CN210131684U - Grinding device for ultrafine fly ash - Google Patents
Grinding device for ultrafine fly ash Download PDFInfo
- Publication number
- CN210131684U CN210131684U CN201920439402.XU CN201920439402U CN210131684U CN 210131684 U CN210131684 U CN 210131684U CN 201920439402 U CN201920439402 U CN 201920439402U CN 210131684 U CN210131684 U CN 210131684U
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- China
- Prior art keywords
- rotary drum
- grinding
- fly ash
- steel balls
- pipe
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- 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.)
- Expired - Fee Related
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- 238000000227 grinding Methods 0.000 title claims abstract description 132
- 239000010881 fly ash Substances 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 41
- 239000010959 steel Substances 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims 6
- 238000007599 discharging Methods 0.000 abstract description 13
- 235000004237 Crocus Nutrition 0.000 abstract description 6
- 241000596148 Crocus Species 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 239000002956 ash Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a grinding device of superfine fly ash, the on-line screen storage device comprises a base, cylinder and actuating mechanism, the cylinder includes corase grind rotary drum and correct grinding rotary drum, through staple bolt swing joint between corase grind rotary drum and the correct grinding rotary drum, on the feed inlet of corase grind rotary drum and the discharge gate of correct grinding rotary drum rotated the installation bearing frame, nested in the feed inlet has the filling tube, nested in the discharge gate has the discharging pipe, the unloading pipe is installed to the tip of discharging pipe, the upper end of unloading pipe is connected with cyclone, airflow control valve is installed to the bottom of unloading pipe, be provided with spiral guiding gutter on the inner wall of corase grind rotary drum, the polylith lifting blade has been placed between the adjacent spiral guiding gutter, the partition bulkhead is installed to the inherent one end of keeping away from the feed inlet of corase grind rotary drum. This device is when guaranteeing the crocus quality, also by a wide margin improvement the efficiency of crocus, have simple structure, easy to maintain, energy-conservation, advantage that use cost is low.
Description
Technical Field
The utility model belongs to the technical field of waste resource comprehensive utilization, concretely relates to ultra-fine fly ash's grinding device.
Background
The fly ash is a fine granular substance collected after the pulverized coal of a thermal power plant is combusted in a boiler. China has abundant coal resources, the recent development of the power industry is mainly thermal power generation of coal, the total amount of ash and slag generated by thermal power plants is more and more, the speed is increased by more than 1000 ten thousand tons every year, the ash storage amount and the ash storage area occupy 10 to ten hundred million tons and 40 to ten thousand mu respectively according to the current ash discharge amount and utilization level, and the huge solid waste discharge occupies land and can cause adverse influence on the environment. The fly ash has the effects of volcanic ash, spherical micro-beads and the like, and is widely applied to the building material industry. The results of the early laboratory research and the later engineering application research show that the action size of the fly ash in cement and concrete is closely related to the fineness of the fly ash, and the finer the fineness is, the better the action effect is. The prior superfine fly ash is mainly obtained by drying, grinding and screening wet fly ash, the grinding is a key link in the fly ash production process, the fly ash granularity and uniformity are technical indexes for measuring the fly ash quality, in the prior art, a grinding device adopted by the fly ash is to fill a certain amount of steel balls into a rotary drum as grinding media, the grinding device with the structure finds that materials in the rotary drum are self-flowed in the use process, the materials cannot be timely discharged after the fineness meets the requirement in the grinding process, the phenomenon of over-grinding often occurs, the granularity of the ground materials is not uniform, in addition, the fly ash needs to be coarsely ground and then sent into the rotary drum for secondary grinding, the granularity requirement can be met, the grinding time is long, the grinding efficiency is low, in addition, the rotary drum is integrally manufactured by replacing, and if the replacement is needed, the whole cylinder needs to be replaced, and the use cost is increased virtually. Therefore, it is an objective need to develop a grinding device for ultrafine fly ash, which has a simple structure, is easy to maintain, saves energy, has a low use cost, and can greatly improve grinding quality and grinding efficiency.
Disclosure of Invention
An object of the utility model is to provide a simple structure, easy to maintain, energy-conservation, use cost are low, can improve the grinding quality and the grinding efficiency's of superfine fly ash grinding device by a wide margin.
The utility model aims at realizing the purpose, the device comprises a base, a roller and a driving mechanism for driving the roller to rotate, the roller comprises a rough grinding rotary drum and a fine grinding rotary drum which are coaxially arranged, the rough grinding rotary drum and the fine grinding rotary drum are movably connected through a hoop, a feed inlet of the rough grinding rotary drum and a discharge outlet of the fine grinding rotary drum are respectively rotatably installed on a bearing seat, the bearing seat is fixedly installed on the base, a feed pipe is nested in the feed inlet, a spiral feed plate is arranged in the feed pipe, a discharge pipe is nested in the discharge outlet, a discharge pipe is installed at the end part of the discharge pipe, the upper end of the discharge pipe is connected with a cyclone separator, an air flow regulating valve is installed at the bottom of the discharge pipe, a plurality of spiral guide grooves which are arranged along the length direction of the rough grinding rotary drum are arranged on the inner wall of the rough grinding rotary drum, a plurality of lifting, the center of the compartment plate is provided with a tapered hole, a plurality of coarse grinding steel balls are placed in the coarse grinding rotary drum, a plurality of fine grinding steel balls are placed in the fine grinding rotary drum, the ball diameter of the coarse grinding steel balls is larger than that of the fine grinding steel balls, and the number of the coarse grinding steel balls is larger than that of the fine grinding steel balls.
Further, actuating mechanism includes rotary drum gear, drive gear, gearbox and driving motor, rotary drum gear fixed mounting is on the outer wall of corase grind rotary drum one end, drive gear setting in the below of corase grind rotary drum and with rotary drum gear engagement, drive gear is connected with the gearbox transmission through the pivot, driving motor is connected with the gearbox transmission, driving motor and gearbox are all installed on the base.
Further, the air flow regulating valve comprises a valve, a valve rod, a locking screw rod and a handle, the valve is installed in the discharging pipe, the valve rod is installed on the valve, the handle is installed at one end of the valve rod, and the locking screw rod penetrates through the handle and fixes the handle in the jack of the side wall of the discharging pipe.
Preferably, the ball diameter of the rough grinding steel balls is 0.5-1 times of the ball diameter of the fine grinding steel balls, and the number of the rough grinding steel balls is 2-3 times of the number of the fine grinding steel balls.
Furthermore, a discharge baffle is arranged on the inner wall of the fine grinding rotary drum and close to the discharge port, a round hole is processed on the discharge baffle, and the diameter of the round hole is smaller than that of the small end of the conical hole.
Further, annular guide rail is all installed at the middle part of corase grind rotary drum outer wall and the middle part of correct grinding rotary drum outer wall, install the guide rail seat on the base, processing has the guide rail groove in the guide rail seat, annular guide rail installs at the guide rail inslot.
Further, the inlet of the charging pipe is provided with a charging cover, the charging cover is internally provided with a material guide plate at intervals, and the material guide plate is of a curved surface structure
Compared with the prior art, the utility model discloses a there is following beneficial effect: firstly, the roller is made by a rough grinding roller and a fine grinding roller in a segmented mode, so that later-stage maintenance and replacement are facilitated, secondly, the fly ash is smashed by a rough grinding steel ball in the rough grinding roller, and the fly ash is pushed to move in the rough grinding roller under the action of a spiral diversion trench, so that the impact point of the rough grinding steel ball is increased, meanwhile, the effect of a material raising plate is utilized to push the rough grinding steel ball, and the rough grinding steel ball can be lifted to a certain height of the rough grinding roller to land; thirdly, the pulverized coal ash is ground by using fine grinding steel balls with small ball diameter but large quantity in the fine grinding rotary drum, so that contact points are improved, and the ground powder is ensured to be finer; fourthly, the powder of grinding can be collected in the quick unloading pipe of inhaling of the powder after grinding through the suction that cyclone produced, does not have the condition that the over-grinding or levigating degree is not enough, can make the more fine and smooth and even of powder that processes out, when guaranteeing the crocus quality, also by a wide margin improvement the efficiency of crocus, have simple structure, easy to maintain, energy-conservation, advantage that use cost is low, easily use widely.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure, 1-base, 2-bearing seat, 3-feeding cover, 4-guide plate, 5-feeding pipe, 6-spiral feeding plate, 7-drum gear, 8-rough grinding drum, 9-material raising plate, 10-spiral guide groove, 11-partition plate, 12-hoop, 13-fine grinding drum, 14-annular guide rail, 15-discharging baffle, 16-discharging pipe, 17-discharging pipe, 18-cyclone separator, 19-handle, 20-locking screw, 21-valve rod, 22-valve, 23-guide rail seat, 24-fine grinding steel ball, 25-rough grinding steel ball, 26-driving motor, 27-gear box, 28-driving gear and 29-rotating shaft.
Detailed Description
The following further describes the present invention with reference to the attached drawings, but the present invention is not limited in any way, and any changes or improvements based on the teaching of the present invention all belong to the protection scope of the present invention.
As shown in figure 1, the utility model comprises a base 1, a roller and a driving mechanism for driving the roller to rotate, wherein the roller comprises a rough grinding rotary drum 8 and a fine grinding rotary drum 13 which are coaxially arranged, the rough grinding rotary drum 8 and the fine grinding rotary drum 13 are movably connected through a hoop 12, so that the rotary drums are convenient to replace, if one section of the rotary drum is damaged, only one section of the rotary drum needs to be replaced without replacing the whole drum, so that the use cost can be effectively reduced, the hoop 12 adopts a structure used in the prior art, a feed inlet of the rough grinding rotary drum 8 and a discharge outlet of the fine grinding rotary drum 13 are respectively rotatably arranged on a bearing seat 2, the bearing seat 2 is fixedly arranged on the base 1, a feed pipe 5 is nested in the feed inlet, a spiral feed plate 6 is arranged in the feed pipe 5, a discharge pipe 16 is nested in the discharge outlet, a discharge pipe 17 is arranged at the end, the upper end of the blanking pipe 17 is connected with a cyclone separator 18, the bottom of the blanking pipe 17 is provided with an air flow regulating valve, the inner wall of the rough grinding rotary drum 8 is provided with a plurality of spiral guide grooves 10 arranged along the length direction of the rough grinding rotary drum, a plurality of material raising plates 9 are arranged between the adjacent spiral guide grooves 10 at intervals along the circumferential direction of the rough grinding rotary drum 8, a compartment plate 11 is arranged at one end, far away from a feed inlet, of the rough grinding rotary drum 8, a conical hole is processed at the center of the compartment plate 11, a plurality of rough grinding steel balls 25 are placed in the rough grinding rotary drum 8, a plurality of accurate grinding steel balls 24 are placed in the accurate grinding rotary drum 13, the ball diameter of the rough grinding steel balls 25 is larger than that of the accurate grinding steel balls 24, and the number of the rough.
The utility model discloses a theory of operation is: firstly, the driving mechanism drives the rotating drum to rotate, then, the fly ash is added into the feeding port of the rough grinding rotating drum 8 through the feeding pipe 5, as the spiral guide grooves 10 are arranged in the rough grinding rotating drum 8, in the rotating process of the rough grinding rotating drum 8, the fly ash is pushed to move in the rough grinding rotating drum 8 under the action of the spiral guide grooves 10, so that the impact points of the rough grinding steel balls 25 are increased, meanwhile, the effect of the material raising plate 9 is utilized to push the rough grinding steel balls 25, the rough grinding steel balls 25 can be lifted to a certain height of the rough grinding rotating drum 8 to land, so that the fly ash is crushed in the rough grinding rotating drum 13, and under the action of the spiral guide grooves 10, the crushed fly ash can move into the fine grinding rotating drum 8 and enter the fine grinding rotating drum 8 through the tapered holes, a plurality of fine grinding steel balls 24 are arranged in the fine grinding rotating drum 8, and the crushed, The less accurate grinding steel ball 24 of ball footpath grinds, it has improved the contact time and the area among the grinding process, can improve the meticulous nature of grinding, the suction of the powder after levigating through cyclone 18 production can be quick is inhaled in unloading pipe 17 and is collected, only need open pneumatic control valve and just can discharge powder unloading pipe 17, the mill of this structure does not have the condition that the mill or levigating degree is not enough, can make the powder more fine and smooth and even that processing came out, when guaranteeing the crocus quality, also by a wide margin the improvement the efficiency of crocus.
Further, in order to ensure the smoothness of the rotation process of the rotating drum, the driving mechanism comprises a rotating drum gear 7, a driving gear 28, a gear box 27 and a driving motor 26, the rotating drum gear 7 is fixedly installed on the outer wall of one end of the rough grinding rotating drum 8, the driving gear 28 is arranged below the rough grinding rotating drum 8 and is meshed with the rotating drum gear 7, the driving gear 28 is in transmission connection with the gear box 27 through a rotating shaft 29, the driving motor 26 is in transmission connection with the gear box 27, the driving motor 26 and the gear box 27 are both installed on the base 1, when in use, the driving motor 26 drives the rotating shaft 29 to rotate, the rotating shaft 29 drives the driving gear 7 to rotate, the driving gear 7 drives the whole rotating drum to rotate, the driving gear 7 is connected with the gear box 27 through the rotating shaft 29, the gear box 27 is used for, unnecessary energy consumption is reduced.
Further, the air flow adjusting valve comprises a valve 22, a valve rod 21, a locking screw 20 and a handle 19, the valve 22 is installed in the discharging pipe 17, the valve rod 21 is installed on the valve 22, the handle 19 is installed at one end of the valve rod 21, the locking screw 20 penetrates through the handle 19 and fixes the handle 19 in a jack of the side wall of the discharging pipe 17, during discharging, the locking screw 20 is loosened, the handle 19 is separated from the discharging pipe 17, the valve 22 is opened for discharging, after discharging is completed, the locking screw 20 is locked, and the valve 22 is closed.
In order to control and master the grinding uniformity, the ball diameter of the coarse grinding steel balls 25 is 0.5-1 times of the ball diameter of the fine grinding steel balls 24, and the number of the coarse grinding steel balls 25 is 2-3 times of the number of the fine grinding steel balls 24.
Further, install discharge baffle 15 near discharge gate department on the inner wall of correct grinding rotary drum 13, processing has the round hole on the discharge baffle 15, the ball footpath of round hole is less than the tip ball footpath of bell mouth, and discharge time through the discharge baffle 15 that sets up can slow down the powder can avoid under the condition of cross-grinding, the levigated degree of improvement that can further go forward.
In order to guarantee the stability of the roller in the rotating process, the middle part of the outer wall of the coarse grinding rotating cylinder 8 and the middle part of the outer wall of the fine grinding rotating cylinder 13 are both provided with an annular guide rail 14, the base 1 is provided with a guide rail seat 23, a guide rail groove is processed in the guide rail seat 23, and the annular guide rail 14 is arranged in the guide rail groove.
Further, the import department of filling tube 5 is provided with reinforced cover 3, the interval is installed stock guide 4 in the reinforced cover 3, stock guide 4 is curved surface type structure, and reinforced cover 3 that sets up can be disposable adds a certain amount of fly ash, at the cylinder pivoted in-process, can make fly ash inwards slide to enter into filling tube 5 in, the reinforced number of times of reduction that can be reasonable.
Claims (8)
1. The utility model provides an ultra fine fly ash's grinding device, includes base (1), cylinder and drive roller pivoted actuating mechanism, its characterized in that: the roller comprises a rough grinding rotary drum (8) and a fine grinding rotary drum (13) which are coaxially arranged, the rough grinding rotary drum (8) and the fine grinding rotary drum (13) are movably connected through a hoop (12), a feed inlet of the rough grinding rotary drum (8) and a discharge outlet of the fine grinding rotary drum (13) are respectively rotatably installed on a bearing seat (2), the bearing seat (2) is fixedly installed on a base (1), a feed pipe (5) is nested in the feed inlet, a spiral feed plate (6) is arranged in the feed pipe (5), a discharge pipe (16) is nested in the discharge outlet, a discharge pipe (17) is installed at the end part of the discharge pipe (16), a cyclone separator (18) is connected to the upper end of the discharge pipe (17), an air flow regulating valve is installed at the bottom part of the discharge pipe (17), a plurality of spiral guide grooves (10) are arranged on the inner wall of the rough grinding rotary drum (8, and a plurality of material raising plates (9) are arranged between adjacent spiral diversion trenches (10) at intervals along the circumferential direction of the coarse grinding rotary drum (8), a compartment plate (11) is installed at one end, far away from the feeding hole, of the coarse grinding rotary drum (8), a conical hole is machined in the center of the compartment plate (11), coarse grinding steel balls (25) are placed in the coarse grinding rotary drum (8), and fine grinding steel balls (24) are placed in the fine grinding rotary drum (13).
2. The ultrafine fly ash pulverizing mill according to claim 1, characterized in that: the ball diameter of the rough grinding steel balls (25) is larger than that of the accurate grinding steel balls (24), and the number of the rough grinding steel balls (25) is larger than that of the accurate grinding steel balls (24).
3. The ultrafine fly ash pulverizing mill according to claim 1, characterized in that: the driving mechanism comprises a rotary drum gear (7), a driving gear (28), a gearbox (27) and a driving motor (26), wherein the rotary drum gear (7) is fixedly installed on the outer wall of one end of the rough grinding rotary drum (8), the driving gear (28) is arranged below the rough grinding rotary drum (8) and meshed with the rotary drum gear (7), the driving gear (28) is in transmission connection with the gearbox (27) through a rotating shaft (29), the driving motor (26) is in transmission connection with the gearbox (27), and the driving motor (26) and the gearbox (27) are both installed on the base (1).
4. The ultrafine fly ash grinding device according to claim 1, wherein the air flow regulating valve comprises a valve (22), a valve rod (21), a locking screw (20) and a handle (19), the valve (22) is installed in the feeding pipe (17), the valve rod (21) is installed on the valve (22), the handle (19) is installed at one end of the valve rod (21), and the locking screw (20) penetrates through the handle (19) and fixes the handle (19) in a jack on the side wall of the feeding pipe (17).
5. The ultrafine fly ash pulverizing mill according to claim 1, characterized in that: the ball diameter of the rough grinding steel balls (25) is 0.5-1 times of the ball diameter of the accurate grinding steel balls (24), and the number of the rough grinding steel balls (25) is 2-3 times of the number of the accurate grinding steel balls (24).
6. The ultrafine fly ash pulverizing mill according to claim 1, characterized in that: and a discharge baffle (15) is arranged on the inner wall of the fine grinding rotary drum (13) and close to the discharge hole, a round hole is processed on the discharge baffle (15), and the diameter of the round hole is smaller than that of the small end of the conical hole.
7. The ultrafine fly ash pulverizing mill according to claim 1, characterized in that: annular guide rail (14) are all installed at the middle part of corase grind rotary drum (8) outer wall and the middle part of correct grind rotary drum (13) outer wall, install guide rail seat (23) on base (1), processing has the guide rail groove in guide rail seat (23), install at the guide rail inslot annular guide rail (14).
8. The ultrafine fly ash pulverizing mill according to claim 1, characterized in that: the feeding device is characterized in that a feeding cover (3) is arranged at the inlet of the feeding pipe (5), a material guide plate (4) is installed in the feeding cover (3) at intervals, and the material guide plate (4) is of a curved surface type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920439402.XU CN210131684U (en) | 2019-04-02 | 2019-04-02 | Grinding device for ultrafine fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920439402.XU CN210131684U (en) | 2019-04-02 | 2019-04-02 | Grinding device for ultrafine fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210131684U true CN210131684U (en) | 2020-03-10 |
Family
ID=69703369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920439402.XU Expired - Fee Related CN210131684U (en) | 2019-04-02 | 2019-04-02 | Grinding device for ultrafine fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210131684U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210084A (en) * | 2021-01-19 | 2021-08-06 | 澄迈华盛天涯水泥有限公司 | Cement production ball mill keeps off material circle with energy-conserving effect |
| CN114956633A (en) * | 2022-01-20 | 2022-08-30 | 福建省广建环保科技有限公司 | Superfine composite mineral admixture and preparation method and application thereof |
| CN116532202A (en) * | 2023-04-20 | 2023-08-04 | 长江师范学院 | A grinding device with adjustable particle size |
| RU2809999C1 (en) * | 2023-05-26 | 2023-12-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" | Grinder |
-
2019
- 2019-04-02 CN CN201920439402.XU patent/CN210131684U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210084A (en) * | 2021-01-19 | 2021-08-06 | 澄迈华盛天涯水泥有限公司 | Cement production ball mill keeps off material circle with energy-conserving effect |
| CN114956633A (en) * | 2022-01-20 | 2022-08-30 | 福建省广建环保科技有限公司 | Superfine composite mineral admixture and preparation method and application thereof |
| CN114956633B (en) * | 2022-01-20 | 2023-09-08 | 福建省广建环保科技有限公司 | Superfine composite mineral admixture and preparation method and application thereof |
| CN116532202A (en) * | 2023-04-20 | 2023-08-04 | 长江师范学院 | A grinding device with adjustable particle size |
| RU2809999C1 (en) * | 2023-05-26 | 2023-12-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" | Grinder |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200310 |
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| CF01 | Termination of patent right due to non-payment of annual fee |