30results about How to "Improve the absorption effect" patented technology

The invention relates to an auxiliary brick paving robot and an auxiliary brick paving method, and the robot comprises a suction cup butt joint module which is provided with a suction cup used for adsorbing bricks; the vehicle body can move in all directions; the horizontal lifting arm is supported above the vehicle body in a horizontal swinging manner, the swinging tail end of the horizontal lifting arm is connected with a lifting machine, and the lifting tail end of the lifting machine is provided with a third butt joint structure detachably connected with the suction cup butt joint module; the turnover mechanism comprises a suction cup turnover module and a turnover driving mechanism, the suction cup turnover module is connected to the vehicle body in a turnover mode and located in the moving range of the third butt joint structure, the turnover driving mechanism is installed on the vehicle body and used for driving the suction cup turnover module to conduct turnover motion, and the suction cup turnover module is detachably connected with the suction cup butt joint module. According to the brick overturning device, feeding, moving and automatic overturning of bricks can be achieved, and the physical labor of workers is greatly reduced.

The invention discloses a vertical oil-water separation device, and relates to the technical field of sewage treatment.The vertical oil-water separation device comprises a rack, a separation tank, a receiving tank and a sliding frame, a first matching rack is arranged on the rack on one side and is parallel to a horizontal guide rail, a walking motor is fixedly arranged on the sliding frame and is connected with a driving gear, and the driving gear is connected with the separation tank; the sliding frame is provided with installation frames, a longitudinal guide rail is arranged between the installation frames, the longitudinal guide rail is provided with a suction mechanism and a floating oil dipping mechanism, the installation frames carry the suction mechanism and the floating oil dipping mechanism to be installed along the horizontal guide rail in a sliding mode, and a feeding pipe is fixedly installed at the bottom of the machine frame. The vortex generation assembly is arranged in the separation tank, surface floating oil is cleaned through the suction mechanism and the floating oil dipping mechanism, meanwhile, the vortex generation assembly is arranged, vortexes are generated in the separation tank, the floating oil is gathered, and the cleaning effect and cleaning efficiency of the surface floating oil are improved.

The utility model relates to the technical field of packaging mechanical equipment, and discloses a bag warehouse device for a bagging machine, which comprises a bag taking station, a bag placing station and a conveying mechanism, the bag taking station is provided with a detection electric eye and an upward suction bag mechanism, the conveying mechanism is provided with a plurality of bag bins for placing prefabricated bags, and when the bag taking station detects that the electric eye senses that no bag exists, the bag bin is opened, and the bag bin is closed. The conveying mechanism drives the bag bin at the bag placing station to move to the bag taking station; the upper bag sucking mechanism comprises a bag sucking assembly and an up-down displacement assembly, when the bag taking station detection electric eye senses that a bag exists, the up-down displacement assembly drives the bag sucking assembly to descend to the preset position, the bag sucking assembly sucks the prefabricated bag at the bag taking station, and the up-down displacement assembly drives the bag sucking assembly to ascend to the original position. According to the utility model, the packaging machine does not need to stop working after the prefabricated bag in the bag bin is used up, and the prefabricated bag can be continuously used after being manually placed in the bag bin; only the bag bin at the bag placing station needs to always have the state of the prefabricated bag.

The invention discloses a crawler-type shot blasting machine adopting a locking structure, and relates to the technical field of shot blasting cleaners.The crawler-type shot blasting machine comprises a machine body, a cleaning cylinder is fixedly installed on the upper portion of the interior of the machine body, a feeding pipe communicated with the interior of the cleaning cylinder is fixedly installed on the upper portion of the cleaning cylinder, and a driving shaft is movably installed on the machine body; one end of the driving shaft is located in the cleaning cylinder, a discharging opening is formed in the lower portion of the side wall of the cleaning cylinder, a screen is arranged in the middle of the interior of the machine body, a discharging opening is formed in the side wall of the machine body, and a driving mechanism is arranged on the machine body and comprises a motor base, a driving motor, a first gear, a second gear and a first transmission belt. The motor base is fixedly installed on the top of the machine body, and the driving motor is installed on the motor base. The effect of collecting dust in the machine body while screening the materials is achieved, meanwhile, the suction effect on air in the machine body can be improved, and then the dust collection effect is improved.

The invention discloses an oil fume collecting hood of an integrated cooker, and relates to the technical field of oil fume hoods. An oil gathering plate of a traditional oil fume cover cannot effectively gather oil fume due to oil stains and is inconvenient to clean. The device comprises a mounting cover body, the mounting cover body is arranged in a table shape, a first gas gathering cavity is formed in the mounting cover body, a through opening is formed in the side portion of the mounting cover body, the top of the mounting cover body is rotationally connected with a closed cover matched with the through opening, a second gas gathering cavity communicated with the first gas gathering cavity is formed in the closed cover, and a plurality of elastic oil absorption rods are rotationally connected in the closed cover in sequence; a driving piece is arranged to drive the elastic oil absorption rod to rotate, and meanwhile, an oil paper assembly is arranged; the oil paper assembly comprises a paper pressing roller and a paper collecting roller, the paper collecting roller is in transmission connection with the air guide transmission assembly, and a paper pressing piece is clamped on the paper collecting roller; the closed shaft is connected with the oil gathering assembly through the second transmission assembly. According to the technical scheme, the gas gathering effect is improved, the oil smoke adsorption capacity is enhanced, the suction effect is improved, the elastic oil suction rods make full contact with the oil gathering plate, and the front face and the back face of the oil gathering plate are automatically cleaned.

The invention provides oily sewage treatment equipment, which relates to the technical field of sewage treatment and comprises an oily sewage treatment shell, two driving linkage racks are fixedly mounted at the top of the oily sewage treatment shell; two groups of mounting mechanisms are arranged, and the two groups of mounting mechanisms are mounted on the front side and the rear side of the oily sewage treatment shell; the oil suction mechanism is mounted on the two groups of mounting mechanisms and is used for sucking oil at the top of sewage; the sewage treatment mechanism is mounted on the two groups of mounting mechanisms, is positioned above the oil suction mechanism, and is used for adding a sewage treatment agent into sewage; according to the oil suction device, the two driving linkage racks can drive the circular connecting shaft to rotate, different positions of the oil suction cotton roller can make contact with oil conveniently, and the oil suction effect is improved; the problem that the sewage treatment effect is reduced due to the fact that oil at the top of sewage cannot be automatically sucked when a sewage treatment agent is put is solved.

The utility model discloses a kind of sponge city efficient permeation greenbelt planting structures, it includes: green grass layer, artificial backfill nutrient soil layer, non-woven geotextile, water-accumulating layer and original soil layer, water-accumulating layer, non-woven geotextile, artificial backfill nutrient soil layer and green grass layer are sequentially laid from bottom to top in the upper of original soil layer, first drainage pipeline is provided in original soil layer, a plurality of rootlet pipes are provided on first drainage pipeline, a plurality of rootlet pipes are arranged along the direction of first drainage pipeline, one end of rootlet pipe extends into water-accumulating layer, a plurality of first through holes are provided on rootlet pipe, overflow pipe is provided on first drainage pipeline, overflow pipe extends to green grass layer upwards, overflow hole is provided on first drainage pipeline, overflow hole bottom is connected with second drainage pipeline, second drainage pipeline is connected with water-collecting well, and sealing assembly is provided at overflow hole. The utility model can solve the problem of poor permeability of urban green space compared with prior art.

The utility model discloses a smoke dust adsorption device for circuit welding of communication products, which belongs to the technical field of circuit board welding and comprises a processing table. The device further comprises a filtering assembly, the filtering assembly comprises a filtering box, a draught fan is installed on one side of the filtering box, the other side of the filtering box is fixedly connected with one end of a communicating hose, the other end of the communicating hose is connected to a communicating connector in a sleeved mode, and the communicating connector communicates with one end of a gooseneck pipe. The other end of the gooseneck pipe is provided with a dust collection cover through a mounting seat; the adjusting groove, the adjusting block, the gooseneck pipe and other structures are arranged to be used in cooperation, the structure is simple, convenience and practicability are achieved, the angle and position of the dust collection cover can be adjusted, and therefore the dust collection cover can be conveniently moved to an accessory at the position where smoke dust is generated during welding, the requirement for suction force of a draught fan is relatively low, generated noise is also low, and the welding quality is improved. In addition, the energy consumption is reduced, and meanwhile, the smoke dust suction effect is improved.

The invention relates to a pneumatic suction feeder for wood-plastic acoustic panel production. The pneumatic suction feeder comprises a bottom plate frame. The two conveying platforms are installed in the rectangular grooves in the left side and the right side of the bottom plate frame correspondingly, the conveying platforms are used for conveying the wood-plastic acoustic boards at a constant speed, and limiting frames are installed at the ends of the inner sides of the conveying platforms; the conveying assembly is installed in the middle of the upper end of the bottom plate frame, the conveying assembly and the two conveying platforms are arranged in a cross shape, an embossing station is arranged between the conveying assembly and the side walls of the conveying platforms, and a workbench is arranged on the embossing station; the material taking assembly is installed at the upper end of the conveying assembly, and the material taking assembly is configured to be used for sucking the wood-plastic acoustic boards on the conveying platform and conveying the wood-plastic acoustic boards to the embossing station; according to the wood-plastic sound-absorbing board sucking and feeding device, the functions that holes in a wood-plastic sound-absorbing board are sealed firstly, and then the wood-plastic sound-absorbing board is adsorbed and fixed in an adsorption mode can be achieved, and the phenomenon that the wood-plastic sound-absorbing board falls off and is damaged in the sucking and feeding process is avoided.

The dust filtering device comprises a bottom plate, a plurality of pulleys are fixedly installed on the bottom wall of the bottom plate, the upper end face of the bottom plate is fixedly connected with monitoring equipment through a lifting mechanism, and the upper end face of the monitoring equipment is fixedly connected with a dust removal box through a connecting mechanism. The monitoring equipment inlet pipe extends into the dust removal box, a connecting pipe communicated with the interior is fixedly mounted on the outer wall of the dust removal box, an air suction pump is fixedly connected to the end of the connecting pipe, an outlet of the air suction pump is communicated with the connecting pipe, and a connecting pipe is rotatably mounted on the outer wall of the air suction pump inlet pipe through a connecting sleeve. By arranging the reciprocating lead screw, the lead screw sleeve, the cleaning brush and other assemblies, the reciprocating lead screw drives the lead screw sleeve to move through cooperation of the limiting rod, the lead screw sleeve can drive the cleaning brush to clean dust on the outer wall of the filter screen plate, and therefore the dust can be conveniently cleaned when the monitoring equipment works.

The utility model discloses a chest tumor hydrops drainage device, which belongs to the technical field of medical instruments and comprises a liquid inlet tube, a movable tube slidably connected inside the liquid inlet tube, a drainage tube fixedly mounted inside the liquid inlet tube, a fixed block fixedly mounted at the top of the movable tube, and a threaded rod rotatably connected inside the fixed block. An outer fixing ring is fixedly installed at the top of the liquid inlet pipe, a handle is fixedly installed at one end of the threaded rod, the other end of the threaded rod is rotationally connected to the surface of the outer fixing ring, and in order to prevent the drainage pipe from being bent, the threaded rod is rotated through the handle, so that the movable pipe in the liquid inlet pipe can ascend in the liquid inlet pipe to the top plate; the limiting ring at the bottom of the movable tube is attached to the top plate, so that the movable tube is prevented from sliding out, the length of the whole device is adjusted, the drainage tube has enough length to be connected with machines such as a closed drainage bottle and a negative pressure aspirator, and the accumulated water suction effect of the drainage tube is improved.

The utility model relates to the technical field of stirring mechanisms, and discloses a feed stirring mechanism which comprises a shell, a dust removal opening, an annular conduction shell, a communication pipe, a filter screen, a feeding opening, a discharging opening and a stirring assembly. When the feed mixing device is used, feed needing to be mixed is poured into the shell from the feeding opening, the feed is mixed through the stirring assembly, during mixing, dust in the shell is sucked out through the communicating pipe through the dust suction mechanism, and in the process of the western region, the filter screen can prevent feed particles from being sucked out. By the adoption of the mechanism, the annular communicating shell and the communicating pipe can be arranged to be matched with an external dust suction mechanism to quickly suck out dust in the shell, and compared with the prior art, gaps are reduced, so that the dust is directly sucked, dust leakage is prevented, and the suction effect is improved.

The utility model particularly provides a combined vacuum chuck. The combined vacuum chuck comprises a sponge chuck, a metal substrate and a metal cover plate, a plurality of semicircular through grooves are formed in the sponge suction cup in parallel, the size of the through grooves is matched with that of the fuel pellets, and through holes are formed in the through grooves. A metal substrate is mounted at the tops of the sponge suckers, and through holes corresponding to the sponge suckers in position and number are formed in the surface of the metal substrate; a metal cover plate is mounted above the metal substrate, a square cavity is formed after the metal cover plate and the metal substrate are combined, and a vacuum tube connector is formed in the top of the metal cover plate. According to the utility model, through the semicircular through grooves in the sponge sucker, the small holes in the sponge sucker can be attached to the cylindrical surface of the nuclear fuel pellet on the premise that the sponge sucker is not compressed; meanwhile, the square inner cavity formed between the metal substrate and the metal cover plate can ensure that negative pressure airflow is smooth, and the square inner cavity serves as a buffering cavity to ensure that negative pressure is evenly distributed in all small holes of the metal substrate.

The present invention discloses a paint mist purification device for a spray booth, comprising an arc-shaped bracket, a box body and two symmetrically arranged bottom plates, and the present invention relates to the technical field of environmental protection equipment. The paint mist purification device for a spray booth adopts the arrangement of an arc-shaped bracket to install the purification device on the bracket, thereby reducing the occupied area and moving the position of the purification device. The purification device can be controlled to move according to the position of the spray painting, thereby improving the absorption effect of the paint mist and reducing the diffusion of the paint mist in the operation workshop. When the purification device is moving, it is divided into two situations: (1) During the spray painting period: the return air fan at the bottom of the box body blows up the sinking paint mist so that more of it is adsorbed on the surface of the industrial product, thereby reducing the waste of paint; (2) When the spray painting is stopped: at this time, the return air fan stops operating, and the suction fan inside the box body starts working to absorb the paint mist floating in the air into the box body for purification, thereby improving the environmental quality of the operation workshop.

The automatic shock absorber accessory polishing device comprises a mounting frame, a mounting frame is movably arranged on the inner side of the mounting frame, a first motor is fixedly arranged on the inner side of the mounting frame, and a polishing disc is arranged on the portion, located on the outer side of the mounting frame, of the power end of the first motor. Mounting plates are movably arranged on the two sides of the mounting frame, dust collectors are arranged on the inner sides of the two mounting plates, dust collection covers are fixedly arranged on the outer sides of the dust collectors, two collecting barrels are detachably arranged on the outer side of the mounting frame, telescopic hoses are arranged on the outer sides of the two collecting barrels, and the telescopic hoses penetrate through the mounting frame and extend to the inner side. The other end of the telescopic hose is positioned on the inner side of the mounting frame and is connected to the dust collector. By means of the simple installation mechanism, dust can be sucked more accurately, the problem that the dust removal effect is poor due to fixed installation of a traditional dust collection mechanism is solved, the dust treatment effect is improved, the practical effect is good, and the dust collection device is worthy of being used and popularized in the existing market.

The range hood comprises a shell, an oil fume inlet with an opening in the front side is formed in the rear portion of the shell, the oil fume inlet is located in the lower edge of the shell, a fume exhaust channel is formed in the shell, and the oil fume inlet is communicated with the fume exhaust channel; a flow guide plate is arranged on the inner side of the oil smoke inlet and is detachably connected with the shell; the upper end of the flow guide plate abuts against the inner wall of the rear side of the oil smoke inlet, the lower end of the flow guide plate is provided with a first folded edge extending from front to back, the first folded edge abuts against the inner bottom of the oil smoke inlet, the flow guide plate is fixed to the shell through at least one screw, and a screw rod part of each screw penetrates through the bottom of the shell and then is in threaded connection with the first folded edge; the flow guide plate in the filter can be detached, so that convenience can be brought to cleaning of oil stains adhered to the flow guide plate.

The invention discloses water conservancy and hydropower dam desilting equipment which aims at solving the problems that due to sludge hardening, suction is difficult, the suction effect is poor, the suction number is small, and the working efficiency of a desilting device is low. The desilting equipment comprises a cylindrical sewage collecting pipe with one closed end and further comprises at least one sludge suction assembly, each sludge suction assembly comprises a sludge suction pipe communicated with the sewage collecting pipe, a filter cover is arranged at a water inlet of each sludge suction pipe, and the filter covers can reduce the situation that large particles enter the sewage collecting pipes in the sludge suction process; the driving assembly comprises a driving shaft coaxially arranged with the sewage collecting pipe, the driving shaft is rotatably mounted in the sewage collecting pipe, and the driving assembly further comprises a driving structure for driving the driving shaft to rotate through water flow. And the working efficiency of the dredging device is low.

The invention discloses a pulp filtering device, comprising a filter cartridge, a liquid inlet pipe and a liquid outlet pipe are respectively installed on the side walls of the filter cartridge, a filter screen is movably installed in the filter cartridge, a sealing ring is fixed on the outside of the filter screen, the sealing ring is in sliding contact with the inner wall of the filter cartridge, a sleeve is fixed at the center of the filter screen, a hydraulic cylinder is installed on the top of the filter cartridge, a rotating motor is installed on the piston end of the hydraulic cylinder, an impeller is respectively installed on the outside of both ends of the sleeve through a bearing, the output end of the rotating motor is connected to the bearing, the impeller is in sliding contact with the surface of the filter screen, and a negative pressure cleaning mechanism matched with the impeller is respectively installed on the top and bottom of the filter cartridge. The invention can improve the deficiencies of the prior art, has a compact structure and high filtering efficiency.

The utility model discloses an environmental protection and energy saving type metal piece surface treatment device, including the dust absorption sleeve, the dust absorption sleeve inside is equipped with the annular dust inlet, two support plates are symmetrically installed to the dust absorption sleeve top, be provided with the polishing subassembly to the dust absorption sleeve inside, the dust absorption sleeve outside is installed with the dust absorption component that is connected with the dust absorption sleeve, the dust absorption sleeve outside is installed with the movable baffle for contacting the metal piece surface, a plurality of through slots are seted up to the movable baffle surface, the dust absorption sleeve outside is installed with the limit component that goes into the through slot. The utility model discloses in the polishing process, the dust absorption sleeve surrounds the polishing, and the dust inlet is opposite the polishing position, through starting the dust absorption component, makes the dust absorption sleeve produce the negative pressure, and then through the dust inlet suction produced the waste chip of polishing.

The invention belongs to the technical field of grooving machines, and particularly relates to an angle positioning device for a grooving machine, the angle positioning device comprises supporting side frames, a lower mounting plate, an upper mounting plate and a grooving assembly, the lower mounting plate is fixedly mounted at the lower end between the supporting side frames on the two sides, and the upper mounting plate is fixedly mounted at the top end between the supporting side frames on the two sides; and a main moving table is movably arranged on the upper mounting plate, a corner roller is rotatably mounted at the center of the main moving table, a first electric telescopic rod is fixedly connected to the bottom of the corner roller, a positioning plate is fixedly connected to the output end of the first electric telescopic rod, and the grooving assembly comprises a motor frame, a grooving motor, a cutting knife and a protective cover. According to the automatic grooving machine, when an inclined groove needs to be formed, the driving motor is started firstly before grooving, under transmission of the speed reducer, the corner roller rotates slowly according to the needed rotation, then the orientation of the cutting knife is changed, and therefore an inclined groove opening can be formed in a material, the application range is wider, and the adaptability is better.

The invention discloses solar panel aluminum profile frame machining and drilling equipment, and relates to the technical field of drilling, and the solar panel aluminum profile frame machining and drilling equipment comprises a composite mechanism. According to the solar panel aluminum profile frame machining and drilling equipment, through the design of a composite mechanism, a frame is placed on a fixing mechanism, materials are fixed through the fixing mechanism, shaking during operation is prevented, the stability of operation is kept, and the situation that the drilling precision is affected is avoided; when the drilling machine is used for drilling materials, enough drilling depth is kept for the materials, the linear module controls the drilling machine to lift and improve drilling details, and when the linear module drives the drilling machine to move towards the fixing mechanism and a drill bit drills the materials, the anti-deviation mechanism firstly makes contact with the surfaces of the materials, so that the pre-positioning effect is achieved, the drilling precision is improved, and deviation is prevented.

The application relates to the field of laser cutting, and particularly discloses a laser cutting device for automobile mudguards, which comprises a machine tool, a cross beam is slidably arranged on the machine tool, a cutting head is slidably and liftably arranged on the cross beam, a clamping piece for fixing a mudguard is arranged on the machine tool, an air suction pipe is arranged on the machine tool, a fan is arranged at the bottom of the machine tool, a threaded rod is rotatably arranged on the side wall of the cross beam, a fixing plate is threadedly connected to the threaded rod, the air suction pipe is arranged on the fixing plate, a synchronizing piece for driving the air suction pipe to move is arranged on the machine tool, and a lifting piece for lifting the air suction pipe is arranged on the machine tool. The application has the effects of strengthening the cooling effect on the cut mudguard, reducing the emission of toxic gas and smoke generated during cutting, and improving the safety of workers.

The invention relates to a vacuum belt dehydrator which comprises a rack, a belt transmission mechanism and filter cloth, the belt transmission mechanism is erected on the rack, the rack is rotationally connected with a filter cloth guide roller making contact with the filter cloth, the filter cloth is laid on an adhesive tape of the belt transmission mechanism, and the filter cloth is filled with a plurality of magnetic bodies. Magnetic steel is arranged on the two sides of the top of the rack in the length direction, a plurality of transverse rods are erected in the middle of the rack in the width direction, magnetic field intensity sensors are arranged on the transverse rods and located in the middles of the transverse rods, and adjustable magnetic coils are symmetrically arranged on the two sides of each magnetic field intensity sensor. The magnetic field adjusting system is electrically connected with the magnetic field intensity sensor and the adjustable magnetic coil, and the magnetic field adjusting system is used for controlling the magnitude and the direction of exciting current of the adjustable magnetic coil so as to ensure that the filter cloth is kept in the middle of the upper portion of the belt transmission mechanism in the width direction, and the filter cloth can be detected in real time; and after the filter cloth deviates, a response is immediately made to automatically correct the deviation.

The utility model relates to the technical field of garbage cleaning equipment, and discloses an automatic garbage cleaning device which comprises a moving trolley and a cleaning machine body, the cleaning machine body is communicated with a suction pipe, the other end of the suction pipe is located at the front end of the moving trolley, and a swing rod and a power assembly are arranged at the front end of the moving trolley. The end, away from the sweeper body, of the suction pipe is connected with the swing rod, a cleaning mechanism is further arranged at the front end, located in front of the suction pipe, of the moving trolley and comprises a supporting assembly and a rotating roller, a plurality of brushes are fixedly connected to the surface of the rotating roller, and a transmission mechanism is further arranged between the rotating roller and the moving trolley. The campus fallen leaf cleaning device has the advantages of being easy to use, convenient to operate, good in cleaning effect on fallen leaves and the like, high in cleaning efficiency and capable of greatly reducing cleaning work of students on campus fallen leaves in autumn and winter.

This invention provides a prosthesis removal device for knee replacement revision surgery based on a high-frequency electrosurgical unit, belonging to the field of medical device technology. It includes a high-frequency electrosurgical pen tip, with a high-frequency electrosurgical pen body fixedly connected to the top of the tip. A connecting plate is located at the top of the pen body, and a first negative pressure tube is mounted on the connecting plate, passing through it. A fixing cap is threadedly connected to the top of the pen body, movably sleeved with the first negative pressure tube, and positioned at the top of the pen body and fitting against the connecting plate. The bottom end of the first negative pressure tube extends to the outside of the bottom end of the pen body, and a suction component is located at the lower end of the tube. This invention uses the high-frequency electrosurgical pen tip to heat and melt the bone cement in the prosthesis, reducing the difficulty of removing the main bone from the prosthesis and lowering the requirements for operator experience and skill. The suction component absorbs the melted bone cement.

The invention relates to the technical field of chemical material preparation and processing, and discloses a nylon 6 in-situ colored slice and a preparation method thereof, comprising the following steps: adding carbon black, a reaction aid, a pH aid, and a coupling agent to deionized water in a certain proportion, grinding the carbon black with a grinding device to obtain a self-dispersing carbon black slurry; mixing the prepared self-dispersing carbon black slurry with a polyamide precursor caprolactam monomer according to a carbon black and caprolactam mass percentage of 0.1 to 50%, using a polymerization process to in-situ polymerize and color nylon 6, and then through a belt casting and pelletizing process to obtain a nylon 6 in-situ colored slice. This scheme has the beneficial effect of re-adsorbing the raw material extruded from the grinding area during the grinding process and putting it into the grinding area for re-grinding, solving the problem that the raw material extruded outside the grinding disc is not fully ground, which will cause its particle size to be too large and not suitable for preparing nylon 6 in-situ colored slices.

The invention provides an oily sewage treatment device, which relates to the technical field of sewage treatment, and comprises an oily sewage treatment shell; two driving linkage racks are fixedly installed on the top of the oily sewage treatment shell; the mounting mechanism is provided with two groups, and the two mounting mechanisms are mounted on the front and rear sides of the oily sewage treatment shell; the oil suction mechanism is mounted on the two mounting mechanisms, and the oil suction mechanism is used to suck the oil on the top of the sewage; the sewage treatment mechanism is mounted on the two mounting mechanisms, and the sewage treatment mechanism is located above the oil suction mechanism, and the sewage treatment mechanism is used to add sewage treatment agent to the sewage; in the invention, the two driving linkage racks can drive the circular connecting shaft to rotate, so that different positions of the oil suction cotton roller are convenient to contact with the oil, thereby improving the oil suction effect; and solves the problem that the oil on the top of the sewage cannot be automatically sucked when the sewage treatment agent is added, thereby reducing the sewage treatment effect.

The utility model provides a range hood with an exhaust fume collecting hood, which comprises a shell, an oil fume inlet with an opening in the front side is arranged at the rear part of the shell, the oil fume inlet is positioned at the lower edge of the shell, an exhaust fume discharge channel is arranged inside the shell, the range hood further comprises the exhaust fume collecting hood, and the exhaust fume collecting hood is fixed inside the shell. The lower end of the exhaust fume collecting hood is connected with the upper end of the oil fume inlet; the upper end of the exhaust fume collecting hood is connected with the lower end of the fume exhaust channel; the left side wall and the right side wall of the lower portion of the exhaust fume collecting hood expand outwards from top to bottom to form a horn-mouth-shaped structure. According to the range hood, the exhaust fume collecting hood is arranged, and the left side wall and the right side wall of the lower part of the exhaust fume collecting hood are expanded outwards from top to bottom to form the horn-mouth-shaped structure, so that the exhaust fume collecting hood can play a role in centralizing and guiding the oil fume, and the passing resistance of the oil fume can be effectively reduced so as to improve the oil fume suction effect of the range hood; the exhaust fume collecting hood can also isolate electrical components in the range hood, so that the electrical components in the range hood are prevented from being damaged by oil fume.

The utility model relates to the field of laboratory equipment, and discloses a laboratory fume hood exhaust duct, which comprises a laboratory fume hood mounting part, an exhaust duct and a ventilation duct, the adjusting and maintaining mechanism comprises a hydraulic cylinder, a push plate, an exhaust pipe, an exhaust hood, a box body, an air bag, an abutting block, a guide pipe, a piston piece, a bottom plate and a vertical plate. The hydraulic cylinder is fixedly installed at the bottom of the laboratory fume hood installation part, a hydraulic rod of the hydraulic cylinder is fixedly connected with the push plate, the exhaust pipe is fixedly connected with the push plate, the exhaust hood is fixedly connected with the exhaust pipe, the box body is fixedly installed on the exhaust hood, and the air bag is fixedly installed on the inner wall of one side of the box body. The smoke exhaust device has the following advantages and effects that when a large amount of smoke is generated by an experimental object, the exhaust hood can be quickly moved downwards to be close to the smoke position, so that the smoke suction capacity is enhanced, smoke pollutants are discharged in time, and the filter plate and the activated carbon plate are extremely convenient to maintain.

The invention relates to the technical field of agriculture and forestry tools and instruments, and provides forest sustainable management tree growth trunk fixing auxiliary equipment and method.The forest sustainable management tree growth trunk fixing auxiliary equipment comprises a fixing plate and an extending plate, a first connecting plate is rotationally connected to the fixing plate, a clamping rod is slidably connected to the first connecting plate in a limiting mode, and a two-way threaded rod is fixedly connected to a rotating rod; the two-way threaded rod is rotationally connected into the fixing plate, a moving block is in threaded connection with the two-way threaded rod, a push plate is rotationally connected with the moving block, a clamping plate is rotationally connected with the other end of the push plate, a second connecting plate is rotationally connected with the fixing plate, and a supporting plate is rotationally connected with the other end of the second connecting plate. A material box is fixedly connected to the supporting plate, and a feeding pipe is fixedly connected to the material box. By means of the technical scheme, the problem that in the prior art, a forest can continuously operate tree growth trunk fixing auxiliary equipment, and the equipment is inconvenient to be conveniently inserted into soil for limiting use is solved.