88results about How to "Protect the environment" patented technology

The invention relates to the technical field of heat exchangers, in particular to a plate heat exchanger cleaning system, a plate heat exchanger and a cleaning method. The fluid monitoring devices are installed at an inlet and an outlet of the plate heat exchanger respectively, connected with the control device and used for monitoring fluid data of the inlet and the outlet of the plate heat exchanger and transmitting the data to the control device. The high-pressure cleaning device is arranged between plate channels of the plate heat exchanger, is connected with the control device and is used for acquiring an instruction of the control device and cleaning the plate channels of the plate heat exchanger; the control device is used for receiving the fluid data of the fluid monitoring device and generating a cleaning instruction to the high-pressure cleaning device. Real-time monitoring and a response mechanism are combined, the fluid monitoring device, the high-pressure cleaning device and the control device are combined for control, the self-cleaning function of the plate heat exchanger is achieved, and the problems that an existing plate heat exchanger is difficult to clean and low in efficiency are solved.

The invention relates to a paper substrate bio-based high-barrier Pickering emulsion coating and a preparation method and application thereof, and belongs to the technical field of paper coatings, the prepared coating has excellent waterproof and oil-proof performance and is suitable for surface coating of substrates such as paper, the emulsion is prepared by taking glycerol as a plasticizer and chitosan as an oil-proof agent, and the emulsion is prepared by taking the chitosan as an oil-proof agent. The cellulose nanocrystal is used as an emulsifier, and the alkyl ketene dimer AKD and palm wax are used as an oil phase. After the emulsion is coated on the surface of paper, a high-barrier coating with a core-shell structure is formed, and the core-shell structure is clear through electron microscope observation; the hydrophobic angle of the coating can reach 130 degrees to the maximum, and the coating shows remarkable hydrophobicity and oil resistance. The coating is composed of bio-based materials, has the advantages of environmental protection and sustainability, is suitable for application requirements of degradable and green packaging, is simple in preparation process and excellent in performance, and can provide efficient barrier performance for paper packaging materials.

The invention provides an efficient chemical polishing device capable of recycling polishing liquid and a process of the efficient chemical polishing device, and relates to the technical field of aluminum profile machining, the efficient chemical polishing device comprises a stabilizing frame, a switching mechanism and two symmetrically-distributed positioning shells are installed on the upper portion of the stabilizing frame, and the switching mechanism is jointly composed of a first electric motor and a conveying plate; and two sets of symmetrically-distributed conveying mechanisms are installed above the conveying plate, and each conveying mechanism is jointly composed of a second electric motor, a threaded rod, a conveying shell, a supporting shell and an extrusion strip. Rapid switching of the positions of the two working belts is achieved through the switching mechanism, after one set of working belts are polished, the other set of working belts to be polished can be rapidly moved to the working position, the idle time and the adjusting time of equipment are shortened, the continuous production process is optimized, and the production efficiency is improved. And tedious operation and long-time shutdown of traditional equipment during replacement of a machining object are avoided, efficient and smooth operation in the production process is ensured, and the comprehensive production efficiency of the equipment is further improved.

The invention discloses a water environment treatment material based on composite minerals and aquatic plants and a preparation method and application thereof, and belongs to the technical field of water environment treatment. The water environment treatment material comprises the composite minerals and the aquatic plants, the composite minerals can adsorb and convert heavy metal ions, ammonia nitrogen and organic pollutants, and by combining the absorption of the aquatic plants on nutrient substances and the decomposition effect of microorganisms on the pollutants, the concentration of the pollutants in a water body can be remarkably reduced, and the water quality index is improved; the problems of water eutrophication, heavy metal pollution, organic pollution and the like are effectively solved; the photosynthesis of the aquatic plants can absorb a large amount of carbon dioxide, carbon elements are transferred into the bottom mud for long-term storage, meanwhile, the existence of the complex minerals indirectly promotes the carbon sequestration effect of the aquatic plants, the carbon sequestration capacity of the whole water body ecological system is improved, and finally the multiple purposes of water body pollution treatment, bottom mud remediation, carbon sequestration and sink increase and the like are achieved. The health and the stability of a water body ecological system are improved.

The invention relates to an antibiotic-free feed additive for breeding crucian carps and a preparation method of the antibiotic-free feed additive, and belongs to the technical field of feed additives. According to the feed additive, seaweeds and Chinese herbal medicines are used as raw materials and are subjected to staged fermentation with compound probiotics, a phagostimulant is added, and freeze drying is performed to prepare the antibiotic-free crucian breeding feed additive, so that the prevalence rate of crucian can be reduced, the survival rate can be increased, and the growth of crucian can be accelerated; the problem of drug resistance caused by antibiotic abuse in crucian breeding in the prior art can be solved, and unification of high antibacterial activity, biological safety and environmental friendliness in crucian breeding is achieved.

The invention discloses waste water recycling equipment for corrugated board production, and relates to the technical field of waste water treatment.The waste water recycling equipment comprises a settling box, a water outlet pipe is fixedly connected to one side of the settling box, a water inlet pipe is fixedly connected to the side, away from the water outlet pipe, of the settling box, and sliding grooves are symmetrically formed in the upper end face of the settling box; the liquid collecting box can be driven to move intermittently and equidistantly on the upper end face of the settling box, a flocculating agent in the liquid collecting box is uniformly sprayed on wastewater in the settling box, the flocculating agent can be uniformly sprayed to all corners of the settling box, and the problem that the local concentration is too high or too low due to direct feeding through a traditional single inlet is solved; the uniform distribution enables the flocculation reaction in the wastewater to be more consistent, and the obvious difference of flocculation effects among different areas is reduced, so that floating matters and suspended matters in the wastewater are more effectively removed, the overall efficiency of wastewater treatment is improved, the quality of the treated wastewater is improved, and the wastewater is more in line with environmental protection standards and subsequent treatment requirements.

This application discloses an ethylene oxide gas sensor and its method, which achieves self-diagnosis through electrochemical impedance spectroscopy, applies minute AC perturbations to collect data and extract aging feature vectors, and then dynamically determines the compensation factor, overcoming the limitations of traditional static calibration. In this way, the sensor can identify aging in real time and accurately compensate for the original signal, ensuring long-term accuracy and reliability of ethylene oxide concentration measurement throughout its entire life cycle, thus providing a solid guarantee for industrial safety and environmental protection.

This invention belongs to the field of headphone technology, and specifically relates to a quick-release structure for a headphone battery with elastic contact. It includes: a sound-generating unit with a mounting groove containing a receiver, and at least two inductive elements; and a battery unit with a conductive plate located inside the battery unit. By placing the conductive plate inside the battery unit, leakage caused by contact between the battery electrodes and the external environment is prevented. When the battery unit needs to be placed on the sound-generating unit, the receiver contacts the conductive plate, thereby establishing circuit continuity. This allows for easy assembly and disassembly of the battery unit and the headphone's sound-generating unit. During assembly, simply placing the battery unit on the sound-generating unit allows for automatic alignment and circuit connection through physical contact, eliminating the need for soldering, ribbon cables, or connectors, significantly reducing the difficulty and cost of automated assembly.

The utility model discloses a dust removal system with double dust removers, which belongs to the technical field of steel production and comprises a first dust remover and a second dust remover, inlet ends of the first dust remover and the second dust remover are communicated through a main pipeline, and a first dust removal pipeline is arranged on the main pipeline close to the side of the first dust remover in a communicated mode. The main pipeline close to the side of the second dust remover is communicated with a second dust removal pipeline, the dust removal end of the first dust removal pipeline is communicated to the first dust removal point, and the dust removal end of the second dust removal pipeline is communicated to the second dust removal point; a first change-over valve is arranged on the main pipeline between the first dust removal pipeline and the first dust remover, a second change-over valve is arranged on the main pipeline between the first dust removal pipeline and the second dust removal pipeline, and a third change-over valve is arranged on the main pipeline between the second dust removal pipeline and the second dust remover. According to the utility model, the dependence mode of the traditional single dust remover is broken through, and the environmental accident risk caused by fault, maintenance or shutdown of the single dust remover is effectively solved.

This invention discloses a cashew nut shell bisphenol and its preparation method and application. The preparation method of the bisphenol is as follows: First, cashew nut shell phenol, formaldehyde, and an alkaline catalyst are mixed and stirred evenly, and reacted at a certain temperature to obtain hydroxymethylated product A; product A is washed with water several times until the pH is neutral, and then centrifuged to remove water to obtain product B; product B is mixed with phenol and an acidic catalyst and stirred evenly, and reacted at a certain temperature to obtain product C after the phenol-alcohol reaction; product C is washed with water until neutral, and then distilled under reduced pressure to obtain the cashew nut shell bisphenol product. This invention utilizes the structural characteristics of cashew nut shell phenol, which has both a benzene ring and an alkane chain, to obtain a bisphenol structure that combines the rigidity of the benzene ring with the toughness of the long alkane chain on cashew nut shell phenol, while protecting the highly reactive phenolic hydroxyl group. Moreover, this bisphenol is green and low in toxicity, meeting the requirements of environmental protection and sustainable development. The epoxy coating prepared using this bisphenol has high crosslinking density, good corrosion resistance, and excellent mechanical properties.

The application provides a copper-aluminum dissimilar metal resistance brazing method for a wind power generator, comprising the following steps: S1, temperature field regulation of partition resistance heating: a partition resistance heating mode of double-electrode independent power supply is adopted, current is respectively input to the copper side and the aluminum side for independent control, and the brazing interface temperature is controlled in the range of 580-620 DEG C; S2, interface diffusion control of nano nickel barrier layer: a nano-crystalline nickel barrier layer is prepared in advance on the surface of the copper matrix to be connected; S3, wetting and filling of zinc-based composite filler material: zinc-based composite filler material is used for brazing; S4, pressure-assisted brazing seam densification: axial pressure in the range of 0.5-2 MPa is applied during brazing; S5, atmosphere protection and surface activation: the brazing process is carried out under the condition of inert protective atmosphere. Through the cooperation of partition heating and nano nickel barrier layer, the strength of the copper-aluminum brazed joint is improved to more than 80% of the base material, and the contact resistance is reduced to 3 mu omega cm 2 The energy consumption of the single piece is reduced by 80%, and the qualified rate reaches more than 95%.

The light-weight aluminum alloy profile machining cooling device comprises a water storage base, a cooling chamber is fixedly installed on one side of the top of the water storage base, an inlet and outlet is formed in one side of the cooling chamber, a material containing box is arranged on one side of the cooling chamber, and a baffle is fixedly connected to one side of the material containing box; a water outlet groove is formed in the bottom of the material containing box. According to the light-weight aluminum alloy profile machining cooling device, through the design of the cooling chamber, the storage box, the baffle, the motor, the screw, the nut plate, the driving wheel, the driven wheel and the belt, the motor drives the driving wheel to rotate, and the belt drives the driven wheel and the screw to rotate synchronously; the nut plate, the baffle connected with the nut plate and the material containing box are pushed to stably enter and exit from the cooling chamber according to the threaded connection principle, manual carrying is not needed, manpower is saved, operation convenience is guaranteed, the stability and safety of sectional materials in the cooling process are guaranteed, and sectional material damage or safety accidents caused by misoperation or equipment failures are avoided.

The invention belongs to the field of galvanometer laser welding, and particularly relates to double-head quasi-synchronous laser welding equipment which comprises a rack and a displacement mechanism mounted at the top, and the displacement mechanism is used for adjusting different positions to weld workpieces; the welding mechanism is mounted on the displacement mechanism and is used for welding the workpiece; the first treatment mechanism is installed on the welding mechanism and used for blocking chippings generated during welding and meanwhile conducting cooling treatment on the edge and the front face of the galvanometer body; through air seal protection and rotary heat dissipation of the first processing mechanism, welding scraps and dust are intercepted, accumulated heat on the outer edge of the galvanometer body is rapidly guided out, and impurity attachment and lens thermal deformation are avoided; and the second treatment mechanism realizes removal of harmful substances and impact type cooling of the bottom surface of the galvanometer through purification, refrigeration and recovery of hot flue gas in a closed loop, so that the environment-friendly working environment is guaranteed, a heat dissipation system is formed by the second treatment mechanism and the first treatment mechanism, the thermal lens effect is effectively inhibited, and the service cycle of the galvanometer and core components is remarkably prolonged.

The invention provides an underground engineering thermal infrared characteristic suppression method based on thermal insulation and temperature control. The underground engineering thermal infrared characteristic inhibition method comprises the following steps that S1, a flue gas emission model used for an underground engineering target area is constructed, the flue gas emission model comprises a flue, and a thermal insulation layer and a rock-soil layer are sequentially arranged outside the flue; s2, acquiring parameters of a heat insulation layer through conjugate heat transfer analogue simulation, and enabling the temperature difference between an outlet of the flue and a surrounding rock-soil layer to be not greater than 2K; and S3, a temperature control system is arranged on the outer side of the heat insulation layer, the temperature of the flue is adjusted through the temperature control system, and the temperature difference between an outlet of the flue and the surrounding rock-soil layer is controlled to be not larger than 2K. The underground engineering thermal infrared characteristic inhibition method can well meet specific thermal insulation and temperature control requirements under different environment conditions, the underground engineering thermal infrared characteristic inhibition capability is remarkably improved, intelligent temperature control and dynamic adjustment are achieved, and good economic benefits and social benefits are achieved.

The invention discloses an optical fiber coloring ultraviolet curing monitoring and correcting system and method for a communication optical cable. The system comprises an optical fiber to be colored and cured; a mirror; a photoelectrochemical ultraviolet detection module; the wavelength detection module is used for realizing ultraviolet wavelength detection; the ultraviolet curing module is used for realizing 360-degree omnibearing curing of the optical fiber; the optical power calculation module is connected with the photoelectrochemical ultraviolet detection module and is used for processing the electric signal output by the photoelectrochemical ultraviolet detection module and giving out the output power of the ultraviolet light; and the signal feedback module is used for judging whether the power and the wavelength of the received ultraviolet light meet curing requirements or not and making corresponding feedback. According to the invention, the output power and wavelength of the ultraviolet light can be conveniently monitored, when the power of the ultraviolet light is insufficient, additional compensation of the ultraviolet light is added, correction can be carried out at the first time, and the waste of time, personnel and cost in the process of stopping production to adjust the power of the ultraviolet lamp of the host due to insufficient power is solved.

The utility model discloses a cathode structure of a semiconductor coating device, which belongs to the technical field of semiconductor coating and comprises a shell, a fixing block is arranged on the inner wall of the shell, a rear stand column is fixedly connected to the left side face of the fixing block, a hinge rod is arranged on the inner side of the rear stand column, and a front stand column is arranged on one side, away from the rear stand column, of the hinge rod. In the aspects of mechanical structure stability and flexibility, the rear stand column and the front stand column are arranged to serve as supporting parts, the fixing blocks are connected with the inner wall of the shell, a stable foundation is provided for the whole shielding and protecting structure, and shaking and displacement during working are prevented; the shielding baffle can be flexibly unfolded and contracted like a folding door, the shielding range is adjusted according to needs, and the hinge rod is unfolded in the non-working state to protect the cathode body and the target material body.

A highly efficient and environmentally friendly liquid metal degreasing agent and its preparation method are disclosed, belonging to the field of metal surface treatment technology. This degreasing agent is composed of a pH adjuster (a mixture of aminosulfonic acid and citric acid), a composite surfactant (a mixture of nonionic and anionic surfactants), a phosphorus-free chelating agent, a composite corrosion inhibitor, a defoamer, a detergent builder, and deionized water in specific weight proportions. The preparation method involves sequentially dissolving and mixing each component. This invention achieves highly efficient synergistic degreasing and rust removal under weakly acidic conditions. At room temperature, it provides excellent cleaning and corrosion protection for various metal substrates such as steel, aluminum alloys, and galvanized sheets. It is free of strong acids, phosphates, and heavy metals, making it environmentally friendly, safe, low-foaming, and stable. It is particularly suitable for automated spray production lines, comprehensively solving the problem of simultaneously achieving effective cleaning, substrate protection, and environmental protection requirements in existing technologies.

This utility model discloses a waste treatment device for isothiazolinone production, relating to the field of isothiazolinone production technology. The waste tank is connected to a first filter, the first filter is connected to a settling tank, the settling tank is connected to a distillation tank, the distillation tank is connected to a degradation tank, the degradation tank is connected to a sedimentation tank, the sedimentation tank is connected to a second filter, the second filter is connected to a nanofiltration membrane device, and the nanofiltration membrane device is connected to a treatment water tank. This device can effectively remove harmful substances from the isothiazolinone production waste, achieving harmless treatment of the waste and also realizing resource recycling to a certain extent, thus possessing good environmental and economic benefits.

The invention discloses a construction method for integration of an anti-static floor and a cable support of a secondary equipment room of a transformer substation, and relates to the field of transformer substation constructional engineering and electrical installation. Traditional construction has the problems of long construction period, different quality, poor operation environment and inconvenience in later debugging. The method comprises the following steps: measuring and typesetting on site, and setting an elevation control line and a division positioning line in an elastic manner; cleaning the terrace and laying a grounding cable led out from the main grounding grid in advance; the cable support is positioned and assembled according to the grid division positioning lines, the cable support is reliably connected with the grounding cable, and a groove box cross arm of the cable support is used for bearing the cable; and after the cable is laid, an anti-static floor is installed at the top of the cable support, and edge closing treatment is carried out. According to the method, on-site efficient assembly is achieved through the standardized and modularized construction process, the construction period is shortened, the quality is improved, and the operation and debugging environment is optimized.

The present invention belongs to the technical field of underwater light sources, and relates to an adaptive wide-spectrum underwater light source system. An adaptive wide-spectrum underwater light source system comprises an FPGA unit, a sensor unit, an illumination matrix and a camera; the FPGA unit analyzes the image data captured by the camera and the environmental data acquired by the sensor unit in real time through a light source adjustment algorithm, and adjusts the brightness, color temperature and spectral output of the illumination matrix to optimize the image quality under different water quality and water depth conditions; wherein the light source adjustment algorithm adjusts the R\G\B light intensity output weight by calculating the color difference between the standard color card and the real-time image; and outputs the final PWM signal through a PID controller to adjust the illumination matrix. The system of the present invention combines advanced image processing technology and environmental monitoring technology, and adjusts the illumination in real time through an integrated control unit to optimize the image quality of underwater photography.

The invention relates to the field of refractory materials, in particular to a low-temperature wear-resistant castable prepared from waste high-voltage electric porcelain and a preparation method of the low-temperature wear-resistant castable. The low-temperature wear-resistant castable prepared from the waste high-voltage electric porcelain comprises the following raw material components in percentage by weight: 50-54% of waste high-voltage electric porcelain aggregate, 10-15% of quartz sand, 10-16% of a binding agent, 3-5% of activated aluminum oxide micro powder, 3-5% of silicon micro powder, 4-7% of brown fused alumina powder and 3-5% of quartz powder. According to the invention, the design concepts of a high-temperature refractory material and low-temperature ultra-high performance concrete (UHPC) are integrated, the closest packing principle is adopted, solid waste high-voltage electric porcelain waste is used as aggregate particles, a reinforced matrix is formed, and a combination system is optimized; the low-temperature wear-resistant environment-friendly castable which achieves good integrity and use effect by means of self-combination of materials in a low-temperature environment (less than or equal to 300 DEG C) is prepared.

This invention belongs to the field of marine engineering antifouling material technology and artificial intelligence optimization technology. It discloses a collaborative optimization method for the antifouling stability and safety of antifouling materials used in debris-blocking nets, comprising the following steps: Step 1, collecting multi-dimensional data and preparing samples of the antifouling materials for the debris-blocking nets; Step 2, constructing and training an AI prediction model: selecting key feature parameters from the multi-dimensional data, using these key feature parameters as core feature vectors to construct a dual-objective prediction model, which outputs predicted values ​​for the material's antifouling stability index and environmental safety index; Step 3, collaborative optimization under multiple constraints: setting multiple constraints for the material; using the hybrid meta-heuristic algorithm ALO-KHO to solve the multi-objective optimization problem; selecting the optimal solution from the Pareto optimal solution to obtain the parameter combination of the antifouling materials for the debris-blocking nets with the highest score. The prediction model of this invention has high accuracy, strong generalization ability, and significant multi-objective collaborative optimization effect.

The utility model relates to the technical field of hair driers, in particular to a hand-free hair drying hair drier which comprises a shell, the shell is composed of an arc-shaped section and two lap joint sections, the interior of the shell is of a cavity structure, the ends of the two lap joint sections are arranged to be planes, and sinking spaces are formed in the bottoms of the two lap joint sections. A plurality of air holes are formed in the top surface, the bottom surface and the outer arc surface of the arc-shaped section respectively; the device can be used without hand holding, so that people with handicapped or injured hands, old people and users pursuing convenient life can blow-dry hair without hand operation, the use convenience is greatly improved, the hair is effectively protected from heat injury by adopting a medium and low temperature mode, and the use is convenient. And meanwhile, low-noise use experience is achieved through the design of medium-low wind speed, the environment-friendly and healthy living trend is met, and fatigue caused by long-time holding is avoided without hand holding.

The present invention belongs to the field of materials, and relates to a porous material rich in nitrogen, oxygen, and fluorine heteroatoms, and a preparation method and application thereof. The preparation method comprises the following steps: using dichloromethane as a solvent, polystyrene as an organic template, potassium carbonate as an inorganic template, adding anhydrous sodium sulfate, cyanuric chloride, and bisphenol AF, heating and polycondensing, performing two Soxhlet extractions to remove polystyrene, cyanuric chloride, and bisphenol AF respectively, and vacuum drying to obtain a porous material rich in nitrogen, oxygen, and fluorine heteroatoms. The porous material is used to adsorb lithium ions in waste liquid recovered from power batteries, reduce the cost of lithium ion recovery, and achieve the goal of turning waste into treasure and reducing pollution emissions.

The invention discloses a baseball leather treatment process. The baseball leather treatment process comprises the following steps: S1, soaking and fleshing; s2, unhairing expansion and re-liming; s3, decolorizing and bleaching; s4, pickling treatment; s5, carrying out chrome-free tanning, taking out of a drum and squeezing water; s6, slicing and peeling, rinsing and neutralizing; s7, fat liquoring and retanning; and S8, vacuum milling. According to the method, the defects in the prior art are overcome, two-step shaping is adopted in the chrome-free tanning step and the drum-out wringing step, the leather treated according to the scheme is in a half-cooked state instead of being treated to be in a full-cooked state, and the baseball made of the leather can be shrunk when being hit in the hitting process, so that the leather is more comfortable to wear. However, leather tanned in the prior art can expand and loosen after being used for a period of time, and the leather tanning agent has high social use value and application prospects.

The invention discloses a cashmere and wool ecological phosphate-free acidic rapid bleaching process, which comprises a bleaching treatment step and a post-bleaching treatment step, the bleaching treatment step is to load cashmere or wool to be treated into a machine, and a bleaching liquid is added; in the post-bleaching treatment step, a deoxidizing enzyme preparation is added to remove residual hydrogen peroxide, and then drying treatment is performed. The bleaching auxiliary combination used in the process can quickly remove natural grease, pigments and impurities in cashmere and wool in a short time, and a good bleaching effect is achieved. By optimizing the concentration and proportion of the bleaching agent, the bleaching rate is improved, meanwhile, the tenderness of wool fibers in the bleaching process is ensured, and fiber breakage or strength reduction cannot be caused. In the bleaching process, treatment is carried out under the conditions of low temperature (50-70 DEG C) and normal pressure, so that the damage of high temperature to wool fibers can be effectively reduced, the toughness and luster of the fibers are kept, and meanwhile, the bleaching reaction rate is accelerated.

The invention belongs to the technical field of powder coatings, and particularly relates to a preparation method of TMA-free polyester resin, a product and application of the TMA-free polyester resin. Polyhydric alcohol serves as an initial raw material, is melted and then is subjected to esterification reaction with polybasic acid and an acidification end-capping reagent which are added in batches in the presence of an organic tin catalyst and an antioxidant; and carrying out vacuum polycondensation, curing, discharging, cooling, crushing and packaging to obtain the TMA-free polyester resin with excellent performance. The coating is not only suitable for indoor coatings, but also more suitable for outdoor occasions with high durability and high decoration requirements, such as automobile coating, building exterior walls and outdoor furniture, and can also be used for manufacturing base materials for molding after coating, such as traveling cases and tempered doors, so that the construction difficulty of molding before coating is effectively reduced, and the application range is greatly widened.

The invention discloses a flocculant production and processing technology, belonging to the technical field of wastewater treatment. The invention uses natural guar gum as raw material, has the advantages of wide source, low cost, biodegradability, etc., and conforms to the current trend of environmental protection and resource conservation; the invention has a simple preparation process, low cost, and is easy to implement.

The invention discloses a manufacturing process and application of an exterior car lamp decorating part. The process comprises the steps that S1, an aluminum plate with a first surface and a second surface which are opposite is provided, a pattern is formed on the first surface or the second surface, and the other surface is coated with glue; s2, the aluminum plate is cut into the size required by the decorating part; s3, the cut aluminum plate is formed into a part shape needed by the decorating part, and a preformed part is obtained; the inner surface of the preform is a gluing surface, and the outer surface of the preform is a pattern surface; s4, injection molding is conducted on the inner surface of the preformed part, and an injection molding base material is formed; and S5, after injection molding, injection molding flash and redundant aluminum plates are removed through milling, and the exterior car lamp decorating part is obtained. The technology is a true aluminum technology with an aluminum sheet as surface decoration, the decoration part manufactured through the technology can be endowed with unique metallic luster and touch sense, the grade of a product and user experience can be remarkably improved, unique experience and luxury sense can be provided in the visual sense and the touch sense, and the vehicle looks more modern and high-end.

The utility model relates to the technical field of cement loading and transporting, in particular to a dust removal device for cement loading and transporting. According to the technical scheme, the dust removal device for cement loading and transporting comprises a dust cover, a connector, a sleeve and a discharging pipe, the connector is arranged at the top end of the discharging pipe, the bottom end of the discharging pipe is inserted into the dust cover, the sleeve is arranged on the outer side of the discharging pipe, a cavity is formed between the discharging pipe and the sleeve, and the dust cover is arranged in the cavity. Guide plates are arranged in the cavity and located on the surfaces of the sleeve and the discharging pipe, a through hole is formed in the position, located in the sleeve, of the discharging pipe in a penetrating mode, and an air inlet pipe is arranged on one side of the sleeve. According to the utility model, the dust removal efficiency is improved, the energy consumption is reduced, the maintenance procedure is simplified, and the adaptability, the environmental protection property and the like are enhanced.