Pickling tank for steel pipe production

Abstract

The utility model relates to a pickling tank for steel pipe production, which comprises a tank body and a cover plate, a liquid containing cavity is arranged in the tank body, the cover plate is positioned above the tank body, an upward projection of the liquid containing cavity falls on the cover plate, the pickling tank also comprises a placing basket, the top of the placing basket is inserted with the cover plate and is positioned in the liquid containing cavity, the placing basket comprises a plurality of material placing positions, and the material placing positions are arranged in the liquid containing cavity. And a plurality of filter holes communicated with the liquid accommodating cavity are formed in the bottom of the accommodating basket corresponding to the material accommodating positions. By the adoption of the scheme, the pickling tank for steel pipe production has the advantages that steel pipes needing to be subjected to pickling are placed in the storage positions respectively so that the steel pipes can make contact with pickling liquid, and after pickling is completed, the storage basket is lifted upwards so that the pickling liquid can flow out of the filter holes so that pickling can be completed.

Description

Technical Field

[0001] The utility model relates to the field of steel pipe production, in particular to a pickling tank used for steel pipe production. Background Art

[0002] The pickling treatment of steel is widely used in the removal of surface oxide scale of cold-rolled sheet blanks and hot-rolled sheets. For example, hot-rolled steel sections need to be phosphated or plated before surface treatment to remove the oxide scale; steel parts are rust-removed before electroplating and brush plating, and similar treatments in the production process of stainless steel and special steel.

[0003] However, since the liquid in the pickling tank is acid, it may pose a threat to the safety of the operators, that is, there is a safety hazard. Therefore, how to improve the safety of placing the steel pipe in the pickling tank and taking it out of the pickling tank has become a problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a pickling tank for steel pipe production, which can place each steel pipe that needs pickling in a placement position so that each steel pipe can contact with the pickling liquid, and after the pickling is completed, the placement basket is lifted upward to allow the pickling liquid to flow out of each filter hole to complete the pickling.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: it is composed of a pool body and a cover plate, wherein a liquid placement cavity is arranged in the pool body, the cover plate is located above the pool body and the upward projection of the liquid placement cavity falls on the cover plate, and also includes a placement basket, the top of the placement basket is inserted with the cover plate and is located in the liquid placement cavity, the placement basket includes a plurality of placement positions, and the bottom of the placement basket is provided with a plurality of filter holes connected with the liquid placement cavity corresponding to each placement position, and the placement basket includes, from top to bottom, a positioning plate inserted with the cover body, a plurality of upper connecting rods, a connecting ring, a plurality of lower connecting rods, and a plurality of lower connecting rods. The connecting rod is connected to a filter plate with filter holes, the top of each upper connecting rod is detachably connected to the positioning plate, and the bottom is fixedly connected to the connecting ring, the connecting ring is provided with mutually perpendicular partition rods, and each storage position is respectively located between the partition rods, the top of each lower connecting rod is fixedly connected to the connecting ring, and the bottom is fixedly connected to the filter plate, the cover body is provided with a plurality of mounting plates protruding downward, the pool body is provided with mounting grooves corresponding to each mounting plate, the pool body is fixedly installed with positioning blocks in each mounting groove, and each positioning block is inserted with a corresponding mounting plate.

[0006] The utility model is further configured as follows: a plurality of positioning posts for inserting the cover body are protrudingly arranged on the positioning plate, and a handle is arranged on the positioning plate.

[0007] The utility model is further configured as follows: the pool body is located in the accommodating cavity and a limiting ring is fixedly installed thereon, and the inner diameter shape and size of the limiting ring are adapted to the filter plate.

[0008] The utility model is further configured as follows: a limiting surface is arranged inside the limiting ring, and the limiting surface is arranged to be inclined from bottom to top and from inside to outside.

[0009] The utility model is further configured as follows: each of the positioning plugs is configured as a right-angled pyramid that is wide at the top and narrow at the bottom, each of the positioning plugs includes a right-angled surface, and each right-angled surface is fixedly connected to the pool body.

[0010] By adopting the above technical scheme, after each steel pipe that needs to be pickled is injected into the placement position respectively, the placement basket is sunk into the liquid placement cavity. At this time, each placement position is filled with pickling liquid, so that the circumferential surface of each steel pipe contacts the pickling liquid, and the pickling of the steel pipe is achieved. After the pickling of the steel pipe is completed, the placement basket is lifted upward. At this time, the pickling liquid in the placement basket can flow downward into the liquid placement cavity through the filter holes, so that the pickling liquid can be reused. At this time, since most of the pickling liquid in the placement basket is separated from the placement basket, compared with the operator directly taking out the steel pipe in the liquid placement cavity, the frequency of contact with the pickling liquid can be effectively reduced, thereby improving the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is an assembly diagram of a specific implementation method of the utility model;

[0013] Figure 2 It is an exploded view of the utility model;

[0014] Figure 3 This is an exploded view of the placement basket;

[0015] Figure 4 It is a cross-sectional view of the utility model;

[0016] Figure 5 for Figure 4 A magnified view of middle;

[0017] Figure 6 for Figure 4 Enlarged view of middle B;

[0018] Figure 7 for Figure 4 Enlarged view of C in the middle.

[0019] In the figure: 1-tank body, 11-liquid placement chamber, 12-limiting ring, 121-limiting surface, 13-mounting groove, 14-positioning plug, 141-right angle surface, 2-cover plate, 21-mounting plate, 3-placement basket, 31-placement position, 32-positioning plate, 321-handle, 322-positioning column, 33-upper connecting rod, 34-connecting ring, 35-lower connecting rod, 36-filter plate, 361-filter hole, 37-partition rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 7 As shown, the utility model discloses a pickling tank for steel pipe production, which consists of a tank body 1 and a cover plate 2. The tank body 1 is provided with a liquid placement cavity 11 for placing pickling liquid. The pickling liquid is usually made of bauxite and coke (anthracite) as main raw materials and is smelted at high temperature in an electric furnace. The pickling liquid includes hydrochloric acid type, sulfuric acid type, mixed type, etc. The cover plate 2 is located above the tank body 1 and the upward projection of the liquid placement cavity 11 falls on the cover plate 2. After the pickling liquid is poured into the liquid placement cavity 11, since the upward projection of the liquid placement cavity 11 falls on the cover plate 2, the pickling liquid will not flow out of the tank body 1 when the steel pipe is pickled. The utility model also includes a placement basket 3. The cover plate 2 is inserted on the top of the placement basket 3 and is located in the liquid placement cavity 11. The placement basket 3 includes a plurality of placement positions 31. The placement basket 3 A plurality of filter holes 361 connected to the liquid chamber 11 are provided at the bottom corresponding to each placement position 31. After the steel pipes to be pickled are respectively injected into the placement positions 31, the placement basket 3 is sunk into the liquid chamber 11. At this time, each placement position 31 is filled with pickling liquid, so that the circumferential surface of each steel pipe contacts the pickling liquid, and the pickling of the steel pipe is achieved. After the pickling of the steel pipe is completed, the placement basket 3 is lifted upward. At this time, the pickling liquid in the placement basket 3 can flow downward into the liquid chamber 11 through the filter holes 361, so that the pickling liquid can be reused. At this time, since most of the pickling liquid in the placement basket 3 is separated from the placement basket 3, compared with the operator directly taking the steel pipe out of the liquid chamber 11, the frequency of contact with the pickling liquid can be effectively reduced, thereby improving the safety of the operation.

[0022] The placing basket 3 includes, from top to bottom, a positioning plate 32 in which a cover is inserted, a plurality of upper connecting rods 33, a connecting ring 34, a plurality of lower connecting rods 35 and a filter plate 36 provided with filter holes 361. The top of each upper connecting rod 33 is detachably connected to the positioning plate 32 by bolts or the like, and the bottom is fixedly connected to the connecting ring 34 by welding, integral molding or the like. The connecting ring 34 is provided with mutually perpendicular partition rods 37. Each of the placing positions 31 is respectively located between the partition rods 37. The top of each lower connecting rod 35 is fixedly connected to the connecting ring 34 by welding, integral molding or the like, and the bottom is fixedly connected to the filter plate 36 by welding, integral molding or the like. 1. Since the top of each upper connecting rod 33 is detachable from the positioning plate 32, by removing the positioning plate 32, it is more convenient to place the steel pipe that needs to be pickled in the placing position 31, and then the positioning plate 32 and each upper connecting rod 33 are assembled together to make the placing 1. The basket 3 enters the liquid placement chamber 11 downward; 2. Since the partition rods 37 are perpendicular to each other, four placement positions 31 can be divided in the placement basket 3, so that multiple steel pipes can be placed at the same time to achieve pickling. At the same time, due to the existence of each placement position 31, the steel pipes in adjacent placement positions 31 will not collide and will not affect the pickling of the steel pipes in their respective placement positions 31; 3. Since each upper connecting rod 33 is located between the positioning plate 32 and the connecting ring 34, and each lower connecting rod 35 is located between the connecting ring 34 and the filter plate 36, the pickling liquid in the liquid placement chamber 11 can flow through the gaps between the upper connecting rods 33 and the lower connecting rods 35, so that it can enter each placement position 31 more smoothly to achieve pickling of the steel pipes in each placement position 31; 4. When the placement basket 3 is lifted and the steel pipe needs to be taken out, the pickling liquid in the placement basket 3 can flow out through the gaps between the upper connecting rods 33 and the lower connecting rods 35 and the filter holes 361 on the filter plate 36.

[0023] Among them, a plurality of positioning posts 322 for inserting the cover body are protrudingly provided on the positioning plate 32, and a handle 321 is provided on the positioning plate 32. 1. Since the positioning posts 322 will be inserted into the positioning plate 32, after the placement basket 3 is immersed in the liquid placement cavity 11 with the face downward, the placement basket 3 in the liquid placement cavity 11 cannot be rotated due to the presence of the positioning posts 322 and can be stably located at a specific position in the liquid placement cavity 11; 2. Due to the presence of the handle 321, the placement basket 3 can be placed downward into the liquid placement cavity 11 and taken out of the liquid placement cavity 11 with the face upward by applying force to the handle 321.

[0024] Among them, the pool body 1 is located in the accommodating cavity and a limit ring 12 is fixedly installed. The inner diameter shape and size of the limit ring 12 are adapted to the filter plate 36. Since the inner diameter of the limit ring 12 is adapted to the filter plate 36, the limit ring 12 can cooperate with each positioning column 322 so that the upper and lower ends of the placement basket 3 located in the liquid placement cavity 11 cannot shake at will in the liquid placement cavity 11, thereby further improving the stability of the placement basket 3 in the liquid placement cavity 11.

[0025] Preferably, a limiting surface 121 is provided on the inner side of the limiting ring 12, and the limiting surface 121 is inclined from bottom to top and from inside to outside. Since the limiting surface 121 is inclined, the limiting ring 12 located in the pool body 1 is set in a shape that is wide at the top and narrow at the bottom, so that when the filter plate 36 of the placement basket 3 enters the limiting ring 12, it will first contact the top of the limiting ring 12, that is, the position with the largest width, and then move vertically downward. Therefore, the setting of the limiting surface 121 enables the bottom of the placement basket 3, that is, the filter plate 36, to enter the limiting ring 12 more smoothly, so that the limiting ring 12 limits the filter plate 36.

[0026] In addition, the cover body is provided with a plurality of mounting plates 2121 protruding downward, and the pool body 1 is provided with mounting grooves 13 corresponding to the mounting plates 2121. The pool body 1 is fixedly installed with positioning blocks 14 in each mounting groove 13 by welding or the like, and each positioning block 14 is inserted with a corresponding mounting plate 2121. Since each positioning block 14 is inserted with the cover body, when the cover body falls on the pool body 1, an outward force is applied to the cover body, so that the positioning blocks 14 in each mounting groove 13 can be inserted with the corresponding mounting plates 2121, thereby making it possible to prevent the pool body from being damaged. Under the action of external force, the cover body cannot move relative to the pool body 1, so that the cover body can be stably located above the pool body 1 and because the top of the placement basket 3, that is, the positioning plate 32, is inserted into the cover body, the pickling liquid will not flow out of the pool body 1 after the placement basket 3 is placed in the liquid cavity 11. When the pickling liquid needs to be replenished into the liquid cavity 11, an outward force is applied to the cover body to deform it and separate it from the positioning plugs 14. At this time, the pickling liquid can be directly poured out from the opening on the upper side of the liquid cavity 11 of the pool body 1, thereby improving the efficiency of the pickling liquid entering the liquid cavity 11.

[0027] Preferably, each of the positioning blocks 14 is in the form of a right-angled pyramid that is wide at the top and narrow at the bottom, and each of the positioning blocks 14 includes a right-angled surface 141. Each right-angled surface 141 is fixedly connected to the pool body 1 by welding or the like. Since the right-angled surface 141 of each positioning block 14 is fixed to the pool body 1 and each positioning block 14 is wide at the top and narrow at the bottom, it can be known that the outer side of each positioning block 14, i.e., the end face parallel to the right-angled surface 141, is inclined. Therefore, the outer side of each positioning block 14 is a sharp angle, so that after the cover body is deformed, the sharp-angled portion of each positioning block 14 will first enter the cover body, making it smoother for each positioning block 14 to be inserted into the cover body.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pickling tank for steel pipe production, consisting of a tank body and a cover plate, wherein a liquid cavity is provided in the tank body, the cover plate is located above the tank body and the upward projection of the liquid cavity falls on the cover plate, characterized in that: The filter element is a filter element having a plurality of filter holes connected to the filter element, and a plurality of filter holes are connected to the filter element.

2. A pickling tank for steel pipe production according to claim 1, characterized in that: The positioning plate is protrudingly provided with a plurality of positioning posts for inserting the cover body, and the positioning plate is provided with a handle.

3. A pickling tank for steel pipe production according to claim 2, characterized in that: The pool body is located in the accommodating cavity and a limiting ring is fixedly installed thereon. The inner diameter, shape and size of the limiting ring are adapted to the filter plate.

4. A pickling tank for steel pipe production according to claim 3, characterized in that: A limiting surface is arranged inside the limiting ring, and the limiting surface is arranged to be inclined from bottom to top and from inside to outside.

5. The pickling tank for steel pipe production according to claim 1, characterized in that: Each of the positioning plugs is in the form of a right-angled pyramid that is wide at the top and narrow at the bottom. Each of the positioning plugs includes a right-angled surface, and each right-angled surface is fixedly connected to the pool body.

Images