CN115520953A - Coal chemical industry advanced wastewater treatment CoSD reaction tower - Google Patents

Abstract

The invention relates to the technical field of coal chemical industry wastewater treatment, in particular to a CoSD reaction tower for advanced treatment of coal chemical industry wastewater; a tower body; one end of the ozone pipe is communicated with the bottom of the tower body; the feeding pipe is positioned on one side far away from the tower body, and an opening at the bottom of the feeding pipe is communicated with the outer wall of the ozone pipe; the ozone booster pump is positioned on one side far away from the tower body, and a first air inlet of the ozone booster pump is communicated with the other end of the ozone pipe; the ozone generator is positioned at one side close to the ozone booster pump; a feeding unit positioned in the feeding pipe and used for controlling the feeding of the catalyst; according to the invention, the ozone and the ozone catalyst are mixed into the wastewater, so that the ozone and the ozone catalyst are fully mixed, the reaction efficiency of the ozone and the wastewater is improved, and the ozone-wastewater mixed reactor has the characteristics of high efficiency, convenience in operation, economy and practicability.

Description

CoSD reaction tower for advanced treatment of coal chemical wastewater

technical field

The invention relates to the technical field of coal chemical wastewater treatment, in particular to a CoSD reaction tower for advanced treatment of coal chemical wastewater.

Background technique

Coal chemical industry wastewater is mainly high-concentration coal gas washing wastewater, which contains toxic and harmful substances such as phenols, alkanes, aromatic hydrocarbons, and cyanide. Among them, the main workflow of coal chemical wastewater treatment is pretreatment-biochemical treatment-advanced treatment.

The treatment of organic matter in coal chemical wastewater is an extremely complex and difficult process. Therefore, advanced treatment of wastewater is required to reduce organic matter in wastewater. At the same time, ozone catalytic oxidation technology is better than ozone oxidation technology in the process of advanced treatment. Coal chemical wastewater is treated in the reaction tower to ensure that the ozone catalytic oxidation technology has a good treatment effect. It is necessary to mix the ozone and the ozone catalyst evenly, otherwise the ozone will facilitate the reaction of the wastewater before being catalyzed by the ozone catalyst, which will reduce the utilization rate of the ozone.

Ozone catalytic oxidation technology is used in the advanced treatment scheme of coal chemical industry wastewater in the prior art. Compared with ozone oxidation, ozone catalytic oxidation has a better treatment effect and is the preferred technology in the advanced treatment of coal chemical industry wastewater. However, in the prior art, the ozone catalyst needs to be put into the side wall above the outer wall of the tower at one time before the ozone is introduced, and cannot be continuously added, otherwise the addition of the ozone catalyst when the ozone reacts with the wastewater will cause the unreacted ozone in the tower to be discharged from the tower. The ozone catalyst enters the feeding port, and at the same time, the ozone catalyst will gradually accumulate at the bottom of the water after entering the tower body, which will cause uneven distribution of the ozone catalyst in the tower body, so the mixing between the ozone and the ozone catalyst is uneven, so that the ozone is in the ozone catalyst. Before ozone is catalyzed, it reacts with wastewater, resulting in low ozone utilization rate, which increases the cost of ozone catalytic oxidation and the duration of wastewater treatment.

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

Contents of the invention

In order to make up for the deficiencies in the prior art, the present invention proposes a CoSD reaction tower for the advanced treatment of coal chemical wastewater. By strengthening the mixing of ozone and ozone catalyst in the wastewater, the utilization rate of ozone is improved, so that the present invention has high efficiency and convenient operation. And economical and practical features.

The technical solution adopted by the present invention to solve the technical problem is: a CoSD reaction tower for the advanced treatment of coal chemical wastewater according to the present invention, comprising:

Tower body;

Ozone tube, one end of the ozone tube communicates with the bottom of the tower body;

A feed pipe, the feed pipe is located on a side away from the tower body and the opening at the bottom of the feed pipe communicates with the outer wall of the ozone pipe;

An ozone booster pump, the ozone booster pump is located on a side away from the tower body, and the No. 1 air inlet of the ozone booster pump communicates with the other end of the ozone tube;

An ozone generator, the ozone generator is located on a side close to the ozone booster pump, and the No. 3 gas outlet of the ozone generator communicates with the No. 1 air inlet of the ozone booster pump;

A feeding unit, which is located in the feeding pipe, is used to control the feeding of the catalyst.

Preferably, the feed 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, one end of the electric push rod is fixedly connected with the piston, and the piston is slidably connected with the inner wall of the feed pipe, and the one-way valve is located at the end of the feed pipe. The lower end is open, and the feed port communicates with the upper outer wall of the feed pipe.

Preferably, the feed unit includes an air pump, a feed cover, and a one-way valve; the air pump is located between the tower body and the feed pipe, and the second outlet pipe of the air pump is connected to the feed pipe The side wall is in communication, and the feeding cap is connected with the top of the feeding pipe for controlling gas circulation in the air pipe.

Preferably, one end of the air pipe is communicated with the side wall of the feed pipe, the other end of the air pipe is connected with the ozone pipe, a control valve is arranged in the air pipe, and an ozone detector is installed on the inner wall of the feed pipe .

Preferably, the No. 2 gas outlet of the gas pump communicates with the outer wall of the tower through a gas outlet pipe, and a vacuum relief valve is installed on the feed cover.

Preferably, an air intake pipe is provided at the center of the bottom surface inside the tower, and the air intake pipe communicates with one end of the ozone pipe. A plurality of discharge pipes are fixedly connected, and the discharge pipe communicates with the inside of the intake pipe, and a filter screen is fixedly connected to the inner wall of the lower part of the intake pipe, and the filter screen is used to filter the catalyst to prevent the catalyst from being blocked The aeration tube.

Preferably, the center of the bottom end surface of the filter screen bulges downwards.

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

Preferably, the intake pipe includes a plurality of rotating pipes and a plurality of fixed pipes, the plurality of fixed pipes are fixedly connected by a plurality of U-shaped rods, the rotating pipe is located between the two fixed pipes, the The lower end surfaces of the rotating tube and the fixed tube are provided with an annular T-shaped groove, and the upper end surfaces of the rotating tube and the fixed tube are provided with an annular T-shaped block, and the annular T-shaped block and the adjacent annular T-shaped block Groove rotary seal connection.

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

The beneficial effects of the present invention are as follows:

1. The present invention ensures the sufficient mixing of ozone and ozone catalyst by mixing ozone and ozone catalyst into wastewater, improves the reaction efficiency of ozone and wastewater, and makes the present invention have the characteristics of high efficiency, convenient operation and economical and practical.

2. In the present invention, the ozone catalyst is discharged from the discharge port by the upward force of the pressurized ozone gas. The ozone catalyst will continue to move upward in the waste water under the action of the pressurized ozone gas. At the same time, the rotating pipe in the intake pipe rotates to drive the aeration pipe Rotating in the wastewater, the aeration tube will stir the wastewater when it rotates, driving the wastewater to move in the tower body, and the ozone bubbles generated by the aeration tube will slightly drive the movement of the ozone catalyst, so the ozone catalyst will break the ozone bubbles in the wastewater and make the ozone catalyst Mix evenly with ozone, increase the utilization rate of ozone, make ozone and wastewater react more fully.

3. In the present invention, the feed unit in the feed pipe controls the ozone catalyst to enter the ozone pipe and mix with the ozone, and at the same time further utilizes the utilization rate of the ozone gas to make the ozone push the ozone catalyst to be discharged from the feed pipe, reducing the additional power source .

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a perspective view of the present invention;

Fig. 2 is a sectional view of an embodiment in Fig. 1;

Fig. 3 is a sectional view of another embodiment in Fig. 1;

Fig. 4 is a partial enlarged view of place C in Fig. 2;

Fig. 5 is a partial sectional view at B-B place among Fig. 6;

Fig. 6 is a partial enlarged view of place A in Fig. 2;

In the figure: 1. Tower body; 2. Ozone tube; 21. Ozone booster pump; 211. No. 1 gas outlet; 212. No. 1 air inlet; 22. Ozone generator; 221. No. 3 gas outlet; 3. Feed pipe; 31, feed unit; 311, motor; 312, electric push rod; 313, one-way valve; 314, feed port; 315, piston; 321, air pump; 322, feed cover; 323, ozone detection 324, vacuum relief valve; 325, No. 2 air inlet; 326, No. 2 air outlet; 327, 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-shaped block; 48, U-shaped bar; 49, annular T-shaped groove; 5, water inlet.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the following will further elaborate the present invention in combination with specific implementation methods.

As shown in Figure 1 to Figure 6;

Embodiment 1;

A CoSD reaction tower for advanced treatment of coal chemical wastewater, comprising:

tower body 1;

Ozone tube 2, one end of the ozone tube 2 communicates with the bottom of the tower body 1;

Feed pipe 3, the feed pipe 3 is located on the side away from the tower body 1 and the opening at the bottom of the feed pipe 3 communicates with the outer wall of the ozone pipe 2;

An ozone booster pump 21, the ozone booster pump 21 is located on a side away from the tower body 1, and the No. 1 air inlet 212 of the ozone booster pump 21 communicates with the other end of the ozone tube 2;

Ozone generator 22, described ozone generator 22 is positioned at the side close to described ozone booster pump 21, No. 3 gas outlet 221 of described ozone generator 22 and No. 1 air inlet of described ozone booster pump 21 212 connected;

The feeding unit 31, which is located in the feeding pipe 3, is used to control the feeding of the catalyst.

When working, ozone catalytic oxidation technology is used in the advanced treatment scheme of coal chemical industry wastewater in the prior art. Compared with ozone oxidation, ozone catalytic oxidation has better treatment effect, and it is the preferred technology in the advanced treatment of coal chemical industry wastewater. However, in the prior art, the ozone catalyst needs to be put into the side wall above the outer wall of the tower at one time before the ozone is introduced, and cannot be continuously added. 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 The distribution in the body is uneven, so 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 low ozone utilization rate, thus increasing the use cost and cost of ozone catalytic oxidation. Wastewater treatment time.

Therefore this work inventor feeds waste water in the tower body 1 from water inlet 5, then opens ozone generator 22 to provide ozone, and ozone enters ozone pipe 2 by ozone booster pump 21, and the ozone catalyst inside feed pipe 3 is in simultaneously Under the action of the feed unit 31, it enters the ozone pipe 2, and the ozone enters the 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 waste water, and the other part of the ozone circulates inside the inlet pipe 4 and flows from the The aeration pipe 41 is discharged, and the bubble diameter of the ozone in the waste water is too large, and the contact area with the water is very small. Break the ozone bubbles, increase the contact area between ozone and wastewater, and at the same time, the ozone catalyst catalyzes the reaction between ozone and wastewater, and when the ozone circulates inside the intake pipe 4, the ozone boosted by the ozone booster pump 21 drives the rotating pipe 44 The fan blade 46 fixed to the inner wall rotates, so that the fan blade 46 drives the rotating pipe 44 to make the aeration pipe 41 rotate in the waste water, so the aeration pipe can stir in the waste water, and the ozone gas ejected from the aeration pipe 41 can also Drive the movement of the waste water in the tower body 1, so the continuous movement of the waste water in the tower body 1 will drive the ozone catalyst discharged from the discharge pipe 43 to move together, so the ozone catalyst is constantly moving in the waste water, so that the contact area between the ozone and the ozone catalyst is larger, Further improve the effect of wastewater treatment.

The present invention controls the feeding speed of the ozone catalyst by controlling the feeding unit 31, so that the ozone and the ozone catalyst enter the waste water together, and at the same time, the pressurized ozone gas drives the rotating tube 44 to rotate, so that the fixed connection on the rotating tube 44 The aeration pipe 41 stirs in the waste water to ensure sufficient contact between the ozone and the ozone catalyst, so that the ozone and the waste water fully react.

In this embodiment, referring to the accompanying drawing 2 of the specification, the feeding unit 31 includes a motor 311, an electric push rod 312, a one-way valve 313, a feeding port 314, and a piston 315. The motor 311 is located in the feeding pipe 3 At the top, the motor 311 is used to drive the electric push rod 312, the electric push rod 312 is located inside the feed pipe 3, and one end of the electric push rod 312 is fixedly connected with the piston 315, and the piston 315 315 is slidingly connected with the inner wall of the feed pipe 3 , the one-way valve 313 is located at the lower end opening of the feed pipe 3 , and the feed port 314 communicates with the upper outer wall of the feed pipe 3 .

When working, the staff turns on the motor 311 to make the piston 315 move upwards and leak out of the feed port 314, the ozone catalyst enters from the feed port 314, and then the piston 315 is moved downwards, and the air pressure in the feed pipe 3 is changed by the piston 315 so that The ozone catalyst enters the ozone pipe 2 through the one-way valve 313 in the opening of the lower end of the feed port 314, 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 wastewater can be fully mixed when reacting. Reaction, increase the utilization rate of ozone.

Embodiment 2;

The difference with embodiment 1 is:

In this embodiment, referring to the accompanying drawing 3 of the specification, the feed unit 31 includes 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 No. 2 air inlet 325 of the air pump 321 communicates with the side wall of the feed pipe 3 , and the feed cover 322 is connected with the top of the feed pipe 3 for controlling the gas circulation in the air pipe 33 .

During work, 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, opens the air pump 321, and makes the air pump 321 pass through the No. 2 air inlet 325 to Add gas in the feed pipe 3 to increase the internal pressure of the feed pipe 3, so that the ozone catalyst passes through the one-way valve 313 and enters the ozone pipe 2, and the ozone catalyst is brought into the tower body 1 by the pressurized ozone gas to react with the waste water. When ozone reacts with wastewater, it can fully mix and react, increasing the utilization rate of ozone.

Embodiment 3;

The difference with embodiment 2 is:

In this embodiment, referring to the accompanying drawing 3 of the specification, one end of the air pipe 33 is communicated with the side wall of the feed pipe 3, and the other end of the air pipe 33 is communicated with the ozone pipe 2, and the air pipe 33 is provided with a control A valve 331, an ozone detector 323 is installed on the inner wall of the feed pipe 3.

During work, 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, and then opens the control valve 331 in the air pipe 33 to make the ozone pipe 2 A part of the ozone enters the inside of the feed pipe 3 from the gas pipe 33 to increase the pressure inside the feed pipe 3, so that the ozone catalyst passes through the one-way valve 313 and enters the ozone pipe 2, and the ozone catalyst is brought into the tower by the pressurized ozone gas. The body 1 reacts with wastewater; when the staff needs to add an ozone catalyst, close the control valve 331 in the air pipe 33, turn on 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 After the 323 detects that the ozone content is close to 0 or is harmless to the environment and the human body, the feed cover 322 can be opened, and the ozone catalyst can be replenished by pouring the ozone catalyst from the feed cover 322 into the feed pipe 3, which increases the utilization of ozone At the same time, the structure is simple and convenient, which improves the actual use of the machine.

In this embodiment, referring to the accompanying drawing 3 of the specification, the No. 2 air outlet 326 of the air pump 321 communicates with 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 .

When working, the staff directly discharges the ozone in the feed pipe 3 into the tower body 1 through the air pump 321 until the ozone detector 323 detects that the ozone content inside the feed pipe 3 approaches 0 or the ozone in the feed pipe 3 The content is harmless to the human body or the environment, which makes the ozone react with the wastewater and increases the utilization rate of the ozone; at the same time, after the ozone in the feed pipe 3 enters the tower body 1, the internal pressure of the feed pipe 3 decreases, so through the feed The vacuum pressure relief valve 324 installed on the cover 322 makes the pressure in the intake pipe 4 equal to the atmospheric pressure, and then the ozone catalyst can be replenished by opening the feeding cover 322, which increases the safety and actual use effect of the machine.

Embodiment 4;

The difference with embodiment 1 is:

In this embodiment, referring to the accompanying drawings 2 or 3 of the specification, an air inlet pipe 4 is provided at the center of the bottom surface inside the tower body 1, and the air inlet pipe 4 communicates with one end of the ozone pipe 2, and the outer wall of the air inlet pipe 4 A plurality of aeration pipes 41 are communicated, and the outer wall of the bottom of the air intake pipe 4 is fixedly connected with a plurality of discharge pipes 43, and the discharge pipe 43 communicates with the interior of the air intake pipe 4, and the inner wall of the lower part of the air intake pipe 4 A filter screen 42 is fixedly connected, and the filter screen 42 is used to filter the catalyst to prevent the catalyst from blocking the aeration pipe 41 .

During work, the air intake pipe 4 comprises an aeration pipe 41, a filter screen 42, and a discharge pipe 43. The central position of the bottom surface of the tower body 1 is provided with an air intake pipe 4. The air intake pipe 4 communicates with one end of the ozone pipe 2, and the outer wall of the air intake pipe 4 Connected with a plurality of aeration pipes 41, the outer wall of the bottom of the intake pipe 4 is fixedly connected with a plurality of discharge pipes 43, and the discharge pipe 43 communicates with the inside of the intake pipe 4, and the inner wall of the lower part of the intake pipe 4 is fixedly connected with a filter screen 42. Personnel discharge the ozone and the ozone catalyst from the ozone pipe 2 into the intake pipe 4, and the filter screen 42 in the intake pipe 4 prevents the ozone catalyst from passing through, so that it is discharged into the waste water from the discharge port, preventing the ozone catalyst from blocking the aeration pipe 41 , the ozone gas through the filter screen 42 moves to the top of the intake pipe 4, and is discharged into the waste water in the aeration pipe on the side wall of the air intake pipe 4, and the ozone gas that comes out through the aeration pipe stirs the water flow, ensuring the separation of ozone and waste water. fully responsive.

In this embodiment, referring to Fig. 6 of the specification, the center position of the bottom end surface of the filter 42 bulges downward.

During work, ozone drives the ozone catalyst to enter the intake pipe together, and the central position of the end face of the filter screen 42 bottom bulges downward. The middle part of the net 42 enters the fixed pipe 45 and the rotating pipe 44 to prevent the ozone catalyst from blocking the filter screen 42 and ensure the sufficient reaction of the ozone and waste water.

Embodiment 5;

The difference with embodiment 4 is:

In this embodiment, referring to the accompanying drawing 6 of the specification, the opening direction of the discharge pipe 43 is obliquely upward.

When working, 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 ozone and waste water adequate response.

In this embodiment, referring to the accompanying drawing 6 of the specification, the intake pipe 4 includes a plurality of rotating pipes 44 and a plurality of fixed pipes 45, and the plurality of fixed pipes 45 are fixedly connected by a plurality of U-shaped rods 48, and the rotating The pipe 44 is located between the two fixed pipes 45, the lower end surfaces of the rotating pipe 44 and the fixed pipe 45 are provided with an annular T-shaped groove 49, and the upper end surfaces of the rotating pipe 44 and the fixed pipe 45 are provided with An annular T-shaped block 47 is provided, and the annular T-shaped block 47 is in rotation and sealing connection with the adjacent said annular T-shaped groove 49 .

During work, the intake pipe 4 comprises 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 bar 48, an annular T-shaped groove 49, and a discharge pipe 43 The bottom is fixedly connected to the ground inside the tower body 1, and the staff is provided with 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 connected with the annular T-shaped groove 49 in a rotating and sealed manner, so that the sealing effect is achieved between the rotating pipe 44 and the fixed pipe 45 through the annular T-shaped block 47, preventing waste water from entering between the connecting surface of the rotating pipe 44 and the fixed pipe 45 The interior of the intake pipe 4 causes waste water to fall inside the intake pipe 4, reducing the movement speed of the ozone gas in the intake pipe 4. As time increases, the waste water entering the intake pipe 4 gradually increases and will block the inside of the intake pipe 4, making the ozone The gas cannot be discharged through the aeration pipe 41, so it is necessary to prevent the waste water intake pipe, so this structure improves the practicability of the equipment, and the staff connects a plurality of fixed pipes 45 through U-shaped rods 48, so that the gravity of the fixed pipes 45 generates The pressure effect of the pressure will not affect the rotating tube 44, thereby reducing the frictional force when the rotating rod 44 rotates, and improving the practicability of the device.

In this embodiment, referring to FIG. 6 of the specification, 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 .

During work, the intake pipe 4 comprises 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-shaped block 47, a U-shaped bar 48, and an annular T-shaped groove 49, The aeration pipe 41 is located on the outer wall of the rotating pipe 44, and the aeration pipe 41 communicates with the inside of the rotating pipe 44. The ozone entering the intake pipe 4 drives the fan blade 46 fixedly connected to the inner wall of the rotating pipe 44 to rotate, so that the rotating pipe 44 rotates. At the same time, the rotating tube 44 drives the aeration tube 41 to stir the wastewater, and the air bubbles produced by the aeration tube 41 can also have a certain disturbance to the wastewater, so that the ozone catalyst is constantly moving in the tower body 1, increasing the ozone catalyst in the tower body. The degree of mixing within 1 improves the utilization rate of ozone.

Claims (10)

1. A coal chemical industry advanced wastewater treatment CoSD reaction tower comprises:

a tower body (1);

one end of the ozone pipe (2) is communicated with the bottom of the tower body (1);

the feeding pipe (3) is positioned on one side far away from the tower body (1), and an opening in the bottom of the feeding pipe (3) is communicated with the outer wall of the ozone pipe (2);

the ozone booster pump (21) is positioned on one side far away from the tower body (1), and a first air inlet (212) of the ozone booster pump (21) is communicated with the other end of the ozone pipe (2);

the ozone generator (22) is positioned at one side close to the ozone booster pump (21), and a third air outlet (221) of the ozone generator (22) is communicated with a first air inlet (212) of the ozone booster pump (21);

it is characterized by also comprising:

a feed unit (31), the feed unit (31) being located within the feed pipe (3) for controlling the feeding of ozone catalyst.

2. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 1, characterized in that: feed unit (31) includes motor (311), electric putter (312), check valve (313), feed inlet (314), piston (315), motor (311) are located inlet pipe (3) top, motor (311) are used for the drive electric putter (312), electric putter (312) are located inside inlet pipe (3), the one end of electric putter (312) has linked firmly piston (315), piston (315) with inlet pipe (3) inner wall sliding connection, check valve (313) are located the lower extreme opening of inlet pipe (3), feed inlet (314) with inlet pipe (3) upper portion outer wall intercommunication.

3. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 1, characterized in that: the feeding unit (31) comprises an air pump (321), a feeding cover (322) and a one-way valve (313); air pump (321) are located tower body (1) with between inlet pipe (3) just No. two air inlets (325) of air pump (321) with inlet pipe (3) lateral wall intercommunication, feeding lid (322) with inlet pipe (3) top is connected, is used for control gaseous circulation in trachea (33).

4. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 3, characterized in that: the lateral wall intercommunication of inlet pipe (3) has the one end of trachea (33), the other end of trachea (33) with ozone pipe (2) intercommunication, be equipped with control valve (331) in trachea (33), ozone detector (323) are installed to inlet pipe (3) inner wall.

5. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 4, characterized in that: no. two gas outlets (326) of air pump (321) with tower body (1) outer wall passes through outlet duct (327) intercommunication, install vacuum relief valve (324) on feeding lid (322).

6. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 4, characterized in that: tower body (1) inside bottom surface central point puts and is equipped with intake pipe (4), intake pipe (4) with the one end intercommunication of ozone pipe (2), intake pipe (4) outer wall intercommunication has a plurality of aeration pipe (41), the outer wall of intake pipe (4) bottom links firmly a plurality of row and expects pipe (43), just arrange material pipe (43) with intake pipe (4) inside intercommunication, intake pipe (4) lower part's inner wall has linked firmly filter screen (42), filter screen (42) are used for filtering the catalyst, prevent the catalyst blocks up aeration pipe (41).

7. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 6, characterized in that: the center of the end face of the bottom of the filter screen (42) is bulged downwards.

8. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 6 or 7, characterized in that: the opening direction of the discharge pipe (43) is inclined upwards.

9. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 6, characterized in that: intake pipe (4) are gone up including a plurality of rotating tubes (44) and a plurality of fixed pipe (45), and are a plurality of fixed pipe (45) link firmly through a plurality of U type poles (48), rotating tube (44) are located between two fixed pipe (45), rotating tube (44) with the lower terminal surface of fixed pipe (45) is equipped with annular T type groove (49), rotating tube (44) with the up end of fixed pipe (45) is equipped with annular T type piece (47), annular T type piece (47) and close annular T type groove (49) rotate sealing connection.

10. The coal chemical industry wastewater advanced treatment CoSD reaction tower according to claim 9, wherein: the inner wall of the rotating pipe (44) is fixedly connected with a plurality of fan blades (46), and the aeration pipe (46) is positioned on the outer wall of the rotating pipe (44).

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