14results about How to "Smooth pumping" patented technology

The application provides a shield balancing mud for a shield machine and a preparation method thereof, and belongs to the field of shield tunnel engineering. The shield balancing mud comprises the following raw materials: modified clay base material: 100 parts, composite flocculating agent: 6-15 parts, tackifying water-retaining agent: 1.5-4 parts, water-dispersing agent: 0.5-2.5 parts, organic crosslinking agent: 0.3-1.2 parts, thixotropy adjusting agent: 0.2-1.5 parts, and pH adjusting agent: 0.5-4 parts. In the application, the high-activity modified clay is used as a skeleton, the inorganic flocculation network is used to provide a dense structure resistant to water erosion, the borax-cellulose reversible crosslinking is used to realize the thixotropic property, the polyacrylamide is used to enhance the water-dispersing resistance, and the thixotropy adjusting agent is used to balance the dispersion and flocculation, so that the mud material simultaneously has excellent water-dispersing resistance and reversible thixotropy in a high-water-pressure water-rich stratum.

The utility model relates to cultural relic display tools, in particular to a cultural relic display cabinet which comprises a base, a glass cover and an air outlet pipe, a first motor is fixedly connected to one corner of the upper surface of the base in an embedded mode, a driving shaft of the first motor is fixedly connected with a screw rod, and the surface of the screw rod is in threaded connection with a lifting block. When inert gas is filled into the glass cover, the height of an air inlet of the air outlet pipe can be adjusted according to the density of different inert gas, the glass cover can be rapidly filled with the inert gas, the contact time of cultural relics and air is shortened, unnecessary consumption of the inert gas can be reduced, and the cultural relic protection effect of the cultural relic display cabinet is improved.

The utility model discloses a material circulating mechanism for wine fermentation equipment. The material circulating mechanism comprises a plurality of spray heads, the filter comprises an upper sealing plate mounted on the bottom side of the fermentation tank, the bottom side of the upper sealing plate is downwards connected with a corresponding isolation pipe through a corrugated pipe, and a filter plate provided with a plurality of filter holes is fixedly mounted at the bottom of the isolation pipe; the material pumping mechanism comprises a liquid pumping pump, the liquid inlet end of the liquid pumping pump is outwards connected with a first feeding pipe and a second feeding pipe in parallel, the liquid inlet end of the first feeding pipe is connected into the isolation pipe, the liquid inlet end of the second feeding pipe is connected to the bottom side of the fermentation tank, and the discharging end of the liquid pumping pump is connected to one side of the feeding end of the spray head through a conveying pipe; a backflushing pipe is connected between the conveying pipe and the first feeding pipe; and the position sensor is mounted on the bottom side of the isolation pipe. According to the utility model, whether the filter end is blocked or not can be effectively and accurately judged, and the filter end can be conveniently and quickly backwashed.

The invention relates to the technical field of tar residue treatment, in particular to mechanical residue removing equipment and process based on a tar residue storage tank, the residue removing equipment comprises the storage tank, a mixture conveying pump, a production unit and a guarantee unit, the mixture conveying pump is an intelligent variable frequency pump, and an outlet of the storage tank is connected with the input end of the mixture conveying pump; a flow detection module is mounted at the joint of the mixture conveying pump and the storage tank and is used for monitoring the flow of the tar residue mixture in real time and feeding back a signal to a control system of the mixture conveying pump; the output end of the mixture conveying pump is connected with the production unit, and the production unit is provided with two output ends, namely a solid output end and a liquid output end; the liquid output end is connected with the guarantee unit, and the guarantee unit comprises a showering system and a steaming and blowing system; the viscosity of the tar residues in the storage tank is greatly reduced through intermittent steaming and blowing softening and synchronous ammonia water spraying, the mixture conveying pump is smooth in pumping, and the problems that the tar residues in the storage tank are left and cannot be cleaned thoroughly are solved.

This utility model discloses a deep pit concrete conveying device, relating to the field of building construction technology. It includes a base and a first fixed rod: a first fixed rod is fixed to one side of the base, and a first sliding groove is formed on one side of the first fixed rod. A second motor is bolted to the top of the first fixed rod. The deep pit concrete conveying device drives the threaded shaft in the middle of the first fixed rod to rotate via the second motor. The rotation of the threaded shaft then drives the threaded seat connected to it to move axially, and the fixed seat is slidably connected to the limiting shaft in the middle of the second fixed rod. This allows the limiting shaft to limit and guide the movement of the fixed seat, ensuring that it moves vertically. This allows for easy adjustment of the fixed seat height according to the needs of the deep pit, adapting to different depths and complexities of deep pit construction environments, improving concrete conveying efficiency, and meeting the requirements for deep pit concrete use.

The present invention belongs to the technical field of waste oil recovery equipment, and is particularly a centralized oil supply and filtration system, including an oil tank group, a centralized oil supply system, a circulating filtration system and a control system, wherein the oil tank group is connected to the circulating filtration system and the centralized oil supply system, wherein the centralized oil supply system includes an oil supply pump and a standby pump, wherein the oil tank group includes a sedimentation oil tank, a drying oil tank, a dirty oil tank and a clean oil tank, wherein the circulating filtration system includes a filter system 1, a filter system 2, a filter system 3 and a filter system 4, wherein the number of oil pumps is five, the number of standby pumps is one, the standby pump pipeline is connected to the five-way oil supply pipelines of the other five oil supply pumps, a heating system is centralized at the bottom of the clean oil tank, and an oil-water-gas separation system is installed in the clean oil tank. In the centralized oil supply and filtration system, waste oil can be filtered layer by layer through the cooperation of the oil tank group and the circulating filtration system, and can finally be used, and then supplied with oil through the centralized rack of the oil supply system.

This utility model discloses a water-changing screen box with an adjustable screen, comprising: a motor-driven agitator rotating column that rotates an agitator plate to effectively stir the water, preventing seedlings from adsorbing and settling; an auxiliary water pump that enhances the pumping power of the siphon outlet pipe, improving water circulation efficiency; and a pumping pipe that directionally extracts the disturbed water. Combined with a detachable flexible filter cover, this design prevents seedlings and impurities from clogging the pipes, facilitates cleaning and replacement, ensures smooth water extraction, and overall improves the stability and controllability of the seedling environment.

A waste acid vulcanization reaction device comprises a reaction tank, the bottom of the reaction tank is communicated with a barrel-shaped mixing section, and the leading-in directions of a waste acid inlet pipe and a vulcanizing agent inlet pipe which are communicated with the mixing section are located at high-low staggered avoiding positions. The leading-in direction of the waste acid inlet pipe and the leading-in direction of the vulcanizing agent inlet pipe avoid each other and form a high-low staggered posture, so that in the pumping process of waste acid and a vulcanizing agent, the situation that the vulcanizing agent is difficult to pump out due to the direct hedging effect of the waste acid and the vulcanizing agent is avoided, the waste acid and the vulcanizing agent can be smoothly pumped into the reaction tank, and the service life of the waste acid and the vulcanizing agent is prolonged. And the treatment quality of the acidic wastewater is ensured.

The utility model discloses vacuum pumping equipment for vacuum preloading soft foundation treatment, which comprises a box body, a left side plate arranged on the box body, a vacuum filter fixedly arranged on the left side plate, a pipe joint arranged on the vacuum filter, an input pipe arranged at the output end of the vacuum filter, a three-way piece arranged on the input pipe, and a vacuum pump arranged on the three-way piece, a buffer storage tank inlet pipe is installed at one end of the three-way piece, a buffer storage tank, an electric cabinet, a vacuum pump, a gas filter and a steel wire pipe are arranged in the box body, the buffer storage tank is transversely arranged, an electric cabinet mounting base, a vacuum pump mounting plate and a gas output pipe are arranged on the buffer storage tank, and the vacuum pump is installed on the vacuum pump mounting plate; a suction connector pipe is arranged on the vacuum pump, the steel wire pipe is connected with the gas filter, and a bent connector is arranged between the steel wire pipe and the gas output pipe. The vacuum pumping device has the advantages that the situation that the interior of the vacuum pumping device is stuck and damaged is avoided, gas is buffered and filtered, the vacuum degree is improved, and pumping power is kept.

The invention discloses pentaerythritol tetra (6-naphthyl hexanoic acid) ester and a preparation method and application thereof, the preparation method adopts two-step reaction of alkylation and esterification, the first step is that naphthalene and 5-hexenoic acid are subjected to alkylation reaction to generate 6-(1-naphthyl) hexanoic acid; and 2, carrying out a reaction on the 6-(1-naphthyl) hexanoic acid and thionyl chloride, and carrying out an esterification reaction with pentaerythritol to finally obtain the oily pentaerythritol tetra (6-naphthyl hexanoic acid) ester. The prepared pentaerythritol tetra (6-naphthyl hexanoate) ester has a structure with a symmetric four-arm core, a flexible alkyl chain and a rigid naphthalene end group, is shown as a formula (I), is used for lubrication and sealing of various equipment, and has the advantages of oxidation resistance, high and low temperature resistance, extreme pressure resistance, good lubrication and sealing performance and the like.

The utility model discloses a kind of photovoltaic cable weatherability packaging coating devices, including coating box, including the collection box for dressing collection, for providing coating space support frame, and for dressing recovery discharge recovery pipe, coating component, including for coating construction coating roller, liquid storage component, including fixed in the support frame top for temporary storage liquid storage tank, the utility model is stirred by component, it includes the second motor and second speed reducer fixed in the shell top, and stirring shaft and stirring blade for stirring dressing are installed in the inner chamber of inner bag, by the cooperation of stirring component, the dressing in the inner bag can be continuously stirred, by heater, thermocouple, liquid level sensor and PID controller in liquid storage component mutually cooperate, the heat medium in hollow interlayer can be heated, so that it keeps suitable temperature, prevent dressing solidification, ensure that subsequent pumping and coating operation can be smoothly carried out.

The utility model provides a simple device for secondary screening of cement paste for mud jacking operation, which belongs to the technical field of building construction and comprises a mounting frame, a screen mesh and a mounting ring, an anti-blocking component arranged on the inner wall of the mounting frame and used for fixing the screen mesh on the outer wall of the mounting frame, and an anti-blocking component arranged on the outer wall of the mounting frame. Wherein the anti-blocking assembly comprises a sealing shell, a sealing opening, a reinforcing rib, a vibration ring, a driving assembly and an impact ring, the sealing opening is formed in the circumferential surface of the outer wall of the sealing shell, the reinforcing rib is fixedly arranged on the outer wall of the screen, the vibration ring is rotationally embedded in the inner wall of the sealing shell, the driving assembly is arranged on the inner wall of the sealing shell, and the impact ring is matched with the vibration ring. The problem that the construction quality is finally seriously influenced by blockage of a slurry conveying pipeline and a nozzle due to the fact that cement slurry is not secondarily sieved in all existing grouting operations is solved, smooth pumping of the cement slurry and normal proceeding of the construction operations are guaranteed, meanwhile, the situation that the filtering efficiency is reduced due to the fact that crushed aggregates block a screen is avoided, and the working stability is improved.

This utility model relates to the field of automotive wheel hub manufacturing technology and discloses a rapid exhaust and cooling device for automotive wheel hub molds, including an exhaust pin cover plate, an exhaust pipe, and an intelligent digital exhaust fan. The exhaust pin cover plate is locked onto the upper mold by a series of screws arranged in a ring at equal intervals to achieve a sealed fixation. The exhaust pipe includes four exhaust branch pipes and one exhaust main pipe. One end of each of the four exhaust branch pipes is connected to the exhaust pin cover plate, and the other end is connected to the exhaust main pipe. The exhaust main pipe is connected to the intelligent digital exhaust fan. The intelligent digital exhaust fan adjusts the exhaust interval and exhaust time according to the casting mold conditions, enabling rapid exhaust and cooling, improving production efficiency and wheel hub qualification rate, and also recovering high-temperature gas to heat bath water to save resources. It solves the problems of slow cooling and shrinkage cavities through efficient exhaust and utilizes exhaust waste heat for resource recovery, combining the advantages of production optimization and energy saving.

The utility model is suitable for the technical field of pollution control, and provides a pollution control wet electric dust removal device which comprises a dust removal box with a sealing cover plate at the top, the corona wires are arranged at the bottom of the sealing cover plate; the anode tubes are arranged in the dust removal box; the plurality of conducting rods are fixedly mounted among the plurality of anode tubes; the plurality of conducting rods are fixedly connected with the inner wall of the dust removal box; the precipitation water tank is arranged at the bottom of the dust removal box; the air inlet pipe is arranged on the dust removal box; and the air outlet pipe is arranged on the sealing cover plate. According to the wet electric dust removal device for pollution control, dust in air can be efficiently adsorbed, precipitated water can be recycled, water resources are saved, opening and closing of the wet electric dust removal device are controlled conveniently, and therefore workers can overhaul and maintain the wet electric dust removal device conveniently.