418 results about "High water content" patented technology

The invention discloses a pneumatic sampling device and method for high-water-content muddy soft soil, and relates to the technical field of dredged sludge sampling devices.The pneumatic sampling device comprises a sampling cavity, a sampling opening is formed in the side wall of the sampling cavity, a flexible sampling container is arranged in the sampling cavity, and the opening end of the flexible sampling container faces the sampling opening; the valve plate is slidably connected to the outer side of the sampling opening; the gas transmission rod is fixed on the sampling cavity and is communicated with the interior of the sampling cavity; the gas path control mechanism is communicated with the interior of the sampling cavity through a gas transmission rod; the pneumatic driving part is arranged on the sampling cavity and is pneumatically connected with the gas path control mechanism, and the driving end of the pneumatic driving part is in transmission connection with the valve plate; wherein the pneumatic driving part can be driven by the gas path control mechanism to drive the valve plate to move to open or close the sampling port, and the gas pressure in the sampling cavity can be changed by the gas path control mechanism, so that the flexible sampling container expands to suck a soil sample, or the flexible sampling container contracts to discharge the soil sample.

The invention relates to high-water-content ABS powder extrusion dehydration equipment, and aims to solve the problem that in the prior art, the high-water-content ABS powder is dehydrated until the water content is 18 wt% or below, and meanwhile plasticizing is avoided, the high-water-content ABS powder extrusion dehydration equipment comprises an extrusion mechanism used for carrying out extrusion dehydration on the high-water-content ABS powder; the drainage mechanism is used for receiving water discharged by the extrusion mechanism and discharging the water out of the extrusion dehydration equipment; the feeding mechanism is used for feeding ABS powder with high water content into the extruding mechanism; wherein the extruding mechanism comprises a conveying section, an extruding section, a crushing section and a dispersing section; the drainage mechanism is connected with the extrusion section; and the feeding mechanism is connected with the conveying section. By means of the equipment, the water content of the ABS wet powder can be reduced to 18 wt% or below from 50 wt% or below, the dehydrated ABS wet powder is still kept in powder and cannot be plasticized, and the follow-up blending and dispersing processes are facilitated.

The invention relates to the technical field of iron slag powder processing, in particular to a drying device for iron slag powder processing, which comprises a drying machine, the drying machine comprises a continuously rotating drying roller, and a crushing unit, a material homogenizing unit and a high polishing unit are sequentially mounted in the drying roller from right to left; the drying roller is sequentially divided into a pretreatment area, a main drying area and a final drying area from right to left. The mode that the interior of the drying roller is divided into the pretreatment area, the main drying area and the final drying area is adopted, different treatments are conducted according to different stages of the water content of the iron slag powder, the crushing unit is arranged in the pretreatment area to conduct extrusion crushing treatment on the iron slag powder with the high water content, and the iron slag powder with the high water content is prevented from caking; a material uniformizing unit is arranged in the main drying area to prevent iron slag powder from being accumulated, and it is ensured that the raised iron slag powder can make full contact with hot air; a high-throwing unit is arranged in the final drying area, so that the lifting height of the iron slag powder is increased, and the contact time of the iron slag powder and hot air is prolonged.

The invention relates to the technical field of oil extraction and water reduction, in particular to an oil extraction and water reduction combined multi-source heating system which comprises an oil storage and water reduction separator, a liquid inlet is formed in one side of the top of the oil storage and water reduction separator, an exhaust port is formed in the middle of the top of the oil storage and water reduction separator, and a water outlet and an oil outlet are formed in one side of the bottom of the oil storage and water reduction separator. The oil storage and water reduction separator is used for receiving produced liquid with high water content in an oil well, removing a water phase and a gas phase through physical separation, outputting an intermediate oil phase with low water content to the heating furnace, and conveying the separated high-temperature water phase to the multi-source heat pump unit for heat recovery. Compared with the prior art, the oil storage and water reduction separator is arranged to be matched with the waste heat recovery multi-source heat exchange unit, most of water phases in produced liquid are rapidly removed, the follow-up treatment burden is relieved, the conveying efficiency is improved, multi-source cooperative energy supply is achieved, dependence on traditional fossil energy is reduced, and the energy utilization efficiency is improved; the environment-friendly property and the sustainability are good.

The invention relates to the technical field of geological punching, and particularly discloses geological punching equipment for mining, which comprises driving equipment capable of three-dimensionally adjusting, a mounting disc is fixedly mounted at the bottom end of the driving equipment, and a middle shaft is rotatably mounted in the mounting disc; and a rotating cylinder arranged outside the middle shaft in a sleeving mode is rotationally installed in a groove formed in the bottom end of the installation disc, a drill bit is fixedly installed at the end, extending out of the rotating cylinder, of the middle shaft, a spiral conveying groove is formed in the outer wall of the drill bit, and a soil inlet gap is formed between the rotating cylinder and the drill bit. According to the device, the soil inlet gap is formed between the drill bit and the rotating cylinder, so that muck generated during drilling of the drill bit enters the rotating cylinder, the muck is conveyed out of a blast hole along the rotating cylinder through the spiral piece, and the muck can be conveyed in a dry-type soil moving mode; and the phenomenon that the explosion performance or the explosion effect of explosives in the blast hole is affected by too high water content in the blast hole after slurry circulation is avoided.

According to the technical scheme, the cooling structure of the injection charging barrel is characterized in that the cooling structure comprises an injection charging barrel body, a pressing plate is arranged on the side face of the injection charging barrel body, a sleeve is connected into the injection charging barrel body in a sliding mode, a cavity is formed in the injection charging barrel body, two guide pipes are both communicated with the cavity, and the two guide pipes are communicated with the sleeve. The injection material barrel comprises an injection material barrel body 1 and a sleeve 3, feed ports are formed in the injection material body, sealing plugs are connected into the two feed ports in a sliding mode, cooling water can be added into the cavity through the two pressing pipes, the injection material barrel can have the good cooling effect through the cooling water in the cavity, cooling water heat preservation oil does not make direct contact with the injection material barrel body 1 and the sleeve 3, and the cooling water heat preservation oil does not make direct contact with the injection material barrel body 1 and the sleeve 3. According to the injection charging barrel, corrosion of the injection charging barrel body 1 or the sleeve 3 can be effectively prevented, corrosion and water leakage caused by long-time use are avoided, the problem of air holes caused by too high water content of a die casting can be effectively prevented, and the safety in the magnesium alloy die casting process can also be improved.

The water controlling and oil stabilizing device comprises a Tesla valve body fixedly arranged between an upper connector and a lower connector, a Tesla flow channel is formed in the outer wall of the Tesla valve body, and the outer wall of the Tesla valve body is sleeved with an outer barrel used for sealing the Tesla flow channel; the Tesla valve body is provided with a fluid through hole which is communicated with the upper end of the Tesla flow channel and a central flow channel of the Tesla valve body; a sand control pipe is fixedly arranged between the outer barrel and the lower connector, the lower end of the Tesla flow channel is communicated with an annular space among the outer barrel, the sand control pipe and the Tesla valve body, and a fluid channel communicated with the annular space and the outer space of the sand control pipe is arranged on the sand control pipe. By adopting the Tesla flow channel, the retarding effect of the Tesla flow channel on high water content is greater than that of low water content, so that the water content of a total product in an oil pipe is indirectly reduced, and low-cost control of the water content of the product is realized.

The utility model discloses a one-device double-row adjustable seedbed sliding knife T-shaped furrow opener, which relates to the technical field of crop seeding equipment, and adopts the technical scheme that the one-device double-row adjustable seedbed sliding knife T-shaped furrow opener comprises a compaction roller, an adjusting nut, a cross-shaped limiting pipe, a connecting rod, a limiting spring, a T-shaped limiting screw rod, a supporting square pipe, a supporting bottom plate and a furrow opening assembly. According to the utility model, ditching, seed throwing, soil returning, soil covering and pressing can be completed at a time, and two rows of seeds can be thrown at a time; the ditching assembly with the Y-shaped head is beneficial to sliding cutting ground breaking, and the power consumption of the seeder is reduced; the seeding line spacing and the seeding depth are adjustable, so that the consistency of the seeding depth is ensured, and the agricultural requirements of different seeds are met; when the device works under the condition of heavy and hardened soil with high water content, the operation effect is good; the parabola-shaped seeding pipe effectively improves the uniformity of plant spacing; when the forward speed of the seeder reaches a certain value, zero-speed seed charging can be realized; the device is simple in structure, convenient and fast to adjust, reliable in work, light in weight and convenient to hang on the combined seeder for use.

The present invention provides a plate and frame filter press, belonging to the technical field of plate and frame filter presses. It includes a filter press body; a driving assembly having a reciprocating displacement along the length direction of the filter press body; a scraper assembly slidably connected to the filter press body; the scraper assembly at least includes a scraper; the scraper has an angle a with the direction of gravity; the size of the angle a increases or decreases under the control of the weight b of the filter cake; the moving distance L of the previous plate and frame driven by the driving assembly increases or decreases under the control of the weight b of the filter cake. In the present invention, the angle of the scraper is adjusted according to the weight of the filter cake to ensure the smooth peeling of the filter cake. Especially, the filter cake with high water content and high weight can be scraped cleanly to avoid residue. By reducing unnecessary displacement distances, the friction between the guide rail and the plate and frame is reduced, and the wear of the equipment is decreased.

The present disclosure relates to the field of material drying, and provides a material drying method and system, and a readable storage medium, used to ensure the drying quality of a material. The material drying method comprises the following steps: in a preheating mode, closing a fresh air flow path and a moisture discharge flow path of a material drying device, and connecting a hot air flow path of the material drying device, so as to preheat a drum of the material drying device; when the temperatures of all regions of the preheated drum reach a set value, and incoming material is detected, adjusting the material drying device to a material head mode; when a continuous duration of the material head mode reaches T_Sb, or the highest water content of the dried material output in the material head mode is higher than a minimum water content A_min% of a set dried material, adjusting the material drying device to a production mode; and, after the production mode is finished, adjusting the material drying device to a material tail mode. The described technical solution reduces aroma loss of a product, and the dried material produced thereby has good sensory quality, good water content uniformity, and a high raw material utilization rate.

The invention relates to the field of C09D11, in particular to solvent type edible ink and a preparation method thereof. The solvent type edible ink is prepared from the following raw materials: food essence auxiliary materials, edible spice A, edible spice B and emulsified edible pigment, the emulsified food coloring is prepared from the following raw materials: food coloring, water, edible spices and food essence auxiliary materials. According to the present invention, the edible pigment is prepared into the emulsified edible pigment, and the edible pigment is emulsified into the water-insoluble emulsified edible pigment through the water-in-oil system, such that the solvent type edible ink has characteristics of high water content printing, good printing smoothness, high pattern stability and excellent actual use effect.

The invention relates to the technical field of sludge treatment, in particular to a drying device for co-processing sludge in a household garbage incineration plant. Comprising a machine body, a hopper is mounted at the upper end of the machine cover; a discharging opening is formed in the side wall of the machine body; the interior of the machine body is rotationally connected with a mounting column; according to the invention, the screw rod is arranged; the screw rod can drive the three mounting columns which are in spiral transmission connection with the screw rod to ascend, and as the screw pitch differences of the adjacent columns are equal, the relative displacement increment in unit time is constant, so that the distances among the three mounting columns are uniformly increased along with the ascending process, and the crushing effect of sludge with relatively high water content is improved; and when the water content of the sludge is low, the screw rod is controlled to drive the mounting columns to be close to each other, the distance between the drying discs is reduced, the sludge with the low water content is prevented from being excessively pulverized, and the drying efficiency and the drying effect of the sludge with different humidity are effectively improved.

The invention relates to a control method and device of snow melting equipment, the snow melting equipment and a storage medium, and the control method comprises the following steps: when the snow melting equipment is in a smoothie making mode, obtaining a first rotating speed of a stirrer; if the first rotating speed is smaller than the preset rotating speed, controlling the compressor to stop working, and meanwhile, controlling the stirrer to continuously run for first duration; acquiring a second rotating speed of the stirrer after the first duration; if the second rotating speed is smaller than the preset rotating speed, the stirrer is controlled to stop working, and meanwhile, a refrigerant reversing valve of the compressor is controlled to perform primary reversing to enter an ice melting mode. According to the technical scheme, the technical problems that when beverage smoothie with the high water content is made through traditional snow melting equipment, water in the beverage smoothie is prone to icing on the surface of the refrigeration cylinder, stirring of the stirrer is affected, smoothie making is affected, and the user experience is poor are effectively solved.

The utility model provides a high-water-content crude methanol refining device which comprises a pre-rectifying tower, a dehydration rectifying tower, a negative pressure rectifying tower, a first rectifying tower and a second rectifying tower, the top of the dehydration rectifying tower is connected with a dehydration tower reboiler through a dehydration tower gas phase extraction pipeline, and a compressor is arranged on the dehydration tower gas phase extraction pipeline; the output end of the dehydrating tower reboiler is connected with a dehydrating tower return tank, a dehydrating tower return tank extraction pipeline is arranged at the bottom of the dehydrating tower return tank and is respectively connected with a dehydrating tower return pipeline and a negative pressure tower feeding pipeline, and the dehydrating tower return pipeline is connected with the upper part of the dehydrating rectifying tower; the negative pressure tower feeding pipeline is connected with the negative pressure rectifying tower; according to the invention, high-water-content crude methanol can be refined, the precision of a final methanol product is ensured, the unit consumption of steam is less than or equal to 0.7 t steam / t refined methanol while the methanol product is greater than 99.99%, the steam consumption of the system is reduced, and multi-stage utilization of energy and heat coupling are realized.

The utility model discloses a single-shaft crusher, relates to the technical field of single-shaft crushers, and aims to solve the problems that a crushing chamber is blocked, the cutting efficiency is reduced and the power consumption is increased due to the fact that an existing crusher is easy to form bonding blocks in the impact crushing process of materials with higher water content. A charging barrel is fixedly mounted on the outer side of the upper portion of the base through screws, a main shaft is mounted in the base, a bearing seat is fixedly mounted on the upper portion of the base through screws, a fixed blade is fixedly mounted on the upper portion of the bearing seat through screws, and a movable blade is fixedly mounted on the outer portion of the upper end of the main shaft through screws. An adjusting pad is arranged between the base and the bearing seat, seven cutting edges are annularly arranged at the outer end of the fixed blade and the outer end of the movable blade respectively, the cutting edges are in a multi-arc shape, and the cutting edge directions of the cutting edges of the fixed blade and the cutting edges of the movable blade are opposite.

The invention discloses a method for testing modification performance of shopping mall site soil under high water content. The method comprises the following steps: step 1, preparing a soil sample; step 2, direct shear test; step 3, disintegration test; step 4, carrying out a scale test; 5, scanning an electron microscope; step 6, ABAQUS software modeling is carried out; step 7, analyzing an experimental result; methyl sodium silicate liquid is added to improve ruin soil for ruin repair, methyl sodium silicate reacts with carbon dioxide and water in air to generate a net-shaped organic silicon resin film, the surface of a soil body structure is wrapped with the net-shaped organic silicon resin film, the anti-capillary effect can be achieved, a hydrophobic layer with excellent performance is formed, and a product of the organic silicon resin film has micro-expansibility and can be used for repairing ruins. By means of the method, pores can be blocked, the compactness of a soil body is improved, the strength of the soil body is improved, the mechanical property and the water physical property of the ruin soil are effectively improved, a step progressive repairing method is adopted, the bottom layer is repaired firstly, then the upper layer is repaired, and finally the penetration depth of the material is deepened.

The invention relates to the technical field of mask base cloth, and discloses hydrogel type stably colored mask base cloth and a preparation method thereof. The mask base cloth prepared by the preparation method disclosed by the invention is prepared by taking lignin-based hydrogel short fibers and bamboo fibers as main raw materials, performing opening, mixing, carding and lapping to prepare a fiber net, and then performing pre-wetting, high-pressure spunlace, dehydration and drying processes on the fiber net. The mask base cloth not only has excellent liquid holdup and liquid retention rate, but also has excellent oxidation resistance, coloring stability and breaking strength, and the skin can have high water content after the mask base cloth is attached to the skin.

The invention relates to an exploitation optimization design method for a high-water-content small reservoir in high-porosity, high-permeability and strong-edge water, and belongs to the technical field of oilfield development. According to the injection-production scheme optimization design method for the strong-edge-water small oil reservoir, numerical simulation is utilized, on the basis of oil reservoir remaining oil distribution characteristic research, through numerical simulation optimization of water injection and polymer injection, the simulation result shows that by means of the injection-production scheme, the recovery efficiency can be effectively improved, the advancing speed of edge water can be restrained, the water-free oil production period of an oil well can be prolonged, and the oil recovery efficiency can be improved. And finally, the oil reservoir recovery efficiency is improved, and a basis and guidance are provided for potential tapping of the remaining oil of the high-porosity, high-permeability and strong-edge-water oil reservoir in the middle-high water content later stage. Wherein the polymer flooding has the effects of controlling the mobility ratio, adjusting the water absorption profile and the like. An injection-production scheme capable of improving the recovery efficiency is provided for the high-water-content small oil reservoir in the high-porosity high-permeability strong-edge water, and technical reference is provided for other oil reservoirs of the same type.

The invention belongs to the technical field of solid waste resource utilization and inorganic material synthesis, and relates to a method for reducing the water content and particle size of active calcium silicate. According to the method, powdery quicklime or ground carbide slag is used as a calcium source, the reaction activity of the calcium source is improved through steam activation, then the calcium source is added into desiliconization liquid containing sodium silicate in batches, a reaction is carried out under the temperature control and stirring conditions, and finally, hot water ultrasonic washing and drying are carried out, so that an active calcium silicate product with low water content and fine particle size is prepared. According to the process, the problems of high water content, large particle size, impurity residues and the like in the traditional process are effectively solved by accurately controlling the Ca / Si molar ratio, temperature sectional reaction and ultrasonic-assisted washing. According to the method, the post-treatment burden of the product is remarkably reduced, the whiteness and the purity are improved, high-value utilization of high-calcium solid wastes such as the carbide slag is also realized, and the method has good industrial popularization prospects and environmental benefits.

The utility model provides a nostoc sphaeroids kutz drying device which comprises a main machine body, a feeding port is formed in the top of the main machine body, supporting legs used for supporting the main machine body are installed at the four corners of the bottom of the main machine body, and a sealing door is installed on one side of the main machine body. According to the nostoc sphaeroids kutz drying device, materials are fed from the feeding port, then enter the material guide bin, fall onto the first material guide plate and slide towards the first infrared heating plate under the action of gravity, the first infrared heating plate conducts primary heating and drying, meanwhile, the servo motor operates and drives the transmission mechanism to operate, nostoc sphaeroids kutz on the lower layer is turned to the upper layer, and nostoc sphaeroids kutz is dried. Nostoc sphaeroids kutz on the lower layer is prevented from being heated unevenly, and a first fan, a second fan and a third fan on the two sides are matched for blowing air layer by layer, so that the nostoc sphaeroids kutz with the high water content can be dried through the equipment, nostoc sphaeroids kutz is heated more evenly, and the nostoc sphaeroids kutz drying effect and the discharging quality are further improved.

The utility model relates to the technical field of acrylic acid product production, and solves the problem that the quality of produced acrylic acid is not qualified due to high water content of the acrylic acid product after startup. In particular to an acrylic acid purification tower C230 overhaul dehydration system, which comprises: an acrylic acid production system, which is used for receiving the entry of an acrylic acid material and the output of an acrylic acid product, and comprises a C230 acrylic acid purification tower for receiving an acrylic acid feed, and the C230 acrylic acid purification tower establishes a conveying channel connected with a separation system through a communication channel; the dehydration system is used for providing a passage for conveying dehydration gas to the acrylic acid production system and comprises a gas supply passage connected with the conveying passage, a circulating fan is mounted on an extension track of the gas supply passage, and a circulating pipeline connected with the circulating fan is connected to the C230 acrylic acid purification tower; and the conveying channel comprises an E232A / B tower top primary condenser connected with the communicating channel.

The present invention discloses a sediment interception and treatment system in a plain river network area, which includes a sediment interception tank arranged at the river connection point and the estuary, a conveying pipeline arranged along the river, a pneumatic pump, a treatment device, an automatic control system, and an estuary wetland system. The automatic control system includes a data center, a communication module, and water quality sensors and mud level sensors arranged in the sediment interception tank. The water quality sensors and mud level sensors are connected to the pneumatic pump through the data center via the communication module. The outlet of the treatment device is connected to the estuary wetland system. The sediment interception tank is formed by excavating the bottom sediment of the water body, and a support is arranged in the tank to support the communication module, water quality sensors, and mud level sensors. The present invention utilizes the characteristics of fine sediment particles, high water content, and large fluidity in the plain river network area to achieve automatic and rapid collection, in-depth treatment, and resource utilization of sediment from the river network to the estuary area, reduce the sediment and nutrient load entering the lake, and reduce the risk of eutrophication.

The invention relates to the technical field of solid waste resource recycling, in particular to a curing agent for waste soil treatment and a preparation method and application thereof. The curing agent for waste soil treatment is prepared from the following raw materials in parts by weight: 30 to 40 parts of carboxyl-terminated hyperbranched polyester, 2 to 4 parts of calcium formate, 25 to 35 parts of polyacrylamide, 7 to 13 parts of hydroxypropyl methyl cellulose, 2 to 4 parts of calcium stearate, 8 to 12 parts of potassium carbonate, 2 to 6 parts of sodium hydroxide, 3 to 5 parts of organic silicon defoaming agent and 8 to 12 parts of organic bentonite. The method has the advantage that the solidification effect of the waste soil with high water content is improved.

The invention discloses and provides a process for efficiently preparing loose powder with high water content. The process can meet different types of loose powder products. The process comprises the following steps: (1) weighing a polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and methyl alkylated silica into a beaker, and mixing with a stirrer at the stirring speed of 400-600r / min; (2) slowly dripping deionized water into the rotating beaker by using a suction pipe, wherein the deionized water is completely added within 3-5 minutes; (3) after the deionized water is added, continuously stirring for 5 minutes to obtain a mixture A; (4) the mixture A is put into a vibrating screen for powder screening, and screened powder is put into a beaker; (5) continuously mixing the powder in the beaker with the stirrer for 5 minutes to obtain a mixture B, wherein the stirring speed of the stirrer is 400-600r / min; and (6) putting the mixture B into a vibrating screen, and screening to obtain the basic loose powder with high water content. The method is applied to the technical field of preparation of water-containing loose powder.

The utility model relates to the field of furfural production, and in particular to a dehydration device for furfural production. The dehydration device aims to solve the technical problem that the existing technology has a relatively single function and incomplete dehydration. A dehydration device for furfural production includes a drainage component, a water-throwing component, a control component, and a drying component. The utility model adopts a segmented treatment. First, the drainage component divides the furfural raw material into two parts, avoiding the agglomeration of the raw material and improving the drainage efficiency. The filter separates most of the water in the furfural raw material and slides into the water-throwing component along the slope. Then, the water-throwing component rotates at a high speed to quickly separate the furfural raw material from the residual water. Finally, the drying component repeatedly turns the furfural raw material and generates hot air to thoroughly dry and dehydrate the furfural raw material with a high water content. This design solves the problem that the traditional dehydration device has a single structure and is prone to incomplete dehydration, and greatly improves the dehydration efficiency and effect of the furfural raw material.

The utility model belongs to the technical field of constructional engineering, and particularly relates to a sand screening device with an adjusting structure, which comprises a sand screening machine body. The top of the sand screening machine body is fixedly connected with a storage hopper; a support is fixedly connected to the top of the sand screening machine body. The inner wall of the bracket is rotationally connected with a screw rod; the end part of the screw rod is in threaded connection with an adjusting plate, and the adjusting plate is arranged at the top of the sand screening machine body in a sliding manner; the other end of the screw rod is fixedly connected with a rotating handle; a motor is mounted on the side wall of the adjusting plate; a rotatable stirring block is arranged in the middle of the storage hopper in a matched mode, the problem that it is difficult for workers to dredge the storage hopper at the top of the sand screening machine body in the follow-up process due to the fact that the follow-up storage hopper is blocked by materials with the high water content can be solved, and under the action of a slidable adjusting plate, the flexibility of the whole stirring block during work can be improved; the problem that partial blind areas on the inner wall of the storage hopper are difficult to dredge by the adjusting plate is solved.

The invention discloses a stable high-water-content sludge roadbed filling construction device and method. According to the device, a movable frame serves as a carrier, a foam manufacturing and conveying device, a high-water-content sludge storage and conveying device and a cement mixing and conveying device are integrated, and foam, cement paste and sludge are supplied to a mixing tank of a vehicle-mounted stirring device through respective independent pipelines; the stirring device adopts a low-speed multi-blade impeller to carry out low-shear mixing so as to protect a foam structure, the mixture is uniformly sprayed on a roadbed by the spraying device, and then the mixture is leveled by the height-adjustable transverse slicking device. The method comprises the steps of device in-place, foam preparation, sludge and cement paste conveying, low-speed mixing, spraying, scraping and the like. Compared with the prior art, on-site integrated and continuous construction is achieved, the foam structure can be effectively protected, the material proportion and the construction rhythm can be accurately controlled, the construction efficiency, the engineering quality and the high-water-content sludge resource utilization rate are improved, and the energy-saving, environment-friendly and engineering popularization value is remarkable.

The utility model belongs to the technical field of fertilizer drying, and particularly relates to a granular water-soluble fertilizer drying machine which comprises a machine box, and a discharging opening is formed in one side of the machine box. An air heater is arranged at the top end of the case; a feeding opening is formed in the other side, corresponding to the hot air blower, of the discharging opening, and a connecting plate is fixedly connected to the interior of the feeding opening; the material screening structure is additionally arranged on one side of the drying machine, water-soluble fertilizer with high water content is large in viscosity, so that the size of the water-soluble fertilizer is large, the water-soluble fertilizer with low water content and small size is screened to the lower portion in the mode that the lower protrusion is knocked to enable the upper conveying plate to continuously conduct stretching operation, and therefore the water-soluble fertilizer with low water content and small size is screened to the lower portion. The water-soluble fertilizer is distinguished and dried, so that the problem of misoperation caused by incomplete drying of some water-soluble fertilizers with relatively high water content during drying is solved; and meanwhile, the adhered water-soluble fertilizer is dispersed by vibration in a vibration screening manner, so that the adhesion of the water-soluble fertilizer in the drying process is avoided.

The invention discloses a follow-up water drive potential tapping method based on flow field comprehensive analysis, and belongs to the technical field of potential tapping of remaining oil in a high-water-content stage in the middle and later periods of oilfield development. The method comprises the following steps: quantitatively identifying a dominant seepage channel based on streamline distribution, an oil saturation field and a water passing multiple of a target oil reservoir; dividing six remaining oil types and determining distribution characteristics of the remaining oil types; pressure system research and reasonable injection-production ratio regulation and control are combined, and differential potential tapping countermeasures for different remaining oil types are provided. According to the method, the development problems of high water content and low recovery degree in the subsequent water flooding stage of polymer flooding are effectively solved, and the oil reservoir recovery efficiency and development benefits can be remarkably improved.

The invention relates to the technical field of mixing equipment, in particular to biomass mixing equipment which comprises a base, a mixing tank and a screw conveyor, the screw conveyor continuously pumps biomass materials to be mixed from bottom to top, the mixing tank comprises an outer layer and an inner layer, and the outer layer and the inner layer are arranged on the base. A plurality of layers of electric heating wires are arranged between the outer layer and the inner layer at intervals from top to bottom, a feeding channel is arranged between every two adjacent electric heating wires, and a feeding port and a discharging port are formed in the two ends of each feeding channel respectively. Compared with a traditional method, according to the technical scheme, the screw conveyor is matched with the stop valve, materials can be regularly and directly added into the tank body from different heights of the material mixing tank, the mixing uniformity is improved, the mixing process can be adjusted according to actual needs, the operation flexibility and the mixing efficiency are improved, and the practicability is high. And meanwhile, the biomass material with relatively high water content can be dried by the electric heating wire in the adding process, so that the probability of material aggregation or caking is reduced.