304 results about "Dust explosion" patented technology

The invention discloses a CFD-based dust explosion calculation method, and particularly relates to the technical field of dust explosion risk assessment. Firstly, initial dust parameters of a target scene are obtained, then a three-dimensional computational domain is established in combination with a geometric structure, ventilation conditions and obstacle distribution, and a dust deposition area is marked; constructing a gas-solid phase coupled dust explosion solving equation set in the CFD framework; outputting time sequence data of pressure, temperature, speed and dust concentration in the whole explosion process, and generating a risk grade distribution diagram based on the maximum explosion pressure and flame coverage time; according to the invention, the propagation and damage process of dust explosion can be accurately reproduced, the simulation precision and efficiency are improved, and the evaluation result can directly guide protection design and safety management.

The invention discloses dust removal equipment for dust explosion prevention and a dust removal method thereof, and relates to the field of dust removal equipment.The dust removal equipment comprises a dust removal box, a plurality of dust removal cloth bags in the dust removal box and a treatment mechanism for dust explosion prevention, the treatment mechanism is composed of a gas mixing assembly, a scraping assembly and a vibration assembly, and a filter bag top frame is connected with a vibration pipe frame through the vibration assembly; the gas mixing assembly is communicated with the dust removal box through a gas inlet pipe, the gas mixing assembly is used for mixing dusty gas and inert gas and preliminarily removing large-particle dust, and the scraping assembly is arranged below the gas mixing assembly and scrapes the filtered large-particle dust; and the vibration assembly is used for periodically vibrating the dust removal cloth bag after the scraping assembly is detached so as to remove fine dust attached to the inner wall of the dust removal cloth bag. Inert gas is introduced and fully mixed before entering the dust removal box, and primary large-particle dust is filtered, so that the oxygen concentration is reduced, and dust explosion is effectively prevented.

The invention discloses an integrated thermal management system for an explosion-proof charger, and relates to the technical field of chargers. Comprising the following steps: S100, three-dimensional thermal field modeling: acquiring a heat source point cloud by using a laser radar and a temperature sensor array, and constructing a three-dimensional thermal management model in combination with finite element analysis; the liquid cooling pipeline layout is optimized through three-dimensional thermal field modeling (the error of heat flow density uniformity is smaller than or equal to 10%), the integrated design of a ZL114A aluminum alloy shell and a micro-channel liquid cooling plate (the thermal resistance is reduced by 40%) is combined, a metal sealing structure of an IP68 protection grade and ExdIICT6 anti-explosion certification are matched, safe heat dissipation of the power device with the temperature smaller than or equal to 85 DEG C is achieved in the wide-temperature environment of-20 DEG C to 60 DEG C and the explosive environment of gas dust, and the safety of the power device with the temperature smaller than or equal to 85 DEG C is achieved. And meanwhile, the liquid cooling medium is intelligently managed through the conductivity sensor and the ion exchange resin filtering device, so that equipment faults caused by pollution are avoided.

The invention provides a dust explosion-proof early warning method and system, and relates to the technical field of safety monitoring and early warning, and the method comprises the steps: collecting and standardizing the multi-source data of a dust movement track, an airflow field and electrostatic potential distribution, calculating a vortex intensity index and a dust gathering trend coefficient, and constructing a multilayer neural network electrostatic coupling effect model, and nonlinear coupling mapping of dust concentration, electrostatic field intensity and vortex intensity is realized. And when the danger increment output by the model and the growth rate of the dust gathering trend coefficient exceed a preset threshold value, triggering dust explosion-proof early warning. Therefore, the risk change under the action of the electrostatic field can be detected, the recognition capability of abnormal working conditions and a coupling mechanism is remarkably improved, and the safety control level is greatly improved through early-stage accurate early warning and intelligent disposal of dust explosion hidden dangers.

The invention relates to the technical field of heavy calcium carbonate production and conveying, in particular to a heavy calcium carbonate production conveying frame. The invention provides a heavy calcium carbonate production conveying frame capable of preventing dust from flying. A heavy calcium carbonate production conveying frame comprises a supporting frame, a conveying assembly is installed on the supporting frame, a material blocking plate is fixedly connected to the surface of the conveying portion of the conveying assembly, the supporting frame is fixedly connected with a protective cover, the protective cover is connected with a feeding barrel, and a spiral feeding paddle is rotationally connected into the feeding barrel. According to the invention, the primarily crushed heavy calcium carbonate raw material is conveyed through the spiral feeding paddle, the falling speed of the crushed raw material can be slowed down, and the impact force during falling can be reduced, so that the dust flying caused by large impact force during falling can be avoided, the dust dissipation can be avoided, the dust density can be reduced, and the production efficiency can be improved. The risk of dust explosion is avoided, workers can be prevented from inhaling escaping dust, and the health of the workers is guaranteed.

The invention discloses a coal storage and transportation intelligent management method and system, relates to the technical field of intelligent management systems, and aims to solve the problems of lack of environment monitoring, scheduling decision lag, extensive safety response and serious data island in the prior art. The method comprises the following steps: collecting the physical state, environmental parameters and operation behavior data of a coal storage yard in real time through a distributed sensor network; constructing a three-dimensional dynamic digital twinborn model and inputting the model into a time sequence neural network to predict the risk of spontaneous combustion, collapse or dust explosion in the future; and generating a dynamic scheduling instruction in combination with the task priority and the equipment state, and triggering a multi-level security response mechanism. The system comprises a sensor network module, a data fusion modeling module, a risk prediction module, a scheduling optimization module, and a closed-loop control and safety response module. According to the scheme, safety early warning preposition, scheduling decision intelligent optimization and resource energy efficiency collaborative improvement in the storage and transportation process are achieved, and the response capability and operation reliability of the coal supply chain are remarkably enhanced.

The invention relates to the technical field of dust combustion, and provides a dust explosion combustion experiment device in order to solve the problems that an existing dust explosion combustion experiment device is insufficient in parameter control precision, and an experiment multi-focus single variable lacks a dust removing mechanism and a safety protection measure, and the dust explosion combustion experiment device comprises an experiment table which is provided with a power chamber and an equipment chamber; one side of the experiment table is hinged with an access door, two sides of the top of the experiment table are provided with conveying main pipes extending to the equipment chamber, a power supply assembly is arranged in the electric power chamber; the protective shell assembly comprises an outer shell and an inner shell; a plurality of exhaust pipes are arranged at the top of the inner shell; the dust generation assembly comprises a plurality of dust storage tanks and an air compressor; the ignition control assembly comprises a pulse igniter, a flame detection feedback circuit and an ignition head; the environment adjusting assembly comprises a box body, an oxygen tank and a humidifier, wherein the oxygen tank and the humidifier are arranged in the box body. The device has the advantages that the dust concentration is accurately regulated and controlled, the environmental parameters are dynamically coupled and controlled, dust residues are rapidly removed, and the experiment safety is high.

The invention discloses a dust explosion dynamic blocking method based on multi-modal data fusion. The method comprises the following steps: S1, constructing five core accident trees; s2, collecting multi-source data of dust explosion in real time and preprocessing the multi-source data, and extracting a multi-dimensional feature vector containing temporal and spatial variation features; s3, converting the multi-dimensional feature vector into a real-time state vector of five core accident trees through an event activation rule, and completing multi-source data fusion; s4, according to the real-time state vector, calculating a top event probability of each accident tree by using a Monte Carlo simulation method, and then obtaining an accident tree dynamic coupling risk value through multi-tree coupling analysis; s5, according to the dynamic coupling risk value, using a spatial interpolation method and voxelization processing to obtain a normalized risk value, and generating a dynamic risk thermodynamic diagram; and S6, according to the risk value of each area in the dynamic risk thermodynamic diagram, determining the risk level of dust explosion, then carrying out multi-level interlocking control, and triggering a corresponding blocking strategy to realize dynamic blocking.

The utility model discloses a dust explosion-proof monitoring pre-control device of a cigarette dust-removing pneumatic conveying system, and relates to the technical field of dust explosion prevention of cigarette production equipment. Explosion-proof detection mechanisms such as a temperature sensor, a pressure sensor and an electrostatic spark detector, and control execution mechanisms such as an extinguishing and cooling device, a pressure relief control valve and a pipeline blocking valve device are arranged on the dust removal branch pipe and the main pipe, and are connected with a centralized control device; real-time monitoring and pre-control of temperature, pressure and electrostatic sparks of the cigarette dust in the conveying process are achieved. When abnormal conditions are detected, sound and light alarms can be given out in time, measures such as water spraying cooling, pressure relief and pipeline blocking are taken, dust explosion is effectively prevented and controlled, and the safety of cigarette production equipment and personnel is protected. Meanwhile, by arranging the one-way explosion-proof device, it is ensured that when the dust removal equipment explodes, impact airflow cannot affect an upstream conveying pipeline and equipment, and the safety of the system is further enhanced.

The invention discloses an experimental device and an experimental method for gas / dust explosion flame-shock wave superposition coupling effect and combustible medium explosion transition induced by gas / dust explosion flame-shock wave superposition coupling effect under multi-parameter influence. Comprising a visual explosion system, a gas leakage diffusion system, a powder leakage diffusion system, an ignition system, a gas supply system, a powder spraying system, a discharge system, a displacement regulation and control system, a data acquisition system, a synchronous controller and a program control and data acquisition system. According to the experimental device and the experimental method for the gas / dust burning flame-shock wave superposition coupling effect under the influence of the multiple parameters and the induced combustible medium burning explosion transition thereof, the action processes of mutual impact, superposition, coupling and the like of detonation / detonation head-on flame-shock wave under the multiple working condition parameters can be realized; and the experimental study on the process of inducing the leakage diffusion combustible medium explosion transition and the critical condition thereof fills the technical blank of the study on the explosion flame-shock wave coupling effect process and the secondary disaster evolution mechanism induced under the influence of multiple parameters.

The utility model discloses a wet dust removal box which comprises a box body, a sedimentation tank, a dust feeding pipe, an exhaust fan and a plurality of dust adsorption components, a dust removal cavity is formed in the box body; the sedimentation tank is arranged in the dust removal cavity and is filled with water; one end of the dust feeding pipe is located outside the box body, the other end of the dust feeding pipe is located in the dust removal cavity and at least partially extends into water in the sedimentation tank, and wind dust to be treated enters the sedimentation tank through the dust feeding pipe; the exhaust fan is arranged on the box body and is used for extracting air in the dust removal cavity outwards; the dust adsorption assemblies are arranged in the dust removal cavity at intervals, are positioned above the sedimentation tank and are used for adsorbing dust overflowing from the sedimentation tank; by means of the structure, wind dust can be treated in a water adsorption mode, wet dust removal is achieved, the dust removal effect and the dust removal efficiency are improved, the danger of dust explosion is eradicated, and very good practicability is achieved.

The invention discloses a metal dust explosion risk comprehensive index early warning method and system, and particularly relates to the technical field of metal dust. The method comprises the following steps: standardizing real-time dust environment data collected in a working site and standard dust data, generating a feature vector, calculating similarity, and identifying a potential abnormal state; processing temperature deviation characteristics and charge concentration fluctuation characteristics are further extracted, a multi-dimensional risk assessment model is constructed, a metal dust explosion risk comprehensive index is calculated by using a polynomial regression algorithm and is compared with a gradient risk threshold value, and multi-stage early warning signal triggering and linkage response control are realized; the method has a self-adaptive recognition capability on a novel or unknown dust state, the accuracy and response timeliness of risk early warning are remarkably improved, and the intrinsic safety guarantee capability of the system under a complex working condition is enhanced.

The invention discloses a dust explosion flame free radical testing system and a testing method, belongs to the technical field of dust explosion testing, and solves the problem that existing testing equipment cannot realize visual testing of combustion flame free radicals at the initial stage of dust explosion ignition and in the development process. According to the solution, the test system comprises an explosion generation assembly used for generating single-side open type dust cloud explosion, an optical observation assembly used for observing flame free radicals, a control system, a computer and an air compressor, and semi-open type dust cloud is formed through the explosion generation assembly and is ignited and detonated; images of different free radicals changing along with flame are collected through the optical observation assembly, and visual observation, recording and analysis are carried out through the computer. The system has the advantages of being high in functionality, integrated in system, easy to operate and safe and reliable in experiment process and is suitable for various kinds of combustible dust, collected data can promote dust explosion mechanism research, and data support is provided for development of dust explosion optical early warning protection measures.

The invention relates to a dust explosion risk analysis experimental device for a non-closed bag-type dust collector. The dust explosion risk analysis experimental device comprises an air injection base, a vacuum pump, an air storage tank, an electric spark generator and a discharge electrode. Dust explosion can be completed in an open space, so that the damage to a cloth bag and the surrounding environment can be researched when dust of the bag-type dust collector exposed in the air explodes, and meanwhile, the dust explosion test device has the characteristics of simplicity and convenience in operation, safety and reliability.

A positive and negative pressure integrated dust removal device for a dust explosion area is provided with a dust hood, an exhaust fan, a negative pressure air duct, a positive pressure blowing pipe, a positive pressure comb-shaped blowing opening, a comb-shaped part arranged on the positive pressure comb-shaped blowing opening and a dust filter bag. According to the dust collection device, the exhaust fan is arranged to extract air in the first cavity, so that negative pressure is formed in the negative pressure air duct, dust is sucked, the comb-shaped part guides air in the positive pressure air blowing pipe to face airflow blown out of the positive pressure comb-shaped air blowing opening, and the air in the negative pressure air blowing pipe is blown out of the negative pressure comb-shaped air blowing opening. The dust suction hood is arranged in the second cavity, so that dust in the opening is blown by airflow and limited in the second cavity by the dust suction hood, an exhaust fan is matched to extract the airflow in the negative-pressure air suction pipe, and the dust is sucked into the dust filter bag along the negative-pressure air suction pipe, so that the suction force at the inlet end of the negative-pressure air suction pipe is improved, and the dust in the covering area of the opening is removed.

The invention discloses raw material grinding equipment for preparing dry powder fracturing fluid in the technical field of dry powder fracturing fluid processing, which comprises a pre-crusher and a gas mill, the lower end of the pre-crusher is connected with a spiral feeding pipe, the spiral feeding pipe can guide pre-crushed materials into the gas mill, a separator is arranged between the pre-crusher and the gas mill, and the separator is connected with the pre-crusher. A flow guide assembly is arranged among the pre-crusher, the air mill and the separator and comprises an air flow adjusting pipe, and the air flow adjusting pipe is located between the air mill and the separator; the heat dissipation pipe group penetrates through the pre-crushing machine, and gas in the separator can enter the pre-crushing machine through the heat dissipation pipe group; according to the dust removal device for the gas mill, low-temperature gas guided out of the gas mill is guided into the pre-crushing machine for heat dissipation in a speed reduction mode, cold energy waste caused by direct discharge of the low-temperature gas is avoided, dust in materials entering the gas mill is prevented from being brought away, and therefore the possibility of dust explosion of the gas mill is reduced.

The invention belongs to the technical field of dust removal equipment for textile workshops, particularly relates to high-efficiency dust removal equipment for textile workshops, and aims to solve the problems that dust attached to a dust removal assembly cannot be thoroughly removed and effective dust removal measures are lacked due to the fact that frequent shutdown is needed for cleaning in the prior art. The equipment is provided with two sets of dust removal assemblies which can be alternately used, exchange is achieved through a switching structure, in a removing structure, a reciprocating lead screw drives a lifting plate to move, air in the lifting plate is sprayed out through a hollow pipe and an air outlet disc, and the reciprocating lead screw further drives the hollow pipe to rotate and is matched with an arc-shaped sealing plate to form pulse airflow, so that the dust removal assemblies are comprehensively cleaned; the dust reduction structure injects filtered air into the water tank for humidification and then is used for removing dust, so that the dust is rapidly reduced, and the equipment can improve the dust removal efficiency, avoid frequent shutdown of the equipment, effectively remove the dust, reduce the risk of dust explosion and guarantee the production safety of a textile workshop.

The invention discloses a dust explosion risk prediction method, system, device and program, and relates to the technical field of industrial safety and disaster prevention and control, and the method comprises the steps: obtaining spectral data corresponding to time-space coordinates in a to-be-detected region; the spectral data comprises wavelength and intensity; elements contained in the dust and chemical concentrations of the elements are obtained based on the element recognition model and the spectral data; reconstructing a three-dimensional concentration field to obtain the spatial concentration of each element in voxels; and performing explosion risk dynamic coupling based on the elements contained in the dust, the chemical concentrations of the elements and the three-dimensional concentration field to obtain an explosion probability index. Through the treatment scheme disclosed by the invention, the dust explosion risk can be predicted in advance, small-range accurate explosion suppression can be realized, the safety is improved, and the explosion suppression cost is reduced.

A dust explosion detection early warning device disclosed by the present invention comprises a rapid mounting seat, a mounting block, a dust treatment device, a rotating rod and a dust concentration detection unit, the lower end of the dust treatment device is fixedly connected with a warning indicator, the middle part of the upper end of the dust treatment device is fixedly connected with the mounting block, and the mounting block is detachably connected to the middle part of the lower end of the rapid mounting seat. A flange plate is fixedly connected to the upper end of the quick mounting seat, rotating rods are uniformly arranged on the periphery of the dust treatment device, one end of each rotating rod is rotationally connected to a rotating seat, the rotating seats are fixedly connected to the edge of the lower end of the dust treatment device, and buckle seats are fixedly connected to the dust treatment device above the rotating seats; the upper middle portions of the rotating rods are connected into the buckle bases in a buckled mode, and the other ends of the rotating rods are fixedly connected with dust concentration detection units. The invention aims to provide the dust explosion detection early warning device which is convenient to disassemble and assemble, has multi-direction detection and is efficient in dust treatment.

The invention relates to the technical field of dust removal equipment, in particular to a multi-stage dust removal device for a grain dryer and a dust removal method.The multi-stage dust removal device comprises a shell, a water tank, a rotating shaft, a demisting cover, a demisting component, a bag-type dust remover, a sealing baffle, a triggering component, a switching rotating shaft, a stirring component, a pulse cylinder, a pulse piston and a pulse part; gas guided out of the dryer is introduced into the water tank for water cooling, water vapor is removed through the demisting cover and the demisting component, and the cooled and dehumidified gas is further subjected to fine dust removal through the bag-type dust collector and then is exhausted. The bag-type dust collector is communicated with the water tank after a certain dust weight is accumulated through the trigger component, pulse cleaning of the bag-type dust collector is realized through cooperation of the stirring component and the pulse piston, and the cleaned dust is discharged after being mixed and stirred with liquid in the water tank, so that the dust in flue gas is conveniently mixed and cleaned; the dust explosion risk caused by dust raising during cleaning is prevented.

The invention belongs to the technical field of dust explosion testing, and particularly relates to a dust explosion discharge testing device and method, the dust explosion discharge testing device comprises an explosion pipeline and a base, the top end of the explosion pipeline is provided with an end cover, the base is provided with a powder storage tank, the powder storage tank is internally provided with a mushroom-shaped nozzle, the mushroom-shaped nozzle is provided with a plurality of air holes, and the air holes are communicated with the explosion pipeline. A pressure sensor and an ignition electrode are installed on the side edge of the explosion pipeline. When the dust explosion release test is carried out, firstly, to-be-tested powder is placed in the powder storage tank, then the base is sequentially covered with the sealing rubber mat, the explosion pipeline, the explosion release film and the end cover, then compressed air in the air storage tank is controlled to be conveyed into the explosion pipeline through the mushroom-shaped nozzle, and the compressed air is sprayed into the powder storage tank through the air hole; and at the moment, sparks of the started ignition electrode can explode instantly when encountering dust cloud, and the explosion venting film on the top is broken to release pressure and flames.

The invention relates to the technical field of flour dust falling, in particular to flour mill dust falling equipment and a using method thereof.The flour mill dust falling equipment comprises a middle shell, dust falling boxes are fixedly connected to the two sides of the middle shell, and dust collection bins used for alternately collecting dust and compressing are arranged on the surfaces of the outer sides of the dust falling boxes; the top surface of the dust falling box is provided with a dust falling nozzle for increasing the weight of sucked dust mist, the inner side surface of the middle shell is provided with a driven trigger piece for synchronizing the movement process of each component, and the outer side surface of the dust falling box is provided with a dust collection baffle for guiding airflow to enhance the adsorption range; according to the dust falling device for the flourmill, suspended dust is rapidly converted into settleable particles through a closed-loop process of double-side alternate dust collection, compression granulation and synchronous spraying weight increment in function, and the suspension condition required by dust explosion is cut off from the source; the whole process is closed, secondary diffusion is avoided, additional pump valves and electric control elements are not needed, energy consumption is low, and fault points are few.

The utility model discloses an improved gas dust explosion pipeline testing device in the technical field of gas dust explosion testing, which comprises an explosion ignition assembly and a data acquisition control assembly, the other side of the explosion ignition assembly is respectively provided with a dust spraying assembly and a product collecting assembly, and the product collecting assembly comprises a closed control valve. The side, away from the explosion ignition assembly, of the closed control valve is connected with a gas taking control valve and a vacuumizing control valve, the end, away from the closed control valve, of the gas taking control valve is sequentially connected with a dust collector and an air bag, and the end, away from the closed control valve, of the vacuumizing control valve is connected with a vacuum pump. According to the utility model, the closed control valve, the gas taking control valve, the dust collector, the air bag, the vacuumizing control valve and the vacuum pump are arranged in a matched manner, so that gas can be collected by the air bag, powder can be collected by the dust collector, the problem that explosion gas and powder are difficult to automatically collect is solved, and the content of experimental research is widened.

The invention discloses a fully-sealed dust explosion-proof motor, and relates to the technical field of motor sealing, the fully-sealed dust explosion-proof motor comprises an explosion-proof motor main body, the inner wall of the explosion-proof motor main body is rotatably provided with a circular shaft, the right side of the circular shaft is fixedly provided with fan blades, and the fan blades wind in gas to cool the interior of the explosion-proof motor main body. A rear groove cover is arranged on the right side of the explosion-proof motor body, a machine cover is fixed to the right side of the rear groove cover, a round opening is formed in the middle of the right side of the machine cover, a square shell is fixed to the right side of the machine cover, an air inlet pipe penetrates through the top face of the square shell and is fixed to the top face of the square shell, and a T-shaped frame is fixed to the middle of the bottom face of the square shell. According to the invention, the round opening of the hood is sealed through the rubber ring, so that the situation that the explosion-proof motor main body needs to suspend in a dusty environment and the operation effect of the explosion-proof motor main body is not good is avoided.

The invention relates to the technical field of mine lighting, in particular to an intelligent mining intrinsically safe LED lighting lamp strip and a lighting system.The lamp strip comprises an insulation assembly, a plug-in assembly and a lighting assembly, and the system comprises a production judgment module, a light attenuation judgment module, a lighting regulation and control module, a regulation and control detection module, a shadow judgment module and a shadow compensation module; the system predicts a high-dust working condition through vibration analysis and evaluates light attenuation by fusing dust concentration and coal rock absorbance; regulating and controlling the brightness and spectrum of the lamp strip according to the evaluation result; the regulation and control effect is verified through closed-loop detection; identifying a dynamic shadow area based on the equipment pose and the light field distribution; and finally, in combination with the gas concentration safety constraint, performing safety-first local compensation or brightness-first overall brightening on the shadow area. The problems that instantaneous light attenuation caused by cooperation of dust outbreak at the moment of cutting and strong light absorption of a coal wall cannot be effectively handled, and dynamic shielding shadow caused by movement of a huge machine body of mining equipment cannot be effectively handled are solved.

The utility model relates to a dust explosion protection system for a chemical workshop. The dust explosion protection system comprises a dust removal assembly and a spraying assembly, the dust removal assembly comprises a dust removal box, an air inlet pipe and an air outlet pipe are connected to the dust removal box, a filter cloth frame and a screen plate are installed on the inner wall of the dust removal box, a plurality of pieces of filter cloth are connected between the filter cloth frame and the screen plate, an exhaust fan is installed in the dust removal box, a transmission rod penetrates through the center of the exhaust fan, and a driving motor is installed on the outer side of the dust removal box; a worm is in butt joint with the driving motor, a turbine is meshed with the worm, and the turbine is in butt joint with the transmission rod; the spraying assembly comprises a piston pump, a water inlet pipe and a water outlet pipe are in butt joint with the piston pump, the piston pump comprises a pump shell, a rotary disc is installed in the pump shell, a connecting rod is hinged to the rotary disc, a piston is hinged to the connecting rod, a rotary shaft penetrates through the center of the rotary disc, a first gear is in butt joint with the rotary shaft, a second gear is meshed with the first gear, and the second gear is in butt joint with a worm. And the driving motor can drive the piston pump to operate while driving the draft fan to operate.

The utility model discloses a dust recovery device for nonmetallic mineral product manufacturing, which comprises a material collecting bin and a cleaning part, the bottom end of the material collecting bin is provided with the cleaning part, the top end of the material collecting bin is fixedly connected with a feeding pipe, one side of the outer wall of the material collecting bin is fixedly connected with a discharging pipe, and the other end of the discharging pipe is fixedly connected with a negative pressure device. According to the dust recovery device for nonmetallic mineral product manufacturing, through cooperation of a material collecting bin, a cleaning part, a feeding pipe, a discharging pipe, a negative pressure device, a filter element and a cleaning mechanism, a transverse barrel and a vertical plate can rotate, two transverse rods revolve around the vertical plate as the center, cleaning brushes arranged on the outer walls of the transverse rods can clean the outer wall of the filter element, and the dust recovery effect is improved. According to the cleaning device, a negative pressure device with a blowback function is not needed to be used for achieving cleaning, the summer cost of the device is reduced, in addition, the dust explosion phenomenon caused by blowback does not need to be worried about in the cleaning process, secondary pollution to the surrounding environment cannot be caused, and the practical performance is enhanced.

The present application relates to the technical field of high-moisture organic solid waste drying, and particularly relates to a drying method of high-moisture organic solid waste. The technical scheme can provide carbon source for target bacteria, support water diffusion channels between solid waste blocks formed by high-moisture organic solid waste, diffuse non-bound water surrounded by multiple solid waste blocks from the water diffusion channels, degrade organic matters in the high-moisture organic solid waste, increase porosity and specific surface area of the high-moisture organic solid waste, and keep the temperature of the sunlight shed and the temperature of the target mixture in the drying process below 50 DEG C, which can ensure good living conditions of the target bacteria and reduce the risk of dust explosion caused by the increase of dust concentration in the late drying period due to the introduction of target organic matter. The target mixture receives sunlight radiation, continuously turns over and is driven by a fan, so as to realize drying of the high-moisture organic solid waste.

The invention relates to a construction waste crushing bin dust explosion suppression device which comprises a crushing bin body, a control panel arranged in the center of the front end face of the crushing bin body, an upper cover arranged in the center of the upper end face of the crushing bin body, a feeding hopper arranged in the center of the upper end face of the upper cover, and a pressure relief structure arranged on the upper portion of the center of one side wall of the crushing bin body. An explosion suppression spraying structure is arranged on the lower portion of the center of one side wall of the crushing bin body, an explosion suppression structure is arranged on one side wall of the crushing bin body at the upper end of the explosion suppression spraying structure, and a detection structure is arranged in the center of the interior of the crushing bin body. The explosion suppression device has the beneficial effects that when explosion danger occurs, high-pressure gas and part of dust can be quickly discharged through the pressure relief structure to reduce the pressure in the bin, explosion suppression powder is released through the explosion suppression structure to suppress the combustion reaction after flames are detected, and the explosion suppression spraying structure adsorbs dust, reduces the temperature and inhibits flame spreading by spraying water mist; and the explosion suppression effect and the safety are improved.

The invention relates to the technical field of dust explosion prevention in the textile industry, in particular to a dust explosion prevention method and system in the textile industry and a storage medium. The explosion-proof method comprises the steps that a bus communication architecture based on a two-wire system power line carrier is constructed, a multi-host communication mode adopting a private protocol is established between a controller and a plurality of detection probes, and a message structure of the private protocol comprises a function code field, a number field, a data field and a CRC verification field, wherein the function code field definition comprises 01H alarm coding, 02H parameter modification coding and 03H heartbeat request coding. According to the invention, a multi-host communication architecture based on a private protocol is constructed, dynamic distribution of bus control right and dust flow feature detection are deeply coupled, and a zero-latency master-slave switching mechanism when an alarm event is triggered is realized.