Device for deep multi-stage treatment of industrial wastewater

Abstract

The invention discloses a device for deep multi-stage treatment of industrial wastewater. A wastewater treatment process of the device comprises the following steps: 1) collecting wastewater through a collecting tank; (2) introducing the wastewater in the collecting tank into a pH regulating tank, testing the pH value of the wastewater in the tank through a pH tester in the pH regulating tank, and regulating the pH value to be 3-5.5; (3) the adjusted wastewater enters an iron-carbon reactor, iron-carbon micro-electrolysis treatment is conducted on the wastewater in the iron-carbon reactor, and the reaction time is 40-95 min; 4) feeding the wastewater treated by the iron-carbon reactor into a neutralizing device, neutralizing the wastewater, and adjusting the pH value of the wastewater to 7-9; according to the present invention, the flowing direction of the wastewater can be changed, the wastewater neutralization rate can be accelerated, the wastewater can be uniformly neutralized, and the discharged clear water can be prevented from carrying a large amount of anaerobic bacteria sludge.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a device for deep multi-stage treatment of industrial wastewater. Background Art

[0002] Wastewater, sewage and waste liquid generated in the industrial production process contain industrial production materials, intermediates and products lost with water, as well as pollutants generated in the production process; with the increase in the types and amounts of industrial wastewater, the pollution of water bodies is becoming more widespread and serious, threatening human health and safety; therefore, for the protection of the environment, the treatment of industrial wastewater is more important than the treatment of urban sewage.

[0003] After searching, the prior art announcement number is CN116730547A, which is a wastewater treatment equipment and treatment method. The equipment includes a entanglement removal device, a basket filter, a water spraying pipe, a vertical flow artificial wetland pool, an anaerobic treatment system, a gas-liquid separation device and a PLC control system; the wastewater enters the box through the water inlet pipe of the entanglement removal device, the separated wastewater flows into the basket filter through the first drainage pipe, the wastewater treated by the basket filter is sprayed to the vertical flow artificial wetland pool through the water spraying pipe, and flows to the anaerobic treatment system through the second drainage pipe for treatment, and the anaerobic treatment system produces biogas containing water and flows to the gas-liquid separation device through the first exhaust pipe; the treatment process has the following disadvantages: although the anaerobic treatment system in the above-mentioned wastewater treatment equipment can achieve better gas-liquid separation, the anaerobic treatment system is easy to carry part of the sludge in the process of discharging the wastewater degraded by anaerobic bacteria through the third drainage pipe after sedimentation, thereby affecting the wastewater treatment effect; and the lack of a stirring mechanism causes uneven mixing of the wastewater entering the anaerobic treatment system and the anaerobic bacteria.

[0004] The prior art announcement number is CN219384879U, which is an industrial wastewater pretreatment neutralization device, belonging to the technical field of wastewater pretreatment, and includes a device main body, a top cover is provided at the upper end of the device main body, and a water inlet pipe is connected to the device main body, a water outlet pipe is fixed to the device main body, a motor is provided on the top cover, and a rotating shaft is connected to the lower end of the motor; the stirring structure is detachably connected to the rotating shaft; its treatment process has the following disadvantages: the wastewater and the neutralizer are stirred and mixed by stirring blades, which can only make the wastewater flow horizontally, and the vertical stirring effect of the wastewater is not good, which leads to uneven stirring of the wastewater and the neutralizer. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a device for deep multi-stage treatment of industrial wastewater. The wastewater is stirred in multiple directions by the cooperation of a neutralization mechanism and a mixing mechanism, thereby changing the flow direction of the wastewater, which can not only accelerate the neutralization rate of the wastewater, but also make the neutralization of the wastewater more uniform; it can realize the recycling of biogas; when entering the separation box for separation, the wastewater is subjected to multi-stage sedimentation through baffles, compression plates, and "V"-shaped plates, which can prevent the discharged clean water from carrying a large amount of anaerobic sludge.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A device for deep multi-stage treatment of industrial wastewater, the wastewater treatment process steps of the device are as follows:

[0008] 1) Collect wastewater through a collection pool;

[0009] 2) The wastewater in the collection pool is passed into the pH adjustment pool, the pH value of the wastewater in the pool is tested by the pH tester in the pH adjustment pool, and the pH value is adjusted to pH 3-5.5;

[0010] 3) The conditioned wastewater enters the iron-carbon reactor, where it is treated with iron-carbon micro-electrolysis for 40-95 minutes, and oxygen-containing gas is introduced into the reactor; iron-carbon micro-electrolysis mainly refers to mixing iron filings and carbon particles into an iron-carbon bed in which iron and carbon are in close contact. When the wastewater to be treated passes through the iron-carbon bed, the active iron will form an anode, and the inert carbon will form a cathode, which will form countless micro-primary cells in the wastewater, and a series of electrochemical redox reactions will occur at the two poles of the micro-primary cells, thereby achieving the purpose of degrading pollutants in the wastewater;

[0011] 4) The wastewater treated by the iron-carbon reactor enters the neutralization device to neutralize the wastewater and adjust the pH value of the wastewater to 7-9, which is convenient for sedimentation treatment of the wastewater;

[0012] 5) The neutralized wastewater is passed into the anaerobic device for anaerobic treatment, so that the remaining organic matter can be fully decomposed;

[0013] 6) Sedimentation treatment of anaerobic wastewater in sedimentation tanks;

[0014] The neutralization device of step 4) includes a box body, a water inlet pipe, a neutralization chamber, a neutralization mechanism, and a partition; the partition is fixed inside the box body, dividing the box body into a neutralization chamber and an anaerobic chamber; the water inlet pipe is located on the side wall of the box body and is connected to the neutralization chamber; the neutralization mechanism is installed in the neutralization chamber; the wastewater enters the neutralization chamber through the water inlet pipe, and then the neutralization agent is introduced into the neutralization chamber, and the wastewater and the neutralization agent are mixed by the neutralization mechanism, which can not only accelerate the neutralization rate of the wastewater, but also make the wastewater evenly neutralized.

[0015] The anaerobic device in step 5) comprises an anaerobic bin, a water distribution pipe, a stirring mechanism, a separation mechanism, and a water outlet pipe; the water distribution pipe connects the neutralization bin and the anaerobic bin, and a plurality of branch pipes are arranged on the water distribution pipe; the stirring mechanism is installed in the anaerobic bin, the separation mechanism is installed in the anaerobic bin above the stirring mechanism, and the water outlet pipe is located on the side wall of the box body and is connected with the anaerobic bin; the neutralized wastewater is pumped to the bottom of the anaerobic bin through the water distribution pipe, and when the wastewater flows upward through the fixed anaerobic filler, the anaerobic bacteria in the anaerobic filler decompose the organic matter in the wastewater; then the wastewater continues to flow upward, the stirring mechanism stirs the wastewater, and at the same time the wastewater contacts the anaerobic filler in the stirring mechanism, thereby performing secondary anaerobic treatment on the wastewater, so that the organic matter in the wastewater can be fully decomposed; finally, the decomposed wastewater enters the separation mechanism, and the separation mechanism separates the biogas and sludge in the wastewater and discharges them, while the clean water is discharged through the water outlet pipe.

[0016] The neutralization mechanism includes a mounting ring, a mounting plate, a movable plate, an intermediate plate, a transmission plate, a connecting plate, a bidirectional threaded rod, a supporting plate, a motor I, a square plate, and a motor II; the square plate is fixed to the inner wall of the box body, the mounting ring is rotatably connected to the square plate through a bearing, and a gear ring is provided on the outer wall of the mounting ring; the motor II is fixed to the square plate, and a gear I is provided on the output shaft; a pair of mounting plates are provided, which are symmetrically fixed on the inner wall of the mounting ring, and a guide groove is provided on the mounting plate; a pair of supporting plates are provided, both of which are fixed on the side walls of the box body, and a turntable is provided on the top of the supporting plate; both ends of the bidirectional threaded rod are rotatably connected to the turntable of the supporting plate through bearings; both ends of the movable plate are movably connected in the corresponding guide grooves, the transmission plate is connected to the bidirectional threaded rod through threads, and both ends of the connecting plate are connected to the bearing shaft They are respectively connected to the moving plate and the transmission plate for rotation; the middle plate is fixed on the connecting plate between the connecting plate and the transmission plate; the motor I is fixed on the turntable on the top of the support plate, and the output end is connected to one end of the two-way threaded rod; the motor I provides power to drive the two-way threaded rod to rotate, the two-way threaded rod drives the transmission plate to move up and down through the thread, the transmission plate drives the moving plate to move along the guide groove through the connecting plate, and drives the middle plate to move at the same time, so that the transmission plate, the middle plate and the moving plate are located at different heights, so that wastewater of different depths can be stirred, so that the wastewater can be neutralized more evenly; the motor II provides power to drive the gear I to rotate, the gear I drives the gear ring to rotate, the gear ring drives the installation ring to rotate, the installation ring drives the installation plate, the middle plate and the connecting plate to rotate, so as to stir the wastewater.

[0017] The middle plate is provided with fixed columns at both ends, the interior of the fixed columns is set to be hollow, the motor V is fixed inside the fixed columns, and the output shaft is connected to the stirring blade; the motor V provides power to drive the stirring blade to rotate, and the stirring blade stirs the wastewater;

[0018] The mounting plate is provided with a mixing mechanism, which includes a rotating shaft, a conical cylinder, an arc plate, an inclined plate, a motor VI, a spiral blade, and a shield plate; the rotating shaft is rotatably connected to the mounting plate through a bearing, the conical cylinder is symmetrically mounted on the rotating shaft, the arc plate is evenly connected to the outer wall of the conical cylinder with the conical cylinder as the center, and the inclined plate is fixed to the inner wall of the end of the conical cylinder with a larger diameter, so as to stir the wastewater entering the conical cylinder; the spiral blade is located inside the conical cylinder and is rotatably connected to the rotating shaft; the shield plate is fixed to the arc plate. The arc plate is away from one end of the conical cylinder, which can ensure that the wastewater enters the conical cylinder along the arc plate; the motor VI is fixed inside the mounting plate, and the output end is connected to the rotating shaft; the motor VI provides power to drive the rotating shaft to rotate, and the rotating shaft drives the conical cylinder to rotate, thereby stirring the wastewater; at the same time, the arc plate scrapes the wastewater into the conical cylinder, so that the wastewater enters along the large diameter end of the conical cylinder and is discharged through the small diameter end, thereby changing the flow direction of the wastewater, which can not only speed up the neutralization rate of the wastewater, but also make the neutralization of the wastewater more uniform.

[0019] The separation mechanism includes a separation box, a "V"-shaped plate, a partition plate, a water tank, a baffle, a filter plate, a sliding door, a support arm, a motor VII, a gear II, and a rack I; the separation box is fixed inside the box body, a connecting hole is provided on the side wall of the separation box, and a plurality of vents are provided on the top of the separation box; the partition plate is fixed on the inner wall of the separation box to divide the separation box into two parts; the water tank is fixed on the partition plate, and a plurality of water inlets are provided on the water tank, and the water inlets are located above the "V"-shaped plate, and one end of the water tank is connected to the outlet pipe; the "V"-shaped plate is provided with a plurality of evenly fixed on the side wall of the water tank and the inner wall of the separation box; the baffle is fixed at both ends of the water tank near the connecting hole; a pair of filter plates are provided, which are symmetrically fixed on the inner wall of the separation box, and a sewage trough is provided between the filter plates; a sliding groove is provided on the connecting hole of the separation box, and the sliding door is movably installed in the sliding groove, and the support arm is fixed on the outer wall of the sliding door. On the upper part, motor VII is fixedly hung on the top of the support arm, gear II is connected to the output shaft of motor VII, and rack I is fixed on the side wall above the connecting hole of the separation box; rack I is meshed with gear II; motor VII provides power to drive gear II to rotate, so that gear II moves along rack I, thereby driving the support arm and the sliding door to move; when the sliding door moves to one side, the connecting hole of the separation box on one side of the partition plate is opened, and the wastewater decomposed by anaerobic bacteria enters the separation box on one side of the partition plate through the opened connecting hole, and flows downward after being blocked by the baffle, and at the same time, the biogas in the wastewater flows upward, so that the wastewater and biogas can be quickly separated; then the wastewater moves upward and passes through the "V"-shaped plate for sedimentation, thereby separating the water and the mud, and the separated water enters the inside of the water tank through the water inlet, while the sludge settles downward and falls on the filter plate, and then enters the sewage tank for discharge.

[0020] A concentrating mechanism is provided inside the separation box, and the concentrating mechanism includes a compression plate, a rotating rod, an adjusting plate, a motor IV, a sprocket, a chain, a fixed plate, and an electric push rod; the fixed plate is fixed on the outer wall of the separation box, a pair of electric push rods are provided, which are respectively fixed on the side wall of the fixed plate and inside the partition plate, a pair of adjusting plates are provided, respectively connected to the corresponding output ends of the electric push rods, both ends of the rotating rod pass through the limiting grooves and are respectively rotatably connected to the corresponding adjusting plates, the compression plate is fixed on the rotating rod, and a plurality of sprockets are provided at one end of the rotating rod close to the adjusting plate, and adjacent sprockets are meshed and connected by chains; the motor IV is fixed on the adjusting plate, and the output end is connected to the rotating rod; the motor IV provides power to drive the rotating rod to rotate, and the rotating rod drives the adjacent rotating rods through the sprocket and the chain The movable rod rotates, and the rotating rod drives the compression plate to rotate, thereby adjusting the angle of the compression plate; when the wastewater is precipitated, the compression plate is adjusted to a certain inclination angle with the filter plate, and when the wastewater flows upward through the compression plate, the sludge in the wastewater contacts the inclined compression plate and is blocked, thereby separating the water from the sludge; then when there is a lot of precipitation on the filter plate; the electric push rod provides power to drive the adjustment plate to move, and the adjustment plate drives the rotating rod and the compression plate to move along the limit groove, driving the compression plate parallel to the filter plate to move, thereby concentrating the precipitation on the filter plate; after the concentration is completed, the compression plate is moved to a suitable position, and then the compression plate is driven to rotate by motor IV to scrape the precipitation on the filter plate to the sewage tank, and finally discharged through the sewage pipe.

[0021] The stirring mechanism includes a fixed shaft, a rotating sleeve, a connecting frame, a fixed roller, a hollow plate, a plug plate, a spoiler, a receiving plate, and a motor III; the receiving plate is fixed to the inner wall of the box body, and the fixed shaft is fixed to the receiving plate; the rotating sleeve is located outside the fixed shaft, the connecting frame is connected to the rotating sleeve, a bevel gear I is provided on the top of the rotating sleeve, a pair of fixed rollers are provided, and they are symmetrically fixed on the fixed shaft up and down, and a spiral groove is provided on the outer wall of the fixed roller; one end of the "Z"-shaped rod is rotatably connected to the connecting frame, and the other end is movably connected to the spiral groove; two groups of hollow plates are provided, both of which are rotatably connected to the corresponding "Z"-shaped rods; the plug plate is fixed The motor III is fixed on the outer wall of one group of hollow plates, and the spoiler is connected to the outer wall of another group of hollow plates; the motor III is fixed on the top of the box body, and the output end is provided with a bevel gear II, and the bevel gear I and the bevel gear II are meshed and connected; the motor III provides power to drive the rotating sleeve to rotate through the bevel gear I and the bevel gear II, and the rotating sleeve drives the connecting frame to rotate, and the connecting frame drives the hollow plate to rotate, and further drives the plug plate and the spoiler to rotate; at the same time, it drives the "Z"-shaped rod to rotate, so that one end of the "Z"-shaped rod moves along the spiral groove on the surface of the fixed roller, and further causes the other end of the "Z"-shaped rod to swing, and the "Z"-shaped rod drives the hollow plate to swing;

[0022] The hollow plate is provided with a fine-tuning mechanism inside, which includes a waterproof shell, a motor VIII, a gear III, a rack II, a cam, and a grid plate; the grid plate is provided with a number of gears connected to the inner wall of the hollow plate through a rotating shaft, the cam is connected to the rotating shaft at one end of the grid plate, the waterproof shell is fixed at one end of the hollow plate, the motor VIII is fixed at the top of the hollow plate inside the waterproof shell, the gear III is connected to the output shaft of the motor VIII, the rack II is connected to the end of the cam away from the grid plate through the rotating shaft, and the rack II is meshed with the gear III; the motor VIII provides power to drive the gear III to rotate, the gear III drives the rack II to move, and the rack II drives the grid plate to swing through the cam, so that the anaerobic filler inside the hollow plate can be stirred, and at the same time, the direction of wastewater entering the hollow plate can be adjusted, thereby changing the flow direction of the wastewater, and the flow rate of wastewater entering the hollow plate can also be controlled.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1) In the neutralization mechanism, motor I provides power to drive the bidirectional threaded rod to rotate, and the bidirectional threaded rod drives the transmission plate to move up and down through the thread, and the transmission plate drives the movable plate to move along the guide groove through the connecting plate, and drives the intermediate plate to move at the same time, so that the transmission plate, the intermediate plate, and the movable plate are located at different heights, so that the wastewater of different depths can be stirred, so that the wastewater can be neutralized more evenly; motor II provides power to drive gear I to rotate, gear I drives the gear ring to rotate, the gear ring drives the mounting ring to rotate, and the mounting ring drives the mounting plate, the intermediate plate, and the connecting plate to rotate; at the same time, motor VI provides power to drive the rotating shaft to rotate, and the rotating shaft drives the conical cylinder to rotate, so as to stir the wastewater; at the same time, the arc plate scrapes the wastewater into the inside of the conical cylinder, so that the wastewater enters along the large diameter end of the conical cylinder and is discharged through the small diameter end, so that the flow direction of the wastewater can be changed, which can not only accelerate the neutralization rate of the wastewater, but also make the neutralization of the wastewater more even;

[0025] 2) Motor VII in the separation mechanism provides power to drive gear II to rotate, so that gear II moves along rack I, thereby driving the support arm and the sliding door to move; when the sliding door moves to one side, the connecting hole of the separation box on one side of the partition plate is opened, and the wastewater decomposed by anaerobic bacteria enters the separation box on one side of the partition plate through the opened connecting hole, and flows downward after being blocked by the baffle, while the biogas in the wastewater flows upward, so that the wastewater and biogas can be quickly separated; then the wastewater moves upward and passes through the "V"-shaped plate for sedimentation, thereby separating the water and the mud, and the separated water enters the water tank through the water inlet, while the mud settles downward and falls on the filter plate; the sliding door is moved to open the connecting hole on the other side of the partition plate to separate the wastewater; then the sludge on the side closed by the sliding door is conveniently discharged from the sewage tank;

[0026] 3) The organic matter in the wastewater is degraded by anaerobic bacteria to produce a large amount of biogas, which can be recycled and utilized; when entering the separation box for separation, the wastewater is subjected to multi-stage sedimentation through baffles, compression plates, and "V"-shaped plates, which can prevent the discharged clean water from carrying a large amount of sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attached Figure 1 It is a schematic diagram of the structure of a device for deep multi-stage treatment of industrial wastewater according to the present invention;

[0028] Attached Figure 2 It is a schematic diagram of the internal structure of a device for deep multi-stage treatment of industrial wastewater according to the present invention;

[0029] Attached Figure 3 It is a schematic diagram of the structure of a neutralization chamber of a device for deep multi-stage treatment of industrial wastewater according to the present invention;

[0030] Attached Figure 4 It is a structural schematic diagram of a neutralization mechanism in a device for deep multi-stage treatment of industrial wastewater according to the present invention;

[0031] Attached Figure 5 It is a structural schematic diagram of a mixing mechanism in a device for deep multi-stage treatment of industrial wastewater according to the present invention;

[0032] Attached Figure 6 This is a schematic diagram of the structure of the separation mechanism in a device for deep multi-stage treatment of industrial wastewater according to the present invention. Figure 1 ;

[0033] Attached Figure 7 Yes Figure 6 The enlarged structural diagram of the middle A part;

[0034] Attached Figure 8 This is a schematic diagram of the structure of the separation mechanism in a device for deep multi-stage treatment of industrial wastewater according to the present invention. Figure 2 ;

[0035] Attached Fig. 9 It is a schematic diagram of the water flow direction of the separation mechanism in a device for deep multi-stage treatment of industrial wastewater according to the present invention;

[0036] Attached Fig.10 This is a schematic diagram of the structure of the separation mechanism in a device for deep multi-stage treatment of industrial wastewater according to the present invention. Figure 3 ;

[0037] Attached Fig.11 It is a structural schematic diagram of a stirring mechanism in a device for deep multi-stage treatment of industrial wastewater according to the present invention;

[0038] Attached Fig.12 It is a structural schematic diagram of a hollow plate in a device for deep multi-stage treatment of industrial wastewater according to the present invention;

[0039] In the figure: 1, box body; 2, water inlet pipe; 3, water outlet pipe; 4, neutralization chamber; 5, neutralization mechanism; 501, mounting ring; 5011, gear ring; 502, mounting plate; 5021, guide groove; 503, moving plate; 504, middle plate; 5041, fixing column; 5042, motor V; 5043, stirring fan blade; 505, transmission plate; 506, connecting plate; 507, two-way threaded rod; 508, mixing mechanism; 5081, rotating shaft; 5082, conical cylinder; 50 83, curved plate; 5084, inclined plate; 5085, motor VI; 5086, spiral blade; 5087, shield; 509, support plate; 5091, turntable; 510, motor I; 511, square plate; 512, motor II; 5121, gear I; 6, anaerobic chamber; 7, water distribution pipe; 8, stirring mechanism; 801, fixed shaft; 802, rotating sleeve; 8021, bevel gear II; 803, connecting frame; 804, fixed roller; 8041, spiral groove; 805, Hollow plate; 806, fine adjustment mechanism; 8061, waterproof shell; 8062, motor VIII; 8063, gear III; 8064, rack II; 8065, cam; 8066, grid plate; 807, plug plate; 808, spoiler; 809, receiving plate; 810, motor III; 8101, bevel gear I; 811, "Z"-shaped rod; 9, separation mechanism; 901, separation box; 9011, connecting hole; 9012, limit groove; 902, "V"-shaped plate; 903, partition plate ;904, water tank; 9041, water inlet; 905, baffle; 906, concentration mechanism; 9061, compression plate; 9062, rotating rod; 9063, adjustment plate; 9064, motor IV; 9065, sprocket; 9066, chain; 9067, fixing plate; 9068, electric push rod; 907, filter plate; 9071, drain trough; 908, sliding door; 909, support arm; 910, motor VII; 911, gear II; 912, rack I; 11, partition. DETAILED DESCRIPTION

[0040] To facilitate the understanding of those skilled in the art, Figure 1-12 , the technical solution of the present invention is further specifically described.

[0041] Example 1

[0042] A device for deep multi-stage treatment of industrial wastewater, the wastewater treatment process steps of the device are as follows:

[0043] 1) Collect wastewater through a collection pool;

[0044] 2) The wastewater in the collection pool is passed into the pH adjustment pool, the pH value of the wastewater in the pool is tested by the pH tester in the pH adjustment pool, and the pH value is adjusted to pH 3;

[0045] 3) The conditioned wastewater enters the iron-carbon reactor, where it is treated with iron-carbon micro-electrolysis for 40 minutes, and oxygen-containing gas is introduced into the reactor; iron-carbon micro-electrolysis mainly refers to mixing iron filings and carbon particles into an iron-carbon bed in which iron and carbon are in close contact. When the wastewater to be treated passes through the iron-carbon bed, the active iron will form an anode, and the inert carbon will form a cathode, which will form countless micro-primary cells in the wastewater, and a series of electrochemical redox reactions will occur at the two poles of the micro-primary cells, thereby achieving the purpose of degrading pollutants in the wastewater;

[0046] 4) The wastewater treated by the iron-carbon reactor enters the neutralization device to neutralize the wastewater and adjust the pH value of the wastewater to 7;

[0047] 5) The neutralized wastewater is passed into the anaerobic device for anaerobic treatment, so that the remaining organic matter can be fully decomposed;

[0048] 6) Sedimentation treatment of anaerobic wastewater in sedimentation tanks;

[0049] The neutralization device of step 4) comprises a box body 1, a water inlet pipe 2, a neutralization chamber 4, a neutralization mechanism 5, and a partition 11; the partition 11 is fixed inside the box body 1, dividing the box body 1 into a neutralization chamber 4 and an anaerobic chamber 6; the water inlet pipe 2 is located on the side wall of the box body and is connected to the neutralization chamber 4; the neutralization mechanism 5 is installed in the neutralization chamber 4; the wastewater enters the neutralization chamber 4 through the water inlet pipe 2, and then the neutralization agent is introduced into the neutralization chamber 4, and the wastewater and the neutralization agent are mixed by the neutralization mechanism 5, which can not only accelerate the neutralization rate of the wastewater, but also make the wastewater evenly neutralized;

[0050] The anaerobic device in step 5) comprises an anaerobic bin 6, a water distribution pipe 7, a stirring mechanism 8, a separation mechanism 9, and a water outlet pipe 3; the water distribution pipe 7 connects the neutralization bin 4 and the anaerobic bin 6, and a plurality of branch pipes are arranged on the water distribution pipe 7; the stirring mechanism 8 is installed in the anaerobic bin 6, the separation mechanism 9 is installed in the anaerobic bin 6 above the stirring mechanism 8, and the water outlet pipe is located on the side wall of the box body and is connected with the anaerobic bin; the neutralized wastewater is pumped to the bottom of the anaerobic bin 6 through the water distribution pipe 7, and when the wastewater flows upward through the fixed anaerobic filler, the anaerobic bacteria in the anaerobic filler decompose the organic matter in the wastewater; then the wastewater continues to flow upward, the stirring mechanism 8 stirs the wastewater, and at the same time the wastewater contacts the anaerobic filler in the stirring mechanism 8, so as to perform secondary anaerobic treatment on the wastewater, so as to fully decompose the organic matter in the wastewater; finally, the decomposed wastewater enters the separation mechanism 9, and the separation mechanism 9 separates the biogas and sludge in the wastewater and discharges them, while the clean water is discharged through the water outlet pipe 3.

[0051] The neutralization mechanism 5 includes a mounting ring 501, a mounting plate 502, a moving plate 503, an intermediate plate 504, a transmission plate 505, a connecting plate 506, a bidirectional threaded rod 507, a support plate 509, a motor I 510, a square plate 511, and a motor II 512; the square plate 511 is fixed to the inner wall of the box body 1, the mounting ring 501 is rotatably connected to the square plate 511 through a bearing, and a gear ring 5011 is provided on the outer wall of the mounting ring 501; the motor II 512 is fixed to the square plate 511, and a gear I 51 is provided on the output shaft. 21; a pair of mounting plates 502 are provided, symmetrically fixed on the inner wall of the mounting ring 501, and a guide groove 5021 is provided on the mounting plate 502; a pair of support plates 509 are provided, both of which are fixed on the side wall of the box body 1, and a turntable 5091 is provided on the top of the support plate 509; both ends of the bidirectional threaded rod 507 are rotatably connected to the turntable 5091 of the support plate 509 through bearings; both ends of the movable plate 503 are movably connected in the corresponding guide groove 5021, the transmission plate 505 is connected to the bidirectional threaded rod 507 by threads, and both ends of the connecting plate 506 are connected by screws. The bearing shafts are respectively connected to the moving plate 503 and the transmission plate 505; the intermediate plate 504 is fixed to the connecting plate 506 between the connecting plate 506 and the transmission plate 505; the motor I 510 is fixed to the turntable 5091 at the top of the support plate 509, and the output end is connected to one end of the bidirectional threaded rod 507; the motor I 510 provides power to drive the bidirectional threaded rod 507 to rotate, and the bidirectional threaded rod 507 drives the transmission plate 505 to move up and down through the thread, and the transmission plate 505 drives the moving plate 503 along the guide groove 50 through the connecting plate 506. 21 moves, and at the same time drives the middle plate 504 to move, so that the transmission plate 505, the middle plate 504, and the moving plate 503 are located at different heights, so that the wastewater at different depths can be stirred, and the wastewater can be neutralized more evenly; the motor II 512 provides power to drive the gear I 5121 to rotate, the gear I 5121 drives the gear ring 5011 to rotate, the gear ring 5011 drives the installation ring 501 to rotate, and the installation ring 501 drives the installation plate 502, the middle plate 504, and the connecting plate 506 to rotate, so as to stir the wastewater.

[0052] The middle plate 504 is provided with fixed columns 5041 at both ends, the interior of the fixed columns 5041 is set to be hollow, the motor V 5042 is fixed inside the fixed columns 5041, and the stirring blades 5043 are connected to the output shaft; the motor V 5042 provides power to drive the stirring blades 5043 to rotate, and the stirring blades 5043 stir the wastewater.

[0053] The mounting plate 502 is provided with a mixing mechanism 508, which includes a rotating shaft 5081, a conical cylinder 5082, an arc plate 5083, an inclined plate 5084, a motor VI 5085, a spiral blade 5086, and a shield 5087; the rotating shaft 5081 is rotatably connected to the mounting plate 502 through a bearing, the conical cylinder 5082 is symmetrically mounted on the rotating shaft 5081, the arc plate 5083 is evenly connected to the outer wall of the conical cylinder 5082 with the conical cylinder 5082 as the center, and the inclined plate 5084 is fixed to the inner wall of the end of the conical cylinder 5082 with a larger diameter, and can stir the wastewater entering the conical cylinder 5082; the spiral blade 5086 is located inside the conical cylinder 5082 and is rotatably connected to the rotating shaft 5081; The shield plate 5087 is fixed at one end of the arc plate 5083 away from the conical cylinder 5082, which can ensure that the wastewater enters the conical cylinder 5082 along the arc plate 5083; the motor VI 5085 is fixed inside the mounting plate 502, and the output end is connected to the rotating shaft 5081; the motor VI 5085 provides power to drive the rotating shaft 5081 to rotate, and the rotating shaft 5081 drives the conical cylinder 5082 to rotate, thereby stirring the wastewater; at the same time, the arc plate 5083 scrapes the wastewater into the conical cylinder 5082, so that the wastewater enters along the large diameter end of the conical cylinder 5082 and is discharged through the small diameter end, thereby changing the flow direction of the wastewater, which can not only speed up the neutralization rate of the wastewater, but also make the neutralization of the wastewater more uniform; the spiral blades can mix the wastewater again.

[0054] The separation mechanism 9 includes a separation box 901, a "V"-shaped plate 902, a partition plate 903, a water tank 904, a baffle 905, a filter plate 907, a sliding door 908, a support arm 909, a motor VII 910, a gear II 911, and a rack I 912; the separation box 901 is fixed inside the box body 1, a connecting hole 9011 is provided on the side wall of the separation box 901, and a plurality of vents are provided on the top of the separation box 901; the partition plate 903 is fixed on the inner wall of the separation box 901 to separate the separation box 901 into two parts; the water tank 904 is fixed on the partition plate 903, and the water tank 905 is fixed on the filter plate 907. 04 is provided with a plurality of water inlets 9041, which are located above the "V"-shaped plate 902, and one end of the water tank 904 is connected to the water outlet pipe 3; the "V"-shaped plate 902 is provided with a plurality of uniformly fixed on the side wall of the water tank 904 and the inner wall of the separation box 901; the baffle 905 is fixed on both ends of the water tank 904 close to the connecting hole; a pair of filter plates 907 are provided, which are symmetrically fixed on the inner wall of the separation box 901, and a sewage trough 9071 is provided between the filter plates 907; a push-pull groove is provided on the connecting hole 9011 of the separation box 901, and the sliding door 908 is movably installed in the push-pull groove, The support arm 909 is fixed on the outer wall of the sliding door 908, the motor VII 910 is fixedly hung on the top of the support arm 909, the gear II 911 is connected to the output shaft of the motor VII 910, and the rack I 912 is fixed on the side wall above the connecting hole 9011 of the separation box 901; the rack I 912 is meshed and connected with the gear II 911; the motor VII 910 provides power to drive the gear II 911 to rotate, so that the gear II 911 moves along the rack I 912, thereby driving the support arm 909 and the sliding door 908 to move; when the sliding door 908 moves to one side, the partition plate 903 on one side is moved. The connecting hole 9011 of the separation box 901 is opened, and the wastewater decomposed by anaerobic bacteria enters the separation box 901 on one side of the partition plate 903 through the opened connecting hole 9011, and flows downward after being blocked by the baffle 905, while the biogas in the wastewater flows upward, so that the wastewater and biogas can be quickly separated; then the wastewater moves upward and passes through the "V"-shaped plate 902 for sedimentation, thereby separating the water and the mud, and the separated water enters the water tank 904 through the water inlet 9041, while the sludge settles downward and falls on the filter plate 907, and then enters the sewage tank 9071 for discharge.

[0055] The separation box 901 is provided with a concentration mechanism 906 inside, and the concentration mechanism 906 includes a compression plate 9061, a rotating rod 9062, an adjusting plate 9063, a motor IV 9064, a sprocket 9065, a chain 9066, a fixed plate 9067, and an electric push rod 9068; the fixed plate 9067 is fixed on the outer wall of the separation box 901, and a pair of electric push rods 9068 are respectively fixed on the side wall of the fixed plate 9067 and inside the partition plate 903, and a pair of adjusting plates 9063 are respectively connected to the corresponding electric push rods 9068. At the output end of the push rod 9068, both ends of the rotating rod 9062 pass through the limit slots 9012 and are rotatably connected to the corresponding adjustment plates 9063 respectively; the compression plate 9061 is fixed on the rotating rod 9062, and a plurality of sprocket wheels 9065 are provided at one end of the rotating rod 9062 close to the adjustment plate 9063, and adjacent sprocket wheels 9065 are meshed and connected by chains 9066; the motor IV 9064 is fixed on the adjustment plate 9063, and the output end is connected to the rotating rod 9062; the motor IV 9064 provides power to drive the rotating rod 9062 to rotate, and the rotating The movable rod 9062 drives the adjacent rotating rod 9062 to rotate through the sprocket 9065 and the chain 9066, and the rotating rod 9062 drives the compression plate 9061 to rotate, thereby adjusting the angle of the compression plate 9061; when the wastewater is precipitated, the compression plate 9061 is adjusted to a certain inclination angle with the filter plate 907, and when the wastewater flows upward through the compression plate 9061, the sludge in the wastewater contacts the inclined compression plate 9061 and is blocked, thereby separating the water from the sludge; then when there is a lot of precipitation on the filter plate 907; The electric push rod 9068 provides power to drive the adjustment plate 9063 to move, and the adjustment plate 9063 drives the rotating rod 9062 and the compression plate 9061 to move along the limiting groove 9012, driving the compression plate 9061 parallel to the filter plate 907 to move, thereby concentrating the sediment on the filter plate 907; after the concentration is completed, the compression plate 9061 is moved to a suitable position, and then the compression plate 9061 is driven to rotate by the motor IV 9064, and the sediment on the filter plate 907 is scraped to the sewage tank 9071, and finally discharged through the sewage pipe.

[0056] The stirring mechanism 8 includes a fixed shaft 801, a rotating sleeve 802, a connecting frame 803, a fixed roller 804, a hollow plate 805, a plug plate 807, a spoiler 808, a receiving plate 809, a motor III 810, and a "Z"-shaped rod 811; the receiving plate 809 is fixed on the inner wall of the box body 1, and the fixed shaft 801 is fixed on the receiving plate 809; the rotating sleeve 802 is located outside the fixed shaft 801, the connecting frame 803 is connected to the rotating sleeve 802, a bevel gear II 8021 is provided on the top of the rotating sleeve 802, a pair of fixed rollers 804 are provided, which are symmetrically fixed on the fixed shaft 801 from top to bottom, and a spiral groove 8041 is provided on the outer wall of the fixed roller 804; one end of the "Z"-shaped rod 811 is rotatably connected to the connecting frame 803, and the other end is movably connected in the spiral groove 8041; two groups are provided on the hollow plate 805, both of which are rotatably connected to the corresponding "Z"-shaped rod 811; the plug plate 8 07 is fixed on the outer wall of one group of hollow plates 805, and the spoiler 808 is connected to the outer wall of another group of hollow plates 805; the motor III 810 is fixed on the top of the box body 1, and the output end is provided with a bevel gear I 8101, and the bevel gear II 8021 is meshed and connected with the bevel gear I 8101; the motor III 810 provides power to drive the rotating sleeve 802 to rotate through the bevel gear II 8021 and the bevel gear I 8101, and the rotating sleeve 802 drives the connecting frame 803 to rotate, and the connecting frame 803 drives the hollow plate 805 to rotate, and further drives the plug plate 807 and the spoiler 808 to rotate; at the same time, it drives the "Z"-shaped rod 811 to rotate, so that one end of the "Z"-shaped rod 811 moves along the spiral groove 8041 on the surface of the fixed roller 804, and further makes the other end of the "Z"-shaped rod 811 swing, and the "Z"-shaped rod 811 drives the hollow plate 805 to swing, thereby realizing the self-rotation of the hollow plate 805.

[0057] The hollow plate 805 is provided with a fine adjustment mechanism 806 inside, and the fine adjustment mechanism 806 includes a waterproof shell 8061, a motor VIII 8062, a gear III 8063, a rack II 8064, a cam 8065, and a grid plate 8066; the grid plate 8066 is provided with a plurality of shafts that are evenly connected to the inner wall of the hollow plate 805 through rotation, the cam 8065 is connected to the shaft at one end of the grid plate 8066, the waterproof shell 8061 is fixed to one end of the hollow plate 805, the motor VIII 8062 is fixed to the top of the hollow plate 805 inside the waterproof shell 8061, and the gear III 8063 is connected to the output shaft of the motor VIII 8062 , rack II 8064 is rotatably connected to the end of cam 8065 away from grid plate 8066 through a rotating shaft, and rack II 8064 is meshingly connected to gear III 8063; motor VIII 8062 provides power to drive gear III 8063 to rotate, gear III 8063 drives rack II 8064 to move, and rack II 8064 drives grid plate 8066 to swing through cam 8065, so as to stir the anaerobic filler inside hollow plate 805, and at the same time, adjust the direction of wastewater entering hollow plate 805, thereby changing the flow direction of wastewater, and controlling the flow rate of wastewater entering hollow plate 805.

[0058] Example 2

[0059] The difference compared with Example 1 is:

[0060] 2) The wastewater in the collection pool is passed into the pH adjustment pool, the pH value of the wastewater in the pool is tested by the pH tester in the pH adjustment pool, and the pH value is adjusted to pH 4;

[0061] 3) The conditioned wastewater enters the iron-carbon reactor, where it is treated with iron-carbon micro-electrolysis for 60 minutes, and oxygen-containing gas is introduced into the reactor;

[0062] 4) The wastewater treated by the iron-carbon reactor enters the neutralization device to neutralize the wastewater and adjust the pH value of the wastewater to 8.

[0063] Example 3

[0064] The difference compared with Example 1 is:

[0065] 2) The wastewater in the collection pool is passed into the pH adjustment pool, the pH value of the wastewater in the pool is tested by the pH tester in the pH adjustment pool, and the pH value is adjusted to pH 5;

[0066] 3) The conditioned wastewater enters the iron-carbon reactor, where it is treated with iron-carbon micro-electrolysis for 70 minutes, and oxygen-containing gas is introduced into the reactor;

[0067] 4) The wastewater treated by the iron-carbon reactor enters the neutralization device to neutralize the wastewater and adjust the pH value of the wastewater to 9.

[0068] By treating the wastewater in the above-mentioned embodiment and testing the treated wastewater, the water pollutant emission limit requirements of the national standard are met.

[0069] A device for deep multi-stage treatment of industrial wastewater, the working process of which is as follows: filtered wastewater enters a neutralization bin 4 through a water inlet pipe 2, and then a neutralizing agent is introduced into the neutralization bin 4, and the wastewater and the neutralizing agent are mixed through a neutralizing mechanism 5, which can not only accelerate the neutralization rate of the wastewater, but also make the wastewater uniformly neutralized; then the neutralized wastewater is pumped to the bottom of an anaerobic bin 6 through a water distribution pipe 7, and when the wastewater flows upward through a fixed anaerobic filler, the anaerobic bacteria in the anaerobic filler decompose the organic matter in the wastewater; then the wastewater continues to flow upward, and a stirring mechanism 8 stirs the wastewater, and at the same time, the wastewater contacts the anaerobic filler in the stirring mechanism 8, so that the wastewater is subjected to secondary anaerobic treatment, so that the organic matter in the wastewater can be fully decomposed; finally, the decomposed wastewater enters a separation mechanism 9, and the separation mechanism 9 separates and discharges the biogas and sludge in the wastewater, and the clean water is discharged through a water outlet pipe 3.

[0070] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A device for deep multi-stage treatment of industrial wastewater, characterized in that The wastewater treatment process steps of the device are as follows: 1) Collect wastewater through a collection pool; 2) The wastewater in the collection pool is passed into the pH adjustment pool, the pH value of the wastewater in the pool is tested by the pH tester in the pH adjustment pool, and the pH value is adjusted to pH 3-5.5; 3) The conditioned wastewater enters the iron-carbon reactor, where it is treated with iron-carbon micro-electrolysis for a reaction time of 40-95 minutes, and oxygen-containing gas is introduced into the reactor; 4) The wastewater treated by the iron-carbon reactor enters the neutralization device to neutralize the wastewater and adjust the pH value of the wastewater to 7-9; 5) The neutralized wastewater is passed into the anaerobic device for anaerobic treatment, so that the remaining organic matter can be fully decomposed; 6) Sedimentation treatment of anaerobic wastewater in sedimentation tanks; The neutralization device in step 4) includes a box, a water inlet pipe, a neutralization chamber, a neutralization mechanism, and a partition; the partition is fixed inside the box, dividing the box into a neutralization chamber and an anaerobic chamber; the water inlet pipe is located on the side wall of the box and is connected to the neutralization chamber; the neutralization mechanism is installed in the neutralization chamber; The anaerobic device in step 5) comprises an anaerobic bin, a water distribution pipe, a stirring mechanism, a separation mechanism, and a water outlet pipe; the water distribution pipe connects the neutralization bin and the anaerobic bin, and a plurality of branch pipes are arranged on the water distribution pipe; the stirring mechanism is installed in the anaerobic bin, the separation mechanism is installed in the anaerobic bin above the stirring mechanism, and the water outlet pipe is located on the side wall of the box and connected to the anaerobic bin; The neutralization mechanism includes a mounting ring, a mounting plate, a movable plate, an intermediate plate, a transmission plate, a connecting plate, a bidirectional threaded rod, a supporting plate, a motor I, a square plate, and a motor II; the square plate is fixed on the inner wall of the box body, the mounting ring is rotatably connected to the square plate through a bearing, and a gear ring is provided on the outer wall of the mounting ring; the motor II is fixed on the square plate, and a gear I is provided on the output shaft; a pair of mounting plates are provided, which are symmetrically fixed on the inner wall of the mounting ring, and a guide groove is provided on the mounting plate; a pair of supporting plates are provided, both of which are fixed on the side walls of the box body, and a turntable is provided on the top of the supporting plate; the two ends of the bidirectional threaded rod are rotatably connected to the turntable of the supporting plate through bearings; the two ends of the movable plate are movably connected in the corresponding guide grooves, the transmission plate is connected to the bidirectional threaded rod through threads, and the two ends of the connecting plate are rotatably connected to the movable plate and the transmission plate through bearing shafts respectively; the intermediate plate is fixed on the connecting plate between the connecting plate and the transmission plate; the motor I is fixed on the turntable on the top of the supporting plate, and the output end is connected to one end of the bidirectional threaded rod.

2. The device for deep multi-stage treatment of industrial wastewater according to claim 1, characterized in that Fixed columns are arranged at both ends of the middle plate, the interior of the fixed columns is arranged to be hollow, the motor V is fixed inside the fixed columns, and the output shaft is connected with a stirring fan blade.

3. The device for deep multi-stage treatment of industrial wastewater according to claim 1, characterized in that A mixing mechanism is arranged on the mounting plate, and the mixing mechanism comprises a rotating shaft, a conical cylinder, an arc plate, an inclined plate, a motor VI, a spiral blade and a shield plate; the rotating shaft is rotatably connected to the mounting plate through a bearing, the conical cylinder is symmetrically mounted on the rotating shaft, the arc plate is evenly connected to the outer wall of the conical cylinder with the conical cylinder as the center, and the inclined plate is fixed to the inner wall of the end of the conical cylinder with a larger diameter; the spiral blade is located inside the conical cylinder and is rotatably connected to the rotating shaft; the shield plate is fixed to the end of the arc plate away from the conical cylinder; the motor VI is fixed inside the mounting plate, and the output end is connected to the rotating shaft.

4. The device for deep multi-stage treatment of industrial wastewater according to claim 1, characterized in that The separation mechanism includes a separation box, a "V"-shaped plate, a partition plate, a water tank, a baffle, a filter plate, a sliding door, a support arm, a motor VII, a gear II, and a rack I; the separation box is fixed inside the box body, a connecting hole is provided on the side wall of the separation box, and a plurality of vents are provided on the top of the separation box; the partition plate is fixed on the inner wall of the separation box to divide the separation box into two parts; the water tank is fixed on the partition plate, and a plurality of water inlets are provided on the water tank, and the water inlet is located above the "V"-shaped plate, and one end of the water tank is connected to the water outlet pipe; the "V"-shaped plate is provided with a plurality of Evenly fixed on the side wall of the water tank and the inner wall of the separation box; the baffle is fixed on the two ends of the water tank close to the connecting hole; a pair of filter plates are provided, symmetrically fixed on the inner wall of the separation box, and a sewage trough is provided between the filter plates; a push-pull groove is provided on the connecting hole of the separation box, and the sliding door is movably installed in the push-pull groove, the support arm is fixed on the outer wall of the sliding door, the motor Ⅶ is fixedly hung on the top of the support arm, the gear Ⅱ is connected to the output shaft of the motor Ⅶ, and the rack Ⅰ is fixed on the side wall above the connecting hole of the separation box; the rack Ⅰ is meshed and connected with the gear Ⅱ.

5. The device for deep multi-stage treatment of industrial wastewater according to claim 4, characterized in that A concentrating mechanism is provided inside the separation box, and the concentrating mechanism includes a compression plate, a rotating rod, an adjusting plate, a motor IV, a sprocket, a chain, a fixed plate, and an electric push rod; the fixed plate is fixed on the outer wall of the separation box, a pair of electric push rods are provided, which are respectively fixed on the side wall of the fixed plate and inside the partition plate, a pair of adjusting plates are provided, which are respectively connected to the corresponding output ends of the electric push rods, both ends of the rotating rod pass through the limiting grooves and are respectively rotatably connected to the corresponding adjusting plates, the compression plate is fixed on the rotating rod, and a plurality of sprockets are provided at one end of the rotating rod close to the adjusting plate, and adjacent sprockets are meshed and connected by chains; the motor IV is fixed on the adjusting plate, and the output end is connected to the rotating rod.

6. The device for deep multi-stage treatment of industrial wastewater according to claim 1, characterized in that The stirring mechanism comprises a fixed shaft, a rotating sleeve, a connecting frame, a fixed roller, a hollow plate, a plug plate, a spoiler, a receiving plate and a motor III; the receiving plate is fixed on the inner wall of the box body, and the fixed shaft is fixed on the receiving plate; the rotating sleeve is located outside the fixed shaft, the connecting frame is connected to the rotating sleeve, a bevel gear I is provided on the top of the rotating sleeve, a pair of fixed rollers are provided, which are symmetrically fixed on the fixed shaft up and down, and a spiral groove is provided on the outer wall of the fixed roller; one end of the "Z"-shaped rod is rotatably connected to the connecting frame, and the other end is movably connected in the spiral groove; two groups of hollow plates are provided, both of which are rotatably connected to the corresponding "Z"-shaped rods; the plug plate is fixed on the outer wall of one group of hollow plates, and the spoiler is connected to the outer wall of another group of hollow plates; the motor III is fixed on the top of the box body, and a bevel gear II is provided on the output end, and the bevel gear I and the bevel gear II are meshed and connected.

7. The device for deep multi-stage treatment of industrial wastewater according to claim 6, characterized in that A fine-tuning mechanism is provided inside the hollow plate, and the fine-tuning mechanism includes a waterproof shell, a motor VIII, a gear III, a rack II, a cam, and a grid plate; the grid plate is provided with a number of gears that are evenly connected to the inner wall of the hollow plate through a rotating shaft, the cam is connected to the rotating shaft at one end of the grid plate, the waterproof shell is fixed at one end of the hollow plate, the motor VIII is fixed at the top of the hollow plate inside the waterproof shell, the gear III is connected to the output shaft of the motor VIII, the rack II is connected to the end of the cam away from the grid plate through a rotating shaft, and the rack II is meshed with the gear III.

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