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54results about How to "Promote mixing" patented technology

Low NOx fuel gas burner based on venturi tubes

The invention disclose a low NOx fuel gas burner based on venturi tubes, which comprises a burner body, primary burners, secondary burners, a thermal insulation tile and the venturi tubes, wherein a first passage and a second passage are arranged on the thermal insulation tile; the thermal insulation tile is connected with the burner body; the first passage is communicated with a cavity of the burner body; necking mouths are formed in the first passage; primary fuel injection nozzles and secondary fuel injection nozzles are respectively arranged at the top ends of the primary burners and the secondary burners; the venturi tubes and the primary burners are arranged in the first passage; the secondary burners are arranged in the second passage; the top end surfaces of the primary fuel injection nozzles and the top end surfaces of the venturi tubes are parallel, and are arranged in the first passage respectively. Through the adoption of the design of the hierarchic arrangement of the venturi tubes, the necking mouths and the burners, the problem that local high temperature produced in a conventional fuel gas burner due to the nonuniform mixing of the fuel gas and combustion air in a furnace chamber can be overcome, meanwhile the flame stability of the burner is improved, and the generating of NOx is reduced.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

A double-nozzle flat-plate micro-combustion chamber based on hydrocarbon fuel

The invention relates to the fields of micro-combustion and novel energy utilization, and relates to a double-nozzle flat type micro-combustion chamber based on hydrocarbon fuel. The double-nozzle flat type micro-combustion chamber comprises two same-structured cubic micro-combustion chambers. An outlet is arranged in the center of an upper surface of each micro-combustion chamber. A left inlet and a right inlet are arranged on the center of two opposite sidewalls of each micro-combustion chamber. The micro-combustion chambers are piled along a height direction with a clearance, and the outlets of the micro-combustion chambers are positioned face to face. The clearance between the two micro-combustion chambers forms a tail gas discharging cavity. An inlet incidence angle theta formed by a velocity direction of a fuel inlet and a central axis direction of the left inlet and the right inlet is 18 to 22 DEG. With the double-nozzle flat type micro-combustion chamber, spaces in micro-combustion chambers are fully utilized, large-flow high-efficiency combustion is realized in micro-scaled chambers, diffusivity of combustion is realized, combustion can be carried out with a relatively low flow, a limitation scope of micro-scaled combustion is improved, and combustion chamber apparatus can be further minimized.
Owner:JIANGSU UNIV

Multi-crankshaft concrete mixer

The invention discloses a multi-crankshaft concrete mixer. The multi-crankshaft concrete mixer comprises more than one mixing device connected in a mixing barrel in a rotating mode, and the mounting directions and the rotating directions of two adjacent mixing devices are opposite. Each mixing device comprises a side feeding assembly, a side returning assembly and a mixing crankshaft assembly, wherein the side feeding assembly and the side returning assembly are respectively provided with a mixing arm connected with a main mixing shaft and a returning mixing arm connected with the main mixing shaft, vanes are arranged integrally or in a split mode on the mixing arm. The mixing crankshaft assembly comprises more than one feeding crankshaft, at least, the feeding crankshaft comprises two outer feeding crankshafts which are respectively connected with the feeding mixing arm and the returning mixing arm, and the spiral direction of the two outer feeding crankshafts are the same, and the two outer feeding crankshafts are connected on the mixing arm and distributed systematically. The multi-crankshaft concrete mixer resolves the problem that vibration is large due to large decentration in the prior art, and is stable in operation, low in energy consumption, and high in efficient due to the multi-crankshaft arrangement.
Owner:润桐(苏州)技术服务有限公司

Waste gas and wastewater treatment device

The invention discloses a waste gas and wastewater treatment device which comprises a wastewater treatment box, a waste gas treatment box and an air compressor, wherein a first waste gas pipe is fixedon one side of the top end of the wastewater treatment box; the waste gas treatment box and the wastewater treatment box are connected through the first waste gas pipe; a first waste liquid pipe is arranged on one side of the bottom of the wastewater treatment box; an adsorption liquid pipe is arranged on one side of the wastewater treatment box; and an air pressure pipe is arranged on the top end of one side close to the adsorption liquid pipe of the wastewater treatment box. The air compressor is connected with the wastewater treatment box through an air compression pipe, the middle part ofthe top end of the wastewater treatment box is provided with an air inlet pipe, and the inner side of the wastewater treatment box is fixed with a baffle. The waste gas and wastewater treatment device pretreats waste gas, so that the treatment effect of the waste gas is better, the mixing of wastewater and an adsorption liquid can be accelerated, the treatment efficiency is improved, and the wastewater treatment efficiency is prevented from being influenced by the change of reaction temperature.
Owner:孙灯成

Juice extractor equipment for snow pear juice containing rock candy

The invention discloses juice extractor equipment for snow pear juice containing rock candy. The structure of the juice extractor equipment comprises a rock candy treatment embedded pipe, a handle, amotor device, a control handle, a reamer group and a pot body, wherein the handle is mounted on the right side of the pot body and is locked with the pot body; the rock candy treatment embedded pipe is arranged inside the pot body, and the pot body is connected with the rock candy treatment embedded pipe in a penetrating mode; the reamer group is arranged on the periphery of the bottom of the rockcandy treatment embedded pipe; the reamer group is in clearance fit with the rock candy treatment embedded pipe; and the reamer group is mounted above the motor device and is locked with the motor device. When the equipment is used, by the embedded treatment mechanism, the equipment can avoid the following problems: a cutter head is likely to block when the rock candy is directly put into the juice extractor to be mixed and stirred, the cutter head can be damaged when the blockage is serious, big noise can be generated, and time is wasted when the rock candy is ground and processed externallyfor the second time; and the equipment saves a secondary processing step of large rock candy, and the rock candy is ground by a specific embedded spline structure by the rotation of the juice extractor.
Owner:平邑县经发企业服务有限公司

Multi-stage premixed pipe for gas furnace head

The invention discloses a multi-stage premixed pipe for a gas furnace head. The multi-stage premixed pipe a pipe body, a first gas inlet, a second gas inlet and a mixed gas outlet, one end of the pipebody is provided with the first gas inlet and the second gas inlet correspondingly, the other end of the pipe body is provided with the mixed gas outlet, the pipe body is fixedly connected with a fixed plate, and two cavities are formed in the inner part of the pipe body through the fixed plate, the side wall of the fixed plate is provided with a communicating port which is in the horizontal direction, the two ends of the pipe body communicate through the communicating port, one end of the inner part of the pipe body is fixedly provided with a first conduit, and a second conduit is arranged on the outer part of the first conduit in the pipe body, the outer side of the first conduit is equidistantly provided with a first exhaust port, the outer side of the second conduit is equidistantly provided with a second exhaust port, and the other end of the pipe body is provided with a guide rod. The premixed pipe realizes multi-stage mixing of gas, the overall structure is simple, the design is reasonable, the mixing effect of gas is good, the utilization rate of gas is improved, and it is convenient to popularize and use.
Owner:广东炬鼎节能设备有限公司

Spiral pipe structure for separation column of high-speed counter-current chromatograph

The spiral pipe structure comprises the separation column, a spiral square pipe and two adjusting blocks, each adjusting block is of a circular ring structure, the separation column is sleeved with the hollow portion of each adjusting block, the end faces of the sides, close to each other, of the two adjusting blocks are inclined planes, and the two inclined planes are parallel to each other. Thespiral square pipe is spirally wound on the separation column and arranged between the two adjusting blocks, the two sides of the spiral square pipe abut against the two adjusting blocks respectively,a pipe inlet hole and a pipe outlet hole are formed in the first disc, and the two ends of the spiral square pipe extend out of the pipe inlet hole and the pipe outlet hole respectively; the end, extending out of the pipe inlet hole, of the spiral square pipe penetrates through the adjusting block close to one side of the first disc, the cross section of the spiral square pipe is of a rectangularstructure, the long edge of the rectangular structure is parallel to the axis of the separation column. By means of the device, the technical problems existing in the prior art can be solved: when atwo-phase interface in the circular tube is eccentric, radial mixing is insufficient, and the axial inclination of the spiral tube is difficult to control.
Owner:SICHUAN UNIV

Flue-gas swirl strong mixing split filter board

A flue gas swirl strong mixing diversion filter board is used in a power station pulverized coal fired boiler at a grizzly screen for spraying ammonia of a flue gas selective catalyctic reduction (SCR) denitration device; the swirl strong mixing diversion filter board (4) are arranged along the outer surface of a metallic conduit (2) of the grizzly screen for spraying ammonia and is divided into an upper board and a lower board, the lengths of which are equal to or slightly longer than that of a spray pipe; the swirl strong mixing diversion filter board (4) installed on the metallic conduit (2) of the grizzly screen for spraying ammonia is close to an ammonia gas jet orifice (3) and forms the angle of 40-60 degrees, and the upper board and the lower board of the swirl strong mixing diversion filter board (4) are symmetrical and connected and supported with each other by a filter board support (5). The ammonia gas is gradually mixed with the flue gas in the process of flowing along the filter board (4) and gradually flows into flue gas flow field at rear along a round hole to be diverted by the round hole. The mixture of the ammonia gas and the flue gas form a great deal of swirl under the action of an ostiole of the filter board and the sawtooth edge of the filter board, and is rapidly mixed in the flow.
Owner:SOUTHEAST UNIV

Precise high-pressure polyurethane foaming machine

The invention discloses a precise high-pressure polyurethane foaming machine. The foaming machine comprises a base, material bins and a mixing box; a first support is mounted at the top of the base; acontrol box is mounted at the top of the base; and the material bins are mounted at the top of the first support. According to the foaming machine, by the aid of a first pressure pump and a first pressure gauge which communicate with the mixing box as well as second pressure pumps and second pressure gauges which communicate with the two material bins, raw materials in the mixing box and the material bins can be stirred and pressurized respectively, the raw materials in the two material bins are stirred and pressurized preliminarily, are fluffy due to the internal gas, are conveyed into an inner barrel of the mixing box and are mixed for stirring and pressurizing again, the volumes of the two groups of fluffy raw materials are enlarged, the contact area of the raw materials is increased,mixing of the raw materials is promoted, meanwhile, the secondary pressure can be adjusted according to the state of the raw materials after preliminary pressurizing, by the aid of the foaming procedure of secondary pressurizing, the phenomenon of insufficient foaming can be avoided, the raw materials are ensured to be foamed completely, foam is fine and uniform, and the machine is suitable for wide popularization and use.
Owner:WENZHOU FEILONG POLYURETHANE ENG

Classified dosing device for sewage treatment

The invention discloses a classified dosing device for sewage treatment, belonging to the technical field of sewage treatment. According to the invention, a stirring mechanism is arranged in a sewagetank; two ends of a stirring shaft in the stirring mechanism are respectively screwed with the left and right side walls of the sewage tank through sealing bearings; a conveying pipe is inserted intoone end of the stirring shaft and is screwed with the stirring shaft through a sealing bearing; the other end of the conveying pipe penetrates through one side wall of the sewage tank and then is inserted and fixed to the outer ring wall of a connecting pipe; a plurality of first hoses are inserted into the other side of the outer ring wall of the connecting pipe at an equal interval; the other ends of the first hoses are connected with a plurality of water suction pumps in a medicine distribution mechanism; and the medicine distribution mechanism is arranged on one side of the sewage tank. Different medicines are respectively separated through separation plates, and a second hose on the upper side of each separation plate is connected with one water suction pump, so the different medicines can be pumped into the sewage tank for mixing through the water suction pumps at different time periods; and thus, the phenomenon of excessive addition of medicines cannot occur. The classified dosing device of the invention has the advantages of reasonable arrangement, low production cost and the like.
Owner:湖南洞庭环保科技有限公司

Environment-friendly laboratory wastewater treatment device

The invention relates to the technical field of wastewater treatment, and discloses an environment-friendly laboratory wastewater treatment device. The device comprises a first motor, a pH detector, asecond motor, a controller and a settling tank, wherein a neutralization reaction tank is arranged on the left side of the upper end of the settling tank; a deodorization device is arranged on the right side of the upper end of the settling tank; a plurality of ultraviolet lamp tubes are arranged at the inner upper end of the settling tank; the left side of the settling tank is rotationally connected with a first stirring rod; the left end of the first stirring rod is fixedly connected with the output end of the first motor; a right side pipeline of the settling tank is connected with a firstwater conveying pipe; an upper side pipeline of the first water conveying pipe is connected with the deodorization device; a first pump machine is arranged on the first water conveying pipe; an upperside pipeline of the settling tank is connected with a second water conveying pipe; and the other end of the second water conveying pipe is connected with the neutralization reaction box. The laboratory wastewater treatment device is simple in structure, capable of conducting multiple distribution treatment on laboratory wastewater and efficiently removing harmful substances in the laboratory wastewater, low in manufacturing cost and capable of effectively protecting environmental sanitation, and has usage value in the field of wastewater treatment.
Owner:ZIBO CREATION OF MECHANICAL & ELECTRICAL TECH CO LTD
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