CN217748106U - Novel dynamic air selecting and distributing device - Google Patents

Abstract

The utility model discloses a novel move selection cloth wind device relates to selection powder machine technical field. This move and select cloth wind device, including the volute, set up toper ash bucket in the volute below, set up cage shape rotor in the volute, locate the farine exit tube and the drive arrangement of volute top, the left side intercommunication of volute has primary air admission pipe, and the right side intercommunication of volute has secondary air admission pipe, and the top both sides of volute are equipped with the inlet pipe, and cage shape rotor bottom corresponds the position level with the volute inner wall and is equipped with porous air equalizing plate, and porous air equalizing plate is formed by opening angle bar welding down. Through the utility model discloses can promote and avoid porous air equalizing plate to block up, improve the inside gaseous flow field of selection powder machine, improve selection powder machine selection powder efficiency.

Description

Novel dynamic air selecting and distributing device

Technical Field

The utility model relates to a selection powder machine technical field particularly, relates to a novel move selection cloth wind device.

Background

The powder concentrator is widely applied to coal mills, raw material discharge drying mills and cement mill systems in novel dry cement production lines. The powder concentrator has a plurality of types, the materials with different types are different, and different types are manufactured according to the requirement of customers on the material fineness. Common powder separators include cyclone powder separator, three-separation powder separator, centrifugal powder separator, coal mill separator, calcium powder separator, etc. And a plurality of high-efficiency powder selectors are developed later, and are new generation varieties which are not improved enough on the basis of the original varieties and improve the yield.

The high-efficiency vortex dynamic powder concentrator adopts the classification principle of O-sepa to concentrate powder, air and materials coming out of the V-shaped powder concentrator enter from the side surface of the dynamic powder concentrator, and a porous air-equalizing plate with 120 degrees is horizontally arranged at the upper side of an air inlet in order to prevent the air and the materials from entering an upper powder concentration area nearby; however, the porous air-equalizing plate is easily blocked due to the influence of the fluctuation of the water in the raw materials in the using process, the layout of the gas flow field in the powder concentrator is influenced, and the powder concentrating efficiency of the dynamic powder concentrator is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to not enough in the background art, provide a novel move selection cloth wind device, through the utility model discloses can promote and avoid porous equal aerofoil to block up, improve the inside gas flow field of selection powder machine, improve selection powder machine selection powder efficiency.

In order to achieve the above object, the technical solution of the present invention is as follows:

the utility model provides a novel move selection cloth wind device, includes the volute, set up at the toper ash bucket of volute below, set up cage shape rotor in the volute, locate the farine exit tube and the drive arrangement of volute top, the left side intercommunication of volute has primary air admission pipe, and the right side intercommunication of volute has secondary air admission pipe, and the top both sides of volute are equipped with the inlet pipe, and cage shape rotor bottom corresponds the position level with the volute inner wall and is equipped with porous air equalizing plate, and porous air equalizing plate is formed by opening angle bar welding down.

In order to stabilize the layout of the gas flow field in the dynamic powder concentrator, so that materials cannot be accumulated on the porous air-equalizing plate, and further avoid the phenomenon of hole blockage, the invention provides another preferable scheme, wherein the porous air-equalizing plate is fan-shaped, and the angle is 120 degrees.

In order to reduce the resistance of the equipment and reduce the power consumption of the powder concentrator, the invention provides another preferable scheme, the cage-shaped rotor is in an inverted cone shape, the center of the cage-shaped rotor is provided with a central rotating shaft, the top and the bottom of the cage-shaped rotor are connected with the central rotating shaft through supporting bars, and the side surface of the cage-shaped rotor is composed of guide blades with gaps.

In order to scatter the materials entering the powder concentrator as much as possible, the invention provides another preferable scheme that a scattering disk is arranged at the top of the cage-shaped rotor.

In order to facilitate the control of the rotating speed of the motor, the invention provides another preferable scheme, a support rod is arranged above the volute, a support plate is arranged above the support rod, the driving device is composed of the motor and a frequency converter and is arranged above the support plate, and the frequency converter is remotely controlled through a wireless signal.

Furthermore, in order to reduce energy consumption loss in the transmission process, an external gear is arranged at the top end of the central rotating shaft, and an internal gear corresponding to the external gear at the top end of the central rotating shaft is arranged at the bottom end of the output shaft of the motor.

In order to perform the powder separation again on the coarse materials entering the conical ash bucket, the invention provides another preferable scheme, the surface of the conical ash bucket is communicated with a tertiary air inlet pipe, and the bottom end of the conical ash bucket is provided with a discharge pipe.

In order to effectively stabilize the entering airflow, eliminate turbulence and velocity gradient in the vertical direction and make the flow velocity more stable and uniform, the invention provides another preferable scheme that horizontal rectifying plates are arranged in the primary air inlet pipe and the secondary air inlet pipe.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:

1. the cage-shaped rotor and the porous air-equalizing plate are matched with the horizontal rectifying plate, so that the sorting airflow forms a horizontal vortex to sort the materials; the porous air equalizing plate made of the angle iron is adopted, and the phenomenon of blockage of the ventilation holes is avoided by utilizing the advantage that materials cannot be accumulated on the inclined edge of the angle iron;

2. the cage-shaped rotor is designed into an inverted cone shape, so that the power consumption is reduced, and meanwhile, when powder rises under the action of the upper buoyancy force, a part of coarse material collides with guide blades directly arranged on the side surface of the conical cage-shaped rotor and falls into the conical ash bucket, so that the powder selecting efficiency is accelerated.

Drawings

FIG. 1 is a front view of the overall structure of the present embodiment;

FIG. 2 is a top view of the perforated air-uniforming plate of the present embodiment;

FIG. 3 is an overall structure view of the cage rotor of the present embodiment;

the reference symbols in the drawings mean: 1. a volute; 2. a fine powder outlet pipe; 3. a motor; 4. a cage rotor; 401. a central rotating shaft; 402. an outer gear; 403. a supporting strip; 404. a guide vane; 5. a porous air-equalizing plate; 6. a conical ash hopper; 7. a feed pipe; 8. a discharge pipe; 9. a material spreading disc; 10. a support bar; 11. a support plate; 12. a primary air inlet pipe; 13. a secondary air inlet pipe; 14. a tertiary air inlet pipe; 15. a frequency converter; 16. a horizontal rectifying plate; 17. an internal gear.

Detailed Description

The following detailed description of the present invention will be provided in conjunction with fig. 1 to 3, so as to make it clear for those skilled in the art how to practice the present invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not limiting, of the scope of the invention.

As shown in fig. 1 and 2, a novel dynamic air distribution device comprises a volute 1, a conical ash bucket 6 arranged below the volute 1, a cage-shaped rotor 4 arranged in the volute 1, a fine powder outlet pipe 2 arranged above the volute 1 and a driving device, wherein a primary air inlet pipe 12 is communicated with the left side of the volute 1, a secondary air inlet pipe 13 is communicated with the right side of the volute, feed pipes 7 are arranged on two sides of the top of the volute 1, a porous air equalizing plate 5 is horizontally arranged at the bottom of the cage-shaped rotor 4 and at the position corresponding to the inner wall of the volute 1, and the porous air equalizing plate 5 is formed by welding angle irons with downward openings. The hole interval of porous equipartition board 5 reserves according to 50mm, adopts 5# angle bar preparation, and the opening of angle bar is down, and two right-angle sides become 45 degrees with the plane, and the material can not pile up on the angle bar bevel edge, has avoided the jam phenomenon in ventilation hole. The porous air equalizing plate 5 is fan-shaped, has an angle of 120 degrees, and is arranged on the inner wall of the volute 1 between the cage rotor 4 and the primary air inlet pipe 12 and the secondary air inlet pipe 13.

As shown in fig. 3, the cage rotor 4 is an inverted cone, a central rotating shaft 401 is provided in the center of the cage rotor 4, the top and the bottom of the cage rotor 4 are connected to the central rotating shaft 401 through supporting bars 403, and the side of the cage rotor 401 is formed by guide vanes 404 with gaps. In order to scatter the materials entering the powder concentrator as much as possible, the top of the cage-shaped rotor 4 is provided with a scattering disk 9.

A vertical supporting rod 10 is arranged above the volute 1, a horizontal supporting plate 11 is arranged above the supporting rod 10, a driving device is composed of a motor 3 and a frequency converter 15 and is arranged above the supporting plate 10, and the frequency converter 15 is remotely controlled through a wireless signal. In order to reduce the energy loss during the transmission process, the top end of the central rotating shaft 401 is provided with an external gear 402, and the bottom end of the output shaft of the motor 3 is provided with an internal gear 17 corresponding to the external gear 402 at the top end of the central rotating shaft 401.

The surface of toper ash bucket 6 is equipped with cubic air intake pipe 14, toper ash bucket 6 bottom is equipped with discharging pipe 8. Horizontal rectifying plates 16 are arranged in the primary air inlet pipe 12 and the secondary air inlet pipe 13.

The working principle is as follows: the milled powder is fed by a feeding pipe 7 at the upper part of the powder selecting machine, and enters a powder selecting area after being fully scattered by a scattering disk 9. The primary air and the secondary air introduced by the primary air inlet pipe 12 and the secondary air inlet pipe 13 horizontally enter the powder separation area through the horizontal flow rectifying plate 16. Under the action of the cage-shaped rotor 4 and the porous air-equalizing plate 5, the sorting airflow forms a horizontal vortex to sort the powder, fine powder enters a bag-type dust collector from a fine powder outlet pipe 2 at the upper part to be collected as a finished product, coarse powder falls into a conical ash bucket 6, the coarse powder is subjected to tertiary air secondary floating sorting, the selected fine powder is brought to an upper outlet by the airflow, and the rest coarse powder particles are discharged from a bottom discharge pipe 8 as return powder and are returned to the mill for re-grinding.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a novel move and select cloth wind device, includes the volute, set up at the toper ash bucket of volute below, set up the cage rotor in the volute, locate the fine powder exit tube and the drive arrangement of volute top, its characterized in that: the left side intercommunication of volute has the primary air admission pipe, the right side intercommunication of volute has the secondary air admission pipe, the top both sides of volute are equipped with the inlet pipe, cage rotor bottom corresponds the position level with the volute inner wall and is equipped with porous air-equalizing plate, porous air-equalizing plate is formed by the angle bar welding of opening down.

2. The novel dynamic selection air distribution device according to claim 1, characterized in that: the porous air-equalizing plate is fan-shaped, and the angle is 120 degrees.

3. The novel dynamic selection air distribution device according to claim 1, characterized in that: the cage rotor is the back taper, cage rotor center is equipped with central pivot, cage rotor top and bottom are passed through the support bar and are connected with central pivot, cage rotor side comprises the guide vane who has gapped.

4. The novel dynamic selection air distribution device according to claim 1, characterized in that: and a material scattering disc is arranged at the top of the cage-shaped rotor.

5. The novel dynamic selection air distribution device according to claim 1, characterized in that: the supporting rod is arranged above the volute, the supporting plate is arranged above the supporting rod, the driving device is composed of a motor and a frequency converter and is arranged above the supporting plate, and the frequency converter is remotely controlled through wireless signals.

6. The novel dynamic selection air distribution device according to claim 1, characterized in that: the surface of toper ash bucket intercommunication has tertiary air intake pipe, toper ash bucket bottom is equipped with the discharging pipe.

7. The novel dynamic selection air distribution device according to claim 1, characterized in that: horizontal rectifying plates are arranged in the primary air inlet pipe and the secondary air inlet pipe.

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