CN209959908U

CN209959908U - High stability coal pulverizer picture peg door

Info

Publication number: CN209959908U
Application number: CN201920779564.8U
Authority: CN
Inventors: 彭维奇; 葛高勇
Original assignee: Lianyungang Huaneng Electric Power Auxiliary Machine Co Ltd
Current assignee: Lianyungang Huaneng Electric Power Auxiliary Machine Co Ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-01-17
Anticipated expiration: 2029-05-28

Abstract

The utility model belongs to the technical field of medium flow regulation such as wind powder, flue gas is used, specifically disclose a high stability coal pulverizer picture peg door, lead to groove, sealed baffle guide slot, sealed pad, motor mounting panel, driving motor and seal assembly by rectangular frame, first rectangle flange board, second rectangle flange board, air guide and constitute. The utility model relates to a high stability coal pulverizer picture peg door's beneficial effect lies in: the plug board door is installed in an inlet and outlet air duct of the coal mill, so that accurate, stable and efficient opening/closing actions can be realized, and the production efficiency and the safety factor of production operation are improved.

Description

High stability coal pulverizer picture peg door

Technical Field

The utility model belongs to the technical field of medium flow regulation application such as wind powder, flue gas, concretely relates to high stability coal pulverizer picture peg door.

Background

The flashboard door is a valve with a flashboard and a valve seat which are always in close contact and sealed. The electric gate valve is characterized in that the opening and closing part is a gate plate, the movement direction of the gate plate is perpendicular to the fluid direction, the electric gate valve can only be opened and closed completely and cannot be adjusted and throttled, the gate plate is provided with two sealing surfaces, and the two sealing surfaces of the most common mode gate valve form a wedge shape and a wedge angle which are different along with the valve parameters. The Gate (Slide Plate Gate) is also called Gate valve, spiral Gate valve, and Gate valve. And (3) classifying the inserting plate door: electric board-inserting door, manual board-inserting door and pneumatic board-inserting door.

The coal mill spile door is an important auxiliary device of a boiler, and is arranged in the occasions needing to be cut off and isolated, such as an inlet and outlet air duct of the coal mill, on a cold air duct and a hot air duct of the boiler in a thermal power plant, and the spile door is required to finish accurate, stable and efficient opening/closing actions so as to realize safe production operation. The phenomenon (transmission structure) of fracture, deformation easily appears after the long-term use in current picture peg door, can't accomplish accurate, stable and efficient and open/close the action, has increased production operation potential safety hazard, and unreasonable structural design simultaneously, inconvenient assembly, dismantlement and maintenance, and maintenance cost height, and this is present to wait to solve urgently.

Therefore, based on the above problem, the utility model provides a and a high stability coal pulverizer picture peg door.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a high stability coal pulverizer picture peg door, its overall structure reasonable in design, the assembly of being convenient for, dismantlement and maintenance, the picture peg door is installed in the coal pulverizer is imported and exported the wind channel, can realize accurate, stable and the efficient and open/close the action, has improved the factor of safety of production efficiency and production operation.

The technical scheme is as follows: the utility model provides a high stability coal pulverizer picture peg door, by the rectangle frame, and set up the first rectangle flange board on the rectangle frame, the second rectangle flange board, and set up the air guide through groove in rectangle frame one end, and set up the sealed baffle at the rectangle frame inner wall, and set up at rectangle frame one end inner wall and with the air guide through groove matched with the sealed baffle guide slot that uses, and set up the sealed pad in the sealed baffle guide slot, and set up the motor mounting panel at the other end outer wall of rectangle frame, and the driving motor who sets up on the motor mounting panel, and set up in rectangle frame and with the sealing assembly that the driving motor used mutually to constitute; seal assembly, including setting up the bearing installation cover at the other end inner wall of rectangular frame, and set up the bearing in the bearing installation cover, and set up in rectangular frame one end and lead to the groove with the air guide, the sealed baffle guide slot, the sealed closing plate that cooperatees and use, wherein, the both ends card of closing plate is gone into in the sealed baffle guide slot, and set up a set of transverse location board at closing plate one end outer wall, and the transverse location post of being connected with a set of transverse location board, and set up the internal thread hole in transverse location post, and one end and internal thread jogged joint, the other end runs through and the bearing, rectangular frame's threaded rod, wherein, the one end of threaded rod is passed through the.

This technical scheme, high stability coal pulverizer picture peg door still leads to the groove including the bar that sets up in the rectangular frame both sides, and sets up at closing plate both sides outer wall and the limiting plate that cooperatees and use with the groove is led to the bar, and sets up the limiting plate through-hole in the limiting plate, and runs through limiting plate through-hole and carry out spacing stop screw, stop nut to the limiting plate.

This technical scheme, high stability coal pulverizer picture peg door still includes the vertical backup pad that sets up on the motor mounting panel, and sets up the auxiliary stay bearing in the vertical backup pad, and wherein, the threaded rod runs through the auxiliary stay bearing.

According to the technical scheme, the sealing gasket is of a flexible structure.

Compared with the prior art, the utility model relates to a high stability coal pulverizer picture peg door's beneficial effect lies in: the plug board door is installed in an inlet and outlet air duct of the coal mill, so that accurate, stable and efficient opening/closing actions can be realized, and the production efficiency and the safety factor of production operation are improved.

Drawings

Fig. 1 is a schematic top view of a high stability coal mill insertion plate door of the present invention;

FIG. 2 is a schematic cross-sectional structural view of the rectangular frame, the sealing partition guide groove, the sealing gasket and the sealing plate of the high-stability coal mill spile door of the present invention;

fig. 3 is the utility model discloses a structural schematic of rectangle frame, first rectangle flange board, second rectangle flange board, closing plate, the logical groove of bar, limiting plate through-hole, stop screw, stop nut etc. of high stability coal pulverizer picture peg door.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

Examples

A high-stability coal mill spile door as shown in fig. 1, fig. 2 and fig. 3, which is composed of a rectangular frame 1, a first rectangular flange plate 2 and a second rectangular flange plate 3 which are arranged on the rectangular frame 1, an air guide through groove 4 arranged in one end of the rectangular frame 1, a seal baffle 20 arranged on the inner wall of the rectangular frame 1, a seal baffle guide groove 5 arranged on the inner wall of one end of the rectangular frame 1 and matched with the air guide through groove 4, a seal gasket 6 arranged in the seal baffle guide groove 5, a motor mounting plate 13 arranged on the outer wall of the other end of the rectangular frame 1, a driving motor 14 arranged on the motor mounting plate 13, and a seal assembly arranged in the rectangular frame 1 and matched with the driving motor 14; the sealing assembly comprises a bearing installation sleeve 11 arranged on the inner wall of the other end of the rectangular frame 1, a bearing 12 arranged in the bearing installation sleeve 11, a sealing baffle guide groove 5 arranged in one end of the rectangular frame 1 and used with an air guide through groove 4, and a sealing plate 7 matched with the sealing gasket 6 for use, wherein the two ends of the sealing plate 7 are clamped into the sealing baffle guide groove 5, a group of transverse positioning plates 8 arranged on the outer wall of one end of the sealing plate 7, a transverse positioning column 9 connected with the group of transverse positioning plates 8, an internal thread hole 10 arranged in the transverse positioning column 9, one end of the internal thread hole 10 is connected, the other end of the internal thread hole runs through the bearing 12, a threaded rod 21 of the rectangular frame 1, and one end of the threaded rod 21 is connected with a driving motor 14 through.

Further preferably, the high-stability coal mill spile door further comprises strip-shaped through grooves 25 arranged in two sides of the rectangular frame 1, limiting plates 16 arranged on the outer walls of two sides of the sealing plate 7 and matched with the strip-shaped through grooves 25 for use, limiting plate through holes 17 arranged in the limiting plates 16, limiting screw rods 18 and limiting nuts 19 penetrating through the limiting plate through holes 17 to limit the limiting plates 16, the high-stability coal mill spile door further comprises a vertical support plate 23 arranged on the motor mounting plate 13, and auxiliary support bearings 24 arranged in the vertical support plate 23, wherein, the threaded rod 21 penetrates through the auxiliary supporting bearing 24, and the sealing gasket 6 is of a flexible structure, so that when the sealing operation is ensured, the sealing plate 7 moves in the strip-shaped through groove 22 (no shaking phenomenon), so that accurate and stable sealing action is realized, and the sealing air tightness is improved.

The high stability coal pulverizer picture peg door of this structure, cylinder 10 still can set up hollow structure with the rectangle frame 1 other end that cooperatees and use, and cylinder 10 linkage closing plate 7 moves in inside, and wherein, the both sides of closing plate 7 are provided with the wearing layer (high temperature resistant) that sealed partition plate 20 cooperateed and use respectively, prolong closing plate 7's life, and improve and the sealed gas tightness between the sealed partition plate 20.

The high-stability coal mill spile door with the structure has the advantages of reliable sealing operation, flexible opening and closing and tight sealing, solves the problems of untight closing and overlong closing time of the traditional spile door, and has the characteristics of adjustment, isolation and sharing, flexible adjustment and no jamming.

The high-stability coal mill inserting plate door is characterized in that a threaded rod 21 is linked to rotate by controlling a driving motor 14 and a coupler 22, and the threaded rod 21 is connected with an internal threaded hole 10 in a transverse positioning column 9; when the threaded rod 21 rotates, the transverse positioning column 9, the group of transverse positioning plates 8 and the sealing plate 7 are linked through the internal threaded hole 10 to move towards one end of the rectangular frame 1 to seal the air guide through groove 4, so that sealing action is finished, otherwise, the threaded rod rotates reversely, and the threaded rod is opened.

The high-stability coal mill spile door with the structure has the highest working temperature of less than or equal to 600 ℃, the total-closing air leakage rate of less than 0.1 percent, and is suitable for cold and hot air pipelines containing powder.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a high stability coal pulverizer picture peg door which characterized in that: the sealing device is composed of a rectangular frame (1), a first rectangular flange plate (2) and a second rectangular flange plate (3) which are arranged on the rectangular frame (1), an air guide through groove (4) which is formed in one end of the rectangular frame (1), a sealing baffle plate (20) which is arranged on the inner wall of the rectangular frame (1), a sealing baffle plate guide groove (5) which is formed in the inner wall of one end of the rectangular frame (1) and is matched with the air guide through groove (4), a sealing gasket (6) which is arranged in the sealing baffle plate guide groove (5), a motor mounting plate (13) which is arranged on the outer wall of the other end of the rectangular frame (1), a driving motor (14) which is arranged on the motor mounting plate (13), and a sealing component which is arranged in the rectangular frame (1) and is matched with the driving motor (14) for; the sealing assembly comprises a bearing mounting sleeve (11) arranged on the inner wall of the other end of the rectangular frame (1), a bearing (12) arranged in the bearing mounting sleeve (11), and a sealing plate (7) which is arranged in one end of the rectangular frame (1) and is matched with the air guide through groove (4), the sealing clapboard guide groove (5) and the sealing gasket (6) for use, wherein, two ends of the sealing plate (7) are clamped in the guide groove (5) of the sealing baffle, a group of transverse positioning plates (8) arranged on the outer wall of one end of the sealing plate (7), transverse positioning columns (9) connected with the group of transverse positioning plates (8), internal thread holes (10) arranged in the transverse positioning columns (9), threaded rods (21) with one ends connected with the internal thread holes (10) and the other ends penetrating through the bearing (12) and the rectangular frame (1), wherein, one end of the threaded rod (21) is connected with the driving motor (14) through a coupling (22).

2. The high stability coal pulverizer spile door of claim 1, wherein: high stability coal pulverizer picture peg door still leads to groove (25) including the bar that sets up in rectangular frame (1) both sides, and sets up at closing plate (7) both sides outer wall and with the limiting plate (16) that the groove (25) matched with and use of bar, and set up limiting plate through-hole (17) in limiting plate (16), and run through limiting plate through-hole (17) and carry out spacing stop screw (18), stop nut (19) to limiting plate (16).

3. The high stability coal pulverizer spile door of claim 1, wherein: high stability coal pulverizer picture peg door still includes vertical backup pad (23) of setting on motor mounting panel (13), and sets up auxiliary stay bearing (24) in vertical backup pad (23), and wherein, threaded rod (21) run through auxiliary stay bearing (24).

4. The high stability coal pulverizer spile door of claim 1, wherein: the sealing gasket (6) is of a flexible structure.