Acid wastewater treatment equipment based on disinfectant production

Abstract

The invention belongs to the field of wastewater treatment, and provides acid wastewater treatment equipment based on disinfectant production, the acid wastewater treatment equipment comprises a neutralization box, a spherical premixing cavity and a reaction cavity communicated with the premixing cavity are formed in the neutralization box, the reaction cavity is located below the premixing cavity, a discharge pipe communicated with the reaction cavity is installed on the side face of the neutralization box, and a discharge pipe is installed on the side face of the neutralization box. A feeding mechanism is mounted at the top of the neutralization box, one end of the feeding mechanism extends to the inner top of the premixing cavity, and the feeding mechanism is used for spraying wastewater into the premixing cavity. A neutralizing agent is blown into the premixing cavity from bottom to top through the blowing pipe, meanwhile, waste water is sprayed into the premixing cavity from top to bottom through the feeding mechanism, the waste water makes full contact with the neutralizing agent, meanwhile, the neutralizing agent collides with the waste water, the caked neutralizing agent can be crashed, generated CaSOs can rapidly fall off under the impact of follow-up water flow, and waste water is recycled. The subsequent neutralizer is not wrapped by CaSOs, so that the waste of the neutralizer is avoided.

Description

Technical Field

[0001] The invention belongs to the field of wastewater treatment, and in particular relates to acidic wastewater treatment equipment based on disinfectant production. Background Art

[0002] The acidic wastewater (pH < 6) generated during the disinfectant production process is a high-concentration, difficult-to-degrade industrial wastewater. It usually contains high-concentration inorganic acids (such as hydrochloric acid and sulfuric acid), organic acids, residual disinfectants (such as hypochlorous acid and peracetic acid) and by-products (such as halogenated organic matter). It is highly corrosive, high in salt content and biologically toxic, and requires targeted treatment.

[0003] Currently, acidic wastewater treatment primarily involves a multi-step, process-based approach using various devices, including neutralization, sedimentation, and filtration. When neutralizing wastewater, limestone powder (CaCO3) is typically used to neutralize acidic ions.

[0004] The existing neutralization process is to first pass acidic wastewater into the box, then add limestone powder into the box, and then stir to mix the wastewater and limestone powder evenly, so that CaCO3 reacts with acidic ions to form CaSO4, which will settle to the bottom of the box, thereby removing the acidic ions in the wastewater.

[0005] Since limestone powder is easy to aggregate and clump, after adding limestone powder to wastewater at one time or continuously, the agglomerated limestone powder will be suspended in the wastewater. The limestone powder on the outside will react with the acidic ions first. Since the limestone powder and the acidic ions react to generate CaSO4 precipitate, the unreacted CaCO3 inside the agglomerate will be wrapped by the generated CaSO4 and then precipitate, resulting in increased limestone powder consumption and waste of limestone powder. Summary of the Invention

[0006] The purpose of the present invention is to provide an acidic wastewater treatment equipment based on disinfectant production, aiming to solve the technical problem in the prior art that limestone powder is easy to aggregate and clump, resulting in waste of limestone powder.

[0007] The present invention is achieved as follows: an acidic wastewater treatment device based on disinfectant production includes a neutralization box, wherein a spherical premixing chamber and a reaction chamber connected to the premixing chamber are provided inside the neutralization box, and the reaction chamber is located below the premixing chamber. A discharge pipe connected to the reaction chamber is installed on the side of the neutralization box, and a feeding mechanism is installed on the top of the neutralization box. One end of the feeding mechanism extends to the inner top of the premixing chamber, and the feeding mechanism is used to spray wastewater into the premixing chamber.

[0008] Inside the premixing chamber, a blowing pipe is fixedly connected through a first fixing frame. One end of the blowing pipe extending out of the neutralizing box is fixedly connected to a first blower, and the first blower is fixedly installed on the neutralizing box. A storage cavity is also formed inside the neutralizing box. A feeding pipe is communicated with the bottom of the storage cavity. One end of the feeding pipe is communicated with the blowing pipe. The feeding pipe is arranged obliquely downward. A feeding port communicated with the storage cavity is arranged on the neutralizing box, and a neutralizing agent is placed in the storage cavity.

[0009] Further technical solution: The feeding mechanism includes a feeding pipe fixedly installed on the neutralizing box. One end of the feeding pipe is connected with a rotary joint. One end of the rotary joint is connected with a rotating pipe. The rotating pipe is rotatably installed on the neutralizing box. One end of the rotating pipe extending into the premixing chamber is connected with a sprinkling cover. A plurality of uniformly distributed first guiding inclined strips are fixedly connected to the inner side wall of the sprinkling cover. The first guiding inclined strips are inclined with respect to the vertical plane.

[0010] The feeding mechanism further includes a driving mechanism for driving the rotating pipe to rotate.

[0011] Further technical solution: The feeding mechanism further includes an exhaust pipe fixedly installed inside the feeding pipe. The top end of the exhaust pipe extends out of the feeding pipe. The bottom end of the exhaust pipe extends into the sprinkling cover and is fixedly connected with an air-gathering cover. A plurality of air inlets communicated with the exhaust pipe are formed on the air-gathering cover.

[0012] Further technical solution: The driving mechanism includes a first motor fixedly installed on the neutralizing box. A first transmission pair is connected between the first motor and the rotating pipe.

[0013] Further technical solution: A wind guiding component is further installed inside the neutralizing box. The wind guiding component includes an installation cavity formed inside the neutralizing box. A second blower is fixedly installed inside the installation cavity. One end of the second blower is communicated with a blowing air pipe. One end of the blowing air pipe is communicated with the inside of the feeding pipe. A plurality of air inlet holes communicated with the installation cavity are formed on the side surface of the neutralizing box.

[0014] Further technical solution: A spraying mechanism is installed at one end of the blowing pipe located inside the premixing chamber. The spraying mechanism includes a spraying funnel rotatably installed at the end of the blowing pipe. The spraying funnel is in a funnel shape. A plurality of obliquely arranged second guiding inclined strips are fixedly connected to the inner side wall of the spraying funnel. A second fixing frame is fixedly connected inside the blowing pipe. A connecting rod is slidably installed on the second fixing frame. The top end of the connecting rod is fixedly connected with a blocking ball. Initially, the blocking ball is tangent to the spraying funnel, and a plurality of the second guiding inclined strips are all below the blocking ball. The bottom end of the connecting rod is fixedly connected with a stop head for preventing the connecting rod from falling off the second fixing frame.

[0015] Further technical solution: An anti-backflow mechanism is also installed inside the blowing pipe. The anti-backflow mechanism includes a wind-gathering cover fixedly installed inside the blowing pipe. A connecting pipe is communicated with the top of the wind-gathering cover. A spherical head is communicated with the top of the connecting pipe. A plurality of air outlet holes are formed in the spherical head. A sliding cylinder is slidably installed on the connecting pipe. The outer diameter of the sliding cylinder is the same as the inner diameter of the blowing pipe. A blocking block is fixedly connected to the inner side surface of the sliding cylinder. A conical surface is formed inside the blocking block. Initially, the conical surface is tangent to the spherical head, and a plurality of the air outlet holes are all located below the blocking block.

[0016] Further technical solution: A stirring mechanism is also installed on the neutralization tank. The stirring mechanism includes two stirring rods rotatably installed inside the reaction cavity. A plurality of stirring plates are fixedly connected to both of the stirring rods. A second transmission pair is connected between the ends of the two stirring rods extending out of the neutralization tank. A second motor is fixedly installed on the side surface of the neutralization tank. The output shaft of the second motor is fixedly connected to one end of a stirring rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, the neutralizing agent is blown from the bottom to the top into the premixing cavity through the blowing pipe, and at the same time, the waste water is sprayed into the premixing cavity from the top to the bottom through the feeding mechanism, so that the waste water and the neutralizing agent are fully contacted. At the same time, the neutralizing agent and the waste water collide, and the agglomerated neutralizing agent can be broken, and under the impact of the subsequent water flow, the generated CaSO4 will quickly fall, and the subsequent neutralizing agent will not be wrapped by CaSO4, avoiding the waste of the neutralizing agent. At the same time, in the present invention, the waste water and the neutralizing agent are fully mixed in the pre-mixing stage. Compared with the prior art in which the two materials are added successively and the neutralizing agent slowly penetrates into the waste water, the reaction efficiency of the present invention is higher and the neutralization effect is better;

[0019] 2. In the present invention, by setting the rotating pipe and the sprinkling cover, and arranging an air-gathering cover inside the sprinkling cover, the rotating sprinkling cover can make the waste water form a water curtain under the action of centrifugal force, and a gap is left between the sprinkling cover and the air-gathering cover. The waste water is discharged from the gap, which can reduce the drainage volume while making the water curtain formed by the waste water thinner. After meeting the neutralizing agent, the mixing ratio of the waste water and the neutralizing agent can be more appropriate, improving the neutralization effect and not wasting the neutralizing agent. At the same time, the gas discharged from the blowing pipe and the gas generated by the reaction enter the exhaust pipe from the air-gathering cover and are discharged, avoiding the situation that the gas destroys the water curtain and then reduces the mixing effect of the neutralizing agent and the waste water;

[0020] 3. In the present invention, by providing an air-sliding component, air is introduced into the feeding pipe by a second blower, so that the space between material particles is filled with air, forming a fluidized state. After fluidization, the neutralizer naturally slides and flows downward in the inclined feeding pipe. After the neutralizer flows into the blowing pipe, it is blown out from the top by a relatively large air flow in the blowing pipe, thus avoiding the situation of less feeding amount per unit time caused by poor fluidity of limestone powder.

[0021] 4. In the present invention, by providing a spraying mechanism, when the air flow blows out of the spraying funnel, the air flow drives the spraying funnel to rotate. Under the action of centrifugal force, the neutralizer is sprinkled over a larger area and more dispersed, reducing the agglomeration of the neutralizer. At the same time, after the air flow blows onto the blocking ball, the air flow flows along the surface of the blocking ball and finally discharges from the air-gathering hood and the exhaust pipe above the blocking ball. Under the action of centrifugal force, the neutralizer will be thrown by the spraying funnel onto the side wall of the premixing chamber, avoiding the influence of the air flow on the mixing of wastewater and the neutralizer. After the first blower stops working, the blocking ball will fall onto the spraying funnel to block the blowing pipe, preventing the residual wastewater in the feeding pipe from dropping into the blowing pipe and then damaging the first blower.

[0022] 5. In the present invention, by providing an anti-backflow mechanism, when the blowing pipe is ventilated, the air flow jacks up the blocking block and the sliding cylinder, creating a gap between the blocking block and the spherical head, and the air flow flows out from the gap. After the first blower stops working, under the action of gravity, the sliding cylinder drops, and the conical surface is tangent to the spherical head again, preventing the neutralizer from falling below the air-gathering hood, thus protecting the first blower. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall internal structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the installation structure of the spraying mechanism and the anti-backflow mechanism in the present invention.

[0026] Figure 4 In the present invention Figure 3 It is an enlarged schematic diagram at position A.

[0027] Figure 5 It is a schematic diagram of the structure of the spraying funnel in the present invention.

[0028] Figure 6 In the present invention Figure 3 It is an enlarged schematic diagram at position B.

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the feeding mechanism in the present invention.

[0030] In the attached drawings: 1, neutralization tank; 2, feeding mechanism; 21, feeding pipe; 22, exhaust pipe; 23, rotary joint; 24, rotating pipe; 25, first transmission pair; 26, sprinkling cover; 27, first motor; 28, air gathering cover; 29, first guiding inclined strip; 3, first blower; 4, blowing pipe; 5, feeding port; 6, anti-backflow mechanism; 61, funnel surface; 62, blocking block; 63, spherical head; 64, conical surface; 65, air outlet hole; 66, sliding cylinder; 67, connecting pipe; 68, air gathering hood; 7, spraying mechanism; 71, blocking ball; 72, second guiding inclined strip; 73, spraying funnel; 74, connecting rod; 75, second fixing frame; 76, stop head; 8, air chute assembly; 81, second blower; 82, blowing air pipe; 83, air inlet hole; 84, installation cavity; 9, stirring mechanism; 91, second motor; 92, stirring rod; 93, stirring plate; 94, second transmission pair; 10, premixing cavity; 11, first fixing frame; 12, storage cavity; 13, blanking pipe; 14, reaction cavity; 15, discharging pipe. Detailed implementation manners

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

[0032] The following describes the specific implementation of the present invention in detail in conjunction with specific embodiments.

[0033] As Figures 1-7 shown, an acidic wastewater treatment device based on disinfectant production provided by the present invention includes a neutralization tank 1. A spherical premixing cavity 10 is opened inside the neutralization tank 1, and a reaction cavity 14 communicated with the premixing cavity 10. The reaction cavity 14 is located below the premixing cavity 10. A discharging pipe 15 communicated with the reaction cavity 14 is installed on the side of the neutralization tank 1. A feeding mechanism 2 is installed on the top of the neutralization tank 1. One end of the feeding mechanism 2 extends to the inner top of the premixing cavity 10. The feeding mechanism 2 is used to spray wastewater into the premixing cavity 10.

[0034] A blowing pipe 4 is fixedly connected inside the premixing cavity 10 through a first fixing frame 11. One end of the blowing pipe 4 extending out of the neutralization tank 1 is fixedly connected to a first blower 3. The first blower 3 is fixedly installed on the neutralization tank 1. A storage cavity 12 is also opened inside the neutralization tank 1. A blanking pipe 13 is communicated with the bottom of the storage cavity 12. One end of the blanking pipe 13 is communicated with the blowing pipe 4. The blanking pipe 13 is arranged obliquely downward. A feeding port 5 communicated with the storage cavity 12 is arranged on the neutralization tank 1. A neutralizing agent (limestone powder) is placed in the storage cavity 12.

[0035] Specifically, the neutralizing agent (limestone powder) is added into the storage chamber 12 through the feeding port 5. First, the first blower 3 is started. The first blower 3 extracts air and sends it into the premixing chamber 10 through the blowing pipe 4. Under negative pressure, the neutralizing agent in the storage chamber 12 is sucked into the blowing pipe 4. Under the push of the air flow, the neutralizing agent is sprayed into the premixing chamber 10. After the neutralizing agent is sprayed into the premixing chamber 10, the wastewater is sprayed into the premixing chamber 10 from the feeding mechanism 2 to form a water curtain. The wastewater will flow down along the side wall of the premixing chamber 10, and the neutralizing agent will be evenly sprayed onto the side wall of the premixing chamber 10. The wastewater and the neutralizing agent come into contact, and then the neutralizing agent dissolves into the wastewater and flows into the reaction chamber 14 together for full reaction, so that the wastewater and the neutralizing agent are fully mixed. The impact between the neutralizing agent and the water curtain can break up the agglomerated neutralizing agent. Under the impact of the subsequent water flow, the generated CaSO4 will quickly fall into the reaction chamber 14, and the subsequent neutralizing agent will not be wrapped by CaSO4, avoiding the waste of the neutralizing agent. At the same time, compared with the prior art in which two materials are added successively and the neutralizing agent slowly penetrates into the wastewater, in the present invention, the wastewater and the neutralizing agent are fully mixed in the premixing stage, resulting in higher reaction efficiency and better neutralization effect.

[0036] Since the wastewater and the neutralizing agent are evenly mixed in the premixing stage, if the subsequent structure is reasonably designed, this device can be used to continuously treat wastewater, and full reaction can be carried out in the subsequent wastewater transportation stage without affecting the subsequent treatment process.

[0037] An acidic wastewater treatment device based on disinfectant production provided by the present invention. In this embodiment, the feeding mechanism 2 includes a feeding pipe 21 fixedly installed on the neutralizing tank 1. One end of the feeding pipe 21 is connected to a rotary joint 23. One end of the rotary joint 23 is connected to a rotating pipe 24. The rotating pipe 24 is rotatably installed on the neutralizing tank 1. One end of the rotating pipe 24 extending into the premixing chamber 10 is connected to a spraying cover 26. A plurality of uniformly distributed first guiding inclined strips 29 are fixedly connected to the inner side wall of the spraying cover 26. The first guiding inclined strips 29 are inclined with respect to the vertical plane.

[0038] The feeding mechanism 2 further includes a driving mechanism for driving the rotating pipe 24 to rotate.

[0039] Specifically, the wastewater surges into the rotating pipe 24 from the feeding pipe 21 and sprays out from the spraying cover 26. At the same time, the driving mechanism drives the rotating pipe 24 and the spraying cover 26 to rotate. The outer wastewater flows out along the inclined water channels between the first guiding inclined strips 29 and is thrown to the side wall of the premixing chamber 10 by centrifugal force, so that the wastewater is dispersed. At the same time, due to the cohesion between liquid molecules, the outer wastewater will pull the central wastewater to move outward, so that the wastewater is sprayed out in the form of a water curtain. Then the neutralizing agent sprayed from the blowing pipe 4 meets and merges with the wastewater.

[0040] An acidic wastewater treatment device based on disinfectant production provided by the present invention. Since the reaction between limestone powder and ions in the wastewater will generate gas, and the gas ejected from the blowing pipe 4 also needs to be discharged. In order not to affect the formation of the water curtain, in this embodiment, the feeding mechanism 2 further includes an exhaust pipe 22. The exhaust pipe 22 is fixedly installed inside the feeding pipe 21. The top end of the exhaust pipe 22 extends out of the feeding pipe 21. The bottom end of the exhaust pipe 22 extends into the inside of the sprinkling cover 26 and is fixedly connected with an air-gathering cover 28. A plurality of air inlets communicating with the exhaust pipe 22 are opened on the air-gathering cover 28.

[0041] Specifically, the outer shape of the air-gathering cover 28 is similar to that of the sprinkling cover 26. There is a gap between the sprinkling cover 26 and the air-gathering cover 28. The wastewater is discharged from the gap. While reducing the drainage volume, it also makes the water curtain thinner. After meeting the neutralizing agent, it can make the mixing ratio of the wastewater and the neutralizing agent more appropriate, improve the neutralization effect, and do not waste the neutralizing agent. At the same time, the gas discharged from the blowing pipe 4 and the gas generated by the reaction enter the exhaust pipe 22 from the air-gathering cover 28 and are discharged, avoiding the situation that the gas destroys the water curtain and then reduces the mixing effect of the neutralizing agent and the wastewater.

[0042] An acidic wastewater treatment device based on disinfectant production provided by the present invention. In this embodiment, the driving mechanism includes a first motor 27 fixedly installed on the neutralization tank 1. A first transmission pair 25 is connected between the first motor 27 and the rotating pipe 24.

[0043] An acidic wastewater treatment device based on disinfectant production provided by the present invention. Since the fluidity of the limestone powder is poor, the amount of limestone powder sucked by the negative pressure in the blowing pipe 4 is less than the amount of air generating the negative pressure, so that the amount of wastewater introduced each time needs to be controlled within a range adapted to the amount of the neutralizing agent. Therefore, the feeding efficiency is reduced and the neutralization time is prolonged. To solve this problem, in this embodiment, an air guiding component 8 is further installed in the neutralization tank 1. The air guiding component 8 includes an installation cavity 84 opened in the neutralization tank 1. A second blower 81 is fixedly installed inside the installation cavity 84. One end of the second blower 81 is communicated with a blowing air pipe 82. One end of the blowing air pipe 82 is communicated with the inside of the feeding pipe 13. A plurality of air inlet holes 83 communicating with the installation cavity 84 are opened on the side surface of the neutralization tank 1.

[0044] Specifically, one end of the blowing pipe 82 faces the premixing chamber 10. The second blower 81 is started. The second blower 81 extracts the outside air and passes it into the feeding pipe 13 through the blowing pipe 82, so that the space between the material particles is filled with air, forming a fluidized state (similar to the fluidity of liquid). The fluidized neutralizer slides down naturally by gravity in the inclined feeding pipe 13. After the neutralizer flows into the blowing pipe 4, it is blown out from the top by the larger air flow in the blowing pipe 4. This structure can greatly improve the feeding efficiency.

[0045] For an acidic wastewater treatment device based on disinfectant production provided by the present invention, in order to make the neutralizer distribute more evenly after being ejected from the blowing pipe 4 and improve the mixing effect, in this embodiment, a spraying mechanism 7 is installed at one end of the blowing pipe 4 located in the premixing chamber 10. The spraying mechanism 7 includes a spraying funnel 73 rotatably installed at the end of the blowing pipe 4. The spraying funnel 73 is in a funnel shape. A plurality of obliquely arranged second guiding inclined strips 72 are fixedly connected to the inner side wall of the spraying funnel 73. A second fixing frame 75 is fixedly connected inside the blowing pipe 4. A connecting rod 74 is slidably installed on the second fixing frame 75. The top end of the connecting rod 74 is fixedly connected with a blocking ball 71. Initially, the blocking ball 71 is tangent to the spraying funnel 73, and all the plurality of second guiding inclined strips 72 are located below the blocking ball 71. The blocking ball 71 can seal the spraying funnel 73 to prevent the wastewater from splashing into the inside of the blowing pipe 4. The bottom end of the connecting rod 74 is fixedly connected with a stop head 76, and the stop head 76 is used to prevent the connecting rod 74 from falling off the second fixing frame 75.

[0046] Specifically, the second guiding inclined strips 72 are inclined with respect to the vertical plane, so that a plurality of inclined air ducts can be formed. When the air flow passes through the inclined air ducts, a lateral force can be given to the air ducts, so that the air flow drives the spraying funnel 73 to rotate. Under the action of centrifugal force, the throwing area of the neutralizer is larger, and it is more dispersed. Finally, the wastewater and the neutralizer meet on the side wall of the premixing chamber 10 and flow into the reaction chamber 14 together;

[0047] The bottom end of the stop head 76 is set to be conical. During the process of the air flow carrying the neutralizer rising, the conical stop head 76 can separate the air flow in the middle from the neutralizer, so that the neutralizer is dispersed outward, so as to be diffused outward from the spraying funnel 73 subsequently, improving the diffusion range of the neutralizer;

[0048] At the same time, after the airflow hits the blocking ball 71, the blocking ball 71 can float, thereby forming a gap between the blocking ball 71 and the spray funnel 73. The airflow and neutralizer are sprayed out from the gap. According to the Coanda effect, the airflow flows along the surface of the blocking ball 71 and is eventually discharged from the air collection hood 28 and exhaust pipe 22 above the blocking ball 71. Under the action of centrifugal force, the neutralizer is thrown by the spray funnel 73 to the side wall of the premixing chamber 10. At this time, the neutralizer and the airflow are separated, preventing the airflow from affecting the mixing of the wastewater and the neutralizer.

[0049] After the first blower 3 stops working, the blocking ball 71 will fall onto the spray funnel 73, blocking the blowing pipe 4, preventing the residual waste water in the feeding pipe 21 from falling into the blowing pipe 4 and then damaging the first blower 3.

[0050] The present invention provides an acid wastewater treatment equipment based on disinfectant production. After the first blower 3 stops working, a large amount of neutralizer still exists in the blowing pipe 4, which will fall into the inside of the blowing pipe 4 and may be sucked back into the first blower 3, causing damage to the first blower 3. Therefore, in this embodiment, the inside of the blowing pipe 4 is also equipped with an anti-backflow mechanism 6, and the anti-backflow mechanism 6 includes a wind collecting cover 68 fixedly installed inside the blowing pipe 4, and the top of the wind collecting cover 68 is connected to A connecting tube 67 is provided with a spherical head 63 at the top thereof, and a plurality of air outlet holes 65 are provided on the spherical head 63. A sliding cylinder 66 is slidably mounted on the connecting tube 67. The outer diameter of the sliding cylinder 66 is the same as the inner diameter of the blowing tube 4. A block 62 is fixedly connected to the inner side surface of the sliding cylinder 66. A conical surface 64 is provided inside the block 62. Initially, the conical surface 64 is tangent to the spherical head 63, and the plurality of air outlet holes 65 are all located below the block 62.

[0051] Specifically, when the blow tube 4 is ventilated, air flows into the sliding cylinder 66 through the air outlet 65. The airflow lifts the block 62 and the sliding cylinder 66, creating a gap between the block 62 and the spherical head 63. Air flows out from the gap. After the first blower 3 stops working, the sliding cylinder 66 falls under the action of gravity, and the conical surface 64 becomes tangent to the spherical head 63 again, preventing the neutralizer from falling under the wind collecting cover 68, thereby protecting the first blower 3. The neutralizer that falls on the sliding cylinder 66 will be blown out during the next ventilation.

[0052] A funnel surface 61 is provided on the top of the blocking block 62 so that the neutralizing agent can be dispersed and dropped, and blown out when ventilation is performed again, thereby preventing the neutralizing agent from remaining on the sliding cylinder 66 .

[0053] An acidic wastewater treatment device based on disinfectant production provided by the present invention. During the reaction of wastewater and neutralizing agent in the reaction chamber 14, in order to improve the neutralization effect of the wastewater, in this embodiment, a stirring mechanism 9 is further installed on the neutralization tank 1. The stirring mechanism 9 includes two stirring rods 92 rotatably installed inside the reaction chamber 14. A number of stirring plates 93 are fixedly connected to both of the two stirring rods 92. A second transmission pair 94 is connected between the ends of the two stirring rods 92 extending out of the neutralization tank 1. A second motor 91 is fixedly installed on the side of the neutralization tank 1. The output shaft of the second motor 91 is fixedly connected to one end of a stirring rod 92.

[0054] The second motor 91 drives one stirring rod 92 to rotate. This stirring rod 92 drives the other stirring rod 92 to rotate through the second transmission pair 94. The two stirring rods 92 stir the wastewater in the reaction chamber 14 through the stirring plates 93, thereby improving the mixing effect of the wastewater and the neutralizing agent and enhancing the neutralization effect of the wastewater.

[0055] Working principle:

[0056] The neutralizing agent (limestone powder) is added into the storage chamber 12 through the feeding port 5. First, start the first blower 3. The first blower 3 extracts air and sends it into the premixing chamber 10 through the blowing pipe 4. Then start the second blower 81. The second blower 81 blows air into the feeding pipe 13 through the blowing air pipe 82, making the space between the material particles filled with air and forming a fluidized state. The fluidized neutralizing agent naturally slides and flows down in the inclined feeding pipe 13. When the neutralizing agent flows into the blowing pipe 4, it is blown into the spraying funnel 73 by the air in the blowing pipe 4. The air flow blows up the blocking ball 71, and the air flow entrains the neutralizing agent to be discharged from the air duct. Since the air duct is inclined, when the air flow passes through the inclined air duct, it can give a lateral force to the air duct, thereby driving the spraying funnel 73 to rotate. Under the action of centrifugal force, the neutralizing agent is scattered and thrown out. After the neutralizing agent is sprayed into the premixing chamber 10, the wastewater surges into the rotating pipe 24 from the upper feeding pipe 21 and sprays out from the spraying cover 26. At the same time, the driving mechanism drives the rotating pipe 24 and the spraying cover 26 to rotate. The outer wastewater flows out along the inclined water channels between the first guiding inclined strips 29 and is thrown to the side wall of the premixing chamber 10 by centrifugal force, so that the wastewater is dispersed and sprayed out in the form of a water curtain. Then the neutralizing agent and the wastewater meet, the neutralizing agent dissolves into the wastewater, and they flow into the reaction chamber 14 together for full reaction, making the wastewater and the neutralizing agent fully mixed. The impact between the neutralizing agent and the water curtain can break up the agglomerated neutralizing agent, and under the impact of the subsequent water flow, the generated CaSO4 will quickly fall into the reaction chamber 14, and the subsequent neutralizing agent will not be wrapped by CaSO4, avoiding the waste of the neutralizing agent;

[0057] Inside the reaction chamber 14, the second motor 91 drives a stirring rod 92 to rotate. The stirring rod 92 drives another stirring rod 92 to rotate through the second transmission pair 94. The two stirring rods 92 stir the wastewater in the reaction chamber 14 through the stirring plates 93, thereby improving the mixing effect of the wastewater and the neutralizing agent and enhancing the neutralization effect of the wastewater.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0059] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An acidic wastewater treatment device based on disinfectant production, including a neutralization tank, characterized in that, A spherical premixing chamber and a reaction chamber communicating with the premixing chamber are provided inside the neutralization tank. The reaction chamber is located below the premixing chamber. A discharge pipe communicating with the reaction chamber is installed on the side of the neutralization tank. A feeding mechanism is installed on the top of the neutralization tank. One end of the feeding mechanism extends to the inner top of the premixing chamber. The feeding mechanism is used to spray wastewater into the premixing chamber. A blowing pipe is fixedly connected inside the premixing chamber. One end of the blowing pipe extending out of the neutralization tank is fixedly connected with a first blower. The first blower is fixedly installed on the neutralization tank. A storage chamber is also provided inside the neutralization tank. The bottom of the storage chamber communicates with a feeding pipe. One end of the feeding pipe is communicated with the blowing pipe. The feeding pipe is arranged obliquely downward.

2. The acid wastewater treatment equipment based on disinfectant production according to claim 1, characterized in that The feeding mechanism includes a feeding pipe fixedly installed on the neutralization tank. One end of the feeding pipe is connected with a rotary joint. One end of the rotary joint is connected with a rotating pipe. The rotating pipe is rotatably installed on the neutralization tank. One end of the rotating pipe extending into the premixing chamber is connected with a sprinkling cover. A plurality of uniformly distributed first guiding inclined strips are fixedly connected to the inner side wall of the sprinkling cover. The first guiding inclined strips are inclined relative to the vertical plane. The feeding mechanism further includes a driving mechanism for driving the rotating pipe to rotate.

3. The acid wastewater treatment equipment based on disinfectant production according to claim 2, characterized in that, The feeding mechanism further includes an exhaust pipe fixedly installed inside the feeding pipe. The top end of the exhaust pipe extends out of the feeding pipe. The bottom end of the exhaust pipe extends into the sprinkling cover and is fixedly connected with a gas gathering cover. A plurality of air inlets communicating with the exhaust pipe are provided on the gas gathering cover.

4. The acid wastewater treatment equipment based on disinfectant production according to claim 2, wherein The driving mechanism includes a first motor fixedly installed on the neutralization tank. A first transmission pair is connected between the first motor and the rotating pipe.

5. The acid wastewater treatment equipment based on disinfectant production according to claim 1, characterized in that An air flow component is also installed inside the neutralization tank. The air flow component includes an installation chamber provided inside the neutralization tank. A second blower is fixedly installed inside the installation chamber. One end of the second blower communicates with a blowing air duct. One end of the blowing air duct is communicated with the inside of the feeding pipe. A plurality of air inlet holes communicating with the installation chamber are provided on the side of the neutralization tank.

6. The acid wastewater treatment equipment based on disinfectant production according to claim 1, characterized in that, A spraying mechanism is installed at one end of the blowing pipe located inside the premixing chamber. The spraying mechanism includes a spraying funnel rotatably installed at the end of the blowing pipe. A plurality of inclined second guiding inclined strips are fixedly connected to the inner side wall of the spraying funnel. A second fixing frame is fixedly connected inside the blowing pipe. A connecting rod is slidably installed on the second fixing frame. The top end of the connecting rod is fixedly connected with a blocking ball. Initially, the blocking ball is tangent to the spraying funnel, and a plurality of the second guiding inclined strips are all located below the blocking ball.

7. The acid wastewater treatment equipment based on disinfectant production according to claim 1, characterized in that, An anti-backflow mechanism is also installed inside the blowing pipe. The anti-backflow mechanism includes a wind-gathering cover fixedly installed inside the blowing pipe. A connecting pipe is communicated with the top of the wind-gathering cover. A spherical head is communicated with the top of the connecting pipe. A plurality of air outlet holes are formed in the spherical head. A sliding cylinder is slidably installed on the connecting pipe. The outer diameter of the sliding cylinder is the same as the inner diameter of the blowing pipe. A blocking block is fixedly connected to the inner side surface of the sliding cylinder. A conical surface is formed inside the blocking block. Initially, the conical surface is tangent to the spherical head, and a plurality of the air outlet holes are all located below the blocking block.

8. The acid wastewater treatment equipment based on disinfectant production according to claim 1, wherein, A stirring mechanism is also installed on the neutralization tank. The stirring mechanism includes two stirring rods rotatably installed inside the reaction chamber. A plurality of stirring plates are fixedly connected to both of the two stirring rods. A second transmission pair is connected between the ends of the two stirring rods extending out of the neutralization tank. A second motor is fixedly installed on the side surface of the neutralization tank. The output shaft of the second motor is fixedly connected to one end of a stirring rod.

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