A wastewater denitrification device

Abstract

The invention discloses a wastewater denitrification device, which belongs to the technical field of wastewater treatment. The device comprises a base, on which a reaction component, a switching component and an auxiliary component are arranged. The reaction component comprises a plurality of spherical reaction chambers, which are evenly fixedly mounted on the base. By arranging a supporting circular plate, a stirring rotating plate and an arc-shaped strip plate, the reaction effect of the wastewater and the reducing agent can be greatly improved. The stirring rotating plate and the arc-shaped strip plate can also scrape the inner wall of the spherical reaction chamber and the surface of the supporting circular plate, thereby preventing the sediment from adhering to the spherical reaction chamber and the supporting circular plate. By arranging the reaction component, under the action of the plurality of spherical reaction chambers, multiple reactions of the wastewater can be achieved, thereby improving the denitrification effect of the wastewater. By cooperating with each other among the reaction component, the switching component and the auxiliary component, the continuous denitrification of the wastewater can be automatically achieved, and the reaction sediment can be effectively filtered.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a wastewater denitrification device. Background Art

[0002] Wastewater denitrification is a technology for treating high-concentration nitrogen in wastewater. Its main purpose is to reduce the pollution caused by nitrogen to the water environment. The nitrogen in wastewater mainly exists in the form of ammonia nitrogen, nitrite nitrogen and nitrate nitrogen. The existing technologies include biological denitrification, chemical reduction, molybdenum denitrification, ion exchange, adsorption, etc. The chemical reduction method is to reduce the nitrate nitrogen in the wastewater into nitrogen gas and release it into the atmosphere by adding chemical reagents. Common reducing agents include sulfite, ferrous sulfate, etc.

[0003] Although the existing denitrification device can achieve denitrification treatment of wastewater by chemical reduction, it can only perform simple stirring and mixing of the wastewater and the reducing agent. The reducing agent is easy to accumulate at the bottom of the reduction cylinder, resulting in insufficient mixing, making the denitrification effect poor, so that the treated wastewater still contains more nitrogen, and the precipitate produced after reduction is easy to adhere to the inner wall of the reduction cylinder, and the attached matter cannot be automatically cleaned. Therefore, the present invention provides a wastewater denitrification device. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a wastewater denitrification device, which overcomes the problem that the wastewater and the reducing agent can only be simply stirred and mixed, and the reducing agent is easily accumulated at the bottom of the reduction cylinder, resulting in insufficient mixing, making the denitrification effect poor, so that the treated wastewater still contains more nitrogen, and the precipitate produced after reduction is also easy to adhere to the inner wall of the reduction cylinder, and the attachment cannot be automatically cleaned.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wastewater denitrification device, comprising a base, a reaction assembly is arranged on the base, the reaction assembly comprises a plurality of spherical reaction chambers, the spherical reaction chambers are evenly fixedly mounted on the base, a supporting circular plate is rotatably mounted in each of the spherical reaction chambers, a stirring rotating plate is rotatably mounted on the supporting circular plate, an arc-shaped strip plate is fixedly arranged on the stirring rotating plate, a mounting strip plate is fixedly arranged on the supporting circular plate, a friction wheel is rotatably mounted on the mounting strip plate, a gear box and a transmission group are arranged between the stirring rotating plate and the friction wheel, a switching assembly and an auxiliary assembly are also arranged on the base, and the switching assembly comprises a rotating plate. A switching shaft is movably installed on the base, and a plurality of arc-shaped rotating plates are fixedly installed on the switching shaft. Auxiliary screen cylinders are fixedly installed at the ends of the arc-shaped rotating plates. A plurality of switching rotating plates are also rotatably installed on the switching shaft. A arc-shaped cover plate 1 and two arc-shaped cover plates 2 are fixedly installed on the switching rotating plate closest to the base. A drainage pipe is provided on the arc-shaped cover plates 2. Two arc-shaped cover plates 1 and two arc-shaped cover plates 2 are fixedly provided on the remaining switching rotating plates. When the arc-shaped cover plate 1 is joined with the arc-shaped cover plate 2 and the spherical reaction chamber, a closed chamber is formed. When the auxiliary screen cylinder is joined with the corresponding two arc-shaped cover plates 2, the joint is in a sealed state.

[0006] Furthermore, a liquid injection tube is fixedly provided on the spherical reaction chamber farthest from the base, and auxiliary tubes are fixedly provided on the spherical reaction chambers. When the friction wheel contacts the inner wall of the spherical reaction chamber, there is friction between the two. When the friction wheel contacts the inner walls of the arc cover plate 1 and the arc cover plate 2, there is friction between the two. The stirring rotating plate and the mounting strip are respectively located on both sides of the supporting circular plate, and the surface of the stirring rotating plate closest to the supporting circular plate is in contact with the supporting circular plate.

[0007] Furthermore, a transmission gear and an outer ratchet are fixedly installed on the side of the supporting circular plate, a driving gear and an inner ratchet are rotatably installed on the spherical reaction chamber, a gear ring is fixedly installed on the inner ratchet, the gear ring on the inner ratchet and the driving gear are meshed to form a gear pair, the inner ratchet and the outer ratchet form a ratchet mechanism, a transmission pulley is fixedly installed on the side of the driving gear, a supporting side plate is fixedly installed on the base, a plurality of pulleys are rotatably installed on the supporting side plate, and a transmission belt is arranged between the plurality of pulleys on the supporting side plate and the plurality of transmission pulleys.

[0008] Furthermore, the auxiliary component includes an auxiliary slide fixedly mounted on the base, an auxiliary slide seat is slidably mounted on the auxiliary slide, an auxiliary support plate is fixedly mounted on the side of the auxiliary slide, an auxiliary screw is rotatably mounted on the auxiliary slide, the auxiliary screw and the auxiliary slide constitute a spiral pair, an auxiliary rotating plate is rotatably mounted on the auxiliary slide, an auxiliary gear 1 is rotatably mounted on the auxiliary rotating plate, an auxiliary gear 2 is fixedly mounted on the side of the auxiliary gear 1, the auxiliary gear 1 and the transmission gear are engaged to form a gear pair, and the auxiliary gear 2 and the gear ring on the inner ratchet are engaged to form a gear pair.

[0009] Furthermore, the auxiliary gear 1, the transmission gear, the auxiliary gear 2, and the toothed rings on the inner ratchet are of equal size, and when the auxiliary gear 1 and the transmission gear are meshed and the auxiliary gear 2 and the toothed ring on the inner ratchet are meshed, the angular velocities of the inner ratchet and the transmission gear are the same.

[0010] Furthermore, a torsion spring is arranged between the switching long axis and the switching rotating plate, a limiting short plate is fixedly arranged at the end of the arc-shaped cover plate 2 provided on the switching rotating plate, and a limiting long plate is fixedly installed on the base, and the limiting long plate and the limiting short plate are used to limit the rotation position of the switching rotating plate.

[0011] Furthermore, the axis of the arc cover plate 2 is symmetrically arranged on both sides of the axis of the switching long axis with the axis of the arc cover plate 1, the axes of the arc cover plate 2 are on the same straight line, the axes of the arc cover plate 1 are on the same straight line, and the two arc cover plates 2 corresponding to the auxiliary screen cylinder are respectively arranged on the upper and lower surfaces of the auxiliary screen cylinder. When the auxiliary screen cylinder is engaged with the corresponding two arc cover plates 2, the axis of the arc cover plate 2 and the axis of the auxiliary screen cylinder are on the same straight line.

[0012] Furthermore, the upper end surface of the arc cover plate 2 farthest from the base on the same switching turntable is on the same plane with the upper end surface of the arc cover plate 1 farthest from the base, and the lower end surface of the arc cover plate 2 closest to the base on the same switching turntable is on the same plane with the lower end surface of the arc cover plate 1 closest to the base, and a plurality of circular cover plates are fixedly mounted on the base, and the circular cover plates are used to cover the non-working arc cover plates 1 and 2.

[0013] Furthermore, the lower end of the spherical reaction chamber farthest from the base is provided with an opening engaged with the arc cover plate 1 and the arc cover plate 2, and the upper and lower ends of the remaining spherical reaction chambers are both provided with openings engaged with the arc cover plate 1 and the arc cover plate 2.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can greatly improve the reaction effect between wastewater and reducing agent by providing a supporting circular plate, a stirring rotating plate, and an arc-shaped strip plate, and the stirring rotating plate and the arc-shaped strip plate can also scrape the inner wall of the spherical reaction chamber and the surface of the supporting circular plate, thereby preventing sediment from adhering to the spherical reaction chamber and the supporting circular plate. (2) The present invention can achieve multiple reactions of wastewater under the action of multiple spherical reaction chambers by providing a reaction component, thereby improving the denitrification effect of wastewater. (3) The present invention can automatically achieve continuous denitrification of wastewater through the mutual cooperation of the reaction component, the switching component, and the auxiliary component, and can effectively filter the reaction precipitate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2It is a structural schematic diagram of the auxiliary slide of the present invention.

[0017] Figure 3 It is a cross-sectional view of the overall structure of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the driving gear of the present invention.

[0019] Figure 5 It is a schematic structural diagram of the supporting side plate of the present invention.

[0020] Figure 6 for Figure 5 A local enlarged schematic diagram of point A in the middle.

[0021] Figure 7 for Figure 5 A local enlarged schematic diagram of point B in the middle.

[0022] Figure 8 It is a schematic diagram of the structure inside the spherical reaction chamber of the present invention.

[0023] Fig. 9 It is a structural schematic diagram of the switching plate of the present invention.

[0024] Fig.10 It is a schematic structural diagram of the supporting circular plate of the present invention.

[0025] Fig.11 It is a structural schematic diagram of the auxiliary screen cylinder of the present invention.

[0026] Reference numerals: 101-base; 102-spherical reaction chamber; 103-switching motor; 104-limiting long plate; 105-circular cover plate; 106-switching long axis; 107-transmission belt; 108-supporting circular plate; 109-limiting short plate; 110-auxiliary screw rod; 111-arc cover plate 1; 112-switching rotating plate; 113-arc cover plate 2; 114-transmission pulley; 115-driving gear; 116-inner ratchet; 117-transmission gear; 118-auxiliary slide; 119- Auxiliary support plate; 120-auxiliary slide; 121-positioning motor; 122-auxiliary rotating plate; 123-auxiliary motor; 124-auxiliary gear one; 125-auxiliary gear two; 126-support side plate; 127-drive motor; 128-external ratchet; 129-stirring rotating plate; 130-arc strip plate; 131-mounting strip plate; 132-friction wheel; 133-gear box; 134-transmission group; 135-arc rotating plate; 136-auxiliary screen drum; 137-auxiliary pipe; 138-liquid injection pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Example: Reference Figure 1-Figure 11 A wastewater denitrification device includes a base 101, on which a reaction assembly is arranged, the reaction assembly includes a plurality of spherical reaction chambers 102, the spherical reaction chambers 102 are evenly fixedly installed on the base 101, an opening is arranged at the lower end of the spherical reaction chamber 102 farthest from the base 101, and openings are arranged at the upper and lower ends of the remaining spherical reaction chambers 102, the axes of the openings of the spherical reaction chambers 102 are all on the same straight line, a supporting circular plate 108 is rotatably installed in the spherical reaction chambers 102, the axes of the openings of the spherical reaction chambers 102 are perpendicular to the axis of rotation of the supporting circular plate 108 relative to the spherical reaction chamber 102, an injection tube 138 is fixedly arranged on the spherical reaction chamber 102 farthest from the base 101, and an auxiliary tube 137 is fixedly arranged on the spherical reaction chambers 102.

[0029] A stirring rotating plate 129 is rotatably mounted on the supporting circular plate 108, an arc-shaped strip plate 130 is fixedly mounted on the stirring rotating plate 129, a mounting strip plate 131 is fixedly mounted on the supporting circular plate 108, the stirring rotating plate 129 and the mounting strip plate 131 are respectively located on both sides of the supporting circular plate 108, the surface of the stirring rotating plate 129 closest to the supporting circular plate 108 is in contact with the supporting circular plate 108, a friction wheel 132 is rotatably mounted on the mounting strip plate 131, a gear box 133 and a transmission group 134 are arranged between the stirring rotating plate 129 and the friction wheel 132, the gear box 133 is fixedly mounted on the supporting circular plate 108, the gear box 133 and the mounting strip plate 131 are located on the supporting circular plate 108, and the gear box 133 and the mounting strip plate 131 are located on the supporting circular plate 108. On the same side of the plate 108, the transmission group 134 includes two pulleys and one belt. The two pulleys in the transmission group 134 are fixedly mounted on the input shaft of the gear box 133 and the friction wheel 132, respectively. The two pulleys in the transmission group 134 are connected through the belt in the transmission group 134. The output shaft of the gear box 133 is fixedly connected to the stirring plate 129. When the friction wheel 132 contacts the inner wall of the spherical reaction chamber 102, there is friction between the two. Two bevel gears are rotatably mounted in the gear box 133. The two helical gears in the gear box 133 are meshed to form a gear pair. The two helical gears in the gear box 133 are fixedly connected to the input shaft and output shaft of the gear box 133, respectively.

[0030] A transmission gear 117 and an outer ratchet 128 are fixedly mounted on the side of the support circular plate 108, a driving gear 115 and an inner ratchet 116 are rotatably mounted on the spherical reaction chamber 102, a toothed ring is fixedly mounted on the inner ratchet 116, the toothed ring on the inner ratchet 116 and the driving gear 115 mesh to form a gear pair, the inner ratchet 116 and the outer ratchet 128 form a ratchet mechanism, a transmission pulley 114 is fixedly mounted on the side of the driving gear 115, a supporting side plate 126 is fixedly mounted on the base 101, and the supporting side plate 126 A plurality of pulleys are rotatably mounted on the support side plate 126, and the pulleys on the support side plate 126 are respectively arranged between two adjacent spherical reaction chambers 102. A transmission belt 107 is arranged between the plurality of pulleys on the support side plate 126 and the plurality of transmission pulleys 114. Under the action of the pulleys on the support side plate 126, the transmission pulley 114 and the transmission belt 107 are always in a engaged state. A driving motor 127 is fixedly mounted on the support side plate 126, and the output shaft of the driving motor 127 is fixedly connected to the corresponding transmission pulley 114.

[0031] The drive motor 127 is started to drive the corresponding drive pulley 114 to rotate. Under the action of the drive belt 107, the drive pulleys 114 rotate synchronously. Under the action of the drive gear 115, the inner ratchet 116 rotates. Since the inner ratchet 116 and the outer ratchet 128 constitute a ratchet mechanism, the outer ratchet 128 and the inner ratchet 116 rotate synchronously. If the drive motor 127 is started to drive the corresponding drive pulley 114 to rotate in the opposite direction, the outer ratchet 128 cannot rotate, and the inner ratchet 116 rotates relative to the outer ratchet 128. The rotation of the outer ratchet 128 causes the support circular plate 108 to rotate synchronously, that is, the support circular plate 108 can rotate synchronously. The supporting circular plate 108 flips inside the spherical reaction chamber 102, and the stirring rotating plate 129, the arc-shaped strip plate 130, and the friction wheel 132 rotate synchronously. In the process that the friction wheel 132 contacts the inner wall of the spherical reaction chamber 102, the friction wheel 132 rotates under the action of the friction force between the friction wheel 132 and the inner wall of the spherical reaction chamber 102, and then under the action of the gear box 133 and the transmission group 134, the stirring rotating plate 129 rotates, and the arc-shaped strip plate 130 rotates synchronously. Since the stirring rotating plate 129 is in surface contact with the supporting circular plate 108, the stirring rotating plate 129 scrapes off the attachments on the surface of the supporting circular plate 108.

[0032] An auxiliary component is provided on the base 101, and the auxiliary component includes an auxiliary slide 118 fixedly installed on the base 101, an auxiliary slide 120 is slidably installed on the auxiliary slide 118, an auxiliary support plate 119 is fixedly installed on the side of the auxiliary slide 120, an auxiliary screw rod 110 is rotatably installed on the auxiliary slide 118, the auxiliary screw rod 110 and the auxiliary slide 120 form a spiral pair, a positioning motor 121 is fixedly installed on the auxiliary slide 118, and the output shaft of the positioning motor 121 is fixedly connected to the auxiliary screw rod 110, an auxiliary rotating plate 122 is rotatably installed on the auxiliary slide 120, an auxiliary motor 123 is fixedly installed on the auxiliary slide 120, and the output shaft of the auxiliary motor 123 is fixedly connected to the auxiliary rotating plate 122.

[0033] An auxiliary gear 124 is rotatably mounted on the auxiliary rotating plate 122, and an auxiliary gear 2 125 is fixedly mounted on the side of the auxiliary gear 124. When the auxiliary gear 124 and the transmission gear 117 are engaged, a gear pair is formed. When the auxiliary gear 2 125 and the toothed ring on the inner ratchet 116 are engaged, a gear pair is formed. The toothed rings on the auxiliary gear 1, the transmission gear, the auxiliary gear 2, and the inner ratchet are equal in size. When the auxiliary gear 1 and the transmission gear are meshed and the auxiliary gear 2 and the toothed ring on the inner ratchet are meshed, the angular velocities of the inner ratchet and the transmission gear are the same.

[0034] The positioning motor 121 is started to drive the auxiliary screw 110 to rotate, so that the auxiliary slide 120 slides on the auxiliary slide 118. When the auxiliary slide 120 moves to the side of the spherical reaction chamber 102 that needs to be adjusted, the auxiliary motor 123 is started to drive the auxiliary rotating plate 122 to rotate, so that the auxiliary gear 124 is engaged with the transmission gear 117 corresponding to the spherical reaction chamber 102. At this time, the auxiliary gear 2 125 is engaged with the toothed ring on the inner ratchet 116 corresponding to the spherical reaction chamber 102. Then, the driving motor 127 is started to drive the corresponding transmission pulley 114 to rotate in the opposite direction. Under the action of the inner ratchet 116 and the outer ratchet 128, the inner ratchet 116 rotates relative to the outer ratchet 128, that is, the outer ratchet 128 does not rotate. When the auxiliary gear 124 and the transmission gear 117 to be adjusted are engaged, the inner ratchet 116 drives the auxiliary gear 2 125 to rotate, thereby causing the auxiliary gear 124 to rotate synchronously, that is, causing the transmission gear 117 to rotate. Due to the tooth ratio of the auxiliary gear 124 and the transmission gear 117 and the tooth ratio of the auxiliary gear 2 125 and the tooth ring on the inner ratchet 116, the angular velocities of the inner ratchet 116 and the transmission gear 117 are the same. Therefore, at this time, the inner ratchet 116, the transmission gear 117, and the outer ratchet 128 all rotate synchronously, that is, causing the support circular plate 108 on the spherical reaction bin 102 to rotate, while the support circular plates 108 on other spherical reaction bins 102 will not rotate.

[0035] A switching assembly is provided on the base 101, and the switching assembly includes a switching long shaft 106 rotatably mounted on the base 101, a switching motor 103 is fixedly mounted on the base 101, and the output shaft of the switching motor 103 is fixedly connected to the switching long shaft 106, a plurality of arc-shaped rotating plates 135 are fixedly mounted on the switching long shaft 106, and auxiliary screen drums 136 are fixedly mounted at the ends of the arc-shaped rotating plates 135, and a plurality of switching rotating plates 112 are also rotatably mounted on the switching long shaft 106, and a torsion spring is provided between the switching long shaft 106 and the switching rotating plate 112, one end of the torsion spring is fixedly connected to the switching long shaft 106, and the other end of the torsion spring is fixedly connected to the switching rotating plate 112.

[0036] One arc-shaped cover plate 1 111 and two arc-shaped cover plates 2 113 are fixedly provided on the switching rotating plate 112 closest to the base 101, and two arc-shaped cover plates 111 and two arc-shaped cover plates 2 113 are fixedly provided on the other switching rotating plates 112. Each arc-shaped cover plate 2 113 is provided with a drainage pipe. The upper end surface of the arc-shaped cover plate 2 113 farthest from the base 101 on the same switching rotating plate 112 is in the same plane as the upper end surface of the arc-shaped cover plate 1 111 farthest from the base 101, and the lower end surface of the arc-shaped cover plate 2 113 closest to the base 101 on the same switching rotating plate 112 is in the same plane as the lower end surface of the arc-shaped cover plate 1 111 closest to the base 101.

[0037] The axis of the arc cover plate 113 and the axis of the arc cover plate 111 are symmetrically arranged on both sides of the axis of the switching shaft 106, and the axes of the arc cover plate 113 and the axes of the arc cover plate 111 are both in the same straight line. The two arc cover plates 113 corresponding to the auxiliary screen drum 136 are respectively arranged on the upper and lower surfaces of the auxiliary screen drum 136. When the auxiliary screen drum 136 is engaged with the corresponding two arc cover plates 113, the axis of the arc cover plate 113 and the axis of the auxiliary screen drum 136 are in the same straight line. When the auxiliary screen drum 136 is engaged with the corresponding two arc cover plates 113, the joint is in a sealed state.

[0038] A limiting short plate 109 is fixedly arranged at the end of the arc-shaped cover plate 2 113 on the switching rotating plate 112, and a limiting long plate 104 is fixedly installed on the base 101. The limiting long plate 104 and the limiting short plate 109 are used to limit the rotation position of the switching rotating plate 112. A plurality of circular covering plates 105 are also fixedly installed on the base 101. The circular covering plates 105 are used to cover the arc-shaped cover plate 1 111 and the arc-shaped cover plate 2 113 that are not in operation.

[0039] The end face of the lower opening of the spherical reaction chamber 102 farthest from the base 101 and the upper end face of the arc cover plate 1 111 farthest from the base 101 are on the same plane, and the upper and lower opening end faces of the remaining spherical reaction chambers 102 are respectively on the same plane with the end faces of the corresponding arc cover plate 1 111 and arc cover plate 2 113, and a closed chamber is formed when the arc cover plate 1 111 is joined with the arc cover plate 2 113 and the spherical reaction chamber 102.

[0040] When the arc cover plate 1 111 and the spherical reaction chamber 102 are joined, a closed spherical chamber is formed. When the arc cover plate 2 113 and the spherical reaction chamber 102 are joined, a closed spherical chamber is also formed. When the friction wheel 132 contacts the inner walls of the arc cover plate 1 111 and the arc cover plate 2 113, friction exists between the two.

[0041] In the initial position, the arc-shaped cover plate 111 is respectively engaged with the openings on the corresponding spherical reaction chamber 102, so that a closed spherical chamber is formed inside the spherical reaction chamber 102. At this time, the torsion spring between the switching rotating plate 112 and the switching long axis 106 is not compressed, and the limiting short plate 109 contacts the limiting long plate 104.

[0042] When it is necessary to switch the arc cover plate 1 111 and the arc cover plate 2 113, the driving motor 127 is first started to drive the supporting circular plate 108 to rotate, so that the ends of the supporting circular plate 108 and the friction wheel 132 are both located on the inner side of the opening of the spherical reaction chamber 102, thereby making way for the switching of the arc cover plate 1 111 and the arc cover plate 2 113, and then the switching motor 103 is started to drive the switching long shaft 106 to rotate. Under the action of the torsion spring between the switching long shaft 106 and the switching rotating plate 112, the switching The rotating plate 112 rotates synchronously, and the limiting short plate 109 moves away from the limiting long plate 104, and finally the switching long axis 106 and the switching rotating plate 112 rotate synchronously by 180 degrees, so that the arc cover plate 1 111 falls off and engages with the spherical reaction chamber 102, and the arc cover plate 1 111 moves to the covering position of the corresponding circular cover plate 105, and the arc cover plate 2 113 moves to engage with the opening of the corresponding spherical reaction chamber 102, and then the driving motor 127 is started to drive the support The circular plate 108 rotates, so that the liquid on the supporting circular plate 108 flows out along the discharge pipe of the arc-shaped cover plate 113. After the discharge is completed, the switching motor 103 is started to drive the switching long shaft 106 to rotate in the opposite direction, so that the arc-shaped cover plate 111 and the arc-shaped cover plate 113 return to the initial position, that is, the arc-shaped cover plate 111 and the spherical reaction chamber 102 are engaged, and the arc-shaped cover plate 113 moves to the covering position of the corresponding circular cover plate 105. At this time, the short limit plate 109 contacts the long limit plate 109. 4. Continue to drive the switching long shaft 106 to rotate. Since the limiting long plate 104 contacts the limiting short plate 109 and cannot move further, that is, the switching rotating plate 112 cannot move further. The switching long shaft 106 continues to rotate, and the torsion spring between the switching long shaft 106 and the switching rotating plate 112 is compressed. The arc-shaped rotating plate 135 rotates relative to the switching rotating plate 112, that is, the auxiliary screen drum 136 rotates relative to the arc-shaped cover plate 113, and the auxiliary screen drum 136 moves to the outside of the arc-shaped cover plate 113.

[0043] Working principle: In the initial position, the arc cover plate 111 and the spherical reaction chamber 102 are in a connected state, and the drive motor 127 is started to drive the support circular plate 108 to rotate, so that the stirring rotating plate 129 and the arc strip plate 130 on the support circular plate 108 are in a vertical upward state, and a certain amount of wastewater to be treated is injected into the chamber formed between the upper surface of the support circular plate 108 and the spherical reaction chamber 102 through the injection pipe 138 on the spherical reaction chamber 102 farthest from the base 101, and then a certain amount of reducing agent is injected into the chamber through the auxiliary pipe 137. After the injection is completed, the drive motor 127 is started to drive the support circular plate 108 to rotate, so that the support circular plate 108 The liquid in the chamber between the spherical reaction chamber 102 is stirred in the spherical reaction chamber 102, and the friction wheel 132 rotates under the action of the arc cover plate 111 and the supporting circular plate 108, and then under the action of the gear box 133 and the transmission group 134, the stirring rotating plate 129 and the arc strip plate 130 stir the liquid in the chamber between the supporting circular plate 108 and the spherical reaction chamber 102, thereby increasing the reaction speed of the reducing agent and the wastewater, and the stirring rotating plate 129 scrapes the surface of the supporting circular plate 108, and the supporting circular plate 108 scrapes the inner wall of the spherical reaction chamber 102, thereby avoiding precipitation accumulation on the surface of the supporting circular plate 108 and the inner wall of the spherical reaction chamber 102.

[0044] After the reaction of the spherical reaction chamber 102 farthest from the base 101 is completed, the driving motor 127 is started to drive the supporting circular plate 108 to rotate, so that the outer ratchet 128, the stirring rotating plate 129, and the arc strip plate 130 are located on the inner side of the opening of the spherical reaction chamber 102, the supporting circular plate 108 and the liquid in the chamber of the spherical reaction chamber 102 are located above the supporting circular plate 108, and the stirring rotating plate 129 and the arc strip plate 130 on the supporting circular plate 108 in the spherical reaction chamber 102 below the spherical reaction chamber 102 farthest from the base 101 are located above the supporting circular plate 108, and then the switching motor 103 is started to drive the switching long shaft 106 to rotate, so that the arc cover plate 111, the cutting plate 112 and the cutting plate 113 are located above the supporting circular plate 108. The switching plate 112 and the arc-shaped cover plate 113 rotate synchronously, so that the positions of the arc-shaped cover plate 111 and the arc-shaped cover plate 113 are switched, so that the arc-shaped cover plate 113 and the corresponding spherical reaction chamber 102 are engaged, and then the positioning motor 121 is started to drive the auxiliary slide 120 to move to the side of the spherical reaction chamber 102 farthest from the base 101, and then the auxiliary motor 123 is started to drive the auxiliary rotating plate 122 to rotate, so that the auxiliary gear 124 is engaged with the transmission gear 117 corresponding to the spherical reaction chamber 102 farthest from the base 101, and the auxiliary gear 2 125 is engaged with the gear on the inner ratchet 116 corresponding to the spherical reaction chamber 102 farthest from the base 101. The drive motor 127 is then started to drive the inner ratchet 116 to rotate in the opposite direction, that is, the inner ratchet 116 rotates relative to the outer ratchet 128, so that the outer ratchet 128 except the outer ratchet 128 corresponding to the spherical reaction chamber 102 farthest from the base 101 does not rotate. Under the action of the auxiliary gear 124 and the auxiliary gear 2 125, the inner ratchet 116 and the outer ratchet 128 corresponding to the spherical reaction chamber 102 farthest from the base 101 rotate synchronously, that is, the supporting circular plate 108 in the spherical reaction chamber 102 rotates, and the liquid on the supporting circular plate 108 falls into the opposite direction along the drain pipe on the arc-shaped cover plate 2 113 engaged below the spherical reaction chamber 102. The auxiliary sieve cylinder 136 is connected to the spherical reaction chamber 102, and the sediment in the liquid is removed under the action of the auxiliary sieve cylinder 136, and the remaining liquid falls onto the supporting circular plate 108 below along the drain pipe on the arc cover plate 2 113 on the spherical reaction chamber 102 below the spherical reaction chamber 102 farthest from the base 101, that is, the waste water after the reaction in the spherical reaction chamber 102 farthest from the base 101 is injected into the spherical reaction chamber 102 farthest from the base 101, and then the switching long shaft 106 is driven to rotate so that the arc cover plate 1 111 and the arc cover plate 2 113 return to their initial positions, and the various components in the spherical reaction chamber 102 farthest from the base 101 return to their initial positions.

[0045] Then, new wastewater is re-injected into the spherical reaction chamber 102 farthest from the base 101, and then the reducing agent is added into the above two spherical reaction chambers 102 through the auxiliary pipe 137, and then the driving motor 127 is started to stir the wastewater and the reducing agent in the above two spherical reaction chambers 102 to accelerate the reaction. After the wastewater reaction in the above two spherical reaction chambers 102 is completed, the above steps are repeated to first inject the wastewater in the spherical reaction chamber 102 farthest from the base 101 into the spherical reaction chamber 102 farthest from the base 101. At this time, the wastewater in the spherical reaction chamber 102 farthest from the base 101 is not The spherical reaction chamber 102 farthest from the base 101 will move, and after all the waste water in the spherical reaction chamber 102 farthest from the base 101 is injected into the spherical reaction chamber 102 farthest from the base 101, the various components in the spherical reaction chamber 102 farthest from the base 101 return to their initial positions, and then the waste water in the spherical reaction chamber 102 farthest from the base 101 is injected into the spherical reaction chamber 102 farthest from the base 101. The components in the reaction chamber 102 return to their initial positions, and new wastewater is injected into the spherical reaction chamber 102 farthest from the base 101 again, and then the reducing agent is injected into the corresponding spherical reaction chamber 102 through the auxiliary pipe 137 on each spherical reaction chamber 102, and then the driving motor 127 is started to stir the wastewater and reducing agent in the above three spherical reaction chambers 102 to accelerate the reaction. The above steps can be repeated to sequentially inject the wastewater into the spherical reaction chambers 102 from top to bottom, and finally the wastewater is injected into the spherical reaction chamber 102 closest to the base 101, and the spherical reaction chamber closest to the base 101 is further injected into the spherical reaction chamber 102. A collecting cylinder is arranged below 102. After the reaction of the wastewater in the spherical reaction chamber 102 which is closest to the base 101 is completed, the above steps are repeated so that the arc-shaped cover plate 113 which is closest to 101 is engaged with the lower end of the spherical reaction chamber 102, and the inner ratchet 116 and the outer ratchet 128 corresponding to the spherical reaction chamber 102 are rotated synchronously, and then the driving motor 127 is started so that the wastewater falls into the collecting cylinder below after the reaction in the spherical reaction chamber 102 which is closest to 101 is completed. The above steps can be repeated to realize denitrification of the wastewater, and the nitrogen generated in the reaction is discharged into the atmosphere through the auxiliary pipe 137.

[0046] Under the action of the auxiliary component, when the driving motor 127 drives the inner ratchet 116 and the outer ratchet 128 corresponding to a certain spherical reaction bin 102 to rotate synchronously, the supporting circular plates 108 in the other spherical reaction bins 102 will not rotate, that is, when the wastewater in a certain spherical reaction bin 102 is discharged, the wastewater in the other spherical reaction bins 102 will not move, thereby realizing the separate control of the wastewater discharge of the spherical reaction bins 102. When the limiting short plate 109 and the limiting long plate 104 are in contact, the switching motor 103 is started to continue to drive the switching long axis 106 to rotate, so that the auxiliary screen drum 136 moves to the outside of the arc cover plate 113, and then the positioning motor 121 is started to drive the auxiliary slide 120 to move, and the auxiliary support plate 119 moves synchronously, so that it is convenient for the staff to stand on the auxiliary support plate 119 to clean the sediment in the auxiliary screen drum 136 to avoid blockage of the auxiliary screen drum 136.

[0047] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by technicians in the relevant technical field based on the above-mentioned conception without creative work all fall within the protection scope of the present invention.

Claims

1. A wastewater denitrification device, comprising a base (101), characterized in that: The base (101) is provided with a reaction assembly, which comprises a plurality of spherical reaction chambers (102). The spherical reaction chambers (102) are evenly fixedly mounted on the base (101). A supporting circular plate (108) is rotatably mounted in each of the spherical reaction chambers (102). A stirring rotating plate (129) is rotatably mounted on the supporting circular plate (108). An arc-shaped strip plate (130) is fixedly mounted on the stirring rotating plate (129). A mounting strip plate (131) is fixedly mounted on the supporting circular plate (108). A friction wheel (132) is rotatably mounted on the mounting strip plate (131). A gear box (133) and a transmission group (134) are arranged between the stirring rotating plate (129) and the friction wheel (132). The transmission group (134) is connected to an input shaft of the gear box (133), and an output shaft of the gear box (133) is fixedly connected to the stirring rotating plate (129). The base (101) is also provided with a switching assembly and an auxiliary assembly. The switching assembly includes a switching long shaft (106) rotatably mounted on the base (101). A plurality of arc-shaped rotating plates (135) are fixedly mounted on the switching long shaft (106). Auxiliary screen drums (136) are fixedly mounted at the ends of the arc-shaped rotating plates (135). A plurality of switching rotating plates (112) are also rotatably mounted on the switching long shaft (106). An arc-shaped rotating plate (112) closest to the base (101) is fixedly mounted. The first arc cover plate (111) and two second arc cover plates (113) are provided with a liquid discharge pipe, and the remaining switching rotating plates (112) are fixedly provided with two first arc cover plates (111) and two second arc cover plates (113). When the first arc cover plate (111) is joined with the second arc cover plate (113) and the spherical reaction chamber (102), a closed chamber is formed. When the auxiliary screen cylinder (136) is joined with the corresponding two second arc cover plates (113), the joint is in a sealed state. When the friction wheel (132) contacts the inner wall of the spherical reaction chamber (102), there is friction between the two. When the friction wheel (132) contacts the inner walls of the arc-shaped cover plate 1 (111) and the arc-shaped cover plate 2 (113), there is friction between the two. The stirring rotating plate (129) and the mounting strip plate (131) are respectively located on both sides of the supporting circular plate (108). The surface of the stirring rotating plate (129) closest to the supporting circular plate (108) contacts the supporting circular plate (108). A transmission gear (117) and an outer ratchet (128) are fixedly mounted on the side of the support circular plate (108); a driving gear (115) and an inner ratchet (116) are rotatably mounted on the spherical reaction chamber (102); a toothed ring is fixedly mounted on the inner ratchet (116); the toothed ring on the inner ratchet (116) and the driving gear (115) mesh with each other to form a gear pair; the inner ratchet (116) and the outer ratchet (128) form a ratchet mechanism; a transmission pulley (114) is fixedly mounted on the side of the driving gear (115); a support side plate (126) is fixedly mounted on the base (101); a plurality of pulleys are rotatably mounted on the support side plate (126); a transmission belt (107) is arranged between the plurality of pulleys on the support side plate (126) and the plurality of transmission pulleys (114); The auxiliary assembly comprises an auxiliary slide (118) fixedly mounted on the base (101), an auxiliary slide seat (120) being slidably mounted on the auxiliary slide (118), an auxiliary support plate (119) being fixedly mounted on the side of the auxiliary slide seat (120), an auxiliary screw rod (110) being rotatably mounted on the auxiliary slide (118), the auxiliary screw rod (110) and the auxiliary slide seat (120) forming a spiral pair, an auxiliary rotating plate (122) being rotatably mounted on the auxiliary slide seat (120), an auxiliary gear 1 (124) being rotatably mounted on the auxiliary rotating plate (122), an auxiliary gear 2 (125) being fixedly mounted on the side of the auxiliary gear 1 (124), the auxiliary gear 1 (124) forming a gear pair when engaging with the transmission gear (117), and the auxiliary gear 2 (125) forming a gear pair when engaging with the toothed ring on the inner ratchet (116); The gear rings on the auxiliary gear 1 (124), the transmission gear (117), the auxiliary gear 2 (125) and the inner ratchet (116) are of equal size. When the auxiliary gear 1 (124) and the transmission gear (117) are meshed and the gear rings on the auxiliary gear 2 (125) and the inner ratchet (116) are meshed, the angular velocities of the inner ratchet (116) and the transmission gear (117) are the same.

2. A wastewater denitrification device according to claim 1, characterized in that: A liquid injection tube (138) is fixedly arranged on the spherical reaction chamber (102) farthest from the base (101), and an auxiliary tube (137) is fixedly arranged on each of the spherical reaction chambers (102).

3. A wastewater denitrification device according to claim 2, characterized in that: A torsion spring is arranged between the switching long shaft (106) and the switching rotating plate (112); a limiting short plate (109) is fixedly arranged at the end of the arc-shaped cover plate 2 (113) arranged on the switching rotating plate (112); a limiting long plate (104) is fixedly installed on the base (101); the limiting long plate (104) and the limiting short plate (109) are used to limit the rotation position of the switching rotating plate (112).

4. A wastewater denitrification device according to claim 3, characterized in that: The axis of the arc cover plate 2 (113) and the axis of the arc cover plate 1 (111) are symmetrically arranged on both sides of the axis of the switching long axis (106); the axes of the arc cover plate 2 (113) are both on the same straight line; the axes of the arc cover plate 1 (111) are both on the same straight line; the two arc cover plates 2 (113) corresponding to the auxiliary screen cylinder (136) are respectively arranged on the upper and lower surfaces of the auxiliary screen cylinder (136); when the auxiliary screen cylinder (136) is engaged with the corresponding two arc cover plates 2 (113), the axes of the arc cover plate 2 (113) and the axes of the auxiliary screen cylinder (136) are on the same straight line.

5. A wastewater denitrification device according to claim 4, characterized in that: The upper end surface of the arc-shaped cover plate 2 (113) on the same switching rotating plate (112) which is farthest from the base (101) is on the same plane as the upper end surface of the arc-shaped cover plate 1 (111) which is farthest from the base (101); the lower end surface of the arc-shaped cover plate 2 (113) on the same switching rotating plate (112) which is closest to the base (101) is on the same plane as the lower end surface of the arc-shaped cover plate 1 (111) which is closest to the base (101); and a plurality of circular cover plates (105) are fixedly mounted on the base (101), and the circular cover plates (105) are used to cover the arc-shaped cover plate 1 (111) and the arc-shaped cover plate 2 (113) which are not in operation.

6. A wastewater denitrification device according to claim 5, characterized in that: The lower end of the spherical reaction chamber (102) farthest from the base (101) is provided with an opening for engaging with the arc-shaped cover plate 1 (111) and the arc-shaped cover plate 2 (113), and the upper ends and lower ends of the remaining spherical reaction chambers (102) are both provided with openings for engaging with the arc-shaped cover plate 1 (111) and the arc-shaped cover plate 2 (113).

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