CN217431221U - Water dust removal device for active lime digestion - Google Patents
Water dust removal device for active lime digestion Download PDFInfo
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- CN217431221U CN217431221U CN202220975537.XU CN202220975537U CN217431221U CN 217431221 U CN217431221 U CN 217431221U CN 202220975537 U CN202220975537 U CN 202220975537U CN 217431221 U CN217431221 U CN 217431221U
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Abstract
The utility model relates to a water dust collector of active lime digestion, including the dust cage that connects gradually, first dust removal tobacco pipe, second induced duct and the pipe of discharging fume, its characterized in that: a water dust removal device is arranged between the first dust removal smoke pipe and the second induced draft pipe, the water dust removal device comprises an inner smoke cover and an outer smoke cover, the inner smoke cover is arranged in the outer smoke cover, an annular space formed between the lower edge plane of the inner smoke cover and the lower edge plane of the outer smoke cover is used as a filtering water pool, a plurality of exhaust holes are symmetrically formed in the lower edge plane of the inner smoke cover, exhaust pipes are arranged on the exhaust holes, the air inlet ends of the exhaust pipes are arranged in the inner smoke cover, and the air outlet ends of the exhaust pipes extend into the water level lower limit of the filtering water pool so as to form a water seal; and a replenishing water pipe is arranged on the side wall of the outer smoke hood and above the water level of the filter water tank. The advantages are that: after the dust generated by slaking the active lime is removed by the water dust removing device, the dust pollution problem is effectively eliminated, the surrounding environment is improved, and the environmental pollution is reduced.
Description
Technical Field
The utility model belongs to the technical field of solid-liquid separation dehydration, especially, relate to a water dust collector of active lime digestion.
Background
In the production process of sintering, active lime (CaO) is required to be added, and slaked lime (Ca (OH) is generated after a slaking reaction is carried out after water is added 2 ) The surface of the slaked lime is in a colloid state, has strong water absorption and large viscosity, and can improve the balling property of the sintering mixture. However, during the digestion process of the active lime, a large amount of water vapor is generated, and the vapor is discharged to the surrounding environment along with a large amount of dust, so that the environment is polluted. The problem of dust pollution caused in the process of quicklime digestion is not well solved at home and abroad for many years.
In the past, steam and dust are discharged into the air through a chimney, and the dust contains a large amount of slaked lime (Ca (OH) 2 ) After being discharged, the environment is seriously polluted, and the body of workers is also injured. Due to slaked lime (Ca (OH) 2 ) The dust remover has the characteristic of high viscosity, and is very easy to be bonded in a dust removing pipeline and a dust remover body to block the pipeline and the dust remover body, so that the operation efficiency of the dust remover is reduced and even the dust remover is ineffective.
The dust digestion device adopted at present is provided with a water pipe in an exhaust pipe, and a plurality of water spray nozzles are arranged on the water pipe; or a plurality of shower nozzles are arranged in the pipeline, and the dust absorption effect of spraying water is achieved. However, the scheme has the defects that water is often sprayed out to form water drops or water columns with larger diameters, the residence time of the water drops or the water columns with the larger diameters in the air in the pipe is shorter, and the action time of contact and adsorption with dust is shortened, so that the dust removal effect is not ideal, and the water consumption is high.
Disclosure of Invention
The utility model aims at solving the problems and providing a water dust removing device for active lime slaking, which has better dust removing effect and saves water simultaneously.
The utility model discloses a realize through following technical scheme:
the utility model discloses a water dust collector of active lime digestion, including the dust cage that connects gradually, first dust removal tobacco pipe, the second induced duct that has the fan and the pipe of discharging fume, its characterized in that: a water dust removing device is arranged between the first dust removing smoke tube and the second induced draft tube, the water dust removing device comprises an inner smoke hood and an outer smoke hood, the inner smoke hood is a closed smoke hood, the lower part of the closed smoke hood is provided with an air inlet, the lower part of the outer smoke hood is provided with a connecting through hole, the upper part of the closed smoke hood is provided with an air outlet, the lower edge plane of the outer smoke hood is fixed on the upper part of the dust hood through a fixing bracket, the connecting through hole of the outer smoke hood is fixedly connected on the outer wall of the first dust removing smoke tube, the air outlet on the upper part of the outer smoke hood is communicated with the second induced draft tube,
the inner smoke hood is arranged in the outer smoke hood, an air inlet of the inner smoke hood is fixedly connected to the outer wall of the first dust removing smoke pipe, an annular space formed between the plane of the lower edge of the inner smoke hood and the plane of the lower edge of the outer smoke hood is used as a filtering water tank for containing filtered water, a plurality of exhaust holes are symmetrically formed in the plane of the lower edge of the inner smoke hood, exhaust pipes are arranged on the exhaust holes, an air inlet end of each exhaust pipe is arranged in the inner smoke hood, and an air outlet end of each exhaust pipe extends into the position below the water level of the filtering water tank so as to form a water seal;
and a replenishing water pipe is arranged on the side wall of the outer smoke hood and above the water level of the circulating water tank.
Preferably, the inner wall of the first dust removal smoke pipe is further provided with a dust collection ring, and the inner wall of the first dust removal smoke pipe and the dust collection ring are provided with heat-resistant rubber.
Preferably, the first dust removal smoke pipe is provided with an overflow pipe at the lower part of the lower edge plane of the inner smoke cover, and the overflow pipe is higher than the air outlet of the exhaust pipe.
Preferably, a sewage draining outlet is arranged on the lower edge plane of the outer smoke hood.
The utility model has the advantages that:
compared with the prior art, after a large amount of dust generated in the slaking and digesting process of the active lime is dedusted by the water dedusting device, the dust pollution problem is effectively eliminated, and the surrounding environment is improved; meanwhile, hot slurry generated from the overflow pipe is directly sent back to the quicklime slaker through the overflow pipe for slaking quicklime, no waste water is discharged outside the whole system, and the environmental pollution is further reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a water dust collector of active lime digestion, including the dust cage 3 that connects gradually, first dust removal tobacco pipe 7, have second induced air pipe 10 and the pipe 12 of discharging fume of fan 11, its characterized in that: a water dust removal device is arranged between the first dust removal smoke tube 7 and the second induced draft tube 10, the water dust removal device comprises an inner smoke hood 6 and an outer smoke hood 5, the inner smoke hood 6 is a closed smoke hood with an air inlet at the lower part, the outer smoke hood 5 is a smoke hood with a connecting through hole at the lower part and an air outlet at the upper part, the lower edge plane 51 of the outer smoke hood is fixed at the upper part of the dust hood 3 through a fixing bracket 4, the connecting through hole of the outer smoke hood is connected to the outer wall of the first dust removal smoke tube 7, and the air outlet at the upper part is communicated with the second induced draft tube 10;
the inner smoke hood 6 is arranged in the outer smoke hood 5, an air inlet of the inner smoke hood is fixedly connected to the outer wall of the first dust removing smoke pipe 7, an annular space formed between a lower edge plane 61 of the inner smoke hood and a lower edge plane 61 of the outer smoke hood is used as a filtering water tank for containing filtered water 9, a plurality of exhaust holes are formed in the lower edge plane 61 of the inner smoke hood, exhaust pipes 8 are arranged on the exhaust holes, an air inlet end of each exhaust pipe 8 is arranged in the inner smoke hood 5, and an air outlet end of each exhaust pipe 8 extends into the water level of the filtering water tank to form water seal;
a replenishing water pipe 13 is arranged on the side wall of the outer smoke hood 5 at a position above the water level of the filter water tank.
The utility model is provided with a rapping device 71 at the lower part of the outer side of the first dust-removing smoke tube 7,the inner wall of the first dust-removing smoke tube is also provided with a dust collecting ring 72, and the inner wall of the first dust-removing smoke tube 7 and the dust collecting ring 72 are provided with heat-resistant rubber 73. The first dust-removing smoke tube 7 and the dust-collecting ring 5 are knocked regularly to hang on the slaked lime (Ca (OH) 2 ) Drop onto mix 2.
The novel working principle is as follows:
in the sintering and batching process, a mixture 2 containing active lime (CaO) is added to the upper part of the belt 1, after water is added, the active lime (CaO) generates a digestion reaction to generate a large amount of steam, the steam enters the first dust removing smoke tube 7 through the gas collecting hood 3, and when the steam rises in the first dust removing smoke tube 7, partial slaked lime (Ca (OH) 2 ) Hanging on the dust collecting ring 72; the steam then enters the filtering water tank through the exhaust pipe 8, and in the filtering water 9, the active lime (CaO) and the hydrated lime (Ca (OH) in the steam 2 ) And the steam is precipitated in a filter water tank, and the steam after dust removal floats out of the water surface under the action of a fan 11 and is then discharged into the air through a second induced draft pipe 10 and a smoke discharge pipe 12.
Utility model first dust removal tobacco pipe 7 on, the lower part of the lower edge plane 61 of interior petticoat pipe is equipped with overflow pipe 14, just overflow pipe 14 be higher than the gas outlet setting of blast pipe 8. The filtering water pool is slightly replenished for a long time through a replenishing water pipe 13 to reduce the temperature and the concentration of the water pool, and meanwhile, overflowing water passes through an overflow pipe 14 to contain slaked lime (Ca (OH) 2 ) The slurry flows onto the mixture 2, and the material temperature and the bonding degree of the mixture 2 are improved.
The utility model is provided with a drain outlet on the lower edge plane of the outer smoke cover. The dust and mud on the lower edge plane of the outer smoke hood can be cleaned regularly.
Claims (5)
1. The utility model provides a water dust collector of active lime digestion, is including the dust cage that connects gradually, first dust removal tobacco pipe, the second induced duct that has the fan and the pipe of discharging fume, its characterized in that: a water dust removal device is arranged between the first dust removal smoke tube and the second induced draft tube, the water dust removal device comprises an inner smoke hood and an outer smoke hood, the inner smoke hood is a closed smoke hood with an air inlet at the lower part, the outer smoke hood is a smoke hood with a connecting through hole at the lower part and an air outlet at the upper part, the lower edge plane of the outer smoke hood is fixed at the upper part of the dust hood through a fixed bracket, the connecting through hole of the outer smoke hood is fixedly connected on the outer wall of the first dust removal smoke tube, the air outlet at the upper part is communicated with the second induced draft tube,
the inner smoke hood is arranged in the outer smoke hood, an air inlet of the inner smoke hood is fixedly connected to the outer wall of the first dust removing smoke pipe, an annular space formed between the plane of the lower edge of the inner smoke hood and the plane of the lower edge of the outer smoke hood is used as a filtering water tank for containing filtered water, a plurality of exhaust holes are symmetrically formed in the plane of the lower edge of the inner smoke hood, exhaust pipes are arranged on the exhaust holes, an air inlet end of each exhaust pipe is arranged in the inner smoke hood, and an air outlet end of each exhaust pipe extends into the position below the water level of the filtering water tank so as to form a water seal;
and a replenishing water pipe is arranged on the side wall of the outer smoke hood and above the water level of the filter water tank.
2. The water dust removal device for active lime digestion according to claim 1, characterized in that: and a rapping device is arranged at the lower part of the outer side of the first dust-removing smoke pipe.
3. The active lime slaking water dust removing apparatus according to claim 1, characterized in that: the inner wall of the first dust-removing smoke tube is also provided with a dust-collecting ring, and the inner wall of the first dust-removing smoke tube and the dust-collecting ring are provided with heat-resistant rubber.
4. The water dust removal device for active lime digestion according to claim 1, characterized in that: the first dust removal smoke pipe on, the lower part of the lower edge plane of the inner smoke cover is provided with an overflow pipe, and the overflow pipe is higher than the gas outlet of the exhaust pipe.
5. The water dust removal device for active lime digestion according to claim 1, characterized in that: a sewage draining outlet is arranged on the lower edge plane of the outer smoke hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220975537.XU CN217431221U (en) | 2022-04-26 | 2022-04-26 | Water dust removal device for active lime digestion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220975537.XU CN217431221U (en) | 2022-04-26 | 2022-04-26 | Water dust removal device for active lime digestion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217431221U true CN217431221U (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220975537.XU Active CN217431221U (en) | 2022-04-26 | 2022-04-26 | Water dust removal device for active lime digestion |
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| Country | Link |
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| CN (1) | CN217431221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116850724A (en) * | 2023-09-05 | 2023-10-10 | 国能龙源环保有限公司 | Polluted gas filtering equipment and limestone slurry tank |
-
2022
- 2022-04-26 CN CN202220975537.XU patent/CN217431221U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116850724A (en) * | 2023-09-05 | 2023-10-10 | 国能龙源环保有限公司 | Polluted gas filtering equipment and limestone slurry tank |
| CN116850724B (en) * | 2023-09-05 | 2023-12-22 | 国能龙源环保有限公司 | Polluted gas filtering equipment and limestone slurry tank |
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