121results about How to "Prevent blasting" patented technology

The invention discloses an underwater buoyancy adjusting device which comprises a sealing shell, a gasbag, a control module, an exhaust module and an inflation module. The gasbag is arranged outside the sealing shell, and the control module, the exhaust module and the inflation module are arranged inside the sealing shell. The inflation module is connected with the gasbag through an inflation pipesealing cabin penetrating piece, and an exhaust pipeline of the exhaust module communicates with an inflation pipeline of the inflation module. According to the underwater buoyancy adjusting device,a high-pressure pneumatic buoyancy system is adopted, a high-pressure gas source is adopted as buoyancy adjusting driving force, compared with a traditional buoyancy adjusting system, the weight is low, the maintaining cost is low, rapid replacement can be achieved, the weights of loads are reduced, and lightweight design of amphibious aircrafts is facilitated; and by arranging a safety valve, thesituation that under the condition that a controller breaks down or the large measuring error is generated by a gas pressure sensor inside the gasbag, superscalar excess gas is automatically releasedto the annular gasbag and thus gasbag blasting is caused is avoided.

The invention relates to a full-automatic sterilizing quality-guaranteeing steamer and a sterilizing technology which are suitable for sterilizing and quality guaranteeing of fully closed box-packed fast food. The steamer comprises a pot body, a pot cover, a steam pipe, a return water storage tank, a vent pipe, a water cycle pipeline and a drain pipe, wherein the water cycle pipeline comprises a return water pipe, a chief spray pipe, a water inlet pipe and a water outlet pipe, the pot body is provided with a thermometer I, a pressure gauge I, a water-thermometer I and a reducing valve I, and is connected with an automatic control box, the pot cover is hermetically connected with the pot body, the pot body is connected with the steam pipe, the vent pipe, the chief spray pipe and the water outlet pipe, the return water storage tank is connected with the return water pipe and the vent pipe, the drain pipe is communicated with the water outlet pipe, the inner cavity of the pot body comprises a temperature control sensor, a water outlet hole, a steam heating pipe, an upper spray pipe and a side spray pipe, and the upper spray pipe and the side spray pipe are communicated with the chief spray pipe. The steamer can be used for automatically and accurately controlling the temperature, pressure and time, guaranteeing the sterilizing quality through heating and cooling by gradient, and saving energy and water because the hot and cold spray water is used and stored reasonably.

The invention discloses a fire extinguisher based on an airbag-driven normal-pressure liquid fire-extinguishing agent. The fire extinguisher comprises a liquid storage tank (2) and a controller (8), wherein a nozzle (1) is arranged at the top end of the liquid storage tank (2). A piston (4) is arranged in the liquid storage tank (2). The part, above the piston (4), in the liquid storage tank (2) is filled with the fire-extinguishing agent (3). An airbag (5) and a gas generator (6) are integrated in the part, below the piston (4), in the liquid storage tank (2). The gas generator (6) is arranged inside the airbag (5) and connected with the controller (8) arranged outside the liquid storage tank (2) through a control wiring harness (7). The fire extinguisher has the beneficial effects that the structure of a fire extinguishing system is simplified, the total weight of the system is lowered, cost is reduced, the mounting space is reduced, and mounting is convenient.

The invention provides pulping equipment based on air blasting energy and with a secondary repulping function. The pulping equipment mainly comprises a coarse pulp generating device, a bubble generating device, a bubble heating device and a fine pulp generating device. The pulping equipment is characterized in that air blasting energy is used for repulping and secondary fine repulping. Repulping through the air blasting energy is achieved through the bubble generating device and the bubble heating device; multi-area blasting repulping is achieved through upper and lower exhaust rings; scallop tubes are used for guiding bubble diversion, so that the upper and lower exhaust rings are protected; Y-shaped filters are used for screening and filtering crushed materials; the coarse pulp generating device is used for generating coarse pulp; and the fine pulp generating device is used for achieving fine repulping.

The invention discloses a high-temperature high-pressure vacuumizing test device and an operating method thereof. The high-temperature high-pressure vacuumizing test device comprises a vessel holder (3), a console (4), a stander (1) for installing the vessel holder (3) and the console (4) and an interface (2), wherein a test vessel (6) which is used for arranging a test sample (5) and provided with a sealing cover is arranged in the vessel holder (3), and the high-temperature high-pressure vacuumizing test device also comprises a pressure system, a temperature system and a vacuum pump (8); the pressure system is arranged in the console (4), and the pressure system is communicated with the test vessel (6) to adjust the pressure value in the test vessel (6); the temperature system consists of a part which is arranged in the console (4) and a part which is arranged in an inner cavity of the test vessel (6), and the two parts of the temperature system are communicated with each other to adjust the temperature value in the test vessel (6); the vacuum pump (9) is arranged on the stander. The high-temperature high-pressure vacuumizing test device integrates the temperature system, the pressure system and the vacuumizing system.

The invention discloses a poisonous gas leakage monitoring and alarming protection air bag device for the chemical industry. The poisonous gas leakage monitoring and alarming protection air bag device comprises an air bag and a poisonous gas alarm, wherein the air bag is arranged at the installation position of a chemical equipment port, and wraps and clings to the whole installation position of the chemical equipment port; and the poisonous gas detector is arranged in the air bag for detection when poisonous gas is leaked and is filled in the air bag. If gas leakage occurs, the air bag is expanded instantly so that people can timely discover that the poisonous gas is leaked and can store the poisonous gas timely so that the poisonous gas is not leaked in the air. The air bag can be made of transparent materials so that the state of using parts can be observed without obstruction; the air bag has no influence on normal installation of the chemical equipment port and has substantiality in usage; the poisonous gas detector can detect the poisonous gas and alarm, and can display the detection process and result in a perceptual intuition mode; and the poisonous gas alarm can timely alarm and notify an operator about other gas leakage situations so as to realize processing and maintenance timely.

The invention discloses a medium-deep hole blasting suspended top treatment method in a sublevel caving method. The medium-deep hole blasting suspended top treatment method comprises the following steps that first encrypted blast holes are additionally perforated between two rows of normal blast holes close to the suspended top area, second encrypted blast holes are additionally perforated in theouter sides of the two rows of normal blast holes, and the first encrypted blast holes and the second encrypted blast holes are then exploded together through blast holes in a rear-section normal blast hole row. The medium-deep hole blasting suspended top treatment method has the advantages that the operation process is simple, safe, efficient and reliable, under the condition that the normal sidecaving row blasting is not affected, only a small amount of vertical holes need to be additionally perforated to serve as the encryption blast holes, then the suspended top problem can be solved, a series of processes of new digging projects and high-difficulty construction hole sites are reduced, the phenomenon that the construction period is prolonged due to the suspended top is effectively shortened, the operation technology is simple, the requirement for the hole position of the encrypted blast holes is low, and the method is easy to popularize and apply.

The invention discloses a device for reducing and preventing hydrostatic extrusion breakdown blast-firing damages, which belongs to the technical field of extrusion processing, an extrusion cap is placed in an extrusion cylinder, the extrusion cap and a blank are in tight fit and assembly, a seal ring is arranged at the front section of the extrusion cap, a liquid channel is arranged on the outer circle of the extrusion cap, a damping hole is arranged at the bottom of the extrusion cap, extrusion liquid is filled between an extrusion rod and a mold, and the blank is extruded for obtaining a finished product. The extrusion cap moves along with the blank during the extrusion process, and the extrusion liquid can fill the whole extrusion cylinder through the liquid channel; when the extrusion is close to the end, the seal ring at the front section of the extrusion cap is in contact with the upper end surface of the mold for playing the sealing role, and then the extrusion liquid can only impose the pressure to the blank through the damping hole of the extrusion cap, thereby achieving the purpose of reducing the speed of the blank. The adoption of the device can effectively reduce and prevent the hydrostatic extrusion breakdown blast-firing damages.

In a driving circuit and method for preventing a lamp from blasting, a driving circuit includes a control circuit module, a voltage conversion circuit module, a driving module and a feedback circuit. The control circuit module outputs a first control signal according to a predetermined setting. The voltage conversion circuit module receives the first control signal and converts the first control signal into a second control signal. The driving module receives the second control signal and generates a driving signal according to the second control signal for driving the lamp. The feedback circuit electrically couples to one of the control circuit module, the voltage conversion circuit module and the driving module for receiving a feedback signal therefrom. The feedback signal is transmitted to the control circuit module, so that the control circuit module may adjust the first control signal according to the feedback signal.

The invention belongs to the technical field of automobile arc plate machining and mounting and relates to a tool clamp for clamping an irregular arc plate of an automobile and a method. The tool clamp comprises a clamping base, a pressure-bearing air bag is arranged in a gap between a pair of clamping tables which are in bilateral symmetry, the lower end of the pressure-bearing air bag is communicated with a pair of buffering air bags which are in bilateral symmetry through a three-way pipe, the outer wall of the middle section of the pressure-bearing air bag is connected with an annular limiting ring in an extruding and clamping mode, the upper end of the pressure-bearing air bag is provided with a plurality of sets of pressing strips which are linearly distributed, the upper ends of the buffering air bags are provided with pressing plates which perform pressing downwards, and the upper ends of the pressing strips are connected with reinforcing strips with storage grooves in an inserted mode. According to the tool clamp, through the cooperation of a pulling rope and a hanging ring, the bottom of the pressure-bearing air bag is adjusted; and the pressing strips are used for supporting a workpiece, a machining position is limited through the insertion cooperation of the pressing strips and the reinforcing strips, so that the air bag is prevented from being affected by a cutter or machining chippings, and meanwhile unified recycling of the machining chippings is achieved.

The invention discloses a crab-claw type filling device for filling slag into mine blast holes. The crab-claw type filling device is characterized in that a scraping plate device is arranged at the front part of a driving vehicle; a blast-hole-filling auxiliary protecting device is arranged in the slag-filled blast holes; the scraping plate device consists of a support fixed at the front of the driving vehicle and a double-arm crab-claw type scraping plate hinged with the middle part of the support and connected with a hydraulic driving system; the double-arm crab-claw type scraping plate is formed by hinging two symmetrical crab-claw scraping plates; crushing jaws are arranged at the front parts of the crab-claw scraping plates; a forehead opening of each crushing jaw is provided with a group of meshing teeth III; the middle and the tail of each crab-claw scraping plate are respectively provided with a semicircular hopper surface I and a semicircular hopper II with different diameters; and the semicircular hopper surface I and the semicircular hopper surface II are respectively provided with a group of meshing teeth I and a group of meshing teeth II. The crab-claw type filling device disclosed by the invention has the advantages that higher efficiency and higher quality for the filling work of the blast holes are achieved, the safety, reliability and the blasting quality of the mine blasting are effectively improved and the labor intensity of workers is reduced.

The invention discloses a double-tube connecting structure for detonation synthesis and a detonation synthesis device based on the double-tube connecting structure. The double-tube connecting structure comprises a driving tube, a sample tube and an end plug arranged at the port of the sample tube, wherein the driving tube sleeves the sample tube, and cavities exist between the driving tube and thesample tube and between the driving tube and the end plug. The structure further comprises fixing pieces, and the top end opening and the bottom end opening of the driving tube are covered with the fixing pieces. After detonation, detonation waves are sequentially transmitted from top to bottom and are impacted, and the driving tube performs centroid sliding motion towards the axis of the sampletube from top to bottom, so that the driving tube sequentially coats the top end plug of the sample tube, the sample tube and the bottom end plug of the sample tube from top to bottom. According to the device, a graphite sample can be effectively converted into high-purity diamond, the conversion rate can reach 90% or above, the converted product high-purity diamond can be completely recycled, therecycling rate reaches 100%, and industrial production can be achieved easily.

The invention relates to a mine-used interlocking detonating method, including the following steps: (1) confirming information of a blasting place; (2) confirming identity information of a blasting operator; (3) confirming that actual data information of a blasting environment meets a blasting standard; (4) confirming that a blasting route is in accordance with the blasting standard; (5) confirming that the blasting operator does not go out of a designated activity area of the blasting operator; and (6) generating a blasting instruction and implementing blasting, wherein the blasting instruction can not be generated if information of any of the steps is not confirmed. The invention further relates to a mine-used interlocking detonating system applicable to the method, including an interlocking detonating apparatus and a system host. The method and system provided by the invention integrate an iris identification technology, a radio frequency identification technology and a wireless communication technology together, which improves accuracy of the blasting operator recognizing, guarantees personnel safety of the blasting operator during blasting, makes real-time monitoring of the entire blasting process be realized, and greatly improves the safety of blasting operations.

Disclosed is a radial tire of fiber cord fabric tire shoulders. The radial tire comprises a wire cord fabric, a fiber cord fabric and an airtight layer, wherein the wire cord fabric, the fiber cord fabric and the airtight layer are located at the tire shoulders of the inner wall of the tire, and distributed in sequence from outside to inside; and steel wires are arranged in the wire cord fabric, fibers are arranged in the fiber cord fabric, and included angles of 5-45 degrees are formed between the fibers and the steel wires. The radial tire of fiber cord fabric tire shoulders has the advantages of solving the problems of bending deformation, seam production, cord exposure and the like of the carcass wire cord fabric of the on-load radial tire in the production process by virtue of a netlike structure formed due to different angles between the fibers of the fiber cord fabric and the steel wires of the wire cord fabric, thereby avoiding tire flat, shoulder separation, explosion, early damage and other similar situations, improving the running safety of the tire and prolonging the service life of the tire.

The invention discloses an equipment airborne multi-stage airbag cooperative buffering device. The equipment airborne multi-stage airbag cooperative buffering device comprises an upper airbag, an airbag tube column and a lower airbag; the upper airbag can exhaust air to the outside to reduce pressure by using an upper airbag exhaust valve and can also exhaust air to the airbag tube column by usinga combined exhaust valve I, and the airbag tube column expands to realize primary buffering; the airbag tube column can exhaust air to the outside to reduce the pressure by using an airbag tube column exhaust valve and can also exhaust air to the lower airbag by using a combined exhaust valve II, and the lower airbag expands to realize secondary buffering; and the lower airbag can exhaust air tothe outside to the reduce the pressure by using a lower airbag exhaust valve to realize three-stage buffering. According to the equipment airborne multi-stage airbag cooperative buffering device, through multi-stage buffering of the airbag cooperative buffering device, airborne equipment can be prevented from directly touching the ground multi-stage releasing of the pressure in the airbag can alsobe realized; and therefore, the airbag is prevented from exploded and safely landing of the airborne equipment is guaranteed.

The invention relates to a buffering and energy-absorbing highway anti-collision guardrail. The guardrail comprises a pre-buried supporting plate and a plurality of inclined supporting rods connected to one side wall of the pre-buried supporting plate, a plurality of main anti-collision mechanisms are connected to the other side wall of the pre-buried supporting plate, auxiliary buffering mechanisms are arranged in gaps among the main anti-collision mechanisms, and the two ends of each auxiliary buffering mechanism are connected with the main anti-collision mechanism and the embedded supporting plate correspondingly. According to the buffering and energy-absorbing highway anti-collision guardrail, progressive buffering is conducted on out-of-control vehicles through the main anti-collision mechanism and the auxiliary buffering mechanisms, and the buffering process can be more stable and the buffering effect is better through buffering of multiple sets of buffering components. When an anti-collision plate is impacted, the anti-collision plate moves towards a middle limiting column, in the moving process, the auxiliary buffering mechanisms play a role in auxiliary buffering, meanwhile, the anti-collision plate can be prevented from being broken or deformed due to collision, the situation that the fixing column or the hollow sleeve is broken due to uneven stress of the anti-collision plate is effectively avoided, and safety is higher.

The invention discloses a bidirectional press-fit die for an embedded joint bearing. The bidirectional press-fit die comprises a mandrel and two groups of press-fit dies which are oppositely arranged,and each group of press-fit dies comprises an inner ring limiting block, an outer ring limiting block and an press-fit bottom plate; the press-fit bottom plate is connected between the inner ring limiting block and the outer ring limiting block in a sliding mode, a first reset piece is arranged between the inner ring limiting block and the press-fit bottom plate, and a second reset piece is arranged between the outer ring limiting block and the press-fit bottom plate; and when the inner ring limiting block and the outer ring limiting block abut against an inner ring end face and an outer ringend face of the joint bearing correspondingly, and the press-fit bottom plate can overcome the reset force of the first reset piece and the second reset piece under the action of external force to continue to slide so as to press a bush between the inner ring and the outer ring of the joint bearing. The bidirectional press-fit die is high in press-fit efficiency, the efficiency can be improved bymore than one time compared with a traditional press-fit die, the press-fit quality is stable, and the service life of the joint bearing is prolonged.