616results about How to "Increase production cost" patented technology

The invention discloses a food conveying device with an anti-falling mechanism for food processing, and relates to the technical field of food processing.The food conveying device with the anti-falling mechanism for food processing comprises a mounting frame, a conveying assembly is arranged on the mounting frame and comprises a driving motor and a conveying belt, and the conveying belt is rotationally mounted on the inner side of the mounting frame; the driving motor fixedly penetrates the side wall, away from the conveying belt, of the mounting frame. The output end of the driving motor is fixedly connected with a driving shaft of the conveying belt. According to the food conveying device with the anti-falling mechanism for food processing, multiple sets of partition plates arranged at equal intervals are arranged on the conveying belt, dough can be separated to be conveyed, material collision is prevented, when the dough is conveyed to the end of the conveying assembly, a push block rotates, the push block applies extrusion force to the dough, the dough is extruded and pushed, and the dough is conveyed to the end of the conveying assembly. The dough can be pushed away from the conveying belt, and the situation that the dough adheres to the conveying belt and is inconvenient to fall off is prevented.

The invention discloses an intelligent production scheduling method for a long-period operation chemical device, which takes a real-time state of a production device and a predicted future health condition as one of important basis of production scheduling, combines a traditional equipment failure mechanism model with a GBDT algorithm, can predict an equipment health level at a future moment, and improves the production scheduling efficiency. Guiding the dynamic adjustment of the equipment load and the production scheduling; and then iterative optimization of the scheduling scheme is carried out by using an adaptive genetic algorithm, dynamic adaptive crossover probability and mutation probability adjustment is carried out on the scheduling scheme in the intermediate process, and the rate of convergence of the algorithm to a globally optimal solution is improved. From the aspect of application effects, the long-period operation characteristic of the large chemical device and the continuity and stability of the production process can be considered while the production efficiency and the cost are ensured, and a scientific and feasible technical implementation scheme is provided for the production scheduling of the large device of a chemical enterprise.

The utility model relates to the technical field of water playing toys, in particular to a toy water polo which comprises a flexible shell, a flexible cover and an elastic arm, and a water storage cavity and an opening communicated with the water storage cavity and the external space of the flexible shell are defined in the flexible shell; the outer contour of the flexible cover body is larger than the contour of the opening so as to seal the water storage cavity, and the elastic arm is connected with the side, facing the external space, of the flexible cover body and applies outward acting force to the flexible cover body. When the toy water ball is used, water can be filled into the water storage cavity or the water in the water storage cavity overflows from the opening only by enabling the toy water ball to deform under stress and exposing the water storage cavity through the opening. Compared with a magnetic attraction type toy water polo in the prior art, the toy water polo does not need to be internally provided with a magnetic piece, and safety and production cost are high. Compared with a non-magnetic toy water polo in the prior art, the toy water polo has the advantages that the flexible cover body can be tightly attached to the inner wall of the water storage cavity under the action of the elastic arm, so that the toy water polo has good sealing performance.

The invention discloses a short-process preparation method and application of a vanadyl sulfate electrolyte based on vanadium slag valence regulation and control, and belongs to the technical field of vanadium electrolytes. The method comprises the following steps: leaching the vanadium slag by using sulfuric acid to obtain a leaching solution containing low-valence vanadium; extracting vanadium and chromium in the leachate by adopting an amine organic extraction agent; carrying out reverse extraction by using sulfuric acid; the method comprises the following steps of: firstly, extracting and separating vanadium by using a phosphoric acid extracting agent, and finally, carrying out reverse extraction by using sulfuric acid to obtain the vanadium electrolyte which can be used for constructing a VFB-5kW / 10kWh vanadium battery energy storage system. The traditional established thinking that pentavalent vanadium is extracted through vanadium slag oxidation to serve as a vanadium source to prepare the vanadium electrolyte is broken through, the novel technology for extracting the low-valence vanadium solution from the vanadium slag to directly prepare the vanadium electrolyte is provided, the short-process and green novel technology for preparing the vanadium electrolyte from the vanadium slag is constructed, the efficiency of the vanadium electrolyte preparation technology is improved, and the preparation cost is reduced.

The invention discloses a preparation method of a coal-based yellow fluorescent carbon dot aqueous solution, which comprises the following steps: drying lignite to constant weight, grinding, sieving to obtain a primary coal sample, and weighing the primary coal sample; adding the weighed primary coal sample into a mixed solution of peracetic acid and hydrogen peroxide, stirring, and filtering to obtain a pretreated coal sample; the method comprises the following steps: mixing a coal sample with water, stirring to obtain a lignite solution, transferring the lignite solution into a cavitation device, starting a cavitation program, and adjusting and maintaining the flow; collecting circulating liquid in the cavitation device, and filtering to remove residual large particles to obtain an aqueous solution of the coal-based carbon dots; the method comprises the following steps: pretreating a coal sample by using a mixed solution of peracetic acid and hydrogen peroxide, and stripping the coal sample by combining a hydrodynamic cavitation method to prepare a carbon dot with yellow fluorescence; the method is low in cost, environmentally friendly, simple in equipment and huge in large-scale production potential, and a new method and thought are provided for enriching polychromaticity of the coal-based carbon dots.

The invention provides a glass core plate of an FCBGA packaging substrate and a manufacturing method of the glass core plate, and the manufacturing method of the glass core plate comprises the following steps: providing a glass plate comprising a first surface and a second surface which are oppositely arranged, and defining at least one of the first surface and the second surface as a functional surface of the glass plate; forming a metal seed layer covering the functional surface of the glass plate, and forming a shielding layer on the surface, away from the glass plate, of the metal seed layer; patterning the shielding layer to form a plurality of first openings exposing the metal seed layer in the shielding layer; conductive circuits filling the first openings are formed, and the shielding layer is removed to obtain second openings located between the two adjacent conductive circuits; and removing the metal seed layer at the bottom of the second opening to obtain the glass core plate. According to the FCBGA packaging substrate, the glass plate which is low in thermal expansion coefficient and high in glass transition temperature is adopted as the core plate of the glass core plate in the FCBGA packaging substrate, warping of the substrate is reduced, and the reliability of the substrate and the yield of products are improved.

The invention discloses a biological fermentation intelligent optimization method based on multi-objective optimization, and the method comprises the following steps: 1) collecting whole-process parameters of a biological fermentation process, including but not limited to raw material parameters, process parameters, regulation and control parameters and result parameters; 2) carrying out data cleaning and preprocessing on the collected parameters, and carrying out data enhancement by adopting a generative adversarial network (GAN) so as to solve the problem of insufficient samples and improve data representativeness; by integrating various advanced optimization algorithms and data enhancement technologies, the efficiency and benefits of the biological fermentation process are remarkably improved. Meanwhile, various control parameters are optimized, and the stability and precision of the process are ensured. Besides, through Pareto frontier analysis, the optimal balance among a plurality of targets can be realized, the production efficiency and the cost are further optimized, and the technical scheme is proved to have remarkable advantages in the aspects of improving the yield, reducing the cost and simplifying the process.

The invention discloses a recovery method for extracting lithium, copper and aluminum from waste lithium iron phosphate batteries. The method comprises the following steps: firstly, pretreating the lithium iron phosphate waste battery to obtain a sheet-shaped positive and negative pole piece mixture, then leaching the pole piece mixture by taking a ferric iron salt solution as a leaching agent, and filtering to obtain a lithium-containing leachate and ferrophosphorus slag containing copper and aluminum current collectors; and oxidizing the lithium-containing leaching solution, adjusting the pH value, filtering and separating to obtain a lithium-containing purified solution and ferric hydroxide precipitate. Continuously increasing the pH value of the lithium-containing leachate to remove impurities, adding a sodium carbonate saturated solution, and precipitating and crystallizing to obtain lithium carbonate; and dissolving the ferric hydroxide precipitate with dilute acid to prepare a ferric salt solution which is circularly used as a leaching agent. Comprising ferrophosphorus slag of copper and aluminum current collectors, a copper and aluminum current collector mixture and the ferrophosphorus slag are obtained through separation of hydrodynamic screening equipment, the copper and aluminum current collector mixture is dried, ground and then separated through a specific gravity separator, and copper powder and aluminum powder are obtained. According to the method, the technological process is shortened, the project investment and the production cost are relatively low, and the method is suitable for large-scale recycling treatment of the waste lithium iron phosphate batteries.

The invention discloses a flash and top blowing coupled molten pool tin smelting device and method, and belongs to the technical field of pyrogenic smelting of crude tin. Tin concentrate, fuming enriched tin middling and powdery tin smoke dust are subjected to ore blending with a flux and then are smelted; adding a carbonaceous reducing agent into the molten pool, and reducing to form a CO reducing atmosphere layer at the upper part of the slag layer; and blowing fluidized bed furnace roasting dry powder to the upper part of the CO reducing atmosphere layer, carrying out flash reduction smelting on the fluidized bed furnace roasting dry powder, enabling the fluidized bed furnace roasting dry powder which is not subjected to flash reduction smelting to enter a molten pool, and continuing to carry out a reduction stage in top-blowing molten pool smelting, so that flash and top-blowing coupling is realized, and crude tin is prepared. According to the invention, flash melting pool smelting and top-blowing melting pool smelting are effectively coupled together, fuel consumption can be reduced by about 20%, and the bed capacity is obviously improved.

The invention provides an enamel veneering repair material and a preparation method thereof, and belongs to the technical field of ceramic forming products. In order to further improve the attaching property of a tooth veneering material, reduce the amount of abraded tooth tissues and reduce the risks of ceramic collapse and falling off. Zirconium oxide, aluminum oxide, hydroxyapatite, silica dimethylsilylate, silicon dioxide, fluorapatite, magnesium oxide, thermosetting acrylic resin, aluminum hydroxide gel, a silane coupling agent, polyvinyl alcohol, sodium phytate and the like are adopted as raw materials, all the components are matched according to a certain proportion, and a special technology is adopted for preparing the tooth patch. While good biocompatibility, high hardness and wear resistance are ensured, the adhesion can be further improved, the removal amount of tooth tissues by grinding is reduced, the risks of ceramic collapse and falling are reduced, the service life is prolonged, and better use experience is provided.

The invention relates to the technical field of blow molding, and particularly discloses a plastic bottle production device which comprises a machining table, a rotating rod is rotationally connected to the inner wall of the machining table, the outer surface of the rotating rod is sleeved with a conveying belt, a clamping assembly is placed on the outer surface of the conveying belt, and a temperature control chamber is fixedly installed on the upper surface of the machining table. According to the bottle preform machining device, adjustment can be conducted through the clamping assemblies according to the sizes of bottle preforms, the bottle preforms of different specifications can be limited, the bottle preforms can be flexibly clamped, meanwhile, the bottle preforms can be kept in the middle all the time in the feeding process, and the machining efficiency is improved. Through the blow molding assembly, it can be guaranteed that molds are always aligned under the condition of long-time use, when the molds incline or are not aligned, an alarm can be given out in time, workers can carry out maintenance in time, and it is guaranteed that the wall thickness of a bottle is uniform during blow molding.

The invention relates to the technical field of mechanism design, and discloses a hard disk frame module and a server, the hard disk frame module comprises a hard disk frame, the hard disk frame is provided with a hinge end and a free end, the hinge end is used for being rotatably connected with the side wall of a case, and the hard disk frame has a first state in which the free end is turned up relative to the case; in the second state, the free end is arranged in the case; the handle is rotatably arranged at the free end of the hard disk frame, the handle is provided with a first abutting part, the bottom wall of the case and / or the hard disk frame module further comprises a bottom support, and when the first abutting part abuts against the bottom support, the hard disk frame is in a first state. According to the hard disk frame module provided by the embodiment of the invention, devices such as a cable, a plug-in card and a radiator below the hard disk frame module can be maintained under the condition that the hard disk frame does not need to be disassembled, and the defect that in the related technology, the hard disk frame can only be overturned within a small angle range and cannot be overturned can be overcome. And an operator cannot conveniently maintain components such as a mainboard at the bottom of the hard disk frame.

The invention relates to the technical field of hardware surface treatment, and particularly discloses a hardware surface oxidation treatment process and system, which realizes accurate control of the growth process of an oxidation film by monitoring the growth rate and the current density value of the oxidation film on the surface of a hardware product in real time, and specifically comprises the following steps: acquiring the growth rate data of the oxidation film; comparing with a preset range to identify an abnormal signal; analyzing the current density value and the correlation between the current density value and the growth rate of the oxide film based on the abnormal signal; the current density is adjusted to a target value according to an analysis result, and it is ensured that the growth rate of the oxidation film meets expectations, the quality and uniformity of the oxidation film can be effectively improved, energy consumption is reduced, the method is suitable for the surface treatment process of various hardware products, the product quality is improved through accurate control over the growth process of the oxidation film, and the production cost is reduced. And the production cost is reduced, and remarkable technical and economic values are achieved.

The invention discloses an underwater inspection robot with an underwater net cage damage position indicating device. The indicating device mainly comprises an upper clamping jaw and a lower clamping jaw, the first locking mechanism is used for keeping the lower clamping jaw and the upper clamping jaw in an open state; the second locking mechanism is used for keeping the lower clamping jaw and the upper clamping jaw in a clamping state when the first locking mechanism is unlocked; a buoy, a connecting wire and a wire coil; the third locking mechanism is used for fixing the wire coil relative to the mounting seat when the first locking mechanism enables the lower clamping jaw and the upper clamping jaw to be kept in an open state; during use, when the underwater inspection robot finds a damaged part of the underwater net cage, the first locking mechanism is unlocked, the second locking mechanism enables the lower clamping jaw and the upper clamping jaw to keep a clamping state, the third locking mechanism is unlocked, the connecting wire is released from the wire coil under the buoyancy action of the buoy, and finally the buoy emerges from the water surface. The damage position can be accurately marked, and manual repair can be conveniently guided in time.

The present invention provides a method for producing sodium tetrachloroaluminate, and relates to the technical field of chemical synthesis, in order to solve the problem that the newly introduced nitrogen has not been subjected to temperature treatment, and as the nitrogen is introduced and discharged, the heat in the reaction system is lost as the nitrogen flows. The method for producing sodium tetrachloroaluminate comprises: adding raw materials into a reaction tank; when a shutoff air inlet pipeline connected to the reaction tank is controlled to be in a conducting state, and a shutoff exhaust pipeline connected to the reaction tank is in a closed state, an inert gas is introduced into the reaction tank; when the pressure in the reaction tank reaches a preset value, the shutoff air inlet pipeline connected to the reaction tank is controlled to be in a closed state; heating the raw materials in the reaction tank to obtain a semi-finished product; transferring the semi-finished product into a settling tank; adding aluminum foil into the settling tank containing the semi-finished product, introducing an inert gas and keeping it still to obtain sodium tetrachloroaluminate; transferring the sodium tetrachloroaluminate into a storage tank into which the inert gas is introduced.

The invention discloses a sliding door locking structure and a sliding door mechanism, the sliding door locking structure comprises a lock box, the lock box comprises a lock box assembly part and a lock groove, and the lock box assembly part is used for being assembled with an upper rail; the vertical frame is provided with a sliding rail in the length direction of the vertical frame, and the vertical frame is used for being assembled with the side edge of the door body; the lock rod is arranged in the sliding rail in a sliding mode, one end of the lock rod is used for being connected with the lock groove in a matched and inserted mode, and the other end of the lock rod is in linkage with a handle of a door body so that the lock rod can stretch into or be separated from the lock groove. A lock hole or a lock tongue does not need to be arranged on the side edge of the door body, key components such as the lock box and the lock rod are hidden in the upper rail and the vertical frame, exposure of the lock is reduced, the safety of the door body is improved, meanwhile, the structure of the lock is simplified, the production efficiency is improved, and the production cost is reduced.

The invention belongs to the technical field of stem cell development and differentiation, and discloses application of polypeptide DGEA or a derivative thereof in promoting pluripotent stem cells to be differentiated into mesenchymal stem cells. The invention specifically discloses application of the polypeptide and the derivative thereof in promoting differentiation of pluripotent stem cells into pluripotent stem cells or preparing products for promoting differentiation of pluripotent stem cells into pluripotent stem cells. The amino acid sequence of the polypeptide is DGEA. The invention discloses the application of DGEA in promoting differentiation of pluripotent stem cells (embryonic stem cells, embryonic germ cells or induced pluripotent stem cells) into pluripotent stem cells (mesenchymal stem cells) for the first time, and the effect of DGEA is verified through corresponding experiments. The DGEA can obviously improve the efficiency of differentiating the embryonic stem cells, the embryonic germ cells or the induced pluripotent stem cells into the mesenchymal stem cells, and the obtained mesenchymal stem cells are high in safety and high in differentiation capacity.

The invention discloses a riveting device for bus duct production, and relates to the technical field of bus duct product.The riveting device for bus duct production is characterized in that a protective cover is fixedly connected to the upper portion of a workbench, a riveting mechanism is arranged below the protective cover, a moving mechanism is arranged at the lower end of the workbench, and supporting columns are fixedly connected to the four corners of the lower end of the workbench; a supporting mechanism is arranged on the outer wall of the supporting column. According to the riveting device for bus duct production, by arranging the riveting mechanism, when a material limiting block is extruded, a connecting block is driven to move downwards, a convex block on the outer wall of the connecting block slides along a wave-shaped groove, the material limiting block rotates, the concave position of the material limiting block is right opposite to the lower portion of an outlet of a discharging box, and a rivet can fall into a first shell; and the situation that the fingers of a worker are injured by the device due to the fact that the worker directly makes contact with the clamping device of the rivet, the wound is infected, and the body health of the worker is affected is avoided.

The invention provides a low-odor ratproof extrusion-grade polypropylene material, a preparation method and an electrical material, and belongs to the field of polypropylene materials. The polypropylene is used as a main body, the flexibilizer is used for modifying the polypropylene, the used flexibilizer is linear low-density polyethylene and polyolefin elastomer, the melt strength of the flexibilizer is higher, the flexibilizer and the polypropylene are all olefins and have good compatibility, the price of the low-density polyethylene is lower, and the price of the polyolefin elastomer is higher, so that the low-density polyethylene, the polyolefin elastomer and the low-density polyethylene are combined, and the polypropylene is modified. According to the low-odor rat-proof extrusion-grade polypropylene material, the impact resistance of the polypropylene material is enhanced while the production cost is guaranteed, meanwhile, in order to improve the flame retardance of the low-odor rat-proof extrusion-grade polypropylene material, the flame retardant and the mineral substances are added, and the rat-proof agent is further added to prevent the material from being bitten by rats and insects and causing damage to the material; in addition, a special thread element is used in the double-screw extruder, so that the feeding amount is increased, the shearing heat is reduced, the melt temperature is reduced, and the odor grade of the material is reduced.

The utility model relates to the technical field of textile dyeing, and discloses a high-color-fastness yarn dyeing device which comprises a supporting plate, a bottom plate is fixedly connected to the upper surface of the supporting plate, a partition plate is fixedly connected to the upper surface of the bottom plate, a top plate is fixedly connected to the upper surface of the partition plate, and a first motor is arranged on the upper surface of the top plate. According to the high-color-fastness yarn dyeing device, by arranging the containing pipe and the yarn cylinder, dye can flow out of yarn, by arranging the stirrer, the dye can be evenly mixed with the yarn, and the effects that dip dyeing and coloring can be conducted on the yarn from the interior of the yarn, the yarn is evenly colored, and the color fastness of the yarn is improved are achieved; the problems of uneven coloring, low color fastness and the like in the dip dyeing process of common dyeing equipment are solved, and the problems that if the dip dyeing time is prolonged and the dye concentration is increased to improve the dyeing effect, the production cost is increased, and the environment is possibly polluted are solved.

The invention provides a method for eliminating delta ferrite in austenitic stainless steel and the austenitic stainless steel, and belongs to the technical field of metal materials. The method comprises the following steps that an austenitic stainless steel ingot containing the delta ferrite is subjected to heat preservation for first set time at the first set temperature for first heat treatment; heating the austenitic stainless steel ingot subjected to the first heat treatment to a second set temperature, and carrying out heat preservation for a second set time at the second set temperature for second heat treatment; and cooling the austenitic stainless steel ingot subjected to the second heat treatment, or sequentially and repeatedly carrying out the first heat treatment and the second heat treatment on the austenitic stainless steel ingot subjected to the second heat treatment for at least one time, and then cooling to obtain the austenitic stainless steel subjected to delta ferrite elimination. The first heat treatment and the second heat treatment are performed, and the second set time is limited, so that the austenitic stainless steel is prevented from being in a high-temperature environment for a long time, and austenite grains are prevented from obviously growing.

The invention discloses a composite refined grain and Fe-rich phase regulated refining agent, a preparation method and application, the composite refined grain and Fe-rich phase regulated refining agent comprises the following elements in percentage by weight: 4.85-5.2% of Ti, 0.5-0.8% of B, 6-8% of Sr, 4.5-5.5% of Mo, less than or equal to 0.2% of Fe, less than or equal to 0.15% of Si and the balance of Al and inevitable impurities, each impurity is less than or equal to 0.05%, and the sum of the impurities is less than or equal to 0.15%. The refiner is used for grain refinement and Fe-rich phase regulation and control of the high-Fe-content aluminum alloy, and the Fe-rich phase regulation and control of the regenerated aluminum alloy can achieve the effect that long needle-shaped beta-Fe is converted into Chinese character-shaped alpha-Fe, or the alpha-Fe is converted into small-size Chinese character-shaped or skeleton-shaped from complex fishbone-shaped, flower-shaped and long-strip-shaped; the strength of the refined aluminum alloy is improved by at least 15% compared with the strength of the aluminum alloy obtained through a traditional refining agent.

A filter assembly sealing detection device disclosed by the present invention comprises a synchronous driving device, an automatic loading and unloading assembly, a pressure detection assembly, a water immersion detection assembly and a PLC console, the synchronous driving device comprises a lifting carriage and a lifting toothed bar, and the automatic loading and unloading assembly comprises a chain plate type conveyor and a sliding material seat assembly. The pressure detection assembly and the water immersion detection assembly are arranged on the surface of the lifting sliding frame and the inner wall of the chain plate type conveyor respectively. According to the invention, comprehensive automation of the sealing performance detection of the filter assembly is realized, an efficient loading and unloading operation function is integrated, the labor intensity of workers is greatly reduced, the working efficiency is remarkably improved, and the application of the automation technology effectively reduces human errors and loss in the production process, so that the production cost is reduced, and the production efficiency is improved. The introduction of the automatic production line remarkably improves the overall productivity of the production line, so that enterprises can quickly respond to market requirements, and the market competitiveness is improved.

The present invention relates to a highly moisturizing spunlace nonwoven fabric, including a hydrophilic nonwoven fabric surface layer, hydrophilic fiber strands, a hydrophilic fiber net and a fiber moisturizer. The upper surface and the lower surface of the hydrophilic fiber net are both connected to a layer of hydrophilic nonwoven fabric surface layer, the fiber moisturizer is embedded in the hydrophilic fiber net, and the hydrophilic nonwoven fabric surface layer and the hydrophilic fiber net are connected by a plurality of hydrophilic fiber strands, and the hydrophilic fiber strands are distributed in a mesh structure. The preparation process includes two steps, namely, fiber net processing and classification processing. The present invention has good structural strength and toughness, and also has good moisture retention, effectively increases the use function and service life of nonwoven products, and at the same time, in the production process, effectively improves the efficient repeated recycling of production raw materials, and reduces the loss of raw materials caused by the loss of textile production raw materials, increases production costs, and effectively prevents environmental pollution caused by the loss of raw materials.

The invention discloses preparation equipment and a preparation method of high-purity phosphorus trifluoride, the preparation equipment comprises a micro-channel reactor, the micro-channel reactor comprises a plurality of reaction modules, each reaction module comprises a first reaction cavity arranged on the side surface of a fixed substrate in a convex manner, and the other side surface of the fixed substrate is provided with a plurality of second reaction cavities in a convex manner; a material guide hole for communicating the first reaction cavity with the second reaction cavity is formed in the fixed base plate; a feeding hole is formed in the fixed base plate, and the feeding hole is outwards connected with a corresponding three-way feeding pipe; a discharging hole is formed in the fixed base plate, and the discharging hole is outwards connected with a corresponding discharging pipe; and the condenser comprises a condensation cylinder, the two ends of the condensation cylinder are fixedly connected with sealing plates, the top of the condensation cylinder is upwards connected with a pre-cooling cylinder, the top of the pre-cooling cylinder is closed, and the discharging pipe is connected to the top of the pre-cooling cylinder in parallel. The production efficiency can be improved, and the quality stability of products can be ensured.

The utility model provides a leakproof plastic bucket structure for storing chemical waste liquid. The leakproof plastic bucket structure comprises a main body, the utility model relates to the technical field of chemical barrels, and compared with the prior art, an operator can accurately control the discharging amount of materials according to needs through the adjusting assembly, the excessive or insufficient situation is avoided, and therefore the accuracy and reliability of the production process are improved, and the production efficiency is improved. Furthermore, the material proportioning and mixing accuracy in the production process is ensured, the product quality and performance stability are ensured, the risk of fire disasters, explosions or other safety accidents caused by excessive material leakage is reduced, the safety of a working place is improved, in addition, material waste can be effectively reduced through the leakage-proof assembly, and the production cost is reduced. And especially for high-value or scarce materials, the production cost can be reduced, and the economic benefit can be improved.

The utility model provides an automatic pouring device for producing ladle castable, which relates to the technical field of ladle pouring and comprises pouring equipment and a pouring mould, one side of the pouring equipment is rotatably connected with a bearing plate, an outer fixed barrel is fixed at the top of the bearing plate, a discharge nozzle is fixed on the peripheral surface of the outer fixed barrel, and the inner wall of the outer fixed barrel is rotatably connected with an inner rotating barrel. A mode of installing an inner rotating barrel is adopted to solve a series of problems that the performance of a plurality of materials can be changed at a high temperature in the pre-pouring stage, the materials which can keep the characteristics of the materials and can be effectively stirred are difficult to find, the uniformity of the pouring materials is insufficient, and a series of problems can be caused as firstly, the non-uniform pouring materials can influence the flowability of the pouring materials; the problems of incomplete filling, excessive bubbles and the like occur in the pouring process due to the fact that the existing pouring materials are not uniform, the performance and the service life of products are directly affected by insufficient strength after pouring forming due to uneven pouring materials, and finally, if the yield is reduced, the production cost is increased, the production efficiency is reduced, and even the market competitiveness of enterprises is affected.

The invention discloses a method for preventing steel for producing pure iron by a pusher-type heating furnace from generating cracks. The method comprises the following steps: changing a charging and discharging mode and ensuring in-furnace time; improving a heating process; the special roller is specially used; bending is controlled, and perpendicularity is improved. According to the production method for eliminating the defects of the industrial pure iron flat steel rolled by the double furnaces, the defects of the pure iron rolled by the double furnaces are eliminated, double-furnace production is carried out by adopting the pusher furnace and the stepping furnace at the same time, the yield and the product physical quality are improved, the yield is increased, the efficiency is increased, and meanwhile the product quality percent of pass reaches 97% or above.

The preparation method comprises the following steps: uniformly stirring steel slag and tailings according to a mass ratio of (2-3): (7-8) at a high speed, adding water, continuously stirring to obtain a turbid solution, slowly adding sodium silicate into the turbid solution under high-speed stirring to obtain a mixed solution, simultaneously dropwise adding a water reducing agent and a thickening agent into the mixed solution under stirring, and uniformly stirring to obtain a slurry; and finally, carrying out a slump test on the mixture, and determining the addition amount of silica gel or water according to a test result, so as to obtain the flow-state solidified soil based on the large-particle waste residues. According to the method, through the innovative material ratio and preparation process, the stirring and pumping performance of the large-particle material is improved, the segregation risk is reduced, the homogeneity and stability of the fluid-state solidified soil are improved, meanwhile, the production cost is reduced, batch consumption of a large amount of solid waste is achieved, and the problem that use of the large-particle material in traditional fluid-state solidified soil is limited is solved.

The utility model provides an edge sealing structure of a packaging bag making machine, which relates to the technical field of packaging bag manufacturing and processing and comprises an operation table, a motor is arranged on one side of the top wall of the operation table, a right-hand and left-hand thread screw rod is arranged at the output end of the motor, and two movable plates are in threaded connection with one side of the surface wall of the right-hand and left-hand thread screw rod. Two supporting plates are fixedly connected to one side of the top wall of the operation table, sliding rods are fixedly connected to one sides of the surface walls of the two supporting plates, the sliding rods are slidably connected with the two movable plates, and the right-hand and left-hand threaded lead screw is rotatably connected with the two supporting plates and is driven to rotate through rotation of the output end of the motor. The right-hand and left-hand thread lead screw rotates to drive the movable plate to move on the first sliding groove, then the packaging bag is driven to be centered under the action of the extending plate, and the problems that due to the fact that thin film materials deviate in the sealing process, sealing lines are irregular, the sealing missing phenomenon occurs, the sealing performance and attractiveness of the packaging bag are affected, and the production cost of the packaging bag is increased are avoided.