11results about How to "Low solids" patented technology

The invention relates to the technical field of drilling equipment, in particular to a drilling mud reverse circulation flushing device which comprises a drilling cutting separating device, the drilling cutting separating device comprises an outer shell, and the interior of the outer shell is divided into a separating area and a discharging area through a partition plate; a liquid outlet is formed in the position, located in the separation area, of the outer side wall of the outer shell, a drilling cutting separation assembly is arranged in the separation area, and the drilling cutting separation assembly comprises an inner intercepting net. According to the device, the feeding pipe, the inner intercepting net and the outer intercepting net are arranged in a matched mode, the first motor is started, the inner intercepting net and the outer intercepting net rotate in the opposite directions, stronger shearing force is formed in the outer shell, the blocking risk of the filter net is reduced, and the separation efficiency of drilling cuttings is improved. The separating hopper is arranged at the bottom of the drilling cutting separating assembly, the blocking mechanism is arranged in the separating hopper, and the conveying mechanism is arranged below the separating hopper, so that the drilling cutting can be automatically conveyed to the outside through the conveying mechanism, and the labor intensity of workers is relieved.

The invention provides polymer nanofiber formed particles, a preparation method thereof and lithium battery diaphragm coating slurry comprising the polymer nanofiber formed particles. The polymer nanofiber formed particles are prepared by the preparation method, and the method comprises the following steps: preparing polymer nanofibers into a dispersion liquid, stirring, homogenizing and emulsifying, drying at low temperature, heating and crystallizing, crushing and sieving, and demagnetizing, so as to obtain the polymer nanofiber formed particles. The viscosity of the dispersion liquid is less than 500 cp. The invention further provides lithium battery diaphragm coating slurry, and a preparation method of the lithium battery diaphragm coating slurry comprises the following steps: mixing the polymer nanofiber molding particles, a water-based dispersant and pure water to obtain dispersed slurry, uniformly mixing the dispersed slurry with an anti-settling agent aqueous solution, grinding to obtain ground slurry, mixing the ground slurry, an adhesive and a wetting agent, and uniformly stirring to obtain the lithium battery diaphragm coating slurry. The lithium battery diaphragm coating slurry is obtained. The coating slurry prepared from the polymer nanofiber formed particles provided by the invention has the excellent characteristics of high solid content and low viscosity, so that the comprehensive performance of the diaphragm is remarkably improved.

This utility model relates to the field of pulping machine technology and discloses an environmentally friendly grinding and pulping machine, including a frame. A pulping chamber is fixedly installed in the inner cavity of the frame, and a grinding chamber is fixedly installed on the top. A feeding chamber is fixedly installed on the top of the grinding chamber. Two grinding rollers are symmetrically and rotatably installed on the inner wall of the feeding chamber. Gears are fixedly connected to the outer sides of the two grinding rollers, and the power output shaft of a servo motor is fixedly connected to the outer side of one of the gears. A rotating pipe is rotatably installed on the inner wall of the pulping chamber. By connecting the end of the connecting pipe away from the rotating pipe to a water supply pipe, a water pump can be driven to discharge water through the connecting pipe to the inner wall of the rotating pipe and the outlet pipe. The inner wall of the pulping chamber is rinsed by a nozzle, and the rotating pipe can rotate to rinse, ensuring automated and comprehensive cleaning. A screening screen is used to separate large volumes of material, reducing the solids in the pulp.

The application provides a cyclododecatriene preparation reaction post-processing process and system, which comprises the following steps: a termination process, in which a termination agent is mixed with a CDT reaction solution to perform catalyst quenching, so as to obtain a first mixture; wherein the termination agent comprises an alcohol, a phenol or a mixed solution of the alcohol and the phenol; a first extraction process, in which lye is used to extract the first mixture after cooling operation, so that a first oil phase is obtained and input into a second extraction process; and the second extraction process, in which pure water is used to extract the first oil phase, so that a second oil phase is obtained and input into a subsequent rectification separation process to obtain a cyclododecatriene product with high purity. The catalyst inactivation effect of the process is good, the loss rate of the CDT product obtained after the subsequent rectification separation is reduced, and the product recovery rate is high; the CDT reaction solution treated by the process avoids the equipment corrosion problem in the subsequent process, can reduce the equipment investment cost, simultaneously reduces the solid content and ensures the stable and continuous operation of the device.

The invention discloses an aerobic treatment system for livestock and poultry excrement and urine sewage, which comprises: a sewage collection tank, one side of which is connected to a sewage pipe through a pipeline; a solid-liquid separation system, one end of which is provided with a sewage inlet, the sewage inlet is connected to the sewage collection tank through a pumping pump, one side of the solid-liquid separation system is provided with a sewage pipe for discharging liquid sewage passing through a screen, and the other side of the solid-liquid separation system is provided with a feed pipe; a composting mechanism is arranged outside the solid-liquid separation system and connected to the feed pipe; a static tank is arranged on one side of the solid-liquid separation system, the outside of the static tank is connected to the sewage pipe through a sewage pump 1, the bottom channel of the static tank is connected to an external membrane filtration system, and the upper channel of the static tank is connected to a centrifugal separator through a sewage pump 2; an aerobic fermentation system is connected to a clarifying separation channel of the centrifugal separator, and the turbid liquid separation channel of the centrifugal separator is connected to the external membrane filtration system.

The utility model discloses an industrial wastewater treatment desilting device which comprises a treatment box, a liquid inlet is formed in the upper surface of the treatment box, a liquid inlet groove is installed outside the liquid inlet, and according to the industrial wastewater treatment desilting device, the interior of the treatment box is divided into a separation cavity, a desilting cavity, a sludge discharging cavity and a water storage cavity; according to the industrial wastewater treatment device, a liquid mixture of industrial wastewater and a flocculent medicament can be subjected to desilting treatment in an independent space, and treated sludge precipitates and water are separated, stored and discharged, so that secondary mixing is avoided, the solid content in the wastewater is reduced, and the aim of purifying a water body is fulfilled; through the motor, the transmission shaft, the spiral mud removal plate and the drainage holes in the surface of the spiral mud removal plate, mud removal treatment can be carried out on a liquid mixture, and sludge precipitates obtained after cleaning are guided and thrown into the mud discharge cavity to be independently discharged; sludge sediments adhered to the side wall of the sludge discharging cavity and the lower surface of the inner cavity of the sludge discharging cavity can be scraped through the sludge cleaning rod and the sludge cleaning block.

The invention provides a dust removal method for crude synthesis gas of a coal gasification system, which belongs to the technical field of coal chemical industry and comprises the following steps: introducing the crude synthesis gas with solid particles discharged by a gasification furnace into a gas-solid separation unit to separate solids in the crude synthesis gas; solids intercepted by the gas-solid separation unit are discharged out of the coal gasification system; introducing the filtered synthesis gas into a washing tower, and washing the synthesis gas with washing water; discharging the washed synthesis gas from the washing tower; according to the invention, the crude synthesis gas is purified in a mechanical filtration manner, the amount of solids entering the washing tower is reduced, the synthesis gas washing process is optimized, the production process is simplified, pollution and water consumption are reduced, energy waste is reduced, and equipment investment and operation cost are reduced.

The utility model provides a kind of effectively improve reaction kettle device of triethylaluminium production efficiency, it solves the problems, such as aluminium powder reaction rate reduction and stirring system abrasion, it includes reaction kettle main part, reaction kettle main part inside rotation is installed with the stirring shaft extending along axial direction, fixed sleeve is installed between the stirring shaft lower end and reaction kettle main part, stirring disc connected with stirring shaft is rotationally installed at the bottom of reaction kettle main part, stirring blade is installed on stirring disc and adjusting assembly is arranged between stirring blade and stirring disc, high-pressure circulating pump is connected to the bottom and top of reaction kettle main part by circulation pipe.The utility model has the advantages of good reaction effect, stable structure and the like.

The invention provides an anhydride low-sensitive polycarboxylate superplasticizer as well as a preparation method and application thereof, maleic monoester subjected to alcoholysis of maleic anhydride and ethylene oxide are subjected to ring opening polymerization to prepare an intermediate, carboxyl in maleic ester is esterified by ethylene oxide, part of carboxylic acid is protected, main chain cross-linking is prevented, and the anhydride low-sensitive polycarboxylate superplasticizer is prepared. The quality of the polymer is improved; later-stage precipitation is prevented; the slump retaining performance of the slump retaining agent is further improved by protecting carboxyl through esterification, so that the doping amount of the slump retaining agent in the application process of the water reducing agent is lower, and the effect is more obvious. Compared with the prior art, the high-conversion-rate low-sensitivity viscosity reduction type mother liquor is synthesized through copolymerization of the isopentenol polyoxyethylene ether, the maleic anhydride and the functional monomer of the maleic anhydride, the solid content of a base solution and the use amount of a catalyst are adjusted, so that the high-conversion-rate low-sensitivity viscosity reduction type mother liquor can be subjected to a polymerization reaction at the normal temperature, and the reaction energy consumption at the normal temperature is low. The maleic anhydride functionalized intermediate participates in the free radical polymerization reaction, and the monomer conversion rate of the reaction product is generally higher than 80%.

The utility model discloses a settling type continuous filtering and washing device which comprises a settling section, a washing section and a draining section which are connected in sequence. A filtrate side overflow port is formed in the side surface of the settling section cylinder; the washing section comprises one or more sections and is provided with a washing solvent inlet and a filtrate outlet; the stirring shaft is a hollow shaft, a bottom-inserted discharging pipe is arranged in the stirring shaft, a helical ribbon with a hollow structure is mounted on the stirring shaft, and inner cavities of the stirring shaft and the helical ribbon are communicated; the cylinder wall of the three-part cylinder is of a single-layer steel plate or double-layer jacket structure, the inner wall of the double-layer jacket structure is a composite plate of a three-layer structure formed by clamping a layer of metal sintering filter screen between two layers of pore plates, and a filtrate discharge port is formed in the lower part of the outer wall of the settling section cylinder; the shaft wall of the stirring shaft and the helical ribbon can be completely or partially made of composite plates; filtrate is filtered, enters a barrel jacket or a stirring shaft and an inner cavity of a helical ribbon and is discharged; and the slurry slag is discharged by the discharge valve. The slurry separation device is suitable for separation of slurry with solids, and continuous large-scale production can be realized.

The present invention mentions a dust removal and desulfurization device for flue gas from coal-fired boilers, which is mainly aimed at the technical field of flue gas treatment devices. A dust removal and desulfurization device for flue gas from coal-fired boilers, comprising a support frame, the support frame is fixedly connected to a desulfurization tower, the top of the desulfurization tower is provided with an air outlet, the bottom of the desulfurization tower is provided with a discharge port, the outer side of the desulfurization tower is fixedly connected to an annular shell, the desulfurization tower is provided with a rectangular through hole connected to the annular shell, the annular shell is connected with an air inlet, a water distributor for spraying alkali liquid is provided in the desulfurization tower, the annular shell is rotatably connected to a rotating sleeve rotatably connected to the outer side of the desulfurization tower, and the rotating sleeve is fixedly connected to an annular net located in the annular shell. The present invention intercepts and filters impurity particles in the flue gas by a rotating annular net, thereby preventing impurity particles from entering the desulfurization tower and affecting the reaction between the flue gas and the alkali liquid therein.