CN214131954U

CN214131954U - In-mill dust collecting device of steel ball coal mill of power plant

Info

Publication number: CN214131954U
Application number: CN202022791998.5U
Authority: CN
Inventors: 邬兴国
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-07
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses an in-mill dust collecting device of a steel ball coal mill in a power plant, which comprises a base, wherein a box body is fixedly arranged on the upper surface of the inner side of the base, a storage box is inserted in the box body, the support rod is fixedly arranged in the left end of the cleaning bin, so that the stepping motor is conveniently fixed on the inner side of the support rod, the stepping motor drives the rotating shaft to rotate, the stirring rod is fixedly arranged on the rotating shaft, so that dust on the surface of coal in the cleaning bin can be cleaned conveniently, a material leaking hole is arranged below the cleaning bin, so that the dust in the cleaning bin can be conveniently discharged through the material leaking hole, a material guide plate is fixedly arranged below the cleaning bin, so that dust in the material leakage hole can be conveniently introduced into the material guide pipe through the material guide plate, the grinding bin is provided with a fixing ring through a bearing, so that dust in the guide pipe can be conveniently conveyed into the storage box through the fixing ring.

Description

In-mill dust collecting device of steel ball coal mill of power plant

Technical Field

The utility model belongs to the technical field of the steel ball coal pulverizer, specifically be dust collector in the mill of steel ball coal pulverizer of power plant.

Background

The steel ball coal mill is a rotary cylindrical roller or a roller with two conical ends, and steel balls are arranged in the roller. When the coal pulverizer works, the steel balls in the barrel continuously impact and extrude coal briquettes, the coal briquettes of the coal pulverizer are ground into coal powder, then hot air introduced into the barrel dries the coal and sends out the coal powder, and the coal powder with certain granularity is sent into a coal powder bin or directly sent into a coal powder burner after being separated by the separator. Most of the prior steel ball coal mill rollers are designed into simple cylindrical shapes, some steel balls are arranged in the rollers, the steel balls roll along the inner walls of the rollers when stirred, and the coal blocks can be milled by impacting the coal blocks.

The existing coal briquette surface contains a large amount of dust, and when the coal briquette is directly milled, the coal briquette is led to contain a large amount of dust, so that the coal combustion effect is reduced, the structure of the existing steel ball coal mill needs to be improved, an in-mill dust collecting device of the steel ball coal mill in a power plant is provided, and the problem of the proposal is better solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, an in-mill dust collecting device of a steel ball coal mill in a power plant is provided.

The utility model adopts the technical scheme as follows:

dust collecting device in mill of power plant's steel ball coal pulverizer, the on-line screen storage device comprises a base, the inboard fixed surface of base installs the box, the inside of box is pegged graft and is had the receiver, the filter disc has been placed on the inside ladder in upper end of receiver, the upper surface middle part fixed mounting of box has the conveying pipeline, the right wall fixed mounting of base has servo motor, the last pivot activity of servo motor runs through the right side stabilizer blade of base, and the tip fixed mounting of pivot has the toothed disc.

In a preferred embodiment, the both sides stabilizer blade upper end fixed mounting of base has fixed pipe, the right-hand member fixed mounting of fixed pipe has the feed inlet, the left side the left end fixed mounting of fixed pipe has the discharge gate, fixed pipe's relative end is gone up fixed mounting and is had the second bearing, and fixedly connected with grinding bin on the second bearing.

In a preferred embodiment, the right-hand member fixed mounting in the storehouse of milling has the ring gear, and the ring gear meshes with the toothed disc mutually, the middle part both sides position fixed mounting bearing in the storehouse of milling, and the inboard fixed mounting of bearing has solid fixed ring, the storehouse fixed mounting of milling is on the outer lane of bearing, and gu fixed ring fixed mounting is on the inner circle of bearing, gu fixed ring's inner wall below fixed mounting has the passage, and the passage is located the inside in the storehouse of milling.

In a preferred embodiment, a material guide plate is fixedly mounted at the upper end of the material guide pipe, a cleaning bin is placed inside the milling bin, and the right end of the cleaning bin is fixedly connected to the left end of the right side fixing pipe.

In a preferred embodiment, the inside fixed mounting in left end in clearance storehouse has the bracing piece, the inboard fixed mounting of bracing piece has step motor, fixed mounting has the puddler in the pivot on step motor right side, the below in clearance storehouse is opened there is the hole that leaks.

In a preferred embodiment, the material leaking hole is located on the inner side of the material guiding disc, and the material guiding disc is fixedly connected to the lower surface of the cleaning bin.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the dust removal to the coal is convenient for better for the coal is difficult to contain impurity in the process of milling, increases the coal combustion stability.

1. The utility model discloses in, there is the bracing piece through the inside fixed mounting in the left end of clearance storehouse, be convenient for fix step motor in the inboard of bracing piece, make step motor drive pivot rotate, fixed mounting has the puddler in the pivot, be convenient for clear up the inside coal surface dust in clearance storehouse, it has the hole of leaking to open in the below in clearance storehouse, be convenient for discharge the dust in the clearance storehouse through the hole of leaking, there is the baffle disc at the below fixed mounting in clearance storehouse, be convenient for introduce the dust in the hole of leaking into the passage through the baffle disc.

2. The utility model discloses in, install solid fixed ring through the bearing on the storehouse of milling, be convenient for carry the receiver with the dust in the passage through solid fixed ring in, placed the filter disc in the receiver, be convenient for filter once more the dust for tiny coal obtains collecting, increases the rate of recovery of coal, makes the difficult production of coal extravagant.

Drawings

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

FIG. 2 is a sectional view of the milling chamber of the present invention;

fig. 3 is a sectional view of the storage box of the present invention.

The labels in the figure are: 1-base, 2-box, 3-receiver, 4-filter disc, 5-conveying pipeline, 6-servo motor, 7-gear disc, 8-fixed pipe, 9-feed inlet, 10-discharge outlet, 11-grinding bin, 12-gear ring, 13-bearing, 14-fixed ring, 15-guide pipe, 16-guide disc, 17-cleaning bin, 18-support rod, 19-stepping motor, 20-stirring rod, 21-leaking hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 and 3, dust collecting device in mill of steel ball coal pulverizer of power plant, including base 1, fixed surface installs box 2 on base 1's the inboard, box 2's inside is pegged graft and is had receiver 3, filter disc 4 has been placed on the inside ladder in upper end of receiver 3, be convenient for filter the dust once more, make tiny coal obtain collecting, increase the rate of recovery of coal, make the difficult waste that produces of coal, the upper surface middle part fixed mounting of box 2 has conveying pipeline 5, base 1's right wall fixed mounting has servo motor 6, the pivot activity on the servo motor 6 runs through base 1's right side stabilizer blade, and the tip fixed mounting of pivot has toothed disc 7.

Referring to fig. 1 and 2, a fixed pipe 8 is fixedly installed at the upper end of the legs at both sides of the base 1, a feed inlet 9 is fixedly installed at the right end of the fixed pipe 8, a discharge outlet 10 is fixedly installed at the left end of the left fixed pipe 8, a second bearing is fixedly installed at the opposite end of the fixed pipe 8, and the second bearing is fixedly connected with a milling bin 11, the right end of the milling bin 11 is fixedly provided with a gear ring 12, and the gear ring 12 is meshed with the gear disc 7, bearings 13 are fixedly arranged at the two sides of the middle part of the milling bin 11, and the inner side of the bearing 13 is fixedly provided with a fixed ring 14, the milling bin 11 is fixedly arranged on the outer ring of the bearing 13, and the fixing ring 14 is fixedly installed on the inner ring of the bearing 13, so that the dust in the guide tube 15 can be conveniently conveyed to the accommodating case 3 through the fixing ring 14, a material guide pipe 15 is fixedly arranged below the inner wall of the fixing ring 14, and the material guide pipe 15 is positioned inside the milling bin 11.

Referring to fig. 2, a guide plate 16 is fixedly installed at the upper end of the guide tube 15, so that dust in the discharge holes 21 is introduced into the guide tube 15 through the guide plate 16, the material guide plate 16 is fixedly connected with the lower surface of the cleaning bin 17, the cleaning bin 17 is arranged in the grinding bin 11, the right end of the cleaning bin 17 is fixedly connected with the left end of the right fixing pipe 8, a supporting rod 18 is fixedly arranged in the left end of the cleaning bin 17, a stepping motor 19 is conveniently fixed on the inner side of the supporting rod 18, make step motor 19 drive the pivot and rotate, the inboard fixed mounting of bracing piece 18 has step motor 19, fixed mounting has puddler 20 in the pivot on step motor 19 right side, is convenient for clear up the inside coal surface dust in clearance storehouse 17, and it has hopper hole 21 to open the below in clearance storehouse 17, is convenient for discharge the dust in the clearance storehouse 17 through hopper hole 21, and hopper hole 21 is located the inboard of baffle disc 16.

The working principle is as follows: when the coal needs to be milled, the servo motor 6 and the stepping motor 19 are opened, the coal is poured into the cleaning bin 17 through the feeding port 9, the coal enters the cleaning bin 17 through the fixed pipe 8, the stirring rod 20 is driven to rotate under the action of the stepping motor 19, dust can be cleaned from the coal in the cleaning bin 17, the cleaned coal enters the milling bin 11 through the left end of the cleaning bin 17, the milling bin 11 is driven to rotate under the action of the servo motor 6, steel balls in the milling bin 11 mill the coal, the cleaned dust falls into the material guide plate 16 through the material leakage holes 21 and then enters the material guide plate 15 through the material guide plate 16, the coal in the material guide pipe 15 enters the material conveying pipe 5 through the fixed ring 14, the coal falls into the containing box 3 under the action of the material conveying pipe 5 and is collected, the coal in the dust can be filtered and collected under the action of the filter plate 4, so that coal is not easy to waste.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Dust collecting device in mill of power plant's steel ball coal pulverizer includes base (1), its characterized in that: fixed surface installs box (2) on the inboard of base (1), it has receiver (3) to peg graft in the inside of box (2), filter disc (4) have been placed on the inside ladder in upper end of receiver (3), the upper surface middle part fixed position of box (2) installs conveying pipeline (5), the right wall fixed mounting of base (1) has servo motor (6), the right side stabilizer blade of base (1) is run through in the pivot activity on servo motor (6), and the tip fixed mounting of pivot has toothed disc (7).

2. The in-mill dust collecting device of the power plant steel ball coal mill as claimed in claim 1, wherein: fixed pipe (8) are installed to the both sides stabilizer blade upper end fixed mounting of base (1), the right-hand member fixed mounting of fixed pipe (8) has feed inlet (9), the left side the left end fixed mounting of fixed pipe (8) has discharge gate (10), fixed mounting has the second bearing on the relative end of fixed pipe (8), and fixedly connected with grinds storehouse (11) on the second bearing.

3. The in-mill dust collecting device of the power plant steel ball coal mill as claimed in claim 2, wherein: the utility model discloses a grinding machine, including grinding bin (11), gear ring (12), gear plate (7), middle part both sides fixed mounting bearing (13) of grinding bin (11), and the inboard fixed mounting of bearing (13) have solid fixed ring (14), grinding bin (11) fixed mounting is on the outer lane of bearing (13), and solid fixed ring (14) fixed mounting is on the inner circle of bearing (13), the inner wall below fixed mounting of solid fixed ring (14) has passage (15), and passage (15) are located the inside of grinding bin (11).

4. The in-mill dust collecting device of the power plant steel ball coal mill as claimed in claim 3, wherein: the material guide device is characterized in that a material guide disc (16) is fixedly mounted at the upper end of the material guide pipe (15), a cleaning bin (17) is placed inside the milling bin (11), and the right end of the cleaning bin (17) is fixedly connected to the left end of the right side fixing pipe (8).

5. The in-mill dust collecting device of the power plant steel ball coal mill as claimed in claim 4, wherein: the inside fixed mounting in left end in clearance storehouse (17) has bracing piece (18), the inboard fixed mounting of bracing piece (18) has step motor (19), fixed mounting has puddler (20) in the pivot on step motor (19) right side, open the below in clearance storehouse (17) has hourglass material hole (21).

6. The in-mill dust collecting device of the power plant steel ball coal mill as claimed in claim 5, wherein: the material leaking holes (21) are positioned on the inner side of the material guide plate (16), and the material guide plate (16) is fixedly connected to the lower surface of the cleaning bin (17).