102results about How to "Avoid transshipment" patented technology

The invention belongs to the field of nonwoven fabric production processes and particularly relates to an online continuous production process of degreased cotton spunlace nonwoven fabric. The process fitly connects a degreased cotton step and a spunlace nonwoven fabric production step, the degreased cotton is dried and then fed directly into a spunlace nonwoven fabric mixing bin for seamless connection production, transfer cost for the degreased cotton is avoided, and pollution is avoided. Raw cotton is made into spunlace nonwoven fabric that is directly subjected to pressing for degreasing and bleaching, washing, and drying, a continuous mode is formed, and product transferring and deformation are avoided; the product yield can be greatly increased.

The invention relates to the technical field of bulk fresh water fish culture, and provides a salinization weight-reducing bighead carp culture method. Selected bighead carps are subjected to pond recuperation and salinization culture, and the bighead carps discharge vivotoxin while swimming by the aid of flowing water so as to remove redundant fat; the bighead carps with weight reduced are subjected to salinization culture with appropriate salinity, harvested bighead carps are good in meat quality, delicious and high in economic value, and cultured bighead carps are bright in body color, strong, free of muddy taste, less in fat and chemical residue, good in taste and high in quality.

The invention discloses a household garbage sorting process. The household garbage sorting process comprises the steps of sequentially carrying out household garbage large piece sorting, household garbage bag breaking treatment, garbage primary sorting, garbage fine sorting, organic matter fine sorting and the like. The invention further discloses a household garbage sorting system, wherein the household garbage sorting system comprises a large piece sorting table, a garbage storage pit, a bag breaking machine, a first manual sorting chamber, a first magnetic separation device, a second-stagerotary screen, a second manual sorting chamber, an organic matter fine sorting system and a plastic packaging machine which are sequentially connected through a conveying device. According to the process and the system disclosed by the invention, the household garbage is separated according to the respective differences through the combination of a screening device and the manual sorting, so thatthe effective separation of the whole components of the garbage is realized; and meanwhile, the sorted organic matters are further subjected to fine sorting, the obtained organic matter raw materialsare high in purity, the organic matter productivity is increased, the subsequent organic matter fermentation resource utilization is facilitated, and the recyclable resources in the waste can be fullyrecycled.

The invention discloses a water-based drilling soft solid waste recycling treatment and utilization technology. The water-based drilling soft solid waste recycling treatment and utilization technologycomprises the steps that drilling soft solid waste is mixed evenly, a microorganism strain with a decomposing effect is inoculated at the proportion of 0.5%-1% by weight, and even mixing is carried out; then, a microorganism nutrient of 0.5%-2% of the solid waste by weight is added and mixed evenly, and the mixture is evenly mixed with soil with the water content of 15%-20%, wherein the mixing proportion of the solid waste and the soil is 1:(0.5-3) by weight; and the treated mixture is stacked, plants are planted or grass seeds are cast in the mixture, and a microorganism-soil-plant united system is used for decomposing treatment of organic pollutants in the drilling soft solid waste. By means of the water-based drilling soft solid waste recycling treatment and utilization technology, COD, Oil and other substances in the drilling work soft solid waste can be effectively decomposed and removed, part of the organic pollutants are decomposed into simple inorganic substances, and part ofthe organic pollutants are decomposed into humus, so that pollutants in the solid waste are removed, and the purposes of harmlessness and recycling utilization of the solid waste are achieved.

The invention discloses a portable box for storing a fixing agent and relates to the technical field of fixing agent storage. The portable box comprises a lockable box body and a box cover. A handle is mounted on the box cover, the inner part of the box body is a cavity, round magnetic plates are uniformly mounted in a spaced manner on a bottom plate in the box body, reagent bottle locking seats are mounted on the periphery of the round magnetic plates, a supporting table is mounted in a position, 4-5 cm, far away from the bottom plate, on the inner wall of the box body, an acid and alkali-resistant rubber blanket is mounted on the supporting table, a rubber gasket corresponding to the cavity of the box body is arranged on the inner side of the box cover, a magnetic plate integrally formedwith a reagent bottle is arranged at the bottom of the reagent bottle, and a recognizing identifier is attached to the reagent bottle body. The portable box is small in structure and convenient to carry, the fixing agent reagent bottle is mounted inside conveniently, and the fixing agent is effectively prevented from being swung and scattered in transferring and using processes, and meanwhile, the portable box is relatively high in acid and alkali resistance, is relatively low in cost, long in service life and suitable for being popularized and applied.

The invention discloses a steel pipe with ultrahigh strength and a continuous production method of the steel pipe. The continuous production method is suitable for producing steel pipes with ultrahigh strength, pipe diameters of 20-51mm and wall thickness of 1.5-2.5mm. The steel pipe is prepared from the following components by mass percent: 0.20-0.40% of C, 0.30-1.50% of Mn, not more than 0.80% of Si, not more than 0.60% of Cr, 0.01-0.06% of Ti, 0.0008-0.0050% of B, 0.015-0.050% of Al and the balance of Fe and inevitable impurities. After adopting the above raw materials, the steel pipe can be produced by adopting a common welded pipe mill and online continuous heat treatment. The obtained welded steel pipe has ultrahigh strength and avoids the process scheme that a high strength steel plate is used as the raw material and the pipe is prepared by welding the high strength steel plate by adopting laser after roll forming of the high strength steel plate, thus greatly reducing the production cost. The mechanical properties of the obtained steel pipe with ultrahigh strength are as follows: the tensile strength is not less than 1500MPa, the yield strength is not less than 1200MPa and the elongation is not less than 6%. In the method, a heat treatment production line is installed behind a welding production line and the welding speed is matched with the heat treatment speed by adjusting the heat treatment speed, so that continuous production can be achieved, the production operability can be effectively improved and the production time and operation strength can be saved.

The invention relates to a nondestructive testing method for debonding defects of a solid rocket engine interface, and the method combines an electromechanical impedance method and a frequency response function method and is used for testing a solid rocket engine combustion chamber interface. The method comprises the following steps of forming a detection system by using a universal equipment NI multi-channel high-speed data acquisition device, a PCB force hammer, a sensor and the like; knocking the surface of a structure to be detected by using the force hammer to provide a pulse-shaped force; and measuring a time domain waveform of a response signal through a signal acquisition program to obtain a frequency response function curve of an engine heat insulation layer / lining layer / propellant interface so as to judge whether the interface structure is intact. The method is used for the flexible and rapid nondestructive detection of the debonding defects of the interface of the solid rocket engine propellant / lining layer / heat insulation layer of the composite fiber material with the diameter of about 2000 mm, particularly for an integrally assembled product, the detection can be realized on a storage site without decomposition, the method has the characteristics of convenience and high efficiency, and the nondestructive testing method is suitable for the rapid inspection of the debonding defects of the interface of the integrally assembled product.

The invention relates to the field of printing, and discloses a combined spray printing method. The combined spray printing method comprises the steps that S10, at least two ink jetting devices are prepared, wherein the ink jetting devices can independently move and can independently perform spray printing action; S20 at least two media to be subjected to spray printing are prepared, wherein the number of the media is not smaller than the number of the ink jetting devices; S30, a first ink jetting device performs spray printing on the media one by one; S40, a second ink jetting device performs second-time spray printing on the media subjected to first-time spray printing of the first ink jetting device; S50, an Nth ink jetting device performs Nth spray printing on the media subjected to (N-1)th spray printing of an (N-1)th ink jetting device; and S60, after all the ink jetting devices complete spray printing, spray printing is over. According to the combined spray printing method, uninterruptible spray printing of ground colors and patterns can be achieved on one device, a plurality of devices such as a silk screen printing machine and an ink jet printing machine do not need to be purchased, and the enterprise cost is reduced.

The invention provides a dredging type silt cleaning device. The dredging type silt cleaning device comprises a ship body, a lifting conveyor belt, a dredging mechanism and a transfer mechanism; the dredging mechanism comprises supporting rods, a sliding block, a sleeve, a lead screw, a connecting shaft, a shovel plate, torsional springs, a big gear, a small gear and a motor; the sliding block isinstalled on the ship body through the supporting rods; one end of the lead screw is installed on the ship body, the other end of the lead screw penetrates through the sleeve and the sliding block, and the lead screw is in power connection with the motor; the shovel plate is rotatably installed on the sliding block through the connecting shaft; and the transfer mechanism is fixedly installed on the ship body. The rotation movement between the lead screw and the sleeve is transformed into linear movement, and then the shovel plate is pushed to dredge silt; the shovel plate can rotate around thesliding block, and then the shovel plate is folded when the shovel plate move towards a silt stack; the shovel plate is prevented from generating counter-acting force by being in contact with the silt stack, and then it is ensured that the ship body cannot tempestuously waggle when dredging is carried out; and the silt is automatically transported outside of the ship body through the transfer mechanism, and the dredged silt is prevented from being transferred through manual work.

A smelting system for an alloy comprises a smelting furnace, a cooling furnace and a base, all of which are sequentially arranged from top to bottom. The base is provided with a control system controlling work of the whole system. A cooling furnace cavity is internally divided into a plurality of air flues from top to bottom in sequence. The air flues, from top to bottom, in the furnace cavity are mutually matched to form a die cooling zone. The air flue temperature in the cooling zone is gradually reduced. The air flues are inflated with constant-temperature air through a constant-temperature air supply system. The temperature of the constant-temperature air is controlled so as to control the cooling rate of the die when the constant-temperature air exchanges heat with a metal solution in the die. The cooling furnace is arranged below the smelting furnace, the die is controlled to enter the cooling furnace through a hydraulic cylinder, and die transferring is avoided; meanwhile, the different air flues are arranged in the cooling furnace, the die is subjected to staged cooling in the different air flues, and accordingly the cooling rate is controlled.

The invention discloses a machining process for metal pipes with punched holes. A supporting plate is arranged on a hole punching tool operation platform, a horizontal pipe sleeve core column is arranged on the supporting plate, a transverse connecting plate is arranged at the upper end of the supporting plate, a cam is arranged on the transverse connecting plate through two vertical upward cam connecting blocks, and a handle is arranged on the cam. A punch mounting mechanism consisting of a stress plate and a punch fixing seat is arranged under the cam, a punch is arranged on the punch fixing seat, and a positioning mechanism is arranged on the pipe sleeve core column. During machining, a metal pipe is clamped on a feeding tool at first, one end of the metal pipe sleeves the pipe sleeve core column and is propped against the positioning mechanism, and then a knife on the feeding tool is started to cut the metal pipe; and while cutting, an operator pulls the handle of a hole punching tool with hands, so that the punch is pushed to finish hole punching of the metal pipe. By the machining process for the metal pipes with the punched holes, feeding and hole punching of the metal pipes can be finished on one working procedure, and only one operator is required.

The invention discloses an in-situ soil remediation treatment device. The in-situ soil remediation treatment device comprises a vehicle body, a soil digging device and a water pump, a rotating grooveframe is arranged above the vehicle body, the right side of the rotating groove frame is hinged to the upper end face of the vehicle body through a hinge piece, the soil digging device is arranged atthe rear end of the rotating groove frame, the soil digging device comprises a fixing cylinder, the inner side of the fixing cylinder is fixedly connected with a longitudinal tube, the longitudinal tube is perpendicularly and fixedly connected with the rotating groove frame. According to the device, the soil digging device composed of the fixing cylinder, a rotating cylinder and a soil digging bucket is arranged, so that soil is collected in situ and is crushed through a crushing blade roller, then the soil can be conveniently and subsequently mixed with a soil remediation liquid, the soil canbe prevented from being transferred, and the remediation cost is low; and a spiral material roller and a drip irrigation head are arranged, so that the soil remediation liquid and the soil are fullymixed, the mixing uniformity is improved, and the soil remediation effect is improved.

The invention discloses a special tool for motor stator transfer. The special tool comprises a paint dipping tool for placing a single motor stator and a lifting tool. The lifting tool comprises a tool body including a lower support plate assembly, a hoisting device at the top, a plurality of vertically arranged support columns, a plurality of limiting blocks and an upper support plate assembly, wherein, a plurality of paint dipping tools can be placed on the upper support plate assembly and the lower support plate assembly for batch transfer of paint-dipped motor stators. The hoisting tool with a cage structure can be arranged and a plurality of paint dipping tools can be directly loaded, thus effectively solving the transferring between paint dipping and drying processes and ensuring production requirements; meanwhile, the tool is divide into upper and lower layers and the upper layer is movable so that batch transferring can be met, the problem of single transferring can be completely solved and the production efficiency is improved; moreover, the overall structure of the tool is a cage structure, the structure is simple, the manufacturing is convenient and the stability is good.

The invention provides a tunnel ditch cable trough construction trolley which comprises a truss and a traveling system installed below the truss. The tunnel ditch cable trough construction trolley further comprises side wall die set devices, cable die set devices and ditch die set devices. Each side wall die set device comprises a side wall die set, a first oil cylinder and a second oil cylinder, wherein the two ends of the first oil cylinder are hinged to the side wall die set and the truss correspondingly, and the two ends of the second oil cylinder are hinged to the side wall die set and the truss correspondingly. Each cable die set device comprises a cable die set and a third oil cylinder, and the two ends of the third oil cylinder are hinged to the cable die set and the truss correspondingly. Each ditch die set device comprises a fourth oil cylinder, two oppositely arranged wedge-shaped die sets and an adjusting unit, wherein the adjusting unit comprises a bearing beam, an adjusting hand wheel and two oppositely arranged threaded rods, the two ends of the fourth oil cylinder are hinged to the truss and the bearing beam correspondingly, the adjusting hand wheel is arranged on the bearing beam, and each threaded rod is connected between the adjusting hand wheel and the corresponding wedge-shaped die set. The construction trolley has the advantages that the construction quality is high, and the demolding time is short.

The invention discloses high-strength pervious concrete and a preparation method thereof. The high-strength pervious concrete is prepared from Portland cement, modified coarse aggregate alkali-resistant glass fibers, a reinforcing agent, polyacrylamide, gravel, yellow sand, water absorption gel, an expanding agent, an adhesive and a water reducing agent. According to the invention, a preparation cavity, a first mixing tank, and a second mixing tank are arranged on the preparation table. Gravels, Portland cement, yellow sand, modified coarse aggregate, polyacrylamide and alkali-resistant glassfibers are stirred and mixed through the preparation cavity to obtain a preparation base material A, and a pair of reinforcing agents, water absorption gel, an expanding agent, an adhesive and a waterreducing agent in a mixing tank are stirred and mixed to obtain an auxiliary base material B; the preparation base material A is guided into the second mixing tank through the conveying belt, the auxiliary base material B is guided into the second mixing tank through the spiral conveying cylinder, the second mixing tank mixes the preparation base material A and the auxiliary base material B to prepare the pervious concrete, in the preparation process of the pervious concrete, manual transfer of raw materials for preparing the raw materials is avoided, and the production cost of enterprises isreduced.

The invention discloses a garbage carrying van with a fixed platform.The garbage carrying van comprises a driving device, a hydraulic power steering axle, a bearing axle, a speed reductor, a frame and tires, wherein the hydraulic power steering axle and the bearing axle are welded to the frame through a fixed connecting plate; the frame comprises a garbage can and a sewage tank, the sewage tank is located below the garbage can, a cleaning pipe is welded to the front end of the sewage tank, a seal cover is arranged on the cleaning pipe, and the bottom of the garbage can inclines toward one side of the sewage tank.The garbage carrying van is free of pollution, low in noise and capable of transferring heavy garbage materials (articles) according to user requirements.

The invention discloses an anti-deformation aluminum alloy door and window frame transporting device, relating to the technical field of transportation, and the transporting device includes a supportplate, the upper surface of the support plate is fixedly connected with the lower surface of the transfer housing, the front side and the back side of the transfer case are clamped with a rotating device, one end of the front side and one end of the back side of the rotating device are fixedly connected with the back side of the first movable rod and the one end of the front side of the threaded column, the outer wall of the threaded column is threadably connected with a threaded cap, and the left and right sides of the threaded cap are fixedly connected with the opposite faces of the two connecting rods respectively. The anti-deformation aluminum alloy door and window frame transporting device realizes the fixation of aluminum alloy door and window rack with different sizes through the joint action of a first movable rod, a rotating shaft, a bearing, a threaded column, a threaded cap, a connecting rod, a fixing plate and an extrusion plate, thereby avoiding the sloshing damage of thealuminum alloy door and window rack in the transportation process and avoiding the loss of people.

The invention discloses a pipe end facing machine. The pipe end facing machine comprises a machine station, wherein a left end facing device is fixed at the left end of the machine station; a right end facing device capable of sliding leftwards and rightwards is arranged at the right end of the machine station; a feeding device for radially conveying pipes is arranged between the left end facing device and the right end facing device on the machine station. The pipe end facing machine can load materials automatically and can cooperate with a pipe production line for use.

The invention provides a ditch cable trough construction trolley, a construction method thereof and a cable die set device for a tunnel. The cable die set device comprises a first oil cylinder and a cable die set. The end of the first oil cylinder is hinged to the cable die set. The cable die set comprises a positioning clamp, a positioning set square, an adjusting nut and a lead angle pipe, wherein the positioning clamp is fixedly connected with the cable die set and provided with a through hole and a through groove; the lead angle pipe comprises a positioning part and a connecting part connected with the positioning part; the positioning part penetrates through the through hole and is fixedly connected with the adjusting nut; and the positioning set square penetrates through the through groove and is connected between the lead angle pipe and the positioning clamp in an adjacent mode. The invention further provides the ditch cable trough construction trolley provided with the cable die set and the construction method of the construction trolley. Both the cable die set device and the construction trolley have the advantages that the construction quality is high, and the demolding time is short; and in addition, by applying the construction method of the construction trolley, the construction precision of a tunnel cable trough can be improved, the demolding time is shortened, and the construction period is shortened.

The invention relates to the technical field of medical instruments, in particular to an epidemic site patient transfer device which comprises a main support, a bottom plate and a lifting plate, universal wheels are fixedly mounted at the four lower ends of the main support, a placement basket is fixed to the left side of the main support, and the bottom plate is fixedly mounted at the upper end of the main support. Lifting assemblies are symmetrically arranged on the two sides of the interior of the bottom plate, a driving assembly is arranged below the bottom plate, a lifting plate is arranged above the bottom plate, and two sets of guardrails are symmetrically and fixedly installed on the surfaces of the two sides of the lifting plate. The movable bed plate can be pulled out from the left side of the lifting plate by pulling a handle, and after one end of the movable bed plate is pulled into the carriage, the guide wheels make contact with the surface of the carriage, so that the movable bed plate is completely pulled into the carriage conveniently, patient transfer is completed at the moment, and the situation that a traditional manual carrying mode is adopted for patient transfer is effectively avoided; furthermore, manpower is saved to a certain extent, and the transfer efficiency of the patient is improved.

The invention discloses an aluminum-plastic plate punch forming device, and relates to the field of punch forming devices. In order to solve the problems that an existing punch forming device cannot integrate hole forming and deforming, cost is greatly increased and production efficiency is reduced, the scheme is not put forward. The aluminum-plastic plate punch forming device comprises a base. The left side and the right side of the base are each provided with a supporting frame. A first hydraulic rod is arranged on the upper surface of the base. The output end of the upper side of the firsthydraulic rod is fixedly connected to the lower surface of a punching machine. A bolt is arranged at the lower end of the punching machine. A punching block is fastened and connected to the punching machine through the bolt. The sides, close to each other, of the supporting frames on the left side and the right side are each provided with a slide groove. Each slide groove is internally provided with a motor case. The aluminum-plastic plate punch forming device has multifunctionality, can conveniently perform punch deforming and hole punching on an aluminum-plastic plate, and avoids transferring and greatly improves production efficiency since operations are performed on the same machine.

The invention relates to the technical field of stevioside processing, in particular to a crystallization system and method for stevioside processing. The invention aims to solve the problem that a crystallization device for stevioside processing in the prior art is inconvenient to operate. The crystallization system comprises a base, a crystallizing tank and a filtering tank installed at the top of the base, supporting columns rotationally connected to the top of the base, a top plate fixed to the tops of the supporting columns, a hydraulic cylinder installed on the top plate and a sealing cover installed at the extending end of the hydraulic cylinder, wherein a top cover is installed at the top of the crystallizing tank, the crystallizing tank is installed at the top of the base through two supporting plates, the bottoms of the two supporting plates are fixedly connected with the top of the base, and the crystallizing tank is located between the two supporting plates. The crystallization system is reasonable in structure and easy to operate, reduces operation difficulty in a stevioside crystallization process, decreases time consumed by the crystallization process, also lowers the operation difficulty of workers, and is easy to popularize and use.

The invention relates to the technical field of medical waste treatment, in particular to a waste mask centralized destroying device. The waste mask centralized destroying device comprises a main shell, wherein a combustion cavity is integrally formed in the main shell, and a residue discharging cavity is formed in the position, corresponding to the bottom of the combustion cavity, of the main shell; and the combustion cavity and the residue discharging cavity are separated through a filter screen plate used for filtering ash generated after mask is combusted, and an air pressure detection sensor and a second temperature detection sensor are fixedly arranged at the positions, corresponding to the upper end of the combustion cavity, of the main shell through bolts. The waste mask centralized destroying device has the beneficial effects that the waste mask can be automatically incinerated only by putting the waste mask into the combustion cavity and starting an automatic incineration program by an operator, the waste mask can be thoroughly incinerated in the automatic incineration process, and tail gas treatment and heat recovery can be carried out on waste gas generated after incineration so that air pollution can be effectively reduced, and the energy utilization efficiency can be improved.

The invention relates to the technical field of traditional Chinese medicinal material processing equipment, in particular to a traditional Chinese medicine raw material efficient smashing and grinding device. The device comprises a machine frame, a fixing cylinder, a driving motor, a smashing and grinding cylinder and a vertical roller. The outer roller surface of the vertical roller and the inner wall of the smashing and grinding cylinder are combined in an encircling mode to form an annular material channel, and the annular material channel comprises a cutting section, a smashing section and a grinding section from top to bottom. A driving gear and a driving belt pulley are coaxially arranged and are arranged on an output shaft of the driving motor, the driving gear penetrates through the fixing cylinder and meshes with a driven gear arranged on the outer wall of the smashing and grinding cylinder, and a transmission belt is arranged between the driving belt pulley and a driven belt pulley sleeving the vertical roller and used for transmitting the power. According to the traditional Chinese medicine raw material smashing and grinding device, the rotating directions of the vertical roller and the smashing and grinding cylinder are opposite, and then the purpose that traditional Chinese medicine raw materials falling into the annular material channel are efficiently smashed and ground is achieved; and by means of the cutting section, the smashing section and the grinding section, continuous operation of cutting, smashing and grinding of the traditional Chinese medicine raw materials is achieved, and the processing efficiency is improved.

The invention relates to the field of municipal water conservancy purification, in particular to a water surface floating oil extraction device for municipal water conservancy projects and a using method thereof. According to the water surface floating oil extracting device for the municipal water conservancy project, through cooperation of a fourth liquid level sensor and an electronic push rod, the height of an oil collecting ring can be flexibly adjusted along with the floating height of an annular floating barrel, the top face of the oil collecting ring is kept at the set height below the water surface height all the time, and floating oil on the surface layer of the water surface is accurately sucked; meanwhile, the oil collecting ring of an annular structure is wide in coverage and free of dead corners, floating oil on the periphery of the device can be rapidly sucked into the oil filtering cavity in cooperation with the telescopic hose, the extraction efficiency is high, large-size floating objects on the water surface can be preliminarily and effectively filtered through the arrangement of the filtering net cylinder, solid impurities of a water-oil mixture are filtered out through cooperation of the impurity filtering cylinder, and the oil filtering efficiency is high. And the filtering efficiency can be effectively improved through bidirectional filtering of the oil filtering cylinder and the water filtering cylinder.

The invention discloses movable equipment for preparing artificial stone based on spoil / muck. The movable equipment comprises a trailer and a support device arranged at the bottom of a flat plate of the trailer, wherein an extension device is further arranged on the trailer, two installing rails for installing lifting devices are arranged at the tail of the trailer, the trailer is provided with a first material storage box used for receiving materials discharged by one of the lifting devices and a pulverizer used for receiving materials discharged by the other lifting device, a second material storage box is arranged on one side of the first material storage box, a stirring machine and a baking-free brick machine are sequentially arranged on the side, away from the lifting devices, of the first material storage box, an extension frame is arranged on the side, away from the stirring machine, of the baking-free brick machine, and an adding device is further arranged on the pulverizer. According to the movable equipment, on-site preparation can be carried out according to the position of the spoil / muck, and the main raw material spoil / muck is prevented from being moved only by moving the equipment to the position of the spoil / muck, so that the transportation cost is saved, and the production cost of artificial stone is reduced.

The invention discloses a manufacturing method of a rustproof anticorrosion milling machine water tank and relates to the technical field of water tank rust prevention. The manufacturing method of therustproof anticorrosion milling machine water tank comprises the steps that oil-resistant primer is sprayed to the surfaces of plates; asphalt paint is brushed and painted on the surfaces of the plates to which the oil-resistant primer is sprayed; and the plates to which the asphalt paint is brushed and painted are welded to form the water tank. According to the method, by adopting the oil-resistant primer and asphalt paint double-coating anticorrosion technology, the oil-resistant primer is sprayed firstly, then the asphalt paint is brushed and painted, the anticorrosion performance is enhanced, the work reliability of the water tank is ensured, and meanwhile, the problem that immersion groove type pretreatment cannot be carried out on large structural members like the water tank easilyis solved.

The invention discloses an electronic component soldering tin recycling device. The recycling device comprises a housing, wherein a feeding port is formed in one end of a panel at the bottom of the housing, conveying belts are arranged at the lower end of the feeding port and arranged on a bottom plate, a vibration motor is arranged below the bottom plate, and the vibration motor is arranged on abase plate; a discharging chute is formed between the upper conveying belt and the lower conveying belt, and a second collecting box is arranged at the lower end of the discharging chute; a first collecting box is arranged at the tail ends of the conveying belts and arranged on the base plate; a water tank is arranged below the base plate, wherein a water pump is arranged in the water tank, and areturn pipe is connected to the water pump; and an air return pipe is further arranged in the water tank, wherein the other end of the air return pipe communicates with an exhaust fan, the exhaust fanis arranged on a supporting plate in the housing, and a plurality of hot air guns are arranged on the supporting plate. According to the device, soldering tin removing operation can be carried out onan electronic element in a relatively sealed and heat-preservation environment, circulation of hot air is achieved, reduction of working power consumption of the hot air guns is facilitated, and meanwhile mass production is facilitated.