241results about How to "Solve the rust" patented technology

The invention relates to a multifunctional indwelling needle comprising a sleeve tube assembly and a steel needle assembly. The multifunctional indwelling needle is characterized by further comprising an anti-reflux valve, an anti-puncture safety device and a non-needle positive pressure connector, wherein the anti-reflux valve is arranged in the middle cavity of a sleeve tube seat and located at the front end of a hose communicated with the sleeve tube seat in the axial direction of the sleeve tube seat; the anti-puncture safety device is arranged on a steel needle seat, and the non-needle positive pressure connector is arranged on an external connector; the anti-puncture safety device is a non-spring anti-puncture safety device, and the non-needle positive pressure connector is a non-spring non-needle positive pressure connector. Blood can be prevented from overflowing to cause pollution due to the sealed structure; the situation that because a medical worker is punctured when the steel needle is pulled out, the medical worker catches a disease is avoided; anti-reflux double protection avoids accidental conditions caused by a single measure, the multifunctional indwelling needle is safe and reliable at work, the problems caused by blood reflux are avoided, and working efficiency of the medical worker is improved. Meanwhile, the non-spring structure avoids the corrosion problem caused by a spring structure, the multifunctional indwelling needle is safer and more sanitary, and steady and reliable working of the indwelling needle is ensured.

The present invention relates to a wafer packaging with array pads and its processing method. The wafer packaging mainly includes even numbers of wire-bonded pads, a wafer, even numbers of welding line and a sealing colloid. An upper and a lower combination layers are separately formed on cores of the wire-bonded pads, in which materials of the cores include copper. These welding lines electric connect the wafer with the upper combination layer of the wire-bonded pads. The sealing colloid seals these welding lines, cores and upper combination layers, in which only the lower combination layers are exposed out of the sealing colloid. The present invention can solve the former rusting problem of exposed cutting surface of pins in non-external-pin wafer packaging of conductor frame substrate, and has array pads which can achieve high density of wafer packaging. The processing method of the present invention keeps using a rigid conductive mold in packaging process to carry steps of electroforming, wafer attaching, wire bonding and packaging to achieve coherence of the packaging process.

The invention relates to a lifting net box with an inner liner and a lifting support system of the lifting net box. The invention consists of two parts: the net box with the lifting function and the lifting support system, wherein the net box is provided with the telescopic inner liner and mainly comprises a floating pipe, the inner liner, a separation plate, a ventilation main pipe, a ventilation hose, an air distribution pipe, a water communication pipe, a safety cap and the like, and the lifting support system mainly comprises an air pump, a communication pipe, an exhaust pipe, a valve, a flow rate distributor, an air distribution joint and an air pressure meter. The lifting support system on the sea level is connected to the ventilation main pipe through the ventilation hose and is then connected to the inner liner arranged in the floating pipe of the net box through the air distribution pipe, the inner liner can expand and contact under the effect of the air pump, a water body in the floating pipe is discharged when the inner liner expands, the upward floating of the net box is realized, the water body outside the net box enters the floating pipe from the water communication pipe through the siphon effect when the inner liner contacts, the downward sinking of the net box is realized, and the downward sinking is automatically stopped when the net box sinks down to a degree that a sinking element suspended at the bottom of a fishing net is in contact with the sea bed.

The invention provides a vertical crack grouting and reinforcing method of a prestressed concrete hollow slab bridge bottom plate. According to the method, pressure grouting equipment is mainly adopted to pour a cement-based grouting material into a prestressed concrete hollow plate cavity with a certain thickness, wide, deep and long vertical cracks on the bottom plate can be actively sealed fundamentally through effective adhesion of the grouting material and bottom plate concrete, thereby preventing leakage water inside plates and steams, as well as steam and harmful media and the like in air from entering the cracks to result in rust corrosion and breakage of prestressed steel stranded wires, and further improving the durability and safety of a bridge structure.

The present invention provides organic exhaust gas processing method and system thereof. Exhaust gas containing one or various organic solvent generates from production equipment, and first preprocessing by a exhaust gas preprocessing system (I) then entering a adsorption / desorption system (II) for adsorption and desorption, and the desorbed organic solvent entering a recovery system (III) for recycling, part of the desorbed organic solvent being used for production and the others entering a hypoxia hot air generation system (IV) for catalytic combustion to get hypoxia hot air, and using the obtained hypoxia hot air for desorption. Using the recycled organic solvent from the recovery system (III) as fuel to generate hypoxia hot air that making industries incapable of steam or inert gas supply being able to recovery organic solvent exhaust gas without secondary pollution, simultaneity resolving problem of system internal pollution caused by using variety fuels and equipment corrosion caused by steam.

The invention provides an air cooling-wet cooling combined type water-saving fog-dispersing cooling tower, which belongs to the field of cooling equipment. The objective of the invention is to overcome the problems of a clumsy overall structure, waste of water resources and a short operation cycle of conventional industrial circulating water cooling towers. According to the invention, one to a plurality of air coolers are arranged on the main body frame of the cooling tower; the air coolers comprise 1 to 10 open circulating water gas-liquid orthogonal membrane plate type air coolers, and the upper parts of the open circulating water gas-liquid orthogonal membrane plate type air coolers correspond to nozzles of a primary water distribution and spray system; a mixed gas chamber is arranged in the cavity of the main body of the cooling tower and between the pedestal of the open circulating water gas-liquid orthogonal membrane plate type air coolers and a top air duct and a bottom tower body base located at two sides; adjustable louvers are arranged on the air inlets of the main body of the cooling tower and on the air inlets of the air coolers; and the air outlets of the open circulating water gas-liquid orthogonal membrane plate type air coolers are communicated with the mixed gas chamber in the main body of the cooling tower. The air cooling-wet cooling combined type water-saving fog-dispersing cooling tower has a simple and practical overall structure and is applicable to cooling of industrial circulating water through combined usage of an air cooling section and a wet cooling section.

A method for manufacturing an abrasion-resistant fastening piece through the 3D printing technology comprises the steps that computer modeling and layer-by-layer cutting are carried out; graphs are converted to light beams with graph information; a photosensitive drum is charged to obtain electric potential, and an electrostatic latent image is formed through light beam scanning; the electrostatic latent image passes through a magnetic brush and attracts powder to from an internal component; the surface of the internal component is processed; printing steps are executed repeatedly to form an external component; the outer surface is processed. The fastening piece made through the method has the advantages of being accurate in size, strong in abrasion resistance, and long in service life.

The invention belongs to the technical field of building materials and particularly relates to a magnesium oxysulfate cement plate and a preparation method thereof.The magnesium oxysulfate cement plate is characterized by comprising the following components according to parts by weight: 60-75 parts of magnesium oxide, 30-40 parts of magnesium sulfate solution, 8-10 parts of coarse wood flour, 6-8 parts of fine wood flour, 3-6 parts of reinforcing material, and 0.2-0.5 part of a modifier.The magnesium oxysulfate cement plate has a reasonable formula, is convenient to use, good in breaking strength and good in water resistance; the magnesium oxysulfate cement plate of the invention is free of scumming during usage and never deforms during long-term usage.

The invention discloses a fire fighting device intelligent tour inspection system and method based on internet of things GIS; the system includes a system management platform, a database server, an RFID label, a hydraulic pressure sensor for reading the hydraulic pressure of a fire hydrant, a read head, an android intelligent mobile phone as a bluetooth-communication signal converter, and a mobile terminal intelligent tour inspection subsystem; the mobile terminal intelligent tour inspection subsystem includes a registration module, a tour inspection module, and a map checking module; the hydraulic pressure sensor and the RFID label are both mounted in a fire fighting device; the hydraulic pressure sensor reads a hydraulic pressure value, and then the value is transmitted to the read head; the RFID label transmits a label ID value to the read head; the hydraulic pressure and the ID are in one-to-one correspondence in the read head, then are read through the android intelligent mobile phone, are transmitted to the system management platform, and are saved in the database server; the mobile terminal intelligent tour inspection subsystem can inquire a latest tour inspection result from the system management platform in real time, and the latest tour inspection result is displayed on a map. The system and the method effectively improve the scientificity and effectiveness of the management.

A combined saw blade is composed of saw blade matrix made of fibre reinforced thermosetting or reinforced thermoplastic plastics, cutter heads, and cutter seats consisting upper and lower units. Its advantages are high weight, exchangeable cutter, and no rust of saw blade matrix.

The invention discloses a steel truss-prestressed concrete bridge deck combined bridge girder which comprises a steel truss and a bridge deck laid on the steel truss, wherein the steel truss comprises a plurality of vertical truss pieces and two horizontal bracing systems, namely the upper horizontal bracing system and the lower horizontal bracing system; the vertical truss pieces are arranged side by side in the direction of a bridge span; the two horizontal bracing systems parallel to each other are respectively arranged at the tops and the bottoms of the vertical truss pieces; FRP (Fiber Reinforced Polymer) structures are stuck to the surfaces of the components of the vertical truss pieces; FRP structures are laid onto the left surfaces and the right surfaces of the vertical truss pieces to enable the vertical truss pieces to form webs; an FRP structure is stuck to the surface of the component of the upper horizontal bracing system; FRP structures are stuck to the upper surface and the lower surface of the upper horizontal bracing system to enable the upper horizontal bracing system to form a top plate; an FRP structure is stuck to the surface of the component of the lower horizontal bracing system; FRP structures are stuck to the upper surface and the lower surface of the lower horizontal bracing system to enable the lower horizontal bracing system to form a bottom plate; each FRP structure comprises FRP woven roving and FPR chopped strand mats are stuck to two surfaces of the FRP structure. The invention further discloses a construction method of the steel truss-prestressed concrete bridge deck combined bridge girder.

The invention discloses a fiber reinforce plastic (FRP)-rubber-steel composite pipe concrete structure. The structure is characterized by comprising an FRP layer (1), a rubber layer (2), a steel pipe (3) and core concrete (4) from outside to inside, wherein the FRP layer (1), the rubber layer (2) and the steel pipe (3) are stuck by resins to form an integral composite pipe; the core concrete (4) is filled in the composite pipe; and the composite pipe applies constraint enhancement effect on the internal core concrete (4). The invention overcomes the defects of the known steel pipe concrete and FRP pipe concrete structure, has the advantages of large bearing capability, high ductility, devisable yield platform and post-yield enhanced secondary rigidity, large bearing capability reserve, high damping performance and high durability, particularly has perfect earthquake resistance and good capability of absorbing vibration load energy under seldom occurred earthquakes, and can be applied as components of columns, piers and the like in the field of civil construction structure.

The invention belongs to the technical field of cloisonne manufacture, in particular to a process for manufacturing cloisonne silverware. A body is made of silver, and filamentary silver is used for filigree; and the process comprises the following process steps of: rolling the body; soldering filigree; welding; filling enamel; firing the enamel; and polishing, wherein after an enamel filling procedure, the inner wall of a silver body is filled with a cool medium material, the cloisonne silverware filled with the cool medium material is put into a furnace for enamel firing, and the cloisonne silverware is immediately taken out of the furnace once the enamel is melted. In the process for manufacturing the cloisonne silverware, the adopted cool medium material effectively reduces the heat conducting or heat dissipating speed of the silver body, the problem of corrosion of a copper body is solved, and the silver is used as an inner body, so that the cloisonne has health-care effect and higher visual aesthetic feeling.

The invention provides a refrigerator capable of automatically opening and closing a door, and the refrigerator comprises a refrigerator main body for forming a low-temperature storage space; a drawerdoor which is used for opening or closing the low-temperature storage space in a drawing manner; and a guide rail which is located between the refrigerator main body and the drawer door, wherein thedrawer door can be connected to the refrigerator main body in a sliding mode along the guide rail. The refrigerator further comprises an automatic door opening and closing assembly, and the drawer door automatically slides out of or slides into the refrigerator main body through the automatic door opening and closing assembly. According to the invention, through the automatic door opening and closing assembly, the driving gear drives the drawer door to be automatically opened in the whole process when powered on through an electromagnetic clutch, there is no need to open the door additionally,and full-automatic opening is completely achieved; the automatic door opening state and the conventional manual door opening and closing state of the refrigerator can be switched at will, the drivingassembly in the refrigerator with the automatic door opening and closing function is sealed through the shell, and meanwhile, the noise generated when the driving motor, the reduction gearbox and theelectromagnetic clutch work is effectively isolated.

The invention relates to a cement-based material for adsorbing and solidifying chloride ions and a preparation method thereof and belongs to the field of durability of cement-based materials. The cement-based material comprises the following raw materials in part by weight: 90-560 parts of Portland cement, 10-30 parts of dispersing agent, 2-6 parts of graphdiyne nano-material, 30-280 parts of phosphorus slag powder, 20-250 parts of quicklime and 70-375 parts of mixing water. The preparation method comprises the following steps: modifying the phosphorus slag powder by adopting the quicklime andplacing the dispersing agent and the graphdiyne nano-material in the mixing water for dissolution to prepare a dispersed suspension; adding the graphdiyne suspension in the Portland cement doped withthe phosphorus slag powder to stir and performing vibratory compaction molding on a stirred graphdiyne cement slurry pouring mold; de-molding after standard curing of a sample to a specified time. The cement-based material has good abilities to adsorb and solidify the chloride ions and can significantly improve the durability of reinforced concrete; meanwhile, the pressure of natural resources iseffectively relieved by efficient utilization of the phosphorus slag powder, so that the purposes of energy saving and emission reduction, building material recycling and green industrialization areachieved.

The invention discloses a multifunctional fiber composite material non-dismantling formwork and a preparation method thereof. The multifunctional fiber composite material non-dismantling formwork is composed of a plurality of fiber material layers arranged at intervals and cementitious material layers with a conductive function. The one or more fiber material layers are made of carbon fiber reinforced composite materials. The cementitious material layers are located at the upper end and the lower end of the multifunctional fiber composite material non-dismantling formwork. Each fiber material layer is wrapped between the two adjacent cementitious material layers. When the multifunctional fiber composite material non-dismantling formwork is used in building engineering constructing, not only is the problem of rebar rust solved so as to protect a reinforced concrete structure, but also the formwork can replace a wooden temporary formwork in use, and the formwork is free from being dismantled, so that the reinforced concrete main body structure is protected well from the beginning of construction, the social resource is saved, the environment is protected, the formwork cost is reduced, and the construction speed is accelerated greatly.

An automatic derusting and painting device for the inner wall of a steel tube comprises two brackets, wherein an air source pipeline and a consumable pipeline are arranged between the two brackets, the air source pipeline is connected into a rotary drive device which provides rotation power for a rotary spray head, the consumable pipeline communicates with the rotary spray head, an air source portis formed in one end of the air source pipeline, a consumable pipeline port is formed in one end of the consumable pipeline, guide wheels are arranged on the outer side edge of each bracket, and a spray port of the rotary spray head points to the inner wall of the steel tube. Compared with the prior art, shot is sprayed to the inner wall of an upright column of a cantilever crane for shot blasting of the inner wall, painting operation is performed on the inner wall after shot blasting, the problem of corrosion of the inner wall of the steel tube upright column of the cantilever crane is solved, surface smoothness is improved, and product quality is guaranteed. The brackets provided with the guide wheels are arranged on the derusting and painting device to serve as support between the device and the inner wall and can be adjusted, and derusting and painting requirements of inner walls of upright columns with different specifications are met.

The invention discloses a stay cable dehumidification system and a stay cable dehumidification method. The stay cable dehumidification system comprises a dehumidification module as well as a stay cable ventilation module which is used to convey new air processed by the dehumidification module to a stay cable. The dehumidification module comprises a filter device, a dehumidification device, a dry air balance device and a gas conveying device, wherein the filter device is used to filter the input new air; the dehumidification device is used to dehumidify the new air filtered by the filter device; the dry wind balance device is used for gas pressure balance of the new air dehumidified by the dehumidification device; and the gas conveying device is used to make the new air be conveyed to the filter device, the dehumidification device and the dry wind balance device in succession. According to the stay cable dehumidification system and the stay cable dehumidification method provided by the invention, dry wind is conveyed to the stay cable by the dehumidification system, so that dehumidification and corrosion prevention can be achieved; the system can be detected in time; corrosion problems of upper and lower anchor heads and the stay cable are solved; replacement frequency of the stay cable is greatly reduced; and bridge safety is enhanced effectively.

The invention discloses a hollow-sandwich multi-cavity steel pipe concrete member and a preparation method thereof. The hollow-sandwich multi-cavity steel pipe concrete member comprises an internal steel pipe and an external steel pipe which are concentrically placed; a space between the internal steel pipe and the external steel pipe is filled with concrete; a plurality of transverse diaphragms are uniformly distributed on the external wall of the internal steel pipe around the axis of the internal steel pipe; each transverse diaphragm is placed along the full length of the internal steel pipe in the axial direction; the external end part of each transverse diaphragm is in clamping connection with a groove formed in the internal wall of the external steel pipe; convex teeth are arranged on the internal wall of the external steel pipe and the external wall of the internal steel pipe; a plurality of shear grooves are uniformly formed in the side surfaces of the transverse diaphragms inthe axial direction; a plurality of external cylinders made of carbon fiber composite materials are bonded outside the external steel pipe in the annular direction; and the external cylinders are notconnected with the end part of the external steel pipe. According to the hollow-sandwich multi-cavity steel pipe concrete member, the corrosion resistance is high, less separation phenomena between the steel pipe walls and the concrete are less, the steel pipes are unlikely to generate local buckling, and the stressed states of the concrete in three directions are uniform.

The invention relates to the technical field of dust and snow sweeping and discloses a trolley running mechanism. The trolley running mechanism comprises a pulling rope, a guide rail and a trolley, wherein the trolley is driven by the pulling rope and moves along the guide rail; a hollow tubular cavity is formed inside the guide rail, and at least one part of the pulling rope is located inside the tubular cavity; a slot is formed in the guide rail, and the slot connects the tubular cavity and the exterior of the guide rail; a connecting arm is arranged on the trolley; and the connecting arm penetrates the tubular cavity through the slot and is connected with the pulling rope. By the aid of the trolley running mechanism, the rope which pulls the trolley can be effectively prevented from being rusted; the dustproof and waterproof capacity of the sweeping device is improved; and then the service life is prolonged.

The invention belongs to the technical field of railway traffic equipment and relates to a steel rail cladding vibration reduction structure of an embedded type railway capable of being resistant to corrosion for a long time in the operation process and a preparation method of the steel rail cladding vibration reduction structure. The steel rail cladding vibration reduction structure comprises a steel rail, a macromolecule elastic damping body layer and a framework material. The outer layer of the steel rail is filled with the macromolecule elastic damping body layer. The two side surfaces and the bottom surface of the steel rail are wrapped with the macromolecule elastic damping body layer which is made of a two-component polyurethane grouting material. Construction is convenient and easy, and the vibration and noise reduction effects of the steel rail can be effectively improved.

The invention relates to the field of medical apparatus and instruments, and in particular relates to a disinfection device for medical apparatus and instruments. The disinfection device comprises a disinfection box, a layer partition plate, a bottom plate, round rolls and a conveying mechanism, wherein the layer partition plate and the bottom plate separate the disinfection box into a part feed chamber, a disinfection chamber and a mounting chamber, the round rolls are fixed to the side wall of the disinfection chamber, and a sliding belt sleeves the round rolls; a plurality of part containing boxes with grids are fixed on the sliding belt; grid-shaped box covers are hinged to the part containing boxes, and fasteners matched with the part containing boxes are arranged on the box covers; an air cylinder is fixed on the inner wall of the disinfection chamber, a flapping rod is hinged to the inner wall of the disinfection chamber, and the free end of an output shaft of the air cylinder is hinged to the flapping rod; the conveying mechanism is positioned in the part feed chamber, the conveying mechanism comprises a driving wheel and a driven wheel, a pressure sensor is mounted in thedriven wheel, and the pressure sensor is serially connected with the air cylinder through a controller. With the adoption of the technical scheme, the disinfection device has the advantages that the medical apparatus and instruments can be circularly taken, and the problem that some medical apparatus and instruments are positioned at the bottom of the disinfection chamber for a long term so as tobecome rusty is solved.

The invention discloses a modified aqueous paint coating process for an oil tank for a petroleum cave depot / an earthing storeroom. The process comprises the following operating steps of: (1) surface treatment before steel product coating; (2) environmental control; (3) coating construction; and (4) quality control. The invention formulates the coating process suitable for coating the oil tank in the petroleum cave depot / earthing storeroom with the modified aqueous paint. According to the process disclosed by the invention, the modified aqueous paint can be uniformly sprayed to the wall surface of a storage tank to satisfy the demand in the field of petroleum, so that the aqueous paint is in full contact with the oil tank. Moreover, the paint will not fall off from the oil tank, so that the coating quality is guaranteed, and the problem that the oil tank is rusted as an existing aqueous paint spraying method cannot achieve the using demand to lead to fall-off of the aqueous paint is solved.

The invention discloses a friction material composition comprising an enhancing material, a bonding agent, a resin modification agent, a friction adjustment agent and a filling material. The enhancing material comprises glass fiber, yellow paper fiber, grey paper fiber and ceramic fiber. Relative to 1 part by weight of glass fiber, the enhancing material comprises 1-3 parts by weight of the yellow paper fiber, 0.4-1.2 parts by weight of the grey paper fiber and 0.5-2 parts by weight of the ceramic fiber. Relative to 1 part by weight of the enhancing material, the friction material composition comprises 0.3-0.9 parts by weight of the bonding agent, 0.1-0.5 parts by weight of the resin modification agent, 0.2-0.8 parts by weight of the friction adjustment agent, and 0.5-1.5 parts by weight of the filling material. The invention also provides an automobile braking friction material prepared from the friction material composition. With the above technical scheme, the strength and high-temperature friction coefficient stability of the friction material are improved.

The invention relates to the technical field of vehicle frame welding, in particular to a welding processing method for a vehicle frame. The method comprises the following steps: (1) carrying out treatments of abrasive blasting and rust cleaning; (2) carrying out a phosphide priming paint spraying treatment; (3) discharging materials; (4) welding; (5) carrying out a painting make-up treatment; (6) polishing; (7) carrying out a finish paint treatment; and obtaining a vehicle frame finished product after the finish paint is dried. Compared with the prior art, the welding processing method for the vehicle frame has the advantages that the automatic abrasive blasting treatment is carried out after steel materials are supplied, an automatic treatment is achieved, difficulty and labor intensity of manual abrasive blasting and rust cleaning are reduced; production-manufacturing time is shortened, and production efficiency of a factory is improved. After being carried out abrasive blasting and rust cleaning, the steel material are sprayed and coated mature rust-proof phosphide priming paint, the steel materials which are sprayed and coated the phosphide priming paint can be prevented from being rusted again, and subsequent welding processes can not be affected when the steel materials are stored for a long time, the problem of rust of the steel materials is solved, the welding quality problem caused by steel material rusting in a welding operation process is reduced, and high quality of products are guaranteed.

The invention relates to the field of medical instruments, in particular to a method for sterilizing medical instruments. The method includes the steps that medical instrument sterilizing devices areprepared; the medical instruments are placed into a instrument containing box and the speed of a driving wheel is adjusted; instruments are fetched and placed; a sliding belt is rotated; instruments are packed and locked; the sliding belt is rotated again for reset. When the technical scheme is adopted, the medical instruments can be fetched in a circular mode, and the problem that a part of medical instruments rust due to being positioned on the bottom of a sterilizing chamber for a long time.

The invention relates to a preparation method of a long-acting inner wall cleaning agent for a crude oil storage tank, and belongs to the technical field of chemical engineering cleaning agents. The method comprises the steps that a sulfuric acid solution, a polyethylene oxide-polypropylene oxide segmented copolymer, urotropine, o-xylene thiourea, sodium molybdate, triisopropanolamine, isobornyl methacrylate, benzoic acid and olive oil macrogol ester are heated and then mixed to be uniform, and a first mixture is obtained; a corrosion inhibitor and a thickening agent are added in the first mixture, heated and mixed to be uniform, and a second mixture is obtained; an anion surface active agent and paraffin emulsion are added into the second mixture, heated and then mixed under the high-speed dispersion condition, and a cleaning agent is obtained. According to the cleaning agent, the problem that iron sulfide surface depositions and corrosion are generated by a sulfur compound in the crude oil storage tank can be solved, and the cleaning agent has the effect of resisting rust in a long-acting mode.

The invention discloses a tower crane base structure in the range of a base bottom plate, wherein a waterproof cushion layer a is tiled on the upper surface of the tower crane base; a horizontal segment of a waterproof layer is paved on the upper surface of the waterproof cushion layer a; a waterproof cushion layer b is paved on the upper surface of the horizontal segment of the waterproof layer; along the outside surfaces of a stand column and an inclined strut, the waterproof layer is rolled from the horizontal direction to the vertical direction; an L-shaped waterproof protection layer a fits the inner sides of the horizontal segment and a vertical segment of the waterproof layer which protrudes out from the surface of the waterproof cushion layer a to approach to the positions of the stand column and the inclined strut; and a waterproof protection layer b fits the outside surface of the vertical segment of the waterproof layer. The tower crane base structure in the range of the base bottom plate is capable of solving the technical problem that the project quality cannot be ensured due to the unfavorable stress of the base bottom plates as the tower crane bases are arranged below the bottom elevations of the base bottom plates, construction holes are retained on the base bottom plates and the waterproof layers of the bottom plates are connected at the construction holes and solving the technical problem that great inconvenience is brought to the vertical transportation as the construction of the base bottom plates is prior to the mounting of the tower cranes when the tower crane bases are replaced by the base bottom plates.

The invention discloses a gas supplementing adaptor connector for sulfur hexafluoride equipment. The gas supplementing adaptor connector for the sulfur hexafluoride equipment comprises a connector body, an operation through hole is formed in the connector body, a connecting nut which is in threaded connection with a self-sealing check valve of the sulfur hexafluoride equipment is arranged at one end of the operation through hole, a sealing hole is formed in the other end of the operation through hole, a sealing fixing structure is arranged in the sealing hole, a gas supplementing hole which makes the operation through hole and outside of the connector body communicate is formed between the sealing fixing structure and a connecting piece, and an operation rod which moves in the axial direction of the operation through hole is arranged inside the operation through hole. The invention further discloses a gas supplementing system for the sulfur hexafluoride equipment and a gas supplementing method for the sulfur hexafluoride equipment. The gas supplementing adaptor connector, the gas supplementing system and the gas supplementing method for the sulfur hexafluoride equipment have the advantages that the structure is simple, the design is reasonable, a connector ejector pin has certain mobility, errors and damage caused by frequent machining and assembly of the connector ejector pinare reduced, the function of performing moisture removing before gas supplementing is achieved, moisture removing countdown also can be displayed, and the using effect is good.

The invention discloses an industrial bag-type dust collector, and relates to the technical field of industrial dust collection. The industrial bag-type dust remover comprises a supporting frame, an upper spraying device is arranged at the top of a box body, a dust removing device is arranged on one side of the box body, an opening and closing device is arranged in the middle of the surface of thebox body, a collecting device is arranged at the bottom of a funnel, a drying device is arranged on the inner wall of an inner cavity of the box body, and lower spraying devices are symmetrically arranged on the left and right walls of the inner cavity of the box body. The problems that due to the fact that a large amount of dust adheres to the inner wall of the box body, limited cleaning cannotbe achieved, the inner wall of the box body cannot be quickly dried, the inner structure of the box body is rusted, a large amount of dust remains on the surface of a filtering bag, filtered blockageis caused, the filtering effect and the service life of the filtering bag are greatly affected, and sealing connection is conducted are solved. Dust on the surfaces of particles falls into a collecting box, a small amount of dust floats in the air, and the environment is influenced.