JP2010046569A - Post-treatment apparatus of slag and method therefor - Google Patents
Post-treatment apparatus of slag and method therefor Download PDFInfo
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- JP2010046569A JP2010046569A JP2008210749A JP2008210749A JP2010046569A JP 2010046569 A JP2010046569 A JP 2010046569A JP 2008210749 A JP2008210749 A JP 2008210749A JP 2008210749 A JP2008210749 A JP 2008210749A JP 2010046569 A JP2010046569 A JP 2010046569A
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- 239000002893 slag Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 89
- 238000000926 separation method Methods 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000004576 sand Substances 0.000 claims abstract description 22
- 238000001035 drying Methods 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 229910052742 iron Inorganic materials 0.000 claims description 22
- 238000005192 partition Methods 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims description 5
- 238000012805 post-processing Methods 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract 6
- 238000004064 recycling Methods 0.000 abstract 2
- 239000002994 raw material Substances 0.000 description 18
- 239000006148 magnetic separator Substances 0.000 description 16
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 13
- 235000011941 Tilia x europaea Nutrition 0.000 description 13
- 239000004571 lime Substances 0.000 description 13
- 238000005406 washing Methods 0.000 description 13
- 238000012545 processing Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 6
- 238000003672 processing method Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000007873 sieving Methods 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 238000007885 magnetic separation Methods 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
Description
本発明は、鉱滓の後処理装置及びその処理方法に関し、特に、製鋼段階で発生する鉱滓の水洗い式後処理装置及び方法において使用し、粉塵を抑え、石灰による土や地下水への影響を防止し、さらに、鉱滓を細くし、完全回収して再利用することができる鉱滓の後処理装置及びその方法に関するものである。 The present invention relates to a slag after-treatment device and a method for treating the slag, and in particular, used in a water-washing-type after-treatment device and method for slag generated in the steelmaking stage to suppress dust and prevent lime from affecting soil and groundwater. Furthermore, the present invention relates to a post-treatment apparatus and method for a slag that can make the slag thinner, recover it completely, and reuse it.
完全なる鉱滓後処理技術には一般に、鉱滓の前処理ステップと、鉱滓の加工ステップと、鉱滓の養生ステップと、ＢＯＦ（basic oxygen furnace）鋼の精密加工ステップとが含まれる。しかしこの方法では、、鉱滓の後処理を行う時、常にすべてのステップを行う訳ではなく、場合に応じて選択することとなる。そのうち、鉱滓の加工ステップは主に、鉱滓に破砕、分級、磁選等の処理をし、鉄の含量が５５％以上のＢＯＦ鋼を選別し、精密加工を行う或いは直接に焼結炉、高炉、転炉、アーク炉等に供給するものである。尚、鉱滓は、製鋼の溶剤、セメントの原料、土の改良剤の他に、道路工事の材料としても使用することが可能である。 Complete slag post-treatment techniques generally include a slag pre-treatment step, a slag processing step, a slag curing step, and a BOF (basic oxygen furnace) steel precision processing step. However, with this method, when performing post-treatment of the slag, not all steps are always performed, and selection is made according to circumstances. Among them, the processing step of the slag is mainly crushed, classified, magnetically segregated, etc. in the slag, and the BOF steel with an iron content of 55% or more is selected and subjected to precision processing or directly in the sintering furnace, blast furnace, Supply to converters, arc furnaces, etc. The iron ore can be used as a road construction material in addition to a steelmaking solvent, a cement raw material, and a soil improver.
図５に示すように、前記従来の鉱滓の処理方法の手順は、先ず鉱滓を原料収集部（４０）から破砕機（４１）内に送って破砕した後、磁選機（４２）によってその中から製鋼の原料として使用する、鉄を含有するＢＯＦ鋼を選別し、残った鉱滓に対して更なる篩い分け（４３）作業を施し、道路工事に使用する、異なるレベルの道路用材料（４４）を得る。 As shown in FIG. 5, the procedure of the conventional slag processing method is as follows. First, the slag is sent from the raw material collecting section (40) into the crusher (41) and crushed, and then the magnetic separator (42) is used. Select BOF steel containing iron to be used as a raw material for steelmaking, and further screen (43) for the remaining slag, and use different levels of road material (44) for road construction. obtain.
しかしながら、前記の方法によれば、炉内から取り出した鉱滓は高温であるため、水により冷却させる必要があるが、そのせいで、鉱滓と石灰粉とが付着し、磁選や篩い分け等によっても分離できなくなるといった問題がある。 However, according to the above method, since the iron slag taken out from the furnace is high temperature, it is necessary to cool it with water, but because of this, the iron slag and lime powder adhere to each other, and magnetic separation, sieving, etc. There is a problem that separation becomes impossible.
また、製鋼の工程においては、多種の副原料を入れる必要があり、そのうち、生石灰は大量に含まれることから、鉱滓にも大量の石灰が含まれているが、石灰のｐＨ値は大よそ１０から１１であり、従来の処理方法では石灰を分離できないことから、各レベルの道路用材料に石灰が残ってしまうので、使用範囲が大きく制限されることになる。故に、その石灰を分離できれば、鉱滓の再利用価値を大幅に向上させることができる。 In addition, in the steelmaking process, it is necessary to add various auxiliary raw materials. Among them, quick lime is contained in a large amount, so the slag also contains a large amount of lime, but the pH value of lime is approximately 10%. Since the lime cannot be separated by the conventional processing method, the lime remains in the road material at each level, so the range of use is greatly limited. Therefore, if the lime can be separated, the reuse value of the slag can be greatly improved.
図６は、他の従来の鉱滓の処理方法の手順を示すものであり、それによるとこの方法では、鉱滓を原料収集部（５０）から乾燥機（５１）内に送り、鉱滓が冷却する際に吸収した水をすべて乾燥した後に鉱滓を破砕機（５２）によって破砕した後、磁選機（５３）によってその中から鉄を含有するＢＯＦ鋼を選別し、残った鉱滓に対して更なる篩い分け（５４）作業を施し、異なるレベルの道路用材料（５５）に分ける。 FIG. 6 shows the procedure of another conventional slag processing method, according to which the slag is fed from the raw material collecting section (50) into the dryer (51), and the slag is cooled. After all the water absorbed in the slag has been dried, the slag is crushed by the crusher (52), and then the BOF steel containing iron is selected from the slag by the magnetic separator (53), and the remaining slag is further screened. (54) Work and divide into different levels of road material (55).
この処理方法によれば、先に鉱滓を乾燥するので、篩い分けするときに、鉱滓と石灰とが付着してふるい網を塞ぐことはなく、より多くのレベルに分けることができるが、この方法においては、以下に示すような問題を有する。
１．
設備費用の増大：
鉱滓を乾燥した後、石灰粉が飛散して空気を汚染する虞があるので、乾燥機の他にも、汚染防止設備である集塵機（５６）を設置する必要があり、設備のコストを増大させてしまう。
２．
作業効率の低下：
前記方法では、完全に乾燥しなければ所望のレベルの道路用材料に分けることができなく、また、処理を停滞させないために、一度に乾燥できる量も限られているので、作業効率に影響を与えてしまう。
３．
空気汚染：
この方法では、汚染防止設備を設置したとしても、空気中に含まれる微塵を許容値以内に抑えることはできるが、完全に粉塵の飛揚を防止することはできない。
４．
メンテナンス費用の増加：
設備費用の他に、汚染防止設備及び乾燥設備の整備が必要となるので、高額なメンテナンス費用や、場合によっては修理費用がかかってしまう。
According to this treatment method, since the slag is dried first, when sieving, the slag and lime do not adhere and block the sieve net and can be divided into more levels. Has the following problems.
1.
Increase in equipment costs:
After drying the slag, lime powder may be scattered and contaminate the air. In addition to the dryer, it is necessary to install a dust collector (56) that is a pollution prevention equipment, increasing the cost of the equipment. End up.
2.
Reduced work efficiency:
In the above-mentioned method, it is impossible to divide into a desired level of road material unless it is completely dried, and in order not to stagnate the processing, the amount that can be dried at one time is limited. I will give it.
3.
Air pollution:
In this method, even if pollution prevention equipment is installed, fine dust contained in the air can be suppressed within an allowable value, but it is not possible to completely prevent the dust from flying.
4).
Increased maintenance costs:
In addition to equipment costs, it is necessary to maintain pollution prevention equipment and drying equipment, so that high maintenance costs and, in some cases, repair costs are required.
そこで、出願されたのが本発明であって、台湾第４８１６７３号特許「水洗い式鉱滓処理方法」に示すように、水洗いによって選別し、前記従来技術に存在する問題を解決する。しかしながら、前記特許では、水洗いによって砂をふるい出し、水洗いされた泥水は沈殿池に流され微粉を沈殿させる。処理工程をさらに改良し、より細いファイン微粉を沈殿させることができれば、より一層、産業のニーズに応えることができる。本発明が解決しようとしている課題は、そこにある。 Therefore, the present invention has been filed and, as shown in Taiwan No. 481673 patent “Washing-type iron ore processing method”, sorting is performed by washing to solve the problems existing in the prior art. However, according to the patent, sand is washed out by washing with water, and the washed mud is poured into a settling basin to precipitate fine powder. If the processing steps can be further improved and finer fine powders can be precipitated, the needs of the industry can be further met. There is a problem to be solved by the present invention.
本発明は、鉱滓を完全に回収して再利用することができ、高品質の微粉を生成できる鉱滓の後処理装置及び処理方法の提供を目的とする。 An object of the present invention is to provide a post-processing apparatus and a processing method for a slag that can completely recover and reuse the slag and can produce high-quality fine powder.
本発明の請求項１は、８ｍｍ以下にふるい選別された鉱滓を処理する砂洗い機（２１）の後端に設置される鉱滓の後処理装置において、前記砂洗い機（２１）の後端に該砂洗い機（２１）と連通する水位高低差制御設備（２２０）及び強力ポンプ（２２）が設けられると共に、配管（２２１）を介して該強力ポンプ（２２）の出口側に泥水分離設備（２３）が連通するように設けられ、更に、配管（２６）を介して該泥水分離設備（２３）と連通する貯水プール（２４）が設けられる乾燥部（２５）を備え、前記泥水分離設備（２３）に、該泥水分離設備（２３）を前部（２３１）と後部（２３３）とに分ける仕切り部（２３２）が設けられることを特徴とする鉱滓の後処理装置、を提供するものである。 Claim 1 of the present invention is the aftertreatment device for a slag installed at the rear end of the sand washer (21) for treating the slag that has been screened to 8 mm or less, at the rear end of the sand washer (21). A water level elevation control facility (220) and a powerful pump (22) communicating with the sand washer (21) are provided, and a muddy water separation facility (on the outlet side of the powerful pump (22) via a pipe (221)) ( 23) and a drying section (25) provided with a water storage pool (24) communicating with the muddy water separation facility (23) via a pipe (26), the muddy water separation facility ( 23) is provided with a partitioning part (232) for separating the muddy water separation facility (23) into a front part (231) and a rear part (233). .
本発明の請求項２は、前記泥水分離設備（２３）と貯水池（２４）とを接続する配管（２６）の水進入端に昇降式パイプ（２６１）が設けられることを特徴とする請求項１に記載の鉱滓の後処理装置、を提供するものである。 Claim 2 of the present invention is characterized in that an elevating pipe (261) is provided at a water entry end of a pipe (26) connecting the muddy water separation facility (23) and the reservoir (24). The aftertreatment device of the iron ore described in 1. is provided.
本発明の請求項３は、鉱滓の後処理方法において、水洗いされてふるい選別された微粉サイズ以下の鉱滓を含む泥水を、強力ポンプ（２２）によって抽出する搬送作業と、前記泥水を泥水分離設備（２３）に送り込み、二段階の沈殿手段を用いて、泥水に含まれる微粉（１００ｍｅｓｈ以下）サイズの鉱滓を該泥水分離設備（２３）の前部（２３１）に沈殿させ、泥水に含まれているファイン微粉（３００ｍｅｓｈ以下）サイズの鉱滓を該泥水分離設備（２３）の後部（２３３）に沈殿させる泥水分離作業と、沈殿によって鉱滓を除去した水を貯水池（２４）に送り貯留し、再利用する連続貯水作業と、を含むことを特徴とする鉱滓の後処理方法、を提供するものである。 According to a third aspect of the present invention, there is provided a post-treatment method of the slag, wherein the muddy water containing the slag having a fine powder size or less that has been washed and screened is extracted by a powerful pump (22); (23), and using a two-stage sedimentation means, fine slag (100 mesh or less) size of slag contained in the muddy water is precipitated on the front part (231) of the muddy water separation facility (23) and contained in the muddy water. Of fine fine powder (300 mesh or less) slag is deposited in the rear part (233) of the muddy water separation facility (23), and the water from which the slag has been removed is sent to the reservoir (24) for storage and reused. And a post-treatment method of the slag characterized by including a continuous water storage operation.
本発明の請求項４は、前記泥水分離設備（２３）の前部（２３１）及び後部（２３３）に沈殿した微粉サイズ及びファイン微粉サイズの鉱滓を取り出し、乾燥部（２５）に移送して乾燥させる鉱滓乾燥ステップをさらに含むことを特徴とする請求項３に記載の鉱滓の後処理方法、を提供するものである。 According to a fourth aspect of the present invention, the fine powder size and fine fine powder slag precipitated in the front part (231) and rear part (233) of the muddy water separation facility (23) are taken out, transferred to the drying part (25) and dried. 4. The method according to claim 3, further comprising a slag drying step.
本発明によれば、８ｍｍ以下のスペックの鉱滓が砂洗い機によって洗浄された後、強力なポンプでその泥水を泥水分離設備に送り、泥水分離設備の前部の処理により泥水に対して初歩的分離を施し微粉を産生する。その後、泥水を仕切り部から泥水分離設備の後部へ送り、更なる沈殿作業を行って高品質の微粉を沈殿させる。 According to the present invention, after a slag having a specification of 8 mm or less is washed by the sand washer, the muddy water is sent to the muddy water separation facility by a powerful pump, and is rudimentary to the muddy water by processing the front part of the muddy water separation facility. Separating to produce fine powder. Thereafter, the muddy water is sent from the partition to the rear of the muddy water separation facility, and further precipitation is performed to precipitate high quality fine powder.
以下、添付図面を参照して本発明の好適な実施の形態を詳細に説明する。尚、下記実施例は、本発明の好適な実施の形態を示したものにすぎず、本発明の技術的範囲は、下記実施例そのものに何ら限定されるものではない。 Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, the following Example is only what showed the preferred embodiment of this invention, and the technical scope of this invention is not limited to the following Example itself at all.
図１は本発明に係る鉱滓の後処理装置を、鉱滓処理システムに応用した時のステップの流れを示す図であり、図２は本発明に係る鉱滓の後処理装置における強力ポンプ、泥水分離装置、乾燥部及び貯水池の平面図であり、図３は本発明に係る鉱滓の後処理装置における強力ポンプの設置箇所及び沈殿プールの断面図であり、図４は本発明に係る鉱滓の後処理方法の流れを示す図である。 FIG. 1 is a diagram showing a flow of steps when the slag aftertreatment device according to the present invention is applied to a slag treatment system, and FIG. 2 is a powerful pump and muddy water separator in the slag aftertreatment device according to the present invention. FIG. 3 is a plan view of a drying section and a reservoir, FIG. 3 is a cross-sectional view of a place where a powerful pump is installed in a slag aftertreatment apparatus according to the present invention, and a precipitation pool, and FIG. 4 is a slag aftertreatment method according to the present invention. It is a figure which shows the flow of.
図１〜３に示すように、本発明の「鉱滓の後処理装置」は、８ｍｍ以下にふるい選別された鉱滓を処理する砂洗い機（２１）の後端に設置され、該砂洗い機（２１）の後端に砂洗い機（２１）と連通する水位高低差制御設備（２２０）及び強力ポンプ（２２）が設けられると共に、前記強力ポンプ（２２）の出力端における配管（２２１）の後ろ側に泥水分離設備（２３）が設けられる。これにより、砂洗い機（２１）及び磁選機（３０）によって加工された、砂と鉄を含む高濃度の泥水が水位高低差制御設備（２２０）及び強力ポンプ（２２）の加圧によって泥水分離設備（２３）に送られる。また、前記泥水分離設備（２３）には、該泥水分離設備（２３）を前部（２３１）と後部（２３３）とに分ける仕切り部（２３２）が設けられ、その後部（２３３）の端部に昇降式パイプ（２６１）が設けられると共に、該昇降式パイプ（２６１）の後端が配管（２６）を介して貯水プール（２４）と連通し、該泥水分離設備（２３）の周辺に乾燥部（２５）が設けられている。 As shown in FIGS. 1 to 3, the “slag after-treatment device” of the present invention is installed at the rear end of a sand washer (21) for treating ore that has been screened to 8 mm or less. 21) A water level difference control facility (220) and a powerful pump (22) communicating with the sand washer (21) are provided at the rear end, and behind the pipe (221) at the output end of the powerful pump (22). A mud separation facility (23) is provided on the side. As a result, the high concentration mud containing sand and iron processed by the sand washer (21) and magnetic separator (30) is separated by the pressurization of the water level difference control facility (220) and the powerful pump (22). Sent to facility (23). The muddy water separation facility (23) is provided with a partition (232) that divides the muddy water separation facility (23) into a front portion (231) and a rear portion (233), and an end portion of the rear portion (233). Is provided with an elevating pipe (261), and the rear end of the elevating pipe (261) communicates with the water storage pool (24) via the pipe (26), and is dried around the muddy water separation facility (23). A part (25) is provided.
前記仕切り部（２３２）の高さは、泥水分離設備（２３）の周囲の高さより低いので、泥水分離設備（２３）の前部（２３１）に送られた泥水から微粉が次第に沈殿し、残りは仕切り部（２３２）を通過して後部（２３３）に送られ沈殿する。 Since the height of the partition part (232) is lower than the surrounding height of the muddy water separation facility (23), fine powder gradually settles from the muddy water sent to the front part (231) of the muddy water separation facility (23), and remains. Passes through the partition part (232) and is sent to the rear part (233) to precipitate.
図１に示すように、本発明の鉱滓の後処理装置と前段処理装置とを組み合わせた鉱滓の処理システムによれば、鉱滓の前段処理の手順は、鉱滓を原料収集部（１０）から水洗いふるい機（１１）上に送り、ポンプ（３１）により貯水プール（２４）の水を該水洗いふるい機（１１）に送り水洗いし、鉱滓を、３０ｍｍ以上、１２〜３０ｍｍ、８〜１２ｍｍ及び８ｍｍ以下の四種類に選別してから、それぞれ磁選機（１２、１８、１９、２０）によって鉄を含むＢＯＦ鋼を選別する。そのうち、３０ｍｍ以上の鉱滓は、破砕機（１３）によって破砕する必要があるが、鉱滓は水洗いされているので、破砕の際に粉塵が飛散することはない。そして、破砕された鉱滓から、磁選機（１４）によって鉄を含むＢＯＦ鋼を選別し、二次原料収集部（１５）を介して石磨き機（１６）に送られて研磨され、その後、磁選機（１７）で鉄を含むＢＯＦ鋼を選別し、残った鉱滓は、原料収集部（１０）に戻されて再処理される。 As shown in FIG. 1, according to the slag processing system combining the slag post-treatment device and the pre-treatment device of the present invention, the slag pre-treatment procedure is to screen the slag from the raw material collecting section (10) with water washing. It is sent onto the machine (11), and the water in the storage pool (24) is sent to the washing screen (11) by the pump (31) and washed with water, and the slag is 30 mm or more, 12 to 30 mm, 8 to 12 mm and 8 mm or less. After sorting into four types, BOF steel containing iron is sorted by a magnetic separator (12, 18, 19, 20). Among them, the iron ore of 30 mm or more needs to be crushed by the crusher (13), but since the mine is washed with water, dust is not scattered during crushing. Then, the BOF steel containing iron is selected from the crushed iron ore by a magnetic separator (14), sent to the stone polisher (16) through the secondary raw material collector (15) and polished, and then magnetically selected. The BOF steel containing iron is selected by the machine (17), and the remaining slag is returned to the raw material collecting part (10) and reprocessed.
また、前記水洗いふるい機（１１）の内部には、鉱滓に対し散水可能な散水システムが設けられており、これにより、８ｍｍ以下の鉱滓は磁選機（２０）により磁選された後に砂洗い機（２１）に搬送した後、水洗いによって砂をふるい出し、磁選機（３０）の磁選作業によって鉄を含むＢＯＦ鋼を選別することができる。 In addition, a sprinkling system capable of sprinkling the slag is provided inside the washing sieving machine (11), whereby a slag of 8 mm or less is magnetically selected by a magnetic separator (20) and then a sand washer ( After transporting to 21), sand is washed out by washing, and BOF steel containing iron can be selected by magnetic separation work of the magnetic separator (30).
そして、鉱滓が８ｍｍ以下に選別された後、砂洗い機（２１）で砂を洗浄し、その洗浄された砂は、歩道のタイルの平らげ用砂、ピッチコンクリートの基材、線路の充填剤等に使用される。 After the slag has been sorted to 8 mm or less, the sand is washed with a sand washer (21), and the washed sand is sand for flattening sidewalk tiles, pitch concrete base material, track filler, etc. Used for.
一方、８ｍｍ以下微粉サイズの鉱滓を含む泥水は、本発明の鉱滓の後処理装置及び処理方法によってその後の処理を行うことができる。図４に示すように、本発明の「鉱滓の後処理方法」では、水洗いされてふるい選別された微粉サイズ以下の鉱滓を含む泥水を、強力ポンプ（２２）によって抽出する搬送作業と、該泥水を泥水分離設備（２３）に送り、二段階の沈殿手段を用いて、泥水に含まれている微粉（１００ｍｅｓｈ以下）サイズの鉱滓を、該泥水分離設備（２３）の前部（２３１）に沈殿させると共に、泥水に含まれているファイン微粉（３００ｍｅｓｈ以下）サイズの鉱滓を、該泥水分離設備（２３）の後部（２３３）に沈殿させる泥水分離作業と、沈殿によって鉱滓を除去した水を貯水プール（２４）に送り貯留し、再利用する連続貯水作業と、を含んでいる。 On the other hand, the muddy water containing the slag of fine powder size of 8 mm or less can be further processed by the aftertreatment device and the processing method of the slag of the present invention. As shown in FIG. 4, in the “slag post-treatment method” according to the present invention, the muddy water containing the slag not larger than the fine powder size that has been washed and screened is extracted by a powerful pump (22), and the muddy water. Is sent to the muddy water separation facility (23), and using a two-stage sedimentation means, the fine powder (100 mesh or less) size of the slag contained in the muddy water is precipitated in the front part (231) of the muddy water separation facility (23). And a muddy water separation operation for precipitating fine fine powder (300 mesh or less) slag contained in the muddy water in the rear part (233) of the muddy water separation facility (23), and water from which the slag has been removed by precipitation is stored in a storage pool. (24) and storing and reusing the continuous water storage work.
前記泥水分離作業において沈殿した微粉サイズの鉱滓は、石灰、肥料、土地の改良等の原料として使用できる。また、同作業において沈殿した精密微粉サイズの鉱滓は、セメント、スラグ等の原料として使用できる。さらに、前記微粉サイズ、精密微粉サイズの鉱滓は、乾燥部（２５）で乾燥した後、他の工業用として使用できるので、研磨加工コストの節約となる。 The fine-sized slag precipitated in the muddy water separation operation can be used as a raw material for lime, fertilizer, land improvement and the like. In addition, the fine fine-size slag precipitated in the same operation can be used as a raw material for cement, slag and the like. Furthermore, since the slag of fine powder size and precision fine powder size is dried in the drying section (25) and can be used for other industrial purposes, the cost of polishing processing is saved.
また、本発明では、前記前記泥水分離設備（２３）と前記貯水プール（２４）とを接続する前記配線（２６）の水進入端に昇降式パイプ（２６１）が設置され、沈殿した鉱滓を掘り出すときに昇降式パイプ（２６１）の水中における高さを調整する。一方、前記連続貯水作業においては、泥水分離が施された水を昇降式パイプ（２６１）によって、配管（２６）を介して貯水プール（２４）に送り、さらに、該貯水プール（２４）に接続されるポンプ（３１）により、水を水洗いふるい機（１１）に送り、鉱滓の洗浄に再利用される。 Moreover, in this invention, the raising / lowering pipe (261) is installed in the water entrance end of the said wiring (26) which connects the said muddy water separation facility (23) and the said water storage pool (24), and digs out the settled slag. Sometimes the height of the liftable pipe (261) in water is adjusted. On the other hand, in the continuous water storage operation, the water subjected to the muddy water separation is sent to the water storage pool (24) through the pipe (26) by the elevating pipe (261) and further connected to the water storage pool (24). The pump (31) is used to send water to the washing screen (11), where it is reused to wash the slag.
以上の説明により、本発明の鉱滓の後処理装置及び処理方法は、以下の点において優れている。
１． 鉱滓は、原料収集部を介して水洗いふるい機に送られる前に、水洗いふるい機の散水システムによって、石灰粉が洗い落とされるので、その後の搬送、破砕、あるいは磁選において、石灰粉が飛散することはない。
２．
鉱滓は、原料収集部を介して水洗いふるい機に送られる前に、水洗いふるい機の散水システムによって、石灰粉が洗い落とされるので、その後の泥水分離作業によって石灰を微粉として沈殿させることにより、それをセメントや肥料として利用することができる。
３．
鉱滓は、原料収集部を介して水洗いふるい機に送られる前に、水洗いふるい機の散水システムによって、石灰粉が洗い落とされるので、石灰粉を完全に除去できることから、セメントの原料として利用できると共に、、各レベルの道路用材料としてＣＮＳを満たすものであるので、エコグッズとして公共事業に広く応用することができる。
４．
泥水分離沈殿池の前部及び後部と、乾燥部と、貯水池等を利用して、微粉よりファイン微粉を生産でき、より緻密化された工業分級に適用でき、業者により多い選択肢を提供でき、コストを低減できる。
From the above description, the aftertreatment device and treatment method of the slag of the present invention are excellent in the following points.
1. Before the slag is sent to the washing screen through the raw material collection unit, the lime powder is washed away by the watering system of the washing screen, so that the lime powder will be scattered during subsequent transportation, crushing, or magnetic separation. There is no.
2.
The slag is washed out by the watering system of the washing screen before it is sent to the washing screen through the raw material collection unit. Can be used as cement or fertilizer.
3.
The slag can be used as a raw material for cement because the lime powder can be removed completely by the watering system of the washing screen before it is sent to the washing screen through the raw material collection unit. Since the CNS is satisfied as a road material at each level, it can be widely applied to public works as eco goods.
4).
Using the front and rear of the muddy water separation sedimentation basin, the drying section, and the reservoir, etc., fine fine powder can be produced from fine powder, and it can be applied to more refined industrial classification, providing more options to the contractor, and cost Can be reduced.
１０ 原料収集部
１１ 水洗いふるい機
１２ 磁選機
１３ 破砕機
１４ 磁選機
１５ 二次原料収集部
１６ 石磨き機
１７ 磁選機
１８ 磁選機
１９ 磁選機
２０ 磁選機
２１ 砂洗い機
２２ 強力ポンプ
２２０ 水位高低差制御設備
２２１ 配管
２３ 泥水分離設備
２３１ 前部
２３２ 仕切り部
２３３ 後部
２４ 貯水プール
２５ 乾燥部
２６ 配管
２６１ 昇降式パイプ
３０ 磁選機
３１ ポンプ
４０ 原料収集部
４１ 破砕機
４２ 磁選機
４３ 篩い分け
４４ 道路用材料
５０ 原料収集部
５１ 乾燥機
５２ 破砕機
５３ 磁選機
５４ 篩い分け
５５ 道路用材料
５６ 集塵機
DESCRIPTION OF SYMBOLS 10 Raw material collection part 11 Flushing machine 12 Magnetic separator 13 Crusher 14 Magnetic separator 15 Secondary raw material collection part 16 Stone polisher 17 Magnetic separator 18 Magnetic separator 19 Magnetic separator 20 Magnetic separator 21 Sand washer 22 Powerful pump 220 Water level difference Control equipment 221 Piping 23 Muddy water separation equipment 231 Front part 232 Partition part 233 Rear part 24 Reservoir pool 25 Drying part 26 Pipe 261 Lifting pipe 30 Magnetic separator 31 Pump 40 Raw material collecting part 41 Crusher 42 Magnetic separator 43 Sieving 44 Road material 50 Raw Material Collection Unit 51 Dryer 52 Crusher 53 Magnetic Separator 54 Screening 55 Road Material 56 Dust Collector
Claims (4)
前記砂洗い機（２１）の後端に該砂洗い機（２１）と連通する水位高低差制御設備（２２０）及び強力ポンプ（２２）が設けられると共に、配管（２２１）を介して該強力ポンプ（２２）の出口側に泥水分離設備（２３）が連通するように設けられ、更に、配管（２６）を介して該泥水分離設備（２３）と連通する貯水プール（２４）が設けられる乾燥部（２５）を備え、
前記泥水分離設備（２３）に、該泥水分離設備（２３）を前部（２３１）と後部（２３３）とに分ける仕切り部（２３２）が設けられることを特徴とする鉱滓の後処理装置。 In the aftertreatment device of the slag installed at the rear end of the sand washer (21) for treating the slag selected and screened to 8 mm or less,
A water level difference control facility (220) and a powerful pump (22) communicating with the sand washer (21) are provided at the rear end of the sand washer (21), and the powerful pump is connected via a pipe (221). A drying section provided with a muddy water separation facility (23) communicating with the outlet side of (22), and further provided with a water storage pool (24) communicating with the muddy water separation facility (23) via a pipe (26) (25)
A slag after-treatment device, characterized in that the muddy water separation facility (23) is provided with a partition part (232) for dividing the muddy water separation facility (23) into a front part (231) and a rear part (233).
水洗いされてふるい選別された微粉サイズ以下の鉱滓を含む泥水を、強力ポンプ（２２）によって抽出する搬送作業と、
前記泥水を泥水分離設備（２３）に送り込み、二段階の沈殿手段を用いて、泥水に含まれる微粉（１００ｍｅｓｈ以下）サイズの鉱滓を該泥水分離設備（２３）の前部（２３１）に沈殿させ、泥水に含まれているファイン微粉（３００ｍｅｓｈ以下）サイズの鉱滓を該泥水分離設備（２３）の後部（２３３）に沈殿させる泥水分離作業と、
沈殿によって鉱滓を除去した水を貯水池（２４）に送り貯留し、再利用する連続貯水作業と、
を含むことを特徴とする鉱滓の後処理方法。 In the aftertreatment method of mine,
Conveying work for extracting muddy water containing fine iron ore with a fine powder size or less that has been washed and screened by a powerful pump (22);
The muddy water is fed into the muddy water separation facility (23), and using a two-stage sedimentation means, fine powder (100 mesh or less) sized iron ore contained in the muddy water is precipitated at the front portion (231) of the muddy water separation facility (23). , A muddy water separation operation for precipitating fine fine powder (300 mesh or less) slag contained in the muddy water in the rear part (233) of the muddy water separation facility (23);
Continuous water storage work to send and store the water from which the slag has been removed by sedimentation to the reservoir (24) for reuse,
A post-treatment method for iron ore, comprising:
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| CN111992317A (en) * | 2020-07-23 | 2020-11-27 | 江苏山宝集团有限公司 | Tail end process for improving quality of machine-made sand |
| CN112427137A (en) * | 2020-10-16 | 2021-03-02 | 日昌升建筑新材料设计研究院有限公司 | Water-saving wheel type sand washing equipment and method |
| CN112427137B (en) * | 2020-10-16 | 2024-03-19 | 日昌升建筑新材料设计研究院有限公司 | Water-saving wheel type sand washing equipment and method |
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