CN211712132U

CN211712132U - Overhead traveling crane feeding system

Info

Publication number: CN211712132U
Application number: CN201922237249.5U
Authority: CN
Inventors: 许亨权; 严昌令; 欧定泉; 康建军
Original assignee: Meishan Aostar Aluminum Co ltd
Current assignee: Meishan Aostar Aluminum Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-10-20
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a crown block feeding system, which comprises a storage bin, a screw conveyer, a bucket elevator, a powder bin, a scraper and a crown block bin; the screw conveyer sets up the below of the discharge gate of storage silo, screw conveyer's discharge end with bucket elevator's feed end links to each other, bucket elevator's discharge end with the feed end of powder storehouse links to each other, the discharge end setting of powder storehouse is in scrape the trigger top, the discharge end setting of scraping the trigger is in the top of overhead traveling crane feed bin. The utility model discloses a charging system is reinforced to the powder storehouse of high-order department through screw conveyer, bucket elevator, has avoided dangers such as trachea gas leakage, the explosion that the reinforced belt of high-pressure gas brought, and automatic monitoring and control feeding volume simultaneously, it is reinforced accurate, avoided artifical judgement reinforced volume that causes not enough or very problem.

Description

Overhead traveling crane feeding system

Technical Field

The utility model relates to an electrolytic aluminum production facility technical field, in particular to overhead traveling crane charging system.

Background

In the electrolytic aluminum industry, the raw material powder is conveyed to a storage bin after coming, the storage bin is generally positioned at a high position of about 30 meters based on the requirement of process design, and the coming material needs to convey the powder to the storage bin at the high position. The semi-closed tank car is used in the industry, the incoming material needs to be supplied with a concentrated powder phase into a storage bin through a pipeline by high-pressure gas, and the pressure of the high-pressure gas needs to be 0.26-0.3 Mpa.

This approach has the following disadvantages: 1. phi 100 pressure-resistant air pipes need to be manually butted during feeding, and the air pipes in operation need to be kept in mind at all times when in air leakage, pipe explosion and the like, if a bin level gauge fails or an air valve is blocked and cannot be closed, the material is easily ejected from the top of the bin, so that economic loss is caused, and the production environment is influenced; when the materials are fed into the powder bin, the feeding amount is judged according to manual experience, and the aluminum electrolysis can be influenced due to insufficient feeding; the excessive feeding can cause the loss of raw materials and environmental pollution of the powder bin due to material overflow; 2. the feeding amount can not be effectively controlled during the blanking of the powder bin, so that the scraper conveyor is blocked and the motor is burnt.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a crown block feeding system, which feeds materials to a powder bin at a high position through a screw conveyor and a bucket elevator, avoids the dangers of air leakage, pipe burst and the like caused by high-pressure gas feeding, automatically monitors and controls the feeding amount at the same time, is accurate in feeding, and avoids the problem of insufficient or excessive feeding amount caused by manual judgment of feeding; and the feeding amount can not be effectively controlled when the powder bin is fed, so that the phenomenon that the scraper conveyor blocks and burns out the fourth motor due to the fact that materials are accumulated due to untimely material conveying of the scraper conveyor is avoided.

The purpose of the utility model is realized through the following technical scheme:

a crown block charging system comprises a storage bin, a screw conveyor, a bucket elevator, a powder bin, a scraper and a crown block bin; the spiral conveyor is arranged below the discharge port of the storage bin, the discharge end of the spiral conveyor is connected with the feed end of the bucket elevator, the discharge end of the bucket elevator is connected with the feed end of the powder bin, the discharge end of the powder bin is arranged above the scraper conveyor, and the discharge end of the scraper conveyor is arranged above the overhead traveling crane bin;

a first motor of the spiral conveyor is electrically connected with a first frequency converter; a material level meter is arranged at the top of the powder bin, and a signal output end of the material level meter is connected with a signal input end of a first motor of the spiral conveyor; the discharge end of the powder bin is provided with an electric valve, and a second motor of the electric valve is electrically connected with a second frequency converter.

Further, the charge level indicator is the rotatory charge level indicator of mechanical type, and is provided with two, two the charge level indicator sets up respectively powder storehouse top different positions.

Further, the lifting machine includes casing, third motor, sets up storage hopper, drive wheel and the follower in the casing, the hopper sets up the bottom of casing, the drive wheel is connected with third motor transmission, the follower pass through the belt with the drive wheel is connected, the equipartition has a plurality of buckets on the belt, casing upper portion is provided with the discharge gate.

Furthermore, a dustproof feeding device is arranged at a feeding hole of the storage bin, and comprises a feeding hopper, a blanking straight pipe, a blanking inclined pipe, a dustproof body and a feeding straight pipe; one end of the blanking branch pipe is connected with the discharge end of the charging hopper, the other end of the blanking branch pipe is connected with one end of the blanking inclined pipe, the other end of the blanking inclined pipe is connected with the feed inlet of the dustproof body, the discharge outlet of the dustproof body is connected with the feeding straight pipe, the feeding straight pipe is fixed on the storage bin, and the feeding straight pipe is communicated with the interior of the storage bin;

the dustproof body is of a cylindrical structure, a cylindrical material cavity is formed in the dustproof body, a rotating body matched with the dustproof body is rotationally connected in the material cavity, a plurality of material receiving grooves are uniformly distributed in the rotating body along the circumferential direction, a first connecting port is formed in the left side of the dustproof body, a second connecting port is formed in the bottom of the dustproof body, and the first connecting port is connected with the blanking inclined tube and corresponds to the material receiving grooves; the second connecting port is connected with the feeding straight pipe and vertically corresponds to the material receiving groove.

Furthermore, the blanking straight pipe and the blanking inclined pipe are of an integrated structure.

Furthermore, the rotating body is rotatably connected with the dustproof body through a connecting shaft.

The utility model has the advantages that:

1) the feeding system of the utility model feeds materials to the powder bin at a high position through the screw conveyor and the bucket elevator, avoids the dangers of air leakage, pipe explosion and the like caused by high-pressure gas feeding, automatically monitors and controls the feeding amount at the same time, feeds materials accurately, and avoids the problem of insufficient or excessive feeding amount caused by manual judgment of feeding; and the feeding amount can not be effectively controlled when the powder bin is fed, so that the phenomenon that the scraper conveyor blocks and burns out the fourth motor due to the fact that materials are accumulated due to untimely material conveying of the scraper conveyor is avoided.

2) The dustproof feeding device that sets up can produce the raise dust and cause environmental pollution when effectively avoiding reinforced, and the harm staff is healthy.

Drawings

Fig. 1 is a schematic view of the overall structure of a crown block feeding system in the embodiment of the present invention;

fig. 2 is a control schematic block diagram of a level gauge and a first frequency converter in an embodiment of the present invention;

fig. 3 is a control schematic block diagram of the second frequency converter in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of the bucket elevator in the embodiment of the present invention;

FIG. 5 is a schematic structural view of a storage bin, a screw conveyor and a bucket elevator in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a dustproof feeding device in an embodiment of the present invention;

in the figure, 1, a storage bin; 2. a screw conveyor; 3. a bucket elevator; 4. a powder bin; 5. a scraper machine; 6. a crown block stock bin; 7. a first frequency converter; 8. a level gauge; 9. an electrically operated valve; 10. a first motor; 11. a second motor; 12. a connecting shaft; 13. a third motor; 14. a fourth motor; 15. a second frequency converter; 16. a storage hopper; 17. a drive wheel; 18. a driven wheel; 19. a belt; 20. excavating a bucket; 21. a dustproof feeding device; 22. a hopper; 23. a blanking straight pipe; 24. a blanking inclined tube; 25. a dust-proof body; 26. feeding a straight pipe; 27. a rotating body; 28. a material receiving groove; 29. a first connection port; 30. a second connection port; 31. a housing.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

as shown in fig. 1-3, a crown block charging system comprises a storage bin 1, a screw conveyor 2, a bucket elevator 3, a powder bin 4, a scraper 5 and a crown block bin 6; the spiral conveyor 2 is arranged below the discharge port of the storage bin 1, the discharge end of the spiral conveyor 2 is connected with the feed end of the bucket elevator 3, the discharge end of the bucket elevator 3 is connected with the feed end of the powder bin 4, the discharge end of the powder bin 4 is arranged above the scraper conveyor 5, and the discharge end of the scraper conveyor 5 is arranged above the crown block bin 6;

a first motor 10 of the spiral conveyor 2 is electrically connected with a first frequency converter 7; a material level meter 8 is arranged at the top of the powder bin 4, and a signal output end of the material level meter 8 is connected with a signal input end of a first motor 10 of the spiral conveyor 2; the discharge end of the powder bin 4 is provided with an electric valve 9, and a second motor 11 of the electric valve 9 is electrically connected with a second frequency converter 15. Wherein, the signal output end of the specific level indicator 8 is connected to the control loop of the first motor 10 of the screw conveyor 2, and the connection mode and the type selection of the level indicator 8 are all technical means known by those skilled in the art, and are not described herein. For the sake of convenience, a third motor 13 drives the bucket elevator, and a fourth motor 14 drives the scraper conveyor 5. The connection between the first frequency converter 7 and the second frequency converter 15 and the first motor 10 and the second motor 11, and the signal transmission are common technical means in the art, and are not described herein.

The working principle is as follows: the storage silo 1 storage is added to the material, start screw conveyer 2 when needing to feed in raw material, the material that drives storage silo 1 by screw conveyer 2 gets into bucket elevator, and the material is carried to high-order powder storehouse 4 through bucket elevator 3. When the material enters the powder bin 4, the material level meter 8 monitors the material, when the material level meter 8 detects that the powder bin 4 is full of material, a full material signal is sent to the first motor 10 control loop of the spiral conveyor 2, and the first motor 10 of the spiral conveyor 2 is controlled to stop feeding after the full material signal is received by the motor control loop. Wherein the first frequency converter 7 is used for controlling the feeding speed of the screw conveyor 2 and avoiding the leakage and blockage of the bucket elevator 3.

When the material in the powder bin 4 is full, the second frequency converter 15 controls the second motor 11 of the electric valve 9 to rotate at a speed slower than the fourth motor 14 for driving the scraper conveyor 5. And then make scraper 5 move earlier the blanking just opened by electric valve 9 after, form the mode of operation scraper blade unloading again earlier, so can effectively keep away unable effective control feed volume size when powder storehouse 4 unloading, avoid scraper 5 fortune material untimely cause the material to pile up and make scraper 5 card group, burn out the phenomenon emergence of fourth motor 14.

The scraper 5 conveys the materials falling from the powder bin 4 to the overhead traveling crane bin 6, and finally the overhead traveling crane bin 6 finishes feeding.

The feeding system of the utility model feeds materials to the powder bin 4 at a high position through the screw conveyer 2 and the bucket elevator 3, avoids the dangers of air pipe leakage, pipe explosion and the like caused by high-pressure gas feeding, automatically monitors and controls the feeding amount at the same time, is accurate in feeding, and avoids the problem of insufficient or excessive feeding amount caused by manual judgment of feeding; and the feeding quantity can be effectively prevented from being effectively controlled when the powder bin 4 is used for feeding, and the phenomena that the scraper 5 blocks and burns out the fourth motor 14 due to the fact that materials are accumulated due to untimely material conveying of the scraper 5 are avoided.

Further, charge level indicator 8 is the rotatory charge level indicator 8 of mechanical type, and is provided with two, two charge level indicator 8 sets up respectively 4 different positions in top of powder storehouse. So set up and to carry out two point monitoring to the reinforced volume, improve the degree of accuracy of monitoring.

Further, as shown in fig. 4, the elevator includes a housing 31, a third motor 13, a storage hopper 16, a driving wheel 17 and a driven wheel 18, the storage hopper 16, the driving wheel 17 and the driven wheel 18 are disposed in the housing 31, the storage hopper is disposed at the bottom of the housing 31, the driving wheel 17 is in transmission connection with the third motor 13, the driven wheel 18 is connected with the driving wheel 17 through a belt 19, a plurality of buckets 20 are uniformly distributed on the belt 19, and a discharge hole is disposed at the upper portion of the housing 31. The materials conveyed by the screw conveyor 2 enter the storage hopper 16 to be accumulated, the third motor 13 drives the driving wheel 17 to rotate, the driving wheel 17 drives the belt 19 and the driven wheel 18 to synchronously run, and further drives the bucket 20 on the belt 19 to run, and when the bucket 20 runs to the bottom hopper, the materials in the storage hopper 16 are conveyed to the highest point and then are sent out from the discharge hole.

Further, as shown in fig. 5 and 6, a dustproof feeding device 21 is arranged at the feeding port of the storage bin 1, and the dustproof feeding device 21 comprises a feeding hopper 22, a blanking straight pipe 23, a blanking inclined pipe 24, a dustproof body 25 and a feeding straight pipe 26; one end of the blanking branch pipe is connected with the discharge end of the charging hopper 22, the other end of the blanking branch pipe is connected with one end of the blanking inclined pipe 24, the other end of the blanking inclined pipe 24 is connected with the feed inlet of the dustproof body 25, the discharge outlet of the dustproof body 25 is connected with the feeding straight pipe 26, the feeding straight pipe 26 is fixed on the storage bin 1, and the feeding straight pipe 26 is communicated with the interior of the storage bin 1;

the dustproof body 25 is of a cylindrical structure, a cylindrical material cavity is formed in the dustproof body, a rotating body 27 matched with the dustproof body is rotatably connected in the material cavity, a plurality of material receiving grooves 28 are uniformly distributed in the rotating body 27 along the circumferential direction, a first connecting port 29 is formed in the left side of the dustproof body 25, a second connecting port 30 is formed in the bottom of the dustproof body, and the first connecting port 29 is connected with the blanking inclined tube 24 and corresponds to the material receiving grooves 28 in the left-right direction; the second connecting port 30 is connected with the feeding straight pipe 26 and vertically corresponds to the vertical material receiving groove 28.

Can avoid the drop point too high and raise dust to appear through reinforced in dustproof feeding device 21 to storage silo 1, its concrete principle is: the materials are gently added into the feeding hopper 22, and then enter the blanking straight pipe 23 through the feeding hopper 22 and enter the dust-proof body 25 through the blanking inclined pipe 24. Because the left material receiving groove 28 on the rotating body 27 corresponds to the inclined blanking inclined tube 24, when the material receiving groove 28 is filled with the material, the center of the rotating body 27 is deviated, so the rotating body 27 automatically rotates under the action of gravity, the material receiving groove 28 filled with the material in the rotating process rotates towards the feeding hole of the storage bin 1, and when the material rotates to vertically correspond to the feeding hole of the storage bin 1, the material in the material receiving groove falls into the storage bin 1. In the process that the material falls into storage silo 1, because rotor 27 shelters from, the raise dust can not fly out, and then forms confined reinforced space between storage silo 1 and the dustproof body 25, and then produces the raise dust when having avoided reinforced.

The dustproof feeding device 21 can effectively avoid raising dust during feeding to cause environmental pollution and harm the health of workers.

Furthermore, the blanking straight pipe 23 and the blanking inclined pipe 24 are of an integrated structure. The blanking straight pipe 23 and the blanking inclined pipe 24 are arranged in this way, so that the structural stability is better, and the service life is long.

Further, the rotating body 27 shown in fig. 6 is rotatably connected to the dust-proof body 25 via a connecting shaft 12. The connecting shaft 12 is coaxially fixed on the wall of the material cavity, and the rotating body 27 is rotatably connected with the connecting shaft 12. So set up, the connected mode is simple, easily realizes.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. Overhead traveling crane charging system, its characterized in that: comprises a storage bin, a screw conveyor, a bucket elevator, a powder bin, a scraper and a crown block bin; the spiral conveyor is arranged below the discharge port of the storage bin, the discharge end of the spiral conveyor is connected with the feed end of the bucket elevator, the discharge end of the bucket elevator is connected with the feed end of the powder bin, the discharge end of the powder bin is arranged above the scraper conveyor, and the discharge end of the scraper conveyor is arranged above the overhead traveling crane bin;

2. The overhead traveling crane charging system according to claim 1, wherein: the charge level indicator is a mechanical rotary charge level indicator and is provided with two charge level indicators which are respectively arranged at different positions at the top of the powder bin.

3. The overhead traveling crane charging system according to claim 1, wherein: the lifting machine comprises a shell, a third motor, a storage hopper, a driving wheel and a driven wheel, wherein the storage hopper, the driving wheel and the driven wheel are arranged in the shell, the hopper is arranged at the bottom of the shell, the driving wheel is in transmission connection with the third motor, the driven wheel is connected with the driving wheel through a belt, a plurality of buckets are uniformly distributed on the belt, and a discharge hole is formed in the upper portion of the shell.

4. The overhead traveling crane charging system according to claim 1, wherein: the feeding hole of the storage bin is provided with a dustproof feeding device, and the dustproof feeding device comprises a feeding hopper, a blanking straight pipe, a blanking inclined pipe, a dustproof body and a feeding straight pipe; one end of the blanking branch pipe is connected with the discharge end of the charging hopper, the other end of the blanking branch pipe is connected with one end of the blanking inclined pipe, the other end of the blanking inclined pipe is connected with the feed inlet of the dustproof body, the discharge outlet of the dustproof body is connected with the feeding straight pipe, the feeding straight pipe is fixed on the storage bin, and the feeding straight pipe is communicated with the interior of the storage bin;

5. The overhead traveling crane charging system according to claim 4, wherein: the blanking straight pipe and the blanking inclined pipe are of an integrated structure.

6. The overhead traveling crane charging system according to claim 5, wherein: the rotating body is connected with the dustproof body in a rotating mode through a connecting shaft.