98results about How to "Play a dredging role" patented technology

The invention relates to environment-friendly type river and lake controlling and cleaning equipment. The environment-friendly type river and lake controlling and cleaning equipment comprises a boat body, power devices, a storage slot, a compression device, movable gripping devices, cut-off devices, a salvaging device and a conveying device, wherein the power devices are symmetrically mounted at the left side and the right side behind the boat body separately along the longitudinal central axis of the boat body; the compression device is positioned above the storage slot; the movable gripping devices are separately positioned at the left side and the right side of the compression device; the cut-off devices are positioned at the outer sides of the movable gripping devices; the salvaging device is positioned in front of the boat body; and the conveying device is positioned between the salvaging device and the storage slot. The environment-friendly type river and lake controlling and cleaning equipment integrates the functions of floating force adjusting, water-surface travelling, waste compacting, aquatic plant gripping, garbage salvaging, garbage conveying and the like, realizes the functions of eliminating aquatic plants in rivers and lakes as well as floating waste on the water surface, achieves the effect of dredging the rivers and the lakes, keeps water in the rivers and the lakes clean, is high in integral mechanical degree, is complete in function and is high in operating efficiency.

The invention discloses an alga control method for a freshwater environment based on cultivation of barracudas and mullets, relating to a water treatment method. Aiming at solving the problem that algae can not be stably and thoroughly controlled in a eutrophic fresh water body, the method comprises the following steps: at least introducing one species of estuarine / marine fishes, such as barracudas and mullets which can only be propagated in sea water, and carrying out desalination processing before cultivation to enable the barracudas and the mullets to be adapted to a freshwater living environment, wherein the mesh size in the large water body ensures whether the cultivated fishes can escape; dividing or mixing according to different ages, carrying out culture in enclosure in girds by meshes, and simultaneously cultivating and propagating silver carps, bighead carps, other local fishes and local shellfish; and propagating local common aquatic plants. Thus, the fishes can be fed on the algae in a filter-feeding mode and simultaneously swallow detritus substances, thereby achieving the purpose of thoroughly purifying the water environment. By harvesting the cultivated and propagated aquatic organisms to remove nitrogen / phosphorus nutrients in water and humus in bed material from the water body, the method disclosed by the invention greatly improves the water quality of the cultivation water body.

The invention relates to an artificial antibody type titanium dioxide (TiO2) / boron-doped diamond (BDD) membrane electrode and a preparation method thereof, the electrode is in p-n heterostructure, the electrode uses boron-doped diamond (BDD) as a substrate, uniform dense fusiform TiO2 particles are on the surface of the BDD, the particle size of the TiO2 particles is 50-100nm, a modification layer with a thickness of 5 to 10 mum is formed by the densely covered TiO2 particles; the preparation method of the artificial antibody type titanium dioxide (TiO2) / boron-doped diamond (BDD) membrane electrode is as follows: using of the boron-doped diamond as the substrate, low temperature liquid phase deposition of TiO2 with a target pollutant molecular imprinting on the surface of the substrate, and removal of target pollutant molecules. Compared with the prior art, the artificial antibody type titanium dioxide (TiO2) / boron-doped diamond (BDD) membrane electrode prepared by the method both has the p-n heterostructure and target pollutant molecular recognition ability, has excellent photoelectrocatalytic integrative performance and high selectivity degradation ability, has the advantages of simple preparation process, can be effectively used for removal of organic pollutants with low concentration, low tendency to biochemistry and high toxicity, and has extensive economic and social benefits.

The invention belongs to the technical field of waste gas processing devices, and particularly relates to a plasma waste gas processing device which comprises a base. The four corners of the top of the base are each fixedly provided with a box body. The inner wall of the bottom of each box body is fixedly provided with a first spring. The top end of each first spring is fixedly provided with a supporting plate. Vertical rods are symmetrically fixed to the inner wall of the bottom of each box body. The supporting plates are slidingly connected to the outer side walls of the vertical rods. Transverse rods are fixed to the inner walls of the two sides of each box body respectively. A fixed plate is fixed to one end of each transverse rod. A slide plate is slidingly connected with the outer side wall of each transverse rod. A second spring sleeves the outside of each transverse rod. By arranging partition plates in a shell, dividing the shell into a first chamber and a second chamber and arranging a filtering mesh plate in the first chamber, when waste gas passes through the first chamber, large-particle-size dust in the waste gas can be left, and therefore the subsequent purifying effect can be conveniently improved.

The invention discloses a livestock and poultry culture feces recycling equipment. The livestock and poultry culture feces recycling equipment comprises a pedestal; the upper part of the pedestal is provided with a housing; the bottom four corners of the housing are fixedly provided with supporting legs; the bottom of each supporting leg is fixedly connected with the top of the pedestal; a feed hopper is fixedly arranged on the top of the housing, and the top of the housing is penetrated by the feed hopper; the top of the feed hopper is connected with a hopper cover through a hinge in rotationconnection; the livestock and poultry culture feces recycling equipment is provided with stirring blades, a driving gear, a servo motor, a belt, and an electric heating block, so that rapid drying ofpig dung treated through dry wet separation can be realized; a gear motor, a half gear, a vertical rod, a top plate, a connecting plate, a spring, a toothed rack plate, a connecting rod, a T shaped block, and a rapping hammer are adopted, so that blocking of the feed hopper can be prevented; a driving motor and a spiral blade are adopted, so that smooth discharging of dried pig dung can be realized; a blower fan, a water tank, and an active carbon plate are adopted, so that gas purification effect is achieved; a tank body and a copper conduit are adopted, so that recycling of heat energy in gas is realized.

The invention relates to the technical field of feed processing, in particular to granulation equipment for pig feed processing. The equipment comprises a feed hopper, a discharge box and a horizontally arranged granulation cylinder, a stirring shaft is arranged inside the granulation cylinder, crushing teeth and spiral blades are fixed on the outer wall of the stirring shaft, the outside of the stirring shaft is connected with the output end of a first motor through a bearing seat, a granulation plate is fixed at a right port of the granulation cylinder, forming holes are uniformly formed inthe surface of the granulation plate, a motor cover and a cleaning cylinder are arranged on the right side of the granulation cylinder, a second motor is arranged in the motor cover, a rotating shaftis arranged at the output end of the second motor, a blade is fixed on the outer wall of the rotating shaft, and a blockage removing mechanism is arranged in the cleaning cylinder; the granulation cylinder is fixed at the top end of the discharge box, a discharge channel is arranged in the discharge box, a plurality of layers of blanking funnels are fixed in the discharge channel, and a dischargehopper is fixed at the bottom end of the discharge channel. The equipment can dredge the forming holes in the granulation plate and has a drying effect on the granulated feed.

The invention discloses a pneumatic anti-clogging cooling device of a biomass particle granulator ring mold. The device is characterized by comprising a forced air supply pipe (6) and air supply branch pipes (7), wherein the forced air supply pipe (6) is annular, a plurality of air supply branch pipes (7) communicated with the forced air supply pipe (6) are axially arranged on the forced air supply pipe (6), and the air supply branch pipes (7) are communicated with the interior of a ring mold (8) of a granulator (1). The air is directly and forcibly circulated from the interior of the ring mold to the outside by means of mold holes of the ring mold, and the air cooling effect is direct and thorough, so overheating of the ring mold is radically avoided; and meanwhile, the compressed air can impact the mold holes of the ring mold to play a role in dredging and blow away the powder deposited at the mold holes of the ring mold so as to effectively avoid clogging.

The invention relates to a demagnetizer for electronic information equipment, in particular to an sufficient demagnetizer for electronic information equipment. The sufficient demagnetizer for the electronic information equipment is sufficient in demagnetizing and comprises an outer frame, a demagnetizing coil, an inner frame, a filter screen, a guide rod, a first spring, a pressing plate, a lifting rod, a mounting plate, a swing plate, a second spring, feeding hoppers and the like. The inner frame is welded in the outer frame, the demagnetizing coil is uniformly adhered in the outer frame, the feeding hoppers are arranged at the top centers of the outer frame and the inner frame, the front walls of the feeding hoppers are connected with third bearing blocks in a bolted connection mode, and a fixing block is welded on the right side of the top of the outer frame. The electronic information equipment is poured into the inner frame by the feeding hoppers, the electrified demagnetizing coil generates a magnetic field for the electronic information equipment in the inner frame, and further the electronic information equipment is demagnetized and destroyed.

The invention discloses a treatment method and device adopted after blockage of an air conditioner throttling device and equipment. The treatment method comprises the steps that if a trigger signal indicating blockage of the air conditioner throttling device is detected, emergency dredging treatment is conducted on the throttling device; a capacity output value of an air conditioner is obtained; and if the capacity output value of the air conditioner reaches a capacity output threshold value formed under the current operation mode, the air conditioner is controlled to operate continuously. Bymeans of the treatment method and device and the equipment, when the throttling device adopting an electronic expansion valve is blocked, the air conditioner can operate continuously under the condition that maintenance is not needed.

The invention relates to the technical field of biomass particle production, in particular to a biomass fuel forming preparation device, wherein two ends of a first roller shaft are rotatably connected at the left ends of two support frames respectively through mounted bearings, two ends of a second roller shaft are rotatably connected at the right ends of the two support frames respectively through mounted bearings; the rollers are fixedly arranged between the two support frames, the upper end of the rollers is provided with a circular feeding inlet, the lower end of the rollers is hollowed out, a conveying belt is arranged below the rollers, and the left end and the right end of the lower end of the rollers are respectively provided with a vertical chute. When the filler is too much or thick, the feeding stops, the machine is prevented from being overloaded, and the phenomenon of jamming of the machine caused by overload is prevented; after the processing is finished, the raw material can be discharged in time, so that a large amount of finished products are prevented from being extruded, the use is convenient, the performance is stable, the working efficiency is improved, the labor intensity of operators is reduced, the production cost is reduced, and the service life of the machine is prolonged.

The invention discloses a medicinal guide wire. The body of the guide wire is a wire body made of metal material, a smooth medicinal hydrophilic coating is uniformly distributed on the surface of the body, and a medicament coating with anti-inflammatory and anti-sticking effects is arranged outside the medicinal hydrophilic coating. The axial length of the medicament coating is 3 / 4 to 1 / 3 of the length of the guide wire. The rear end of the guide wire is coaxially and fixedly provided with a cylindrical connecting head, an external thread is formed on the connecting head, and a nut is screwed with the connecting head. The nut and the connecting head are made of medicinal plastics. In an operation, the guide wire can synchronously play an anti-inflammatory and anti-sticking role of the medicament coating besides the effects of dredging and inner support on sticking and stenosis of an affected part, continually release a medicament in the medicament coating at the affected part and effectively improve the treatment condition of the affected part so that the treatment effect is good. Therefore, the guide wire has the advantage of good treatment effect.

The invention relates to continuous river channel dredging equipment. The continuous river channel dredging equipment comprises a ship body, wherein a sludge box is arranged on the ship body; the ship body is provided with a fixing frame at one side of the ship body; a fixing rod is arranged on the fixing frame and extends in the vertical direction; a fixing plate is arranged on the fixing rod, the fixing plate is arranged in the width direction of the ship body, and the fixing plate is provided with smashing assemblies for smashing sludge and a dredging assembly for cleaning the sludge; and the fixing frame is provided with a lifting device for driving the fixing rod to ascend and descend. The dredging equipment has the effect of conveniently improving the dredging efficiency.

The invention discloses an anti-blocking type slag discharging system for a slag scraper. The anti-blocking type slag discharging system comprises a slag collecting box; the inner wall of the slag collecting box is fixedly connected with a first circular ring; the inner wall of the first circular ring is fixedly connected with a second circular ring through a fixing rod; a filter screen is fixedlyconnected between the first circular ring and the second circular ring, the inner wall of the second circular ring is slidably connected with a slag discharging cylinder, the lower end of the slag discharging cylinder penetrates through the lower end of the slag collecting box and is slidably connected with the side wall of the slag collecting box, the slag discharging cylinder and the inner wallof the slag collecting box form a drainage chamber, and a driving mechanism for driving the slag discharging cylinder to rotate is mounted in the drainage chamber. When the gravity of sewage in a V-shaped plate reaches the critical value of a pressure release valve, sewage in the V-shaped plate is rapidly sprayed out from the pressure release valve, a water wheel is driven to rapidly rotate, andthen the slag discharging cylinder is driven to rapidly rotate, so that a permanent magnet column periodically skims over the lower end of an ejector pin, the ejector pin continuously ejects upwards to dredge waste slag, the blockage phenomenon is effectively prevented, and sewage treatment is accelerated.

The invention relates to an anti-blockage hydraulic classifier which comprises a classifying cavity. A feeding pipe and an overflow pipe are mounted on the upper portion of the classifying cavity. Water inlets and a discharge outlet are formed in the bottom of the classifying cavity. A screen plate is fixedly arranged in the classifying cavity. A discharge barrel is mounted between the screen plate and the discharge outlet, and the upper end of the discharge barrel penetrates through the screen plate. The discharge barrel can freely rotate around the own axis. Spiral flow-guiding lines are formed on the inner wall of the discharge barrel, and transmission stripes are formed on the outer wall of the discharge barrel. Hydraulic turbines are further mounted in the classifying cavity and located below the screen plate, and a rotating shaft of each hydraulic turbine coincides with the axis of the corresponding water inlet. The outer walls of the hydraulic turbines are engaged with the outer wall of the discharge barrel. According to the classifier, the discharge outlet can be effectively prevented from being blocked, material discharge is promoted, and long-term stable work of the classifier is effectively guaranteed.

The invention relates to the technical field of biomass particle production, in particular to a biomass fuel forming device. Conveying rollers are fixedly connected to a first roller shaft and a second roller shaft, a conveying belt is connected between the two conveying rollers, two ends of the first roller shaft are rotationally connected to left ends of two supporting frames through plummer blocks respectively, and two ends of the second roller shaft are rotationally connected to right ends of the two supporting frames through plummer blocks respectively. A driving pulley is fixedly connected to the front end of the first roller shaft, and the front end of the first roller shaft is fixedly connected to an output shaft of a motor. When packing is excessive in quantity and thickness, feeding is halted to prevent jamming caused by overloading; after processing, raw materials can be timely discharged to avoid extrusion of a great quantity of finished products. In addition, convenience in use, stability in performance, operating efficiency improvement and production cost reduction are realized, labor intensity of operating personnel is relieved, and the service life of the device isprolonged.

The invention relates to the technical field of tunnel drilling measurement, in particular to a hole depth measuring device on an anchor rod trolley. The device comprises a measuring mechanism, which is used for measuring the depth of an anchor rod hole and comprises an outer cylinder and an inner cylinder with length scales, wherein one end of the inner cylinder is inserted and slidably connected in the outer cylinder; a soot blowing structure, which is arranged on the side wall of the outer cylinder, wherein the inner cylinder is pneumatically connected with the soot blowing structure, and the soot blowing structure blows away dust adhered to the outer side wall of the inner cylinder under the driving of the inner cylinder; and a slag removing and dredging mechanism, which is arranged at one end, located outside the outer cylinder, of the inner cylinder, and is used for conducting dredging and slag removing on the measured anchor rod hole. According to the hole depth measuring device on the anchor rod trolley, the effect of dredging an anchor rod hole is achieved, protrusions and the like on the inner wall of the anchor rod hole are scraped away, meanwhile, slag accumulated at the bottom of the hole is blown away in an air blowing mode, the slag collection phenomenon is avoided, and therefore the accuracy of anchor rod hole depth measurement is further improved.

The invention discloses a bakelite injection molding device with functions of automatic feeding and products out of a mold automatically. The bakelite injection molding device comprises an injection molding machine body, the upper end of the injection molding machine body is provided with a static workbench and a moving workbench, the static workbench is provided with a material storage box, the lower end of the material storage box communicates with a material feeding box, the material feeding box communicates with a material inlet of the static workbench and is internally provided with a sliding rail, the sliding rail is internally and slidably connected with a sliding block, the sliding block is fixedly provided with a material blocking plate, the material blocking plate is fixedly provided with a rectangular plate, one side of the rectangular plate is provided with an air cylinder installation plate, the air cylinder installation plate is fixedly provided with a first air cylinder,a piston rod of the first air cylinder and the rectangular plate are fixed together, the material storage box is internally provided with a stirring mechanism, the moving workbench is fixedly provided with a moving mold, and the moving mold is internally provided with a material jacking mechanism. By means of the bakelite injection molding device with the functions of automatic feeding and the products out of the mold automatically, automatic feeding is realized, no burning dust is generated in the feeding process, the bakelite injection molding device is environmentally friendly and efficient, meanwhile, automatic material discharge is realized, and the safety is improved.

A method for controlling algae in a freshwater pond by cultivating striped mullets relates to a method for treating water. Aiming at the problem of frequent blooming of blue green algae in a eutrophic pond aquiculture water body, the striped mullets which belong to river mouth marine fishes and can only be reproduced in sea water are introduced to filter-feed on the algae and swallow detritus substances, so that the aim of continuously and thoroughly purifying a freshwater pond aquiculture environment is fulfilled. The method is characterized by comprising the following steps of: performing gradual desalting treatment on the striped mullets before cultivation to make the striped mullets adapt to the living environment of freshwater, wherein the age of each striped mullet is less than 24 months; transferring the striped mullets into a pond required to be purified by a keeping-alive transportation method; cultivating the striped mullets in the eutrophic freshwater pond; and catching thelarge striped mullets and keeping the small striped mullets year by year according to the density of the striped mullets in a water environment. By the method for controlling the algae in the freshwater pond by cultivating the striped mullets, the content of the algae in the eutrophic freshwater pond aquiculture water body is effectively reduced, nitrogen and phosphorus nutritive salts in the water and humus in a bottom material are brought out of the water body by harvesting reproduced striped mullets, the quality of the water body is greatly improved, and algae blooming is controlled.

The invention provides a medical guide wire. The guide wire is a wire body made of a metal material, wherein a smooth hydrophilic coating is uniformly distributed on the surface of the wire body; a medicinal coating with anti-inflammation and anti-adhesion effects is arranged outside the medicinal hydrophilic coating; the axial length of the medicinal coating is three fourths to one third of the length of the guide wire; a cylindrical connector is coaxially fixedly arranged at the rear end of the guide wire and is provided with an external thread, and a nut is in screwed connection with the connector; and the nut and the connector are made of medical plastic. During an operation, the guide wire has a dredging effect and an internal supporting effect on adhesion and stenosis of an affected part, the anti-inflammation and anti-adhesion effects of the medicinal coating can be achieved, and drugs in the medicinal coating can be constantly released on the affected part, so that the treatment condition of the affected part can be effectively improved, and the treatment effect is better. Therefore, the guide wire has the advantage of excellent treatment effect.

The invention belongs to the technical field of preparation of seven-ingredient pomegranate peel powder, and particularly relates to seven-ingredient pomegranate peel powder for treating swine colibacillosis. According to the scheme, the seven-ingredient pomegranate peel powder comprises a collecting frame and a mixing and extruding frame, the outer walls of the two sides of the mixing and extruding frame are fixedly connected with the same top frame, and the inner wall of the top of the top frame is fixedly connected with two first air cylinders; and the outer walls of the bottoms of the two first air cylinders are fixedly connected with the same squeezing plate, and the outer wall of the bottom of the squeezing plate is fixedly connected with squeezing parts at equal intervals. By arranging a wind power dispersing and mixing assembly, in the process that medicine powder falls down from screen holes in a screen, an air pump is started, the air pump blows a large amount of air into all hollow rods, the air is exhausted through air holes, the medicine powder in the falling process is blown away by wind power, and the medicine powder located in all spaces is dispersed and recombined through the hollow rods distributed in disorder; and the mixing degree of the medicine powder is further improved, and the medicine effect of the prepared seven-ingredient pomegranate peel powder is ensured.

The invention discloses a garbage filtering device for domestic sewage treatment, which comprises a shell, a filter plate is fixedly arranged in the shell, the end part of the filter plate is rotatably connected with a fixed shaft, the lower side of the fixed shaft is fixedly provided with a top plate, the left side of the fixed shaft is fixedly provided with a connecting plate, and the surface of the filter plate is provided with uniformly distributed water filtering holes; conical top blocks matched with the water filtering holes are fixedly mounted on the surface of the top plate, a first groove is formed in the surface of the filtering plate, a pushing block is slidably connected into the first groove, limiting columns are fixedly mounted on the front side and the rear side of the pushing block, and a limiting groove is formed in the side wall of the groove. The section of the push block and the section of the first groove are in a parallelogram shape, so that the push block obliquely stretches out of the filter plate when being pushed by the strip-shaped top block, oblique pushing force is exerted on large garbage covering the push block, the garbage better slides into the collecting box, and the situation that the water filtering efficiency is low due to the fact that the garbage is accumulated on the surface of the filter plate is avoided.

The invention discloses an agricultural energy-saving anti-clogging drip irrigation device, which comprises a water inlet and a second pipeline. The left end of the water inlet is connected with a first pipeline, and a rocker is arranged on the first pipeline. It is connected with the spring, and the left end of the spring is provided with a transmission shaft, the inside of the second pipeline is provided with a water hole, and a filter screen is arranged around the lower end of the water hole. In this agricultural energy-saving and anti-clogging drip irrigation device, the thimbles are evenly distributed on the first fixed plate to prevent the impurities in the first pipeline from clogging the second fixed plate and play a dredging role. The water holes are evenly distributed on the second pipeline The bottom of the bottom, so that the plants can be irrigated more comprehensively, which is conducive to uniform growth, and also has the effect of saving water resources. blockage while avoiding high water requirements and having the effect of reducing costs.

The invention relates to a feeding device, in particular to a quantitative feeding device for mixed powder processing. The technical problem to be solved is to provide the quantitative feeding device for mixed powder processing, which can avoid being affected with damp and reduce manual workload. According to the technical scheme, the quantitative feeding device for mixed powder processing comprises a first supporting frame, a first protection frame, a containing table, a distance sensor, a fixing frame, a discharging box, a heating and drying mechanism, an anti-solidification mechanism and the like, the first protection frame is arranged on the upper portion of the first supporting frame, and the containing table is arranged on the front side of the first protection frame; a first distance sensor is arranged on the right side of the lower portion of the placing table, fixing frames are arranged on the upper portion of the placing table in a bilateral symmetry mode, a discharging box is arranged between the upper portions of the fixing frames, a heating and drying mechanism is arranged on the upper portion of the placing table, and an anti-solidification mechanism is arranged between the discharging box and the placing table. The fixing device rotates to make contact with the material containing tool, the material containing tool is limited, and the situation that when mixed powder falls down, the material containing tool is unstable and topples over is avoided.

The invention relates to a method for purifying water systems of mountain landscape lakes. The method includes measures of 1), leading mountain water sources to settling and filtering devices via pipelines, settling impurities, filtering sandy soil and then draining the mountain water sources into the mountain landscape lakes; 2), arranging front pools and rear pools, respectively connecting the front pools and the rear pools with municipal blow-down pipelines, communicating the mountain landscape lakes with the rear pools and connecting the rear pools with the municipal blow-down pipelines by water level adjusting pipes; 3), growing a circle of water retention plants on a peripheral mountain slope of each mountain landscape lake, and arranging a circle of passages around each mountain landscape lake on a lakeside wetland of the mountain landscape lake; 4), releasing algae eating insects in lake surface regions of the mountain landscape lakes, growing submerged plants in lakebeds, releasing benthic organisms and constructing 'algae eating insect-submerged plant-benthic organism' coexistence ecology. Main fillers for roadbeds include cobblestone and sand, and water-permeable geotextile is arranged under the roadbeds. The method has the advantage that the water systems of the mountain landscape lakes can be purified by the aid of the method and have flood discharging capacity.

The invention relates to the technical field of medical instruments, in particular to a gynecological lifting limb assistant support device, comprising a support plate, a top plate, a first electric push bar, a sliding plate, a rubber plate, a second electric push bar, a connection block, an arc rubber plate and a drum. The support plate is connected with the top plate through the first electric push bar; the sliding plate is slidably connected to the rear left of the upper end face of the top plate; the top of the sliding plate is connected with the rubber plate right above the sliding platethrough springs; the free end of the second electric push bar is connected with the connection block; the bottom of the connection block is connected with the arc rubber plate via a spring. The mounting height of the top plate can be adjusted by controlling telescoping of the first electric push bar; by adjusting the second electric push bar to telescope, a plurality of ball protrusions arranged peripherally on the inner wall of the arc rubber plate provide certain dredging action upon a patient's leg venous return; ball protrusions on the surface of the drum can dredge sole collaterals for the patient's soles.

The invention relates to a fish pond fitting, in particular to an automatic dredging type fish pond drain valve. The drain valve consists of a pull ring, a dredging needle, a front tube, a pushing spring, a rotary fin, a tail tube, a valve shell, a knob, a valve core, a reset spring, a valve shell hole, a valve core hole, a magnet, a front snap ring, a central snap ring and a tail snap ring, wherein the valve shell is hollow sphere-shaped; the valve core is positioned in the valve shell and is in movable fit with the valve shell; the dredging needle, the rotary fin and the magnet together form a dredging rod; one end of the dredging needle is provided with the pull ring which is connected with the dredging needle, the central part of the dredging needle is provided with the rotary fin which is integrated with the dredging needle, and the other end of the dredging needle is segment-shaped; and a disc-shaped magnet is glued to a plane end of a segment. The automatic dredging type fish pond drain valve can greatly improve the drainage efficiency of the fish pond and reduce the probability of blockage of drainage pipelines.

The invention discloses equipment specially used for filling a seedling growing plate of salt-tolerance rice with mud. The equipment comprises a mixing cylinder, a first conveying mechanism, a second conveying mechanism and a third conveying mechanism; a feeding port is formed in the upper end of the mixing cylinder, and a discharging port is formed in the bottom of the mixing cylinder; the first conveying mechanism is located at the lower side of the discharging port, the third conveying mechanism is located at the upper end of the feeding port, the second conveying mechanism is aslant arranged, one end of the second conveying mechanism is located at the upper end of the feeding port, a smashing mechanism is arranged at the portion, close to the feeding port, of the mixing cylinder, and a mixing mechanism and a water inlet pipe are arranged in the middle of the mixing cylinder. According to the equipment, the design of mechanical filling of the mud is adopted, labor is effectively replaced, and batched, industrialized and quantified work is achieved; through a gap spacing mechanism, gap discharging of the mud is achieved; meanwhile, through the further utilization of a quantitative discharging mechanism, the mud quantitatively discharged, and then the seedling growing plate is filled with sufficient and quantitative mud.

The invention discloses an environment-friendly treatment and recycling method for metallurgical waste residues. A crushing and grinding device is adopted in the environment-friendly treatment and recycling method for the metallurgical waste residues, and comprises a working box, a first-stage crushing mechanism, a second-stage crushing mechanism, a grinding mechanism and a material leaking plate.The problems that in the traditional metallurgical waste residue recycling and treatment process, a traditional machining mode cannot conduct crushing and grinding integrated machining treatment on metallurgical waste residues, grinding machining needs to be conducted after the metallurgical waste residues are crushed in a unified mode, the metallurgical waste residue treatment efficiency is affected accordingly, besides, sieve holes are easily blocked by ground particles in the traditional grinding machining process, consequently, smooth grinding operation is affected, metallurgical waste residues are crushed singly in a traditional crushing mode, the particle size of the crushed waste residues cannot be guaranteed, and subsequent grinding operation is affected are solved.

The invention belongs to the technical field of building construction equipment, and particularly relates to a building construction concrete spraying unit with a protection mechanism. The building construction concrete spraying unit with a protection mechanism aims at solving the problems that a pipeline of an existing concrete spraying unit is prone to blockage, the protection effect is poor, the use effect of the concrete spraying unit is poor, and when a spraying pipe is blocked, the concrete spraying unit needs to be shut down and unblocked, and use is not facilitated. The building construction concrete spraying unit with the protection mechanism comprises a bottom plate; a conveying pipe is located above the bottom plate and is connected with a fixed box; an anti-blocking assembly is installed in the fixed box; a first spraying pipe and a second spraying pipe are installed on the conveying pipe; spraying heads are installed at the tail ends of the first spraying pipe and the second spraying pipe; and a cleaning assembly is mounted on each spraying head. According to the concrete spraying unit, the interior of the conveying pipe is cleaned through the anti-blocking assembly, blockages blocked in the spraying pipes are loosened through a vibration assembly, materials in the spraying heads are removed through the cleaning assemblies, the first spraying pipe and the second spraying pipe are standby for each other, and the protection effect and the use effect of the concrete spraying unit are improved.

The invention discloses a rubber raw material crushing device for data line production. The rubber raw material crushing device for the data line production comprises a crushing box, fixing frames arefixedly connected to the inner walls of the two sides of the crushing box correspondingly, air blowers are fixedly connected to the outer walls of the tops of the two fixing frames correspondingly, afixing frame is fixedly connected to the inner wall of the crushing box, and a crushing mechanism is arranged in the fixing frame. The inner wall of the fixing frame close to the bottom end is fixedly connected with a screen plate. According to the rubber raw material crushing device for the data line production, by arranging a screen drum, the air blowers and air plates, when rubber raw materials are crushed, the crushing mechanism crushes the rubber raw materials, in the crushing process, the air blowers introduce air into the air plates and blow the air to the screen plate through air holes, so that the crushed rubber raw materials accumulated on the screen plate fly up, and the crushing mechanism performs secondary crushing operation on the crushed rubber raw materials; and the air plays a role in dredging the screen plate, the rubber raw materials are prevented from blocking screen holes, the crushing effect of the rubber raw materials is improved through secondary crushing and screening, and it is ensured that the subsequently-obtained crushed rubber raw materials meet the requirements.