88results about How to "Improve clogging" patented technology

A light scattering sensor is provided with a cylindrical lens focusing received light along substantially parallel lines, or bands, that correspond to a range of scattering angles and a linear detector that detects the light intensity along the substantially parallel lines. By using a cylindrical lens, the lens serves as an auto-collimator, whereby light scattered at a specific angle from the collimated light beam strikes the linear detector at a corresponding specific location regardless of the location from where the light was scattered. Embodiments of the cylindrical lens-based light sensor can be applied to a number of different applications and industries that analyze light scattering intensity as a function of scattering angle. For example, embodiments of the cylindrical lens-based light scattering sensor can be used for monitoring a target fluid for contaminants.

The present invention relates to a bioreactor and a method for operating a bioreactor which comprises a chamber (100) capable of receiving a liquid media, and a filter assembly (200) comprising a perfusion filter (210; 212; 214). The filter assembly (200) is disposed in the chamber (100) and the filter assembly (200) is free to move within the chamber (100). The filter assembly (200) comprises means for coupling a harvesting flow through said filter (210; 212; 214) and means for coupling a feed flow through said filter in an opposite direction compared to the harvesting flow. Through this arrangement, the clogging prevention of the perfusion filter can be improved.

The invention belongs to the field of waste incineration equipment and particularly relates to a fixed grate incinerator comprising a main combustion chamber and a fixed fire grate. The fixed fire grate is arranged obliquely, the higher end is provide with a material input end, the lower end is provided a slag outlet for slags after material combustion, and the slag outlet is communicated with a slag discharging component; a hot air chamber is arranged below the main combustion chamber; a hot air supply path penetrates the fixed fire grate; the fixed grate incinerator further comprises an ejecting rod and a power portion; the maximum lift of the ejecting rod penetrates the material layer of the fixed fire grate; an ejecting rod component further comprises a shaft sleeve with the preset length, one end of the shaft sleeve penetrates and is fixedly connected to the fixed fire grate along the moving direction of the ejecting rod, a vent gap allowing the air to penetrate is formed between the shaft sleeve and the ejecting rod, and the other end of the shaft sleeve is communicated with the outside and / or an air cooling chamber. The fixed grate incinerator has the advantages that material burning efficiency is high, the component operation reliability is high, and the service life is prolonged effectively.

The invention discloses impermeable wear-resistant concrete and a preparation method thereof, and relates to the technical field of concrete preparation. The impermeable wear-resistant concrete comprises the following raw materials: cement, fly ash, blast furnace slag, quartz sand, broken stone, carbon black, a fiber filler, sodium alkyl benzene sulfonate, a water reducer, polyvinyl alcohol, an impermeable wear-resistant composition and water. The preparation device comprises a batching mechanism, a lifting and conveying mechanism and a mixing and stirring mechanism, wherein the discharging port end of the batching mechanism is connected with the feeding end of the lifting and conveying mechanism; and the discharging end of the lifting and conveying mechanism is connected with the discharging end of the mixing and stirring mechanism. According to the impermeable wear-resistant concrete and the preparation method thereof provided by the invention, prepared materials can be transferred at the same time, so that automatic unloading after weighing is realized; the inner wall of a lifting pipeline can be effectively prevented from being blocked while the materials are lifted and conveyed upwards; and the preparation method is simple, and the prepared concrete has the characteristics that the water-reducing rate is high, the workability and the fluidity of the road concrete are obviously improved, and the impermeability, the freezing resistance, the fracture resistance, the compression resistance, the wear resistance and the durability of the road concrete are improved.

The invention belongs to the technical field of powder processing equipment, and particularly discloses a powder grinding device for producing a water-soluble coating. The powder grinding device comprises a processing barrel and a circulating barrel; a movable grinding block and a fixed grinding block which can be coordinated to grind powder are arranged in the processing barrel; the interior of the movable grinding block is hollow; sieve holes are formed in the side wall of the movable grinding block; a funnel-shaped channel is formed in the fixed grinding block; a fixed shaft is arranged onthe inner wall of the movable grinding block, and a closed curve sliding chute is formed in the inner wall of the movable grinding block; semicircular filter screens are hinged to the two sides of thefixed shaft; grooves are formed in the circumferential lines of the filter screens; a motor is arranged at the upper end of the processing barrel and is connected with a rotating shaft, and the rotating shaft can drive the movable grinding block to rotate; two movable rods are hinged to the bottom end of the rotating shaft and are connected in the sliding chute and the grooves in a sliding mode;a circulating material port is formed in the fixed grinding block; a spiral conveying mechanism is connected outside the circulating material port; and the upper end of the circulating barrel communicates with a feeding pipe. According to the scheme of the powder grinding device, the phenomenon that the filter screens are blocked after the powder is ground can be avoided, and unqualified powder can be circularly ground.

The present invention relates to a 3-d channel gas heat exchanger. The 3-D channel gas heat exchanger includes a plurality of heat exchange plates configured to have heating surface units for exchanging heat formed on one sides of the heat exchange plates and a plurality of passages and that are formed in between the plurality of heat exchange plates and wherein the plurality of passages comprise, first passages configured to convey a first fluid having a first temperature through the first passages, second passages configured to convey a second fluid through the second passages for transferring heat to the first fluid having the first temperature and third passages configured to prevent freezing in the second passages by transferring heat to at least some of the second passages when a temperature (T) of the second fluid is below a predetermined temperature value (Tref).

In a rod lens array having a structure in which a plurality of rod lens elements are arranged between two side panels and a resin is filled and cured in spaces between the rod lens elements to be integrally formed, the side panels are made of a glass fiber reinforced epoxy resin and a phenol-based curing agent is used as a curing agent of the epoxy resin. In detail, the curing agent is exemplified by a phenol-based curing agent including a tris-hydroxyphenyl-methane skeleton.

The invention relates to a method for reversing gas humidity on the surface of a rock core by using cationic fluorocarbon surfactant. The humidity reserving treatment agent used by the method contains the cationic fluorocarbon surfactant, a quaternary ammonium salt surfactant and a polar fluid, preferably FC911, hexadecyl trimethyl ammonium bromide and water. The invention also provides a method for reversing the humidity on the surface of sandstone into gas humidity, which comprises: pumping a humidity reversing treatment agent which contains 0.1 to 1 weight percent of cationic fluorocarbon surfactant into a rock stratum of a gas oil well till the entire surface of the sandstone in the rock stratum is immersed in the humidity reversing treatment agent; and thus, realizing the reversion into the gas humidity on the surface of the rock core. The method can effectively reserve the liquid humidity on the surface of the sandstone into gas humidity. The method is simple, convenient and easy.

The present invention provides an aqueous composition for coating substrates comprising: one or more emulsion copolymer, the emulsion copolymer being a copolymerization product of a monomer mixture comprising a monomer of formula I,

A manufacturing method for ultrathin glass includes the following steps: providing at least one glass; fixing the glass in an upright standing state; atomizing an etching solution to obtain an atomized etching solution; and conveying the atomized etching solution to at least one nozzle of at least one liquid guiding tube through the at least one liquid guiding tube, and sprinkling the atomized etching solution onto the surface of the glass through the at least one nozzle. The flat ultrathin glass can be manufactured through the method.

The invention provides an OLED display panel and a manufacturing method thereof, and an OLED display apparatus. The OLED display panel comprises a light-emitting layer containing white sub pixels and colorful sub pixels; and the dimension of one white sub pixel is equal to the sum of dimensions of at least two colorful sub pixels and the number of the colorful sub pixels is less than the number of primary colors forming colors. Besides, the OLED display panel also includes a color membrane containing colorful stop blocks matching the colorful sub pixels; and the colorful stop blocks are arranged at one side, facing the display side, of the light-emitting layer and are located at positions corresponding to the location of the white sub pixels. With the OLED display panel, the qualities of the OLED display panel and the display apparatus can be improved; and one mask and evaporation process can be reduced, thereby improving the production efficiency. Therefore, the economic benefits are increased.

The invention relates to an efficient casing pipe type air heater device. The device is provided with a steam header (7) on the upper portion of one end in an outer frame (9); one end of the steam header (7) is connected with a steam inflow pipe (5); the other end of the steam header (7) is connected with an inner pipe (1); the exterior of the inner pipe (1) is sleeved with an outer pipe (2); oneend of the outer pipe (2) is closed by an outer pipe plug (3); fins (4) are wound on the outer wall of the outer pipe (2) to form a fin pipe: the lower portion of one end in the outer frame (9) is provided with a hydrophobic header (8); one end of the hydrophobic header (8) is connected with a hydrophobic pipe (6); and the other end of the hydrophobic header (8) is connected with an outer pipe (2). A coaxial type structure is adopted for the device, and fluid enters from the inner pope, returns through a folding back chamber, and returns through a sandwich layer channel between the outer pipeand the inner pipe. The temperature distribution of the outer wall of a whole casing pipe tends to be uniform in the pipe length direction, and the phenomena of hot expanding leakage, bend brushing leakage and outlet hydrophobic icing and the like can be well avoided. The efficient casing pipe type air heater device has the beneficial effects of being compact in structure, easy to machine, low incost, long in service life and the like.

The invention provides an automatic dredging sewage discharge ditch. The automatic dredging sewage discharge ditch comprises a ditch body and an electric gate which is disposed at the head end of the ditch body. The electric gate is driven through a servo motor; a head end hydraulic pressure gauge is disposed at the bottom, on the rear side of the electric gate, of the ditch body, and a tail end hydraulic pressure gauge is disposed at the bottom of the tail end of the ditch body; the head end hydraulic pressure gauge and the tail end hydraulic pressure gauge are together coupled to a motor controller; and the motor controller controls the servo motor according to hydraulic pressure data which are sensed through the head end hydraulic pressure gauge and the tail end hydraulic pressure gauge. Specifically, when the situation that the pressure difference of the head end hydraulic pressure gauge and the tail end hydraulic pressure gauge is larger than a first set value occurs and the duration of the situation is longer than set time, the electric gate is closed; and when the pressure of the head end hydraulic pressure gauge and the pressure of the tail end hydraulic pressure gauge are smaller than a second set value, the electric gate is opened. The automatic dredging sewage discharge ditch can automatically detect whether the ditch is blocked or not and automatically perform cleaning to eliminate the blocking phenomenon so that the maintaining cost of the sewage discharge ditch can be greatly reduced.

The invention relates to a deoxidation catalyst for an oil product, a preparation method thereof and a catalytic hydrogenation method for removing dissolved oxygen in the oil product by adopting the catalyst. The deoxidation catalyst for the oil product takes gamma-alumina which has the specific surface area of between 50 and 300m<2>/g and the pore volume of between 0.2 and 2.0cm<3>/g as a carrier, palladium supported on the carrier as a main catalytic element, and one of silver, tin and lead as a co-catalytic element; and the preparation method thereof comprises two steps of the preparation of the alumina carrier and the preparation of the catalyst. The catalytic hydrogenation method for removing the dissolved oxygen in the oil product by adopting the catalyst comprises the following steps that: the oil product is fully mixed with hydrogen before the oil product enters a hydrogenation reactor; and then the mixed oil product enters the reactor and is contacted with the deoxidation catalyst. The catalyst has high strength and good deoxidation stability, can still have higher activity under lower temperature and pressure, can keep higher reaction activity for a long time, and ensure that the removal rate of trace oxygen in the oil product can reach over 90 percent.

The invention relates to a method for producing hydrogen peroxide by converting hydrogen and oxygen in the presence of a liquid reaction medium and a particulate noble metal support catalyst in a fixed-bed reactor, wherein the liquid reaction medium and a gas phase containing hydrogen and oxygen flow against the fixed bed from below. The fixed bed is arranged in the reactor such that the volume of the fixed bed expands by 1 to 10% in the operating state relative to a rest state without a flow against the fixed bed. As a result of the fixed bed expansion according to the invention, the fixed bed can be prevented from clogging due to abrasions on the catalyst.

The invention discloses a gas engine air dust catcher without filter core, the product is a dry type and direct discharging air dust catcher, the principle is; it uses the strong air flow generated when the air flows, through the separation to the air, the particle dust in the air is discharged through the eccentric force, at the same time, it uses speed adjustable dust discharging fan to increase a transverse dust eliminating force at the side surface, and the tiny dust in the air is cleaned out. The invention can be used matching with the gas engine directly; it also can be used matching with the air filter, in order to upgrade the air quality further. The advantages are economic, high dust eliminating effect, long service life and low cost.

A printer includes a print head in which nozzles that form an image by discharging ink are arranged in a plurality of lines. The printer prints out an image on the basis of print form data in which information of layout contents of printing elements that form the content of print is set according to the attribute of each printing element. The printer includes a print form data storage unit, a printing element data storage unit, a print form data selection unit, a printing element data selection unit, and a printing element data insertion unit. The print form data selection unit selects a piece of print form data, which is used for printing, from multiple pieces of print form data stored in the print form data storage unit in a specific sequence that is set so that, when the printing is continuously performed, the frequencies of use of the nozzles of the print head are uniform and are equal to or higher than a predetermined frequency.

The invention discloses a floatation method and device for a coarse-particle floatation column. When the coarse-particle floatation column works, pulp is led in the column from a feeding pipe which is located at the inlet of a column body, and declines gradually along the whole fracture section of the column body, and compressed air with certain pressure is inflated in the column through an air inflation device located on the lower portion of the column body; a large amount of tiny bubbles gradually rise along the whole fracture section of the column body, the pulp and the bubbles form convective motions, and mineral particles and the bubbles make contact with each other sufficiently; by symmetrically arranging cyclic pipelines on the two sides of the column body, the cyclic pipelines communicate with the air inflation device located at the bottom, by opening valves of a certain section of or several sections of cyclic pipelines, with assistance of floatation of the bubbles, floatable coarse particles attached to the bubbles can be conveyed to certain height through the pressure generated by a cyclic pump, and the coarse particles are carried by the bubbles to float to the surface of the pulp and form a foam layer, and the coarse particles automatically spill over as concentrates. Gangue minerals which cannot float falls in the lower portion of the column body, are collected by a cone body part, and then are discharged from a tailing pipe. The floatation device is simple in structure, obvious in effect and high in practicability.