90results about How to "Reduce the likelihood of fire" patented technology

A system for producing asphalt from RAP including a conveyor belt, a source of fuel, at least one infrared chamber, at least one rotary mixer, and an asphalt producing module, preferably a drum heater. The system includes measures for carefully controlling the heat of the reclaimed asphalt pavement as it is dried, including controls for adjusting the distance between the infrared chambers and the conveyor belt, controls for turning each individual infrared chamber on and off, and controls for adjusting the rate of the conveyor belt and the rotary mixers.

The invention relates to the technical field of plastic bag processing and particularly relates to a surface leveling mechanism for a plastic woven bag. The mechanism comprises a bracket. A pair of rotary shaft holes are formed in the outer wall of the bracket, U-shaped brackets are rotatably connected to the rotary shaft holes, a pair of transverse rods is fixedly connected to the side wall of the bracket, a spring is fixedly connected to the outer wall of each of the transverse rods, one end, far from each of the transverse rods, of the spring is fixedly connected to each of the U-shaped brackets, a leveling roller is rotatably arranged on each of the U-shaped brackets, the leveling roller comprises a roller, a plurality of spokes are arranged on the inner wall of the roller, a sleeve isarranged in the middle of an inner cavity of the roller, the plurality of spokes are fixedly connected to the sleeve, and the sleeve sleeves each of the U-shaped brackets. According to the surface leveling mechanism for the plastic woven bag, wrinkles of the woven bag can be prevented, so that the leveling function is achieved; meanwhile, sponge is arranged in the inner cavity of each of the leveling rollers, clean water is injected into the inner cavity of the leveling roller to eliminate part of static electricity generated by bag making, so that the probability of fires is reduced.

The invention discloses solar heat-absorbing paint which is prepared from the following components in parts by weight: 25-35 parts of an acrylate-modified composite emulsion, 2-6 parts of a fluorocarbon surfactant, 35-55 parts of a nano carbon powder and manganese dioxide mixture, 7-12 parts of a curing agent, 50-35 parts of a film forming agent, 1-3 parts of an absorption enhancer, 10-20 parts of a solvent, 5-10 parts of dispersants, and 0.5 to 0.7 part of a thickening agent, wherein the dispersants are sodium dodecyl sulfate and polyethylene glycol / polyvinyl pyrrolidone; the film forming agent is modified fibroin-gelatin; nano carbon powder is 10-20 nm in particle size, 150-180 m<2> / g in specific surface area and 90-95% in carbon content. The prepared solar heat-absorbing paint has excellent weather resistance and water resistance under the outdoor condition, the preparation process is simple and easy to understand, and the heat absorption efficiency of the heat-absorbing paint is further ensured.

The invention relates to a detergent dispenser and a washing machine. The dispenser comprises a water storage box with an opening in the front end and a drawer assembly that can pull in and out of the water storage box. The drawer assembly is provided with a detergent storage and placement region. The back end of the water storage box is integrally provided with a water inlet. The upper part of the water storage box is integrally provided with a water inlet path for connecting the water inlet and the position above the detergent storage and placement region of the drawer assembly. The water storage box comprises a water storage tank and an upper cover of the water storage tank. The back end of the upper cover of the water storage tank covers the water storage tank and extends to a back board of the box body and is overlapped with the back board of the box body and connected with the back board of the box body. The extending part of the upper cover of the water storage tank is provided with a water inlet. The detergent dispenser and the washing machine have the following beneficial effects: The overuse of multiple rubber hoses is avoided so to as avoid possibility of fire disasters.

The invention discloses a flat plate solar energy heat absorption coating. A light absorption agent, a film forming agent, a solvent and an addition agent are evenly scattered in a ball milling mode, then a film forming addition agent is added into the mixture to be mixed to be uniform, and therefore the flat plate solar energy heat absorption coating is obtained. The flat plate solar energy heat absorption coating is prepared from, by weight, 50-100 parts of the film forming agent, 10-30 parts of the film forming addition agent, 35-55 parts of the light absorption agent, 20-50 parts of the solvent and 10-30 part of the addition agent. The film forming addition agent is ethylene glycol monobutyl ether, triethylene glycol monomethyl and the like. A preparation method of the film forming agent comprises the steps that casein and gelatin are mixed according to the weight ratio of 5-10:2-3, water is added into the mixture, the mixture is soaked at the temperature of 15-22 DEG C and then transferred to a plate under the normal temperature, a mixture solution with methyl methacrylate and polysiloxane quaternary ammonium sodium with the ratio of parts by weight of 1-2:1-3, the mixture is stirred and then irradiated by ultraviolet light for 10-15 min, and then modified casein-gelatin is obtained. The film forming agent is modified and then used as the important raw material of the coating, so that the prepared coating has the good weather resistance and water resistance under the outdoor conditions, the preparation technology is simple and easy to understand, and the heat absorption efficiency of the heat absorption coating is ensured.

The invention relates to the technical field of biomass fuel boilers, discloses a biomass boiler whole-pack feeding device. By using the device, the problems of altitude difference and longitudinal and horizontal displacement, material pack deviation and material inlet seal when the whole-pack of the biomass fuel pack feeds through adopting a sedan-type feeding mechanism, a material-pushing mechanism and a feeding channel are solved. Whole-pack storage of the biomass fuel pack can be realized after being packed; when in use, the biomass fuel pack is delivered to a furnace and is directly pushed and delivered to the furnace through the biomass boiler whole-pack feeding device; the bale breaking and crushing procedures in the prior art are saved; and electric consumption for crushing is saved. The feeding device has a marvelous technical advantage, and the reliability and economic property are improved greatly; and simultaneously a cooling tempering-proof structure is arranged in the feeding device, the firing possibility for the biomass fuel pack in the process of feeding is reduced obviously, and the safety of the device is improved.

The invention relates to a safe and environment friendly kitchen range, comprising a stove and a drop type kitchen ventilator. The invention is characterized in that a front baffle board of a smoke vent on the hearth of the drop type kitchen ventilator is a flexible faceplate, a smoke outlet on the hearth is formed on the upper part of the head board; the front surface of the head board is a bare board; stratiform oil baffle plates with buttoned-down arc shapes are arranged in interlacing on the back surface of the head board and on the corresponding postnotum, namely the inner wall of the smoke vent on the hearth; the drop type kitchen ventilator comprises a wind blower, and an air outlet is respectively arranged at both sides and above the hearth; the air outlet is connected with the positive pressure pipe of the air blower; the wind direction of the air outlet points to the negative pressure zone of the smoke vent on the hearth of the drop-type kitchen ventilator from both sides of the hearth and above the hearth. The invention is dramatically characterized by safe use, health and environmental protection, and good evacuation performance of indoor oil smoke.

The invention relates to a cable protection pipe and particularly discloses a flame-retardant plastic-steel composite cable protection pipe and a preparation method thereof. The cable protection pipe is formed by an inner flame-retardant pipe and an outer flame-retardant pipe which are combined into a whole, wherein the inner flame-retardant pipe is made of flame-retardant thermoplastic plastic; the outer flame-retardant pipe is a flame-retardant glass reinforced plastic pipe. The flame-retardant plastic-steel composite cable protection pipe and the preparation method thereof have the benefits as follows: the flame-retardant plastic-steel composite cable protection pipe has the characteristics of flame redundancy, resistance to heat and cold, low shrink, high strength, high compressive capacity, high resistance to foundation settlement and great heat conductivity coefficient; not only the advantages of the glass reinforced plastic pipe are brought into play but also the defects that the inner wall of the glass reinforced plastic pipe is not wear-resisting and is susceptible to fiber scattering are overcome; a cable can easily penetrate through the cable protection pipe, so that the phenomenon that a cable is stuck is avoided; the flame retardancy effect of the cable protection pipe is good, so that the possibility of a fire is lowered, and unnecessary losses are reduced.

The present invention provides a washing machine combined with a clothes dryer. The washing machine is provided with: a casing; a tub installed in the casing; an exhaust hose installed on the outer surface of the tub; a lint filter assembly connected to the exhaust hose at one end. a pipe to remove lint from the air discharged from the tub; and an exhaust duct connected to the other end of the lint filter assembly.

The invention discloses an electric heater fault detection method. The electric heater fault detection method comprises the following steps that when an air conditioner is started to run, and a current value of an electric heater is larger than a first preset current value, a first current value of the electric heater is obtained in real time; when the first current value obtained in a first preset time interval is smaller than a second preset current value, the on-off frequency of the electric heater is updated; and when the updated on-off frequency is larger than the preset frequency, the situation that the electric heater has faults is determined, and the electric heater is turned off. The invention further discloses an electric heater fault detection device and a computer readable storage medium. The detection method and device can accurately detect whether frequent faults of starting and stopping exist in the electric heater of the air conditioner, the electric heater is turned off when the faults exist, the situation that a relay controlling the electric heater or the electric heater is damaged due to the frequent starting and stopping of electric heater is avoided, the possibility that the air conditioner fires is reduced, and the service life of the electric heater is prolonged.

The invention relates to a coating plant component (1; 2) for a suitably electrostatic rotary atomizer (10). Said coating plant component (1; 2) is a bell cup (1) or an atomizer ring (2). The coating plant component (1; 2) comprises a metal main part (1.1; 2.1) and is characterized in particular in that the metal main part (1.1; 2.1) is provided with a non-metal material (3). The invention further relates to an associated method for applying non-metal material (3) to a coating plant component (1; 2).

The invention relates to a novel square-bundling-type bundling machine and belongs to the technical field of agricultural machinery. The novel square-bundling-type bundling machine comprises a machine body, wherein a pickup, a feed chamber communicating with a pickup outlet, a driving mechanism and a hydraulic mechanism are arranged outside the machine body, a precompression chamber and a baling chamber are arranged in the machine body, crankshaft poking teeth are arranged in the precompression chamber, a compression piston is arranged in the baling chamber, a conveying chamber is arranged between the precompression chamber and the feed chamber, an outlet of the feed chamber communicates with the conveying chamber, a rotating shaft is arranged in the conveying chamber, spiral blades are mounted outside the rotating shaft, saw teeth are arranged outside the spiral blades, and a plurality of left-oblique scrapers are arranged on the sidewall of the conveying chamber. According to the bundling machine, the efficiency is high, the product density is high, the production efficiency is high, the service life is long, the scope of application is wide, and the practicability is high; and the influence on bundling ropes caused by a frictional force and material internal stress is lowered by using a buffer chamber, a first spring, a second spring, an upper turning plate, a lower turning plate and the like, which are mounted behind the baling chamber, so that the defects of the existing machine models that the power consumption is high and the bundling ropes are prone to rupture are overcome.

The invention relates to an improved grinding ball quenching tank which comprises a tank body of which the upper end is opened, wherein the tank body is provided with at least one stirring machine, and the stirring machine comprises a power assembly and a stirring assembly which are connected; and the stirring assembly extends into the tank body. After the technical scheme is adopted, the stirring machine is started, and by utilizing the stirring and homogenizing effects of the stirring machine, the temperature gradient of quenching oil in the quenching tank is effectively reduced, so that the oil temperature is uniform, the quenching effect is better, and the properties (such as the indexes of hardness, density, and the like) of a grinding ball are greatly improved; and in addition, the cooling effect of the stirring machine effectively reduces the temperature of the quenching oil in the tank body, thus the temperature of the quenching oil cannot be too high so as to ensure that the possibility of burning of the quenching oil while the grinding balls enter the tank body is greatly reduced, equipment such as an external cooling tower, and the like can be omitted, and the investment of external equipment is reduced. In conclusion, when the quenching tank is used in a quenching process of the grinding balls, the quenching tank has the advantages of uniform quenching, good quenching quality, stable properties of the grinding balls and lower quenching treatment cost.

The invention discloses a combustible gas explosion protection system of a paint storehouse, a control method of the combustible gas explosion protection system and the paint storehouse. The combustible gas explosion protection system comprises a monitoring system, a ventilating refrigeration system, an alarm system and a fire extinguishing system, wherein the monitoring system comprises a PLC, a smoke control sensor, a temperature sensor and a combustible gas concentration sensor which are respectively connected with the PLC and a window; the alarm system is connected with the PLC and the smoke control sensor respectively, and comprises a signal light and a buzzer; and the fire extinguishing system is connected with the smoke control sensor and comprises a fire extinguishing bullet arranged at the indoor top and a leakage protector for controlling a main power supply. The combustible gas explosion protection system is improved on the basis of a container type paint storehouse, and the monitoring system is used for monitoring the environment in the storehouse; and a reasonable ventilating exhaust system is designed, and the fire extinguishing system is added, so that the ventilating air exchange capacity, the heat isolation property and the exhausted gas absorption capacity of a container are improved, the possibility of occurrence of harm and pollution is effectively reduced, and the paint storage safety is improved.

The invention discloses a multifunctional logistics warehouse storage rack. The multifunctional logistics warehouse storage rack comprises a base, the two sides of the bottom of the base are both provided with rectangular openings, the inner walls of the rectangular openings are fixedly connected with fixing frames, the bottom of one side of each fixing frame is fixedly and rotationally connectedwith a corresponding first connecting rod through a movable part, the bottom of the other side of each fixing frame is rotationally connected with a wheel frame, one end of each first connecting rod is rotationally connected with a corresponding second connecting rod through the movable part, one end of each second connecting rod is rotationally connected with the corresponding wheel frame throughthe movable frame, the joint portions of the first connecting rods and the second connecting rods are rotationally connected with hydraulic pressure rods, and the invention relates to the technical field of logistics. The multifunctional logistics warehouse storage rack has functions of extinguishing fire and adjusting the storage space sizes, is provided with a walking mechanism, and can retractand stretch, not only provides convenience for the whole movement of the storage rack, but also provides convenience for fixing, the production cost is greatly reduced, and the carrying efficiency ofthe storage rack is improved.

The invention belongs to the field of designs of beam-column joints of building steel structures, and relates to a method for manufacturing flange bolting-welding hybrid connection assembly type beam-column joints. The method includes steps of computing the quantities of high-strength bolts at web plates of steel beams and determining the sizes of joint plates; computing the quantities of high-strength bolts of lower flanges of frame beams; computing the lengths of weld seams at joints of lower flanges of cantilever beams and splice plates and determining the sizes of the splice plates; manufacturing members according to computation results; hoisting the various members in place on construction sites; connecting the various members with one another by bolts. The method has the advantages that the splice plates are arranged at the lower flanges of the cantilever beams, and are used as in-place plates during site mounting, and accordingly the members can be conveniently arranged in place; the lower flanges of the cantilever beams and the lower flanges of the frame beams are connected with one another by the bolts, web plates of the cantilever beams and web plates of the frame beams are connected with one another by the bolts, upper flanges of the cantilever beams and upper flanges of the frame beams are connected with one another by butt weld seams, and accordingly the method inthe connection modes can bring convenience for mounting floors; the welding quantities are reduced, accordingly, the mounting efficiency can be improved, and the flange bolting-welding hybrid connection assembly type beam-column joints are reasonable in structure and are safe and reliable.

The invention discloses an electric vehicle charging station safety monitoring platform based on the Internet of Things and a wireless sensor, and the platform obtains the surface image damage area of each charging pile through collecting an all-round surface image of each charging pile in an electric vehicle charging station, and calculates the actual damage area of each charging pile surface. The surface temperature and the line temperature of each charging pile are detected, if the line temperature of a certain charging pile is greater than a set threshold value, the line of the charging pile is controlled to perform power-off processing, the battery remaining capacity of the electric vehicle corresponding to each charging pile is counted when the electric vehicle is not charged, and the battery predicted full charging time of the electric vehicle corresponding to each charging pile is calculated. the charging safety influence coefficient of each charging pile is calculated in an electric vehicle charging station, the actual full charging time of a battery of an electric vehicle corresponding to each charging pile is recorded, the charging safety influence coefficient of each charging pile is comprehensively calculated in the electric vehicle charging station, whether each charging pile has charging potential safety hazards is compared and analyzed, and if the charging potential safety hazards exist, early warning reminding is made, thereby ensuring the operation safety of the electric vehicle charging station.

The invention provides a partition isolation type energy storage battery box, belongs to the technical field of energy storage devices, and is used for solving the technical problems that a plurality of groups of storage batteries in an existing energy storage battery box are easily damaged at the same time, and the loss is increased. Comprising an energy storage box body, a plurality of separation grids are arranged in the energy storage box body, drawing boxes are arranged in the separation grids, storage battery packs are placed in the drawing boxes, connection mechanisms are arranged on the drawing boxes, temperature sensors are fixed to the upper surfaces of the separation grids, a controller is fixed to the end of the energy storage box body, and a moving mechanism is arranged on the side of the energy storage box body. A moving frame is connected to the moving mechanism, and a pushing mechanism and a cooling mechanism are arranged on the moving frame; according to the invention, the faulted storage battery pack and the drawing box in which the storage battery pack is located are pushed out of the separation grid, and the circuit of the storage battery pack is disconnected for isolation, so that the storage battery pack is prevented from influencing other storage battery packs which work normally, and the loss is reduced; and the pushed-out drawing box is cooled, so that the possibility of explosion and ignition of the drawing box is reduced, and the loss is further reduced.

The invention discloses an intelligent household current failure control system and belongs to the technical field of electronic technology. The control system comprises a camera, a control module, a timing module, a human face recognition module, a data storage module and a multiple-way switch, wherein the camera is connected with the control module; the control module is respectively connected with the timing module, the human face recognition module, the data storage module and the multiple-way switch; the multiple-way switch is respectively connected with a refrigerator and other electric apparatus. The control system has the benefits that the power of other electric apparatus can be automatically off, while the refrigerator is kept powered after a resident leaves home for a long time.

The invention relates to a briquette drying oven. The briquette drying oven comprises distribution ports (3) positioned at the upper part, and wind distribution plates (11) positioned below the distribution ports; and a box body (4) is defined in space between the two adjacent wind distribution plates (11). The briquette drying oven is characterized in that the box body (4) and the horizontal plane form an oblique angle of about 20-45 degrees. As the drying oven is synchronously provided with multiple distribution ports, materials are distributed more uniformly; and the box body adopts an inclined design, so that the gravity and the pressure are effectively reduced in the briquette downward moving process, the friction force is reduced, and the dust generation quantity is prominently reduced. In addition, through special structure design of wind distribution pipelines and wind distribution holes, the briquette drying strength becomes uniform and ordered. The unloading narrowing place is hoisted, so that the problem of different discharge speeds is effectively solved, and the material accumulating problem is solved. Because of solution of the dust and material accumulating problems, the firing possibility is largely reduced, and the furnace temperature design can be raised to 200 DEG C.

The invention relates to a mounting structure of a detergent dispenser. The dispenser comprises a water storage box and a drawer assembly that can pull in and out of the water storage box. The water storage box is installed at the upper part of a box body and in the structure of a long strip. The front end of the water storage box is connected with the front end of the box body. The back end of the water storage box is connected with the back end of the box body. The back end of the water storage box extends to a back board of the box body and overlap joint with the back board of the box body. The connection is reliable. Meanwhile, the extending part is integrally provided with a water inlet path and a water inlet. A water inlet pipeline of a washing machine is directly connected to the water inlet through an electromagnetic valve. Water flows into function regions of the drawer assembly through the water inlet and the water inlet path and flows through a water outlet of the water storage tank of the water storage box. The overuse of multiple rubber hoses is avoided so to as avoid possibility of fire disasters.

The invention discloses a modified casein-gelatin-containing solar energy heat absorbing coating material, wherein a light absorbing agent, a film forming agent, a solvent and an auxiliary agent are uniformly dispersed by using a ball milling method, a film forming auxiliary agent is added, and uniform mixing is performed to obtain the modified casein-gelatin-containing solar energy heat absorbing coating material, wherein the raw materials comprise, by weight, 50-100 parts of the film forming agent, 10-30 parts of the film forming auxiliary agent, 35-55 parts of the light absorbing agent, 20-50 parts of the solvent and 10-30 parts of the auxiliary agent, and the film forming agent preparation method comprises: carrying out mixing and water adding on casein and gelatin according to a weight ratio of 5-10:2-3, soaking at a temperature of 15-22 DEG C, adding a mixed liquid comprising hydroxyethyl methacrylate and polydimethylsiloxane according to a weight part ratio of 1-2:1-3, calcining for 5-10 h at a temperature of 200-300 DEG C, carrying out air jet pulverization on the calcined product, grading, calcining, and carrying out ball milling to obtain the modified casein-gelatin. According to the present invention, the film forming agent is modified so as to be the important raw materials for preparing the coating material of the present invention, such that the prepared coating material has good whether resistance and good water resistance under the outdoor condition; and the preparation process is simple and easy to understand, and the heat absorbing efficiency of the coating material can be ensured.

The invention provides an induction cooker limited-time automatic on / off electric protection device, which is based on a singlechip and a PLC and used for solving the problem that the induction cooker used in railway dining car can not automatically cut off the electricity. A transformer sends a starting work signal to the PLC, converts a transformer output signal into a sampling signal and sends the sampling signal to a main control chip; the PLC starts an internal timer to time the work time and break-time of the induction cooker; the on / off of a power supply circuit of the induction cooker is controlled by a contactor; an infrared human body induction circuit sends a no-man signal to the PLC by a rectifier circuit; the main control chip samples the instant power value of the induction cooker, accumulates the power consumption of the induction cooker; a digital quantity speech alarming signal is sent to a speech alarming circuit; the key information is written into a logic controller; function parameters are selected to be displayed on liquid crystal; and the analog speech alarming signal is sent to an alarm.

The invention relates to the technical field of thermal insulation of constructional engineering, in particular to modified floating bead calcium silicate, a preparation method thereof and a thermal insulation and decoration integrated board. The preparation method provided by the invention comprises the following steps: mixing floating beads, a surfactant, a water repellent and water to obtain a floating bead dispersion liquid; mixing the floating bead dispersion liquid with lime milk, and carrying out hydrothermal reaction to obtain xonotlite slurry; the mass ratio of the floating beads to calcium hydroxide in the lime milk is (5-20): (1-5); and mixing the xonotlite slurry and reinforced fibers, and performing compression molding to obtain the modified floating bead calcium silicate. The modified floating bead calcium silicate obtained by the preparation method provided by the invention has the pore diameter of 2-100nm, the percentage of closed pore of 90-95%, the compressive strength of 1-20MPa, the heat conductivity coefficient of 0.03-0.08 W / (m.K), the volume weight of 70-1000kg / m < 3 > and the hydrophobic rate of 85-98%.

The invention discloses a baffle and servo type manual launching multi-chamber multi-sound riot bomb. The baffle and servo type manual launching multi-chamber multi-sound riot bomb comprises a safetymechanism, an igniting mechanism, a separating mechanism, a bomb housing, an inner bomb body, a first knocking chamber, a second knocking chamber, a first detonating catalyzing chamber and a second detonating catalyzing chamber, wherein the separating mechanism is used for separating the igniting mechanism; the inner bomb body is sleeved with the bomb housing, and the inner bomb body comprises twoknocking chambers and two detonating catalyzing chambers which are arranged in a circumferential array form; the knocking chambers are used for realizing multi-point frightening; and the detonating chambers are used for realizing multi-point lacrimating and dispersing. According to the baffle and servo type manual launching multi-chamber multi-sound riot bomb, the multi-inner-chamber sequential delayed detonating design is adopted; a baffle plate is arranged between an inner chamber and the inner bomb body; an empty chamber is reserved between the inner bomb body and the bomb housing; smoke is exhausted from the sidewall of the bomb housing in a pressure releasing manner, so that the probability of fire causing is greatly reduced; sharp antipersonnel broken pieces are not produced; a triggering seat is separated in advance, so that the probability of accidental injury is greatly reduced; the multi-chamber design enables random moving; and the multi-point multi-sound detonating frightening and lacrimating effects facilitate the flexible performing of an operation method in tactical inburst.

The invention discloses a solar heat absorption material containing modified silkworm protein-gelatin. A light absorption agent, a film forming agent, a solvent and an assistant are evenly dispersed through a ball milling method, then a film forming assistant is added and evenly mixed, and the solar heat absorption material containing modified silkworm protein-gelatin is obtained. The solar heat absorption material containing modified silkworm protein-gelatin is prepared from, by weight, 50-100 parts of the film forming agent, 10-30 parts of the film forming assistant, 35-55 parts of the light absorption agent, 20-50 parts of the solvent and 10-30 parts of the assistant, wherein propylene glycol monopropyl ether or benzyl alcohol or the like serves as the film forming assistant. The preparation method of the film forming agent includes the steps that silkworm protein and gelatin are mixed according to the weight ratio of (5-10):(2-3), then mixed liquor of butyl acrylate and dimethiconol at the weight ratio of (1-2):(1-3) is added for chemical modification, then physical modification is carried out, and modified silkworm protein-gelatin is obtained. According to the solar heat absorption material, the film forming agent is modified and then serves as an important raw material for preparing the paint, so that the prepared paint has good weather resistance and waterproofness under outdoor conditions; besides, the preparation process is simple and easy to understand, and the heat absorption efficiency of the heat absorption paint can be guaranteed.

The invention relates to a coating, in particular to a solar heat absorption coating. The solar heat absorption coating is prepared from, by weight, 50-100 parts of film forming agent, 35-55 parts of light absorption agent, 10-30 parts of film forming assistant, 20-50 parts of solvent and 10-30 parts of assistant. The film forming agent is modified casein-gelatin. The solar heat absorption coating is characterized in that after the light absorption agent, the film forming agent, the solvent and the assistant are evenly dispersed through ball milling, the film forming assistant is added and evenly mixed, and then the solar heat absorption coating can be obtained. The film forming agent can be modified to serve as an important raw material for preparing the coating, the prepared coating has good weather fastness and waterproofness under the outdoor condition, the preparation process is simple and easy to understand, the heat absorption efficiency of the heat absorption coating can be guaranteed, and high promotional value is achieved.

A fire door easy to escape, comprising a fire door frame (1) and a fire door board (2) which is hingedly connected to the fire door frame (1). The two sides at the lower end of the fire door frame (1) are provided with placement blocks (3) on the ground, respectively, and the upper surfaces of the placement blocks (3) are flush with the surface of the ground; the upper surface of each placement block (3) is provided with placement grooves (32) for placing first drainage pipes (31) and first fixing pieces (33) for limiting the first drainage pipes (31) in the placement grooves (32); water pumps (34) are provided on the first drainage pipes (31), water inlets of the water pumps (34) are connected to water storage tanks (35) disposed on the fire door frame (1) and arranged in the height direction of the fire door frame (1), and a plurality of water spraying holes (311) are formed on the side of the first drainage pipes (31) facing the openings of the placement grooves (32). The fire door is able to effectively reduce fire around fire door, and escape of people is facilitated.

The invention discloses a cooling and fire extinguishing device. The cooling and fire extinguishing device comprises a shell, a first fire extinguishing assembly and a second fire extinguishing assembly, wherein the shell is used for placing a lithium battery pack, the first fire extinguishing assembly comprises a liquid conveying pipe and a spraying head communicating with the liquid conveying pipe, the liquid conveying pipe is used for circulating cooling liquid, a plurality of installing holes are formed in the outer wall face of the liquid conveying pipe in a penetrating mode, the second fire extinguishing assembly comprises a gas conveying pipe arranged in the liquid conveying pipe in a sleeve mode, the gas conveying pipe is used for circulating inert gas, and the second fire extinguishing assembly further comprises exhaust pipes which are correspondingly installed in the multiple installation holes in a sealed mode and communicate with the gas conveying pipe. The temperature of the lithium battery pack is too high, the cooling liquid of the liquid conveying pipe cools the inert gas circulating in the gas conveying pipe, the temperature of the inert gas blown to the lithium battery pack is lower, cooling of the lithium battery pack is achieved, the oxygen concentration in the shell is reduced, the possibility that the lithium battery pack is on fire is reduced, when the lithium battery pack is on fire, the spraying head sprays the cooling liquid to extinguish open fire, the high-temperature lithium battery is cooled, the open fire is found in time, fire extinguishmentis conducted, and uncontrollable fire is avoided.

The invention belongs to the field of cable trench wells, and particularly relates to a self-cooling cable trench for a communication base station. The self-cooling cable trench comprises a trench body, a cable rack and a cover plate, wherein the bottom of the trench body is provided with a drainage channel extending along the longitudinal direction of the trench body, the drainage channel is connected in series in an urban sewage discharge system, the bottom of the drainage channel is provided with a circulating box, a cooling liquid pipe is installed on the inner side wall of the trench body, the two ends of the cooling liquid pipe extend into the drainage channel and communicate with the bottom of the circulating box, a one-way liquid inlet valve and a one-way liquid outlet valve are installed at the two ends of the cooling liquid pipe correspondingly, a horizontally-arranged piston plate is connected to the inner side wall of the circulating box in a sealed and sliding mode, and awing plate is arranged above the circulating box and is fixedly connected with the piston plate through a connecting rod. According to the invention, water flow in a drainage channel can drive a wingplate to move up and down, so that circulating flow of cooling liquid is achieved, the good heat dissipation and cooling effect is achieved, energy conservation and environmental protection are achieved, and the manual maintenance cost is reduced.