31results about How to "Reduce pipe clogging" patented technology

The invention belongs to the technical field of concrete admixtures, and discloses a suspension type alkali-free liquid accelerator and a preparation method thereof. The preparation method comprises the following steps: firstly, respectively preparing magnesium-aluminum layered double hydroxide and an amino-terminated hyperbranched polymer, then adding the magnesium-aluminum layered double hydroxide and the amino-terminated hyperbranched polymer into water, stirring and dispersing uniformly, and then adding aluminum sulfate and a pH regulator, stirring and dispersing uniformly to obtain the suspension type alkali-free liquid accelerator. The magnesium-aluminum layered double-metal hydroxide with high dispersing performance and high specific surface area is further cooperated with the amino-terminated hyperbranched polymer to form a co-stabilizing system and a tackifying system of an inorganic-organic polymer, so that a high-concentration supersaturated aluminum sulfate solution system can be subjected to suspension stabilization; and a good quick-setting effect can be achieved, the early strength of the concrete is improved, the rebound rate of the sprayed concrete is reduced, and the pipe blocking phenomenon in the application process of the sprayed concrete is effectively improved.

A method for treating an oil-containing water-containing material includes mixing the oil-containing water-containing material with a solvent at a first temperature to obtain a mixture containing a solid material and a liquid material; subjecting the mixture to a first time of separation to obtain the solid material and the liquid material; subjecting the obtained liquid material to a second timeof separation at a second temperature to obtain a water phase and an organic phase; and subjecting the obtained organic phase to a third time of separation to obtain the separated solvent and separated oil. The intersolubility between the solvent and water at the first temperature is higher than that at the second temperature so that water separation and recovery in the method do not undergo phaseconversion, but are achieved through liquid-liquid separation, thus effectively reducing energy consumption. The invention further relates to a corresponding apparatus.

The invention relates to a pulse type positive-pressure single hand clamp remaining needle. The pulse type positive-pressure single hand clamp remaining needle comprises a sleeve base, an extension tube, a pulse type positive-pressure single hand clamp and a tee joint, wherein one end of the extension tube is connected with a side branch tube of the sleeve base, and the other end of the extension base is connected with the tee joint; the pulse type positive-pressure single hand clamp is located on the extension tube; through holes are formed in the front part and the rear part of the pulse type positive-pressure single hand clamp, the middle part of the pulse type positive-pressure single hand clamp is provided with a tube sealing clamping piece and a clamping base, and a press and touch part between the tube sealing clamping piece and the clamping base is provided with at least two cross beam type convex parts. According to the pulse type positive-pressure single hand clamp remaining needle disclosed by the invention, because the pulse type positive-pressure single hand clamp is adopted, the tube sealing clamping piece of the pulse type positive-pressure single hand clamp is enabled to be closely attached to the clamping base so as to clamp the extension tube, pulse type positive pressure which is generated by sequentially pressing the extension tube downwards by utilizing the at least two cross beam type convex parts is used for extruding liquid in a tube to enter the extension tube, the positive pressure of tube sealing liquid is increased, and blood return and tube blocking phenomena are greatly reduced.

The invention discloses a U-shaped cavity rotor type concrete spraying machine for dry spraying and wet spraying. The concrete spraying machine comprises a storage unit, wherein the storage unit is connected with a charging unit; a spraying unit is arranged at a lower part of the charging unit; a U-shaped cavity is formed in the spraying unit and is rotatably connected with a discharging unit; the discharging unit is provided with a liquid accelerating agent supply pump. The concrete spraying machine has the advantages that the structure is simple; during dry spraying, powder accelerating agents are quantitatively added to a powder accelerating agent stock bin above a charging machine, the powder accelerating agents and concrete mixes are transported to a sprayer for watering together, and a mixture is sprayed to a sprayed surface; during wet spraying, liquid accelerating agents are mixed with wet concrete at the sprayer via a supply pump, the mixture is sprayed to the sprayed surface, thus dry spraying and wet spraying are realized, and the problems of a lot of dust and large rebound quantity of dry spraying concrete can be effectively solved; meanwhile the problems of complex wet spraying process, difficulty in washing and high possibility of plugging can be solved.

The invention discloses a pumping agentfor blowing silt solidified soil and a preparation method thereof. The provided pumping agent is compounded by lignin sulfonate, sulfonated tannin extract, sodium gluconate, polyethylene wax, polyacrylamide, talc and sodium carbonate. The weight part of each component is: 30 to 35 parts of the lignin sulfonate, 25 to 35 parts of the sulfonated tannin extract,2 to 4 parts of the sodium gluconate, 3 to 4 parts of the polyethylene wax, 1 to 2 parts of the polyacrylamide, 30 to 35 parts of the talc and 0.5 to 1 parts of the sodium carbonate. The pumping agent for hydraulic reclamation of silt solidified soil provided by the invention has the advantages of low addition amount, simple adding process and good environmental protection, and the addition of the pumping agent can significantly improve the fluidity, lubricity and stability of the fresh silt solidified soil, makes the low-water content fresh silt solidified soil (water content of 100 percentto 150 percent) to maintain good fluidity within 2h, ensures the late strength of the solidified soil and prolongs the pumpable time of the silt solidified soil, which helps to improve the efficiencyand quality of silt solidified soil hydraulic reclamation construction, and has obvious technical, economic and environmental advantages.

The invention discloses a remote-control sliding-type pulp distributor which comprises a sliding-type pulp distributor body, a movable remote-control pump station, a remote-control unit and an acousto-optic alarm. The sliding-type pulp distributor body and the movable remote-control pump station are connected with a hydraulic oil pipe with a quick joint, the acousto-optic alarm is arranged outsidethe movable remote-control pump station and electrically connected with the same through a cable, and the remote-control unit remotely controls the movable remote-control pump station through a radiosignal and controls running of the same to realize reliable switching of the sliding-type pulp distributor body. The remote-control sliding-type pulp distributor is reasonable in design, convenient and quick in mounting and demounting, safe, reliable, high in universality and easy in realizing function expanding.

The invention discloses an ultra-low emission integrated system of a supercritical carbon dioxide coal-fired boiler, and belongs to the technical field of ultra-low emission. The system comprises a boiler unit and a dust removal and denitration unit, wherein the boiler unit comprises an ammonia spraying combustor; the dust removal and denitration unit comprises a high-temperature dust remover, a high-temperature air preheater, an SCR denitration reactor, a low-temperature air preheater and an air blower which are sequentially connected; the high-temperature dust remover is arranged in front ofthe high-temperature air preheater; and an adjustable constant pressure valve is additionally arranged on the inner side of an inlet of the high-temperature dust remover and used for maintaining theflue gas pressure when the high-temperature dust remover normally works. The high-temperature dust remover is arranged in front of the high-temperature air preheater, the service life of the high-temperature air preheater can be greatly prolonged when flue gas subjected to dust removal passes through the high-temperature air preheater, and meanwhile the problem of pipeline blockage of the high-temperature air preheater is solved.

The invention applies to the technical field of sponge city irrigation and provides a sponge city rain collection and irrigation system, comprising a collection module, a filter module, an anti-evaporating module, a water storage module, a desilting module, a water delivery module, a water quantity control module, an irrigation module, a power control module, an external power module, and a solarmodule. The collection module collects rain and is connected with the filter module; the water quantity control module is connected with the irrigation module; the irrigation module irrigates plants;the external power module is connected with the power control module so as to supply a power source to the water delivery module via the power control module; the solar module is connected with the power control module to supply a power source to the water delivery module through the power control module; the power control module activates the external power module to supply water when the solar module has low power level.

Agricultural implements are used to transport material, such as inputs in the form of fertilizer, seed, treatment, or some combination thereof, to row units that apply the material to an area of a field. Metering systems can aid in metering and providing a desired amount of material, such as on-demand, to the row units. The metering systems move the metered material to the row units, such as with pneumatics or other fluids. The metering system can be improved by having primary and secondary nozzles of different sizes, which aid in increasing the speed of the fluid moving the material towards the row units. For example, a smaller diameter for the secondary nozzle will provide improved suction and air speed.

The invention discloses an elephant trunk method-based anti-blocking dredging system and a construction method thereof. The system comprises a probing and dredging device; the probing and dredging device comprises a case, a hoop type ring and a handheld end control device; the case is provided with a detector, and the bottom of the case is provided with an electric vibrating rod; one end, far away from a sleeve opening, of the hoop type ring is connected to the bottom of the case, a mounting hole for an elephant trunk to penetrate through is formed in the inner side of the ring, and a plurality of electric rollers are movably mounted in the mounting hole; and the handheld end control device is electrically connected to the electric vibrating rod, the electric rollers and the detector. The matched probing and dredging device is installed on the elephant trunk and moves along the elephant trunk through manual rope traction operation or complete remote control operation, a specific pipe blocking position is probed through an elephant trunk opening and a camera, and the vibrating rod is remotely operated to rotate to a proper position for vibrating and dredging; and pipe disassembly dredging and high-altitude operation are avoided, safety is guaranteed, meanwhile, construction is convenient, cost is saved, and the construction period is shortened. The dredging system is easy and convenient to operate, high in applicability, facilitates the application and popularization of the elephant trunk, and greatly improves the construction efficiency of deep foundation pits and mass concrete.

The invention discloses a central heating and temperature control system for a PU shoe sole casting production line. The system comprises a computer control cabinet and raw material drying ovens, a heating heat insulation box is arranged on the raw material drying ovens, a feed barrel is arranged in a cavity of the heating heat insulation box, heating boards are arranged at the bottom of the cavity of the heating heat insulation box, a speed regulating motor drives a metering pump to conveying feed liquid in the feed barrel to a temperature control box, a mixing casting head is arranged at a discharging outlet of the temperature control box, the temperature control box and the speed regulating motor are electrically connected with the computer control cabinet, a sliding support is arranged at the upper end of the heating heat insulation box and provided with a rotary valve, and the temperature control box is connected with the rotary valve. A pipeline of the central heating heat insulation system is much shortened than that of the traditional mode, and part of the pipeline is located in the heat insulation box. The feed pipeline of the mode is not provided with heating wires and heat insulation layers, use is convenient, and the pipe blocking phenomenon is reduced. Meanwhile, the raw material drying ovens are arranged at the lower portion of a casting molding machine to be concentrated, and by the adoption of the central heating heat insulation mode, energy consumption is reduced obviously.

The invention relates to a falling film head improved structure of a falling film reboiler. The falling film head improved structure of the falling film reboiler comprises a cylinder body, a tube plate and a sealing head; a first tube nest is fixed on the upper part of the tube plate through a screw fixing structure; a second tube nest is fixed above the first tube sheet through a connecting plate; the first tube nest, the second tube nest and the tube plate are parallel; small holes of the first tube nest are opposite to the hole bridges of the tube plate; small holes of the second tube nestare opposite to holes of the tube plate; the top end of the sealing head is provided with a feeding flange; the end part, extending inside the sealing head, of the feeding flange is provided with a feeding baffle; and small holes are uniformly distributed in the feeding baffle. According to the falling film head improved structure of the falling film reboiler, an original falling film head is improved to have distribution of two-stage screen plates, and is arranged to have an arc material stopping mechanism, so that the feeding distribution is more uniform; and with the distribution of two-stage screen plates, impulsive force to the tube plate is reduced, the feeding distribution is further uniform, and the phenomena of inner-wall material accumulation and pipe blocking of heat exchange pipes are reduced.

The invention provides a concrete conveying pipe manufacturing method, a concrete conveying pipe and pumping equipment. The concrete conveying pipe manufacturing method comprises the steps that an inner pipe and a prefabricated outer pipe are manufactured respectively, and the outer surface of the inner pipe and/or the inner surface of the prefabricated outer pipe are/is set to be rough surfaces; and the inner pipe is arranged in the prefabricated outer pipe in a composite mode, and a bonding glue layer is arranged between the inner pipe and the prefabricated outer pipe, so that the double-layer laminated concrete conveying pipe is formed. According to the concrete conveying pipe manufacturing method, the concrete conveying pipe and the pumping equipment, the bonding glue layer is arranged between the inner pipe and the outer pipe, and the rough surface is arranged to be connected with the bonding glue layer, so that firm compounding of the inner pipe and the outer pipe can be achieved, the phenomenon of chipping of the inner pipe can be avoided, the phenomena of pipe explosion and pipe blocking of the conveying pipe are reduced, the overall pressure bearing capacity of the conveying pipe is improved, and the cracking risk of the inner pipe is greatly reduced; and the conveying pipe is simple in structure, simple and convenient in production process, easy to implement, low in cost and suitable for mass production.

The invention relates to a part for a pump, a replacement method and an application thereof, particularly relates to a spectacle plate, a cutting ring and an S-shaped pipe of an S-shaped pipe valve for the pump, a replacement method and an application thereof and belongs to the technical field of development of concrete pump trucks. The part for the pump contains polyethylene with ultrahigh molecular weight. The part is used for conveying and spraying concrete, coal slurry, other thick slurry residues and fire-fighting water. Compared with the existing spectacle plate with a steel substrate and an overlaying wear-resistant layer, the spectacle plate designed by the invention is 3-5 times larger than the existing spectacle plate, and when the spectacle plate designed by the invention is matched with the cutting ring for use, the pumping life of the pump reaches 100,000 cubic meters. Simultaneously, the polyethylene with the ultrahigh molecular weight is nonstick to mediums such as concrete, is convenient in cleaning, is non-corrosive and is easy in maintenance and replacement. The part designed by the invention is long in service life, simple in replacement, low in production cost, easy in control of production accuracy and convenient in large-scale industrial application.

The invention relates to a biogas desulfurization and deodorization device and method, and belongs to the technical field of chemical engineering. The biogas desulfurization and deodorization device comprises a fan, a rich liquid pipeline, a circulating pump, a fan, an absorption and regeneration tower, a back pressure valve, a filter and a pressure controller; the absorption and regeneration tower comprises an absorption chamber and a regeneration chamber, the absorption chamber and the regeneration chamber are separated by a partition plate, and an overflow hole is formed in the partition plate; the fan is communicated with an air inlet of the absorption chamber, a liquid outlet of the absorption chamber is communicated with a liquid inlet of the regeneration chamber through the rich liquid pipeline, and a circulating pump is arranged on the rich liquid pipeline; a back pressure valve is arranged at an exhaust port of the regeneration chamber, and the pressure controller is connected with the back pressure valve and the absorption chamber; a blocking partition plate is arranged between the air inlet of the regeneration chamber and the overflow hole, and the fan is communicated with the air inlet of the regeneration chamber; and at least one liquid extraction opening is formed in the side wall of the regeneration chamber. The device disclosed by the invention can be used for continuous desulfurization production.

The invention provides a high-sulfur concentrate pump slurry inlet pipe anti-blocking device which comprises a first pipeline, a bent pipe and a second pipeline, wherein a water inlet of the bent pipe is communicated with a water outlet of the first pipeline, a water outlet of the bent pipe is communicated with a water inlet of the second pipeline, and the water inlet of the first pipeline is used for being communicated with a water outlet of a faucet. A water outlet of the pipeline II is formed in the bottom of the slurry inlet pipe of the sulfur concentrate pump. The invention further provides pulp feeding equipment of the high-sulfur concentrate pump. The invention further provides a mounting method of the anti-blocking device for the slurry inlet pipe of the high-sulfur concentrate pump. According to the anti-blocking device for the pulp inlet pipe of the high-sulfur concentrate pump, when sulfur concentrate pulp conditions change, the pulp inlet pipe of the sulfur concentrate pump cannot be blocked, and it is ensured that pulp in a pulp conveying pipe cannot be cut off, and the water pressure is enough to flush and disperse the pulp foam. The anti-blocking device for the slurry inlet pipe of the high-sulfur concentrate pump is simple in structure, small in size and convenient to install and operate.

The invention discloses an air humidifying device for strawberry greenhouse planting. The device comprises a mounting frame, spraying discs and a water pump; a T-shaped frame is fixedly connected with the bottom of the mounting frame; two groups of rotating plates are symmetrically and rotatably connected with two sides of the bottom of the T-shaped frame; the spraying discs are mounted at the bottoms of the two groups of rotating plates; a driving motor is mounted in the middle of the T-shaped frame; and the front end of the driving motor is in transmission connection with a cam. According to the air humidifying device for strawberry greenhouse planting, firstly, a combined linkage type humidifying structure is adopted, so that uniform swing humidifying treatment can be conducted on air in a greenhouse, the covering face of humidifying treatment of the air humidifying device is improved, and therefore the greenhouse air humidifying treatment effect is improved; and a liquid inlet filter structure is arranged in the device, and liquid entering the humidifying device can be filtered, so that the phenomenon that solid impurities enter the humidifying device and block a pipeline is reduced, and therefore the working stability of the air humidifying device is improved.