CN113019572A - Coal breaker for thermal power plant - Google Patents
Coal breaker for thermal power plant Download PDFInfo
- Publication number
- CN113019572A CN113019572A CN202110247057.1A CN202110247057A CN113019572A CN 113019572 A CN113019572 A CN 113019572A CN 202110247057 A CN202110247057 A CN 202110247057A CN 113019572 A CN113019572 A CN 113019572A
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- Prior art keywords
- thermal power
- coal
- power plant
- rotating shaft
- filter plate
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- 239000003245 coal Substances 0.000 title claims abstract description 97
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 19
- 239000000843 powder Substances 0.000 abstract description 18
- 238000010248 power generation Methods 0.000 abstract description 7
- 239000004484 Briquette Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000010298 pulverizing process Methods 0.000 description 8
- 241000251131 Sphyrna Species 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
- B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
- B02C13/284—Built-in screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
- B02C2013/28618—Feeding means
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention provides a coal crusher for a thermal power plant, and relates to the technical field of thermal power generation. A coal breaker for a thermal power plant comprises a fixed frame, wherein the fixed frame is provided with a feeding cylinder and a crushing cylinder, and the feeding cylinder is communicated with the crushing cylinder; the crushing barrel is rotatably provided with a rotating shaft, and the outer side wall of the rotating shaft is provided with a plurality of hammers; the fixing frame is provided with a driving motor used for driving the rotating shaft to rotate, and the driving motor is in transmission connection with the rotating shaft. By adopting the coal crusher, the coal briquette can be crushed into the coal powder by the coal crusher, so that the crushed coal powder is conveniently put into a combustion device of a thermal power plant for combustion, and the combustion efficiency of the coal powder is improved.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a coal breaker for a thermal power plant.
Background
Coal is a solid combustible mineral formed gradually by ancient plants buried underground and undergoing complex biochemical and physicochemical changes. Coal is known as black gold by people and is industrial food, which is one of main energy sources used in the human world since the eighteenth century, and since the twenty-first century, although the value of coal is not as high as before, coal is one of indispensable energy sources for production and life of people at present and in a long time in the future after all, the supply of coal is also related to the stability of the development of the industry of China and the aspect of the whole society, and the problem of the supply safety of coal is also the most important part in the energy safety of China, especially in the field of thermal power generation.
Thermal power generation is a power generation mode which utilizes heat energy generated by combustible materials during combustion and converts the heat energy into electric energy through a power generation power device, Chinese coal resources are rich, a large amount of coal is mined every year, therefore, the thermal power generation still has great potential, large thermal power plants burn pulverized coal for improving coal burning efficiency, however, mined coal blocks are large and cannot be directly combusted, and the coal blocks are crushed to certain fineness and then can be put into combustion equipment for combustion, so that a coal crusher for the thermal power plant is urgently needed to crush the coal blocks.
Disclosure of Invention
The invention aims to provide a coal breaker for a thermal power plant, which can break coal blocks into coal powder, so that the broken coal powder can be conveniently put into a combustion device of a thermal power plant for combustion, and the combustion efficiency of the coal powder is improved.
The embodiment of the invention is realized by the following steps:
the embodiment of the application provides a coal breaker for a thermal power plant, which comprises a fixed frame, wherein the fixed frame is provided with a feeding cylinder and a crushing cylinder, and the feeding cylinder is communicated with the crushing cylinder; the crushing barrel is rotatably provided with a rotating shaft, and the outer side wall of the rotating shaft is provided with a plurality of hammers; the fixing frame is provided with a driving motor used for driving the rotating shaft to rotate, and the driving motor is in transmission connection with the rotating shaft.
Further, in some embodiments of the present invention, a discharge hole is formed at a bottom of a sidewall of the pulverizing cylinder, the pulverizing cylinder is provided with a filter plate for shielding the discharge hole, the filter plate is connected to the pulverizing cylinder, and the filter plate is provided with a plurality of filter holes.
Further, in some embodiments of the present invention, a mounting plate is disposed below the filter plate, and a plurality of thimbles corresponding to the positions of the filter holes are disposed on an upper side wall of the mounting plate; the fixing frame is provided with a telescopic push rod used for driving the mounting plate to vertically move, and the telescopic push rod is connected with the mounting plate.
Further, in some embodiments of the present invention, the side wall of the mounting plate is provided with a plurality of discharge holes.
Further, in some embodiments of the present invention, any one of the hammer heads is detachably connected to the rotating shaft.
Further, in some embodiments of the present invention, the hammer further includes a fastener, one end of any one of the hammers close to the rotating shaft is provided with a mounting block, and the mounting block is provided with a first mounting hole; the outer side wall of the rotating shaft is fixedly sleeved with a mounting sleeve, and the mounting sleeve is provided with a second mounting hole; one end of the fastener penetrates through the first mounting hole and is matched with the second mounting hole.
Further, in some embodiments of the present invention, the sidewall of the crushing cylinder is provided with an access opening and a baffle for shielding the access opening, one end of the baffle is rotatably connected to the crushing cylinder, and the other end of the baffle is a free end.
Further, in some embodiments of the present invention, the above-mentioned device further comprises a latch, a free end of the above-mentioned baffle is provided with a first locking block, and the above-mentioned first locking block is provided with a first locking hole; the crushing cylinder is provided with an installation rod, the installation rod is provided with a second locking block, and the second locking block is provided with a second locking hole; the latch pins are inserted through the first locking holes and the second locking holes, respectively.
Further, in some embodiments of the present invention, a coarse filter plate is obliquely disposed on an inner sidewall of the feeding cylinder, and a plurality of coarse filter holes are disposed on a sidewall of the coarse filter plate; a second guide plate is arranged below the coarse filter plate, one end of the second guide plate is connected with the inner side wall of the feeding cylinder, the other end of the second guide plate is connected with the coarse filter plate, and a coarse material cavity communicated with the coarse filter hole is formed between the coarse filter plate and the second guide plate; the side wall of the feeding cylinder is provided with a coarse material port which is communicated with the coarse material cavity and the outer space of the feeding cylinder.
Further, in some embodiments of the present invention, the inner sidewall of the feeding cylinder is obliquely provided with a first guide plate, and the first guide plate is disposed above the coarse filter plate.
Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:
the embodiment of the invention provides a coal breaker for a thermal power plant, which comprises a fixed frame, wherein the fixed frame is provided with a feeding cylinder and a crushing cylinder, and the feeding cylinder is communicated with the crushing cylinder; the crushing barrel is rotatably provided with a rotating shaft, and the outer side wall of the rotating shaft is provided with a plurality of hammers; the fixing frame is provided with a driving motor used for driving the rotating shaft to rotate, and the driving motor is in transmission connection with the rotating shaft.
When the hammer is actually used, the rotating shaft is driven by the driving motor, and the rotating shaft drives the hammer head to rotate at a high speed; the coal blocks are placed into the feeding cylinder, the coal blocks fall into the crushing cylinder from the feeding cylinder, and the coal blocks are impacted by the hammer heads rotating at a high speed, so that the coal blocks are crushed into coal powder under stress, the crushed coal powder is conveniently placed into a combustion device of a thermal power plant for combustion, and the combustion efficiency of the coal powder is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a coal pulverizer provided by an embodiment of the present invention;
FIG. 2 is a rear view of a coal pulverizer provided by an embodiment of the present invention;
FIG. 3 is a schematic structural view of the interior of a milling drum according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a spindle and a hammer head according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a hammer head according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a filter plate and a mounting plate according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a baffle according to an embodiment of the present invention;
fig. 8 is a partial cross-sectional view of a feeder cylinder provided in accordance with an embodiment of the present invention.
Icon: 1-a fixed mount; 2-a feeding cylinder; 3-a crushing cylinder; 4-a rotating shaft; 5-a hammer head; 6-driving a motor; 7-a filter plate; 8-filtration pore; 9-a thimble; 10-mounting a plate; 11-a telescopic push rod; 12-a discharge hole; 13-a mounting block; 14-a fastener; 15-mounting the sleeve; 16-a first mounting hole; 17-a baffle; 18-a latch; 19-mounting a rod; 20-a first locking block; 21-a second locking block; 22-a first guide plate; 23-coarse filter plate; 24-coarse filtration pore; 25-a coarse material port; 26-a second guide plate; 27-coarse material cavity; 28-a receiving hopper; 29-vibration motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of describing the present invention and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. Such as "horizontal" simply means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1 to 8, fig. 1 is a schematic structural diagram of a coal pulverizer provided by an embodiment of the present invention; FIG. 2 illustrates a rear view of a coal pulverizer provided by an embodiment of the present invention; FIG. 3 is a schematic view of the structure inside the milling drum 3 according to the embodiment of the present invention; fig. 4 is a schematic structural diagram of the spindle 4 and the hammer 5 according to the embodiment of the present invention; fig. 5 is a schematic structural diagram of a hammer head 5 according to an embodiment of the present invention; fig. 6 is a schematic structural diagram of a filter plate 7 and a mounting plate 10 according to an embodiment of the present invention; fig. 7 is a schematic structural diagram of a baffle 17 according to an embodiment of the present invention; fig. 8 is a partial sectional view of the feeder 2 according to the embodiment of the present invention.
The embodiment provides a coal crusher for a thermal power plant, which comprises a fixed frame 1, wherein the fixed frame 1 is provided with a feeding cylinder 2 and a crushing cylinder 3, and the feeding cylinder 2 is communicated with the crushing cylinder 3; the crushing cylinder 3 is rotatably provided with a rotating shaft 4, and the outer side wall of the rotating shaft 4 is provided with a plurality of hammers 5; the fixing frame 1 is provided with a driving motor 6 for driving the rotating shaft 4 to rotate, and the driving motor 6 is in transmission connection with the rotating shaft 4.
When the hammer is actually used, the rotating shaft 4 is driven by the driving motor 6, and the rotating shaft 4 drives the hammer 5 to rotate at a high speed; the coal blocks are placed into the feeding cylinder 2, the coal blocks fall into the crushing cylinder 3 from the feeding cylinder 2, and the coal blocks are impacted by the hammer 5 rotating at a high speed, so that the coal blocks are crushed into coal powder under stress, the crushed coal powder is conveniently placed into a combustion device of a thermal power plant for combustion, and the combustion efficiency of the coal powder is improved.
Optionally, the transmission shaft of the driving motor 6 and the rotating shaft 4 of the present embodiment are both provided with a belt pulley, and the driving motor 6 and the rotating shaft 4 are connected through a belt transmission. The rotating shaft 4 is horizontally arranged, the hammer 5 is in a cuboid shape, and the hammer 5 is perpendicular to the axis of the rotating shaft 4.
Optionally, the size of the particle size of the pulverized coal in the embodiment can be adjusted through the size of a gap between the hammer 5 and the inner side wall of the feeding cylinder 2.
As shown in fig. 1 to 8, in some embodiments of the present invention, a discharge hole is formed at a bottom of a sidewall of the pulverizing cylinder 3, the pulverizing cylinder 3 is provided with a filter plate 7 for blocking the discharge hole, the filter plate 7 is connected to the pulverizing cylinder 3, and the filter plate 7 is provided with a plurality of filter holes 8.
According to the invention, the discharge hole is formed, the crushing barrel 3 is provided with the filter plate 7 for shielding the discharge hole, the filter plate 7 is connected with the crushing barrel 3, the filter plate 7 is provided with the plurality of filter holes 8, pulverized coal with the diameter up to the standard after being crushed can be filtered out through the filter holes 8, pulverized coal with a larger diameter is remained in the crushing barrel 3 and is continuously impacted and crushed by the hammer head 5, the output quality of the pulverized coal is increased, and the pulverized coal is convenient to burn.
Optionally, the filter plate 7 of the present embodiment is detachably connected to the pulverizing barrel 3, for example, the filter plate 7 is fixed on the pulverizing barrel 3 by bolts, so that the filter plate 7 can be replaced conveniently, the filter plates 7 with the filter holes 8 of different diameters can be replaced according to different needs, and the filter plate 7 is convenient for filtering out proper pulverized coal for combustion.
As shown in fig. 1 to 8, in some embodiments of the present invention, a mounting plate 10 is disposed below the filter plate 7, and a plurality of thimbles 9 corresponding to the positions of the filter holes 8 are disposed on an upper side wall of the mounting plate 10; the fixing frame 1 is provided with a telescopic push rod 11 for driving the mounting plate 10 to vertically move, and the telescopic push rod 11 is connected with the mounting plate 10.
As the coal block is impacted by the hammer 5 at high speed in the crushing barrel 3, a part of coal powder with larger diameter can be embedded into the filtering holes 8 to block the filtering holes 8, so that the coal powder is influenced to be filtered out from the filtering holes 8. The invention is provided with a mounting plate 10, and the upper side wall of the mounting plate 10 is provided with a plurality of thimbles 9 corresponding to the positions of the filter holes 8; the fixing frame 1 is provided with a telescopic push rod 11 for driving the mounting plate 10 to vertically move, and the telescopic push rod 11 is connected with the mounting plate 10.
So the flexible push rod 11 of accessible promotes mounting panel 10 at vertical direction round trip movement, makes 9 imbeds of thimble filter 8 in, will block up in filter 8 the great buggy of diameter pushes up in going into crushing cylinder 3 from filtering in hole 8, so to filter hole 8 and dredge, increase the efficiency that the buggy filtered out from filtering hole 8.
Alternatively, the telescopic rod 11 of the present embodiment may be an electric rod, which is also called a linear actuator, and is mainly a novel linear actuator composed of a motor rod and a control device, and may be considered as an extension of the rotating motor in terms of structure. The working principle is as follows: the motor drives a pair of screw rod nuts after being decelerated by a gear or a worm gear. The rotary motion of the motor is changed into linear motion, and the push rod action is completed by utilizing the positive and negative rotation of the motor. For example, the complex actions such as rotation and shaking can be completed through various levers, rocking bars or connecting rods. By varying the lever arm length, the stroke can be increased or decreased.
In some embodiments of the present invention, as shown in fig. 1-8, the side wall of the mounting plate 10 is provided with a plurality of discharge holes 12.
As the mounting plate 10 is arranged below the filter plate 7, the pulverized coal filtered from the filter plate 7 can fall on the mounting plate 10, and the side wall of the mounting plate 10 is provided with the plurality of discharge holes 12, so that the pulverized coal falling on the mounting plate 10 can fall off from the discharge holes 12, the pulverized coal is prevented from being accumulated on the mounting plate 10, and the pulverized coal is convenient to collect.
Optionally, the mounting plate 10 of this embodiment is provided with the vibration motor 29, so that the mounting plate 10 can be driven to vibrate by the rotation of the vibration motor 29, so that the pulverized coal dropped on the mounting plate 10 can be dropped by the vibration, and the accumulation of the pulverized coal is prevented. Optionally, the bottom of the fixing frame 1 of this embodiment is provided with a receiving hopper 28, the receiving hopper 28 is arranged below the discharge hole 12, and the pulverized coal falls from the discharge hole 12 and then can enter the receiving hopper 28 for collection, thereby facilitating subsequent transportation.
As shown in fig. 1 to 8, in some embodiments of the present invention, any one of the hammer heads 5 is detachably connected to the rotating shaft 4.
As the hammer 5 rotates at a high speed to crush the coal blocks into coal powder, the coal blocks rub the hammer 5 in the process of crushing the coal blocks, and the hammer 5 is abraded by striking, the hammer 5 is detachably connected with the rotating shaft 4, so that the hammer 5 is convenient to replace.
As shown in fig. 1 to 8, in some embodiments of the present invention, the hammer head further includes a fastener 14, one end of any one of the hammer heads 5 near the rotating shaft 4 is provided with a mounting block 13, and the mounting block 13 is provided with a first mounting hole 16; the outer side wall of the rotating shaft 4 is fixedly sleeved with a mounting sleeve 15, and the mounting sleeve 15 is provided with a second mounting hole; one end of the fastener 14 passes through the first mounting hole 16 and engages the second mounting hole.
According to the invention, through the arrangement of the fastening piece 14, one end of any hammer head 5, which is close to the rotating shaft 4, is provided with the mounting block 13, and the mounting block 13 is provided with the first mounting hole 16; the outer side wall of the rotating shaft 4 is fixedly sleeved with a mounting sleeve 15, and the mounting sleeve 15 is provided with a second mounting hole; one end of the fastening member 14 passes through the first mounting hole 16 and is engaged with the second mounting hole, so that the hammer 5 is mounted to the rotary shaft 4 by the fastening member 14.
Alternatively, the fastening member 14 of the present embodiment may be a bolt, and the first mounting hole 16 and the second mounting hole may be screw holes, so that the bolt is screwed into the first mounting hole 16 and the second mounting hole respectively to fix the bolt, and the hammer head 5 is also detached.
As shown in fig. 1 to 8, in some embodiments of the present invention, the sidewall of the milling drum 3 is provided with an access opening and a baffle 17 for blocking the access opening, one end of the baffle 17 is rotatably connected to the milling drum 3, and the other end of the baffle 17 is a free end.
According to the invention, the side wall of the crushing barrel 3 is provided with the access hole and the baffle 17 for shielding the access hole, one end of the baffle 17 is rotatably connected with the crushing barrel 3, and the other end of the baffle 17 is a free end, so that the baffle 17 can be conveniently rotated to open, and the inside of the crushing barrel 3 can be maintained or the parts inside the crushing barrel can be replaced from the position of the access hole.
As shown in fig. 1-8, in some embodiments of the present invention, the above-mentioned further comprises a latch 18, a free end of the above-mentioned baffle 17 is provided with a first locking block 20, and the above-mentioned first locking block 20 is provided with a first locking hole; the crushing cylinder 3 is provided with an installation rod 19, the installation rod 19 is provided with a second locking block 21, and the second locking block 21 is provided with a second locking hole; the latch pin 18 passes through the first locking hole and the second locking hole, respectively.
According to the invention, through arranging the bolt 18, the free end of the baffle 17 is provided with the first locking block 20, and the first locking block 20 is provided with the first locking hole; the crushing cylinder 3 is provided with an installation rod 19, the installation rod 19 is provided with a second locking block 21, and the second locking block 21 is provided with a second locking hole; the latch 18 is inserted through the first locking hole and the second locking hole, respectively, so that the free end of the blocking plate 17 is fixed to the mounting rod 19 by inserting the latch 18 through the first locking hole and the second locking hole, respectively, thereby preventing the blocking plate 17 from rotating due to impact or shaking during the process of crushing the coal block.
As shown in fig. 1 to 8, in some embodiments of the present invention, the inner sidewall of the feed cylinder 2 is obliquely provided with a coarse filter plate 23, and the sidewall of the coarse filter plate 23 is provided with a plurality of coarse filter holes 24; a second guide plate 26 is provided below the coarse filter plate 23, one end of the second guide plate 26 is connected to the inner sidewall of the feed cylinder 2, the other end of the second guide plate 26 is connected to the coarse filter plate 23, and a coarse material chamber 27 communicating with the coarse filter holes 24 is formed between the coarse filter plate 23 and the second guide plate 26; the side wall of the feed cylinder 2 is provided with a coarse material port 25 for communicating the coarse material cavity 27 with the space outside the feed cylinder 2.
The invention sets a coarse filter plate 23, the side wall of the coarse filter plate 23 is provided with a plurality of coarse filter holes 24; the lower side of above-mentioned coarse filter plate 23 is equipped with second deflector 26, form the coarse fodder chamber 27 that communicates with above-mentioned coarse filtration hole 24 between coarse filter plate 23 and the above-mentioned second deflector 26, so put into the coal piece in feed cylinder 2, the less buggy of diameter can be followed coarse filtration hole 24 and filtered and get into coarse fodder chamber 27 in the coal piece, discharge feed cylinder 2 through coarse fodder mouth 25 from coarse fodder chamber 27 again, so filter out the buggy that partly diameter is up to standard in the coal piece, can reduce the volume of coal piece in the coal breaker, can accelerate the input speed of coal piece, improve crushing efficiency.
As shown in fig. 1 to 8, in some embodiments of the present invention, the inner sidewall of the feed cylinder 2 is obliquely provided with a first guide plate 22, and the first guide plate 22 is disposed above the coarse filter plate 23.
According to the invention, the first guide plate 22 is arranged, and the first guide plate 22 is arranged above the coarse filter plate 23, so that coal blocks put into the feeding cylinder 2 can slide onto the coarse filter plate 23 along the first guide plate 22, and then are filtered by the coarse filter plate 23, and the filtering efficiency is increased.
In summary, an embodiment of the present invention provides a coal crusher for a thermal power plant, including a fixing frame 1, where the fixing frame 1 is provided with a feeding cylinder 2 and a crushing cylinder 3, and the feeding cylinder 2 is communicated with the crushing cylinder 3; the crushing cylinder 3 is rotatably provided with a rotating shaft 4, and the outer side wall of the rotating shaft 4 is provided with a plurality of hammers 5; the fixing frame 1 is provided with a driving motor 6 for driving the rotating shaft 4 to rotate, and the driving motor 6 is in transmission connection with the rotating shaft 4.
When the hammer is actually used, the rotating shaft 4 is driven by the driving motor 6, and the rotating shaft 4 drives the hammer 5 to rotate at a high speed; the coal blocks are placed into the feeding cylinder 2, the coal blocks fall into the crushing cylinder 3 from the feeding cylinder 2, and the coal blocks are impacted by the hammer 5 rotating at a high speed, so that the coal blocks are crushed into coal powder under stress, the crushed coal powder is conveniently placed into a combustion device of a thermal power plant for combustion, and the combustion efficiency of the coal powder is improved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a coal breaker is used in thermal power plant which characterized in that: the device comprises a fixed frame, wherein the fixed frame is provided with a feeding cylinder and a crushing cylinder, and the feeding cylinder is communicated with the crushing cylinder; the crushing barrel is rotatably provided with a rotating shaft, and the outer side wall of the rotating shaft is provided with a plurality of hammers; the fixing frame is provided with a driving motor used for driving the rotating shaft to rotate, and the driving motor is in transmission connection with the rotating shaft.
2. The coal pulverizer for a thermal power plant according to claim 1, characterized in that: the lateral wall bottom of crushing barrel is equipped with the discharge opening, crushing barrel is equipped with and is used for sheltering from the filter plate of discharge opening, the filter plate with crushing barrel connects, the filter plate is equipped with a plurality of filtration pores.
3. The coal pulverizer for a thermal power plant of claim 2, wherein: a mounting plate is arranged below the filter plate, and a plurality of thimbles corresponding to the positions of the filter holes are arranged on the upper side wall of the mounting plate; the mount is equipped with and is used for the drive the vertical flexible push rod that removes of mounting panel, flexible push rod with the mounting panel is connected.
4. The coal pulverizer for a thermal power plant according to claim 3, characterized in that: the lateral wall of mounting panel is equipped with a plurality of relief holes.
5. The coal pulverizer for a thermal power plant according to claim 1, characterized in that: and the hammer head is detachably connected with the rotating shaft.
6. The coal pulverizer for a thermal power plant according to claim 5, wherein: the hammer head is characterized by further comprising a fastener, wherein one end of any hammer head, which is close to the rotating shaft, is provided with an installation block, and the installation block is provided with a first installation hole; the outer side wall of the rotating shaft is fixedly sleeved with a mounting sleeve, and the mounting sleeve is provided with a second mounting hole; one end of the fastener penetrates through the first mounting hole and is matched with the second mounting hole.
7. The coal pulverizer for a thermal power plant according to claim 5, wherein: the lateral wall of crushing barrel is equipped with the access hole and is used for sheltering from the baffle of access hole, the one end of baffle with crushing barrel rotates to be connected, the other end of baffle is the free end.
8. The coal pulverizer for a thermal power plant of claim 7, wherein: the free end of the baffle is provided with a first locking block, and the first locking block is provided with a first locking hole; the crushing barrel is provided with an installation rod, the installation rod is provided with a second locking block, and the second locking block is provided with a second locking hole; the bolt passes through the first locking hole and the second locking hole respectively.
9. The coal pulverizer for a thermal power plant according to claim 1, characterized in that: a coarse filter plate is obliquely arranged on the inner side wall of the feeding cylinder, and a plurality of coarse filter holes are formed in the side wall of the coarse filter plate; a second guide plate is arranged below the coarse filter plate, one end of the second guide plate is connected with the inner side wall of the feeding cylinder, the other end of the second guide plate is connected with the coarse filter plate, and a coarse material cavity communicated with the coarse filter hole is formed between the coarse filter plate and the second guide plate; and the side wall of the feeding cylinder is provided with a coarse material port which is communicated with the coarse material cavity and the external space of the feeding cylinder.
10. The coal pulverizer for a thermal power plant of claim 9, wherein: the inner side wall of the feeding cylinder is obliquely provided with a first guide plate, and the first guide plate is arranged above the coarse filter plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110247057.1A CN113019572A (en) | 2021-03-05 | 2021-03-05 | Coal breaker for thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110247057.1A CN113019572A (en) | 2021-03-05 | 2021-03-05 | Coal breaker for thermal power plant |
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| CN113019572A true CN113019572A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110247057.1A Pending CN113019572A (en) | 2021-03-05 | 2021-03-05 | Coal breaker for thermal power plant |
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Application publication date: 20210625 |