CN214487314U

CN214487314U - Powder selecting device of slag micro powder pulverizing system

Info

Publication number: CN214487314U
Application number: CN202120360096.8U
Authority: CN
Inventors: 赵文能
Original assignee: Qujing Malong Yaocheng Material Comprehensive Utilization Co ltd
Current assignee: Qujing Malong Yaocheng Material Comprehensive Utilization Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-10-26
Anticipated expiration: 2031-02-07

Abstract

The utility model discloses a powder selecting device of a slag micro-powder pulverizing system, which comprises a vertical mill shell, a transition cone and a top cover, wherein the top cover is provided with a powder discharging bent pipe, the upper part in the transition cone is provided with a powder selecting cone, the bottom of the powder selecting cone is provided with a bottom plate, a plurality of sieve pores are processed on the transition cone and the bottom plate, a transmission shaft is arranged in the powder selecting cone, the upper side of the powder discharging bent pipe is provided with a driving motor, and a powder selecting component is arranged on the transmission shaft in the powder selecting cone; install communicating pipe on the shrouding of powder discharge return bend, the tip of communicating pipe is installed and is received the powder ware, receives the powder ware and includes box, roof and powder discharge cone fill, and the below that the powder discharge cone was fought is provided with row material mechanism, and the below of arranging material mechanism is provided with the powder discharge chute, vertically installs the baffle on the roof that is close to communicating pipe one side, and horizontal installation has the baffle between baffle and the box inner wall, and the filter sack is installed to the baffle. The device has the advantages of easy implementation, stable operation, better powder selecting effect and remarkable fine powder collecting effect.

Description

Powder selecting device of slag micro powder pulverizing system

Technical Field

The utility model relates to a slag retrieval and utilization production facility technical field, concretely relates to powder selecting device of slay miropowder powder process system.

Background

The steel slag is a potentially valuable waste slag generated in the steel-making process, and China is a big steel-producing country and is also a big steel slag discharging country. At present, the steel slag can be reused in 3 ways, namely in the aspect of metallurgy, the steel slag can be used as a metallurgical raw material for the batching of sinter and a solvent for iron and steel making; in agriculture, as the steel slag is used as a final acceptor of a dephosphorization product in steel making, the steel slag can be used as a raw material for producing a phosphate fertilizer and is used for improving acid soil; in the aspect of building materials, because of the similarity of the components of the steel slag and the portland cement, the steel slag micro powder is applied to the production of steel slag cement, steel slag micro powder and floor bricks for bricklaying. In the prior art, the slag micropowder produced by steel slag is obtained by vertically grinding a mixture of the steel slag and water slag, the vertically ground micropowder enters a powder selecting mechanism at the top of the vertical mill along with air flow, qualified micropowder enters a storage bin after being selected by a powder selecting system, and unqualified coarse materials are discharged from the vertical mill and then are sent into the vertical mill again for secondary grinding treatment. The powder separator used in vertical mill mainly has centrifugal structure, and its principle is that the ground steel slag is blown from bottom to top by hot air, the downward force of the powder material is greater than the upward force due to the action of centrifugal force, and the powder material falls into the grinding disk and is ground again, and the fine powder material is fed into the powder collector and collected. The existing powder concentrator has the defects of low powder concentration efficiency, unsatisfactory powder concentration effect, difficult collection of fine powder and poor collection effect in the using process. Therefore, it is objectively needed to develop a powder selecting device of a slag micro-powder pulverizing system which has stable operation, better powder selecting effect and obviously improved fine powder collecting effect.

Disclosure of Invention

An object of the utility model is to provide a move stable, select powder effect better, farine collection effect is showing the selection powder device of slay miropowder powder process system who improves.

The utility model aims at realizing the powder selecting device, which comprises a vertical mill shell, wherein a transition cone and a top cover are sequentially arranged at the top of the vertical mill shell, a powder discharging elbow is movably arranged on the top cover, a powder selecting cone is arranged at the upper part in the transition cone, a bottom plate is fixedly arranged at the bottom of the powder selecting cone, a plurality of sieve pores are processed on the powder selecting cone and the bottom plate, a transmission shaft is vertically arranged on the central axis of the powder selecting cone, the lower end of the transmission shaft penetrates through the installation bottom plate and then is rotatably installed on the bottom plate, the upper end of the transmission shaft penetrates through the powder discharging elbow and then is rotatably installed on the outer wall of the powder discharging elbow, a driving motor is installed at the upper side of the powder discharging elbow, the driving motor is in transmission connection with the upper end of the transmission shaft, a powder selecting component is installed on the transmission shaft positioned in the powder selecting cone, the powder selecting component comprises an upper supporting annular plate and a lower supporting annular plate, the upper supporting annular plate and the lower supporting annular plate are installed on the transmission shaft through connecting rods at intervals, a plurality of upper blades are hinged to the outer edge of the upper supporting ring plate, a lower blade is hinged to the end of each upper blade, and the end of each lower blade is hinged to the lower edge of the lower supporting ring plate; the shrouding is installed to the tip of arranging the powder return bend, installs communicating pipe on the shrouding, and the tip of communicating pipe is installed and is received the powder ware, receives the powder ware and includes box, roof and powder discharge cone fill, and the top at the box is installed to the roof, the powder discharge cone fill is 2 at least, and the powder discharge cone fill is installed in the bottom of box, and the below that the powder discharge cone was fought is provided with row powder chute, arranges the below of material mechanism and is provided with the powder discharge chute, vertically installs the baffle on the roof that is close to communicating pipe one side, the both sides of baffle and the inner wall fixed connection of box, horizontal installation has the baffle between the baffle of keeping away from communicating pipe one side and the box inner wall, and the equipartition is provided with a plurality of through-holes on the baffle, and detachable installs the filtration sack in every through-hole, filters the downside that the sack is located the baffle, is provided with the blast pipe on the box of baffle upside.

Furthermore, a material returning cone is arranged in the vertical mill shell below the bottom plate, a guide groove is machined at the lower end of the transmission shaft, a movable shaft is movably mounted in the guide groove, a lifting cylinder is mounted between the upper end of the movable shaft and the bottom of the guide groove, and a discharging blade is mounted on the movable shaft.

Furthermore, a sieve plate is arranged on the transmission shaft below the bottom plate, and the cross section of the sieve plate is of a wave-shaped structure.

Furthermore, the interior of the powder discharge elbow is provided with a support frame shaped like a Chinese character mi.

Further, the row material mechanism is including arranging a material section of thick bamboo, go up the takeover and take over down, go up the takeover and install the top at row material section of thick bamboo, and the upper end of going up the takeover and the bottom fixed connection who arranges the powder cone and fight, take over the bottom of installing at row material section of thick bamboo down, the lower extreme of taking over is located the top of arranging the powder chute down, the end plate is installed at row material section of thick bamboo's both ends, it installs row material axle to rotate between the both end plate, arrange and install 3 ~ 5 scraper blades on the material axle along the axial direction of arranging the material axle on, arrange the material motor in the outside of one of them end plate and install row material motor, it is connected with row material shaft drive to arrange the material motor.

Furthermore, a vibrating motor is arranged on the outer side wall of the powder discharge cone hopper.

The device has the beneficial effects that: firstly, the device adopts a mode of combining static powder selection and dynamic powder selection under the action of a traditional powder selecting machine, a powder selecting cone and a bottom plate are of a static powder selecting structure, the powder selecting cone and the bottom plate can stop the rising speed of airflow dust, the airflow dust is subjected to primary separation, a powder selecting assembly, a transmission shaft and a rotating motor are of a dynamic powder selecting structure, the flowing speed of the airflow dust is reduced after the powder selecting operation of the bottom plate and the powder selecting cone is performed for one time, the dust in the airflow is scattered around after the centrifugal force action of the rotating powder selecting assembly, coarse materials impact the powder selecting cone and the bottom plate and fall down from sieve holes, fine powder enters a powder discharging elbow through the powder selecting assembly, and the effect and the efficiency of the powder selection can be improved to a great extent through the structure of combining the static powder selection and the dynamic powder selection; secondly, fine powder after powder selection enters the powder collecting device, dust in air flow can quickly fall into the powder discharge cone hopper after being filtered and blocked by the cloth bag and is discharged into the powder discharge groove through the discharging mechanism, the powder collecting device adopts the filtering cloth bag for collection, the filtering cloth bag has the advantages of good filtering effect and high filtering efficiency, the fine powder can be quickly collected, and the powder collecting effect is remarkable. The device has the advantages of easy implementation, stable operation, better powder selecting effect and remarkable fine powder collecting effect, and is easy to popularize and use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of a connection structure among the powder selecting assembly, the transmission shaft 7 and the movable shaft 24;

FIG. 3 is a schematic structural diagram of the discharging mechanism 17;

in the figure: 1-vertical mill shell, 2-transition cone, 3-top cover, 4-powder discharge elbow, 5-powder selection cone, 6-bottom plate, 7-transmission shaft, 8-driving motor, 9-upper supporting ring plate, 10-lower supporting ring plate, 11-upper blade, 12-lower blade, 13-communicating pipe, 14-box, 15-top plate, 16-powder discharge cone hopper, 17-discharging mechanism, 171-discharging cylinder, 172-upper connecting pipe, 173-lower connecting pipe, 174-end plate, 175-discharging shaft, 176-scraping plate, 177-discharging motor, 18-powder discharge chute, 19-baffle, 20-baffle, 21-filtering cloth bag, 22-exhaust pipe, 23-returning cone, 24-movable shaft, 25-lifting cylinder, 26-blanking blade, 27-sieve plate, 28-support frame and 29-vibrating motor.

Detailed Description

The following further describes the present invention with reference to the attached drawings, but the present invention is not limited in any way, and any changes or improvements based on the teaching of the present invention all belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model comprises a vertical mill housing 1, a transition cone 2 and a top cover 3 are sequentially arranged on the top of the vertical mill housing 1, the transition cone 2 is a structure with a large lower port and a small lower port, a powder discharge elbow 4 is movably arranged on the top cover 3, a powder selection cone 5 is arranged on the upper part in the transition cone 2, the powder selection cone 5 is a structure with a large upper port and a small lower port, a bottom plate 6 is fixedly arranged at the bottom of the powder selection cone 5, a plurality of sieve pores are respectively processed on the powder selection cone 5 and the bottom plate 6, a transmission shaft 7 is vertically arranged on the central axis of the powder selection cone 5, the lower end of the transmission shaft 7 is rotatably arranged on the bottom plate 6 after penetrating through the mounting plate 6, the upper end of the transmission shaft 7 is rotatably arranged on the outer wall of the powder discharge elbow 4 after penetrating through the powder discharge elbow 4, a driving motor 8 is arranged on the upper side of the powder discharge elbow 4, the powder selecting assembly is installed on the transmission shaft 7 positioned in the powder selecting cone 5 and comprises an upper supporting ring plate 9 and a lower supporting ring plate 10, the upper supporting ring plate 9 and the lower supporting ring plate 10 are installed on the transmission shaft 7 at intervals through connecting rods, a plurality of upper blades 11 are installed at the outer edge of the upper supporting ring plate 9 in a hinged mode, the end portion of each upper blade 11 is hinged to a lower blade 12, the end portion of each lower blade 12 is hinged to the lower edge of the lower supporting ring plate 10, and the upper blades 11 and the lower blades 12 can perform secondary sorting on fine powder in the powder selecting cone 5 in the rotating process, so that the powder selecting effect is improved, the uniformity of the fine powder discharged from the powder discharging bent pipe 4 is guaranteed, and the powder selecting uniformity is improved.

The powder discharge elbow pipe is characterized in that a sealing plate is installed at the end part of the powder discharge elbow pipe 4, a communicating pipe 13 is installed on the sealing plate, a powder collector is installed at the end part of the communicating pipe 13 and comprises a box body 14, a top plate 15 and a powder discharge conical hopper 16, the top plate 15 is installed at the top of the box body 14, at least 2 powder discharge conical hoppers 16 are installed at the bottom of the box body 14, a discharging mechanism 17 is arranged below the powder discharge conical hopper 16, a powder discharge chute 18 is arranged below the discharging mechanism 17, a baffle plate 19 is vertically installed on the top plate 15 close to one side of the communicating pipe 13, two sides of the baffle plate 19 are fixedly connected with the inner wall of the box body 14, a partition plate 20 is horizontally installed between the baffle plate 19 far away from one side of the communicating pipe 13 and the inner wall of the box body 14, a plurality of through holes are uniformly distributed on the partition plate 20, a filtering cloth bag 21 is detachably installed in each through hole, and the filtering cloth bag 21 is the prior art, the filtering cloth bag 21 can separate the hot air and the fine powder by sinking, the filtering cloth bag 21 is positioned at the lower side of the clapboard 20, and the box body 14 at the upper side of the clapboard 20 is provided with an exhaust pipe 22.

The utility model discloses a working process is: under the action of air flow, the ground steel slag continuously moves upwards along the vertical mill shell 1, the powder selecting cone 5 and the bottom plate 6 can stop the rising speed of air flow dust, the air flow dust is subjected to primary sorting, coarse powder after the primary screening is carried out on the bottom plate 6 and the powder selecting cone 5 falls into a grinding disc to be ground again, fine powder enters the powder selecting cone 5, the driving motor 8 drives the transmission shaft 7 and the powder selecting component to rotate, the dust in the air flow is scattered around and subjected to secondary screening after the centrifugal force action of the rotating powder selecting component, coarse materials after the secondary screening collide the powder selecting cone 5 and the bottom plate 6 and fall from sieve pores, fine powder enters the powder discharging elbow 4, the matching of the powder selecting cone 5 and the powder selecting component can improve the powder selecting effect and efficiency to a great extent, fine powder air flow discharged from the powder discharging elbow 4 enters a powder collector through the communicating pipe 13, after being blocked by the baffle 19, the flow velocity of the fine powder airflow is slowed down, the filtering cloth bag 21 in the box body 14 intercepts fine powder in the fine powder airflow, the intercepted fine powder falls into the powder discharge cone 16 and is discharged into the powder discharge chute 18 through the discharging mechanism 17, the filtered hot air is discharged from the exhaust pipe 22, the arrangement of the powder collector can realize the quick collection of the fine powder, and the powder collecting effect is obvious

Further, be provided with return cone 23 in the vertical mill casing 1 of bottom plate 6 below, the lower extreme processing of transmission shaft 7 has the guide way, movable mounting has loose axle 24 in the guide way, install lift cylinder 25 between the tank bottom of loose axle 27 upper end and guide way, lift cylinder 25 is prior art, install unloading blade 26 on the loose axle 24, the return cone 23 of setting can carry out the guide to the middlings after the screening, directly falls on the mill, and transmission shaft 7 can drive loose axle 24 and unloading blade 26 rotatory at the pivoted in-process, and then can loosen the middlings in the return cone 23, and lift cylinder 25 drives loose axle 24 and reciprocates, can realize better loose effect.

Further, in order to realize a higher powder separation effect, a sieve plate 27 is arranged on the transmission shaft 7 below the bottom plate 6, and the cross section of the sieve plate 27 is in a wave-shaped structure.

In order to strengthen the rigidity of the powder discharging elbow pipe 4 and avoid the deformation of the powder discharging elbow pipe 4, a rice-shaped support frame 28 is arranged inside the powder discharging elbow pipe 4.

The powder discharging mechanism 17 can adopt a spiral powder discharging machine, preferably, the powder discharging mechanism 17 comprises a discharging cylinder 171, an upper connecting pipe 172 and a lower connecting pipe 173, the upper connecting pipe 172 is installed at the top of the discharging cylinder 171, the upper end of the upper connecting pipe 172 is fixedly connected with the bottom of a powder discharging conical hopper 16, the lower connecting pipe 173 is installed at the bottom of the discharging cylinder 171, the lower end of the lower connecting pipe 173 is located above the powder discharging chute 18, end plates 174 are installed at the two ends of the discharging cylinder 171, a discharging shaft 175 is installed between the two end plates 174 in a rotating manner, 3-5 scraping plates 176 are uniformly installed on the discharging shaft 175 along the axial direction of the discharging shaft 175, a discharging motor 177 is installed outside one of the end plates 174, the discharging motor 177 is the prior art, the discharging motor 177 is in transmission connection with the discharging shaft 175, the discharging shaft 177 drives the discharging shaft 175 to rotate, the discharging shaft 175 drives the scraping plates 176 to rotate, on the one hand, the fine powder in the powder discharging conical hopper 16 is discharged by the scraping plates 176, on the other hand, the scraper 176 prevents the hot air from being discharged from the lower connecting pipe 173, thereby facilitating the collection of the fine powder.

Further, install vibrating motor 29 on the lateral wall of powder discharge cone fill 16, vibrating motor 29 is prior art, and the finished product is directly purchased according to the power of using, and at the in-process that the farine was collected, was arranged the material, turns on vibrating motor 29, and vibrating motor 29 makes powder discharge cone fill 16 produce vibrations to the farine that makes and is attached to in powder discharge cone fill 16 falls, and then has avoided the situation that the farine is attached to in a large number and causes to arrange the jam in the powder discharge cone fill 16.

Claims

1. The utility model provides a powder selecting device of slay miropowder powder process system, includes and immediately grinds casing (1), its characterized in that the top of immediately grinding casing (1) sets gradually transition cone (2) and top cap (3), movable mounting has row powder return bend (4) on top cap (3), upper portion in transition cone (2) is provided with selection powder cone (5), the bottom fixed mounting of selection powder cone (5) has bottom plate (6), all processed a plurality of sieve meshes on selection powder cone (5) and bottom plate (6), vertically on the axis of selection powder cone (5) be provided with transmission shaft (7), the lower extreme of transmission shaft (7) runs through mounting plate (6) after the rotation install on bottom plate (6), the upper end of transmission shaft (7) runs through row powder return bend (4) after the rotation install on row powder return bend (4) outer wall, drive motor (8) are installed to the upside of row powder return bend (4), the powder separation device is characterized in that the driving motor (8) is in transmission connection with the upper end of the transmission shaft (7), a powder separation assembly is mounted on the transmission shaft (7) in the powder separation cone (5), the powder separation assembly comprises an upper supporting ring plate (9) and a lower supporting ring plate (10), the upper supporting ring plate (9) and the lower supporting ring plate (10) are mounted on the transmission shaft (7) at intervals through connecting rods, a plurality of upper blades (11) are hinged to the outer edge of the upper supporting ring plate (9), a lower blade (12) is hinged to the end of each upper blade (11), and the end of each lower blade (12) is hinged to the lower edge of the lower supporting ring plate (10);

the powder discharge elbow pipe is characterized in that a sealing plate is installed at the end part of the powder discharge elbow pipe (4), a communicating pipe (13) is installed on the sealing plate, a powder collecting device is installed at the end part of the communicating pipe (13) and comprises a box body (14), a top plate (15) and a powder discharge cone hopper (16), the top plate (15) is installed at the top of the box body (14), the number of the powder discharge cone hopper (16) is at least 2, the bottom of the box body (14) is installed at the powder discharge cone hopper (16), a discharging mechanism (17) is arranged below the powder discharge cone hopper (16), a powder discharge chute (18) is arranged below the discharging mechanism (17), a baffle plate (19) is vertically installed on the top plate (15) close to one side of the communicating pipe (13), two sides of the baffle plate (19) are fixedly connected with the inner wall of the communicating pipe (14), a partition plate (20) is horizontally installed between the baffle plate (19) far away from one side of the baffle plate (13) and the inner wall of the box body (14), a plurality of through holes are uniformly distributed in the partition plate (20), a filtering cloth bag (21) is detachably mounted in each through hole, the filtering cloth bag (21) is located on the lower side of the partition plate (20), and an exhaust pipe (22) is arranged on the box body (14) on the upper side of the partition plate (20).

2. The powder selecting device of the slag micropowder pulverizing system of claim 1, characterized in that: be provided with returning charge cone (23) in the vertical mill casing (1) of bottom plate (6) below, the lower extreme processing of transmission shaft (7) has the guide way, movable mounting has loose axle (24) in the guide way, install lift cylinder (25) between the tank bottom of loose axle (24) upper end and guide way, install unloading blade (26) on loose axle (24).

3. The powder selecting device of the slag micropowder pulverizing system of claim 1, characterized in that: a sieve plate (27) is arranged on the transmission shaft (7) below the bottom plate (6), and the cross section of the sieve plate (27) is of a wave-shaped structure.

4. The powder selecting device of the slag micropowder pulverizing system of claim 1, characterized in that: the interior of the powder discharge elbow (4) is provided with a support frame (28) shaped like a Chinese character mi.

5. The powder selecting device of the slag micropowder pulverizing system of claim 1, characterized in that: discharge mechanism (17) are including arranging a material section of thick bamboo (171), go up takeover (172) and lower connecting pipe (173), go up takeover (172) and install the top at a row material section of thick bamboo (171), and go up the upper end of takeover (172) and the bottom fixed connection who arranges powder awl fill (16), take over (173) down and install the bottom at a row material section of thick bamboo (171), the lower extreme that takes over (173) down is located the top of arranging powder chute (18), end plate (174) are installed at the both ends of a row material section of thick bamboo (171), rotate between two end plate (174) and install row material axle (175), arrange material axle (175) and go up along the axial direction equipartition of arranging material axle (175) and install 3 ~ 5 scraper blades (176), install discharge motor (177) in the outside of one of them end plate (174), discharge motor (177) and row material axle (175) transmission connection.

6. The powder selecting device of the slag micropowder pulverizing system of claim 1, characterized in that: and a vibration motor (29) is arranged on the outer side wall of the powder discharge conical hopper (16).