CN217774733U - Intelligent screening plant of ironmaking raw materials - Google Patents

Abstract

The utility model particularly relates to an intelligent screening plant of ironmaking raw materials, including sampling device, hopper, automatic screening plant, hierarchical metering device, sampling device sets up the top at the hopper, the hopper sets up the top at automatic screening plant, hierarchical metering device is connected with automatic screening plant. The method can change the management mode of raw materials in the traditional production system, changes manual timing sampling screening into automatic full-time screening by a robot, not only perfects the quality control data of the raw materials, but also powerfully promotes the stability of the production process and the connection of the working procedures; after the device is put into use in a production system, the raw material quality information can be uninterruptedly sampled, screened, calculated and fed back all day long; the intelligent screening device has more detection frequency and more objective data, and the most important is that the intelligent screening device accords with the general development direction of intelligent manufacturing, so that more powerful data support is provided for production decision.

Description

Intelligent screening plant of ironmaking raw materials

Technical Field

The utility model relates to an iron-making principle management technical field specifically is an intelligent screening plant of ironmaking raw materials.

Background

Under the environment of high-speed development of the steel industry in China, industrial 4.0 intelligent manufacturing based on an information physical fusion system becomes a main attack direction of technical progress of the steel industry;

the iron-making technology of China has gone forward in the world, and the iron-making world has a common expression of 'seven-minute raw materials and three-minute operation', namely the importance of the raw materials. High-quality iron ore is the basis of high-efficiency production of a blast furnace, and high-quality raw material management is an important measure for stabilizing the production of the blast furnace and reducing the cost of molten iron.

The management of the size fraction composition of the raw materials for iron making is an important component of the raw material management; on one hand, the reasonable granularity of the raw materials is the premise of ensuring the reasonable distribution of airflow in the blast furnace charge column; on the other hand, large-particle materials capable of meeting the production requirements of the blast furnace are prevented from entering the circulation of the raw material preparation system again due to poor management of the screening system, and unnecessary waste among the working procedures is avoided. The particle size composition management of materials such as lump ore, pellet, return ore, return coke and the like mainly depends on manual detection at present, the data volume is extremely small, and a closed loop is difficult to form in the process of analyzing production fluctuation. Therefore, aiming at the size composition management of the iron-making raw materials, an intelligent screening device integrating automatic sampling, automatic screening, automatic weighing, automatic calculation and intelligent feedback is urgently needed to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intelligent screening plant of ironmaking raw materials to solve the not enough of iron and steel industry ironmaking raw materials size fraction constitution management work.

The utility model provides an intelligent screening plant of ironmaking raw materials includes sampling device, hopper, automatic screening plant, hierarchical metering device, sampling device sets up the top at the hopper, the hopper sets up the top at automatic screening plant, hierarchical metering device is connected with automatic screening plant.

Preferably, the sampling device comprises a sampler, a sampler moving slide bar and a driving cylinder, wherein the driving cylinder is connected with the sampler, and the sampler slides on the sampler moving slide bar.

Preferably, automatic screening plant includes the storehouse body, hierarchical sieve, vibrating motor, hierarchical bin outlet, vibrating motor fixes in storehouse body bottom, hierarchical sieve has polylith, layering to fix in storehouse internal portion, hierarchical bin body in every hierarchical sieve below all connects hierarchical bin outlet.

Preferably, the grading metering device comprises a bin, a weighing device and a bin gate driving cylinder, the bin is arranged on the weighing device, and the bin gate driving cylinder is connected with a bin gate at the bottom of the bin through a hinge.

Preferably, the weighing device comprises a metering base and a weighing sensor fixed on the metering base.

Preferably, a computer is also included, the load cell being in communication with the computer.

Preferably, still include the buffer feed bin, the buffer feed bin sets up in hopper top, sampling device below.

Preferably, the sampling device comprises a material receiving trolley and a track, and the material receiving trolley travels on the track.

Preferably, the device further comprises a material abandoning belt conveyor, and the material abandoning belt conveyor is arranged below the grading metering device.

Compared with the prior art, the beneficial effects of the utility model are that:

the method can change the management mode of raw materials in the traditional production system, changes manual timing sampling screening into automatic full-time screening by a robot, not only perfects the quality control data of the raw materials, but also powerfully promotes the stability of the production process and the connection of the working procedures; after the device is put into use in a production system, the raw material quality information can be uninterruptedly sampled, screened, calculated and fed back all day long; the intelligent screening device has more detection frequency and more objective data, and the most important thing is that the intelligent screening device accords with the general development direction of intelligent manufacturing, thereby providing more powerful data support for production decision.

Drawings

Fig. 1 is a schematic view of the overall structure of an intelligent screening device for iron-making raw materials according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the hierarchical metering device of the present invention;

fig. 3 is a schematic overall structure diagram of an intelligent screening device for ironmaking raw materials according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1-2, the intelligent screening device for ironmaking raw materials provided in this embodiment includes a sampling device 1, a hopper 2, an automatic screening device 3, and a grading and metering device 4, where the sampling device 1 is disposed above the hopper 2, the hopper 2 is disposed above the automatic screening device 3, and the grading and metering device 4 is connected to the automatic screening device 3. Iron-smelting raw materials propelling feed hopper 2 that sampling device 1 will transport from belt feeder 5 gets into automatic screening plant 3 through hopper 2, and iron-smelting raw materials is hierarchical screened to automatic screening plant 3, and the iron-smelting raw materials of different size grades are measured through different hierarchical metering device 4.

As a preferred embodiment of this embodiment, the sampler 1 comprises a sampler 11, a sampler moving slide bar 12, and a driving cylinder (not shown in the figure) connected to the sampler 11, wherein the sampler 11 slides on the sampler moving slide bar 12. The driving cylinder drives the sampler 11 to slide on the sampler moving slide rod 12, and the scraper plate at the lower part of the sampler 11 intelligently turns towards one side of the hopper 2 to push the iron-making raw materials into the hopper 2. The clearance between the lower edge of the scraper of the sampler 11 and the belt conveyor 5 is adjustable, so that the full-section material taking is realized. When the sampler 11 is in a static state, the normal operation of the belt conveyor 5 is not influenced.

As a preferred embodiment of this embodiment, the intelligent screening device for iron-making raw materials further includes a buffer bin 6, and the buffer bin 6 is disposed above the hopper 2 and below the sampling device 1. The buffer bin 6 receives the ironmaking raw materials obtained by the sampling device 1, and has the functions of preventing material scattering and suppressing dust. The hopper 2 of the present embodiment includes a collecting hopper 21 and a receiving hopper 22. The collecting hopper 21 is connected with the buffer bin 6, the receiving hopper 22 is connected with the automatic screening device 3, and the collecting hopper 21 and the receiving hopper 22 are sealed by a flexible sealing cloth bag 23.

As a preferred embodiment of this embodiment, the automatic sieving device 3 includes a bin 31, a grading sieve plate 32, a vibrating motor 33, and a grading discharge port 34, the vibrating motor 33 is fixed at the bottom of the bin 31, the grading sieve plate 32 has a plurality of pieces fixed in the bin 31 in layers, and the sieve surface of the grading sieve plate 32 has a small-angle inclination angle, so as to facilitate discharging of iron-making raw materials. The screen surface of the grading screen plate 32 is also provided with an automatic blockage clearing device, so that the blocking of the screen holes by iron-making raw materials is avoided. Fig. 1 shows five classifying screen plates 32, and the bin body 31 below each classifying screen plate 32 is connected with a classifying discharge outlet 34. The sizes of the mesh openings of the grading sieve plate 32 are different, the grading sieve plate 32 with the large mesh opening should be arranged above the grading sieve plate 32, and then the mesh openings are arranged in sequence, so that the mesh openings of the iron-making raw materials screened by each layer are uniform. The vibration motor 33 is mainly used for providing screening power and promoting the quick screening of ironmaking raw materials. Since each layer is connected with the grading discharge port 34, the screened ironmaking raw materials are discharged out of the bin body 31 through the grading discharge port 34 of each layer. The grading discharge openings 34 are uniformly distributed around according to the number of the grading discharge openings, so that the running stability of the automatic screening device 3 is improved.

As shown in fig. 2, as a preferred embodiment of the present embodiment, the graded metering device 4 includes a bin 41, a weighing device, and a bin gate driving cylinder 42, wherein the bin 41 is disposed on the weighing device, and the bin gate driving cylinder 42 is connected to a bin gate 44 of a bin bottom 41 through a hinge 43. The weighing apparatus of the present embodiment includes a metering base 45, and a load cell 46 fixed to the metering base 45. The number of the metering bases 45 is two, the stock bin 41 is provided with two supporting seats 47 in a matching way, and the supporting seats 47 are lapped on a weighing sensor 46 of the metering bases 45 so as to weigh the ironmaking raw materials. After weighing is completed, the bin gate driving air cylinder 42 drives the bin gate 44 to open, and the ironmaking raw materials accumulated in the bin 41 are naturally discharged under the action of gravity. The diameter of the bin gate 44 is larger than that of the bottom opening of the bin 41, so that the leakage-proof function of the natural stack angle can be realized.

As a preferred embodiment of this embodiment, the intelligent screening device for ironmaking raw materials further comprises a computer 7, and the weighing sensor 46 is in communication with the computer 7. The weighing sensor 46 can upload the weighing data to the computer 7, the computer 7 carries out percentage checking on the weighing data, a duration trend record is formed in the system, and if the size fraction composition exceeds a preset value, the system automatically sends out early warning information to related management personnel. The grading metering device 4 completes the automatic zero clearing operation of the tare weight before each sampling and screening operation so as to ensure the metering accuracy, and meanwhile, the device is provided with a compressed air blowing cleaning device.

As a preferred embodiment of this embodiment, the intelligent screening device for ironmaking raw materials further comprises a waste belt conveyor 8, and the waste belt conveyor 8 is disposed below the bin 41 of the grading and metering device 4. The waste belt conveyor 8 directly conveys the screened ironmaking principle to a main production belt. In order to prevent the materials from scattering outside the waste belt conveyor 8 when the classifying and metering device 4 discards the materials, a large waste hopper 9 may be provided at the lower part of the classifying and metering device 4, and the discarded materials may fall into the waste belt conveyor 8 via the waste hopper 9.

The working method comprises the following steps: in the normal production process, the driving cylinder pushes the sampler 11 to move rapidly, a section in the feeding process is cut, and the taken materials are gathered in the buffer bin 6 and enter the automatic screening device 3 through the hopper 2; after sampling is finished, starting the automatic screening device 3, and after a screening process of about 10 minutes (which can be set), judging that the weighing data does not rise any more within one minute by the system and considering that screening is finished; after the system is static, the grading metering device 4 transmits the metering information to the computer 7 for accounting; the system automatically compares the composition data of the measured size fraction and feeds back information according to a set standard; after the feedback operation is finished, the bin gate driving air cylinder 42 drives the bin gate 44 to be opened, and screened materials are discharged; and the undersize products of each level fall into a waste belt conveyor 8 through a waste hopper 9 and return to the production system.

Example two

Referring to fig. 3, the present embodiment is different from the first embodiment in that: the sampling device 1 comprises a material receiving trolley 14 and a track 15, wherein the material receiving trolley 14 runs on the track 15 and conveys sampled materials to the buffer hopper 6.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides an intelligent screening plant of ironmaking raw materials which characterized in that: the automatic grading and metering device comprises a sampling device, a hopper, an automatic screening device and a grading and metering device, wherein the sampling device is arranged above the hopper, the hopper is arranged above the automatic screening device, and the grading and metering device is connected with the automatic screening device.

2. The intelligent screening device for ironmaking raw materials according to claim 1, characterized in that: the sampling device comprises a sampler, a sampler moving slide bar and a driving cylinder, wherein the driving cylinder is connected with the sampler, and the sampler slides on the sampler moving slide bar.

3. The intelligent iron-making raw material screening device as claimed in claim 1, characterized in that: automatic screening plant includes the storehouse body, hierarchical sieve, vibrating motor, hierarchical bin outlet, vibrating motor fixes in storehouse body bottom, hierarchical sieve has polylith, layering to fix in storehouse internal portion, hierarchical bin body below every hierarchical sieve all connects hierarchical bin outlet.

4. The intelligent screening device for ironmaking raw materials according to claim 1, characterized in that: the graded metering device comprises a storage bin, a weighing device and a bin gate driving cylinder, the storage bin is arranged on the weighing device, and the bin gate driving cylinder is connected with a bin gate at the bottom of the storage bin through a hinge.

5. The intelligent screening device for ironmaking raw materials according to claim 4, characterized in that: the weighing device comprises a metering base and a weighing sensor fixed on the metering base.

6. The intelligent screening device for ironmaking raw materials according to claim 5, characterized in that: also included is a computer, the load cell in communication with the computer.

7. The intelligent screening device for ironmaking raw materials according to claim 1, characterized in that: still include the buffer bin, the buffer bin sets up in hopper top, sampling device below.

8. The intelligent iron-making raw material screening device as claimed in claim 1, characterized in that: the sampling device comprises a material receiving trolley and a track, wherein the material receiving trolley travels on the track.

9. The intelligent screening device for ironmaking raw materials according to claim 1, characterized in that: still include abandonment belt feeder, abandonment belt feeder sets up in hierarchical metering device's below.

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