153 results about "Ion emission" patented technology

The invention discloses an emission reduction system for chloride ions in waste incineration fly ash based on machine learning, relates to the technical field of solid waste resourceful treatment, is used for data-driven fly ash multi-stage dosing collaborative removal, and is divided into fly ash pretreatment and data acquisition, online ion monitoring and dosing decision, multi-stage reaction and dynamic feedback, OTA upgrading and cross-plant migration. And removing the multi-dimensional pollutants synergistically. The dosing ratio and the reaction stage are optimized in real time through a gradient boosting tree-reinforcement learning model, and the concentrations of chloride ions, heavy metals and dioxin precursors are monitored on line. According to the system, monitoring and decision-making paths of all stages are stored in a cloud knowledge graph and can be upgraded through OTA, the chloride ion removal rate is increased by more than three percent, the agent dosage is reduced by 25%, the scheme can adapt to the difference of fly ash components in different factories, economy and environmental protection are both considered, and the system has remarkable popularization value in large-scale waste incineration and hazardous waste disposal.

An ion generator includes a high voltage source, a body defining a central axis, and multiple arms extending from the body. The body has a primary conductive line electrically coupled to the high voltage source, and a first insulating covering surrounding the primary conductive line. Each arm has an emitter array and a secondary conductive line. The emitter array is disposed at a distal end of the arm relative to the body. The secondary conductive line is electrically coupled to the primary conductive line at a proximal end of the arm relative to the body and extends to the emitter array. The arms are distributed about the central axis, such that the orientations of the emitter arrays and the connection of each arm to the central body are distributed helically, spirally, or symmetrically with respect to other arms, relative to the central axis.

An array of identical linear quadrupole ion traps, each trap comprising the following: at least four main electrodes (32, 33, 34, 35) extending in a Z-direction to form a quadrupolar field at least in the midline region aligned along the Z-axis, wherein the Z-axis is either straight or curved with a radius that is substantially larger than the distance between the said main electrodes (32, 33, 34, 35); an ion ejection slot (36) in at least one of the main electrodes (32, 33, 34, 35); wherein the slot (36) is oriented in the Z direction; a pair of electrostatic end plugs (37, 38) arranged at the Z-edges of the quadrupole ion trap; wherein the pair of end plugs (37, 38) are a segment of the main electrodes (32, 33, 34, 35) or ring electrodes; an RF generator that provides RF signals with opposite phases, to form a quadrupolar RF field at least in the midline region of the main electrodes (32, 33, 34, 35); a variable DC supply for supplying DC signals to at least two rods in order to form a quadrupolar DC field with a weaker dipolar DC field at least in the midline region of main electrodes (32, 33, 34, 35); a DC, RF or AC supply connected to the aforementioned pair of end plugs (37, 38) to provide axial Z-capture; a gas supply or pumping means for providing a gas pressure in the range of 1 to 100 mTorr [0.133 to 13.332 Pascal], wherein the variable DC supply has means for ramping up the said quadrupolar potential, whereby a sequential ion ejection via the slot (36) occurs in the inverse relationship to the ion m / z, wherein the array further comprises a wide-diameter RF channel (25) with a DC gradient for collecting, transferring and spatially confining ions behind the slots (36) of the quadrupole ion traps; wherein the dimension of said RF channel (25) is defined by the trap sizes of the quadrupole ion traps and the topology of the array and the gas pressure in the quadrupole ion traps, and wherein the individual quadrupole ion traps are oriented such that an ion emission surface is formed which is either planar or at least partially cylindrical or partially spherical for more efficient collection and transfer of ions in the wide diameter RF channel (25).

A first air inlet and a first air outlet are formed in a shell, an indoor heat exchanger is arranged in the shell, the indoor heat exchanger is configured to conduct heat exchange on flowing air, a negative oxygen water ion generating device is arranged on the shell and comprises a rotating part and an emitting electrode, a second air channel is formed in the rotating part, and the emitting electrode is arranged in the rotating part. The rotating part is provided with a second air outlet communicated with the second air duct, the second air outlet is arranged beside the first air outlet, the emission electrode is arranged in the second air duct, the emission electrode is configured to release ions to the indoor space, and the emission electrode is configured to rotate along with the rotating part so as to adjust the ion conveying direction. The indoor unit can achieve independent control over air conditioner air and ion air, and the air purification effect and the human body health care effect are improved.

The invention is applicable to the technical field of photoelectricity, and provides a single-matrix white-light rare earth lead-free perovskite nanocrystal, a preparation method and application, and the single-matrix white-light rare earth lead-free perovskite nanocrystal is Eu < 3 + > ion doped Cs3TbCl6 nanocrystal. The rare earth ion Eu < 3 + > is doped into the Cs3TbCl6 nanocrystal, full-spectrum white light emission of blue light (matrix self-limiting state exciton emission), green light (Tb < 3 + > ion emission) and red light (Eu < 3 + > ion emission) is obtained, excellent thermal stability and environmental stability are achieved, and the nanocrystal material also shows excitation light dependent color adjustable emission (blue light, green light, red light and white light) and has good application prospects. The nanocrystal prepared based on a solution method can be applied to large-area flexible photoelectric devices; the fluorescent conversion layer can be used as a fluorescent conversion layer of a white light emitting diode with a high color rendering index, and can also be applied to anti-counterfeiting and information encryption.

The invention relates to the technical field of equipment control, in particular to a rare earth electrolysis feeding control method and system based on the fluorine ion quantity, and the method mainly comprises the steps that the fluorine gas concentration in the electrolysis process in the current collection period is obtained, and the current fluorine ion detection concentration is obtained through the fluorine gas concentration; and constructing a PID control model, and outputting a control signal for the feeding equipment according to the PID control model based on the fluorine ion concentration. According to the scheme, the fluorine ion or fluorine-containing gas emission amount is collected, the fluorine-containing gas or fluorine ion emission amount is relatively stable during normal electrolysis, and once material shortage and fluorine-containing gas or fluorine ion emission data are abnormal and obvious, abnormal electrolysis can be judged in time, response can be made in time (the starting point is different from that of the disclosed feeding control technology), and the feeding control accuracy is improved. And data are fed back in time and output of the charging machine is controlled. According to the method, whether material shortage exists in current electrolysis or not is judged, the feeding amount is accurately controlled through fluorine data, furnace caking caused by excessive material feeding due to the fact that materials exist in a furnace is avoided, and rare earth fluoride can be prevented from participating in electrolysis due to material shortage in the furnace.

An information handling system includes a powered hardware processor and a memory device. The information handling system includes an ion emitter / collector blower cooling system including an ion emitter / collector blower having an ion emitter and an ion collector, the ion emitter / collector blower being operatively coupled to a fan and located between the fan and an exhaust vent formed in a top edge of the chassis of the information handling system. An ionic driving circuit is operatively coupled to the ion emitter via a high voltage to ionize gases at the ion emitter / collector blower to create charged ions that generate an airflow to and through the ion collector. The information handling system also includes an air intake vent located at the fan in the chassis so that the airflow is brought into the chassis via the fan, through the fan and ion emitter / collector blower, and out of the air exhaust vent.

This invention provides an application of ion emitters based on covalent organic framework materials in thermal ionization mass spectrometry (TIEMS), specifically for improving the ionization efficiency of uranium during TIEMS measurements. Compared to conventional dual-band source modes in TIEMS, and ionization enhancement techniques such as graphite methods, benzene vapor carburizing methods, and graphene oxide methods, this invention significantly improves uranium ionization efficiency, facilitating the accurate measurement of ultra-trace and low-abundance uranium isotopes.

The invention relates to an ion surface trap (10) with (a) an electrode pair (12) that comprises a first trap electrode (14.1) and a second trap electrode (14.2) and is configured to form a trap volume for at least one ion (22) when an electrical AC voltage is applied, (b) at least two AC voltage electrodes (16) arranged to close the trap volume and / or generate an electrical field, by means of which an ion position of an ion (22) trapped in the ion surface trap can be modified relative to the ion surface trap (10), and (c) a sensor for detecting photons (20) emitted by at least one ion (22), wherein (d) the sensor is an energy-sensitive measuring superconductor sensor (18) that has a superconductor layer / separating layer / superconductor layer structure and (e) at least the first superconductor layer (24, 28) forms the first trap electrode (14).

The invention relates to a gas chromatograph and a chromatographic analysis method for analyzing sulfides in fuel hydrogen, the gas chromatograph comprises an electronic flow controller, a sample injection valve, a flow path selection valve and a plasma emission detector, two branches are arranged between the sample injection valve and the flow path selection valve, the first branch comprises a chromatographic column I, a cutting valve I and a chromatographic column II which are used for separating H2, CH4S and CS2 from sample gas, the second branch comprises a chromatographic column III, a cutting valve II and a chromatographic column IV which are used for separating fuel hydrogen, H2S and COS from the sample gas, and the plasma emission detector is used for quantitatively detecting CH4S, CS2, H2S and COS which are completely separated. Therefore, operation, use and maintenance are simple, only helium is used as carrier gas, and sensitivity is high.

The utility model provides an ion current skin repair instrument control system, which comprises a central control module electrically connected with a display module, and is characterized in that the central control module is electrically connected with an ion emitter, the ion emitter is electrically connected with a beauty control handle, the central control module comprises a controller, and the controller is electrically connected with a battery. A timing module, a charging module and an adjusting module are further installed on the central control module, and the controller is electrically connected with the timing module, the charging module and the adjusting module; the timing module is used for measuring a time interval in a beauty operation process; the charging module is used for managing and recording beauty fees; and the adjusting module is used for adjusting the working parameters of the ion emitter according to different beauty treatment requirements. According to the utility model, the beauty treatment accuracy and individuation are improved, and the beauty treatment effect is improved.

The invention discloses an air conditioner which comprises a machine shell, a heat exchanger assembly, an air duct assembly, an air outlet frame assembly and a negative ion generator. An air inlet and an air outlet are formed in the machine shell, the heat exchanger assembly and the air duct assembly are arranged in the machine shell, the air outlet frame assembly comprises an air outlet frame and an air guide assembly, the air outlet frame is arranged in the machine shell and provided with an air outlet channel communicated with the air outlet, the air guide assembly is arranged in the air outlet channel and comprises a rotatable air guide plate, and a shaft supporting seat is arranged on the air outlet frame. The shaft supporting base is located in the air outlet channel, a rotating shaft is arranged on the air guide plate, the rotating shaft penetrates through the shaft supporting base and can rotate relative to the shaft supporting base, the negative ion generator is arranged in the machine shell and comprises a negative ion emitting head, and the negative ion emitting head is installed on the shaft supporting base. According to the air conditioner, the situation that the air deflector interferes with the negative ion emission head in the movement process can be avoided, and meanwhile the sterilization and purification effects of the negative ion generator can be improved.

The application discloses a liquid gallium ion source and a gallium ion emission method. The liquid gallium ion source comprises an insulating base, a gallium storage container arranged below the insulating base, the gallium storage container having a containing cavity in which a gallium source is stored, an emission needle fixedly connected with the gallium storage container and extending downward along an axial direction of the gallium storage container from a bottom of the gallium storage container, a heating wire at least partially located in the containing cavity of the gallium storage container and in contact with the gallium source, an electrode assembly comprising first and second column electrodes fixedly and spacedly arranged in the insulating base and used for being fixedly electrically connected with two ends of the heating wire respectively, and a fixing assembly fixedly arranged in the insulating base and fixedly connected with the emission needle, the fixing assembly being not in contact with the heating wire. The application can improve the thermal efficiency of the liquid gallium ion source, reduce ion beam deviation caused by thermal deformation of the emission needle and as far as possible prolong the service life of the liquid gallium ion source.

The present invention discloses a three-dimensional laser post-ionization-secondary neutron particle mass spectrometer, which includes a vacuum chamber, a sample introduction system, a primary ion emission system, a three-dimensional laser post-ionization system, an ion optical system, a time-of-flight mass spectrometer, an observation system and a computer control system. By using a tunable laser, the present invention can achieve selective ionization of substances by adjusting the wavelength, frequency and energy value of the laser to make the energy of the laser photons resonate with the electronic energy level of the target molecule. This method has extremely high element, nuclide and molecular selectivity, can provide the sensitivity of the instrument, and can be applied to single-cell imaging analysis and testing of lipids, metabolites, small molecule drugs with molecular weights less than 1000 Da and some elements, solve the problems of small molecule metabolite testing in spatial metabolomics and ultra-high spatial resolution imaging. When not using laser post-ionization, it can be used alone as SIMS.

The bathroom equipment comprises an air duct assembly, a heating part and a sterilization part, an air blowing channel is defined by the air duct assembly, ion emission ports of the heating part and the sterilization part are arranged in the air blowing channel, outlet air of the heating part and outlet air of the air blowing channel are distributed in the first direction, and the ion emission ports of the heating part and the sterilization part are arranged in the first direction. The ion emission port is located between the air outlet and the heating part. According to the bathroom equipment, the ion emission port of the sterilization part communicates with the air blowing channel and is located between the heating part and the outlet of the air blowing channel, and when the bathroom equipment is in the working state, sterilization ions provided by the ion emission port can directly enter the external environment through the air outlet without passing through the heating part after entering the air blowing channel; the quantity of sterilizing ions entering the external environment is ensured, the sterilizing effect is improved, the sterilizing ions can be prevented from influencing the heating part through the heating part, and the service life of the bathroom equipment is prolonged.

The utility model discloses a negative ion transmitting device based on intermittent pulse, which comprises a power supply, a high voltage generator and a transmitting needle array which are electrically connected in sequence, and is characterized in that the high voltage generator comprises an intermittent pulse generating device, a boosting unit and a rectifying unit; the intermittent pulse generating device is connected to the power supply; the boosting unit is connected to the intermittent pulse generating device and the rectifying unit; and the rectification unit is connected to the emission needle array. And the working time of the intermittent pulse generating device is 0.1-1 second, and the stopping time of the intermittent pulse generating device is 0.1-1 second. According to the scheme, oxygen anions are manufactured through continuous pulse negative high voltage, accumulation of charges is eliminated through pulse intermittence, the problem that accumulation of negative charges suppresses further electron emission in turn is avoided, and the discharge efficiency is guaranteed.

This enables the creation of an ion trap chip with high photon collection efficiency. [Solution] The ion trap chip (1) comprises an electrode substrate (10) that holds ions (I) which become qubits in space, a first optical circuit board (300) having a first optical waveguide (110), and a light-receiving unit (120) that receives photons emitted from the ions and introduces the photons into the first optical waveguide, with the light-receiving unit facing the electrode substrate with the ions in between.

The utility model provides a desktop type air negative ion therapeutic apparatus, which comprises a shell, a fan, a negative ion emission head and a plasma sheet, the top surface of the outer shell is provided with an air inlet fence part and an air inlet hole, the front surface of the outer shell is provided with an air outlet fence part and an air outlet hole, an inner shell is arranged between the air inlet fence part and the air outlet fence part in the outer shell, an air duct is arranged in the inner shell, the fan is arranged in the air duct, and the anion emission head and the plasma sheet are arranged in the air duct and right face the air outlet fence part. Particularly, the plasma sheet comprises a plasma sheet main body and a side shell, the plasma sheet is horizontally arranged, the middle of one side, close to the air outlet fence part, of the side shell is provided with a mounting part and a mounting hole, a butt joint hole corresponding to the mounting hole is formed in the outer shell, and the plasma sheet is horizontally mounted in the outer shell through the mounting hole, the butt joint hole and a first bolt. The air purifier is simple in structure and easy to assemble, the assembling efficiency can be effectively improved, meanwhile, after-sales maintenance is facilitated, plasma and negative ions can be efficiently sent out at the same time, and the indoor space can be fully and efficiently purified and disinfected.

The invention discloses a degerming control method and device, an air conditioner and a storage medium. The method comprises the steps that an ion emission module is controlled to generate negative ions, and degerming operation is conducted through the negative ions; acquiring current humidity data, and judging whether the enhanced sterilization operation needs to be executed or not based on the humidity data; when it is judged that the enhanced sterilization operation needs to be executed, the operation mode of the air conditioner is obtained; and according to the operation mode of the air conditioner, the operation angle of the air guide plate is adjusted, so that the ion emission module generates more negative ions, and the more negative ions are used for enhanced sterilization operation. When ion sterilization operation is carried out, the operation angle of the air guide plate is adjusted, so that the shielding and ionization influence of the air guide plate on negative ion injection is reduced, the weakening degree of the number and the effect of ions is effectively reduced, and the ion sterilization effect is further improved.

The invention discloses a method for analyzing the content of phosphorus in wheat straws, which comprises the following steps: firstly, crushing and sieving the wheat straws, weighing a certain amount of wheat straw powder, adding into a digestion tank, adding a certain amount of ionic liquid, nitric acid, hydrofluoric acid and hydrogen peroxide, standing and pre-digesting for a certain time, and then putting into a microwave digestion instrument for programmed digestion; and performing inductively coupled plasma emission spectrum measurement after the volume of the digestion solution is fixed, and further calculating the phosphorus content in the wheat straw. According to the method, the dissolving effect of the ionic liquid on the cellulose biomass is utilized, the digestion reaction rate is increased, and the pre-digestion time in the testing process is shortened.

The invention discloses a wide-spectrum low-coherence single-mode optical fiber light source based on synchronous emission of different upper energy levels and application. The wide-spectrum low-coherence single-mode optical fiber light source comprises a 1.55-micron nanosecond pulse optical fiber pumping source, a 1.5 / 2-micron optical fiber wavelength division multiplexer, a single-mode thulium-doped silica optical fiber, a cooling device and a single-mode output tail fiber. At the low temperature of liquid nitrogen, the quantum efficiency of emission of thulium ions 3H4-3H5 in the high-phonon-energy quartz glass is improved to nearly 100% from less than 10% at room temperature; under the pumping condition of a gain switch with a high pumping rate, synchronous emission with a nanosecond-level time difference is formed between 3H4-3H5 emission (2.3-micron wave band) and 3F4-3H6 emission (1.9-micron wave band) in the high-concentration single-mode thulium-doped silica fiber, and the two different upper energy level emission forms single transverse mode flat wide-spectrum low-coherence output with the bandwidth larger than 700 nanometers on the spectrum. The all-fiber light source is compact in structure and convenient to operate, and realizes gapless coverage in a wave band from 1.7 microns to 2.5 microns; the method can be applied to speckle-free imaging illumination, optical coherence tomography and the like.

An information handling system includes a processor, a memory device, and a PMU to provide power to the processor and memory device. The information handling system may also include an enclosed ion emitter cooling system including an ion emitter hub and an ion collector ring surrounding the ion emitter hub, the processor executing code instructions of an ion emitter control system to activate an ionic driving circuit, and an ionic driving circuit operatively coupled to the ion emitter hub and applying a first voltage to produce and repel ionized gases at the ion emitter hub and the ion collector ring and applying a second voltage to attract and deionize those ionized gases wherein movement of the ionized gases from the ion emitter hub to the ion collector ring causes an airflow within the enclosed ion emitter cooling system.

Hairstyling devices include one or more heat transmissive elements having a coating disposed thereon, the coating having ceramic and lava rock incorporated therein. The use of lava rock-containing coatings as described herein results in hairstyling devices with heat transmissive elements exhibiting enhanced heat retention, faster heat recovery, and increased ion emission. Furthermore, lava rock-containing coatings have been found more durable than equivalent heat transmissive element coatings that do not have lava rock incorporated therein.

The present invention relates to the technical field of disinfection advertising screens, and specifically to a small space air purification and disinfection advertising screen, comprising a shell, the shell comprising a front shell, a rear shell, a front partition, a left wing plate and a right wing plate, the shell being made by combining the front shell, the rear shell, the front partition, the left wing plate and the right wing plate, and the interior of the shell being provided with a pneumatic system, a purification and disinfection system, an ecological negative ion emitter, a magnet fixing device, an electric control system and a host display system, and four independent spaces being provided in the shell, namely, space I, space II, space III and space IV. The purification and disinfection system module used in the present invention is washable, has a long service life, does not require regular replacement of the filter element, and greatly saves the cost of use; the product of the present invention can release ecological-grade negative ions through the ecological negative ion emitter, and the ecological-grade negative ions have excellent purification and dust removal effects, reducing the harm of secondhand smoke, improving the prevention of respiratory diseases, removing free radicals in the body, and reducing blood viscosity.

The invention discloses a tunable mid-infrared fiber laser with high power flatness. A pumping source enters an erbium-doped fiber through a pumping / signal coupler, and a low-reflectivity cavity mirror, the erbium-doped fiber, a laser collimator and a tuned filter form a laser resonant cavity; the low-reflectivity cavity mirror and the pumping / signal coupler are coupled to output intermediate infrared laser, the tuning filter device is used for realizing a wavelength tuning function, and the insertion loss difference value of the device under different working wavelengths is less than 0.5 dB; the wavelength of the pumping source is in a 1.6-1.7 micron wave band, erbium ions are pumped from a ground state energy level to a laser upper energy level, and laser lower energy level particles are consumed; the stable insertion loss in the process of adjusting the working wavelength by using a tuning filter device is combined with the characteristics that the emission cross section and the absorption cross section of erbium ions are gradually reduced along with the increase of the wavelength and the reduction rate of the absorption cross section is greater than that of the emission cross section, so that the gain difference caused by the emission cross section difference under different laser wavelengths of the fiber laser is reduced; and the power flatness of the fiber laser under different tuning wavelengths is improved.

The invention discloses a multifunctional physical experiment device which comprises an experiment box and a box cover which can be connected in an opening and closing mode, and an ion generation piece and an ion detection piece located on an ion emission path of the ion generation piece are arranged in the experiment box; an air inlet, an air outlet and a vacuum degree monitoring piece are arranged on the experiment box; when the box cover and the air inlet are closed, air in the experiment box is pumped out through the air outlet so as to form a vacuum experiment chamber, and ions emitted by the ion generation part can move in the experiment chamber and are captured by the ion detection part; according to the invention, a closed vacuum experiment environment can be conveniently constructed, so that an integrated small experiment platform is formed; wherein an ion generating piece and an ion detecting piece are integrated in the experiment box in advance, and development of various types of ion related experiments can be directly supported; multiple sets of experiment equipment do not need to be additionally and independently configured, so that the experiment cost is greatly reduced, and the operation convenience is remarkably improved.

The invention discloses an air conditioner which comprises a shell, an internal air duct, an indoor heat exchanger, a water pan, a condensate water inlet, an ion emission device, a first through hole formed in the side wall, close to the ion emission device, of the shell, a water valve assembly, a water pump assembly, a protection cabin and a second through hole formed in the protection cabin and matched with the first through hole. The water valve assembly comprises a first inlet and a third outlet, the first inlet is communicated with the condensate water inlet, the third outlet is communicated with the first through hole, the water pump assembly is arranged at the third outlet, and when a first signal is received, the controller controls the protection cabin to move from the first position to the second position, the first inlet is communicated with the third outlet, and the water pump assembly is started; condensate water enters the protection cabin through the first inlet, the third outlet, the first through hole and the second through hole, so that the condensate water is used for flushing the ion emission device. The condensate water in the water pan is pumped to the position where the ion emission device is located at regular intervals, and the ion emission device is flushed.

The utility model discloses an air conditioner air outlet structure and an air conditioner, and relates to the technical field of air conditioners. The negative ion generation assembly comprises a negative ion generator and a plurality of negative ion emission heads, each negative ion emission head is electrically connected with the negative ion generator, the multiple negative ion emission heads are arranged on the fan blades at intervals, and the emission ends of the negative ion emission heads are used for being arranged on the sides, away from the interior of the air conditioner, of the fan blades. According to the air conditioner air outlet structure, the air flow flowing through the fan blades can effectively carry the negative ions released by the negative ion emitting head, the negative ions are diffused to all areas of the indoor space along with the air flow, the negative ions can be distributed in the whole indoor space, and therefore the air purification effect is improved.

An ion generator (100) includes a high voltage source (102), a body (104) defining a central axis (A), and multiple arms (106) extending from the body. The body has a primary conductive line (108) electrically coupled to the high voltage source, and a first insulating covering (110) surrounding the primary conductive line. Each arm has an emitter array (116) and a secondary conductive line (112). The emitter array is disposed at a distal end (120) of the arm relative to the body. The secondary conductive line is electrically coupled to the primary conductive line at a proximal end of the arm relative to the body and extends to the emitter array. The arms are distributed about the central axis, such that the orientations of the emitter arrays and the connection of each arm to the central body are distributed helically, spirally, or symmetrically with respect to other arms, relative to the central axis.

The utility model provides a negative ion emission head cleaning mechanism of an air negative ion therapeutic apparatus, which comprises a negative ion emission head and a cleaning head arranged nearby the negative ion emission head, a release beam is arranged at the tail end of the negative ion emission head, and the negative ion emission head cleaning mechanism particularly comprises a mounting rod and a driving assembly; the side face of the installation rod is provided with an installation column and a columnar through hole, and the negative ion emission head is installed in the columnar through hole. The driving assembly comprises a stepping motor, a driving gear and a driven gear, an output shaft of the stepping motor is parallel to the mounting rod, the driving gear is coaxially arranged on the output shaft of the stepping motor, the driven gear is coaxially arranged on the mounting rod, the driving gear and the driven gear are in external meshing connection, and the output shaft of the stepping motor can drive the driven gear to rotate through the driving gear; and the mounting rod and the negative ion emitting head are driven to rotate synchronously, so that the released beams of the negative ion emitting head sweep over the cleaning head. The air negative ion therapeutic apparatus is simple in structure, easy to install, suitable for releasing negative ions from the front side and achieving the self-cleaning function, and capable of being applied to a desktop type air negative ion therapeutic apparatus.