37results about How to "Small block" patented technology

A three-dimensional (3D) high density memory array includes multiple layers of segmented bit lines (i.e., sense lines) with segment switch devices within the memory array that connect the segments to global bit lines. The segment switch devices reside on one or more layers of the integrated circuit, preferably residing on each bit line layer. The global bit lines reside preferably on one layer below the memory array, but may reside on more than one layer. The bit line segments preferably share vertical connections to an associated global bit line. In certain EEPROM embodiments, the array includes multiple layers of segmented bit lines with segment connection switches on multiple layers and shared vertical connections to a global bit line layer. Such memory arrays may be realized with much less write-disturb effects for half selected memory cells, and may be realized with a much smaller block of cells to be erased.

The present invention relates to a method for comprehensive treatment of building garbage. The method comprises: a, disinfecting building garbage to be treated with an agent; b, loading the building garbage obtained in the step a into a material hopper, transporting to a sorting platform, and sorting out debris; c, feeding the sorted building garbage into a jaw crusher through a plate type material feeder, and carrying out primary crushing; d, carrying out magnetic separation on the building garbage obtained in the step c with a magnetic separation machine, feeding into the material hopper ofan impact crusher, and carrying out final crushing with the impact crusher; and e, carrying out screening and peeling on the building garbage obtained in the step d by using a screening machine so asto obtain the sand and stone aggregate in concrete, feeding into a cleaning separation machine, carrying out cleaning separation, feeding into a coarse aggregate bin, and separating to obtain fine powder, wherein the fine aggregate separated by the cleaning separation is used as the raw material for dry powder mortar or pre-mixed mortar or concrete three-hole brick. According to the present invention, with the method, the building garbage resources can be subjected to comprehensive utilization, such that the building garbage can achieve ordered management, resource utilization and harmless treatment, and the purposes of land saving and secondary pollution reducing can be achieved.

The invention discloses a pretreatment method for an ore rock. The method includes: forming a plurality of cracking holes in the ore rock; forming guiding grooves on the inner walls of the cracking holes, wherein the guiding grooves are circumferentially disposed along the inner walls of the cracking holes; and fracturing the cracking holes in order to cause the ore rock to produce directional fractures. By forming the cracking holes in the ore rock, forming the guiding grooves on the inner walls of the cracking holes, and injecting a high-pressure fracturing fluid to cause the ore rock to produce directional hydraulic fractures under the action of the guiding grooves, the development degree of the fractures inside the rock mass of the ore rock can be increased, and the problems of poor collapsibility of the ore rock and large size of the caved ore rock when a natural caving mining method is applied to medium hard rock, hard rock, highly-hard rock and other high-hardness metal mines can be solved.

The invention discloses a rock roadway deep-hole multi-wedge straight-hole internal subsection micro-difference cutting blasting method. A multi-wedge straight-hole inter-subsection micro-difference blasting technology is adopted to realize progressive enlargement of a cutting cavity and progressive deepening of the cutting cavity, a deep-hole column-shaped charge subsection micro-difference blasting technology is adopted to solve the belly phenomenon at the bottom of the cutting cavity, and the deep-hole cutting blasting method can realize the effects that a large cutting cavity and a cuttingcavity 3.0 m deep can be obtained, the percentage of large gangue dumped by cutting is small and the throwing distance of waste rock is reduced to 25-30 m. Sequential initiating is performed according to a primary oblique hole + a six-direction energy-gathering straight hole I section detonator, a secondary oblique hole first section + a central straight hole hollow hole II section detonator, a secondary oblique hole second section + a central straight hole bottom charging section + a tertiary oblique hole III section detonator to form a final cutting cavity, then auxiliary holes, caving holes and bottom holes are initiated by adopting a IV section detonator, and peripheral holes are initiated by adopting a V section detonator to complete full-section blasting; and the large cutting cavity can be provided, the free surface is enlarged, and the blasting efficiency is improved.

The invention discloses a method for reducing mine loss dilution through differentiation charge structure control blasting. Different explosive unit consumptions are achieved by changing a blast hole charge structure, the lumpiness of ores obtained after blasting is obviously smaller than that of dead rock, the mutual covering and mixing degree of the ores and the rock is decreased, identifying and sorting are convenient, and mine loss dilution of the ores is reduced. The method comprises the specific steps that a blasting area is delimited; the boundary between an ore body and dunn basses is determined; construction blast holes are designed; explosives are arranged, wherein the ore body segment of the charge structure is designed to be a continuous charge segment, and the dunn bass segment of the charge structure is designed to be a segmented charge segment; detonating is conducted in the holes through detonating cords; when shovel mucking operation is conducted, ore and rock split charging is conducted by referring to the blasting lumpiness.

The invention provides a roadway blasting structure and a blasting method, and relates to the technical field of roadway construction. The roadway blasting structure comprises a plurality of hole groups which comprise a first hole group consisting of a slotting central hole, a second hole group consisting of a plurality of slotting holes, a third hole group consisting of a plurality of blasting buffer holes, a fourth hole group consisting of a plurality of auxiliary holes and a fifth hole group consisting of a plurality of peripheral holes; the first hole group, the second hole group, the third hole group, the fourth hole group and the fifth hole group are sequentially arranged from inside to outside, and the distance between every two adjacent hole groups is gradually increased from inside to outside, so that the overall hole position arrangement of a section of a roadway is optimized, and a blasting space is more reasonable, and; and the blasting buffer holes are formed between the slotting holes and the auxiliary holes; and through the extrusion blasting effect of the blasting buffer holes, the blasting compensation space of the auxiliary holes is increased, so that secondary blasting is generated, a blasting free surface space of a middle area is increased, miss-fire blasting is prevented, and safety is guaranteed.

A system to prevent fouling in rigging is provided that includes a first plate configured to be received on a first side of a thimble for a cable end, and a second plate configured to be received on a second side of the thimble. The first plate and second plate are configured to enable the thimble to receive a ring of a shackle assembly, but to block at least one end of the shackle assembly from entering an eye of the thimble while the first and second plates are on the first and second sides of the thimble.

The invention discloses a layer-by-layer extrusion and smooth blasting mining method for an underground mine. The method includes the steps of: arranging a hanging wall air return way and a footwall following-vein transportation way along the ore body trend. The footwall following-vein transportation way is parallel to the ore body trend, and an orepass is disposed on the other side. Transverse drifts perpendicular to the ore body trend are disposed at both ends of an ore block. The length of stope is 40-100m, the width is the ore body thickness 5-20m and the height is 40-60m. The stope miningadopts a bottom-up layer-by-layer extrusion and smooth blasting way. By means of the layer-by-layer extrusion and smooth blasting technology, extrusion blasting is firstly carried out, then stope roof smooth blasting is carried out, through layer-by-layer extrusion, the lump ore rate is small, and the blasting cost is low. Layer-by-layer smooth blasting reduces disturbance to surrounding rock andmaintains the stability of surrounding rock, the stope roof is relatively flat, and workers are safe during construction in the stope. Layer-by-layer upward full tailing filling is low in filling cost.

The invention provides a rock roadway deep hole multi-wedge parallel cutting accumulative smooth blasting method. According to the method, multi-wedge parallel cutting technology is adopted to achievea large-groove cavity with a groove cavity opening of 3.2-3.4 m and a deep-hole groove cavity with the depth of 3.0m or more, and the tunneling single-circulation footage of a rock roadway is improved; by adopting peripheral T-shaped accumulative blasting technology, the functions that the peripheral blasting is small in diameter, the explosive density is low, two-way full-hole deep cutting is performed along the periphery to the two sides to form a smooth surface, broken stones are cut in the radial direction, and tangential guiding and peripheral damping are generated by hollow holes are realized, and the effects that back break is reduced, the gangue block degree is reduced, the smooth surface forming is good, and the support is stable are achieved; and on the basis of the two kinds ofkey technology, the full-face blasting process and parameters are set, so that the deep hole smooth blasting effect that the expected blasting depth of the rock roadway reaches 3.0m is wholly realized.

The invention relates to blasting demolition method for a reinforced concrete water retaining cofferdam, and belongs to the technical field of blasting engineering. The method includes the steps of 1)arranging, and drilling blastholes of a seepage-proofing pile, a top ring beam, a middle ring beam, a bottom ring beam and an anchor block; 2) charging; 3) arranging a blasting network and detonationmethods; 4) blasting and the like. Various detonation methods are adopted, and blasting demolition can be safely and efficiently conducted on the reinforced concrete water retaining cofferdam; various charging methods are adopted, blasting energy can be effectively utilized, crushing effects are smaller, and lumpiness is smaller; segmentation arrangement of the blastholes is adopted to reduce single-hole dose, blasting vibration, blasting flying stones and water-hammer waves are effectively controlled, and blasting dust is reduced; steps are simple, operation is easy, and the method is suitable for large-area popularization and application.

The invention relates to the technical field of daily supplies, in particular to a mini bladeless fan in a multifunctional usage mode. The mini bladeless fan comprises an upper component, a lower component and a fan structure. The upper component and the lower component are connected in a clamped connection manner. The fan structure is arranged in the upper component and the lower component. The upper component comprises an upper shell. The upper shell is a hemispheric shell. Multiple sets of air inlets are formed in the outer side face of the upper shell. A rope hanging fastener is arranged in the middle of the top of the upper shell. Annularly-arranged air outlets are arranged at the top of the upper shell, and multiple sets of annularly-symmetric air baffles are arranged on the inner wall of the top of the upper shell. The mini bladeless fan is small in size and large in air output quantity, the air inlets and the air outlets are on the same plane, due to the fact that the air outlets surround the upper shell by 180 degrees and the air outlets are on an arc face, the air input state is achieved all around, and therefore the probability that the air outlets of the fan are all blocked by objects is quite small.

The invention discloses a gently-inclined extremely-thin gold vein mining method. A chamber structure is arranged in the mode that a plurality of standard ore blocks are divided in the vein trend; the length of the ore block is 50m, the vertical height of the middle section is 25m, the width is the natural extension inclined length of the middle section with the vertical height of 25m along the vein; the mining preparation cutting method comprises the following steps that a lower-stage haulage roadway is arranged at the end part of the lower middle section of the ore block along the vein trend; an upper-stage haulage roadway is arranged at the end part of the upper middle section of the ore block along the vein trend; and in-vein cutting rises are arranged at intervals of 10m perpendicular to the trend of the vein, and stoping operation is carried out along the in-vein cutting rises; The gently-inclined extremely-thin gold vein mining method has the advantages of being low in mining preparation, cutting and filling engineering cost, high in mechanization degree, high in production efficiency and small in dilution loss, and still has excellent economic benefits even if the mining method is used for mining the gently-inclined extremely-thin gold vein with the inclination angle smaller than 30 degrees and the thickness smaller than 0.8 m, so that mineral resources are fully and effectively utilized.

The present invention relates to the field of an aluminum-base alloy adopting silicon as a subordinate main component, and specifically to a phosphorus-doped aluminum alloy and a manufacture method thereof. The phosphorus-doped aluminum alloy comprises aluminum and silicon, wherein a mass ratio of the silicon to the aluminum is 0.12-0.15. The phosphorus-doped aluminum alloy is characterized in that: the phosphorus-doped aluminum alloy further comprises phosphorus, wherein a mass ratio of the phosphorus to the aluminum is 0.008-0.012%. The manufacture method for the phosphorus-doped aluminum alloy sequentially comprises five steps of material preparing, melting, stirring, degassing and casting, and is characterized in that: the method further comprises: adding phosphor-copper, wherein the phosphor-copper adding step is performed between the stirring step and the degassing step, and the aluminum liquid temperature is controlled to 855-885 DEG C during the phosphor-copper adding process. With the present invention, the shrinking speed is rapid during casting, and the mechanical property of the cast is high.