Filter mechanism for waste acid from flat glass thinning etching and operation method therefor

Abstract

Disclosed in the present invention is a filter mechanism for a waste acid from flat glass thinning etching. The filter mechanism comprises a filter shell. The filter shell comprises an upper cylinder body, a rotating part, and a lower cylinder body, wherein a feeding port is formed at the top of the upper cylinder body, and the rotating part comprises a bearing cylinder, a plurality of tubes, and a driving part; the bearing cylinder is rotationally connected to a lower end of the upper cylinder body and is communicated with the plurality of tubes on the bearing cylinder by means of a liquid outlet formed inside the upper cylinder body; the lower cylinder body is arranged at a lower end of the bearing cylinder, and the driving part for driving the bearing cylinder to rotate is arranged on the lower cylinder body; and a filter member is arranged in the upper cylinder body, and a guide cylinder is arranged on an inner wall of the upper cylinder body. The technical problems in the prior art of a relatively poor filtering effect for a waste acid generated during glass processing and the need to stop the operation of the entire device when replacing some parts of a filter mechanism, which inadvertently reduces the filtering efficiency of the filter mechanism, are solved.

Description

A filtering mechanism and operating method for waste acid from flat glass thinning and etching Technical Field

[0001] The invention relates to the technical field of glass processing, and in particular to a filtering mechanism and an operating method for waste acid produced by etching flat glass during thinning. Background Art

[0002] Flat glass, also known as white glass or clear glass, is currently thinned using physical and chemical etching methods. Chemical etching has become the mainstream method for thinning glass substrates due to its short thinning time, low equipment investment, high product yield, simple thinning solution composition, and low cost. Chemical etching primarily utilizes HF acid to react with glass, peeling the glass surface layer by layer. However, the resulting fluorosilicates adsorb on the glass surface, roughening it. They also precipitate and adhere to the inner walls of equipment pipes, clogging them. The glass thinning solution must be frequently replaced. The production process also generates a large amount of waste acid, the direct discharge of which pollutes the environment and poses a risk.

[0003] Chinese utility model CN204996238U proposes a "filtration device for waste acid from flat glass thinning and etching." This device adds a tap water flushing pipeline device to flush the filter bags before replacing them, eliminating the safety hazards posed to operators by residual acid, and ensuring safe and reliable operation. This device mainly improves the replacement efficiency of the filter bags and facilitates the operation of the staff. However, it does not make corresponding improvements to the filtration effect of the waste acid. During the traditional filter bag replacement process, the equipment must be stopped, which invisibly reduces the working efficiency of the filtration equipment.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide a filtering mechanism and operating method for waste acid generated during flat glass thinning and etching, so as to solve the technical problems in the prior art that the filtering effect of waste acid generated during glass processing is poor, and when some parts in the filtering mechanism are replaced, the entire equipment needs to be stopped, which invisibly reduces the filtering efficiency of the filtering mechanism.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] A filtering mechanism for waste acid from etching of flat glass thinning, comprising a filter housing; the filter housing comprises an upper cylinder, a rotating portion and a lower cylinder;

[0008] A feed port is provided at the top of the upper cylinder, and the rotating part includes a supporting cylinder, a plurality of tubes and a driving part. The supporting cylinder is rotatably connected to the lower end of the upper cylinder, and is communicated with the plurality of tubes on the supporting cylinder by providing a liquid outlet inside the upper cylinder. The lower end of the supporting cylinder is provided with the lower cylinder, and the driving part for driving the supporting cylinder to rotate is arranged on the lower cylinder; a filter is arranged inside the upper cylinder, a material guide cylinder is arranged on the inner wall of the upper cylinder, a reflux part is provided in the material guide cylinder, and a stirring part is provided inside the lower cylinder.

[0009] In a specific embodiment, the supporting tube includes a first disk body, a plurality of partitions and a second disk body; a plurality of the partitions are arranged between the first disk body and the second disk body, and the plurality of the partitions form a plurality of placement cavities and a sealing cavity between the first disk body and the second disk body; the tube body is arranged in any one of the placement cavities, and the upper end of the first disk body is provided with openings corresponding to the plurality of the tube bodies one by one, and a sealing end corresponding to the sealing cavity.

[0010] In a specific embodiment, an annular groove is formed at the lower end of the upper cylinder, and an annular slider is fixed to the upper end of the first disk, and the slider is slidably connected to the groove.

[0011] In a specific embodiment, a quartz sand layer is provided on the inner wall of the tube body.

[0012] In a specific embodiment, a tooth groove is formed on the outer periphery of the second disk body, and the tooth groove is engaged with the output end of the driving part.

[0013] In a specific embodiment, the driving part includes a first motor and a first gear. The first motor is installed on the outer wall of the lower cylinder. The first gear is fixed to the output end of the first motor, and the first gear is engaged with the tooth groove.

[0014] In a specific embodiment, the filter element includes a first filter screen, a second filter screen and a third filter screen; the first filter screen, the second filter screen and the third filter screen are arranged from top to bottom in the upper cylinder body, and the first filter screen, the second filter screen and the third filter screen are all provided with holes for the material guide barrel to pass through.

[0015] In a specific embodiment, the reflux part includes a second motor and a spiral guide shaft; the second motor is arranged at the upper end of the upper cylinder, the output end of the second motor is connected to the spiral guide shaft, the spiral guide shaft is vertically arranged in the guide cylinder, and a through hole is opened on the guide cylinder, and the through hole is located above the first filter screen.

[0016] In a specific embodiment, the stirring part includes a third motor, a shaft and stirring blades. The third motor is arranged at the lower end of the lower cylinder. The output end of the third motor is connected to the shaft. One end of the shaft passes through the lower cylinder and is connected to a plurality of stirring blades. The outer peripheries of the upper cylinder and the lower cylinder are fixed to the ground through a bracket, and the outer wall of the lower cylinder is respectively provided with a first material port and a second material port from top to bottom.

[0017] In a specific embodiment,

[0018] S1. The staff introduces the waste acid to be filtered into the upper cylinder and filters the waste acid layer by layer through the filter. During the filtration process, the reflux part drives the waste acid from the guide cylinder to repeatedly flush the filter element;

[0019] S2. After a period of filtration, the driving unit is activated, and the driving unit drives the supporting cylinder to perform circular motion. When any one of the tubes is connected to the liquid outlet, the waste acid flows from the upper cylinder into the tube, and after secondary filtration, enters the lower cylinder;

[0020] S3. The waste acid after being filtered twice enters the lower cylinder at this time, and the stirring part drives the waste acid to react with the neutralizing agent to achieve a better neutralization effect.

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

[0022] 1. Compared with the prior art, the present invention can effectively perform preliminary filtration of waste acid by arranging a filter element inside the upper cylinder, and through the cooperation of the guide cylinder and the reflux part, the waste acid is driven to continuously flush the filter element, thereby achieving the effect of multiple filtration of the waste acid. After filtering for a period of time, the driving part is started, and the driving part drives the supporting cylinder to rotate. When the liquid outlet is connected to any one of the pipe bodies, the waste liquid flows into the pipe body and is processed, and then flows into the lower cylinder body. After being stirred by the stirring part, the waste liquid is fully mixed with the neutralizing liquid to achieve the filtration efficiency of the waste acid of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the overall structure of the present invention;

[0024] FIG2 is a schematic diagram of a partial structure of the present invention;

[0025] FIG3 is an enlarged schematic diagram of point A in FIG2 of the present invention;

[0026] FIG4 is a schematic diagram of the internal structure of the present invention;

[0027] Figure 5 is a schematic structural diagram of the rotating portion and the lower cylinder of the present invention;

[0028] FIG6 is a schematic diagram of the front structure of the present invention;

[0029] FIG7 is a bottom view of the lower cylinder of the present invention.

[0030] In the figure: 1. filter housing; 2. upper cylinder; 21. liquid outlet; 3. rotating part; 31. supporting cylinder; 311. first disk; 3111. opening; 3112. sealing end; 312. partition; 32. tube; 33. second disk; 331. tooth groove; 34. driving part; 341. first motor; 342. first gear; 4. lower cylinder; 5. filter element; 51. first filter screen; 52. second filter screen; 53. third filter screen; 6. material guide cylinder; 7. reflux part; 71. second motor; 72. spiral material guide shaft; 8. stirring part; 81. third motor; 82. shaft; 83. stirring blade. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] Please refer to FIG1 , which shows a filtering mechanism for waste acid from flat glass thinning and etching provided by the present invention, including a filter housing 1 ; the filter housing 1 includes an upper cylinder 2 , a rotating portion 3 and a lower cylinder 4 .

[0033] A feed port is provided at the top of the upper cylinder 2, and the rotating part 3 includes a supporting cylinder 31, a plurality of tubes 32 and a driving part 34. The supporting cylinder 31 is rotatably connected to the lower end of the upper cylinder 2, and is connected to the plurality of tubes 32 on the supporting cylinder 31 by providing a liquid outlet 21 inside the upper cylinder 2. A lower cylinder 4 is provided at the lower end of the supporting cylinder 31, and a driving part 34 for driving the supporting cylinder 31 to rotate is arranged on the lower cylinder 4; a filter element 5 is arranged inside the upper cylinder 2, a material guide cylinder 6 is arranged on the inner wall of the upper cylinder 2, a reflux part 7 is provided in the material guide cylinder 6, and a stirring part 8 is provided inside the lower cylinder 4.

[0034] The waste acid to be treated is introduced into the upper cylinder 2, and after being filtered layer by layer by the filter element 5, it is accumulated under the upper cylinder 2, and the waste acid is driven by the reflux part 7 to flow back from the guide cylinder 6 to the top of the filter element 5 and repeatedly filtered. After filtering for a period of time, the reflux part 7 stops running, and the driving part 34 is started. The driving part 34 drives the supporting cylinder 31 to perform a circular motion, and drives the tube body 32 to connect with the liquid outlet 21, and the waste acid enters the tube body 32 for treatment. It should be noted that there are multiple tube bodies 32. When one of them serves to connect the upper cylinder 2 and the lower cylinder 4, the staff can disassemble or replace the other tube bodies, so as to ensure that the equipment can continue to operate and avoid the situation where the entire filtering equipment cannot be used normally when the tube body 32 is replaced. After the waste liquid enters the lower cylinder 4, the stirring part 8 is started, and the waste acid is driven by the stirring part 8 to neutralize the neutralization reaction with the neutralizing liquid, thereby avoiding the presence of a large amount of harmful substances in the discharged liquid.

[0035] In order to improve the working efficiency of the carrying cylinder 31, please refer to Figures 1, 2, 3 and 5. In a preferred embodiment, the carrying cylinder 31 includes a first disk body 311, a plurality of partitions 312 and a second disk body 33; a plurality of partitions 312 are arranged between the first disk body 311 and the second disk body 33, and the plurality of partitions 312 form a plurality of placement cavities and a sealing cavity between the first disk body 311 and the second disk body 33; a tube body 32 is arranged in any placement cavity, and the upper end of the first disk body 311 is provided with openings 3111 corresponding to the plurality of tube bodies 32 one by one, and a sealing end 3112 corresponding to the sealing cavity, an annular groove body is provided at the lower end of the upper cylinder 2, an annular slider is fixed to the upper end of the first disk body 311, and the slider is slidably connected to the groove body, the inner wall of the tube body 32 is provided with a quartz sand layer, and the outer periphery of the second disk body 33 is provided with a tooth groove 331, which engages with the output end of the driving part 34.

[0036] The lower end of the upper cylinder 2 is provided with an annular groove, and the upper end of the first disc 311 is provided with a slider that cooperates with the groove, so that the first disc 311 is conveniently connected to the lower end of the lower cylinder 4, and the lower end of the first disc 311 is connected to the second disc 33 through a plurality of partitions 312, and a plurality of placement cavities are formed between the first disc 311 and the second disc 33 for placing the tube body 32, wherein the number of the tube body 32 is 5, wherein the internal space of the sealed cavity is a sealed structure, and no opening 3111 is provided on the top. When the upper end of the sealed cavity is connected to the liquid outlet When the positions of the ports 21 coincide, the liquid inside the upper cylinder 2 cannot enter the tube body 32. When the driving end cooperates with the tooth groove 331 on the second disk 33 to drive the entire supporting cylinder 31 to rotate, the liquid outlet 21 is connected with the upper end of any one of the tube bodies 32. The liquid inside the upper cylinder 2 enters the tube body 32 through the opening 3111, and after being filtered through the quartz sand layer, flows from the tube body 32 into the lower cylinder 4. There are multiple tube bodies 32. When one of the tube bodies 32 needs to be replaced, it does not affect the normal operation of the entire filtering device.

[0037] In order to improve the driving efficiency of the driving unit 34, please refer to Figure 5. In a preferred embodiment, the driving unit 34 includes a first motor 341 and a first gear 342. The first motor 341 is installed on the outer wall of the lower cylinder 4. The output end of the first motor 341 is fixed with the first gear 342, and the first gear 342 is engaged with the tooth groove 331.

[0038] The first gear 342 is driven by the first motor 341 to rotate, and the first gear 342 is engaged with the tooth groove 331 on the outer wall of the second disk body 33, and the second disk body 33 is driven to rotate by the first gear 342. Since the upper end of the second disk body 33 is connected to the first disk body 311 through the partition 312, when the second disk body 33 rotates, the first disk body 311 is driven to rotate synchronously, so that the position of the first disk body 311 at the lower end of the upper cylinder 2 can be changed. When the liquid outlet 21 is connected to any one of the openings 3111, the waste liquid enters the tube body 32 and enters the lower cylinder 4 after being filtered through the quartz sand layer. When the liquid outlet 21 is connected to the sealing end 3112, the waste liquid cannot enter the lower cylinder 4 through the tube body 32.

[0039] In order to improve the filtering effect of the filter element 5 on waste acid, please refer to Figures 2 and 4. In a preferred embodiment, the filter element 5 includes a first filter screen 51, a second filter screen 52 and a third filter screen 53; the first filter screen 51, the second filter screen 52 and the third filter screen 53 are arranged from top to bottom in the upper cylinder 2, and the first filter screen 51, the second filter screen 52 and the third filter screen 53 are all provided with holes for the guide barrel 6 to pass through. The reflux part 7 includes a second motor 71 and a spiral guide shaft 72; the second motor 71 is arranged at the upper end of the upper cylinder 2, and the output end of the second motor 71 is connected to the spiral guide shaft 72, and the spiral guide shaft 72 is vertically arranged in the guide barrel 6. A through hole is provided on the guide barrel 6, and the through hole is located above the first filter screen 51.

[0040] After the waste acid enters the upper cylinder 2, it is screened and filtered through the first filter screen 51, the second filter screen 52 and the third filter screen 53. Then the second motor 71 is started, and the second motor 71 drives the spiral guide shaft 72 to operate, driving the liquid to move upward from the guide cylinder 6 and flow through the first filter screen 51, the second filter screen 52 and the third filter screen 53 through the through hole again to achieve the effect of multiple filtration.

[0041] In order to improve the working efficiency of the stirring part 8 in the lower cylinder 4, please refer to Figures 2 and 7. In a preferred embodiment, the stirring part 8 includes a third motor 81, a shaft 82 and a stirring blade 83. The third motor 81 is arranged at the lower end of the lower cylinder 4, and the output end of the third motor 81 is connected to the shaft 82. One end of the shaft 82 passes through the lower cylinder 4 and is connected to a number of stirring blades 83; the outer peripheries of the upper cylinder 2 and the lower cylinder 4 are fixed to the ground through a bracket, and the outer wall of the lower cylinder 4 is respectively provided with a first material port and a second material port from top to bottom.

[0042] The third motor 81 is provided to facilitate the operation of the shaft 82, and the shaft 82 drives the stirring blade 83 to neutralize the waste acid and the neutralizing liquid in the lower cylinder 4, thereby ensuring that the subsequently discharged wastewater no longer contains harmful substances. The brackets are provided on the outside of the upper cylinder 2 and the lower cylinder 4 to enhance the stability of the upper cylinder 2 and the lower cylinder 4 and facilitate the rotation of the rotating part 3. By opening the first material port, the neutralizing liquid can be conveniently introduced into the lower cylinder 4, and by opening the second material port, the neutralized solution can be conveniently discharged outward.

[0043] In order to better understand the present invention, the working process of the filtering mechanism for waste acid from flat glass thinning and etching of the present invention is described in detail below with reference to FIG. 1 to FIG. 7 : When in use:

[0044] S1. The staff introduces the waste acid to be filtered into the upper cylinder 2, and filters the waste acid layer by layer through the first filter 51, the second filter 52 and the third filter 53. During the filtration process, the second motor 71 is started, and the second motor 71 drives the spiral guide shaft 72 to operate. The spiral guide shaft 72 is in the guide cylinder 6, driving the liquid to flow back to the upper end of the guide, and then flows back to the first filter 51, the second filter 52 and the third filter 53, so that the waste acid is repeatedly filtered;

[0045] S2. After a period of filtration, the first motor 341 is started, and the first motor 341 drives the first gear 342 to rotate. The first gear 342 cooperates with the tooth groove 331 on the outer periphery of the second disc 33, and drives the first disc 311 to rotate through the partition 312. The initial state of the entire carrying cylinder 31 is that the sealing end 3112 is aligned with the liquid outlet 21 at the lower end of the upper cylinder 2. During the rotation process, the liquid outlet 21 is aligned with any one of the openings 3111, and the waste acid enters the tube body 32 from the upper cylinder 2, and is filtered through the quartz sand layer inside the tube body 32, and finally flows into the lower cylinder 4. It should be noted that there are at least 5 tube bodies 32 in this application, that is, when one of the tube bodies 32 is connected to the liquid outlet 21, the staff can replace or repair the remaining 4 tube bodies 32. During the replacement or maintenance of the tube body 32, the entire filter equipment does not need to be shut down, which greatly enhances the filtration effect of the filter housing 1.

[0046] S3. The waste acid after two filtrations enters the lower cylinder 4 from the tube 32, and the shaft 82 is driven by the third motor 81 to rotate, and the shaft 82 drives the stirring blade 83 to rotate. The staff introduces the neutralizing agent into the lower cylinder 4 through the first material port, and after stirring for a period of time, the liquid is discharged outward from the second material port.

[0047] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A filtering mechanism for waste acid from etching of flat glass, characterized by: It includes a filter housing; the filter housing includes an upper cylinder, a rotating part and a lower cylinder; A feed port is provided at the top of the upper cylinder, and the rotating part includes a supporting cylinder, a plurality of tubes and a driving part. The supporting cylinder is rotatably connected to the lower end of the upper cylinder, and is connected to the plurality of tubes on the supporting cylinder by providing a liquid outlet inside the upper cylinder. The lower end of the supporting cylinder is provided with the lower cylinder, and the driving part for driving the supporting cylinder to rotate is arranged on the lower cylinder; a filter is arranged inside the upper cylinder, a material guide cylinder is arranged on the inner wall of the upper cylinder, a reflux part is arranged in the material guide cylinder, and a stirring part is arranged inside the lower cylinder.

2. A filtering mechanism for waste acid from etching of flat glass thinning according to claim 1, characterized in that: The supporting tube includes a first disk body, a plurality of partitions and a second disk body; a plurality of the partitions are arranged between the first disk body and the second disk body, and the plurality of the partitions form a plurality of placement cavities and a sealing cavity between the first disk body and the second disk body; the tube body is arranged in any one of the placement cavities, and the upper end of the first disk body is provided with openings corresponding to the plurality of the tube bodies one by one, and a sealing end corresponding to the sealing cavity.

3. A filtering mechanism for waste acid from etching of flat glass thinning according to claim 2, characterized in that: An annular groove is formed at the lower end of the upper cylinder, and an annular slider is fixed at the upper end of the first disk, and the slider is slidably connected in the groove.

4. The filtering mechanism for waste acid from etching of flat glass thinning according to claim 1, characterized in that: The inner wall of the tube body is provided with a quartz sand layer.

5. The filtering mechanism for waste acid from etching of flat glass thinning according to claim 2, characterized in that: A tooth groove is formed on the outer circumference of the second disk body, and the tooth groove is engaged with the output end of the driving part.

6. A filtering mechanism for waste acid from etching of flat glass thinning according to claim 5, characterized in that: The driving part includes a first motor and a first gear. The first motor is installed on the outer wall of the lower cylinder. The first gear is fixed to the output end of the first motor. The first gear is meshed with the tooth groove.

7. The filtering mechanism for waste acid from etching of flat glass thinning according to claim 1, characterized in that: The filter element includes a first filter screen, a second filter screen and a third filter screen; the first filter screen, the second filter screen and the third filter screen are arranged from top to bottom in the upper cylinder body, and the first filter screen, the second filter screen and the third filter screen are all provided with holes for the material guide cylinder to pass through.

8. A filtering mechanism for waste acid from etching of flat glass thinning according to claim 7, characterized in that: The reflux part includes a second motor and a spiral material guide shaft; the second motor is arranged at the upper end of the upper cylinder, the output end of the second motor is connected to the spiral material guide shaft, the spiral material guide shaft is vertically arranged in the material guide cylinder, a through hole is opened on the material guide cylinder, and the through hole is located above the first filter screen.

9. The filtering mechanism for waste acid from etching of flat glass thinning according to claim 1, characterized in that: The stirring part includes a third motor, a shaft and stirring blades. The third motor is arranged at the lower end of the lower cylinder. The output end of the third motor is connected to the shaft. One end of the shaft passes through the lower cylinder and is connected to a plurality of stirring blades. The outer peripheries of the upper cylinder and the lower cylinder are fixed to the ground through a bracket. The outer wall of the lower cylinder is respectively provided with a first material opening and a second material opening from top to bottom.

10. An operating method of a flat glass thinning and etching waste acid filtering mechanism, applicable to the flat glass thinning and etching waste acid filtering mechanism as claimed in any one of claims 1 to 9, comprising the following steps: S1. The staff introduces the waste acid to be filtered into the upper cylinder, and filters the waste acid layer by layer through the filter screen. During the filtering process, the reflux part drives the waste acid to repeatedly flush the filter element from the guide cylinder; S2. After a period of filtration, the driving unit is started, and the driving unit drives the supporting cylinder to perform circular motion. When any one of the tube bodies is connected to the liquid outlet, the waste acid flows from the upper cylinder body into the tube body, and after secondary filtration, enters the lower cylinder body; S3. The waste acid after two filtrations enters the lower cylinder at this time, and the stirring part drives the waste acid to react with the neutralizing agent to achieve a better neutralization effect.

Images