CN219264346U

CN219264346U - Power plant boiler is with coal conveying mechanism and coal pulverizer

Info

Publication number: CN219264346U
Application number: CN202223161141.0U
Authority: CN
Inventors: 许大海; 朱大立; 高宝平
Original assignee: Hulunbeier Antai Thermal Power Co ltd Manzhouli Thermal Power Plant
Current assignee: Hulunbeier Antai Thermal Power Co ltd Manzhouli Thermal Power Plant
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-06-27
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a coal conveying mechanism for a power plant boiler and a coal mill, which comprise a conveying assembly, wherein the conveying assembly comprises a coal storage cylinder, the lower end of the coal storage cylinder is fixedly sleeved with a coal conveying pipe, the inner wall of the coal conveying pipe is rotationally connected with an auger rod, the side surface of the coal conveying pipe is provided with a first motor, and a rotating shaft of the first motor penetrates through the coal conveying pipe and is fixedly connected with one end of the auger rod; the anti-blocking assembly comprises a stirring rod, the stirring rod is rotationally connected to the side face of the coal storage cylinder, belt pulleys are fixedly sleeved on the side face of the stirring rod and the side face of the first motor rotating shaft, and a transmission belt is arranged between the two belt pulleys. According to the coal mine conveying device, the auger rod is driven by the first motor to rotate at a constant speed to convey the coal mine into the boiler, the stirring rod is driven to rotate along with the auger rod by matching the belt pulley with the driving belt, and the coal mine in the coal storage cylinder is conveniently scattered by rotating the stirring rod, so that the possibility that the coal mine is coagulated into blocks and a discharge hole of the coal storage cylinder is reduced.

Description

Power plant boiler is with coal conveying mechanism and coal pulverizer

Technical Field

The utility model relates to the technical field of coal conveying mechanisms, in particular to a coal conveying mechanism for a power plant boiler and a coal mill.

Background

A thermal power plant is a thermal power plant for short, and is a plant for producing electric energy by using combustible materials (such as coal) as fuel. A boiler is one of the main equipments of a thermal power plant, in which a down pipe is commonly used for coal supply, and coal mines need to be crushed by a coal mill before being conveyed into the interior of the boiler.

The existing part coal conveying mechanism is obliquely arranged on the side face of the boiler to enable the coal mine to automatically slide into the boiler, however, the coal mine has certain viscosity, so that the coal mine is easy to be condensed together when being piled up, the coal conveying mechanism is easy to be blocked when the coal mine is condensed into a block, a gap remains between the crushing mechanism of the existing part coal mill and the frame, and therefore part of coal mine is easy to be discharged from the gap directly without being crushed, and the crushing effect of the coal mine is poor.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

The present utility model has been made in view of the problem that the coal mine has tackiness in the above or the prior art, so that the coal mine is easily stuck into pieces, thereby causing the coal mine to be easily blocked when being transported.

Therefore, the utility model aims to provide a coal conveying mechanism for a power plant boiler.

In order to solve the technical problems, the utility model provides the following technical scheme: a coal conveying mechanism for a power plant boiler, which comprises,

the conveying assembly comprises a coal storage cylinder, a coal conveying pipe is fixedly sleeved at the lower end of the coal storage cylinder, an auger rod is rotatably connected to the inner wall of the coal conveying pipe, a first motor is arranged on the side face of the coal conveying pipe, and a rotating shaft of the first motor penetrates through the coal conveying pipe and is fixedly connected with one end of the auger rod;

the anti-blocking assembly comprises stirring rods arranged on the side surfaces of the coal storage cylinder, belt pulleys are fixedly sleeved on the side surfaces of the stirring rods and the side surfaces of the first motor rotating shaft, a transmission belt is arranged between the two belt pulleys, and the anti-blocking assembly is arranged on the side surface of the conveying assembly.

As a preferable scheme of the coal conveying mechanism for the power plant boiler, the utility model comprises the following steps: the coal conveying pipe is obliquely arranged at the lower side of the coal storage cylinder, and the coal storage cylinder is in a round table shape.

As a preferable scheme of the coal conveying mechanism for the power plant boiler, the utility model comprises the following steps: the side face of the first motor is fixedly connected with two connecting rods, and the two connecting rods are fixedly connected with the side face of the coal conveying pipe.

As a preferable scheme of the coal conveying mechanism for the power plant boiler, the utility model comprises the following steps: the stirring rod consists of a plurality of round rods and a rotating rod, wherein the round rods are distributed on the side face of the rotating rod in a straight line at equal distance, and the round rods are arranged in the coal storage cylinder.

The coal conveying mechanism for the power plant boiler has the beneficial effects that: according to the coal mine conveying device, the auger rod is driven by the first motor to rotate at a constant speed to convey the coal mine into the boiler, the stirring rod is driven to rotate along with the auger rod by matching the belt pulley with the driving belt, and the coal mine in the coal storage cylinder is conveniently scattered by rotating the stirring rod, so that the possibility that the coal mine is coagulated into blocks and a discharge hole of the coal storage cylinder is reduced.

In view of the fact that in the practical use process, the problem that part of coal mines are easy to be discharged from gaps directly without being crushed during crushing exists, and therefore the crushing effect of the coal mines is easy to be affected.

In order to solve the technical problems, the utility model also provides the following technical scheme: the utility model provides a coal pulverizer includes broken subassembly, includes broken case, the feed inlet has been seted up to the top surface of broken case, the inner wall of broken case rotates and is connected with two crushing rollers, two the crushing roller meshes mutually, the side of broken case is provided with the second motor, the axis of rotation of second motor runs through broken case and with the side fixed connection of crushing roller, the fixed bottom surface of pegging graft at broken case of coal storage section of thick bamboo, broken subassembly is in conveying assembly's upside.

As a preferred embodiment of the coal mill according to the utility model, the following applies: the left side and the right side of the inner wall of the crushing box are obliquely provided with guide plates, and the right side of the guide plates is arranged on the lower side of the feed inlet.

As a preferred embodiment of the coal mill according to the utility model, the following applies: the left side and the right side of the inner wall of the crushing box are fixedly connected with material baffle plates, and the top surface of the material baffle plates is fixedly connected with the bottom surface of the material guide plate.

As a preferred embodiment of the coal mill according to the utility model, the following applies: the inner side of the baffle plate is arc-shaped, and the inner side of the baffle plate is in sliding connection with the side surface of the crushing roller.

As a preferred embodiment of the coal mill according to the utility model, the following applies: the edges at the left end and the right end of the bottom surface of the inner wall of the crushing box are rounded.

As a preferred embodiment of the coal mill according to the utility model, the following applies: the crushing box comprises a box body and four supporting legs, and the four supporting legs are distributed on the bottom surface of the crushing box in a rectangular shape.

The coal mill has the beneficial effects that: according to the utility model, the coal mine is conveniently put into the crushing box through the feed inlet, the coal mine falling into the crushing box is conveniently guided through the guide plate, so that the coal mine is guided between the two crushing rollers to be crushed, and the coal mine is conveniently blocked through the baffle plate, so that the possibility that the coal mine directly falls into the coal storage barrel without crushing is reduced, and the crushing effect of the coal mine is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic perspective view of a coal conveying mechanism for a power plant boiler.

Fig. 2 is a partial perspective sectional view of a coal feeder for a power plant boiler.

Fig. 3 is a schematic perspective view of a coal pulverizer.

Fig. 4 is a partial perspective sectional view of a coal pulverizer.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 3, in a first embodiment of the present utility model, a coal conveying mechanism for a power plant boiler is provided, which can achieve the effect of reducing coal mine blocking devices, and the coal conveying mechanism comprises a conveying assembly 100, which comprises a coal storage barrel 101, wherein a coal conveying pipe 102 is fixedly sleeved at the lower end of the coal storage barrel 101, and coal is conveniently supplied to the coal conveying pipe 102 through the coal storage barrel 101.

The inner wall of the coal conveying pipe 102 is rotationally connected with an auger rod 103, a first motor 104 is arranged on the side face of the coal conveying pipe 102, a rotating shaft of the first motor 104 penetrates through the coal conveying pipe 102 and is fixedly connected with one end of the auger rod 103, and the auger rod 103 is driven to rotate through the first motor 104 at a constant speed to convey a coal mine into the boiler.

The anti-blocking assembly 200 comprises a stirring rod 201, wherein the stirring rod 201 is rotationally connected to the side surface of the coal storage barrel 101, belt pulleys 202 are fixedly sleeved on the side surface of the stirring rod 201 and the side surface of a rotating shaft of the first motor 104, a transmission belt 203 is arranged between the two belt pulleys 202, the stirring rod 201 is driven to rotate along with the belt pulleys 202 and the transmission belt 203 in a matched manner, and coal mines inside the coal storage barrel 101 are conveniently broken up through rotation of the stirring rod 201; the anti-block assembly 200 is on the side of the delivery assembly 100.

In summary, coal is conveniently supplied to the coal conveying pipe 102 through the coal storage barrel 101, then the auger stem 103 is driven to rotate by the first motor 104 at a constant speed to convey the coal mine into the boiler, the stirring rod 201 is driven to rotate along with the belt pulley 202 and the transmission belt 203, and the coal mine in the coal storage barrel 101 is conveniently scattered through the rotation of the stirring rod 201.

Example 2

Referring to fig. 1 to 3, a second embodiment of the present utility model is different from the previous embodiment in that this embodiment provides further optimization of the coal conveyor mechanism for the power plant boiler, so as to facilitate uniform speed coal mine conveyance.

Specifically, the coal conveying pipe 102 is obliquely arranged at the lower side of the coal storage barrel 101, the shape of the coal storage barrel 101 is in a round table shape, the coal conveying pipe 102 is obliquely arranged to facilitate conveying a coal mine to the inside of a boiler, the coal storage barrel 101 is convenient for temporarily storing the coal mine, and the coal conveying pipe 102 is convenient for feeding.

Specifically, two connecting rods 104a are fixedly connected to the side face of the first motor 104, the two connecting rods 104a are fixedly connected to the side face of the coal conveying pipe 102, and the stability of the connection between the first connection and the coal conveying pipe 102 is conveniently increased through the cooperation of the two connecting rods 104a, so that the auger rod 103 is conveniently and stably driven to rotate through the first motor 104 and conveying a coal mine.

Specifically, the stirring rod 201 is composed of a plurality of round rods and a rotating rod, the three round rods are a group and are distributed on the side face of the rotating rod in a straight line at equal distance, the round rods are inside the coal storage cylinder 101, and the plurality of round rods are driven to rotate through the rotating rod so as to break up coal mines stacked at the bottom of the coal storage cylinder 101, so that the possibility of coal mine blocking the coal storage cylinder 101 is reduced.

In summary, the auger stem 103 is stably driven to rotate by the first motor 104, and the coal mine is conveyed to the inside of the boiler at a constant speed by the rotation of the auger stem 103, so that the possibility that a large amount of coal mine is accumulated in the boiler is reduced.

Example 3

Referring to fig. 3 to 4, in a third embodiment of the present utility model, unlike the previous embodiment, the present embodiment provides a coal pulverizer, which solves the problem that a part of coal mine is easily discharged directly from a gap without being crushed during crushing, thereby easily affecting crushing effect of the coal mine, and includes a crushing assembly 300 including a crushing tank 301, a top surface of the crushing tank 301 is provided with a feed inlet 302, and the coal mine is conveniently thrown into the inside of the crushing tank 301 through the feed inlet 302; the inner wall of the crushing box 301 is rotatably connected with two crushing rollers 303, the two crushing rollers 303 are meshed, and when the two crushing rollers 303 are meshed, the single crushing roller 303 is caused to rotate, and the other crushing roller 303 rotates together with the single crushing roller 303.

The side surface of the crushing box 301 is provided with a second motor 304, and a rotating shaft of the second motor 304 penetrates through the crushing box 301 and is fixedly connected with the side surface of the crushing roller 303, so that the crushing roller 303 is conveniently driven to rotate to crush the coal mine through the second motor 304; the coal storage cylinder 101 is fixedly inserted into the bottom surface of the crushing box 301, and crushed coal mines are conveniently collected through the coal storage cylinder 101; the crushing assembly 300 is on the upper side of the conveying assembly 100.

Specifically, the left side and the right side of the inner wall of the crushing box 301 are both obliquely provided with guide plates 301a, the right side guide plates 301a are arranged on the lower side of the feed inlet 302, and the guide plates 301a are used for guiding the coal mine falling into the crushing box 301 conveniently, so that the coal mine is guided to the position between the two crushing rollers 303 for crushing.

Specifically, the left and right sides of the inner wall of the crushing box 301 are fixedly connected with a baffle plate 301b, the top surface of the baffle plate 301b is fixedly connected with the bottom surface of the material guiding plate 301a, and the coal mine is conveniently blocked through the baffle plate 301b, so that the possibility that the coal mine directly falls into the coal storage barrel 101 without being crushed is reduced.

Specifically, the inner side of the baffle plate 301b is arc-shaped, the inner side of the baffle plate 301b is slidably connected with the side surface of the crushing roller 303, and the coal mine is conveniently blocked by the sliding connection between the inner side of the baffle plate 301b and the side surface of the crushing roller 303, so that the coal mine falling into the crushing box 301 is crushed completely.

Specifically, the edges at the left and right ends of the bottom surface of the inner wall of the crushing box 301 are rounded, and the coal mine piled at the bottom of the crushing box 301 is guided by the rounded edges, so that the coal mine is caused to automatically roll down into the coal storage barrel 101, and the possibility that the coal mine is continuously piled in the crushing box 301 is reduced.

Specifically, the crushing box 301 is composed of a box body and four supporting legs, the four supporting legs are distributed on the bottom surface of the crushing box 301 in a rectangular shape, and the stability of the crushing box 301 placed on the bottom surface is convenient to increase through the cooperation of the four supporting legs.

To sum up, the coal mine is conveniently put into the crushing box 301 through the feeding hole 302, the coal mine falling into the crushing box 301 is conveniently guided to the position between the two crushing rollers 303 through the guide plate 301a to be crushed, the crushing rollers 303 are conveniently driven to rotate through the second motor 304 to crush the coal mine, and the crushed coal mine falls into the coal storage barrel 101 to be stored.

It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. The utility model provides a power plant boiler is with coal conveying mechanism which characterized in that: comprising the steps of (a) a step of,

the conveying assembly (100) comprises a coal storage cylinder (101) and a coal conveying pipe (102) arranged at the lower end of the coal storage cylinder (101), wherein an auger rod (103) is rotatably connected to the inner wall of the coal conveying pipe (102), a first motor (104) is arranged on the side face of the coal conveying pipe (102), and a rotating shaft of the first motor (104) penetrates through the coal conveying pipe (102) and is fixedly connected with one end of the auger Long Gan (103);

anti-blocking assembly (200), including set up in puddler (201) of coal storage section of thick bamboo (101) side, all fixed sleeve joint belt pulley (202) of side of puddler (201) and the side of first motor (104) axis of rotation, two be provided with driving belt (203) between belt pulley (202).

2. The power plant boiler coal conveying mechanism according to claim 1, wherein: the coal conveying pipe (102) is obliquely arranged at the lower side of the coal storage cylinder (101), and the coal storage cylinder (101) is in a round table shape.

3. The coal conveying mechanism for a power plant boiler according to claim 1 or 2, wherein: the side face of the first motor (104) is fixedly connected with two connecting rods (104 a), and the two connecting rods (104 a) are fixedly connected with the side face of the coal conveying pipe (102).

4. A power plant boiler coal handling mechanism according to claim 3, wherein: the stirring rod (201) consists of a plurality of round rods and a rotating rod, wherein the round rods are distributed on the side face of the rotating rod in a straight line at equal distance, and the round rods are arranged in the coal storage cylinder (101).

5. A coal pulverizer, its characterized in that: comprising a coal conveying mechanism for a power plant boiler according to any one of claims 1 to 4, and,

crushing subassembly (300), including set up in crushing case (301) of coal storage section of thick bamboo (101) upside, feed inlet (302) have been seted up to the top surface of crushing case (301), the inner wall rotation of crushing case (301) is connected with two crushing rollers (303), two crushing rollers (303) mesh mutually, the side of crushing case (301) is provided with second motor (304), the axis of rotation of second motor (304) runs through crushing case (301) and with the side fixed connection of crushing roller (303).

6. The coal pulverizer of claim 5, wherein: the left side and the right side of the inner wall of the crushing box (301) are obliquely provided with guide plates (301 a), and the right side of the guide plates (301 a) is arranged on the lower side of the feed inlet (302).

7. The coal pulverizer of claim 5 or 6, wherein: the left side and the right side of the inner wall of the crushing box (301) are fixedly connected with a striker plate (301 b), and the top surface of the striker plate (301 b) is fixedly connected with the bottom surface of the guide plate (301 a).

8. The coal pulverizer of claim 7, wherein: the inner side of the baffle plate (301 b) is arc-shaped, and the inner side of the baffle plate (301 b) is in sliding connection with the side surface of the crushing roller (303).

9. The coal pulverizer of claim 8, wherein: the edges at the left and right ends of the bottom surface of the inner wall of the crushing box (301) are rounded.

10. The coal pulverizer of claim 9, wherein: the crushing box (301) consists of a box body and four supporting legs, wherein the four supporting legs are distributed on the bottom surface of the crushing box (301) in a rectangular shape.