CN215140323U - Automatic integrative device of screening is smashed to coal of changing - Google Patents
Automatic integrative device of screening is smashed to coal of changing Download PDFInfo
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- CN215140323U CN215140323U CN202120770951.2U CN202120770951U CN215140323U CN 215140323 U CN215140323 U CN 215140323U CN 202120770951 U CN202120770951 U CN 202120770951U CN 215140323 U CN215140323 U CN 215140323U
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Abstract
The utility model provides an automatic integrated device for crushing and screening coal, which comprises a shell, wherein the shell is sequentially divided into a crushing section, a primary screening section, a middle screening section and a fine screening section from top to bottom along the flow direction of the coal; at least two crushing rollers are arranged in the crushing section, and crushing teeth are arranged on the peripheral surfaces of the crushing rollers; a screen drum is vertically arranged in the middle screen section and is in transmission connection with a driving motor; the fine screen section is internally provided with a multi-stage screen plate with an inverted cone structure, and the multi-stage screen plate is divided into at least three stages of coaxially arranged screen plate sections from the periphery to the center; from the outer periphery to the center direction, the mesh aperture of each grade of the sieve plate section is gradually increased; at least two annular partition plates which are nested with each other are arranged below the multistage sieve plate, and a cavity formed by the annular partition plates is butted with the sieve plate section. The utility model discloses smash coal and carried out high integration with the screening for the screening of coal granule is more accurate.
Description
Technical Field
The utility model belongs to the technical field of, especially, relate to an automatic integrative device of screening is smashed to coal of changing.
Background
Coal is fossil fuel which is most abundant in storage amount on the earth and has the widest distribution region, is known as black gold by people, is industrial food, is one of main energy sources used in the human world in the eighteenth century, and has an important position in terms of coal processing.
And only smashing coal can cause the size of the coal particles after smashing to be different, thereby greatly reducing the precision of coal smashing, influencing the coal smashing quality and being inconvenient for downstream process use. Therefore, it is necessary to screen the crushed coal and classify the crushed coal according to the particle size.
The coal screening device is a mechanical device specially used for screening coal, most of the existing coal screening devices adopt an inclined plane design of a screening sieve to complete screening and collection by depending on the gravity of the coal, the other screening devices adopt a vibrating sieve to carry out vibration screening, and the two screening modes have different defects; when the vibrating screen is used for screening coal, when the volume of the coal is too large and the quantity of the coal is too large, the vibration rolling amplitude of the coal is limited, a good screening effect cannot be achieved, the granularity of the coal is smaller and smaller after the coal is screened, coal dust is inevitably generated, the coal with small granularity is directly collected in the cavity by the conventional device, and the air pollution caused by the coal dust is possibly caused. That is, the screening effect of the existing coal screening device on coal has different defects under different scenes, which often results in that small-particle size coal which should pass through the screening holes is collected without being screened, and the existing coal screening device cannot repeatedly and circularly screen for many times, and the ash removal treatment of the small-particle size coal is not considered.
CN107597269A discloses coal is smashed and is ground screening all-in-one, comprising a base plate, the box with remove the wheelset, be provided with reducing mechanism in the box, grinder and sieving mechanism, the top of box is provided with the feed inlet, reducing mechanism is including smashing the motor, initiatively smash roller and passive crushing roller, grinder is including grinding the motor, the compression roller, grinding roller and backing roll, sieving mechanism includes the one-level screen cloth, the second grade screen cloth, tertiary screen cloth, shock motor and vibrations axle, the lower extreme department of tertiary screen cloth is provided with the feed back case, the material lifting cylinder is installed to feed back case top, the top slope of material lifting cylinder is provided with the passage, the bottommost end and the feed inlet of passage are linked together, the bottom at the bottom plate is installed to the removal wheelset.
CN207614907U discloses coal is smashed and is ground screening all-in-one, comprising a base plate, the box with remove the wheelset, be provided with reducing mechanism in the box, grinder and sieving mechanism, reducing mechanism is including smashing the motor, crushing axle, puddler and (mixing) shaft, be provided with crushing tooth on the (mixing) shaft, grinder is including grinding the motor, the compression roller, grinding roller and backing roll, sieving mechanism includes the one-level screen cloth, the second grade screen cloth, tertiary screen cloth, shock motor and vibrations axle, the lower extreme department of tertiary screen cloth is provided with the feed back case, the material lifting cylinder is installed to feed back case top, the top slope of material lifting cylinder is provided with the passage, the bottom and the feed inlet of passage are linked together, the bottom at the bottom plate is installed to the removal wheelset.
CN210058523U discloses screening device is smashed to coal in mining field, including the main casing body, supporting leg, row's material section of thick bamboo, support column, protective housing, first motor, first crushing axle, first crushing sword, second crushing axle, second crushing sword, first bevel gear, second bevel gear, feeding shell, limiting plate, filter, filtration hole, fixed column, set casing, spring, baffle, second motor, output shaft and lug.
Coal is in a large block structure during mining and needs to be crushed for reuse, and many industries have requirements on the granularity of coal during coal use, but the crushing and screening of the existing equipment on the coal are inconvenient, so that inconvenience is brought to people.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an integrative device of screening is smashed to automatic coal, smashes coal and has carried out high integration with the screening, has integrated mechanical screening, centrifugal screening and multistage screening again in the screening stage for the screening of coal granule is more accurate.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides an automatic integrative device of screening is smashed to coal of changing, integrative device of screening is smashed to coal include the casing, the casing divide into crushing section, prescreening section, well sieve section and fine screen section from top to bottom along the coal flow direction in proper order.
At least two crushing rollers are arranged in the crushing section, crushing teeth are arranged on the peripheral surfaces of the crushing rollers, and the crushing teeth on two adjacent crushing rollers are meshed with each other and used for crushing coal; a vibrating screen plate is transversely arranged in the primary screen section; a screen drum is vertically arranged in the middle screen section, the screen drum is in transmission connection with a driving motor, the driving motor drives the screen drum to rotate, coal particles primarily screened by the vibrating screen plate fall into the screen drum, and the coal particles pass through the screen drum under the action of centrifugal force and fall into the fine screening section along with the rotation of the screen drum; the fine screen section is internally provided with a multi-stage screen plate with an inverted cone structure, and the multi-stage screen plate is divided into at least three stages of coaxially arranged screen plate sections from the periphery to the center; from the outer periphery to the center direction, the mesh aperture of each grade of the sieve plate section is gradually increased; at least two annular partition plates which are nested with each other are arranged below the multistage sieve plate, a cavity formed by the annular partition plates is butted with the sieve plate sections, and the coal particles screened by the sieve plate sections fall into corresponding cavities.
The utility model provides an automatic integrative device of screening is smashed to coal of changing smashes and has carried out high integration with the screening, has integrated mechanical screening, centrifugal screening and multistage screening again in the screening stage for the screening of coal granule is more accurate. When the coal crushing and screening device is used, mechanical screening is realized through the vibrating screen plate, the crushed coal is primarily screened, and the vibration of the vibrating screen plate is utilized to improve the filtering effect of screen holes in the vibrating screen plate on coal particles and improve the coal crushing and screening precision; realize centrifugal screening through the screen cloth cylinder, after the coal granule after the primary screening gets into the screening cylinder, along with screen cloth cylinder rotation, the coal granule passes the screen cloth cylinder under the effect of centrifugal force and falls into the fine screen section and carry out multistage screening, and the coal granule of different particle diameters passes corresponding sieve paragraph and goes into in the corresponding cavity at the in-process that falls that rolls, and the layer upon layer of through mechanical screening, centrifugal screening and multistage screening is screened and is realized accurate classified screening.
It should be noted that the utility model discloses do not do specific requirement and special limitation to the back taper structure of multistage sieve, its shape structure needs carries out adaptability adjustment according to the shell shape. For example, when the shell is in a cylindrical structure, the multistage sieve plate is in an inverted conical structure correspondingly; when the shell is in a cuboid structure, correspondingly, the multistage sieve plate is in an inverted pyramid structure.
As an optimal technical scheme of the utility model, the casing top be provided with the feeder hopper, the bottom export of feeder hopper communicates with each other with the casing is inside.
The feed hopper be back taper structure.
As an optimized technical scheme, crushing section in be provided with two rows of crushing roller sets, from top to bottom record respectively as first crushing roller set and second crushing roller set.
The first crushing roller group comprises n crushing rollers which are arranged side by side in the horizontal direction, wherein n is more than or equal to 2.
The second crushing roller group comprises (n-1) crushing rollers which are arranged side by side in the horizontal direction.
The crushing rollers included in the first crushing roller group and the crushing rollers included in the second crushing roller group are distributed in a staggered mode.
As an optimal technical scheme, external draught fan on the casing of crushing section, the draught fan take out the dust that the in-process produced is smashed to coal.
As an optimal technical scheme, stiff end and vibration end are marked as respectively at the both ends of vibration sieve board, the stiff end of vibration sieve board and the shells inner wall flexonics of prescreening section, the vibration end of vibration sieve board passes the shells of prescreening section and inserts vibrating motor, vibrating motor drive vibration sieve board be small amplitude reciprocating motion on the horizontal direction.
The sieve plate has a mesh opening of 30 to 40mm, for example, 30mm, 31mm, 32mm, 33mm, 34mm, 3mm, 36mm, 37mm, 38mm, 39mm or 40mm, but is not limited to the above-mentioned values, and other values not shown in the above-mentioned range are also applicable.
As an optimal technical scheme, the stiff end of vibration sieve be T shape structure, set up the recess of opening constriction on the shells inner wall of preliminary screening section, the stiff end and the cooperation of recess joint of vibration sieve.
And a spring is arranged between the end face of the fixed end of the vibrating screen plate and the bottom surface of the groove.
The utility model discloses in, the stiff end of T shape structure mutually supports with the recess of opening constriction, can guarantee that the vibrating screen plate is difficult for breaking away from the casing, and the stiff end that also can guarantee the vibrating screen plate level rocks in the finite space of recess, sets up the aim at of spring, cushions the vibrating screen plate at the in-process that the vibrating screen plate level rocked, prevents that the vibrating screen plate from damaging.
As an optimal technical scheme, vibrating screen plate below be provided with the back taper guide plate, the exit end butt joint screen cloth cylinder's of back taper guide plate top entry, the coal granule of whereabouts falls into screen cloth cylinder along the guide plate after vibrating screen plate screening.
As an optimal technical scheme, the top of screen cloth cylinder is uncovered, screen cloth cylinder's bottom is sealed, screen cloth cylinder's outer peripheral face is enclosed by the screen cloth, encloses into the screen cloth aperture of screen cloth cylinder outer peripheral face is less than the sieve mesh aperture of vibration sieve.
The mesh opening diameter around the outer peripheral surface of the mesh drum is 20 to 30mm, and may be, for example, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm or 30mm, but is not limited to the above-mentioned values, and other values not mentioned in the above-mentioned range are also applicable.
The bottom of the screen drum is provided with the driving motor.
As an optimal technical scheme of the utility model, multistage sieve divide into first sieve plate section, second sieve plate section and the third sieve plate section of coaxial setting by periphery to central direction in proper order.
The mesh aperture of the first sieve plate section is smaller than that of the second sieve plate section and smaller than that of the third sieve plate section.
The mesh opening size of the first screen segment is 15-20 mm, for example, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, 17.5mm, 18mm, 18.5mm, 19mm, 19.5mm or 20mm, but is not limited to the values listed, and other values not listed in the range of the values are also applicable.
The second screen deck section may have a mesh opening size of 10 to 15mm, for example, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm or 15mm, but is not limited to the values listed, and other values not listed in the range of the values are also applicable.
The third screen deck section may have a screen aperture of 5 to 10mm, for example, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm or 10mm, but is not limited to the values listed, and other values not listed in the range of values are also applicable.
As an optimized technical scheme of the utility model, multistage sieve below be provided with by outer to interior nested first annular baffle and second annular baffle in proper order, the shells inner wall of first annular baffle and fine screen section between form annular first cavity, first annular baffle and second annular baffle between form annular second cavity, second annular baffle enclose into cylindrical third cavity.
The first cavity is in butt joint with the first sieve plate section, the second cavity is in butt joint with the second sieve plate section, and the third cavity is in butt joint with the third sieve plate section.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an automatic integrative device of screening is smashed to coal of changing smashes and has carried out high integration with the screening, has integrated mechanical screening, centrifugal screening and multistage screening again in the screening stage for the screening of coal granule is more accurate. When the coal crushing and screening device is used, mechanical screening is realized through the vibrating screen plate, the crushed coal is primarily screened, and the vibration of the vibrating screen plate is utilized to improve the filtering effect of screen holes in the vibrating screen plate on coal particles and improve the coal crushing and screening precision; realize centrifugal screening through the screen cloth cylinder, after the coal granule after the primary screening gets into the screening cylinder, along with screen cloth cylinder rotation, the coal granule passes the screen cloth cylinder under the effect of centrifugal force and falls into the fine screen section and carry out multistage screening, and the coal granule of different particle diameters passes corresponding sieve paragraph and goes into in the corresponding cavity at the in-process that falls that rolls, and the layer upon layer of through mechanical screening, centrifugal screening and multistage screening is screened and is realized accurate classified screening.
Drawings
Fig. 1 is a schematic structural diagram of an integrated device for crushing and screening coal according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of area A of FIG. 1;
wherein, 1-shell; 2-a crushing section; 3-middle sieve section; 4-fine screening section; 5-a crushing roller; 6-induced draft fan; 7-vibrating the sieve plate; 8-a vibration motor; 9-a deflector; 10-screen drum; 11-a drive motor; 12-a first sieve plate section; 13-a second screen section; 14-a third screen section; 15-a first annular partition; 16-a second annular diaphragm; 17-a first cavity; 18-a second cavity; 19-a third cavity; 20-a feed hopper; 21-spring.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In a specific embodiment, the utility model provides an automatic integrative device of coal crushing screening, integrative device of coal crushing screening as shown in figure 1, including casing 1, casing 1 top is provided with the feeder hopper 20 of back taper structure, the bottom export of feeder hopper 20 communicates with each other with casing 1 is inside. The shell 1 is divided into a crushing section 2, a primary screening section, a middle screening section 3 and a fine screening section 4 from top to bottom in sequence along the flow direction of coal.
At least two crushing rollers 5 are arranged in the crushing section 2, crushing teeth are arranged on the outer peripheral surfaces of the crushing rollers 5, and the crushing teeth on the two adjacent crushing rollers 5 are meshed with each other and used for crushing coal. Specifically, two rows of crushing roller 5 groups are arranged in the crushing section 2, and are respectively marked as a first crushing roller 5 group and a second crushing roller 5 group from top to bottom; the first crushing roller 5 group comprises n crushing rollers 5 which are arranged side by side in the horizontal direction, wherein n is more than or equal to 2. The second crushing roller 5 group includes (n-1) crushing rollers 5 arranged side by side in the horizontal direction. The crushing rollers 5 included in the first crushing roller 5 group and the crushing rollers 5 included in the second crushing roller 5 group are distributed in a staggered manner. The shell 1 of the crushing section 2 is externally connected with an induced draft fan 6, and the induced draft fan 6 extracts dust generated in the coal crushing process.
Transversely be provided with vibrating screen plate 7 in the preliminary screening section, the both ends of vibrating screen plate 7 are marked as stiff end and vibration end respectively, vibrating screen plate 7's stiff end and the 1 inner wall flexonics of casing of preliminary screening section, vibrating screen plate 7's vibration end passes casing 1 of preliminary screening section and inserts vibrating motor 8, and vibrating motor 8 drives vibrating screen plate 7 and is small amplitude reciprocating motion on the horizontal direction, and vibrating screen plate 7's sieve mesh aperture is 30 ~ 40 mm. The flexible connection mode is as shown in fig. 2, and the stiff end of vibration sieve 7 is T shape structure, offers the recess of opening constriction on the 1 inner wall of casing of preliminary screening section, and the stiff end and the recess joint cooperation of vibration sieve 7 are provided with spring 21 between the terminal surface of the stiff end of vibration sieve 7 and the grooved underside. The vibrating screen plate 7 below is provided with back taper guide plate 9, and the exit end butt joint screen cloth cylinder 10's of back taper guide plate 9 top entry, and the coal granule of whereabouts falls into screen cloth cylinder 10 along guide plate 9 after 7 sieves of vibrating screen plate.
The vertical screen cloth cylinder 10 that is provided with in well sieve section 3, screen cloth cylinder 10 bottom is provided with driving motor 11, and driving motor 11 drives screen cloth cylinder 10 rotation, and the coal granule after 7 prescreens of vibration sieve falls into screen cloth cylinder 10, and along with screen cloth cylinder 10 rotation, the coal granule passes screen cloth cylinder 10 and falls into fine screening section 4 under the effect of centrifugal force. Specifically, the top of the screen drum 10 is open, the bottom of the screen drum 10 is sealed, the outer peripheral surface of the screen drum 10 is surrounded by the screen, and the screen aperture of the outer peripheral surface of the screen drum 10 is smaller than the screen aperture of the vibrating screen plate 7. Specifically, the screen aperture of the peripheral surface of the screen drum 10 is 20-30 mm.
The fine screen section 4 is internally provided with a multi-stage screen plate with an inverted cone structure, and the multi-stage screen plate is divided into at least three stages of screen plate sections which are coaxially arranged from the periphery to the center direction. From the outer periphery to the center direction, the mesh aperture of each grade of the sieve plate section is gradually increased; at least two annular partition plates which are nested with each other are arranged below the multi-stage sieve plate, a cavity formed by the annular partition plates is butted with the sieve plate section, and the coal particles screened by the sieve plate section fall into the corresponding cavity. Specifically, as shown in fig. 1, the multi-stage sieve plate is sequentially divided into a first sieve plate section 12, a second sieve plate section 13 and a third sieve plate section 14 which are coaxially arranged from the periphery to the center, and the sieve pore diameter of the first sieve plate section 12 is smaller than that of the second sieve plate section 13 and is smaller than that of the third sieve plate section 14. Further, the mesh aperture on the first sieve plate section 12 is 15-20 mm, the mesh aperture on the second sieve plate section 13 is 10-15 mm, and the mesh aperture on the third sieve plate section 14 is 5-10 mm. A first annular partition plate 15 and a second annular partition plate 16 which are sequentially nested from outside to inside are arranged below the multi-stage sieve plate, a first annular cavity 17 is formed between the first annular partition plate 15 and the inner wall of the shell 1 of the fine sieve section 4, a second annular cavity 18 is formed between the first annular partition plate 15 and the second annular partition plate 16, the second annular partition plate 16 encloses a columnar third cavity 19, the first cavity 17 is in butt joint with the first sieve plate section 12, the second cavity 18 is in butt joint with the second sieve plate section 13, and the third cavity 19 is in butt joint with the third sieve plate section 14.
In another embodiment, the present invention provides a method for using the integrated device for coal pulverization and screening, which comprises the following steps:
(1) the large coal is fed into the crushing section 2 through a feed hopper 20, and the crushing teeth on two adjacent crushing rollers 5 are meshed with each other to crush the large coal to obtain coal particles with different particle sizes;
(2) coal particles fall onto the vibrating screen plate 7, the vibrating motor 8 drives the vibrating screen plate 7 to do small-amplitude reciprocating motion in the horizontal direction, the coal particles are primarily screened, large particles are intercepted by the vibrating screen plate 7, and small particles pass through the vibrating screen plate 7 and fall into the screen drum 10 along the guide plate 9;
(3) the driving motor 11 drives the screen drum 10 to rotate, and along with the rotation of the screen drum 10, the coal particles falling into the screen drum 10 pass through the screen drum 10 under the action of centrifugal force and fall into the fine screening section 4
(4) Coal particles thrown out of the screen drum 10 fall onto the multistage screen plate along the inner wall of the shell 1, sequentially pass through the first screen plate section 12, the second screen plate section 13 and the third screen plate section 14 under the action of gravity, the coal particles with different particle sizes are intercepted by the screen plate sections or pass through the matched screen plate sections when passing through different screen plate sections, the coal particles passing through the first screen plate section 12 fall into the first cavity 17, and the coal particles passing through the first screen plate section 12 fall into the first cavity 17.
Example 1
The embodiment provides an integrative device of automatic coal crushing screening, integrative device of coal crushing screening based on the integrative device of coal crushing screening that a specific embodiment provided, wherein, first crushing roller 5 group includes 3 crushing rollers 5 that set up side by side in the horizontal direction, and second crushing roller 5 group includes 2 crushing rollers 5 that set up side by side in the horizontal direction. The mesh aperture of the vibrating screen plate 7 is 30 mm. The screen aperture of the peripheral surface of the screen drum 10 is 20 mm. Multistage sieve is divided into coaxial first sieve section 12, second sieve section 13 and the third sieve section 14 that set up by periphery to central direction in proper order, and the mesh aperture on first sieve section 12 is 15mm, and the mesh aperture on the second sieve section 13 is 10mm, and the mesh aperture on the third sieve section 14 is 5 mm. A first annular partition plate 15 and a second annular partition plate 16 which are sequentially nested from outside to inside are arranged below the multi-stage sieve plate, a first annular cavity 17 is formed between the first annular partition plate 15 and the inner wall of the shell 1 of the fine sieve section 4, a second annular cavity 18 is formed between the first annular partition plate 15 and the second annular partition plate 16, the second annular partition plate 16 encloses a columnar third cavity 19, the first cavity 17 is in butt joint with the first sieve plate section 12, the second cavity 18 is in butt joint with the second sieve plate section 13, and the third cavity 19 is in butt joint with the third sieve plate section 14.
Example 2
The embodiment provides an automatic integrative device of coal crushing screening, integrative device of coal crushing screening based on a concrete implementation provides's integrative device of coal crushing screening, wherein, first crushing roller 5 group includes 4 crushing rollers 5 that set up side by side in the horizontal direction, and second crushing roller 5 group includes 3 crushing rollers 5 that set up side by side in the horizontal direction. The mesh opening of the vibrating screen plate 7 is 32 mm. The screen hole diameter of the peripheral surface of the screen drum 10 is 23 mm. Multistage sieve is divided into coaxial first sieve section 12, second sieve section 13 and the third sieve section 14 that set up by periphery to central direction in proper order, and the mesh aperture on first sieve section 12 is 16mm, and the mesh aperture on the second sieve section 13 is 12mm, and the mesh aperture on the third sieve section 14 is 6 mm. A first annular partition plate 15 and a second annular partition plate 16 which are sequentially nested from outside to inside are arranged below the multi-stage sieve plate, a first annular cavity 17 is formed between the first annular partition plate 15 and the inner wall of the shell 1 of the fine sieve section 4, a second annular cavity 18 is formed between the first annular partition plate 15 and the second annular partition plate 16, the second annular partition plate 16 encloses a columnar third cavity 19, the first cavity 17 is in butt joint with the first sieve plate section 12, the second cavity 18 is in butt joint with the second sieve plate section 13, and the third cavity 19 is in butt joint with the third sieve plate section 14.
Example 3
The embodiment provides an automatic integrative device of coal crushing screening, integrative device of coal crushing screening based on a concrete implementation provides's integrative device of coal crushing screening, wherein, first crushing roller 5 group includes 4 crushing rollers 5 that set up side by side in the horizontal direction, and second crushing roller 5 group includes 3 crushing rollers 5 that set up side by side in the horizontal direction. The mesh opening of the vibrating screen plate 7 is 35 mm. The screen hole diameter of the peripheral surface of the screen drum 10 is 25 mm. Multistage sieve is divided into coaxial setting's first sieve section 12, second sieve section 13, third sieve section 14 and fourth sieve section by periphery to central direction in proper order, and the mesh aperture on the first sieve section 12 is 18mm, and the mesh aperture on the second sieve section 13 is 13mm, and the mesh aperture on the third sieve section 14 is 8mm, and the mesh aperture on the fourth sieve section is 5 mm. A first annular partition plate 15, a second annular partition plate 16 and a third annular partition plate which are sequentially nested from outside to inside are arranged below the multistage sieve plate, an annular first cavity 17 is formed between the first annular partition plate 15 and the inner wall of the shell 1 of the fine sieve section 4, an annular second cavity 18 is formed between the first annular partition plate 15 and the second annular partition plate 16, an annular third cavity 19 is formed between the second annular partition plate 16 and the third annular partition plate, and a columnar fourth cavity is enclosed by the third annular partition plate. The first cavity 17 is butted against the first screen section 12, the second cavity 18 is butted against the second screen section 13, the third cavity 19 is butted against the third screen section 14, and the fourth cavity is butted against the fourth screen section.
Example 4
The embodiment provides an integrative device of automatic coal crushing screening, integrative device of coal crushing screening based on the integrative device of coal crushing screening that a specific embodiment provided, wherein, 5 groups of first crushing roller include 5 crushing rollers 5 that set up side by side in the horizontal direction, and 5 groups of second crushing roller include 4 crushing rollers 5 that set up side by side in the horizontal direction. The mesh opening of the vibrating screen plate 7 is 37 mm. The screen hole diameter of the peripheral surface of the screen drum 10 is 26 mm. Multistage sieve is divided into coaxial setting's first sieve section 12, second sieve section 13, third sieve section 14 and fourth sieve section by periphery to central direction in proper order, and the mesh aperture on the first sieve section 12 is 19mm, and the mesh aperture on the second sieve section 13 is 14mm, and the mesh aperture on the third sieve section 14 is 9mm, and the mesh aperture on the fourth sieve section is 4 mm. A first annular partition plate 15, a second annular partition plate 16 and a third annular partition plate which are sequentially nested from outside to inside are arranged below the multistage sieve plate, an annular first cavity 17 is formed between the first annular partition plate 15 and the inner wall of the shell 1 of the fine sieve section 4, an annular second cavity 18 is formed between the first annular partition plate 15 and the second annular partition plate 16, an annular third cavity 19 is formed between the second annular partition plate 16 and the third annular partition plate, and a columnar fourth cavity is enclosed by the third annular partition plate. The first cavity 17 is butted against the first screen section 12, the second cavity 18 is butted against the second screen section 13, the third cavity 19 is butted against the third screen section 14, and the fourth cavity is butted against the fourth screen section.
Example 5
The embodiment provides an integrative device of automatic coal crushing screening, integrative device of coal crushing screening based on the integrative device of coal crushing screening that a specific embodiment provided, wherein, 5 groups of first crushing roller include 5 crushing rollers 5 that set up side by side in the horizontal direction, and 5 groups of second crushing roller include 4 crushing rollers 5 that set up side by side in the horizontal direction. The mesh aperture of the vibrating screen plate 7 is 40 mm. The screen aperture which encloses the peripheral surface of the screen drum 10 is 30 mm. Multistage sieve is divided into coaxial setting's first sieve section 12, second sieve section 13, third sieve section 14, fourth sieve section and fifth sieve section by periphery to central direction in proper order, and the mesh aperture on first sieve section 12 is 20mm, and the mesh aperture on the second sieve section 13 is 15mm, and the mesh aperture on the third sieve section 14 is 10mm, and the mesh aperture on the fourth sieve section is 8mm, and the mesh aperture on the fifth sieve section is 5 mm. A first annular partition plate 15, a second annular partition plate 16, a third annular partition plate and a fourth annular partition plate are sequentially nested from outside to inside and are arranged below the multistage sieve plate, an annular first cavity 17 is formed between the first annular partition plate 15 and the inner wall of the shell 1 of the fine sieve section 4, an annular second cavity 18 is formed between the first annular partition plate 15 and the second annular partition plate 16, an annular third cavity 19 is formed between the second annular partition plate 16 and the third annular partition plate, an annular fourth cavity is formed between the third annular partition plate and the fourth annular partition plate, and a cylindrical fifth cavity is formed by the fourth annular partition plate. The first cavity 17 is in butt joint with the first sieve plate section 12, the second cavity 18 is in butt joint with the second sieve plate section 13, the third cavity 19 is in butt joint with the third sieve plate section 14, the fourth cavity is in butt joint with the fourth sieve plate section, and the fifth cavity is in butt joint with the fifth sieve plate section.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. An automatic integrated device for crushing and screening coal is characterized by comprising a shell, wherein the shell is sequentially divided into a crushing section, a primary screening section, a middle screening section and a fine screening section from top to bottom along the flow direction of the coal;
at least two crushing rollers are arranged in the crushing section, crushing teeth are arranged on the peripheral surfaces of the crushing rollers, and the crushing teeth on two adjacent crushing rollers are meshed with each other and used for crushing coal; a vibrating screen plate is transversely arranged in the primary screen section; a screen drum is vertically arranged in the middle screen section, the screen drum is in transmission connection with a driving motor, the driving motor drives the screen drum to rotate, coal particles primarily screened by the vibrating screen plate fall into the screen drum, and the coal particles pass through the screen drum under the action of centrifugal force and fall into the fine screening section along with the rotation of the screen drum; the fine screen section is internally provided with a multi-stage screen plate with an inverted cone structure, and the multi-stage screen plate is divided into at least three stages of coaxially arranged screen plate sections from the periphery to the center; from the outer periphery to the center direction, the mesh aperture of each grade of the sieve plate section is gradually increased; at least two annular partition plates which are nested with each other are arranged below the multistage sieve plate, a cavity formed by the annular partition plates is butted with the sieve plate sections, and the coal particles screened by the sieve plate sections fall into corresponding cavities.
2. The integrated coal pulverizing and screening device as claimed in claim 1, wherein a feed hopper is arranged at the top of the casing, and a bottom outlet of the feed hopper is communicated with the inside of the casing;
the feed hopper be back taper structure.
3. The integrated coal crushing and screening device as claimed in claim 1, wherein two rows of crushing roller sets are arranged in the crushing section, and are respectively marked as a first crushing roller set and a second crushing roller set from top to bottom;
the first crushing roller group comprises n crushing rollers which are arranged side by side in the horizontal direction, wherein n is more than or equal to 2;
the second crushing roller group comprises (n-1) crushing rollers which are arranged side by side in the horizontal direction;
the crushing rollers included in the first crushing roller group and the crushing rollers included in the second crushing roller group are distributed in a staggered mode.
4. The integrated device for crushing and screening coal as claimed in claim 1, wherein a shell of the crushing section is externally connected with an induced draft fan, and the induced draft fan is used for pumping out dust generated in the coal crushing process.
5. The integrated coal crushing and screening device according to claim 1, wherein two ends of the vibrating screen plate are respectively marked as a fixed end and a vibrating end, the fixed end of the vibrating screen plate is flexibly connected with the inner wall of the shell of the primary screen section, the vibrating end of the vibrating screen plate penetrates through the shell of the primary screen section and is connected to a vibrating motor, and the vibrating motor drives the vibrating screen plate to do small-amplitude reciprocating motion in the horizontal direction;
the mesh aperture of the vibrating screen plate is 30-40 mm.
6. The integrated coal crushing and screening device according to claim 5, wherein the fixed end of the vibrating screen plate is of a T-shaped structure, a groove with a narrowed opening is formed in the inner wall of the shell of the primary screen section, and the fixed end of the vibrating screen plate is in clamping fit with the groove;
and a spring is arranged between the end face of the fixed end of the vibrating screen plate and the bottom surface of the groove.
7. The coal crushing and screening integrated device according to claim 1, wherein an inverted cone-shaped guide plate is arranged below the vibrating screen plate, the outlet end of the inverted cone-shaped guide plate is butted with the top inlet of the screen drum, and coal particles falling after being screened by the vibrating screen plate fall into the screen drum along the guide plate.
8. The integrated coal pulverizing and screening device as claimed in claim 1, wherein the top of the screen drum is open, the bottom of the screen drum is closed, the peripheral surface of the screen drum is surrounded by the screen, and the mesh diameter of the screen surrounding the peripheral surface of the screen drum is smaller than the mesh diameter of the vibrating screen plate;
the screen mesh diameter which surrounds the peripheral surface of the screen mesh roller is 20-30 mm;
the bottom of the screen drum is provided with the driving motor.
9. The integrated coal crushing and screening device according to claim 1, wherein the multi-stage sieve plate is sequentially divided into a first sieve plate section, a second sieve plate section and a third sieve plate section which are coaxially arranged from the periphery to the center;
the mesh aperture of the first sieve plate section is smaller than that of the second sieve plate section and smaller than that of the third sieve plate section;
the aperture of a sieve pore on the first sieve plate section is 15-20 mm;
the aperture of the sieve pore on the second sieve plate section is 10-15 mm;
and the aperture of the sieve pore on the third sieve plate section is 5-10 mm.
10. The integrated coal crushing and screening device according to claim 9, wherein a first annular partition plate and a second annular partition plate are sequentially nested from outside to inside below the multistage sieve plate, an annular first cavity is formed between the first annular partition plate and the inner wall of the shell of the fine sieve section, an annular second cavity is formed between the first annular partition plate and the second annular partition plate, and the second annular partition plate surrounds a cylindrical third cavity;
the first cavity is in butt joint with the first sieve plate section, the second cavity is in butt joint with the second sieve plate section, and the third cavity is in butt joint with the third sieve plate section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120770951.2U CN215140323U (en) | 2021-04-15 | 2021-04-15 | Automatic integrative device of screening is smashed to coal of changing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120770951.2U CN215140323U (en) | 2021-04-15 | 2021-04-15 | Automatic integrative device of screening is smashed to coal of changing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215140323U true CN215140323U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120770951.2U Expired - Fee Related CN215140323U (en) | 2021-04-15 | 2021-04-15 | Automatic integrative device of screening is smashed to coal of changing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215140323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117463613A (en) * | 2023-12-26 | 2024-01-30 | 洛阳海思德重工有限公司 | Vibration screening device |
-
2021
- 2021-04-15 CN CN202120770951.2U patent/CN215140323U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117463613A (en) * | 2023-12-26 | 2024-01-30 | 洛阳海思德重工有限公司 | Vibration screening device |
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