CN111286574A - Blast furnace ore coke groove auxiliary raw material feeding system and using method thereof - Google Patents
Blast furnace ore coke groove auxiliary raw material feeding system and using method thereof Download PDFInfo
- Publication number
- CN111286574A CN111286574A CN202010208486.3A CN202010208486A CN111286574A CN 111286574 A CN111286574 A CN 111286574A CN 202010208486 A CN202010208486 A CN 202010208486A CN 111286574 A CN111286574 A CN 111286574A
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- groove
- raw material
- blast furnace
- feeding system
- weighing hopper
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
Abstract
The invention relates to a blast furnace ore coke groove auxiliary raw material feeding system and a using method thereof, belonging to the field of ore coke groove feeding systems. The device comprises an auxiliary raw material groove, a plurality of feeders, chutes, vibrating screens and weighing hoppers which are connected in sequence, wherein the auxiliary raw material groove is internally provided with a plurality of bins; the use method of the blast furnace ore coke groove auxiliary raw material feeding system comprises the steps of feeding, screening and weighing. In the invention, the plurality of bins are respectively connected with the vibrating screen through the corresponding feeders, so that the number of the vibrating screens is reduced, the utilization rate of the vibrating screens is increased, and the investment and the maintenance quantity of later equipment are reduced; the baffle is arranged in the auxiliary raw material groove, the auxiliary raw material groove is separated into a plurality of feed bins, different types of materials can be stored, the arrangement of the ore coke groove is more compact, the utilization rate of the ore coke groove is increased, the investment is reduced, and the overall structure design of the ore coke groove is convenient.
Description
Technical Field
The invention belongs to the field of ore coke groove feeding systems, and relates to a blast furnace ore coke groove auxiliary raw material feeding system and a using method thereof.
Background
During the production of blast furnaces, the required raw materials generally comprise coke, sintered ore, pellet ore, lump ore and miscellaneous ores, and some auxiliary raw materials such as limestone, dolomite, fluorite and the like are added to reduce the melting point of ore and coke ash during slagging so as to form flowable slag and remove sulfur so as to improve the quality of pig iron.
The blast furnace ore coke groove is an important process flow link for storing, screening, weighing and batching various raw materials of the blast furnace, each material is stored by a single or a plurality of bins according to the demand and the storage time of the blast furnace, and a set of screening and weighing facilities is respectively arranged at an outlet below each bin.
In the production process of the blast furnace, the requirement proportion of the auxiliary raw materials is very small, and the annual consumption of the auxiliary raw materials accounts for about 6 per mill of the annual consumption of the sintering ore by taking a certain 2000-grade blast furnace as an example, so that the volume of the auxiliary raw material trough can be much smaller than that of other troughs theoretically. In order to keep the structural consistency and the process uniformity of the ore coke groove in the actual engineering, the height and width directions of the auxiliary raw material groove are the same as those of other material grooves, although the length direction of the auxiliary raw material groove can be reduced, the actual volume can be stored for tens of times longer than that of other material bins, the auxiliary raw material groove is not beneficial to the circulation of the auxiliary raw materials, hardening is easily caused, and the engineering quantity is increased.
At the same time, the current blast furnace mainly has two feeding modes aiming at auxiliary raw materials, namely a first mode: a feeder, a vibrating screen and a weighing hopper are arranged below each auxiliary raw material groove, so that each auxiliary raw material is independently screened and weighed, and finally, each weighed and qualified auxiliary raw material is loaded into an adhesive tape machine below the groove and then conveyed to a blast furnace; the second mode is as follows: and a feeder and a vibrating screen are arranged below each auxiliary raw material groove, wherein the two vibrating screens share one weighing hopper, so that each two auxiliary raw materials are separately screened and combined to be weighed, and finally the two auxiliary raw materials which are qualified in weighing and mixed are loaded into the under-groove adhesive tape machine and then conveyed to the blast furnace. In the two modes, the occupation ratio of the auxiliary raw materials in each batch of blast furnace charge is very small, so that the working time of the vibrating screen is very short every time, the operation rate is low, and meanwhile, each auxiliary raw material is provided with one screening and weighing device, so that the investment of the project is increased, and the maintenance work of later equipment is also increased.
Disclosure of Invention
In view of the above, the invention aims to provide a blast furnace ore coke groove secondary raw material feeding system and a use method thereof, which optimize the arrangement of a groove body, reduce the number of vibrating screens, improve the utilization rate of the vibrating screens, and reduce the investment and the maintenance number of later equipment.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a vice raw materials feeding system of blast furnace ore deposit burnt groove which characterized in that: including the vice raw materials groove, batcher, chute, shale shaker and the weighing hopper that connect gradually, vice raw materials inslot is provided with a plurality of feed bin, the batcher is a plurality of, the batcher with the feed bin corresponds the setting, the feed bin through correspond the batcher with the chute intercommunication.
Optionally, vice raw material tank includes the silo body and sets up this internal baffle of silo, be provided with the pan feeding mouth on one side of silo body, the silo body is kept away from be provided with the discharge gate on one side of pan feeding mouth, the extending direction of discharge gate with the extending direction of pan feeding mouth is parallel, the baffle is a plurality of, and a plurality of baffle is followed the extending direction of pan feeding mouth sets gradually, and is a plurality of the baffle will the silo body is separated for a plurality of the feed bin, a plurality of the feed bin divide equally do not with the pan feeding mouth reaches the discharge gate intercommunication.
Optionally, the silo body includes straight section and toper section, the cross-sectional shape of straight section is the rectangle, the cross-section of toper section is triangle-shaped, the pan feeding mouth sets up on the straight section, the discharge gate sets up on the toper section.
Optionally, the feed bin reaches the batcher is 3, the chute is the four-way chute, 3 the feed bin is respectively through 3 batcher and four-way silo intercommunication.
Optionally, the device further comprises a under-groove adhesive tape machine, and the weighing hopper is connected with the under-groove adhesive tape machine.
The use method of the auxiliary raw material feeding system of the blast furnace ore coke groove comprises the following steps:
feeding: starting a feeder, and enabling materials in a corresponding bin of the feeder to enter a vibrating screen through a chute under the action of the feeder;
screening: the vibrating screen screens the materials entering the vibrating screen, and the screened materials enter a weighing hopper;
weighing: the weighing hopper weighs the material entering the weighing hopper until the weight of the material in the weighing hopper reaches a set value of the material, and the feeding machine stops;
and repeating the steps, and starting the plurality of feeders in sequence until the total weight of the materials in the weighing hopper reaches a set value.
Optionally, providing a under-groove adhesive tape machine, wherein a weighing hopper is connected with the under-groove adhesive tape machine; further comprising the steps of: the under-slot taping machine transports the material to the blast furnace.
The invention has the beneficial effects that: the plurality of bins are respectively connected with the vibrating screen through the corresponding feeders, so that the number of the vibrating screens is reduced, the utilization rate of the vibrating screens is increased, and the investment and the maintenance number of later equipment are reduced; the baffle is arranged in the auxiliary raw material groove, the auxiliary raw material groove is separated into a plurality of feed bins, different types of materials can be stored, the arrangement of the ore coke groove is more compact, the utilization rate of the ore coke groove is increased, the investment is reduced, and the overall structure design of the ore coke groove is convenient.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a secondary raw material feeding system of a blast furnace ore coke groove;
FIG. 2 is a schematic view of the structure of a sub-raw material tank;
FIG. 3 is a schematic longitudinal sectional view of a sub-raw material tank;
FIG. 4 is a schematic cross-sectional view of a secondary feed tank;
fig. 5 is a schematic structural view of the chute.
Reference numerals: the device comprises an auxiliary raw material tank 1, a feeder 2, a chute 3, a vibrating screen 4, a weighing hopper 5, a storage bin 6, a chute body 7, a partition plate 8, a feeding port 9, a discharging port 10, a straight section 11, a conical section 12, an under-tank adhesive tape machine 13, a chute inlet 14, a chute outlet 15 and a lining plate 16.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 5, a feeding system for auxiliary raw material of a coke tank of a blast furnace is disclosed, which is characterized in that: comprises an auxiliary raw material groove 1, a feeder 2, a chute 3, a vibrating screen 4 and a weighing hopper 5 which are connected in sequence.
In this embodiment, vice raw material tank 1 includes silo body 7 and sets up baffle 8 in silo body 7, is provided with pan feeding mouth 9 on one side of silo body 7, and pan feeding mouth 9 is two, two pan feeding mouth 9 parallel arrangement. Be provided with discharge gate 10 on the one side that pan feeding mouth 9 was kept away from to silo body 7, the extending direction of discharge gate 10 is parallel with the extending direction of pan feeding mouth 9, and the baffle is 2, and 2 baffle 8 are parallel arrangement in proper order along the extending direction of pan feeding mouth 9, and 2 baffle 8 separate silo body 7 for 3 feed bins 6. Each bin 6 is communicated with a discharge hole 10. One sub-raw material tank 1 can store and discharge 3 different materials at the same time.
In this embodiment, the trough body 7 includes a straight section 11 and a tapered section 12, and the straight section 11 and the tapered section 12 are communicated with each other. The cross-sectional shape of straight section 11 is the rectangle, and the cross-section of toper section 12 is triangle-shaped, and 9 pan feeding mouths set up on the straight section 11 one side of keeping away from toper section 11, and the discharge gate setting is on the one side of keeping away from straight section 11 on the toper section.
In this embodiment, a under-groove adhesive tape machine 13 is further provided, and the weighing hopper 5 is connected with the under-groove adhesive tape machine 13.
In practical use, the method comprises the following steps,
feeding: the feeder 2 is started, and the material in the corresponding bin 6 of the feeder 2 enters the vibrating screen 4 through the chute 3 under the action of the feeder 2;
screening: the vibrating screen 4 screens the material entering the vibrating screen 4, and the screened material enters the weighing hopper 5;
weighing: the weighing hopper 5 weighs the material entering the weighing hopper 5 until the weight of the material in the weighing hopper 5 reaches a set value of the material, and the feeding machine 2 stops;
and repeating the steps, starting the plurality of feeders 2 in sequence until the total weight of the materials in the weighing hopper 5 reaches a set value, and stopping the vibrating screen 4 after the weighing of the weighing hopper 5 is stable.
The under-groove adhesive tape machine 13 is arranged below the weighing hopper 5, the weighing hopper 5 is opened after the total weight of the materials in the weighing hopper 5 reaches a set value, the materials fall on the under-groove adhesive tape machine 13 under the action of gravity, and the under-groove adhesive tape machine 13 finally conveys the materials to the blast furnace.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a vice raw materials feeding system of blast furnace ore deposit burnt groove which characterized in that: including the vice raw materials groove, batcher, chute, shale shaker and the weighing hopper that connect gradually, vice raw materials inslot is provided with a plurality of feed bin, the batcher is a plurality of, the batcher with the feed bin corresponds the setting, the feed bin through correspond the batcher with the chute intercommunication.
2. The secondary raw material feeding system of the blast furnace ore coke groove of claim 1, characterized in that: vice raw material tank includes the silo body and sets up this internal baffle of silo, be provided with the pan feeding mouth on one side of silo body, the silo body is kept away from be provided with the discharge gate on one side of pan feeding mouth, the extending direction of discharge gate with the extending direction of pan feeding mouth is parallel, the baffle is a plurality of, and a plurality of baffle is followed the extending direction of pan feeding mouth sets gradually, and is a plurality of the baffle will the silo body is separated for a plurality of the feed bin, a plurality of the feed bin divide equally do not with the pan feeding mouth reaches the discharge gate intercommunication.
3. The secondary raw material feeding system of the blast furnace ore coke groove of claim 2, characterized in that: the material groove body comprises a straight section and a conical section, the cross section of the straight section is rectangular, the cross section of the conical section is triangular, the feeding port is formed in the straight section, and the discharging port is formed in the conical section.
4. The secondary raw material feeding system of the blast furnace ore coke groove of claim 1, characterized in that: the feed bin reaches the batcher is 3, the chute is the four-way chute, and 3 the feed bin is respectively through 3 batcher and four-way silo intercommunication.
5. The secondary raw material feeding system of the blast furnace ore coke groove of claim 1, characterized in that: the weighing hopper is connected with the under-groove adhesive tape machine.
6. A method for using a secondary raw material feeding system of a blast furnace coke groove, which is characterized by using the secondary raw material feeding system of the blast furnace coke groove as defined in any one of claims 1 to 5, and comprising the following steps:
feeding: starting a feeder, and enabling materials in a corresponding bin of the feeder to enter a vibrating screen through a chute under the action of the feeder;
screening: the vibrating screen screens the materials entering the vibrating screen, and the screened materials enter a weighing hopper;
weighing: the weighing hopper weighs the material entering the weighing hopper until the weight of the material in the weighing hopper reaches a set value of the material, and the feeding machine stops;
and repeating the steps, and starting the plurality of feeders in sequence until the total weight of the materials in the weighing hopper reaches a set value.
7. The use method of the blast furnace ore coke groove secondary raw material feeding system according to claim 6, characterized in that an under-groove belt adhesive machine is provided, and a weighing hopper is connected with the under-groove belt adhesive machine; further comprising the steps of: the under-slot taping machine transports the material to the blast furnace.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010208486.3A CN111286574A (en) | 2020-03-23 | 2020-03-23 | Blast furnace ore coke groove auxiliary raw material feeding system and using method thereof |
| PCT/CN2020/122483 WO2021189833A1 (en) | 2020-03-23 | 2020-10-21 | Auxiliary raw material feeding system for blast furnace ore coke tank and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010208486.3A CN111286574A (en) | 2020-03-23 | 2020-03-23 | Blast furnace ore coke groove auxiliary raw material feeding system and using method thereof |
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| Publication Number | Publication Date |
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| CN111286574A true CN111286574A (en) | 2020-06-16 |
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| CN202010208486.3A Pending CN111286574A (en) | 2020-03-23 | 2020-03-23 | Blast furnace ore coke groove auxiliary raw material feeding system and using method thereof |
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| CN (1) | CN111286574A (en) |
| WO (1) | WO2021189833A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189833A1 (en) * | 2020-03-23 | 2021-09-30 | 中冶赛迪工程技术股份有限公司 | Auxiliary raw material feeding system for blast furnace ore coke tank and use method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341055B (en) * | 2022-08-19 | 2023-07-18 | 马鞍山钢铁股份有限公司 | Automatic under-tank weighing and discharging method for preventing blast furnace from being deficient |
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| JP2004346414A (en) * | 2003-05-26 | 2004-12-09 | Sumitomo Metal Ind Ltd | Charging device for blast furnace |
| CN103344118A (en) * | 2013-07-16 | 2013-10-09 | 上海宝锋工程技术有限公司 | Non-blast furnace iron making device feeding system and method |
| CN104278117A (en) * | 2014-09-24 | 2015-01-14 | 鞍钢集团工程技术有限公司 | Linear charging process for ore coke groove of blast furnace |
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Family Cites Families (4)
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| CN111286574A (en) * | 2020-03-23 | 2020-06-16 | 中冶赛迪工程技术股份有限公司 | Blast furnace ore coke groove auxiliary raw material feeding system and using method thereof |
-
2020
- 2020-03-23 CN CN202010208486.3A patent/CN111286574A/en active Pending
- 2020-10-21 WO PCT/CN2020/122483 patent/WO2021189833A1/en active Application Filing
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| JP2004346414A (en) * | 2003-05-26 | 2004-12-09 | Sumitomo Metal Ind Ltd | Charging device for blast furnace |
| CN103344118A (en) * | 2013-07-16 | 2013-10-09 | 上海宝锋工程技术有限公司 | Non-blast furnace iron making device feeding system and method |
| CN104278117A (en) * | 2014-09-24 | 2015-01-14 | 鞍钢集团工程技术有限公司 | Linear charging process for ore coke groove of blast furnace |
| CN104975121A (en) * | 2015-08-12 | 2015-10-14 | 中冶赛迪工程技术股份有限公司 | Multi-outlet coke and ore tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021189833A1 (en) * | 2020-03-23 | 2021-09-30 | 中冶赛迪工程技术股份有限公司 | Auxiliary raw material feeding system for blast furnace ore coke tank and use method thereof |
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| WO2021189833A1 (en) | 2021-09-30 |
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