49results about How to "Stable mixing ratio" patented technology

The invention discloses a two-component variable-thrust rotary detonation rocket engine based on a pintle injector. The two-component variable-thrust rotary detonation rocket engine based on the pintle injector comprises the pintle injector, a rotary detonation combustion chamber and an exhaust nozzle which are sequentially and coaxially arranged in the axial direction; the pintle injector comprises a center rod inner nozzle, a nozzle adjusting body and an injector shell which are sequentially and coaxially arranged from inside to outside in a sleeving mode; a fuel injection runner is arranged in the center of the center rod inner nozzle, a plurality of fuel injection openings are formed in the head of the center rod inner nozzle in the circumferential direction, and a broken-line-shaped oxidizing agent runner is formed between the outer wall face of the inner side of the nozzle adjusting body and the inner wall face of the injector shell; and the nozzle adjusting body can slide in the axial direction, and therefore the injection area of the fuel injection openings and the sectional area of the oxidizing agent runner are adjusted. According to the two-component variable-thrust rotary detonation rocket engine based on the pintle injector, under the condition that the equivalence ratio is not changed, the flow of a two-component propellant can be changed, thrust can be generated and changed, a fuel flowing area can be stabilized and the combustion rate of fuel can be increased by effectively utilizing a backflow area at the head of a pintle, fuel waste is reduced, and the propellant is saved.

The invention relates to a papermaking method, and particularly relates to a method for producing household paper facial tissue by taking bagasse as a main raw material. The technical scheme is as follows: the bagasse pulp and a small amount of wood pulp at a high ratio are used as main raw materials, wherein the weight ratio of the bagasse pulp to the wood pulp is (65-75):(25-35); five grit removal processes are adopted to adjust the previous and later paper pulp concentration of each piece of equipment; a flexible beating process for fibrillation is adopted; a process of high-speed hot air penetrating through paper sheets is adopted to produce the soft and fluffy facial tissue with high toughness and low cost and meeting the health standard.

A system including an inspection chip equipped with at least a pump connection having a flow path opening for interconnecting to a micro-pump, a flow path through which a fluid flows, and a fluid mixing section for joining and mixing two or more fluids, and including a system body equipped with at least a base body, a chip connection having a flow path opening for interconnecting to the inspection chip, a micro-pump unit in the base body including micro-pumps in substantially the same shape, a detection processor and a controller for controlling at least the functions of the micro-pump unit and the detection processor, and the joining amount ratio is adjusted to set the mixing ratio of two fluids to be joined in the fluid mixing section to be approximately m:n (not 1:1) by making the drive voltages of the micro-pumps substantially equal to each other.

The invention discloses a vacuum pouring device for wind power blade molding, and mainly solves the problems that in an existing technology, an existing pouring process existing process is low in controllability, complex in process, overpowered in experientiality, easy to mix with bubbles, and bad in site environment. The vacuum pouring device for wind power blade molding includes a mould, a resinbarrel, a curing agent barrel, a curing agent quantitative output loop, and a performing body made of dry fiber reinforced materials and laid in the curing agent quantitative output loop. The resin barrel communicates a resin quantitative cycle output loop and a mixing device in sequence. The curing agent barrel communicates the curing agent quantitative output loop and the mixing device in sequence. The mixing device communicates multiple colloid injecting seats used for injecting colloid for the performing body. Through the scheme, the vacuum pouring device for wind power blade molding reaches the goal of being good in controllability and not easy to mix with bubbles, and has a high practical value and a high promotion value.

The invention discloses a plastic cleaning device, and relates to the field of plastic manufacturing. The plastic cleaning device comprises a conical guide cover; a small end of the guide cover is a connecting part matched with a high-pressure water pipe, and a large end of the guide cover is a liquid outlet end; a washing liquid accommodating cavity is formed out of the small end of the guide cover; multiple washing liquid inlets are formed in the side wall of the small end of the guide cover; multiple air inlets are formed in the side wall of the middle part of the guide cover; and an impeller rotationally connected with the guide cover is arranged in the large end of the guide cover. Washing liquid is uniformly distributed in mixed liquid formed in the plastic cleaning device; meanwhile, the mixed liquid contains multiple bubbles; and as the bubbles are larger in surface area, the dirt carrying capacity is better, and the plastic cleaning effect is enhanced.

The present invention aims at providing a kneader capable of eliminating the cleaning process in the kneading process by preventing gushing of the filler through the clearance between the mixing tank and the pressurizing lid, stabilizing the blending ratio of the filler, and preventing defective dispersion due to fall and mixing of filler after the completion of kneading, for promoting improvement of dispersion and uniformity of kneaded materials such as rubber, plastics, etc. as well as stability of quality. In a kneader comprising a mixing tank 1 for storing the kneaded material, a pair of rotors 2, 2 disposed in parallel for kneading the kneaded material stored in the mixing tank 1, and a pressurizing lid 3 inserted slidably in the opening at the top of the mixing tank 1, the sliding portion of the pressurizing lid 3 against the mixing tank 1 is divided into a plurality of stages (upper, lower), packings P1, P2 are disposed for reducing the clearance between the respective pressurizing lids and the side wall of the mixing tank as much as possible, and an air reservoir 33 is formed between said upper and lower lids 31, 32.

The invention relates to a method and a device for dynamic and intelligent control of foamed concrete component proportional mixing. A water flow sensor, a slurry flow sensor and an agent flow sensor are connected with a signal acquisition plate, and the signal acquisition plate is connected with a single-chip microcomputer controller; the single-chip microcomputer controller is also connected with a float detection switch for detecting liquid flow, an agent pump controller connected with an agent pump, a control button, a water inlet solenoid valve, and three frequency converters; the water inlet solenoid valve is connected with a water level upper limit float detection switch F5 in the float detection switch; the frequency converter is connected with a variable-frequency AC motor and a contactor, the other end of the contactor is connected with an air switch, and the other end of the air switch is connected with a three-phase power supply terminal; coils of a contactor KM1, a contactor KM2, a contactor KM3 and a contactor KM4 are connected with the single-chip microcomputer controller. According to the invention, the mixing proportions of various components of the slurry are stable, and do not change with the amount of the feed materials; the labor intensity of operators is reduced; the waste of dry materials, water, and agents is reduced; and the work efficiency is improved.

A burner for a gas stove and a gas stove, wherein the burner includes a nozzle and an injection pipe, the nozzle of the nozzle is aligned with the inlet of the injection pipe, and there is a gap between the nozzle and the inlet; it also includes a fixing bracket for connecting The nozzle and the injection tube; the position where the fixed bracket cooperates with the injection tube is provided with a first connection hole, and the injection tube has a second connection hole corresponding to the first connection hole, which is passed through the first and second connection holes The connecting piece in the fixed bracket is fixedly connected with the injection tube. Compared with the prior art, the present invention enables the gap between the nozzle and the inlet of the injection pipe to be fixed, so that the gas and air have a stable mixing ratio and ensure combustion efficiency.

The invention discloses a sprayer for a farmland, and relates to novel farmland operation machinery. Key points of the technical scheme in the invention are as follows: the sprayer for the farmland comprises a sprayer body; the sprayer body is provided with a water suction pump, a medicine storage box, an infusion pump, a spray rod, a liquid mixing air pump and a pulse valve; the sprayer body is provided with a liquid mixing box; the sprayer body is provided with a pressure limiting device; the sprayer body is provided with a water inlet channel, a filter net and a hydraulic pressure box; a cavity and a barrier plate are arranged in the hydraulic pressure box; the barrier plate is provided with an adjusting spring; the barrier plate is provided with an adjusting rod; the infusion pump is provided with a communication pipeline; the communication pipeline is provided with a non-rising-stem valve; and the adjusting rod is provided with a driving mechanism. Due to arrangement of the mixingair pump and the liquid mixing box, medicine liquid is sufficiently mixed with a water body, so that the use effect of the medicine liquid is better; due to arrangement of the pressure limiting device, the amount of the medicine liquid sprayed by the sprayer is relatively steady; and, due to arrangement of the hydraulic pressure box, the adjusting rod and the driving mechanism, the mixing ratio of the medicine liquid to the water body can be relatively steady.

The invention provides a liquid material output method adopting metering pumps. The liquid material output method comprises the following steps that N metering pumps used for correspondingly conveyingN kinds of liquid materials are provided, wherein each metering pump comprises a cylinder body and a piston assembly, each cylinder body comprises a fixed cylinder and a cylinder body moving plate, and a cylinder body opening is formed in each fixed cylinder; each cylinder body moving plate is arranged at the corresponding cylinder body opening in a sliding mode, and a cylinder body space is defined by each cylinder body moving plate and the corresponding fixed cylinder; each piston assembly comprises an actuator plate and a piston telescopic part, each actuator plate is arranged on the corresponding fixed cylinder in a sliding mode, each piston telescopic part is connected to the corresponding actuator plate and is in sliding contact with the corresponding fixed cylinder and the corresponding cylinder body moving plate so as to form a closed space for accommodating the liquid material in the cylinder body space; the cross sectional area of the corresponding closed space is adjusted through the movement of the cylinder body moving plates and the stretching of the piston telescopic parts; and the actuator plates of the N metering pumps are driven to synchronously move, and the liquid feeding amount of each liquid material is the product of the cross sectional area of the corresponding closed space and the movement distance of the corresponding actuator plate. The liquid material output method can ensure that the mixed proportion of various liquid materials is stable.

The invention discloses continuous and synchronous mixing equipment for modified resin. The continuous and synchronous mixing equipment for modified resin is provided with a resin storage tank, a curing agent storage tank, a resin pump, a curing agent pump, a resin three-way valve, a curing agent three-way valve, a static mixer and a pump driving mechanism. The continuous and synchronous mixing equipment can operate in an internal circulation state and a glue mixing state by controlling the resin three-way valve and the curing agent three-way valve. According to the continuous and synchronousmixing equipment, epoxy resin and a curing agent can be continuously mixed in an accurate and stable mixing proportion, the mixing proportion of the epoxy resin and the curing agent can be kept accurate and stable when the cemented epoxy resin is switch to the output starting state from the output stopping state, the automatic mixing procedure of the epoxy resin and the curing agent is achieved, and the requirement for continuous construction of thin epoxy pavement layers can be met; and operation is easy, the labor intensity is greatly lowered, the construction efficiency is improved, and thecontinuous and synchronous mixing equipment can be widely applied to pavement projects of thin epoxy of various pavements and bridges such as highways and roads in cities and towns.

The invention discloses a gear machine pumping-in type foam proportional mixing device. The gear machine pumping-in type foam proportional mixing device includes a hydraulic driving gear-type water turbine, a foam rotor pump which is connected with a driving output shaft of the hydraulic driving gear-type water turbine through an intermediate bearing mechanism, and a fire protection mixed liquor leading-out mechanism which is connected with a water outlet of the hydraulic driving gear-type water turbine and a liquor outlet of the foam rotor pump. The hydraulic driving gear-type water turbine is of a master-slave double-gear structure, and a constant gap is set between two gears constituting the master-slave double-gear structure. The foam rotor pump is of a master-slave double-rotor structure, and a constant gap is set between two rotors constituting the master-slave double-rotor structure. A main rotating shaft connected with a driving gear in the hydraulic driving gear-type water turbine forms the driving output shaft to be connected with a main rotating shaft in the foam rotor pump. According to the gear machine pumping-in type foam proportional mixing device, the hydraulic driving gear-type water turbine and the foam rotor pump are designed into a whole, cost is low, the structure is compact, the size is small, using is convenient, and due to the high volume efficiency, the system can consume lower fire protection water pressure.

The invention provides a smoke distributing device and a smoke distributing assembly for reducing nitride emission of a heat accumulating type burning industrial furnace and the industrial furnace. The industrial furnace comprises a burner, a draught fan for supplying combustion air and a smoke discharging pipe; the draught fan is provided with a draught fan inlet connected with the smoke distributing device; the smoke distributing device comprises a barrel-shaped body, a plurality of air inlets and an adjusting device, the barrel-shaped body has a first end used for being connected with a smoke backflow pipe, a second end connected to the draught fan inlet and a side wall between the first end and the second end, a smoke backflow pipe guides smoke in the smoke discharging pipe to flow back to the draught fan; the multiple air inlets are formed in the side wall for guiding in external air; the adjusting device is used for adjusting the air inlet areas of the multiple air inlets so as to allocate the mixing ratio of smoke and air in advance; and when the smoke backflow pipe and the smoke distributing device are connected to the industrial furnace, the backflow smoke and introduced air are mixed into combustion air by means of the negative pressure of the draught fan inlet before introduced into the draught fan inlet. By means of the smoke distributing device, the smoke distributing assembly and the industrial furnace, the nitride in discharged smoke is greatly reduced.