37results about How to "Increase speed difference" patented technology

The invention discloses a high-low-speed shear emulsifying mixer. The high-low-speed shear emulsifying mixer comprises a tank body and a cover body, wherein a discharge opening is formed in the bottomcentral position of the tank body; a first feed opening and a second feed opening are formed in the upper part of the side face of the tank body; a big gear ring is fixed on the inner wall of the cover body and is meshed with a second planet gear inside the big gear ring; a driven shaft is arranged on the second planet gear; the second planet gear is meshed with a small gear ring at the central position of the big gear ring; the small gear ring is meshed with a first planet gear inside the small gear ring; the first planet gear is meshed with a sun gear at the central position of the small gear ring; a driving shaft is arranged on the sun gear; a scraper is arranged at the bottom of the driving shaft. By gear train transmission, the driven shaft rotates and revolves around the driving shaft, so that uniformity and sufficiency in mixing are realized; by transmission of two gear trains, opposite rotating directions of the driving shaft and the driven shaft are realized; meanwhile, the speed difference between the driving shaft and the driven shaft is increased, and uniformity and sufficiency in emulsifying are realized; the scraper arranged at the bottom of the driving shaft can effectively prevent the settlement of materials.

The invention discloses a novel atomizing feed nozzle for catalytic cracking. The nozzle comprises a spray head, a venturi, an outer tube, an inner tube, a raw material oil inlet, a steam inlet and a steam hole plate. Steam atomizes raw material oil in a mixed atomization chamber for the first time, steam carrying raw material oil enters the venturi and passes through a contraction section, the circulation area is contracted, then steam carrying raw material oil passes through a throat section and is sprayed out of an expansion section, and therefore steam atomizes raw material oil for the second time; steam carrying out raw material oil enters a nozzle outlet of the spray head for atomization for the third time. The nozzle outlet of the spray head has multiple arrangement forms, a wide screen is formed when steam carrying raw material oil is sprayed out, sufficient contact and reaction of raw material oil and a catalyst are promoted, and meanwhile catalyst cracking is effectively lowered.

A limited slip differential includes a driving plate, backing plates, differential gear assemblies, and a transmission assembly engaged together inside a sealed casing where fluid is pumped. The driving plate has pairs of communicated openings for interlocking two gears of each gear assembly, which extend by opposite directions from the driving plate for separately engaging with the transmission assembly. While synchronously rotating the plates, the gear assemblies are alternatively soaked into the fluid and each permits the fluid passing among the gears for adjusting the rotational speed. In the event that the rotational speed difference of axle shafts of the vehicle exceeds a threshold value, the LSD applies at least one gear assembly to generate a back pressure and efficiently block the fluid passing through the gears for limiting mutual rotational speed difference, hence achieving a limited-slip effect.

The invention provides a bidirectional processing cutter set and a wall breaking device and belongs to the field of food processing. The bidirectional processing cutter set comprises a cutter head, acutter cylinder, a transmission device and a driving device, wherein the output end of the driving device is connected with the input end of the transmission device, the transmission device comprisesa first output end and a second output end, the first output end and the second output end are coaxially arranged, the rotation direction of the first output end is opposite to the rotation directionof the second output end, the cutter head is arranged at the first output end, the cutter cylinder is arranged at the second output end, and the cutter head is arranged in the cutter cylinder. The directional processing cutter set disclosed by the invention can increase speed difference and contact chance between food materials and the cutter, so that a processing efficiency is effectively improved; the bidirectional processing cutter set has good stirring and foam breaking effects, makes the food materials evener and avoids bottom sticking; the bidirectional processing cutter set further canmaintain stable motor load and has a motor protection effect.

The invention relates to a modified structure of a peanut grader in an agriculture machine, and discloses a beating sieve cleaning mechanism of a peanut rotary drum grader. The beating sieve cleaning mechanism of the peanut rotary drum grader comprises grading rotary drums (1) of the peanut rotary drum grader; beating shafts (2b) parallel to axes of the grading rotary drums (1) are arranged on outer sides of the grading rotary drums (1), and a plurality of beating rollers (2) are configured on each beating shaft (2b) along the length direction of the axis of the corresponding grading rotary drum (1); a plurality of rectangular beating plates (2a) are fixed to the outer peripheral wall of each beating shaft (2b) in a cantilever manner, and are flexible elastic plates, one end of each beating plate (2a) is fixed to the outer wall of the corresponding beating shaft (2b), and an included angle is formed by each beating plate (2a) and a radial line fixed onto the outer wall of the corresponding beating shaft (2b), and ranges from positive or minus 90 degrees to positive or minus 150 degrees; 1/2-1/3 parts of the beating plates (2a) of the beating rollers (2) in length directions of the beating plates (2a) are in contact with surfaces of the grading rotary drums (1) during rotation; and rotational directions of the beating rollers are opposite to those of the grading rotary drums, and linear velocities of contact positions among the beating plates on the beating rollers and the surfaces of the grading rotary drums are different. The beating sieve cleaning mechanism solves the problem of blockage of sieves of existing grading rotary drums in a peanut pod grading procedure.

The present invention belongs to the technical field of petrochemical industry, and relates to a lifting pipe reactor material feeding mixing section structure for promoting efficient mixing of raw oil and a catalyst in a catalytic cracking process. According to the present invention, a raw oil atomization spraying nozzle adopts an obliquely downward material feeding installation manner along to the axial direction of the lifting pipe so as to achieve oil-catalyst countercurrent contact in the catalytic cracking lifting pipe material feeding mixing section; the raw oil atomization spraying nozzle installation bushing (1) is obliquely and downward arranged on the lifting pipe reactor pipe wall (2) along the axial direction, and the raw oil atomization spraying nozzle is arranged in the raw oil atomization spraying nozzle installation bushing (1); in the used material feeding mixing section structure of the present invention, the raw oil droplets sprayed by the raw oil atomization spraying nozzle and the catalyst particles are subjected to countercurrent contact, such that the state between the raw material jet and the catalyst presents the cross-countercurrent mixing flow so as to improve the oil-catalyst contact and mixing situation in the catalytic cracking lifting pipe material feeding mixing section; and the complete mixing flow is subjected to transition to achieve the plug flow after the raw oil and the catalyst are rapidly mixed so as to reduce the space required by the mixing process, shorten the time required by the mixing process, and improve the reaction efficiency.

The invention discloses an enrichment device for aerosol particles. The enrichment device comprises an enrichment nozzle and an external force field generating device, the external force field generating device is used for forming external force field distribution in the enrichment nozzle, and the external force field distribution direction is parallel to the axis direction of the enrichment nozzle; the aerosol particles are acted by an external force field in the distribution of the external force field, and the acting direction of the external force field on the aerosol particles points to the inlet end of the enrichment nozzle from the outlet end of the enrichment nozzle; external force field distribution is formed in the enrichment nozzle through the external force field generating device, the stress time of aerosol particles in the enrichment nozzle can be remarkably prolonged, the Savman lift force effect borne by the aerosol particles is enhanced, the aerosol particles efficiently move to the central axis of the enrichment nozzle, and the efficient and high-precision enrichment of aerosol particles in a shorter channel length is realized; and the enrichment device has huge application potential in the fields of additive manufacturing 3D printing, ink-jet printing, biomedicine, environment detection and the like.

The invention belongs to the technical field of new materials, and particularly relates to a double-millstone type circulating grinding machine for new material production. The double-millstone type circulating grinding machine comprises a grinding component, a feeding component, a conveying component and a separating component. A first motor drives a first gear and a third gear to rotate, a first gear ring and a second gear ring are driven to rotate in the opposite directions, an upper millstone and a lower millstone are driven to rotate in the opposite directions, and then raw materials are ground. The conveying component conveys the ground powder into the separating component, conveys qualified powder out of a grinding machine, and conveys unqualified powder into the grinding component to be ground again. The upper millstone and the lower millstone rotate in the opposite directions to increase the speed difference between the upper surface and the lower surface of the materials, so that the raw materials are fully ground, and the quality of new materials is improved. As the unqualified powder is conveyed into the grinding component to be ground again, the unqualified powder is prevented from being conveyed out of the grinding machine, therefore the qualified rate of the new materials is increased, and the quality of the new materials is further improved.

The invention relates to a method of producing a structured fibrous web of paper suitable for tissue products. The method comprises forming a fibrous web and conveying the formed fibrous web on a water receiving felt (5) to a dewatering nip. An endless steel belt (11) with a smooth steel surface is passed through the nip together with the fibrous web and the water receiving felt (5) wherein the endless steel belt is heated by heaters (HE_U, HE_L). After the dewatering nip, the fibrous web is conveyed by the endless steel belt (11) to an endless textured fabric (12) which is permeable to air and to which the web is transferred from the endless steel belt (11) in a transfer nip. The textured fabric (12) runs at a lower speed than the endless belt (11). After the transfer to the textured fabric (12), the fibrous web is carried by the textured fabric (12) to a drying cylinder (17). The transfer nip is formed by two rolls of which one is a suction roll within the loop of the textured fabric. The transfer nip has a length which is 5 mm-40 mm. The endless steel belt (11) has a width that exceeds the width of the textured fabric (12). The invention also relates to a corresponding machine.

A centrifuge turbo machinery includes an impeller which rotates about an axis to pressure-feed fluid flowing along the axis to an outer side in a radial direction, and a casing which accommodates the impeller and has a facing surface facing the impeller in an axial direction. A convex portion relatively close to the impeller and extending in the radial direction and a concave portion relatively spaced apart from the impeller and extending in the radial direction are alternately and continuously formed on the facing surface in a circumferential direction.