25results about How to "Improve dehydration rate" patented technology

The utility model discloses a squeezing structure of a pulp washer. The squeezing structure comprises a machine shell, a pulp inlet assembly and a squeezing assembly. Two pulp inlet cavities and two squeezing cavities are formed in the machine shell; each slurry inlet cavity is internally provided with one slurry inlet assembly; the slurry inlet assembly is rotatably arranged in the slurry inlet cavity, and a slurry inlet channel is formed between the slurry inlet assembly and the inner wall of the slurry inlet cavity; the squeezing assembly comprises two compression rollers, the compression rollers are rotatably arranged in the corresponding soybean milk inlet cavities, and squeezing channels are formed by the compression rollers and the inner walls of the soybean milk inlet cavities; the pulp inlet channel is communicated with the squeezing channel, and the width of the pressing roller is gradually reduced in the rotating direction of the squeezing assembly. The pulp squeezing device can improve the pulp squeezing efficiency and the pulp cleaning rate.

This invention discloses a composite dewatering agent for sludge dewatering in wastewater treatment and its preparation method, belonging to the field of sludge treatment technology. The composite dewatering agent comprises, by weight, the following raw materials: 30-50 parts chitosan-acetylcysteine-modified coal gangue, 20-40 parts cationic starch-modified fly ash fiber, and 1-3 parts nonionic surfactant. The composite dewatering agent of this invention, comprising chitosan-acetylcysteine-modified coal gangue, cationic starch-modified fly ash fiber, and nonionic surfactant, significantly improves the sludge dewatering rate through the synergistic effect of each component, utilizing multiple mechanisms such as charge neutralization, adsorption bridging, and the release of bound water through extracellular polymer destruction. This invention fully utilizes solid waste and natural materials in the preparation of the composite dewatering agent, achieving resource utilization of solid waste while avoiding residual pollution from traditional polyacrylamide flocculants and reducing environmental hazards.

The invention belongs to the technical field of resource utilization and environmental protection, and relates to a flue gas method brine purification and salt production by-product resource coupling utilization system and method, the system comprises: a first primary reaction tank, a second primary reaction tank, a second reaction tank, a third reaction tank, a fourth reaction tank, a fifth reaction tank and a high nitrate liquid tank. According to the raw brine (sodium sulfate content), the high-nitrate liquid and the quick lime are added, so that the refined brine index is realized, and the production is stable; second-stage salty mud of the second-stage reaction tank, and / or fourth-stage salty mud of the fourth-stage reaction tank, and / or fifth-stage salty mud of the fifth-stage reaction tank are recycled and added into the third-stage reaction tank, excessive flue gas is introduced, the flue gas preferentially reacts with the salty mud powder in the process, and conditions are provided for follow-up sedimentation acceleration; in addition, a lime-flue gas method and a two-alkali continuous method-double-membrane method can be realized to promote collaborative development.

This invention relates to a spatial multi-layer ultra-high pressure belt dewatering system and method, comprising a main frame, a feeding device, a feeding device, a filter belt, a filter belt traction machine, a filter press hydraulic press, a hydraulic station, and a controller. The feeding device, feeding device, filter belt traction machine, and filter press hydraulic press are connected and installed on the main frame; the output end of the feeding device is connected and installed above the feeding device. The dewatering method includes starting the equipment, feeding, filter press dewatering, and unloading. This invention offers higher dewatering efficiency and lower cost, making it a more effective organic waste dewatering device for reducing pollution and carbon emissions.

The invention discloses a porcelain insulator slurry filter pressing device and method based on dual pressure, and the device comprises a basic assembly which comprises a supporting frame, a pressing plate and a thrust plate which are respectively arranged at two sides in the supporting frame, and hydraulic telescopic equipment arranged on the supporting frame; a plurality of groups of filter plate mechanisms and a plurality of groups of filter frame mechanisms; wherein the filter plate mechanism comprises a bearing filter plate, movable pressing plates are movably embedded in the two sides of the bearing filter plate, and a driving part allowing a pressure medium to enter to drive the movable pressing plates to move is arranged in the bearing filter plate; the filter frame mechanism comprises a filter frame main body and filter cloth arranged in the filter frame main body, and two ends of the filter cloth are connected with a cleaning part arranged on the filter frame main body. The filter pressing process is divided into double pressurization modes, slurry is injected into the filter chamber through hydraulic pressure in the early stage, and when the slurry in the filter chamber has certain hardness, the water pressure secondary pressurization mode is adopted to accelerate discharge of water in the slurry, improve the filter pressing efficiency and effectively improve the dehydration rate of the slurry.

The application provides a cold extrusion forming device and process, comprising a female die, a male die and an extrusion driving part, the female die is matched with the male die, the extrusion driving part is in transmission connection with the male die and can drive the male die to move to the female die along a die closing direction to enter a die closing state, a die closing cavity for accommodating a wet embryo is formed between the male die and the female die in the die closing state; the die closing cavity comprises a bottom wall area and a side wall area which are in communication with each other, the side wall area is designed as a die closing gap gradual change structure to reduce the resistance of wet embryo slurry at the connection between the bottom wall area and the side wall area to extend and flow to the side wall area; the die closing pressure of the extrusion driving part driving the male die to move to the die closing state towards the female die is 3t-5t. In this way, the application designs the side wall area of the die closing cavity as a die closing gap gradual change structure, and uses a high die closing pressure of 3t-5t to cold extrude the wet embryo, so that the dehydration rate of the wet embryo in the cold extrusion process is improved, and the strength and yield of the workpiece are also improved.

The present invention relates to the technical field of brine purification systems, and in particular to a flue gas method low-nitrate high-magnesium-calcium brine purification system, comprising a primary brine preparation device and a refined brine preparation device which are interconnected; the primary brine preparation device comprises a first heat exchanger, a first preparation unit for preparing a primary degradation aid and a first reaction unit for preparing primary brine, the input end of the upper shell side of the first heat exchanger is connected to an external cooling medium, the output end of the upper shell side of the first heat exchanger is connected to the first preparation unit, and the input end of the upper tube side of the first heat exchanger is connected to raw brine. When in use, the primary brine is prepared by the primary brine preparation device, and then the primary brine is prepared by the refined brine preparation device, which solves the problems of high salt mud powder particle content and slow sedimentation; too long brine purification cycle; low clarity, easy "back mixing" during brine conversion, affecting the quality of liquid salt, etc.; it also solves the problem of frequent flushing of tubular filters.

The invention discloses a vibration dehydration device for quartz sand production, which comprises a drying dehydration mechanism and a dehydration bin, the top of the drying dehydration mechanism is provided with the dehydration bin, two sides of the bottom of the drying dehydration mechanism are provided with bases, the top of a group of bases is provided with a drying fan, and the top of the dehydration bin is provided with a feed inlet. A vibration dewatering mechanism is arranged in the dewatering bin, and a liquid receiving groove is formed in one end of the back face of the dewatering bin; according to the quartz sand dewatering equipment, the drying and dewatering mechanism is communicated with the dewatering bin in structure, so that the dewatering equipment adopts a vibrating dewatering structure of the vibrating dewatering mechanism and a drying structure of the drying and dewatering mechanism at the same time, and continuous conveyed quartz sand can be dewatered; the conveying of the quartz sand is promoted by utilizing the vibration groove and a continuous vibration structure of the material guide net plate and the material guide groove, so that the quartz sand is actively turned over in the conveying period, and the separation rate of water and liquid and the contact rate of dry airflow are improved.

The application discloses a tap water plant sludge dewatering and discharging device and belongs to the technical field of sludge treatment. The device comprises a lifting bottom plate, the upper surface of the lifting bottom plate is provided with a filtering mechanism, the filtering mechanism comprises a filtering assembly for playing a dewatering filtering role on sludge, a plugging assembly for driving the filtering assembly to rotate and playing a regulating role on the opening and closing state of the bottom opening end of the filtering assembly, and a pressurizing assembly for playing a compression role on the sludge in cooperation with the filtering assembly, the pressurizing assembly is arranged at the top of the filtering assembly, and the plugging assembly is arranged at the bottom of the filtering assembly. The filtering assembly comprises a second limiting support disc. Through the cooperation of multiple structures, centrifugal dewatering and extrusion dewatering are performed on the sludge. Through the cooperation of the two dewatering modes, rapid and sufficient dewatering of the sludge is realized, and the application can automatically and rapidly discharge the dewatered sludge.

This invention relates to a method for shelling camellia oleifera fruits. The method involves using a low-temperature airflow to treat the fruits, causing the fruit's hilum to crack at a distance of 2-10 mm. Mechanically assisted shelling is then performed, followed by sieving to obtain camellia oleifera seeds. The low-temperature airflow refers to an airflow with a temperature ≤50℃. This invention provides a novel approach to shelling camellia oleifera fruits, and the described process promotes shelling more gently and effectively.

The utility model provides a screw press machine special use in tail vegetable processing, including frame, press box, press cylinder, screw press bar, motor, the press box is installed on the frame, is provided with the filter chamber and the residue discharge chamber respectively from left to right in the press box, the press cylinder horizontal setting, press cylinder passes through the filter chamber right end and is connected with the filter chamber right side wall, right end and residue discharge chamber intercommunication, the screw press bar is installed in the press cylinder, and the end part rotation is connected in the press cylinder left end, and is connected with the motor drive of installing on the frame, the press cylinder top left side is connected with the hopper, the part side wall of press cylinder is evenly provided with a plurality of filter holes in the filter chamber, the residue discharge chamber right side inner wall is connected with the connecting rod, the utility model makes the pressure of screw press dry to tail vegetable gradually increase, and the front end carries out the fast transmission to tail vegetable, improves the conveying efficiency of tail vegetable, and the pressure gradually increases in the back section, improves the dehydration rate of tail vegetable, improves the press efficiency of tail vegetable.

The invention discloses a demulsification and emulsification analysis system and method based on ultrasonic action, and relates to the field of crude oil recovery. The ultrasonic action module is used for performing ultrasonic treatment on the emulsion sample according to set ultrasonic action data; the data processing module obtains observation information; the observation information comprises a cavitation noise signal in the test cavity and emulsion droplet change information of the emulsion sample in the ultrasonic treatment process; the controller determines an analysis result according to the observation information on the basis of set ultrasonic action data; the analysis result comprises cavitation intensity change information in the test cavity, demulsification and emulsification boundaries and ultrasonic emulsion demulsification mechanism information; the ultrasonic emulsion demulsification mechanism information is used for representing change rules of free radical types and content determined on the basis of cavitation dynamics and free radical reaction dynamics in the emulsion ultrasonic action process. According to the method, the demulsification and emulsification mechanism can be analyzed in the ultrasonic treatment process, so that the crude oil recovery efficiency is improved.

The present application discloses a demulsification and emulsification analysis system and method based on ultrasonic action, which relates to the field of crude oil recovery. The ultrasonic action module is used to perform ultrasonic treatment on the emulsion sample according to the set ultrasonic action data; the data processing module obtains observation information; the observation information includes the cavitation noise signal in the test chamber and the emulsion droplet change information of the emulsion sample during the ultrasonic treatment process; the controller determines the analysis result according to the observation information based on the set ultrasonic action data; the analysis result includes: the cavitation intensity change information in the test chamber, the demulsification and emulsification boundary and the ultrasonic emulsion demulsification mechanism information; the ultrasonic emulsion demulsification mechanism information is used to characterize the change law of the free radical type and content determined based on the cavitation dynamics and free radical reaction dynamics during the ultrasonic action on the emulsion. The present application can realize the analysis of the demulsification and emulsification mechanism during the ultrasonic treatment process to improve the crude oil recovery efficiency.

The invention discloses a process for graded utilization of high-water-content coal after drying and upgrading. High-water-content coal to be upgraded is dewatered and upgraded by adopting a steam drying and dewatering technology, and is further upgraded and graded through vibration grading drying, and an online detection system is adopted for real-time regulation and control in the process. Due to different dehydration effects of products with different granularities, different products are subjected to differentiation treatment after grading, and quality-improved products with different granularities can be reasonably utilized. According to the invention, the product subjected to steam drying and dewatering is quickly subjected to vibration classification dewatering, the purpose of loosening a material group is achieved in the process, and the contact area of the upgraded coal and air is increased, so that the upgraded coal still having waste heat can continue to perform secondary evaporation on residual moisture through preheating, and the overall dewatering rate of the upgraded coal is improved. According to the invention, the fine fraction product subjected to vibration classification drying is subjected to extrusion compression molding to obtain a briquette product, the unmolded pulverized coal is obtained through secondary screening, and the pulverized coal is continuously and repeatedly extruded, so that the utilization rate of the pulverized coal is improved.

A multi-medium filter-pressing dehydration device comprises an equipment frame and is characterized in that one end in the equipment frame is connected with a hydraulic device, and the other end of the equipment frame is connected with a component; a filter screen is connected between the hydraulic devices; a desliming structure is arranged between the filter screen and the hydraulic device; a feeding hole is formed between the filter screen and the hydraulic device; a water collecting tank is arranged below the filter screen; the front end of the filter screen is provided with a collecting port, to-be-dewatered sludge enters the filter screen cavity, the hydraulic device moves to pressurize for dewatering after the filter screen cavity is full, water is removed from the filter screen in the pressurizing process, and the removed water in the dewatering process is naturally and continuously discharged out of the filter screen and enters the water collecting tank. The dewatered sludge forms a mud cake. The hydraulic device retreats from movement, the desliming structure is opened, and the mud cake enters the collecting opening and is conveyed away by the conveying belt. Sludge with the moisture content being 98% is fed into sludge dewatering equipment through an actual operation test, the sludge is dewatered until the moisture content is 40%-50%, and the dewatering working condition is met.

The invention provides an energy-saving sludge dewatering and drying system and method, belongs to the field of sludge dewatering, and is used for sludge reduction. Water vapor in the drying machine is condensed into a liquid state through the condenser and then releases heat, the sludge before dehydration is heated, the viscosity of the heated sludge is reduced, the temperature is increased, the hydrophilicity of polysaccharide and protein components in the sludge is changed, and meanwhile, due to the fact that a conditioner is added into the sludge, the sludge can be recycled. The reaction efficiency of the conditioner and the sludge is improved through heating, the dehydration performance of the sludge is improved through the factors, the dehydration efficiency in the dehydration process is improved, and more water is removed from the sludge through dehydration. Therefore, in the subsequent drying process, water needing to be further removed through drying is reduced, the energy consumption in the drying process is reduced, and the systematic energy consumption of dehydration and drying is reduced.

The present invention relates to an ultra-ultra-high pressure sludge belt dewatering machine, which belongs to the technical field of sludge drying. The dewatering machine includes a frame, a plate and frame system, a filter press system and a conveying system. The frame is a frame structure. Both sides of the plate and frame system are connected to the frame through hydraulic devices. The filter press system is arranged in the plate and frame system, and a water receiving trough is arranged below. The filter plate group includes two filter rollers, a filter belt and a support frame. The two filter rollers are respectively fixed at the upper and lower ends of the plate and frame skeleton. The support frame is supported on the inner side of the filter belt. The two filter cloths of the conveying system pass through the filter press system and contact the filter belt. The ultra-ultra-high pressure sludge belt dewatering machine designed by the present invention adds a plate and frame system and a filter press system, performs ultra-ultra-high pressure filter pressing on the sludge in the filter belt, maximizes the sludge compression ratio, and improves the sludge dewatering rate.

The present application relates to the technical field of petroleum chemical industry, and particularly relates to a biochemical composite demulsifier, which comprises a microbial demulsifier and a chemical demulsifier, wherein the microbial demulsifier is prepared from a fermentation liquor of pseudomonas aeruginosa, and the chemical demulsifier is a mixture of trimethylolpropane polyether and epoxy polyether, and has the advantages of excellent demulsification effect and low cost.

The utility model discloses an isobutane raw material dehydrating and drying device, and belongs to the technical field of isobutane dehydration. The device comprises a dehydration tank, an air inlet, an air outlet, a first-stage filling layer, a second-stage filling layer, a third-stage filling layer and a drainage pipe, the air inlet is formed in the lower end of the dehydration tank, the air outlet is formed in the top end of the dehydration tank, and the first-stage filling layer, the second-stage filling layer and the third-stage filling layer are sequentially arranged in the dehydration tank from top to bottom; a heater is arranged at the lower end in the dehydration tank; through mutual cooperation of the heater, the pneumatic control valve, the PLC and the temperature sensor, the temperature in the dehydration tank and the flow speed of isobutane entering can be controlled, the dehydration rate of the isobutane is improved, and the dehydration quality is guaranteed; the sealing cover is arranged at the top end of the dehydration tank and can be detached from the top end of the dehydration tank, so that equipment in the dehydration tank can be conveniently cleaned and maintained, and the overall practicability is improved.

The invention discloses a dehydration method of high-viscosity collodion cotton, which is characterized by comprising the following steps: step 1, putting a collodion cotton material into a thickener, and the height of the liquid level of the cotton material is 45-55% of the height of a feeding groove of the thickener; 2, the collodion cotton material is heated to 56-60 DEG C at the heating rate of 1 DEG C / min; and step 3, conveying the heated collodion cotton material into a dehydration centrifugal machine for dehydration, reducing the liquid level of the cotton material to 50%, and heating the cotton material to a target temperature at a heating rate of 1 DEG C / min, so that the retention time of the cotton material in a thickener is shortened, the damage of viscosity at a relatively high temperature is slowed down, and the viscosity of the cotton material is reduced by utilizing the short-time high temperature of the cotton material. The problem of difficult dehydration and the damage of high temperature to viscosity are solved, and the viscosity index and the moisture index of the finished product are ensured to be qualified.

The utility model relates to the technical field of sludge dewatering machines, and discloses a deep dewatering type stacked spiral sludge dewatering machine which comprises an equipment base and further comprises an adjusting device, one side of the top of the equipment base is fixedly connected with an equipment main body, and the adjusting device is fixedly connected in one side of the equipment main body. A filtering device is fixedly connected to the interior of the equipment body, a stirring device is fixedly connected to the other side of the top of the equipment base, the adjusting device comprises a mounting plate, an electric telescopic rod is fixedly connected to the other side of the mounting plate, and a transfer rod is fixedly connected to the other side of the electric telescopic rod; the other side of the transfer rod is fixedly connected with a back pressure plate; according to the sludge dewatering device, the electric telescopic rod and the transfer rod are connected with the back pressure plate, the back pressure plate closes the sludge outlet at the beginning, the internal pressure between the spiral shaft and the back pressure plate is increased, sludge which is not sufficiently concentrated at the beginning is concentrated and dewatered, the dewatering effect of the sludge is favorably improved, and insufficient dewatering is prevented.

The utility model belongs to the technical field of menthol processing, and particularly relates to a menthol grading dehydration device which comprises a dehydration box body, a supporting ring plate is fixedly connected to the top end of the dehydration box body, a rotating ring plate is rotatably connected to the inner wall of the supporting ring plate, and a mounting plate is rotatably connected to the inner wall of the rotating ring plate. An exhaust assembly is fixedly connected to the mounting plate, and the supporting ring plate and the mounting plate are fixed through a frame rod; according to the menthol dehydration device, a rotating ring plate, a partition plate, a rotating plate, a storage box and an electromagnetic heater form an assembly capable of performing multi-stage heating on menthol, so that the content of water vapor in a dehydration cavity can be continuously reduced when the menthol is subjected to multi-stage dehydration in each cavity, and the content of water vapor in the dehydration cavity can be continuously reduced when the menthol is subjected to multi-stage dehydration. The amount of water vapor in each cavity can be continuously reduced, so that the menthol dehydration efficiency and dehydration rate are higher, and the menthol dehydration effect is facilitated.

This invention provides a dehydrator for processing vegetable waste with adjustable extrusion pressure, comprising a frame and a dehydration chamber. The dehydration chamber is mounted on the frame and is divided into a dehydration chamber and a slag discharge chamber by partitions on the left and right sides, respectively. A dehydration cylinder is horizontally installed in the dehydration chamber, and a spiral extrusion rod is installed in the dehydration cylinder. The right end outlet of the dehydration cylinder is connected to the slag discharge chamber. Filter holes are evenly arranged on the side wall of the dehydration cylinder. A feed hopper for placing vegetable waste into the dehydration cylinder is connected to the top left side of the dehydration cylinder. A square moving rod is horizontally slidably installed on the right side wall of the slag discharge chamber. A slot is opened at the left end of the square moving rod, and a rod is inserted into the slot. A strong spring is installed in the slot and elastically connected to the right end of the rod. An extrusion plate is fixedly connected to the left end of the rod. The extrusion plate is pressed against the right end of the dehydration cylinder under the elastic force of the strong spring. This invention allows for adjusting the extrusion pressure for different types of vegetable waste, thereby improving the dehydration rate and efficiency of vegetable waste dehydration.

This utility model discloses a solid-liquid separation device for alfalfa fermentation, including a support rod with a pressing assembly at the top. The pressing assembly includes a mounting frame with a material cylinder fixedly connected to its inner wall. A hydraulic rod is fixedly installed inside the top cover, and a pressure plate is fixedly connected to the movable end of the hydraulic rod. A funnel is rotatably connected to the inner walls of two auxiliary supports. One side of the reinforcing rib is fixedly connected to the movable end of the hydraulic rod. This utility model relates to the technical field of solid-liquid separation equipment. After a certain period of time, the servo motor is turned off to stop the funnel from rotating. Then, the hydraulic rod is restarted to drive the pressure plate down, thus pressing the material in the funnel to completely squeeze out any residual liquid and improve the dehydration rate. The liquid falls from the outlet of the conical hood onto the surface of the conical sleeve. Since the surface of the conical sleeve is curved, the liquid also slides into the annular collection box for collection.

The invention relates to the technical field of sludge treatment and resource utilization, in particular to a method for deep dehydration and resource comprehensive utilization of sludge with low water content. The method comprises the following steps: firstly, performing freeze thawing pretreatment on sludge to rupture sludge cells and separate out water in the cells; performing deep filter pressing on the frozen and thawed sludge, applying a direct-current electric field to the sludge for electroosmosis in the filter pressing process, and further separating mud and water in the sludge under the action of the direct-current electric field; in the deep filter pressing process of the sludge, the water absorption layer is additionally arranged between the two layers of filter cloth, so that floating water on the upper surface and the lower surface of the sludge layer can be removed, and the dewatering efficiency of the sludge is further improved; and the dehydrated sludge is subjected to drying granulation and pyrolysis gasification to obtain combustible gas, so that comprehensive utilization of the sludge is realized. The method is friendly to the human body and the environment, the sludge dewatering efficiency is high, reduction, harmlessness and recycling of the sludge are achieved, and the method has positive significance in environmental protection and resource reutilization.