65results about How to "Slow down the sinking speed" patented technology

The invention provides an emulsion stabilizer for a coconut juice beverage and a preparation method of the emulsion stabilizer, and relates to food additives. The emulsion stabilizer for a coconut juice beverage consists of the following components in percentage by mass of 10%-45% of glyceryl monostearate, 5%-25% of sucrose fatty acid esters, 1%-10% of agar, 1%-20% of xanthan gum, 10%-45% of sodium caseinate and 5%-15% of sodium tripolyphosphate. The preparation method comprises the following steps of mixing the glyceryl monostearate with the sucrose fatty acid esters, the agar, the xanthan gum, the sodium caseinate and the sodium tripolyphosphate so as to obtain the powdery emulsion stabilizer for the coconut juice beverage. The emulsion stabilizer is used for producing the coconut juicebeverage, products are free from precipitate, flocculation or floating oil within the quality guarantee period, and the quality and the mouth feel of the products are improved.

The invention provides a cleaning preparation for porcelain glazes and glass utensils. The cleaning preparation comprises solid acid, carbonate and / or hydrogen carbonate, thickener and / or stabilizer and surfactant and further comprises disinfecting agent, aromatic agent, deodorant and dispersant. By using the cleaning preparation, cleaning of various porcelain glazes and glass utensil products can be completed easily; the cleaning preparation belongs to environment-friendly products and is good in cleaning effect and safe, convenient and nontoxic to use.

The invention discloses an anti-tilt system for a ship. The anti-tilt system comprises a signal generating system, a control system, an opening mechanism and a locking mechanism which are connected in turn, wherein the locking mechanism is connected with an airbag system; and the signal generating system is an inclination sensor switch, a mechanical trigger switch or a manual switch. By the anti-tilt system for the ship, when the ship is about to be overturned, an airbag shell is opened, airbags are quickly expanded under the condition of no limitation of the airbag shell, and quickly form two large airbags on two sides of the ship body, and the buoyancy generated by the large airbags fully offsets the moment of the ship body resulting from sidesway, so that the ship body is centered and prevented from being overturned; and when the ship sinks, the large airbags can reduce the ship sinking speed to provide more time for escape of passengers.

The invention discloses an anti-sinking system of a ship. The anti-sinking system comprises a detection subsystem, a central control subsystem and an anti-sinking executive subsystem, wherein the detection subsystem consists of a gravity center deflecting angle detection device for the ship and an immersion depth detection device for the ship; the central control subsystem consists of a manual control part and an automatic control part which are parallel, and is used for processing detection information and performing executive operation on the anti-sinking executive subsystem; the anti-sinking executive subsystem consists of a pressure storing container group, an air pump group, air pipelines, air sac cabins and air bags, wherein the pressure storing container group consists of a plurality of pressure storing containers which are connected in parallel, compressed air with certain pressure is invariably maintained in the pressure storing containers, one ends of the pressure storing containers are connected with the air pump group through the air pipelines, and the other ends of the pressure storing containers are connected with the air bags in the air sac cabins. According to the anti-sinking system disclosed by the invention, the air bags are arranged so as to prevent the overturn and the sinking of the ship, the sinking speed of the ship is lowered, time of safe evacuation for people and property is bought, and the salvage difficulty is reduced.

The invention discloses a three-dimensional roof controlling method for fully mechanized caving of a steeply inclined and extremely thick coal seam. The steeply inclined and extremely thick coal seam is mined in multiple sections from back to front along the trend of the coal same, each of the mining sections is cut into multiple sub-layers from top to bottom, and the uppermost sub-layer is a top sub-layer; when any mining section is mined, the multiple sub-layers of the mining section are respectively minted from top to bottom, and the process comprises the following steps: I, mining the top sub-layer: comprising the steps of tunnel construction, extraction of toxic and harmful gas in a pre-denotation roadway, advanced pre-blasting of top coal, drainage to wet the top coal, coal mining and nitrogen injection behind a working face and ground backfill of a subsidence area; II, mining the next sub-layer; and III, repeating the step II once or multiple times till the mining processes of all sub-layers of the mining section are completed. The method disclosed by the invention is simple in step, reasonable in design, convenient to implement and good in using effect, and various protective measures are combined in use, so that the potential safety hazards such as roof caving, gob fire and the like can be effectively eliminated.

The invention discloses a steamship provided with a rollover self-rescuing system, and belongs to the technical field of steamship manufacturing. The steamship comprises a steamship body and is characterized in that the steamship rollover self-rescuing system is arranged on the steamship body; and the steamship rollover self-rescuing system comprises a plurality of air bags, winches and air bag inflating systems, wherein the air bags are arranged on the two sides of the portion, above the waterline of the steamship body, of a ship board, and the winch are used for fixing and containing the air bags. According to the steamship, the steamship rollover self-rescuing system is additionally arranged on the basis of an existing steamship, the principle that the safety air bags are rapidly inflated is used, once dangerous cases, such as sudden steamship rollover, of the steamship occur, an automatic control system can automatically control electronic valves, the winches and automatic groove opening-closing baffles to move, the air bags are rapidly inflated with air accordingly, the steamship body is supported through buoyancy generated by the air bags on the water surface, the aim of preventing the steamship body from being continuously inclined and sunken or decreasing the sinking speed is achieved accordingly, and valuable time is gained for escaping and rescuing of people.

The invention discloses a soft soil layer open caisson sinking control method. The method comprises the steps that when an open caisson sinks to a soft soil layer, sealing plates are arranged in the position, located on the soft soil layer, in holes of the open caisson, so that a plurality of confined spaces are formed by the wall of the open caisson, inner partition walls, the surface of the soft soil layer and the sealing plates, and the sinking speed and gesture of the open caisson are adjusted by adjusting the air pressures of the confined spaces. The invention further discloses a soft soil layer open caisson sinking control device. The device comprises the sealing plates which are arranged on the soft soil layer, so that the multiple confined spaces are formed by the wall of the open caisson, the inner partition walls, the surface of the soft soil layer and the sealing plates. All the sealing plates are provided with air inlets and air outlets, inflation devices which communicate with the air inlets, and deflation devices which communicate with the air outlets. The soft soil layer open caisson sinking control method and device can rapidly regulate and control the sinking gesture of the open caisson, sudden sinking of the open caisson in the deep soft soil layer is effectively prevented, and the effect that the open caisson is sunk to the preset sinking position stably and accurately is ensured.

The invention provides a hazelnut, chocolate and milk compound protein drink and belongs to the technical field of vegetable protein drinks. The drink comprises the components, by weight, of 30-80 parts of milk, 3-7 parts of white sugar, 0.2-6 parts of hazelnut sauce, 1-5 parts of grain powder, 1-3 parts of grated hazelnuts, 0.1-3 parts of cocoa powder, 0.1-2 parts of cocoa butter, 0.1-0.5 part of compound emulsification thickening agent, 0.01-0.1 part of essence and the balance of water. The invention further provides a production technology of the drink. According to the hazelnut, chocolate and milk compound protein drink, various nutritional ingredients of the milk, hazelnuts, grain powder and the like are added, so that the milk protein and the hazelnut protein are reasonably matched, dietary fiber is added, the product stability problem can be solved by adding small amount of emulsification thickening agent, the technology is suitable for current vegetable protein general technologies, and the requirement of stable product shelf life under different packages is met.

The invention relates to an emergency floating device for a vehicle. The emergency floating device comprises a shell, a manual bracing wire ring, a button switch, a valve, an electrolyte water level sensor, a bracing wire, a control circuit, an electromagnet, a valve lever, a connecting shaft, a compressed air bottle, a foldable airbag and a floating tank. The emergency floating device can be mounted on various vehicles; the emergency floating device does not occupy much more volume or weight at ordinary times, but the airbag can be popped up at the emergency moment of the vehicle falling into water. The emergency floating device provided by the invention has three starting modes; the emergency floating device can be automatically started after encountering with water and can be manually started, so that the practicability of the emergency floating device is guaranteed, and the reliability of the device is greatly promoted; the vehicle can float on the water surface, so that passengers can be prevented from being drowned; and the cost is low, the structure is simple, and the safety performance of various vehicles can be greatly promoted.

The present invention relates to process and apparatus for preparing monotectic crystal alloy without segregation, and belongs to the field of homogeneous monotectic crystal alloy preparing technology. The present invention features that the segregation of the second phase in alloy is inhibited by means of the cooperation of steady strong magnetic field and alternate current so as to obtain monotectic crystal alloy with homogeneously distributed second phase. The process of the present invention includes the following steps: heating binary alloy with monotectic crystal component inside a crucible by means of alternate current inside a strong magnetic field a superconductive magnet generates under the protection of inert gas at temperature over the liquid temperature for several hours, and lowering the temperature in controlled speed while applying AC in proper intensity and frequency to below the solid temperature, and further cooling to room temperature to obtain the monotectic crystal alloy.

The invention belongs to the light, insulation building field, in particular to an environment-friendly, light and window-forming composite insulating wall and a corresponding mounting method thereof. The wall comprises four pieces of EPS boards which can be mutually connected by bosses and depressed grooves; holes containing steel columns are arranged on the EPS boards; the steel columns are arranged in the depressed grooves which are mutually communicated; a pre-embedded insulation part is respectively arranged at one side, close to the window, of the left and the right EPS boards; and a fireproof insulation layer, a fireproof insulation film and an anti-impact board are sequentially fixedly connected with the outer surface of the EPS board. The method comprises the following steps: the steel columns are pre-embedded and ground beams are mounted; the matching between the bosses and depressed grooves on the EPS boards is adopted to connect and mount the EPS boards; the mounting method of the EPS boards of other layers besides the first layer is based on the mounting method of the first layer; the steel beams are mounted and bundled and then the fireproof insulation layer, the fireproof insulation film and the anti-impact board are sequentially and fixedly connected with the outer surface of the EPS board; the concrete is cast; and after the first layer is completed, the other layers are mounted according to the mounting method of the first layer. The invention is characterized in that the wall is environment-friendly and light; the insulation effect is good; and the mounting speed is fast, etc.

The invention discloses a buoyancy airbag system and a car, and relates to the technical field of car safety. The buoyancy airbag system is designed for solving the problem that the car suspension buoyancy is limited and comprises a main buoyancy unit and first filling unit. The first filling unit is arranged in a trunk and comprises a first filling airbag, a first filling device used for filling the first filling airbag, and a first filling check valve arranged between the first filling device and the first filling airbag. The control end of the first filling device is electrically connected with a first control module. The first control module is electrically connected with a first induction unit. The first control module is arranged on a car body. The first induction unit is arranged on a chassis. The main buoyancy unit is electrically connected with the first control module. The car comprises the buoyancy airbag system. The buoyancy airbag system provided by the invention is used for achieving passive safety protection when the car falls into water.

The invention discloses a splash-proof preparation which comprises solid acid, carbonate and / or bicarbonate, and a thickening agent and / or a foam stabilizer, and particularly comprises the following components in parts by weight: 5-65 parts of solid acid, 15-50 parts of carbonate, 15-50 parts of bicarbonate, 2-70 parts of a thickening agent and 2-60 parts of a foam stabilizer. The splash-proof preparation is a formed body of any shape. The formed body of any shape is an expanded body, or the formed body of any shape is a granular body and / or a blocky body and / or a flaky body and / or a shell body and / or a cartoon body. The splash-proof preparation can be completely dissolved into water seal, the situation that people are choked by a part of powder flying in air can be avoided, the situation that a part of powder is adhered to a closestool wall above the water seal can be also prevented, and great convenience can be brought to closestool cleaning. A foam layer thicker than 2cm can be generated, and a great splash-proof effect can be achieved. Formed products of multiple splash-proof preparations can be produced according to different demands of customers.

The invention discloses a conductive agent used for a lithium iron phosphate battery, and also discloses a preparation method for the conductive agent. The conductive agent consists of a carbon nanotube / carbon black composite material, graphene and a bonding agent in the weight ratio of 1:(0.001-0.1):(0.01-1). The preparation method comprises the following steps of: first, preprocessing the carbon nanotube / carbon black composite material; then, performing ultrasonic dispersion on the carbon nanotube / carbon black composite material and the bonding agent in secondary distilled water; next, adding the graphene into the secondary distilled water under the condition of ultrasonic waves; and finally, performing the ultrasonic dispersion to prepare the conductive agent. The preparation method for the conductive agent is simple; and the prepared conductive agent has uniform dispersion and high stability. The conductive agent has high electronic conductivity and uniform heat conduction; and the lithium iron phosphate battery prepared by adopting the conductive agent has remarkably improved electrochemical performance and obviously reduced alternating-current internal resistance.

The invention discloses a crystallizer for an MVR (Mechanical Vapor Recompression) sewage treatment system. According to the crystallizer, the problems that an inlet solution is not uniformly dispersed, a steam outlet channel has small clearance, great resistance drop, easiness in blockage and poor separation effect, as well as a crystalloid in a container easily enters a connected pipeline, so that the service life of a pump in the connected pipeline is shortened in the prior art are solved. The crystallizer is characterized in that guide diverters are welded at an interface positions of theinner wall of a cylinder body and solution inlet pipes; a multichannel folded plate type demisting device is arranged in an upper cone; sprayers on an upper layer and a lower layer are arranged on themultichannel folded plate type demisting device; outlet grids are welded at an solution outlet; multifunctional grids are also arranged in a lower cone. The crystallizer has the beneficial effects that the inlet solution is uniformly distributed, the vapor-liquid separating efficiency of a steam outlet is high, and a crystal mush solution in a salt leg is uniformly distributed, so that vortex formed in the sinking process of the crystal mush solution can be prevented and a crystallizing effect is improved; the crystalloid in the container can be prevented from entering the connected pipelineat the solution outlet, and the service life of a circulating pump in the connected pipeline is prolonged.

The invention discloses an underground coal mine fully mechanized mining face end mining and rapid withdrawing method. The method comprises the steps of S1, arrangement of a fully mechanized mining face; S2, end mining protection; and S3, quick withdrawing of the fully mechanized mining face. According to the method, protective measures and fully mechanized face withdrawing operation during roadway withdrawing and fully mechanized face end mining are optimally designed, the tunneling and supporting cost of an auxiliary withdrawing channel is reduced, the sinking speed of a top plate of the withdrawing channel is remarkably reduced, the floor heaving amount of the roadway is remarkably reduced, the labor intensity is reduced, the withdrawing time is shortened, the safety performance is improved, and the auxiliary withdrawing channel can be reused for the second time, so that the environment-friendly emission of solid waste is realized, and the emission cost of the solid waste is reduced.

The present invention relates to process and apparatus for preparing monotectic crystal alloy without segregation, and belongs to the field of homogeneous monotectic crystal alloy preparing technology. The present invention features that the segregation of the second phase in alloy is inhibited by means of the cooperation of steady strong magnetic field and alternate current so as to obtain monotectic crystal alloy with homogeneously distributed second phase. The process of the present invention includes the following steps: heating binary alloy with monotectic crystal component inside a crucible by means of alternate current inside a strong magnetic field a superconductive magnet generates under the protection of inert gas at temperature over the liquid temperature for several hours, andlowering the temperature in controlled speed while applying AC in proper intensity and frequency to below the solid temperature, and further cooling to room temperature to obtain the monotectic crystal alloy.

The invention discloses a bismuth-containing oriented silicon steel smelting method enabling the bismuth yield to be not lower than 70%. The method comprises the following steps of, smelting in a conventional converter and tapping into a steel ladle; carrying out RH refining treatment, wherein, the thickness of a slag layer is controlled to be not lower than 45 mm, the slag comprises 25-35 wt% of Al2O3, 40-50 wt% of CaO and 10-15 wt% of MgO, and the temperature of molten steel is controlled to be 1530-1590 DEG C at the end; carrying out sedation after the vacuum refining is finished; adding a bismuth particles and limestone particles mixed container into the molten steel; and protecting casting and post-process production. According to the method, bismuth particles and limestone particles are mixed and added, gas generated by decomposition of limestone in the molten steel can slow down the sinking speed of the bismuth particles, bismuth can be rapidly and uniformly diffused, more importantly, diffusion of the bismuth particles in the molten steel can be strengthened, and finally the ideal effect that the bismuth yield is higher than 70%, specifically 71-75% can be achieved.

The invention discloses a ship anti-sinking system, comprising a detection subsystem, a central control subsystem and an anti-sinking execution subsystem. The detection subsystem is composed of a ship gravity center deviation angle detection device and a draft depth detection device. The control subsystem is composed of two parts: manual control and automatic control. It is responsible for the processing of detection information and the execution of the anti-sinking execution subsystem. The pressure storage container unit is composed of several pressure storage containers in parallel. The compressed air of a certain pressure is always maintained in the pressure storage container, and through the air pipeline, one end is connected with the air pump unit, and the other end is connected with each air bag The airbags in the warehouse are connected, and the invention uses the airbags to prevent capsizing and sinking of the ship, slow down the sinking speed of the ship, buy time for the safe evacuation of personnel and property, and reduce the difficulty of salvage.

A steamship with backup floating assisting air bags is characterized in that a U-shaped groove concaved towards the interior of a steamship body is formed in the periphery of a ship rail (10) below a deck (3) above a waterline (2) of the steamship; the backup unaerated air bags are arranged in the groove, fixing ropes are arranged on the parts, one forth and three fourths of the length of the air bags, in the groove to be connected with the ship rail, air hoses are arranged in the middles of the air bags and are connected with a compressed air tank in the steamship through control valves, a groove cover plate flush with the ship rail is arranged in an opening of the groove, a rotating shaft is arranged on the lower portion of the cover plate and is connected with the ship rail, and magnets are arranged on the upper portion of the cover plate and attract to the ship rail. When the steamship strikes a reef, collides and inclines and sinks when water enters a cabin, the cover plate of the U-shaped groove can be opened fast, the floating assisting air bags on the inclining and sinking side are released and fast aerated to generate buoyance so as to prevent the side from sinking continually, when the whole steamship sinks, all the backup floating assisting air bags on the periphery of the ship rail of the steamship can be fast released and fast aerated to generate buoyance so as to prevent the whole steamship from sinking continually or slow down the sinking speed, and escaping time and rescuing time are gained.

The invention provides a marine riser and an offshore drilling system. The marine riser comprises a first pipe and buoyancy pipes tied to the outer circumferential face of the first pipe and provided with closed inner cavities. The inner cavities of the buoyancy pipes are filled with gas. The gas pressure in the buoyancy pipes is not smaller than the barometric pressure. Compared with an oil filling mode in the prior art, energy is saved.

The invention discloses an automatic bait scattering device for intelligent agriculture, which comprises a floating base and a bait scattering machine, a fixing groove is formed in the upper end of the floating base, the bait scattering machine is installed in the fixing groove, blades are stabilized on the lower end surface of the floating base, a bait bin is arranged at the lower end of the bait scattering machine, a pushing plate is slidably connected into the bait bin, a partition plate is arranged on the side end surface of the bait bin, a first motor is arranged at the lower end of the partition plate, a feeding port is formed in the upper end surface of the bait bin, the upper end surface of the bait bin is rotationally connected with a bait scattering rotary disc, a grain cutting device is arranged on the upper end face of the bait bin, a second motor is arranged on the upper end face of the bait bin, and the second motor is connected with the bait scattering rotary disc in an engaged mode through a gear. Through top rotary discharging, bait is scattered to the periphery of equipment through centrifugal force, an annular bait scattering ring is formed, the bait scattering range is widened, the bait scattering area is far away from the bait scattering equipment, and the situation that the bait scattering equipment interferes with fish schools and affects feeding of the fish schools is avoided.

The invention provides a modification and refinement method of hypoeutectic aluminum-silicon alloy, which comprises the steps of S1, smelting A356 aluminum alloy, and controlling the components of thealloy liquid within a standard range, wherein the content of Ti is less than 10ppm; and S2, performing modification treatment to ensure that the content of Sr in the alloy melt is 100-250ppm, the content of B in the alloy melt is 100-200ppm, and the mass ratio of Sr to B is 1-2. According to the modification and refinement method of hypoeutectic aluminum-silicon alloy, the treated A356 aluminum alloy melt contains a very small amount of Ti (less than 10ppm), so that the Ti-Si binary alloy phase formed by reaction of Ti and Si elements can be prevented from contaminating the melt and reducingthe refinement effect on the one hand; and on the other hand, a Ti-containing refiner does not need to be additionally added, so that the cost can be reduced to a certain extent.

The invention relates to a vehicle underwater escape device and a vehicle. The vehicle underwater escape device comprises a base, an escape cabin, an air pump and an escape door, wherein the base is used for being installed on the inner side of an opening of a vehicle ceiling, and the base is provide with an inlet for allowing an occupant to enter that escape cabin; the escape door is arranged atthe inlet of the base and is used for opening or closing the inlet, and the escape cabin is configured to be a compression air bag structure and is detachably arranged on the base; and the air pump isarranged on the base and is used for inflating the escape cabin so as to expand the escape cabin towards the outside of the vehicle. According to the vehicle underwater escape device, the space inside and outside the vehicle can be separated by the escape cabin and the base, water can be prevented from rushing into the vehicle, the survival and escape time of the occupant can be increased, and the escape probability can be greatly improved.

The invention discloses a ship anti-capsizing system. The ship anti-capsizing system comprises a signal generating system, a control system, an opening mechanism and a locking mechanism which are sequentially connected, and the locking mechanism is connected with an airbag system. The signal generating system is a tilting angle sensor switch, a mechanical trigger switch or a manual switch. According to the ship anti-capsizing system, when a ship is about to capsize, the signal system sends a signal, the locking mechanism is controlled to be opened through the control system, at this time, under action of pressure gas in airbags, an airbag shell is opened, the airbags expand rapidly in the case of no constraining of the airbag shell, the two large airbags are quickly formed on the two sidesof a hull, buoyancy force produced by the large airbags can fully counteract the side capsizing moment of the hull, and the hull is righted to prevent the ship from capsizing. When the ship sinks, the airbags can also slow down the sinking speed of the ship, and more time is won for escape of passengers.

The invention discloses a high-yield intensive culture method for river crabs. The high-yield intensive culture method for river crabs comprises the following steps of selection of a pond, treatment of the pond, selection of juvenile crabs, feeding, management of feed, other management and the like. By the intensive culture method, the yield of the river crabs is improved, the specification is further increased, the number of male and female river crabs with the average weight equal to or above 150 g accounts for 60-70%, and therefore, the economic benefit of cultivation is increased.

The invention provides a method for manufacturing gum dipping safety protection gloves. The method includes steps of (1), utilizing all chemical fibers or yarns interwoven by chemical fibers and cotton and weaving the all chemical fibers or yarns into a glove blank in a knitting manner; (2), dipping the knitted glove blank into methanol added with calcium nitrate by 5% to 10%; (3), dipping the glove blank into rubber latex to prepare a gum dipping safety protection glove; (4), drying; and (5), cooling. In the method, chemical fiber materials are used for replacing traditional cotton materials, advanced process is adopted, and production cost is reduced.

The invention provides a marine safety airbag system. The marine safety airbag system comprises a guide rail cylinder, a high-strength spring, an ejection rod, an annular electromagnet, safety airbagequipment and a control system. When the ship body tilts to a large extent due to emergencies such as contact reef water leakage, storm influence and the like, the electromagnet is powered off, and the ejection rod instantly ejects to the upper side of the water surface under the action of restoring force of the high-strength spring. At the same time, a sodium azide layer in the safety airbag assembly arranged in the ejection rod is immediately subjected to gas explosion, nitrogen generated by chemical reaction is immediately inflated to the folding airbag after passing through the filter layer, and the airbag is instantaneously inflated and floats on the water surface. When the ejection rod is ejected out, the spring metal bar connector which is originally compressed is ejected out, and the ejection rod is prevented from moving towards the direction of the high-strength spring. The safety airbag system for the ship can stabilize the ship body in time, increase the buoyancy of the shipbody, reduce the sinking speed and even prevent the ship body from sinking, and is very worthy of application and popularization in actual life.

The invention discloses a control method used for a while-drilling tube following pile machine. The method comprises the steps of S1, finishing mounting and debugging of an automatic control system; S2, inputting condition threshold values used for controlling an output shaft of a drilling rod power box, a speed reduction device and a shock excitation driving unit to be started and stopped into acentral processing unit; S3, adjusting an adjusting oil cylinder to enable the length of a telescopic spring to be within the length upper threshold value and length lower threshold range, and starting a drilling rod for carrying out construction; S4, in the constructing process, carrying out real-time monitoring on the length of the telescopic spring, and comparing the actually measured length ofthe telescopic spring with the preset threshold value; and S5, when a comparison value is abnormal, taking processing measures in time, and ensuring normal operation of the construction. Time lay ofmanual operation and dependency on technical levels of an engineer can be overcome, the development tendency of the building industrialization can be met, the bearing property difference between pipefile foundation units after construction is finished is small, precise design of a building foundation and a structure is facilitated, and the later-period detection and maintaining are facilitated.

The invention discloses a ground jetting type jet apparatus used for a water curtain partition in a tunnel fire hazard. The ground jetting type jet apparatus comprises a high pressure water source access port and a high pressure atomizing sprayer 1, the ground jetting type jet apparatus further comprises a sprayer installation component and a sprayer protection component, the sprayer protection component can be installed in front of the spraying direction of the sprayer on the sprayer installation component, and the sprayer protection component is used for preventing against the mechanical impact and / or blockage of the sprayer by a destroying article in front of the spraying direction of the sprayer. The ground jetting type jet apparatus has the beneficial effects that the ground jetting type jet apparatus used for the water curtain partition in the tunnel fire hazard provides a fire control scheme for the fire hazard in the space of a tunnel, and solves the problems of controlling fire source isolation and fire spreading in case of the fire in the special environments like the tunnel. Compared with the top jetting type structure, the water curtain partition formed by the ground jetting structure is more even and denser, the thermal insulation effect is good, the provided ground jetting sprayer protection structure effectively protects the sprayer, and the durability and the stability of equipment are guaranteed.