CN118455064A - Coal sorting equipment for coal mining - Google Patents
Coal sorting equipment for coal mining Download PDFInfo
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- CN118455064A CN118455064A CN202410673089.1A CN202410673089A CN118455064A CN 118455064 A CN118455064 A CN 118455064A CN 202410673089 A CN202410673089 A CN 202410673089A CN 118455064 A CN118455064 A CN 118455064A
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- Prior art keywords
- fixedly connected
- cylinder
- plate
- coal
- screening
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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
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/24—Revolving drums with fixed or moving interior agitators
-
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/526—Cleaning with brushes or scrapers with scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/50—Ducting arrangements from the source of air or other gases to the materials or objects being dried
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the field of coal sorting equipment, in particular to coal sorting equipment for coal mining, aiming at the problem that a grading screen mesh adopted at present in the prior art is easy to block, the invention provides the coal sorting equipment for coal mining, a hollow plate which can move up and down synchronously with a grading screen cylinder is arranged on the upper side of the surface of the grading screen cylinder, the upper end of the hollow plate is connected with a pressurizing device and an inflating device, gas can act on the surface of the grading screen cylinder after the inflating device inflates the inner side of the hollow plate, the wet gas of raw coal can be reduced under the condition of gas injection, the situation that raw coal is mutually adhered to cause the separation sieve pore to be blocked due to heavy moisture is reduced, the separation sieve cylinder can drive the supercharging equipment to carry out pulse supercharging to the inside of the hollow plate while rotating and moving up and down, the gas injection force is increased, the raw coal in the separation sieve pore can be separated from the separation sieve pore under the action of the instantaneously increased air pressure, and the effect of cleaning the separation sieve pore by gas is effectively improved.
Description
Technical Field
The invention relates to the field of coal separation equipment, in particular to coal separation equipment for coal mining.
Background
Coal is taken as an important energy source in China, and accounts for 75% of primary energy sources; raw coal is mixed with various mineral impurities in the production process, and rock and other impurities are inevitably mixed in the mining and transportation processes; raw coal quality is poorer and worse along with the improvement of coal mining mechanization degree and the change of geological conditions; impurities in raw coal are removed through coal dressing, so that ash content and sulfur content of coal are reduced, and quality of the raw coal is improved; the coal preparation method can be summarized into dry coal preparation and wet coal preparation, raw coal is usually required to be crushed and screened through equipment during coal preparation, large-particle coal blocks and fine-particle coal blocks are separated according to the granularity and density difference of the coal, later separation operation is convenient, at present, when raw coal is screened and classified, the water content and the mud content of raw coal in a coal preparation plant are relatively high, so that liquid levels of particles containing surface water can be spontaneously combined to form a liquid bridge when the particles are contacted with each other, particle aggregation and adhesion on a screen surface are promoted, and an adopted classification screen is easy to block, so that the working efficiency is seriously influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides coal sorting equipment for coal mining, which effectively solves the problems in the background art.
The technical scheme adopted by the invention for solving the problems is as follows:
The coal sorting equipment for coal mining comprises a shell, wherein an outlet is formed in the lower end of the shell, and a screening device is arranged in the shell; the screening device comprises a feeding cylinder, a connecting frame, a screening cylinder and a screw rod, wherein the connecting frame is rotationally connected to the right end of the feeding cylinder, the screening cylinder is fixedly connected to the inside of the connecting frame, the screw rod is rotationally connected to the inside of the screening cylinder and can rotate, a plurality of sections of screening areas are arranged on the surface of the screening cylinder, screening holes are respectively formed in the surface of the screening cylinder of each section of screening area, the size of each section of screening area can be sequentially increased from back to front, and a driving device for driving the connecting frame to rotate is arranged at the front end of the connecting frame;
The front side and the rear side of the surface of the connecting frame are respectively and rotatably connected with connecting rings capable of moving up and down, the connecting rings are vertically and slidably connected with the inner wall of the shell, the circumferential surfaces of the connecting frame are respectively and fixedly connected with cams, the lower sides of the cams are respectively and coaxially provided with a base, and the connecting frame can be driven to reciprocate up and down by pushing the cams against the base when the connecting frame rotates;
The upper side of the surface of the screening cylinder is provided with a hollow plate which can move up and down synchronously with the screening cylinder, the bottom of the hollow plate is fixedly connected with a scraping plate, the scraping plate is in surface contact with the screening cylinder, the positions of the bottom of the hollow plate, which are positioned at the two sides of the scraping plate, are respectively fixedly connected and communicated with a plurality of air outlet valves which are arranged along the axial direction of the screening cylinder and can only give out air unidirectionally, the upper end of the hollow plate is connected with a pressurizing device and an inflating device, and the inflating device inflates the inner side of the hollow plate and then gas is sprayed to the surface of the screening cylinder through the air outlet valves.
Preferably, the pressurizing device comprises a pressurizing cylinder and a pressurizing plate which is slidably connected inside the pressurizing cylinder, the pressurizing cylinder can be used for one-way inflation of the interior of the hollow plate, the middle part of the upper end of the pressurizing plate is fixedly connected with a pressurizing rod, the middle part of the upper end of the pressurizing rod is slidably connected with the middle part of the upper end of the pressurizing cylinder, a transmission part is connected between the hollow plate and the pressurizing rod, the pressurizing rod is driven to move up and down through the transmission part by moving up and down on the hollow plate, the pressurizing plate is pushed to move up and down inside the pressurizing cylinder to one-way inflation of the interior of the hollow plate, and the pressurizing device is used for pulse pressurizing the interior of the hollow plate when the screening cylinder rotates and moves up and down.
Preferably, the driving device comprises a driving motor fixedly connected to the front end inside the shell, the output end of the driving motor is fixedly connected with a second driving bevel gear, the rear side of the second driving bevel gear is meshed with a first driving bevel gear, the middle part of the first driving bevel gear is fixedly connected with a spline shaft, the bottom of the spline shaft is rotationally connected with the inner wall of the shell, the upper side spline of the surface of the spline shaft is connected with a spline cylinder, the upper end of the spline cylinder is fixedly connected with a second driving bevel gear, the middle part of the front end of the cam is fixedly connected with a first driving bevel gear, the first driving bevel gear is meshed with the second driving bevel gear, the rear side of the first driving bevel gear is rotationally connected with a connecting shaft plate, and the lower side of the connecting shaft plate is rotationally connected with the surface of the spline cylinder.
Preferably, both ends are sliding connection has the gag lever post respectively about the go-between, the upper and lower both ends of gag lever post respectively with shell inner wall fixed connection, the upper end of go-between is fixedly connected with a connection frid respectively, the fixed surface of pressure boost section of thick bamboo is connected with a mounting panel, both ends and shell fixed surface are connected respectively around the mounting panel, both ends are fixedly connected with slide respectively around the mounting panel bottom, rectangular opening has been seted up to the surface upside of shell, the slide lower extreme can get into inside the shell through rectangular opening, the slide lower extreme extends to the shell inside and the slide downside respectively with connect frid sliding connection.
Preferably, the upper end of the hollow plate is fixedly connected with a first three-way pipe, the hollow plate is communicated with the first three-way pipe, the upper end opening of the first three-way pipe is fixedly connected with a second one-way valve, the upper end of the second one-way valve is fixedly connected with a second three-way pipe, one side opening of the second three-way pipe is fixedly connected with a first one-way valve, the upper end opening of the second three-way pipe is fixedly connected with a second guide pipe, and the upper end of the second guide pipe is fixedly connected and communicated with the bottom of the booster cylinder;
The transmission part comprises first hinging rods positioned at the front side and the rear side of the pressurizing cylinder, the upper ends of the first hinging rods are respectively hinged with the bottom of the mounting plate, the lower ends of the first hinging rods are respectively hinged with first sliding blocks, the front side and the rear side of the upper end of the hollow plate are respectively provided with first sliding grooves, the first sliding blocks are respectively connected with the first sliding grooves in a sliding mode, the front side and the rear side of the bottom of the mounting plate are respectively provided with second sliding grooves, the inside of each second sliding groove is respectively connected with a second sliding block in a sliding mode, the outer sides of the first hinging rods are respectively hinged with second hinging rods, the other ends of the second hinging rods are respectively hinged with the second sliding blocks, the outer ends of the second sliding blocks are respectively fixedly connected with supporting springs, and the other ends of the supporting springs are respectively fixedly connected with the inner walls of the second sliding grooves; the upper end fixedly connected with connecting plate of the pressure-increasing pole, both sides lower extreme and mounting panel upper and lower sliding connection of connecting plate, both sides surface of connecting plate fixedly connected with respectively one connect the rack, first articulated pole upper end is with axle center fixedly connected with interlock gear respectively, interlock gear meshes with the connection rack respectively.
Preferably, the surface of the cam is provided with a plurality of bulges, the upper end of the base is provided with an arc groove attached to an arc part between the two bulges on the surface of the cam, and the left end and the right end of the base are respectively provided with inclined planes which incline downwards.
Preferably, the screw rod comprises a central rod and screw blades fixedly connected to the surface of the central rod, the front end of the screening cylinder is rotationally connected with a closed cover, the rear end of the central rod is rotationally connected with the lower side of the rear end of the shell, the front end of the central rod is rotationally connected with the lower side of the front end of the closed cover, the front end of the central rod is fixedly connected with a matched gear, an inner gear ring is meshed with the outer side of the matched gear, the inner gear ring is arranged coaxially with the screening cylinder, the inner gear ring is fixedly connected with the connecting frame, and the screw rod can be driven to rotate through the meshing of the inner gear ring and the matched gear when the connecting frame rotates.
Preferably, the upper end fixedly connected with bellows of feed cylinder, the upside of shell has seted up one and has been used for the bellows to upwards extend hold the mouth, and the bellows upwards extends and the upper end fixedly connected with feed inlet of bellows through holding the mouth, and both ends are fixedly connected with support respectively around the feed inlet, the lower extreme of support respectively with shell surface fixed connection.
The invention has novel structure, ingenious conception and simple and convenient operation, and has the following advantages compared with the prior art:
1. The connecting frame can move up and down when rotating, meanwhile, the screening cylinder is driven to rotate and move up and down, the screening efficiency of raw coal can be improved when the screening cylinder rotates, the blocking of screening holes caused by the accumulation of raw coal can be avoided, raw coal can be screened in the moving process through the rotation and up and down movement of the screening cylinder, the raw coal is dispersed for screening, and the screening effect of raw coal can be effectively improved;
2. when the separation screen drum rotates, the scraping plate can scrape raw coal powder adhered to the surface of the separation screen drum, so that the raw coal powder is prevented from accumulating, the raw coal on the inner side of the separation screen holes on the surface of the separation screen drum is blown away by gas sprayed by the air charging equipment, the moisture of the raw coal can be reduced under the condition of gas spraying, the drying efficiency of the raw coal is accelerated, and the situation that the separation screen holes are blocked due to the fact that the raw coal is mutually adhered due to heavy moisture is reduced;
3. The pressurizing device can be driven to pulse the pressurizing device to the inside of the hollow plate when the separating screen cylinder rotates and moves up and down, so that the gas in the pressurizing cylinder continuously pressurizes the inside of the hollow plate downwards when the separating screen cylinder moves up and down, the gas sprayed out of the gas outlet valve intermittently increases the gas pressure, the gas spraying force is increased, raw coal in the separating screen holes can be separated from the separating screen holes under the action of the instantaneously increased gas pressure, and the effect of cleaning the separating screen holes by the gas is effectively improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a coal mining coal separation apparatus of the present invention.
Fig. 2 is a schematic sectional view of the internal structure of a housing of a coal mining coal separation device of the present invention.
Fig. 3 is a schematic view of a connecting ring installation structure of coal mining coal separation equipment of the invention.
Fig. 4 is a partial enlarged view of a first tee mounting structure of a coal mining coal sorting apparatus of the present invention.
Fig. 5 is a schematic diagram of a scraper structure of a coal mining coal separation device according to the present invention.
Fig. 6 is an enlarged partial schematic view of a scraper mounting structure of a coal mining coal sorting apparatus of the present invention.
Fig. 7 is a schematic diagram of an air outlet valve installation structure of coal mining coal separation equipment according to the invention.
Fig. 8 is an enlarged partial schematic view of an air outlet valve mounting structure of a coal mining coal sorting apparatus of the present invention.
Fig. 9 is a schematic cross-sectional view of the gas outlet valve structure of the coal mining coal sorting apparatus of the present invention.
Fig. 10 is a schematic diagram of a driving structure of a coal mining apparatus for coal mining according to the present invention.
Fig. 11 is an enlarged schematic view of a driving structure of a coal mining apparatus for coal mining according to the present invention.
Fig. 12 is a schematic view of a cam mounting structure of a coal mining coal sorting apparatus of the present invention.
Fig. 13 is a schematic diagram of the structure of the transmission components of the coal mining and sorting equipment for coal mining.
Fig. 14 is an enlarged partial schematic view of the structure of a transmission part of a coal mining coal sorting apparatus of the present invention.
Fig. 15 is a first schematic view of a screw rod mounting structure of a coal mining coal separation apparatus of the present invention.
Reference numerals in the drawings: 1-shell, 2-discharging frame, 3-feeding port, 4-bellows, 5-feeding cylinder, 7-screening cylinder, 8-connecting frame, 9-hollow plate, 10-first three-way pipe, 11-first conduit, 12-inflator, 13-scraper, 14-air outlet valve, 15-valve plate, 16-valve core, 17-return spring, 18-cam, 19-first transmission bevel gear, 20-second transmission bevel gear, 21-connecting shaft plate, 22-spline cylinder, 23-spline shaft, 24-first driving bevel gear, 25-second driving bevel gear, 26-driving motor, 27-connecting ring, 28-limit rod, 29-connecting groove plate, 30-slide plate, 31-mounting plate, 32-pressurizing cylinder, 33-pressurizing plate, 34-pressurizing rod, 36-first hinging rod, 37-second hinging rod, 38-first slide block, 39-second slide block, 40-supporting spring, 41-connecting plate, 42-connecting rack, 43-driving gear, 44-second conduit, 45-second third conduit, 45-third valve, 46-third conduit, 47-third valve, 47-spiral gear, 60-sealing ring, and one-way valve, and one-way cover.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
1-15, The invention provides coal sorting equipment for coal mining, which comprises a shell 1, wherein an outlet is formed in the lower end of the shell 1, and screening equipment is arranged in the shell 1; the screening device comprises a feeding cylinder 5, a connecting frame 8 rotatably connected to the right end of the feeding cylinder 5, a screening cylinder 7 fixedly connected to the inside of the connecting frame 8 and a spiral rod 54 rotatably connected to the inside of the screening cylinder 7, wherein the surface of the screening cylinder 7 is provided with a plurality of sections of screening areas, the surface of the screening cylinder 7 of each section of screening area is respectively provided with a screening hole, the size of each section of screening area can be sequentially increased from back to front, and the front end of the connecting frame 8 is provided with a driving device for driving the connecting frame 8 to rotate;
when the device is used, raw coal is crushed and then enters the screening equipment through the feeding cylinder 5, screening is carried out through the screening cylinder 7, the sizes of the screening holes of each screening area are respectively different, the sizes of the screening holes are sequentially increased from back to front, the screening cylinder 7 can screen raw coal with different sizes, the raw coal is driven to move towards the front side of the screening cylinder 7 under the rotation of the screw rod 54 after entering the feeding cylinder 5, and the screening is carried out through the screening cylinder 7; the connecting frame 8 comprises annular frames positioned at the front side and the rear side and side plates fixedly connected to the left side and the right side of the inner sides of the two annular frames, the separating drum 7 can be driven to rotate when the connecting frame 8 rotates, the separating efficiency of raw coal can be improved when the separating drum 7 rotates, the raw coal can be prevented from being accumulated to cause blocking of separating holes, raw coal can be separated and sieved in the moving process through the rotation of the separating drum 7, the separating effect of raw coal can be effectively improved, the separating drum 7 rotates, raw coal blocks which can be screened out through small holes can be screened out when the separating drum 7 rotates, materials which can be reserved in the separating drum 7 cannot be screened out through small holes, the materials which can pass through small holes can be screened out through the large raw coal blocks can not be separated through small holes on the rear side in the moving process of the raw coal blocks when the raw coal blocks advance, and the raw coal blocks can only pass through the corresponding screening holes can be reserved in the separating drum; when the coal separating device is used, the connecting frame 8 can be driven to rotate through the driving equipment, the separating screen drum 7 is driven to rotate while the connecting frame 8 rotates, the discharging frame 2 is fixedly connected to the outlet of the lower end of the shell 1, the upper end of the discharging frame 2 is matched with the separating screen equipment, and raw coal separated and screened out can flow out conveniently;
Further, referring to fig. 7 and 8, in order to improve screening efficiency of the screening drum 7, front and rear sides of the surface of the connection frame 8 are respectively rotatably connected with a connection ring 27 capable of moving up and down, the connection ring 27 is vertically and slidably connected with the inner wall of the housing 1, the connection ring 27 is used for supporting screening equipment, the circumferential surface of the connection frame 8 is respectively fixedly connected with a cam 18, the lower sides of the cams 18 are respectively coaxially provided with a base 59, as shown in fig. 2, the base 59 is fixed in the housing 1, the cams 18 can drive the connection frame 8 to synchronously rotate when rotating, the connection frame 8 can be driven to reciprocate up and down by pushing the base 59 by the cams 18 when rotating the connection frame 8, raw coal in the screening drum 7 can be driven to jump in the screening drum 7 when the connection frame 8 moves up and down, further raw coal stacking is avoided, and the condition of blocking of screening holes is reduced;
Further, in order to avoid the situation that the sub-screen drum 7 is blocked, referring to fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8 and fig. 9, a hollow plate 9 capable of moving up and down synchronously with the sub-screen drum 7 is arranged on the upper side of the surface of the sub-screen drum 7, a scraper 13 is fixedly connected to the bottom of the hollow plate 9, the scraper 13 contacts with the surface of the sub-screen drum 7, when the sub-screen drum 7 rotates, the scraper 13 can scrape raw coal powder adhered to the surface of the sub-screen drum 7, the raw coal powder is prevented from accumulating, the positions of the bottom of the hollow plate 9 on two sides of the scraper 13 are respectively fixedly connected and communicated with a plurality of air outlet valves 14 which are arranged along the axial direction of the sub-screen drum 7 and can only perform one-way air outlet, the upper end of the hollow plate 9 is connected with a pressurizing device and an inflating device, air is sprayed to the surface of the sub-screen drum 7 through the air outlet valves 14, the air sprayed out from the inflating device blows the air to the surface of the sub-screen drum 7, and under the condition that the air sprayed out from the inflating device blows the air to the surface of the sub-screen drum 7, the raw coal on the inner side of the sieve holes, the surface of the raw coal can be scraped, the raw coal powder adhered to the surface, the raw coal powder is avoided, the raw coal powder is accumulated, the raw coal dust is accumulated, the raw coal is accelerated, the raw coal drying efficiency is accelerated, the raw coal is reduced, the raw coal is and the raw coal is blocked due to the situation that the mutual moisture is caused by the fact that the moisture and the situation that the fact that the split coal is more is blocked; the pressurizing device comprises a pressurizing cylinder 32 and a pressurizing plate 33 which is slidably connected inside the pressurizing cylinder 32, the pressurizing cylinder 32 can unidirectionally inflate the inside of the hollow plate 9, a pressurizing rod 34 is fixedly connected to the middle part of the upper end of the pressurizing plate 33, the pressurizing rod 34 is slidably connected with the middle part of the upper end of the pressurizing cylinder 32, a transmission part is connected between the hollow plate 9 and the pressurizing rod 34, the pressurizing rod 34 is driven to move up and down by the transmission part when the hollow plate 9 moves up and down, the pressurizing plate 33 is pushed to move up and down inside the pressurizing cylinder 32 to unidirectionally inflate the inside of the hollow plate 9, the pressurizing device is used for pulsing pressurizing the inside of the hollow plate 9 while the screening cylinder 7 rotates and moves up and down, the gas sprayed out of the gas outlet valve 14 intermittently increases the gas pressure, the strength of the gas sprayed out is increased, raw coal in the screening holes can be separated from the screening holes under the action of the instantaneously increased gas pressure, and the effect of cleaning the screening holes is effectively improved; the air outlet valve 14 comprises a valve body with an upper opening and a lower opening, an air outlet at the lower end of the valve body is smaller than an air inlet at the upper end of the valve body, the strength of air sprayed out through the air outlet valve 14 is further improved by reducing the air outlet, a valve plate 15 capable of moving up and down is axially and slidably connected in the valve body, a valve core 16 is fixedly connected to the upper end of the valve plate 15, the valve core 16 is matched with the air inlet, a return spring 17 is fixedly connected to the bottom of the valve plate 15, the lower end of the return spring 17 is fixedly connected with the inner wall of the valve body, when the supercharging equipment supercharges the inside of the hollow plate 9, the air in the hollow plate 9 pushes the valve core 16 to move downwards, so that the valve core 16 is separated from the air inlet, the air inlet is not blocked any more, the air can be sprayed out through the air outlet, and the air core 16 can be reset under the pushing of the return spring 17 after the air pressure disappears, and the air can be conveniently used by a user.
Referring to fig. 10 and 11, the driving apparatus includes a driving motor 26 fixedly connected to the front end of the inside of the housing 1, a second driving bevel gear 25 fixedly connected to the output end of the driving motor 26, a first driving bevel gear 24 engaged with the rear side of the second driving bevel gear 25, a spline shaft 23 fixedly connected to the middle of the first driving bevel gear 24, the bottom of the spline shaft 23 rotatably connected to the inner wall of the housing 1, a spline cylinder 22 spline-connected to the upper side of the surface of the spline shaft 23, a second driving bevel gear 20 fixedly connected to the upper end of the spline cylinder 22, a first driving bevel gear 19 fixedly connected to the middle of the front end of the cam 18, the first driving bevel gear 19 engaged with the second driving bevel gear 20, a connecting plate 21 rotatably connected to the rear side of the first driving bevel gear 19, the lower side of the connecting plate 21 rotatably connected to the surface of the spline cylinder 22, the driving motor 26 is used for driving the connecting frame 8 to rotate, the second driving bevel gear 25 can be driven to rotate when the driving motor 26 rotates, the spline shaft 23 can be driven to rotate under the meshing of the second driving bevel gear 25 and the first driving bevel gear 24, the second transmission bevel gear 20 can be driven to rotate under the action of spline connection with the spline cylinder 22 when the spline shaft 23 rotates, then the cam 18 can be driven to rotate under the meshing of the second transmission bevel gear 20 and the first transmission bevel gear 19, the connecting frame 8 is further driven to rotate, the effect of driving the screening cylinder 7 to rotate is further achieved, the spline cylinder 22 and the connecting frame 8 can be kept in linkage under the action of the connecting shaft plate 21, the spline cylinder 22 can be driven to synchronously move when the connecting frame 8 moves up and down, the transmission of the first transmission bevel gear 19 and the second transmission bevel gear 20 is maintained, under the spline transmission of the spline shaft 23 and the spline cylinder 22, the spline cylinder 22 can slide on the surface of the spline shaft 23, and meanwhile, the transmission effect of the spline shaft 23 and the spline cylinder 22 is not affected.
Referring to fig. 13 and 14, the left and right ends of the connecting ring 27 are respectively slidably connected with a limiting rod 28, the upper and lower ends of the limiting rod 28 are respectively fixedly connected with the inner wall of the housing 1, the connecting ring 27 is used for supporting the connecting frame 8 to rotate, the limiting rod 28 is used for supporting the connecting ring 27 to move up and down, and further, the effect of driving the connecting frame 8 to move up and down is achieved, the upper end of the connecting ring 27 is respectively fixedly connected with a connecting groove plate 29, the surface of the pressurizing cylinder 32 is fixedly connected with a mounting plate 31, the front and rear ends of the mounting plate 31 are respectively fixedly connected with the surface of the housing 1, the front and rear ends of the bottom of the mounting plate 31 are respectively fixedly connected with a sliding plate 30, a rectangular opening is formed in the upper side of the surface of the housing 1, the lower end of the sliding plate 30 can enter the housing 1 through the rectangular opening, the lower end of the sliding plate 30 extends into the housing 1 and the lower side of the sliding plate 30 is respectively slidably connected with the connecting groove plate 29, and the stability of the up and down movement of the connecting frame 8 can be further improved under the action of the sliding connection of the sliding plate 30 and the connecting groove plate 29.
Referring to fig. 13 and 14, the upper end of the hollow plate 9 is fixedly connected with a first three-way pipe 10, the hollow plate 9 is communicated with the first three-way pipe 10, the upper end opening of the first three-way pipe 10 is fixedly connected with a second one-way valve 47, the upper end of the second one-way valve 47 is fixedly connected with a second three-way pipe 45, one side opening of the second three-way pipe 45 is fixedly connected with a first one-way valve 46, the upper end opening of the second three-way pipe 45 is fixedly connected with a second conduit 44, the upper end of the second conduit 44 is fixedly connected and communicated with the bottom of the booster tube 32, the air charging device comprises an air charging pump 12 capable of charging, the output end of the air charging pump 12 is fixedly connected with a first conduit 11, the other end of the first conduit 11 is fixedly connected with the rear side opening of the first three-way pipe 10, the inflator 12 can convey gas to the hollow plate 9 through the first conduit 11 and the first tee 10, the second conduit 44 and the second tee 45 are used for providing a channel for gas circulation of the booster cylinder 32, wherein the first check valve 46 can only perform one-way air intake, the second check valve 47 can only perform one-way air exhaust, the second check valve 47 can be closed when the valve plate 15 moves upwards, the negative pressure generated inside the booster cylinder 32 can attract the first check valve 46 to open, external gas enters the booster cylinder 32 through the first check valve 46 under the action of the negative pressure attraction inside the booster cylinder 32, then the first check valve 46 is closed when the valve plate 15 moves downwards, the gas inside the booster cylinder 32 pushes the second check valve 47 away, and then the gas inside the booster cylinder 32 is pushed into the hollow plate 9 to increase the air pressure inside the hollow plate 9;
The transmission part comprises a first hinging rod 36 positioned at the front side and the rear side of the pressurizing cylinder 32, the upper end of the first hinging rod 36 is hinged with the bottom of the mounting plate 31 respectively, the lower end of the first hinging rod 36 is hinged with a first sliding block 38 respectively, the front side and the rear side of the upper end of the hollow plate 9 are respectively provided with a first sliding groove, the first sliding block 38 is respectively in sliding connection with the first sliding groove, the front side and the rear side of the bottom of the mounting plate 31 are respectively provided with a second sliding groove, the inside of the second sliding groove is respectively in sliding connection with a second sliding block 39, the outer side of the first hinging rod 36 is respectively hinged with a second hinging rod 37, the other end of the second hinging rod 37 is respectively hinged with the second sliding block 39, the outer end of the second sliding block 39 is respectively fixedly connected with a supporting spring 40, and the other end of the supporting spring 40 is respectively fixedly connected with the inner wall of the second sliding groove; the upper end of the pressure increasing rod 34 is fixedly connected with a connecting plate 41, the lower ends of two sides of the connecting plate 41 are connected with the mounting plate 31 in a vertical sliding way, the surfaces of two sides of the connecting plate 41 are respectively fixedly connected with a connecting rack 42, the upper end of the first hinging rod 36 is respectively coaxially and fixedly connected with a linkage gear 43, and the linkage gears 43 are respectively meshed with the connecting racks 42; when the sub-sieve cylinder 7 moves upwards, the hollow plate 9 can be pushed to move upwards by the scraping plate 13, when the hollow plate 9 moves upwards, the first sliding blocks 38 respectively slide outwards and drive the first hinging rods 36 to swing outwards by taking the upper ends as the centers, when the first hinging rods 36 swing outwards, the linkage gears 43 can be driven to rotate and drive the connecting plates 41 to move downwards through the meshing of the linkage gears 43 and the connecting racks 42, then the pressurizing plates 33 are driven to move downwards by the transmission of the pressurizing rods 34 to push out the gas inside the pressurizing cylinder 32, when the first hinging rods 36 swing outwards, the second sliding blocks 39 can be pushed to move outwards and squeeze the supporting springs 40 by the transmission of the second hinging rods 37, then when the sub-sieve cylinder 7 moves downwards, the pushing force of the hollow plate 9 disappears, the two second sliding blocks 39 move inwards to reset by the pushing lower sides of the supporting springs 40, and then the first hinging rods 36 swing inwards to reset under the linkage effect, and the meshing of the linkage gears 43 and the connecting racks 42 drive the pressurizing plates 33 to move upwards, when the pressurizing plates 33 move upwards, the negative pressure generated inside the pressurizing plates 32 to enter the pressurizing cylinders 32 to the hollow plate 32, and the hollow plate 32 can absorb the air into the hollow plate 9 when the hollow plate 9 to move upwards, and the hollow plate 32 can be sucked into the hollow cylinder 9.
Referring to fig. 12, a plurality of protrusions are provided on the surface of the cam 18, an arc groove attached to an arc portion between two protrusions on the surface of the cam 18 is provided at the upper end of the base 59, when the cam 18 rotates, the cam 18 can be stably rotated by sliding fit between the arc groove on the upper side of the base 59 and the arc portion on the circumferential surface of the cam 18, inclined planes inclined downward are provided at the left and right ends of the base 59 respectively, when the cam 18 rotates, the protrusions on the circumferential surface of the cam 18 conveniently drive the connection frame 8 to move upward through the cooperation with the inclined planes, and the stability of driving the connection frame 8 to reciprocate upward when the cam 18 rotates is further improved.
The screw rod 54 comprises a central rod and screw blades fixedly connected to the surface of the central rod, the front end of the screening cylinder 7 is rotationally connected with a closing cover 60, the rear end of the central rod is rotationally connected with the lower side of the rear end of the shell 1, the front end of the central rod is rotationally connected with the lower side of the front end of the closing cover 60, the front end of the central rod is fixedly connected with a matched gear 56, an inner gear ring 55 is meshed with the outer side of the matched gear 56, the inner gear ring 55 and the screening cylinder 7 are coaxially arranged, the inner gear ring 55 is fixedly connected with the connecting frame 8, and the screw rod 54 can be driven to rotate under the meshing of the inner gear ring 55 and the matched gear 56 when the connecting frame 8 rotates.
Referring to fig. 2, the upper end of the feeding cylinder 5 is fixedly connected with a corrugated pipe 4, when the connecting frame 8 moves up and down, the feeding cylinder 5 can be driven to move up and down synchronously, the corrugated pipe 4 can stretch out and draw back while the connecting frame 8 moves up and down, the connection with the feeding cylinder 5 is kept, a containing opening for the corrugated pipe 4 to extend upwards is formed in the upper side of the shell 1, the corrugated pipe 4 extends upwards through the containing opening, the upper end of the corrugated pipe 4 is fixedly connected with a feeding opening 3, the front end and the rear end of the feeding opening 3 are respectively fixedly connected with a bracket, the lower end of the bracket is respectively fixedly connected with the surface of the shell 1, raw coal fragments can enter the feeding cylinder 5 through the feeding opening 3, and raw coal screening is facilitated.
The device can enter raw coal fragments into the feeding barrel 5 through the feeding opening 3 when in use, then can drive the separation screen barrel 7 to rotate and move up and down when the driving motor 26 and drive the spiral rod 54 to rotate, can move raw coal fragments to the front side of the separation screen barrel 7 and screen out through proper separation screen holes when the spiral rod 54 rotates, can drive the raw coal fragments inside to jump when the separation screen barrel 7 moves up and down, can scrape raw coal powder deposited on the surface of the separation screen barrel 7 when in use in order to avoid blockage of the separation screen holes, can scrape the raw coal powder deposited on the surface of the separation screen barrel 7 when the separation screen barrel 7 rotates by the scraping plate 13, and can act on the separation screen barrel 7 under the action of the air charging equipment, so that the moisture of raw coal is reduced, the blockage of the separation screen holes caused by adhesion of raw coal powder is avoided, and the pressurizing equipment can pulse the surface of the separation screen barrel 7 when the separation screen barrel 7 moves up and down, the air discharging pressure is intermittently increased, the efficiency of separating screen holes is effectively avoided when the separation screen barrel 7 is blocked by wind power.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art to which the invention pertains may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. Coal sorting equipment for coal mining, which comprises a shell (1), and is characterized in that: the lower end of the shell (1) is provided with an outlet, and screening equipment is arranged in the shell (1); the screening device comprises a feeding cylinder (5), a connecting frame (8) rotatably connected to the right end of the feeding cylinder (5), a screening cylinder (7) fixedly connected to the inside of the connecting frame (8) and a spiral rod (54) rotatably connected to the inside of the screening cylinder (7), wherein the surface of the screening cylinder (7) is provided with a plurality of sections of screening areas, the surface of the screening cylinder (7) of each section of screening area is respectively provided with a screening hole, the size of each section of screening area can be sequentially increased from back to front, and the front end of the connecting frame (8) is provided with a driving device for driving the connecting frame (8) to rotate;
Connecting rings (27) capable of moving up and down are respectively and rotatably connected to the front side and the rear side of the surface of the connecting frame (8), the connecting rings (27) are vertically and slidably connected with the inner wall of the shell (1), cams (18) are respectively and fixedly connected to the circumferential surface of the connecting frame (8), a base (59) is coaxially arranged on the lower side of each cam (18), and the connecting frame (8) can be driven to reciprocate up and down by pushing the cams (18) against the base (59) when the connecting frame (8) rotates;
The upper side of the surface of the screening cylinder (7) is provided with a hollow plate (9) which can synchronously move up and down with the screening cylinder (7), the bottom of the hollow plate (9) is fixedly connected with a scraping plate (13), the scraping plate (13) is in surface contact with the screening cylinder (7), the positions of the bottoms of the hollow plate (9) which are positioned at the two sides of the scraping plate (13) are respectively fixedly connected and communicated with a plurality of air outlet valves (14) which are arranged along the axial direction of the screening cylinder (7) and can only unidirectionally air outlet, the upper end of the hollow plate (9) is connected with a pressurizing device and an inflating device, and the inflating device inflates air to the inner side of the hollow plate (9) and then the air is sprayed to the surface of the screening cylinder (7) through the air outlet valves (14).
2. A coal mining coal sorting apparatus according to claim 1, wherein: the supercharging equipment comprises a supercharging cylinder (32) and a supercharging plate (33) which is slidably connected inside the supercharging cylinder (32), the supercharging cylinder (32) can be used for unidirectional inflation inside the hollow plate (9), the middle part of the upper end of the supercharging plate (33) is fixedly connected with a supercharging rod (34), the supercharging rod (34) is slidably connected with the middle part of the upper end of the supercharging cylinder (32), a transmission part is connected between the hollow plate (9) and the supercharging rod (34), the hollow plate (9) moves up and down and drives the supercharging rod (34) to move up and down through the transmission part, the supercharging plate (33) is pushed to move up and down inside the supercharging cylinder (32) to unidirectional inflation inside the hollow plate (9), and the supercharging equipment pulsates and supercharges inside the hollow plate (9) while rotating and moving up and down.
3. A coal mining coal sorting apparatus according to claim 1, wherein: the driving device comprises a driving motor (26) fixedly connected to the front end inside the shell (1), a second driving bevel gear (25) is fixedly connected to the output end of the driving motor (26), a first driving bevel gear (24) is meshed with the rear side of the second driving bevel gear (25), a spline shaft (23) is fixedly connected to the middle of the first driving bevel gear (24), the bottom of the spline shaft (23) is rotationally connected with the inner wall of the shell (1), a spline cylinder (22) is in spline connection with the upper side of the surface of the spline shaft (23), a second driving bevel gear (20) is fixedly connected to the upper end of the spline cylinder (22), a first driving bevel gear (19) is fixedly connected to the middle of the front end of the cam (18), the first driving bevel gear (19) is meshed with the second driving bevel gear (20), a connecting shaft plate (21) is rotationally connected to the rear side of the first driving bevel gear (19), and the lower side of the connecting shaft plate (21) is rotationally connected with the surface of the spline cylinder (22).
4. A coal mining coal sorting apparatus according to claim 2, wherein: the utility model discloses a connecting ring, including shell (1) and connecting ring (27), connecting ring (27) are connected with spacing pole (28) in a sliding manner respectively, the upper and lower both ends of spacing pole (28) respectively with shell (1) inner wall fixed connection, the upper end of connecting ring (27) is fixedly connected with connection frid (29) respectively, the fixed surface of pressure boost section of thick bamboo (32) is connected with mounting panel (31), both ends are respectively with shell (1) fixed surface connection around mounting panel (31), both ends are fixedly connected with slide (30) respectively around mounting panel (31) bottom, rectangular opening has been seted up to the surface upside of shell (1), inside can get into shell 1 through rectangular opening slide (30) lower extreme, slide (30) lower extreme extends to shell (1) inside and slide (30) downside respectively with connection frid (29).
5. A coal mining coal sorting apparatus according to claim 1, wherein: the upper end of the hollow plate (9) is fixedly connected with a first three-way pipe (10), the hollow plate (9) is communicated with the first three-way pipe (10), the upper end opening of the first three-way pipe (10) is fixedly connected with a second one-way valve (47), the upper end of the second one-way valve (47) is fixedly connected with a second three-way pipe (45), one side opening of the second three-way pipe (45) is fixedly connected with a first one-way valve (46), the upper end opening of the second three-way pipe (45) is fixedly connected with a second guide pipe (44), and the upper end of the second guide pipe (44) is fixedly connected and communicated with the bottom of the booster cylinder (32);
The transmission part comprises first hinging rods (36) positioned at the front side and the rear side of the pressurizing cylinder (32), the upper ends of the first hinging rods (36) are hinged with the bottom of the mounting plate (31) respectively, the lower ends of the first hinging rods (36) are hinged with first sliding blocks (38) respectively, the front side and the rear side of the upper end of the hollow plate (9) are provided with first sliding grooves respectively, the first sliding blocks (38) are connected with the first sliding grooves in a sliding mode, the front side and the rear side of the bottom of the mounting plate (31) are provided with second sliding grooves respectively, the inner parts of the second sliding grooves are connected with second sliding blocks (39) in a sliding mode respectively, the outer sides of the first hinging rods (36) are hinged with second hinging rods (37) respectively, the other ends of the second hinging rods (37) are hinged with the second sliding blocks (39) respectively, the outer ends of the second sliding blocks (39) are fixedly connected with supporting springs (40) respectively, and the other ends of the supporting springs (40) are fixedly connected with the inner walls of the second sliding grooves respectively; the upper end of the pressure increasing rod (34) is fixedly connected with a connecting plate (41), the lower ends of two sides of the connecting plate (41) are connected with the mounting plate (31) in an up-down sliding mode, the surfaces of two sides of the connecting plate (41) are respectively fixedly connected with a connecting rack (42), the upper end of the first hinging rod (36) is respectively and coaxially fixedly connected with a linkage gear (43), and the linkage gear (43) is respectively meshed with the connecting racks (42).
6. A coal mining coal sorting apparatus according to claim 1, wherein: the cam (18) is characterized in that a plurality of protrusions are formed in the surface of the cam (18), an arc groove which is attached to an arc portion between two protrusions on the surface of the cam (18) is formed in the upper end of the base (59), and inclined planes which incline downwards are formed in the left end and the right end of the base (59) respectively.
7. A coal mining coal sorting apparatus according to claim 1, wherein: the spiral rod (54) comprises a central rod and spiral blades fixedly connected to the surface of the central rod, the front end of the screening cylinder (7) is rotationally connected with a sealing cover (60), the rear end of the central rod is rotationally connected with the lower side of the rear end of the shell (1), the front end of the central rod is rotationally connected with the lower side of the front end of the sealing cover (60), the front end of the central rod is fixedly connected with a matched gear (56), an inner gear ring (55) is meshed with the outer side of the matched gear (56), the inner gear ring (55) and the screening cylinder (7) are coaxially arranged, the inner gear ring (55) is fixedly connected with the connecting frame (8), and the spiral rod (54) can be driven to rotate under the meshing of the inner gear ring (55) and the matched gear (56) when the connecting frame (8) rotates.
8. A coal mining coal sorting apparatus according to claim 1, wherein: the upper end fixedly connected with bellows (4) of feed cylinder (5), the upside of shell (1) has seted up one and is used for bellows (4) upwards to extend hold mouthful, and bellows (4) upwards extend and bellows (4)'s upper end fixedly connected with feed inlet (3) through holding mouthful, and both ends are fixedly connected with support respectively around feed inlet (3), the lower extreme of support respectively with shell (1) fixed surface connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410673089.1A CN118455064A (en) | 2024-05-28 | 2024-05-28 | Coal sorting equipment for coal mining |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410673089.1A CN118455064A (en) | 2024-05-28 | 2024-05-28 | Coal sorting equipment for coal mining |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119216212A (en) * | 2024-12-03 | 2024-12-31 | 河南中正石油起重机械有限公司 | A device for clearing blockage of vibrating screen |
| CN120209966A (en) * | 2025-05-28 | 2025-06-27 | 光大绿色环保管理（深圳）有限公司 | A biomass-based ethanol fermentation conversion reaction device and method |
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2024
- 2024-05-28 CN CN202410673089.1A patent/CN118455064A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119216212A (en) * | 2024-12-03 | 2024-12-31 | 河南中正石油起重机械有限公司 | A device for clearing blockage of vibrating screen |
| CN119216212B (en) * | 2024-12-03 | 2025-03-25 | 河南中正石油起重机械有限公司 | A device for clearing blockage of vibrating screen |
| CN120209966A (en) * | 2025-05-28 | 2025-06-27 | 光大绿色环保管理（深圳）有限公司 | A biomass-based ethanol fermentation conversion reaction device and method |
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