CN203470339U - Pneumatic steel ball screening machine - Google Patents
Pneumatic steel ball screening machine Download PDFInfo
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- CN203470339U CN203470339U CN201320464360.8U CN201320464360U CN203470339U CN 203470339 U CN203470339 U CN 203470339U CN 201320464360 U CN201320464360 U CN 201320464360U CN 203470339 U CN203470339 U CN 203470339U
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- steel ball
- casing
- screening machine
- ball
- flapper
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Abstract
The utility model discloses a pneumatic steel ball screening machine, which includes a box body provided with an opened lower end, and a base arranged at the lower part of the box body, wherein the box body is internally provided with a dedusting assembly, an anti-explosion partition and a primary air locker from top to bottom; the dedusting assembly includes a filter screen, a sweeper and a partition that are sequentially arranged from top to bottom; a secondary air locker and a diversion trench arranged below the secondary air locker are arranged inside the base; the secondary air locker and the box body form a closed space; a screening plate for screening steel balls is further arranged under the base; the steel ball screening machine further includes an air source assembly forming negative pressure inside the box body and at least one group of ball fetching assemblies; the air source assembly includes a blower; the air outlet of the blower is communicated with the box body through the air tube; each ball fetching assembly includes a ball fetching device; each ball fetching device is communicated with the inside of the box body through a ball conveying tube and a ball guiding tube sequentially. The steel ball screening machine provided by the utility model has a simple structure, is high in automation degree, and can remarkably improve the stall ball screening quality and efficiency.
Description
Technical field
The utility model relates to a kind of steel ball screening machine, is specifically related to a kind of pneumatic type steel ball screening machine of low speed coal mill special use.
Background technology
In the thermal power plant of hinterland, the application of low speed coal mill is very extensive at home, and it is the capital equipment of grinding powder coal, is also one of capital equipment on production line, and the state of its operation directly has influence on the normal power generation of production line.Therefore to guarantee normal operating condition and the efficiency of low speed coal mill.Yet in daily running, the steel ball in coal pulverizer can progressively wear away, diameter is more and more less, and when steel ball is little to a certain extent time, small ball is inoperative to the grinding of coal, during low speed coal mill operation, can consume more electric weight.In coal, contain many as the foreign material such as instrument that drop in the part dropping in ore deposit chain, big gun line, wooden unit, gangue, the powder system, Maintenance and Repair process simultaneously, make the abrasive article wearing and tearing aggravation of coal pulverizer, and in coal pulverizer, accumulate grinding efficiency is reduced, coal-grinding power consumption increases, and big gun line, wood chip etc. stop up powder process pipeline and separation equipment.For addressing this problem, at low speed coal mill, after operation a period of time, just must shut down, steel ball and foreign material are all poured out, small ball and foreign material are picked out, and then qualified steel ball is reinstalled.Conventional a kind of way is to screen manually steel ball at present, the steel ball that is less than certain diameter is screened, yet, by choosing shuttles manually, the sphere diameter of bad judgement steel ball in practical operation, and the traditional method of manually choosing shuttles operating personnel's labour intensity is large, and steel ball sphere diameter ratio is quantitatively inaccurate, operating environment is severe, and efficiency is low.For this reason, design a kind of method that automatic steel ball screening machine replaces the artificial screening steel ball of transmission, seem particularly important.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of occupation of land little, and energy consumption is low, simple to operate, installs simply, can be by the steel ball automatic screening of the size that falls short of specifications pneumatic type steel ball screening machine out.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of pneumatic type steel ball screening machine, the casing and the base of being located at casing below that comprise a lower ending opening, in described casing, be provided with from top to bottom dedusting assembly, anti-explosion partition and one-level flapper, described dedusting assembly comprises filter screen, sweeper and the dividing plate of arranging successively from top to bottom; The guiding gutter that is provided with a secondary flapper in described base and is located at secondary flapper below, described secondary flapper and casing form airtight space, the below of described base is also provided with the sieve plate for steel ball screening, one end and the guiding gutter of described sieve plate join, and the other end joins by the goal tube of a guide plate and ball mill; Described steel ball screening machine also comprises the ball component of getting of the wind regime assembly that makes box house form negative pressure and at least one group, described wind regime assembly comprises blower fan, the gas outlet of described blower fan communicates with casing by airduct, the described ball component of getting comprises ball picking device, described ball picking device successively by the pipe of losing, lead bulb and communicate with in casing, described steel ball screening machine also comprises the intake valve of being located at casing top.
Preferably: described dedusting assembly is obliquely installed in casing, and the angle of dedusting assembly place plane and horizontal plane is 15～30 °.
Preferably: described one-level flapper is identical with the structure of secondary flapper, comprise funnel and the conduit of accepting mutually with funnel, on described conduit, pivotable connection one is positioned at the cover plate in exit.
Preferably: the external diameter of described funnel and the internal diameter of casing are suitable, and described conduit is obliquely installed, the angle and between itself and funnel is 30-60 °.
Preferably: the pars infundibularis of described secondary flapper is located at the opening part of casing, and accept mutually with the conduit of one-level flapper.
Preferably: described sieve plate is obliquely installed, and the angle of sieve plate place plane and horizontal plane is 15-45 °, described sieve plate comprises two screw rods and many pipes, described many pipes are cascaded by two screw rods, and between adjacent two pipes, be provided with and be arranged in equally two limited blocks on screw rod, many pipes are by being positioned at the nut 33 in two pipe outsides and fastening being serially connected that coordinate of 32 of screw rods of outermost end.
Preferably: parallel setting is at least two-layer successively from top to bottom for described sieve plate, and on every layer of sieve plate, the spacing between adjacent pipe reduces from top to bottom successively.
Preferably: the goal end of described ball picking device is that a side becomes pipe.
Preferably: described in lead bulb the other end through casing, enter the inside of casing, and extend to the below of anti-explosion partition, and described in lead the ball mouth of bulb surrounding be welded with evenly reinforcing bar spaced apart.
Preferably: comprise the ball component of getting of two groups of parallel settings, and two are led the parallel below that is arranged at anti-explosion partition of bulb.
The beneficial effects of the utility model are:
1) structurally, steel ball screening machine described in the utility model is simple in structure, and small volume is convenient for carrying maintenance low speed coal mill, installs that convenient flexibly energy consumption is low, and the efficiency of screening steel ball is high; In screening small ball, can effectively prevent that the foreign material such as iron block in steel ball, stone, wooden unit from entering in screening machine, improved the quality of screening steel ball; Sieve plate be for can install formula sieve plate, carries out steel ball ratio quantitative after can conveniently superposeing, and then adds suitable sphere diameter steel ball, makes Ball Mill operational effect better, reduces operating personnel's labour intensity, improves operating personnel's operating environment.
2) steel ball screening machine described in the utility model can replace the method for traditional artificial screening steel ball, can save production cost, for using producer to bring certain economic benefit.The 300WM boiler overhaul of take is example, amounts to 5 low speed coal mills, and artificial screening steel ball needs 20 people, approximately 50 days durations of screening steel ball, every steel ball screening time approximately 10 days, comprises and puts ball, be transported to screening place, sorting steel ball, is transported to feeder platform and adds ball.Adopt pneumatic type steel ball screening machine described in the utility model only to need 6 people, 25 days durations, every steel ball screening time approximately 5 days, comprises and puts ball, screening machine is installed, screens steel ball and adds ball; In the process of screening steel ball, directly the steel ball having screened is directly joined in Ball Mill from ball feeding pipe, avoided the generation of steel ball secondary transhipment, thereby the foreign material such as the iron block simultaneously in steel ball, stone, wooden unit are screened in can not entering ball picking device, gone in not out being added into low speed coal mill.
Accompanying drawing explanation
Fig. 1 shows the perspective view of steel ball screening machine described in the utility model;
Fig. 2 shows the structural representation of casing part described in the utility model;
Fig. 3 shows the structural representation of dividing plate described in the utility model;
Fig. 4 shows structural representation of leading bulb described in the utility model;
Fig. 5 shows the structural representation of flapper described in the utility model;
Fig. 6 shows the structural representation of sieve plate described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.
With reference to accompanying drawing 1-6, steel ball screening machine shown in the utility model, comprise the casing 2 of a lower ending opening and be located at casing 2 belows, to the passive base 18 of casing 2, in described casing 2, be provided with from top to bottom dedusting assembly, anti-explosion partition 6 and one-level flapper 8, described anti-explosion partition 6 is welded on a side inwall of casing 2, and downward-sloping 15-45 °, and in the middle of it, there is the reinforcement of strengthening fastening effect.Described dedusting assembly comprises filter screen 4, sweeper 3 and the dividing plate 5 of arranging successively from top to bottom, described filter screen 4, sweeper 3 and dividing plate 5 are installed in casing 2 accordingly by filter screen mounting groove 21, sweeper mounting groove 22 and the dividing plate mounting groove 23 of being located on casing 2 inwalls respectively, described dividing plate 5 is provided with equally distributed groove, and its two ends are provided with opening, the pull bar of described sweeper 3 one end passes casing 2 outsides, and leader is installed, to facilitate from casing 2, filter screen 4 is cleared up.In the present embodiment, described sweeper 3 can adopt Brush type sweeper or scraper-type sweeper, and preferred embodiment described dedusting assembly is obliquely installed in casing 2 as one, and the angle of dedusting assembly place plane and horizontal plane is 15～30 °.In described base 18, be also provided with a secondary flapper 9, described secondary flapper 9 is identical with the structure of one-level flapper 8, comprise for the funnel 81 of charging and the conduit 82 of accepting mutually with funnel 81, the internal diameter of the external diameter of described funnel 81 and casing 2 is suitable, and the exit of described conduit 82 is for example to connect a cover plate 84 by hinge 83 pivotables.As a preferred implementation method, described conduit 82 tilts to have certain angle, and the angle of 81, itself and funnel is 30-60 °, the interplanar angle in opening place of accepting mutually with conduit 82 that described angle refers to the center line of conduit 82 and funnel 81.The funnel of described secondary flapper 9 is sticked in the opening part of casing 2, and accept mutually with the conduit of one-level flapper 8, described secondary flapper 9 forms an airtight space by its funnel and casing, the below at the conduit outlet place of described secondary flapper 9 is also provided with a guiding gutter 10, described guiding gutter 10 is obliquely installed and is fixed in base 18, is respectively welded with a baffle plate on the dual-side of described guiding gutter 10.The below of described base 18 is provided with sieve plate 11, described sieve plate 11 comprises two screw rods 32 and many pipes, many pipes are cascaded by two screw rods 32, and between adjacent two pipes, be provided with and be arranged in equally two limited blocks 31 on screw rod 32, many pipes are by being positioned at the nut 33 in two pipe outsides and fastening being serially connected that coordinate of 32 of screw rods of outermost end.One end of described sieve plate 11 is connected with the guiding gutter 10 in being located at base 18, and the other end communicates with the goal tube of ball mill by a guide plate (not shown).Preferred embodiment described sieve plate 11 is obliquely installed as one, and the angle of sieve plate 11 place planes and horizontal plane is 15-45 °.In present embodiment, also can walk abreast at least two-layer sieve plate 11 is set successively from top to bottom, and on every layer of sieve plate 11, the spacing between adjacent pipe reduce from top to bottom successively according to actual needs, to carry out on request the steel ball screening of different size.
Steel ball screening machine described in the utility model also comprises the ball component of getting of wind regime assembly and at least one group, described wind regime assembly comprises the blower fan 16 of being located at outside casing 2, the gas outlet of described blower fan 16 is connected with an airduct 13, described airduct 13 is flexible pipe, the other end of described airduct 13 communicates with casing 2 by being positioned at the air duct flange 25 of dedusting assembly top, to form bellows district 12 between the upper wall at dedusting assembly and casing 2.The described ball component of getting comprises the ball picking device 17 of being located at outside casing 2, ball picking device 17 in present embodiment is scored and held is that a side becomes pipe, its one end has a square orifice, the other end has a circular port, described ball picking device 17 go out pommel be connected with one lose pipe 15, the described pipe 15 of losing is for flexible pipe, described lose pipe 15 the other end by pipe joint 14 with lead bulb 7 and be connected, the described bulb 7 of leading is for hard tube, the described other end of leading bulb 7 enters the inside of casing 2 through casing 2, and extend to the below of anti-explosion partition 6, and described in lead the ball mouth of bulb 7 surrounding be welded with evenly reinforcing bar 71 spaced apart, reinforcing bar 71 in the present embodiment can be set to 6, by the mode of welding, be evenly located at the surrounding of the ball mouth of leading bulb 7.Preferred embodiment the ball component of getting in present embodiment arranges 2 groups altogether as one, get that ball component is parallel to be arranged for 2 groups, and two is led the parallel top that is arranged at one-level flapper 8 of bulb 7.In addition, steel ball screening machine described in the utility model also comprises the intake valve 1 of being located at casing 2 tops by gate valve flange 24.
Adopt steel ball screening machine described in the utility model to carry out steel ball screening, its operation principle is: the falling sphere pipe place that steel ball screening machine casing 2 is arranged on to coal pulverizer, connect all parts, by 11 ball feeding pipe places to coal pulverizer of sieve plate, ball picking device 17 is aimed to steel ball, utilize centrifugal high pressure fan 16 constantly to aspirating air in casing 2, form the high negative pressure state in casing 2, thereby steel ball is drawn in casing 2, steel ball enters one-level flapper 8 from ball picking device 17 through lose pipe 15 and conduit 7, now, one-level flapper 8 and secondary flapper 9 are in closed condition, when the steel ball in the funnel of one-level flapper 8 runs up to a certain degree, due to gravity, the cover plate of one-level flapper 8 is opened (now secondary flapper 9 is still in closed condition) automatically, steel ball has been fallen the funnel of secondary flapper 9 automatically, when the steel ball in one-level flapper 8 is reduced to some, under the cover plate of one-level flapper 8 and the effect of blast, one-level flapper 8 is closed automatically, now, secondary flapper 9 is due to the gravity of steel ball, cover plate is opened automatically, steel ball has also been slipped in guiding gutter 10 thus, and through guiding gutter 10 landings to sieve plate 11, according to the spacing arranging on sieve plate 11, steel ball size is greater than sieve plate 11 spacing, automatic landing is to the ball feeding pipe of low speed coal mill, the steel ball and other foreign material that are less than sieve plate 11 spacing are automatically out screened through sieve plate 11, thereby realize the screening of steel ball.
Pneumatic type steel ball screening machine wind regime function mode described in the utility model is: intake valve → wind regime of opening the intake valve of casing → open fan power → close casing enters → pass through dividing plate and filter screen isolation dust and small ball → closing gate valve → close blower fan from the pipe of losing.
Pneumatic type steel ball screening machine steel ball described in the utility model flows to: ball picking device → lose and manage → lead bulb → casing → one-level flapper → secondary flapper → guiding gutter → sieve plate → ball mill.
Be only the utility model preferred embodiment in sum, be not used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modify, all should belong to technology category of the present utility model.
Claims (10)
1. a pneumatic type steel ball screening machine, it is characterized in that: the casing and the base of being located at casing below that comprise a lower ending opening, in described casing, be provided with from top to bottom dedusting assembly, anti-explosion partition and one-level flapper, described dedusting assembly comprises filter screen, sweeper and the dividing plate of arranging successively from top to bottom; The guiding gutter that is provided with a secondary flapper in described base and is located at secondary flapper below, described secondary flapper and casing form airtight space, the below of described base is also provided with the sieve plate for steel ball screening, one end and the guiding gutter of described sieve plate join, and the other end joins by the goal tube of a guide plate and ball mill; Described steel ball screening machine also comprises the ball component of getting of the wind regime assembly that makes box house form negative pressure and at least one group, described wind regime assembly comprises blower fan, the gas outlet of described blower fan communicates with casing by airduct, the described ball component of getting comprises ball picking device, described ball picking device successively by the pipe of losing, lead bulb and communicate with in casing; Described steel ball screening machine also comprises the intake valve of being located at casing top.
2. steel ball screening machine according to claim 1, it is characterized in that: described dedusting assembly is obliquely installed in casing, and the angle of dedusting assembly place plane and horizontal plane is 15～30 °.
3. steel ball screening machine according to claim 1, is characterized in that: described one-level flapper is identical with the structure of secondary flapper, comprises funnel and the conduit of accepting mutually with funnel, and on described conduit, pivotable connection one is positioned at the cover plate in exit.
4. steel ball screening machine according to claim 3, is characterized in that: the external diameter of described funnel and the internal diameter of casing are suitable, and described conduit is obliquely installed, and the angle between itself and funnel is 30-60 °.
5. according to the steel ball screening machine described in claim 1 or 3, it is characterized in that: the pars infundibularis of described secondary flapper is located at the opening part of casing, and accept mutually with the conduit of one-level flapper.
6. steel ball screening machine according to claim 1, it is characterized in that: described sieve plate is obliquely installed, and the angle of sieve plate place plane and horizontal plane is 15-45 °, described sieve plate comprises two screw rods and many pipes, described many pipes are cascaded by two screw rods, and between adjacent two pipes, be provided with and be arranged in equally two limited blocks on screw rod, many pipes are by being positioned at the nut 33 in two pipe outsides and fastening being serially connected that coordinate of 32 of screw rods of outermost end.
7. according to the steel ball screening machine described in claim 1 or 6, it is characterized in that: parallel setting is at least two-layer successively from top to bottom for described sieve plate, and on every layer of sieve plate, the spacing between adjacent pipe reduces from top to bottom successively.
8. steel ball screening machine according to claim 1, is characterized in that: the goal end of described ball picking device is that a side becomes pipe.
9. steel ball screening machine according to claim 1, it is characterized in that: described in lead bulb the other end through casing, enter the inside of casing, and extend to the below of anti-explosion partition, and described in lead the ball mouth of bulb surrounding be welded with evenly reinforcing bar spaced apart.
10. according to the steel ball screening machine described in claim 1,8 or 9, it is characterized in that: comprise the ball component of getting of two groups of parallel settings, and two are led the parallel below that is arranged at anti-explosion partition of bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320464360.8U CN203470339U (en) | 2013-07-31 | 2013-07-31 | Pneumatic steel ball screening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320464360.8U CN203470339U (en) | 2013-07-31 | 2013-07-31 | Pneumatic steel ball screening machine |
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| Publication Number | Publication Date |
|---|---|
| CN203470339U true CN203470339U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320464360.8U Expired - Lifetime CN203470339U (en) | 2013-07-31 | 2013-07-31 | Pneumatic steel ball screening machine |
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| CN (1) | CN203470339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480520A (en) * | 2019-08-18 | 2019-11-22 | 王建荣 | A kind of ball blast recyclable device and its screening operating method |
| CN113426660A (en) * | 2021-06-25 | 2021-09-24 | 安徽省凤形新材料科技有限公司 | Small ball sorting machine for grinding ball production |
-
2013
- 2013-07-31 CN CN201320464360.8U patent/CN203470339U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480520A (en) * | 2019-08-18 | 2019-11-22 | 王建荣 | A kind of ball blast recyclable device and its screening operating method |
| CN113426660A (en) * | 2021-06-25 | 2021-09-24 | 安徽省凤形新材料科技有限公司 | Small ball sorting machine for grinding ball production |
| CN113426660B (en) * | 2021-06-25 | 2023-03-14 | 安徽省凤形新材料科技有限公司 | A pellet sorter for ball production |
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Granted publication date: 20140312 |
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