Medical sewage deep denitrification device and operation method thereof

Abstract

The invention discloses a medical sewage deep denitrification device and an operation method thereof, and particularly relates to the technical field related to sewage treatment.The medical sewage deep denitrification device comprises a reaction bin, a filtering bin and a water inlet bin, and a stirring assembly used for conducting denitrification reaction on sewage is arranged above the reaction bin; a gain assembly used for premixing an added denitrifying agent and sewage is arranged above the filtering bin, a filtering assembly used for filtering a catalyst in effluent is arranged above the gain assembly, a rotating shaft is driven by a motor, the rotating shaft rotates to drive a half gear and a rotating sleeve to rotate, and the half gear and the rotating sleeve are driven to rotate; a rotating sleeve can drive a gear ring to rotate, and a matching gear can be driven to rotate forwards and backwards through synchronous rotation of a half gear and the rotating sleeve, so that multiple groups of stirring blades on the surface of a stirring shaft are driven to rotate forwards and backwards, sewage in a reaction bin can be fully stirred, and a denitrification agent is fully mixed and reacted with the sewage; the sewage denitrification and organic matter treatment efficiency can be improved, and the treatment quality is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a medical sewage deep denitrification device and an operating method thereof. Background Art

[0002] Medical wastewater refers to wastewater containing pathogens, chemicals, radioactive substances and other harmful substances generated by medical institutions during their daily operations. If these wastewaters are not properly treated and directly discharged into the environment, they may cause serious harm to human health and the ecological environment.

[0003] The nitrogen in medical wastewater mainly comes from patients' domestic sewage, drug residues, laboratory reagents, etc. The nitrogen exists in the forms of organic nitrogen, ammonia nitrogen, nitrate nitrogen and nitrite nitrogen. Denitrification is an important link in medical wastewater treatment. Its main purpose is to convert the nitrogen in the sewage into a harmless or low-harm form to reduce pollution to the environment.

[0004] During the biological treatment process, microorganisms need a carbon source to provide energy and use ammonia nitrogen as a nitrogen source for growth. The content of biodegradable organic matter (BOD) in medical wastewater is insufficient, that is, the carbon-nitrogen ratio (C / N ratio) is too low. Microorganisms will not be able to effectively use ammonia nitrogen for anabolism, resulting in ammonia nitrogen not being converted into microbial cells or converted into nitrate by nitrification. At the same time, nitrification is a two-step biological process. First, nitrite nitrogen is converted into nitrite nitrogen by nitrite bacteria, and then nitrifying bacteria converts nitrite nitrogen into nitrate nitrogen. If any step in the nitrification process is inhibited, such as insufficient dissolved oxygen, unsuitable pH value, low temperature or the presence of toxic substances, it will affect the activity of nitrifying bacteria, resulting in ammonia nitrogen not being effectively converted. Therefore, due to the imbalance of carbon-nitrogen ratio in medical wastewater and inadequate control of operating parameters, ammonia nitrogen exceeds the standard in medical wastewater treatment.

[0005] When denitrifying and degrading organic matter in medical sewage, it is necessary to add corresponding denitrifiers and carbon sources to the sewage in advance, and premix the sewage with the denitrifier before the denitrification reaction of the sewage to achieve a reasonable carbon-nitrogen ratio so that it can achieve the optimal conditions for the denitrification reaction. The mixed liquid then enters the reaction chamber, and the biological denitrification reaction is carried out with the participation of the catalyst. After the denitrification reaction is completed, the catalyst and the effluent need to be separated into solid and liquid. If it is not handled properly, the catalyst will be lost during the denitrification treatment of the sewage, thereby affecting the treatment efficiency of the subsequent denitrification reaction. Denitrifiers need to be added during the denitrification reaction of sewage, but the existing devices cannot premix the sewage with the denitrifier, which will reduce the effect of the denitrification reaction, and cannot effectively separate the solid catalyst from the effluent in time, which will further reduce the efficiency of the subsequent sewage denitrification, thereby affecting the effluent water quality. Therefore, a medical sewage deep denitrification device and an operation method thereof are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a medical wastewater deep denitrification device and an operating method thereof, aiming to solve the problem that the solid-liquid separation effect between the wastewater and the catalyst after the denitrification reaction is poor, which leads to a decrease in microbial activity; at the same time, the denitrifier cannot be pre-mixed with the wastewater, thereby reducing the wastewater denitrification effect.

[0007] To achieve the above object, the present invention provides the following technical solutions: a medical sewage deep denitrification device, comprising a reaction chamber, a filter chamber and a water inlet chamber, a stirring assembly for stirring and denitrifying sewage is arranged above the reaction chamber, the filter chamber is fixedly connected to the side of the reaction chamber, a gain assembly for premixing a denitrifier and sewage is arranged above the filter chamber, and a filter assembly for filtering a catalyst in effluent water is arranged above the gain assembly;

[0008] The stirring assembly comprises a motor, the motor is fixedly connected to the reaction chamber through an L-shaped frame, the output end of the motor is fixedly connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to a half gear and a rotating sleeve, one end of the rotating sleeve is fixedly connected to a gear ring, the half gear and the gear ring are both meshed and connected to a matching gear, a stirring shaft is fixedly connected below the matching gear, and a plurality of stirring blades and a push plate are fixedly connected to the surface of the stirring shaft;

[0009] The filter assembly comprises a rotating blade and a filter plate, the filter assembly controls the gain assembly through the filter plate to pre-mix the denitrifier and the sewage, the rotating blade is rotatably connected to the water inlet bin, the interior of the rotating blade is fixedly connected to a transmission shaft, both ends of the transmission shaft are fixedly connected to a rotating disk, one end of the rotating disk is rotatably connected to a swing rod through a pin, the swing rod is rotatably connected to the filter plate through a pin, the bottom of the filter plate is slidably connected to the drainage bin, the top of the filter plate is rotatably connected to a rotating rod, the surface of the rotating rod is provided with two groups of arc grooves in opposite directions, the rotating rod is slidably provided with two groups of sliding columns through the arc grooves, and one end of the sliding column is fixedly connected to a cleaning plate;

[0010] The gain component includes a matching block and two groups of material receiving bins, the matching block is magnetically connected to the filter plate, a baffle is fixedly connected to the top of the matching block, the baffle is slidably connected to the drainage bin, one side of one group of the material receiving bins is fixedly connected to a sliding rod, and the top of the other group of the material receiving bins is fixedly connected to a pushing frame.

[0011] Preferably, a scraper is fixedly connected to one end of the push plate, a magnet is fixedly connected to the surface of the scraper, the scraper and the magnet are both slidably connected to the reaction chamber, an adsorption disk is detachably connected to the interior of the reaction chamber, two groups of pressure rods are elastically connected to the top of the adsorption disk, a first piston cylinder is fixedly connected to the top of the reaction chamber, a first piston rod is slidably connected to the interior of the first piston cylinder, a liquid spraying pipe is fixedly connected to the surface of the first piston cylinder, a plurality of groups of liquid spraying ports are fixedly connected to the surface of the liquid spraying pipe, a slide groove is also provided inside the reaction chamber, a magnetic plate is slidably connected to the interior of the slide groove, the magnetic block is magnetically connected to the magnetic plate, and a reset spring is arranged between the magnetic plate and the reaction chamber.

[0012] Preferably, two sets of gears are fixedly connected at both ends of the rotating rod, a rack is meshingly connected at the bottom of the gear, the rack is fixedly connected to the drainage bin, the drainage bin is fixedly connected to the reaction bin, a fixed rod is fixedly connected to the bottom of the filter plate, wedge blocks are fixedly connected to both ends of the filter plate, discharge ports are opened on both side surfaces of the drainage bin, a sliding plate is arranged at the discharge port, the sliding plate is slidably connected to the drainage bin by sliding pins, and a reset element is arranged between the sliding plate and the drainage bin.

[0013] Preferably, the water inlet bin and the drainage bin are fixedly connected, a pressure plate is fixedly connected above the filter plate, six groups of rotating blades are arranged at an angle of sixty degrees on the surface of the transmission shaft, the pin shaft connecting the swing arm and the filter plate is slidably connected to the drainage bin, a sealing gasket is arranged at the sliding position of the pin shaft, a through hole is opened at the bottom of the drainage bin, a filter net is arranged at the position of the through hole, the filter plate and the drainage bin are both inclined at a certain angle, sliding grooves are arranged on both sides of the drainage bin, a rubber pad is arranged inside the sliding groove, and the pin shaft at one end of the swing arm slides inside the sliding groove.

[0014] Preferably, the side of the material receiving bin is slidably connected to the drainage bin, and a reset element is provided at the sliding position. The material receiving bin is located directly below the sliding plate, and a cylindrical cam is slidably provided at one end of the sliding rod. The internal spline of the cylindrical cam is connected to a matching rod, and the matching rod is rotatably connected to the pushing frame. A plurality of groups of spiral leaves are fixedly connected to the surface of the matching rod, and a mixing drum is rotatably connected to the surface of the matching rod.

[0015] Preferably, the interior of the mixing drum is fixedly connected with a hose, the other end of the hose is fixedly connected with a second piston cylinder, the interior of the second piston cylinder is slidably connected with a second piston rod, the second piston rod is located obliquely above the matching block, one end of the second piston cylinder is fixedly connected with a storage box, the storage box is fixedly connected to the water inlet bin, a drain pipe is provided below the internal through hole of the drainage bin, the lower end of the drain pipe is fixedly connected to the mixing drum, and the lower end of the mixing drum is fixedly connected to the filter bin.

[0016] Preferably, a water inlet pipe is provided between the mixing drum and the reaction chamber, a blocking plate is slidably connected inside the water inlet pipe, a sealing gasket is provided at the sliding position of the blocking plate and the drain pipe, a wave plate is fixedly connected obliquely below the matching block, the wave plate is slidably connected to the drain chamber, the wave plate is located directly above the blocking plate, and one end of the pressure rod is fixedly connected to the top of the material receiving chamber.

[0017] Preferably, the interior of the material receiving bin is rotatably connected to a bottom plate via a pin shaft, a tension spring is arranged between the bottom plate and the material receiving bin, the interiors of the hose, the second piston cylinder, the first piston cylinder and the spray pipe are all provided with one-way valves, the interior of the second piston cylinder is provided with a reset element, the bottom of the filter bin is fixedly connected with a support leg, the lower part of the pressure plate is slidably connected to the first piston rod, the upper part of the adsorption plate is also fixedly connected to a push rod, the push rod is slidably connected to the reaction bin, and sealing gaskets are arranged at the connection positions between the stirring shaft and the push rod and the reaction bin.

[0018] Preferably, the magnetic block and the magnetic plate are made of magnetic materials with high corrosion resistance, the surface of the stirring blade is provided with a plurality of through holes, the push plate is made of lightweight aluminum alloy, the side of the gear ring is rotatably connected to the L-shaped frame fixedly connected to the top of the reaction bin, the second piston cylinder is detachably connected to the bottom of the drainage bin, the cylindrical cam is rotatably connected to the drainage pipe through a bracket, the filter plate is fixedly connected to the wedge block, a spring sleeve is provided on the surface of the blocking plate, a blower is installed on the side of the reaction bin, an aeration pipe is provided at the air outlet end of the blower, the aeration pipe is communicated with the interior of the reaction bin, and a one-way valve is provided inside.

[0019] As a preferred embodiment, a method for operating a medical wastewater deep denitrification device comprises the following steps:

[0020] S1: The driving shaft is driven to rotate by the rotating blades, and the driving shaft drives the swing rod to swing through the turntable. The swing rod pulls the filter plate through the pin shaft to continuously move inside the drainage bin, which can separate the solid and liquid of the catalyst after the denitrification reaction. At the same time, the filter plate drives the rotating rod to move, and the rotating rod drives the two sets of cleaning plates to move through the sliding column, which can collect and reuse the filtered catalyst, thereby continuously maintaining the denitrification effect of sewage, and the suspended solids in the effluent can also meet the discharge requirements.

[0021] S2: The matching block drives the baffle to move, so that part of the sewage can be transported to the inside of the mixing drum through the drain pipe. At the same time, the matching block can push the second piston rod to slide inside the second piston cylinder to transport the biomass carbon source to the inside of the mixing drum. Then, the weight of the catalyst falling into the receiving bin can drive the receiving bin to move downward. The receiving bin can drive the cylindrical cam to rotate through the sliding rod. The rotation of the cylindrical cam can drive the spiral leaves on the surface of the matching rod to pre-mix and stir the biomass carbon source and sewage.

[0022] S3: The motor drives the rotating shaft to rotate, and the rotating shaft drives the half gear and the rotating sleeve to rotate. The rotation of the half gear and the rotating sleeve can drive the matching gear to rotate forward and reverse, and can perform forward and reverse stirring inside the reaction chamber, thereby improving the mixing efficiency of the denitrification agent, sewage and catalyst, and improving the denitrification effect of sewage;

[0023] S4: The movement of the receiving bin and the pressure plate can drive the pressure rod and the push rod to move up and down respectively. After the pressure rod moves a certain distance, the pressure plate will exert an impact force on the push rod, causing the adsorption plate to shake, which can improve the effect of the adsorption plate on cleaning and collecting the catalyst in the sewage.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention drives the rotating shaft to rotate through the motor in the stirring assembly, and the rotation of the rotating shaft drives the half gear and the rotating sleeve to rotate. The rotation of the rotating sleeve drives the gear ring to rotate. Through the synchronous rotation of the half gear and the rotating sleeve, the matching gear can be driven to rotate forward and reverse, thereby driving the multiple groups of stirring blades on the surface of the stirring shaft to rotate forward and reverse, which can fully stir the sewage inside the reaction chamber, enable the denitrification agent to fully react with the sewage for denitrification, improve the efficiency of sewage denitrification and organic matter treatment, and have a high treatment quality.

[0026] 2. The present invention can drive the rotating blades to rotate through the impact force of sewage, and the rotating blades can drive the turntable to rotate through the transmission shaft, and the turntable can drive the swing rod to swing through the pin shaft. The swing rod can pull the filter plate to slide inside the drainage bin through the pin shaft, and can filter the catalyst after the nitrification reaction in the reaction bin, thereby improving the effect of sewage denitrification treatment. At the same time, the filter plate drives two groups of cleaning plates to slide on its surface through the rotation of the rotating rod arranged above, and can collect and reuse the filtered catalyst. The original denitrification device separates the catalyst through precipitation after the denitrification reaction, and adopts a batch operation mode of water inlet, reaction, precipitation, and water outlet. The denitrification device of the present invention can adopt continuous operation, which greatly increases the treatment efficiency and reduces the operation intensity. At the same time, the movement of the filter plate can drive the fixed rod to slide inside the drainage bin, and can scrape its bottom to avoid a large amount of impurities adhering to its inside, which affects the subsequent sewage treatment effect.

[0027] 3. The present invention drives the movement of the matching block through the movement of the filter plate. The movement of the matching block can push the second piston rod to slide inside the second piston cylinder, and can add the biomass carbon source inside the storage box to the inside of the mixing drum in a controlled amount. At the same time, the movement of the matching block can drive the baffle to slide inside the drainage bin, and can intermittently open the through holes inside the drainage bin to facilitate part of the sewage to flow into the inside of the mixing drum through the drain pipe. The sewage and the biomass carbon source can be pre-mixed inside the mixing drum through the rotation of the spiral blades, and the carbon-nitrogen ratio of the sewage can be accurately adjusted to avoid the uneven phenomenon caused by directly adding the biomass carbon source into the sewage, which can effectively improve the treatment effect of the sewage denitrification reaction.

[0028] 4. In the present invention, the downward movement of the catalyst collected in the receiving bin drives the sliding rod to move downward, and the movement of the sliding rod can drive the cylindrical cam to rotate. The rotation of the cylindrical cam can drive the spiral blades to rotate inside the mixing drum through the matching rod, so as to stir the biomass carbon source and the sewage. At the same time, the downward movement of another group of receiving bins will drive the movement of the pushing frame, and the movement of the pushing frame can make the matching rod move up and down while rotating, so as to better stir and mix the biomass carbon source and the sewage, and can effectively improve the efficiency of adding the pre-mixed biomass carbon source to the reaction bin and mixing it with the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal structure of the reaction chamber and the filtration chamber of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the stirring assembly of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the magnetic block and the magnetic plate of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the filter component and the gain component of the present invention;

[0034] Figure 6 It is a schematic diagram of the internal structure of the filter assembly of the present invention;

[0035] Figure 7 It is a structural schematic diagram of the fixing rod and the wedge block of the present invention;

[0036] Figure 8 It is a schematic diagram of the internal structure of the gain component of the present invention;

[0037] Fig. 9 It is a structural schematic diagram of the slide rod and the push frame of the present invention;

[0038] Fig.10This is a schematic diagram of the bottom plate structure of the material receiving bin of the present invention;

[0039] In the figure: 1, reaction chamber; 2, filter chamber; 3, support leg; 4, storage box; 5, water inlet chamber; 100, stirring assembly; 101, motor; 102, rotating shaft; 103, half gear; 104, matching gear; 105, stirring shaft; 106, stirring blade; 107, push plate; 108, scraper; 109, magnetic block; 110, gear ring; 111, magnetic plate; 112, adsorption plate; 113, pressure rod; 114, first piston rod; 115, first piston cylinder; 116, spray pipe; 117, rotating sleeve; 200, filter assembly; 201, rotating blade; 202, transmission shaft; 203, turntable; 204, swing rod; 2 05, filter plate; 206, cleaning plate; 207, sliding column; 208, rotating rod; 209, gear; 210, rack; 211, sliding plate; 212, pressure plate; 213, fixed rod; 214, wedge block; 215, drainage bin; 216, push rod; 300, gain component; 301, matching block; 302, baffle; 303, drainage pipe; 304, mixing drum; 305, hose; 306, receiving bin; 307, sliding rod; 308, cylindrical cam; 309, matching rod; 310, spiral blade; 311, second piston rod; 312, second piston cylinder; 313, wave plate; 314, blocking plate; 315, pushing frame. DETAILED DESCRIPTION

[0040] 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 a part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0041] See also Figures 1 to 10 The present invention provides a technical solution: a medical sewage deep denitrification device, comprising a reaction chamber 1, a filter chamber 2 and a water inlet chamber 5, a stirring assembly 100 for stirring and denitrifying sewage is arranged above the reaction chamber 1, the filter chamber 2 is fixedly connected to the side of the reaction chamber 1, a gain assembly 300 for premixing a biomass carbon source with sewage is arranged above the filter chamber 2, and a filter assembly 200 for filtering a catalyst in the sewage is arranged above the gain assembly 300;

[0042] Among them, through the movement of the filter component 200 and the gain component 300, the denitrification agent can be effectively and evenly added to the interior of the reaction chamber 1, thereby improving the quality of the denitrification and organic matter treatment of the sewage by the stirring component 100.

[0043] The stirring assembly 100 includes a motor 101, which is fixedly connected to the reaction chamber 1 through an L-shaped frame, and the output end of the motor 101 is fixedly connected to a rotating shaft 102, and the surface of the rotating shaft 102 is fixedly connected to a half gear 103 and a rotating sleeve 117, and one end of the rotating sleeve 117 is fixedly connected to a gear ring 110, and the half gear 103 and the gear ring 110 are both meshed and connected to a matching gear 104, and a stirring shaft 105 is fixedly connected below the matching gear 104, and a plurality of stirring blades 106 and a push plate 107 are fixedly connected to the surface of the stirring shaft 105;

[0044] Among them, through the rotation of the half gear 103 and the gear ring 110, the matching gear 104 can be driven to rotate forward and reverse. On the one hand, it can improve the stirring of the sewage during denitrification treatment, and on the other hand, it can effectively increase the mixing rate between the denitrifier and the sewage, thereby improving the effect of the denitrifier on the denitrification of the sewage.

[0045] The filter assembly 200 includes a rotating blade 201 and a filter plate 205. The filter assembly 200 controls the gain assembly 300 to pre-mix the biomass carbon source and the sewage through the filter plate 205. The rotating blade 201 is rotatably connected to the water inlet bin 5. The interior of the rotating blade 201 is fixedly connected to a transmission shaft 202. Both ends of the transmission shaft 202 are fixedly connected to a rotating disk 203. One end of the rotating disk 203 is rotatably connected to a swing rod 204 through a pin shaft. The swing rod 204 is rotatably connected to the filter plate 205 through a pin shaft. The bottom of the filter plate 205 is slidably connected to a drainage bin 215. The top of the filter plate 205 is rotatably connected to a rotating rod 208. An arc groove is provided on the surface of the rotating rod 208. The rotating rod 208 is slidably provided with two groups of sliding columns 207 through the arc groove. One end of the sliding column 207 is fixedly connected to a cleaning plate 206. The filter plate 205 and the cleaning plate 206 are slidably connected.

[0046] Among them, through the reciprocating motion of the filter plate 205, not only can the catalyst in the sewage be filtered and processed, but also the speed of transporting smaller organic matter in the sewage to the inside of the reaction chamber 1 can be accelerated, which can improve the effect of organic matter on sewage denitrification treatment. At the same time, the filtered catalyst can be effectively processed through the cleaning plate 206, thereby improving the use effect of the filter plate 205.

[0047] The gain component 300 includes a matching block 301 and two groups of material receiving bins 306. The matching block 301 is magnetically connected to the filter plate 205. A baffle 302 is fixedly connected to the top of the matching block 301. The baffle 302 is slidably connected to the drainage bin 215. A sliding rod 307 is fixedly connected to one side of one group of material receiving bins 306, and a pushing frame 315 is fixedly connected to the top of the other group of material receiving bins 306.

[0048] Among them, through the movement of the receiving bin 306 and the pushing frame 315, the effect of pre-mixing the biomass carbon source and the sewage can be effectively improved, thereby improving the effect of denitrification of the sewage.

[0049] Furthermore, one end of the push plate 107 is fixedly connected to a scraper 108, and the surface of the scraper 108 is fixedly connected to a magnetic block 109, and the scraper 108 and the magnetic block 109 are both slidably connected to the reaction chamber 1, and the interior of the reaction chamber 1 is detachably connected to an adsorption disk 112, and two groups of pressure rods 113 are elastically connected above the adsorption disk 112, and a first piston cylinder 115 is fixedly connected to the top of the reaction chamber 1, and the interior of the first piston cylinder 115 is slidably connected to a first piston rod 114, and the surface of the first piston cylinder 115 is fixedly connected to a spray pipe 116, and the surface of the spray pipe 116 is fixedly connected to a plurality of groups of spray ports, and a slide groove is also provided inside the reaction chamber 1, and a magnetic plate 111 is slidably connected inside the slide groove, and the magnetic block 109 is magnetically connected to the magnetic plate 111, and a reset spring is arranged between the magnetic plate 111 and the reaction chamber 1.

[0050] Among them, through the intermittent coordinated movement between the magnetic block 109 and the magnetic plate 111, the pre-mixed biomass carbon source and sewage can be intermittently added to the sewage being stirred, and the sewage can be effectively prevented from flowing back, which affects the effect of the denitrification agent on the sewage. At the same time, the adsorption disk 112 is driven to move through the receiving bin 306, which can improve the adsorption disk 112 The processing of suspended matter in the sewage being stirred can be further improved, and the efficiency of sewage denitrification can be further improved. At the same time, since the spray pipe 116 is arranged in an annular shape, the denitrification agent and the like can be evenly sprayed above the adsorption disk 112, which can effectively avoid the denitrification agent and the like from being concentratedly sprayed into the interior of the reaction bin 1. After that, the denitrification agent cannot react quickly with the sewage being stirred, and the speed of the denitrification reaction can be accelerated.

[0051] Furthermore, two sets of gears 209 are fixedly connected to the two ends of the rotating rod 208, and a rack 210 is meshingly connected to the lower part of the gear 209. The rack 210 is fixedly connected to the drainage bin 215, and the drainage bin 215 is fixedly connected to the reaction bin 1. A fixing rod 213 is fixedly connected to the bottom of the filter plate 205, and wedge blocks 214 are fixedly connected to both ends of the filter plate 205. Discharge ports are opened on both sides of the drainage bin 215, and a sliding plate 211 is arranged at the discharge port position. The sliding plate 211 is slidably connected to the drainage bin 215 through sliding nails, and a reset element is arranged between the sliding plate 211 and the drainage bin 215.

[0052] Among them, by arranging sliding plates 211 on both sides of the drainage bin 215, the filtered catalyst can be discharged through this position, and the phenomenon of leakage of the drainage bin 215 while the catalyst is no longer discharged can be avoided, which can effectively improve the effect of catalyst treatment in sewage.

[0053] Furthermore, the water inlet bin 5 and the drainage bin 215 are fixedly connected, a pressure plate 212 is fixedly connected above the filter plate 205, six groups of rotating blades 201 are arranged at an angle of sixty degrees on the surface of the transmission shaft 202, the pin shaft connecting the swing rod 204 and the filter plate 205 is slidably connected to the drainage bin 215, a sealing gasket is arranged at the sliding position of the pin shaft, a through hole is opened at the bottom of the drainage bin 215, a filter net is arranged at the position of the through hole, the filter plate 205 and the drainage bin 215 are both inclined at a certain angle, sliding grooves are arranged on both sides of the drainage bin 215, rubber pads are arranged inside the sliding grooves, and the pin shaft at one end of the swing rod 204 slides inside the sliding grooves.

[0054] Among them, by setting up multiple sets of sealing gaskets, it is also possible to avoid leakage of sewage to a certain extent, which can improve the efficiency of drainage. At the same time, by the rotation of the rotating blades 201, the efficiency of the filter plate 205 in treating the catalyst in the sewage can be controlled.

[0055] Furthermore, the side of the material receiving bin 306 is slidably connected to the drainage bin 215. The material receiving bin 306 is located directly below the sliding plate 211. A cylindrical cam 308 is slidably provided at one end of the sliding rod 307. The internal spline of the cylindrical cam 308 is connected to a matching rod 309. The matching rod 309 is rotatably connected to the pushing frame 315. A plurality of groups of spiral leaves 310 are fixedly connected to the surface of the matching rod 309. The surface of the matching rod 309 is rotatably connected to the mixing drum 304.

[0056] Among them, through the movement of the cylindrical cam 308 and the matching rod 309, the up and down movement of the pushing frame 315 can drive the movement of the matching rod 309, and the spiral leaves 310 on the surface of the matching rod 309 can be controlled to move up and down during the rotation process, so that the biomass carbon source and part of the sewage can be fully pre-mixed, which can improve the quality of denitrification of sewage by the biomass carbon source.

[0057] Furthermore, the interior of the mixing drum 304 is fixedly connected to a hose 305, the other end of the hose 305 is fixedly connected to a second piston cylinder 312, the interior of the second piston cylinder 312 is slidably connected to a second piston rod 311, the second piston rod 311 is located obliquely above the matching block 301, one end of the second piston cylinder 312 is fixedly connected to a storage box 4, the storage box 4 is fixedly connected to the water inlet bin 5, a drain pipe 303 is provided below the internal through hole of the drainage bin 215, the lower end of the drain pipe 303 is fixedly connected to the mixing drum 304, and the lower end of the mixing drum 304 is fixedly connected to the filter bin 2.

[0058] Among them, through the arrangement of the second piston rod 311 and the second piston cylinder 312, the dosage of the biomass carbon source can be effectively controlled according to the water quality and quantity of the sewage, avoiding the phenomenon of adding too much or too little biomass carbon source, and reducing a certain amount of use cost.

[0059] Furthermore, a water inlet pipe is arranged between the mixing drum 304 and the reaction chamber 1, and a blocking plate 314 is slidably connected inside the water inlet pipe. A sealing gasket is arranged at the sliding position of the blocking plate 314 and the water inlet pipe. A wave plate 313 is fixedly connected obliquely below the matching block 301, and the wave plate 313 is slidably connected to the drainage chamber 215. The wave plate 313 is located directly above the blocking plate 314, and one end of the pressure rod 113 is fixedly connected to the top of the material receiving chamber 306.

[0060] Among them, by slidingly connecting the blocking plate 314 inside the water inlet pipe, the pre-mixed biomass carbon source and sewage can be further added to the interior of the reaction chamber 1, avoiding the backflow of the sewage being stirred, and improving the denitrification effect of the denitrifier on the sewage.

[0061] Furthermore, the interior of the material receiving bin 306 is rotatably connected to a bottom plate via a pin shaft, a tension spring is arranged between the bottom plate and the material receiving bin 306, one-way valves are arranged inside the hose 305, the second piston cylinder 312, the first piston cylinder 115 and the spray pipe 116, a reset element is arranged inside the second piston cylinder 312, a support leg 3 is fixedly connected to the bottom of the filter bin 2, the pressure plate 212 is slidably connected to the first piston rod 114 at the bottom, a push rod 216 is also fixedly connected to the top of the adsorption disk 112, the push rod 216 is slidably connected to the reaction bin 1, and sealing gaskets are arranged at the connection positions between the stirring shaft 105 and the push rod 216 and the reaction bin 1.

[0062] Among them, by setting up multiple sets of one-way valves, the smoothness of the device during operation can be effectively improved. By setting up the push rod 216, when the pressure plate 212 pushes the push rod 216 to move, an impact force can be applied to it, which can improve the adsorption effect of the adsorption disk 112 under the push rod 216 on suspended matter.

[0063] Furthermore, the magnetic block 109 and the magnetic plate 111 are both made of magnetic materials with high corrosion resistance, a plurality of through holes are provided on the surface of the stirring blade 106, the push plate 107 is made of lightweight aluminum alloy material, the side of the gear ring 110 is rotatably connected to the L-shaped frame fixedly connected to the top of the reaction bin 1, the second piston cylinder 312 is detachably connected to the bottom of the drainage bin 215, the cylindrical cam 308 is rotatably connected to the drainage pipe 303 through a bracket, the filter plate 205 is fixedly connected to the wedge block 214, a spring sleeve is provided on the surface of the blocking plate 314, a blower is installed on the side of the reaction bin 1, an aeration pipe is provided at the air outlet end of the blower, the aeration pipe is connected to the interior of the reaction bin 1, and a one-way valve is provided inside, which can effectively improve the service life of some parts in the device and reduce the use cost, while improving the stability of the device and improving the effect of sewage denitrification treatment.

[0064] Furthermore, the present invention also proposes an operating method of a medical wastewater deep denitrification device, and the method steps are as follows:

[0065] S1: The driving shaft 202 is driven to rotate by the rotating blade 201, and the driving shaft 202 drives the swing rod 204 to swing through the rotating disk 203. The swing rod 204 pulls the filter plate 205 through the pin shaft to continuously move inside the drainage bin 215, which can clean the used catalyst in the sewage and improve the effect of sewage denitrification. At the same time, the filter plate 205 drives the rotating rod 208 to move, and the rotating rod 208 drives the two sets of cleaning plates 206 to move through the sliding column 207, so that the filtered catalyst can be cleaned and collected;

[0066] S2: The baffle 302 is driven to move by the matching block 301, so that part of the sewage can be transported to the inside of the mixing drum 304 through the drain pipe 303. At the same time, the matching block 301 can push the second piston rod 311 to slide inside the second piston cylinder 312 to transport the biomass carbon source to the inside of the mixing drum 304. Then, the weight of the catalyst falling into the receiving bin 306 can drive the receiving bin 306 to move downward. The receiving bin 306 can drive the cylindrical cam 308 to rotate through the sliding rod 307. The rotation of the cylindrical cam 308 can drive the spiral blade 310 on the surface of the matching rod 309 to pre-mix and stir the biomass carbon source and sewage.

[0067] S3: The motor 101 drives the rotating shaft 102 to rotate, and the rotating shaft 102 drives the half gear 103 and the rotating sleeve 117 to rotate. The rotation of the half gear 103 and the rotating sleeve 117 can drive the matching gear 104 to rotate forward and reverse, and the sewage inside the reaction chamber 1 can be stirred forward and reversely, thereby increasing the mixing rate of the denitrification agent and the sewage, and improving the effect of sewage denitrification;

[0068] S4: The movement of the receiving bin 306 and the pressure plate 212 can drive the pressure rod 113 and the push rod 216 to move up and down respectively. After the pressure rod 113 moves a certain distance, the pressure plate 212 will exert an impact force on the push rod 216, thereby causing the adsorption plate 112 to shake, which can improve the effect of the adsorption plate 112 on cleaning the catalyst in the sewage.

[0069] Working principle: After the present invention is installed, firstly, the additives such as biomass carbon source are added to the inside of the storage box 4, and then the denitrification agent storage box is connected to the inside of the first piston cylinder 115, and then the device is placed below the sewage discharge port, so that the upper part of the water inlet bin 5 is directly opposite to the lower part of the discharge port. Due to the different mud content in the sewage, when it is necessary to denitrify the sewage with less mud content, the sewage will flow downward through the water inlet bin 5. When the sewage flows downward inside the water inlet bin 5, it will be sprayed to the surface of the rotating blade 201 through the inclined plate, so that the impact force of the sewage discharge drives the rotating blade 201 to rotate. When the rotating blade 201 rotates, it will drive the turntable 203 to rotate through the transmission shaft 202. The rotation of the turntable 203 drives the swing rod 204 to rotate through the pin shaft. The rotation of the swing rod 204 can pull the filter plate 205 to slide inside the drainage bin 215 through the pin shaft. The movement of the filter plate 205 can perform catalyst filtration treatment on the discharged sewage, which can improve the treatment effect of organic matter and nitrogen.

[0070] When the filter plate 205 filters solids such as catalysts in sewage, a large amount of impurities such as catalysts will remain on the surface, which will affect the effect of the filter plate 205 on sewage filtering. As the filter plate 205 is closer to the drain outlet below the water inlet bin 5, the filter plate 205 will play a blocking role, thereby increasing the water pressure of sewage discharge. On the one hand, it can prevent the filter plate 205 from being affected by excessive catalysts on the surface and the filter plate 205 from being clogged by catalysts, thereby improving the efficiency of sewage filtration. On the other hand, it can prevent the filter plate 205 from filtering organic matter that is beneficial to denitrification, thereby accelerating the speed at which organic matter is discharged into the reaction bin 1 through the drain bin 215, thereby improving the efficiency of denitrification and organic matter treatment.

[0071] When the filter plate 205 moves, the rotating rod 208 can be driven to move synchronously. The rotating rod 208 can drive the gears 209 at both ends to move through the pin shaft. When the gear 209 moves, it can cooperate with the rack 210 to rotate. When the rotating rod 208 moves to a position close to the water inlet bin 5, the gear 209 can rotate forward to drive the rotating rod 208 to rotate. The rotation of the rotating rod 208 will drive the two groups of cleaning plates 206 to move to the middle position of the filter plate 205 through two groups of arc grooves in opposite directions. On the contrary, when the rotating rod 208 moves to a position away from the water inlet bin 5, the two groups of cleaning plates 206 will move to both sides on the surface of the filter plate 205. When the filter plate 205 moves to the position of the sliding plate 211, the movement of the two groups of cleaning plates 206 can push the catalyst out of the drainage bin 215, which can facilitate the filter plate 205 to perform solid-liquid separation on the subsequent sewage;

[0072] When the filter plate 205 moves, it will drive the two groups of wedge blocks 214 to move. When the wedge blocks 214 move, they will push the sliding plate 211 to slide on the surface of the three groups of sliding nails through the inclined surface, which is convenient for the discharge of the catalyst pushed by the two groups of cleaning plates 206, and can make the catalyst fall into the inside of the two groups of receiving bins 306, which is convenient for its collection. At the same time, the movement of the filter plate 205 can drive the fixed rod 213 to move, and the movement of the fixed rod 213 can scrape the bottom of the drainage bin 215, which can prevent the catalyst and other impurities from adhering to the bottom of the drainage bin 215 and affecting the subsequent drainage effect;

[0073] At the same time, the movement of the filter plate 205 will drive the matching block 301 to slide at the bottom of the drainage chamber 215 through magnetic attraction. The sliding of the matching block 301 can drive the baffle plate 302 to slide inside the drainage chamber 215. When the matching block 301 follows the filter plate 205 to move closer to the water inlet chamber 5, the through hole on the surface of the drainage chamber 215 can be intermittently opened. At this time, due to the high water pressure of the sewage, part of the sewage can flow into the interior of the mixing drum 304 through the drainage pipe 303 below the through hole. In addition, the closer the matching block 301 is to the water inlet chamber 5, the more the baffle plate 302 can slide inside the drainage chamber 215. Position movement can continuously push the second piston rod 311 to slide inside the second piston cylinder 312, and can draw additives such as biomass carbon source inside the storage box 4 into the second piston cylinder 312, and then the second piston cylinder 312 will transport the biomass carbon source to the inside of the mixing cylinder 304 through the hose 305. By controlling the distance and speed of the second piston rod 311 moving inside the second piston cylinder 312, the amount of biomass carbon source extracted each time can be controlled, thereby controlling the ratio of the mixed agent added, and improving the quality of sewage denitrification;

[0074] When the catalyst falls into the receiving bin 306 for collection, since the receiving bin 306 is made of light material and has a small tension spring, when the catalyst falls into it, it will directly drive the receiving bin 306 to move downward quickly, and the downward movement of one group of receiving bins 306 can drive the sliding rod 307 to move downward, and the downward movement of the sliding rod 307 can drive the cylindrical cam 308 to rotate, and the rotation of the cylindrical cam 308 can drive the internal matching rod 309 to rotate, and the rotation of the matching rod 309 can drive the multiple groups of spiral leaves 310 to rotate, and the spiral leaves 310 can rotate. The rotation of 10 can stir the sewage and the mixture poured into the inside to make them pre-mixed, which can ensure that the reagent is fully in contact with the sewage and improve the uniformity and efficiency of the reaction. At the same time, the up and down movement of another group of receiving bins 306 can drive the push frame 315 to move up and down. Since the cylindrical cam 308 and the matching rod 309 are splined, the up and down movement of the push frame 315 can push the matching rod 309 to slide inside the cylindrical cam 308, which can drive the multiple groups of spiral leaves 310 to move up and down while rotating, which can effectively improve the quality and efficiency of the pre-mixing between the biomass carbon source and the sewage;

[0075] When the matching block 301 drives the baffle plate 302 to move away from the water inlet bin 5, the baffle plate 302 no longer blocks the through hole, and part of the sewage will directly flow into the interior of the mixing drum 304 through the drain pipe 303 below the through hole, and then be poured into the interior of the reaction bin 1 through the water inlet pipe on the side of the mixing drum 304, which can speed up the discharge of sewage into the interior of the reaction bin 1 and effectively improve the efficiency of sewage denitrification treatment. When the catalyst is collected again inside the receiving bin 306, the tension spring matched with it will lose its tension, so that the bottom plate of the receiving bin 306 will rotate around the pin shaft, and the receiving bin 306 will be The bottom of the silo 306 will open to discharge the catalyst into the interior of the filter bin 2 for collection. At the same time, the reset element between the silo 306 and the drainage bin 215 will drive it to move upward again, so that the silo 306 can collect the catalyst again. At this time, the reset element located between the silo 306 and the drainage bin 215 will also quickly drive the matching rod 309 to move upward. By controlling the tension of the tension spring, the frequency of the up and down movement of the silo 306 can be effectively controlled, and the efficiency of the spiral blade 310 in stirring and mixing sewage and biomass carbon source can be effectively controlled, which is convenient for operators to control.

[0076] After the sewage discharged from the drainage bin 215 is treated with the catalyst, it will flow directly into the reaction bin 1, which is convenient for subsequent stirring and denitrification. At the same time, the movement of the matching block 301 can drive the wave plate 313 to slide at the bottom of the drainage bin 215. The movement of the wave plate 313 can intermittently push the blocking plate 314 to slide inside the water inlet pipe on the side of the mixing drum 304, so that it can be intermittently opened and closed. On the one hand, the biomass carbon source and sewage in the mixing drum 304 can be fully pre-mixed. On the other hand, it can avoid the phenomenon of backflow of the sewage being stirred in the reaction bin 1, which affects the denitrification effect in the reaction bin 1.

[0077] After the sewage and the biomass carbon source are stirred and discharged into the reaction chamber 1, the motor 101 is started to rotate and drive the rotating shaft 102 to rotate. The rotation of the rotating shaft 102 can drive the half gear 103 and the rotating sleeve 117 to rotate. Since the teeth on the surface of the half gear 103 are in the same direction as the teeth inside the gear ring 110, when the half gear 103 rotates a certain angle, the meshing transmission drives the matching gear 104 to rotate. When the half gear 103 is no longer meshed with the matching gear 104, the gear ring 110 driven by the rotating sleeve 117 will mesh with the matching gear 104 to drive it to reverse. The continuous forward and reverse rotation of the matching gear 104 can drive multiple groups of stirring blades 106 to fully stir the sewage inside the reaction chamber 1, which can effectively improve the mixing rate between the denitrification agent and the sewage, and facilitate the denitrification of the sewage and the quality of organic matter treatment.

[0078] When the stirring shaft 105 rotates, it will also drive multiple groups of pusher plates 107 to rotate at the bottom of the reaction chamber 1. Since the sewage will continuously produce a large amount of organic matter and impurities during the denitrification process, the rotation of the pusher plates 107 can prevent the organic matter from sinking to the bottom and can fully mix and stir it with the denitrification agent. At the same time, the rotation of the pusher plates 107 can drive the magnetic block 109 to rotate inside the reaction chamber 1. When the pusher plates 107 drive the magnetic block 109 to rotate to the position of the magnetic plate 111, the magnetic connection can drive the magnetic plate 111 to open. At the same time, the blocking plate 314 will move upward through the spring sleeve, thereby pouring the pre-mixed denitrification agent inside the stirring drum 304 into the interior of the reaction chamber 1. When the magnetic block 109 continues to move, the magnetic plate 111 will be demagnetized and closed again, which can further prevent the sewage being stirred inside the reaction chamber 1 from flowing back.

[0079] When the two groups of receiving bins 306 collect catalysts and move up and down, the movement of the receiving bins 306 can drive the two groups of pressure rods 113 to move up and down, and the up and down movement of the pressure rods 113 can drive the adsorption disk 112 to move up and down inside the reaction bin 1. Since the adsorption disk 112 is made of activated carbon material, after adding flocculants and other denitrifying agents in the reaction bin 1, the suspended matter in the sewage will gather into larger flocs and float above the reaction bin 1. At this time, the movement of the adsorption disk 112 can adsorb the suspended matter. At the same time, the up and down movement of the adsorption disk 112 can increase its adsorption range and improve the efficiency of cleaning the suspended matter. Since the volume of the flocs is large and the adsorption disk 112 has a porous structure, it can provide a large number of adsorption sites, so that the flocs can be stably adsorbed, and the sewage can be prevented from impacting the adsorbed flocs during the stirring process, thereby improving the adsorption effect of the adsorption disk 112.

[0080] At the same time, when the filter plate 205 slides inside the drainage bin 215, it drives the pressing plate 212 to move. When the pressing plate 212 moves downward, it can push the first piston rod 114 to slide inside the first piston cylinder 115, and can spray the flocculant and other denitrifying agents on the surface of the adsorption disk 112 through the spray pipe 116 arranged on the surface of the first piston cylinder 115. Since the adsorption disk 112 continuously moves up and down in the sewage inside the reaction bin 1, on the one hand, it can avoid the denitrifying agent from being directly sprayed into the sewage for mixing and stirring, and on the other hand, it can make the denitrifying agent fully mixed with the sewage being stirred, so that it is evenly distributed above the sewage, which is convenient for the stirring blade 106 to stir it, and can effectively improve the quality of sewage denitrification;

[0081] As the receiving bin 306 is subjected to the gravity of the catalyst, the pressure plate 212 driven by the filter plate 205 is moving to a position away from the water inlet bin 5. As the catalyst inside the receiving bin 306 is continuously increasing, the adsorption disc 112 is continuously descending. When the pressure rod 113 drives the adsorption disc 112 to move downward, the continuous movement of the pressure plate 212 can push the push rod 216 to move downward. The downward movement of the push rod 216 can cause the adsorption disc 112 that is descending to be subjected to a downward impact force. As the connection position between the pressure rod 113 and the adsorption disc 112 is elastically arranged, the adsorption disc 112 will shake, thereby further improving the adsorption effect of the adsorption disc 112 on suspended matter.

[0082] During the stirring reaction of the sewage, the blower can be turned on according to the situation to transport air to the interior of the reaction chamber 1 through the aeration pipe, so as to facilitate the denitrification of the sewage inside the reaction chamber 1 and effectively improve the effect of the sewage denitrification treatment.

[0083] While embodiments of the present invention have been shown and described, those skilled in the art will appreciate that numerous changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and scope of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A medical wastewater deep denitrification device, comprising a reaction chamber (1), a filtration chamber (2) and a water inlet chamber (5), characterized in that: A stirring assembly (100) for stirring and denitrifying sewage is arranged above the reaction chamber (1); the filtering chamber (2) is fixedly connected to the side of the reaction chamber (1); a gain assembly (300) for premixing a denitrifying agent and sewage is arranged above the filtering chamber (2); and a filtering assembly (200) for filtering a catalyst in the sewage is arranged above the gain assembly (300); The stirring assembly (100) comprises a motor (101), the motor (101) is fixedly connected to the reaction chamber (1) via an L-shaped frame, the output end of the motor (101) is fixedly connected to a rotating shaft (102), the surface of the rotating shaft (102) is fixedly connected to a half gear (103) and a rotating sleeve (117), one end of the rotating sleeve (117) is fixedly connected to a gear ring (110), the half gear (103) and the gear ring (110) are both meshedly connected to a matching gear (104), a stirring shaft (105) is fixedly connected below the matching gear (104), and a plurality of stirring blades (106) and a push plate (107) are fixedly connected to the surface of the stirring shaft (105); The filter assembly (200) comprises a rotating blade (201) and a filter plate (205). The filter assembly (200) controls the gain assembly (300) through the filter plate (205) to pre-mix the added denitrifying agent with the sewage. The rotating blade (201) is rotatably connected to the water inlet tank (5). The interior of the rotating blade (201) is fixedly connected to a transmission shaft (202). Both ends of the transmission shaft (202) are fixedly connected to a rotating disk (203). One end of the rotating disk (203) is rotated by a pin. A swing rod (204) is connected, the swing rod (204) is rotatably connected to the filter plate (205) through a pin shaft, the bottom of the filter plate (205) is slidably connected to a drainage bin (215), the top of the filter plate (205) is rotatably connected to a rotating rod (208), the surface of the rotating rod (208) is provided with two groups of arc grooves in opposite directions, the rotating rod (208) is slidably provided with two groups of sliding columns (207) through the arc grooves, and one end of the sliding column (207) is fixedly connected to a cleaning plate (206); The gain component (300) comprises a matching block (301) and two groups of material receiving bins (306); the matching block (301) is magnetically connected to the filter plate (205); a baffle (302) is fixedly connected to the top of the matching block (301); the baffle (302) is slidably connected to the drainage bin (215); a sliding rod (307) is fixedly connected to one side of one group of the material receiving bins (306); and a pushing frame (315) is fixedly connected to the top of the other group of the material receiving bins (306).

2. A medical wastewater deep denitrification device according to claim 1, characterized in that: One end of the push plate (107) is fixedly connected to a scraper (108), and the surface of the scraper (108) is fixedly connected to a magnetic block (109). The scraper (108) and the magnetic block (109) are both slidably connected to the reaction chamber (1). The interior of the reaction chamber (1) is detachably connected to an adsorption disk (112), and the upper part of the adsorption disk (112) is elastically connected to two groups of pressure rods (113). The upper part of the reaction chamber (1) is fixedly connected to a first piston cylinder (115), and the first piston cylinder (115) is fixedly connected to the upper part of the reaction chamber (1). A first piston rod (114) is slidably connected to the interior of a piston cylinder (115); a liquid spraying pipe (116) is fixedly connected to the surface of the first piston cylinder (115); a plurality of liquid spraying ports are fixedly connected to the surface of the liquid spraying pipe (116); a slide groove is also provided inside the reaction chamber (1); a magnetic plate (111) is slidably connected to the interior of the slide groove; the magnetic block (109) and the magnetic plate (111) are magnetically connected; and a return spring is provided between the magnetic plate (111) and the reaction chamber (1).

3. A medical wastewater deep denitrification device according to claim 2, characterized in that: Two sets of gears (209) are fixedly connected at both ends of the rotating rod (208); a rack (210) is meshedly connected below the gear (209); the rack (210) is fixedly connected to a drainage bin (215); the drainage bin (215) is fixedly connected to a reaction bin (1); a fixing rod (213) is fixedly connected to the bottom of the filter plate (205); wedge blocks (214) are fixedly connected to both ends of the filter plate (205); discharge ports are provided on both sides of the drainage bin (215); a sliding plate (211) is provided at the discharge port; the sliding plate (211) is slidably connected to the drainage bin (215) via sliding pins; a reset element is provided between the sliding plate (211) and the drainage bin (215).

4. A medical wastewater deep denitrification device according to claim 3, characterized in that: The water inlet bin (5) and the drainage bin (215) are fixedly connected, a pressure plate (212) is fixedly connected above the filter plate (205), six groups of rotating blades (201) are arranged at an angle of sixty degrees on the surface of the transmission shaft (202), the pin shaft connecting the swing rod (204) and the filter plate (205) is slidably connected to the drainage bin (215), a sealing gasket is arranged at the sliding position of the pin shaft, a through hole is opened at the bottom of the drainage bin (215), a filter net is arranged at the position of the through hole, the filter plate (205) and the drainage bin (215) are both inclined at a certain angle, sliding grooves are arranged on both sides of the drainage bin (215), a rubber pad is arranged inside the sliding groove, and the pin shaft at one end of the swing rod (204) slides inside the sliding groove.

5. A medical wastewater deep denitrification device according to claim 4, characterized in that: The side of the material receiving bin (306) is slidably connected to the drainage bin (215), and a reset element is provided at the sliding position. The material receiving bin (306) is located directly below the sliding plate (211). A cylindrical cam (308) is slidably provided at one end of the sliding rod (307). The internal spline of the cylindrical cam (308) is connected to a matching rod (309). The matching rod (309) is rotatably connected to the pushing frame (315). A plurality of groups of spiral leaves (310) are fixedly connected to the surface of the matching rod (309). The surface of the matching rod (309) is rotatably connected to a mixing drum (304).

6. A medical wastewater deep denitrification device according to claim 5, characterized in that: The interior of the mixing drum (304) is fixedly connected to a hose (305), the other end of the hose (305) is fixedly connected to a second piston cylinder (312), the interior of the second piston cylinder (312) is slidably connected to a second piston rod (311), the second piston rod (311) is located obliquely above the matching block (301), one end of the second piston cylinder (312) is fixedly connected to a storage box (4), the interior of the (4) is filled with a biomass carbon source, the storage box (4) is fixedly connected to the water inlet bin (5), a drain pipe (303) is provided below the internal through hole of the drain bin (215), the lower end of the drain pipe (303) is fixedly connected to the mixing drum (304), and the lower end of the mixing drum (304) is fixedly connected to the filter bin (2).

7. A medical wastewater deep denitrification device according to claim 6, characterized in that: A water inlet pipe is provided between the mixing drum (304) and the reaction chamber (1), a blocking plate (314) is slidably connected inside the water inlet pipe, a sealing gasket is provided at the sliding position between the blocking plate (314) and the drain pipe, a wave plate (313) is fixedly connected obliquely below the matching block (301), the wave plate (313) is slidably connected to the drain chamber (215), the wave plate (313) is located directly above the blocking plate (314), and one end of the pressure rod (113) is fixedly connected to the top of the material receiving chamber (306).

8. A medical wastewater deep denitrification device according to claim 7, characterized in that: The interior of the material receiving bin (306) is rotatably connected to a bottom plate via a pin shaft, a tension spring is provided between the bottom plate and the material receiving bin (306), the interiors of the hose (305), the second piston cylinder (312), the first piston cylinder (115) and the liquid spraying pipe (116) are all provided with one-way valves, the interior of the second piston cylinder (312) is provided with a reset element, the bottom of the filter bin (2) is fixedly connected to a support leg (3), the lower part of the pressure plate (212) is slidably connected to the first piston rod (114), the upper part of the adsorption disk (112) is also fixedly connected to a push rod (216), the push rod (216) is slidably connected to the reaction bin (1), and sealing gaskets are provided at the connection positions of the stirring shaft (105) and the push rod (216) and the reaction bin (1).

9. A medical wastewater deep denitrification device according to claim 8, characterized in that: The magnetic block (109) and the magnetic plate (111) are both made of magnetic materials with high corrosion resistance. The surface of the stirring blade (106) is provided with a plurality of through holes. The push plate (107) is made of a lightweight aluminum alloy material. The side of the gear ring (110) is rotatably connected to an L-shaped frame fixedly connected to the top of the reaction chamber (1). The second piston cylinder (312) is detachably connected to the bottom of the drainage chamber (215). The cylindrical cam (308) is rotatably connected to the drainage pipe (303) via a bracket. The filter plate (205) is fixedly connected to the wedge block (214). A spring sleeve is provided on the surface of the blocking plate (314). A blower is installed on the side of the reaction chamber (1). An aeration pipe is provided at the air outlet of the blower. The aeration pipe is connected to the interior of the reaction chamber (1) and a one-way valve is provided inside the aeration pipe.

10. The operating method of the medical wastewater deep denitrification device according to claim 9, characterized in that: The method steps are as follows: S1: The driving shaft (202) is driven to rotate by the rotating blade (201), and the driving shaft (202) drives the swinging rod (204) to swing through the rotating disk (203). The swinging rod (204) pulls the filter plate (205) through the pin shaft to continuously move inside the drainage chamber (215), so as to clean the catalyst after the sewage denitrification reaction. While ensuring the sewage denitrification effect, the suspended matter in the effluent meets the environmental protection discharge requirements. At the same time, the filter plate (205) drives the rotating rod (208) to move, and the rotating rod (208) drives the two sets of cleaning plates (206) to move through the sliding column (207), so as to clean and collect the filtered catalyst; S2: The matching block (301) drives the baffle (302) to move, so that part of the sewage can be transported to the inside of the mixing drum (304) through the drain pipe (303). At the same time, the matching block (301) can push the second piston rod (311) to slide inside the second piston cylinder (312), so as to transport the biomass carbon source to the inside of the mixing drum (304). Then, the weight of the collected catalyst falling into the inside of the receiving bin (306) can drive the receiving bin (306) to move downward. The receiving bin (306) can drive the cylindrical cam (308) to rotate through the sliding rod (307). The rotation of the cylindrical cam (308) can drive the spiral blades (310) on the surface of the matching rod (309) to pre-mix and stir the biomass carbon source and the sewage. S3: The motor (101) drives the rotating shaft (102) to rotate, and the rotating shaft (102) drives the half gear (103) and the rotating sleeve (117) to rotate. The rotation of the half gear (103) and the rotating sleeve (117) can drive the matching gear (104) to rotate forward and reverse, so that the sewage inside the reaction chamber (1) can be stirred forward and reverse, thereby increasing the mixing rate of the denitrification agent and the sewage, and improving the effect of sewage denitrification; S4: The movement of the receiving bin (306) and the pressure plate (212) can respectively drive the pressure rod (113) and the push rod (216) to move up and down. After the pressure rod (113) moves a certain distance, the pressure plate (212) will exert an impact force on the push rod (216), thereby causing the adsorption plate (112) to shake, thereby improving the effect of the adsorption plate (112) on separating the water discharged from the reaction bin from the catalyst.

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