CN2585693Y - Ball screener of ball grinder - Google Patents
Ball screener of ball grinder Download PDFInfo
- Publication number
- CN2585693Y CN2585693Y CN 02293263 CN02293263U CN2585693Y CN 2585693 Y CN2585693 Y CN 2585693Y CN 02293263 CN02293263 CN 02293263 CN 02293263 U CN02293263 U CN 02293263U CN 2585693 Y CN2585693 Y CN 2585693Y
- Authority
- CN
- China
- Prior art keywords
- ball
- sieve
- pipe
- ball mill
- screen casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a ball screener of a ball grinder, which is characterized in that a sieve tube provided with sieve holes is connected to an end cover at the outlet side of a barrel body of the ball grinder. The lower end of the sieve tube is butted with a ball receiving tube; a dust suction tube or a dust suction hole can also be arranged on the ball receiving tube. The utility model has the advantages of simple structure, convenient operation, high work efficiency, less workload of disassembly and assembly, and low cost.
Description
(1) technical field
The utility model relates to a kind of ball mill corollary apparatus that is mainly used in thermal power plant or cement plant, and particularly a kind of energy Automatic sieve is selected the ball mill sieve ball device of defective steel ball in the ball mill (also being low speed coal mill).
(2) background technology
Theoretical research and experiment all confirm, when steel ball size has lost the ability that grinds coal dust during less than 20 millimeters, effect such as bigger slightly distortion, damaged steel ball, metal sundries is also little, their existence can only increase power consumption, reduce and exert oneself, also strengthened the rate of wear of pipeline, the reduction owing to exert oneself also causes few generating sometimes, loses bigger.If can regularly screen (as half a year once), will produce favorable economic benefit.
At present, the method for the inner small ball of screening ball mill roughly has following several: (1) all throws away steel ball, reinstalls after the hand picking, and work efficiency is very low; (2) when all throwing away, rotary screen is equipped with in the outside, reloads qualified steel ball after the separation, but this also wants dismounting pan feeding portion or discharging portion, and workload is bigger; (3) ball mill is provided with manhole on cylindrical shell, on this hole screen cloth can be installed, but workload is big during the dismounting screen cloth, and mesh is easily stifled; (4) on the fan-shaped liner plate of outlet side end cap, have sulculus, after steel ball in service enters sulculus, in the gap between the inner surface of inflow spiral hollow sleeve appearance and end cap axle journal, steel ball falls from axle journal top, enter receipts ball case through the two-stage dedusting, this is present state-of-the-art method, but structure is complicated, and is special as the spiral hollow sleeve and the liner plate of consumable accessory.
(3) summary of the invention
The purpose of this utility model is exactly that a kind of efficient height, the disassemble and assemble work amount designed at the deficiency of above-mentioned existence are little, the sieve ball device of low cost of manufacture.
The purpose of this utility model is achieved in that
A kind of ball mill sieve ball device connects a screen casing that has a sieve aperture on the outlet side end cap of ball mill barrel, the lower end butt joint one of the screen casing pipe of receiving.
The utility model is simple in structure, and is easy to use, high efficiency, little, the low cost of manufacture of disassemble and assemble work amount.
(4) description of drawings
Fig. 1 is the utility model structural representation
(5) specific embodiment
A kind of ball mill sieve ball device connects a screen casing 3 that has a sieve aperture on the outlet side end cap 6 of ball mill barrel 5, screen casing 3 go out pommel butt joint one pipe 1 of receiving.Screen casing 3 has sieve aperture at end face and direction of motion single face, it is several that the shape of sieve aperture mainly contains circular hole, grid and elongated hole, can do the hole of one to three kind of shape on the same screen casing, the inlet side of screen casing 3 is by gusset piece and liner plate 4 screw Bolt Connection, going out the pommel docks with the pipe 1 of receiving, with three link rods 7 butt end is fixed on the spiral hollow sleeve 8 simultaneously,, also screen casing 3 can be made attachable two sections for easy to loading and unloading.The screen casing 3 and pipe 1 joint of receiving are equipped with sealing device 2, and the top of the pipe 1 of receiving is provided with sweep-up pipe 10 or air suction opening 13.The duct bottom of discharging portion 9 has closed hole.
During the sieve ball, starting ball mill rotates, some steel balls more smaller than sieve aperture, steel disc and steel cuttings fall into screen casing 3, and screen casing 3 is with cylindrical shell 5 rotations, when screen casing 3 goes to top, bead flow in the pipe 1 of receiving, the pipe lower end of receiving connects an extension tube attached 11, extension tube attached 11 with receive ball case 12 and be connected, the pipe of receiving is interior owing to the coherence of steel ball and the gradient of pipe, small ball tumbles to extension tube attached 11, falls at last to receive ball case 12.Because the swabbing action of blower fan, the low amounts of dust in the pipe of receiving siphons away by sweep-up pipe or air suction opening.Outside little air enters, and also helps pumping dust, and very little to the influence of system, can ignore.
Small ball mostly concentrates on the port of export, generally passes through 4-6 hour screening, and the small ball more than 95% can be removed.The sieve ball device is in operation and forms certain local resistance, and the design capacity of blower fan adequate remedy does not generally need to reduce coal-supplying amount.When the user allows not throw the raw coal screening, can open sweep-up pipe 10 or air suction opening 13 slightly.Do not throw the screen ball and generally need 2-3 hour.
Claims (4)
1. ball mill sieve ball device is characterized in that going up at the outlet side end cap (6) of ball mushroom machine drum body (5) and connects a screen casing (3) that has a sieve aperture, the lower end butt joint one of the screen casing pipe (1) of receiving.
2, a kind of ball mill sieve ball device as claimed in claim 1 is characterized in that described sieve aperture shape can be circular hole, elongated hole or grid.
3, a kind of ball mill sieve ball device as claimed in claim 1 is characterized in that also can adorning a sweep-up pipe (10) or air suction opening (13) on the described pipe (1) of receiving.
4, as claim 1,2 or 3 described a kind of ball mill sieve ball devices, it is characterized in that the duct bottom of discharging portion (9) has closed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02293263 CN2585693Y (en) | 2002-12-17 | 2002-12-17 | Ball screener of ball grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02293263 CN2585693Y (en) | 2002-12-17 | 2002-12-17 | Ball screener of ball grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2585693Y true CN2585693Y (en) | 2003-11-12 |
Family
ID=33751298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02293263 Expired - Fee Related CN2585693Y (en) | 2002-12-17 | 2002-12-17 | Ball screener of ball grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2585693Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331195A (en) * | 2013-06-13 | 2013-10-02 | 吴江市物华五金制品有限公司 | Sanding machine capable of automatically screening ground beads |
| CN115155745A (en) * | 2022-05-27 | 2022-10-11 | 华能国际电力股份有限公司井冈山电厂 | Ball screening device for low-speed steel ball coal mill |
-
2002
- 2002-12-17 CN CN 02293263 patent/CN2585693Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331195A (en) * | 2013-06-13 | 2013-10-02 | 吴江市物华五金制品有限公司 | Sanding machine capable of automatically screening ground beads |
| CN115155745A (en) * | 2022-05-27 | 2022-10-11 | 华能国际电力股份有限公司井冈山电厂 | Ball screening device for low-speed steel ball coal mill |
| CN115155745B (en) * | 2022-05-27 | 2023-10-10 | 华能国际电力股份有限公司井冈山电厂 | Ball screening device for low-speed steel ball coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |