CN217997342U - Pretreatment device for oxidation layer of substrate of hot-dip coating production line - Google Patents
Pretreatment device for oxidation layer of substrate of hot-dip coating production line Download PDFInfo
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- CN217997342U CN217997342U CN202222297040.XU CN202222297040U CN217997342U CN 217997342 U CN217997342 U CN 217997342U CN 202222297040 U CN202222297040 U CN 202222297040U CN 217997342 U CN217997342 U CN 217997342U
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Abstract
The utility model discloses a hot dipping production line base plate oxide layer preprocessing device, liquid case pass through the soft pipe and the delivery pump connects the stereoplasm spray tube, and the stereoplasm spray tube is installed in the frame and is close to steel sheet tow sides, and the stereoplasm spray tube has a large amount of jet orifices, and the jet orifice aims at the steel sheet face of waiting to wash; the front and back surfaces of the frame, which are attached to the steel plate, are also provided with wringing rollers which can roll along the surface of the steel plate and are used for wringing acidic feed liquid; and a material tray is arranged on the rack below the hard spray pipe and the squeezing roller and used for collecting acidic material liquid, and the lower part of the material tray is connected with a liquid box through a recovery pipe and used for recovering the material liquid. The beneficial effects of the utility model are that, can eliminate the oxide layer of face, solve because the hot dipping that the base plate oxidation leads to plates the off-the-shelf hourglass of hot dipping and plates with the thick limit problem, promote product quality. Meanwhile, the device can realize the recycling of the acid reagent, reduce the amount of the reagent and has obvious effect on reducing the production cost.
Description
Technical Field
The utility model belongs to the technical field of coil of strip processing, a line base plate oxide layer preprocessing device is produced in hot dipping is related to.
Background
The yellowing of the hard rolled edge of the steel plate is slow oxidation generated at high temperature, because the antioxidant in the emulsion plays a role below 120 ℃ of plate temperature, when the current six-roller reversible rolling mill is in the specification of rolling the steel plate with the thickness of below 0.25mm and the production speed reaches above 950m/min, the plate temperature of the steel coil below the machine can reach above 120 ℃, and the antioxidant basically loses effect, which is a current technical problem and is difficult to overcome.
Since the alkaline reagent reacts very slowly with the metal oxide, the acidic reagent reacts more rapidly with the metal oxide. Therefore, the surface of the steel plate is pre-cleaned by adopting an acid reagent to eliminate an oxide layer on the surface of the steel plate. Therefore, a pretreatment device for the substrate oxidation layer in the hot dip coating production line needs to be designed.
Disclosure of Invention
The utility model discloses a remedy prior art not enough, provide a simple structure, convenient to use's hot dipping production line base plate oxide layer preprocessing device, solve that the preliminary treatment alkali point is low, the furnace temperature is low and cold rolling base plate has the limit portion that produces when having the oxidation of limit portion to leak to plate, the thick limit problem.
The utility model adopts the technical proposal that:
the utility model discloses a hot dipping production line base plate oxide layer preprocessing device, its characterized in that: the liquid tank is connected with a hard spray pipe through a soft conduit and a delivery pump, the hard spray pipe is arranged on the rack and close to the front surface and the back surface of the steel plate, the hard spray pipe is provided with a large number of spray holes, and the spray holes are aligned to the surface of the steel plate to be cleaned; the machine frame is also provided with squeezing rollers attached to the front and the back of the steel plate, and the squeezing rollers can roll along the surface of the steel plate and are used for squeezing acidic feed liquid; and a material tray is arranged on the rack below the hard spray pipe and the squeezing roller and used for collecting acidic material liquid, and the lower part of the material tray is connected with a liquid box through a recovery pipe and used for recovering the material liquid.
The outer part of the wringing roller is made into a roller main body by adopting polyurethane with the Shore hardness of 67-73; the roller main body is sleeved outside the shaft core and is bonded or cast and fixed together, the shaft core inside the wringing roller adopts a metal shaft core, and two ends of the shaft core are arranged on the rack through bearings.
The shaft core of the wringing roller is provided with a convex edge 11 to prevent the roller main body and the shaft core from rotating relatively; the rib is welded on the shaft core, or the rib and the shaft core are integrally manufactured.
An electric heating pipe is arranged in the liquid tank, an electronic thermometer is arranged outside the liquid tank, and the acidic liquid is heated to 32-37 ℃.
The jet holes on the hard spray pipe comprise a left row and a right row, the included angle between the two rows of jet holes and the central line of the hard spray pipe is 90 degrees, and the two rows of jet holes are distributed in a staggered manner.
The running speed of the steel plate passing through the drying roll is 20-25 m/min.
The liquid tank is a storage container for storing the acidic reagent; the delivery pump is a power device of the whole equipment and is used for guiding the acidic reagent into the hard spray pipe; spray holes of the hard spray pipes are concentrated on two sides of the steel plate and are aligned with the steel plate, and the acid reagent is sprayed to the surface of the steel plate through the hard spray pipes; the squeezing roller is used for squeezing the acidic reagent on the plate surface, so that the phenomenon that the excessive acidic reagent corrodes a production line roller system is avoided; the tray is used for collecting the acid reagent dripped in the squeezing process, so that the reagent flows back to the liquid tank through the recovery pipe for secondary use.
The beneficial effects of the utility model are that, increase a face in advance belt cleaning device and use acid reagent to wash the face at production line prozone, can eliminate the oxide layer of face like this, solve because the hot dipping that the base plate oxidation leads to plates off-the-shelf hourglass of finished product and plates with the thick limit problem, promote product quality. Meanwhile, the device can realize the cyclic reuse of the acid reagent, reduce the amount of the reagent and has obvious effect on reducing the production cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention. FIG. 2 is a schematic cross-sectional view of a wringing roller and a rigid spout. Fig. 3 is a schematic external view of the hard nozzle, and fig. 4 is an enlarged schematic cross-sectional view of the hard nozzle.
In the figure, a liquid tank 1, a delivery pump 2, a material tray 3, a hard spray pipe 4, a drying roller 5, a soft guide pipe 6 and a steel plate 7 are arranged. 8 cores, 9 roller bodies, 10 spray holes and 11 ribs. 12 electric heating tube, 13 electronic thermometer.
Detailed Description
The attached drawing is a concrete embodiment of the utility model.
The utility model discloses a hot dipping production line base plate oxide layer preprocessing device, liquid case 1 pass through soft pipe 6 and delivery pump 2 and connect stereoplasm spray tube 4, and the stereoplasm spray tube is installed in the frame and is close to steel sheet 7 just two sides, and stereoplasm spray tube has a large amount of jet orifices 10, and the jet orifice aims at the steel sheet face of waiting to wash; the front and back surfaces of the frame, which are attached to the steel plate, are also provided with wringing rollers 5, and the wringing rollers can roll along the surface of the steel plate and are used for wringing acidic feed liquid; and a material tray 3 is arranged on the rack below the hard spray pipe and the squeezing roller and used for collecting acidic material liquid, and the lower part of the material tray is connected with a liquid box through a recovery pipe and used for recovering the material liquid.
The outer part of the wringing roller is made into a roller main body 9 by adopting polyurethane with the Shore hardness of 67-73; the roller main body is sleeved outside the shaft core 8 and is fixedly bonded or cast together, the shaft core inside the wringing roller adopts a metal shaft core, and two ends of the shaft core are arranged on the rack through bearings.
The shaft core of the wringing roller is provided with a convex edge 11 to prevent the roller main body and the shaft core from rotating relatively; the convex edge is welded on the shaft core, or the convex edge and the shaft core are integrally manufactured.
An electric heating tube 12 is arranged in the liquid tank, an electronic thermometer 13 is arranged outside the liquid tank, and the acidic liquid is heated to 32-37 ℃.
The jet holes on the hard spray pipe comprise a left row and a right row, the included angle between the two rows of jet holes and the central line of the hard spray pipe is 90 degrees, and the two rows of jet holes are distributed in a staggered manner.
The running speed of the steel plate passing through the wringing roller is 20-25 m/min.
The liquid box is a storage container for storing the acidic reagent; the delivery pump is a power device of the whole equipment and is used for guiding the acidic reagent into the hard spray pipe; spray holes of the hard spray pipes are concentrated on two sides of the steel plate and are aligned with the steel plate, and the acid reagent is sprayed to the surface of the steel plate through the hard spray pipes; the squeezing roller is used for squeezing the acidic reagent on the plate surface, so that the phenomenon that the excessive acidic reagent corrodes a production line roller system is avoided; the material tray is used for collecting the acid reagent dripped in the squeezing process, so that the reagent flows back to the liquid tank through the recovery pipe for secondary use.
The hard spray pipe, the squeezing roller, the pressure pump, the material tray, the liquid tank and the electric heating pipe are all made of materials which are not easy to be corroded by acid reagents.
The utility model discloses a hot dip coating production line base plate oxide layer preprocessing device adds a short simple and easy degrease at the prozone of hot dip coating production line and removes oxidation unit washing section, and the washing section contains stereoplasm spray tube, wringing roller, force pump, charging tray, liquid case quintuple. The hard spray pipe is used as a spraying device, and the squeezing roller is used as a squeezing device.
The utility model discloses a hot dip coating production line base plate oxide layer preprocessing device carries out the face preliminary treatment for the prevention produces the hourglass and plates and the uplift when hot dip coating steel sheet base plate limit portion oxidation (yellow), including five kinds of devices of stereoplasm spray tube, wringing roller, delivery pump, charging tray, liquid tank and assist a hot dip coating production line operation in-process plate surface oxidation preprocessing device that acid reagent formed.
The pretreatment method comprises the following steps:
the first step is as follows: blending the stock solution of the acidic reagent with water according to a certain proportion, and pouring the blended stock solution into a liquid tank 1;
the second step is that: leading the acid reagent into a hard spray pipe 4 through a delivery pump 2;
the third step: spraying an acid reagent on the surface of the steel plate through a hard spray pipe;
the fourth step: the wringing roller 5 wrings the board surface acid reagent;
the fifth step: the tray 3 will collect the squeezed and dropped acidic reagent and transport it back to the liquid tank 1 again.
Claims (7)
1. A hot dipping production line base plate oxide layer preprocessing device which characterized in that: the liquid tank is connected with a hard spray pipe through a soft conduit and a delivery pump, the hard spray pipe is arranged on the rack and close to the front surface and the back surface of the steel plate, the hard spray pipe is provided with a large number of spray holes, and the spray holes are aligned to the surface of the steel plate to be cleaned; the front and back surfaces of the frame, which are attached to the steel plate, are also provided with wringing rollers which can roll along the surface of the steel plate and are used for wringing acidic feed liquid; and a material tray is arranged on the rack below the hard spray pipe and the squeezing roller and used for collecting acidic material liquid, and the lower part of the material tray is connected with a liquid box through a recovery pipe and used for recovering the material liquid.
2. The apparatus for pretreating an oxide layer of a substrate in a hot dip coating line according to claim 1, wherein: the outer part of the wringing roller is made into a roller main body by adopting polyurethane with the Shore hardness of 67-73; the roller main body is fixed on the outer side of the shaft core, the shaft core in the wringing roller adopts a metal shaft core, and two ends of the shaft core are arranged on the frame through bearings.
3. The apparatus for pretreating an oxide layer of a substrate in a hot dip coating line according to claim 2, wherein: the shaft core of the wringing roller is provided with a convex edge to prevent the roller main body and the shaft core from rotating relatively; the convex edge is welded on the shaft core, or the convex edge and the shaft core are integrally manufactured.
4. The apparatus for pretreating an oxidized layer of a substrate for a hot dip coating line according to claim 1 or 2, wherein: an electric heating pipe is arranged in the liquid tank, an electronic thermometer is arranged outside the liquid tank, and the acidic liquid is heated to 32-37 ℃.
5. The apparatus for pretreating an oxidized layer of a substrate for a hot dip coating line according to claim 1 or 2, wherein: the running speed of the steel plate passing through the drying roll is 20-25 m/min.
6. The apparatus for pretreating an oxidized layer of a substrate for a hot dip coating line according to claim 1 or 2, wherein: the jet holes on the hard spray pipe comprise a left row and a right row, the included angle between the two rows of jet holes and the central line of the hard spray pipe is 90 degrees, and the two rows of jet holes are distributed in a staggered manner.
7. The apparatus for pretreating an oxidized layer of a substrate for a hot dip coating line according to claim 1 or 2, wherein: the liquid box is a storage container for storing the acidic reagent; the delivery pump is a power device of the whole equipment and is used for guiding the acidic reagent into the hard spray pipe; spray holes of the hard spray pipes are concentrated on two sides of the steel plate and are aligned with the steel plate, and the acid reagent is sprayed to the surface of the steel plate through the hard spray pipes; the squeezing roller is used for squeezing the acidic reagent on the plate surface, so that the phenomenon that the excessive acidic reagent corrodes a production line roller system is avoided; the tray is used for collecting the acid reagent dripped in the squeezing process, so that the reagent flows back to the liquid tank through the recovery pipe for secondary use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222297040.XU CN217997342U (en) | 2022-08-31 | 2022-08-31 | Pretreatment device for oxidation layer of substrate of hot-dip coating production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222297040.XU CN217997342U (en) | 2022-08-31 | 2022-08-31 | Pretreatment device for oxidation layer of substrate of hot-dip coating production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217997342U true CN217997342U (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222297040.XU Active CN217997342U (en) | 2022-08-31 | 2022-08-31 | Pretreatment device for oxidation layer of substrate of hot-dip coating production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217997342U (en) |
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2022
- 2022-08-31 CN CN202222297040.XU patent/CN217997342U/en active Active
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