21 results about "Stone particle" patented technology

The utility model relates to cofferdam device technical field, especially water conservancy construction cofferdam device, including bottom board, the bottom board is hollow annular structure, the top of bottom board is fixed with peripheral fender and inner fender respectively by welding, the peripheral fender is surrounded in the outside of inner fender, fill several inner lining rods between the peripheral fender and inner fender, the surface of inner lining rod is fixed with the inner wall surface of peripheral fender and the surface of inner fender respectively by welding, the inner lining rod is arranged along the equidistance distribution of inner ring wall annular of peripheral fender, still inlaying the reinforcing ring that has been penetrated between several inner lining rods. The scheme will fill the inner lining rod and be fixed with the peripheral fender and inner fender by welding, form the compact combination type structure, this design not only effectively disperses the impact force of water flow, still can fill the sandstone particle through the gap between the inner and outer fender, greatly increase overall weight and compactness, the filling of sandstone not only strengthens the deformation resistance of cofferdam, makes its installation on riverbed more stable.

The present application relates to the technical field of geological exploration, and discloses a rock mass compressive strength testing device, which comprises a rack, a working chamber is formed in the rack, a hydraulic cylinder is installed on the top of the rack, the output end of the hydraulic cylinder is located in the working chamber, and a pressing head is installed on the output end of the hydraulic cylinder; a placing table is installed on the bottom of the rack and used for placing a sample; and an automatic placing assembly is installed on the placing table and used for automatically moving the sample to the center of the top surface of the placing table. The present application can automatically adjust the position of the sample, quickly place the sample on the detection position on the placing table, and is safe and reliable to use, and the present application can conveniently clean the surface of the placing table, avoid the surface of the placing table from being covered with rock particles, and is more convenient to use.

The present application relates to the technical field of stone crushing, in particular to a coal mine crusher, which comprises a collecting frame, a screening unit is placed on the upper part of the collecting frame, the screening unit is used for screening the crushed ore, and the ore meeting the specifications falls and is collected, the present application can meet the two different crushing modes of rotary crushing and pressing crushing of the ore through the setting of the crushing unit, and the rotary crushing and pressing crushing are combined with each other, the ore can be crushed more thoroughly, the ore is also subjected to sinking crushing in the concave box, dust generated by the crushing of the ore can be effectively inhibited, the flying stone particles during crushing can be blocked, the setting of the placing unit can also drive the ore and the crushing unit to generate a reverse impact force, and the crushing efficiency and quality of the ore are effectively improved.

This invention discloses a sintered NdFeB magnet and its bluing process, relating to the field of magnet corrosion protection technology. The bluing process includes the following steps: dry polishing of the NdFeB black sheet using a composite polishing medium to remove surface oil, dust, and a dense oxide layer, exposing a fresh active substrate and forming a rough interface; the composite polishing medium consists of stone particles, shell particles, and sawdust; and bluing the polished NdFeB black sheet to induce an oxidation reaction on the substrate surface, generating a blue Fe3O4 protective film. This bluing process achieves a magnetic loss repair rate of up to 1.19%, while simultaneously achieving zero chemical emissions, zero wastewater generation, and replacing expensive controlled atmospheres with zero-cost air. It also fundamentally solves the rigid constraints of process connections caused by wet material overprinting, providing a surface protection solution for NdFeB magnets that combines environmental friendliness, high corrosion resistance, magnetic property repair capabilities, and low cost.

The utility model relates to detection device field discloses a bridge crack detection device, including detection equipment, the front of detection equipment is provided with detection head, the front of detection head is provided with cleaning protection mechanism, the cleaning protection mechanism includes the shell, the upper, lower, left, right side of shell all are set up with the auxiliary mouth, the middle part of shell is provided with the cleaning spare, the cleaning spare includes pull rod, pull rod and shell penetration and sliding connection, the middle part of shell is set up with the cavity, the front end fixedly connected with piston plate of pull rod, the piston plate and cavity piston connect, the middle part of shell penetration and fixedly connected with the air pipe. In the utility model, through setting up the mutual cooperation between shell and detection head and cleaning spare etc. component, makes the device can blow off sandstone particle etc. that adheres to the surface of detection head, to better carry out the cleaning to detection head to prevent the scratch of detection head, more practical.

An instrument for endoscopic applications, including urology. The instrument may include both irrigation and aspiration channels, effective attraction and suction of tissue and body stone fragments, enhanced viewing clarity of the operational area, illumination fibers with steering function for flexible version of the scopes. In some embodiments, a distal head is configured to locate a mouth of the working channel within a viewing angle of the visualization system. In some embodiments, a transparent cap is disposed at the distal end of endoscope to provide an enhanced view of the operational area. Irrigation and aspiration channels may be arranged so that consistent water flow will attract tissue and body stone particles and remove heated liquid. Illumination fibers may be utilized as pull linkages or push-pull linkages for deflection and steering of flexible embodiments of the scope.

The utility model discloses a kind of soil and stone material particle grading intelligent detection devices for loading process, belong to particle grading detection technical field, including conveyer belt, blanking hopper, material arrangement module, detection module, speed sensor, intelligent unit and dust removal component;Material arrangement module includes two guide inclined plate of symmetrical arrangement, vibrator, height sensor and height adjusting unit;Height adjusting unit includes baffle, laser ranging sensor being arranged below baffle, threaded rod and two rotary motors;Detection module includes two fixed frame, 2D detection unit and 3D detection unit;2D detection unit includes industrial camera and the light supplementing light source being arranged around industrial camera;3D detection unit includes 3D scanning camera and TOF range finder;The soil and stone material particle grading intelligent detection device for loading process in the utility model is adopted, solves the problem that current particle grading detection real-time is poor, accuracy is low.

This invention relates to a method for restoring the original appearance of a pebble-dash exterior cladding. The method involves acquiring an image of the pebble-dash exterior cladding to be repaired and identifying the area to be repaired. Key stylistic features are determined based on the pebble-dash exterior cladding, and a stylistic layout reference image is generated. A small sample is made based on the stylistic layout reference image to determine the closest stone particle ratio. A physical repair template is then made based on the determined stone particle ratio, and the overall appearance of the repaired pebble-dash exterior cladding is checked for uniformity. After the template is approved, the repair work can proceed. After restoration using this method, because the pebble-dash surface material has undergone template creation and image comparison, color and texture differences between the old and new areas can be effectively avoided, preserving the original material feel of the building and adhering to the principle of "restoring the old as it was."

The application discloses an ecological slope protection structure and relates to the technical field of ecological slope protection.The ecological slope protection structure comprises a spraying mechanism, a stone cleaning tank and a drainage ditch.The spraying mechanism comprises a water storage ditch, a water pump, a water storage tank and a spraying pipe.The water pump is arranged in the stone cleaning tank, the stone cleaning tank is arranged in the water storage ditch, the water pump is in communication with the water storage tank, the water storage tank is in communication with the spraying pipe.The stone cleaning tank comprises an outer tank body, an inner tank body, a first separation component, a second separation component and a main filter screen.The inner tank body penetrates through the outer tank body at the top to form a water inlet, and the first separation component, the second separation component and the main filter screen are arranged in the inner tank body from top to bottom.The sand and stones in the water flowing into the stone cleaning tank are cleaned, which can prevent the sand and stones from being sucked into the water pump to damage the structure of the water pump and prevent the subsequent sand and stones from being blocked in the spraying pipe.The multi-layer structure of the inner tank body can screen out large stone particles and disperse the stone particles.

The application discloses a fault broken zone rock mass microseismic sensor laying device and belongs to the technical field of tunnel engineering monitoring. The device comprises a grouting pipe, an end cover, a rotating plate, a suspender and a digging device. The side wall of the grouting pipe is provided with a mounting hole, the end cover is rotationally connected with the rotating plate, the upper end of the suspender is slidably arranged through the rotating plate, and the lower end of the suspender is connected with the digging device. The grouting pipe is inserted into a grouting hole, the rotating plate drives the suspender and the digging device to reciprocating swing, the digging device is extended from the mounting hole and digs an installation groove in the rock mass, meanwhile, the original rock broken stone particles cut down are collected in the box, then the microseismic sensor is pushed into the installation groove, so that the sensor is wrapped by the original rock broken stone particles. The application does not need to manually groove in the deep and long grouting hole, and is convenient to operate. The sensor is not wrapped by the high-strength grouting consolidation body, the attenuation of elastic waves caused by wave impedance difference is avoided, and the accuracy and reliability of vibration monitoring are significantly improved.

The utility model provides high -efficient mine dust processor, including equipment main part, air inlet pipe, air outlet pipe, the equipment main part is equipped with the baffle in, the baffle top is the upper cavity, below is the lower cavity, air inlet pipe links together with the upper cavity, air outlet pipe links together with the lower cavity, and the equipment main part back is equipped with the granule box, the granule box is the collection cavity, be equipped with the collection box in the collection box body, just the collection cavity links together with the upper cavity, the upper cavity is equipped with the collection board in, and the collection board end leads to the collection cavity, and the both sides of collection board symmetry are equipped with the support, and the support is equipped with the bolt and equipment main part inner wall link, be equipped with a plurality of screen holes on the collection board, be equipped with the screen cloth in the screen hole, and the impurity ore powder such as the stone particle that has not been treated first through the air inlet pipe enters the upper cavity, and the collection board screen hole is primarily filtered, and the larger stone particle dust is intercepted, and with the collection board enters the collection cavity in the collection box, and the collection board prevents the filter bag to block up, improves the filtering efficiency.

This invention provides a method for preparing titanium carbide-coated diamond particles, belonging to the field of diamond-reinforced metal matrix composites. The method includes the following steps: depositing a titanium film on the surface of diamond particles using a high-purity titanium target via vibration-assisted magnetron sputtering; placing the titanium-coated diamond particles in a small crucible, and laying zirconium particles flat at the bottom of a large crucible; placing the small crucible inside the large crucible; and placing the resulting nested crucibles into a vacuum heat treatment furnace; evacuating the heat treatment furnace, introducing an argon-hydrogen mixture, and heating for heat treatment, with the argon-hydrogen mixture flowing continuously throughout the entire heat treatment process. This invention employs a synergistic strategy of "zirconium particle oxygen absorption - argon-hydrogen gas reduction," combined with a high-temperature in-situ carbide method to prepare titanium carbide-coated diamond particles. The oxygen content of the prepared titanium carbide film is as low as 8 at.%, which is 82% lower than that of uncoated zirconium particles. It can be directly integrated into existing composite material production lines and is suitable for batch processing of diamond particles.

The utility model discloses a kind of construction engineering sandstone multistage screening devices, it is related to the technical field of construction engineering, suitable for the screening of construction engineering sandstone, including support base;Screening unit for screening is arranged on the upper surface of the support base;And crushing unit for crushing is arranged on the outer surface of the screening unit, the screening unit includes the screening assembly of being arranged on the upper surface of support base and the vibration assembly of being arranged on the outer surface of screening assembly.The utility model can conveniently screen sandstone by the mutual cooperation of screening box, filter screen plate one, filter screen plate two, baffle, vibrator and buffer spring, and timely discharge screened sandstone in screening process, thereby improve the screening efficiency of screening device, conveniently crush sandstone by the mutual cooperation of support frame, crushing box, driving motor one, driving motor two, crushing roller, mounting seat and crushing tooth, thereby prevent sandstone particle is larger, not convenient screening.

The application discloses a signal receiving device for wireless communication and relates to the technical field of communication devices. The surface of the shell of the device is usually provided with corresponding heat dissipation grooves; when wind-sand weather occurs outdoors, sand and stone particles in the air can easily enter the device, causing damage to the device; meanwhile, condensed water drops during heat dissipation can easily accumulate in the interior of the shell, affecting the operation of the device. The outer baffle and the inclined guide plate are matched to increase the tortuosity of the path of air outflow, and meanwhile, the entry of sand and stone particles into the interior of the shell through the air grooves due to large wind-sand outdoors is avoided, so that the damage of internal parts of the device is avoided; meanwhile, the inclined guide plate is matched with the foam ring pad, a gap is formed between the shell and the outer cover plate by the foam ring pad, the buffering effect is increased by the buffering effect of the foam ring pad, the water drops condensed on the surface of the inclined guide plate can be guided to the gap by the inclined guide plate, and the water drops are prevented from flowing in the interior of the shell, so that the internal device is prevented from being damp.

This invention discloses a method and system for detecting particle size distribution on the surface of rockfill dams based on GNSS-visual fusion, belonging to the field of hydraulic engineering construction quality inspection technology. The method acquires images of the rockfill dam surface and corresponding spatial coordinate information; for a single image, a deep learning instance segmentation model is used to identify particle contours and calculate equivalent particle sizes; adjacent image sequences are registered to match and fuse rockfill particles in theoretically overlapping areas, eliminating redundant data; through coordinate system transformation, the rockfill particle contours and equivalent particle sizes are mapped to a unified global coordinate system, generating a particle spatial distribution dataset covering the entire rockfill dam surface; finally, the overall particle size distribution curve and the spatial distribution of rockfill particles are obtained. This invention overcomes the limitation of traditional single-image detection range, achieving continuous, efficient, and high-precision detection of particle size distribution on a large surface area of ​​rockfill dams, providing a reliable technical means for monitoring and managing the construction quality of rockfill dams.

The utility model relates to a kind of sandstone quality comprehensive detection equipment, including screening bin, the inner chamber of screening bin is provided with the sieve plate for being used to the sandstone is screened and prevents sieve plate screen hole blockage and poking assembly.It is effectively realized to the sandstone particles that are stuck in screen hole to realize cleaning effect in the process of using by being provided with poking assembly, to avoid the error of screening result to cause the influence detection accuracy;It can also avoid sandstone blockage filter screen to cause its screening efficiency to reduce and need to stop to improve in the process of using;When sieve plate generates vibration, poking rod moves back and forth on the screen hole of sieve plate by being provided with multiple poking rods, when material is stuck in screen hole, it can effectively realize to be poked open, to avoid the situation of screen hole blockage occurs.

This application discloses a method for controlling the settlement of loess dams, comprising: identifying a first region in the loess dam body where the compressive stress exceeds a preset threshold; removing the loess in the first region; filling the first region after loess removal with gravel, the first region after gravel filling being called a gravel-mixed zone; and the loess dam containing the gravel-mixed zone being called a soil-stone composite. This method abandons the traditional method of relying solely on increasing compaction, and adopts the core concept of equal volume replacement. By directly replacing part of the compressible loess volume with rigid gravel particles, it physically reduces the total amount of compressible soil within the loess dam body. Furthermore, the stable framework formed by the gravel effectively bears and transfers the overlying load. This method fundamentally improves the soil structure, thereby suppressing settlement at its source.