CN211619173U

CN211619173U - Micro-fog self-circulation dust removal device applied to coal conveying system

Info

Publication number: CN211619173U
Application number: CN202020230592.7U
Authority: CN
Inventors: 郭海江
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-01
Filing date: 2020-03-01
Publication date: 2020-10-02
Anticipated expiration: 2030-03-01

Abstract

The utility model provides a micro-fog self-circulation dust removing device applied to a coal conveying system, which comprises a conveying frame; a group of conveying belts is fixedly arranged on the inner side of the conveying frame; the top of the gas-collecting hood is communicated with the inner side of the top of the coal dropping pipe through a circulating gas pipe. The setting of coal breakage pipe, be favorable to reducing the dust removal degree of difficulty, coal conveying system during operation coal cinder can fall into the coal breakage pipe through the opening at coal breakage pipe top earlier and drop downwards, coal cinder can contact the inboard buffering rubber strip of coal breakage pipe in this process, these rubber strips can provide cushioning effect for the coal cinder, the coal cinder falling speed is reduced to a small margin, the coal cinder can contact the hang plate after continuing to fall, speed can not be too fast when falling on the hang plate because the effect coal cinder of rubber strip, then slowly the landing is to the conveyer belt on, the dust that produces like this also can reduce, and the coal cinder of whereabouts is through two-layer buffering of buffering rubber strip and hang plate, also can greatly reduced the impact of coal cinder to the conveyer belt, extension conveyer belt life.

Description

Micro-fog self-circulation dust removal device applied to coal conveying system

Technical Field

The utility model belongs to the technical field of dust collecting equipment, more specifically say, in particular to little fog self-loopa dust collector of application in coal conveying system.

Background

The coal conveying system of the thermal power plant mainly undertakes the task of feeding coal to a raw coal bin of a boiler, a large amount of dust is generated in the process that raw coal is transported to a lower conveyor by a higher conveyor, the dust flies and is accumulated in a trestle, and serious fire hazard is buried in the trestle while the dust is harmful to the health of workers. At present, dust removal equipment used by a coal conveying system of a thermal power plant is mainly divided into a blowback bag dust remover, an electrostatic dust remover, a water impact dust remover, a powerless dust remover and the like.

For example, application number 201920676370.5's patent discloses a little fog self-loopa dust collector of thermal power factory coal conveying system, including band conveyer, baffle box, blanking self-loopa mechanism and dust removal mechanism that hinders, the cross-section of baffle box is the big trapezoidal of end opening down of an upper lip, and the baffle box includes sealing connection's roof and two curb plates, leaves certain clearance between curb plate lower extreme and band conveyer's the belt, is connected with the anti-overflow skirtboard through the holder on the outer wall of curb plate, and the lower extreme of anti-overflow skirtboard supports on the belt. The blanking self-circulation mechanism comprises a coal dropping pipe, a circulation pipe and a gas collecting cover, a draught fan is arranged on the circulation pipe, the dust preventing and removing mechanism comprises a first dust preventing curtain and a second dust preventing curtain, a first micro-mist spray head is arranged between the first dust preventing curtain and the coal dropping pipe and between the second dust preventing curtain and the gas collecting cover, and the first micro-mist spray head is fixed on a top plate in the guide chute. The utility model has the advantages of reasonable design, sealing performance is good, dust removal effect is good, has apparent economic value and social value.

Based on the above search, the above patent is combined with most coal conveying dust removing devices in the prior art, and the following problems exist when the coal conveying dust removing device is used: present coal conveying dust collector's coal breakage pipe all is a straight tubular structure, and the coal cinder can directly fall on the conveyer belt when the whereabouts, because the difference in height is great, so can increase the dust removal degree of difficulty because the collision produces a lot of dusts when falling on the conveyer belt, frequently strikes the conveyer belt moreover and also can accelerate the ageing speed of conveyer belt.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a micro-mist self-circulation dust removing device applied to a coal conveying system is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a little fog self-loopa dust collector of application in coal conveying system to the coal breakage pipe of solving present coal conveying dust collector all is a straight tubular structure, and the coal cinder can directly fall on the conveyer belt when the whereabouts, because the difference in height is great, so can produce a lot of dusts because of the collision when falling on the conveyer belt, increase the dust removal degree of difficulty, frequently strike the problem that the conveyer belt also can accelerate the ageing speed of conveyer belt moreover.

The utility model discloses the purpose and the efficiency of little fog self-loopa dust collector of application in coal conveying system are reached by following concrete technological means:

a micro-fog self-circulation dust removal device applied to a coal conveying system comprises a conveying frame; a group of conveying belts is fixedly arranged on the inner side of the conveying frame; the top of the conveying frame is fixedly provided with a dust hood through bolts; a group of isolation skirting belts are fixedly arranged on the left side and the right side of the dust hood; the top of the dust hood is fixedly provided with a coal dropping pipe through welding, and an empty groove on the inner side of the coal dropping pipe is communicated with an empty groove on the inner side of the dust hood; two water inlet pipes are embedded into two sides of the top of the dust hood; the bottoms of the two water inlet pipes are fixedly provided with a micro-fog spray head; the top of the dust hood is also fixedly provided with a gas collecting hood; the top of the gas-collecting hood is communicated with the inner side of the top of the coal dropping pipe through a circulating gas pipe.

Furthermore, forty elastic buffer rubber strips in five rows and eight columns are fixedly arranged on the inner side of the coal dropping pipe through a rectangular array.

Furthermore, the transverse distance between the buffer rubber strips on the inner side of the coal dropping pipe is 5cm, and the longitudinal distance between the buffer rubber strips is 8 cm.

Furthermore, an inclined plate is fixedly arranged at the bottom of the coal dropping pipe and on the inner side of the top of the dust hood, and the upper part of the left side of the inclined plate is connected with the left side of the bottom of the coal dropping pipe.

Furthermore, an included angle between the inclined plate at the bottom of the coal dropping pipe and the inner side plane at the top of the dust hood is 30 degrees.

Compared with the prior art, the utility model discloses following beneficial effect has:

the setting of coal breakage pipe, be favorable to reducing the dust removal degree of difficulty, coal conveying system during operation coal cinder can fall into the coal breakage pipe through the opening at coal breakage pipe top earlier and drop downwards, coal cinder can contact the inboard buffering rubber strip of coal breakage pipe in this process, these rubber strips can provide cushioning effect for the coal cinder, the coal cinder falling speed is reduced to a small margin, the coal cinder can contact the hang plate after continuing to fall, speed can not be too fast when falling on the hang plate because the effect coal cinder of rubber strip, then slowly the landing is to the conveyer belt on, the dust that produces like this also can reduce, and the coal cinder of whereabouts is through two-layer buffering of buffering rubber strip and hang plate, also can greatly reduced the impact of coal cinder to the conveyer belt, extension conveyer belt life.

Drawings

Fig. 1 is a schematic diagram of the left-side structure of the present invention.

Fig. 2 is a schematic diagram of the right-side structure of the present invention.

Fig. 3 is the utility model discloses the axle side structure sketch map of bowing after the dust excluding hood dissects.

Fig. 4 is a schematic view of the overhead side structure of the dust excluding hood after sectioning.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a carriage; 2. a conveyor belt; 3. a dust hood; 4. an isolation skirt; 5. a coal dropping pipe; 6. a circulating gas pipe; 7. a gas-collecting hood; 8. a water inlet pipe; 9. a micro-fog spray head.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 4:

the utility model provides a micro-fog self-circulation dust removing device applied to a coal conveying system, which comprises a conveying frame 1; a group of conveying belts 2 are fixedly arranged on the inner side of the conveying frame 1; the top of the conveying frame 1 is fixedly provided with a dust hood 3 through bolts; a group of isolation skirts 4 are fixedly arranged on the left side and the right side of the dust hood 3; the top of the dust hood 3 is fixedly provided with a coal dropping pipe 5 by welding, and a hollow groove on the inner side of the coal dropping pipe 5 is communicated with a hollow groove on the inner side of the dust hood 3; the included angle between the inclined plate at the bottom of the coal dropping pipe 5 and the inner side plane at the top of the dust hood 3 is 30 degrees, coal blocks can contact the inclined plate after continuously falling, the speed is not too high when the coal blocks fall onto the inclined plate under the action of the rubber strip, and then the coal blocks slowly slide downwards onto the conveying belt 2, so that the generated dust is reduced, then the dust can be reduced through water mist sprayed by the micro-mist spray head 9, and the falling coal blocks in the device are buffered by two layers of the buffer rubber strip and the inclined plate, so that the impact force of the coal blocks on the conveying belt 2 can be greatly reduced, and the service life of the conveying belt 2 is prolonged; the transverse distance between the buffering rubber strips on the inner side of the coal dropping pipe 5 is 5cm, the longitudinal distance between the buffering rubber strips is 8cm, when the coal conveying system works, coal blocks can firstly fall into the coal dropping pipe 5 through an opening in the top of the coal dropping pipe 5 and fall downwards, the coal blocks can contact the buffering rubber strips on the inner side of the coal dropping pipe 5 in the process, the rubber strips can provide a buffering effect for the coal blocks, the falling speed of the coal blocks is reduced in a small range, the distance between the rubber strips is similar to the diameter of the coal blocks, and the coal blocks cannot be greatly hindered; two water inlet pipes 8 are embedded into two sides of the top of the dust hood 3; the bottoms of the two water inlet pipes 8 are fixedly provided with a micro-fog nozzle 9; the top of the dust hood 3 is also fixedly provided with a gas collecting hood 7; the top of the gas-collecting hood 7 is communicated with the inner side of the top of the coal dropping pipe 5 through a circulating gas pipe 6.

Wherein, the inboard of coal breakage pipe 5 is provided with five rows eight rows through the fixed arrangement of rectangular array totally forty elastic buffer rubber strips, and the coal cinder can fall into coal breakage pipe 5 and drop downwards through the opening at 5 tops of coal breakage pipe earlier in the coal conveying system during operation, and the coal cinder can contact the inboard buffer rubber strip of coal breakage pipe 5 in this process, and these rubber strips can provide cushioning effect for the coal cinder, and the small size reduces coal cinder falling speed.

Wherein, the bottom of coal breakage pipe 5, the top inboard of dust excluding hood 3 is still fixed and is provided with a hang plate, the left side top of this hang plate links to each other with the bottom left side of coal breakage pipe 5, the coal cinder can contact the hang plate after continuing the whereabouts, because the effect coal cinder of rubber strip speed can not be too fast when falling on the hang plate, then slowly landing is on conveyer belt 2 downwards again, the dust that produces like this also can reduce, then can carry out the dust fall through little fog shower nozzle 9 spun water smoke, and the coal cinder of whereabouts is through two-layer buffering of buffering rubber strip and hang plate in this device, also can greatly reduced coal cinder to the impact of conveyer belt 2, extension conveyer belt 2 life.

The specific use mode and function of the embodiment are as follows:

in the utility model, when the device is used for dedusting a coal conveying system, the dust hood 3 is fixedly arranged at the top of the conveying frame 1, then the two water inlet pipes 8 are communicated with an external water supply pipeline, coal blocks can fall into the coal dropping pipe 5 through the opening at the top of the coal dropping pipe 5 and fall downwards when the coal conveying system works, the coal blocks can contact with the buffer rubber strips at the inner side of the coal dropping pipe 5 in the process, the rubber strips can provide buffer action for the coal blocks, the falling speed of the coal blocks is reduced by a small amplitude, the distance between the rubber strips is similar to the diameter of the coal blocks, the coal blocks can not have too large blocking action, the coal blocks can contact with the inclined plate after continuously falling, the coal blocks can not fall onto the inclined plate because of the action of the rubber strips, then slowly fall down onto the conveying belt 2, the dust generated in the way can be reduced, and then the dust can fall through the water mist sprayed by the micro-mist spray nozzle 9, and the coal cinder of whereabouts is through two-layer buffering of cushion rubber strip and hang plate in this device, also can greatly reduced coal cinder to the impact of conveyer belt 2, extension conveyer belt 2 life.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a little fog self-loopa dust collector of application in coal conveying system which characterized in that: comprises a conveying frame (1); a group of conveying belts (2) are fixedly arranged on the inner side of the conveying frame (1); the top of the conveying frame (1) is fixedly provided with a dust hood (3) through a bolt; a group of isolation skirts (4) are fixedly arranged on the left side and the right side of the dust hood (3); the top of the dust hood (3) is fixedly provided with a coal dropping pipe (5) through welding, and a hollow groove on the inner side of the coal dropping pipe (5) is communicated with a hollow groove on the inner side of the dust hood (3); two water inlet pipes (8) are embedded into two sides of the top of the dust hood (3); the bottoms of the two water inlet pipes (8) are fixedly provided with a micro-fog nozzle (9); a gas collecting hood (7) is fixedly arranged at the top of the dust hood (3); the top of the gas-collecting hood (7) is communicated with the inner side of the top of the coal dropping pipe (5) through a circulating gas pipe (6).

2. The fine mist self-circulation dust removing device applied to the coal conveying system according to claim 1, wherein: the inner side of the coal dropping pipe (5) is fixedly provided with forty elastic buffer rubber strips in five rows and eight columns through a rectangular array.

3. The fine mist self-circulation dust removing device applied to the coal conveying system according to claim 1, wherein: the distance between the buffer rubber strips on the inner side of the coal dropping pipe (5) in the transverse direction is 5cm, and the distance between the buffer rubber strips in the longitudinal direction is 8 cm.

4. The fine mist self-circulation dust removing device applied to the coal conveying system according to claim 1, wherein: the bottom of the coal dropping pipe (5) and the inner side of the top of the dust hood (3) are also fixedly provided with an inclined plate, and the upper part of the left side of the inclined plate is connected with the left side of the bottom of the coal dropping pipe (5).

5. The fine mist self-circulation dust removing device applied to the coal conveying system according to claim 1, wherein: and an included angle between the inclined plate at the bottom of the coal dropping pipe (5) and the inner side plane at the top of the dust hood (3) is 30 degrees.