60results about How to "Good rust removal effect" patented technology

The invention discloses a grinding and rust removing device for chemical pipeline anticorrosion. The grinding and rust removing device for chemical pipeline anticorrosion comprises an operation frame.A first guide rod and a second guide rod are horizontally and fixedly mounted in the operation frame. The first guide rod and the second guide rod are slidably sleeved with an upper sliding sleeve and a second sliding sleeve correspondingly. Grinding heads are fixedly mounted at the ends of telescopic rods correspondingly. A rotary shaft is rotatably arranged on the right sidewall of the operation frame. The rotary shaft is in transmission connection with a second lead screw through a second transmission belt. An output shaft of a forward and reverse rotating motor is coaxially fixed to the second lead screw. According to the grinding and rust removing device, the forward and reverse rotating motor rotates forwards and reversely to drive a first lead screw and the second lead screw to rotate, and then a first threaded sleeve and a second threaded sleeve drive the telescopic rods to do left-right reciprocating motion. Finally, the grinding heads do transverse back and forth motion to grinding the surface of a pipeline. The grinding speed is increased. Meanwhile, the pipeline can rotates along with rotating of the fixed plates so as to be annularly ground. The working efficiency isgreatly improved.

The invention discloses a machining-use efficient derusting device for the surface of a steel plate. The machining-use efficient derusting device comprises a bottom plate. A vertical plate is vertically and fixedly installed on the bottom plate. A guide rod is horizontally and fixedly installed on the right side wall of the vertical plate. Two guide sliding grooves are symmetrically formed in a supporting table. Limiting sliding blocks embedded in the guide sliding grooves in a sliding mode are vertically and fixedly installed at the bottom of a bearing plate. A hand wheel is fixedly installedat the right end of a lead screw. A driving motor serves as power output, a sliding sleeve plate reciprocates left and right along the guide rod through clockwise and anticlockwise alternating swinging of a swinging batten, and then repeated grinding derusting of a grinding disc in the horizontal transverse direction is realized. The rotation of an incomplete gear drives a concentric-square-shaped frame to reciprocate through a transmission inner rack, and the steel plate on the bearing plate reciprocates front and back relative to the grinding disc. Transverse grinding and longitudinal grinding are combined, grinding efficiency is greatly improved, the labor intensity and labor amount are low, and the derusting effect of the steel plate is remarkable.

The invention discloses a surface rust removal device for a rotary shaft of a coil motor. The device comprises a supporting base, a lower rack, an upper rack, a gear, a left movable plate, a right movable plate, a driving motor, a first coupling, a second coupling and abrasive paper. A lower slide rail is arranged on the inner wall of the bottom in the supporting base; an upper slide rail is arranged on the inner wall of the upper side in the supporting base; the left movable plate is connected between a left slide sleeve and a second connecting rod; the right movable plate is connected between a right slide sleeve and a first connecting rod; and clamp plates are also arranged on the left and right movable plates. The device disclosed by the invention is novel in structure, can meet the surface rust removal work of the rotary shafts in different lengths, and is high in universality. Iron rust on the surface of the rotary shaft is removed by means of high-speed rotation of the rotary shaft, so that the rust removal effect is extremely good. Compared with manual polishing, the device is more time-saving and labor-saving, and meanwhile, is better in polishing effect, so that problemsthat the surface smoothness of the rotary shaft is low as a result of non-uniform stress during manual polishing and the like are solved, and the device is simple and effective.

The invention relates to a rust removal device, in particular to a building frame erecting steel pipe rust removal device, and aims at achieving the technical purpose of providing the building frame erecting steel pipe rust removal device which is capable of saving time and labor, good in rust removal effect, free of manual rust removal and not prone to hurting hands. To achieve the above technical purpose, the building frame erecting steel pipe rust removal device is provided and comprises an operation table and the like. A through groove is formed in the right side of the operation table. Aframe is arranged on the right side of the top of the operation table. A moving device is arranged on the top in the frame. The moving device is connected with a sand plate, and the sand plate is located above the through groove. The top of the operation table is provided with a rotation fixing device connected with the moving device. Through the moving device, comprehensive rust removal can be conducted on steel pipes through the sand plate; and through the drive device, rust removal can be further conducted on the steel pipes, the rust removal effect is better, time and labor are saved, andthe rust removal effect is good.

The invention relates to a rust-removal device, in particular to an efficient rust-removal device for a building bar. The invention aims to provide the efficient rust-removal device for the building bar, wherein the rust-removal efficiency is high. In order to solve the technical problem, the invention provides the efficient rust-removal device for the building bar. The device comprises a treatment box, a servo motor, a first flat belt, a first small belt pulley, a first bearing pedestal, a first nut, a first lead screw, a connecting block, a second nut and the like; a fixed device comprises electric push rods and pressure blocks; through holes are formed in the left wall and the right wall of the treatment box, the electric push rods are arranged in the tops of the through holes, the pressure blocks are arranged at the bottom ends of the electric push rods, and the servo motor, a first bearing pedestal and a second bearing pedestal are successively arranged in the bottom of the treatment box from left to right. The efficient rust-removal device for the building bar, wherein the rust-removal efficiency provided by the invention achieves the effects of high rust-removal efficiency, simple structure of the device, low manufacturing cost of the device and simple operation of the device.

The invention discloses chemical de-rusting liquid, which is prepared from the following raw materials in percentage by weight: 10%-20% of gallotannic acid, 10%-15% of phosphoric acid, and 20-30% of alcohol, 40-60% of water. The sum of the raw materials in percentage by weight is 100%. The preparation method comprises the following steps of: weighing the raw materials in formula amounts; adding the gallotannic acid, the phosphoric acid, the alcohol and the water into a stainless steel reaction kettle in sequence at normal temperature and normal pressure; then, heating; controlling the temperature in the reaction kettle at 15-35 degrees centigrade; and stirring at low speed for 10-30 min to obtain the de-rusting agent. The chemical de-rusting liquid disclosed by the invention has the advantages of good de-rusting performance, low cost, environmental friendliness, simple construction process and multiple functions of phosphorization, passivation and the like. The quality of a de-rusted and cleaned surface can reach grade Sa 2.5, phosphorization and passivation are carried out on a metal surface simultaneously, and the chemical de-rusting liquid dose not generate acid mist and does not need heating in a use process and is convenient to use.

The invention discloses a steel wire rust removal device applied to machining, which is reasonable and simple in structure, low in production cost and convenient to mount. A steel wire is clamped between clamping parts through a locking part. When movement is required, a pneumatic rod extends out of a pulley for slipping. When moving to a specified position, the pneumatic rod lifts up a slider toprevent slipping. During operation, straightening is performed by a straightening wheel on a straightening device first. While straightening is performed, oxide skin on the surface of a steel wire isloosened. After that, a grinding roller is externally connected to a driving device for grinding and dust removal. Contact friction occurs between the grinding roller and the surface of the steel wire, so that the oxide skin of the steel wire is knocked out. At this time, most oxide skin on the surface of the steel wire is removed, but some rust still exists on the surface. At last, under the action of sponge, the rust is cleaned. By adoption of the technical solution, the oxide skin on the steel wire is cleaned. The process is fully automatic. The operation is simple. The working efficiency is improved.

The invention discloses an environment-friendly metal rust removing solution which comprises components in parts by weight as follows: 80 parts of water, 40-60 parts of straw ash, 20-30 parts of citric acid and 2-5 parts of acetic acid. According to the environment-friendly metal rust removing solution, the straw ash adopting a porous structure is applied to the rust removing solution, and under the combined action of the citric acid and the acetic acid, the rust removing solution has a good rust removing function for metal, especially has the excellent rust removing effect on steel type metal, causes low damage to mechanical properties of the metal and is safe and environment-friendly during operation.

The invention discloses a strip steel derusting process, which comprises the following steps: a: installing the strip steel on a transmission roller, and loosening the oxide skin through a peeling agent; b: passing the strip steel treated in step a through a brush The device is rusted; c: when the brush device is used for rusting in step b, the blower blows the scale and blows it down to the recycling bag; d: the derusted strip is transported to the pickling tank for pickling. The present invention adds the step of brushing rust with a brush device before the pickling process, which has good rust removal effect and high work efficiency, and greatly reduces the amount of hydrochloric acid used in the pickling step in the latter step, which can save 50% of hydrochloric acid and reduce waste acid discharge , is conducive to reducing business costs and improving economic efficiency.

The invention relates to a derusting device, which mainly comprises a jacking device, a body, a derusting wheel and a transmission control device, wherein the jacking device comprises a tip cone, a locking block, a clamping block, a self-locking block and a stopping block. A derusting rod is jacked by the tip cone and locked by matching the locking block and the clamping block. Self-locking and control are realized by matching the locking block, the self-blocking block and the stopping block. The body has a frame structure and comprises a rack and a plurality of guide rails. The derusting wheel is formed by winding a plurality of strands of steel wire balls and has a disk shape and elasticity. The transmission control device comprises a control box and a plurality of motors. The derusting rod derusts a metal rod by controlling rotation of the derusting wheel, translation of the derusting wheel and rotation of the derusting rod. The derusting device cannot only derust metal pipes with steps or metal rods with steps, but also is suitable for derusting transverse upright rods in building industry, the derusting efficiency is high, a derusting dead corner is avoided, a good derusting effect is achieved, and the derusting device is convenient to operate and can be operated by a common worker.

The invention discloses a clinging type fixed-point rust removal device for a street lamp pole. The device comprises a first rack, a base, a second rack, a first telescopic rod and a second telescopicrod; a second guide rail and a first guide rail are symmetrically and fixedly arranged on the left side and the right side of the base; the first rack and the second rack are arranged on the first guide rail and the second guide rail correspondingly through sliding blocks; the first telescopic rod and the second telescopic rod are fixedly arranged on the second rack and the first rack correspondingly; a first rust removal ring and a second rust removal ring are fixedly arranged at the telescopic end of the first telescopic rod and the telescopic end of the second telescopic rod correspondingly. The device has the advantages that the base, a slide rail, a gear ring and the rust removal rings in a spliced mode sleeve the outer side of the lamp pole, the first telescopic rod and the second telescopic rod push the rust removal rings to designated rust removal positions, a rotary motor is used for sequentially driving a circular gear and the gear ring to rotate so as to drive the rust removal rings to rotate so as to perform rust removal on the surface of the lamp pole.

The invention discloses a rust remover for mechanical equipment. The rust remover comprises, by weight, 40%-65% of sulfamic acid, 1% of sulfuric acid, 0%-5% of ammonium bifluoride, 20%-35% of phosphoric acid, 0.5%-2.0% of ethylene diamine tetraacetic acid, 0.05%-0.5% of calcium hypophosphite, 0.5%-2.0% of hexamethylenetetramine, 0%-0.2% of copper salt, 5%-15% of sodium dodecyl benzene sulfonate, 0%-0.4% of coconut acyl monoethanolamine, 0%-0.3% of isothiazolinone, and 15% of chromic anhydride. According to the rust remover for the mechanical equipment, the process is simple, the shape, the surface gloss and the precision degree of the mechanical equipment are free of any influence, and the rust removing effect is good.

The invention relates to fertilizers and particularly relates to a rust-removing efficient organic fertilizer for ginseng. The rust-removing efficient organic fertilizer comprises the following raw materials in parts by weight: 2-5 parts of quicklime, 1-2 parts of perilla seed, 8-15 parts of perilla seed meal, 8-15 parts of bean meal and 15-25 parts of deer manure. Through observations, after the rust-removing efficient organic fertilizer is applied to the ginseng, particularly to forest ginseng, the rust preventing and removing effect is obvious, the soil acidification is alleviated, and the physical and chemical properties and bioactivity of soil are improved; and shown by multi-year controlled fertilization for the forest ginseng of the same land parcel, the surface of the forest ginseng of the land parcel where the rust-removing efficient organic fertilizer is applied is not rusted, the ginseng body is bleached and has many rootlets, and the rust removing effect is very good, so that the rust-removing efficient organic fertilizer is beneficial to the growth of the forest ginseng, and the yield and quality of the ginseng are improved.

The invention discloses a metal rust remover. The metal rust remover consists of the following components in percentage by weight: 10-30 parts of acetic acid, 2-10 parts of trisodium phosphate, 10-30 parts of ethylene diamine tetraacetic acid, 50-100 parts of citric acid, 5-50 parts of lauryl sodium sulfate and the balance of de-ionized water. The metal rust remover is reasonable in formula, good in rust removal effect and high in rust removal efficiency; and the metal rust remover can rapidly remove oil stain and rust from the surface of metal, and is free from corrosion to the metal.

The invention discloses a lifting mechanism of a grinding tool of a vertical grinding machine, and relates to the technical field of grinding equipment. The lifting mechanism of the grinding tool of the vertical grinding machine solves the problems that most existing lifting mechanisms can only perform friction rust removal on pipelines in the horizontal direction, and the one-way friction motionrust removal effect is poorer. The lifting mechanism of the grinding tool of the vertical grinding machine comprises a main base, the base comprises supporting legs and a three-fork support, wherein the whole base is of a cross-shaped structure, the four supporting legs are symmetrically supported at the top ends of the four corner positions of the base, the three-fork support is supported and welded among the bottom sections of the four supporting legs, a motor is locked and fixed at the top end of the three-fork support, a positioning ring is welded and supported at the topmost ends of the four supporting legs, and a tray is installed on the top end sections of the four supporting legs in a sliding sleeve manner. According to the lifting mechanism of the grinding tool of the vertical grinding machine, through fluctuation pushing fit of a vertical supporting sawtooth plate and a poking rod, the poking rod and a sliding sleeve can be pushed to slide front and back along a hexagonal prism rod when the tray slides up and down, and sliding power is provided for a brush sleeve.

The invention relates to a water-based antirust agent for metals. The water-based antirust agent comprises, by weight, 50 to 70 parts of inositol hexaphosphate, 10 to 20 parts of sodium citrate, 5 to 10 parts of sodium hydrosulphite, 15 to 20 parts of sodium dodecyl benzene sulfonate, 10 to 15 parts of zinc sulfate, 2 to 4 parts of glycerin and 5 to 10 parts of hydrochloric acid, with the balance being water. The invention has the following beneficial effects: the water-based antirust agent is applicable to long-term antirust treatment of steel and a variety of non-ferrous metals, and has substantial derusting effect and low cost.

The invention relates to the technical field of chemical engineering and provides a dust remover for a copper product and a preparation method therefor. The dust remover for the copper product is composed of the following components in parts by weight: 12-16 parts of ethidene diamine, 12-16 parts of benzoic acid, 20-24 parts of isocaprylic acid, 10-14 parts of capric acid, 10-14 parts of cyclohexylamine, 8-16 parts of fatty alcohol-polyoxyethylene ether, 6-10 parts of alkylphenol polyoxyethylene, 7-11 parts of diethylene glycol monobutyl ether, 4-12 parts of modified thiourea, 6-14 parts of ethylenediamine tetraacetic acid disodium, 6-16 parts of an acrylate emulsion, 10-14 parts of potassium sorbate, 8-12 parts of isopropanol and 20-24 parts of deionized water. The dust remover for the copper product is short in dust removing time and good in dust removal effect, and the copper product without rust is unlikely to be secondarily rusted. The dust remover for the copper product is wide in component source, simple in preparation process and suitable for being popularized in the field.

The invention provides an environment-friendly corrosion-prevention metal oil-rust removing agent and a preparation process thereof. The oil-rust removing agent is prepared from the following components in parts by weight: acetic anhydride, itaconic acid, 1,3-butylene glycol, oleic acid, nano-zirconia, 8-hydroxyquinoline, boric acid, caprolactam, nano-cerium oxide powder, disodium ethylene diamine tetraacetate, saponin powder, heterogeneous alcohol polyoxyethylene ether, matrine, methylisothiazolinone, thiourea, 3-amino-4-octanol, sodium citrate, deionized water and ethanol. The oil-rust removing agent provided by the invention has an integral oil-rust removing effect, the rust removing time is only 5-10 minutes, the surface of metal is bright and has no obvious rust trace after the rust removing treatment, obvious rust spot or rust trace is not generated after the metal which is subjected to oil-rust removal is placed at the room temperature for 1 month, and the metal is good in corrosion resistance, does not secondarily rust within 2 months and does not generate smoke, so that the oil-rust removing agent is safe to use, environmentally friendly and suitable for being popularized and used.

The invention relates to a hardware rust removal device capable of recovering iron filings. The first base plate and the second base plate are connected up and down through a support block; the lower end of the first base plate and the upper end of the second base plate are respectively provided with first slide rails and the second slide rail, and both the first slide rail and the second slide rail are equipped with a slidable grinding assembly; any one side of the support block is installed with a third slide rail; the third slide rail is provided with a telescopic cylinder; The front end of the cylinder is provided with a U-shaped electromagnet; the lower end of the first substrate is provided with a frosted component; one side of the second slide rail is provided with a housing frame inserted on the second substrate through a positioning rod; the material of the housing frame is a magnet, And its inner wall is provided with a plurality of air injection ports; the lower end of the accommodation frame is provided with a support cylinder on the second base plate, and the telescopic rod of the support cylinder passes through the center hole of the accommodation frame and is connected with the circular electromagnet; the second base plate There is also a sealing assembly on the machine, which can remove rust around the workpiece, and can also collect iron filings generated during the removal of iron filings.

The invention discloses an antirust and anticorrosive fitness equipment primer and a preparation method thereof. The antirust and anticorrosive fitness equipment primer comprises a component A and a component B, wherein the component A includes the following materials: modified epoxy resin, polyvinyl alcohol, sorbitan monooleate, fatty glyceride, tricresyl phosphate, triethanolamine, xylene and bentonite; and the component B includes the following materials: a polyurethane prepolymer, didecyl phthalate, a water removal agent, titanium dioxide, a silane coupling agent A-187 and stannous octoate. The antirust paint provided by the invention is obtained by mixing the component A and the component B, the two components are used cooperatively to achieve a good antirust and anticorrosive effect,also the adhesion is strong, which is determined by the proportion of the components, specifically, cooperative use of all the assistants in the component A not only has good compatibility, but alsocan generate a synergistic superposition of antirust function, the film-forming time is short, the formed film is firmly adsorbed, and in a room temperature environment, water vapor does not seep intometal surfaces, therefore the primer has a good rust removal effect.

The invention discloses high-efficiency type rust removal liquid. The rust removal liquid is composed of 1.8-2.8 kg of 60-mesh glass beads, 40-60 g of washing powder, 1.9-2.4 kg of rust-proof liquid and 45-65 kg of water. Due to the adoption of the high-efficiency type rust removal liquid mentioned above and a use method of the high-efficiency type rust removal liquid, dirt on the surfaces of workpieces is rapidly removed, and pollution to the environment is little.

The invention discloses a textile rust remover and a preparation method thereof. The textile rust remover is composed of oxalic acid, citric acid, acetic acid, sodium nitrite, an alkoxy compound, ammonium bicarbonate, ammonium benzoate, hydroxyethylmethyl cellulose, trisodium phosphate, triethanolamine, ethanol, acetone and deionized water. The product is a solution which is convenient for being placed in a container according to the requirement, and can be taken out for scrubbing the part to be rust-removed on the surface of textile, for the textile with batch rust-removal, the product can be used for directly immersing the textile, deionized water is used for repeatedly flushing the textile, so that good rust removal effect is achieved, and the surface of the textile is not damaged due to the textile rust remover. The preparation method has the advantages of simple process and low cost, and is suitable for production under a factory mode.

The invention discloses a large-size pipe surface rust removal device for pipe machining and a rust removal method thereof. The large-size pipe surface rust removal device comprises a base assembly, wherein a top seat assembly is fixedly arranged at the top of the base assembly, the base assembly comprises a base plate, two first mounting pieces are welded to the two sides of the top of the base plate, and a first threaded rod and a first sliding rod are arranged between the two first mounting pieces on the two sides correspondingly. According to the large-size pipe surface rust removal devicefor pipe machining and the rust removal method thereof, a rubber skin and the inner wall of a steel pipe are in friction to realize connection, a third driving motor drives a hollow circular plate torotate, then the steel pipe is driven to rotate by 360 degrees without dead angles, meanwhile, a spray gun moves transversely, then the steel pipe is subjected to all-around rust removal operation without dead angles, the rust removal effect is good, meanwhile, the fixing operation of the pipe is simple and convenient, and the pipe can be conveniently fixed and rotated.

The invention discloses a metal rust remover which is composed of, by mass, 5-7 parts of ammonium hydroxide, 15-25 parts of quartz sand, 8-10 parts of sodium iodide, 8-10 parts of coconut oil fatty acid, 6-8 parts of thiourea, 7-9 parts of hexadecyl benzene sulfonate, 1-3 parts of a corrosion inhibitor, 3-5 parts of dextrin, 20-30 parts of vinegar and 600-800 parts of deionized water. The metal rust remover does not contain inorganic acid, has no influences on health of the human body, does not corrode the environment, and is safe and reliable in performance and good in rust removal effect,

The invention discloses a coiled tube type heat exchanger. The coiled tube type heat exchanger comprises a solvent mixture inlet, a main body and a solvent mixture outlet, wherein the solvent mixture inlet is formed in the left side of the main body, the solvent mixture outlet is located at the lower end of the right side of the main body, a cylindrical cavity is formed in the main body, a cooling liquid inlet is formed in the lower end of the left side of the main body, and simultaneously a cooling liquid outlet is located on the upper right of the main body, a plurality of coiled tubes are connected between the cooling liquid inlet and the cooling liquid outlet, intervals are arranged among the coiled tubes, the diameter of each coiled tube is less than the diameter of the main body, the center line of the coiled tubes and the center line of the cavity of the main body are located on the same horizontal line, an ultrasonic rust removal device is further arranged on the inner wall of the main body, the ultrasonic rust removal device comprises ultrasonic reactors and ultrasonic receivers, the number of the ultrasonic reactors is larger than 1, the ultrasonic reactors are located on the inner wall of the upper side of the main body, the number of the ultrasonic receivers is correspondingly larger than 1, and the ultrasonic receivers are located on the inner wall of the lower side of the main body. The coiled tube type heat exchanger is good in heat exchange effect, simple and convenient in rust removal, and high in work efficiency.

The invention discloses a steel surface rust removal device for waste steel treatment. The steel surface rust removal device for waste steel treatment comprises a rack I, a dust suction device and a cooling device, wherein a rack II is fixedly connected to the outer wall of the top of the rack I; a first motor is fixedly connected to the outer wall of one side of the rack II; a conveying roller isrotatably connected to the position, located between the inner walls of the rack II, of an output shaft of the first motor; and two first mounting plates are fixedly connected to the outer wall of the top of the rack II. The first motor is started to drive the conveying roller to rotate, the conveying roller drives steel to move forwards, rust on the surface of the steel is removed through cooperative use of a first steel brush roller and a second steel brush roller, and a third motor is started to drive a third steel brush roller to rotate so as to remove rust on the two sides of the steel.The device facilitates rust removal on the surface of the steel, and meanwhile, rust removal is carried out on the side surface of waste steel, so that rust removal on multiple surfaces of the steel can be carried out, and a rust removal effect is better.

The invention discloses a pipe maintenance device capable of removing corrosion rust of inner wall gullies, and belongs to the technical field of pipe maintenance. The pipe maintenance device capable of removing corrosion rust of the inner wall gullies comprises a base, a square groove is formed at the position, opposite to the left end of a supporting column, of the outer wall of a fixing plate located at the right side, a fixing shaft is fixedly arranged at the position, opposite to the center of a grinding column, of the middle of a cavity, and the outer wall of the fixing shaft is linearly sleeved with a plurality of rotating discs at equal intervals; and a plurality of tooth grooves are annularly formed in the circumferential outer walls of the rotating discs at equal intervals, a plurality of bevel gears are annularly arranged at the left sides of the rotating discs at equal intervals, the outer side ends of the bevel gears are coaxially and fixedly connected with shaft centers, extension rods are inserted into the outer side ends of the shaft centers, grinding balls are coaxially and fixedly connected to the outer side ends of the extension rods, and the extension rods are sleeved with compression springs. According to the device, the pipe inner wall gullies and grooves can be ground, the comprehensiveness of maintenance and rust removal work is guaranteed to the maximum extent, hidden dangers generated by rusted parts which are difficult to ground in the gullies and the grooves are eliminated, and the practicability is high.

The invention discloses a ship rust removal device, and relates to the technical field of ship rust removal, the ship rust removal device comprises a movable base, a fixed support and a side support, the fixed support is of an inverted L-shaped structure, the fixed support is fixed on the top surface of the movable base, and a lifting table and a lead screw lifting mechanism for driving the lifting table to work are arranged in the fixed support; two guide rods capable of moving front and back are arranged on the front side of the lifting table in a bilateral symmetry mode, the front ends of the two guide rods are rotationally connected with the side support, two electric push rods are further installed between the lifting table and the side support, two rotating tooth rollers are installed at the two ends in the side support, and an adjusting tooth roller is arranged in the middle in the side support. A second motor connected with one rotating tooth roller is installed at one end of the top face of the side support, and a transmission crawler belt is connected between the two rotating tooth rollers in an engaged mode. According to the ship surface rust removal device, the horizontal inclination of the grinding piece can be adjusted, so that the grinding piece is suitable for the inclined ship surface and the surface with hole channels and gaps, rust removal on the ship surface is more convenient, and the rust removal effect is better.

The invention provides a rust removal detection device for environment-friendly fire hydrant based on Internet of Things. The tail end of a supporting rod is movably connected with a movable plate, pasting discs are fixedly installed on the left side surface and the right side surface of the rear surface of the movable plate correspondingly, rotating plates are attached to the upper surfaces of the pasting discs, and the rotating plates are rotationally installed in a box body; and a valve cylinder is fixedly mounted on the front surface of each rotating plate, and a rust removal sheet is slidably mounted in the valve cylinder. A hose is connected into a fire hydrant, a connecting plate drives a movable plate at the tail end of a supporting rod to swing during rotation, and when the movable plate swings, a clamping column on the rear surface of the movable plate slides in a sliding hole formed in a rotating plate to drive the rotating plate to sequentially rotate left and right, so that the fire hydrant in a valve cylinder is driven; the fire hydrant swings left and right along the track of an arc-shaped plate; meanwhile, rust removal is conducted on the joint of the valve in the valve cylinder and the fire hydrant through the rust removal piece, rust removal can be conducted on the joint of the valve while detection is conducted, and the rust removal effect is obvious.

The invention relates to neutral environmental-friendly type rust removal liquid and belongs to the technical field of metal surface treatment. A rust remover in the rust removal liquid comprises, by mass, 5-15% of 2,3-dihydrobutanedioic acid, 5-15% of cocoanut fatty acid diethanolamide, 3.5-13.5% of phenol alkylphenol ethoxylates, 40-60% of sodium tetra sulfonate, 5-15% of sodium carbonate decahydrate, 0.5-2% of acetic acid and 5-15% of sodium bicarbonate. After water is added for mixing, the dust remover accounts for 15-25% of the total volume of the rust removal liquid. The environmental-friendly type rust removal liquid with the pH value being 6.5-6.8 is neutral, has good permeability and generates the contact foaming effect on an object. Therefore, when the rust removal liquid is used for cleaning and rust removal, the permeating foaming effect on rust and scale cinder on the surface of a black metal workpiece is achieved, so that the rust and the scale cinder are peeled off physically and sink at the bottom of a rust removal liquid storage tank; and therefore the rust removal effect is good, the cleaning and rust removal capacities can be lasted, and the service life is long.