CN212916040U - Preparation system of modified talc for high temperature resistant coating - Google Patents

Preparation system of modified talc for high temperature resistant coating Download PDF

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CN212916040U
CN212916040U CN202021125413.XU CN202021125413U CN212916040U CN 212916040 U CN212916040 U CN 212916040U CN 202021125413 U CN202021125413 U CN 202021125413U CN 212916040 U CN212916040 U CN 212916040U
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talc
rotary
infrared
unit
cylinder
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李文祥
杨升旗
李晓东
李艳娇
贾宇
李阿秀
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LIAONING AIHAI TALC CO Ltd
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LIAONING AIHAI TALC CO Ltd
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Abstract

The utility model relates to a preparation system of modified talcum for high temperature resistant coating, which comprises a talcum material block crushing unit, an infrared identification unit, a wetting separation unit, a primary powder grinding unit, a primary powder blending modification unit and a paint slurry forming granulation unit; the utility model realizes the continuous operation of purification upgrading, grinding powder making, blending modification and granulation operation of low-grade talcum blocks, not only improves the sorting efficiency of the talcum, but also ensures the high purity and stable quality of the primary powder; the enamel powder, the primary powder and the KH550 are mixed and granulated, so that the homogenization performance of the talcum powder product is optimized, the dust pollution in the production process of the high-temperature-resistant coating is reduced, the paint preparation dispersion efficiency and the high-temperature resistance of the product are improved, and the transportation cost is reduced.

Description

Preparation system of modified talc for high temperature resistant coating
Technical Field
The utility model relates to a talcum production technical field especially relates to a preparation system of modified talcum for high temperature resistant coating.
Background
Currently, talc products for producing high temperature resistant coatings generally have the problems of low talc purity, poor fineness matching with other components and poor homogenization. These problems cause the decrease of heat resistance of the high temperature resistant coating in the using process, namely, the phenomena of local skin explosion, cracking, interlayer peeling and the like appear in the coating layer too early, the protective effect of the coating layer on the base material is lost, and the service life of the base material is reduced. In addition, the prior talcum product for producing the high-temperature resistant coating is not easy to store and transport, and has the problems of dust pollution, difficult dispersion and the like in the production process of the high-temperature resistant coating.
Disclosure of Invention
The utility model provides a preparation system of modified talc for high temperature resistant coating, which realizes the continuous operation of purification upgrading, grinding powder making, blending modification and granulation operation of low-grade talc lump materials, improves the separation efficiency of talc, and ensures the high purity and stable quality of primary powder; the enamel powder, the primary powder and the KH550 are mixed and granulated, so that the homogenization performance of the talcum powder product is optimized, the dust pollution in the production process of the high-temperature-resistant coating is reduced, the paint preparation dispersion efficiency and the high-temperature resistance of the product are improved, and the transportation cost is reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a preparation system of modified talc for high temperature resistant coating comprises a talc block crushing unit, an infrared identification unit, a wetting separation unit, a primary powder grinding unit, a primary powder blending modification unit and a paint slurry forming granulation unit; the talc material block crushing unit is provided with a crusher, a material sieve and a granule conveying belt; the infrared identification unit is provided with an infrared monitoring emission probe, an infrared receiving feedback probe and a compressed air nozzle; the wetting separation unit is provided with a rotary separation cylinder, a rubber elastic sweeping plate and a spray header; the primary powder grinding unit is provided with a Raymond mill; the primary powder blending modification unit is provided with a primary powder storage tank, a KH550 aqueous solution storage tank, a milky enamel powder storage tank and a blending tank; the paint slurry forming and granulating unit is provided with a spiral propeller; the material sieve is arranged below the discharge port of the crusher, and the oversize material discharge port of the material sieve is connected with the feeding port of the rotary separation cylinder; the infrared identification unit is arranged between the discharge port of the oversize material and the feed inlet of the rotary separation drum, the infrared monitoring emission probe and the infrared receiving feedback probe are matched with each other to identify the talc, and the infrared monitoring emission probe, the infrared receiving feedback probe and the compressed air nozzle are controlled in an interlocking manner through a computer; one end of the feed port of the rotary separation cylinder is higher than one end of the discharge port and is obliquely arranged, and the rotary separation cylinder performs rotary motion around the axis of the rotary separation cylinder; the rotary separating cylinder is internally provided with a rubber elastic sweeping plate and a spray header, the rubber elastic sweeping plate is arranged at the lower part of the rotary separating cylinder, and the spray header is arranged above the rubber elastic sweeping plate; the discharge hole of the rotary separation cylinder is connected with the feed inlet of the Raymond mill, and the discharge hole of the Raymond mill is connected with the feed inlet of the primary powder storage tank; the discharge port of the primary powder storage tank, the discharge port of the KH550 aqueous solution storage tank and the discharge port of the opal enamel powder storage tank are respectively connected with corresponding feed ports on the blending tank; the discharge port of the blending tank is connected with the feed port of the spiral propeller, and one end of the discharge port of the spiral propeller is provided with a granulation template.
The talc material block crushing unit comprises a crusher, a material sieve, a slag material conveying belt and a granule material conveying belt; the material screen has material outlet connected to the material inlet of the rotary separating cylinder via the granular material conveying belt and slag conveying belt below the material screen.
The crusher is a jaw crusher.
The material sieve is a vibrating sieve.
The infrared identification unit comprises a talc guide plate, an infrared monitoring and transmitting probe, an infrared receiving and feedback probe, a compressed air nozzle and a computer; one end of the talc guide plate is arranged at the discharging end of the granule conveyor belt, and the other end of the talc guide plate is connected with a feeding hole of the rotary separating cylinder; the infrared monitoring emission probe is arranged at the bottom of the talc guide plate, the infrared receiving feedback probe and the infrared monitoring emission probe are oppositely arranged, and the connecting lines of the detection ends of the 2 probes pass through a material initial falling point of the granular material conveyor belt; the compressed air nozzle is arranged above the granule conveyor belt, and the compressed air injection direction of the compressed air nozzle passes through the material falling path and faces to the upper part of the talc guide plate.
The wetting separation unit comprises a rotary separation cylinder, a rubber elastic sweeping plate and a spray header; the inclination angle of the rotary separation cylinder is 8-12 degrees; the rubber elastic sweeping plate consists of an eccentric shaft and a plurality of rubber blades arranged along the axial direction of the eccentric shaft, and the eccentric shaft deviates downwards and to one side relative to the axis of the rotary separating cylinder; the rubber elastic sweeping plate rotates around the axis of the eccentric shaft, the rotating speed of the rubber elastic sweeping plate is greater than that of the rotary separating cylinder, and the rotating direction of the rubber elastic sweeping plate is the same as that of the rotary separating cylinder; the rubber blade is contacted with the cylinder wall of the rotary separation cylinder along the tangential direction at one side rotating upwards and is not contacted with the cylinder wall of the rotary separation cylinder at one side rotating downwards; the spray header is fixed, and a plurality of spray holes are formed in the two sides of the spray header, which face the inner wall of the rotary separation cylinder, along the axis direction of the rotary separation cylinder.
And one end of the discharge port of the rotary separation cylinder is provided with a sundry stone discharge chute corresponding to the height of the eccentric shaft of the rubber elastic sweeping plate.
The primary powder grinding unit comprises a Raymond mill bin and a Raymond mill; the Raymond mill bin is arranged below a discharge port of the rotary separation cylinder, the bottom of the Raymond mill bin is connected with a feed port at the bottom of the Raymond mill through a discharging chute, and a discharge port at the top of the Raymond mill is connected with a primary powder storage tank through a pneumatic conveying pipeline.
And a stirring device is arranged in the blending tank.
The paint slurry forming and granulating unit comprises a spiral propeller, an infrared drying and transporting guide chain and a weight checking and packaging system; the infrared drying transportation guide chain is arranged between the discharge port of the spiral propeller and the weighing and packaging system.
Compared with the prior art, the beneficial effects of the utility model are that:
the continuous operation of purification upgrading, grinding powder making, blending modification and granulation operation of low-grade talc lump materials is realized, the talc sorting efficiency is improved, and the high purity and stable quality of primary powder are ensured; the enamel powder, the primary powder and the KH550 are mixed and granulated, so that the homogenization performance of the talcum powder product is optimized, the dust pollution in the production process of the high-temperature-resistant coating is reduced, the paint preparation dispersion efficiency and the high-temperature resistance of the product are improved, and the transportation cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a system for preparing modified talc for high temperature resistant coating according to the present invention.
In the figure: 1. mandrel 2, jaw breaking eccentric shaft 3, movable jaw 4, connecting rod 5, fixed jaw 6, lining plate 7, oscillating screen 8, slag conveyer belt 9, aggregate conveyer belt 10, infrared monitoring transmitting probe 11, infrared receiving feedback probe 12, compressed air nozzle 13, computer 14, talcum guide plate 15, rotary separating drum 16, rubber elastic sweeping plate 17, spray water pipe 18, Raymond machine bin 19, Raymond machine 20, primary powder storage tank 21, KH550 aqueous solution storage tank 22, stirring device 23, opal enamel powder storage tank 24, blending tank 25, screw propeller 26, screw central shaft 27, screw blade 28, granulating template 29, infrared drying conveying guide chain 30, weight checking packaging system 31, lining plate 7, oscillating screen 8, slag conveyer belt 9, aggregate conveyer belt 10, infrared monitoring transmitting probe 11, compressed air nozzle 12, talc guide plate 15, rotary separating drum 16
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1, the system for preparing modified talc for high temperature resistant coating of the present invention comprises a talc block crushing unit, an infrared recognition unit, a wetting separation unit, a primary powder grinding unit, a primary powder blending modification unit and a slurry forming granulation unit; the talc material block crushing unit is provided with a crusher, a material sieve and a granule conveying belt 9; the infrared identification unit is provided with an infrared monitoring emission probe 10, an infrared receiving feedback probe 11 and a compressed air nozzle 12; the wetting separation unit is provided with a rotary separation cylinder 15, a rubber elastic sweeping plate 16 and a spray header 17; the primary powder grinding unit is provided with a Raymond mill 19; the primary powder blending modification unit is provided with a primary powder storage tank 20, a KH550 aqueous solution storage tank 21, a milky white enamel powder storage tank 23 and a blending tank 24; the paint slurry forming and granulating unit is provided with a spiral propeller 25; the material sieve is arranged below the discharge port of the crusher, and the oversize material discharge port of the material sieve is connected with the feeding port of the rotary separation cylinder 15; the infrared identification unit is arranged between a material outlet of oversize materials and a material inlet of the rotary separating drum 15, the infrared monitoring emission probe 10 and the infrared receiving feedback probe 11 are matched with each other to identify talc, and the infrared monitoring emission probe 10, the infrared receiving feedback probe 11 and the compressed air nozzle 12 are controlled in an interlocking manner through a computer 13; one end of the feed port of the rotary separation cylinder 15 is higher than one end of the discharge port and is obliquely arranged, and the rotary separation cylinder rotates around the axis of the rotary separation cylinder; a rubber elastic sweeping plate 16 and a spray header 17 are arranged in the rotary separating cylinder 15, the rubber elastic sweeping plate 16 is arranged at the lower part of the rotary separating cylinder 15, and the spray header 17 is arranged above the rubber elastic sweeping plate 16; the discharge hole of the rotary separation cylinder 15 is connected with the feed inlet of a Raymond mill 19, and the discharge hole of the Raymond mill 19 is connected with the feed inlet of a primary powder storage tank 20; the discharge port of the primary powder storage tank 20, the discharge port of the KH550 aqueous solution storage tank 21 and the discharge port of the opal enamel powder storage tank 23 are respectively connected with corresponding feed ports on the blending tank 24; the discharge port of the blending tank 24 is connected with the feed port of the screw propeller 25, and one end of the discharge port of the screw propeller 25 is provided with a granulation template 28.
The talc material block crushing unit comprises a crusher, a material sieve, a slag material conveying belt 8 and a granule material conveying belt 9; the oversize material outlet of the material sieve is connected with the feed inlet of the rotary separating cylinder 15 through a particle material conveyor belt 9, and a slag material conveyor belt 8 is arranged under the material sieve.
The crusher is a jaw crusher.
The material sieve is a vibrating sieve 7.
The infrared identification unit comprises a talc guide plate 14, an infrared monitoring emission probe 10, an infrared receiving feedback probe 11, a compressed air nozzle 12 and a computer 13; one end of the talc guide plate 14 is arranged at the discharging end of the granule conveyor belt 9, and the other end of the talc guide plate is connected with the feeding hole of the rotary separation cylinder 15; the infrared monitoring emission probe 10 is arranged at the bottom of the talc guide plate 14, the infrared receiving feedback probe 11 is arranged opposite to the infrared monitoring emission probe 10, and the connecting lines of the detection ends of the 2 probes pass through the material initial falling point of the granular material conveyor belt 9; the compressed air nozzles 12 are mounted above the granulate conveyor 9, with their compressed air jet direction passing through the material fall path and directed above the talc guide 14.
The wetting separation unit comprises a rotary separation cylinder 15, a rubber elastic sweeping plate 16 and a spray header 17; the inclination angle of the rotary separation cylinder 15 is 8-12 degrees; the rubber elastic sweeping plate 16 consists of an eccentric shaft 31 and a plurality of rubber blades arranged along the axial direction of the eccentric shaft 31, and the eccentric shaft 31 deviates downwards and to one side relative to the axis of the rotary separating cylinder 15; the rubber elastic sweeping plate 16 rotates around the axis of the eccentric shaft 31, the rotating speed of the rubber elastic sweeping plate is greater than that of the rotary separating cylinder 15, and the rotating direction of the rubber elastic sweeping plate is the same as that of the rotary separating cylinder 15; the rubber blade is contacted with the cylinder wall of the rotary separation cylinder 15 along the tangential direction at one side rotating upwards, and is not contacted with the cylinder wall of the rotary separation cylinder 15 at one side rotating downwards; the spray water pipe 17 is fixed and is provided with a plurality of spray holes along the axial direction of the rotary separating cylinder 15 towards the two sides of the inner wall of the rotary separating cylinder 15.
And one end of a discharge port of the rotary separation cylinder 15 is provided with a sundry stone discharge chute corresponding to the height of the eccentric shaft of the rubber elastic sweeping plate 16.
The primary powder grinding unit comprises a Raymond mill bin 18 and a Raymond mill 19; the Raymond mill bin 18 is arranged below a discharge hole of the rotary separation cylinder 15, the bottom of the Raymond mill bin 18 is connected with a feed inlet at the bottom of the Raymond mill 19 through a discharge chute, and a discharge hole at the top of the Raymond mill 19 is connected with a primary powder storage tank 20 through a pneumatic conveying pipeline.
The blending tank 24 is internally provided with a stirring device 22.
The paint slurry forming and granulating unit comprises a spiral propeller 25, an infrared drying and transporting guide chain 29 and a weight checking and packaging system 30; the infrared drying transportation guide chain 29 is arranged between the discharge hole of the spiral propeller 25 and the weight checking packaging system 30.
The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
In this example, a preparation system of modified talc for high temperature resistant coating is adopted, and talc blocks with loss on ignition of 20% max and a maximum block diameter of 20cm are crushed by a jaw crusher and sieved by a vibrating screen to obtain particles with a diameter of 2.5cm or more; the material particles are differentiated and purified by an infrared recognition system; the purified material particles enter a rotary separation cylinder to further separate and purify high-purity talc particles with the loss on ignition being 7% max; grinding the talc particles by a Raymond mill to form primary powder with the median particle size of 9-13 microns, the particle size of 36 microns accounting for more than 98% min and the maximum particle size within 52 microns; blending and modifying the primary powder with milky white enamel powder with the same fineness and a KH550 silane coupling agent aqueous solution (the mass fraction of silane is 20%) to obtain paint slurry; and granulating and drying the paint slurry to obtain a finished product of the high-temperature-resistant paint.
As shown in fig. 1, in this embodiment, a system for preparing modified talc for high temperature resistant coating includes six parts, namely a talc lump crushing unit, an infrared ray identification unit, a wetting separation unit, a primary powder grinding unit, a primary powder blending modification unit and a mill base forming granulation unit. The preparation process of the modified talc is specifically as follows:
firstly, crushing the talc block.
Selecting low-grade smooth stone blocks with the loss on ignition of 20% max (1000 ℃,1h) and the maximum block diameter of 20cm as raw materials, and feeding the raw materials into a jaw crusher. After the jaw crusher is started, the belt pulley drives the jaw crushing eccentric shaft 2 to rotate, and the connecting rod 4 is driven to move up and down, so that the lining plate 6 is driven to stretch and contract. The lining plate 6 drives the movable jaw 3 to swing back and forth around the mandrel 1. When the movable jaw 3 moves forwards to be close to the fixed jaw 5, the sliding stone is crushed; when the movable jaw 5 retreats, the broken smooth stone blocks fall down from the breaking cavity by gravity and are discharged from the discharge hole. In the stroke of each rotation of the jaw crushing eccentric shaft 2, a half cycle is a crushing process, and the other half cycle is a discharging process. The crushed raw material of the smooth stone falls on a vibrating screen 7 with the aperture of a screen hole of 2.5cm after being discharged. The slag particles with the particle size of less than 2.5cm become undersize materials and fall on a slag material conveyor belt 8 to be transported away. The block particles with the particle size of more than 2.5cm are taken as main materials, vibrated by the oscillating screen 7 and fall on the granule conveyor belt 9, and start to enter the infrared ray identification process.
II, differentiating and purifying by an infrared recognition unit;
the infrared recognition process is a key process for purifying the talc particles, and the process is realized by utilizing the principle of difference of infrared transmittance of talc and miscellaneous stones. When the block particles on the granule conveyor belt 9 travel to the discharging end of the granule conveyor belt 9 and are about to fall, the infrared monitoring transmitting probe 10 arranged at the bottom of the talc guide plate 14 monitors and transmits information to the computer 13, and the computer 13 sends out a linkage instruction: the infrared monitoring emission probe 10 emits infrared rays, the opposite infrared receiving feedback probe 11 starts to receive the infrared rays passing through the granules, and feeds back the received infrared intensity data to the computer 13, and the computer 13 evaluates and judges the infrared intensity data. When the infrared ray intensity value reaches or exceeds the intensity value corresponding to the talc, the computer 13 immediately sends an action command to the compressed air nozzle 12, the compressed air nozzle 12 sprays compressed air, the talc is blown to the talc guide plate 14, and the talc enters the rotary separation cylinder 15 along the talc guide plate 14. On the contrary, if the infrared intensity is lower than the intensity value corresponding to the talc, the computer 13 determines that the infrared intensity is the miscellaneous stones, does not send the action command, does not act the compressed air nozzle 12, and the miscellaneous stones automatically fall into the miscellaneous stone material pile below. Repeating the steps to primarily purify and differentiate the talc and the miscellaneous stones.
Thirdly, separating and purifying the rotary separating cylinder;
the separation process of the rotary separating cylinder 15 is another key process for purifying the talc particles. The process is realized by utilizing the principle that the friction angle between the talc and the miscellaneous stones and the inner wall of the steel cylinder is different when the talc and the miscellaneous stones rotate along with the rotary separating cylinder 15. The talc and miscellaneous stone particles after preliminary purification by the infrared recognition unit enter the rotary separation cylinder 15 along the talc guide plate 14. The rotary separating cylinder 15 is made of a steel cylinder body, the inclination angle is 10 degrees, and the rotary separating cylinder rotates around the axis of the rotary separating cylinder under the action of an external driving device. Due to the driving effect of the friction force when the rotary separating drum 15 rotates, the talc and the miscellaneous stone particles climb along the inner wall of the drum in the rotation process. Because the friction angle of the miscellaneous stone particles is relatively larger, the miscellaneous stone particles climb higher on the inner wall of the cylinder, and the position where the rubber elastic sweeping plate 16 can sweep is reached. Under the relay sweeping action of the plurality of rubber blades, the debris is maintained at the middle upper position of the rotary separating drum 15 and does not fall back to the starting position of the bottom. The debris gradually moves from the high end to the low end of the rotary separating cylinder 15 under the thrust of the rubber blades and the gravity component of the rotary separating cylinder 15 which is obliquely arranged, and finally falls into a debris collecting area along a discharging chute at the discharging end to be removed. The friction angle of the talc particles is small, so that the talc particles cannot rise to the height of the miscellaneous stones when climbing along the inner wall of the barrel and continuously fall back to the starting point of the bottom. Under the action of the gravity component of the obliquely arranged rotary separation cylinder 15, the talc particles gradually move from the high end to the low end of the rotary separation cylinder 15 and finally fall into a Raymond mill bin 18 at the discharge end. At this time, the loss on ignition of the talc particles had reached a high purity of 7% max. In order to relieve the heat generated by friction, a spray header 17 is arranged in the rotary separating cylinder 15 and above the rubber elastic sweeping plate 16.
The rubber elastic sweeping plate 16 is formed by combining a plurality of independent rubber blades and an eccentric shaft 31, each rubber blade is fixed on the same eccentric shaft 31, the eccentric shaft 31 is parallel to the central axis of the rotary separating cylinder 15, but deviates in the vertical and horizontal directions, and the distance between the eccentric shaft 31 and the cylinder wall of the rotary separating cylinder 15 is slightly smaller than the unilateral length of the rubber blade. The rubber blades are arranged at an angle of 45 degrees with the horizontal direction, and are tangent to the inner wall of the cylinder at one side rotating upwards; the rubber blades are driven by the eccentric shaft 31 to rotate around the axis of the eccentric shaft 31, the rotation direction of the rubber blades is the same as the rotation direction of the rotary separating cylinder 15, and the rotation speed of the rubber blades is slightly higher than that of the rotary separating cylinder 15. The spray water pipe 17 is parallel to the eccentric shaft 31 and fixed above the eccentric shaft 31, and the distance between the two is slightly larger than the unilateral length of the rubber blade. The two sides of the spray water pipe 17 facing the inner wall of the rotary separation cylinder 15 are respectively provided with a row of spray holes, the distance between the spray holes is 5cm, and water is sprayed to the inner wall of the cylinder from the spray holes and then flows down along the inner wall of the cylinder.
Fourthly, the primary powder grinding process of the Raymond mill.
The high-purity talc particles in the storage bin 18 of the Raymond mill enter a Raymond mill 19 for fine grinding to prepare primary powder with the median particle size D50 being 9-13 microns (a Marwin MS2000 method, the same below), the proportion of 36-micron-size powder being not less than 98% and the maximum particle size being not more than 52 microns. The primary powder enters a primary powder storage tank 20 for standby.
Fifthly, primary powder blending modification process.
A predetermined amount of KH550 aqueous solution having a silane mass fraction of 20% was poured into a blending tank 24 equipped with a stirring device 22. The stirring device 22 is started, and the raw powder is slowly added into the blending tank 24 at a set ratio while stirring at a speed of 600 rpm. After the primary powder is added, the mixture is continuously stirred at a low speed, the milky white enamel powder with a set proportion is added, and the mixture is continuously stirred until the mixture is uniformly stirred to form a viscous slurry mixture. Standing for 4 hours to complete blending modification. The mass ratio of the raw materials in the modification is as follows: aqueous KH550 solution: primary powder preparation: white enamel powder is 1: 2: 2.
and sixthly, forming and granulating the paint slurry.
This is a process of granulating a viscous slurry-like mixture obtained by stirring the mixture in the blending tank 24 and standing the mixture for 4 hours. Specifically, the slurry mixture is added into a screw propeller 25, and is pressurized by strong thrust when a helical blade 27 fixed on a helical central shaft 26 rotates, so that high-pressure viscous slurry is sheared into cylindrical strip particles when passing through a round hole-shaped granulating template 28 at the discharge end of the screw propeller 25, and the cylindrical strip particles are discharged onto an infrared drying and transporting guide chain 29. In the process of slow operation of the infrared drying and transporting guide chain 29, the cylindrical long particles are dried and shaped by infrared rays, and granulation is completed. Finally, the modified talc is obtained through a weight checking and packaging system 30.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.

Claims (10)

1. A preparation system of modified talc for high temperature resistant coating is characterized by comprising a talc block crushing unit, an infrared recognition unit, a wetting separation unit, a primary powder grinding unit, a primary powder blending modification unit and a slurry molding granulation unit; the talc material block crushing unit is provided with a crusher, a material sieve and a granule conveying belt; the infrared identification unit is provided with an infrared monitoring emission probe, an infrared receiving feedback probe and a compressed air nozzle; the wetting separation unit is provided with a rotary separation cylinder, a rubber elastic sweeping plate and a spray header; the primary powder grinding unit is provided with a Raymond mill; the primary powder blending modification unit is provided with a primary powder storage tank, a KH550 aqueous solution storage tank, a milky enamel powder storage tank and a blending tank; the paint slurry forming and granulating unit is provided with a spiral propeller; the material sieve is arranged below the discharge port of the crusher, and the oversize material discharge port of the material sieve is connected with the feeding port of the rotary separation cylinder; the infrared identification unit is arranged between the discharge port of the oversize material and the feed inlet of the rotary separation drum, the infrared monitoring emission probe and the infrared receiving feedback probe are matched with each other to identify the talc, and the infrared monitoring emission probe, the infrared receiving feedback probe and the compressed air nozzle are controlled in an interlocking manner through a computer; one end of the feed port of the rotary separation cylinder is higher than one end of the discharge port and is obliquely arranged, and the rotary separation cylinder performs rotary motion around the axis of the rotary separation cylinder; the rotary separating cylinder is internally provided with a rubber elastic sweeping plate and a spray header, the rubber elastic sweeping plate is arranged at the lower part of the rotary separating cylinder, and the spray header is arranged above the rubber elastic sweeping plate; the discharge hole of the rotary separation cylinder is connected with the feed inlet of the Raymond mill, and the discharge hole of the Raymond mill is connected with the feed inlet of the primary powder storage tank; the discharge port of the primary powder storage tank, the discharge port of the KH550 aqueous solution storage tank and the discharge port of the opal enamel powder storage tank are respectively connected with corresponding feed ports on the blending tank; the discharge port of the blending tank is connected with the feed port of the spiral propeller, and one end of the discharge port of the spiral propeller is provided with a granulation template.
2. The system for preparing modified talc for high temperature resistant coating according to claim 1, wherein said talc lump crushing unit comprises crusher, material screen, slag conveyer belt and granule conveyer belt; the material screen has material outlet connected to the material inlet of the rotary separating cylinder via the granular material conveying belt and slag conveying belt below the material screen.
3. The system for preparing modified talc for high temperature resistant paint according to claim 1 or 2, wherein said crusher is jaw crusher.
4. The system for preparing modified talc for high temperature resistant coating according to claim 1 or 2, wherein said material sieve is a vibrating sieve.
5. The system for preparing the modified talc for the high temperature resistant coating according to claim 1, wherein said infrared ray identification unit comprises talc guide plate, infrared ray monitoring emission probe, infrared ray receiving feedback probe, compressed air nozzle and computer; one end of the talc guide plate is arranged at the discharging end of the granule conveyor belt, and the other end of the talc guide plate is connected with a feeding hole of the rotary separating cylinder; the infrared monitoring emission probe is arranged at the bottom of the talc guide plate, the infrared receiving feedback probe and the infrared monitoring emission probe are oppositely arranged, and the connecting lines of the detection ends of the 2 probes pass through a material initial falling point of the granular material conveyor belt; the compressed air nozzle is arranged above the granule conveyor belt, and the compressed air injection direction of the compressed air nozzle passes through the material falling path and faces to the upper part of the talc guide plate.
6. The system for preparing the modified talc for high temperature resistant paint according to claim 1, wherein said wet separation unit comprises a rotary separation cylinder, a rubber elastic sweeping plate and a spray header; the inclination angle of the rotary separation cylinder is 8-12 degrees; the rubber elastic sweeping plate consists of an eccentric shaft and a plurality of rubber blades arranged along the axial direction of the eccentric shaft, and the eccentric shaft deviates downwards and to one side relative to the axis of the rotary separating cylinder; the rubber elastic sweeping plate rotates around the axis of the eccentric shaft, the rotating speed of the rubber elastic sweeping plate is greater than that of the rotary separating cylinder, and the rotating direction of the rubber elastic sweeping plate is the same as that of the rotary separating cylinder; the rubber blade is contacted with the cylinder wall of the rotary separation cylinder along the tangential direction at one side rotating upwards and is not contacted with the cylinder wall of the rotary separation cylinder at one side rotating downwards; the spray header is fixed, and a plurality of spray holes are formed in the two sides of the spray header, which face the inner wall of the rotary separation cylinder, along the axis direction of the rotary separation cylinder.
7. The system for preparing the modified talc according to claim 6, wherein a miscellaneous stone discharge chute is provided at an end of a discharge port of said rotary separation drum corresponding to a height of an eccentric shaft of said rubber elastic sweeping plate.
8. The system for preparing the modified talc for high temperature resistant paint according to claim 1, wherein said primary powder grinding unit comprises a Raymond mill bin and a Raymond mill; the Raymond mill bin is arranged below a discharge port of the rotary separation cylinder, the bottom of the Raymond mill bin is connected with a feed port at the bottom of the Raymond mill through a discharging chute, and a discharge port at the top of the Raymond mill is connected with a primary powder storage tank through a pneumatic conveying pipeline.
9. The system for preparing modified talc for high temperature resistant paint according to claim 1, wherein said blending tank is equipped with a stirring device.
10. The system for preparing the modified talc for the high temperature resistant coating according to claim 1, wherein the slurry forming granulation unit comprises a screw propeller, an infrared drying transportation guide chain and a weight checking packaging system; the infrared drying transportation guide chain is arranged between the discharge port of the spiral propeller and the weighing and packaging system.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115155791A (en) * 2022-07-11 2022-10-11 辽宁艾海滑石有限公司 Preparation method of talcum powder special for diesel truck tail gas purifier DPF

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115155791A (en) * 2022-07-11 2022-10-11 辽宁艾海滑石有限公司 Preparation method of talcum powder special for diesel truck tail gas purifier DPF
CN115155791B (en) * 2022-07-11 2024-05-10 辽宁艾海滑石有限公司 Preparation method of talcum powder special for DPF of tail gas purifier of diesel truck

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