8 results about "Black oil" patented technology

The invention discloses a rapid detection and on-site treatment method for ammonia and black oil in fly ash, which comprises the following steps: 1) weighing 200g of fly ash from the batch of fly ash, putting the fly ash into a conical flask, adding 80g-90g of water for stirring, and stirring; (2) after stirring is completed, covering a conical bottle opening with test paper soaked with a 1% phenolphthalein alcohol solution; 3) if the test paper turns red, determining that ammonia with relatively high content exists; 4) standing for 8-10 minutes, and observing whether black oil exists on the surface of the neat paste; 5) after the detection is completed, treating excessive ammonia and black oil in the fly ash; according to the present invention, the ammonia content is rapidly detected by using the test paper impregnated with the 1% phenolphthalein alcohol solution, the black oil is observed by standing, and the concrete stirring and vibrating process is combined so as to achieve the real-time determination and the emergency treatment of the fly ash pollutants, such that the concrete structure quality is improved, and the fly ash field detection method is supplemented.

This utility model discloses a novel electric gear pump device for electric shovel lubrication truck, relating to the technical field of oil filling trucks for mining equipment. It includes a power compartment, a grease compartment, and a hose reel compartment. The power compartment includes a diesel generator set, a grease lubricating oil tank, a black oil lubricating oil tank, an electric gear pump set, an ultrasonic level gauge, a hose reel, a color paperless recorder, an electrical control cabinet, and a fire extinguisher. A ground-based oil replenishment system is installed on the side of the grease compartment. Ultrasonic level gauges are installed on the three oil tanks within the grease compartment to monitor the oil level in real time. These level signals are transmitted to the color paperless recorder installed on the electrical control cabinet panel. When absorbing oil, if the oil level in the tank is lower than the minimum absorbing level, the paperless recorder will issue a low-level alarm, reminding the operator to stop refueling to prevent the oil pump from running dry and being damaged. When replenishing oil in the tank, the paperless recorder will issue a high-level alarm, prompting the operator to stop oil supply to avoid oil overflow.

The application discloses a critical path-based oil-water two-phase seepage model construction method and system and a medium, relates to the oil and gas field development technical field, and combines traditional black oil model simulation technology and critical radius technology based on critical path seepage theory, proposes an oil-water two-phase seepage characteristic oil reservoir simulation method considering microscale critical paths on the basis of ensuring the scale of the oil reservoir model, restores micro characteristics such as internal pore throat structures of real reservoir rocks to the maximum extent by using the critical radius, and studies factors such as the influence of the dominant channel (critical path) of oil-water two-phase fluid seepage in the pore throat and displacement efficiency on the phenomenon from the micro perspective, so that higher-precision oil reservoir simulation analysis results are obtained; the scheme directly calculates the flow and pressure of each component of oil and water based on the critical radius and the critical path length, does not need to input a static oil-water relative permeability curve in the simulation process, and can more directly reflect the stress state and change process of each part of the oil reservoir.

The dustproof drill rod of the hydraulic breaking hammer comprises a drill rod body, a dustproof cover and an outer sleeve, a front protruding block and a rear protruding block are arranged in the middle of the drill rod body, a middle groove is formed between the front protruding block and the rear protruding block, a through hole, a clamping groove and an inner expanding groove are sequentially formed in the dustproof cover from left to right, the drill rod body penetrates through the through hole of the dustproof cover, and the outer sleeve is sleeved with the clamping groove. The through hole is matched with the middle groove, the rear protruding block is matched with the clamping groove, the outer sleeve is inserted into the drill rod, the front end of the outer sleeve is arranged in the inner expanding groove, and a certain distance is formed between the front end of the outer sleeve and the rear protruding block. The dust-proof device can completely cover the outer sleeve, is very remarkable in dust-proof effect, can prevent dust from directly impacting the outer sleeve, reduces dust entering the front cylinder body, reduces the probability of black oil, avoids cylinder scoring, and prolongs the service life of hydraulic oil and the hydraulic breaking hammer; consumption of the outer sleeve caused by friction between the outer sleeve and the rear protruding block and the dustproof cover can be avoided, and therefore the service life of the outer sleeve is prolonged.

The invention relates to the technical field of keyboard modules, in particular to a shading film structure and white oil printing process and equipment thereof.The shading film structure comprises a PET film serving as a printing carrier, a window area and a non-window area are arranged on the surface of the PET film, a first white oil layer is formed on the window area through printing treatment, and a second white oil layer is formed on the non-window area through printing treatment; screen dots are arranged at the position, located on the outer side area of the first white oil layer, of the window area, a black oil layer is formed on the non-window area through printing treatment, and a second white oil layer is formed at the position, corresponding to the first white oil layer and the black oil layer, of the back face of the PET film through printing treatment. According to the shading film structure, the white oil printing process and the white oil printing equipment, the problems that light rays ineffectively overflow in the non-window area transmission process of the PET film and the brightness is reduced due to the influence of light absorption of the surrounding dark environment can be avoided, the light rays are guided to the window area to the utmost extent, the brightness of the window area is improved, the light emitting brightness of a keyboard is further improved, and the service life of the keyboard is prolonged. And the key backlight is enabled to be clearer and brighter.

The utility model provides a kind of magnetic yoke special workbench for flaw detection, belong to magnetic yoke flaw detection technical field. Including workbench main part, the detection area for placing workpiece is equipped on workbench main part, mounting bracket is equipped on workbench main part, illuminating lamp is equipped on the detection area top on mounting bracket, shielding cover is equipped on the detection area outside on mounting bracket, and the side of mounting bracket is left with operating mouth, workbench main part is equipped with still for recycling black oil magnetic suspension recovery mechanism. It has the effect of improving contrast enhancer and the convenience of black oil magnetic suspension cleaning.

The application relates to the technical field of metal plate shearing processing, and particularly discloses a hot-dip galvanizing high-strength steel longitudinal cutting and slitting black oil mark eliminating device, which comprises a tension table mechanism and a felt pad. The tension table mechanism comprises an upper pressing table and a lower pressing table which are vertically and separately installed on a tension table support frame. A hydraulic drive mechanism is vertically installed at the top end of the tension table support frame, and the upper pressing table slides along the tension table support frame in the vertical direction. The felt pad comprises upper felt and lower felt which are respectively installed on the adjacent surfaces of the upper pressing table and the lower pressing table. Two groups of PVC thin plates are arranged on the side of the upper felt and the lower felt close to the finished product narrow steel roll. A hot-dip galvanizing steel roll mother roll is cut by the longitudinal cutting and slitting machine to form the finished product narrow steel roll, and the finished product narrow steel roll is wound by the winding machine. The black oil mark defect in the longitudinal cutting and slitting process is eliminated from the source, the winding tension is stable, and the device can be directly matched with most existing longitudinal cutting and slitting production lines.

The invention discloses a pore scale numerical simulation method, system and equipment based on rock deformation and a storage medium, and belongs to the technical field of oil reservoir numerical simulation methods. According to the method, on the basis of a porous medium skeleton network reconstruction model, a phase permeability curve and a capillary force curve of a porous medium reservoir under different deformation degrees are calculated through a weak fluid-solid coupling method and in combination with a steady-state method; fitting the characterization model of the relative permeability curve and the capillary force curve of the porous medium considering the pore deformation factor with numerical simulation software based on a black oil model to obtain a pore scale numerical model based on rock medium deformation; and predicting the influence of rock pore scale deformation on fluid seepage by adopting the pore scale numerical model. The simulation method provided by the invention solves the technical problem that the influence of pore-scale rock structure deformation on the fluid seepage law in the reservoir is difficult to accurately describe in the prior art, and provides theoretical guidance for efficient development of oil and gas.