CN209917462U - Tail gas whitening device - Google Patents
Tail gas whitening device Download PDFInfo
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- CN209917462U CN209917462U CN201920108475.0U CN201920108475U CN209917462U CN 209917462 U CN209917462 U CN 209917462U CN 201920108475 U CN201920108475 U CN 201920108475U CN 209917462 U CN209917462 U CN 209917462U
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Abstract
The utility model relates to environmental protection equipment, in particular to a tail gas whitening device, which comprises a liquid collecting cyclone cylinder and a liquid drop collector, wherein the top of the liquid collecting cyclone cylinder is provided with an air outlet, the bottom of the liquid drop collector is provided with a second air inlet, and the air outlet is connected with the second air inlet in a welding way; the liquid collecting cyclone cylinder comprises a cyclone straight cylinder and a cyclone conical cylinder, an air inlet pipe is arranged on the cyclone straight cylinder, an exhaust pipe and a primary cooling and dedusting nozzle are arranged in the cyclone straight cylinder, the primary cooling and dedusting nozzle is positioned on the inner side of the air inlet pipe, and a liquid discharge pipe is arranged at the bottom of the cyclone conical cylinder; the liquid drop collector comprises a shell, the shell is connected with a negative electrode and is grounded at the same time, a water collector is arranged in the shell and is connected with a positive electrode, a second air outlet pipe is arranged at the top of the shell, a second air inlet is formed in the bottom of the shell, a negative ion emitting piece and a secondary cooling spray pipe are arranged in the second air inlet, and the negative ion emitting piece is positioned above the secondary cooling spray pipe; the utility model discloses a tail gas takes off white device effectively removes the moisture in the slay grinding tail gas, reduces the white cigarette emission of chimney.
Description
Technical Field
The invention relates to environment-friendly equipment, in particular to a tail gas whitening device.
Background
Blast furnace slag is slag produced by an iron-making blast furnace and is a potential hydraulic cementing material. After the slag is ground into fine powder by a mill, the slag can be used as a high-quality cement raw material under the action of excitants such as cement clinker, lime, gypsum and the like. The slag has high water content, and a mill is required to provide enough heat to dry the water during grinding. The dried gas is discharged into the atmosphere after dust removal. The gas contains a certain amount of particles and a large amount of water vapor, and when the temperature of the atmosphere is low, the discharged gas is easy to generate supersaturation after being cooled, water drops are separated out, and then the discharged gas is white, so that the visual pollution is serious. As the national environmental protection problem is increasingly emphasized, the elimination of discharged white water vapor becomes extremely urgent, and the production of fine slag powder is even affected.
Disclosure of Invention
The purpose of the invention is: the tail gas whitening device can effectively remove moisture in slag grinding tail gas and reduce white smoke emission of a chimney.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a tail gas whitening device comprises a liquid collecting cyclone cylinder and a liquid drop collector, wherein an air outlet is formed in the top of the liquid collecting cyclone cylinder, a second air inlet is formed in the bottom of the liquid drop collector, and the air outlet and the second air inlet are connected through welding;
the liquid collecting cyclone cylinder comprises a cyclone straight cylinder and a cyclone conical cylinder, an air inlet pipe is arranged on the cyclone straight cylinder, an exhaust pipe and a primary cooling and dust removing nozzle are arranged in the cyclone straight cylinder, the top of the exhaust pipe extends out of the cyclone straight cylinder, the outer side end of the exhaust pipe is an air outlet, the primary cooling and dust removing nozzle is positioned on the inner side of the air inlet pipe, the outer side end of the air inlet pipe is an air inlet, the bottom of the cyclone conical cylinder is provided with a liquid discharge pipe, and the outer side end of the liquid discharge pipe is a liquid discharge port;
the liquid drop collector includes the casing, the casing has connect negative pole ground connection simultaneously, there is the water collector in the casing, the water collector has connect anodically, there is a tuber pipe two at the top of casing, the outside end that goes out tuber pipe two is the air outlet, the bottom of casing is equipped with air intake two, there are anion emission spare and secondary cooling shower in the air intake two, anion emission spare is located the top of secondary cooling shower, there is the drain pipe the bottom of water collector, the drain pipe stretches out outside the casing, the outside end of drain pipe is the outlet.
Furthermore, the anion emission piece comprises a generator support frame and an anion generator, the generator support frame is arranged in the second air inlet in a penetrating mode, the generator support frame comprises a long rod and a short rod which are of a cross structure, and the anion generator is symmetrically arranged on the long rod and the short rod.
Furthermore, the anion generator is connected with the anion support frame through a connecting rod, the cross rod and the vertical rod are fixed at the middle position of the connecting rod, and the anion generator is uniformly distributed on the connecting rod.
Furthermore, once the cooling dust removal nozzle includes main inlet tube one, there is water inlet one main inlet tube one's one end, be connected with a plurality of inlet tubes one on the main inlet tube one, it has a plurality of atomizing nozzle one to open on the inlet tube one.
Further, the secondary cooling shower includes main inlet tube two, there is water inlet two main inlet tube two's one end, be connected with a branch inlet tube two on the main inlet tube two, the below of main inlet tube two and a branch inlet tube two is opened there are a plurality of atomizing nozzle two.
Further, the top of water collector is fixed on the second air outlet pipe through the water collector fixing piece, the bottom of water collector is connected with the liquid collecting piece, the bottom of liquid collecting piece is connected with the drain pipe, the drain pipe stretches out of the shell, and the water collector fixing piece and the contact surface of the second air outlet pipe are provided with a circle of insulating pieces.
Further, the water collector comprises a plurality of water collector units which are stacked on each other, and the plurality of water collector units are connected through the water collector supporting piece.
Further, the lower edges of the plurality of water collector units increase from top to bottom in sequence.
Further, the liquid collecting member is a conical liquid collecting member.
The technical scheme adopted by the invention has the beneficial effects that:
according to the tail gas whitening device, the liquid collecting cyclone cylinder, the negative ion emitting piece, the primary cooling and dedusting nozzle, the secondary cooling spray pipe and the liquid drop collector are arranged, tail gas containing a small amount of dust and water vapor is subjected to two cooling operations and then is discharged from the air outlet II to enter the atmosphere, the gas is heated by the atmosphere after being mixed with the atmosphere, the mixed gas finally becomes unsaturated gas at the ambient temperature, the water vapor in the gas cannot be separated out, the whitening of the tail gas is further realized, the moisture in slag grinding tail gas is effectively removed, and the white smoke emission of a chimney is reduced.
The lower edges of the water collector units are sequentially enlarged from top to bottom, so that liquid drops from the lower edges of the water collector units can directly fall into the liquid collecting piece and are discharged through the water discharge openings 5-10 when falling, the structural design is more reasonable, and the liquid discharge efficiency is better.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a front view of the present invention.
Fig. 1.1 is a top view of the present invention.
FIG. 1.2 is a view from direction A-A of the present invention.
Fig. 2.1 is a view from direction D-D of the present invention.
FIG. 2.2 is a view from E-E of the present invention.
Fig. 2.3 is a view from direction F to direction F of the present invention.
FIG. 3 is a schematic view of a liquid collection cyclone of the present invention.
FIG. 3.1 is a top view of the liquid collection cyclone of the invention.
FIG. 3.2 is a view from the B-B direction of the liquid collection cyclone of the present invention.
Fig. 4 is a schematic view of the negative ion emitting member of the present invention.
Fig. 4.1 is a top view of the negative ion emitting member of the present invention.
FIG. 5 is a schematic view of a primary cooling and dedusting nozzle of the present invention.
FIG. 6 is a schematic view of a secondary desuperheating shower of the present invention.
FIG. 7 is a schematic view of a droplet collector of the present invention.
Fig. 7.1 is a top view of a drop collector of the invention.
Figure 7.2 is a view from the C-C of the drop collector of the invention.
Fig. 8 is a schematic diagram of the working principle of the present invention.
In the figure: 1 liquid collecting cyclone cylinder, 1-1 air inlet, 1-2 air outlet, 1-3 liquid outlet, 1-4 resistance reducing piece, 1-5 air inlet pipe, 1-6 cyclone straight cylinder, 1-7 cyclone conical cylinder, 1-8 liquid outlet pipe, 1-9 exhaust pipe, 2 anion emitting piece, 2-1 generator supporting frame, 2-2 anion generator, 3 primary cooling and dust removing nozzle, 3-1 water inlet I, 3-2 main water inlet pipe I, 3-3 water inlet pipe I, 3-4 atomizing nozzle I, 4 secondary cooling spray pipe, 4-1 water inlet II, 4-2 main water inlet pipe II, 4-3 atomizing nozzle II, 4-4 water inlet pipe II, 5 liquid drop collector, 5-1 air inlet II, 5-2 liquid collecting piece, 5-3 water collectors, 5-3a water collector units, 5-3b water collector units, 5-3c water collector units, 5-4 water collector supporting pieces, 5-5 air outlet II, 5-6 water collector fixing pieces, 5-7 insulating pieces, 5-8 shells, 5-9 drain pipes, 5-10 drain openings and 5-11 air outlet pipes II.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Please refer to fig. 1-8. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper" and "lower" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial technical changes.
As shown in fig. 1, fig. 1.1, fig. 1.2, fig. 2.1, fig. 2.2, fig. 2.3, fig. 3.1, fig. 3.2, fig. 7.1 and fig. 7.2, a tail gas whitening device comprises a liquid collecting cyclone cylinder 1 and a liquid drop collector, wherein the top of the liquid collecting cyclone cylinder 1 is provided with an air outlet 1-2, the bottom of the liquid drop collector is provided with a second air inlet, and the air outlet 1-2 is connected with the second air inlet through welding; the liquid collecting cyclone cylinder 1 comprises a cyclone straight cylinder 1-6 and a cyclone conical cylinder 1-7, an air inlet pipe 1-5 is arranged on the cyclone straight cylinder 1-6, an exhaust pipe 1-9 and a primary cooling and dedusting nozzle are arranged in the cyclone straight cylinder 1-6, the top of the exhaust pipe 1-9 extends out of the cyclone straight cylinder 1-6, the outer side end of the exhaust pipe 1-9 is an air outlet 1-2, the primary cooling and dedusting nozzle is positioned at the inner side of the air inlet pipe 1-5, the outer side end of the air inlet pipe 1-5 is an air inlet 1-1, the bottom of the cyclone conical cylinder 1-7 is provided with a liquid discharge pipe 1-8, and the outer side end of the liquid discharge pipe 1-8 is a liquid discharge port 1-3; the liquid drop collector comprises a shell, the shell is connected with a negative electrode and is grounded, a water collector is arranged in the shell and is connected with a positive electrode, the top of the shell is provided with a second air outlet pipe 5-11, the outer side end of the second air outlet pipe 5-11 is an air outlet 1-2, the bottom of the shell is provided with a second air inlet, a negative ion emitting part 2 and a secondary cooling spray pipe are arranged in the second air inlet, the negative ion emitting part 2 is positioned above the secondary cooling spray pipe, the bottom of the water collector is provided with a drain pipe, the drain pipe extends out of the shell, and the outer side end of the drain pipe is.
As shown in fig. 8, the working principle is: tail gas containing a small amount of dust and water vapor enters the liquid collecting cyclone cylinder 1 from the air inlet 1-1, when the tail gas passes through the primary cooling and dedusting nozzle 3, atomized water sprayed from the nozzle is mixed with the tail gas, the temperature of the tail gas is reduced, meanwhile, the dust is combined with atomized water drops to form larger dust-containing liquid drops, the cooled tail gas enters the cyclone straight cylinder 1-6 and the cyclone conical cylinder 1-7, the tail gas rotates, liquid drops in the gas move to the cyclone straight cylinder 1-6 and the cyclone conical cylinder 1-7 under the action of centrifugal force, the liquid drops are collected by the cyclone straight cylinder 1-6 and the cyclone conical cylinder 1-7 under the action of side wall effect and move downwards along the cyclone straight cylinder 1-6 and the cyclone conical cylinder 1-7 and are discharged through the liquid discharge port 1-3, the discharged water drops can be collected in a water collecting tank and reach the room temperature through natural cooling, in the process of cooling, the dust-containing particles are settled and collected, and the cooled liquid is sprayed into the air inlet pipes 1-5 through the primary cooling and dedusting nozzle 3 for recycling; the tail gas without liquid drops becomes low-temperature saturated gas, the tail gas rotates upwards from the middle part of a cyclone cone cylinder 1-7 and enters an exhaust pipe 1-9, the rotating motion of the gas is rectified into vertical and upward stable airflow under the action of a resistance reducing piece 1-4, then the stable airflow enters an air inlet II 5-1 through an air outlet 1-2, when the stable airflow passes through the area of a secondary cooling spray pipe 4, the secondary cooling spray pipe 4 sprays ultra-fine water mist with lower temperature, the water mist has small particles and low temperature, the temperature of the entering gas is reduced again under the action of the water mist, the reduced temperature is lower than the external environment temperature, the water vapor in the tail gas is liquefied due to cooling, the water vapor content in the tail gas is reduced, and the number of liquid drops is increased; the gas-liquid mixture after cooling moves upward, and when passing through the negative ion emitting member 2, the ultrafine mist carries negative ions, becomes water droplets with negative charges, and further moves upward. When the water flows through the shell 5-8 and the water collector 5-3, the shell 5-8 is connected with the negative pole and is grounded at the same time, the water collector 5-3 is connected with the positive pole, a stable electric field is formed between the shell 5-8 and the water collector 5-3, water drops with negative charges move towards the water collector 5-3 under the action of the electric field, the water drops are gathered by the water collector 5-3 when moving to the water collector 5-3, the water drops move downwards along the water collector 5-3 when the quantity of the water drops is gathered to a certain degree, the water drops fall into the liquid collecting piece 5-2 and are discharged through the water outlet 5-10, and the discharged water drops can be cooled again through the cooling device due to low temperature and are recycled through the secondary spraying cooling pipe 4. After the recooled gas passes through the water collector 5-3 area, the superfine water mist is collected by the water collector 5-3, the rest gas becomes low-temperature gas saturated with water vapor, the temperature of the gas is lower than that of the external environment, after the gas is discharged from the air outlet two 5-5 and enters the atmosphere, the gas is heated by the atmosphere after being mixed with the atmosphere, the mixed gas finally becomes unsaturated gas at the environment temperature, the water vapor in the gas cannot be separated out, and therefore the tail gas is whitened.
In fig. 8, single arrows indicate gas flow and double arrows indicate liquid droplet flow.
As shown in fig. 4 and 4.1, as a preferred embodiment, the negative ion emitting member in this embodiment includes a generator support frame 2-1 and a negative ion generator 2-2, the generator support frame 2-1 is inserted into the air inlet two 5-1, the generator support frame 2-1 includes a long rod and a short rod in a cross structure, the negative ion generator 2-2 is symmetrically installed on the long rod and the short rod, preferably, the negative ion generator 2-2 is connected with the negative ion support frame through a connecting rod, the cross rod and the vertical rod are fixed at the middle position of the connecting rod, the negative ion generators 2-2 are uniformly distributed on the connecting rod, by adopting the structural design, the contact area of the negative ion generator 2-2 emitting water vapor is larger, the contact area of the negative ions and the water vapor is larger, and the negative ion carrying amount of water drops is increased, causing the water droplets to become negatively charged water droplets.
As shown in fig. 5, as a preferred embodiment, the primary cooling and dust removing nozzle 3 in this embodiment includes a primary water inlet pipe one 3-2, a water inlet one 3-1 is provided at one end of the primary water inlet pipe one 3-2, a plurality of branch water inlet pipes one 3-3 are connected to the primary water inlet pipe one 3-2, a plurality of atomizing nozzles one 3-4 are provided on the branch water inlet pipe one 3-3, by adopting this structure, the water mist particles sprayed out from the primary cooling and dust removing nozzle 3 are ultra-fine and have a lower temperature, when passing through the primary cooling and dust removing nozzle 3, the atomized water sprayed out of the nozzle is mixed with the tail gas, the temperature of the tail gas is reduced, and simultaneously the dust is combined with the atomized water droplets to form larger dust-containing droplets, the cooled tail gas enters the cyclone straight cylinder 1-6 and the cyclone conical cylinder 1-7, the tail gas makes a rotational motion, the droplets in the gas are moved to the cyclone straight cylinder 1-, under the action of the side wall effect, liquid drops are collected by the cyclone straight cylinders 1-6 and the cyclone conical cylinders 1-7, move downwards along the cyclone straight cylinders 1-6 and the cyclone conical cylinders 1-7, and are discharged through the liquid discharge ports 1-3.
As shown in fig. 6, as a preferred embodiment, the secondary cooling spray pipe 4 in this embodiment includes a main water inlet pipe two 4-2, one end of the main water inlet pipe two 4-2 has a water inlet two 4-1, the main water inlet pipe two 4-2 is connected with a branch water inlet pipe two 4-4, a plurality of atomizing nozzles two 4-3 are opened below the main water inlet pipe two 4-2 and the branch water inlet pipe two 4-4, with this structure, the water mist particles sprayed out of the secondary cooling spray pipe 4 are ultra-fine and have a lower temperature, when passing through the area of the secondary cooling spray pipe 4, the ultra-fine water mist with a lower temperature is sprayed out of the secondary cooling spray pipe 4, the water mist particles are small and have a low temperature, the temperature of the entering gas is reduced again under the water mist, the reduced temperature is lower than the external ambient temperature, and the water vapor in the tail gas is liquefied due to the reduction, the water vapor content in the tail gas decreases and the number of droplets increases.
As a preferred embodiment, the top end of the water collector 5-3 in the embodiment is fixed on the air outlet pipe II 5-11 through a water collector fixing part 5-6, the bottom of the water collector 5-3 is connected with a liquid collecting part 5-2, the bottom of the liquid collecting part 5-2 is connected with a drain pipe 5-9, the drain pipe 5-9 extends out of the shell, a circle of insulating parts 5-7 are arranged on the contact surface of the water collector fixing part 5-6 and the air outlet pipe II 5-11, the water collector 5-3 is supported by the water collector fixing part 5-6, the installation and the disassembly are more convenient, and by adopting the structure, the water vapor separation efficiency is improved; the insulation parts 5-7 are structurally designed, and the insulation parts 5-7 are placed between the water collector fixing parts 5-6 and the shell 5-8 to realize the isolation of the water collector fixing parts 5-6 and the shell 5-8, so that the use safety is improved.
As shown in fig. 7.2, as a preferred embodiment, the water collector 5-3 in this embodiment includes a plurality of water collector units stacked on each other, and the plurality of water collector units are connected by the water collector support 5-4, with this structure, the water collector units can be mounted and dismounted more conveniently, and the fixing is more stable.
As shown in fig. 7.2, as a preferred embodiment, the lower edges of the plurality of collector units in this embodiment are sequentially increased from top to bottom, the number of collector units in this embodiment is preferably three, the water drops move downward along the collectors 5-3, the position of the collector unit 5-3c is located at the top, the inner diameter of the lower edge thereof is smallest, the position of the collector unit 5-3b is located in the middle, the inner diameter of the lower edge thereof is between the inner diameters of the collector unit 5-3c and the lower edge of the collector unit 5-3a, the inner diameter of the lower edge of the collector unit 5-3a is largest, so that droplets falling from the lower edges of the collector units 5-3c, 5-3b, 5-3a can fall directly into the 5-2 liquid collector 5-2 and be discharged through the drain port 5-10.
As a preferable embodiment, the liquid collecting member 5-2 in this embodiment is a conical liquid collecting member 5-2, and with this structure, the liquid droplets collected in the liquid collecting member 5-2 can be smoothly discharged without accumulating in the liquid collecting member 5-2.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a tail gas takes off white device which characterized in that: the liquid collector comprises a liquid collecting cyclone cylinder and a liquid drop collector, wherein an air outlet is formed in the top of the liquid collecting cyclone cylinder, a second air inlet is formed in the bottom of the liquid drop collector, and the air outlet and the second air inlet are connected through welding;
the liquid collecting cyclone cylinder comprises a cyclone straight cylinder and a cyclone conical cylinder, an air inlet pipe is arranged on the cyclone straight cylinder, an exhaust pipe and a primary cooling and dust removing nozzle are arranged in the cyclone straight cylinder, the top of the exhaust pipe extends out of the cyclone straight cylinder, the outer side end of the exhaust pipe is an air outlet, the primary cooling and dust removing nozzle is positioned on the inner side of the air inlet pipe, the outer side end of the air inlet pipe is an air inlet, the bottom of the cyclone conical cylinder is provided with a liquid discharge pipe, and the outer side end of the liquid discharge pipe is a liquid discharge port;
the liquid drop collector includes the casing, the casing has connect negative pole ground connection simultaneously, there is the water collector in the casing, the water collector has connect anodically, there is a tuber pipe two at the top of casing, the outside end that goes out tuber pipe two is the air outlet, the bottom of casing is equipped with air intake two, there are anion emission spare and secondary cooling shower in the air intake two, anion emission spare is located the top of secondary cooling shower, there is the drain pipe the bottom of water collector, the drain pipe stretches out outside the casing, the outside end of drain pipe is the outlet.
2. The tail gas whitening apparatus according to claim 1, characterized in that: the anion emission piece comprises a generator support frame and an anion generator, the generator support frame is arranged in the second air inlet in a penetrating mode, the generator support frame comprises a long rod and a short rod which are of a cross structure, and the anion generator is symmetrically arranged on the long rod and the short rod.
3. The tail gas whitening apparatus according to claim 2, characterized in that: the anion generator is connected with the anion support frame through a connecting rod, the long rod and the short rod are fixed in the middle of the connecting rod, and the anion generator is uniformly distributed on the connecting rod.
4. The tail gas whitening apparatus according to claim 1, characterized in that: the primary cooling and dedusting nozzle comprises a first main inlet pipe, a first water inlet is formed in one end of the first main inlet pipe, a plurality of first branch inlet pipes are connected to the first main inlet pipe, and a plurality of first atomizing nozzles are arranged on the first branch inlet pipes.
5. The tail gas whitening apparatus according to claim 1, characterized in that: the secondary cooling shower includes main inlet tube two, the one end of main inlet tube two has water inlet two, be connected with a main inlet tube two on the main inlet tube two, the below of main inlet tube two and a branch inlet tube two is opened there are a plurality of atomizing nozzle two.
6. The tail gas whitening apparatus according to claim 1, characterized in that: the top of water collector is fixed on the second air outlet pipe through the water collector fixing piece, the bottom of water collector is connected with the liquid collecting piece, the bottom of liquid collecting piece is connected with the drain pipe, the drain pipe stretches out outside the casing, there is the round insulating part on the contact surface of water collector fixing piece and air outlet pipe two.
7. The tail gas whitening apparatus according to claim 6, characterized in that: the water collector comprises a plurality of water collector units which are stacked mutually, and the water collector units are connected through a water collector supporting piece.
8. The tail gas whitening apparatus according to claim 7, characterized in that: the lower edges of the plurality of water collector units are sequentially increased from top to bottom.
9. The tail gas whitening apparatus according to claim 6, characterized in that: the liquid collecting member is a conical liquid collecting member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108475.0U CN209917462U (en) | 2019-01-23 | 2019-01-23 | Tail gas whitening device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108475.0U CN209917462U (en) | 2019-01-23 | 2019-01-23 | Tail gas whitening device |
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| CN209917462U true CN209917462U (en) | 2020-01-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109718607A (en) * | 2019-01-23 | 2019-05-07 | 南京西普水泥工程集团有限公司 | A kind of tail gas takes off white device |
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2019
- 2019-01-23 CN CN201920108475.0U patent/CN209917462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109718607A (en) * | 2019-01-23 | 2019-05-07 | 南京西普水泥工程集团有限公司 | A kind of tail gas takes off white device |
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