64results about How to "Not easy to blow out" patented technology

The invention discloses a clothes dryer comprising a barrel containing clothes, a condensate channel communicated with barrel space, a water inlet pipe connected with the condensate channel to supply cooling water to the same and a fan promoting air to flow from the barrel to the condensate channel. The condensate channel has a lower arm in a low position and connected with the barrel, and an upper arm in a high position and connected with the fan; an air outlet is formed in the top of the upper arm; the lower arm and the upper arm are relatively folded; an extending path of the lower arm does not fall into the air outlet; the condensate channel is divided into two parts being folded to each other, and then a flow direction of air is changed in a bend parts; water drops carried in the air can be stuck to a channel wall when touching the channel wall; the extending path of the lower arm does not fall into the air outlet, so an extending direction of the lower arm is fully blocked by the upper arm; and the water drops carried in the cooled air can be mostly blocked by the upper arm.

The invention provides a fuel-atomizing integrated igniter which comprises an air plasma igniter and a fuel-atomizing jetting component, wherein the air plasma igniter is mainly composed of an inner electrode, a grounding electrode, an insulating medium and a power supply connector; the fuel-atomizing jetting component is mainly composed of a fuel-atomizing component shell and fuel-atomizing components; each of the fuel-atomizing components comprises a swirler shell and a swirler mounted in the swirler shell; the fuel-atomizing component shell is of annular shape; the plurality of fuel-atomizing components are uniformly distributed in the annular fuel-atomizing component shell; the annular fuel-atomizing component shell is provided with a fuel inlet; a fuel filter is arranged on the fuel inlet; the air plasma igniter is located in the annular fuel-atomizing component shell; an air guiding hole is formed on the grounding electrode; and the fuel-atomizing component shell and the grounding electrode are integrally connected through a pressing cover. The fuel-atomizing integrated igniter is applied to the field of thermal energy and power engineering; the generation of the conditions, such as, retrocession of an ignition source, flame blow-out, and the like, caused by horizontal jetting is avoided; and the reliability of ignition is increased.

The invention discloses a method and a device for capturing water bloom cyanophytes by using a trap. The method comprises the following steps of: A, arranging a floating fence to form a horn mouth shape at a perennial leeward port of a lake or a reservoir; B, arranging a movable fence at the position at a distance of 20 meters from the bottom of the horn mouth so as to form a trapezoid or square cyanophytes gathering trap at the bottom; C, when wind is blown to the inside of the horn mouth, opening the movable fence to make algal bloom enter the trap, when the wind is blown reversely, closing the movable fence to prevent the algal bloom entering the trap from being blown out by the wind, and capturing the cyanophytes at the bottom of the trap; and D, arranging waterproof cloth serving as a skirt curtain below the floating fence so as to prevent the algal bloom from escaping from the bottom of the floating fence, and straightening downwards and fixing the skirt curtain by using an anchor. The device for capturing the water bloom cyanophytes is characterized in that: a foam plastic cylindrical buoy is connected with the skirt curtain; the skirt curtain is connected with an iron hoop; and an anchor line is respectively connected with the iron hoop and the anchor. The device for capturing the water bloom cyanophytes has the advantages of easy method, simple and convenient operation, high efficiency of capturing the water bloom cyanophytes, simple structure, low price and high capturing efficiency. The method and the device are widely suitable for capturing the water bloom cyanophytes in the lake, the reservoir and the like.

The invention discloses a granular compounded organic fertilizer which comprises the following raw materials in parts by weight: 60-80 parts of livestock manure, 30-50 parts of manioc wastes, 12-25 parts of sugar plant filter mud, 5-10 parts of medicine dregs, 40-60 parts of white mud, 1-5 parts of potassium fulvic acid, 5-10 parts of an inorganic fertilizer, 1-5 parts of biological bacteria, 5-10 parts of fermentation bacterial and 1-5 parts of a compound aid, wherein the weight ratio of nitrogen and phosphorus to potassium in the inorganic fertilizers is 15:(3-8):(8-12). The invention further provides a preparation method of the granular compounded organic fertilizer. As the granular compounded organic fertilizer is prepared from agricultural wastes through two times of fermentation, wastes can be turned into wealth, and the problem of organic matter environment pollution can be solved; due to the addition of inorganic fertilizer components, and appropriate proportions of elements of nitrogen, phosphorus and potassium, a good fertilizer effect can be achieved, and nitration absorption of plants can be promoted; the prepared granular compounded organic fertilizer is good in organic fertilizer effect, is capable of loosening soil and powerfully ensures that high-yield, safe, high-quality and efficient agricultural products can be produced.

The invention provides desulfurization and defogging equipment, which comprises a waste gas desulfurization structure and a waste gas defogging structure, wherein the waste gas desulfurization structure comprises a desulfurization shell; at least one desulfurization component is arranged in the desulfurization shell; the desulfurization component comprises a high-pressure water pipe and a screen cloth component arranged by facing the high-pressure water pipe; the high-pressure water pipe injects current to knock the screen cloth component to generate a water curtain and sprays; the waste gas defogging structure comprises a defogging shell and at least one defogging component arranged in the defogging shell; the front side of the defogging component is arranged by facing a waste gas airflowdirection; the waste gas is desulfurized and purified by the waste gas desulfurization structure to enter the defogging shell, and the temperature and the water mist of the waste gas are absorbed bythe defogging component to realize the cooling and the defogging of the waste gas. The invention provides the desulfurization and defogging equipment, and a traditional spray type waste gas processingstructure is optimized to improve the desulfurization and defogging effect of the waste gas processing structure.

The invention discloses a knapsack directional spray device for fruit trees. The knapsack directional spray device is characterized in that two straps are respectively arranged at the left end and the right end of the front side of a tank, the lower portion of a pool extends into the tank, and the upper end of the pool is supported at the upper end of the tank; a feed inlet is formed in the top of the pool, and an electric fan is arranged on the top of the pool; a discharge outlet in the top of the pool is connected with one end of a spray hose, a spray nozzle is connected to the other end of the spray hose, and a discharge portion of the spray nozzle is in the shape of a flared opening; an ultrasonic atomization assembly is arranged in the tank and is positioned below the pool, and liquid in the pool can be atomized by the ultrasonic atomization assembly to obtain mist. The knapsack directional spray device has the advantages that the knapsack directional spray device can be accurately pointed to tree leaves or fruits which required to be sprayed, and is excellent in directional property, and normal growth of crops can be effectively guaranteed; the knapsack directional spray device is small in spray area, the mist cannot be easily blown away by contrary wind, and accordingly operators can be effectively prevented from being poisoned due to mist inhalation; the knapsack directional spray device is of a knapsack structure, the pool is small in capacity, and accordingly the knapsack directional spray device is portable and is applicable to spraying pesticides to orchards with small areas.

The invention discloses a water-based forest and building fire disaster fire extinguishing agent and a preparing method thereof. The water-based forest and building fire disaster fire extinguishing agent comprises following raw material components including, by weight, 5-10 parts of water-based phosphorus nitrogen polyester fire retardant, 1-3 parts of potassium sulphate, 1-3 parts of sodium metaaluminate, 15-20 parts of water-based bentonite, 1-3 parts of water-based rosin emulsion, 0.3-0.8 part of triethanolamine, 1-3 parts of phytic acid, 0.1-1 part of polyvinyl alcohol, 0.5-1 part of sodium dodecyl sulfate, 0.1-0.5 part of an anti-settling agent YH-C, 0.1-0.5 part of sodium carboxymethyl cellulose, 3-6 parts of urea and 5-10 parts of polysiloxane emulsion, and a proper amount of water is adopted. The water-based forest and building fire disaster fire extinguishing agent is free of toxicity and pollution, fire extinguishing is rapid, fireproof isolation can be rapidly and effectively formed, and fire behavior spreading is prevented.

The invention provides a gas-state fuel cyclone integrated igniter, comprising a plasma igniter which is mainly formed by an inner electrode located at the center, a grounding electrode located outside the inner electrode, an insulating medium between the inner electrode and the grounding electrode, and a power supply connector, and further comprising a gas-state fuel cyclone device assembly which is mainly formed by a cyclone device assembly shell and cyclone devices mounted inside the cyclone device assembly shell, wherein the cyclone device assembly shell is annular; a plurality of the cyclone devices are uniformly distributed in the annular cyclone device assembly shell; the annular cyclone device assembly shell is provide with a gas-state fuel gas inlet; the plasma igniter is located in the annular cyclone device assembly shell; the grounding electrode is provided with a plurality of tangential gas inlet small holes; and the cyclone device assembly shell and the grounding electrode are integrally connected through a pressing cover. The gas-state fuel cyclone integrated igniter is applied to the field of heat energy and power engineering, can realize the reliability of ignition, and guarantees that a combustion speed reaches to a stable state.

The invention discloses a method for a nanosecond laser to induce plasma to improve a stable combustion limit of gas hydrocarbon fuel and a device for achieving the method, and relates to the method for improving the stable combustion limit of the gas hydrocarbon fuel and the device for achieving the method. The problems that in an existing combustion system with supercritical airflow velocity, combustion is not stable, and flames are easy to blow out are solved. The method comprises the steps of filling mixed combustible gas in a pre-mixing pot in a quartz tube, igniting the mixed gas at the mouth of the quartz tube, forming a Bunsen burner flame, enabling the flow velocity of the mixed combustible gas to be in a supercritical state, adopting the nanosecond laser to emit laser beams, focusing the laser beams of the nanosecond laser on a non-combustion area of the mixed combustible gas, inducing the mixed combustible gas to generate the plasma, and achieving the improvement of the stable limit of the flame. According to the device, the air outlet of the pre-mixing pot is communicated with the tail end of the quartz tube, and lasers generated by an Nd:YAG laser are focused on the gas outlet of the quartz tube. The method for the nanosecond laser to induce the plasma to improve the stable combustion limit of the gas hydrocarbon fuel and the device for achieving the method are suitable for improving the stable combustion limit of the gas hydrocarbon fuel.

The nanometer tyre capable of keeping running in case of leakage consists of tyre tread, tyre body, inner rubber layer, tyre ring, rubber belt and valve. The tyre tread is made of cast nanometer polyurethane rubber with high wear resistance and high heat stability; the tyre body is made of cast nanometer polyurethane rubber or other rubber with high elasticity, high toughness and high heat resistance; the inner rubber layer is made of regenerated rubber or other rubber material and cord thread; and the tyre ring inside the tyre body is made of steel wire material or high strength nanometer fiber material. The tyre has great whole thickness, high strength, high wear resistance, high elasticity and other advantages, and can keep running for some distance in case of leakage to ensure the safety. The present invention is suitable for different kinds of vehicles.

The invention relates to automobile accessories, in particular to an on-board ashtray and an automobile with the same. As partition plates are arranged in an ash storage area and through holes in adjacent partition plates are staggered each other, airflow is not easy to enter the ashtray storage area after entering a cigarette butt storage area, ash at the bottom of the ash storage area is difficult to be blown out of the ash storage area by the airflow even the airflow enters the ash storage area; therefore, ash in the on-board ashtray is effectively prevented from raising inside the automobile and the on-board ashtray is convenient to use. By the aid of the partition plates, for preventing ash from raising inside the automobile, arranged in the on-board ashtray, the ash in the ashtray cannot raise inside the automobile and safety performance of the automobile is improved.

The invention discloses a burner and belongs to the field of fine coal gasification. The burner comprises a back segment steel component and front segment whole ceramic precast components, wherein the back segment steel component comprises a fuel gas sleeve, an air sleeve, fine coal sleeves, gasification agent sleeves and an ignition electrode stem; the front segment whole ceramic precast components are of a structure containing a conical surface and comprise front segment burning channels, a front segment gasification agent channel and front segment pulverized coal introducing channels which have a same ring, and the front segment burning channels comprise flame stabilization segments with sandglass-shaped inner cavities; the flame stabilization segments are communicated with an air channel, the front segment pulverized coal introducing channels are communicated with a back segment pulverized coal introducing channel, and the front segment gasification agent channel is communicated with a back segment gasification agent channel; the outlet of the front segment gasification agent channel and the outlets of the flame stabilization segments are both parallel to the center axis of the front segment whole ceramic precast components, and the outlet directions of the front segment pulverized coal introducing channels expand and incline towards the side of the outlet direction of the front segment gasification agent channel. The burner solves the problems of difficult ignition and easy fire cutoff and has the advantages of high ignition success rate, good flame stability, high temperature resistance and wear resistance.

The invention relates to single-box drying equipment with the uniform heating function. The single-box drying equipment comprises a box body, a cavity is formed inside the box body, a heat insulation layer is arranged on the inner wall of the box body, an exhaust fan extracting air from the cavity is fixedly arranged at the upper end of the box body, and a plurality of infrared heating devices are arranged on the inner side of the heat insulation layer and are attached to the inner wall of the heat insulation layer in a surrounding mode; a PLC control cabinet is arranged on one side of the box body and is connected to the infrared heating devices through circuits; a plurality of material trays capable of being extracted are arranged inside the cavity, the material trays of the odd layers are detachably connected to the inner wall of one side of the box body, the material trays of the even layers are detachably connected to the inner wall of the other side of the box body, a roundabout airflow channel is formed among the material trays, and the material trays are gauze trays with wooden frameworks; an air inlet is formed in the lower part of the box body. Compared with the prior art, the single-box drying equipment has the advantages that heating is uniform, the drying quality of materials is uniform, the drying efficiency is high, and the cost is low.

The invention discloses a directional spraying method for fruit tree and is characterized in that the directional spraying method for the fruit tree comprises the following steps: a, adopting a directional spraying device, the directional spraying device comprises a box body, a medicine pool, a fan and a spraying nozzle; b, filling the medicine liquid into the medicine pool through the medicine inlet and pushing the directional spraying device in the orchard; c, starting the fan and an ultrasonic atomization assembly, the medicine liquid is atomized into the medicine fog by the ultrasonic atomization assembly, spraying the medicine fog via a spraying soft pipe; the operator can adjust the angle of the spraying soft pipe for aiming the spraying nozzle at the fruits or leaves on the each fruit tree for spraying the pesticide. The directional spraying method for the fruit tree can exactly spray the leaves or fruits with good directing property for guaranteeing the normal growth for the crops, the spraying area is small, thereby the medicine fog will not be blew away by the against wind, the operator can be effectively avoided for poisoning for intake of the medicine fog, and the defect of prior art can be overcome commendably.

The invention discloses a dust leakage preventing lapping structure, which overcomes the defects in the lapping parts of the present vibration groove. In the dust leakage preventing lapping structure, the vertical distance between the upper parts and the lower parts of adjacent vibration grooves is reduced; windshields are additionally arranged at the lapping parts of the vibration grooves for shielding the dust raising action of air current on smoke foam dust from three lateral surfaces; a cut tobacco folding structure is additionally arranged at the lapping part between the upper vibration groove and the lower vibration groove; the thickness of cut tobacco on the vibration groove is increased; and the trend of the cut tobacco is limited to a certain degree, so that the cut tobacco advances according to the preset trend as much as possible. The dust leakage preventing lapping structure of the vibration groove is simple and practical without greatly changing the traditional vibration groove; the leaked dust and raising dust can be effectively reduced; the work environment is improved; materials are saved; and the dust leakage preventing lapping structure has a wide application prospect.

The invention discloses a combustible special mosquito-repellent incense box which is characterized in that a box body has two opposite side surfaces, namely, a box body left side surface and a box body right side surface, the box left side surface extends toward the inside of the box body to form an upward left opening shape, the bottom of the left opening shape is hollowed, the right end surface of the left opening shape is a vertical surface, a plurality of small bulges are arranged on the inner side of the vertical surface, the box right side surface extends toward the inside of the box body and penetrates through the opening of the lower part of the right end surface of the left opening shape to form an upward right opening shape, the bottom of the right opening shape is hollowed, the left end surface of the right opening shape is a vertical surface, a plurality of small bulges are arranged on the inner side of the vertical surface. The combustible special mosquito-repellent incense box has the advantages that the mosquito-repellent incense can be utilized to the maximum extent by the aid of the mosquito-repellent incense box design, remaining mosquito-repellent incenses with different shapes can burn sufficiently, at the same time, the use process is very simple, the user experience is excellent, cleaning is easy, the structure is simple, and the cost is low.

The invention relates to a fuel gas distribution device and a combustion control method of a water heater using the same. The fuel gas distribution device comprises a shell, a first electromagnetic valve, a second electromagnetic valve, a compartment and a cover plate, wherein a first distribution cavity and a second distribution cavity are arranged in the shell, a first gas inlet for fuel gas toenter the first distribution cavity and a second gas inlet for the fuel gas to enter the second distribution cavity are formed in the shell, first nozzles, second nozzles and third nozzles are sequentially arranged on the shell at intervals, the compartment is arranged in the first distribution cavity, the first nozzles and the second nozzles are separated, the first nozzles are enclosed in the compartment, the side wall of the compartment is provided with a through hole for air flow of the first gas inlet to enter the compartment, and the cover plate is positioned in the first distribution cavity, movably arranged at the position of the through hole and can generate position change relative to the through hole so as to open and close the through hole. Therefore, redundant heat in the firetransferring process can be reduced when sectional fire power from big fire to small fire is switched.

The invention discloses a safe and energy-saving pricking-prevention low-hysteresis tire. The tire is mainly composed of an inner ring, a bent beam support object and an outer rubber tire, wherein the inner ring is positioned at the innermost side, is round, and plays the role of connecting a rim and the bent beam support object; the bent beam support object is formed by the rotational and symmetrical arrangement of a plurality of bent beam components which are same in shape and are made of low-elastic-hysteresis materials between the inner ring and the outer rubber tire by taking a wheel shaft as the center, can play the role of supporting as well as can replace the rubber side wall of an inflated tire to transmit power, and also reduces the energy and power loss due to elastic hysteresis as far as possible; while the outer rubber tire is braced to the outer side of the bent beam support object, and can play roles of buffering, damping and reducing the abrasion of the bent beam, and can wrap the integral or partial of the tire in necessity so as to insulate dustiness. The safe and energy-saving pricking-prevention low-hysteresis tire can be used for solving the problems that the traditional inflation type tire is easy to prick and explode, is high in elastic hysteresis and the like, and the vehicle driving safety and energy conservation are improved effectively.

The present invention discloses a multi-source obliquely-inserting type plasma gas treatment apparatus, which comprises a gas inlet channel, a deceleration chamber, a gas treatment zone, a gas discharging absorption device and plasma sources, wherein the upper end of the gas treatment zone is sequentially connected to the deceleration chamber and the gas inlet channel, the lower end of the gas treatment zone is connected to the gas discharging absorption device, the gas treatment zone comprises a plurality of gas treatment chambers connected in a layered manner, plural rows of plasma source inserting ports communicated to the gas treatment chamber are arranged along the circumferential directions of each gas treatment chamber, the plasma source inserting ports are respectively provided with the plasma sources, and the included angle formed between the axial line of the plasma source and the center axis of the gas treatment chamber is an acute angle. According to the present invention, in the case of the large flow rate gas inlet, the plurality of the plasma sources simultaneously work, and each plasma can be fully contact the gas to be treated, such that the gas treatment effect and the gas treatment efficiency of the plasma are substantially improved; and the multi-source obliquely-inserting type plasma gas treatment apparatus has advantages of simple structure, high spatial utilization rate, easy maintenance, and easy repair.

The invention relates to a pre-mixed type anti-interference ignition gun for an industrial burner. The pre-mixed type anti-interference ignition gun comprises an outer casing pipe and a central pipe, wherein a basic function section provided with a combustion air inlet, a lengthened and distinguished pre-mixing function section and a windproof function section consisting of a conical combustion section and an annular windproof section are arranged on the outer casing pipe; and the central pipe comprises a tail end fuel gas inlet, a middle fuel gas channel cavity and a front end seal bottom, fuel gas spray holes are formed in the cavity wall, an ignition electrode with the straight front section and a flame detector provided with a probe are fixed on the outer surface, and a metal limit flame stabilizing plate is fixed at the top end. The gas fuel and the combustion air are mixed in advance in the pre-mixing function section cavity, the ignition electrode ignites mixed gas by aligning to the flam stabilizing plate, and produced ignition flame is protected by the windproof function section, so that the defects that the conventional ignition gun is low in ignition success rate, the ignition flame is easy to blow out and the burn-off rate of fuel gas is low are overcome effectively, the overall working stability of the ignition gun is improved, the requirements for environment protection and energy saving are met, the safe operation of an industrial boiler is guaranteed, and the pre-mixed type anti-interference ignition gun for the industrial burner has very high practicability.

The invention relates to a carriage for a coal conveying train. The carriage comprises a box body with an opening in the top. The carriage is characterized in that a liquid storage pot is arranged on the inner side wall of the box body, a liquid outlet is formed in the bottom of the liquid storage pot, a liquid inlet is formed in the upper portion of the side wall of the liquid storage pot, and an air outlet is formed in the top of the liquid storage pot. The liquid outlet in the liquid storage pot is connected with a spraying main pipe through a water pipe, and the water pipe is provided with a water pump. The spraying main pipe is horizontally arranged and located above the opening of the box body. Nozzles are evenly distributed on the spraying main pipe in the longitudinal direction. Inner cavities of the nozzles are communicated with an inner cavity of the spraying main pipe. Spray openings of the nozzles face towards the opening of the box body. The water pump is connected with a controller through a wire. When the carriage is full of coal to be connected to the train for conveying, pollution caused to the environment is small, and traffic potential safety hazards are avoided.

The invention belongs to the field of internal combustion engines, and provides a stratified combustion type spark ignition type triangle rotor engine. The stratified combustion type spark ignition type triangle rotor engine comprises a cylinder body and a triangle rotor, the side surface of the cylinder body is provided with an oil nozzle and a glow plug in an inserting mode, the glow plug is located above the oil nozzle, the inner side wall of the cylinder body is provided with a precombustion chamber, and the end of the oil nozzle and the end of the glow plug are both located in the precombustion chamber; the triangle rotor is movably arranged in the cylinder body, an air feeding chamber, a compression chamber and an air exhausting chamber are formed between the triangle rotor and the inner wall of the cylinder body, the three side walls of the triangle rotor are provided with combustion chambers which are each of a tongue-shaped structure, one of the combustion chambers communicates with the compression chamber, and the compression chamber communicates with the precombustion chamber; and oil sprayed through the oil nozzle can be diffused into the precombustion chamber and the combustion chambers, and the oil in the precombustion chamber can ignite oil-liquid mixing gas in the combustion chambers after being combusted. Compared with the prior art, the stratified combustion type spark ignition type triangle rotor engine has the advantages that the ignition reliability and stability of the triangle rotor engine are improved.

The invention discloses a powder spraying system convenient to clean. The powder spraying system convenient to clean comprises a spraying chamber body sued for enclosing a spraying region, an automatic spray gun system, an air extraction system and vertical reciprocating devices; each vertical reciprocating device comprises a spray gun beam arranged on the side surface in the spraying chamber bodyand a connection arm used for connecting the spray gun beam with each vertical reciprocating device; the automatic spray gun system comprises a plurality of automatic spray guns arranged on the spraygun beams respectively; and the spraying chamber body is provided with spray gun beam opening grooves through which the connection arms penetrate respectively. A powder leakage channel is arranged ateach spray gun beam opening groove only to reduce the powder leakage quantity, and the powder is difficultly blown out to an external space of a spraying room during cleaning, so that the color change cleaning efficiency is high, a color change cleaning work is rapid, the powdering efficiency of each automatic spray gun is more efficient, and each spray gun bean is selectively equipped with a cleaning device; and each vertical reciprocating device has a function of carrying the corresponding automatic spray gun to perform vertical reciprocating motion and a function of carrying each cleaningdevice in a spraying chamber at the same time, so that the color change cleaning time is further shortened, and the spraying efficiency is improved.

The invention discloses a frame type Christmas snowfall simulation device which consists of a fan, a snow collecting hopper, a snow conveying pipe, simulated snow, a fame and a cover body, wherein the frame is formed by assembling a strip-shaped connecting rod and a joint which are detachably connected, the cover body is arranged on the frame, the snow collecting hopper is positioned at the lower end of the cover body, an air outlet of the fan is arranged at the bottom of the snow collecting hopper and opposite to the lower end of the snow conveying pipe, and the upper end of the snow conveying pipe is arranged at the upper end of the frame and the cover body. The frame type Christmas snowfall simulation device has the advantages of variable size, variegated shape, low cost, convenient packaging and transportation, firm structure, capability of being suitable for landing placement and hanging placement, clear and real snowing effect, attractive shape and appearance decoration and capability of being conductive to enhancing the Christmas atmosphere.

The invention discloses a folder. The folder comprises a lower panel, a clip is arranged at the top of the lower panel, a cylindrical slide bar is arranged along the edge of one side of the lower panel, and a paper cutting knife is hinged to the slide bar and in slide fit with the slide bar. When the folder is used, the position, on the slide bar, of the paper cutting knife is firstly adjusted so that the paper cutting knife can coincide with a tearing line on paper, the paper cutting knife is then pressed, and the part below the tearing line of the paper is torn off. The folder can integrally tear off the part needing to be torn off on the paper in an accurate-position mode and has the advantages of being simple in structure and convenient to operate. In addition, a clamp spring is arranged at the hinged position of the paper cutting knife and the slide bar, the paper cutting knife can be attached to the lower panel when not in use, so that files on the lower panel are not prone to being blown away, and namely the folder has the function of a paperweight.

The invention discloses a hand pulled garbage collection device which comprises a base and a recovering cylinder, wherein the recovering cylinder is fixedly connected onto the upper surface of the base; universal wheels are fixedly connected to the bottom of the base; a pulling handle is fixedly connected to the top of the base; a movable door is movably connected to the bottom of an outlet in theright side surface of the recovering cylinder through a pin shaft; the other end of the movable door is connected to the top of the right side of the recovering cylinder in a clamping manner; a square hole is formed in the right side of the top of the recovering cylinder; a movable groove is formed in the inner wall on the left side of the square hole; and a sliding groove is formed in each of the top and the bottom of the inner side of the movable groove. Through the mutual cooperation of the base, the recovering cylinder, the movable door, sliding blocks, an adjusting block, a square plate,a reset spring, a rope, a fixed block, a fixed pulley and a pull ring, the problem that an existing hand pulled garbage collection device is inconvenient to use is solved, and through the mutual cooperation of the base, the recovering cylinder and the movable door, the problem that garbage in an existing hand pulled recovering cylinder is inconveniently poured out is solved.

The invention discloses an environment-friendly dust depressor and a preparation method thereof and belongs to the field of environmental pollution treatment. During preparation of a water-absorbing activator, konjac powder is purified by a citric acid solution, so that the solubility is increased, the solution viscosity is increased, and stable swelling in the water absorbing process is guaranteed. Acrylic acid and acrylamide are used as functional monomers to form a gel network of the water-absorbing activator, so that moisture molecules in the structure cannot separate and leave, the moisture absorbing amount from the air or other ways is increased, and dust depression can be realized effectively. A wetting activator is prepared from allyl alcohol polyether and others raw materials, theadsorption performance of the water-absorbing activator with dust is improved, and the contact area is increased; a kelp homogenate and polyvinyl alcohol are used as a film-forming activator, the scouring resistance of a formed film is improved, and a film-forming substance can be biodegraded and cannot cause secondary pollution to the environment. The problems of short dust depression time and low moisture retention efficiency of existing dust depressors are solved.

The invention belongs to the field of combustible gas burning stoves, and in particular relates to a gas energy-saving burner, which includes an outer stove (1) and an inner stove (2); an assembly channel opening (4) is provided at the bottom of the inner stove (2); A gas fire ring (5) is provided in the middle of the inner stove (2); a small gas supply pipe (7) is provided in the gas air inlet passage (6) and the blower pipe inlet (3); a small gas supply pipe (7) A dustproof cap (8) is provided at the end of the stove; a main gas inlet pipe (10) is arranged horizontally between the outer stove (1) and the inner stove (2); the gas supply port of the main gas inlet pipe (10) is connected with the gas inlet The annular gas distribution cavity (11) between the channel (6) and the assembly channel port (4) communicates; the outer wall of the annular gas distribution cavity (11) is provided with a main gas outlet (12). The invention has obvious energy saving and environmental protection effects, excellent wind resistance performance, high safety factor, waterproof, uniform flame, deflagration proof and wide application range.