CN110975497B - Method for eliminating white matter of blast furnace slag bottom filtering system - Google Patents
Method for eliminating white matter of blast furnace slag bottom filtering system Download PDFInfo
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
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- C21B3/06—Treatment of liquid slag
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention discloses a method for eliminating white slag of a blast furnace slag bottom filtering system, which comprises the following steps: step 1: the high-temperature molten slag meets the granulated water to generate a slag-water mixture and sulfur-containing steam; step 2: spraying water sprayed by the condensation spraying device (4) to spray the sulfur-containing steam, wherein most of the sulfur-containing steam is condensed water under the action of the spraying water; and step 3: the rest part of the sulfur-containing steam enters a filter pipe (8) of the blank removing pool (6); and 4, step 4: the remaining part of the sulfur-containing vapor is discharged from the filter pipe (8) and enters the filter layer (7) of the blank pool (6) upwards. In the steam whitening process, a small part of steam which is not condensed by the condensing and spraying device is led to the bottom of the whitening pool, so that not only is thorough steam whitening treatment realized, but also the filter material is backwashed by using the steam firstly and then by using water, so that the backwashing efficiency of the filter material can be improved, the activity of the filter material is improved, and the problems of easy hardening and short service life of the filter material are avoided.
Description
Technical Field
The invention relates to the technical field of metal smelting, in particular to a whitening method for a bottom filter system of blast furnace slag.
Background
High-temperature liquid slag (1350 ℃ -1500 ℃) is generated during blast furnace smelting, 7 hundred million tons of molten iron are produced in China every year, and 2.5 million tons of high-temperature liquid slag are generated. The slag is usually granulated at home and abroad by a precipitation filtration method (often called bottom filtration method) and a granulating process. The method comprises the steps of carrying out hydraulic slag flushing in front of a blast furnace, crushing slag by water quenching to obtain a slag-water mixture (often called water slag), enabling water slag to enter a filter tank through a slag flushing channel, filtering liquid water by a filter layer in the filter tank for recycling, leaving solid slag particles in the filter tank, and then grabbing, loading and transporting the slag particles by a bridge type grab crane.
The granulated slag process can generate a large amount of sulfur-containing steam (about 60-100 ℃) in the process of granulating the molten slag, the granulated slag steam has corrosiveness, the surrounding environment is polluted in the emission process, surrounding equipment is corroded, and meanwhile, the emitted steam can also corrode the blast furnace equipment to a certain extent due to the fact that the distance between the filter tank and the blast furnace is very close.
With the increasing environmental protection situation in China, the demand of iron and steel enterprises for the steam whitening technology of the water granulated slag process is more and more strong. Related research has been carried out for many years at home and abroad, and slag flushing steam is hopefully eliminated to realize steam whitening. For example, chinese patent CN 107815514 a, published as 2018, 3 and 20, discloses an apparatus and a method for recovering slag flushing water vapor and eliminating white fog, which first adopts a spray cooling mode to realize vapor recovery, and then utilizes hot blast furnace flue gas to heat steam to prevent white smoke generation. The method can effectively reduce partial steam emission, and the generation of white smoke can be prevented by utilizing the temperature-rising steam of the flue gas of the hot blast stove, but partial steam is finally discharged into the atmosphere, namely, the real and thorough white elimination can not be realized.
Disclosure of Invention
In order to realize real and thorough whitening, the invention provides a whitening method for a blast furnace slag bottom filtering system, which fully utilizes a filter material in a bottom filtering process, and leads a small part of steam which is not condensed by a condensing spraying device to the bottom of a whitening pool in the steam whitening process, thereby not only realizing thorough steam whitening treatment, but also firstly carrying out back washing on the filter material by steam and then carrying out back washing on the filter material by water, improving the back washing efficiency of the filter material, improving the activity of the filter material, and avoiding the problems of easy hardening and short service life of the filter material.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for eliminating white slag of a blast furnace slag bottom filtering system comprises the following steps:
step 1: the high-temperature molten slag meets the granulated water to generate a slag-water mixture and sulfur-containing steam;
step 2: spraying spray water sprayed by the condensation spray device to spray the sulfur-containing steam, wherein most of the sulfur-containing steam is condensed water under the action of the spray water;
and step 3: the rest part of the sulfur-containing steam enters a filter pipe of a white eliminating pool;
and 4, step 4: the remaining portion of the sulfur-containing vapor exits the filter tubes and passes upwardly into the filter bed of the blank space.
The method for eliminating the white slag of the blast furnace slag bottom filtering system adopts blast furnace slag bottom filtering method white slag eliminating equipment, the blast furnace slag bottom filtering method white slag eliminating equipment comprises a granulating white slag eliminating tower and a white slag eliminating pool, a blast furnace slag inlet and a granulator are arranged at the lower part of the granulating white slag eliminating tower, the condensing and spraying device is arranged in the granulating white slag eliminating tower, a steam outlet is arranged at the upper part of the granulating white slag eliminating tower, a filter layer and a filter pipe are arranged in the white slag eliminating pool, the steam outlet is connected with the filter pipe through a steam conveying pipeline, and the white slag eliminating pool contains deposition water.
In step 1, the high-temperature molten slag is discharged from a blast furnace molten slag inlet of a granulating and whitening tower, the granulating water is discharged from a granulator of the granulating and whitening tower, the high-temperature molten slag and the granulating water meet in the granulating and whitening tower, the temperature of the high-temperature molten slag is 1350-1500 ℃, the temperature of the granulating water is 40-45 ℃, and the temperature of the sulfur-containing steam is 80-100 ℃.
The granulating and whitening tower is also internally provided with a spray water collecting hopper, a steam outlet, a condensation spraying device, the spray water collecting hopper, a blast furnace slag inlet and a granulator are sequentially arranged from top to bottom, and the condensation spraying device comprises at least one layer of high-pressure atomizing nozzles.
The side wall of the granulating and water-reducing tower is provided with a spray water inlet and a collected water outlet, spray water can be supplied to the condensation spraying device through the spray water inlet, and water collected by the spray water collecting hopper can be discharged through the collected water outlet.
In the step 2, the temperature of spray water sprayed by the condensation spraying device is 40-45 ℃, and the condensed water and the spray water fall into a spray water collecting hopper.
And a steam fan is arranged on the steam conveying pipeline, and in the step 3, the steam fan can enable the rest part of the sulfur-containing steam to enter a filter pipe of the white eliminating pool.
The filter pipe is positioned in the filter layer or below the filter layer, and in step 4, the rest part of the sulfur-containing steam enters the filter layer of the bleaching tank and contacts with the filter material of the filter layer.
The filter layer contains a filter material with the particle size gradually increasing from top to bottom.
The upper end surface of the whitening pool is higher than the upper surface of the filter layer, and the liquid level of the sedimentation water in the whitening pool is higher than the upper surface of the filter layer.
The invention has the beneficial effects that:
1. the invention can fully utilize the condensing spray device and the filter material in the bottom filtering process to realize thorough steam white elimination treatment.
2. The invention can realize the complete recovery of the steam in the slag flushing and granulating process and realize the recycling of water resources.
3. The invention can improve the back washing efficiency of the filter material, improve the activity of the filter material and avoid the problems of easy hardening and short service life of the filter material.
4. The invention is not only suitable for the new construction project of the blast furnace, but also suitable for the environmental protection reconstruction of the existing blast furnace water slag system.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic structural diagram of a blast furnace slag bottom filtration process white elimination device.
Fig. 2 is a sectional view taken along a-a in fig. 1.
Fig. 3 is a schematic view of a granulated absorption tower at the location of a spray water collection hopper.
FIG. 4 is a top view of the outer bucket body and water collection pipe.
Fig. 5 is a sectional view taken along the direction B-B in fig. 4.
1. A granulator; 2. granulating and eliminating the white tower; 3. a spray water collecting hopper; 4. a condensation spraying device; 5. a steam fan; 6. a white water removal pool; 7. a filter layer; 8. a filter tube; 9. a blast furnace slag inlet; 10. a steam outlet; 11. a vapor delivery line; 12. a spray water inlet; 13. a collected water outlet;
31. an inner barrel bucket; 32. an outer barrel bucket; 33. a water collection pipeline; 34. an outer bucket body; 35. an inner baffle ring; 36. a drain through hole; 37. an annular water collection tank; 38. condensed water and spray water; 39. a sulfur-containing vapor.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A method for eliminating white slag of a blast furnace slag bottom filtering system comprises the following steps:
step 1: the high-temperature molten slag meets the granulated water to generate a slag-water mixture and sulfur-containing steam;
step 2: spraying spray water sprayed by the condensation spray device 4 to spray the sulfur-containing steam, wherein most (calculated by volume to be about 75-95%) of the sulfur-containing steam becomes condensed water under the action of the spray water;
and step 3: the rest part of the sulfur-containing steam (namely 25 to 5 percent of the volume of the sulfur-containing steam without forming condensed water) enters a filtering pipe 8 of the blank removing pond 6;
and 4, step 4: the remainder of the sulfur-containing vapor exits the filter tubes 8 and passes upwardly into the filter layer 7 of the blank space 6.
The method for eliminating the white slag of the blast furnace slag bottom filtration system adopts a blast furnace slag bottom filtration method white slag elimination device, the blast furnace slag bottom filtration method white slag elimination device comprises a granulating white slag elimination tower 2 and a white slag elimination pool 6, the lower part of the granulating white slag elimination tower 2 is provided with a blast furnace slag inlet 9 and a granulator 1, a condensation spray device 4 is arranged in the granulating white slag elimination tower 2, the upper part of the granulating white slag elimination tower 2 is provided with a steam outlet 10, the white slag elimination pool 6 is internally provided with a filter layer 7 and a filter pipe 8, the steam outlet 10 is connected with the filter pipe 8 through a steam conveying pipeline 11, and the white slag elimination pool 6 contains deposition water as shown in figure 1.
The steam outlet 10 is connected with the filter pipe 8 through a steam conveying pipeline 11, and the residual sulfur-containing steam which is not condensed is discharged from the steam outlet 10 and then enters the filter pipe 8 through the steam conveying pipeline 11, namely, a small part of steam which is not condensed by the condensation spraying device is guided into the bottom of the bleaching tank. Therefore, not only is the thorough steam whitening treatment realized, but also the backwashing on the filter material is carried out by using the steam firstly and then the backwashing on the filter material is carried out by using the water, so that the backwashing efficiency on the filter material can be improved, the activity of the filter material is improved, and the problems of easy hardening and short service life of the filter material are avoided.
In this embodiment, the blast furnace slag inlet 9 is provided vertically corresponding to the granulator 1, and the condensation shower device 4 is provided between the blast furnace slag inlet 9 and the steam outlet 10. The granulating and whitening tower 2 is also internally provided with a spray water collecting hopper 3, the spray water collecting hopper 3 is positioned between the condensation spray device 4 and the blast furnace slag inlet 9, and the steam outlet 10, the condensation spray device 4, the spray water collecting hopper 3, the blast furnace slag inlet 9 and the granulator 1 are sequentially arranged from top to bottom.
The spray water collecting bucket 3 can be a product in the prior art, or in the invention, the spray water collecting bucket 3 comprises an inner barrel bucket 31, an outer barrel bucket 32 and a water collecting pipeline 33, the inner barrel bucket 31 is sleeved in the outer barrel bucket 32, and an annular channel is formed between the inner barrel bucket 31 and the outer barrel bucket 32. The axial line of the inner barrel bucket 31, the axial line of the outer barrel bucket 32 and the axial line of the granulating and whitening tower 2 are coincident. Interior barrel fill 31 is the circular cone tubular structure of top end down bottom end up, and outer barrel fill 32 contains outer bucket body 34 and interior fender ring 35, and in the lower extreme of outer bucket body 34 was located to interior fender ring 35 cover, the axis of interior fender ring 35 and the coincidence of the axis of outer bucket body 34, outer bucket body 34 is the circular cone tubular structure of top end bottom end up down, through annular connecting plate sealing connection between the lower extreme of outer bucket body 34 and the lower extreme of interior fender ring 35, forms annular water catch bowl 37 between outer bucket body 34 and the interior fender ring 35.
The upper end of the inner bucket 31 is higher than the upper end of the outer bucket 32, and the lower end of the inner bucket 31 is flush with the lower end of the outer bucket 32. The upper and lower both ends of inner barrel fill 31 are open state, and the upper and lower both ends of outer bucket body 34 are open state, and collection water pipe way 33 is horizontal state, and the lower extreme that inner barrel was fought 31 and the lower extreme that outer barrel was fought 32 all are connected with collection water pipe way 33, and the inside of inner barrel fill 31 and the inside intercommunication of collecting water pipe way 33, be equipped with drainage through hole 36 in the annular connecting plate, annular water catch bowl 37 passes through drainage through hole 36 and the inside intercommunication of collecting water pipe way 33.
The outer diameter of the upper end of the inner barrel bucket 31 is smaller than the inner diameter of the granulating and whitening tower 2, the outer diameter of the lower end of the inner barrel bucket 31 is smaller than the inner diameter of the inner baffle ring 35, the outer diameter of the upper end of the outer bucket body 34 is equal to the inner diameter of the granulating and whitening tower 2, and the lower end of the outer bucket body 34 is flush with the lower end of the inner baffle ring 35, namely the lower end of the inner barrel bucket 31, the lower end of the outer bucket body 34 and the lower end of the inner baffle ring 35 are flush. One end of the water collecting pipeline 33 is positioned outside the granulating and whitening tower 2, the outer diameter of the water collecting pipeline 33 is smaller than the inner diameter of the inner baffle ring 35, and one end of the water collecting pipeline 33 is a water collecting outlet 13, as shown in fig. 1 to 5.
When in use, the sulfur-containing steam 39 moves upwards to pass through the lower end of the inner baffle ring 35, the annular channel and the annular space between the upper end of the inner barrel bucket 31 and the inner surface of the granulating and whitening tower 2 in sequence, and most of the sulfur-containing steam becomes condensed water under the action of atomized spray water. The condensed water and a part of the shower water 38 fall into the lower end of the inner bucket 31, and then enter the collecting water pipe 33 to be discharged. The condensed water and another part of the shower water 38 fall into an annular water collecting tank 37 at the lower end of the outer bucket 32, and then enter a water collecting pipe 33 to be discharged.
In the embodiment, the side wall of the granulation and white reduction tower 2 is provided with a spray water inlet 12 and a collected water outlet 13, the spray water inlet 12 is connected with the condensation spray device 4, and spray water can be supplied to the condensation spray device 4 through the spray water inlet 12. The position of the collected water outlet 13 corresponds to the position of the spray water collecting hopper 3, and the water collected by the spray water collecting hopper 3 can be discharged out of the granulating and whitening tower 2 through the collected water outlet 13. The lower part of the granulating and whiting tower 2 is also provided with a slag flushing water inlet and a grain slag outlet.
In this embodiment, the condensation spraying device 4 comprises at least one layer of high-pressure atomizing nozzles, and the condensation spraying device 4 can spray cold water to condense high-temperature sulfur-containing vapor to form condensed water, which will be collected in the collecting area of the spray water collecting hopper 3. The steam outlet 10 is positioned at the top of the granulating and whitening tower 2, the steam conveying pipeline 11 is provided with a steam fan 5, and the steam fan 5 is used for leading residual sulfur-containing steam discharged from the steam outlet 10 to enter the filter pipe 8 through the steam conveying pipeline 11.
In this embodiment, the wall of the filtering pipe 8 has a plurality of filtering through holes, and the residual sulfur-containing vapor can enter the filtering layer 7 upward after entering the filtering pipe 8 through the filtering through holes, as shown in fig. 2. The structure of the whitening tank 6 is basically the same as that of the existing filtering tank, the filtering pipe 8 is positioned in the filtering layer 7 or below the filtering layer 7, preferably, the filtering pipe 8 is positioned at the lower part of the filtering layer 7, and the filtering layer 7 contains filtering materials with gradually-increased grain sizes from top to bottom.
The condensation spray device 4 eliminates most of sulfur-containing steam generated in the slag granulation process through high-pressure atomization spray water, and completes the first step of white elimination of the sulfur-containing steam. The steam fan 5 can make the sulfur-containing steam formed in the slag granulation area quickly flow to the condensation spraying device 4, and a small part of the sulfur-containing steam which is not condensed is led to the filter pipe 8 of the white-removing pool 6 after the preliminary white removing is finished. The filter pipe 8 can lead sulfur-containing steam or water to the bottom of the bleaching tank 6 to carry out back flushing on the filter material from bottom to top. And a plurality of layers of filter materials with gradually increased granularity are arranged in the bleaching tank 6 from top to bottom, a small part of steam left after the first bleaching is back-flushed from the bottom of the filter materials in the bleaching tank 6 upwards through a back-flushing system, and the steam is thoroughly bleached in the process of back flushing.
In step 1, the high-temperature molten slag is discharged from a blast furnace molten slag inlet 9 of the granulating and water-reducing tower 2, the granulating water is discharged from a granulator 1 of the granulating and water-reducing tower 2, the high-temperature molten slag meets the granulating and water-reducing tower 2, the high-temperature molten slag is granulated under the action of the granulating water, and a slag-water mixture and a large amount of sulfur-containing steam are formed. The temperature of the high-temperature slag is 1350-1500 ℃, the temperature of the granulating water is 40-45 ℃, and the temperature of the sulfur-containing steam is 80-100 ℃. The slag flushing water enters the granulating and whiting tower 2 from a slag flushing water inlet at the lower part of the granulating and whiting tower 2, the slag water mixture is flushed out of the granulating and whiting tower 2 from a slag water outlet at the lower part of the granulating and whiting tower 2, and the sulfur-containing steam moves upwards in the granulating and whiting tower 2.
In step 2, the temperature of the spray water sprayed by the condensation spraying device 4 is 40-45 ℃, most of the sulfur-containing steam becomes condensed water under the action of the spray water, and the condensed water and the spray water fall into the collection area of the spray water collection hopper 3. Namely, spray water (about 40-45 ℃) sprayed by the condensation spray device 4 forms an atomized state in the granulation and white elimination tower 2, and the atomized spray water is uniformly distributed in the internal space of the granulation and white elimination tower 2. This contain sulphur steam upwards passes spray water and collects 3 entering atomized water regions of fighting, and most contain sulphur steam becomes the comdenstion water under atomized spray water's effect, and this comdenstion water falls into in the spray water collection of condensation spray set 4 below is fought 3 with spray water together. The water collected by the spray water collecting hopper 3 (i.e., the above-described condensed water and spray water) is discharged from the collected water outlet 13 out of the granulated absorption tower 2 and can be sent to a cooling tower.
In step 3, the residual part of the sulfur-containing steam is discharged from a steam outlet 10 at the top of the granulation and whitening tower 2, then the residual part of the sulfur-containing steam enters the filter pipe 8 through a steam conveying line 11, the upward movement of the sulfur-containing steam can be accelerated by the steam fan 5, and the residual part of the sulfur-containing steam can also be rapidly entered into the filter pipe 8 of the whitening pool 6 by the steam fan 5.
In step 4, the residual part of the sulfur-containing steam is discharged from the filter pipe 8 and upwards enters the filter layer 7 of the bleaching tank 6, the residual part of the sulfur-containing steam enters the filter layer 7 of the bleaching tank 6 to continuously upwards move and fully contact with the filter material of the filter layer 7, the residual part of the sulfur-containing steam upwards moves so as to realize back flushing of the filter material of the filter layer 7, and the deposited water completely absorbs the residual part of the sulfur-containing steam, so that the true thorough bleaching is realized.
The invention can realize the complete recovery of the steam in the slag flushing and granulating process and realize the recycling of water resources; the invention only adds the steam fan on the basis of the original slag bottom filtration process, is not only suitable for the new construction project of the blast furnace, but also suitable for the environmental protection reconstruction of the existing blast furnace slag system, and has great significance for the environmental protection production of the blast furnace slag system.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features and the technical schemes, and the technical schemes can be freely combined and used.
Claims (9)
1. A method for eliminating white slag of a blast furnace slag bottom filtration system is characterized in that a blast furnace slag bottom filtration method white slag elimination device is adopted, the blast furnace slag bottom filtration method white slag elimination device comprises a granulating white slag elimination tower (2) and a white slag elimination pool (6), a blast furnace slag inlet (9) and a granulator (1) are arranged at the lower part of the granulating white slag elimination tower (2), a condensing spray device (4) is arranged in the granulating white slag elimination tower (2), a steam outlet (10) is arranged at the upper part of the granulating white slag elimination tower (2), a filter layer (7) and a filter pipe (8) are arranged in the white slag elimination pool (6), and the steam outlet (10) is connected with the filter pipe (8) through a steam conveying pipeline (11);
the method for eliminating the white slag of the blast furnace slag bottom filtering system comprises the following steps:
step 1: the high-temperature molten slag meets the granulated water to generate a slag-water mixture and sulfur-containing steam;
step 2: spraying water sprayed by the condensation spraying device (4) to spray the sulfur-containing steam, wherein most of the sulfur-containing steam is condensed water under the action of the spraying water;
and step 3: the rest part of the sulfur-containing steam enters a filter pipe (8) of the blank removing pool (6);
and 4, step 4: the rest part of the sulfur-containing steam is discharged from the filter pipe (8) and upwards enters a filter layer (7) of the bleaching pool (6), and the bleaching pool (6) contains deposition water;
in step 4, the rest of the sulfur-containing steam enters a filter layer (7) of the bleaching tank (6) and contacts with filter materials of the filter layer (7).
2. The method for the whitening of a blast furnace slag bottom filtration system according to claim 1, characterized in that in step 1, the high-temperature molten slag is discharged from a blast furnace slag inlet (9) of a granulating and whitening tower (2), the granulating water is discharged from a granulator (1) of the granulating and whitening tower (2), the high-temperature molten slag and the granulating water meet in the granulating and whitening tower (2), the temperature of the high-temperature molten slag is 1350 ℃ to 1500 ℃, the temperature of the granulating water is 40 ℃ to 45 ℃, and the temperature of the sulfur-containing steam is 80 ℃ to 100 ℃.
3. The method for whitening a blast furnace slag bottom filtration system according to claim 1, characterized in that a spray water collecting hopper (3), a steam outlet (10), a condensation spraying device (4), the spray water collecting hopper (3), a blast furnace slag inlet (9) and the granulator (1) are sequentially arranged from top to bottom in the granulation whitening tower (2), and the condensation spraying device (4) comprises at least one layer of high-pressure atomizing nozzles.
4. The method for the bottom filtration system for the slag from a blast furnace of claim 3, characterized in that the side wall of the granulated de-whitening tower (2) is provided with a spray water inlet (12) and a collected water outlet (13), the spray water inlet (12) can be used for supplying spray water to the condensation spray device (4), and the collected water from the spray water collecting hopper (3) can be discharged through the collected water outlet (13).
5. The method for the whitening of the blast furnace slag bottom filtration system according to claim 4, characterized in that in the step 2, the temperature of spray water sprayed by the condensation spray device (4) is 40-45 ℃, and the condensed water and the spray water fall into the spray water collecting hopper (3).
6. The method for the whitening of a blast furnace slag bottom filtration system according to claim 1, characterized in that a steam blower (5) is arranged on the steam conveying pipeline (11), and in the step 3, the steam blower (5) can make the rest of the sulfur-containing steam enter the filter pipe (8) of the whitening pool (6).
7. The method of claim 1, wherein the filter pipe (8) is located within the filter layer (7) or below the filter layer (7).
8. The method for whitening a blast furnace slag bottom filter system according to claim 1, wherein the filter layer (7) comprises a filter material having a particle size gradually increasing from top to bottom.
9. The method of claim 1, wherein the upper surface of the pool (6) is higher than the upper surface of the filter layer (7), and the level of the deposition water in the pool (6) is higher than the upper surface of the filter layer (7).
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|---|---|---|---|---|
| CA2916647A1 (en) * | 2013-07-01 | 2015-01-08 | Paul Wurth S.A. | Steam condensation tower for a granulation installation |
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| CN203043827U (en) * | 2013-01-09 | 2013-07-10 | 王志雅 | Device for recovering sulfur dioxide from high-temperature smoke gas |
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| CN207401308U (en) * | 2017-10-13 | 2018-05-25 | 湖北超越环保设备有限公司 | A kind of purifying processing device of industrial waste high temperature incineration flue gas |
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| CA2916647A1 (en) * | 2013-07-01 | 2015-01-08 | Paul Wurth S.A. | Steam condensation tower for a granulation installation |
| CN207342486U (en) * | 2017-09-30 | 2018-05-11 | 广东石油化工学院 | A kind of smoke eliminator for coal-burning power plant |
| CN209302464U (en) * | 2018-12-20 | 2019-08-27 | 兴化金孔雀实业发展有限公司 | A kind of flue dust desulfurization purifier based on zinc oxide production |
| CN109439817A (en) * | 2018-12-27 | 2019-03-08 | 中冶京诚工程技术有限公司 | A kind of granulated energy conservation of blast furnace cinder disappears white equipment |
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