CN2917789Y

CN2917789Y - Compartment apparatus of cement mill

Info

Publication number: CN2917789Y
Application number: CNU2006200747044U
Authority: CN
Inventors: 贾林喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-05
Filing date: 2006-07-05
Publication date: 2007-07-04
Anticipated expiration: 2016-07-05

Abstract

The utility model provides a silo alternating device for the cement grinding mill, which comprises a grid plate, an annular plate, a coarse powder guide prick, a fine powder guide prick as well as a material sieve and an adjusting wind plate. Through holes with an uniform interval are arranged on the periphery of the annular plate, while bolts are respectively arranged near the center at one side of the outer periphery and the inner periphery spaced between the adjacent through holes. The adjusting wind plate is in a fan annular shape, while a cambered slot is arranged near the flank of the long cambered edge of the adjusting wind plate and is sheathed on the bolts of the outer periphery of the annular plate. Through holes are arranged near the flank of the short cambered edge of the adjusting wind plate and are sheathed on the bolts of the inner periphery of the annular plate, while the nuts are locked onto the bolts to let the adjusting wind plate firmly fixed on the annular plate. The material sieve in a table structure is arranged between the grid plate and the annular plate. The big end of the material sieve is arranged on the inner wall of the grinding mill, while the small end is arranged at the junction between the big end of the coarse powder guide prick and the big end of the fine powder guide prick. This device not only can prevent the internal mill from excessively pulverizing but also has a rapid material flowing speed.

Description

The cement grinding mill partition device for barn

Affiliated technical field

The utility model relates to a kind of cement grinding mill partition device for barn.

Background technology

Existing cement mill is generally compartment mill.In compartment mill, partition device for barn is housed usually between storehouse and the storehouse.Partition device for barn generally comprises grate plate, sieve plate, annular slab, meal burden-guiding cone and fine powder burden-guiding cone, the neighboring of grate plate and annular slab is arranged on the inwall of cement mill, sieve plate is between grate plate and annular slab and be parallel to grate plate and annular slab, the neighboring of sieve plate is arranged on the inwall of grinding machine, and the big end of meal powder guiding taper is measure-alike with the big end of fine powder powder guiding taper and connect and be arranged in the centre bore of sieve plate.During work, partition device for barn rotates with grinding machine, the material of coarsegrain at first carries out pre-separation by grate plate, the material of coarsegrain is stayed in the preceding storehouse to be ground, in the comb hole of material by grate plate of small grain size enter in the space between grate plate and the sieve plate, wherein the sieve seam hole of the material of small grain size by sieve plate enters in the space between grate plate and the annular slab, import to the back by the fine powder burden-guiding cone and make its further grinding in the storehouse, the material of middle granularity is imported to by the meal burden-guiding cone and proceeds in the preceding storehouse to grind.Owing to sieve plate is the planform that ring plate is provided with sieve seam hole thereon, material mainly stitches the hole by being pressed through its sieve, so material enters Hou Cang in the past storehouse soon.Simultaneously,, do not exist the small grain size material of some to be returned preceding storehouse again in the material by sieve seam hole, thereby having in the mill grinding phenomenon because material makes it enter the storehouse, back in storehouse by being pressed through sieve seam hole in the past.Because mill inner ventilation through annular slab the time, only can pass through from the centre bore of this plate, and flowing resistance is bigger, influences the flow velocity of material, this will cause yielding poorly, the energy consumption height in addition.

The utility model content

The technical problems to be solved in the utility model provides a kind of cement grinding mill partition device for barn, and this device not only reduces the generation of crossing the grinding phenomenon in the mill, and the flow velocity of material is fast.

In order to solve the problems of the technologies described above, a kind of cement grinding mill partition device for barn of the utility model, it comprises grate plate, annular slab, meal burden-guiding cone and fine powder burden-guiding cone, the neighboring of grate plate and annular slab is arranged on the inwall of grinding machine, the big end of meal powder guiding taper and the big end of fine powder powder guiding taper are measure-alike and link, also comprise the material sieve and regulate aerofoil, described annular slab be circumferentially with at interval identical air vent, the gabarit of the air vent group that air vent constituted becomes the fan annular, centre is respectively equipped with bolt near a neighboring, interval between adjacent air vent group and the side of inner rim, regulate aerofoil and be the fan annular, be provided with deep-slotted chip breaker near its long arc flank side surface, this groove is sleeved on the bolt that described annular slab neighboring one side is provided with, be provided with through hole near the short arc flank side surface of adjusting aerofoil, this borehole jack is contained on the bolt that described annular slab inner rim one side is provided with, nut check makes the adjusting aerofoil be fixed on the annular slab on the bolt, the material sieve is the stage body planform, its side is provided with the seam hole of combing, the material sieve is between grate plate and annular slab, the big end of material sieve is arranged on the inwall of grinding machine, and its small end is arranged on the connection place of the big end of the big end of described meal powder guiding taper and fine powder powder guiding taper.

The stage body planform in seam hole because the material of partition device for barn sieve is combed for the side is provided with, the small grain size material not only can be by the comb seam hole that is pressed through the material sieve, but also can be by after medium and small particle sizes strip is played certain altitude, under the effect of self gravitation, slide to the meal burden-guiding cone from top to bottom on the compass screen surface that the stage body that sieves from material tilts, the material of the middle granularity on the compass screen surface is imported preceding storehouse by the meal burden-guiding cone and carries out fragmentation, and the small grain size material that falls from the sieve seam hole of compass screen surface is imported the storehouse, back by the fine powder burden-guiding cone and grinds; Simultaneously because the cover surface that the stage body of material sieve tilts is bigger than the sieve plate area of prior art.Therefore compared with prior art, the amount that the material of small grain size filters out is more, thereby significantly reduces the generation of grinding phenomenon.Because annular slab is provided with the air vent group, so the mill inner ventilation resistance is little, accelerated the speed of small grain size material by sieve seam hole, make the small grain size material enter into the storehouse, back in the past storehouse as early as possible, so the flow velocity of material is fast.Adjust the position of regulating the relative annular slab air vent of aerofoil, the ventilation that can regulate annular slab makes mill inner ventilation reach the most rational state, helps reducing the generation of crossing the grinding phenomenon in the mill.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the structural representation of the utility model cement grinding mill partition device for barn.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is that the B of Fig. 1 is to enlarged drawing.

Fig. 4 is the partial enlarged drawing of Fig. 2.

1. grinding mill barrels among the figure, 2. grate plate, 3. material sieve, 4. meal burden-guiding cone, 5. fine powder burden-guiding cone, 6. nut is 7. regulated aerofoil, 8. annular slab, 9. nut, 10. bolt, 11. deep-slotted chip breakers, 12. bolts, 13. air vents, 14. air vent groups.

The specific embodiment

Among Fig. 1, the neighboring of grate plate 2 and annular slab 8 is arranged on the inwall of grinding mill barrel 1, annular slab 8 be circumferentially with at interval identical air vent 13, the gabarit of the air vent group 14 that is made of air vent becomes the fan annular, as Fig. 2, Fig. 3 and shown in Figure 4, centre is respectively equipped with bolt 10 and bolt 12 near a neighboring, interval that adjacent air vent group 14 is asked and the side of inner rim.Regulate aerofoil 7 for being provided with deep-slotted chip breaker 11 near fan annular, its long arc flank side surface, this groove is sleeved near the bolt 10 that centre is provided with one side of described annular slab 8 neighborings, be provided with through hole near the short arc flank side surface of adjusting aerofoil 7, this borehole jack is adorned near the bolt 12 that centre is provided with described annular slab inner rim one side, nut 6 and nut 9 are locked at respectively adjusting aerofoil 7 are fixed on the annular slab 8, as Fig. 2 and shown in Figure 4.Total draught area of the air vent group 14 that annular slab 8 is provided with, generally big than technological requirement will be turned total draught area down usually in the ordinary production operation process.If turn the draught area of annular slab 8 down, can be by being the center of circle with bolt 12, rotate to regulate aerofoil 7 its part is overlapped with the part of air vent group 14, thereby reach the purpose that the draught area of adjusting annular slab 8 reduces, make mill inner ventilation reach the most rational state.The big end of meal powder guiding taper 4 and the big end of fine powder powder guiding taper 5 are measure-alike and link.Material sieve 3 is combed for stage body planform, its side are provided with and is stitched the hole, material sieve 3 is between grate plate 2 and annular slab 8, the big end of material sieve 3 is arranged on the inwall of grinding mill barrel 1, and its small end is arranged on the connection place of the big end of the big end of meal powder guiding taper 4 and fine powder powder guiding taper 5.During work, partition device for barn rotates with grinding machine, the material of coarsegrain at first carries out pre-separation by grate plate 2, the material of coarsegrain is stayed proceeded in the preceding storehouse to grind, in the comb hole of material by grate plate 2 of small grain size enter grate plate 2 and material and sieve in the space between 3, its small grain size material not only can be through being pressed through the comb seam hole of material sieve 3, but also can be by after medium and small particle sizes strip is played certain altitude, under the effect of self gravitation, slide to meal burden-guiding cone 4 from top to bottom on the compass screen surface that tilts from the stage body of material sieve 3, the material of the middle granularity on the compass screen surface is imported preceding storehouse by meal burden-guiding cone 4 and carries out fragmentation, and the material of the small grain size that falls from the sieve seam hole of compass screen surface is imported the storehouse, back by fine powder burden-guiding cone 5 and grinds; The cover surface that tilts because of the stage body of material sieve 3 is bigger than the sieve plate area of prior art.Therefore small grain size is more from the amount that material filters out, and this will significantly reduce the generation of grinding phenomenon.Since annular slab 8 be circumferentially with air vent group 14, the mill inner ventilation resistance is little, this has accelerated the speed of small grain size material by sieve seam hole, make the small grain size material enter into the storehouse, back in the past storehouse as early as possible, help reducing the generation of crossing the grinding phenomenon in the mill, improved output, cut down the consumption of energy.

Claims

1. cement grinding mill partition device for barn, it comprises grate plate, annular slab, meal burden-guiding cone and fine powder burden-guiding cone, the neighboring of grate plate and annular slab is arranged on the inwall of grinding machine, the big end of meal powder guiding taper and the big end of fine powder powder guiding taper are measure-alike and link, it is characterized in that: also comprise the material sieve and regulate aerofoil, described annular slab be circumferentially with at interval identical air vent, the gabarit of the air vent group that air vent constituted becomes the fan annular, centre is respectively equipped with bolt near a neighboring, interval between adjacent air vent group and the side of inner rim, regulate aerofoil and be the fan annular, be provided with deep-slotted chip breaker near its long arc flank side surface, this groove is sleeved on the bolt that described annular slab neighboring one side is provided with, be provided with through hole near the short arc flank side surface of adjusting aerofoil, this borehole jack is contained on the bolt that described annular slab inner rim one side is provided with, nut check makes the adjusting aerofoil be fixed on the annular slab on the bolt, the material sieve is the stage body planform, its side is provided with the seam hole of combing, the material sieve is between grate plate and annular slab, the big end of material sieve is arranged on the inwall of grinding machine, and its small end is arranged on the connection place of the big end of the big end of described meal powder guiding taper and fine powder powder guiding taper.