48results about How to "Reduce dehydration" patented technology

The utility model discloses a screen drum cleaning mechanism which comprises an inclined paper machine, a rotating screen drum can drive a rotating assembly to drive a scraper blade to drive a cavity to rotate to be communicated with a filter hole in the inner top face of the screen drum, the section of the cavity is in a horn shape, a three-way pipe is fixedly connected with the scraper blade, and the input end of the three-way pipe is fixedly connected with a filter screen. A plurality of balls are arranged in a vertical pipe of the three-way pipe and can be attached to the surface of the filter screen, a baffle is arranged on the bottom face of the scraper in an attached and sliding mode, a connecting rod is fixedly connected to the top face of the baffle, the top end of the connecting rod is fixedly connected with the bottom face of the clamping hook, and a plurality of cavities are annularly formed in the surface of the scraper and can be communicated with filter holes in the inner top face of the screen drum. When the electric telescopic rod drives the cavity in the scraping plate to slide through the rotating assembly, the air suction assembly works to suck out paper pulp in filtering holes in the inner top face of the screen drum communicated with the cavity, cleaning of the filtering holes in the surface of the screen drum is achieved, the paper pulp dewatering effect is improved, and the paper pulp dewatering frequency is reduced.

The invention discloses a sludge conditioner with a nanoscale hydrophobic material loaded with a multi-core metal chelate, which is characterized by comprising the following components in percentage by weight: 10 to 20 percent of hydrophobic material, 30 to 35 percent of chelated iron solution, 10 to 15 percent of multi-core metal salt, 5 to 10 percent of dispersing agent, 2 to 5 percent of pH (Potential of Hydrogen) regulator and the balance of deionized water. The sludge conditioner can destroy EPS of a sludge system, dissolve microbial cells in the sludge, release bound water in the sludge and reduce electrostatic repulsion, so that the hydrophobicity of the microbial cells in the sludge is improved, free water and surface water are released, and the dehydration performance of the sludge is greatly improved.

The invention provides a synthesis method for synthesizing DL-homocysteine thiolactone hydrochloride through microwave catalysis. The synthesis method comprises a preparation method of DL-homocysteine, and the preparation method of the DL-homocysteine comprises the following steps: mixing DL-methionine, water and a solid acid catalyst to obtain a mixed material, and reacting in a microwave catalysis microtube reactor at 85-95 DEG C for 20 minutes to 1 hour; the microwave power in the microwave catalysis microtube reactor is 2 KW, and the wave frequency is 915 Mhz to 2450 Mhz. According to the synthesis method provided by the invention, the DL-homocysteine is synthesized by using specific microwave catalysis, and a specific solid superacid catalyst is preferably combined and used, so that the yield of the homocysteine synthesized by using the DL-methionine without using substances such as hydrofluoric acid and sulfuric acid is improved, the reaction temperature is reduced, the reaction time is shortened, and the yield of the homocysteine is improved. Impurities generated in the reaction process and the carbonization phenomenon are reduced.

The present invention belongs to the field of microorganisms, and specifically discloses a strain of Sphingobacterium shellycum and its application. The Sphingobacterium shellycum (Sphingobacteriumputeale) strain TYQ6 was deposited in the General Microbiology Center of China Microorganism Culture Collection Administration on April 27, 2023, with a deposit number of CGMCC.27215. The applicant found through experiments that the above-mentioned Sphingobacterium shellycum can secrete auxin, which can promote the growth of cucumber seedlings. It also has the ability to enhance the cucumber seedlings' ability to resist drought, interfere with the tropism migration of nematodes, and kill nematodes; therefore, the above-mentioned Sphingobacterium shellycum has broad application prospects in agricultural production.

The invention relates to a tea leaf wrapping-twisting beater. According to the technical scheme, the device comprises a cylinder, a mounting base capable of rotating in a reciprocating mode is coaxially arranged in the cylinder, an electric telescopic rod is coaxially fixed to the lower portion of the mounting base, a first disc-shaped grid is fixed to the upper end of the electric telescopic rod, and second disc-shaped grids are arranged above the first grid at intervals; a first disc-shaped grating is arranged above the first disc-shaped grating at intervals, a second disc-shaped grating is arranged above the second disc-shaped grating at intervals, a third disc-shaped grating is arranged above the second disc-shaped grating at intervals, the first disc-shaped grating, the second disc-shaped grating and the third disc-shaped grating are fixed into a whole through connecting rods, a plurality of rotating shafts with the inner ends inclining downwards are evenly distributed on the inner circumference of a cylinder, the rotating shafts can rotate in a reciprocating mode, and the rotating directions of every two adjacent rotating shafts are opposite. A corrugated plate is arranged above each rotating shaft in the length direction of the rotating shaft. Two groups of scattering devices are designed for scattering tea balls, materials of the whole scattering devices are fed from the upper sections and discharged from the lower ends, and the materials are gradually scattered by the aid of gravity of the materials in the whole process in cooperation with the two groups of scattering units.

The utility model relates to the technical field of river sand cleaning, dewatering and recycling, in particular to a river sand cleaning, dewatering and recycling device which comprises a dewatering tank and a bottom plate, a conical sand stacking plate is fixedly connected to the interior of the dewatering tank, and a conveying cylinder communicated with a through hole is fixedly connected to the lower end face of the sand stacking plate. A rotating shaft located in the conveying cylinder is rotationally connected between the upper end of the interior of the dewatering tank and the upper end face of the bottom plate, a spiral conveying blade is fixedly connected to the outer wall of the rotating shaft, cleaned sand and water are continuously injected into the dewatering tank together through a sand inlet pipe, and then a motor is matched with the rotating shaft to drive the spiral conveying blade to rotate; the cleaned sand is conveyed to the sand stacking plate, meanwhile, the water level in the dewatering tank slowly rises and then is discharged through the drainage pipe, and the sand can sink on the bottom plate and cannot float through the physical characteristics of the sand, so that the cleaned sand cannot be discharged along with water flow; and therefore, the cleaned sand is dewatered under the condition of reducing the loss of the fine sand.

The system comprises an A2O tank, a secondary sedimentation tank, a sludge pump tank, a bacteria culture tank and a sludge storage tank, an outlet of the A2O tank is connected with the secondary sedimentation tank, an outlet of the secondary sedimentation tank is connected with the sludge pump tank, one outlet of the sludge pump tank is connected with the sludge storage tank, the other outlet of the sludge pump tank is divided into two pipelines, and the two pipelines are communicated with the bacteria culture tank. One pipeline is in reflux connection with the anaerobic zone of the A2O tank, the other pipeline is connected with the bacterium culture tank, and the outlet of the bacterium culture tank is connected with the aerobic zone of the A2O tank. According to the invention, through optimization and improvement of the A2O biochemical process system, the sludge is treated by the biological enhancement reactor, on the premise of keeping the biochemical treatment effect of the sludge unchanged, the generation of residual sludge is reduced from the source, and the subsequent sludge dewatering, transportation and terminal treatment costs are greatly reduced.

The invention provides an AGM partition plate for a lead-acid storage battery and a treatment method, the AGM partition plate has a length direction, a width direction and a height direction, the AGM partition plate is used for coating a positive plate, the positive plate comprises a grid, the grid comprises a wide surface and a narrow surface, the wide surface is composed of ribs, and the narrow surface is composed of ribs. The AGM partition plate forms front and rear pores penetrating through the front surface and the rear surface, the front and rear pores are oxygen composite channels when the lead-acid storage battery is charged, the front and rear pores are provided with inner surfaces, the center lines of the front and rear pores are perpendicular to the wide surface, the front and rear pores comprise first pores and second pores, the center lines of the first pores do not penetrate through the ribs after extending, and the center lines of the second pores do not penetrate through the ribs after extending. The center line of the second hole extends and then penetrates through the rib, hydrophobic materials used for enhancing hydrophobicity of the front hole and the rear hole are formed on the inner surfaces of the front hole and the rear hole, and the size of the first hole is larger than that of the second hole.

The invention relates to the technical field of batteries, in particular to a safety type less-maintenance flooded battery which comprises a battery body, a battery cover and a battery cover, and the battery body is provided with a communication channel capable of releasing oxyhydrogen; and the reaction bin covers the battery body and forms a sealed space communicated with the communication channel, and a catalysis part capable of catalyzing a hydrogen-oxygen gas composite reaction is arranged in the reaction bin. The sealed space formed by the battery body and the reaction bin is matched with the precise positioning design of the catalytic part, so that the utilization rate of oxyhydrogen gas is greatly improved, water vapor generated by an oxyhydrogen composite reaction flows back to an original single-cell battery along a directional path after being condensed, a liquid supplementing closed loop of electrolysis-composite-backflow is formed, water loss of the battery is reduced, and the service life of the battery is prolonged. And the water replenishing maintenance frequency is reduced, the trouble of frequent maintenance is eliminated, and the maintenance cost and workload of a user are reduced.

This invention provides a fermented milk with stable quality, a method for manufacturing the same, and a dephosphorylated milk. One fermented milk contains more than 0.8 g / 100 g of dephosphorylated casein.

The present invention belongs to the field of transformer drying equipment, and specifically is an external force auxiliary support device for transformer drying, comprising a fixed base and an adjusting column installed on the upper end of the fixed base, the fixed base and the adjusting column are threadedly connected, the upper end of the adjusting column is connected to a support plate through a bearing, an adjusting hole is opened on the surface of the adjusting column, the lower end of the fixed base is connected to the support base through a buffer structure, a rotating rod is arranged inside the adjusting hole, the adjusting hole and the rotating rod are detachably connected, and a limiting structure is arranged on the surface of the fixed base; the adjusting column is moved upward by rotating the rotating rod, so that the supporting plate at the end of the adjusting column contacts with the bottom of the coil, thereby supporting the coil, and then the supporting plate is limited by the limiting structure, so that when the transformer is dried, the influence of dehydration and deadweight on the transformer is reduced, which is beneficial to the drying of the transformer.

The utility model discloses a kitchen waste renewable resource treatment device which comprises a dewatering device and a supporting and fixing device, the dewatering device is arranged on the supporting and fixing device, and the dewatering device comprises a protective drainage cover, a feeding end, a discharging bin, a dry material discharging box pipe, a transmission shaft, a spiral blade, a centrifugal pipe and a discharging outlet. The feeding end is fixedly installed at one end of the protective drainage cover, the discharging bin is fixedly connected to the top end of the feeding end, and the dry material discharging box pipe is fixedly installed at the end, away from the feeding end, of the protective drainage cover. According to the kitchen waste dewatering device, by adjusting the rotating speed of the first motor, the dewatering amount of kitchen waste can be flexibly adjusted, different treatment requirements are met, the kitchen waste attached to the inner wall of the centrifugal pipe can be continuously pushed to the dry material discharging box pipe through the spiral blades, the continuity of waste treatment is guaranteed, and the treatment efficiency is improved.

The invention relates to the technical field of salt-cavern gas storage drilling, in particular to a salt-resistant toughness self-repairing cement paste system for a salt-cavern gas storage and a preparation method of the salt-resistant toughness self-repairing cement paste system. The cement paste system comprises the following components in parts by mass: 65-90 parts of G-grade cement, 10-35 parts of a superfine active material, 4-10 parts of a toughening material, 3-10 parts of a cementing enhancer, 1-5 parts of a salt-resistant fluid loss agent, 0.5-3 parts of a low-temperature early strength agent, 0.1-0.5 part of a high-efficiency dispersant and 0.2-1 part of a defoaming agent, 0.5-5 parts of an expanding agent and 40-48 parts of a semi-saturated NaCl aqueous solution. The cement paste system not only has good salt resistance, elasticity and toughness, but also has the characteristics of micro-expansion, strong cementation, self-repairing and the like, so that the cement paste system is particularly suitable for the salt-cavern gas storage, the well cementation quality of the salt-cavern gas storage can be effectively improved, and the shaft integrity of the salt-cavern gas storage in a frequent strong injection and production period is guaranteed.

The present invention belongs to the technical field of oilfield chemistry, and specifically relates to a high-temperature tackifying multifunctional additive for oil well cement, and a preparation method and application thereof. The high-temperature tackifying multifunctional additive for oil well cement of the present invention is formed by copolymerization of the following monomers: 2-10 parts by weight of anionic monomer, 0.5-5 parts by weight of rigid monomer, 0.2-3.8 parts by weight of carboxylic acid monomer, 0.5-4.5 parts by weight of cationic monomer, 0.5-10 parts by weight of ether monomer, and 0.2-5.5 parts by weight of cross-linking monomer. The high-temperature tackifying multifunctional additive for oil well cement of the present invention has low viscosity, good fluidity, good compatibility, multiple functions, is beneficial to offshore cementing construction operations, and improves operating efficiency.

The present invention relates to a lead-acid battery negative electrode active material and a preparation method thereof, belonging to the technical field of battery negative electrode materials, including the following raw materials by mass: 95-105 parts of mixed lead powder, 0.1-0.5 parts of barium sulfate, 0.1-0.5 parts of lignin, 0.05-0.15 parts of carbon black, 0.05-0.15 parts of molybdenum disulfide and 10-30 parts of paste liquid; its preparation method comprises the following steps: adding mixed lead powder, barium sulfate, lignin, carbon black and molybdenum disulfide to the paste liquid in sequence and stirring evenly to obtain a paste; placing the paste on a grid for curing to obtain a cured plate; electrolytically oxidizing the cured plate and reducing it in a sulfuric acid solution to form a lead-acid battery negative electrode active material. By introducing molybdenum disulfide into the lead-acid battery negative electrode active material, the discharge capacity and cycle life of the lead-acid battery are greatly improved.

The invention discloses an activated sludge bypass reduction treatment system and method.The treatment system comprises a sewage biochemical reaction tank, a secondary sedimentation tank, a sludge tank, a sterilization wall-breaking reactor, a bypass recessive bacterium culture tank and a sludge concentration tank, a sewage outlet of the sewage biochemical reaction tank is communicated with a sewage inlet of the secondary sedimentation tank, and a sludge outlet of the secondary sedimentation tank is communicated with an inlet of the sludge tank; the sludge tank is provided with a sludge reflux pump and a residual sludge pump; an outlet of the sludge reflux pump is communicated with a water inlet end inlet of the sewage biochemical reaction tank; an outlet of the excess sludge pump is divided into two branches, one branch is communicated to the dewatering machine room, the other branch is connected to the bypass recessive bacterium culturing pool as a bypass pipeline, and an outlet of the bypass recessive bacterium culturing pool is communicated with an inlet of the sludge concentration pool. A carbon source reflux pump outlet of the sludge concentration tank is communicated with a water inlet end inlet of the sewage biochemical reaction tank; and the outlet of the bypass sludge reflux pump is communicated with the aerobic section of the sewage biochemical reaction tank. According to the application, the sludge in-situ reduction is realized in the system operation while the existing system operation process is not changed.

According to the microbial agent, the preparation method thereof and the bio-fertilizer prepared from the microbial agent, the microbial agent is produced through the processes of fermentation, centrifugation, dissolving and mixing, spray drying and the like, the loss of viable bacteria in the process from fermentation completion to dry powder preparation is reduced, and the yield of the microbial agent is improved. The performance of the microbial agent is improved. According to the bio-fertilizer, the microbial agent is used as a core raw material, humic acid, seaweed extract and biochar are used as auxiliary materials, the biocontrol and growth promoting functions of the microbial agent and the soil improvement and growth promoting functions of the base material can be mutually enhanced, the environment which is not beneficial to crop growth such as salt and alkali can be effectively resisted, and the yield of crops is increased.

The invention discloses an energy brick for energy supplementation in the lactation period of sows, and belongs to the technical field of energy supplements. The energy brick comprises the following components: grease, carbohydrate, a protein raw material, amino acid, an element supplement, vitamins and an additive. The energy brick for supplementing energy in the lactation period of the sows does not contain antibiotics and chemical synthetic drugs, does not cause adverse effects on growth of the sows, and does not indirectly affect human health; the energy brick for supplementing energy in the lactation period of the sows is formed in a brick form, so that the energy brick is convenient to store and transport, the sows mainly eat food in a licking mode, the feeding speed of the sows can be slowed down, the feeding frequency is reduced, and meanwhile, continuous supply of energy can be effectively guaranteed.

The present invention provides an AGM separator for a lead-acid battery and a processing method, wherein the AGM separator for a lead-acid battery is involved. The AGM separator has a length direction, a width direction and a height direction. The AGM separator is used to cover a positive plate. The positive plate includes a grid. The grid includes a wide surface and a narrow surface. The wide surface is composed of ribs. The AGM separator forms front and rear pores that penetrate the front surface and the rear surface. The front and rear pores are oxygen recombination channels when the lead-acid battery is charged. The front and rear pores have inner surfaces. The center lines of the front and rear pores are perpendicular to the wide surface. The front and rear pores include a first pore and a second pore. The center line of the first pore does not pass through the rib after extension, and the center line of the second pore passes through the rib after extension. A hydrophobic material for enhancing the hydrophobicity of the front and rear pores is formed on the inner surfaces of the front and rear pores. The volume of the first pore is greater than the volume of the second pore.

The invention discloses a sludge concentration and dehydration device which comprises a mixer, an inlet of the mixer is connected with a sewage inlet pipe, a liquid outlet of the mixer is communicated with an inlet of a stirring box through a pipeline, an outlet of the stirring box is communicated with a concentration box through a liquid outlet pipe, a concentration mechanism is arranged in the concentration box, and a concentration box discharge port is formed in the side wall of the concentration box. A material guide cover is arranged on the side face of the concentration box, a discharging port of the material guide cover is communicated with the dehydration box, and a pressing plate is arranged on the upper portion of a sludge outlet in the dehydration box. According to the sludge dewatering device, sewage and medicines are primarily flocculated through the mixer, then a mixed solution is guided into the stirring box for secondary flocculation, so that the flocculation effect of sludge is enhanced, dewatering is facilitated, then the sludge passes through the concentration mechanism, the concentrated sludge enters the dewatering box, the low-concentration sludge is concentrated, the solid content of the sludge is increased, and the sludge dewatering effect is improved. The water content of the sludge is reduced again through the dewatering box, and the device is suitable for dewatering the high-flow low-concentration sludge.

This invention discloses a method for transporting ore slurry between deep-sea mining vessels, relating to the field of marine engineering technology. The method employs a continuous process of slurry preparation, pipe laying, pumping, dewatering, and rinsing. On the mining mother ship, ore is crushed and mixed with seawater and dispersant to create a high-solids-content slurry, which is then stabilized by stirring in a storage tank. A transport channel is established between the mother ship and the transport ship via floating hoses, and the slurry is pumped using a slurry pump. After receiving the slurry, the transport ship performs solid-liquid separation using screening, centrifugation, or filter press devices. Sludge is stored in a hold, and tailwater is treated to meet standards before being discharged into the sea. After the operation is completed, the entire transport path is rinsed online with clean water, the hoses are recovered, and the equipment is reset. This invention achieves continuous and stable marine transport of ore slurry, improves operational efficiency, reduces marine ecological risks, has strong engineering adaptability, and is suitable for ore transport operations between deep-sea mining vessels.

The invention provides an ultrasonic coupling agent as well as a preparation method and application thereof, and belongs to the technical field of medical materials. The invention aims to provide the ultrasonic coupling agent which is not easy to lose water in the use process and has excellent safety. The ultrasonic coupling agent provided by the invention can help ultrasonic waves penetrate through an object and form an image, and meanwhile, air between a probe and the detected object is eliminated, so that the ultrasonic waves can effectively penetrate through the object and the detection purpose is achieved; and the definition and accuracy of the image can be improved by improving the ultrasonic coupling effect between the probe and the patient. The ultrasonic coupling agent prepared by the preparation method has a multi-network structure, the water loss condition can be remarkably reduced, the influence on the accuracy in the long-time ultrasonic detection process is avoided, and meanwhile, the workload of doctors and the use amount of materials are reduced.

The invention belongs to the technical field of building materials, and particularly relates to a preparation method of a filter-press mud cake as a flow-state filling material. The method comprises the following steps: adding basalt fibers into gamma-aminopropyltriethoxysilane to obtain basalt fibers subjected to surface treatment, and stirring and mixing the basalt fibers subjected to surface treatment with a modified siliceous material to obtain a fiber reinforced material; stirring 70-80 parts of the filter pressing mud cake, 3-6 parts of a curing agent and 3-5 parts of a fiber reinforced material, then adding 2-4 parts of an early strength agent, 8-12 parts of recycled fine aggregate and 0.1-0.2 part of an air entraining agent, and stirring to obtain the flow state filling material. The material obtained in the invention has good mechanical properties, durability and contractibility.

The present invention relates to a pollen distribution device (2, 102) for crop plants in an agricultural field (4, 104), the device (2, 102) comprising a carrier structure (6, 106) configured to move in a movement direction (10, 110) along a row of crop plants (8, 108) of the agricultural field (4, 104), and a blowing device (12, 112) attached to the carrier structure (6, 106) wherein the blowing device (12, 112) comprises at least one nozzle arrangement (14, 114), the nozzle arrangement (14, 114) being configured to spray pollen on the crop plants (8, 108) of the agricultural field (4, 104). The at least one nozzle arrangement is configured to blow air to pollen-bearing plants (16, 116) of an agricultural field (4, 104). According to the invention, it is proposed that the nozzle arrangement (14, 114) comprises vaporizing means (18, 118) for increasing the humidity in the air exiting the nozzle arrangement (14, 114), in particular wherein the vaporizing means (18, 118) are configured to increase the relative humidity of the air exiting the nozzle arrangement (14, 114) to between 60% and 80% by atomizing water particles, therefore, high relative humidity suitable for pollen viability preservation is ensured.

The invention discloses high-crack-resistance bridge expansion joint anchoring area concrete as well as a preparation method and application thereof. The method comprises the following steps: weighing the following raw materials in parts by weight: 650 to 660 parts of cement, 200 to 210 parts of fly ash, 100 to 110 parts of slag powder, 100 to 110 parts of a high-activity internal curing agent, 500 to 550 parts of sand, 500 to 550 parts of stone, 18 to 20 parts of rubber powder, 50 to 60 parts of modified rubber particles, 1 to 1.2 parts of a water reducing agent, 60 to 70 parts of steel fibers, 8 to 9 parts of modified PAN fibers and 230 to 240 parts of water; cement, fly ash, slag powder, a high-activity internal curing agent, sand, stone, rubber powder, modified rubber particles, a water reducing agent and water are mixed and stirred, and a concrete mixture is obtained; and adding the steel fibers and the modified PAN fibers into the concrete mixture, and continuously stirring uniformly to obtain the high-crack-resistance bridge expansion joint anchoring area concrete. The diatomite-rice hull ash after high-temperature calcination is adopted as the high-activity internal curing agent, the modified rubber particles and the modified PAN fibers of the concrete, so that the problems that the concrete in the anchoring area of the expansion joint is easy to crack and damage, poor in durability and the like are well solved.

The present invention relates to the field of lead-acid batteries, and in particular to a narrow labyrinth structure of a battery that can prevent tipping and acid leakage. The narrow labyrinth structure is used between the middle cover and the upper cover of the battery, and includes a labyrinth surface, an exhaust passage, and an exhaust chamber. The labyrinth surface is arranged on the middle cover, the labyrinth surface is an inclined surface, the end of the labyrinth surface facing the acid return port is the lower end, the exhaust passage is located at the end of the labyrinth surface away from the acid return port, the exhaust passage is connected to the exhaust chamber, and a ventilation gap is provided at the position of the upper cover corresponding to the exhaust passage, and the bottom surface height of the exhaust chamber is higher than the bottom surface height of the exhaust passage. It also relates to a battery that can prevent tipping and acid leakage. The exhaust chamber of the present invention is independently arranged relative to the labyrinth surface, avoiding the problems of direct discharge of acid mist and leakage of acid liquid after the battery tipping over, thereby making the use of the battery safer and more reliable, and at the same time making the battery less likely to lose water. With the continuous use of the battery, the battery is better kept with a rich electrolyte, thereby improving the service life of the battery.

This invention discloses a PpMED25 gene that regulates the synthesis of wax in peach fruit epidermis and its application, characterized by: PpMED25 The nucleotide sequence of the gene is shown in SEQ ID NO.1. PpMED25 The amino acid sequence of the encoded protein is shown in SEQ ID No:2, and the above-mentioned... PpMED25 The application of genes in regulating the synthesis of waxy substances in peach fruit epidermis, through overexpression of genes in peach fruit epidermis. PpMED25 The gene causes it to synthesize an increased amount of wax on the peach fruit peel. PpMED25 Methods of gene expression include constructing the peach fruit PpMED25 The method of overexpressing the gene, transforming the overexpression vector into Agrobacterium, and then infecting peach peel also provides the application of the above gene in regulating the synthesis of wax in tomato fruit peel; the advantages are that it increases the content of triterpenoids and alcohols in the peel wax of the fruit, significantly delays fruit water loss, and reduces permeability.

This invention discloses a low-temperature sludge drying device and its application. The device includes a processing chamber, a heating assembly located on one side of the processing chamber, and several staggered sludge conveyor belts inside the processing chamber. Air channels are formed between two sludge conveyor belts. Several semi-circular air guide hoods are located on the side wall of the processing chamber, with openings at both ends corresponding to two adjacent air channels. A drying module is located at the bottom air inlet of the air guide hood. This invention utilizes the circulating airflow formed by the staggered conveyor belts and air guide hoods to achieve uniform low-temperature drying of sludge. The drying module further removes moisture, allowing sludge of different types and moisture contents to be processed to a moisture content of 30-40%, meeting the requirements for direct aerobic fermentation while maintaining the activity of microorganisms in the sludge. Compared with traditional condensation drying methods, this device has a simplified structure, low operating energy consumption, and is suitable for continuous industrial operation.

The invention relates to a filtrate reducer for water-based drilling fluid as well as a preparation method and application of the filtrate reducer. The filtrate reducer is formed by polymerizing N, N-diethyl acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, dimethyl diallyl ammonium chloride, N-vinyl caprolactam and allyl alcohol polyoxyethylene ether, can effectively reduce water loss in fresh water drilling fluid, saline water drilling fluid and saturated saline water drilling fluid, and has small influence on rheological properties of the drilling fluid; and the drilling fluid can resist 2% of divalent salt in a drilling fluid basic system, is particularly suitable for high-temperature deep wells and ultra-deep wells, and can meet the requirements of the drilling fluid for the high-temperature deep wells and ultra-deep wells.

The invention discloses a lactobacillus paracasei CCFM1503 capable of inhibiting skin ceramide decomposition and relieving skin inflammation and a metagen thereof, and belongs to the technical field of microorganisms and medicines. The lactobacillus paracasei CCFM1503 provided by the invention can be used for effectively increasing the content of ceramide secreted by keratinocytes and effectively promoting the vitality of the keratinocytes in external application. The composition can inhibit the expression of ceramide decomposition related enzymes and relieve skin inflammation during oral administration, specifically, the expression of SMS and ASAH1 enzymes is inhibited, so that the abnormal decomposition of ceramide is inhibited; the compound can inhibit the expression of related proinflammatory factors (IL-1, IL-4 and TSLP), reduce the skin inflammation reaction caused by abnormal decomposition of skin ceramide and repair skin injury, has a certain application prospect in treatment of skin inflammation and injury caused by abnormal decomposition of ceramide, and is used for preparing external or oral medicines.