34results about How to "Prevent from taking" patented technology

The invention relates to the technical field of tail gas emission control of vehicles, and discloses a particulate matter sensor. The particulate matter sensor is provided with a conductive shell, a cylindrical protective piece and a high-voltage electrode which is arranged in the conductive shell and is insulated from the conductive shell, wherein the conductive shell is grounded; the high-voltage electrode is connected with a high-voltage power supply; one end of the conductive shell is connected with one end of the protective piece in a sealed mode; and a tail gas inlet and a tail gas outlet are formed in the protective piece. A measurement method for the particulate matter sensor comprises the following steps of: grounding the conductive shell; applying high voltage onto the high-voltage electrode; allowing gas to be detected to flow through the clearance between the high-voltage electrode and the conductive shell, wherein particulate matters in the gas to be detected are ionized or polarized into conductors through the high-voltage electrode, and other matters in the gas to be detected are not ionized or polarized into the conductors; measuring leakage current, capacitance or resistance values between the high-voltage electrode and the conductive shell; and acquiring the concentration of the particulate matters in the gas to be detected according to a functional relation. The particulate matter sensor and the measurement method thereof are high in measurement accuracy; and the particulate matter sensor has long service life.

The invention discloses a plunger friction pair of a high-pressure seawater axial plunger pump with a bionic non-smooth surface. The plunger friction pair is mainly characterized in that through hole unit bodies communicated with an inner cavity of a plunger are arranged on the friction surface positioned in a cylinder body in the operation process of the outer surface of a plunger of the friction pair; the other friction surfaces of the plunger are provided with pit unit bodies. Preferably, a bush with the bionic non-smooth surface is added between the plunger and the cylinder body, a groove type trench is arranged on the outer wall of the bush, and the through hole unit bodies are regularly arranged at the bottom part of the trench. The plunger friction pair disclosed by the invention has the advantages that the lubricating capability, the bearing characteristic and the friction and wear properties of the plunger friction pair can be reasonably improved by high cost performance.

The invention relates to the technical field of tail gas emission control of vehicles, and discloses a particulate matter sensor with improved measurement accuracy. The particulate matter sensor is provided with a conductive shell, a cylindrical protective piece and a high-voltage electrode which is arranged in the conductive shell and is insulated from the conductive shell, wherein the conductive shell is grounded; high voltage is applied onto the high-voltage electrode; and a metal shielding layer is arranged in a sealed space and at the periphery of the high-voltage electrode, is grounded and is insulated from the high-voltage electrode. A measurement method for the particulate matter sensor comprises the following steps of: measuring leakage current, capacitance or resistance values between the high-voltage electrode and the conductive shell; and acquiring the concentration of particulate matters in gas to be detected according to a functional relation. The particulate matter sensor with the improved measurement accuracy has high measurement accuracy and long service life; and by the metal shielding layer, interference leakage current is eliminated, and pollutants of which the outside is oxidized and corroded can be prevented from entering an internal space so as not to influence the measurement accuracy and the service life.

The invention discloses a cyclone dust collector of a vacuum cleaner, which comprises a handle, a cyclone separator, a conical filter, a dust collecting barrel and a positioning lock connected to the dust collecting barrel, wherein an elliptic barrel body of the cyclone separator is arranged at an opening on the upper part of the dust collecting barrel; the conical filter and a rotational flow generator are arranged in the barrel body; the front end part and the rear end part of the lower barrel wall of the barrel body of the cyclone separator are provided with an air inlet port and a dust discharge port respectively; one end of the rotational flow generator is connected with the rear wall of the cyclone separator, a cavity is formed in the end of the rotational flow generator, and a plurality of through holes are formed on the end face of the other end of the rotational flow generator; the rear wall of the cyclone separator is provided with a plurality of vent holes leading to the cavity of the rotational flow generator; besides, a lateral surface, facing the rear wall of the cyclone separator, of the positioning lock is provided with a dust scraping flange. The cyclone dust collector can maintain high performance of the cyclone separator, such as air discharge for depressurization and improvement on the dust separation efficiency, and can prevent garbage from adhering or enwinding to a conical part of the conical filter.

The invention relates to 'an anti-calking feed chute for a refuse transfer station', and belongs to the field of environment-friendly equipment. The anti-calking feed chute for the refuse transfer station comprises a chute body, and is characterized in that a window structure which is opened towards the inside of the chute body and a transmission device which is connected with the window structure are arranged on a side plate of the chute body. Under the action of the transmission device, the window structure is opened towards the inside of the chute body, so that calking of materials in the chuck body is eliminated. The anti-calking feed chute for the refuse transfer station slightly modifies the prior feed chute according to the structure of the feed chute, and well solves the calking problem generated by material stacking in the feed chute.

The invention discloses a dedusting system of a polishing chamber, and belongs to the technical field of wood processing. The dedusting system of the polishing chamber comprises a conveying belt, a polishing chamber, a dedusting chamber and a separating wall, wherein the dedusting chamber and the polishing chamber are separated by the separating wall; the conveying belt is positioned on the middle and lower section of the polishing chamber; the top of the dedusting chamber is provided with a spraying system comprising a water accumulation tank, a spraying pipeline and a spraying head; the water accumulation tank is positioned on the top of the dedusting chamber; the spraying pipeline is communicated with the water accumulation tank; the sprayer is installed at the outlet end of the spraying pipeline. According to the technical scheme, the enclosed polishing chamber is externally provided with the dedusting chamber, and dust in the polishing chamber is discharged into the dedusting chamber so as to achieve an effect of removing the dust in the polishing chamber effectively; the spraying system is arranged in the dedusting chamber, the dust discharged from the polishing chamber is sprayed into a water tank below, and is collected into the water accumulation tank, so that the safety of the dedusting chamber is ensured; the damage to the health of workers is avoided; meanwhile, the environmental pollution is reduced greatly.

The invention discloses a boiler water circulation device with middle mixing headers and pressure balance pipes. High-rib optimization inner thread pipe vertical pipe coils are adopted in lower hearth water walls, the outlet ends of the front wall water wall, the rear wall water wall, the left wall water wall and the right wall water wall of a lower hearth are connected with four transverse middle convergence headers of the lower hearth respectively. The four transverse middle convergence headers of the lower hearth are connected through the pressure balance pipes. Light pipe vertical pipe coils are adopted in upper hearth water cools. The inlet ends of the front wall water wall, the rear wall water wall, the left wall water wall and the right wall water wall of an upper hearth are connected with four transverse middle convergence headers of the upper hearth respectively. The four transverse middle convergence headers of the lower hearth and the four transverse middle convergence headers of the upper hearth are connected with the two vertical middle mixing headers located on the left side and the right side of a boiler through connecting pipes. High-rib optimization inner thread pipes are adopted, the increasing of flow resistance in the pipes is not large, and the heat transfer performance is enhanced. The middle is mixed sufficiently, and the situation that the outlet steam temperature deviation of the water walls of the upper hearth is likely to happen due to the outlet steam temperature deviation of the water walls of all walls of the lower hearth is prevented. By means of the pressure balance pipes, the phenomenon of flowing instability of the water walls of the lower hearth is avoided.

The invention discloses a rice flour preparation device which is characterized in that a heating device is composed of a heating cylinder, an electromagnetic heating coil and an insulation cover; a heat storage cavity which surrounds a material extrusion channel and is filled with heat conduction oil is arranged in the heating cylinder; the insulation cover is arranged at the periphery of the heating cylinder, and the electromagnetic heating coil is arranged in a heating cavity formed between the insulation cover and the heating cylinder; a spiral material extrusion rod extends into the material extrusion channel from the right side of the heating cylinder; and a rice flour forming assembly is arranged at the left end of the heating cylinder and is communicated with the material extrusion channel. The rice flour preparation device has the advantages of compact and scientific structure, safe and reliable work, long service life, short production cycle and high degree of automation, and the produced rice flour is safe and guaranteed; the rice flour preparation device has the characteristics of small volume, small production site occupation area, energy saving and environmental protection, and is convenient and fast to maintain, very convenient to assemble, disassemble and clean and convenient to operate; and furthermore, the processed rice flour is high in degree of curing, the vermicelli is fine and uniform, has good toughness, is not easy to break, is smooth and delicate and has good taste, and the produced flour is not sticky.

The invention discloses a drainage method of salt-alkali soil. The method includes the steps of spreading a hydrophobic membrane at the position, which is 25-55 cm deep, of a salt-alkali soil layer, wherein a drainage net pipe is arranged above the hydrophobic membrane and is composed of a plurality of transverse drainage pipes and a plurality of longitudinal drainage pipes which are perpendicular to each other, the transverse drainage pipes and the longitudinal drainage pipes which intersect are in fluid communication, a water inlet and a water outlet are formed in the drainage net pipe, seepage holes are formed in pipe bodies of the transverse drainage pipes and the longitudinal drainage pipes, a water suction pump is arranged at the water outlet, and a water inlet of the water suction pump is in fluid communication with the water outlet; when rain stops or irrigation and drainage are stopped, starting the water suction pump to suck water so that water of the soil layer above the hydrophobic membrane can enter the drainage net pipe through the seepage holes so as to be drained out of the drainage net pipe. By means of the method, water is saved, and the salt content of the upper soil layer of salt-alkali soil can be kept balanced.

The invention provides a full-automatic shoe polishing device. The device includes a cleaning brush, a seat convenient to use and a shoe polishing machine body; the shoe polishing machine body is arranged on a device body; a touch computer is arranged on one side of the top of the shoe polishing machine body; a placement platform is arranged on one adjacent side of the touch computer; two observation plates are also arranged on one side of the shoe polishing machine body; a shoe oil discharging device is fixedly installed between the two observation plates; device steps are arranged on the bottom of one side of the shoe polishing machine body; baffles are arranged on both sides of the shoe polishing machine body and device steps; electric push rods are arranged on the two sides of each baffle and positioned on the adjacent outer side of the shoe polishing machine body; an armrest is arranged on the tops of the electric pushing rods. The placement platform of the full-automatic shoe polishing device is designed in a groove structure, correspondingly portable objects can be placed on the placement platform conveniently, and certain damage caused by detaching to the placed objects iseffectively prevented through the design of a groove.

The invention discloses a cyclone dust removal device for treating acid waste gas, belongs to the technical field of environmental protection equipment, and aims to solve the problems that the existing cyclone dust collector is poor in purification effect at an outlet due to the fact that settled dust is easily brought up by purified gas during use, dust is easily gathered on the inner wall duringuse, wind resistance is increased, and the gathered dust is difficult to remove. The device comprises an outer shell; the top of the outer shell is fixedly connected with a group of driving motors; and a group of dust scraping devices are rotationally connected to the interior of the outer shell. According to the device, a dustproof baffle is arranged at the bottom of an air outlet pipeline; dustcollected at the bottom is effectively prevented from being brought up again, the purification quality is guaranteed, meanwhile, the dust scraping devices are arranged to scrape dust on the inner wall of the outer shell, the inner wall of the outer shell is kept clean, the dust is prevented from being gathered on the inner wall of the outer shell, the dust removal effect is better, and the cleanliness of gas obtained after dust removal is higher.

The invention relates to an automobile braking oil storing kettle opening cover assembly which comprises an oil storing kettle cover. The automobile braking oil storing kettle opening cover assembly is characterized by further comprising a ventilation valve seat and a sealing ring arranged in the middle of the ventilation valve seat. The middle and the lower portion of the ventilation valve extend into an oil storing kettle and are matched with the inner wall of an opening portion of the oil storing kettle. The oil storing kettle cover is connected with the upper end of the ventilation valve seat in a clamped and rotating mode, and a little vertical moving amount generated. The automobile braking oil storing kettle opening cover assembly can not only meet the requirement for ventilation of the oil storing kettle and but also prevent braking liquid from being brought to the surface of the oil storing kettle by gas.

The invention discloses a disposable degradable chopstick and a production method thereof. The disposable degradable chopstick comprises, by weight, 20-30 parts of cassava starch, 10-20 parts of peanut hulls, 20-30 parts of almond shells, 35-40 parts of sisal fibers, 27-35 parts of banana fibers, 30-40 parts of food gum, 10-15 parts of molding powder, 0.2-0.3 parts of cactus, 0.1-0.3 parts of fennel, 0.2-0.4 parts of ginkgo, 0.1-0.2 parts of nutmeg and 0.3-0.4 parts of tea leaves. The cassava starch, the sisal fibers, the banana fibers, the waste peanut hulls and the almond shells are comprehensively used, and mixed extract with anti-oxidative and antibiotic functions are added to improve the use performances of the chopstick, and extrusion molding is carried out under the action of the food gum and the molding powder, so the chopstick produced in the invention has the advantages of high strength, large toughness and good antibiotic and anticorrosive effects.

The invention discloses an automatic assembling device used for assembling steel balls and steel pins simultaneously, and belongs to the technical field of automatic tools. The automatic assembling device comprises a positioning base used for positioning a to-be-installed workpiece, the automatic assembling device further comprises a first vibrating disc for containing the steel balls and a secondvibrating disc for containing the steel pins, the first vibrating disc and the second vibrating disc feed the steel balls and the steel pins to a receiving device through vibration feeding, a feedingplate is movably installed in the receiving device and is connected with a first driver and a feeding pipe, the motion positions of the feeding plate in the receiving device comprise a first positionand a second position, when the feeding plate is at the first position, the steel balls are conveyed into the to-be-installed workpiece through the feeding pipe, and when the feeding plate is locatedat the second position, the steel pins are conveyed into the to-be-installed workpiece through the feeding pipe. In addition, the invention further discloses an assembling method for assembling the steel balls and the steel pins simultaneously through the automatic assembling device. The automatic assembling device and the assembling method can greatly improve the assembling efficiency and the assembly accuracy.

The invention discloses an electrical automatic equipment overhauling protection device. A first supporting unit and two pressing units are included. The two pressing units are arranged at the upper portion of the first supporting unit. The first supporting unit comprises a first base, a first supporting column vertically and fixedly arranged at the upper portion of the first base, and a beam fixedly arranged at the upper end of the first supporting column, and two first installing holes are symmetrically formed in the beam. The electrical automatic equipment overhauling protection device caneffectively prevent gluing roller rotation, the surfaces of gluing rollers can be prevented from being scratched during gluing roller overhauling, the gluing rollers can be prevented from being damaged, and accordingly, the running cost of the factory is reduced. Through a prepared protection layer, the corrosion resistance, anti-static performance, dustproof performance and the anti-aging performance of a first base and a second base can be effectively improved, the service life of the first base and the second base can be effectively prolonged, static electricity can be prevented, the situation that static electric exists in the gluing rollers, and gluing is influenced can be effectively prevented, dust is not prone to being stained on the surface of the first base or the surface of thesecond base, the dustproof effect is good, and cleaning is convenient.

The invention relates to a refrigerating machine housing (1), comprising an inner container (3) defining a cooled space, said inner container being provided on the outside with an insulating material layer (2), and having a bearing formed on the side walls (32) thereof for a lid (6) that is pivotally supported at the inner container (3) by means of bearing elements (52), wherein the bearing element (52) is provided at a backing piece (5) located on the insulating material side, said backing piece being located on at least one of the side walls (32) and penetrating the side wall (32) in an opening (42).

The invention discloses an equipment power-saving device. The device comprises a shell, a power input interface is arranged at one side of the shell, and a power output interface is arranged at the other side; multiple interfaces are arranged at front side of the shell, a power-saving mechanism is arranged in the inner cavity of the shell, and the power-saving mechanism is arranged between the power input interface and the power output interface; multiple radiating slots are formed on the upper end surfaces of the shell, and a radiating fan is arranged at inner sides of the radiating slots, and an anti-electrostatic coating is coated on the outer wall of the shell. The equipment power-saving device disclosed by the invention is novel in structure design and capable of effectively saving the power utilization of the equipment; furthermore, the power-saving device has excellent radiating effect and long service life.

The invention discloses a cyclone dedusting device for treating acid waste gas, relates to the technical field of environmental protection equipment, and solves the problem that the existing cyclone dedusting equipment settles dust easily during use and is carried up by the purified gas, resulting in poor purification effect at the outlet At the same time, it is easy to accumulate dust on the inner wall during use, which increases wind resistance, and it is difficult to remove the accumulated dust, including the outer shell; the top of the outer shell is fixedly connected to a group of drive motors; the inside of the outer shell There is a group of dust scraping devices connected to the upper rotation. By setting a dust-proof baffle at the bottom of the air outlet pipe, the device can effectively prevent the dust collected at the bottom from being brought up again to ensure the quality of purification. The inner wall of the device is clean to prevent dust from accumulating on the inner wall of the outer shell. The device has a better dust removal effect, and the gas cleanliness after dust removal is higher.

The invention discloses an automatic material mixing and rolling device which comprises a machine frame. The machine frame is provided with an upper opposite-rolling mechanism used for conducting primary extrusion on two or more materials, a conveying mechanism and a lower opposite-rolling mechanism used for conducting secondary extrusion on the two or more materials. The conveying mechanism is located between the upper opposite-rolling mechanism and the lower opposite-rolling mechanism, the upper opposite-rolling mechanism is located above the conveying mechanism, and materials sequentially pass through the upper opposite-rolling mechanism, the conveying mechanism and the lower opposite-rolling mechanism. The automatic material mixing and rolling device is low in labor cost, achieves highproduct hardness and has high efficiency.

The invention discloses a novel rice noodle machine, and the novel rice noodle machine is characterized by comprising a rice noodle preparing device, a delivering and cooling device, a rice noodle stacking device and a packaging device connected sequentially from beginning to end, wherein the rice noodle preparing device adopts a spiral material squeezing rod and a purpose-made noodle squeezing mold for squeezing noodles, and adopts heat conduction oil and an electromagnetic heating coil matched for heating, the rice noodle preparing device is installed through two-stage guide rails, and a power mechanism is provided with a tensioning device capable of preventing a material squeezing mechanism from locking; and the delivering and cooling device adopts an odd number of layers of conveying belt components for forming a Z-shaped cooling path. The novel rice noodle machine has the advantages of compact and scientific structure, safe and reliable operation, long service life, short production cycle, high degree of automation, small size, small occupied area of a production site, energy saving, environmental protection, convenient and quick maintenance, convenient disassembly and cleaning and convenient operation; the safety of the produced rice noodles is guaranteed; and the processed rice noodles have high degree of curing, thinness, uniformity, good toughness, difficulty of breaking, smoothness, delicacy, good mouth feel and no adhesion among the rice noodles.

The invention belongs to the technical field of power distribution cabinets, and particularly relates to a dustproof cooling power distribution cabinet which comprises a cabinet body, a ventilation component and a connecting frame. According to the invention, air outside the cabinet body is sucked into the cabinet body through the ventilation component, then the air in the cabinet body flows out of the cabinet body, heat generated by electric appliance assemblies and cables is brought out of the cabinet body, and when the exhaust speed of a first air outlet cannot meet the cooling requirement, a controller controls a first motor to rotate, two connecting frames are driven to swing, and meanwhile, the connecting frames push side doors to rotate, so that air in the cabinet body is discharged outwards from the lower ends of the connecting frames, the air circulation speed is increased, the cooling speed is increased, faults of the electric appliance assemblies and wires caused by too high temperature are avoided, and the probability of faults of the electric appliance assemblies and the wires is reduced; and a first filter screen and a second filter screen prevent dust from entering the cabinet body, so that the dust is prevented from aggravating corrosion of electric appliance assemblies and the wires, and the service life of the electric appliance assemblies and the wires is prolonged.

The invention relates to the technical field of copper-molybdenum separation, in particular to a collecting agent for copper-molybdenum separation, a flotation agent and a flotation method.The collecting agent comprises, by weight, 10-30 parts of a component shown in the formula 1-1 and 10-30 parts of a component shown in the formula 2-1, wherein the structural formulas of the formula 1-1 and the formula 2-1 are shown in the specification, Me and Me1 are H < + > or metal ions, and R1, R2 and R3 are alkyl groups or aromatic groups. The structure of the collecting agent has the characteristic of isoelectric isomer of nitrogen and sulfur, so that the synergistic effect between the two components is realized, and the copper-molybdenum separation effect is effectively improved.

The invention discloses an agricultural machinery belt pulley soil removing device. The agricultural machinery belt pulley soil removing device is simple in structure, and when a large amount of soil is adhered to a belt pulley, an external power source is switched on, a motor is started and drives a disc to rotate, and a sliding block rotates together; meanwhile, the sliding block slides in a strip-shaped through hole in a connecting rod, so that the connecting rod swings back and forth; when the connecting rod swings rightwards, the sliding block abuts against the lower end of the strip-shaped through hole at the moment, a piston moves downwards, the connecting rod swings rightwards and moves downwards at the same time, a pawl can shovel soil on the belt pulley, and meanwhile a limiting block can play a limiting role; and when the connecting rod moves leftwards, at the moment, the sliding block abuts against the upper end of the strip-shaped through hole, and the piston moves upwards, so that the connecting rod moves leftwards and moves upwards at the same time, soil is prevented from being brought into a supporting frame, the soil on the belt pulley is removed through a series of measures, and high practicability is achieved.

The invention relates to the technical field of tail gas emission control of vehicles, and discloses a particulate matter sensor with improved measurement accuracy. The particulate matter sensor is provided with a conductive shell, a cylindrical protective piece and a high-voltage electrode which is arranged in the conductive shell and is insulated from the conductive shell, wherein the conductive shell is grounded; high voltage is applied onto the high-voltage electrode; and a metal shielding layer is arranged in a sealed space and at the periphery of the high-voltage electrode, is grounded and is insulated from the high-voltage electrode. A measurement method for the particulate matter sensor comprises the following steps of: measuring leakage current, capacitance or resistance values between the high-voltage electrode and the conductive shell; and acquiring the concentration of particulate matters in gas to be detected according to a functional relation. The particulate matter sensor with the improved measurement accuracy has high measurement accuracy and long service life; and by the metal shielding layer, interference leakage current is eliminated, and pollutants of which the outside is oxidized and corroded can be prevented from entering an internal space so as not to influence the measurement accuracy and the service life.