41results about How to "Guarantee not to enter" patented technology

The invention relates to an anti-corrosion inclusion bored concrete pile used for saline soil foundations and a construction method thereof. The bored concrete pile comprises a concrete pile body in structure, wherein the inside of the concrete pile body is provided with a reinforcement cage, a flexible, watertight and anticorrosive protection tube is covered on the bottom and periphery of the concrete pile body; and the watertight and anticorrosive protection tube is formed by hot-pressing or welding n layers of polyethylene geotextile bags and n-1 layers of geomembranes, and n is not less than 2. The construction method comprises the following steps: injecting cement mortar between pile holes and the watertight and anticorrosive protection tube, then injecting water in the watertight and anticorrosive protection tube to ensure that the watertight and anticorrosive protection tube expands to the pile hole wall, then injecting concrete paste in the watertight and anticorrosive protection tube, discharging water from the watertight and anticorrosive protection tube by using the concrete paste, and obtaining the bored concrete pile when concrete is set. The invention solves the anticorrosive problem of the concrete pile in saline soil areas, effectively reduces the production cost of the anti-corrosion bored concrete pile and satisfies the strength requirements of projects. The anti-corrosion inclusion bored concrete pile of the invention is applicable to the concrete pile construction with anticorrosive requirements and is especially used in saline soil foundations.

The invention provides a graphite dust collector which comprises an atomizer, a chip liquid pump, a chip liquid filtering screen, a dust absorption cover and a water-bath-type filter, wherein the atomizer is connected with the chip liquid pump; the chip liquid pump is connected with the chip liquid filtering screen through a chip liquid pipe; the chip liquid filtering screen intrudes into a chip liquid box; the dust absorption cover is internally provided with a common filtering screen and a magnetized filtering screen respectively, and is connected with the air intake end of an axial-flow-type fan; the water-bath-type filter is connected with the air exhaust end of the axial-flow-type fan, and intrudes into the chip liquid box; the atomizer atomizes and sprays out a high-pressure chip liquid, and the atomized chip liquid captures graphite dust in air; the dust absorption cover absorbs the captured atomized chip liquid and filters twice; the atomized chip liquid is filtered by the water-bath-type filter, and clean air is exhausted; and the chip liquid by the filtering screen arranged in the chip liquid box is subjected to secondary filtering, and then enters the chip liquid pump so as to form circulation. Visibly, the device captures the graphite dust generated during a ball graphite cast iron machining process through the atomized chip liquid, and achieves a dust collection effect through water bath filtration.

The invention discloses an upper part C-ring cutting device of a canned-motor pump, and belongs to the technical field of maintenance of large-scale canned-motor pumps of nuclear power plants. The device comprises a circumferential guide rail, a circumferential sliding block, a radial guide rail, a radial sliding block and an angle grinder; the circumferential guide rail is arranged on a pump flange through a circumferential support body assembly, and a gap is reserved between the circumferential guide rail and the pump flange; the circumferential sliding block is arranged on the circumferential guide rail, so that the circumferential sliding block can slide in the circumferential direction of the circumferential guide rail; the radial guide rail is fixed on the circumferential sliding block, and the radial sliding block is arranged on the radial guide rail, so that the radial sliding block can slide in the radial direction of the radial guide rail; and the angle grinder is arranged onthe radial sliding block. According to the device, when the whole canned-motor pump is replaced, the operation is simple, and the use is convenient and flexible.

The invention provides an integrative physical examination instrument for electrocardiogram detection and urinalysis, which relates to a medical appliance for the electrocardiogram detection and the urinalysis and aims to multiplex two conventional instruments by hardware to realize integration. Especially, a rubber roller of a miniature thermal printer drives a movement mechanism of a supporting board of test paper by means of frictional connection, a photoelectric sensor is successively aligned with a color lump of the urinalysis project test paper, an electrocardiogram signal analog amplifier is arranged on a main circuit board, six paths of electrocardiogram signals of the electrocardiogram signal analog amplifier are directly connected to the input ends A0 to A5 of an analog signal of a main microprocessor, the other two paths of electrocardiogram signals are connected to the input ends A6 and A7 of a multiplexing signal of the main microprocessor by the gating of an analog switch (103), a red-green-blue three-color LED luminotron (10) and a light-sensitive cell (13) are arranged on a circuit board (0) of the photoelectric sensor, photoelectromotive force which is generated by the light-sensitive cell and is relevant to the color change of the color lump of the test paper also enters multiplexing passages A6 and A7 by the gating of the analog switch, and the gating of the analog switch is controlled by a photoelectric sensing signal transmitted by an infrared photoelectric switch element (17) when the supporting board of the test paper is inserted at the position of a pole terminal.

The invention provides a lithium ion battery rack with double pipelines. The device comprises a battery rack, a cooling pipe, an exhaust pipe and a battery box; the battery rack comprises four mounting columns; the same top plate is mounted at the top ends of the four mounting columns; the same bottom plate is mounted at the bottom ends of the four mounting columns; a plurality of partition platesare mounted among the four mounting columns; the cooling pipe comprises an air supply pipe and an air inflow pipe; the air supply pipe is communicated with the air inflow pipe; a plurality of air outlets are formed in the air supply pipe; a first fan is mounted at the junction of the air supply pipe and the air inflow pipe; wherein the exhaust pipe comprises a main pipe and a plurality of branchpipes; the bottom side of the exhaust pipe is an air inlet; the top side of the exhaust pipe is an air outlet; the battery box comprises a box body; an air outflow pipe is arranged on the box body; aone-way valve is arranged in the air outflow pipe; cooling fins are arranged on the bottom side of the box body; the air outlet is connected with the cooling fins; and the air outflow pipe is connected with the corresponding branch pipes. The lithium ion battery rack with the double pipelines has the advantages of good heat dissipation effect, high safety performance and simple structure.

A mounting method of a torsion bar component is characterized in that a mounting hole corresponding to the torsion bar component is machined in a framework of a bogie; the torsion bar component transversely penetrates through the mounting hole, and the torsion bar component is connected with the mounting hole in the form of interference fit; a stopper used for axially limiting the torsion bar component is arranged in the mounting hole; and the stopper is in contact with the torsion bar component in an abutting manner. According to the mounting method of the torsion bar component, as the torsion bar component is directly mounted on the framework, a supporting seat component in an anti-roll torsion bar system is eliminated, the structure of an anti-roll torsion bar component is simplified, the production cost is reduced, the use reliability of the torsion bar component is not affected in the case of guaranteeing that the supporting seat component is eliminated, the connection between the torsion bar component and the framework is easy to realize, the connecting mode is simpler, the labor intensity of mounting the torsion bar component on the framework can be effectively reduced, and moreover, the space occupancy rate of the a connecting structure between the torsion bar component and the framework is small, and the structural compactness of the connecting structure between the torsion bar component and the framework is high. The invention further provides a torsion bar component mounting structure.

The invention discloses a manganese slag field in-situ treating agent and a using method thereof. The manganese slag field in-situ treating agent is formed by mixing the following raw materials in parts by mass: 15-30 parts of nano-scale calcium carbonate, 5-15 parts of sodium carbonate, 5-10 parts of ammonium bicarbonate and 55-65 parts of wormcast. The manganese slag field in-situ treating agent has the key point that manganese ions in a slag field and a percolate solution are mineralized by selecting excellent and efficient instant ion-type and nano-scale slow-release type manganese mineralizing agents and adopting a scientific proportion so as to generate insoluble minerals, and therefore, the ion activity is reduced, the ions are enabled not to migrate and transform under the nature condition so that the purpose of treating the pollution of the manganese slag field is achieved. According to the using method, by using a solubility product principle, carbanions are introduced in manganese slag to ensure that the free-state manganese ions are combined with the carbanions to form insoluble manganese carbonate, and the free-state manganese ions in the manganese slag are transformed into mineral-state manganese ions, and thus the manganese ions are fixed.

The invention relates to improvement of a probe of a streaming potential online measuring instrument and in particular relates to a novel design of a water inlet and a water outlet of a probe as improvement of a streaming potential online measuring instrument. The probe comprises a probe water inlet, a probe water outlet and a measuring chamber, wherein sand grains are sent into the probe along with sampling water from the probe water inlet to move in a parabolic manner; in the design of a registered streaming potential online measuring instrument, the water inlet and the water outlet of the probe are arranged on the same horizontal line; the fed sand grains are incapable of being discharged out of the outlet and enter the measuring chamber of the instrument, thus measuring signals are seriously interfered; according to the design, the horizontal line of the probe water outlet is lower than the horizontal line of the probe water inlet by a certain distance, so that the sand grains moving in the probe in the parabolic manner can be discharged out of the probe water outlet to ensure that the sand grains are incapable of entering the measuring chamber of the instrument, thereby ensuring accuracy and stability of the measuring signals of the instrument.

The invention discloses a two-stage type powdered coal destructive distillation system which comprises a horizontally-arranged drying tube. An inlet and outlet of the drying tube are communicated with a feeding inlet and a coal discharging bin respectively. An outlet of the bottom of the coal discharging bin is connected with an inlet of a destructive distillation tube, the destructive distillation tube is horizontally arranged and arranged below the drying tube, and an outlet of the destructive distillation tube is connected with a semi-coke output bin with a bottom opening; a heating pipeline is arranged outside the drying tube, the heating pipeline surrounds the drying tube, and the outer wall of the drying tube is the inner wall of the heating pipeline; the two ends of the heating pipeline are provided with a gas inlet and a gas outlet respectively, a heat storage type radiation tube is fixedly arranged on the outer side of the destructive distillation tube, and hot raw coke oven gas enters the heating pipeline from the gas inlet, passes through the heating pipeline and enters the heat storage type radiation tube from the gas outlet. Due to the two-section type design, a heating channel is arranged outside the drying tube, so that the drying tube is heated, a heat source of the heating channel is hot raw coke oven gas, and energy is saved.

The invention provides a shield spiral conveyor and a shield tunneling machine. The shield spiral conveyor comprises a rotary cylinder discharging and cutting muck and a cylinder driving assembly used for driving the rotary cylinder to rotate. The cylinder driving assembly comprises a transmission bearing, an output gear and a driving part driving the output gear to rotate. The rotary cylinder is sleeved with the transmission bearing. The outer circle of the transmission bearing is fixedly connected with the rotary cylinder. The output gear is in engaged transmission with the outer circle of the transmission bearing. The shield tunneling machine comprises a shield and the shield spiral conveyor which is arranged in the shield. The shield spiral conveyor and the shield tunneling machine have the advantages of being good in stability, high in reliability, small in occupied space and the like.

The invention discloses a device for crushing grains, comprising a powder-removing drum, a feeding funnel, a feeding drum, a fan, an air suction pipe, a pump, a dust-absorbing cloth bag, a grinder and a bracket; The top of the powder drum is connected, and the feeding funnel is connected with the top of the feeding drum; the exhaust pipe is connected with the top of the powder removal drum, the inlet end of the pump is connected with the exhaust pipe, and the outlet end of the pump is connected with the vacuum bag; the bracket It is arranged in the powder removal cylinder, the bracket is connected with the inner surface of the powder removal cylinder through the ring plate, the fan is fixed in the bracket, and there is a gap between the bottom of the bracket and the bottom of the powder removal cylinder, and a plurality of through holes are provided on the ring plate. The inlet end of the grinder is communicated with the bottom of the powder removing cylinder; it also includes a plurality of magnet columns horizontally fixed in the powder removing cylinder. The invention realizes dust removal and pulverization of grains in one device, improves processing efficiency and reduces processing cost. The present invention can also remove metal particles from grains.

The invention discloses a hole milling device and method for a corrugated copper pipe outer conductor coupling type leaky coaxial cable, and the device comprises a milling cutter, a groove milling die, and a lubricating oil atomizer. The groove milling die comprises a die body, and a through hole is formed in the axis direction of the die body. A milling cutter groove hole is formed in the upper section of the die body, an oil mist channel is further formed in the die body, an inlet of the oil mist channel is communicated with an air outlet of the lubricating oil atomizer, and an outlet of the oil mist channel is formed in one side of the milling cutter groove hole. According to the invention, the FRL air source is adopted to process the atomized lubricator, so that the liquid cutting fluid is atomized, and the atomized cutting fluid is blown to the cutting edge of the cutter to lubricate and cool by connecting the cable groove milling die with the oil mist hole channel through the pipeline, so that the groove opening of the cable outer conductor groove milling is smooth and burr-free, the electrical index of the cable is not influenced, and the service life of the cable is prolonged. The product quality is improved.

The invention relates to the technical field of electric cabinets, particularly to an air channel type heat radiation electric cabinet. The air channel type heat radiation electric cabinet includes a cabinet body, both sides of the cabinet body are provided with air channels, tail ends of the air channels are provided with air inlets, air outlets are arranged under the cabinet body, and sand-proof nets are arranged at the air inlets. When the air channel type heat radiation electric cabinet works, external cold air enters a box body through the air channels and electronic elements inside the box body are cooled; and since the sand-proof nets are installed, sand and dust can be prevented from entering the box body, thereby improving a sand prevention effect and achieving a good using effect.

The invention provides a high-purity quartz production device. The high-purity quartz production device comprises a reacting furnace and a tower body, wherein the reacting furnace comprises a hearth, a heat insulation layer, a heat preserving layer and a metallic furnace cover which are arranged from inside to outside; the hearth is provided with at least one hearth air outlet which passes through the heat insulation layer, the heat preserving layer and a furnace seat; furnace top air inlets and furnace top air outlets are formed in the furnace top; the furnace top air outlets are not lower than the furnace top air inlets and are positioned on two sides of the furnace top; the hearth air outlet and the furnace top air outlet are correspondingly connected to a waste gas treating device; the tower body is arranged at the bottom part of the hearth and comprises a tower body bracket which is vertically arranged on the ground, a guide rail which is arranged on one side of the tower body bracket, and a base which is arranged on the guide rail; the base can be driven by a motor to move up and down along the guide rail; a product holder is arranged on the base and can move and rotate on the base through the motor. With the adoption of the production device, the external pollution and the safety treatment of waste gas in the production can be effectively avoided and achieved.

The invention relates to the field of coal-based methanol-to-olefin in the novel coal chemical industry, and discloses a separation system for low-energy-consumption methanol-to-olefin reaction gas, which is characterized in that all devices are connected through pipelines, a first section, a second section and a third section of a reaction gas compressor are connected through pipelines, a second-section outlet of the reaction gas compressor is connected with a water scrubber, and the side oil separation edge of the water scrubber is connected with a condensate pre-separation tower. The invention also discloses a separation process. According to the invention, heavy components are discharged from a tower kettle, dehydrated and separated, and then directly sent to a C4 device for treatment,so that invalid circulation of the heavy components in the system is avoided, the process load of the separation system is reduced under the same methanol-to-olefin reaction gas treatment capacity, the process energy consumption and the main equipment size are reduced, and the nitrogen consumption in the regeneration process of the dryer is reduced. A cooler and a group of oil-water separators are additionally arranged on a tower kettle heavy component line of the condensate pre-separation tower, so that the oil-water separation is more thorough, and the process energy consumption is lower.