58 results about "Rock flour" patented technology

The invention discloses a deep coal seam and geothermal resource combined mining method which comprises the following steps: S1, sample preparation: mixing different rock powders according to a particle size ratio, and pressing into a rock test piece; s2, preparing the device; loading the processed rock test piece into a supporting sleeve, then loading the supporting sleeve into a clamping structure, sealing through a sealing structure, then connecting an injection system and a temperature monitoring system with the clamping structure, and setting test conditions; s3, starting a test, injecting a fluid into the sample through an injection system to complete the test, and recording the temperature change condition of the test piece in the whole test process and the temperature change condition of the fluid flowing through the test piece at the same time; s4, repeating the test, respectively changing the proportion of the rock test piece, the heating temperature of the test piece, the injection pressure and the water injection rate, repeating the test, obtaining a heat exchange change rule in the hot dry rock mining process through comparison, simulating the coal seam water injection process through an indoor test, and analyzing the prevention and control effect of coal seam water injection by changing the water injection condition. And a basis is provided for improving the heat exchange efficiency.

The utility model discloses a device for quickly baking rock powder. The device comprises a vertical frame; the cylinder body is fixedly arranged on the inner side of the vertical frame; the feeding hopper is fixedly arranged on the front side of the top end of the cylinder body, and the feeding hopper is communicated with an inner cavity of the cylinder body; the cover plate is arranged at the top end of the feeding hopper; the baking lamp is fixedly arranged at the top end of the inner cavity of the cylinder body; the turning and stirring mechanism is arranged in an inner cavity of the cylinder body; and the discharging mechanism is arranged at the bottom end of the cylinder body. According to the rapid rock powder baking and drying device, large-area stirring and drying can be conducted on rock powder through the stirring and stirring mechanism, the drying efficiency of the rock powder is improved, part of the rock powder can be taken out in advance through the side face of the barrel through the discharging mechanism, the dryness can be observed, and therefore the drying condition of the rock powder in the barrel can be judged in time; energy waste caused by excessive drying is avoided, and the bottom cover is controlled to turn over, so that the dried rock powder can be conveniently and rapidly taken out.

The present invention discloses a pneumatic tube drilling anti-blowout and dust-proof slag-water separation device, which includes an anti-blowout and dust-proof device and a slag-water separation device. The anti-blowout and dust-proof device of the present invention is used to prevent rock cuttings, rock powder or groundwater from spraying out along the gap between the drill rod and the casing of the pneumatic tube drilling rig; the slag-water separation device collects rock cuttings and rock powder discharged from drilling construction above the aquifer, and quickly separates rock cuttings and groundwater in the aquifer construction. By opening and closing the valve at the discharge end of the material pipe, the slag-water separation device can switch between two operating modes. When the valve is closed, the slag-water separation device collects rock cuttings and rock powder during drilling construction above the aquifer. When the valve is opened during drilling construction in the aquifer, the slag-water separation device quickly separates the discharged rock cuttings from the groundwater. The above combined structure jointly achieves the technical effects of pneumatic tube drilling anti-blowout and dust-proof and slag-water separation.

The utility model relates to the technical field of scraper conveyors, in particular to a scraper conveyor capable of automatically cleaning the inner wall of a chute, which comprises the chute, two conveying chains are arranged in the chute in parallel, a self-cleaning device is arranged between the two conveying chains, the self-cleaning device comprises a cleaning strip, and the length of the cleaning strip is larger than the distance between the two conveying chains. The two ends of the cleaning strip penetrate through the two conveying chains respectively and are fixed to the conveying chains. Rock powder accumulated in the two inner walls can be swept out in the operation process of the scraper conveyor, a large amount of rock powder is prevented from being accumulated in the chute, frequent cleaning through shutdown is not needed, the service life of the scraper conveyor can be prolonged, and the working efficiency of the scraper conveyor can be improved.

The invention discloses a geotechnical engineering drilling device, and relates to the technical field of geotechnical engineering. The geotechnical engineering drilling device comprises a vehicle body, a rotating assembly and a drilling assembly, and a rotating disc and an adjusting assembly are arranged on the vehicle body. According to the geotechnical engineering drilling device, a large amount of rock powder and dust can be generated through high-speed rotary drilling of the drilling rod, the dust can diffuse in an operation area, respiratory diseases are caused after workers inhale the dust, the sight line of a drilling point position can be blocked, and even the dust is accumulated and enters a transmission part of the drilling device to cause abrasion and shorten the service life of equipment; the cleaning function of the water pump and the annular pipe can synchronously reduce dust during drilling, dust is inhibited and washed in time through water flow or a cleaning medium, dust diffusion is avoided, the working environment is improved, the body health of workers is protected, the drilling area can be clearly exposed, operators can conveniently observe the drilling condition in real time, and the drilling efficiency is improved. Meanwhile, pollution of dust to internal parts of equipment is reduced, and the maintenance frequency and cost of the equipment are reduced.

The application discloses a kind of complex geological conditions under multi-metal ore blending unit automatic division method, comprising the following steps;Step 1: collecting rock powder test data;Step 2: the rock powder test data collected is preprocessed;Step 3: based on space geometry, find out blast pile borehole boundary point by means of-shape method, form peripheral boundary polygon, and-shape method is used to approach blast pile boundary;Step 4: the blast pile borehole boundary point is expanded outward;Step 5: by means of Voronoi diagram algorithm, blast hole is divided into tessellation polygon on the level, and the range including influence area is formed;Step 6: fine ore blending unit solution division and evaluation, the inverse ratio of the square of the distance of ore block and each ore blending center is weighted, the attribution proportion of each ore block to different unit is calculated, and ore blending unit division is realized.The application realizes the whole process automation from rock powder test data acquisition processing, boundary extraction, unit division to resource quantity estimation.

A surface mine drilling rock powder in-situ stratified sampling device relates to the technical field of mines and comprises an outer pipe body, an inner pipe body, a piston and a closing device, the inner pipe body is slidably arranged in the outer pipe body, and the piston is arranged in the inner pipe body in a drawing manner; the closing device is fixed to an opening in the lower end of the outer pipe body and comprises a baffle ring, a round pipe and a sector plate, an inner hole of the baffle ring is a stepped hole, an upper hole of the stepped hole is a round hole, a big-end-down trapezoidal hole extends from the lower end face of the round hole to the edge of the lower end of the baffle ring, and the outer ring face of the baffle ring is fixed to the inner wall of the bottom of the outer pipe body. A round pipe is arranged on the baffle ring, a plurality of fixing blocks are arranged on the round pipe at intervals, the round pipe is fixed on the baffle ring through the fixing blocks, a plurality of fan-shaped plates are arranged, the fan-shaped plates are combined to form a round structure, sleeves are fixed on the outer arc surfaces of the fan-shaped plates, and the sleeves are rotationally arranged outside the round pipe. According to the utility model, the purpose of stratified sampling is realized, and the sampling work is more accurate.

The present invention provides a method for advanced gas detection under special geological conditions. The method comprises the following steps: Step 1: drilling an advanced borehole on the tunnel face, the advanced borehole being used to detect whether there is a special geological condition such as a coal seam or goaf ahead of the tunnel face; Step 2: removing rock dust and stone chips from the borehole to prevent the stone chips from affecting gas detection during the detection process; Step 3: installing an advanced gas detection auxiliary device in the borehole, the advanced gas detection auxiliary device being used to displace gas from the bottom of the borehole to the orifice for easy detection; and installing a gas detection device at the orifice of the borehole, the gas detection device being used to detect harmful gases; Step 4: activating the advanced gas detection auxiliary device, continuously collecting harmful gas data through the gas detection device, and processing the collected detection data to obtain the absolute emission volume of the harmful gas. The method is cost-effective and highly adaptable.

The invention belongs to the technical field of gas extraction and drainage, and discloses a negative pressure stabilizing device for gas extraction and drainage in an underground coal mine, which comprises an extraction pipeline, the lower side of the extraction pipeline is fixedly communicated with a one-way water inlet pipe, and one side, far away from the extraction pipeline, of the one-way water inlet pipe is fixedly communicated with a negative pressure drainage tank; through cooperation of the oppositely-opened shell, the dust filtering cover, the brush, the one-way water guide pipe, the sponge brush and other structures, the effect of integrating the three functions of impurity brushing, water spraying cleaning and water stain wiping is achieved, the filter screen cover is arranged outside the exhaust pipe, the situation that coal powder, rock powder and other light-weight solid impurities flow back into a pipeline along with gas flow again is avoided, and the service life of the pipeline is prolonged. When the floating ball floats upwards, the circular groove rod also moves upwards, the cambered surface extrusion block is extruded through the spiral groove to drive the oppositely-opened shell on the rotating disc to continuously rotate, and the pair of brushes located on the oppositely-opened shell abut against the inner side and the outer side of the dust filtering cover to continuously brush the inner side and the outer side of the dust filtering cover, so that the net surface is cleaned in real time.

The utility model discloses a blasthole cleaning device which comprises a base, a cleaning pump and an energy-saving device. The cleaning pump is fixedly connected to the top of the base, the dust collector is arranged on the front side of the cleaning pump, the blowing device is arranged on the rear side of the cleaning pump, the dust collection pipe is fixedly connected to the top of the dust collector, the adapter is fixedly connected to the top of the dust collection pipe, and the collecting tank is fixedly connected to the left side of the dust collector. The top of the air blowing device is fixedly connected with an air blowing pipe, the other end of the air blowing pipe is fixedly connected with a spray head, and the energy-saving device is fixedly connected to the left side of the cleaning pump and is composed of a power source, a supporting column and a solar panel. Hole blockage is effectively prevented, an automatic and mechanical cleaning mode is adopted, the cleaning efficiency is improved, it is ensured that no disintegrating slag and rock powder are left in the blast hole, dust flying is reduced, and pollution to the construction environment is reduced.

The utility model relates to the technical field of rock powder sampling, and discloses a surface mine drilling rock powder sampling device which comprises a rectangular plate, first positioning columns are fixedly installed at the four corners of the bottom of the rectangular plate respectively, a first barrel is installed in the rectangular plate in a sliding mode, and a drill bit is arranged at the bottom of the first barrel. A threaded cylinder is installed in the first cylinder in a threaded mode, a second cylinder is fixedly installed at the top of the threaded cylinder, a sampling mechanism is arranged in the first cylinder, and an installation mechanism is arranged in the first cylinder. Rock powder with different depths is stored in different storage grooves, multiple times of sampling are completed at a time, the efficiency is higher, and the sampling efficiency is improved. The arc-shaped baffle rotates to shield the material storage tank, rock powder is sealed and stored in the material storage tank, and the sampling block is separated from the interior of the cylinder I, so that a new sampling block can be conveniently and quickly replaced and mounted for next sampling, the sampling work can be completed in the shortest time, and the sampling device is safer.

Mineral wallpaper comprising a layer of aggregate (1) applied to a flexible textile backing material (2), wherein the mineral wallpaper has a thickness of up to 1.5 mm, wherein the macropore-free aggregate layer (1) has a mass fraction of over 70 to 90 percent rock flour from carbonate rock, wherein the rock grains in the aggregate layer (1) are bonded by means of a homogeneously distributed binder, characterized in that the proportion of the binder in the aggregate layer (1) is 6 to 14 percent of the mass of the aggregate layer (1), wherein the binder is an acrylate.

The invention relates to a coal rock identification experiment system and method.The coal rock identification experiment system comprises a working condition simulation box, a draught fan, a separating and drying module and a material bin, and the draught fan is used for supplying air into the working condition simulation box; the working condition simulation box is used for feeding pulverized coal, rock powder and water mist to form a mixed sample of dust and water mist so as to simulate the real working condition of the working face of the coal mining machine; the separating and drying module is used for carrying out gas-solid separation on the mixed sample in the working condition simulation box and carrying out drying treatment on separated dust particles; the system further comprises a detection pipe connected with the material bin, a pump unit and an LIBS detection device, the pump unit is used for mixing the dust particles in the material bin with the airflow to form gas-solid two-phase flow, and the LIBS detection device is used for detecting the dust particles in the gas-solid two-phase flow. The system not only can simulate a complex coal face environment, but also can provide stable dynamic dust flow for LIBS online detection, and provides a reliable experimental verification platform for practical application of an LIBS technology in the field of coal rock recognition and development of a field system.

This invention discloses an air-assisted reverse circulation drilling cuttings guiding device for permafrost, relating to the field of drilling equipment technology. It includes a double-walled drill rod and an inner drill rod. An outer drill bit is installed at the end of the double-walled drill rod, with a cuttings guiding channel formed by the gap between the two. The inner drill rod is rotatably positioned within the cuttings guiding channel, with helical blades on the outside and an inner drill bit at the end. An outer annular gap communicating with the cuttings guiding channel is provided inside the double-walled drill rod, and a sampling chamber is located inside the outer drill bit. During operation, the double-walled drill rod drives the outer drill bit to open and enlarge the hole, while the inner drill rod drives the inner drill bit to break the rock mass. The elastic body between the inner drill bit and the inner drill rod provides axial preload to enhance the rock-breaking effect. A mixed liquid is injected into the bottom of the hole through a liquid passage and a liquid storage chamber via a jet hole to prevent rock dust from freezing. High-pressure air enters the cuttings guiding channel through the outer annular gap, and combined with the helical blades, it achieves dual-drive upward return of rock cuttings, avoiding deposition and drill bit jamming. Simultaneously, precise sampling is achieved through the sampling chamber.

The invention discloses a vertical S-shaped drill hole punching method which comprises the following steps: (1) pressing clear water into the bottom of a vertical S-shaped drill hole through a drilling tool to wash most rock powder or grouting slurry particles in the drill hole; (2) mud is pressed into the bottom of the vertical S-shaped drill hole through a drilling tool so as to replace the remaining rock powder or grouting slurry particles in the drill hole; (3) clear water is pressed into the bottom of the vertical S-shaped drill hole through a drilling tool; (4) a xanthan gum solution is pressed into the bottom of the vertical S-shaped drill hole through a drilling tool; (5) clear water is pressed into the bottom of the vertical S-shaped drill hole through a drilling tool; and (6) the drilling tool is lifted, and alum water is pressed into the vertical S-shaped drill hole through the drilling tool while the drilling tool is lifted. The problem that after drilling or grouting construction of a vertical S-shaped drill hole is finished, the imaging effect of a television or a drill hole peeping instrument in the hole is affected due to the fact that a large amount of rock powder or grouting slurry particles exist in the hole can be solved.

The invention discloses a rock powder collecting device for collecting geological prospecting samples, relates to the technical field of rock powder collecting devices, and aims to solve the problems that in the prior art, a large amount of splashing rock powder can be generated during cutting of a grooving machine, the rock powder is manually collected after cutting in an existing rock powder collecting mode, and the rock powder cannot be easily collected due to the large splashing range of the rock powder. And manual collection is troublesome. An arc-shaped baffle is fixedly arranged on the grooving machine, a rock powder baffle is rotationally connected to the lower end of the grooving machine and the lower end of the front end of the arc-shaped baffle, a rock powder inlet is formed in the middle of the rock powder baffle, a material guiding cover is connected to the rear end of the rock powder baffle, a separating box is fixedly connected to the rear end of the material guiding cover, and a discharging opening is formed in the lower end face of the separating box. Through the structures such as the rock powder baffle, the material guiding cover, the separating box and the collecting box, splashing rock powder generated in the cutting process of the grooving machine is effectively collected, and the rock powder collecting efficiency is improved.

The utility model discloses a full blasthole ore rock horizon undisturbed positioning sampling device includes: fixed connecting piece, sample receiving groove and dismounts buckle, sample receiving groove is by the side baffle, an end baffle and a side baffle that enclose in the rectangular bottom plate edge in proper order and is composed, sample receiving groove still has one side open edge and upper side open edge, one side baffle is inserted to the rectangular bottom plate through both sides insertion slot, one side insertion slot is opened on the end baffle, the insertion slot of the other side is opened on the stand, and this stand is close to side open edge, and the side baffle is transparent movable pull -out, and sample receiving groove is evenly fixed in the periphery of fixed connecting piece through dismounting buckle, and the side open edge of sample receiving groove is towards fixed connecting piece, and the upper side open edge is located the top of fixed connecting piece, and the end of above-mentioned side baffle or stand towards fixed connecting piece is marked with a scale, and the device can measure the height range of different color rock powder area in the accumulation body, and the depth of blasthole ore rock horizon and ore, rock layer thickness are calculated.

The invention discloses a railway tunnel engineering construction period production wastewater filter pressing treatment method and system, and relates to the technical field of environmental engineering and water treatment.The railway tunnel engineering construction period production wastewater filter pressing treatment method comprises the following steps that S1, quality-divided collection and hardening and tempering are conducted; the method comprises the following steps: respectively collecting high-specific-gravity rock powder-containing wastewater generated in tunneling and organic colloid-containing wastewater generated in a tunnel field area; s2, performing multi-stage coagulation and reinforced solid-liquid separation; feeding the conditioned wastewater into an efficient vortex coagulation device, and instantaneously adding an inorganic coagulant under the condition of violent turbulence so as to destabilize fine particles; s3, carrying out chemical conditioning and mechanical filter pressing on the sludge; s4, synergistically purifying and recycling the filtrate; by adopting the filter pressing treatment method and the filter pressing treatment system for the production wastewater in the construction period of the railway tunnel engineering, reduction and recycling are realized; and meanwhile, through ultrafiltration deep purification, the wastewater is reused for a high-standard construction process, near-zero emission of the production wastewater and resource utilization of solid wastes are finally achieved, and remarkable environmental protection and economic benefits are achieved.

The invention discloses an argillaceous salt rock anti-swelling property determination method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring target rock powder, wherein the target rock powder is argillaceous salt rock powder or simulated argillaceous salt rock powder; performing desalting treatment on the target rock powder to determine to-be-treated rock powder; determining expansion volumes of the rock powder to be treated in different solvents, wherein the expansion volumes comprise a first expansion volume, a second expansion volume and a third expansion volume; and determining the expansion rate of the target rock powder according to the expansion volumes of the to-be-treated rock powder in different solvents, wherein the expansion rate of the target rock powder comprises a first expansion rate and a second expansion rate. According to the method, the first swelling volume V0 of the argillaceous substance in the salt rock is obtained by using an organic solvent Soxhlet extraction salt dissolving method under the completely anhydrous condition, the problem that the V0 cannot be measured before and after water dissolution is solved, and the measurement accuracy of the swelling rate is improved.

The present invention relates to a blasting smoke collection and rock powder dust removal device and method for rock drilling and blasting excavation, belonging to the technical field of tunnel dust removal, the device comprises a support frame composed of an inner shed and an outer shed, one end of the support frame in the length direction is open, and the other end is provided with a dust removal net, a first spray dust collector is provided on the dust removal net, a second spray dust collector is provided in the inner shed, and ventilation holes are provided on the wall of the inner shed, a gap is provided between the inner shed and the outer shed to form a cavity, the two ends of the cavity are closed, and a third spray dust collector is provided in the cavity, and ventilation holes are provided on the wall of the inner shed, and also comprises a blasting smoke collection system, the blasting smoke collection system is connected with the cavity, and can collect the blasting smoke in the support frame along the ventilation holes of the inner shed into the cavity and discharge it to the return air lane. On the basis of realizing blasting smoke collection and dust removal, it can play the function of temporary support and working face cooling.