35results about How to "Address uneven distribution" patented technology

The utility model relates to the technical field of heating equipment, and provides a heating device. The heating device comprises a box body, an air blowing component and a heat exchange assembly. Wherein a cavity is formed in the box body, an air outlet is formed in one end of the box body, an air inlet is formed in the other end of the box body, and the air outlet and the air inlet are both communicated with the cavity; the air blowing component is arranged in the cavity and used for forming air flow in the cavity, and the air flow flows from the air inlet to the air outlet; the heat exchange assembly is arranged in the box body and used for conveying heat in the warm air into the cavity. A first cover body is arranged at the air outlet and is used for blocking the air outlet; the air inlet is provided with a second cover body which is used for blocking the air inlet. According to the utility model, the defect that the heating equipment for directionally controlling the warm air in the prior art cannot utilize heat in the warm air is overcome, and the heating equipment which can utilize the heat in the warm air and can directionally and centrally control the flow direction of the warm air is realized.

The application discloses a kind of battery core temperature online estimation and prediction method, system, equipment and storage medium based on mixed TSDM-AMBO-GRU, applied to lithium ion battery core temperature estimation and prediction field, comprising: obtaining battery operating data, and utilizing TSDM to create synthesis of battery operating data, as training set with battery operating data together;Training set is input to BO-GRU-AM framework, and the battery core temperature prediction model based on BO-GRU-AM is obtained by training;Input test set to battery core temperature prediction model, and obtain battery core temperature prediction result.The application not only can effectively overcome the problem caused by uneven distribution of temperature sensors and limited data in lithium ion battery system, and can realize real-time, efficient and accurate battery core temperature prediction under various temperatures and complex conditions, provide reliable fault warning and real-time monitoring support for BMS in practical application.

The utility model discloses a double -row blade air intake distributor relates to spray tower waste gas treatment technical field. It includes spray tower, and the bottom of spray tower is equipped with waste gas entrance, and the inside fixed and waste gas entrance corresponding distributor. The distributor contains two rows of symmetrical blades, and the bottom plate and the cover plate fixed in the inside of spray tower, and the blade is fixed between two. The bottom plate, the cover plate are the same fan -shaped structure of shape size, and two ends are the arc shape of adapting with tower inner wall. The blade is "L" character shape and corner arc transition, and there is the shunt in the longitudinal adjacent blade, and the horizontal adjacent blade interval is gradually small. The distributor can even shunt waste gas, promote the utilization rate of filler, reduce local wind pressure, reduce resistance, improve waste gas purification effect.

The invention relates to a preparation method of a composite cementing system containing solid waste, and belongs to the technical field of cementing materials. The method comprises the following steps: respectively grinding all cementing materials after dehydrating; mixing all the cementing materials with water accounting for 60-70% of the total water amount, and stirring at a low speed for 60-90 seconds; adding the rest water, and stirring at a medium speed for 90-120s; and adding an alkaline activator, and stirring at a high speed for 60-90s to obtain a composite gel system containing solid waste. After dehydration and grinding, a part of water is firstly added to wet powder, then all water is added to realize uniform dispersion of the powder, and finally an alkaline activator is added to realize excitation of potential active materials in solid waste, so that the chemical activator is prevented from being wrapped or locally enriched by dry materials which are not fully dispersed, and the problem of non-uniform distribution is solved.

This utility model discloses a batching and mixing equipment for lithium slag building material production, including a mixer body. A spraying mechanism is installed at the upper end of the mixer body, and a discharge mechanism is installed on the side end of the mixer body. The mixer body includes a mixing tank, a stirring shaft, and a first motor. The first motor is fixedly installed at the bottom of the mixing tank, and a rotating shaft is installed on the output shaft of the first motor. The stirring shaft is fixedly installed on the rotating shaft. A support plate is installed on the upper end of the mixing tank. The spraying mechanism includes a chemical tank, a chemical supply pipe, a turntable, an angle adjusting rod, a submersible pump, and atomizing nozzles. The chemical tank is fixedly installed on the lower end of the mixing tank, and the bottom of the chemical supply pipe is connected to the outlet of the submersible pump. This utility model has the advantages of uniform spraying, wide coverage, and efficient and convenient discharge, solving the problems of uneven distribution of liquid additives and low discharge efficiency in traditional equipment.

The utility model provides an automatic ore granularity on -line detection and grading equipment. Including casing, support subassembly, push plate subassembly and industry camera, support subassembly includes upper support board, and upper support board is set in the casing, and push plate subassembly includes push plate and floating rod, and push plate is installed on the floating rod, and the floating rod is installed on the support subassembly through the floating assembly, and the interval between the lower edge of push plate and the upper end surface of upper support board changes in gradient, and the inner top of casing is equipped with industry camera. The floating rod drives the push plate to rotate, and the interval between the lower edge of push plate and the upper end surface of upper support board changes in gradient in the process of rotation, and the gathered ore is scattered, and the uniform dispersion of particles is ensured, and the uneven distribution of particles is solved. Secondly, the industrial camera directly shoots the dispersed particles, captures the distribution state of coarse and fine particles, avoids the problem that fine particles are covered or coarse particles are distorted, makes the granularity data closer to the true value, and improves the detection accuracy and reliability.

The invention discloses a system and a method for regulating and controlling the humidity of a cathode of an anode independent liquid supply AEM electrolytic bath. The system and the method are used for solving the problem of drying of a cathode film surface under high current density. The system comprises an electrolytic bath main body, a gas-liquid separation module and a humidification module. And an interface humidity adjusting layer is arranged in a cathode membrane electrode assembly of the electrolytic bath main body. Wet hydrogen produced by the cathode enters the gas-liquid separation module through the outlet to separate liquid water, and the liquid water is conveyed to the humidification module at the inlet end of the cathode and is converted into water vapor or fog drops to be mixed with hydrogen produced by the cathode to form humidified hydrogen backflow. Moisture in the humidified hydrogen is adsorbed by the interface humidifying layer and is uniformly diffused to a cathode film-electrode interface in the in-plane direction of the interface humidifying layer so as to maintain interface wetting. According to the method, independent moisture closed-loop circulation on the cathode side is constructed, so that self-regulation of the humidity of the cathode under the condition that external liquid supply is not needed is realized, the problems of moisture loss and non-uniform distribution caused by electroosmosis dragging are solved, and the operation stability and durability of the AEM electrolytic cell under high current density are remarkably improved.

The invention discloses an ammonia-methanol coupling gas production device and a use method thereof, and belongs to the technical field of controllable atmosphere preparation, the ammonia-methanol coupling gas production device comprises a central combustion zone, a peripheral cracking zone and a tail mixing purification zone which are coaxially nested; the central combustion area comprises a hearth wall, and the hearth wall is of a honeycomb-shaped porous heat exchange structure; the peripheral cracking area is arranged on the outer side of the central combustion area, a catalyst bed layer of a spiral flow guide structure is arranged in the peripheral cracking area, and a high-temperature-resistant heat-conducting filling layer is arranged between the catalyst bed layer and the hearth wall of the central combustion area; the tail mixing and purifying area is connected to the downstream of the central combustion area and the peripheral cracking area and used for mixing and purifying combustion products from the central combustion area and cracking gas from the peripheral cracking area. By optimizing a heat exchange interface and a catalyst bed layer structure, the heat transfer uniformity and the response speed are enhanced, so that stable temperature control and preparation of high-purity mixed gas are realized.

The present disclosure relates to the technical field of extruders, and one embodiment of the present disclosure provides a cable extruder facilitating temperature control, which comprises an extruder body, a feeding box and a circulating water tank, the feeding box is arranged at the top of the extruder body, the circulating water tank is arranged at the bottom of the extruder body, a circulating cooling assembly is arranged on the circulating water tank and the extruder body, a top frame is fixed at the top of the feeding box, a feeding preheating assembly is arranged on the top frame, and the circulating cooling assembly comprises a pair of outer covers, a convex layer is attached to the two end faces of the outer cover, and a water inlet cover is arranged on the outer cover at the top. Through the above technical solution, the technical problem that the violent friction between the screw and the barrel and the material shearing will generate a large amount of heat, resulting in a sharp rise in the temperature in the barrel and uneven distribution, and the existing equipment lacks an effective preheating and temperature control mechanism for the pellets or powder entering the extruder, and the low-temperature material directly put into the high-temperature barrel will cause unstable melting speed due to the large temperature difference.

This invention relates to a multi-energy coupled self-driven wastewater treatment and heat recovery synergistic system. It includes a wastewater treatment component, a heat recovery component, and a thermoelectric module. The wastewater treatment component comprises a flocculation chamber, a wastewater treatment chamber, and a flocculated particle collection chamber. The sidewall of the flocculation chamber is equipped with a flexible diaphragm switch driven by fluid pressure difference, enabling adaptive and precise dosing of flocculant. The flocculated particle collection chamber is equipped with a flocculated particle capture plate triggered by particle gravity torque, achieving self-triggered solid-liquid separation. The heat recovery component suspends multiple phase change heat storage rods via elastic ropes. The front end of each phase change heat storage rod has a balance ball controlled by a positive arc temperature-sensing piezoelectric spring signal, which, together with the elastic ropes, excites the phase change heat storage rod to generate multi-degree-of-freedom oscillation, enhancing heat transfer. The phase change heat storage rods have a built-in thermoelectric module that converts the temperature difference energy and expansion mechanical energy of the phase change process into electrical energy, providing self-powered operation for the system. This achieves integrated, low-energy-consumption operation.

The utility model relates to the technical field of oven, concretely is a hot -blast circulation oven. Including the box, the lateral wall of box is provided with the cabinet door, and the top of box is provided with the air inlet and the moisture discharge port, and the top of moisture discharge port is provided with the moisture exhaust fan, and the inner chamber of box is provided with the circulation fan opposite with air inlet, and the inside of box is provided with the drying room, and the drying room forms the first air duct, the second air duct and the third air duct with the box, and the left side board and the right side board of drying room all are provided with the air vent, and the second air duct is provided with the heating device, and the air vent is provided with the regulation air baffle that is spaced apart up and down, and the drying room is provided with the adjustment structure that adjusts the interval of two adjacent regulation air baffles, and the outer wall of box is provided with the control panel. The utility model, through setting up and down interval regulation air baffle at the air vent of drying room lateral wall, and being equipped with adjustment structure, can flexibly adjust the interval of adjacent air baffle, realizes the accurate control to the different height hot -blast distribution amount in drying room.

The utility model is applicable to the technical field of moringa oleifera leaf preservation, and provides a refrigeration device convenient for moringa oleifera leaf preservation, which comprises a base plate, and a refrigeration box is fixed at the top of the base plate and is used for preserving and refrigerating moringa oleifera leaves; the rotatable placing frame is arranged in the refrigerating box, and a plurality of net baskets capable of being pulled and detached are arranged on the placing frame and used for containing horseradish tree leaves; the refrigerating machine is fixedly mounted at the top of the refrigerating box; and the air outlet pipe is fixedly installed in the refrigerating box, and the air inlet end of the air outlet pipe is fixedly communicated with the cold air output end of the refrigerating machine. According to the cold storage device facilitating preservation of the moringa oleifera leaves, the containing frame can be driven by the driving mechanism to rotate, so that the moringa oleifera leaves at different positions have the opportunity to make contact with cold air, and the problem that cold air is difficult to penetrate through densely-stacked leaves in a traditional stacking and cold storage method is solved.

This invention discloses a PVA water-soluble adhesive tape and its preparation method, relating to the field of environmentally friendly polymer materials technology, and belonging to patent classification number C09J103 / 04. The method includes the following steps: mixing oxidized starch with deionized water, adding polyamide polyamine epichlorohydrin resin, and heating to carry out an ionic crosslinking reaction to obtain ionicly crosslinked starch; cooling the ionicly crosslinked starch, then adding carboxybetaine methacrylate and ammonium persulfate, and heating to carry out a free radical grafting reaction to obtain modified starch; adding polyvinyl alcohol aqueous solution and borax decahydrate to the modified starch to carry out a borate ester crosslinking reaction to obtain a water-soluble starch-based adhesive; preparing a PVA film substrate using a blown film process, uniformly coating the water-soluble starch-based adhesive onto the PVA film substrate using a precision coating machine, and then curling and slitting to obtain the PVA water-soluble adhesive tape. The PVA water-soluble adhesive tape prepared by this invention not only has good water solubility but also excellent adhesive properties.

The utility model discloses a kind of stirring devices for solid-state battery electrolyte production, it is related to solid-state battery electrolyte stirring processing tool technical field, including main body, the feeding port being opened in the top end of main body and the discharge port being installed in the bottom end of main body, the equidistance installation of multiple supporting rods is installed in the bottom end of main body, and transmission mechanism is installed on the upper end of main body, and discharge mechanism is installed on discharge port;The utility model is through the cooperation of first gear and the second gear of periphery, it is convenient for first gear to drive multiple second gears to rotate, and then expand stirring area, avoid raw materials uneven distribution in local area;Again through the stirring of hexagonal shape, it is convenient to make stirring more sufficient, mix more evenly, and then improve mixing effect;Finally solve the problem that the simple structure of stirring rod of existing device leads to poor stirring mixing degree and single stirring rod stirring area is small, causes raw material uneven distribution.

This utility model discloses a high-efficiency plant active ingredient extraction and processing device, relating to the field of plant extraction. The device includes a grinding chamber, a feeding rack, a grinding plate, a leveling plate, and a driving device. The grinding chamber has a cavity with a fixed plate inside, dividing the cavity into an upper grinding chamber and a lower collecting chamber. The fixed plate has multiple collecting holes. The feeding rack is located on one side of the grinding chamber and has an inclined channel communicating with the cavity. The grinding plate is located at the top of the cavity. The leveling plate is located on the lower side of the grinding chamber. The driving device is located outside the grinding chamber and drives the leveling plate to move from the lower side of the grinding chamber to the other side, leveling the fruit peel material piled on the fixed plate. This utility model aims to automate the problem of uneven material distribution in traditional equipment.

The application relates to the technical field of heat exchange, in particular to a high-efficiency shell-and-tube heat exchanger and a preparation method thereof. The high-efficiency shell-and-tube heat exchanger comprises a shell, a head assembly, a tube bundle assembly, a first flow control assembly, a second flow control assembly, a first fixing assembly and a second fixing assembly. The tube bundle assembly, the first flow control assembly and the second flow control assembly are arranged along the depth direction of the shell, the tube bundle assembly penetrates through the first and second flow control assemblies and is in sliding connection with the first and second flow control assemblies, and a pitch adjusting assembly in the shell can adjust the distance between the first and second flow control assemblies. The liquid inlet part and the liquid outlet part are diagonally distributed, the first and second flow control assemblies are combined to guide the fluid flow, and a pressure stabilizing part and a heat conduction assembly are arranged. The tube bundle assembly adopts a multi-stage variable-diameter design, and the second fixing assembly comprises a flow collecting piece and a fixing piece. The above scheme avoids the mixing of the tube-side medium and the shell-side medium, reduces the thermal expansion coefficient of the connection part and stress concentration, solves the problem of uneven heat transfer efficiency caused by uneven distribution of the shell-side fluid, and improves the temperature uniformity of the heat exchanger and the heat exchange efficiency.

The utility model discloses a ball pin seat for automobile steering system, shell, the ball seat body of integral mould with shell, the bushing of being located in the ball seat body and the ball pin of bottom embedding in the bushing, the ball seat body center is equipped with the mounting hole of going through up and down, the bushing is located in the mounting hole, and the bottom of mounting hole is connected with the compression seat of screw thread, is equipped with the oil storage cavity in the compression seat, and the bottom of bushing is equipped with a plurality of drainage holes of uniformity in the circumference, and the both ends of drainage hole communicate bushing inside and oil storage cavity, and the clearance between ball pin and bushing is filled with lubricating oil, and the oil storage cavity is filled with the inflation graphite - paraffin compound, the inner wall of drainage hole is processed to have spiral flow guide groove, and the inflation graphite - paraffin compound filled in the oil storage cavity melts and expands when temperature rises, and the stored lubricating oil is pumped back to bushing and realizes self -lubricating in reverse, and the inflation graphite promotes lubricating oil microcirculation under the vibration of vehicle, reduces the wear and tear of ball pin seat, prolongs the life.

This invention discloses a preparation process for a targeted drug delivery system based on the synergistic effect of Lamp2b and IMTP, comprising the following steps: constructing cells overexpressing the Lamp2b-IMTP fusion protein, culturing cells overexpressing the Lamp2b-IMTP fusion protein, thereby obtaining the targeted drug delivery system. The Lamp2b / IMTP synergistic targeted drug delivery system obtained by this invention allows for the specific accumulation of drugs in target cells, such as tumor cells, achieving precise drug delivery. The fundamental localization role of Lamp2b: Lamp2b is a naturally occurring transmembrane protein on the surface of exosomes, responsible for mediating the "initial recognition" between exosomes and recipient cells, ensuring that the delivery system, with exosomes as the core carrier, can be effectively recognized and bound by cells, avoiding rapid clearance by the body as a "foreign substance."

The application discloses a lactoferrin freeze-dried powder and a preparation method thereof, and relates to the technical field of food processing and biological products. The preparation method comprises the following steps: placing a lactoferrin solution in a freeze-drying device, supercooling the lactoferrin solution to obtain a supercooled sample; starting a forced freezing program to cool the supercooled sample to below-35 DEG C, and rapidly freezing the supercooled sample for 1-3 hours to obtain a rapidly frozen sample; and sequentially performing sublimation drying and resolution drying on the rapidly frozen sample under vacuum conditions. In the application, supercooling is performed before freezing, the freezing process can be actively and accurately controlled, and the flowability of the lactoferrin freeze-dried powder can be significantly improved by inducing the formation of small and uniform ice crystals; and the method is safe and efficient without the need of adding a flow agent.

The utility model relates to a device for producing sulfur autotrophic denitrification filler, including mixing mechanism, granulating mechanism, mixing mechanism inner chamber is equipped with stirring wing, is used for mixing material stirring, and the discharge port of mixing mechanism is linked with granulating mechanism, and the output of granulating drive mechanism is connected with the transmission of rotating shaft, and a plurality of double screw granulating rollers are detachably connected with the rotating shaft, and each double screw granulating roller includes two mutually crossed screw rods, and the double screw granulating roller is used for the even mixing of the raw materials put in the granulating mechanism and the mixed material mixed and stirred in the mixing mechanism, the shearing -pushing cooperation of the double screw of the utility model can scatter the agglomerated sulfur powder and force it to embed in the carrier aperture, and the mixing and conveying are integrated in the same process, avoid the material static stratification, guarantee the uniform proportion of sulfur source and carrier in the primary product, and provide the guarantee for the stability of subsequent sulfur release rate.

The utility model provides a kind of filtering membrane structure of spherical graphite reverse osmosis device belongs to spherical graphite reverse osmosis device technical field, the filtering membrane structure of this spherical graphite reverse osmosis device includes: spherical shell, filter membrane component, support framework, water inlet pipeline, water outlet pipeline and sealing ring;The spherical shell is made of stainless steel material, the surface of spherical shell is equipped with water inlet and water outlet, water inlet is located in the upper hemispherical surface of spherical shell, and water outlet is located in the lower hemispherical surface of spherical shell;The filter membrane component is arranged inside spherical shell, and the filter membrane component includes graphite filter membrane and membrane fixed frame, the graphite filter membrane is spherical and concentrically arranged with the inner surface of spherical shell;It can solve the technical problems that the filtering membrane structure of spherical reverse osmosis device in the prior art has uneven stress on membrane material, insufficient support strength, unreasonable fluid distribution, low filtration efficiency and short membrane life.

This utility model relates to the field of cooling water treatment technology and discloses a cooling water treatment device for an injection molding workshop. It includes a closed-circuit cooling tower body and heat exchange tubes installed within the closed-circuit cooling tower body for heat exchange. It also includes: guide plates symmetrically installed at the air inlet of the closed-circuit cooling tower body for airflow guidance; and a flow guide plate fixedly installed within the closed-circuit cooling tower body and located above the air inlet, with exhaust holes arranged in a rectangular array on the flow guide plate for air outlet. This utility model, by setting exhaust holes on the flow guide plate, installing conical tubes corresponding to the exhaust holes at the lower part of the flow guide plate, and linearly arraying corrugated baffles on the heat exchange tubes to form an exhaust path, can achieve uniform rectification and directional convergence of airflow, extend the contact time and coverage area between the airflow and the heat exchange tubes, and simultaneously guide the cooling water to fall through the exhaust holes, avoiding mutual interference between air and water. This solves the problems of chaotic airflow paths and insufficient heat exchange in the heat exchange tube area in the prior art.

This utility model discloses an improved chlorine water distributor with a water distribution tank, belonging to the technical field of water treatment equipment. The distributor includes a tank, a diversion mechanism disposed within the tank, and a power assembly. The diversion mechanism includes an upper trapezoidal diversion chamber and a lower diversion channel; the trapezoidal diversion chamber contains a diversion plate to initially divide the incoming chlorine water; multiple rotating plates are rotatably disposed within the diversion channel. The motor of the power assembly drives a turntable to rotate via gear transmission. The turntable, through a linkage mechanism, converts the rotational motion into the synchronous reciprocating oscillation of multiple rotating plates, dynamically and precisely diverting the chlorine water. The distributor also includes a fixing mechanism. This utility model, through a two-stage diversion structure combining static and dynamic methods, solves the problems of uneven chlorine water distribution and easy formation of channeling in existing technologies, significantly improving distribution uniformity; simultaneously, its quick-release nozzle structure greatly facilitates daily maintenance of the equipment and improves work efficiency.

The utility model relates to gypsum board generating equipment technical field, concretely relates to a kind of adjustable gypsum slurry uniform material distribution device, including feeding hopper, regulating valve, horizontal auger conveyor and uniform discharge component;Feeding hopper is connected the input end of horizontal auger conveyor by regulating valve;Uniform discharge component includes tapering discharge nozzle, trapezoidal flow guide plate and transverse uniform flow grid;The input end of tapering discharge nozzle is connected the output end of horizontal auger conveyor;The top edge of trapezoidal flow guide plate is connected the outlet end of tapering discharge nozzle, the bottom edge of trapezoidal flow guide plate is connected transverse uniform flow grid, and multiple evenly distributed grids are formed on transverse uniform flow grid;Trapezoidal flow guide plate has multiple parallel and downward diffusion flow guide grooves, and flow guide groove is communicated tapering discharge nozzle and grid.The utility model can solve the problems of large energy consumption, easy to block, insufficient uniformity of material distribution and non-adjustable flow of existing material distribution mechanism.

The utility model provides a kind of Mylar film and lithium ion battery.The Mylar film has insulation, along the thickness direction of Mylar film, Mylar film includes sequentially arranged base layer, elastic buffer layer and protective layer, base layer is used to support elastic buffer layer, elastic buffer layer is configured to be able to elastically deform, protective layer is compounded on the surface of elastic buffer layer and can be deformed, protective layer is used to block electrolyte permeation to elastic buffer layer.The technical scheme of the utility model solves the problem of uneven distribution of electrolyte caused by the rigidity of Mylar film in the prior art.

The utility model discloses a kind of polyurethane board waterproof detection devices, it is related to plate waterproof detection technical field, including water tank, wind box and bearing table, the inside rotation of wind box is connected with fan, the bottom of water tank is fixedly connected with support plate, the upper surface of support plate is fixedly installed with positioning frame, the inside of positioning frame is slidably connected in one end of bearing table, wind box is fixedly installed in one side of water tank support, wind box is between water tank and bearing table, the utility model is set up wind box to be evenly blown to moisture on polyurethane board, when actual use, the rotation of fan can fully agitate moisture, to ensure that the moisture sprayed will be in a wide range of fog shape and polyurethane board contact, solve the problem that water flow is unevenly distributed on the surface of plate, to ensure the data accuracy of detection result, bearing plate is set simultaneously to determine the position of plate, the stability of plate can be guaranteed in the process of detection.

The application provides a method for preparing a foam ceramic filter by using waste chrome corundum and relates to the field of solid waste utilization. The method comprises the following steps: grinding the waste chrome corundum, and screening to obtain fine particles, medium particles and coarse particles; mixing the fine particles with cerium oxide and lanthanum oxide to obtain a first mixture, mixing the medium particles with zirconium oxide to obtain a second mixture, and mixing the coarse particles with aluminum oxide to obtain a third mixture; calcining the first mixture, the second mixture and the third mixture 2-4 times at 1000-1300 DEG C, and then grinding and mixing to obtain a fourth mixture; mixing the fourth mixture with glycerol and solvent oil, stirring by using a double-planet stirrer to obtain a slurry, impregnating the slurry by using soft polyurethane foam as a carrier, and then extruding and drying to obtain a blank; and sintering and cooling the blank to obtain the foam ceramic filter. The method provided by the application fully utilizes the waste chrome corundum to prepare the foam ceramic filter with excellent performance.

The application discloses a kind of carboxyl butadiene-styrene latex and its preparation method and application.The carboxyl butadiene-styrene latex is the emulsion of three monomer copolymers of butadiene, styrene and 4-vinyl benzoic acid.The preparation method is to use 100 parts of deionized water as water phase, 35-45 parts of butadiene, 15-20 parts of styrene and 2-8 parts of 4-vinyl benzoic acid as organic phase, and is prepared by 0.05-0.1 parts of water-soluble and 0.1-0.15 parts of oil-soluble compound initiator to initiate emulsion polymerization.The carboxyl butadiene-styrene latex prepared in the application has better stability and adhesion than conventional acrylic-butadiene-styrene latex, and can be used as an additive in oil and gas well engineering to plug cracks and reduce leakage.

The present application relates to the technical field of automatic control, in particular to a silica gel cat litter antibacterial coating uniformity control method and system, comprising the following steps: collecting spectrum screening characteristic waveband and setting film formation rate standard, performing logarithmic transformation on fluidized bed reflected light data to generate real-time absorbance, performing division operation to generate real-time coating distribution ratio, constructing cache sequence to analyze change slope to generate actual film formation rate index, and calculating pressure compensation amount according to deviation and generating regulation and control voltage instruction. In the present application, a standard is established by collecting spectrum signals, absorbance data is generated based on logarithmic transformation, a coverage index is obtained by performing division operation, a distribution ratio change slope is constructed by sequence analysis, the actual rate is compared with the standard to calculate the pressure compensation amount and generate the regulation and control instruction, the problem of uneven distribution caused by value control is solved by realizing closed-loop control, and the cumulative speed of the antibacterial agent is ensured to meet the expectation and the coating uniformity is improved.

The utility model relates to the technical field of rear suspension control arms, and discloses a hollow thin-wall rear suspension control arm with long service life, which comprises a suspension mechanical arm, one end of the suspension mechanical arm is fixedly connected with a ball head shell, a ball socket is arranged in the ball head shell, separation strips are fixedly connected in the ball socket at equal intervals, and the separation strips are fixedly connected with the suspension mechanical arm. By means of the arrangement of the whole device, especially the improvement of the ball head, the whole suspension control arm can effectively improve the vehicle control performance, specifically, due to the fact that the original ball head is improved and designed into the mode that the inner-layer ball head, the outer-layer ball head and the buffer layer are combined, the service life is remarkably prolonged, and the service life of the whole suspension control arm is prolonged. Therefore, vibration and abnormal sound in the vehicle driving process are effectively reduced, the vehicle driving stability and smoothness are improved, and more comfortable driving experience is provided for drivers and passengers; in addition, the maintenance cost of the vehicle can be greatly reduced, and the service life of the ball head is effectively prolonged.