CN212143910U - Steel slag low energy consumption recovery processing system - Google Patents

Steel slag low energy consumption recovery processing system Download PDF

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Publication number
CN212143910U
CN212143910U CN202022393703.9U CN202022393703U CN212143910U CN 212143910 U CN212143910 U CN 212143910U CN 202022393703 U CN202022393703 U CN 202022393703U CN 212143910 U CN212143910 U CN 212143910U
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China
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belt
magnetic separator
vibrating screen
steel slag
slag
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CN202022393703.9U
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王建磊
郑立杨
李军
安峰文
李会健
张金庆
薛鹏
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Shangdong Huate Magnet Technology Co ltd
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Shangdong Huate Magnet Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/20Waste processing or separation

Abstract

The utility model discloses a steel slag low energy consumption recovery processing system, which belongs to the technical field of steel slag recovery, and comprises a slag steel processing mechanism, wherein the slag steel processing mechanism is connected with a tailing screening mechanism, and the tailing screening mechanism is connected with a tailing processing mechanism and an impurity processing mechanism; the utility model discloses in through the jointly broken slag of jaw breaker and single drive high pressure roller mill, make the separation of slag and iron, the combined magnetic separation of deironing ware and permanent magnetism cylinder simultaneously obtains bold slag steel and the fine iron powder that dissociate in the slag, in time deironing reduces the wearing and tearing of follow-up equipment and reaches cost reduction and efficiency's purpose.

Description

Steel slag low energy consumption recovery processing system
Technical Field
The utility model relates to a slag recovery technical field, concretely relates to slag low energy consumption recovery processing system.
Background
The steel slag is waste slag generated in metallurgical industry, is a functional by-product generated in the steel-making process, and is a necessary product in the steel-making process.
With the continuous increase of steel output in recent years, steel slag generated by steel enterprises can not be treated in time, so that a large amount of steel slag occupies land and pollutes the environment. However, steel slag is not an unusable solid waste, which contains a large amount of usable components such as steel slag, calcium oxide, iron, and magnesium oxide. Therefore, in order to create economic and environmental benefits for steel enterprises, it is necessary and urgent to select a proper treatment process and a proper utilization approach to develop the recycling value of steel slag.
The conventional steel slag treatment process is mainly a two-section rod mill process, an iron remover and a magnetic separator are not jointly used but are only used in a segmented mode, although the process is simple, the recognized concept of 'more crushing and less milling' in the mineral separation industry is violated, a large amount of cost waste of power consumption, steel consumption and the like is caused, the national environment protection is not responded, and the call for cost reduction and efficiency improvement is avoided.
Disclosure of Invention
To the problem that exists among the prior art, the utility model provides a pair of slag low energy consumption recovery processing system through the combined broken slag of jaw breaker and single drive high pressure roller mill, makes the separation of slag and iron, and iron remover and permanent magnetism cylinder combined magnetic separation simultaneously obtain the bold slag steel and the fine iron powder that dissociate in the slag, in time deironing reduces the wearing and tearing of follow-up equipment and reaches cost reduction and efficiency's purpose.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a slag low energy consumption recovery processing system, includes slag steel processing mechanism, slag steel processing mechanism is connected with tailings screening mechanism, tailings screening mechanism is connected with tailings processing mechanism and impurity processing mechanism.
Preferably, slag steel processing mechanism includes the bar sieve, be equipped with the feed inlet on the bar sieve, oversize bold discharge gate and undersize discharge gate, oversize bold discharge gate on the bar sieve is connected with one section thick jaw breaker, one section thick jaw breaker is connected with the second belt, the second belt is connected with tailings screening mechanism, the undersize discharge gate of bar sieve is connected with first belt, first belt all is equipped with the suspension type permanent magnetism de-ironing separator who is used for getting rid of the slag steel with second belt top.
Preferably, the tailings screening mechanism comprises a linear vibrating screen which is connected with a first belt and a second belt simultaneously, an oversize large block discharge port of the linear vibrating screen is connected with a two-section fine jaw crusher, a third belt is arranged between the two-section fine jaw crusher and a feed port of the linear vibrating screen for communication, a undersize discharge port of the linear vibrating screen is connected with a fourth belt, the fourth belt is connected with a three-section vibrating screen for screening tailings, an oversize large block discharge port of the three-section vibrating screen is connected with a single-transmission high-pressure roller mill, the single-transmission high-pressure roller mill is communicated with the three-section vibrating screen for forming closed circulation, and the three-section vibrating screen is connected with a tailings treatment mechanism;
and a first magnetic separator is arranged between the single-transmission high-pressure roller mill and the three sections of vibrating screens for communication, a non-magnetic outlet of the first magnetic separator is communicated with the three sections of vibrating screens, and a magnetic outlet of the first magnetic separator is connected with an impurity treatment mechanism.
Preferably, impurity processing mechanism includes the rod mill, the rod mill is connected with four sections shale shaker, the sieve bottom discharge mouth of four sections shale shaker is connected with the second magnet separator, the oversize bold discharge mouth of four sections shale shaker is connected with the third magnet separator, the non-magnetism export of second magnet separator, the non-magnetism export of third magnet separator all with tailings processing mechanism intercommunication.
Preferably, the first magnetic separator, the second magnetic separator and the third magnetic separator are all set as permanent magnet drum magnetic separators.
Preferably, the tailings treatment mechanism comprises a double-transmission high-pressure roller mill communicated with the three-section vibrating screen, the second magnetic separator and the third magnetic separator respectively, the double-transmission high-pressure roller mill is connected with a static powder concentrator, a light product outlet of the static powder concentrator is connected with an HSF series airflow classifier, a first pipeline is arranged between a heavy product outlet of the static powder concentrator and an inlet of the double-transmission high-pressure roller mill and communicated with each other, a heavy product outlet of the HSF series airflow classifier is connected with a ball mill, a second pipeline is arranged between the ball mill and the inlet of the HSF series airflow classifier and communicated with each other, pipeline type iron removers are arranged in the first pipeline and the second pipeline, and a light product outlet of the HSF series airflow classifier is connected with a bag type dust remover.
The utility model has the advantages of that:
1. the utility model combines the jaw crushing and coarse crushing and the single-drive high-pressure roller grinding fine crushing, and compared with the traditional two-section rod grinding process, the process of adopting the step-by-step crushing can reduce the steel consumption and the power consumption by more than 50 percent year by year;
2. the utility model can be used on the same belt in a combined way according to the characteristics of the iron remover sucking out the large slag steel and the magnetic separation iron concentrate powder of the permanent magnet drum, so that most iron can be selected in time, and the abrasion of subsequent equipment is reduced, thereby achieving the purpose of reducing energy consumption;
3. the utility model adopts the rod mill to grind the roughing iron concentrate, and obtains the final iron concentrate with the total iron grade of more than 50 percent, the total iron grade of the particle steel of more than 85 percent, and the content of the magnetic iron in the tailings is lower than 1 percent;
4. the utility model adopts the combined powder making process of the double-transmission high-pressure roller mill and the ball mill, and fully utilizes the characteristics of low energy consumption, high energy consumption conversion rate and good particle shaping of the ball mill;
5. the utility model discloses in adopt pipeline formula de-ironing separator can prevent effectively that the particle steel from forming the cyclic load accumulation in ball mill closed flow to reduce ball mill energy consumption and equipment wearing and tearing.
Drawings
FIG. 1 is a schematic view of the overall structure of a steel slag low-energy recycling system of the present invention.
In the figure: the device comprises a 1-bar screen, a 2-first belt, a 3-second belt, a 4-suspended permanent magnet iron remover, a 5-linear vibrating screen, a 6-first-section coarse jaw crusher, a 7-second-section fine jaw crusher, an 8-third-section vibrating screen, a 9-single-transmission high-pressure roller mill, a 10-first magnetic separator, a 11-bar mill, a 12-fourth-section vibrating screen, a 13-second magnetic separator, a 14-third magnetic separator, a 15-double-transmission high-pressure roller mill, a 16-static powder concentrator, a 17-HSF series air flow classifier, an 18-ball mill and a 19-pipeline iron remover.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
The steel slag low-energy-consumption recovery processing system comprises a steel slag processing mechanism, wherein the steel slag processing mechanism is connected with a tailing screening mechanism, and the tailing screening mechanism is connected with a tailing processing mechanism and an impurity processing mechanism.
The slag steel treatment mechanism comprises a bar screen 1, a feed inlet, an oversize large discharge port and an undersize discharge port are arranged on the bar screen 1, the oversize large discharge port on the bar screen 1 is connected with a section of coarse jaw crusher 6, the section of coarse jaw crusher 6 is connected with a second belt 3, the second belt 3 is connected with a tailings screening mechanism, the undersize discharge port of the bar screen 1 is connected with a first belt 2, and a suspension type permanent magnet iron remover 4 for removing slag steel is arranged above the first belt 2 and the second belt 3; the tailings screening mechanism comprises a linear vibrating screen 5 which is simultaneously connected with a first belt 2 and a second belt 3, an oversize large block discharge port of the linear vibrating screen 5 is connected with a two-section fine jaw crusher 7, a third belt is arranged between the two-section fine jaw crusher 7 and a feed port of the linear vibrating screen 5 for communication, a undersize discharge port of the linear vibrating screen 5 is connected with a fourth belt, the fourth belt is connected with a three-section vibrating screen 8 for screening tailings, an oversize large block discharge port of the three-section vibrating screen 8 is connected with a single-transmission high-pressure roller mill 9, the single-transmission high-pressure roller mill 9 is communicated with the three-section vibrating screen 8 to form closed circulation, and the three-section vibrating screen 8 is connected with a tailings treatment mechanism; a first magnetic separator 10 is arranged between the single-transmission high-pressure roller mill 9 and the three sections of vibrating screens 8 for communication, a non-magnetic outlet of the first magnetic separator 10 is communicated with the three sections of vibrating screens 8, and a magnetic outlet of the first magnetic separator 10 is connected with an impurity processing mechanism; the impurity treatment mechanism comprises a rod mill 11, the rod mill 11 is connected with a four-section vibrating screen 12, the screen lower discharge port of the four-section vibrating screen 12 is connected with a second magnetic separator 13, the screen upper bulk discharge port of the four-section vibrating screen 12 is connected with a third magnetic separator 14, and the nonmagnetic outlet of the second magnetic separator 13 and the nonmagnetic outlet of the third magnetic separator 14 are both communicated with the tailings treatment mechanism; the first magnetic separator 10, the second magnetic separator 13 and the third magnetic separator 14 are all permanent magnet drum magnetic separators; the tailings treatment mechanism comprises a double-transmission high-pressure roller mill 15 communicated with the three sections of vibrating screens 8, the second magnetic separator 13 and the third magnetic separator 14 respectively, the double-transmission high-pressure roller mill 15 is connected with a static powder concentrator 16, a light product outlet of the static powder concentrator 16 is connected with an HSF series air classifier 17, a first pipeline is arranged between a heavy product outlet of the static powder concentrator 16 and an inlet of the double-transmission high-pressure roller mill 15 and communicated with each other, a heavy product outlet of the HSF series air classifier 17 is connected with a ball mill 18, a second pipeline is arranged between the ball mill 18 and an inlet of the HSF series air classifier 17 and communicated with each other, pipeline iron removers 19 are arranged in the first pipeline and the second pipeline, and a light product outlet of the HSF series air classifier 17 is connected with a bag type dust remover.
The utility model discloses during operation, at first send thermal state slag to bar screen 1 (sieve mesh 240 mm) through the slag bath after cooling hot smoldering pulverization through the forklift, the material of sieve partial is transported to rectilinear vibrating screen 5 (sieve mesh 60 mm) through first belt 2, the material of sieve top part is broken the bold through one section thick jaw breaker 6 and is smashed to qualified smelting granularity, select bold sediment steel through the electromagnetic chuck magnetism, shovel to bar screen 1 circulation after the rest is broken, the product after the breakage is carried to rectilinear vibrating screen 5 (sieve mesh 60 mm) through second belt 3 and is sieved, go into two-section thin jaw breaker 7 fine breakage directly on the sieve, the product after the breakage returns to second belt 3 through the third belt and forms closed cycle; a suspension type permanent magnet iron remover 4 is arranged above the first belt 2 and the second belt 3, the large iron-containing blocks are magnetically separated and collected, and the suspension type permanent magnet iron remover 4 and a permanent magnet roller are used for jointly removing slag steel; then conveying the product screened by the linear vibrating screen 5 to a three-section vibrating screen (screen holes are 10 mm) through a fourth belt conveyor for screening, conveying the product on the screen to a single-transmission high-pressure roller mill 9 for crushing, returning the crushed product to the three-section vibrating screen 8 to form closed cycle, installing a permanent magnetic roller between the single-transmission high-pressure roller mill 9 and the three-section vibrating screen 8 for magnetic separation, allowing nonmagnetic materials to enter the three-section vibrating screen 8 for screening, and allowing the product screened by the three-section vibrating screen 8 to form tailings (MFe is less than 1%); conveying the magnetic separation material to a rod mill 11 for grinding, conveying the ground product to a four-section vibrating screen 12 (with 3mm sieve pores) for screening, and respectively magnetically separating oversize products and undersize products by using a permanent magnet roller to obtain refined iron powder with the total iron grade of more than 50%, particle steel with the total iron grade of more than 85% and tailings; tailings generated by the three-section vibrating screen 8 and tailings generated after magnetic separation by the permanent magnet drum are all conveyed to the double-transmission high-pressure roller mill 15, the discharged material of the double-transmission high-pressure roller mill 15 is conveyed to the static powder concentrator 16 for classification, coarse materials (heavy products) generated by the static powder concentrator 16 return to the double-transmission high-pressure roller mill 15 through a first pipeline, and a pipeline type iron remover 19 is installed in the pipeline to recover particle steel in the tailings; fine materials (light products) generated by the static powder concentrator 16 are conveyed to an HSF series air flow classifier 17, coarse materials (heavy products) generated by the HSF series air flow classifier 17 automatically flow to a ball mill 18, the discharge of the ball mill 18 is conveyed to the HSF series air flow classifier 17 through a second pipeline to form closed circulation, a pipeline type iron remover 19 is also arranged in the second pipeline, and the fine materials (light products) generated by the HSF series air flow classifier 17 are collected through a bag type dust remover.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims (6)

1. The steel slag low-energy-consumption recovery processing system is characterized by comprising a steel slag processing mechanism, wherein the steel slag processing mechanism is connected with a tailing screening mechanism, and the tailing screening mechanism is connected with a tailing processing mechanism and an impurity processing mechanism.
2. The steel slag low-energy-consumption recovery processing system as claimed in claim 1, wherein the steel slag processing mechanism comprises a bar screen, the bar screen is provided with a feeding hole, an oversize large discharge hole and an undersize discharge hole, the oversize large discharge hole is connected with a coarse jaw crusher, the coarse jaw crusher is connected with a second belt, the second belt is connected with a tailings screening mechanism, the undersize discharge hole of the bar screen is connected with a first belt, and a suspended permanent magnet iron remover for removing steel slag is arranged above the first belt and the second belt.
3. The steel slag low-energy-consumption recovery processing system is characterized in that the tailings screening mechanism comprises a linear vibrating screen which is connected with a first belt and a second belt simultaneously, a large oversize material outlet of the linear vibrating screen is connected with a two-stage fine jaw crusher, a third belt is arranged between the two-stage fine jaw crusher and a material inlet of the linear vibrating screen for communication, a lower screen material outlet of the linear vibrating screen is connected with a fourth belt, the fourth belt is connected with a three-stage vibrating screen for screening tailings, an large oversize material outlet of the three-stage vibrating screen is connected with a single-transmission high-pressure roller mill, the single-transmission high-pressure roller mill is communicated with the three-stage vibrating screen to form closed circulation, and the three-stage vibrating screen is connected with a tailings processing mechanism;
and a first magnetic separator is arranged between the single-transmission high-pressure roller mill and the three sections of vibrating screens for communication, a non-magnetic outlet of the first magnetic separator is communicated with the three sections of vibrating screens, and a magnetic outlet of the first magnetic separator is connected with an impurity treatment mechanism.
4. The steel slag low-energy-consumption recovery processing system as claimed in claim 3, wherein the impurity processing mechanism comprises a rod mill, the rod mill is connected with a four-section vibrating screen, the undersize discharge port of the four-section vibrating screen is connected with a second magnetic separator, the oversize large-block discharge port of the four-section vibrating screen is connected with a third magnetic separator, and the nonmagnetic outlet of the second magnetic separator and the nonmagnetic outlet of the third magnetic separator are both communicated with the tailings processing mechanism.
5. The steel slag low-energy-consumption recovery processing system as claimed in claim 4, wherein the first magnetic separator, the second magnetic separator and the third magnetic separator are permanent magnetic roller magnetic separators.
6. The steel slag low-energy-consumption recovery processing system according to claim 5, wherein the tailings processing mechanism comprises a double-transmission high-pressure roller mill which is respectively communicated with the three sections of vibrating screens, the second magnetic separator and the third magnetic separator, the double-transmission high-pressure roller mill is connected with a static powder concentrator, a light product outlet of the static powder concentrator is connected with an HSF series air flow classifier, a first pipeline is arranged between a heavy product outlet of the static powder concentrator and an inlet of the double-transmission high-pressure roller mill for communication, a heavy product outlet of the HSF series air flow classifier is connected with a ball mill, a second pipeline is arranged between the ball mill and the inlet of the HSF series air flow classifier for communication, pipeline type iron removers are respectively arranged in the first pipeline and the second pipeline, and a light product outlet of the HSF series air flow classifier is connected with a bag type dust remover.
CN202022393703.9U 2020-10-26 2020-10-26 Steel slag low energy consumption recovery processing system Active CN212143910U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022393703.9U CN212143910U (en) 2020-10-26 2020-10-26 Steel slag low energy consumption recovery processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022393703.9U CN212143910U (en) 2020-10-26 2020-10-26 Steel slag low energy consumption recovery processing system

Publications (1)

Publication Number Publication Date
CN212143910U true CN212143910U (en) 2020-12-15

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CN (1) CN212143910U (en)

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