JP2002126563A - Dry sand making device - Google Patents

Dry sand making device

Info

Publication number
JP2002126563A
JP2002126563A JP2000323935A JP2000323935A JP2002126563A JP 2002126563 A JP2002126563 A JP 2002126563A JP 2000323935 A JP2000323935 A JP 2000323935A JP 2000323935 A JP2000323935 A JP 2000323935A JP 2002126563 A JP2002126563 A JP 2002126563A
Authority
JP
Japan
Prior art keywords
fine powder
crusher
crushed material
classifier
sand making
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000323935A
Other languages
Japanese (ja)
Other versions
JP3579343B2 (en
Inventor
Hiroyasu Baba
紘保 馬場
Teruji Watajima
輝二 綿島
Minobu Watanabe
美信 渡邊
Kenichiro Dan
健一郎 團
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nakayama Iron Works Ltd
Original Assignee
Nakayama Iron Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nakayama Iron Works Ltd filed Critical Nakayama Iron Works Ltd
Priority to JP2000323935A priority Critical patent/JP3579343B2/en
Publication of JP2002126563A publication Critical patent/JP2002126563A/en
Application granted granted Critical
Publication of JP3579343B2 publication Critical patent/JP3579343B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a dry sand making device capable of minimizing the generation of dust to ameliorate working environments, and at the same time, preventing dust pollution from occurring. SOLUTION: This dry sand making device comprises a crusher 1 which crushes a received raw material, a fine powder classifier 2 which removes fine powder, and the like, from the crushed material obtained by the crusher 1 and a selector 5 which sorts out the crushed material obtained by the crusher 1 into sand and an oversized crushed material and recovers the sand. The fine powder classifier 2 is arranged between the crusher 1 and the selector 5.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、破砕機により破砕
した破砕物からコンクリート用骨材等として使用する砕
砂を選別回収するための乾式製砂装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry sand making apparatus for selectively collecting crushed sand used as concrete aggregate or the like from crushed materials crushed by a crusher.

【0002】[0002]

【従来の技術】乾式製砂装置は、受け入れた原料を破砕
する破砕機と、破砕機で得られた破砕物から微粉等を除
去する微粉分級機と、破砕機で得られた破砕物を砂分と
オーバーサイズ破砕物に選別して、砂分を回収する選別
機とを備えている。この乾式製砂装置において、従来で
は、微粉や不要なダストや不純物(以下、微粉等とい
う)を除去させるための分級は、破砕物の付着による分
級効率の低下や回避等の理由から、破砕物を砂分とオー
バーサイズ破砕物に選別した後に行うようになってい
た。即ち、製砂フローシートでいえば、破砕機、選別
機、微粉分級機の順に配設されていた。
2. Description of the Related Art A dry sand making apparatus includes a crusher for crushing received raw materials, a fine powder classifier for removing fine powder and the like from crushed materials obtained by the crusher, and a crusher obtained by the crusher. And a sorter for collecting sand content by separating the waste into oversized crushed materials. Conventionally, in this dry sand making apparatus, classification for removing fine powder, unnecessary dust and impurities (hereinafter, referred to as fine powder, etc.) is performed for reasons such as reduction of classification efficiency due to adhesion of crushed material and avoidance. After being sorted into sand and oversized crushed material. That is, in the case of a sand making flow sheet, a crusher, a sorter, and a fine powder classifier were arranged in this order.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、従来の
ように、破砕機、選別機、微粉分級機の順に配設した乾
式製砂装置では、破砕機から選別機を経て微粉分級機に
至るまでの間において、破砕物中に多く含まれている微
粉等がコンベア等の乗り継ぎ部分等や、特に選別機にお
いて尽く粉塵となって大気に拡散される。これでは、作
業環境が悪くなるし、粉塵公害として砕石場近隣の住民
に悪影響を及ぼし、砕石場の運営にも影響することにな
る。尚、乾式製砂が一般に行われるようなる以前では、
粉塵の発生が少ない湿式製砂がほとんどであったが、設
備が大規模になる点、汚濁水処理設備が必要なこと等の
理由から、ランニングコストを増大させる等の問題があ
った。
However, as in the prior art, in a dry sand making apparatus in which a crusher, a sorter, and a fine powder classifier are arranged in this order, from the crusher to the fine powder classifier through the sorter. In the meantime, fine powder and the like, which are contained in a large amount in the crushed material, are diffused into the atmosphere as dust exhausted in a connecting portion such as a conveyor or the like, and particularly in a sorting machine. In this case, the working environment will be degraded, dust pollution will adversely affect residents near the quarry, and will affect the operation of the quarry. In addition, before dry sand making became common,
Most of the wet sands produced little dust, but there were problems such as an increase in running costs due to the large scale of the equipment and the necessity of a polluted water treatment facility.

【0004】本発明は、かかる従来の問題を解決するた
めになされたもので、粉塵の発生を極力抑えて、作業環
境を改善すると共に粉塵公害を防止できるようにした乾
式製砂装置を提供することを課題としている。
The present invention has been made to solve such a conventional problem, and provides a dry sand making apparatus capable of minimizing dust generation, improving a working environment and preventing dust pollution. That is the task.

【0005】[0005]

【課題を解決するための手段】上記の課題を解決するた
めに、本発明の乾式製砂装置(請求項1)は、受け入れ
た原料を破砕する破砕機と、破砕機で得られた破砕物か
ら微粉等を除去する微粉分級機と、破砕機で得られた破
砕物を砂分とオーバーサイズ破砕物に選別して、砂分を
回収する選別機とを備え、前記微粉分級機が破砕機と選
別機の間に配設されている構成とした。
In order to solve the above-mentioned problems, a dry sand making apparatus of the present invention (Claim 1) comprises a crusher for crushing a received raw material and a crushed material obtained by the crusher. A fine powder classifier that removes fine powders and the like, and a sorter that sorts the crushed material obtained by the crusher into sand and oversized crushed material and collects the sand content, wherein the fine powder classifier is a crusher. And a sorter.

【0006】本発明の乾式製砂装置は、製砂フローシー
トでいえば、破砕機、微粉分級機、選別機の順に配設さ
れているため、破砕機で得られた破砕物から微粉等を微
粉分級機で除去したのち、選別機によって破砕物を砂分
とオーバーサイズ破砕物に選別して、砂分を回収するこ
とになる。このように、破砕機で得られた破砕物からま
ず先に微粉等を除去するため、以後の工程、特に選別機
での粉塵の発生を抑制することができる。
In the dry sand making apparatus of the present invention, in the case of a sand making flow sheet, since a crusher, a fine powder classifier and a sorting machine are arranged in this order, fine powder and the like are obtained from the crushed material obtained by the crusher. After being removed by a fine powder classifier, the crushed material is separated into sand and oversized crushed material by a separator to collect the sand. As described above, since the fine powder and the like are first removed from the crushed material obtained by the crusher, it is possible to suppress the generation of dust in subsequent steps, particularly, in the sorter.

【0007】本発明の乾式製砂装置において、選別機に
より選別されたオーバーサイズ破砕物を破砕機に戻すた
めの搬送手段(例えば、搬送コンベア)を備えている態
様(請求項2)がある。従って、搬送手段によりオーバ
ーサイズ破砕物を破砕機に戻すことができるため、オー
バーサイズ破砕物を破砕機で再度破砕することができ、
原料から砂分を回収する製砂率を向上させることができ
る。
In the dry sand making apparatus of the present invention, there is a mode (claim 2) in which a transport means (for example, a transport conveyor) for returning the oversized crushed material sorted by the sorter to the crusher is provided. Therefore, since the oversized crushed material can be returned to the crusher by the transport means, the oversized crushed material can be crushed again by the crusher,
The rate of sand production for recovering sand from the raw material can be improved.

【0008】又、本発明の乾式製砂装置において、破砕
機で発生した破砕時微粉等を微粉分級機に送る第1微粉
搬送手段と、微粉分級機で除去した分級微粉等を第1微
粉搬送手段からの破砕時微粉等とともに集塵機に搬送す
る第2微粉搬送手段を備えている態様(請求項3)があ
る。従って、破砕機で発生した破砕時微粉等は第1微粉
搬送手段によって微粉分級機に送られ、この微粉分級機
で除去した分級微粉等とともに第2微粉搬送手段によっ
て集塵機に送られる。このように、破砕時微粉等と分級
微粉等を一緒にして集塵機に送ることができるため、破
砕時微粉等と分級微粉等を共通の集塵機で回収すること
ができるし、微粉分級機で発生する分級微粉等だけでな
く、破砕機で発生する破砕時微粉等についても回収でき
るため、乾式製砂装置全体として粉塵の発生を抑えるこ
とができる。
Further, in the dry sand making apparatus of the present invention, a first fine powder conveying means for sending fine powder at the time of crushing generated by the crusher to the fine powder classifier, and a first fine powder conveying the classified fine powder removed by the fine powder classifier. There is a mode (claim 3) in which a second fine powder transport means is transported to the dust collector together with the fine powder at the time of crushing from the means. Therefore, the fine powder during crushing generated by the crusher is sent to the fine powder classifier by the first fine powder conveying means, and is sent to the dust collector by the second fine powder conveying means together with the classified fine powder removed by the fine powder classifier. In this way, since the fine powder at the time of crushing and the classified fine powder can be sent together to the dust collector, the fine powder at the time of crushing and the classified fine powder can be collected by the common dust collector, and are generated by the fine particle classifier. Since not only the classified fine powder and the like but also the fine powder at the time of crushing generated by the crusher can be collected, the generation of dust can be suppressed in the dry sand making apparatus as a whole.

【0009】[0009]

【発明の実施の形態】以下、本発明の実施の形態を図面
により詳述する。尚、本発明の具体的な構成は、以下の
実施の形態に限定されるものではない。図1は本発明の
実施の第1形態である乾式製砂装置のフローシート図、
図2は乾式製砂装置に設けた微粉分級機の断面図であ
る。
Embodiments of the present invention will be described below in detail with reference to the drawings. Note that the specific configuration of the present invention is not limited to the following embodiments. FIG. 1 is a flow sheet diagram of a dry sand making apparatus according to a first embodiment of the present invention,
FIG. 2 is a sectional view of a fine powder classifier provided in the dry sand making apparatus.

【0010】図において、1は破砕機としての竪型衝撃
式破砕機で、原料投入ホッパ10又は前工程破砕設備1
1から原料を受け入れて破砕し、その破砕物を微粉分級
機2に搬送するようになっている。この場合、竪型衝撃
式破砕機1の直下に微粉分級機2を配設して、竪型衝撃
式破砕機1からそのまま微粉分級機2に破砕物を投入す
るようにしてもよいし、又、竪型衝撃式破砕機1と微粉
分級機2の間に搬送コンベアを設けもよい。尚、破砕機
としては、竪型衝撃式破砕機のほか、例えば、ロールク
ラッシャやコーンクラッシャを用いることができる。
In the drawing, reference numeral 1 denotes a vertical impact type crusher as a crusher, and a raw material input hopper 10 or a pre-process crusher 1
The raw material is received and crushed, and the crushed material is conveyed to a fine powder classifier 2. In this case, the fine powder classifier 2 may be disposed directly below the vertical impact type crusher 1, and the crushed material may be directly input from the vertical impact type crusher 1 to the fine powder classifier 2, A conveyor may be provided between the vertical impact crusher 1 and the fine powder classifier 2. In addition, as a crusher, for example, a roll crusher or a cone crusher can be used in addition to a vertical impact crusher.

【0011】前記微粉分級機2を図2により説明する。
図2において、20は本体で、内部に傾斜状空間が形成
された函体に形成され、スプリング(図示せず)により
弾性支持されている。この本体20の下面部には振動手
段としての加振機21が連結されている。この加振機2
1は、その振動方向が本体20と加振機21を合わせた
ほぼ重心部Gを通り、かつ垂直Yよりも破砕物の移動方
向(矢印A方向)に傾くと共に、水平Xよりも上向きに
傾くようにしている。
The fine powder classifier 2 will be described with reference to FIG.
In FIG. 2, reference numeral 20 denotes a main body, which is formed in a box having an inclined space formed therein, and is elastically supported by a spring (not shown). A vibrator 21 as a vibration means is connected to a lower surface of the main body 20. This shaker 2
Numeral 1 indicates that the vibration direction of the crushed object passes through substantially the center of gravity G where the main body 20 and the vibrator 21 are combined, and is inclined more than the vertical Y in the moving direction of the crushed material (the direction of the arrow A) and is inclined more upward than the horizontal X. Like that.

【0012】本体20の内部には、隣り合う受板22,
22の先端部と基端部が重合するように複数の受板22
を階段状に配設して、前記加振機21による振動で破砕
物を上から下に向けて移動させるように形成された傾斜
分級面23が形成されている。この傾斜分級面23の上
面側には分級室24が形成されると共に、傾斜分級面2
3の裏面側には空気流入室25が形成され、この空気流
入室25から分級室24に連通するように各受板22,
22間に空気流路Sが形成されている。そして、各受板
22の先端部には、破砕物の移動方向に延長して網状体
26が設けられ、前記空気流路Sがこの網状体26の下
方に開口するように形成されている。
Inside the body 20, adjacent receiving plates 22,
A plurality of receiving plates 22 are arranged so that the distal end and the proximal end of the
Are arranged in a step-like manner, and an inclined classification surface 23 formed so as to move the crushed material from top to bottom by the vibration of the vibrator 21 is formed. A classification chamber 24 is formed on the upper surface side of the inclined classification surface 23, and the inclined classification surface 2
An air inflow chamber 25 is formed on the back surface side of each of the base plates 3.
An air flow path S is formed between the two. A mesh 26 is provided at the tip of each receiving plate 22 so as to extend in the moving direction of the crushed material, and the air flow path S is formed so as to open below the mesh 26.

【0013】尚、本体20の上端部には前記竪型衝撃式
破砕機1からの破砕物を受け入れる投入口27が形成さ
れており、この投入口27から投入された破砕物がガイ
ド板28を経て傾斜分級面23の上端部に供給されるよ
うになっている。本体20の下端部には排出口29が形
成されており、傾斜分級面23を移動してきた破砕物を
傾斜分級面23の下端部から落下させて、この排出口2
9から取り出すようになっている。又、本体20の上面
には分級室24に開口するように排気口30が形成さ
れ、この排気口30には微粉等のみを通過させるスクリ
ーン31が取り付けられている。又、本体20の上側端
面には空気流入室25内に開口するように空気取入口3
2が形成されている。
An inlet 27 for receiving the crushed material from the vertical impact crusher 1 is formed at the upper end of the main body 20, and the crushed material supplied from the inlet 27 forms a guide plate 28. After that, it is supplied to the upper end of the inclined classification surface 23. A discharge port 29 is formed at the lower end of the main body 20, and the crushed material that has moved on the inclined classification surface 23 is dropped from the lower end of the inclined classification surface 23, and this discharge port 2 is formed.
9 to be taken out. An exhaust port 30 is formed on the upper surface of the main body 20 so as to open to the classification chamber 24, and a screen 31 that allows only fine powder or the like to pass is attached to the exhaust port 30. An air inlet 3 is formed on the upper end face of the main body 20 so as to open into the air inflow chamber 25.
2 are formed.

【0014】従って、この微粉分級機2では、投入口2
7から投入された破砕物は、ガイド板28を経て傾斜分
級面23の上端部に供給され、加振機21による振動で
傾斜分級面23上を上から下に向けて移動する。この傾
斜分級面23上での移動に際し、各受板22の先端部か
ら破砕物の移動方向に延長して網状体26が設けられて
いるため、傾斜分級面23を移動する破砕物を、受板2
2上から引き続き網状体26の上に移動させて、この受
板22及び網状体26の上でほぐしながら満遍なく分散
させることができる。そして、空気流入室25内には送
風機によって空気取入口32から空気が供給され、この
空気が各受板22,22間に形成した空気流路Sを経て
分級室24に吹き出される。このとき、空気流路Sが網
状体26の下方に開口して分級室24に連通しているた
め、空気流路Sから吹き出される空気が網状体26の下
方から分級室24内に向けて吹き付けられる。このよう
に、網状体26の上で分散している破砕物に対して下方
から空気が吹き付けられるため、破砕物に含まれている
微粉等を分級室24内で効率よく吹き飛ばすことがで
き、コンクリート用骨材として、又、品質の高い砕砂を
得ることができる。尚、分級室24内に吹き飛ばされた
微粉等は、排気口30から空気とともにバクフイルタ等
の集塵機4(図1に示す)に吸引収集されて堆積回収さ
れ、又、微粉等を取り除いた破砕物は、傾斜分級面23
の下端部から落下して排出口29から取り出され、選別
機5(図1に示す)に送られる。
Therefore, in this fine powder classifier 2, the input port 2
The crushed material input from 7 is supplied to the upper end of the inclined classification surface 23 via the guide plate 28, and moves from the top to the bottom on the inclined classification surface 23 by the vibration of the vibrator 21. At the time of movement on the inclined classification surface 23, the meshes 26 are provided so as to extend in the moving direction of the crushed material from the front end of each receiving plate 22, so that the crushed material moving on the inclined classification surface 23 is received. Board 2
2 can be moved onto the mesh body 26 continuously, and can be uniformly dispersed while being loosened on the receiving plate 22 and the mesh body 26. Then, air is supplied into the air inflow chamber 25 from the air intake 32 by a blower, and the air is blown out to the classification chamber 24 via the air flow path S formed between the receiving plates 22, 22. At this time, since the air flow path S is opened below the mesh body 26 and communicates with the classification chamber 24, the air blown out from the air flow path S flows from below the mesh body 26 into the classification chamber 24. Sprayed. As described above, since air is blown from below onto the crushed material dispersed on the mesh member 26, fine powder and the like contained in the crushed material can be efficiently blown off in the classification chamber 24, and the concrete As the aggregate for use, high-quality crushed sand can be obtained. The fine powder and the like blown into the classifying chamber 24 are collected by suction from the exhaust port 30 together with air into a dust collector 4 (shown in FIG. 1) such as a back filter, and collected and collected. , Inclined classification surface 23
Is dropped from the lower end of the container, taken out of the outlet 29, and sent to the sorting machine 5 (shown in FIG. 1).

【0015】図1に戻って説明を続ける。竪型衝撃式破
砕機1と微粉分級機2との間には、竪型衝撃式破砕機1
で発生した破砕時微粉等を微粉分級機2に送る第1微粉
搬送手段33、例えば、ダクトや密閉構造の搬送コンベ
アが設けられ、又、微粉分級機2と集塵機4の間には、
微粉分級機2で除去した分級微粉等を第1微粉搬送手段
33からの破砕時微粉等とともに集塵機4に搬送する第
2微粉搬送手段34、例えばダクトが設けられている。
尚、微粉分級機2から集塵機4へは送風機40による吸
引で分級微粉等及び破砕時微粉等が収集されるようにな
っている。
Returning to FIG. 1, the description will be continued. Between the vertical impact crusher 1 and the fine powder classifier 2, there is a vertical impact crusher 1
A first fine powder transport means 33 for sending fine powder at the time of crushing generated in the above to the fine powder classifier 2, for example, a conveyor having a duct or a closed structure is provided, and between the fine powder classifier 2 and the dust collector 4,
A second fine powder transport means 34, for example, a duct, for transporting the classified fine powder and the like removed by the fine powder classifier 2 to the dust collector 4 together with the fine powder at the time of crushing from the first fine powder transport means 33 is provided.
The fine powder classifier 2 and the dust collector 4 collect the classified fine powder and the like and the crushed fine powder and the like by suction by the blower 40.

【0016】前記選別機5は、微粉分級機2を経た破砕
物を篩選別して砂分とオーバーサイズ破砕物に選別し
て、砂分を回収するためのもので、オーバーサイズ破砕
物を竪型衝撃式破砕機1に戻すための搬送手段35、例
えば、搬送コンベアを備えている。
The sorter 5 is for sieving the crushed material that has passed through the fine powder classifier 2 to separate the crushed material into sand and oversized crushed material and recovering the sand. A transport means 35 for returning to the crusher 1, for example, a transport conveyor is provided.

【0017】上記の乾式製砂装置は、竪型衝撃式破砕機
1、微粉分級機2、選別機5の順に配設されているた
め、竪型衝撃式破砕機1で得られた破砕物から微粉等を
微粉分級機2で除去したのち、選別機5によって破砕物
を砂分とオーバーサイズ破砕物に選別して、砂分を回収
することになる。このように、竪型衝撃式破砕機1で破
砕した破砕物からまず先に微粉等を除去するため、以後
の工程、特に選別機5への微粉等の供給が減少し、選別
機5での粉塵の発生を抑制することができる。
Since the above-mentioned dry sand making device is arranged in the order of a vertical impact crusher 1, a fine powder classifier 2, and a sorter 5, the crushed material obtained by the vertical impact crusher 1 is used. After the fine powder and the like are removed by the fine powder classifier 2, the crushed material is separated into sand and oversized crushed material by the sorter 5, and the sand is collected. As described above, since fine powder and the like are first removed from the crushed material crushed by the vertical impact crusher 1, the supply of the fine powder and the like to the subsequent steps, particularly to the sorter 5, is reduced. Generation of dust can be suppressed.

【0018】又、選別機5により選別されたオーバーサ
イズ破砕物を竪型衝撃式破砕機1に戻すための搬送手段
35を備えているため、この搬送手段35によりオーバ
ーサイズ破砕物を竪型衝撃式破砕機1に戻すことができ
る。従って、オーバーサイズ破砕物を竪型衝撃式破砕機
1で再度破砕することができ、原料から砂分を回収する
製砂率を向上させることができる。
Further, since there is provided a conveying means 35 for returning the oversized crushed material sorted by the sorter 5 to the vertical impact type crusher 1, the oversized crushed material is vertically moved by the conveying means 35. The crusher 1 can be returned. Therefore, the oversized crushed material can be crushed again by the vertical impact crusher 1, and the sand production rate for recovering sand from the raw material can be improved.

【0019】又、竪型衝撃式破砕機1で発生した破砕時
微粉等は第1微粉搬送手段33によって微粉分級機2に
送られ、この微粉分級機2で除去した分級微粉等ととも
に第2微粉搬送手段34によって集塵機4に送られるよ
うになっている。このように、破砕時微粉等と分級微粉
等を一緒にして集塵機4に送ることができるため、破砕
時微粉等と分級微粉等を共通の集塵機4で回収すること
ができるし、微粉分級機2で発生する分級微粉等だけで
なく、竪型衝撃式破砕機1で発生する破砕時微粉等につ
いても回収できるため、乾式製砂装置全体として粉塵の
発生を抑えることができる。尚、選別機5にも微粉回収
手段を設けると、乾式製砂装置のほぼ全体において微粉
等を回収することができるようになる。
The crushed fine powder generated by the vertical impact crusher 1 is sent to the fine powder classifier 2 by the first fine powder conveying means 33, and the second fine powder is removed together with the classified fine powder removed by the fine powder classifier 2. It is sent to the dust collector 4 by the transport means 34. As described above, the fine powder at the time of crushing and the classified fine powder can be sent to the dust collector 4 together, so that the fine powder at the time of crushing and the classified fine powder can be collected by the common dust collector 4, and the fine powder classifier 2 can be collected. In addition to the classified fine powder generated in the above, the fine powder during crushing generated in the vertical impact type crusher 1 can be collected, so that the generation of dust can be suppressed in the dry sand making apparatus as a whole. In addition, when the fine powder collecting means is also provided in the sorting machine 5, it becomes possible to collect the fine powder and the like in almost the entire dry sand making apparatus.

【0020】[0020]

【発明の効果】以上説明してきたように、本発明の乾式
製砂装置(請求項1)にあっては、破砕機で得られた破
砕物からまず先に微粉等を除去するため、以後の工程、
特に選別機への微粉等の供給が減少し、選別機での粉塵
の発生を抑制することができる。
As described above, in the dry sand making apparatus of the present invention (claim 1), first, fine powder and the like are removed from the crushed material obtained by the crushing machine. Process,
In particular, the supply of fine powder and the like to the sorting machine is reduced, and the generation of dust in the sorting machine can be suppressed.

【0021】又、選別機により選別されたオーバーサイ
ズ破砕物を破砕機に戻すための搬送手段を備えるように
すると(請求項2)、オーバーサイズ破砕物を破砕機で
再度破砕することができ、原料から砂分を回収する製砂
率を向上させることができる。
[0021] Further, if a transport means for returning the oversized crushed material selected by the sorting machine to the crusher is provided (claim 2), the oversized crushed material can be crushed again by the crusher, The rate of sand production for recovering sand from the raw material can be improved.

【0022】又、破砕機で発生した破砕時微粉等を微粉
分級機で除去した分級微粉等とともに集塵機に送るよう
にすると(請求項2)、破砕時微粉等と分級微粉等を共
通の集塵機で回収することができるし、微粉分級機で発
生する分級微粉等だけでなく、破砕機で発生する破砕時
微粉等についても回収できるため、乾式製砂装置全体と
して粉塵の発生を抑えることができる。
Further, when the fine powder generated during the crushing by the crusher is sent to the dust collector together with the classified fine powder removed by the fine classifier (claim 2), the fine powder during the crushing and the classified fine powder can be shared by a common dust collector. Since it is possible to collect and collect not only the classified fine powder generated by the fine powder classifier but also the crushed fine powder generated by the crusher, it is possible to suppress the generation of dust as the whole dry sand maker.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施の第1形態である乾式製砂装置の
フローシート図である。
FIG. 1 is a flow sheet diagram of a dry sand making apparatus according to a first embodiment of the present invention.

【図2】乾式製砂装置に設けた微粉分級機の断面図であ
る。
FIG. 2 is a sectional view of a fine powder classifier provided in the dry sand making apparatus.

【符号の説明】[Explanation of symbols]

1 竪型衝撃式破砕機(破砕機) 2 微粉分級機 4 集塵機 5 選別機 10 原料投入ホッパ 11 前工程破砕設備 33 第1微粉搬送手段 34 第2微粉搬送手段 35 搬送手段 40 送風機 DESCRIPTION OF SYMBOLS 1 Vertical impact-type crusher (crusher) 2 Fine powder classifier 4 Dust collector 5 Sorter 10 Raw material input hopper 11 Pre-process crushing equipment 33 First fine powder transport means 34 Second fine powder transport means 35 Transport means 40 Blower

フロントページの続き (72)発明者 渡邊 美信 佐賀県武雄市朝日町大字甘久2246番地の1 株式会社中山鉄工所内 (72)発明者 團 健一郎 佐賀県武雄市朝日町大字甘久2246番地の1 株式会社中山鉄工所内 Fターム(参考) 4D067 DD03 DD08 DD09 DD12 DD13 DD15 EE14 EE18 EE22 GA02 GB03 GB04 Continued on the front page (72) Inventor Yoshinobu Watanabe 2246-1, Amakyu, Asahimachi, Takeo, Saga Prefecture Inside Nakayama Iron Works Co., Ltd. F-term in Nakayama Iron Works (reference) 4D067 DD03 DD08 DD09 DD12 DD13 DD15 EE14 EE18 EE22 GA02 GB03 GB04

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 受け入れた原料を破砕する破砕機と、破
砕機で得られた破砕物から微粉等を除去する微粉分級機
と、破砕機で得られた破砕物を砂分とオーバーサイズ破
砕物に選別して、砂分を回収する選別機とを備え、 前記微粉分級機が破砕機と選別機の間に配設されている
ことを特徴とした乾式製砂装置。
1. A crusher for crushing a received raw material, a fine powder classifier for removing fine powder and the like from the crushed product obtained by the crusher, and a crushed product obtained by the crusher And a sorter for collecting sand content. The fine powder classifier is disposed between a crusher and a sorter.
【請求項2】 請求項1記載の乾式製砂装置において、
選別機により選別されたオーバーサイズ破砕物を破砕機
に戻すための搬送手段を備えている乾式製砂装置。
2. The dry sand making apparatus according to claim 1, wherein
A dry sand making device provided with a conveying means for returning the oversized crushed material sorted by the sorter to the crusher.
【請求項3】 請求項1又は2記載の乾式製砂装置にお
いて、破砕機で発生した破砕時微粉等を微粉分級機に送
る第1微粉搬送手段と、微粉分級機で除去した分級微粉
等を第1微粉搬送手段からの破砕時微粉等とともに集塵
機に搬送する第2微粉搬送手段を備えている乾式製砂装
置。
3. The dry sand making apparatus according to claim 1, wherein the first fine powder conveying means for sending fine powder at the time of crushing generated by the crusher to the fine powder classifier, and the classified fine powder removed by the fine powder classifier. A dry sand making device comprising a second fine powder transport means for transporting to a dust collector together with fine powder at the time of crushing from the first fine powder transport means.
JP2000323935A 2000-10-24 2000-10-24 Dry sand making equipment Expired - Fee Related JP3579343B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000323935A JP3579343B2 (en) 2000-10-24 2000-10-24 Dry sand making equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000323935A JP3579343B2 (en) 2000-10-24 2000-10-24 Dry sand making equipment

Publications (2)

Publication Number Publication Date
JP2002126563A true JP2002126563A (en) 2002-05-08
JP3579343B2 JP3579343B2 (en) 2004-10-20

Family

ID=18801542

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3579343B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2004035216A1 (en) * 2002-10-18 2006-02-09 昭和電工株式会社 Dry pulverization apparatus and dry pulverization method
JP2007061813A (en) * 2005-08-01 2007-03-15 Nisshin Flour Milling Inc Wheat meal producing method
CN112536132A (en) * 2020-11-18 2021-03-23 中国水利水电第九工程局有限公司 Machine-made sand shell breaking and core retaining desliming system and desliming process thereof
CN112808424A (en) * 2020-12-30 2021-05-18 奉节县勇立建材有限公司 Rubble system of processing
CN112892814A (en) * 2020-12-24 2021-06-04 中国水利水电第九工程局有限公司 Pneumatic powder removing process in manual sand making process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2004035216A1 (en) * 2002-10-18 2006-02-09 昭和電工株式会社 Dry pulverization apparatus and dry pulverization method
JP4485950B2 (en) * 2002-10-18 2010-06-23 昭和電工株式会社 Dry pulverization apparatus and dry pulverization method
JP2007061813A (en) * 2005-08-01 2007-03-15 Nisshin Flour Milling Inc Wheat meal producing method
CN112536132A (en) * 2020-11-18 2021-03-23 中国水利水电第九工程局有限公司 Machine-made sand shell breaking and core retaining desliming system and desliming process thereof
CN112892814A (en) * 2020-12-24 2021-06-04 中国水利水电第九工程局有限公司 Pneumatic powder removing process in manual sand making process
CN112808424A (en) * 2020-12-30 2021-05-18 奉节县勇立建材有限公司 Rubble system of processing

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