32results about How to "Solve the problem of uneven cooling" patented technology

The invention discloses an afterheat recovery system and an afterheat recovery method of dry granulating liquid slag. The system comprises a granulating cabin, a moving bed and an afterheat recovery system, the inner surface of the granulating cabin is provided with a granulating cabin water cooling wall, the center of the top of the granulating cabin is provided with a slag pipe, the slag pipe extends into the granulating cabin, the lower part of the tail end of the slag pipe is provided with a centrifugal granulator, the centrifugal granulator is connected with a motor arranged at the lower part of the centrifugal granulator, the lateral side of the centrifugal granulator is provided with an air supply pipeline, an annular air opening is formed between the centrifugal granulator and the air supply pipeline, the lower part of the granulating cabin is provided with the moving bed, the inner surface of the moving bed is provided with a moving bed water cooling wall, the top of the moving bed is provided with an air outlet, the bottom of the moving bed is provided with a slag discharge device, an air inlet device is arranged above the slag discharge device, the afterheat recovery system comprises a primary dust remover, an afterheat boiler, a secondary dust remover, an exhaust fan and a chimney which are connected in sequence, and the primary dust remover is connected with the air outlet arranged at the top of the moving bed. The system and the method effectively solve the problems of heat recovery and furnace slag granulation of equipment such as a blast furnace.

The invention relates to a hot rolling spray cooling method for a large cylinder, which is characterized in that an upper spray device and a lower spray device are manufactured; after a large cylinder is rolled, the cylinder is clamped by an upper roller and a lower roller, so that the cylinder is rotated by the driving of frictional force; additionally, the lower spray device extends into the cylinder, and the upper spray device is arranged outside the cylinder; the length of cooling water pipes on the upper spray device and the lower spray device is regulated, so that a connecting line of all of the cooling water pipes on each spray device near the wall end of the cylinder forms a semicircle shape which is concentric with the cylinder; and additionally, the quantity ratio of the cooling water pipes on an upper spray collecting plate and a lower spray collecting plate of the upper spray device and the lower spray device and the flow ratio of cooling water are regulated, so as to cool the inner and outer surfaces of the large cylinder at the same cooling speed after rolling. The hot rolling spray cooling method has the advantages that the problem of uneven cooling of the traditional cylinder heat treatment is solved, the cooling efficiency is increased, the coefficient of heat transfer of the surface of the cylinder is increased on the initial stage of cooling, and the surface quality of the cylinder is greatly increased.

The invention discloses a quenching device. A quenching water tank 2 comprises a bottom water spraying pipeline, a side water spraying pipeline and a water return pipeline, wherein the bottom water spraying pipeline is arranged on one side of the bottom of the quenching water tank 2; the side water spraying pipeline is arranged on the inner side wall, far away from the bottom water spraying pipeline, of the quenching water tank 2; a plurality of nozzles are arranged on the bottom water spraying pipeline and the side water spraying pipeline; and a heat exchanger is arranged on the water return pipeline. Through the plurality of nozzles on the bottom water spraying pipeline and the side water spraying pipeline are correspondingly sprayed to the bottom and the side surface of a quenching part, and the quenching part can be cooled uniformly due to the fact that the water temperature of the bottom of the quenching part is consistent with the water temperature of the side surface of the quenching part.

The invention relates to the field of food processing, and discloses a food cold storage system. The food cold storage system is mainly composed of a cold storage chamber, a first conveying belt, a second conveying belt, cold storage boxes and a wedge-shaped block. A groove is formed in the bottom of a storage cavity. The wedge-shaped block is in sliding connection in the groove and is located between the first conveying belt and the second conveying belt. A pushing mechanism is arranged in a circulation cavity. The multiple cold storage boxes are placed on the first conveying belt, multiple cold storage grooves are formed in the upper portions of the cold storage boxes, and a cooling cavity is arranged on the lower portion of each cold storage box, one sides of the cooling cavities communicate with multiple communicating pipes, and a sub-body of a quick joint is mounted on each communicating pipe. Multiple main bodies of the quick joints are arranged on the other sides of the coolingcavities. A wedge-shaped bottom with dual wedge faces is arranged at the bottom of each cold storage box, and the wedge-shaped bottoms cooperate with the wedge-shaped block. By means of the scheme, all portions of foods can be cooled, the food cooling effect is enhanced, and then the fold cold storage quality is enhanced.

The invention discloses an oil cooling stator structure which is characterized by comprising a motor shell, a rear end cover and a stator; the stator comprises a stator end coil and a stator iron core; circumferential oil grooves are formed in the rear end cover and the end of the motor shell; and cooling oil enters the oil grooves from the rear end cover of an electric driver and is led into the upper portion of the electric driver along the oil grooves; an axial stator oil distribution channel is arranged close to the upper portion of the outer circumference of the motor shell; the stator oil distribution channel is communicated with the oil grooves; oil spraying holes corresponding to cooling parts are formed in the stator oil distribution channel, and the cooling oil falls down from the oil spraying holes to directionally cool the stator end coil and the stator iron core. The oil liquid of the rear end cover of the electric driver is introduced into the stator oil distribution channel above the electric driver; and the oil spraying holes corresponding to the cooling parts are used for realizing directional cooling of the stator end coil and the stator iron core, so that the problem of non-uniform cooling of the stator is solved.

The invention designs a crystallizer copper pipe with a uniform cooling function. A layer of 5920-SN sealant with a set thickness is bonded in a set size range of the outer surface of a corner part ofthe crystallizer copper pipe to serve as a high-temperature-resistant thermal insulation coating, and the portion, bonded with the high-temperature-resistant thermal insulating coating, of the cornerpart of the copper pipe is subjected to pre-texturing treatment through sand blasting or laser; the thickness of the high-temperature-resistant thermal insulating coating is set to be 0.04 mm to 0.2mm, the width of the high-temperature-resistant thermal insulating coating bonded to the corner part of the crystallizer copper pipe is not larger than the arc length of a transition arc of the outersurface of the corner part, and the width is not smaller than 1/4 of the arc length of the transition arc, and the heat conductivity coefficient of the thermal insulation coating ranges from 0.02 to 0.1 w/k.m, and when the thermal insulation coating ranges from 260 DEG C to 300 DEG C, the time of working with fundamental strength higher than 1.5 MPa is longer than 500 hours. The crystallizer copper pipe solves the problem of uneven cooling of the crystallizer copper pipe, the phenomenon of supercooling of the corner part of a casting blank is improved, and particularly, it is guaranteed that the thermal insulation coating can be firmly adhered to the corner part of the crystallizer copper pipe, so that the use effect is not influenced, the implementation is easy, the reliability is high, and the crystallizer copper pipe is beneficial to popularization and use.

The invention discloses a single fuel cell, a fuel cell stack and a working mode. The invention belongs to the technical field of new energy automobile fuel cells. The single fuel cell is characterized by comprising a second plate, a membrane electrode group and a first plate, the membrane electrode group is arranged between the second plate and the first plate; the upper side of the first plate is provided with a semi-water-drop-shaped protrusion protruding upwards and a semi-water-drop-shaped recess recessed downwards. The lower side of the first plate is provided with a semi-water-drop-shaped protrusion protruding downwards and a semi-water-drop-shaped recess recessed upwards. By adopting the single fuel cell, the fuel cell stack and the working mode, the stability of the fuel cell canbe effectively improved.

The present invention discloses a cooling device for a box-type substation. The device comprises a box body, the top portion of the box body is fixedly connected with a cabinet, the top portion of theinner wall of the cabinet is fixedly connected with a positive and negative motor, the output end of the positive and negative motor is fixedly connected with a gear, the back side of the gear is engaged with a toothed plate, the bottom portion of the toothed plate is fixedly connected with a fixed rod, the bottom portion of the fixed rod is fixedly connected with a sliding sleeve, and the innercavity of the sliding sleeve is sleeved with a sliding rod. Through cooperative usage of a cooling port, an air inlet, a cabinet, the positive and negative cabinet, the gear, the toothed plate, the fixed rod, a pull rod, the sliding sleeve, a spring, the sliding rod, a support plate, a motor, a connection block and a fan blade, the problem is solved that a current cooling device for a box-type substation is not uniform in cooling when the cooling device is used, the cooling device for a box-type substation is good in cooling effect, and can perform uniform cooling of elements in the box-type substation so as to facilitate usage of users and improve the practicability of the cooling device for the box-type substation.

The invention relates to a maintenance method of a controlled cooling after rolling flow regulating valve. The maintenance method is characterized in that two programs and three valve flexibly testingmethods are set to judge that the valve has the problem of unstable flow regulation, and a breakdown maintenance method is adopted to thoroughly solve the problem of control flow fluctuation of the flow regulating valve. By applying the method, the problem of uneven cooling of a steel plate due to the fact that the water amount regulation precision fluctuation is large when the steel plate passesthrough a cold control region, the stable operation of a controlled cooling after rolling system is ensured, the operation reliability of the flow regulating valve is improved, the method is convenient and effective, the high-precision use of the flow regulating valve is recovered in a short time in a relatively low cost, the plate type control capability of the steel plate production is improved, and the practicability is high.

The invention discloses a method for setting flow of a rolling cooling system, wherein the method comprises the following steps: 1) determining direct proportional function of medium flow and collector opening degree needed by the process of each cooling collector, medium flow=k*collector opening degree +b, wherein k and B are constants capable of being determined according to the medium flow needed by the process and the property of performing mechanism; 2) calculating the collector opening degree by the function determined in the step 1) according to a predetermined flow value, and transmitting the control parameter needed by the collector opening degree to an executing mechanism to execute; and 3) carrying out fuzzy adjustment for the medium flow by flow PID (process identification) in order to keep the actual medium flow at the predetermined flow, and carrying out fuzzy adjustment to the pressure of a shunt collector by pressure PID during the whole process. The method of the invention improves the hit rate and property evenness of the band steel by the high precision control of the medium flow of the collector of the cooling zone, solves the problem that the head of the band steel is cooled unevenly during the cooling process, achieves the precision control of temperature of the head and whole roll in a rolling direction, and effectively improves the yield of the band steel.

The invention belongs to the field of baijiu production and processing, and particularly discloses a processing device for producing soy sauce flavor type baijiu. The processing device comprises a rack, the rack is provided with a cooling mechanism, the cooling mechanism comprises an inner gear ring and a driving gear, the inner gear ring is fixedly sleeved with a cooling disc, two middle gears are meshed with the part between the driving gear and the inner gear ring, supporting columns are fixedly connected into gear holes of both middle gears and are both fixedly sleeved with transverse turntables, first through holes are formed in both transverse turntables in the circumferential direction, vertical turntables are arranged at the outer sides of both transverse turntables and are provided with second through holes, L-shaped connecting parts are connected between both the first through holes and the second through holes, piston cavities are fixed to the vertical turntables, pistons are slidably connected into the piston cavities, transverse supporting rods are fixed to rotation centers of both vertical turntables, and leveling rollers and turning rollers fixedly sleeve the transverse supporting rods respectively. The processing device for producing the soy sauce flavor type baijiu can solve the problem that currently, after distilled grain is cooled, the temperature differenceon the surface and the bottom of the distilled grain is large.

The invention discloses a method for improving the quenching uniformity of an inner-spraying and outer-sprinkling quenching system and relates to the technical field of thermal treatment of seamless tubes. The main point of the method lies in that a water replenishing device is designed in the quenching system, part of cooling water which is hindered by a compacting device is replenished, different water replenishing processes are adopted according to the property requirements of steel tubes with different specifications and different steel grades, thus the uniformity of the quenching effect is improved, the problem that the overall-length property of the steel tubes is non-uniform is solved, the qualified rate of the steel tubes is improved, and the characteristics that the system is simple, operation is convenient and fast, and the effects are good are achieved.