CN213803998U - Purging device for removing residual acid in pickling process - Google Patents

Abstract

A purging device for removing residual acid in an acid pickling process belongs to the technical field of plate and strip acid pickling. The utility model discloses can using water wisely, reduce cost has reduced the loss of equipment and personnel's working strength to do benefit to the environmental protection, also can make the whole pickling of panel clean thoroughly more, the effect is better. The utility model discloses a sweep subassembly and atomizing subassembly, its characterized in that: the blowing component comprises an air inlet pipe, an acid return groove, a first air knife support and a second air knife support, the air inlet pipe is fixed to the acid return groove, an opening is formed in one end of the air inlet pipe, one end of the first air knife support is connected to one side of the air inlet pipe through a first adjusting mechanism capable of adjusting the first air knife support angle and lifting, one end of the second air knife support is connected to the other side of the air inlet pipe through a second adjusting mechanism capable of adjusting the second air knife support angle and lifting, and the first air knife support and the second air knife support are both fixed with air knives.

Description

Purging device for removing residual acid in pickling process

Technical Field

The utility model belongs to the technical field of plate and strip pickling, in particular to a purging device for removing residual acid in a pickling process.

Background

The shot blasting and pickling machine is mainly used for removing surface oxide scales of the titanium belt and the plate after hot rolling and heat treatment. The process section is pickled by hydrofluoric acid and nitric acid according to a certain proportion, wherein the length of the pickling process section is 38m, and the pickling process comprises a pre-cleaning, pickling, scrubbing, cleaning, drying and pickling circulation system. The plate cleaning method comprises the steps that an acid cleaning section consists of three stages of acid cleaning closed covers which are respectively independent circulating heating systems, a cleaning section also consists of three stages of cleaning closed covers, each stage of cleaning section is provided with an independent circulating system, the water for cleaning each stage needs to be replaced periodically due to process requirements, the replacement standard is the acid-containing condition (electric conductivity) in the water, at present, the plate and the strip directly enter a water cleaning closed cover section through a simple acid isolation rubber after passing through the three stages of acid cleaning closed covers, partial residual acid can be contained on the surface, the residual acid is cleaned through the three stages of water cleaning, whether the plate surface is cleaned or not mainly depends on the quality of cleaning water, the quality of the cleaning water is mainly influenced by the fact that the plate surface carries the residual acid into the water after passing through the acid cleaning section, the plate type and other problems can not remove a large amount of residual acid on the plate surface only by the acid isolation rubber, the cleaning water needs to be replaced quickly, and the acid content in the replaced cleaning water is too high, the treatment pressure of the power system for acid-containing wastewater is increased (zero discharge standard and treatment cost is increased), and water and acid liquor are wasted.

Disclosure of Invention

Aiming at the problems, the utility model makes up the defects of the prior art and provides a purging device for removing residual acid in the pickling process; the utility model discloses can reduce the water changing number of times of pickling in-process washing water pitcher, the using water wisely still reduces the quantity of acid, and reduce cost has reduced waste water treatment's pressure simultaneously, is of value to the environmental protection.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

The utility model provides a be used for removing sweep device of incomplete acid among pickling process, including sweeping subassembly and atomization component, its characterized in that: the blowing component comprises an air inlet pipe, an acid return groove, a first air knife support and a second air knife support, the air inlet pipe is fixed on the acid return groove, one end of the air inlet pipe is provided with an opening, one end of the first air knife support is connected to one side of the air inlet pipe through a first adjusting mechanism capable of adjusting a first air knife support angle and lifting, one end of the second air knife support is connected to the other side of the air inlet pipe through a second adjusting mechanism capable of adjusting a second air knife support angle and lifting, the first air knife support and the second air knife support are both provided with air knives, one ends of the air knives are provided with openings, the other ends of the air knives are connected with the air inlet pipe through a connecting hose, one side of the acid return groove is provided with an acid return hole, the atomizing component comprises an atomizing water inlet pipe and a water return groove, and the atomizing water inlet pipe is fixed on the water return groove, the one end of atomizing inlet tube has the opening, be provided with the atomizing nozzle on the atomizing inlet tube, one side of return water groove is provided with the return water hole.

Preferably, the end of the air knife with the opening is of a flat structure and is a flat opening.

The beneficial effects of the utility model.

The utility model discloses can reduce the water changing number of times that washs the water pitcher, the using water wisely reduces sour quantity, and reduce cost has reduced the acid content in pickling cleaning water, has increased the live time of wasing water, has reduced the emission of wasing the sour waste water that contains, alleviates driving system and handles the pressure that contains sour waste water, has reduced the loss of equipment and personnel's working strength to do benefit to the environmental protection, also can make the whole pickling of panel thoroughly clean, the effect is better.

Drawings

In order to make the technical problem, technical scheme and beneficial effect that the utility model solved more clearly understand, it is right to combine the attached drawing and detailed description mode below the utility model discloses further detailed description. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

Fig. 1 is a top view of the overall structure of the present invention.

Fig. 2 is a schematic view of the air knife of the present invention.

The labels in the figure are: 1 is an air inlet pipe, 2 is an acid return groove, 3 is a first air knife support, 4 is a second air knife support, 5 is a first adjusting mechanism, 6 is a second adjusting mechanism, 7 is an air knife, 8 is a connecting hose, 9 is an acid return hole, 10 is an atomizing water inlet pipe, 11 is a water return groove, 12 is an atomizing nozzle, 13 is a water return hole, 14 is a three-stage acid washing closed cover, and 15 is a one-stage water washing closed cover.

Detailed Description

The device is shown by combining the attached drawing and comprises a blowing component and an atomizing component, wherein the blowing component comprises an air inlet pipe 1, an acid return groove 2, a first air knife support 3 and a second air knife support 4, the air inlet pipe 1 is fixed on the acid return groove 2, one end of the air inlet pipe 1 is provided with an opening for inputting compressed air to provide blowing air for the blowing component, one end of the first air knife support 3 is connected to one side of the air inlet pipe 1 through a first adjusting mechanism 5 capable of adjusting the angle and the lifting of the first air knife support 3, one end of the second air knife support 4 is connected to the other side of the air inlet pipe 1 through a second adjusting mechanism 6 capable of adjusting the angle and the lifting of the second air knife support 4, air knives 7 are fixed on the first air knife support 3 and the second air knife support 4, one ends of the air knives 7 are of flat structures and are flat openings, the effective area of air outlet can be increased through the flat openings, the other ends of the air knives 7 are connected with the air inlet pipe 1 through a connecting hose 8, the purpose of using the hose for the connecting hose 8 is to change the relative positions of the first air knife support 3 and the second air knife support 4 and the air inlet pipe 1, adjust the angles and the lifting of the first air knife support 3 and the second air knife support 4 by adjusting the first adjusting mechanism 5 and the second adjusting mechanism 6, enable the first air knife support 3 and the second air knife support 4 to mutually form a herringbone shape, and mutually form a herringbone shape to ensure that the purged acid liquid can flow into the acid return groove 2 from two sides of the plate instead of flowing back against the direction in which the plate enters, so as to prevent the acid liquid from accumulating more and ensure that the distance between the air knife 7 and the plate surface of the plate and strip is adjusted to a proper height, so that the air knife 7 and the plate surface of the plate and strip can have a certain distance, so that the purging effect is better, when the plate reaches the purging assembly after passing through the three-stage acid cleaning outlet, the compressed air enters the air inlet pipe 1 and enters the air knife 7 through the connecting hose 8, the plate surface of the air outlet of the air knife 7 is purged with the acid liquid through the opening of the air knife 7, sweep the acidizing fluid from panel both sides to returning in the sour groove 2, it is provided with acid hole 9 to return in one side of tertiary pickling export in sour groove 2 to return, the acidizing fluid that sweeps in acid groove 2 returns to tertiary pickling airtight cover 14 through acid hole 9, make the acidizing fluid can recycle, reduce the quantity of acid, therefore, the cost is reduced, and can greatly reduced the residual acid volume of face, and then reduce the acid content that gets into one-level wash water, it is cleaner to make washing water, can reduce the water change number of times that washs the water pitcher, the using water wisely, alleviate the pressure (manpower, the medicament, equipment loss) that driving system handled the acid-containing waste water, and the environmental protection is facilitated.

The atomization component comprises an atomization water inlet pipe 10 and a return water tank 11, the atomization water inlet pipe 10 is fixed on the return water tank 11, one end of the atomization water inlet pipe 10 is provided with an opening, the atomization water inlet pipe 10 is connected with a one-level water washing spray pipeline valve through the opening end, the valve is opened to enable atomization water to enter the atomization water inlet pipe 10 from the one-level water washing spray pipeline, an atomization nozzle 12 is arranged on the atomization water inlet pipe 10, the water entering the atomization water inlet pipe 10 is sprayed onto the plate surface of a plate and strip material through atomization of the atomization nozzle 12 to preclean the plate, the sprayed atomization water flows into the return water tank 11 from the plate surface, one side of the return water tank 11 is provided with a return water hole 13, the water flowing into the return water tank 11 can flow back into the one-level water washing closed cover 15 through the return water tank 11, circulation use of the atomization is achieved, humidity of the plate surface is increased through a water spraying atomization method, and subsequent cleaning work is facilitated, the whole plate is cleaned and washed thoroughly, the effect is better, and the cleaning effect of splashing the residual pickling on the air knife 7 can be achieved.

It should be understood that the above detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.

Claims (2)

1. A sweep device that is used for removing residual acid in pickling process, is including sweeping subassembly and atomizing subassembly, its characterized in that: the blowing component comprises an air inlet pipe (1), an acid return groove (2), a first air knife support (3) and a second air knife support (4), the air inlet pipe (1) is fixed on the acid return groove (2), an opening is formed in one end of the air inlet pipe (1), one end of the first air knife support (3) is connected to one side of the air inlet pipe (1) through a first adjusting mechanism (5) capable of adjusting the angle and the lifting of the first air knife support (3), one end of the second air knife support (4) is connected to the other side of the air inlet pipe (1) through a second adjusting mechanism (6) capable of adjusting the angle and the lifting of the second air knife support (4), air knives (7) are fixed on the first air knife support (3) and the second air knife support (4), one end of each air knife (7) is provided with an opening, and the other end of each air knife (7) is connected with the air inlet pipe (1) through a connecting hose (8), one side of acid return groove (2) is provided with acid return hole (9), atomizing subassembly includes atomizing inlet tube (10), return water groove (11), atomizing inlet tube (10) are fixed on return water groove (11), the one end of atomizing inlet tube (10) has the opening, be provided with atomizing nozzle (12) on atomizing inlet tube (10), one side of return water groove (11) is provided with return water hole (13).

2. The purging device for removing residual acid in the pickling process according to claim 1, wherein: the end of the air knife (7) with the opening is of a flat structure and is provided with a flat opening.

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