JP2012228631A - Falling-type powder treatment apparatus - Google Patents

Falling-type powder treatment apparatus Download PDF

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JP2012228631A
JP2012228631A JP2011096737A JP2011096737A JP2012228631A JP 2012228631 A JP2012228631 A JP 2012228631A JP 2011096737 A JP2011096737 A JP 2011096737A JP 2011096737 A JP2011096737 A JP 2011096737A JP 2012228631 A JP2012228631 A JP 2012228631A
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powder
raw material
heating unit
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falling
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JP5730656B2 (en
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Seiji Yoshimoto
誠司 吉本
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Chugai Ro Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a falling-type powder treatment apparatus which is constituted such that when powder to be a raw material is supplied to a heating part from a raw material supply part, the falling powder is heat-treated in the heating part and then the heat-treated powder is cooled in a cooling part, even when kinds, specific gravity and particle size and the like of the powder to be the raw material are different from one another, the time to heat-treat the powder in the heating part while dropping it is suitably adjusted while being made to correspond to the powder to be the raw material, and various kinds of powder to be the raw material can be suitably heat-treated.SOLUTION: The falling-type powder treatment apparatus includes: the raw material supply part 10 for supplying the powder W to be the raw material; the heating part 20 for heat-treating the powder which is supplied from the raw material supply part and dropped therein; and the cooling part 30 for cooling the heat-treated powder. The falling speed of the powder falling in the heating part is controlled by supplying a gas from the lower side and/or upper side of the heating part.

Description

本発明は、炭素粉末やフェライト粉末等の原料となる粉体を原料供給部から加熱部に供給し、この加熱部内において落下される粉体を加熱処理させた後、このように加熱部内において加熱処理された粉体を冷却部において冷却させるようにした落下式粉体処理装置に関するものである。特に、原料となる粉体の種類、比重、粒径等が異なる場合においても、原料となる粉体に対応させて、この粉体を加熱部内において落下させながら加熱処理する時間を適切に調整できるようにした点に特徴を有するものである。   In the present invention, powder as a raw material such as carbon powder and ferrite powder is supplied from the raw material supply unit to the heating unit, and the powder dropped in the heating unit is heat-treated, and then heated in the heating unit in this way. The present invention relates to a drop-type powder processing apparatus in which processed powder is cooled in a cooling section. In particular, even when the type, specific gravity, particle size, etc., of the raw material powder are different, it is possible to appropriately adjust the heat treatment time while dropping this powder in the heating unit in correspondence with the raw material powder. It has the feature in the point made like this.

炭素粉末やフェライト粉末等の原料となる粉体を加熱処理するにあたっては、原料となる粉体をこう鉢に入れて、加熱炉内で加熱処理させるようにしたものの他に、特許文献１，２等に示されるように、原料となる粉体を原料供給部から加熱部に供給し、このように供給された粉体を加熱部内において自由落下させながら加熱処理するようにした落下式粉体処理装置が使用されている。   In heat-treating the raw material powder such as carbon powder and ferrite powder, in addition to those in which the raw material powder is put in a mortar and heat-treated in a heating furnace, Patent Documents 1 and 2 As shown in the above, a drop type powder treatment in which powder as a raw material is supplied from the raw material supply unit to the heating unit, and the supplied powder is subjected to heat treatment while freely dropping in the heating unit. The device is in use.

しかし、このように原料となる粉体を加熱部内において自由落下させるようにした場合、原料となる粉体の比重や粒径等によって加熱部内を落下する粉体の落下速度が異なり、加熱部において粉体を加熱処理する時間を適切に調整することができず、また原料となる粉体の種類に応じて、加熱部において加熱処理する時間を適切に調整することもできないという問題があった。   However, when the raw material powder is allowed to fall freely in the heating part in this way, the falling speed of the powder falling in the heating part varies depending on the specific gravity, particle size, etc. of the raw material powder. There has been a problem that the time for heat treatment of the powder cannot be adjusted appropriately, and the time for heat treatment in the heating section cannot be adjusted appropriately depending on the kind of powder as a raw material.

また、上記の特許文献１においては、大豆やあずき等の粒径が大きい原料の場合、自由落下する速度が速くなって十分な加熱処理を行うことができなくなるのを防止するため、筒状になった加熱部内にロート状やカサ状のバッフルを設け、このバッフルの傾斜に沿って上記の原料を落下させるようにして、加熱処理する時間を長くすることが提案されている。   Moreover, in said patent document 1, in the case of raw materials with large particle diameters, such as a soybean and azuki, in order to prevent that it becomes impossible to perform sufficient heat processing because the speed of free fall becomes high, and it becomes cylindrical. It has been proposed to lengthen the heat treatment time by providing a funnel-shaped or baffle-shaped baffle in the heated part and dropping the raw material along the inclination of the baffle.

しかし、このように加熱部内にロート状やカサ状のバッフルを設けた落下式粉体処理装置において、比重や粒径等が小さい粉体を加熱処理する場合には、粉体を加熱処理する時間が長くなりすぎたり、粉体がバッフルに付着して凝集したりするという問題があり、原料となる粉体の比重や粒径等に応じて、加熱部において粉体を加熱処理する時間を適切に調整したり、また原料となる粉体の種類に応じて、加熱部において加熱処理する時間を適切に調整したりすることはできなかった。   However, when a powder having a small specific gravity, particle size, etc. is heat-treated in a drop-type powder treatment apparatus having a funnel-like or baffle-like baffle in the heating section in this way, the time for heat-treating the powder Is too long, or the powder adheres to the baffle and agglomerates. Depending on the specific gravity, particle size, etc. of the raw material powder, the time for heat treatment of the powder in the heating part is appropriate. In addition, it was not possible to properly adjust the time for the heat treatment in the heating unit according to the type of powder used as a raw material.

特開昭６３−７９５６７号公報JP-A-63-79567 特開２００９−８４１２５号公報JP 2009-84125 A

本発明は、原料となる粉体を原料供給部から加熱部に供給し、この加熱部内において落下される粉体を加熱処理させた後、このように加熱部内において加熱処理された粉体を冷却部において冷却させるようにした落下式粉体処理装置における上記のような問題を解決することを課題とするものである。   In the present invention, powder as a raw material is supplied from a raw material supply unit to a heating unit, and the powder dropped in the heating unit is heat-treated, and the powder thus heat-treated in the heating unit is cooled. It is an object of the present invention to solve the above-described problems in a drop-type powder processing apparatus that is cooled in a section.

すなわち、本発明は、上記のような落下式粉体処理装置において、原料となる粉体の種類、比重、粒径等が異なる場合においても、原料となる粉体に対応させて、この粉体を加熱部内において落下させながら加熱処理する時間を適切に調整して、原料となる様々な粉体を適切に加熱処理できるようにすることを課題とするものである。   That is, according to the present invention, in the above-described drop-type powder processing apparatus, even if the kind, specific gravity, particle size, etc. of the powder as the raw material are different, this powder is made to correspond to the powder as the raw material. It is an object to appropriately adjust the time for the heat treatment while dropping the powder in the heating section so that various powders as raw materials can be appropriately heat-treated.

本発明においては、上記のような課題を解決するため、原料の粉体を供給する原料供給部と、この原料供給部から供給されて落下される粉体を加熱処理する加熱部と、加熱処理された粉体を冷却させる冷却部とを備えた落下式粉体処理装置において、上記の加熱部の下側及び／又は上側からガスを供給させて加熱部内を落下する粉体の落下速度を制御するようにした。   In the present invention, in order to solve the problems as described above, a raw material supply unit that supplies raw material powder, a heating unit that heats and drops the powder supplied from the raw material supply unit, and heat treatment In a drop type powder processing apparatus equipped with a cooling unit for cooling the powder that has been discharged, gas is supplied from the lower side and / or upper side of the heating unit to control the falling speed of the powder falling in the heating unit I tried to do it.

そして、このように加熱部の下側及び／又は上側からガスを供給させて加熱部内を落下する粉体の落下速度を制御するにあたっては、加熱部の下側及び／又は上側にガスを供給するガス供給装置と、このガス供給装置から加熱部の下側及び／又は上側に供給するガス量を制御する制御装置を設けるようにする。   In this way, when the gas is supplied from the lower side and / or the upper side of the heating unit to control the falling speed of the powder falling in the heating unit, the gas is supplied to the lower side and / or the upper side of the heating unit. A gas supply device and a control device for controlling the amount of gas supplied from the gas supply device to the lower side and / or the upper side of the heating unit are provided.

ここで、上記の制御装置においては、加熱部内の圧力に基づいて、ガス供給装置から加熱部の下側及び／又は上側に供給するガス量を制御させるようにすることが好ましい。   Here, in the above control device, it is preferable that the amount of gas supplied from the gas supply device to the lower side and / or the upper side of the heating unit is controlled based on the pressure in the heating unit.

また、加熱部内おいて粉体を加熱処理した場合に発生する排ガスを粉体と分離させて排出させるようにするため、加熱部の上側に加熱部内の排ガスを外部に排出させる排ガス部を設け、またこの排ガスに含まれる有害成分を除去するように、この排ガス部に排ガスを無害化させる排ガス処理装置を設けることが好ましい。   Further, in order to separate and discharge the exhaust gas generated when the powder is heat-treated in the heating unit, an exhaust gas unit for discharging the exhaust gas in the heating unit to the outside is provided on the upper side of the heating unit, Further, it is preferable to provide an exhaust gas treatment device for detoxifying the exhaust gas in the exhaust gas part so as to remove harmful components contained in the exhaust gas.

また、このように加熱部の上側に加熱部内の排ガスを外部に排出させる排ガス部を設けた場合において、この排ガス部に加熱部内の圧力を測定するための圧力測定器を設け、この圧力測定器により測定された加熱部内の圧力に基づいて、上記の制御装置により、ガス供給装置から加熱部の下側及び／又は上側に供給するガス量を制御させるようにすることができる。   In addition, when the exhaust gas part for exhausting the exhaust gas in the heating part to the outside is provided on the upper side of the heating part in this way, a pressure measuring device for measuring the pressure in the heating part is provided in the exhaust gas part. Based on the pressure in the heating unit measured by the above, the amount of gas supplied from the gas supply device to the lower side and / or the upper side of the heating unit can be controlled by the control device.

本発明における落下式粉体処理装置においては、原料供給部から供給されて落下される粉体を加熱部内において加熱処理するにあたり、上記のように加熱部の下側及び／又は上側からガスを供給させて加熱部内を落下する粉体の落下速度を制御するようにしたため、原料となる粉体の種類、比重、粒径等が異なる場合においても、原料となる粉体に対応させて、この粉体を加熱部内において落下させながら加熱処理する時間を簡単かつ適切に調整することができるようになる。   In the drop type powder processing apparatus of the present invention, when the powder supplied from the raw material supply unit and dropped is heated in the heating unit, gas is supplied from the lower side and / or the upper side of the heating unit as described above. Therefore, even when the kind, specific gravity, particle size, etc. of the raw material powder are different, this powder is made to correspond to the raw material powder. The time for the heat treatment while dropping the body in the heating unit can be adjusted easily and appropriately.

この結果、本発明における落下式粉体処理装置においては、原料となる様々な粉体に対応させて加熱処理する時間を調整し、各粉体に対して適切な加熱処理が行えるようになる。   As a result, in the drop type powder processing apparatus according to the present invention, the time for heat treatment is adjusted in accordance with various powders as raw materials, and appropriate heat treatment can be performed on each powder.

本発明の一実施形態に係る落下式粉体処理装置を示した概略説明図である。It is the schematic explanatory drawing which showed the drop type powder processing apparatus which concerns on one Embodiment of this invention.

以下、本発明の実施形態に係る落下式粉体処理装置を添付図面に基づいて具体的に説明する。なお、本発明に係る落下式粉体処理装置は、下記の実施形態に示したものに限定されず、発明の要旨を変更しない範囲において、適宜変更して実施できるものである。   Hereinafter, a drop-type powder processing apparatus according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. The falling powder processing apparatus according to the present invention is not limited to the one shown in the following embodiment, and can be implemented with appropriate modifications within a range not changing the gist of the invention.

この実施形態の落下式粉体処理装置においては、図１に示すように、原料供給部１０に設けられた原料供給装置１１から加熱処理する原料となる粉体Ｗをふるい装置１２に導き、このふるい装置１２により凝集している粉体Ｗを解砕させて、粉体Ｗを分散させるようにしている。   In the drop type powder processing apparatus of this embodiment, as shown in FIG. 1, the powder W, which is a raw material to be heat-treated, is guided to a sieving apparatus 12 from a raw material supply apparatus 11 provided in the raw material supply unit 10. The agglomerated powder W is crushed by the sieving device 12 to disperse the powder W.

そして、このように分散させた粉体Ｗを、原料供給部１０における案内管１３を通して筒状になった加熱部２０内に導き、この加熱部２０内において落下させるようにしている。   The powder W dispersed in this way is guided into the cylindrical heating unit 20 through the guide tube 13 in the raw material supply unit 10 and dropped in the heating unit 20.

ここで、この加熱部２０の外周側には加熱装置２１が設けられており、この加熱装置２１により加熱部２０内を加熱させ、この加熱部２０内を落下する上記の粉体Ｗを加熱処理するようにしている。   Here, a heating device 21 is provided on the outer peripheral side of the heating unit 20. The heating device 21 heats the inside of the heating unit 20 and heats the powder W falling in the heating unit 20. Like to do.

そして、このように加熱処理されて落下する粉体Ｗを、上記の加熱部２０内からその下方に設けられた冷却部３０内に導いて冷却させるようにしている。   Then, the powder W that has been heat-treated in this way and falls is guided from the heating unit 20 to the cooling unit 30 provided below to be cooled.

ここで、この実施形態においては、この冷却部３０内に傘状になった案内部材３１を設け、この冷却部３０内を落下する上記の粉体Ｗをこの案内部材３１に接触させて冷却させると共に、この案内部材３１により上記の粉体Ｗを冷却部３０の内壁面に導き、この内壁面との接触によって上記の粉体Ｗを効率よく冷却させるようにしている。   Here, in this embodiment, an umbrella-shaped guide member 31 is provided in the cooling unit 30, and the powder W falling in the cooling unit 30 is brought into contact with the guide member 31 to be cooled. At the same time, the powder W is guided to the inner wall surface of the cooling unit 30 by the guide member 31, and the powder W is efficiently cooled by contact with the inner wall surface.

そして、この実施形態においては、粉体Ｗの処理目的に応じて、窒素，空気，水素，炭化水素等の各種のガスを供給するガス供給装置４０を設け、このガス供給装置４０から上記のガスを、第１供給路４１ａを通して上記の冷却部３０内に導き、このように冷却部３０内に導かれたガスを上記の加熱部２０の下側から加熱部２０内に導くようにすると共に、第２供給路４１ｂを通して上記の原料供給部１０に導き、上記のふるい装置１２により分散されて案内管１３に導かれた粉体Ｗをこのガスによって加熱部２０内に送り出すようにしている。   In this embodiment, a gas supply device 40 that supplies various gases such as nitrogen, air, hydrogen, and hydrocarbons is provided according to the processing purpose of the powder W, and the above gas is supplied from the gas supply device 40. Is introduced into the cooling unit 30 through the first supply path 41a, and the gas thus introduced into the cooling unit 30 is guided from the lower side of the heating unit 20 into the heating unit 20. The powder W guided to the raw material supply unit 10 through the second supply path 41b and dispersed by the sieve device 12 and guided to the guide tube 13 is sent out into the heating unit 20 by this gas.

また、上記の第１供給路４１ａに第１流量調整弁４２ａを設けると共に、上記の第２供給路４１ｂに第２流量調整弁４２ｂを設け、この第１流量調整弁４２ａと第２流量調整弁４２ｂとを制御装置４３により制御し、第１供給路４１ａを通して上記の冷却部３０内から加熱部２０内に導かれるガスの量を調整すると共に、第２供給路４１ｂを通して上記の原料供給部１０における案内管１３に導かれるガスの量を調整するようにしている。   In addition, a first flow rate adjustment valve 42a is provided in the first supply path 41a, and a second flow rate adjustment valve 42b is provided in the second supply path 41b, and the first flow rate adjustment valve 42a and the second flow rate adjustment valve are provided. 42b is controlled by the control device 43 to adjust the amount of gas guided from the cooling unit 30 into the heating unit 20 through the first supply path 41a and the raw material supply unit 10 through the second supply path 41b. The amount of gas guided to the guide tube 13 is adjusted.

また、この実施形態においては、上記の加熱部２０の上側に加熱部２０内の排ガスを外部に排出させる排ガス部５０を設け、この排ガス部５０に、上記の排ガスに含まれる有害成分を除去して排ガスを無害化させる排ガス処理装置５１を設けている。   Further, in this embodiment, an exhaust gas part 50 for exhausting the exhaust gas in the heating part 20 to the outside is provided above the heating part 20, and harmful components contained in the exhaust gas are removed from the exhaust gas part 50. An exhaust gas treatment device 51 for detoxifying the exhaust gas is provided.

また、この実施形態においては、上記の排ガス部５０に、上記の加熱部２０内の圧力を測定するための圧力測定器５２を設け、この圧力測定器５２によって測定された加熱部２０内の圧力を上記の制御装置４３に出力し、上記のように第１供給路４１ａを通して上記の冷却部３０内から加熱部２０内に導かれるガスの量を調整すると共に、第２供給路４１ｂを通して上記の原料供給部１０における案内管１３に導かれるガスの量を調整するようにしている。   In this embodiment, the exhaust gas unit 50 is provided with a pressure measuring device 52 for measuring the pressure in the heating unit 20, and the pressure in the heating unit 20 measured by the pressure measuring device 52 is provided. Is output to the control device 43, and the amount of gas guided from the cooling unit 30 to the heating unit 20 through the first supply path 41a as described above is adjusted, and the above-described operation is performed through the second supply path 41b. The amount of gas guided to the guide tube 13 in the raw material supply unit 10 is adjusted.

ここで、粉体Ｗの落下速度や落下時間を加熱中に実際に測定することは非常に困難であるが、このように加熱部２０内の圧力に基づいて、制御装置４３により、冷却部３０や案内管１３から加熱部２０内に導かれるガスの量を調整すると、粉体Ｗの加熱処理条件の調整や再現が可能になる。   Here, it is very difficult to actually measure the falling speed and the falling time of the powder W during heating. Thus, based on the pressure in the heating unit 20, the control unit 43 controls the cooling unit 30. If the amount of gas introduced from the guide tube 13 into the heating unit 20 is adjusted, the heat treatment conditions for the powder W can be adjusted and reproduced.

また、この実施形態においては、上記の加熱部２０や排ガス部５０の周囲に断熱材Ｄを設けている。   Further, in this embodiment, the heat insulating material D is provided around the heating unit 20 and the exhaust gas unit 50.

そして、この実施形態の落下式粉体処理装置によって粉体Ｗを加熱処理するにあたり、粉体Ｗを加熱部２０内において加熱処理する時間を長くする場合には、上記の制御装置４３によって上記の第１流量調整弁４２ａと第２流量調整弁４２ｂとを制御し、上記の第１供給路４１ａを通して上記の冷却部３０内から加熱部２０内に導かれるガスの量を多くする一方、上記の第２供給路４１ｂを通して原料供給部１０における案内管１３に導かれるガスの量を少なくし、或いはガスを導かないようにする。このようにすると、比重や粒径が大きくて加熱部２０内において自由落下する速度が速い粉体Ｗであっても、上記の冷却部３０内から加熱部２０内に導かれるガスによってその落下速度が遅くなり、粉体Ｗを加熱部２０内において加熱処理する時間を長くすることができる。また、自由落下する速度が遅い粉体Ｗを用いた場合において、さらに落下速度を遅くすることもできる。   When the powder W is heat-processed by the drop-type powder processing apparatus of this embodiment, when the time during which the powder W is heat-processed in the heating unit 20 is lengthened, the control device 43 performs the above-described process. The first flow rate adjusting valve 42a and the second flow rate adjusting valve 42b are controlled to increase the amount of gas introduced from the cooling unit 30 into the heating unit 20 through the first supply path 41a. The amount of gas guided to the guide tube 13 in the raw material supply unit 10 through the second supply path 41b is reduced or no gas is guided. In this way, even if the powder W has a large specific gravity and a large particle size, and the free fall speed in the heating unit 20 is high, the falling speed of the powder W by the gas guided from the cooling unit 30 into the heating unit 20 As a result, the time during which the powder W is heat-treated in the heating unit 20 can be lengthened. Further, when the powder W having a slow free fall speed is used, the fall speed can be further reduced.

一方、粉体Ｗを加熱部２０内において加熱処理する時間を短くする場合には、上記の制御装置４３によって上記の第１流量調整弁４２ａと第２流量調整弁４２ｂとを制御し、上記の第１供給路４１ａを通して上記の冷却部３０内から加熱部２０内に導かれるガスの量を少なくし、或いはガスを導かないようにする一方、上記の第２供給路４１ｂを通して原料供給部１０における案内管１３に導かれるガスの量を多くする。このようにすると、比重や粒径が小さくて加熱部２０内において自由落下する速度が遅い粉体Ｗであっても、上記の案内管１３に導かれるガスによって、加熱部２０内において落下する速度が速くなり、粉体Ｗを加熱部２０内において加熱処理する時間を短くすることができる。また、自由落下する速度が速い粉体Ｗを用いた場合において、さらに落下速度を速くすることもできる。   On the other hand, in order to shorten the time for heating the powder W in the heating unit 20, the control device 43 controls the first flow rate adjustment valve 42a and the second flow rate adjustment valve 42b, and The amount of gas guided from the cooling unit 30 to the heating unit 20 through the first supply path 41a is reduced or the gas is not guided, while the raw material supply unit 10 through the second supply path 41b. The amount of gas guided to the guide tube 13 is increased. In this way, even if the powder W has a small specific gravity and a small particle size and a slow free fall in the heating unit 20, the powder W is dropped in the heating unit 20 by the gas guided to the guide tube 13. And the time during which the powder W is heat-treated in the heating unit 20 can be shortened. In addition, in the case of using the powder W that has a fast free fall speed, the fall speed can be further increased.

このため、この実施形態の落下式粉体処理装置においては、原料となる粉体Ｗの種類、比重、粒径等が異なる場合においても、原料となる粉体Ｗに対応させて、この粉体Ｗを加熱部２０内において落下させながら加熱処理する時間を簡単かつ適切に調整することができ、原料となる様々な粉体Ｗを適切に加熱処理できるようになる。   For this reason, in the drop-type powder processing apparatus of this embodiment, even when the kind, specific gravity, particle size, and the like of the powder W as a raw material are different, this powder is made to correspond to the powder W as a raw material. The time for heat treatment while dropping W in the heating unit 20 can be adjusted easily and appropriately, and various powders W as raw materials can be appropriately heat-treated.

なお、上記のガス供給装置４０から供給するガスの種類は特に限定されず、空気や窒素などの一般に使用されるガスの他に、粉体Ｗと反応して粉体Ｗに対して処理を行うための特殊なガスなど、様々なガスを使用することができる。   In addition, the kind of gas supplied from said gas supply apparatus 40 is not specifically limited, In addition to gas generally used, such as air and nitrogen, it reacts with powder W and processes with respect to powder W Various gases can be used, such as a special gas.

１０ 原料供給部
１１ 原料供給装置
１２ ふるい装置
１３ 案内管
２０ 加熱部
２１ 加熱装置
３０ 冷却部
３１ 案内部材
４０ ガス供給装置
４１ａ 第１供給路
４１ｂ 第２供給路
４２ａ 第１流量調整弁
４２ｂ 第２流量調整弁
４３ 制御装置
５０ 排ガス部
５１ 排ガス処理装置
５２ 圧力測定器
Ｄ 断熱材
Ｗ 粉体 DESCRIPTION OF SYMBOLS 10 Raw material supply part 11 Raw material supply apparatus 12 Sieve apparatus 13 Guide pipe 20 Heating part 21 Heating apparatus 30 Cooling part 31 Guide member 40 Gas supply apparatus 41a 1st supply path 41b 2nd supply path 42a 1st flow control valve 42b 2nd flow volume Adjusting valve 43 Control device 50 Exhaust gas part 51 Exhaust gas treatment device 52 Pressure measuring device D Heat insulating material W Powder

Claims (5)

原料の粉体を供給する原料供給部と、この原料供給部から供給されて落下される粉体を加熱処理する加熱部と、加熱処理された粉体を冷却させる冷却部とを備えた落下式粉体処理装置において、上記の加熱部の下側及び／又は上側からガスを供給させて加熱部内を落下する粉体の落下速度を制御することを特徴とする落下式粉体処理装置。   A drop type equipped with a raw material supply unit for supplying raw material powder, a heating unit for heating the powder supplied from the raw material supply unit and dropping, and a cooling unit for cooling the heat-treated powder In the powder processing apparatus, a drop type powder processing apparatus is characterized in that gas is supplied from the lower side and / or upper side of the heating unit to control the falling speed of the powder falling in the heating unit. 請求項１に記載した落下式粉体処理装置において、上記の加熱部の下側及び／又は上側にガスを供給するガス供給装置と、このガス供給装置から加熱部の下側及び／又は上側に供給するガス量を制御する制御装置を設けたことを特徴とする落下式粉体処理装置。   The drop type powder processing apparatus according to claim 1, wherein a gas supply device that supplies gas to the lower side and / or upper side of the heating unit, and the lower side and / or upper side of the heating unit from the gas supply device. A drop-type powder processing apparatus provided with a control device for controlling the amount of gas to be supplied. 請求項１又は請求項２に記載した落下式粉体処理装置において、上記の制御装置は、加熱部内の圧力に基づいて、ガス供給装置から加熱部の下側及び／又は上側に供給するガス量を制御することを特徴とする落下式粉体処理装置。   3. The falling powder processing apparatus according to claim 1, wherein the control device is configured to supply an amount of gas supplied from the gas supply device to the lower side and / or the upper side of the heating unit based on the pressure in the heating unit. A drop-type powder processing apparatus characterized by controlling the temperature. 請求項１〜請求項３の何れか１項に記載した落下式粉体処理装置において、上記の加熱部の上側に加熱部内の排ガスを外部に排出させる排ガス部を設けると共に、この排ガス部に上記の排ガスを無害化させる排ガス処理装置を設けたことを特徴とする落下式粉体処理装置。   The falling powder processing apparatus according to any one of claims 1 to 3, wherein an exhaust gas part for exhausting the exhaust gas in the heating part to the outside is provided on the upper side of the heating part, and the exhaust gas part has the above-mentioned A falling powder processing apparatus provided with an exhaust gas processing apparatus for detoxifying the exhaust gas. 請求項４に記載した落下式粉体処理装置において、上記の排ガス部に加熱部内の圧力を測定するための圧力測定器を設けたことを特徴とする落下式粉体処理装置。   5. The dropping powder processing apparatus according to claim 4, wherein a pressure measuring device for measuring the pressure in the heating unit is provided in the exhaust gas part.
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JPS60248234A (en) * 1984-05-25 1985-12-07 Hitachi Ltd Device for treating powder body with plasma
JPS63111101A (en) * 1986-10-30 1988-05-16 Daido Steel Co Ltd Spheroidizing method for metal or alloy powder
JPH1096657A (en) * 1996-09-24 1998-04-14 R I D Kk Apparatus for measuring mass flow rate of powder and static powder-painting apparatus adopting the same
JPH11108712A (en) * 1997-09-30 1999-04-23 Hino Motors Ltd Flow-rate measuring device for fluid
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