100 results about "Production area" patented technology

The invention discloses a coal mine production risk assessment model construction method based on intelligent flexible production, and relates to the technical field of coal mine production risk assessment. According to the coal mine production risk assessment model construction method based on intelligent flexible production, a historical state data set including environment, structure, equipment and personnel is constructed, various reference values are combined, the mean value, fluctuation and range characteristics are comprehensively analyzed, a deviation judgment mechanism is introduced, hidden risks in the critical early stage are effectively identified, and the risk assessment accuracy is improved. The method breaks through the static judgment limitation that a traditional model only depends on a current threshold value, and extracts a multi-dimensional risk factor in a current state by obtaining historical environment, structure, equipment and personnel state data of a coal mine production area and combining corresponding reference data and risk coefficients. Finally, a risk assessment model based on linkage of risk factors and risk coefficients is constructed, dynamic risk identification and comprehensive judgment of a coal mine production area are realized, and the accuracy, adaptability and response efficiency of an assessment result are improved.

The invention relates to the field of collaborative management scheduling, in particular to a digital supply chain collaborative scheduling method and system based on digital twinning, and the method comprises the steps: calculating the estimated stock of any production area; calculating an influence coefficient of any production area; obtaining a plurality of optional transportation paths of any production area, calculating the transportation risk of any production area in any optional transportation path based on the influence coefficient and the transportation loss rate, and obtaining the optimal transportation path of any production area; and obtaining an estimated supply quantity of any production area according to the estimated stock quantity, calculating a first product of the estimated supply quantity and the normalized transportation risk, taking an accumulated value of the first products of all the production areas as a transportation cost function, responding to a maximum value of the transportation cost function, obtaining an actual supply quantity of any production area, and completing collaborative scheduling. According to the technical scheme of the invention, the efficiency and precision of cooperative scheduling can be improved.

The invention provides a method for controlling an operation vehicle and a control system for mining mineral resources, and relates to the field of vehicle control, the field of unmanned driving and the field of intelligent mines. The method comprises the following steps: receiving resource demand information for producing a target mineral product, wherein the resource demand information represents respective corresponding demands of a plurality of target category resources required by a specified production area; task arrangement is carried out according to the demand quantity corresponding to the target category resources and the resource loading information of the candidate transport vehicles, a transport task related to the target category resources is obtained, and the transport task indicates that the transport vehicles loading the target category resources in the multiple candidate transport vehicles travel to a designated production area. The proportional relation among the multiple target loading capacities and the demand quantity proportion meet a similarity condition; and according to the transportation task and the charging demand information of the specified charging position in the specified production area for the target category resources, the transportation vehicle is controlled to run to the specified charging position to unload the target category resources.

This invention belongs to the field of power plant information technology and safety supervision, and discloses a method, system, equipment, and readable storage medium for identifying unlicensed operations in thermal power plants. The method for identifying unlicensed operations in thermal power plants includes the following steps: acquiring monitoring image data of the thermal power plant production area through cameras installed in the production area, inputting the data into a pre-trained behavior detection model for detection, and obtaining the probability P of personnel operation behavior appearing in the monitoring image data. 作业 And the corresponding location POS where the operation occurs; the probability P 作业 The results of comparing the results with a preset threshold P0 are used to identify unlicensed operations in thermal power plants. This invention can identify and monitor unlicensed operations, unauthorized expansion of work areas, and other violations, significantly improving the real-time performance, accuracy, and coverage of monitoring.

The invention relates to the technical field of gas control, and discloses a coal-pillar-free self-formed roadway 110 construction method well up-down integrated area gas control method which comprises the following steps: S1, dividing a coal resource into a planning area, a preparation area and a production area according to the time of mine construction or mining operation of the coal resource; s2, gas pre-extraction treatment on the well in the planning area; s3, advanced treatment of underground gas in the preparation area; s4, precise advanced treatment of underground gas of the working face is carried out; and S5, working face stoping. According to the method, the above-well drilling pre-extraction technology is utilized, the above-well extraction purpose of replacing space with time is achieved, accurate advanced underground extraction is conducted on gas of the continuous working face through the coal-pillar-free self-formed roadway of the upper working face in the production area, and the underground extraction purpose of replacing time with space is achieved; the supporting pressure of the working face is reduced, the stress distribution rule is changed, the pressure difference between coal seam gas and roadway atmospheric pressure is reduced, and the crossheading gas emission amount is reduced.

The invention relates to a production area early warning method and device, computer equipment, a computer readable storage medium and a computer program product, and can be applied to the technical field of area early warning. The method comprises the following steps: receiving a unit starting instruction for a production area sent by an upper computer operating system; controlling a governor hydraulic control system in the production area to start a governor oil pump of the governor hydraulic control system according to the unit starting instruction; the governor oil pump is used for establishing pressure for a governor hydraulic system corresponding to the governor hydraulic control system; the pressure value of the speed regulator hydraulic system is obtained, and under the condition that the pressure value reaches a preset pressure threshold value, an opening instruction of an isolation valve of the speed regulator hydraulic system is generated; and opening the isolation valve according to the opening instruction of the isolation valve, and controlling an early warning device in the production area to perform early warning action. By adopting the method, the early warning efficiency of the production area can be improved.

The application discloses an energy-saving nitrogen production equipment and method with pressure swing adsorption function, and relates to the technical field of nitrogen production. The application comprises a nitrogen production tank, further comprises a partition disc and a top sealing disc fixedly installed in the nitrogen production tank, and a partition plate fixedly installed between the partition disc and the top sealing disc for partitioning the nitrogen production tank into a first nitrogen production area and a second nitrogen production area; the first nitrogen production area and the second nitrogen production area are both provided with a nitrogen production assembly; a pressure swing adsorption unit comprises a gas guiding assembly and a pressure increasing assembly; and an equalizing desorption unit comprises a gas storage assembly and a stamping assembly. The application has the advantages that the alternate operation of the first nitrogen production area and the second nitrogen production area can effectively improve the production capacity, the gas flow direction can be flexibly controlled during the nitrogen production, the oxygen and nitrogen separation effect is enhanced by self-pressurization, the gas production efficiency is improved, the residual pressure energy can be recycled and utilized to realize the equalization of the pressure of the first nitrogen production area and the second nitrogen production area, the discharge of the oxygen-rich tail gas is accelerated in the pressure relief stage, the operation energy consumption is effectively reduced, and the energy-saving effect is remarkable.

The utility model discloses an efficient and accurate-positioning packaging box conveying track line, belongs to the technical field of packaging box conveying devices, and solves the problems of high labor intensity, low production efficiency and potential safety hazards in the prior art. Comprising a rack, a feeding inlet and a discharging outlet are formed in one end of the rack in parallel, and a feeding conveying line and a discharging conveying line are arranged between a working platform at the other end of the rack and the feeding inlet and between the working platform at the other end of the rack and the discharging outlet respectively; a material taking transverse moving conveying mechanism and a finished product transverse moving conveying mechanism are arranged at the ends, close to the working platform, of the feeding conveying line and the discharging conveying line correspondingly, a feeding lifting stopper is arranged on one side of the material taking transverse moving conveying mechanism, and a discharging lifting stopper is arranged on one side of the finished product transverse moving conveying mechanism. And material box uncovering mechanisms are arranged on the two sides of the working platform correspondingly. The automatic material box conveying device is reasonable in design, compact in structure, capable of automatically conveying material boxes to a production area, low in labor intensity, accurate in positioning of material box conveying, convenient to operate, high in production efficiency and high in practicability.

The utility model relates to the technical field of monitoring camera shooting, and discloses a monitoring camera shooting device for a detonator production area, which comprises a monitoring main body, the lower surface of the monitoring main body is fixedly connected with a camera glass cover, the upper surface of the monitoring main body is fixedly connected with a fixed shaft, and the outer surface of the fixed shaft is rotatably connected with a rotary drum. The motor drives the second bevel gear to rotate, and the second bevel gear is meshed with the first bevel gear, so that the rotating drum is driven to rotate along the shaft, and the dust scraper hinged to the lower surface of the connecting frame is driven to rotate with the rotating drum as the shaft; and a microfiber cloth strip fixedly connected to the lower surface of the dust scraper is used for wiping the outer surface of the camera glass cover, compared with a traditional device, the camera glass cover is exposed in the air for a long time, stains can be attached to the surface of the camera glass cover, and therefore use of the monitoring camera device is affected. When wiping is not needed, the dust scraper is located on the rear portion of the monitoring camera device, and use of the monitoring camera device is not affected.

The application provides a composite structure ultrafiltration membrane assembly, which comprises a shell, a water outlet is arranged at the top of the shell, a liquid inlet is arranged at the bottom of the shell, the shell is divided into a filtering area and a gas floating area which are in communication from top to bottom by a first resin sealing layer, the filtering area is divided into a liquid production area and a membrane area from top to bottom by a second resin sealing layer, membrane filaments are arranged in the membrane area, one end of the membrane filaments is embedded in the second resin sealing layer, and the membrane filament holes are in communication with the liquid production area, a waste liquid outlet is arranged below the second resin sealing layer, the gas floating area is provided with fiber fillers, and a dissolved gas releaser is arranged at one end of the liquid inlet close to the inside of the shell. The ultrafiltration membrane assembly of the application efficiently combines the gas floating structure and the ultrafiltration structure, the series connection between the two parts can be directly realized in the membrane cavity, the liquid level balance, pressure increase and decrease and other control links of other process modes are reduced, and the ultrafiltration membrane assembly has the advantages of high water production efficiency and small energy consumption.

The utility model relates to a system for treating high-ammonia-nitrogen wastewater and recycling ammonia water resources by utilizing a low-temperature heat source, which comprises a steam stripping tower, a high-ammonia-nitrogen wastewater treatment device, a high-ammonia-nitrogen wastewater treatment device and a low-temperature heat source, the air blower is connected with the middle part of the steam stripping tower; the first heat exchanger exchanges heat with the material discharged from the bottom of the steam stripping tower through a production area low-grade heat source, and the material discharged from the bottom of the steam stripping tower after heat exchange flows back to the top of the steam stripping tower; a material discharged from the top of the steam stripping tower flows into the first spraying absorption tower from the bottom of the first spraying absorption tower; a material discharged from the top of the first spraying absorption tower flows into the second spraying absorption tower from the bottom of the second spraying absorption tower; a material discharged from the top of the second spraying absorption tower flows into the falling film absorption tower from the bottom of the falling film absorption tower. According to the utility model, a low-grade heat source is utilized, and the produced ammonia water can be used in a flue gas denitration process at a production end, so that the cost for ammonium salt treatment caused by acid absorption is avoided.

This application discloses a lithofacies analysis system and method based on a shale geological-mechanical coupled lithofacies classification system, relating to the field of shale lithofacies analysis. The system construction module determines the geological-mechanical coupled lithofacies classification system based on information data from the data acquisition module; the prediction module determines single-well lithofacies prediction information; the feedback adjustment module adjusts the single-well lithofacies prediction information based on set rock mechanics and geostress parameter ranges to obtain adjusted information; the three-dimensional model construction module uses a genetic algorithm to perform seismic attribute embedding and integrated inversion based on seismic attribute data and adjusted information, and uses a co-kriging method to construct a three-dimensional model of well-seismic co-modeling of geological-mechanical coupled lithofacies; the parameter model determination module uses a layer-control-facies dual-control method to control constraints and determine the heterogeneity of the geological-mechanical characteristics of shale layers in three-dimensional space, providing a basis for establishing production areas for the exploration and development of artificial oil and gas reservoirs.

The present application relates to the field of production transportation, and particularly relates to an intelligent food production management system, comprising: a region monitoring module, used to periodically detect the amount of tasks to be executed and the number of key task points of a target production region, so as to determine a production execution state; a region analysis module, used to determine a corresponding region analysis mode according to the production execution state; a first region setting module, used to determine the distribution state of each key task point according to the number of related key task points, and determine a set of each intensive task point and a key scheduling region of each discrete task point; a second region setting module, used to determine the key scheduling region according to the number of associated task routes and the task completion degree; and a device scheduling module, used to determine whether to perform task scheduling on a second type of execution vehicle according to the proportion of key route segments, and determine the task scheduling mode of a vehicle to be scheduled according to the proportion of a first type of execution vehicle; the present application improves the overall transportation efficiency in a food processing plant.

The utility model discloses a combination device for a storage tank nitrogen sealing system, which comprises a storage tank body, the top of the storage tank body is fixedly connected with a breather valve, the two sides of the top of the storage tank body are respectively and fixedly connected with a sealing mechanism, the interiors of the two sealing mechanisms are respectively and fixedly connected with a connecting pipeline, and one side of the connecting pipeline is fixedly connected with a nitrogen supply valve. One side of the nitrogen supply valve is fixedly connected with a pressure gauge pipeline, one side of the pressure gauge pipeline is fixedly connected with a filtering mechanism, one side of the filtering mechanism is fixedly connected with an inlet pipeline, one side of the other connecting pipeline is fixedly connected with a nitrogen discharge valve, and one side of the nitrogen discharge valve is fixedly connected with an outlet pipeline; some impurities such as solid particles, trace moisture and oil mist contained in nitrogen supplied by a gas source can be effectively removed, corrosion of the storage tank and related equipment can be prevented, meanwhile, the sealing mechanism prevents the nitrogen from leaking at the connector, it is ensured that liquid is sealed in the tank, and the service life of the storage tank is prolonged. Therefore, the safety of the whole production area and the stable operation of the whole system are ensured.

The invention relates to the technical field of industrial boilers, in particular to an intelligent data acquisition device and a data analysis system for an industrial boiler. An intelligent data acquisition device for an industrial boiler comprises a base, a support and a swing arm, the base is installed at the position close to a zinc pot, the support is fixedly installed on the base, the swing arm is horizontally arranged, and one end of the swing arm is rotationally installed on the support; the other end of the swing arm extends to a position above the zinc pot; a radar probe is installed at the end, away from the rotation center of the swing arm, of the swing arm. The radar probe is used for monitoring the surrounding environment so as to judge whether the zinc pot is in production or not according to the detection result. If the boiler is in production, the swing arm rotates the radar probe out of the production area, and at the moment, the outer radar probe does not collect data; if the boiler does not produce, the swing arm rotates the radar probe to a designated position (namely, the radar probe rotates to the position above the zinc pot), and then the radar probe begins to measure the liquid level height of the zinc pot for data acquisition.

The utility model discloses a large tonnage self -balancing steel -concrete structure pre -stressed prestress tension crossbeam belongs to building construction technical field, has solved the problem of the present pre -stressed steel -concrete prestressed steel beam because of the oil cylinder and the jack is bigger, and the steel quantity is high, makes the area of production occupies the ground. The utility model discloses two tensioning plates of opposite setting, two tensioning plate bottom fixed on the bottom plate, two tensioning plate both ends are equipped with side edge reinforcing plate respectively, and the bottom of side edge reinforcing plate is fixedly connected with the bottom plate, and a plurality of tensioning holes corresponding are equipped on two tensioning plates, and tensioning pipe is equipped between the tensioning hole corresponding, and a plurality of ground anchors are equipped on the bottom plate, and the ground anchor is fixed with the pouring pool ground. The utility model discloses simple structure, stable operation can be set up flexibly according to the need of the scene, effectively reduces the original pre -stressed steel -concrete prestressed steel beam production area, improves the performance of steel -concrete prestressed steel beam simultaneously, has very strong popularization.

The pump body conveying equipment comprises a vertical shaft assembly, a discharging opening is formed in one side of the bottom of the vertical shaft assembly, a conveying belt is connected to the discharging opening, a bearing platform and a lifting mechanism are installed in the vertical shaft assembly, and the lifting mechanism is used for driving the bearing platform to move in the vertical shaft assembly in the vertical direction. A feeding port is formed in the top of the vertical shaft assembly, a cover body covers the feeding port, an anti-rollover device is arranged between the bearing platform and the vertical shaft assembly, and when the pump body is placed on the top of the bearing platform, the anti-rollover device is used for preventing the bearing platform from rollover in the vertical shaft assembly. The bearing platform and the pump body are conveyed from the high position to the low position through the lifting mechanism, so that packaging of the rear end of the pump body and assembling of small parts can be completed in production workshops of different floors, occupied production area is reduced, meanwhile, rollover in the shaft assembly of the bearing platform is prevented by arranging the rollover prevention device, and production efficiency is improved. And the moving safety of the pump body in the vertical shaft assembly is greatly improved.

The invention relates to the technical field of oil-containing solid-liquid separation, and discloses a super-wetting modified coalescence material and a solid-liquid separation method for coupling multistage cyclone-polymerization filtration extraction by using the super-wetting modified coalescence material. The super-wetting modified coalescence material is prepared by taking a stainless steel honeycomb plate as a base material, carrying out degreasing and rust removal pretreatment and loading a fluorosilane / nano silicon dioxide composite modified layer, and has the advantages of outstanding hydrophobic and oleophylic characteristics, high corrosion resistance and high oil drop coalescence efficiency. The solid-liquid separation method based on the material adopts the process of raw material pretreatment, three-stage gradient cyclone separation, super-wetting coalescence separation and product collection and detection, and efficient separation of oil-water-solid three phases in oil-based rock debris is realized through the synergistic effect of cyclone centrifugal reinforcement and super-wetting surface coalescence. The method solves the problems of poor material corrosion resistance, incomplete oil drop separation, high energy consumption cost and the like in a traditional separation method, the oil recovery rate can reach 85% or above, and the method is suitable for large-scale treatment of oil-containing solid wastes such as oil-based rock debris in a shale gas production area.

Device for the additive manufacturing of a three-dimensional body (5) in a powder bed with a manufacturing area (1) which has a lowerable surface (2) on which the powder bed is arranged, and at least one squeegee (3) for conveying and uniformly distributing a powdered material on the surface (2), which is movable about a rotational axis (4) that is oriented perpendicular to the surface (2) of the powder bed, and a device (8) for performing a rotational movement of the at least one doctor blade (3) over the surface of the powder bed, and a device with which at least one energy beam is directed onto the surface of the powder bed and whose focal spot is movable in two dimensions, the length of the squeegee (3) corresponds at least to the greatest distance from the axis of rotation (4) to the edge of the manufacturing area (1), nozzles are formed on the squeegee (3) for applying the powdered material to the surface of the powder bed, and a device (7) for feeding powdered material into the at least one doctor blade (3) and to the nozzles is provided, characterized by the fact that the device (8) for carrying out this rotational movement is arranged such that the rotational movement takes place from the edge of the production area (1) and for this purpose, in the case of a production area (1) with a circular base area, a guide is arranged circumferentially on the outer edge of the production area (1) and above the surface of the powder bed and the at least one doctor blade (3) is arranged such that it is slidably mounted on two opposite points of the guide.

The invention discloses an underground safety evacuation facility for a car dumper room, the car dumper room comprises an underground part and an overground closed greenhouse covering the underground part, an underground operation space corresponding to a car dumper is arranged in the underground part, and a smoke-proof staircase is located on the outer side of the underground operation space. A smoke-proof front room is arranged between the smoke-proof staircase and the underground working space; the smoke-proof staircase and the smoke-proof front room are separated through a solid wall with a fireproof door, and the smoke-proof front room and the underground operation space are separated through a solid wall with a fireproof door. The smoke-proof staircase is communicated with an outdoor safety area through a horizontal conversion channel; and an air supply system is arranged in the smoke-proof front room, the smoke-proof staircase and / or the horizontal switching channel. According to the scheme, an evacuation path is physically isolated from a production area with high fire risk, a smokeless safe evacuation environment is provided for personnel, and the contradiction between the standard requirement that the first floor of an underground evacuation channel is directly communicated with the outside and the process environmental protection requirement that the ground large area is closed is solved.

The invention relates to the technical field of energy management, in particular to an energy management method and device based on carbon emission monitoring data, and the method comprises the steps: collecting the carbon emission monitoring data, energy consumption data and external energy data of each production region; establishing a carbon flow dynamic map of each production area according to the carbon emission monitoring data and the energy consumption data of each production area, and determining carbon flow characteristics of each production area; constructing a real-time energy weight according to the external energy data, and constructing a carbon energy correlation index of each production region by combining the real-time energy weight with the carbon flow characteristics of each production region; constructing an energy supply table of each production area based on the carbon energy correlation index and the carbon flow characteristics of each production area, and generating actual conveying energy of each production area; and a penalty coefficient is constructed based on the energy period supply amount, and the actual conveying energy of each production area is updated. According to the invention, the energy management efficiency under the low-carbon condition is effectively improved.

The invention relates to the technical field of industrial production safety, in particular to a hydraulic equipment production safety protection system which comprises a dust monitoring module, an explosion risk prediction module, an environment adjusting module, an execution module and an alarm module. Wherein the dust monitoring module is used for collecting metal dust concentration and component data in an operation area of hydraulic equipment; the explosion risk prediction module is used for predicting the explosion risk of dust and calculating a potential explosion risk level; the environment adjusting module is used for automatically adjusting environment conditions in the production area; the execution module is used for automatically adjusting the operation state of production equipment or starting emergency safety measures; and the alarm module is used for sending real-time alarm information to operators and safety management personnel. According to the invention, through comprehensive measures of real-time monitoring, risk prediction, automatic environment adjustment, instant alarm and the like, the safety and reliability of the industrial production environment are significantly improved, and the occurrence of dust explosion accidents is effectively prevented.

The utility model discloses a modular assembly type overhead floor cleaning device for a down filling place, and belongs to the field of special environment-friendly facilities for production areas. The frame modules are arranged one by one in the transverse direction and connected into a plurality of transverse columns in an array arrangement mode, the frame modules are arranged one by one in the longitudinal direction and connected into a plurality of longitudinal columns, and the frame modules are supported on a foundation terrace in the state that the frame modules are suspended on the foundation terrace of the down filling place during use; the upper part of the velvet dust and impurity gathering container is open, the velvet dust and impurity gathering container is supported on the frame module, the side wall of the velvet dust and impurity gathering container and the lower part of the velvet dust and impurity gathering container are provided with a dust suction pipeline matching hole for sucking out the velvet dust and impurity, and the dust suction pipeline matching hole is connected with a velvet dust and impurity suction device pipeline; the hollowed-out cover plate is matched with the opening in the upper portion of the fluff dust and impurity gathering container and communicated with a cavity of the fluff dust and impurity gathering container, and the surface of the hollowed-out cover plate forms a hollowed-out bedding treading plane relative to the foundation terrace. The device has the advantages that the cleanness of a down filling place is guaranteed, and pollution is avoided.

This invention discloses a method for monitoring the storage of hazardous chemicals in a production area, relating to the field of hazardous chemical storage technology. The method includes the following steps: S1, collecting the actual ambient temperature sequence of each grid in the production area; S2, determining the basic volatility coefficient, and generating risk characteristics for each grid at each time point based on the temperature sensitivity coefficient and environmental correction coefficient, as a risk characteristic sequence; S3, obtaining the predicted temperature value of the grid at the next time point. This invention is based on the first-order kinetic law of hazardous chemical volatilization, combined with corrections to actual grid parameters, and generates basic volatilization, temperature sensitivity, and environmental correction coefficients for parameters such as sealing and ventilation of each grid. Based on these parameters, a time-series risk characteristic sequence is generated, which is then fused with the temperature sequence for deep learning prediction, allowing for early detection of temperature change trends and reserving a time window for risk management, significantly improving storage safety.

Provided is hydrocarbon reservoir production system and method that employs a production monitoring system including a well production monitoring system to obtain well production data and gas characteristics of hydrocarbons produced by wells associated with a production region of the reservoir. The production monitoring system adapted to receive selection of modeling parameters, including a selected region and time period, and to generate a set of well performance data including a production data and gas production data for the selected region and time period. A production modeling system adapted to generate, based on the set of well performance data, a model of the performance of the selected region. A production operations system adapted to regulate, based on simulation of the model, operation of wells in the selected region.

The invention provides an intelligent warehousing method and system for barreled bulk materials, and relates to the technical field of warehouse logistics. The empty material barrels are delivered out of the warehouse, the empty material barrels are transported to a production area, and in the transportation process, the identification code patterns are printed on the empty material barrels; filling an empty material barrel, wherein the empty material barrel is in butt joint with a discharge port of any production device; matching and associating: matching and associating the identification code pattern of the charging basket, the production equipment and the timestamp information, and updating the matched and associated information into the identification code data information of the charging basket; sealing the material barrel; and the barreled bulk materials are put in storage, identification code data information of the material barrels is obtained, the material barrels containing the bulk materials of different varieties are transported to corresponding preset positions of a warehouse, and warehousing is completed. The multi-category and multi-variety bulk cargo storage device has the technical effects that the storage flexible adaptation capacity is enhanced, the requirement for the storage space is reduced, and the production and storage efficiency of multi-category and multi-variety bulk cargos is improved.

The utility model discloses a device for preventing reptiles from entering a production area through a factory building gate, which comprises a door frame, a glass sheet is attached and connected to the front side of the door frame, a pipe clamp is fixedly mounted on the front side of the door frame, an air distribution pipe is fixedly mounted on the inner side of the pipe clamp, and a connecting pipe is fixedly mounted at the upper end of the air distribution pipe. And a fixed seat is fixedly mounted on the front side of the door frame. According to the equipment for preventing the crawlers from entering the production area through the factory building gate, due to the fact that the glass sheets are arranged on the door frame and the glass surfaces are relatively smooth, for most crawlers, friction force between feet of the crawlers and the glass surfaces is small, the crawlers are difficult to stably climb on the vertical glass surfaces, and a primary physical barrier is provided; due to the arrangement of the air distribution pipe and the air holes on the inner side of the glass sheet, as the air holes face the glass sheet, an airflow layer with a certain speed and pressure can be formed on the surface of the glass sheet when airflow is blown out from the air holes, and the airflow can interfere with a crawler trying to climb the glass.

The invention discloses an automatic drainage system of a compressed air main pipeline and a control method of the automatic drainage system. The automatic drainage system comprises a water collecting device connected with a compressed air main pipeline, and the water collecting device is configured to collect and filter condensate in the compressed air main pipeline; a water inlet of the automatic steam trap is connected with the upper portion of the water collecting device, and a water outlet of the automatic steam trap is connected with a production area drainage ditch. The water collecting device can store and filter condensate flowing out of the compressed air main pipeline, the automatic steam trap is communicated with the upper portion of the water collecting device, and the working smoothness of the automatic steam trap can be guaranteed.

The application provides a coal mine gas extraction treatment method, and relates to the technical field of coalbed methane treatment. The method comprises the following steps: during the exploration period, finding out the coalbed methane geological conditions of the exploration area and performing ground pre-extraction of gas; during the production construction period, performing ground pre-extraction of gas in the planning area according to the coalbed methane geological conditions, performing joint extraction of gas above and below the well in the preparation area, and performing underground extraction of gas in the production area; and during the closing period, performing ground and underground extraction of gas in the goaf. The extraction treatment mode realizes efficient treatment of gas in the whole life cycle of the coal mine.

This invention discloses a leak gas absorption device for chemical safety production, comprising an I-shaped dual-purpose hoisting rail, an absorption box, an installation cylinder, a connecting pipe, and a gas detection sensor. The outer side of the top of the I-shaped dual-purpose hoisting rail has several hoisting holes. Several connecting plates are bolted to both the top and bottom of the I-shaped dual-purpose hoisting rail. Several threaded connecting holes are formed in the middle of the bottom end of the I-shaped dual-purpose hoisting rail. The combined assembly forms the I-shaped dual-purpose hoisting rail, achieving internal airflow guidance and supporting the function of a rolling track. It facilitates hoisting within the production area, does not occupy ground space, is easy to install and use, does not alter existing ventilation equipment, reduces gas leakage, and indirectly protects the production environment and atmospheric ecological environment. It ensures that the device can be moved from the top of the equipment to areas prone to leakage.