Chemical high-concentration organic wastewater treatment device

Abstract

The invention discloses a chemical high-concentration organic wastewater treatment device, and relates to the technical field of wastewater treatment, the chemical high-concentration organic wastewater treatment device comprises an EIC reactor main body, the EIC reactor main body is internally provided with a water distribution zone, a reaction zone, a separation zone and a biogas collection zone from bottom to top, and the water distribution zone is internally provided with a lower spiral water distribution group and an upper spiral water distribution group from bottom to top; the supporting column, the lower spiral water distribution group and the upper spiral water distribution group are jointly provided with a water distribution mechanism, and an opening and closing mechanism for controlling the lower spiral water distribution group to deflect is arranged on the inner bottom wall of the EIC reactor main body. The lower spiral water distribution group and the upper spiral water distribution group are matched in a guiding manner, so that inlet water can be uniformly and stably distributed, and the situation that the contact time of wastewater and sludge is relatively short and the wastewater and the sludge cannot fully participate in a reaction due to overlarge impact load, overhigh ascending velocity and rushing out of the sludge is avoided; through blocking of the fan-shaped blades of the lower spiral water distribution group and the upper spiral water distribution group and the V-shaped dirt baffle, the situation that a water outlet head is blocked by sinking sludge can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to a device for treating high-concentration organic wastewater from a chemical industry. Background Art

[0002] High-concentration organic wastewater containing aldehydes is one of the common high-concentration organic wastewaters in the chemical industry. High-concentration organic wastewater containing aldehydes has a high content of organic matter such as crotonaldehyde and crotonaldehyde polymers, which are toxic and difficult to degrade. Direct entry into the biochemical system will result in biological toxicity that is difficult to degrade. Multi-scale synergistic catalytic wet oxidation technology can be used to efficiently oxidize and degrade such organic matter. The treatment steps are usually as follows: after the raw water is homogenized in the regulating reservoir, it is pumped into the wet oxidation reactor, and the effluent from the wet oxidation reaction is pumped into the EIC reactor. Under anaerobic conditions, the microorganisms in the reactor significantly degrade the organic matter, and the effluent is pumped into the high-efficiency microbial reactor for further treatment, and then separated in the secondary sedimentation tank. The sludge is returned to the front end of the reactor, and the final supernatant can meet the takeover standard requirements.

[0003] In the process of treating wastewater in the EIC reactor, the treatment steps are usually: wastewater entering the water distribution mechanism, biodegradation, gas-solid-liquid separation, biogas emission and internal circulation, etc. Common water distribution mechanisms include multi-point water distribution mechanisms and three-dimensional spiral water distribution mechanisms. Among them, the multi-point water distribution mechanism pumps out the wastewater at multiple points through multiple nozzles laid at the bottom of the equipment, and the three-dimensional spiral water distribution mechanism allows the wastewater to enter the reaction zone through the gap openings between multiple spirally distributed plates.

[0004] However, the outlet head of the multi-point water distribution mechanism is easily clogged by the sunken sludge. After long-term use, when the water distribution outlet head needs to be backwashed, the settled sludge will affect the backwashing operation and aggravate the blockage of the outlet head. The wastewater sprayed from the outlet head directly impacts the sludge layer above, which can easily lead to excessive impact load, excessive rising flow rate, and sludge being flushed out, which in turn leads to a short contact time between the wastewater and the sludge and inability to fully participate in the reaction; secondly, the water distribution uniformity of the single three-dimensional spiral plate group needs to be improved. After long-term use between two adjacent plates, entanglement of fiber materials, deposition of inorganic particles, excessive growth of biofilm, etc. will cause blockage between the two plates, affecting the diversion effect and causing some sludge beds to become compacted.

[0005] Therefore, in order to prevent the water distribution mechanism from being blocked and to improve the uniformity of water distribution, the present invention provides a chemical high-concentration organic wastewater treatment device. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems existing in the prior art and to propose a chemical high-concentration organic wastewater treatment device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A chemical high-concentration organic wastewater treatment device includes an EIC reactor body. The interior of the EIC reactor body is provided with a water distribution area, a reaction area, a separation area, and a biogas collection area from bottom to top. A support column is fixedly connected to the middle of the inner bottom wall of the EIC reactor body, and a vertically upward water distribution pipe is installed at the lower part of the support column. A lower spiral water distribution group and an upper spiral water distribution group are provided from bottom to top in the water distribution area. The lower spiral water distribution group and the upper spiral water distribution group are both composed of a plurality of inclined fan-shaped blades distributed circumferentially, and the projections of two adjacent fan-shaped blades in the vertical direction partially overlap.

[0008] The support column, the lower spiral water distribution group and the upper spiral water distribution group are jointly provided with a water distribution mechanism. Part of the preliminarily treated wastewater separated in the separation zone flows back to the water distribution zone through the circulation pipe. The inner bottom wall of the EIC reactor body is provided with an opening and closing mechanism for controlling the deflection of the lower spiral water distribution group.

[0009] The water distribution mechanism includes a support platform symmetrically arranged on the support column, the lower spiral water distribution group and the upper spiral water distribution group are provided with a water distribution component for evenly distributing water and an anti-clogging scraper for cleaning, the support platform is provided with a driving component for driving the anti-clogging scraper to move, and the lower driving component is provided with an alternating component, and the driving component and the alternating component cooperate to ensure that the anti-clogging scraper can perform anti-clogging operations when the water flow is small.

[0010] In the above-mentioned chemical high-concentration organic wastewater treatment device, the side wall of the EIC reactor body is provided with a plurality of sewage pipes arranged between the lower spiral water distribution group and the upper spiral water distribution group. The fan-shaped blades of the lower spiral water distribution group are inclined downward, and the fan-shaped blades of the upper spiral water distribution group are inclined upward. The fan-shaped blades of the lower spiral water distribution group are rotatably connected to the inner wall of the EIC reactor body and the outer wall of the support column, and the fan-shaped blades of the upper spiral water distribution group are fixedly connected to the inner wall of the EIC reactor body and the outer wall of the support column.

[0011] In the above-mentioned chemical high-concentration organic wastewater treatment device, the water distribution assembly includes a V-shaped dirt baffle, and the bottom wall of the fan-shaped blade is evenly fixedly connected with multiple V-shaped dirt baffles distributed along its radial direction, and the bottom wall of the fan-shaped blade is installed with a water outlet head arranged in the opening of the V-shaped dirt baffle, and the multiple water outlet heads are connected by connecting pipes.

[0012] In the above-mentioned chemical high-concentration organic wastewater treatment device, the bottom wall of the fan-shaped blade is radially slidably connected to an anti-clogging scraper rod arranged on one side of the opening of the V-shaped dirt baffle, and the anti-clogging scraper rod is composed of a connecting rod 1 that is slidably connected to the bottom wall of the fan-shaped blade and a plurality of scraper rods fixed on the side of the connecting rod 1 away from the V-shaped dirt baffle, and the length of the scraper rod corresponds to the arc length of the corresponding position of the fan-shaped blade.

[0013] In the above-mentioned chemical high-concentration organic wastewater treatment device, the driving assembly includes a fixed box, and a plurality of fixed boxes corresponding to the fan-shaped blades of the lower spiral water distribution group and the upper spiral water distribution group are fixed circumferentially inside the support platform. The fixed box consists of a water inlet chamber, a transposition chamber and a driving chamber.

[0014] In the above-mentioned chemical high-concentration organic wastewater treatment device, multiple branch outlets are provided at the top of the water distribution pipe, and the ends of the branch outlets are connected to multiple water inlet branches connected to the top wall of the water inlet chamber on the lower side, and the bottom wall of the water inlet chamber is installed with a water outlet pipe connected to the connecting pipe.

[0015] In the above-mentioned chemical high-concentration organic wastewater treatment device, a paddle wheel is rotatably connected inside the water inlet chamber, and the paddle wheel is coaxially fixedly connected to a gear set in the transposition chamber and a cam set in the drive chamber. The outer wall of the cam is provided with a rectangular frame radially slidably connected to the inner wall of the drive chamber, and the top wall of the rectangular frame is connected to the corresponding anti-blocking scraper rod through a connecting rod.

[0016] In the above-mentioned chemical high-concentration organic wastewater treatment device, the alternating component includes impeller 2, and the impeller 2 arranged side by side with impeller 1 is rotatably connected inside the lower water inlet chamber, and impeller 2 is coaxially fixedly connected to gear 2 arranged in the lower transposition chamber, and gear 2 is meshed with gear 1, and the diameter of gear 2 is larger than that of gear 1. The shafts of gear 1 and gear 2 are jointly rotatably connected with a support frame, the support frame is slidably connected in the lower transposition chamber, and the side wall of the support column is installed with a hydraulic cylinder with an output end fixedly connected to the side wall of the support frame.

[0017] In the above-mentioned chemical high-concentration organic wastewater treatment device, the circulation pipe is vertically downward, and the bottom end of the circulation pipe is installed on the upper part of the support column. The bottom end of the circulation pipe is provided with multiple branch outlets, and the ends of the branch outlets are connected to the corresponding water inlet branches on the top wall of the upper water inlet chamber.

[0018] In the above-mentioned chemical high-concentration organic wastewater treatment device, the opening and closing mechanism includes a non-closed annular water inlet pipe installed on the bottom wall of the EIC reactor body, and the top wall of the annular water inlet pipe is slidably connected to a plurality of upper and lower sliding seats corresponding to the fan-shaped blades of the lower spiral water distribution group. The top walls of the upper and lower sliding seats are connected to the bottom walls of the fan-shaped blades of the lower spiral water distribution group through connecting rings. The interior of the annular water inlet pipe is hinged with a disc baffle corresponding to the upper and lower sliding seats, and the bottom wall of the disc baffle is connected to the bottom wall of the upper and lower sliding seats through a hinge.

[0019] Compared with the existing technology, the advantages of the present invention are: 1. The guiding coordination of the lower spiral water distribution group and the upper spiral water distribution group can evenly and stably distribute the incoming water, avoid excessive impact load, excessive rising flow rate, sludge being washed out, and then cause the wastewater and sludge to have a short contact time and cannot fully participate in the reaction. The lower spiral water distribution group and the upper spiral water distribution group can reduce the situation where sludge is deposited at the bottom of the EIC reactor body; at the same time, the disc baffle is driven by the water inlet, and the upper and lower sliding seats pull the corresponding fan-shaped blade deflection angle of the lower spiral water distribution group, so that during the continuous water inflow process, the fan-shaped blades of the two adjacent lower spiral water distribution groups maintain a certain distance, ensuring stable water distribution.

[0020] 2. The fan-shaped blades and V-shaped dirt baffles of the lower spiral water distribution group and the upper spiral water distribution group can reduce the blockage of the water outlet head by the sinking sludge; furthermore, the impeller is driven by the water inlet to drive the anti-blocking scraper to scrape back and forth on the bottom wall of the corresponding lower spiral water distribution group and the upper spiral water distribution group, so as to scrape away the impurities between the two adjacent fan-shaped blades, avoid the entanglement of fiber materials, the deposition of inorganic particles, the excessive growth of biofilm, etc., which may cause blockage between the two fan-shaped blades and affect the diversion effect.

[0021] 3. Through the cooperation of the driving assembly and the alternating assembly, the positions of the impeller 1 and gear 1 change with those of the impeller 2 and gear 2, ensuring that the anti-clogging scraper can smoothly perform the anti-clogging operation when the water flow is small. At the same time, the fan-shaped blades of the lower spiral water distribution group are no longer pulled by the upper and lower sliding seats. The overlapping fan-shaped blades of the lower spiral water distribution group can effectively prevent the sludge from settling to the bottom of the EIC reactor body when the outlet head is backwashed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 A schematic diagram of the overall structure.

[0023] Figure 2 This is a schematic diagram of the partial cross-sectional structure of the EIC reactor body.

[0024] Figure 3 It is a schematic diagram of the structure of the lower spiral water distribution group and the upper spiral water distribution group.

[0025] Figure 4 It is a partial structural diagram of the water distribution mechanism and the opening and closing mechanism.

[0026] Figure 5 This is a partial structural diagram of the water distribution mechanism.

[0027] Figure 6 This is a schematic diagram of the structure of the upper spiral water distribution group viewed from above.

[0028] Figure 7It is a partial structural diagram of the driving component and the alternating component.

[0029] Figure 8 It is a schematic diagram of the partial top view of the driving component and the alternating component.

[0030] Figure 9 It is a structural schematic diagram of the disc baffle before and after flipping.

[0031] Figure 10 This is a structural diagram of the support column, water distribution pipes and circulation pipes.

[0032] Figure 11 This is a structural schematic diagram of the fan-shaped blade gap of the lower spiral water distribution group before and after the change.

[0033] Figure 12 Schematic diagram of the internal structure of the EIC reactor body.

[0034] In the figure: 1. EIC reactor body; 2. Support column; 21. Water distribution pipe; 3. Lower spiral water distribution group; 4. Upper spiral water distribution group; 5. Water distribution mechanism; 51. Support platform; 52. Water distribution assembly; 521. V-shaped dirt baffle; 522. Water outlet head; 523. Connecting pipe; 53. Anti-clogging scraper; 54. Drive assembly; 541. Fixing box; 542. Water inlet branch pipe; 543. Water outlet pipe; 544. Impeller 1; 545. Gear 1; 546. Cam; 547. Rectangular frame; 55. Alternating assembly; 551. Gear 2; 552. Impeller 2; 553. Support frame; 554. Hydraulic cylinder; 6. Circulation pipe; 7. Opening and closing mechanism; 71. Annular water inlet pipe; 72. Upper and lower sliding seats; 73. Connecting ring; 74. Hinge; 75. Disc baffle. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 12A chemical high-concentration organic wastewater treatment device includes an EIC reactor body 1. The interior of the EIC reactor body 1 is provided with a water distribution area, a reaction area, a separation area, and a biogas collection area from bottom to top (this is the existing technology and will not be described in detail here). A support column 2 is fixedly connected to the middle of the inner bottom wall of the EIC reactor body 1. A vertical upward water distribution pipe 21 is installed at the lower part of the support column 2. A lower spiral water distribution group 3 and an upper spiral water distribution group 4 are provided in the water distribution area from bottom to top; a plurality of spiral water distribution groups 3 and 4 are provided on the side wall of the EIC reactor body 1. The sewage pipe between the upper spiral water distribution group 4, the lower spiral water distribution group 3 and the upper spiral water distribution group 4 are all composed of multiple inclined fan-shaped blades distributed circumferentially, and the projections of two adjacent fan-shaped blades in the vertical direction partially overlap. The fan-shaped blades of the lower spiral water distribution group 3 are inclined downward, and the fan-shaped blades of the upper spiral water distribution group 4 are inclined upward. The fan-shaped blades of the lower spiral water distribution group 3 are rotatably connected to the inner wall of the EIC reactor body 1 and the outer wall of the support column 2, and the fan-shaped blades of the upper spiral water distribution group 4 are fixedly connected to the inner wall of the EIC reactor body 1 and the outer wall of the support column 2.

[0037] A water distribution mechanism 5 is commonly provided on the support column 2, the lower spiral water distribution group 3 and the upper spiral water distribution group 4. Part of the preliminarily treated wastewater separated in the separation zone flows back to the water distribution area through the circulation pipe 6. The inner bottom wall of the EIC reactor body 1 is provided with an opening and closing mechanism 7 for controlling the deflection of the lower spiral water distribution group 3.

[0038] Wastewater is pumped into the opening and closing mechanism 7 and the water distribution pipe 21 installed in the support column 2 by a water pump. The wastewater in the lower spiral water distribution group 3, the upper spiral water distribution group 4 and the water distribution mechanism 5 evenly enters the water distribution area at the bottom of the EIC reactor body 1. The continuous inflow of water lifts the wastewater in the lower layer upward to the reaction area. When passing through the granular sludge layer in the reaction area, the organic matter in the wastewater is decomposed by microorganisms to produce biogas. The biogas forms bubbles and rises, driving some sludge particles to move upward, realizing gas-solid-liquid three-phase separation in the separation area. The gas is collected and utilized or treated in the biogas collection area, and the sludge returns to the reaction area to maintain the biomass of the system. Part of the preliminarily treated wastewater flows back to the water distribution area through the circulation pipe 6 and mixes with the newly entered wastewater, increasing the chance of contact between wastewater and microorganisms.

[0039] Reference Figures 3 to 6 The water distribution mechanism 5 includes a support platform 51 symmetrically arranged on the support column 2. The lower spiral water distribution group 3 and the upper spiral water distribution group 4 are provided with a water distribution component 52 for evenly distributing water and an anti-clogging scraper 53 for cleaning. A driving component 54 for driving the anti-clogging scraper 53 to move is provided on the support platform 51, and an alternating component 55 is provided on the lower driving component 54. The driving component 54 and the alternating component 55 cooperate to ensure that the anti-clogging scraper 53 can perform anti-clogging operations when the water flow is small.

[0040] Reference Figures 4 to 6 The water distribution assembly 52 includes a V-shaped dirt baffle 521, and the bottom wall of the fan-shaped blade is evenly fixedly connected with multiple V-shaped dirt baffles 521 distributed along its radial direction. The bottom wall of the fan-shaped blade is installed with a water outlet head 522 arranged in the opening of the V-shaped dirt baffle 521, and the multiple water outlet heads 522 are connected by a connecting pipe 523; the bottom wall of the fan-shaped blade is radially slidably connected with an anti-clogging scraper 53 arranged on one side of the opening of the V-shaped dirt baffle 521. The anti-clogging scraper 53 consists of a connecting rod 1 that is slidably connected to the bottom wall of the fan blade and multiple scraping rods fixed on the side of the connecting rod 1 away from the V-shaped dirt baffle 521. The length of the scraper rod corresponds to the arc length of the corresponding position of the fan blade.

[0041] Reference Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 10 The driving assembly 54 includes a fixed box 541. A plurality of fixed boxes 541 corresponding to the fan-shaped blades of the lower spiral water distribution group 3 and the upper spiral water distribution group 4 are fixedly installed in the circumferential direction of the support platform 51. The fixed box 541 consists of a water inlet chamber, a transposition chamber and a driving chamber. A plurality of branch outlets are provided at the top of the water distribution pipe 21. The ends of the branch outlets are connected to a plurality of water inlet branch pipes 542 connected to the top wall of the water inlet chamber on the lower side. A water outlet pipe 543 connected to the connecting pipe 523 is installed on the bottom wall of the water inlet chamber. A paddle wheel 544 is rotatably connected inside the water inlet chamber. The impeller 544 is coaxially fixedly connected to a gear 545 set in the transposition chamber and a cam 546 set in the driving chamber. The outer wall of the cam 546 is provided with a rectangular frame 547 radially slidingly connected to the inner wall of the driving chamber. The top wall of the rectangular frame 547 is connected to the corresponding anti-clogging scraper 53 through a connecting rod 2; the circulation pipe 6 is vertical downward, and the bottom end of the circulation pipe 6 is installed on the upper part of the support column 2. The bottom end of the circulation pipe 6 is provided with multiple branch outlets, and the ends of the branch outlets are connected to the corresponding water inlet branch pipes 542 on the top wall of the upper water inlet chamber.

[0042] Reference Figure 5 、 Figure 7 、 Figure 8 and Figure 10 The alternating component 55 includes an impeller 2 552, which is rotatably connected to the lower water inlet chamber and arranged side by side with the impeller 1 544. The impeller 2 552 is coaxially fixedly connected to a gear 2 551 arranged in the lower transposition chamber. The gear 2 551 is meshed with the gear 1 545. The diameter of the gear 2 551 is larger than that of the gear 1 545. The shafts of the gear 1 545 and the gear 2 551 are jointly rotatably connected with a support frame 553. The support frame 553 is slidably connected to the lower transposition chamber. The side wall of the support column 2 is installed with a hydraulic cylinder 554 whose output end is fixedly connected to the side wall of the support frame 553.

[0043] Part of the wastewater enters the water distribution pipe 21, and the water distribution pipe 21 enters the corresponding water inlet branch pipe 542 on the lower spiral water distribution group 3 through the branch outlet. At the same time, part of the preliminarily treated wastewater flows downward back to the water distribution area through the circulation pipe 6, and the wastewater inside the circulation pipe 6 flows downward through the branch outlet and enters the corresponding water inlet branch pipe 542 on the upper spiral water distribution group 4.

[0044] The water inlet branch pipe 542 guides the wastewater into the water inlet cavity of the fixed box 541, and then passes through the water outlet pipe 543 and the connecting pipe 523. The wastewater is finally discharged into the EIC reactor body 1 through multiple water outlet heads 522. The wastewater sprayed from the lower water outlet head 522 flows upward under the guidance of the fan-shaped blades of the lower spiral water distribution group 3. The wastewater sprayed from the upper water outlet head 522 drives the wastewater in the lower layer to flow upward under the guidance of the fan-shaped blades of the upper spiral water distribution group 4. The cooperation between the lower spiral water distribution group 3 and the upper spiral water distribution group 4 can evenly and stably distribute the wastewater. The water is distributed to avoid excessive impact load and excessive rising flow rate, which may cause the sludge to be flushed out, resulting in a short contact time between the wastewater and the sludge and the inability to fully participate in the reaction. The lower spiral water distribution group 3 and the upper spiral water distribution group 4 can reduce the sludge from settling at the bottom of the EIC reactor body 1; the water outlet head 522 is arranged below the fan-shaped blades of the lower spiral water distribution group 3 and the upper spiral water distribution group 4, and at the same time, the V-shaped dirt baffle 521 is used to protect the water outlet head 522, which can reduce the situation where the water outlet head 522 is blocked by the sinking sludge.

[0045] When wastewater flows into the water inlet chamber of the fixed box 541, it impacts the impeller 544. The rotation of the impeller 544 drives the gear 545 and the cam 546 to rotate. The rotation of the cam 546 drives the rectangular frame 547 to slide radially back and forth in the driving chamber. The rectangular frame 547 drives the anti-blocking scraper 53 through the connecting rod 2 to scrape back and forth on the bottom walls of the corresponding lower spiral water distribution group 3 and upper spiral water distribution group 4, scraping away impurities between the two adjacent fan-shaped blades to avoid entanglement of fiber-like substances, deposition of inorganic particles, excessive growth of biofilm, etc., which may cause blockage between the two fan-shaped blades and affect the diversion effect.

[0046] Reference Figure 3 、 Figure 4 and Figure 9 The opening and closing mechanism 7 includes an annular water inlet pipe 71 installed on the bottom wall of the EIC reactor body 1 in a non-closed shape. The top wall of the annular water inlet pipe 71 is slidably connected to a plurality of upper and lower sliding seats 72 corresponding to the fan-shaped blades of the lower spiral water distribution group 3. The top walls of the upper and lower sliding seats 72 are hinged to the bottom walls of the fan-shaped blades of the lower spiral water distribution group 3 through connecting rings 73. The inside of the annular water inlet pipe 71 is hinged with a disc baffle 75 corresponding to the upper and lower sliding seats 72. The bottom wall of the disc baffle 75 is connected to the bottom wall of the upper and lower sliding seats 72 through a hinge 74.

[0047] When the wastewater inside the annular water inlet pipe 71 circulates in a circular manner, the water flow pushes the disc baffle 75 to flip over, and the disc baffle 75 changes from an initial vertical state to a relatively horizontal state. The flipping of the disc baffle 75 drives the upper and lower sliding seats 72 to slide toward the inside of the annular water inlet pipe 71 through the traction of the hinge 74. The upper and lower sliding seats 72 pull the corresponding fan-shaped blades of the lower spiral water distribution group 3 through the connecting ring 73. The upper ends of the fan-shaped blades of the lower spiral water distribution group 3 rotate on the outer wall of the support column 2, and the lower ends rotate on the inner wall of the EIC reactor body 1. The upper and lower sliding seats 72 pull the corresponding fan-shaped blades of the lower spiral water distribution group 3 to deflect the angle so that in the process of continuous water inflow, the fan-shaped blades of the two adjacent lower spiral water distribution groups 3 maintain a certain distance to ensure stable water inflow distribution.

[0048] During use, it is often necessary to adjust the water inlet flow rate according to actual needs. When the flow rate of wastewater entering the lower water inlet branch pipe 542 gradually decreases, the output end of the hydraulic cylinder 554 retracts to drive the support frame 553 to slide, and the support frame 553 drives gear 1 545 and impeller 1 544 to move away from the initial position, and gear 2 551 and impeller 2 552 move to the initial position of gear 1 545 and impeller 1 544. At this time, the wastewater guided by the water inlet branch pipe 542 impacts impeller 2 552.

[0049] The wastewater guided by the water inlet branch pipe 542 impacts the impeller 2 552, and the impeller 2 552 rotates, driving the gear 2 551 to rotate, and the gear 1 545 is driven to rotate through the gear 2 551 to increase the speed of the output shaft gear 1 545. The rotation speed of the gear 1 545 directly affects the frequency and effect of the rectangular frame 547 pushing the anti-clogging scraper 53 to scrape impurities. Driving the gear 1 545 to rotate through the gear 2 551 can prevent the speed of the impeller 1 544 and the support frame 553 from decreasing due to the slowdown of the wastewater flow rate, which in turn causes the frequency of the rectangular frame 547 pushing the anti-clogging scraper 53 to decrease, and the scraping effect of the anti-clogging scraper 53 to deteriorate.

[0050] When the outlet head 522 needs to be backwashed, in order to prevent the sludge from settling to the bottom of the EIC reactor body 1 and affecting the backwashing effect, the flow rate of the wastewater entering the annular water inlet pipe 71 needs to be reduced until the wastewater is stopped. The impact force of the water flow on the disc baffle 75 is weakened, and the disc baffle 75 is reset from a relatively horizontal state to an initial vertical state. The traction force of the hinge 74 on the upper and lower sliding seats 72 is reduced, and the upper and lower sliding seats 72 move up and reset, driving the fan-shaped blades of the lower spiral water distribution group 3 to deflect and reset, and the fan-shaped blades of the two adjacent lower spiral water distribution groups 3 gradually partially fit together (such as Figure 11 As shown), the sludge on the upper part is prevented from settling to the bottom of the EIC reactor body 1.

[0051] Reference Figures 1-12The specific operating steps of this chemical high-concentration organic wastewater treatment device are as follows: Part of the wastewater enters the water distribution pipe 21 and enters the corresponding water inlet branch 542 on the lower spiral water distribution group 3 through the branch outlet. At the same time, the wastewater inside the circulation pipe 6 enters the corresponding water inlet branch 542 on the upper spiral water distribution group 4 through the branch outlet. The wastewater is finally discharged into the EIC reactor body 1 through multiple water outlet heads 522. The lower spiral water distribution group 3 and the upper spiral water distribution group 4 guide and cooperate to evenly and stably distribute the incoming water.

[0052] When the wastewater flows into the water inlet chamber of the fixed box 541, the impeller 544 rotates to drive the anti-clogging scraper 53 to scrape back and forth on the bottom walls of the corresponding lower spiral water distribution group 3 and upper spiral water distribution group 4 to scrape away impurities between the two adjacent fan-shaped blades.

[0053] The continuous inflow of water lifts the wastewater from the lower layer upward to the reaction zone. When passing through the granular sludge layer in the reaction zone, the organic matter in the wastewater is decomposed by microorganisms to produce biogas. The biogas forms bubbles and rises, driving some sludge particles to move upward. The three-phase separation of gas, solid and liquid is realized in the separation zone. The gas is collected and utilized or processed in the biogas collection area, and the sludge returns to the reaction zone to maintain the biomass of the system. Part of the preliminarily treated wastewater flows back to the water distribution area through the circulation pipe 6.

[0054] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A chemical high-concentration organic wastewater treatment device, comprising an EIC reactor body, characterized in that: The interior of the EIC reactor body is provided with a water distribution area, a reaction area, a separation area, and a biogas collection area from bottom to top, and a support column is fixedly connected to the middle of the inner bottom wall of the EIC reactor body, and a water distribution pipe is fixedly connected to the support column. The water distribution area is provided with a lower spiral water distribution group and an upper spiral water distribution group from bottom to top. The lower spiral water distribution group and the upper spiral water distribution group are both composed of a plurality of inclined fan-shaped blades distributed circumferentially, and the projections of two adjacent fan-shaped blades in the vertical direction partially overlap; The support column, the lower spiral water distribution group and the upper spiral water distribution group are jointly provided with a water distribution mechanism. Part of the preliminarily treated wastewater separated in the separation zone flows back to the water distribution zone through the circulation pipe. The inner bottom wall of the EIC reactor body is provided with an opening and closing mechanism for controlling the deflection of the lower spiral water distribution group. The water distribution mechanism includes a support platform symmetrically arranged on the support column, the lower spiral water distribution group and the upper spiral water distribution group are provided with a water distribution component for evenly distributing water and an anti-clogging scraper for cleaning, the support platform is provided with a driving component for driving the anti-clogging scraper to move, and the lower driving component is provided with an alternating component, and the driving component and the alternating component cooperate to ensure that the anti-clogging scraper can perform anti-clogging operations when the water flow is small.

2. A chemical high-concentration organic wastewater treatment device according to claim 1, characterized in that: The side wall of the EIC reactor body is provided with a plurality of sewage pipes located between the lower spiral water distribution group and the upper spiral water distribution group. The fan-shaped blades of the lower spiral water distribution group are inclined downward, and the fan-shaped blades of the upper spiral water distribution group are inclined upward. The fan-shaped blades of the lower spiral water distribution group are rotatably connected to the inner wall of the EIC reactor body and the outer wall of the support column, and the fan-shaped blades of the upper spiral water distribution group are fixedly connected to the inner wall of the EIC reactor body and the outer wall of the support column.

3. A chemical high-concentration organic wastewater treatment device according to claim 1, characterized in that: The water distribution assembly includes a V-shaped dirt baffle, and the bottom wall of the fan-shaped blade is evenly fixedly connected with multiple V-shaped dirt baffles distributed along its radial direction. The bottom wall of the fan-shaped blade is installed with a water outlet head arranged in the opening of the V-shaped dirt baffle, and the multiple water outlet heads are connected by a connecting pipe.

4. A chemical high-concentration organic wastewater treatment device according to claim 3, characterized in that: The bottom wall of the fan-shaped blade is radially slidably connected to an anti-clogging scraper arranged on one side of the opening of the V-shaped dirt baffle, and the anti-clogging scraper is composed of a connecting rod 1 that is slidably connected to the bottom wall of the fan-shaped blade and a plurality of scraper rods fixed on the side of the connecting rod 1 away from the V-shaped dirt baffle, and the length of the scraper rod corresponds to the arc length of the corresponding position of the fan-shaped blade.

5. A chemical high-concentration organic wastewater treatment device according to claim 1, characterized in that: The driving assembly includes a fixed box, and a plurality of fixed boxes corresponding to the fan-shaped blades of the lower spiral water distribution group and the upper spiral water distribution group are fixed circumferentially inside the support platform. The fixed box consists of a water inlet cavity, a transposition cavity and a driving cavity.

6. A chemical high-concentration organic wastewater treatment device according to claim 3, characterized in that: The top of the water distribution pipe is provided with multiple branch outlets, the ends of the branch outlets are connected to multiple water inlet branch pipes connected to the top wall of the water inlet cavity on the lower side, and the bottom wall of the water inlet cavity is installed with a water outlet pipe connected to the connecting pipe.

7. A chemical high-concentration organic wastewater treatment device according to claim 5, characterized in that: A paddle wheel 1 is rotatably connected inside the water inlet chamber, and the paddle wheel is coaxially fixedly connected to a gear 1 arranged in the transposition chamber and a cam arranged in the driving chamber. The outer wall of the cam is sleeved with a rectangular frame radially slidably connected to the inner wall of the driving chamber, and the top wall of the rectangular frame is connected to the corresponding anti-blocking scraper rod through a connecting rod 2.

8. A chemical high-concentration organic wastewater treatment device according to claim 7, characterized in that: The alternating component includes impeller 2, and impeller 2 arranged side by side with impeller 1 is rotatably connected inside the lower water inlet chamber, impeller 2 is coaxially fixedly connected to gear 2 arranged in the lower transposition chamber, and gear 2 is meshed with gear 1, the diameter of gear 2 is larger than that of gear 1, and a support frame is rotatably connected to the shafts of gear 1 and gear 2, the support frame is slidably connected to the lower transposition chamber, and the side wall of the support column is installed with a hydraulic cylinder with an output end fixedly connected to the side wall of the support frame.

9. A chemical high-concentration organic wastewater treatment device according to claim 6, characterized in that: The circulation pipe is vertical downward, and the bottom end of the circulation pipe is installed on the upper part of the support column. The bottom end of the circulation pipe is provided with multiple branch outlets, and the ends of the branch outlets are connected to the corresponding water inlet branches on the top wall of the upper water inlet cavity.

10. A chemical high-concentration organic wastewater treatment device according to claim 1, characterized in that: The opening and closing mechanism includes an annular water inlet pipe installed in a non-closed shape on the bottom wall of the EIC reactor body, and the top wall of the annular water inlet pipe is slidably connected to a plurality of upper and lower sliding seats corresponding to the fan-shaped blades of the lower spiral water distribution group. The top walls of the upper and lower sliding seats are connected to the bottom walls of the fan-shaped blades of the lower spiral water distribution group through connecting rings. A disc baffle corresponding to the upper and lower sliding seats is hinged inside the annular water inlet pipe, and the bottom wall of the disc baffle is connected to the bottom wall of the upper and lower sliding seats through a hinge.

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