Continuous pickling device for cold-rolled steel strip

Abstract

The utility model provides a cold-rolled steel strip continuous pickling device, which relates to the technical field of cold-rolled steel strip pickling, and comprises a pickling tank, a water source collecting tank is arranged on the left side of the top end surface of the pickling tank, and a second processing tank is arranged above the right side surface of the inner end of the water source collecting tank; water source conveying cavities are formed in the positions, adjacent to the two inclined faces of the second treatment tank, of the interior of the pickling pool, the two inclined faces of the second treatment tank are each provided with a row of spray heads b in an evenly-distributed mode, and the spray heads b communicate with the adjacent water source conveying cavities. The surface of the cold-rolled steel strip is wetted in advance through water sprayed by the spray head b, so that air adsorbed in micro pits or gaps on the surface of the cold-rolled steel strip is extruded and discharged, the phenomenon that bubbles are not generated on the surface of the cold-rolled steel strip when the cold-rolled steel strip is immersed in pickling solution subsequently is avoided, and the problem that the cold-rolled steel strip cannot be damaged when the cold-rolled steel strip is directly immersed in the pickling solution is solved. And bubbles are easily formed on the surface of the cold-rolled steel strip, so that the acid pickling effect is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold-rolled steel strip pickling technical field, especially to a kind of cold-rolled steel strip continuous pickling device. BACKGROUND

[0002] In the production process of cold-rolled steel strip, pickling is a crucial link. The surface of cold-rolled steel strip usually has impurities such as iron oxide scale, which can seriously affect the subsequent processing performance and product quality of the steel strip. For example, if the iron oxide scale is not effectively removed before the surface treatment such as galvanizing and painting of the cold-rolled steel strip, it will cause the adhesion of the coating to decrease, resulting in quality problems such as peeling and peeling, and also affect the mechanical properties and appearance of the steel strip. Therefore, high-quality pickling process is of great significance to the cold-rolled steel strip industry.

[0003] At present, the continuous pickling method for cold-rolled steel strip is by immersion method to realize pickling treatment of cold-rolled steel strip, but because the micro concave or gap on the surface of cold-rolled steel strip adsorbs air, when it is directly immersed in pickling solution, water will gradually fill these spaces, and the original adsorbed air will be expelled out to form bubbles on the surface of cold-rolled steel strip, which will adversely affect the pickling effect of the corresponding part, resulting in certain defects in the pickling process. CONTENT OF THE UTILITY MODEL

[0004] The utility model relates to a kind of cold-rolled steel strip continuous pickling device, solve the problem that present cold-rolled steel strip when it directly immerses in pickling solution, bubble is easily formed on the surface of cold-rolled steel strip, thereby causing adverse effect to pickling effect.

[0005] The utility model provides a kind of cold-rolled steel strip continuous pickling device, specifically includes: pickling pool, the pickling pool is rectangular block structure, pickling pool top end surface left side is provided with one water source collection groove, water source collection groove is rectangular groove structure;The pickling pool top end surface adjacent to water source collection groove right side is provided with one pickling groove, pickling groove is rectangular groove structure;Second treatment groove is set up in one place on the upper part of the right side surface in the water source collection groove, second treatment groove is triangular groove structure, pickling groove inner end left side surface is set up in one place with the second treatment groove part and is communicated with its delivery opening b;The two inclined surface parts adjacent to second treatment groove in the pickling pool interior are each provided with one water source delivery cavity, water source delivery pipe is communicated with the two water source delivery cavities and is installed on the back end surface of pickling pool;The two inclined surfaces of second treatment groove are each installed with a row of spray head b in even distribution, and spray head b is communicated with the water source delivery cavity adjacent to position.

[0006] Further, the acid pickling tank left end face upper part is provided with a first treatment groove, the first treatment groove is a triangular groove structure, the water collecting groove inner end left side face is provided with a conveying opening a communicated with the first treatment groove; the acid pickling tank interior is provided with a gas conveying cavity a in the two inclined surface parts adjacent to the first treatment groove, and the acid pickling tank rear end face is provided with a gas conveying pipeline a communicated with the two gas conveying cavities a; the two inclined surfaces of the first treatment groove are each provided with a row of spray heads a in a uniform distribution, and the spray heads a are communicated with the gas conveying cavities a adjacent in position.

[0007] Further, the acid pickling tank left end face upper part is provided with a first treatment groove, the first treatment groove is a triangular groove structure, the water collecting groove inner end left side face is provided with a conveying opening a communicated with the first treatment groove; the acid pickling tank interior is provided with a gas conveying cavity a in the two inclined surface parts adjacent to the first treatment groove, and the acid pickling tank rear end face is provided with a gas conveying pipeline a communicated with the two gas conveying cavities a; the two inclined surfaces of the first treatment groove are each provided with a row of spray heads a in a uniform distribution, and the spray heads a are communicated with the gas conveying cavities a adjacent in position.

[0008] Further, the acid pickling tank left end upper side and right end upper side are each provided with a conveying auxiliary roller; the acid pickling tank top end face front side edge part is rotatably provided with a cover plate, when the cover plate bottom end face is in contact with the acid pickling tank top end face, the cover plate completely covers the acid pickling tank top opening end; the cover plate top end face and bottom end face are jointly embedded with a transparent observation window, and the cover plate top end face adjacent edge part is fixedly provided with a handle.

[0009] Further, the acid pickling tank left side is provided with a pretreatment block body in a rectangular block structure, and the pretreatment block body right end face and the acid pickling tank left end face are fixedly connected through a connecting block; the pretreatment block body left end face is provided with a pretreatment opening penetrating the right end face, and the pretreatment opening inner end top face and inner end bottom face are fixedly provided with steel wire brushes.

[0010] The utility model provides a cold-rolled steel strip continuous pickling device has the following beneficial effects:

[0011] The utility model discloses cold-rolled steel strip before being immersed in pickling solution, realizes two pretreatment procedures to it, pretreatment procedure one, realizes the polishing pretreatment of surface rust through the friction contact of steel wire brush and cold-rolled steel strip surface, and cooperates the high pressure gas of subsequent, carries out the blowing operation of the impurity that cold-rolled steel strip surface is polished but does not separate its surface, to avoid its same cold-rolled steel strip and immerse in pickling solution and cause pollution, pretreatment procedure two, realizes the pre-wetting of cold-rolled steel strip surface through the water that sprays out of the spray head b, to extrude and discharge the air adsorbed in its surface micro concave or gap, to avoid its surface when subsequent immersion in pickling solution, will not produce the bubble, to avoid the influence of the generation of bubble to the pickling effect of corresponding part, ensure pickling quality, and when cold-rolled steel strip is conveyed out pickling tank after pickling, again through the high pressure gas of pickling solution that remains on the surface of cold-rolled steel strip carries out the blowing operation, to avoid its same cold-rolled steel strip and be conveyed to the next procedure and lead to the corrosion damage of subsequent procedure equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.

[0013] The drawings described in the following merely relate to some embodiments of the utility model, and are not the limitation of the utility model.

[0014] In the drawings:

[0015] Figure 1 The axial structure schematic diagram of the application is shown;

[0016] Figure 2 The axial structure schematic diagram of the application is shown; Figure 1 The structure schematic diagram of the application is shown in the cover plate rotation unfolding state;

[0017] Figure 3 The structure schematic diagram of the application is shown in the pickling pool;

[0018] Figure 4 The structure schematic diagram of the application is shown in the pickling pool; Figure 3 The structure schematic diagram of the application is shown in the A place of partial enlargement in the pickling pool;

[0019] Figure 5 The structure schematic diagram of the application is shown in the B place of partial enlargement in the pickling pool; Figure 3 The structure schematic diagram of the application is shown in the B place of partial enlargement in the pickling pool;

[0020] List of reference signs

[0021] 1. pickling tank; 101, pretreatment block; 102, connecting block; 103, steel wire brush; 104, gas conveying pipe a; 105, water source conveying pipe; 106, gas conveying pipe b; 107, water source collecting tank; 108, pickling tank; 109, conveying auxiliary roller; 1010, pretreatment opening; 1011, first treatment tank; 1012, conveying opening a; 1013, gas conveying cavity a; 1014, spray head a; 1015, second treatment tank; 1016, conveying opening b; 1017, water source conveying cavity; 1018, spray head b; 1019, third treatment tank; 1020, conveying opening c; 1021, gas conveying cavity b; 1022, spray head c; 2, cover plate; 201, transparent observation window; 202, handle. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described clearly and completely below in combination with the drawings of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Embodiment: please refer to Figures 1 to 5 :

[0024] The utility model provides a kind of cold-rolled steel strip continuous pickling device, comprising: pickling pool 1, pickling pool 1 is rectangular block structure, pickling pool 1 top end face left side is provided with a water source collection groove 107, water source collection groove 107 is rectangular groove structure;Pickling pool 1 top end face adjacent to water source collection groove 107 right side is provided with a pickling groove 108, pickling groove 108 is rectangular groove structure;Water source collection groove 107 inner end right side face upper part is provided with a second treatment groove 1015, second treatment groove 1015 is triangular groove structure, pickling groove 108 inner end left side face relative to second treatment groove 1015 part is provided with a delivery opening b1016 connected therewith;Pickling pool 1 inside adjacent to the two inclined surface parts of second treatment groove 1015 are provided with a water source delivery cavity 1017, and pickling pool 1 rear end surface is installed with water source delivery pipeline 105 connected with two water source delivery cavities 1017;Second treatment groove 1015 two inclined surfaces are evenly distributed and each are installed with a row of spray heads b1018, and spray head b1018 is connected with position adjacent water source delivery cavity 1017;Pickling pool 1 left end face upper part is provided with a first treatment groove 1011, and first treatment groove 1011 is triangular groove structure, and water source collection groove 107 inner end left side face relative to first treatment groove 1011 part is provided with a delivery opening a1012 connected therewith;Pickling pool 1 inside adjacent to the two inclined surface parts of first treatment groove 1011 are provided with a gas delivery cavity a1013, and pickling pool 1 rear end surface is installed with gas pipeline a104 connected with two gas delivery cavities a1013;First treatment groove 1011 two inclined surfaces are evenly distributed and each are installed with a row of spray heads a1014, and spray head a1014 is connected with position adjacent gas delivery cavity a1013;Pickling groove 108 inner end right side face upper part is provided with a third treatment groove 1019, and third treatment groove 1019 is triangular groove structure, and pickling pool 1 right end face relative to third treatment groove 1019 part is provided with a delivery opening c1020 connected therewith;Pickling pool 1 inside adjacent to the two inclined surface parts of third treatment groove 1019 are provided with a gas delivery cavity b1021, and pickling pool 1 rear end surface is installed with gas pipeline b106 connected with two gas delivery cavities b1021;Third treatment groove 1019 two inclined surfaces are evenly distributed and each are installed with a row of spray heads c1022, and spray head c1022 is connected with position adjacent gas delivery cavity b1021.

[0025] In the embodiment, the acid pickling tank 1 is provided with a conveying auxiliary roller 109 on each of the upper and lower sides of the left end and the upper and lower sides of the right end; a cover plate 2 is rotatably installed on the front edge of the top end surface of the acid pickling tank 1, and when the bottom end surface of the cover plate 2 is in contact with the top end surface of the acid pickling tank 1, the cover plate 2 completely covers the top opening end of the acid pickling tank 108; a transparent observation window 201 is embedded between the top end surface and the bottom end surface of the cover plate 2, and a handle 202 is fixedly installed on the adjacent edge of the top end surface of the cover plate 2; a pretreatment block 101 in the shape of a rectangular block is arranged on the left side of the acid pickling tank 1, and the right end surface of the pretreatment block 101 is fixedly connected to the left end surface of the acid pickling tank 1 through a connecting block 102; a pretreatment opening 1010 penetrating the right end surface is formed in the left end surface of the pretreatment block 101 relative to the conveying opening a1012, and steel wire brushes 103 are fixedly installed on the inner top surface and the inner bottom surface of the pretreatment opening 1010.

[0026] The working principle of the embodiment is as follows:

[0027] The gas conveying pipe a104 and the gas conveying pipe b106 are connected to the fan through pipes, and the water source conveying pipe 105 is connected to the water pump for water source conveying through a pipe; the cold-rolled steel strip to be pickled is sequentially inserted through the pretreatment opening 1010, the conveying opening a1012, the conveying opening b1016, and the conveying opening c1020, and the cold-rolled steel strip in the acid pickling tank 108 is arranged on the four conveying auxiliary rollers 109 of the acid pickling tank 108 to ensure that the cold-rolled steel strip is immersed in the pickling solution in the acid pickling tank 108;

[0028] The cold-rolled steel strip first contacts the steel wire brushes 103 in the pretreatment opening 1010 to rub and polish the surface of the cold-rolled steel strip through the steel wire brushes 103 to remove most of the rust on the surface, and then when the cold-rolled steel strip is conveyed to the first treatment tank 1011, high-pressure gas is sprayed through the spray head a1014 to blow off the impurities on the surface of the cold-rolled steel strip after polishing but not separated from the surface to avoid pollution when the cold-rolled steel strip is immersed in the pickling solution;

[0029] When the cold-rolled steel strip is conveyed to the second treatment tank 1015, water is sprayed through the spray head b1018 to pre-wet the surface of the cold-rolled steel strip to squeeze out the air adsorbed in the micro concave pits or gaps on the surface of the cold-rolled steel strip, so that no air bubbles are generated on the surface when the cold-rolled steel strip is subsequently immersed in the pickling solution, thereby avoiding the influence of the generation of air bubbles on the pickling effect of the corresponding part and ensuring the pickling quality;

[0030] When the cold-rolled steel strip is conveyed to the third treatment tank 1019 after being pickled, the high-pressure gas sprayed by the spray head c 1022 blows off the residual pickling solution on the surface of the cold-rolled steel strip to avoid the pickling solution being conveyed to the next process together with the cold-rolled steel strip and causing corrosion damage to the subsequent process equipment.

[0031] In this document, the following points need to be noted:

[0032] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0033] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0034] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure.

Claims

1. A continuous pickling installation for cold-rolled steel strip, characterized in that, The application relates to an acid pickling tank (1) which comprises: an acid pickling tank (1) in a rectangular block structure, a water source collecting groove (107) in a rectangular groove structure being formed on the left side of the top end surface of the acid pickling tank (1), an acid pickling groove (108) in a rectangular groove structure being formed on the right side of the top end surface of the acid pickling tank (1) and adjacent to the water source collecting groove (107), a second treatment groove (1015) in a triangular groove structure being formed on the upper part of the right side surface of the inner end of the water source collecting groove (107), a conveying opening b (1016) being formed on the left side surface of the inner end of the acid pickling groove (108) and being communicated with the second treatment groove (1015), water source conveying cavities (1017) being formed on the two inclined surface parts of the inner part of the acid pickling tank (1) and being adjacent to the second treatment groove (1015), and a water source conveying pipeline (105) being installed on the rear end surface of the acid pickling tank (1) and being communicated with the two water source conveying cavities (1017), the two inclined surfaces of the second treatment groove (1015) being evenly distributed and each being installed with a row of spray heads b (1018), and the spray heads b (1018) being communicated with the water source conveying cavities (1017) adjacent in position.

2. A continuous pickling installation for cold-rolled steel strip according to claim 1, characterized in that a first treatment groove (1011) in a triangular groove structure being formed on the upper part of the left end surface of the acid pickling tank (1), a conveying opening a (1012) being formed on the left side surface of the inner end of the water source collecting groove (107) and being communicated with the first treatment groove (1011), gas conveying cavities a (1013) being formed on the two inclined surface parts of the inner part of the acid pickling tank (1) and being adjacent to the first treatment groove (1011), and a gas conveying pipeline a (104) being installed on the rear end surface of the acid pickling tank (1) and being communicated with the two gas conveying cavities a (1013), the two inclined surfaces of the first treatment groove (1011) being evenly distributed and each being installed with a row of spray heads a (1014), and the spray heads a (1014) being communicated with the gas conveying cavities a (1013) adjacent in position.

3. A continuous pickling installation for cold-rolled steel strip according to claim 2, characterized in that, a third treatment groove (1019) in a triangular groove structure being formed on the upper part of the right side surface of the inner end of the acid pickling groove (108), a conveying opening c (1020) being formed on the right end surface of the acid pickling tank (1) and being communicated with the third treatment groove (1019), gas conveying cavities b (1021) being formed on the two inclined surface parts of the inner part of the acid pickling tank (1) and being adjacent to the third treatment groove (1019), and a gas conveying pipeline b (106) being installed on the rear end surface of the acid pickling tank (1) and being communicated with the two gas conveying cavities b (1021), the two inclined surfaces of the third treatment groove (1019) being evenly distributed and each being installed with a row of spray heads c (1022), and the spray heads c (1022) being communicated with the gas conveying cavities b (1021) adjacent in position.

4. A continuous pickling installation for cold-rolled steel strip according to claim 3, characterized in that The acid pickling tank (1) left end upper and lower sides and right end upper and lower sides are each installed with a conveying auxiliary roller (109); the top end face front side edge part of the acid pickling tank (1) is rotatably installed with a cover plate (2), when the bottom end face of the cover plate (2) is in contact with the top end face of the acid pickling tank (1), the cover plate (2) completely covers the top opening end of the acid pickling tank (108); the top end face and the bottom end face of the cover plate (2) are jointly embeddedly installed with a transparent observation window (201), the top end face adjacent edge part of the cover plate (2) is fixedly installed with a handle (202).

5. A continuous pickling installation for cold-rolled steel strip according to claim 4, characterized in that, The left side of the acid pickling tank (1) is provided with a pretreatment block (101) in a rectangular block structure, the right end face of the pretreatment block (101) is fixedly connected with the left end face of the acid pickling tank (1) through a connecting block (102); a pretreatment opening (1010) penetrating through the right end face is formed in the left end face of the pretreatment block (101) relative to the conveying opening a (1012) part, the inner end top face and the inner end bottom face of the pretreatment opening (1010) are fixedly installed with steel wire brushes (103).

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