CN113019922A - Winnowing pretreatment device for coarse whiting micro powder - Google Patents

Abstract

The invention provides a winnowing pretreatment device for coarse whiting micro powder, which comprises a drying and scattering device and a primary winnowing device, wherein the drying and scattering device comprises a roller frame and a roller rotationally arranged on the roller frame, one end of the roller is a first feeding hole, the other end of the roller is a first discharging hole, a heating mechanism is arranged on the roller, the primary winnowing device comprises a winnowing box, a second feeding hole communicated with the first discharging hole is formed in one side of the upper end of the winnowing box, a blanking mechanism is arranged in the winnowing box, a first winnowing mechanism is arranged on the blanking mechanism, a second winnowing mechanism with upward wind power is arranged in the winnowing box, a second discharging hole is formed in the upper end of the other side of the winnowing box, and the first winnowing mechanism and the second winnowing mechanism are both communicated with a wind supply mechanism. The invention can carry out preliminary winnowing on the calcium powder, and can carry out dehumidification and agglomeration crushing on the calcium powder which is winnowed, thereby greatly improving the winnowed speed and quality and accelerating the production speed of products.

Description

Winnowing pretreatment device for coarse whiting micro powder

Technical Field

The invention relates to the technical field of heavy calcium powder production and processing, in particular to a winnowing pretreatment device for heavy calcium micro powder.

Background

The heavy calcium powder is generally used as a filler, is widely applied to daily chemical industries such as artificial floor tiles, rubber, plastics, papermaking, coatings, paints, printing ink, cables, building products, food, medicine, textile, feed, toothpaste and the like, is used as a filler to increase the volume of products and reduce the production cost, and in the screening process of the existing heavy calcium powder, the sorting of common materials is to select materials with different sizes by a classifying screen. Particularly, for the fine powder, the particle diameter is small, and the classification screen is difficult to screen.

The calcium powder is also treated by the ultramicro turbine classifier, but the existing winnowing device does not have equipment for pretreating the calcium powder in the early stage when the heavy calcium micro powder is winnowed, for example, whether the calcium powder can be agglomerated or not and the coarse particles of the calcium powder entering the winnowing equipment are more, so that the micro powder screening speed is influenced, and the like, so that the equipment capable of pretreating the heavy calcium powder is urgently needed.

Disclosure of Invention

In view of this, the invention provides an air separation pretreatment device for coarse whiting micro powder, which can perform preliminary air separation on calcium powder, and can perform dehumidification and caking crushing on the air-separated calcium powder.

In order to solve the technical problems, the invention provides a winnowing pretreatment device for coarse whiting micro powder, which comprises a drying and scattering device and a primary winnowing device, wherein the drying and scattering device comprises a roller frame and a roller rotationally arranged on the roller frame, one end of the roller is a first feeding hole, the other end of the roller is a first discharging hole, a heating mechanism is arranged on the roller, the primary winnowing device comprises a winnowing box, a second feeding hole communicated with the first discharging hole is formed in one side of the upper end of the winnowing box, a blanking mechanism is arranged in the winnowing box, a first winnowing mechanism is arranged on the blanking mechanism, a second winnowing mechanism with upward wind power is arranged in the winnowing box, a second discharging hole is formed in the upper end of the other side of the winnowing box, and the first winnowing mechanism and the second winnowing mechanism are both communicated with a wind.

Furthermore, a first rotary bearing is arranged on the roller frame, the roller is arranged on the first rotary bearing, a spiral feeding plate is arranged on the side wall of an inner cavity of the roller, a ring gear is arranged on the outer side of the roller, and a first driving mechanism in transmission connection with the ring gear is arranged on the roller frame.

Further, heating mechanism includes the sleeve that the cylinder middle part outside set up, telescopic both ends pass through the second slew bearing and set up on the cylinder, be the heating chamber between sleeve and the cylinder, telescopic upper end sets up the air inlet, telescopic lower extreme sets up the gas outlet, air inlet and gas outlet pass through the circulating line intercommunication, last configuration heating cabinet and the power fan of circulating line, set up the heating resistor silk in the heating cabinet.

Further, establish through the fourth slewing bearing rotation on the first feed inlet and put into the material pipeline, it adds the mechanism and prevents that the caking adds the mechanism to set up the miropowder on the material pipeline, the miropowder adds the first support that the mechanism set up on including the material pipeline, set up first funnel on the first support, the lower extreme of first funnel stretches into in the material pipeline, prevent that the caking adds the second support that the mechanism set up on including the material pipeline, set up the second funnel on the second support, the lower extreme of second funnel stretches into in the material pipeline, set up the broken pearl of ball shape in the second funnel, first discharge gate sets up feed mechanism, the last spheroid recovery mechanism that sets up of feed mechanism, spheroid recovery mechanism is connected with the second funnel.

Further, feed mechanism includes the unloading pipe of the L type that first discharge gate set up, the unloading pipe upper end is connected with first discharge gate through third slewing bearing, the lower extreme intercommunication branch workbin of unloading pipe, divide workbin lower extreme and second feed inlet intercommunication, spheroid recovery mechanism includes the discharging pipe that the side slope of branch workbin set up downwards, the tip and the lifting machine of discharging pipe are connected, it sets up branch material grid to divide the workbin internal slope, divide the diameter that the material grid clearance is less than broken pearl, divide the material grid to pass from the discharging pipe is inside to get into in the lifting machine, set up in the discharging pipe and prevent that miropowder from getting into the blowback mechanism of lifting machine.

Furthermore, the blowback mechanism comprises an annular frame arranged in the discharge pipe, a plurality of first nozzles are arranged on the annular frame, the first nozzles are communicated with a first air supply pipeline, and the first air supply pipeline is communicated with the air supply mechanism.

Furthermore, blanking mechanism includes a plurality of flitch down along "it" font setting, the flitch upper end sets up the ring cover down, set up the back shaft that passes the ring cover in the winnowing box, ring cover and back shaft swivelling joint, it sets up the spacing groove to correspond the ring cover on the back shaft, the both sides of flitch down set up the side shield, the flitch down that corresponds every side in the winnowing box sets up swing mechanism.

Further, swing mechanism includes the transmission shaft of vertical setting, the upper end of transmission shaft passes selection by winnowing box top, the selection by winnowing box top corresponds the transmission shaft and sets up the guide cylinder, crank link mechanism is connected to the upper end of transmission shaft, crank link mechanism is connected with the swing motor transmission, bottom in the selection by winnowing box sets up the surge drum, the lower extreme of transmission shaft inserts in the surge drum, guide cylinder and transmission shaft coaxial center set up, set up bearing spring in the surge drum, the upper end of surge drum sets up round elasticity dust belt, the upper end and the transmission shaft bonding in elasticity dust belt, the rotatory connecting rod that sets up in lower extreme side of lower bolster, the other end and the transmission shaft swivelling joint of connecting rod.

Further, first selection by winnowing mechanism includes the vaulting pole of the lower surface downward setting of flitch down, the lower extreme of vaulting pole sets up the pressure pipe, set up a plurality of second shower nozzles on the pressure pipe, the orientation of blowing of second shower nozzle is for supporting the lower flitch ejection of compact side of this second shower nozzle, the pressure pipe passes through second supply-air duct and air feed mechanism intercommunication.

Further, the second winnowing mechanism includes a plurality of toroidal tubes that the selection by winnowing incasement set up, and a plurality of toroidal tubes are concentric, and the intercommunication sets up between a plurality of toroidal tubes, the toroidal tube passes through third supply-air duct and air feed mechanism intercommunication, the upper end of toroidal tube sets up a plurality of third shower nozzle.

Furthermore, the bottom of the winnowing box is of a conical structure, a blanking channel is arranged at the center of the bottom of the winnowing box, a conveying belt is arranged below the blanking channel, the second discharge hole is communicated with a bag-type dust collector or a turbine classifier, and an axial flow fan is arranged at the second discharge hole.

Furthermore, the first air supply pipeline, the second air supply pipeline and the third air supply pipeline are communicated with an air supply mechanism through an air supply device, and the air supply mechanism comprises an air tank and an air pump communicated with the air tank.

The technical scheme of the invention has the following beneficial effects:

the calcium powder after grinding enters into the cylinder through the first feed inlet, and the cylinder rotates and makes calcium powder and broken pearl think first discharge gate motion, and this in-process heating mechanism heats the cylinder inside for the calcium powder that probably has the clot is broken again, returns the powder state after the drying, and it is convenient for carry out the selection by winnowing to not cohere between the calcium powder. Calcium powder and broken pearl enter into preliminary wind selector from first discharge gate and carry out the selection by winnowing, can select the calcium powder of different specifications through the wind speed of controlling first wind selection mechanism and second wind selection mechanism, and qualified calcium powder discharges through the second discharge gate, and the calcium powder of different specifications is further selected separately through sack cleaner filtration or turbine classifier.

Be provided with feed mechanism and spheroid between stoving scattering device and the preliminary sorting unit and retrieve the mechanism, retrieve broken pearl, filter out broken pearl in feed mechanism to in sending to spheroid recovery mechanism, transport broken pearl again to first feed inlet through spheroid recovery mechanism and add the cylinder.

The invention can carry out preliminary winnowing on the calcium powder, and can carry out dehumidification and agglomeration crushing on the calcium powder which is winnowed, thereby greatly improving the winnowed speed and quality and accelerating the production speed of products.

Drawings

FIG. 1 is a cross-sectional view of a drying and scattering device of the present invention;

FIG. 2 is a schematic structural view of a material distributing mechanism and a ball recovering mechanism according to the present invention;

FIG. 3 is a schematic view of the construction of the distribution grid of the present invention;

fig. 4 is a schematic structural view of the preliminary winnowing device of the present invention;

FIG. 5 is a schematic structural diagram of a blanking plate according to the present invention;

fig. 6 is a schematic structural view of a second air separation mechanism of the present invention.

1. A discharging pipe; 2. a third slew bearing; 3. a first discharge port; 4. a first slew bearing; 5. a ring gear; 6. a circulation pipe; 7. a heating box; 8. a powered fan; 9. an air inlet; 10. a sleeve; 11. a heating cavity; 12. a drum; 13. a feeding plate; 14. a first bracket; 15. a first hopper; 16. a second bracket; 17. a second hopper; 18. a first drive mechanism; 19. an air outlet; 20. a roller frame; 21. a first feed port; 22. a fourth slew bearing; 23. a material distributing box; 24. a material distribution grid; 25. a first nozzle; 26. an annular frame; 27. a hoist; 28. a second feed port; 29. crushing the beads; 30. a swing motor; 31. a crank link mechanism; 32. a discharge pipe; 33. a winnowing box; 34. a second discharge port; 35. an axial flow fan; 36. a guide cylinder; 37. a drive shaft; 38. a connecting rod; 39. sleeving a ring; 40. a support shaft; 41. a blanking plate; 42. a stay bar; 43. a pressure pipe; 44. a second nozzle; 45. a third spray head; 46. an annular tube; 47. an elastic dust-proof belt; 48. a damper cylinder; 49. a load bearing spring; 50. a blanking channel; 51. a limiting groove; 52. a side dam; 53. a second slew bearing; 54. a feeding pipeline.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

As shown in fig. 1-6:

this embodiment provides a selection by winnowing preprocessing device of heavy calcium miropowder, including drying and breaking up device and preliminary selection by winnowing device, the drying is broken up the device and is included drum rack 20 and rotatory cylinder 12 that sets up on drum rack 20, the one end of cylinder 12 is first feed inlet 21, the other end of cylinder 12 is first discharge gate 3, set up heating mechanism on the cylinder 12, preliminary selection by winnowing device includes selection by winnowing box 33, selection by winnowing box 33 upper end one side sets up the second feed inlet 28 with 3 intercommunications of first discharge gate, set up blanking mechanism in the selection by winnowing box 33, set up first selection by winnowing mechanism in the blanking mechanism, set up the ascending second selection by winnowing mechanism of wind-force in box 33, selection by winnowing box 33 opposite side upper end sets up second discharge gate 34, first selection by winnowing mechanism and second selection by winnowing mechanism all with supply wind mechanism intercommunication.

Specifically, the whole device is divided into two layers, the integral structure is not shown in the figure, the roller frame is of a second-layer structure, the drying and scattering device is arranged on the second-layer structure, the preliminary winnowing device is arranged on the ground, and the distributing mechanism is positioned between the two devices. The vertical column is arranged on the roller frame and used for rotatably supporting the roller, after the roller is obliquely arranged, the calcium powder and the broken beads roll and move towards the first discharge port in the rotating process, and finally the calcium powder is discharged and enters the material distributing mechanism to be distributed, and then the calcium powder enters the primary winnowing mechanism. Can accomplish the less selection by winnowing of specification requirement in the preliminary sorting mechanism, calcium powder goes out the back from the second discharge gate and directly filters through the sack this moment, but the second discharge gate also can be connected with turbine classifier, can also be to the further sorting of calcium powder after preliminary selection by winnowing like this. Unqualified calcium powder discharged from the bottom of the air separation tank enters a grinding mechanism to be continuously ground, and then air separation is carried out.

According to one embodiment of the present invention, as shown in figure 1,

the drum rack 20 is provided with a first rotary bearing 4, the drum 12 is arranged on the first rotary bearing 4, the side wall of the inner cavity of the drum 12 is provided with a spiral feeding plate 13, the outer side of the drum 12 is provided with a ring gear 5, and the drum rack 20 is provided with a first driving mechanism 18 in transmission connection with the ring gear 5. The drum is arranged on the drum frame through the first rotary bearing, so that the drum can rotate, the first driving mechanism is arranged on the drum frame, the first driving mechanism can be driven by a motor, and the drum is rotated by driving the ring gear on the drum. The direction of rotation of cylinder will cooperate with the spiral direction of feed plate, and calcium powder and broken pearl move together in the passageway of feed plate interval department like this, if exist and condense massive calcium powder after the tide and smash by the collision of broken pearl for calcium powder is not sticky, is convenient for subsequent selection by winnowing.

According to one embodiment of the present invention, as shown in figure 1,

heating mechanism includes the sleeve 10 that cylinder 12 middle part outside set up, the both ends of sleeve 10 are passed through second slew bearing 53 and are set up on cylinder 12, be heating chamber 11 between sleeve 10 and the cylinder 12, the upper end of sleeve 10 sets up air inlet 9, the lower extreme of sleeve 10 sets up gas outlet 19, air inlet 9 and gas outlet 19 pass through circulating line 6 intercommunication, configuration heating cabinet 7 and power fan 8 on the circulating line 6, set up the heating resistor silk in the heating cabinet 7. The heating mechanism heats the interior of the roller, and is matched with the crushing beads to crush and dry the caking calcium powder. The sleeve is established on the cylinder through the second slewing bearing cover, can set up the stand on the cylinder frame and carry on spacingly to the sleeve, prevents it along with the cylinder rotates. The mode of heating is realized through the resistance wire, and circulating line communicates gas outlet and air inlet on with the sleeve, sets up the power fan that the drive air flows on circulating line to and the heating cabinet to air heating, the air flows in circulating line through power fan, realizes the heating to the cylinder after the heating.

According to one embodiment of the present invention, as shown in figure 1,

put into material pipeline 54 through the rotation of fourth slewing bearing 22 on the first feed inlet 21, it adds the mechanism and prevents that the caking adds the mechanism to set up miropowder on the material pipeline 54, miropowder adds the first support 14 that the mechanism set up on the material pipeline 54 including the material pipeline 54, set up first funnel 15 on the first support 14, the lower extreme of first funnel 15 stretches into in the material pipeline 54, prevent caking and add the second support 16 that the mechanism set up on the material pipeline 54 including the material pipeline 54, set up second funnel 17 on the second support 16, the lower extreme of second funnel 17 stretches into in the material pipeline 54, set up the broken pearl 29 of ball shape in the second funnel 17, first discharge gate 3 sets up feed divider, the last spheroid recovery mechanism that sets up of feed divider, spheroid recovery mechanism is connected with second funnel 17. The feeding pipeline is mainly used for preventing the roller in the roller and wind power of primary air separation from flying out of the first feeding hole, so that calcium powder is taken out. Therefore, the end part of the feeding pipeline can be directly sealed, or a fan blowing inwards is arranged. The micro powder adding mechanism and the anti-caking adding mechanism are both arranged on the feeding pipeline, and calcium powder or broken beads are added in a funnel mode. The feeding pipeline can not rotate, so that the feeding pipeline is connected with the first feeding hole through a fourth rotary support, and the roller frame is provided with a stand column for supporting the feeding pipeline.

According to one embodiment of the present invention, as shown in figures 1-3,

feed mechanism includes the unloading pipe 1 of the L type that first discharge gate 3 set up, unloading pipe 1 upper end is connected with first discharge gate 3 through third slewing bearing 2, unloading pipe 1's lower extreme intercommunication divides workbin 23, divide workbin 23 lower extreme and second feed inlet 28 intercommunication, the spheroid is retrieved the mechanism and is included divide the downward discharging pipe 32 that sets up of side slope of workbin 23, the tip and the lifting machine 27 of discharging pipe 32 are connected, divide workbin 23 internal slope to set up branch material grid 24, divide the diameter that branch material grid 24 clearance is less than broken pearl 29, branch material grid 24 is from inside getting into lifting machine 27 of discharging pipe 32 in, set up the blowback mechanism that prevents that miropowder from getting into lifting machine 27 in the discharging pipe 32. The material distributing mechanism separates the calcium powder from the crushed beads, and although the material distributing mechanism is not arranged, the falling noise of the crushed beads in the air separation box is too large and the equipment is easy to damage, so the material distributing mechanism is arranged. Calcium powder and broken pearl come out in the back gets into feed mechanism from the cylinder in, set up branch material grid in dividing the workbin, calcium powder directly passes the grid and falls to get into the selection by winnowing case through the second feed inlet, and the diameter of broken pearl is greater than the spacing distance of grid, therefore broken pearl rolls through the branch material grid of slope to pass in the discharging pipe gets into the lifting machine, and add broken pearl to the funnel through the lifting machine. In order to prevent the broken beads from falling accidentally, the height of the grid plate at the outermost side is larger than that of the grid plate at the inner side, or the width of the discharge pipe is equal to that of the material distribution box, so that the grid plates are fully arranged in the material distribution box, and no gap for falling of the broken beads exists.

The back blowing mechanism comprises an annular frame 26 arranged in a discharge pipe 32, a plurality of first spray heads 25 are arranged on the annular frame 26, the first spray heads 25 are communicated with a first air supply pipeline, and the first air supply pipeline is communicated with the air supply mechanism. The back flushing mechanism mainly prevents the calcium powder from entering the elevator through the discharge pipe, which causes the waste of the calcium powder and the pollution to the environment. The blowback mechanism supplies air through the air feed mechanism to set up first shower nozzle and inwards blow on the annular frame, make the calcium powder that drifts over come back by blowing, because unloading pipe and roller bearing sealing connection, and first feed inlet has the shutoff of pan feeding pipeline, the calcium powder that is blown back can only enter into the wind selector in.

According to one embodiment of the present invention, as shown in figures 4-6,

the blanking mechanism comprises a plurality of blanking plates 41 arranged along the shape of the Chinese character 'zhi', the upper ends of the blanking plates 41 are provided with ring sleeves 39, supporting shafts 40 penetrating the ring sleeves 39 are arranged in the winnowing boxes 33, the ring sleeves 39 are rotatably connected with the supporting shafts 40, limiting grooves 51 are arranged on the supporting shafts 40 corresponding to the ring sleeves 39, side baffles 52 are arranged on two sides of the blanking plates 41, and a swinging mechanism is arranged in the winnowing boxes 33 corresponding to the blanking plates 41 on each side. The blanking mechanism mainly disperses the calcium powder, so that the winnowing is convenient. Flitch zigzag is arranged down, and the tip of unloading board passes through ring cover and back shaft cooperation for the unloading board can rotate round the back shaft, and swing mechanism is connected the back with the unloading board like this, can drive the unloading board and shake from top to bottom, makes things convenient for the calcium powder landing, and conveniently raises the calcium powder, does benefit to the selection by winnowing.

In one embodiment of the present invention, as shown in figures 4 and 5,

swing mechanism includes the transmission shaft 37 of vertical setting, the upper end of transmission shaft 37 is passed winnowing box 33 top, winnowing box 33 top corresponds transmission shaft 37 and sets up guide cylinder 36, crank link mechanism 31 is connected to the upper end of transmission shaft 37, crank link mechanism 31 is connected with swing motor 30 transmission, bottom in the winnowing box 33 sets up damper cylinder 48, the lower extreme of transmission shaft 37 inserts in damper cylinder 48, guide cylinder 36 and transmission shaft 37 set up with the axle center, set up bearing spring 49 in the damper cylinder 48, damper cylinder 48's upper end sets up round elasticity dustproof area 47, elasticity dustproof area 47's upper end bonds with transmission shaft 37, flitch 41 lower extreme side is rotatory to be set up connecting rod 38 down, connecting rod 38's the other end and transmission shaft 37 swivelling joint. The swing mechanism mainly swings the lower blanking plate up and down and is realized through the transmission shaft, the lower end of the transmission shaft is supported through the bearing spring, the upper end of the transmission shaft penetrates through the guide cylinder and is connected with the crank-link mechanism, the transmission shaft swings up and down under the driving of the swing motor, the transmission shaft is connected with the blanking plate on the corresponding side through the connecting rod, the connecting rod is pulled in the process of swinging up and down through the transmission shaft, and the lower end of the blanking plate is pulled through the connecting rod, so that the blanking plate can shake up and down. The length of pull rod can be reserved more, avoids the transmission shaft pulling range to lead to the unable cooperation operation of three greatly. The elastic dust-proof belt on the shock-absorbing cylinder prevents the calcium powder from entering the shock-absorbing cylinder and increases the friction force.

In one embodiment of the present invention, as shown in figures 4 and 6,

the lower surface that first air classification mechanism includes flitch 41 down is the vaulting pole 42 of setting downwards, the lower extreme of vaulting pole 42 sets up pressure pipe 43, set up a plurality of second shower nozzles 44 on the pressure pipe 43, the direction of blowing of second shower nozzle 44 is for supporting the flitch 41 ejection of compact side of this second shower nozzle 44, pressure pipe 43 passes through second supply-air duct and air feed mechanism intercommunication.

The second winnowing mechanism includes a plurality of ring pipes 46 that set up in winnowing box 33, and a plurality of ring pipes 46 are concentric, and the intercommunication sets up between a plurality of ring pipes 46, ring pipe 46 passes through third supply-air duct and air feed mechanism intercommunication, ring pipe 46's upper end sets up a plurality of third shower nozzle 45.

The two winnowing mechanisms realize operation by air supply of the air supply mechanism. First air classification mechanism carries out the selection by winnowing to the calcium powder that the lower feed plate shake was raised, is about to these calcium powders and blows, floats in the air classification case, and second air classification mechanism is located the well lower part of air classification case, also is the below of blanking mechanism, upwards blows through the third shower nozzle that arranges the setting for the calcium powder that floats upwards flies to enter into the second discharge gate in, and can carry out last step selection by winnowing to the calcium powder of whereabouts.

In one embodiment of the present invention, as shown in figure 4,

the bottom of the winnowing box 33 is of a conical structure, a blanking channel 50 is arranged at the center of the bottom of the winnowing box 33, a conveying belt is arranged below the blanking channel 50, the second discharge port 34 is communicated with a bag-type dust collector or a turbine classifier, and an axial flow fan 35 is arranged at the second discharge port 34. After the calcium powder enters into the second discharge gate, based on original atmospheric pressure and through axial fan's effect, discharge winnowing box that can be more quick to communicate it with sack cleaner or turbine grader according to the demand. The bottom of winnowing box is the toper structure, conveniently discharges unqualified calcium powder downwards, and these calcium powders are sent to the grinding machine through the conveyer belt and are continued to be ground.

In one embodiment of the present invention,

the first air supply pipeline, the second air supply pipeline and the third air supply pipeline are communicated with the air supply mechanism through the air supply device, and the air supply mechanism comprises an air tank and an air pump communicated with the air tank. Air feed mechanism has adopted air pump and gas pitcher to realize, and the air feeder can carry out the selective control to the wind speed, and wherein need notice second supply air duct and second shower nozzle intercommunication, but the second shower nozzle is connected with lower flitch, and lower flitch can the luffing motion, therefore second supply air duct need adopt hose or front end stereoplasm pipeline rear end hose.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides a selection by winnowing preprocessing device of heavy calcium miropowder which characterized in that: including drying and breaking up device and preliminary wind selector, drying and breaking up device includes the cylinder frame and the rotatory cylinder that sets up on the cylinder frame, the one end of cylinder is first feed inlet, the other end of cylinder is first discharge gate, set up heating mechanism on the cylinder, preliminary wind selector includes the winnowing box, winnowing box upper end one side sets up the second feed inlet with first discharge gate intercommunication, set up blanking mechanism in the winnowing box, set up first winnowing mechanism in the blanking mechanism, set up wind-force second winnowing mechanism up in the winnowing box, winnowing box opposite side upper end sets up the second discharge gate, first winnowing mechanism and second winnowing mechanism all communicate with air feed mechanism.

2. The air separation pretreatment device of the coarse whiting micropowder of claim 1, wherein: the feeding device is characterized in that a first rotary bearing is arranged on the roller frame, the roller is arranged on the first rotary bearing, a spiral feeding plate is arranged on the side wall of an inner cavity of the roller, a ring gear is arranged on the outer side of the roller, and a first driving mechanism in transmission connection with the ring gear is arranged on the roller frame.

3. The air separation pretreatment device of the coarse whiting micropowder of claim 1, wherein: the heating mechanism comprises a sleeve arranged outside the middle of the roller, the two ends of the sleeve are arranged on the roller through second rotary bearings, a heating cavity is arranged between the sleeve and the roller, an air inlet is formed in the upper end of the sleeve, an air outlet is formed in the lower end of the sleeve, the air inlet and the air outlet are communicated through a circulating pipeline, a heating box and a power fan are arranged on the circulating pipeline, and heating resistance wires are arranged in the heating box.

4. The air separation pretreatment device of the coarse whiting micropowder of claim 1, wherein: put into the material pipeline through the rotatory setting of fourth slew bearing on the first feed inlet, it adds the mechanism and prevents that the caking adds to set up the miropowder on the material pipeline, the miropowder adds the first support that the mechanism set up on including the material pipeline, set up first funnel on the first support, the lower extreme of first funnel stretches into in the material pipeline, prevent that the caking adds the second support that the mechanism set up on including the material pipeline, set up the second funnel on the second support, the lower extreme of second funnel stretches into in the material pipeline, set up the broken pearl of spherical in the second funnel, first discharge gate sets up feed mechanism, the last spheroid recovery mechanism that sets up of feed mechanism, spheroid recovery mechanism is connected with the second funnel.

5. The air separation pretreatment device of the coarse whiting micropowder of claim 1, wherein: feed mechanism includes the unloading pipe of the L type that first discharge gate set up, the unloading pipe upper end is connected with first discharge gate through third slewing bearing, the lower extreme intercommunication branch workbin of unloading pipe, divide workbin lower extreme and second feed inlet intercommunication, spheroid recovery mechanism includes the discharging pipe that divides the downward setting of side slope of workbin, the tip and the lifting machine of discharging pipe are connected, divide the workbin slope to set up branch material grid, divide the diameter that the material grid clearance is less than broken pearl, divide the material grid to pass from the discharging pipe is inside to get into in the lifting machine, set up in the discharging pipe and prevent that the miropowder from getting into the blowback mechanism of lifting machine.

6. The air separation pretreatment device of the coarse whiting micropowder of claim 5, wherein: the back blowing mechanism comprises an annular frame arranged in the discharge pipe, a plurality of first spray heads are arranged on the annular frame, the first spray heads are communicated with a first air supply pipeline, and the first air supply pipeline is communicated with the air supply mechanism.

7. The air separation pretreatment device of the coarse whiting micropowder of claim 1, wherein: the blanking mechanism comprises a plurality of blanking plates arranged along the shape of the Chinese character 'zhi', ring sleeves are arranged at the upper ends of the blanking plates, supporting shafts penetrating the ring sleeves are arranged in the winnowing box and are connected with the supporting shafts in a rotating mode, limiting grooves are formed in the supporting shafts corresponding to the ring sleeves, side baffles are arranged on two sides of each blanking plate, and swing mechanisms are arranged on the blanking plates corresponding to each side in the winnowing box.

8. The air separation pretreatment device of coarse whiting micropowder of claim 7, wherein: swing mechanism includes the transmission shaft of vertical setting, the upper end of transmission shaft is passed selection by winnowing box top, the selection by winnowing box top corresponds the transmission shaft and sets up the guide cylinder, crank link mechanism is connected to the upper end of transmission shaft, crank link mechanism is connected with the swing motor transmission, bottom in the selection by winnowing box sets up the surge drum, the lower extreme of transmission shaft inserts in the surge drum, guide cylinder and transmission shaft set up with the axle center, set up bearing spring in the surge drum, the upper end of surge drum sets up round elasticity dust belt, the upper end and the transmission shaft bonding in elasticity dust belt, the rotatory connecting rod that sets up in lower extreme side of lower bolster, the other end and the transmission shaft swivelling joint of connecting rod.

9. The air separation pretreatment device of the coarse whiting micropowder of claim 1, wherein: first selection by winnowing mechanism includes the vaulting pole of the lower surface downward setting of flitch down, the lower extreme of vaulting pole sets up the pressure pipe, set up a plurality of second shower nozzles on the pressure pipe, the orientation of blowing of second shower nozzle is for supporting the flitch ejection of compact side down of this second shower nozzle, the pressure pipe passes through second supply-air duct and air feed mechanism intercommunication.

10. The air separation pretreatment device of the coarse whiting micropowder of claim 1, wherein: the second winnowing mechanism comprises a plurality of annular pipes arranged in the winnowing box, the annular pipes are arranged concentrically, the annular pipes are communicated with the air supply mechanism through third air supply pipelines, and a plurality of third spray heads are arranged at the upper ends of the annular pipes.

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