CN101590440A - Continuous wet-grinding technology and relative device - Google Patents
Continuous wet-grinding technology and relative device Download PDFInfo
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- CN101590440A CN101590440A CNA2008100987906A CN200810098790A CN101590440A CN 101590440 A CN101590440 A CN 101590440A CN A2008100987906 A CNA2008100987906 A CN A2008100987906A CN 200810098790 A CN200810098790 A CN 200810098790A CN 101590440 A CN101590440 A CN 101590440A
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Abstract
The invention discloses a kind of continuous wet-grinding technology and relevant device thereof.Its continuous wet-grinding system is made up of one or more of continuous wet-grinding lines, described continuous wet-grinding line is by 2 or more sealing wet milks of (a) polyphone, (b) there is not continuous non-tight container between the sealing wet milk, what (c) link to each other before first wet milk in the described polyphone wet milk series provides charging and the required pressure of Flow of Goods and Materials and adjusts the positive displacement pump of flow, (d) can select before other one or more wet milks except first wet milk in the described polyphone wet milk series to link to each other pressure only is provided but one or more non-displacement pump of not changing flow is formed.The present invention also discloses a kind of polyester that contains inorganic filler, and with the inorganic filler narrow diameter distribution that described continuous wet-grinding technology and relative device is produced, coarse granule is few, and end breakage rate is low during spinning.Inorganic filler for example carbon black need evenly disperse in polyester, and fiber spinnability just can be got well.
Description
(1) technical field
The present invention discloses a kind of continuous wet-grinding technology and relevant device thereof, and a kind of polyester that contains through the high-quality inorganic filler of continuous wet-grinding.
(2) background technology
The solid material that wet-milling is used for pulverizing liquid finds broad application in Chemical Manufacture, particularly sand milling and pearl mill.The technological process of wet-milling system at present is batch formula production mostly, and one seals or positive displacement pump of packing less wet milk front installation such as gear pump or membrane pump control flow, an open containers is arranged after the wet milk discharging.Material enters wet milk from positive displacement pump, enters open containers after the grinding.This technological process is applicable to that the product of the many kinds of small lot for example paints and printing ink.
Stop in wet milk with a grinding material and to compare for a long time, repeatedly grinding each material, to stop the product quality of short time better, and particle diameter is evenly distributed.Therefore the grinding effect of many wet milk polyphones is relatively good.
For the grinding of the needed large batch of inorganic filler of chemical fibre industry, production can be saved the man power and material continuously, reduces the environmental pollution that cleaning equipment causes.In existing technology, when many wet milk polyphones, the discharging of every wet milk needs the surge tank of an opening or claims scuffing of cylinder bore, and material enters next wet milk through the positive displacement pump of control flow after the scuffing of cylinder bore.Operating personnel need often to observe the material of scuffing of cylinder bore the inside, prevent that liquid level is too low or liquid level is too high and overflow.
Do not have the continuously grinding system of many wet milk polyphones of open containers not need operating personnel often to observe the material of scuffing of cylinder bore the inside between the wet milk, help continuous production.If before every wet milk a positive displacement pump such as screw pump or gear pump or membrane pump are installed all, grinding system is difficult to even running, controls very difficult.Even the rotating speed of every positive displacement pump is identical, flow can be not the same yet, because the viscosity of material before and after grinding, temperature etc. all change.
United States Patent (USP) 5,080,293 and 5,199,656 disclose a kind of continuous wet-grinding system, have only an abrading cylinder rather than many wet milks polyphones.This system is not suitable for needing to grind the chemical fibre industry of a large amount of high-quality inorganic filler slurries.
Therefore be badly in need of the continuous wet-grinding technology and relative device of a cover, its continuous wet-grinding system operates steadily, and flow-control is easy, good product quality.
(3) Fa Ming purpose
Technical problem to be solved by this invention is the Processes and apparatus problem in continuous wet-grinding technology and relative device.Continuous wet-grinding technology and relative device is even more important for the polyester industrial of a large amount of high-quality inorganic fillers of needs.
(4) summary of the invention
The present invention discloses a kind of continuous wet-grinding technology and relative device, its continuous wet-grinding system is made up of one or more of continuous wet-grinding lines, described continuous wet-grinding line is by two or more sealing wet milk series of (1) polyphone, (2) there is not continuous non-tight container between the described sealing wet milk, what (3) link to each other before first wet milk in the described polyphone wet milk series provides charging and the required pressure of Flow of Goods and Materials and adjusts the positive displacement pump of flow, link to each other before other wet milks in (4) described polyphone wet milk series except first wet milk pressure only is provided but the non-displacement pump that do not change flow is formed.The speed adjustment of the positive displacement pump of the flow of material before by first sealing wet milk.The non-displacement pump of back sealing wet milk does not change mass flow.
The example of sealing wet milk includes but not limited to seal sand mill, and the sealant beads grinding machine perhaps seals pebble plain, ball sealer grinding machine and sealing grater.Widely used sealing wet milk is sealing sand mill and sealant beads grinding machine.Described sealing wet milk can be vertical or horizontal.On the wet milk cooling system can be arranged.If necessary on the technology, can cool off with chilled water, between the wet milk of polyphone, the cools down material can also be installed.
The example of grinding bead includes but not limited to bead, quartz sand, zirconium silicate pearl, zirconium oxide bead, steel ball or the like.The grinding bead size arrives 10mm for 0.1mm, and more usually 0.6mm is to 3mm, and the most frequently used is that 0.8mm is to 2mm.
Solids content is 1% to 90% in the material of being processed, and is more preferably 10% to 70%, preferably 20% to 50%.Liquid can be water, ethylene glycol, perhaps other organic or inorganic solvents.
Before the wet-milling system devices such as blending tank and head tank can be arranged, dilution can be arranged, devices such as filtration after the grinding system.Material enters the wet-milling system by head tank, enters devices such as dilution and filtration after the grinding, enters the finished product jar after quality inspection is qualified.
The example of positive displacement pump includes but not limited to measuring pump, reciprocating pump, piston pump, plunger displacement pump, membrane pump, impeller pump, gear pump, screw pump, sliding-vane pump, lobe pump, lobe pump, peristaltic pump, or wherein two or more combinations.Widely used positive displacement pump is a membrane pump, gear pump, perhaps screw pump.
The example of non-displacement pump includes but not limited to dynamics pump, centrifugal pump, magnetic force driven centrifugal pump, Radial pump, mixed flow centrifugal pump, canned motor pump, tubing pump, self priming pump, Non-blinding pump, axial-flow pump, tangent pump, express pump, peripheral pump, turbulence pump, mortar pump, or wherein two or more combinations.The most widely used non-displacement pump is a centrifugal pump.Leak if require not have, preferred non-displacement pump is a magnetic force driven centrifugal pump.If solid content is higher in the material, the impeller of centrifugal pump can be selected open form for use or partly cover formula, avoids runner to stop up.
Described continuously grinding system can turn round 1 to 24 hour every day continuously, was more preferably the every day of running 10 to 20 hours continuously, and preferably the every day of running 12 to 18 hours continuously makes the existing greater efficiency of process units that enough elasticity be arranged again, is convenient to necessary maintenance.
Sealing wet milk of the present invention and positive displacement pump and non-displacement pump can use any metal or non-metallic material that satisfies material and process conditions, bearing steel for example, and carbon steel, stainless steel, titanium or titanium alloy, polyurethane, pottery is zirconia for example, engineering plastics etc.Repeatedly hot-working can improve the hardness raising anti-wear performance of steel.
Sealing wet milk of the present invention and positive displacement pump and non-displacement pump can for example weld forging and pressing, casting, injection molding etc. by the personnel that are familiar with machinery manufacturing industry with any method manufacturing of understanding.
The present invention further discloses a kind of continuous wet-grinding technology and relative device, its continuous wet-grinding system is made up of one or more of continuous wet-grinding lines, described continuous wet-grinding line is by three or more sealing wet milk series of (1) polyphone, (2) sealing not have the non-tight container that links to each other between the wet milk, and what link to each other before first wet milk in (3) described polyphone wet milk series provides charging and the required pressure of Flow of Goods and Materials and adjust the positive displacement pump composition of flow.
The example of sealing wet milk includes but not limited to seal sand mill, sealant beads grinding machine, sealing pebble plain, ball sealer grinding machine and sealing grater.Widely used sealing wet milk is sealing sand mill and sealant beads grinding machine.Described sealing wet milk can be vertical or horizontal.On the wet milk cooling system can be arranged.If necessary on the technology, can cool off wet milk with chilled water, between the wet milk of polyphone, the cools down material can also be installed.
The example of positive displacement pump includes but not limited to measuring pump, reciprocating pump, piston pump, plunger displacement pump, membrane pump, impeller pump, gear pump, screw pump, sliding-vane pump, lobe pump, lobe pump, peristaltic pump, or wherein two or more combinations.Widely used positive displacement pump is a membrane pump, gear pump and screw pump.
Other one or more sealing in the described polyphone wet milk series except first sealing wet milk can be selected before the wet milk to link to each other with one or more the non-displacement pump that pressure only is provided but does not change flow;
The example of non-displacement pump includes but not limited to dynamics pump, centrifugal pump, magnetic force driven centrifugal pump, Radial pump, mixed flow centrifugal pump, canned motor pump, tubing pump, self priming pump, Non-blinding pump, axial-flow pump, tangent pump, express pump, peripheral pump, turbulence pump, mortar pump, or wherein two or more combinations.The most widely used non-displacement pump is a centrifugal pump.Leak if require not have, preferred non-displacement pump is a magnetic force driven centrifugal pump.If solid content is higher in the material, the impeller of centrifugal pump can be selected open form for use or partly cover formula, avoids runner to stop up.
In polyphone wet milk series, except first sealing wet milk needs the positive displacement pump, the sealing wet milk of back is not every all to be needed to link to each other with non-displacement pump.The non-displacement pump that wet milk connected that I find the back more after a little while, the sand mill internal pressure of front is higher, so the wet-milling energy density is higher, grinding efficiency is higher.If but removed the non-displacement pump that all wet milks of back are connected, the wet milk internal pressure of front might too highly cause leakage, unless make it can bear more high pressure through particular design.
The present invention also discloses a kind of polyester, it is made up of carbonyls or its oligomer and glycol institute's repeat units derived and inorganic filler, described carbonyls is HO-R-COOH or R ' OOCACOOR ', wherein A is alkylidene, arlydene, the alkenylene that 2 to 30 carbon atoms are arranged, perhaps both above combinations, each R or R ' are independently selected from the hydrogen in (i), and the hydrogen carboxyl group of carboxyl in terminal (ii) arranged, and perhaps (iii) contain the alkyl of 1 to 30 carbon atom; Described oligomer has 1 to 100 repetitive;
Described inorganic filler is with a kind of continuous wet-grinding technology and relative device production, its continuous wet-grinding system is made up of one or more continuous wet-grinding line, described continuous wet-grinding line is by 2 or more sealing wet milk series of (1) polyphone, (2) do not connect the non-tight container between the sealing wet milk, what (3) link to each other before first sealing wet milk in the described polyphone wet milk series provides charging and the required pressure of Flow of Goods and Materials and adjusts the positive displacement pump of flow, can select before other one or more sealing wet milk in (4) described polyphone wet milk series except first sealing wet milk to link to each other pressure only is provided but one or more non-displacement pump of not changing flow is formed; Described inorganic filler is 0.01% to 10% of a described polyester.
The example of carbonyls includes but not limited to terephthalic acid (TPA), M-phthalic acid, naphthalenedicarboxylic acid, dimethyl terephthalate (DMT), DMIP, naphthalene diformic acid dimethyl ester, adipic acid; The example of glycol includes but not limited to ethylene glycol, 1, and 2-propane diols, 1, ammediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, diethylene glycol (DEG), polyethylene glycol, perhaps wherein two or more above combination of compounds.
The example of inorganic filler includes but not limited to carbon black, titanium dioxide, barium sulfate, silica.The inorganic filler slurry narrow diameter distribution of in continuous sand milling system, producing, corase particles is less, is uniformly dispersed in polyester, and end breakage rate is low when spinning or membrane.High-quality inorganic filler slurry should reach 500 to 5000 milliliters (diameter of stainless steel filtering net is 57 millimeters) in the vacuum filtration of 325x2300 purpose.
Polyester fiber needn't dye after adding carbon black, has removed the environmental pollution that dyeing course causes from, and described carbon black is 0.3% to 3% of a described polyester.
Titanium dioxide can be used as the delustering agent of polyester fiber, and the polyester fiber that adds titanium dioxide 0.2% to 0.5% is a semi dull fibre, and the polyester fiber that adds titanium dioxide 1% to 3% is the full-dull fiber.
The polyester of barium sulfate-containing or silica 0.1% to 1% has better spinnability and other performance.
(5) specific embodiment
Following example is further explained the specific embodiment of the present invention, and should not be used to limit the scope of the invention inadequately.
Example 1
The continuous wet-milling device of one cover has the continuous sanded lines of three parallel connections, and every sanded lines is made up of three 250L horizontal sealing sand mill polyphones.The feed pump of first sand mill of every sanded lines is a membrane pump, is used to provide pressure and adjusts flow.The feed pump of second and the 3rd sand mill is a centrifugal pump, only provides pressure and does not change flow.Except pump and pipeline, there are not scuffing of cylinder bore or other non-tight containers between the sand mill.Every sand mill has cooling system.Grinding bead is 1.0-1.2mm zirconium silicate pearl (contain ZrO2 64%, SiO2 33%), and loading is 80% of a sand mill dischargeable capacity.
Grinding material is the carbon black slurry, and carbon black 25% by weight, solvent ethylene glycol and dispersant 75%.In the blending tank of 9.1 cubic metres of volumes, add ethylene glycol and dispersant 3000kg, under stirring condition, add carbon black powder 1000kg then, mix the back and continue to stir 1 hour.This slurry is sent into first sand mill with membrane pump then with the head tank that is pumped into 13.3 cubic metres, the flow of the speed control slurry of membrane pump, per hour 480kg.The discharging of first sand mill enters second sand mill through centrifugal pump, and the discharging of second sand mill enters the 3rd sand mill through centrifugal pump.The discharging of the 3rd sand mill enters the pans of 9.1 cubic metres of volumes.Slurry enters the thinning tank of 9.1 cubic metres of volumes then, adds ethylene glycol and is diluted to 20%, enters 30 cubic metres finished product jar through filter.
The carbon black slurry of the carbon black 20% that the continuous wet-grinding system is produced adds the polymerization process of PETG then and produces 300 tons of black polyester fibers daily.Daily output grey polyester 300 ton hours (containing titanium dioxide 0.3% and carbon black 0.6%), carbon black sand milling device turned round 5 hours every day continuously.Daily output black polyester 300 ton hours (carbon black 2%), carbon black sand milling device turned round 16.6 hours every day continuously.
Example 2
The one cover continuous sand milling device similar with example 1, difference is to have only a continuous sand milling production line, three 250L horizontal sealing sand mills are contacted.Material is that titanium dioxide 55% slurry solvent is an ethylene glycol, and the flow in the sand mill per hour is 1500kg.Titania slurry is diluted to 20% after the sand milling.
Continuous wet-grinding gained titanium dioxide 20% slurry adds the polymerization process of 600 tons of PETGs of daily output.Produce half delustring polyester fiber, 600 ton hours (containing titanium dioxide 0.3%) daily, titanium dioxide sand milling system turned round 2 hours 10 minutes every day continuously.Daily output whole extinction polyester fiber 600 ton hours (containing titanium dioxide 2.5%), titanium dioxide sand milling system turned round 18 hours every day continuously.
Example 3
The continuous wet-milling device of one cover has the continuous sanded lines of two parallel connections, and every sanded lines is made up of three 250L horizontal sealing sand mill polyphones.The feed pump of first sand mill of every sanded lines is a screw pump, is used to provide pressure and adjusts flow.Second, the feed pump of the 3rd and the 4th sand mill is a magnetic force driven centrifugal pump, only provides pressure and does not change flow, and every centrifugal pump has by-pass line and valve.Except pump and pipeline, there are not scuffing of cylinder bore or other non-tight containers between the sand mill.Every sand mill has cooling system.Used grinding bead is 1.0-1.2mm zirconium silicate pearl (contain ZrO2 64%, SiO2 33%), and loading is 80% of a sand mill dischargeable capacity.
Material is the carbon black slurry, and carbon black 25% by weight, solvent ethylene glycol and dispersant 75%.In the blending tank of 9.1 cubic metres of volumes, add ethylene glycol and dispersant 3000kg, under stirring condition, add carbon black powder 1000kg then, mix the back and continue to stir 1 hour.This slurry is sent into first sand mill with screw pump then with the head tank that is pumped into 13.3 cubic metres, the flow of the speed control slurry of screw pump, per hour 640kg.The discharging of first sand mill enters second sand mill through centrifugal pump, and the discharging of second sand mill enters the 3rd sand mill through centrifugal pump.The discharging of the 3rd sand mill enters the 4th sand mill through centrifugal pump.Four interior pressure of sand mill approximately are 0.05MPa.The discharging of the 4th sand mill enters the pans of 9.1 cubic metres of volumes.Slurry enters the thinning tank of 9.1 cubic metres of volumes then, adds ethylene glycol and is diluted to 20%, enters 30 cubic metres finished product jar through filter.
Check the carbon black stock quality with vacuum filtration behind the sand milling.The stainless steel screen pack of diameter 57mm is the 325x2300 order.600 milliliters of carbon black slurries pass through stainless steel filtering net.
Example 4
The continuous sand milling device of one cover is identical with example 3, and the continuous sanded lines of two parallel connections is arranged, and every sanded lines is made up of four 250L horizontal sealing sand mill polyphones.Difference is that the discharging of first sand mill directly enters second sand mill without centrifugal pump from bypass, the discharging of second sand mill enters the 3rd sand mill through centrifugal pump, and the discharging of the 3rd sand mill directly enters the 4th sand mill without centrifugal pump from bypass.Pressure in first and the 3rd the sealing sand mill approximately is 0.1MPa, and second and the 4th the interior pressure of sealing sand mill approximately are 0.05MPa.
Check stock quality with vacuum filtration behind the sand milling.The stainless steel screen pack of diameter 57mm is the 325x2300 order.800 milliliters of carbon black slurries pass through stainless steel filtering net.
Claims (10)
1. continuous wet-grinding technology and relative device, its continuous wet-grinding system is made up of one or more of continuous wet-grinding lines, described continuous wet-grinding line is by two or more sealing wet milk series of (1) polyphone, (2) there is not continuous non-tight container between the sealing wet milk, what (3) link to each other before first wet milk in the described polyphone wet milk series provides charging and the required pressure of Flow of Goods and Materials and adjusts the positive displacement pump of flow, link to each other before other wet milks in (4) described polyphone wet milk series except first wet milk pressure only is provided but the non-displacement pump that do not change flow is formed.
2. continuously grinding technology as claimed in claim 1, described sealing wet milk are the sealing sand mills, sealant beads grinding machine, sealing pebble plain, ball sealer grinding machine, or sealing grater;
Described positive displacement pump is a measuring pump, reciprocating pump, piston pump, plunger displacement pump, membrane pump, impeller pump, gear pump, screw pump, sliding-vane pump, lobe pump, lobe pump, peristaltic pump, or wherein two or more combinations;
Described non-displacement pump is the dynamics pump, centrifugal pump, magnetic force driven centrifugal pump, Radial pump, mixed flow centrifugal pump, canned motor pump, tubing pump, self priming pump, Non-blinding pump, axial-flow pump, tangent pump, express pump, peripheral pump, turbulence pump, mortar pump, electromagnetic pump, or wherein two or more combinations.
3. continuously grinding technology as claimed in claim 2, wherein said sealing wet milk are sealing sand mill or sealant beads grinding machine; Described positive displacement pump is a membrane pump, gear pump, perhaps screw pump; Described non-displacement pump is centrifugal pump or magnetic force driven centrifugal pump.
4. continuous wet-grinding technology and relative device, its continuous wet-grinding system is made up of one or more of continuous wet-grinding lines, described continuous wet-grinding line is by three or more sealing wet milk series of (1) polyphone, (2) sealing not have the non-tight container that links to each other between the wet milk, and what link to each other before first sealing wet milk in (3) described polyphone wet milk series provides charging and the required pressure of Flow of Goods and Materials and adjust the positive displacement pump composition of flow.
5. continuously grinding technology as claimed in claim 4, described sealing wet milk are the sealing sand mills, sealant beads grinding machine, sealing pebble plain, ball sealer grinding machine, or sealing grater; Described positive displacement pump is a measuring pump, reciprocating pump, piston pump, plunger displacement pump, membrane pump, impeller pump, gear pump, screw pump, sliding-vane pump, lobe pump, lobe pump, peristaltic pump, or wherein two or more combinations.
6. continuously grinding technology as claimed in claim 5, wherein said sealing wet milk are sealing sand mill or sealant beads grinding machine; Described positive displacement pump is a membrane pump, gear pump, perhaps screw pump.
7. continuously grinding technology as claimed in claim 4, other one or more sealing in the described polyphone wet milk series except first sealing wet milk can be selected before the wet milk to link to each other with one or more the non-displacement pump that pressure only is provided but does not change flow;
Described non-displacement pump is the dynamics pump, centrifugal pump, magnetic force driven centrifugal pump, Radial pump, mixed flow centrifugal pump, canned motor pump, tubing pump, self priming pump, Non-blinding pump, axial-flow pump, tangent pump, express pump, peripheral pump, turbulence pump, mortar pump, electromagnetic pump, or wherein two or more combinations.
8. continuously grinding technology as claimed in claim 7, wherein said non-displacement pump is centrifugal pump or magnetic force driven centrifugal pump.
9. polyester, it is made up of carbonyls or its oligomer and glycol institute's repeat units derived and inorganic filler, described carbonyls is HO-R-COOH or R ' OOCACOOR ', wherein A is alkylidene, arlydene, the alkenylene that 2 to 30 carbon atoms are arranged, perhaps both above combinations, each R or R ' are independently selected from the hydrogen in (i), and the hydrogen carboxyl group of carboxyl in terminal (ii) arranged, and perhaps (iii) contain the alkyl of 1 to 30 carbon atom; Described oligomer has 1 to 100 repetitive;
Described inorganic filler is with a kind of continuous wet-grinding technology and relative device production, its continuous wet-grinding system is made up of one or more continuous wet-grinding line, described continuous wet-grinding line is by 2 or more sealing wet milk series of (1) polyphone, (2) there is not the non-tight container between the sealing wet milk, what (3) link to each other before first sealing wet milk in the described polyphone wet milk series provides charging and the required pressure of Flow of Goods and Materials and adjusts the positive displacement pump of flow, can select before other one or more sealing wet milk in (4) described polyphone wet milk series except first sealing wet milk to link to each other pressure only is provided but one or more non-displacement pump of not changing flow is formed; Described inorganic filler is 0.01% to 10% of a described polyester.
10. polyester as claimed in claim 9, wherein said carbonyls is a terephthalic acid (TPA), M-phthalic acid, naphthalenedicarboxylic acid, dimethyl terephthalate (DMT), DMIP, naphthalene diformic acid dimethyl ester, adipic acid; Described glycol is an ethylene glycol, 1, and 2-propane diols, 1, ammediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, diethylene glycol (DEG), polyethylene glycol, or wherein two or more above combination of compounds;
Described inorganic filler is carbon black or titanium dioxide.
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| CNA2008100987906A CN101590440A (en) | 2008-05-29 | 2008-05-29 | Continuous wet-grinding technology and relative device |
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| CNA2008100987906A CN101590440A (en) | 2008-05-29 | 2008-05-29 | Continuous wet-grinding technology and relative device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585592A (en) * | 2012-03-31 | 2012-07-18 | 洋紫荆油墨（河北）有限公司 | Production method and device for offset printing ink |
| CN102728438A (en) * | 2012-06-29 | 2012-10-17 | 宁波金盛纤维科技有限公司 | Method for large-scale preparation of carbon black-ethylene glycol slurry |
| CN103028479A (en) * | 2012-11-08 | 2013-04-10 | 北京泰克来尔科技有限公司 | Multi-stage continuous refiner set and application of the multi-stage continuous refiner set in clean preparation of layer-like composite metal hydroxide |
| CN103586111A (en) * | 2013-11-11 | 2014-02-19 | 宝钢磁业（江苏）有限公司 | System for improving efficiency of wet process sanding, and operating method of same |
| CN105750028A (en) * | 2016-04-08 | 2016-07-13 | 广西壮族自治区建筑材料科学研究设计院 | Anti-blocking discharging device of discharging hole of cement grinding mill |
| CN106000564A (en) * | 2016-04-08 | 2016-10-12 | 广西壮族自治区建筑材料科学研究设计院 | Discharging device for cement grinding mill discharging outlet |
| CN106140407A (en) * | 2015-04-16 | 2016-11-23 | 谢小飞 | A kind of vertical closing mechanical sealing medium Ball-stirring mill |
| CN108368354A (en) * | 2016-01-27 | 2018-08-03 | 克洛诺斯国际有限公司 | It can be by the production of the titanium dioxide pigment for the narrow size distribution that sulfate process obtains |
| CN111196899A (en) * | 2018-11-20 | 2020-05-26 | 江苏金石研磨有限公司 | Superfine grinding preparation process for nano silicon oxide |
| CN112536144A (en) * | 2020-12-17 | 2021-03-23 | 襄阳龙蟒钛业有限公司 | Method for improving titanium dioxide dispersibility and crushing and feeding device thereof |
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2008
- 2008-05-29 CN CNA2008100987906A patent/CN101590440A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102585592A (en) * | 2012-03-31 | 2012-07-18 | 洋紫荆油墨（河北）有限公司 | Production method and device for offset printing ink |
| CN102728438A (en) * | 2012-06-29 | 2012-10-17 | 宁波金盛纤维科技有限公司 | Method for large-scale preparation of carbon black-ethylene glycol slurry |
| CN103028479A (en) * | 2012-11-08 | 2013-04-10 | 北京泰克来尔科技有限公司 | Multi-stage continuous refiner set and application of the multi-stage continuous refiner set in clean preparation of layer-like composite metal hydroxide |
| CN103586111A (en) * | 2013-11-11 | 2014-02-19 | 宝钢磁业（江苏）有限公司 | System for improving efficiency of wet process sanding, and operating method of same |
| CN103586111B (en) * | 2013-11-11 | 2015-05-06 | 宝钢磁业（江苏）有限公司 | System for improving efficiency of wet process sanding, and operating method of same |
| CN106140407A (en) * | 2015-04-16 | 2016-11-23 | 谢小飞 | A kind of vertical closing mechanical sealing medium Ball-stirring mill |
| CN106140407B (en) * | 2015-04-16 | 2019-03-29 | 谢小飞 | The vertical closing of one kind is without mechanical sealing medium Ball-stirring mill |
| CN108368354A (en) * | 2016-01-27 | 2018-08-03 | 克洛诺斯国际有限公司 | It can be by the production of the titanium dioxide pigment for the narrow size distribution that sulfate process obtains |
| CN105750028A (en) * | 2016-04-08 | 2016-07-13 | 广西壮族自治区建筑材料科学研究设计院 | Anti-blocking discharging device of discharging hole of cement grinding mill |
| CN106000564A (en) * | 2016-04-08 | 2016-10-12 | 广西壮族自治区建筑材料科学研究设计院 | Discharging device for cement grinding mill discharging outlet |
| CN111196899A (en) * | 2018-11-20 | 2020-05-26 | 江苏金石研磨有限公司 | Superfine grinding preparation process for nano silicon oxide |
| CN112536144A (en) * | 2020-12-17 | 2021-03-23 | 襄阳龙蟒钛业有限公司 | Method for improving titanium dioxide dispersibility and crushing and feeding device thereof |
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Open date: 20091202 |