CN113443776B - Turbid circulating water treatment device and method for steel mill - Google Patents
Turbid circulating water treatment device and method for steel mill Download PDFInfo
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- CN113443776B CN113443776B CN202110768056.1A CN202110768056A CN113443776B CN 113443776 B CN113443776 B CN 113443776B CN 202110768056 A CN202110768056 A CN 202110768056A CN 113443776 B CN113443776 B CN 113443776B
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- circulating water
- filter
- magnetic suction
- turbid circulating
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 40
- 229910052742 iron Inorganic materials 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims abstract description 28
- 239000010865 sewage Substances 0.000 claims abstract description 18
- 238000002955 isolation Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 30
- 239000000126 substance Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 22
- 230000005389 magnetism Effects 0.000 description 11
- 241000220317 Rosa Species 0.000 description 8
- 238000004062 sedimentation Methods 0.000 description 8
- 239000013049 sediment Substances 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical group O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a turbid circulating water treatment device and a treatment method for a steel mill, wherein the turbid circulating water treatment device comprises a mobile vehicle body and a scraper frame arranged at the lower end of the mobile vehicle body, a plurality of electro-hydraulic push rods and collecting boxes are respectively arranged on the side walls of the scraper frame, isolation covers are arranged on the two side walls of the electro-hydraulic push rods, magnetic suction boxes are arranged at the bottom ends of the two isolation covers, mounting frames are arranged at the telescopic ends of the electro-hydraulic push rods, permanent magnets are arranged at the two sides of the bottom ends of the mounting frames, connecting frames are arranged at the two sides of the upper end of the mounting frames, a sleeve is arranged at the bottom end of each collecting box in a communicating manner, the sleeve is arranged on the collecting box in a sliding manner, a cleaning plate is arranged in each collecting box, and the water outlet end of each submersible pump is connected with the corresponding filtering box. The hydraulic push rod enables the permanent magnet to leave the magnetic suction box, the iron scale on the outer surface of the magnetic suction box falls into the material guide opening under the scraping of the cleaning plate, and the iron scale is discharged into the filter box for filtering through the submersible sewage pump and the conveying pipe, so that the magnetic suction box has a good collecting effect on the iron scale in turbid circulating water.
Description
Technical Field
The invention belongs to the technical field of circulating water treatment devices, and particularly relates to a turbid circulating water treatment device for a steel mill, and a treatment method of the turbid circulating water treatment device for the steel mill.
Background
Hot rolled steel is rolled by high temperature heating, the strength of the hot rolled steel is not very high, but the hot rolled steel is enough for the use of the hot rolled steel, and the hot rolled steel has good plasticity and weldability, so that the hot rolled steel is more commonly used.
The turbid circulating water is water for directly washing and descaling a hot steel plate, the treated turbid circulating water needs flocculating and precipitating circulating water, the turbidity is generally higher, and the iron scale is iron-containing oxide generated on the surface of steel after the rolled piece is rapidly cooled by water in the rolling process of a rolling mill, and the iron scale accounts for 3% -5% of the treated steel, and the Fe content of the iron-containing oxide is as high as 80% -90%. The main components of the iron scale are Fe2O3, fe3O4 and FeO, wherein the outermost layer of the iron scale is Fe2O3, and accounts for about 10 percent of the thickness of the iron scale, the middle layer of the iron scale is Fe3O4, and about 50 percent of the iron scale contacts with iron to form FeO, and about 40 percent of the iron scale is in contact with iron, so that more iron scale can be circularly generated in the iron scale in the process of treating turbid circulating water, the iron scale can flow along with the circulation of turbid circulating water, the flowing sequence of the traditional turbid circulating water treatment device is composed of a cooling tower, a hot rail workshop, a cyclone sedimentation tank, a advection sedimentation tank and a pressure filter, the turbid circulating water passing through the pressure filter is in a final filtering state, and is recycled and discharged into the cooling tower for next circulation, and the defects are that: in the process of turbid circulating water treatment, sundries such as iron scales in the turbid circulating water treatment process are subjected to secondary precipitation and filtration through a cyclone sedimentation tank and a laminar flow sedimentation tank, although large-particle iron scales in the turbid circulating water can be filtered, part of the iron scales still enter a cooling tower along with turbid circulating water, a cooling spray nozzle at a water outlet end is easy to block, in the laminar flow sedimentation tank, a scraper blade arranged at the bottom end of the liquid surface of the horizontal flow sedimentation tank moves horizontally under the action of a horizontally moving vehicle body, the scraper blade pushes sediment precipitated at the bottom of the laminar flow sedimentation tank to move in a mud storage tank, the entered sediment is discharged through a sewage pump, the sediment is required to be screened later, the workload and the cost are increased, the scraper blade is easy to disturb the sediment in the moving process, and part of the sediment can be scattered, and fine iron scales in the horizontal flow out along with the turbid circulating water, so that the sediment is unfavorable for collecting the iron scales in the turbid circulating water.
Therefore, we propose a device and a method for treating turbid circulating water in a steelworks to solve the problems mentioned in the background art.
Disclosure of Invention
The invention aims to provide a device and a method for treating turbid circulating water in a steel mill, which are used for solving the problem that a advection sedimentation tank provided in the background art is poor in collecting effect on scale in turbid circulating water.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a steel mill turbid circulating water treatment device, includes the mobile vehicle body and sets up the scraper blade frame at its lower extreme, scraper blade frame lateral wall and lower part up end are provided with a plurality of electrohydraulic push rod and collection box respectively, all be provided with the cage on the electrohydraulic push rod both sides wall, two the cage bottom is provided with the magnetism and inhales the case, electrohydraulic push rod flexible end is provided with the mounting bracket, and mounting bracket bottom both sides all are provided with the permanent magnetism piece, and mounting bracket upper end both sides all are provided with the link, and the link bottom is provided with the material receiving box, and material receiving box bottom intercommunication is provided with the sleeve pipe, and the sleeve pipe slip cap is established collect on the box, be provided with the clearance board in the material receiving box, it is provided with the submersible pump to collect box bottom intercommunication, and the submersible pump water end is connected with the rose box.
Preferably, the inner wall of the bottom end of the isolation cover is respectively provided with a main perforation and a sealing strip, the upper end face of the magnetic suction box is correspondingly provided with a fixing screw groove and a sealing groove, a fixing bolt is inserted in the main perforation, the extending end of the fixing bolt is inserted in the fixing screw groove in a threaded manner, the sealing strip and the sealing groove are of type structures, and the sealing strip is inserted in the sealing groove.
Preferably, the two sides of the inner wall of the magnetic suction box are provided with placing boxes, and the permanent magnet blocks are inserted into the placing boxes.
Preferably, the magnetic suction box upper end both sides all are equipped with the movable hole, and the link wears in the movable hole, connect the magazine to be the funnel-shaped, the sleeve pipe bottom surface is equipped with the annular, collect the box upper end and insert and establish in the annular.
Preferably, the inner walls of the two sides of the receiving box are respectively provided with an auxiliary perforation, a stud is inserted in the auxiliary perforation, the extending end of the stud is arranged on the cleaning plate, the outer end of the cleaning plate is positioned at the outer side of the magnetic suction box, and locking nuts are sleeved outside the two ends of the stud.
Preferably, the scraper frame is provided with a guide opening, the guide opening is funnel-shaped, the guide opening is communicated with the collecting box, the bottom opening of the guide opening is connected with the water inlet end of the submersible sewage pump through a guide pipe, the water outlet end of the submersible sewage pump is connected with a conveying pipe, the water outlet end of the conveying pipe is inserted into a filter box, and the filter box is arranged on the movable vehicle body.
Preferably, the rose box upper end is the opening design, and inserts on the rose box and be equipped with the cartridge filter, cartridge filter lower part funnel form, cartridge filter upper end both sides all are equipped with the locating hole, the rose box upper end both sides correspond and are provided with the reference column, the reference column wears out in the locating hole, be provided with the filter in the cartridge filter, and the outside cover of cartridge filter is equipped with permanent magnetism cover, the rose box bottom is domatic structure, and is equipped with the outlet on the rose box bottom lateral wall.
The invention also provides a treatment method of the turbid circulating water treatment device of the steel mill, which comprises the following steps:
step one: installing and debugging a turbid circulating water treatment device;
step two: the turbid circulating water treatment device is used.
Preferably, in the first step, the fixing bolts are respectively inserted into the main through holes and the fixing screw grooves on the isolation cover and the magnetic suction box, and the sealing strips are inserted into the sealing grooves, so that the isolation cover and the magnetic suction box are connected and sealed, the permanent magnet is pushed into the placement box in the magnetic suction box by the telescopic end of the electro-hydraulic push rod through the mounting frame, the protruding amount of the stud in the auxiliary through holes is adjusted, the distance between the cleaning plate and the outer surface of the magnetic suction box is changed, the locking and fixing are performed through the locking nuts, and finally the permanent magnet sleeve is sleeved and fixed outside the filter cartridge in a threaded connection mode.
Preferably, in the second step, the magnetic substances in the iron scale are adsorbed on the outer surface of the magnetic suction box under the action of the permanent magnet blocks, the permanent magnet blocks are moved from the placement box through the mounting frame at the telescopic end of the electro-hydraulic push rod, the mounting frame drives the material receiving box and the sleeve to move upwards through the connecting frame, the cleaning plate positioned in the material receiving box cleans and scrapes the magnetic substances on the outer surface of the magnetic suction box and falls into the material guiding port, the fallen magnetic substances are discharged into the filter cartridge through the conveying pipe by the submersible sewage pump to be collected, the permanent magnet sleeve outside the filter cartridge fixes the magnetic substances, the discharged turbid circulating water is discharged from the water outlet through the filter plate, and finally the filter cartridge is taken out and cleaned through the positioning column.
Compared with the prior art, the invention has the beneficial effects that: according to the turbid circulating water treatment device and method for the steel mill, the permanent magnet blocks are used for adsorbing the iron oxide scale magnetic attraction materials in turbid circulating water to the outer surface of the magnetic attraction box, the hydraulic push rod enables the permanent magnet blocks to leave the magnetic attraction box, the iron oxide scales on the outer surface of the magnetic attraction box drop into the material guide opening under the scraping of the cleaning plate, and are discharged into the filter box for filtering through the submersible sewage pump and the conveying pipe, so that a good collecting effect is achieved on the iron oxide scales in turbid circulating water.
Drawings
FIG. 1 is a schematic elevational view of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the electro-hydraulic push rod, collection box, magnetic suction box, mounting rack, connecting rack, receiving box, sleeve and cleaning plate structure of the invention;
FIG. 4 is an enlarged schematic view of FIG. 2 at a;
FIG. 5 is an enlarged schematic view of FIG. 2 at b;
FIG. 6 is an enlarged schematic view at c of FIG. 2;
FIG. 7 is an enlarged schematic view of FIG. 2 at d;
FIG. 8 is an enlarged schematic view of FIG. 2 at e;
fig. 9 is an enlarged schematic view at f of fig. 3.
In the figure: 1 a mobile car body, 2 a scraper frame, 3 an electro-hydraulic push rod, 4 a collecting box, 5 a shielding cover, 6 a magnetic suction box, 7 a mounting frame, 8 a permanent magnet block, 9 a connecting frame, 10 a receiving box, 11 a sleeve pipe, 12 a cleaning plate, 13 a submersible sewage pump, 14 a filter box, 15 a main perforation, 16 a sealing strip, 17 a fixed spiral groove, 18 a sealing groove, 19 a fixing bolt, 20 a placing box, 21 a movable hole, 22 a ring groove, 23 an auxiliary perforation, 24 a stud, 25 a locking nut, 26 a material guiding opening, 27 a conveying pipe, 28 a filter cartridge, 29 a positioning hole, 30 a positioning column, 31 a filter plate, 32 a permanent magnet sleeve and 33 a water outlet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a turbid circulating water treatment device of a steel mill as shown in fig. 1-9, which comprises a movable car body 1 and a scraper frame 2 arranged at the lower end of the movable car body, wherein three electrohydraulic push rods 3 and a collecting box 4 are respectively welded or bolted to the side wall of the scraper frame 2 and the upper end surface of the lower part of the scraper frame, the model of the electrohydraulic push rods 3 is DYTZ450-/110, isolation covers 5 are respectively bolted or clamped to the two side walls of the electrohydraulic push rods 3, magnetic suction boxes 6 are arranged at the bottom ends of the two isolation covers 5, and the isolation covers 5 play a role in fixing the magnetic suction boxes 6 and also play a role in protecting the magnetic suction boxes 6;
the inner wall of the bottom end of the isolation cover 5 is respectively provided with a main perforation 15 and a sealing strip 16, the upper end face of the magnetic suction box 6 is correspondingly provided with a fixing screw groove 17 and a sealing groove 18, a fixing bolt 19 is inserted into the main perforation 15, the extending end thread of the fixing bolt 19 is inserted into the fixing screw groove 17, the fixing bolt 19 is convenient for mounting and dismounting the isolation cover 5 and the magnetic suction box 6, the sealing strip 16 and the sealing groove 18 are of type structures, the sealing strip 16 is inserted into the sealing groove 18, and the sealing strip 16 performs temporary sealing treatment on a gap between the isolation cover 5 and the magnetic suction box 6.
The telescopic end of the electro-hydraulic push rod 3 is welded or screwed with a mounting frame 7, and permanent magnets 8 are screwed on two sides of the bottom end of the mounting frame 7;
the box 20 is placed to equal welding in magnetic suction box 6 inner wall both sides, permanent magnetism piece 8 inserts in placing box 20, places box 20 and places permanent magnetism piece 8 temporarily, and plays the locate function to permanent magnetism piece 8 mounted position, and permanent magnetism piece 8 can carry out magnetism to the Fe3O4 in the iron scale.
The two sides of the upper end of the mounting frame 7 are welded with a connecting frame 9, the bottom end of the connecting frame 9 is welded with a material receiving box 10 or is in threaded connection with the connecting frame, a sleeve 11 is arranged at the bottom end of the material receiving box 10 in a communicating manner, the sleeve 11 is sleeved on the collecting box 4 in a sliding manner, and the bottom end of the magnetic suction box 6 is inserted into the material receiving box 10 and the sleeve 11;
the magnetic suction box 6 upper end both sides all are equipped with movable hole 21, and link 9 wears out in movable hole 21, connect magazine 10 to be the funnel form, sleeve pipe 11 bottom face is equipped with annular 22, collect box 4 upper end and insert in annular 22, sleeve pipe 11 can carry out vertical slip on collecting box 4 through annular 22 to when connecing magazine 10 vertical movement, sleeve pipe 11 follows the motion, and then carries out temporary surrounding to magnetic suction box 6.
The material receiving box 10 is internally provided with a cleaning plate 12, the bottom end of the collecting box 4 is communicated with a submersible sewage pump 13, the model of the submersible sewage pump 13 is WQD-12-0.55L1, and the water outlet end of the submersible sewage pump 13 is connected with a filter tank 14.
The inner walls of two sides of the receiving box 10 are respectively provided with a pair of through holes 23, a stud 24 is inserted into each pair of through holes 23, the extending ends of the studs 24 are welded on the cleaning plate 12, the outer ends of the cleaning plate 12 are positioned on the outer sides of the magnetic suction boxes 6, the outer parts of two ends of each stud 24 are sleeved with locking nuts 25, the extending amount of each stud 24 is conveniently adjusted through the locking nuts 25, the distance between the cleaning plate 12 and the outer surface of each magnetic suction box 6 is further adjusted, and the upper parts of the cleaning plate 12 are in a slope shape, so that the cleaned iron oxide scales can be conveniently guided and slid.
Be equipped with the guide mouth 26 on the scraper blade frame 2, the guide mouth 26 is the funnel form, and the guide mouth 26 communicates in collecting box 4, guide mouth 26 bottom opening pass through the pipe with the submersible sewage pump 13 water inlet end is connected, submersible sewage pump 13 water outlet end is connected with conveyer pipe 27, and the conveyer pipe 27 water outlet end inserts in the rose box 14, the rose box 14 bolt is in on the removal automobile body 1.
The filter box 14 upper end is open design, and has inserted cartridge filter 28 on the filter box 14, cartridge filter 28 lower part is the funnel form, cartridge filter 28 upper end both sides all are equipped with locating hole 29, the corresponding reference column 30 that is provided with in cartridge filter 14 upper end both sides, reference column 30 wears out in locating hole 29, and reference column 30 sets up and is convenient for install and tear cartridge filter 28 open, welding or spiro union have filter 31 in the cartridge filter 28, and filter 31 is non-magnetic conduction material ceramic filter, and cartridge filter 28 outside has emboliaed permanent magnetism cover 32, and permanent magnetism cover 32 is the permanent magnetism material, the filter box 14 bottom is slope structure, and is equipped with outlet 33 on the lateral wall of cartridge filter 14 bottom, and outlet 33 can be with the turbid circulating water drainage after the filtration.
The invention also provides a treatment method of the turbid circulating water treatment device of the steel mill, which comprises the following steps:
step one: installing and debugging a turbid circulating water treatment device; the fixing bolts 19 are respectively inserted into the main through holes 15 and the fixing screw grooves 17 on the isolation cover 5 and the magnetic suction box 6, the sealing strips 16 are inserted into the sealing grooves 18, the isolation cover 5 and the magnetic suction box 6 are connected and sealed, the permanent magnet 8 is pushed to enter the placement box 20 in the magnetic suction box 6 through the telescopic end of the electrohydraulic push rod 3 by the mounting frame 7, the protruding amount of the stud 24 in the auxiliary through holes 23 is adjusted, the distance between the cleaning plate 12 and the outer surface of the magnetic suction box 6 is changed, locking and fixing are carried out through the locking nuts 25, and finally the permanent magnet sleeve 32 is sleeved and fixed outside the filter cylinder 28 in a threaded mode.
Step two: the turbid circulating water treatment device is used; the magnetic substances in the iron scale are adsorbed on the outer surface of the magnetic suction box 6 under the action of the permanent magnet blocks 8, the permanent magnet blocks 8 are moved out of the placement box 20 through the telescopic end of the electro-hydraulic push rod 3 and the installation frame 7, the installation frame 7 drives the material receiving box 10 and the sleeve 11 to move upwards through the connecting frame 9, the magnetic substances on the outer surface of the magnetic suction box 6 are cleaned and scraped by the cleaning plate 12 positioned in the material receiving box 10 and fall into the material guiding port 26, the fallen magnetic substances are discharged into the filter cylinder 28 through the conveying pipe 27 by the submersible sewage pump 13 to be collected, the magnetic substances are fixed by the permanent magnet sleeve 32 outside the filter cylinder 28, the discharged turbid circulating water is discharged from the water discharging port 33 through the filter plate 31, and finally the filter cylinder 28 is taken out for cleaning through the positioning column 30.
When collecting and treating scale in turbid circulating water, a constructor firstly connects the isolation cover 5 on the outer wall of the electro-hydraulic push rod 3 through bolts, then inserts the fixing bolts 19 into the main through holes 15 and the fixing screw grooves 17 respectively, inserts the sealing strips 16 into the sealing grooves 18, temporarily fixes the magnetic suction box 6 and the isolation cover 5, then adjusts the extension amount of the studs 24 through the locking nuts 25, adjusts the distance between the cleaning plate 12 and the outer surface of the magnetic suction box 6, connects the power ends of the electro-hydraulic push rod 3 and the submersible sewage pump 13 with an external power supply, starts the electro-hydraulic push rod 3, pushes the permanent magnet blocks 8 to move into the placement box 20 through the mounting frame 7, closes the electro-hydraulic push rod 3, sleeves the permanent magnet sleeves 32 outside the filter cylinders 28 and performs bolt connection and fixation, inserts the filter cylinders 28 into the filter boxes 14, enables the positioning columns 30 to penetrate through the positioning holes 29 on the filter cylinders 28, and temporarily fixes the filter cylinders 28;
in the daily use process, the permanent magnet 8 magnetically adsorbs the iron oxide scale magnetic adsorption material on the turbid circulating water and is magnetically adsorbed on the outer surface of the magnetic adsorption box 6, the magnetic adsorption box 6 is also made of non-magnetic conduction material, an operator pushes the mounting frame 7 to move upwards through the telescopic end of the electrohydraulic push rod 3, the permanent magnet 8 is further moved upwards, the upper part of the permanent magnet 8 simultaneously drives the receiving box 10 on the connecting frame 9 to move upwards, the vertical movement of the permanent magnet 8 enables the iron oxide scale adsorbed on the outer surface of the magnetic adsorption box 6 to lose demagnetizing attraction and drop, the vertical movement of the receiving box 10 drives the cleaning plate 12 to scrape and clean the iron oxide scale on the outer surface of the magnetic adsorption box 6, the cleaned iron oxide scale falls into the material guide opening 26 through the receiving box 10 and the sleeve 11, the submersible sewage pump 13 is started, the iron oxide scale and turbid circulating water in the material guide opening 26 are discharged into the filter box 14 through the conveying pipe 27, the filter cartridge 28 in the filter box 14 filters the discharged turbid circulating water, the permanent magnet sleeve 32 positioned outside the filter cartridge 28 magnetically adsorbs the iron scale magnetic attraction material on the turbid circulating water, the turbid circulating water is discharged into the advection filter tank through the water outlet 33 under the filtration of the filter plate 31 for circulation, the permanent magnet 8 is inserted into the placement box 20 for homing through the electro-hydraulic push rod 3 after cleaning is finished, the filter cartridge 28 is taken out from the filter box 14, the permanent magnet sleeve 32 is detached, the iron scale mixture remained in the filter cartridge 28 is put into the filter box 14 again for fixing after collecting and cleaning, and the next circulation is prepared for better collection effect on the iron scale in the turbid circulating water.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. The utility model provides a turbid circulating water treatment facilities of steel mill, includes removal automobile body (1) and sets up scraper blade frame (2) at its lower extreme, its characterized in that: the utility model discloses a submersible sewage treatment device, including scraper blade frame (2), scraper blade frame, connecting frame (9), collecting box (4), electric liquid push rod (3), collecting box (4), electric liquid push rod (10), cleaning plate (12) are provided with in the telescopic end of electric liquid push rod (5), all be provided with permanent magnet (8) in mounting frame (7) bottom both sides, magnet (6) inner wall both sides all are provided with place box (20), permanent magnet (8) are inserted and are established in placing box (20), and mounting frame (7) upper end both sides all are provided with link (9), and link (9) bottom is provided with material receiving box (10), material receiving box (10) bottom intercommunication is provided with sleeve (11), sleeve (11) sliding sleeve are established on collecting box (4), be provided with clearance plate (12) in material receiving box (10), collecting box (4) bottom intercommunication is provided with dirty pump (13), and submersible pump (13) goes out water and is connected with filter tank (14);
the scraper blade frame (2) is provided with a material guide opening (26), the material guide opening (26) is funnel-shaped, the material guide opening (26) is communicated with the collecting box (4), an opening at the bottom end of the material guide opening (26) is connected with the water inlet end of the submersible sewage pump (13) through a guide pipe, the water outlet end of the submersible sewage pump (13) is connected with a conveying pipe (27), the water outlet end of the conveying pipe (27) is inserted into a filter box (14), and the filter box (14) is arranged on the mobile vehicle body (1);
the upper end of the filter box (14) is of an opening design, a filter cylinder (28) is inserted into the filter box (14), a filter plate (31) is arranged in the filter cylinder (28), a permanent magnet sleeve (32) is sleeved outside the filter cylinder (28), the bottom end of the filter box (14) is of a slope structure, and a water outlet (33) is formed in the side wall of the bottom end of the filter box (14);
the installation frame (7) drives the material receiving box (10) and the sleeve (11) to move upwards through the connecting frame (9), and the cleaning plate (12) positioned in the material receiving box (10) cleans and scrapes the magnetic substances on the outer surface of the magnetic suction box (6) and falls into the material guiding opening (26).
2. The turbid circulating water treatment device for steel mill according to claim 1, characterized in that: the utility model discloses a magnetic shield is characterized in that a main perforation (15) and a sealing strip (16) are respectively arranged on the inner wall of the bottom end of the isolation cover (5), a fixed screw groove (17) and a sealing groove (18) are correspondingly arranged on the upper end face of the magnetic suction box (6), a fixing bolt (19) is inserted in the main perforation (15), the extending end thread of the fixing bolt (19) is inserted in the fixed screw groove (17), the sealing strip (16) and the sealing groove (18) are of type structures, and the sealing strip (16) is inserted in the sealing groove (18).
3. The turbid circulating water treatment device for steel mill according to claim 1, characterized in that: the magnetic suction box is characterized in that movable holes (21) are formed in two sides of the upper end of the magnetic suction box (6), the connecting frame (9) penetrates through the movable holes (21), the material receiving box (10) is funnel-shaped, an annular groove (22) is formed in the bottom end face of the sleeve (11), and the upper end of the collecting box (4) is inserted into the annular groove (22).
4. The turbid circulating water treatment device for steel mill according to claim 1, characterized in that: the material receiving box is characterized in that auxiliary perforations (23) are formed in the inner walls of two sides of the material receiving box (10), studs (24) are inserted into the auxiliary perforations (23), the extending ends of the studs (24) are arranged on the cleaning plate (12), the outer ends of the cleaning plate (12) are located on the outer side of the magnetic suction box (6), and locking nuts (25) are sleeved outside the two ends of the studs (24).
5. The turbid circulating water treatment device for steel mill according to claim 1, characterized in that: the lower part of the filter cartridge (28) is funnel-shaped, positioning holes (29) are formed in two sides of the upper end of the filter cartridge (28), positioning columns (30) are correspondingly arranged on two sides of the upper end of the filter box (14), and the positioning columns (30) penetrate out of the positioning holes (29).
6. A method for treating a turbid circulating water treatment apparatus for a steel mill according to any one of claims 1 to 5, characterized by: the method specifically comprises the following steps:
step one: installing and debugging a turbid circulating water treatment device;
step two: the turbid circulating water treatment device is used.
7. The method for treating turbid circulating water in a steel mill according to claim 6, characterized by comprising the steps of: in the first step, fixing bolts (19) are respectively inserted into a main perforation (15) and a fixing screw groove (17) on a shielding cover (5) and a magnetic suction box (6), a sealing strip (16) is inserted into a sealing groove (18), the shielding cover (5) and the magnetic suction box (6) are connected and sealed, a permanent magnet block (8) is pushed into a placing box (20) in the magnetic suction box (6) through a telescopic end of an electrohydraulic push rod (3) through a mounting frame (7), the protruding amount of a stud (24) in a secondary perforation (23) is adjusted, the distance between a cleaning plate (12) and the outer surface of the magnetic suction box (6) is changed, the cleaning plate is locked and fixed through a locking nut (25), and finally a permanent magnet sleeve (32) is sleeved and fixed outside a filter cylinder (28) in a screwing mode.
8. The method for treating turbid circulating water in a steel mill according to claim 6, characterized by comprising the steps of: in the second step, the magnetic substances in the iron scale are adsorbed on the outer surface of the magnetic suction box (6) under the action of the permanent magnet blocks (8), the permanent magnet blocks (8) are moved out of the holding box (20) through the telescopic end of the electro-hydraulic push rod (3) by the mounting frame (7), the mounting frame (7) drives the material receiving box (10) and the sleeve (11) to move upwards through the connecting frame (9), the cleaning plate (12) positioned in the material receiving box (10) cleans and scrapes the magnetic substances on the outer surface of the magnetic suction box (6) and falls into the material guiding opening (26), the submerged pump (13) discharges the fallen magnetic substances into the filter cylinder (28) through the conveying pipe (27) to be collected, the permanent magnet sleeve (32) outside the filter cylinder (28) fixes the magnetic substances, the discharged turbid circulating water is discharged from the water outlet (33) through the connecting frame (31), and finally the filter cylinder (28) is taken out through the positioning column (30).
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