39results about How to "Extend continuous operation time" patented technology

The invention provides a micro cyclone separator with a double-side air inlet function and a high-pressure separation device adopting the separator. The micro cyclone separator with the double-side air inlet function comprises an inner pipe and an outer pipe. An air outlet of the cyclone separator is formed in the top of the inner pipe. Part of the lower portion of the inner pipe enters the upper portion of the outer pipe. The top of the outer pipe is connected with the outer wall of the inner pipe in a sealing mode. The micro cyclone separator is characterized in that two air inlets communicating with the interior of the outer pipe are formed in the top of the outer wall of the outer pipe, and the two air inlets extend in the tangential direction of the outer wall of the outer pipe correspondingly and are distributed in a central symmetry mode. By means of the double-side air inlets which are distributed in the tangential direction in the central symmetry mode, the air inlet area is effectively increased, the air inlet efficiency is improved, the medium treating capacity is improved, the pressure drop is reduced, and the separation efficiency is improved.

The invention relates to a grinding device and a combination method used for grinding a grinding piece. The grinding device comprises a fixing disk, at least one baffle, a positive pressure air cushion and a gasket. The fixing disk has a compression face and a load bearing face. The grinding gasket is fixed on the load bearing face. The baffle is arranged on the lateral side of the edge of the fixing disk. The positive pressure air cushion is arranged on the compression face and on the upper part of the baffle block, in order to press the compression face and drive the fixing disk and grinding gasket moving to the direction of the grinding piece. The gasket is arranged between the compression face and the positive pressure air cushion, and extends and covers to the baffle block part. The gasket is used for separating part of the positive pressure air cushion that extends outside the edge of the fixing disk, and therefore the situation that the edge of the fixing disk embedding to the positive pressure air cushion is avoided, and the damage probability of the positive pressure air cushion is reduced.

The invention relates to a preparation method of high-quality olive kernel oil. The preparation method comprises the following steps: setting the drying temperature of a heat pump to be 55-65 DEG C, setting the drying time of the heat pump to be 20-30 hours, and setting drying moisture to be 5-7%; crushing olive kernels into 20-40-mesh particles by using a high-speed crusher; carrying out screening by using a 40-50-mesh vibrating screen, and taking lower-portion fine-particle olive kernels; performing ultrasonic-assisted treatment on the fine-particle olive kernels through ultrasonic and microwave heating combined auxiliary equipment, and performing microwave heating after ultrasonic treatment is stopped; discharging the olive kernels into a barrel of a presser, and carrying out pulse direct pressure pressing with pressing pressure set to be 100 t to 150 t and pressing time set to be 0.5 h to 1 h; pumping squeezed olive kernel oil into a storage tank, then pumping the oil into a filtering device through a high-pressure pump, and carrying out filtering; and taking a sample, and determining the oxidation resistance and the olive polyphenol content of the olive kernel oil.

The invention discloses an enhanced nitrification process based on coupled demolding, and belongs to the technical field of sewage treatment. In the sewage nitrification process, under a condition ofkeeping a certain content of dissolved oxygen in a system, extrusion treatments are carried out on an elastic filler so as to generate different deformation degrees, in each extrusion treatment, deepextrusion and shallow extrusion are coupled; deep extrusion is carried out when the system load decreases, the effluent quality is close to an index value, or the system resistance exceeds a designedinflow water distribution pressure; and shallow extrusion is carried out when the system load is stable. Through the combination of deep extrusion and shallow extrusion, on one hand, demolding and redistribution of a bio-membrane filler can be realized, the mass transfer efficiency is improved, on the other hand, dissolved oxygen inside and outside the bio-membrane filler can be distributed more uniformly, through the synergistic effect of deep extrusion and shallow extrusion, the nitrification reaction is enhanced, the sewage treatment efficiency is improved, and the effluent quality is recovered.

The invention discloses a sealing device for a spindle of a disc mill used as density fiberboard production equipment. According to the invention, an oil seal chamber, a flushing ring, an embedded part and a sealing ring are simultaneously mounted outside a shaft sleeve on the driving spindle in a matched manner through a sealing seat; a packing is arranged in the oil seal chamber; the flushing ring is connected with a compressed air source through an air inlet; and the front end of the sealing ring is inserted into a limiting groove in the back of a movable millstone. Slurry and steam in a pulping area of the disc mill are sealed through a plurality of groups of seal loops so as to prevent a sealing medium from leakage; compressed air is introduced through the air inlet in the system operation process; so leakage of the sealing medium in the operation process and damage of pulp to the shaft sleeve and the seal loop group in the oil seal chamber in the pulp grinding process are reduced, the leakage of the sealing medium can be prevented, and abrasion to a sealing assembly and the spindle is reduced. The sealing device has the advantages of good sealing effect, reliable performance,simple structure, convenient operation, small maintenance workload, and low cost.

The invention discloses an alloy steel formula for a bearing. The alloy steel formula comprises the following components in percentage by weight: 0.37-0.45 percent of carbon, 0.24-0.29 percent of molybdenum, 0.33-0.39 percent of zirconium, 0.17-0.37 percent of silicon, 0.50-0.80 percent of manganese, less than 0.4 percent of sulfur, less than 0.05 percent of phosphorus, less than or equal to 0.25 percent of chromium, less than 0.25 percent of nickel, less than 0.25 percent of copper, less than 0.1 percent of other inevitable impurities and the balance of iron. The alloy steel has high strength and wear resistance, high cold deformation shaping and high surface abrasion resistance, the overall quality of the bearing product is improved, and the service life is prolonged, so that the continuous operating time of equipment is effectively improved, the maintenance period of the equipment is prolonged, and the use cost of the equipment is saved.

The invention discloses a corrosion resistance testing system for a wind power cooler core. The testing system comprises a testing device and a control system. The testing device includes a cooler core body, a pressurizing device, a monitoring device, a corrosive gas generating device, a temperature and humidity generator and a sunlight ultraviolet simulator. The corrosive gas generating device, the temperature and humidity generator and the sunlight ultraviolet simulator are connected with the control system through circuits. The control system includes a signal converter, a PLC controller, ahuman-computer interface and a frequency conversion control device; the signal converter is connected with the PLC through a circuit; and the PLC controller is connected with the human-computer interface and the frequency conversion control device through circuits. Therefore, the corrosion-resistant performances of various cooler cores in different environments can be efficiently and quickly tested; and the medium leakage and replacement and shutdown losses of the fan after corrosion can be reduced and the time of continuous operation time of the fan is greatly prolonged.

A reverse feed high-aromatic-hydrocarbon hydro-upgrading method includes the steps that high-aromatic-hydrocarbon BF such as low-temperature coal tar serves as quenching oil for recovering reaction heat to make direct contact with high-temperature gas-phase-contained material flow R10PVX based on first hydrogenation reaction outflow matter R10P in the high-pressure separation process, at least one time of contact is completed so that part of light components in the raw material hydrocarbon BF can be gasified and separated into gas S1V and liquid material flow S1L possibly containing solid, the material flow S1L or material flow S1LPX obtained after high-carbon-residue components are removed from the material flow S1L enters the first hydrogenation reaction process R10 to be subjected to hydrogenation thermal cracking reaction to be converted into R10P, R10P can enter the previous separation step BS first to be separated into gas BSV and liquid material flow BSL possibly containing solid, at least part of the material flow BSL can return to the step R10 so that circulation conversion and catalyst circulation can be achieved, and the material flow containing solid in the step R10 or the step BS is used for discharging waste catalysts.

The invention belongs to the field of organic matter refined titanium tetrachloride, in particular to a compound organic matter for a vanadium slag reduction crude titanium tetrachloride vanadium removal process. The compound organic matter is prepared from mineral oil, unsaturated fatty acid, silicate and sulfonate in a mass ratio of (40 to 55) to (35 to 50) to (2 to 8) to (2 to 8), wherein the mineral oil is industrial white oil; the industrial white oil is industrial-grade 26# white oil; the unsaturated fatty acid is linoleic acid; the silicate is aluminum silicate; the sulfonate is sodiumalpha-olefin sulfonate. The compound organic matter has the advantages of high vanadium removing efficiency, high adsorption capacity, and capability of ensuring stable vanadium removing effect on thepremise of the reduction of vanadium slag.

The tractor includes the main body of diesel engine. The oil box or the water tank or their combination, including the upper wall and the perisporium, is installed on the body. The cylinder cover is installed on the one end of the body. The air cleaner and the muffler are installed on the cylinder cover. There is an opening and the cover on the other end of the body. The flywheel is on one side of the body, and the cover of the gearbox in on the other side. The length and the volume of the oil box or the water tank or their combination can be increased under certain length of the entire diesel engine. The lighting blind zone appeared on the front and below part of the tractor can be removed so as to be favorable to field operation.