45results about How to "Improve premix effect" patented technology

The divisional application discloses an improved vibrating premixed concentrate burner, comprising an oxygen supply tube, a hollow ring-shaped dispersing pipe, and a tapered process windbox forming achamber; wherein the oxygen supply tube, the dispersing pipe and the windbox are coincided in core and are vertically arranged in a sleeving mode, the outer wall of the dispersing pipe is sleeved witha feed box which is obliquely opening at the top thereof, and the top of the hollow ring-shaped dispersing pipe is fixedly secured to a horizontal fixing plate, and the end, far away from the dispersing pipe, of the fixing plate, is fixedly connected an air hammer vibrating device for vibrating a nodule by driving the dispersing pipe to move reciprocally up and down; a feed inlet premixed tuyerefacing upwardly is arranged in a lower side of the feed box; a process wind-swirling device enabling air to premix concentrate powder tangentially is arranged in an inlet of the process windbox; an independent premixed air pipe and an air-beam premixed device, leading to the bottom of the feed box, are also arranged in the dispersing pipe, and an inward rotating air pipe, leading to an outlet, isarranged on an outer side of the feed box. According to the invention, the vibrating premixed concentrate burner is capable of effectively reducing the nodules and improving the combustion effect of the copper concentrate.

The invention relates to an improved method for the titanium ore acidolysis through sulfuric acid in the process of producing titanium white through a sulfuric acid process. The method is characterized in that: the method comprises the following steps: firstly premixing dilute waste acid produced by titanium white production after concentration and trash extraction with the titanium ore; and thenadding the premixed ore slurry into an acidolysis pot, and then adding concentrated sulfuric acid so as to initiate a main reaction through the dilution heat produced by the added concentrated acid. The method has the advantages of: 1) improving the reutilization amount of titanium white waste acid and reducing the cost of concentrated waste acid; 2) removing a sulfuric acid cooling link so as tosimplify the operation; 3) improving the operational conditions of premixing and acidolysis so as to reduce the risk of technical accidents; and 4) strengthening the premixing intensity, improving the premixing effect, so that the acidolysis reaction is sufficient and the acidolysis rate is remarkably improved.

The invention provides a micro diffuse type combustion apparatus for a micro-thermphotoelectric system. The micro diffuse type combustion apparatus for the micro-thermphotoelectric system comprises an ignition device, an external sleeve, an internal sleeve and an upper panel, wherein the internal sleeve is positioned in the external sleeve; the upper panel is arranged at the top end of the external sleeve; the internal sleeve is a flared structure with big lower end; the lower end of the internal sleeve is provided with a porous bottom plate; the circumferential wall of the lower part of the internal sleeve; the interior of the internal sleeve is a preheating premixing chamber; a combustion chamber is formed between the internal sleeve and the external sleeve; the preheating premixing chamber is communicated with the combustion chamber through a porous wall and the porous bottom plate; and a gas exhaust opening, an air inlet and a fuel gas inlet are formed in the upper panel. According to the invention, as air enters the porous material from various surfaces, a temperature field is uniform and the combustion is enhanced to increase the device power; through the adoption of special combustion chamber wall surface design, heat obtained by the whole wall surface is much and uniform; the micro diffuse type combustion apparatus can stably respond to fine air inlet pulsation and combustion pulsation; and meanwhile, through the adoption of the porous material with reducing aperture, tempering and backflow problems of the porous material are also avoided.

The invention relates to a fuel-cooled type evaporating pipe structure. The evaporating pipe structure is applicable to engines and combustion chamber components of other burners, a closed fuel cooling cavity is formed between an evaporating pipe inner sleeve and an evaporating pipe outer sleeve, a fuel inlet pipe extends into the fuel cooling cavity in the outlet section position of the evaporating pipe, at least one row of fuel nozzles evenly distributed in the circumferential direction are arranged along the inlet section of the evaporating pipe inner sleeve, grooves communicating with one another are formed in the outer surface of the evaporating pipe inner sleeve, and fuel is delivered to the outlet section from the inlet section of the fuel cooling cavity along the grooves and is sprayed into the evaporating pipe at the inlet section. According to the structure, the fuel arrives at the fuel nozzles at the inlet section of the evaporating pipe from the inner cavity of the outlet section of the evaporating pipe and cools the wall surface of the evaporating pipe, and thermal state ablation protection of the evaporating pipe is completed; each way of fuel is preheated independently, the preheating degree of the fuel is increased, and the evaporating and premixing effect of the fuel is enhanced. By the aid of the overall design, cooling protection of the evaporating pipe is realized, and the service life is prolonged; high-intensity preheating of the fuel is realized, and the evaporating and premixing degree is increased.

The present disclosure provides a staged combustion chamber head with a swirling pre-diaphragm plate structure, comprising: a pre-combustion stage, and a main combustion stage sheathed outside the pre-combustion stage; the main combustion stage includes an inner ring, and a sleeve sleeved outside the inner ring; the inner ring has a plurality of nozzle holes distributed in the circumferential direction; an annular air passage is formed between the inner ring and the sleeve; Axial swirl vanes and swirling pre-film plates are arranged in sequence from front to back; a plurality of axial swirling vanes are provided, and the plurality of axial swirling vanes are arranged in the circumferential direction; the swirling pre-film The plate is annular, and the swirling pre-film plate is formed by a plurality of segmented arcs arranged in the circumferential direction; the spray holes are arranged directly on the arc ridge of the swirling pre-film plate, and any two adjacent ones are arranged. There are two segmented arcs between the nozzle holes; the radial heights of the front and rear ends of the arc ridges are both greater than the radius of the outer surface of the inner ring and smaller than the radius of the inner surface of the sleeve.

The invention discloses a bush assembly capable of adjusting air flow of a combustion zone so as to solve the problem that lean-oil flameout of idling rating in a currently-occurring condition. The bush assembly comprises an bush out wall, a sealing sleeve, a floating body and a moving mechanism, wherein the bush outer wall is of a annular shape, and an installing hole is formed in an upstream endof the bush outer wall, the sealing sleeve is in a cylindrical shape and is coaxially fixed with the installing hole, and a floating channel is formed inside the sealing sleeve, the floating body isarranged on the inner side of the sealing sleeve in a coaxial mode, and can move up and down inside the floating channel, and the moving mechanism is connected with the floating body and controls thefloating body to move up and down. The bush assembly capable of adjusting air flow of combustion zone has the beneficial effects that the area of an air flow channel is changed by changing the heightof the bush outer wall, and therefore the air flow rate is changed, and the jet angle of an air inlet hole is finally influenced, the effect of adjusting the air flow of an annular region is achieved;the oil-gas ratio of the annular region can be adjusted by adjusting the air flow of the annular region, so that the phenomenon of lean-oil flameout of a combustor in the idling rating is prevented;and meanwhile, when the combustor works in a pre-mixing mode, the air amount of the annular region can be increased, so that the premixed effect of fuel and air is enhanced.

The invention discloses a low-volatile nano filler modified polypropylene material, a preparation method and application thereof. The low-volatile nano-filler modified polypropylene material contains the following components in mass percentage: 60-75% of polypropylene, 19.3-30% of nano-silicon carbide whisker masterbatch, 5-15% of ethylene-octene copolymer, 0.1-0.4% of antistatic agent, 0.1-0.6% of antioxidant and 0.1-0.5% of ethylene-acrylic acid copolymer wax. The present invention uses random copolymerized polypropylene as the resin base material, and improves the scratch resistance of the polypropylene material by adding self-made nano-silicon carbide whisker masterbatch, antistatic agent and ethylene-octene copolymer for modification. Reduced performance. The modified polypropylene prepared by the invention can be widely used in the fields of automobiles and home appliances.

A preparation method of a syrup without bonding agent precipitation, pre-baking the hydroxyl-terminated polybutadiene and diethanolamine melamine complex at 50°C±10°C for more than 12 hours to reduce the concentration of hydroxyl-terminated polybutadiene and diethanolamine Viscosity of the melamine complex; through a small amount of premixing multiple times, the hydroxyl-terminated polybutadiene is gradually blended with the viscous material, and the purpose of premixing it is gradually achieved; the hydroxyl-terminated polybutadiene and diethanolamine The melamine complex premixed slurry is poured into other raw material premix containers to participate in premixing, and fully stirred. The present invention utilizes the existing hardware facilities of the process, and improves the process through the analysis and exploration of the preparation of raw materials, the premixing process of the drug slurry, and the physical and chemical characteristics of the raw materials, so as to ensure the uniformity of the premixed drug slurry in the weighing process, and has the advantages of The operability is strong, and the uniformity of the pre-mixed slurry is basically the same, which ensures the quality of the slurry.

The invention discloses a vibrating pre-mixing type concentrate nozzle. The vibrating pre-mixing type concentrate nozzle comprises an oxygen supply pipe and a hollow annular dispersing air pipe which are superposed in pipe core and sleeve along the vertical direction successively, and cone-shaped technological air bellows which form an air chamber, wherein a feeding box which is opened downward in the top sleeves the outer wall of the dispersing air pipe and a horizontal fixed plate is fixedly connected to the top of the hollow annular dispersing air pipe, and air hammer vibrating devices which shake off nodules by driving the dispersing air pipe to move back and forth up and down is fixedly connected to the top, far from the dispersing air pipe, of the fixed plate; a feed inlet pre-mixing air opening with an upward air opening is formed on the lower side of the opening of the feeding box; a technological air rotating device which enables gas to pre-mix concentrate powder along the tangential direction is arranged at the inlet of the technological air bellow; and an independent pre-mixing air supply pipeline which is introduced to the bottom of the feeding box and a pre-mixing air beam device are further arranged in the dispersing air pipe, and an inner cyclone tube leading to a discharge opening is further arranged on the outer side of the feeding box. The invention discloses the vibrating pre-mixing type concentrate nozzle which can effectively reduce the nodulating phenomenon and improve the burning effect of a copper concentrate mineral aggregate.