CN206396108U - A kind of modified device of magnesium hydroxide - Google Patents
A kind of modified device of magnesium hydroxide Download PDFInfo
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- CN206396108U CN206396108U CN201720061692.XU CN201720061692U CN206396108U CN 206396108 U CN206396108 U CN 206396108U CN 201720061692 U CN201720061692 U CN 201720061692U CN 206396108 U CN206396108 U CN 206396108U
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- modified
- modifying agent
- storehouse
- blade
- magnesium hydroxide
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Abstract
The utility model discloses a kind of modified device of magnesium hydroxide.The modified device includes modified storehouse, modified storehouse drive device, modifying agent flusher, modifying agent metering heating conveyor, powder metering conveying device and modified storehouse heating-cooling device；Modified storehouse heating-cooling device is arranged at the surface in modified storehouse；Modifying agent flusher is located at the inside in modified storehouse；Modified storehouse drive device includes a motor and a motor for controlling modifying agent flusher to rotate for being used to control to be modified storehouse rotation；Modifying agent metering heating conveyor includes metering device I, thermostatical oil bath and the gas atomization device being sequentially connected；Gas atomization device is connected by pipeline A with modifying agent flusher；Powder metering conveying device includes the metering device II and powder transfer device being sequentially connected；Powder transfer device is connected with modified storehouse.The modified magnesium hydroxide covered effect prepared by the modified device is good.
Description
Technical field
The utility model is related to a kind of modified device, more particularly to a kind of modified device of magnesium hydroxide.
Background technology
Magnesium hydroxide is a kind of novel environment friendly filled-type fire retardant, is discharged during by being thermally decomposed and combines water, absorbs big
The latent heat of amount, to reduce the surface temperature of synthetic material that it is filled in flame, is decomposed and to institute with polymer is suppressed
The effect that the fuel gas of generation is cooled down, the magnesia for decomposing generation is good refractory material again, can also help to improve
The fire resistance of synthetic material.Magnesium hydroxide be have in generally acknowledged rubber and plastic industry fire-retardant, suppression cigarette, filling triple functions it is outstanding
Fire retardant.In view of the intrinsic excellent characteristic of magnesium hydroxide, is especially suitable in flame-retardant breathable film as fire retardant and pore former.With
China more and more stricter to building energy conservation environmental requirement, research of each producer to flame-retardant breathable film is increasingly paid attention to.It is domestic
Fire-resistant waterproof ventilation film production process for building is multifarious, and each product quality is uneven, exists with external product larger
Gap, is mainly manifested in：1) tensile strength is low, 2) steam breathability can be poor, and 3) the short easy efflorescence of product service life etc., 4) produce
Product are not fire-retardant not environmentally.Existing magnesium hydroxide on the market is difficult to meet fire-retardant due to the limitation of method of modifying and modified device
The requirement of air film, the covered effect for being mainly manifested in magnesium hydroxide is bad, easily reunites, and the dispersiveness in vistanex is difficult
To ensure, therefore the modified magnesium hydroxide that the suitable flame-retardant breathable film of exploitation is used is just extremely urgent.
Utility model content
The purpose of this utility model is to overcome the shortcoming and deficiency of prior art to be set there is provided a kind of modification of magnesium hydroxide
It is standby.
The purpose of this utility model is achieved through the following technical solutions：A kind of modified device of magnesium hydroxide, includes modification
Storehouse, modified storehouse drive device, modifying agent flusher, modifying agent measure heating conveyor, powder metering conveying device and changed
Property storehouse heating-cooling device；
Described modification storehouse heating-cooling device includes heating tube and cooling liquid pipeline；Heating tube and cooling liquid pipeline
It is alternately disposed at the surface in modified storehouse；So as to by controlling flow rate of liquid or temperature in heating tube and control cooling liquid pipeline
Degree, the temperature in the modified storehouse of control so that material reaches technique initialization temperature in modified storehouse；
Described modifying agent flusher includes some groups of agitating paddles, and agitating paddle is arranged on drive shaft II, positioned at modification
The inside in storehouse；Every group of agitating paddle is made up of two panels blade I and a piece of blade II, and blade I is the blade that tangent plane is circular arc, blade
II is that tangent plane is rectangular blade；Two panels blade I is located at blade II both sides respectively；Modification is internally provided with blade II
Agent spraying pipeline；Flow-stopping plate is set on every blade I；So as to, in the presence of flow-stopping plate, magnesium hydroxide and agitating paddle and gear
The shock that plate produces multiple directions is flowed, is so conducive to opening the small reunion of magnesium hydroxide, is the modifying agent of blade II sprinklings
Magnesium hydroxide surface is uniformly coated on to create conditions；
Described modification storehouse drive device includes a motor for being used to control to be modified storehouse rotation and one changes for control
Property the motor that rotates of agent flusher；For controlling the motor for being modified storehouse rotation to be connected by drive shaft I with modified storehouse, for controlling
The motor that modifying agent flusher processed is rotated is connected by drive shaft II with modifying agent flusher；
Described modifying agent metering heating conveyor includes metering device I, thermostatical oil bath and the gas being sequentially connected
Sprayer unit；Gas atomization device is connected by pipeline A with modifying agent flusher；Modifying agent is quantitatively entered by metering device I
Enter in thermostatical oil bath, be heated to form liquid, the effect of compressed air of the obtained liquid modifying agent in gas atomization device
The lower vaporific modifying agent of generation；
Described powder metering conveying device includes the metering device II and powder transfer device being sequentially connected；Powder conveying
Device is connected with modified storehouse.
The modified device of described magnesium hydroxide also includes control unit, control unit respectively with modified storehouse drive device,
Modifying agent metering heating conveyor, powder metering conveying device and modified storehouse heating-cooling device connection.By control unit,
The heating tube that is modified in the heating-cooling device of storehouse and flow rate of liquid or temperature in cooling liquid pipeline can be controlled, and then is controlled
The temperature in modified storehouse；By control unit, it can adjust for controlling to be modified the motor of storehouse rotation and for controlling modifying agent to spray
Spill rotating speed and the steering of the motor of device rotation；By control unit, powder metering conveying device and modified storehouse can be controlled to add
Apparatus for cooling, and then control the addition of modifying agent and powder and add the time.
Described control unit is preferably computer.
The described preferably cylindrical hollow cylinder in modification storehouse.
The described motor and the described electricity for being used to control modifying agent flusher to rotate that are used to control to be modified storehouse rotation
Machine is preferably variable-frequency motor, can particularly preferably adjust rotating speed and the variable-frequency motor turned to.
Described blade I is connected by its circular arc point of contact with described blade II, centered on tie point, blade I and oar
Leaf II is symmetrical structure.
The block number of described flow-stopping plate is more than 1 piece, preferably 4 pieces.
The outlet of described modifying agent spraying pipeline is preferably arranged on the side for the blade II being connected with blade I, this
When, the outlet of modifying agent spraying pipeline cannot be below blade I height, the i.e. outlet of modifying agent spraying pipeline can not be by blade I
Shelter from completely, so as to be conducive to modifying agent to be sprayed along tangent plane for the direction of the blade of circular arc, and be circular arc by tangent plane
Blade further disperse, modifying agent after spraying out more can uniform fold on the surface of powder.
Described flow-stopping plate be arranged in parallel with drive shaft II.
Described metering device I includes Weight metering device and mass metrology device.
Described pipeline A is arranged on drive shaft II inside.
Described powder transfer device is preferably powder pneumatic conveying device, and more preferably compressed air powder pneumatic is conveyed
Device.
Described metering device II includes Weight metering device and mass metrology device.
Application of the modified device of described magnesium hydroxide in magnesium hydroxide modification.
A kind of method of modifying of magnesium hydroxide, to be realized using the modified device of above-mentioned magnesium hydroxide, is comprised the following steps：
(1) by the following parameter of modified storehouse rotation setting：Modified storehouse and modifying agent measure the temperature of heating conveyor, modified
The addition and addition flow velocity of the rotation parameter in storehouse, magnesium hydroxide and modifying agent；
(2) modified device of described magnesium hydroxide is started；
(3) it is defeated in modifying agent metering heating after modified storehouse and modifying agent metering heating conveyor reach design temperature
Send and modifying agent is added in device, magnesium hydroxide is added in powder metering conveying device；
(4) modified storehouse is passed through magnesium hydroxide in the state of rotation；Meanwhile, formed by modifying agent metering heating conveyor
Vaporific modifying agent also entered in modified storehouse by modifying agent flusher；Magnesium hydroxide rotates in modified storehouse with modified storehouse
And form irregular back and forth movement, the spray of modifying agent flusher under agitating paddle and flow-stopping plate effect in modifying agent flusher
The modifying agent gone out at regular time and quantity be sprayed at magnesium hydroxide surface；
(5) after magnesium hydroxide is added to the modified volume of storehouse 3/4, stop hydrogenation magnesia, continue to add modifying agent at regular time and quantity,
To be modified dose is added to after magnesium hydroxide quality 2%~5%, stops adding modifying agent, continues executing with modified storehouse rotating technics, until
Technique has been performed.
The parameter of described modification storehouse rotating technics is preferably as follows：
1) modified storehouse is started by 500~1000rpm rotating speeds, and modifying agent flusher is opened by rotating speed 300~500rpm rotating speeds
It is dynamic, modified storehouse and the equidirectional rotation of modifying agent flusher；The temperature setting in modified storehouse is at 100~250 DEG C, and modifying agent metering adds
The temperature setting of heat transfer apparatus (i.e. added with metered charge and the thermostatical oil bath of conveying material function) is at 50~300 DEG C；
2) the addition flow velocity of modifying agent is based on 0.5~1kg/h, and the addition flow velocity of magnesium hydroxide is by based on 1~5kg/h；
3) treat that magnesium hydroxide and modifying agent add post-modification storehouse and rotated by 1500~2000rpm of rotating speed, modifying agent sprinkling dress
Put and rotated by 500~800rpm of rotating speed；Modified storehouse and the equidirectional rotation of modifying agent flusher, and with step 1) in direction phase
Together；Rotational time is 10~20 minutes；
4) modified storehouse is rotated by 1500~2000rpm of rotating speed, and modifying agent flusher is rotated by 500~800rpm of rotating speed；
Modified storehouse and the rotation of modifying agent flusher opposite direction；Rotational time is 20~30 minutes.
Step 1) described in rotation preferably rotate in the direction of the clock.
Step 3) described in rotation preferably rotate in the direction of the clock.
Step 4) described in modification storehouse direction of rotation be preferably modifying agent flusher counterclockwise, described rotation
Direction is preferably clockwise.
Described modifying agent is surface modifier, including silane coupler, titanate coupling agent, aluminate coupling agent and hard
Resin acid calcium etc..
The utility model has the following advantages and effect relative to prior art：
1st, the modified device that the utility model is provided obtains the good hydrogen-oxygen of modifying agent covered effect mainly by designing as follows
Change magnesium：
(1) modifying agent metering heating conveyor is optimized, modifying agent is with by oil bath heating and atomization process, shape
Into mist form；
(2) modifying agent flusher is optimized, the spray outlet of modifying agent is arranged on blade, turned at a high speed in blade
In the state of dynamic, further disperseed with the modifying agent that mist form is sprayed out, can preferably be coated on nano-sized magnesium hydroxide
On powder；Stirrer paddle is two kinds, and blade I is different with blade II shape, along with the rotation of modified storehouse in itself, magnesium hydroxide
Powder is acted in modified storehouse by different rotary centrifugal force, so that the inwall motion close to modified storehouse is difficult, moreover, blade
I designs for arc-shaped, is more beneficial for magnesium hydrate powder toward movement in the middle of modified storehouse；Flow-stopping plate, hydroxide are set on blade I
Magnesium produces the shock of multiple directions with agitating paddle and flow-stopping plate, is conducive to opening the small reunion of magnesium hydroxide, is blade II sprays
The modifying agent spilt is uniformly coated on magnesium hydroxide surface and created conditions
2nd, magnesium hydroxide and modifying agent is collided under high shear conditions. based on the method for modifying used in this modified device, change
Clad ratio of the property agent on magnesium hydroxide surface, which has, to be greatly improved.
Brief description of the drawings
The structural representation for the modified device that Fig. 1 provides for the utility model.
Fig. 2 is the structural representation of modified storehouse heating-cooling device.
Fig. 3 is the cross-sectional view of modifying agent flusher.
Wherein, 1- is modified storehouse, 2- and is modified storehouse drive device, 3- modifying agent flusher, 4- modifying agent metering heated transportation
Device, 5- powder meterings conveying device, 6-, which are modified storehouse heating-cooling device, 7- heating tubes, 8- cooling liquids pipeline, 10-, to be used for
Motor, the 11- for controlling modified storehouse to rotate are used for the motor for controlling modifying agent flusher to rotate, the oar that 12- tangent planes are circular arc
Leaf, 13- tangent planes are rectangular blade, 14- modifying agent spraying pipeline, 15- flow-stopping plates, 16- metering devices, 17- constant temperature oil baths
Pot, 18- gas atomization devices.
Embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment 1
A kind of modified device of magnesium hydroxide, as shown in figure 1, including modified storehouse 1, modified storehouse drive device 2, modifying agent spray
Spill device 3, modifying agent metering heating conveyor 4, powder metering conveying device 5 and modified storehouse heating-cooling device 6.Such as Fig. 2
Shown, modified storehouse heating-cooling device 6 includes heating tube 7 and cooling liquid pipeline 8；Heating tube 7 and cooling liquid pipeline 8 replace
It is arranged at the surface in modified storehouse.Modifying agent flusher 3 includes some groups of agitating paddles, and agitating paddle is arranged on drive shaft II, position
Inside in modified storehouse.As shown in figure 3, every group of agitating paddle is rectangular by the blade 12 and a piece of tangent plane that two panels tangent plane is circular arc
The blade 13 of shape is constituted, and two panels blade 12 is located at the both sides of blade 13 respectively；Sprayed in the modifying agent that is internally provided with for cutting blade 13
Pipeline 14 is spilt, modifying agent spray outlet is provided with blade 13；Flow-stopping plate 15 is set on blade 12.Modified storehouse drive device
2 include a motor 10 and a motor 11 for being used to control the rotation of modifying agent flusher for being used to control to be modified storehouse rotation；
Motor 10 is connected by drive shaft I with modified storehouse 1, and motor 11 is connected by drive shaft II with modifying agent flusher 3.Modifying agent
Metering heating conveyor 4 includes metering device 16, thermostatical oil bath 17 and the gas atomization device 18 being sequentially connected；Gas sprays
Mist device 18 is connected by pipeline A with modifying agent flusher 3；Modifying agent quantitatively enters thermostatical oil bath by metering device 16
In 17, liquid is heated to form, obtained liquid modifying agent generates mist in the presence of the compressed air in gas atomization device 18
Shape modifying agent.Powder metering conveying device 5 includes the metering device II and powder transfer device being sequentially connected；Powder transfer device
It is connected with modified storehouse.Powder metering conveying device 5 and modifying agent metering heating conveyor 4 link, and quantitatively add by process ratio
Modifying agent and magnesium hydroxide are into modified storehouse 1.
Specifically, motor 10 and 11 be variable-frequency motor, so as to adjust modified storehouse and modifying agent flusher rotating speed and
Turn to.
Blade 12 is connected by its circular arc point of contact with blade 13, centered on tie point, and blade 12 and blade 13 are pair
Claim structure.
The block number of flow-stopping plate 15 is 4 pieces.
Pipeline A is arranged on drive shaft II inside.
Powder transfer device is compressed air powder pneumatic conveying device.
Embodiment 2
The modified device for the magnesium hydroxide that Application Example 1 is provided is modified to magnesium hydroxide, and step is as follows：
(1) by the following parameter of modified storehouse rotation setting：Modified storehouse and modifying agent measure the temperature of heating conveyor, modified
The addition and addition flow velocity of the rotation parameter in storehouse, magnesium hydroxide and modifying agent；
(2) modified device of described magnesium hydroxide is started；
(3) it is defeated in modifying agent metering heating after modified storehouse and modifying agent metering heating conveyor reach design temperature
Send and modifying agent is added in device, magnesium hydroxide is added in powder metering conveying device；
(4) modified storehouse is passed through magnesium hydroxide in the state of rotation；Meanwhile, formed by modifying agent metering heating conveyor
Vaporific modifying agent also entered in modified storehouse by modifying agent flusher；Magnesium hydroxide rotates in modified storehouse with modified storehouse
And form irregular back and forth movement, the spray of modifying agent flusher under agitating paddle and flow-stopping plate effect in modifying agent flusher
The modifying agent gone out at regular time and quantity be sprayed at magnesium hydroxide surface；
(5) after magnesium hydroxide is added to the modified volume of storehouse 3/4, stop hydrogenation magnesia, continue to add modifying agent at regular time and quantity,
To be modified dose is added to after magnesium hydroxide quality 2%~5%, stops adding modifying agent, continues executing with modified storehouse rotating technics, until
Technique has been performed.
The parameter of described modification storehouse rotating technics is as follows：
1) modified storehouse is started by 800rpm rotating speeds, and modifying agent flusher is started by rotating speed 400rpm rotating speeds, be modified storehouse with
Modifying agent flusher turns clockwise；The temperature setting in modified storehouse measures heating conveyor in 200 DEG C and modifying agent
Temperature setting is 200~250 DEG C；
2) the addition flow velocity of modifying agent calcium stearate is based on 0.8kg/h, and the addition flow velocity of magnesium hydroxide is based on 2.5kg/h；
3) treat that magnesium hydroxide and modifying agent add post-modification storehouse and rotated by rotating speed 1800rpm, modifying agent flusher, which is pressed, to be turned
Fast 650rpm rotations；Modified storehouse and modifying agent flusher turn clockwise；Rotational time is 10~20 minutes；
4) rotating speed 1800rpm rotate counterclockwises are pressed in modified storehouse, and modifying agent flusher turns clockwise by rotating speed 650rpm；
Rotational time is 20~30 minutes.
Modified magnesium hydroxide is granulated by polyolefin blend and prepares flame-retardant breathable film, flame-retardant breathable film base through casting machine
Weight is 40g/m2, before modified after a diameter of more than 0.1mm white points number (taking 20 films to average) on every square metre it is right
Than as shown in table 1：
Table 1
It can be seen that, the modified magnesium hydroxide covered effect obtained by the modified device is good, meets the requirement of flame-retardant breathable film,
Effect can match in excellence or beauty with external product.
Above-described embodiment is the utility model preferably embodiment, but embodiment of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, are included within protection domain of the present utility model.
Claims (10)
1. a kind of modified device of magnesium hydroxide, it is characterised in that include modified storehouse, modified storehouse drive device, modifying agent sprinkling dress
Put, modifying agent metering heating conveyor, powder metering conveying device and modified storehouse heating-cooling device；
Modified storehouse is cylindrical, hollow cylinder；
Modified storehouse heating-cooling device includes heating tube and cooling liquid pipeline；Heating tube and cooling liquid pipeline are alternately disposed at
The surface in modified storehouse；
Modifying agent flusher includes some groups of agitating paddles, and agitating paddle is arranged on drive shaft II, the inside positioned at modified storehouse；Often
Group agitating paddle is made up of two panels blade I and a piece of blade II, and blade I is the blade that tangent plane is circular arc, and blade II is that tangent plane is
Rectangular blade；Two panels blade I is located at blade II both sides respectively；Modifying agent spray line is internally provided with blade II
Road；Flow-stopping plate is set on every blade I；
Modified storehouse drive device, which includes a motor for being used to controlling being modified storehouse rotation and one, to be used to control modifying agent sprinkling dress
Put the motor of rotation；For controlling the motor for being modified storehouse rotation to be connected by drive shaft I with modified storehouse, for controlling modifying agent to spray
The motor for spilling device rotation is connected by drive shaft II with modifying agent flusher；
Modifying agent metering heating conveyor includes metering device I, thermostatical oil bath and the gas atomization device being sequentially connected；Gas
Spray body device is connected by pipeline A with modifying agent flusher；
Powder metering conveying device includes the metering device II and powder transfer device being sequentially connected；Powder transfer device and modification
Storehouse is connected.
2. the modified device of magnesium hydroxide according to claim 1, it is characterised in that：Also include control unit；Control is single
Member is cold with modified storehouse drive device, modifying agent metering heating conveyor, powder metering conveying device and modified storehouse heating respectively
But device is connected.
3. the modified device of magnesium hydroxide according to claim 2, it is characterised in that：Described control unit is calculating
Machine.
4. the modified device of magnesium hydroxide according to claim 1, it is characterised in that：It is described be used to controlling being modified storehouse turn
Dynamic motor is variable-frequency motor.
5. the modified device of magnesium hydroxide according to claim 1, it is characterised in that：It is described to be used to control modifying agent to spray
The motor for spilling device rotation is variable-frequency motor.
6. the modified device of magnesium hydroxide according to claim 1, it is characterised in that：Described blade I passes through its circular arc
Point of contact is connected with described blade II, centered on tie point, and blade I and blade II are symmetrical structure.
7. the modified device of magnesium hydroxide according to claim 1, it is characterised in that：Described modifying agent spraying pipeline
Outlet is arranged on the side for the blade II being connected with blade I, and can not completely be sheltered from by blade I.
8. the modified device of magnesium hydroxide according to claim 1, it is characterised in that：The block number of described flow-stopping plate is 4
Block；
Described flow-stopping plate be arranged in parallel with drive shaft II.
9. the modified device of magnesium hydroxide according to claim 1, it is characterised in that：
Described metering device I includes Weight metering device and mass metrology device；
Described metering device II includes Weight metering device and mass metrology device.
10. the modified device of magnesium hydroxide according to claim 1, it is characterised in that：
Described powder transfer device is powder pneumatic conveying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720061692.XU CN206396108U (en) | 2017-01-18 | 2017-01-18 | A kind of modified device of magnesium hydroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720061692.XU CN206396108U (en) | 2017-01-18 | 2017-01-18 | A kind of modified device of magnesium hydroxide |
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| Publication Number | Publication Date |
|---|---|
| CN206396108U true CN206396108U (en) | 2017-08-11 |
Family
ID=59518968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720061692.XU Active CN206396108U (en) | 2017-01-18 | 2017-01-18 | A kind of modified device of magnesium hydroxide |
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| Country | Link |
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| CN (1) | CN206396108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752107A (en) * | 2017-01-18 | 2017-05-31 | 广州市合诚化学有限公司 | The modified device and method of modifying of a kind of magnesium hydroxide |
-
2017
- 2017-01-18 CN CN201720061692.XU patent/CN206396108U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752107A (en) * | 2017-01-18 | 2017-05-31 | 广州市合诚化学有限公司 | The modified device and method of modifying of a kind of magnesium hydroxide |
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Address after: 510623 603-604, Guangsheng international building, 17 Zhujiang West Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Hecheng Technology Co.,Ltd. Address before: 510530 603-604, Guangsheng international building, 17 Zhujiang West Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU HONSEA CHEMISTRY Co.,Ltd. |