CN212864816U - Device for solving abnormal empty value of material in material tank - Google Patents
Device for solving abnormal empty value of material in material tank Download PDFInfo
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- CN212864816U CN212864816U CN202021370910.6U CN202021370910U CN212864816U CN 212864816 U CN212864816 U CN 212864816U CN 202021370910 U CN202021370910 U CN 202021370910U CN 212864816 U CN212864816 U CN 212864816U
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Abstract
The utility model relates to a solve abnormal device of material empty value of material jar, including the control valve, control valve one end intercommunication compressed air sweeps the device, the control valve other end communicates two branch pipes respectively, two the branch pipe is located the both sides of movable flashboard respectively, and two the branch pipe all is linked together with the dust removal circuit; one side of the dust removal loop, which is far away from the movable flashboard, is sequentially communicated with a connecting pipe and a dust removal system. The utility model discloses reform transform simply, compressed air daily consumption is low, enables not deposition of dust in the dust removal circuit, has eliminated because of the hard contact that the dust removal circuit blockked up and cause in the dust collector, has solved the unusual problem of material jar material empty value promptly.
Description
Technical Field
The utility model relates to a metallurgical machine's technical field, more specifically say, it relates to a solve unusual device of blast furnace feeding system material jar material empty value.
Background
The abnormal material empty value of the material tank of the blast furnace feeding system directly influences the actual feeding weight of the blast furnace material tank and the weighing weight of the material tank to have large deviation, and when the material is distributed according to the gravimetric method, the distribution turns and the weight of the same distribution angle have large deviation with the previous batch, so that the gas flow in the blast furnace is disordered, the influence on the furnace condition and the fuel consumption is large, and after the material is durable, the furnace condition is directly influenced to be out of order. The main reason for generating abnormal empty value of charging bucket material is that the dust removing loop in the dust collector between the charging bucket and the weighing bucket on the furnace top is blocked, and the soft connection between the charging bucket and the weighing bucket on the furnace top is changed into hard contact. Although one end of the dust collector is communicated with the furnace top dust removal system, a dust removal loop serving as a suction inlet is located in a closed space between the charging tank and the weighing tank, and although a movable flashboard is arranged on the outer side of the dust collector, if the flashboard is pulled open, dust in the charging tank is easy to leak outwards and does not meet the environment protection requirement of the blast furnace, the movable flashboard is always in a closed state, but the furnace top dust removal system and the dust removal loop in the dust collector cannot form a smooth air channel, so that the dust removal loop cannot be timely swept due to accumulated dust after the long-term production, the whole dust removal loop is blocked due to cleaning, the original soft connection between the charging tank and the weighing tank on the furnace top is changed into hard contact, and the abnormal empty value of the charging tank is also caused. In order to solve the abnormal situation of the empty value of the material tank, the influence on the blast furnace is reduced, and the dedusting circular channel is manually cleaned by damping down for 5-6 hours.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a solve unusual method of material jar material empty value, this method enables not deposition of dust in the dust removal circuit, has eliminated the hard contact that causes because of the dust removal circuit blocks up in the dust collector, has solved the unusual problem of material jar material empty value promptly. The utility model also provides a realize the above-mentioned device of solving the unusual method of material empty value of charging system material jar, the device is reformed transform and is set up simply with the installation, and compressed air daily consumption is low, sweeps cleanly more thoroughly.
The above technical purpose of the present invention can be achieved by the following technical solutions: a device for solving the abnormal empty value of a material in a material tank is characterized in that a movable flashboard is arranged on one side of a dust removal loop in the material tank, the device comprises a control valve, one end of the control valve is communicated with a compressed air blowing device, the other end of the control valve is respectively communicated with two branch pipes, the two branch pipes are respectively arranged on two sides of the movable flashboard, and the two branch pipes are both communicated with the dust removal loop; one side of the dust removal loop, which is far away from the movable flashboard, is sequentially communicated with a connecting pipe and a dust removal system.
Further, the control valve is in signal connection with a PLC control system of the feeding system.
Further, the compressed air blown out by the compressed air blowing device is blown for 30-60 seconds every 2-3 times, and the pressure of the compressed air is required to be more than or equal to 0.6 MPa.
Furthermore, the connecting pipe comprises a horizontal section, one side of the horizontal section is communicated with an air inlet suction inlet, and an angle alpha formed by the air inlet direction of the air inlet suction inlet and the flow direction of air in the horizontal section is 30-60 degrees.
Furthermore, the connecting pipe also comprises an extension section communicated with the horizontal section, a dust collecting box is communicated with the lower part of the extension section through a pipeline, and the dust collecting box is positioned on one side of the lower part of the extension section.
Further, the dust removal system is a bag-type dust remover.
To sum up, the utility model discloses following beneficial effect has:
1. the utility model discloses can use widely to big, medium and small-size blast furnace of iron-making industry, intermittent type nature sweeps and guarantees not deposition in the dust removal circuit, has solved the furnace roof receive the material jar and has weighed the dust removal circuit in the dust collector between the jar and block up and cause hard contact, the unusual problem of material empty value of the material jar that leads to.
2. The utility model discloses a device carries out relevant transformation to original material jar, can implement in step when the blast furnace is regularly repaiied, and the transformation is simple, and daily consumption is low, reduces the blast furnace damping down rate by a wide margin, can promote blast furnace direct motion and increase production.
3. The air inlet suction inlet ensures that air can be fed, and the ore coke dust cannot float out to influence the field environment; a good air duct is formed between the dust removal system and a dust removal loop in the dust collector, and the sweeping and cleaning of dust in the dust removal loop are accelerated. The dust collecting box solves the problem that a dust removing pipeline is easy to block.
Drawings
FIG. 1 is a schematic structural diagram of a furnace top charging system of the present invention;
fig. 2 is a schematic plan view of a method for solving the abnormal empty value of the charging bucket of the present invention.
In the figure: 1-material receiving tank, 2-material loading gate, 3-flexible connection, 4-dust collector, 5-weighing tank, 6-dust removing loop, 7-movable gate plate, 8-control valve, 9-horizontal section, 10-air inlet suction inlet, 11-extension section, 12-dust collecting box and 13-dust removing system.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
As shown in fig. 1 and 2, a device for solving the abnormal empty value of the material of a charging bucket, firstly, the existing charging system comprises a receiving tank 1, a charging gate 2, a dust collector 4 and a weighing tank 5 which are sequentially connected from top to bottom, and a flexible connection 3 is further arranged between the charging gate 2 and the dust collector 4 so as to facilitate installation and disassembly and be suitable for different sizes. The outer side edge of a dust removing loop 6 in a dust collector 4 is respectively positioned at two sides of a movable flashboard 7, the dust removing loop 6 is intermittently swept by using compressed air, the compressed air is swept for 30-60 seconds every 2-3 times, the pressure of the compressed air is required to be more than or equal to 0.6MPa, a dust removing system 13 is communicated with one side of the dust removing loop 6, which is far away from the movable flashboard 7, so as to collect dust, if the pipeline is long, a dust collecting box 12 can be arranged at a corner or can be arranged in a plurality according to actual conditions, dust with large granularity is collected by using the action of gravity, and dust with small granularity enters the dust removing system 13 along a connecting pipe along with dust removing wind. The utility model discloses can use widely to big, medium and small-size blast furnace of iron-making industry, intermittent type nature sweeps and guarantees not deposition in the dust removal circuit, has solved the furnace roof receive the material jar and has weighed the dust removal circuit in the dust collector between the jar and block up and cause hard contact, the unusual problem of material empty value of the material jar that leads to.
The utility model discloses a compressed air sweeps to the opposite side from one side, alleviates compressed air and sweeps required load, and makes the whole ring homoenergetic of dust removal circuit 6 sweep uniformly, and avoids only using a pipeline and need sweep whole ring and cause the clearance unclean. And compressed air sweeps the requirement and adjusts through experiment many times to guarantee that the dust is difficult for piling up on dust removal loop 6, avoid not clearing up for a long time and cause stubborn dust accumulation, clean with this rate moreover, compressed air pressure requires to set up lowly, effectively reduces compressed air's daily consumption, also can guarantee to sweep thoroughly. Dust removal ring road 6 and dust pelletizing system 13 generally are through the connecting tube intercommunication, because dust pelletizing system 13 all exists in current blast furnace charging system basically, need be used for connecting other stations and carry out concentrated dust removal, and therefore the connecting tube that causes connects overlength or need upwards turn etc. when connecting, can separately collect the dust, utilize the big dust of corner granularity to receive the weight effect and fall to the bottom, and be difficult to get into dust pelletizing system 13 along with dust removal wind, can collect preferentially and detach large granule dust, avoid it to block up the pipeline, also lighten dust removal load for subsequent dust pelletizing system 13.
The device comprises a control valve 8, wherein one end of the control valve 8 is communicated with a compressed air blowing device, the other end of the control valve 8 is respectively communicated with two branch pipes, the two branch pipes are respectively arranged at two sides of a movable flashboard 7, and the two branch pipes are both communicated with a dust removal loop 6 in a dust collector 4; one side of the dust removing loop 6, which is far away from the movable flashboard 7, is sequentially communicated with a connecting pipe and a dust removing system 13. The device can be used for carrying out related transformation on the existing charging bucket, can be synchronously implemented during the fixed maintenance of the blast furnace, is simple in transformation and low in daily consumption, greatly reduces the damping down rate of the blast furnace, and can promote the smooth operation and yield increase of the blast furnace. Through the control of the control valve 8, the compressed air purging device can realize the intermittent purging of compressed air, the flow direction of air enters the dust removal loop 6 from the positions on the two sides of the movable flashboard 7, and the air enters the connecting pipe after respectively winding for half a circle along the dust removal loop 6 and flows to the dust removal system 13 under the action of an exhaust fan of the dust removal system 13. The dust removal system 13 is a bag-type dust remover, and the bag-type dust remover has a better effect than an electric dust remover.
In this embodiment, the material loading process can be controlled through the PLC control system basically to current feeding system, control valve 8 and material loading floodgate 2 all with feeding system's PLC control system signal connection, increase a simple electrical control applet in current PLC control system to the opening and closing of control valve 8, according to the opening and closing of material loading floodgate 2, every 3 times of putting the material then open control valve 8 and sweep 60 seconds, can finely tune according to actual conditions, thereby realize the automatic function that intermittent type swept.
In this embodiment, the connecting pipe includes a horizontal section 9 and an extension section 11, one side of the horizontal section 9 is communicated with an air inlet suction inlet 10, and an angle α formed by an air inlet direction of the air inlet suction inlet 10 and a flow direction of air in the horizontal section 9 is 30 ° to 60 °. In order to avoid complete sealing in the connecting pipe or the need of increasing the power of the dust removal system 13 due to the overlong connecting pipe, thereby causing the exhaust fan of the dust removal system 13 to influence the interior of the dust removal loop 6, so that the material is sucked into the dust removal air to flow, the connecting pipe is provided with an air inlet suction inlet 10, and the design of the angle ensures that air can be introduced, the influence of the air pressure in the connecting pipe on the dust removal loop 6 is reduced, and the situation that the field environment is influenced due to the flying of the ore coke dust can be avoided. In order to connect with the dust removing system 13, the connecting pipe is further provided with an extension section 11, the extension section 11 can be set to be a fixed pipeline according to actual needs and the specific position of the dust removing system 13, and the extension section can be horizontally arranged or obliquely arranged upwards or obliquely arranged downwards, or can form a corner with the horizontal section 9 according to the position relation, and the main function is to extend the horizontal section 9 to be connected with the dust removing system 13. The lower part of the extension section 11 is communicated with a dust collection box 12 through a pipeline, and the dust collection box 12 is positioned on one side of the lower part of the extension section 11. Dust collection box 12 is used for collecting the large granule dust, and during this type of dust was through the pipeline of connection, received the action of gravity and fall dust collection box 12 in, the dust of tiny granule then can continue to get into dust pelletizing system 13 along with dust removal wind, effectively solves especially corner in the pipeline, and the problem of jam is piled up easily to large granule thing. The dust collection box 12 is not arranged right below the extension section 11, so that the dust collection box 12 is prevented from directly disturbing dust collected in the dust collection box 12 under the action of an exhaust fan, and normal flow of dust removal wind is prevented from being influenced.
And because follow-up dust pelletizing system 13 generally adopts the sack cleaner, gets rid of most large granule dust, has avoided the sack cleaner to be blockked up by large granule thing and need often wash, and the film can be formed on the sack surface of sack cleaner to the tiny particle dust, and the interval that forms after being distinguished from large granule thing by isolated is too big, can block up less a plurality of holes moreover completely, and the sack cleaner has more high-efficient better dust collecting capacity to the tiny particle dust.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A device for solving the abnormal empty value of a material in a material tank is characterized by comprising a control valve (8), wherein one end of the control valve (8) is communicated with a compressed air purging device, the other end of the control valve (8) is communicated with two branch pipes respectively, the two branch pipes are arranged on two sides of the movable flashboard (7) respectively, and the two branch pipes are communicated with the dust removal loop (6); one side of the dust removal loop (6) far away from the movable flashboard (7) is sequentially communicated with a connecting pipe and a dust removal system (13).
2. The device for solving the abnormal empty value of the charging bucket of claim 1, wherein the control valve (8) is in signal connection with a PLC control system of a charging system.
3. The device for solving the abnormal material empty value of the charging bucket according to claim 2, wherein the compressed air blown by the compressed air blowing device is blown for 30-60 seconds every 2-3 times, and the pressure of the compressed air is required to be more than or equal to 0.6 MPa.
4. The device for solving the abnormal material empty value of the charging bucket according to claim 1, wherein the connecting pipe comprises a horizontal section (9), one side of the horizontal section (9) is communicated with an air inlet suction inlet (10), and an angle α formed by the air inlet direction of the air inlet suction inlet (10) and the flow direction of the air in the horizontal section (9) is 30-60 °.
5. The device for solving the abnormal empty value of the charging bucket is characterized in that the connecting pipe also comprises an extension section (11) communicated with the horizontal section (9), the lower part of the extension section (11) is communicated with a dust collection box (12) through a pipeline, and the dust collection box (12) is positioned at one side below the extension section (11).
6. The device for solving the abnormal empty value of the material tank as in claim 4 or 5, wherein the dust removing system (13) is a bag-type dust remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021370910.6U CN212864816U (en) | 2020-07-13 | 2020-07-13 | Device for solving abnormal empty value of material in material tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021370910.6U CN212864816U (en) | 2020-07-13 | 2020-07-13 | Device for solving abnormal empty value of material in material tank |
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| CN212864816U true CN212864816U (en) | 2021-04-02 |
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| CN202021370910.6U Active CN212864816U (en) | 2020-07-13 | 2020-07-13 | Device for solving abnormal empty value of material in material tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793730A (en) * | 2020-07-13 | 2020-10-20 | 广东韶钢松山股份有限公司 | Method and device for solving problem of abnormal empty value of material in material tank |
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2020
- 2020-07-13 CN CN202021370910.6U patent/CN212864816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793730A (en) * | 2020-07-13 | 2020-10-20 | 广东韶钢松山股份有限公司 | Method and device for solving problem of abnormal empty value of material in material tank |
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