CN216499992U - Waste incinerator slag treatment system - Google Patents

Abstract

The utility model discloses a waste incineration slag treatment system which comprises an iron recovery system, a copper recovery system, an aluminum recovery system, a sand making system and a tailing treatment system. Compared with the prior art, the utility model has the advantages that different metal objects are respectively recycled in different times according to different particle sizes through multiple crushing, grading and sorting in the process of treating the waste incineration slag, the recycling efficiency is high, the impurity removal rate is high, the sand making purity is high, and the economic effect is obvious; meanwhile, the treatment process belongs to a wet process, a large amount of water is required to be used, all processes are closely connected, water resources are recycled in the process flow, meanwhile, a settling barrel and a pressure filter are additionally arranged, the water resources are effectively recovered, water is saved, the environment is protected, and efficient utilization of energy is achieved.

Description

Waste incinerator slag treatment system

Technical Field

The utility model relates to the field of metal recovery, in particular to a waste incinerator slag treatment system.

Background

With the continuous enhancement of the environmental awareness of people and the improvement of comprehensive resource utilization technology, the proportion of domestic garbage treatment by adopting incineration technology in all countries in the world is increasing year by year, the generation amount of slag is increased, and higher requirements on better slag treatment are provided.

The slag after the garbage incineration is an associated byproduct in the household garbage incineration process, mainly comprises ceramics, stones, slag, glass, waste metals and unburnt combustibles, has the components mainly similar to the components of building natural aggregates, can be used as regenerated aggregates to replace the natural aggregates to be applied to multiple fields of municipal traffic (such as baking-free bricks, permeable bricks and backfill materials), building engineering (such as regenerated concrete) and the like, and the mixed metals can be recycled, so that the slag is effectively treated and comprehensively utilized to create great economic value and social benefit.

However, the metal recovery equipment in the prior art has low metal recovery rate, and can not recover a plurality of metals at the same time to prepare sand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a waste incineration slag treatment system and method, which greatly improve the metal recovery rate and the sand making purity, save water and protect the environment.

In order to achieve the purpose, the utility model is implemented according to the following technical scheme:

the utility model provides a waste incineration slag treatment system, which comprises an iron recovery system, a copper recovery system, an aluminum recovery system, a sand making system and a tailing treatment system;

the iron recovery system comprises a feeding hopper, a first cylindrical sieve, a second cylindrical sieve, a first crusher, a second crusher, a third crusher, a first magnetic separator, a second magnetic separator, a third magnetic separator, a fourth magnetic separator, a fifth magnetic separator, a first jigger, a second jigger, a first iron remover, a first shaking table, a second shaking table and a third settling barrel; the feeding hopper conveys the slag to a first cylindrical sieve through a first belt conveyor, undersize of the first cylindrical sieve is conveyed to a first crusher through a second belt conveyor, the crushed undersize is conveyed to a first magnetic separator by the first crusher, concentrate selected by the first magnetic separator is conveyed to a second cylindrical sieve, and tailings selected by the first magnetic separator are conveyed to a first jigger; oversize materials of the first cylindrical screen are conveyed to a second crusher through a third belt conveyor, a first iron remover is arranged above the third belt conveyor, iron sucked out by the first iron remover is conveyed to the third crusher through a fourth belt conveyor, and is conveyed to a second magnetic separator after being crushed by the third crusher; the concentrate separated by the second magnetic separator is conveyed to a second cylindrical sieve, and the tailings separated by the second magnetic separator are conveyed to a second jigger; discharging oversize materials separated by the second cylindrical sieve into large iron pieces, and separating iron powder from undersize materials by a fourth magnetic separator; the underflow after the separation of the first jigger and the second jigger enters a third magnetic separator to separate iron powder, tailings separated by the third magnetic separator and a fourth magnetic separator are respectively conveyed to a first shaking table and a second shaking table, concentrate separated by the shaking tables is conveyed to a fifth magnetic separator to separate iron powder again, and tailings separated by the shaking tables are conveyed to a third settling barrel;

the copper recovery system comprises a first vibrating feeder, a third cylindrical screen, a fourth crusher, a third shaking table and a pit; after being sorted by the first jigger and the second jigger, materials in the groove are taken out and enter a gold-selecting platform, a third cylindrical screen is conveyed by the first vibrating feeder after airing and sorting processes, oversize materials of the third cylindrical screen are large copper, undersize materials of the third cylindrical screen are conveyed to a fourth crusher for crushing, the crushed materials are conveyed to a fifth magnetic separator for separating iron powder again, tailings separated by the fifth magnetic separator are conveyed to a third shaking table for separating crushed copper, and tailings separated by the third shaking table are conveyed to a pit;

the aluminum recovery system comprises a skip screen, a first settling barrel, a first vortex separator, a fifth crusher and a second vortex separator; the materials are sorted by a first jigger and a second jigger, the overflow part is conveyed to a skip screen, the size of the screen hole of the screen plate of the skip screen is divided into four specifications of 0-2mm, 2-8mm, 8-30mm and more than 30mm according to the granularity level of the materials, and the materials with the size of 0-2mm enter a first settling barrel; selecting the material with the thickness of more than 30mm by hand, and sorting out metal; conveying 8-30mm materials to a first vortex separator to separate aluminum, and conveying tailings separated by the first vortex separator to a fifth crusher to prepare medium sand; conveying the 2-8mm materials to a second vortex sorting machine to sort out aluminum, wherein tailings obtained through second vortex sorting are medium sand;

the sand making system comprises a second settling barrel, a first high-frequency sieve, a large settling barrel, a second high-frequency sieve and a third high-frequency sieve; conveying the material overflow part in the first settling barrel to a second settling barrel; the bottom flow of the first settling barrel is conveyed to a first high-frequency sieve for sieving, the oversize is fine sand, and the undersize is conveyed to a pit; the material overflow part in the third settling barrel is conveyed to the large settling barrel; the bottom flow of the third settling barrel is conveyed to a third high-frequency sieve for sieving, the oversize product of the third high-frequency sieve is fine sand, and the undersize product of the third high-frequency sieve is conveyed to a pit; conveying materials in the pit into a second settling barrel by using a pump, conveying an overflow part of the second settling barrel to a large settling barrel, conveying an underflow of the second settling barrel to a second high-frequency sieve for sieving, wherein oversize products of the second high-frequency sieve are fine sand, and undersize products of the second high-frequency sieve are conveyed to the large settling barrel;

the tailings treatment system comprises a large clear water barrel and a filter press; and the material in the large settling barrel overflows and is conveyed to a large clear water barrel, the bottom flow of the large settling barrel is conveyed to a filter press to press out water and is conveyed to the large clear water barrel, and a filter cake is recovered.

The second purpose of the utility model is to provide a waste incineration slag treatment method, which utilizes the waste incineration slag treatment system to treat waste incineration slag, and the specific process comprises the following steps:

recovering iron: the feeding hopper conveys the slag to a first cylindrical screen through a first belt conveyor, and large iron pieces and iron wires are manually sorted out on the first belt conveyor; undersize of the first cylindrical sieve is conveyed to a first crusher through a second belt conveyor, the crushed undersize is conveyed to a first magnetic separator by the first crusher, concentrate selected by the first magnetic separator is conveyed to a second cylindrical sieve, and tailings selected by the first magnetic separator are conveyed to a first jigger; oversize materials of the first cylindrical screen are conveyed to a second crusher through a third belt conveyor, a first iron remover is arranged above the third belt conveyor, iron sucked out by the first iron remover is conveyed to the third crusher through a fourth belt conveyor, and is conveyed to a second magnetic separator after being crushed by the third crusher; the concentrate separated by the second magnetic separator is conveyed to a second cylindrical sieve, and the tailings separated by the second magnetic separator are conveyed to a second jigger; discharging oversize materials separated by the second cylindrical sieve into large iron pieces, and separating iron powder from undersize materials by a fourth magnetic separator; the underflow after the separation of the first jigger and the second jigger enters a third magnetic separator to separate iron powder, tailings separated by the third magnetic separator and a fourth magnetic separator are respectively conveyed to a first shaking table and a second shaking table, concentrate separated by the shaking tables is conveyed to a fifth magnetic separator to separate iron powder again, and tailings separated by the shaking tables are conveyed to a third settling barrel;

and (3) recovering copper: after being sorted by the first jigger and the second jigger, materials in the groove are taken out and enter a gold-selecting platform, a third cylindrical screen is conveyed by the first vibrating feeder after airing and sorting processes, oversize materials of the third cylindrical screen are large copper, undersize materials of the third cylindrical screen are conveyed to a fourth crusher for crushing, the crushed materials are conveyed to a fifth magnetic separator for separating iron powder again, tailings separated by the fifth magnetic separator are conveyed to a third shaking table for separating crushed copper, and tailings separated by the third shaking table are conveyed to a pit;

and (3) recovering aluminum: the materials are sorted by a first jigger and a second jigger, the overflow part is conveyed to a skip screen, the size of the screen hole of the screen plate of the skip screen is divided into four specifications of 0-2mm, 2-8mm, 8-30mm and more than 30mm according to the granularity level of the materials, and the materials with the size of 0-2mm enter a first settling barrel; selecting the material with the thickness of more than 30mm by hand, and sorting out metal; conveying 8-30mm materials to a first vortex separator to separate aluminum, and conveying tailings separated by the first vortex separator to a fifth crusher to prepare medium sand; conveying the 2-8mm materials to a second vortex sorting machine to sort out aluminum, wherein tailings obtained through second vortex sorting are medium sand;

sand making: conveying the material overflow part in the first settling barrel to a second settling barrel; the bottom flow of the first settling barrel is conveyed to a first high-frequency sieve for sieving, the oversize is fine sand, and the undersize is conveyed to a pit; the material overflow part in the third settling barrel is conveyed to the large settling barrel; the bottom flow of the third settling barrel is conveyed to a third high-frequency sieve for sieving, the oversize product of the third high-frequency sieve is fine sand, and the undersize product of the third high-frequency sieve is conveyed to a pit; conveying materials in the pit into a second settling barrel by using a pump, conveying an overflow part of the second settling barrel to a large settling barrel, conveying an underflow of the second settling barrel to a second high-frequency sieve for sieving, wherein oversize products of the second high-frequency sieve are fine sand, and undersize products of the second high-frequency sieve are conveyed to the large settling barrel;

treating tailings: and the overflow of the materials in the large settling barrel is conveyed to a large clear water barrel for recycling, the bottom flow of the large settling barrel is conveyed to a filter press to press out water and is conveyed to the large clear water barrel, and the filter cake is recycled.

Compared with the prior art, the utility model has the advantages that different metal objects are respectively recycled in different grades according to different particle sizes through multiple crushing, grading and sorting in the process of treating the waste incineration slag, the recycling efficiency is high, the impurity removal rate is high, the purity of the produced sand is high, and the economic effect is obvious; meanwhile, the treatment process belongs to a wet process, a large amount of water is required to be used, all processes are closely connected, water resources are recycled in the process flow, a settling barrel and a filter press are additionally arranged, the water resources are effectively recycled, water is saved, the environment is protected, and efficient utilization of energy is achieved.

Drawings

FIG. 1 is a flow chart of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model.

As shown in fig. 1, the embodiment discloses a waste incineration slag treatment system and a method, which comprises an iron recovery system, a copper recovery system, an aluminum recovery system, a sand making system and a tailings treatment system;

the iron recovery system comprises a feeding hopper 1, a first cylindrical sieve 3, a second cylindrical sieve 7, a first crusher 5, a second crusher 38, a third crusher 36, a first magnetic separator 6, a second magnetic separator 35, a third magnetic separator 9, a fourth magnetic separator 10, a fifth magnetic separator 29, a first jigger 8, a second jigger 34, a first iron remover 39, a first shaking table 18, a second shaking table 17 and a third settling barrel 12; the iron recovery can be realized through an iron recovery system, and the specific recovery process is as follows:

the feeding hopper 1 conveys slag to a first cylindrical sieve 3 through a first belt conveyor 2, undersize of the first cylindrical sieve 3 is conveyed to a first crusher 5 through a second belt conveyor 4, the crushed undersize is conveyed to a first magnetic separator 6 by the first crusher 5, concentrate selected by the first magnetic separator 6 is conveyed to a second cylindrical sieve 7, and tailings selected by the first magnetic separator 6 are conveyed to a first jigger 8; oversize materials of the first cylindrical screen 3 are conveyed to a second crusher 38 through a third belt conveyor 40, a first iron remover 39 is arranged above the third belt conveyor 40, iron sucked out by the first iron remover 39 is conveyed to a third crusher 36 through a fourth belt conveyor 37, and is conveyed to a second magnetic separator 35 after being crushed by the third crusher 36; the concentrate separated by the second magnetic separator 35 is conveyed to the second cylindrical sieve 7, and the tailings separated by the second magnetic separator 35 are conveyed to the second jigger 34; the oversize material separated by the second cylindrical sieve 7 is discharged into large iron pieces, and the undersize material is separated by a fourth magnetic separator 10 to obtain iron powder; the underflow after being sorted by the first jigger 8 and the second jigger 34 enters a third magnetic separator 9 to sort iron powder, tailings sorted by the third magnetic separator 9 and a fourth magnetic separator 10 are respectively conveyed to a first shaking table 18 and a second shaking table 17, concentrate sorted by the shaking tables is conveyed to a fifth magnetic separator 29 to sort iron powder again, and tailings sorted by the shaking tables are conveyed to a third settling barrel 12;

the copper recovery system comprises a first vibrating feeder 32, a third cylindrical screen 31, a fourth crusher 30, a third shaking table 28 and a pit 27; the copper can be recovered through a copper recovery system, and the specific recovery process is as follows:

after being sorted by the first jigger 8 and the second jigger 34, materials in the groove are taken out and enter a gold-selecting platform, after airing and sorting processes, the materials are conveyed to a third cylindrical screen 31 by a first vibrating feeder 32, oversize materials of the third cylindrical screen 31 are large copper, undersize materials of the third cylindrical screen 31 are conveyed to a fourth crusher 30 for crushing, the crushed materials are conveyed to a fifth magnetic separator 29 for separating iron powder again, tailings separated by the fifth magnetic separator 29 are conveyed to a third shaking table 28 for separating crushed copper, and tailings separated by the third shaking table 28 are conveyed to a pit 27;

the aluminum recovery system comprises a skip screen 21, a first settling barrel 20, a first vortex separator 23, a fifth crusher 24 and a second vortex separator 22; the recovery of aluminum can be realized through an aluminum recovery system, and the specific recovery process is as follows:

the materials are sorted by the first jigger 8 and the second jigger 34, the overflow part is conveyed to the skip-in screen 21, the screen hole size of the screen plate of the skip-in screen 21 is divided into four specifications of 0-2mm, 2-8mm, 8-30mm and more than 30mm according to the material granularity grade, and the 0-2mm materials enter a first settling barrel; selecting the material with the thickness of more than 30mm by hand, and sorting out metal; conveying 8-30mm materials to a first vortex separator to separate aluminum, and conveying tailings separated by the first vortex separator to a fifth crusher to prepare medium sand; conveying the 2-8mm materials to a second vortex sorting machine to sort out aluminum, wherein tailings obtained through second vortex sorting are medium sand;

the sand making system comprises a second settling barrel 25, a first high-frequency sieve 20, a large settling barrel 13, a second high-frequency sieve 26 and a third high-frequency sieve 16; the material overflow in the first settling barrel 20 is conveyed to the second settling barrel 25; the underflow of the first settling barrel 20 is conveyed to a first high-frequency sieve 20 for sieving, the oversize is fine sand, and the undersize is conveyed to a pit; the material overflow part in the third settling barrel 12 is conveyed to a large settling barrel 13; the underflow of the third settling barrel 12 is conveyed to a third high-frequency screen 16 for screening, the oversize product of the third high-frequency screen 16 is fine sand, and the undersize product of the third high-frequency screen 16 is conveyed to a pit 27; the materials in the pit 27 are conveyed to a second settling barrel 25 by a pump, the overflow part of the second settling barrel 25 is conveyed to the large settling barrel 13, the underflow of the second settling barrel 25 is conveyed to a second high-frequency sieve 26 for sieving, the oversize product of the second high-frequency sieve 26 is fine sand, and the undersize product of the second high-frequency sieve 26 is conveyed to the large settling barrel 13;

the tailings treatment system comprises a large clear water barrel 14 and a filter press 15; the material in the large settling barrel 13 overflows and is conveyed to a large clear water barrel 14 for recycling, the bottom flow of the large settling barrel 13 is conveyed to a filter press 15 to press out water and is conveyed to the large clear water barrel 14, and filter cakes are recycled.

Through the operation, the recovery of iron, copper and aluminum can be realized, the sand can be prepared, and the complete recovery of the waste incineration slag is realized.

The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.

Claims (1)

1. A waste incineration slag treatment system is characterized by comprising an iron recovery system, a copper recovery system, an aluminum recovery system, a sand making system and a tailing treatment system;

the iron recovery system comprises a feeding hopper, a first cylindrical sieve, a second cylindrical sieve, a first crusher, a second crusher, a third crusher, a first magnetic separator, a second magnetic separator, a third magnetic separator, a fourth magnetic separator, a fifth magnetic separator, a first jigger, a second jigger, a first iron remover, a first shaking table, a second shaking table and a third settling barrel; the feeding hopper conveys the slag to a first cylindrical sieve through a first belt conveyor, undersize of the first cylindrical sieve is conveyed to a first crusher through a second belt conveyor, the crushed undersize is conveyed to a first magnetic separator by the first crusher, concentrate selected by the first magnetic separator is conveyed to a second cylindrical sieve, and tailings selected by the first magnetic separator are conveyed to a first jigger; oversize materials of the first cylindrical screen are conveyed to a second crusher through a third belt conveyor, a first iron remover is arranged above the third belt conveyor, iron sucked out by the first iron remover is conveyed to the third crusher through a fourth belt conveyor, and is conveyed to a second magnetic separator after being crushed by the third crusher; the concentrate separated by the second magnetic separator is conveyed to a second cylindrical sieve, and the tailings separated by the second magnetic separator are conveyed to a second jigger; discharging oversize materials separated by the second cylindrical sieve into large iron pieces, and separating iron powder from undersize materials by a fourth magnetic separator; the underflow after the separation of the first jigger and the second jigger enters a third magnetic separator to separate iron powder, tailings separated by the third magnetic separator and a fourth magnetic separator are respectively conveyed to a first shaking table and a second shaking table, concentrate separated by the shaking tables is conveyed to a fifth magnetic separator to separate iron powder again, and tailings separated by the shaking tables are conveyed to a third settling barrel;

the copper recovery system comprises a first vibrating feeder, a third cylindrical screen, a fourth crusher, a third shaking table and a pit; after being sorted by the first jigger and the second jigger, materials in the groove are taken out and enter a gold-selecting platform, a third cylindrical screen is conveyed by the first vibrating feeder after airing and sorting processes, oversize materials of the third cylindrical screen are large copper, undersize materials of the third cylindrical screen are conveyed to a fourth crusher for crushing, the crushed materials are conveyed to a fifth magnetic separator for separating iron powder again, tailings separated by the fifth magnetic separator are conveyed to a third shaking table for separating crushed copper, and tailings separated by the third shaking table are conveyed to a pit;

the aluminum recovery system comprises a skip screen, a first settling barrel, a first vortex separator, a fifth crusher and a second vortex separator; the materials are sorted by a first jigger and a second jigger, the overflow part is conveyed to a skip screen, the size of the screen hole of the screen plate of the skip screen is divided into four specifications of 0-2mm, 2-8mm, 8-30mm and more than 30mm according to the granularity level of the materials, and the materials with the size of 0-2mm enter a first settling barrel; selecting the material with the thickness of more than 30mm by hand, and sorting out metal; conveying 8-30mm materials to a first vortex separator to separate aluminum, and conveying tailings separated by the first vortex separator to a fifth crusher to prepare medium sand; conveying the 2-8mm materials to a second vortex separator to separate aluminum, wherein tailings separated by the second vortex separator are medium sand;

the sand making system comprises a second settling barrel, a first high-frequency sieve, a large settling barrel, a second high-frequency sieve and a third high-frequency sieve; conveying the material overflow part in the first settling barrel to a second settling barrel; the bottom flow of the first settling barrel is conveyed to a first high-frequency sieve for sieving, the oversize is fine sand, and the undersize is conveyed to a pit; the material overflow part in the third settling barrel is conveyed to the large settling barrel; the bottom flow of the third settling barrel is conveyed to a third high-frequency sieve for sieving, the oversize product of the third high-frequency sieve is fine sand, and the undersize product of the third high-frequency sieve is conveyed to a pit; conveying materials in the pit into a second settling barrel by using a pump, conveying an overflow part of the second settling barrel to a large settling barrel, conveying an underflow of the second settling barrel to a second high-frequency sieve for sieving, wherein oversize products of the second high-frequency sieve are fine sand, and undersize products of the second high-frequency sieve are conveyed to the large settling barrel;

the tailings treatment system comprises a large clear water barrel and a filter press; and the material in the large settling barrel overflows and is conveyed to a large clear water barrel, the bottom flow of the large settling barrel is conveyed to a filter press to press out water and is conveyed to the large clear water barrel, and a filter cake is recovered.

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