CN106631091A - Production method of multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite - Google Patents
Production method of multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite Download PDFInfo
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- CN106631091A CN106631091A CN201610853995.5A CN201610853995A CN106631091A CN 106631091 A CN106631091 A CN 106631091A CN 201610853995 A CN201610853995 A CN 201610853995A CN 106631091 A CN106631091 A CN 106631091A
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Abstract
The invention discloses a production method of multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite. The production method is characterized by comprising the following steps: stirring materials, extruding and granulating, drying, calcining, keeping heat and sieving; and sealing and packaging to obtain the multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite, wherein the materials comprise bentonite tailings, high-viscosity attapulgite clay, zeolite, active carclazyte waste dreg, active aluminum oxide, lightweight zinc oxide, lightweight magnesium oxide, lightweight calcium carbonate, hollow microspheres, expanded perlite, expanded vermiculite and sodium dodecyl sulfate. The multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite has the characteristics of good adsorption performance, large effective specific surface area, high porosity, small bulk density, light weight and high strength and integration of micro-pores and macro-pores, and is suitable for a plurality of types of landscaping engineering including water quality purification and filtering, soil remediation, garden landscaping, roof landscaping, desertification control and the like; and the production method disclosed by the invention is applicable to production of the multifunctional bentonite tailing lightweight through hole ceramsite with different shapes including a quincunx shape, a cylindrical shape, a spherical shape and the like.
Description
Technical field
The present invention relates to haydite, and in particular to a kind of producer of multi-functional quincunx bentonite mine tailing lightweight through hole haydite
Method.
Background technology
In purification of water quality filtration treatment technique, need using substantial amounts of ceramic grain filter, the ceramic grain filter that tradition is used is
Using raw materials such as potter's clay, clay and flyash, high temperature sintering is formed Jing after granulation.Cultivate or plant various nursery stocks, flowers and plants and vegetable
During dish, also frequently with lytag, leca, haydites of book structure and flower ceramsite as soilless culture substrate.
Lytag, leca and haydites of book structure are a kind of artificial lightweight aggregates, using high-quality clay, shale or fine coal
Ash is primary raw material, and by rotary kiln high-temperature roasting, Jing is expanded to be formed, and is in alveolate texture because it is internal, thus with light
Matter, the features such as high-strength, thermal conductivity factor is low, water absorption rate is little,（Refer to national standard：GB/T 17431.1-2010 light-weight aggregates and its
Test method）.
Because artificial lightweight aggregate is after high-temperature roasting, its surface forms one layer of enamel, although artificial lightweight aggregate inside is in
The micropore of alveolate texture, but, the micropore of internal cellular shape structure is a kind of closed pore, the micropore of alveolate texture not only that
Do not connect between this, and and external environment, water absorption rate is relatively low, and moisture is practically free of inside artificial lightweight aggregate, will be artificial
Light-weight aggregate is put into water body, can only float on the surface of water, therefore, artificial lightweight aggregate can only be sprinkling upon the top layer of soil, as one
Decoration is planted, the plants such as the various nursery stocks of plantation, flowers and vegetables can not be directly used in, be not also suitable for purification of water quality filtration treatment
In technique.
Chinese patent Authorization Notice No.：The B of CN 102503539, authorized announcement date：On 04 17th, 2013, entitled " circle
Spherical attapulgite flower ceramsite ", discloses that " a kind of spherical attapulgite flower ceramsite, spherical attapulgite flower ceramsite is by height
Viscous Concave-convex clay rod powder, Concave-convex clay rod mine tailing, red bentonite in powder, sludge, diatomite mine tailing and powdered rice hulls group
Into.The dispensing of spherical attapulgite flower ceramsite is packaged as into spheroidal through mixing, granulation, roasting, cooling and screening concavo-convex
Rod flower ceramsite ".
Chinese patent Authorization Notice No.：The C of CN 100423808, authorized announcement date：It is on October 08th, 2008, entitled " recessed
The production method of convex stick ceramic grain filter ", discloses " a kind of production method of concave convex stick ceramic grain filter, the main points of its technical scheme
It is that the production method of concave convex stick ceramic grain filter is：Dispensing, milling, granulation, roasting, sieve, be packaged as finished product.Concave convex stick ceramic grain
Filtrate is made up of Concave-convex clay rod, gangue and volcanic ash ".
Spheroidal ceramsite preparation process：(1) in the comminutor for first addition of powdery dispensing having operated, with the height for preparing
Pressure spray water spray solution in powdery dispensing, delay powdery dispensing on the surface of powdery dispensing by the vaporific aqueous solution adhesion of high pressure
Slowly a kind of bead of diameter less than 0.5 millimeter is processed into, bead continues to roll in comminutor；(2) it is vaporific water-soluble by what is prepared
Liquid is sprayed at the surface of bead, and the bead in comminutor is sufficiently moistened in operation process, then powdery dispensing is trickled down
On the surface of Shi Run bead, powdery dispensing parcel is sticky on the surface of bead, and the volume of bead is in increase；(3) through repeatedly weight
The vaporific aqueous solution of multiple sprinkling and powdery dispensing is trickled down on the surface of Shi Run bead, powdery dispensing is with the vaporific aqueous solution one
In the encapsulation process of the another layer of layer, the volume for promoting bead is constantly increased, and is finally completed the overall process of granulation, is prepared into
A kind of higher spheroidal haydite of intensity.
Because spherical granules internal structure is very closely knit, the effective specific surface area of spherical granules is greatly reduced, circle
The proportion and bulk density of spheric granules is all than larger.
Spheroidal haydite internal structure after roasting is even closer, although the spheroidal haydite intensity after roasting compares
Height, but more cause effective ratio area and significantly reduce, and proportion and bulk density are remained than larger, so as to significantly
Reduce absorption, purification, filter capacity and the water absorption rate of spheroidal haydite.
In roasting process, haydite inside is difficult to grill thoroughly completely spheroidal haydite, by the spheroidal haydite do not grilled thoroughly
Being put into water can produce explosion and be disintegrated, and directly influence purification of water quality filter effect.
Jing multiple samplings are tested：Artificial lightweight aggregate average bulk density >=800kg/m3 on the market, mean water absorption
Rate≤18%, spherical attapulgite flower ceramsite average bulk density >=850kg/m3, mean water absorption rate≤50%, Attapulgite ceramic
Grain filtrate average bulk density >=950kg/m3, mean water absorption rate≤40%.
By contrast, the bulk density of this several haydite causes effective specific surface area smaller, water absorption rate all than larger
Than relatively low, user wish to invent fast a kind of advantages of good adsorption effect, the rate of filtration, bulk density≤800kg/m3 and water absorption rate >=
65% light ceramic, with suitable for purification of water quality filtration, soil remediation and various afforestation projects.
The content of the invention
The purpose of the present invention is to overcome weak point in prior art, there is provided a kind of multi-functional quincunx bentonite mine tailing is light
The production method of matter through hole haydite.
The production method of multi-functional quincunx bentonite mine tailing lightweight through hole haydite：By multi-functional quincunx bentonite mine tailing
The dispensing of lightweight through hole haydite is stirred, extruder grain, drying, roasting, insulation, pack as multi-functional plum blossom after screening
Shape bentonite mine tailing lightweight through hole haydite.
The dispensing of multi-functional quincunx bentonite mine tailing lightweight through hole haydite is glued by bentonite mine tailing, high viscous attapulgite
It is soil, zeolite, active white clay waste slag, activated alumina, nano zine oxide, light magnesium oxide, precipitated calcium carbonate, cenosphere, swollen
Swollen perlite, expanded vermiculite and lauryl sodium sulfate composition.
Bentonite has stronger cation exchange capacity (CEC), has certain energy of adsorption to various gases, liquid, organic substance
Power, absorption is the natural phenomena that all solids material is present, and some molecules are gathered in the phenomenon on bentonite surface for we, referred to as
Bentonitic suction-operated, this suction-operated is industrially widely applied, and bentonite adsorption can be divided into physics suction
Attached, chemisorbed and ion-exchange absorption Annex III type.Grain fineness≤0.074 millimeter of the present invention from bentonite mine tailing.
Attapulgite also known as palygorskite or Palygorskite, are the clay pits of zeopan containing Shuifu County of a kind of layer of chain structure
Thing, Concave-convex clay rod has unique layer chain structure feature, and crystal is in needle-like, threadiness or fiber collection shape.Concave convex rod
Stone clay has the good colloidal nature such as unique dispersion, high temperature resistant, salt resistance alkali and higher adsorption capacity.
High viscous Concave-convex clay rod is that Jing is broken with Concave-convex clay rod as raw material, immersion, addition, roll-in, drying, powder
A kind of natural prodcuts obtained in the technique such as broken, the good adhesion agent with viscosity higher, are mainly used in fine chemistry industry, building materials, stone
The industries such as oiling work, agricultural, environmental protection, to improve the quality and effect of product, the present invention is from the dynamic of high viscous Concave-convex clay rod
Power viscosity >=2200 mPas, product quality needs the standard for meeting JC/T 2266-2014 Concave-convex clay rod products；This
Grain fineness≤0.074 millimeter of the invention from high viscous Concave-convex clay rod.
Natural zeolite has the internal structure and Crystallochemical Properties of uniqueness so as to water suction, absorption, selectively inhale
The excellent physicochemical properties such as attached, ion exchange, catalytic reaction, acidproof and radiation hardness, are a kind of new nonmetallic ore raw materials, this
Grain fineness≤0.074 millimeter of the invention from zeolite.
Atlapulgite is a kind of odorless, tasteless, nontoxic white or cream-coloured powder or particle, and the activity Jing after decolourizing is white
Soil loses activity and becomes active white clay waste slag, and some oily factories all abandon these active white clay waste slags, if cannot and
When process, produces after the fermentation of lipid organic matter in active white clay waste slag and goes mouldy and stench, the not only wasting of resources, pollute environment and
Groundwater quality, and fire hazardous, will cause certain loss to society and enterprise；The present invention is from active white clay waste slag
Grain fineness≤0.149 millimeter.
Activated alumina is the solid material of a kind of porous, high degree of dispersion, there is very big surface area, its micropore surface tool
Characteristic required by standby catalytic action, such as absorption property, surface-active, excellent heat endurance, so being widely used as
The catalyst and catalyst carrier of chemical reaction, grain fineness≤0.074 millimeter of the present invention from activated alumina.
Nano zine oxide is a kind of new high function fine inorganic product geared to the 21st century, with common zinc oxide institute nothing
Particularity and purposes that method compares, can make high efficiency photocatalyst, for organic pollution in degrading waste water, environment purification etc..
Light magnesium oxide is the loose unformed powder of white lightweight, and odorless, tasteless is nontoxic, and volume shared by light magnesium oxide is about
Three times for heavy-burned magnesia or so, there is extremely fireproof heat-insulating property, and reinforcing agent, adhesive, the present invention selects light magnesium oxide
Grain fineness≤0.074 millimeter.
Precipitated calcium carbonate fine particles, surface are rougher, and specific surface area is big, and precipitated calcium carbonate also with not settling, easily divides
Dissipate, the characteristic such as good luster, grain fineness≤0.074 millimeter of the present invention from precipitated calcium carbonate.
Cenosphere outward appearance is canescence, is a kind of loose, powder body material of good fluidity, and cenosphere proportion is little, table
Face is smooth, intensity is big, easily dispersion, grain fineness≤0.149 millimeter of the present invention from cenosphere.
Perlite is expanded and becomes a kind of lightweight, multifunctional novel shaped material, with apparent density it is light, thermal conductivity factor is low,
The features such as chemical stability is good, grain fineness≤0.074 millimeter of the present invention from expanded perlite.
After high-temperature roasting, its volume energy expands rapidly several times to tens times to vermiculite, and the vermiculite after volumetric expansion is swollen
Swollen vermiculite, is one of mineral most light in the world, the present invention from the expanded vermiculite after crushing, the grain fineness of expanded vermiculite≤
0.074 millimeter.
Lauryl sodium sulfate is white or faint yellow powdery, is dissolved in water, insensitive to alkali and hard water, with decontamination, breast
Change and excellent foaming power, be a kind of nontoxic anion surfactant.
The technical scheme is that：
1st, the production method of multi-functional quincunx bentonite mine tailing lightweight through hole haydite：
(1) the stirring mixing for the dispensing input of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product having been operated
In machine, stirring is mixed into the mixture of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, defeated through belt feeder
It is sent to standby in the feed bin on screw extruder pelletizer top；
(2) will be used to produce the core rod of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, be placed on screw extruding
In the template of comminutor, the valve of feed bin is opened, by the mixed of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product
Compound is transported in screw extruder pelletizer, extruder grain be multi-functional quincunx bentonite mine tailing lightweight through hole haydite half into
Product；At 5～60 millimeters, length is controlled 5 for the external diameter control of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product
～60 millimeters, the through hole internal diameter control at multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product center is in the millis of ￠ 1～5
Rice, number of openings is controlled at 1～6；
(3), by multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, swinging drying oven is transported to through belt feeder
In dried, the control of swinging drying oven drying temperature at 150～250 DEG C, drying time control at 1～4 hour, swinging
Drying oven exhaust temperature is controlled at 50～100 DEG C；
By drying after multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, from the discharging of swinging drying oven
Mouth is transported to swinging roasting kiln roasting, and the temperature control of combustion chamber is at 900～950 DEG C, and roasting time control is little 1～4
When, roaster tail gas temperature control is at 150～250 DEG C；
(5) discharging opening of the multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product after roasting from swinging roaster
Discharge, by roasting after multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, through U-shaped conveying worm input
It is incubated in stainless steel cylinder storehouse, temperature retention time was controlled at 24～72 hours；
(6) the valve in stainless steel cylinder storehouse is opened, by the multi-functional quincunx bentonite mine tailing lightweight through hole cooled down after insulation
Semi-finished product is transported in cylinder vibratory sieve through belt feeder, is sieved by screen cloth, is packed after screening as many work(
Can quincunx bentonite mine tailing lightweight through hole haydite finished product, the powder after screening discharges from powder discharge line, broken haydite
Discharge from broken haydite discharge line；
(7) the technique of drying and roasting adopts reflux type, is the high temperature hot gas stream for ejecting burner, by combustion chamber
The high temperature hot gas flow tube road of the heart enters swinging roaster, and swinging roaster tail gas thermal current enters swinging drying oven, returns
Rotatable drying furnace exhaust gas are discharged by drying oven exhaust pipe；Multi-functional quincunx bentonite mine tailing lightweight through hole haydite half into
Product, are introduced into swinging drying oven and are dried, and enter back into swinging roasting kiln roasting, multi-functional quincunx after roasting
Bentonite mine tailing lightweight through hole semi-finished product, discharges, multi-functional quincunx bentonite tail from the discharging opening of swinging roaster
Ore deposit lightweight through hole semi-finished product is entered after swinging drying oven and swinging roaster, with high temperature hot gas stream and roaster tail gas
The flow direction of thermal current is contrary.
2nd, the dispensing of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product is by weight percentage by following group
It is grouped into：Bentonite mine tailing 10～35%, high viscous Concave-convex clay rod 5～25%, zeolite 5～20%, active white clay waste slag 2～
10%th, activated alumina 1～5%, nano zine oxide 1～5%, light magnesium oxide 1～5%, precipitated calcium carbonate 1～5%, hollow
Microballon 1～5%, expanded perlite 0.5～5%, expanded vermiculite 0.5～5%, lauryl sodium sulfate 0.1～5% and water 5～
40%.
Bentonite mine tailing has special property, such as bloating tendency, caking property, adsorptivity, catalytic, thixotropy and suspension
Property, bentonite mine tailing has stronger cation exchange capacity (CEC), there is certain adsorption capacity to various gases, liquid, organic substance,
Absorption and the filter effect of multi-functional quincunx bentonite mine tailing lightweight through hole haydite can be increased.
High viscous Concave-convex clay rod has the good colloidal nature such as unique dispersion, high temperature resistant, salt resistance alkali and higher
Adsorption capacity, and with certain plasticity and cohesive force, dynamic viscosity >=2200 mPas of high viscous Concave-convex clay rod,
Adhesive force is good, is conducive to the bonding between raw material, increase multi-functional quincunx bentonite mine tailing lightweight through hole haydite intensity and
Adsorption capacity.
Natural zeolite has the internal structure and Crystallochemical Properties of uniqueness so as to water suction, absorption, selectively inhale
The excellent physicochemical properties such as attached, ion exchange, catalytic reaction, acidproof and radiation hardness, can strengthen multi-functional quincunx bentonite mine tailing
The absorption of lightweight through hole haydite and filter effect.
In roasting process, the lipid organic matter in active white clay waste slag participates in multi-functional plum blossom to active white clay waste slag jointly
The roasting of shape bentonite mine tailing lightweight through hole haydite, improves the heat of combustion-gas flow, not only can save energy, also help many
The inside of function is quincunx bentonite mine tailing lightweight through hole haydite can grill thoroughly completely, increase multi-functional quincunx bentonite mine tailing light
Matter through hole haydite surface and the porosity of inside.
Activated alumina, nano zine oxide and light magnesium oxide are conducive to improving multi-functional quincunx bentonite mine tailing lightweight
The adsorption effect of through hole haydite and the intensity of the multi-functional quincunx bentonite mine tailing lightweight through hole haydite of increase.
Precipitated calcium carbonate, cenosphere, expanded perlite and expanded vermiculite can reduce multi-functional quincunx bentonite mine tailing
The bulk density of lightweight through hole haydite, increases the hole of multi-functional quincunx bentonite mine tailing lightweight through hole haydite surface and inside
Rate.
Lauryl sodium sulfate is adopted in the dispensing of multi-functional quincunx bentonite mine tailing lightweight through hole haydite, is conducive to
Substantial amounts of foam can be produced in stirring mixed process, to increase inside multi-functional quincunx bentonite mine tailing lightweight through hole haydite
Micropore.
The face shaping of multi-functional quincunx bentonite mine tailing lightweight through hole haydite be designed as it is quincunx, be conducive to increase it is many
Bentonite mine tailing lightweight through hole haydite voidage each other that function is quincunx and the multi-functional quincunx bentonite mine tailing of reduction
The bulk density of lightweight through hole haydite.
The macropore at multi-functional quincunx bentonite mine tailing lightweight through hole haydite center is designed as through hole, is conducive to plus most work(
Can quincunx bentonite mine tailing lightweight through hole haydite effective ratio area, reduce bulk density and increase multi-functional quincunx swollen
The porosity of the native mine tailing lightweight through hole haydite of profit.
Multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product moisture content after extruder grain is more than 30%, directly
Connect and be transported to swinging roaster high temperature roasting, in high-temperature calcination process, the surface of semi-finished product first starts sintering admittedly
Change, and the water vapour of inside is difficult rapid evaporation out, semi-finished product will produce explosion, nor can by haydite partly into
Grill thoroughly inside product.
Multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product is first transported to swinging drying oven by the present invention
In slowly dried, drying temperature control at 150～250 DEG C, then by drying after multi-functional quincunx bentonite mine tailing it is light
Matter through hole semi-finished product is transported to swinging roasting kiln roasting, and the temperature control of combustion chamber, can be true at 900～950 DEG C
Guarantor will not produce explosion in roasting process, be conducive to grilling thoroughly haydite.
Because swinging roaster is a kind of direct-fired mode, high temperature hot gas stream is from swinging roaster combustion chamber
After high temperature hot gas flow tube road is entered in stove, by the effect of air-introduced machine, thermal current reaches quickly the afterbody of swinging roaster, when
At 900～950 DEG C, the exhaust temperature of roaster can reach 150～250 DEG C to chamber temperature, and tail gas thermal current will be from roasting
Discharge in furnace exhaust gas pipeline, what tail gas thermal current can be in vain slatterns, and causes direct economic loss.
The present invention using reverse-flow drying and roasting technique, multi-functional quincunx bentonite mine tailing lightweight through hole haydite half into
Product are entered after drying oven and roaster, are contrary with the flow direction of thermal current, are conducive to multi-functional quincunx bentonite
Mine tailing lightweight through hole semi-finished product slowly improves the temperature of drying and roasting；In drying and roasting process, multi-functional plum blossom
Shape bentonite mine tailing lightweight through hole semi-finished product can burn semi-finished product inside through continuous uniform drying and roasting
Thoroughly.
The present invention makes full use of the waste heat of swinging roaster tail gas, and the waste heat of roaster tail gas is directly inputted into swinging
In drying oven, multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product is carried out preheating drying, it is not necessary to increase
New thermal source, can save 10～25% energy.
700 DEG C are still up in multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product after roasting in temperature
More than, by roasting after multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product input stainless steel cylinder storehouse in protect
Temperature, it is possible to use the waste heat of itself, continuation is uniformly heated to multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product,
Not only can ensure that and will completely grill thoroughly inside multi-functional quincunx bentonite mine tailing lightweight through hole haydite, moreover it is possible to play uniformly dispersing heat
The effect of amount, improves the inherent quality of multi-functional quincunx bentonite mine tailing lightweight through hole haydite.
And the production technology of conventional haydite be the haydite after roasting is directly inputted be aerated in rotary cooler it is cold
But pack afterwards, thermal loss is larger, and have influence on the quality of product.
There is substantial amounts of micropore multi-functional quincunx bentonite mine tailing lightweight through hole haydite surface and inside, are a kind of openings
Hole, not only each other insertion is also communicated open pore with the external world, multi-functional quincunx bentonite mine tailing lightweight through hole haydite center it is big
Hole is a kind of through hole, is conducive in roasting process, will can completely be grilled thoroughly inside haydite, and can increase the effective ratio table of haydite
Area, intensity and reduction bulk density.
There is the micropore being interconnected in a large number multi-functional quincunx bentonite mine tailing lightweight through hole haydite surface and inside, will be many
Function is quincunx, and bentonite mine tailing lightweight through hole haydite is put into water, it will sink under water rapidly, in the same of suction large quantity of moisture
When, the air in multi-functional quincunx bentonite mine tailing lightweight through hole haydite internal capillary is cemented out, it is multi-functional quincunx
In the dry state without dust, being immersed in all the year round in water will not also produce disintegration to bentonite mine tailing lightweight through hole haydite.
Multi-functional quincunx bentonite mine tailing lightweight through hole haydite has that absorption property is good, effective ratio area big, hole
Rate is high, bulk density is little, permeability is superior, lightweight intensity height, appearance and modeling free from extraneous odour attractive in appearance, not harmful levels of pathogens, micropore
The characteristics of being integrated with macropore.
During for purification of water quality filtration treatment technique, the rate of filtration is fast, and water environment capacity is strong, and the fine particles in water body will be by
Micropore mazy adsorbs and filters in multi-functional quincunx bentonite mine tailing lightweight through hole haydite, and water body is in flow filtration
It is purified；Multi-functional quincunx bentonite mine tailing lightweight through hole haydite is adapted to the growth of each quasi-microorganism, on its surface and interior
Stable, highly active biomembrane is formed in portion's micropore, clean-up effect of the microorganism to sewage is improved.
For heavy-metal contaminated soil reparation when, multi-functional quincunx bentonite mine tailing lightweight through hole haydite can be put into
In filling the soil of water, carry out 2～4 times and turn over and weed rake, allow multi-functional quincunx bentonite mine tailing lightweight through hole haydite with
Soil is sufficiently contacted, and multi-functional quincunx bentonite mine tailing lightweight through hole haydite will adsorb the part heavy metal in soil, and 3
After～10 days the multi-functional quincunx bentonite mine tailing lightweight through hole haydite in soil is taken out with specific purpose tool, to reduce soil
Heavy metal pollution in earth.
After the multi-functional quincunx bentonite mine tailing lightweight through hole haydite for having adsorbed part heavy metal in soil is taken out,
Carried out using methods such as chemical precipitation, redox process, solvent extraction and separation, absorption method, membrane separation process or ion-exchanges
Regeneration process, multi-functional quincunx bentonite mine tailing lightweight through hole haydite through regeneration process after, input swinging drying oven in
Dried, can be repeatedly used.
Because the micropore on multi-functional quincunx bentonite mine tailing lightweight through hole haydite surface and inside is interconnected, when
After mazy micropore is by the fine particles adsorption saturation in water body inside and outside haydite, High-Pressure Water is taken to multi-functional quincunx swollen
The native mine tailing lightweight through hole haydite of profit is backwashed, and fine particles that can be quickly by absorption in micropore inside and outside haydite rinse dry
Only, it is used further to the purification of water quality filtration treatment program of next round.With the purification of water quality rate of filtration it is fast, backwash effect is good, fortune
Line period length, the characteristics of utilization rate is high.
Although the water absorption rate of multi-functional quincunx bentonite mine tailing lightweight through hole haydite is higher, even if water absorption rate >=80%
When, the appearance of multi-functional quincunx bentonite mine tailing lightweight through hole haydite is a kind of state of moistening, not obvious water
Leak out, multi-functional quincunx bentonite mine tailing lightweight through hole haydite is packed together, numerous skies are formed each other
Gap, will not be bonded together, and permeability is good.
In order to ensure the normal growth of plant is developed, water, the fertilizer of liquid or inorganic fertilizer are sprayed at into multi-functional plum blossom
In shape bentonite mine tailing lightweight through hole haydite, it is also possible to be immersed in multi-functional quincunx bentonite mine tailing lightweight through hole haydite
In the solution of water, fertilizer or inorganic fertilizer, it is a certain amount of that multi-functional quincunx bentonite mine tailing lightweight through hole haydite absorbs storage
Take out after water or liquid fertilizer, for cultivating or planting when various nursery stocks, flowers and plants and vegetables, the root of plant is from multi-functional quincunx
Water or the nutrient content in liquid fertilizer are absorbed in bentonite mine tailing lightweight through hole haydite, it is ensured that growth and development of plants is good, survival rate
The high and life-span is longer, and can greatly reduce the number of times of moisturizing.
Multi-functional quincunx bentonite mine tailing lightweight through hole haydite is green suitable for purification of water quality filtration, soil remediation, gardens
Various greening works such as change, green barren hill, roof greening, alkaline land improvement, control of desert, Grassland Desertification improvement and home gardening
Journey.
The production method of multi-functional quincunx bentonite mine tailing lightweight through hole haydite be applied to production it is quincunx, cylindrical,
The multi-functional bentonite mine tailing lightweight through hole haydite of different shapes such as spheroidal.
Description of the drawings
Fig. 1 is the total schematic diagram of the technological process of production of multi-functional quincunx bentonite mine tailing lightweight through hole haydite, and Fig. 2 is crowded
Pressure prilling schematic flow sheet, Fig. 3 is drying and roasting technique schematic flow sheet, and Fig. 4 is that insulation and sieving technology flow process are shown
It is intended to, Fig. 5 is the schematic diagram of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, and Fig. 6 is multi-functional quincunx
To profile, Fig. 7 is multi-functional quincunx bentonite mine tailing lightweight through hole to the A-A of bentonite mine tailing lightweight through hole semi-finished product
The product schematic diagram of haydite, Fig. 8 is the product schematic diagram of Multi-functional circular cylindricality bentonite mine tailing lightweight through hole haydite, and Fig. 9 is many
The product schematic diagram of function spheroidal bentonite mine tailing lightweight through hole haydite.
As shown in the figure：1 is the dispensing of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, and 2 is that stirring is mixed
Conjunction machine, 3 is the mixture of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, and 4 is belt feeder, and 5 is feed bin, 6
It is valve, 7 is screw extruder pelletizer, and 8 is the template of screw extruder pelletizer, and 9 is for producing multi-functional quincunx swelling
The core rod of native mine tailing lightweight through hole semi-finished product, 10 is multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product,
11 is belt feeder, and 12 is swinging drying oven, and 13 is swinging drying oven drying temperature, and 14 is roaster tail gas thermal current, 15
It is roaster tail gas temperature, 16 is the discharging opening of swinging drying oven, and 17 is the multi-functional quincunx bentonite tail after drying
Ore deposit lightweight through hole semi-finished product, 18 is swinging roaster, and 19 is the temperature of combustion chamber, and 20 is the high temperature hot gas stream of combustion chamber
Pipeline, 21 is the discharging opening of swinging roaster, and 22 is the multi-functional quincunx bentonite mine tailing lightweight through hole haydite after roasting
Semi-finished product, 23 is U-shaped conveying worm, and 24 is stainless steel cylinder storehouse, and 25 is stainless steel cylinder storehouse valve, and 26 is many after insulation
Bentonite mine tailing lightweight through hole semi-finished product that function is quincunx, 27 is belt feeder, and 28 is powder discharge line, and 29 is broken
Haydite discharge line, 30 is cylinder vibratory sieve, and 31 is screen cloth, 32 be multi-functional quincunx bentonite mine tailing lightweight through hole haydite into
Product, 33 is high temperature hot gas stream flow direction, and 34 is swinging drying oven exhaust temperature, and 35 is drying oven exhaust pipe, and 36 is many
The external diameter of bentonite mine tailing lightweight through hole semi-finished product that function is quincunx, 37 is that multi-functional quincunx bentonite mine tailing lightweight is led to
The through hole internal diameter at hole semi-finished product center, 38 is the through hole of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product
Quantity, 39 is the length of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product.
Specific embodiment
With reference to embodiment, the invention will be further described：
1st, the production method of multi-functional quincunx bentonite mine tailing lightweight through hole haydite：
(1) the dispensing 1 of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product is input into the stirring mixing for having operated
In machine 2, stirring is mixed into the mixture 3 of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, through belt feeder 4
It is transported to standby in the feed bin 5 on the top of screw extruder pelletizer 7；
(2) will be used to produce the core rod 9 of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, be placed on screw rod and squeeze
In the template 8 of pressure comminutor 7, open the valve 6 of feed bin 5, will multi-functional quincunx bentonite mine tailing lightweight through hole haydite partly into
The mixture 3 of product is transported in screw extruder pelletizer 7, and extruder grain is multi-functional quincunx bentonite mine tailing lightweight through hole pottery
Grain semi-finished product 10；The external diameter 36 of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product is controlled at 8 millimeters, length 39
At 8 millimeters, the internal diameter 37 of through hole 38 at multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product center is controlled for control
1.5 millimeters of ￠, the quantity of through hole 38 is controlled at 1；
(3), by multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product 10, it is transported to swinging through belt feeder 11 and dries
Dried in dry stove 12, the drying temperature 13 of swinging drying oven 12 is controlled at 150～250 DEG C, and drying time control is little 2
When, the exhaust temperature 34 of swinging drying oven 12 is controlled at 50～80 DEG C；
By drying after multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product 16, from swinging drying oven 12
Discharging opening 17 is transported to roasting in swinging roaster 18, and the temperature 19 of combustion chamber is controlled at 920～940 DEG C, roasting time control
At 2 hours, roaster tail gas temperature 15 was controlled at 150～250 DEG C system,；
(5) multi-functional quincunx the going out from swinging roaster 18 of bentonite mine tailing lightweight through hole semi-finished product 22 after roasting
Material mouth 21 is discharged, by roasting after multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product 22, through U-shaped spiral transferring
Send in the input stainless steel cylinder of machine 23 storehouse 24 and be incubated, temperature retention time was controlled at 48 hours；
(6) the valve 25 in stainless steel cylinder storehouse 24 is opened, by the multi-functional quincunx bentonite mine tailing lightweight cooled down after insulation
Through hole semi-finished product 26 is transported in cylinder vibratory sieve 30 through belt feeder 27, is sieved by screen cloth 31, close after screening
Envelope is packaged as multi-functional quincunx bentonite mine tailing lightweight through hole haydite finished product 32, and the powder after screening is from powder discharge line 28
Discharge, broken haydite is discharged from broken haydite discharge line 29；
(7) the technique of drying and roasting adopts reflux type, is the high temperature hot gas stream 33 for ejecting burner, by combustion chamber
The high temperature hot gas flow tube road 20 at center enters swinging roaster 18, and the tail gas thermal current 14 of swinging roaster 18 enters swinging
Drying oven 12, the tail gas of swinging drying oven 12 is discharged by drying oven exhaust pipe 35；Multi-functional quincunx bentonite mine tailing is light
Matter through hole semi-finished product 10, is introduced into swinging drying oven 12 and is dried, and enters back into roasting in swinging roaster 18,
Multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product 22 after roasting, from the discharging opening 21 of swinging roaster 18
Discharge, multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product 10 enters swinging drying oven 12 and swinging roasting
It is contrary with the flow direction of high temperature hot gas stream 33 and roaster tail gas thermal current 14 after stove 18.
2nd, the dispensing of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product is by weight percentage by following group
It is grouped into：Bentonite mine tailing 30%, high viscous Concave-convex clay rod 12%, zeolite 10%, active white clay waste slag 6%, active oxidation
It is aluminium 2%, nano zine oxide 2%, precipitated calcium carbonate 2%, light magnesium oxide 2%, cenosphere 2%, expanded perlite 1%, swollen
Swollen vermiculite 1%, lauryl sodium sulfate 2% and water 28%.
3rd, multi-functional quincunx bentonite mine tailing lightweight through hole haydite average bulk density is surveyed for 700kg/m3, water absorption rate
For 88%.
Claims (3)
1. a kind of production method of multi-functional quincunx bentonite mine tailing lightweight through hole haydite, it is characterised in that (1) will be multi-functional
In the stirring mixer that the dispensing input of quincunx bentonite mine tailing lightweight through hole semi-finished product has operated, stirring is mixed into
The mixture of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, through belt feeder screw extruding granulation is transported to
It is standby in the feed bin on machine top；
(2) will be used to produce the core rod of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, be placed on screw extruding
In the template of comminutor, the valve of feed bin is opened, by the mixed of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product
Compound is transported in screw extruder pelletizer, extruder grain be multi-functional quincunx bentonite mine tailing lightweight through hole haydite half into
Product；At 5～60 millimeters, length is controlled 5 for the external diameter control of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product
～60 millimeters, the through hole internal diameter control at multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product center is in the millis of ￠ 1～5
Rice, number of openings is controlled at 1～6；
(3), by multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, swinging drying oven is transported to through belt feeder
In dried, the control of swinging drying oven drying temperature at 150～250 DEG C, drying time control at 1～4 hour, swinging
Drying oven exhaust temperature is controlled at 50～100 DEG C；
By drying after multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, from the discharging of swinging drying oven
Mouth is transported to swinging roasting kiln roasting, and the temperature control of combustion chamber is at 900～950 DEG C, and roasting time control is little 1～4
When, roaster tail gas temperature control is at 150～250 DEG C；
(5) discharging opening of the multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product after roasting from swinging roaster
Discharge, by roasting after multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product, through U-shaped conveying worm input
It is incubated in stainless steel cylinder storehouse, temperature retention time was controlled at 24～72 hours；
(6) the valve in stainless steel cylinder storehouse is opened, by the multi-functional quincunx bentonite mine tailing lightweight through hole cooled down after insulation
Semi-finished product is transported in cylinder vibratory sieve through belt feeder, is sieved by screen cloth, is packed after screening as many work(
Can quincunx bentonite mine tailing lightweight through hole haydite finished product, the powder after screening discharges from powder discharge line, broken haydite
Discharge from broken haydite discharge line；
(7) the technique of drying and roasting adopts reflux type, is the high temperature hot gas stream for ejecting burner, by combustion chamber
The high temperature hot gas flow tube road of the heart enters swinging roaster, and swinging roaster tail gas thermal current enters swinging drying oven, returns
Rotatable drying furnace exhaust gas are discharged by drying oven exhaust pipe；Multi-functional quincunx bentonite mine tailing lightweight through hole haydite half into
Product, are introduced into swinging drying oven and are dried, and enter back into swinging roasting kiln roasting, multi-functional quincunx after roasting
Bentonite mine tailing lightweight through hole semi-finished product, discharges, multi-functional quincunx bentonite tail from the discharging opening of swinging roaster
Ore deposit lightweight through hole semi-finished product is entered after swinging drying oven and swinging roaster, with high temperature hot gas stream and roaster tail gas
The flow direction of thermal current is contrary.
2. the production method of multi-functional quincunx bentonite mine tailing lightweight through hole haydite according to claim 1, its feature
It is that the dispensing of multi-functional quincunx bentonite mine tailing lightweight through hole semi-finished product is by weight percentage by following component group
Into：Bentonite mine tailing 10～35%, high viscous Concave-convex clay rod 5～25%, zeolite 5～20%, active white clay waste slag 2～
10%th, activated alumina 1～5%, nano zine oxide 1～5%, light magnesium oxide 1～5%, precipitated calcium carbonate 1～5%, hollow
Microballon 1～5%, expanded perlite 0.5～5%, expanded vermiculite 0.5～5%, lauryl sodium sulfate 0.1～5% and water 5～
40%.
3. the production method of multi-functional quincunx bentonite mine tailing lightweight through hole haydite according to claim 1, its feature
It is, grain fineness≤0.074 millimeter of bentonite mine tailing, grain fineness≤0.074 millimeter of high viscous Concave-convex clay rod to boil
Grain fineness≤0.074 millimeter of stone, grain fineness≤0.149 millimeter of active white clay waste slag, the particle of activated alumina is thin
≤ 0.074 millimeter of degree, grain fineness≤0.074 millimeter of light magnesium oxide, grain fineness≤0.074 milli of precipitated calcium carbonate
Rice, cenosphere grain fineness≤0.149 millimeter, grain fineness≤0.074 millimeter of expanded perlite, the particle of expanded vermiculite
Fineness≤0.074 millimeter.
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| CN201610853995.5A CN106631091A (en) | 2016-09-27 | 2016-09-27 | Production method of multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108191398A (en) * | 2018-02-02 | 2018-06-22 | 湖州师范学院 | Bamboo charcoal bentonite tailing composite ceramic material and preparation method thereof |
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Application publication date: 20170510 |
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