CN223178178U - Coal mill inlet hot primary air high temperature sealing butterfly valve - Google Patents

Abstract

The utility model discloses a high-temperature sealing butterfly valve for hot primary air of an inlet of a coal mill, which comprises a valve body, wherein a disc is rotatably arranged on the inner wall of the valve body, a sealing buckling block is fixedly connected with the edge of the side surface of the disc, the sealing buckling block is inserted and combined with a sealing buckling groove, a rotary gear is arranged at the upper end of the disc, a transmission gear is arranged at one side of the rotary gear in a meshed manner, a driving gear is arranged at one side of the transmission gear in a meshed manner, and a turntable is arranged at the upper end of the driving gear. This coal pulverizer entry hot primary air high temperature seal butterfly valve can seal through the dish double bank, can carry out the lock with dish and limit stop through sealed catching groove, sealed knot piece moreover and seal, and sealed effect is good, and is more stable, can drive dish meshing linkage rotation through drive gear, rotation gear moreover, and the switching is more convenient to communicating pipe can be installed through locking bolt, screw thread mounting groove, screw thread collar and valve body are quick stable, convenient to use.

Description

Hot primary air high temperature seal butterfly valve for coal mill inlet

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a hot primary air high-temperature sealing butterfly valve for an inlet of a coal mill.

Background

The coal mill is a machine for crushing and grinding coal blocks into coal powder, is an important auxiliary device of a coal powder furnace, and needs to use a butterfly valve to control opening and closing at an inlet air guide position.

The butterfly valve is also called as a flap valve, and is a valve which has a simple structure and can be used for opening and closing low-pressure pipeline media.

The high-tightness high-temperature butterfly valve without jamming in the prior art CN213541326U has the advantages that the sealing effect is good, the valve cover and the valve cover overturning mechanism are arranged to avoid jamming of the valve cover and the valve body in a high-temperature state, the sealing structure of the prior equipment is single, the sealing structure is unstable, the opening and closing operation is inconvenient, and the installation and the use are inconvenient, so that the problem of the high-temperature sealing butterfly valve of the hot primary air of the inlet of the coal mill is solved.

Disclosure of utility model

The utility model aims to provide a high-temperature sealing butterfly valve for hot primary air at an inlet of a coal mill, which solves the problems that the sealing structure of the high-temperature butterfly valve with high sealing performance and no jamming is single, the sealing structure is unstable, the opening and closing operations are inconvenient, and the installation and the use are inconvenient.

The technical scheme includes that the hot primary air high-temperature sealing butterfly valve for the coal mill inlet comprises a valve body, one side of the valve body is communicated with a communicating pipe, a turntable is arranged at the upper end of the valve body, two sides of the valve body are provided with communicating interfaces, the inner wall of each communicating interface is provided with a threaded mounting groove, the inner wall of each threaded mounting groove is provided with a threaded mounting ring in a plugging manner, one end of each threaded mounting ring is communicated with the communicating pipe, the edge of the outer wall of each communicating interface is provided with a locking bolt in a plugging manner, the inner wall of the valve body is provided with a limit stop in a fitting manner, one side of the limit stop is provided with a sealing buckling groove, the inner wall of the valve body is rotatably provided with a disc, the side edge of the disc is fixedly connected with a sealing buckling block, the sealing buckling block is in plugging manner with the sealing buckling groove, the upper end of the disc is provided with a rotary gear, one side of the rotary gear is provided with a transmission gear in a meshing manner, one side of the transmission gear is provided with a driving gear, the turntable is provided with the upper end of the driving gear, and the outer wall of the driving gear and the rotary gear is provided with a protective cover.

Preferably, the valve body is rotatably spliced and installed with the communicating pipe through the threaded mounting groove and the threaded mounting ring, and rubber materials are wrapped on the inner wall of the threaded mounting groove and the outer wall of the threaded mounting ring.

Preferably, the communicating pipe is fixedly installed through the locking bolt and the communicating interface in a bolt clamping mode, and the locking bolts are distributed in annular positions on the communicating interface.

Preferably, the protective cover is made of metal, and the protective cover is in closed cover installation with the outer walls of the transmission gear, the driving gear and the rotating gear.

Preferably, the disc is in two groups of parallel distribution in the inner wall of the valve body, and is in meshed linkage rotary connection with the valve body through the transmission gear, the driving gear and the rotary gear, and the disc and the valve body are made of high-temperature alloy materials.

Preferably, the disc is in buckling sealing connection with the limit stop through the sealing buckling groove and the sealing buckling block.

Compared with the prior art, the hot primary air high-temperature sealing butterfly valve for the coal mill inlet has the advantages that the butterfly valve can be sealed through the double groups of the disks, the disks and the limit stop block can be buckled and sealed through the sealing buckling grooves and the sealing buckling blocks, the sealing effect is good and stable, the disks can be driven to mesh and rotate in a linkage manner through the transmission gear, the driving gear and the rotating gear, the opening and the closing are more convenient, and the communicating pipe can be quickly and stably installed with the valve body through the locking bolts, the thread installation grooves and the thread installation rings, and the use is convenient.

Drawings

FIG. 1 is a front view of a hot primary air high temperature seal butterfly valve at the inlet of a coal mill;

FIG. 2 is a schematic diagram of the internal structure of a hot primary air high-temperature sealing butterfly valve at the inlet of the coal mill;

FIG. 3 is a schematic top view of the internal structure of the hot primary air high-temperature sealing butterfly valve at the inlet of the coal mill;

FIG. 4 is an enlarged view of the inlet hot primary air high temperature sealing butterfly valve of the coal mill of the utility model at A in FIG. 2;

FIG. 5 is an enlarged view of the hot primary air high temperature sealing butterfly valve at B in FIG. 2 of the coal pulverizer inlet of the present utility model;

FIG. 6 is an enlarged view of the hot primary air high temperature sealing butterfly valve at C in FIG. 3 of the coal pulverizer inlet of the present utility model.

In the figure, 1, a valve body, 2, a communicating pipe, 3, a protective cover, 4, a turntable, 5, a disc, 6, a communicating interface, 7, a locking bolt, 8, a thread installation groove, 9, a thread installation ring, 10, a transmission gear, 11, a driving gear, 12, a rotating gear, 13, a limit stop, 14, a sealing buckling groove, 15 and a sealing buckling block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the utility model provides a technical scheme that an inlet hot primary air high-temperature sealing butterfly valve of a coal mill comprises a valve body 1, a communicating pipe 2, a protective cover 3, a turntable 4, a dish 5, a communicating interface 6, a locking bolt 7, a thread mounting groove 8, a thread mounting ring 9, a transmission gear 10, a driving gear 11, a rotating gear 12, a limit stop 13, a sealing buckling groove 14 and a sealing buckling block 15, wherein the communicating pipe 2 is arranged on one side of the valve body 1 in a communicating way, the turntable 4 is arranged at the upper end of the valve body 1, the valve body 1 is arranged in a rotary splicing communicating way with the communicating pipe 2 through the thread mounting groove 8 and the thread mounting ring 9, and rubber materials are wrapped on the inner wall of the thread mounting groove 8 and the outer wall of the thread mounting ring 9, so that the valve body 1 is convenient to carry out quick rotary sealing installation with the communicating pipe 2.

Communicating pipe 2 is bolt clamping fixed mounting through locking bolt 7 and communication interface 6, and locking bolt 7 is annular position distribution on communication interface 6, make communicating pipe 2 can assist fixedly like this, the installation is stable, communication interface 6 is installed to valve body 1 both sides, and screw thread mounting groove 8 has been seted up to communication interface 6 inner wall, screw thread mounting groove 8 inner wall cartridge installs screw thread collar 9, and screw thread collar 9 one end is linked together with communicating pipe 2, locking bolt 7 is installed to communication interface 6 outer wall edge cartridge, limit stop 13 is installed in the laminating of valve body 1 inner wall, and limit stop 13 one side has been seted up sealed catching groove 14, valve body 1 inner wall rotatory install dish 5, and dish 5 side edge fixedly connected with seals the catching piece 15, dish 5 is two sets of parallel distribution in valve body 1 inner wall, and dish 5 is meshing linkage swivelling joint through drive gear 10, driving gear 11, swivelling gear 12 and valve body 1, dish 5 and valve body 1 are the superalloy material, make dish 5 can carry out the bi-component cloth like this, and can carry out the meshing and rotate, it is convenient to open and close.

The dish 5 is lock sealing connection through sealed catching groove 14, sealed knot piece 15 and limit stop 13, make the dish 5 can carry out the lock like this and seal, the closure effect is better, sealed knot piece 15 is inserted with sealed catching groove 14 and is closed the installation, rotatory gear 12 is installed to dish 5 upper end, and rotatory gear 12 one side meshing is installed drive gear 10, drive gear 11 is installed to drive gear 10 one side meshing, and carousel 4 is installed to drive gear 11 upper end, drive gear 10, drive gear 11 and rotatory gear 12 outer wall are installed protection casing 3, protection casing 3 is the metal material, and protection casing 3 and drive gear 10, drive gear 11 and rotatory gear 12 outer wall are the sealed cover and close the installation, make like this protection casing 3 can be with drive gear 10, drive gear 11 and rotatory gear 12 cover, the protection effect is good, avoid damaging.

When the high-temperature sealing butterfly valve for the hot primary air at the inlet of the coal mill is used, firstly, a threaded mounting groove 8 and a threaded mounting ring 9 of a valve body 1 of the device are rotatably spliced and mounted with a communicating pipe 2, then a locking bolt 7 is rotatably screwed, the communicating pipe 2 is clamped and fixed, then air guiding is used, when the high-temperature sealing butterfly valve is required to be closed, a disc 5 is driven to be rotatably closed in a linkage manner through a transmission gear 10, a driving gear 11 and a rotating gear 12, then the high-temperature sealing butterfly valve is mounted through a sealing buckling groove 14 and a sealing buckling block 15 in a buckling manner with a limit stop 13, so that sealing is formed, and when the high-temperature sealing butterfly valve is impacted, the high-temperature sealing butterfly valve for the hot primary air at the inlet of the coal mill can be used in a shielding manner through covering and protecting the transmission gear 10, the driving gear 11 and the rotating gear 12 through a protective cover 3.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a coal pulverizer entry hot primary air high temperature seal butterfly valve, includes valve body (1), communicating pipe (2) are installed in valve body (1) one side intercommunication, and carousel (4) are installed to valve body (1) upper end, wherein, communication interface (6) are installed to valve body (1) both sides, and screw thread mounting groove (8) have been seted up to communication interface (6) inner wall, screw thread mounting ring (9) are installed to screw thread mounting groove (8) inner wall cartridge, and screw thread mounting ring (9) one end is linked together with communicating pipe (2), locking bolt (7) are installed to communication interface (6) outer wall edge cartridge, limit stop (13) are installed in valve body (1) inner wall laminating, and limit stop (13) one side has been seted up sealed catching groove (14), dish (5) are installed in valve body (1) inner wall rotation, and dish (5) side edge fixedly connected with seal catching piece (15), seal catching piece (15) and seal catching groove (14) cartridge installation, rotatory gear (12) are installed to dish (5) upper end, and rotatory gear (10) are installed to rotation gear (12), and gear (10) are installed to one side, gear (10) meshing gear (10) is installed to drive gear (10), and one side is installed to drive gear (10) meshing gear (10) The outer walls of the driving gear (11) and the rotating gear (12) are provided with a protective cover (3).

2. The hot primary air high-temperature sealing butterfly valve of the coal mill inlet according to claim 1, wherein the valve body (1) is rotatably spliced and communicated with the communicating pipe (2) through a threaded mounting groove (8) and a threaded mounting ring (9), and rubber materials are wrapped on the inner wall of the threaded mounting groove (8) and the outer wall of the threaded mounting ring (9).

3. The hot primary air high-temperature sealing butterfly valve of the coal mill inlet according to claim 2, wherein the communicating pipe (2) is fixedly installed with the communicating interface (6) through bolt clamping by a locking bolt (7), and the locking bolts (7) are distributed on the communicating interface (6) in annular positions.

4. The hot primary air high-temperature sealing butterfly valve of the coal mill inlet according to claim 3, wherein the protective cover (3) is made of metal, and the protective cover (3) is in sealing and covering installation with the outer walls of the transmission gear (10), the driving gear (11) and the rotating gear (12).

5. The hot primary air high-temperature sealing butterfly valve for the coal mill inlet according to claim 4, wherein the discs (5) are distributed in two groups in parallel on the inner wall of the valve body (1), the discs (5) are in meshed linkage rotary connection with the valve body (1) through a transmission gear (10), a driving gear (11) and a rotary gear (12), and the discs (5) and the valve body (1) are made of high-temperature alloy materials.

6. The hot primary air high-temperature sealing butterfly valve of the coal mill inlet according to claim 5, wherein the dish (5) is in buckling sealing connection with the limit stop (13) through a sealing buckling groove (14) and a sealing buckling block (15).