CN212068964U

CN212068964U - Novel fan coal mill

Info

Publication number: CN212068964U
Application number: CN202020244526.5U
Authority: CN
Inventors: 施原; 施嘉楠
Original assignee: Shenyang Jintong Heavy Machinery Manufacturing Co ltd
Current assignee: Shenyang Jintong Heavy Machinery Manufacturing Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-12-04
Anticipated expiration: 2030-03-03

Abstract

The utility model discloses a novel fan coal mill, which relates to the technical field of fan coal mills and solves the technical problems that the prior beating wheel realizes the transportation of coal by adopting a coal inlet door mode, thereby reducing the working efficiency of the coal mill, and the impact between coal blocks and the coal inlet door reduces the service life of the coal mill, reduces the reliability of the coal mill and increases the working energy consumption, comprising a machine case, wherein a feeding chamber is arranged in the machine case, a channel is fixedly arranged on the outer wall surface of the machine case and is communicated with the feeding chamber, the utility model directly transports the coal blocks to the back disc of the beating wheel through a flow guide device for crushing, evenly distributes the coal blocks, reduces the collision between the coal blocks and the internal parts of the coal mill, protects the beating wheel by using an anti-abrasion front plate, an anti-abrasion back plate and an anti-abrasion disc, improves the service life of the coal mill, absorbs the vibration generated when the beating wheel runs through a damping device, the working stability of the coal mill is improved, and the coal mill can work more reliably.

Description

Novel fan coal mill

Technical Field

The utility model relates to a fan coal pulverizer technical field specifically is a novel fan coal pulverizer.

Background

A high-speed coal mill for grinding coal into pulverized coal by utilizing a high-speed rotating fan type impact impeller is used for a coal pulverizing device for providing fuel for a coal-fired boiler in a thermal power plant, integrates drying, pulverizing and powder conveying, and is a novel coal mill in a coal pulverizing system of the coal-fired power plant.

For example, in a utility model patent with a fan coal mill beater wear-proof structure and a publication number of CN206838206U, a conical cover is additionally arranged on the fan coal mill to cover the exposed rear disc, so that the raw coal can not directly hit the rear disc of the beater due to inertia after entering through the door of the coal inlet door, thereby preventing the raw coal from directly impacting the rear disc of the beater, thereby protecting the rear disc, and a coal equalizing disc and a coal baffle are additionally arranged on the basis of the conical cover, thereby fundamentally solving the problem of the rear disc wear of the coal mill beater, and the coal mill beater wear-proof treatment technical improvement project obtains more obvious results, enhances the safe and stable operation of the coal mill, improves the operation reliability of the coal mill, but the existing beater realizes the coal transportation by adopting the coal inlet door mode, thereby reducing the working efficiency of the coal mill, and the coal blocks are impacted with the coal inlet door, so that the service life of the coal mill is shortened, the reliability of the coal mill is reduced, and the working energy consumption is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a novel fan coal pulverizer has solved current hitting wheel and has adopted the transportation that advances the coal door mode and realize the coal, has reduced the work efficiency of coal pulverizer from this to the coal cinder with advance the striking between the coal door, reduced the life of coal pulverizer, reduced the reliability of coal pulverizer, increased the technical problem of work energy consumption.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a novel fan coal pulverizer, includes quick-witted case, the quick-witted incasement is equipped with the feed space, fixed mounting passageway on the quick-witted case outer wall, the passageway communicates with each other with the feed space, quick-witted case front end inner room movable mounting has the beater, be equipped with the shaft hole on the beater back plate, the drive shaft is equipped with in the interpolation of shaft hole, fixed mounting has guiding device in the feed space, guiding device communicates with each other with beater inner ring, fixed mounting has the support frame on the quick-witted case outer lower wall, fixed mounting has a universal wheel on the wall under the support frame, fixed mounting has damping device on the quick-witted case front end outer lower wall.

Preferably, the guiding device comprises a concave plate, the concave plate is fixedly installed in the feeding chamber, the concave plate is communicated with the inner ring of the striking wheel, two sides of the concave plate are respectively and fixedly provided with an L-shaped baffle, and the L-shaped baffles are communicated with the inner cavity of the striking wheel.

Preferably, the cross sections of the concave plate and the L-shaped baffle are in a stepped structure.

Preferably, an inclination angle of 30-40 degrees is formed between the concave plate and the front end of the L-shaped baffle plate and the lower wall surface of the feeding chamber.

Preferably, damping device includes a pair of mount pad that the structure is the same, and is a pair of mount pad fixed mounting is on quick-witted case front end outer wall down, and is a pair of be equipped with the inner chamber in the mount pad, the spout has been seted up on the inner chamber lateral wall face, slidable mounting has the slider in the spout, fixedly connected with lifter on the slider, lifter one end runs through the inner chamber, fixedly connected with damping spring between the wall on the lifter other end and the inner chamber, the lifter runs through to serve fixed mounting have the second universal wheel.

Preferably, an anti-abrasion front plate and an anti-abrasion rear plate are fixedly mounted in the inner chamber at the front end of the chassis, and the anti-abrasion front plate and the anti-abrasion rear plate are respectively contacted with a front disc and a rear disc on the striking wheel.

Preferably, the inner wall surface of the rear disc of the striking wheel is fixedly provided with anti-grinding discs at two sides of the driving shaft.

Preferably, the antifriction disc is connected with the rear disc of the striking wheel through bolts.

Advantageous effects

The utility model provides a novel fan coal pulverizer has solved current beater and has adopted the transportation that advances the coal door mode and realize the coal, has reduced the work efficiency of coal pulverizer from this to the coal cinder and advance striking between the coal door, reduced the life of coal pulverizer, reduced the reliability of coal pulverizer, increased the technical problem of work energy consumption, the utility model discloses a guiding device directly transports the coal cinder to smash on the beater rear disc, even cloth, reduce the collision between coal cinder and the inside spare part of coal pulverizer to use abrasionproof front bezel, abrasionproof rear bezel and abrasionproof dish and protect the beater, improve the life of coal pulverizer, absorb the vibrations that produce when beater moves through damping device, improve the job stabilization nature of coal pulverizer, make the coal pulverizer work more reliable.

Drawings

Fig. 1 is the structure schematic diagram of the novel fan coal mill in the front view.

Fig. 2 is the utility model discloses a novel shock attenuation of fan coal pulverizer device schematic structure diagram.

Fig. 3 is a schematic structural view of a flow guiding device of a novel fan coal mill.

In the figure: 1-a chassis; 2-a feeding chamber; 3-a channel; 4-a striking wheel; 5-a drive shaft; 6-a support frame; 7-a first universal wheel; 8-a concave plate; 9-L-shaped baffles; 10-a mounting seat; 11-lumen; 12-a chute; 13-a slide block; 14-a lifting rod; 15-a damping spring; 16-a second universal wheel; 17-wear prevention front plate; 18-wear prevention of the back plate; 19-millstone prevention; 20-bolt.

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 a technical solution: a novel fan coal mill comprises a machine case 1, wherein a feeding chamber 2 is arranged in the machine case 1, a channel 3 is fixedly installed on the outer wall surface of the machine case 1, the channel 3 is communicated with the feeding chamber 2, a striking wheel 4 is movably installed in an inner chamber at the front end of the machine case 1, a shaft hole is formed in the rear disc of the striking wheel 4, a driving shaft 5 is inserted in the shaft hole, a flow guide device is fixedly installed in the feeding chamber 2 and is communicated with an inner ring of the striking wheel 4, a supporting frame 6 is fixedly installed on the outer lower wall surface of the machine case 1, a first universal wheel 7 is fixedly installed on the lower wall surface of the supporting frame 6, a damping device is fixedly installed on the outer lower wall surface of the front end of the machine case 1, the flow guide device comprises a concave plate 8, the concave plate 8 is fixedly installed in the feeding chamber 2, the concave plate 8 is communicated with the inner ring of the striking wheel 4, two sides of the concave plate, the L-shaped baffle 9 is communicated with the inner cavity of the striking wheel 4, the cross sections of the concave plate 8 and the L-shaped baffle 9 are of a step-shaped structure, an inclination angle of 30-40 degrees is formed between the front ends of the concave plate 8 and the L-shaped baffle 9 and the lower wall surface of the feeding chamber 2, the damping device comprises a pair of mounting seats 10 with the same structure, the pair of mounting seats 10 are fixedly mounted on the outer lower wall surface of the front end of the case 1, the inner cavities are arranged in the pair of mounting seats 10, sliding grooves 12 are formed in the side wall surfaces of the inner cavities 11, sliding blocks 13 are slidably mounted in the sliding grooves 12, lifting rods 14 are fixedly connected onto the sliding blocks 13, one ends of the lifting rods 14 penetrate through the inner cavities, damping springs 15 are fixedly connected between the other ends of the lifting rods 14 and the upper wall surface of the inner cavities 11, second universal wheels 16 are fixedly mounted on the penetrating ends of the lifting rods 14, and an anti, the anti-abrasion front plate 17 and the anti-abrasion rear plate 18 are respectively contacted with a front disc and a rear disc on the striking wheel 4, anti-abrasion discs 19 are fixedly mounted on the inner wall surface of the rear disc of the striking wheel 4 at two sides of the driving shaft 5, and the anti-abrasion discs 19 are connected with the rear disc of the striking wheel 4 through bolts 20.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Example (b): as can be seen from the attached figures 1-3 of the specification, when in use, the driving shaft 5 drives the striking wheel 4 to rotate, coal blocks enter the feeding chamber 2 through the feeding hole at the upper end of the case 1 and the channel 3, and under the action of the stepped structures of the concave plate 8 and the L-shaped baffle 9, the coal blocks uniformly fall into the groove of the concave plate 8 and slide into the striking wheel 4 through the inclination angle of the concave plate 8, the striking wheel 4 rotates, and the coal blocks are crushed through the striking plate on the striking wheel 4, when the striking wheel 4 rotates, the center of the striking wheel is a negative pressure area, a gap between the coal blocks and the striking wheel 4 leaks into the rear disc of the striking wheel 4, under the action of vortex air flow, the rear disc of the striking wheel 4 is washed, the rear disc of the striking wheel 4 is additionally provided with the anti-abrasion plate 19, the impact between coal powder and the rear disc of the striking wheel 4 is prevented, the coal powder is prevented from damaging the striking wheel 4, the front plate 17 and the anti-abrasion plate 18 are arranged between the front disc and the rear disc of the case 1 and the rear disc of the striking wheel, reduce hitting wheel 4 and quick-witted case front end inner chamber and produce the friction, reduce the wearing and tearing of hitting wheel 4, produce vibrations when hitting wheel 4 rotates the work, quick-witted case front end has the trend of pushing down mount pad 10 downwards this moment, mount pad 10 moves down this moment, mount pad 10 compresses damping spring 15 downwards along spout 12 direction under the effect of slider 13, damping spring 15 absorbs the shock attenuation of pressure utmost this moment, lifter 14 plays the supporting role, thereby prevent that the vibrations that hitting wheel 4 produced from influencing quick-witted case 1 whole operating condition, improve the stability of coal pulverizer.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a novel fan coal pulverizer, includes quick-witted case (1), its characterized in that, be equipped with feed space (2) in quick-witted case (1), fixed mounting passageway (3) on quick-witted case (1) outer wall, passageway (3) communicate with each other with feed space (2), quick-witted case (1) front end inner room movable mounting has beater wheel (4), be equipped with the shaft hole on beater wheel (4) back plate, the shaft hole interpolation is equipped with drive shaft (5), fixed mounting has guiding device in feed space (2), guiding device communicates with each other with beater wheel (4) inner ring, fixed mounting has support frame (6) on quick-witted case (1) outer lower wall, fixed mounting has first universal wheel (7) on support frame (6) lower wall, fixed mounting has damping device on the quick-witted case (1) front end outer lower wall.

2. The novel fan coal mill according to claim 1, wherein the flow guiding device comprises a concave plate (8), the concave plate (8) is fixedly installed in the feeding chamber (2), the concave plate (8) is communicated with the inner ring of the striking wheel (4), L-shaped baffles (9) are respectively and fixedly installed on two sides of the concave plate (8), and the L-shaped baffles (9) are both communicated with the inner cavity of the striking wheel (4).

3. The novel fan coal mill as claimed in claim 2, wherein the cross sections of the concave plate (8) and the L-shaped baffle (9) are in a stepped structure.

4. The novel fan coal mill according to claim 2, characterized in that the angle of inclination between the front ends of the concave plate (8) and the L-shaped baffle plate (9) and the lower wall surface of the feed chamber (2) is 30-40 degrees.

5. The novel fan coal mill according to claim 1, wherein the damping device comprises a pair of mounting seats (10) with the same structure, the pair of mounting seats (10) are fixedly mounted on the outer lower wall surface of the front end of the case (1), an inner cavity is arranged in the pair of mounting seats (10), a sliding groove (12) is formed in the side wall surface of the inner cavity (11), a sliding block (13) is slidably mounted in the sliding groove (12), a lifting rod (14) is fixedly connected to the sliding block (13), one end of the lifting rod (14) penetrates through the inner cavity, a damping spring (15) is fixedly connected between the other end of the lifting rod (14) and the upper wall surface of the inner cavity (11), and a second universal wheel (16) is fixedly mounted on the penetrating end of the lifting rod (14).

6. The novel fan coal mill as claimed in claim 1, wherein an anti-abrasion front plate (17) and an anti-abrasion rear plate (18) are fixedly installed in the front-end inner chamber of the casing (1), and the anti-abrasion front plate (17) and the anti-abrasion rear plate (18) are respectively in contact with a front disk and a rear disk of the beater wheel (4).

7. The novel fan coal mill according to claim 1, characterized in that anti-grinding discs (19) are fixedly arranged on the inner wall surface of the rear disc of the striking wheel (4) at two sides of the driving shaft (5).

8. The novel fan coal mill according to claim 7, characterized in that the antifriction disc (19) is connected with the rear disc of the beater wheel (4) by means of bolts (20).