CN101152636A - Production control logical system for blast-furnace cinder grinder - Google Patents
Production control logical system for blast-furnace cinder grinder Download PDFInfo
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- CN101152636A CN101152636A CNA2006101166438A CN200610116643A CN101152636A CN 101152636 A CN101152636 A CN 101152636A CN A2006101166438 A CNA2006101166438 A CN A2006101166438A CN 200610116643 A CN200610116643 A CN 200610116643A CN 101152636 A CN101152636 A CN 101152636A
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Abstract
The invention provides a grinding production control logic system for blast furnace slag and is characterized in that the process flow is that raw material is sent into a raw material warehouse by a conveyor and then is measured by a measuring belt, and material with set value is sent into an original feeding tape conveyor which is provided with a metal detector preventing iron material from getting into a grinder and increasing vibration and wear of the grinder,, and the original feeding tape conveyor is used for removing of ironware; raw material transported by the feeding tape conveyor is feed into a roller mill by a rotary material feeding machine through a pneumatic two-way valve for baking and grinding; grinded slag powder is sent into a powder concentrator by ascending wind power and selected qualified product is sent into an air flume after collected by a bladder-typed dust collector and then is sent into a stock room by a bucket elevator; unqualified coarse product gets through a flap valve and the bucket elevator and is sent into the roller mill for grinding after second iron removing through a vibration feeding machine and a magnetic separator.
Description
Technical field
The present invention relates to a kind of production control logical system for blast-furnace cinder grinder, belong to slag micropowder production technology class.
Background technology
At present, along with the raising of resource utilization, slag micropowder (hereinafter to be referred as breeze) product is extensively come into operation in building materials, building trade, and breeze manufacturing enterprise is also more and more.How to make the production of breeze safer, how production capacity maximization is convenient to the production line operation worker more and is grasped hints on operation rapidly, has become the problem of many breezes manufacturing enterprise research.
Summary of the invention
In order to ensure safety; produce breeze efficiently; reduce because the equipment breakdown that direct labor's misoperation causes; require and the setting of relevant protection parameter according to the start and stop of breeze production technology relevant device; and grope repeatedly and adjust according to actual production equipment ruuning situation; work out out a cover slag micropowder production process control logic system; and in conjunction with the collective and distributive type control system that uses in the utilization current industrial system; the feasible breeze production control system of setting up according to this flogic system has effectively guaranteed the safety of production equipment; improved production efficiency, and the easy operating personnel grasp.
The production control logical system for blast-furnace cinder grinder case that the present invention proposes is: a kind of production control logical system for blast-furnace cinder grinder, feature is: its technological process is that raw material is directly sent into former feed bin 2 through belt feeder 1, claims 3 meterings, the material that will set value to be given to be provided with to prevent that irony enters grinding machine in the raw material, increase grinding machine vibration and the metal detector 5 that weares and teares and the former feeding rubber conveyer 4 of tramp iron separator 6 through measuring belt then; Through raw material that the feeding rubber conveyer is come by pneumatic two-way valve 7 behind revolution feeding machine 8 feeding Vertical Mills 9, dry, grinding; Slag micropowder through grinding is sent into powder concentrator 10 by rising wind-force, and the qualified products of selecting are sent into warehouse for finished product 14 through bucket elevator 13 again after bag filter 11 collections enter air flume 12; Underproof coarse fodder product by vibration feeder 17 and magnetic separator 18, is gone into Vertical Mill 9 grindings through flap valve 15, bucket elevator 16 once more after the secondary deironing.
The described breeze technological process of production is divided into 13 systems, and they are circulation, air compressor system, finished product induction system, powder concentrator system, the coarse fodder circulatory system, main dust collecting system, hot blast stove system, grinder system, seal fan machine system, grinding roller lubricating system, hydraulic system, main deceleration lubricating system and feed system; And between each system, all set up linkage relationship each other; In whole system, have only circulation, seal fan system and main lubricated three systems of slowing down, be to start separately, normal independent operating, and be not subjected to be associated with it system's restriction and operation; But, can cause other system that is associated with it to jump machine in case above-mentioned three systems break down; That is: air compressor system need can start after the normal operation of circulation, in case circulation breaks down, the air compressor system that will cause being associated with it answers temperature too high and jump machine immediately; Powder concentrator system, grinding roller lubricating system, hydraulic system all need under the prerequisite of the normal operation of seal fan system, just can guarantee normal the startup and operation, otherwise also can jump machine immediately; The finished product induction system need normally be moved under the prerequisite at air compressor system, can start and normally operation; The coarse fodder circulatory system need normally be moved under the prerequisite in air compressor system, powder concentrator system, can start and normally operation; Main dust collecting system need normally be moved under the prerequisite in the coarse fodder circulatory system, finished product induction system, can start and normally operation; And after the normal operation of main dust collecting system, can start hot blast stove system; Start grinder system, need satisfy hot blast stove system, hydraulic system is normally moved, the grinding roller lubricating system has also been handled the normal operation of standby or normal operating condition and main deceleration lubricating system after 10 minutes, and the grinding machine outlet temperature need and keep precondition more than 10 minutes more than or equal to 85 ℃.
Wherein according to the actual functional capability of grinding roller lubricating system, and for energy-conservation consideration, start-up control with the grinding roller lubricating system, be designed to after sending enabled instruction not necessarily starting state of the individual device in the grinding roller lubricating system, this enabled instruction only is to allow each equipment is in holding state in this system; Allow this system in grinding roller axle temperature＞62 ℃, oil pump starts automatically; During grinding roller axle temperature＜57 ℃, or mill rod bearing temperature＞55 degree, corresponding oil pump operation and oily flow are crossed when low, and oil pump then can be out of service automatically.
In order to protect grinding machine and to be convenient to operation, a grinder system and feed system associated buttons in control system, have been done; Under the situation that material is arranged on the mill, can press this associated buttons, and then send enabled instruction, at this moment grinder system and feed system will be as interlock combinations, after finishing grinder system and starting, start feed system rapidly; And if do not have material on the mill, can cancel association, start earlier feed system, behind the material of spreading some on the mill, stop feed system, press associated buttons again, start grinding machine and feed system.
Stability for the smooth transmission that guarantees material and system's operation, and be convenient to operation, after sending startup grinding machine and feed system signal, ID blower fan valve will reach 25% automatically in the coarse fodder circulatory system, when grinding machine and feed system start finish after, this valve can reach 50% again automatically; And at grinding machine and feed system, run into the jumping machine and send stopping signal, when out of service, this valve can be closed to 5% automatically.
In the middle of whole blast-furnace cinder micro-powder production system normal course of operation, if one of them system breaks down, must move the bootable system in rear at it so, will jump machine rapidly; Whole production system is followed: " open afterwards earlier and stop, then open the order of stopping earlier " carries out the orderly closedown order; And in stopping process, when the grinding machine outlet temperature is higher than 60 ℃, will forbid stopping the powder concentrator system and the coarse fodder circulatory system.
This production control logical system for blast-furnace cinder grinder of setting up on the flogic system according to above technical scheme proposition, both met the requirement of blast-furnace cinder grinding production technology and technological process, also be illustrated in the production overall process in the manufacturing monitoring system truly intuitively, for the production operation personnel, only need press the start and stop button of each system, the start and stop successively automatically of the equipment of each system; And beyond the local devices operation, or not according to manufacturing technique requirent start and stop equipment, because the interlock protection setting of equipment has been arranged in the control system, energy assurance equipment is with the instruction of not acceptance error.This is for guaranteeing that system-wide safe, efficient operation provides strong technical support.
Description of drawings
Accompanying drawing 1 is the breeze technological process of production
Accompanying drawing 2 is breeze production system control logic internal system FB(flow block)s
Accompanying drawing 3 is breeze production control system monitored picture schematic diagrames.
Among the figure
The 1-raw material claims through the former feed bin 3-of belt feeder 2-measuring belt
The former feeding rubber conveyer of 4-5-metal detector 6-tramp iron separator
The pneumatic two-way valve 8-revolution of 7-feeding machine 9-Vertical Mill
10-powder concentrator 11-bag filter 12-air flume
13-finished product bucket elevator 14-warehouse for finished product 15-flap valve
16-coarse fodder bucket elevator 17-vibration feeder 18-magnetic separator
19-hot-blast stove 20-ID blower fan 21-seal fan
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further specified.
According to the breeze technological process of production (Fig. 1), 13 systems that the breeze production line is divided into, and establish control logic system (Fig. 2) between them, and each system starts successively according to the direction of arrow, and the contrary direction of arrow is shut down successively, promptly opens afterwards earlier and stops.And, breeze is produced collective and distributive type control system carry out configuration according to this control logic relation.
In Fig. 3 example, monitored picture is the electronic display that places central control room, has embodied the operation information of used all devices in the control logic system: i.e. equipment running status, fault message and technological parameter.
Normally in service at equipment, red indication equipment is in halted state in this picture, and valve is in the complete shut-down position; Green indication equipment is in running status, and valve is at fully open position, and yellow expression valve is in the centre position.
In Fig. 3 example, breeze production control system start and stop interface concerns the block diagram design according to the breeze production system control logic of Fig. 2 fully.In this picture, each square is represented each set of systems, and is linked to corresponding group of pictures, and red this group of expression is not activated or abnormal operation, and green this group of expression has started and moved normal; The boot sequence of whole slag micropowder production system is undertaken by arrow indication, has only when a last system starts to finish and move normally, and promptly corresponding square becomes green, just can start the next system that arrow is indicated; Shutdown sequence is opposite with boot sequence.
The production control logical system for blast-furnace cinder grinder case that the present invention proposes is: this production control logical system for blast-furnace cinder grinder, feature is: its technological process is: raw material is directly sent into former feed bin 2 through belt feeder 1, claim 3 meterings, the material that will set value to be given to be provided with to prevent that irony enters grinding machine in the raw material, increase grinding machine vibration and the metal detector 5 that weares and teares and the former feeding rubber conveyer 4 of tramp iron separator 6 through measuring belt then; Through raw material that the feeding rubber conveyer is come by pneumatic two-way valve 7 behind revolution feeding machine 8 feeding Vertical Mills 9, dry, grinding; Slag micropowder through grinding is sent into powder concentrator 10 by rising wind-force, and the qualified products of selecting are sent into warehouse for finished product 14 through bucket elevator 13 again after bag filter 11 collections enter air flume 12; Underproof coarse fodder product by vibration feeder 17 and magnetic separator 18, is gone into the Vertical Mill grinding through flap valve 15, bucket elevator 16 once more after the secondary deironing.
The described breeze technological process of production is divided into 13 systems, and they are circulation, air compressor system, finished product induction system, powder concentrator system, the coarse fodder circulatory system, main dust collecting system, hot blast stove system, grinder system, seal fan machine system, grinding roller lubricating system, hydraulic system, main deceleration lubricating system and feed system; And between each system, all set up linkage relationship each other; In whole system, have only circulation, seal fan system and main lubricated three systems of slowing down, be to start separately, normal independent operating, and be not subjected to be associated with it system's restriction and operation; But, can cause other system that is associated with it to jump machine in case above-mentioned three systems break down; That is: air compressor system need can start after the normal operation of circulation, in case circulation breaks down, the air compressor system that will cause being associated with it answers temperature too high and jump machine immediately; Powder concentrator system, grinding roller lubricating system, hydraulic system all need under the prerequisite of the normal operation of seal fan system, just can guarantee normal the startup and operation, otherwise also can jump machine immediately; The finished product induction system need normally be moved at air compressor system and can start under the prerequisite and normally operation; The coarse fodder circulatory system need normally be moved in air compressor system, powder concentrator system and can start under the prerequisite and normally operation; Main dust collecting system need normally be moved in the coarse fodder circulatory system, finished product induction system and can start under the prerequisite and normally operation; And after the normal operation of main dust collecting system, can start hot blast stove system; Start grinder system, need satisfy hot blast stove system, hydraulic system is normally moved, the grinding roller lubricating system has also been handled the normal operation of standby or normal operating condition and main deceleration lubricating system after 10 minutes, and the grinding machine outlet temperature need and keep more than 10 minutes more than or equal to 85 ℃.
Wherein according to the actual functional capability of grinding roller lubricating system, and for energy-conservation consideration, start-up control with the grinding roller lubricating system, be designed to after sending enabled instruction not necessarily starting state of the individual device in the grinding roller lubricating system, this enabled instruction only is to allow each equipment is in holding state in this system; Allow this system in grinding roller axle temperature＞62 ℃, oil pump starts automatically; During grinding roller axle temperature＜57 ℃, or mill rod bearing temperature＞55 degree, corresponding oil pump operation and oily flow are crossed when low, and oil pump is out of service automatically.
In order to protect grinding machine and to be convenient to operation, a grinder system and feed system associated buttons in control system, have been done; Under the situation that material is arranged on the mill, can press this associated buttons, and then send enabled instruction, at this moment grinder system and feed system will be as interlock combinations, after finishing grinder system and starting, start feed system rapidly; And if do not have material on the mill, can cancel association, start earlier feed system, behind the material of spreading some on the mill, stop feed system, press associated buttons again, start grinding machine and feed system.
Stability for the smooth transmission that guarantees material and system's operation, and be convenient to operation, after sending startup grinding machine and feed system signal, ID blower fan valve will reach 25% automatically in the coarse fodder circulatory system, when grinding machine and feed system start finish after, this valve can reach 50% again automatically; And at grinding machine and feed system, run into the jumping machine and send stopping signal, when out of service, this valve can be closed to 5% automatically.
In the middle of whole blast-furnace cinder micro-powder production system normal course of operation, if one of them system breaks down, must move the bootable system in rear at it so, will jump machine rapidly; Whole production system is followed: " open afterwards earlier and stop, then open the order of stopping earlier " carries out the orderly closedown order; And in stopping process, when the grinding machine outlet temperature is higher than 60 ℃, will forbid stopping the powder concentrator system and the coarse fodder circulatory system.
Claims (6)
1. production control logical system for blast-furnace cinder grinder, feature is: its technological process is that raw material is directly sent into former feed bin (2) through belt feeder (1), and the material that claims (3) to measure, will set value through measuring belt is given to be provided with and prevents that irony enters grinding machine, the vibration of increase grinding machine and the metal detector (5) of wearing and tearing and the former feeding rubber conveyer (4) of tramp iron separator (6) in the raw material then; Through raw material that the feeding rubber conveyer is come by pneumatic two-way valve (7) behind revolution feeding machine (8) feeding Vertical Mill (9), dry, grinding; Slag micropowder through grinding is sent into powder concentrator (10) by rising wind-force, and the qualified products of selecting are sent into warehouse for finished product (14) through bucket elevator (13) again after bag filter (11) collection enters air flume (12); Underproof coarse fodder product by vibration feeder (17) and magnetic separator (18), is gone into Vertical Mill (9) grinding through flap valve (15), bucket elevator (16) once more after the secondary deironing.
2. a kind of production control logical system for blast-furnace cinder grinder as claimed in claim 1, it is characterized in that: the described breeze technological process of production is divided into 13 systems, and they are circulation, air compressor system, finished product induction system, powder concentrator system, the coarse fodder circulatory system, main dust collecting system, hot blast stove system, grinder system, seal fan machine system, grinding roller lubricating system, hydraulic system, main deceleration lubricating system and feed system; And between each system, all set up linkage relationship each other; In whole system, have only circulation, seal fan system and main lubricated three systems of slowing down, be to start separately, normal independent operating, and be not subjected to be associated with it system's restriction and operation; But, can cause other system that is associated with it to jump machine in case above-mentioned three systems break down; That is: air compressor system need can start after the normal operation of circulation, in case circulation breaks down, the air compressor system that will cause being associated with it answers temperature too high and jump machine immediately; Powder concentrator system, grinding roller lubricating system, hydraulic system all need under the prerequisite of the normal operation of seal fan system, just can guarantee normal the startup and operation, otherwise also can jump machine immediately; The finished product induction system need normally be moved under the prerequisite at air compressor system, can start and normally operation; The coarse fodder circulatory system need normally be moved under the prerequisite in air compressor system, powder concentrator system, can start and normally operation; Main dust collecting system need normally be moved under the prerequisite in the coarse fodder circulatory system, finished product induction system, can start and normally operation; And after the normal operation of main dust collecting system, can start hot blast stove system; Start grinder system, need satisfy hot blast stove system, hydraulic system is normally moved, the grinding roller lubricating system has also been handled the normal operation of standby or normal operating condition and main deceleration lubricating system after 10 minutes, and the grinding machine outlet temperature need and keep precondition more than 10 minutes more than or equal to 85 ℃.
3. as claim 1 and 2 described a kind of production control logical system for blast-furnace cinder grinder, it is characterized in that: wherein according to the actual functional capability of grinding roller lubricating system, and for energy-conservation consideration, start-up control with the grinding roller lubricating system, be designed to after sending enabled instruction not necessarily starting state of the individual device in the grinding roller lubricating system, this enabled instruction only is to allow each equipment is in holding state in this system; Allow this system in grinding roller axle temperature＞62 ℃, oil pump starts automatically; During grinding roller axle temperature＜57 ℃, or grinding roller bearing temperature＞55 degree, corresponding oil pump operation and oily flow are crossed when low, and oil pump is out of service automatically.
4. as claim 1 and 2 described a kind of production control logical system for blast-furnace cinder grinder, it is characterized in that:, in control system, done a grinder system and feed system associated buttons in order to protect grinding machine and to be convenient to operation; Under the situation that material is arranged on the mill, can press this associated buttons, and then send enabled instruction, at this moment grinder system and feed system will be as interlock combinations, after finishing grinder system and starting, start feed system rapidly; And if do not have material on the mill, can cancel association, start earlier feed system, behind the material of spreading some on the mill, stop feed system, press associated buttons again, start grinding machine and feed system.
5. as claim 1 and 2 described a kind of production control logical system for blast-furnace cinder grinder, it is characterized in that: for the stability of the smooth transmission that guarantees material and system's operation, and be convenient to operate, after sending startup grinding machine and feed system signal, ID blower fan valve will reach 25% automatically in the coarse fodder circulatory system, when grinding machine and feed system start finish after, this valve can reach 50% again automatically; And at grinding machine and feed system, run into the jumping machine and send stopping signal, when out of service, this valve can be closed to 5% automatically.
6. as claim 1 and 2 described a kind of production control logical system for blast-furnace cinder grinder, it is characterized in that: in whole blast-furnace cinder micro-powder production system normal course of operation, if one of them system breaks down, must move the bootable system in rear at it so, will jump machine rapidly; Whole production system is followed: " open afterwards earlier and stop, then open the order of stopping earlier " carries out the orderly closedown order; And in stopping process, when the grinding machine outlet temperature is higher than 60 ℃, will forbid stopping the powder concentrator system and the coarse fodder circulatory system.
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| WO2011107124A1 (en) * | 2010-03-05 | 2011-09-09 | Loesche Gmbh | Preparation method for stainless steel slags and steelmaking slags for recovering metal |
| CN101751011B (en) * | 2008-12-02 | 2011-12-07 | 上海宝田新型建材有限公司 | Slag grinding production control system |
| CN101930226B (en) * | 2009-06-26 | 2012-01-04 | 上海宝田新型建材有限公司 | Start control process for COREX slag grinding production control system |
| CN102381550A (en) * | 2011-10-24 | 2012-03-21 | 南京化工职业技术学院 | Material weighing and variable-speed conveying system for blast furnace |
| CN102784690A (en) * | 2011-05-15 | 2012-11-21 | 盐城吉达环保设备有限公司 | External-circulation iron-removing grinding technology |
| CN102888472A (en) * | 2012-10-12 | 2013-01-23 | 山西太钢不锈钢股份有限公司 | Method for enhancing grade of vertical mill return iron powder |
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| CN104707706A (en) * | 2015-03-13 | 2015-06-17 | 浙江拓翔建材有限公司 | Slag powder grinding control system |
| CN104755172A (en) * | 2012-10-26 | 2015-07-01 | 美卓矿物公司 | Method for controlling a mineral material processing plant and a mineral material processing plant |
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| CN105498934A (en) * | 2016-02-03 | 2016-04-20 | 江苏新业重工股份有限公司 | Vertical slag milling system |
| CN107051705A (en) * | 2017-04-12 | 2017-08-18 | 山西太钢不锈钢股份有限公司 | Slag powders outer circulation iron removal system and method |
| CN108273643A (en) * | 2018-04-20 | 2018-07-13 | 南京凯盛国际工程有限公司 | A kind of novel raw material vertical-grinding preparation system |
| CN110064485A (en) * | 2019-04-18 | 2019-07-30 | 湖南正信检测技术股份有限公司 | A kind of vertical crushing plant of multilayered structure |
| CN113102088A (en) * | 2021-04-10 | 2021-07-13 | 南京工程学院 | Full-automatic autonomous centralized control device and method for large-scale blast furnace pulverizing system |
| CN113695051A (en) * | 2021-08-27 | 2021-11-26 | 范旭辉 | Crushing, grinding and drying production system for high-moisture industrial tailing slag solid waste |
| CN115888948A (en) * | 2022-11-16 | 2023-04-04 | 成武金利宏新能源有限公司 | Preparation method of slag micro powder |
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| CN101751011B (en) * | 2008-12-02 | 2011-12-07 | 上海宝田新型建材有限公司 | Slag grinding production control system |
| CN101930226B (en) * | 2009-06-26 | 2012-01-04 | 上海宝田新型建材有限公司 | Start control process for COREX slag grinding production control system |
| WO2011107124A1 (en) * | 2010-03-05 | 2011-09-09 | Loesche Gmbh | Preparation method for stainless steel slags and steelmaking slags for recovering metal |
| US9212404B2 (en) | 2010-03-05 | 2015-12-15 | Loesche Gmbh | Preparation method for stainless steel slags and steelworks slags for recovery of metal |
| AU2010347572B2 (en) * | 2010-03-05 | 2014-12-04 | Loesche Gmbh | Preparation method for stainless steel slags and steelmaking slags for recovering metal |
| CN102784690A (en) * | 2011-05-15 | 2012-11-21 | 盐城吉达环保设备有限公司 | External-circulation iron-removing grinding technology |
| CN102381550A (en) * | 2011-10-24 | 2012-03-21 | 南京化工职业技术学院 | Material weighing and variable-speed conveying system for blast furnace |
| CN102381550B (en) * | 2011-10-24 | 2014-12-24 | 南京化工职业技术学院 | Material weighing and variable-speed conveying system for blast furnace |
| CN102888472A (en) * | 2012-10-12 | 2013-01-23 | 山西太钢不锈钢股份有限公司 | Method for enhancing grade of vertical mill return iron powder |
| CN104755172A (en) * | 2012-10-26 | 2015-07-01 | 美卓矿物公司 | Method for controlling a mineral material processing plant and a mineral material processing plant |
| CN103285986A (en) * | 2013-05-22 | 2013-09-11 | 江苏新业重工股份有限公司 | Powder grading device |
| CN103721832B (en) * | 2013-11-15 | 2015-05-27 | 中冶北方（大连）工程技术有限公司 | High-pressure grinding roll control system with offcut return function |
| CN103721832A (en) * | 2013-11-15 | 2014-04-16 | 中冶北方（大连）工程技术有限公司 | High-pressure grinding roll control system with offcut return function |
| CN103801443B (en) * | 2013-11-20 | 2016-08-17 | 李培彦 | A kind of active slag powder production system and technological process thereof |
| CN103801443A (en) * | 2013-11-20 | 2014-05-21 | 李培彦 | Active mineral waste residue powder production system and technological process thereof |
| CN104307601A (en) * | 2014-10-10 | 2015-01-28 | 上海凯盛节能工程技术有限公司 | Vertical mill model selecting test system and method |
| CN104707706A (en) * | 2015-03-13 | 2015-06-17 | 浙江拓翔建材有限公司 | Slag powder grinding control system |
| CN104930816A (en) * | 2015-06-29 | 2015-09-23 | 朱庭家 | Clay drying system |
| CN105498934A (en) * | 2016-02-03 | 2016-04-20 | 江苏新业重工股份有限公司 | Vertical slag milling system |
| CN107051705A (en) * | 2017-04-12 | 2017-08-18 | 山西太钢不锈钢股份有限公司 | Slag powders outer circulation iron removal system and method |
| CN108273643A (en) * | 2018-04-20 | 2018-07-13 | 南京凯盛国际工程有限公司 | A kind of novel raw material vertical-grinding preparation system |
| CN110064485A (en) * | 2019-04-18 | 2019-07-30 | 湖南正信检测技术股份有限公司 | A kind of vertical crushing plant of multilayered structure |
| CN113102088A (en) * | 2021-04-10 | 2021-07-13 | 南京工程学院 | Full-automatic autonomous centralized control device and method for large-scale blast furnace pulverizing system |
| CN113695051A (en) * | 2021-08-27 | 2021-11-26 | 范旭辉 | Crushing, grinding and drying production system for high-moisture industrial tailing slag solid waste |
| CN113695051B (en) * | 2021-08-27 | 2022-08-23 | 范旭辉 | Crushing, grinding and drying production system for high-moisture industrial tailing slag solid waste |
| CN115888948A (en) * | 2022-11-16 | 2023-04-04 | 成武金利宏新能源有限公司 | Preparation method of slag micro powder |
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