39 results about "Particulate (substance)" patented technology

Moisture barrier resins comprising a film-forming, cross-linkable, partially hydrolyzed polymer and a cross-linking agent provide improved impermeability to moisture and extended release capabilities for various particles, substances and other core materials that are encapsulated with compositions which contain these resins.

The invention discloses a multi-component alloy water purification mesh material and a water purification filter element made from the same, relates to the field of water purification, in particular relates to a water purification material and a water purification filter element made from the same, and aims to solve the problem that a conventional water purification material does not have a main antibacterial effect and functions of filtering large particulate substances and removing free residual chorine and heavy metals at the same time. The multi-component alloy water purification mesh material is woven of alloy wires or alloy belts, wherein the alloy wires or the alloy belts consist of trace elements, impurities and the balance of Cu or consist of the trace elements, the impurities, Zn and the balance of Cu. The water purification filter element made from the multi-component alloy water purification mesh material is independently made from the multi-component alloy water purification mesh material, or is compositely made from one or more multi-component alloy water purification mesh material layers and one or more other water purification material layers. The invention can be used for preparing the water purification material and producing the water purification filter element from the water purification material.

The invention provides a particulate barrier material and application of the same to haze prevention, belonging to the field of respiration protection articles. The particulate barrier material comprises a cationic polymer which accounts for 0.1 to 10% of the mass of the particulate barrier material. The particulate barrier material has charges and can form a micro-electric protective layer; particulate matters repel macromolecular substances with the same kind of charges as the particulate matters, thereby preventing the macromolecular substances from passing through; the particulate mattersattract macromolecular substances with heterogeneous charges, so large particles are formed through coacervation, and the large particles settle down and are no longer absorbed by the body. The particulate barrier material can enhance the filtering effect of anti-haze materials and anti-haze devices and improve anti-haze effect. In addition, the particulate barrier material can be directly sprayedon the surface of a part in need of haze prevention, such as the face or various anti-haze devices, to produce effective anti-haze effect.

An inhaler comprising a tubular body (1) defining a tubular air flow passage with a bendable section, preferably a U-shaped section comprising peripherally extending corrugations and means for supplying a dose of at least one active inhalable, particulate substance into the flow passage and a cap (2). According to the invention the dose of the at least one active, inhalable particulate substance is placed in the cap (2) to be released from said cap substantially at the beginning of the corrugations in the intake direction.

The invention relates to a low-temperature desulfurization and denitration device for flue gas, the low-temperature desulfurization and denitration device comprises an ash removal device, an oxygen regulation device, an absorption tower and an absorption liquid circulation tank, wherein the ash removal device, the oxygen regulation device and the absorption tower are sequentially communicated through a flue gas pipeline, the front end of the ash removal device is connected with a flue gas inlet, a flow regulating valve is arranged between the flue gas inlet and the ash removal device, a firsttemperature control device is arranged between the ash removal device and the oxygen regulation device, a second temperature control device is arranged between the oxygen regulation device and the absorption tower, an induced draft fan is arranged between the second temperature control device and the absorption tower, a first valve is arranged between the first temperature control device and the ash removal device, and the absorption liquid circulation tank is connected with the absorption tower; granular substances in the flue gas can be sufficiently separated, the moving path of the flue gasin the absorption tower is prolonged, the reaction time is prolonged, and the flue gas is subjected to sufficient desulfurization and denitration reaction, so that the flue gas reaches the emission standard.

The invention relates to an integrated rapid treatment system for organic sludge. The system comprises an impurity removal unit, a sludge oxidation unit, a rapid sludge concentration unit and a rapidsludge dehydration unit, wherein the impurity removal unit is used for removing garbage impurities in slurry; the sludge oxidation unit is used for reducing the organic matter content of the sludge and destroying extracellular polymers in the sludge through strong oxidation; the rapid sludge concentration unit is used for accelerating the sedimentation of particulate matters through a flocculatingagent, then realizing rapid separation of sludge and water and further reducing the moisture content of the sludge; the rapid sludge dehydration unit is used for generating a gel substance on the surface of sludge particles through an efficient sludge modifier to form an irreversible condensation hardened shell, so that the sludge particles are of certain water stability and strength stability, the moisture content of the sludge is reduced, and the moisture content of a sludge cake is not more than 40% through mechanical means. The system is simple, convenient to operate and maintain, small in occupied area and short in treatment period, and harmlessness, reduction and stabilization treatment of organic sludge can be quickly realized.

The invention relates to an evaporation crucible and an evaporation device. The evaporation crucible comprises a crucible body and a blocking assembly, wherein the blocking assembly is detachably mounted in an accommodating cavity; the blocking assembly comprises at least one first blocking sheet and at least one second blocking sheet which are arranged in a spaced mode in an axial direction of the accommodating cavity; the first blocking sheet is provided with a first circulating part; positive projection, on the first blocking sheet, of the second blocking sheet in the axial direction of theaccommodating cavity covers the first circulating part; and a gap is formed between the second blocking sheet and the inner wall of the accommodating cavity. According to the evaporation crucible andthe evaporation device disclosed by the invention, the first circulating part and the gap are in communication to define a circulating path for an evaporation material; moreover, the first blocking sheet and the second blocking sheet are utilized to block most of particle substances from splashing and to block oxide particles from discharging; and meanwhile, the particle substances are splashed and the oxide particles are collected onto the first blocking sheet, so that the product yield is increased, and clearing is convenient.

The invention relates to a waste gas treatment device, and belongs to the technical field of environmental protection equipment. The device comprises a turbulent mixing dust removal device, a drying device, a fore-lying filter, a zeolite rotating wheel concentration device, a fan I, a chimney, a heat exchanger, a rotary RTO incineration device and a fan II. According to the invention, the turbulent mixing dust removal device arranged in front of the fore-lying filter pre-treats waste gas to remove the particulate matters in the waste gas, and the residual dust in the waste gas is filtered through the fore-lying filter, so that the situation that the filtering material of the fore-lying filter is frequently replaced can be avoided, and the blockage of the zeolite rotating wheel concentration device due to the poor filtering effect of the fore-lying filter can also be avoided; the gas treated in the zeolite rotating wheel adsorption area is used as the cooling gas of the cooling area, sothat the situation that the adsorption capacity of the zeolite rotating wheel is reduced when the zeolite rotating wheel reaches the adsorption area to cause the over-standard of the harmful substances in the waste gas after the zeolite rotating wheel reaches the cooling area to adsorb a certain organic harmful substances due to the fact that original waste gas is used as the cooling gas is avoided.

A short-stroke solenoid-actuated valve suitable for pulsewidth modulated operation including a plurality of components formed of powdered metal, preferably a 400-series stainless steel compressed to about 6.0 g/cm.sup.3, to be sound absorptive and ferromagnetic; resilient radial seal means disposed in an annular groove in an outer surface of the valve for sealing against a cylindrical receiving surface; metal mesh shaft seal means for inhibiting leakage from the valve into the actuator; and a dielectric polymeric encapsulant loaded with a thermally conductive particulate substance to increase the heat-transfer modulus of the encapsulant.

Air purification apparatus is provided that removes undesirable substances, such as particulate materials, malodors, viruses, bacteria, fungi, and toxins, from the air present within an enclosed environment. The apparatus is switchable between a mode in which air immediately adjacent the apparatus housing is drawn in and purified, and a mode in which air remote from the apparatus housing is drawn in from a specific point within the enclosed environment through use of an elongate duct.

Disclosed is an electroconductive separation membrane for water treatment, the membrane comprising: a metal filter support in a fibrous form; a metal oxide coat layer deposited on the support; and a composite metal oxide catalytic layer applied onto the nanoparticles. Provided is a water treatment system in which the degradation of non-biodegradable organics by electrochemical reactions and the separation of particulate substance through a separation membrane can be simultaneously conducted by water treatment with the electrocatalytic separation membrane according to the present invention. Inaddition, such a water treatment system can exhibit an excellent treatment yield when applied to the advanced treatment of industrial wastewater and can prevent membrane fouling during batch-type andcontinuous type operation by controlling the sheet-type electroconductive separation membrane.

The invention provides a novel spray type gas absorption furnace body, which includes a furnace body, an air intake branch pipe, a spray head, an anti-backflow component, a water storage tank and a water inlet pipe; the air intake branch pipe is arranged in the furnace body, and the spray head is arranged Above the inlet branch pipe in the furnace body; an exhaust pipe is connected to the top of the furnace body, and an air suction pump is arranged on the exhaust pipe. A water inlet pipe with a funnel-shaped water-absorbing cover is provided on the upper part of the reservoir, and a water pump is arranged on the water inlet pipe, and the water inlet pipe is connected to the water inlet of the spray head; the invention can improve the absorption and settlement of by-products , especially for the settlement of the mixed gas mixed with particulate matter, the absorption of different gases can be realized by using different liquid substances, which greatly reduces the problem of environmental pollution caused by the discharge of gas.

The invention discloses an experimental device and method for measuring particle matter vibration. The device comprises a force transmission lead screw, a spring, a force sensor, a pressing rod, an upper cavity, a main cavity, a lower cavity and an air supply system. The upper cavity and the lower cavity are fastened and connected through a screw rod, and the main cavity is clamped between the upper cavity and the lower cavity to form a vertically-through sealed air cavity. The main cavity is formed by integrally processing a transparent acrylic material and is filled with particulate matters,a piston type pressure head capable of moving up and down is arranged at the top end of the main cavity, and the bottom of the main cavity is supported by an air inlet filter plate welded on the lower cavity; a pressing rod is mounted at the top of the cavity; the bottom of the lower cavity is connected with the vibrating table through flange bolts; the air outlet connecting pipe of the upper cavity and the air inlet connecting pipe of the lower cavity are respectively connected with an air supply system, and a flow meter and a pressure meter are installed on the connecting pipes. According to the invention, the thermal stress environment of particles in the cladding can be fully simulated, and the motion state of the particles under vibration can be observed while the pressure load is applied to the particle substances.

The invention discloses a method for preparing a tree whitening agent from solid waste; by using shells, eggshells, cullet, waste ceramic polishing powder and desulfurized fly ash with wide material sources and low cost as raw materials, a film-forming substance and foam glass are prepared by using a one-pot sintering technique. According to the formula of the whitening agent, lime and biogel areused as film-forming substances, foam glass is used as a thermal insulation material, CO2 is cured by a hydration product, particulate matters in air are adsorbed, and the whitening agent has bactericidal and insecticidal properties. According to an eggshell-loaded MOFs photocatalyst, sulfur dioxide in air is degraded under the condition of natural illumination. For increasing the strength of thewhitening agent after hardening, sweet water is added for mixing; a preparation method of the sweet water comprises the steps of decocting water boiling sweet potatoes at a high temperature. Social benefits and environmental benefits of protecting trees, guaranteeing public safety and purifying air are achieved.

A powder coating material including a main material resin containing an epoxy resin; a phosphorus flame retarder; and at least one inorganic particulate substance selected from metal hydroxides and hydrous metal compounds. The inorganic particulate substance has an average particle size of 0.01 to 9 μm. The inorganic particulate substance is present in an amount of 80 to 200 parts by mass relative to 100 parts by mass of the main material resin.

A process for washing a particulate substance comprising: (i) combining a particulate substance and a first washing medium in a first vessel to form a slurry and washing the particulate substance with said washing medium; (ii) transferring the slurry to a hydrocyclone; (iii) removing a first by-product stream depleted in particulate substance and a first product stream enriched in particulate substance from the hydrocyclone; (iv) transferring the first product stream to a second vessel and in the presence of a second washing medium forming a slurry and washing the particulate substance with said second washing medium e.g. by agitation thereof; (v) transferring the slurry to a hydrocyclone; (vi) removing a second by-product stream depleted in particulate substance and a second product stream enriched in particulate substance from the hydrocyclone.