CN116536674A - Push-pull type pickling equipment for low alloy steel - Google Patents
Push-pull type pickling equipment for low alloy steel Download PDFInfo
- Publication number
- CN116536674A CN116536674A CN202310762384.XA CN202310762384A CN116536674A CN 116536674 A CN116536674 A CN 116536674A CN 202310762384 A CN202310762384 A CN 202310762384A CN 116536674 A CN116536674 A CN 116536674A
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- Prior art keywords
- side plate
- pickling
- shaft
- liquid
- acid
- Prior art date
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- 238000005554 pickling Methods 0.000 title claims abstract description 64
- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 121
- 239000002253 acid Substances 0.000 claims abstract description 90
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 238000001704 evaporation Methods 0.000 claims abstract description 36
- 230000008020 evaporation Effects 0.000 claims abstract description 32
- 239000002699 waste material Substances 0.000 claims abstract description 32
- 238000000926 separation method Methods 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 24
- 238000007790 scraping Methods 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 10
- 239000006227 byproduct Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 16
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 238000005098 hot rolling Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention belongs to the field of push-pull pickling, and particularly relates to low alloy steel push-pull pickling equipment, wherein a bottom plate is provided with a first side plate and a second side plate, two roll shafts are arranged between the second side plate and the first side plate, an evaporation cavity is formed in the roll shafts, a waste liquid collecting block is arranged on the bottom plate, a second shell is arranged on the first side plate, an acid liquid centrifugal pump is arranged on the second shell, a liquid spraying shaft is arranged in the roll shafts, a liquid spraying channel is formed in the liquid spraying shaft, a plurality of atomizing spray heads are arranged on the liquid spraying shaft, the liquid spraying channel is communicated with a pipeline of the evaporation cavity through the output end of the acid liquid centrifugal pump, a separation block is arranged in the liquid spraying shaft, the separation block is provided with a connecting and fixing block, the connecting and fixing block is fixedly connected with the second shell, the separation block is provided with a scraping shaft for scraping the wall surface of the evaporation cavity, the second side plate is provided with the first shell, the first shell and the second side plate form a separation channel, hydrochloric acid and iron can be recovered by evaporating waste acid liquid through heat energy of a hot rolling steel belt, and the accumulated and attached iron oxide in the evaporation cavity can be prevented through the scraping shaft.
Description
Technical Field
The invention belongs to the field of push-pull pickling, and particularly relates to a push-pull pickling device for low alloy steel.
Background
The hot rolled steel strip needs to be cooled before being pickled, a large amount of waste heat is generated in the process, and waste liquid generated after pickling the steel strip by hydrochloric acid used in pickling needs additional equipment for high-temperature roasting, so that iron and hydrochloric acid in the waste liquid are recovered.
The prior art has the following disadvantages:
the cooling mode of the hot rolled steel strip is unreasonable, a large amount of waste heat is generated, the waste liquid after pickling needs to be additionally heated for waste liquid recovery, the processing flow is long, and the dependency on equipment is high.
Disclosure of Invention
The invention aims at solving the problems in the prior art, and provides a low alloy steel push-pull type pickling device, wherein an evaporation cavity is arranged in a roll shaft of a hot rolled steel strip, waste acid liquid used in a pickling tank is sprayed into hydrochloric acid steam and ferric oxide after evaporation in the evaporation cavity, the hydrochloric acid steam is separated by a separation channel and then is condensed again into new acid liquid to be input into the pickling tank, and the ferric oxide on the generation wall surface of a roll shaft pair is used in the evaporation cavity to scrape and prevent accumulation.
The aim of the invention can be achieved by the following technical scheme: the push-pull type pickling equipment for the low alloy steel comprises a bottom plate and is characterized in that a first side plate is fixedly arranged on one side of one end of the bottom plate, a second side plate is fixedly arranged on the other side of the bottom plate corresponding to the first side plate, a steel belt cooling machine for cooling a hot rolled steel belt, a steel belt pretreatment machine for treating the size of the hot rolled steel belt, a plurality of pickling tanks for pickling the hot rolled steel belt, a cleaning tank for cleaning the cleaned steel belt, a steel belt post-treatment machine for finally treating the steel belt, and a roller conveyor for outputting the hot rolled steel belt are sequentially fixedly arranged on the bottom plate far away from the end, provided with the first side plate, of the bottom plate, and each pickling tank is provided with a pickling part; the acid washing part comprises two new liquid channels which are fixedly arranged on one side of the second side plate of the acid washing tank and can input acid liquid, and two acid liquid discharge ports which are fixedly arranged on one side of the first side plate of the acid washing tank and can output waste acid liquid; each pickling tank is provided with a waste liquid collecting block on one side, each pickling tank is communicated with a corresponding waste liquid collecting block through a pipeline, each waste liquid collecting block is communicated with each waste liquid collecting block through a pipeline, each pickling tank is provided with a diversion block on the other side, each new liquid channel is communicated with a diversion block corresponding to the pickling tank through a pipeline, two roll shafts are rotatably arranged between the second side plate and the first side plate, an evaporation cavity is formed in each roll shaft, the bottom plate is fixedly provided with a waste liquid collecting block beside the first side plate, one side of the first side plate, far away from the second side plate, is provided with a second shell corresponding to each roll shaft, each second shell is fixedly provided with an acid liquor centrifugal pump, each acid liquor centrifugal pump output end is communicated with the evaporation cavity through a pipeline, each acid liquor centrifugal pump input end is communicated with the waste liquid collecting block through a pipeline, the spray shaft is fixedly arranged in the roll shaft on the second shell, a spray channel is arranged in the spray shaft, a plurality of atomizing spray heads are uniformly distributed on the spray shaft, each atomizing spray head is communicated with an evaporation cavity and the spray channel, the spray channel is communicated with a pipeline of which the output end is communicated with the evaporation cavity, the spray shaft is positioned in the end, close to the second shell, of the spray shaft and is internally and rotatably provided with a separation block, the separation block is fixedly provided with a connecting and fixing block, the connecting and fixing block is fixedly connected with the second shell, the separation block is rotatably provided with a scraping shaft for scraping the wall surface of the evaporation cavity close to the bottom plate, one side, far away from the first side plate, of the second side plate is provided with a first shell, the first shell and the second side plate form a separation channel which can be communicated with each evaporation cavity, one side of the bottom plate is fixedly provided with an acid liquor condensing conveyor, the input end of the acid liquor condensing conveyor is communicated with the separating channel through a pipeline, and the output end of the acid liquor condensing conveyor is communicated with each flow dividing block.
As a preferable scheme of the invention, the pickling part further comprises that an acid liquid layer flow channel is arranged in the middle of each pickling tank, two ends of each acid liquid layer flow channel are respectively provided with an acid liquid recovery groove, the acid liquid recovery grooves are communicated with corresponding acid liquid discharge ports, two support shafts capable of supporting a steel belt are arranged at two ends of each acid liquid layer flow channel, new liquid channels are respectively arranged at the upper side and the lower side of each acid liquid layer flow channel, which are far away from the direction of the first side plate, and each new liquid channel is provided with a new liquid spray channel capable of spraying acid liquid to the direction of the first side plate in the corresponding acid liquid layer flow channel.
As a preferable scheme of the invention, the first shell is positioned in the separation channel and is fixedly provided with a plurality of supporting seats, and each supporting seat can be rotationally connected with the liquid spraying shaft and the scraping shaft at corresponding positions.
As a preferable scheme of the invention, an impeller for conveying acid liquor from an input end to an output end through rotation is rotationally arranged in the acid liquor centrifugal pump, an impeller shaft is fixedly connected with the impeller, the impeller shaft is rotationally connected with a first side plate, a second gear is fixedly arranged at one end part of the roller shaft extending out of the first side plate, a first gear is fixedly connected with the impeller shaft, the first gear is in meshed connection with the second gear, an external gear is fixedly arranged at one end surface of the roller shaft extending out of the first side plate, an internal gear is fixedly arranged at one end of the scraping shaft in the direction of the first side plate, and the external gear is in meshed connection with the internal gear.
As a preferable scheme of the invention, a byproduct collecting box capable of collecting particles falling in the separation channel is fixedly arranged below the first shell, and inert liquid which does not react with acid liquid and the particles is arranged in the byproduct collecting box.
As a preferable scheme of the invention, a plurality of scrapers are uniformly and fixedly distributed on the roll shaft along the circumferential direction, an entering angle capable of scraping particles into the roll shaft at a certain angle is arranged at one end of the front part of each scraper in the circumferential direction, a blocking angle capable of preventing particles from falling out of a gap between each scraper directly at a certain angle is arranged at the other end of each scraper in the circumferential direction, and the entering angle and the blocking angle of each scraper are spiral.
As a preferable scheme of the invention, a scraper rib plate which can move particles to the direction of the second side plate in a rotating way with a certain spiral angle is fixedly connected between each scraper and the roll shaft.
Compared with the prior art, the push-pull type acid washing equipment for the low alloy steel has the following advantages:
the heat energy of the hot rolled steel strip can be fully used, no extra equipment is needed for treating the waste liquid, and the processing flow and the dependency on equipment are reduced.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a side view of the body of the present invention.
Fig. 3 is a perspective view of the present invention.
FIG. 4 is a perspective cross-sectional view of the relevant part of the pickling tank of the present invention.
Fig. 5 is a side view of a portion of the components of the present invention.
Fig. 6 is a cross-sectional view at B-B in fig. 5.
Fig. 7 is a perspective view of the gear-related components of the present invention.
Fig. 8 is a cross-sectional view at C-C in fig. 6.
Fig. 9 is a perspective view of the wiper shaft.
Fig. 10 is a partial enlarged view at D of fig. 9.
In the figure: the device comprises a bottom plate 10, a first side plate 11, a second side plate 48, a steel strip cooling machine 12, a steel strip pretreatment machine 13, a pickling tank 14, a steel strip cleaning tank 15, a steel strip post-treatment machine 16, a roller conveyor 17, a new liquid channel 28, an acid liquid discharge port 47, a waste liquid collecting block 18, a shunt block 23, a roll shaft 29, an evaporation chamber 38, a waste liquid collecting block 19, a second housing 30, an acid liquid centrifugal pump 40, a liquid spraying shaft 35, a liquid spraying channel 36, an atomizer 37, a partition block 49, a fixed block 46, a scraping shaft 43, a first housing 21, a separation channel 52, an acid liquid condensing conveyor 22, an acid liquid flow channel 26, an acid liquid recovery tank 24, a rotating shaft 25, a new liquid spraying channel 27, a plurality of supporting seats 39, an impeller 31, an impeller shaft 32, a second gear 34, a first gear 33, an external gear 42, an internal gear 41, a byproduct collecting box 20, a scraping plate 44, an inflow angle 50, a blocking angle 51, and a rib 45.
Detailed Description
The invention aims at providing an anti-vibration ohm hoop processing machine tool, which is characterized in that after a hoop is transmitted by using a conveyor belt and then is arranged on a working area by using a mechanical arm, the rubber belt is bent and attached by using a side wheel, when the rim of the side wheel contacts the rubber belt, a main rubber belt can be clamped by a groove formed in the rim of the side wheel, so that slipping is prevented when the rim of the side wheel contacts the rubber belt, the rubber belt can be acted by lines on the annular surface while the rubber belt is bent in a wheel shape, the position of the rubber belt is not deviated when the rubber belt is bent and attached, and the mechanical arm returns the completed ohm hoop to the conveyor belt after the attachment of the rubber belt is completed.
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
It should be noted that, the terms upper and lower are defined in fig. 1 to 10 by the positions of the components in the drawings and the positions of the components with respect to each other, and are only used for the sake of clarity and convenience in expressing the technical solutions. It should be understood that the use of directional terms herein should not be construed to limit the scope of the application as claimed.
Embodiment one:
as shown in fig. 1 to 3 and fig. 5 to 8, as an embodiment of the present invention, a push-pull type pickling apparatus for low alloy steel comprises a bottom plate 10, and is characterized in that a first side plate 11 is fixedly arranged on one side of one end of the bottom plate 10, a second side plate 48 is fixedly arranged on the other side of the bottom plate 10 corresponding to the first side plate 11, a steel strip cooling machine 12 for cooling a hot rolled steel strip, a steel strip pretreatment machine 13 for treating the size of the hot rolled steel strip, a plurality of pickling tanks 14 for pickling the hot rolled steel strip, a steel strip cleaning tank 15 for cleaning the pickled steel strip, a steel strip post-treatment machine 16 for treating the steel strip, and a roller conveyor 17 for outputting the hot rolled steel strip are fixedly arranged on one end of the bottom plate 10, which is far from the end of the bottom plate 10, and a pickling section is arranged on each pickling tank 14; the pickling part comprises a pickling tank 14, two new liquid channels 28 which can be used for inputting acid liquid are fixedly arranged on one side of a second side plate 48, and two acid liquid discharge ports 47 which can be used for outputting the acid liquid are fixedly arranged on one side of the pickling tank 14, which is positioned on the first side plate 11; a waste liquid collecting block 18 is arranged on one side of each pickling tank 14, an acid liquid outlet 47 of each pickling tank 14 is communicated with the corresponding waste liquid collecting block 18 through a pipeline, the waste liquid collecting block 19 is communicated with each waste liquid collecting block 18 through a pipeline, a flow dividing block 23 is arranged on the other side of each pickling tank 14, each new liquid channel 28 is communicated with the flow dividing block 23 of the corresponding pickling tank 14 through a pipeline, two roll shafts 29 are rotatably arranged between a second side plate 48 and a first side plate 11, an evaporation cavity 38 is arranged in each roll shaft 29, a waste liquid collecting block 19 is fixedly arranged beside the first side plate 11, a second shell 30 is arranged on one side of the first side plate 11 far away from the second side plate 48 and corresponding to each roll shaft 29, an acid liquid centrifugal pump 40 is fixedly arranged on each second shell 30, the output end of each acid liquid centrifugal pump 40 is communicated with the evaporation cavity 38 through a pipeline, the input end of each acid liquor centrifugal pump 40 is communicated with the waste liquor collecting block 19 by using a pipeline, a liquid spraying shaft 35 is fixedly arranged in a roll shaft 29 on the second shell 30, a liquid spraying channel 36 is arranged in the liquid spraying shaft 35, a plurality of atomizing spray heads 37 are uniformly distributed on the liquid spraying shaft 35, each atomizing spray head 37 is communicated with an evaporating cavity 38 and the liquid spraying channel 36, the liquid spraying channel 36 is communicated with the pipeline of each acid liquor centrifugal pump 40, the output end of each acid liquor centrifugal pump 40 is communicated with the evaporating cavity 38, the liquid spraying shaft 35 is positioned in the inner part near one end of the second shell 30 and is rotationally provided with a separation block 49, the separation block 49 is fixedly provided with a connecting and fixing block 46, the connecting and fixing block 46 is fixedly connected with the second shell 30, the separation block 49 is rotationally provided with a scraping shaft 43 near the bottom plate 10, the second side plate 48 is positioned at one side far away from the first side plate 11 and is provided with a first shell 21, the first shell 21 and the second side plate 48 form a separation channel 52 which can be communicated with each evaporating cavity 38, the bottom plate 10 is fixedly provided with an acid liquor condensing conveyor 22 on the side provided with the second side plate 48, the input end of the acid liquor condensing conveyor 22 is communicated with the separating channel 52 by using a pipeline, and the output end of the acid liquor condensing conveyor 22 is communicated with each of the dividing blocks 23, wherein the steel belt cooling machine 12, the steel belt pretreatment machine 13, the steel belt cleaning pool 15, the steel belt post-treatment machine 16, the roller conveyor 17 and the acid liquor condensing conveyor 22 are not repeated in the prior art.
In operation, hot rolled steel strip passes through the two rollers 29 between the first side plate 11 and the second side plate 48, then is cooled at the steel strip cooling machine 12, then is processed in the steel strip pretreatment machine 13 to be shaped, sized and the like, and then enters the pickling tanks 14 for pickling, residual acid liquid on the steel strip is cleaned in the steel strip cleaning tank 15 after pickling is completed, and then is output from the roller conveyor 17 after final size cutting, oiling and the like of the steel strip is completed in the steel strip post-treatment machine 16.
When the waste acid flows out from two acid liquid discharge ports 47 on the pickling tank 14 and is converged into the waste liquid converging block 18, and is converged into the waste liquid converging block 19 through a pipeline, and is sprayed into the evaporation cavity 38 in the roll shaft 29 through the acid centrifugal pump 40 and the plurality of atomizing nozzles 37 in the spray shaft 35 and communicated with the spray channels 36, as the hot rolled steel strip heats the roll shaft 29 when passing through the roll shaft 29, the waste liquid is evaporated into hydrochloric acid vapor in the evaporation cavity 38, the hydrochloric acid vapor is continuously increased and then flows from the evaporation cavity 38 to the separation channel 52, and then passes through the pipeline to be condensed into new acid in the acid liquid condensing conveyor 22, and then is conveyed to the diversion blocks 23 through the pipeline to be diverted and then re-enters the pickling tank 14,
when the waste liquid evaporates in the evaporation chamber 38, the dissolved iron is changed into iron oxide particles, and the iron oxide particles adhere to the wall surface of the evaporation chamber 38, and then the particles on the wall surface are scraped off by the roller shaft 29.
Embodiment two:
as shown in fig. 4, as a further embodiment of the present invention, on the basis of the foregoing embodiment, the pickling section further includes, in each pickling tank 14, an acid liquid layer flow channel 26 disposed in the middle, each acid liquid layer flow channel 26 having two ends provided with an acid liquid recovery tank 24, each acid liquid recovery tank 24 being connected to a corresponding acid liquid outlet 47, two support shafts 25 capable of supporting a steel strip being disposed at two ends of each acid liquid layer flow channel 26, each acid liquid layer flow channel 26 having two upper and lower sides, in a direction away from the first side plate 11, provided with a new liquid channel 28, each new liquid channel 28 having a new liquid spray channel 27 capable of spraying an acid liquid in a direction toward the first side plate 11 in the corresponding acid liquid layer flow channel 26.
In operation, the acid solution is split from the splitting block 23 to the new solution channel 28, and then forms an acid solution layer on the surface of the new solution spray channel 27 against the moving direction of the steel strip, and the acid solution flowing back and forth flows into the two acid solution recovery tanks 24 along with the continuous spraying of the acid solution, and then flows out from the acid solution outlet 47.
As shown in fig. 8, the first housing 21 is fixedly provided with a plurality of supporting seats 39 in the separation path 52, and each supporting seat 39 can be rotatably connected with the liquid spraying shaft 35 and the scraping shaft 43 at corresponding positions.
In operation, the support seat 39 can support the liquid spraying shaft 35 and the scraping shaft 43, and prevent the roller shaft 29 from being damaged by collision.
As shown in fig. 6-8, the acid centrifugal pump 40 is rotatably provided with an impeller 31 for conveying acid from an input end to an output end through rotation, the impeller 31 is fixedly connected with an impeller shaft 32, the impeller shaft 32 is rotatably connected with the first side plate 11, an end part of one end of the roller shaft 29 extending out of the first side plate 11 is fixedly provided with a second gear 34, the impeller shaft 32 is fixedly connected with a first gear 33, the first gear 33 is in meshed connection with the second gear 34, an end surface of one end of the roller shaft 29 extending out of the first side plate 11 is fixedly provided with an external gear 42, one end of the scraping shaft 43, which is positioned in the direction of the first side plate 11, is fixedly provided with an internal gear 41, the external gear 42 is in meshed connection with the internal gear 41, and the impeller 31 is not repeated in the prior art.
When the steel strip passes through the roll shaft 29 in operation, after the roll shaft 29 is driven to rotate, the second gear 34 at the end part of the roll shaft 29 drives the first gear 33, then the impeller shaft 32 on the impeller 31 finishes conveying acid liquor under the rotation of the first gear 33, and the inner gear 41 on the scraping shaft 43 is meshed with the outer gear 42 arranged on the roll shaft 29 in an inner way and then rotates reversely with the roll shaft 29, so that particles can be scraped better.
As shown in fig. 8, a by-product collection tank 20 for collecting particles falling in the separation path 52 is fixedly provided below the first housing 21, and an inert liquid which does not react with the acid liquid and the particles is provided in the by-product collection tank 20.
In operation, scattered particles in the evaporation chamber 38 move from the evaporation chamber 38 to the separation channel 52 as they continuously rotate, and the iron oxide particles fall into the byproduct collecting tank 20, and meanwhile, the inert liquid provided in the byproduct collecting tank 20 blocks the hydrochloric acid vapor to prevent redissolution of the iron oxide particles.
Embodiment III:
as shown in fig. 9 to 10, as a further embodiment, in addition to the first and second embodiments, the roller 29 is uniformly and fixedly provided with a plurality of scrapers 44 in the circumferential direction, one end of the front side of each scraper 44 in the circumferential direction is provided with an entrance angle 50 capable of scraping particles in at a certain angle, the other end of each scraper 44 in the circumferential direction is provided with a blocking angle 51 capable of preventing particles from falling out directly from the gap between each scraper 44 at a certain angle, and the entrance angle 50 and the blocking angle 51 of each scraper 44 are spiral.
In operation, the entrance angle 50 and the blocking angle 51 at the two ends of the scraper 44 can continuously scrape the wall surface of the evaporation cavity 38 and prevent scraped iron oxide particles from falling out of the evaporation cavity.
As shown in fig. 9-10, a scraper rib 45 having a certain spiral angle capable of moving the particles in the direction of the second side plate 48 by rotating is fixedly connected between each scraper 44 and the roller shaft 29.
In operation, each scraper rib 45 in the chamber formed by the plurality of scrapers 44 can stably support each scraper 44 and simultaneously transport the iron oxide particles therein into the separating channel 52 by spiral.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.
Claims (7)
1. The push-pull type pickling equipment for the low alloy steel comprises a bottom plate (10), and is characterized in that a first side plate (11) is fixedly arranged on one side of one end of the bottom plate (10), a second side plate (48) is fixedly arranged on the other side of the bottom plate (10) corresponding to the first side plate (11), a steel belt cooling machine (12) for cooling a hot rolled steel belt, a steel belt pretreatment machine (13) for treating the size of the hot rolled steel belt, a plurality of pickling tanks (14) for pickling the hot rolled steel belt, a steel belt cleaning tank (15) for cleaning the pickled steel belt, a steel belt post-treatment machine (16) for final treatment of the steel belt and a roller conveyor (17) for outputting the hot rolled steel belt are fixedly arranged on the bottom plate (10) far away from the end direction of the bottom plate (10) provided with the first side plate (11), and a pickling part is arranged on each pickling tank (14); the pickling part comprises two new liquid channels (28) which can be used for inputting acid liquid and are fixedly arranged on one side of the second side plate (48) of the pickling tank (14), and two acid liquid discharge ports (47) which can be used for outputting the acid liquid and are fixedly arranged on one side of the first side plate (11) of the pickling tank (14); each pickling tank (14) one side is provided with a waste liquid collecting block (18), each pickling tank (14) acid liquor discharge outlet (47) and corresponding waste liquid collecting block (18) are communicated through a pipeline, each waste liquid collecting block (19) and each waste liquid collecting block (18) are communicated through a pipeline, each pickling tank (14) other side is provided with a flow dividing block (23), each new liquor channel (28) and the corresponding pickling tank (14) flow dividing block (23) are communicated through a pipeline, two roller shafts (29) are rotatably arranged between a second side plate (48) and a first side plate (11), each roller shaft (29) is internally provided with an evaporation cavity (38), a bottom plate (10) is positioned beside the first side plate (11), one side of the first side plate (11) is far away from the second side plate (48) and is correspondingly provided with a second shell (30), each second shell (30) is fixedly provided with a centrifugal pump (40), each centrifugal pump (40) is fixedly provided with a centrifugal pump (29), each evaporation cavity (40) is positioned at one side of the first side plate (11) and is communicated with the second side plate (29) through the centrifugal pump (35), the inside hydrojet way (36) of seting up of hydrojet axle (35), evenly distributed is provided with a plurality of atomizer (37) on hydrojet axle (35), every atomizer (37) intercommunication evaporation chamber (38) and hydrojet way (36), hydrojet way (36) and every acidizing fluid centrifugal pump (40) output communicate the pipeline intercommunication of evaporation chamber (38), hydrojet axle (35) are located and are close second casing (30) one end inside rotation and are provided with separation piece (49), separation piece (49) fixed connection fixed block (46) are provided with, connect fixed block (46) and second casing (30) fixed connection, separation piece (49) are close bottom plate (10) position rotation and are provided with scrape shaft (43) of scraping evaporation chamber (38) wall, second curb plate (48) are located and are provided with first casing (21) in one side of keeping away from first curb plate (11), first casing (21) and second curb plate (48) form separation piece (52) that can communicate with every evaporation chamber (38), be equipped with second curb plate (22) and be provided with condenser (22) and carry-in pipeline (22), the output end of the acid liquor condensing conveyor (22) is communicated with each flow dividing block (23).
2. The push-pull type pickling device for low alloy steel according to claim 1, wherein the pickling part further comprises an acid liquid layer flow channel (26) arranged in the middle of each pickling tank (14), acid liquid recovery grooves (24) are respectively formed in two ends of each acid liquid layer flow channel (26), the acid liquid recovery grooves (24) are communicated with corresponding acid liquid discharge ports (47), two support shafts (25) capable of supporting steel belts are arranged at two ends of each acid liquid layer flow channel (26), new liquid channels (28) are respectively formed in the upper side and the lower side of each acid liquid layer flow channel (26) which are far away from the direction of the first side plate (11), and new liquid spray channels (27) capable of spraying acid liquid to the direction of the first side plate (11) in the corresponding acid liquid layer flow channel (26) are formed in each new liquid channel (28).
3. A push-pull pickling plant for low alloy steel according to claim 1, characterised in that the first housing (21) is provided with a plurality of support seats (39) fixed in the separating channel (52), each support seat (39) being able to be connected in rotation with the liquid spraying shaft (35) and the scraping shaft (43) in corresponding positions.
4. The low alloy steel push-pull pickling device according to claim 1, wherein an acid liquor centrifugal pump (40) is rotationally arranged to convey acid liquor to an impeller (31) at an output end from an input end through rotation, the impeller (31) is fixedly connected with an impeller shaft (32), the impeller shaft (32) is rotationally connected with a first side plate (11), a second gear (34) is fixedly arranged at one end part of a roll shaft (29) extending out of the first side plate (11), a first gear (33) is fixedly connected to the impeller shaft (32), the first gear (33) is in meshed connection with the second gear (34), an external gear (42) is fixedly arranged at one end face of the roll shaft (29) extending out of the first side plate (11), an internal gear (41) is fixedly arranged at one end of the scraping shaft (43) in the direction of the first side plate (11), and the external gear (42) is in meshed connection with the internal gear (41).
5. A push-pull pickling device for low alloy steel according to claim 1 is characterized in that a byproduct collecting box (20) capable of collecting particles falling in a separation channel (52) is fixedly arranged below the first shell (21), and inert liquid which does not react with acid liquid and particles is arranged in the byproduct collecting box (20).
6. The push-pull type pickling device for low alloy steel according to claim 1, wherein a plurality of scrapers (44) are uniformly and fixedly distributed on the roll shaft (29) along the circumferential direction, an entering angle (50) capable of scraping particles into the scrapers (44) at a certain angle is formed in one end in the front of the circumferential direction of each scraper, a blocking angle (51) capable of preventing particles from falling out directly from gaps between each scraper (44) at a certain angle is formed in the other end of each scraper (44), and the entering angle (50) and the blocking angle (51) of each scraper (44) are spiral.
7. A push-pull pickling plant for low alloy steel according to claim 6 characterised in that a scraper rib (45) is fixedly connected between each scraper (44) and the roll shaft (29) at a spiral angle for rotating the particles in the direction of the second side plate (48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310762384.XA CN116536674A (en) | 2023-06-27 | 2023-06-27 | Push-pull type pickling equipment for low alloy steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310762384.XA CN116536674A (en) | 2023-06-27 | 2023-06-27 | Push-pull type pickling equipment for low alloy steel |
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| Publication Number | Publication Date |
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| CN116536674A true CN116536674A (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310762384.XA Pending CN116536674A (en) | 2023-06-27 | 2023-06-27 | Push-pull type pickling equipment for low alloy steel |
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|---|---|---|---|---|
| GB1285083A (en) * | 1969-07-02 | 1972-08-09 | Environmental Technology | Regenerative plant for waste pickle liquor |
| JPH07268672A (en) * | 1994-03-31 | 1995-10-17 | Nisshin Steel Co Ltd | Continuous pickling device |
| CN201010528Y (en) * | 2007-03-06 | 2008-01-23 | 天津市聚鑫源水处理技术开发有限公司 | Processing system for recycling ferrous chloride crystal and hydrochloric acid from hydrochloric acid waste liquid |
| CN111607800A (en) * | 2020-06-24 | 2020-09-01 | 江苏苏讯新材料科技有限公司 | Stainless steel strip hydrochloric acid pickling circulation system and method thereof |
| CN114574870A (en) * | 2022-02-23 | 2022-06-03 | 宁波渤川废液处置有限公司 | Waste acid treatment automatic control system |
| CN115747818A (en) * | 2022-12-02 | 2023-03-07 | 湖南菱瑞新材料科技有限公司 | Novel high-efficient plug-type pickling device |
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2023
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|---|---|---|---|---|
| GB1285083A (en) * | 1969-07-02 | 1972-08-09 | Environmental Technology | Regenerative plant for waste pickle liquor |
| JPH07268672A (en) * | 1994-03-31 | 1995-10-17 | Nisshin Steel Co Ltd | Continuous pickling device |
| CN201010528Y (en) * | 2007-03-06 | 2008-01-23 | 天津市聚鑫源水处理技术开发有限公司 | Processing system for recycling ferrous chloride crystal and hydrochloric acid from hydrochloric acid waste liquid |
| CN111607800A (en) * | 2020-06-24 | 2020-09-01 | 江苏苏讯新材料科技有限公司 | Stainless steel strip hydrochloric acid pickling circulation system and method thereof |
| CN114574870A (en) * | 2022-02-23 | 2022-06-03 | 宁波渤川废液处置有限公司 | Waste acid treatment automatic control system |
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