A CoSD reaction tower for deep treatment of coal chemical wastewater

Abstract

The invention relates to the technical field of coal chemical wastewater treatment, in particular to a CoSD reaction tower for deep treatment of coal chemical wastewater; a tower body; an ozone tube, one end of the ozone tube is connected to the bottom of the tower body; a feed pipe, the feed pipe is located on a side away from the tower body and an opening at the bottom of the feed pipe is connected to the outer wall of the ozone tube; an ozone booster pump, the ozone booster pump is located on a side away from the tower body, and a No. 1 air inlet of the ozone booster pump is connected to the other end of the ozone tube; an ozone generator, the ozone generator is located on a side close to the ozone booster pump; a feed unit, the feed unit is located in the feed pipe and is used to control the feeding of a catalyst; the invention ensures that ozone and the ozone catalyst are fully mixed by mixing them into wastewater, improves the reaction efficiency of ozone and wastewater, and makes the invention have the characteristics of high efficiency, convenient operation and economical practicality.

Description

Technical Field

[0001] The invention relates to the technical field of coal chemical wastewater treatment, in particular to a CoSD reaction tower for deep treatment of coal chemical wastewater. Background Art

[0002] Coal chemical wastewater is mainly high-concentration gas washing wastewater, which contains toxic and harmful substances such as phenols, alkanes, aromatic hydrocarbons, cyanide, etc. Among them, the main work flow of coal chemical wastewater treatment is pretreatment-biochemical treatment-deep treatment.

[0003] The treatment of organic matter in coal chemical wastewater is an extremely complex and difficult process, so deep treatment of wastewater is required to reduce organic matter in wastewater. At the same time, ozone catalytic oxidation technology has better treatment effect than ozone oxidation technology in deep treatment process. Coal chemical wastewater is treated in a reaction tower to ensure the good treatment effect of ozone catalytic oxidation technology. It is necessary to mix ozone and ozone catalyst evenly. Otherwise, ozone is easy to react with wastewater before being catalyzed by ozone catalyst, which reduces the utilization rate of ozone.

[0004] The prior art uses ozone catalytic oxidation technology in the deep treatment scheme of coal chemical wastewater. Compared with ozone oxidation, ozone catalytic oxidation has better treatment effect and is the preferred technology for deep treatment of coal chemical wastewater. However, in the prior art, the ozone catalyst needs to be added once from the upper side wall of the tower body before the ozone is introduced, and it cannot be added continuously. Otherwise, when the ozone reacts with the wastewater, the addition of the ozone catalyst will cause the unreacted ozone in the tower body to enter from the ozone catalyst feeding port. At the same time, after the ozone catalyst enters the tower body, it will gradually accumulate at the bottom of the water, which will cause the ozone catalyst to be unevenly distributed in the tower body. Therefore, the mixing between ozone and the ozone catalyst is uneven, so that the ozone reacts with the wastewater before the ozone catalyst catalyzes the ozone, resulting in too low ozone utilization, thus increasing the use cost of ozone catalytic oxidation and the wastewater treatment time.

[0005] In view of this, in order to overcome the above technical problems, the present invention proposes a CoSD reaction tower for deep treatment of coal chemical wastewater, which solves the above technical problems. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art, the present invention proposes a CoSD reaction tower for deep treatment of coal chemical wastewater. By strengthening the mixing of ozone and ozone catalyst in wastewater, the utilization rate of ozone is improved, making the present invention highly efficient, easy to operate, and economical and practical.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a CoSD reaction tower for deep treatment of coal chemical wastewater according to the present invention comprises:

[0008] tower body;

[0009] An ozone tube, one end of which is connected to the bottom of the tower body;

[0010] A feed pipe, the feed pipe is located at a side away from the tower body and an opening at the bottom of the feed pipe is connected to the outer wall of the ozone tube;

[0011] An ozone booster pump, the ozone booster pump is located at a side away from the tower body, and a No. 1 air inlet of the ozone booster pump is connected to the other end of the ozone tube;

[0012] An ozone generator, the ozone generator is located on a side close to the ozone booster pump, and a No. 3 air outlet of the ozone generator is connected to a No. 1 air inlet of the ozone booster pump;

[0013] A feeding unit is located in the feeding pipe and is used to control the feeding of the catalyst.

[0014] Preferably, the feeding unit includes a motor, an electric push rod, a one-way valve, a feed port, and a piston. The motor is located at the top of the feed pipe, and the motor is used to drive the electric push rod. The electric push rod is located inside the feed pipe, and one end of the electric push rod is fixedly connected to the piston, and the piston is slidably connected to the inner wall of the feed pipe. The one-way valve is located at the lower end opening of the feed pipe, and the feed port is connected to the upper outer wall of the feed pipe.

[0015] Preferably, the feeding unit includes an air pump, a feeding cover, and a one-way valve; the air pump is located between the tower body and the feeding pipe and the No. 2 air outlet pipe of the air pump is connected to the side wall of the feeding pipe, and the feeding cover is connected to the top of the feeding pipe to control the gas flow in the air pipe.

[0016] Preferably, the side wall of the feed pipe is connected to one end of an air pipe, the other end of the air pipe is connected to the ozone pipe, a control valve is provided in the air pipe, and an ozone detector is installed on the inner wall of the feed pipe.

[0017] Preferably, the No. 2 air outlet of the air pump is connected to the outer wall of the tower body through an air outlet pipe, and a vacuum pressure relief valve is installed on the feed cover.

[0018] Preferably, an air inlet pipe is provided at the center position of the bottom surface of the tower body, the air inlet pipe is connected to one end of the ozone tube, the outer wall of the air inlet pipe is connected to multiple aeration pipes, the outer wall of the bottom of the air inlet pipe is fixedly connected to multiple discharge pipes, and the discharge pipe is connected to the inside of the air inlet pipe, and the inner wall of the lower part of the air inlet pipe is fixedly connected to a filter screen, and the filter screen is used to filter the catalyst to prevent the catalyst from blocking the aeration pipe.

[0019] Preferably, the center position of the bottom end surface of the filter screen bulges downward.

[0020] Preferably, the opening direction of the discharge pipe is obliquely upward.

[0021] Preferably, the air intake pipe includes a plurality of rotating tubes and a plurality of fixed tubes, the plurality of fixed tubes are fixedly connected by a plurality of U-shaped rods, the rotating tube is located between the two fixed tubes, the lower end surfaces of the rotating tube and the fixed tube are provided with annular T-shaped grooves, the upper end surfaces of the rotating tube and the fixed tube are provided with annular T-shaped blocks, and the annular T-shaped blocks are rotatably sealed and connected to the adjacent annular T-shaped grooves.

[0022] Preferably, a plurality of fan blades are fixedly connected to the inner wall of the rotating tube, and the aeration pipe is located on the outer wall of the rotating tube.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The present invention ensures that ozone and the ozone catalyst are fully mixed by mixing them into wastewater, thereby improving the reaction efficiency of ozone and wastewater, making the present invention highly efficient, easy to operate, and economical and practical.

[0025] 2. In the present invention, the ozone catalyst is discharged from the discharge port under the upward force of the pressurized ozone gas. The ozone catalyst will continue to move upward in the wastewater under the action of the pressurized ozone gas. At the same time, the rotation of the rotating tube in the air inlet pipe drives the aeration tube to rotate in the wastewater. The aeration tube will stir the wastewater when rotating, driving the wastewater to move in the tower body. In addition, the ozone bubbles generated by the aeration tube slightly drive the movement of the ozone catalyst. Therefore, the ozone catalyst will break the ozone bubbles in the wastewater, so that the ozone catalyst and ozone are evenly mixed, thereby increasing the utilization rate of ozone and making the ozone and wastewater react more fully.

[0026] 3. In the present invention, the feeding unit in the feeding pipe controls the ozone catalyst to enter the ozone tube and mix with ozone. At the same time, the utilization rate of ozone gas is further utilized so that ozone pushes the ozone catalyst to be discharged from the feeding pipe, thereby reducing additional power sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0028] Figure 1 is a stereogram of the present invention;

[0029] Figure 2 yes Figure 1 A cross-sectional view of an embodiment of the invention;

[0030] Figure 3 yes Figure 1 A cross-sectional view of another embodiment of the present invention;

[0031] Figure 4 yes Figure 2 A partial enlarged view of point C in the middle;

[0032] Figure 5 yes Figure 6 Partial cross-sectional view at the middle BB;

[0033] Figure 6 yes Figure 2 A partial enlarged view of the middle A;

[0034] In the figure: 1. tower body; 2. ozone tube; 21. ozone booster pump; 211. outlet No. 1; 212. inlet No. 1; 22. ozone generator; 221. outlet No. 3; 3. feed pipe; 31. feed unit; 311. motor; 312. electric push rod; 313. check valve; 314. feed port; 315. piston; 321. air pump; 322. feed cover; 323. Oxygen detector; 324, vacuum relief valve; 325, No. 2 air inlet; 326, No. 2 air outlet; 327, air outlet pipe; 33, air pipe; 331, control valve; 4, air inlet pipe; 41, aeration pipe; 42, filter screen; 43, discharge pipe; 44, rotating pipe; 45, fixed pipe; 46, fan blade; 47, annular T-block; 48, U-shaped rod; 49, annular T-slot; 5, water inlet. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in combination with specific implementation methods.

[0036] like Figures 1 to 6 As shown;

[0037] Embodiment 1;

[0038] A CoSD reaction tower for deep treatment of coal chemical wastewater, comprising:

[0039] Tower body 1;

[0040] An ozone tube 2, one end of which is connected to the bottom of the tower body 1;

[0041] A feed pipe 3, wherein the feed pipe 3 is located at a side away from the tower body 1 and an opening at the bottom of the feed pipe 3 is connected to the outer wall of the ozone tube 2;

[0042] An ozone booster pump 21, the ozone booster pump 21 is located at a side away from the tower body 1, and a first air inlet 212 of the ozone booster pump 21 is connected to the other end of the ozone tube 2;

[0043] An ozone generator 22, the ozone generator 22 is located on a side close to the ozone booster pump 21, and a third air outlet 221 of the ozone generator 22 is connected to a first air inlet 212 of the ozone booster pump 21;

[0044] A feeding unit 31 is located in the feeding pipe 3 and is used to control the feeding of the catalyst.

[0045] During operation, ozone catalytic oxidation technology is used in the deep treatment scheme of coal chemical wastewater in the prior art. Compared with ozone oxidation, ozone catalytic oxidation has better treatment effect and is the preferred technology for deep treatment of coal chemical wastewater. However, in the prior art, the ozone catalyst needs to be added from the upper side wall of the tower body before the ozone is introduced, and it cannot be added continuously. At the same time, the ozone catalyst will gradually accumulate at the bottom of the water after entering the tower body, which will cause the ozone catalyst to be unevenly distributed in the tower body. Therefore, the mixing between ozone and ozone catalyst is uneven, so that ozone reacts with wastewater before the ozone catalyst catalyzes the ozone, resulting in too low ozone utilization rate, thereby increasing the use cost of ozone catalytic oxidation and the wastewater treatment time.

[0046] Therefore, the inventors of this work pass wastewater into the tower body 1 from the water inlet 5, and then turn on the ozone generator 22 to provide ozone. The ozone enters the ozone tube 2 through the ozone booster pump 21. At the same time, the ozone catalyst inside the feed pipe 3 enters the ozone tube 2 under the action of the feed unit 31. The ozone enters the air inlet pipe 4 together with the ozone catalyst. The catalyst and a part of the ozone enter the tower body 1 from the discharge port to react with the wastewater, and the other part of the ozone circulates inside the air inlet pipe 4 and is discharged from the aeration pipe 41. The diameter of the ozone bubble in the wastewater is too large, and the contact area with the water is very small. At the same time, the ozone catalyst is discharged from the discharge port due to the upward force of the pressurized ozone gas and continues to move upward, so that the ozone catalyst breaks the ozone bubbles and increases the ozone The contact area with the wastewater is increased, and at the same time, the ozone catalyst catalyzes ozone to accelerate the reaction between ozone and wastewater. Moreover, when ozone circulates inside the air inlet pipe 4, the ozone pressurized by the ozone booster pump 21 drives the fan blades 46 fixed to the inner wall of the rotating tube 44 to rotate, so that the fan blades 46 drive the rotating tube 44 to make the aeration pipe 41 rotate in the wastewater, so that the aeration pipe can be stirred in the wastewater, and at the same time, the ozone gas ejected from the aeration pipe 41 can also drive the movement of the wastewater in the tower body 1. Therefore, the continuous movement of the wastewater in the tower body 1 will drive the ozone catalyst discharged from the discharge pipe 43 to move together, so the ozone catalyst continuously moves in the wastewater, so that the contact area between ozone and the ozone catalyst is larger, and the effect of wastewater treatment is further improved.

[0047] The present invention controls the feeding speed of the ozone catalyst by controlling the feeding unit 31, so that ozone and the ozone catalyst enter the wastewater together. At the same time, the pressurized ozone gas drives the rotating tube 44 to rotate, so that the aeration tube 41 fixed to the rotating tube 44 is stirred in the wastewater, ensuring sufficient contact between the ozone and the ozone catalyst, so that the ozone and the wastewater fully react.

[0048] In this embodiment, refer to the attached Figure 2 The feeding unit 31 includes a motor 311, an electric push rod 312, a one-way valve 313, a feed port 314, and a piston 315. The motor 311 is located at the top of the feeding pipe 3. The motor 311 is used to drive the electric push rod 312. The electric push rod 312 is located inside the feeding pipe 3. One end of the electric push rod 312 is fixedly connected to the piston 315. The piston 315 is slidably connected to the inner wall of the feeding pipe 3. The one-way valve 313 is located at the lower end opening of the feeding pipe 3. The feeding port 314 is connected to the upper outer wall of the feeding pipe 3.

[0049] During operation, the staff turns on the motor 311 to move the piston 315 upward to leak out of the feed port 314, and the ozone catalyst enters from the feed port 314. The piston 315 is then moved downward to change the air pressure in the feed pipe 3 through the piston 315 so that the ozone catalyst passes through the one-way valve 313 in the lower opening of the feed port 314 and enters the ozone tube 2. The ozone catalyst is brought into the tower body 1 by the pressurized ozone gas to react with the wastewater, so that the ozone and the wastewater can be fully mixed and reacted when reacting, thereby increasing the utilization rate of ozone.

[0050] Embodiment 2;

[0051] The difference from Example 1 is:

[0052] In this embodiment, refer to the attached Figure 3 The feeding unit 31 includes an air pump 321, a feeding cover 322, and a one-way valve 313; the air pump 321 is located between the tower body 1 and the feeding pipe 3, and the second air inlet 325 of the air pump 321 is connected to the side wall of the feeding pipe 3, and the feeding cover 322 is connected to the top of the feeding pipe 3, so as to control the gas circulation in the air pipe 33.

[0053] During operation, the staff opens the feed cover 322, pours the ozone catalyst into the feed pipe 3 from the feed cover 322, covers the feed cover 322, turns on the air pump 321, and allows the air pump 321 to add gas into the feed pipe 3 through the second air inlet 325 to increase the internal pressure of the feed pipe 3, so that the ozone catalyst passes through the one-way valve 313 into the ozone tube 2, and the ozone catalyst is brought into the tower body 1 by the pressurized ozone gas to react with the wastewater, so that the ozone and the wastewater can be fully mixed and reacted when reacting, thereby increasing the utilization rate of ozone.

[0054] Embodiment 3;

[0055] The difference from Example 2 is:

[0056] In this embodiment, refer to the attached Figure 3 The side wall of the feed pipe 3 is connected to one end of an air pipe 33, the other end of the air pipe 33 is connected to the ozone pipe 2, a control valve 331 is provided in the air pipe 33, and an ozone detector 323 is installed on the inner wall of the feed pipe 3.

[0057] During operation, the staff opens the feed cover 322, pours the ozone catalyst from the feed cover 322 into the feed pipe 3, covers the feed cover 322, and then opens the control valve 331 in the air pipe 33, so that a part of the ozone in the ozone pipe 2 enters the feed pipe 3 from the air pipe 33, increases the pressure inside the feed pipe 3, and allows the ozone catalyst to pass through the one-way valve 313 into the ozone pipe 2. The ozone catalyst is brought into the tower body 1 by the pressurized ozone gas to react with the wastewater; when the staff needs When it is necessary to add ozone catalyst, close the control valve 331 in the air pipe 33, open the air pump 321 to discharge the ozone in the feed pipe 3 from the opening at the lower end of the feed pipe 3, and when the ozone detector 323 detects that the ozone content is close to 0 or is harmless to the environment and human body, the feed cover 322 can be opened, and the ozone catalyst can be poured into the feed pipe 3 from the feed cover 322 to replenish the ozone catalyst, thereby increasing the utilization rate of ozone. At the same time, the structure is simple and convenient, which improves the actual use of the machine.

[0058] In this embodiment, refer to the attached Figure 3 The second air outlet 326 of the air pump 321 is connected to the outer wall of the tower body 1 through an air outlet pipe 327, and a vacuum pressure relief valve 324 is installed on the feed cover 322.

[0059] During operation, the staff discharges the ozone in the feed pipe 3 directly into the tower body 1 through the air pump 321 until the ozone detector 323 detects that the ozone content in the feed pipe 3 is close to 0 or the ozone content in the feed pipe 3 is harmless to the human body or the environment, so that the ozone reacts with the wastewater, thereby increasing the utilization rate of the ozone; at the same time, after the ozone in the feed pipe 3 enters the tower body 1, the pressure inside the feed pipe 3 decreases, so the vacuum pressure relief valve 324 installed on the feed cover 322 makes the pressure in the air inlet pipe 4 equal to the atmospheric pressure, and then the feed cover 322 is opened to replenish the ozone catalyst, thereby increasing the safety of the machine and the actual use effect.

[0060] Embodiment 4;

[0061] The difference from Example 1 is:

[0062] In this embodiment, refer to the attached Figure 2Or 3, an air inlet pipe 4 is provided at the center of the bottom surface of the tower body 1, the air inlet pipe 4 is connected to one end of the ozone tube 2, the outer wall of the air inlet pipe 4 is connected to multiple aeration pipes 41, the outer wall of the bottom of the air inlet pipe 4 is fixedly connected to multiple discharge pipes 43, and the discharge pipes 43 are connected to the inside of the air inlet pipe 4, and the inner wall of the lower part of the air inlet pipe 4 is fixedly connected to a filter screen 42, and the filter screen 42 is used to filter the catalyst to prevent the catalyst from blocking the aeration pipe 41.

[0063] During operation, the air inlet pipe 4 includes an aeration pipe 41, a filter screen 42, and a discharge pipe 43. The air inlet pipe 4 is provided at the center of the bottom surface of the tower body 1. The air inlet pipe 4 is connected to one end of the ozone pipe 2. The outer wall of the air inlet pipe 4 is connected to multiple aeration pipes 41. The outer wall of the bottom of the air inlet pipe 4 is fixedly connected to multiple discharge pipes 43, and the discharge pipe 43 is connected to the inside of the air inlet pipe 4. The inner wall of the lower part of the air inlet pipe 4 is fixedly connected to a filter screen 42. The staff discharges ozone and ozone catalyst from the ozone pipe 2 into the air inlet pipe 4. The filter screen 42 in the air inlet pipe 4 prevents the ozone catalyst from passing through, so that it is discharged from the discharge port into the wastewater to prevent the ozone catalyst from blocking the aeration pipe 41. The ozone gas passing through the filter screen 42 moves to the top of the air inlet pipe 4 and is discharged into the wastewater through the aeration pipe on the side wall of the air inlet pipe 4. The ozone gas coming out of the aeration pipe stirs the water flow to ensure the full reaction of ozone and wastewater.

[0064] In this embodiment, refer to the attached Figure 6 The center position of the bottom end surface of the filter screen 42 bulges downward.

[0065] During operation, ozone drives the ozone catalyst into the air inlet pipe, and the center of the bottom end surface of the filter 42 bulges downward. When the ozone catalyst reaches the position of the filter 42, the filter 42 that bulges downward separates the ozone catalyst to the surroundings, and the ozone enters the fixed tube 45 and the rotating tube 44 from the middle of the filter 42, preventing the ozone catalyst from blocking the filter 42, thereby ensuring the full reaction of ozone and wastewater.

[0066] Embodiment 5;

[0067] The difference from Example 4 is that:

[0068] In this embodiment, refer to the attached Figure 6 The opening direction of the discharge pipe 43 is obliquely upward.

[0069] During operation, the ozone catalyst is discharged from the discharge port of the arc-shaped pipe through the filter screen 42 under the action of the pressurized ozone, so that the ozone catalyst is discharged smoothly, preventing the ozone catalyst from being blocked at the discharge port, and ensuring the full reaction of ozone and wastewater.

[0070] In this embodiment, refer to the attached Figure 6The air intake pipe 4 includes a plurality of rotating tubes 44 and a plurality of fixed tubes 45, and the plurality of fixed tubes 45 are fixedly connected by a plurality of U-shaped rods 48. The rotating tube 44 is located between the two fixed tubes 45. The lower end surfaces of the rotating tube 44 and the fixed tube 45 are provided with an annular T-shaped groove 49, and the upper end surfaces of the rotating tube 44 and the fixed tube 45 are provided with an annular T-shaped block 47. The annular T-shaped block 47 is rotatably sealed and connected to the adjacent annular T-shaped groove 49.

[0071] During operation, the air inlet pipe 4 includes an aeration pipe 41, a filter screen 42, a discharge pipe 43, a rotating pipe 44, a fixed pipe 45, an annular T-shaped block 47, a U-shaped rod 48, and an annular T-shaped groove 49. The bottom of the discharge pipe 43 is fixedly connected to the ground inside the tower body 1. The staff provides an annular T-shaped groove 49 on the lower end surface of the rotating pipe 44 and the fixed pipe 45, and an annular T-shaped block 47 is provided on the upper end surface of the rotating pipe 44 and the fixed pipe 45. The annular T-shaped block 47 is rotatably sealed and connected with the annular T-shaped groove 49, so that the rotating pipe 44 and the fixed pipe 45 are sealed by the annular T-shaped block 47 to prevent wastewater from flowing from the rotating pipe 44 and the fixed pipe 45. 45 connecting surfaces enter the air intake pipe 4, causing the wastewater to fall inside the air intake pipe 4, reducing the movement speed of the ozone gas in the air intake pipe 4. As time goes by, the wastewater entering the air intake pipe 4 gradually increases, blocking the inside of the air intake pipe 4, making it impossible for the ozone gas to be discharged through the aeration pipe 41. Therefore, it is necessary to prevent the wastewater from entering the air intake pipe. Therefore, this structure improves the practicability of the equipment, and the staff connects multiple fixed pipes 45 through U-shaped rods 48, so that the pressure generated by the gravity of the fixed pipes 45 will not affect the rotating pipe 44, thereby reducing the friction when the rotating rod 44 rotates, thereby improving the practicability of the equipment.

[0072] In this embodiment, refer to the attached Figure 6 A plurality of fan blades 46 are fixedly connected to the inner wall of the rotating tube 44 , and the aeration tube 41 is located on the outer wall of the rotating tube 44 .

[0073] During operation, the air inlet pipe 4 includes an aeration pipe 41, a filter screen 42, a discharge pipe 43, a rotating pipe 44, a fixed pipe 45, a fan blade 46, an annular T-block 47, a U-shaped rod 48, and an annular T-slot 49. The aeration pipe 41 is located on the outer wall of the rotating pipe 44, and the aeration pipe 41 is connected to the inside of the rotating pipe 44. The ozone entering the air inlet pipe 4 drives the fan blade 46 fixed to the inner wall of the rotating pipe 44 to rotate, so that the rotating pipe 44 rotates. At the same time, the rotating pipe 44 drives the aeration pipe 41 to stir the wastewater. At the same time, the bubbles generated by the aeration pipe 41 can also have a certain turbulent effect on the wastewater, so that the ozone catalyst moves continuously in the tower body 1, increases the mixing degree of the ozone catalyst in the tower body 1, and improves the utilization rate of ozone.

Claims

1. A CoSD reaction tower for deep treatment of coal chemical wastewater, comprising: Tower body(1); an ozone tube (2), one end of the ozone tube (2) being in communication with the bottom of the tower body (1); A feed pipe (3), the feed pipe (3) being located on a side away from the tower body (1) and the opening at the bottom of the feed pipe (3) being in communication with the outer wall of the ozone tube (2); an ozone booster pump (21), the ozone booster pump (21) being located at a side away from the tower body (1), and a first air inlet (212) of the ozone booster pump (21) being connected to the other end of the ozone tube (2); An ozone generator (22), the ozone generator (22) being located on a side close to the ozone booster pump (21), and a third air outlet (221) of the ozone generator (22) being in communication with a first air inlet (212) of the ozone booster pump (21); It is characterized by further comprising: A feeding unit (31), the feeding unit (31) is located in the feeding pipe (3) and is used to control the feeding of the ozone catalyst; ozone enters the ozone tube (2) through the ozone booster pump (21), and at the same time, the ozone catalyst inside the feeding pipe (3) enters the ozone tube (2) under the action of the feeding unit (31), and the ozone and the ozone catalyst enter the air intake pipe (4) together; An air inlet pipe (4) is provided at the center of the bottom surface of the tower body (1), the air inlet pipe (4) is connected to one end of the ozone tube (2), the outer wall of the air inlet pipe (4) is connected to a plurality of aeration pipes (41), the outer wall of the bottom of the air inlet pipe (4) is fixedly connected to a plurality of discharge pipes (43), and the opening direction of the discharge pipe (43) is obliquely upward and connected to the inside of the air inlet pipe (4), the inner wall of the lower part of the air inlet pipe (4) is fixedly connected to a filter screen (42), the center of the bottom end surface of the filter screen (42) bulges downward, and is used to filter the catalyst to prevent the catalyst from blocking the aeration pipe (41); The air inlet pipe (4) comprises a plurality of rotating pipes (44) and a plurality of fixed pipes (45), the plurality of fixed pipes (45) being fixedly connected via a plurality of U-shaped rods (48), the rotating pipe (44) being located between two fixed pipes (45), the lower end surfaces of the rotating pipe (44) and the fixed pipe (45) being provided with an annular T-shaped groove (49), the upper end surfaces of the rotating pipe (44) and the fixed pipe (45) being provided with an annular T-shaped block (47), the annular T-shaped block (47) being rotatably sealedly connected to the adjacent annular T-shaped groove (49); the inner wall of the rotating pipe (44) being fixedly connected with a plurality of blades (46), the aeration pipe (41) being located on the outer wall of the rotating pipe (44); the ozone in the air inlet pipe (4) drives the blades (46) fixedly connected to the inner wall of the rotating pipe (44) to rotate, so that the rotating pipe (44) rotates, and at the same time the rotating pipe (44) drives the aeration pipe (41) to stir the wastewater; The feed unit (31) comprises an air pump (321), a feed cover (322), and a one-way valve (313); the air pump (321) is located between the tower body (1) and the feed pipe (3), and the second air inlet (325) of the air pump (321) is connected to the side wall of the feed pipe (3); the feed cover (322) is connected to the top of the feed pipe (3) and is used to control the flow of gas in the air pipe (33).

2. A CoSD reaction tower for deep treatment of coal chemical wastewater, comprising: Tower body(1); an ozone tube (2), one end of the ozone tube (2) being in communication with the bottom of the tower body (1); A feed pipe (3), the feed pipe (3) being located on a side away from the tower body (1) and the opening at the bottom of the feed pipe (3) being in communication with the outer wall of the ozone tube (2); an ozone booster pump (21), the ozone booster pump (21) being located at a side away from the tower body (1), and a first air inlet (212) of the ozone booster pump (21) being connected to the other end of the ozone tube (2); An ozone generator (22), the ozone generator (22) being located on a side close to the ozone booster pump (21), and a third air outlet (221) of the ozone generator (22) being in communication with a first air inlet (212) of the ozone booster pump (21); It is characterized by further comprising: A feeding unit (31), the feeding unit (31) is located in the feeding pipe (3) and is used to control the feeding of the ozone catalyst; ozone enters the ozone tube (2) through the ozone booster pump (21), and at the same time, the ozone catalyst inside the feeding pipe (3) enters the ozone tube (2) under the action of the feeding unit (31), and the ozone and the ozone catalyst enter the air intake pipe (4) together; An air inlet pipe (4) is provided at the center of the bottom surface of the tower body (1), the air inlet pipe (4) is connected to one end of the ozone tube (2), the outer wall of the air inlet pipe (4) is connected to a plurality of aeration pipes (41), the outer wall of the bottom of the air inlet pipe (4) is fixedly connected to a plurality of discharge pipes (43), and the opening direction of the discharge pipe (43) is obliquely upward and connected to the inside of the air inlet pipe (4), the inner wall of the lower part of the air inlet pipe (4) is fixedly connected to a filter screen (42), the center of the bottom end surface of the filter screen (42) bulges downward, and is used to filter the catalyst to prevent the catalyst from blocking the aeration pipe (41); The air inlet pipe (4) comprises a plurality of rotating pipes (44) and a plurality of fixed pipes (45), the plurality of fixed pipes (45) being fixedly connected via a plurality of U-shaped rods (48), the rotating pipe (44) being located between two fixed pipes (45), the lower end surfaces of the rotating pipe (44) and the fixed pipe (45) being provided with an annular T-shaped groove (49), the upper end surfaces of the rotating pipe (44) and the fixed pipe (45) being provided with an annular T-shaped block (47), the annular T-shaped block (47) being rotatably sealedly connected to the adjacent annular T-shaped groove (49); the inner wall of the rotating pipe (44) being fixedly connected with a plurality of blades (46), the aeration pipe (41) being located on the outer wall of the rotating pipe (44); the ozone in the air inlet pipe (4) drives the blades (46) fixedly connected to the inner wall of the rotating pipe (44) to rotate, so that the rotating pipe (44) rotates, and at the same time the rotating pipe (44) drives the aeration pipe (41) to stir the wastewater; The feed unit (31) comprises an air pump (321), a feed cover (322), and a one-way valve (313); the air pump (321) is located between the tower body (1) and the feed pipe (3), and the second air inlet (325) of the air pump (321) is in communication with the side wall of the feed pipe (3); the feed cover (322) is connected to the top of the feed pipe (3) and is used to control the flow of gas in the air pipe (33); The side wall of the feed pipe (3) is connected to one end of an air pipe (33), the other end of the air pipe (33) is connected to the ozone pipe (2), a control valve (331) is provided in the air pipe (33), and an ozone detector (323) is installed on the inner wall of the feed pipe (3); The second air outlet (326) of the air pump (321) is connected to the outer wall of the tower body (1) via an air outlet pipe (327), and a vacuum pressure relief valve (324) is installed on the feed cover (322).

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