CN107915231A - A kind of method and quartz calcining furnace that glass sand is prepared using vein quartz environmental protection - Google Patents
A kind of method and quartz calcining furnace that glass sand is prepared using vein quartz environmental protection Download PDFInfo
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- CN107915231A CN107915231A CN201711176748.7A CN201711176748A CN107915231A CN 107915231 A CN107915231 A CN 107915231A CN 201711176748 A CN201711176748 A CN 201711176748A CN 107915231 A CN107915231 A CN 107915231A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/025—Froth-flotation processes adapted for the flotation of fines
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0033—Linings or walls comprising heat shields, e.g. heat shieldsd
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
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- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a kind of method and quartz calcining furnace that glass sand is prepared using vein quartz environmental protection, including selecting SiO2 content >=99.6%, the vein quartz ore for being visible by naked eyes impurity is raw material, cleaned, crushed, being calcined, being cleaned, wet type is milled, be dehydrated, pickling, washing, flotation, dehydration, secondary clacining, is packed after magnetic separation, up to the glass sand of SiO2 ≮ 99.99%；The present invention uses secondary clacining method in preparation process, and removal of impurities is more thorough, and mills with the use of wet type, ensure that the granularity and quality of finished product quartz sand, while coordinates the quartz calcining furnace of inventor's independent research, makes the yield higher of quartz sand；Pickling is carried out by the acid solution of concentrated hydrochloric acid and concentrated nitric acid compounding in acid cleaning process, avoids the harm to environment using hydrofluoric acid；The bulk flotation agent of autogamy is used in floatation process, avoids harm of the fluorine floatation to environment, and flotation effect is more preferable；Quality is more stable compared with similar products for product of the present invention, quality higher, and economic benefit is more notable.
Description
Technical field
The present invention relates to the preparation method of glass sand, especially one kind to prepare glass sand using vein quartz environmental protection
Method and quartz calcining furnace.
Background technology
With the development of science and technology, the update for being particularly modern society's consumer electronics is progressively being accelerated, electric light
Source, photoelectric communication, extensive and ultra-large integrated circuit especially photovoltaic industry fast development, high-quality high purity quartz
The demand of sand sharply increases, and requires SiO2 contents to be greater than 99.99% even more high.It is only natural special in traditional handicraft
Level crystal material can reach above-mentioned requirements, and the Jiangsu Province Donghai County of China's last century the eighties once abounded with superfine crystal material, still
Now far can not meet demand, and high-quality crystal material is also fewer and fewer in the world, in this case
A kind of glass sand with common silica production high-quality is only found, growing high-quality high purity quartz could be solved
The demand of sand.Mainly rested in American-European countries's hand with the technology of common silica production glass sand at present, particularly the U.S.,
In world-leading status.Although China possesses a large amount of good quartz raw ores, but since production technology falls behind, production capacity
Low, quality is unstable, and good quartz raw ore can only inexpensively be exported to foreign countries, then from external high price import high purity quartz
Sand, this to China opto-electronics development it is very unfavorable.
The method of production glass sand mainly has following two at present：
(1) → pickling → calcining → grinding → screening → dehydration → pickling → flotation → dehydration → baking is selected → crushed to raw ore
Dry → magnetic separation → packaging；
(2) → pickling → grinding → screening → dehydration → pickling → flotation → dehydration → calcining → magnetic is selected → crushed to raw ore
Choosing → packaging.
Both the above method there are the problem of be：(1) acid solution used in acid cleaning process is mainly the mixed of hydrochloric acid and hydrofluoric acid
Acid solution or simple hydrofluoric acid are closed, high concentration fluorine ion waste water, the harm to environment and the mankind can be produced in acid cleaning process
Greatly；(2) protection gas is done using chlorine in calcination process, high cost, calcining heat is high, and time-consuming, and energy consumption is very big, equally
In the presence of to the disagreeableness problem of environment.Therefore, a kind of environmental protection production glass sand of research and development, stable quality, and it is environmentally friendly
Glass sand production technology, to China's opto-electronics development tool has very great significance.
The content of the invention
Present invention aim to solve domestic and international electronics industry at present to increase severely to glass sand demand, and China gives birth to
The technique for producing glass sand falls behind, and environmental pollution is extremely serious and quality is unstable, limits the development of China's opto-electronics
The problem of, there is provided a kind of method and quartz calcining furnace that glass sand is prepared using vein quartz environmental protection.
A kind of method that glass sand is prepared using vein quartz environmental protection of the present invention, is comprised the following steps：
(1) ore dressing：Artificial separation first is carried out to natural vein quartz ore, rejects naked eyes visible foreign and color and overall ore deposit
The stone that stone differs greatly, the ore for selecting SiO2 content >=99.6% is raw material, is cleaned, crushed, and cleaning is to without obvious
The quartz block that length is 25~40mm is chosen after impurity to dry；
(2) calcine：Quartz calcining furnace is first preheated to 800 DEG C, quartz block is then put into quartz calcining furnace
It is interior, continue to calcine stove heat to quartz, start timing when in-furnace temperature rises to 700 DEG C, 2.5 are calcined at 700~850 DEG C
~3.5 it is small when, when insulation 1.5~3 is small at 750 DEG C, then the quartz calcined is released out of stove, air-cooled or natural cooling
To room temperature；
(3) clean：The quartz block that upper step has been calcined is cleaned with tap water, after the stone for rejecting naked eyes visible foreign
Dry；
(4) grind：The cleaned quartz block of upper step is put into wet-type grinding mill and is milled, the quartz sand milled out exists
It is classified in magnetic separator after the magnetic field intensity magnetic separation of 3000~5000GS, the quartz sand of 60~200 mesh is collected in plastics
In dislodger；
(5) it is dehydrated：The quartz sand that upper step is collected, which is sent into centrifuge, to be dehydrated to the water content ＜ 7% of quartz sand；
(6) pickling：Dewatered quartz sand is added in the pickling reaction kettle of belt stirrer, quartz sand addition is pickling
The 1/4~1/3 of reaction kettle volume, adds mix acid liquor material cumulative volume into pickling reaction kettle and accounts for the 1/2 of pickling reaction kettle
~2/3, by pickling reaction kettle heat-conducting oil heating to 80~100 DEG C, when soak cycles pickling 6~10 is small under agitation, pickling
During, mix acid liquor discharges from reaction kettle upper feeding, lower part, remains that material cumulative volume is constant in pickling reaction kettle,
Every 30~50 minutes mixing directions for changing a blender；The mix acid liquor is the concentrated hydrochloric acid and 98% dense nitre with 36%
Acid is formulated for 8: 1~15: 1 ratio by volume；
(7) wash：After pickling, the acid solution that is allowed to dry in pickling reaction kettle, adds deionized water and cleans 4~6 times, until
The pH of material is neutrality in pickling reaction kettle after addition deionized water, and quartz sand is released out of kettle；
(8) flotation：Quartz sand after washing is added in flotation device, 14~15,000,000 ultra-pure waters is added and adjusts in flotation device
Pulp density starts flotation in the steps below after being 30%~40%：1. hydrochloric acid or ammonium hydroxide adjust the pH of ore pulp for 3.0~
6.0, bulk flotation agent A is added, stirring adds black powder and stirs 5 minutes after five minutes, flotation 20 minutes, with ultrapure after flotation is complete
Quartz sand in water cleaning flotation device one time；2. the pH that hydrochloric acid adjusts ore pulp is 2.0~3.0, bulk flotation agent B is added, is stirred
Mix the octadecylamine HCI solution for adding 0.05~0.1mol/L after five minutes, flotation 20 minutes；Repeat it is above-mentioned 1.~flotation 2.
Process 3~5 times, then the good quartz sand of flotation is cleaned after being neutrality to pH value discharge with 14~15,000,000 ultra-pure water；
The bulk flotation agent A is made of per 1000ml the component of following dosage：Neopelex：20~30g,
Mass fraction is 10% sulfuric acid solution：200~300ml, terpinol：25~50g, kerosene：15~40g, isobutanol：10~
25g, 80~100 DEG C of water：Surplus；During preparation, stirred evenly after above-mentioned material is mixed；In use, per m3 ore pulp dosages
For 100~200ml；The bulk flotation agent B is made of per 1000ml the component of following dosage：The ten of 0.08~0.12mol/L
Diamine hydrochloride solution：200~300ml, terpinol：25~75g, kerosene：15~40g, isobutanol：10~25g, 80~100
DEG C water：Surplus；During preparation, stirred and evenly mixed after above-mentioned material is mixed；In use, per m3 ore pulps dosages for 100~
200ml；The black powder is phenol black powder, in use, being 0~5g per m3 ore pulps dosage；The octadecylamine of the 0.05~0.1mol/L
HCI solution is 100~200ml per m3 ore pulps dosage；
(9) it is dehydrated：The good quartz sand of upper step flotation is put into centrifuge and is dehydrated to quartz sand water content ＜ 7%；
(10) secondary clacining：Dewatered quartz sand feeding is made in the quartz sand calcining furnace of liner of glass material, will
For the temperature control of calcining furnace at 1100~1200 DEG C, quartz sand is put into the cooling furnace of glass material by calcining after 45~90 minutes
It is interior, released after cooled to room temperature；
(11) magnetic separation：Quartz sand after calcining is sent into high gradient dry-type magnetic extractor, in the magnetic of 18000~25000GS
The glass sand packaging and storage magneticly elected under field intensity, is detected, wherein SiO2 ≮ 99.99% through ICP.
The dodecylamine hydrochloride solution, is first to add 36% concentrated hydrochloric acid in 50 DEG C of hot water to be diluted to HCl mass
Fraction is 15%~25%, then adds lauryl amine into hot hydrochloric acid, be configured to the molar concentration of lauryl amine for 0.08~
The dodecylamine hydrochloride solution of 0.12mol/L, to obtain the final product.
The octadecylamine HCI solution, is first to add 36% concentrated hydrochloric acid in 50 DEG C of hot water to be diluted to HCl mass
Fraction is 10%, then adds octadecylamine into hot hydrochloric acid, and the molar concentration for being configured to octadecylamine is 0.05~0.1mol/L's
Octadecylamine HCI solution, to obtain the final product.
A kind of quartz calcining furnace prepared using vein quartz environmental protection used in the method for glass sand of the present invention, is had
The furnace body being placed in support base, furnace body are made of furnace wall and the sealing of upper plate and lower plate, the furnace interior suit
There is stove in one, interior stove has the rectangular parallelepiped structure of upper and lower opening, and the upper plate of the furnace body and the middle part of lower plate open up respectively
There are inlet port and outlet port, inlet port and outlet port connection corresponding with the upper and lower fire door of interior stove respectively, one is provided with discharge port
Fire door；The left and right sides of the interior stove are evenly equipped with heat-conducting plate, and a vertical setting of types silicon-carbon is respectively provided with close to left and right heat-conducting plate outer surface
Rod, the Elema are placed in being longitudinally arranged in furnace body, and the both ends of Elema are respectively and fixedly installed on furnace wall, in the furnace body
All Elemas are formed with the electric cabinet of control and connected, wherein being connected between two adjacent Elemas with bronze medal, are formed in parallel
Circuit.
The furnace body is rectangular parallelepiped structure, and upper plate and the lower plate of furnace body are steel structure, and the feed inlet of furnace body is small
In discharge port.
The furnace wall is built by some refractory brick, and the outer surface of furnace wall is pasted with one layer of heat preservation cotton.
The heat-conducting plate is high-temperature resistant silicon carbide material.
The front and rear sides of the furnace body are respectively provided with a thermocouple, and two thermocouples extend into furnace interior, and with it is interior
The heat-conducting plate outer wall of stove is in contact, and interlaced arrangement, the thermocouple are formed and connected two thermocouples with the electric cabinet of control up and down.
The fire door is made of the stripper of two pieces of movable compositions, and being welded respectively on an end face of every piece of stripper has
One interlocking lever, the interlocking lever are rotatably installed in support base, one end assembly wrench of interlocking lever.
The method of the present invention has the following advantages compared with traditional handicraft：
1. using secondary clacining method, clean more thorough, calcination efficiency higher：
(1) calcining is will to be crushed to the quartz block that length is 25~40mm sizes to be in temperature to the present invention for the first time
700~850 DEG C of calcinings, quartz is burnt to half-feeding, is so done and can not only be removed the impurity on quartz surface by calcining,
Quartz can be also set to keep certain hardness at the same time, the quartz sand size so ground in subsequent wet is milled can be more equal
It is even, so that ensure that the mass output rate of quartz sand, and the granularity of finished product quartz sand is more preferable after subsequent treatment；
(2) temperature of second of calcining of the present invention is 1100~1200 DEG C, and the purpose of secondary clacining mainly makes quartz sand
Blow, and the pore of quartz sand surface is fully opened, its internal impurity is exposed, in this way, subsequently through High-gradient Magnetic
Be more advantageous to magneticly electing containing the non-quartz sand class material such as mica of weak magnetic impurity, feldspar etc. when selecting machine, can thus make as potassium,
Content of the impurity elements such as calcium, sodium, magnesium in glass sand further reduces；Calcine and combine wet by above-mentioned two step
Formula is milled, and feeling is better for the finished product quartz sand made, and quality is more excellent；
(3) used calcining furnace is forged for the quartz of the present inventor's independent research during first time calcining quartz stone of the invention
Stove is burnt, it is most essential difference lies in continuous production process compared with existing chamber of a kitchen range stove and electric furnace, calcines every time
Stone only release the 35% of whole stove quartz, remaining is stayed in stove, and raw quartz is then added into stove, using heating
Quartz calcine raw quartz, so both avoided the waste of heat, also improve calcination efficiency, while greatly drop
The low labor intensity of worker.
2. use pickle different：The present invention is to be configured to mix acid liquor with 36% concentrated hydrochloric acid and 98% concentrated nitric acid
To substitute the hydrofluoric acid that must be used in traditional handicraft, some metal oxides and part silicate mineral for being dissolved in acid are removed,
Such as：Some of quartz sand surface be introduced into oxidation of impurities iron in silica valence bond structure, sodium oxide molybdena, potassium oxide, calcium oxide,
Magnesia, aluminium oxide etc., then recycle acid solution, for doing the quartz sand of slightly lower purity, can so reduce to greatest extent
The waste of acid solution and the harm to environment；It is well known that destruction of the hydrofluoric acid to the mankind and environment is very big, and administer very
It is difficult；And just making the purity of product more than 99.99% without hydrofluoric acid is used in the present invention, this reality is quartz sand production row
One much progress of industry.
3. flotation agent used in is different：Material kind in the present invention in bulk flotation agent A and bulk flotation agent B used
Class and proportioning are that the present inventor finds out after several years practical experience in the actual production process, with floating in the present invention
Select agent to carry out flotation, the impurity such as mica in quartz sand, feldspar can be removed to greatest extent, ensure that product is follow-up
Quality；And be generally to use fluorine-containing flotation agent during traditional quartz sand flotation, it is very big to environmental hazard.
4. the raw material used in the present invention is all the commercially available raw material of industry, produced easy to purchase and organize, in whole production process
In without using the chemicals that is harmful to human body and environment, be truly realized sustainable development；Preparation process of the present invention is simple,
Used equipment is all standard device, can be reduced investment outlay, and saves the energy；Quality is more compared with similar products for product of the present invention
Stablize, quality higher, has great Social benefit and economic benefit.
Brief description of the drawings
Fig. 1 is the agent structure schematic diagram of the present invention；
Fig. 2 is the diagrammatic cross-section of furnace body of the present invention；
Fig. 3 is the structure diagram of fire door.
In figure：1-support base, 2-furnace body, 3-furnace wall, 4-upper plate, 5-lower plate, 6-interior stove, 7-heat conduction
Plate, 8-Elema, 9-feed inlet, 10-discharge port, 11-fire door, 12-heat-preservation cotton, 13-thermocouple, 14-stripper,
15-interlocking lever, 16-spanner, the electric cabinet of 17-control, 18-receiving hopper, 19-feeding skid, 20-material storage container.
Embodiment
It is raw material that the present invention, which selects the produced vein quartz ore in Hubei Qichun County, by this hair of the consummate quartz sand station-service in Xishui County
Bright method is produced, the embodiment that detailed content is seen below, and calcining quartz stone is to adopt in embodiment 1,2,3 in following embodiments
It is come calcining quartz stone, in embodiment 5 with heretofore described quartz calcining furnace, in embodiment 4 using traditional stove thorax
It is come calcining quartz stone using traditional electric furnace, but the invention is not limited in any way for following embodiments.
Embodiment 1
(1) ore dressing：Artificial separation first is carried out to natural vein quartz ore, rejects naked eyes visible foreign and color and overall ore deposit
The stone that stone differs greatly, the ore for selecting SiO2 content >=99.6% is raw material, is cleaned, crushed, and cleaning is to without obvious
The quartz block that length is 25~40mm is chosen after impurity to dry；
(2) calcine：Quartz calcining furnace is first preheated to 800 DEG C, quartz block is then put into quartz calcining furnace
It is interior, continue to calcine stove heat to quartz, start timing when in-furnace temperature rises to 700 DEG C, it is small that 3 are calcined at 700~850 DEG C
When, when insulation 2 is small at 750 DEG C, then the quartz calcined is released out of stove, air-cooled or cooled to room temperature；
(3) clean：The quartz block that upper step has been calcined is cleaned with tap water, rejects the quartz of naked eyes visible foreign
After dry；
(4) grind：The cleaned quartz block of upper step is put into wet-type grinding mill and is milled, the quartz sand milled out exists
It is classified in magnetic separator after the magnetic field intensity magnetic separation of 5000GS, the quartz sand of 60~200 mesh is collected in plastics dislodger
It is interior；
(5) it is dehydrated：It is aqueous to quartz sand that the quartz sand that upper step is collected is sent into dehydration in the centrifuge of stainless steel
Measure ＜ 7%；
(6) pickling：Dewatered quartz sand addition the acidproof of belt stirrer (is referred to：Resistance to concentrated hydrochloric acid, concentrated nitric acid and other
Compounding acid solution), heatproof (refers to：, can long-time service at 80-100 DEG C on the premise of acidproof) pickling reaction kettle in,
Quartz sand addition is the 1/3 of pickling reaction kettle volume, adds mix acid liquor material cumulative volume into pickling reaction kettle and accounts for acid
The 2/3 of reaction kettle is washed, by pickling reaction kettle heat-conducting oil heating to 100 DEG C, when soak cycles pickling 8 is small under agitation, pickling
During, mix acid liquor discharges from reaction kettle upper feeding, lower part, remains that material cumulative volume is constant in pickling reaction kettle,
The every 30 minutes mixing directions for changing a blender；The mix acid liquor be with 36% concentrated hydrochloric acid and 98% concentrated nitric acid by
The ratio that volume ratio is 10: 1 is formulated；
(7) wash：After pickling, the acid solution in pickling reaction kettle is filtered dry, adds deionized water cleaning 4~6 times, often
During secondary cleaning, deionized water is full of pickling kettle, stirring 5~after ten minutes, deionized water is allowed to dry, then cleaned next time,
Until the pH for adding material in pickling reaction kettle after deionized water is neutrality, quartz sand is released out of kettle；
(8) flotation：Quartz sand after washing is added in flotation device, 14~15,000,000 ultra-pure waters is added and adjusts in flotation device
Pulp density starts flotation in the steps below after being 30%：1. hydrochloric acid or ammonium hydroxide adjust the pH to 5.0 of ore pulp, mixing is added
Flotation agent A, stirring add black powder and stir 5 minutes after five minutes, and flotation 20 minutes, flotation device is cleaned after flotation is complete with ultra-pure water
Interior quartz sand one time；2. adjusts the pH to 3.0 of ore pulp with hydrochloric acid, bulk flotation agent B is added, stirring adds after five minutes
The octadecylamine HCI solution of 0.07mol/L, flotation 20 minutes；Repeat it is above-mentioned 1.~floatation process 2. 4 times, then by flotation
Good quartz sand is cleaned with 14~15,000,000 ultra-pure water be neutrality to pH value after discharge；
The bulk flotation agent A is made of per 1000ml the component of following dosage：Neopelex：25g, quality
Fraction is 10% sulfuric acid solution：250ml, terpinol：40g, kerosene：30g, isobutanol：18g, 90 DEG C of water：Surplus；During preparation,
Stirred evenly after above-mentioned material is mixed；In use, it is 150ml per m3 ore pulps dosage；The bulk flotation agent B is every
1000ml is made of the component of following dosage：The dodecylamine hydrochloride solution of 0.1mol/L：250ml, terpinol：50g, kerosene：
25g, isobutanol：18g, 92 DEG C of water：Surplus；During preparation, stirred and evenly mixed after above-mentioned material is mixed；In use, per m3 ore deposits
Slurry dosage is 180ml；The black powder is cresols, in use, being 5g per m3 ore pulps dosage；The octadecylamine salt of the 0.07mol/L
Acid salt solution is 150ml per m3 ore pulps dosage；
(9) it is dehydrated：It is aqueous to quartz sand that the good quartz sand of upper step flotation is put into dehydration in the centrifuge of stainless steel
Measure ＜ 7%；
(10) secondary clacining：Dewatered quartz sand feeding is made in the quartz sand calcining furnace of liner of glass material, will
The temperature control of calcining furnace is at 1150 DEG C, and quartz sand is put into the cooling furnace of glass material by calcining after sixty minutes, natural cooling
Released after to room temperature；
(11) magnetic separation：Quartz sand after calcining is sent into high gradient dry-type magnetic extractor, under the magnetic field intensity of 25000GS
The glass sand packaging and storage magneticly elected.
Glass sand made from the present embodiment is detected through national building materials test center ICP, wherein every element refers to
Mark is as follows：(unit：ppm)
Testing result：SiO2 ≮ 99.99%；
Note：The total amount % of SiO2 (%)=100%- oxide impurities.
Dodecylamine hydrochloride solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid solution that 1000ml mass fractions are 15%, 18.5g lauryl amines are then added into hot hydrochloric acid, are configured to lauryl amine
Molar concentration be 0.1mol/L dodecylamine hydrochloride solution, to obtain the final product.
Octadecylamine HCI solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid solution that 1000ml mass fractions are 10%, 18.9g octadecylamines are then added into hot hydrochloric acid, are configured to octadecylamine
Molar concentration be 0.07mol/L octadecylamine HCI solution, to obtain the final product.
Embodiment 2
(1) ore dressing：Artificial separation first is carried out to natural vein quartz ore, rejects naked eyes visible foreign and color and overall ore deposit
The stone that stone differs greatly, the ore for selecting SiO2 content >=99.6% is raw material, is cleaned, crushed, and cleaning is to without obvious
The quartz block that length is 25~40mm is chosen after impurity to dry；
(2) calcine：Quartz calcining furnace is first preheated to 800 DEG C, quartz block is then put into quartz calcining furnace
It is interior, continue to calcine stove heat to quartz, start timing when in-furnace temperature rises to 700 DEG C, 2.5 are calcined at 700~850 DEG C
Hour, when insulation 3 is small at 750 DEG C, then the quartz calcined is released out of stove, air-cooled or cooled to room temperature；
(3) clean：The quartz block that upper step has been calcined is cleaned with tap water, after the stone for rejecting naked eyes visible foreign
Dry；
(4) grind：The cleaned quartz block of upper step is put into wet-type grinding mill and is milled, the quartz sand milled out exists
It is classified in magnetic separator after the magnetic field intensity magnetic separation of 3000GS, the quartz sand of 60~200 mesh is collected in plastics dislodger
It is interior；
(5) it is dehydrated：The quartz sand that upper step is collected, which is sent into centrifuge, to be dehydrated to the water content ＜ 7% of quartz sand；
(6) pickling：Dewatered quartz sand is added in the pickling reaction kettle of belt stirrer, quartz sand addition is pickling
The 1/4 of reaction kettle volume, adds mix acid liquor material cumulative volume into pickling reaction kettle and accounts for the 1/2 of pickling reaction kettle, by acid
Reaction kettle heat-conducting oil heating is washed to 80 DEG C, when soak cycles pickling 10 is small under agitation, in acid cleaning process, mix acid liquor is from anti-
Kettle upper feeding is answered, lower part discharging, remains that material cumulative volume is constant in pickling reaction kettle, change in every 50 minutes is once stirred
The mixing direction of device；The mix acid liquor is matched somebody with somebody by volume for 8: 1 ratio with 36% concentrated hydrochloric acid and 98% concentrated nitric acid
System forms；
(7) wash：After pickling, the acid solution that is allowed to dry in pickling reaction kettle, adds deionized water and cleans 4~6 times, every time
During cleaning, deionized water is full of pickling kettle, stirring 5~after ten minutes, deionized water is allowed to dry, then cleaned next time；Directly
The pH of material is neutrality in pickling reaction kettle after to addition deionized water, and quartz sand is released out of kettle；
(8) flotation：Quartz sand after washing is added in flotation device, 14~15,000,000 ultra-pure waters is added and adjusts in flotation device
Pulp density starts flotation in the steps below after being 35%：1. hydrochloric acid or ammonium hydroxide adjust the pH to 3.0 of ore pulp, mixing is added
Flotation agent A, stirring add black powder and stir 5 minutes after five minutes, and flotation 20 minutes is clear with 14~15,000,000 ultra-pure waters after flotation is complete
Wash the quartz sand one time in flotation device；2. adjusts the pH to 2.0 of ore pulp with hydrochloric acid, bulk flotation agent B is added, stirring is after five minutes
Add the octadecylamine HCI solution of 0.05mol/L, flotation 20 minutes；Repeat it is above-mentioned 1.~floatation process 2. 5 times, then will
The good quartz sand of flotation is cleaned with 14~15,000,000 ultra-pure water be neutrality to pH value after discharge；
The bulk flotation agent A is made of per 1000ml the component of following dosage：Neopelex：20g, quality
Fraction is 10% sulfuric acid solution：300ml, terpinol：50g, kerosene：15g, isobutanol：25g, 100 DEG C of water：Surplus；Prepare
When, stirred evenly after above-mentioned material is mixed；In use, it is 100ml per m3 ore pulps dosage；The bulk flotation agent B is every
1000ml is made of the component of following dosage：The dodecylamine hydrochloride solution of 0.12mol/L：200ml, terpinol：25g, kerosene：
40g, isobutanol：10g, 80 DEG C of water：Surplus；During preparation, stirred and evenly mixed after above-mentioned material is mixed；In use, per m3 ore deposits
Slurry dosage is 200ml；The black powder is xylenol, in use, being 4g per m3 ore pulps dosage；The octadecylamine of the 0.05mol/L
HCI solution is 200ml per m3 ore pulps dosage；
(9) it is dehydrated：The good quartz sand of upper step flotation is put into centrifuge and is dehydrated to quartz sand water content ＜ 7%；
(10) secondary clacining：Dewatered quartz sand feeding is made in the quartz sand calcining furnace of liner of glass material, will
The temperature control of calcining furnace is at 1100 DEG C, and quartz sand is put into the cooling furnace of glass material by calcining after 90 minutes, natural cooling
Released after to room temperature；
(11) magnetic separation：Quartz sand after calcining is sent into high gradient dry-type magnetic extractor, under the magnetic field intensity of 25000GS
The glass sand packaging and storage magneticly elected.
Glass sand made from the present embodiment is detected through national building materials test center ICP, wherein every element refers to
Mark is as follows：(unit：ppm)
Testing result：SiO2 ≮ 99.99%；
Note：The total amount % of SiO2 (%)=100%- oxide impurities.
Dodecylamine hydrochloride solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid solution that 1000ml mass fractions are 25%, 22.3g lauryl amines are then added into hot hydrochloric acid, are configured to lauryl amine
Molar concentration be 0.12mol/L dodecylamine hydrochloride solution, to obtain the final product.
Octadecylamine HCI solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid solution that 1000ml mass fractions are 10%, 13.5g octadecylamines are then added into hot hydrochloric acid, are configured to octadecylamine
Molar concentration be 0.05mol/L octadecylamine HCI solution, to obtain the final product.
Embodiment 3
(1) ore dressing：Artificial separation first is carried out to natural vein quartz ore, rejects naked eyes visible foreign and color and overall ore deposit
The stone that stone differs greatly, the ore for selecting SiO2 content >=99.6% is raw material, is cleaned, crushed, and cleaning is to without obvious
The quartz block that length is 25~40mm is chosen after impurity to dry；
(2) calcine：Quartz calcining furnace is first preheated to 800 DEG C, quartz block is then put into quartz calcining furnace
It is interior, continue to calcine stove heat to quartz, start timing when in-furnace temperature rises to 700 DEG C, 3.5 are calcined at 700~850 DEG C
Hour, when insulation 1.5 is small at 750 DEG C, then the quartz calcined is released out of stove, air-cooled or cooled to room temperature；
(3) clean：The quartz block that upper step has been calcined is cleaned with tap water, after the stone for rejecting naked eyes visible foreign
Dry；
(4) grind：The cleaned quartz block of upper step is put into wet-type grinding mill and is milled, the quartz sand milled out exists
It is classified in magnetic separator after the magnetic field intensity magnetic separation of 4000GS, the quartz sand of 60~200 mesh is collected in plastics dislodger
It is interior；
(5) it is dehydrated：The quartz sand that upper step is collected, which is sent into centrifuge, to be dehydrated to the water content ＜ 7% of quartz sand；
(6) pickling：Dewatered quartz sand is added in the pickling reaction kettle of belt stirrer, quartz sand addition is pickling
The 3/10 of reaction kettle volume, adds mix acid liquor material cumulative volume into pickling reaction kettle and accounts for the 2/3 of pickling reaction kettle, by acid
Reaction kettle heat-conducting oil heating is washed to 90 DEG C, when soak cycles pickling 7 is small under agitation, in acid cleaning process, mix acid liquor is from anti-
Kettle upper feeding is answered, lower part discharging, remains that material cumulative volume is constant in pickling reaction kettle, change in every 40 minutes is once stirred
The mixing direction of device；The mix acid liquor is matched somebody with somebody by volume for 12: 1 ratio with 36% concentrated hydrochloric acid and 98% concentrated nitric acid
System forms；
(7) wash：After pickling, the acid solution that is allowed to dry in pickling reaction kettle, adds deionized water and cleans 4~6 times, every time
During cleaning, deionized water is full of pickling kettle, stirring 5~after ten minutes, deionized water is allowed to dry, then cleaned next time；Directly
The pH of material is neutrality in pickling reaction kettle after to addition deionized water, and quartz sand is released out of kettle；
(8) flotation：Quartz sand after washing is added in flotation device, 14~15,000,000 ultra-pure waters is added and adjusts in flotation device
Pulp density starts flotation in the steps below after being 40%：1. hydrochloric acid or ammonium hydroxide adjust the pH to 6.0 of ore pulp, mixing is added
Flotation agent A, stirring flotation 20 minutes after five minutes, clean with ultra-pure water the quartz sand one time in flotation device after flotation is complete；2. is used
Hydrochloric acid adjusts the pH to 2.5 of ore pulp, adds bulk flotation agent B, and the octadecylamine hydrochloride that stirring adds 0.1mol/L after five minutes is molten
Liquid, flotation 20 minutes；Repeat it is above-mentioned 1.~floatation process 2. 5 times, then the good quartz sand of flotation is surpassed with 14~15,000,000
Pure water is cleaned to pH value to discharge after neutrality；
The bulk flotation agent A is made of per 1000ml the component of following dosage：Neopelex：30g, quality
Fraction is 10% sulfuric acid solution：200ml, terpinol：25g, kerosene：40g, isobutanol：10g, 100 DEG C of water：Surplus；Prepare
When, above-mentioned material is uniformly mixed；In use, it is 200ml per m3 ore pulps dosage；The bulk flotation agent B is per 1000ml
It is made of the component of following dosage：The dodecylamine hydrochloride solution of 0.08mol/L：300ml, terpinol：75g, kerosene：15g, it is different
Butanol：25g, 100 DEG C of water：Surplus；During preparation, stirred and evenly mixed after above-mentioned material is mixed；In use, per m3 ore pulp dosages
For 100ml；The black powder is decyl phenol, in use, being 5g per m3 ore pulps dosage；The octadecylamine hydrochloride of the 0.1mol/L
Solution is 100ml per m3 ore pulps dosage；
(9) it is dehydrated：The good quartz sand of upper step flotation is put into centrifuge and is dehydrated to quartz sand water content ＜ 7%；
(10) secondary clacining：Dewatered quartz sand feeding is made in the quartz sand calcining furnace of liner of glass material, will
The temperature control of calcining furnace is at 1200 DEG C, and quartz sand is put into the cooling furnace of glass material by calcining after 45 minutes, natural cooling
Released after to room temperature；
(11) magnetic separation：Quartz sand after calcining is sent into high gradient dry-type magnetic extractor, under the magnetic field intensity of 18000GS
The glass sand packaging and storage magneticly elected.
Glass sand made from the present embodiment is detected through national building materials test center ICP, wherein every element refers to
Mark is as follows：(unit：ppm)
Testing result：SiO2 ≮ 99.99%；
Note：The total amount % of SiO2 (%)=100%- oxide impurities.
Dodecylamine hydrochloride solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid that 1000ml mass fractions are 22%, 14.8g lauryl amines are then added into hot hydrochloric acid, are configured to rubbing for lauryl amine
The dodecylamine hydrochloride solution that your concentration is 0.08mol/L, to obtain the final product.
Octadecylamine HCI solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid that 1000ml mass fractions are 10%, 27g octadecylamines are then added into hot hydrochloric acid, are configured to mole of octadecylamine
Concentration is the octadecylamine HCI solution of 0.1mol/L, to obtain the final product.
Embodiment 4
(1) ore dressing：Artificial separation first is carried out to natural vein quartz ore, rejects naked eyes visible foreign and color and overall ore deposit
The stone that stone differs greatly, the ore for selecting SiO2 content >=99.6% is raw material, is cleaned, crushed, and cleaning is to without obvious
The quartz block that length is 25~40mm is chosen after impurity to dry；
(2) calcine：Quartz calcining furnace (traditional stove thorax) is first preheated to 800 DEG C, is then put into quartz block
In quartz calcining furnace, continue to calcine stove heat to quartz, start timing when in-furnace temperature rises to 700 DEG C, 700~
When calcining 2.7 is small at 850 DEG C, when insulation 2.5 is small at 750 DEG C, then quartz calcine is released out of stove, it is air-cooled or oneself
So it is cooled to room temperature；
(3) clean：The quartz block that upper step has been calcined is cleaned with tap water, after the stone for rejecting naked eyes visible foreign
Dry；
(4) grind：The cleaned quartz block of upper step is put into wet-type grinding mill and is milled, the quartz sand milled out exists
It is classified in magnetic separator after the magnetic field intensity magnetic separation of 4500GS, the quartz sand of 60~200 mesh is collected in plastics dislodger
It is interior；
(5) it is dehydrated：The quartz sand that upper step is collected, which is sent into centrifuge, to be dehydrated to the water content ＜ 7% of quartz sand；
(6) pickling：Dewatered quartz sand is added in the pickling reaction kettle of belt stirrer, quartz sand addition is pickling
The 1/3 of reaction kettle volume, adds mix acid liquor material cumulative volume into pickling reaction kettle and accounts for the 2/3 of pickling reaction kettle, by acid
Reaction kettle heat-conducting oil heating is washed to 95 DEG C, when soak cycles pickling 9 is small under agitation, in acid cleaning process, mix acid liquor is from anti-
Kettle upper feeding is answered, lower part discharging, remains that material cumulative volume is constant in pickling reaction kettle, change in every 45 minutes is once stirred
The mixing direction of device；The mix acid liquor is matched somebody with somebody by volume for 9: 1 ratio with 36% concentrated hydrochloric acid and 98% concentrated nitric acid
System forms；
(7) wash：After pickling, the acid solution that is allowed to dry in pickling reaction kettle, adds deionized water and cleans 4~6 times, every time
During cleaning, deionized water is full of pickling kettle, stirring 5~after ten minutes, deionized water is allowed to dry, then cleaned next time；Directly
The pH of material is neutrality in pickling reaction kettle after to addition deionized water, and quartz sand is released out of kettle；
(8) flotation：Quartz sand after washing is added in flotation device, 14~15,000,000 ultra-pure waters is added and adjusts in flotation device
Pulp density starts flotation in the steps below after being 33%：1. hydrochloric acid or ammonium hydroxide adjust the pH to 4.0 of ore pulp, mixing is added
Flotation agent A, stirring add black powder and stir 5 minutes after five minutes, and flotation 20 minutes, flotation device is cleaned after flotation is complete with ultra-pure water
Interior quartz sand one time；2. adjusts the pH to 2.7 of ore pulp with hydrochloric acid, bulk flotation agent B is added, stirring adds after five minutes
The octadecylamine HCI solution of 0.09mol/L, flotation 20 minutes；Repeat it is above-mentioned 1.~floatation process 2. 3~5 times, then will
The good quartz sand of flotation is cleaned with 14~15,000,000 ultra-pure water be neutrality to pH value after discharge；
The bulk flotation agent A is made of per 1000ml the component of following dosage：Neopelex：22g, quality
Fraction is 10% sulfuric acid solution：270ml, terpinol：30g, kerosene：25g, isobutanol：15g, 85 DEG C of water：Surplus；During preparation,
Above-mentioned material is uniformly mixed；In use, it is 180ml per m3 ore pulps dosage；The bulk flotation agent B is per 1000ml under
State the component composition of dosage：The dodecylamine hydrochloride solution of 0.09mol/L：280ml, terpinol：35g, kerosene：20g, isobutyl
Alcohol：15g, 90 DEG C of water：Surplus；During preparation, stirred and evenly mixed after above-mentioned material is mixed；In use, it is per m3 ore pulp dosages
150ml；The black powder is tert-butyl phenol, in use, being 3g per m3 ore pulps dosage；The octadecylamine hydrochloride of the 0.09mol/L
Solution is 120ml per m3 ore pulps dosage；
(9) it is dehydrated：The good quartz sand of upper step flotation is put into centrifuge and is dehydrated to quartz sand water content ＜ 7%；
(10) secondary clacining：Dewatered quartz sand feeding is made in the quartz sand calcining furnace of liner of glass material, will
At 1100~1200 DEG C, quartz sand is put into the cooling furnace of glass material the temperature control of calcining furnace by calcining after 75 minutes, from
Released after being so cooled to room temperature；
(11) magnetic separation：Quartz sand after calcining is sent into high gradient dry-type magnetic extractor, under the magnetic field intensity of 22000GS
The glass sand packaging and storage magneticly elected.
Glass sand made from the present embodiment is detected through national building materials test center ICP, wherein every element refers to
Mark is as follows：(unit：ppm)
Testing result：SiO2 ≮ 99.99%；
Note：The total amount % of SiO2 (%)=100%- oxide impurities.
Dodecylamine hydrochloride solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid that 1000ml mass fractions are 18%, 16.7g lauryl amines are then added into hot hydrochloric acid, are configured to rubbing for lauryl amine
The dodecylamine hydrochloride solution that your concentration is 0.09mol/L, to obtain the final product.
Octadecylamine HCI solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid that 1000ml mass fractions are 10%, 24.3g octadecylamines are then added into hot hydrochloric acid, are configured to rubbing for octadecylamine
The octadecylamine HCI solution that your concentration is 0.09mol/L, to obtain the final product.
Embodiment 5
(1) ore dressing：Artificial separation first is carried out to natural vein quartz ore, rejects naked eyes visible foreign and color and overall ore deposit
The stone that stone differs greatly, the ore for selecting SiO2 content >=99.6% is raw material, is cleaned, crushed, and cleaning is to without obvious
The quartz block that length is 25~40mm is chosen after impurity to dry；
(2) calcine：Quartz calcining furnace (traditional electric furnace) is first preheated to 800 DEG C, quartz block is then put into stone
In diamond stone calcining furnace, continue to calcine stove heat to quartz, start timing when in-furnace temperature rises to 700 DEG C, 700~850
When calcining 3.3 is small at DEG C, when insulation 2.2 is small at 750 DEG C, then the quartz calcined is released out of stove, it is air-cooled or natural
It is cooled to room temperature；
(3) clean：The quartz block that upper step has been calcined is cleaned with tap water, after the stone for rejecting naked eyes visible foreign
Dry；
(4) grind：The cleaned quartz block of upper step is put into wet-type grinding mill and is milled, the quartz sand milled out exists
It is classified in magnetic separator after the magnetic field intensity magnetic separation of 3500GS, the quartz sand of 60~200 mesh is collected in plastics dislodger
It is interior；
(5) it is dehydrated：The quartz sand that upper step is collected, which is sent into centrifuge, to be dehydrated to the water content ＜ 7% of quartz sand；
(6) pickling：Dewatered quartz sand is added in the pickling reaction kettle of belt stirrer, quartz sand addition is pickling
The 1/4 of reaction kettle volume, adds mix acid liquor material cumulative volume into pickling reaction kettle and accounts for the 1/2 of pickling reaction kettle, by acid
Reaction kettle heat-conducting oil heating is washed to 85 DEG C, when soak cycles pickling 6 is small under agitation, in acid cleaning process, mix acid liquor is from anti-
Kettle upper feeding is answered, lower part discharging, remains that material cumulative volume is constant in pickling reaction kettle, change in every 35 minutes is once stirred
The mixing direction of device；The mix acid liquor is matched somebody with somebody by volume for 15: 1 ratio with 36% concentrated hydrochloric acid and 98% concentrated nitric acid
System forms；
(7) wash：After pickling, the acid solution that is allowed to dry in pickling reaction kettle, adds deionized water and cleans 4~6 times, every time
During cleaning, deionized water is full of pickling kettle, stirring 5~after ten minutes, deionized water is allowed to dry, then cleaned next time；Directly
The pH of material is neutrality in pickling reaction kettle after to addition deionized water, and quartz sand is released out of kettle；
(8) flotation：Quartz sand after washing is added in flotation device, 14~15,000,000 ultra-pure waters is added and adjusts in flotation device
Pulp density starts flotation in the steps below after being 37%：1. hydrochloric acid or ammonium hydroxide adjust the pH to 5.0 of ore pulp, mixing is added
Flotation agent A, stirring add black powder and stir 5 minutes after five minutes, and flotation 20 minutes, flotation device is cleaned after flotation is complete with ultra-pure water
Interior quartz sand one time；2. adjusts the pH to 3.0 of ore pulp with hydrochloric acid, bulk flotation agent B is added, stirring adds after five minutes
The octadecylamine HCI solution of 0.08mol/L, flotation 20 minutes；Repeat it is above-mentioned 1.~floatation process 2. 3~5 times, then will
The good quartz sand of flotation is cleaned with 14~15,000,000 ultra-pure water be neutrality to pH value after discharge；
The bulk flotation agent A is made of per 1000ml the component of following dosage：Neopelex：27g, quality
Fraction is 10% sulfuric acid solution：220ml, terpinol：35g, kerosene：20g, isobutanol：22g, 95 DEG C of water：Surplus；During preparation,
Above-mentioned material is uniformly mixed；In use, it is 120ml per m3 ore pulps dosage；The bulk flotation agent B is per 1000ml under
State the component composition of dosage：The dodecylamine hydrochloride solution of 0.11mol/L：220ml, terpinol：60g, kerosene：30g, isobutyl
Alcohol：12g, 85 DEG C of water：Surplus；During preparation, stirred and evenly mixed after above-mentioned material is mixed；In use, it is per m3 ore pulp dosages
120ml；The black powder cresols, in use, being 2g per m3 ore pulps dosage；The octadecylamine HCI solution of the 0.08mol/L is every
M3 ore pulps dosage is 180ml；
(9) it is dehydrated：The good quartz sand of upper step flotation is put into centrifuge and is dehydrated to quartz sand water content ＜ 7%；
(10) secondary clacining：Dewatered quartz sand feeding is made in the quartz sand calcining furnace of liner of glass material, will
The temperature control of calcining furnace is at 1180 DEG C, and quartz sand is put into the cooling furnace of glass material by calcining after 65 minutes, natural cooling
Released after to room temperature；
(11) magnetic separation：Quartz sand after calcining is sent into high gradient dry-type magnetic extractor, under the magnetic field intensity of 22000GS
The glass sand packaging and storage magneticly elected.
Glass sand made from the present embodiment is detected through national building materials test center ICP, wherein every element refers to
Mark is as follows：(unit：ppm)
Testing result：SiO2 ≮ 99.99%；
Note：The total amount % of SiO2 (%)=100%- oxide impurities.
Dodecylamine hydrochloride solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid that 1000ml mass fractions are 20%, 20.4g lauryl amines are then added into hot hydrochloric acid, are configured to rubbing for lauryl amine
The dodecylamine hydrochloride solution that your concentration is 0.11mol/L, to obtain the final product.
Octadecylamine HCI solution described in the present embodiment, is first to be added in 50 DEG C of hot water to prepare with 36% concentrated hydrochloric acid
Into the dilute hydrochloric acid solution that 1000ml mass fractions are 10%, 21.6g octadecylamines are then added into hot hydrochloric acid, are configured to octadecylamine
Molar concentration be 0.08mol/L octadecylamine HCI solution, to obtain the final product.
Embodiment 6
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 1, Fig. 2, Fig. 3 are the quartz calcining furnaces used in above-described embodiment 1,2,3, it
With the furnace body 2 being placed in support base 1, furnace body 2 is made of furnace wall 3 and the sealing of upper plate 4 and lower plate 5, the stove
2 internal sleeve of body is equipped with stove 6 in one, and interior stove 6 has the rectangular parallelepiped structure of upper and lower opening, the upper plate 4 and lower plate of the furnace body 2
5 middle part offers feed inlet 9 and discharge port 10 respectively, and feed inlet 9 and discharge port 10 are corresponding with the fire door up and down of interior stove 6 respectively
Connection, a fire door 11 is provided with discharge port 10；The left and right sides of the interior stove 6 are evenly equipped with heat-conducting plate 7, close to left and right heat conduction
7 outer surface of plate is respectively provided with a vertical setting of types Elema 8, and it is in be longitudinally arranged that the Elema 8, which is placed in furnace body 2, the both ends of Elema 8
It is respectively and fixedly installed on furnace wall 3, all Elemas 8 are formed with the electric cabinet 17 of control and connected in the furnace body 2, wherein adjacent
It is connected between two Elemas 8 with bronze medal, forms shunt circuit.
Furnace body 2 described in the present embodiment is rectangular parallelepiped structure, and upper plate 4 and the lower plate 5 of furnace body 2 are steel structure,
The feed inlet 9 of furnace body 2 is less than discharge port 10.
Furnace wall 3 described in the present embodiment is built by some refractory brick, and the outer surface of furnace wall 3 is pasted with one layer of heat preservation cotton
12。
Heat-conducting plate 7 described in the present embodiment is high-temperature resistant silicon carbide material, and 7 Assimilation and conductivity Elema 8 of heat-conducting plate is sent
Heat, to ensure that the quartz in interior stove 6 is heated evenly.
The front and rear sides of furnace body 2 described in the present embodiment are respectively provided with a thermocouple 13, and two thermocouples 13 are extend into
Inside furnace body 2, and it is in contact with 7 outer wall of heat-conducting plate of interior stove 6, two thermocouples interlaced arrangement about 13, the thermocouple 13
Form and connect with the electric cabinet 17 of control, to the temperature data recorded at any time by switch board 17, quartz is calcined in stove 6 in detection
Temperature.
Fire door 11 described in the present embodiment is made of two pieces of movable strippers 14, an end face of every piece of stripper 14
Upper be welded respectively has an interlocking lever 15, and the interlocking lever 15 is rotatably installed in support base 1, and one end installation of interlocking lever 15 is pulled
Hand 16.
A feeding skid 19 has been built on the side of calcining furnace body 2 described in the present embodiment, is built on the lower section ground of furnace body 2
A square material storage container 20 is made, the lower section for facing fire door 11 is mounted with a receiving hopper 18, the stone baked in furnace body 2
Diamond stone is stored in material storage container 20 by receiving hopper 18.
Calcined by above-described embodiment 1,2,3 quartz calcining furnaces using the present invention, with using biography in embodiment 4
The practical condition calcined in system stove thorax and embodiment 5 using traditional electric furnace is contrasted, and finds the stone using the present invention
Diamond stone calcining furnace has the following advantages：
(1) quartz calcining furnace of the present invention at the same time under (diel), the ripe stone of finished product that furnace body can be calcined out
Yield be about 5 times of chamber of a kitchen range stove, 2 times of resistance furnace, while the electric energy that the present invention is consumed is less.
(2) using thermocouple control temperature, understanding that can be fully aware of for the calcining situation in stove, and for going out
Expect that the quality control of product is very stablized.
(3) calcined using quartz calcining furnace of the present invention, quartz is heated evenly, goes out in subsequent wet is milled
Expect evenly, mass output rate higher.
(4) to be cleaned with traditional coal compared with using Elema heating, is environmentally friendly, at the same Elema relative to resistance wire and
Speech, service life is longer, and it is convenient that Elema is replaced in disconnected rod, and the Elema damaged can also recycle repetition and make
With.
Claims (9)
- A kind of 1. method that glass sand is prepared using vein quartz environmental protection, it is characterised in that comprise the following steps：(1) ore dressing：Artificial separation first is carried out to natural vein quartz ore, naked eyes visible foreign and color is rejected and overall ore is poor Different larger stone, the ore for selecting SiO2 content >=99.6% is raw material, is cleaned, crushed, and cleaning is to without obvious impurity The quartz block that length is 25~40mm is chosen afterwards to dry；(2) calcine：Quartz calcining furnace is first preheated to 800 DEG C, then quartz block is put into quartz calcining furnace, after It is continuous that stove heat is calcined to quartz, start timing when in-furnace temperature rises to 700 DEG C, 2.5~3.5 are calcined at 700~850 DEG C Hour, when insulation 1.5~3 is small at 750 DEG C, then the quartz calcined is released out of stove, it is air-cooled or naturally cool to room Temperature；(3) clean：The quartz block that upper step has been calcined is cleaned with tap water, is dried in the air after rejecting the stone of naked eyes visible foreign It is dry；(4) grind：The cleaned quartz block of upper step is put into wet-type grinding mill and is milled, the quartz sand milled out is in magnetic separation It is classified in machine after the magnetic field intensity magnetic separation of 3000~5000GS, the quartz sand of 60~200 mesh is collected and is deposited in plastics In groove；(5) it is dehydrated：The quartz sand that upper step is collected, which is sent into centrifuge, to be dehydrated to the water content ＜ 7% of quartz sand；(6) pickling：Dewatered quartz sand is added in the pickling reaction kettle of belt stirrer, quartz sand addition is reacted for pickling The 1/4~1/3 of autoclave body product, adds mix acid liquor material cumulative volume into pickling reaction kettle and accounts for the 1/2~2/ of pickling reaction kettle 3, by pickling reaction kettle heat-conducting oil heating to 80~100 DEG C, when soak cycles pickling 6~10 is small under agitation, acid cleaning process In, mix acid liquor discharges from reaction kettle upper feeding, lower part, remains that material cumulative volume is constant in pickling reaction kettle, and every 30 ~50 minutes mixing directions for changing a blender；The mix acid liquor be with 36% concentrated hydrochloric acid and 98% concentrated nitric acid by The ratio that volume ratio is 8: 1~15: 1 is formulated；(7) wash：After pickling, the acid solution that is allowed to dry in pickling reaction kettle, adds deionized water and cleans 4~6 times, until adding The pH of material is neutrality in pickling reaction kettle after deionized water, and quartz sand is released out of kettle；(8) flotation：Quartz sand after washing is added in flotation device, 14~15,000,000 ultra-pure waters is added and adjusts ore pulp in flotation device Concentration starts flotation in the steps below after being 30%~40%：1. the pH that hydrochloric acid or ammonium hydroxide adjust ore pulp is 3.0~6.0, add Enter bulk flotation agent A, stirring adds black powder and stirs 5 minutes after five minutes, and flotation 20 minutes, is cleaned after flotation is complete with ultra-pure water Quartz sand in flotation device one time；2. the pH that hydrochloric acid adjusts ore pulp is 2.0~3.0, bulk flotation agent B is added, stirs 5 points The octadecylamine HCI solution of 0.05~0.1mol/L, flotation 20 minutes are added after clock；Repeat it is above-mentioned 1.~floatation process 3 2. ~5 times, then the good quartz sand of flotation is cleaned with 14~15,000,000 ultra-pure water after being neutrality to pH value and discharged；The bulk flotation agent A is made of per 1000ml the component of following dosage：Neopelex：20~30g, quality Fraction is 10% sulfuric acid solution：200~300ml, terpinol：25~50g, kerosene：15~40g, isobutanol：10~25g, 80 ~100 DEG C of water：Surplus；During preparation, stirred evenly after above-mentioned material is mixed；In use, per m3 ore pulps dosages for 100~ 200ml；The bulk flotation agent B is made of per 1000ml the component of following dosage：The lauryl amine hydrochloric acid of 0.08~0.12mol/L Salting liquid：200~300ml, terpinol：25~75g, kerosene：15~40g, isobutanol：10~25g, 80~100 DEG C of water：It is remaining Amount；During preparation, stirred and evenly mixed after above-mentioned material is mixed；In use, it is 100~200ml per m3 ore pulps dosage；It is described black Medicine is phenol black powder, in use, being 0~5g per m3 ore pulps dosage；The octadecylamine HCI solution of the 0.05~0.1mol/L is every M3 ore pulps dosage is 100~200ml；(9) it is dehydrated：The good quartz sand of upper step flotation is put into centrifuge and is dehydrated to quartz sand water content ＜ 7%；(10) secondary clacining：Dewatered quartz sand feeding is made in the quartz sand calcining furnace of liner of glass material, will be calcined At 1100~1200 DEG C, quartz sand is put into the cooling furnace of glass material the temperature control of stove by calcining after 45~90 minutes, from Released after being so cooled to room temperature；(11) magnetic separation：Quartz sand after calcining is sent into high gradient dry-type magnetic extractor, it is strong in the magnetic field of 18000~25000GS The glass sand packaging and storage magneticly elected under degree, is detected, wherein SiO2 ≮ 99.99% through ICP.
- A kind of 2. method that glass sand is prepared using vein quartz environmental protection according to claim 1, it is characterised in that：Institute The dodecylamine hydrochloride solution stated, is first to add 36% concentrated hydrochloric acid in 50 DEG C of hot water to be diluted to HCl mass fractions as 15% ~25%, lauryl amine then is added into hot hydrochloric acid, the molar concentration for being configured to lauryl amine is the 12 of 0.08~0.12mol/L Amide hydrochloride, to obtain the final product.
- A kind of 3. method that glass sand is prepared using vein quartz environmental protection according to claim 1, it is characterised in that：Institute The octadecylamine HCI solution stated, is first to add in 50 DEG C of hot water and be diluted to HCl mass fractions as 10% 36% concentrated hydrochloric acid, Then octadecylamine is added into hot hydrochloric acid, the molar concentration for being configured to octadecylamine is the octadecylamine hydrochloride of 0.05~0.1mol/L Solution, to obtain the final product.
- 4. a kind of quartz prepared using vein quartz environmental protection used in the method for glass sand as claimed in claim 1 is calcined Stove, has the furnace body being placed in support base, and furnace body is made of furnace wall and the sealing of upper plate and lower plate, its feature exists In：The furnace interior is set with stove in one, and interior stove has the rectangular parallelepiped structure of upper and lower opening, and the upper plate of the furnace body is with The middle part of bottom plate offers inlet port and outlet port respectively, and inlet port and outlet port are corresponding with the upper and lower fire door of interior stove respectively to be connected Connect, one fire door is installed in discharge port；The left and right sides of the interior stove are evenly equipped with heat-conducting plate, close to left and right heat-conducting plate outer surface One vertical setting of types Elema is respectively installed, the Elema is placed in being longitudinally arranged in furnace body, and the both ends of Elema are fixedly mounted respectively On furnace wall, all Elemas are formed with the electric cabinet of control and connected in the furnace body, wherein between two adjacent Elemas with Bronze medal is connected, and forms shunt circuit.
- A kind of 5. quartz calcining furnace according to claim 4, it is characterised in that：The furnace body is rectangular parallelepiped structure, stove The upper plate of body and lower plate are steel structure, and the feed inlet of furnace body is less than discharge port.
- A kind of 6. quartz calcining furnace according to claim 4, it is characterised in that：Built by some refractory brick the furnace wall Form, the outer surface of furnace wall is pasted with one layer of heat preservation cotton.
- A kind of 7. quartz calcining furnace according to claim 4, it is characterised in that：The heat-conducting plate is high-temperature resistant silicon carbide Material.
- A kind of 8. quartz calcining furnace according to claim 4, it is characterised in that：Respectively install the front and rear sides of the furnace body There is a thermocouple, two thermocouples extend into furnace interior, and are in contact with the heat-conducting plate outer wall of interior stove, on two thermocouples Lower interlaced arrangement, the thermocouple are formed with the electric cabinet of control and connected.
- A kind of 9. quartz calcining furnace according to claim 4, it is characterised in that：The fire door is by two pieces of movable compositions Stripper forms, and being welded respectively on an end face of every piece of stripper has an interlocking lever, and the interlocking lever is rotatably installed in branch Support on base, one end assembly wrench of interlocking lever.
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| CN108275686A (en) * | 2018-04-18 | 2018-07-13 | 奈曼旗忠義砂产业有限公司 | A kind of production method of natural siliceous sand |
| CN110885239A (en) * | 2019-11-22 | 2020-03-17 | 苏州溪能环保科技有限公司 | Preparation method of high-purity fused quartz powder |
| CN112723363A (en) * | 2020-12-27 | 2021-04-30 | 江苏新达石英有限公司 | Coupling purification process for producing high-purity quartz powder |
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| CN116375041A (en) * | 2023-04-26 | 2023-07-04 | 安徽宏益光伏新材料有限公司 | Device and method for preparing high-purity quartz sand from quartz stone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108275686A (en) * | 2018-04-18 | 2018-07-13 | 奈曼旗忠義砂产业有限公司 | A kind of production method of natural siliceous sand |
| CN110885239A (en) * | 2019-11-22 | 2020-03-17 | 苏州溪能环保科技有限公司 | Preparation method of high-purity fused quartz powder |
| CN112723363A (en) * | 2020-12-27 | 2021-04-30 | 江苏新达石英有限公司 | Coupling purification process for producing high-purity quartz powder |
| CN113357913A (en) * | 2021-06-29 | 2021-09-07 | 曹明贵 | Electromagnetic heating furnace for purifying polycrystalline silicon |
| CN113432432A (en) * | 2021-07-28 | 2021-09-24 | 周大福珠宝文化产业园(武汉)有限公司 | Electric ceramic furnace and using method thereof |
| CN113432432B (en) * | 2021-07-28 | 2023-08-25 | 周大福珠宝文化产业园(武汉)有限公司 | Electric ceramic furnace and application method thereof |
| CN114716179A (en) * | 2022-04-26 | 2022-07-08 | 信阳师范学院 | Artificial natural texture white quartz stone decorative plate and preparation method thereof |
| CN115872411A (en) * | 2022-12-23 | 2023-03-31 | 江苏辉迈粉体科技有限公司 | Preparation device and preparation method of high-purity spherical quartz sand |
| CN116375041A (en) * | 2023-04-26 | 2023-07-04 | 安徽宏益光伏新材料有限公司 | Device and method for preparing high-purity quartz sand from quartz stone |
| CN116375041B (en) * | 2023-04-26 | 2024-06-04 | 安徽宏益光伏新材料有限公司 | Device and method for preparing high-purity quartz sand from quartz stone |
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Application publication date: 20180417 |