A biological denitrification device for chemical wastewater

Abstract

The present invention discloses a biological denitrification device for chemical wastewater, and relates to the technical field of chemical wastewater. The present invention comprises a support frame, a denitrification barrel is arranged at the center of the top of the support frame, and an annular limit groove is arranged at the bottom of the inner wall of the denitrification barrel, a drain pipe is arranged at the bottom of the denitrification barrel, a control component is arranged at the top of the denitrification barrel, a water guide pipe is arranged inside the control component, the bottom of the water guide pipe runs through the inside of the denitrification barrel, two liquid injection ports are arranged at the top of the denitrification barrel, the two liquid injection ports are symmetrically distributed about the axis of the denitrification barrel, and a curved base is fixedly installed at the bottom of the inner wall of the denitrification barrel. The present invention prompts the partition filter plate to block and separate large mud blocks or impurities in the wastewater, and during the up and down movement of the partition filter plate, small mud blocks are prompted to fall quickly and be denitrified synchronously with the wastewater, effectively preventing the nitrogen in the large sludge from being difficult to discharge, resulting in poor denitrification of the wastewater by heterotrophic denitrifying bacteria and direct discharge to cause environmental pollution.

Description

Technical Field

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

[0002] Chemical wastewater refers to process wastewater, cooling water, exhaust gas washing water, equipment and site flushing water and other wastewater discharged in chemical production. Chemical wastewater often contains a large amount of organic nitrogen, which will cause different properties and degrees of pollution in the water body, so it cannot be discharged directly.

[0003] Patent announcement number CN221370823U discloses a biological denitrification device for chemical wastewater, which relates to the technical field of chemical wastewater treatment, including an interception mechanism, which includes an interception frame, an interception component is fixed at the bottom position of the inner cavity of the interception frame, a net component extending to the inner cavity of the interception frame is installed on the outer wall of one side of the interception frame, a cleaning component extending to the inner cavity of the interception frame is fixed on the front side wall of the interception frame, and a first water body transfer component is fixed on the bottom wall of one side of the inner cavity of the interception frame; a denitrification mechanism, which includes a denitrification tank; the patent injects chemical wastewater into the inner cavity of the interception frame through the top position of the interception frame, and the insoluble matter in the chemical wastewater can be automatically intercepted under the filtration of the interception component. The filtered water body is injected and transferred to the inner cavity of the denitrification tank by starting the first water body transfer component, and good biofilm conditions are provided for microorganisms under the action of biological denitrification fillers, so that the concentration of anaerobic microorganisms is high, which is conducive to the proliferation of heterotrophic denitrifying bacteria in wastewater and improves the biological treatment efficiency.

[0004] However, the device still has some shortcomings: the device can use heterotrophic denitrifying bacteria to improve the biological denitrification efficiency of wastewater, but in the process of biological denitrification, the sewage is affected by large pieces of sludge or other impurities, which will reduce the denitrification efficiency of heterotrophic denitrifying bacteria in the wastewater, and the efficiency of biofilm formation on nitrogen in the wastewater is reduced. As a result, harmful substances in the wastewater are difficult to completely remove, and direct discharge is likely to cause environmental pollution. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a biological denitrification device for chemical wastewater, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a biological denitrification device for chemical wastewater, comprising a support frame, a denitrification barrel is arranged at the center of the top of the support frame, and an annular limiting groove is arranged at the bottom of the inner wall of the denitrification barrel, a drain pipe is arranged at the bottom of the denitrification barrel, a control component is arranged at the top of the denitrification barrel, a water guide pipe is arranged inside the control component, and the bottom of the water guide pipe runs through the inside of the denitrification barrel, two liquid injection ports are arranged on the top of the denitrification barrel, and the two liquid injection ports are symmetrically distributed about the axis of the denitrification barrel, and a curved base is fixedly installed at the bottom of the inner wall of the denitrification barrel, and the curved base is set high on the left and low on the right. The arc surface base is designed, and a slide groove is provided on the top of the arc surface base, a heterotrophic denitrification component is fixedly installed inside the arc surface base, an electric circular slide rail is fixedly installed on the top of the inner wall of the denitrification barrel, a telescopic rod is slidably installed inside the electric circular slide rail, the bottom of the telescopic end of the telescopic rod is slidably installed inside the slide groove of the arc surface base, a partition filter plate is penetrated and fixedly installed on the outer wall of the telescopic end of the telescopic rod, the outer wall of the partition filter plate is in contact with the inner wall of the denitrification barrel, a plurality of telescopic spoilers are equidistantly and fixedly installed on the bottom of the partition filter plate, a transmission wheel is rotatably installed on the side of the telescopic spoiler close to the inner wall of the heterotrophic denitrification component, and the transmission wheel is away from the heterotrophic denitrification component. A reciprocating screw is fixedly installed on one side of the inner wall of the component, and a concentric ring is threadedly connected to the outer wall of the end of the reciprocating screw away from the transmission wheel. A transmission plate is hinged on the side of the concentric ring close to the telescopic spoiler. A grooved telescopic plate is fixedly installed on the outer wall of the telescopic spoiler. After aeration in the wastewater tank, the chemical wastewater is transported to the inside of the denitrification barrel through the water pipe with the help of an external water delivery component. At this time, the control component controls the injection amount of wastewater to avoid overflow. While transporting the wastewater, disinfectant water is injected into the denitrification barrel through the injection port. The wastewater after denitrification is discharged through the drain pipe and transported to the next treatment process through an external pipeline; the wastewater is injected into the denitrification barrel After the interior, start the electric circular slide and heterotrophic denitrification component. After the heterotrophic denitrification component is started, the concentration of anaerobic microorganisms in the denitrification barrel is increased through the denitrification filler, providing good conditions for microbial biofilm. At this time, the microorganisms convert the ammonia nitrogen and organic nitrogen in the sewage into nitrogen gas. The electric circular slide drives the fixed end of the telescopic rod to make a revolution and slide inside itself, and the bottom of the telescopic end of the telescopic rod slides along the arc groove at the top of the arc base. At this time, the telescopic end of the telescopic rod uses the design of the arc base with high left and low right to make the telescopic end of the telescopic rod realize reciprocating telescopic motion during the sliding process. At this time, the telescopic end of the telescopic rod drives the partition filter plate to slide up and down along the inner wall of the denitrification barrel;When the partition filter plate moves up and down, it drives the telescopic end of the telescopic spoiler to extend and reset back and forth, and when the partition filter plate revolves, the telescopic spoiler drives the transmission wheel to revolve along the bottom of the inner wall of the denitrification barrel to generate friction. When the transmission wheel rotates by friction, it drives the reciprocating screw to rotate. When the reciprocating screw rotates, the reciprocating spiral groove on the outer wall restricts the inner wall of the concentric ring, prompting the reciprocating screw to rotate and drive the concentric ring to slide and reset in the direction close to the telescopic spoiler. The concentric ring drives the transmission plate to move synchronously. When the transmission plate moves in the direction close to the telescopic spoiler, it contacts the telescopic end of the groove telescopic plate. At this time, the transmission plate hinge shaft starts to rotate and pushes the telescopic end of the groove telescopic plate to start extending. ;

[0007] According to the above technical solution, the bottoms of the fixed ends of several telescopic spoilers are slidably installed inside the annular limiting groove at the bottom of the inner wall of the denitrification barrel, and the telescopic end of the telescopic spoiler is designed as a hollow inclined surface. The outer wall of the reciprocating screw rod movably passes through the interior of the fixed end of the telescopic spoiler. The outer wall of the telescopic end of the grooved telescopic plate is hinged to the side of the transmission plate close to the telescopic spoiler. A decomposition device for stirring and dispersing large pieces of mud is provided above the partition filter plate.

[0008] According to the above technical solution, the decomposition device includes a conical vertical plate, a heating component, a fixed rod, a spiral decomposition sheet and an anti-skid wheel. The bottom of the conical vertical plate is fixedly installed at the center of the top of the partition filter plate. The inner wall of the heating component is rotatably installed inside the circular groove of the conical vertical plate. The fixed rod is rotatably installed at one end close to the center of the partition filter plate on the outer wall of the heating component. A spiral decomposition sheet is fixedly installed on the outer wall of the fixed rod. The anti-skid wheel penetrates inside and is fixedly installed on the outer wall of the fixed rod. When the wastewater carries sludge from the water pipe into the denitrification barrel, the wastewater falls toward the conical vertical plate, and the conical vertical plate moves up and down through the partition filter plate. The conical vertical plate guides the falling wastewater through its own arc surface. At this time, the wastewater passes through the water pipe. The water guided by the conical vertical plate is dispersed around the partition filter plate, and the heating component is started at the same time. The heat emitted by the heating component heats up the inside of the denitrification barrel, and the heat makes the heterotrophic denitrification bacteria more active. At the same time, the fixed rod is limited by the telescopic limit plate. At this time, the partition filter plate drives the conical vertical plate to rotate while the fixed rod remains stationary. The fixed rod causes the heating component to be stationary. When the partition filter plate revolves, its top contacts the outer wall of the anti-skid wheel to generate friction. At this time, the anti-skid wheel rotates through the friction force, driving the fixed rod to rotate along the outer wall of the heating component. The fixed rod drives the spiral decomposition sheet to rotate. At the same time, the conical vertical plate drives the heating component to reciprocate up and down through the circular groove, thereby causing the anti-skid wheel to always contact the top of the partition filter plate.

[0009] According to the above technical solution, the top of the conical vertical plate faces the bottom of the water pipe, a circular groove is provided on the outer wall of the conical vertical plate, the outer wall of the anti-skid wheel contacts the top surface of the partition filter plate, and an anti-magnetic device is provided above the spiral decomposition plate for collecting magnetic chips carried in large pieces of soil.

[0010] According to the above technical scheme, the decomposition device also includes a telescopic limit plate and a scraper plate. The top of the fixed end of the telescopic limit plate is fixedly installed on the top of the inner wall of the denitrification barrel, the outer wall of the movable fixing rod inside the telescopic end of the telescopic limit plate, and the scraper plate is fixedly installed on the outer wall of the telescopic end of the telescopic limit plate away from the center of the partition filter plate. The scraper plate is close to the center of the partition filter plate and contacts the outer wall of the conical vertical plate. When the fixed rod reciprocates up and down, it pulls the telescopic end of the telescopic limit plate to move synchronously, and the telescopic end of the telescopic limit plate drives the scraper plate to move synchronously, so that the scraper plate is always close to the outer wall of the conical vertical plate.

[0011] According to the above technical scheme, the anti-magnetic device includes an L-shaped plate, a sliding plate, a rotating rod and several rotating plates. The bottom of the L-shaped plate is fixedly installed on the outer wall of the telescopic end of the telescopic limit plate near the conical vertical plate, and the sliding plate is fixedly installed on the inner wall of the L-shaped plate away from the telescopic limit plate. The top of the rotating rod is rotatably installed on the top of the inner wall of the denitrification barrel. Several rotating plates are equidistant and fixedly installed above the outer wall of the rotating rod. The telescopic end of the telescopic limit plate drives the L-shaped plate to move up and down, and the L-shaped plate drives the sliding plate to move synchronously. When the sliding plate slides downward along the outer wall of the spiral groove of the rotating rod, the restriction of the spiral groove of the outer wall of the rotating rod by the inner wall of the sliding plate causes the rotating rod to generate a rotational force. At the same time, with the help of the limitation of the rotating rod on the denitrification barrel, the top of the rotating rod rotates along the top of the inner wall of the denitrification barrel, and the rotating rod drives the rotating plate to rotate, and the rotating plate performs rotational disturbance on the disinfectant water falling from the injection port.

[0012] According to the above technical solution, the L-shaped plate is located outside the telescopic limiting plate, and a square groove is opened at the bottom of the L-shaped plate, a spiral groove is opened on the outer wall of the rotating rod, and the inner wall of the sliding plate and the spiral groove on the outer wall of the rotating rod are threadedly connected.

[0013] According to the above technical solution, the anti-magnetic device also includes an L-shaped rod, a resistance plate, a magnetic plate and a reset plate, the top of the L-shaped rod is fixedly installed on the outer wall of the fixed end of the telescopic limit plate near one side of the conical vertical plate, the bottom of the L-shaped rod passes through the square groove of the L-shaped plate, the top of the resistance plate is fixedly installed on the bottom of the L-shaped rod, the top of the magnetic plate is hinged at the bottom edge of the L-shaped plate, the magnetic plate is located above the spiral decomposition plate, the inner wall of the magnetic plate contacts the outer wall of the resistance plate, and the reset plate is fixedly installed between the outer wall of the magnetic plate and the outer wall of the L-shaped plate. When the L-shaped plate moves downward, the fixed end of the telescopic limit plate limits the L-shaped rod to cause the L-shaped rod to remain stationary, and the L-shaped rod causes the resistance plate to remain stationary. At this time, when the L-shaped plate drives the magnetic plate to move downward, the inner wall of the magnetic plate contacts the outer wall of the resistance plate to generate a resistance force, and the resistance force causes the hinge axis of the magnetic plate to start rotating. At this time, the magnetic plate swings with the hinge axis as the axis toward the axis direction close to the bottom of the L-shaped plate, and the magnetic plate pulls the reset plate to deform synchronously, and then the magnetic plate is reset by the elastic force of the reset plate and reciprocates.

[0014] The present invention provides a biological denitrification device for chemical wastewater. It has the following beneficial effects:

[0015] (1) The present invention cooperates with the arc base, heterotrophic denitrification component, electric circular slide rail, telescopic rod, partition filter plate, telescopic spoiler, transmission wheel, reciprocating screw rod, concentric ring, transmission plate and groove telescopic plate to enable the partition filter plate to block and separate large mud blocks or impurities in the wastewater, and promotes the small mud blocks to fall quickly and denitrify the wastewater synchronously during the up and down movement of the partition filter plate, effectively preventing the nitrogen in the large mud blocks from being difficult to discharge, resulting in poor denitrification of the wastewater by heterotrophic denitrifying bacteria and direct discharge to cause environmental pollution; and the telescopic spoiler revolves and reciprocates to stir the wastewater, while the groove telescopic plate disturbs the denitrification filler emitted by the heterotrophic denitrification component by the revolution of the telescopic spoiler plate and its own reciprocating extension, thereby ensuring that the denitrification filler is evenly distributed inside the denitrification barrel and further improving the denitrification effect of the denitrification filler on the wastewater.

[0016] (2) The present invention, through the arrangement of a decomposition device, cooperates with a partition filter plate, a conical vertical plate, a heating assembly, a fixing rod, a spiral decomposition plate, an anti-skid wheel, a telescopic limit plate and a scraper plate, so that the spiral decomposition plate decomposes and crushes large lumps of soil during the self-rotation and revolution of the partition filter plate, and causes the decomposed lumps of soil to be evenly distributed on the top of the partition filter plate, thereby improving the overall denitrification effect of heterotrophic denitrification bacteria on wastewater and causing the decomposed lumps of soil to fall rapidly during the reciprocating up and down movement of the partition filter plate; at the same time, the scraper plate is used to scrape off the mud or dirt remaining on the outer wall of the conical vertical plate, thereby ensuring the cleanliness of the outer wall of the conical vertical plate and preventing the outer wall of the conical vertical plate from corrosion, and at the same time, the up and down movement of the scraper plate effectively prevents dirt from adhering to its own outer wall.

[0017] (3) The present invention provides an anti-magnetic device, and cooperates with a telescopic limit plate, an L-shaped plate, a sliding plate, a rotating rod, a rotating plate, an L-shaped rod, a contact plate, a magnetic plate and a reset plate to ensure that the disinfectant water is evenly dispersed into the denitrification barrel by the rotating disturbance of the rotating plate when it falls, so as to evenly disinfect the harmful components in the wastewater. At the same time, the rotating plate disturbs the water flow around the injection port to prevent wastewater or harmful components from pouring into the injection port and causing pollution. At the same time, the magnetic plate is enabled to swing slightly back and forth above the spiral decomposition plate, and the magnetic impurities or fine debris that float upward under the buoyancy of the water after the spiral decomposition plate decomposes the mud blocks is swung and adsorbed. The magnetic impurities are collected in a centralized manner by the magnetic plate to prevent the magnetic substances from being scattered around with the water flow, which increases the wear on the equipment and the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the present invention as a whole;

[0019] Figure 2 It is a cross-sectional schematic diagram of the present invention as a whole;

[0020] Figure 3This is a schematic diagram of the peripheral structure of the arc surface base of the present invention;

[0021] Figure 4 It is a cross-sectional schematic diagram of the peripheral structure of the arc surface base of the present invention;

[0022] Figure 5 It is a schematic diagram of the peripheral structure of the telescopic spoiler of the present invention;

[0023] Figure 6 It is a schematic diagram of the decomposition device of the present invention;

[0024] Figure 7 This is a schematic diagram of the disassembly device of the present invention from a front view;

[0025] Figure 8 It is a schematic diagram of the anti-magnetic device of the present invention;

[0026] Fig. 9 It is a schematic diagram of the bottom perspective of the anti-magnetic device of the present invention.

[0027] In the figure: 1. support frame; 2. denitrification barrel; 21. drainage pipe; 3. control component; 31. water guide pipe; 32. liquid injection port; 4. decomposition device; 41. conical vertical plate; 42. heating component; 43. fixing rod; 44. spiral decomposition plate; 45. anti-skid wheel; 46. telescopic limit plate; 47. scraper plate; 5. anti-magnetic device; 51. L-shaped plate; 52. sliding plate; 53. rotating rod; 54. rotating plate; 55. L-shaped rod; 56. resistance plate; 57. magnetic plate; 58. reset plate; 6. arc base; 7. heterotrophic denitrification component; 8. electric circular slide rail; 9. telescopic rod; 10. partition filter plate; 11. telescopic spoiler; 12. transmission wheel; 13. reciprocating screw rod; 14. concentric ring; 15. transmission plate; 16. groove telescopic plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-Figure 9One embodiment of the present invention is: a biological denitrification device for chemical wastewater, comprising a support frame 1, a denitrification barrel 2 is arranged at the center of the top of the support frame 1, and an annular limiting groove is arranged at the bottom of the inner wall of the denitrification barrel 2, a drainage pipe 21 is arranged at the bottom of the denitrification barrel 2, a control component 3 is arranged at the top of the denitrification barrel 2, a water guide pipe 31 is arranged inside the control component 3, and the bottom of the water guide pipe 31 runs through the inside of the denitrification barrel 2, two liquid injection ports 32 are arranged on the top of the denitrification barrel 2, and the two liquid injection ports 32 are symmetrically distributed about the axis of the denitrification barrel 2, and a curved bottom is fixedly installed at the bottom of the inner wall of the denitrification barrel 2. The arc surface base 6 is designed to be higher on the left and lower on the right, and a slide groove is provided on the top of the arc surface base 6. A heterotrophic denitrification component 7 is fixedly installed inside the arc surface base 6. An electric circular slide rail 8 is fixedly installed on the top of the inner wall of the denitrification barrel 2. A telescopic rod 9 is slidably installed inside the electric circular slide rail 8. The bottom of the telescopic end of the telescopic rod 9 is slidably installed inside the slide groove of the arc surface base 6. A partition filter plate 10 is passed through and fixedly installed on the outer wall of the telescopic end of the telescopic rod 9. The outer wall of the partition filter plate 10 contacts the inner wall of the denitrification barrel 2. A plurality of telescopic spoilers 11 are equidistantly and fixedly installed on the bottom of the partition filter plate 10. A transmission wheel 12 is rotatably installed on the side of the telescopic spoiler 11 close to the inner wall of the heterotrophic denitrification component 7, and a reciprocating screw rod 13 is fixedly installed on the side of the transmission wheel 12 away from the inner wall of the heterotrophic denitrification component 7. A concentric ring 14 is threadedly connected to the outer wall of the reciprocating screw rod 13 away from the transmission wheel 12. A transmission plate 15 is hingedly connected to the concentric ring 14 on the side close to the telescopic spoiler 11. A groove telescopic plate 16 is fixedly installed on the outer wall of the telescopic spoiler 11. Through the above cooperation, the separation filter plate 10 is prompted to block and separate large pieces of mud or impurities in the wastewater. During the up and down movement of the separation filter plate 10 It promotes the rapid fall of small mud blocks and the denitrification treatment of wastewater synchronously, effectively preventing the nitrogen in large pieces of sludge from being difficult to discharge, resulting in poor denitrification of wastewater by heterotrophic denitrifying bacteria and direct discharge to cause environmental pollution; the wastewater is stirred by the above-mentioned coordinated telescopic spoiler 11 revolution and reciprocating extension, and at the same time, the groove telescopic plate 16 disturbs the denitrification filler emitted by the heterotrophic denitrification component 7 by the revolution of the telescopic spoiler 11 and its own reciprocating extension, thereby ensuring that the denitrification filler is evenly distributed inside the denitrification barrel 2 while further improving the denitrification effect of the denitrification filler on the wastewater.

[0030] The bottoms of the fixed ends of several telescopic spoilers 11 are slidably installed inside the annular limiting groove at the bottom of the inner wall of the denitrification barrel 2, and the telescopic end of the telescopic spoiler 11 is a hollow inclined surface design, the outer wall of the reciprocating screw 13 movably passes through the interior of the fixed end of the telescopic spoiler 11, the outer wall of the telescopic end of the groove telescopic plate 16 is hinged to the transmission plate 15 near the side of the telescopic spoiler 11, and a decomposition device 4 for stirring and dispersing large pieces of mud is arranged above the partition filter plate 10.

[0031] During use, chemical wastewater is aerated in the wastewater pool and then transported to the denitrification barrel 2 through the water pipe 31 with the help of an external water delivery component. At this time, the control component 3 controls the wastewater injection amount to avoid overflow. While transporting the wastewater, disinfectant water is injected into the denitrification barrel 2 through the injection port 32. The denitrified wastewater is discharged through the drain pipe 21 and transported to the next treatment process through an external pipeline. After the wastewater is injected into the denitrification barrel 2, the electric circular slide rail 8 and the heterotrophic denitrification component 7 are started. After the heterotrophic denitrification component 7 is started, the concentration of anaerobic microorganisms in the denitrification barrel 2 is increased through the denitrification filler, providing good conditions for microbial biofilm. At this time, the microorganisms The ammonia nitrogen and organic nitrogen in the sewage are converted into nitrogen gas. The electric circular slide rail 8 drives the fixed end of the telescopic rod 9 to make a revolution and slide inside itself. The bottom of the telescopic end of the telescopic rod 9 slides along the arc groove at the top of the arc base 6. At this time, the telescopic end of the telescopic rod 9 uses the design of the arc base 6 with high left and low right to enable the telescopic end of the telescopic rod 9 to achieve reciprocating telescopic motion during the sliding process. At this time, the telescopic end of the telescopic rod 9 drives the partition filter plate 10 to slide up and down along the inner wall of the denitrification barrel 2. Through the above cooperation, the partition filter plate 10 is prompted to block and separate large mud blocks or impurities in the wastewater. During the up and down movement of the partition filter plate 10, the small mud blocks are prompted to fall quickly and synchronize with the wastewater The denitrification treatment is carried out to effectively prevent the nitrogen in the large sludge from being difficult to discharge, resulting in poor denitrification of the wastewater by heterotrophic denitrifying bacteria and direct discharge to cause environmental pollution; when the partition filter plate 10 moves up and down, the telescopic end of the telescopic spoiler 11 is driven to reciprocate and reposition, and when the partition filter plate 10 revolves, the telescopic spoiler 11 drives the transmission wheel 12 to revolve along the bottom of the inner wall of the denitrification barrel 2 to generate friction. When the transmission wheel 12 rotates by the friction force, it drives the reciprocating screw 13 to rotate. When the reciprocating screw 13 rotates, the reciprocating spiral groove on the outer wall restricts the inner wall of the concentric ring 14, prompting the reciprocating screw 13 to rotate and drive the concentric ring 14 to approach the telescopic spoiler 1 1 direction and reset, the concentric ring 14 drives the transmission plate 15 to move synchronously, and the transmission plate 15 moves toward the telescopic spoiler 11 and contacts the telescopic end of the groove telescopic plate 16. At this time, the hinge shaft of the transmission plate 15 starts to rotate and pushes the telescopic end of the groove telescopic plate 16 to start extending. The wastewater is stirred by the above-mentioned cooperation with the telescopic spoiler 11 to revolve and reciprocate and extend. At the same time, the groove telescopic plate 16 relies on the revolution of the telescopic spoiler 11 and its own reciprocating extension to disturb the denitrification filler emitted by the heterotrophic denitrification component 7, thereby ensuring that the denitrification filler is evenly distributed inside the denitrification barrel 2 while further improving the denitrification effect of the denitrification filler on the wastewater.

[0032] See also Figure 1-Figure 9 , based on the above embodiment, another embodiment of the present invention further includes a decomposition device 4;

[0033] The decomposition device 4 includes a conical vertical plate 41, a heating component 42, a fixing rod 43, a spiral decomposition piece 44 and an anti-skid wheel 45. The bottom of the conical vertical plate 41 is fixedly installed at the top center of the partition filter plate 10. The inner wall of the heating component 42 is rotatably installed inside the circular groove of the conical vertical plate 41. One end of the fixing rod 43 close to the center of the partition filter plate 10 is rotatably installed on the outer wall of the heating component 42. The outer wall of the fixing rod 43 is fixedly installed with a spiral decomposition piece 44. The anti-skid wheel 45 penetrates inside and is fixedly installed on the outer wall of the fixing rod 43. The top of the conical vertical plate 41 is directly opposite to the bottom of the water pipe 31. A circular groove is provided on the outer wall of the shaped vertical plate 41, and the outer wall of the anti-skid wheel 45 is in contact with the top surface of the partition filter plate 10. An anti-magnetic device 5 for collecting magnetic chips carried in large pieces of soil is provided above the spiral decomposition sheet 44. Through the above cooperation, the spiral decomposition sheet 44 is enabled to decompose and crush large pieces of soil during the rotation and revolution of the partition filter plate 10, and the decomposed soil pieces are evenly distributed on the top of the partition filter plate 10, thereby improving the overall denitrification effect of heterotrophic denitrification bacteria on wastewater and promoting the decomposed mud pieces to fall quickly during the reciprocating up and down movement of the partition filter plate 10.

[0034] The decomposition device 4 also includes a telescopic limit plate 46 and a scraper plate 47. The top of the fixed end of the telescopic limit plate 46 is fixedly installed on the top of the inner wall of the denitrification barrel 2. The outer wall of the telescopic end of the telescopic limit plate 46 is movable inside the outer wall of the fixed rod 43. The scraper plate 47 is fixedly installed on the outer wall of the telescopic end of the telescopic limit plate 46 away from the center of the partition filter plate 10. The scraper plate 47 is close to the center of the partition filter plate 10 and contacts the outer wall of the conical vertical plate 41. Through the above cooperation, the scraper plate 47 is used to scrape off the mud or dirt remaining on the outer wall of the conical vertical plate 41, thereby ensuring the cleanliness of the outer wall of the conical vertical plate 41 while preventing the outer wall of the conical vertical plate 41 from corrosion. At the same time, the scraper plate 47 moves up and down to effectively prevent dirt from adhering to its own outer wall.

[0035] During use, when the wastewater carrying sludge enters the denitrification barrel 2 from the water pipe 31, the wastewater falls toward the conical vertical plate 41, and the conical vertical plate 41 moves up and down through the partition filter plate 10. The conical vertical plate 41 guides the falling wastewater through its own arc surface. At this time, the wastewater is dispersed around the partition filter plate 10 through the drainage guide of the conical vertical plate 41, and the heating component 42 is started at the same time. The heat emitted by the heating component 42 heats up the inside of the denitrification barrel 2, and the heat makes the heterotrophic denitrification bacteria more active. At the same time, the fixed rod 43 is limited by the telescopic limiting plate 46. At this time, when the partition filter plate 10 drives the conical vertical plate 41 to rotate, the fixed rod 43 remains stationary, and the fixed rod 43 forces the heating component 42 to be stationary. When the partition filter plate 10 revolves, its top contacts the outer wall of the anti-skid wheel 45 to generate friction. At this time, the anti-skid wheel 45 drives the fixed rod 43 to rotate along the outer wall of the heating component 42 when the friction rotates, and the fixed rod 43 drives the spiral decomposition sheet 44 to rotate. At the same time, the conical vertical plate 41 The heating assembly 42 is driven to move reciprocatingly up and down through the circular groove, thereby causing the anti-skid wheel 45 to always contact with the top of the partition filter plate 10. Through the above cooperation, the spiral decomposition sheet 44 is caused to decompose and crush large pieces of soil during the rotation and revolution of the partition filter plate 10, and the decomposed soil is evenly distributed on the top of the partition filter plate 10, thereby improving the overall denitrification effect of heterotrophic denitrification bacteria on wastewater and causing the decomposed mud to fall quickly during the reciprocating up and down movement of the partition filter plate 10; when the fixed rod 43 reciprocates up and down, it pulls the telescopic end of the telescopic limit plate 46 to move synchronously, and the telescopic end of the telescopic limit plate 46 drives the scraper plate 47 to move synchronously, causing the scraper plate 47 to always be close to the outer wall of the conical vertical plate 41. Through the above cooperation, the scraper plate 47 is used to scrape off the mud or dirt remaining on the outer wall of the conical vertical plate 41, ensuring the cleanliness of the outer wall of the conical vertical plate 41 while preventing the outer wall of the conical vertical plate 41 from corrosion. At the same time, the up and down movement of the scraper plate 47 effectively avoids dirt from adhering to its own outer wall.

[0036] See also Figure 1-Figure 9 , based on the above embodiment, another embodiment of the present invention further includes an anti-magnetic device 5;

[0037] The anti-magnetic device 5 includes an L-shaped plate 51, a sliding plate 52, a rotating rod 53 and a plurality of rotating plates 54. The bottom of the L-shaped plate 51 is fixedly installed on the outer wall of the telescopic end of the telescopic limit plate 46 near the conical vertical plate 41, and the sliding plate 52 is fixedly installed on the inner wall of the L-shaped plate 51 away from the telescopic limit plate 46. The top of the rotating rod 53 is rotatably installed on the top of the inner wall of the denitrification barrel 2. A plurality of rotating plates 54 are equidistant and fixedly installed above the outer wall of the rotating rod 53. Through the above cooperation, the disinfectant water is evenly dispersed into the interior of the denitrification barrel 2 with the help of the rotation disturbance of the rotating plate 54 when it falls, so as to evenly disinfect the harmful components in the wastewater. At the same time, the rotating plate 54 is used to disturb the water flow around the injection port 32 to prevent wastewater or harmful components from pouring into the injection port 32 and causing pollution.

[0038] The L-shaped plate 51 is located outside the telescopic limiting plate 46, and a square groove is opened at the bottom of the L-shaped plate 51. A spiral groove is opened on the outer wall of the rotating rod 53. The inner wall of the sliding plate 52 and the spiral groove on the outer wall of the rotating rod 53 are threadedly connected.

[0039] The anti-magnetic device 5 also includes an L-shaped rod 55, a contact plate 56, a magnetic plate 57 and a reset plate 58. The top of the L-shaped rod 55 is fixedly installed on the outer wall of the fixed end of the telescopic limit plate 46 near one side of the conical vertical plate 41, the bottom of the L-shaped rod 55 passes through the square groove of the L-shaped plate 51, the top of the contact plate 56 is fixedly installed on the bottom of the L-shaped rod 55, and the top of the magnetic plate 57 is hinged at the bottom edge of the L-shaped plate 51. The magnetic plate 57 is located above the spiral decomposition sheet 44, and the inner wall of the magnetic plate 57 contacts the outer wall of the contact plate 56. The reset plate 58 is fixedly installed between the outer wall of the magnetic plate 57 and the outer wall of the L-shaped plate 51. Through the above cooperation, the magnetic plate 57 can be slightly swung back and forth above the spiral decomposition sheet 44, and the magnetic impurities or fine debris that float upward under the buoyancy of water after the spiral decomposition sheet 44 decomposes the mud blocks are swung and adsorbed. With the help of the magnetic plate 57, the magnetic impurities are collected in a centralized manner to prevent the magnetic substances from dispersing with the water flow, which increases the wear on the equipment and the maintenance expenses.

[0040] When in use, the telescopic end of the telescopic limiting plate 46 drives the L-shaped plate 51 to move up and down, and the L-shaped plate 51 drives the sliding plate 52 to move synchronously. When the sliding plate 52 slides downward along the outer wall of the spiral groove of the rotating rod 53, the restriction of the spiral groove of the outer wall of the rotating rod 53 by the inner wall of the sliding plate 52 causes the rotating rod 53 to generate a rotating force. At the same time, with the help of the denitrification barrel 2 to limit the rotating rod 53, the top of the rotating rod 53 rotates along the top of the inner wall of the denitrification barrel 2, and the rotating rod 53 drives the rotating plate 54 to rotate. The rotating plate 54 performs a rotational disturbance on the disinfectant water falling from the injection port 32. Through the above cooperation, the disinfectant water is evenly dispersed into the denitrification barrel 2 with the help of the rotation disturbance of the rotating plate 54 when it falls, and the harmful components in the wastewater are evenly disinfected. At the same time, the rotating plate 54 is used to disturb the water flow around the injection port 32 to prevent wastewater or harmful components from pouring into the injection port 32 and causing pollution; when the L-shaped plate 51 moves downward, the fixed end of the telescopic limiting plate 46 The L-shaped rod 55 is limited to keep the L-shaped rod 55 still, and the L-shaped rod 55 causes the contact plate 56 to be still. At this time, when the L-shaped plate 51 drives the magnetic plate 57 to move downward, the inner wall of the magnetic plate 57 contacts the outer wall of the contact plate 56 to generate a resistance force, and the resistance force causes the hinge axis of the magnetic plate 57 to start to rotate. At this time, the magnetic plate 57 swings with the hinge axis as the axis toward the axis center close to the bottom of the L-shaped plate 51, and the magnetic plate 57 pulls the reset plate 58 to deform synchronously. Thereafter, the magnetic plate 57 is reset by the elastic force of the reset plate 58 and reciprocates in this way. Through the above cooperation, the magnetic plate 57 can be able to swing slightly back and forth above the spiral decomposition plate 44, and the magnetic impurities or fine debris that float upward under the buoyancy of water after the spiral decomposition plate 44 decomposes the mud blocks are swung and adsorbed. With the help of the magnetic plate 57, the magnetic impurities can be collected in a concentrated manner to prevent the magnetic substances from dispersing with the water flow, increasing the wear on the equipment and increasing the maintenance expenses.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biological denitrification device for chemical wastewater, comprising a support frame (1), a denitrification barrel (2) is arranged at the center of the top of the support frame (1), and an annular limit groove is arranged at the bottom of the inner wall of the denitrification barrel (2), a drainage pipe (21) is arranged at the bottom of the denitrification barrel (2), a control component (3) is arranged at the top of the denitrification barrel (2), a water guide pipe (31) is arranged inside the control component (3), the bottom of the water guide pipe (31) passes through the inside of the denitrification barrel (2), two liquid injection ports (32) are arranged on the top of the denitrification barrel (2), and the two liquid injection ports (32) are symmetrically distributed around the axis of the denitrification barrel (2), characterized in that: A curved surface base (6) is fixedly installed at the bottom of the inner wall of the denitrification barrel (2), the curved surface base (6) is designed to be higher on the left and lower on the right, and a slide groove is opened on the top of the curved surface base (6), a heterotrophic denitrification component (7) is fixedly installed inside the curved surface base (6), an electric circular slide rail (8) is fixedly installed on the top of the inner wall of the denitrification barrel (2), a telescopic rod (9) is slidably installed inside the electric circular slide rail (8), the bottom of the telescopic end of the telescopic rod (9) is slidably installed inside the slide groove of the curved surface base (6), and a partition filter plate (10) is penetrated and fixedly installed on the outer wall of the telescopic end of the telescopic rod (9), and the outer wall of the partition filter plate (10) is connected to the denitrification barrel ( 2) contact with the inner wall, a plurality of telescopic spoilers (11) are equidistantly and fixedly mounted on the bottom of the separation filter plate (10), a transmission wheel (12) is rotatably mounted on the side of the telescopic spoiler (11) close to the inner wall of the heterotrophic denitrification component (7), a reciprocating screw rod (13) is fixedly mounted on the side of the transmission wheel (12) away from the inner wall of the heterotrophic denitrification component (7), a concentric ring (14) is threadedly connected to the outer wall of the reciprocating screw rod (13) at one end away from the transmission wheel (12), a transmission plate (15) is hingedly connected to the side of the concentric ring (14) close to the telescopic spoiler (11), and a groove telescopic plate (16) is fixedly mounted on the outer wall of the telescopic spoiler (11); The bottoms of the fixed ends of the plurality of telescopic spoilers (11) are slidably mounted inside the annular limiting groove at the bottom of the inner wall of the denitrification barrel (2); the outer wall of the reciprocating screw (13) movably penetrates the inside of the fixed end of the telescopic spoiler (11); and the outer wall of the telescopic end of the groove telescopic plate (16) is hinged to the transmission plate (15) near the telescopic spoiler (11).

2. A biological denitrification device for chemical wastewater according to claim 1, characterized in that: The telescopic end of the telescopic spoiler (11) is designed as a hollow inclined surface, and a decomposition device (4) for stirring and dispersing large mud blocks is provided above the separation filter plate (10).

3. A biological denitrification device for chemical wastewater according to claim 2, characterized in that: The decomposition device (4) comprises a conical vertical plate (41), a heating component (42), a fixing rod (43), a spiral decomposition sheet (44) and an anti-slip wheel (45); the bottom of the conical vertical plate (41) is fixedly mounted at the top center of the partition filter plate (10); the inner wall of the heating component (42) is rotatably mounted inside the circular groove of the conical vertical plate (41); one end of the fixing rod (43) close to the center of the partition filter plate (10) is rotatably mounted on the outer wall of the heating component (42); the outer wall of the fixing rod (43) is fixedly mounted with a spiral decomposition sheet (44); and the anti-slip wheel (45) penetrates inside and is fixedly mounted on the outer wall of the fixing rod (43).

4. A biological denitrification device for chemical wastewater according to claim 3, characterized in that: The top of the conical vertical plate (41) faces the bottom of the water pipe (31), the outer wall of the conical vertical plate (41) is provided with a circular groove, the outer wall of the anti-slip wheel (45) contacts the top surface of the partition filter plate (10), and an anti-magnetic device (5) for collecting magnetic chips carried in large pieces of soil is provided above the spiral decomposition plate (44).

5. A biological denitrification device for chemical wastewater according to claim 4, characterized in that: The decomposition device (4) further comprises a telescopic limit plate (46) and a scraper plate (47); the top of the fixed end of the telescopic limit plate (46) is fixedly mounted on the top of the inner wall of the denitrification barrel (2); the outer wall of the rod (43) is movably fixed inside the telescopic end of the telescopic limit plate (46); the scraper plate (47) is fixedly mounted on the outer wall of the telescopic end of the telescopic limit plate (46) at a side away from the center of the partition filter plate (10); and the scraper plate (47) is in contact with the outer wall of the conical vertical plate (41) at a side close to the center of the partition filter plate (10).

6. A biological denitrification device for chemical wastewater according to claim 5, characterized in that: The anti-magnetic device (5) comprises an L-shaped plate (51), a sliding plate (52), a rotating rod (53) and a plurality of rotating plates (54); the bottom of the L-shaped plate (51) is fixedly mounted on the outer wall of the telescopic end of the telescopic limit plate (46) on the side close to the conical vertical plate (41); the side of the sliding plate (52) is fixedly mounted on the inner wall of the L-shaped plate (51) away from the telescopic limit plate (46); the top of the rotating rod (53) is rotatably mounted on the top of the inner wall of the denitrification barrel (2); and the plurality of rotating plates (54) are equidistantly and fixedly mounted above the outer wall of the rotating rod (53).

7. A biological denitrification device for chemical wastewater according to claim 6, characterized in that: The L-shaped plate (51) is located outside the telescopic limit plate (46), and a square groove is provided at the bottom of the L-shaped plate (51). A spiral groove is provided on the outer wall of the rotating rod (53), and the inner wall of the sliding plate (52) and the spiral groove on the outer wall of the rotating rod (53) are threadedly connected.

8. A chemical wastewater biological denitrification device according to claim 7, characterized in that: The anti-magnetic device (5) further comprises an L-shaped rod (55), a contact plate (56), a magnetic plate (57) and a reset plate (58); the top of the L-shaped rod (55) is fixedly mounted on the outer wall of the fixed end of the telescopic limit plate (46) near one side of the conical vertical plate (41); the bottom of the L-shaped rod (55) passes through the square groove of the L-shaped plate (51); the top of the contact plate (56) is fixedly mounted on the bottom of the L-shaped rod (55); the top of the magnetic plate (57) is hinged at the bottom edge of the L-shaped plate (51); the magnetic plate (57) is located above the spiral decomposition plate (44); the inner wall of the magnetic plate (57) contacts the outer wall of the contact plate (56); and the reset plate (58) is fixedly mounted between the outer wall of the magnetic plate (57) and the outer wall of the L-shaped plate (51).

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