CN215901171U - Cement kiln tail gas cleanup unit - Google Patents
Cement kiln tail gas cleanup unit Download PDFInfo
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- CN215901171U CN215901171U CN202121479341.3U CN202121479341U CN215901171U CN 215901171 U CN215901171 U CN 215901171U CN 202121479341 U CN202121479341 U CN 202121479341U CN 215901171 U CN215901171 U CN 215901171U
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- 239000004568 cement Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 121
- 239000007921 spray Substances 0.000 claims abstract description 49
- 238000005507 spraying Methods 0.000 claims abstract description 41
- 238000000746 purification Methods 0.000 claims abstract description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 6
- 241001330002 Bambuseae Species 0.000 claims abstract description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 6
- 239000011425 bamboo Substances 0.000 claims abstract description 6
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000012791 sliding layer Substances 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 51
- 239000002689 soil Substances 0.000 abstract description 10
- 238000005067 remediation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 58
- 239000000203 mixture Substances 0.000 description 12
- 239000003595 mist Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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Abstract
The utility model relates to the field of contaminated soil remediation, and discloses a cement kiln tail gas purification device which comprises a gas inlet pipe and a spraying cavity, wherein the gas inlet pipe is communicated with the spraying cavity; both sides of the spraying cavity are provided with spraying pipes, one end of each spraying pipe, far away from the air inlet pipe, is fixedly connected with a water pump, and the part of each spraying pipe in the spraying cavity is provided with a plurality of nozzles; one side that sprays the chamber is provided with the water cavity, and the intercommunication has the moisturizing pipe on the water cavity, sprays to be connected with many outlet ducts between chamber and the water cavity, and the one end of every outlet duct all with spray the chamber and be linked together, the other end is placed inside the water cavity, and the lower extreme fixedly connected with in water cavity deposits a section of thick bamboo, deposits and installs the second valve on the section of thick bamboo. The utility model is used for solving the problems that in the prior art, the water vapor formed by combining the high-temperature dust-containing tail gas and the spray can adsorb part of harmful dust in the dust-containing tail gas, and the environment can be polluted if the water vapor with the dust is directly discharged.
Description
Technical Field
The utility model belongs to the technical field of contaminated soil remediation, and particularly relates to a cement kiln tail gas purification device.
Background
In recent years, many industrial enterprises are closed or moved, a lot of fields polluted by soil are left, the fields can be reused after the polluted soil is treated, and the soil pollutants easily enter human bodies through dust floating, skin contact, mistaking and absorbing of volatilization of gas pollutants and the like to cause human health risks, so people adopt a cement kiln to treat the polluted soil in a synergic mode, burn and cure the polluted soil while producing cement clinker, organic pollutants in the polluted soil are converted into inorganic compounds under the high-temperature condition of the cement kiln, acidic substances in the soil react with alkaline substances (calcium oxide, calcium carbonate and the like) in the cement kiln to generate a large amount of carbon dioxide and water vapor, and the soil is fixed in the cement clinker to finally become a cement product. And can produce a large amount of dirty tail gas in cement production process itself, pollute soil and also can produce a large amount of carbon dioxide and vapor in the course of handling, the two mixes the dirty tail gas that can form a large amount of high temperature high concentration, if the dirty tail gas of direct discharge can produce very big harm to environment and human body, so need remove dust to the dirty tail gas of cement kiln output, discharge after the purification again.
Patent application No. CN202020295841.0 discloses a cement kiln tail gas cleanup unit, utilizes the nozzle at purification chamber top to spray water smoke, combines with the dust in the dusty tail gas and forms the mixture of mud form, recycles the filter and filters, but the device still has the problem: in the purification cavity, the high-temperature dust-containing tail gas is contacted with the spray to generate a large amount of water vapor, the water vapor can adsorb harmful dust in part of the dust-containing tail gas, the flowing of the water vapor can drive the part of the adsorbed dust to be discharged, and if the water vapor is directly discharged, the problem of environmental pollution still exists; and only the top of the purification cavity is provided with the nozzle, which can cause that the gas flowing into the nozzle cannot be cleaned; the mud mixture formed by the dust in the dust-containing tail gas and the water mist is easy to stick to the inner wall of the purification cavity, and the use of the device is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cement kiln tail gas purification device, which is used for solving the problems that in the prior art, water vapor formed by combining high-temperature dust-containing tail gas and spray can adsorb part of harmful dust in the dust-containing tail gas, and if the water vapor is directly discharged, the environment is polluted.
In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:
a tail gas purification device of a cement kiln comprises a gas inlet pipe and a spraying cavity, wherein the gas inlet pipe is communicated with the spraying cavity, the lower end of the spraying cavity is fixedly connected with a funnel-shaped collecting cylinder, and one end of the collecting cylinder, which is far away from the spraying cavity, is provided with a first valve; spray pipes are arranged on two sides of the spray cavity, one end of each spray pipe, which is far away from the air inlet pipe, is fixedly connected with a water pump, each spray pipe penetrates through the spray cavity and is communicated with a water outlet of the water pump, and a plurality of nozzles are arranged on the part of each spray pipe in the spray cavity; one side that sprays the chamber is provided with the water cavity, and the intercommunication has the moisturizing pipe on the water cavity, sprays to be connected with many outlet ducts between chamber and the water cavity, and the one end of every outlet duct all with spray the chamber and be linked together, and the other end is placed inside the water cavity, the lower extreme fixedly connected with infundibulate of water cavity deposits a section of thick bamboo, and the one end that the water cavity was kept away from to a section of thick bamboo installs the second valve.
Further, the plurality of nozzles are arranged on the spray pipe in two rows, each row of nozzles are arranged on the spray pipe at equal intervals, and the angle between each pair of nozzles in the two rows of nozzles is 90 degrees. This setting can be so that shower nozzle spun water smoke can spray to each department that sprays the chamber, because the crossing place of two rows of nozzles blowout sprays is the place that the dusty tail gas that the intake pipe came in is the most, and the contained angle between two rows of nozzles is 90 degrees, can make two rows of nozzles blowout sprays crossing place have the twice spraying, and the spraying can fully combine with dusty tail gas, can increase dusty tail gas's purification efficiency.
Further, the filter is installed to the one end that the sedimentation section of thick bamboo was kept away from in the water cavity, installs the active carbon layer on the filter. Through this setting, when the gas after water cavity treatment upwards flows, utilize the active carbon layer can filter harmful gas in the gas, like sulfur dioxide etc..
Further, install the motor on the filter, motor fixedly connected with axis of rotation, the axis of rotation passes the filter and enters into the water intracavity portion, and the one end that the motor was kept away from to the axis of rotation is provided with the stirring piece. The rotating shaft is driven to rotate by the motor, so that the stirring sheet rotates, bubbles formed by combination of high-temperature water vapor and water in the water cavity can be broken through the rotation of the stirring sheet, and the flowing of gas in the dust-containing tail gas can be accelerated.
Further, the inner wall of the collecting cylinder is provided with a sliding layer. The mud form mixture that can form after dust in the dusty tail gas combines with the spraying, such setting can make mud form mixture drop when the inner wall of collecting vessel, can flow out along the sliding layer on collecting vessel inner wall surface, and mud form mixture can not glue the inner wall of sticking at the collecting vessel.
Furthermore, a water inlet pipe is communicated with the water cavity, and one end of the water inlet pipe, which is positioned outside the water cavity, is communicated with a water inlet of the water pump. Can make the rivers of water intracavity portion to the inlet tube through this setting, press to the shower through the water pump for the shower utilizes the water in the water cavity to form the spraying, and the spraying combines with high temperature dusty tail gas and can form a large amount of vapor, finally combines with the water of water intracavity portion to form water, thereby makes the water resource circulated use of this device, saves the resource.
Adopt above-mentioned technical scheme's utility model, have following advantage:
the spraying cavity and the water cavity which are communicated are arranged, so that the dust-containing tail gas can be treated twice, the dust in the dust-containing tail gas can be completely treated, and harmful dust adsorbed by water vapor formed by combining high-temperature dust-containing tail gas and spraying can be treated and then discharged. When the high-temperature dust-containing tail gas flows to the spraying cavity from the air inlet pipe, the spray sprayed by the nozzles in the spraying cavity is combined with the dust in the dust-containing tail gas to form a mud-shaped mixture, and the mud-shaped mixture flows to the collecting cylinder along the sliding layer because the sliding layer is arranged on the surface of the funnel-shaped collecting cylinder; and high temperature dust-containing tail gas when spraying the chamber, high temperature dust-containing tail gas produces a large amount of vapor with the spraying contact, and the dust in the partial dust-containing tail gas of vapor adsorption, vapor drive this part by the inside of adsorbed dust from the outlet duct inflow water cavity, utilize the water in the water cavity, both can so that vapor and the inside water phase in water cavity combine, convert into water, also can utilize the water in the water cavity with the adsorbed dust clean up in the vapor.
Drawings
The utility model is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of a cement kiln tail gas purification device in a top view direction according to the present invention;
FIG. 2 is a schematic structural view of the cross-section of FIG. 1;
FIG. 3 is a schematic structural view of the shower and nozzle of FIG. 2;
the main element symbols are as follows:
the device comprises an air inlet pipe 1, a spraying cavity 2, a spraying pipe 3, a nozzle 31, a water pump 32, an inlet pipe 33, a collecting cylinder 4, a sliding layer 41, a first valve 42, an air outlet pipe 5, a water cavity 6, a filter plate 61, an activated carbon layer 62, a motor 63, a rotating shaft 64, a stirring sheet 65, a water replenishing pipe 66, a settling cylinder 7 and a second valve 71.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 3, the cement kiln tail gas purification device comprises a gas inlet pipe 1 and a spraying cavity 2, wherein the gas inlet pipe 1 is arranged on the left side of the spraying cavity 2, the gas inlet pipe 1 is communicated with the spraying cavity 2, the lower end of the spraying cavity 2 is fixedly connected with a funnel-shaped collecting cylinder 4, the inner wall of the collecting cylinder 4 is provided with a sliding layer 41, the sliding layer 41 is specifically a ceramic layer, and the lower end of the collecting cylinder 4 is provided with a first valve 42. Spray pipes 3 are mounted on two sides of the spray cavity 2, the left ends of the two spray pipes 3 penetrate out of the spray cavity 2 and are communicated with a water outlet of a water pump 32, two rows of nozzles 31 are mounted on the part, in the spray cavity 2, of each spray pipe 3, the nozzles 31 in each row are equidistantly arranged on the spray pipes 3, the angle between each pair of nozzles 31 in the two rows of nozzles 31 is 90 degrees, the part, on which only the nozzle 31 is mounted, of each spray pipe 3 is mounted inside the spray cavity 2, and the whole spray cavity 2 can be sprayed with mist.
The right side in chamber 2 that sprays is provided with water cavity 6, and the upper right side in water cavity 6 is installed the moisturizing pipe 66 with water cavity 6 intercommunication, and moisturizing pipe 66 can be connected with the water source, and the flow of moisturizing pipe 66 normal water is the same with the flow in two shower 3, can make the surface of water height in the water cavity 6 remain on a water flat line all the time like this. 2 air outlet pipes 5 are connected between the spraying cavity 2 and the water cavity 6, the left end of each air outlet pipe 5 is communicated with the spraying cavity 2, and the other end of each air outlet pipe is placed in the water cavity 6; the left end of the water cavity 6 is communicated with a water inlet pipe 33, and the left end of the water inlet pipe 33 is communicated with a water inlet of the water pump 32; the top of the water chamber 6 is provided with a filter plate 61, the filter plate 61 is provided with an activated carbon layer 62, the filter plate 61 is provided with a motor 63, the motor 63 is fixedly connected with a rotating shaft 64, the rotating shaft 64 penetrates through the filter plate 61 and enters the water chamber 6, and the lower end of the rotating shaft 64 is provided with a stirring sheet 65; the lower end of the water cavity 6 is fixedly connected with a funnel-shaped sedimentation cylinder 7 communicated with the water cavity, and the lower end of the sedimentation cylinder 7 is provided with a second valve 71.
The using method of the utility model is as follows:
high-temperature dust-containing tail gas generated by a cement kiln is connected into an air inlet pipe 1, the high-temperature dust-containing tail gas flows into a spraying cavity 2 along the air inlet pipe 1, a water pump 32 and a motor 63 are simultaneously turned on, the water pump 32 is turned on to press water into a spraying pipe 31 from a water cavity 6 through a water inlet pipe 33, so that a nozzle 13 sprays the mist, the mist can be combined with dust in the dust-containing tail gas to form a muddy mixture, the high-temperature dust-containing tail gas can be contacted with the high-temperature dust-containing tail gas to generate a large amount of water vapor, the internal humidity of the whole spraying cavity 2 is enhanced, the dust is combined with the dust more sufficiently, the dust and the mist are combined to form the muddy mixture, the muddy mixture flows to the bottom of a collecting cylinder 14 along a sliding layer 41 of the collecting cylinder 4, in order to keep the pressure in the spraying cavity 2, the water vapor with the dust and the treated dust-containing tail gas can flow out from an air outlet pipe 5, and the muddy mixture is discharged by intermittently turning on a first valve 42 of the collecting cylinder 4 in the using process, but can not discharge all the mud mixture, thereby preventing the gas in the spraying cavity 2 from overflowing and polluting the environment.
As the high-temperature dust-containing tail gas is contacted with the spray to generate a large amount of water vapor, the water vapor can adsorb harmful dust in part of the dust-containing tail gas, because the dust-containing tail gas continuously enters and the water vapor is generated, the pressure in the spraying cavity 2 is increased more and more, so that the vapor with the harmful dust and the cleaned tail gas containing dust can enter the water cavity 6 along the air outlet pipe 5, because the air outlet pipe 5 is placed in the water cavity 6, the water vapor adsorbed with the harmful dust can be directly combined with the water in the water cavity 6 after entering the water cavity 6 from the air outlet pipe 5, and the gas which can not be combined with the water flows upwards, because the high-temperature steam is combined with water to easily generate bubbles, the motor 63 is turned on to drive the rotating shaft 64 to rotate, thereby, the stirring sheet 65 is rotated, and the rotation of the stirring sheet 65 can break the bubbles formed by the combination of the high-temperature water vapor and the water in the water cavity 6, and the gas discharge can be accelerated. The gas after dust removal treatment flows upwards and through the activated carbon layer 62 at the top of the water chamber 6, so that some harmful gases, such as sulfur dioxide, can be filtered. The sedimentation cylinder 7 arranged at the bottom of the water cavity 6 can be used for collecting sediments, after the sedimentation cylinder is used and placed for a period of time, the second valve 71 at the lower end of the sedimentation cylinder 7 can be opened, and the sediments are discharged, so that the device can be recycled.
The cement kiln tail gas purification device provided by the utility model is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the utility model and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a cement kiln tail gas cleanup unit which characterized in that: the spraying device comprises an air inlet pipe and a spraying cavity, wherein the air inlet pipe is communicated with the spraying cavity, the lower end of the spraying cavity is fixedly connected with a funnel-shaped collecting cylinder, and one end of the collecting cylinder, which is far away from the spraying cavity, is provided with a first valve; spray pipes are arranged on two sides of the spray cavity, one end of each spray pipe, which is far away from the air inlet pipe, is fixedly connected with a water pump, each spray pipe penetrates through the spray cavity and is communicated with a water outlet of the water pump, and a plurality of nozzles are arranged on the part, in the spray cavity, of each spray pipe; one side that sprays the chamber is provided with the water cavity, the intercommunication has the moisturizing pipe on the water cavity, it is connected with many outlet ducts to spray between chamber and the water cavity, every the one end of outlet duct all with spray the chamber and be linked together, the other end is placed inside the water cavity, the lower extreme fixedly connected with infundibulate of sedimentation cylinder of water cavity, the sedimentation cylinder is kept away from the one end in water cavity and is installed the second valve.
2. The cement kiln exhaust gas purification device according to claim 1, characterized in that: the plurality of nozzles are divided into two rows and arranged on the spray pipe, each row of nozzles are arranged on the spray pipe at equal intervals, and the angle between each pair of nozzles in the two rows of nozzles is 90 degrees.
3. The cement kiln exhaust gas purification device according to claim 2, characterized in that: the water cavity is kept away from the one end of deposiing a section of thick bamboo and is installed the filter, install the active carbon layer on the filter.
4. The cement kiln exhaust gas purification device according to claim 3, characterized in that: install the motor on the filter, motor fixedly connected with axis of rotation, the axis of rotation passes the filter and enters into the water intracavity portion, the one end that the motor was kept away from to the axis of rotation is provided with the stirring piece.
5. The cement kiln exhaust gas purification device according to claim 4, characterized in that: and a sliding layer is arranged on the inner wall of the collecting cylinder.
6. The cement kiln exhaust gas purification device according to claim 5, characterized in that: the water cavity is communicated with a water inlet pipe, and one end of the water inlet pipe, which is positioned outside the water cavity, is communicated with a water inlet of the water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479341.3U CN215901171U (en) | 2021-06-30 | 2021-06-30 | Cement kiln tail gas cleanup unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479341.3U CN215901171U (en) | 2021-06-30 | 2021-06-30 | Cement kiln tail gas cleanup unit |
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| CN215901171U true CN215901171U (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121479341.3U Active CN215901171U (en) | 2021-06-30 | 2021-06-30 | Cement kiln tail gas cleanup unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118416685A (en) * | 2024-05-13 | 2024-08-02 | 原初科技（北京）有限公司 | Fixing CO in gas2Systems and methods of (1) |
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2021
- 2021-06-30 CN CN202121479341.3U patent/CN215901171U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118416685A (en) * | 2024-05-13 | 2024-08-02 | 原初科技（北京）有限公司 | Fixing CO in gas2Systems and methods of (1) |
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