Wastewater defluorination treatment device for semiconductors

Abstract

The utility model discloses a waste water defluorination treatment device for semiconductors, which comprises a tank body and two feeding pipes arranged on the tank body, a support is fixedly arranged on the top of the tank body, a vertical hydraulic cylinder is fixedly arranged on the support, a driving mechanism is fixedly arranged at the bottom end of the vertical hydraulic cylinder, and the driving mechanism is fixedly arranged on the top of the tank body. The bottom end of the driving mechanism extends into the tank body, and a conical filter net bag is fixedly connected into the tank body. The conical blocking cover is supported by the lifting mechanism, so that the conical blocking cover and the conical filter net bag are matched with the driving mechanism to form a complete reaction space, a waste defluorination reaction space is provided, then the conical blocking cover is driven by the lifting mechanism to flexibly lift to control filtered water to be discharged, and then the driving mechanism is used for independently discharging sediments; efficient and stable solid-liquid separation operation is realized, so that the device has the advantages that the solid-liquid separation efficiency is improved, the wastewater treatment efficiency is improved, and meanwhile, the solid discharge efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of semiconductor wastewater treatment, and more specifically, to a semiconductor wastewater defluorination treatment device. Background Art

[0002] Semiconductor wastewater is acidic fluoride-containing wastewater. The main treatment indicators are pH, fluoride, COD, etc. The pH of the wastewater is about 3, and the fluoride is as high as 800 mg / L or even higher. This type of wastewater must use a reliable process to ensure that the fluoride content in the effluent meets the discharge standard, otherwise it will exceed the discharge standard and cause environmental pollution. Fluoride-containing wastewater is treated by existing wastewater treatment equipment. Usually, defluorination agents are added to the fluoride-containing wastewater for reaction and precipitation inside the defluorination equipment.

[0003] However, the existing wastewater defluorination devices generally use filtration to separate the precipitated wastewater. Since the filtration structure is generally arranged horizontally, the precipitated substances during the filtration process will cause the water permeability of the filtration structure to decrease, thereby reducing the treatment efficiency. In addition, it is very inconvenient to discharge the precipitated solid matter, which reduces the overall treatment efficiency. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a semiconductor wastewater defluorination treatment device.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A semiconductor wastewater defluorination treatment device comprises a tank body and two feed pipes installed on the tank body, a bracket is fixedly installed on the top of the tank body, a vertical hydraulic cylinder is fixedly installed on the bracket, a driving mechanism is fixedly installed on the bottom end of the vertical hydraulic cylinder, the bottom end of the driving mechanism extends to the inside of the tank body, a conical filter net bag is fixedly connected to the inside of the tank body, the bottom end of the driving mechanism extends to the bottom end of the conical filter net bag and contacts and cooperates with it, a lifting member is installed inside the tank body, a ring-arranged support frame is installed on the lifting member, a conical baffle cover that fits the outer surface of the conical filter net bag is fixedly connected between the support frames, a material guiding mechanism is installed on one of the support frames, the material guiding mechanism is movably connected and cooperates with the bottom end of the conical baffle cover, and two discharge holes are provided at the bottom of the tank body.

[0007] As a further description of the above technical solution: the driving mechanism includes a driving motor, a positioning ring, a sliding ring, a transmission rod and a counter-chuck, the outer side of the driving motor is slidingly connected to the inner side of the bracket, the output end of the driving motor is fixedly connected to the transmission rod through a coupling, the bottom end of the transmission rod extends to the bottom end of the conical filter net bag and is rotatably connected to the counter-chuck, the top of the counter-chuck is tightly fitted with the conical filter net bag, the inner part of the sliding ring is slidably connected to the outer side of the transmission rod, the outer side of the sliding ring is rotatably connected to the inner side of the positioning ring, and the outer side of the positioning ring is fixedly connected to the tank body.

[0008] As a further description of the above technical solution: an integrated auger section is arranged on the transmission rod, and the bottom end of the auger section is rotatably connected to the top of the counter chuck.

[0009] As a further description of the above technical solution: the bottom port of the conical filter net bag is fixedly connected with a fixing ring, and the bottom end of the fixing ring is fixedly connected with a rubber gasket.

[0010] As a further description of the above technical solution: the lifting member includes two lifting hydraulic cylinders and an inner ring, the top end of the lifting hydraulic cylinder penetrates through the tank body and is fixedly connected thereto, the movable end of the lifting hydraulic cylinder is fixedly connected to the inner ring, and the outer side of the inner ring is slidably connected to the interior of the tank body.

[0011] As a further description of the above technical solution: the material guiding mechanism includes an inclined hydraulic cylinder and a material guiding barrel, the movable end of the inclined hydraulic cylinder is hinged to the outer side of the material guiding barrel, one end of the inclined hydraulic cylinder is hinged to a support frame on a horizontal side, and the top of the material guiding barrel is sleeved to the outer side of the conical baffle cover and hingedly cooperated with it.

[0012] As a further description of the above technical solution: a material distribution box is fixedly connected to the bottom of the tank body, a partition is fixedly connected inside the material distribution box, and the material distribution box spaces on both sides of the partition are vertically corresponding to the two discharge holes respectively.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] This solution supports the conical baffle cover through a lifting mechanism so that it cooperates with the conical filter bag and the driving mechanism to form a complete reaction space, providing a waste defluorination reaction space, and then uses the lifting mechanism to drive the conical baffle cover to flexibly lift and lower to control the discharge of filtered water, and then uses the driving mechanism to discharge the sediment independently, realizing efficient and stable solid-liquid separation operations, thereby realizing the advantages of improving the solid-liquid separation efficiency, increasing the wastewater treatment efficiency, and improving the solid discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 For Figure 1 Schematic enlarged view of the structure of part A in the figure;

[0017] Figure 3 Top view structure schematic diagram of the present utility model;

[0018] Figure 4 Partial three-dimensional structure schematic diagram of the present utility model.

[0019] Explanation of the reference numerals in the figure:

[0020] 1. Tank body; 2. Bracket; 3. Vertical hydraulic cylinder; 4. Driving mechanism; 41. Driving motor; 42. Positioning ring; 43. Sliding ring; 44. Transmission rod; 441. Screw conveyor section; 45. Anti-chuck; 5. Conical filter net pocket; 51. Fixed ring; 52. Rubber gasket; 6. Lifting member; 61. Jacking hydraulic cylinder; 62. Inner ring; 7. Support frame; 8. Conical baffle; 9. Feeding guide mechanism; 91. Inclined hydraulic cylinder; 92. Feeding guide tube; 10. Discharge hole; 11. Material distribution box; 111. Partition board; 12. Feed pipe. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model;

[0022] Please refer to Figures 1 to 4 , in the present utility model, a waste water defluorination treatment device for semiconductors includes a tank body 1 and two feed pipes 12 installed on the tank body 1. A bracket 2 is fixedly installed at the top of the tank body 1, a vertical hydraulic cylinder 3 is fixedly installed on the bracket 2, the bottom end of the vertical hydraulic cylinder 3 is fixedly installed with a driving mechanism 4, the bottom end of the driving mechanism 4 extends into the interior of the tank body 1, a conical filter net pocket 5 is fixedly connected inside the tank body 1, the bottom end of the driving mechanism 4 extends to the bottom end of the conical filter net pocket 5 and is in contact and cooperation with it, a lifting member 6 is installed inside the tank body 1, a ring-shaped arranged support frame 7 is installed on the lifting member 6, a conical baffle 8 that fits the outer surface of the conical filter net pocket 5 is fixedly connected between the support frames 7, a feeding guide mechanism 9 is installed on one of the support frames 7, the feeding guide mechanism 9 is movably connected and cooperated with the bottom end of the conical baffle 8, and two discharge holes 10 are opened at the bottom of the tank body 1.

[0023] In the present utility model, with the tank body 1 as the main body of the device, first start the lifting member 6 to lift the support frame 7 upward, driving the inner side of the conical baffle 8 to closely fit with the outer side of the conical filter net pocket 5, and start the vertical hydraulic cylinder 3 to drive the driving mechanism 4 upward, so that its bottom contacts and closes the bottom opening of the conical filter net pocket 5. Then inject sewage through one feed pipe 12 and put defluorination agent into the other feed pipe 12. Then start the driving mechanism 4 to stir and mix, so that the agent fully reacts. Then let the wastewater stand and precipitate the reactants, so that the reactants precipitate at the bottom inside the conical filter net pocket 5. At this time, start the lifting member 6 to descend so that the conical baffle 8 descends and separates from the conical filter net pocket 5, and synchronously start the guiding mechanism 9 to deflect to the left above the discharge hole 10 on the left side. At this time, the defluorinated wastewater inside passes downward through the conical filter net pocket 5. The reactant precipitate at the bottom inside the conical filter net pocket 5 is filtered and does not affect the discharge of the wastewater. When the wastewater is drained through the discharge hole 10 on the left side, at this time start the guiding mechanism 9 to deflect to the right above the discharge hole 10 on the right side, and then start the vertical hydraulic cylinder 3 to drive the driving mechanism 4 to descend, open the bottom opening of the conical filter net pocket 5, so that the precipitate is discharged downward, and start the driving mechanism 4 to rotate to increase the discharge efficiency of the precipitate. Thus, the device has the advantages of improving the solid-liquid separation efficiency, increasing the wastewater treatment efficiency, and at the same time improving the solid discharge efficiency, solving the problem that in the prior art, generally the filtered method is used to separate the precipitated wastewater, and since the filtering structure is generally horizontally arranged, this leads to the decrease of the water permeability efficiency of the filtering structure caused by the precipitated substances during the filtering process, reducing the treatment efficiency, and the discharge of the solid substances after precipitation is very inconvenient, resulting in the reduction of the overall treatment efficiency.

[0024] Please refer to Figure 1 , wherein: the driving mechanism 4 includes a driving motor 41, a positioning ring 42, a sliding ring 43, a transmission rod 44 and an anti-chuck 45. The outer side of the driving motor 41 is slidably connected to the inner side of the bracket 2. The output end of the driving motor 41 is fixedly connected to the transmission rod 44 through a coupling. The bottom end of the transmission rod 44 extends to the bottom end of the conical filter net pocket 5 and is rotatably connected to the anti-chuck 45. The top of the anti-chuck 45 is in close fit with the conical filter net pocket 5. The inside of the sliding ring 43 is slidably connected to the outside of the transmission rod 44. The outside of the sliding ring 43 is rotatably connected to the inside of the positioning ring 42. The outside of the positioning ring 42 is fixedly connected to the tank body 1.

[0025] In the present utility model, by starting the driving motor 41 to drive the transmission rod 44 and the sliding ring 43 to rotate inside the positioning ring 42, the wastewater is mixed to improve the agent mixing efficiency, and the opening and closing of the bottom opening of the conical filter net pocket 5 are flexibly controlled by using the anti-chuck 45 to achieve solid-liquid separation and discharge, which is flexible and efficient.

[0026] Please refer to Figure 2, wherein: an integrated auger section 441 is provided on the transmission rod 44 , and the bottom end of the auger section 441 is rotatably connected to the top of the counter chuck 45 .

[0027] In the utility model, when discharging sediment, the driving motor 41 can be started to drive the transmission rod 44 to rotate, thereby driving the auger section 441 to rotate, thereby improving the sediment discharge efficiency.

[0028] See also Figure 2 , wherein: a fixing ring 51 is fixedly connected to the bottom end of the conical filter net bag 5, and a rubber gasket 52 is fixedly connected to the bottom end of the fixing ring 51.

[0029] In the utility model, the fixing ring 51 cooperates with the rubber gasket 52 to make the counter chuck 45 and the rubber gasket 52 contact and squeeze to achieve a better sealing effect on the bottom opening of the conical filter net bag 5.

[0030] See also Figure 1 , wherein: the lifting member 6 includes two lifting hydraulic cylinders 61 and an inner ring 62, the top end of the lifting hydraulic cylinder 61 penetrates through the tank body 1 and is fixedly connected thereto, the movable end of the lifting hydraulic cylinder 61 is fixedly connected to the inner ring 62, and the outer side of the inner ring 62 is slidably connected to the inside of the tank body 1.

[0031] In the utility model, the inner ring 62 is driven to slide vertically along the inner wall of the tank body 1 by starting the lifting hydraulic cylinder 61, so as to drive the conical baffle 8 on the support frame 7 to move vertically, and adjust its fit and separation with the outer side of the conical filter net bag 5, so that a stable sedimentation space is formed inside the conical filter net bag 5 by fitting and sealing during reaction precipitation, and during separation, the liquid is discharged first and the solid-liquid separation is achieved, which is flexible and efficient.

[0032] See also Figure 2 , wherein: the material guiding mechanism 9 includes an inclined hydraulic cylinder 91 and a material guiding barrel 92, the movable end of the inclined hydraulic cylinder 91 is hinged to the outer side of the material guiding barrel 92, one end of the inclined hydraulic cylinder 91 is hinged to a support frame 7 on a horizontal side, and the top of the material guiding barrel 92 is sleeved to the outer side of the conical baffle 8 and hingedly matched therewith.

[0033] In the utility model, the inclined hydraulic cylinder 91 is started to drive the guide cylinder 92 to move left and right to adjust so that the water and sediment are discharged through different discharge holes 10 respectively, thereby realizing separate discharge.

[0034] See also Figure 1 , wherein: a material distribution box 11 is fixedly connected to the bottom of the tank body 1, a partition 111 is fixedly connected inside the material distribution box 11, and the spaces of the material distribution box 11 on both sides of the partition 111 correspond vertically to the two discharge holes 10 respectively.

[0035] In the present utility model, the partition plate 111 of the material distribution box 11 separates the sediment and sewage discharged respectively, which is convenient for discharging.

[0036] The above is only the preferred specific embodiment of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A wastewater defluorination treatment device for semiconductors, comprising a tank body (1) and two feed pipes (12) installed on the tank body (1), characterized in that: A bracket (2) is fixedly mounted on the top of the tank body (1), a vertical hydraulic cylinder (3) is fixedly mounted on the bracket (2), a driving mechanism (4) is fixedly mounted on the bottom end of the vertical hydraulic cylinder (3), the bottom end of the driving mechanism (4) extends to the inside of the tank body (1), a conical filter net bag (5) is fixedly connected to the inside of the tank body (1), the bottom end of the driving mechanism (4) extends to the bottom end of the conical filter net bag (5) and contacts and cooperates with it, a lifting member (6) is mounted inside the tank body (1), a ring-arranged support frame (7) is mounted on the lifting member (6), a conical baffle (8) that fits the outer surface of the conical filter net bag (5) is fixedly connected between the support frames (7), one of the support frames (7) is mounted with a material guide mechanism (9), the material guide mechanism (9) is movably connected and cooperates with the bottom end of the conical baffle (8), and two discharge holes (10) are provided at the bottom of the tank body (1).

2. The wastewater defluorination treatment device for semiconductors according to claim 1, characterized in that: The driving mechanism (4) comprises a driving motor (41), a positioning ring (42), a sliding ring (43), a transmission rod (44) and a counter chuck (45); the outer side of the driving motor (41) is slidably connected to the inner side of the bracket (2); the output end of the driving motor (41) is fixedly connected to the transmission rod (44) via a coupling; the bottom end of the transmission rod (44) extends to the bottom end of the conical filter net bag (5) and is rotatably connected to the counter chuck (45); the top of the counter chuck (45) is tightly fitted with the conical filter net bag (5); the inside of the sliding ring (43) is slidably connected to the outside of the transmission rod (44); the outside of the sliding ring (43) is rotatably connected to the inside of the positioning ring (42); and the outside of the positioning ring (42) is fixedly connected to the tank body (1).

3. The wastewater defluorination treatment device for semiconductors according to claim 2, wherein: An integrated auger section (441) is provided on the transmission rod (44), and the bottom end of the auger section (441) is rotatably connected to the top of the counter chuck (45).

4. A wastewater defluorination treatment device for semiconductors according to claim 2, characterized in that: A fixing ring (51) is fixedly connected to the bottom end of the conical filter net bag (5), and a rubber gasket (52) is fixedly connected to the bottom end of the fixing ring (51).

5. The wastewater defluorination treatment device for semiconductors according to claim 1, wherein: The lifting member (6) comprises two lifting hydraulic cylinders (61) and an inner ring (62); the top ends of the lifting hydraulic cylinders (61) penetrate through the tank body (1) and are fixedly connected thereto; the movable ends of the lifting hydraulic cylinders (61) are fixedly connected to the inner ring (62); and the outer side of the inner ring (62) is slidably connected to the inside of the tank body (1).

6. The wastewater defluorination treatment device for semiconductors according to claim 1, wherein: The material guiding mechanism (9) comprises an inclined hydraulic cylinder (91) and a material guiding barrel (92); the movable end of the inclined hydraulic cylinder (91) is hinged to the outer side of the material guiding barrel (92); one end of the inclined hydraulic cylinder (91) is hinged to a support frame (7) on a horizontal side; the top of the material guiding barrel (92) is sleeved to the outer side of the conical baffle (8) and is hingedly matched therewith.

7. A wastewater defluorination treatment device for semiconductors according to claim 1, characterized in that: A material distribution box (11) is fixedly connected to the bottom of the tank body (1), a partition (111) is fixedly connected inside the material distribution box (11), and the spaces of the material distribution box (11) on both sides of the partition (111) correspond vertically to the two discharge holes (10) respectively.

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