An acid pickling device and process for improving the efficiency and quality of titanium anode production

Abstract

The application discloses an acid pickling device and process for improving the efficiency and quality of titanium anode production. The acid pickling device comprises a support frame composed of a support net arranged horizontally and support plates fixed vertically at opposite ends of the support net. A plurality of placement plates for placing products to be pickled are fixed at intervals above the support net on the support frame. Each placement plate is provided with a plurality of columns of water filtering holes and fixing holes arranged alternately. The fixing holes are used for inserting the products to be pickled. The acid pickling process completely removes the iron-containing impurities and oxide scales on the surfaces of the products to be pickled inserted into the acid pickling device. Then, the floating dust and other impurities on the surfaces of the acid pickling device and the products to be pickled are washed clean by using a high-pressure water gun. Finally, the products are placed in a pure water area for soaking. After soaking, the products are taken out and dried. The acid pickling device combined with the acid pickling process is used for acid treatment of the products, which ensures uniform acid pickling of the products, saves time, and improves the acid pickling quality and efficiency of the titanium anode.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of titanium anode material processing, and particularly relates to an acid pickling device and process for improving the production efficiency and quality of titanium anodes. BACKGROUND

[0002] With the rapid development of science and technology, people's living standards are improving, and the pace of life is accelerating, and people's awareness of physical health and clean and comfortable life is also increasing; under this opportunity, the market for civilian sterilization and disinfection has expanded rapidly. In the civilian market, sterilization and disinfection devices have special appearance shapes, low prices, high sterilization efficiency, and large market demand, so titanium anodes should have different shapes, small areas, low prices, high catalytic activity, and high production efficiency.

[0003] The preparation process of titanium anodes includes sand blasting, type checking, mechanical cutting forming (cold working or laser cutting), acid pickling, brushing, and sintering, and has many preparation processes, a very long processing time, and a very high preparation cost. The sand blasting process has high cost and a long time; the acid pickling process of large-area titanium materials is relatively fast, but the titanium anodes used in the civilian consumer market are small in size, generally ranging from 5 cm to 30 cm in length, from 1 cm to 20 cm in width, and from 0.5 mm to 3 mm in thickness, and have various shapes. In the acid pickling process, if the titanium materials are placed in a titanium frame in an orderly manner, a very long time is consumed, the acid pickling efficiency is very low, and the titanium materials need to be removed from the titanium frame after acid pickling to remove floating dust on the surface of the titanium materials, which consumes more time; if the titanium materials are placed in the frame in a random and disordered manner, the titanium materials are seriously overlapped, more than 35% of the titanium materials cannot be completely acid pickled, and about 10% of the titanium materials are scratched, the acid pickling quality is very poor, and the cost is very high. The number of titanium anodes used in the civilian sterilization and disinfection market is very large, and therefore, the primary task is to solve the problem of how to improve the production efficiency and production quality of titanium anodes and reduce the production cost, and the best way is to compensate for and optimize the key process that causes low production efficiency and poor production quality of titanium anodes.

[0004] Therefore, the present application provides an acid pickling device and process for improving the production efficiency and quality of titanium anodes to solve the above technical problems. SUMMARY

[0005] The acid pickling device and process for improving the efficiency and quality of titanium anode production of the present application mainly solve the acid treatment problem of pickling products in the following size range (5 cm≤length≤30 cm, 1 cm≤width≤20 cm, 0.5 mm≤thickness≤3 mm). The acid pickling device separates and fixes the pickling products by providing a plurality of placement plates on the support frame and a plurality of fixed channels on the placement plates, and then combines the steps of the acid pickling process to acid treat the pickling products. The present application has the ability to separate and fix the pickling products by providing a plurality of fixed channels on the placement plates, and uses the acid pickling process to ensure the pickling efficiency and quality of the pickling products.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] An acid pickling device for improving the efficiency and quality of titanium anode production, the acid pickling device comprising a support frame composed of a horizontally arranged support net and support plates vertically fixed at opposite ends of the support net, a plurality of groups of placement plates for placing products to be pickled are fixedly arranged on the support frame above the support net, each of the placement plates is provided with a plurality of columns of alternately arranged water filtering holes and fixed channels, and the fixed channels are used for inserting the products to be pickled.

[0008] Further, the placement plates are two groups and are distributed in upper and lower layers, and the two groups of placement plates are oppositely arranged to make the positions of the fixed channels and water filtering holes in the two groups of placement plates correspond one by one, so as to ensure that the pickling products can be smoothly inserted into the fixed channels and not be scratched.

[0009] Further, the distance between the support net and the upper placement plate is 1 / 5-2 / 5 of the pickling product, and the distance between the two groups of placement plates is 1 / 3-2 / 3 of the pickling product.

[0010] Further, the placement plates are rectangular structures, and the water filtering holes and fixed channels are alternately arranged along the length direction of the placement plates.

[0011] Further, a plurality of fixed channels are arranged between any two adjacent water filtering holes, and a plurality of fixed channels are equidistantly arranged along the width direction of the placement plate, and the distance between the fixed channels is 3-5 mm.

[0012] Further, the water filtering holes and fixed channels are rectangular holes, and the length of the fixed channel is greater than the width of the pickling product, and the width of the fixed channel is greater than the thickness of the pickling product.

[0013] Further, the support plates are back-shaped plate structures, and inner walls of the support plates are provided with multiple groups of embedded holes opposite to each other, for welding the support net and the placing plates between the two support plates.

[0014] Further, the pickling device is made of pure titanium, and the support net, the support plates and the placing plates are subjected to heat shaping furnace shaping treatment, the shaping temperature is 650-800 DEG C, and the time is 5-8h, so as to ensure the flatness of the pickling device and thick oxide skin on the surface of the material of the pickling device, wherein the flatness is to make the fixed holes of the upper and lower two groups of placing plates one-to-one corresponding, so as to ensure that the pickling products can be smoothly inserted into the fixed holes and are not scratched, and the thick oxide skin on the surface of the material of the pickling device is to ensure the corrosion resistance of the pickling device and the long service life of the pickling device.

[0015] A pickling process for improving the efficiency and quality of titanium anode production based on the pickling device for improving the efficiency and quality of titanium anode production according to any one of claims 1-8, the pickling process comprising the following steps:

[0016] Step 1: vertically insert multiple products to be pickled into the fixed holes of the placing plates in sequence until the bottom of each product to be pickled is in contact with the support net, and then place the pickling device containing the products to be pickled in the pp tank containing the mixed solution for soaking, so as to completely remove the iron impurities;

[0017] Step 2: transfer the pickling device soaked in step 1 to the pickling tank containing the oxalic acid mixed solution, heat the oxalic acid mixed solution to boiling, and soak under the condition of boiling, so as to completely remove the oxide skin on the surface of the pickling products;

[0018] Step 3: take out the pickling device and place it on the flushing platform, and flush the pickling device and the pickling products with a high-pressure water gun;

[0019] Step 4: transfer the pickling device to the pure water pool for soaking, and take out the pickling device and place it in the drying area after soaking is completed, and wait for natural drying.

[0020] Further, the concentration of the mixed solution in step 1 is 10% hydrochloric acid + 3% hydrogen peroxide, and the soaking time is 8-10h; the concentration of the oxalic acid mixed solution in step 2 is 5%-10%, and the soaking time is 2-5h; the pressure of the high-pressure water gun in step 3 is 2-3MPa.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1. The acid pickling device for improving the efficiency and quality of titanium anode production, the acid pickling device is provided with a support net and a plurality of placing plates on the support frame, the products to be pickled are inserted into the fixed holes of the placing plates for batch pickling, so that the acid treatment efficiency is improved, 3 / 4 of the time is saved, and the hydrochloric acid + hydrogen peroxide mixed solution and the oxalic acid mixed solution can fully contact the products by being separately inserted, so that the pickling of each pickling product is uniform and the quality is excellent.

[0023] 2. The acid pickling process for improving the efficiency and quality of titanium anode production, the acid pickling process is acid etching of the products to be pickled, in order to remove all iron impurities and oxide scales on the surface of the products, after the oxide scales on the surface of the pickling products are removed, the high-pressure water gun is used to flush the floating dust and other impurities on the surface of the pickling device and the products, then the pickling device is placed in a pure water pool for soaking, the process is uniform, the quality of pickling is improved, the products are not damaged during pickling, the pickling efficiency is improved, and the cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings incorporated into the specification and forming a part thereof, together with the specification, serve to explain the principles of the present application.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Fig. 1 It is an intuitive diagram of the acid pickling device of the present application;

[0027] Fig. 2 It is a placing plate diagram of the acid pickling device of the present application;

[0028] Fig. 3 It is a support plate diagram of the acid pickling device.

[0029] Wherein: 1 is a support frame; 2 is a placing plate; 11 is a support net; 12 is a support plate; 21 is a water filtering hole; 22 is a fixed hole; 121 is an embedded hole. DETAILED DESCRIPTION

[0030] Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Rather, they are merely examples of devices consistent with some aspects of the present application, as detailed in the appended claims.

[0031] Please refer to Figs. 1-3As shown, the acid pickling device for improving the production efficiency and quality of titanium anode comprises a support frame 1 composed of a support net 11 arranged horizontally and support plates 12 fixed vertically at opposite ends of the support net 11, wherein the support net 11 is a titanium net and the mesh structure is not limited, the support net 11 is used to improve the flowability of water or solution and the supportability to the products to be pickled, a plurality of groups of placing plates 2 for placing the products to be pickled are fixed at intervals above the support net 11 on the support frame 1, and the support net 11 and the plurality of groups of placing plates 2 are of the same size, a plurality of rows of filter water holes 21 and fixed holes 22 arranged alternately are arranged on each placing plate 2, and the fixed holes 22 are used for inserting the products to be pickled.

[0032] The placing plates 2 are two groups and are distributed in upper and lower layers, the two groups of placing plates 2 are of the same structure and size and are arranged opposite to each other, so that the fixed holes 22 and the filter water holes 21 in the two groups of placing plates 2 are one-to-one corresponding in position, thereby ensuring that the products to be pickled can be smoothly inserted into the fixed holes 22 and are not scratched. The placing plate 2 is of a rectangular structure, the placing plate 2 contains a plurality of rectangular filter water holes 21 and a plurality of rectangular fixed holes 22 for fixing the products, the filter water holes 21 and the fixed holes 22 are arranged alternately along the length direction of the placing plate 2, a plurality of fixed holes 22 are arranged between any adjacent two filter water holes 21, and the plurality of fixed holes 22 are equidistantly arranged along the width direction of the placing plate 2 with a spacing of 3-5 mm; the length of the fixed hole 22 is greater than the width of the product to be pickled, the width of the fixed hole 22 is greater than the thickness of the product to be pickled, and the length and width of the fixed hole 22 are only 2-5 mm greater than the width and thickness of the product to be pickled, in addition, the specific size of the fixed hole 22 can be adjusted according to the appearance size of the product to be pickled. The length of the filter water hole 21 is less than the width of the placing plate 2 of the acid pickling device, and the width of the filter water hole 21 is 1-3 mm, in addition, the specific size of the filter water hole 21 can be adjusted according to the appearance size of the product to be pickled.

[0033] The distance between the support net 11 and the upper placing plate 2 is 1 / 5-2 / 5 of the product to be pickled, and the optimal distance is 1 / 4 of the product to be pickled, and the distance between the two groups of placing plates 2 is 1 / 3-2 / 3 of the product to be pickled, and the optimal distance is 1 / 2 of the product to be pickled.

[0034] The support plate 12 is a back-shaped plate structure, which is made of titanium and is formed by laser cutting or stamping, and is provided with a plurality of groups of embedded holes 121 opposite to each other on the inner wall, for welding the support net 11 and the plurality of groups of placing plates 2 between the two support plates 12; the support plate 12 is vertically placed, the length of the support plate 12 is greater than the width of each layer of the plurality of placing plates 2 and the support net 11, the height of the support plate 12 is greater than the sum of the length of the product to be pickled and the distance from the bottom end of the support plate 12 to the position of the support net 11, and the distance from the bottom end of the support plate 12 to the support net 11 is 2-5 cm. The support plate 12 has two functions: one is to support and fix the support net 11 and the plurality of groups of placing plates 2, and the other is to provide a handle for the staff to carry conveniently.

[0035] In addition, the pickling device is made of pure titanium, the support net 11, the support plate 12 and the placing plate 2 are all subjected to heat shaping furnace shaping treatment, the shaping temperature is 650-800℃, and the time is 5-8h, so as to ensure the flatness of the pickling device and the thick oxide skin on the surface of the material of the pickling device, wherein the flatness is to make the fixing holes of the upper and lower two groups of placing plates 2 correspond to each other, so as to ensure that the pickled product can be smoothly inserted into the fixing hole 22 and fixed without being scratched; the thick oxide skin on the surface of the material of the pickling device is to ensure the corrosion resistance of the pickling device and the long service life of the pickling device.

[0036] In the process of pickling titanium sheets, the titanium sheets to be pickled are vertically inserted into the fixing hole 22 of the placing plate 2 in sequence, until the bottom of each titanium sheet to be pickled is in contact with the support net 11, then the pickling device containing the product to be pickled is placed in a pp tank containing a mixed solution, the mixed solution is a mixture of 10% hydrochloric acid and 3% hydrogen peroxide, and the soaking time is 8-10h, so as to ensure that the iron impurities are completely removed; then the pickling device is transferred to the pickling tank, tap water is added until the liquid surface completely covers the pickling device, heating of the tap water is started, the water temperature is raised to above 75℃, oxalic acid is added, the concentration of the oxalic acid mixed solution is adjusted to 5%-10%, and heating is continued until boiling, at this time the temperature is about 95℃, the pickling device is continuously soaked under boiling conditions for 2-5h, and in the soaking process, the titanium sheet surface oxide skin is observed every half hour to see if it is completely removed, after the product surface oxide skin is completely removed, the pickling device is taken out while hot; the pickling device is placed on the flushing platform, and immediately the floating dust and other impurities on the surface of the pickling device and the pickled product are washed clean with a high-pressure water gun with a pressure of 2-3MPa; finally, the pickling device is transferred to a pure water pool for soaking, and after the preparation of the brushing process is completed, the pickling device is taken out and placed in the drying area to wait for natural drying.

[0037] An acid pickling process for improving the efficiency and quality of titanium anode production is based on acid treatment of the products to be pickled by the acid pickling device. The acid pickling device and the acid pickling process cannot be carried out independently. Only on the premise of the acid pickling device, can the acid pickling efficiency and quality of the products to be pickled be improved. Any slight change in influencing factors may affect the quality of the titanium products after pickling, and ultimately lead to changes in the performance of titanium anodes. Therefore, each process step and the parameters involved in the acid pickling device and process for improving the efficiency and quality of titanium anode production are an organic whole, and cannot be arbitrarily exchanged and modified.

[0038] The above description is merely a specific implementation of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application.

[0039] It should be understood that the present application is not limited to the above-described and described, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An acid pickling device for improving the efficiency and quality of production of titanium anodes, characterized by, The pickling device comprises a support frame (1) composed of a support net (11) arranged horizontally and support plates (12) fixed vertically at opposite ends of the support net (11), a plurality of groups of placing plates (2) for placing products to be pickled are fixedly arranged on the support frame (1) above the support net (11), each placing plate (2) is provided with a plurality of columns of water filtering holes (21) and fixing channels (22) arranged alternately, and the fixing channels (22) are used for inserting the products to be pickled; The placing plate (2) is of a rectangular structure, the water filtering holes (21) and the fixing channels (22) are arranged alternately along the length direction of the placing plate (2), the support plate (12) is of a back-shaped plate structure, the inner wall of the support plate (12) is provided with a plurality of groups of embedding holes (121) opposite to each other for welding the support net (11) and the placing plate (2) between the two support plates (12), and the back-shaped plate structure is also used for providing a handle for convenient carrying, and the size range of the product to be pickled is 5cm≤length≤30cm, 1cm≤width≤20cm, and 0.5mm≤thickness≤3mm.

2. The pickling unit for improving the efficiency and quality of titanium anodes according to claim 1, characterized in that, The placing plate (2) is of two groups and is distributed in an upper and lower layer, and the two groups of placing plates (2) are arranged opposite to each other, so that the fixing channels (22) and the water filtering holes (21) in the two groups of placing plates (2) are one-to-one corresponding in position.

3. The pickling unit for improving the efficiency and quality of titanium anodes according to claim 1, characterized in that, The distance between the support net (11) and the upper placing plate (2) is 1 / 5-2 / 5 of the size of the product to be pickled, and the distance between the two groups of placing plates (2) is 1 / 3-2 / 3 of the size of the product to be pickled.

4. The pickling unit for improving the efficiency and quality of titanium anodes according to claim 1, characterized in that, A plurality of fixing channels (22) are arranged between any two adjacent water filtering holes (21), and a plurality of the fixing channels (22) are equidistantly arranged along the width direction of the placing plate (2).

5. The pickling unit for improving the efficiency and quality of titanium anodes according to claim 1, characterized in that, The water filtering hole (21) and the fixing channel (22) are both rectangular holes, the length of the fixing channel (22) is greater than the width of the product to be pickled, and the width of the fixing channel (22) is greater than the thickness of the product to be pickled.

6. The pickling unit for improving the efficiency and quality of titanium anodes according to claim 1, characterized in that, The pickling device is made of pure titanium, and the support net (11), the support plate (12) and the placing plate (2) are all subjected to heat shaping furnace shaping treatment, the shaping temperature is 650-800℃, and the time is 5-8h.

7. A pickling process for improving the efficiency and quality of production of titanium anodes, characterized in that, The pickling device for improving the efficiency and quality of titanium anode production according to any one of claims 1-6, the pickling process comprises the following steps: Step 1: a plurality of products to be pickled are vertically inserted into the fixing channels (22) of the placing plates (2) in sequence until the bottom of each product to be pickled is in contact with the support net (11), and then the pickling device containing the products to be pickled is placed in a pp tank containing a mixed solution for soaking; Step 2: the pickling device soaked in step 1 is transferred to an acid pickling tank containing an oxalic acid mixed solution, the oxalic acid mixed solution is heated to boiling, and the pickling device is soaked under the condition of boiling; Step 3: the pickling device is taken out and placed on a flushing platform, and the pickling device and the pickled product are washed clean by a high-pressure water gun. Step 4: The acid washing device is transferred to the pure water pool for soaking, and after soaking, the acid washing device is taken out and placed in the drying area for natural drying.

8. The pickling process for improving the efficiency and quality of titanium anodes production according to claim 7, characterized in that, The concentration of the mixed solution in step 1 is 10% hydrochloric acid + 3% hydrogen peroxide, and the soaking time is 8-10h; The concentration of the oxalic acid mixed solution in step 2 is 5%-10%, and the soaking time is 2-5h; The pressure of the high-pressure water gun in step 3 is 2-3MPa.

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