170results about How to "Complete discharge" patented technology

The invention relates to a method for preparing semi aromatic copolymer nylon, belonging to the technical field of preparation materials for high temperature resistant nylon with high strength and high stability. According to the method, nylon salt is firstly synthesized, then semi aromatic copolymer nylon prepolymer is mainly synthesized at lower temperature and lower pressure, the semi aromatic copolymer nylon prepolymer is prevented from yellowing due to oxidization at high temperature in discharging so as to affect the quality, due to the requirement of lower pressure, the requirement on preparation equipment is lowered, and the production cost is greatly lowered.

The invention discloses efficient feed crushing and drying equipment. The equipment comprises a feeding hopper and a drying box; throwing plates are peripherally distributed on the inner wall of the drying box; an air heater communicates to the lower end of the left side of the drying box; a discharge pipe is arranged at the lower end of the right side of the drying box; and a valve is arranged in the discharge pipe. The equipment is provided with a crushing roller and a double-channel crushing cylinder for two-stage crushing of feeds to achieve high processing efficiency; the equipment is provided with a hot gas utilization device for efficiently using waste gas heat to improve the heat utilization; meanwhile, the bonding of the feeds in the crushing cylinder is prevented, so that the waste of raw materials is prevented; as a turntable and the throwing plates are provided for throwing the feeds into the air for hot gas drying; meanwhile, caked feed blocks are collided with the inner wall of the drying box for scattering through the turntable, so that the feed drying efficiency is improved, and the drying is more thorough; and through a scraper, the discharge is more thorough.

The invention provides a discharge method of a liquid crystal display panel. The discharge method comprises the steps that voltage at the voltage input end of a digital source is sampled so as to obtain sampling voltage, wherein the sampling voltage is not larger than the voltage at the voltage input end of the digital source and in positive correlation with the input voltage at the voltage inputend of the digital source; when the sampling voltage is lower than a reference voltage, a first grid-line cut-in voltage is output to a level switching circuit, wherein the reference voltage is higherthan the voltage of a discharge triggering signal, and the absolute value of the difference between the reference voltage and the voltage of the triggering signal is within a preset range; when the sampling voltage is higher than the reference voltage, a second grid-line cut-in voltage is output to the level switching circuit, wherein the absolute value of the first grid-line cut-in voltage is larger than that of the second grid-line cut-in voltage, and the polarity of the first grid-line cut-in voltage is same as that of the second grid-line cut-in voltage. The invention further provides a voltage regulating circuit and a display device. By means of the discharge method, the liquid crystal display panel can be quickly and thoroughly discharged in shutdown period.

The invention discloses a large-scale open compound methane tank, including a fermenting tank (1), a gas collection and storage device (2), and an air feeder (3) connected with the fermenting tank, wherein, the fermenting tank includes a plurality of independent fermenting tanks which can be communicated or disconnected mutually. The methane tank also includes the gas collection and storage device, the air feeder, a solar warming device, a charging / discharging device and an anti-encrustation device of the methane tank. When in use, as the structure of the invention is provided with a plurality of independent fermenting tanks, the air can be fed continuously in the raw material renewal process; the charging / discharging device accelerates the material charging and discharging; the gas collection and storage device of the methane tank has low construction cost, a software cover can be opened or retracted according to gas production, a gas collection and storage chamber can be changed according to the methane quantity, the pressure in the gas collection and storage chamber can not be too high, and the solar warming device increases the temperature in the methane tank so as to lead the straw material to produce the methane under the suitable temperature in winter; and a circulating pump is used for spraying the methane fluid onto the straw material through a nozzle so as to avoid encrustation.

The invention provides a method for power failure safeguard, which comprises the following steps that: before the power failure of a data transmission terminal, a power supply voltage is reduced to the rated voltage of a super capacitor; the rated voltage of the super capacitor is raised to the working voltage of the data transmission terminal to supply power for the data transmission terminal; and after the power failure of the data transmission terminal, the super capacitor discharges, and the discharge voltage of the super capacitor is raised to the working voltage of the data transmission terminal to supply power for the data transmission terminal. Thus, the data transmission terminal can work normally to transmit data information and power failure alarming information to a remote control center. The invention also provides a device for power failure safeguard. The method and the device for power failure safeguard ensure that when the power of the data transmission terminal is off, the discharge time of the super capacitor from an initial value of the full charge to the lowest value meets the working time required by the data transmission terminal after power failure, thereby providing long time normal working voltage for the data transmission terminal.

The invention provides a discharge method of a waste lithium ion battery. The waste lithium ion battery is placed in a waste lithium ion battery storage area in an insulated immersion basket, sinks into a discharge soaking tank, an organic acid salt buffer solution is put into the alkali liquor in the alkali liquor storage tank communicating with the discharge immersion tank to obtain the waste lithium ion battery discharge scouring liquid, and then the scouring liquid is pumped into a discharge immersion tank to immerse the insulated immersion basket, the waste lithium ion battery is discharged, a circulating pump respectively communicating with the discharge soaking tank and the alkaline solution storage tank is controlled, so that the alkaline solution circulates to scour the waste lithium ion battery, When the remaining electric quantity is equal to or less than the preset electric quantity, the circulating pump is closed, and the discharge scouring liquid of the waste lithium ionbattery is pumped back into the alkali storage tank, and the insulation immersion basket is lifted out of the discharge immersion tank, so that the discharge is completed. Thus, that waste lithium ionbattery can be discharged more thoroughly, the safety performance of the discharge process is better, the battery can be kept intact and not corroded, and further recycling and utilization are facilitated.

The invention discloses a building sewage anti-blocking process device. The building sewage anti-blocking process device comprises a crushing tank; the upper part of the crushing tank is provided witha water inlet; one side of the crushing tank is provided with a crushing motor; a driving shaft of the crushing motor is designed to stretch into the crushing tank; crushing knives are arranged on the driving shaft; a filtering tank is arranged under the crushing tank; a filter screen is arranged at the middle part in the filtering tank; a scraping rod is arranged on the filter screen; one side of the filtering tank is provided with an automatic push rod; one side of the automatic push rod is designed to stretch into the filtering tank, and is connected with the scraping rod, and the other side of the filtering tank is provided with a material outlet; a material collecting tank is arranged under the material outlet; the lower part of the filtering tank is connected with one end of a communicating pipe; and the other end of the communicating pipe is connected with the upper part of a water collecting tank. The automatic push rod and the scraping rod are adopted, so that impurities on the filter screen can be removed, blocking of the filter screen is avoided, and subsequent filtering is ensured.

The invention discloses a novel ventilation cabinet for a lab. The novel ventilation cabinet comprises a cabinet body, a gas concentration detector, exhaust devices and a control unit. The gas concentration detector is arranged in the cabinet body, and is used for detecting the concentration of toxic and harmless gas in the cabinet body. The exhaust devices comprise a first exhaust device, a second exhaust device and a third exhaust device. The control unit obtains the concentration of the toxic and harmless gas in the cabinet body through the gas concentration detector. Three preset concentration values are stored in the control unit, and are C1, C2 and C3. The control unit controls the first exhaust device, the second exhaust device and the third exhaust device to operate dynamically according to the relation between the detection values C of the gas concentration detector and the three preset concentration values. Furthermore, when the control unit adopts the lower-grade exhaust mode, the control unit further judges the interval values of the concentrations to judge whether a higher-grade exhaust mode is adopted or not, so that the rapid exhaust of the toxic and harmless gas in the cabinet is ensured.

The invention discloses a batch-type uniform-speed discharging stirring device. The batch-type uniform-speed discharging stirring device comprises a kettle structure formed by assembling of a shell and an upper cover, the upper cover is provided with a stirring mechanism in a connected mode, a discharging hole is formed in the lower end of the shell in a penetrating mode, the stirring mechanism iscomposed of spiral fan blades connected to the periphery of a rotating shaft and used for introducing additives, the upper end of the rotating shaft is connected with a motor in a transmission mode,and a discharging mechanism opened in a mechanical and batch-type mode is further arranged at the lower end, of the periphery of the discharging hole, of the shell in a connected mode. A constructionmethod of a self-leveling terrace comprises the following steps that a base layer is checked, pulling-drawing detecting is conducted, and the base layer is cleaned; grinding, leveling by pushing and dust suction treatment are conducted; repairing treatment is conducted on gaps and hollowing parts; coating and painting of an interfacial agent are conducted, and line snapping and area division are conducted; mixed slurry is machined by using the device, and pumping construction is conducted after testing; and still standing and solidification, coating and painting of a protective agent, divisiondismantling and filling of joint mixture are conducted. The batch-type uniform-speed discharging stirring device can be matched with division-type construction to realize equal-amount batch-type material injection, and thus the structure problem of large-area construction is solved.

The invention discloses a removable horizontal glue removing furnace for hard alloy production. One end of a furnace cradle (9) is fixedly provided a horizontal furnace tube (2); a furnace door (1), a hydrogen feeding tube (13) and a hydrogen discharging tube (3) are arranged on the horizontal furnace tube (2); a guide rail (10) is arranged on the furnace cradle (9); a horizontal furnace hearth (8) and a heat-insulating material (5) are arranged on a furnace body (4); an electric heating element is arranged in the horizontal furnace hearth (8); rollers (7) are arranged at the bottom of the furnace body (4); the furnace body (4) is arranged on a guide rail (10) through the rollers (7) and can move back and forth; and by moving the furnace body (4) back and forth on the guide rail (10), the horizontal furnace tube (2) is made to enter the horizontal furnace hearth (8) or be separated from the horizontal furnace hearth (8). The removable horizontal glue removing furnace for the hard alloy production in the invention is used for removing a forming agent, can be used for ensuring the uniformity in oxygen content and carbon content inside and outside as well as on the upper part and the lower part of a green compact, and has a long service life.

The invention discloses a liquid medicine mixing apparatus for treating soil. The liquid medicine mixing apparatus comprises a shell, a crushing cutter, a stirring plate and a driving motor; the top of the shell is communicated with a feeding hopper, and a centrifugal cylinder is arranged below the feeding hopper in the shell; and the inner wall, disposed outside the centrifugal cylinder, of the shell is uniformly provided with impact teeth. The centrifugal cylinder is used for screening large-particle impurities in the soil; meanwhile, by arranging hinged door panels, the large-particle impurities are convenient to take out; by arranging the centrifugal cylinder and the impact teeth, the hardened soil particles are easier to scatter under the effect of a centrifugal force, the subsequentcrushing is facilitated, and sufficient mixing of crushed soil and the liquid medicine is more facilitated; and the crushing cutter, the stirring plate, an atomizing spray head and a spiral blade areused for crushing and mixing the soil, the atomizing spray head enables the liquid medicine to sufficiently contact the falling soil, and the soil treatment effect is improved.

A muffler assembly for a vehicle includes a housing at least partially defining an internal cavity and having an inlet and an outlet. The muffler assembly includes an outlet pipe that has an inlet end open to the internal cavity and an outlet end open at the outlet of the housing. A siphon tube is in the internal cavity and has an inlet opening adjacent an inner surface of the housing and an outlet opening in fluid communication with the outlet pipe between the inlet end and the outlet end of the outlet pipe. The siphon tube is configured to remove condensate from the internal cavity when a predetermined pressure differential is established between the inlet opening and the outlet opening.

The invention provides a flash memory device with an abnormal power protection function. The flash memory device comprises a controller, a plurality of flash memories, a switch, a power module and a voltage detection circuit, wherein the voltage detection circuit detects system voltage and outputs an enable signal to the switch to switch on the switch when the system voltage is higher than a voltage threshold, the system voltage is supplied to the power module through the switch, the power module executes a charging procedure through the system voltage and outputs output voltage according to the system voltage, and the output voltage is taken as working voltage of the controller and the flash memories; when the system voltage is lower than the voltage threshold, the voltage detection circuit outputs a disable signal to the switch to switch off the switch, the system voltage is prohibited to be supplied to the power module, and the power module executes a discharge procedure to produce output voltage.

A puncture discharging equipment for new energy automobile lithium battery recycling comprises a puncture box, two transmission rollers are installed on the puncture box in the horizontal direction, aconveying belt is connected to the two transmission rollers, the ends of the transmission rollers penetrate out of the puncture box and are fixedly connected with first driven gears, the puncture boxis provided with a feed port above one side of the conveyor belt, the puncture box is provided with a discharge box below the other side of the conveyor belt, discharge liquid is stored in the discharge box, the inner top of the puncture box is provided with a puncture mechanism above the conveyor belt, a driving mechanism used for driving the first driven gear and the puncturing mechanism is arranged on the outer wall of the puncturing box, a temporary storage mechanism used for storing punctured batteries is arranged in the discharge box, and a material taking door is arranged on the side wall of the puncture box. According to the invention, lithium battery feeding and puncturing can be automatically and intermittently completed, full immersion discharge is realized, the operation efficiency is greatly improved, and the equipment is suitable for continuous operation.

The invention discloses cantilever type multi-layer black soldier fly breeding equipment which comprises a multi-layer conveyer belt type breeding beds, a mobile material allocation trolley, materialdischarge scraping plates, a screening belt and a monitoring self-control device, wherein the multi-layer conveyer belt type breeding beds are fixedly arranged on a cantilever support mechanism; the mobile material allocation trolley is arranged on the outer side of the cantilever support mechanism, is arranged above the multi-layer conveyer belt type breeding beds and is capable of moving horizontally along the length direction of a cantilever; the material discharge scraping plates are suspended above each layer of the multi-layer conveyer belt type breeding beds and are capable of scrapingout larvae on the surface of each layer of the multi-layer conveyer belt type breeding beds; the screening belt is arranged on the ground, is positioned at the tail parts of the multi-layer conveyer belt type breeding beds, is perpendicular to the multi-layer conveyer belt type breeding beds and is capable of receiving scraping plate discharge materials and transmission fallen materials of the multi-layer conveyer belt type breeding beds; and the monitoring self-control device is capable of monitoring and controlling process conditions and production process in a workshop. By adopting the equipment, the material feeding mode is uniform, material temperatures and humidity can be easily controlled, materials can be discharged thoroughly, and material feeding and discharge structures are simple and easy to maintain.

The invention relates to the field of battery power supplies and discloses a power supply device based on a battery pack and a discharging method thereof. In the invention, a plurality of lithium ion battery units are sequentially and circularly switched by one switch, and each lithium ion battery unit generates pulsed discharge when switched on every time, by utilizing the property that higher current can be provided by utilizing the pulsed instant discharge of lithium ion batteries, higher current can be provided for electric equipment by the same battery pack, and therefore, the utilization rate of the batteries is improved. The power supply output can be more stable by carrying out voltage stabilization to the output of the battery pack.

The invention discloses a grinding and pulping device for river snail rice noodle raw materials. The grinding and pulping device comprises a stand column, a telescopic rod, a connecting pin, a connecting rod, an auxiliary rod, a hydraulic pump, a power box, an upper abrasive disc, a lower abrasive disc, a hoop, supporting legs, a feeding inlet, a hopper, an upper grinding column, a lower grindingcolumn, a transmission rod, a stirring fan, a discharging pipe, a scraper, a servo motor, a limiting ring, a rotary shaft, a discharging tile, a connecting pipe and a material guiding port. The grinding and pulping device has the beneficial effects that through the detachable and flexible structure of the device, the abrasive discs of the device can be dismounted, the hydraulic pump is used for driving the telescopic rod to telescope, thus, the telescopic rod drives the connecting pin to move longitudinally, the distance between the upper abrasive disc and the lower abrasive disc is controlled, the upper abrasive disc and the lower abrasive disc can be separated before and after usage, the grinding columns in the abrasive discs can be cleaned and sterilized, and the hygienic security of products is ensured; and by arranging the stirring fan on the transmission rod of the lower grinding column, the stirring fan can rotary along with the lower grinding column simultaneously, and the pulping process is completed after water is fed into the feeding inlet.

The invention discloses a low-temperature drying and crushing device for horseradish tree leaves. The low-temperature drying and crushing device comprises a drying cavity and a crushing cavity; a first stirring shaft is arranged in the drying cavity; a first blade and a second blade are arranged in the first stirring shaft; ventilation holes are formed in the surface of the first stirring shaft; a rotary frame and a metal filter net are arranged on the periphery of the first stirring shaft; a sealing bearing is arranged on the left end of the first stirring shaft; a cold air fan is arranged on the left wall of the drying cavity; a material outlet, a slide chute, a slide baffle plate, a threaded rod and the crushing cavity are arranged on the lower end of the drying cavity; a second motor and a second stirring shaft are arranged on the lower end of the crushing cavity; a first crushing fan blade and a second crushing fan blade are arranged on the second stirring shaft; and an air blower is arranged on the left wall of the crushing cavity. According to the low-temperature drying and crushing device, horseradish tree leaves are driven to turn; cold air is injected into the first stirring shaft through the cold air fan, and exhausting is realized through the ventilation holes; low-temperature drying is efficiently finished; and materials are controlled to fall into the crushing cavity through the threaded rod and are subjected to multi-level crushing efficiently and thoroughly.

The invention provides a method for making holes through electric spark-electrolysis combination via matching of thread pipe electrode with inner and outer liquid flushing. At the electric spark high-speed hole making machining stage, an electric spark pulse power source is connected, the inner liquid flushing manner is adopted for leading in of deionized water, in cooperation with rotation of thethread pipe electrode, meanwhile, downward feeding is carried out, when the interpolar distance is up to the electric spark discharge gap, a pulse electric spark is generated, a workpiece material issubjected to corrosion removing, through thread rotation disturbance and upward action force of a thread groove on electric corrosion solid small particles, the electric corrosion solid small particles can be rapidly and upwards discharged, when a workpiece is subjected to breakdown, the electrode station is kept unchangeable, an electrolysis power source is connected, outer liquid flushing is replaced, an outer nozzle is aligned with the gap to spray an electrolyte, in cooperation with reverse rotation of the thread pipe electrode, the thread groove can contain more electrolyte to enter thenarrow and small gap, the workpiece has the anodic dissolution reaction, electrolytic flocs can be rapidly and downwards discharged under extrusion of the thread groove, micro hole manufacturing highprecision and high efficiency can be ensured, and the hole wall non-micro-crack and non-recast-layer machining needs can be achieved.

The invention relates to the technical field of soymilk makers, in particular to a grinding device. The grinding device comprises a motor, a moving grinding wheel and a fixed grinding wheel, wherein the moving grinding wheel and the fixed grinding wheel can rotate relatively, the moving grinding wheel is connected to the motor through a driving shaft, a running clearance is arranged between the moving grinding wheel and the fixed grinding wheel, the moving grinding wheel is in sliding connection with the driving shaft, and a plurality of blades are arranged at the bottom of the moving grinding wheel. Based on the design of the blades at the bottom of the moving grinding wheel, material is hardly blocked, and full grinding can be ensured.

The invention discloses a damp lubricating powder drying device with good universality. The damp lubricating powder drying device with the good universality comprises a feeding port cover, a processing bin, a heating rod, a supporting column, a motor, a rotating disc, a power switch, an air outlet and a discharging port, the feeding port cover is fixed right above the processing bin through a buckle, the air outlet is formed in the middle of the feeding port cover, the rotating disc is arranged at the bottom of the processing bin through a bearing, the top end of the rotating disc is connectedwith the heating rod through threads, the lower portion of the processing bin is connected with the motor through a bolt, a motor rotor is connected with the rotating disc through a transmission shaft, the processing bin is arranged on the supporting column, and the power switch is arranged on the top on the processing bin. According to the damp lubricating powder drying device with the good universality, a filtering device is arranged inside the air outlet, steam can be generated when the heating rod works, the filtering device can effectively prevent the situation that due to the fact thatthe steam flies out together with the lubricating powder, the air is polluted, a stop block is arranged on the outer side of the rotating disc so that the lubricating powder can be effectively prevented from entering the position below the rotating disc, and then the normal operation of the motor is ensured.

A separable laminated container (A) of the present invention comprises an outer layer (1) made of synthetic resin and having an air suction hole (10) and an inner layer (2) made of synthetic resin and separably laminated on the inside of the outer layer, the inner layer having a portion previously separated from the outer layer just around the air suction hole. The air suction hole can be formed by driving a punch into the outer layer at a neck (4) of the separable laminated container from the outside, and punching just the outer layer leaving the inner layer behind. The portion of the inner layer previously separated from the outer layer may be left in the inwardly extended state. The inner layer is preferably made of synthetic resin having flextural modules of less than 10,000 kg / cm2.

The invention discloses a smashing cutter type plastic needle tubing medical garbage efficient smashing device. The smashing cutter type plastic needle tubing medical garbage efficient smashing devicecomprises a base, a smashing box, a smashing motor, a smashing groove, smashing cutters, a driving motor and a material collecting groove. The smashing box is arranged on the base, a primary smashingroller is arranged in a material conveying pipe located inside the smashing box, and a ball screw is further arranged between a first sliding rod and a second sliding rod. A horizontal movement plateis further installed on the ball screw in a threaded mode, and the right side of the horizontal movement plate is further fixedly connected with the material collecting groove through bolts. The twosets of smashing cutters are cooperated to smash medical garbage, and therefore compared with a single smashing cutter, the smashing cutters have the advantage that the smashing effect can be greatlyimproved; when the smashed medical garbage is screened, left-and-right swing of the smashing groove is achieved, and therefore the speed of screening of the garbage inside the smashing groove is increased; and when discharging operation is conducted, the material collecting groove is entirely moved out of the smashing box, and therefore compared with an ordinary discharging mode, the device has the advantages that the discharging operation is more thorough, and the situation that due to the fact that garbage waste remains in the smashing box, environmental pollution is caused is effectively avoided.

A fluidizing mat has an upper, micro-perforated sheet and a lower gas impermeable sheet. The upper and lower sheets are maintained in spaced apart superimposed relationship by a plurality of spaced-apart load bearing means, e.g. encapsulated air bubbles, which define a plurality of passageways that extend in different directions over substantially the full area of the fluidizing mat and intersect with each other to form a single continuous chamber between the upper and lower sheets.

The invention relates to the technical field of printing equipment, and discloses a printing ink stirring device for printing equipment. The device includes a machine body; the middle part on the topof the machine body is fixedly connected to a first motor; an output shaft of the first motor passes through and extends to the inside of the machine body, and is fixedly connected to a fixing sleeve;the inside of the fixing sleeve sleeves a stirring shaft, and the surface of the stirring shaft is fixedly connected to stirring rods; a solar energy heat collection plate is fixedly installed on theupper surface of the machine body; a flange is fixedly connected to the top on one side of the machine body; a heating wire is fixedly connected between a supporting block and the flange; and supporting brackets are fixedly connected to the two sides at the bottom of the machine body. Through the arrangement of a discharging device, the rotation of a spiral impeller can drive the moving of a printing ink spiral, automatic discharging effects can be achieved, the effect of automatic, continuous and uniform discharging can be achieved; and the device can make the discharging more thoroughly andsave resources; and the practicality of the device can be enhanced.

The invention discloses a sealing structure for a pumping oil cylinder rod. The sealing structure comprises an oil cylinder body, a piston rod and a rod end chamber. One end of the oil cylinder body is connected with a guide sleeve, and the piston rod is sleeved with the guide sleeve. In the direction from one end, close to the rod end chamber, of the guide sleeve to the other end of the guide sleeve, a Sitefeng seal, a U-shaped sealing ring, a BA sealing ring and a dustproof ring are arranged between the guide sleeve and the piston rod in sequence, a first guide ring is arranged between the Sitefeng seal and the U-shaped sealing ring, a second guide ring is arranged between the U-shaped sealing ring and the BA sealing ring, a ring tank is arranged between the U-shaped sealing ring and the second guide ring, the ring tank is connected with a one-way valve, the ring tank is communicated with an inlet of the one-way valve, and an outlet of the one-way valve is communicated with the rod end chamber. According to the sealing structure for the pumping oil cylinder rod, trapped oil between sealing elements can be conveniently discharged in time, and the situation that trapped oil pressure is excessively high and consequently the sealing effect is affected is avoided.

Production of crystal glass is carried out by overlaying two glass plates together, baking and coating low-temperature fluxing agent. It can prevent powdery glass from dropping, lower softening point and eliminate bubble. It has better yield and quality.

The invention discloses a double-funnel type medium-pressure smoke discharging device for a laser engraving (cutting) machine, which comprises a double-funnel type fan cover with an air hole on the periphery, a dual-horn mouth air suction nozzle, a dual plugging air door, and a splayed movable cover plate. The lower end of the dual-horn mouth air suction nozzle which is positioned in the center of the whole fan cover is connected with an exhaust duct, and the other end of the exhaust duct is connected with a powerful exhaust fan. The powerful negative pressure generated by the fan is guided through the exhaust duct by the dual-horn mouth air suction nozzle; and strong negative pressure airflow is generated in the middle space of the double-funnel fan cover so as to extend towards the periphery to the edge of the fan cover, so that toxic and harmful flue gas generated during laser engraving (cutting) processing is rapidly and efficiently discharged. The double-funnel type medium-pressure smoke discharging device for the laser engraving (cutting) machine also has the advantage of convenient installation, use and maintenance.

The invention discloses a metal ceramic material, and belongs to the technical field of metal ceramic materials. The metal ceramic material comprises, by weight, 60-80 parts of a principal phase, 16-20 parts of a binding phase, 5-10 parts of carbide, 3-10 parts of an additive, 5-10 parts of whiskers and 5-10 parts of auxiliaries. SiC and / or TiC serve / serves as the whiskers, and carbon nano tubes serve as the auxiliaries. Through adding of the whiskers Sic and / or TiC and the auxiliary carbon nano tubes, the strength of the metal ceramic material is high, toughness is enhanced, and the application range of a metal ceramic cutter manufactured through a powder metallurgy manner is wide.