CN215277875U

CN215277875U - Single-flow inertial separator

Info

Publication number: CN215277875U
Application number: CN202121343747.9U
Authority: CN
Inventors: 李东硕
Original assignee: Shenyang Heavy Power Equipment Manufacture Co ltd
Current assignee: Shenyang Heavy Power Equipment Manufacture Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-12-24
Anticipated expiration: 2031-06-16

Abstract

The utility model relates to a single current inertial separation ware among the grinding technology selection powder technical field discloses a single current inertial separation ware, including last separator, well separator, lower separator, inner circulating pipe and locate the buggy pipeline on the separator and locate the powder return groove under the separator, fixed welding has first limiting plate and second limiting plate about the left end of lower separator inner chamber respectively, first limiting plate inner chamber activity is pegged graft there is the backup pad, the inboard fixed welding of backup pad has fixed stop, the terminal surface has the protection pad under the fixed stop, be equipped with a plurality of cavity bosss on the protection pad, the outer tip of fixed stop has movable stop through round pin axle swing joint, the welding of well separator upper right end has the push pedal. The utility model discloses can not only conveniently remain the buggy clearance on the buggy deflector, and it is adjustable to have the fineness, and the amount of wind is adjustable, circulation volume adjustable function.

Description

Single-flow inertial separator

Technical Field

The utility model relates to a single current inertial separator in the grinding technology selection powder technical field specifically is a single current inertial separator.

Background

The coal mill is raw coal pulverizing equipment, and is mainly used for crushing raw coal into coal powder with proper granularity, and simultaneously has the capabilities of drying and conveying the coal powder. The separator separates out the unqualified coal powder, and the unqualified coal powder enters the grinding area through the powder returning groove to be ground again. The fan coal mill has no primary fan in the pulverizing system due to its working characteristics, and the coal mill completes the powder feeding work through the blast effect of the striking wheel.

The existing coal powder separator for the coal mill has the advantages that coal powder is easy to remain on a baffle in the separator in the long-term use process, the coal powder is not easy to clean, the separation effect of the coal powder is easy to be poor, the coal powder separator does not have the functions of adjustable fineness, adjustable air quantity and adjustable circulation quantity, and therefore the uniflow inertial separator is provided.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a single current inertial separation ware has solved the buggy disengaging process, and the buggy is remained easily on the baffle in the separator, is difficult for clearing up, and the separation effect that leads to the buggy easily is not good, and the problem of function singleness.

The utility model provides a single current inertial separation ware, including last separator, well separator, lower separator, inner circulating pipe and locate the buggy pipeline on the separator and locate the powder groove that returns under the separator, fixed welding has first limiting plate and second limiting plate about the separator inner chamber left end portion respectively down, first limiting plate inner chamber activity is pegged graft and is had the backup pad, the inboard fixed welding of backup pad has fixed stop, the terminal surface has the protection pad under the fixed stop to glue, the protection is filled up and is equipped with a plurality of cavity bosss, the outer tip of fixed stop has movable baffle through round pin axle swing joint, the welding of well separator upper right end has the push pedal.

Preferably, the inner cavities of the upper separator, the middle separator and the lower separator are communicated, the upper separator and the middle separator are connected through screws, and the upper separator and the lower separator are fixedly welded.

Preferably, the longitudinal section of the first limiting plate is in an inverted U shape, and the inner side of the first limiting plate is glued with a flexible cushion with an L-shaped longitudinal section.

Preferably, the pulverized coal pipeline is provided with an adjusting baffle plate and is communicated with the inner cavity of the upper separator.

Preferably, a supporting plate is arranged between the push plate and the second limiting plate, and the push plate is in contact with the supporting plate.

Preferably, the fixed baffle and the supporting plate form an included angle, and the fixed baffle is uniformly arranged on the supporting plate from top to bottom.

Preferably, the right end of the first limiting plate is lower than the left end, and the flexible pad is arranged on the left side of the inner cavity of the first limiting plate.

Compared with the prior art, the beneficial effects of the utility model are that: the uniflow inertial separator is provided with a fixed baffle, a movable baffle, a first limit plate, a flexible pad, a second limit plate, a push plate, a protection pad and a hollow boss, wherein a wind-powder mixture ground by a coal mill is conveyed to a vertical shaft of a lower separator and a middle separator through an outlet of a machine shell, is guided by the fixed baffle of an upper separator, separates larger particles in coal powder through the swinging of the movable baffle and the rebound force of the hollow boss, then enters an inertial settling chamber inertial separator of the middle separator and the upper separator, qualified coal powder passes through an outlet of an adjusting baffle of the upper separator and a powder conveying pipeline to be burnt by a boiler burner, unqualified coal powder enters a powder returning groove of the middle separator and enters a coal mill gate to be conveyed into the machine shell for re-grinding, the separation efficiency of the coal powder is effectively improved, the upper separator has a guiding and guiding function, the upper separator and the middle separator form a separator inertial settling chamber, the coarse powder and fine powder separator has the functions of internal circulation adjustment, air volume adjustment and fineness adjustment; the middle separator is taken down from the upper separator, so that the fixed baffle and the movable baffle which are arranged on the supporting plate can be easily cleaned, bolts are not needed for fixing the supporting plate, the supporting plate is more convenient to disassemble, and the middle separator is widely applied to the technical field of fan coal mills.

Drawings

FIG. 1 is a schematic view of a partial main section of the structure of the present invention;

FIG. 2 is a schematic view showing the connection of the supporting plate, the fixed baffle and the movable baffle;

fig. 3 is a right side view of the fixing baffle plate of the structure of the present invention.

In the figure: 1. a lower separator; 2. an upper separator; 3. a middle separator; 4. a powder returning groove; 5. an inner circulation pipe; 6. a pulverized coal pipeline; 7. adjusting the baffle; 8. a first limit plate; 9. a flexible pad; 10. a support plate; 11. fixing a baffle plate; 12. a movable baffle; 13. a hollow boss; 14. a second limiting plate; 15. push plate, 16 protective pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: a uniflow inertial separator comprises an upper separator 2, a middle separator 3, a lower separator 1, an inner circulating pipe 5, a pulverized coal pipeline 6 arranged on the upper separator 2, and a pulverized coal return groove 4 arranged below the middle separator 3, wherein the inner circulating pipe 5 is provided with an automatic adjusting door which can adjust the circulating amount of the separator so as to change the ventilation amount and the fineness of pulverized coal, an adjusting baffle 7 can be used for controlling the ventilation amount of a coal mill through opening adjustment, the upper separator 2, the middle separator 3 and the lower separator 1 are all spliced and welded by adopting a Q235A plate, the inner wall of a shaft is provided with a lining plate, the pulverized coal which enters a fan mill and is crushed is subjected to inertial separation by adopting a Q355 plate, the air flow in the separators flows according to the flow guiding direction through a fixed baffle 11 in the separators, large particles are thrown out due to inertia and return to the interior of the coal mill in the pulverized coal return groove 4 to be crushed again, and qualified pulverized coal is delivered to a boiler burner along with the air flow, an adjusting baffle 7 is arranged on the pulverized coal pipeline 6, and the pulverized coal pipeline 6 is communicated with the inner cavity of the upper separator 2. The inner cavities of the upper separator 2, the middle separator 3 and the lower separator 1 are communicated, the upper separator 2 and the middle separator 3 are connected through screws, and the upper separator 2 and the lower separator 1 are fixedly welded. The left end part of the inner cavity of the lower separator 1 is fixedly welded with a first limiting plate 8 and a second limiting plate 14 from top to bottom respectively, the second limiting plate 14 is arranged at the lower right side of the first limiting plate 8, when the supporting plate 10 is installed, the middle separator 3 can be taken down, the supporting plate 10 is inserted into the clamping groove of the first limiting plate 8 from the inside of the middle separator 3, the supporting plate 10 is arranged at the left side of the second limiting plate 14, after the middle separator 3 is installed, the position of the supporting plate 10 can be fixed through the push plate 15 on the middle separator 3, the longitudinal section of the first limiting plate 8 is in an inverted U shape, the flexible cushion 9 with the longitudinal section in an L shape is glued at the inner side of the first limiting plate 8, when the supporting plate 10 is fixed through the push plate 15 and the second limiting plate 14, the push plate 15 provides an acting force to the lower left end part of the supporting plate 10 from the left to the right, therefore, a force opposite to the acting force is generated at the upper end part of the supporting plate 10, through the setting of flexblepad 9, with the help of the elasticity of flexblepad 9, can make backup pad 10 fixed more stable, realization that fixed stop 11 and adjustable fender 12 can be better promptly to the direction of buggy, the right-hand member portion of first limiting plate 8 is less than the left end portion, flexblepad 9 is located 8 inner chambers of first limiting plate left sides. The inner cavity of the first limiting plate 8 is movably inserted with a supporting plate 10, a fixed baffle 11 is fixedly welded on the inner side of the supporting plate 10, the fixed baffle 11 and the supporting plate 10 form an included angle, and the fixed baffle 11 is uniformly arranged on the supporting plate 10 from top to bottom. The movable baffle plate 12 and the fixed baffle plate 11 are welded by adopting NM400 plates. The fixed baffle 11 is used for changing the direction of air flow in the separator, so that the air flow with powder flows according to a preset requirement, the inertial separator is realized, the movable baffle 12 changes the flow direction of upper air flow and is used for adjusting the fineness of outlet pulverized coal, a protective pad 16 is glued to the lower end face of the fixed baffle 11, a plurality of hollow bosses 13 are arranged on the protective pad 16, the outer end part of the fixed baffle 11 is movably connected with the movable baffle 12 through a pin shaft, and a push plate 15 is welded at the upper right end part of the middle separator 3. A supporting plate 10 is arranged between the push plate 15 and the second limiting plate 14, and the push plate 15 and the supporting plate 10 are in mutual contact.

The working principle is as follows: when the uniflow inertial separator is used, the lower end part of a lower separator 1 is connected with a powder outlet of a coal mill shell, the upper end part of the lower separator is connected with a middle separator 3 to form a separator vertical shaft, pulverized coal ground by the coal mill is sent to an upper separator 2, an air-powder mixture ground by the coal mill passes through a support plate 10 and is guided by a fixed baffle plate 11 on the support plate 10 to change the flowing direction of air flow and then enters the upper separator 2 and the middle separator 3, when the pulverized coal passes between adjacent fixed baffle plates 11, large particles in the pulverized coal collide with the fixed baffle plate 11, as the hollow lug boss 13 is arranged on the end surface of the fixed baffle plate 11 opposite to the flowing direction of the pulverized coal, the impact force of the large particles in the pulverized coal is large, the hollow lug boss 13 can be compressed, the hollow lug boss 13 is slightly deformed, and then the large particles are rebounded and reset by the hollow lug boss 13, and then the large particles are re-entered into the powder outlet of the coal mill shell through the lower separator 1, and the coal dust entering the upper separator 2 and the middle separator 3 flows in a deflected direction, slightly large particles are deposited into a powder return groove 4 of the middle separator 3 by inertia and sent into a coal mill for re-grinding, and qualified coal dust particles are sent to a coal dust pipeline along with the air flow to an adjusting baffle and then enter a boiler burner for burning.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a single current inertial separation ware, includes separator (2), well separator (3), separator (1), inner circulating pipe (5) and locates buggy pipeline (6) on separator (2) and locate returning under separator (3) powder groove (4), its characterized in that down with locating separator (2): lower separator (1) inner chamber left end portion is fixed welding respectively from top to bottom has first limiting plate (8) and second limiting plate (14), first limiting plate (8) inner chamber activity is pegged graft and is had backup pad (10), the inboard fixed welding of backup pad (10) has fixed stop (11), the terminal surface has the protection pad (16) to glue under fixed stop (11), be equipped with a plurality of cavity bosss (13) on the protection pad (16), fixed stop (11) outer tip has adjustable stop (12) through round pin axle swing joint, the welding of well separator (3) upper right end portion has push pedal (15).

2. A single flow inertial separator according to claim 1, wherein: the inner cavities of the upper separator (2), the middle separator (3) and the lower separator (1) are communicated, the upper separator (2) and the middle separator (3) are connected through screws, and the upper separator (2) and the lower separator (1) are fixedly welded.

3. A single flow inertial separator according to claim 1, wherein: the longitudinal section of the first limiting plate (8) is in an inverted U shape, and the inner side of the first limiting plate (8) is glued with a flexible cushion (9) with an L-shaped longitudinal section.

4. A single flow inertial separator according to claim 1, wherein: an adjusting baffle (7) is arranged on the pulverized coal pipeline (6), and the pulverized coal pipeline (6) is communicated with the inner cavity of the upper separator (2).

5. A single flow inertial separator according to claim 1, wherein: a supporting plate (10) is arranged between the push plate (15) and the second limiting plate (14), and the push plate (15) is in contact with the supporting plate (10) mutually.

6. A single flow inertial separator according to claim 1, wherein: fixed stop (11) and backup pad (10) are the contained angle, and fixed stop (11) evenly locate backup pad (10) from last to down.

7. A single flow inertial separator according to claim 3, wherein: the right end of the first limiting plate (8) is lower than the left end, and the flexible pad (9) is arranged on the left side of the inner cavity of the first limiting plate (8).