CN211753260U - Fixed anode furnace flue gas dust removal device with filter bag protection - Google Patents
Fixed anode furnace flue gas dust removal device with filter bag protection Download PDFInfo
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- CN211753260U CN211753260U CN202020263288.2U CN202020263288U CN211753260U CN 211753260 U CN211753260 U CN 211753260U CN 202020263288 U CN202020263288 U CN 202020263288U CN 211753260 U CN211753260 U CN 211753260U
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- removal device
- dust removal
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Abstract
The utility model relates to a fixed anode furnace flue gas dust removal device with filter bag protection, which comprises a smoke exhaust fan, a bag-type dust remover and an inlet smoke tube, wherein the inlet smoke tube is provided with a working door, the bag-type dust remover is provided with a plurality of filter bags, the outer wall of each filter bag is adsorbed with a protective layer, and the protective layer is composed of diatomite particles; the dust removal device is improved on the basis of the conventional cloth bag dust removal device, the problem that a filter bag is stuck with a paste bag is effectively solved, the service life of the filter bag is prolonged, and the economic benefit is remarkable.
Description
Technical Field
The utility model belongs to the technical field of the reclaimed copper production facility technique and specifically relates to a take fixed anode furnace flue gas dust collector of filter bag protection.
Background
When the fixed anode furnace is used for producing the regenerated copper, the flue gas in the production process is purified and dedusted by the bag-type deduster. Currently, the furnace shut down time of stationary anode furnaces exceeds 50% due to raw material supply and production organization. And during the furnace shutdown period, the temperature of the filter material of the bag-type dust collector is normal temperature. Before the production of the fixed anode furnace, the furnace must be baked, fuel is combusted, the temperature of a hearth is gradually raised to 1200 ℃ from normal temperature, the baking time is generally 3-7 days, the temperature of flue gas of the anode furnace is very low during the baking period and the initial stage of the furnace opening, the temperature of the flue gas entering a bag-type dust collector is 30-70 ℃, and the temperature of the flue gas is lower when the temperature is low. Because the temperature of the flue gas is far lower than the dew point of the flue gas, water vapor in the flue gas can be condensed on the surface of the filter bag of the bag-type dust collector to separate out water, the filter bag generates the problem of dewing, and then the water vapor is combined with fine dust in the flue gas to cause bag pasting, so that the filter bag loses air permeability and cannot be used, and can only be replaced, and great economic loss is caused.
Disclosure of Invention
The utility model aims at providing a take fixed anode furnace flue gas dust collector of filter bag protection to above-mentioned condition, this dust collector improves on current sack dust collector basis, has effectively solved the problem that the bag was stuck with paste to the filter bag, has prolonged the life of filter bag, and economic benefits is showing.
The utility model has the following concrete scheme: the fixed anode furnace flue gas dust removal device comprises a smoke exhaust fan, a bag-type dust remover and an inlet smoke tube, wherein a working door is arranged on the inlet smoke tube, a plurality of filter bags are arranged in the bag-type dust remover, each filter bag is adsorbed on the outer wall of the corresponding filter bag, and the protective layer is composed of diatomite particles.
Furthermore, in the utility model, the diatomite particles have 200 meshes and the water content is less than 0.5 percent.
Further, the volume density of the diatomite particles in the present invention is 0.6g/cm 3.
Furthermore, in the utility model, the diatomite particles are made of diatomite insulating bricks by crushing.
The utility model discloses a filter bag protection technique developed, the formula is simple, low cost, and the construction is simple and convenient, has effectively prevented filter bag dewfall problem when fixed anode furnace baker period and flue gas temperature is low during the initial stage of blowing in, and then has eliminated the problem of sticking with paste the bag, has prolonged the life of filter bag greatly, and economic benefits is showing.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention;
fig. 2 is a schematic view of a single filter bag in the present invention.
In the figure: 1-smoke exhaust fan, 2-air pipe, 3-bag dust remover, 4-filter bag, 5-inlet smoke pipe, 6-working door, 7-diatomite particle.
Detailed Description
Referring to fig. 1 and 2, the utility model relates to a fixed anode furnace flue gas dust collector with filter bag protection, including smoke exhaust fan 1, sack cleaner 3 and import tobacco pipe 5, be equipped with work door 6 on the import tobacco pipe, be equipped with a plurality of filter bags 4 in the sack cleaner, every all adsorb the protective layer on the outer wall of filter bag, the protective layer comprises diatomaceous earth granule 7.
Further, in the present embodiment, the diatomite particles have a 200-mesh size and a water content of less than 0.5%.
Further, the volume density of the diatomaceous earth particles in this example was 0.6g/cm 3.
Further, in this embodiment, the diatomite particles are made by crushing diatomite insulating bricks.
When the fixed anode furnace is used, after the fixed anode furnace is stopped, the bag-type dust collector is cooled to normal temperature, the smoke exhaust fan is started, the pressure difference of the bag-type dust collector is checked, then the smoke exhaust fan is closed, diatomite particles with 200 meshes and the water content of less than 0.5 percent are added through a working door of an inlet smoke tube, the adding amount is calculated according to 300g of the filter area of each square meter of the bag-type dust collector, and finally, the smoke exhaust fan is restarted to adsorb the diatomite particles to the surface of the filter bag; meanwhile, the pressure difference of the bag-type dust collector is checked, and when the pressure difference is increased by 350Pa, the smoke exhaust fan is closed, and a protective layer is formed on the surface of a filter bag of the bag-type dust collector, so that the bag-type dust collector can be put into use.
The diatomite particles with the granularity of 200 meshes and the volume density of 0.6g/cm3 are prepared by crushing recycled used diatomite insulating bricks, and the novel diatomite insulating bricks are of course preferably adopted.
According to the filter bag protection technology, the diatomite particle layer is formed on the surface of the filter bag of the bag-type dust collector, and the diatomite particle layer is used as a moisture absorption layer to absorb water separated out from low-temperature flue gas entering the bag-type dust collector during the oven drying period of the fixed anode furnace and the initial period of the opening furnace by utilizing the properties that the porosity of the diatomite is as high as 85%, the water absorption is strong, and the water absorption rate can reach 2-4 times of the volume of the diatomite particle layer, so that the filter bag is prevented from dewing, the problem of bag pasting is solved, the service life of the filter bag is prolonged. The diatomite granular layer has loose structure, can not be hardened after absorbing water, and does not influence the surface filtering effect of the filter bag.
When the temperature of the flue gas at the inlet of the bag-type dust collector is increased to a normal level, the diatomite particles gradually release absorbed moisture, and the water vapor is converted into water vapor to enter the flue gas and be absorbed out of the bag-type dust collector.
The utility model discloses a filter bag protection technique developed, the formula is simple, low cost, and the construction is simple and convenient, has effectively prevented filter bag dewfall problem when fixed anode furnace baker period and flue gas temperature is low during the initial stage of blowing in, and then has eliminated the problem of sticking with paste the bag, has prolonged the life of filter bag greatly, and economic benefits is showing.
Claims (4)
1. The utility model provides a take fixed anode furnace flue gas dust collector of filter bag protection, is equipped with the work door including smoke exhaust fan, sack cleaner and import tobacco pipe on the import tobacco pipe, is equipped with a plurality of filter bags, its characterized in that in the sack cleaner: the outer wall of each filter bag is adsorbed with a protective layer, and the protective layer is composed of diatomite particles.
2. The fixed anode furnace flue gas dust removal device with the filter bag protection function as claimed in claim 1, wherein: the diatomite particles are 200 meshes and have the water content of less than 0.5 percent.
3. The fixed anode furnace flue gas dust removal device with the filter bag protection function as claimed in claim 1, wherein: the volume density of the diatomite particles is 0.6g/cm3。
4. The fixed anode furnace flue gas dust removal device with the filter bag protection function as claimed in claim 1, wherein: the diatomite particles are prepared by crushing diatomite insulating bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020263288.2U CN211753260U (en) | 2020-03-06 | 2020-03-06 | Fixed anode furnace flue gas dust removal device with filter bag protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020263288.2U CN211753260U (en) | 2020-03-06 | 2020-03-06 | Fixed anode furnace flue gas dust removal device with filter bag protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211753260U true CN211753260U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202020263288.2U Active CN211753260U (en) | 2020-03-06 | 2020-03-06 | Fixed anode furnace flue gas dust removal device with filter bag protection |
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| CN (1) | CN211753260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674160A (en) * | 2022-04-25 | 2022-06-28 | 无锡红旗除尘设备有限公司 | Electric furnace flue gas treatment method |
-
2020
- 2020-03-06 CN CN202020263288.2U patent/CN211753260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674160A (en) * | 2022-04-25 | 2022-06-28 | 无锡红旗除尘设备有限公司 | Electric furnace flue gas treatment method |
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