37results about How to "Guaranteed settlement" patented technology

The invention discloses a multi-Agent cooperation method and system achieved in a dynamic environment. The method comprises the following steps that 1, a current environment of a multi-Agent system is described through a multi-Agent field description language; 2, a to-be-solved problem input by a user is received and described; 3, an optimal scheme for solving the to-be-solved problem is planned; 4, all Agents in the multi-Agent system sequentially complete actions allocated to the Agents respectively according to the optimal scheme until all the actions are completed, and the to-be-solved problem is solved; 5, when it is determined that the current action cannot be completed, the current environment is sensed again and redescribed, and then the step 3 is conducted. The method has the advantages that when the Agents cannot continue to execute the actions due to changes of the current environment of the multi-Agent system, the Agents can be replanned to ensure accomplishment of the tasks.

The invention relates to a pyrolysis-gasification integrated conversion and utilization system for waste biomass resources and a method used by the same. The system comprises a pyrolysis device, a gas feeder, a multifunctional heat exchange device and a waste heat supply device, wherein a gas channel of the multifunctional heat exchange device is respectively connected with the pyrolysis device and the gas feeder, and a condensed water channel is connected with the waste heat supply device. The method comprises the following steps: delivering the raw material biomass waste into the pyrolysis device for high temperature pyrolysis to obtain mixed gas containing combustible gas, tar gas, acetic acid gas and water vapor; and introducing the mixed gas into the multifunctional heat exchange device for heat exchange and separating combustion gas from mixed liquor of tar and acetic acid after heat exchange, wherein hot water is obtained, hot water and combustion gas are respectively utilized by the waste heat supply device and the gas feeder to supply gas, heat and hot water for residents, acetic acid can be used as a biological foliar fertilizer, a biopesticide or a biological bactericide, and tar can be used as an industrial raw material. The integrated conversion, collection and utilization rate of the waste biomass resources approaches 100%.

The invention discloses growth-promoting and insect-prevention amino acid water-soluble fertilizer. The growth-promoting and insect-prevention amino acid water-soluble fertilizer is prepared from thefollowing raw materials in parts by weight: 10 to 18 parts of molasses, 35 to 65 parts of amino acid mother liquid, 2 to 15 parts of a biogenic insect-repelling agent, 5 to 10 parts of an emulsifyingdispersant and 10 to 30 parts of a nitrogen phosphorus potassium raw material. The amino acid water-soluble fertilizer disclosed by the invention can be used for effectively preventing and treating common aboveground insects including aphids, giant worms, adoxophyes cyrtosema meyrick, thrips and the like which are common in facility production; the growth of roots of crops can be promoted by adopting a drip irrigation and near-root fertilizer application manner; organic active substances of the amino acid and the molasses in the product can be used for buffering and adjusting an edaphone community and physicochemical properties and the dual aims of efficient utilization of nutrients and healthy growth of the crops are realized; a foundation is laid for improving the quality of fruits of the crops and improving the stress resistance of the crops; meanwhile, the utilization of pesticide and chemical fertilizer is reduced and the fertilizer has good ecological benefits.

The invention provides a construction method for additionally building a high-speed railway roadbed in parallel with an existing high-speed railway. The method comprises the steps of arranging a lengthened cast-in-situ bored pile at the slope toe of a side slope of the existing high-speed railway roadbed; after the cast-in-situ bored piles reach certain strength, arranging prestressed pipe piles in the subgrade foundation range of the newly-built high-speed railway; removing the slope surface protection of the existing high-speed railway roadbed slope, and digging a large step; pouring a concrete cushion layer on the top of the prestressed pipe pile, laying an impermeable layer, and pouring foam light soil; and constructing roadbed slope protection. Under the condition that the existing high-speed railway with the speed of 350 km / h is parallel, the functional use requirements of the newly-built high-speed railway with the speed of 350 km / h can be met, the roadbed base stress diffusion of the newly-built high-speed railway does not influence the operation of the existing high-speed railway, and the roadbed settlement of the existing high-speed railway is not influenced; the stability of the newly-built roadbed and the existing roadbed, the settlement amount and the transverse displacement in the operation period meet the standard requirements, and the use function requirements of the newly-built roadbed and the existing roadbed are met.

The invention belongs to the field of geotechnical engineering, and particularly relates to a foundation treatment structure suitable for a deep soft foundation with a sandwiched thin bearing stratumand a construction method. The foundation treatment structure comprises a raft, a mattress layer, pipe piles and stirring piles, wherein the mattress layer is arranged at the bottom of the raft and located at the top of an upper soft soil foundation layer; the pipe piles are arranged at intervals and arranged at the bottom of the mattress layer, and the lower ends of the pipe piles are located ina middle bearing stratum; and the stirring piles are arranged at intervals and arranged at the bottom of the mattress layer and located in the upper soft soil foundation layer. According to the foundation treatment structure suitable for the deep soft foundation with the sandwiched thin bearing stratum, the engineering investment is saved; and settlement of a composite foundation is reduced, the bearing capacity of the composite foundation is improved, and the problems that the foundation settlement is large, the foundation bearing capacity is low and the pipe piles are prone to piercing the middle bearing stratum when the pipe piles are located in the middle bearing stratum are solved.

The invention discloses a waterproofing treatment method for a seam between a novel station and an old station, comprising the following steps: reinforcing steel bars (2) are horizontally or vertically arranged inside an underground wall (1) of the old station; steel corbels (4) are arranged on connecting positions of crest slabs (3) of the novel station and the underground wall (1) of the old station and welded with embedded reinforcing steel bars (2); reinforcing mat plates (5) are arranged under the corbels (4); water swelling putty water-stop strips (6) and full-face injectable slip-casting pipes (7) are arranged on the connecting positions of the crest slabs (3) of the novel station and the underground wall (1), and the last step is to inject cement slurry in the slip-casting pipes. The invention can fully solve the structural water leakage problem due to differential settlement when the novel structure is connected with the old structure. After the waterproof node processing technology of the invention is adopted, water resistance in the seam of the novel structure and the old structure is effectively guaranteed and simultaneously settlement between the two structures is guaranteed.

The invention discloses a horizontal-expansion lumbar vertebrae intervertebral fusion machine which can achieve minimally invasive implantation and relates to the field of medical apparatus and instruments. The fusion machine comprises a fusion machine body and a movable part, the movable part is arranged to slide along an inner cavity of the fusion machine body, a blocking part is fixedly arranged at one end of the fusion machine body, and the blocking part is arranged to prevent the movable part from being separated from the fusion machine body. The upper side surface and the lower side surface of the fusion machine body are provided with rough patterns. The inner cavity is provided with a first hole which runs through the inner cavity up and down and / or a second hole which runs throughthe inner cavity front and back. According to the lumbar vertebrae intervertebral fusion machine, the three-dimensional scale of the fusion machine is small before the fusion machine is spread, the fusion machine can be horizontally spread and expanded after the fusion machine is invasively implanted into the intervertebral gap through the intervertebral hole admission passage, the large bone grafting bed area can be provided, the main body supporting area that the fusion machine is in contact with an end plate is also greatly increased compared with a traditional fusion machine, the good initial stability can be achieved, the intervertebral fusion rate can be further improved, and the fusion machine helps to effectively lower sedimentation of the fusion machine.

The invention provides a sediment cleaning device and a cast-in-place pile hole sediment cleaning method with the expanding head. The device comprises a reverse pulp guide pipe, a first air supply guide pipe and a stirring mechanism, wherein one end of the reverse pulp guide pipe is open; the reverse pulp guide pipe is arranged in the pile hole, an output opening is formed in the closed end of thereverse pulp guide pipe, and a first preset distance is formed between the opening end of the reverse pulp guide pipe and the bottom of the pile hole, and the reverse pulp guide pipe is used for conveying slurry and sediment in the pile hole to the ground; the first air supply guide pipe is arranged at the closed end of the reverse pulp guide pipe in a penetrating mode and is partially arranged inside the reverse pulp guide pipe, and the first air supply guide pipe is used for conveying compressed air; and the stirring mechanism is at least partially arranged in the pile hole, the stirring mechanism is used for stirring slurry in the pile hole, and the slurry is used for driving the sediment to be conveyed into the grouting guide pipe. According to the sediment cleaning device and the cast-in-place pile hole sediment cleaning method with the expanding head, the purpose of cleaning the sediment in the pile hole can be effectively achieved, so that the sediment cleaning is further guaranteed, and meanwhile, the cleaning device is suitable for any pile hole., and can meet relevant design requirements.

The invention relates to a cooling device for machine tool machining. The cooling device includes an installation seat; the installation seat is provided with a cooling spraying nozzle group; the installation seat is circular, the center of the installation seat is provided with a through hole through which a main shaft can pass; the cooling spraying nozzle group includes a first spraying nozzle group and a second spraying nozzle group; the first spraying nozzle group includes a first circular water inlet pipe and a plurality of first spraying nozzles which are arranged on the first water inlet pipe at an equal interval and can adjust the spraying direction; the second spraying nozzle group includes a second circular water inlet pipe and a plurality of second spraying nozzles which are arranged on the second water inlet pipe at an equal interval; the outer periphery of the installation seat is provided with a circular baffle sheet; the first spraying group and the second spraying group are arranged in the circular baffle sheet, and the second spraying nozzles face the circular baffle sheet. The cooling device is high in universality, can be used to machine common parts, and can achieve a good effect while machining parts which can generate ash.

The invention discloses a particle bed filtering and dust removing device. The device comprises a casing, wherein a dust-containing air inlet is arranged at the top of the casing, a dust outlet is arranged at the bottom of the casing, at least two layers of particle bed filters are vertically arranged in the casing, a back blowing air settling chamber is formed inside, a gap between the inner wall of the casing and the peripheries of the particle bed filters serves as an airflow chamber, the back blowing air settling chamber penetrates through at least two layers of particle bed filters from the lowest layer, the back blowing air settling chamber communicates with the dust outlet, each particle bed filter which is not penetrated by the back blowing air settling chamber comprises at least one filter unit, each particle bed filter which is penetrated by the back blowing air settling chamber comprises at least two filter units distributed on two sides of the back blowing air settling chamber, the airflow chamber and the back blowing air settling chamber communicate with a dust-containing air vent port, and a first inertia separation air deflector forming an angle of 10-45 degrees with the vertical direction is arranged at the dust-containing air vent port in the back blowing air settling chamber. The device has the advantages that back blowing air flows downwards and settling and discharge of dust are effectively guaranteed.

The invention relates to the field of coating machines, in particular to a coating machine capable of reducing air pollution. According to the technical scheme, the coating machine comprises a coatingmachine body, a spiral pump is connected to the coating machine body, an outlet of the spiral pump is connected with a coating pipe, and a spray nozzle is arranged on the end portion of the coating pipe. The spray nozzle is sleeved with an umbrella-shaped cover, and the umbrella-shaped cover is connected with an exhaust pipe. The coating machine body is provided with a water tank, an exhaust opening is formed in the water tank, the water tank is provided with an exhaust fan, the air inlet of the exhaust fan is connected with the exhaust pipe through a pipeline, and an air outlet of the exhaust fan communicates with the water tank through a pipeline. The coating machine capable of reducing air pollution can effectively treat dispersed painting mist in the coating process, and the problemsthat environment is polluted and health of staffs is damaged when the coating machine is in use are solved

The invention relates to a construction method of a soft surrounding rock tunnel collapse cave foam concrete backfill structure. The construction method comprises the following steps of 1) conducting constructing and manufacturing; (2) excavating a manual hole digging pile; 3) binding a reinforcement cage; (4) bearing platform construction; 5) backfilling small karst caves at the bottom of the tunnel; (6) forming small waterless karst caves in the side wall of the tunnel; (7) conducting vault crack construction; (8) backfilling the tunnel vault small waterless karst cave; (9) constructing a pre-embedded steel frame of a supporting wall; (10) conducting supporting wall and lining construction; (11) conducting secondary lining construction; 12) conducting back pressure backfilling; and (13) conducting tunnel roadbed construction. The method has the beneficial effects that a retaining wall of the manual hole digging pile adopts an assembly type, and a water escape valve is arranged on the retaining wall, so that the water escape valve can be opened and closed at any time according to the water quantity around the hole, the safety in the hole digging construction process is ensured, and the construction efficiency can be improved by using the assembly type technology.

The invention discloses a construction method for controlling settlement convergence of a shallow buried loess tunnel with a high water level. The construction method includes the following steps that(1) precipitation of a precipitation well is achieved; (2) the reserved deformation amount is determined; (3) the step height is determined; (4) upper step excavation and preliminary bracing are achieved; (5) an upper step false stull is applied; (6) one sides of middle steps are excavated, and preliminary bracing is achieved; (7) a middle step false stull is applied; (8) one sides of lower stepsare excavated, and preliminary bracing is achieved; (9) primary support closed-loop construction is achieved; (10) secondary lining invert arch pouring is achieved; and (11) pouring of secondary lining arch wall is achieved. According to the method, design is reasonable, economic and social benefits are obvious, energy saving and environmental protection can meet the standard requirements, the technology reaches the advanced level in China, the method is used for quick installation construction of large-span, cross-railway transit T-shaped steel box girders, and the good application and promotion value is achieved.

The invention discloses an engine cooling system with a sand trap. The engine cooling system comprises a cylinder body water jacket, a cylinder cover water jacket and a water pump. The cylinder body water jacket and the cylinder cover water jacket are connected. A water outlet of the cylinder cover water jacket is connected with a water inlet of a radiator through a thermostat. A water outlet of the radiator is connected with the cylinder body water jacket through a water pump. The sand trap is arranged between a pipeline between the water outlet of the cylinder cover water jacket and the water inlet of the thermostat. The upper end of the sand trap is communicated with the pipeline. When cooling liquid enters the pipeline, the cooling liquid containing cylinder cover type sand granule impurities enters the thermostat after passing through the sand trap, and vortex produced through the sand trap enables the cylinder cover type sand granule impurities in the cooling liquid to be deposited at the bottom of the sand trap; then, when an engine is maintained, the bottom of the sand trap is detached to be cleaned, and after cleaning is finished, the bottom of the sand trap is installed, and cooling liquid is added into the engine. The engine cooling system is low in energy consumption, easy and convenient to disassemble and maintain, simple in structure, low in cost and easy to maintain.

The invention provides a water endogenous pollutant treatment system which comprises a flushing device, an air floatation separation device, a dosing device and a sludge treatment device. Compared with the prior art, the method has the advantages that air-flushing rotational flow washing, dosing flocculation and micro-nano bubble air floatation are adopted for cooperative treatment, so that the problems that in the prior art, the sludge amount is large, the treatment cost is high, the water quality is slowly improved, and the water quality cannot be effectively improved are solved; by adoptingthe treatment system disclosed by the invention, light organic pollutants in the bottom mud can be effectively removed, a large amount of heavy mud and sand are prevented from being removed, the desilting amount is remarkably reduced, and the sludge generation amount is only 1 / 10 of that of a traditional desilting method. According to the invention, the purposes of sludge elution, pollutant separation and clear water returning to the river are synchronously achieved, and the water quality of the water body is rapidly improved. In addition, the invention further provides a water endogenous pollutant treatment method.

The invention belongs to the technical field of airport operation guarantee, and particularly provides an airport electric equipment intelligent management platform based on the Internet of Things andan airport intelligent system. The airport electric equipment intelligent management platform based on the Internet of Things comprises an electrically driven vehicle data acquisition terminal, an electrically driven special equipment data acquisition terminal, a charging pile data acquisition terminal and an Internet of Things management terminal. The airport intelligent system comprises an electrically-driven vehicle, electrically-driven special equipment, a charging pile and the airport electric equipment intelligent management platform based on the Internet of Things. According to the invention, settlement of guarantee services is facilitated, an operation guarantee scheme is optimized, the management efficiency is improved, parameters influencing safe operation of the electric driveequipment can be monitored in real time, the safe operation level and the intelligent management level of an airport are improved, and the system has the characteristics of reliable operation, convenient use and high management efficiency.

The invention provides a construction method of underground diaphragm walls close to subways. The construction method comprises the steps that (1) composite anchor piles are used for reinforcing and protecting bridge piles and roadbeds of the adjacent subways; (2) surveying and setting out are conducted; (3) excavation is conducted at the positions of guide walls according to surveying and settingout positioning parameters, then plain concrete cushion layers are poured, and guide wall construction is conducted; (4) all the underground diaphragm walls on the same straight line section are divided according to groove sections, and framing groove jumping construction is conducted; (5) a reinforcement cage is hoisted, and guide pipe arrangement and concrete pouring are conducted; and (6) in the step (1) and the steps (3) - (5), the deformation conditions of the bridge piles and the roadbeds of the adjacent subways are monitored, an accumulated deformation curve is generated according to monitored data, and construction parameters in the step (1) and the steps (3) - (5) are adjusted in time according to the deformation conditions. Through the technical scheme provided by the invention,the problem that in the prior art, the underground diaphragm walls close to the subways cannot meet the construction requirements can be solved.

The invention provides a foundation pit excavation and support method of a shield starting shaft adjacent to a subway. The foundation pit excavation and support method of the shield starting shaft adjacent to the subway comprises the following steps: 1) using composite anchor piles to reinforce and protect elevated sections and subgrade sections of the adjacent subway to reduce the disturbance tothe ground caused by isolation pile construction; 2) performing enclosure structure construction, wherein the enclosure structure adopts a combination of underground continuous walls and jet groutingpiles, and the joint of two adjacent underground continuous walls are reinforced with a jet grouting pile to stop water; and 3) adopting a horizontal segmentation and vertical layered excavation method for excavation, setting the current excavation layer as the base layer, performing support construction on the base layer after the base layer excavation is completed, and excavating the next layerof the base layer after the support construction of the base layer is completed until the excavation of the foundation pit is completed. Through the technical scheme provided by the application, the problem that the foundation pit of the shield starting shaft adjacent to the subway in the prior art cannot meet the construction requirements can be solved.

The invention discloses a biomass gasification extract liquid cooling device. The biomass gasification extract liquid cooling device comprises cooling pipes and a cooling fan. Each cooling pipe comprises a motor, an outer pipe with fins, a middle threaded rod, a threaded push plate for cleaning tar, a bearing, a fixed end socket and the like, wherein the threaded push plate is matched with the middle threaded rod through a screw pair; and the motor rotates to drive the cleaning plate to axially move so as to periodically clean tar accumulated in the pipe and guarantee the heat exchange effect. The cooling fan is arranged below the cooling pipes. Heat of the cooling pipes is taken away through air blasting, and accordingly extract liquid is cooled. By adopting the biomass gasification extract liquid cooling device, the problem that the heat exchange effect is reduced through a traditional indirect cooling method due to tar accumulated in pipelines is solved; and the environmental protection problem that VOC generated in the air by a direct cooling tower exceeds the standard is solved as well.

The invention discloses a particle bed filter and dust removal device, which comprises an outer shell, the top of which is provided with a dust-containing gas inlet, the bottom is provided with a dust discharge port, and the inside is provided with at least two layers of particle bed filters along the vertical direction. There is a back blowing gas settling chamber, the gap between the inner wall of the outer shell and the outer periphery of the particle bed filter is used as the air flow chamber, the back blowing gas settling chamber runs through at least two layers of particle bed filters from the lowest layer, the back blowing gas settling chamber and the The dust outlet is connected, and the particle bed filter that is not penetrated by the back blowing gas settling chamber includes at least one filter unit, and the particle bed filter that is penetrated by the back blowing gas settling chamber includes at least two filter units and is distributed in the back blowing gas settling chamber On both sides of the airflow chamber, the blowback gas settling chamber is connected with the dust-laden gas vent, and the dust-laden gas vent is provided in the blowback gas settling chamber with a first inertial separator at an angle of 10° to 45° from the vertical direction. Deflector; the advantage is that it can make the blowback air flow downward, effectively ensuring the dust to settle and discharge.

The invention relates to a bi-directional expansion rubber water stop strip applicable to the intersection of an expansion joint and a settlement joint of a bridge, and a construction method of the bi-directional expansion rubber water stop strip. The expansion joint and the settlement joint are both cut off and spaced, and the bi-directional expansion rubber water stop strip is in a U shape and is provided with a folded area in the length direction. Due to the fact that the expansion joint and the settlement joint are both directly cut off and spaced, the requirement for bi-directional expansion is met, and water prevention is achieved by adopting the curved bi-directional expansion waterproof rubber water stop strip. U-shaped rubber is provided with a curved U-like section, so that original stretching or settlement is ensured, on this basis, the folded area of the certain length is additionally arranged at the intersection in the length direction of the rubber, the requirement for expansion in the length direction is met, and tensile fracture of the rubber at the intersection in the length direction is avoided.

The invention discloses a construction pipe jacking process of a new pipe-roofing method. The construction pipe jacking process comprises the following steps that firstly, water level geological investigation is conducted, and monitoring points are arranged; 2, a starting well and a receiving well are made; 3, construction pipe parameters are determined; fourthly, a pilot hole is punched; 5, jacking a wall protecting pipe and installing a steel wire rope; 6, connecting the steel wire rope with the construction pipe; step 7, mounting and debugging; 8, the construction pipe is jacked, and meanwhile the steel wire rope applies pulling force to the front end of the construction pipe; and step 9, obstacle detection. According to the method, ground surface settlement is controlled and observed all the time in the construction process, top deviation in the construction pipe jacking process is effectively reduced, stratum disturbance caused by deviation correction is greatly reduced, and ground surface settlement is effectively reduced.

The invention discloses a static settling sewage treatment device and method for modification and purification of sludge. The device comprises a tank body, wherein the tank body is divided into a settling cavity and a water storage cavity by a partition plate; and an oil overflowing and drainage groove is formed in the top of the settling cavity, inclined pipe filler is arranged in the middle of the settling cavity, and a drainage port, a drainage pipe, a flotation device and a water distributor are arranged at the bottom of the settling cavity. According to the device, sludge is modified by utilizing a sludge modification treatment agent and is cooperated with other sewage treatment agents for treatment; the device is used for modification treatment and repeated use of the sludge; in the operation process of the device, the modified sludge in the settling cavity is recycled and periodically replaced; the quality of treated sewage can stably reach a standard; and compared with a conventional process, treatment cost is reduced by 50% or more, a sludge amount is reduced by 90% or more, cost is saved, and a sludge discharge amount is reduced.

The invention discloses an ultra-long shallow-buried excavation construction method for an existing pipeline in a complex environment. The method includes the following steps of firstly, arranging multiple top pipe curtains at the top elevation position of an underground passageway arranged along the portion below the pipeline of a road in a penetrating mode; secondly, arranging multiple side portion pipe curtains at the positions of the two side walls of the underground passageway within the height range of the underground passageway; thirdly, conducting soil body grouting in the internal area defined by the top pipe curtains and the side portion pipe curtains of the underground passageway; fourthly, pouring concrete on the wall face of the passageway after the internal area defined by the top pipe curtains and the side portion pipe curtains of the underground passageway is divided into a first guide hole, a second guide hole and a third guide hole for excavation and waterproofing is conducted on the side walls and the top wall. By means of the method, it is ensured that the whole construction process is conducted under the condition that safety is monitored.

The invention discloses an engine cooling system with a sand trap. The engine cooling system comprises a cylinder body water jacket, a cylinder cover water jacket and a water pump. The cylinder body water jacket and the cylinder cover water jacket are connected. A water outlet of the cylinder cover water jacket is connected with a water inlet of a radiator through a thermostat. A water outlet of the radiator is connected with the cylinder body water jacket through a water pump. The sand trap is arranged between a pipeline between the water outlet of the cylinder cover water jacket and the water inlet of the thermostat. The upper end of the sand trap is communicated with the pipeline. When cooling liquid enters the pipeline, the cooling liquid containing cylinder cover type sand granule impurities enters the thermostat after passing through the sand trap, and vortex produced through the sand trap enables the cylinder cover type sand granule impurities in the cooling liquid to be deposited at the bottom of the sand trap; then, when an engine is maintained, the bottom of the sand trap is detached to be cleaned, and after cleaning is finished, the bottom of the sand trap is installed, and cooling liquid is added into the engine. The engine cooling system is low in energy consumption, easy and convenient to disassemble and maintain, simple in structure, low in cost and easy to maintain.

The invention discloses a biomass gasification extract liquid cooling device. The biomass gasification extract liquid cooling device comprises cooling pipes and a cooling fan. Each cooling pipe comprises a motor, an outer pipe with fins, a middle threaded rod, a threaded push plate for cleaning tar, a bearing, a fixed end socket and the like, wherein the threaded push plate is matched with the middle threaded rod through a screw pair; and the motor rotates to drive the cleaning plate to axially move so as to periodically clean tar accumulated in the pipe and guarantee the heat exchange effect. The cooling fan is arranged below the cooling pipes. Heat of the cooling pipes is taken away through air blasting, and accordingly extract liquid is cooled. By adopting the biomass gasification extract liquid cooling device, the problem that the heat exchange effect is reduced through a traditional indirect cooling method due to tar accumulated in pipelines is solved; and the environmental protection problem that VOC generated in the air by a direct cooling tower exceeds the standard is solved as well.

The invention discloses a dust suppression material as well as a preparation method and application thereof, relates to the field of dust suppression, and aims to solve the technical problem that an existing dust suppression material in the prior art cannot meet the dust content requirement of a mine. The dust suppression material provided by the embodiment of the invention is prepared according to the following formula: the formula at least comprises the following components in parts by weight: 60-90 parts of a cementing material; 18 to 35 parts of an adhesive; 1 to 8 parts of an accelerator; 2-5 parts of a water reducing agent; 8 to 15 parts of a water-retaining agent; 21 to 43 parts of a wetting agent; the cementing material is a combination of one or more of sulphoaluminate cement, Portland cement and aluminoferrite cement in any proportion; the accelerator is sodium metaaluminate; the water reducing agent is a polycarboxylic acid water reducing agent; the wetting agent is a surfactant. The dust suppression material is used for treating mine coal dust.

The invention discloses a COB (Chip On Board) light source and a preparation process thereof. The COB light source is characterized by comprising a heat dissipation substrate (1), wherein a plurality of LED (Light Emitting Diode) chips (2) are arranged on the heat dissipation substrate (1), a circle of enclosure (3) is arranged outside the plurality of LED chips (2), and the enclosure (3) is connected with the upper surface of the heat dissipation substrate (1); an electrode (7) is arranged inside the enclosure (3); the LED chips (2) are connected with the electrode (7) by a gold thread (8); a hemispherical cured silica gel (6) is wrapped outside the LED chips (2); and a layer of fluorescent powder (5) is uniformly deposited outside the hemispherical cured silica gel (6). According to the COB light source and the preparation process thereof, the fluorescent powder around the LED chips is distributed uniformly, so the light distribution in each direction is uniform; the process is simple, the cost is low, the emission angle is large, the lighting effect is high, the color temperature consistency of the light source is good, and the product quality consistency is good.

The invention provides a goods taking device for an unmanned supermarket and a goods taking method. The goods taking device comprises a bracket, a horizontal moving mechanism, a linear moving mechanism, a goods taking mechanism and a controller, wherein the linear moving mechanism is vertically arranged, the upper and lower ends thereof are in sliding connection with the bracket; the goods takingmechanism is in transmission connection with the linear moving mechanism; the linear moving mechanism drives the goods taking mechanism to move up and down; the horizontal moving mechanism is arrangedon the bracket, and is in transmission connection with the upper end and the lower end of the linear moving mechanism; the horizontal moving mechanism drives the linear moving mechanism and the goodstaking mechanism to move on the bracket; a moving track of the linear moving mechanism on the horizontal plane is annular; the horizontal moving mechanism, the linear moving mechanism and the goods taking mechanism are electrically connected with the controller; and the controller is in communication connection with a server side. The goods taking device for the unmanned supermarket and the goodstaking method provided by the invention guarantee that settlement of delivered goods is completed, shorten the goods taking time, and improve the goods taking efficiency.