A chromic acid wastewater treatment machine

Abstract

The invention belongs to the technical field of chromic acid wastewater treatment, and specifically is a chromic acid wastewater treatment machine, comprising an electrolytic box, a dilute sulfuric acid treatment box is installed on the side of the electrolytic box, the dilute sulfuric acid treatment box comprises a cabinet and a rotating motor installed on one side of the dilute sulfuric acid treatment box, a flow equalizing plate is installed on the inner top of the cabinet, a rotating shaft is installed on the side of the rotating motor, the rotating shaft penetrates the dilute sulfuric acid treatment box and is connected with the flow equalizing plate, the flow equalizing plate is tilted, and is turned over by the flow equalizing plate, so that the flow equalizing plate originally flowing with chromic acid wastewater is turned over from the upper side to the lower side, and the liquid level of the dilute sulfuric acid in the cabinet is increased, so that the dilute sulfuric acid solution contacts the bottom of the flow equalizing plate at this time, and the flow equalizing plate is cleaned, and the chromic acid wastewater in the cabinet has no contact with the external environment throughout the whole process, and will not affect the external environment and staff.

Description

Technical Field

[0001] The invention belongs to the field of chromic acid wastewater treatment, in particular to a chromic acid wastewater treatment machine. Background Art

[0002] Chromic acid wastewater contains hexavalent chromium, a toxic heavy metal that is extremely harmful to the human body and the environment. Therefore, chromic acid wastewater must be treated to reduce its toxicity and reduce its impact on the environment. The purpose of the treatment is to reduce the hexavalent chromium to trivalent chromium, and then remove it from the wastewater by precipitation, adsorption, ion exchange or other methods. Existing chromic acid wastewater treatment machines usually use electrolysis to reduce the toxic hexavalent chromium to trivalent chromium, and then use dilute sulfuric acid solution to allow the toxic substances in the chromic acid wastewater to form a precipitate, and then follow the subsequent steps to complete the treatment of chromic acid wastewater step by step.

[0003] After the concentrated chromic acid wastewater is electrolyzed in the traditional chromic acid wastewater treatment machine, it will be transported to the inside of a container filled with a dilute sulfuric acid solution through a pipe. At this time, the toxic substances in the wastewater will form precipitates in the dilute sulfuric acid solution. In order to achieve a better precipitation effect, a flow equalizing plate is usually set inside the container of the dilute sulfuric acid solution to allow the electrolyzed chromic acid wastewater to be evenly distributed in the dilute sulfuric acid solution. However, because the chromic acid wastewater contains toxic substances, the side of the flow equalizing plate in the traditional treatment machine that has been in contact with the chromic acid wastewater for a long time is not easy to clean.

[0004] To this end, the present invention provides a chromic acid wastewater treatment machine. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a chromic acid wastewater treatment machine described in the present invention comprises an electrolytic box and an exhaust assembly installed above the electrolytic box, a dilute sulfuric acid treatment box is installed on the side of the electrolytic box, a cover plate is installed above the dilute sulfuric acid treatment box, a liquid inlet pipe is installed at the upper position of one side of the dilute sulfuric acid treatment box, a liquid outlet pipe is installed at the lower position of the other side of the dilute sulfuric acid treatment box, the liquid outlet pipe controls the liquid outlet through a solenoid valve, a pipeline assembly is installed above the dilute sulfuric acid treatment box, and the dilute sulfuric acid treatment box is connected with the electrolytic box through the pipeline assembly;

[0007] The dilute sulfuric acid treatment box includes a cabinet and a rotating motor installed on one side of the dilute sulfuric acid treatment box, a flow balancing plate is installed on the inner top of the cabinet, a rotating shaft is installed on the side of the rotating motor, the rotating shaft penetrates the dilute sulfuric acid treatment box and is connected to the flow balancing plate, the flow balancing plate is tilted, and the rectangular edges of the flow balancing plate are all rounded;

[0008] The pipeline assembly includes a first liquid inlet pipe and a second liquid inlet pipe that pass through the cover plate and are connected to the interior of the cabinet, the first liquid inlet pipe is connected to one end of the top of the cabinet, and the second liquid inlet pipe is connected to the other end of the top of the cabinet. The first liquid inlet pipe and the second liquid inlet pipe are used to transport the liquid inside the electrolytic box to the inside of the dilute sulfuric acid treatment box, and the first liquid inlet pipe and the second liquid inlet pipe are both controlled to open and close by an electromagnetic valve.

[0009] Preferably, the pipeline assembly includes a plurality of overflow pipes connected to the electrolytic box, a transverse pipe is installed below the plurality of overflow pipes, and a first liquid inlet pipe and a second liquid inlet pipe are installed at both ends of the transverse pipe respectively.

[0010] Preferably, a plurality of inclined through grooves are opened through the interior of the flow balancing plate, and the inclination direction of the plurality of inclined through grooves is consistent with the inclination direction of the flow balancing plate.

[0011] Preferably, rectangular grooves are provided on both upper and lower sides of the current equalizing plate, an inclined strip groove is provided through the width position of the rectangular groove, and a plurality of inclined grooves are provided through the length position of the rectangular groove.

[0012] Preferably, the inclination direction of the inclined strip groove is consistent with the inclination direction of the current equalizing plate, and the inclination direction of the plurality of inclined grooves is consistent with the inclination direction of the current equalizing plate.

[0013] Preferably, cleaning components are fixedly installed on both sides of the cabinet, and the horizontal height of the two cleaning components is lower than the horizontal height of the flow equalizing plate.

[0014] Preferably, the cleaning assembly includes a through strip groove opened on the side of the cabinet and a strip plate installed to cover the side of the through strip groove, and a U-shaped water pipe is movably installed inside the strip plate.

[0015] Preferably, a connecting pipe is installed at one end of the U-shaped water pipe, and one end of the connecting pipe extends to the outside of the strip plate to be connected with an external liquid supply device.

[0016] Preferably, both ends of the U-shaped water pipe are movably connected to the inside of the strip plate, the strip plate is opened toward the direction of the through-strip groove, and the U-shaped water pipe is movably installed inside the opening of the strip plate.

[0017] Preferably, a fixed motor is fixedly installed on the side of the strip plate, and the fixed motor is connected to the end of the U-shaped water pipe through a shaft. A plurality of spray valves are fixed on the outside of the vertical pipe of the U-shaped water pipe, and the plurality of spray valves are controlled by solenoid valves.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. A chromic acid wastewater treatment machine described in the present invention drives a rotating shaft and a flow equalizing plate to flip through the driving of a rotating motor, so that the flow equalizing plate originally flowing with chromic acid wastewater flips from the upper side to the lower side, and by raising the liquid level of dilute sulfuric acid inside the cabinet, the dilute sulfuric acid solution is allowed to contact the bottom of the flow equalizing plate at this time to clean the flow equalizing plate. The chromic acid wastewater inside the cabinet has no contact with the external environment throughout the whole process, and will not affect the external environment and staff, because the flow equalizing plate is originally set at an angle. After flipping, the flow equalizing plate is still set at an angle, and the chromic acid wastewater after electrolysis is introduced into the cabinet through the second liquid inlet pipe. At this time, the inclined state of the flow equalizing plate is beneficial to the faster flow of the chromic acid wastewater introduced at the second liquid inlet pipe, and the treatment of the chromic acid wastewater can continue while cleaning the flow equalizing plate.

[0020] 2. The chromic acid wastewater treatment machine described in the present invention has a plurality of inclined through grooves penetrating the flow equalizing plate and being arranged in an inclined manner. When the chromic acid wastewater is released onto the flow equalizing plate, the same inclined through groove cannot quickly release all the chromic acid wastewater on the flow equalizing plate. Therefore, the chromic acid wastewater will flow to the entire flow equalizing plate through the inclined setting of the flow equalizing plate. The chromic acid wastewater can be evenly distributed and released into the dilute sulfuric acid solution in the cabinet through the plurality of inclined through grooves. When the flowing chromic acid wastewater flows into the rectangular groove, the chromic acid wastewater within the length position of the rectangular groove will be released through the plurality of inclined grooves, and the remaining chromic acid wastewater will flow to the bottom position of the flow equalizing plate, that is, within a certain width position of the rectangular groove, and will be fully released into the cabinet through the inclined strip grooves arranged at this position. Through the arrangement of the rectangular groove and the inclined through groove, the chromic acid wastewater can be evenly distributed, and the chromic acid wastewater will not flow to the distance between the flow equalizing plate and the inner wall of the cabinet, thereby avoiding the chromic acid wastewater from contacting the inner wall of the cabinet and being easily affected by the dilute sulfuric acid solution.

[0021] 3. A chromic acid wastewater treatment machine described in the present invention is driven by a fixed motor to drive a U-shaped water pipe and multiple spray valves to rotate. The multiple spray valves spray dilute sulfuric acid solution to clean the underside of the flow equalizing plate. At this time, the spraying angle of the spray valve is obtuse to the angle of the inclined through-groove. Therefore, the dilute sulfuric acid solution sprayed by the spray valve will not fall from the inclined through-groove to the flow equalizing plate. At this time, when the spray valve rotates, the spray of the spray valve will not spray to the nearest inclined strip groove, thereby preventing the dilute sulfuric acid solution from falling onto the flow equalizing plate. By spraying dilute sulfuric acid to clean the flow equalizing plate, the amount of dilute sulfuric acid can be effectively saved. Moreover, after the dilute sulfuric acid falls into the cabinet, it can continue to react with the chromic acid wastewater without waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is an overall stereogram of the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the pipeline assembly in the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of the dilute sulfuric acid treatment box in the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the first state of the current equalizing plate in the present invention;

[0027] Figure 5 It is a three-dimensional schematic diagram of a rectangular groove in the present invention;

[0028] Figure 6 It is a three-dimensional schematic diagram of the second state of the current equalizing plate in the present invention;

[0029] Figure 7 It is a three-dimensional schematic diagram of the cleaning component in the present invention;

[0030] Figure 8 It is a three-dimensional schematic diagram of the spray valve in the present invention.

[0031] In the figure: 1. dilute sulfuric acid treatment box; 11. cabinet; 12. rotating motor; 121. rotating shaft; 13. flow equalizing plate; 131. inclined through groove; 132. rectangular groove; 1321. inclined strip groove; 1322. inclined groove; 14. cleaning component; 141. strip plate; 142. through strip groove; 143. U-shaped water pipe; 144. connecting pipe; 145. spray valve; 146. fixed motor; 2. cover plate; 3. liquid inlet pipe; 4. liquid outlet pipe; 5. electrolytic box; 6. exhaust assembly; 7. pipeline assembly; 71. transverse pipe; 72. overflow pipe; 73. first liquid inlet pipe; 74. second liquid inlet pipe. DETAILED DESCRIPTION

[0032] 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 conjunction with specific implementation methods.

[0033] Embodiment 1

[0034] like Figure 1-4 As shown, a chromic acid wastewater treatment machine according to an embodiment of the present invention comprises an electrolytic box 5 and an exhaust assembly 6 installed above the electrolytic box 5, a dilute sulfuric acid treatment box 1 is installed on the side of the electrolytic box 5, a cover plate 2 is installed above the dilute sulfuric acid treatment box 1, a liquid inlet pipe 3 is installed at the upper position of one side of the dilute sulfuric acid treatment box 1, a liquid outlet pipe 4 is installed at the lower position of the other side of the dilute sulfuric acid treatment box 1, the liquid outlet pipe 4 controls the liquid outlet through a solenoid valve, a pipeline assembly 7 is installed above the dilute sulfuric acid treatment box 1, and the dilute sulfuric acid treatment box 1 is connected to the electrolytic box 5 through the pipeline assembly 7;

[0035] The dilute sulfuric acid treatment box 1 includes a cabinet 11 and a rotating motor 12 installed on one side of the dilute sulfuric acid treatment box 1. A flow balancing plate 13 is installed on the inner top of the cabinet 11. A rotating shaft 121 is installed on the side of the rotating motor 12. The rotating shaft 121 penetrates the dilute sulfuric acid treatment box 1 and is connected to the flow balancing plate 13. The flow balancing plate 13 is tilted, and the rectangular edges of the flow balancing plate 13 are all rounded.

[0036] The pipeline assembly 7 includes a first liquid inlet pipe 73 and a second liquid inlet pipe 74 that pass through the cover plate 2 and are connected to the interior of the cabinet 11. The first liquid inlet pipe 73 is connected to one end of the top of the cabinet 11, and the second liquid inlet pipe 74 is connected to the other end of the top of the cabinet 11. The first liquid inlet pipe 73 and the second liquid inlet pipe 74 are used to transport the liquid inside the electrolytic box 5 to the inside of the dilute sulfuric acid treatment box 1. The first liquid inlet pipe 73 and the second liquid inlet pipe 74 are both controlled to open and close by an electromagnetic valve.

[0037] Specifically, in the conventional technical solution, the concentrated chromic acid wastewater is first introduced into the electrolytic box 5 for electrolysis, the main purpose of which is to reduce the toxic hexavalent chromium to trivalent chromium. The electrolytically treated chromic acid wastewater is introduced into the first liquid inlet pipe 73, at which time the second liquid inlet pipe 74 is closed by the solenoid valve, that is, the electrolytically treated chromic acid wastewater flows into the cabinet 11 through the first liquid inlet pipe 73. At this time, the equalizing plate 13 is in an inclined state, and the horizontal height of the equalizing plate 13 directly below the first liquid inlet pipe 73 is higher than the horizontal height of the equalizing plate 13 directly below the second liquid inlet pipe 74. The electrolyzed wastewater flowing out of the first liquid inlet pipe 73 is The chromic acid wastewater will flow on the flow equalizing plate 13, and a plurality of holes and grooves are formed inside the flow equalizing plate 13. When the chromic acid wastewater flows above the flow equalizing plate 13, it will fall from the holes and grooves into the dilute sulfuric acid solution inside the cabinet 11. Due to the inclined setting of the flow equalizing plate 13, the chromic acid wastewater flows and falls above the flow equalizing plate 13, so that the chromic acid wastewater is evenly distributed and falls into the dilute sulfuric acid solution, so that the dilute sulfuric acid solution can treat the chromic acid wastewater more efficiently, and the toxic substances in the chromic acid wastewater form precipitates and sink to the bottom of the cabinet 11. After the toxic substances in the chromic acid wastewater are precipitated, the chromic acid wastewater at this time can be discharged through the liquid outlet pipe 4. A liquid mixed with a dilute sulfuric acid solution is prepared. When it is necessary to clean the equalizing plate 13 on which chromic acid wastewater flows, the conventional treatment machine needs to expose the equalizing plate 13 for cleaning. Since chromic acid wastewater contains toxic substances, this cleaning method is likely to pollute the environment and harm the health of the staff. At this time, the rotating shaft 121 and the equalizing plate 13 are turned over by the driving of the rotating motor 12, so that the equalizing plate 13 originally flowing with chromic acid wastewater is turned over from the upper side to the lower side. By raising the liquid level of the dilute sulfuric acid inside the cabinet 11, the dilute sulfuric acid solution is allowed to contact the bottom of the equalizing plate 13 at this time, and the equalizing plate 13 is cleaned. The cabinet 1 The internal chromic acid wastewater has no contact with the external environment during the whole process, and will not affect the external environment and the staff, because the equalizing plate 13 is originally set at an angle. After turning over, the horizontal height of the equalizing plate 13 directly below the second liquid inlet pipe 74 is higher than the horizontal height of the equalizing plate 13 directly below the first liquid inlet pipe 73. At this time, the equalizing plate 13 is still set at an angle, and the electrolyzed chromic acid wastewater is introduced into the cabinet 11 through the second liquid inlet pipe 74. At this time, the inclined state of the equalizing plate 13 is beneficial to the faster flow of the chromic acid wastewater introduced at the second liquid inlet pipe 74, and the treatment of the chromic acid wastewater can continue while cleaning the equalizing plate 13.

[0038] like Figure 2 As shown, the pipeline assembly 7 includes a plurality of overflow pipes 72 connected to the electrolytic box 5, a transverse pipe 71 is installed below the plurality of overflow pipes 72, and a first liquid inlet pipe 73 and a second liquid inlet pipe 74 are installed at both ends of the transverse pipe 71 respectively.

[0039] Specifically, a plurality of overflow pipes 72 are provided. After the chromic acid wastewater is electrolyzed inside the electrolytic box 5, it will be diverted to the inside of the transverse pipe 71 through the plurality of overflow pipes 72, thereby accelerating the flow rate of the chromic acid wastewater after electrolysis. The chromic acid wastewater after electrolysis will accumulate inside the transverse pipe 71. The first liquid inlet pipe 73 or the second liquid inlet pipe 74 is opened or closed by controlling the solenoid valve to allow the chromic acid wastewater to enter the inside of the cabinet 11.

[0040] like Figure 4-6 As shown, a plurality of inclined through grooves 131 are opened through the interior of the current balancing plate 13, and the inclination direction of the plurality of inclined through grooves 131 is consistent with the inclination direction of the current balancing plate 13. Rectangular grooves 132 are opened on the upper and lower sides of the current balancing plate 13. An inclined strip groove 1321 is opened through the width position of the rectangular groove 132, and a plurality of inclined grooves 1322 are opened through the length position of the rectangular groove 132.

[0041] The inclined direction of the inclined strip groove 1321 is consistent with the inclined direction of the current equalizing plate 13 , and the inclined direction of the plurality of inclined grooves 1322 is consistent with the inclined direction of the current equalizing plate 13 .

[0042] Specifically, a plurality of inclined through grooves 131 penetrate the flow balancing plate 13 and are arranged at an angle. When the chromic acid wastewater is released onto the flow balancing plate 13, the same inclined through groove 131 cannot quickly release all the chromic acid wastewater on the flow balancing plate 13. Therefore, the chromic acid wastewater will flow onto the entire flow balancing plate 13 through the inclined setting of the flow balancing plate 13. The chromic acid wastewater can be evenly distributed and released into the dilute sulfuric acid solution in the cabinet 11 through the plurality of inclined through grooves 131. When the flowing chromic acid wastewater flows into the interior of the rectangular groove 132, it is within the length of the rectangular groove 132. The chromic acid waste water in the position will be released through multiple inclined grooves 1322, and the rest of the chromic acid waste water will flow to the bottom position of the flow equalizing plate 13, that is, within a certain width position of the rectangular groove 132, and will be all released into the interior of the cabinet 11 through the inclined strip grooves 1321 set at this position. Through the setting of the rectangular grooves 132 and the inclined through grooves 131, the chromic acid waste water can be evenly distributed, and the chromic acid waste water will not flow to the distance between the flow equalizing plate 13 and the inner wall of the cabinet 11, thereby avoiding the chromic acid waste water from contacting the inner wall of the cabinet 11 and being easily affected by the dilute sulfuric acid solution.

[0043] Embodiment 2

[0044] like Figure 3 and Figure 7-8As shown, compared with Example 1, another implementation of the present invention is: cleaning components 14 are fixedly installed on both sides of the cabinet 11, and the horizontal height of the two cleaning components 14 is lower than the horizontal height of the flow equalizing plate 13. The cleaning component 14 includes a through strip groove 142 opened on the side of the cabinet 11 and a strip plate 141 covering the side of the through strip groove 142, and a U-shaped water pipe 143 is movably installed inside the strip plate 141.

[0045] A connecting pipe 144 is installed at one end of the U-shaped water pipe 143, and one end of the connecting pipe 144 extends to the outside of the strip plate 141 and is connected to an external liquid supply device. Both ends of the U-shaped water pipe 143 are movably connected to the inside of the strip plate 141. The strip plate 141 is opened in the direction of the through-strip groove 142. The U-shaped water pipe 143 is movably installed inside the opening of the strip plate 141. A fixed motor 146 is fixedly installed on the side of the strip plate 141. The fixed motor 146 is connected to the end of the U-shaped water pipe 143 through an axis. A plurality of spray valves 145 are fixed to the outside of the vertical pipe of the U-shaped water pipe 143, and the plurality of spray valves 145 are controlled by a solenoid valve.

[0046] Specifically, the flow equalizing plate 13 will flip back and forth to cooperate with the cleaning work of the device. After the flow equalizing plate 13 flips, the horizontal height of the portion of the flow equalizing plate 13 directly below the second liquid inlet pipe 74 is higher than the horizontal height of the portion of the flow equalizing plate 13 directly below the first liquid inlet pipe 73. Figure 6 As shown, at this time, the bottom of the flow equalizing plate 13 has been in contact with the chromic acid wastewater for a long time. In order to avoid the long-term accumulation of chromic acid wastewater, it is necessary to clean the bottom of the flow equalizing plate 13. At this time, the cleaning component 14 under the second liquid inlet pipe 74 works, and the dilute sulfuric acid solution is introduced into the U-shaped water pipe 143 through the connecting pipe 144 through the external liquid supply equipment, and then driven by the fixed motor 146 to drive the U-shaped water pipe 143 and multiple spray valves 145 to rotate. The multiple spray valves 145 spray the dilute sulfuric acid solution to clean the bottom of the flow equalizing plate 13. At this time, the spray valve 14 The spraying angle is obtuse to the angle of the inclined through groove 131, so the dilute sulfuric acid solution sprayed by the spray valve 145 will not fall from the inclined through groove 131 to the flow equalizing plate 13. At this time, when the spray valve 145 rotates, the spray of the spray valve 145 will not spray to the nearest inclined strip groove 1321, so as to prevent the dilute sulfuric acid solution from falling on the flow equalizing plate 13. By cleaning the flow equalizing plate 13 by spraying dilute sulfuric acid, the amount of dilute sulfuric acid can be effectively saved. Moreover, after the dilute sulfuric acid falls into the cabinet 11, it can continue to react with the chromic acid wastewater without waste.

[0047] Working principle: In the conventional technical scheme, the concentrated chromic acid wastewater is first introduced into the electrolytic box 5 for electrolysis, the main purpose of which is to reduce the toxic hexavalent chromium to trivalent chromium. The electrolytically treated chromic acid wastewater is introduced into the first liquid inlet pipe 73. At this time, the second liquid inlet pipe 74 is closed by the solenoid valve, that is, the electrolytically treated chromic acid wastewater flows into the cabinet 11 through the first liquid inlet pipe 73. At this time, the equalizing plate 13 is in an inclined state, and the horizontal height of the equalizing plate 13 directly below the first liquid inlet pipe 73 is higher than the horizontal height of the equalizing plate 13 directly below the second liquid inlet pipe 74. The electrolyzed chromic acid wastewater flowing out of the tube 73 will flow on the flow equalizing plate 13. A plurality of holes and grooves are formed inside the flow equalizing plate 13. When the chromic acid wastewater flows above the flow equalizing plate 13, it will fall from the holes and grooves into the dilute sulfuric acid solution inside the cabinet 11. Due to the inclined setting of the flow equalizing plate 13, the chromic acid wastewater flows and falls above the flow equalizing plate 13, so that the chromic acid wastewater is evenly distributed and falls into the dilute sulfuric acid solution, so that the dilute sulfuric acid solution can treat the chromic acid wastewater more efficiently, and the toxic substances in the chromic acid wastewater form sediments and sink to the bottom of the cabinet 11. When the chromic acid wastewater needs to be treated, When cleaning the chromic acid wastewater on the flow equalizing plate 13, the traditional treatment machine needs to expose the flow equalizing plate 13 to clean it. Because the chromic acid wastewater contains toxic substances, this cleaning method is easy to pollute the environment and harm the health of the staff. At this time, the rotating shaft 121 and the flow equalizing plate 13 are turned over by the driving of the rotating motor 12, so that the flow equalizing plate 13 originally flowing with chromic acid wastewater is turned over to the downward side, and the liquid level of the dilute sulfuric acid inside the cabinet 11 is raised to allow the dilute sulfuric acid solution to contact the bottom of the flow equalizing plate 13 at this time, so as to clean the flow equalizing plate 13. The chromic acid wastewater inside the cabinet 11 is completely in contact with the outside. There is no contact with the external environment, and it will not affect the external environment and staff, because the flow equalizing plate 13 is originally set at an angle. After flipping, the horizontal height of the flow equalizing plate 13 directly below the second liquid inlet pipe 74 is higher than the horizontal height of the flow equalizing plate 13 directly below the first liquid inlet pipe 73. At this time, the flow equalizing plate 13 is still set at an angle, and the chromic acid wastewater after electrolysis is introduced into the cabinet 11 through the second liquid inlet pipe 74. At this time, the inclined state of the flow equalizing plate 13 is beneficial to the faster flow of the chromic acid wastewater introduced at the second liquid inlet pipe 74, and the chromic acid wastewater can be treated while the flow equalizing plate 13 is cleaned.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A chromic acid wastewater treatment machine, comprising an electrolytic box (5) and an exhaust assembly (6) installed above the electrolytic box (5), characterized in that: A dilute sulfuric acid treatment box (1) is installed on the side of the electrolytic box (5), a cover plate (2) is installed above the dilute sulfuric acid treatment box (1), a liquid inlet pipe (3) is installed above one side of the dilute sulfuric acid treatment box (1), a liquid outlet pipe (4) is installed below the other side of the dilute sulfuric acid treatment box (1), the liquid outlet pipe (4) controls the liquid outlet through a solenoid valve, a pipeline assembly (7) is installed above the dilute sulfuric acid treatment box (1), and the dilute sulfuric acid treatment box (1) is connected to the electrolytic box (5) through the pipeline assembly (7); The dilute sulfuric acid treatment box (1) comprises a cabinet (11) and a rotating motor (12) installed on one side of the dilute sulfuric acid treatment box (1), a flow balancing plate (13) is installed on the inner top of the cabinet (11), a rotating shaft (121) is installed on the side of the rotating motor (12), the rotating shaft (121) passes through the dilute sulfuric acid treatment box (1) and is connected to the flow balancing plate (13), the flow balancing plate (13) is arranged obliquely, and the rectangular edges of the flow balancing plate (13) are all arranged smoothly; The pipeline assembly (7) comprises a first liquid inlet pipe (73) and a second liquid inlet pipe (74) which penetrate the cover plate (2) and are connected to the interior of the cabinet (11); the first liquid inlet pipe (73) is connected to one end of the top of the cabinet (11), and the second liquid inlet pipe (74) is connected to the other end of the top of the cabinet (11); the first liquid inlet pipe (73) and the second liquid inlet pipe (74) are used to transport the liquid inside the electrolytic box (5) to the inside of the dilute sulfuric acid treatment box (1); the first liquid inlet pipe (73) and the second liquid inlet pipe (74) are both controlled to open and close by a solenoid valve.

2. A chromic acid wastewater treatment machine according to claim 1, characterized in that: The pipeline assembly (7) comprises a plurality of overflow pipes (72) connected to the electrolytic box (5), a transverse pipe (71) is installed below the plurality of overflow pipes (72), and a first liquid inlet pipe (73) and a second liquid inlet pipe (74) are respectively installed at both ends of the transverse pipe (71).

3. A chromic acid wastewater treatment machine according to claim 1, characterized in that: A plurality of inclined through-grooves (131) are provided through the interior of the flow balancing plate (13), and the inclination direction of the plurality of inclined through-grooves (131) is consistent with the inclination direction of the flow balancing plate (13).

4. A chromic acid wastewater treatment machine according to claim 3, characterized in that: The upper and lower sides of the flow equalizing plate (13) are both provided with rectangular grooves (132), the width position of the rectangular groove (132) is penetrated by an inclined strip groove (1321), and the length position of the rectangular groove (132) is penetrated by a plurality of inclined grooves (1322).

5. A chromic acid wastewater treatment machine according to claim 4, characterized in that: The inclination direction of the inclined strip groove (1321) is consistent with the inclination direction of the current equalizing plate (13), and the inclination direction of the plurality of inclined grooves (1322) is consistent with the inclination direction of the current equalizing plate (13).

6. The chromic acid wastewater treatment machine according to claim 1, characterized in that: Cleaning components (14) are fixedly mounted on both sides of the cabinet (11), and the horizontal heights of the two cleaning components (14) are lower than the horizontal height of the flow equalizing plate (13).

7. A chromic acid wastewater treatment machine according to claim 6, characterized in that: The cleaning assembly (14) comprises a through strip groove (142) provided on the side of the cabinet (11) and a strip plate (141) installed to cover the side of the through strip groove (142), wherein a U-shaped water pipe (143) is movably installed inside the strip plate (141).

8. A chromic acid wastewater treatment machine according to claim 7, characterized in that: A connecting pipe (144) is installed at one end of the U-shaped water pipe (143), and one end of the connecting pipe (144) extends to the outside of the strip plate (141) and is connected to an external liquid supply device.

9. A chromic acid wastewater treatment machine according to claim 8, characterized in that: Both ends of the U-shaped water pipe (143) are movably connected to the inside of the strip plate (141); the strip plate (141) is opened in the direction of the through-strip groove (142); and the U-shaped water pipe (143) is movably installed inside the opening of the strip plate (141).

10. A chromic acid wastewater treatment machine according to claim 9, characterized in that: A fixed motor (146) is fixedly installed on the side of the strip plate (141), and the fixed motor (146) is connected to the end of the U-shaped water pipe (143) through a shaft. A plurality of spray valves (145) are fixed on the outside of the vertical pipe of the U-shaped water pipe (143), and the plurality of spray valves (145) are controlled by a solenoid valve.

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