30results about How to "Increase distribution density" patented technology

The invention relates to a high-temperature resistant brazed die-casting aluminum alloy and a preparation method and application thereof. The alloy comprises Si: 0.05-0.8wt%; Fe: 0.8-3.0wt%; Ni: 0.005-1.5wt%; Mn: 0.3-1.5wt%; Mg: 0.005-2.50wt%; Zn: 0.005-3.0wt%; Cu: 0.005-1.0wt%; Ce: 0.005-0.20wt%; Cr: 0.01-0.5wt%; Ti: 0.01-0.25w%; B: 0.001wt%-0.1wt%; the sum of the weight percentages of other impurities is controlled to be less than 0.5wt%, and the remainder is Al; and the mass ratio P value of Fe to (Ni+Mn+Cr) is controlled to be 0.3-3:1. Compared with the prior art, the die-casting aluminum alloy prepared by the present invention has excellent die-casting property, high temperature resistance and brazing property.

The invention provides a suspension containing radioactive microspheres as well as a preparation method and application of the suspension. The radioactive microsphere comprises a resin microsphere and radionuclide loaded on the resin microsphere, the material of the resin microsphere comprises at least one of polystyrene, polyethylene or polydivinylbenzene or a cross-linked polymer of the polystyrene, the polyethylene or the polydivinylbenzene, the average particle size of the radioactive microsphere is 25-40 [mu] m, and the non-spherical ratio of the radioactive microsphere is controlled within 5%. Therefore, the distribution density of the microspheres in the tumor part is improved, and the tumor killing effect is improved; in addition, the occurrence rate of adverse events can be reduced.

The utility model relates to fire extinguishing device technical field, and disclose a kind of high-pressure water mist fire extinguishing device of quick switching spray head, including water tank, the outside of water tank is equipped with pressure tank;Water pipe is connected at the outlet of pressure valve and water tank, the outlet of the spray gun is connected with water outlet spray head, the outside of water outlet spray head is movably connected with hinged frame by bearing;Clamping seat is equipped in the outside of hinged frame, the inside of clamping seat is all inserted with adjusting plugboard, the inside of adjusting plugboard is equipped with impact atomizing head, the inside middle position of adjusting plugboard is provided with through slot.The high-pressure water mist fire extinguishing device of quick switching spray head, by pushing hinged frame, so that it becomes horizontal state, so as to make impact atomizing head be located at the front of water outlet spray head, and then water body inside water outlet spray head can be changed into fine water mist by impact atomizing head, improve the use convenience of fire extinguishing device.

The invention discloses an asymmetric ceramic loop traveling wave thermo-acoustic refrigerating system which comprises four thermo-acoustic nuclear elements and four thermal buffer pipes, the four thermo-acoustic nuclear elements and the four thermal buffer pipes are alternately connected to form an annular loop, and the annular loop is filled with working medium gas. Wherein one or three thermo-acoustic core elements serve as thermo-acoustic engines and are used for absorbing heat energy and converting the heat energy into sound wave energy, the rest thermo-acoustic core elements serve as thermo-acoustic refrigerating machines and are used for absorbing the sound wave energy to refrigerate, heat regenerators are arranged in the thermo-acoustic core elements, and filler bodies in the heat regenerators are high-mesh ultra-thin-wall ceramic bodies. The thermoacoustic conversion efficiency is high, the refrigeration effect is good, when only one thermoacoustic engine is arranged, the refrigeration efficiency is higher, and when three thermoacoustic engines are arranged, lower temperature can be output.

The utility model discloses a circuit board structure for improving parallel walking line signal crosstalk in a ball grid array (BGA), which comprises a BGA area arranged on a circuit board, a plurality of parallel walking lines are arranged in the BGA area, each pair of parallel walking lines is provided with a periodically distributed wiring optimization area, and the wiring optimization areas are used for expanding the distance between the parallel walking lines. According to the utility model, periodic spacing optimization processing is carried out on the parallel lines in the BGA area, electromagnetic coupling effects are dispersed, continuous interference accumulation of long-distance parallel lines is avoided, the density of the lines is maintained, electromagnetic interference and crosstalk between signal lines can be optimized and improved, signal noise is reduced, and a line layer does not need to be increased.

The present application relates to the field of magnetic material technology, and more specifically, to an aluminum-nickel-iron magnetic powder core and its preparation method and application. An aluminum-nickel-iron magnetic powder core comprises the following components in parts by weight: 30-85 parts of modified aluminum-nickel-iron magnetic powder, 11-55 parts of resin composition, 2-10 parts of diluent, 0.3-1.2 parts of curing agent and 0.5-2.5 parts of accelerator, wherein the resin composition comprises polyetherimide modified epoxy resin, phenolic resin and hyperbranched polyimide resin. An aluminum-nickel-iron magnetic powder core of the present application improves the problems of insufficient magnetic properties, high eddy current loss, poor high-frequency performance of existing magnetic powder cores, and difficulty in meeting some market demands, so that the obtained aluminum-nickel-iron magnetic powder core has high effective magnetic permeability, large magnetic flux density, and low eddy current loss, meeting the market demand for magnetic powder core performance.

The invention relates to the technical field of remote sensing image fine-grained target detection, in particular to a two-way guided remote sensing image fine-grained target detection method. Comprising the steps of 1, acquiring image data, and dividing the image data into a training set and a test set; 2, constructing a target detection network, and obtaining image multi-scale features from the preprocessed image through a feature extraction network; then, a coarse-grained detector screens out a target candidate area and judges whether the target candidate area is a foreground or a background; then, a fine-grained detector carries out finer classification and positioning on the candidate areas; and step 3, carrying out performance evaluation on the test set so as to test the detection capability of the model on the fine-grained target in an actual scene. According to the method, for the problems of class sample imbalance and easy confusion of fine-grained classes in fine-grained target detection, the remote-sensing image fine-grained target detection capability is effectively improved by constructing a layered detection network architecture and combining an instantaneous confidence coefficient signal and class accumulation learning quality.

The invention discloses a crushing device for high-density board processing, and relates to the technical field of crushing, the crushing device comprises an external protective shell, two sides of the inner wall of the external protective shell are each fixedly provided with a group of inner supporting frames, the rear surface of the external protective shell is fixedly communicated with a hollow frame, and the top of the external protective shell is fixedly provided with an upper sealing cover; the top of the upper sealing cover fixedly communicates with a square pipe, a grading shape breaking mechanism is arranged in the external protection shell, an adsorption dust removal mechanism is arranged in the hollow frame, the grading shape breaking mechanism comprises a first rectangular cover, a second rectangular cover is fixedly installed at the bottom of the first rectangular cover, and the mechanism can treat plates in a grading mode. And the volumes of a plurality of materials formed after each stage of treatment of the plate are gradually reduced, and each stage of material is limited by the structure when being put down, so that the uniformity of the size of each material is ensured, the final crushing difficulty is reduced, the subsequent particle powder quality is improved, and meanwhile, the assembly is high in plate applying strength, and colloids in the plate are effectively damaged.

This invention relates to the field of cleaning device technology, specifically to a milling copper shavings recycling device, including a splash guard, and further comprising: a material guiding section, including two symmetrically arranged material guiding plates disposed below the splash guard, with multiple vibrating units mounted on the material guiding plates; and a cleaning section, including a bearing assembly disposed below the material guiding port of the material guiding plates, with cleaning components mounted on the bearing assembly. The material guiding section reduces the adhesion of untreated copper shavings, and the material guiding plates and vibrating units can gather the copper shavings to the bearing assembly, increasing the distribution density of copper shavings in the bearing assembly and facilitating improved cleaning efficiency of the cleaning components. The cleaning frame in the cleaning components can rub the copper shavings with rollers, which helps to remove impurities from the surface of the copper shavings and improve cleaning quality. In this device, the vibrating units can cooperate with the transmission assembly to make the vibrating plates continuously reciprocate, thereby providing effective vibration force to shake off the copper shavings.

The invention provides a modified ternary positive electrode material and a preparation method and application thereof.The preparation method comprises the steps that a ternary positive electrode material and a premixed solution obtained by mixing an acid ester solvent, a first additive and polyvinylidene fluoride are mixed, and then a two-time coating layer mechanism is constructed in a sintering and ball-milling mode; the modified ternary positive electrode material is obtained. According to the preparation method, by constructing a two-time coating layer mechanism, on one hand, residual alkali on the surface of the ternary positive electrode material can fully react in the coating process, a coating layer is formed on the surface of the ternary positive electrode material in situ, and the residual alkali on the surface of the material is reduced; on the other hand, a high-temperature heat treatment mode and a ball milling mode are adopted in the two coating processes respectively, so that the surface structure of the material can be further stabilized, oxygen removal of the ternary material under high-voltage and high-temperature conditions is inhibited, and the electrochemical performance, the technological processing performance and the cycling stability of the ternary positive electrode material are improved; and the overall particle size distribution and the compaction density of the modified ternary positive electrode material can also be improved.

The invention relates to the technical field of foaming cable processing, in particular to a physical foaming gas injection needle which comprises a gas injection needle body, a filter and a flow mold, the gas injection needle body comprises a gas inlet end, a filter seat and a jet needle section, a gas inlet channel is arranged in the gas inlet end, a filter channel is arranged in the filter seat, and a jet channel is arranged in the jet needle section; the filtering channel is communicated between the air inlet channel and the spraying channel; the filter is arranged in the filtering seat and located between the filtering channel and the air inlet channel, the filter comprises a particle filtering piece and a pressing ring, and the pressing ring is located on the side, close to the air inlet end, of the particle filtering piece; the flow mold is located between the filtering channel and the spraying channel, an overflowing hole is formed in the flow mold, and the flow mold is made of ruby materials. The production quality of the physical foaming insulation core wire can be improved.

The utility model belongs to the technical field of brushless fans, and particularly relates to a rotor structure of a brushless fan of a new energy automobile. The brushless draught fan comprises a brushless draught fan shell, and a stator containing cavity is formed in the brushless draught fan shell. In the use process, the stator is arranged in the brushless fan shell, the stator is positioned and fixed through the stator positioning part, so that the stator can axially rotate along the stator positioning part, the stator is driven to rotate through the matching between the equipartition type rotor assembly and the stator, and the equipartition type rotor assembly adopts a uniform distribution structure, so that the uniform distribution of the stator is realized. According to the brushless fan, the distribution density of the rotor is increased, the rotating speed of the brushless fan can be further increased, in the operation process, large-area heat dissipation of the inner side and the outer side can be achieved through the inner side heat dissipation part and the outer side heat dissipation part, the heat dissipation effect is improved, meanwhile, the back connection type connecting part is conveniently connected with a connecting piece and staggered with a stator containing cavity, and an abdicating space is achieved; and the installation of the stator is not influenced and the structure is compact and reasonable.

The utility model discloses a filter which comprises a tank body, a tank cover, a partition plate and a filter stick, the tank cover is hermetically connected with the tank body; the cavity of the tank body and the cavity of the tank cover are hermetically isolated by the partition plate; a plurality of filter sticks are arranged; the plurality of filter sticks are arranged in the cavity of the tank body; the plurality of filter sticks are distributed on the plate surface of the partition plate; the upper end of each filter stick penetrates through the tank cover in a sealing manner; and a decontamination vibrator is arranged in the cavity of the tank body. The decontamination vibrator is connected with the partition plate through a connecting piece; or the decontamination vibrator is connected with the tank body in a press fit manner. The connecting piece is a shackle connecting piece, a screw and nut connecting piece or a hinge pin shaft connecting piece. The filter disclosed by the utility model is time-saving, water-saving and power-saving in the back flushing process, and a new filter rod does not need to be replaced (unless damaged), so that manpower, material resources and financial resources are greatly saved, and the back flushing and pollution discharge efficiency is greatly improved.

The invention discloses a connection structure of a power switch unit and an internal power supply system of an integrated circuit. The connection structure is arranged in a channel between adjacent functional devices in the integrated circuit. Wherein the deployment area of the channel is cut into N sub-areas along the vertical direction of the bottom surface of the channel, a group of power switch units are deployed in each sub-area, and one of the two power switch units in each group of power switch units is located above the other power switch unit; the connection structure comprises a first power switch unit, a second power switch unit,..., and a 2Nth power switch unit which are sequentially connected in series, wherein the deployment direction of the N groups of power switch units is far away from the core area, and the deployment sequence of the N groups of power switch units is the first group of power switch units, the second group of power switch units,..., and the Nth group of power switch units; wherein the nth group of power switch units comprises the nth power switch unit and the (2N-n + 1) th power switch unit.

The present invention relates to an elastic force testing machine and a spot inspection method thereof, comprising a machine platform and a test platform, a storage bin, a test device, and a moving mechanism arranged on the machine platform. The test platform is provided with materials for elastic force testing, and the elastic force testing is moved between the storage bin and the test platform by the driving of the moving mechanism. The test device comprises a plurality of sensing components distributed in a matrix, the sensing components comprise a force sensor and a probe, the probe is arranged at the sensing end of the force sensor, a plurality of weights for spot inspection of each force sensor are placed in the storage bin, and the probe has a first contact portion that contacts with the material during elastic force testing, and a second contact portion that contacts with the weight during spot inspection and takes the weight out of the storage bin. The present invention separates the spot inspection and the test by the first contact portion that cannot be magnetized and the second contact portion that can be magnetized or has magnetism on the probe, so that all force sensors on the machine platform can be inspected at one time, eliminating the complicated manual hanging of weights and manual confirmation of data.

The present invention relates to a pneumatic rejection device, system and method for waste cigarettes, comprising a plurality of flexible air nozzles arranged in an array along a set plane and with central axes parallel to each other, the flexible air nozzles being supported by a supporting structure, the flexible air nozzles having an air duct, one end of the air duct being connected to an air supply mechanism, and the other end being capable of being sealed and connected to a corresponding workstation hole in a cigarette mold box, the central axis of the flexible air nozzle being parallel to the central axis of the workstation hole; the supporting structure being connected to a linear drive mechanism, the driving direction of the linear drive mechanism being coincident with the direction of the central axis of the workstation hole, the linear drive mechanism being capable of driving the plurality of flexible air nozzles to synchronously complete the sealed connection or relaxation with the corresponding workstation holes.

The present invention relates to the technical field of grain drying, and in particular to an agricultural grain circulation drying device, comprising an outer cylinder, a hot air blower is fixedly installed at the bottom of the outer cylinder, a shoveling mechanism and a conveying mechanism, the shoveling mechanism comprising a turntable, the turntable is rotatably connected to the top of the hot air blower, a plurality of shovel-shaped leaves are fixedly connected to the top of the turntable, the shovel-shaped leaves are eccentrically arranged, a plurality of arc plates are fixedly installed on the shovel-shaped leaves, a circular arc groove is arranged on the side of the shovel-shaped leaves away from the shovel blade, and a second nozzle is arranged on the side wall of the shovel-shaped leaves. The present invention gathers grains to a double-layer hollow tube by arranging shovel-shaped leaves, which are conveyed upward by a spiral rod and then fall naturally, thereby realizing continuous grain circulation and effectively avoiding the problem of grain backlog or uneven local drying. The shovel-shaped leaves help to break up the accumulation of grains, and the grains are in contact with the hot air sprayed from the second nozzle, thereby accelerating the transfer of heat and the evaporation of water, and enhancing the drying effect of the grains.

The invention relates to a throwing device capable of regulating and controlling explosion energy distribution, and belongs to the technical field of ammunition. The device comprises a cabin opening mechanism, a shell, a base and a blasting unit, wherein the cabin opening mechanism is used for radially separating the shell to expose the blasting unit; the blasting unit comprises a blasting assembly, the blasting assembly comprises a throwing mechanism and a throwing body, the throwing body is installed on the throwing mechanism, the throwing mechanism is used for throwing the throwing body, and the throwing body is used for covering a target area. The cabin opening mechanism and the scattering mechanism are arranged to be used for cabin opening and scattering of the scattering body correspondingly, after cabin opening and scattering of the scattering body are achieved, the cabin opening mechanism and the scattering mechanism do not disintegrate and can serve as a whole with the base to continue to cover the target area, especially the center area of the target area can be covered, and therefore the target area can be more effectively covered. Therefore, the coverage density of the target area is improved, and the coverage effect is improved.

This utility model discloses a mattress fabric, comprising, from the outside to the inside, a surface layer, an air layer, and a bottom layer, with an air layer formed between the surface layer and the bottom layer. The surface layer includes a first longitudinal stripe area and a second longitudinal stripe area. The first longitudinal stripe area has a cyclically arranged breathable unit and a connecting area. Each breathable unit includes two parallel first breathable holes and one second breathable hole, which are arranged alternately along the length of the fabric. This utility model adds surface breathable holes to the original air layer through fiber weaving, increasing the direct airflow path between the mattress fabric layer and the filling layer, thereby reducing moisture accumulation. Furthermore, the cyclic arrangement of the first and second breathable holes increases the density of the breathable holes, maintaining uniform airflow. Simultaneously, the thickness of the air layer allows air to circulate within the fabric layer.

A method for preparing a transmission electron microscope sample of magnetic powder particles belongs to the technical field of transmission electron microscope sample preparation, and comprises the following steps: embedding magnetic powder particles in a transmission electron microscope sample support net, further fixing them with a special resin for ion thinning, respectively arranging thin film materials on the upper and lower layers, applying pressure with a clamp, making the special resin for ion thinning evenly distributed, completely wrapping the transmission electron microscope sample support net and the magnetic powder particles, exhausting the existing air, heating and heat preservation and then cooling, taking out the support net, preparing a thin area, and obtaining a transmission electron microscope sample of magnetic powder particles. The present invention can make the magnetic powder particles be subjected to transmission electron microscope microstructure observation, ensure that the magnetic powder particles can be stable and immobile under high-intensity magnetic field conditions, and make transmission electron microscope observation of the microstructure of the magnetic powder particles possible.

The invention relates to electric energy out-of-control equipment for an electromagnetic equipment target, and belongs to the technical field of ammunition. The device comprises a dispensing unit and a conductive fiber group, wherein the conductive fiber group is mounted on the dispensing unit; the dispensing unit comprises a dispenser and a plurality of loaders; a fourth powder cavity and multiple layers of third through holes are formed in the loader, a fourth energy body is installed in the fourth powder cavity, conductive fiber clusters are installed in the third through holes, and the conductive fiber clusters can be cast along the third through holes; the fourth medicine cavity comprises a plurality of cavity sections, and the diameter of the latter cavity section is larger than that of the former cavity section; and each cavity section is opposite to at least one layer of third through holes. According to the invention, a plurality of loaders are thrown along a plurality of directions, and the loaders throw loaded multi-layer wire fiber clusters in an echelon manner, so that fiber tows expanded by different layers of conductive fiber clusters can cover different radiuses, the distribution density of the fiber tows and the probability that the fiber tows fall on an electric power system are improved, and the reliability of the electric power system is improved. And the success rate of power failure paralysis of the power system is improved.

This invention relates to the field of mine water hazard prevention and control technology, and provides a method for efficient drainage of water accumulation in goaf areas affected by repeated mining of multiple coal seams in close proximity. The method includes the following steps: conducting surface geophysical exploration of the prevention and control area and collecting mining information of the coal seams in the goaf; delineating abnormal water accumulation areas and low-lying areas within the prevention and control area; deploying water level monitoring holes and surface drainage holes in the abnormal water accumulation areas and low-lying areas; designing and constructing underground directional boreholes to ensure that the trajectory of the underground directional boreholes covers the abnormal water accumulation areas and low-lying areas; and performing through-hole drilling on the underground directional boreholes until the water output of each underground directional borehole drops to a target value. The following describes the process of testing the drainage effect in the prevention and control area. This invention, through ground geophysical exploration of the prevention and control area and combined with collected information on the recovery of coal seams overlying the goaf, can accurately delineate areas of abnormal water accumulation and low-lying terrain. By deploying water level monitoring boreholes and surface drainage boreholes within the delineated key areas, it not only achieves real-time monitoring of groundwater levels in these areas but also enables simultaneous drainage both above and below ground. Furthermore, by designing and constructing directional boreholes underground, ensuring their trajectory covers areas of abnormal water accumulation and low-lying terrain, it can more directly and effectively prevent water accumulation in the goaf overlying coal seams of the target area.

The invention provides a suspension containing radioactive microspheres as well as a preparation method and application of the suspension. The radioactive microsphere comprises a resin microsphere and radionuclide loaded on the resin microsphere, the material of the resin microsphere comprises at least one of polystyrene, polyethylene or polydivinylbenzene or a cross-linked polymer of the polystyrene, the polyethylene or the polydivinylbenzene, the average particle size of the radioactive microsphere is 25-40 [mu] m, and the non-spherical ratio of the radioactive microsphere is controlled within 5%. Therefore, the distribution density of the microspheres in the tumor part is improved, and the tumor killing effect is improved; in addition, the occurrence rate of adverse events can be reduced.

The utility model provides a storage device with low delay characteristic, include: a plurality of selection transistor, a plurality of floating gate transistor, a plurality of floating gate transistor respectively with bit line and word line electric nature connection, wherein a plurality of floating gate transistor respectively with corresponding selection transistor electric nature connection, and with the form of storage unit integrated in same flash memory chip, and floating gate transistor includes control grid, source electrode and drain electrode, wherein control grid and word line electric nature connection, any electrode in source electrode or drain electrode is in floating state, and another electrode electric nature connection is in bit line, and main controller is electrically connected with host computer and flash memory chip, and according to the instruction random access any storage unit of host computer. The utility model can provide high density and high reliability storage space under the premise of not using error correction related technology.

The invention relates to a treatment process for separating epoxy resin glue from a base material, which is applied to the related technical field of building detection, baking and burning in the prior art are replaced by a steam softening mode, and during softening, a drawing head with epoxy resin is always in a dynamic state, so that the drawing head can be in full contact with steam, and the service life of the drawing head is prolonged. Meanwhile, the temperature of the space above each dynamic tray in the equipment body can be monitored, and the steam above the dynamic tray far away from a steam source can be dynamically guided, so that the steam is turbulent, the diffusion speed above the plurality of dynamic trays is accelerated, the temperature of the space above the plurality of dynamic trays is effectively reduced, and the temperature of the space above the plurality of dynamic trays is reduced. Compared with the prior art, the production of harmful gas is effectively reduced, and meanwhile, the softening efficiency is effectively improved, so that the separation efficiency is effectively improved.

The invention relates to the technical field of neonatal MRI imaging devices, and provides a neonatal MRI imaging device which comprises an imaging unit, a head fixing device and a matched bed body facilitating testing, the head fixing device is of a helmet type structure and comprises an upper cover body and a base, and a flexible coil module used for imaging is arranged in the imaging unit.

The invention relates to a three-dimensional knitting yarn storage device which is arranged between a yarn carrier body and a yarn hanging point and comprises an upper yarn winding rod, a lower yarn winding rod, yarn and a lifting device. Yarn is wound and stored outside the upper yarn winding rod and the lower yarn winding rod, one end of the yarn is connected with the yarn carrier body, and the other end of the yarn is connected with the yarn hanging point. The lifting device is installed between the upper yarn winding rod and the lower yarn winding rod and used for controlling the distance between the upper yarn winding rod and the lower yarn winding rod. The yarn storage device is arranged between the yarn carrier main body and the yarn hanging point, so that the yarn storage device and the yarn carrier main body are separately arranged, the distribution of the yarn carrier main body is not influenced, the distribution density of the yarn carrier main body on the chassis is favorably improved, and the thickness of a three-dimensional woven preform is ensured.

The invention relates to the technical field of production of non-oriented electrical steel, in particular to non-oriented electrical steel with excellent punching performance and a production method, and the non-oriented electrical steel comprises the following chemical components in percentage by weight: less than or equal to 0.002% of C, 0.50%-1.50% of Si, 0.5%-1.5% of Mn, 0.005%-0.015% of Te, 0.001%-0.003% of Ca, 0.005%-0.015% of RE, 0.01%-0.05% of S, less than or equal to 0.002% of N, 0.20%-0.60% of Als and the balance of Fe and inevitable residual elements. Wherein RE comprises Ce and La; the method has the beneficial effects that on the premise that the optimized magnetic performance is maintained, the punching burr height is remarkably reduced, the service life of a die is prolonged, the punching sheet section smoothness and the punching sheet qualification rate are improved, and therefore the overall performance of a motor is optimized.

The invention relates to a covering type striking device for scattering vaterite kinetic energy bodies, and belongs to the technical field of ammunition. The device comprises a first-stage scattering mechanism and a second-stage scattering mechanism, wherein vaterite is mounted on the second-stage scattering mechanism; the first-stage throwing mechanism comprises a throwing plunger and a first-stage throwing energy body, the throwing plunger can conduct throwing in the radial direction of the throwing seat body, throwing kinetic energy is transmitted to the second-stage throwing mechanism through the throwing plunger, and the second-stage throwing mechanism conducts throwing in the radial direction; and the second-stage throwing mechanism is used for throwing vaterite. Energy generated after the first-stage throwing energy body is detonated is directly transmitted to the second-stage throwing mechanism through the throwing plunger, kinetic energy loss is small, vaterite is thrown through the second-stage throwing mechanism, the vaterite is superposed with the throwing kinetic energy of the first-stage throwing mechanism on the basis of obtaining the throwing kinetic energy of the second-stage throwing mechanism, and the throwing kinetic energy of the second-stage throwing mechanism is obtained. The vaterite scattering kinetic energy is improved, the kinetic energy penetration effect of the vaterite on the target area is enhanced, and meanwhile the covering effect of the vaterite on the target area is improved.

This utility model relates to the field of pipeline device technology and discloses a porous pipeline device for sewage aeration. The porous pipeline device includes a sewage tank, on which a decontamination mechanism is installed. The decontamination mechanism includes an air inlet pipe. To improve the filtration effect of the aeration gas, this porous pipeline device for sewage aeration incorporates a decontamination mechanism. When the gas enters the gas collection box from the air inlet pipe, it undergoes further fine filtration with the help of coarse and dense filter plates. Multiple sets of branch pipes increase the distribution density of the exhaust ports and the gas discharge area. Simultaneously, the filter screen breaks the gas into multiple small bubbles, allowing the gas to contact the sewage over a wider range and at more angles, thereby improving the gas-liquid mixing effect. Furthermore, the conical design of the conical shroud prevents impurities in the water from adhering and accumulating near the top of the branch pipes; instead, they slide off along the slope under the action of water flow, ensuring stable operation of the device.