CN214916595U - Coal pulverizer for power station - Google Patents

Abstract

The utility model provides a coal pulverizer that power station was used, including making an uproar the shell of falling, first grinding mechanism and second grinding mechanism, the inner wall of falling the shell of making an uproar is equipped with the sieve, the surface of sieve is equipped with a plurality of sieve mesh, first grinding mechanism is including first grinding cabin and first pivot, the surface of first pivot is equipped with the roller, the one end of first pivot is equipped with the motor, the other end of first pivot is equipped with first drive wheel, the surface of roller is equipped with four grinding assembly, second grinding mechanism is including second grinding cabin and two second pivots, the surface of second pivot is equipped with the gear, two gear engagement connect, the one end of second pivot is equipped with the second drive wheel, the surface of second pivot is equipped with the grinding roller, the surface of grinding roller is equipped with a plurality of grinding block. The utility model discloses a better grinding effect to can grind in grades, guarantee the comprehensive quality of coal, ensure that the effectual burning of buggy after the processing can be abundant, improved the practicality of device.

Description

Coal pulverizer for power station

Technical Field

The utility model relates to a technical field of coal pulverizer specifically is a coal pulverizer that power station was used.

Background

Coal mills are machines for breaking up and grinding coal briquettes into coal dust, which are important auxiliary equipment for coal dust furnaces. The grinding machine comprises a vertical type flour mill, a high-pressure suspension roller mill, a medium-speed micro-powder mill, an overpressure trapezoidal mill, a Raymond mill and the like. The boiler is the indispensable equipment in the power plant, and current boiler generally burns coal in the combustion process, because bold coal is little with air area of contact, the insufficient waste that leads to coal of burning just so need smash with the improvement combustion efficiency to coal, then the coal pulverizer takes place in charge of.

For example, the utility model of CN202020614817.9, which comprises a bottom plate, a bracket, a grinding cylinder, a grinding mechanism, a blanking hopper, a blanking mechanism, a discharging hopper, a discharging mechanism, a linkage mechanism, a support, a transportation channel and a sieve plate; the two brackets are fixedly connected to the two ends of the bottom plate along the vertical direction; the grinding cylinder is fixedly connected between the two brackets and is far away from the top of the bottom plate; the feeding hopper for feeding is fixedly connected to the top of the grinding cylinder and is communicated with the inside of the grinding cylinder; the discharge hopper for discharging is fixedly connected to the bottom end of the grinding cylinder and communicated with the inside of the grinding cylinder; the sieve plate is fixedly connected to the inner top of the discharge hopper; the support is fixedly connected to the top of the bottom plate and is positioned between the two brackets; the transportation channel is fixedly connected to the top of the support and used for transporting pulverized coal; the discharging mechanism is fixedly connected to the top of the grinding cylinder and used for opening or closing the discharging hopper; the discharging mechanism is fixedly connected to the side part of the discharging hopper and is used for opening or closing the discharging hopper; the linkage mechanism is fixedly connected between the discharging mechanism and the blanking mechanism, and the discharging mechanism is in transmission connection with the blanking mechanism through the linkage mechanism; grind mechanism rigid coupling in the grinding vessel for grind the coal-fired, this patent is though can normal use, but the effect of grinding is relatively poor to can not grind in grades, reduced the comprehensive quality of going out the coal, the buggy after the simultaneous processing can not effectual burning abundant, has reduced the practicality of device.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a coal pulverizer that power station was used for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a coal mill for a power station comprises a noise reduction shell, a first grinding mechanism and a second grinding mechanism, wherein a sieve plate is arranged on the inner wall of the noise reduction shell, and a plurality of sieve holes are formed in the surface of the sieve plate;

the first grinding mechanism comprises a first grinding cabin and a first rotating shaft, a roller shaft is arranged on the surface of the first rotating shaft, a motor is arranged at one end of the first rotating shaft, a first driving wheel is arranged at the other end of the first rotating shaft, and four grinding assemblies are arranged on the surface of the roller shaft;

the second grinding mechanism comprises a second grinding cabin and two second rotating shafts, gears are arranged on the surfaces of the second rotating shafts and are in meshed connection, a second driving wheel is arranged at one end of each second rotating shaft, a grinding roller is arranged on the surface of each second rotating shaft, and a plurality of grinding blocks are arranged on the surface of the grinding roller.

Preferably, the first transmission wheel is in transmission connection with the second transmission wheel through a transmission belt. In the preferred embodiment, the function of uniform transmission connection between the first transmission wheel and the second transmission wheel can be realized through the transmission belt.

Preferably, the inner walls of the first grinding chamber and the second grinding chamber are provided with a plurality of auxiliary blocks. In the preferred embodiment, the auxiliary grinding function of the material can be realized through the auxiliary block.

Preferably, grinding unit is including the hinge, the hinge is connected with the roller through the installation piece, one side of hinge is equipped with the stopper, the both sides of stopper are equipped with a plurality of collision piece. In this preferred embodiment, through hinge, installation piece, stopper and impact piece, can realize carrying out the effect that the primary collision ground to the material.

Preferably, the bottoms of the first grinding chamber and the second grinding chamber are provided with electronic valves. In the preferred embodiment, the function of controlling the automatic material delivery can be realized through an electronic valve.

Preferably, one side of the noise reduction shell is provided with a control panel, and the control panel is electrically connected with the motor and the electronic valve through a lead. In the preferred embodiment, the control panel can control the operation of the whole device.

Preferably, the bottom of the noise reduction shell is provided with a vibration reduction bracket. In the preferred embodiment, the damping mount provides an external damping effect during operation of the device.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a shell of making an uproar, first grinding mechanism, second grinding mechanism, sieve mesh, first grinding cabin, first pivot, roller, motor, first drive wheel, grinding assembly, second grinding cabin, second pivot, gear, second drive wheel and the piece of milling have been realized better grinding effect to can grind in grades, guaranteed the comprehensive quality of coal, it can effectual burning abundant to have ensured the buggy after the processing, has improved the practicality of device.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is an isometric view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the overall structure of the present invention;

fig. 3 is a schematic view of the overall structure of the present invention;

fig. 4 is a schematic view of the region a of fig. 2 according to the present invention;

fig. 5 is a schematic diagram of the area B of fig. 2 according to the present invention.

In the figure: 1. a noise reducing housing; 11. a sieve plate; 110. screening holes; 2. a first grinding mechanism; 20. a first grinding chamber; 200. a transmission belt; 21. a first rotating shaft; 22. a roll shaft; 23. a grinding assembly; 231. a hinge; 232. mounting blocks; 233. a limiting block; 234. a collision mass; 24. a first drive pulley; 3. a second grinding mechanism; 30. a second grinding chamber; 300. an auxiliary block; 31. a second rotating shaft; 310. a gear; 32. grinding the roller; 33. grinding the blocks; 34. a second transmission wheel; 4. a motor; 5. an electronic valve; 6. a control panel; 7. and a vibration reduction bracket.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, referring to fig. 1-5, a coal pulverizer for a power station includes a noise reduction housing 1, a first grinding mechanism 2 and a second grinding mechanism 3, wherein a sieve plate 11 is disposed on an inner wall of the noise reduction housing 1 and connected by bolts, a plurality of sieve holes 110 are disposed on a surface of the sieve plate 11, the first grinding mechanism 2 includes a first grinding chamber 20 and a first rotating shaft 21, a roller shaft 22 is disposed on a surface of the first rotating shaft 21 and connected by bolts, a motor 4 is disposed at one end of the first rotating shaft 21, a first transmission wheel 24 is disposed at the other end of the first rotating shaft 21 and connected by bolts, four grinding assemblies 23 are disposed on a surface of the roller shaft 22, the second grinding mechanism 3 includes a second grinding chamber 30 and two second rotating shafts 31, a gear 310 is disposed on a surface of the second rotating shaft 31, the two gears 310 are engaged and connected, a second transmission wheel 34 is disposed at one end of the second rotating shaft 31, through bolted connection, the surface of second pivot 31 is equipped with the grinding roller 32, the surface of grinding roller 32 is equipped with a plurality of grinding piece 33, first drive wheel 24 is connected with the transmission of second drive wheel 34 through drive belt 200, can realize that first drive wheel 24 and second drive wheel 34 carry out the effect of at the uniform velocity transmission connection.

In the embodiment, referring to fig. 1-5, a plurality of auxiliary blocks 300 are disposed on the inner walls of the first grinding chamber 20 and the second grinding chamber 30, and the auxiliary blocks 300 can help grind the material, the grinding assembly 23 includes a hinge 231, the hinge 231 is connected to the roller shaft 22 through a mounting block 232 and is connected to the roller shaft through a bolt, a limiting block 233 is disposed on one side of the hinge 231, a plurality of collision blocks 234 are disposed on two sides of the limiting block 233, and the hinge 231, the mounting block 232, the limiting block 233 and the collision blocks 234 can help to realize the effect of primary grinding collision to the material, electronic valves 5 are disposed at the bottoms of the first grinding chamber 20 and the second grinding chamber 30, and can realize the effect of controlling the material to be automatically sent out through the electronic valves 5, a control panel 6 (model ND-031) is disposed on one side of the noise reduction housing 1 and is connected to the noise reduction housing through a bolt, control panel 6 is electric connection through wire and motor 4 (model DSD-37RS520) and electronic valve 5, through control panel 6, can realize carrying out the effect of controlling to the whole device operation, the bottom of making an uproar shell 1 falls is equipped with damping support 7, through bolted connection, through damping support 7, can realize the effect of the outside damping during device operation.

The utility model discloses a concrete operation as follows:

firstly, a user sets the operation efficiency of the device through the control panel 6, then the user puts the coal to be milled into the device through the feeding port at the top of the noise reduction shell 1, then the material falls on the surface of the screen plate 11 which is obliquely arranged, the finer material is directly sent into the second milling chamber 30 through the screen hole 110 for milling, meanwhile, the larger material slides into the first milling chamber 20, at the same time, the motor 4 drives the first rotating shaft 21, the roller shaft 22 and the milling component 23 to rotate, the larger material is milled by matching with the auxiliary block 300, then the electronic valve 5 at the bottom of the first milling chamber 20 is opened, then the material falls into the second milling chamber 30, at the same time, the first rotating shaft 21 drives the first driving wheel 24 to rotate, the first driving wheel 24 drives the second driving wheel 34 to rotate through the driving belt 200, the second driving wheel 34 drives the second rotating shaft 31, the milling roller 32 and the milling block 33 to rotate, meanwhile, the two second rotating shafts 31 drive the two gears 310 to rotate in a meshed mode, fine materials are ground sufficiently and uniformly through the grinding rollers 32 and the grinding blocks 33, finally the electronic valve 5 at the bottom of the second grinding chamber 30 is opened, and then the materials are sent out.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims (7)

1. A coal mill for a power station comprises a noise reduction shell (1), a first grinding mechanism (2) and a second grinding mechanism (3), and is characterized in that a sieve plate (11) is arranged on the inner wall of the noise reduction shell (1), and a plurality of sieve holes (110) are formed in the surface of the sieve plate (11);

the first grinding mechanism (2) comprises a first grinding cabin (20) and a first rotating shaft (21), a roller shaft (22) is arranged on the surface of the first rotating shaft (21), a motor (4) is arranged at one end of the first rotating shaft (21), a first transmission wheel (24) is arranged at the other end of the first rotating shaft (21), and four grinding assemblies (23) are arranged on the surface of the roller shaft (22);

the second grinds mechanism (3) including second grinding cabin (30) and two second pivot (31), the surface of second pivot (31) is equipped with gear (310), two gear (310) meshing is connected, the one end of second pivot (31) is equipped with second drive wheel (34), the surface of second pivot (31) is equipped with grinding roller (32), the surface of grinding roller (32) is equipped with a plurality of grinding block (33).

2. The coal pulverizer for power plants according to claim 1, wherein the first drive wheel (24) is drivingly connected to the second drive wheel (34) by a drive belt (200).

3. The coal mill for a power plant according to claim 1, characterized in that the inner walls of the first (20) and second (30) grinding chambers are provided with a number of auxiliary blocks (300).

4. The coal mill for the power station as claimed in claim 1, characterized in that the grinding unit (23) comprises a hinge (231), the hinge (231) is connected with the roll shaft (22) through a mounting block (232), a limit block (233) is arranged on one side of the hinge (231), and a plurality of collision blocks (234) are arranged on two sides of the limit block (233).

5. The coal mill for a power plant according to claim 1, characterized in that the bottoms of the first (20) and second (30) grinding chambers are provided with electrovalves (5).

6. The coal mill for the power station as claimed in claim 1, characterized in that a control panel (6) is arranged on one side of the noise reduction housing (1), and the control panel (6) is electrically connected with the motor (4) and the electronic valve (5) through wires.

7. Coal mill for power stations according to claim 1, characterized in that the bottom of the noise reducing housing (1) is provided with damping brackets (7).

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