CN114849295A - Blast furnace grain slag filtering system - Google Patents
Blast furnace grain slag filtering system Download PDFInfo
- Publication number
- CN114849295A CN114849295A CN202210523422.1A CN202210523422A CN114849295A CN 114849295 A CN114849295 A CN 114849295A CN 202210523422 A CN202210523422 A CN 202210523422A CN 114849295 A CN114849295 A CN 114849295A
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- water
- pipe
- filtering
- water pumping
- blast furnace
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- 238000001914 filtration Methods 0.000 title claims abstract description 85
- 239000002893 slag Substances 0.000 title claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 238000005086 pumping Methods 0.000 claims abstract description 78
- 238000011010 flushing procedure Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 9
- 239000003651 drinking water Substances 0.000 abstract description 22
- 235000020188 drinking water Nutrition 0.000 abstract description 22
- 239000013049 sediment Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/20—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being provided in an open container
- B01D24/26—Upward filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a blast furnace granulated slag filtering system which comprises a filtering tank, a water pumping pipe and a water pump, wherein a filtering layer is arranged in the filtering tank; the water pumping pipes are arranged in multiple numbers, the water pumping pipes are tiled at the bottom of the filter tank, water pumping holes are formed in the pipe walls of the water pumping pipes, and the water pumping holes are lower than the central axis of the water pumping pipes; the water pump is communicated with the water pumping pipe. Through setting up the central axis that the hole is less than the drinking-water pipe that draws water, can be so that the opening of drawing water is downward, when the filter layer was passed to the filter residue and is fallen into the filtering ponds bottom of the pool, can avoid the filter residue to fall into in the drinking-water pipe from the hole that draws water, when the drinking-water pipe was drawn water the filtering ponds, the impact force of some rivers can be offset to the gravity of filter residue self for the drinking-water pipe is difficult to take out the filter residue of bottom of the pool, realizes the water sediment separation, improves the filter effect.
Description
Technical Field
The invention relates to the field of grain slag technology, in particular to a blast furnace grain slag filtering system.
Background
High-temperature liquid slag (1350-1500 ℃) can be generated during blast furnace smelting, and about 2.8 hundred million tons of high-temperature liquid slag is generated during domestic molten iron production every year. The slag is usually treated by a granulating slag process of a precipitation filtration method (often called a bottom filtration method).
A water-slag process by bottom filtering method features that the mixture of slag and water is introduced into filter pool, under the action of filter layer, the water is permeated to lower part, the water is pumped out of the pool by water pump tube, and the slag is left on filter layer and then caught by crown block. The filtering layer is generally divided into a plurality of sections, the lower part of the filtering layer is separated by water pipes, the water pipes are arranged in a staggered mode in the transverse direction and the vertical direction, a layer of cobblestones is paved above the water pipes, and the cobblestones are used for filtering the water granulated slag in the radial direction. After the water granulated slag runs for a period of time, the lower water pipe can be opened for backflushing, and the slag in the cobblestones is backflushed to the upper part of the upper grid to dredge the cobblestone layer.
The granulating slag filtering layer under the prior art condition is random when a cobble layer is laid, the model selection of cobbles does not achieve the best preparation, so that gaps among the filtering layers are different in size, a large number of crushed slag enters in an area with large gaps, part of the crushed slag enters the inside of a pipeline or enters a water tank along with a water pumping pipe, other equipment such as an air cooler breaks down, the filtering effect is reduced, and the cost of filtering operation is increased.
Disclosure of Invention
The embodiment of the invention aims to: the blast furnace granulated slag filtering system has the advantages of good filtering effect and long service life.
In order to achieve the purpose, the invention adopts the following technical scheme:
provided is a blast furnace granulated slag filtering system, including:
the filter tank is internally provided with a filter layer;
the water pumping pipes are arranged in multiple numbers and are flatly laid at the bottom of the filter tank, and water pumping holes are formed in the pipe walls of the water pumping pipes and are lower than the central axis of the water pumping pipes;
and the water pump is communicated with the water pumping pipe.
As a preferred scheme of the blast furnace granulated slag filtering system, the water pumping holes are strip-shaped holes, and the length of the water pumping holes extends along the length direction of the water pumping pipes.
As a preferred scheme of blast furnace grain slag filtration system, be provided with the first punch combination of multiunit on the drinking-water pipe, every group first punch combination includes at least two the drinking-water hole, at least two the drinking-water hole winds the central axis ring of drinking-water pipe arranges, the multiunit first punch combination is followed the length direction interval of drinking-water pipe arranges.
As a preferable mode of the blast furnace granulated slag filtering system, the filtering layer includes a plurality of filtering bodies, and the diameter of each filtering body is gradually reduced along the direction from bottom to top.
As a preferable scheme of the blast furnace granulated slag filtering system, a mesh is arranged above the filtering layer, the mesh diameter of the mesh is smaller than the diameter of the filtering body, the periphery of the mesh is fixedly connected with the filtering tank, and a buffer layer is laid above the mesh and comprises a plurality of buffer particles.
As a preferable mode of the blast furnace granulated slag filtering system, the diameter of the buffer particles is smaller than that of the filtering body.
As a preferable scheme of the blast furnace granulated slag filtering system, the water pumping pipe is separated from the bottom of the filtering tank.
As a preferable scheme of the blast furnace granulated slag filtering system, the system comprises a water collecting pipe, and the water pump is communicated with all the water pumping pipes through the water collecting pipe.
As a preferred scheme of blast furnace grain slag filtration system, including dashing the sediment pipe, dash the sediment pipe and run through the filter layer, it corresponds to dash the sediment pipe filter layer department is provided with multiunit second punch combination, every group the second punch combination includes a plurality of towards the sediment hole, and is a plurality of towards the sediment hole around the central axis annular of dashing the sediment pipe is arranged, the multiunit the second punch combination is followed the length direction interval of dashing the sediment pipe is arranged.
As a preferable scheme of the blast furnace granulated slag filtering system, a liquid level meter is arranged in the filtering tank, the liquid level meter penetrates through the filtering layer, and the liquid level meter is electrically connected with the water pump.
The invention has the beneficial effects that: through setting up the central axis that the hole is less than the drinking-water pipe that draws water, can be so that the opening of drawing water is downward, when the filter layer was passed to the filter residue and is fallen into the filtering ponds bottom of the pool, can avoid the filter residue to fall into in the drinking-water pipe from the hole that draws water, when the drinking-water pipe was drawn water the filtering ponds, the impact force of some rivers can be offset to the gravity of filter residue self for the drinking-water pipe is difficult to take out the filter residue of bottom of the pool, realizes the water sediment separation, improves the filter effect.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
FIG. 1 is a schematic view of a blast furnace granulated slag filtering system according to an embodiment of the invention.
Fig. 2 is a schematic view of a filtration tank according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a pumping tube according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a pumping tube according to an embodiment of the present invention.
In the figure:
1. a filtration tank; 2. a water pumping pipe; 201. a water pumping hole; 3. a water pump; 4. a filter layer; 5. a grid; 6. a buffer layer; 7. a slag flushing pipe; 8. a water collecting pipe.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
As shown in fig. 1 to 4, the blast furnace granulated slag filtering system provided by the invention comprises a filtering tank 1, a water pumping pipe 2 and a water pump 3, wherein a filtering layer 4 is arranged in the filtering tank 1; the plurality of water pumping pipes 2 are arranged, the plurality of water pumping pipes 2 are tiled at the bottom of the filter tank 1, water pumping holes 201 are formed in the pipe walls of the water pumping pipes 2, and the water pumping holes 201 are lower than the central axis of the water pumping pipes 2; the water pump 3 is communicated with the water pumping pipe 2. Through setting up the central axis that pumping hole 201 is less than pumping pipe 2, can be so that pumping hole 201 opening is downward, when the filter layer 4 is passed to the filter residue and is fallen into 1 bottom of the pool in the filtering ponds, can avoid the filter residue to fall into pumping pipe 2 from pumping hole 201, when pumping pipe 2 drew water to filtering ponds 1, the impact force of some rivers can be offset to the gravity of filter residue self, make pumping pipe 2 be difficult to take out the filter residue of bottom of the pool, realize the separation of water and slag, improve the filter effect.
Specifically, the pumping hole 201 is a strip-shaped hole, and the length of the pumping hole 201 extends along the length direction of the pumping pipe 2. In this embodiment, the diameter of the water pumping pipes 2 is 325 mm, the distance between two adjacent water pumping pipes 2 is 2.5-3 m (the distance between two adjacent water pumping pipes 2 can be adjusted according to the size of the filtering tank 1), the length of the water pumping hole 201 is 200 mm, and the width is 10 mm, so that the filter residue at the bottom of the filtering tank 1 can be prevented from entering the water pumping pipes 2 as far as possible; two ends of the water pumping hole 201 are cambered surfaces, namely the water pumping hole 201 is a waist-shaped hole, so that the processing of the water pumping hole 201 can be facilitated.
Specifically, the water pumping pipe 2 is provided with a plurality of first hole groups, each first hole group comprises at least two water pumping holes 201, the at least two water pumping holes 201 are annularly arranged around the central axis of the water pumping pipe 2, and the plurality of first hole groups are arranged at intervals along the length direction of the water pumping pipe 2. By arranging at least two water pumping holes 201 annularly around the central axis of the water pumping pipe 2, the number of the water pumping holes 201 can be increased as much as possible, and the water pumping efficiency is improved; in this embodiment, each group of the first hole groups includes two pumping holes 201, the two pumping holes 201 are symmetrically arranged on two sides of the pumping pipe 2, and a distance between two adjacent groups of the first hole groups is 300 mm.
Specifically, the water pumping pipe 2 is spaced from the bottom of the filtering tank 1. In this embodiment, the interval distance at the bottom of drinking- water pipe 2 and 1 pond of filtering ponds is 200 millimeters, the bottom of the pool of filtering ponds 1 can be provided with the protruding support drinking-water pipe 2 that gets up, can provide the space of retaining like this, it is not thorough when filtering ponds 1 filters, when having the filter residue to pass filter layer 4, the filter residue can fall into the bottom of the pool under the effect of gravity, when water pump 3 drew water the operation, the rivers can enter into drinking-water pipe 2 from drinking-water hole 201, interval distance through setting up drinking- water pipe 2 and 1 bottom of the pool is 200 millimeters, can increase the distance between bottom of the pool filter residue and the drinking-water hole 201, reduce the probability that the filter residue got into drinking-water pipe 2.
Specifically, the filter layer 4 includes a plurality of filter bodies, the diameter of which gradually decreases in the direction from bottom to top. In the embodiment, the filter body is cobblestones, the cobblestones with four diameter grades are screened according to the sizes of 40-50 mm, 20-40 mm, 10-20 mm and 5-10 mm, wherein, the cobblestones with the diameter of 40-50 mm are laid at the lowest part, the laid cobblestones with the thickness of 400-500 mm and the diameter of 40-50 mm need to cover the water pumping pipe 2, then paving cobbles with the diameter of 20-40 mm, paving the cobbles with the thickness of 300-400 mm, then paving 10-20 mm diameter cobblestones with the thickness of 200-300 mm, and finally paving 5-10 mm diameter cobblestones with the thickness of 100-200 mm, when the filter is laid, the filter tank 1 is fully paved, no gap can be left around the filter tank 1, and filter residues are prevented from directly penetrating through the filter layer 4 and falling into the bottom of the tank. Through setting up the diameter that upwards crosses the filter body from down and reducing gradually, can improve the stability of filter layer 4, the major diameter of lower floor crosses the filter body and can provide for the minor diameter of upper strata to cross the filter body and directly prop, and the filter body of upper strata minor diameter can filter the sediment body, fully guarantees filtration system's high-efficient operation.
Specifically, a mesh 5 is arranged above the filter layer 4, the mesh diameter of the mesh 5 is smaller than that of the filter body, in the present embodiment, the diameter of the mesh is 3-5 mm, three meshes 5 are arranged, the three meshes 5 are stacked, the meshes of the three meshes 5 are staggered and crossed, the periphery of the mesh 5 is fixedly connected with the filter tank 1, a buffer layer 6 is laid above the mesh 5, the buffer layer 6 comprises a plurality of buffer particles, in the present embodiment, the buffer particles are river sand, and the laying thickness of the buffer layer 6 is 100-200 mm. By arranging the grid 5 and the buffer layer 6, the grid 5 and the buffer layer 6 can pre-filter the grain slag, and after the filtering is finished, a crown block mechanical arm can be adopted to grab filter residues on the buffer layer 6; the setting of buffer layer 6 can avoid overhead traveling crane arm direct impact net 5 to rigid collision appears between avoiding the period, increase of service life.
In particular, the diameter of the buffer particles is smaller than the diameter of the filter body. In this embodiment, the diameter of the buffer particles is 5 mm or less. By setting the diameter of the buffer particles to be smaller than the diameter of the filter body, the buffer layer 6 can filter most of the slag.
Specifically, the water pump 3 includes a water collecting pipe 8, and is communicated with all the pumping pipes 2 through the water collecting pipe 8. Through setting up collector pipe 8, can draw water the operation through a water pump 3, save the quantity of water pump 3, practice thrift the cost. In this embodiment, the diameter of collector pipe 8 is 600 millimeters, and the diameter of collector pipe 8 is greater than the diameter of drinking-water pipe 2 far away, can set up the recess at the bottom of the pool of filtering ponds 1, with collector pipe 8 embedding to the recess in to keep collector pipe 8 and drinking-water pipe 2 in the horizontal plane.
Specifically, including towards sediment pipe 7, towards sediment pipe 7 and run through filtering layer 4, towards sediment pipe 7 and correspond filtering layer 4 department and be provided with multiunit second punch combination, every group second punch combination includes a plurality of towards the sediment hole, and a plurality of towards the sediment hole are arranged around towards the central axis ring of sediment pipe 7, and multiunit second punch combination is arranged along the length direction interval of towards sediment pipe 7. In this embodiment, the diameter of the slag flushing pipe 7 is 150 mm, the diameter of the slag flushing holes is 5 mm, the distance between two adjacent slag flushing holes in each group is 30 mm, the distance between two adjacent groups of second holes is 100 mm, the slag flushing holes are mainly arranged in a cobblestone area corresponding to the diameter of 40-50 mm and the diameter of 20-40 mm, when water flows gush out from the slag flushing holes, backflushing can be performed upwards from the bottom of the filter layer 4, filter residues in the filter layer 4 are flushed upwards, and cleaning of the filter layer 4 is achieved.
In other embodiments, can not set up towards sediment pipe 7, at this moment, water pump 3 need possess the function of drawing water and water injection function, and when water pump 3 was in the state of drawing water, the pipe 2 that draws water can draw water to filtering ponds 1, and when water pump 3 was in the water injection state, the pipe 2 that draws water can act as towards sediment pipe 7, and at this moment, rivers were gushed out from the hole 201 that draws water, carried out the recoil clearance to filter layer 4.
Specifically, a liquid level meter is arranged in the filter tank 1, penetrates through the filter layer 4, and is electrically connected with the water pump 3. By arranging the liquid level meter, the starting operation of the water pump 3 can be realized. In this embodiment, the level gauge is fixed inside the slag flushing pipe 7.
During blast furnace slag tapping iron, after the sediment water mixture got into filtering ponds 1, when the level gauge detected the liquid level than grid 5 top buffer layer 6 height 1000 millimeters, water pump 3 can automatic start, takes out the water in the filtering ponds 1, when the level gauge detected the liquid level and is less than the height of grid 5, water pump 3 can automatic stop. After the blast furnace slag discharging is finished, the water slag on the upper part can be grabbed and cleaned by using a crown block mechanical arm, after the water slag on the upper part is cleaned, the filter layer 4 can be back-flushed and cleaned by using the slag flushing pipe 7, and the back-flushing time is 2-3 minutes
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it will be understood by those skilled in the art that the specification as a whole and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A blast furnace granulated slag filtering system, comprising:
the filter tank is internally provided with a filter layer;
the water pumping pipes are arranged in multiple numbers and are flatly laid at the bottom of the filter tank, and water pumping holes are formed in the pipe walls of the water pumping pipes and are lower than the central axis of the water pumping pipes;
and the water pump is communicated with the water pumping pipe.
2. The blast furnace granulated slag filtering system according to claim 1, wherein the pumping hole is a strip-shaped hole, and the length of the pumping hole extends along the length direction of the pumping pipe.
3. The blast furnace granulated slag filtering system according to claim 1, wherein a plurality of groups of first hole groups are arranged on the water pumping pipe, each group of first hole groups comprises at least two water pumping holes, the at least two water pumping holes are annularly arranged around a central axis of the water pumping pipe, and the plurality of groups of first hole groups are arranged at intervals along the length direction of the water pumping pipe.
4. The blast furnace granulated slag filtering system according to claim 1, wherein the filtering layer comprises a plurality of filtering bodies, and the diameter of the filtering bodies is gradually reduced in a direction from bottom to top.
5. The blast furnace granulated slag filtering system according to claim 4, wherein a mesh is arranged above the filtering layer, the mesh diameter of the mesh is smaller than the diameter of the filtering body, the periphery of the mesh is fixedly connected with the filtering tank, and a buffer layer is laid above the mesh and comprises a plurality of buffer particles.
6. The blast furnace granulated slag filtering system according to claim 5, wherein the diameter of the buffer particles is smaller than the diameter of the filter body.
7. The blast furnace granulated slag filtering system according to claim 1, wherein the suction pipe is spaced from a bottom of the filtering tank.
8. The blast furnace granulated slag filtering system according to claim 1, comprising a water collection pipe, wherein the water pump is communicated with all the water pumping pipes through the water collection pipe.
9. The blast furnace granulated slag filtering system according to claim 1, comprising a slag flushing pipe, wherein the slag flushing pipe penetrates through the filter layer, a plurality of groups of second hole groups are arranged at the position, corresponding to the filter layer, of the slag flushing pipe, each group of second hole groups comprises a plurality of slag flushing holes, the plurality of slag flushing holes are annularly arranged around the central axis of the slag flushing pipe, and the plurality of groups of second hole groups are arranged at intervals along the length direction of the slag flushing pipe.
10. The blast furnace granulated slag filtering system according to claim 1, wherein a liquid level meter is arranged in the filtering tank, the liquid level meter penetrates through the filtering layer, and the liquid level meter is electrically connected with the water pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210523422.1A CN114849295A (en) | 2022-05-13 | 2022-05-13 | Blast furnace grain slag filtering system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210523422.1A CN114849295A (en) | 2022-05-13 | 2022-05-13 | Blast furnace grain slag filtering system |
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| CN114849295A true CN114849295A (en) | 2022-08-05 |
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| CN202210523422.1A Pending CN114849295A (en) | 2022-05-13 | 2022-05-13 | Blast furnace grain slag filtering system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048810A (en) * | 1989-12-23 | 1991-01-30 | 湖南省冶金规划设计院 | Gravity filter bed with moving band for slag and water separation |
| KR20120086164A (en) * | 2011-01-25 | 2012-08-02 | 삼부강업(주) | Sludge Disposal Device using the Gravity Dehydration |
| CN107151715A (en) * | 2017-06-30 | 2017-09-12 | 秦冶工程技术(北京)有限责任公司 | A kind of blast furnace water-flushing-slag apparatus and technique based on itself permeation filtration |
| CN207330964U (en) * | 2017-06-30 | 2018-05-08 | 秦冶工程技术(北京)有限责任公司 | A kind of blast furnace water-flushing-slag apparatus based on itself permeation filtration |
| KR101997861B1 (en) * | 2019-02-14 | 2019-10-01 | 주식회사 송림 | Filtering apparatus for water treatment |
| CN113952771A (en) * | 2021-11-24 | 2022-01-21 | 中冶京诚工程技术有限公司 | High-efficient filtration system that hardens is prevented to blast furnace grain slag |
| CN114011155A (en) * | 2021-11-24 | 2022-02-08 | 中冶京诚工程技术有限公司 | Blast furnace slag bottom filter tank and blast furnace slag bottom filtering method filtering system |
-
2022
- 2022-05-13 CN CN202210523422.1A patent/CN114849295A/en active Pending
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|---|---|---|---|---|
| CN1048810A (en) * | 1989-12-23 | 1991-01-30 | 湖南省冶金规划设计院 | Gravity filter bed with moving band for slag and water separation |
| KR20120086164A (en) * | 2011-01-25 | 2012-08-02 | 삼부강업(주) | Sludge Disposal Device using the Gravity Dehydration |
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| CN114011155A (en) * | 2021-11-24 | 2022-02-08 | 中冶京诚工程技术有限公司 | Blast furnace slag bottom filter tank and blast furnace slag bottom filtering method filtering system |
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