CN102380444A - Outer circulation classifying system of direct-flow superfine hoop-roller mill - Google Patents
Outer circulation classifying system of direct-flow superfine hoop-roller mill Download PDFInfo
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- CN102380444A CN102380444A CN2011103549430A CN201110354943A CN102380444A CN 102380444 A CN102380444 A CN 102380444A CN 2011103549430 A CN2011103549430 A CN 2011103549430A CN 201110354943 A CN201110354943 A CN 201110354943A CN 102380444 A CN102380444 A CN 102380444A
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Abstract
The invention discloses an outer circulation classifying system of a direct-flow superfine hoop-roller mill. The system comprises a feed mechanism, a grinding host and a classifier, wherein the classifier is arranged outside the grinding host; the upper part of the grinding host is connected with the feed mechanism; the lower part of the grinding host is communicated with the classifier; a return port of the classifier is communicated with the feed mechanism; a host shell is mounted between a host upper cover and a host base; a grinding roller frame of a grinding roller is mounted on a spindle; the upper and lower ends of the spindle are supported by the upper and lower bearing positions on the host upper cover and the host base; a grinding loop is directly connected with the host shell in a gapless manner; and a negative pressure gas port is formed on the host base. In the invention, as the classifier is arranged outside the grinding host, the grinding host is fed from the upper part, the material is subjected to multi-layer grinding and sucked to the classifier outside the host from the lower part, the discharged material does not leak, and more materials can be fed; and moreover, the grinding efficiency is improved, the noise is reduced, and the mechanical loss is low while the yield is high.
Description
(1) technical field:
The present invention and a kind of powder process equipment internal structure are specially the ultra-fine ring roller mill of a kind of single flow outer circulation hierarchy system.
(2) background technology:
Ring roller mill system of processing is the equipment that is used for breeze pulverizing and then production superfine powder, uses very extensive.
The hierarchy system of circulation in the superfine powder of ring roller mill system of processing is collected and adopted; This type ring roller mill all adopt grader on the abrasive dust main frame structure and constitute a production system with the abrasive dust main frame; Material drops between abrasive dust main frame and grader; Grind the back through the multilayer of main frame ring roller and arrive abrasive dust main frame bottom, owing to be formed with the gap between host housing and the bull ring, under the suction function of system; The powder quilt is from pumping to the grader classification between the gap, classification residue meal falls into and continues in the abrasive dust main frame to grind.
The negative pressure gas port (with atmosphere) of circulation classification system is located at abrasive dust main frame bottom and is formed Open architecture in said; This Open architecture has restricted the output of ultra-fine ring roller mill; Because want the negative pressure pumpability of matching system, so the injected volume of material is unsuitable excessive, the material injected volume is excessive; The powder that can not in time pump then flows out from abrasive dust main frame bottom and causes waste; And owing to can not throw in too much material, the bed of material between ring roller and the bull ring is thin, causes therefore that the vibrations of abrasive dust main frame are big, noise is high, grinding efficiency is low, output is little, mechanical loss is big.
Moreover; Owing to adopt interposed structure on the grader; The grinding roller frame of said ring roller mill can only adopt single supporting construction; The support (in the lower position of main shaft) that is the main shaft of grinding roller frame is merely the bearing position on the abrasive dust main frame base, so the rotational stability of grinding roller frame is not enough, also is to cause the big and high major reason of noise of abrasive dust main frame vibrations.
(3) summary of the invention:
Grind the weak point of traditional hierarchy system to the ring roller, the objective of the invention is to design and a kind ofly increase production capacity, prevent that material from leaking outside, improving the ultra-fine ring roller mill of the single flow outer circulation hierarchy system of the stability of a system.
Can realize the ultra-fine ring roller mill of the single flow outer circulation hierarchy system of above-mentioned purpose; Comprise feeding mechanism, abrasive dust main frame and grader; Different is that said grader is placed on the abrasive dust main frame; Said abrasive dust main frame top connects feeding mechanism, and said abrasive dust main frame bottom is communicated with grader through carrier pipe, and the feedback outlet of said grader is communicated with feeding mechanism.
Powder is employed in the outer classification cycle of abrasive dust main frame, can realize that classification process carries out under the environment of a sealing, thoroughly solves the material leakage problem.
A kind of structure that satisfies the abrasive dust main frame of classification outer circulation requirement is: the host housing of abrasive dust main frame is installed on the main frame base; Grinding roller that matches and bull ring are located in the said host housing, and said grinding roller is installed on the grinding roller frame, and the grinding roller frame is installed on the main shaft; The lower end of said main shaft is supported through the lower bearing position on the main frame base and is installed; Said bull ring does not directly have the gap installation with host housing and is connected, and said main frame base offers the negative pressure gas port, and said negative pressure gas port is connected carrier pipe.
Said host housing top is provided with supporting mechanism, and the upper end of said main shaft is supported through the upper bearing (metal) position that is provided with on the supporting mechanism and installed.
Said supporting mechanism is the main frame loam cake that is installed on the host housing.
The setting of said main frame loam cake does not influence the input of material, can on main frame, cover and offer charging aperture, and said charging aperture is communicated with feeding mechanism
For improving abrasive dust efficient, said grinding roller is made as two-layer or multilayer, offers on the said bull ring and two mill roads or many mill roads two-layer or that the multilayer grinding roller is corresponding.
Said grinding roller is three layers, and the ground floor grinding roller is installed on the grinding roller frame, and second, third layer grinding roller is installed on down the grinding roller frame, and article one mill road is opened in bull ring, and second, third mill road is opened in down bull ring.
A kind of structure of said feeding mechanism comprises the batch mixing bucket, and said batch mixing bucket connects the abrasive dust main frame through feed pipe, and the feedback outlet of said grader is communicated with the batch mixing bucket through the feed back spiral organ.
Advantage of the present invention:
1, single flow of the present invention ultra-fine ring roller mill outer circulation hierarchy system adopts grader to be placed on the structure of abrasive dust main frame; Make the abrasive dust main frame adopt the top charging, material is drawn into grader from the bottom after multilayer is ground, and system does not receive grader classification quantitative limitation; Discharging does not leak outside; So under equal service condition, can throw in more material, can make material bed more thicker between grinding roller and the bull ring, improved grinding efficiency; Alleviated mechanical collision and wearing and tearing between grinding roller and the bull ring, so abrasive dust main frame noise is low, mechanical loss is little, output is higher.
2, the bull ring of abrasive dust main frame of the present invention and host housing do not have the gap and install and is connected, have improved the integral rigidity of connection, have prolonged the service life of abrasive dust main frame.
(4) description of drawings:
Fig. 1 is the structural representation of one embodiment of the present invention.
Fig. 2 is the internal structure sketch map of abrasive dust main frame in Fig. 1 embodiment.
Figure number sign: 1, host housing; 2, main shaft; 3, main frame base; 4, lower bearing position; 5, negative pressure gas port; 6, main frame loam cake; 7, upper bearing (metal) position; 8, feed pipe; 9, grinding roller; 10, go up the grinding roller frame; 11, following grinding roller frame; 12, go up bull ring; 13, following bull ring; 14, abrasive dust main frame, 15, grader; 16, carrier pipe; 17, batch mixing bucket; 18, feed back spiral organ; 19, reductor; 20, drive motors; 21, feed auger device; 22, storage bin hopper; 23, spiral gatherer.
(5) specific embodiment:
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
The ultra-fine ring roller mill outer circulation of single flow of the present invention hierarchy system is the part-structure of the ultra-fine ring roller mill of single flow dust collecting system; Comprise batch mixing bucket 17, abrasive dust main frame 14 and grader 15; Batch mixing bucket 17 is located on the abrasive dust main frame 14; Grader 15 is located at outside the abrasive dust main frame 14 and the position is higher than batch mixing bucket 17, and is as shown in Figure 1.
Said abrasive dust main frame 14 comprises host housing 1, main frame loam cake 6, main frame base 3, main shaft 2, grinding roller 9 and bull ring; The upper and lower opening of said host housing 1 is connected and installed with main frame loam cake 6 and main frame base 3 respectively through flange; Said main shaft 2 vertically places on the central axis of host housing 1; The upper/lower terminal of main shaft 2 supports installation respectively by upper and lower bearing position 7,4; Upper and lower bearing position 7,4 is located at the center of main frame loam cake 6 and main frame base 3 respectively; Through bar shaped key and main shaft 2 coaxial being connected, the outer conical surface of the bull ring corresponding with grinding roller 9 positions cooperates the back fixed installation to the grinding roller frame of said grinding roller 9 with the internal conical surface of host housing 1, as shown in Figure 2 in host housing 1.
The charging aperture of said abrasive dust main frame 14 is opened on the main frame loam cake 6, and charging aperture splits 7 both sides, upper bearing (metal) position, and two charging apertures are communicated with batch mixing bucket 17 through Y type feed pipe 8; The negative pressure gas port 5 of said abrasive dust main frame 14 is that discharging opening is opened on main frame base 3 sides; Negative pressure gas port 5 is communicated with carrier pipe 16; Said carrier pipe 16 is communicated with the charging aperture of grader 15; The feedback outlet of grader 15 is communicated with batch mixing bucket 17 through feed back spiral organ 18, and the discharging opening of grader 15 is communicated with spiral gatherer 23 through pipeline, like Fig. 1, shown in Figure 2.
Said grinding roller frame is divided into grinding roller frame 10 and following grinding roller frame 11, and last grinding roller frame 10 is installed the equally distributed grinding roller 9 of one deck circumference (ground floor grinding roller 9), and two layers of equally distributed grinding roller 9 of circumference (second, third layer grinding roller 9) are installed on the following grinding roller frame 11; Corresponding with grinding roller 9 positions; Bull ring is divided into bull ring 12 and following bull ring 13; Offering a mill road (article one mill road) on the last bull ring 12 cooperates with the ground floor grinding roller 9 of last grinding roller frame 10; Offer two mill roads (second, third mill road) on the following bull ring 13 and cooperate with second, third layer grinding roller 9 of following grinding roller frame 11, as shown in Figure 2.
The lower end of said main shaft 2 and connects drive motors 20 through reductor 19 outside main frame base 3 is stretched out in lower bearing position 4; Said batch mixing bucket 17 is communicated with storage bin hopper 22 through feed auger device 21, and storage bin hopper 22 positions are higher than batch mixing bucket 17, like Fig. 1, shown in Figure 2.
The course of work of the present invention:
1, electric motor starting, main shaft 2 rotations drive grinding roller 9 and on bull ring, roll.
2, particle is got into the epicoele of abrasive dust main frame 14 through main frame loam cake 6 by feed pipe 8 from batch mixing bucket 17.
3, particle is after ground floor, the second layer and the 3rd layer of grinding roller 9 grind with bull ring, and fines falls into the cavity of resorption of abrasive dust main frame 14.
4, the grader 15 fines pumped to abrasive dust main frame 14 through carrier pipe 16 of system's negative pressure carries out classification, and the remaining meal of classification returns batch mixing bucket 17 through feed back spiral organ 18 and participates in grinding next time.
This shows that whole particle classifying process is in the closed system, and the powder leakage problem takes place never again, system rigidity is good, and running is steady, and the input and output amount is big, is the upgrading products of traditional ultra-fine ring roller mill.
Claims (8)
1. the ultra-fine ring roller of single flow grinds the outer circulation hierarchy system; Comprise feeding mechanism, abrasive dust main frame (14) and grader (15); It is characterized in that: said grader (15) is placed on abrasive dust main frame (14); Said abrasive dust main frame (14) top connects feeding mechanism, and said abrasive dust main frame (14) bottom is communicated with grader (15) through carrier pipe (16), and the feedback outlet of said grader (15) is communicated with feeding mechanism.
2. the ultra-fine ring roller mill of single flow according to claim 1 outer circulation hierarchy system; It is characterized in that: the host housing (1) of said abrasive dust main frame (14) is installed on the main frame base (3); Grinding roller that matches (9) and bull ring are located in the said host housing (1), and said grinding roller (9) is installed on the grinding roller frame, and the grinding roller frame is installed on the main shaft (2); The lower end of said main shaft (2) is supported through the lower bearing position (4) on the main frame base (3) and is installed; Said bull ring is directly installed with the no gap of host housing (1) and is connected, and said main frame base (3) offers negative pressure gas port (5), and said negative pressure gas port (5) is connected carrier pipe (16).
3. the ultra-fine ring roller mill of single flow according to claim 2 outer circulation hierarchy system, it is characterized in that: said host housing (1) top is provided with supporting mechanism, and the upper end of said main shaft (2) is supported through the upper bearing (metal) position (7) that is provided with on the supporting mechanism and is installed.
4. the ultra-fine ring roller mill of single flow according to claim 3 outer circulation hierarchy system, it is characterized in that: said supporting mechanism is for being located at the main frame loam cake (6) on the host housing (1).
5. the ultra-fine ring roller mill of single flow according to claim 4 outer circulation hierarchy system, it is characterized in that: offer charging aperture on the said main frame loam cake (6), said charging aperture is communicated with feeding mechanism.
6. according to the ultra-fine ring roller mill of any described single flow in the claim 2～5 outer circulation hierarchy system; It is characterized in that: said grinding roller (9) is two-layer or multilayer, offers on the said bull ring and two mill roads or many mill roads two-layer or that multilayer grinding roller (9) is corresponding.
7. the ultra-fine ring roller mill of single flow according to claim 6 outer circulation hierarchy system; It is characterized in that: said grinding roller (9) is three layers; Ground floor grinding roller (9) is installed on grinding roller frame (10); Second, third layer grinding roller (9) is installed on down grinding roller frame (11), and article one mill road is opened in bull ring (12), and second, third mill road is opened in down bull ring (13).
8. according to the ultra-fine ring roller mill of any described single flow in the claim 1～5 outer circulation hierarchy system; It is characterized in that: said feeding mechanism comprises batch mixing bucket (17); Said batch mixing bucket (17) connects abrasive dust main frame (14) through feed pipe (8), and the feedback outlet of said grader (15) is communicated with batch mixing bucket (17) through feed back spiral organ (18)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103549430A CN102380444A (en) | 2011-11-10 | 2011-11-10 | Outer circulation classifying system of direct-flow superfine hoop-roller mill |
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| CN2011103549430A CN102380444A (en) | 2011-11-10 | 2011-11-10 | Outer circulation classifying system of direct-flow superfine hoop-roller mill |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872962A (en) * | 2012-10-25 | 2013-01-16 | 韩清洁 | Method for extracting three-way catalyst platinum group metal |
| CN102962116A (en) * | 2012-12-04 | 2013-03-13 | 王今奇 | Multilayer vertical mill |
| CN102989555A (en) * | 2012-12-12 | 2013-03-27 | 肖先成 | Eccentric grinding roller single and double support ring roller mill |
| WO2013067895A1 (en) * | 2011-11-10 | 2013-05-16 | 桂林晟兴机械制造有限公司 | Direct-current, double-support and ultra-fine ring roller grinder |
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| JPH0483542A (en) * | 1990-07-26 | 1992-03-17 | Ishikawajima Harima Heavy Ind Co Ltd | Method for stopping coal mill |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067895A1 (en) * | 2011-11-10 | 2013-05-16 | 桂林晟兴机械制造有限公司 | Direct-current, double-support and ultra-fine ring roller grinder |
| CN102872962A (en) * | 2012-10-25 | 2013-01-16 | 韩清洁 | Method for extracting three-way catalyst platinum group metal |
| CN102872962B (en) * | 2012-10-25 | 2016-02-10 | 韩清洁 | A kind of device extracting three-way catalyst platinum group metal |
| CN102962116A (en) * | 2012-12-04 | 2013-03-13 | 王今奇 | Multilayer vertical mill |
| CN102962116B (en) * | 2012-12-04 | 2015-12-09 | 相雪 | Multilayer vertical mill |
| CN102989555A (en) * | 2012-12-12 | 2013-03-27 | 肖先成 | Eccentric grinding roller single and double support ring roller mill |
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Application publication date: 20120321 |