72results about How to "Improve current utilization" patented technology

The invention discloses an electrochemical biological combined denitrification reactor, which comprises a tank body, an electrode plate, a particle electrode, an aerating apparatus and a constant current transformer. Both ends of the tank body are respectively provided with a water inlet and a water outlet. The electrode plate comprises an anode arranged on the center part of the tank body and a cathode which surrounds the anode to be arranged at the position close to the tank wall; the anode and the cathode are respectively connected with an anode and a cathode of the constant current transformer; the particle electrode is filled between the anode and the cathode; and the aerating apparatus comprises a fine bubble aerator arranged on the bottom of the tank body and an air pump connected with the fine bubble aerator. The device of the invention has compact and simple structure, small occupied area, high current utilization rate and rapid biofilm formation of microbe, can simultaneously remove various pollutants, such as organic matter, ammonia nitrogen and the like, has high denitrification efficiency and low energy consumption, is easy to regulate and control and is a multiple three-dimensional electrode biomembrane sewage treatment device integrating biology with an electric microfield into whole body.

The present invention discloses a taper magnetic bearing switched reluctance motor and a control method thereof. The motor is composed of a switched reluctance motor and two taper magnetic bearings; the bias windings of the two taper magnetic bearings are connected in series with the winding of the switched reluctance motor to a form m-phase torque winding; two vertical suspension windings of each taper magnetic bearing are configured to control the suspension with two degrees of freedom, have four vertical degrees of freedom and are able to perform decoupling control; the axial suspension windings of the two taper magnetic bearings are connected in series to form an axial suspension winding for controlling the axial suspension; the motor is able to independently control the opening and closing angles of a torque winding current and power circuit to control the rotating speed and the torque in real time; and the motor is able to control five suspension winding currents to regulate the suspension forces in five directions so as to realize the suspension with five degrees of freedom. The taper magnetic bearing switched reluctance motor and the control method thereof are small in control variables, simple in suspension control and low in cost of a suspension system power converter.

The invention provides a new process for micro electric field reinforced low-carbon nitrogen removal, which is particularly suitable for treating waste water with high ammonia nitrogen content and high organic substance content. The process comprises anaerobic fermentation reaction and autotrophic synchronous nitrification-denitrification reaction, wherein after the waste water to be treated enters an anaerobic fermentation reactor and is subjected to anaerobic fermentation reaction treatment, most of organic substances are converted into methane through anaerobic fermentation to perform energy recycle and avoid directly converting the organic substances into CO2 to be discharged. The waste water after the anaerobic treatment has few organic substances and then enters a complex three-dimensional electrode-biological membrane reactor. The process realizes autotrophic synchronous nitrification-denitrification by domesticating carbon autotrophic nitrifying bacteria and hydrogen autotrophic denitrifying bacteria attached to particle electrodes in the complex three-dimensional electrode-biological membrane reactor, finally fulfills the nitrogen removal purpose of directly converting the ammonia nitrogen into the nitrogen, does not need to add the organic substances, basically has no CO2 emission, and is a controllable, efficient, low-consumption, 'low-carbon emission' and environment-friendly new process.

The invention discloses a vector type permanent magnetic brushless motor control method. When a motor starts, by use of a constant-torque zone current closed-loop control method, a permanent magnetic brushless motor is controlled, when a PWM duty ratio output by an electric current loop proportional integral controller reaches a set threshold, by use of a constant-power weak-magnetic zone torque closed-loop control method, the permanent magnetic brushless motor is controlled; and in the constant-power weak-magnetic zone torque closed-loop control method, when a weak-magnetic control advanced conduction overlap angle delta theta FW output by a torque ring proportional integral controller is lower than a set threshold, by use of a constant-torque zone current closed-loop control method, the permanent magnetic brushless motor is controlled.

The invention provides a comparator and a relaxation oscillator. The comparator comprises a comparator circuit including a current mode comparator circuit; and the current mode comparator circuit consists of a first current mode comparator circuit and a second current mode comparator circuit, wherein the first current mode comparator circuit and the second current mode comparator circuit are connected with a first input terminal and a second input terminal of the comparator circuit electrically. The first current mode comparator circuit includes two N type MOS tubes and grids of the two N type MOS tubes are connected electrically; and the second current mode comparator circuit includes two P type MOS tubes and grids of the two P type MOS tubes are connected electrically. The oscillator includes the comparator. According to the invention, the production cost can be lowered; the development period can be shortened; the frequency stability is improved; and the ultra-low power consumption is realized.

The invention relates to a permanent magnet synchronous motor torque control method. The method comprises the following steps: (1) a MTPA (Maximum Torque Per Ampere) angle experiment is carried out, and a two-dimensional table for the torque in relative to the MTPA angle and target current is drawn; (2) the best MTPA angle is fit to a quartic curve in relative to the target current i<s>, and a quartic polynomial for the curve is obtained; (3) a bench experiment is carried out, and a two-dimensional table for the target current in relative to the current rotation speed and the target torque is drawn; (4) according to the above tables, the actually-needed target current is obtained through a proportional interpolation algorithm; and (5) according to the obtained target current, corresponding voltage is calculated, and the motor is controlled. by adopting the method of the invention, the current utilization rate of the motor is improved; the torque control accuracy is ensured in a full range; and the workload for preliminary data acquisition and later data processing optimization is reduced.

The invention relates to a voltage-controlled oscillator which comprises a voltage-controlled oscillating circuit. The voltage-controlled oscillating circuit comprises an LC resonance unit, an oscillation-starting oscillating unit and a bias voltage adjustment unit. The oscillation-starting oscillating unit comprises a first transistor and a second transistor which are in cross coupling, the drain of the first transistor and the drain of the second transistor are connected with the two ends of a differential inductor of the LC resonance unit respectively, the voltage of the drains is changed along with changes of the same bias voltage, and the sources receive the same bias current. The bias voltage adjustment unit provides the bias voltage to the oscillation-starting oscillating unit and adjusts the bias voltage to enable conductive angles of the first transistor and the second transistor to be changed from 0 degree to 180 degrees, and therefore the LC resonance unit starts to oscillate in a CLASS-AB mode and oscillates in a CLASS-C mode. In addition, the voltage-controlled oscillating circuit is provided with a bias current adjustment unit, and the bias current adjustment unit provides the bias current to the oscillation-starting oscillating unit to achieve power dissipation configuration and phase noise configuration.

The invention provides a high-precision I / O (Input / Output) signal phase unbalance correcting circuit in a low-intermediate frequency wireless receiver. The high-precision I / O signal phase unbalance correcting circuit achieves the high image rejection requirement. According to the high-precision I / O signal phase unbalance correcting circuit, an I-path signal and a Q-path signal are coupled by a current summing circuit by adopting a matrix coupling circuit, and therefore phase unbalance correction is realized in the coupling process, wherein the coupling coefficient determines the magnitude of correction scope. According to the invention, an upper matrix coupling circuit is realized by adopting a method of intersecting two groups of geminate transistors, and the coupling coefficient is controlled by a variable current source and a fixed current source. The variable current source is realized by an 8-bit current-type DAC (Digital-to-Analog Converter). The high-precision I / O signal phase unbalance correcting circuit can be used for correcting the phase deviation precisely, wherein the correcting precision is up to 0.04 DEG, the correcting scope is + / -7DEG, and magnitude unbalance is not caused. The high-precision I / O signal phase unbalance correcting circuit is free from a high-precision ADC (Analog-to-Digital Converter) module and a high-performance DSP (Digital Signal Processor) chip, simple in implementation method, high in integration level and greatly-reduced in power consumption.

The invention discloses a conical magnetic suspension dual-passage switch reluctance machine and a control method. The machine comprises a switch reluctance machine and two conical magnetic bearings, wherein a bias winding of each conical magnetic bearing is connected in series with a passage winding of the switch reluctance machine to form a three-phase torque winding, two radial suspension windings of each conical magnetic bearing control suspension of two degrees of freedom, total four radial degrees of freedom exit, radial suspension forces can be in decoupling control, and a torque and axial suspension are further controlled by currents of two passage windings of the switch reluctance machine. By the switch reluctance machine and the control method, an axial suspension winding is not needed independently, suspension of five degrees of freedom can be achieved, the machine system is high in integration, a few in control variable and high in redundancy, and is simple to control.

The invention discloses a preparation method of a cup-shaped flexible wheel and a device thereof. A circular slab is tightened at the end of a core die by a tail top. A positive wire of a pulse powersupply is connected with the core die, and a negative wire is directly connected with each rotary wheel of a rotary wheel assembly. The circular slab is first spun and deformed into a cup-shaped workpiece with both inner and outer walls being straight walls by one rotary wheel. Then the cup-shaped workpiece is spun and deformed into two thickened cup-shaped workpieces with different straight wallthickness by another two rotary wheels, and a thicker smooth section is used as a tooth profile reserved section. Finally, the tooth profile reserved section is spun by one toothed rotary wheel to form a circle tooth profile around the outer circumference. At last, a small amount of cutting process is carried out to complete the processing process from the circular slab to the cup-shaped flexiblewheel workpiece. According to the cup - shaped flexible wheel manufacturing process based on plastic forming, streamline formed in the process of deformation can be completely retained, and the service life of parts is prolonged advantageously. The advantage of the method is more obvious for flexible wheels with an extremely small thickness.

The invention discloses an electric flocculation device for disposing industrial wastewater difficult to biodegrade, and belongs to the technical field of electrochemistry. The main body structure comprises a vertical type subsider, a rotating motor, a rotating anode and a porous hollow cylindrical cathode. When the device operates, the wastewater flows from a water inlet at the upper end, a powersource is started, the anode and the cathode are powered on to react, and the rotating motor drives the anode to rotate. The rotating anode makes the wastewater be at the turbulent flow state alwaysin the reaction, and thus the phenomena of passivation and concentration polarization of the surface of the counter electrodes are effectively slowed down. The cathode promotes the generation rate andthe number of nascent hydrogen with the high adhesion due to the great large specific surface area, and pollutants in the wastewater are adhered to float together. The electric flocculation device issuitable for disposing industrial wastewater with any components, and industrialized application of the electric flocculation technique is achieved.

The invention provides an LED chip with a DBR (distributed Bragg reflector) type current blocking layer and a production method of the LED chip. The production method includes the steps: firstly, providing a sapphire substrate, forming a luminous epitaxial layer on the upper surface of the sapphire substrate, etching a groove with a waved side wall and a flat bottom surface in a P-pad region of the luminous epitaxial layer, forming a dielectric DBR on the surface of the groove to serve as the current blocking layer, and enabling the current blocking layer to form a concave structure with a waved side wall and a flat bottom surface; secondly, forming a transparent conducting layer on the luminous epitaxial layer and the concave structure, and etching the transparent conducting layer to enable the concave structure and an N region to be exposed outside; and finally, producing a P-pad on the concave structure, and producing an N-pad on the N region so that the LED chip is produced. The problems that a current blocking layer and a highly reflective electrode are low in adhesion and easy to fall off, and an LED chip is light-absorbing of a P electrode, low in current utilization rate ant the like in the prior art can be solved.

The invention relates to a grid-control cold cathode X-ray tube which comprises a vacuum cavity, an anode assembly, a grid-control electrode and a cathode assembly. The anode assembly comprises an anode target, an anode metal hood and an anode connection pillar. The anode target, the anode metal hood and the cathode assembly are packaged in the vacuum cavity. The anode target is embedded in the anode metal hood and used for producing X rays. The normal line of a plane of the anode target is connected with an anode and a cathode to form an inclination angle which is (12+ / -1) degrees. The cathode assembly comprises a cathode substrate and a cathode material which is arranged on the cathode substrate. The cathode hood serving as the grid-control electrode covers a cathode installation part which comprises a cathode lead and a grid lead. The cathode hood is made of metal. A hole is formed in the cathode hood and located in the connection line of the cathode substrate and the anode target. High voltage is led in through the anode connection pillar. The cathode hood serving as the grid-control electrode is connected with the grid lead. The cathode substrate is connected with the cathode lead. Voltage is exerted between two electrodes led out from the grid lead and the cathode lead.

The invention relates to a RF voltage-controlled oscillator. The RF voltage-controlled oscillator comprises an adaptive bias circuit, an oscillation circuit and an LC resonant circuit; the oscillation circuit is connected with the adaptive bias circuit and the LC resonant circuit; the adaptive bias circuit outputs a bias voltage to the oscillation circuit; the oscillation circuit starts up the LC resonant circuit in a B type state to enable the LC resonant circuit to start oscillation based on the bias voltage, and the oscillation amplitude is increased gradually; and the oscillation circuit enters a C type state when the amplitude value of the bias voltage is smaller than a first threshold value, and increase of the oscillation amplitude is stopped when the amplitude value of the bias voltage is smaller than a second threshold value. As the adaptive bias circuit outputs the bias voltage to enable the oscillation circuit to start up the LC resonant circuit in the B type state, then the LC resonant circuit starts oscillation, and then the resonant circuit enters the C type state for oscillation along with the increase of the oscillation amplitude, the oscillation is easily started and high current utilization rate is obtained. As a compensatory resistor is added between the output ends of a first transistor and a second transistor and the ground, negative feedback stability is kept, and the stability within a wide working range is guaranteed.

The invention discloses a hybrid radial conical magnetic bearing switch reluctance machine and a control method. The machine comprises a switch reluctance machine, two radial magnetic bearings and two conical magnetic bearings, wherein one of the radial magnetic bearings and one of the conical magnetic bearings are arranged at one side of the switch reluctance machine, the other two bearings are arranged at the other side of the switch reluctance machine, bias windings of four magnetic bearings are connected in series with a winding of the switch reluctance machine to form an m-phase torque winding, torque control is the same as a traditional control mode of the switch reluctance machine, five directional suspension forces are only related to a current of the m-phase torque winding and a current of each directional suspension winding, the suspension forces are decoupled to one another, and the torque and the suspension forces can be in decoupling control. The machine and the control machine are high in integration, a few in control variable and simple in suspension control, and a suspension system power converter is low in cost.

The invention discloses a totally-closed liquid-state cathode rare earth fused salt electrolytic cell which comprises a graphite cell body, wherein a liquid-state cathode is paved at the bottom of the graphite cell body; the graphite cell body is provided with an annular ring-shaped cell cover; a cylindrical anode is arranged in a ring of the annular cell cover, so as to realize the sealing of a cell mouth of the graphite cell body; a siphon port, a protection gas port and a feed port are formed in the annular cell cover; the anode is uniformly divided into four parts along the axial direction in a crossed manner; and the middle part of the upper part of each part of the anode is hollowed out and is provided with a steel claw fixing area. According to the totally-closed liquid-state cathode rare earth fused salt electrolytic cell, the solution loss and the secondary oxidation of metal can be reduced, the utilization rate of current is improved, and the distance between the cathode and the anode can be stably controlled, so that the normal operation of an electrolysis process can be facilitated; and the improved anode structure can improve the use efficiency of the anode, the anode consumption cost is reduced, introduced inertia protective gas can be used for prolonging the service lives of the anode and the cell body, the totally-closed cell-type design can enable the volatilization loss of a fluoride to be reduced, and the continuous and stable production can be facilitated.

The invention discloses a four-degree-of-freedom composite structure bearingless switch reluctance machine and a controlling method thereof. The motor is composed of a switch reluctance machine and two radial magnetic bearings. Each magnetic bearing stator is formed by four E-type structures; one suspension winding and one armature winding wind around a middle tooth of each E-type structure; and one bias winding and one armature winding wind around two tooth windings. One armature winding winds around each tooth of the switch reluctance machine and crosses over the two magnetic bearing stators and a switch reluctance machine stator. An A-phase armature winding forms one phase; and B-phase and C-phase armature windings and bias windings are connected in series to form another two phases. A torque controlling way is identical with a traditional switch reluctance machine controlling way. The suspension force at a certain direction of each magnetic bearing is only related with a three-phase armature winding current and a suspension current at the direction; and the torque and the suspension force as well as the torque and the radial suspension force is in decoupling controlling. The suspension controlling becomes simple; and the outputs of the suspension forces are balanced and symmetric.

The invention discloses a conical magnetic suspension switch reluctance motor and a control method. The motor consists of a switch reluctance motor and two conical magnetic bearings; bias windings of the two conical magnetic bearings are connected with a winding of the switch reluctance motor in series to form a three-phase torque winding; two radial suspension windings of each conical magnetic bearing control suspension of two degrees of freedom, so that four radial degrees of freedom is formed and decoupling control can be realized; the axial suspension windings of the two conical magnetic bearings are connected together in series to form one axial suspension winding to control axial suspension; the motor can independently control torque winding current and turn-on and turn-off angles of the power circuit, and can control rotary speed and torque in real time; current of five suspension windings is controlled, suspension force in five directions can be adjusted in real time, and suspension of five degrees of freedom can be further realized; and the motor and the control method disclosed by the invention are high in integration degree, less in control variables and simple in suspension control, and the power converter of the suspension system is low in cost.

A rare-earth alloy permanent magnet material preparation device comprises a raw material treatment portion, a precipitation tank, an electrolytic furnace, a grinding mechanism, a stamping mechanism and a vacuum sintering furnace. The raw material treatment portion comprises a rare-earth metal treatment tank and a blending tank, a delivery pipe connected with the blending tank is arranged on the rear-earth metal treatment tank, the blending tank is connected with the precipitation tank through a complexing solution delivery pipe, the precipitation tank is connected with the electrolytic furnace, a feed inlet is arranged on one side of the electrolytic furnace, a casting chamber is arranged at the tail end of the electrolytic furnace and connected with a cooling chamber, the cooling chamber is connected with the grinding mechanism through a discharge pipe, and the grinding mechanism is connected with the stamping mechanism which is connected with the vacuum sintering furnace. The problem of segregation of alloy ingots is solved effectively, high temperature strength, structural stability, welding performance and corrosion resistance of the alloy ingots are improved beneficially due to addition of Sc, and the common electrolytic furnace can be used for smelting the alloy ingots by adopting mixture after Nd, Pr, Dy and Sc complexing.

The invention relates to an electrolysis method and belongs to the field of metal powder preparation. On the basis of a conventional electrolysis method, one electrode is changed into a cylinder shape to be used as an electrolyser; another electrode is arranged inside the cylindrical electrode; electrolyte continuously enters in the electrolyser in the axis direction of the cylindrical electrode; and the enter pressure of the electrolyte is 0.0006 to 5MPa. In the continuous electrolysis process, metal powder electrolyzed out on a cathode plate is flushed by the circulating electrolyte; after the electrolysis is completed, the electrolyte is stood; and finally, the electrolytic metal powder is obtained. The electrolytic metal powder obtained by the method has high efficiency and high current utilization rate and various fine electrolytic powder can be obtained.

The invention discloses a mixed magnetic bearing dual-winding switch reluctance motor and a control method. The motor consists of a switch reluctance motor and two radial magnetic bearings; a magnetic bearing stator is formed by four E-shaped structures, and the middle tooth of each E-shaped structure is wound with a suspension winding; each tooth of the switch reluctance motor is wound with a bias winding and a reluctance motor winding separately; the bias winding transversely crosses two magnetic bearing stators and a switch reluctance motor stator while the reluctance motor winding only winds the reluctance motor stator; two windings are connected in series to form a torque winding string, and a three-phase torque winding can be formed; the torque control is the same as the control way of the conventional switch reluctance motor; the suspension force in two directions of each magnetic bearing is only related to the three-phase torque winding current and two suspension currents, and decoupling control of the torque and the suspension force can be realized; the motor and the control method disclosed by the invention are high in integration degree, less in control variables and simple in suspension control, and the suspension power converter is low in cost; and design of decoupling control of the torque and the suspension force can be realized.

The invention provides a converter of a fan, and a junction temperature monitoring method and device of an IGBT module. The junction temperature monitoring method of the IGBT module comprises the steps: a forward peak current of the IGBT module, the power factor of the IGBT module, the modulation ratio of the IGBT module, the switching frequency of the IGBT module, and an estimated value of the current junction temperature of the IGBT module are obtained; the conduction loss of the IGBT module and the switching loss of the IGBT module are calculated according to the forward peak current of theIGBT module, the power factor of the IGBT module, the modulation ratio of the IGBT module, the switching frequency of the IGBT module, and the estimated value of the current junction temperature of the IGBT module; and the junction temperature of the IGBT module is calculated according to the conduction loss of the IGBT module, the switching loss of the IGBT module and the shell temperature of the IGBT module. By adopting the technical scheme, the accuracy degree of a junction temperature monitoring result can be increased.

The present invention provides a nitrogen oxide degradation membrane and a preparation method thereof. The raw material components of the degradation membrane mainly consist of cerium acetylacetonate, barium acetylacetonate, potassium fluoride, melamine and graphene, wherein cerium acetylacetonate and barium acetylacetonate are , potassium fluoride and melamine through a sol-gel method to prepare F and N co-doped BaCeO3, a precursor powder is obtained by mixing graphene with F and N co-doped BaCeO3, and the nitrogen is obtained by a casting film forming method Oxide degradation film. Thus, a non-metal modified inorganic degradation membrane is prepared through the sol-gel method, which has a more efficient and stable current utilization rate and is suitable for highly selective electrocatalytic degradation of nitrogen oxides.

The invention belongs to the technical field of silver electrolytic refining, and discloses a silver electrolytic tank. The silver electrolytic tank comprises a plurality of silver electrolytic tank bodies connected in series, wherein each of anode contact spikes and cathode contact spikes comprises a first bending section, a middle section and a second bending section; the height of the middle sections is equal to the height of conducting bars connection in series among the tanks; a plurality of equidistant clamping groove fixing seats are arranged on each of the front tank edge and the back tank edge; the clamping groove fixing seats on the front tank edge directly face middle points of every two adjacent clamping groove fixing seats on the back tank edge; two clamping sleeves are clamped on each anode contact spike; the positions of the clamping sleeves on each anode contact spike are the same and in one-one correspondence. Thanks to the silver electrolytic tank, a cathode plate and an anode plate can be set to be relatively standard, the scale division of electric current density can be relatively uniform, the use ratio and the production efficiency of the electric current are improved, the operation is simple and feasible, and industrial production is facilitated.

The invention discloses a method for electrochemical treatment of medical and chemical wastewater. The method comprises the following steps: oxidizing and degassing in a first-stage electrolytic tank so as to form a gas-liquid mixed system, precipitating, further oxidizing in a second-stage electrolytic tank, adsorbing, and the like. The method for electrochemical treatment of medical and chemical wastewater has the advantages of low cost, relatively low energy consumption and good treatment effect. The invention further relates to a device for electrochemical treatment of medical and chemical wastewater.

The present invention discloses a taper magnetic bearing switch reluctance motor and a control method thereof. The motor is formed by one switch reluctance motor and two taper magnetic bearings; a taper stator is formed by 4 E-shaped structures, the central tooth of each E-shaped structure is winded with a vertical suspension winding, is winded at, each of other two teeth are respectively winded with an axial direction suspension winding, the vertical suspension windings and the axial direction suspension windings are connected in series to form a set of the axial direction suspension winding; an armature winding crosses the two taper stators and a reluctance motor stator to form 3-phase armature winding; rotation control is the same as a traditional switch reluctance motor control mode, and bias flux is generated for suspension; and five suspension forces are associated with the 3-phase armature winding current, current of 4 vertical suspension windings and current of 2 vertical suspension windings; the two vertical suspension windings can optimize the bias flux to allow the generated bias flux to be equal when the 3-phase armature winding performs individual excitation so as to solve the problem that the vertical suspension force output is unbalance. The motor system is high in integration degree and high in current utilization rate and realizes decoupling between the torque and the suspension force.

The invention belongs to the technical field of communication, and relates to a current multiplexing voltage-controlled oscillator, in particular to a current multiplexing voltage-controlled oscillator based on grid-source transformer feedback, which is used for solving the problems of poor phase noise of a traditional voltage-controlled oscillator in a high frequency band, large occupied area, high power consumption and the like of a traditional self-mixing oscillator chip. The frequency mixer comprises a voltage-controlled oscillator fed back by a gate-source transformer, a frequency mixer body and a blocking capacitor. According to the voltage-controlled oscillator fed back by the gate-source transformer, the requirement for the power supply voltage is reduced, a high-performance working state can still be kept at a low voltage, and power consumption is reduced; and moreover, the even harmonic current of the voltage-controlled oscillator fed back by the gate-source transformer and the single balanced mixer are subjected to current multiplexing, so that the loss is reduced, the utilization rate of the current is improved, and the occupied area of a chip is remarkably reduced.

The invention discloses an electrochemical biological combined denitrification reactor, which comprises a tank body, an electrode plate, a particle electrode, an aerating apparatus and a constant current transformer. Both ends of the tank body are respectively provided with a water inlet and a water outlet. The electrode plate comprises an anode arranged on the center part of the tank body and a cathode which surrounds the anode to be arranged at the position close to the tank wall; the anode and the cathode are respectively connected with an anode and a cathode of the constant current transformer; the particle electrode is filled between the anode and the cathode; and the aerating apparatus comprises a fine bubble aerator arranged on the bottom of the tank body and an air pump connected with the fine bubble aerator. The device of the invention has compact and simple structure, small occupied area, high current utilization rate and rapid biofilm formation of microbe, can simultaneously remove various pollutants, such as organic matter, ammonia nitrogen and the like, has high denitrification efficiency and low energy consumption, is easy to regulate and control and is a multiple three-dimensional electrode biomembrane sewage treatment device integrating biology with an electric microfield into whole body.

A barrel-plated anode electrolytic plate with a new structure, including electrolytic studs, alloy hanging plates, anode electrolytic plates, air holes, fixing bolts and conductive copper strips; the electrolytic studs are threaded on the bottom side of the alloy hanging plate, and Both sides of the U-shaped inner side of the alloy hanging plate are inlaid with long strips of conductive copper strips. One end of the anode electrolytic plate is installed on the alloy hanging plate through fixing bolts, and the anode electrolytic plate is covered with a plurality of plates for electroplating solution. Ventilation holes for liquid circulation; the anode electrolytic plate is in contact with the conductive copper strip, so that the current connected to the external anode wire end is quickly transferred to the anode electrolytic plate through the conductive copper strip, and the periphery of the entire anode plate is made into a wave image The structure makes the area of ​​the anode plate larger than the area of ​​the supporting cathode plate, so that the current utilization rate in the electroplating process is improved, resulting in faster precipitation of the electroplating coating, and improving work efficiency. In order to further improve the utilization rate of the anode plate current.