CN111468386A - Active micro powder prepared from steel slag obtained by air quenching and directly-discharged fly ash and preparation method thereof - Google Patents

Active micro powder prepared from steel slag obtained by air quenching and directly-discharged fly ash and preparation method thereof Download PDF

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Publication number
CN111468386A
CN111468386A CN202010291679.XA CN202010291679A CN111468386A CN 111468386 A CN111468386 A CN 111468386A CN 202010291679 A CN202010291679 A CN 202010291679A CN 111468386 A CN111468386 A CN 111468386A
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China
Prior art keywords
clamping
rod
vibrating screen
clamping ring
vibrating
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CN202010291679.XA
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Chinese (zh)
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CN111468386B (en
Inventor
张岩
刘波
梁超
董伟
付吉国
张斌
邓少奎
赵鹏
林红
苗燕
张子琛
李通
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Guohong Lianlv Beijing Technology Development Co ltd
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Guohong Lianlv Beijing Technology Development Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/141—Slags
    • C04B18/142—Steelmaking slags, converter slags
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The active micro powder is prepared from 60-70% of steel slag, 20-30% of fly ash, 16-20% of lime and 0.1-0.3% of polycarboxylate water reducer powder by mass percent, and is added into a gravity-free mixing stirrer and stirred to fully and uniformly mix the materials. The amorphous mineral phase on the surface of the steel slag is obviously increased through a wind quenching method, the potential activity is improved, the activity is higher through a grinding aid, reinforcing fibers, polycarboxylate superplasticizer powder and silicon oxide, the compatibility with cement is good, the coal ash delays the hydration speed, the temperature rise of the concrete caused by hydration heat is reduced, the concrete is prevented from generating temperature cracks, the binding force of the concrete is obviously improved, and the durability is improved. Because the problem that the grinding effect is influenced by the different sizes of the steel slag, an auxiliary device for screening is specially made for crushing the steel slag.

Description

Active micro powder prepared from steel slag obtained by air quenching and directly-discharged fly ash and preparation method thereof
Technical Field
The invention relates to the technical field of materials of civil engineering, in particular to active micro powder prepared from steel slag and directly-discharged fly ash by a wind quenching method and a method thereof.
Background
As is well known, steel slag is a byproduct in the steel-making process, and consists of various oxides formed by oxidizing impurities in pig iron such as silicon, manganese, phosphorus, sulfur and the like in the smelting process and salts generated by the reaction of the oxides and a solvent, wherein the steel slag is clinker and is a re-melting phase, the melting temperature is low, when re-melting is carried out, a liquid phase is formed early, the fluidity is good, the steel slag is taken as a secondary resource for comprehensive utilization, and one of the two main ways is taken as a smelting solvent for recycling in a factory, so that the steel slag not only can replace limestone, but also can recover a large amount of metallic iron and other useful elements; the other is used as a raw material for manufacturing road building materials, building materials or agricultural fertilizers.
Fly ash is fine ash captured from flue gas generated after coal combustion, the fly ash is main solid waste discharged by a coal-fired power plant, the fly ash can be recycled, and the recycling aspect of the fly ash at present is as follows: the fly ash cement, fly ash bricks, fly ash silicate building blocks, fly ash aerated concrete and other building materials are produced, and the fly ash silicate building blocks can also be used as agricultural fertilizers and soil conditioners, and can be used as industrial raw materials and environmental materials.
The slag micro powder is blast furnace slag discharged from a blast furnace during pig iron smelting, also called granulated blast furnace slag, and is mainly used for being blended in cement and added in commercial concrete to improve the performance of the cement and reduce the production cost and energy consumption.
Although steel slag is waste material at present, the steel slag is common as a material of occasions needing strength due to good structural strength, but most of the steel slag utilized at present is primarily crushed, the granularity of the steel slag is very uneven, particles with various sizes ranging from 80 meshes to 3000 meshes exist, and due to the extremely high hardness of the steel slag, if the steel slag is directly ground with wide distribution size, the actual effect is very poor, and the steel slag is difficult to be effectively crushed.
Disclosure of Invention
The invention aims to solve the technical problems that firstly, a novel active micro-powder material is provided, for example, the active micro-powder material is used for building and the like, secondly, the defect of the prior art that the grinding treatment of steel slag is relatively extensive is overcome, the screening is carried out by grading on the grinding treatment of the steel slag, and on the basis of the screening, coarse grains are firstly ground and then fine grains are ground, so that the grinding of particles with similar sizes during each grinding is ensured, the grinding efficiency is improved, the effect is improved, and the active micro-powder material prepared by compounding the steel slag obtained by the air quenching method and the directly-discharged fly ash as main raw materials and the method thereof are mainly provided.
In order to achieve the purpose, the invention provides the following technical scheme: in order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a slag crushing auxiliary device which characterized in that: the ultrasonic vibration grinding machine comprises a vibrating screen group, a supporting frame, a first vibrator, a side frame, an ultrasonic clamping frame, a funnel part and a grinding machine hopper. The vibrating screen group is provided with a top cover, a first vibrating screen, a second vibrating screen, a third vibrating screen, a fourth vibrating screen and a bottom groove from top to bottom in sequence.
The first vibrating screen, the second vibrating screen, the third vibrating screen and the fourth vibrating screen are respectively fixed with a first screen with 120-.
The outer side of the top cover is provided with a downward flange which is tightly buckled on the upper part of the first vibrating screen. The upper surface of the top cover is provided with an upper concave part with a straight-line-shaped concave. The first vibrating screen, the second vibrating screen, the third vibrating screen, the fourth vibrating screen and the bottom groove are in the shape of hollow cylinders with the same size, the lower portion of the bottom groove is provided with a closed bottom, and the lower surface of the bottom is provided with a concave linear lower concave portion.
The support frame is provided with an upper frame, a fixing bolt group, a lower pipe and a support frame seat from top to bottom in sequence. The upper frame is formed by integrally forming the top of a straight cuboid frame and cylindrical frame columns. The top of the frame is pushed into the lower concave part for fixing.
The first vibrator comprises a first generator, and a first energy converter, a first amplitude transformer, a first vibrating rod and a vibrating top bolt which are sequentially connected from top to bottom. The vibration top bolt is a rectangular body in a shape of Chinese character 'yi', and the vibration top bolt is pressed into the upper concave part for fixing. The first generator supplies an ultrasonic signal to the first transducer.
The side frame comprises a side frame base, a side rod, a side frame footstock, a first clamping group, a second clamping group 45, a third clamping group, a fourth clamping group and a fifth clamping group, wherein the side rod is vertical, the side frame base is fastened on the ground, the side frame footstock is fastened on a roof, and the first clamping group, the second clamping group, the third clamping group, the fourth clamping group and the fifth clamping group are all in a hollow phi shape and respectively and horizontally clamp and fix the first vibrating screen, the second vibrating screen, the third vibrating screen, the fourth vibrating screen and the bottom groove.
The ultrasonic clamping frame comprises a second generator, a second transducer, a second amplitude transformer, a vibration clamp, an upper clamping pipe, a lower clamping pipe, a transverse screw, a sleeve part and a clamping seat, the second generator supplies ultrasonic signals to the second transducer, the second amplitude transformer and the vibration clamp are sequentially connected from right to left, the vibration clamp is overlooks to be Y-shaped and is provided with a large semicircular ring part attached to the outer side of the vibrating screen, the large semicircular ring part is 13/24-7/12 circular rings, the center of the lower clamping pipe bottom screwed in clamping seat is fixed, the top of the lower clamping pipe bottom screwed in clamping seat is sleeved with the sleeve part, the right side of the sleeve part is provided with the transverse screw screwed in from a screw hole, and the transverse screw is screwed in the notch part on the right side of the top of the lower clamping pipe to fix the upper clamping pipe extending into the.
The funnel part comprises a funnel, a clamping ring, a left screw rod group, a right screw rod group and a controller, the funnel consists of an upper cylindrical part, a conical part and a hopper opening at the lower part, the upper cylindrical part is clamped by the stainless steel clamping ring, the left screw rod group and the right screw rod group respectively support the left side and the right side of the clamping ring, and motors of the left screw rod group and the right screw rod group rotate simultaneously to enable the funnel to ascend or descend. The grinder hopper is positioned under the hopper opening.
Preferably, the first vibrating screen is formed by splicing an upper part and a lower part of an upper hollow cylinder and a lower hollow cylinder, a first screen mesh is clamped and fixed between the upper part and the lower part, and the upper part and the lower part are fixed by N long bolts which are uniformly distributed in the circumferential direction. The second vibrating screen is formed by splicing an upper hollow cylindrical upper part and a lower hollow cylindrical lower part, a second screen is clamped and fixed between the upper part and the lower part, and the upper part and the lower part are fixed by N long bolts which are uniformly distributed in the circumferential direction. The third vibrating screen is formed by splicing three upper parts and three lower parts of an upper hollow cylinder and a lower hollow cylinder, a third screen is clamped and fixed between the three upper parts and the three lower parts, and the three upper parts and the three lower parts are fixed by N long bolts which are uniformly distributed in the circumferential direction. The fourth vibrating screen is formed by splicing four upper parts and four lower parts of an upper hollow cylinder and a lower hollow cylinder, a fourth screen is clamped and fixed between the four upper parts and the four lower parts, and the four upper parts and the four lower parts are fixed by N long bolts which are uniformly distributed in the circumferential direction.
The fixing bolt group comprises a fixing bolt, a fixing nut and a pair of gaskets, the lower end of the upper frame column extends into the lower pipe, the fixing bolt penetrates through a pair of preformed holes in the upper frame column and the lower pipe, and the fixing bolt is screwed and fixed under the condition that the gaskets are respectively padded on the head of the fixing bolt and the inner side of the nut.
The first clamping group comprises a first clamping ring, a first flange part, a first clamping rod, a first cross bolt and a first holding part, the first clamping ring in the shape of a circular ring and the first clamping rod in the shape of a long and thin cylinder are integrally formed, the first clamping ring is horizontal, the first clamping rod stretches out rightwards from the right side of the first clamping ring, and the first flange part is a pair of flanges which are positioned on the first clamping ring and are positioned on the opposite side of the first clamping rod, and a gap which is not connected is formed between the flanges. The first clamping rod penetrates into the first large hole in the side rod and is fixed by a first transverse bolt which simultaneously penetrates through the first clamping rod and the front and back through holes in the side rod, and the first holding part is an engineering plastic part tightly sleeved on the first clamping rod and is externally provided with an irregular holding groove.
The second clamping group comprises a second clamping ring, a second flange part, a second clamping rod, a second transverse bolt and a second holding part, the second clamping ring in the shape of a circular ring and the second clamping rod in the shape of a long and thin cylinder are integrally formed, the second clamping ring is horizontal, the second clamping rod extends out of the right side of the second clamping ring rightwards, and the second flange part is a pair of flanges which are positioned on the second clamping ring and located on the opposite side of the second clamping rod, and a gap which is not connected is formed between the flanges. The second clamping rod penetrates into the second large hole in the side rod and is fixed by a second transverse bolt which simultaneously penetrates through the second clamping rod and the front and back through holes in the side rod, and the second holding part is an engineering plastic part tightly sleeved on the second clamping rod and is externally provided with an irregular holding groove.
The third clamping group comprises a third clamping ring, a third flange part, a third clamping rod, a third transverse bolt and a third holding part, the third clamping ring and the third clamping rod are integrally formed, the third clamping ring is horizontal, the third clamping rod extends out of the right side of the third clamping ring rightwards, and the third flange part is a pair of flanges which are positioned on the third clamping ring and on the opposite side of the third clamping rod, and the middle of the pair of flanges is provided with a gap which is not connected. The third clamping rod penetrates into a third large hole in the side rod and is fixed by a third transverse bolt which simultaneously penetrates through the third clamping rod and a front through hole and a rear through hole in the side rod, and the third holding part is an engineering plastic part tightly sleeved on the third clamping rod and is externally provided with an irregular holding groove.
The fourth clamping group comprises a fourth clamping ring, a fourth flange part, a fourth clamping rod, a fourth cross bolt and a fourth holding part, the fourth clamping ring and the elongated cylindrical fourth clamping rod are integrally formed, the fourth clamping ring is horizontal, the fourth clamping rod extends out of the right side of the fourth clamping ring rightwards, and the fourth flange part is a pair of flanges which are positioned on the fourth clamping ring and on the opposite side of the fourth clamping rod, and the middle of the pair of flanges is provided with a gap which is not connected. The fourth clamping rod penetrates into a fourth large hole in the side rod and is fixed by a fourth cross bolt which simultaneously penetrates through the fourth clamping rod and a front through hole and a rear through hole in the side rod, and the fourth holding part is an engineering plastic part tightly sleeved on the fourth clamping rod and is externally provided with an irregular holding groove.
The fifth clamping group comprises a fifth clamping ring, a fifth flange part, a fifth clamping rod, a fifth cross bolt and a fifth holding part, the fifth clamping ring and the fifth clamping rod are integrally formed, the fifth clamping ring is horizontal, the fifth clamping rod extends out of the right side of the fifth clamping ring rightwards, the fifth flange part is a pair of flanges which are positioned on the fifth clamping ring and on the opposite side of the fifth clamping rod, and a gap which is not connected is formed between the flanges. The fifth clamping rod penetrates into a fifth large hole in the side rod and is fixed by a fifth transverse bolt which simultaneously penetrates through the fifth clamping rod and a front through hole and a rear through hole in the side rod, and the fifth holding part is an engineering plastic part tightly sleeved on the fifth clamping rod and is externally provided with an irregular holding groove.
The left lead screw group has the left montant of fixing on ground, from the top down is fixed with upper left card portion on the montant of a left side, card portion in the left side, left side lower card portion, left lead screw upper end is fixed in upper left card portion, left motor is installed in left lower card portion and its motor shaft and is installed in left side in card portion and can free rotation's left coupling coaxial coupling, be connected with left lead screw between the lower part of left lead screw upper end and the left coupling lower extreme, inlay centre gripping ring left edge and its screw and left lead screw cooperation with left lead screw complex left lead screw.
The right lead screw group has the right montant of fixing on ground, from the top down is fixed with card portion on the right side, card portion in the right side, card portion under the right side on the right montant, right lead screw upper end is fixed in card portion on the right side, right motor installation in card portion under the right side and its motor shaft with install in card portion in the right side and can free rotation's right shaft coupling coaxial coupling, be connected with right lead screw between the lower part of right lead screw upper end and the right shaft coupling lower extreme, inlay centre gripping ring right edge and its screw and right lead screw cooperation with right lead screw complex right lead screw with right lead screw complex right nut.
Said N is at least 4. The screen mesh of all the vibrating screens is made of stainless steel, and the parts except the screen mesh are made of opaque polytetrafluoroethylene.
The support frame is made of stainless steel, the vibrating rods and the vibrating top bolts are made of stainless steel, the side frame bases and the side frame top bases are made of engineering plastics, the side rods are made of stainless steel, the holding parts in all the clamping groups are made of engineering plastics, and other parts in the clamping groups are made of stainless steel. The sleeve part is made of engineering plastics, and the vibration clamp, the upper clamping pipe, the lower clamping pipe, the transverse screw and the clamping seat are all made of stainless steel. For tight bonding, the upper and lower contact surfaces of the screen may be deliberately roughened or textured.
A preparation method of active micro powder containing air quenching steel slag and fly ash is carried out by utilizing the device, and specifically comprises the following steps: (1) weighing raw materials: respectively weighing 60-70% of steel slag, 20-30% of fly ash, 0.7-2% of steel slag grinding aid, 16-20% of lime, 0.1-0.3% of polycarboxylate superplasticizer powder, 0.2-0.6% of activator, 0.1-0.3% of silicon oxide and 0.1-0.3% of reinforcing fiber according to mass percentage. (2) Grading and screening: the steel slag crushing auxiliary device is used, the steel slag grinding aid and the fly ash which are weighed in the step 1 are poured on the first vibrating screen, the top cover is buckled, the first vibrating screen, the second vibrating screen, the third vibrating screen, the fourth vibrating screen and the bottom groove are aligned in the vertical direction, the vibrating screen group is clamped with the vibrating top bolt and the upper frame up and down, the first generator is started, and the steel slag crushing auxiliary device vibrates for at least 1 hour in a low-frequency and high-frequency repeated alternating mode. Respectively forming a crude product, a secondary crude product, a tertiary crude product, a quaternary crude product and a fine product in the first vibrating screen, the second vibrating screen, the third vibrating screen, the fourth vibrating screen and the bottom groove. (3) Multiple grinding steps: move aside vibration top bar and top cap, reduce the position of putting on the shelf, pull out first horizontal bar and first portion of gripping, shift out first shale shaker and first grip ring and insert fixedly from the right side in same hole, sheathe in first portion of gripping, controller control funnel risees to first shale shaker under, and make and grind the machine hopper and be located under the fill mouth, grip first portion of gripping and rotate 180 and make most material fall down, it is fixed to insert first horizontal bar, controller control funnel risees to upper portion and first shale shaker limit contact, adjust the height of vibration clamp to being less than first grip ring slightly and the first shale shaker of lateral shifting centre gripping. The second generator was started to vibrate at 15000-. Pull out the horizontal bolt of second and the portion of gripping of second, shift out the second shale shaker and insert fixedly from the right side in same hole with the second grip ring, sheathe the second portion of gripping, controller control funnel risees to the second shale shaker under, and make and grind the machine hopper and be located under the fill mouth, grip the second portion of gripping and rotate 180 and make most material fall down, it is fixed to insert the horizontal bolt of second, controller control funnel risees to upper portion and second shale shaker limit contact, adjust the height of vibration clamp to being less than the second grip ring and lateral shifting centre gripping second shale shaker a little. Starting the second generator to vibrate at 15000-. Pulling out third horizontal bolt and third portion of gripping, shift out the third shale shaker and insert fixedly from the right side in same hole with the third grip ring, sheathe in the third portion of gripping, controller control funnel risees to the third shale shaker under, and make and grind the machine hopper and be located the fill mouth under, grip the third portion of gripping and rotate 180 and make most material fall down, it is fixed to insert the third horizontal bolt, controller control funnel risees to upper portion and third shale shaker limit contact, adjust the height of vibration clamp to being less than third grip ring and lateral shifting centre gripping third shale shaker a little. Starting the second generator to vibrate at 15000-. Pull out fourth horizontal bolt and fourth portion of gripping, shift out the fourth shale shaker and insert fixedly from the right side in same hole with the fourth centre gripping circle, sheathe the fourth portion of gripping in, controller control funnel risees to the fourth shale shaker under, and make and grind the machine hopper and be located under the fill mouth, grip the fourth portion of gripping and rotate 180 and make most material fall down, it is fixed to insert the fourth horizontal bolt, controller control funnel risees to upper portion and fourth shale shaker limit contact, adjust the height of vibration clamp to being less than fourth centre gripping circle and lateral shifting centre gripping fourth shale shaker a little. Starting the second generator to vibrate at 15000-.
(4) Ultra-fine grinding: and pouring the product obtained in the step three and the fine product in the bottom tank into a gravity-free mixing stirrer, and stirring for 10 min. And adding the lime weighed in the step 1, 0.1-0.3% of polycarboxylate superplasticizer powder, 0.2-0.6% of excitant, 0.1-0.3% of silicon oxide and 0.1-0.3% of reinforcing fiber, and continuously stirring in a gravity-free mixing stirrer for 30-60 minutes to obtain the active micro powder composite material.
Preferably, the low-high frequency repeated alternation means repeated alternation by 8000-.
The active micro powder containing the steel slag and the fly ash is prepared by the method and is characterized in that: the fly ash is processed by a direct discharge method. The lime is selected from the screened lime of a sieve with the mass percentage of calcium oxide and magnesium oxide being more than 70%, the mass percentage of free water being 0.4-2% and the fineness being not more than 0.9 mm. The particle size of the active micro powder is less than 14 mm.
Compared with the prior art, the invention has the beneficial effects that: 1) the active micro powder material prepared by using the air quenching steel slag and the directly discharged fly ash as main raw materials has higher hourly flexural strength and hourly compressive strength, and can meet the strength requirement of engineering recovery in two hours; the material has the characteristics of continuous and stable increase of later strength and micro-expansion, and can obtain excellent long-term quality stability; the amorphous mineral phase on the surface of the steel slag particles is obviously increased through a wind quenching method, the potential activity of the steel slag is improved, the active substance of the material can quickly permeate into the defects of capillary holes, cracks and the like of a concrete interface and a concrete matrix, the activity of the micro powder material is higher through the steel slag grinding aid, the reinforcing fiber, the polycarboxylic acid water reducing agent powder and the silicon oxide, the compatibility with cement is good, the hydration speed of the fly ash is delayed, the temperature rise of the concrete caused by hydration heat is reduced, the coal ash is very beneficial to preventing the concrete from generating temperature cracks, the binding force of the concrete is obviously improved, and the durability of the concrete is obviously improved. 2) Experiments show that the reason for further improving the performance of the steel slag structural material is influenced, the problems of uneven size of the steel slag raw material and poor grinding effect are effectively solved through the unique method and the unique device, the size of the obtained steel slag is not even after the steel slag is ground for 24 hours or even 48 hours originally, by the method, at least 65-75% of particles in the finally obtained steel slag are below 2200 meshes through selective inspection, so that the uniformity is very good, and the finally obtained micro powder is good in performance and uniform in size.
Drawings
Fig. 1 is a first schematic view of the principal structure comprising a vibrating screen group.
FIG. 2 is a second schematic view of the main structure including the funnel portion.
Fig. 3 is one of the main structural components.
Fig. 4 is a second schematic diagram of the main structural components.
Fig. 5 is a top view of the top cover from above.
Fig. 6 is a bottom view of the sump from below.
Fig. 7 is a front perspective and top view of a first shaker.
The reference numerals in the figures have the meaning: shaker group 1, top cover 11, first shaker 12, an upper portion 121, a lower portion 122, first screen 123, second shaker 13, a second upper portion 131, a second lower portion 132, second screen 133, third shaker 14, a third upper portion 141, a third lower portion 142, third screen 143, fourth shaker 15, a fourth upper portion 151, a fourth lower portion 152, fourth screen 153; the support frame 2, the upper frame 23, the fixing bolt group 24, the fixing bolt 241, the fixing nut 242, the gasket 243, the lower pipe 22 and the support frame seat 21; the first vibrator 3, the first generator 31, and the first transducer 32, the first amplitude transformer 33, the first vibrating rod 34 and the vibrating top bolt 35 which are connected in sequence from top to bottom; the side frame 4, the side frame base 41, the side lever 42, the side frame top seat 43, the first clamping group 44, the first clamping ring 441, the first flange 442, the first clamping rod 443, the first cross pin 444, the first grip 445, the second clamping group 45, the second clamping ring 451, the second flange 452, the second clamping rod 453, the second cross pin 454, the second grip 455, the third clamping group 46, the third clamping ring 461, the third flange 462, the third clamping rod 463, the third cross pin 464, the third grip 465, the fourth clamping group 47, the fourth clamping ring 471, the fourth flange 472, the fourth clamping rod 473, the fourth cross pin 474, the fourth grip 475, the fifth clamping group 48, the fifth clamping ring 481, the fifth flange 482, the fifth clamping rod 483, the fifth cross pin 484, and the fifth clamping group 48; the ultrasonic clamping frame 5, the second generator 51, the second transducer 52, the second amplitude transformer 53, the vibration clamp 54, the upper clamping tube 55, the lower clamping tube 56, the cross screw 57, the sleeve part 58 and the clamping seat 59; the funnel part 6, the funnel 61, the funnel mouth 611, the clamping ring 62, the left screw rod group 63 and the left vertical rod 631, the left vertical rod 631 is fixed with a left upper clamping part 632, a left middle clamping part 633, a left lower clamping part 636, a right screw rod group 64 and a right vertical rod 641 from top to bottom, and the right vertical rod 641 is fixed with a right upper clamping part 642, a right middle clamping part 643, a right lower clamping part 646 and a controller 65 from top to bottom; a mill hopper 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a slag crushing auxiliary device which characterized in that: comprises a vibrating screen group 1, a supporting frame 2, a first vibrator 3, a side frame 4, an ultrasonic clamping frame 5, a funnel part 6 and a grinder hopper 7. The vibrating screen group 1 is provided with a top cover 11, a first vibrating screen 12, a second vibrating screen 13, a third vibrating screen 14, a fourth vibrating screen 15 and a bottom groove 16 from top to bottom in sequence.
The first vibrating screen 12, the second vibrating screen 13, the third vibrating screen 14 and the fourth vibrating screen 15 are respectively fixed with a first screen 123 with 120-.
The top cover 11 has a downward flange on the outside and is fastened to the upper part of the first vibrating screen 12. The top cover 11 has a concave upper recess 111 in the shape of a Chinese character 'yi'. The first vibrating screen 12, the second vibrating screen 13, the third vibrating screen 14, the fourth vibrating screen 15 and the bottom groove 16 are hollow cylindrical shapes with the same size, the lower portion of the bottom groove 16 is provided with a closed bottom, and the lower surface of the bottom is provided with a concave linear lower concave portion 161.
The support frame 2 comprises an upper frame 23, a fixing bolt group 24, a lower tube 22 and a support frame seat 21 from top to bottom in sequence. The upper frame 23 is formed by integrally forming the top of a rectangular frame shaped like a straight line and a cylindrical frame column. The top of the shelf is pushed into the lower recess 161 and fixed.
The first vibrator 3 comprises a first generator 31, and a first transducer 32, a first amplitude transformer 33, a first vibrating rod 34 and a vibrating top bolt 35 which are sequentially connected from top to bottom. The vibration plug 35 is a rectangular parallelepiped in a shape of a straight line, and the vibration plug 35 is fixed by being pushed into the upper concave portion 111. The first generator 31 supplies the first transducer 32 with an ultrasonic signal.
The side frame 4 comprises a side frame base 41, a side rod 42, a side frame top seat 43, a first clamping group 44, a second clamping group 45, a third clamping group 46, a fourth clamping group 47 and a fifth clamping group 48, wherein the side rod 42 is vertical, the side frame base 41 is fastened on the ground, the side frame top seat 43 is fastened on the roof, and the first clamping group 44, the second clamping group 45, the third clamping group 46, the fourth clamping group 47 and the fifth clamping group 48 are all in a hollow phi shape and respectively and horizontally clamp and fix the first vibrating screen 12, the second vibrating screen 13, the third vibrating screen 14, the fourth vibrating screen 15 and the bottom groove 16.
The ultrasonic clamping frame 5 comprises a second generator 51, a second transducer 52, a second amplitude transformer 53, a vibration clamp 54, an upper clamping tube 55, a lower clamping tube 56, a transverse screw 57, a sleeve part 58 and a clamping seat 59, wherein the second generator 51 supplies ultrasonic signals to the second transducer 52, the second amplitude transformer 53 and the vibration clamp 54 are sequentially connected from right to left, the vibration clamp is Y-shaped in plan view and is provided with a large semicircular ring part attached to the outer side of the vibration sieve, the large semicircular ring part is 13/24-7/12 circular rings, the bottom of the lower clamping tube 56 is screwed into the center of the clamping seat 59 and is fixed, the sleeve part 58 is sleeved at the top of the lower clamping tube 59, the right side of the sleeve part 58 is provided with the transverse screw 57 screwed from a screw hole, and the transverse screw 57 is screwed into the upper clamping tube 56 extending into the gap part at the right side of the top of the lower clamping tube 56.
The funnel part 6 comprises a funnel 61, a clamping ring 62, a left screw rod group 63, a right screw rod group 64 and a controller 65, wherein the funnel 61 consists of an upper cylindrical part, a conical part and a hopper opening 611 at the lower part, the upper cylindrical part is clamped by the stainless steel clamping ring 62, the left and the right of the clamping ring 62 are respectively supported by the left screw rod group 63 and the right screw rod group 64, and motors of the left screw rod group 63 and the right screw rod group 64 rotate simultaneously to enable the funnel 61 to ascend or descend.
The grinder hopper 7 is located directly below the hopper opening 611.
Preferably, the first vibrating screen 12 is formed by splicing an upper part 121 and a lower part 122 of two hollow cylindrical shapes, an upper part 121 and a lower part 122, a first screen mesh 123 is clamped and fixed between the upper part 121 and the lower part 122, and the upper part 121 and the lower part 122 are fixed by N long bolts uniformly distributed in the circumferential direction. The second vibrating screen 13 is formed by splicing two upper parts 131 and two lower parts 132 of upper and lower hollow cylindrical shapes, a second screen mesh 133 is clamped and fixed between the two upper parts 131 and the two lower parts 132, and the two upper parts 131 and the two lower parts 132 are fixed by N long bolts which are uniformly distributed in the circumferential direction. The third vibrating screen 14 is formed by splicing an upper hollow cylindrical three upper part 141 and a lower hollow cylindrical three lower part 142, a third screen 143 is clamped and fixed between the three upper part 141 and the three lower part 142, and the three upper part 141 and the three lower part 142 are fixed by N long bolts uniformly distributed in the circumferential direction. The fourth vibrating screen 15 is formed by splicing an upper hollow cylindrical four upper part 151 and a lower hollow cylindrical four lower part 152, a fourth screen 153 is clamped and fixed between the upper part 151 and the lower part 152, and the upper part 151 and the lower part 152 are fixed by N long bolts which are uniformly distributed in the circumferential direction.
The fixing bolt group 24 includes a fixing bolt 241, a fixing nut 242 and a pair of washers 243, the lower end of the column of the upper frame 23 extends into the lower tube 22, the fixing bolt 241 penetrates through a pair of prepared holes of the column and the lower tube, and is screwed and fixed with the washers 243 padded inside the head and the nut of the fixing bolt 241.
The first clamping group 44 includes a first clamping ring 441, a first flange portion 442, a first clamping rod 443, a first cross pin 444 and a first holding portion 445, wherein the first clamping ring 441 is a circular ring and the first clamping rod 443 is an elongated and cylindrical body, the first clamping ring 441 is horizontal, the first clamping rod 443 protrudes rightward from the right side of the first clamping ring 441, and the first flange portion 442 is a pair of flanges on the first clamping ring 441 on opposite sides of the first clamping rod 443 and has a gap therebetween that is not connected. The first clamping rod 443 is inserted into the first large hole of the side bar 42 and fixed by the first cross bolt 444 passing through the front and rear through holes of the first clamping rod 443 and the side bar 42, and the first holding portion 445 is an engineering plastic part tightly sleeved on the first clamping rod 443 and has an irregular holding groove on the outside.
The second clamping group 45 comprises a second clamping ring 451, a second flange part 452, a second clamping rod 453, a second cross bolt 454 and a second holding part 455, wherein the second clamping ring 451 is a circular ring and the second clamping rod 453 is an elongated cylindrical rod, the second clamping ring 451 is horizontal, the second clamping rod 453 protrudes rightwards from the right side of the second clamping ring 451, and the second flange part 452 is a pair of flanges on the second clamping ring 451 at the opposite side of the second clamping rod 453 and has a gap therebetween. The second clamping bar 453 is inserted into the second large hole of the side bar 42 and fixed by a second cross pin 454 simultaneously inserted through the second clamping bar 453 and the front and rear through holes of the side bar 42, and the second holding part 455 is an engineering plastic material tightly fitted over the second clamping bar 453 and has an irregular holding groove on the outside.
The third clamping group 46 includes a third clamping ring 461, a third flange part 462, a third clamping rod 463, a third cross bolt 464 and a third holding part 465, the third clamping ring 461 is circular and the third clamping rod 463 is cylindrical and elongated, the third clamping ring 461 is horizontal, the third clamping rod 463 extends from the right side of the third clamping ring 461 to the right, and the third flange part 462 is a pair of flanges on the third clamping ring 461 at the opposite sides of the third clamping rod 463 and has a gap therebetween. The third holding lever 463 penetrates the third large hole of the side lever 42 and is fixed by a third cross pin 464 passing through the third holding lever 463 and the front and rear through holes of the side lever 42, and the third holding part 465 is an engineering plastic part tightly fitted over the third holding lever 463 and has an irregular holding groove on the outside.
The fourth clamping group 47 includes a fourth clamping ring 471, a fourth flange part 472, a fourth clamping rod 473, a fourth cross bolt 474 and a fourth holding part 475, the annular fourth clamping ring 471 and the elongated cylindrical fourth clamping rod 473 are integrally formed, the fourth clamping ring 471 is horizontal, the fourth clamping rod 473 extends rightward from the right side of the fourth clamping ring 471, and the fourth flange part 472 is a pair of flanges on the fourth clamping ring 471 at the opposite side of the fourth clamping rod 473 and has a gap therebetween. The fourth clamping bar 473 is inserted into the fourth large hole of the side bar 42 and fixed by the fourth cross pin 474 passing through the fourth clamping bar 473 and the front and rear through holes of the side bar 42, and the fourth holding part 475 is made of an engineering plastic material tightly fitted over the fourth clamping bar 473 and has an irregular holding groove on the outside thereof.
The fifth clamping group 48 includes a fifth clamping ring 481, a fifth flange portion 482, a fifth clamping rod 483, a fifth cross pin 484, and a fifth grip portion 485, the fifth clamping ring 481 is a circular ring and the fifth clamping rod 483 is an integral body, the fifth clamping ring 481 is horizontal, the fifth clamping rod 483 protrudes rightward from the right side of the fifth clamping ring 481, and the fifth flange portion 482 is a pair of flanges on the fifth clamping ring 481 at the opposite side of the fifth clamping rod 483 and has a gap therebetween. The fifth clamping rod 483 is inserted into the fifth large hole of the side bar 42 and fixed by a fifth cross pin 484 simultaneously passing through the fifth clamping rod 483 and the front and rear through holes of the side bar 42, and the fifth grip 485 is an engineering plastic tightly fitted over the fifth clamping rod 483 and has an irregular holding groove on the outside.
The left screw rod group 63 is provided with a left vertical rod 631 fixed on the ground, an upper left clamping portion 632, a middle left clamping portion 633 and a lower left clamping portion 636 are fixed on the left vertical rod 631 from top to bottom, the upper left screw rod end portion 634 is fixed in the upper left clamping portion 632, a left motor 638 is installed on the lower left clamping portion 636, a motor rod of the left motor is coaxially connected with a left coupler which is installed on the middle left clamping portion 633 and can freely rotate, a left screw rod 635 is connected between the lower portion of the upper left screw rod end portion 634 and the lower end of the left coupler, and a left screw nut 637 matched with the left screw rod 635 is embedded in the left edge of the clamping ring 62 and is matched with the left screw rod 635 through threads.
The right screw rod group 64 is provided with a right vertical rod 641 fixed on the ground, a right upper clamping portion 642, a right middle clamping portion 643 and a right lower clamping portion 646 are fixed on the right vertical rod 641 from top to bottom, the upper end portion 644 of the right screw rod is fixed in the right upper clamping portion 642, a right motor 648 is installed on the right lower clamping portion 646, the motor rod of the right motor 648 is coaxially connected with a right coupling installed on the right middle clamping portion 643 and capable of rotating freely, a right screw rod 645 is connected between the lower portion of the upper end portion 644 of the right screw rod and the lower end of the right coupling, and a right screw nut 647 matched with the right screw rod 645 is embedded at the right edge of the clamping ring 62 and the thread of the right screw.
Said N is at least 4. The screen mesh of all the vibrating screens is made of stainless steel, and the parts except the screen mesh are made of opaque polytetrafluoroethylene.
The support frame 2 is made of stainless steel, the vibrating rod 34 and the vibrating top bolt 35 are made of stainless steel, the side frame base and the side frame top base are made of engineering plastics, the side rods are made of stainless steel, the holding parts in all the clamping groups are made of engineering plastics, and other parts in the clamping groups are made of stainless steel. The sleeve part 58 is made of engineering plastics, and the vibration clamp 54, the upper clamping tube 55, the lower clamping tube 56, the transverse screw 57 and the clamping seat 59 are made of stainless steel.
Example 2
The preparation method of the active micro powder containing the air quenching steel slag and the fly ash is carried out by utilizing the device in the embodiment 1 and specifically comprises the following steps.
(1) Weighing raw materials: respectively weighing 60-70% of steel slag, 20-30% of fly ash, 0.7-2% of steel slag grinding aid, 16-20% of lime, 0.1-0.3% of polycarboxylate superplasticizer powder, 0.2-0.6% of activator, 0.1-0.3% of silicon oxide and 0.1-0.3% of reinforcing fiber according to mass percentage.
(2) Grading and screening: the steel slag crushing auxiliary device according to claim 3, wherein the steel slag, the steel slag grinding aid and the fly ash weighed in the step 1 are poured on the first vibrating screen 12, the top cover is fastened, the first vibrating screen 12, the second vibrating screen 13, the third vibrating screen 14, the fourth vibrating screen 15 and the bottom groove 16 are aligned in the vertical direction, the vibrating screen group 1 is clamped up and down by the vibrating top bolt 35 and the upper frame 23, the first generator 31 is started, and the steel slag, the steel slag grinding aid and the fly ash are vibrated for at least 1 hour in a low-high frequency repeated alternating mode. A crude product, a secondary crude product, a tertiary crude product, a quaternary crude product and a fine product are respectively formed in the first vibrating screen 12, the second vibrating screen 13, the third vibrating screen 14, the fourth vibrating screen 15 and the bottom groove 16.
(3) Multiple grinding steps: the vibrating top bolt 35 and the top cover 11 are moved away, the position of the upper frame 23 is lowered, the first cross bolt 444 and the first holding portion 445 are pulled out, the first vibrating screen and the first clamping ring are moved out and inserted and fixed from the right side of the same hole, the first holding portion 445 is sleeved, the controller 65 controls the funnel 61 to rise to the position right below the first vibrating screen, the grinding machine hopper is located right below the hopper opening 611, the first holding portion 445 is held and rotated 180 degrees to enable most of materials to fall down, the first cross bolt is inserted and fixed, the controller 65 controls the funnel 61 to rise to the position where the upper portion of the funnel is contacted with the edge of the first vibrating screen, the height of the vibrating clamp 54 is adjusted to be slightly lower than that of the first clamping ring, and the vibrating clamp is moved transversely to clamp the first vibrating screen. The second generator 51 was started to vibrate at 15000-. The second cross bolt 454 and the second holding part 455 are pulled out, the second vibrating screen together with the second clamping ring is moved out and inserted and fixed from the right side of the same hole, the second holding part 455 is sleeved, the controller 65 controls the hopper 61 to be lifted to the position right below the second vibrating screen, the grinding machine hopper is positioned right below the hopper opening 611, the second holding part 445 is held and rotated by 180 degrees to enable most of the materials to fall down, the second cross bolt is inserted and fixed, the controller 65 controls the hopper 61 to be lifted to the position where the upper part is contacted with the side of the second vibrating screen, the height of the vibrating clamp 54 is adjusted to be slightly lower than that of the second clamping ring, and the vibrating clamp moves transversely to clamp the second vibrating screen. The second generator 51 was started to vibrate at 15000-. Pulling out a third transverse bolt and a third holding part, moving out a third vibrating screen together with a third clamping ring, inserting and fixing the third vibrating screen and the third clamping ring from the right side of the same hole, sleeving the third holding part on the third clamping ring, controlling the funnel to rise to be under the third vibrating screen by the controller, enabling the hopper of the grinding machine to be positioned under the hopper opening 611, holding the third holding part and rotating 180 degrees to enable most of materials to fall down, inserting the third transverse bolt for fixing, controlling the funnel 61 to rise to the upper part by the controller 65 to be in contact with the edge of the third vibrating screen, and adjusting the height of the vibrating clamp 54 to be slightly lower than the third clamping ring and transversely moving and clamping the third vibrating screen. The second generator 51 was started to vibrate at 15000-. Pull out fourth horizontal bolt and fourth portion of gripping, shift out fourth shale shaker and insert fixedly from the right side in same hole with the fourth grip ring, sheathe the fourth portion of gripping in, controller control funnel risees to the fourth shale shaker under, and make and grind the machine hopper and be located under fill mouth 611, grip the fourth portion of gripping and rotate 180 and make most of material fall down, it is fixed to insert the fourth horizontal bolt, controller 65 control funnel 61 risees to upper portion and fourth shale shaker limit contact, adjust the height of vibration clamp 54 to being slightly less than fourth grip ring and lateral shifting centre gripping fourth shale shaker. Starting the second generator 51 to vibrate at 15000-.
(4) Ultra-fine grinding: and pouring the product obtained in the step three and the fine product in the bottom tank into a gravity-free mixing stirrer, and stirring for 10 min. And adding the lime weighed in the step 1, 0.1-0.3% of polycarboxylate superplasticizer powder, 0.2-0.6% of excitant, 0.1-0.3% of silicon oxide and 0.1-0.3% of reinforcing fiber, and continuously stirring in a gravity-free mixing stirrer for 30-60 minutes to obtain the active micro powder composite material.
Preferably, the low-high frequency repeated alternation means repeated alternation by 8000-.
The active micro powder containing the steel slag and the fly ash is prepared by the method and is characterized in that: the fly ash is processed by a direct discharge method. The lime is selected from the screened lime of a sieve with the mass percentage of calcium oxide and magnesium oxide being more than 70%, the mass percentage of free water being 0.4-2% and the fineness being not more than 0.9 mm. The particle size of the active micro powder is less than 14 mm.
Example 3
The same as the embodiment of example 2, except that: (1) weighing raw materials: respectively weighing 62% of steel slag, 20.8% of fly ash, 0.7% of steel slag grinding aid, 16% of lime, 0.1% of polycarboxylate superplasticizer powder, 0.2% of excitant, 0.1% of silicon oxide and 0.1% of reinforcing fiber according to mass percentage.
(2) Grading and screening: the vibration was repeated for at least 1.5 hours using low and high frequencies.
(3) Multiple grinding steps: the fifth vibration of the second generator is to start the second generator 51 to vibrate at 15000- & 16000Hz for 10min and start the grinder to grind for at least 1.5 hours to obtain the third product.
(4) Ultra-fine grinding: stirring the mixture for 30 minutes in a gravity-free mixing stirrer to obtain the active micro powder composite material.
Preferably, the low-high frequency repeated alternation means repeated alternation by 8000-9000Hz vibration 20s and 24000-26000Hz vibration 20 s.
The lime is selected from the screened lime of a sieve with the mass percentage of calcium oxide and magnesium oxide being more than 72%, the mass percentage of free water being 0.4-1% and the fineness being not more than 0.8 mm. The active micropowder has a particle size of about 13 mm.
Example 4
The same as the embodiment of example 2, except that: (1) weighing raw materials: weighing 61% of steel slag, 20.4% of fly ash, 0.7% of steel slag grinding aid, 17% of lime, 0.2% of polycarboxylate superplasticizer powder, 0.3% of excitant, 0.2% of silicon oxide and 0.2% of reinforcing fiber according to mass percentage.
(2) Grading and screening: the vibration was repeated for at least 2 hours using low and high frequencies.
(3) Multiple grinding steps: the fifth vibration of the second generator is to start the second generator 51 to vibrate at 17000-.
(4) Ultra-fine grinding: stirring for 45 minutes in a gravity-free mixing stirrer to obtain the active micro powder composite material.
Preferably, the low-high frequency repeated alternation means repeated alternation by 9000-10000Hz vibration 20s and 26000-28000Hz vibration 20 s.
The lime is selected from the screened lime of a sieve with the mass percentage of calcium oxide and magnesium oxide being more than 73 percent, the mass percentage of free water being 0.6-1.2 percent and the fineness being not more than 0.7 mm. The active micropowder has a particle size of about 12 mm.
The working principle is as follows: through practice, our analysis, the particle size distribution of slag is too wide, greatly influenced the effect of grinding, and the slag crocus is not enough even, directly leads to the performance of miropowder not good, we have considered several popular modes, including with shale shaker etc. all do not get better effect, our hope is that the material does not lose, can divide the slag according to the granularity after relatively convenient lossless transfer to grinding, do not have such device among the prior art, this problem has been solved to the perfect drop of device of our design. The ultrasonic wave is applied twice in the front and the back, so that the steel slag can be well screened for the first time, the materials can not be left by the vibrating screen for the second time, and the loss rate of the materials is ensured.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a slag crushing auxiliary device which characterized in that:
the ultrasonic vibration grinding machine comprises a vibrating screen group (1), a support frame (2), a first vibrator (3), a side frame (4), an ultrasonic clamping frame (5), a funnel part (6) and a grinding machine hopper (7);
the vibrating screen group (1) is sequentially provided with a top cover (11), a first vibrating screen (12), a second vibrating screen (13), a third vibrating screen (14), a fourth vibrating screen (15) and a bottom groove (16) from top to bottom;
a first screen (123) with 120 meshes and 240 meshes, a second screen (133) with 600 meshes and 800 meshes, a third screen (143) with 1200 meshes and 1500 meshes and a fourth screen (153) with 2200 meshes and 3800 meshes are respectively fixed in the first vibrating screen (12), the second vibrating screen (13), the third vibrating screen (14) and the fourth vibrating screen (15), and the four screens are in a horizontal state;
the outer side of the top cover (11) is provided with a downward flange and is tightly buckled at the upper part of the first vibrating screen (12); the upper surface of the top cover (11) is provided with a concave upper concave part (111) shaped like a Chinese character 'yi'; the first vibrating screen (12), the second vibrating screen (13), the third vibrating screen (14), the fourth vibrating screen (15) and the bottom groove (16) are in the shape of a hollow cylinder with the same size, the lower part of the bottom groove (16) is provided with a closed bottom, and the lower surface of the bottom is provided with a concave linear lower concave part (161);
the supporting frame (2) is provided with an upper frame (23), a fixing bolt group (24), a lower pipe (22) and a supporting frame seat (21) from top to bottom in sequence; the upper frame (23) is formed by integrally molding the top of a straight rectangular frame and a cylindrical frame column; the top of the frame is pushed into the lower concave part (161) for fixing;
the first vibrator (3) comprises a first generator (31), a first transducer (32), a first amplitude transformer (33), a first vibrating rod (34) and a vibrating top bolt (35), wherein the first transducer (32), the first amplitude transformer (33), the first vibrating rod (34) and the vibrating top bolt are sequentially connected from top to bottom; the vibration top bolt (35) is a rectangular body in a shape of Chinese character 'yi', and the vibration top bolt (35) is pushed into the upper concave part (111) for fixing; the first generator (31) supplies an ultrasonic signal to the first transducer (32);
the side frame (4) comprises a side frame base (41), side rods (42), a side frame footstock (43), a first clamping group (44), a second clamping group (45), a third clamping group (46), a fourth clamping group (47) and a fifth clamping group (48), wherein the side rods (42) are vertical, the side frame base (41) is fastened on the ground, the side frame footstock (43) is fastened on the roof, the first clamping group (44), the second clamping group (45), the third clamping group (46), the fourth clamping group (47) and the fifth clamping group (48) are hollow phi-shaped, and respectively and horizontally clamp and fix the first vibrating screen (12), the second vibrating screen (13), the third vibrating screen (14), the fourth vibrating screen (15) and the bottom groove (16);
the ultrasonic clamping frame (5) comprises a second generator (51), a second transducer (52), a second amplitude transformer (53), a vibration clamp (54), an upper clamping pipe (55), a lower clamping pipe (56), a transverse screw (57), a sleeve part (58) and a clamping seat (59), wherein the second generator (51) supplies ultrasonic signals to the second transducer (52), the second amplitude transformer (53) and the vibration clamp (54) are sequentially connected from right to left, the vibration clamp is Y-shaped in plan view and is provided with a large semicircular ring part attached to the outer side of the vibration sieve, the large semicircular ring part is 13/24-7/12 circular rings, the bottom of the lower clamping tube (56) is screwed into the center of the clamping seat (59) and fixed, the top of the lower clamping tube is sleeved with a sleeve part (58), a transverse screw (57) screwed from a screw hole is arranged on the right side of the sleeve part (58), and the transverse screw (57) is screwed from a gap part on the right side of the top of the lower clamping tube (56) and fixedly extends into the upper clamping tube (56);
the funnel part (6) comprises a funnel (61), a clamping ring (62), a left screw rod group (63), a right screw rod group (64) and a controller (65), the funnel (61) consists of an upper cylindrical part, a conical part and a hopper opening (611) at the lower part, the upper cylindrical part is clamped by the stainless steel clamping ring (62), the left side and the right side of the clamping ring (62) are respectively supported by the left screw rod group (63) and the right screw rod group (64), and motors of the left screw rod group (63) and the right screw rod group (64) rotate simultaneously to enable the funnel (61) to ascend or descend;
the grinder hopper (7) is located directly below the hopper opening (611).
2. The steel slag crushing auxiliary device according to claim 1, characterized in that:
the first vibrating screen (12) is formed by splicing an upper part (121) and a lower part (122) of an upper hollow cylinder type and a lower hollow cylinder type, a first screen mesh (123) is clamped and fixed between the upper part (121) and the lower part (122), and the upper part (121) and the lower part (122) are fixed by N long bolts which are uniformly distributed in the circumferential direction;
the second vibrating screen (13) is formed by splicing an upper hollow cylindrical second upper part (131) and a lower hollow cylindrical second lower part (132), a second screen (133) is clamped and fixed between the upper part (131) and the lower part (132), and the upper part (131) and the lower part (132) are fixed by N long bolts which are uniformly distributed in the circumferential direction;
the third vibrating screen (14) is formed by splicing an upper hollow cylindrical three upper part (141) and a lower hollow cylindrical three lower part (142), a third screen (143) is clamped and fixed between the three upper part (141) and the three lower part (142), and the three upper part (141) and the three lower part (142) are fixed by N long bolts which are uniformly distributed in the circumferential direction;
the fourth vibrating screen (15) is formed by splicing an upper hollow cylindrical four upper part (151) and a lower hollow cylindrical four lower part (152), a fourth screen (153) is clamped and fixed between the upper four part (151) and the lower four part (152), and the upper four part (151) and the lower four part (152) are fixed by N long bolts which are uniformly distributed in the circumferential direction;
the fixing bolt group (24) comprises a fixing bolt (241), a fixing nut (242) and a pair of gaskets (243), the lower end of the upper frame (23) extends into the lower pipe (22), the fixing bolt (241) penetrates through a pair of reserved holes in the upper frame and the lower pipe, and the fixing bolt is screwed and fixed under the condition that the gaskets (243) are padded on the head of the fixing bolt (241) and the inner side of the nut;
the first clamping group (44) comprises a first clamping ring (441), a first flange part (442), a first clamping rod (443), a first cross bolt (444) and a first holding part (445), wherein the first clamping ring (441) in a circular ring shape and the first clamping rod (443) in an elongated cylindrical shape are integrally formed, the first clamping ring (441) is horizontal, the first clamping rod (443) protrudes rightwards from the right side of the first clamping ring (441), the first flange part (442) is a pair of flanges which are positioned on the first clamping ring (441) and are positioned on the opposite sides of the first clamping rod (443), and a gap which is not connected is arranged between the flanges; the first clamping rod (443) penetrates through the first big hole on the side rod (42) and is fixed by a first cross bolt (444) simultaneously penetrating through the first clamping rod (443) and the front and rear through holes on the side rod (42), the first holding part (445) is an engineering plastic part tightly sleeved on the first clamping rod (443) and is externally provided with an irregular holding groove;
the second clamping group (45) comprises a second clamping ring (451), a second flange part (452), a second clamping rod (453), a second cross bolt (454) and a second holding part (455), the second clamping ring (451) in a circular ring shape and the second clamping rod (453) in an elongated cylindrical shape are integrally formed, the second clamping ring (451) is horizontal, the second clamping rod (453) protrudes rightwards from the right side of the second clamping ring (451), the second flange part (452) is a pair of flanges which are positioned on the second clamping ring (451) and are positioned on the opposite sides of the second clamping rod (453), and a gap which is not connected is arranged between the flanges; the second clamping rod (453) penetrates into a second large hole in the side rod (42) and is fixed by a second transverse bolt (454) which simultaneously penetrates through the second clamping rod (453) and a front through hole and a rear through hole in the side rod (42), the second holding part (455) is an engineering plastic part tightly sleeved on the second clamping rod (453) and is externally provided with an irregular holding groove;
the third clamping group (46) comprises a third clamping ring (461), a third flange part (462), a third clamping rod (463), a third cross bolt (464) and a third holding part (465), the third clamping ring (461) in a circular ring shape and the third clamping rod (463) in an elongated cylindrical shape are integrally formed, the third clamping ring (461) is horizontal, the third clamping rod (463) extends rightwards from the right side of the third clamping ring (461), and the third flange part (462) is a pair of flanges which are positioned on the third clamping ring (461) and are positioned on the opposite sides of the third clamping rod (463) and provided with unconnected seams in the middle; the third clamping rod (463) penetrates into a third large hole on the side rod (42) and is fixed by a third transverse bolt (464) which simultaneously penetrates through the third clamping rod (463) and a front through hole and a rear through hole on the side rod (42), and a third holding part (465) is an engineering plastic part tightly sleeved on the third clamping rod (463) and is externally provided with an irregular holding groove;
the fourth clamping group (47) comprises a fourth clamping ring (471), a fourth flange part (472), a fourth clamping rod (473), a fourth cross bolt (474) and a fourth holding part (475), the annular fourth clamping ring (471) and the elongated cylindrical fourth clamping rod (473) are integrally formed, the fourth clamping ring (471) is horizontal, the fourth clamping rod (473) extends rightwards from the right side of the fourth clamping ring (471), the fourth flange part (472) is a pair of flanges which are positioned on the fourth clamping ring (471) and positioned on the opposite side of the fourth clamping rod (473), and a gap which is not connected is formed between the flanges; the fourth clamping rod (473) penetrates through a fourth big hole in the side rod (42) and is fixed by a fourth cross bolt (474) which simultaneously penetrates through the fourth clamping rod (473) and a front through hole and a rear through hole in the side rod (42), and a fourth holding part (475) is an engineering plastic part tightly sleeved on the fourth clamping rod (473) and is externally provided with an irregular holding groove;
the fifth clamping group (48) comprises a fifth clamping ring (481), a fifth flange part (482), a fifth clamping rod (483), a fifth cross bolt (484) and a fifth holding part (485), the fifth clamping ring (481) in a circular ring shape and the fifth clamping rod (483) in an elongated cylindrical shape are integrally formed, the fifth clamping ring (481) is horizontal, the fifth clamping rod (483) protrudes rightwards from the right side of the fifth clamping ring (481), the fifth flange part (482) is a pair of flanges which are positioned on the fifth clamping ring (481) and are positioned on the opposite sides of the fifth clamping rod (483), and a gap which is not connected is arranged in the middle of the pair of flanges; the fifth clamping rod (483) penetrates into a fifth large hole on the side rod (42) and is fixed by a fifth cross bolt (484) which simultaneously penetrates through the fifth clamping rod (483) and a front and back through hole on the side rod (42), the fifth holding part (485) is an engineering plastic piece tightly sleeved on the fifth clamping rod (483) and is externally provided with an irregular holding groove;
the left screw rod group (63) is provided with a left vertical rod (631) fixed on the ground, an upper left clamping portion (632), a middle left clamping portion (633) and a lower left clamping portion (636) are fixed on the left vertical rod (631) from top to bottom, the upper end portion (634) of the left screw rod is fixed in the upper left clamping portion (632), a left motor (638) is installed in the lower left clamping portion (636), the motor rod of the left motor is coaxially connected with a left coupler which is installed in the middle left clamping portion (633) and can rotate freely, a left screw rod (635) is connected between the lower portion of the upper end portion (634) of the left screw rod and the lower end of the left coupler, a left nut (637) matched with the left screw rod (635) is embedded in the left edge of the clamping ring (62), and the thread of the left nut (637) is matched with;
the right screw rod group (64) is provided with a right vertical rod (641) fixed on the ground, a right upper clamping portion (642), a right middle clamping portion (643) and a right lower clamping portion (646) are fixed on the right vertical rod (641) from top to bottom, the upper end portion (644) of the right screw rod is fixed in the right upper clamping portion (642), a right motor (648) is installed on the right lower clamping portion (646), the motor rod of the right motor is coaxially connected with a right coupler which is installed on the right middle clamping portion (643) and can rotate freely, a right screw rod (645) is connected between the lower portion of the upper end portion (644) of the right screw rod and the lower end of the right coupler, and a right screw nut (647) matched with the right screw rod (645) is embedded at the right edge of the clamping ring (62) and is matched with the right screw rod (.
3. The steel slag crushing auxiliary device according to claim 2, characterized in that:
said N is at least 4;
the screen meshes of all the vibrating screens are made of stainless steel materials, and the parts except the screen meshes are made of opaque polytetrafluoroethylene;
the support frame (2) is made of stainless steel, the vibrating rod (34) and the vibrating top bolt (35) are made of stainless steel, the side frame base and the side frame top seat are made of engineering plastics, the side rods are made of stainless steel, the holding parts in all the clamping groups are made of engineering plastics, and other parts in the clamping groups are made of stainless steel; the sleeve part (58) is made of engineering plastics, and the vibration clamp (54), the upper clamping pipe (55), the lower clamping pipe (56), the transverse screw (57) and the clamping seat (59) are all made of stainless steel.
4. A preparation method of active micro powder containing air quenching steel slag and fly ash comprises the following steps:
(1) weighing raw materials: respectively weighing 60-70% of steel slag, 20-30% of fly ash, 0.7-2% of steel slag grinding aid, 16-20% of lime, 0.1-0.3% of polycarboxylate superplasticizer powder, 0.2-0.6% of activator, 0.1-0.3% of silicon oxide and 0.1-0.3% of reinforcing fiber according to mass percentage;
(2) grading and screening: the steel slag crushing auxiliary device of claim 3, pouring the steel slag, the steel slag grinding aid and the fly ash weighed in the step 1 onto a first vibrating screen (12), fastening a top cover, aligning the first vibrating screen (12), a second vibrating screen (13), a third vibrating screen (14), a fourth vibrating screen (15) and a bottom groove (16) in the vertical direction, clamping a vibrating screen group (1) up and down by a vibrating top bolt (35) and an upper frame (23), starting a first generator (31), and vibrating for at least 1 hour by using a low-frequency and high-frequency repeated alternating mode; respectively forming a crude product, a secondary crude product, a tertiary crude product, a quaternary crude product and a fine product in a first vibrating screen (12), a second vibrating screen (13), a third vibrating screen (14), a fourth vibrating screen (15) and a bottom groove (16);
(3) multiple grinding steps: removing the vibrating top bolt (35) and the top cover (11), lowering the position of the upper frame (23), pulling out the first transverse bolt (444) and the first holding part (445), moving out the first vibrating screen and the first clamping ring, inserting and fixing the first vibrating screen and the first clamping ring from the right side of the same hole, sleeving the first holding part (445), controlling the funnel (61) to rise to the position right below the first vibrating screen by the controller (65), enabling the grinding machine hopper to be located right below the hopper opening (611), holding the first holding part (445), rotating 180 degrees to enable most of materials to fall, inserting the first transverse bolt for fixing, controlling the funnel (61) to rise to the position where the upper part of the funnel is in contact with the edge of the first vibrating screen by the controller (65), adjusting the height of the vibrating clamp (54) to be slightly lower than the first clamping ring, and transversely moving and clamping the first vibrating screen; starting the second generator (51) to vibrate at 15000-;
pulling out a second transverse bolt (454) and a second holding part (455), moving out a second vibrating screen and a second clamping ring, inserting and fixing the second vibrating screen and the second clamping ring from the right side of the same hole, sleeving the second holding part (455), controlling a funnel (61) to rise to be right below the second vibrating screen by a controller (65), enabling a grinding machine hopper to be located right below a hopper opening (611), holding the second holding part (445), rotating for 180 degrees to enable most of materials to fall, inserting the second transverse bolt for fixing, controlling the funnel (61) to rise to be upper to be in contact with the edge of the second vibrating screen by the controller (65), adjusting the height of a vibrating clamp (54) to be slightly lower than the second clamping ring, and transversely moving and clamping the second vibrating screen; starting the second generator (51) to vibrate at 15000-;
pulling out the third transverse bolt and the third holding part, moving out the third vibrating screen and the third clamping ring, inserting and fixing the third vibrating screen and the third clamping ring from the right side of the same hole, sleeving the third holding part on the third holding part, controlling the funnel to rise to be right below the third vibrating screen by the controller, enabling the hopper of the grinding machine to be located right below the hopper opening (611), holding the third holding part, rotating by 180 degrees to enable most of materials to fall down, inserting the third transverse bolt for fixing, controlling the funnel (61) to rise to be contacted with the third vibrating screen edge by the controller (65), adjusting the height of the vibrating clamp (54) to be slightly lower than the third clamping ring, and transversely moving and clamping the third vibrating screen; starting the second generator (51) to vibrate at 15000-;
pulling out the fourth transverse bolt and the fourth holding part, moving out the fourth vibrating screen and the fourth clamping ring, inserting and fixing the fourth vibrating screen and the fourth clamping ring from the right side of the same hole, sleeving the fourth holding part on the fourth holding part, controlling the funnel to rise to be right below the fourth vibrating screen by the controller, enabling the hopper of the grinding machine to be located right below the hopper opening (611), holding the fourth holding part, rotating by 180 degrees to enable most of materials to fall down, inserting the fourth transverse bolt for fixing, controlling the funnel (61) to rise to be contacted with the side of the fourth vibrating screen by the controller (65), adjusting the height of the vibrating clamp (54) to be slightly lower than the fourth clamping ring, and transversely moving and clamping the fourth vibrating screen; starting the second generator (51) to vibrate at 15000-;
(4) ultra-fine grinding: pouring the product obtained in the step three and the fine product in the bottom tank into a gravity-free mixing stirrer, and stirring for 10 min; and adding the lime weighed in the step 1, 0.1-0.3% of polycarboxylate superplasticizer powder, 0.2-0.6% of excitant, 0.1-0.3% of silicon oxide and 0.1-0.3% of reinforcing fiber, and continuously stirring in a gravity-free mixing stirrer for 30-60 minutes to obtain the active micro powder composite material.
5. The preparation method of the active micro powder containing the air quenching steel slag and the fly ash as claimed in claim 4, is characterized in that: the low-high frequency repeated alternation means repeated alternation by 8000-12000Hz vibration 20s and 24000-30000Hz vibration 20 s.
6. An active micro powder containing steel slag and fly ash, which is prepared by the method of claim 5, and is characterized in that:
the fly ash is processed by a direct discharge method; the lime is selected from the screened lime of a sieve with the mass percentage of calcium oxide and magnesium oxide being more than 70%, the mass percentage of free water being 0.4-2% and the fineness being not more than 0.9 mm; the particle size of the active micro powder is less than 14 mm.
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