189results about How to "Guaranteed normal function" patented technology

The invention relates to a carrier-storing grooved gate IGBT with a P-type floating layer, belonging to the technical field of semiconductor power devices. On a basis of the prior carrier-storing grooved gate bipolar transistor, a P-type floating layer (13) is introduced to almost free a carrier-storing layer from bearing a withstanding voltage and decrease a forward conducted voltage drop; and the P-type floating layer (13) also improves the electric-field integration effect of the bottom of the grooved gate, thereby effectively decreasing an electric filed with a maximum peak value, preventing the bottom of the grooved gate and the vicinity of the high-concentration carrier-storing layer from being broken down by an overhigh electric field and greatly increasing the breakdown voltage of the device. A JFET zone is introduced due to the existence of the P-type floating layer. When the device is forwardly conducted, the resistance of the JFET zone continuously increases along with the continuously increasing voltage of a collector so that the saturation current of the device is decreased, and a lower conducted voltage drop is obtained while maintaining a greater short-circuit safety operation area (SCSOA).

The invention discloses a preparation method of a two-dimensional inorganic layered compound / graphene composite material. The preparation method of the composite material comprises the following steps: preparing layered compound dispersion liquid with positive charges on the surface and oxidized graphene dispersion liquid with negative charges; mixing the two kinds of solution to perform self-assembling under an electrostatic interaction to obtain the ordered two-dimensional inorganic layered compound / graphene composite material assembled alternatively layer by layer; and carrying out reduction reaction on the composite material under certain conditions to obtain the two-dimensional inorganic layered compound / graphene composite material. According to the two-dimensional inorganic layered compound / graphene composite material, the two-dimensional inorganic layered compound and the graphene are assembled alternatively layer by layer under the electrostatic interaction; the required equipment has low requirement and is easy to operate; the graphene can provide a good electronic transmission channel for the inorganic layered material, so as to enhance the electrical conductivity of the inorganic layered material, prevent agglomeration, and achieve an important effect on the material structure stability. The two-dimensional inorganic layered compound / graphene composite material can be widely applied to the fields of catalytic and electrochemical energy storage fields.

The invention relates to a novel normal-pressure room-temperature plasma induced mutation breeding device. The novel normal-pressure room-temperature plasma induced mutation breeding device comprises a sample processing system, a cooling system, a control system and a detection system; the sample processing system comprises a clean working chamber without bioactive contaminants; a step motor and an object stage are arranged in the clean working chamber; the object stage is arranged on the step motor; at least one sterilizing device mounting position is reserved in the inner cavity or on the wall of the clean working chamber; the detection system comprises a gas flow controller, a temperature sensor and a position sensor; and the control system comprises an operating panel and a controller, and the controller is used for controlling the step motor to realize rising and falling or horizontal rotation of the object stage so as to automatically process a plurality of samples. The novel normal-pressure room-temperature plasma induced mutation breeding device is capable of realizing the functions of continuous automatic processing, automatic sterilization, automatic monitoring and control on the samples, and also capable of completing the plasma induced mutation breeding in the normal pressure and room temperature environment at higher efficiency.

The invention discloses fiber enhanced silicon carbide porous ceramic which is composed of the following components in part by weight: 1 part of a ceramic binder, 1-3 parts of mullite fiber pulp, 8 parts of silicon carbide particles with an average particle size being about 230microns, and 1 part of a pore-forming agent. The preparation method is implemented through the steps that firstly, homogeneous mullite fiber pulp is prepared, so that when the mullite fiber pulp is mixed with a binder and silicon carbide particles with large particle sizes, mullite fibers can be uniformly dispersed but not agglomerated, thereby achieving a good toughening effect in a ceramic matrix. The invention further discloses an application of the fiber enhanced silicon carbide porous ceramic in the aspects of preparing silicon carbide porous ceramics and improving the toughness of silicon carbide porous ceramics.

The invention discloses a method for controlling access, an access gateway and an authentication server which belongs to the communications technology field. The method includes steps as follows: when a terminal accesses 3GPP network from non-3GPP network, judging the terminal whether having multi-module ability and switching ability for signed up various type network, and the network type corresponding to the multi-module ability includes at two network types corresponding to one switching ability of the switching ability; if yes, the access gateway in non 3GPP network obtains PDN GW address; if no, no-obtain PDN GW address. The access gateway includes a sending module and a receiving module. The authentication server includes a receiving module and a sending module. The method can realize that the terminal probable occurring network switch is anchored on PDN GW, the terminal no-probable occurring network switch is not anchored when the terminal accesses 3GPP network from non 3GPP for avoiding unnecessary burthen to PDN GW.

A deceleration strip for intelligent transportation based on capacitance change relates to the technical field of intelligent transportation and comprises a road, and a T-shaped groove is formed in the top of the road. According to the intelligent traffic deceleration strip based on capacitance change, a piston block is matched with a rubber pad for use; when a vehicle slowly passes through the deceleration strip, the turbid liquid in the liquid storage tank is slowly stressed; at the moment, the piston block can slowly move downwards through the hydraulic principle; the contact area between the piston block and the turbid liquid is large, at the monment, the piston rod does not move downwards; when the piston block moves to the bottommost part, the dielectric plate can reduce the relativearea between the positive plate and the negative plate; the voltage of the circuit reaches the maximum access voltage of the piezoresistor, the top of the rubber pad and the road surface of the roadare at the same height, the turbid liquid becomes solid after being powered on, vehicles can pass through the turbid liquid conveniently, and therefore the effect of slow passing without vibration isachieved, the vehicle taking experience is remarkably improved, and safety of passengers and the vehicles is guaranteed.

The invention relates to frozen and dried maca. The preparation of the maca comprises the following steps of: cleaning maca, airing moisture on the surface of the maca, feeding the maca into a vacuum freezing and drying machine, and cooling and freezing the maca to -35 to -40 DEG C; and drying the frozen maca in vacuum for 15-25 hours at a vacuum degree of 3-10 Pa, thus obtaining the frozen and dried maca, wherein the final drying temperature is controlled to be less than 35-40 DEG C. According to the invention, more than 95%-99% of moisture in the maca can be eliminated, other components in the maca are reserved in an original ecological manner, and particularly, many thermosensitive substances, such as protein, amino acid and volatile substances, are effectively reserved; because the maca is dried with in vacuum with little oxygen, some easily oxidized substances are also protected; and the original shape and properties of the maca is kept, the maca can be preserved for a long time, and thus the effects of maca health-care foods are ensured.

The invention provides a method for operating an application control and a mobile terminal. The method comprises: detecting a continuous clicking operation on a screen of the mobile terminal within a predetermined time length; determining a target application control to be clicked on the screen according to a first coordinate range of the continuous clicking operation; opening a suspension touch function to detect a vertical distance between a finger touch point suspended over the screen and the target application control, wherein a positive projection of the finger touch point on the screen falls into an icon range of the target application control; and adjusting a second coordinate range of the target application control to respond to the clicking operation according to the vertical distance. The method for operating the application control can improve the probability of successful triggering of the target application control by means of the adjusted coordinate range and ensure the normal function use of the target application control.

The invention relates to a portable automatic window breaking device, which comprises a glass breaking assembly, wherein the glass breaking assembly is arranged in a sleeve; one end of the sleeve is fixedly connected with a handle, and the other end of the sleeve is fixedly connected with a sucker; a circuit control board is arranged in the handle; a pressure contact switch is arranged between the glass breaking assembly and the circuit control board; the bottom of the glass breaking assembly axially presses the pressure contact switch to release protection; the glass breaking assembly which releases protection is controlled by a starting switch on the circuit control board to act; and electric signals are provided by an energy storage battery. The portable automatic window breaking device has large initial kinetic energy, easily and quickly breaks glass, has the glass breaking capacity which is 5 to 25 times that of the traditional safety hammer and can break common toughened glass which is 3-12mm in thickness; a safety protection structure is arranged to ensure that the portable automatic window breaking device is safe and reliable in the carrying and glass breaking processes; meanwhile, the device has functions such as sound warning, flash warning and lighting.

The invention discloses a network traffic identification method, device and equipment and a computer storage medium, and the method comprises the following steps: collecting and labeling network traffic in different graph modes; preprocessing the acquired network traffic, and extracting feature information of each network session; generating a data flow diagram based on the feature information; training a graph neural network by utilizing the data of the data flow graph to generate a network flow identification model; converting unknown flow into data of a data flow graph and inputting the data into the network flow identification model, wherein the network flow identification model matches the data flow graph of the unknown flow with a graph mode learned by the network flow identificationmodel; and when the matching degree is greater than a preset threshold, judging a graph mode corresponding to the unknown flow, thereby determining a network application corresponding to the unknownflow. According to the invention, the problem of low accuracy of network traffic identification is solved, and the graph pattern of the network traffic and the corresponding network application are judged by using the graph neural network.

The invention discloses an erasure pool creating method and device based on erasure codes, a computer-readable storage medium and a server. The method includes the steps of modifying erasure strip size allocation information in a processing flow for creating the erasure pool into erasure strip unit allocation information; obtaining a creating instruction, and parsing the creating instruction to obtain erasure strip unit data, wherein the erasure strip unit data is set according to storage files; obtaining the erasure codes, and multiplying the data block values in the erasure codes with the erasure strip unit data to obtain strip size data; according to the strip size data, creating the erasure pool. By setting the strip size to prevent writing of excessive data, the overall read-write performance of a system is improved, an erasure algorithm can be better adapted through different erasure strip sizes, the running efficiency of the algorithm is improved, the consumption of a CPU is reduced, and since different erasure strip sizes can be applied to different file types, the whole IOPS is improved, and the system can show out the optimal performance.

The invention reolates to a rotary roller device for cleaning textile machine comprising a freely rotated cleaning piece (20) mounted on roller which is movably supported by guide piceces (21,22,24). In order to improve the cleaning effect and prolong the maintenance period, it is suggested that the cleaning piece should be constructed by brush roller (20).

The invention discloses an unbalanced data classification method based on clustering downsampling. The unbalanced data classification method comprises the following steps: utilizing a quick search anddiscovery density peak value clustering algorithm for clustering various categories of samples of a training set to obtain a clustering result; dividing multiple categories of samples in the trainingset into N clusters; forming a new sample set by each cluster of sample of multiple categories of samples in the training set and small categories of samples in the training set, and utilizing a support vector machine for classification to obtain the support vectors of multiple categories of samples in the training set; extracting the new training set formed by the support vector of each clusterand the small categories of samples in the training set; training the new training set through the support vector machine, and carrying out performance evaluation through a cross verification set. Thetraining time of the classifier can be shortened, in addition, the identification rate of small categories of samples can be improved under a situation that the identification rate of multiple categories of identification samples is not harmed, and the performance of the classifier is improved.

The invention discloses a multi-directional hydraulic extrusion press for semi-solid metal forming. The multi-directional hydraulic extrusion press comprises a moving transverse beam, wherein the moving transverse beam is positioned between an upper transverse beam and a lower transverse beam and is put on a working table connected with the top part of the lower transverse beam; the moving transverse beam is of an octagon symmetric welded frame structure; an oil port on an oil supply valve piece of the moving transverse beam is connected with the oil inlets and oil outlets of four piston cylinders inside the moving transverse beam; an oil return path of an oil return path block is also connected with the oil supply valve piece of the moving transverse beam; piston rods of two side surface lifting piston cylinders are respectively connected with the upper surfaces of the oil supply valve piece and the oil return path block of the moving transverse beam; the front end rear end covers of the two side surface lifting piston cylinders are respectively fixed on the upper transverse beam; and the moving transverse beam vertically moves along the vertical direction of the moving transverse beam. the installation and the fixation of a fixed die and the working table on the lower transverse beam and the installation and the fixation of the piston cylinders inside the moving transverse beam are facilitated; and the multi-directional hydraulic extrusion press has the advantages that a die can be split and pressed in multiple directions, the forming forces of a part are relatively uniform, the moving transverse beam can vertically move along the vertical direction, and the like.

The invention discloses a stirring barrel of a canned food mixer, which is used for solving the problem that food is easily damaged by the impact effect of a stirring blade of the mixer to food. The stirring barrel comprises a cylindrical inner case and an outer case, a cavity of the stirring barrel is formed by cooperating and connecting the inner case and the outer case; a nozzle is arranged in the cavity, a through hole is opened on the inner case, the through hole is arranged on the inner case along a spiral line, a nozzle orifice of the nozzle is mutually adapted to the through hole, and the nozzle is communicated to the compressed air outside the stirring barrel through a pipeline. The stirring barrel is capable of reducing the impact of stirring blades to the food, minimizing the damage to food, and increasing the stirring efficiency.

The present invention provides a transcatheter cardiac valve pre-assembly system and pre-assembly method. The system comprises a delivery system and a protective device. The delivery system includes acatheter for loading valves, the protective device is provided with a cavity in communication with the catheter, the cavity is used for accommodating at least a portion of the valves that are not taken by the catheter and the cavity has at least one opening. According to the invention, when the valve is pre-assembled with the delivery system catheter, the part of the valves that are not taken bythe catheter is protected by the protective device, the part of the valves outside of the catheter is prevented from being deformed or damaged due to the collision or extrusion, and the normal function of the valves is ensured, and the service life of the valves is prolonged.

The invention provides a wire connecting terminal special for a photovoltaic wire connecting box circuit board. The wire connecting terminal comprises a shell, an electric conductor arranged in the shell and a spring piece, wherein a wire inlet is arranged on the shell; the spring piece is arranged in the shell; one end of the spring piece is fixed on the inner surface of the shell, while the other end is abutted against the side edge of the electric conductor and in elastic contact with a lead inserted in the shell; the end of the spring piece in contact with the lead comprises a first elastic piece and a second elastic piece which are connected in a V shape; and the tail end of the first elastic piece is provided with a plurality of convex teeth. Because the tail end of the second elastic piece is provided with a plurality of convex teeth, when the spring piece is in the elastic contact with the lead, friction force between the spring piece and the lead is increased, thus the lead isnot easy to pull out after being inserted in the shell. The locking capacity of the wire connecting terminal is greatly improved and the connection between the lead and the electric conductor is morereliable.

The invention provides a protective rod. At least one section of the rod body of the protective rod is a protective section. Protective material coats the protective sections. A protective sleeve capable of wrapping the protective material sleeves each protective section. One end or two ends of each protective sleeve are provided with sealing fixing ends which allows the tips of the protective sleeves to combine and fix with the rod body so as to prevent the sliding of the protective sleeves and avoid protective material leaking. The protective sleeves are heat-shrinkable bushes or thermos-melting bushes formed through thermos-melting extrusion. The protective rod has the advantages that sealing of the protective material is achieved by the protective sleeves, the protective material is prevented from losing, the protection function of the protective material can be kept, and the protective sleeves constantly and tightly wraps the protective material to prevent the protective material from leaking; the protective sleeves are positioned and fixed by the sealing and fixing ends, and protection reliability of the protective sections is increased. The invention further provides an anchor rod with the protective rod, a rod for a concrete structure, and a manufacturing process of the rod.

The invention discloses a food stirring device.The food stirring device comprises a base, a stirring bucket, a stirring device body, a protection body, a barrel-shaped inner shell and a barrel-shaped outer shell.The stirring bucket is installed on the base, the protection body is installed on the right side of the base, and a sealing cover is arranged at the top of the stirring bucket; the inner shell and the outer shell are matched and connected to form a cavity of the stirring bucket; a spraying head is arranged in the cavity, a through hole is formed in the inner shell along a spiral line, nozzles of the spraying head and the through hole are adapted, and the spraying head is communicated with compressed air outside the stirring bucket through a pipe; the stirring device body comprises a stirring shaft, a stirring shaft sleeve, stirring shaft supporting rods and cutter fixing discs; the stirring shaft sleeve is rotationally connected to the upper end of the stirring shaft; one ends of the stirring shaft supporting rods are rotationally connected with the edge of the stirring shaft sleeve, and the other ends of the stirring shaft supporting rods are connected into sliding grooves in a sliding mode; the stirring shaft sleeve is rotationally connected with the upper end of the stirring shaft.

The invention discloses an automobile LED front fog lamp. The automobile LED front fog lamp comprises a lampshade, a housing and a radiator which are sequentially connected, wherein a disc-shaped LED light source is arranged on the inner part of the housing, and a plurality of LED lamp beads are connected on the disc-shaped LED light source; an I-shaped structure in the axial direction of the housing is further arranged on the inner wall of the housing; a lower sealing ring is arranged between the I-shaped structure and the disc-shaped LED light source; an upper sealing ring is arranged between the I-shaped structure and the lampshade; the inner wall, close to the lampshade, of the I-shaped structure is further connected with a reflecting mirror; the reflecting mirror is of a bowl-shaped structure; and the diameter of the reflecting mirror is gradually increased from the disc-shaped LED light source to the lampshade. According to the LED front fog lamp, the lampshade penetrating capacity of the front fog lamp is strengthened. Besides, the tail end of the disc-shaped LED light source is directly connected to the radiator for radiating the disc-shaped LED light source, so that relatively good heat dissipation is guaranteed, the functional use of the front fog lamp can be guaranteed when power consumption of the front fog lamp reaches 6W, and therefore, the energy consumption of the front frog lamp is reduced, and the safe driving of the automobile is guaranteed.

The invention discloses an ad hoc network video system and an ad hoc network video system control method. The system includes a start monitoring device and at least one sub-tower monitoring device. The starting end monitoring device comprises an optical fiber access user terminal device, a first camera, a first power supply, a first programmable logic controller and a first LoRa communication module. The sub-tower monitoring equipment comprises an edge router, a second camera, a second power supply, a second programmable logic controller and a second LoRa communication module. The first programmable logic controller is electrically connected with the optical fiber access user terminal device, the first power supply and the first LoRa communication module. The second programmable logic controller is electrically connected with the edge router, the second camera, the second power supply and the second LoRa communication module. Through the first communication network and the second communication network, the cruising ability is improved on the premise of ensuring the functions of the system.

The invention belongs to the technical field of cosmetics, and relates to after-sun repair gel containing cell growth factors and a preparation method thereof. The after-sun repair gel containing cellgrowth factors is prepared from the following ingredients including cell growth factor composite lipidosome, rose fruit oil, phytic acid, herba menthae extracts, eucheuma extracts, Carbomer 940, polyglutamic acid, allantoin, propanediol, PEG-40 hydrogenated castor oil, tocopheryl acetate, bisabolol, preservatives, essence and deionized water. The after-sun repair gel containing the cell growth factors provided by the invention has the advantages that the formula is reasonable; the properties are stable; through the cooperated effect of all ingredients, the activity of the cell growth factorscan be effectively maintained; the bioavailability of the cell growth factor is improved; the water supplementation and moisture preservation effect is obvious; the effects of obviously relieving symptoms of skin erythema diffusum, red tumidness, decrustation, blisters and the like caused by sun injury and accelerating the after-sun skin restoration are achieved; meanwhile, the goal of relieving the skin blackening due to pigment decomposition can be achieved.

This invention relates to a method for treating organic wastewater. The method comprises: treating in UASB reactor, returning the digestive liquid to the wastewater not subjected to UASB reactor treatment, mixing, and sending into UASB reactor for treatment. The method can prevent the unbalance of acidification-methanation process in UASB reactor, ensure stable operation of wastewater treatment in UASB reactor, effectively adjust hydraulic load of UASB reactor, and prevent short flow effect. The treated digestive liquid can dilute high-concentration organic wastewater, and reduce the impact of wide range change of organic matter content in wastewater to UASB reactor.

The invention discloses a drilling method of reinforcing-while-drilling shale, and relates to the technical field of drilling. Based on the bionic technology, the characteristics of marine organism mussel are simulated, the bionic drilling fluid system of well wall rock can be efficiently reinforced while drilling under the underground environment conditions, the drilling fluid formula is adjusted in time in the drilling process, a firm and dense bionic shell can be formed on the well wall according to the action mechanism of bionic wall-fixing drilling fluid, and the problems of well leakage during drilling, well wall instability, wall-fixing-while-drilling, safety density window narrowness and the like are solved. The real mechanical-chemical coupling is achieved, and the well wall is kept stable and reinforced.

The invention relates to a low-water-absorption glass fiber reinforced halogen-free flame-retardant polyamide material and a preparation method thereof, and belongs to the technical field of high polymer materials. The material comprises the following components: a polyamide resin, a graft, an alkyl phenolic vulcanized resin, glass fiber, a flame retardant, a thermal stabilizing aid, a processinglubricant and silicone oil. According to the invention, a certain amount of glass fibers and a certain amount of a flame retardant are added into a polyamide resin to carry out flame retardance and reinforcement modification on the polyamide resin, so that the final material has the advantages of environmental protection, flame retardance, high strength, good temperature resistance and the like; more importantly a certain amount of an alkyl phenolic vulcanized resin and graft are added into the polyamide resin, so that the water absorption of the finally prepared glass fiber reinforced halogen-free flame-retardant polyamide material can be effectively reduced, the problems of poor dimensional stability, poor mechanical properties, poor electrical properties and the like caused by hygroscopicity are solved, and the advantages of small addition amount, high efficiency, low cost, no influence on material properties and the like are achieved; and the preparation method of the material is simple, easy to operate, low in equipment requirement and suitable for expanded production.

The invention provides a flexible guide structure of a railway vehicle emergency valve. The emergency valve comprises an emergency piston assembly, an emergency piston rod, an emergency valve seat and a sandwich valve, the emergency piston assembly, the emergency piston rod, the emergency valve seat and the sandwich valve are arranged in the valve body, one end of the emergency piston rod penetrates through a guide hole of the emergency valve seat, the sandwich valve is arranged at a valve port of the emergency valve seat, the flexible guide structure is arranged in the guide hole of the emergency valve seat and used for supporting the emergency piston rod, and the emergency piston rod makes contact with the flexible guide structure all the time in the action process, so that rigid guide of the emergency piston rod in the guide hole of the emergency valve seat is converted into flexible guide. Hard abrasion between the emergency piston rod and the emergency valve seat is avoided, the emergency braking effect that the emergency piston rod is driven by the emergency piston assembly to eject the sandwich valve open is more reliable, eccentric abrasion of the emergency piston rod is avoided, it can be guaranteed that the emergency piston rod resets after emergency braking, and the action stability of the emergency valve is improved.

The invention discloses a novel automatic bidirectional air regulating device, and provides the bidirectional air regulating device for automatic switching between a local fan and a standby local fanduring normal operation; the maintenance rate of the local fan air regulating device is reduced, and internal air leakage of the regulating device is completely eradicated. According to the followingtechnical scheme, the novel automatic bidirectional air regulating device includes a main hair dryer, a standby hair dryer, a three-links shell body, and a chimney fan, wherein an air guiding valve for switching air sources is installed in the three-links shell body; the novel automatic bidirectional air regulating device is characterized in that the three-links shell body is a Y-shaped shell body, the main hair dryer and the standby hair dryer are installed at the wider end of the three-links shell body, and the chimney fan is installed at the other end of the three-links shell body, and themain hair dryer and the standby hair dryer are respectively connected with a main air blower and a standby air blower; and the air guiding valve is installed between the main hair dryer and the standby hair dryer in the three-links shell body, and a valve baffle of the air guiding valve is installed above a valve baffle seat through an articulated shaft.

The invention discloses a household garbage can capable of achieving multi-bag assembly and automatic bag replacement. The household garbage can capable of achieving multi-bag assembly and automatic bag replacement structurally comprises a garbage can cover, a can cover assembly head, a garbage can body and a base. During use, 1, by arranging garbage bag clamping devices assembled through chutes,and limiting check blocks of the chutes, equipment can adjust the number of garbage bags assembled by the equipment by adjusting the number of the clamping devices, assembly use of the multiple garbage bags is achieved, and the limiting check blocks can prevent inconvenience and the like of garbage pouring caused by opening limiting when garbage exists by being provided with locking holes assembled with the clamping devices; and 2, the clamping devices of the equipment are provided with multi-stage limiting devices, so that only one garbage bag of the multiple garbage bags assembled by the equipment is opened at a time, the opened garbage bag is automatically closed when containing the garbage to a certain extent, assembly of the full garbage bag is removed by ejection and pressing, a nextgarbage bag is opened again, automatic bag replacement of the garbage bags is achieved, and the garbage can can ensure the functions.

The invention discloses an anti-freezing wearing layer and a maintenance construction method of an asphalt pavement. The anti-freezing wearing layer comprises special aggregate for the anti-freezing wearing layer and special emulsified asphalt for the anti-freezing wearing layer, and the special aggregate for the anti-freezing wearing layer comprises basalt, a temperature-sensitive anti-freezing agent, filler, Portland cement and water; the special emulsified asphalt for the anti-freezing wearing layer comprises petroleum matrix asphalt, an emulsifier, a modifier, an emulsified asphalt charge regulator, an emulsified asphalt viscosity regulator and water. The special aggregate for the anti-freezing wearing layer is added with the temperature-sensitive anti-freezing agent, effective components can be normally released in a low-temperature environment in winter, the release rate of the effective components in high-temperature seasons in spring, summer and autumn is greatly reduced, the effect of the anti-freezing agent is guaranteed to the maximum extent, the service life is prolonged, meanwhile, the thickness of the anti-freezing wearing layer is small, the paving cost is relatively low, and the anti-freezing rigid requirement of the pavement in the service period can be met.

The invention specifically relates to a soil contamination remediation agent, belonging to the technical field of soil contamination remediation. The soil contamination remediation agent comprises polyacrylamide, sodium polyacrylate, fly ash, phosphate rock, monosodium glutamate fermentation tail liquid, humic acid, manganese sulfate, calcium hydroxyphosphate, a microbial agent, an organic fertilizer and the like. The invention also provides a preparation method of the soil contamination remediation agent. Since mixing is performed after pretreatment operations like heat treatment of kakoxene,fermentation and sterilization of the organic fertilizer and pulverization of the monosodium glutamate fermentation liquid, the prepared soil contamination remediation agent can fully utilize domestic and industrial waste, effectively adsorb and immobilize heavy metal pollutants, improve soil environment and enhance fertility; and the soil contamination remediation agent is an economic and environment-friendly remediation technology.