CN108188155B - Sorting treatment system and sorting treatment method for incinerator slag - Google Patents
Sorting treatment system and sorting treatment method for incinerator slag Download PDFInfo
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- CN108188155B CN108188155B CN201810136528.XA CN201810136528A CN108188155B CN 108188155 B CN108188155 B CN 108188155B CN 201810136528 A CN201810136528 A CN 201810136528A CN 108188155 B CN108188155 B CN 108188155B
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- magnetic separator
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- 239000002893 slag Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000006148 magnetic separator Substances 0.000 claims abstract description 109
- 229910052751 metal Inorganic materials 0.000 claims abstract description 96
- 239000002184 metal Substances 0.000 claims abstract description 96
- 239000000463 material Substances 0.000 claims abstract description 61
- 238000007885 magnetic separation Methods 0.000 claims abstract description 50
- 239000000725 suspension Substances 0.000 claims abstract description 40
- 238000000926 separation method Methods 0.000 claims abstract description 28
- 241001584775 Tunga penetrans Species 0.000 claims description 102
- 239000000126 substance Substances 0.000 claims description 57
- 239000004576 sand Substances 0.000 claims description 48
- 238000012216 screening Methods 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 18
- 150000002739 metals Chemical class 0.000 claims description 16
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 8
- 239000002351 wastewater Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 235000019580 granularity Nutrition 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- 238000005188 flotation Methods 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000003672 processing method Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 5
- 238000004064 recycling Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/04—General arrangement of separating plant, e.g. flow sheets specially adapted for furnace residues, smeltings, or foundry slags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of separation treatment system of incinerator slag, its belt conveyor discharge gate communicates with first rotary screen feed inlet, the first rotary screen upper material discharge gate communicates with first suspension type magnetic separator feed inlet, the screen lower material discharge gate communicates with second suspension type magnetic separator feed inlet; the magnetic separation discharge port of the first suspension type magnetic separator is communicated with the feed port of the second crusher, the non-magnetic separation discharge port is communicated with the feed port of the first crusher, and the discharge port of the first crusher is communicated with the belt conveyor; the magnetic separation discharge port of the second suspension type magnetic separator is communicated with the feed port of the second crusher, and the non-magnetic separation discharge port is connected with a crushing device; the discharge hole of the second crusher is communicated with the feed hole of the second rotary screen, and the discharge hole of the oversize material of the second rotary screen is connected with a first metal warehouse. The invention also discloses a sorting treatment method of the incinerator slag. The separation processing system and the separation processing method have high metal recovery rate and effectively reduce the waste of resources.
Description
Technical Field
The invention relates to a sorting treatment system and a sorting treatment method for incinerator slag.
Background
With the increasing exhaustion of resources, recycling of resources is becoming more and more important. Since many metal materials exist in the household garbage incinerator slag, people do not directly bury the household garbage incinerator slag any more, but recycle the metal materials in the household garbage incinerator slag by using a treatment system of the household garbage incinerator slag. However, the metal recovery rate of the current treatment system of the household garbage incinerator slag is low, and many metal materials are not recovered, so that the resource waste is indirectly caused.
Therefore, further improvements are needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a sorting treatment system and a sorting treatment method for incinerator slag, which have high metal recovery rate and reduce resource waste.
The purpose of the invention is realized in the following way:
The system comprises a belt conveyor, a first drum screen, a first suspension type magnetic separator, a second suspension type magnetic separator, a first crusher, a second crusher and a second drum screen;
The belt conveyor discharge port is communicated with the first rotary screen feed port, the first rotary screen oversize material discharge port is communicated with the first suspension type magnetic separator feed port, and the undersize material discharge port is communicated with the second suspension type magnetic separator feed port;
The magnetic separation discharge port of the first suspension type magnetic separator is communicated with the feed port of the second crusher, the non-magnetic separation discharge port is communicated with the feed port of the first crusher, and the discharge port of the first crusher is communicated with the belt conveyor;
the magnetic separation discharge port of the second suspension type magnetic separator is communicated with the feed port of the second crusher, and the non-magnetic separation discharge port is connected with a crushing device;
The discharge hole of the second crusher is communicated with the feed hole of the second rotary screen, and the discharge hole of the oversize material of the second rotary screen is connected with a first metal warehouse.
The crushing device comprises a third crusher and a fourth crusher, and the non-magnetic separation discharge port of the second suspension type magnetic separator is respectively communicated with the feed inlet of the third crusher and the feed inlet of the fourth crusher.
The second crusher is a tapping machine, and the third crusher and the fourth crusher are hammer crushers.
The separation treatment system comprises a wet magnetic separation device, wherein the wet magnetic separation device comprises a first wet magnetic separator, a second wet magnetic separator and a third wet magnetic separator;
The feeding hole of the first wet magnetic separator is communicated with the discharging hole of the third crusher, the feeding hole of the second wet magnetic separator is communicated with the discharging hole of the fourth crusher, the feeding hole of the third wet magnetic separator is communicated with the discharging hole of the undersize of the second drum screen, and the magnetic separation discharging holes of the first wet magnetic separator, the second wet magnetic separator and the third wet magnetic separator are connected with a second metal warehouse.
The wet magnetic separation device is connected with a re-separation device and comprises a first jigger, a second jigger, a third jigger, a fourth jigger and a fifth jigger;
The discharge port of the first wet magnetic separator is respectively communicated with the discharge ports of the first jigger and the second jigger, the discharge port of the second wet magnetic separator is respectively communicated with the discharge ports of the third jigger and the fourth jigger, the discharge port of the third wet magnetic separator is communicated with the discharge port of the fifth jigger, and the discharge ports of heavy layered matters of the first jigger, the second jigger, the third jigger and the fourth jigger are communicated with the discharge port of the fifth jigger.
The sorting treatment system comprises a shaking table device, and a metal discharge port of the shaking table device is communicated with a third metal warehouse.
The shaking table device includes a shaking table, no. two shaking tables, no. three shaking tables and No. four shaking tables, and each layering thing discharge gate of No. five jigs communicates with a shaking table and No. two shaking table feed inlets respectively, and a shaking table, no. two shaking tables, no. three shaking tables and No. four shaking table metal discharge gates and No. three metal warehouse intercommunication.
The sorting treatment system comprises a sixth jigger, a third rotary screen, an eddy current nonferrous metal sorting machine and a fifth crusher;
The light layered material discharge port of the first jigger, the second jigger, the third jigger and the fourth jigger is communicated with the third rotary screen feed port;
the screen upper material outlet of the third rotary screen is communicated with the feeding port of the eddy current nonferrous metal sorting machine;
The non-ferrous metal discharge port of the eddy current non-ferrous metal sorting machine is communicated with a non-ferrous metal storage, and the non-ferrous metal discharge port is communicated with the feeding port of the non-ferrous metal crushing machine;
the discharge port of the fifth crusher is communicated with the feed port of the sixth jigger;
the water-sand mixture discharging port of the shaking table device is communicated with the feeding port of the No. six jigger, and the heavy layered material discharging port of the No. six jigger is communicated with the feeding port of the No. three shaking tables and the feeding port of the No. four shaking tables.
The sorting treatment system comprises a first spiral environment-friendly sand dehydrator and a second spiral environment-friendly sand dehydrator, wherein a third rotary screen undersize discharge port is communicated with a first spiral environment-friendly sand dehydrator feed inlet, and a sixth jigger water-sand mixture discharge port is communicated with a second spiral environment-friendly sand dehydrator feed inlet.
The method for sorting the incinerator slag comprises the following steps:
(1) Slag input
A. The slag is placed on a belt conveyor for conveying, a manual sorting station is arranged at the middle section of the belt conveyor, and operators sort out large articles which are not suitable for crushing;
B. The belt conveyor conveys the slag into a first drum screen;
(2) One-stage screening
The first drum screen performs one-stage screening, the oversize material enters a first suspension type magnetic separator, and the undersize material enters a second suspension type magnetic separator;
(3) Magnetic separation in one stage
A1, selecting magnetic substances by a first suspension type magnetic separator, feeding the magnetic substances into a second crusher, and feeding the rest non-magnetic substances into a first crusher;
A2, selecting magnetic substances by a second suspension type magnetic separator, feeding the magnetic substances into a second crusher, and feeding the rest non-magnetic substances into a third crusher and a fourth crusher respectively;
(4) First-stage crushing, second-stage crushing, third-stage crushing and second-stage screening
A1, crushing the nonmagnetic substances for one section by a first crusher, and then conveying the crushed nonmagnetic substances into a first rotary screen again;
a2, the third crusher and the fourth crusher crush the non-magnetic substances in a second stage and then respectively send the non-magnetic substances into a first wet magnetic separator and a second wet magnetic separator;
A3, the second crusher crushes the magnetic substances in three sections and then sends the crushed magnetic substances into a second rotary screen, the second rotary screen performs second-section screening, oversize materials are collected into a first metal warehouse, and undersize materials are sent into a third wet magnetic separator;
(5) Two-stage magnetic separation
A1, a first wet magnetic separator, a second wet magnetic separator and a third wet magnetic separator are used for separating magnetic substances and collecting the magnetic substances into a second metal warehouse;
a2, respectively conveying the rest non-magnetic substances of the first wet magnetic separator into a first jigger and a second jigger, respectively conveying the rest non-magnetic substances of the second wet magnetic separator into a third jigger and a fourth jigger, and conveying the rest non-magnetic substances of the third wet magnetic separator into a fifth jigger;
(6) One-stage reselection, two-stage reselection and three-stage reselection
A. the first jigs and the second jigs perform first-stage reselection, the third jigs and the fourth jigs perform second-stage reselection, the fifth jigs perform third-stage reselection, heavy layered matters of the first-stage reselection and the second-stage reselection are sent to the fifth jigs, and light layered matters are sent to the third rotary screen;
B. each layered object of the fifth jigger is respectively sent to a first table and a second table;
(7) Three-stage screening
A. The third rotary screen is used for three-stage screening, the oversize products are sent to an eddy current nonferrous metal sorting machine, the undersize products are sent to a first spiral environment-friendly sand dehydrator, and the first spiral environment-friendly sand dehydrator respectively outputs environment-friendly sand and wastewater;
(8) Sorting nonferrous metals, four-stage crushing and four-stage reselection
A. The eddy current nonferrous metal sorting machine is used for sorting and separating various nonferrous metals, collecting the nonferrous metals into a fourth metal warehouse, and delivering the rest materials into a fifth crusher;
B. The fifth crusher is used for four-section crushing, and crushed materials are sent to a sixth jigger;
C. The jigging machine six performs four-section reselection, the heavy layered matters are respectively sent to a third table and a fourth table, the light layered matters are sent to a spiral environment-friendly sand dehydrator II, and the spiral environment-friendly sand dehydrator II respectively outputs environment-friendly sand and wastewater;
(9) Separation of shaking table
A1, separating materials with different specific gravities and granularities by a first shaking table, a second shaking table, a third shaking table and a fourth shaking table, outputting the materials to different areas, respectively recovering the materials in the different areas to a third metal warehouse, wherein the third metal warehouse is a metal sorting center for further metal classification, extracting copper, zinc and manganese by a flotation method, extracting iron powder by a magnetic separation method, and manually separating gold and silver;
and A2, a first table, a second table, a third table and a fourth table, and feeding the water and sand mixture separated by the fourth table into a sixth jigger.
The beneficial effects of the invention are as follows:
The separation treatment system and the separation treatment method can carry out harmless and recycling treatment on dangerous incinerator slag, the process is stable, the impact load resistance capability is strong, and the metal recovery capability reaches more than 90% after one-stage screening, one-stage magnetic separation, one-stage crushing, two-stage crushing, three-stage crushing, two-stage screening, two-stage magnetic separation, one-stage reselection, two-stage reselection, three-stage reselection, shaking table separation and three-stage screening.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1, the separation treatment system of the incinerator slag comprises a belt conveyor, a first rotary screen, a first suspension magnetic separator, a second suspension magnetic separator, a first crusher, a second crusher and a second rotary screen;
The belt conveyor discharge port is communicated with the first rotary screen feed port, the first rotary screen oversize material discharge port is communicated with the first suspension type magnetic separator feed port, and the undersize material discharge port is communicated with the second suspension type magnetic separator feed port;
The magnetic separation discharge port of the first suspension type magnetic separator is communicated with the feed port of the second crusher, the non-magnetic separation discharge port is communicated with the feed port of the first crusher, and the discharge port of the first crusher is communicated with the belt conveyor; after the slag (mostly non-magnetic substances) is crushed by a first crusher, the slag is crushed into smaller materials, and then the smaller materials are sent into a first drum screen through a belt conveyor to be separated again, so that the repeated processing capacity of a separation processing system is ensured.
The magnetic separation discharge port of the second suspension type magnetic separator is communicated with the feed port of the second crusher, and the non-magnetic separation discharge port is connected with a crushing device;
the second crusher is used for crushing the magnetic separation substances, so that the magnetic separation substances are convenient to further separate.
The second crusher discharge gate and No. two drum sieve feed inlets intercommunication, no. two drum sieve oversize material discharge gates are connected with a metal storehouse, can separate the iron plate of great spare through the aforesaid structure, and separation efficiency is high.
The roller screen is a machine widely applied in the sorting technology, the sorting precision is high by controlling the size of particles to sort the materials, the roller screen can screen the materials into oversize materials and undersize materials, the undersize materials are fine particles or medium particles, the oversize materials are coarse particles, and the undersize materials are sunk from the screening holes of the roller screen.
The crusher is used for crushing large materials into small materials, so that the subsequent finer sorting work is facilitated.
Further, breaker includes No. three crushers and No. four crushers, and second suspension type magnet separator non-magnetic separation discharge gate communicates with No. three crushers and No. four crusher feed inlets respectively.
Two sets of crushing equipment of the third crusher and the fourth crusher are provided, so that slag is further crushed and becomes smaller materials, subsequent magnetic separation operation is facilitated, and the treatment efficiency of the separation treatment system is improved.
Further, the second crusher is a tapping machine, and the third crusher and the fourth crusher are hammer crushers, which are understood by those skilled in the art.
Further, the separation treatment system comprises a wet magnetic separation device, wherein the wet magnetic separation device comprises a first wet magnetic separator, a second wet magnetic separator and a third wet magnetic separator; the wet magnetic separators are used for effectively improving the treatment efficiency of the separation treatment system, and the first wet magnetic separator, the second wet magnetic separator and the third wet magnetic separator can perform finer magnetic separation operation than the first suspension magnetic separator and the second suspension magnetic separator, so that the separation effect of the separation treatment system is improved.
The feeding hole of the first wet magnetic separator is communicated with the discharging hole of the third crusher, the feeding hole of the second wet magnetic separator is communicated with the discharging hole of the fourth crusher, the feeding hole of the third wet magnetic separator is communicated with the discharging hole of the undersize of the second drum screen, and the magnetic separation discharging holes of the first wet magnetic separator, the second wet magnetic separator and the third wet magnetic separator are connected with a second metal warehouse which mainly recovers iron sand.
Further, the wet magnetic separation device is connected with a re-selection device and comprises a first jigger, a second jigger, a third jigger, a fourth jigger and a fifth jigger; the jigs effectively improve the processing efficiency of the sorting processing system.
The discharge port of the first wet magnetic separator is respectively communicated with the discharge ports of the first jigger and the second jigger, the discharge port of the second wet magnetic separator is respectively communicated with the discharge ports of the third jigger and the fourth jigger, the discharge port of the third wet magnetic separator is communicated with the discharge port of the fifth jigger, and the discharge ports of heavy layered matters of the first jigger, the second jigger, the third jigger and the fourth jigger are communicated with the discharge port of the fifth jigger.
Further, the sorting treatment system comprises a shaking table device, and a metal discharge port of the shaking table device is communicated with a third metal warehouse.
Further, the shaking table device comprises a shaking table I, a shaking table II, a shaking table III and a shaking table IV, wherein each layered object discharge port of the jigging machine V is respectively communicated with a shaking table I and a shaking table II feed inlet, a shaking table I, a shaking table II, a shaking table III and a shaking table IV are communicated with a metal discharge port of a metal warehouse III, and the metal warehouse III is mainly used for recycling copper sand.
Further, the sorting treatment system comprises a sixth jigger, a third rotary screen, an eddy current nonferrous metal sorting machine and a fifth crusher;
The light layered material discharge port of the first jigger, the second jigger, the third jigger and the fourth jigger is communicated with the third rotary screen feed port;
the screen upper material outlet of the third rotary screen is communicated with the feeding port of the eddy current nonferrous metal sorting machine;
The non-ferrous metal discharge port of the eddy current non-ferrous metal sorting machine is communicated with a non-ferrous metal storage, and the non-ferrous metal discharge port is communicated with the feeding port of the non-ferrous metal crushing machine; the fourth metal warehouse mainly recovers aluminum and stainless steel.
The eddy current nonferrous metal separator can realize effective separation and recovery of nonferrous metals, and avoid waste of nonferrous metals.
The discharge port of the fifth crusher is communicated with the feed port of the sixth jigger;
the water-sand mixture discharging port of the shaking table device is communicated with the feeding port of the No. six jigger, and the heavy layered material discharging port of the No. six jigger is communicated with the feeding port of the No. three shaking tables and the feeding port of the No. four shaking tables.
Further, the sorting treatment system comprises a first spiral environment-friendly sand dehydrator and a second spiral environment-friendly sand dehydrator, a third rotary screen undersize discharge port is communicated with a first spiral environment-friendly sand dehydrator feed inlet, and a sixth jigger water-sand mixture discharge port is communicated with a second spiral environment-friendly sand dehydrator feed inlet.
The environment-friendly sand and wastewater output by the first spiral environment-friendly sand dehydrator and the second spiral environment-friendly sand dehydrator can be stored and further treated by the sand settling tank.
The method for sorting and treating the incinerator slag comprises the following steps of:
(1) Slag input
The slag is transported to a slag pool where the slag comprehensive utilization project is located through an automobile for natural stacking, then the slag is filled into a hopper by utilizing a loading tool, and the slag is transported to a belt conveyor below through the hopper.
A. the slag is placed on a belt conveyor for conveying, a manual sorting station is arranged at the middle section of the belt conveyor, and one to two operators sort out large articles which are not suitable for breaking (including large metal, wood and other garbage);
B. The belt conveyor conveys the slag into a first drum screen;
(2) One-stage screening
The first drum screen performs one-stage screening, the oversize material enters a first suspension type magnetic separator, and the undersize material enters a second suspension type magnetic separator;
and (5) selecting out impurities which are not completely combusted in the first rotary screen, collecting the impurities by a factory, and sending the impurities to a waste incineration plant for returning to the incinerator for incineration.
(3) Magnetic separation in one stage
A1, a first suspension type magnetic separator selects magnetic substances (magnetic metals) and sends the magnetic substances (magnetic metals) into a second crusher, and the rest non-magnetic substances are sent into a first crusher; the first suspension type magnetic separator cannot completely separate all magnetic substances, and only a part of the magnetic substances can be recovered.
A2, selecting magnetic substances by a second suspension type magnetic separator, feeding the magnetic substances into a second crusher, and feeding the rest non-magnetic substances into a third crusher and a fourth crusher respectively;
(4) First-stage crushing, second-stage crushing, third-stage crushing and second-stage screening
A1, crushing the nonmagnetic substances for one section by a first crusher, and then conveying the crushed nonmagnetic substances into a first rotary screen again;
a2, the third crusher and the fourth crusher crush the non-magnetic substances in a second stage and then respectively send the non-magnetic substances into a first wet magnetic separator and a second wet magnetic separator;
a3, the second crusher crushes the magnetic substances in three sections and then sends the crushed magnetic substances into a second rotary screen, the second rotary screen performs second-section screening, the oversize materials are collected into a first metal warehouse, mainly iron blocks, and the undersize materials are sent into a third wet magnetic separator;
(5) Two-stage magnetic separation
A1, a first wet magnetic separator, a second wet magnetic separator and a third wet magnetic separator are used for separating magnetic substances and collecting the magnetic substances into a second metal warehouse, and the magnetic substances are mainly iron sand.
A2, respectively conveying the rest non-magnetic substances of the first wet magnetic separator into a first jigger and a second jigger, respectively conveying the rest non-magnetic substances of the second wet magnetic separator into a third jigger and a fourth jigger, and conveying the rest non-magnetic substances of the third wet magnetic separator into a fifth jigger;
The crushed slag after the magnetic separation of the third crusher and the fourth crusher and the first wet magnetic separator, the second wet magnetic separator and the third wet magnetic separator flows into the corresponding gravity separation equipment jigger together with circulating water through sliding grooves uniformly, the jigger uses water as a mineral separation medium, the metal is utilized to separate the sand slag according to the specific gravity, the stroke and the stroke frequency of the jigger can be flexibly adjusted according to the specific gravity of the metal, and the metals such as tungsten, copper, gold, hematite, brown iron, lead, zinc and the like in the slag can be selected.
(6) One-stage reselection, two-stage reselection and three-stage reselection
A. the first jigs and the second jigs perform first-stage reselection, the third jigs and the fourth jigs perform second-stage reselection, the fifth jigs perform third-stage reselection, heavy layered matters of the first-stage reselection and the second-stage reselection are sent to the fifth jigs, and light layered matters are sent to the third rotary screen;
B. each layered object of the fifth jigger is respectively sent to a first table and a second table;
When the jigger works, the groove body is filled with water with a certain height, the movable sieve mechanism in the water is driven by the hydraulic oil cylinder to reciprocate up and down around the pin shaft, and after slag is input into the movable sieve mechanism, a bed layer with a certain thickness is formed on the sieve plate. When the movable screen mechanism ascends, the water medium moves downwards relative to the particles, and when the movable screen mechanism descends, the water medium forms an ascending flow relative to the movable screen mechanism, and the particles perform interference sedimentation in the water medium to realize layering according to density. The layered light layered objects (slag ash and sundries) pass over the overflow weir and fall into the rear end of the lifting wheel, are lifted by the lifting wheel and poured into the upper layer of the chute to be discharged out of the machine body, and directly enter the next working procedure. Heavy layered matters (metals) are discharged from the gangue discharge wheel, fall into the front end of the lifting wheel, are poured into the lower layer of the chute to be discharged out of the machine body after being lifted by the lifting wheel, and are collected and sent to each shaking table for purification and classification in the separation process.
(7) Three-stage screening
A. The third rotary screen is used for three-stage screening, the oversize products are sent to an eddy current nonferrous metal sorting machine, the undersize products are sent to a first spiral environment-friendly sand dehydrator, and the first spiral environment-friendly sand dehydrator respectively outputs environment-friendly sand and wastewater;
(8) Sorting nonferrous metals, four-stage crushing and four-stage reselection
A. The eddy current nonferrous metal sorting machine is used for sorting and separating various nonferrous metals, collecting the nonferrous metals into a fourth metal warehouse, and delivering the rest materials into a fifth crusher;
B. The fifth crusher is used for four-section crushing, and crushed materials are sent to a sixth jigger;
C. The jigging machine six performs four-section reselection, the heavy layered matters are respectively sent to a third table and a fourth table, the light layered matters are sent to a spiral environment-friendly sand dehydrator II, and the spiral environment-friendly sand dehydrator II respectively outputs environment-friendly sand and wastewater;
(9) Separation of shaking table
A1, separating materials with different specific gravities and granularities by a first shaking table, a second shaking table, a third shaking table and a fourth shaking table, outputting the materials to different areas, respectively recovering the materials in different areas to a third metal warehouse, wherein the third metal warehouse is a metal sorting center for further metal classification, extracting copper, zinc and manganese by a flotation method, extracting iron powder by a magnetic separation method, and manually separating gold and silver to achieve the aim of recovering 90% of metals, mainly copper sand.
The material is fed from the feeding groove at the upper corner of each shaking table surface, and the transverse flushing water is supplied from the feeding groove, so that the metal particles are layered according to specific gravity and granularity under the action of inertia and friction force generated by the reciprocating asymmetric motion of the shaking table surface, and longitudinally move along the shaking table surface and transversely move along the inclined table surface. So that ore grains with different specific gravities and particle sizes gradually flow down in a fan shape along the respective movement direction along the diagonal line, are respectively discharged from different areas at the tail part of the shaking table, and are finally recycled to a metal sorting center for further metal classification;
and A2, a first table, a second table, a third table and a fourth table, and feeding the water and sand mixture separated by the fourth table into a sixth jigger.
The separation treatment system and the separation treatment method can carry out harmless and recycling treatment on dangerous incinerator slag, the process is stable, the impact load resistance capability is strong, and the metal recovery capability reaches more than 90% after one-stage screening, one-stage magnetic separation, one-stage crushing, two-stage crushing, three-stage crushing, two-stage screening, two-stage magnetic separation, one-stage reselection, two-stage reselection, three-stage reselection, shaking table separation and three-stage screening.
The above disclosure is illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (7)
1. The separation treatment system of the incinerator slag is characterized by comprising a belt conveyor, a first rotary screen, a first suspension type magnetic separator, a second suspension type magnetic separator, a first crusher, a second crusher and a second rotary screen;
The belt conveyor discharge port is communicated with the first rotary screen feed port, the first rotary screen oversize material discharge port is communicated with the first suspension type magnetic separator feed port, and the undersize material discharge port is communicated with the second suspension type magnetic separator feed port;
The magnetic separation discharge port of the first suspension type magnetic separator is communicated with the feed port of the second crusher, the non-magnetic separation discharge port is communicated with the feed port of the first crusher, and the discharge port of the first crusher is communicated with the belt conveyor;
the magnetic separation discharge port of the second suspension type magnetic separator is communicated with the feed port of the second crusher, and the non-magnetic separation discharge port is connected with a crushing device;
the discharge hole of the second crusher is communicated with the feed hole of the second rotary screen, and the discharge hole of the oversize material of the second rotary screen is connected with a first metal warehouse;
The crushing device comprises a third crusher and a fourth crusher, and a non-magnetic separation discharge port of the second suspension type magnetic separator is respectively communicated with feed inlets of the third crusher and the fourth crusher;
the second crusher is an iron crusher, and the third crusher and the fourth crusher are hammer crushers;
The separation treatment system comprises a wet magnetic separation device, wherein the wet magnetic separation device comprises a first wet magnetic separator, a second wet magnetic separator and a third wet magnetic separator;
The feeding hole of the first wet magnetic separator is communicated with the discharging hole of the third crusher, the feeding hole of the second wet magnetic separator is communicated with the discharging hole of the fourth crusher, the feeding hole of the third wet magnetic separator is communicated with the discharging hole of the undersize of the second drum screen, and the magnetic separation discharging holes of the first wet magnetic separator, the second wet magnetic separator and the third wet magnetic separator are connected with a second metal warehouse.
2. The system for sorting and treating the incineration slag according to claim 1, wherein the wet magnetic separation device is connected with a re-selecting device, and the wet magnetic separation device comprises a first jigger, a second jigger, a third jigger, a fourth jigger and a fifth jigger;
The discharge port of the first wet magnetic separator is respectively communicated with the discharge ports of the first jigger and the second jigger, the discharge port of the second wet magnetic separator is respectively communicated with the discharge ports of the third jigger and the fourth jigger, the discharge port of the third wet magnetic separator is communicated with the discharge port of the fifth jigger, and the discharge ports of heavy layered matters of the first jigger, the second jigger, the third jigger and the fourth jigger are communicated with the discharge port of the fifth jigger.
3. The system for sorting and treating incinerator slag according to claim 2, wherein the system comprises a cradle device, and a metal outlet of the cradle device is communicated with a third metal warehouse.
4. The system according to claim 3, wherein the table device comprises a first table, a second table, a third table and a fourth table, wherein the discharge ports of the layered matters of the fifth jigger are respectively communicated with the feed ports of the first table and the second table, and the metal discharge ports of the first table, the second table, the third table and the fourth table are respectively communicated with the third metal warehouse.
5. The system for sorting and treating incinerator slag according to claim 4, wherein said sorting and treating system comprises a jigger No. six, a third trommel, an eddy current nonferrous metal sorter and a crusher No. five;
The light layered material discharge port of the first jigger, the second jigger, the third jigger and the fourth jigger is communicated with the third rotary screen feed port;
the screen upper material outlet of the third rotary screen is communicated with the feeding port of the eddy current nonferrous metal sorting machine;
The non-ferrous metal discharge port of the eddy current non-ferrous metal sorting machine is communicated with a non-ferrous metal storage, and the non-ferrous metal discharge port is communicated with the feeding port of the non-ferrous metal crushing machine;
the discharge port of the fifth crusher is communicated with the feed port of the sixth jigger;
the water-sand mixture discharging port of the shaking table device is communicated with the feeding port of the No. six jigger, and the heavy layered material discharging port of the No. six jigger is communicated with the feeding port of the No. three shaking tables and the feeding port of the No. four shaking tables.
6. The system for sorting and treating incineration slag according to claim 5, wherein the system for sorting and treating incineration slag comprises a first spiral environment-friendly sand dehydrator and a second spiral environment-friendly sand dehydrator, a third rotary screen undersize discharge port is communicated with a feed port of the first spiral environment-friendly sand dehydrator, and a sixth jigging machine water-sand mixture discharge port is communicated with a feed port of the second spiral environment-friendly sand dehydrator.
7. A method for sorting and treating an incinerator slag, comprising the system for sorting and treating an incinerator slag according to any one of claims 1 to 6, comprising the steps of:
(1) Slag input
A. The slag is placed on a belt conveyor for conveying, a manual sorting station is arranged at the middle section of the belt conveyor, and operators sort out large articles which are not suitable for crushing;
B. The belt conveyor conveys the slag into a first drum screen;
(2) One-stage screening
The first drum screen performs one-stage screening, the oversize material enters a first suspension type magnetic separator, and the undersize material enters a second suspension type magnetic separator;
(3) Magnetic separation in one stage
A1, selecting magnetic substances by a first suspension type magnetic separator, feeding the magnetic substances into a second crusher, and feeding the rest non-magnetic substances into a first crusher;
A2, selecting magnetic substances by a second suspension type magnetic separator, feeding the magnetic substances into a second crusher, and feeding the rest non-magnetic substances into a third crusher and a fourth crusher respectively;
(4) First-stage crushing, second-stage crushing, third-stage crushing and second-stage screening
A1, crushing the nonmagnetic substances for one section by a first crusher, and then conveying the crushed nonmagnetic substances into a first rotary screen again;
a2, the third crusher and the fourth crusher crush the non-magnetic substances in a second stage and then respectively send the non-magnetic substances into a first wet magnetic separator and a second wet magnetic separator;
A3, the second crusher crushes the magnetic substances in three sections and then sends the crushed magnetic substances into a second rotary screen, the second rotary screen performs second-section screening, oversize materials are collected into a first metal warehouse, and undersize materials are sent into a third wet magnetic separator;
(5) Two-stage magnetic separation
A1, a first wet magnetic separator, a second wet magnetic separator and a third wet magnetic separator are used for separating magnetic substances and collecting the magnetic substances into a second metal warehouse;
a2, respectively conveying the rest non-magnetic substances of the first wet magnetic separator into a first jigger and a second jigger, respectively conveying the rest non-magnetic substances of the second wet magnetic separator into a third jigger and a fourth jigger, and conveying the rest non-magnetic substances of the third wet magnetic separator into a fifth jigger;
(6) One-stage reselection, two-stage reselection and three-stage reselection
A. The first jigs and the second jigs perform first-stage reselection, the third jigs and the fourth jigs perform second-stage reselection,
The fifth jigger performs three-stage reselection, heavy layered matters of the first-stage reselection and the second-stage reselection are sent to the fifth jigger, and light layered matters are sent to a third rotary screen;
B. each layered object of the fifth jigger is respectively sent to a first table and a second table;
(7) Three-stage screening
A. The third rotary screen is used for three-stage screening, the oversize products are sent to an eddy current nonferrous metal sorting machine, the undersize products are sent to a first spiral environment-friendly sand dehydrator, and the first spiral environment-friendly sand dehydrator respectively outputs environment-friendly sand and wastewater;
(8) Sorting nonferrous metals, four-stage crushing and four-stage reselection
A. The eddy current nonferrous metal sorting machine is used for sorting and separating various nonferrous metals, collecting the nonferrous metals into a fourth metal warehouse, and delivering the rest materials into a fifth crusher;
B. The fifth crusher is used for four-section crushing, and crushed materials are sent to a sixth jigger;
C. The jigging machine six performs four-section reselection, the heavy layered matters are respectively sent to a third table and a fourth table, the light layered matters are sent to a spiral environment-friendly sand dehydrator II, and the spiral environment-friendly sand dehydrator II respectively outputs environment-friendly sand and wastewater;
(9) Separation of shaking table
A1, separating materials with different specific gravities and granularities by a first shaking table, a second shaking table, a third shaking table and a fourth shaking table, outputting the materials to different areas, respectively recovering the materials in the different areas to a third metal warehouse, wherein the third metal warehouse is a metal sorting center for further metal classification, extracting copper, zinc and manganese by a flotation method, extracting iron powder by a magnetic separation method, and manually separating gold and silver;
and A2, a first table, a second table, a third table and a fourth table, and feeding the water and sand mixture separated by the fourth table into a sixth jigger.
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