阅读说明：本技术 一种电解隔膜袋 (Electrolytic diaphragm bag ) 是由 郑军福 冯建华 闫德 王宗伟 王宁 齐爱荣 于 2020-12-04 设计创作，主要内容包括：本发明公开了一种电解隔膜袋,本发明的电解隔膜袋由第一隔膜布(3)、第二隔膜布(4)、第三隔膜布(5)、第四隔膜布(6)、第五隔膜布(7)从上而下依次缝合而成,所述第一隔膜布(3)、第二隔膜布(4)、第三隔膜布(5)、第四隔膜布(6)、第五隔膜布(7)的面密度依次增大,所述第一隔膜布(3)、第二隔膜布(4)、第三隔膜布(5)、第四隔膜布(6)、第五隔膜布(7)的抗渗水性、表面电阻率、透气性依次减小。本发明的电解隔膜袋结构简单,整体呈环状分布,有利于金属在阴极板上均匀电解沉积,提高电解金属的品质,从整体生产上节约生产成本,提高经济效益。(The invention discloses an electrolytic diaphragm bag which is formed by sequentially sewing a first diaphragm cloth (3), a second diaphragm cloth (4), a third diaphragm cloth (5), a fourth diaphragm cloth (6) and a fifth diaphragm cloth (7) from top to bottom, wherein the surface densities of the first diaphragm cloth (3), the second diaphragm cloth (4), the third diaphragm cloth (5), the fourth diaphragm cloth (6) and the fifth diaphragm cloth (7) are sequentially increased, and the water impermeability, the surface resistivity and the air permeability of the first diaphragm cloth (3), the second diaphragm cloth (4), the third diaphragm cloth (5), the fourth diaphragm cloth (6) and the fifth diaphragm cloth (7) are sequentially reduced. The electrolytic diaphragm bag has a simple structure, is integrally distributed in an annular shape, is beneficial to uniform electrolytic deposition of metal on a cathode plate, improves the quality of electrolytic metal, saves the production cost from the aspect of integral production, and improves the economic benefit.)

1. The electrolytic diaphragm bag is characterized by being formed by sequentially splicing and sewing a first diaphragm cloth (3), a second diaphragm cloth (4), a third diaphragm cloth (5), a fourth diaphragm cloth (6) and a fifth diaphragm cloth (7) from top to bottom after being folded in half respectively, sealing and sewing are performed on the left side and the lower side of the electrolytic diaphragm bag, the surface densities of the first diaphragm cloth (3), the second diaphragm cloth (4), the third diaphragm cloth (5), the fourth diaphragm cloth (6) and the fifth diaphragm cloth (7) are sequentially increased, and the water impermeability, the surface resistivity and the air permeability of the first diaphragm cloth (3), the second diaphragm cloth (4), the third diaphragm cloth (5), the fourth diaphragm cloth (6) and the fifth diaphragm cloth (7) are sequentially reduced.

2. The electrolysis membrane bag according to claim 1, wherein the lower edge of the first membrane cloth (3) is jointed and sewn with the upper edge of the second membrane cloth (4), the lower edge of the second membrane cloth (4) is jointed and sewn with the upper edge of the third membrane cloth (5), the lower edge of the third membrane cloth (5) is jointed and sewn with the upper edge of the fourth membrane cloth (6), the lower edge of the fourth membrane cloth (6) is jointed and sewn with the upper edge of the fifth membrane cloth (7), and the lower edge of the fifth membrane cloth (7) is sealed and sewn.

3. An electrolysis membrane bag according to claim 2, wherein the upper end of the first membrane cloth (3) is a bag opening (1), and open lifting rings (2) are sewn at two ends of the bag opening (1).

4. An electrolysis membrane bag according to claim 3, wherein the open lifting ring (2) is made of scrap material of a first membrane cloth (3), a second membrane cloth (4), a third membrane cloth (5), a fourth membrane cloth (6) and a fifth membrane cloth (7).

5. The electrolysis membrane bag according to claim 1, wherein the first membrane cloth (3), the second membrane cloth (4), the third membrane cloth (5), the fourth membrane cloth (6) and the fifth membrane cloth (7) have a width of 20-30 cm and a length of 40-50 cm.

6. The electrolytic membrane bag according to claim 1, wherein the joint sewing of the electrolytic membrane bag has 4 to 6 stitches, the stitch interval is 1 to 2mm, and the seal sewing is 3 to 5mm from the corner.

Technical Field

The invention relates to the technical field of diaphragms for electrolysis, in particular to an electrolysis diaphragm bag.

Background

In the metal electrorefining process, a diaphragm is needed to separate the cathode region and the anode region, so that the ion migration and the adhesion deposition in the electrolyte are controlled. At present, a common electrolytic diaphragm bag is of an integrated structure, and the cloth cover density, the water seepage resistance, the surface resistivity and the air permeability of the diaphragm are uniform. The metal deposited on the cathode plate by the diaphragm bag is unevenly adhered and distributed in a gradient manner, so that the quality of the electrolytic metal is influenced.

Disclosure of Invention

The invention aims to solve the problems in the prior art of diaphragm bags for metal electrolysis, and provides a diaphragm bag which is simple in structure, is very beneficial to uniform electrolytic deposition of metal on a cathode plate, and improves the quality of electrolytic metal.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an electrolysis diaphragm bag, electrolysis diaphragm bag is by first diaphragm cloth (3), second diaphragm cloth (4), third diaphragm cloth (5), fourth diaphragm cloth (6), fifth diaphragm cloth (7) from the top down splice in proper order and sew up and form, the areal density of first diaphragm cloth (3), second diaphragm cloth (4), third diaphragm cloth (5), fourth diaphragm cloth (6), fifth diaphragm cloth (7) increases in proper order, the anti-permeability nature, surface resistivity, the gas permeability of first diaphragm cloth (3), second diaphragm cloth (4), third diaphragm cloth (5), fourth diaphragm cloth (6), fifth diaphragm cloth (7) reduce in proper order.

Furthermore, the first diaphragm cloth (3), the second diaphragm cloth (4), the third diaphragm cloth (5), the fourth diaphragm cloth (6) and the fifth diaphragm cloth (7) are folded in half and then sewn in sequence from top to bottom, and the left side and the lower side of the electrolysis diaphragm bag are sealed and sewn.

Furthermore, the edge of the first diaphragm cloth (3) is jointed and sewn, the lower edge of the third diaphragm cloth (5) is jointed and sewn with the upper edge of the fourth diaphragm cloth (6), the lower edge of the fourth diaphragm cloth (6) is jointed and sewn with the upper edge of the fifth diaphragm cloth (7), and the lower edge of the fifth diaphragm cloth (7) is sealed and sewn.

Furthermore, the upper end of the first diaphragm cloth (3) is provided with a bag opening (1), and two ends of the bag opening (1) are sewed with opening lifting rings (2).

Furthermore, the opening lifting ring (2) is made of leftover materials of a first diaphragm cloth (3), a second diaphragm cloth (4), a third diaphragm cloth (5), a fourth diaphragm cloth (6) and a fifth diaphragm cloth (7).

Furthermore, the width of the first diaphragm cloth (3), the second diaphragm cloth (4), the third diaphragm cloth (5), the fourth diaphragm cloth (6) and the fifth diaphragm cloth (7) is 20-30 cm, and the length is 40-50 cm.

Furthermore, the joint sewing position (8) of the electrolytic diaphragm bag has 4-6 sewing threads, the interval between the sewing threads is 1-2 mm, and the sealing sewing is 3-5 mm away from the corner.

Compared with the prior art, the invention has the following beneficial effects: the electrolytic diaphragm bag has a simple structure, is in an annular structure and is distributed in a gradient manner, so that uniform electrolytic deposition of metal on a cathode plate is facilitated, and the quality of electrolytic metal is improved. The invention adopts the diaphragm cloth to be folded and sewed, and the diaphragm cloth forms a ready-made seal, thereby reducing the sewing times and improving the production efficiency. The sewing of the joint sewing part of the diaphragm bag is 4-6 times, the interval between the sewing lines is 1-2 mm, and the left and lower sealing openings are 3-5 mm away from the edge angle of the diaphragm cloth. The number of sewing times cannot be too large, otherwise, the service life of the sewing edge is far longer than that of the bag body, and the sewing is wasted. The sewing thread can not be too few, otherwise, the connection is not firm, liquid leakage occurs, and the sewing thread is corroded and broken.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Wherein: 1. a bag opening; 2. opening a lifting ring; 3. a diaphragm cloth; 4. a diaphragm cloth; 5. a diaphragm cloth; 6. a diaphragm cloth; 7. a diaphragm cloth; 8 joining the sewn parts.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1, an electrolytic diaphragm bag is formed by folding a first diaphragm cloth 3, a second diaphragm cloth 4, a third diaphragm cloth 5, a fourth diaphragm cloth 6 and a fifth diaphragm cloth 7 and then sequentially splicing and sewing the two pieces from top to bottom, wherein the specific sewing mode is that the lower side of the first diaphragm cloth 3 is jointed and sewn with the upper side of the second diaphragm cloth 4, the lower side of the second diaphragm cloth 4 is jointed and sewn with the upper side of the third diaphragm cloth 5, the lower side of the third diaphragm cloth 5 is jointed and sewn with the upper side of the fourth diaphragm cloth 6, the lower side of the fourth diaphragm cloth 6 is jointed and sewn with the upper side of the fifth diaphragm cloth 7, the lower side of the fifth diaphragm cloth 7 is sealed and sewn, and the left side of the electrolytic diaphragm bag is sealed and sewn. The upper end of the first diaphragm cloth 3 is a bag opening 1, two ends of the bag opening 1 are sewed with opening lifting rings 2, and the bag opening is made of diaphragm cloth leftover materials. The surface densities of the first diaphragm cloth 3, the second diaphragm cloth 4, the third diaphragm cloth 5, the fourth diaphragm cloth 6 and the fifth diaphragm cloth 7 are sequentially increased, and the water permeability resistance, the surface resistivity and the air permeability of the first diaphragm cloth 3, the second diaphragm cloth 4, the third diaphragm cloth 5, the fourth diaphragm cloth 6 and the fifth diaphragm cloth 7 are sequentially reduced.

Example 1:

the first membrane cloth 3 had an areal density of 80.71 mesh/cm and a water-barrier property of 494.7mmH₂O, surface resistivity 1045000000 ohm, air permeability 35.40mm/s, second membrane cloth 4 with surface density 91.2 mesh/square centimeter and water permeability 472.4mmH₂O, surface resistivity of 1019000000 ohm, air permeability of 31.06mm/s, surface density of 100.5 mesh/square centimeter of third diaphragm cloth 5, and water permeability resistance of 450.1mmH₂O, surface resistivity of 993000000 ohm, air permeability of 26.72mm/s, surface density of 122.6 meshes/square centimeter of fourth diaphragm cloth 6, water permeability resistance of 427.7mmH₂O, surface resistivity of 73300000 ohm, air permeability of 22.38mm/s, fifth diaphragm cloth 7 with surface density of 152.86 meshes/square centimeter and water permeability of 405.4mmH₂O, surface resistivity 47300000 ohm, air permeability 18.04mm/s,

the width of the first diaphragm cloth 3, the second diaphragm cloth 4, the third diaphragm cloth 5, the fourth diaphragm cloth 6 and the fifth diaphragm cloth 7 is 30cm, the length is 50cm, the sewing of the joint sewing part 8 of the electrolysis diaphragm bag is 6 times, the interval between the sewing lines is 2mm, and the left side and the lower side seal are 3mm away from the corners of the diaphragm cloths.

When in use, the diaphragm bag is fixed in the electrolytic cell between two anode diaphragm frames through the opening pull ring 2 on the diaphragm bag. New catholyte is always injected into the bag to start the metal electrolysis production. The electrolytic diaphragm bag has a simple structure, is in an annular structure and is distributed in a gradient manner, so that uniform electrolytic deposition of metal on a cathode plate is facilitated, and the quality of electrolytic metal is improved.