CN202898446U - Top charging device of shaft furnace - Google Patents
Top charging device of shaft furnace Download PDFInfo
- Publication number
- CN202898446U CN202898446U CN 201220622852 CN201220622852U CN202898446U CN 202898446 U CN202898446 U CN 202898446U CN 201220622852 CN201220622852 CN 201220622852 CN 201220622852 U CN201220622852 U CN 201220622852U CN 202898446 U CN202898446 U CN 202898446U
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- shaft furnace
- charging device
- charging
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- furnace top
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Abstract
The utility model discloses a top charging device of a shaft furnace. The top charging device of the shaft furnace comprises a charging bucket, an upper seal valve, a material flow regulating valve, a lower seal valve, a storage bin and a distributing device, wherein the upper seal valve is arranged on the inlet of the charging bucket; the material flow regulating valve is arranged on the outlet of the charging bucket; the lower seal valve is connected with the outlet of the material flow regulating valve; the storage bin is connected with a discharge hole of the lower seal valve; the distributing device is connected with the outlet of the storage bin; and the charging bucket is provided with a pressure equalization and exhaust connector. According to the top charging device of the shaft furnace, through connecting the pressure equalization and exhaust connector with pressure equalization and exhaust equipment, the air pressure in the charging bucket can be regulated to a required value, and therefore, a charging operation performed in the storage bin and an area above the storage bin under a working condition with pressure higher than constant pressure is realized, so that the shaft furnace is smoothly charged under pressure, and certainly, the charging operation also can be performed by the top charging device of the shaft furnace under the constant pressure. The top charging device of the shaft furnace is simple and compact in structure, low in equipment number and lower in construction cost. Moreover, a modular design is adopted, and thus, all single equipment can be independently detected, and therefore, the maintenance time can be greatly saved, and the maintenance cost is reduced.
Description
Technical field
The utility model relates to the ironmaking equipment technical field, particularly a kind of top charging device of shaft furnace.
Background technology
Direct-reduced iron is the plurality of advantages such as stable components, detrimental impurity are low, epigranular because it has, and is more and more important in the status in ferrous metallurgy field.Recent years, the rate of increase of global direct-reduced iron output reaches 9%, and as seen its development potentiality is quite huge.The direct-reduction process for making iron has a variety of, and wherein gas-based shaft kiln is mainstream technology, and the direct-reduced iron output of production has accounted for about 75% of ultimate production.
Top charging device is the key equipment of direct-reduction shaft furnace, and can the performance quality of its work directly have influence on shaft furnace and normally produce.Shaft furnace is to feed continuously, and is relatively easy for the charging of atmospheric operation shaft furnace, but then relatively more difficult for the charging of band press operation shaft furnace.
The utility model content
In view of this, the purpose of this utility model provides a kind of shaft furnace top charging device, all can feed smoothly under normal pressure and two kinds of operating modes with pressure to realize shaft furnace.
The utility model shaft furnace top charging device, comprise the charging batch can, be arranged on the upper sealing valve in the import of charging batch can, the distributor that is arranged on the material flow gate in the batch can outlet of feeding, the lower sealing valve that is connected with the material flow gate outlet, the material stock storehouse that is connected with the lower sealing valve discharge port and is connected with the outlet of material stock storehouse, be provided with equal row pressure interface on the described charging batch can.
Further, described distributor comprises terminal pad and at least two tremie pipes that circumferentially are evenly arranged along terminal pad;
Further, be provided with conical drop guide on the described terminal pad;
Further, be provided with on the described tremie pipe disclose the material mouthful;
Further, be connected with the top dw in the import of described upper sealing valve;
Further, the outlet of described material flow gate is connected import and is connected by corrugated tube with lower sealing valve;
Further, be provided with the batch can access door on the described charging batch can;
Further, be provided with the distributor access door on the described material stock storehouse;
Further, on the described charging batch can outer wall along being furnished with weighing device on its week.
The beneficial effects of the utility model: the utility model shaft furnace top charging device has following beneficial effect:
1, this shaft furnace top charging device, be provided with equal row pressure interface on its charging batch can, by equal row pressure interface and equal row pressure equipment connection, can be with the air pressure adjustment desired value in the charging batch can, being implemented in material stock storehouse and above zone is higher than under the normal pressure operating mode (being operating mode with pressure) and carries out loading operation, make the smooth charging of shaft furnace under operating mode with pressure, this shaft furnace top charging device also can carry out loading operation under the normal pressure operating mode certainly.
2, this shaft furnace top charging device is simple and compact for structure, equipment amount is few, and construction cost is lower.
3, this shaft furnace top charging device adopts modular design, and each single devices can be overhauled separately, the saving repair time that can be very large, reduces maintenance cost.
Description of drawings
Fig. 1 is the structural representation of this shaft furnace top charging device.
Description of reference numerals: 1-charging batch can, 2-upper sealing valve, 3-material flow gate, 4-lower sealing valve, 5-material stock storehouse, the equal row pressure interface of 6-, 7-shaft furnace body of heater, 8-terminal pad, 9-tremie pipe, the conical drop guide of 10-, 11-disclose material mouth, 12-top dw, 13-corrugated tube, 14-batch can access door, 15-distributor access door, 16-weighing device.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, present embodiment shaft furnace top charging device, comprise charging batch can 1, be arranged on the upper sealing valve 2 in 1 import of charging batch can, the distributor that is arranged on the material flow gate 3 in batch can 1 outlet of feeding, the lower sealing valve 4 that is connected with material flow gate 3 outlets, the material stock storehouse 5 that is connected with lower sealing valve 4 discharge ports and is connected with 5 outlets of material stock storehouse, be provided with equal row pressure interface 6 on the described charging batch can 1.
Present embodiment shaft furnace top charging device, in material stock storehouse 6 and the above areal pressure operating mode that is higher than normal pressure be under the operating mode with pressure, its charging is by following process implementation:
At first, lower sealing valve 4 and material flow gate 3 are in closing condition, and charging batch can 1 material is empty and when being in atmospheric pressure state, the pressure in the distributor is then consistent with shaft furnace body of heater 7 furnace pressures, at this moment, the valve plate of upper sealing valve 2 is opened, charging equipment is started working, and material constantly is fed in the charging batch can 1, reflect that by weighing device the material of charging in the batch can 1 arrives specified wt after, charging equipment quits work, and material stops to flow into charging batch can 1.
Then close upper sealing valve 2 valve plates, be filled with the body of all calming the anger by equal row pressure interface 6, until the pressure in the charging batch can 1 is consistent with the pressure in the distributor.After reaching this standard, open the valve plate of lower sealing valve 4, open the valve plate of material flow gate 3 after some seconds, and then material constantly is discharged into the material stock storehouse 5 from charging batch can 1, material falls in the shaft furnace body of heater 7 uniformly by distributor again, when charging batch can 1 discharging after expect sky, close successively the valve plate of material flow gate 3 and the valve plate of lower sealing valve 4, then enter pressure leak process.Open equal row pressure interface 6 and carry out pressure release, until the pressure in the charging batch can 1 reaches till the normal pressure.Can carry out secondary charging process subsequently.
Process constantly circulates as mentioned above, can finish the continual charging process of shaft furnace furnace roof.
The shaft furnace top charging device of present embodiment, in the material stock storehouse and above areal pressure be the normal pressure operating mode near the operating mode of normal pressure, its charging is similar with above-mentioned charging process with press operation, but does not need to carry out the operating process of equal row pressure.
Present embodiment shaft furnace top charging device all can be feeded under operating mode with pressure and normal pressure operating mode smoothly, and working reliability is good; And this shaft furnace top charging device is simple and compact for structure, equipment amount is few, and construction cost is lower; Each integral part of this shaft furnace top charging device adopts modular design simultaneously, and each single devices can be overhauled separately, and the saving repair time that can be very large, maintenance cost is low.
As the improvement to present embodiment, described distributor comprises terminal pad 8 and to 4 tremie pipes 9 that circumferentially are evenly arranged along terminal pad 8; Certainly in different embodiments, the quantity of tremie pipe 9 also can be other values more than two such as 2,3, and tremie pipe 9 quantity are more, can guarantee material being more evenly distributed at shaft furnace body of heater 7.
As the improvement to present embodiment, be provided with conical drop guide 10 on the described terminal pad 8, conical drop guide 10 can the material guiding tremie pipe 9 with charging batch can 1 middle part in, the fast blanking of the batch can 1 that is conducive to feed.
As the improvement to present embodiment, be provided with on the described tremie pipe 9 and disclose material mouthfuls 11, by described blanking situation of disclosing material mouthful 11 observable tremie pipes 9, and can disclose material with dredging tremie pipe 9 by disclosing material mouthfuls 11.
As the improvement to present embodiment, be connected with top dw 12 in the import of described upper sealing valve 2, top dw 12 can be connected with the discharge port of charging equipment by ring flange, can avoid the dust pollution of charging equipment in the reinforced process of charging batch can 1.
As the improvement to present embodiment, the import that the outlet of described material flow gate 3 is connected with lower sealing valve connects by corrugated tube 13, can remedy manufacturing and the assembling error of each parts by corrugated tube 13, makes assembling easier.
As the improvement to present embodiment, be provided with batch can access door 14 on the described charging batch can 1, convenient maintenance to charging batch can 1 and upper sealing valve 2.
As the improvement to present embodiment, be provided with distributor access door 15 on the described material stock storehouse 5, convenient maintenance to material stock storehouse 5, distributor and lower sealing valve 4.
As the improvement to present embodiment, along being furnished with weighing device 16 on its week, can control charging equipment to the reinforced work of charging batch can 1 by weighing device 16 on described charging batch can 1 outer wall.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (9)
1. shaft furnace top charging device, it is characterized in that: comprise the charging batch can, be arranged on the upper sealing valve in the import of charging batch can, the distributor that is arranged on the material flow gate in the batch can outlet of feeding, the lower sealing valve that is connected with the material flow gate outlet, the material stock storehouse that is connected with the lower sealing valve discharge port and is connected with the outlet of material stock storehouse, be provided with equal row pressure interface on the described charging batch can.
2. described shaft furnace top charging device according to claim 1, it is characterized in that: described distributor comprises terminal pad and at least two tremie pipes that circumferentially are evenly arranged along terminal pad.
3. described shaft furnace top charging device according to claim 2 is characterized in that: be provided with conical drop guide on the described terminal pad.
4. described shaft furnace top charging device according to claim 2 is characterized in that: be provided with on the described tremie pipe and disclose material mouthful.
5. described shaft furnace top charging device according to claim 1 is characterized in that: be connected with the top dw in the import of described upper sealing valve.
6. described shaft furnace top charging device according to claim 5 is characterized in that: the outlet of described material flow gate is connected import and is connected by corrugated tube with lower sealing valve.
7. described shaft furnace top charging device according to claim 6 is characterized in that: be provided with the batch can access door on the described charging batch can.
8. described shaft furnace top charging device according to claim 7, it is characterized in that: described material stock is provided with the distributor access door on the storehouse.
9. arbitrary described shaft furnace top charging device according to claim 1-8 is characterized in that: on the described charging batch can outer wall along being furnished with weighing device on its week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622852 CN202898446U (en) | 2012-11-22 | 2012-11-22 | Top charging device of shaft furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622852 CN202898446U (en) | 2012-11-22 | 2012-11-22 | Top charging device of shaft furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202898446U true CN202898446U (en) | 2013-04-24 |
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ID=48119138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220622852 Expired - Lifetime CN202898446U (en) | 2012-11-22 | 2012-11-22 | Top charging device of shaft furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202898446U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912059A (en) * | 2012-11-22 | 2013-02-06 | 中冶赛迪工程技术股份有限公司 | Top charging device of shaft furnace |
| CN106834584A (en) * | 2017-03-23 | 2017-06-13 | 江苏省冶金设计院有限公司 | A kind of method of gas-based shaft kiln and production DRI |
| CN106871646A (en) * | 2017-03-15 | 2017-06-20 | 中国恩菲工程技术有限公司 | High-temperature material charging apparatus |
-
2012
- 2012-11-22 CN CN 201220622852 patent/CN202898446U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912059A (en) * | 2012-11-22 | 2013-02-06 | 中冶赛迪工程技术股份有限公司 | Top charging device of shaft furnace |
| CN106871646A (en) * | 2017-03-15 | 2017-06-20 | 中国恩菲工程技术有限公司 | High-temperature material charging apparatus |
| CN106834584A (en) * | 2017-03-23 | 2017-06-13 | 江苏省冶金设计院有限公司 | A kind of method of gas-based shaft kiln and production DRI |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |