1367 results about "Slurry flow" patented technology

The application of a gas analyzer for gas mud logging is presented to measure gases in the return mud flow used in drilling processes. A supported membrane extraction probe from the analyzer is inserted into the mud flow. The probe extracts target gases from the mud through the membrane. Extracted gases are transported by an internal pump to an internal gas sensor unit. The infrared sensor unit is utilized to subject the gases to infrared emitted energy to excite the gasses at a molecular level for sensing and detection. The sensor then transfers sensed values electronically to a digital conditioning board. As the data is digitized in the conditioning board it is encoded with information to enable a means of correlating the derived sensor data. The data is then sent to a digital wireless transceiver for transport to a remote receiving transceiver connected to a microprocessor for data logging.

The invention relates to a light-weight calcium silicate plate and a preparation method thereof. The light-weight calcium silicate plate comprises the following components in percentage by mass: 11-44.4% of siliceous filler, 30-40% of cement, 4.4% of calcific filler, 6-10% of fiber material, 3-5% of inorganic filler and 3-10% of reaction assistant, wherein the siliceous filler contains a light-weight siliceous material accounting for 22.2-44.4% of the total mass of the light-weight calcium silicate plate; and the sum of the mass percents of the components is 100%. According to the invention, the light-weight calcium silicate plate having low density and high strength is prepared through a slurry flow process by completely using high-activity amorphous kieselguhr instead of the traditional quartz sand as the siliceous material; and the process is simple and can be completed according to the existing technical process without changing the original calcium silicate plate production line and production conditions, and the production process does not increase the cost and can still achieve favorable effect.

A gasifier injection module includes a two-stage slurry splitter and an injector face plate with a coolant system incorporated therein. The two-stage slurry splitter includes a main cavity into which a main slurry flow is provided. The main cavity includes a plurality of first stage flow dividers that divide the main slurry flow into a plurality of secondary slurry flows that flow into a plurality of secondary cavities that extend from the main cavity. Each secondary cavity includes a plurality of second stage flow dividers that divide each secondary slurry flow into a plurality of tertiary slurry flows that flow into a plurality of slurry injection tubes extending from the secondary cavities. The tertiary flows are injected as high pressure slurry streams into the gasification chamber via the slurry injection tubes. A reactant is impinged at high pressure, as an annular shaped spray, on each high pressure slurry stream via a plurality of annular impinging orifices incorporated into the injector face plate. The coolant system incorporated within the injector face plate maintains the injector face plate at a temperature sufficient to substantially reduce or prevent damage to the injector face plate by high temperatures and/or abrasive matter created by the resulting gasification reaction.

A process for the enzymatic hydrolysis of cellulose to produce a hydrolysis product from a pre-treated cellulosic feedstock is provided. The process comprises introducing an aqueous slurry of the pre-treated cellulosic feedstock at the bottom of a hydrolysis reactor. Axial dispersion in the reactor is limited by avoiding mixing and maintaining an average slurry flow velocity of about 0.1 to about 20 feet per hour, such that the undissolved solids flow upward at a rate slower than that of the liquid. Cellulase enzymes are added to the aqueous slurry before or during the step of introducing. An aqueous stream comprising hydrolysis product and unhydrolyzed solids is removed from the hydrolysis reactor. Also provided are enzyme compositions which comprise cellulase enzymes and flocculents for use in the process. In addition, a kit comprising cellulase enzymes and flocculent is provided.

The invention relates to a technique for efficiently removing iron from kaolin by magnetic separation, which is characterized by comprising the following steps: (1) purifying kaolin raw ore to obtain a magnetic separation raw material; (2) adding water to the magnetic separation raw material obtained in the step (1) to prepare a mixed slurry with the solid content of 10-20 wt%, adding sodium hexametaphosphate accounting for 0.2-0.6 wt% of the magnetic separation raw material, slurrying, stirring for 20 minutes, and passing through a 325-mesh wet sieve; (3) carrying out high-gradient magnetic separation on the undersize slurry of the 325-mesh sieve in the step (2): while controlling the magnetic field intensity of the high-gradient magnetic separator at 1.0-1.8T and the slurry flow rate at 0.8-1.8cm/s, the slurry is subjected to magnetic separation by the high-gradient magnetic separator to obtain a concentrate slurry; (4) adding alum accounting for 1-6 wt% of the concentrate slurry into the concentrate slurry obtained in the step (3), flocculating, carrying out pressure filtration, drying, and packaging to obtain a magnetic concentrate; and (5) calcining the magnetic concentrate obtained in the step (4) to obtain the calcined kaolin. The technique has the advantages of high iron removal efficiency and obvious whitening effect.

The invention relates to a construction method for carrying out high dehydration on a dredging slurry by using swirling flow, condensation, and plate-and-frame, comprising the following steps: conveying dredging slurry with the concentration of 15-20 % into a crude vibrating screen by a conveyer, and screening out large particles and impurities; then separating the slurry by a large-scale cyclone to obtain a downstream slurry and an upstream slurry, letting the downstream slurry pass through the fine vibrating screen to obtain sediments on the screen and a screened condensed slurry, letting the upstream slurry flow into a coagulation sedimentation basin to obtain a condensed slurry and a supernatant; precipitating the screened condensed slurry and the condensed slurry in a mud storage pond, and then hydrating with a plate-and-frame filter press to obtain a mud cake and filter-press tail water; using the sediments on the screen and the mud cake as engineering filling, and processing the supernatant of the sedimentation basin and the filter-press tail water through a tail water processing system to discharge with a standard level. According to the invention, the water content of the low-concentration dredging slurry is reduced gradedly and rapidly, thus the problems that stockyards of a lot of dredging slurry occupy land and the dredging slurry cannot be used directly are effectively solved.

A nozzle design and method for designing such a nozzle being adapted for three phase slurry flow from the choke into the flash tank during pressure let-down in autoclave mining operations that uses a selection of the expansion ratio in the choke to select a nozzle dispersion angle to select a spread of the flow over the slurry pool in the flash tank, to generally maximize the use of the pool for energy dissipation without causing undo wear and tear on the tank walls.

A sensitive particle distribution probe uses special processing including a modified Twomey/Chahine iterative convergence technique and a specially constructed sample cell to obtain particle size distribution measurements from optically dense slurries, such as the slurries used in the semiconductor industry for chemical mechanical planarization. Spectral transmission data is taken over the spectral range of 0.20-2.5 microns, utilizing specially constructed, chemically resistant sample cells of 50-2000 microns thickness, and miniature, fixed grating, linear detector array spectrometers. At wavelengths greater than one micron, the preferred design utilizes InGaAs linear detector arrays. An ultrasonic disrupter can be employed to breakup harmless soft agglomerates. In addition to direct particle size distribution measurement, the invention described here could be used to detect other fundamental causes of slurry degradation, such as foaming and jelling. The probe accomplishes continuous, real time sampling of undiluted slurry. A three-position chopper allows automated operation in an industrial environment without the need for frequent reference spectra, which would require taking the probe off-line. In other embodiments, the invention provides a quality control and/or particle size measuring system for CMP slurries using transmission data through an as-used CMP slurry flow. The process of the invention detects transmission through the flow, at select wavelengths, and determines changes in the logarithmic slope of transmission versus wavelength to detect acceptable or unacceptable CMP slurries. The process can further determine CMP slurry particle size through empirical extinction data stored in memory.

Apparatus and method are disclosed for introducing ion exchange or other particulates into compartments of an already-assembled electrodeionization or comparable stack by modulating a flow of slurry into the compartments with slugs of gas such as air. The air propels liquid through the cells, scavenging ponded liquid so that the particulates (which are retained, e.g., by a strainer or obstruction, in compartment of the apparatus) are deposited as well-packed beds to fill the compartments. Pressurized air filling protocols may deliver discrete slugs of slurry between bursts of air, and the direction of filling may be periodically reversed to diminish particle bed non-homogeneities or settling gradients that arise during transport. The slugs of air may be applied in the direction of slurry flow, in the reverse direction, or both. Different slurries may be transported in a sequence to form layered and packed beds of enhanced utility. An apparatus of the invention has filled compartments of enhanced packing, and is ported or has its passages arranged so that ion exchange material may be filled, or may be replenished by a fluidized flow according to a method of this invention.

A method and apparatus for providing an evenly mixed additive enhanced gypsum slurry to a web. Calcined gypsum and water are inserted into a mixer through at least one inlet of the mixer. The contents are agitated to form a slurry. The slurry is passed from an outlet of the mixer into a conduit. An additive is introduced into the slurry along a length of the conduit to achieve a flow stream of a slurry/additive mixture. A cross section of the flow stream is expanded in the conduit while not changing direction of the flow stream and a direction of the flow stream is changed while not expanding the cross section of the flow stream and conduit, all prior to the flow steam exiting from an outlet of the conduit.

The invention discloses an experimental simulation device for solid-state fluidized exploiting of ocean natural gas hydrate and particularly provides the experimental simulation device for the solid-state fluidized exploiting of the ocean natural gas hydrate, which is applied to the field of ocean natural gas hydrate experiments. The experimental simulation device for the solid-state fluidized exploiting of the ocean natural gas hydrate, provided by the invention, can be used for simulating relations among a flowing pattern, a phase change, a decomposition speed and the like when hydrate slurry flows through conveying pipelines in a solid-state fluidized exploiting process, and a flowing speed, a temperature and pressure; and the experimental simulation device comprises a horizontal circulating reaction experiment pipeline, a vertical circulating reaction experiment pipeline and a hydrate preparation and treatment system. The pressure is adjusted for a plurality of times and voltage is adjusted for a plurality of times, and different seawater depths and seawater temperature conditions are simulated; and the relations among the flowing pattern, the phase change, the decomposition speed and the like when the hydrate slurry moves and flows in a vertical pipeline and a horizontal pipeline in the solid-state fluidized exploiting process, and the flowing speed, the temperature, the pressure and a crushing grain diameter of the hydrate are simulated.

Apparatus, including a signal processor, featuring at least one module configured to respond to signals containing information about sound propagating through a slurry flowing in part, including overflow pipes, of cyclones operating in parallel on a cyclone battery, and determine the performance of individual cyclones based at least partly on the information contained in the signals. The signal process may form part of a non-invasive acoustic-based passive monitoring system, comprising: cyclones and sensors; where the cyclones are configured in parallel to form a cyclone battery in order to process a slurry, each cyclone having an overflow pipe for providing some portion of the slurry flowing in the cyclone battery, where each sensor is configured to mount on a respective overflow pipe of a respective cyclone, to respond to sound propagating through the slurry flowing in the respective overflow pipe of the respective cyclone, and to provide a respective signal containing information about the sound propagating through the slurry flowing in the respective overflow pipe of the respective cyclone; and where the signal processor is configured to respond to respective signals from the sensors and determine the performance of individual cyclones based at least partly on the information contained in the respective signals.

The invention relates to a swirling inlet type electrostatic spraying wet flue gas desulphurization dedusting apparatus for the purpose of purifying exhaust gas, comprising a spray reaction tower, an electrostatic spraying device, a demister, a flow controller, a control signal sensor, an induced draught fan, an exhaust gas inlet and a waste material inlet. In the invention, the method of electrostatic spraying, in which annular electrodes and acicular electrodes are combined to carry out induction charging and corona charging, further refines droplets of a slurry and enables high pressure polarization of charged and non-charged droplets, thereby generating an additional driving force of mass transfer; air enters through swirling inlets, thereby increasing the contact time between flue gas and droplets; a concentration on-line monitoring device is employed to automatically adjust static voltage and slurry flow and to guarantee that desulphurization efficiency is maintained in a certain scope, thereby meeting discharge standard as well as enhancing economic benefits. The flue gas desulphurization dedusting apparatus provided in the invention has high efficiency, a reduced liquid-gas ratio, low operation cost and a moderate price, and is ideal environmental protection equipment.

An embodiment of the invention discloses a pH value control method of limestone slurry in a desulfurization system. The method includes acquiring supply slurry flow theory value according to mass flow of SO2 entering an absorption tower, determining pH primary value that the mass flow of the SO2 entering the absorption tower corresponds to according to function relation between the mass flow of the SO2 and the pH primary value, comparing the pH primary value and measured current pH value of limestone slurry to obtain supply slurry flow modification value, modifying the supply slurry flow theory value according to the supply slurry flow medication value and controlling actual supply slurry flow of limestone slurry according to modified supply slurry flow value. The function relation is formed by matching mapping data between the mass flow of the SO2 entering the absorption tower and the actual pH value of the limestone slurry in the absorption tower in advance under the condition that the preset desulfurization efficiency requirements are met. The pH value control method achieves complete automation of pH value control.

The invention discloses a using method of round-head T-shaped pile manufacturing equipment. A first arm shaped like a Chinese characteristic 'gan' and a second arm shaped like a Chinese characteristic 'gan' move synchronously and move left and right relatively. When the first arm shaped like the Chinese characteristic 'gan' and the second arm shaped like the Chinese characteristic 'gan' move synchronously and move left and right relatively, first stirring teeth and second stirring teeth on the first arm shaped like the Chinese characteristic 'gan' and first stirring teeth and second stirring teeth on the second arm shaped like the Chinese characteristic 'gan' are used for drilling soil outside four drill bits and in a T-shaped frame composed of the first arm shaped like the Chinese characteristic 'gan' and the second arm shaped like the Chinese characteristic 'gan' and enabling the soil to be stirred with high-pressure water to be slurry, and the slurry flows out of holes; and round-head T-shaped holes can be formed when a drill rod is pushed downwards.

The invention provides an implementation method for a rhombus composite stirring pile forming machine. When the rhombus composite stirring pile forming machine works, a motor drives a rotary pipe to rotate, when rotating, the rotary pipe drives a stirring head at the lower end of the rotary pipe and first cutter teeth at the lower portion of the stirring head to rotate, high-pressure water flows into the upper end of a lengthening pipe, flows into the stirring head through the lengthening pipe and the stirring head and flows out through multiple slurry outlets in the lower portion of the stirring head, the stirring head and the first cutter teeth at the lower portion cut soil in the rotation process, and the soil and water are stirred to form slurry. Meanwhile, a first oil drive cylinder, a second oil drive cylinder, a third oil drive cylinder and a fourth oil drive cylinder simultaneously stretch and retract ceaselessly, so that a rhombus frame is driven to move back and forth up and down, multiple first cutter teeth at the lower portion of the rhombus frame and multiple second cutter teeth in the rhombus frame cut oil in the rhombus frame and outside the stirring head when moving back and forth up and down, the soil and water are stirred to form slurry, and the slurry flows from the inner sides of holes to the outer sides of the holes to form rhombus holes.