751results about How to "Avoid uniformity" patented technology

The invention relates to the technical field of rock and soil reinforcement, in particular to a method for curing sandy soil by inducing calcium carbonate precipitation through urease. The preparation method comprises the following steps: crushing urease-containing plant seeds to obtain urease-containing powder; the urease-containing powder is mixed with sandy soil, and mixed sandy soil is obtained; the cementing liquid is poured into the mixed sandy soil to form calcium carbonate, and sandy soil solidification is achieved; the cementing liquid is an aqueous solution containing urea and calcium ions. The method provided by the invention not only can solve the problem that urease is difficult to extract and store, but also can increase the thickness of a curing layer and improve the mechanical property, and the method is simple and easy to implement, low in cost and free of risk.

The utility model discloses a wafer rotary drying device. The wafer rotary drying device comprises a rotary platform; the multiple clamping jaws are distributed in the circumferential direction of the rotating platform at intervals. The clamping jaws are connected to the rotating platform through rotating shafts correspondingly. The side, facing the wafer, of the clamping jaw is provided with a horizontal placement face used for horizontally supporting the back face of the wafer. The climbing surface is arranged on the peripheral side of the horizontal placement surface; the clamping surface is arranged on the peripheral side of the climbing surface and can be matched with the climbing surface to clamp the edge of the wafer; when the rotating platform rotates, the upper portions of the clamping jaws rotate inwards and downwards, the clamping face and the climbing face of each clamping jaw are matched, and the multiple clamping jaws clamp the wafer together. The utility model also discloses a wafer rotary drying method. According to the utility model, the cleaning and drying effects of the back of the wafer are improved; the rotating platform does not participate in clamping of the wafer, so that the number of consumables is remarkably reduced; relative sliding of the wafer and the clamping jaw is effectively avoided, and rotation stability is improved.

The invention belongs to the technical field of shot blasting processes, and provides a self-adaptive aero-engine blade surface shot blasting control system and a shot blasting process. The system comprises a measurement module used for obtaining the three-dimensional geometrical shape of the complex surface of the blade and generating a digital three-dimensional model; the sensor module is used for monitoring and feeding back the shot blasting process condition in real time; the control module is used for dynamically adjusting shot blasting parameters by adopting a self-adaptive algorithm; the shot blasting execution module is used for executing a shot blasting process; the real-time monitoring feedback module is used for dynamically adjusting shot blasting parameters; the process comprises the steps that after the blade surface is cleaned, a three-dimensional model generated by a measuring module and surface data measured by a sensor module are fed back to a control module, a shot blasting injection parameter instruction is obtained through a fuzzy control algorithm, and a shot blasting machine execution module executes the shot blasting process. And the real-time monitoring feedback module dynamically adjusts shot blasting parameters until the shot blasting process requirements are met. According to the invention, accurate and uniform shot blasting treatment on the surface of the blade in a complex shape can be realized.

The invention relates to the technical field of laser sensing, in particular to a laser ranging calibration method and system based on a laser sensor and application of the laser ranging calibration method and system. The method comprises the following steps: acquiring a space coordinate data set of a plurality of points on a wall surface through a plurality of groups of high-precision long-stroke laser sensors; according to the space coordinate data set, plane fitting based on singular value decomposition is carried out on the wall face, and therefore a virtual plane and normal vector data of the virtual plane are obtained; obtaining mechanical arm normal vector data of a current plane of a mechanical arm of the wall surface scraping equipment; normalizing the normal vector data of the mechanical arm, the virtual plane and the normal vector data of the virtual plane, calculating a rotation axis and a rotation angle between the mechanical arm and the virtual plane, and generating rotation matrix data by using a Rodrigue rotation formula; according to the method, accurate parallel alignment of the mechanical arm and the wall surface is achieved through singular value decomposition and the Rodrigues rotation formula, and the construction precision is improved.

The invention discloses a method for preventing a high-carbon tool steel hot rolled steel coil from being flattened, which comprises the following steps of: providing a continuous casting slab which comprises the following components in percentage by mass: 0.65 to 1.35 weight percent of C, 0 to 1.6 weight percent of Si, 0 to 1.2 weight percent of Mn, 0 to 1.2 weight percent of Cr, less than or equal to 0.030 weight percent of P, less than or equal to 0.030 weight percent of S and the balance of iron and inevitable impurities; the charging temperature of the continuous casting sheet billet is larger than or equal to 300 DEG C, the continuous casting sheet billet is fed into a heating furnace to be heated, the discharging temperature of the continuous casting sheet billet is 1150-1250 DEG C, and a first sheet billet is obtained; the first plate blank is subjected to rough rolling, the rough rolling and finish rolling temperature ranges from 1050 DEG C to 1150 DEG C, and an intermediate blank is obtained; the intermediate billet is subjected to finish rolling, the finish rolling temperature of finish rolling is 800-950 DEG C, and finish rolled steel is obtained; laminar cooling is conducted on the finish-rolled steel in a front-section centralized cooling mode, final fine adjustment water and front and rear side spraying of laminar cooling are closed, the temperature of the finish-rolled steel is reduced to the first target temperature to the phase transformation point, and cooled steel is obtained; and the cooled steel is coiled at the temperature of 590-690 DEG C, the coiling tension is increased by 10%-20% in the coiling process, and a hot rolled steel coil of the high-carbon tool steel is obtained.

The invention provides a cable insulation performance detecting and repairing device and method. The cable insulation performance detecting and repairing device comprises a cable laying device, a detecting mechanism, a repairing mechanism and a cable collecting device. The cable laying device is used for stably releasing a to-be-detected cable. The detection mechanism is used for detecting cable insulation performance and comprises a detection ring, a first driving device and an electric leakage detection device, and insulation defects are positioned by rotating the detection ring and acquiring electric leakage current signals; the repairing mechanism comprises a gluing mechanism and a drying box, the gluing mechanism is used for coating glue to the cable through the glue injection device and the gluing device after the damage point is detected, and the drying box accelerates repairing and solidifies the glue; and the cable take-up device is used for taking up the repaired cable. The automatic and cooperative work of all mechanisms in the whole device greatly improves the speed and quality of cable insulation performance detection and repair, avoids the problem of uneven repair or leak detection caused by misoperation or low efficiency in traditional manual operation, and remarkably improves the safety, reliability and construction efficiency before cable construction.

The invention relates to the technical field of mixing processing, and discloses a multi-thread processing method for intelligently optimizing working parameters of a mixer. Comprising the following steps: obtaining initial stirring time according to a proportional relation, mixing to-be-mixed materials according to the initial stirring time to obtain an initial mixture, obtaining particle characteristics according to a real-time surface image, and calculating a mixing influence degree value based on real-time detection data, inputting the proportional relation, the particle characteristics and the mixing influence degree value into a pre-constructed dose generation model to obtain an antistatic dose, and determining a mixing time interval and a mixing rotating speed interval according to the proportional relation and the antistatic dose, determining an optimal mixing time and an optimal mixing rotating speed based on the mixing time interval, the mixing rotating speed interval and an optimization algorithm; the combination of the mixing time and the mixing rotating speed after optimization can reduce the generation of static electricity to the greatest extent, thereby avoiding the agglomeration or non-uniformity of the mixture, and further improving the overall quality and consistency of the product.

The present invention relates to the technical field of rock and soil reinforcement, and in particular to a method for urease-induced calcium carbonate precipitation and solidification of sandy soil. The present invention crushes plant seeds containing urease to obtain urease-containing powder; mixes the urease-containing powder with sandy soil to obtain mixed sandy soil; injects a binder into the mixed sandy soil to form calcium carbonate to solidify the sandy soil; the binder is an aqueous solution containing urea and calcium ions. The method provided by the present invention can not only solve the problems of difficult extraction and storage of urease, but also increase the thickness of the solidified layer and improve the mechanical properties, and the method is simple and easy to implement, low cost and risk-free.

The invention relates to a wafer heater and a chemical vapor deposition system, which are used for solving the technical problem of non-uniform distribution of inert gas on the back surface of a wafer. The wafer heater comprises a heating part used for supporting a wafer and heating the wafer, the upper surface of the heating part is provided with a gas distribution channel, the gas distribution channel comprises a gas inlet and at least one first annular groove surrounding the gas inlet, at least one of the at least one first annular groove is provided with an annular wave line contour, and the gas inlet is communicated with the gas inlet; the plurality of first connecting grooves are radially connected between the air inlet and at least one first annular groove along the radial direction of the first annular groove; and the interface part is arranged at the bottom of the heating part, and the gas inlet is configured to be in fluid communication with an inert gas source through the interface part.

The invention relates to the technical field of cement-based anticorrosive materials, and particularly discloses a modified magnesium phosphate cement anticorrosive material as well as a use method and application thereof. The anticorrosive material comprises the following components in parts by weight: 100 parts of modified magnesium phosphate cement, 3-15 parts of a retarder, 1-10 parts of an epoxy resin glue solution, 0.5-5 parts of metakaolin and 15-20 parts of water. The modified magnesium phosphate cement comprises dead burned magnesium oxide and modified phosphate in a mass ratio of (1-4): 1. The modified phosphate is prepared from the following raw materials: nano aluminum oxide, sodium citrate and phosphate in a mass ratio of (0.5-1.5): (0.5-1.5): (20-25). The epoxy resin glue solution comprises uncured epoxy resin glue and a curing agent. The anti-corrosion material provided by the invention has the technical advantages of strong adhesive property and excellent anti-corrosion property, and can better provide protection for a steel structure serving in a marine environment.

The invention belongs to the technical field of lithium ion battery materials, and discloses a perovskite type titanate material as well as a preparation method and application thereof, the structural formula of the perovskite type titanate material is AxByTiOz, an A-site element is an alkali metal element, a B-site element is a Y element and / or a lanthanide element, 0 < x < = 1, 0 < y < = 1, and x + 3y + 4 = 2z. The perovskite type titanate material meeting the chemical general formula of AxByTiOz is designed, the obtained perovskite type titanate material AxByTiOz can be used as a lithium ion battery negative electrode material, compared with a lithium titanate negative electrode, the perovskite type titanate material AxByTiOz has high energy density brought by more ideal working potential, meanwhile, compared with a graphite carbon material, the perovskite type titanate material AxByTiOz has high lithium intercalation state thermal stability, and the performance of the perovskite type titanate material AxByTiOz is improved. And high safety and high energy density of the lithium ion battery can be considered at the same time.

The invention relates to the technical field of magnesium powder passivation, and particularly discloses a magnesium powder heating and passivating device which comprises a reaction cylinder, a heating mechanism and a spraying mechanism, a mounting cylinder is rotationally connected in the reaction cylinder, a plurality of material distributing plates are arranged on the mounting cylinder in the circumferential direction of the mounting cylinder, part of the material distributing plates extend to form stopping plates, and a driving assembly for driving the mounting cylinder to rotate is arranged on the reaction cylinder; a plurality of intercepting toothed plates are arranged on the mounting cylinder in the circumferential direction of the mounting cylinder, the intercepting toothed plates are rotationally connected with the mounting cylinder, and a force storage part is arranged at the rotating joint; a guide structure is arranged on the reaction cylinder, when the interception toothed plate is in contact with the guide structure, the guide structure drives the interception toothed plate to rotate to store force, and when the interception toothed plate is separated from the guide structure, the force storage piece drives the interception toothed plate to throw magnesium powder cakes to the material distribution plate. According to the magnesium powder heating and passivating device, magnesium powder can be divided into a plurality of parts, passivating agents are sprayed below the spraying mechanism, the magnesium powder can be caked, impacted and dispersed, and the mixing uniformity of the magnesium powder and the passivating agents is improved.

The invention discloses a welding device for chemical container barrel assembly production, and belongs to the technical field of welding equipment.The welding device comprises a welding box, an inner welding mechanism, an outer welding mechanism and two sets of positioning mechanisms are arranged in the welding box, and the two sets of positioning mechanisms are arranged on the two sides of the outer welding mechanism; the outer welding mechanism comprises a welding frame and an arc-shaped seat, a round hole is formed in the welding frame, and the arc-shaped seat is slidably connected into the round hole; the inner welding mechanism comprises a fixed frame, a movable frame and a mounting disc. The other side of the mounting disc and one side of the arc-shaped base are both connected with welding assemblies. The welding assembly comprises a fixing plate, a mounting plate and a welding gun. Automatic and synchronous welding work of the inner ring and the outer ring of the barrel can be achieved through the inner welding mechanism and the outer welding mechanism, the power and the cooling rate of the welding gun can be automatically adjusted through the linkage mechanism and the adjusting mechanism according to the moving line of the welding gun relative to a workpiece, and uniform and efficient welding work is guaranteed.

The utility model relates to the technical field of fermentation tanks, and discloses a fermentation tank convenient to maintain, which comprises a tank body, a top cover, a driving device and a rod body, the outer side of the rod body is connected with a connecting rod, the outer end of the connecting rod is provided with a cleaning plate, the outer part of the connecting rod is connected with a sealing sleeve, and the outer side of the rod body is connected with stirring blades. According to the fermentation tank convenient to maintain, the side face of the stirring rod in the fermentation tank is connected with the scraping plate, the effect of scraping the inner wall of the tank body can be achieved through the scraping plate when the stirring rod rotates, the problem of uneven mixing caused by the fact that materials adhere to the inner wall is avoided, meanwhile, the stirring range can be enlarged by arranging the wave-shaped stirring blades, and the stirring effect is improved. The full mixing and fermentation of the materials are facilitated, and the later cleaning and maintenance of the fermentation tank are also facilitated.

The invention relates to the technical field of sand core dip-coating, in particular to a sand core dip-coating detection method and system. The dip-coating detection method comprises the following steps: dip-coating a sand core, and moving the dip-coated sand core to a detection station; acquiring a sand core image, acquiring a marking initial position matched with the sand core according to the sand core image, and moving the detection head to the marking initial position; the detection head moves from one side of the sand core to the other side of the sand core along a straight line, so that the reference plate and the scribing plate perform scribing on the sand core coating; and obtaining a sand core image after scribing, obtaining the number of scribed lines on the coating according to the sand core image, judging whether the number of the scribed lines is equal to a set number or not, and further detecting whether the wet thickness of the coating meets the requirement or not. Wet state thickness detection is carried out after the sand core is dip-coated and before the sand core is dried, so that the timeliness is improved, and the problem of casting scrapping caused by the delay of detection after drying is avoided.

The invention discloses a low-light image enhancement method, system and device, and a storage medium, relates to the technical field of computer vision, and solves the problems of non-uniform illumination distribution and difficult denoising in an image restoration process in an existing illumination mapping technology. Respectively obtaining a low-frequency image of the low-illumination image and a high-frequency image of the low-illumination image based on the low-illumination image; obtaining a low-frequency image of the enhanced low-illumination image based on the low-frequency image of the low-illumination image; obtaining a high-frequency image of the enhanced low-illumination image based on the high-frequency image of the low-illumination image; obtaining an enhanced image based on the low-frequency image of the enhanced low-illumination image and the high-frequency image of the low-illumination image; designing a loss function based on the enhanced image, and training a frequency decomposition network model, a low-frequency path illumination adjustment network model and a high-frequency path illumination adjustment network model; and performing the operation on the low-illumination image to obtain a final enhanced image.

The invention relates to the technical field of heat insulation materials, in particular to a ceramic aerogel coating and a preparation method thereof.The ceramic aerogel coating comprises a ceramic anti-corrosion bottom layer, a middle coating and a transparent surface layer, and the preparation method of the ceramic aerogel coating comprises the steps that firstly, sand blasting treatment is conducted on a metal base material; step II, spraying a ceramic anti-corrosion primer, and drying; iII, preparing a floating coat base material; iV, spraying a floating coat base material, and sealing and baking; v, spraying a floating coat fabric, and sealing and baking; step VI, polishing the coating; step VII, spraying transparent finish paint after polishing, and sealing and drying; and step VIII, after unified inspection is completed, finish paint is sprayed, sealing baking is conducted for thorough drying, and then the ceramic aerogel coating is obtained, the prepared ceramic aerogel coating is good in adhesiveness, excellent in acid and alkali resistance, not prone to cracking and peeling, capable of protecting metal for a long time, low in heat conductivity coefficient and high in hardness, and the problems that an existing aerogel coating is high in brittleness, weather resistance and hardness and not prone to cracking and peeling are solved. And the mechanical performance is low.

The invention discloses an anesthetic gas uniform mixing and anesthetic gas concentration detection device, and relates to the technical field of medical apparatus and instruments. The anesthetic gas concentration detection device comprises a device main body, one side of the device main body is connected with a concentration detection equipment main body through a pipeline, a detection module for detecting the concentration of anesthetic gas is arranged in the concentration detection equipment main body, and a gas mixing device is arranged in the device main body; the gas mixing device comprises a first L-shaped gas pipe, a second L-shaped gas pipe, a T-shaped pipe, a rotating rod and two through hole cylinders. Through the arrangement of the gas mixing device, anesthetic gas and air are rotationally sprayed into the T-shaped pipe through the two through hole cylinders, turbulent flow or airflow disturbance can be generated in the T-shaped pipe, mixing of the gas is facilitated through the disturbance, the anesthetic gas and the air are mixed more evenly, and the anesthetic effect is improved. Therefore, the concentration of the anesthetic gas can be conveniently detected by the concentration detection equipment body in the follow-up process.

The invention relates to an efficient heat exchanger for petrochemical engineering, and relates to the technical field of heat exchangers. The device comprises a heat exchange shell, a corrosion inhibition box fixed to the heat exchange shell, a plurality of heat exchange pipes and two baffle plates which are rotationally arranged on the heat exchange shell, a processing mechanism for conducting scraping, brushing, fracture detection and marking on the heat exchange pipes correspondingly, and a rotating assembly for conducting rotating driving on the heat exchange pipes. The translation assembly is used for carrying out translation driving on the two baffle plates; the test assembly is used for carrying out deformation detection on the inner wall of the heat exchange shell; the corrosion inhibition box is used for storing a corrosion inhibitor, and a control assembly used for controlling the release amount of the corrosion inhibitor is arranged on the heat exchange shell. The purpose of heat exchange between the petroleum raw material and the heat medium can be achieved, the petroleum raw material can be guided to be evenly distributed in the tube pass, the phenomenon that the petroleum raw material forms laminar flow or uneven flow in the tube pass is avoided, heat stress caused by uneven heating of the heat exchange tube is prevented, and deformation and cracking of the heat exchange tube due to the heat stress are prevented.

The invention discloses a graded weighing type movable flow-state solidified soil mixer truck, and belongs to the technical field of flow-state solidified soil mixers.The graded weighing type movable flow-state solidified soil mixer truck comprises a mixer truck body, a speed reducer is arranged on the side, facing a truck head, of a mixing box body, and a second supporting frame is arranged below the speed reducer and located on the top face of an L-shaped chassis; the speed reducer is connected with a stirring shaft in an inner cavity of the stirring box through a motor, a first supporting frame is arranged on the side, back on to the vehicle head, of the stirring box and located on the top face of the L-shaped chassis, a front end buffering assembly is arranged between a second supporting frame and a longitudinal vertical plate of the L-shaped chassis, and a tail end buffering assembly is arranged between the first supporting frame and the top face of the tail end of the L-shaped chassis. A first hydraulic damper is connected between the first supporting frame and the stirring box body, and when the stirring vehicle body moves forwards or backwards, raw materials in an inner cavity of the stirring box body tend to be in a stable state under multiple buffering and damping of the front end buffering assembly, the tail end buffering assembly and the first hydraulic damper, so that the stirring box body is buffered and damped.

The invention discloses a multi-cluster interlayer / in-fracture temporary plugging diversion fracturing process and a product preparation method, and particularly relates to the technical field of petroleum and natural gas exploitation, the fracturing process comprises the steps of dividing fracturing sections according to the physical property of a horizontal section reservoir of a coal-bed gas well, monitoring and automatically adjusting parameters during drifting, injecting prepad fluid to form a main fracture, and injecting sand adding fluid in a stepped mode. Preparing and injecting a temporary plugging material, injecting prepad fluid again to form a new crack, injecting sand-adding fluid into the new crack, replacing the sand-carrying fluid with clear water after fracturing, discharging the fluid and monitoring. The preparation method of the temporary plugging material comprises the steps of raw material mixing, extrusion granulation, drying, secondary extrusion granulation and the like, and the performance of the temporary plugging material is ensured through the measures of a specially designed screw structure, accurate control of temperature and humidity, addition of an auxiliary agent and the like. According to the method, the longitudinal crack coverage rate and the oil and gas recovery rate are increased, accurate control is achieved, the formation damage rate and the accident rate are reduced, it is ensured that the quality of the temporary plugging material is stable, and the formation permeability recovery rate is increased.

The invention discloses an enzyme-assisted pine needle flavone extraction device, which comprises an enzyme supply assembly for putting an enzyme solution into an extraction tank body, and a feeding pipe for putting pine needle powder is fixedly inserted into the extraction tank body. A dispersing mechanism for dispersing pine needle powder introduced by the feeding pipe to different height positions is arranged in the extraction tank body, and a driving motor for enabling the pine needle powder fed at the different height positions to be distributed in a circumferential dispersing manner when the dispersing mechanism is driven to rotate is mounted at the top of the extraction tank body; the dispersing mechanism comprises a middle shaft rod in transmission connection with the driving motor and a guide assembly fixedly arranged on the outer surface of the middle shaft rod in a sleeving mode, and a cavity is formed in the middle shaft rod. According to the invention, multi-depth-level all-directional feeding can be realized, the dispersity is improved, single-point accumulation and floating phenomena are reduced, the flowing and mixing of extract liquor are facilitated, and the extraction is more uniform and thorough.

The invention discloses a high-speed adhesive film tape casting forming machine which comprises an extrusion die, a first cooling roller, a second cooling roller and a third cooling roller and further comprises a conveying belt support fixed to a roller support, and a first tensioning roller and a second tensioning roller are rotationally supported on the conveying belt support. A conveying belt deviation rectifying device is further installed on the conveying belt support. A rubber film conveying belt is wound on the tensioning roller I, the tensioning roller II, the cooling roller III, the cooling roller II, the cooling roller I and the conveying belt deviation rectifying device; a glue film temperature control device is mounted on the conveying belt bracket, and the glue film conveying belt penetrates through the glue film temperature control device; the adhesive film temperature control device comprises a temperature control box body installed on the conveying belt support, two air uniformizing pore plates are fixedly installed in the temperature control box body, and the adhesive film conveying belt penetrates through the space between the two air uniformizing pore plates which are parallel to each other and spaced. The high-speed casting forming machine not only can effectively improve the production efficiency of the casting film, but also can ensure the stability of the production quality of the casting film.

The invention provides a method for crushing zero-valent iron. The method comprises the following steps: adding FeS, FeS2, zero-valent iron powder and absolute ethyl alcohol into a container, and uniformly stirring to form slurry to be ground; the wet ball mill is filled with grinding beads, the slurry to be ground is added into the wet ball mill to be ground, slurry is obtained, and the grinding time is 10-640 min; taking out the slurry from the wet ball mill, putting the slurry into magnetic separation equipment for separation, collecting ground zero-valent iron particles, and washing with absolute ethyl alcohol; and the washed zero-valent iron particles are placed in a vacuum drying box and dried at the temperature lower than 40 DEG C.

According to the negative electrode plate provided by the invention, the pure silicon particles are used as the negative electrode active material, and the thickness of the coating layer of the negative electrode plate is controlled by controlling the mass ratio of the pure silicon particles in the negative electrode silicon-based active material and adjusting the surface density and the compaction density of the negative electrode plate, so that the energy density and the conductivity of the negative electrode plate are improved. The invention also provides a preparation method of the negative pole piece, and the preparation of the negative pole piece is realized by preferably selecting the conductive agent and the binder and controlling the viscosity and the solid content of the slurry. The invention also provides a cylindrical battery, by adopting the negative pole piece, the preparation of various types of high-energy density cylindrical batteries can be realized by changing the width and length of the positive and negative pole pieces, and meanwhile, the battery also has excellent rate capability.

The invention discloses a logistics warehouse management system based on big data, and belongs to the technical field of logistics management. The method is used for solving the technical problems that the warehousing states of different warehousing positions cannot be supervised and analyzed according to each batch of logistics warehousing and data expansion and utilization of different dimensions cannot be implemented in the existing scheme. The warehousing states of different warehousing positions are supervised and analyzed according to each batch of logistics warehousing storage, so that periodic local warehousing state supervision can be implemented on different warehousing positions in a logistics warehouse; reliable local data support can be provided for subsequent adjustment management analysis of different storage positions and overall saturation condition analysis of the logistics warehouse; according to the method, the periodic local storage state supervision results of different storage positions in the early stage are expanded and utilized, and reliable data support can be provided for subsequent dynamic management prompts of different storage positions while the overall filling stability conditions of the different storage positions can be analyzed and classified.

The utility model discloses a waste gas spraying device for petroleum production, which relates to the technical field of waste gas treatment equipment and comprises a spraying tower body, a gas inlet pipe is mounted on the side surface of the spraying tower body, an exhaust pipe is mounted at the top of the spraying tower body, and a spraying component is mounted in the spraying tower body; the spraying assembly comprises an installation frame rotationally connected to the inner wall of the spraying tower body, a spraying head is installed at the bottom of the installation frame, a rack is installed on the installation frame, a connecting rod is inserted into the inner wall of the spraying tower body in a penetrating mode and rotationally connected with the spraying tower body, a gear meshed with the rack is installed at one end of the connecting rod, and the other end of the connecting rod is connected with the spraying tower body. A motor for driving the connecting rod to rotate is mounted on the outer wall of the spray tower body, the mounting frame rotates in the spray tower body, and the mounting frame can drive the positions of the multiple spray heads to change in the horizontal rotating process, so that the problem of non-uniform spraying or incomplete coverage in the water spraying process can be avoided.

The invention relates to the technical field of floating slab ballast beds, in particular to a novel floating slab ballast bed shock absorber which comprises a shock absorber body, the shock absorber body comprises an upper cover plate and a cylinder, a telescopic sleeve is fixedly connected between the upper cover plate and the cylinder, and the cylinder is filled with a damping agent. The bottom of the upper cover plate is connected with a U-shaped permanent magnet through a connecting assembly, an electromagnet is fixedly installed at the bottom of the inner wall of the barrel, an adjusting assembly is arranged in the barrel, the bottom of the U-shaped permanent magnet is fixedly connected with a plurality of damping rods, and conical spiral blades are arranged on the outer walls of the damping rods respectively. The electromagnet is used for generating repulsive force on the U-shaped permanent magnet, vibration of the upper cover plate is further reduced, the magnetic field intensity of the upper cover plate is changed by adjusting the current intensity, so that the repulsive force is adjusted, the more downward the threaded blade is, the larger the contact area with the damping agent is, the interaction between the threaded blade and the damping agent is enhanced, and the damping effect is improved. And the absorption efficiency of vibration energy is improved.

The invention belongs to the technical field of polyester production, and relates to a production method of polyester FDYs (fully drawn yarns), which comprises the following steps of: interlacing tows between a second hot box and a winding roller by using an interlacing device in a spinning process, and applying friction force to the tows between the second hot box and the interlacing device by using a tensioning yarn guide rod so as to counteract part of tension borne by the tows; and thus, the network pressure during network addition is reduced. On the premise that the product quality is guaranteed, the network air pressure and the air consumption in the production process of the polyester FDY are reduced during network adding.

The present invention discloses a grinding device for processing a brake disc, which relates to the technical field of brake disc processing, and comprises a box body and a brake disc body. A placing table is rotatably installed on the top of the box body, and the brake disc body is installed on the top of the placing table. A fixed frame is fixedly installed on one side of the box body, and a mobile frame is arranged on the fixed frame. A first cross bar is arranged on one side of the mobile frame, and a grinding component for grinding the upper and lower surfaces of the brake disc body is arranged on the first cross bar. The grinding device for processing a brake disc realizes reciprocating and uniform grinding of the brake disc body by a surface grinding piece through a series of mechanical linkage structures driven by a driving motor. This mechanized grinding method is more accurate and stable than manual operation, and effectively improves the grinding efficiency and quality.