57results about How to "Solve explosion-proof" patented technology

The invention belongs to the field of mining hydraulic motors, and especially discloses a same-distribution-angle hydraulic cylinder motor. A technical problem to be solved is providing a same-distribution-angle hydraulic cylinder motor with the advantages of simple structure, operation convenience, high safety coefficient, long service life and effective reduction of the coal mine underground accident rate. The motor comprises a case body, three hydraulic cylinders, a crankshaft, a case body front end assembly and a control system, the whole case body is a shell structure, the three hydraulic cylinders are arranged in the case body side by side, the front end of the case body is provided with a case body semicircle seat for installing the crankshaft, the case body front end assembly is fixedly connected with the case body to fix the crankshaft, the piston terminals of the hydraulic cylinders are connected with the crankshaft through piston terminal covers, the hydraulic cylinders move back and forth to drive the crankshaft to rotate, the crankshaft drives the control system to move, and the control system controls the reciprocating motion of the three hydraulic cylinders in order to drive the crankshaft to continuously revolve. The motor adopting the hydraulic cylinders to drive the crankshaft to rotate has the advantages of low rotating speed, large torque, and suitableness for the use requirements of coal mine underground equipment.

The invention discloses a detection mechanism of a robot for detecting the corrosion of an in-service large crude oil storage tank. The detection mechanism comprises a hinged support, a support rod, adetection rod, a connection piece, and an ultrasonic thickness measuring probe. The hinged support positions the support rod and the detection rod, and the support rod and the detection rod can rotate oppositely relative to each other. The support rod is a secondary hydraulic cylinder, the first stage is a common piston cylinder, and the second stage piston rod and a spring can realize telescoping. The detection rod is a single stage and double effect hydraulic cylinder. Explosion resistance of oil gas is taken into account, and a spring wire for signal transmission is arranged in the cylinder and connected to threaded plugs on two ends of the cylinder. The tail end of the piston rod and the ultrasonic probe are connected by an elastic element to realize grounding buffer. During the process of detection, the support rod pushes out the detection rod, the detection rod penetrates the oil sludge and contacts with the bottom plate of a crude oil storage tank to measure the thickness, after measuring, the detection rod retracts, and the support rod draws back the detection rod. The provided detection mechanism can avoid barriers in the bottom of a crude oil storage tank such as heatingcoiler, and the like, can accurately measure the thickness of the bottom plate, and improves the online storage tank corrosion detection efficiency.

The present invention relates to a blowout preventer checking record device, which consists of a field data box, a remote control, and an upper computer. The field data box is embedded in the blowout preventer, and is respectively connected with the remote control and the upper computer through wireless communication. The field data box is embedded in the blowout preventer to check the work state of the blowout preventer automatically; the remote control is a hand-hold device communicating with the field data box by wireless when the operator learns the work state of the blowout preventer; the analyzing software of the upper computer and the wireless communication of the field data box read in the history data of the field data box, and analyze the safety state and the service life of the blowout preventer according to the preset requirement. The present invention has strong capacity of resisting disturbance, and can suit the severe condition of industrial locales.

The invention relates to production equipment for polyoxyethylene products and a preparation method thereof. The equipment comprises a polymerization reaction kettle, integrated equipment, a finished product mixing kettle, a solvent recycling tank, a distillation kettle, a hexane storage tank and an unqualified hexane storage tank. The production process of the polyoxyethylene products comprises the steps that ring opening polymerization is performed on ethylene oxidein C6 or C7 solvent through the action of a catalyst, exothermic reaction is performed at a certain temperature and under certain pressure, and the requirements of product specifications are achieved through the growth of polymeric chains; after the reaction is finished, the products are processed through the integrated equipment with the functions of filtering, drying and washing, and then packaging is performed. According to the production equipment for the polyoxyethylene products and the preparation method thereof, the partial implosion phenomenon caused by the reaction is avoided, the volume of the reaction kettle is successfully enlarged to 6000 litres, the production scale of a PEO device is enlarged, and the stability of the product quality is improved; the method solves the problems of solvent dehydrating and solvent recycling and reusing.

The invention provides an anti-explosive rocker switch, consisting of a control rocker, a controlled rocker in a switch core assembly and three terminals. Two ends of the control rocker are provided with control permanent magnets; two ends of the controlled rockers are also provided with controlled permanents and movable contacts respectively; the rocker range of the control rocker is more than the rocker range of the controlled rocker; the magnetic polarity of two permanent magnets at the same side of the control rocker and the controlled rocker are sucking the isomerism correspondingly to the working surface; two rockers are sucked at one pressed end of the control rocker and are separated at the other end thereof; furthermore, one group out of two groups of contacts are turned on and the other group is turned off; the three terminals are respectively connected with corresponding contacts in the switch core assembly and are connected with the external circuits outside the switch core assembly. The switch core assembly is pumped to a vacuum state and where arc distinguish gases or other protection gases are injected and the switch core assembly is sealed, thus protecting the contacts and having the advantages of anti-explosion.

The invention relates to the field of biological pharmacy, in particular to a pichia pastoris fermenting method for improving precursor expression of insulin and analogue thereof. The fermenting culture comprises the following stages of an initial growth phase, a glycerin supplementing phase and a methanol inducing phase. The method has the advantages that by controlling a formula of an initial culture medium, and the nitrogen source type and carbon source supplementing type, and continuously or semi-continuously supplementing a small amount of microorganisms or plant-source organic nitrogen sources in the middle and later period of fermenting, the fermenting cycle is extended; while the quality of the target product is guaranteed, the output is increased by not less than 30%.

The invention discloses a mining self-power-generation type inspection robot system and a control method. The mining self-power-generation type inspection robot system is composed of a drive control part and a robot body, wherein the drive control part comprises an upper computer, a wireless base station, a local control box, a frequency converter, a motor, a steel wire rope, a steel wire rope wheel, a rail, an upper limiting sensor and a lower limiting sensor; and the robot body comprises clamping wheels, a generator, a rectification protection plate, a controller, an intrinsic safety double-vision holder, a wireless communication module, a CD4, a pickup, an obstacle avoidance sensor and an RFID. The robot body is fixedly suspended on the steel wire rope, when the steel wire rope pulls the robot body to move, the robot body generates power by itself and supplies power to circuits and detection instruments in the robot body, the problems that a storage battery is prone to explode and needs to be charged frequently are solved, thus the robot system can work for a long time under a coal mine, and 24-hour unattended continuous operation inspection is achieved.

The invention discloses a scraper one-key reset device. The device comprises a scraper angle rotating air motor, a scraper lifting air motor, a scraper lifting potentiometer, a scraper angle potentiometer, a worm and gear pair and a reducer, wherein the scraper lifting air motor is connected with a scraper angle adjusting mechanism through the worm and gear pair, the scraper angle adjusting mechanism is connected with the scraper lifting potentiometer, the scraper angle rotating air motor is connected with a scraper angle rotating mechanism through the reducer, and the scraper angle rotating mechanism is connected with the scraper angle potentiometer. The device has the advantages that the device is suitable for various printing machines, by means of an air motor driving, the lifting of a scraper and the adjustment of angles can be achieved, the air motor is utilized to achieve the lifting of the scraper and the adjustment of angles, the anti-explosion problem in a printing unit anti-explosion area is solved consequently, besides, the structure is simple, the device is convenient to install and debug, the performance is stable and reliable, and the usage is convenient.

The invention discloses a mining pneumatic stepless speed change concrete agitating conveying vehicle. The mining pneumatic stepless speed change concrete agitating conveying vehicle comprises a frame (2), an agitating barrel (6) moveably arranged on the frame and a planetary reducer (5). One end of the agitating barrel (6) is connected with the planetary reducer while the other end of the agitating barrel is provided with a hopper (8). The frame is provided with a pneumatic motor (9) which is connected with the planetary reducer through a belt transmission mechanism (10). The frame is supported on a traveling mechanism (11) or an explosion-proof diesel locomotive (11). The traveling mechanism is driven by an explosion-proof traction locomotive. At first, the mining pneumatic stepless speed change concrete agitating conveying vehicle provided by the invention solves the explosion-proof problem under a shaft; second, the mining pneumatic stepless speed change concrete agitating conveying vehicle provided by the invention realizes stepless speed regulation, realizes rapid discharge by adjusting displacement at the inlet and outlet of a valve body of the pneumatic motor, meets the demand on the quantity of concrete for roadway construction, maintains continuous construction, improves the speed and the efficiency of roadway construction, and shortens the construction period; third, gas source under the shaft is abundant, electricity is replaced by wind power, and the production cost is reduced; and fourth, the mining pneumatic stepless speed change concrete agitating conveying vehicle provided by the invention can meet demands of construction of various mining roadways in the aspect of conveying way, and expands the application of the product.

The invention relates to a transducer body for mines, which mainly solves the technical problems that the traditional anti-explosion transducer has poor heating dispatching effect and overlarge size. In the invention, an upper half shell (1) and a lower half shell (2) are fixedly connected in a sealing match into a cylindrical shell with two sealed ends; both cavities of the upper half shell (1) and the lower half shell (2) are in the shape of a half slot with end plates on the two ends; an explosion-suppression joint (9) is arranged between the connecting surfaces of the upper half shell (1) and the lower half shell (2); a connection cable through hole (7) is arranged on the wall of the upper half shell (1) or the lower half shell (2); and a through hole explosion-suppression joint (8) is arranged in the connection cable through hole (7). By adopting a runner design, a power component of a transducer is installed on the inner wall of the transducer body; easy heat-transmission and high-strength material is made into a cylindrical explosion-suppression body and the external diameter of the explosion-suppression body fits that of a muffling inner cylinder of a matched ventilator, which does not influence the ventilation of a runner; and the transducer body has small size and good heat dissipation effect and is mainly applied to all transducers.

The invention belongs to the field of mining hydraulic motors, and particularly discloses a horizontal hydraulic cylinder type motor. The horizontal hydraulic cylinder type motor aims to achieve the technical purposes that the structure is simple, operation is convenient, safety coefficients are high, service life is long, and the underground coal mine accident rate can be effectively reduced. The horizontal hydraulic cylinder type motor comprises a box, three hydraulic cylinders, a crankshaft, a box front end assembly and a control system. An installing seat board is arranged at the bottom of the box, the hydraulic cylinders are arranged in the box side by side, the ends of pistons of the hydraulic cylinders are connected with the crankshaft through piston end covers, the output end of the crankshaft and the installing seat board are arranged on the same side, the hydraulic cylinders move in a reciprocating mode to drive the crankshaft to rotate, the crankshaft drives the control system to move, the control system controls reciprocating motion of the three hydraulic cylinders to drive the crankshaft to conduct continuous rotational motion, the hydraulic cylinders drive the crankshaft to rotate, the rotating speed is low, torque is large, and the horizontal hydraulic cylinder type motor meets the requirements for use of underground coal mine equipment.

The invention relates to an anti-explosive method of an electric welder, which is suitable for welding large machinery equipment on working surfaces in coal mine underground excavation. The electric welder, a contactor and other electrical equipment are arranged in an explosion-isolation outer casing to isolate explosion, a high-pressure water pump and a water tank are arranged in an outer casing without explosion isolation, and a protection control circuit is arranged in the explosion-isolation outer casing. The protection control circuit comprises the gas locking protection of anti-explosive electric welding handle clippers, flow locking protection, water pressure locking protection and electric welder over-current protection. The ends of the anti-explosive electric welding holder clippers are provided with clamping mechanisms for clamping electrodes, and are also provided with a plurality of spray nozzles. During welding, a high-pressure water curtain is sprayed out of the spray nozzles, and the arc light generated by electric welding is sealed by the water curtain.

An inserting type explosion-proof hydraulic valve group is disclosed. The invention comprises a valve body and a thread inserting electromagnetism reversing valve, and the invention is characterized in that a casing body is arranged on the valve body, a valve is arranged in the casing body, a cover is added; and an upper cover, the casing body, and the valve body are tightly fixed into a hexahedron through bolts; a plurality of installing holes of a solenoid valve are arranged on the upper surface of the valve body, and an oil inlet opening P and an oil return opening T communicated with the installing holes and hydraulic pressure oil holes A and B communicated with the controlled hydraulic mechanism are arranged in the valve body; the rectangular installing surface of the valve body, the casing body, and the upper cover edge and the leading wire mouth are respectively processed according to the explosion isolation standards. The combination surface of the upper cover and the valve body of the invention is processed according to the flatness and smoothness of the explosion isolation standards, the invention solves the explosion-proof problem, and the advantage of the inserting type solenoid valve is contained, compared with the plate type valve, the flow is greatly enhanced without leakage, the reliability of the hydraulic system is greatly enhanced, the installing space is obviously saved, and the cost is remarkably reduced.

The invention discloses a digital-analog hybrid valve-controlled hydraulic robot system. The digital-analog hybrid valve-controlled hydraulic robot system comprises a robot mechanical body, a power system and a sensor detection and control system; the robot mechanical body comprises a robot base, a robot waist part, a first joint hydraulic cylinder, a second joint hydraulic cylinder, a robot large arm part, a robot middle arm part, a third joint hydraulic cylinder, a fourth joint hydraulic cylinder, a robot small arm part, a fifth joint hydraulic cylinder, a robot wrist part, a sixth joint hydraulic cylinder and a robot tail end flange part; the power system is used for providing a power source for the robot mechanical body; and the sensor detection and control system is used for detecting the rotating angles of the six hydraulic cylinders correspondingly and controlling the six hydraulic cylinders to act correspondingly. According to the digital-analog hybrid valve-controlled hydraulic robot system, a hydraulic swing cylinder is adopted as an execution element for rotation of all joints of a six-degree-of-freedom mechanical arm, hybrid control over the rotating hydraulic cylinders is conducted through an electro-hydraulic servo valve and a high-speed switch valve at the same time, and high-precision control over the robot hydraulic system is achieved.

The invention discloses an explosion-proof aluminum ash harmless disposal method. The method comprises the following steps of: carrying out the first reaction to remove fluorine by aluminum ash powder, adding material and water for mixed pulping, discharging after fluoride detection is qualified, and adding drug B for the second reaction to remove ammonia, adding drug C to adjust pH, filter pressing and dewatering, and returning filtrate to a reservoir for recycling. The method not only separates the solid-liquid aluminum powder slurry, but also effectively solves the explosion-proof problemsof ammonia and hydrogen, etc.; in short, the explosion-proof aluminum ash harmless disposal method reacts at a room temperature without heating by a heat source, and the drug is easy to purchase, theprocessing cost is low, the explosive gas hydrogen released in the reaction is specially treated, and the method steps are safe and reliable.