CN102489491B - System and process for recycling furnace slag - Google Patents
System and process for recycling furnace slag Download PDFInfo
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- CN102489491B CN102489491B CN201110403679.5A CN201110403679A CN102489491B CN 102489491 B CN102489491 B CN 102489491B CN 201110403679 A CN201110403679 A CN 201110403679A CN 102489491 B CN102489491 B CN 102489491B
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- furnace slag
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Abstract
The invention discloses a system and a process for recycling furnace slag. The system comprises a conveying system, a magnetic separation system, a wet crushing system, a circulating water system, a water gravity flotation system, and a table sorting system; the conveying system is used for conveying the furnace slag to the wet crushing system, the magnetic separation system is used for separating metal which can be subjected to magnetic separation in the conveying process of the furnace slag, and is arranged in the conveying system; the wet crushing system is used for processing the furnace slag to meet the diameter requirement of materials which are required by production of building materials; the circulating water system is used for supplying circulating water to the wet crushing system, the water gravity flotation system, and the table sorting system; the water gravity flotation system is used for roughly separating other non-ferrous metal from the furnace slag; and the table sorting system is used for finely separating other non-ferrous metal from the furnace slag. By using the process for recycling the furnace slag by the system, metal which cannot be subjected to magnetic separation is separated, and a byproduct of a waste incineration power plant, namely non-ferrous metal in the furnace slag is effectively removed; and the system and the process meet the requirement of large-batch continuous treatment, are high in treatment efficiency, and low in energy consumption, and can provide qualified raw materials for recycling of the furnace slag and protect environment and save resources.
Description
Technical field
The invention belongs to technology of garbage disposal field, especially one way of life garbage incinerating power plant accessory substance---recycling system of furnace clinkers.
Background technology
Along with sustainable development and flat the improving constantly of people's democracy running water of China's economy, the output of domestic waste increases year by year, and average growth rate per annum approaches 9%.Although China city dweller produces the not enough 1kg of rubbish per capita daily, lower than most of developed countries, its total output is not allowed to despise.Within 2010, China's municipal refuse output will reach 19,000 ten thousand tons of left and right, the feature of China's municipal refuse be inorganic content higher than content of organics, non-combustible composition is higher than combustible component.But difference is larger between different classes of city, the content of organic matter of small and medium-sized cities rubbish mostly is 2% left and right, some big cities as the rubbish content of organic matter of Beijing can be up to more than 8%.The slag amount that produces of rubbish after burning is theoretical is 20%～30% of rubbish total amount, and will produce 200～300 tons of slags theoretical every day, will produce every year 7.3～10.95 ten thousand tons of slags.So huge accessory substance is very large burden for power plant, and for environment, is also very large harm.
MSW Incineration Plant accessory substance---in slag, generally contain the harmful substances such as heavy metal, if directly slag carried out to landfill disposal or may cause secondary pollution for regenerations such as construction materials, harm environment and human body health.For this reason, urban garbage disposal and pollution prevention technique policy that country formulates clearly stipulate: should, according to minimizing, resource, innoxious principle, strengthen Whole Course Management, actively carry out harmless treatment and recycling, prevent contaminated environment.The processing of existing slag is mostly landfill disposal, if the mishandling pollution that can cause equally environment of this processing mode.Should be to MSW Incineration Plant accessory substance---slag fully utilizes exploitation, reaches the requirement of regeneration.But more existing slag treatment process can only to the particle diameter of slag process with to being separated by the metal of magnetic separation in slag, still exist in slag for other metal in slag.
Summary of the invention
The present invention provides a kind of non-ferrous metal in can more effective removal slag for solving the technical problem existing in known technology, slag can be processed into again to the raw material of reproducible utilization, can also realize production in enormous quantities, the recycling system of furnace clinkers of pipelining and technique simultaneously.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is:
A kind of recycling system of furnace clinkers, comprises
For the induction system of transporting slag;
For completing at slag course of conveying magnetic separation system that can magnetic separation metal separation;
For slag is processed into the wet type crushing system that meets the required material diameter of production of construction materials;
For the water gravity floatation system of rough other non-ferrous metal that separates slag;
For the separation by shaking table system of other non-ferrous metal of meticulous separation and slag;
For supplying with the circulation of wet type crushing system, water gravity floatation system and separation by shaking table systemic circulation water;
With power supply and the quantity-produced control system for controlling induction system, magnetic separation system, circulation, wet type crushing system, water gravity floatation system, separation by shaking table system;
In described induction system, be provided with magnetic separation system, described induction system end is connected with wet type crushing system, and described wet type crushing system is connected with water gravity floatation system and separation by shaking table system successively,
Described magnetic separation system is made up of dry type permanent magnetic separator, magnet drum and wet magnetic separator, described dry type permanent magnetic separator hangs and is arranged at belt top and does not contact with belt, described magnet drum is arranged in belt conveyor and replaces former belt conveyor roller, and directly contact with belt, described wet magnetic separator is arranged at belt below.
The advantage that the present invention has with good effect is: the present invention completed to can not magnetic separation metal separate; more effectively remove garbage incinerating power plant accessory substance---the non-ferrous metal in slag; met the requirement of continuous treatment in enormous quantities simultaneously; treatment effeciency is high, energy consumption is low; can be for the regeneration of slag provides qualified raw material, protect environment also to save resource simultaneously.
Accompanying drawing explanation
Fig. 1 is system block diagram schematic diagram of the present invention.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1, a kind of recycling system of furnace clinkers, comprises
For the induction system of transporting slag;
For completing at slag course of conveying magnetic separation system that can magnetic separation metal separation;
For slag is processed into the wet type crushing system that meets the required material diameter of production of construction materials; It is characterized in that, also comprise
For the water gravity floatation system of rough other non-ferrous metal that separates slag;
For the separation by shaking table system of other non-ferrous metal of meticulous separation and slag;
For supplying with the circulation of wet type crushing system, water gravity floatation system and separation by shaking table systemic circulation water;
With power supply and the quantity-produced control system for controlling induction system, magnetic separation system, circulation, wet type crushing system, water gravity floatation system, separation by shaking table system;
Magnetic separation system is installed in induction system, the end of induction system connects wet type crushing system, wet type crushing system is connected with water gravity floatation system and separation by shaking table system successively, circulation is connected with wet type crushing system, water gravity floatation system and separation by shaking table system respectively, and control system is controlled action sequencing and the operating frequency of induction system, magnetic separation system, wet type crushing system, circulation, water gravity floatation system and separation by shaking table system simultaneously.
In the present embodiment, described induction system is made up of two-part belt conveyor, and wherein one section is frequency control formula belt conveyor, and bandwidth is 600mm, for slag being delivered to wet type crushing system; Described magnetic separation system is made up of dry type permanent magnetic separator, magnet drum and wet magnetic separator, dry type permanent magnetic separator adopts suspension type mounting means, being positioned at belt top does not contact with belt, magnet drum is arranged in belt conveyor and replaces former belt conveyor roller, and directly contact with belt, wet magnetic separator is installed on belt below, submersible, magnetic separation system is arranged in induction system, for completing at slag course of conveying separation that can magnetic separation metal; Described wet type crushing system is made up of hammer mill and motor, drives V-type band to drive disintegrating machine to move by motor pulley, meets the required material diameter of production of construction materials for slag is processed into; Described circulation is made up of immersible pump, water pipe and Flow-rate adjustment ball valve, and water pipe is connected to each watering equipment place, for supplying with wet type crushing system, water gravity floatation system and separation by shaking table systemic circulation water; Described water gravity floatation system 5 is made up of sawtooth pulsation jig and self-control chute, and chute is welded on sawtooth pulsation jig and enters sluice gate and go out sluice gate, is mainly used in separating roughly other non-ferrous metal in slag; Described separation by shaking table system is made up of mining gravity table and technique tank, is mainly used in other non-ferrous metal of meticulous separation and slag; Described control system can be relay control system, can be also PLC and Control System of Microcomputer, is made up of the power supply of other each system of major control and continuously production switch board, cable.
A slag regeneration technique of utilizing said system, comprises the steps:
1) magnetic separation system is installed in induction system, slag is transported in magnetic separation system by induction system, will in slag, can be separated by the metal of magnetic separation;
2) slag through magnetic separation system is continued transported in wet type crushing system, circulation fills into a certain amount of water to wet type crushing system simultaneously, and water and slag carry out break process in wet type crushing system;
3) slag after break process enters water gravity floatation system with water and separates other non-ferrous metal in slag, simultaneously a certain amount of water of circulation make-up water gravity floatation system;
4) for subsequent use after the slag storage after treatment of water gravity floatation system, water is got back to circulation, and other non-ferrous metal of separating through water gravity floatation system and a small amount of slag enter separation by shaking table system and carry out further separating treatment;
5) slag of separating through above-mentioned steps is for subsequent use after storing equally, simultaneously a certain amount of water of circulation supply separation by shaking table system.
This technique has completed separation that can not magnetic separation metal; more effectively remove garbage incinerating power plant accessory substance---the non-ferrous metal in slag; met continuous treatment in enormous quantities simultaneously; treatment effeciency is high, energy consumption is low; can be for the regeneration of slag provides qualified raw material, protect environment also to save resource simultaneously.
Claims (1)
1. a recycling system of furnace clinkers, comprises
For the induction system of transporting slag;
For completing at slag course of conveying magnetic separation system that can magnetic separation metal separation;
For slag is processed into the wet type crushing system that meets the required material diameter of production of construction materials;
For the water gravity floatation system of rough other non-ferrous metal that separates slag;
For the separation by shaking table system of other non-ferrous metal of meticulous separation and slag;
For supplying with the circulation of wet type crushing system, water gravity floatation system and separation by shaking table systemic circulation water;
With power supply and the quantity-produced control system for controlling induction system, magnetic separation system, circulation, wet type crushing system, water gravity floatation system, separation by shaking table system;
In described induction system, be provided with magnetic separation system, described induction system end is connected with wet type crushing system, and described wet type crushing system is connected with water gravity floatation system and separation by shaking table system successively, it is characterized in that,
Described magnetic separation system is made up of dry type permanent magnetic separator, magnet drum and wet magnetic separator, described dry type permanent magnetic separator hangs and is arranged at belt top and does not contact with belt, described magnet drum is arranged in belt conveyor and replaces former belt conveyor roller, and directly contact with belt, described wet magnetic separator is arranged at belt below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110403679.5A CN102489491B (en) | 2011-12-07 | 2011-12-07 | System and process for recycling furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110403679.5A CN102489491B (en) | 2011-12-07 | 2011-12-07 | System and process for recycling furnace slag |
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| Publication Number | Publication Date |
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| CN102489491A CN102489491A (en) | 2012-06-13 |
| CN102489491B true CN102489491B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110403679.5A Expired - Fee Related CN102489491B (en) | 2011-12-07 | 2011-12-07 | System and process for recycling furnace slag |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008332B (en) * | 2012-12-19 | 2015-01-28 | 华电电力科学研究院 | Device and method for recovering fly ash on heating surface at tail part of power station boiler and hollow particles in bottom ash |
| CN103406329B (en) * | 2013-07-05 | 2014-11-05 | 广东环兴环保节能科技有限公司 | Method for comprehensively treating and utilizing household garbage incineration slag |
| CN104180376B (en) * | 2014-07-18 | 2016-07-13 | 广东华信达节能环保有限公司 | A kind of incineration treatment of garbage technique |
| CN104162535A (en) * | 2014-07-18 | 2014-11-26 | 广东华信达节能环保有限公司 | Slag treatment process |
| CN108421592A (en) * | 2018-02-01 | 2018-08-21 | 河南高盛企业管理咨询有限公司 | A kind of dry Slag treatment equipment of multi-function boiler |
| ES2662880B2 (en) * | 2018-02-21 | 2018-10-24 | Urbaser S. A. | VALUABLE SUBSTANCES RECOVERY PROCEDURE FROM ESCORIA |
| CN109647616B (en) * | 2018-11-30 | 2020-09-08 | 铜陵有色金属集团股份有限公司 | Method for comprehensively recovering magnetite and copper minerals from copper slag flotation tailings |
| CN111282966A (en) * | 2020-03-09 | 2020-06-16 | 温州桂森环境科技有限公司 | Slag treatment system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2973198B2 (en) * | 1997-11-28 | 1999-11-08 | 日本磁力選鉱株式会社 | How to use metal discharged from melting furnace |
| CN1239276C (en) * | 2004-09-16 | 2006-02-01 | 上海寰保渣业处置有限公司 | Process for producing life garbage incinerator slag aggregate |
| CN102218370B (en) * | 2011-06-07 | 2013-01-02 | 大冶有色设计研究院有限公司 | Integrated process method for recycling metal copper from high-grade copper-contained furnace residues |
| CN102284350B (en) * | 2011-08-01 | 2013-09-04 | 福建耀中建材实业有限公司 | Sorting and separation process for utilizing slag comprehensively |
| CN202316501U (en) * | 2011-12-07 | 2012-07-11 | 天津康斯明节能环保科技有限公司 | Recycling system of furnace clinkers |
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