CN217369504U - Pickling solution tank with nitrogen blowing function - Google Patents

Abstract

The utility model discloses a pickling solution tank with drum nitrogen function, including the cell body, its characterized in that has a plurality of evenly distributed's venthole along its circumference fixed mounting teflon pipe in the cell body bottom on the teflon pipe, and the inlet end of teflon pipe is located outside the cell body to the export of check valve is connected to the inlet end, the access connection admission line of check valve, and the admission line connects the ooff valve, and the nitrogen gas source is connected to the ooff valve. Nitrogen is blown into the pickling tank, the stirring effect is achieved, and hydrogen peroxide and concentrated sulfuric acid in the pickling tank are uniformly stirred through external force, so that the solution is fully fused. The uniform mixing of the solution in the pickling tank is ensured, the layering phenomenon of hydrogen peroxide and concentrated sulfuric acid is reduced, and the pickling capacity is improved, so that the cleaning effect is improved.

Description

Pickling solution tank with nitrogen blowing function

Technical Field

The utility model belongs to the pickling equipment in the LED production and manufacturing process, in particular to a pickling solution tank with a nitrogen blowing function.

Background

In the modern LED production process, organic substances may fall on the surface of the wafer due to the influence of environmental factors, transportation factors, production processes, etc. Before glue homogenizing operation, the wafer is required to be cleaned, the wafer is placed in the clamping plug, and then the lifting baskets are sequentially placed in a designated pickling tank by the manipulator, and the pickling cleaning effect is always a target pursued by each manufacturer. Most of the current LED manufacturing industries in China use pickling tanks with the same structure, and although the appearance design of the tank bodies is different, the overall layout and the functions are different.

The preparation method of the prior pickling solution comprises the following specific steps

Step one, injecting 3L hydrogen peroxide

Wherein the hydrogen peroxide can make carbonized organic matters form gas to be discharged.

Injecting 15L of concentrated sulfuric acid in the second step

Wherein the concentrated sulfuric acid carbonizes organic matter and the like on the chip.

Step three, opening the temperature control function in the groove

The mixed solution is controlled to be kept at a certain temperature, and the cleaning effect is promoted.

In the existing cleaning method, the density of concentrated sulfuric acid is greater than that of hydrogen peroxide, so that the concentrated sulfuric acid is deposited on the lower layer of the tank bottom, the hydrogen peroxide floats on the upper layer to form a layering phenomenon, and a uniformly distributed mixed solution cannot be formed under the condition of not depending on the external condition. The temperature difference between the upper layer and the lower layer is large, and the cleaning effect is greatly reduced.

Disclosure of Invention

The utility model discloses to prior art's shortcoming, designed a pickling solution tank with drum nitrogen function, blow in nitrogen gas through toward the descaling bath, played the effect of stirring, played hydrogen peroxide solution and concentrated sulfuric acid stirring in with the descaling bath through external force for the solution fully fuses. The uniform mixing of the solution in the pickling tank is ensured, the layering phenomenon of hydrogen peroxide and concentrated sulfuric acid is reduced, and the pickling capacity is improved, so that the cleaning effect is improved.

The utility model discloses a technical scheme as follows: the utility model provides an acid pickling solution tank with drum nitrogen function, includes the cell body, bottom along its circumference fixed mounting teflon pipe in the cell body, has a plurality of evenly distributed's venthole on the teflon pipe, and the inlet end of teflon pipe is located outside the cell body to the export of check valve is connected to the inlet end, the inlet connection admission line of check valve, and the admission line connects the ooff valve, and the nitrogen gas source is connected to the ooff valve.

On the basis of the scheme, as the optimization, a cooling pipe fixing frame is fixedly arranged in the groove body, cooling pipe fixing grooves which are arranged from top to bottom at intervals are formed in the cooling pipe fixing frame, and the Teflon pipe is fixed in the cooling pipe fixing groove at the lowest end.

On the basis of the above scheme, as preferred, the cooling tube mount includes annular upper ledge and chassis, through the riser fixed connection that a plurality of interval set up in circumference between upper ledge and the chassis, in two adjacent risers, the interior terminal surface fixed mounting cooling tube fixed slot of a riser, the outer terminal surface fixed mounting cooling tube fixed slot of another riser.

On the basis of the scheme, the cooling pipe fixing groove preferably comprises an upper spring piece and a lower spring piece, the middle of the upper spring piece is arched upwards, the middle of the lower spring piece is arched downwards, the inner ends of the upper spring piece and the lower spring piece are fixed on the vertical plate, and the outer ends of the upper spring piece and the lower spring piece are arranged at intervals.

Compared with the prior art, the utility model discloses following beneficial effect has:

nitrogen is blown into the pickling tank, the stirring effect is achieved, and hydrogen peroxide and concentrated sulfuric acid in the pickling tank are uniformly stirred through external force, so that the solution is fully fused. The uniform mixing of the solution in the pickling tank is ensured, the layering phenomenon of hydrogen peroxide and concentrated sulfuric acid is reduced, and the pickling capacity is improved, so that the cleaning effect is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of a riser;

fig. 3 is a schematic view of the mating of the chassis and riser.

Detailed Description

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

As shown in fig. 1-3, an acid pickling solution tank with nitrogen blowing function comprises a tank body, a teflon pipe 2 is fixedly installed at the bottom in the tank body along the circumferential direction of the tank body, a plurality of air outlet holes 3 which are uniformly distributed are formed in the teflon pipe, an air inlet end of the teflon pipe is located outside the tank body, the air inlet end is connected with an outlet of a check valve 1, an inlet of the check valve is connected with an air inlet pipeline, the air inlet pipeline is connected with a switch valve, and the switch valve is connected with a nitrogen gas source.

The one-way valve is a Teflon one-way pressure regulating valve and is used for controlling the flow rate of nitrogen entering the pickling tank, and when the nitrogen is introduced, the situation that the liquid medicine in the pickling tank flows back into the gas pipe due to the influence of factors such as gas pressure, pressure intensity and the like to cause equipment damage and danger is prevented through the Teflon one-way pressure regulating valve.

Through increasing the special fluorine dragon pipe in the cell body, set up the venthole on the special fluorine dragon pipe, special fluorine dragon union coupling nitrogen gas air supply realizes the drum nitrogen function, when using, blows in nitrogen gas through toward the descaling bath, has played the effect of stirring, has played hydrogen peroxide solution and concentrated sulfuric acid stirring in the descaling bath through external force for solution fully fuses. The uniform mixing of the solution in the pickling tank is ensured, the layering phenomenon of hydrogen peroxide and concentrated sulfuric acid is reduced, and the pickling capacity is improved, so that the cleaning effect is improved.

A cooling pipe fixing frame is fixedly arranged in the tank body, cooling pipe fixing grooves are formed in the cooling pipe fixing frame at intervals from top to bottom, and the Teflon pipe is fixed in the cooling pipe fixing groove at the lowest end.

The Teflon tube is fixed by the cooling tube fixing frame in the tank body, so that the installation is convenient.

The cooling pipe fixing frame comprises an annular upper frame 7 and an annular bottom frame, vertical plates 6 are fixedly connected between the upper frame and the bottom frame at intervals in the circumferential direction, in two adjacent vertical plates, a cooling pipe fixing groove is fixedly installed on the inner end face of one vertical plate, and a cooling pipe fixing groove is fixedly installed on the outer end face of the other vertical plate.

The cooling pipe fixing groove 10 comprises an upper spring piece 4 and a lower spring piece 5, the middle part of the upper spring piece arches upwards, the middle part of the lower spring piece arches downwards, the inner ends of the upper spring piece and the lower spring piece are fixed on the vertical plate, and the outer ends are arranged at intervals. When the Teflon tube is used, the Teflon tube is pressed between the upper spring piece and the lower spring piece, and the Teflon tube is convenient to install.

During specific installation, the Teflon pipe penetrates through the through hole 9 in the connecting plate 8 on the outer side or the inner side of the upper frame and extends into the bottom of the groove body, and the Teflon pipe is pressed into the corresponding cooling pipe fixing groove.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (4)

1. The utility model provides an acid pickling solution tank with nitrogen blowing function, includes the cell body, its characterized in that, bottom along its circumference fixed mounting teflon pipe in the cell body, has a plurality of evenly distributed's venthole on the teflon pipe, and the inlet end of teflon pipe is located outside the cell body to the export of check valve is connected to the inlet end, and the access connection admission line of check valve, admission line connection ooff valve, ooff valve connect the nitrogen gas source.

2. The pickling solution tank with a nitrogen blowing function as claimed in claim 1, wherein a cooling pipe fixing bracket is fixedly installed in the tank body, cooling pipe fixing grooves are formed in the cooling pipe fixing bracket at intervals from top to bottom, and the Teflon pipe is fixed in the cooling pipe fixing groove at the lowermost end.

3. The nitrogen-bubbling acid pickling solution tank according to claim 2, wherein the cooling pipe fixing frame comprises an annular upper frame and an annular lower frame, the upper frame and the lower frame are fixedly connected by a plurality of vertical plates arranged at intervals in the circumferential direction, and of the two adjacent vertical plates, the cooling pipe fixing groove is fixedly installed on the inner end surface of one vertical plate, and the cooling pipe fixing groove is fixedly installed on the outer end surface of the other vertical plate.

4. The nitrogen bubbling pickling solution tank according to claim 3, wherein the cooling pipe fixing grooves comprise an upper spring plate and a lower spring plate, the middle part of the upper spring plate is arched upward, the middle part of the lower spring plate is arched downward, the inner ends of the upper spring plate and the lower spring plate are fixed on the vertical plate, and the outer ends of the upper spring plate and the lower spring plate are arranged at intervals.

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