12 results about "Particle suspension" patented technology

This invention relates to a particle-polymer aggregate composite oil displacement agent and its application. The oil displacement agent of this invention comprises: (A) a particle suspension containing particles and water, wherein the mass fraction of the particles is 200-2000 ppm; and (B) a polymer solution containing a polymer and water, wherein the mass fraction of the polymer is 0.01-10 ppm, and the polymer is one of the following: (B1), (B2), or (B3): (B1) an ionic polymer, wherein the ionic polymer is a cationic or anionic polymer, wherein the charge of the ionic groups on the polymer molecular chain is opposite to the charge of the particle surface; (B2) a mixture of cationic and anionic polymers; (B3) a naturally aged nonionic polymer. The oil displacement agent of this invention is low in cost, easy to inject, has a high sealing effect, and good oil displacement effect.

The invention relates to a solid fuel combustion characteristic test technology, and aims to provide a focusing single particle suspension variable atmosphere ignition combustion experiment device and method. A second microporous plate and a feed hopper are arranged at the top of a combustion chamber main body of the device, and a first microporous plate and a gas buffer cavity are arranged at the bottom; the two laser emitters are arranged in an included angle shape, and the energy of a single laser beam is lower than a fuel particle ignition threshold value; the two paths of laser intersect in the central area of the cavity to form a space energy focus, and the superposed energy of the two beams of laser can be absorbed at the position to reach an ignition threshold value; and light paths of diagnosis equipment in the optical acquisition module are intersected in a focus area. According to the invention, through a strategy of airflow disturbance and microwell plate blocking, particles completely move in airflow; the ignition behavior has spatial selectivity, the success rate is high and controllable, and the research is closer to the actual application scene. Through the design of single-particle fixed-point triggering, the system complexity and the control difficulty can be reduced, and the operation stability and the experiment repeatability can be improved.

The application provides a preparation method of a porous material loaded with mixed microorganisms, comprising the following steps: S1, preparation of a mixed bacteria suspension; S2, preparation of an activated sludge porous material; and S3, preparation of a porous material loaded with mixed microorganisms. The application also provides a preparation method of an oil-wetting and water-repellent activated sludge porous material loaded with microorganisms, which comprises spraying a hydrophobic silica particle suspension on the porous material loaded with mixed microorganisms to obtain a modified material which is oil-wetting and water-repellent. The porous material loaded with mixed microorganisms and the oil-wetting and water-repellent activated sludge porous material loaded with microorganisms can effectively degrade medium and long chain alkanes in oil, especially n-hexadecane.

This invention relates to the field of jelly production technology, specifically to a process for producing whole-fruit pulp jelly, comprising the following steps: cooking the liquid; preparation: preparation is carried out when the liquid temperature drops to 85℃-87℃, with soluble solids controlled at 16.0±0.5% and pH value between 3.8 and 4.1; filling: filling is completed within 60 minutes after preparation, with the liquid temperature at the filling machine outlet not lower than 75℃, and fruit pulp-containing contents are added during the process. This invention pre-coats whole fruit pulp (such as lychee) with a pH-sensitive colloid, such as low-methoxyl pectin, before filling. After filling, the local pH value on the surface of the whole fruit pulp drops to 3.3-3.5. Combined with the diffusion and migration of calcium ions in the liquid, this triggers the pH-sensitive colloid, such as low-methoxyl pectin, to produce a pre-gel, which significantly reduces the interfacial voids between the fruit pulp and the jelly gel body, improving the standardization of the fruit particle suspension position.

The present application relates to chlor-alkali chemical technology field, specifically to a kind of industrial wet salt particle quantitative feeding method and system.The present application takes industrial wet salt as object, and the way of weighing measurement is used to prepare sodium chloride particle suspension, improve the transportability of wet sodium chloride salt particle, simultaneously through gravity concentration preparation solid-liquid ratio stable sodium chloride particle slurry, then the quantitative feeding required by salting-out is completed by volumetric flow metering method.The method provided by the present application is simple, breaks through the technical limitation that current salting-out method can only use industrial dry salt, uses economic way to complete the high-precision delivery of industrial wet salt, improves the economic benefit of the technology of removing sulphate in brine system by salting-out method.

This invention provides a countercurrent particle suspension reactor, belonging to the field of chemical reactor technology. It includes a reaction body zone, a feeding zone, and a receiving zone. Particles enter the reaction body zone from the feeding zone, moving downwards. Airflow enters the reaction body zone from the receiving zone, moving upwards. Within the reaction body zone, the particles and airflow form a countercurrent, slowing the particle descent and allowing them to participate in the reaction. After the reaction, the particles enter the receiving zone for collection. By using countercurrent flow, the residence time of particles in the reaction body zone is extended, avoiding backmixing, agglomeration, and other undesirable behaviors within the reactor. This reactor can be used for both solid and liquid particles. The countercurrent particle suspension reactor provided by this invention solves the problems of short particle residence time and undesirable behaviors such as backmixing, agglomeration, and coalescence within the reactor in existing technologies.

A mixing technique and associated apparatus design that generates fluid flow within a fluid bag, reducing the accumulation of particles that may settle from a suspended state. The mixing system supports a flexible bag that holds the fluid to be mixed and engages with a paddle mechanism. The paddle mechanism is positioned so that the paddles are located near the bottom edge of the flexible bag, extending only partially across the bag and engaging with a portion of the bag. By activating the paddle mechanism to perform iterative displacement and release cycles, a recirculating flow of the fluid inside the bag is generated.

The present application belongs to the field of chemical equipment monitoring and control technology, and particularly relates to a kind of detection methods of particle suspension effect in stirred reactor, comprising: preparing fluorescent small balls of different sizes;Liquid is injected into the stirred reactor, all fluorescent small balls are put into the liquid, and the liquid is stirred by the stirrer;The stirred reactor is irradiated by using ultraviolet lamp, so that the fluorescent small balls in the stirred reactor emit fluorescence;The real-time monitoring module is used to collect the image of the fluorescent small balls in the stirred reactor;The fluorescent small ball image is analyzed to obtain the motion trajectory, instantaneous speed and direction of the fluorescent small balls;According to the motion trajectory, instantaneous speed and direction of the fluorescent small balls, the particle suspension effect in the liquid is obtained;The high-speed camera and intelligent image processing module can capture the particle suspension state in real time, which significantly improves the detection efficiency.

A method of evaluating performance of a flow cytometer configured to use two or more kinds of calibration particles having different morphologies in combination, the method including: a first sorting step in which the flow cytometer as an evaluation target sorts the calibration particles from each other based on a first optical property; a second sorting step of sorting the calibration particles from each other based on a second optical property that is sortable at a spatial resolution lower than a spatial resolution at which the first optical property is sortable; and an evaluation step of evaluating one or both of particle sorting performance and resolution of the flow cytometer based on a first sorting result evaluated in the first sorting step and a second sorting result evaluated in the second sorting step.

The utility model relates to shampoo production equipment technical field, concretely relates to a kind of silicon oil-free plant particle suspension stirred tank, it includes: stirring tank body and stirring mechanism, the bottom of stirring tank body is connected with the fixed discharge valve, and the top of stirring tank body is fixed with fixed frame, and stirring mechanism is set on stirring tank body.The utility model in the present application, by being provided with stirring mechanism on stirring tank body, and by starting drive motor, rotation is carried out using drive motor gear three, and gear three is engaged with gear one and gear ring, so that rotating shell, multiple stirring plate, rotating cylinder and multiple stirring rod are rotated, multiple stirring plate and multiple stirring rod are rotated using, to facilitate the stirring mixing of shampoo material, and the rotating direction of stirring rod and stirring plate is opposite, and the rotating speed is different, so that shampoo material is bidirectional stirred, so that the shear force received by shampoo material in stirred tank will increase, and then accelerate the dispersion and mixing of shampoo material.