9results about How to "Good cracking effect" patented technology

This invention discloses a method for increasing shale gas production from multi-stage fracturing shale formations. First, water containing water-absorbing resin is intermittently injected into the shale gas well, impacting the shale layer and creating multiple fractures, forming a primary fracturing process. Next, liquid nitrogen and sodium particles are injected into the shale gas well. The resin, already saturated with water, remains within the fractures. At this point, the liquid nitrogen cools the shale layer below its freezing point, causing the saturated resin to freeze and rapidly expand, forming a secondary fracturing process. Then, as the injected liquid nitrogen continues to vaporize, it further freezes the water and water-absorbing resin adsorbed by the shale, forming a tertiary fracturing process. When the temperature of the shale layer exceeds its freezing point, the expanded ice on the water-absorbing resin melts into water. At this point, the sodium particles react with the water, releasing a large amount of heat, causing the shale layer temperature to rise rapidly, creating a thermal shock to the low-temperature shale layer, forming a quaternary fracturing process. This completes the multi-stage fracturing process of the shale layer, effectively improving the extraction efficiency of shale gas.

The application provides a kind of preparation of red radish protoplast enzymatic hydrolysate and the preparation method and application of red radish protoplast, belong to the technical field of plant cytology.The enzymatic hydrolysate includes:1.0~1.5w / v% cellulase, 0.3~0.5w / v% dissociation enzyme and 0.3~0.5w / v% hemicellulase.The cellulase has the effect of degrading cellulose in plant cell wall, dissociation enzyme is used with cellulase, which is beneficial to separate plant tissue into single cell, and the main effect of hemicellulase is to degrade hemicellulose in plant cell wall.The enzymatic hydrolysate can synergistically promote the effect of red radish tissue cell wall lysis through the comprehensive effect of three enzymes, can better and faster destroy cell wall skeleton, is more conducive to the preparation of red radish protoplast and further maximally release protoplast, is conducive to improving the yield of protoplast, and can also keep the protoplast with high activity.

This invention discloses a method for disrupting the cell walls of structurally heterogeneous microorganisms based on the synergistic vibration of multi-size media and its application. The method includes the following steps: (1) constructing a composite cell-dispersing media system with multi-size characteristics and filling it into a cell-dispersing tube; (2) injecting the microbial sample to be disrupted into the cell-dispersing tube and oscillating it at a linear velocity of 6-7 m / s for 30-90 seconds at 4-25 ℃; (3) after cell disruption, separating the mixed composite cell-dispersing media system and the solution to obtain a cell-dispersed solution containing intracellular products. The beneficial effects of this invention are: through the synergistic effect of multi-scale shear forces, it significantly improves the lysis efficiency of difficult-to-disrupt pathogens such as Mycobacterium tuberculosis, Cryptococcus, and Aspergillus, effectively protects the nucleic acid integrity of RNA viruses, has high cell disruption uniformity, good RNA protection, can be standardized and adapted to automated platforms, and is suitable for the pretreatment of complex clinical samples.

The application relates to the walnut processing technical field and discloses a walnut ultrasonic shell breaking and kernel taking device, which comprises a rack, a walnut conveying mechanism arranged on the rack, a walnut shell breaking mechanism and a material collecting mechanism. The walnut conveying mechanism is used for driving the fallen walnuts to move and is conveyed to the walnut shell breaking mechanism. The walnut shell breaking mechanism drives the walnuts to move and extrudes the walnuts to break the shells through ultrasonic high-frequency vibration. The material collecting mechanism is used for screening and collecting the walnut kernels and the walnut shells after the shells are broken. The walnut conveying mechanism, the walnut shell breaking mechanism and the material collecting mechanism realize the processes of walnut conveying, extrusion shell breaking and recovery. The ultrasonic wave is applied to the walnut shell breaking field. The walnut shells in Yunnan are hard and have small kernel-shell gaps. The high-frequency vibration under the mechanical effect of the ultrasonic wave is suitable for the characteristics of hard and brittle material breaking, assists the walnut shell breaking, and improves the shell breaking rate and the whole kernel rate.

This application discloses a natural gas extraction well pressurization and production enhancement device, belonging to the field of natural gas extraction, comprising: a natural gas pipeline; an electric telescopic rod, the electric telescopic rod being assembled inside the natural gas pipeline; a connecting plate, the connecting plate being assembled at the output end of the electric telescopic rod; an air pump, the air pump being assembled inside the natural gas pipeline; an exhaust pipe, the exhaust pipe being assembled on the side of the air pump; an intake pipe, the intake pipe being assembled on the side of the air pump; and a natural gas extraction pipe, the natural gas extraction pipe being assembled on the top of the air pump. A first sleeve is slidably connected to the side of the natural gas pipeline, and a second sleeve is slidably connected to the inner wall of the first sleeve. By opening the dispersion claw, the coal seam fractures are further expanded, and by starting the air pump, gas can enter the coal seam through the expanded fractures. The returned coal gas is drawn in and discharged through the natural gas extraction pipe, solving the problems of insufficient fracture expansion and low production capacity in traditional pressurized mining.

This invention discloses a method for improving the top coal caving performance and coordinating the control of strong mine pressure in fully mechanized longwall mining faces. The method includes the following steps: determining the treatment stratum, designing the borehole layout, drilling, electrically controlled fracturing, and outputting equipment from the borehole. The electrically controlled fracturing involves installing multiple fracturing devices into at least one fracturing device roller. Each fracturing device roller has an activation chamber. The drilling rig sends the fracturing device roller to a designated position in the borehole. A voltage is then supplied to the activation chamber under the action of a voltage activation device. When the voltage exceeds the rated voltage, the activation chamber operates, activating the fracturing devices. This achieves instantaneous activation of the fracturing devices under controllable voltage conditions. The electrically controlled fracturing method creates a three-dimensional weakened structure in the treatment stratum, disrupting the overall structure of the overlying roof and top coal on the working face, reducing the strength of the rock and coal mass, and integrating the fracturing effect of the top coal itself. This achieves coordinated forced caving of mine pressure and top coal weakening modification.

This invention belongs to the field of biological sample detection technology, specifically relating to a lysis cell. This invention provides a lysis cell designed to solve the problem in existing lysis cells where the liquid and reagent cannot be mixed effectively, resulting in poor lysis performance. A lysis cell includes a first flexible wall and a second flexible wall, forming a sealed lysis chamber between the first and second flexible walls. The lysis cell also includes an inlet and an outlet, both of which communicate with the lysis chamber. By using the first and second flexible walls, this invention ensures that the liquid entering the lysis chamber through the inlet mixes evenly with the pre-stored reagents within the lysis chamber. Furthermore, the liquid has a longer flow path within the lysis chamber, resulting in more uniform mixing of the liquid and reagents, thereby optimizing the lysis effect of the lysis cell.

This invention discloses a microwave plasma CO2 pyrolysis device and method with product recycling and separation, comprising four parts: a microwave plasma power supply unit, a gas supply and reactor unit, a post-processing and circulation unit, and a signal acquisition and control unit. A solid-state power supply generates microwaves via a magnetron, which, through a waveguide, form microwave plasma within the reactor, pyrolyzing CO2 into CO and O2. A contraction-expansion nozzle creates eddies and a more optimized temperature distribution within the microwave reactor, achieving a higher CO2 conversion rate. A constant-temperature chamber and a carbon bed remove O2 from the products to increase the CO concentration. A pressure swing adsorption device separates and collects the CO, and a vacuum pump circulates the unreacted raw material gas, thus achieving complete CO2 pyrolysis. This invention features novel functional integration, enabling highly efficient CO2 pyrolysis and conversion. It can also be extended to other microwave plasma-based gaseous product conversion processes, facilitating industrial application.

The invention discloses a static expansion fracturing device and method for hard rocks on a coal mining working face, and the device is characterized in that a pressing and plugging pipe and a fracturing pipe are distributed at an interval and are inserted into a plugging bag in the height direction in a penetrating manner, and a plurality of liquid outlet holes are formed in the part, in an inner cavity of the plugging bag, of the pressing and plugging pipe; the positioning mechanism is fixedly connected to the outer side of the lower portion of the pressing and plugging pipe and acts synchronously with the plugging bag. The buffering protection unit comprises a damping supporting body and a telescopic liquid injection pipe. The damping supporting body has axial telescopic deformation capacity, the fixed end of the damping supporting body is connected with the lower end of the pressing-plugging pipe, and the telescopic end of the damping supporting body is fixedly connected with a baffle. The upper end of the telescopic liquid injection pipe is connected with the lower end of the fracturing pipe, and the lower end of the telescopic liquid injection pipe is fixedly inserted into the mounting hole in the baffle. The method comprises the following steps: constructing a drill hole and filling the fracturing capsule; a fracturing device is installed, high-pressure gas or high-pressure liquid is injected through a pressing and plugging pipe, and opening of sealing, positioning and protection states is achieved; and high-pressure water is injected through the fracturing pipe for static fracturing operation. The fracturing effect and the fracturing efficiency can be remarkably improved.