93results about How to "Improve environmental performance" patented technology

The invention belongs to the technical field of synthesis of 2, 3-dipicolinic acid, and relates to a catalyst for synthesizing 2, 3-dipicolinic acid as well as a preparation method and application thereof, the catalyst is prepared from a carrier, and active components and auxiliaries loaded on the carrier; the carrier is boron nitride modified aluminum oxide, the active component is palladium-cobalt bimetal, and the auxiliary agent is magnesium; the catalyst comprises the following components in percentage by mass: 0.2 wt%-3wt% of palladium, 0.5 wt%-4wt% of cobalt, 0.05 wt%-0.3 wt% of magnesium, 5wt%-15wt% of boron nitride and the balance of an aluminum oxide carrier. The catalyst is prepared by adopting an ultrasonic-assisted sol-gel method, so that high dispersion and strong interaction of active components are realized. The catalyst shows high catalytic activity, high selectivity and excellent stability in a dichloropyridine carbonylation reaction, carbon monoxide is used as a carbonyl source, the atom economy is high, and the green chemical requirement is met.

The utility model relates to fertilizer production technical field, and disclose a kind of ration feeding mechanism for fertilizer production, including feeding cylinder, bottom bracing, apron, feed hopper, conveying pipe, main shaft, driving ring, feeding plate, motor, drive shaft, discharge chute, discharge hopper, guide plate, connecting seat, round groove, spring, in the utility model, the sealing holding space is formed between the two groups of feeding plate and closure plate, when conveying pipe is conveyed to the material between the two groups of feeding plate by feed hopper, two groups of feeding plate and closure plate and guide plate can store raw materials, avoid raw materials and feeding cylinder inside contact, when the feeding plate rotation of driving ring outside is driven by motor starting, two groups of feeding plate can directly move raw materials, when guide plate between two groups of feeding plate moves to discharge chute position, two groups of guide plate bottom are without supporting force, guide plate can be turned down and open discharge under the weight of raw materials extrusion, after discharging, guide plate can be automatically reset by spring.

The invention discloses a production method of a PA / PE high-barrier composite film bag. The composite film bag comprises an outer layer, a middle layer and an inner layer, the outer layer is prepared from PA6, glass fibers, maleic anhydride grafted polyethylene, an antioxidant, a slipping agent, an ultraviolet light absorber, titanium dioxide, nano silicon dioxide and polyimide; the middle layer is prepared from EVOH (Ethylene Vinyl Alcohol), polyamide-imide, nano montmorillonite, maleic anhydride grafted polypropylene, an antioxidant, a slipping agent, terpene resin, polyvinylidene chloride and polybutylene terephthalate; the inner layer is prepared from HDPE, LLDPE, mPE, an antistatic agent, silicon dioxide, dioctyl phthalate, an antibacterial agent and polylactic acid. The composite film bag prepared by the invention not only has high barrier property and good strength, but also has various functions.

The present application belongs to the technical field of cigarette production and manufacturing, and discloses a refrigerating capacity balancing system for a cigarette process refrigerating system. The system comprises a conveying pipeline, a backflow pipeline, a control module and a plurality of cooling branches. The conveying pipeline is used for conveying cooling water; the backflow pipeline is used for backflow of the cooling water; each cooling branch has a water inlet end in communication with the conveying pipeline and a backflow end in communication with the backflow pipeline, and has a cooling area between the backflow end and the water inlet end; the backflow end of each cooling branch is provided with a balancing valve, and the opening range of the balancing valve can be adjusted to control the backflow amount of the backflow end; and the control module is in communication connection with the balancing valve. When the system is used, the backflow amount of any cooling branch is kept unchanged, so that the excess cooling water can flow to other cooling branches. On the one hand, the cooling efficiency can be improved, and on the other hand, the energy consumption for conveying the cooling water can be reduced, thereby improving the environmental protection performance in the whole refrigerating process.

This utility model discloses an environmentally friendly adjustable inverting die head for processing plastic bottle preforms, including a blown film machine. A transport trough passes beneath the forming mold of the blown film machine, and a transport chain is connected internally to the transport trough. Several equally spaced bases are mounted above the transport chain, and plastic bottles are fitted onto the inverting die heads. Each inverting die head consists of three symmetrically arranged die heads arranged in a ring. Different sized top blocks are inserted into the gap between the three die heads. The gap between the three die heads without the top blocks represents the minimum inverting size. Rectangular through-slots are machined on the inner surfaces of each of the three die heads, and top blocks are embedded downwards within these rectangular through-slots. Magnetic suction plates are also embedded in the inner surfaces of the rectangular through-slots. This adjustable inverting die head allows for adjustment of its size within a certain range to accommodate preforms of various sizes, reducing the need to replace all inverting die heads and minimizing waste parts, resulting in better environmental performance.

According to the construction process, a hopper feeding device, a transmission system, a heating extrusion device, a cooling shaping device, a cutting device, a thread rolling device, a traction device, a grinding device and a sterilization device are arranged. The acupuncture needle prepared from the poly (lactic-co-glycolic acid) material has good non-toxic biodegradability, the acupuncture needle prepared from the poly (lactic-co-glycolic acid) material has good in-vivo biocompatibility, degradation products of lactic acid and glycolic acid can participate in metabolism of a human body, and finally carbon dioxide and water are formed and discharged out of the body. Meanwhile, the material is degraded by organisms and microorganisms in the natural world in the natural environment; by adding the traditional Chinese medicine pigment and adding a small amount of surfactant (phenol polyethylene glycol solvent or zinc naphthenate), the finished acupuncture needle has excellent weather resistance, light resistance, chemical corrosion resistance and ultraviolet resistance.

The application relates to a preparation process of an 800-volt high-voltage-resistant electromagnetic wire, and belongs to the technical field of electromagnetic wire preparation, which comprises a varnished flat copper wire production preparation process and a varnished round copper wire production preparation process; the varnished flat copper wire production preparation process comprises a semi-finished product bare copper wire production preparation process and a finished product varnished flat copper wire production preparation process; and the varnished round copper wire production preparation process comprises a semi-finished product bare copper wire production preparation process and a finished product varnished round copper wire production preparation process. The preparation process of the 800-volt high-voltage-resistant electromagnetic wire can effectively improve the voltage resistance performance of the electromagnetic wire as a whole, effectively reduce the loss rate of the electromagnetic wire as a whole, and effectively reduce the emission amount of the electromagnetic wire as a whole, so that the advantages of high safety, low preparation loss and good environmental protection effect are achieved.

The utility model relates to a kind of porcelain tunnel kiln production line, wherein porcelain tunnel kiln production line includes the tunnel kiln main part for firing porcelain and the multiple energy-saving efficient combustors of interval arrangement along the length direction of tunnel kiln main part being arranged on tunnel kiln main part, energy-saving efficient combustor includes outer sleeve, inner tube of insertion in outer sleeve and branch pipe of being arranged in the gap between outer sleeve and inner tube, the first side of the outer sleeve is equipped with the first inlet of the air into gap, the first end of the inner tube has the second inlet of the natural gas into, the first end of the branch pipe has the third inlet for the hydrogen gas containing into, the middle part of the inner tube is equipped with the fourth inlet of the second end port communication of branch pipe, the wall of tunnel kiln main part is equipped with channel, energy-saving efficient combustor is arranged in channel, and this porcelain tunnel kiln production line uses energy-saving efficient combustor, it is favorable to improve its combustion efficiency, reduce combustor use cost.

This utility model discloses an ash and slag separation device based on multi-source sludge co-incineration, including a separation and processing box. A feeding hopper is embedded in the bottom of the inner side of the separation and processing box, and an ash discharge hopper is embedded in the top of the inner side of the separation and processing box. A guide frame is embedded in the middle of the inner side of the separation and processing box, and a slag discharge guide trough is fixedly connected to the middle of one side of the guide frame. This utility model ensures that the sliding inner frame can drive the multi-layer screening screen to periodically sway horizontally, so that the furnace ash falls down along the top holes of the multi-layer screening screen into the ash discharge hopper for discharge. The ash and slag intercepted by the multi-layer screening screen is guided to the top of the slag discharge guide trough and discharged to the side of the separation and processing box through the slag discharge guide trough, thereby realizing rapid separation of ash and slag, effectively preventing the ash and slag from containing a large amount of dust that would affect subsequent processing, and thus effectively improving the use effect of the ash and slag separation device.

The invention provides a straw carbonization power plant, and relates to the technical field of straw carbonization, the straw carbonization power plant comprises a main machine seat and a carbonization tank, the carbonization tank is arranged at the upper end of the main machine seat, the main machine seat comprises a tank body platform and a horizontal seat plate, and the horizontal seat plate and the tank body platform are respectively fixed at the front and rear ends of the main machine seat; a circulating valve pipeline is arranged in the horizontal seat plate; the straw pyrolysis carbonization device has the beneficial effects that the carbonization components such as the carbonization bin and the heating seat which are arranged in the carbonization tank in a combined manner and the circulation component are adopted, so that when straws are pyrolyzed and carbonized, pumping guide of suction airflow in the circulation component is utilized to act on the straws and gas products in the carbonization bin along the circulation pipe, the connecting pipe bin and the carbonization bin; the pyrolyzed straw is pressed and conveyed through airflow, meanwhile, heat transfer and circulating conveying of the straw are completed in cooperation with flowing gas products, and the utilization rate of carbonized gas products is increased while the carbonization processing efficiency of the device is guaranteed.

The utility model belongs to garbage sorting technical field especially relates to a garbage landfill surface layer muddy garbage sorting device. The utility model, including the frame, be provided with feeding mechanism, screening mechanism and magnetic separation mechanism on the frame, the feeding mechanism includes chain plate feeder and feeding conveyor, the output of chain plate feeder is connected with the input of feeding conveyor, the screening mechanism includes drum screening machine and comprehensive sorting machine, the output of feeding conveyor is connected with the input of drum screening machine, the magnetic separation mechanism sets up between drum screening machine and comprehensive sorting machine, the output of drum screening machine is connected with the input of magnetic separation mechanism. The utility model has realized to the efficient, accurate sorting of garbage landfill surface layer muddy garbage, not only solved the problem existing in the prior art, and has simple structure, convenient operation, high sorting efficiency, environmental protection effect is good and so on advantage.

The utility model relates to the technical field of hanger processing, in particular to an assembly line automatic dust-free hanger paint removing device which comprises a conveying device, a cleaning box making contact with the ground is arranged on the surface of the conveying device, a cleaning assembly is arranged on the surface of the cleaning box, and the cleaning assembly comprises a cleaning box. The cleaning device comprises a cleaning box, an inner cavity of the cleaning box is fixedly connected with a filter screen plate, the center of the top of the filter screen plate is fixedly connected with an inclined plate, the bottom of the inner cavity of the cleaning box is fixedly connected with a first motor, and an output shaft of the first motor is fixedly connected with a disc. The water flow after flushing is effectively filtered, and the cyclic utilization rate of water resources is remarkably increased. According to the assembly, paint slag, sand grains and other solid impurities in water flow are efficiently intercepted and intensively discharged through the filter screen plate and the cleaning box, and it is ensured that the quality of water flowing back to the water tank meets the reuse requirement.

The utility model relates to the technical field of color master batch production discloses a raw material adding device for color master batch production, including the stirring drum, the inside of stirring drum is equipped with the stirring assembly for carrying out the stirring to raw material, be equipped with multiple ring array arrangement setting of adding assembly that can add raw material on the stirring drum, through setting up multiple adding assembly and drive component, realized the automatic, according to different time adding of multiple raw materials, improved the accuracy and efficiency of raw material addition in the color master batch production process, the inclined design of adding box bottom and the upward movement of push board, raw material is added conveniently, the structure such as reduction motor, threaded rod can accurately adjust the time of push board's upshift, the adding time of raw material, the setting of sealing cover and sealing baffle, the environmental protection performance of device is strengthened, and the production environment and personnel health are guaranteed.

The invention relates to the technical field of plastic recycling, and discloses environment-friendly equipment for separating and recycling metal and plastic composites.The environment-friendly equipment comprises an internal stress separating box, the upper surface of the internal stress separating box is fixedly connected with a feeding hopper, and the lower surface of the internal stress separating box is fixedly connected with a crushing chamber; the inner surface of the crushing chamber is rotationally connected with a crushing roller, the upper surface of the inner wall of the internal stress separation box is fixedly connected with an electric guide rail, the moving end of the electric guide rail is fixedly connected with a liquid storage shell, and the right side face of the liquid storage shell is fixedly connected with a stainless steel corrugated pipe. As the thermal expansion coefficients of metal and plastic between materials are different, the shrinkage amplitudes of the metal and the plastic are different during rapid cooling, and huge internal stress can be generated on a bonding interface, so that the bonding force of the metal and the plastic is directly weakened or even damaged, and the separation efficiency of the metal and the plastic is improved compared with a common mode.

The utility model relates to industrial flue gas emission technical field, a kind of flue gas desulfurization and denitrification device, including inlet fan and the dust fall box being communicated with its one side by pipeline, further include: install in the dust fall mechanism of dust fall box one side to the dust in flue gas is handled, the side of dust fall box is communicated with flue gas total air inlet pipe;The utility model is provided with dust fall mechanism, dust fall mechanism can rotate evenly water spraying to the flue gas in dust fall box, can reduce the dust particle of flue gas, prevent dust particle influence subsequent desulfurization and denitrification processing, prevent dust discharge simultaneously to cause influence to environment, improve the practicality of device, by the setting of processing mechanism, flue gas can be desulfurized and denitrified, prevent directly discharging to cause serious influence to air quality, prevent directly discharging to cause influence to health, prevent simultaneously to cause negative influence to ecological system and water body, improve environmental protection effect, satisfy the demand of user.

The utility model discloses a paper packaging box of bottom reinforcement relates to paper packaging box field, including paper box main part, four first connecting blocks and four second connecting blocks are symmetrically installed on the bottom wall of paper box main part, two first reinforcing plates are symmetrically inserted and installed in paper box main part, first connecting block and second connecting block, two second reinforcing plates are symmetrically inserted and installed on paper box main part and two first reinforcing plates, and second reinforcing plate is composed of base plate, inserting board and connecting pin key, two of base plate, inserting board are provided with, and inserting board fixed mounting is in the inner end of base plate, and connecting pin key is inserted and installed in two inserting boards, through fixedly setting first connecting block and second connecting block on the bottom wall of paper box main part, and setting first reinforcing plate on paper box main part, first connecting block, second connecting block, set up second reinforcing plate on paper box main part, first reinforcing plate, have improved the bottom bearing capacity and the compression resistance of paper box main part obviously.

The utility model discloses a garbage earlier-stage treatment device of a garbage incineration system. The garbage earlier-stage treatment device comprises a garbage bag breaking assembly, a feeding conveying belt, a crushing assembly, a dewatering assembly and a discharging conveying belt. The garbage bag breaking assembly is used for breaking packaging bags of garbage and scattering the garbage into the feeding conveying belt. The feeding conveying belt is used for conveying the garbage dispersed by the garbage bag breaking assembly to the crushing assembly; the crushing assembly is used for crushing the dispersed garbage into garbage fragments; the dewatering assembly is used for dewatering the garbage fragments and conveying the dewatered garbage fragments to the discharging conveying belt; and the discharging conveying belt is used for outputting the dehydrated garbage fragments. According to the garbage incinerator, garbage can be crushed into the preset size, the garbage is dewatered, the problems of insufficient combustion, more residues and long consumed time are solved, meanwhile, the problem that wet garbage affects the garbage combustion temperature is avoided, and the garbage treatment efficiency and the environment-friendly performance of the incinerator are improved.

The utility model discloses an environmental protection type commercial concrete waste residue recycling equipment relates to building solid waste treatment technical field, and the utility model discloses a crushing box is fixedly connected with inclined bench in the inner bottom wall of crushing box, and the outer side wall of crushing box is fixedly connected with the casing, and the inside of casing is provided with motor, and the output shaft end of motor is fixedly connected with first crushing roller, and the output shaft of motor is fixedly provided with first gear, and the side wall of first gear is engaged with second gear, and the lateral wall of second gear is fixedly connected with cross shaft in the middle part, and the lateral wall of cross shaft is fixedly connected with second crushing roller, and the inside of crushing box and below first crushing roller and second crushing roller are rotationally provided with the guide plate, and the lateral wall of guide plate is provided with the water leakage hole, the utility model discloses can realize the continuous operation of the crushing, dehydration and magnetic separation of commercial concrete waste residue and the iron separation of the material, thereby can recycle commercial concrete waste residue.

The utility model discloses a separated spray dust removal tower which comprises a tower body, a plurality of groups of spray pipes and spray heads, a sedimentation tank arranged at the bottom of the tower body, a spray pump communicated with the spray pipes, and spray isolation components arranged between the adjacent spray pipes. The spraying isolation assembly comprises an annular water collection tank, a water baffle arranged above the through hole, a water drainage pipe communicated with the water collection tank and a plurality of supporting pieces, the water collection tank is used for collecting spraying liquid on the upper layer, the water baffle is arranged above the through hole in a suspended mode and prevents the spraying liquid from directly dripping to the lower layer, and the water drainage pipe introduces the collected liquid into the sedimentation tank. By means of the structure, liquid physical isolation of different spraying intervals is achieved, meanwhile, vertical and smooth flowing of flue gas is kept, the dust removal efficiency is improved, interlayer interference is avoided, and the device has the advantages of being simple in structure, high in adaptability, stable in operation and the like and is suitable for various industrial flue gas treatment scenes.

The utility model discloses a kind of filtering recovery devices of alkali-containing wastewater, including fixed bottom plate, the top surface middle part of the fixed bottom plate is fixed with lower support shell, the top surface middle part of the top plate of lower support shell is profiled with upper installation groove, the lower part of upper box body is inserted in upper installation groove, the bottom surface of the bottom plate of upper box body is pressed in the bottom surface of upper installation groove, the outer side wall of the bottom of upper box body is close to or close to the inner side wall of upper installation groove, the top plate of upper box body is fixedly connected on the top plate of lower support shell by bolt, the top surface middle part of the bottom plate of upper box body is fixed with placing rack, the top surface side of the top plate of placing rack is fixed with rectangular limit frame, the lower part of feed box body is inserted in rectangular limit frame;It can be filtered after wastewater is filtered multiple times, sodium hydroxide and water liquid can be discharged from first liquid discharge pipe by alkali-resistant nanofiltration membrane filter element, realize collection and reuse, improve the recycling of alkali, reduce the use of acid, environmental protection effect is good, simultaneously, reduce processing cost.

The utility model discloses a molten aluminum vacuum ladle smoke exhaust system, which relates to the technical field of smoke exhaust equipment, and comprises an electrolytic tank, a smoke suction pipe is arranged in the electrolytic tank, the end part of the smoke suction pipe extends to the outside of the electrolytic tank, the end part of the smoke suction pipe is communicated with a smoke exhaust pipe, the upper end opening of the smoke exhaust pipe is provided with a smoke exhaust fan, and the upper end opening of the smoke exhaust pipe is provided with a smoke exhaust fan. A spray head assembly is installed in the smoke exhaust pipe, a water storage tank is installed outside the electrolytic tank, a water supply pump is installed outside the water storage tank, water flow is sprayed into the smoke exhaust pipe through the spray head assembly, heat exchange is conducted through contact between the water flow and high-temperature smoke, and therefore the temperature of the smoke passing through the area can be reduced; the smoke exhaust fan and other assemblies are prevented from being overheated, particles in the smoke are adsorbed through water flow, the smoke is filtered, the particles in the smoke are prevented from being discharged into the atmosphere, the atmosphere is protected, and the environmental protection performance of the equipment is improved.

The utility model discloses a supercritical heat storage top peak heat supply unit, including steam turbine system, steam heat storage system, heat network system and power grid system, steam turbine system includes the steam turbine and generator of cooperation, and steam heat storage system includes steam water heat exchanger and hot water heat storage jar, and heat network system includes first station, primary network heat supply pipe and heat user, and primary network heat supply pipe includes primary network backwater pipe and primary network water supply pipe, steam turbine passes through first station and connects primary network heat supply pipe, and primary network heat supply pipe is connected with heat user, and steam turbine passes through steam water heat exchanger and connects hot water heat storage jar, and hot water heat storage jar connects primary network heat supply pipe, sets up expansion water tank and water replenishing pump, and the water inlet of expansion water tank is connected with primary network backwater pipe, and the water outlet is connected with water replenishing pump inlet, and water replenishing pump outlet is connected with primary network water pipe, the utility model discloses the adjusting effect of expansion water tank can more effectively absorb and release heat, thereby improves the efficiency of heat storage, and reduces the operation pressure fluctuation of unit.

The invention provides a filtering device for sewage treatment, and belongs to the technical field of sewage treatment.The filtering device comprises a filtering box body, a filtering assembly, a dirt scraping assembly, a buoyancy driving assembly and a buoyancy conversion assembly.The top of the filtering box body is provided with a water inlet, and the filtering assembly is fixedly arranged in the filtering box body and located below the water inlet; the filtering assembly is arranged in the filtering box body and is used for filtering sewage entering the filtering box body from the water inlet, the dirt scraping assembly is arranged at the upper part of the filtering assembly, and the buoyancy driving assembly is arranged at the bottom of the inner side of the filtering box body and can move up and down under the influence of the sewage entering the bottom of the inner side of the filtering box body. Compared with the prior art, when sewage is filtered, automatic online cleaning of the filtering assembly can be achieved, an electric driving element does not need to participate in the cleaning process, electric energy does not need to be consumed, and the environment-friendly sewage treatment device has the advantages of being good in environment-friendly effect and low in cost.

The present application discloses a mine water sludge and oil slick integrated treatment system, which comprises a control system, the control system is respectively connected with a sludge collection and discharge system and an oil slick treatment system, the sludge collection and discharge system comprises an underwater reciprocating mud scraper, the output end bottom of the underwater reciprocating mud scraper is provided with an annular air stirring hopper, and the annular air stirring hopper is communicated with a wear-resistant slurry pump through a mud discharge pipeline.The present application also discloses a mine water sludge and oil slick integrated treatment method, which comprises the following steps: obtaining the related information of a pre-sedimentation tank; setting the sludge collection and discharge system and the oil slick treatment system according to the related information of the pre-sedimentation tank; removing the sludge at the bottom of the mine water pre-sedimentation tank and cleaning the oil slick on the liquid surface of the mine water pre-sedimentation tank.The mine water sludge and oil slick integrated treatment system and method realize the integrated removal of the sludge and the oil slick in the mine water, have the advantages of wide applicability, high treatment efficiency, high automation degree and the like, and can realize the efficient removal of the sludge and the oil slick.

This utility model discloses a cultivation device for corn planting, including a water storage tank with a circulating water bed inside. Multiple water flow shells are arranged in the water outlet direction of the circulating water bed, and a cultivation area is set between adjacent water flow shells. The center of each water flow shell is recessed downwards to form a flow channel. Multiple flow channels correspond one-to-one with multiple outlets of the circulating water bed. Multiple permeable holes are formed on the inner wall of the flow channels, penetrating the water flow shells and communicating with the cultivation area. This utility model, through the lateral water delivery design of the water flow shells, allows water to fill the entire cultivation area via the flow channels. The water seeps out through the permeable holes, diffusing from both sides of the cultivation area towards the center through water infiltration, avoiding the problem of soil particles splashing caused by water directly impacting the soil surface from top to bottom in existing irrigation methods.

The application discloses a dry powder artistic micro-cement without efflorescence and a preparation method thereof, and belongs to the technical field of artistic cement preparation.The dry powder artistic micro-cement without efflorescence disclosed by the application comprises the following raw materials in parts by weight: white cement 25-60 parts, artistic sand 25-50 parts, latex powder 3-8 parts, cellulose 0.2-0.8 parts, dispersing agent 0.2-0.5 parts, wetting agent 0.1-0.5 parts, defoaming agent 0.1-0.6 parts, water reducing agent 0.1-0.5 parts and wood fiber 0.2-1 part.The dispersing agent, the wetting agent and the like used in the application have special effects;after the dry powder artistic micro-cement is prepared by using a reasonable ratio, the efflorescence resistance of the micro-cement can be improved, and the artistic beauty of the artistic micro-cement, i.e., the artistic beauty of light and uneven color, can be more fully displayed.

The utility model provides a kind of imitation bark pattern nonwoven fabric's calendering device, comprising: first silicone rubber pressure roller and cooling rigid roller;The customized calendering roller is set to the side of the cooling rigid roller.The utility model provides a kind of imitation bark pattern nonwoven fabric's calendering device, based on existing nonwoven fabric shower film compound machine, increased calendering device, effectively solved the three-dimensional effect of nonwoven fabric calendering is not strong, processing stability is poor and the problem such as pattern keeping is not strong, select thermoplastic processing simple and not easy to deform after forming, and stone paper with high environmental protection performance is used as the composite material of imitation bark pattern nonwoven fabric, and the visual landscape of product is added by using bark texture to nonwoven fabric printing, with higher aesthetic value, reduce calendering processing difficulty, improve processing stability;Imitation bark pattern nonwoven fabric bag concave-convex three-dimensionality is best, pattern keeping property is strong;Pressure is stable and average on the contact surface of calendering device, and finally pattern effect is uniform.

The utility model relates to an air purging organic solvent concentration appearance, including volatile cabinet, sample container fixing frame, air jet head, air pump and exhaust pipe, sample container fixing frame sets up in volatile cabinet, for placing sample container, air jet head dismounts and sets up in volatile cabinet, and sets up the top of sample container, the air supply pipe of air pump is connected with air jet head, exhaust pipe is connected with volatile cabinet, adopts the way of air flow purging organic solvent liquid surface with setting speed to organic solvent, accelerates the volatilization of organic solvent, is applicable to organic solvent volatilization and concentration, and the application scope is extensive, its air jet head can replace dismount, prevents the pollution, its operation is simple, improves the concentration efficiency, improves the environmental protection performance.

This invention discloses a high-precision CNC laser cutting machine for metal processing, comprising a base, a housing fixedly connected to the upper end of the base, and multiple casters fixed to the lower end of the base; a limiting mechanism, comprising a vertical plate fixedly connected to the upper end of the base, a mounting bracket fixedly connected to the left side of the vertical plate, a drive motor mounted on the mounting bracket, the output shaft of the drive motor passing through the vertical plate and fixedly connected to a three-jaw chuck; and a cutting mechanism, comprising an electric slide rail fixedly connected to the top of the housing, a slide rail seat slidably connected to the sliding part of the electric slide rail, and a laser cutting head mounted at the lower end of the slide rail seat. This laser cutting machine adopts a sealed design, which can prevent smoke and dust from spreading into the surrounding environment during use, improving its environmental performance. In addition, it can continuously cool the cutting head, extending its service life.

The invention relates to the technical field of green buildings, in particular to a material-saving environment-friendly light steel keel modular partition wall which comprises a base rod which is vertically fixed to the ground, a plurality of horizontal steel channels are horizontally and detachably connected to the base rod, and vertical steel channels and reinforcing rib mechanisms are detachably connected to one ends of the horizontal steel channels. The reinforcing rib mechanism is detachably connected between the horizontal channel steel and the vertical channel steel and between the horizontal channel steel and the base rod, the reinforcing rib mechanism comprises an upper inclined strut and a lower inclined strut which are obliquely arranged, and flow guide grooves are formed in the upper inclined strut and the lower inclined strut and used for reinforcing connection and serving as flow guide paths. By means of the detachably-connected modular structure and the integrated planting mechanism, the problems that a traditional partition wall is complex in installation and poor in environmental protection performance are solved, and the advantages that the installation process is simplified, the construction efficiency is improved, the structural stability is enhanced, and the green plant planting function is integrated to improve the environmental protection performance are achieved.