CN106179674B - One kind steel-making tailings recycling recoverying and utilizing method and system - Google Patents
One kind steel-making tailings recycling recoverying and utilizing method and system Download PDFInfo
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- CN106179674B CN106179674B CN201610539634.3A CN201610539634A CN106179674B CN 106179674 B CN106179674 B CN 106179674B CN 201610539634 A CN201610539634 A CN 201610539634A CN 106179674 B CN106179674 B CN 106179674B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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Abstract
The invention discloses one kind steel-making tailings recycling recoverying and utilizing method and system, pass through rational design, three kinds of jaw crusher, impact crusher and vibrating screen output specification particle diameter tailings can be passed through, the tailings that wherein particle diameter is the tailings of 10mm 15mm and particle diameter is 4.75mm 10mm can be used for the coarse aggregate in concrete mix, particle diameter is that the tailings of 0 4.75mm can be can be also used for blending and be entered clinker with the fine aggregate in concrete mix, the tailings of three kinds of particle diameters；Slag fine powder is magneticly elected by dry-dressing machine, smelting iron and steel system is returned and smelts recycling metallic iron again；By iron remover output particle steel, further such that tailings recycling recycling output has more the product of economic value；The present invention turns waste into wealth, and not only solves the problems, such as environmental pollution, but also solve the problems, such as the wasting of resources.
Description
Technical field
The present invention relates to secondary resource recovery technology field, more particularly, to one kind steel-making tailings recycling recycling side
Method and system.
Background technology
Slag is the slag of steel-making discharge, is divided into vessel slag, open hearth slag and electroslag according to the type of furnace；Discharge rate is about crude steel production
The 15%~20% of amount；Mainly it is made of the oxide of calcium, iron, silicon, magnesium and a small amount of aluminium, manganese, phosphorus etc.；Main mineral facies are silicon
Sour tricalcium, dicalcium silicate, monticellite, calcium and magnesium rhodonite, calcium aluminoferrite and silicon, magnesium, iron, manganese, the oxide shape of phosphorus
Into solid solution, also containing a small amount of free calcium oxide and metallic iron, fluor-apatite etc..Some areas because of ore titaniferous and vanadium,
Also these components are slightly contained in slag.The content of various composition is because of the steel-making type of furnace, steel grade and per the stove steel smelting stage in slag
Difference, have larger difference.
At present, iron and steel enterprise can use part iron in ore-dressing technique recycling slag, two kinds of products of output more：Slag selects high-grad iron ore deposit
And tailings, wherein slag select high-grad iron ore deposit to return to smelting system, continue to recycle metallic iron therein, there has been no economy for remaining tailings
Rational processing mode, mostly at present is stockpiling, not only pollutes environment, but also waste of resource.
Therefore, how to provide a set of method that can be effectively recycled to steel-making tailings or system is this area
The technical problem of technical staff's urgent need to resolve.
The content of the invention
It is an object of the invention to provide one kind to make steel tailings recycling recoverying and utilizing method, and this method can will make steel tail
Slag is processed into a variety of useful products, and applied to industries such as cement and buildings, the product of Partial Species can also return to steel smelting
Refining system is smelted again, to recycle metallic iron therein, has higher practicality and economy.Present invention also offers one kind
The system for realizing above-mentioned steel-making tailings recycling recoverying and utilizing method.
To solve above-mentioned technical problem, technical solution provided by the invention is：
One kind steel-making tailings recycling recoverying and utilizing method, comprises the following steps：
1) tailings jaw crushing crusher machine will be made steel；
2) tailings in step 1) after the jaw crushing crusher machine is subjected to broken and shaping with impact crusher
Processing；
3) tailings in step 2) after the impact crusher crushes shaping is sent into No. 1 vibrating screen and carries out 15mm grades
The screening process of other particle diameter, returns the impact crusher by the oversize foldback of No. 1 vibrating screen and is crushed again；
4) screenings of No. 1 vibrating screen in step 3) is sent to No. 2 vibrating screens to the sieve for carrying out 10mm rank particle diameters
Office is managed, and the oversize of No. 2 vibrating screens then is sent into No. 1 dry-dressing machine carries out magnetic separation output slag fine powder, then again will
Tailings after No. 1 dry-dressing machine magnetic separation handles output particle steel with iron remover, then by this step through the iron remover
Tailings after processing is sent into No. 1 feed bin storage；
5) screenings of No. 2 vibrating screens in step 4) is sent to No. 3 vibrating screens and carries out 4.75mm rank particle diameters
Screening process, then send the oversize of No. 3 vibrating screens into No. 2 dry-dressing machines and carries out magnetic separation output slag fine powder, Ran Houzai
By the tailings after No. 2 dry-dressing machine magnetic separation with iron remover handle output particle steel, then by this step through the iron removaling
Tailings after device processing is sent into No. 2 feed bin storages；
6) screenings of No. 3 vibrating screens is sent into No. 3 dry-dressing machines and carries out magnetic separation output slag fine powders, then again will be through
Tailings after No. 3 dry-dressing machine magnetic separation handles output particle steel with iron remover, then by this step through the iron remover at
Tailings after reason is sent into No. 3 feed bin storages.
Preferably, the tailings includes following components in percentage by weight：6.0%~8.0% SiO2；12.5%~
16.5% Al2O3；18.5%~25% Fe2O3；39%~42% CaO；5.5%~10.5% MgO；0.3%~
0.5% S；Remaining is inevitable impurity.
The present invention also provides a kind of system for realizing above-mentioned steel-making tailings recycling recoverying and utilizing method, including for pair
Tailings carries out the jaw crusher of coarse crushing；
Further include the impact crusher for carrying out broken shaping to tailings；
Further include No. 1 vibration sieved for the tailings of the 15mm rank particle diameters to the impact crusher output
Sieve, for the 10mm rank particle diameters to the impact crusher output tailings sieved No. 2 vibrating screens, for institute
State No. 3 vibrating screens that the tailings of the 4.75mm rank particle diameters of impact crusher output is sieved；
Further include for containing No. 1 feed bin that particle diameter is 10mm-15mm tailings, be 4.75mm-10mm for containing particle diameter
No. 2 feed bins of tailings, for contain particle diameter be 0-4.75mm tailings No. 3 feed bins；
Further include to crush the tailings after shaping carry out No. 1 dry-dressing machine of magnetic separation output slag fine powder, No. 2 dry-dressing machines and
No. 3 dry-dressing machines；
Further include several to the tailings after No. 1 dry-dressing machine, No. 2 dry-dressing machines and No. 3 dry-dressing machine magnetic separation at
Manage the iron remover of output particle steel；
Further include for sending the tailings after the jaw crushing crusher machine to the feed inlet of the impact crusher
No. 0 belt-conveying unit；
Further include for sending the tailings of the impact crusher output to the 1A belt conveyers of No. 1 vibrating screen
Group, the 1B belt-conveyings for the oversize of No. 1 vibrating screen to be returned to the feed inlet for being recycled to the impact crusher
Unit；
Further include for the screenings of No. 1 vibrating screen is sent to the 2A belt-conveyings unit of No. 2 vibrating screens,
For the oversize of No. 2 vibrating screens being sent to the 2B belt-conveyings unit of No. 1 dry-dressing machine, for by described No. 1
Tailings after dry-dressing machine magnetic separation is sent to the 2C belt-conveyings unit of No. 1 feed bin, for by after No. 1 dry-dressing machine magnetic separation
Tailings send to the 2D belt-conveying units of the 1B belt-conveyings unit；
Further include for the screenings of No. 2 vibrating screens is sent to the 3A belt-conveyings unit of No. 3 vibrating screens,
For the oversize of No. 3 vibrating screens being sent to the 3B belt-conveyings unit of No. 2 dry-dressing machines, for by described No. 2
Tailings after dry-dressing machine magnetic separation is sent to the 3C belt-conveyings unit of No. 2 feed bins, for by after No. 2 dry-dressing machine magnetic separation
Tailings send to the 3D belt-conveyings unit of the 1B belt-conveyings unit, for by the screenings of No. 3 vibrating screens
Send to the 3E belt-conveyings unit of No. 3 dry-dressing machines, for sending the tailings after No. 3 dry-dressing machine magnetic separation to described 3
The 3F belt-conveying units of number feed bin；
The feed end of No. 0 belt conveyer is arranged at the lower section of the discharge port of the jaw crusher, No. 0 skin
Discharge end with transport unit is arranged at the top of the feed inlet of the impact crusher；
The feed end of the 1A belt-conveyings unit is arranged at the lower section of the feed opening of the impact crusher, described
The discharge end of 1A belt-conveying units is arranged at the top of the sieve plate of No. 1 vibrating screen, the sieve plate of No. 1 vibrating screen from
It is high to Low to be obliquely installed, and the low side of the sieve plate of No. 1 vibrating screen is arranged at the feed end of the 1B belt-conveyings unit
Top, the discharge end of the 1B belt-conveyings unit is arranged at the top of the feed inlet of the impact crusher；
The feed end of the 2A belt-conveyings unit is arranged at the lower section of the sieve plate of No. 1 vibrating screen, described No. 2A
The discharge end of belt-conveying unit is arranged at the top of the sieve plate of No. 2 vibrating screens, the sieve plates of No. 2 vibrating screens from height to
Low dip is set, and the low side of the sieve plate of No. 2 vibrating screens is arranged at the upper of the feed end of the 2B belt-conveyings unit
Side, the discharge end of the 2B belt-conveyings unit are arranged at the top of the feed inlet of No. 1 dry-dressing machine, the 2C belts
The feed end of transport unit is arranged at the lower section of the discharge port of No. 1 dry-dressing machine, the discharging of the 2C belt-conveyings unit
End is arranged at the top of the feed end of the 2D belt-conveyings unit, and the belt of the 2C belt-conveyings unit is from described 1
The top of the feed inlet of number feed bin passes through, and positioned at No. 1 feed bin feed inlet top 2C belt-conveying units
The first belt plow is provided with rack, the discharge end of the 2D belt-conveyings unit is arranged at the 1B belt-conveyings
The top of the belt of unit, the top of the belt of the 2C belt-conveyings unit and is located relative to the first plough discharging
The upstream of the tailings conveying direction of device is vacantly provided with least one iron remover；
The feed end of the 3A belt-conveyings unit is arranged at the lower section of the sieve plate of No. 2 vibrating screens, described No. 3A
The discharge end of belt-conveying unit is arranged at the top of the sieve plate of No. 3 vibrating screens, the sieve plates of No. 3 vibrating screens from height to
Low dip is set, and the low side of the sieve plate of No. 3 vibrating screens is arranged at the upper of the feed end of the 3B belt-conveyings unit
Side, the discharge end of the 3B belt-conveyings unit are arranged at the top of the feed inlet of No. 2 dry-dressing machines, the 3C belts
The feed end of transport unit is arranged at the lower section of the discharge port of No. 2 dry-dressing machines, the discharging of the 3C belt-conveyings unit
End is arranged at the top of the feed end of the 3D belt-conveyings unit, and the belt of the 3C belt-conveyings unit is from described 2
The top of the feed inlet of number feed bin passes through, and positioned at No. 2 feed bins feed inlet top 3C belt-conveying units
The second belt plow is provided with rack, the discharge end of the 3D belt-conveyings unit is arranged at the 1B belt-conveyings
The top of the belt of unit, the top of the belt of the 3C belt-conveyings unit and is located relative to the second plough discharging
The upstream of the tailings conveying direction of device is vacantly provided with least one iron remover；
The feed end of the 3E belt-conveyings unit is arranged at the lower section of the sieve plate of No. 3 vibrating screens, described No. 3E
The discharge end of belt-conveying unit is arranged at the top of the feed inlet of No. 3 dry-dressing machines, the 3F belt-conveyings unit
Feed end is arranged at the lower section of the discharge port of No. 3 dry-dressing machines, and the discharge end of the 3F belt-conveyings unit is arranged at described 3
The top of the feed inlet of number feed bin.
Preferably, the impact crusher further includes metal ball feeding device；
The metal ball feeding device includes metal ball storage tank, and the bottom of the metal ball storage tank, which is provided with, to be used for described
The oscillating feeder of the feed inlet supply metal ball of impact crusher, the outlet of the oscillating feeder by metal hose with
And only the feed inlet with the impeller of the impact crusher connects.
Preferably, the metal ball is steel ball or iron ball.
Preferably, the sphere diameter of the metal ball is 30mm~45mm.
Preferably, charging drops into the double feed modes of material with annular waterfall centered on the impact crusher.
Compared with prior art, the present invention provides one kind steel-making tailings recycling recoverying and utilizing method and system, this hair
It is bright by rationally designing, can be 10mm-15mm by jaw crusher, impact crusher and vibrating screen output particle diameter
Tailings, the wherein tailings that the tailings and particle diameter that particle diameter is 4.75mm-10mm are 0-4.75mm, particle diameter are the tail of 10mm-15mm
Slag and the tailings that particle diameter is 4.75mm-10mm can be used for building the coarse aggregate in building industry in concrete mix, generation
For part stone, particle diameter is that the tailings of 0-4.75mm can be used for building the fine aggregate in building industry in concrete mix,
Instead of part sand, the tailings of three kinds of particle diameters can be also used for blending and enter clinker, to produce cement；Pass through dry-dressing machine magnetic separation
Go out slag fine powder, return to smelting iron and steel system and smelt recycling metallic iron again；By iron remover output particle steel, further such that
Tailings recycling recycling output has more the product of economic value；The present invention is recycled steel-making tailings, and output is above-mentioned
The tailings of 10mm-15mm, tailings, slag fine powder and the particle that tailings that particle diameter is 4.75mm-10mm, particle diameter are 0-4.75mm
Steel, turns waste into wealth, and not only solves the problems, such as environmental pollution, but also solve the problems, such as the wasting of resources.
Further, the present invention is by setting 2C belt conveyers, the first belt plow and 2D belt-conveyings
Machine, and by setting 3C belt conveyers, the second belt plow and 3D belt conveyers so that the system has two
Kind operating mode：The first, the first belt plow lowers with the second belt plow, and a collection of tailings is crushed from impact type
The feed inlet of machine enters, and output particle diameter is the tailings of 10mm-15mm successively, and particle diameter is the tailings and particle diameter of 4.75mm-10mm
For the tailings of 0-4.75mm；Second, only produce the tailings that particle diameter is 4.75mm-10mm or the tail that particle diameter is 0-4.75mm
Slag, when only producing the tailings that particle diameter is 4.75mm-10mm, the first belt plow is risen, the oversize of No. 2 vibrating screens is complete
Portion returns to impact crusher and crushes again, when only producing the tailings that a particle diameter is 0-4.75mm, by the first belt plow and the
Two belt plows all rise, and the oversize of No. 2 vibrating screens and No. 3 vibrating screens all returns to impact crusher and crushes again,
It is hereby achieved that the product of three specifications, product diversity is higher, and at least can only produce the product of two specifications, production
Flexibility is higher.
Brief description of the drawings
Fig. 1 is the structure diagram of steel-making tailings resource reclaiming system provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained on the premise of creative work is not made, belong to the scope of protection of the invention.
In the description of the present invention, it is to be understood that term " " center ", " axial direction ", " radial direction ", " longitudinal direction ", " transverse direction ",
" length ", " width ", " on ", " under ", "front", "rear", "left", "right", " top ", " bottom ", " interior ", " outer ", " clockwise ", " inverse
The orientation or position relationship of the instructions such as hour hands " are based on orientation shown in the drawings or position relationship, are for only for ease of description originally
Invent and simplify description, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
With reference to Fig. 1, Fig. 1 is the structural representation of steel-making tailings resource reclaiming system provided in an embodiment of the present invention
Figure.
The present invention provides one kind to make steel tailings recycling recoverying and utilizing method, comprises the following steps：
1) tailings jaw crushing crusher machine will be made steel；
2) tailings in step 1) after the jaw crushing crusher machine is subjected to broken and shaping with impact crusher
Processing；
3) tailings in step 2) after the impact crusher crushes shaping is sent into No. 1 vibrating screen and carries out 15mm grades
The screening process of other particle diameter, returns the impact crusher by the oversize foldback of No. 1 vibrating screen and is crushed again；
4) screenings of No. 1 vibrating screen in step 3) is sent to No. 2 vibrating screens to the sieve for carrying out 10mm rank particle diameters
Office is managed, and the oversize of No. 2 vibrating screens then is sent into No. 1 dry-dressing machine carries out magnetic separation output slag fine powder, then again will
Tailings after No. 1 dry-dressing machine magnetic separation handles output particle steel with iron remover, then by this step through the iron remover
Tailings after processing is sent into No. 1 feed bin storage；
5) screenings of No. 2 vibrating screens in step 4) is sent to No. 3 vibrating screens and carries out 4.75mm rank particle diameters
Screening process, then send the oversize of No. 3 vibrating screens into No. 2 dry-dressing machines and carries out magnetic separation output slag fine powder, Ran Houzai
By the tailings after No. 2 dry-dressing machine magnetic separation with iron remover handle output particle steel, then by this step through the iron removaling
Tailings after device processing is sent into No. 2 feed bin storages；
6) screenings of No. 3 vibrating screens is sent into No. 3 dry-dressing machines and carries out magnetic separation output slag fine powders, then again will be through
Tailings after No. 3 dry-dressing machine magnetic separation handles output particle steel with iron remover, then by this step through the iron remover at
Tailings after reason is sent into No. 3 feed bin storages.
In one embodiment of the invention, the tailings includes following components in percentage by weight：6.0%~8.0%
SiO2；12.5%~16.5% Al2O3；18.5%~25% Fe2O3；39%~42% CaO；5.5%~10.5%
MgO；0.3%~0.5% S；Remaining is inevitable impurity.
Present invention also offers one kind to make steel tailings resource reclaiming system, including for carrying out coarse crushing to tailings
Jaw crusher；
Further include the impact crusher for carrying out broken shaping to tailings；
Further include No. 1 vibration sieved for the tailings of the 15mm rank particle diameters to the impact crusher output
Sieve, for the 10mm rank particle diameters to the impact crusher output tailings sieved No. 2 vibrating screens, for institute
State No. 3 vibrating screens that the tailings of the 4.75mm rank particle diameters of impact crusher output is sieved；Herein, for the punching
The tailings of the 15mm rank particle diameters of impact crusher output is sieved, it is intended that the slot size on the sieve plate of No. 1 vibrating screen is expired
Foot remains tailings of the particle diameter more than or equal to 15mm in the form of oversize, by the tailings less than 15mm with the shape of screenings
Formula remains, remaining tailings to 10mm rank particle diameters sieves, and the tailings of 4.75mm rank particle diameters is sieved
Look like same as described above；
Further include for containing No. 1 feed bin that particle diameter is 10mm-15mm tailings, be 4.75mm-10mm for containing particle diameter
No. 2 feed bins of tailings, for contain particle diameter be 0-4.75mm tailings No. 3 feed bins；
Further include to crush the tailings after shaping carry out No. 1 dry-dressing machine of magnetic separation output slag fine powder, No. 2 dry-dressing machines and
No. 3 dry-dressing machines；
Further include several to the tailings after No. 1 dry-dressing machine, No. 2 dry-dressing machines and No. 3 dry-dressing machine magnetic separation at
Manage the iron remover of output particle steel；
Further include for sending the tailings after the jaw crushing crusher machine to the feed inlet of the impact crusher
No. 0 belt-conveying unit；
Further include for sending the tailings of the impact crusher output to the 1A belt conveyers of No. 1 vibrating screen
Group, the 1B belt-conveyings for the oversize of No. 1 vibrating screen to be returned to the feed inlet for being recycled to the impact crusher
Unit；
Further include for the screenings of No. 1 vibrating screen is sent to the 2A belt-conveyings unit of No. 2 vibrating screens,
For the oversize of No. 2 vibrating screens being sent to the 2B belt-conveyings unit of No. 1 dry-dressing machine, for by described No. 1
Tailings after dry-dressing machine magnetic separation is sent to the 2C belt-conveyings unit of No. 1 feed bin, for by after No. 1 dry-dressing machine magnetic separation
Tailings send to the 2D belt-conveying units of the 1B belt-conveyings unit；
Further include for the screenings of No. 2 vibrating screens is sent to the 3A belt-conveyings unit of No. 3 vibrating screens,
For the oversize of No. 3 vibrating screens being sent to the 3B belt-conveyings unit of No. 2 dry-dressing machines, for by described No. 2
Tailings after dry-dressing machine magnetic separation is sent to the 3C belt-conveyings unit of No. 2 feed bins, for by after No. 2 dry-dressing machine magnetic separation
Tailings send to the 3D belt-conveyings unit of the 1B belt-conveyings unit, for by the screenings of No. 3 vibrating screens
Send to the 3E belt-conveyings unit of No. 3 dry-dressing machines, for sending the tailings after No. 3 dry-dressing machine magnetic separation to described 3
The 3F belt-conveying units of number feed bin；
The feed end of No. 0 belt conveyer is arranged at the lower section of the discharge port of the jaw crusher, No. 0 skin
Discharge end with transport unit is arranged at the top of the feed inlet of the impact crusher；Herein it is meant that No. 0 belt conveyer
The discharge end of group is arranged at the top of the feed inlet of the impact crusher to realize discharging of the tailings from No. 0 belt conveyer
Make a clean sweep of and drop down onto the feed inlet of impact crusher this purpose, in practical application, in most cases, No. 0 belt-conveying unit
Discharge end vacantly in the top of the feed inlet of impact crusher, tailings from the discharge end free-falling of No. 0 belt conveyer to
The feed inlet of impact crusher, forms successive complete tailings transport model；Belt conveyer hereinafter is with shaking
The connection arrangement of dynamic sieve, is connected arrangement between belt conveyer and belt conveyer, and belt conveyer with
Connection arrangement between feed bin is identical with the connection arrangement of impact crusher with No. 0 above-mentioned belt conveyer；
When being related to belt conveyer, in view of the structure type that belt conveyer is special, the feed end of belt conveyer is respectively positioned on upstream
The lower section of device discharge port is to facilitate material free-falling to the belt of belt conveyer, the equal position of discharge end of belt conveyer
In the top of downstream unit feed inlet to facilitate in material free-falling to downstream unit；
The feed end of the 1A belt-conveyings unit is arranged at the lower section of the feed opening of the impact crusher, described
The discharge end of 1A belt-conveying units is arranged at the top of the sieve plate of No. 1 vibrating screen, the sieve plate of No. 1 vibrating screen from
It is high to Low to be obliquely installed, and the low side of the sieve plate of No. 1 vibrating screen is arranged at the feed end of the 1B belt-conveyings unit
Top, the discharge end of the 1B belt-conveyings unit is arranged at the top of the feed inlet of the impact crusher；
The feed end of the 2A belt-conveyings unit is arranged at the lower section of the sieve plate of No. 1 vibrating screen, described No. 2A
The discharge end of belt-conveying unit is arranged at the top of the sieve plate of No. 2 vibrating screens, the sieve plates of No. 2 vibrating screens from height to
Low dip is set, and the low side of the sieve plate of No. 2 vibrating screens is arranged at the upper of the feed end of the 2B belt-conveyings unit
Side, the discharge end of the 2B belt-conveyings unit are arranged at the top of the feed inlet of No. 1 dry-dressing machine, the 2C belts
The feed end of transport unit is arranged at the lower section of the discharge port of No. 1 dry-dressing machine, the discharging of the 2C belt-conveyings unit
End is arranged at the top of the feed end of the 2D belt-conveyings unit, and the belt of the 2C belt-conveyings unit is from described 1
The top of the feed inlet of number feed bin passes through, and positioned at No. 1 feed bin feed inlet top 2C belt-conveying units
The first belt plow is provided with rack, the discharge end of the 2D belt-conveyings unit is arranged at the 1B belt-conveyings
The top of the belt of unit, the top of the belt of the 2C belt-conveyings unit and is located relative to the first plough discharging
The upstream of the tailings conveying direction of device is vacantly provided with least one iron remover；
The feed end of the 3A belt-conveyings unit is arranged at the lower section of the sieve plate of No. 2 vibrating screens, described No. 3A
The discharge end of belt-conveying unit is arranged at the top of the sieve plate of No. 3 vibrating screens, the sieve plates of No. 3 vibrating screens from height to
Low dip is set, and the low side of the sieve plate of No. 3 vibrating screens is arranged at the upper of the feed end of the 3B belt-conveyings unit
Side, the discharge end of the 3B belt-conveyings unit are arranged at the top of the feed inlet of No. 2 dry-dressing machines, the 3C belts
The feed end of transport unit is arranged at the lower section of the discharge port of No. 2 dry-dressing machines, the discharging of the 3C belt-conveyings unit
End is arranged at the top of the feed end of the 3D belt-conveyings unit, and the belt of the 3C belt-conveyings unit is from described 2
The top of the feed inlet of number feed bin passes through, and positioned at No. 2 feed bins feed inlet top 3C belt-conveying units
The second belt plow is provided with rack, the discharge end of the 3D belt-conveyings unit is arranged at the 1B belt-conveyings
The top of the belt of unit, the top of the belt of the 3C belt-conveyings unit and is located relative to the second plough discharging
The upstream of the tailings conveying direction of device is vacantly provided with least one iron remover；
The feed end of the 3E belt-conveyings unit is arranged at the lower section of the sieve plate of No. 3 vibrating screens, described No. 3E
The discharge end of belt-conveying unit is arranged at the top of the feed inlet of No. 3 dry-dressing machines, the 3F belt-conveyings unit
Feed end is arranged at the lower section of the discharge port of No. 3 dry-dressing machines, and the discharge end of the 3F belt-conveyings unit is arranged at described 3
The top of the feed inlet of number feed bin.
The present invention is by setting 2C belt conveyers, the first belt plow and 2D belt conveyers, by the
Tailings on 2C belt conveyers can be unloaded in No. 1 feed bin by the decline of one belt plow, so as to obtain particle diameter and be
10mm-15mm tailings, can also be unloaded to No. 1B by rising the first belt plow by the tailings on 2C belt conveyers
On belt conveyer, shaping is crushed again to return to impact crusher, to be only to obtain downstream tailings product；The present invention passes through
3C belt conveyers, the second belt plow and 3D belt conveyers are set, pass through the decline of the second belt plow
Tailings on 3C belt conveyers can be unloaded in No. 2 feed bins, so that the tailings that particle diameter is 4.75mm-10mm is obtained,
The tailings on 3C belt conveyers can also be unloaded on 1B belt conveyers by rising the second belt plow, with
Return to impact crusher and crush shaping again, to be only to obtain downstream tailings product；In this way, the broken shaping that this patent provides
System has two kinds of operating modes：The first, the first belt plow lowers with the second belt plow, a collection of tailings from
The feed inlet of impact crusher enters, and output particle diameter is the tailings of 10mm-15mm successively, and particle diameter is the tail of 4.75mm-10mm
Slag and the tailings that particle diameter is 0-4.75mm；Second, the tailings or particle diameter that only production particle diameter is 4.75mm-10mm are 0-
The tailings of 4.75mm, when only producing the tailings that particle diameter is 4.75mm-10mm, the first belt plow is risen, No. 2 vibrating screens
Oversize all return impact crusher crush again, only produce a particle diameter be 0-4.75mm tailings when, by the first plough
Discharger and the second belt plow all rise, and the oversize of No. 2 vibrating screens and No. 3 vibrating screens all returns to impact crusher
Crush again.
Structure of the present invention to above-mentioned jaw crusher, impact crusher, vibrating screen, belt conveyer and feed bin
It is not particularly limited with type, above-mentioned function is met using corresponding the said equipment of the prior art.Illustrate a bit, this hair
Belt-conveying unit in bright, such as No. 0 belt-conveying unit, can only include a belt conveyer, can also include more
Bar belt conveyer, such as：Belt-conveying unit may include a main belt conveyer, some shorter with its upstream and downstream
Belt conveyer linking reversing belt transporter, it is some shorter to send the material on a belt conveyer to extremely
Shunting belt conveyer on few two downstream belt conveyers, and it is some shorter will be at least on two belt conveyers
Material be aggregated into the belt conveyer that collects on a belt conveyer, enterprise is according to the site condition at oneself scene, on demand
Design.
In one embodiment of the invention, above-mentioned impact crusher is broken including feed hopper, material separating disc, impeller, whirling motion
Broken chamber, material scraper, mesh division board, motor, base, transmission device, stent, lubricating system, bounce-back shield is provided with Turbulent chamber
Plate.When charging drops into material pair feed mode with annular waterfall centered on impact crusher, its operation principle is substantially：Raw material falls
Enter in the feed hopper of impact crusher, two stock materials are divided into by material separating disc, wherein a stock-traders' know-how material separating disc enters high-speed rotating leaf
Wheel, another stock are fallen from the surrounding of material separating disc；Into the material of impeller, accelerated rapidly in impeller, its acceleration is up to number
Ten times of acceleration of gravity, then cast away at a high speed out of impeller, first with another part by material separating disc surrounding freely falling body
The mutual impact grinding of material, then impacts on the bounce-back backplate of Turbulent chamber, occurs here anti-together after the two mixing
Bullet, changed course impact the top of Turbulent chamber obliquely, and the deflection that alters course again moves downward, and with being cast out from impeller channel
The material impacting come forms continuous material curtain；In this way, one block of material is subject to hit to repeat impact twice in Turbulent chamber
Fragmentation is hit, rubs and grinds, the material being broken falls into screening plant and carries out sieve classification.
In one embodiment of the invention, above-mentioned impact crusher further includes metal ball feeding device；The metal
Ball feeding device includes metal ball storage tank, the bottom of the metal ball storage tank be provided with for the impact crusher into
Material mouth supplies the oscillating feeder of metal ball, the outlet of the oscillating feeder by metal hose with and only with the impact type
The feed inlet connection of the impeller of crusher；This patent, sets metal ball feeding device, and the outlet of the oscillating feeder passes through
Metal hose with and only the feed inlet with the impeller of the impact crusher connects, only metal ball is added into impeller
In tailings stream stock, metal ball is spun up for one piece with tailing particles in impeller, under the effect of different size of centrifugal force, gold
Belong to and mutually collision and friction occur between ball and tailing particles, tailing particles are carried out with broken and shaping；Then metal ball and tail
One piece of solid impurity particle is gone out from the opening of impeller by projectile, and impact cutting occurs with fallen in addition one tailings on material separating disc
It is broken, not only there is the impact grinding process of stone-crash-stone herein, the impact grinding process for also having stable stone, it should be apparent that, compared to
Stone-crash-stone, stable stone have the crushing efficiency and crushing effect of higher；Crush and rub at the two of above-mentioned priority generation, significantly
Improve the crushing efficiency and crushing effect of impact crusher.
In one embodiment of the invention, the metal ball is steel ball or iron ball.
In one embodiment of the invention, the sphere diameter of the metal ball is 30mm~45mm.
In one embodiment of the invention, charging drops into the double chargings of material with annular waterfall centered on the impact crusher
Pattern.
The method and apparatus of the not detailed description of the present invention are the prior art, are repeated no more.
Specific embodiment used herein is set forth the principle of the present invention and embodiment, above example
Illustrate to be only intended to help the method and its core concept for understanding the present invention.It should be pointed out that the common skill for the art
For art personnel, without departing from the principle of the present invention, some improvement and modification can also be carried out to the present invention, these change
Also fallen into modification in the protection domain of the claims in the present invention.
Claims (7)
1. one kind steel-making tailings recycling recoverying and utilizing method, it is characterised in that comprise the following steps：
1) tailings jaw crushing crusher machine will be made steel；
2) tailings in step 1) after the jaw crushing crusher machine is subjected to broken and Shape correction with impact crusher；
3) tailings in step 2) after the impact crusher crushes shaping is sent into No. 1 vibrating screen and carries out 15mm rank grains
The screening process in footpath, returns the impact crusher by the oversize foldback of No. 1 vibrating screen and is crushed again；
4) screenings of No. 1 vibrating screen in step 3) is sent to No. 2 vibrating screens and carried out at the screening of 10mm rank particle diameters
Reason, then send the oversize of No. 2 vibrating screens into No. 1 dry-dressing machine and carries out magnetic separation output slag fine powder, then again will be through institute
State the tailings after No. 1 dry-dressing machine magnetic separation and handle output particle steel with iron remover, then will be handled in this step through the iron remover
Tailings afterwards is sent into No. 1 feed bin storage；
5) screenings of No. 2 vibrating screens in step 4) is sent to No. 3 vibrating screens to the screening for carrying out 4.75mm rank particle diameters
Processing, then send the oversizes of No. 3 vibrating screens into No. 2 dry-dressing machines and carries out magnetic separation output slag fine powders, then again will be through
Tailings after No. 2 dry-dressing machine magnetic separation handles output particle steel with iron remover, then by this step through the iron remover at
Tailings after reason is sent into No. 2 feed bin storages；
6) screenings of No. 3 vibrating screens is sent into No. 3 dry-dressing machines and carries out magnetic separation output slag fine powder, then again will be through described
Tailings after No. 3 dry-dressing machine magnetic separation handles output particle steel with iron remover, then by this step after iron remover processing
Tailings be sent into the storage of No. 3 feed bins.
2. it is according to claim 1 steel-making tailings recycling recoverying and utilizing method, it is characterised in that the tailings include with
The component of lower percentage by weight：6.0%~8.0% SiO2；12.5%~16.5% Al2O3；18.5%~25%
Fe2O3；39%~42% CaO；5.5%~10.5% MgO；0.3%~0.5% S；Remaining is inevitable impurity.
A kind of 3. system for the steel-making tailings recycling recoverying and utilizing method realized described in claim 1, it is characterised in that including
For carrying out the jaw crusher of coarse crushing to tailings；
Further include the impact crusher for carrying out broken shaping to tailings；
Further include sieved for the tailings of the 15mm rank particle diameters to the impact crusher output No. 1 vibrating screen,
No. 2 vibrating screens that tailings for the 10mm rank particle diameters to the impact crusher output is sieved, for described
No. 3 vibrating screens that the tailings of the 4.75mm rank particle diameters of impact crusher output is sieved；
Further include for containing No. 1 feed bin that particle diameter is 10mm-15mm tailings, be 4.75mm-10mm tailings for containing particle diameter
No. 2 feed bins, for contain particle diameter be 0-4.75mm tailings No. 3 feed bins；
Further include and carry out No. 1 dry-dressing machine of magnetic separation output slag fine powder, No. 2 dry-dressing machines and No. 3 to crushing the tailings after shaping
Dry-dressing machine；
Further include several and processing production is carried out to the tailings after No. 1 dry-dressing machine, No. 2 dry-dressing machines and No. 3 dry-dressing machine magnetic separation
Go out the iron remover of particle steel；
Further include for sending the tailings after the jaw crushing crusher machine to No. 0 of the feed inlet of the impact crusher
Belt-conveying unit；
Further include for sending to the 1A belt-conveyings unit of No. 1 vibrating screen, using by the tailings of the impact crusher output
In the 1B belt-conveying units that the oversize of No. 1 vibrating screen is returned to the feed inlet for being recycled to the impact crusher；
Further include for sending to the 2A belt-conveyings unit of No. 2 vibrating screens, being used for by the screenings of No. 1 vibrating screen
The oversize of No. 2 vibrating screens is sent to the 2B belt-conveyings unit of No. 1 dry-dressing machine, for by No. 1 dry separation
Tailings after machine magnetic separation sent to the 2C belt-conveyings unit of No. 1 feed bin, for by the tail after No. 1 dry-dressing machine magnetic separation
Slag is sent to the 2D belt-conveying units of the 1B belt-conveyings unit；
Further include for sending to the 3A belt-conveyings unit of No. 3 vibrating screens, being used for by the screenings of No. 2 vibrating screens
The oversize of No. 3 vibrating screens is sent to the 3B belt-conveyings unit of No. 2 dry-dressing machines, for by No. 2 dry separation
Tailings after machine magnetic separation sent to the 3C belt-conveyings unit of No. 2 feed bins, for by the tail after No. 2 dry-dressing machine magnetic separation
Slag sent to the 3D belt-conveyings unit of the 1B belt-conveyings unit, for by the screenings of No. 3 vibrating screens send to
The 3E belt-conveyings unit of No. 3 dry-dressing machines, for by the tailings after No. 3 dry-dressing machine magnetic separation send to described No. 3 material
The 3F belt-conveying units in storehouse；
The feed end of No. 0 belt conveyer is arranged at the lower section of the discharge port of the jaw crusher, No. 0 belt fortune
The discharge end of defeated unit is arranged at the top of the feed inlet of the impact crusher；
The feed end of the 1A belt-conveyings unit is arranged at the lower section of the feed opening of the impact crusher, described No. 1A
The discharge end of belt-conveying unit is arranged at the top of the sieve plate of No. 1 vibrating screen, the sieve plate of No. 1 vibrating screen from height to
Low dip is set, and the low side of the sieve plate of No. 1 vibrating screen is arranged at the upper of the feed end of the 1B belt-conveyings unit
Side, the discharge end of the 1B belt-conveyings unit are arranged at the top of the feed inlet of the impact crusher；
The feed end of the 2A belt-conveyings unit is arranged at the lower section of the sieve plate of No. 1 vibrating screen, the 2A belts
The discharge end of transport unit is arranged at the top of the sieve plate of No. 2 vibrating screens, and the sieve plate of No. 2 vibrating screens inclines from high to low
Tiltedly set, and the low side of the sieve plate of No. 2 vibrating screens is arranged at the top of the feed end of the 2B belt-conveyings unit, institute
State 2B belt-conveying units discharge end be arranged at No. 1 dry-dressing machine feed inlet top, the 2C belt-conveyings
The feed end of unit is arranged at the lower section of the discharge port of No. 1 dry-dressing machine, and the discharge end of the 2C belt-conveyings unit is set
The top of the feed end of the 2D belt-conveyings unit is placed in, the belt of the 2C belt-conveyings unit is expected from described No. 1
The top of the feed inlet in storehouse is passed through, and is located at the rack of the 2C belt-conveying units of the top of the feed inlet of No. 1 feed bin
On be provided with the first belt plow, the discharge end of the 2D belt-conveyings unit is arranged at the 1B belt-conveyings unit
Belt top, the top of the belt of the 2C belt-conveyings unit and be located relative to first belt plow
The upstream of tailings conveying direction is vacantly provided with least one iron remover；
The feed end of the 3A belt-conveyings unit is arranged at the lower section of the sieve plate of No. 2 vibrating screens, the 3A belts
The discharge end of transport unit is arranged at the top of the sieve plate of No. 3 vibrating screens, and the sieve plate of No. 3 vibrating screens inclines from high to low
Tiltedly set, and the low side of the sieve plate of No. 3 vibrating screens is arranged at the top of the feed end of the 3B belt-conveyings unit, institute
State 3B belt-conveying units discharge end be arranged at No. 2 dry-dressing machines feed inlet top, the 3C belt-conveyings
The feed end of unit is arranged at the lower section of the discharge port of No. 2 dry-dressing machines, and the discharge end of the 3C belt-conveyings unit is set
The top of the feed end of the 3D belt-conveyings unit is placed in, the belt of the 3C belt-conveyings unit is expected from described No. 2
The top of the feed inlet in storehouse is passed through, and is located at the rack of the 3C belt-conveying units of the top of the feed inlet of No. 2 feed bins
On be provided with the second belt plow, the discharge end of the 3D belt-conveyings unit is arranged at the 1B belt-conveyings unit
Belt top, the top of the belt of the 3C belt-conveyings unit and be located relative to second belt plow
The upstream of tailings conveying direction is vacantly provided with least one iron remover；
The feed end of the 3E belt-conveyings unit is arranged at the lower section of the sieve plate of No. 3 vibrating screens, the 3E belts
The discharge end of transport unit is arranged at the top of the feed inlet of No. 3 dry-dressing machines, the charging of the 3F belt-conveyings unit
End is arranged at the lower section of the discharge port of No. 3 dry-dressing machines, and the discharge end of the 3F belt-conveyings unit is arranged at No. 3 material
The top of the feed inlet in storehouse.
4. system according to claim 3, it is characterised in that the impact crusher further includes metal ball supply dress
Put；
The metal ball feeding device includes metal ball storage tank, and the bottom of the metal ball storage tank, which is provided with, to be used for the impact
The oscillating feeder of the feed inlet supply metal ball of formula crusher, the outlet of the oscillating feeder by metal hose with and only
Connected with the feed inlet of the impeller of the impact crusher.
5. system according to claim 4, it is characterised in that the metal ball is steel ball or iron ball.
6. system according to claim 4, it is characterised in that the sphere diameter of the metal ball is 30mm~45mm.
7. system according to claim 3, it is characterised in that charging falls with annular waterfall centered on the impact crusher
The double feed modes of charging.
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| CN201610539634.3A CN106179674B (en) | 2016-07-11 | 2016-07-11 | One kind steel-making tailings recycling recoverying and utilizing method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109675905A (en) * | 2018-11-28 | 2019-04-26 | 东莞理工学院 | A kind of Comprehensive Utilization of Steel Slag processing system and processing method |
| CN109513726A (en) * | 2018-11-28 | 2019-03-26 | 东莞理工学院 | A kind of steel slag recycling and reusing system and method |
| CN109663799A (en) * | 2019-01-10 | 2019-04-23 | 苏州望意阳环保科技有限公司 | A kind of Technology of Steel Slag Processing for thoroughly changing wholly-owned source |
| CN109678368B (en) * | 2019-01-24 | 2021-09-21 | 武汉理工大学 | Production method of steel slag aggregate |
| CN110938721A (en) * | 2019-12-17 | 2020-03-31 | 攀枝花钢城集团有限公司 | Method for recovering metallic iron from steel slag with extremely low metallic iron content |
| CN111450972B (en) * | 2020-04-14 | 2021-12-28 | 国宏联绿(北京)科技发展有限公司 | Ultrafine sand prepared from steel slag by drum method and method |
| CN111450973B (en) * | 2020-04-14 | 2021-12-28 | 国宏联绿(北京)科技发展有限公司 | Preparation method of active micro-powder containing roller method steel slag and directly-discharged fly ash |
| CN113058730B (en) * | 2021-03-26 | 2023-05-12 | 中冶北方（大连）工程技术有限公司 | Closed-circuit control system and method for high-pressure roller grinding before magnetite grinding |
| CN113058731B (en) * | 2021-03-26 | 2022-11-22 | 中冶北方（大连）工程技术有限公司 | Coarse crushing integrated control system and method |
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| CN101927208B (en) * | 2009-06-23 | 2013-03-13 | 鞍山钢铁集团公司 | Optimized process for processing steel slag by magnetic separation |
| CN101736099B (en) * | 2009-12-09 | 2011-07-13 | 北京首钢国际工程技术有限公司 | Secondary treatment system for steel slag and method thereof |
| CN101864501A (en) * | 2010-06-22 | 2010-10-20 | 新兴河北工程技术有限公司 | Method for recycling iron from steel slag |
| CA2773936A1 (en) * | 2011-04-12 | 2012-10-12 | Thomas A. Valerio | Method and system for processing an iron ore tailings byproduct |
| CN102531418A (en) * | 2011-12-30 | 2012-07-04 | 中信重工机械股份有限公司 | Steel slag grinding production technology and system |
| CN102586517B (en) * | 2012-04-05 | 2014-06-18 | 山西太钢不锈钢股份有限公司 | Stainless steel slag treatment method |
| CN102747174A (en) * | 2012-07-04 | 2012-10-24 | 新兴河北工程技术有限公司 | Process for extracting steel scrap and fine iron powder from slag by using dry method |
| CN104492581B (en) * | 2014-06-13 | 2016-08-24 | 江苏融达新材料股份有限公司 | The slag processing metal recovery production method that the cooling of the multiple type of cooling obtains |
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