A vertical mill for grinding slag fines

Abstract

A kind of slag micro-powder vertical mill, including lower shell, middle shell and upper shell, the lower shell, the middle shell and the upper shell are welded together, and the lower shell, the middle shell and the upper shell are communicated, the middle shell is equipped with feed inlet and discharge port, the lower shell is provided with speed reducer, the speed reducer is installed with main motor, the middle shell is provided with access door, the lower shell is equipped with air inlet, the lower shell is provided with mounting seat, and the mounting seat is installed with fan.By micro-powder moves to millstone edge, iron block impurities in micro-powder cannot be blown up due to its own weight is big, and fall into receiving plate and be moved by stirring ring rotation and be moved into discharge pipe and be discharged, realize impurity separation, to ensure micro-powder quality.

Description

TECHNICAL FIELD

[0001] The present application relates to a vertical mill, in particular to a slag powder vertical mill. BACKGROUND

[0002] Slag powder is processed by slag grinding, which can be used as a new admixture of high-performance concrete, and has the advantages of improving the performance of concrete. The slag powder vertical mill is the core equipment in the slag powder production, which integrates fine crushing, grinding, drying, powder selection and conveying, ensuring the continuity and stability of slag powder production and improving the grinding efficiency of slag powder.

[0003] The patent with the patent authorization announcement No. CN214487172U discloses a vertical grinding device for slag powder production. The patent can uniformly disperse the material entering the grinding disc around the distribution cone, improve the uniformity of the scattered material, and avoid the accumulation of the material at the center of the grinding disc, thereby improving the grinding efficiency to a certain extent. However, the patent still has some shortcomings in actual use. When grinding, the patent cannot separate the iron blocks and other impurities mixed in the material powder, which causes the impurities to be discharged together with the material powder, affecting the quality.

[0004] Therefore, it is urgent to provide a slag powder vertical mill capable of removing impurities. SUMMARY

[0005] In order to overcome the shortcomings of the above-mentioned patent, which cannot separate the iron blocks and other impurities mixed in the material powder during grinding, causing the impurities to be discharged together with the material powder, affecting the quality, the present application provides a slag powder vertical mill capable of separating impurities.

[0006] To achieve the above problems, the present application adopts the following technical scheme: a slag powder vertical mill, comprising a lower shell, a middle shell and an upper shell, the lower shell, the middle shell and the upper shell are mutually welded, and the lower shell, the middle shell and the upper shell are communicated, the middle shell is provided with a feeding port, the upper shell is provided with a discharging port, the lower shell is provided with a speed reducer, the speed reducer is installed with a main motor, the middle shell is provided with an access door, the lower shell is provided with an air inlet, the lower shell is provided with a mounting seat, the mounting seat is installed with a fan, the middle shell is installed with a grinding disc, the middle shell is provided with a grinding mechanism, the grinding mechanism is installed with a hydraulic system together with the lower shell, the upper shell is rotatably provided with a separation impeller, the separation impeller is provided with a material collecting hopper, the upper shell is provided with a secondary motor, the output shaft of the secondary motor is connected with the separation impeller, and the middle shell is provided with a discharging assembly.

[0007] As preferred, the discharging assembly comprises a receiving plate, which is arranged in the middle shell, and the receiving plate is provided with air guide holes, and the receiving plate is connected with and communicated with a discharging pipe, and the receiving plate is provided with a stirring ring.

[0008] As preferred, the receiving plate is located below the grinding disc.

[0009] As preferred, the grinding disc is fixedly connected with a fixed plate, and the fixed plate is provided with a distributing wheel.

[0010] As preferred, the air guide holes of the receiving plate are mounted with air guide pipes, and the air guide pipes are provided with air outlet cylinders.

[0011] As preferred, the air inlet is provided with a filter plate, and the filter plate is fixedly connected with a clamping plate.

[0012] As preferred, the discharging pipe is provided with a dirt-proof cover.

[0013] As preferred, the secondary motor is provided with a protective shell.

[0014] Compared with the prior art, the present application has the following technical effects: 1. When the micro powder moves to the edge of the grinding disc, the iron blocks in the micro powder cannot be blown up by the hot air due to their own large weight, but fall into the receiving plate and are stirred into the discharging pipe by the stirring ring for discharge, realizing the separation of impurities and ensuring the quality of the micro powder.

[0015] 2. The distributing wheel rotates to uniformly disperse the slag concentrated in the middle of the grinding disc to the periphery, avoiding the accumulation of slag and facilitating the grinding mechanism to grind, and ensuring the grinding effect.

[0016] 3. The air guide pipe and the air outlet cylinder concentrate and blow out the hot air, avoiding the blocking of the air guide holes by the micro powder and impurities.

[0017] 4. The filter plate can filter the external air drawn in by the fan, thereby intercepting the impurities in the air and avoiding the impurities from being drawn in to affect the operation of the fan. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

[0019] Figure 2 is a schematic diagram of the three-dimensional cross-sectional structure of the main motor, fan and separating impeller of the present application.

[0020] Figure 3 is a schematic diagram of the three-dimensional cross-sectional structure of the receiving plate, grinding disc and discharging pipe of the present application.

[0021] Figure 4 is a schematic diagram of the three-dimensional cross-sectional structure of the grinding disc, fixed plate and distributing wheel of the present application.

[0022] Figure 5 Fig. 1 is a schematic diagram of the sectional structure of the material receiving plate, air guide pipe and air outlet cylinder of the present application.

[0023] Figure 6 Fig. 2 is a schematic diagram of the sectional structure of the lower shell, filter plate and clamping plate of the present application.

[0024] Reference signs: 1: main motor, 101: feeding port, 102: discharging port, 2: speed reducer, 3: lower shell, 4: middle shell, 401: maintenance door, 5: upper shell, 6: mounting seat, 7: air inlet, 8: fan, 9: material receiving plate, 10: grinding disc, 11: grinding mechanism, 1101: hydraulic system, 12: material collecting hopper, 13: separating impeller, 14: secondary motor, 15: discharging pipe, 16: stirring ring, 17: fixed plate, 18: distributing wheel, 19: air guide pipe, 20: air outlet cylinder, 21: filter plate, 22: clamping plate, 23: anti-fouling cover, 24: protective shell. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0026] Example 1: Please refer to Figures 1-3The utility model provides a kind of slag micro powder vertical mill, including lower shell 3, middle shell 4 and upper shell 5, the lower shell 3, the middle shell 4 and the upper shell 5 are mutually welded group, and the lower shell 3, the middle shell 4 and the upper shell 5 are communicated, the middle shell 4 middle rear side is equipped with feed inlet 101, the upper shell 5 top front side is equipped with discharge port 102, and slag micro powder is discharged from discharge port 102 after entering lower shell 3, middle shell 4 and upper shell 5 by feed inlet 101 and processing, lower shell 3 lower part is provided with speed reducer 2, speed reducer 2 rear side is equipped with main motor 1, and main motor 1 is used to drive whole device, and middle shell 4 middle front side is provided with access door 401, and lower shell 3 upper front side is equipped with air inlet 7, and lower shell 3 is provided with mounting seat 6 in upper part, and mounting seat 6 top is equipped with fan 8, and fan 8 can generate hot air to dry slag micro powder and drive slag micro powder to go up in shell, and grinding disc 10 is installed in middle shell 4, and middle shell 4 is provided with grinding mechanism 11, and slag micro can be ground by grinding mechanism 11 and grinding disc 10 cooperation, and grinding mechanism 11 is jointly installed with lower shell 3 and is equipped with hydraulic system 1101, and hydraulic system 1101 provides pressure for grinding mechanism 11, so that grinding mechanism 11 can crush slag, and upper shell 5 is rotatably provided with separation impeller 13, and separation impeller 13 can transport micro powder into upper shell 5 and carry out screening, and separation impeller 13 is provided with collecting hopper 12, and upper shell 5 is provided with secondary motor 14, and the output shaft of secondary motor 14 is connected with separation impeller 13, and secondary motor 14 drives upper shell 5 to rotate, and secondary motor 14 is equipped with protective shell 24, and protective shell 24 is used to protect secondary motor 14, and middle shell 4 is provided with discharge assembly, and discharge assembly is used to discharge sundries in micro powder.

[0027] Please refer to Figure 2 And Figure 3 , and the discharge assembly includes receiving plate 9, the receiving plate 9 is arranged in the lower part of the middle shell 4, and the receiving plate 9 is located below the grinding disc 10, and when in use, the sundries discharged on the grinding disc 10 are received by the receiving plate 9, and the receiving plate 9 is provided with 15 air guide holes which are equidistantly distributed in the circumferential direction, and the air guide holes are used for the hot air generated by the fan 8 to pass through, and the bottom front side of the receiving plate 9 is connected and communicated with a discharge pipe 15, and the discharge pipe 15 is used for discharging the sundries in the receiving plate 9, and the discharge pipe 15 is provided with an anti-fouling cover 23, and when the device is not in use, the discharge pipe 15 can be covered by the anti-fouling cover 23 to prevent foreign matter from entering, and the top of the receiving plate 9 is provided with a material stirring ring 16, and the sundries can be swept into the discharge pipe 15 by rotating the material stirring ring 16.

[0028] In operation, slag enters the middle shell 4 through the feed inlet 101 and falls onto the grinding disc 10. The grinding disc 10 then rotates, throwing the slag onto the grinding mechanism 11. Under the pressure provided by the hydraulic system 1101, the grinding mechanism 11 grinds the slag. During the grinding process, the ground slag powder is thrown to the edge of the grinding disc 10. The powder is dried by the hot air generated by the blower 8 and carried upward into the upper shell 5. Iron blocks and impurities in the powder cannot be blown away by the hot air due to their weight and fall into the receiving plate 9. They are then pushed into the discharge pipe 15 by the rotating material ring 16 for discharge, thus separating the impurities and ensuring the quality of the powder. The powder then enters the upper shell 5 and is guided by the hot air through the collection hopper 12 to the separation impeller 13. The fine slag that passes through the separation impeller 13 smoothly and is discharged from the discharge port 102. The coarse powder that does not pass through the separation impeller 13 falls back into the grinding disc 10 for grinding under the action of the separation impeller 13. This cycle is repeated to complete the entire grinding process.

[0029] Example 2: Based on Example 1, please refer to... Figure 4 The top of the grinding disc 10 is fixedly connected to a fixing plate 17 by bolts. The top of the fixing plate 17 is provided with a material distribution wheel 18. The slag behind the grinding disc 10 can be dispersed by rotating the material distribution wheel 18.

[0030] After the slag falls into the grinding disc 10, the slag concentrated in the middle of the grinding disc 10 is evenly dispersed to the surrounding area by the rotation of the material distribution wheel 18, so as to avoid the slag from piling up and facilitate the grinding mechanism 11 to grind, thus ensuring the grinding effect.

[0031] Please see Figure 5 An air guide pipe 19 is installed on the air guide hole of the receiving plate 9, and the top end of the air guide pipe 19 is connected to and communicates with an air outlet duct 20.

[0032] When the fan 8 generates hot air, the hot air is concentrated and blown out by the air guide pipe 19 and the air outlet 20 to prevent fine powder and impurities from falling into the air guide hole and clogging it.

[0033] Please see Figure 6 The air inlet 7 is equipped with a filter plate 21, which filters the air entering the lower housing 3. The top and bottom of the filter plate 21 are fixedly connected with three equally spaced clamping plates 22 by welding. The filter plate 21 can be inserted into the air inlet 7 by using the clamping plates 22, which facilitates installation and disassembly.

[0034] When the fan 8 is operating and drawing in outside air, the air can be filtered through the filter plate 21 to intercept impurities in the air and prevent them from being drawn in and affecting the operation of the fan 8.

[0035] It should be understood that the foregoing embodiments are merely illustrative of the present application and that no limitation of the scope of the present application is intended by the same. Furthermore, it should be appreciated that in the practice of the application, modifications can be made by those skilled in the art without departing from the scope of the application as taught by the foregoing disclosure.

Claims

1. A vertical mill for slag powder, characterized in that, The device includes a lower housing (3), a middle housing (4), and an upper housing (5). The lower housing (3), the middle housing (4), and the upper housing (5) are welded together and connected to each other. The middle housing (4) is provided with a feed inlet (101), and the upper housing (5) is provided with a discharge outlet (102). The lower housing (3) is provided with a reducer (2), and the reducer (2) is equipped with a main motor (1). The middle housing (4) is provided with an inspection door (401). The lower housing (3) is provided with an air inlet (7). The lower housing (3) is provided with a mounting base (6), and the mounting base (6) is equipped with a fan (8). The middle housing (4) is provided with a grinding disc (10), and the middle housing (4) is provided with a grinding mechanism (11). The grinding mechanism (11) and the lower housing (3) are jointly equipped with a hydraulic system (110). 1) A separating impeller (13) is rotatably arranged inside the upper housing (5). A collecting hopper (12) is arranged on the separating impeller (13). A secondary motor (14) is arranged on the upper housing (5). The output shaft of the secondary motor (14) is connected to the separating impeller (13). A discharge assembly is arranged in the middle housing (4). The discharge assembly includes a receiving plate (9). The receiving plate (9) is arranged inside the middle housing (4). The receiving plate (9) has air guide holes, and a discharge pipe (15) is connected and communicated on the receiving plate (9). A material feeding ring (16) is provided on the receiving plate (9). The receiving plate (9) is located below the grinding disc (10). A fixing plate (17) is fixedly connected to the grinding disc (10). A material distribution wheel (18) is provided on the fixing plate (17). An air guide pipe (19) is installed on the air guide holes of the receiving plate (9). An air outlet duct (20) is provided on the air guide pipe (19).

2. A vertical slag powder mill according to claim 1, characterized in that, A filter plate (21) is provided inside the air inlet (7), and a clamping plate (22) is fixedly connected to the filter plate (21).

3. A vertical slag powder mill according to claim 2, characterized in that, The discharge pipe (15) is equipped with a dirt cover (23).

4. A vertical slag powder mill according to claim 1, characterized in that, The secondary motor (14) is covered with a protective shell (24).

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