318results about How to "Reduce cleanup costs" patented technology

The invention discloses a novel telescopic pipeline cleaning robot which comprises a first body, a second body, two traveling mechanisms, a cleaning device and a mechanical arm. The first body and the second body are arranged in the front-back direction and connected through a double-joint universal coupler. The traveling mechanisms are arranged on the outer side of the first body and the outer side of the second body correspondingly. The cleaning device is arranged on the rear side of the second body and comprises a cleaning disc and a plurality of telescopic rods. The cleaning disc is connected with a first motor arranged inside the second body. The multiple telescopic rods are evenly arranged on the edge of the cleaning disc in an annular mode. One end of each telescopic rod is fixedly connected with the cleaning disc, and a cleaning wheel is arranged at the other end of each telescopic rod. A bracket is arranged on the front side of the first body, and the mechanical arm is installed on the bracket. When the novel telescopic pipeline cleaning robot is used for cleaning different pipelines, the inner walls of the pipelines with different diameters and curvature degrees can be cleaned by adjusting the lengths of the telescopic rods, the novel telescopic pipeline cleaning robot is suitable for variable-diameter pipelines of complex structures, the adaptability is high, and the cleaning efficiency is high.

The invention relates to the technical field of welding of a long distance pipeline and is a semi-automatic welding method of root welding of a pipeline with metal powder core welding wire; the root welding layer welding is carried out as follows: the metal powder core welding wire and short arc control technology are adopted, protective gases are added to carry out welding of root welding bead of full position; the welding parameters are as follows: welding current is 140A to 200A; the welding voltage is 15V to 18V; the welding speed is 16cm / min to 26cm / min; the wire feed speed is 350cm / min to 500cm / min; the wire extension is 8mm to 12mm; and the pendulum deflection is based on that weld metal is deposited to the edge of a welding pipeline. The method solves the bottleneck problem of restraining the flow construction operation of the semi-automatic welding, effectively solves the problems of undercut, depression and the like of the back surface of welding seams of circular welding joints, reduces the cost of cleaning of the surface of welding pipelines, reduces the labor intensity of workers, increases the thickness of deposited metal, reduces the welding layers, greatly improves welding production efficiency, obtains high-quality welding seams and improves the welding speed, can reduce one third time of welding compared with manual welding and reduces the operation cost.

The invention relates to a highly-efficient paint mist coagulant and an application method thereof. The paint mist coagulant includes an A reagent and a B reagent, the A reagent is a water solution mainly prepared by a modified macromolecule polymerization metal salt, the macromolecule polymerization metal salt is aluminium salt or iron salt; the B reagent is a water solution mainly prepared by a polymerization amide-type substance with molecular weight of 9 millions to 12 millions. When in application, the paint waste water is blended with the A reagent and the B reagent according to volume ratio of 500:2:1, thus leading the paint in the paint waste water to cake and float, the paint and the water are separated, clear water is obtained to reuse. The usage is firstly adding the A reagent, and adding the B reagent after even blending. The processed paint waste water is fat-soluble paint waster water and water-soluble paint waste water. The highly-efficient paint mist coagulant has a wide reagent source, effectively overcomes the disadvantages of the trivial preparation process, many and complex additional reagents and high price of the traditional paint mist coagulant, can reduce common paint waste water treatment cost to 0.25 yuan / ton and can be widely used in circulating water treatment in a wet-typed paint mist removing system.

The invention discloses a rust removal device for the inner wall and the outer wall of a steel pipe. The rust removal device for the inner wall and the outer wall of the steel pipe comprises a rail, adrive unit, an inner wall cleaning unit, an outer wall cleaning unit and the steel pipe, wherein one end of the steel pipe is fixedly connected with the drive unit; the drive unit is capable of driving the steel pipe to move along the rail to change the position and driving the steel pipe to rotate; the inner wall cleaning unit is fixed to the rail and stretches into the steel pipe from the freeend of the steel pipe; the outer wall cleaning unit is provided with a brush wheel; and the brush wheel can be away from the steel pipe or tightly pressed on the steel pipe. The rust removal device for the inner wall and the outer wall of the steel pipe has the advantages of realizing cleaning and rust removal for the inner wall and the outer wall simultaneously, lowering the labor intensity, saving the cleaning cost, and having a good popularization prospect.

The invention discloses a method for cleaning and descaling a phosphoric acid storage tank, which comprises the following steps: preparing a cleaning solution from 2 to 6 mass percent of nitric acid, 2 to 6 mass percent of sulphuric acid, 4 to 8 mass percent of hydrofluosilicic acid and 0.01 to 0.02 mass percent of sustained release agent; and heating the cleaning solution, adding the cleaning solution into the phosphoric acid storage tank, starting a stirrer to stir the mixed solution and dipping scales in the storage tank with the cleaning solution to clean and remove the scales, wherein the sustained release agent is sodium molybdate or ATMT; temperature at which the cleaning solution is heated is 50 to 80 DEG C; and the scales in the storage tank are dipped for 24 hours. By adopting the method of the invention, the cleaning time of the phosphoric acid storage tank is shortened, cleaning cost is reduced and the operating ratio of a device is increased. The cleaning solution in the method is simple to prepare, convenient to use and recyclable. The method is applied to wet-process phosphoric acid production factories.

The invention provides a preparation method and the application of Enteromorpha prolifera polysaccharide with an immunity enhancing function. The preparation method of the Enteromorpha prolifera polysaccharide comprises the steps of crude Enteromorpha prolifera polysaccharide extraction, crude Enteromorpha prolifera polysaccharide deproteinization, micromolecular impurity removing through a high-speed centrifugal method, pigment removing through an oxidation method, polysaccharide purification through a Sephacryl-300 gel chromatographic column and the like. The invention provides the simple preparation method of the Enteromorpha prolifera polysaccharide having the characteristics of stable performance, low cost, high medicinal value, capacity of increasing the immunity, and the like. Particularly, the Enteromorpha prolifera polysaccharide and an extraction method of the Enteromorpha prolifera polysaccharide are obtained by adopting the preparation method of extraction and purification as well as in-vitro immunocompetence screening and immunosuppression animal experiments, the effect of the Enteromorpha prolifera polysaccharide which is capable of enhancing the immunity function of immunosuppressed mice is clarified, and a new method is provided for effectively developing the medicinal value and the purposes of Enteromorpha prolifera, managing the environment pollution, reducing the cleaning cost and increasing the social and economic benefits.

The invention provides a melt-and-play glue melting device which comprises a glue cylinder, a glue injection gun nozzle, wherein the glue cylinder is used for storing a liquid glue stock; the glue injection gun nozzle is used for jetting the liquid glue stock; the conveying pipe is connected with the glue cylinder; and a screw rod is arranged in the conveying pipe, and rotates to melt a solid glue stock into the liquid glue stock. The melt-and-play glue melting device has the advantages that the boot waiting time can be shortened; the carbonization of the glue stock is removed; and the obtained glue is free of a bubble.

The invention discloses a shaft mouth platform jacket wheel type moving mechanism orienting an offshore oilfield, and belongs to the field of robots. The shaft mouth platform jacket wheel type movingmechanism comprises an upper mechanism body and a lower mechanism body, and an upper clamping mechanism and a lower clamping mechanism are fixed to the upper mechanism body and the lower mechanism body respectively; the upper clamping mechanism comprises an upper rack, the upper rack comprises a rectangular plate and a first baffle and a second baffle located at the two ends of the rectangular plate, and a fixed rod and a first slide block and a second slide block capable of sliding along the fixed rod are arranged between the first baffle and the second baffle; a first clamping plate and a second clamping plate perpendicular to the rectangular plate are fixed to the first slide block and the second slide block respectively, and triangular slide blocks capable of sliding in the length direction of the clamping plates are arranged at both ends of the first clamping plate and the second clamping plate and are provided with idler wheels and speed adjusting motors; the lower clamping mechanism and the upper clamping mechanism are of the same structure. The shaft mouth platform jacket wheel type moving mechanism can replace the job of manually carrying cleaning equipment to dive for underwater cleaning, the manual cost is saved, and the efficiency is high.

The invention provides a nested-type energy-saving nozzle which comprises a nozzle body and a nesting ring. The nested-type energy-saving nozzle is characterized in that the nozzle body comprises a head portion, a middle portion and a bottom portion; the head portion of the nozzle body is a conic body and a jet hole is formed in the top end of the head of the nozzle body; the middle of the nozzle body is a cylindrical body and at least two air holes are evenly formed in the cylindrical body; the bottom portion of the nozzle body is of a threaded structure; the nesting ring is matched with the middle portion of the nozzle body so that a gap structure can be formed, wherein an inner cavity with a conic top is formed in the nozzle body and a fluid channel communicated with the jet hole is further formed in the top of the inner cavity. After the nested-type energy-saving nozzle is installed in a metal machining lubricating device, point lubrication is achieved, the problem that gas consumption for metal near-dry machining lubrication is large in the prior art is solved, power sources are saved, and the nested-type energy-saving nozzle has the advantages of saving lubricating oil and being more environmentally friendly.

The invention discloses a device for clearing advertisement on a telegraph pole, and relates to a robot. A monitoring device, a telescopic tube, a fixed box (17) and a wireless device are arranged on a vehicle body (18); the bottom of the vehicle body (18) is equipped with wheels (19); a fixed tube (9) is arranged on the telescopic tube; a water inlet tube and a fixed rod (7) are arranged on the fixed tube (9); a clearing device is arranged on the fixed rod (7); the water inlet tube is separately connected with the fixed tube (9) and the clearing device; a cover body (8) is arranged on the clearing device; a dirt containing device is arranged on the fixed box (17); a water outlet tube (16) is arranged on the dirt containing device; and the water outlet tube (16) is connected with the fixed box (17). The device is high in practicability, can be used for quickly and efficiently clearing small advertisement on the telegraph pole, prevents a phenomenon that environmental pollution is caused as wastewater of clearing the small advertisement in a clearing process flows into the ground, reduces clearing cost, and brings great convenience to life and work of people.

The invention provides an oil-water-gas three-phase mixing nozzle which is characterized by comprising a nozzle body and a nesting ring, wherein the nozzle body comprises a head part, a middle part and a bottom part; the head part of the nozzle body is a cone, a jet hole is formed in the top end of the cone, and at least two water spray holes are uniformly distributed in the cone; the middle part of the nozzle body is a cylinder, and at least two gas holes are uniformly formed in the cylinder; the bottom part of the nozzle body is of a thread structure; the nesting ring and the middle part of the nozzle body form a clearance structure in a matching manner. The oil-water-gas three-phase mixing nozzle is simple in design and is suitable for a variety of oils and used in trace lubrication devices for metal processing.

The invention relates to an encircling marine organism clearing robot used for the outer surface of an undersea steel structure pipeline. The robot comprises a robot traveling unit and a movable clearing unit arranged on the robot traveling unit. The robot traveling unit comprises an upper arc-shaped fixing plate, a lower arc-shaped fixing plate, a magnetic suspension adsorption assembly, a travelling drive mechanism and a lifting mechanism, wherein the upper arc-shaped fixing plate and the lower arc-shaped fixing plate are arranged parallel to each other; and the magnetic suspension adsorption assembly, the travelling drive mechanism and the lifting mechanism are arranged between the upper arc-shaped fixing plate and the lower arc-shaped fixing plate. The movable clearing unit comprises an arc-shaped fixing support arranged on the upper arc-shaped fixing plate, an arc-shaped rack arranged on the arc-shaped fixing support, and a cavitation water jet mechanism which is movably arranged on the arc-shaped fixing support in the circumferential direction and is engaged with the arc-shaped rack. Compared with the prior art, the cavitation water jet mode is adopted for clearing marine organisms on the outer surface of the undersea steel structure pipeline, so that the clearing efficiency is high, clearing cost is low, working is stable, dismounting and mounting are convenient, safety is good, and the applied range is wide.

The invention discloses a detection device for prospecting an internal structure of a karst cave and a prospecting method thereof, relates to the field of the detection of the karst cave. The detection device comprises a first protection cover, a second protection cover, a third protection cover and a testing cable, wherein the first protection cover is connected with the third protection cover through the second protection cover, both the second protection cover and the third protection cover are made of a transparent material, a rotating camera, a laser head and a first illuminating device are arranged in the second protection cover, the rotating camera is fixedly connected with the first illuminating device, the laser head is arranged below a camera lens of the rotating camera, and the rotating camera is electrically connected with a power device and a signal conversion device; a second illuminating device is horizontally arranged inside the third protection device, and the bottom of the second illuminating device is provided with a depth camera for detecting the depth. By adopting the detection device and the prospecting method, not only can the existence of the karst cave be determined, but also the depth and internal attitude of the karst cave can be accurately prospected.

The invention discloses a rolling-up mechanism of an aluminum strip leftover material. The rolling-up mechanism comprises a one-way intermittent driving mechanism, a base, a rolling-up shaft, driving and driven guide rollers, wherein driving gears and driven gears are respectively fixed at one end of a roll shaft of the driving guide roller and one end of a roll shaft of the driven guide roller; and a driven bevel gear is further fixed at the other end of the roll shaft of the driving guide roller; the one-way intermittent driving mechanism comprises a driving rotary plate, a connecting rod, an output shaft and a ratchet wheel component; a driving bevel gear is arranged on the output shaft; one end of the connecting rod is eccentrically hinged with the driving rotary plate, and the other end of the connecting rod is hinged with the ratchet wheel component arranged on the output shaft; the rolling-up shaft is arranged on the base; and the roll shaft of the driving guide roller or the driven guide roller is connected with the rolling-up shaft through a belt and belt wheel transmission mechanism. Through the rolling-up mechanism, sheet metal strips, particularly leftover material after aluminum strips are punched, can be automatically collected.

The invention provides an environment-friendly alcohol group ceramic casting coating. The environment-friendly alcohol group ceramic casting coating comprises, by weight, 250-350 parts of high-alumina powder, 50-150 parts of silica powder, 150-200 parts of pyrophillite powder, 30-50 parts of cosolvent, 20-30 parts of suspending agents, 8-15 parts of binding agents, 1-3 parts of surfactant and 250-350 parts of solvent. The environment-friendly alcohol group ceramic casting coating overcomes the defects in the prior art and is high in refractoriness, good in sintering stripping effect, low in price and excellent in comprehensive performance.

The invention belongs to the technical field of water surface garbage cleaning, and particularly relates to floating type water surface solid garbage automatic cleaning equipment. The floating type water surface solid garbage automatic cleaning equipment comprises a bottom ring, a floating plate, a rotary concentration mechanism and a collection mechanism; the bottom ring is located at the center of a lake surface; and the floating plate is made of a rubber material and floats on the water surface, and the inner surface of the floating plate is fixedly sleeved with the peripheral side face of the upper end of the bottom ring. According to the floating type water surface solid garbage automatic cleaning equipment, the rotary concentration mechanism is arranged to complete concentration of lake surface garbage, garbage on a first filter screen is moved out of the water surface and moves to the position above a collection base, garbage floating around a vortex is concentrated and is convenient to treat, and the collection mechanism completes collection of the garbage concentrated on the collection base; and the concentrated garbage is collected through a filter bag, the purpose of treating the garbage on the lake surface can be achieved by treating the garbage in the filter bag, workers can clean the garbage conveniently, the workload of the workers is reduced, and the cleaning cost and the danger coefficient are reduced.

The invention discloses a paint mist coagulant and a preparation method thereof. The paint mist coagulant comprises an agent A and an agent B, wherein the agent A is an aqueous solution which is prepared by taking a macromolecular polymeric metal salt as a main component; the macromolecular polymeric metal salt is aluminum salt or ferric salt; and the agent B is an aqueous solution which is prepared from a polyamide substance with the molecular weight of 9000000-12000000. In the application, paint wastewater, the agent A and the agent B are mixed according to a volume ratio of 500: 2: 1, paint in the paint wastewater agglomerates and floats upwards, the paint is separated from water to obtain clear water, and the clear water is reused; the application method is that the agent A is added and uniformly mixed firstly and then the agent B is added; and the treated paint wastewater is fat-soluble treated paint wastewater and water-soluble treated paint wastewater. The chemicals used in the invention are wide in source; the defects that the conventional process of preparing the paint mist coagulant is complicated and many complicated and expensive chemicals are added are overcome; the treatment cost of the ordinary paint wastewater can be reduced to 0.25 Yuan per ton; and the paint mist coagulant can be widely applied to circulating water treatment of a wet-type paint mist removing system.

The invention provides an air energy water heater with defrosting and scale removing functions. The air energy water heater comprises a compressor and a water tank. The top of the water tank is detachably connected with a tank cover. A long-strip-shaped scraper located between a heat exchange coiled pipe and the inner side wall of the water tank is vertically arranged in the water tank. The two lateral sides of the scraper are close to the outer side wall of the heat exchange coiled pipe and the inner side wall of the water tank correspondingly. The top of the scraper is connected with a sleeve. The outer side of the upper portion of the sleeve is sleeved with a driven gear. The driven gear is engaged with a driving gear. A stepping motor is arranged on the outer side of the water tank. A medium circulation pipeline penetrates the interior of the sleeve and penetrates the tank cover to be connected with the heat exchange coiled pipe. An ultrasonic transducer is arranged on the side of an evaporator and connected with an ultrasonic generator. The air energy water heater has the beneficial effects that operation is simple, the removal cost is low, water scale on the heat exchange coiled pipe can be removed in time, and reduction of the heat exchange efficiency and increase of the energy consumption are avoided. Defrosting is conducted through power ultrasound, the defrosting effect and the frosting restraining effect are improved, and the energy consumption for defrosting is lowered.

The invention discloses a big data cleaning method used for a digital library, and relates to the technical field of data cleaning. The method comprises the following steps of defining data cleaning schemes; preprocessing data; determining the type of dirty data and the corresponding cleaning scheme; performing missing value filling; performing inconsistent data restoration; automatically detecting attribute errors in a data set; cleaning repeated data; and enabling clean data to flow back to a target data source. By defining the data cleaning schemes by a user, preprocessing the data, performing the missing value filling, performing the inconsistent data restoration, modifying the attribute errors, cleaning the repeated data and enabling the clean data to flow back to the target data source, the interaction between the data and the user in the cleaning process is improved; the user controls the cleaning process in real time; and exceptions in the cleaning process are processed, so that the errors are reduced, the efficiency is improved, the data cleaning cost is reduced, the data quality is improved, the correctness and accuracy of data mining are ensured, and a high-quality mining result is obtained.

The invention relates to the field of cleaning devices, in particular to construction site steel pipe surface cleaning equipment. The equipment comprises a base and a cleaning box and further comprises a controller, a conveying mechanism, a beating mechanism and a scraping mechanism. The conveying mechanism is arranged at the top of the base to be used for conveying steel pipes and comprises a transmission assembly and two conveying tables. The beating mechanism is arranged at the top of the inner side of the cleaning box and used for beating the steel pipes, the beating mechanism comprises ahammer head and a rotating assembly, the scraping mechanism is arranged at the top of the inner side of the cleaning box and used for scraping impurities such as concrete on the surfaces of the steelpipes, the scraping mechanism comprises a scraping head, a pushing assembly and a limiting assembly, and the transmission assembly is electrically connected with the controller. According to the construction site steel pipe surface cleaning equipment, manpower is automatically replaced, the cleaning efficiency is high, the labor intensity is low, the noise is low, meanwhile, the power consumptionis low, the cleaning cost can be reduced, the cleaned impurities can be effectively collected, and pollution is avoided.

The invention relates to a process for cleaning high-precision screen printing plates, which comprises the steps of: 1 rapidly taking down a screen printing plate in one minute after printing, and collecting residual silver paste on the screen printing plate in two minutes; 2 simultaneously wiping the front side and the back side of the screen printing plate with non-woven fabric wetted in a TM plate washing agent along the direction of mesh stretching angles; 3 after the both sides of the screen printing plate are cleaned by the TM washing agent, simultaneously wiping the front and the back sides of graphics fields with non-woven fabric wetted in a DM plate washing agent along the direction of mesh stretching angles, 4 checking graphs with lights, if partial graphs are invisible, simultaneously wiping the front and the back sides of the field with non-woven fabric wetted in the DM plate washing agent along the direction of mesh stretching angles, until the graphs are visible, wherein the whole wiping process is not more than ten minutes; and 5 after the screen plating plate is wiped clean, drying the screen printing plate with an ion blower gun. The process can rapidly clean the high-precision screen printing plates completely, and is quite effective to plates with high-precision screen printing silver paste that is difficult to be cleaned, has low cleaning cost, and guarantees the normal production.

The invention relates to the technical field of geotechnical investigation construction, in particular to a cast-in-situ bored pile hole forming method. The cast-in-situ bored pile hole forming methodcomprises the steps of carrying out preparation before construction, carrying out pile casing burying, carrying out drilling, carrying out hole cleaning, carrying out drainage hole drilling, carryingout chambering and the like, and in the chambering step, a pre-drilled pile hole during drilling is gradually squeezed to the designed pile hole diameter through three times of squeezing and chambering. The method has the effects that a small amount of soil is discharged in the hole forming process so that pollution to the construction environment can be reduced, and the construction pollution discharge cost is reduced.

The invention provides a rotary dropwise adding and mixing device for phosphorous acid ingredient production, and relates to the field of mixing devices. The invention aims to solve the problems that when an existing phosphorous acid raw material mixing device is used, raw materials need to be slowly added during raw material adding due to the characteristics of phosphorous acid, the inner wall of a container cannot be cleaned in an auxiliary mode during adding, and adhered raw materials cannot be cleaned. The device provided by the invention comprises a round pipe and auxiliary parts which are arranged in the middle of the interior of a rotating disc, wherein the auxiliary parts are annularly arranged, and the auxiliary parts are installed at the bottom of the rotating disc through connecting blocks. Each auxiliary part comprises a scraping plate, wherein the scraping plate is fixed to the outer end of an outer rod, and the outer side of the scraping plate makes contact with the inner wall of a main body; meanwhile, when the auxiliary part rotates along with the rotating disc, the scraping plate can be driven to rotate together, the outer side of the scraping plate makes contact with the inner wall of the main body, and the scraping plate can effectively scrape the inner wall of the main body; and thus, raw material residues are reduced, and the situation that raw materials adhere to the inner wall of the main body and cannot be cleaned is avoided.

Reactor arrangement (I), for carrying out catalytic gaseous phase reactions, comprises a jacket tube reactor (2), a bundle of tubes and a separate, after cooler (3) directly connected to the side outlet, where the cross sectional area in the after cooler is essentially congruent with the cross sectional area in the jacket and both the cross sectional areas are oppositely paired in large numbers. - Reactor arrangement (I), for carrying out catalytic gaseous phase reactions, comprises a jacket tube reactor (2), a bundle of tubes with a number of catalyst-filled reaction tubes surrounded by the jacket, (where the reaction bundle of tubes lies in a cross sectional area perpendicularly to the longitudinal axis of the reaction tubes) and a separate, after cooler (3) directly connected to the side outlet (where the reaction tubes with the cooling tubes is surrounded by the envelope, the number of the cooling tubes is less than the reaction tube and the cooling tubes lies in a cross sectional area perpendicularly to the longitudinal axis of the cooling tubes (21)), where the cross sectional area (26, 27) in the after cooler is essentially congruent with the cross sectional area in the jacket tube reactor and both the cross sectional areas are oppositely paired in large numbers and in large parts with essentially same ratio of current cross-section of cooling tubes to the lower current cross section of the reaction tubes (7).

The invention provides a cleaning device for an oil storage tank. The cleaning device comprises an oil storage tank body, compression devices, a connection plate, connection devices, a threaded rod, arotary motor, a water storage tank and a cleaning assembly. The two first compression devices are symmetrically arranged at the top end of the side wall of the oil storage tank body. The connection plate is fixedly connected between the two first compression devices. The upper portion of the connection plate is slidably connected with the threaded rod through the connection devices. One end of the threaded rod is connected with the one first compression device. The other end of the threaded rod penetrates through the other first compression device and is connected with the output end of the rotary motor. The lower portion of the connection plate is connected with the water storage tank. A plurality of cleaning device bodies are arranged around the outer wall of the water storage tank andabut against the inner wall of the oil storage tank body. The rotary motor can drive the connection plate and the water storage tank to slide up and down, so that the cleaning device bodies move up and down to clean the inner wall of the oil storage tank body. Through the provided cleaning device for the oil storage tank, labor intensity can be relieved, cleaning cost is lowered, and cleaning efficiency is improved.

The invention provides an alternative movable mechanism applied to an offshore oilfield wellhead platform pipeline rack. The alternative movable mechanism achieves the shinning on a pipeline by the alternative movement of an upper shinning device and lower shinning device under the action of a transmission device. The alternative movable mechanism applied to the offshore oilfield wellhead platformpipeline rack can achieve the shinning on a straight pipeline, the shinning on a bent pipeline and the rotation with 360 degrees around the pipeline, and the operation and control are simple. By theshinning on the straight pipeline, the shinning on the bent pipeline and the rotation with 360 degrees around the pipeline, marine organisms attached to the pipeline can be cleaned, at the same time,different side faces of the pipeline can be cleaned, and the omni-directional cleaning of the pipeline is achieved. The alternative movable mechanism applied to the offshore oilfield wellhead platformpipeline rack has the advantages that the structure is simple, the operation is convenient, the mechanism has higher cleaning efficient, the cleaning cost is reduced, the freeweight cleaning is achieved, and the damage of the severe environment on workers can be also avoided.

The invention discloses a casting sand core paint dipping process. The casting sand core paint dipping process comprises the following steps: a manufactured casting sand core is taken out; floating sand is blown off; an anti-sintering paint layer is coated in the thick and turning places of the casting sand core, is 0.25-0.31 mm thick, is dried by 10-12 h, and is cooled to the room temperature; and the casting sand core with the anti-sintering paint layer on the surface is positioned in casting paint for dipping by a thickness of 0.225-0.25 mm, and is dried. In the casting sand core paint dipping process, the anti-sintering paint layer is coated locally before paint dipping, so that the sand bonding and sintering defects of the casting sand core can be effectively reduced or prevented, the casting surface roughness is reduced, and the casting cleaning cost is reduced, and the surface quality of the casting sand core is guaranteed.

The invention relates to a modified sodium silicate sand and making method thereof, and belongs to the chemical field. The modified sodium silicate sand and making method thereof are characterized in that: 25% sodium polyacrylate solution whose weight is 5-8% of that of soluble glass is added into 50-52 baume degree soluble glass, the solution is stirred for producing the modified soluble glass, after uniform stirring, the sand mold with high intensity is obtained. The invention has the advantages that additive is added into common soluble glass with slightly increased cost, and the sand mold intensity is improved, and the sand mold collapsibility is improved, and the cleaning labor intensity is reduced, and the cleaning cost is saved.

The invention discloses a pressure measurement data storage isolation method and device, computer equipment and a storage medium, and the method comprises the steps: receiving a concurrent business request at a terminal, and enabling the concurrent business request at the terminal to comprise a business request of a user terminal and a business request of a pressure measurement terminal; performing service logic processing on the concurrent service request at the terminal according to the middleware to obtain pressure measurement data; judging the storage type of the pressure measurement data;if the storage type is DB storage, storing the pressure measurement data into a preset shadow database; if the storage type is Redis storage, identifying the Key of the pressure measurement data andsetting the expiration time of the identified Key; and if the storage type is MQ storage, storing the pressure measurement data into a preset message queue, identifying the pressure measurement data in the message queue, and setting expiration time. Based on the data processing technology, the stored and isolated pressure measurement data is easy to clean, and the cleaning cost is reduced.

The invention provides a soilless cover material for sanitary landfill of solid waste garbage. The soilless cover material for sanitary landfill of the solid waste garbage comprises components with parts by weight: water-soluble cellulose polymers 2-25 parts, plant fibers 20-100 parts, clay 10-100 parts, gypsum 5-50 parts and water 500-3000 parts, wherein the water-soluble cellulose polymers is an ionic type, and the plant fibers are an expanded type. The soilless cover material for sanitary landfill of the solid waste garbage is degradable, is about 5%-10% in water penetration rate, also has a certain amount of water permeability, and has great promotion effect for breeding of garbage natural degradation bacteria. The soilless cover material for sanitary landfill of the solid waste garbage eliminates garbage layering after being degraded, enables garbage of a whole landfill to be an entirety, and plays great role for improving garbage density. Compared with other cover methods, the soilless cover material for sanitary landfill of the solid waste garbage has great advantages in cost.