CN211963678U - Steam whitening system of water slag filtering tank adopting bottom filtering method - Google Patents
Steam whitening system of water slag filtering tank adopting bottom filtering method Download PDFInfo
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- CN211963678U CN211963678U CN202020530581.0U CN202020530581U CN211963678U CN 211963678 U CN211963678 U CN 211963678U CN 202020530581 U CN202020530581 U CN 202020530581U CN 211963678 U CN211963678 U CN 211963678U
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Abstract
The utility model discloses a white system disappears to end filter method grain sediment filtering ponds steam belongs to grain sediment and disappears white technical field. The big and polluted environment's of production volume of steam when dashing the sediment to current end filter method in the filter tank problem, the utility model provides a bottom filter method grain slag filter tank steam disappears white system, it includes the filter tank, and the bottom of granulation tower is passed through the pipeline and is connected with the filter tank, the top of filter tank is provided with the export that supplies steam to spill over and the sealing device of removal, and sealing device seals the top of filter tank, and the export top is provided with disappears white cover, disappears white cover and is connected through the chimney of pipe with the granulation tower, is provided with spray set in the chimney. The utility model ensures the sealing performance of the filter tank during slag flushing and reduces the generation of steam; and the steam can be discharged to a chimney of the granulation tower for spraying only through an outlet at the top of the filter tank, so that the effect of steam whitening is improved; and when the slag grabbing is carried out, the sealing device moves to one side of the top of the filtering tank, so that the slag grabbing work is not hindered, and the structure is simple.
Description
Technical Field
The utility model belongs to the technical field of the white system that disappears of grain sediment, more specifically say, relate to a white system that disappears of end filtration method grain sediment filtering ponds steam.
Background
In the existing blast furnace slag bottom filtration method treatment process, blast furnace slag flows into a granulation tower through a slag ditch, is smashed, quenched and granulated by high-speed water flow sprayed by a granulator arranged in the granulation tower, and is soaked and quenched in the granulation tower in one step; the quenched slag-water mixture flows into a filter tank through an outlet device, slag flushing water is filtered by a filter material in the filter tank and then sent to a cooling tower for recycling, and granulated blast furnace slag stays on the upper layer of the filter material of the filter tank and waits for slag grabbing during traveling. In the slag treatment process of the bottom filtration method, a large amount of steam is generated when slag flushing water meets high-temperature slag, and although part of steam can be collected through a chimney of a granulation tower, the slag foaming time in the granulation tower is limited, the temperature of a slag-water mixture discharged from the granulation tower is still about 70-90 ℃, a large amount of steam is generated after the slag-water mixture enters a filter tank, especially the steam amount is larger at a place with lower temperature, the part of steam contains harmful substances such as hydrogen sulfide, sulfur dioxide and the like, and the steam is not well treated, so that the slag flushing field environment is relatively severe, and water resources are wasted.
Corresponding improvement is also carried out aiming at the problems, for example, Chinese patent application No. CN201711281922.4, the publication date is 3 and 20 in 2018, the patent is a system and a method for recovering and eliminating white mist by flushing cinder steam, and the system for recovering and eliminating white mist by flushing cinder steam comprises: the slag flushing water vapor chimney is arranged close to the blast furnace, and the lower part of the slag flushing water vapor chimney can contain waste slag discharged by the blast furnace and carry out slag flushing operation; the cooling spraying devices are arranged in the middle of the slag flushing water vapor chimney and can spray atomized water towards the lower part of the slag flushing water vapor chimney; the hot blast stove assembly is communicated with the upper parts of the blast furnace and the slag flushing water vapor chimney, and can convey produced hot air into the blast furnace and convey produced hot waste gas to the upper part of the slag flushing water vapor chimney after treatment. The disadvantages of the patent are that: the treatment effect on the rapidly rising large amount of steam is not ideal, and a large amount of steam is still discharged, so that the waste of water resources is caused.
Also like chinese patent application No. CN201822214685.6, published as 2019, 8, 23, this patent discloses a system for eliminating steam and recovering heat energy in a blast furnace granulated slag process, which comprises a granulation tower, a chimney, a filtering tank, a hot water heat exchange unit, a cooling tower, and a water storage tank, which are sequentially connected in series, wherein the filtering tank is externally connected with a first steam heat exchanger, and the top of the filtering tank is provided with a movable steam cover. The disadvantages of the patent are that: although the steam whitening phenomenon can be effectively treated, the cost is higher and the equipment maintenance is complicated.
SUMMERY OF THE UTILITY MODEL
1. Problems to be solved
The problem of the production volume of steam is big and polluted environment when dashing the sediment to current end filter method in the filtering ponds, the utility model provides a white system disappears of end filter method grain sediment filtering ponds steam. The sealing device ensures the sealing performance of the filter tank during slag flushing, and reduces the generation of steam; and the steam can be discharged to a chimney of the granulation tower for spraying only through an outlet at the top of the filter tank, so that the effect of steam whitening is improved; and when grabbing the sediment, the sealing device moves to one side of the top of the filter tank, so that the sediment grabbing work is not hindered, the structure is simple, and the operation is convenient.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
The steam white elimination system comprises a filter tank, wherein the bottom of a granulating tower is connected with the filter tank through a pipeline, a movable sealing device is arranged at the top of the filter tank and seals the top of the filter tank, an outlet for steam to overflow is further formed in the top of the filter tank, a white elimination cover is arranged above the outlet and is connected with a chimney of the granulating tower through a guide pipe, and a spraying device is arranged in the chimney. Reduce the production of steam in the filter tank and effectively improve the environment of job site.
Furthermore, the sealing device comprises a guide rail and a trolley, the guide rail is arranged at the top of the filtering tank, the trolley is driven by a transmission part to move on the guide rail, the trolley is connected with the waterproof cloth bag, and the waterproof cloth bag is unfolded or closed at the top of the filtering tank through the movement of the trolley on the guide rail. Simple structure and low cost.
Furthermore, the waterproof cloth bag is rectangular, and vertical curtains are arranged on four sides of the rectangle. The sealing performance is improved.
Furthermore, the length of the guide rail is greater than that of the top of the filter tank. The sealing performance is improved.
Furthermore, the spraying device comprises a plurality of water inlet pipes, the water inlet pipes are inserted into the chimney, and one ends of the water inlet pipes inserted into the chimney are provided with spray heads. Simple structure, installation and maintenance are all comparatively convenient.
Furthermore, a plurality of water inlet pipes are annularly distributed in the chimney. The contact area of the spray water and the steam is increased, and the spray effect is improved.
Furthermore, the spray head is a rotary spray head. The sprayed water flow has wide angle range, and the spraying effect is improved.
Furthermore, the surface of the guide rail is evenly coated with the lubricant. The trolley slides on the guide rail smoothly, and the service life of the guide rail and the trolley is prolonged.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model arranges the movable sealing device on the top of the filtering tank, when slag flushing is carried out, the sealing device seals the top of the filtering tank so as to improve the internal temperature of the filtering tank and reduce the generation of steam; the unorganized discharge of the steam in the filtering tank is avoided, so that the steam can be discharged only through an outlet at the top of the filtering tank; because the sealing device at the outlet can not seal, the white eliminating cover is arranged above the outlet to surround the outlet, so that steam enters a chimney of the granulation tower through the white eliminating cover to be recovered; the whole structure is simple, the steam whitening of the filter tank is realized, and the environmental pollution is reduced;
(2) the sealing device of the utility model comprises a guide rail arranged at the top of the filter tank, the trolley is connected with the waterproof cloth bag, and the trolley is driven by the transmission part to move on the guide rail so as to realize the expansion or the closure of the waterproof cloth bag, when slag flushing is carried out, the trolley drives the waterproof cloth bag to expand on the guide rail so as to realize the sealing of the top of the filter tank; after the slag washing is finished, the trolley drives the waterproof cloth bag to be closed on the guide rail at one side of the guide rail, so that the waterproof cloth bag does not influence the subsequent slag grabbing operation; the structure is simple, the cost is low, and the sealing effect is good;
(3) the waterproof cloth bag of the utility model is rectangular, and is better attached to the top of the filter tank, so that the overall sealing effect is improved; each side of the rectangle is provided with a vertical curtain, and the vertical curtain is arranged to avoid the problem of poor sealing effect caused by a gap between the waterproof cloth bag and the filter tank; the length of the guide rail is greater than that of the top of the filter tank, so that the waterproof cloth bag can be completely covered on the top of the filter tank, and the sealing performance of the whole system is further improved;
(4) the utility model adopts a plurality of water inlet pipes as the spraying device, has simple structure and is convenient to install and disassemble; the plurality of water inlet pipes are annularly distributed in the chimney, so that the contact area of the water inlet pipes and the steam coming from the filter tank is increased, and the spraying efficiency is improved; and the spray head is a rotary spray head, so that the range of the water flow spraying angle is wide, the retention time of spray water in the chimney can be increased, the spraying effect is improved, and the aim of removing the white water by steam is fulfilled.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic plan view of the present invention.
In the figure: 1. a guide rail; 2. a trolley; 3. a waterproof cloth bag; 4. a white space eliminating cover; 5. a conduit; 6. a chimney; 7. a spraying device; 8. a transmission member.
Detailed Description
The invention will be further described with reference to specific embodiments and drawings.
Example 1
As shown in fig. 1, 2 and 3, a steam whitening system of a water slag filter tank by a bottom filtration method comprises a filter tank, wherein the bottom of a granulation tower is connected with the filter tank through a pipeline, a movable sealing device is arranged at the top of the filter tank, the sealing device seals the top of the filter tank, an outlet for steam to overflow is further arranged at the top of the filter tank, a whitening cover 4 is arranged above the outlet, the whitening cover 4 is connected with a chimney 6 of the granulation tower through a conduit 5, a spraying device 7 is arranged in the chimney 6, when the spraying device 7 sprays and cools steam coming in from the filter tank, the steam returns to the bottom of the granulation tower through condensation and then enters the filter tank again through the pipeline for filtration. The utility model can move at the top of the filtering tank to realize sealing or unsealing by arranging the movable sealing device at the top of the filtering tank; when slag flushing is carried out, the sealing device seals the top of the filtering tank so as to improve the internal temperature of the filtering tank and reduce the generation of steam; when slag grabbing is carried out, the sealing device moves to remove the sealing state of the top of the filtering tank without influencing slag grabbing operation, and the operation is simple and rapid; an outlet is formed in the top of the filtering tank and used for allowing steam in the filtering tank to flow out, the outlet is wrapped by a white eliminating cover 4 above the outlet to seal the outlet, so that the steam can only enter the white eliminating cover 4 through the outlet and enter a chimney 6 through a guide pipe 5, the unorganized discharge of the steam is avoided, the concentrated guide effect on the steam generated in the filtering tank is achieved, and certain environmental pollution caused by the fact that the steam overflows into the air is avoided; the utility model discloses can effectual reduction filter the steam that produces in the pond, and play concentrated guide effect to the steam that produces in the filter pond, avoid steam excessive to lead to environmental pollution in the environment, overall structure is simple, alleviates the pollution to the job site environment.
Specifically, in the embodiment, the sealing device comprises a guide rail 1 and a trolley 2, the guide rail 1 is arranged at the top of the filter tank, the trolley 2 is driven by a transmission part 8 to move on the guide rail 1, preferably, a lubricant is uniformly coated on the surface of the guide rail 1, so that the friction between the trolley 2 and the guide rail 1 is reduced, the trolley 2 slides smoothly on the guide rail 1, and the transmission part 8 is a motor; the trolley 2 is connected with the waterproof cloth bag 3, the waterproof cloth bag 3 is unfolded or closed at the top of the filter tank by moving the trolley 2 on the guide rail 1, the waterproof cloth bag 3 is an anticorrosion and waterproof cloth and is supported by an internal framework, the waterproof cloth bag 3 can be opened or closed by the movement of the trolley 2, and the waterproof cloth bag 3 is made of waterproof, heat-resistant, acid-corrosion-resistant materials, so that the waterproof cloth bag has a longer service life; because the top of the filter tank is also provided with an outlet, the guide rail 1 cannot be arranged at the position of the outlet, and the waterproof cloth bag 3 cannot cover the outlet; therefore, the white eliminating cover 4 is arranged above the outlet, and the white eliminating cover 4 is a sealing cover to seal the outlet, so that the sealing performance of the whole filter tank is enhanced. The trolley 2 moves on the guide rail 1 to realize the opening and closing of the waterproof cloth bag 3, and then the top of the filter tank is sealed or unsealed, so that the operation is simple and convenient, the cost is lower, and the sealing effect is good. Other movable sealing devices which can realize the sealing at the top of the filter tank and can not obstruct the slag grabbing operation can be used in the utility model.
Example 2
Basically as in embodiment 1, preferably, the waterproof cloth bag 3 is rectangular to better fit with the top of the filter tank, so as to improve the overall sealing effect; the vertical curtains are arranged on the four sides of the rectangle, and the problem of poor sealing effect caused by gaps between the waterproof cloth bag 3 and the filtering tank is solved due to the arrangement of the vertical curtains; in the implementation, the outlet is arranged on the side wall of the top of the filtering tank, and the length of the guide rail 1 is greater than that of the top of the filtering tank, so that the waterproof cloth bag 3 can be fully covered on the top of the filtering tank, and the sealing performance of the whole system is further improved; taking fig. 2 as an example, the horizontal direction of the guide rail 1 in fig. 2 is defined as the length direction of the guide rail 1, the horizontal direction of the top of the filter tank is defined as the length direction of the top of the filter tank, and the outlet is arranged on the side wall so as not to obstruct the arrangement of the guide rail 1 in the length direction of the top of the filter tank.
Example 3
Basically, like the embodiment 2, in this embodiment, the spraying device 7 includes a plurality of water inlet pipes, the water inlet pipes are inserted into the chimney 6, one ends of the water inlet pipes inserted into the chimney 6 are provided with nozzles, and the nozzles spray the water flow by conveying the water flow through the water inlet pipes and then spraying the water flow to spray the steam, so that the structure is simple, and the installation and the disassembly are convenient; specifically, a plurality of water inlet pipes are annularly distributed in the chimney 6, so that the contact area of the water inlet pipes and steam from the filter tank is increased, and the spraying efficiency is improved; and the spray head is a rotary spray head, so that the range of the water flow spraying angle is wide, the retention time of the spray water in the chimney 6 can be increased, the spraying effect is improved, and the aim of removing the white water by the steam is fulfilled. Other spray devices 7 that can realize the spraying effect can all be used in the utility model discloses in.
The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.
Claims (8)
1. The utility model provides a white system of end filter method grain slag filtering ponds steam disappears, includes the filtering ponds, and the bottom of granulation tower is passed through the pipeline and is connected with the filtering ponds, its characterized in that: the top of the filter tank is provided with a movable sealing device, the sealing device seals the top of the filter tank, the top of the filter tank is also provided with an outlet for steam to overflow, a white eliminating cover (4) is arranged above the outlet, the white eliminating cover (4) is connected with a chimney (6) of the granulation tower through a conduit (5), and a spraying device (7) is arranged in the chimney (6).
2. The steam whitening system for the water granulated slag filter tank by the bottom filtration method according to claim 1, characterized in that: the sealing device comprises a guide rail (1) and a trolley (2), the guide rail (1) is arranged at the top of the filtering tank, the trolley (2) is driven by a transmission piece (8) to move on the guide rail (1), the trolley (2) is connected with the waterproof cloth bag (3), and the waterproof cloth bag (3) is unfolded or closed at the top of the filtering tank through the movement of the trolley (2) on the guide rail (1).
3. The steam whitening system for the water granulated slag filter tank by the bottom filtration method according to claim 2, characterized in that: the waterproof cloth bag (3) is rectangular, and vertical curtains are arranged on four sides of the rectangle.
4. The steam whitening system for the water granulated slag filter tank by the bottom filtration method according to claim 3, characterized in that: the length of the guide rail (1) is greater than that of the top of the filter tank.
5. The steam whitening system for the water granulated slag filter tank by the bottom filtration method according to claim 1, characterized in that: the spraying device (7) comprises a plurality of water inlet pipes, the water inlet pipes are inserted into the chimney (6), and one ends of the water inlet pipes inserted into the chimney (6) are provided with spray heads.
6. The steam whitening system for the water granulated slag filter tank by the bottom filtration method according to claim 5, characterized in that: the plurality of water inlet pipes are annularly distributed in the chimney (6).
7. The steam whitening system for the water slag filter tank by the bottom filtration method according to claim 5 or 6, characterized in that: the spray head is a rotary spray head.
8. The steam whitening system for the water granulated slag filter tank by the bottom filtration method according to claim 2, characterized in that: the surface of the guide rail (1) is evenly coated with lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020530581.0U CN211963678U (en) | 2020-04-10 | 2020-04-10 | Steam whitening system of water slag filtering tank adopting bottom filtering method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020530581.0U CN211963678U (en) | 2020-04-10 | 2020-04-10 | Steam whitening system of water slag filtering tank adopting bottom filtering method |
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| CN211963678U true CN211963678U (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931762A (en) * | 2022-05-16 | 2022-08-23 | 阳春新钢铁有限责任公司 | Method for closed smoke removal and slag flushing water recovery of blast furnace slag flushing ditch |
-
2020
- 2020-04-10 CN CN202020530581.0U patent/CN211963678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931762A (en) * | 2022-05-16 | 2022-08-23 | 阳春新钢铁有限责任公司 | Method for closed smoke removal and slag flushing water recovery of blast furnace slag flushing ditch |
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