CN103657804A - Horizontal type stirring ball-milling reactor for intensifying bentonite modification - Google Patents

Horizontal type stirring ball-milling reactor for intensifying bentonite modification Download PDF

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Publication number
CN103657804A
CN103657804A CN201310597143.0A CN201310597143A CN103657804A CN 103657804 A CN103657804 A CN 103657804A CN 201310597143 A CN201310597143 A CN 201310597143A CN 103657804 A CN103657804 A CN 103657804A
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China
Prior art keywords
ball
milling
cylinder
stirrer paddle
shaft
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Pending
Application number
CN201310597143.0A
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Chinese (zh)
Inventor
黄科林
黄祖强
吴睿
谢清若
胡华宇
陶靖
覃宇奔
阮付贤
甘激文
李克贤
彭小玉
王则奋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGZUO JINGANG MINING Co Ltd
Guangxi Branch Of China Science & Technology Development Inst
Guangxi University
Original Assignee
CHONGZUO JINGANG MINING Co Ltd
Guangxi Branch Of China Science & Technology Development Inst
Guangxi University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by CHONGZUO JINGANG MINING Co Ltd, Guangxi Branch Of China Science & Technology Development Inst, Guangxi University filed Critical CHONGZUO JINGANG MINING Co Ltd
Priority to CN201310597143.0A priority Critical patent/CN103657804A/en
Publication of CN103657804A publication Critical patent/CN103657804A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a horizontal type stirring ball-milling reactor for intensifying bentonite modification, and provides a ball mill which is uniform in material blending, has no stirring dead angle and controllable ball-milling temperature, can add materials at any time, and is high in ball-milling efficiency and used for intensifying bentonite modification. According to the invention, the main body structurally comprises a bracket, a stirring shaft mounted on the bracket, a stirring device mounted on the stirring shaft and composed of plough disc stirring blades and S-shaped stirring blades, and a ball-milling cylinder; the S-shaped stirring blades are mounted on the adjacent two groups of plough disc stirring blades; the stirring shaft is connected with a motor through a belt; the ball-milling cylinder comprises two layers of an outer cylinder and an inner cylinder; a cooling liquid flow leading channel is formed between the outer cylinder and the inner cylinder; the outer cylinder is provided with a coolant inlet pipe, a feed opening, a discharge opening and a coolant return pipe; the coolant inlet pipe and the coolant return pipe are respectively connected with a coolant inlet pipeline and a coolant return pipeline of a cooling system; milling balls are arranged in the ball-milling cylinder. The reactor can be used for polysaccharide superpolymer modification.

Description

The bentonite modified stirring ball-milling reaction device of a kind of horizontal strengthening
Technical field
The present invention relates to a kind of powder process equipment, particularly a kind of ball mill, can be used for powder ball milling, also can be used for solid-solid phase reaction or liquid-solid phase reaction, as for strengthening bentonite modified reactor.
Background technology
Bentonite is abundant at world saving, is widely distributed.Find out at present 10,000,000,000 tons of reserves nearly, according to statistics, calcium-base bentonite accounts for 70%-80% of International Geology reserves, and the sodium bentonite resource of high-quality is very limited.China's bentonite reserves are only second to the U.S., occupy second place of the world, and in world's montmorillonite resource distribution, ca-montmorillonite accounts for 70%-80%, and natural sodium bentonite content is but very little, 500,000,000 tons of reserves less thaies.China's montmorillonite 90% is ca-montmorillonite, because alkali metal ion has better hydrating capacity than calcium ion, thereby alkali metal base bentonite is compared with calcium-base bentonite, there is the series of advantages such as dispersiveness, colloid index, viscosity, lubricity, heat endurance and higher thixotropy, hot green compression strength and dry-pressing intensity in better dilatancy, cation exchange, aqueous medium, its application is more extensive, and price is also relatively high.Thereby the modification of calcium-base bentonite is had great significance.
Method of modifying for natural calcium base bentonite mainly contains at present: suspension method, in slurry, in water, add calcium base soil and sodium agent, and long-time prehydration, makes more Ca2+ and Mg2+ out replaced; Stockyard sodium method, in raw ore stockyard, is sprinkling upon water content by sodium agent powder and is greater than in 30% swelling in raw ore, stirs mix, and mixing rolls, and aging 10 days, is then dried and crushed into product; Extrusion, comprises rolling extrusion, double helix extrusion, choked flow extrusion, pair roller extrusion etc.The effect of delaminating is played in extruding, makes between montmorillonite particle, intergranule produces relative motion and separation, thereby has increased the contact area with Na+, is easy to carry out sufficient ion-exchange; All there are a lot of deficiencies in these methods, although for example stockyard sodium is simple to operate, the production cycle is long, sodium weak effect; Though suspension method sodium is effective, process water consumption is large, production performance difficulty, and discharges addle contaminated environment; Extruding sodium is high to equipment requirement, and ion-exchange is insufficient; Mechanical activation (Mechanical Activation) refers to that solid particulate matter is under the mechanical force such as friction, collision, impact, shearing, crystal structure and physical and chemical performance are changed, make part mechanical energy be transformed into the interior energy of material, thereby cause that the chemism of solid increases.
Ball mill is widely used in cement, silicate product, and the production industries such as New Building Materials, refractory material, chemical fertilizer, black and non-ferrous metal ore and glass ceramics, carry out dry type or wet type grinding to various ores and other grindability material.When ball mill barrel rotates, abrasive body, due to inertia and centrifugal action, makes by cylindrical shell, to be taken away near the shell liner of its note, when being brought to certain height, due to the Action of Gravity Field of itself, left, the abrasive body of whereabouts is smashed the material in cylindrical shell as projectile.Therefore ball mill can be used as bentonite modified equipment.
But adopt traditional ball mill as reactor mixing bentonite material, there will be material to be bonded at ball grinding cylinder bottom, can not fully mix, affect mixing efficiency; The localized hyperthermia producing during ball milling, causes reaction temperature inhomogeneous, affects the quality of product, and therefore, traditional ball mill cannot meet the bentonite modified requirement of strengthening.
At present, we retrieve the open source literature of following ball mills, for example:
1. China Patent Publication No. CN02211632.X, open day on March 5th, 2003, this application case discloses a kind of stirring ball mill, comprise cylinder body, cooling jacket, shaft, stirring rod, the cylinder body of dress ball and powder can be by pulling turn disc, after rotation, with alignment pin, fix, rotational angle can reach 180 degree, has overcome the shortcoming of the cylinder body bottom caking of traditional ball mill.Its weak point is that cylinder body two ends are not provided with arc plate, has dead angle to exist; Gapped between stirring rod and inner tube wall, material as sticking in ball milling, partial material can not fully stir; Cylinder body after rotation, some position inconvenience charging at any time.
2. China Patent Publication No. CN200920106322.9, open day on January 13rd, 2010, this application case discloses the ball mill for the preparation of nano composite oxide, comprise ball grinding cylinder, motor, transmission device, mill ball, material import and export, support, ball grinding cylinder tank body is with cooling jacket, realize grinding temperature relatively low, effectively prevented the coking of material, the growth of crystallite dimension.Its weak point is: ball milling cylinder body bottom is 0~30 degree along axis, and solid accumulation is in bottom, gapped between stirring rod and inner tube wall, is unfavorable for the abundant stirring of material.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide a kind of mixing of materials evenly, without stir dead angle, ball milling temperature controlled, can increase at any time material, grinding efficiency high for strengthening bentonite modified ball mill.
For achieving the above object, the present invention is achieved by the following scheme:
The bentonite modified stirring ball-milling reaction device of a kind of horizontal strengthening, agent structure comprises support, rack-mount shaft, be arranged on the ball grinding cylinder on shaft, be placed in the mill ball in ball grinding cylinder, described ball grinding cylinder divide urceolus and inner core two-layer, between urceolus and inner core, be provided with dividing plate, dividing plate is provided with the aperture for cooling fluid circulation, between urceolus and inner core, form cooling fluid honeycomb duct, described urceolus is provided with cooling agent inlet pipe, charging aperture, discharging opening and cooling agent return pipe, described cooling agent inlet pipe is connected with time coolant line with the coolant line of entering of cooling system respectively with cooling agent return pipe, described inner core two ends are respectively provided with arc plate, described shaft is connected with motor by belt, described shaft is provided with the agitating device being comprised of plough sheet stirrer paddle and S type stirrer paddle, described S type stirrer paddle is arranged on two groups of adjacent plough sheet stirrer paddles.
Be improved further: described plough sheet stirrer paddle is equidistantly installed.
Be improved further: the two ends of described S type stirrer paddle have slotted hole, the slotted hole of described S type stirrer paddle is arranged on by screw on U-shaped of plough sheet stirrer paddle.
Be improved further: described S type stirrer paddle is in installation quantity >=1 of two groups of adjacent plough sheet stirrer paddles.
Be improved further: described shaft is hollow structure, two ends are respectively equipped with anticlockwise joint and right rotation joint, and described anticlockwise joint is connected with time coolant line with the coolant line of entering of cooling system respectively with right rotation joint.
Operation principle of the present invention:
Connect cooling system, cooling agent enters by urceolus from cooling agent inlet pipe, between inner core and dividing plate, form cooling fluid honeycomb duct, from cooling agent return pipe, flow back to cooling system, bentonite and reactant add ball grinding cylinder from charging aperture, motor drive is stirred axle and is put High Rotation Speed, motor is by belt drives shaft and the agitating device High Rotation Speed being comprised of plough sheet stirrer paddle and S type stirrer paddle on shaft is installed, agitating device drives mill ball to move together with material, lean between mill ball and the shock between mill ball and ball grinding cylinder, material is pulverized to processing, simultaneously under the effect of centrifugal force, U-shaped that can radially wobble outwards swings, make to plough sheet and be tightly close to ball grinding cylinder inwall, being bonded at material on inwall is ploughed sheet and is scraped off, the heat that mechanical milling process produces is taken away by the cooling agent in the hollow structure of ball grinding cylinder and shaft, reduced the temperature fluctuation of ball grinding cylinder, be conducive to realize constant temperature ball milling, after ball milling completes, ball grinding cylinder dextrorotation is turn 90 degrees, synthetic material is just by discharge hole for discharge.
Compared with prior art, the present invention has following beneficial effect:
Mixing of materials evenly, without dead angle.Plough sheet on agitating device is close to inner tube wall under the effect of centrifugal force, without stirring dead angle, guarantees that all materials can fully stir.
2. ball milling temperature is controlled.By constant temperature system, control reaction temperature, guarantee that mechanical milling process carries out in constant temperature, suppress the reaction of material generation thermal sensitivity.
3. conveniently increase at any time material.In course of reaction, can add at any time reaction reagent, and can fully mix with raw material.
4. grinding efficiency is high.Shaft is provided with the agitating device being comprised of plough sheet stirrer paddle and S type stirrer paddle, has increased the acting area of agitating device, and agitating device is better to the induced effect of mill ball, and favourable raising grinding efficiency reduces Ball-milling Time, realizes optimum condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bentonite modified stirring ball-milling reaction device of the horizontal strengthening of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the schematic diagram of the S type stirrer paddle end slotted hole of the bentonite modified stirring ball-milling reaction device of the horizontal strengthening of the present invention.
Parts title and sequence number in figure:
Support 1, shaft 2, ball grinding cylinder 3, cooling agent inlet pipe 4, plough sheet stirrer paddle 5, mill ball 6, charging aperture 7, dividing plate 8, cooling agent return pipe 9, arc plate 10, anticlockwise joint 11, motor 12, S type stirrer paddle 13, right rotation joint 14, discharging opening 15, screw 16, slotted hole 17.
The specific embodiment
Below in conjunction with drawings and Examples, the bentonite modified stirring ball-milling reaction device of the horizontal strengthening of the present invention is described.
Embodiment 1:
As Fig. 1, shown in Fig. 2, the pipeline of cooling system is prior art, not shown in FIG., agent structure of the present invention comprises support 1, be arranged on the shaft 2 on support 1, be arranged on the ball grinding cylinder 3 on shaft 2, be placed in the mill ball 6 in ball grinding cylinder 3, 3 minutes urceolus of ball grinding cylinder and inner core are two-layer, between urceolus and inner core, be provided with dividing plate 8, dividing plate 8 is provided with the aperture for cooling fluid circulation, between urceolus and inner core, form cooling fluid honeycomb duct, described urceolus is provided with cooling agent inlet pipe 4, charging aperture 7, discharging opening 15 and cooling agent return pipe 9, cooling agent inlet pipe 4 is connected with time coolant line with the coolant line of entering of cooling system respectively with cooling agent return pipe 9, inner core two ends are respectively provided with arc plate 10, shaft 2 is connected with motor 12 by belt, shaft 2 is provided with the agitating device being comprised of plough sheet stirrer paddle 5 and S type stirrer paddle 13, S type stirrer paddle 13 is arranged on two groups of adjacent plough sheet stirrer paddles 5, S type stirrer paddle 13 is 1 in the quantity of two groups of adjacent plough sheet stirrer paddles 5.
In the present embodiment, the mixed material of bentonite and reactant enters in ball grinding cylinder 3 from charging aperture 7, connect cooling system, cooling agent enters by urceolus from cooling agent inlet pipe 4, between inner core and dividing plate 8, form cooling fluid honeycomb duct, from cooling agent return pipe 9, flow back to cooling system, motor is by belt drives shaft 2 and the agitating device High Rotation Speed being comprised of plough sheet stirrer paddle 5 and S type stirrer paddle 13 on shaft 2 is installed, agitating device drives mill ball 6 to move together with material, lean between mill ball 6 and the shock between mill ball 6 and ball grinding cylinder 3, material is pulverized to processing, simultaneously under the effect of centrifugal force, U-shaped that can radially wobble outwards swings, make to plough sheet and be tightly close to ball grinding cylinder 3 inwalls, being bonded at material on inwall is ploughed sheet and is scraped off, the heat that mechanical milling process produces is taken away by cooling agent, be conducive to realize constant temperature ball milling, after ball milling completes, ball grinding cylinder 3 dextrorotations are turn 90 degrees, synthetic material is just by discharging opening 15 dischargings, viscous material is entered to bulk testing, and through 2 hours, ball grinding cylinder 3 inwalls were not stained with material.
Embodiment 2:
As shown in Figure 3, difference from Example 1 is: plough sheet stirrer paddle 5 is equidistantly installed, the two ends of S type stirrer paddle 13 have slotted hole 17, it is upper that S type stirrer paddle 13 is arranged on U-shaped of plough sheet stirrer paddle 5 by slotted hole 17 and screw 16, and S type stirrer paddle 13 is 2 in the installation quantity of two groups of adjacent plough sheet stirrer paddles 5.
In the present embodiment, with respect to embodiment 1, it is 2 that the S type stirrer paddle 13 of two groups of adjacent plough sheet stirrer paddles 5 is installed quantity, has increased the acting area of agitating device, and agitating device is better to the induced effect of mill ball 6, favourable raising grinding efficiency, reduce Ball-milling Time, viscous material is entered to bulk testing simultaneously, during stirring, add reaction reagent, through 2 hours, ball grinding cylinder 3 inwalls and arc plate place were not stained with material.
Embodiment 3:
Be with embodiment 1 or 2 differences: shaft 2 is hollow structure, and two ends are respectively equipped with anticlockwise joint 11 and right rotation joint 14, anticlockwise joint 11 is connected with time coolant line with the coolant line of entering of cooling system respectively with right rotation joint 14.
In the present embodiment, cooling agent enters in shaft 2 hollow structures by swivel joint 11, from swivel joint 14, gets back to cooling system, makes shaft 2 keep low temperature, has reduced the temperature fluctuation of ball grinding cylinder 3, is conducive to realize constant temperature ball milling.

Claims (5)

1. the bentonite modified stirring ball-milling reaction device of horizontal strengthening, agent structure comprises support (1), be arranged on the shaft (2) on support (1), be arranged on the ball grinding cylinder (3) on shaft (2), be placed in the mill ball (6) in ball grinding cylinder (3), described ball grinding cylinder (3) minute urceolus and inner core are two-layer, between urceolus and inner core, be provided with dividing plate (8), dividing plate (8) is provided with the aperture for cooling fluid circulation, between urceolus and inner core, form cooling fluid honeycomb duct, described urceolus is provided with cooling agent inlet pipe (4), charging aperture (7), discharging opening (15) and cooling agent return pipe (9), described cooling agent inlet pipe (4) is connected with time coolant line with the coolant line of entering of cooling system respectively with cooling agent return pipe (9), described inner core two ends are respectively provided with arc plate (10), described shaft (2) is connected with motor (12) by belt, it is characterized in that: described shaft (2) is provided with the agitating device being comprised of plough sheet stirrer paddle (5) and S type stirrer paddle (13), described S type stirrer paddle (13) is arranged on adjacent two groups of plough sheet stirrer paddles (5).
2. the bentonite modified stirring ball-milling reaction device of horizontal strengthening according to claim 1, is characterized in that: described plough sheet stirrer paddle (5) is equidistantly installed.
3. the bentonite modified stirring ball-milling reaction device of horizontal strengthening according to claim 1 and 2, it is characterized in that: the two ends of described S type stirrer paddle (13) have slotted hole (17), the slotted hole (17) of described S type stirrer paddle (13) is arranged on plough sheet stirrer paddle (5) U-shaped by screw (16).
4. the bentonite modified stirring ball-milling reaction device of horizontal strengthening according to claim 3, is characterized in that: described S type stirrer paddle (13) is in installation quantity >=1 of adjacent two groups of plough sheet stirrer paddles (5).
5. according to the bentonite modified stirring ball-milling reaction device of the horizontal strengthening described in claim 1 or 4, it is characterized in that: described shaft (2) is hollow structure, two ends are respectively equipped with anticlockwise joint (11) and right rotation joint (14), and described anticlockwise joint (11) is connected with time coolant line with the coolant line of entering of cooling system respectively with right rotation joint (14).
CN201310597143.0A 2013-11-22 2013-11-22 Horizontal type stirring ball-milling reactor for intensifying bentonite modification Pending CN103657804A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104229401A (en) * 2014-08-22 2014-12-24 北方重工集团有限公司 Continuous horizontal type strong blending machine
CN105855021A (en) * 2016-05-30 2016-08-17 浙江红宇新材料股份有限公司 Smashing processing device for bentonite
CN106345578A (en) * 2016-08-30 2017-01-25 重庆科技学院 Constant-temperature ball milling tank
CN107098355A (en) * 2017-05-08 2017-08-29 塔里木大学 A kind of quick stripping means of expanded vermiculite
CN109173970A (en) * 2018-08-16 2019-01-11 李东坡 A kind of oscillating-type reaction kettle
CN110255574A (en) * 2019-06-14 2019-09-20 安吉县宇宏粘土化工有限公司 A kind of bentonite processing method
CN110801911A (en) * 2019-11-18 2020-02-18 湖南绿生科技发展有限公司 Slag grinder for light insulating brick

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CN201279445Y (en) * 2008-10-15 2009-07-29 江苏德美科技有限公司 Eddy powder mixer
CN201380099Y (en) * 2009-03-04 2010-01-13 北京化工大学 Ball mill for preparing nanometer composite oxides
CN201949837U (en) * 2011-01-13 2011-08-31 上海明辉化工有限公司 Horizontal type mixing machine
CN202052487U (en) * 2011-03-11 2011-11-30 通海县福慧科技有限公司 Organic fertilizer turning mixer
CN102921512A (en) * 2012-11-16 2013-02-13 广西大学 Horizontal reinforced polysaccharide polymer modification agitating ball mill reactor
CN102935350A (en) * 2012-11-14 2013-02-20 广西大学 Vertical modified stir ball-milling reactor for reinforcing polysaccharide polymers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2354646Y (en) * 1997-12-15 1999-12-22 南通罗斯混合设备有限公司 Ribbon stirrer
JP2003190828A (en) * 2001-12-24 2003-07-08 Maschinenfabrik Gustav Eirich Gmbh & Co Kg Agitator mill
CN2538426Y (en) * 2002-05-10 2003-03-05 中国科学院金属研究所 Stirring type ball mill
CN101091934A (en) * 2006-06-19 2007-12-26 李凌峰 Internal water-cooling ball mill, and ball mill method
CN201279445Y (en) * 2008-10-15 2009-07-29 江苏德美科技有限公司 Eddy powder mixer
CN201380099Y (en) * 2009-03-04 2010-01-13 北京化工大学 Ball mill for preparing nanometer composite oxides
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CN202052487U (en) * 2011-03-11 2011-11-30 通海县福慧科技有限公司 Organic fertilizer turning mixer
CN102935350A (en) * 2012-11-14 2013-02-20 广西大学 Vertical modified stir ball-milling reactor for reinforcing polysaccharide polymers
CN102921512A (en) * 2012-11-16 2013-02-13 广西大学 Horizontal reinforced polysaccharide polymer modification agitating ball mill reactor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104229401A (en) * 2014-08-22 2014-12-24 北方重工集团有限公司 Continuous horizontal type strong blending machine
CN105855021A (en) * 2016-05-30 2016-08-17 浙江红宇新材料股份有限公司 Smashing processing device for bentonite
CN105855021B (en) * 2016-05-30 2018-02-02 浙江红宇新材料股份有限公司 A kind of bentonite grinding processing equipment
CN106345578A (en) * 2016-08-30 2017-01-25 重庆科技学院 Constant-temperature ball milling tank
CN107098355A (en) * 2017-05-08 2017-08-29 塔里木大学 A kind of quick stripping means of expanded vermiculite
CN109173970A (en) * 2018-08-16 2019-01-11 李东坡 A kind of oscillating-type reaction kettle
CN110255574A (en) * 2019-06-14 2019-09-20 安吉县宇宏粘土化工有限公司 A kind of bentonite processing method
CN110801911A (en) * 2019-11-18 2020-02-18 湖南绿生科技发展有限公司 Slag grinder for light insulating brick

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