CN205893395U - Acid washing tank - Google Patents

Abstract

The utility model relates to an acid washing tank, including cell body, pickle circulating device, capping, PH meter, thermometer, pickle circulating device includes feed liquor pipe, drain pipe, circulating pump, the one end of feed liquor pipe and the one end of drain pipe all are connected with the circulating pump, and the other end of feed liquor pipe and the other end of drain pipe are connected with feed liquor interface and liquid outlet respectively, be equipped with filter equipment on the feed liquor pipe, the cell body is bilayer structure, bilayer structure comprises inner shell and shell, forms solution storage chamber between inner shell and the shell, is equipped with a plurality of heating pipes on the diapire of shell, liquid outlet and feed liquor interface all are linked together with the inner chamber of inner shell, be equipped with a plurality of support stones on the inner wall of inner shell. The beneficial effects of the utility model are that: the pickling is effectual, and the pickle is heated evenly, the constancy of temperature, keep warm effectual, the security is high, the belted steel pickling is abundant, has still avoided belted steel and inner shell direct contact and has harmd belted steel.

Description

a pickling tank

technical field

The utility model relates to the field of strip steel production equipment, in particular to a pickling tank.

Background technique

Strip steel is a narrow and long steel plate produced by steel rolling enterprises to meet the needs of various metal or mechanical products. Strip steel is generally supplied in coils and is very convenient to process. It is widely used in the metal processing industry; the processing technology of strip steel is generally It needs to be pickled, so the strip steel production line is equipped with a pickling tank. In the process of strip steel production, the workpiece is first sent to the pickling tank for pickling, and the oxide layer and rust on the surface of the workpiece are removed by acid liquid. Continue processing.

At present, the existing pickling tank usually adopts the method of setting a heating pipe in the tank to directly heat the acid liquid. After a long time of use, the acid liquid is easy to corrode the heating pipe and cause damage to the heating pipe. In addition, the turbulent degree of the pickling solution in the existing pickling tank is low, resulting in slow contact and diffusion speed between the pickling solution and the steel strip, and poor pickling effect. When the strip is pickled in the pickling tank, it will collide with the pickling tank, which will easily damage the pickling tank and the strip.

Utility model content

The technical problem to be solved by the utility model is to provide a method that can increase the turbulent flow of the pickling solution, has a good pickling effect, the pickling solution is heated evenly, the heating pipe will not be corroded by the acid solution, the strip steel is fully pickled, and can avoid The pickling tank where the strip steel is in direct contact with the inner shell and damages the strip steel.

The technical scheme of the utility model for solving the above-mentioned technical problems is as follows: a pickling tank, including a tank body, a pickling liquid circulation device, a tank cover, a pH meter, and a thermometer; the upper end of the tank body side wall and the lower end of the tank body side wall are respectively There is a liquid outlet interface and a liquid inlet interface; the pickling liquid circulation device includes a liquid inlet pipe, a liquid outlet pipe, and a circulation pump; one end of the liquid inlet pipe and one end of the liquid outlet pipe are connected to the circulation pump, and the other end of the liquid inlet pipe One end and the other end of the liquid outlet pipe are respectively connected with the liquid inlet port and the liquid outlet port; the liquid inlet pipe is provided with a filter device; the tank body has a double-layer structure; the double-layer structure is composed of an inner shell and an outer shell, and the inner shell and the outer shell A solution storage chamber is formed between them, and a number of heating pipes are arranged on the bottom wall of the outer shell; a heat insulating layer is arranged on the inner wall of the outer shell; both the liquid outlet interface and the liquid inlet interface are connected with the inner cavity of the inner shell; Features multiple topstones.

The beneficial effect of the utility model is that: the pickling liquid in the inner shell is repeatedly circulated through the pickling liquid circulation device, the contact and diffusion speed of the pickling liquid and the strip steel are accelerated, the turbulence degree of the acid liquid is improved, and the pickling is strengthened. To improve the pickling effect of the tank, the tank body is set in a double-layer structure, and the heating tube is placed in the solution storage chamber, which can avoid the damage of the heating tube caused by the direct contact between the pickling liquid and the heating tube. In addition, by heating the water in the solution storage cavity , the water transfers the temperature to the pickling liquid to complete the heating of the pickling liquid, so that the pickling liquid is heated evenly and the temperature is constant. The heat insulation layer set on the inner wall of the shell can avoid heat exchange between the shell and the outside world. It can not only prevent the outer shell from being scalded, but also prevent the temperature from spreading outward. The support stone set in the inner shell is used to support the running strip steel, so that the strip steel can be fully pickled, and in addition, it avoids damage caused by direct contact with the inner shell strip steel.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Furthermore, the liquid outlet interface is located above the liquid level line of the pickling liquid in the inner shell; the liquid inlet interface is close to the bottom wall of the inner shell.

The further beneficial effect of adopting the above is that it is convenient to carry out the circulation of the pickling solution.

Further, the liquid inlet pipe is provided with a branch pipe connected with the liquid inlet pipe; the branch pipe is provided with a control valve; the other end of the branch pipe is connected to a waste water recovery and treatment device.

The further beneficial effect of adopting the above is that it is convenient to discharge sewage, and no additional sewage discharge interface is needed to avoid polluting the environment.

Further, right-angle grooves are provided on the supporting stones, and the bottom surfaces of the right-angled grooves of the plurality of supporting stones are all on the same horizontal plane.

The further beneficial effect of adopting the above is: it is used to support the running strip steel, so that the strip steel is fully pickled, and avoids direct contact with the inner shell to damage the strip steel.

Further, a surrounding frame is arranged around the upper end of the shell; a water tank is formed between the surrounding frame and the shell;

The further beneficial effect of adopting the above is: preventing gas overflow during the pickling process.

Further, several transverse ribs and longitudinal ribs are provided on the outer wall of the shell.

The further beneficial effect of adopting the above is that the strength of the casing is enhanced.

Further, several reinforcing ribs are provided on the upper end of the inner wall of the outer shell; the edge of the inner shell abuts against the reinforcing ribs.

The further beneficial effect of adopting the above is that the stability of the joint between the inner shell and the outer shell is improved.

Further, the outer shell is provided with an exhaust port; the exhaust port communicates with the inner cavity of the inner shell; the exhaust port is located above the liquid level line of the pickling liquid in the inner shell; the exhaust port is connected to the gas purification device.

The further beneficial effect of adopting the above is that it is convenient to discharge the gas generated in the pickling process and avoid polluting the environment.

Further, the outer shell is provided with a pickling liquid supply port; the pickling liquid supply port communicates with the inner cavity of the inner shell.

The further beneficial effect of adopting the above is that it is convenient to inject pickling solution into the inner shell.

Furthermore, the circulation pump adopts a pump with strong acid resistance.

The further beneficial effect of adopting the above is that it can adapt to acidic environment.

Description of drawings

Fig. 1 is the structural representation of pickling tank described in the utility model;

Fig. 2 is a sectional view of the pickling tank described in the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Tank body, 110, inner shell, 120, outer shell, 121, transverse rib, 122, longitudinal rib, 123, reinforcing rib, 124, exhaust port, 125, pickling solution supply port, 126, heat insulation layer, 130, Solution storage chamber, 140, heating pipe, 2, pickling liquid circulation device, 210, liquid inlet pipe, 220, liquid outlet pipe, 230, circulation pump, 3, tank cover, 4, liquid outlet interface, 5, liquid inlet interface , 6, support stone, 610, right-angle groove, 7, branch pipe, 8, control valve, 9, surrounding frame, 10, water tank, 11, filter device.

detailed description

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figures 1 and 2, a pickling tank includes a tank body 1, a pickling liquid circulation device 2, a tank cover 3, a pH meter, and a thermometer; the upper end of the side wall of the tank body 1 and the side wall of the tank body 1 The lower end is respectively provided with a liquid outlet interface 4 and an inlet interface 5; the pickling liquid circulation device 2 includes an inlet pipe 210, an outlet pipe 220, and a circulating pump 230; one end of the inlet pipe 210 and one end of the outlet pipe 220 are connected to the The circulating pump 230 is connected, and the other end of the liquid inlet pipe 210 and the other end of the liquid outlet pipe 220 are connected with the liquid inlet port 5 and the liquid outlet port 4 respectively; in this embodiment, the circulating pump 230 adopts a pump with strong acid resistance, The inlet pipe 210 is provided with a filtering device 11, which can filter impurities in the pickling solution and prolong the service life of the circulation pump 230; the tank body 1 has a double-layer structure; the double-layer structure is composed of an inner shell 110 and an outer shell 120, A solution storage chamber 130 is formed between the inner shell 110 and the outer shell 120, and the bottom wall of the shell 120 is provided with several heating pipes 140; the inner wall of the shell 120 is provided with a heat insulating layer 126; The inner cavity of the inner shell 110 is connected; the inner wall of the inner shell 110 is provided with a plurality of supporting stones 6 .

The liquid outlet interface 4 is located above the liquid level line of the pickling liquid in the inner shell 110 ; the liquid inlet interface 5 is close to the bottom wall of the inner shell 110 .

The liquid inlet pipe 210 is provided with a branch pipe 7 communicating with the liquid inlet pipe 210; the branch pipe 7 is provided with a control valve 8; the other end of the branch pipe 7 is connected to a waste water recovery and treatment device.

Right-angled grooves 610 are provided on the topstone 6, and the bottom surfaces of the right-angled grooves 610 of multiple topstones 6 are all on the same horizontal plane.

A surrounding frame 9 is arranged around the upper end of the casing 120; a water tank 10 is formed between the surrounding frame 9 and the casing 120;

Several transverse ribs 121 and longitudinal ribs 122 are provided on the outer wall of the shell 120 .

The upper end of the inner wall of the outer shell 120 is provided with several reinforcing ribs 123 ; the edge of the inner shell 110 abuts against the reinforcing ribs 123 .

The outer shell 120 is provided with an exhaust port 124; the exhaust port 124 communicates with the inner cavity of the inner shell 110; the exhaust port 124 is located above the liquid level line of the pickling solution in the inner shell 110; the exhaust port 124 is connected to the gas purification device .

The outer shell 120 is provided with a pickling solution supply interface 125 ; the pickling solution supply interface 125 communicates with the inner cavity of the inner shell 110 .

In the pickling tank of the utility model, the pickling solution in the inner shell 110 is repeatedly circulated through the pickling solution circulation device 2, so as to speed up the contact and diffusion speed of the pickling solution and the strip steel, improve the turbulence degree of the acid solution, and strengthen the pickling solution. For the pickling effect of the pickling tank, the tank body 1 is arranged in a double-layer structure, and the heating tube 140 is placed in the solution storage chamber 130, which can avoid the damage of the heating tube 140 caused by the direct contact between the pickling liquid and the heating tube 140. Heating the water in the solution storage chamber 130, and the water transfers the temperature to the pickling solution to complete the heating of the pickling solution, so that the pickling solution is heated evenly and the temperature is constant. , can prevent the outer shell 120 from exchanging heat with the outside world, which can prevent the outer shell 120 from scalding people and prevent the temperature from spreading outward. The support stone 6 set in the inner shell 110 is used to support the running strip steel, so that the strip steel acid In addition, it avoids direct contact with the inner shell 110 and damages the steel strip.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. Connected, or integrated; may be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediary, and may be an internal communication between two elements or an interactive relationship between two elements, unless otherwise stated Clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (10)

1. a kind of descaling bath is it is characterised in that include cell body (1), pickling liquid circulating device (2), groove lid (3), ph meter, temperature Meter；The lower end of the upper end of described cell body (1) side wall and cell body (1) side wall is respectively equipped with out liquid interface (4) and enters liquid interface (5)； Described pickling liquid circulating device (2) includes feed tube (210), drain pipe (220), circulating pump (230)；Described feed tube (210) One end be all connected with described circulating pump (230) with one end of described drain pipe (220), described feed tube (210) another End and the other end of described drain pipe (220) respectively with enter liquid interface (5) and go out liquid interface (4) and be connected；Described feed tube (210) it is provided with filter (11)；Described cell body (1) is in double-decker；Described double-decker is by inner casing (110) and shell (120) form, between described inner casing (110) and shell (120), form solution storage chamber (130), the diapire of described shell (120) It is provided with some heating tubes (140)；The inwall of described shell (120) is provided with thermal insulation layer (126)；Described go out liquid interface (4) and Enter the intracavity inter-connection all with inner casing (110) for the liquid interface (5)；The inwall of described inner casing (110) is provided with multiple supports stone (6).

2. a kind of descaling bath according to claim 1 it is characterised in that described go out liquid interface (4) be located at described inner casing (110) more than the liquid level line of interior pickle；Described enter liquid interface (5) near described inner casing (110) diapire.

3. a kind of descaling bath according to claim 1 it is characterised in that described feed tube (210) be provided with described enter The branched pipe (7) that liquid pipe (210) is connected；Described branched pipe (7) is provided with control valve (8)；Described branched pipe (7) other end is even Connect waste-water recovering treater.

4. a kind of descaling bath according to claim 1 is it is characterised in that described support stone (6) is provided with right angle groove (610), the bottom surface of the described right angle groove (610) of multiple support stones (6) is all in same level.

5. a kind of descaling bath according to claim 1 is it is characterised in that the surrounding edge of described shell (120) upper end sets There is peripheral frame (9)；Tank (10) is constituted between described peripheral frame (9) and described shell (120)；The surrounding of described groove lid (3) be located in In described tank (10).

6. according to claim 1 or 5 a kind of descaling bath it is characterised in that described shell (120) if outer wall be provided with Dry horizontal bar (121) and vertical muscle (122).

7. a kind of descaling bath according to claim 6 it is characterised in that described shell (120) if inwall upper end be provided with Dry reinforcement (123)；The edge of described inner casing (110) is connected on reinforcement (123).

8. a kind of descaling bath according to claim 7 is it is characterised in that described shell (120) is provided with exhaust port (124)；Described exhaust port (124) and the intracavity inter-connection of described inner casing (110)；Described exhaust port (124) is located at described More than the liquid level line of the interior pickle of inner casing (110)；Described exhaust port (124) connects gas cleaning plant.

9. a kind of descaling bath according to claim 8 is it is characterised in that described shell (120) is provided with pickle supply Interface (125)；Described pickle supplies the intracavity inter-connection of interface (125) and described inner casing (110).

10. a kind of descaling bath according to claim 1 is it is characterised in that described circulating pump (230) adopts acid resistance strong Pump.