An emulsion jet device

Abstract

The present application relates to a kind of emulsion injection devices, including support;Two groups of working rollers are rotatably connected in the middle of the support;Four groups of emulsion delivery pipes are fixedly connected on the support;There is a group of emulsion delivery pipes on the two sides of each group of working rollers;A plurality of first spray heads are fixedly connected on the emulsion delivery pipe;The first spray head is towards working roller;Four L-shaped baffles are fixedly connected on the support;A group of emulsion delivery pipes corresponds with an L-shaped baffle;The lower end of the L-shaped baffle is fixedly connected with drain pipe;The present application is by setting L-shaped baffle and is kept in L-shaped baffle by part of the rebounding emulsion;Reduce the amount of emulsion and strip steel contact, reduce the corrosion of chemical components in emulsion to strip steel;Emulsion in L-shaped baffle passes through drain pipe and collection tank, enters waste liquid processor;Make waste liquid be effectively handled, and will not have influence on environment.

Description

Technical Field

[0001] This invention relates to the field of cold-rolled strip steel technology, and in particular to an emulsion spraying device. Background Technology

[0002] Emulsions are used in the cold rolling process of strip steel. Emulsions are used to cool, lubricate and preheat the rolls, control the roll shape, extend the service life of the rolls, reduce rolling pressure, and improve the surface finish of the strip steel.

[0003] In the existing technology, after the strip steel is pickled, it is rolled. When the strip steel enters one end of the rolling mill, the emulsion spraying device is turned on to spray the emulsion onto the work roll. After the strip steel passes through the work roll, the air purging mechanism blows the emulsion off the surface of the strip steel. The purged strip steel is then rolled into a steel coil.

[0004] However, during the spraying of the emulsion, the work rolls will bounce the emulsion back onto the strip. Furthermore, as the work rolls rotate, centrifugal force causes the emulsion to separate from them, and some emulsion will fall onto the strip surface. The short air purging time is insufficient to completely remove the emulsion from the strip surface. The presence of iron powder in the emulsion, coupled with the evaporation of water at high temperatures, increases the various chemical components in the emulsion, accelerating chemical reactions. These reactants combine with the strip body to form rust, depositing on the strip surface and creating difficult-to-remove emulsion stains. The more emulsion remains on the strip surface and the longer the post-rolling residence time, the more severe and darker the emulsion stains become, significantly impacting the quality of the strip. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem of corrosion of the strip steel caused by the chemical components in the emulsion remaining on the strip steel during emulsion spraying in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention provides an emulsion spraying device, including a support frame; two sets of working rollers are rotatably connected to the middle of the support frame; the two sets of working rollers are symmetrically distributed in a vertical direction; four sets of emulsion conveying pipes are fixedly connected to the support frame; each set of working rollers has a set of emulsion conveying pipes on both sides; several first nozzles are fixedly connected to the emulsion conveying pipes; the first nozzles face the working rollers; four L-shaped baffles are fixedly connected to the support frame; one set of emulsion conveying pipes corresponds to one L-shaped baffle; the L-shaped baffles are arranged parallel to the emulsion conveying pipes and working rollers, and the working rollers and emulsion conveying pipes are located within two symmetrically arranged L-shaped baffles; a drain pipe is fixedly connected to the lower end of the upper L-shaped baffle; the upper end of the drain pipe passes through the support frame and communicates with the lower end of the L-shaped baffle;

[0007] In one embodiment of the invention, the L-shaped baffle is inclined toward the side away from the working roller;

[0008] In one embodiment of the present invention, a collection box is fixed to the bottom of the bracket; the top of the collection box is open; the lower end of the drain pipe is connected to the collection box; and a waste liquid pipe is connected to the bottom of the collection box.

[0009] In one embodiment of the present invention, a cleaning assembly and an air blower are fixedly connected to one side of the support adjacent to the L-shaped baffle, and are symmetrically arranged on the other side of the support; the cleaning assembly and the air blower are arranged adjacent to each other; the air blower and the cleaning assembly located on the upper and lower sides are symmetrical about the strip passing between the two work rollers; the cleaning assembly is arranged adjacent to the L-shaped baffle, and the air blower is arranged away from the L-shaped baffle; the cleaning assembly includes a fixed scraper; the fixed scraper is fixedly connected to the support; the lower end of the fixed scraper is in contact with the strip;

[0010] In one embodiment of the present invention, the milk cleaning assembly further includes a lead screw; the lead screw is rotatably connected to the bracket; the lead screw is located between the fixed scraper and the L-shaped baffle; a movable scraper is threadedly connected to the lead screw; a transmission A assembly is arranged between the lead screws on the same side of the working roller; the movable scraper contacts the strip steel; guide plates are fixedly connected to both ends of the top of the collection box; the guide plates are fixedly connected to the bracket and located below the air blower;

[0011] In one embodiment of the present invention, the transmission A assembly includes a first motor; the first motor is fixedly connected to the bracket; the output end of the first motor is fixedly connected to one of the lead screws via a shaft; gears are fixedly connected to the ends of the two lead screws away from the first motor via shafts; the two gears are meshed together.

[0012] In one embodiment of the present invention, the milk-cleansing assembly further includes a rotating roller; the rotating roller is rotatably connected to the bracket; the rotating roller is located between the fixed scraper and the air blower; a sponge is fixedly connected to the rotating roller by a strap; a transmission assembly B is provided between the lead screw and the rotating roller; the transmission assembly B is located on the side of the bracket near the first motor; the sponge is in contact with the strip steel.

[0013] In one embodiment of the present invention, the transmission component B includes a pulley; another lead screw and a rotating roller are respectively fixed to a pulley via a shaft; a belt is drivingly connected between the two pulleys;

[0014] In one embodiment of the present invention, four sets of water supply pipes are fixedly connected to the bracket; the water supply pipes correspond to the emulsion delivery pipes; and two sets of second nozzles are fixedly connected to each of the water supply pipes.

[0015] In one embodiment of the invention, one set of the second nozzles faces the work roller, and another set of the second nozzles faces the L-shaped baffle.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] 1. This invention utilizes L-shaped baffles to prevent some of the separated emulsion from falling onto the strip steel. Due to the inclined arrangement of the L-shaped baffles, the emulsion on the upper L-shaped baffle flows into the recess at the bottom of the L-shape, thus collecting the emulsion. The collected emulsion then flows into a collection tank through a drain pipe. The emulsion on the lower L-shaped baffle flows directly into the collection tank. This reduces the contact of splashed emulsion with the strip steel, minimizing corrosion. The emulsion entering the collection tank allows for centralized treatment of the waste liquid within the collection tank.

[0018] 2. In this invention, a first motor drives one of the lead screws to rotate. The lead screw, through parallel transmission of two gears, simultaneously rotates two lead screws located on the same side of the working roller. The lead screw drives a movable scraper to move along the lead screw, scraping the emulsion between the fixed scraper and the L-shaped baffle towards both sides of the working roller. This allows the residue to flow from both sides of the strip steel into the guide plate and then into the collection box. This minimizes the residence time of the emulsion on the strip steel surface and removes as much emulsion residue as possible, reducing the corrosion of the strip steel by the chemical components in the emulsion and improving the finished product quality. The other lead screw drives a rotating roller to rotate via a pulley and belt, and the two rotating rollers are connected by gear meshing. This allows a sponge on the rotating roller to absorb the last remaining emulsion on the strip steel surface. When the sponge needs to be replaced, simply untie the binding strap; the operation is simple and convenient. Water is sprayed onto the working roller and the L-shaped baffle through a water pipe and a second nozzle, cleaning the emulsion on the working roller and the L-shaped baffle, preventing the chemical components in the used emulsion from corroding the spraying device and extending its service life. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the main structure of one embodiment of the present invention. Figure 1 ;

[0021] Figure 2 This is a cross-sectional view of the main structure of an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the main structure of one embodiment of the present invention. Figure 2 ;

[0023] Figure 4This is a partial structural schematic diagram of one embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of a milk-cleansing component according to an embodiment of the present invention.

[0025] Explanation of reference numerals on the accompanying drawings:

[0026] 1. Support frame; 2. Working roller; 3. Emulsion delivery pipe; 4. First nozzle; 5. L-shaped baffle; 6. Drain pipe; 7. Collection box; 8. Waste liquid pipe; 9. Air purger; 10. Emulsion cleaning assembly; 101. Fixed scraper; 102. Lead screw; 103. Moving scraper; 104. Guide plate; 105. Rotating roller; 11. Transmission A assembly; 111. First motor; 112. Gear; 12. Transmission B assembly; 13. Water delivery pipe; 14. Second nozzle. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0028] Reference Figures 1-5 As shown, an emulsion spraying device includes a support 1;

[0029] Two sets of working rollers 2 are rotatably connected to the middle of the support 1; the two sets of working rollers 2 are symmetrically distributed in a vertical direction; four sets of emulsion conveying pipes 3 are fixedly connected to the support 1; each set of working rollers 2 has one set of emulsion conveying pipes 3 on both sides; several first nozzles 4 are fixedly connected to the emulsion conveying pipes 3; the first nozzles 4 face the working rollers 2; four L-shaped baffles 5 are fixedly connected to the support 1; one set of emulsion conveying pipes 3 corresponds to one L-shaped baffle 5; the L-shaped baffles 5 are parallel to the emulsion... The liquid conveying pipe 3 and the working roller 2 are arranged, and the working roller 2 and the emulsion conveying pipe 3 are located within two symmetrically arranged L-shaped baffles 5; the lower end of the upper L-shaped baffle 5 is fixedly connected to a drain pipe 6; the upper end of the drain pipe 6 passes through the bracket 1 and communicates with the lower end of the L-shaped baffle 5; the L-shaped baffle 5 is inclined to the side away from the working roller 2; a collection box 7 is fixed to the bottom of the bracket 1; the top of the collection box 7 is open; the lower end of the drain pipe 6 communicates with the collection box 7; and a waste liquid pipe 8 is connected to the bottom of the collection box 7.

[0030] During operation, taking the strip steel flowing from the left end to the right end of the support 1 as an example, the emulsion is sprayed onto the work roll 2 through the emulsion delivery pipe 3 and the first nozzle 4 at the left end. When the emulsion is sprayed onto the work roll 2, due to the rotation of the work roll 2, the emulsion will be subjected to centrifugal force, causing the emulsion to separate from the work roll 2 and splash onto the strip steel. The chemical components in the emulsion will corrode the strip steel, affecting its quality. By setting up L-shaped baffles 5, some of the separated emulsion falling onto the strip steel is blocked. Due to the inclined arrangement of the L-shaped baffles 5, the emulsion on the upper L-shaped baffles 5 flows into the depression at the bottom of the L-shape, which serves to collect the emulsion. The collected emulsion then flows into the collection tank 7 through the drain pipe 6. The emulsion on the lower L-shaped baffles flows directly into the collection tank 7, reducing the contact of splashed emulsion with the strip steel and reducing the corrosion of the strip steel by the emulsion. The emulsion enters the collection tank 7, where waste liquid can be centrally treated.

[0031] In one embodiment of the present invention, a cleaning assembly 10 and an air blower 9 are fixedly connected to one side of the support 1 adjacent to the L-shaped baffle 5, and are symmetrically arranged on the other side of the support 1; the cleaning assembly 10 and the air blower 9 are arranged adjacent to each other; the air blower 9 and the cleaning assembly 10 located on the upper and lower sides are symmetrical about the strip steel passing between the two work rollers 2; the cleaning assembly 10 is arranged adjacent to the L-shaped baffle 5, and the air blower 9 is arranged away from the L-shaped baffle 5; the cleaning assembly 10 includes a fixed scraper 101; the fixed scraper 101 is fixedly connected to the support 1; the lower end of the fixed scraper 101 is in contact with the strip steel;

[0032] During the movement of the strip, the fixed scraper 101 blocks the residual emulsion on the surface of the strip between the fixed scraper 101 and the L-shaped baffle 5, thereby reducing the residual emulsion on the surface of the strip after passing through the fixed scraper 101. The air blower 9 blows the surface of the strip to accelerate the evaporation of water on the surface of the strip.

[0033] The milk cleaning assembly 10 also includes a lead screw 102; the lead screw 102 is rotatably connected to the bracket 1; the lead screw 102 is located between the fixed scraper 101 and the L-shaped baffle 5; a movable scraper 103 is threadedly connected to the lead screw 102; a transmission A assembly 11 is arranged between the lead screws 102 on the same side of the working roller 2; the movable scraper 103 is in contact with the strip steel; guide plates 104 are fixedly connected to both ends of the top of the collection box 7; the guide plates 104 are fixedly connected to the bracket 1 and are located below the air blower 9;

[0034] The transmission A assembly 11 includes a first motor 111; the first motor 111 is fixedly connected to the bracket 1; the output end of the first motor 111 is fixedly connected to one of the lead screws 102 via a shaft; gears 112 are fixedly connected to the ends of the two lead screws 102 away from the first motor 111 via shafts; the two gears 112 are meshed together.

[0035] During operation, the first motor 111 drives one of the lead screws 102 to rotate. The lead screw 102 rotates simultaneously through the parallel transmission of two gears 112, causing the two lead screws 102 located on the same side of the work roll 2 to rotate simultaneously. The lead screw 102 drives the movable scraper 103 to move on the lead screw 102. The movable scraper 103 scrapes the emulsion between the fixed scraper 101 and the L-shaped baffle 5 to both sides of the work roll 2, so that the residue flows from both sides of the strip steel into the guide plate 104 and then into the collection box 7. This minimizes the residence time of the emulsion on the surface of the strip steel and removes as much emulsion residue as possible, reducing the corrosion of the strip steel by the chemical components in the emulsion and improving the finished product quality of the strip steel.

[0036] The milk cleaning assembly 10 also includes a rotating roller 105; the rotating roller 105 is rotatably connected to the bracket 1; the rotating roller 105 is located between the fixed scraper 101 and the air blower 9; a sponge is fixed to the rotating roller 105 by a strap; a transmission B assembly 12 is provided between the lead screw 102 and the rotating roller 105; the transmission B assembly 12 is located on the side of the bracket 1 near the first motor 111; the sponge is in contact with the strip steel; the two rotating rollers 105 are connected by two meshing gears 112.

[0037] The transmission assembly B 12 includes a pulley; another lead screw 102 and a rotating roller 105 are respectively fixed to a pulley via a shaft; a belt is used to drive the two pulleys together;

[0038] During operation, another lead screw 102 drives the rotating roller 105 to rotate via a pulley and belt, and then the two rotating rollers 105 are rotated by the meshing of gear 112; so that the sponge on the rotating roller 105 can absorb the last remaining emulsion on the surface of the strip steel; when the sponge needs to be replaced, simply untie the strap, making the operation simple and convenient.

[0039] Four sets of water supply pipes 13 are fixedly connected to the bracket 1; the water supply pipes 13 correspond to the emulsion conveying pipes 3; two sets of second nozzles 14 are fixedly connected to each water supply pipe 13; one set of second nozzles 14 faces the working roller 2, and the other set of second nozzles 14 faces the L-shaped baffle 5.

[0040] After operation, water is sprayed onto the working roller 2 and L-shaped baffle 5 through the water supply pipe 13 and the second nozzle 14. This cleans the emulsion on the working roller 2 and L-shaped baffle 5, preventing the chemical components in the used emulsion from corroding the spraying device and extending its service life.

[0041] Working principle:

[0042] During operation, taking the strip steel moving from the left end to the right end of the support 1 as an example, the emulsion is sprayed onto the work roll 2 through the emulsion delivery pipe 3 and the first nozzle 4 at the left end. When the emulsion is sprayed onto the work roll 2, due to the rotation of the work roll 2, the emulsion will be subjected to centrifugal force, causing the emulsion to separate from the work roll 2 and splash onto the strip steel. The chemical components in the emulsion will corrode the strip steel, affecting its quality. By setting up an L-shaped baffle 5, some of the separated emulsion falling onto the strip steel is blocked. Due to the inclined arrangement of the L-shaped baffle 5, the upper L... The emulsion on the baffle 5 flows into the recess at the bottom of the L-shaped baffle, serving to collect the emulsion. The collected emulsion then flows into the collection tank 7 through the drain pipe 6. The emulsion on the lower L-shaped baffle flows directly into the collection tank 7, reducing splashed emulsion contact with the strip steel and reducing corrosion of the strip steel. The emulsion enters the collection tank 7, allowing for centralized treatment of waste liquid within the collection tank 7. During the movement of the strip steel, the fixed scraper 101 blocks the residual emulsion on the strip steel surface between the fixed scraper 101 and the L-shaped baffle 5, allowing the emulsion to pass through the fixed scraper... As the residual emulsion on the strip surface after plate 101 decreases, the first motor 111 drives one of the lead screws 102 to rotate. Through parallel transmission of two gears 112, the two lead screws 102 located on the same side of the work roll 2 rotate simultaneously. The lead screws 102 drive the movable scraper 103 to move along them. The movable scraper 103 scrapes the emulsion between the fixed scraper 101 and the L-shaped baffle 5 towards both sides of the work roll 2, causing the residue to flow from both sides of the strip into the guide plate 104 and then into the collection box 7. This allows the emulsion to flow onto the strip... The short residence time on the steel surface and the removal of emulsion residue as much as possible reduce the corrosion of the strip steel by the chemical components in the emulsion, thereby improving the finished quality of the strip steel; another lead screw 102 drives the rotating roller 105 to rotate through the pulley and belt, and then the two rotating rollers 105 are connected by the meshing of the gear 112; the sponge on the rotating roller 105 can absorb the last remaining emulsion on the surface of the strip steel; when the sponge needs to be replaced, it can be untied, which is simple and convenient to operate; the air blower 9 blows the surface of the strip steel to accelerate the evaporation of water on the surface of the strip steel;

[0043] After operation, water is sprayed onto the working roller 2 and L-shaped baffle 5 through the water supply pipe 13 and the second nozzle 14. This cleans the emulsion on the working roller 2 and L-shaped baffle 5, preventing the chemical components in the used emulsion from corroding the spraying device and extending its service life.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An emulsion spraying device, characterized in that: Includes a support (1); two sets of working rollers (2) are rotatably connected to the middle of the support (1); the two sets of working rollers (2) are symmetrically distributed in a vertical direction; four sets of emulsion conveying pipes (3) are fixedly connected to the support (1); each set of working rollers (2) has a set of emulsion conveying pipes (3) on both sides; several first nozzles (4) are fixedly connected to the emulsion conveying pipes (3); the first nozzles (4) face the working rollers (2); the support (1) is fixedly connected to... Four L-shaped baffles (5); a set of emulsion conveying pipes (3) corresponding to one L-shaped baffle (5); the L-shaped baffles (5) are arranged parallel to the emulsion conveying pipes (3) and the working roller (2), and the working roller (2) and the emulsion conveying pipes (3) are located in two symmetrically arranged L-shaped baffles (5); the lower end of the upper L-shaped baffle (5) is fixedly connected to a drain pipe (6); the upper end of the drain pipe (6) passes through the bracket (1) and communicates with the lower end of the L-shaped baffle (5); A collection box (7) is fixed to the bottom of the support (1); the top of the collection box (7) is open; the lower end of the drain pipe (6) is connected to the collection box (7); and a waste liquid pipe (8) is connected to the bottom of the collection box (7). A cleaning assembly (10) and an air blower (9) are fixedly connected to one side of the support (1) adjacent to the L-shaped baffle (5), and are symmetrically arranged on the other side of the support (1); the cleaning assembly (10) and the air blower (9) are arranged adjacent to each other; the air blower (9) and the cleaning assembly (10) located on the upper and lower sides are symmetrical about the strip steel passing between the two work rollers (2); the cleaning assembly (10) is arranged adjacent to the L-shaped baffle (5), and the air blower (9) is arranged away from the L-shaped baffle (5); the cleaning assembly (10) includes a fixed scraper (101); the fixed scraper (101) is fixedly connected to the support (1); the lower end of the fixed scraper (101) is in contact with the strip steel; The milk cleaning assembly (10) also includes a lead screw (102); the lead screw (102) is rotatably connected to the bracket (1); the lead screw (102) is located between the fixed scraper (101) and the L-shaped baffle (5); a movable scraper (103) is threadedly connected to the lead screw (102); a transmission A assembly (11) is provided between the lead screws (102) on the same side of the working roller (2); the movable scraper (103) is in contact with the strip steel; guide plates (104) are fixedly connected to the top two ends of the collection box (7); the guide plates (104) are fixedly connected to the bracket (1) and located below the air blower (9); The transmission A assembly (11) includes a first motor (111); the first motor (111) is fixedly connected to the bracket (1); the output end of the first motor (111) is fixedly connected to one of the lead screws (102) via a shaft; gears (112) are fixedly connected to the ends of the two lead screws (102) away from the first motor (111) via shafts; the two gears (112) are meshed and connected. The milk cleaning assembly (10) also includes a rotating roller (105); the rotating roller (105) is rotatably connected to the bracket (1); the rotating roller (105) is located between the fixed scraper (101) and the air blower (9); a sponge is fixed to the rotating roller (105) by a strap; a transmission B assembly (12) is provided between the lead screw (102) and the rotating roller (105); the transmission B assembly (12) is located on the side of the bracket (1) near the first motor (111); the sponge is in contact with the strip steel; The transmission assembly B (12) includes a pulley; another lead screw (102) and a rotating roller (105) are respectively fixed to a pulley via a shaft; a belt is connected between the two pulleys for transmission.

2. The emulsion spraying device according to claim 1, characterized in that: The L-shaped baffle (5) is tilted away from the working roller (2).

3. The emulsion spraying device according to claim 1, characterized in that: Four sets of water supply pipes (13) are fixedly connected to the bracket (1); the water supply pipes (13) correspond to the emulsion delivery pipes (3); and two sets of second nozzles (14) are fixedly connected to each of the water supply pipes (13).

4. The emulsion spraying device according to claim 3, characterized in that: One set of the second nozzles (14) faces the work roller (2), and the other set of the second nozzles (14) faces the L-shaped baffle (5).

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