Advanced treatment and recycling device for toxic chemical wastewater

Abstract

The utility model relates to a toxic chemical wastewater advanced treatment recycling device in the technical field of chemical wastewater treatment, which comprises a treatment tank, the top end of one side of the treatment tank is communicated with a liquid inlet pipe for introducing wastewater into the treatment tank, and the top of the treatment tank is provided with an oxidant material box for containing an oxidant. According to the utility model, the plurality of filter screens for filtering water are arranged on the outer wall of the vertical pipe, so that oxidation products in wastewater flowing into the vertical pipe can be filtered out through the filter screens, and liquid passes through the filter screens to move to the top of the water baffle and is finally discharged through the liquid discharge pipe; oxidation products filtered by the filter screen can fall into the sludge containing cavity under the action of self gravity to realize solid-liquid separation, and the rotating column can drive the sludge containing cavity to rotate, so that the oxidation products in the sludge containing cavity can be poured into the bottom end of the interior of the treatment tank, and the oxidation products can be taken out on the premise that the machine is not stopped; and the wastewater treatment efficiency of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical wastewater treatment, in particular to a device for deep treatment and recycling of toxic chemical wastewater. Background Art

[0002] As a large water consumer, chemical plants have a low water reuse rate and a large amount of wastewater discharged, which not only wastes water resources but also causes environmental pollution. At present, water shortage has threatened the production of these large industrial water users. In order to reduce resource waste, reduce production and operation costs, and improve corporate economic benefits for sustainable development, enterprises need to deeply treat chemical wastewater and reuse it as circulating water to achieve sustainable development and resource recycling. Chemical wastewater contains a large number of impurities and toxic substances. For example, oily wastewater from the production of ethylene, polyethylene, rubber, polyester, methanol, ethylene glycol and other devices can meet the secondary emission standards after treatment. Due to the shortage of water resources, the water that meets the emission standards needs to be further deeply treated to meet the requirements of industrial water replenishment and reuse.

[0003] Commonly used chemical wastewater deep treatment methods include membrane technology wastewater separation method, electrocatalytic wastewater decomposition method, ozone wastewater decomposition method, and iron-carbon micro-electrolysis wastewater treatment technology. The electrocatalytic wastewater decomposition method can effectively treat toxic substances in water, and catalytic electrode reaction will occur at room temperature to form hydroxyl radicals, and the organic matter in the water will gradually be converted into biodegradable organic matter, and some organic matter will have combustion phenomenon, and the conversion into carbon dioxide and water is an available resource, and the electrocatalytic wastewater decomposition method is simple and convenient to operate, and the wastewater treatment efficiency is high, so it is the most widely used in actual production. Adopting the electrocatalytic wastewater treatment method, it is necessary to adopt the prior art such as the publication number CN115286076A, and it is necessary to put an oxidant therein, and the oxidant put in is used to oxidize and decompose the toxic substances in the wastewater to achieve the effect of wastewater treatment, and the oxidation products manufactured by the oxidation are also easy to cause equipment clogging, so the prior art often needs to shut down to clean up the filtered products, but the number of shutdowns is too frequent and will have a great impact on the wastewater treatment efficiency. Utility Model Content

[0004] In order to solve the problem of affecting wastewater treatment efficiency due to oxidation products produced by wastewater treatment in the prior art mentioned in the above background technology, the utility model provides the following technical solutions:

[0005] A device for deep treatment and recycling of toxic chemical wastewater, comprising a treatment tank, wherein the top of one side of the treatment tank is connected to a liquid inlet pipe for passing wastewater into the treatment tank, an oxidant material box containing oxidant is arranged on the top of the treatment tank, an oxidant adding component for quantitatively measuring oxidant and feeding it into the treatment tank is arranged at the bottom of the oxidant material box, and the oxidant adding component is located between the treatment tank and the oxidant material box;

[0006] A conical water guide plate for limiting the direction of water flow is fixed inside the treatment tank, an oxidation treatment component for electrocatalytic wastewater is provided at the bottom of the conical water guide plate, and a filtering component for filtering the wastewater after electrocatalytic treatment is provided at the bottom of the oxidation treatment component;

[0007] The filter assembly includes a conical cover installed below the oxidation treatment assembly, the conical cover is fixed to the inside of the treatment tank, a vertical pipe is fixed to the water outlet at the bottom end of the conical cover, a plurality of filter screens for filtering wastewater are fixed on the outer wall of the vertical pipe, a water baffle is fixed to the outer end of the vertical pipe, the bottom end of the vertical pipe penetrates the water baffle and extends to the bottom of the water baffle, a drainage pipe is fixedly connected to the bottom of one side of the treatment tank, the drainage pipe is located at the top of the water baffle, the electrolyzed wastewater flows into the vertical pipe through the conical cover, the liquid passes through the filter screen and flows to the top of the water baffle and then is discharged through the drainage pipe, and the oxidation product is trapped by the filter screen in the vertical pipe to achieve solid-liquid separation;

[0008] A rotating column is provided at the bottom end of the vertical tube, and a plurality of mud chambers connected with the interior of the vertical tube are opened on the rotating column. The oxidation products inside the vertical tube fall into the mud chamber under the action of their own weight. A rotatable rotating shaft is fixed in the middle of the rotating column, and the rotating shaft drives the rotating column to rotate to pour the oxidation products inside the mud chamber into the bottom end of the processing tank.

[0009] Furthermore, the two ends of the rotating shaft are movably connected to the front side and the rear side of the processing tank respectively through bearings, the front end of the rotating shaft passes through the processing tank and extends out of the front side of the processing tank, and the front end of the rotating shaft is fixed with a motor for driving the rotating shaft to rotate;

[0010] The outer wall of the rotating column is provided with an annular groove, and a sealing ring is fixed at the bottom end of the vertical pipe, and the sealing ring is in contact with the inner wall of the annular groove;

[0011] The bottom of the processing tank is movably connected with an openable mud discharge door, and after the mud discharge door is opened, the oxidation product is discharged from the bottom opening of the processing tank.

[0012] Furthermore, the oxidant addition component includes a circular protective box fixed at the bottom of the oxidant feed box, a rotatable hollow turntable is provided inside the circular protective box, a U-shaped material trough is fixed at the top of the hollow turntable, the opening at the top of the U-shaped material trough is connected with the opening at the bottom of the oxidant feed box, so as to allow the oxidant in the oxidant feed box to fall into the U-shaped material trough, and a discharge pipe is fixedly connected to the bottom of the circular protective box, and the bottom end of the discharge pipe is connected to the interior of the processing tank. The oxidant falling into the U-shaped material trough moves to the interior of the processing tank through the discharge pipe after following the rotation of the hollow turntable.

[0013] Furthermore, a driving mechanism for driving the hollow turntable to rotate is provided in the middle of the hollow turntable, and the driving mechanism passes through the hollow turntable and the circular protection box and extends to the front side of the processing tank;

[0014] The driving mechanism includes a rotating shaft, the rear end of which passes through a circular protective box and is fixed to a hollow turntable. The top of the interior of the processing tank is movably connected to a driven shaft through a bearing. A water wheel is fixed to the outer end of the driven shaft. The water wheel is located below the water outlet of the liquid inlet pipe. The driven shaft and the rotating shaft are driven by a gear transmission assembly and a belt transmission assembly.

[0015] Furthermore, the oxidation treatment component includes an oxidation trough arranged below the conical water guide plate, a hollow rod is fixed to the middle cavity of the oxidation trough through a bracket, a spring is fixed inside the hollow rod, a moving rod is fixed to the top of the spring, the top of the moving rod extends from the inside of the hollow rod and is fixed with a hemispherical water retaining cap, a plurality of equally spaced cross bars are fixed to the outer wall of the bottom end of the hemispherical water retaining cap, an electrode is fixed to the bottom end of the cross bar, a rubber rod is fixed to the bottom end of the moving rod, a rubber plug is fixed to the outside of the top end of the rubber rod, a plurality of equally spaced through holes are opened at the bottom end of the oxidation trough, and the rubber plug is adapted to the through holes.

[0016] Furthermore, a scraper ring is provided at the outer end of each electrode, the scraper ring is in contact with the outer wall of the electrode, and one end of the scraper ring away from the electrode is fixed to the inner wall of the processing tank.

[0017] Furthermore, a plurality of support legs distributed at equal intervals are fixed to the bottom end of the outer wall of the treatment tank, and the bottom ends of the support legs are in contact with the ground;

[0018] A ladder for people to climb is fixed on the rear side of the processing tank, which is used to add oxidant into the oxidant tank.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. By installing multiple filters for filtering water on the outer wall of the vertical pipe, the wastewater flowing into the vertical pipe can be filtered out of the oxidation products through the filter screen, the liquid passes through the filter screen and moves to the top of the water retaining plate and is finally discharged through the drain pipe, and the oxidation products filtered by the filter screen will fall into the mud chamber under the action of its own gravity to achieve solid-liquid separation, and the rotating column can drive the mud chamber to rotate, so that the oxidation products in the mud chamber can be poured into the bottom of the treatment tank, thereby realizing the removal of the oxidation products without stopping the machine, thereby ensuring the wastewater treatment efficiency of the utility model.

[0021] 2. The water flow entering the treatment tank through the liquid inlet pipe drives the water wheel to rotate, so that the driving mechanism can drive the hollow turntable to rotate inside the circular protective box. After the U-shaped material trough inside the hollow turntable is connected with the bottom end of the oxidant material box, the oxidant in the oxidant material box will automatically fall into the U-shaped material trough, so as to achieve quantitative measurement of the oxidant. The U-shaped material trough is then driven by the circular protective box to rotate and the measured oxidant is put into the treatment tank, so as to realize automatic addition of the oxidant and save the tedious operation of manual addition.

[0022] 3. By utilizing the wastewater flow flowing into the treatment tank to press downward on the hemispherical water retaining cap, rubber rod and rubber plug, the rubber plug can seal the through hole at the bottom of the oxidation tank, so as to temporarily retain the wastewater inside the oxidation tank to extend the contact time between the electrode and the wastewater, thereby ensuring the electrocatalytic treatment effect of the wastewater. Moreover, the hemispherical water retaining cap can also move upward in the interval of the pulse water flow to pull the rubber plug out of the through hole, so that the treated wastewater can flow smoothly downward through the through hole for filtration. The structural design is ingenious, eliminating the trouble of manual control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the utility model;

[0024] Figure 2 It is a rear view of the utility model;

[0025] Figure 3 It is a cross-sectional view of the processing tank of the utility model;

[0026] Figure 4 For this utility model Figure 3 A magnified view of middle;

[0027] Figure 5 For this utility model Figure 3 Enlarged view of middle B;

[0028] Figure 6 For this utility model Figure 3 Enlarged view of middle C;

[0029] Figure 7It is a schematic diagram of the structure of the oxidation treatment component and the filtering component of the utility model;

[0030] Figure 8 For this utility model Figure 7 Enlarged view of D in the middle.

[0031] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0032] 1. Treatment tank; 2. Liquid inlet pipe; 3. Liquid discharge pipe; 4. Oxidant tank;

[0033] 5. Oxidant adding assembly; 51. Circular protection box; 52. Hollow turntable; 53. U-shaped material taking trough; 54. Material discharge pipe; 55. Driving mechanism; 551. Rotating shaft; 552. Gear transmission assembly; 553. Belt transmission assembly; 554. Driven shaft; 555. Water wheel;

[0034] 6. Oxidation treatment assembly; 61. Oxidation tank; 62. Hollow rod; 63. Spring; 64. Moving rod; 65. Hemispherical water retaining cap; 66. Crossbar; 67. Electrode; 68. Rubber rod; 69. Rubber plug; 610. Through hole; 611. Mud scraping ring;

[0035] 7. Conical water guide plate;

[0036] 8. Filter assembly; 81. Conical cover; 82. Vertical pipe; 83. Filter screen; 84. Water retaining plate; 85. Rotating column; 86. Mud chamber; 87. Sealing ring; 88. Rotating shaft; 89. Motor; 810. Mud discharge door;

[0037] 9. Support leg;

[0038] 10. Climb the ladder. DETAILED DESCRIPTION

[0039] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0040] See also Figure 1-8 The utility model provides a device for deep treatment and recycling of toxic chemical wastewater, comprising a treatment tank 1, a plurality of support legs 9 distributed at equal intervals are fixed at the bottom end of the outer wall of the treatment tank 1, the bottom end of the support legs 9 is in contact with the ground, a liquid inlet pipe 2 for passing wastewater into the treatment tank 1 is connected to the top of one side of the treatment tank 1, an oxidant tank 4 containing oxidant is provided on the top of the treatment tank 1, a ladder 10 for people to climb is fixed on the rear side of the treatment tank 1, and is used to add oxidant into the oxidant tank 4, an oxidant adding component 5 for quantitatively measuring oxidant and putting it into the treatment tank 1 is provided at the bottom of the oxidant tank 4, and the oxidant adding component 5 is located between the treatment tank 1 and the oxidant tank 4;

[0041] Specifically, Figure 4 and 7 As shown, the oxidant adding assembly 5 includes a circular protective box 51 fixed at the bottom of the oxidant material box 4, a rotatable hollow turntable 52 is provided inside the circular protective box 51, a U-shaped material trough 53 is fixed at the top of the hollow turntable 52, the opening at the top of the U-shaped material trough 53 is connected with the opening at the bottom of the oxidant material box 4, and is used for the oxidant in the oxidant material box 4 to fall into the U-shaped material trough 53, and a discharge pipe 54 is fixedly connected at the bottom of the circular protective box 51, and the bottom end of the discharge pipe 54 is connected with the inside of the processing tank 1, and the oxidant falling into the U-shaped material trough 53 moves to the inside of the processing tank 1 through the discharge pipe 54 after following the rotation of the hollow turntable 52;

[0042] In order to be able to drive the hollow turntable 52 to rotate, a driving mechanism 55 for driving the hollow turntable 52 to rotate is provided in the middle of the hollow turntable 52, and the driving mechanism 55 penetrates the hollow turntable 52 and the circular protection box 51 and extends to the front side of the processing tank 1. Specifically, the driving mechanism 55 includes a rotating shaft 551, and the rear end of the rotating shaft 551 penetrates the circular protection box 51 and is fixed to the hollow turntable 52. The top of the interior of the processing tank 1 is movably connected with a driven shaft 554 through a bearing, and a water wheel 555 is fixed to the outer end of the driven shaft 554. The water wheel 555 is located below the water outlet of the liquid inlet pipe 2, and the driven shaft 554 and the rotating shaft 551 are driven by a gear transmission assembly 552 and a belt transmission assembly 553.

[0043] After the wastewater to be treated enters the treatment tank 1 through the liquid inlet pipe 2, it will be discharged through the water outlet of the liquid inlet pipe 2. The wastewater flow flowing into the liquid inlet pipe 2 is a pulsed water flow, that is, it will flow into the liquid inlet pipe 2 section by section. The wastewater flow flowing out of the liquid inlet pipe 2 impacts the water wheel 555 and starts to rotate. The rotating water wheel 555 drives the rotating shaft 551 to rotate through the driven shaft 554, the belt transmission component 553 and the gear transmission component 552. Finally, the rotating rotating shaft 551 drives the hollow turntable 52 to drive the U-shaped material trough 53 to rotate. When the U-shaped material trough 53 rotates 180 degrees and is connected to the discharge pipe 54, the oxidant in the U-shaped material trough 53 will move to the inside of the treatment tank 1 through the discharge pipe 54 to contact the wastewater. The utility model can automatically complete the addition of the oxidant with the help of the flow potential energy of the water flow, thereby reducing the operational difficulty of toxic chemical wastewater treatment.

[0044] A conical water guide plate 7 for limiting the direction of water flow is fixed inside the treatment tank 1. The bottom of the conical water guide plate 7 is provided with an oxidation treatment component 6 for electrocatalytic wastewater. Specifically, Figure 5 and 8As shown, the oxidation treatment component 6 includes an oxidation trough 61 arranged below the conical water guide plate 7, a hollow rod 62 is fixed to the middle cavity of the oxidation trough 61 through a bracket, a spring 63 is fixed inside the hollow rod 62, a moving rod 64 is fixed to the top of the spring 63, the top of the moving rod 64 extends from the inside of the hollow rod 62 and is fixed with a hemispherical water retaining cap 65, a plurality of equally spaced cross bars 66 are fixed to the outer wall of the bottom end of the hemispherical water retaining cap 65, an electrode 67 is fixed to the bottom end of the cross bar 66, a rubber rod 68 is fixed to the bottom end of the moving rod 64, a rubber plug 69 is fixed to the outside of the top end of the rubber rod 68, a plurality of equally spaced through holes 610 are opened at the bottom end of the oxidation trough 61, and the rubber plug 69 is adapted to the through holes 610;

[0045] The wastewater continues to flow downward and passes through the conical water guide plate 7. Under the restriction of the opening at the bottom of the conical water guide plate 7, it flows to the hemispherical water retaining cap 65. Under the impact of the water flow, the hemispherical water retaining cap 65 is pressed to drive the moving rod 64, the cross bar 66, the electrode 67, the rubber rod 68 and the rubber plug 69 to move downward until the rubber plug 69 is inserted into the through hole 610. At this time, the hemispherical water retaining cap 65 covers the outside of the opening in the middle of the oxidation tank 61 to achieve the blocking of the opening. Then the wastewater gathers inside the oxidation tank 61 and fully contacts with the electrode 67 and the oxidant to achieve the electrocatalytic treatment of the wastewater.

[0046] It is known that the wastewater flow flowing into the liquid inlet pipe 2 is a pulsed water flow, that is, it flows into the treatment tank 1 intermittently in sections, so when the wastewater in the liquid inlet pipe 2 hits the top of the hemispherical water retaining cap 65, a downward pressure will be applied to the hemispherical water retaining cap 65 from above. When in the water flow gap, the top of the hemispherical water retaining cap 65 loses pressure. At this time, the spring 63 will push the hemispherical water retaining cap 65 to drive the rubber rod 68 and the electrode 67 to move upward, and pull the rubber plug 69 out of the through hole 610. The wastewater after electrocatalytic treatment will flow downward through the through hole 610;

[0047] Moreover, a scraper ring 611 is provided at the outer end of each electrode 67, and the scraper ring 611 is in contact with the outer wall of the electrode 67. The scraper ring 611 is fixed to the inner wall of the treatment tank 1 at one end away from the electrode 67, so that when the electrode 67 moves upward in the utility model, the scraper ring 611 will contact the outer wall of the electrode 67, thereby being able to scrape off the oxidation products adhering to the outer wall of the electrode 67, so that the oxidation products can flow downward with the water flow.

[0048] A filter assembly 8 for filtering wastewater after electrocatalytic treatment is provided at the bottom of the oxidation treatment assembly 6. Specifically, Figure 6 and 7As shown, the filtering assembly 8 includes a conical cover 81 installed below the oxidation treatment assembly 6, the conical cover 81 is fixed to the inside of the treatment tank 1, a vertical pipe 82 is fixed to the water outlet at the bottom end of the conical cover 81, a plurality of filter screens 83 for filtering wastewater are fixed on the outer wall of the vertical pipe 82, a water baffle 84 is fixed to the outer end of the vertical pipe 82, the bottom end of the vertical pipe 82 passes through the water baffle 84 and extends to the bottom of the water baffle 84, a drainage pipe 3 is fixedly connected to the bottom of one side of the treatment tank 1, and the drainage pipe 3 is located at the top of the water baffle 84, the wastewater after electrolysis flows into the vertical pipe 82 through the conical cover 81, the liquid passes through the filter screen 83 and flows to the top of the water baffle 84 and then is discharged through the drainage pipe 3, and the oxidation product is trapped by the filter screen 83 in the vertical pipe 82 to achieve solid-liquid separation;

[0049] Moreover, a rotating column 85 is provided at the bottom end of the vertical tube 82, and a circle of annular grooves are provided on the outer wall of the rotating column 85. A sealing ring 87 is fixed at the bottom end of the vertical tube 82. The sealing ring 87 contacts the inner wall of the annular groove, which helps to enhance the sealing of the contact surface when the bottom end of the vertical tube 82 contacts the side wall of the rotating column 85, and prevents liquid from flowing out through the bottom end of the vertical tube 82. A plurality of mud chambers 86 connected to the inside of the vertical tube 82 are provided on the rotating column 85. The oxidation products in the vertical tube 82 fall into the mud chambers 86 under the action of their own weight. A rotatable rotating shaft 88 is fixed in the middle of the rotating column 85. The two ends of the rotating shaft 88 are movably connected to the front and rear sides of the processing tank 1 through bearings respectively. The front end of the rotating shaft 88 passes through the processing tank 1 and extends out of the front side of the processing tank 1. The front end of the rotating shaft 88 is fixed with a motor 89 for driving the rotating shaft 88 to rotate.

[0050] The wastewater after electrocatalytic treatment will flow into the vertical pipe 82 along the inclined surface of the conical cover 81, and then the liquid will pass through the filter screen 83 and flow to the top of the water baffle 84, and then be discharged through the drain pipe 3. The oxidation products intercepted by the filter screen 83 will fall into the bottom end of the vertical pipe 82 and move to the mud chamber 86 to achieve solid-liquid separation. At the same time, the driving motor 89 drives the rotating shaft 88 and the rotating column 85 to rotate. The rotating rotating column 85 can also pour the oxidation products in the mud chamber 86 into the bottom end of the treatment tank 1. The staff can open the mud discharge door 810 without stopping the machine to take out the oxidation products, which helps to ensure that the processing efficiency of the utility model is not affected.

[0051] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A device for deep treatment and recycling of toxic chemical wastewater, comprising a treatment tank (1), wherein the top end of one side of the treatment tank (1) is connected to a liquid inlet pipe (2) for passing wastewater into the treatment tank (1), characterized in that: An oxidant tank (4) containing an oxidant is disposed on the top of the treatment tank (1), an oxidant adding component (5) for quantitatively measuring the oxidant and feeding it into the treatment tank (1) is disposed on the bottom of the oxidant tank (4), and the oxidant adding component (5) is located between the treatment tank (1) and the oxidant tank (4); A conical water guide plate (7) for limiting the direction of water flow is fixed inside the treatment tank (1); an oxidation treatment component (6) for electrocatalytic wastewater is provided at the bottom of the conical water guide plate (7); and a filter component (8) for filtering the wastewater after electrocatalytic treatment is provided at the bottom of the oxidation treatment component (6); The filtering assembly (8) comprises a conical cover (81) installed below the oxidation treatment assembly (6); the conical cover (81) is fixed to the inside of the treatment tank (1); a vertical pipe (82) is fixed to the water outlet at the bottom end of the conical cover (81); a plurality of filter screens (83) for filtering wastewater are fixed on the outer wall of the vertical pipe (82); a water baffle (84) is fixed to the outer end of the vertical pipe (82); the bottom end of the vertical pipe (82) penetrates the water baffle (84) and extends to the bottom of the water baffle (84); a drainage pipe (3) is fixedly connected to the bottom of one side of the treatment tank (1); the drainage pipe (3) is located at the top of the water baffle (84); the electrolyzed wastewater flows into the vertical pipe (82) through the conical cover (81); the liquid passes through the filter screen (83) and flows to the top of the water baffle (84) and is then discharged through the drainage pipe (3); the oxidation product is retained by the filter screen (83) in the vertical pipe (82) to achieve solid-liquid separation; A rotating column (85) is provided at the bottom end of the vertical tube (82). A plurality of mud chambers (86) are provided on the rotating column (85) and are connected to the interior of the vertical tube (82). The oxidation products in the vertical tube (82) fall into the mud chambers (86) under the action of their own weight. A rotatable shaft (88) is fixed in the middle of the rotating column (85). The rotating shaft (88) drives the rotating column (85) to rotate so as to pour the oxidation products in the mud chambers (86) into the bottom end of the processing tank (1).

2. The device for deep treatment and recycling of toxic chemical wastewater according to claim 1 is characterized by: The two ends of the rotating shaft (88) are respectively movably connected to the front side and the rear side of the processing tank (1) through bearings, the front end of the rotating shaft (88) passes through the processing tank (1) and extends out of the front side of the processing tank (1), and a motor (89) for driving the rotating shaft (88) to rotate is fixed to the front end of the rotating shaft (88); The outer wall of the rotating column (85) is provided with an annular groove, and a sealing ring (87) is fixed at the bottom end of the vertical pipe (82), and the sealing ring (87) is in contact with the inner wall of the annular groove; The bottom of the processing tank (1) is movably connected to a mud discharge door (810) that can be opened. After the mud discharge door (810) is opened, the oxidation product is discharged from the bottom opening of the processing tank (1).

3. The device for deep treatment and recycling of toxic chemical wastewater according to claim 1 is characterized by: The oxidant addition component (5) comprises a circular protective box (51) fixed at the bottom of the oxidant material box (4), a rotatable hollow turntable (52) is provided inside the circular protective box (51), a U-shaped material trough (53) is fixed at the top of the hollow turntable (52), the opening at the top of the U-shaped material trough (53) is connected to the opening at the bottom of the oxidant material box (4), and is used for allowing the oxidant in the oxidant material box (4) to fall into the U-shaped material trough (53), and a discharge pipe (54) is fixed at the bottom of the circular protective box (51), and the bottom end of the discharge pipe (54) is connected to the inside of the processing tank (1), and the oxidant falling into the U-shaped material trough (53) moves to the inside of the processing tank (1) through the discharge pipe (54) after following the rotation of the hollow turntable (52).

4. The device for deep treatment and recycling of toxic chemical wastewater according to claim 3 is characterized by: A driving mechanism (55) for driving the hollow turntable (52) to rotate is provided in the middle of the hollow turntable (52), and the driving mechanism (55) passes through the hollow turntable (52) and the circular protection box (51) and extends to the front side of the processing tank (1); The driving mechanism (55) comprises a rotating shaft (551), the rear end of which passes through the circular protective box (51) and is fixed to the hollow turntable (52); the top end of the interior of the processing tank (1) is movably connected to a driven shaft (554) via a bearing; a water wheel (555) is fixed to the outer end of the driven shaft (554); the water wheel (555) is located below the water outlet of the liquid inlet pipe (2); and the driven shaft (554) and the rotating shaft (551) are driven via a gear transmission assembly (552) and a belt transmission assembly (553).

5. The device for deep treatment and recycling of toxic chemical wastewater according to claim 1 is characterized by: The oxidation treatment component (6) comprises an oxidation trough (61) arranged below the conical water guide plate (7); a hollow rod (62) is fixed in the middle cavity of the oxidation trough (61) through a bracket; a spring (63) is fixed inside the hollow rod (62); a moving rod (64) is fixed at the top end of the spring (63); the top end of the moving rod (64) extends from the inside of the hollow rod (62) and is fixed with a hemispherical water retaining cap (65); a plurality of equally spaced cross bars (66) are fixed to the outer wall of the bottom end of the hemispherical water retaining cap (65); an electrode (67) is fixed to the bottom end of the cross bar (66); a rubber rod (68) is fixed to the bottom end of the moving rod (64); a rubber plug (69) is fixed to the outside of the top end of the rubber rod (68); a plurality of equally spaced through holes (610) are opened at the bottom end of the oxidation trough (61); the rubber plug (69) is matched with the through holes (610).

6. The device for deep treatment and recycling of toxic chemical wastewater according to claim 5 is characterized by: A scraper ring (611) is provided at the outer end of each electrode (67), the scraper ring (611) is in contact with the outer wall of the electrode (67), and one end of the scraper ring (611) away from the electrode (67) is fixed to the inner wall of the processing tank (1).

7. The device for deep treatment and recycling of toxic chemical wastewater according to claim 1, characterized in that: A plurality of support legs (9) distributed at equal intervals are fixed to the bottom end of the outer wall of the treatment tank (1), and the bottom ends of the support legs (9) are in contact with the ground; A ladder (10) for people to climb is fixed on the rear side of the processing tank (1) and is used to add oxidant into the oxidant tank (4).

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