b> I to the cavity 29.

The crushing nozzles 30A to 30I including the filter 53 are not necessarily disposed on all of the first to third intermediate rings 28c1 to 28c3. For example, the first and / or second intermediate rings 28c1 and 28c2 It may be disposed only on the third intermediate ring 28c3, which is an arbitrary design matter.

4 and 6, reference numeral 31 denotes an intermediate multi-layer ring 28c of the main body casing 28, that is, a supply nozzle provided in a part of any of the first to third intermediate rings 28c1 to 28c3. The nozzle tip 31 a, that is, the ejector 31 a faces the cavity 29. For example, the supply nozzle 31 is configured as a single unit, but may be configured as a plurality according to the type of pulverized raw material, the design specifications of the ultrafine particle pulverizer 26, and the like. The supply nozzle 31 includes a cylindrical wind tunnel portion 31c, a proximal end portion 31k of the cylindrical wind tunnel portion 31c, a suction nozzle 31d fixed to the distal end of the cylindrical wind tunnel portion 31c, and a distal end of the suction nozzle 31d. And an ejector 31a. The cylindrical wind tunnel portion 31c, the suction nozzle 31d, and the ejector 31a are covered with an ejector case 31e and fixed with a body mounting screw 31f. Reference numeral 31g denotes a high pressure chamber formed on the outer peripheral surface of the suction nozzle 31d. The cylindrical wind tunnel portion 31c and the base end portion 31k of the cylindrical wind tunnel portion 31c are connected by a ferrule 31j as a connecting member.

Reference numeral 32 denotes an inlet hopper for charging the pulverized raw material, which is attached to the inlet side horizontal opening 31b of the supply nozzle 31, that is, the cylindrical wind tunnel portion 31c via the inlet body 32a, and is used for a chemical or metal for which ultrafine particles are desired. For example, it has a function of sequentially feeding various pulverized raw materials such as a cobalt alloy to the supply nozzle 31.
In the figure, 31h is a ferrule as a connecting member, which connects the inlet hopper 32 and the inlet body 32a. In FIGS. 1 and 3, reference numeral 39 denotes two grips fixed to the upper surface (top cover) 28a of the main body casing 28 with bolts 39a. Reference numeral 40 denotes a pressure gauge that measures the pressure value of the airflow flowing through the tank 27. The pressure gauge 40 is attached to the surface of the tank 27 by an attachment part 40a.

Reference numeral 38 denotes an outside air suction amount adjuster as shown in FIG. 6, which is attached to the inlet-side vertical opening 31i of the supply nozzle 31, that is, the cylindrical wind tunnel 31c. The outside air suction amount adjuster 38 includes an outer case 38a and an inner case 38b that are configured to be rotatable, and an outer air suction hole 38c is formed in the rotatable outer case 38a. Then, the rotatable outer case 38a is rotated to adjust the suction area of the outside air suction hole 38c, and the outside air suction amount is controlled. If the outside air suction amount is determined and adjusted, the fixing knob 38d is operated, the outer case 38a is fixed, and the size of the suction area of the outside air suction hole 38c is specified.

Reference numeral 33 denotes a fine powder outlet member for taking out a pulverized raw material such as metal after making it into ultra-fine particles / fine powder, which is disposed on the upper surface of the main body casing 28, that is, at the substantially central portion of the top cover 28a. Yes. More specifically, the fine powder outlet member 33 protrudes through a hole formed in the upper surface of the top cover 28a and a top liner 28d formed in the substantially center in the upper half portion in the vertical length direction, In addition, a substantially lower half portion in the vertical length direction is housed and disposed in the hollow portion 29 of the main body casing 28. Specifically, the length h from the opening 33 a of the fine powder outlet member 33 to the bottom surface of the locking claw 33 b is determined in advance, and the intermediate multilayer ring 28 c disposed in the main body casing 28 is laminated. Depending on the number, that is, the number of the first to third intermediate rings 28c1 to 28c3 or the number of intermediate rings larger than that, the fine powder outlet member 33 can be removed from the upper surface of the top cover 28a of the main body casing 28. The protruding height is determined. In the embodiment shown in FIG. 2, the case where the intermediate multilayer ring 28c is constituted by four intermediate rings, that is, first to fourth intermediate rings 28c1 to 28c4 is illustrated.

The fine powder outlet member 33 has an overall structure composed of an overlapping cylinder, for example, a double cylinder or a triple cylinder, and an upper end of the fine powder outlet member 33 is an opening 33a for taking out after pulverizing the raw material into ultrafine particles. The lower end of the first and third intermediate rings 28c1 to 28c3, for example, is provided with a locking claw 33b that engages with the lower surface of the first and second partition plates 28E1 and 28E2, for example. ing. In FIG. 2, the locking claw 33b of the fine powder outlet member 33 is locked to the lower surface of the second partition plate 28E2. Each time the number of intermediate rings stacked increases, the locking claw 33b of the fine powder outlet member 33 moves downward. Further, the fine powder outlet member 33 has a first partition ring 33d and a second partition ring 33e wound around the outer surface of the outer cylinder 33c, and the first partition ring 33d and the second partition ring 33e are disposed between the first partition ring 33d and the second partition ring 33e. The first partition plate 28E1 is sandwiched between the second partition ring 33e and the locking claw 33b of the fine powder outlet member 33, respectively. The first and second partition rings 33d and 33e are fixed to the outer cylinder 33e of the fine powder outlet member 33 by fastening parts 33f such as bolts. As described above, whenever the number of stacked intermediate rings 28c1 to 28c4 increases, the partition rings 33d and 33e are also increased together with the increase of the partition plates 28E1 and 28E2.

33A is a fixing member for fixing the fine powder outlet member 33 to the upper surface of the top cover 28a of the main body casing 28. As shown in FIGS. 3 and 7, the frame fixing part 33g and the frame fixing part 33g and the caulking part 33h integrally formed. As shown in FIG. 3, the frame fixing portion 33g is provided with a circular rod 33i, and a through hole 33k is formed around the circular rod 33i at a predetermined interval. The fixing bolt 33j is provided in the through hole 33k. The frame fixing part 33g is fixed to the upper surface of the top cover 28a by screwing.

The caulking portion 33h of the fixing member 33A includes a base ring 33m and a caulking arm 33n. An arc-shaped slit 33p is formed between the both ends, and both end pieces 33q and 33q of the caulking arm 33n are movable by the arc-shaped slit 33p. After the fine powder outlet member 33 is arranged in the main body casing 28, the fine powder outlet member 33 is inserted into the fixing member 33A, and the circular rod 33i is fixed to the upper surface of the top cover 28a. Thus, if the handle 33B mounted on the caulking arm 33n is rotated, the both end pieces 33q and 33q operate so as to be close to each other, and the both end pieces 33q and 33q serve as the fine powder outlet member. The fine powder outlet member 33 is fastened and fixed to the fixing member 33A.

In the figure, reference numeral 33r denotes a rotating shaft provided in the handle 33B, and the rotating shaft 33r moves forward by the rotation of the handle 33B to clamp the crimping arm 33n.
A pipe 34A of the jet air flow intake device 34 is connected to a filter regulator 46 as shown in FIG. For example, a lever lock coupler 34C is connected to the pipe 34B of the jet air flow intake device 34 as shown in FIG. The lever lock coupler 34C is connected to the bottom of the tank 27 of the ultrafine grain crusher 26 via a different pipe or directly.

The bottom of the tank 27 is provided with a tank fixing frame 27A as a tank mounting portion. The tank fixing frame 27A supports the tank 27 and is fixed to a base 35a of a crushing device rotating member 35D provided in a caster 35 described later. ing. The tank fixing frame 27A has an insertion hole 27a in the substantially central portion thereof. For example, a different pipe 27b is attached to the insertion hole 27a and a hole formed in the bottom surface of the tank 27. The pipe 34A or 34B described above is connected. And if the base 35a of the said grinding | pulverization apparatus rotation member 35D rotates, according to this, the tank 27 and the main body casing 28 will rotate.

As shown in FIGS. 1 to 3, the jet air flow intake device 34 has a jet air flow from the pipe 34 </ b> A or 34 </ b> B, particularly in a wide range from 0.49 (MPa) to 1.47 (MPa), for example. Low and high pressure jet stream is introduced. Reference numeral 34f denotes a switching valve lever, which operates a valve installed in the pipe 34A or 34B to control the flow rate and pressure value of the jet airflow sent from the pipe 34A or 34B. In the example of FIG. 2, 27 b is a pipe for the tank fixing frame 27 </ b> A for fixing the tank 27 and the pipe 34 </ b> A (pipe 34 </ b> B) of the jet air flow intake device 34.

Reference numeral 35 denotes a caster, which includes a base portion 35A, a pulley 35B, one support portion 35C, the other support portion 35C, and a crushing device rotating member 35D. The crushing device rotating member 35D includes a base 35a. One rotary arm 35b and the other rotary arm 35c are provided. The one rotation arm 35b is attached to the upper end portion of one support portion 35C, and the other rotation arm 35c is attached to the upper end portion of the other support portion 35C. The one support portion 35C and the other support portion 35C are fixed to the base portion 35A of the caster 35 by tightening members 37 and 37 such as bolts by means of substantially T-shaped brackets 36 and 36, respectively.

Although not shown, a safety valve device having a function of releasing the jet airflow when the jet airflow sent to the pipes 34A and 34B of the jet airflow intake device 34 exceeds a predetermined pressure may be provided.

Next, the lever lock coupler 34C as a pipe connecting member will be described with reference to FIG. The lever lock coupler 34C is a component of the jet air flow intake device 34, and is between the pipe 34A and the pipe 27b provided in the fixed frame 27A at the bottom of the tank 27, or between the pipe 34B and the tank 27. This is a constituent member for interfacing with the piping 27b provided in the fixed frame body 27A at the bottom of the tube and facilitating coupling between the pipings. The lever lock coupler 34C is generally composed of one substantially cylindrical tube 34a, the other substantially cylindrical tube 34b, and a pair of lever pieces 34c. On the other hand, a male screw 34a1 is provided around the tip of the substantially cylindrical tube 34a. Further, pins 34a3 and 34a3 project from the left and right outer edge portions 34a2 and 34a2 of the one substantially cylindrical tube 34a, and a pair of lever pieces 34c and 34c are pivotally attached to the pins 34a3 and 34a3. is doing. The inner surfaces of the lever pieces 34c and 34c are formed as flat surfaces 34c1 and 34c1, and when the other substantially cylindrical tube body 34b is connected to the one substantially cylindrical tube body 34a, the other substantially cylindrical tube body is formed. The upper connecting end 34b1 of 34b is pressed, the ring-shaped sealing material 34d is compressed, and it has a function which connects both in an airtight state. Thus, the ring-shaped sealing material 34d is interposed between both of the other substantially cylindrical tubular bodies 34a and 34b. Further, the lower end of the other substantially cylindrical tube body 34b is provided with a claw 34b2 for connecting to the pipe 34A or 34B. In the drawing, 34e and 34e are rings provided in the pair of lever pieces 34c and 34c, and are used for gripping when operating the pair of lever pieces 34c and 34c.

When the connection between the one substantially cylindrical tube 34a and the other substantially cylindrical tube 34b is released, if the pair of lever pieces 34c and 34c are moved in the horizontal direction, the upper connection end 34b1 of the other substantially cylindrical tube 34b.
The other substantially cylindrical tube body 34b can be detached from the one substantially cylindrical tube body 34a, and when the two are connected, the pair of lever pieces 34c and 34c may be operated in reverse. .

Next, the rotation restricting member as a component in the ultrafine particle pulverizing apparatus according to the present invention will be described. The rotation restricting member 51 is rotatable to a rotation restricting plate 51A and the rotation restricting plate 51A to an upper end portion of one support portion 35C of the caster 35 and an upper end portion of one rotating arm 35b of the crushing device rotating member 35D. It is comprised with the shaft member 51B pivotally connected and connected to.
The rotation restricting plate 51A is provided with a guide pin 51a. The head of the guide pin 51a is locked in, for example, an arcuate guide hole 51b as shown in FIGS. 1 and 10, and the tip 51c is as shown in FIG. As shown in FIGS. 10 and 12, the guide pin 51a is guided to the guide hole 51b according to the rotation of the one rotary arm 35b. Rotate to within range, for example 90 °. In this way, as shown in FIG. 12, the opening 33a of the fine powder outlet member 33 can be arranged at a position parallel to the base portion 35A of the caster 35, and the worker can easily take out the pulverized material. be able to.

Next, the rotation drive member as a component in the ultrafine particle crusher according to the present invention will be described. The rotation drive member 52 is connected to the rotation shaft restricting portion 52A for allowing or stopping the rotation of the other rotation arm 35c of the crushing device turning member 35D, and connected to the rotation shaft 52a of the rotation shaft restricting portion 52A. A rotation lever 52B that rotates the arms 35b and 35c and a rotation control lever 52C that controls locking or unlocking of the rotation shaft restricting portion 52A are configured.
Note that the rotation restricting member 51 and the rotation driving member 52 described above fulfill their functions even if omitted as a configuration example of the embodiment.

The rotation drive member 52 is pivotally attached to the upper end portion of the other support portion 35C of the caster 35 and the upper end portion of the other rotation arm 35c of the crushing device rotation member 35D. As shown in FIG. 12, the rotation shaft restricting portion 52A has a lock / unlock portion 52b for stopping or releasing the rotation shaft 52a by rotating the rotation control lever 52C. The lock / unlock portion 52b is composed of, for example, a pair of tightening members, and the pair of tightening members is disposed in the lock / unlock portion 52b by the rotation operation of the rotation control lever 52C. The rotary shaft 52a is allowed to rotate or stopped by compressing or releasing the 52a. In order to rotate the main body casing 28 and the tank 27 approximately 90 ° as shown in FIGS. 11 to 12, first, the rotation control lever 52C is rotated to release (unlock) the lock / unlock portion 52b. Then, the rotation lever 52B is rotated clockwise, and after approximately 90 ° rotation, the rotation control lever 52C is reversely rotated to stop (lock) the lock / unlock portion 52b.

Next, the operation of the embodiment of the ultrafine particle pulverizing apparatus according to the present invention will be described.
When ultrafine particles are to be generated using the ultrafine particle crusher 26, a predetermined amount of the cobalt alloy material is first charged into the inlet hopper 32 for various pulverized raw materials, for example, cobalt alloy materials. . The inlet hopper 32 supplies the cobalt alloy material as a pulverized raw material into the inlet hopper 32 by a quantitative supply machine 41 according to an example of the ultrafine particle pulverizing system according to the present invention shown in FIG. Then, when a worker or the like operates the control panel 42, a control signal is transmitted to the fixed quantity supply machine 41 via a control line 42a connected to the fixed quantity supply machine 41, and the input amount of the pulverized raw material is determined. The

On the other hand, an air flow is sent from a high-pressure gas swirling jet mill 43 a shown in FIG. 9 and various air flows such as air and He gas are compressed to a low pressure or a high pressure by a compressor 43, and a receiver is received via a tube or a pipe 44. Flow to tank 45. The receiver tank 45 sends low and high pressure airflow to the filter regulator 46 via a tube or piping. Here, the compressor 43 is not dedicated to high pressure, but a low-pressure or low-pressure / high-pressure compressor is applied, and the compressor 43 has a feature that it is small in size and easy to operate and can be produced at low cost.

The filter regulator 46 introduces a low and high pressure air flow into the jet air flow intake device 34 shown in FIG. This low / high pressure airflow is compressed air, compressed inert gas, compressed He gas, or the like. Then, the low / high pressure airflow is sent into the tank 27 from the pipe 34 </ b> A and / or the pipe 34 </ b> B of the jet airflow intake device 34. As shown in FIG. 2, the low and high pressure airflow J flowing into the tank 27 is within a pressure value range of, for example, 0.49 to 1.47 (MPa), and as shown by the arrow J in FIG. 27, the inner wall of the first intermediate ring 28c1 of the main casing 28 through the bottom wall 28b of the main casing 28 and the inner wall surfaces 28A4 to 28A2 of the fourth or second intermediate rings 28c4 to 28c2 as the intermediate multi-layer ring 28c. It is sucked up to the surface portion 28A1 and is sent to the through holes 281j, 28j2, 28j3 drilled in the body rings 28B1, 28B2, 28B3, and the through holes 30k of the nine crushing nozzles 30A-30I and the flow of the ejector 30a It is sent to the hole 30m and sent to the high-pressure chamber 30g formed in the outer peripheral portion of the suction nozzle 30d. The high pressure chamber 30g has a nozzle hole in the gap between the tip end of the suction nozzle 30d and the base end of the ejector 30a, and the low and high pressure airflow J compressed in the nozzle hole is, for example, 0.05 ( mm), and clean outside air that has been removed from the filter 53 by the exterior mesh body 53f and the interior mesh body 53g passes through the through hole 53e of the support member 53A, and the shaft of the cylindrical wind tunnel portion 30b of the grinding nozzle 30 The external air flows through the core hole 30j and the suction nozzle 30d, and the flow of the low- and high-pressure airflow J discharged from the nozzle hole of the high-pressure chamber 30g, and the outside air is ejected from the airflow injection hole 30h of the suction nozzle 30d. A jet stream is sent to the cavity 29 via Then, for example, each of the nine crushing nozzles 30A to 30I is ejected all at once from the air flow injection hole 30h in the inward direction of the cavity 29 as a jet air flow. Here, the flow velocity of the jet airflow is about 343.4 m / sec in the case of air and about 1008.3 m / sec in the case of He gas, and vortex flows in the cavity 29 by this jet airflow. To do.

Then, various pulverized raw materials such as a cobalt alloy material are supplied from the inlet hopper 32 into the cylindrical wind tunnel portion 31c of the supply nozzle 31, that is, to the internal space, and the outside air controlled by the outside air intake amount adjuster 38 is supplied. The air is sucked into the cylindrical wind tunnel 31c of the nozzle 31.
Here, the low and high pressure airflow K shown in FIG. 2 fed into the tank 27 from the pipe 34A or 34B of the jet airflow intake device 34 is within the same pressure value range as the low and high pressure airflow J. 2, the tank 27, the bottom ring 28b of the main body casing 28, and the inner wall surfaces 28A4 to 28A2 of the fourth to second intermediate rings 28c4 to 28c2 as the intermediate multi-layer ring 28c are conducted. Then, the air is sucked up to the inner wall surface portion 28A1 of the main body casing 28 and is sent to the high pressure chamber 31g formed in the outer peripheral portion of the suction nozzle 31d of the supply nozzle 31 described above. The high pressure chamber 31g has a nozzle hole formed between the distal end portion of the suction nozzle 31d and the proximal end portion of the ejector 31a, and the low / high pressure air flow K compressed by the nozzle hole is, for example, 0.05 (mm). The external air flow accompanied by the pulverized raw material such as the cobalt alloy supplied from the supply nozzle 31 is restricted to the atmospheric pressure when passing through the nozzle hole, and the flow rate is as high as the speed of sound. And is fed from the discharge port of the ejector 31a to the cavity 29 in the intermediate multilayer ring 28c of the main body casing 28. Here, as shown in FIG. 2, a slightly slanted mountain-shaped protrusion is formed in the substantially central portion of the upper surface of the bottom liner 28 f of the main body casing 28, thereby acting to suck up the mixed pulverized flow strongly. The ultrafine particles of the pulverized raw material can be quickly taken out from the fine powder outlet member 33. Then, the jet air flow from the crushing nozzles 30A to 30I arranged in each of the first to third intermediate rings 28c1 to 28c3 as the intermediate multi-layer ring 28c and the air flow containing fine particles of the pulverized raw material are mixed and swirled, and the pulverization is performed. The raw material particles repeat the collision phenomenon, and further form fine particles and ultrafine particles. According to the experiment, the ultrafine particle pulverizer 26 can make the pulverized raw material charged into the inlet hopper 32 into ultrafine particles at once with a particle size of about 0.1 (μm) to 5 (μm). It was.

The ultrafine particles of the pulverized raw material generated in the cavity 29 formed in each of the first to third intermediate rings 28c1 to 28c3 as the intermediate multilayer ring 28c of the main casing 28 are fine powder as shown in FIG. It is collected in a collector 48 via a pipe or tube 47 connected to the outlet member 33, and is taken out and transported to a predetermined place as necessary. Further, a part of the low and high pressure airflow from the compressor 43 is discharged from the exhaust blower 50 to the outside through a piping or tubes 49, 49, the discharge amount of which is controlled by an adjustment valve. Here, the number of layers of the first to third intermediate rings 28c1 to 28c3 constituting the intermediate multi-layer ring 28c is arbitrary, and is arbitrarily selected and determined according to the ultrafine particle pulverization conditions of the pulverization raw material. The number of deployments of 30A to 30I is also arbitrarily selected and determined.
3, 10, 11, and 12, reference numeral 34 f denotes a switching valve lever, which operates a valve installed in the pipe 34 </ b> A or 34 </ b> B so that the flow rate and pressure value of the low / high pressure air flow in the pipe To control.

Next, an embodiment of the ultrafine particle grinding apparatus according to the present invention will be described with reference to FIG.
FIG. 12 is a position where the rotation control member 51 and the rotation drive member 52 are operated to rotate the main body casing 28 and the tank 27 from the setting positions of FIGS. 1, 10 and 11 to the setting positions of FIG. It is an example of a structure when set.

In this embodiment, the rotation control member 51 and the rotation drive member 52 are essential elements, and the direction of the opening 33a of the fine powder outlet member 33 is parallel to the base portion 35A of the caster 35, that is, in the horizontal direction. The body casing 28 and the tank 27 are rotated and set to set. In this way, it is possible for an operator to easily and quickly take out various pulverized raw materials pulverized into ultrafine particles in the cavity 29 in the intermediate multilayer ring 28c of the main body casing 28.

In the rotation control member 51, the rotation restricting plate 51A is provided with a guide pin 51a, and the head of the guide pin 51a is engaged with, for example, an arcuate guide hole 51b as shown in FIGS. As shown in FIG. 1, 51c is fixed to one rotating arm 35b configured to be rotatable, and the guide pin 51a is guided to the guide hole 51b in accordance with the rotation of the one rotating arm 35b, as shown in FIGS. As shown in Fig. 4, the rotation is made within a rotation allowable range, for example, 90 °. Further, the rotation drive member 52 has a lock / unlock portion 52b for stopping or releasing the rotation shaft 52a by the rotation operation of the rotation control lever 52C as shown in FIG. ing. The lock / unlock portion 52b is composed of, for example, a pair of tightening members, and the pair of tightening members is disposed in the lock / unlock portion 52b by the rotation operation of the rotation control lever 52C. The rotary shaft 52a is allowed to rotate or stopped by compressing or releasing the 52a.

Other components, operations, and the like are substantially the same as those in the above-described embodiment, and the same numbers and the same reference numerals are given, and descriptions thereof are omitted.

FIG. 1 is a front view of an ultrafine particle crusher according to the present invention. 2 is a cross-sectional view taken along the line AA in FIG. FIG. 3 is a plan view seen from the direction of arrow B in FIG. FIG. 3 is a horizontal sectional view showing an arrangement example of pulverizing nozzles, as viewed from the direction of the line CC in FIG. 1 in a state where an inlet hopper is cut. It is drawing which expanded the crushing nozzle provided with the filter applied to this invention, Comprising: It is a vertical sectional view of the arrow DD line direction of FIG. FIG. 6 is an enlarged vertical sectional view of a supply nozzle and an inlet hopper applied to the present invention. FIG. 7 is an enlarged perspective view showing a fixing member provided in a fine powder outlet member applied to the present invention. FIG. 8 is an enlarged perspective view of a lever lock coupler applied to the present invention in a vertical cross section. It is a block diagram which shows an example of the ultrafine particle grinding | pulverization system which concerns on this invention. It is the side view seen from the arrow MM line direction shown in FIG. It is the side view seen from the arrow PP line direction shown in FIG. It is an Example of the ultrafine-grain grinding | pulverization apparatus which concerns on this invention, Comprising: It is a side view at the time of rotating a main body casing and a tank substantially 90 degrees. It is a block diagram which is an example in the prior art, and shows the powder grinding | pulverization method using a jet mill. It is another example in a prior art, Comprising: It is a side view which shows the structural example of a grinder.

Explanation of symbols

26 Ultrafine grain crusher 27 Tank 27A Tank fixed frame 27a Tank insertion frame 27b Tank fixed frame pipe 28 Tank fixed frame piping 28 Main casing 28a Main casing top cover 28b Main casing bottom ring 28c Middle multi-layer ring 28c1 of the main casing First intermediate ring 28c2 of the intermediate multi-layer ring of the main casing Second intermediate ring 28c3 of the intermediate multi-layer ring of the main casing Third intermediate ring 28c4 of the intermediate multi-layer ring of the main casing Fourth intermediate ring 28d of intermediate multi-layer ring Main liner top liner 28e Main casing intermediate base 28f Main casing bottom liner 28g Bolt 28h Bolt insertion hole 28i Bolt insertion hole 28j1 Main casing Flow hole 28j2 of the first intermediate ring of the intermediate multi-layer ring Flow hole 28j3 of the second intermediate ring of the intermediate multi-layer ring of the main casing Casing holes 28A1 to 28A4 of the third intermediate ring of the intermediate multi-layer ring of the main casing Inner wall portions 28B1 to 28B4 of the intermediate multi-layer ring Body rings 28C1 to 28C4 of the intermediate multi-layer ring of the main body casing Ring liner 28D of the intermediate multi-layer ring of the main body casing Main casing sealing material 28E1 First partition plate 28E2 of the main body casing Main body casing 2nd partition plate N1 Boundary line N2 of main body casing Boundary line 29 of main body casing Cavity 30 of main body casing Crushing nozzles 30A to 30I provided with filter First to ninth crushing nozzles 30a The tip of the crushing nozzle (ejector) )
30b Grinding nozzle cylindrical wind tunnel 30c Grinding nozzle cylindrical wind tunnel portion 30d Grinding nozzle suction nozzle 30e Grinding nozzle ejector case 30f Grinding nozzle body mounting screw 30g Grinding nozzle high-pressure chamber 30h Grinding nozzle air flow injection Hole 30i Male screw 30j of crushing nozzle Axis hole 30k in cylindrical wind tunnel portion of crushing nozzle Through hole 30m of ejector case of crushing nozzle Flowing hole 31 at tip of crushing nozzle Supply nozzle 31a Tip of supply nozzle (ejector)
31b Supply nozzle inlet side horizontal opening 31c Supply nozzle cylindrical wind tunnel 31d Supply nozzle suction nozzle 31e Supply nozzle ejector case 31f Supply nozzle body mounting screw 31g Supply nozzle high pressure chamber 31h Ferrule 31i Supply nozzle inlet side Vertical opening 31j Ferrule 31k Wind tunnel base end 32 Inlet hopper 32a Inlet body 33 Fine powder outlet member 33A Fine powder outlet member fixing member 33a Fine powder outlet member opening 33b Fine powder outlet member engagement Claw 33c Outer cylinder 33d of fine powder outlet member First partition ring 33e of fine powder outlet member Second partition ring 33f of fine powder outlet member Fastening parts of first and second partition rings of fine powder outlet member 33g Frame fixing portion 33h of fine powder outlet member fixing member Fine powder outlet member Fixing member caulking portion 33i Fixing member circular rod 33j of fine powder outlet member Fixing bolt 33k of fixing member of fine powder outlet member Through hole 33m of fixing member of fine powder outlet member Fixing of fine powder outlet member Base ring 33n of the caulking portion of the member Clamping arm 33p of the caulking portion of the fixing member of the fine powder outlet member Arc-shaped slit 33q of the caulking portion of the fixing member of the fine powder outlet member Fixing of the fine powder outlet member Both ends of the caulking arm of the caulking portion of the member 33B Handle 33r Rotating shaft 34 Jet airflow intake device 34A Pipe of the jet airflow intake device 34B Pipe of the jet airflow intake device 34C Lever lock of the jet airflow intake device Coupler 34a One substantially cylindrical tube of lever lock coupler 34a1 of jet air flow intake device One substantially cylindrical tube of lever lock coupler of jet air flow intake device Male screw 34a2 Left and right outer edge 34a3 of one substantially cylindrical tube of lever lock coupler of jet air flow intake device One pin 34b of one substantially cylindrical tube of lever lock coupler of jet air flow intake device Lever lock of jet air flow intake device The other substantially cylindrical tube 34b1 of the coupler The upper connection end 34b2 of the other substantially cylindrical tube of the lever lock coupler of the jet air flow intake device The claw 34c of the other substantially cylindrical tube of the lever lock coupler of the jet air flow intake device A pair of lever pieces 34c1 of the lever lock coupler of the apparatus A flat surface 34d of the pair of lever pieces of the lever lock coupler of the jet air flow intake device The ring-shaped sealing material 34e of the lever lock coupler of the jet air flow intake device The lever of the jet air flow intake device The ring 34f of the pair of lever pieces of the lock coupler The lever 35 of the switching valve Star 35A Caster base 35B Caster pulley 35C One supporter 35D Caster crushing device rotating member 35a Caster crushing device rotating member base 35b Caster crushing device rotating member one rotating arm 35c Caster The other rotating arm 36 of the crushing device rotating member 36 of the caster, the substantially T-shaped bracket 37 of the other supporting portion of the caster 37 The tightening member 38 of the substantially T-shaped bracket of the one of the casters and the other supporting portion 38a Outer air suction amount adjuster outer case 38b Outside air suction amount adjuster inner case 38c Outside air suction amount adjuster outer air suction hole 38d Outside air suction amount adjuster fixing knob 39 Handle 39a Handle bolt 40 Pressure gauge 40a Pressure gauge installation Component 41 Constant supply machine 42 Control panel 42a Control line 43 Compressor -43a High-pressure gas swirling jet mill 44 Piping (tube)
45 Receiver tank 46 Filter regulator 47 Piping (tube)
48 Collector 49 Piping (tube)
50 Exhaust blower 51 Rotation restricting member 51A Rotation restricting plate 51a Rotation restricting member rotation restricting plate guide pin 51b Rotation restricting member rotation restricting plate arc-shaped guide hole 51c Rotation restricting member rotation restricting plate guide pin Rotation member 52A Rotation drive member 52A Rotation drive member rotation shaft restriction part 52a Rotation drive member rotation shaft restriction part rotation shaft 52b Rotation drive member rotation shaft restriction part lock / unlock part 52B Rotation drive member rotation lever 52C Rotation drive member rotation control lever 53 Filter 53A Filter support member 53a Filter first stage cylindrical part 53b Filter first stage cylindrical part male screw 53c Filter second stage cylindrical part 53d Base end portion 53e of second cylindrical portion of filter 53e Through hole 53f of filter support member Filter body Base 53C body of the filter of the interior mesh body 53B filter of the body of the exterior mesh body 53g filter

Claims (7)

A main body casing provided with a tank into which a low and high pressure airflow is sent from a compressor, a pulverizing nozzle fixed to the upper part of the tank and fed with the low and high pressure airflow, and a supply nozzle for supplying pulverized raw materials; In an ultrafine particle crushing device comprising a fine powder take-out member arranged on the upper surface, the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multilayer ring is interposed between them. The crushing nozzle includes a filter that protrudes the base end of the main body casing to the outside and takes in the outside air to the base end, and is attached to the inner wall portion of the main body casing, and the front end of the crushing nozzle is disposed inside the main body casing. A plurality or a plurality of protrusions are arranged in a predetermined angle toward the inward direction of the hollow portion, and the supply nozzle is an inner wall portion of the main body casing. Adjust - inhaled outside air to supply the pulverized starting material by Rett hopper, ultrafine particle crushing apparatus characterized by being projected disposed toward the inner direction of the hollow portion of the body casing and the tip. A jet air flow intake device in which a low and high pressure air flow is sent from a compressor and configured by a pipe, and a tank that sucks the low and high pressure air flow sent by connecting the jet air flow intake device through an inner wall surface; A main body casing mounted on the upper portion of the tank, a fine powder take-out member disposed on the upper surface of the main body casing, and the main body casing includes a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate therebetween A multi-layer ring is interposed, and the crushing nozzle includes a filter that protrudes the base end of the main body casing to the outside and takes outside air into the base end, and is attached to the inner wall portion of the main body casing. A plurality of or a plurality of tips are arranged to project at a predetermined angle toward the inside of the hollow portion in the main body casing, and the supply nozzle is connected to the main body casing. The pulverized raw material supplied from the inlet hopper is supplied to the wall, and its tip protrudes inward of the cavity of the main body casing, and the outside air suction amount adjuster is fixed to the cylindrical wind tunnel of the supply nozzle. -An ultra-fine grain crusher characterized by being arranged. A jet air flow intake device in which a low and high pressure air flow is sent from a compressor and configured by a pipe, and a tank that sucks the low and high pressure air flow sent by connecting the jet air flow intake device through an inner wall surface; A main body casing mounted on the upper part of the tank, a fine powder take-out member arranged on the upper surface of the main body casing, a pulverizer rotating member fixed to the bottom of the tank and rotating the pulverizer at a predetermined position. A caster that supports the crushing device rotating member and enables the crushing device to move to a predetermined position, and the main body casing is composed of a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate A multi-layer ring is interposed, and the crushing nozzle includes a filter that projects the base end of the main body casing to the outside and takes in the outside air to the base end. The main body casing is mounted on the inner wall of the main body casing, and the tip of the main body casing is protruded and arranged at a predetermined angle toward the inner direction of the hollow portion of the main body casing. The supply nozzle is disposed on the inner wall of the main body casing. The pulverized raw material is supplied by an inlet hopper, and the tip of the pulverized raw material is protruded inward of the hollow portion of the main body casing, and the outside air suction amount adjuster is fixed to the cylindrical wind tunnel portion of the supply nozzle. An ultra-fine grain crusher characterized by being arranged. A jet air flow intake device in which a low and high pressure air flow is sent from a compressor and configured by a pipe, and a tank that sucks the low and high pressure air flow sent by connecting the jet air flow intake device through an inner wall surface; It consists of a main body casing mounted on the upper part of the tank, a fine powder take-out member disposed on the upper surface of the main body casing, a tank mounting part fixed to the bottom of the tank and a crushing device, while rotating the other rotating arm. A crusher comprising a crushing device rotating member, one supporting portion mounted on one rotating arm, the other supporting portion mounted on the other rotating arm, and a base portion to which the both supporting portions are fixed; A rotation restricting member for restricting the rotation of the crushing device to the support portion, a rotation driving member for setting the rotational positioning of the crushing device to the other support portion, and the main body casing. It is composed of a top cover on the surface side and a bottom ring on the bottom surface side, and an intermediate multilayer ring is interposed between them, and the pulverizing nozzle projects its base end outward of the main body casing. A filter that takes in outside air at the end is mounted on the inner wall portion of the main body casing, and the front end of the filter is arranged in a projecting manner by setting a plurality or many at a predetermined angle toward the inner direction of the hollow portion in the main body casing. The supply nozzle is an inner wall portion of the main body casing and supplies the pulverized raw material by the inlet hopper, and the tip of the supply nozzle protrudes inward of the hollow portion of the main body casing, and the cylindrical wind tunnel of the supply nozzle An ultra-fine particle crusher characterized in that an outside air suction amount adjuster is fixed and arranged in the section. The rotation restricting member is composed of a rotation restricting plate fixed to a side surface of the one supporting portion and forming a guide hole, and a guide pin inserted into the guide hole and fixed to one rotating arm. The ultrafine particle pulverizing apparatus according to claim 4. The rotation drive member is fixed to a side surface of the other support portion and is connected to one or the other rotation arm to allow or stop rotation of the rotation shaft, and to lock or unlock the rotation shaft restriction portion. 5. The ultrafine grain crusher according to claim 4, comprising a rotation control lever for controlling the lock and a rotation lever connected to the rotation shaft and rotating the other rotation arm. A jet air flow intake device in which a low and high pressure air flow is sent from a compressor and configured by a pipe, and a tank that sucks the low and high pressure air flow sent by connecting the jet air flow intake device through an inner wall surface; A main body casing mounted on the upper portion of the tank; a fine powder outlet member having an opening projecting from the upper surface of the main body casing and configured by an overlapping cylinder; and a fine powder outlet member mounted on the upper surface of the main body casing and A crushing nozzle comprising a fastening member for positioning and setting the outlet member in a vertical direction, and the main body casing comprising a top cover on the upper surface side and a bottom ring on the lower surface side, and an intermediate multi-layer ring interposed therebetween. Includes a filter that protrudes outward from the main casing and takes in outside air, and is attached to the inner wall of the main casing, and the distal end of the filter is attached to the main casing. A plurality or a plurality of protrusions are arranged in a predetermined angle toward the inner direction of the hollow portion in the sing, and the supply nozzle is an inner wall portion of the main body casing and supplies a pulverized raw material by an inlet hopper, An ultrafine particle pulverizing apparatus, characterized in that a front end protrudes inwardly of the hollow portion of the main body casing and an outside air suction amount adjuster is fixed and arranged in a cylindrical wind tunnel portion of the supply nozzle.

Images