349 results about "Inhalable particles" patented technology

The aim of the invention is to improve the moisture resistance of dry powder formulations for inhalation which contain a pharmaceutically ineffective carrier of not-inhalable particle size and a finely divided pharmaceutically active compound of inhalable particle size and to also improve the storage stability of said formulations. To this end, magnesium stearate is used in said formulations. One of the features of the inventive dry powder is that a high fine particle dosage or fine particle fraction can be maintained also under relatively extreme temperature and humidity conditions.

Effervescent powders comprising inhalable particles are disclosed, as are methods for preparing these powders. The inhalable carrier particles comprise an inorganic or organic carbonate, and an acid, and exhibit effervescence when exposed to water or humid air. The particles have a mass median aerodynamic diameter suitable for nasal, bronchial, or pulmonary administration. The inhalable particles may be used as carriers for active agents. The inhalable particles may also be used to enhance permeability of mucosal and surface barriers on an inner surface of the nose, mouth, airway, and / or lungs of a patient, as well as to loosen, thin, cleanse, and remove mucus and extrinsic surface materials from an inner surface of the nose, mouth, airway, and / or lungs of a patient in need thereof.

Preferred nose cones 100 associatable with a tail spout 120 of a sand handler and a vacuum hose 130 of a vacuum system are described herein. A method for containing respirable and / or inhalable particles 140 created in an industrial process is also disclosed herein.

Respirable particles carrying active principles or diagnostics in nanoparticle form are created by mixing the nanoparticles with liquid carrier, then forming the resultant mixture into respirable particles. Spray-drying, freeze spray drying and drying followed by comminution may be used to create the respirable particles, which may be delivered to the lung via a dry powder inhaler. In one example, lactose was used as the excipient and spray-dried with two different types of nanoparticle: gelatin and poly butylcyanoacrylate nanoparticles. The incorporation of nanoparticles did not affect the respirable fraction of the carrier powders.

Preferred nose cones 100 associatable with a tail spout 120 of a sand handler and a vacuum hose 130 of a vacuum system are described herein. A method for containing respirable and / or inhalable particles 140 created in an industrial process is also disclosed herein.

The invention discloses a method for estimating inhalable particles based on an HJ-1 satellite. The method comprises the following steps of: 1, inverting the optical thickness of an aerosol in a target area by original data which are acquired by charge coupled device (CCD) cameras of an HJ-1A satellite and an HJ-1B satellite, and interpolating and smoothing the optical thickness of the aerosol inthe target area; 2, acquiring the height of an atmospheric boundary layer through a laser radar, and vertically correcting the interpolated and smoothed optical thickness of the aerosol according to the height of the atmospheric boundary layer to obtain an extinction coefficient of a near-surface aerosol; 3, acquiring near-surface relative humidity by observation of a weather instrument, and performing humidity correction on the extinction coefficient of the near-surface aerosol to obtain the extinction coefficient of a dried near-surface aerosol, wherein the extinction coefficient is not influenced by moisture absorption growth; and 4, converting the extinction coefficient of the dried near-surface aerosol into the concentration of near-surface inhalable particles. The method has the advantage that: by continuously and dynamically acquiring atmospheric information through satellite remote sensing, the space distribution of the inhalable particles in a large area can be reflected comprehensively and dynamically.

This invention relates to a method for in-situ detection of aerosol particle concentration and detector thereof. <0}Wherein, putting the pipe-shaped probe with a positive / negative high voltage electrode metal wire for forming at least one corona field into the airflow with aerosol particle; forcing the gas flow the firmer field to let partial aerosol particles bring negative charge; in the corona field, depositing the charged particles on the positive electrode; detecting the current or voltage variation of the circuit connected with the positive electrode; comparing the detection data with standard or conventional result for scaling and the corresponding relation curve or empirical formula; finally, getting the particle concentration. This invention has wide application.

Provided is an in-car air quality monitoring and purification regulating system. A storage battery and three devices respectively powered by the storage battery are installed in a car. The three devices are a ventilating device, an adsorption and filtering device and a heating device. A temperature and humidity sensor, a formaldehyde sensor, a carbon monoxide sensor, a total volatile organic compound sensor and an inhalable particle sensor which are installed in the car are respectively connected with a system control module, and the system control module comprises a sensor signal processing circuit and a power supply on-off control circuit for the three devices. The system can monitor indexes such as in-car air quality and temperature and humidity in real time and start the three devices according to the index overproof conditions; the indexes can also be uploaded through the wireless network to a mobile by the system control module to be displayed in real time; the mobile phone can send instructions to the system control module according to users' requirements to start or shut down the three devices in real time, and purification adjustment of in-car air is achieved.

The invention provides a method for preparing an environment-friendly floor board underlayer. The underlayer is prepared by firmly covering a composite catalyst material on a flaky adsorbing filter material. Only by evenly paving the environment-friendly floor board underlayer under a floor board so that the back side of the floor board is contacted with the environment-friendly floor board underlayer closely, the environment-friendly floor board underlayer can clear off harmful gases such as formaldehyde, benzene and the like and off flavor generated and released by the floor board and auxiliary materials, prevent damp and humidify, reject milden and rot, kill and inhibit bacteria, expel insects and prevent moths, increase vitamin-anions and far infrared rays in the air, and reduce the harm of dust mites and respirable particles. The environment-friendly floor board underlayer is advantageous to keep body healthy, prevent floor board form polluting, and prolong the service life of the floor board. The use is simple and convenient without professional constructions, the purification lasts without rebound, and the effect is fast and thorough; and experimental detections show that the degradation rate of the formaldehyde within 24 hours reaches 99 percent, the degradation rate of the benzene within 24 hours reaches 92 percent, the antibacterial rate is 99 percent, the mold prevention is at a zero level, the insect expelling rate is 92.8 percent, and the acute property is is actually at a nontoxic level by oral toxicity test.

The invention relates to a bag type dust removing device capable of desorbing inhalable particles in air, in particular to an acoustic agglomeration composite bag type dust removing device which belongs to the technical field of manufacture of pollution control devices. The dust removing device comprises a dusty air buffer chamber, an acoustic agglomeration chamber, a bag type dust remover, an ashbucket, an acoustic generator, a D-power amplifier and a signal generator. A dusty smoke inlet is arranged at the bottom of the dusty air buffer chamber, and the dusty air buffer chamber is connectedwith one end of the horizontally arranged acoustic agglomeration chamber. The acoustic generator is arranged on the inner wall of the acoustic agglomeration chamber and connected with the output endof the D-power amplifier, and the input end of the D-power amplifier is connected with the signal generator. Another end of the acoustic agglomeration chamber is connected with the bag type dust remover. The ash bucket is arranged at the bottom of the bag type dust remover. The invention can desorb PM2.5 in dusty air in high efficiency.

The invention relates to a device used for removing absorbable granules PM2.5 based on acoustic wave and with the addition of associative action of seed granules and a method thereof, in particular to a set of devices used for removing the absorbable granules (hereinafter called PM2.5 for short) with grain diameter less than 2.5 micrometers in dusty gas and a method thereof. The device comprises a sound source, an acoustic agglomeration chamber, a feedway for the seed granules, subsequent normal dedusting equipment, etc. When flue gas discharged by various combustion sources or other dusty gas flows through the acoustic agglomeration chamber, fine granules in airflow arise entrainment of different degrees under the action of the acoustic wave, while the added seed granules nearly do not arise entrainment due to relatively large inertia thereof; meanwhile, the fine granules and the seed granules are different in gravity settling and acoustic drift. The three reasons lead to relative movement between the fine granules and the seed granules, thus generating quite high collision rate between the absorbable granules PM2.5 and the seed granules. After the absorbable granules PM2.5 collide with the seed granules, agglomeration happens between the absorbable granules PM2.5 collide with the seed granules; coacervate generated by the agglomeration is further removed by the subsequent normal dedusting equipment.

The invention discloses a device for removing fine particles by combining sound wave agglomeration and conventional dedusting. The device mainly comprises a smoke pipeline, sound sources and a conventional deduster, wherein the acoustic agglomeration and the conventional dedusting technology are combined to agglomerate and remove fine inhalable particles in smoke; and the device has a specific structure that line sound sources and area sound sources are arranged around or adjacent to two faces of the smoke pipeline, the length of a sound source covering face along a smoke flowing direction is bound to meet the condition that the smoke moves for 2-5s in a sound field, and the tail of the smoke pipeline is provided with the conventional deduster. The smoke flows through the smoke pipeline provided with the sound sources, the fine inhalable particles in the smoke are in the sound field, various mechanisms of sound agglomeration promote small particles to be adsorbed to large particles or promote the small particles to be agglomerated into large particles, and then, the fine inhalable particles can be effectively removed through the conventional deduster.

The invention provides an air filtration and sterilization device for eliminating harmful gas. The air filtration and sterilization device for eliminating harmful gas is applied to indoor air purification and comprises a box body, a filter, a plate-type low-temperature plasma, an ozone filter and a fan device, wherein the filter, the plate-type low-temperature plasma, the ozone filter and the fan device are sequentially arranged in the box body side by side. The fan device is used for sucking air into the box body and blowing out the air after the air is treated by the filter, the plate-type low-temperature plasma and the ozone filter. The filter, the plate-type low-temperature plasma, the ozone filter and the fan device are sequentially arranged in the box body side by side, and the fan device sucks the air into the box body and blows out the air after the air is treated, so that the air filtration and sterilization device treats inhalable particles and harmful gas in the air entering the box body and performs stepless regulation to air volume for air cleaning by controlling the rotating speed of a motor. An application range of air filtration and sterilization is greatly widened, energy consumption of the device is reduced, the harmful gas in the air can be eliminated, and the harmful gas concentration in the air is controlled within the scope of national standard.

The aim of the invention is to improve the moisture resistance of dry powder formulations for inhalation which contain a pharmaceutically ineffective carrier of not-inhalable particle size and a finely divided pharmaceutically active compound of inhalable particle size and to also improve the storage stability of said formulations. To this end, magnesium stearate is used in said formulations. On of the features of the inventive dry powder is that a high fine particle dosage or fine particle fraction can be maintained also under relatively extreme temperature and humidity conditions.

The invention relates to respirable dry particles that contain one or more divalent metal cations, such as calcium, in an amount of less than 3% by weight, and to dry powders that contain the respirable particles. The dry particles can further contain an active agent, or can be used as carrier particles to deliver an active agent.

The invention discloses a smokeless and constant-temperature control method and device for moxibustion. A smokeless and constant-temperature control scheme is adopted, a moxibustion device matched with the scheme is designed, because the moxibustion device can automatically make a moxa stick go up and down, automatic temperature control can be achieved, it is ensured that the temperature of moxibustion is constant, and the skin is prevented from being burnt; multi-freedom-degree all-directional rotation is achieved through a universal shaft, moxibustion treatment can be carried out on different parts of the body, and operation is convenient; due to a grid-shaped ash receiving disk, the problem that ash falls off in the combustion process of the moxa stick can be solved, and the skin is prevented from being scalded in the moxibustion process; due to a filter device, the concentration of inhalable particles in air can be reduced, and the purpose of purifying the air is achieved.

Respirable particles with diameters on the order of 0.05 to 10 microns entrained in an air stream. are concentrated in an aerodynamic lens (FIG. 2) for separation from the air steam. The entire structure is made by microfabrication techniques, such as silicon micro-machining which enables arrays of precisely aligned slit lenses to be made on a silicon chip. At a Reynolds number of 800, a slit 25 microns wide by 1 mm tall will pass a flow of only 0.28 liters per minute, but arrays of lenses (FIG. 4), stacked in parallel banks, multiplies the available flow rate. Placing a skimmer (27) at the exit of each silicon micro-machined lens in the assembly and connecting the skimmer channels in chimneys (55), allows the bulk of the gas flow to be stripped off while allowing the concentrated particle stream to pass into a region of much lower flow rate, thereby producing a highly concentrated aerosol in the low velocity stream.

The invention discloses an indoor environment monitoring system. In the system, the outputs of a CO sensor circuit, a SO2 sensor circuit, a CH2O sensor circuit, a CO2 sensor circuit, a noise sensor circuit and an electromagnetic radiation sensor circuit are connected with the input of a sensor multipath gating circuit, the output of the sensor multipath gating circuit is connected with the input of an analog-to-digital conversion circuit, the outputs of the analog-to-digital conversion circuit, a temperature-humidity sensor circuit, an inhalable particulate sensor circuit, a reserved interface circuit and a key circuit are respectively connected with the input of a singlechip, the output of the singlechip is respectively connected with an acousto-optic alarm circuit, a liquid crystal display circuit and a reserved expansion I / O port circuit, and a power supply circuit supplies power for the whole system. The system can monitor eight environment pollution-related parameters, intelligently analyze the influences of each parameter on a human body, display a current comfortableness value, and automatically execute relevant operations according to data results, and has convenient operation, high automation degree, high correctness and good safety.

The invention discloses an indoor gas purification device based on discharge plasma, comprising a shell provided with a gas inlet and a gas outlet, wherein a fan, a dielectric barrier corona discharge processing region and a dust collecting region are arranged in the shell between the gas inlet and the gas outlet. According to the indoor gas purification device, more uniform low-temperature plasma is generated by two discharge units which are arranged oppositely, oxidation processing is carried out on harmful gas in the dielectric barrier corona discharge processing region, heteropolarity charge electrocoagulation and processing are carried out on inhalable particles, the inhalable particles are collected in the dust collecting region, and the device has the advantages that no chemical agent and no physical additive are used, no special gas atmosphere exists, the energy consumption is low, indoor gas purification is realized under barometric pressure, and the effect is good.

The invention discloses an air circulation purification air conditioner, which comprises a program control display screen (1), a solenoid valve air door (2), a fan pipeline upper chamber (3), a suction-in fan (4), an exhaust fan (5), a fan pipeline lower chamber (6), a spray water chamber (7), a multi-hole sponge (8), an air-water separation mesh (9), backflow water (10), an air water curtain dedusting filter screen (11), a solenoid valve (12), a lamp base (13), silica gel (14), an ultraviolet lamp light tube (15) and the like. The air circulation purification air conditioner sucks outdoor air indoors through a 1-2 inch pipeline, then sucks in air through purified water circular cleaning and filtering, the air is sent into all rooms for use through a fan pipeline after the air is disinfected in an ultraviolet disinfection chamber, and therefore the quality of indoor air can reach the quality of field air in fine days after thunderstorm. In addition, PM 2.5-10 flying dust inhalable particles and the like are removed when the air is filtered and cleaned, so that the indoor air can be as clean as air in after-rain woodlands even when doors and windows are closed for a long time.

The invention relates to an integrated control method for simultaneously removing respirable particle substances and heavy metal in fire coal. The integrated control method is characterized in that fly ash residual carbon having good adsorption effect on the heavy metal is sprayed in the front end of a bag type filter to remove heavy metal mercury in fire coal flue gas; meanwhile, ferrum series oxides with catalysis are sprayed in lime and the fly ash to remove sulfur oxide, and the like in the fire coal flue gas in a fluid bed reactor; filter materials of the bag filter are made of carbon-doped fibers and can effectively remove the heavy metal mercury in the fire coal flue gas for the second time, thereby achieving the aim for simultaneously removing the respirable particle substances and the heavy metal in the fire coal flue gas. The method can remove PM2.5 level, particularly finer micrometer and nanometer respirable particle substances with the removal rate up to more than 98 percent, and can remarkably control the emission of the heavy metal mercury in the fire coal flue gas; the integrated control process is simple in operation, safe in running, remarkable in environment benefit, small in occupied area of the device and low in process cost.

The invention discloses a method for estimating the concentration of near-ground inhalable particles (PM10) based on observation data of atmospheric visibility and relative humidity. The method comprises the steps of (S1) calculating a near-ground aerosol scatting coefficient based on horizontal visibility observation data, (S2) calculating aerosol average quality scattering efficiency based on a near-ground aerosol extinction coefficient and PM10 quality concentration, (S3) establishing a correlation model of the aerosol average quality scattering efficiency and the relative humidity according to seasons, background environments and meteorological information, and (S4) estimating the PM10 concentration based on the observation data of the atmospheric visibility and the relative humidity by using the correlation model in the step (S3). According to the method, the near-ground particle pollution level is estimated based on the meteorological data such as the atmospheric visibility and the relative humidity, the deficiency of a particle ground monitoring station can be effectively compensated, and the spatial range of the particle concentration monitoring can be expanded.

The invention discloses a site road raised dust processing system. The site road raised dust processing system is characterized by comprising a raised dust suction device, a large particle filter device used for filtering out large particles in raised dust, a water washing device humidifying raised dust and air and dissolving soluble substances in raised dust, and a static coagulation dust removal device used for removing inhalable particles in raised dust. A raised dust concentration detection unit is arranged in the raised dust suction device and detects the road raised dust concentration. When the road raised dust concentration reaches the set upper limit value, the site road raised dust processing system is started to work, and when the road raised dust concentration is decreased to the set lower limit value, the site road raised dust processing system is turned off. For application occasions of site raised dust, inhalable particles in raised dust and solid large particles in raised dust are effectively removed, and the site raised dust pollution is reduced.

The invention relates to a road dust suppressant for controlling the inhalable particles in near-surface air and a preparation method thereof. The road dust suppressant comprises the following components in parts by weight: 100-150 parts of calcium magnesium acetate, 0.04-0.2 part of dust suppression aid and 300-1,800 parts of water, wherein the calcium magnesium acetate comprises 0.1-0.9 part of calcium acetate and 0.1-0.9 part of magnesium acetate; and the dust suppression aid is one of surfactants including sodium lauryl sulfate, alkylphenol polyoxyethylene ether TX-10, wetting agent X-405, sodium dodecyl benzene sulfonate, Tween and Span or a mixture of more than one of the surfactants. The road dust suppressant provided by the invention can effectively reduce the inhalable particles and harmful substances such as nitrogen oxides and sulfides on the road, and has the characteristics of environmental friendliness, low corrosion to vehicles and pavement, long-lasting effect and the like.

The invention discloses a composite Cottrell precipitator for synergistically removing various infectants in smoke gases, which has four high-voltage electricity discharging fields, wherein, a first electric field is a negative high-voltage direct-current electricity discharging field that is connected with a smoke gas inletting pipeline and used as advances collected dust collection level; a second electric field and a third electric field are both positive high-voltage pulse electricity discharging fields, and connected with the first direct-current electric field and used at the level of dust grain charging and the synergistic removing of various infectants in the smoke gases; a fourth electric field is a negative high-voltage direct-current electricity discharging field that is positioned behind the third positive high-voltage pulse electricity discharging field and used at the coagulation dust collection level. The composite Cottrell precipitator for synergistically removing various infectants in the smoke gases can improve the removing capacity of inhalable particulates especially nanophase particulates, effectively oxidize and remove the content of sulfur dioxide, nitrogen oxide and zerovalent mercury in the smoke gases, reduce the toxicity of the smoke gases, and implement the integrated and synergistic removing of various infectants in the smoke gases by combining with a solution absorption method.

Disclosed is a nasal cavity cleaning liquid for preventing dust-in, which is prepared from the following raw materials (by weight percent): sea salt 3.0-5.0%, glycerol 0.5-1.5%, albumen candy 0.05-0.2%, water-soluble pearl powder 0.05-0.2%, lemon acid 0.05-0.2%, lemon peppermint perfume compound 0.01-0.05%, menthol 0.005-0.01%, EDTA-2Na 0.01-0.04% and balancing water.

The invention discloses a control method for an air conditioning system capable of achieving automatic purification. The control method comprises the steps that the air conditioning system detects inhalable particles in the indoor environment in real time, obtains the real-time concentration of the inhalable particles, judges whether the real-time concentration of the inhalable particles is larger than a first preset concentration threshold value and eliminates the inhalable particles in the indoor environment if the real-time concentration of the inhalable particles is larger than the first preset concentration threshold value. According to the control method for the air conditioning system capable of achieving automatic purification, the inhalable particles in the indoor environment can be automatically monitored and eliminated, and therefore the concentration of the inhalable particles in the indoor environment can be within a range beneficial for the health and comfort, the intelligence level and the use value of the air conditioning system are improved, and the user experience is improved. The invention further discloses the air conditioning system adopting the control method.

A combined electrostatic dust separator for removing the nanoparticles is composed of the first high-voltage DC discharging electric field connected to harmful fume pipeline for pre-collecting dust, the second high-voltage pulse discharging electric field for electrically charging the dust particles, and the third and fourth high-voltage DC discharging electric fields for coagulating and collecting dust.

A robotic sensor measures air quality characteristics as experienced by a toddler, such as a child of six to twelve months in age. The robot includes an air quality sensor, a terrain drive train, a sensor drive train and a control circuit that controls the terrain drive train and the sensor drive train. The control circuit directs the terrain drive train to traverse an area at a speed and a start and stop rate consistent with that of a child and directs the sensor drive train to control the monitoring height at which the air quality sensor measures the air quality characteristic in a manner consistent with that of the child.

The invention relates to an air conditioner purification sterilizer, which includes a main unit and a cabinet unit of a spilt cabinet air conditioner. In the cabinet unit are mounted a condenser and a fan. In the upper part of the cabinet unit casing there is an air outlet window and in the lower part there is an air inlet window. In the front of the cabinet unit there is a control panel. The fan is corresponding with the air inlet window. Between the above of the fan and the air outlet window are disposed an electrostatic dust collector and an absorption filter one by one.