116results about How to "Easy to eradicate" patented technology

The invention relates to an environment-friendly snow melting agent and a preparation method of the snow melting agent, and belongs to the field of the snow melting agents. The snow melting agent is prepared from acetates and chlorine salts with low corrosivity as the main raw materials by mixing acetates including potassium acetate, magnesium acetate and calcium acetate with calcium chloride and magnesium chloride in a certain proportion, as well as a small quantity of corrosion inhibitor. The common fault that a common inorganic snow melting agent is high in corrosivity is effectively overcome, the cost is reduced, and therefore the snow melting agent is suitable for promotion and application.

The invention relates to the field of construction equipment, particularly to a wall surface shoveling device with a powder falling-proof function. The wall surface shoveling device with the powder falling-proof function comprises a wall surface shoveling module, a power tank, a lifting module, a driving module and a bearing plate, wherein the lifting module is arranged at the top of the bearing plate and is in transmission fit with the powder tank; the wall surface shoveling module is arranged at one end of the power tank, which is away from the lifting module; the above of the powder tank isprovided with a spraying module, and the bottom of the powder tank is provided with a discharging funnel communicated with the powder tank; the bottom of the discharging funnel is provided with a discharging pipe; the wall surface shoveling module is composed of a wall breaking module and a surface shoveling module, and the wall breaking module is arranged right above the surface shoveling module. The wall surface shoveling device with the powder falling-proof function can automatically shovel wall surfaces and reduce the labor intensity of workers, meanwhile, can collect falling powder to prevent the powder from falling on the ground, and through the spraying module, can effectively avoid diffusion of dust to provide a healthful working environment for the workers.

The invention relates to antibacterial or deodorizing cat litter as well as a preparation method and a using method thereof. The antibacterial or deodorizing cat litter is prepared from white pea fiber, corn starch, corn flour and guar gum as raw materials by mixing in proportion, granulation and drying, and the cat litter serving as packing for a defecation place of a cat has quite high water absorptivity, can be clustered after absorbing water, and is high in clustering force and easy to remove without dispersing; the cat litter can be resistant to multiple pathogenic bacteria and has a better killing effect on staphylococcus aureus, candida albicans, escherichia coli and pseudomonas aeruginosa, so that the probability of wound infection of pets can be effectively reduced, bacterial reproduction, growth and diffusion at the defecation places of the pets can be effectively controlled, and health security is provided for living environments of people and the pets.

The invention discloses a road ice and snow clearing device for municipal engineering. The road ice and snow clearing device comprises a vehicle. A telescopic hydraulic cylinder is fixedly mounted on the top of the vehicle, and the bottom of a telescopic shaft of the telescopic hydraulic cylinder is fixed to the upper side surface of a slide bar; a storage barrel is fixedly mounted on a fixing frame and is filled with snow clearing agents, and the lower portion of the storage barrel is of a conical structure; a piston head is fixedly mounted at the bottom of a push-pull rod; a first return spring is arranged between the slide bar and the fixing frame, the upper end of the first return spring is fixed to the lower side surface of the slide bar, and the lower end of the first return spring is fixed onto the fixing frame; an extension rod is provided with a swing rod, the middle of the swing rod is hinged onto the extension rod, a second return spring is arranged between the extension rod and the swing rod, the upper end of the second return spring is fixed to the left side surface of the swing rod, the lower end of the second return spring is fixed onto the upper side surface of the extension rod, a crushing pressing piece is hinged to the lower end of the swing rod, and a plurality of crushing nails are uniformly arranged at the bottom of the crushing pressing piece. The road ice and snow clearing device has the advantages that the road ice and snow clearing device is smart in structure and reasonable in design, and excellent effects of clearing ice and snow which are attached onto roads can be realized by the road ice and snow clearing device.

The invention provides an environment-friendly non-chlorine-salt snow melting and deicing agent and a preparation method thereof, and belongs to the field of snow melting and deicing. The environment-friendly non-chlorine-salt snow melting and deicing agent is characterized by comprising the following raw materials in percentage by weight: 60-90 percent of main solvent, 2-20 percent of wetting cosolvent and 2-20 percent of corrosion inhibitor, wherein the main solvent is prepared from 60-90 percent by weight of formate and 10-40 percent by weight of sodium metasilicate; the wetting cosolvent is prepared from 40 percent by weight of sodium borate or calcium nitrate and 60 percent by weight of urea or ammonium carbonate; the corrosion inhibitor is prepared from 60 percent by weight of sodium gluconate and 40 percent by weight of zinc sulfate. According to the environment-friendly non-chlorine-salt snow melting and deicing agent, the common problems of high corrosivity, serious impact on soil structures and the like of common inorganic chlorine salt snow melting agents can be effectively solved; after being used, the environment-friendly non-chlorine-salt snow melting and deicing agent can be naturally decomposed under the natural environment, and the cost of the non-chlorine-salt snow melting and deicing agent is lower than that of other organic salt (like acetates including potassium acetate, calcium magnesium acetate and the like) snow melting and deicing agents; therefore, the environment-friendly non-chlorine-salt snow melting and deicing agent is suitable for being used in places like domestic and overseas roads, airport pavements and streets, and has wide popularization and application prospects.

The invention relates to a method for processing landfill percolate in the technical field of wastewater processing, which comprises the following steps: 1. filtering landfill percolate by an iron scrap layer; 2. sequentially filtering the filter liquor obtained in the step 1 by a mineralized garbage layer and a stone layer; and 3. sequentially filtering the filter liquor obtained in the step 2 by the mineralized garbage layer and the stone layer to obtain purified water. Fe and part of carbon substances in mineralized garbage are combined to form internal electrolysis, generated Fe<2+> is used as catalyst and microorganism flocculating agent needed by a following mineralized garbage biological reaction bed to reinforce the biological reaction effect of the mineralized garbage and finally the CODCr and the ammonia nitrogen of the filter liquor are reduced; and the processing cost is reduced on the basis of meeting the standard discharge of the tail water of the percolate.

The invention discloses a preparation process and an application of calcium magnesium acetate. The preparation process comprises the following processing steps: preparing a calcium acetate solution, and performing press filtration, MVR concentration and centrifugal spray-drying. The preparation process disclosed by the invention is simple in technical process, easy to operate, easy in raw material acquisition, free from emission of three wastes in an overall production process, high in production efficiency, high in yield, low in equipment investment, wide in application and remarkable in economic benefits. The calcium magnesium acetate prepared by the process disclosed by the invention has the functions of melting snow, deicing, resisting dust, preventing dust and controlling atmospheric pollution; as a snow melting agent, the calcium magnesium acetate is higher in snow melting capability and enables accumulated snow and ice layers to be loose so that the snow and the ice layers can be removed more easily; as a dust resisting agent, the calcium magnesium acetate can be used for removing NOx and SO2 generated by combustion of coal and HCl generated by combustion of PVC (Polyvinyl Chloride) so as to control the atmospheric pollution; moreover, the calcium magnesium acetate causes quite low corrosion to metals and causes no toxic or side effects to human, soil and plants.

The invention relates to cat litter and a preparing method thereof. Bean dregs, corn flour, corn starch, flour, extruded corn flour, calcium carbonate, plant fibers, emulsified equilibrium oil powder,guar gum, sodium polyacrylate and the like are taken as raw materials of the cat litter, then bromothymol blue is added into the raw materials, and the pH of urine of a kitty can be monitored at anytime. Since the cat litter is reasonable in raw material and proportioning, monitoring is conducted timely and accurately, and the probability that the pet suffers from lithiases can be effectively reduced.

The invention discloses a lifting type wall skin removal device with a dust-proof function. The lifting type wall skin removal device comprises a base, wherein a support plate is fixed at the top of the base; a first slide rail is fixed on the right side wall of the support plate; the right side of the first slide rail is glidingly connected with a lifting plate; a gear motor is also fixed at thetop of the base; the motor shaft at the top of the gear motor is connected with a screw; the top end of the screw passes through the top of the support plate and is rotatably connected with the support plate; when rotating, the gear motor drives the screw to rotate; a second slide rail is fixed at the top of the lifting plate; a shovel is glidingly connected above the second slide rail; the shovelis fixedly connected with the second slide rail through a fixing bolt. In the invention, the wall skin removal height can be controlled by rotating the screw, the wall skin at different height is shoveled conveniently, the wall skin removal efficiency is high, and the trouble in manually controlling the shovel is avoided; the shovel is glidingly arranged on the second slide rail and can be adjusted by sliding, thereby facilitating the removal of the wall skin of different thickness.

The invention discloses a high-efficiency dredging device for water conservancy engineering. The high-efficiency dredging device comprises a base, a dredging pump is fixedly installed on the base, anda mud pump is fixedly mounted on the base. The mud pump is connected with a collecting placing box through a mud outlet pipe. The collecting placing box is further provided with a coagulant reactionwater tank, and the coagulant reaction water tank communicates with the collecting placing box through a connecting pipe. A first rotating rod is driven to rotate by the dredging pump, and the first rotating rod drives gears in a gear box to rotate, so that shoveling plates can be driven to rotate, and then sludge can be easily shoveled and removed; and meanwhile, the sludge can be cleaned by theaction of the mud pump. Raw materials in the coagulant reaction water tank is introduced into the collecting placing box, and then stirring is carried out by stirring blades, so that the sludge in thecollecting placing box can be well treated. Liquid medicine is sprayed into a dredging pipeline through a medicine spraying box, so that bacteria in the sludge pipeline can be reduced, and the safetyof use is greatly improved.

The invention discloses a soil extracting device capable of extracting various soils conveniently for ecological environment protection. The soil extracting device capable of extracting various soilsconveniently for ecological environment protection comprises a first bearing and a manual telescopic rod, wherein connecting rods are arranged on the left side and the right side of the first bearing;second bearings are mounted on the left side and the right side of each connecting rod; telescopic racks are arranged on the left side and the right side of each second bearing; a first bearing is mounted above the manual telescopic rod; three supporting rods are fixed below the manual telescopic rod; a through hole is formed in the outer side of each supporting rod; a collecting chamber is fixedon the outer side of each through hole; a cross plate is mounted on the bottom of each supporting rod; a scraper blade is arranged on the outer side of the cross plate; a drilling rod is mounted on the bottom of the cross plate; and a groove is fixedly formed in the cross plate. The soil extracting device capable of extracting various soils conveniently for ecological environment protection is provided with the collecting chambers and the supporting rods, the number of the collecting chambers and the number of the supporting rods are three, and therefore, by the three collecting chambers andthe three supporting rods, soil among three distances can be extracted simultaneously.

The invention discloses a metal powder removing device for an alloy type 3D printer, and belongs to the technical field of 3D printing. The metal powder removing device comprises a base, wherein supporting plates are fixedly arranged at the front side and the rear side of the top of the base, and an operation table is fixedly arranged on the tops of the supporting plates. According to the metal powder removing device, through the arrangement of a motor, an output shaft of the motor drives a driving gear to rotate, the driving gear rotates to drive a driven gear to rotate, the driven gear rotates to drive a rotating rod to rotate, the rotating rod rotates to drive a first gear to rotate, the first gear rotates to drive a second gear to rotate, the second gear rotates to drive a threaded rodto rotate, the threaded rod rotates to drive a threaded pipe to move, the threaded pipe moves to drive a connecting rod to move, and the connecting rod moves to drive a scraper knife to move at the top of the operation table, so that powder sintered on the surface of the operation table is shoveled, a brush can sweep residual metal powder, metal powder sinter on the surface of the operation tableis conveniently shoveled, and the purposes of saving time and labor are achieved.

The invention discloses a high-efficiency down feather dewatering device, and relates to the technical field of down feather processing. The device comprises a base, wherein the top end of the base isprovided with a groove; the inside of the groove is provided with a first motor; the bottom end of the base is fixedly provided with a supporting base; the top end of the supporting base is fixedly provided with an outer tub; a dewatering bucket is arranged in the outer tub; one side of the outer tub is fixedly provided with a supporting plate; the top end of the supporting plate is fixedly provided with a heating fan; the top end of the heating fan is fixedly provided with a hot air pipe; and an air inlet is fixedly mounted on one side of the top end of the outer tub. By means of the device,the dehydrated down feather is conveniently removed from the wall of the dewatering bucket, so that the down feather after the dewatering is convenient for workers to collect; the dehydrated down feather will pile up together, and the quality of the down feather will be affected after a long time of accumulation; and after the down is dehydrated, the hot air can be introduced in to dry the down feather as quickly as possible during the scattering process, so that the down feather is easy to being scattered.

The invention relates to the technical field of aluminum materials, in particular to an aluminum profile for doors and windows. The aluminum profile comprises a supporting structure, a sliding structure, a dust removing structure and a heat dissipating structure; in the process of moving up and down of a fixing rod, a fixing column is enabled to push and pull a limiting block, so that an air bag is inflated and deflated, gas is blown into a sliding groove from a vent hole, cement dust in dust outlet holes is blown out, meanwhile, the remaining cement dust in the sliding groove is blown into the dust outlet holes, and the cement dust in the sliding groove is further cleaned to prevent an aluminum door frame body from being stuck by the cement dust; and in the process of blowing the gas into the sliding groove by the air bag, heat generated by friction of a first roller and a second roller in the sliding groove is lowered, heat generated by the contact friction between a dust removing shovel and the bottom end in the sliding groove is lowered, and the wear of the first roller and the second roller is reduced, so that the removal of the cement dust is facilitated by the drive of the dust removing shovel in the rolling process of the first roller and the second roller.

The invention provides a solar photovoltaic panel snow-cleaning de-icing device, and specifically relates to the technical field of the photovoltaic equipment. The solar photovoltaic panel snow-cleaning de-icing device comprises a solar photovoltaic panel base, a solar photovoltaic panel support frame is arranged on the solar photovoltaic panel base, and the solar photovoltaic panel support frameis a U-shaped structure; a solar photovoltaic panel is arranged on the solar photovoltaic panel support frame, a cylinder seat is further arranged on the solar photovoltaic base, a cylinder is arranged on the cylinder seat, and a snow-removing shovel is movably arranged on the solar photovoltaic panel, and a piston rod of the cylinder is movably connected with the snow-removing shovel; and a slackadjusting device is further arranged in the U-shaped opening of the solar photovoltaic panel support frame. The solar photovoltaic panel snow-cleaning de-icing device provided by the invention can remove the snow and ice on the surface of the solar photovoltaic panel; furthermore, the cylinder can drive the snow-removing shovel body to reciprocate through a reinforcement block, thereby playing the guiding effect; the snow-removing shovel is prevented from inclining when shoveling the snow on the solar photovoltaic panel, and the de-icing quality is guaranteed.

The invention relates a row-drive type pipeline inner wall two-way cleaning device which comprises a baffle. A power mechanism is arranged on one side of the baffle, the power mechanism comprises a driving mechanism, a shell and clamping blocks, the driving mechanism is fixed between the clamping blocks, and the driving mechanism penetrates through the baffle to be connected with a sweeping mechanism with a shoveling and sweeping function. A torsional spring on the side wall of the baffle is rotatably connected with a spray head, the spray head penetrates through the baffle and is located in the shell to be connected with a water pipe, the side wall of the spray head is connected with a pull rope, a wire pipe is fixed to the side wall of the shell in the radial direction, and the pull rope penetrates through the wire pipe to be connected with a control mechanism. Foreign matter attached to the inner wall of a pipeline is shoveled away through the diameter-adjustable sweeping mechanism, in the shoveling process, cleaning liquid is sprayed out through the spray head to conduct flushing, the foreign matter is shoveled away more easily, the spray head is adjusted and steered in the return direction, and therefore reverse cleaning is achieved, and the cleaning effect is improved.

The invention relates to compound fertilizer for preventing and treating fast-growing eucalyptus red leaf dieback and a production method for the compound fertilizer. The compound fertilizer consists of the following raw materials in parts by weight: 2-5 parts of sinistrality alpha-terpilenol, 5-10 parts of azoxystrobin wettable powder with the concentration of 25 percent, 5-10 parts of tea seed meal, 15-20 parts of nitrogen, 5-7 parts of phosphorus, 10-13 parts of potassium, 3-8 parts of boron, 1-2 parts of copper, 3-5 parts of Fe, 1-3 parts of zinc, 10-20 parts of packing and 5-60 parts of an organic fertilizer. The production process comprises the following steps: pretreating all the raw materials, and granulating the raw materials through a rotary drum. The compound fertilizer is mainly used for preventing and treating the red leaf dieback of fast-growing eucalyptus; the prevention and treatment effect is better and more efficient in comparison with that of conventional supplementary spraying of boron fertilizer to leaf surfaces; pesticides and fertilizers are integrated, labor is not repeatedly wasted, and the working efficiency is improved.

The invention relates to the technical field of cleaning brushes, in particular to a cleaning brush capable of cleaning solid kitchen appliances, which comprises a driving structure, a reversing structure, an angle adjusting structure, a cleaning structure, a storage structure, a reset structure and a heat exchange chamber. The driving structure is released, the reset structure enables an accommodating cavity in the driving structure to be enlarged, the reversing structure is regulated, the storage structure is conducted with the driving structure, and the storage structure generates negativepressure, so that the sweeps are more convenient to store in the storage structure, hot water can be conveniently controlled to enter the driving structure from the storage structure through the driving structure; reversing structure is then adjusted, the driving structure is communicated with the heat exchange chamber, and the driving structure is pressed, so that hot water is discharged to the heat exchange chamber from the driving structure, the temperature of the storage structure is increased, small-area fallen ice blocks in the storage groove of the refrigerator can be conveniently melted through the storage structure, ice crumbs are more convenient to clean, the melting speed of frozen food is decreased, and then electric energy is greatly saved.

The invention discloses a multifunctional material stirring device which comprises a base. The top of the base is fixedly connected with supporting plates, a stirring barrel is disposed between the supporting plates, the left side and the right side of the stirring barrel are fixedly connected with supporting rods, the top of the base is connected with a supporting seat, the top of the supportingseat is fixedly connected with a hydraulic push rod, a sealing plate is hinged to the top of the hydraulic push rod, the top of the supporting plate is provided with a bearing plate, the top of the bearing plate is provided with a stirring motor, the upper end of a stirring shaft is sleeved with a sliding sleeve, the left side and the right side of the sliding sleeve are symmetrically fixedly connected with cross rods, the two groups of cross rods are provided with hinged seats, a cleaning hairbrush is hinged to the bottom of the hinged seat on the left side, a shoveling blade is hinged to thebottom of the hinged seat on the right side, and water sprayers are symmetrically disposed on the left side and the right side of the bottom of the bearing plate. The multifunctional material stirring device is reasonable in structural design, the cleaning of the stirring device is facilitated, the cleanliness in the stirring device is improved, materials adhering into the stirring device are also removed, and adhering residue of the materials in the stirring device is reduced.

The invention provides a device and method for cleaning stickers on automobile glass through multi-step treatment, and relates to the field of automobiles. The device for cleaning the stickers on theautomobile glass through multi-step treatment comprises a mounting fixed shell, wherein a top grip is bonded to the top of the mounting fixed shell, the side wall of the mounting fixed shell is bondedto one end of a connecting grip rod, the other end of the connecting grip rod is bonded to the side wall of an end grip, the side wall of the mounting fixed shell is connected with a liquid accumulation mechanism on the side away from the end grip, and a flexible welt shoveling mechanism is arranged in the mounting fixed shell. According to the device for cleaning the stickers on the automobile glass through multi-step treatment, a shovel piece inclines downwards and makes contact with glass obliquely when being in contact with the glass, the end of the shovel piece can be inserted between the glass and a sticker conveniently, the shovel piece makes contact with the glass and then gets close to an installation roller, scratches generated on the glass due to hard contact with the glass areprevented, and hot air generated by the device facilitates melting of the adhesive sticker, the binding power is reduced, and the sticker is facilitated to be shoveled.

The invention relates to the field of building construction devices, in particular to a wall skin removing device for building construction. The device comprises a bottom plate seat, wherein a storagebox and a mounting seat are arranged on the left side and the right side of the top of the bottom plate seat respectively, a lifting telescopic cylinder used for driving the mounting seat to move upand down is mounted at the bottom of the bottom plate seat, two side frames are fixedly mounted at the top of the mounting eat, a guide rod is further arranged on the position, on the outer sides of the two side frames, of the mounting base in a matched and sliding mode, the lower end of the guide rod is fixed to the bottom plate seat, a wall skin shovel plate is rotationally mounted on the upperportion between the two side frames through a supporting shaft, an angle adjusting telescopic cylinder used for supporting and angle adjusting of the wall skin shovel plate is installed on the lower side of the left end of the wall skin shovel plate, and a cutting mechanism is further installed on the left side of the wall skin shovel plate. The device is convenient to use, control and adjust, hasgood clearing and cutting effects on the wall skin, and is beneficial to subsequent recycling treatment.

The invention relates to a central sweeping mechanism of a sweeping robot. The central sweeping mechanism comprises a driving motor, a gearbox, a central sweeping rotation shaft and a hairbrush, wherein the driving motor drives the gearbox and drives the central sweeping rotation shaft to rotate, the hairbrush is arranged on the central sweeping rotation shaft, the central sweeping rotation shaft of the central sweeping mechanism is in a split structure, the central sweeping rotation shaft in the split structure adopts the clamping or screwing fixing manner, and a rubber shovel is arranged between the split parts of the central sweeping rotation shaft. The central sweeping rotation shaft is in the split structure, so that the rubber shovel and the hairbrush can be conveniently detached and replaced; through the double cleaning effects of the rubber shovel and the hairbrush, the ground can be well and rapidly cleaned to be tidy, therefore, the cleaning efficiency of the central sweeping mechanism is improved; the rubber shovel is sheet-shaped and is thin in the front and thick in the rear, the front end is provided with a cutting-edge-shaped shovel opening, so that deformation is seldom caused after stressing, and sticking substances difficult to clean on the ground can be conveniently shoveled; the rear end is provided with a column-shaped clamp column, and the clamp column clamps the rubber shovel in a clamp groove, therefore, the rubber shovel has small possibility of becoming loose after being stressed in the cleaning process, and the structure is firm.

The invention provides an electric hammer trolley for shoveling floor tiles. The electric hammer trolley comprises a trolley body, a battery, an electric hammer, a clamp and a shovel blade. The battery and the electric hammer are arranged on the trolley body, the electric hammer is fixed to the trolley body through the clamp, the shovel blade is installed on the electric hammer, and the battery supplies power for the electric hammer. The electric hammer works to drive the shovel blade to move so as to shovel the floor tiles, and people push the electric hammer trolley to move forward to realize continuous operation. The operation of the whole use process is simple, working is efficient, the electric hammer trolley has better shoveling ability, applies to the field of architectural decoration, and particularly applies to shoveling of laid old floor tiles during secondary decoration, the human labor intensity is reduced effectively, and the working efficiency is improved.

The invention discloses automatic shoveling equipment for a putty layer of a building wall. The automatic shoveling equipment comprises a support frame, a spraying assembly, an adjusting assembly I, an adjusting assembly II, a shoveling assembly and a collecting assembly; a support base is welded at the bottom of the support frame, and one side of the support frame is connected with the adjusting assembly I. The spraying assembly sprays water to a wall coated with the putty layer, the putty layer is conveniently shoveled by a scraper knife, dust splashing in the putty layer shoveling process is avoided, environmental pollution is avoided, a first hydraulic cylinder drives a first hydraulic rod to move, one side of the scraper knife is pushed to abut against one side of the putty layer, the putty layer of the building wall is conveniently shoveled by the scraper knife, the adjusting assembly II is adjusted to enable the shoveling assembly to move in the left-right direction, the shoveling area is increased, time and labor are saved, high efficiency of the automatic shoveling equipment during use is achieved, an adjusting assembly III is arranged at the bottom of a collecting box, the collecting box full of putty is conveniently pulled out, and garbage in the collecting box is treated.

The invention discloses an automatic snow and ice removing device capable of sensing the accumulated snow condition of a cable. The device comprises an upper box body; an upper working cavity, which is provided with a downward opening and is through in the front-back direction, is formed in the upper box body; a lower box body is arranged below the upper box body; a lower working cavity, which isprovided with an upward opening and is through in the front-back direction, is formed in the lower box body; cables penetrating through the upper working cavity and the lower working cavity are arranged in the upper working cavity and the lower working cavity; the whole device is fixed onto the cable. The device can monitor the accumulated snow / accumulated ice state of the cable in real time and shovels the accumulated snow / accumulated ice from starting. The device can automatically adjust the power of the heating wire according to the accumulated snow condition on the cable so as to achieve abetter accumulated snow shoveling effect, can achieve an icing broken state through the quick-return reciprocating device when icing on the lower side of the cable. During installation of the device,the threshold value can be manually set, so that the device is auto-started only if the accumulated snow reaches the threshold value; if the accumulated snow is difficult to remove, the status of thedevice can be adjusted for shovelling the snow by multiple times in a layered manner.

The invention discloses a preparation process and an application of calcium magnesium acetate. The preparation process comprises the following processing steps: preparing a calcium acetate solution, and performing press filtration, MVR concentration and centrifugal spray-drying. The preparation process disclosed by the invention is simple in technical process, easy to operate, easy in raw material acquisition, free from emission of three wastes in an overall production process, high in production efficiency, high in yield, low in equipment investment, wide in application and remarkable in economic benefits. The calcium magnesium acetate prepared by the process disclosed by the invention has the functions of melting snow, deicing, resisting dust, preventing dust and controlling atmospheric pollution; as a snow melting agent, the calcium magnesium acetate is higher in snow melting capability and enables accumulated snow and ice layers to be loose so that the snow and the ice layers can be removed more easily; as a dust resisting agent, the calcium magnesium acetate can be used for removing NOx and SO2 generated by combustion of coal and HCl generated by combustion of PVC (Polyvinyl Chloride) so as to control the atmospheric pollution; moreover, the calcium magnesium acetate causes quite low corrosion to metals and causes no toxic or side effects to human, soil and plants.

The invention discloses a labor-saving garbage truck for environmental sanitation. The labor-saving garbage truck comprises an electrocar, a garbage can, a clamping rod, a first hydraulic cylinder, asecond hydraulic cylinder and a third hydraulic cylinder; the garbage can is installed on the top of the electrocar, a backrest is arranged on the left side of the garbage can, a first can cover is hinged to the right end of the garbage can, and sleeve pipes are installed on the front side wall and the rear side wall of the garbage can; and hanging buckles are installed on the front side wall andthe rear side wall of the first can cover, a movable pin is inserted into the right end of each sleeve pipe, the left end of each movable pin penetrates through the corresponding sleeve pipe and is connected to a limiting block, and the right end of each movable pin is connected to the corresponding hanging buckle in a hanging mode. According to the labor-saving garbage truck for environmental sanitation, clamps and a dustpan are arranged at the bottom of the clamping rod and can be driven to be switched under the working of the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder, so that the clamping function is achieved, the function of being the dustpan when sweeping and removing garbage is achieved, use by sanitation workers is facilitated, the trouble of carrying too much tools is reduced, and the device is practical and suitable for being widely popularized and used.

The invention discloses a chain assembly line. Thechain assembly line is structurally provided with foot bases, a whole plate, a driving roller, a chain and a bearing base. Sliding block bodies slide in a lifting mode under the action of a lifting power disc, no foreign object abuts against the lower end of an arc sliding body during ascending, the arc sliding body slides out through an opening in the bottom end of an outer frame, and an arc pocket spring plays a role in receiving and limiting the arc sliding body; and a touch pressing block generates downward pressing abutting force on the arc sliding body to prevent the arc sliding body from sliding into an inner cavity in the process of rubbing the side wall of a columnar plate cavity, a whole supporting section maintains the arc sliding body in an arc shape integrally, the side wall of the columnar plate cavity is in contact through the elastic toughness of a middle soft section , a side connecting diameter facilitates falling of floating dust and collection of the dust, a shovel block integrally stretches and protrudes towards a side port of a through plate, the bottom of the shovel block abuts against a half-bag abutting block, certain inclination is achieved for a solid block, attachments on the side wall of the columnar plate cavity can be conveniently shoveled away by the whole shovel block in the displacement process, shoveled materials can be conveniently discharged through a through hole structure of the through plate, and therefore the situation that dust attachments exist on the side wall of the columnar plate cavity, and consequently the displacement movement of the sliding block bodies is affected is avoided.

The invention discloses an efficient axial flow pump applied to agricultural irrigation, which belongs to the technical field of agricultural irrigation. The axial flow pump comprises a shell body, wherein a motor is disposed on the side wall of the top of the shell body; blades are disposed at the middle of the outer side wall of a rotation rod; filtering meshes are movably disposed between a base and adjacent faces of the shell body; rolling devices matched with inner side walls of the filtering meshes are movably disposed on the left side and right side of the side wall of the top of the base; and cleaning devices matched with the rolling devices are disposed between the base and the adjacent faces of the outer side wall of the shell body. The device is inserted into a mesh hole of eachfiltering mesh by an insertion rod; sundries such as leaves attached on the outer wall of the filtering mesh are pushed outwards; through shrinkage of a spring, the right end of a shovel plate is closely adhered to the outer side wall of the filtering mesh, so the shovel plate can shovel off the sundries attached on the outer wall of the filtering mesh, blocking of the filtering mesh is avoided and thus working efficiency of the device is increased; and a part of water in the device enters an inner cavity of a cover body via a through hole, so heat dissipation of the motor is realized and thus working efficiency of the motor is increased.

The invention aims to solve the problem of slope protection repairing in a water conservancy project, and discloses a slope protection repairing device for the water conservancy project. The slope protection repairing device comprises a bottom plate, wherein universal wheels are evenly mounted on the bottom face of the bottom plate, a holding rod is fixedly mounted at the left end of the upper surface of the bottom plate, a holding ring is fixedly mounted at the top end of the holding rod, a supporting block is fixedly mounted in the middle of the upper surface of the bottom plate, a rotating block is mounted on the upper side of the supporting block, a rotating shaft is mounted between the supporting block and the rotating block, a guide cylinder is fixedly mounted on the upper side of the rotating block, spiral springs are symmetrically connected between the guide cylinder and the bottom plate, a water pump is fixedly mounted on the side face of the guide cylinder, a first guide pipe and a second guide pipe are connected to the water pump, and an inserting rod is sleeved with the guide cylinder. Waste slope protection is separated, the separated slope protection can be transferred, help is provided for building of new slope protection, and material waste is reduced.