50results about How to "Avoid quality impact" patented technology

The present invention relates to the field of tire processing technology, in particular to an environmentally friendly processing device for recycling and utilizing waste tire rubber, comprising a crushing box, a first material guide block is provided at the lower left end of the crushing box, a first belt conveyor is provided on the first material guide block, a crushing assembly is provided inside the crushing box, a screening box is provided at the left end of the first belt conveyor, a disc screen assembly is provided inside the screening box, two support blocks are fixedly provided on the outer wall of the screening box in a symmetrical structure, a reflux block is installed at the lower end of the screening box, the reflux block is in an inclined structure, the lower right end of the reflux block is connected to the upper end of the crushing box, a second material guide block is provided at the lower end of the screening box, and a steel wire processing box is provided at one end of the second material guide block. It is convenient to crush and separate steel wire and rubber in waste tires, ensure the efficient separation of steel wire and rubber, improve the processing efficiency and crushing effect of waste rubber tires, improve the quality of recycled rubber, and provide strong technical support for the recycling and utilization of waste tires.

The invention relates to the technical field of lamp shell machining, and provides a lamp shell machining device for an LED rear combination lamp, which comprises a working table plate, a conveying assembly, a drilling assembly and a cleaning assembly, and is characterized in that the conveying assembly comprises a turntable rotationally mounted at the top of the working table plate; the top of the rotary disc is fixedly connected with four conveying boxes which are evenly distributed in an annular array mode, the top of the working table plate is fixedly connected with two longitudinal sliding rails which are symmetrically arranged, and the tops of the sliding parts of the two longitudinal sliding rails are jointly and fixedly connected with a fixing base. Through precise guiding of an electric sliding rail and the design of a groove in the bottom of a top plate, precise alignment and centering of a lamp shell are achieved, the accuracy and consistency of drilling are ensured, and the sealing performance and high efficiency in the cleaning process are also ensured through the quick-release structural design of a cleaning water pipe and a sealing opening.

The invention relates to the technical field of product liquid removal and drying, in particular to a carbon fiber precursor pre-oxidation heat release cooling device which comprises a cooling part, fiber silk threads, a drying liquid collection module, a detection module and a main body for bearing the fiber silk threads, the drying liquid collection module and the detection module. The front end of a front side driving shaft of the driving part is fixedly connected with a group of two branching rollers which are symmetrically arranged up and down, the left side and the right side of the front end face of the box shell are provided with head and tail guide roller groups with different height positions, the front end face of the box shell is rotatably connected with a group of three guide rollers, and the left side of the box shell is provided with a controller; according to the heat release cooling device, through the arrangement of the draught fan, the middle through part, the drying and liquid collecting module and other structures, after the heat release cooling device conducts water cooling on the carbon fiber precursors, the carbon fiber precursors can be dried, and cooling water can be recycled at the same time.

The invention discloses a high-pressure water injection well head device, and relates to the technical field of oil field drilling and production water injection, the high-pressure water injection well head device comprises a first shell, the lower end of the first shell is fixedly connected with a water outlet pipe, the upper end of the first shell is fixedly connected with a second shell, and a third shell is arranged above the second shell; the upper end of the third shell is fixedly connected with a water inlet pipe, the lower end of the second shell is connected with a backflow prevention mechanism, an annular groove is formed in the upper end of the second shell, a filtering mechanism is arranged in the annular groove, and four mounting grooves are formed in the inner wall of the third shell. The four mounting grooves are formed in the circumferential direction of the inner wall of the third shell at equal intervals. Impurities in water can be effectively filtered, it is guaranteed that the water is cleaner, the influence on the quality of an oil field is avoided, and the problem that a high-pressure water injection wellhead is prone to being damaged due to backflow of water in the oil field is effectively solved.

The utility model provides a kind of brewing fermentation heating tank, including fermentation tank body, the outside of fermentation tank body is equipped with heat preservation outer tank, the lower half of fermentation tank body and bottom are placed in a heating device, the heating device includes hot medium container of barrel, the bottom one side in hot medium container is equipped with heater, the heater is equipped with several heating pipes, the heating pipe is placed between the bottom of fermentation tank body and the bottom of hot medium container, one side of hot medium container is connected with import upwards into hot medium pipe, hot medium container is connected pressure gauge by a long tube, long tube is also equipped with pressure relief valve, the bottom of hot medium container is equipped with drain pipe.The utility model places brewing fermentation heating tank in hot medium container, and the brewing raw materials of fermentation in brewing fermentation heating tank are heated, so that heated more evenly, heat conduction efficiency is high, and can avoid local overheating to cause impact on product quality.

The invention relates to the technical field of light-curing printing, and discloses a light-curing printing device for automobile part production, which comprises a working base station, the top end of the working base station is fixedly connected with a control center, the side surface of the control center is movably connected with a light-curing printing head, and the bottom end of the light-curing printing head is fixedly connected with a light-curing printing plate. A resin tank is placed in the middle of the top end of the working base, a resin supplementing mechanism is fixedly connected to the side face, close to the control center, of the top end of the working base, and an air exhaust mechanism is connected to the side face, away from the control center, of the top end of the working base. The automobile parts are produced in a light curing printing mode, the manufacturing process can be simplified, complex mold manufacturing is not needed, the manufacturing period is shortened, the production cost is reduced, the yield and the quality are improved, liquid resin is automatically supplemented during light curing printing, and the production efficiency is improved. The influence on the quality of the automobile parts due to insufficient resin is avoided, and the quality of the automobile parts is ensured.

The utility model discloses a kind of nutrition meal bag raw materials moisture-proof storage devices, it is mainly related to the moisture-proof storage field of powdery raw materials. Including storage box, the inside of storage box is equipped with transition chamber and storage chamber, transition chamber and storage chamber are equipped with material leakage hole, material leakage hole is rotatably connected with baffle, multiple torsional springs are equipped between baffle and the lateral wall of material leakage hole, multiple stoppers for cooperating with baffle are equipped at material leakage hole, the side of storage box is equipped with dehumidification box, dehumidification box is movably connected with dehumidification box inside, the both sides of dehumidification box are equipped with the ventilation pipe being communicated with transition chamber, the end of ventilation pipe in one side is equipped with dehumidification fan. The utility model has the beneficial effect that it can solve the technical problem that existing storage device is easy to bring in moisture when replenishing material and affect the overall drying degree of powdery raw materials, reduce the influence of moisture brought in when feeding on the original drying degree of powdery raw materials, avoid powdery raw materials to be damp and affect the quality of subsequent nutrition meal bag.

The invention relates to the technical field of electrode foil processing, in particular to a foil connecting device and method based on high-specific-volume electrode foil processing.The foil connecting device comprises a support, an electrode foil and a polypropylene film, the top of the support is fixedly connected with a top frame, and the two ends of the top frame are rotationally connected with conveying rollers used for guiding the electrode foil correspondingly; one side of the support is rotationally connected with a winding handle used for winding an electrode foil and a polypropylene film, the winding handle is oval, the top of the top frame is fixedly connected with a mounting frame, a fastening roller used for supporting the electrode foil is arranged at the top of the mounting frame, and movable rods are arranged at the two ends of the mounting frame correspondingly; and the outer surface of the movable rod is provided with a deviation rectifying ring for rectifying the electrode foil, and the two ends of the mounting frame are provided with deviation rectifying assemblies for driving the movable rod to swing correspondingly. And due to the design of the deviation rectifying assembly, the position of the electrode foil can be rectified in real time, the movable rod pushes the electrode foil back to the correct position in a dynamic abutting mode under the guide of the deviation rectifying ring, and it is ensured that the electrode foil is always kept at the correct position in the machining process.

This utility model discloses a continuous low-temperature drying device suitable for rice processing, including a box body. A temperature sensor is installed on the inner wall of one side of the box body. A guide assembly is installed inside the box body, and a box body is installed inside the box body through the guide assembly. The box body is through-shaped, and a connecting seat is fixedly installed on one side of the box body. A linkage rod is movably sleeved in the connecting seat. A disc is installed on one side of the box body. The disc is driven to rotate by a motor. The fixed column on the disc cooperates with the linkage rod to make the box body reciprocate within the box body. This allows the rice piled at the bottom of the box body to move fully, and the hot air can penetrate better, ensuring that the rice in the upper and lower layers is dried evenly. At the same time, the guide rod and slider in the guide assembly ensure the stability of the box body movement, further improving the drying effect. In addition, the temperature sensor monitors the temperature in real time to ensure that the rice is always in a low-temperature drying state, avoiding the impact of high temperature on the quality of the rice.

The embodiment of the invention provides a blood pressure prediction method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of computers. The method comprises the following steps: acquiring first physiological information and second physiological information of a target object in a preset time window; the first physiological information is information collected by a pulse pressure sensor, and the second physiological information is information collected by a photoelectric volume pulse wave map sensor; based on the plurality of evaluation indexes, selecting physiological information meeting a preset evaluation standard from the first physiological information and the second physiological information as target physiological information; inputting the target physiological information into a prediction model to obtain a prediction result output by the prediction model; the prediction result comprises systolic pressure and diastolic pressure of the target object; the prediction model is trained according to a training sample and a corresponding training label, and the training label is systolic pressure and diastolic pressure corresponding to the training sample; according to the embodiment of the invention, the problem of low blood pressure prediction accuracy under different prediction conditions is solved.

The utility model relates to the technical field of building production, and discloses a screening machine capable of uniformly blanking, which comprises a fixed frame, a screening hopper is rotatably connected in the fixed frame, a shunting frame is fixedly mounted at the top of the screening hopper, a motor is fixedly mounted on the front surface of the fixed frame, a rotating shaft is fixedly mounted at the output end of the motor, and a discharging port is fixedly mounted at the bottom of the rotating shaft. According to the screening machine capable of achieving uniform discharging, when silt is wet and difficult to screen, a motor is started to drive the rotating shaft to rotate, a rotating disc is made to rotate, meanwhile, a push rod is driven to push a cylinder, the cylinder is driven to rotate, and therefore the silt can be evenly discharged. And a sliding block is driven to move in a sliding groove, in this way, an L-shaped rod can drive a U-shaped rod to move, the bottom of the U-shaped rod can scatter wet silt, screening is better facilitated, and the situation that screening is uneven, and the quality of products is affected to a certain degree is prevented.

The utility model relates to the technical field of spherical digesters, in particular to an outer half tube type heating digesting ball, which comprises a digesting ball and a half tube wound on the outer wall of the digesting ball, a feeding port and a drain outlet are respectively arranged at two ends of the digesting ball along the vertical center line direction, hollow shafts are respectively and symmetrically arranged at two ends of the digesting ball along the horizontal center line direction, and the half tube is arranged on the outer wall of the digesting ball. The two hollow shafts are movably installed on the two bearings respectively, and the bearings are fixed to the supporting base. A discharge pipe and an exhaust pipe which are communicated with the inner cavity are arranged at one end of the cooking ball along the horizontal center line; the other end, along the horizontal center line, of the cooking ball is connected with a steam pipe, one end of the steam pipe is connected with an external steam source, and the other end of the steam pipe sequentially penetrates through the bearing and the hollow shaft to be communicated with the half pipe. According to the utility model, the semi-pipe is arranged outside the cooking ball, and steam is introduced into the external semi-pipe to heat the cooking ball, so that the influence on the product quality is avoided.

The invention relates to a plate continuous cleaning device and method with an adjustable spraying and drying unit, and belongs to the technical field of precise cleaning and drying, and the plate continuous cleaning device and method comprises the steps that S1, a main body frame, a supporting conveying piece, a Bernoulli self-suspension cleaning assembly and a sound wave desorption drying assembly are deployed; s2, a conveying channel is widened, horizontal displacement and rotation of a spray head are limited through a vertical guide mechanism, and only the vertical freedom degree is reserved; s3, introducing liquid to establish a Bernoulli negative pressure suspension gap, driving the piezoelectric array to generate an ultrasonic cavitation field, and locking a resonance point based on impedance feedback; and S4, high-strength air ultrasound is utilized to enable a water film interface to oscillate and dewet, and then water drops are stripped through high-speed laminar flow of a Coanda air knife. According to the scheme, passive follow-up of the spray head to fluctuation of the surface appearance of the plate is achieved, and the problem of uneven cleaning or collision risk caused by warping of the plate is effectively solved.

The invention discloses a building construction underground support anchoring structure which comprises a storage pipe, the inner wall of the storage pipe is in threaded connection with six filter pipes, the outer surface of each filter pipe is in threaded connection with two fastening rings, and the side faces, close to each other, of each set of fastening rings make contact with the outer surface of the storage pipe; the inner wall of each filter pipe is fixedly connected with sponge, the inner wall of each filter pipe is fixedly connected with first-level filter cotton, the inner wall of each filter pipe is fixedly connected with second-level filter cotton, the interior of each filter pipe is fixedly connected with third-level filter cotton, and the outer surface of each filter pipe is in threaded connection with two threaded plugs. The bottom surface of the storage pipe is fixedly communicated with a ground nail pipe, and four permeation holes are formed in the outer surface of the ground nail pipe. According to the underground supporting and anchoring structure for building construction, the purposes that underground seepage water can be continuously absorbed, it is prevented that too much seepage water affects solidification of concrete on the upper portion, and it is avoided that water affects the quality of the concrete are achieved.

The invention belongs to the related technical field of rubber recovery, and provides a thermal cracking carbon black granulator for waste rubber recovery, which comprises a thermal cracking extrusion module and a rubber splitting module connected with the thermal cracking extrusion module, and is suitable for recovery and re-granulation treatment of waste rubber used in a complex external environment. The surface layer of waste rubber is crushed and separated during thermal cracking, so that the purpose of respectively treating the surface layer rubber and the inner layer rubber is achieved, and the situation that the surface layer rubber in which an oxide layer is generated or various impurities are embedded is directly mixed with internal rubber with good quality in long-term use can be effectively avoided; and the influence on the quality of a retreated granulation product is avoided.

The present invention discloses a pressure-regulated casting device for metal casting, comprising a casting mechanism, wherein the outer wall of the casting mechanism is provided with a cleaning mechanism, wherein the cleaning mechanism comprises a double-hole concave block, wherein a rectangular hole is provided on one side of the double-hole concave block, wherein a cover plate is provided on the top of the double-hole concave block, wherein first heat insulation plates are fixed on three sides of the outer wall of the double-hole concave block, wherein each first heat insulation plate is installed with an electric telescopic rod on one side away from the outer wall of the double-hole concave block, wherein the bottom of the cover plate is connected with a baffle plate by a hinge rotation, wherein the bottom of the baffle plate movably penetrates the top of the double-hole concave block, wherein rectangular blocks are fixed on the inner wall front surface and the inner wall rear surface of the double-hole concave block, wherein a bracket is movably sleeved inside the double-hole concave block, wherein a straight-hole ceramic filter is provided inside the bracket. The present invention can effectively solve the quality influence of bubbles mixed in the metal melt on the molded casting by arranging a cleaning mechanism.

The application discloses a solid mixed feed additive production line, which comprises a total distribution box, a screening machine, a premixing machine, a total mixing machine, a bottle sorting machine, a filling machine, a cap screwing machine, an aluminum foil sealing machine, a labeling machine, a boxing machine and a first conveying belt electrically connected with the total distribution box; the screening machine, the premixing machine and the total mixing machine are sequentially arranged, the filling machine, the cap screwing machine, the aluminum foil sealing machine, the labeling machine and the boxing machine are sequentially connected through the first conveying belt, the total mixing machine is arranged above the filling machine and connected with the filling machine through a first feeding spiral; the production line realizes a series of automatic production of solid feed from raw materials to finished product stacking, reduces the residence time of products in production, obviously reduces the influence of production links on products, improves the production efficiency; the closed structure between equipment effectively reduces the dust generated by materials, and avoids the influence of external environment on the feed quality; the product has low oxygen content, good sealing performance and high stability.

The utility model discloses a novel suspension mother liquor bottle stirring structure, relates to the technical field of stirring devices, and aims to solve the technical problems that a stock solution in a mother liquor bottle is relatively inconvenient to mix and easy to leak and the quality of the stock solution is influenced by the conventional stirring structure. The novel suspension mother liquor bottle stirring structure comprises a base, a turnover plate and a frame, and a side plate and a side box are respectively fixed on the upper sides of two ends of the base; the turnover plate is rotatably mounted between the side plate and the side box through a rotating shaft, assembling mechanisms are distributed on the two sides of the turnover plate at equal intervals, each assembling mechanism is composed of an assembling plate, a guide table is fixed to the outer side of each assembling plate, side plates are fixed to the lower ends of the two sides of each assembling plate, and the side plates are slidably sleeved with sliding sleeves. Adjusting grooves are formed in the outer ends of the side plates, the frame is located on the outer side of the assembling plate, sliding blocks are fixed to the lower ends of the two sides of the frame, and the sliding blocks are installed in the corresponding adjusting grooves in a sliding mode. The device has the advantages that a shaking type mixing structure is adopted, and the quality of stock solution is ensured while leakage is avoided.

The utility model relates to the technical field of piston rods, and discloses a few-residue piston rod which comprises a piston rod body, a plurality of threaded layers are arranged on the outer side of the piston rod body, the piston rod body is in threaded connection with a connecting pipe through the threaded layers, and two elastic assemblies are arranged on the connecting pipe. A conical block is fixedly connected to the bottom of the piston rod body, two cavities are formed in the connecting pipes, and rubber sleeves are installed on the outer sides of the multiple connecting pipes. When the device is used, due to the fact that the conical block is conical, when the conical rod meets the polyurethane material, the polyurethane material is better prevented from being attached through the stainless steel material; and the multiple installed connecting pipes can be better attached to the inner wall of the pipeline, and residual materials attached to the inner wall of the pipeline are removed.

This utility model discloses a film chip removal device, belonging to the technical field of film processing equipment. The device includes two opposing fixed seats, with at least two chip-collecting rollers movably connected between them. The two rollers can move towards or away from each other to press or loosen the film. It also includes a chip removal device, which includes an exhaust pipe mounted on the fixed seats. The exhaust pipe's outlet is connected to a fan, and its inlet is connected to a suction pipe via an airflow channel located inside the fixed seats. The suction pipe is fixed between the two fixed seats, and its side wall has a suction port with an arc-shaped plate installed on the inner side wall of the fixed seats. This utility model, through the combined use of the chip-collecting rollers and the chip removal device, can effectively remove debris from the film surface, improving film processing quality. Furthermore, its reasonable structural design results in excellent chip removal performance.

The utility model belongs to the technical field of dip-coating mechanisms, and particularly relates to a graphene dispersion liquid continuous coating and drying device which comprises a supporting frame. The dip-coating mechanism is installed on the surface of the supporting frame and used for conducting dip-coating operation on the yarn; the drying assembly is installed at the position adjacent to the dip-coating mechanism and has the function of dewatering and drying the yarn subjected to dip-coating; wherein the drying assembly comprises a drying unit and a purifying unit, the drying unit is used for executing hot air drying operation, and the purifying unit is used for treating gas emissions generated in the drying process. The device has the beneficial effects that volatile gas and peculiar smell molecules generated in the drying process can be treated through the purification unit, the content of harmful components in the gas is reduced, the influence of direct emission on the air quality is avoided, the environmental friendliness of a production place is effectively improved, the risk that workers inhale pollutants is reduced, and the production efficiency is improved. Meanwhile, physiological discomfort caused by peculiar smell stimulation is reduced, and a safer working environment is provided for operators.

The invention discloses a production process of a regenerated semi-dull antibacterial flame-retardant polyester DTY fiber, wherein the regenerated semi-dull antibacterial flame-retardant polyester POY yarn is sequentially passed through a raw yarn rack, a first roller, a deformation hot box, a cooling plate, a false twister, a second roller, a network nozzle, an auxiliary roller, a shaping hot box, and a third feeding roller, and then oiled by an oiling system, and finally wound to form the regenerated semi-dull antibacterial flame-retardant polyester DTY fiber. The product quality stability of the invention is high, meets the requirements of environmentally friendly production, and meets the differentiated market demand for regenerated fibers.

The utility model discloses a metal spring forming device, which relates to the technical field of processing equipment and comprises an extrusion die, circulation cavities are dug at two ends in the extrusion die, a through cavity is dug at one end of the extrusion die between the circulation cavities, and liquid outlet cavities are dug at the other end of the extrusion die between the circulation cavities. The liquid inlet cavity, the penetrating cavity, the circulating cavity and the liquid outlet cavity form a cooling liquid flowing cavity, the liquid inlet pipe connected to the liquid inlet cavity serves as a cooling liquid entering position, the liquid outlet pipe connected to the liquid outlet cavity serves as a cooling liquid discharging position, and cooling liquid is discharged into the liquid inlet cavity from the liquid inlet pipe, flows through the penetrating cavity, the circulating cavity and the liquid outlet cavity and then is discharged through the liquid inlet pipe. And in the flowing process of the cooling liquid, the high temperature on the extrusion die can be driven, so that the extrusion die can perform extrusion type winding on a steel wire which is stripped from the die under the condition of low temperature, and the influence of the high temperature on the quality of a spring formed by winding the steel wire is avoided.

The invention discloses a method for synchronously extruding marshmallow through multiple channels, and relates to the field of food processing, and the method comprises the following steps: determining a target scheme, preparing syrup raw materials according to the target scheme, setting an initial temperature, extracting syrup historical data, determining initial syrup data of each channel based on the target scheme, the method comprises the following steps: establishing an intelligent color matching extrusion control model based on historical syrup data, comparing a finished product of initial syrup data input and output of each channel with a target scheme, and dynamically adjusting the initial syrup data of each channel according to the target scheme by the intelligent color matching extrusion control model when a cotton candy comparison threshold value is exceeded, final syrup data is formed for each channel. By establishing the intelligent color matching extrusion control model, the quality of a finished product can be pre-judged through the model before actual extrusion, deviation can be found and corrected in time, unnecessary waste and rework in the production process are avoided, and the problems of asynchronous discharging and unstable weight are solved.

The intelligent wind power plant visual monitoring equipment comprises a vertical rod, a moving box and a second camera, a control box is fixedly connected to the surface of the vertical rod, the moving box is vertically and slidably connected to the surface of the vertical rod, a first mounting opening and a second mounting opening are formed in the surface of the vertical rod, and a sliding mechanism for sliding the moving box is arranged in the vertical rod. The second camera is rotationally connected to the interior of the second mounting opening, and a rotating mechanism for rotating the second camera is arranged in the moving box. The mobile box is arranged in an up-and-down sliding mode, the device can be conveniently maintained in use, meanwhile, when the mobile box slides up and down, two clamping blocks can be driven to slide mutually, the stability of the mobile box in use can be improved, more needed pictures can be captured in use through the arranged first camera and second camera, and the use is more convenient. And meanwhile, when the second camera is rotated, the protective cover is driven to move back and forth, so that the second camera can be effectively shaded, and the visual acquisition imaging effect is improved.

The utility model discloses a glue transportation barrel with a wind power stirring structure, which relates to the technical field of glue transportation barrels and comprises a barrel body, the upper end of the barrel body is in threaded connection with a barrel cover, and the upper end of the barrel cover is respectively provided with a manual operation mechanism and a stirring mechanism. By adopting the structure, the connecting seat is mounted at the screw hole of the barrel cover, the upper end of the first connecting shaft on the inner side of the connecting seat is mounted with the mounting head with the wind wheel blade, and the lower end of the first connecting shaft on the inner side of the connecting seat is connected with the second connecting shaft with the stirring blade, so that the stirring mechanism is convenient to assemble; and the wind wheel blades operate through the first connecting shaft and the second connecting shaft which are connected through the mounting head, and meanwhile, the stirring blades on the outer side of the second connecting shaft can be used for conveniently stirring the glue in the barrel body, so that the influence of separation or precipitation of the glue on the quality is avoided.

The utility model relates to a partial composite beam-superposed composite column three-dimensional assembly type connecting joint which comprises a superposed composite column, a main beam and a secondary beam. The overlapped combination column comprises a steel pipe, and reserved pipes are arranged on the two faces, corresponding to the main beam, of the steel pipe. Each of the main beam and the secondary beam comprises an internal stress assembly and an external stress assembly, the internal stress assembly comprises H-shaped steel, and the external stress assembly is arranged between an upper flange and a lower flange of the H-shaped steel; the end, facing the laminated combination column, of a web of the H-shaped steel of the secondary beam protrudes and is provided with an open hole. The utility model has the beneficial effects that the prefabricated superposed combination column and the partial combination beam with the steel joint are adopted and can be quickly mounted after being transported to a site, the connection between beam and column members is convenient, quick, firm and reliable, the workload of on-site molding, mounting and welding is reduced, and only later concrete spraying construction is required after mounting and connecting, so that the construction efficiency is greatly improved. On the premise of ensuring the quality, the on-site construction procedure is simplified, and the construction time is saved.

This invention relates to a method for forming irregularly shaped inner diameter rings, comprising the following steps: blanking: cutting the raw material to a specified length on a saw to obtain a billet; pre-forging heating: heating the billet to the forging temperature and holding it at that temperature; upsetting and punching: upsetting the billet to a set height on a press, and punching holes in the billet using a punch to obtain a ring blank; pre-rolling: rolling the ring blank using a ring mill, with the first working part of the mandrel rolling the straight wall inside the through hole of the ring part to obtain a rectangular cross-section ring part; final rolling: moving the mandrel down to the second station position, rolling the rectangular cross-section ring part using a ring mill, with the second working part of the mandrel rolling the groove inside the through hole of the ring part to obtain an irregularly shaped cross-section ring part. In this invention, the ring rolling process only requires one heating and holding time, and the continuous rolling of the ring blank using a dual-station mandrel greatly shortens the processing time and improves processing efficiency. Furthermore, by eliminating multiple heating cycles, energy is saved, and the impact of repeated heating on the quality of the ring part is avoided, ensuring product quality.

The utility model relates to fertilizer mixing equipment technical field, concretely is a kind of mobile mixer for organic fertilizer production, including bottom plate, install with mixing cylinder on bottom plate, the top of mixing cylinder is symmetrically equipped with feed inlet, the outside of mixing cylinder is equipped with observation window, further include: the combined component of being installed on mixing cylinder, combined component is used to clean while stirring;And, cleaning component is installed on mixing cylinder, cleaning component is used to clean the inner wall of mixing cylinder, the utility model is equipped with combined component, through combined component can be mixed while the fertilizer to the inner wall of mixing cylinder can be scraped and cleaned, through reinforcing rod and mixing rod can make fertilizer mixing more evenly, ensure that the proportion of the component of organic fertilizer is accurate, can prevent the inner wall of mixing cylinder from sticking fertilizer simultaneously, not only ensure the cleaning of mixing cylinder, avoid residual fertilizer to influence subsequent batch fertilizer quality, but also can reduce fertilizer waste, reduce production cost.

The invention relates to the technical field of fine chemical engineering, in particular to weak-acid-resistant calcium carbonate as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a water glass solution with calcium carbonate powder, and carrying out first modification to obtain modified calcium carbonate powder; and mixing a sodium fluosilicate solution with the obtained modified calcium carbonate powder, curing, and adding a composite modifier for secondary modification to obtain the weak acid-resistant calcium carbonate. The acid resistance of the weak acid-resistant calcium carbonate powder prepared by the method is improved in application, agglomeration is not easy to generate, and the problem that calcium carbonate generates bubbles, holes and pulverization in an acid environment to influence the quality of downstream products is solved by improving the acid resistance.