CN120618851A - A screening device for coal powder preparation with multi-stage sorting function - Google Patents
A screening device for coal powder preparation with multi-stage sorting functionInfo
- Publication number
- CN120618851A CN120618851A CN202511018728.1A CN202511018728A CN120618851A CN 120618851 A CN120618851 A CN 120618851A CN 202511018728 A CN202511018728 A CN 202511018728A CN 120618851 A CN120618851 A CN 120618851A
- Authority
- CN
- China
- Prior art keywords
- frame
- screening
- fixedly connected
- screen frame
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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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
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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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
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
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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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of coal dust preparation screening, and discloses screening equipment with a multistage separation function, which comprises a base, wherein a first screening mechanism is arranged at the top of the base, a second screening mechanism is arranged on the inner side of the first screening mechanism, a storage box is connected inside the base in a sliding manner, a protection mechanism is arranged on the front side of the first screening mechanism, the first screening mechanism comprises a screening component and a feeding component, when the screening component is used, after crushing, and coal dust conveyed by a conveying box enters the top of a screening plate in a coarse screening frame, a fixed rod works under the driving of a chain wheel group, a bearing seat, a needle bearing and the fixed rod are symmetrically designed, the fixed rod rotates to enable a connecting shaft to be driven to rotate by a connecting frame, and the connecting shaft drives a concave frame and a coarse screening frame to move left and right, so that coal dust entering the coarse screening frame and positioned at the top of the screening plate can be screened.
Description
Technical Field
The invention relates to the technical field of coal dust preparation and screening, in particular to screening equipment with a multi-stage separation function for coal dust preparation.
Background
In the technical field of coal dust preparation and screening, the particle size distribution of the coal dust has a critical influence on the subsequent combustion efficiency, the product quality and the like, and along with the continuous improvement of the quality requirement of industrial production on the coal dust, the traditional coal dust preparation and screening equipment gradually exposes a plurality of defects;
Most of the existing pulverized coal screening equipment adopts a single-stage screening structure, fine classification of pulverized coal is difficult to realize, screening accuracy is low, and strict requirements of different application scenes on pulverized coal granularity cannot be met. Meanwhile, in the screening process, coal dust is easy to accumulate and block at the screen holes, so that the screening efficiency is seriously affected, and the running cost and the maintenance difficulty of equipment are increased;
Aiming at the problems, there is a great need to develop a screening device for preparing coal dust with a multi-stage separation function, which achieves the effects of high screening efficiency, low energy consumption and good safety, so as to improve the quality and efficiency of coal dust preparation and meet the actual demands of industrial production.
The blast furnace pulverized coal screening device (grant publication number: CN 220941088U) according to the patent net publication includes a screening box, a feed, etc. for screening work.
With respect to the above description, the applicant believes that the following problems exist:
This blast furnace buggy screening plant utilizes screening case, feeding etc. to carry out screening work, and this equipment is when using, only carries out screening work through screening board, adopts single-stage screening structure, is difficult to realize the fine classification to the buggy, leads to screening precision lower, can't satisfy the strict requirement of different application scenes to the buggy granularity to stationary screening board does not have external drive and sieves, and screening effect is poor, consequently needs this equipment to improve.
Disclosure of Invention
The invention aims to provide screening equipment with a multistage separation function for preparing pulverized coal, so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the technical scheme that the screening equipment for preparing the pulverized coal with the multi-stage separation function comprises a base, wherein a first screening mechanism is arranged at the top of the base, a second screening mechanism is arranged at the inner side of the first screening mechanism, a storage box is connected in the base in a sliding manner, and a protection mechanism is arranged at the front side of the first screening mechanism;
the first screening mechanism comprises a screening component and a feeding component, the screening component is arranged at the top of the supporting table, and the feeding component is arranged at the top of the screening component;
The screening assembly comprises a fixing frame, fixing frame fixedly connected with base top, fixing frame left side fixedly connected with bearing frame, fixedly connected with bearing in the bearing frame bearing, fixedly connected with dead lever in the bearing, dead lever rear side fixedly connected with link, the peripheral rotation of link is connected with the connecting axle, the peripheral rotation of connecting axle right-hand member is connected with the spill frame, spill frame top fixedly connected with coarse screen frame, both sides fixedly connected with first connecting seat around the coarse screen frame, the peripheral rotation in first connecting seat top is connected with the back shaft, the inboard rotation in back shaft top is connected with the second connecting seat, second connecting seat fixedly connected with in the inboard top of fixing frame, the inboard fixedly connected with screening plate of coarse screen frame, screening plate right side fixedly connected with collects the frame, it is inboard to collect the frame fixedly connected with coarse screen frame, coarse screen frame front side fixedly connected with first servo motor, first servo motor rear side fixedly connected with dwang, the dwang rotates to be connected with coarse screen frame and collects the frame inside, the peripheral fixedly connected with auger frame of coarse screen frame.
According to the technical scheme, the bearing seat, the needle bearing and the fixing rod are arranged in two groups, are symmetrically distributed on the left side of the fixing frame and are respectively located on the front side and the rear side of the connecting frame, so that the stability of the connecting frame is guaranteed by arranging the two groups.
According to the technical scheme, sieve mesh has been seted up respectively to coarse screen frame bottom and screening plate inside, and the inside sieve mesh diameter of screening plate is greater than coarse screen frame bottom screening diameter, and the blown down tank has been seted up to coarse screen frame rear side, the guide frame is located the blown down tank rear side, and coarse screen frame and screening plate are the slope setting, are convenient for carry out hierarchical screening work through coarse screen frame and screening plate.
According to the technical scheme, the feeding assembly comprises a second servo motor, the second servo motor is fixedly connected to the top of the fixing frame, a first rotating shaft is fixedly connected to the front side of the servo motor, a supporting plate is fixedly connected to the periphery of the first rotating shaft in a rotating mode, the supporting plate is fixedly connected to the top of the fixing frame, a first chain wheel is fixedly connected to the periphery of the first shaft, a first chain is meshed to the periphery of the first chain, a chain wheel group is meshed to the inner side of the first chain, the chain wheel group is fixedly connected to the periphery of the fixing rod, a second chain is meshed to the periphery of the chain wheel group, a second chain wheel is meshed to the inner side of the second chain, a second rotating shaft is fixedly connected to the inner side of the second rotating shaft in a rotating mode, a stirring shaft is fixedly connected to the inner side of the conveying box in a rotating mode, a storage box is fixedly connected to the top of the conveying box, and a support is fixedly connected to the periphery of the storage box.
According to the technical scheme, the periphery of the stirring shaft is in contact with the inner side of the conveying box, and the right side of the conveying box is positioned at the top of the coarse screen frame, so that coal dust is conveniently conveyed into the coarse screen frame through the conveying box to carry out screening work.
According to the technical scheme, the peripheral fixedly connected with mounting bracket of delivery box, mounting bracket fixed connection is in mount left side top, support fixed connection is in mount left side top, is convenient for guarantee the stability of storage box through the support.
According to the technical scheme, the second screening mechanism comprises a limiting frame, both sides around in the limiting frame fixedly connected with mount, the inboard sliding connection of limiting frame has a fine screen frame, fine screen frame left side fixedly connected with linking bridge, the inboard rotation of linking bridge is connected with the actuating arm, the inside rotation of actuating arm left end is connected with the connecting rod, connecting rod bottom fixedly connected with rolling disc, rolling disc bottom fixedly connected with drive shaft, the peripheral rotation of drive shaft is connected with brace table, brace table fixedly connected with in mount left side bottom, drive shaft bottom fixedly connected with third servo motor, third servo motor fixedly connected with is inboard in the brace table.
According to the technical scheme, the sieve mesh is seted up inside the fine screen frame, and the sieve mesh diameter is less than coarse screen frame bottom sieve mesh diameter, and the fine screen frame is located coarse screen frame bottom and deposits the case top, is convenient for carry out screening work to the buggy after sieving through fine screen frame further.
According to the technical scheme, the protection mechanism comprises a fixed frame, the fixed frame is fixedly connected to the top of the front side of the fixed frame, a protection cover is connected to the inside of the fixed frame in a sliding mode, a first fixed shaft is connected to the inside of the protection cover in a threaded mode, a fixed table is connected to the bottom of the protection cover in a sliding mode, the fixed table is fixedly connected to the bottom of the front side of the fixed frame, and a second fixed shaft is connected to the inside of the fixed table in a threaded mode.
According to the technical scheme, the first fixed shaft and the second fixed shaft penetrate through the fixed frame and the protective cover respectively, the front side of the protective cover is concave, the protective cover is slidably connected to the first rotating shaft, the second rotating shaft and the periphery of the fixed rod, the inner side of the protective cover is located at the rear side of the first sprocket, the sprocket set and the second sprocket, and the protective cover can conveniently protect the first sprocket, the sprocket set, the second sprocket, the first chain and the second chain.
Compared with the prior art, the invention has the following beneficial effects:
1. This screening equipment with multistage separation function's buggy preparation, through the screening subassembly that sets up, after the breakage, and when the buggy that carries through the delivery box enters into the screening board top in the coarse screening frame, the dead lever is carried out under the drive of sprocket group, the bearing frame, needle bearing and two sets of symmetrical designs of dead lever, the dead lever rotates and makes, can drive the connecting axle through the link and rotate, and make the connecting axle drive concave frame and coarse screening frame and move about, can be to entering into in the coarse screening frame, and be in the buggy at screening board top and carry out screening work, when the coarse screening frame carries out side-to-side movement, first connecting seat can drive the back shaft and move about, and make the back shaft top carry out side-to-side movement in the second connecting seat, not only can drive the coarse screening frame and the stability of screening board, coarse screening frame and screening board, the sieve pore diameter is different and is the slope setting, can separate the buggy of different granularity, bigger granule drops to collecting the frame on the screening board, carry to the guide frame and discharge through the auger, the accurate size that passes through is little, the accurate size that falls down in the coarse screening frame is prepared, the accurate fine coal dust has satisfied in the fine screening frame, the fine screen frame is prepared and the fine coal is accurate to the fine screen frame is required.
2. This screening equipment with multistage separation function's buggy preparation, through the pay-off subassembly that sets up, when throwing into the storage tank with the buggy after the breakage, drive the peripheral fixedly connected's of first axis of rotation first sprocket through the second servo motor and rotate, make first sprocket drive sprocket group work through first chain, sprocket group during operation can drive the second chain through the second chain and rotate, and sprocket group can drive the dead lever in the screening subassembly and rotate, realize the linkage work between screening subassembly and the pay-off subassembly, the second sprocket rotates and can drive the (mixing) shaft through the second axis of rotation and rotate, because of the delivery tank right side is in coarse screen frame top, the second axis of rotation not only drives the (mixing) shaft in the delivery tank stirring buggy, prevent that buggy from piling up, the jam, can also carry the buggy evenly to carry out screening work in the coarse screen frame, can control the buggy simultaneously enter into the volume in the coarse screen frame, efficiency and quality of screening are improved, the meshing of sprocket and chain through the sprocket in-chain during power transmission, the use of a plurality of parts is realized, the use of independent drive device has been reduced, the equipment energy consumption has been improved, the whole operation efficiency has been improved, the equipment operation is more energy-conserving and efficient.
3. This screening equipment with multistage separation function's buggy preparation, through the second screening mechanism that sets up, when the buggy after the breakage enters into the fine screen frame inside through coarse screen frame and screening board, the fine screen frame passes through spacing frame realization sliding connection, and by parts such as third servo motor drive rolling disc, actuating arm drive fine screen frame left and right sides remove, can be according to actual production demand, through the rotational speed isoparametric of adjusting third servo motor, the range of movement about the flexible adjustment fine screen frame, with the screening requirement of adaptation different nature, different granularity scope buggy, the adaptability of equipment to different operating modes has been strengthened, and the application range of buggy after the screening can drop and store in the case inside, impurity passes through fine screen frame right side discharge.
4. This screening equipment with multistage separation function's buggy preparation, through the protection machanism that sets up, when carrying out multistage screening work to the buggy after the breakage through coarse screen frame, screening plate and fine screen frame, provide the safety guarantee for the equipment operation, fixed frame and fixed station cooperation, make protection casing slidable mounting in the mount front side, it is fixed through first fixed axle and second fixed axle, and protection casing sliding connection is peripheral in first axis of rotation, second axis of rotation and dead lever, and the inboard is located first sprocket, sprocket group and second sprocket rear side, when carrying out screening work, can avoid the buggy of lifting to first sprocket, sprocket group, second sprocket, first chain and second chain cause the influence, thereby play the guard action to these equipment, when need maintain equipment, when overhauling, first fixed axle and second fixed axle can easily be dismantled, the protection casing is opened in the slip, the staff is close equipment internals to the convenience of equipment maintenance has been improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a schematic rear view of the present invention;
FIG. 3 is a schematic view of a first screening mechanism;
FIG. 4 is a schematic view of the inner side structure of the fixing frame;
FIG. 5 is a schematic view of the bottom structure of a coarse screen frame;
FIG. 6 is a schematic view of the right side structure of the connecting shaft;
FIG. 7 is a schematic view of the inside structure of a coarse screen frame;
FIG. 8 is a schematic diagram of a feed assembly;
FIG. 9 is a schematic cross-sectional view of a transfer box;
FIG. 10 is a schematic diagram of a second screening mechanism;
fig. 11 is a schematic structural view of the protection mechanism.
In the figure, 1, a base; 2, a first screening mechanism; 3, a second screening mechanism; 4, a protection mechanism, 5, a storage box, 21, a screening assembly, 22, a feeding assembly, 211, a fixing frame, 212, a bearing seat, 213, a fixed rod, 214, a coarse screen frame, 215, a first servo motor, 216, a needle bearing, 217, a connecting frame, 218, a connecting shaft, 219, a first connecting seat, 2191, a supporting shaft, 2192, a second connecting seat, 2193, a concave frame, 2194, a screening plate, 2195, a collecting frame, 2196, a rotating rod, 2197, a packing auger, 2198, a guide frame, 221, a second servo motor, 222, a first rotating shaft, 223, a first sprocket, 224, a first chain, 225, a sprocket set, 226, a second chain, 227, a second sprocket, 228, a second rotating shaft, 229, a conveying box, 2291, a stirring shaft, 2292, a mounting bracket, 2293, a storage box, 2294, a bracket, 2295, a supporting plate, 31, a limit frame, 32, a fine screen frame, 33, a connecting frame, 34, a driving arm, 35, a connecting rod, 36, a rotating disc, 37, a third rotating disc, 38, a first sprocket, 224, a first chain, a second sprocket set, a fixed shaft, 43, a fixed shaft, a fixed table, and a fixed table.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides the following technical scheme:
example 1
Referring to fig. 1 to 11, a screening device for preparing pulverized coal with a multi-stage separation function comprises a base 1, wherein a first screening mechanism 2 is arranged at the top of the base 1, a second screening mechanism 3 is arranged on the inner side of the first screening mechanism 2, a storage box 5 is slidably connected in the base 1, and a protection mechanism 4 is arranged on the front side of the first screening mechanism 2;
The first screening mechanism 2 comprises a screening assembly 21 and a feeding assembly 22, wherein the screening assembly 21 is arranged at the top of the supporting table 38, and the feeding assembly 22 is arranged at the top of the screening assembly 21;
The screening assembly 21 comprises a fixing frame 211, the fixing frame 211 is fixedly connected to the top of a base 1, a bearing seat 212 is fixedly connected to the left side of the fixing frame 211, a needle bearing 216 is fixedly connected to the inside of the bearing seat 212, a fixing rod 213 is fixedly connected to the inside of the needle bearing 216, a connecting frame 217 is fixedly connected to the rear side of the fixing rod 213, a connecting shaft 218 is rotatably connected to the periphery of the connecting frame 217, a concave frame 2193 is rotatably connected to the right end periphery of the connecting shaft 218, a coarse screen frame 214 is fixedly connected to the top of the concave frame 2193, first connecting seats 219 are fixedly connected to the front side and the rear side of the coarse screen frame 214, a supporting shaft 2191 is rotatably connected to the periphery of the first connecting seats 219, a second connecting seat 2192 is rotatably connected to the inner side of the fixing frame 211, a screening plate 2194 is fixedly connected to the inner side of the coarse screen frame 214, a collecting frame 2195 is fixedly connected to the inner side of the coarse screen frame 214, a first servo motor 215 is fixedly connected to the front side of the connecting shaft 218, a rotary rod 2196 is rotatably connected to the rotary rod 2196, and the rotary rod 2196 is fixedly connected to the inner side of the coarse screen frame 2195, and the rotary rod 2198 is fixedly connected to the inner side of the rotary rod 2196.
Further, the bearing seat 212, the needle bearing 216 and the fixing rod 213 are provided with two groups, and are symmetrically distributed on the left side of the fixing frame 211 and respectively located on the front side and the rear side of the connecting frame 217, so that the stability of the connecting frame 217 is ensured by arranging the two groups.
Further, sieve meshes have been seted up respectively to coarse screen frame 214 bottom and screening board 2194 inside, and the inside sieve mesh diameter of screening board 2194 is greater than coarse screen frame 214 bottom screening diameter, and the blown down tank has been seted up to coarse screen frame 214 rear side, and guide frame 2198 is located the blown down tank rear side, and coarse screen frame 214 and screening board 2194 are the slope setting, are convenient for carry out classifying screen work through coarse screen frame 214 and screening board 2194.
Example two
Referring to fig. 1-11, and based on the first embodiment, the feeding assembly 22 further includes a second servo motor 221, the second servo motor 221 is fixedly connected to the top of the fixing frame 211, the front side of the servo motor is fixedly connected with a first rotating shaft 222, the periphery of the first rotating shaft 222 is rotatably connected with a supporting plate 2295, the supporting plate 2295 is fixedly connected to the top of the fixing frame 211, the periphery of the first shaft is fixedly connected with a first sprocket 223, the periphery of the first sprocket 223 is meshed with a first chain 224, the inner side of the first chain 224 is meshed with a sprocket set 225, the sprocket set 225 is fixedly connected to the periphery of the fixing rod 213, the periphery of the sprocket set 225 is meshed with a second chain 226, the inner side of the second chain 226 is meshed with a second sprocket 227, the inner side of the second sprocket 227 is fixedly connected with a second rotating shaft 228, the periphery of the second rotating shaft 228 is fixedly connected with a stirring shaft 2291, the periphery of the second rotating shaft 228 is rotatably connected to the inner side of the conveying box 229, the top of the conveying box 229 is fixedly connected with a storage box 2293, and the periphery of the storage box 2293 is fixedly connected with a support 2294.
Further, the periphery of the stirring shaft 2291 is in contact with the inner side of the conveying box 229, and the right side of the conveying box 229 is positioned at the top of the coarse screen frame 214, so that pulverized coal is conveyed into the coarse screen frame 214 through the conveying box 229 for screening.
Further, the outer periphery of the conveying box 229 is fixedly connected with a mounting frame 2292, the mounting frame 2292 is fixedly connected to the left top of the fixing frame 211, and the support 2294 is fixedly connected to the left top of the fixing frame 211, so that the stability of the storage box 2293 is guaranteed through the support 2294.
Example III
Referring to fig. 1-11, and based on the first embodiment and the second embodiment, further obtaining that the second screening mechanism 3 includes a limiting frame 31, where the limiting frame 31 is fixedly connected to front and rear sides in the fixing frame 211, the inner side of the limiting frame 31 is slidably connected with a fine screen frame 32, the left side of the fine screen frame 32 is fixedly connected with a connecting frame 33, the inner side of the connecting frame 33 is rotatably connected with a driving arm 34, the left end of the driving arm 34 is rotatably connected with a connecting rod 35, the bottom of the connecting rod 35 is fixedly connected with a rotating disc 36, the bottom of the rotating disc 36 is fixedly connected with a driving shaft 39, the periphery of the driving shaft 39 is rotatably connected with a supporting table 38, the supporting table 38 is fixedly connected to the left side bottom of the fixing frame 211, the bottom of the driving shaft 39 is fixedly connected with a third servo motor 37, and the third servo motor 37 is fixedly connected to the inner side of the supporting table 38.
Further, the sieve mesh is opened inside the fine sieve frame 32, and the sieve mesh diameter is smaller than the sieve mesh diameter at the bottom of the coarse sieve frame 214, and the fine sieve frame is positioned at the bottom of the coarse sieve frame 214 and at the top of the storage box 5, so that the screened pulverized coal can be further screened through the fine sieve frame 32.
Example IV
Referring to fig. 1-11, and based on the first, second and third embodiments, the protection mechanism 4 further includes a fixing frame 41, where the fixing frame 41 is fixedly connected to the top of the front side of the fixing frame 211, a protection cover 43 is slidably connected to the inside of the fixing frame 41, a first fixing shaft 42 is screwed inside the protection cover 43, a fixing table 44 is slidably connected to the bottom of the protection cover 43, the fixing table 44 is fixedly connected to the bottom of the front side of the fixing frame 211, and a second fixing shaft 45 is screwed inside the fixing table 44.
Further, the first fixing shaft 42 and the second fixing shaft 45 respectively penetrate through the fixing frame 41 and the protecting cover 43, the front side of the protecting cover 43 is concave, the protecting cover 43 is slidably connected to the first rotating shaft 222, the second rotating shaft 228 and the periphery of the fixing rod 213, and the inner side of the protecting cover is located at the rear sides of the first sprocket 223, the sprocket set 225 and the second sprocket 227, so that the protecting cover 43 can protect the first sprocket 223, the sprocket set 225, the second sprocket 227, the first chain 224 and the second chain 226.
In the actual operation process, when the device is used, the protective cover 43 is connected inside the fixed frame 41 and inside the fixed table 44 in a sliding way so as to be positioned at the front side of the fixed frame 211, the protective cover 43 is fixed with the fixed frame 41 and the fixed table 44 through the first fixed shaft 42 and the second fixed shaft 45, stability between the protective cover 43 and the fixed frame 41 and the fixed table 44 is guaranteed, the protective cover 43 is connected on the periphery of the first rotating shaft 222, the second rotating shaft 228 and the fixed rod 213 in a sliding way, the inner side of the protective cover 43 is positioned at the rear side of the first sprocket 223, the sprocket set 225 and the second sprocket 227, and when screening work is carried out, the raised pulverized coal can be prevented from affecting the first sprocket 223, the sprocket set 225, the second sprocket 227, the first chain 224 and the second chain 226, so that protective effect is achieved on the devices, when maintenance and overhaul of the devices are needed, the first fixed shaft 42 and the second fixed shaft 45 can be easily disassembled, the protective cover 43 is opened in a sliding way, workers can conveniently access the internal parts of the devices, convenience of the device maintenance and the safety of operation are improved, and meanwhile, the collecting device is placed at the right side of the coarse material frame and the rear side of the material guiding frame 2198;
When crushed coal dust is thrown into the storage box 2293, the second servo motor 221 drives the first sprocket 223 fixedly connected with the periphery of the first rotating shaft 222 to rotate, so that the first sprocket 223 drives the sprocket group 225 to work through the first chain 224, the sprocket group 225 drives the second chain 226 to rotate through the second chain 226 when in work, the sprocket group 225 drives the fixed rod 213 in the screening assembly 21 to rotate, linkage work between the screening assembly 21 and the feeding assembly 22 is realized, the second sprocket 227 rotates to drive the stirring shaft 2291 to rotate through the second rotating shaft 228, and the right side of the conveying box 229 is positioned at the top of the coarse screen frame 214, the second rotating shaft 228 not only drives the stirring shaft 2291 to stir the coal dust in the conveying box 229, so that coal dust is prevented from accumulating and blocking, but also can uniformly convey the coal dust into the coarse screen frame 214 for screening work, meanwhile, the quantity of the coal dust entering into the coarse screen frame 214 can be controlled, the screening efficiency and the quality are improved, the use of an independent driving device is reduced, the whole running efficiency is improved, and the energy-saving and the high efficiency of the equipment is enabled to be operated efficiently by the engagement of the sprocket and the chains in the power transmission process;
When pulverized coal conveyed by the conveying box 229 enters the top of the screening plate 2194 in the coarse screen frame 214 after being crushed, the fixing rod 213 works under the drive of the chain wheel set 225, the bearing seat 212, the needle bearing 216 and the two groups of the fixing rod 213 are symmetrically designed, the fixing rod 213 rotates to enable the connecting shaft 218 to be driven by the connecting frame 217 to rotate, the connecting shaft 218 drives the concave frame 2193 and the coarse screen frame 214 to move left and right, so that pulverized coal entering the coarse screen frame 214 and positioned at the top of the screening plate 2194 can be screened, when the coarse screen frame moves left and right, the first connecting seat 219 drives the supporting shaft 2191 to move left and right, the top of the supporting shaft 2191 moves left and right in the second connecting seat 2192, the coarse screen frame 214 and the screening plate 2194 can be guaranteed to be stable, the coarse screen frame 214 and the screening plate 2194 are different in diameter and are obliquely arranged, different particles can be separated preliminarily, and the different particles can fall into the screening plate 2195;
The auger 2197 fixedly connected with the periphery of the rotary rod 2196 is driven to rotate by the first servo motor 215, so that coal dust with larger granularity can be discharged through the material guiding frame 2198 and enters into the collecting equipment to be discharged, the granular coal dust smaller than the mesh holes in the screening plate 2194 can enter into the inner side bottom of the coarse screen frame 214, when the granular coal dust is smaller than the mesh holes in the bottom of the coarse screen hole, the granular coal dust can enter into the fine screen frame 32, and the coal dust at the inner side bottom of the coarse screen frame 214 can enter into the collecting equipment to be stored through the right side;
When crushed coal dust enters the fine screen frame 32 through the coarse screen frame 214 and the screening plate 2194, the fine screen frame 32 is in sliding connection through the limiting frame 31, the rotating disc 36 and the connecting rod 35 are driven to rotate through the third servo motor 37, the connecting rod 35 drives the driving arm 34 and the connecting frame 33 to move left and right, the connecting frame 33 can drive the fine screen frame 32 to move left and right in the limiting frame 31, further screening is carried out on the coal dust, the left and right movement amplitude of the fine screen frame 32 is flexibly adjusted through adjusting parameters such as the rotating speed of the third servo motor 37, so that the screening requirements of the coal dust with different properties and different granularity ranges are met, the adaptability of equipment to different working conditions is enhanced, the application range of the equipment is enlarged, and the screened coal dust can fall into the storage box 5 for storage, because the bottom of the inner side of the fine screen frame 32 is inclined, impurities or the coal dust which is not in accordance with the inaccuracy can be discharged through the right side of the fine screen frame 32, the subsequent multi-stage screening can be realized, and the subsequent production quality and the purity of the coal dust can be improved;
when the device is used, the first servo motor 215, the second servo motor 221 and the third servo motor 37 are required to be simultaneously connected into a PLC control system, so that the cooperation and synchronous operation of the devices are ensured, the PLC control system is the prior art, the specific operation steps and methods of the system are clearly known to the person skilled in the art, and the device is not described in detail.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. 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 screening equipment with the multi-stage separation function for preparing the pulverized coal comprises a base and is characterized in that a first screening mechanism is arranged at the top of the base, a second screening mechanism is arranged on the inner side of the first screening mechanism, a storage box is connected inside the base in a sliding manner, and a protection mechanism is arranged on the front side of the first screening mechanism;
the first screening mechanism comprises a screening component and a feeding component, the screening component is arranged at the top of the supporting table, and the feeding component is arranged at the top of the screening component;
The screening assembly comprises a fixing frame, fixing frame fixedly connected with base top, fixing frame left side fixedly connected with bearing frame, fixedly connected with bearing in the bearing frame bearing, fixedly connected with dead lever in the bearing, dead lever rear side fixedly connected with link, the peripheral rotation of link is connected with the connecting axle, the peripheral rotation of connecting axle right-hand member is connected with the spill frame, spill frame top fixedly connected with coarse screen frame, both sides fixedly connected with first connecting seat around the coarse screen frame, the peripheral rotation in first connecting seat top is connected with the back shaft, the inboard rotation in back shaft top is connected with the second connecting seat, second connecting seat fixedly connected with in the inboard top of fixing frame, the inboard fixedly connected with screening plate of coarse screen frame, screening plate right side fixedly connected with collects the frame, it is inboard to collect the frame fixedly connected with coarse screen frame, coarse screen frame front side fixedly connected with first servo motor, first servo motor rear side fixedly connected with dwang, the dwang rotates to be connected with coarse screen frame and collects the frame inside, the peripheral fixedly connected with auger frame of coarse screen frame.
2. The screening device with the multi-stage separation function for preparing coal dust according to claim 1, wherein the two groups of the bearing seat, the needle bearing and the fixing rod are symmetrically distributed on the left side of the fixing frame and are respectively positioned on the front side and the rear side of the connecting frame.
3. The screening device with multistage separation function for coal dust preparation of claim 1, wherein the screening holes are respectively formed in the bottom of the coarse screen frame and the inside of the screening plate, the diameter of the screening holes in the screening plate is larger than that of the screening holes in the bottom of the coarse screen frame, the rear side of the coarse screen frame is provided with a discharge chute, and the guide frame is positioned at the rear side of the discharge chute, and the coarse screen frame and the screening plate are obliquely arranged.
4. The screening device with multistage separation function for coal dust preparation, according to claim 1, is characterized in that the feeding component comprises a second servo motor, the second servo motor is fixedly connected to the top of a fixed frame, the front side of the servo motor is fixedly connected with a first rotating shaft, the periphery of the first rotating shaft is rotatably connected with a supporting plate, the supporting plate is fixedly connected to the top of the fixed frame, the periphery of the first shaft is fixedly connected with a first sprocket, the periphery of the first sprocket is meshed with a first chain, the inner side of the first chain is meshed with a sprocket group, the sprocket group is fixedly connected to the periphery of a fixed rod, the periphery of the sprocket group is meshed with a second chain, the inner side of the second chain is meshed with a second sprocket, the inner side of the second sprocket is fixedly connected with a second rotating shaft, the periphery of the second rotating shaft is rotatably connected with a conveying box, the periphery of the stirring shaft is rotatably connected to the inner side of the conveying box, the top of the conveying box is fixedly connected with a storage box, and the periphery of the storage box is fixedly connected with a bracket.
5. The screening device for preparing pulverized coal with multi-stage separation function according to claim 4, wherein the periphery of the stirring shaft is in contact with the inner side of the conveying box, and the right side of the conveying box is positioned at the top of the coarse screen frame.
6. The screening device with multistage separation function for pulverized coal preparation according to claim 4, wherein the periphery of the conveying box is fixedly connected with a mounting frame, the mounting frame is fixedly connected to the top of the left side of the mounting frame, and the support is fixedly connected to the top of the left side of the mounting frame.
7. The screening device with multistage separation function for coal dust preparation of claim 1, wherein the second screening mechanism comprises a limiting frame, the limiting frame is fixedly connected to the front side and the rear side in a fixing frame, the inner side of the limiting frame is slidably connected with a fine screen frame, the left side of the fine screen frame is fixedly connected with a connecting frame, the inner side of the connecting frame is rotationally connected with a driving arm, the inner side of the left end of the driving arm is rotationally connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a rotating disc, the bottom of the rotating disc is fixedly connected with a driving shaft, the periphery of the driving shaft is rotationally connected with a supporting table, the supporting table is fixedly connected to the bottom of the left side of the fixing frame, the bottom of the driving shaft is fixedly connected with a third servo motor, and the third servo motor is fixedly connected to the inner side of the supporting table.
8. The screening device with multistage separation function for pulverized coal preparation according to claim 7, wherein the fine screen frame is internally provided with screen holes, the diameter of the screen holes is smaller than that of the bottom of the coarse screen frame, and the fine screen frame is positioned at the bottom of the coarse screen frame and at the top of the storage box.
9. The screening device with multistage separation function for pulverized coal preparation according to claim 1, wherein the protection mechanism comprises a fixed frame, the fixed frame is fixedly connected to the top of the front side of the fixed frame, a protective cover is slidably connected inside the fixed frame, a first fixed shaft is connected inside the protective cover in a threaded manner, a fixed table is slidably connected to the bottom of the protective cover, the fixed table is fixedly connected to the bottom of the front side of the fixed frame, and a second fixed shaft is connected inside the fixed table in a threaded manner.
10. The screening device with multistage separation function for pulverized coal preparation according to claim 9, wherein the first fixing shaft and the second fixing shaft penetrate through the fixing frame and the protective cover respectively, the front side of the protective cover is concave, the protective cover is slidably connected to the first rotating shaft, the second rotating shaft and the periphery of the fixing rod, and the inner side of the protective cover is positioned at the rear sides of the first sprocket, the sprocket set and the second sprocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511018728.1A CN120618851A (en) | 2025-07-23 | 2025-07-23 | A screening device for coal powder preparation with multi-stage sorting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511018728.1A CN120618851A (en) | 2025-07-23 | 2025-07-23 | A screening device for coal powder preparation with multi-stage sorting function |
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| CN120618851A true CN120618851A (en) | 2025-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202511018728.1A Pending CN120618851A (en) | 2025-07-23 | 2025-07-23 | A screening device for coal powder preparation with multi-stage sorting function |
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| CN221908252U (en) * | 2024-02-20 | 2024-10-29 | 天津海关化矿金属材料检测中心 | Coal grade judging coal separator |
| CN221934044U (en) * | 2024-02-22 | 2024-11-01 | 山东艾特智能技术有限公司 | An intelligent auxiliary mine dressing device |
| CN222306447U (en) * | 2024-06-13 | 2025-01-07 | 浙江明德建设有限公司 | Concrete mortar screening equipment for highway engineering construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112718464A (en) * | 2021-01-12 | 2021-04-30 | 宋鑫 | Coal deep-processing is with multistage sieving mechanism of buggy |
| CN215029566U (en) * | 2021-04-20 | 2021-12-07 | 湖北天瓷电子材料有限公司 | Screening device with multi-stage screening function for grinding porcelain powder |
| CN115228722A (en) * | 2022-07-20 | 2022-10-25 | 定南九鼎牧业有限公司 | A granule sieving mechanism for pig feed production |
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