CN209138701U - A kind of steel slag final grinding system of roll squeezer - Google Patents

A kind of steel slag final grinding system of roll squeezer Download PDF

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Publication number
CN209138701U
CN209138701U CN201821587373.3U CN201821587373U CN209138701U CN 209138701 U CN209138701 U CN 209138701U CN 201821587373 U CN201821587373 U CN 201821587373U CN 209138701 U CN209138701 U CN 209138701U
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China
Prior art keywords
discharge port
powder
conveying
feed inlet
roll squeezer
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CN201821587373.3U
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Inventor
张黎
许芬
石国平
罗占仁
华红安
侯国锋
陈中敏
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Sinoma Technology & Equipment Group Co Ltd
Tianjin Cement Industry Design and Research Institute Co Ltd
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Sinoma Technology & Equipment Group Co Ltd
Tianjin Cement Industry Design and Research Institute Co Ltd
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Abstract

The utility model discloses a kind of steel slag final grinding system of roll squeezer, belong to steel slag grinding field, including proportioner;Proportioner is connected to the first conveying device feed inlet;First conveying device discharge port is connected to mixing water injector feed inlet;Mixing water injector discharge port is connected to surge bunker feed inlet;It buffers bin discharge port external and is connected to feeding of roll squeezer mouth;Roll squeezer discharge port is connected to sound Combined powder concentrator feed inlet;Sound Combined powder concentrator is connected to hot-blast stove;Sound Combined powder concentrator air outlet is connected to dust-precipitator air inlet;Lifting device discharge port connecting pipe deironing apparatus feed inlet;Conduit deferrization device discharge port is connected to mixing water injector feed inlet;Dust-precipitator discharge port is connected to third conveying device feed inlet;Third conveying device is connected to warehouse for finished product.A kind of steel slag final grinding system of roll squeezer disclosed by the utility model reduce system unit grinding pow consumption, reduce voltage loss, remove system scum, solve material appts wall skinning, reduce labor intensity of workers.

Description

A kind of steel slag final grinding system of roll squeezer
Technical field
The utility model belongs to steel slag grinding field more particularly to a kind of steel slag final grinding system of roll squeezer.
Background technique
Steel slag mainly includes blast-furnace cinder and steel slag, is the by-product that steel plant's iron and steel smelting generates, about output of steel 30%~40% and 12%~15%.Preferably to utilize these steel and iron industry slag resources, need its grinding to specific surface Product 4000cm2/ g or more, to enhance its activity, mixing material or concrete admixture as cement.It is domestic at present common Steel slag grinding system mainly has milling system, vertical mill system, roll squeezer and ball mill Joint grinding system and roll squeezer end powder Grinding system.
Milling system is although easy to operate, and failure rate is low, but is easy grinding, and grinding energy about 80kwh/t energy consumption is high, Abrasive body consumption is big, cannot exclude the iron in raw material, therefore is seldom used.Vertical mill system is because of its grinding pow consumption about 40kWh/ The advantages that t, power consumption is low, drying capacity is strong, system is simple, is received by users, but since most of material is in grinding machine Portion recycles, and the metal abrasive grit being exposed in grinding process is difficult to remove in time completely, especially steel slag, is wrapped in clinker Metal abrasive grit could separate after rolling with steel slag, be enriched with, increase to grinding roller on mill so as to cause a large amount of metal abrasive grits With the abrasion of mill.Milling system can significantly Increasing Production and Energy Saving, but grinding compared with ball mill Joint grinding system for roll squeezer Power consumption about 60kwh/t, power consumption is still higher, is applied to the transformation and upgrade of milling system more.Steel slag final grinding system of roll squeezer Patent it is less, Chinese patent CN 102179272A discloses a kind of steel slag, slag micropowder production line roll squeezer end grinding system System is provided with drying pipe and cyclone cylinder between V-type powder concentrator and ultra-fine separator, so that grinding system resistance greatly increases, Unit grinding pow consumption is higher;There is the ability dried online additionally, due to V-type powder concentrator, the setting for drying pipe seems extra.In State patent CN 105312142A discloses a kind of metallurgy steel scum end grinding method, also V-type powder concentrator and high-efficient powder concentrator it Between be provided with cyclone cylinder.In addition, raw material and roll squeezer cycle stock are directly naturally mixed in the method for two above patent disclosure Close, since raw material is that room temperature, moisture content are high, and about 60 DEG C of roll squeezer cycle stock temperature or so, moisture content it is low, when cold and hot two When stock material mixing, fine powder meeting skinning in roll squeezer surge bunker and dust collection pipe under the action of steam generally runs one Surge bunker and dust collection pipe are cleared up in week left and right needs shutdown, are influenced continuously running for roll squeezer system, are increased the labor of worker Fatigue resistance.
In conclusion there are system unit grinding pow consumption height, voltage loss for existing steel slag final grinding system of roll squeezer Greatly, the enrichment of system scum, system are easy some column problems such as material skinning, labor intensity of workers be big.
Summary of the invention
In view of the problems of the existing technology, the utility model provides a kind of reduction system unit grinding pow consumption, reduces Voltage loss removes system scum, solves material in the skinning of appts wall, a kind of steel slag of reduction labor intensity of workers Final grinding system of roll squeezer.
The utility model is realized in this way a kind of steel slag final grinding system of roll squeezer, including by blast-furnace cinder and steel The proportioner of slag batching formation starting material;The discharge port of the proportioner starting material and is detected with conveying Except the feed inlet connection of the first conveying device of iron;The discharge port of first conveying device is combined with by starting material with sound The coarse powder that formula powder concentrator sub-elects is mixed, is sprayed water, and the feed inlet connection of the mixing water injector of mixed material is formed;It is described The discharge port of mixing water injector is connected to the feed inlet for the surge bunker for temporarily storing the mixed material;The surge bunker goes out Material mouth and the mixed material for conveying mixing water injector carry out extruding grinding, formed the roll squeezer of mixture feed powder into Material mouth connection;The discharge port of the roll squeezer with the sound combined type that mixture feed powder sub-elects coarse powder and fine powder selected into powder The feed inlet of machine is connected to;The sound Combined powder concentrator provides the hot-blast stove phase of hot wind with for the sound Combined powder concentrator Even;The discharge port of the sound Combined powder concentrator is arrived with the coarse powder circulation conveying for sub-electing the sound Combined powder concentrator The feed inlet of the lifting device of the mixing water injector is connected to, described in the air outlet of the sound Combined powder concentrator and collection The air inlet of the dust-precipitator for the fine powder that sound Combined powder concentrator sub-elects is connected to;The discharge port of the lifting device with to described Coarse powder carries out the feed inlet connection of the conduit deferrization device except iron;The discharge port of the conduit deferrization device and the mixing are sprayed water The feed inlet of device is connected to;The feed inlet of the third conveying device of the discharge port and fine powder in conveying dust-precipitator of the dust-precipitator Connection, the air outlet of the dust-precipitator are connected to the air inlet of blower;Described in the discharge port of the third conveying device and storage The warehouse for finished product connection of the fine powder of third conveying device conveying;The blower with wind, the air outlet and cigarette of the blower are provided for system Chimney connection, the blower and the sound Combined powder concentrator, the dust-precipitator form circulated air access.
In the utility model, mixing water injector includes mixing device and water injector, mixing device by starting material with The coarse powder mixing that sound Combined powder concentrator sub-elects has temperature and moisture into the mixed material of roll squeezer uniform Property, solve sheeting problems of the mixed material in surge bunker and dust-precipitator pipeline, it is no longer necessary to artificial periodic cleaning;Water spray Device sprays moisture to the material in mixing device, the operating status of roll squeezer is improved, convenient for the even running of roll squeezer.Roller Mixture feed powder is directly transported and is dried and sorted into sound Combined powder concentrator by press, and system structure simplifies, and is reduced Voltage loss.Sound Combined powder concentrator includes static roughing part and dynamic chosen portion, carries out just fraction to mixed material Choosing and second level sorting sort twice, it is hereby achieved that the higher product of fineness, meanwhile, sound Combined powder concentrator shortens quiet The length of connecting pipe between state powder concentrator and dynamic powder concentrator.The system carries out detection except iron to starting material, is additionally provided with pipe Road deironing apparatus carries out pipeline to coarse powder except iron, since the metal abrasive grit being wrapped in clinker just divides with steel slag after roll-in again From, thus timely and effective can go iron impurity at this time.
Further, during static roughing, hot-blast stove is the mixture of static roughing part in sound Combined powder concentrator Feed powder provides heat, makes the online baking mixture material of sound Combined powder concentrator;In dynamic refining process, hot-blast stove generates hot wind By the first fine powder be sent into dynamic chosen portion, further dry, to the first fine powder carry out second level sorting, sub-elect the second fine powder and Second coarse powder.
The utility model can also be achieved, steel slag roll squeezer end grinding system described in above-mentioned any one technical solution System, the starting material are the mixture or desulfurization lime stone of slag or steel slag or slag and steel slag.
Starting material is the steel slag roll squeezer of the mixture or desulfurization lime stone of slag or steel slag or slag and steel slag Final grinding system, the beneficial effect with above-mentioned steel slag final grinding system of roll squeezer.
In conclusion mixing water injector makes temperature and moisture into the mixed material of roll squeezer in the utility model With uniformity, solves sheeting problems of the mixed material in surge bunker and dust-precipitator pipeline, improve the fortune of roll squeezer Row state.Sound Combined powder concentrator carries out primary sorting to mixed material and second level sorting sorts twice, it is hereby achieved that The higher product of fineness, meanwhile, sound Combined powder concentrator shortens connecting pipe between static powder separating machine and dynamic powder concentrator Length.The system simplifies system process, reduces voltage loss, thereby reduces unit grinding pow consumption.This is practical Novel system operation power consumption is low, and energy conservation and consumption reduction effects are significant, and grinding system power consumption is only 35 ± 1kWh/t, and system is convenient except iron, The roll surface service life is long, and when grinding slag, built-up welding roll surface is up to 3000-4000h.
Detailed description of the invention
Fig. 1 is system structure diagram provided by the embodiment of the utility model.
In figure: 1, proportioner;2, the first conveying device;3, mixing water injector;4, roll squeezer;5, sound combined type selects Powder machine;6, lifting device;7, hot-blast stove;8, dust-precipitator;9, third conveying device;10, warehouse for finished product;11, blower;12, pipeline removes Iron device;13, surge bunker;14, chimney.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical It is novel, it is not used to limit the utility model.
The utility model provides one kind and reduces system unit grinding pow consumption, reduce voltage loss, remove system Scum, solve material appts wall skinning, reduce the steel slag final grinding system of roll squeezer of labor intensity of workers, be Further explanation the utility model, is described in detail as follows in conjunction with attached drawing:
As shown in Figure 1, a kind of steel slag final grinding system of roll squeezer, including blast-furnace cinder and steel slag batching are formed The proportioner 1 of starting material, the discharge port of proportioner 1 are connected with the feed inlet of the first conveying device 2;Convey starting material And the first conveying device 2 that detection removes iron is carried out, the discharge port of the first conveying device 2 and the feed inlet of mixing water injector 3 connect Leading to, iron is removed by carrying out detection for the first time to starting material when the first conveying device 2, by the iron in starting material when convenient for sorting Impurity sub-elects, and conveying device usually carries out detection except iron simultaneously in this field, and detection iron removal technology scheme belongs to the prior art, Wherein it is preferred to which the first conveying device 2 may be configured as belt conveyor;Starting material and sound Combined powder concentrator 5 are sorted The first coarse powder and the second coarse powder out is mixed, is sprayed water, and the mixing water injector 3 of mixed material, mixing water injector 3 are formed Discharge port be connected to the feed inlet of surge bunker 13;Temporarily store the surge bunker of the mixed material, the discharge port of surge bunker 13 It is connected to the feed inlet of roll squeezer 4;The mixed material that mixing water injector 3 is conveyed carries out extruding grinding, forms mixed material The discharge port of the roll squeezer 4 of powder, roll squeezer 4 is connected to the feed inlet of the static roughing of sound Combined powder concentrator 5 part;It will mixing Material powder carries out static roughing, sub-elects the first coarse powder and the first fine powder, and it is selected that the first fine powder carried out dynamic, sub-elects the The sound Combined powder concentrator 5 of two coarse powder and the second fine powder, sound Combined powder concentrator 5 include static roughing part and dynamic essence Part is selected, the discharge port of static roughing part is connected to the feed inlet of lifting device, the discharge port of dynamic chosen portion and promotion The feed inlet of device is connected to, and the second fine powder that the air outlet of dynamic chosen portion is sub-elected with collection dynamic chosen portion gathers dust The air inlet of device 8 is connected to;The first coarse powder and the second coarse powder circulation conveying that sound Combined powder concentrator 5 is sub-elected are sprayed to mixing The discharge port of the lifting device 6 of water installations 3, lifting device 6 is connected to the feed inlet of conduit deferrization device 12;To the coarse powder into Row removes the conduit deferrization device 12 of iron, the feed inlet of the discharge port of the conduit deferrization device 12 and the mixing water injector 3 Connection;There is provided the hot-blast stove 7 of hot wind for static roughing part and dynamic chosen portion, hot-blast stove 7 and static roughing part into Air port is connected;The second fine powder is collected, and the second fine powder is delivered to the dust-precipitator 8 of warehouse for finished product 10 by third conveying device 9, is received The discharge port of dirt device 8 is connected to the feed inlet of third conveying device 9, and the air outlet of dust-precipitator 8 is connected to the air inlet of blower 11; The second fine powder in dust-precipitator 8 is delivered to the third conveying device 9 of warehouse for finished product 10, the discharge port of third conveying device 9 at Product library 10 is connected to, wherein preferably, third conveying device 9 may be configured as air flume;Store what third conveying device 9 conveyed The warehouse for finished product 10 of second fine powder;There is provided the blower 11 with wind for system, the air outlet of blower 11 is connected to chimney 14, blower 11 with Sound Combined powder concentrator 5, dust-precipitator 8 form circulated air access.
In the utility model, mixing water injector 3 include mixing device and water injector, mixing device by starting material with The coarse powder mixing that sound Combined powder concentrator 5 sub-elects has temperature and moisture into the mixed material of roll squeezer 4 uniform Property, solve sheeting problems of the mixed material in surge bunker and dust-precipitator pipeline, it is no longer necessary to artificial periodic cleaning;Water spray Device sprays moisture to the material in mixing device, the operating status of roll squeezer 4 is improved, convenient for the even running of roll squeezer 4.
Mixture feed powder is directly transported and is dried and sorted into sound Combined powder concentrator 5 by roll squeezer 4, is simplified and is System structure, reduces voltage loss, while reducing unit grinding pow consumption.
Sound Combined powder concentrator 5 includes static roughing part and dynamic chosen portion, carries out just fraction to mixed material Choosing and second level sorting sort twice, it is hereby achieved that the higher product of fineness, meanwhile, sound Combined powder concentrator 5 shortens The length of connecting pipe between static powder separating machine and dynamic powder concentrator, reduces voltage loss 1000-1500Pa;Reduce workshop Highly, civil engineering capital investment is saved.
Further, during static roughing, hot-blast stove 7 is the mixing of static roughing part in sound Combined powder concentrator 5 Material powder provides heat, makes the online baking mixture material of sound Combined powder concentrator 5;In dynamic refining process, hot-blast stove 7 is generated First fine powder is sent into dynamic chosen portion by hot wind, is further dried, and carries out second level sorting to the first fine powder, it is thin to sub-elect second Powder and the second coarse powder.
In addition to carrying out detection except iron to starting material, this system is additionally provided with conduit deferrization device 12 and carries out pipe again to coarse powder Road removes iron, since the metal abrasive grit being wrapped in clinker is just separated with steel slag after roll-in, thus timely and effective can remove at this time Iron tramp, and arrange iron conveniently, it avoids iron tramp from being enriched in system, reduces the abrasion to system.
The utility model can also be achieved, above-mentioned 4 final grinding system of any one technical solution steel slag roll squeezer, Starting material is the mixture or desulfurization lime stone of slag or steel slag or slag and steel slag.Starting material be slag or steel slag or 4 final grinding system of steel slag roll squeezer of the mixture or desulfurization lime stone of slag and steel slag has above-mentioned steel slag roll-in The beneficial effect of 4 final grinding system of machine.
Embodiment 1: starting material be 100% slag, moisture 15% hereinafter, granularity 10mm hereinafter, via the steel slag roller After the processing of press final grinding system, powder is selected by the drying and primary of the static part of sound Combined powder concentrator 5, is greater than 2mm Coarse powder enter the second conveying equipment 6 and squeezed again back to roll squeezer 4, the fine powder less than 2mm then brings sound group into air-flow The dynamic part of box-like powder concentrator 5 also returns to roll squeezer 4 by the secondary fine powder for selecting powder thicker and squeezes again, and qualified is thin Powder, which is collected as finished product by dust-precipitator 8, enters warehouse for finished product 10 by third conveying device 9, and final finished is than table > 4200cm2/ g, 45 μ M is tailed over less than 1%, and grinding system power consumption is 34.60kWh/t.
Embodiment 2: starting material be 100% steel slag, moisture 8% hereinafter, granularity 30mm hereinafter, via the steel slag roll-in After the processing of machine final grinding system, final finished is than table > 4200cm2/ g, 45 μm tail over less than 1%, and grinding system power consumption is 36.89kWh/t。
Embodiment 3: starting material is 70-90% slag and 10-30% steel slag, and slag moisture 15% is hereinafter, granularity 10mm Hereinafter, steel slag moisture 8% hereinafter, granularity 30mm hereinafter, via the steel slag final grinding system of roll squeezer handle after, final finished Than table > 4300cm2/ g, 45 μm tail over less than 1%, and grinding system power consumption is between 35-37kWh/t.
Embodiment 4: starting material be 100% desulfurization lime stone, moisture 5% hereinafter, granularity 20mm hereinafter, via the steel After the processing of scum final grinding system of roll squeezer, grinding system power consumption is 22kWh/t or so, and 45 μm of final finished tail over less than 8%.
Working principle part: the utility model, as end milling equipment, squeezes powder using closed material bed using roll squeezer Principle is ground, mixing water injector 3 includes mixing device and water injector, and starting material and sound combined type are selected powder by mixing device The first coarse powder and the mixing of the second coarse powder that machine 5 sub-elects;Water injector sprays moisture to the material in mixing device;Roll squeezer 4 Mixture feed powder is directly transported and is dried and is sorted into sound Combined powder concentrator 5;Sound Combined powder concentrator 5 includes Static roughing part and dynamic chosen portion carry out primary sorting to mixed material and second level sorting sort twice;Static roughing In the process, hot-blast stove 7 provides heat for the mixture feed powder of static roughing part in sound Combined powder concentrator 5, makes sound group The online baking mixture material of box-like powder concentrator 5;In dynamic refining process, hot-blast stove 7 generates hot wind and the first fine powder is sent into dynamic Chosen portion.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (2)

1. a kind of steel slag final grinding system of roll squeezer, which is characterized in that including forming blast-furnace cinder and steel slag batching The proportioner (1) of starting material;The discharge port of the proportioner (1) and conveying starting material simultaneously carry out detection except the of iron The feed inlet of one conveying device (2) is connected to;The discharge port of first conveying device (2) with by starting material and sound combined type The coarse powder that powder concentrator (5) sub-elects is mixed, is sprayed water, and the feed inlet connection of the mixing water injector (3) of mixed material is formed; The discharge port of the mixing water injector (3) is connected to the feed inlet for the surge bunker (13) for temporarily storing the mixed material;Institute The discharge port for stating surge bunker (13) carries out extruding grinding with by the mixed material of mixing water injector (3) conveying, is formed mixed Close the feed inlet connection of the roll squeezer (4) of material powder;The discharge port of the roll squeezer (4) with mixture feed powder sub-elected into coarse powder It is connected to the feed inlet of the sound Combined powder concentrator (5) of fine powder;The sound Combined powder concentrator (5) is moved with to be described The hot-blast stove (7) that quiet Combined powder concentrator (5) provides hot wind is connected;The discharge port of the sound Combined powder concentrator (5) and general Lifting device (6) of the coarse powder circulation conveying that the sound Combined powder concentrator (5) sub-elects to the mixing water injector (3) Feed inlet connection, the air outlet of the sound Combined powder concentrator (5) and collect the sound Combined powder concentrator (5) and sort The air inlet of the dust-precipitator (8) of fine powder out is connected to;The discharge port of the lifting device (6) is carried out with to the coarse powder except iron The feed inlet of conduit deferrization device (12) is connected to;The discharge port and the mixing water injector of the conduit deferrization device (12) (3) feed inlet connection;The third conveying device (9) of fine powder in the discharge port of the dust-precipitator (8) and conveying dust-precipitator (8) Feed inlet connection, the air outlet of the dust-precipitator (8) are connected to the air inlet of blower (11);The third conveying device (9) Discharge port is connected to the warehouse for finished product (10) for the fine powder for storing third conveying device (9) conveying;It provides for system with wind-force The air outlet of blower (11), the blower (11) is connected to chimney (14), and the blower (11) and the sound combined type select powder Machine (5), the dust-precipitator (8) form circulated air access.
2. steel slag final grinding system of roll squeezer according to claim 1, which is characterized in that the starting material be slag or The mixture or desulfurization lime stone of steel slag or slag and steel slag.
CN201821587373.3U 2018-09-27 2018-09-27 A kind of steel slag final grinding system of roll squeezer Active CN209138701U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110606674A (en) * 2019-10-10 2019-12-24 郑州沃特节能科技股份有限公司 Final grinding method of slag and steel slag composite micro powder roller press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110606674A (en) * 2019-10-10 2019-12-24 郑州沃特节能科技股份有限公司 Final grinding method of slag and steel slag composite micro powder roller press

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