CN203437155U - Wind speed adjusting device of vertical roller mill - Google Patents

Abstract

The utility model relates to a wind speed adjusting device of a vertical roller mill. The wind speed adjusting device comprises a wind channel, a wind ring and a disc, wherein the wind ring is fixedly connected to the wind channel, the disc is located in the wind ring, the wind ring consists of an inner wind ring body and an outer wind body, a cover plate is arranged on the upper end surface of the wind ring, a plurality of wind-guide oblique plates are continuously arranged between the inner wind ring body and the outer wind ring body, the cover plate and the plurality of continuous wind-guide oblique plates are arranged in a staggered manner, outer side edges of the wind-guide oblique plates are fixedly connected to the inner side surface of the outer wind ring body, inner side edges of the wind-guide oblique plates are fixedly connected to the outer side surface of the inner wind ring body, the wind-guide oblique plates are intersected with the horizontal plane obliquely, upper and lower edges of each wind-guide oblique plate are at different positions in the tangent direction of the wind ring, wind adjusting plates with various specifications are arranged on the outer side surface of the inner wind ring body, outer side surfaces of the wind adjusting plates are vertical, each wind adjusting plate is sandwiched between every two adjacent wind-guide oblique plates, and inclination angle directions are consistent with the wind-guide oblique plates. The wind speed adjusting device has the advantages as follows: the wind speed can be controlled in sections and reduced, and the wear to a horn sleeve of the vertical roller mill can be reduced.

Description

Vertical roller grinder wind-speed adjusting device

Technical field

This patent belongs to grinding machine technical field, particularly relates to a kind of vertical roller grinder wind-speed adjusting device.

Background technology

Vertical roller grinder is a kind of energy-conservation milling equipment that is widely used at present the industries such as cement, electric power, mining, iron and steel, is widely used in raw grinding, pulverized coal preparation, the production of the powder body materials such as slag milling.To be the carrier preparation of carrying out dust by wind in process of production, so be very high to the requirement of passing through gas velocity of each section of vane.Vane place air regulating board is in the past used bolt to connect, and need to manufacture plurality of specifications, and mostly uses wear-resisting plate structure complicated, causes manufacturing cost higher.Again, the swash plate in vane is that whole circle 360 degree are evenly arranged, and causes grinding roller bottom wind speed excessive, loudspeaker cover serious wear, and reduce service life.

Summary of the invention

This patent provides a kind of vertical roller grinder wind-speed adjusting device for solving the technical problem existing in known technology, and this vertical roller grinder wind-speed adjusting device can section controlled wind speed, reduces wind speed, reduces the wearing and tearing of loudspeaker cover in vertical roller grinder.

A kind of vertical roller grinder wind-speed adjusting device, comprise air channel, be fixedly connected on vane and the disk body that is positioned at vane on air channel, described vane consists of interior vane and outer vane, it is characterized in that: described vane is provided with cover plate in upper surface, and between interior vane and outer vane, be provided with continuously a plurality of wind-guiding swash plates, described cover plate and a plurality of continuous described wind-guiding swash plate are crisscross arranged, the outer side edges of described wind-guiding swash plate is fixedly connected on outer vane medial surface, inner side edge is fixedly connected on interior vane lateral surface, described wind-guiding swash plate and horizontal plane tilt to intersect, the top edge of each wind-guiding swash plate and lower limb have different positions on vane is tangential,

The lateral surface of described interior vane is provided with the air regulating board of plurality of specifications, and the lateral surface of air regulating board is vertical, and every air regulating board is clipped between two adjacent wind-guiding swash plates, and angle of inclination direction is consistent with wind-guiding swash plate.

Advantage and good effect that this patent has are:

Because this patent adopts technique scheme, vane is by the importing grinding chamber of the gas uniform from air channel, when wind speed is too low, the feed back amount that causes being fallen by vane place is increased; When wind speed is too high, can produce at vane place larger flowing resistance again.The utility model is effective controlled wind speed just, when not producing larger flowing resistance, reduces feed back amount, improves output.The in the situation that of using power consumption etc. the same, improve output within the unit interval, just meaned that power consumption that product per ton is required etc. reduces, played the effect of energy-conserving and environment-protective, reduced production cost.Grinding roller bottom wind speed reduces, then by changing airflow direction, can effectively to loudspeaker cover, play a protective role, and reduces wearing and tearing, increases service life, has reduced maintenance cost.The utility model is simple in structure, and processing and manufacturing is easy, has reduced manufacturing cost, and easy and simple to handle.

Accompanying drawing explanation

Fig. 1 is the broken section structural representation of this patent;

Fig. 2 is the top view of this patent;

Fig. 3 is the vane inner surface schematic diagram of this patent.

In figure: 1, air guide ring; 21, outer vane; 22, interior vane; 3, air regulating board; 4, air channel; 5, disk body; 6, cover plate; 7, wind-guiding swash plate.

The specific embodiment

For further understanding utility model content, the Characteristic of this patent, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

Refer to Fig. 1～3, in Fig. 2, four end points outsides of center line are the position of grinding roller.

A kind of vertical roller grinder wind-speed adjusting device, comprise air channel 4, be fixedly connected on vane and the disk body 5 that is positioned at vane on air channel, described vane consists of interior vane 21 and outer vane 22, vane is provided with cover plate 6 and between interior vane and outer vane, is provided with continuously a plurality of wind-guiding swash plates 7 in upper surface, cover plate and a plurality of continuous wind-guiding swash plate are crisscross arranged, particularly, , by every 5 degree, a wind-guiding swash plate is set, vane is divided into A to many sections of G, swash plate incline direction is consistent with mill direction of rotation, in the corresponding grinding roller of vane 2 place 20 degree, reduce by 3 wind-guiding swash plates, and press grinding roller off-centring 5 and spend setting, this 20 degree region covers cover plate 6, the side of wind-guiding swash plate is fixedly connected on vane medial surface, and wind-guiding swash plate and horizontal plane tilt to intersect, and the top edge of each wind-guiding swash plate and lower limb have different positions on vane is tangential.The medial surface of vane is also provided with air guide ring 1, and the top of air guide ring is compared with the center of the more close disk body in bottom of air guide ring.The upper surface of wind-guiding swash plate is also provided with wearing layer.

The lateral surface of interior vane is provided with the air regulating board 3 of plurality of specifications, and the lateral surface of air regulating board is vertical, and every air regulating board is clipped between two adjacent wind-guiding swash plates, and angle of inclination direction is consistent with wind-guiding swash plate.

The operating principle of this patent is:

By wind-guiding swash plate 7, vane 2 is divided into a plurality of sections, again air regulating board 3 is designed to two kinds of specifications, then according to wind speed requirement, select the different air regulating board of width, air regulating board 3 is welded on vane 2, regulates wind-guiding region length diametrically, in each section, draught area is different like this, cause wind speed also just not identical, can effectively regulate wind speed; Vane inner swash plate is reduced in grinding roller below; cover cover plate; block vent passages completely; wind speed is dropped to minimum; and 20 degree on vane are lacked to position skew grinding roller center 5 degree of swash plate, and can change the direction of air-flow, so just can reduce the wearing and tearing that loudspeaker overlap; play protection loudspeaker cover, extend the effect of working life.

Although by reference to the accompanying drawings the preferred embodiment of this patent is described above; but this patent is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under the enlightenment of this patent; not departing from the scope situation that this patent aim and claim protect, can also make a lot of forms, within these all belong to the protection domain of this patent.

Claims (1)

1. a vertical roller grinder wind-speed adjusting device, comprise air channel, be fixedly connected on vane and the disk body that is positioned at vane on air channel, described vane consists of interior vane and outer vane, it is characterized in that: described vane is provided with cover plate in upper surface, and between interior vane and outer vane, be provided with continuously a plurality of wind-guiding swash plates, described cover plate and a plurality of continuous described wind-guiding swash plate are crisscross arranged, the outer side edges of described wind-guiding swash plate is fixedly connected on outer vane medial surface, inner side edge is fixedly connected on interior vane lateral surface, described wind-guiding swash plate and horizontal plane tilt to intersect, the top edge of each wind-guiding swash plate and lower limb have different positions on vane is tangential,

The lateral surface of described interior vane is provided with the air regulating board of plurality of specifications, and the lateral surface of air regulating board is vertical, and every air regulating board is clipped between two adjacent wind-guiding swash plates, and angle of inclination direction is consistent with wind-guiding swash plate.

Images