CN214718434U - Mechanism sand wind selector - Google Patents

Abstract

The application relates to the field of machine-made sand production equipment, in particular to a machine-made sand winnowing device which comprises a first winnowing mechanism, a second winnowing mechanism, a dust collection box and a circulating mechanism, wherein the first winnowing mechanism comprises a first dust removal box, a rolling screen cylinder, a first air blower and a first air exhauster, the rolling screen cylinder transversely penetrates through the first dust removal box, the rolling screen cylinder is obliquely arranged, and the feeding end of the rolling screen cylinder is higher than the discharging end of the rolling screen cylinder; the first air blower is arranged on the top wall of the first dust removal box and communicated with the first dust removal box, and the first exhaust fan is arranged on the bottom wall of the first dust removal box and communicated with the first dust removal box; the dust collection box is arranged at one end, far away from the first dust removal box, of the first exhaust fan, the second winnowing mechanism is arranged at one end, discharged from the rolling screen drum, of the second winnowing mechanism and communicated with one end, discharged from the rolling screen drum, of the second winnowing mechanism, and the circulating mechanism can enable one end, discharged from the second winnowing mechanism to be communicated with one end, fed from the rolling screen drum, of the second winnowing mechanism. This application has the effect that improves quality after the mechanism sand removes dust.

Description

Mechanism sand wind selector

Technical Field

The application relates to the field of machine-made sand production equipment, in particular to a machine-made sand winnowing device.

Background

The machine-made sand is sand processed by the sand making machine and other accessory equipment, the finished product is more regular, and the sand can be processed into sand with different rules and sizes according to different process requirements, so that the daily requirement can be better met. In the modern production and construction process, the requirement on the quality of construction raw materials is higher and higher, and the machine-made sand produced by the conventional process has stone powder content of 10-15% generally and cannot meet the acceptance standard of production and construction.

The Chinese patent with the application number of 201120177234.5 discloses a machine-made sand winnowing dust removal device, which comprises a dust removal bin, wherein a feeding nozzle is arranged at the top of the dust removal bin, the upper part of the feeding nozzle is fixedly connected with the dust removal bin, the lower end of the feeding nozzle is arranged in the dust removal bin, a discharge hole is arranged at the bottom of the dust removal bin, a buffering platform is arranged in the dust removal bin, the buffering platform is arranged below the feeding nozzle, and the buffering platform is fixedly connected with the dust removal bin; the outer side wall of the dust removal bin is provided with an air blower for lifting the mechanism sand to be sorted falling on the buffering platform and an exhaust fan for extracting stone powder in the mechanism sand to be sorted, the air blower is arranged below the buffering platform, and the exhaust fan is arranged on the upper portion of the dust removal bin. During the use, the air exhauster is connected with the dust collecting pipe, add to the feed inlet and treat sorter system sand, and open air-blower and air exhauster, then treat sorter system sand under the effect of honeycomb duct, fall on buffering platform, at this moment will treat sorter system sand through installing the air-blower on the lateral wall outside the dust removal storehouse and raise, make it to treat sorter system sand to be full of the whole space in dust removal storehouse, because system sand is different with mountain flour weight, consequently, sorter system sand and mountain flour separation, the mountain flour floats and gets into the dust collecting pipe in the dust removal storehouse and under the air exhauster effect, mechanism sand is under the effect of gravity, flow through the discharge gate after the whereabouts, accomplish the dust removal of sorter system sand.

In view of the above-mentioned related technologies, the machine-made sand contains a large amount of stone dust, and the floating stone dust is not immediately and rapidly extracted during dust removal, and will be mixed with the machine-made sand again under the action of gravity, so the inventors consider that it is inconvenient to improve the quality of the machine-made sand after dust removal.

SUMMERY OF THE UTILITY MODEL

In order to improve the quality after the mechanism sand removes dust, this application provides a mechanism sand wind selector.

The application provides a mechanism sand wind selector adopts following technical scheme:

a machine-made sand winnowing device comprises a first winnowing mechanism, a second winnowing mechanism, a dust collection box and a circulating mechanism, wherein the first winnowing mechanism comprises a first dust removal box, a rolling screen cylinder, a first air blower and a first air exhauster, the rolling screen cylinder transversely penetrates through the first dust removal box, the rolling screen cylinder is obliquely arranged, and the feeding end of the rolling screen cylinder is higher than the discharging end of the rolling screen cylinder; the first air blower is arranged on the top wall of the first dust removal box and communicated with the first dust removal box, and the first exhaust fan is arranged on the bottom wall of the first dust removal box and communicated with the first dust removal box; the dust collection box sets up first air exhauster is kept away from first dust removal case one end, second selection by winnowing mechanism sets up roll material sieve section of thick bamboo ejection of compact one end and with roll material sieve section of thick bamboo ejection of compact one end intercommunication, circulation mechanism can make second selection by winnowing mechanism ejection of compact one end with roll material sieve section of thick bamboo feeding one end intercommunication.

By adopting the technical scheme, before the machine-made sand is dedusted, the first air blower and the first exhaust fan are adjusted to be opened, then the machine-made sand continuously enters the first dedusting box along the feeding end of the rolling material screen cylinder, the machine-made sand moves to the discharging end along the rolling material screen cylinder under the action of gravity, in the moving process, dust in the machine-made sand falls from the rolling material screen cylinder and rapidly falls into the dust collection box under the action of the air blower and the exhaust fan, then the machine-made sand leaves the first dedusting box along the discharging end of the rolling material screen cylinder and enters the second winnowing mechanism for secondary dedusting, and finally the machine-made sand subjected to secondary dedusting enters the rolling material screen cylinder again through the circulating mechanism for circulating dedusting until the dust in the machine-made sand reaches a certain standard, so that the dedusting of the machine-made sand is completed; the first winnowing mechanism, the second winnowing mechanism, the dust collection box and the circulating mechanism are arranged to remove dust from the machine-made sand for multiple times, and the machine-made sand is circulated for multiple times until the dust content of the machine-made sand reaches the required standard, so that multiple machine-made sands with different dust contents can be obtained conveniently, the quality of the machine-made sand after dust removal can be improved, the dust can be treated in a centralized manner, and the environmental pollution can be reduced; the first dust removal box, the material rolling screen drum, the first air blower and the first exhaust fan are arranged, so that dust in the machine-made sand enters the dust collection box under the resultant force of gravity, the air blower and the wind force of the exhaust fan to be collected in a concentrated mode, and the dust removal effect is enhanced.

Optionally, the material rolling screen drum comprises a drum section and a screen drum section, the drum section is set to the material rolling screen drum penetrates out of the first dust removal box part, and the screen drum section is set to the material rolling screen drum in the first dust removal box inner cavity part.

Through adopting above-mentioned technical scheme, the cylinder section and the section of thick bamboo of sieving of setting for the material that rolls outside the first dust removal case sieve a section of thick bamboo keeps airtight, reduces mechanism sand and dust and scatters into the workspace and causes the pollution.

Optionally, first selection by winnowing mechanism still includes servo motor, drive gear and rack, roll a material sieve section of thick bamboo and rotate and set up on the first dust removal case, servo motor sets up on the first dust removal case, the coaxial setting of drive gear is in on servo motor's the output shaft, the rack is coaxial around roll on the material sieve section of thick bamboo, driving gear and rack toothing set up.

Through adopting above-mentioned technical scheme, servo motor, drive gear and the rack that sets up when removing dust to first dust removal incasement system sand, keep rolling the rotation of a material sieve section of thick bamboo, improve the quality after dust removal effect and the dust removal.

Optionally, a rotary sealing ring is arranged at the rotary joint of the rolling screen cylinder and the first dust removal box.

Through adopting above-mentioned technical scheme, the rotation sealing washer that sets up for keep airtight space in the first dust removal incasement, be convenient for first air-blower and air exhauster performance, avoid the dust to leak simultaneously, reduce environmental pollution.

Optionally, second air separator constructs including second dust removal case, second air-blower, second air exhauster, the second dust removal case sets up roll material screen drum below, second air-blower and second air exhauster set up respectively on the relative both sides wall of second dust removal case and all with second dust removal incasement chamber intercommunication, the second air exhauster is kept away from second dust removal case one end with the dust collection box intercommunication.

By adopting the technical scheme, before the machine-made sand enters the second dust removal box, the second air blower and the second exhaust fan are opened, the machine-made sand falls along the second dust removal box under the action of gravity, in the falling process of the machine-made sand, the air blower blows up dust in the machine-made sand, then the dust is drawn out of the second dust removal box by the second exhaust fan and enters the dust collection box for centralized collection, and the machine-made sand continues to fall under the action of gravity, so that secondary dust removal of the machine-made sand is completed; the second dust removal case, the second air-blower, the second air exhauster that set up utilize the gravity difference of mechanism sand and dust to separate the two, and it is changeed to blow the dust along vertical direction whereabouts, and the secondary of being convenient for removes dust.

Optionally, roll a material sieve section of thick bamboo ejection of compact one end and be provided with the feed chute, the feed chute is kept away from roll a material sieve section of thick bamboo one end and is stretched into second dust removal roof wall and with second dust removal incasement chamber intercommunication, follow in the feed chute second dust removal case direction of feed is provided with a plurality of stock guides.

Through adopting above-mentioned technical scheme, feed chute and stock guide that set up for roll material sieve section of thick bamboo gets into the mechanism sand of second dust removal incasement and is separated into a plurality of strands by a plurality of stock guides, makes the even scattering of mechanism sand advance the second dust removal incasement, and the dust removal quality of mechanism sand is improved to the play and the taking off of the dust of being convenient for.

Optionally, the material collecting box is arranged at one end of the material outlet below the second dust removing box, a screen is arranged on the dust removing box, and the bottom wall of the dust removing box is provided with a feeding port and a switch valve for plugging the feeding port.

By adopting the technical scheme, when the machine-made sand falls from the second dust removal box to the screen, particles with the particle size larger than that of the machine-made sand fall on the screen, and the machine-made sand passes through the screen and falls above the same batch of machine-made sand in the material collection box, so that the batch of machine-made sand falls on the circulating mechanism for circulating dust removal; the material collecting box and the screen cloth are arranged, particles larger than the grain diameter of the machine-made sand are filtered, the quality of the machine-made sand is improved, meanwhile, the machine-made sand which removes dust in the same batch is temporarily stored, the machine-made sand in the same batch is convenient to recycle and remove dust again, and the machine-made sand is prevented from being mixed with other batches of machine-made sand.

Optionally, the circulation mechanism comprises a screw conveyor, a discharge end of the screw conveyor is communicated with a feeding end of the rolling screen drum, and the feeding end of the screw conveyor is arranged below the feeding port.

Through adopting above-mentioned technical scheme, the screw conveyer that sets up can send the mechanism sand in the case that gathers materials into the feed end of a roll material sieve section of thick bamboo, accomplishes the closed loop that the circulation removed dust, is convenient for circulate and removes dust to the mechanism sand many times, is convenient for improve the quality of mechanism sand.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first winnowing mechanism, the second winnowing mechanism, the dust collection box and the circulating mechanism are arranged to remove dust from the machine-made sand for multiple times, and the machine-made sand is circulated for multiple times until the dust content of the machine-made sand reaches the required standard, so that multiple machine-made sands with different dust contents can be obtained conveniently, the quality of the machine-made sand after dust removal can be improved, the dust can be treated in a centralized manner, and the environmental pollution can be reduced; the first dust removal box, the material rolling screen drum, the first air blower and the first exhaust fan are arranged, so that dust in the machine-made sand enters the dust collection box under the resultant force of gravity and the wind power of the air blower and the exhaust fan to be collected in a centralized manner, and the dust removal effect is enhanced;

2. the feeding chute and the guide plates are arranged, so that the machine-made sand entering the second dust removal box through the rolling screen drum is divided into a plurality of strands by the guide plates, the machine-made sand uniformly falls into the second dust removal box, dust is convenient to raise and extract, and the dust removal quality of the machine-made sand is improved;

3. the screw conveyer who sets up can send the mechanism sand in the case that gathers materials into the feed end of a roll material sieve section of thick bamboo, accomplishes the closed loop that the circulation removed dust, is convenient for circulate and removes dust to mechanism sand many times, is convenient for improve the quality of mechanism sand.

Drawings

Fig. 1 is a schematic overall structure diagram of a machine-made sand winnowing device according to an embodiment of the present application.

Fig. 2 is an internal schematic view of the first air separation mechanism of fig. 1.

Fig. 3 is a schematic structural view of the second air separation mechanism in fig. 1.

Description of reference numerals: 1. a support; 2. a first winnowing mechanism; 21. a first dust removal box; 22. a rolling screen drum; 221. a drum section; 222. a screen cylinder section; 23. rotating the sealing ring; 24. a drive member; 241. a servo motor; 242. a transmission gear; 243. a rack; 25. a first dust suction pipe; 26. a first blower; 27. a first exhaust fan; 3. a second winnowing mechanism; 31. a feed chute; 32. a material guide plate; 33. a second dust removal box; 34. a second dust suction pipe; 35. a second blower; 36. a second exhaust fan; 4. a dust collection box; 5. a material collecting box; 51. screening a screen; 52. a feed port; 53. opening and closing the valve; 6. a circulating mechanism; 61. a screw conveyor.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses mechanism sand wind selector. Referring to fig. 1, the machine-made sand winnowing device comprises a bracket 1, and a first winnowing mechanism 2, a second winnowing mechanism 3, a dust collection box 4, a material collection box 5 and a circulating mechanism 6 which are welded on the bracket 1; the support 1 is fixed subaerial through expansion bolts, the discharge end of first selection by winnowing mechanism 2 and the feed end of second selection by winnowing mechanism 3 intercommunication, dust collection box 4 is placed on ground in first selection by winnowing mechanism 2 below, dust collection box 4 and first selection by winnowing mechanism 2 and second selection by winnowing mechanism 3 intercommunication, the setting of case 5 that gathers materials is in 3 discharge end below of second selection by winnowing mechanism, circulation mechanism 6 sets up between the discharge end of the feed end of first selection by winnowing mechanism 2 and second selection by winnowing mechanism 3.

Referring to fig. 1 and 2, the first air separation mechanism 2 includes a first dust removal box 21, a rolling screen drum 22, a rotary sealing ring 23, a driving member 24, a first dust suction pipe 25, a first air blower 26 and a first air blower 27; the first dust removal box 21 is transversely welded on the bracket 1, the rolling screen cylinder 22 transversely obliquely penetrates through the first dust removal box 21 and is rotatably connected with the first dust removal box 21 through a bearing, and the feeding end of the rolling screen cylinder 22 is higher than the discharging end of the rolling screen cylinder 22; the rolling screen drum 22 comprises a drum section 221 and a screen drum section 222, the drum section 221 is a sealing part of the rolling screen drum 22 penetrating out of the first dust removal box 21, and the screen drum section 222 is a part of the screen 51 of the rolling screen drum 22 in the inner cavity of the first dust removal box 21; the rotary sealing ring 23 is adhered at the rotary connection part of the rolling screen cylinder 22 and the first dust removal box 21. The first air blower 26 is fixed on the top wall of the first dust removal box 21 through bolts, and an air outlet of the first air blower 26 extends into the first dust removal box 21 and is communicated with the first dust removal box 21; one end of the first dust suction pipe 25 is welded on the bottom wall of the first dust removal box 21 and communicated with the first dust removal box 21, and the other end is welded on the dust collection box 4 and communicated with the dust collection box 4; the first suction fan 27 is flanged to the first suction pipe 25 and communicates with the first suction pipe 25.

Referring to fig. 1 and 2, the driving member 24 includes a servo motor 241, a transmission gear 242 and a rack 243, the servo motor 241 is fixed on the side wall of the feeding end of the first dust removing box 21 by bolts, the transmission gear 242 is coaxially welded on the output shaft of the servo motor 241, the rack 243 is coaxially surrounded and welded on the roller section 221 near the feeding end of the first dust removing box 21, and the transmission gear 242 is engaged with the rack 243.

Referring to fig. 1 and 3, the second air separation mechanism 3 includes a feeding chute 31, a material guide plate 32, a second dust removal box 33, a second dust suction pipe 34, a second blower 35, and a second exhaust fan 36; the second dust removing box 33 is vertically welded below the rolling screen drum 22 of the support 1, the top wall of the second dust removing box 33 is provided with a feeding opening, the bottom wall of the second dust removing box 33 is provided with a discharging opening, the feeding groove 31 is welded at the feeding opening, and the feeding groove 31 is positioned below the discharging end of the rolling screen drum 22; the guide plate 32 is provided with a plurality of blocks, and the guide plate 32 is welded on the inner wall of the feed chute 31 along the feeding direction of the second dust removing box 33 and uniformly divides the feed chute 31 into a plurality of feed channels. One end of the second dust suction pipe 34 is welded on the side wall of the second dust removal box 33 close to one side of the dust collection box 4 and is communicated with the second dust removal box 33, and the other end is welded on the dust collection box 4 and is communicated with the dust collection box 4; a second suction fan 36 is flanged to the second suction pipe 34 and communicates with the second suction pipe 34. The second air blower 35 is fixed on the side wall far away from the dust collecting box 4 by bolts, and the air outlet of the second air blower 35 extends into the second dust removing box 33 and is communicated with the second dust removing box 33. The material collecting box 5 is welded on the support 1 and is arranged below the discharging opening, the screen 51 is arranged on the dust removing box, the feeding opening 52 is formed in the bottom wall of the dust removing box, the feeding opening 52 is connected with a switch valve 53 for plugging the feeding opening 52 through a flange, and the switch valve 53 is an electromagnetic valve.

Referring to fig. 1 and 3, the circulating mechanism 6 comprises a screw conveyer 61, the screw conveyer 61 is welded on the support 1 in an inclined manner, one feeding end of the screw conveyer 61 is welded below the feeding port 52, and one discharging end of the screw conveyer 61 extends into one feeding end of the roller screen cylinder 22 in an inclined manner and is in clearance fit with one feeding end of the screen cylinder.

The implementation principle of a mechanism sand wind selector of this application embodiment does: before the machine-made sand is dedusted, the first air blower 26 and the first exhaust fan 27 are adjusted to be opened, and the servo motor 241 is adjusted to be opened, so that the output shaft of the servo motor 241 is meshed with a toothed chain through the transmission gear 242 to drive the material rolling screen cylinder 22 to rotate; storing the machine-made sand to be dedusted in the collecting box 5, then erecting the screen 51 in the collecting box 5, adjusting the opening of the screw conveyer 61, then opening the switch valve 53, and continuously feeding the machine-made sand into the screw conveyer 61 along the feeding port 52, conveying the machine-made sand to the feeding end of the rolling screen cylinder 22 along the screw conveyer 61, and continuously feeding the machine-made sand into the first dedusting box 21; the mechanism sand entering the first dust removing box 21 moves towards the discharging end along the rolling screen cylinder 22 under the action of gravity, in the moving process, dust in the mechanism sand falls from the screen cylinder section 222, rapidly enters the first dust suction pipe 25 under the action of the air blower and the exhaust fan, falls into the dust collection box 4 and is collected, and the rest mechanism sand enters the second dust removing box 33 along the rolling screen cylinder 22.

Before the machine-made sand enters the second dust removal box 33, the second air blower 35 and the second exhaust fan 36 are adjusted to be opened, the machine-made sand falls into the feeding chute 31 along the rolling screen drum 22, and the machine-made sand is divided into a plurality of strands by a plurality of material guide plates 32 and uniformly falls into the second dust removal box 33 under the action of gravity; in the process of falling of the machine-made sand, the blower blows up the dust in the machine-made sand, then the dust is sucked into the second dust suction pipe 34 under the action of the second exhaust fan 36 and enters the dust collection box 4 along the second dust suction pipe 34 for centralized collection, and the rest machine-made sand continues to fall under the action of gravity, so that the secondary dust collection of the machine-made sand is completed. When the mechanism sand falls down to screen cloth 51 from second dust removal case 33, the granule that the particle diameter is greater than the mechanism sand falls on screen cloth 51, and the mechanism sand passes screen cloth 51 and falls into same batch mechanism sand top in the case 5 that gathers materials for this batch mechanism sand is continuously fallen on screw conveyer 61 and is circulated the dust removal, and the dust in the mechanism sand reaches certain standard, accomplishes the dust removal of mechanism sand.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a mechanism sand wind selector which characterized in that: the material rolling and screening device comprises a first winnowing mechanism (2), a second winnowing mechanism (3), a dust collection box (4) and a circulating mechanism (6), wherein the first winnowing mechanism (2) comprises a first dust removal box (21), a material rolling screen cylinder (22), a first air blower (26) and a first air exhauster (27), the material rolling screen cylinder (22) transversely penetrates through the first dust removal box (21), the material rolling screen cylinder (22) is obliquely arranged, and the feeding end of the material rolling screen cylinder (22) is higher than the discharging end of the material rolling screen cylinder (22); the first air blower (26) is arranged on the top wall of the first dust removal box (21) and is communicated with the first dust removal box (21), and the first exhaust fan (27) is arranged on the bottom wall of the first dust removal box (21) and is communicated with the first dust removal box (21); dust collection box (4) set up first air exhauster (27) are kept away from first dust removal case (21) one end, second selection by winnowing mechanism (3) set up roll a material sieve section of thick bamboo (22) ejection of compact one end and with roll a material sieve section of thick bamboo (22) ejection of compact one end intercommunication, circulation mechanism (6) can make second selection by winnowing mechanism (3) ejection of compact one end with roll a material sieve section of thick bamboo (22) feeding one end intercommunication.

2. The machine-made sand winnowing device of claim 1, wherein: roll a material sieve section of thick bamboo (22) including a drum section (221) and a sieve section of thick bamboo (222), drum section (221) sets up to roll a material sieve section of thick bamboo (22) is worn out first dust removal case (21) part, sieve section of thick bamboo (222) sets up to roll a material sieve section of thick bamboo (22) in first dust removal case (21) inner chamber part.

3. The machine-made sand winnowing device of claim 1, wherein: first air separator (2) still includes servo motor (241), drive gear (242) and rack (243), it sets up to roll material sieve section of thick bamboo (22) and rotate on first dust removal case (21), servo motor (241) set up on first dust removal case (21), drive gear (242) coaxial setting is in on the output shaft of servo motor (241), rack (243) coaxial around roll material sieve section of thick bamboo (22) are last, drive gear (242) and rack (243) meshing setting.

4. The machine-made sand winnowing device of claim 1, wherein: and a rotary sealing ring (23) is arranged at the rotary connection part of the rolling screen cylinder (22) and the first dust removal box (21).

5. The machine-made sand winnowing device of claim 1, wherein: second air classification mechanism (3) include second dust removal case (33), second air-blower (35), second air exhauster (36), second dust removal case (33) set up roll material sieve section of thick bamboo (22) below, second air-blower (35) and second air exhauster (36) set up respectively on the relative both sides wall of second dust removal case (33) and all with second dust removal case (33) inner chamber intercommunication, second air exhauster (36) are kept away from second dust removal case (33) one end with dust collection box (4) intercommunication.

6. The machine-made sand winnowing device of claim 5, wherein: roll a material sieve section of thick bamboo (22) ejection of compact one end and be provided with feed chute (31), feed chute (31) are kept away from and are rolled a material sieve section of thick bamboo (22) one end and stretch into second dust removal case (33) roof and with second dust removal case (33) inner chamber intercommunication, follow in feed chute (31) second dust removal case (33) feeding direction is provided with a plurality of stock guides (32).

7. The machine-made sand winnowing device of claim 5, wherein: still include collection workbin (5), collection workbin (5) set up ejection of compact one end of second dust removal case (33) below is provided with screen cloth (51) on second dust removal case (33), pay-off mouth (52) and right have been seted up to second dust removal case (33) diapire pay-off mouth (52) carry out the ooff valve (53) of shutoff.

8. The machine-made sand winnowing device of claim 7, wherein: the circulating mechanism (6) comprises a spiral conveyor (61), one discharging end of the spiral conveyor (61) is communicated with one feeding end of the rolling screen drum (22), and one feeding end of the spiral conveyor (61) is arranged below the feeding port (52).

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