CN214327822U - Lead-zinc slag pellet raw material preparation system - Google Patents
Lead-zinc slag pellet raw material preparation system Download PDFInfo
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- CN214327822U CN214327822U CN202120458609.9U CN202120458609U CN214327822U CN 214327822 U CN214327822 U CN 214327822U CN 202120458609 U CN202120458609 U CN 202120458609U CN 214327822 U CN214327822 U CN 214327822U
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- zinc slag
- dust collector
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Abstract
The utility model relates to a XXX technical field, specifically speaking relates to a lead and zinc slag pellet raw materials preparation system, including XXX. In the lead-zinc slag pellet raw material preparation system, part of raw materials required by the pelletizing system are stockpiled in a partitioned manner, and each raw material is provided with a relatively independent feeding, grinding and conveying system; the material after levigating adopts pneumatic transmission's mode, and the batching storehouse of entering batching room after the bag dust collector is stored can guarantee the continuation and the stability of feed, and whole system degree of automation is high, takes up an area of less, easily control, and environmental pollution is little.
Description
Technical Field
The utility model relates to the technical field of metallurgical equipment, specifically speaking relates to a lead and zinc slag pellet raw materials preparation system.
Background
A large amount of lead-zinc smelting slag in China is mainly treated in open-air stockpiling or simple landfill modes, so that on one hand, large-area land is occupied, and land resources are in short supply; on the other hand, the lead-zinc slag is subjected to natural weathering and leaching under an exposed environment, and metal elements in the slag are released into the atmosphere, water and soil, so that the lead-zinc slag becomes an important pollution source. Meanwhile, the lead-zinc slag contains a large amount of valuable metals, such as lead, zinc, iron, tin and the like, and if the valuable metals are not utilized, the waste of metal resources is caused.
In recent years, the application of the method for treating the lead-zinc slag by using the rotary hearth furnace system is more extensive, the lead-zinc slag is subjected to ore grinding, material mixing, pelletizing and drying, then enters the rotary hearth furnace for reduction, and high-temperature flue gas is collected to recover lead and zinc, so that a reduction product sponge iron (DRI) is obtained. The raw material preparation system is used as the first step of the whole process, and the continuous and stable feeding is very important.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lead and zinc slag pellet raw materials preparation system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the purpose, the utility model provides a lead-zinc slag pellet raw material preparation system, which comprises a raw material shed, a fine grinding chamber, a cloth bag dust collector and a batching chamber, wherein the raw material shed and the fine grinding chamber are connected through a large-inclination-angle belt conveyor, the cloth bag dust collector is arranged on a top platform of the batching chamber, and the finely ground materials enter the batching chamber after entering the respective cloth bag dust collector through a fan system; the two raw material sheds are respectively provided with a grab bucket bridge crane, and the reduced coal and the limestone are piled in the same area according to the requirements of the balling process on the type and the dosage of the materials.
Preferably, the raw material shed is internally provided with 3 ore receiving tanks which respectively correspond to a lead-zinc slag, reducing coal and limestone feeding system.
Preferably, the fine grinding chamber is provided with 3 sets of fine grinding systems corresponding to the lead-zinc slag, the reducing coal and the limestone, and the output end of each fine grinding system is connected with the batching chamber.
Preferably, the fine grinding system comprises a large-inclination-angle belt conveyor, a fine grinding chamber buffer bin, a bin lower belt feeder and an ore grinding machine, and the three sets of fine grinding systems are relatively independent; the tail part of the large-inclination-angle belt conveyor is positioned at the lower part of the ore receiving groove of the raw material shed and is used for receiving three raw materials.
Preferably, the bag dust collector comprises a lead-zinc slag bag dust collector, a reduced coal explosion-proof bag dust collector and a limestone bag dust collector, wherein the materials after grinding enter the independent bag dust collector through respective exhaust systems, an electric star-shaped valve is installed at a feed opening of the bag dust collector, a screw conveyor is arranged below the electric star-shaped valve, a proportioning bin is arranged below the screw conveyor, and the materials are discharged into the proportioning bin according to the storage condition of the proportioning bin.
Preferably, a gate valve and a belt scale are arranged below the proportioning bin of the proportioning chamber, and the materials are quantitatively fed according to the proportioning requirement of the balling process.
Preferably, the belt feeder under the bin comprises a pull-type belt scale and a star-type feeding valve, the pull-type belt scale is located at the bottom of the fine grinding chamber buffer bin, and the output end of one end of the pull-type belt scale is located at the top end of the ore grinding machine and is opened and closed through the star-type feeding valve.
Compared with the prior art, the beneficial effects of the utility model are that:
in the lead-zinc slag pellet raw material preparation system, part of raw materials required by the pelletizing system are stockpiled in a partitioned manner, and each raw material is provided with a relatively independent feeding, grinding and conveying system; the material after levigating adopts pneumatic transmission's mode, and the batching storehouse of entering batching room after the bag dust collector is stored can guarantee the continuation and the stability of feed, and whole system degree of automation is high, takes up an area of less, easily control, and environmental pollution is little.
Drawings
FIG. 1 is a sectional view of the present invention;
FIG. 2 is a sectional view of the dispensing chamber of the present invention;
fig. 3 is a schematic plan view of the present invention.
The various reference numbers in the figures mean:
1. a grab bridge crane; 2. a receiving slot; 3. a large-inclination belt conveyor; 4. a fine grinding chamber buffer bin; 5. a pull-type belt scale; 6. a star-shaped feeding valve; 7. grinding an ore mill; 8. a lead-zinc slag bag dust collector; 9. a reduced coal explosion-proof cloth bag dust collector; 10. a limestone bag dust collector; 11. an electric star valve; 12. a screw conveyor; 13. a fine grinding chamber; 14. a raw material shed; 15. a dosing chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
The utility model provides a lead-zinc slag pellet ore raw material preparation system, as shown in fig. 1-3, including raw material shed 14, fine grinding room 13, cloth bag dust collector, batching room 15, raw material shed 14 and fine grinding room 13 are connected through large-inclination belt conveyor 3, cloth bag dust collector is installed on the top platform of batching room 15, the levigated material enters batching room 15 after entering respective cloth bag dust collector through the fan system; the material shed 14 is divided into two parts, a grab bucket bridge crane 1 is respectively arranged, and the reduced coal and the limestone are piled in the same area according to the requirements of the balling process on the type and the dosage of the materials.
In this embodiment, 3 ore receiving tanks 2 are arranged in the raw material shed 14, and correspond to the lead-zinc slag, the reducing coal and the limestone feeding system respectively.
Specifically, the fine grinding chamber 13 is provided with 3 sets of fine grinding systems corresponding to the lead-zinc slag, the reducing coal and the limestone, and the output end of the fine grinding system is connected with the batching chamber 15.
Further, the fine grinding system comprises a large-inclination-angle belt conveyor 3, a fine grinding chamber buffer bin 4, a bin lower belt feeder and an ore grinding machine 7, and the three sets of fine grinding systems are relatively independent; the tail of the large-inclination-angle belt conveyor 3 is positioned at the lower part of the ore receiving groove 2 of the raw material shed 14 and is used for receiving three raw materials.
Further, the bag dust collector comprises a lead-zinc slag bag dust collector 8, a reduced coal explosion-proof bag dust collector 9 and a limestone bag dust collector 10, wherein the materials after grinding enter the independent bag dust collectors through respective exhaust systems, an electric star-shaped valve 11 is installed at a feed opening of the bag dust collector, a spiral conveyor 12 is arranged below the electric star-shaped valve 11, a proportioning bin is arranged below the spiral conveyor 12, and discharging is performed into the proportioning bin according to the storage condition of the proportioning bin.
Further, a gate valve and a belt scale are arranged below the proportioning bin of the proportioning chamber 15, and the materials are quantitatively fed according to the proportioning requirement of the balling process.
Further, the belt feeder under the bin comprises a pull type belt scale 5 and a star-shaped feeding valve 6, the pull type belt scale 5 is located at the bottom of the fine grinding chamber buffer bin 4, and the output end of one end of the pull type belt scale 5 is located at the top end of the ore grinding machine 7 and is opened and closed through the star-shaped feeding valve 6.
When the lead-zinc slag pellet ore raw material preparation system is used, the raw material shed 14 is arranged in two spans, lead-zinc slag is arranged in a single storage yard, reducing coal and limestone are stacked in the uniform-span storage yard, and raw materials are transported to the raw material shed 14 by a dump truck and then are fed to the ore receiving groove 2 by the grab bridge crane 1; 3 ore receiving tanks are arranged in the furnace, and are respectively used for receiving the lead-zinc slag, the reducing coal and the limestone; the head of a large-inclination-angle belt conveyor 3 is installed on a fine grinding chamber 13, the tail of the large-inclination-angle belt conveyor is arranged in a raw material shed 14, materials in an ore receiving groove 2 are fed into a fine grinding chamber buffer bin 4 through the large-inclination-angle belt conveyor 3 and enter an ore mill 7 through a star-shaped feeding valve 6, the ore mill 7 is provided with three lead-zinc slag fine grinding mills, reducing coal fine grinding mills and limestone fine grinding mills, and the finely ground lead-zinc slag, reducing coal and limestone are conveyed to a lead-zinc slag bag dust collector 8, a reducing coal explosion-proof bag dust collector 9 and a limestone bag dust collector 10 of a top platform at the top of a batching chamber 15 through a fan system matched with the ore mill 7; the screw conveyor 12 has a plurality of discharging points, and discharging is performed through the screw conveyor 12, so that feeding to different bins of the batching chamber 15 can be realized.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A lead-zinc slag pellet raw material preparation system is characterized in that: the grinding machine comprises a raw material shed (14), a fine grinding chamber (13), a cloth bag dust collector and a batching chamber (15), wherein the raw material shed (14) is connected with the fine grinding chamber (13) through a large-inclination-angle belt conveyor (3), the cloth bag dust collector is installed on a top platform of the batching chamber (15), and finely ground materials enter the batching chamber (15) after entering the respective cloth bag dust collector through a fan system; the raw material shed (14) is divided into two parts, a grab bucket bridge crane (1) is respectively arranged, and the reduced coal and the limestone are piled in the same area according to the requirements of the balling process on the type and the dosage of the materials.
2. The lead-zinc slag pellet ore material preparation system as claimed in claim 1, wherein: and 3 ore receiving grooves (2) are arranged in the raw material shed (14) and respectively correspond to a lead-zinc slag, reducing coal and limestone feeding system.
3. The lead-zinc slag pellet ore material preparation system as claimed in claim 1, wherein: the fine grinding chamber (13) is provided with 3 sets of fine grinding systems corresponding to the lead-zinc slag, the reducing coal and the limestone, and the output end of the fine grinding system is connected with the batching chamber (15).
4. The lead-zinc slag pellet ore material preparation system as claimed in claim 3, wherein: the fine grinding system comprises a large-inclination-angle belt conveyor (3), a fine grinding chamber buffer bin (4), a bin lower belt feeder and an ore grinding machine (7), and the three sets of fine grinding systems are relatively independent; the tail part of the belt conveyor (3) with the large inclination angle is positioned at the lower part of the ore receiving groove (2) of the raw material shed (14) and is used for receiving three raw materials.
5. The lead-zinc slag pellet ore material preparation system as claimed in claim 1, wherein: the bag dust collector comprises a lead-zinc slag bag dust collector (8), a reduced coal explosion-proof bag dust collector (9) and a limestone bag dust collector (10), wherein materials after being levigated enter the independent bag dust collector through respective exhaust systems, a feed opening of the bag dust collector is provided with an electric star-shaped valve (11), a spiral conveyor (12) is arranged below the electric star-shaped valve (11), a proportioning bin is arranged below the spiral conveyor (12), and discharging is performed to the proportioning bin according to the storage condition of the proportioning bin.
6. The lead-zinc slag pellet ore material preparation system as claimed in claim 1, wherein: a gate valve and a belt scale are arranged below the proportioning bin of the proportioning chamber (15), and the materials are quantitatively fed according to the proportioning requirement of the balling process.
7. The lead-zinc slag pellet ore material preparation system as claimed in claim 4, wherein: the belt feeder under the bin comprises a pull-type belt scale (5) and a star-type feeding valve (6), wherein the pull-type belt scale (5) is located at the bottom of the fine grinding chamber buffer bin (4), and the output end of one end of the pull-type belt scale (5) is located at the top end of the ore grinding machine (7) and is opened and closed through the star-type feeding valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120458609.9U CN214327822U (en) | 2021-03-03 | 2021-03-03 | Lead-zinc slag pellet raw material preparation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120458609.9U CN214327822U (en) | 2021-03-03 | 2021-03-03 | Lead-zinc slag pellet raw material preparation system |
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| CN214327822U true CN214327822U (en) | 2021-10-01 |
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| CN202120458609.9U Active CN214327822U (en) | 2021-03-03 | 2021-03-03 | Lead-zinc slag pellet raw material preparation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620461A (en) * | 2022-02-08 | 2022-06-14 | 广西钢铁集团有限公司 | Pellet ore grading transfer method |
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2021
- 2021-03-03 CN CN202120458609.9U patent/CN214327822U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620461A (en) * | 2022-02-08 | 2022-06-14 | 广西钢铁集团有限公司 | Pellet ore grading transfer method |
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