CN109734100B - Quartz powder production system - Google Patents
Quartz powder production system Download PDFInfo
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- CN109734100B CN109734100B CN201811578736.1A CN201811578736A CN109734100B CN 109734100 B CN109734100 B CN 109734100B CN 201811578736 A CN201811578736 A CN 201811578736A CN 109734100 B CN109734100 B CN 109734100B
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Abstract
The invention relates to a quartz powder production system, which comprises a roller dryer, a gas conveying device connected with a discharge hole of the roller dryer, magnetic separation equipment connected with the discharge hole of the gas conveying device, impurity removal equipment connected with the discharge hole of the magnetic separation equipment, and grinding classification equipment connected with the discharge hole of the impurity removal equipment. The invention can effectively solve the problems of large occupied space, high equipment cost and labor cost and low production efficiency caused by too many devices involved in the whole system because the existing quartz powder production system has unreasonable structure and insufficient simplified process and only can realize a single function.
Description
Technical Field
The invention relates to a quartz powder production system.
Background
The processing means of natural quartz minerals usually adopts wet processes such as crushing, grinding, magnetic separation, scrubbing, flotation and the like, and the quartz powder meeting the requirements can be prepared only by the subsequent procedures such as drying treatment, grinding classification and the like. The existing quartz powder production system has the problems that the equipment involved in the whole system is too many because the equipment is not reasonable enough and the structure of the equipment is not reasonable enough, so that the occupied space is large, the equipment cost and the labor cost are too high, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide that: the utility model provides a quartz powder production system, solves current quartz powder production system because the structure is unreasonable, has the technology not retrench enough, and many equipment can only realize single function, and the equipment that whole system relates to is too much, and then causes occupation space great, and equipment cost and cost of labor are too high, problem that production efficiency is low.
The technical scheme adopted for solving the technical problems is as follows: a quartz powder production system comprises a roller dryer, a gas conveying device connected with a discharge port of the roller dryer, magnetic separation equipment connected with the discharge port of the gas conveying device, impurity removal equipment connected with the discharge port of the magnetic separation equipment, and grinding classification equipment connected with the discharge port of the impurity removal equipment; the drum dryer comprises a driving motor and a group of riding wheels, the roller is rotatably arranged on the riding wheels, the driving motor is connected with a driving wheel, a driven wheel meshed with the driving wheel is sleeved on the outer side wall of the roller, a feeding port is arranged at the left feeding end of the roller, a foreign matter outlet is arranged at the right discharging end of the roller, and the roller can be divided into four sections from the feeding end to the discharging end, namely a drying section, a cooling section, a screening section and a discharging section in sequence; the feeding end at the left side of the roller is provided with a fire punch, a group of fire tubes connected with the fire punch are arranged in the drying section, the side wall of the roller is provided with a flue connected with the tail end of the fire tube and a water channel communicated with the inner cavity of the roller, one end of the water channel, which is away from the inner cavity of the roller, is connected with an exhaust fan, and the water channel is arranged at the position, close to the feeding hole, of the side wall of the roller; the screening section is a cylindrical screen with two ends respectively connected with the cooling section and the discharging section; the impurity outlet of the roller is arranged on the discharging section; the section of the drum provided with the fire tube is a drying section, the section provided with the cylindrical screen is a screening section, the section between the drying section and the screening section is a cooling section, and the section behind the screening section is a discharging section; the dryer also comprises a discharging cover which is covered outside the screening section, and a discharge hole is arranged at the bottom of the discharging cover.
Further, the firetube is U style of calligraphy, and it is close to cylinder stoving section inner wall setting, and the mesh number of tube-shape screen cloth is less than or equal to 10 meshes, and cooling section detachable device is at the afterbody of stoving section, and screening section detachable device is between cooling section and ejection of compact section, is provided with the heat preservation insulating layer between the cylinder lateral wall and the inside wall that lie in the stoving section.
Further, the impurity removing equipment comprises a feeding barrel, a guide chute, a material conveying belt and a material collecting device which are sequentially arranged from top to bottom, wherein a feeding hole of the feeding barrel is connected with a discharging hole of the magnetic separation equipment, the discharging hole of the feeding barrel is connected with a feeding hole of the guide chute, the guide chute is arc-shaped from a feeding end to a discharging end of the guide chute, two ends of the material conveying belt are respectively provided with a roll shaft, and the roll shafts positioned at the feeding end of the material conveying belt are connected with a variable frequency motor with adjustable rotating speed; the material collecting device is arranged below the material outlet end of the material conveying belt in an open mode, an isolation screening plate is arranged in the material collecting device, the isolation screening plate separates the material collecting device into a left light impurity collecting cavity and a right fine material collecting cavity, a rotatable device at the bottom of the isolation screening plate is arranged at the bottom of the material collecting device, the material collecting device is inclined from bottom to top, and the inclination angle of the material collecting device is adjustable; the top of the isolation screening plate is matched with the discharge end of the material conveying belt, and is used for separating impurities.
Further, be provided with the flashboard that can open and close in the feedwell, the flashboard cuts apart the feedwell into upper and lower both sides, and the feedwell lower floor is provided with the slope and is provided with the baffle downwards, and baffle top-down inclines right, adjustable between baffle bottom and the feedwell right side wall, but the upper end top rotating device of baffle is on feedwell left side wall, and the vertical inclination of baffle is adjustable, and the bottom of feedwell is provided with the feedwell discharge gate in the below of baffle.
The top of the guide chute is connected with the discharge port of the feed hopper, and the tangential angle of the end part of the discharge end of the guide chute is 0-5 degrees; when the isolation screening plate is vertical, the distance between the isolation screening plate and the material conveying belt is 2-5 cm; when in operation, the vertical included angle of the isolation screening plate is 5-20 degrees; the material conveying belt is subjected to Teflon and antistatic treatment; the rotating speed of the belt driving wheel connected with the variable frequency motor is 150-300 revolutions per minute, and the diameter of the roll shaft is 80-100 cm; the feeding speed of the guide chute is 1-3 tons/h; an impurity collecting barrel is arranged below the left light impurity collecting cavity, and a concentrate collecting barrel is arranged below the right concentrate collecting cavity.
Further, the grinding classification equipment comprises an ultrasonic vibration screen, the ultrasonic vibration screen comprises a body and a net rack arranged in the body, the net rack divides the body into an upper layer and a lower layer, and each layer is respectively and correspondingly provided with a discharge hole; the net rack comprises an inner vibrating ring, an outer vibrating ring and an annular frame which are sequentially arranged from inside to outside, and the inner vibrating ring, the outer vibrating ring and the annular frame are concentrically arranged; a group of inner support spokes used for connecting and fixing are arranged between the inner vibrating ring and the outer vibrating ring, a group of outer support spokes used for connecting and fixing are arranged between the outer vibrating ring and the annular frame, the lower side of the outer vibrating ring is in transmission connection with an amplitude transformer, and the other end of the amplitude transformer is connected with an ultrasonic transducer; the method is characterized in that: a trawl is arranged on the net frame, a screen is stuck and covered above the trawl, and the trawl is soldered on the upper end surfaces of the vibrating ring, the outer vibrating ring, the annular frame, the inner supporting spokes and the outer supporting spokes; the mesh aperture of the trawl is larger than that of the screen.
The invention has the beneficial effects that: the system can effectively solve the problems that the existing quartz powder production system is unreasonable in structure, the process is not simplified enough, a plurality of devices can only realize a single function, the devices involved in the whole system are excessive, occupied space is large, the device cost and labor cost are high, and the production efficiency is low.
Compared with the traditional roller type quartz sand dryer, the roller type quartz sand dryer has the advantages that the cooling section and the screening section are additionally arranged on the basis of the drying section, the primary screening after heating is realized, impurities in quartz sand are removed, preparation is made for subsequent screening work, the cost is saved on the basis of improving the structural rationality, the dried quartz sand can directly enter the carefully selecting stage, the production efficiency is improved, and meanwhile, the quality of products is improved.
The device comprises a magnetic separation device, a rotating speed adjustable variable frequency motor, a material collection device, a separation screening plate, a material conveying belt, a material separation device and a material separation device. The method effectively solves the problems that when the existing quartz sand is in the preparation process, such as screening of the impurities such as saw dust in quartz powder, the screening precision requirement is not very high, and at the moment, if special screening equipment is used for screening, the equipment cost is increased, meanwhile, the whole process flow is not simplified enough, and the cost and the working efficiency are affected.
In the ultrasonic vibration sieve, through welding one deck trawl earlier on the rack, then paste the screen cloth on the trawl, the mesh number of trawl is less than the screen cloth, just so do not influence normal screen cloth, simultaneously, can improve the connection fastness between trawl and the rack, do not influence the normal work of screen cloth simultaneously, effectively prevented that current direct paste individual layer screen cloth on the rack, and its drop phenomenon because of vibrations takes place, effectively solved current ultrasonic vibration sieve and set up the individual layer screen cloth, the screen cloth drops and then influences normal use easily, ultrasonic vibration sieve life is short problem. Meanwhile, the inner side wall of the body, the trawl net and the outer surface of the screen mesh are provided with aluminum oxide layers, so that mechanical iron is prevented from being mixed into products in the screening process, and the quality of the screened products is improved greatly. The invention effectively solves the problems that the existing ultrasonic vibration screen adopts a single-layer screen mesh which is adhered to the bottom of ultrasonic wave, so that the screen mesh is loosened in the vibration screening process, thereby affecting the normal use; meanwhile, because the ultrasonic screen is mostly made of steel materials, the problem that mechanical iron on the screen is mixed into products and the quality of the products is reduced in the screening process cannot be avoided
The invention will be described in more detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a block diagram of the structure of the present invention.
Fig. 2 is a schematic structural view of drum type drying.
Fig. 3 is a schematic structural view of the impurity removing apparatus.
Fig. 4 is a schematic structural view of an ultrasonic vibration screen.
Fig. 5 is a schematic structural view of a screen frame portion of an ultrasonic vibration screen.
Fig. 6 is a schematic cross-sectional structure of a screen frame portion of an ultrasonic vibration screen.
Detailed Description
The embodiment is shown in fig. 1 to 6, and the quartz powder production system comprises a roller dryer 1, a gas conveying device 2 connected with a discharge port of the roller dryer 1, a magnetic separation device 3 connected with the discharge port of the gas conveying device 2, a impurity removal device 4 connected with the discharge port of the magnetic separation device 3, and a grinding classification device 5 connected with the discharge port of the impurity removal device 4; the roller dryer comprises a driving motor 11 and a group of riding wheels 12, a roller 13 rotatably erected on the riding wheels 12, the driving motor 11 is connected with a driving wheel 14, the outer side wall of the roller 13 is sleeved with a driven wheel 15 meshed with the driving wheel 14, the left side feeding end of the roller 13 is provided with a feeding port, the right side discharging end is provided with a impurity outlet 16, the roller 13 can be divided into four sections from the feeding end to the discharging end, and the four sections comprise a drying section, a cooling section, a screening section and a discharging section in sequence; the feeding end at the left side of the roller 13 is provided with a fire punch 17, a group of fire tubes 18 connected with the fire punch 17 are arranged in the drying section, the side wall of the roller 13 is provided with a flue 19 connected with the tail end of the fire tube 18 and a water channel 110 communicated with the inner cavity of the roller 13, one end of the water channel 110, which is away from the inner cavity of the roller 13, is connected with an exhaust fan 111, and the water channel 110 is arranged at the position, close to the feeding hole, of the side wall of the roller 3; the screening section is a cylindrical screen 114 with two ends respectively connected with the cooling section and the discharging section; the impurity outlet 16 of the roller 13 is arranged on the discharging section; the dryer also comprises a discharge cover 112 covered outside the screening section, and a discharge outlet 113 is arranged at the bottom of the discharge cover 112. The section of the drum 13 provided with the fire tube 18 is a drying section, the section provided with the cylindrical screen 114 is a screening section, the section located between the drying section and the screening section is a cooling section, and the section located after the screening section is a discharging section. The magnetic separation device 3 is used for removing mechanical iron in quartz powder, and the magnetic separation device 3 in the invention adopts common magnetic separation devices in the market, so that the detailed structural description is omitted. Similarly, in this case, the gas feeding device 2 is not innovative, and an existing apparatus is adopted, and therefore, a detailed structural description is not given.
The fire tube 18 is U-shaped and is arranged close to the inner wall of the drying section of the roller 13. The mesh number of the cylindrical screen is not more than 110 mesh. The cooling section detachable device is arranged at the tail part of the drying section, and the screening section detachable device is arranged between the cooling section and the discharging section. In order to achieve better heat preservation and energy saving effects, a heat preservation and insulation layer is arranged between the outer side wall and the inner side wall of the roller 13 positioned in the drying section.
The impurity removing device 4 comprises a feeding barrel 31, a guide chute 32, a material conveying belt 33 and a material collecting device 34 which are sequentially arranged from top to bottom, wherein a feeding hole of the feeding barrel 31 is connected with a discharging hole at the bottom of a discharging cover, the discharging hole of the feeding barrel 31 is connected with a discharging hole of the magnetic separation device 3, the guide chute 32 is arc-shaped from a feeding end to a discharging end of the guide chute 32, two ends of the material conveying belt 33 are respectively provided with a roll shaft 35, and the roll shafts 35 positioned at the feeding end of the material conveying belt 3 are connected with a variable-frequency motor 36 with adjustable rotating speed; the material collecting device 34 is arranged below the discharge end of the material conveying belt 33 in an open mode, an isolation screening plate 37 is arranged in the material collecting device, the isolation screening plate 37 separates the material collecting device 34 into a left light impurity collecting cavity 39 and a right fine material collecting cavity 38, a rotatable device at the bottom of the isolation screening plate 37 is arranged at the bottom of the material collecting device 34, the material collecting device 34 is inclined from bottom to top, and the inclination angle of the material collecting device is adjustable; the top of the isolation screening plate 37 is matched with the discharge end of the material conveying belt 33, and is used for separating impurities and purifying products.
A shutter 311 which can be opened and closed is arranged in the feed barrel 31, the shutter 311 divides the feed barrel 31 into an upper side and a lower side, a baffle 310 is arranged obliquely downwards on the lower layer of the feed barrel 31, the baffle 310 is obliquely right from top to bottom, the bottom of the baffle 310 and the right side wall of the feed barrel 31 are adjustable, the upper end top rotatable device of baffle 310 is on the left side wall of feedwell 31, and baffle 310's vertical inclination is adjustable, and feedwell 31's bottom is provided with feedwell 31 discharge gate below being located baffle 310.
The top of the guide chute 32 is connected with the discharge port of the feed barrel 31, and the tangential angle of the discharge end of the guide chute 32 is 0-5 degrees.
When the isolation screening plate 37 is vertical, the distance between the isolation screening plate and the material conveying belt 33 is 2-5 cm; in operation, the vertical included angle of the isolation screening plate 37 is 5-20 °. The material conveying belt 33 is the material conveying belt 33 subjected to Teflon and antistatic treatment.
The rotation speed of the belt driving wheel connected with the variable frequency motor 36 is 150-300 revolutions per minute, and the diameter of the roller is 25-100 cm. The feed rate of the guide chute 32 is 1 to 3 tons/h. An impurity collecting tank 314 is arranged below the left light impurity collecting cavity 39, a concentrate collecting tank 313 is arranged below the right concentrate collecting cavity 38,
the grinding classification equipment 5 comprises an ultrasonic vibration screen, wherein the ultrasonic vibration screen comprises a body, the body comprises a base 41 and support columns 42 arranged on the base 41, a screen shell 43 is erected on the base 41 through the support columns 42, a net rack is arranged in the body and is arranged in the screen shell 43, the net rack divides the body or the screen shell 43 into an upper layer and a lower layer, and each layer is correspondingly provided with a discharge hole 44; the net rack comprises an inner vibrating ring 47, an outer vibrating ring 48 and an annular frame 49 which are sequentially arranged from inside to outside, wherein the inner vibrating ring 47, the outer vibrating ring 48 and the annular frame 49 are concentrically arranged; a group of inner support spokes 410 for connection and fixation are arranged between the inner vibration ring 47 and the outer vibration ring 48, a group of outer support spokes 411 for connection and fixation are arranged between the outer vibration ring 48 and the annular frame 49, the lower side of the outer vibration ring 48 is in transmission connection with the amplitude transformer 46, and the other end of the amplitude transformer 46 is connected with the ultrasonic transducer 45; the net frame is provided with a trawl 412, a screen 413 is stuck and covered above the trawl 412, and when the net frame does not work, the upper end surfaces of the inner vibrating ring 47, the outer vibrating ring 48, the annular frame 49, the inner supporting spoke 410 and the outer supporting spoke 411 are positioned on the same horizontal plane, and the trawl 412 is soldered on the net frame, in other words, soldered on the upper end surfaces of the inner vibrating ring 47, the outer vibrating ring 48, the annular frame 49, the inner supporting spoke 410 and the outer supporting spoke 411; the trawl 412 has a mesh aperture larger than that of the screen 413. The mesh number of the trawl 412 is 15 to 20 mesh, and the mesh number of the screen 413 is 100 to 140 mesh.
The outer surfaces of both trawl 412 and screen 413 are coated with an alumina layer. The inner side walls of the body are covered with an alumina layer.
The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.
Claims (5)
1. A quartz powder production system, which is characterized in that: the device comprises a roller dryer, a gas conveying device connected with a discharge hole of the roller dryer, magnetic separation equipment connected with the discharge hole of the gas conveying device, impurity removal equipment connected with the discharge hole of the magnetic separation equipment, and grinding classification equipment connected with the discharge hole of the impurity removal equipment; the drum-type dryer includes driving motor, a set of riding wheel, rotatable roller of setting up on the riding wheel, and the driving motor hookup is provided with the action wheel, and the cover is equipped with the follow driving wheel with action wheel meshing on the lateral wall of roller, and the left side feed end of cylinder is provided with the feed inlet, and the right side discharge end sets up miscellaneous mouth, its characterized in that: the roller can be divided into four sections from a feeding end to a discharging end, and the four sections comprise a drying section, a cooling section, a screening section and a discharging section in sequence; the feeding end at the left side of the roller is provided with a fire punch, a group of fire tubes connected with the fire punch are arranged in the drying section, the side wall of the roller is provided with a flue connected with the tail end of the fire tube and a water channel communicated with the inner cavity of the roller, one end of the water channel, which is away from the inner cavity of the roller, is connected with an exhaust fan, and the water channel is arranged at the position, close to the feeding hole, of the side wall of the roller; the screening section is a cylindrical screen with two ends respectively connected with the cooling section and the discharging section; the impurity outlet of the roller is arranged on the discharging section; the section of the drum provided with the fire tube is a drying section, the section provided with the cylindrical screen is a screening section, the section between the drying section and the screening section is a cooling section, and the section behind the screening section is a discharging section; the dryer also comprises a discharging cover which is covered outside the screening section, and a discharging hole is arranged at the bottom of the discharging cover;
the grinding classification equipment comprises an ultrasonic vibration screen, wherein the ultrasonic vibration screen comprises a body and a net rack arranged in the body, the net rack divides the body into an upper layer and a lower layer, and each layer is correspondingly provided with a discharge hole; the net rack comprises an inner vibrating ring, an outer vibrating ring and an annular frame which are sequentially arranged from inside to outside, and the inner vibrating ring, the outer vibrating ring and the annular frame are concentrically arranged; a group of inner support spokes used for connecting and fixing are arranged between the inner vibrating ring and the outer vibrating ring, a group of outer support spokes used for connecting and fixing are arranged between the outer vibrating ring and the annular frame, the lower side of the outer vibrating ring is in transmission connection with an amplitude transformer, and the other end of the amplitude transformer is connected with an ultrasonic transducer; a trawl is arranged on the net frame, a screen is stuck and covered above the trawl, and the trawl is soldered on the upper end surfaces of the vibrating ring, the outer vibrating ring, the annular frame, the inner supporting spokes and the outer supporting spokes; the mesh aperture of the trawl is larger than that of the screen.
2. The quartz powder production system of claim 1, wherein: the firetube is U style of calligraphy, and its mesh that is close to cylinder stoving section inner wall sets up, and the mesh number of tube-shape screen cloth is less than or equal to 10 meshes, and cooling section detachable device is at the afterbody of stoving section, and screening section detachable device is between cooling section and ejection of compact section, is provided with the heat preservation insulating layer between the cylinder lateral wall and the inside wall that lie in the stoving section.
3. The quartz powder production system according to claim 1 or 2, wherein: the impurity removing equipment comprises a feeding barrel, a guide chute, a material conveying belt and a material collecting device which are sequentially arranged from top to bottom, wherein a feeding hole of the feeding barrel is connected with a discharging hole of the magnetic separation equipment, the discharging hole of the feeding barrel is connected with a feeding hole of the guide chute, the guide chute is arc-shaped from a feeding end to a discharging end of the guide chute, two ends of the material conveying belt are respectively provided with a roll shaft, and the roll shafts positioned at the feeding end of the material conveying belt are connected with a variable-frequency motor with adjustable rotating speed; the material collecting device is arranged below the material outlet end of the material conveying belt in an open mode, an isolation screening plate is arranged in the material collecting device, the isolation screening plate separates the material collecting device into a left light impurity collecting cavity and a right fine material collecting cavity, a rotatable device at the bottom of the isolation screening plate is arranged at the bottom of the material collecting device, the material collecting device is inclined from bottom to top, and the inclination angle of the material collecting device is adjustable; the top of the isolation screening plate is matched with the discharge end of the material conveying belt, and is used for separating impurities.
4. A quartz powder production system according to claim 3, characterized in that: the upper end top rotatable device of baffle is on the left side wall of the feedwell, the vertical inclination angle of baffle is adjustable, and the bottom of feedwell is provided with the feedwell discharge gate below that the baffle is located.
5. The quartz powder production system of claim 4, wherein: the top of the guide chute is connected with the discharge port of the feed hopper, and the tangential angle of the end part of the discharge end of the guide chute is 0-5 degrees; when the isolation screening plate is vertical, the distance between the isolation screening plate and the material conveying belt is 2-5 cm; when in operation, the vertical included angle of the isolation screening plate is 5-20 degrees; the material conveying belt is subjected to Teflon and antistatic treatment; the rotating speed of the belt driving wheel connected with the variable frequency motor is 150-300 revolutions per minute, and the diameter of the roll shaft is 80-100 cm; the feeding speed of the guide chute is 1-3 tons/h; an impurity collecting barrel is arranged below the left light impurity collecting cavity, and a concentrate collecting barrel is arranged below the right concentrate collecting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811578736.1A CN109734100B (en) | 2018-12-24 | 2018-12-24 | Quartz powder production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811578736.1A CN109734100B (en) | 2018-12-24 | 2018-12-24 | Quartz powder production system |
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| Publication Number | Publication Date |
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| CN109734100A CN109734100A (en) | 2019-05-10 |
| CN109734100B true CN109734100B (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811578736.1A Active CN109734100B (en) | 2018-12-24 | 2018-12-24 | Quartz powder production system |
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| CN (1) | CN109734100B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD268896A1 (en) * | 1986-11-28 | 1989-06-14 | Bauakademie Der Ddr Inst Fur I | DEVICE FOR EXPLORING A SIEVE STAIN |
| CN2166895Y (en) * | 1993-09-03 | 1994-06-01 | 山东省临朐石油机械总厂 | Coherence type screen for rock screen |
| CN202877099U (en) * | 2012-09-25 | 2013-04-17 | 唐山陆凯科技有限公司 | Single vibration source resonance type composite vibrating screen |
| CN104998829A (en) * | 2015-07-28 | 2015-10-28 | 安徽奥生资源利用科技有限公司 | Waste plastic multi-stage sorting system |
| CN204787666U (en) * | 2015-07-15 | 2015-11-18 | 四川南联矿业有限责任公司 | Stoving grading plant of quartzy tailings |
| JP3208848U (en) * | 2015-12-07 | 2017-02-23 | 溪霖 游 | Vibration sieving machine |
| CN207528027U (en) * | 2017-11-29 | 2018-06-22 | 莱州市莱玉化工有限公司 | A kind of screening dryer |
| CN209651905U (en) * | 2018-12-24 | 2019-11-19 | 凯盛石英材料（黄山）有限公司 | A kind of silica flour production system |
-
2018
- 2018-12-24 CN CN201811578736.1A patent/CN109734100B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD268896A1 (en) * | 1986-11-28 | 1989-06-14 | Bauakademie Der Ddr Inst Fur I | DEVICE FOR EXPLORING A SIEVE STAIN |
| CN2166895Y (en) * | 1993-09-03 | 1994-06-01 | 山东省临朐石油机械总厂 | Coherence type screen for rock screen |
| CN202877099U (en) * | 2012-09-25 | 2013-04-17 | 唐山陆凯科技有限公司 | Single vibration source resonance type composite vibrating screen |
| CN204787666U (en) * | 2015-07-15 | 2015-11-18 | 四川南联矿业有限责任公司 | Stoving grading plant of quartzy tailings |
| CN104998829A (en) * | 2015-07-28 | 2015-10-28 | 安徽奥生资源利用科技有限公司 | Waste plastic multi-stage sorting system |
| JP3208848U (en) * | 2015-12-07 | 2017-02-23 | 溪霖 游 | Vibration sieving machine |
| CN207528027U (en) * | 2017-11-29 | 2018-06-22 | 莱州市莱玉化工有限公司 | A kind of screening dryer |
| CN209651905U (en) * | 2018-12-24 | 2019-11-19 | 凯盛石英材料（黄山）有限公司 | A kind of silica flour production system |
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