CN113318866B - Aeration type flotation machine for processing high-white superfine magnesium hydroxide fire retardant by physical method - Google Patents
Aeration type flotation machine for processing high-white superfine magnesium hydroxide fire retardant by physical method Download PDFInfo
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- CN113318866B CN113318866B CN202110607107.2A CN202110607107A CN113318866B CN 113318866 B CN113318866 B CN 113318866B CN 202110607107 A CN202110607107 A CN 202110607107A CN 113318866 B CN113318866 B CN 113318866B
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/025—Froth-flotation processes adapted for the flotation of fines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1462—Discharge mechanisms for the froth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1468—Discharge mechanisms for the sediments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/16—Flotation machines with impellers; Subaeration machines
- B03D1/20—Flotation machines with impellers; Subaeration machines with internal air pumps
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- C—CHEMISTRY; METALLURGY
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- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/14—Magnesium hydroxide
- C01F5/145—Purification
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- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
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Abstract
The high-whiteness superfine magnesium hydroxide flame retardant is an inorganic flame retardant which is prepared by taking brucite as a raw material through crushing, grading and purifying, and has the whiteness of more than 95 and the granularity of 5-10 mu m; s1, coarsely crushing brucite raw ore into ore particles of 2-3 cm through a jaw crusher; s2, finely crushing the ore particles into 5-10 mu m ultrafine powder by an ultrafine crusher; s3, putting the superfine powder into a powder melting tank, adding water and stirring to form fine powder slurry; s4, conveying the fine powder slurry into an aeration type flotation machine, adding a foaming agent, and utilizing blowing disturbance of the flotation machine to enable foams formed by the foaming agent to be adsorbed on the surfaces of ore particles and scraped out by a scraper, wherein tailing impurities fall into the bottom of the flotation machine and are discharged; the invention can thoroughly and quickly discharge the ore particles floating on the surface and the tailings precipitated at the bottom without secondary operation of workers, so that the flotation efficiency is higher, fewer subsequent impurities are generated, and the ore particle content is higher.
Description
Technical Field
The invention belongs to the technical field of processing of flame retardants, and particularly relates to an aeration type flotation machine for processing a high-whiteness superfine magnesium hydroxide flame retardant by a physical method.
Background
The magnesium hydroxide is a novel filling typeFlame retardantThe surface temperature of the synthetic material filled with the synthetic material in the flame is reduced by releasing the bound water and absorbing a large amount of latent heat when the synthetic material is heated and decomposed, and the synthetic material has the effects of inhibiting the decomposition of polymers and cooling the generated combustible gas;
the existing method for preparing the magnesium hydroxide flame retardant is multiple, and mainly comprises a physical method and a chemical method, wherein the physical method is prepared by carrying out physical deep processing on natural mineral brucite, the raw materials are easy to obtain, the production process is simple, and the method is green and environment-friendly; the chemical method mainly utilizes a chemical synthesis method, namely, the raw materials such as bittern containing magnesium chloride, halogen ore and the like are utilized to react with alkalis in an aqueous medium, and the chemical method has complex production process, difficult acquisition of the raw materials and easy environmental pollution;
however, the whiteness of the magnesium hydroxide flame retardant by the physical method is limited by the grade of brucite, and the higher the grade of ore is, the better the whiteness is; in the prior art, in order to increase the whiteness of the physical method magnesium hydroxide fire retardant, during processing, the ultra-finely crushed magnesium hydroxide fire retardant is prepared into slurry, and then, the required ore particles and tailings are subjected to flotation separation, so that the purity of the magnesium hydroxide fire retardant is improved; however, in the current flotation process, the discharge equipment is only arranged at the outlet of the flotation machine, and the ore particles positioned on the surface far away from the outlet cannot be quickly discharged, so that the ore particles are accumulated, manual cleaning is needed in the subsequent process, and the discharge is not thorough; and when the tailings at the bottom are discharged, because the tailings have poor flowability, the tailings are easy to be retained, hung on the wall or block the discharge pipe, the discharge speed is slow, and the tailings attached to the inner wall need to be manually cleaned.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a high-whiteness superfine magnesium hydroxide flame retardant by a physical method, which has the following specific technical scheme:
the high-whiteness superfine magnesium hydroxide flame retardant is an inorganic flame retardant which is prepared by taking brucite as a raw material through crushing, grading and purifying, and has whiteness of more than 95 and granularity of 5-10 mu m.
The preparation method of the high-whiteness superfine magnesium hydroxide flame retardant by the physical method comprises the following steps:
s1, coarsely crushing brucite raw ore into ore grains of 2-3cm by using a jaw crusher;
s2, finely crushing the ore particles into superfine powder of 5 to 10 mu m by a superfine crusher;
s3, putting the ultrafine powder into a powder melting tank, adding water and stirring to form fine powder slurry;
and S4, conveying the fine powder slurry into an aeration type flotation machine, adding a foaming agent, and disturbing by blowing of the flotation machine to enable foams formed by the foaming agent to be adsorbed on the surfaces of ore particles and scraped out by a scraper, wherein tailing impurities fall into the bottom of the flotation machine and are discharged.
Further, in S4, the aeration type flotation machine includes a cabinet, and an ore particle floating region, a suspension region, and a tailing settling region are sequentially disposed inside the cabinet from top to bottom;
a transmission pipe is arranged at the central line of the inside of the case, and the side wall of the top of the transmission pipe is vertically communicated with a gas pipe which is used for conveying high-pressure gas and foaming agent; the top end of the transmission pipe is provided with a first rotating motor;
the bottom end of the transmission pipe is communicated with a second box body, the second box body is arranged at the inner bottom of the suspension area, and exhaust heads are distributed on the top surface of the second box body and used for exhausting mixed gas upwards to generate foam; the two sides of the second box body are rotatably connected with stirring components, and the stirring components rotate upwards and are contained in the suspension area and rotate downwards to extend into the tailing sedimentation area; the stirring assembly is used for accelerating the discharge speed of tailings, and a discharge assembly is arranged at the position of the side wall of the case opposite to the tailing sedimentation area; the top of the case is horizontally provided with a discharging mechanism, the discharging mechanism is arranged in the ore particle floating area, and the discharging mechanism is used for circularly pushing out the ore particles;
the coverage area of the discharging mechanism is the same as the surface area of the ore particle floating area, and the transmission pipe vertically penetrates through the discharging mechanism.
Further, it includes conveyer belt, scraper blade subassembly and transmission post to arrange the material mechanism, the inside both ends of conveyer belt are equipped with the transmission post, the conveyer belt includes first clitellum, second clitellum and dodges the clearance, first clitellum, second clitellum mirror symmetry set up, the interval sets up between first clitellum, the second clitellum and forms and dodges the clearance, the clearance is dodged in the vertical running through of transmission pipe, the equal perpendicular scraper blade subassembly that is equipped with the annular distribution in surface of first clitellum, second clitellum, the scraper blade subassembly on the first clitellum, the scraper blade subassembly on the second clitellum set up relatively between the subassembly, and the scraper blade subassembly that two set up relatively is used for jointly seamlessly to release the ore granule.
Further, the scraper blade subassembly includes scraper blade and fly leaf, the scraper blade is located on first clitellum or the second clitellum perpendicularly, the length of scraper blade is the same with the width of first clitellum, the inner of scraper blade is rotated and is connected fly leaf and rotate the junction and install the torsional spring, the width of fly leaf is for dodging half of clearance width.
Furthermore, the side wall of the second box body is symmetrically provided with positioning plates, a stirring assembly is rotatably connected between the positioning plates, a torsional spring is arranged at the rotating connection position, and the torsional spring is used for driving the stirring assembly to rotate downwards for resetting; the rotating end of the stirring assembly is connected with a traction mechanism, and the traction mechanism is used for driving the stirring assembly to rotate upwards and retract.
Furthermore, the traction mechanism comprises a first box body, a second rotating motor, a first traction rope, a sliding block, a sliding seat and a second traction rope; the top lateral wall of driving pipe is located to first box body, the internally mounted of first box body has the second to rotate the motor, the traction wheel is installed to the output that the second rotated the motor, the outer wall winding of traction wheel has first haulage rope, first haulage rope extends to the inside of driving pipe, the bottom link block of first haulage rope, the bottom inner wall of driving pipe is equipped with the slide, the slider is located between two slides, the bottom surface of slider is connected with the one end of second haulage rope, third haulage rope, the other end of second haulage rope is connected to a stirring subassembly, the other end of third haulage rope is connected to another stirring subassembly, second haulage rope, third haulage rope are used for driving two stirring subassemblies in step and upwards rotate and pack up.
Furthermore, the bottom surface of the second box body is provided with a concave containing groove, a central plate is contained in the containing groove, the middle part of the central plate is vertically provided with a connecting rod, the connecting rod penetrates through the second box body in a sliding manner and is fixedly connected with a sliding block at the top end, the central plate and the stirring assemblies synchronously receive and release movement, the central plate in a downward placing state is placed between the two stirring assemblies, and the central plate is used for cleaning impurities in the middle of the impurity settling area
The invention has the beneficial effects that: the ore particles floating on the surface and the tailings precipitated at the bottom can be thoroughly and quickly discharged, secondary operation of workers is not needed, the flotation efficiency is higher, fewer subsequent impurities are generated, the ore particle content is higher, and the whiteness is better.
Drawings
Figure 1 shows a schematic of the structure of an aerated flotation machine according to the invention;
FIG. 2 shows a schematic view of the discharge mechanism of the present invention;
FIG. 3 shows a schematic view of the conveyor belt structure of the present invention;
FIG. 4 shows a schematic view of the blending assembly of the present invention with the center flight in a stowed condition;
FIG. 5 is a schematic view showing a second case structure of the present invention;
FIG. 6 shows a schematic view of the stirring assembly of the present invention with the center screed lowered;
shown in the figure: 1. a gas delivery pipe; 11. an air guide joint; 2. a first rotating electric machine; 21. a drive tube; 3. a traction mechanism; 31. a first case; 32. a second rotating motor; 321. a traction wheel; 33. a first pull cord; 34. a slider; 35. a slide base; 36. a second pull cord; 37. a connecting rod; 38. a third pull cord; 4. a discharge mechanism; 41. a conveyor belt; 411. a first endless belt; 412. a second endless belt; 413. avoiding the gap; 42. a squeegee assembly; 421. a squeegee; 422. a movable plate; 43. a drive post; 5. a chassis; 51. a suspension zone; 52. a tailing settling zone; 53. a mineral particle floating area; 54. a feed tube; 6. a second box body; 61. an exhaust head; 62. positioning a plate; 63. a receiving groove; 7. a discharge control assembly; 8. a stirring assembly; 9. a central panel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
The high-whiteness superfine magnesium hydroxide flame retardant by a physical method is characterized in that: the magnesium hydroxide fire retardant is an inorganic fire retardant which is prepared by taking brucite as a raw material through crushing, grading and purifying, and has whiteness of more than 95 and granularity of 5-10 mu m.
In order to realize the granularity and whiteness, the following preparation method of the high-whiteness ultra-fine type physical magnesium hydroxide flame retardant is adopted, and the preparation method comprises the following steps: compared with a chemical method for preparing the magnesium hydroxide flame retardant, the physical method is simple and easy to implement, low in cost and low in chemical pollution;
s1, coarsely crushing brucite raw ore into ore grains of 2-3cm by using a jaw crusher;
s2, finely crushing the ore particles into superfine powder of 5 to 10 mu m by a superfine crusher;
s3, putting the superfine powder into a powder melting tank, adding water and stirring to form fine powder slurry;
and S4, conveying the fine powder slurry into an aeration type flotation machine, adding a foaming agent, and disturbing by blowing of the flotation machine to enable foams formed by the foaming agent to be adsorbed on the surfaces of ore particles and scraped out by a scraper, wherein tailing impurities fall into the bottom of the flotation machine and are discharged.
In order to realize the aeration flotation effect, the following aeration flotation machine for processing the high-whiteness superfine magnesium hydroxide fire retardant by a physical method is provided:
as shown in fig. 1, the aeration type flotation machine comprises a case 5, and the inside of the case 5 is sequentially provided with an ore particle floating area 53, a suspension area 51 and a tailing sedimentation area 52 from top to bottom; suspension liquid is stored in the suspension area, required ore particles carried by the foam float in an ore particle floating area, and tailings are precipitated in a tailing precipitation area at the bottom;
a transmission pipe 21 is arranged at the center line of the inside of the case 5, and the transmission pipe is of a hollow structure; the outer wall of the top of the transmission pipe 21 is vertically communicated with a gas pipe 1, and the gas pipe 1 is used for conveying high-pressure gas and foaming agent; the charging hole of the foaming agent is arranged on the gas pipe, the foaming agent and the high-pressure air are mixed and output, the foaming effect can be improved, and the consumption of the foaming agent can be reduced due to the auxiliary matching of the high-pressure air; the foaming agent is exemplified by any of phenols, heavy pyridines, alkyl sulfonic acid (sulfate) salts, carboxylic acids and soaps thereof, amines; the output end of the gas pipe 1 is provided with a gas guide joint 11 which is sleeved on the outer wall of the transmission pipe, and the position of the transmission pipe, which is opposite to the gas guide joint, is of a mesh structure;
the top end of the transmission pipe 21 is provided with a first rotating motor 2, the bottom end of the transmission pipe 21 is communicated with a second box body 6, the second box body 6 is arranged at the bottom inside the suspension area 51, the top surface of the second box body 6 is distributed with an exhaust head 61, and the exhaust head 61 is used for exhausting mixed gas upwards to generate foam; the mixed gas is a mixture of high-pressure gas and a foaming agent; the transmission pipe has two functions of guiding air and driving the second box body to rotate;
the two sides of the second box body 6 are rotatably connected with stirring components 8, and the stirring components 8 rotate upwards and are collected into the suspension area 51 and rotate downwards and extend into the tailing sedimentation area 52; in the flotation process, the stirring component is arranged in the suspension area, the second box body does not rotate, the stability of tailing sedimentation is ensured, and the stirring component does not occupy the space of the tailing sedimentation area; when the flotation is finished and the tailings are discharged, the stirring assembly extends into the tailings settling area to stir the settled tailings at the bottom; the tailings and the suspension are mixed, flowed and discharged, so that the discharge speed of the tailings is increased, the discharge is more thorough, the tailings are prevented from being accumulated to block an outlet, and workers do not need to clean the tailings subsequently;
the stirring assembly 8 is used for accelerating the tailing discharging speed; the stirring assembly comprises a stirring rod, a rotating column and a connecting plate, the transmission column is rotatably arranged between the two positioning plates, a torsion spring is arranged between the transmission column and the positioning plates, the stirring rod is vertically arranged on one side wall of the transmission column, the U-shaped stirring rod is sequentially a first rod body, a second rod body and a third rod body in an anticlockwise direction, the first rod body and the third rod body are vertically and symmetrically arranged at two ends of the second rod body to form a U shape, and the first rod body is vertically and fixedly connected with the rotating column; when the tail gas scraper rotates downwards, the second rod body is in contact with the bottom surface of the tailing sedimentation area, the third rod body is in contact with the inner side wall of the tailing sedimentation area, and the second rod body and the third rod body can perform wall scraping operation while stirring; the connecting plate is vertically arranged on one side of the rotary column, which is far away from the second rod body, the connecting plate is connected with a traction rope of the traction mechanism, and the traction rope drives the connecting plate to move so as to drive the stirring rod to integrally turn upwards;
a discharge control component 7 is arranged at the position of the side wall of the case 5 opposite to the tailing sedimentation area 52; the discharging control assembly exemplarily comprises an electric push rod, a sealing plate and a discharging pipe, wherein the sealing plate is used for blocking the discharging pipe, and the electric push rod drives the sealing plate to move up and down;
the top of the case 5 is horizontally provided with a discharging mechanism 4, the discharging mechanism 4 is arranged in the ore particle floating area 53, and the discharging mechanism 4 is used for circularly pushing out ore particles; the discharging mechanism can realize circular discharging without manual operation;
the coverage length and the width of the discharging mechanism 4 are the same as those of the ore particle floating area, and the transmission pipe vertically penetrates through the discharging mechanism; length, width homogeneous phase are the same, can guarantee to arrange material mechanism and can cover the ore grain floating area completely for the ore grain that floats on the surface can be pushed out rapidly, completely, and the unloading is fast, the unloading is thorough.
As shown in fig. 1-3, the discharging mechanism 4 includes a conveying belt 41, scraper assemblies 42 and transmission columns 43, the transmission columns 43 are disposed at two ends of the inside of the conveying belt 41, the conveying belt 41 includes a first endless belt 411, a second endless belt 412 and an avoiding gap 413, the first endless belt 411 and the second endless belt 412 are arranged in a mirror symmetry manner, the avoiding gap 413 is formed between the first endless belt 411 and the second endless belt 412 at intervals, the transmission pipe 21 vertically penetrates through the avoiding gap 413, the scraper assemblies 42 distributed in an annular shape are vertically disposed on the surfaces of the first endless belt 411 and the second endless belt 412, the scraper assemblies on the first endless belt 411 and the scraper assemblies on the second endless belt 412 are arranged oppositely, and the two oppositely disposed scraper assemblies are used for jointly and seamlessly pushing out ore particles; the first endless belt and the second endless belt which are arranged at intervals are designed on the transmission column, so that an avoidance gap can be formed, and the transmission pipe can vertically penetrate through the transmission column while the normal work of the conveying belt is ensured; the two endless belts can drive the two groups of scraper components to circularly move, the two groups of scraper components can be deformed and separated when colliding with the transmission pipe, and are reset and combined when being separated from the transmission pipe, so that the covering length of a single scraper component can be ensured to be the same as the width of an ore particle floating area, the pushing-out and blanking are more thorough, no middle gap exists, and the flowing consistency is ensured; the displacement distance of the scraper component is the same as the length of the ore particle floating area;
as shown in fig. 2, the scraper assembly 42 includes a scraper 421 and a movable plate 422, the scraper 421 is vertically disposed on the first endless belt 411 or the second endless belt 412, the length of the scraper 421 is the same as the width of the first endless belt 411, the inner end of the scraper 421 is rotatably connected to the movable plate 422, a torsion spring is mounted at the rotary connection, and the width of the movable plate 422 is half of the avoiding gap width 413; the scraper is arranged on the endless belt, the movable plate is arranged at the avoidance gap, and when the movable plate is abutted against the transmission pipe, the movable plate rotates to avoid, so that the scraper component can normally and circularly act; when the scraper blade subassembly leaves, the torsional spring drives the fly leaf and rotates and reset and the scraper blade aligns.
As shown in fig. 4 and 5, the side walls of the second box body 6 are symmetrically provided with positioning plates 62, the stirring assembly 8 is rotatably connected between the positioning plates 62, and a torsional spring is installed at the rotary connection position and is used for driving the stirring assembly 8 to rotate downwards for resetting; the rotating end of the stirring component 8 is connected with a traction mechanism 3, and the traction mechanism 3 is used for driving the stirring component 8 to rotate upwards for folding; can realize through drive mechanism that the stirring subassembly upwards rotates and packs up, utilize the torsional spring to realize that the stirring subassembly rotates downwards and stirs impurity.
As shown in fig. 4, the traction mechanism 3 includes a first box 31, a second rotating motor 32, a first traction rope 33, a slider 34, a sliding seat 35, and a second traction rope 36; the first box body 31 is arranged on the side wall of the top of the transmission pipe 21, a second rotating motor 32 is arranged inside the first box body 31, a traction wheel 321 is arranged at the output end of the second rotating motor 32, a first traction rope 33 is wound on the outer wall of the traction wheel 321, the first traction rope 33 extends into the transmission pipe 21, the bottom end of the first traction rope 33 is connected with a sliding block 34, a sliding seat 35 is arranged on the inner wall of the bottom of the transmission pipe 21, the sliding block 34 is arranged between the two sliding seats 35, the bottom surface of the sliding block 34 is connected with one end of a second traction rope 36 and one end of a third traction rope 38, the other end of the second traction rope 36 is connected to one stirring component, the other end of the third traction rope 38 is connected to the other stirring component, and the second traction rope 36 and the third traction rope 38 are used for synchronously driving the two stirring components to rotate upwards and retract; by utilizing the linkage fit of the three traction ropes, the traction mechanism can be optimally arranged in the transmission pipe and the first box body, so that the traction ropes cannot leak outwards, no redundant space is occupied, and the outer walls of the traction ropes are prevented from adsorbing impurities; the first traction rope only needs to drive the sliding block to act, so that the second traction rope and the third traction rope can be driven to act synchronously, one traction rope is taken for two, and the linkage effect is good; the haulage rope is provided with the leading wheel in each corner.
As shown in fig. 5 and 6, the bottom of the second box 6 is provided with a concave receiving groove 63, the receiving groove 63 is internally received with a central plate 9, the middle part of the central plate 9 is vertically provided with a connecting rod 37, the connecting rod 37 penetrates through the second box 6 in a sliding way and the top end is fixedly connected with a sliding block 34, the central plate 9 and the stirring assemblies 8 synchronously receive and release, the central plate 9 in a downward state is arranged between the two stirring assemblies 8, and the central plate 9 is used for cleaning impurities in the middle part of an impurity precipitation area; through the matching of the central plate and the stirring assembly, the impurity settling zone can be effectively stirred, the mixed discharging effect is improved, the stacking is avoided, the inner side wall and the bottom of the impurity settling zone can be thoroughly cleaned, and the problem of impurity wall hanging is solved; the central plate synchronously acts through the connecting rods, can be retracted and unfolded simultaneously, and is reliable in movement.
The invention is implemented as follows:
a flotation stage: adding the suspension liquid communicated with mineral aggregate into the case 5 through a feeding pipe 54; the central plate 9 is received in the receiving groove 63, and the two stirring assemblies 8 are upwards received;
the gas transmission pipe 1 sends high-pressure gas and a foaming agent into the transmission pipe 21, and then the high-pressure gas and the foaming agent are upwards discharged through the second box body and the exhaust head 61, a large amount of foam is generated in the suspension liquid under the action of the high-pressure gas and the foaming agent, the foam can drive lighter ore particles to upwards move to an ore particle floating area when floating upwards, and heavier tailing impurities are precipitated in a tailing precipitation area;
conveying and driving the scraper component to circularly move, pushing out the ore particles on the surface of the ore particle floating area from inside to outside, and discharging the ore particles into a discharging groove through a guide chute at an outlet in a circulating manner;
a tailing cleaning stage: after flotation is finished, air supply is stopped, the discharge mechanism stops working, the second rotating motor releases the first traction rope, the two groups of stirring assemblies rotate downwards under the driving of the torsion spring, the sliding block slides downwards to push out the central plate downwards, and finally the central plate and the stirring assemblies are attached and inserted into a tailing sedimentation area;
start first rotation motor, open ejection of compact control subassembly, first rotation motor drives the second box body and rotates, and then drives stirring subassembly, well core plate and rotate, realizes scraping the wall and stirs the mixture, and the tailing mixes the outflow with the suspension.
It should be noted that, in this document, if there are first and second, etc., relational terms are only used for distinguishing one entity or operation from another entity or operation, and there is no necessarily any requirement or suggestion that any actual relation or order exists between the entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The aeration type flotation machine for processing the high-white superfine magnesium hydroxide fire retardant by the physical method is characterized in that: the preparation method of the magnesium hydroxide flame retardant comprises the following steps:
s1, coarsely crushing brucite raw ore into ore grains of 2-3cm by using a jaw crusher;
s2, finely crushing the ore particles into superfine powder of 5 to 10 mu m by a superfine crusher;
s3, putting the superfine powder into a powder melting tank, adding water and stirring to form fine powder slurry;
s4, conveying the fine powder slurry into an aeration type flotation machine, adding a foaming agent, utilizing the blowing disturbance of the flotation machine to enable foams formed by the foaming agent to be adsorbed on the surfaces of ore particles and scraped out through a scraper blade, and enabling tailing impurities to fall into the bottom of the flotation machine and be discharged;
in S4, the aeration type flotation machine comprises a case, and an ore particle floating area, a suspension area and a tailing sedimentation area are sequentially arranged in the case from top to bottom;
a transmission pipe is arranged at the central line of the inside of the case, and the side wall of the top of the transmission pipe is vertically communicated with a gas pipe which is used for conveying high-pressure gas and foaming agent; the top end of the transmission pipe is provided with a first rotating motor;
the bottom end of the transmission pipe is communicated with a second box body, the second box body is arranged at the inner bottom of the suspension area, and exhaust heads are distributed on the top surface of the second box body and used for exhausting mixed gas upwards to generate foam; the two sides of the second box body are rotatably connected with stirring components, and the stirring components rotate upwards to be accommodated into the suspension area and rotate downwards to extend into the tailing sedimentation area; the stirring assembly is used for accelerating the discharge speed of tailings, and a discharge assembly is arranged at the position of the side wall of the case opposite to the tailing sedimentation area; the top of the case is horizontally provided with a discharging mechanism, the discharging mechanism is arranged in the ore particle floating area, and the discharging mechanism is used for circularly pushing out ore particles;
the coverage area of the discharging mechanism is the same as the surface area of the ore particle floating area, and the transmission pipe vertically penetrates through the discharging mechanism;
the side wall of the second box body is symmetrically provided with positioning plates, a stirring assembly is rotatably connected between the positioning plates, a torsional spring is arranged at the rotating connection position, and the torsional spring is used for driving the stirring assembly to rotate downwards for resetting; the rotating end of the stirring assembly is connected with a traction mechanism, and the traction mechanism is used for driving the stirring assembly to rotate upwards and retract;
in the flotation process, the stirring component is arranged in the suspension area, the second box body does not rotate, the stability of tailing sedimentation is ensured, and the stirring component does not occupy the space of the tailing sedimentation area; when the flotation is finished and the tailings are discharged, the stirring component extends into the tailing sedimentation area to stir the sedimentated tailings at the bottom; the tailings and the suspension liquid are mixed, flow and discharged, so that the discharge speed of the tailings is increased;
the stirring assembly comprises a stirring rod, a rotating column and a connecting plate, the transmission column is rotatably arranged between the two positioning plates, a torsion spring is arranged between the transmission column and the positioning plates, the stirring rod is vertically arranged on one side wall of the transmission column and comprises a first rod body, a second rod body and a third rod body, the first rod body and the third rod body are vertically and symmetrically arranged at two ends of the second rod body to form a U shape, and the first rod body is vertically and fixedly connected with the rotating column; when the tail gas scraper rotates downwards, the second rod body is in contact with the bottom surface of the tailing sedimentation area, the third rod body is in contact with the inner side wall of the tailing sedimentation area, and the second rod body and the third rod body can perform wall scraping operation while stirring; the connecting plate is located perpendicularly and is changeed one side that the post deviates from the second body of rod, and the connecting plate is connected with drive mechanism's haulage rope, and the haulage rope drives the connecting plate motion and can drive the whole upwards upset of puddler.
2. The aeration type flotation machine for processing the high-whiteness ultrafine physical magnesium hydroxide fire retardant according to claim 1 is characterized in that: it includes conveyer belt, scraper blade subassembly and transmission post to arrange the material mechanism, the inside both ends of conveyer belt are equipped with the transmission post, the conveyer belt includes first clitellum, second clitellum and dodges the clearance, first clitellum, second clitellum mirror symmetry set up, the interval sets up between first clitellum, the second clitellum and forms and dodges the clearance, the clearance is dodged in the vertical running through of transmission pipe, the surface of first clitellum, second clitellum all is equipped with the scraper blade subassembly that the annular distributes perpendicularly, set up relatively between the scraper blade subassembly on the first clitellum, the scraper blade subassembly on the second clitellum, two relative scraper blade subassemblies that set up are used for jointly seamlessly releasing the ore grain.
3. The aerated flotation machine for processing the high-whiteness ultra-fine type magnesium hydroxide fire retardant by the physical method according to claim 2, which is characterized in that: the scraper blade subassembly includes scraper blade and fly leaf, the scraper blade is located on first clitellum or the second clitellum perpendicularly, the length of scraper blade is the same with the width of first clitellum, the inner of scraper blade is rotated and is connected the fly leaf and rotate the junction and install the torsional spring, the width of fly leaf is for dodging half of clearance width.
4. The aeration type flotation machine for processing the high-whiteness ultra-fine type magnesium hydroxide fire retardant by the physical method according to claim 3, which is characterized in that: the traction mechanism comprises a first box body, a second rotating motor, a first traction rope, a sliding block, a sliding seat and a second traction rope; the top lateral wall of driving pipe is located to first box body, the internally mounted of first box body has the second to rotate the motor, the traction wheel is installed to the output that the second rotated the motor, the outer wall winding of traction wheel has first haulage rope, first haulage rope extends to the inside of driving pipe, the bottom link block of first haulage rope, the bottom inner wall of driving pipe is equipped with the slide, the slider is located between two slides, the bottom surface of slider is connected with the one end of second haulage rope, third haulage rope, the other end of second haulage rope is connected to a stirring subassembly, the other end of third haulage rope is connected to another stirring subassembly, second haulage rope, third haulage rope are used for driving two stirring subassemblies in step and upwards rotate and pack up.
5. The aerated flotation machine for processing the high-whiteness ultra-fine type magnesium hydroxide fire retardant by the physical method according to claim 4, which is characterized in that: the bottom surface of the second box body is provided with a concave containing groove, a central plate is contained in the containing groove, a connecting rod is vertically arranged in the middle of the central plate, the connecting rod penetrates through the second box body in a sliding mode, the top end of the connecting rod is fixedly connected with a sliding block, the central plate and the stirring assemblies are synchronously contained and moved, the central plate in a lowering state is arranged between the two stirring assemblies, and the central plate is used for cleaning impurities in the middle of an impurity settling area.
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| CN114029128B (en) * | 2021-11-08 | 2023-01-31 | 矿冶科技集团有限公司 | Graphite ore crushing, grinding and flotation integrated equipment and method |
| CN115838257A (en) * | 2022-12-12 | 2023-03-24 | 大连亚泰科技新材料股份有限公司 | A2-grade fireproof material prepared from brucite tailings and preparation method thereof |
| CN117482855B (en) * | 2023-12-29 | 2024-03-22 | 江苏卓峰新材料科技有限公司 | Preparation system for magnesium hydroxide flame retardant |
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